Warm Congratulations to Vanguard Machinery for Signing the EPC General Contracting Project of the 1,200 T/H Ore Production Line

Zhengzhou Vanguard Machinery Technology Co., Ltd. (hereinafter referred to as Vanguard Machinery) took the theme of "Innovative Manufacturing and Interconnecting the World" and brought a full range of products and solutions to the Shanghai Bauma Exhibition on November 26, 2024. With its outstanding professional strength and good market reputation, Vanguard Machinery successfully signed a large-scale 1,200 t/h ore production line EPC general contracting project.

As a grand event in the international engineering machinery industry, the Bauma Exhibition provides Vanguard Machinery with an important platform for expanding overseas markets and strengthening international cooperation and exchanges. At this Bauma Exhibition, the Vanguard Machinery exhibition area displayed its full range of solutions, from fixed crushing production lines to mobile crushing production lines, to industrial grinding and environmental protection production lines. Vanguard Machinery has attracted the attention of many people inside and outside the industry with its outstanding technical strength and rich product lines.

                        

In the exhibition area, Vanguard Machinery technical experts patiently answered visitors' questions, had in-depth exchanges with customers, and answered customers' professional questions about equipment selection, process flow, energy consumption control, etc. in detail. They also deeply analyzed the applicable scenarios and advantages of different solutions to help customers better choose products and services that suit them. This professional and meticulous service attitude won unanimous praise from visitors.

                         

Vanguard Machinery is still hot and exciting. We are waiting for you at E6.851!

How to Choose the Impact Plate of Impact Crusher?

 Choosing the right impact plate (or impact liner) for an impact crusher is crucial to ensure the efficient operation of the crusher and to extend its service life. The impact plate directly affects the crusher's performance, including the crushed product's size and quality, energy consumption, and maintenance costs. Here are the key factors to consider when selecting an impact plate for an impact crusher:

                    

1. Material Type

Hardness of Material: The type of material being crushed greatly influences the choice of the impact plate. For hard, abrasive materials (like granite, basalt, or iron ore), the impact plate should be made of high-quality, wear-resistant materials, such as high-chromium cast iron or martensitic steel. For softer materials, a less durable plate may suffice.

Feed Material Characteristics: Consider the material's moisture content, size distribution, and abrasiveness. For example, sticky or wet materials may require different impact plates or crusher configurations to prevent clogging or excessive wear.

2. Material of the Impact Plate

High Chromium Cast Iron: This is one of the most common materials for impact plates due to its excellent wear resistance. It is ideal for crushing hard, abrasive materials.

Martensitic Steel: This material has a higher toughness than high chromium cast iron and is often used for secondary and tertiary crushing applications. It provides a good balance of wear resistance and fracture toughness.

Ceramic or Ceramic Composites: In some cases, ceramic coatings are used to improve wear resistance, especially in highly abrasive applications.

Hardfacing Materials: In some cases, the impact plates may undergo hardfacing or welding of wear-resistant materials to extend their life.

                   

3. Impact Plate Design

Thickness and Shape: The thickness of the impact plate can affect both the wear life and the crushing efficiency. Thicker plates may last longer but may also affect the overall performance of the crusher. The design should optimize material flow, minimize blockages, and enhance impact energy distribution.

Replaceability: Choose impact plates that are easy to replace and maintain. This helps reduce downtime during maintenance and ensures the crusher continues to operate at peak efficiency.

Angle and Position: The angle at which the impact plate is positioned within the crusher affects the trajectory and impact of the material being crushed. Proper alignment and design can lead to more efficient size reduction and fewer blockages.

4. Wear Resistance and Durability

Wear Rate: Consider how quickly the material will wear the impact plates. In high-wear applications, the impact plate material should have high hardness and impact resistance.

Reversible Plates: Some impact plates are reversible, meaning they can be turned around and used on the other side to double their useful life. This is a cost-effective feature in some cases.

                     

5. Cost vs. Performance

There is a trade-off between the cost of the impact plate and its performance. While high-quality, durable materials may have a higher initial cost, they can save money over time by reducing the frequency of replacements and improving operational efficiency.

6. Environmental and Operating Conditions

Temperature: Operating temperature can influence the material choice. In very high or low temperatures, certain materials may become more brittle or less resistant to wear.

Operating Speed: High-speed crushers may require impact plates that can withstand more intense impact forces. The plate material should be selected to match the specific operational conditions.

                     

When choosing the impact plate for an impact crusher, the material type, durability, design, and cost all play significant roles. For harder, more abrasive materials, wear-resistant materials like high chromium cast iron or martensitic steel are recommended. It is essential to balance cost with performance, considering factors like the wear rate, ease of replacement, and specific operating conditions to ensure efficient and long-lasting operation of the crusher.

Types of Gold Ore Crushers and Prices-Vanguard Machinery Tech

Gold ore refers to gold-containing ore mined from mines by hand or machine, which also contains other metal impurities. After crushing, it is applied to electronic instruments, electrical, chemical, powder metallurgy and other industrial fields. However, which gold ore crushing equipment is better? Here is a detailed introduction to the types, prices and other contents.

                          

1. Types of gold ore crushers

Gold ore is often in irregular granular, lump, flake, mesh, dendrite, fiber and sponge aggregates, and its hardness is usually between 2-4. Specifically, the hardness of natural gold is about 2-3, while the hardness of deep gold ore can reach 4.5. These data show that it is relatively soft and can be processed with relatively simple equipment, so using the jaw crusher and cone crusher is better. The specific factors need to be considered comprehensively according to capacity, discharge size requirements, working conditions and other factors.

1). Jaw crusher

                       

As primary crushing equipment, it is often used for coarse crushing large pieces of ore. Its core components are a pair of movable jaw plates (moving jaw) and fixed jaw plates (fixed jaw). The eccentric shaft driven by a motor makes the movable jaw do periodic reciprocating motion, forming an extrusion and splitting effect on the material to complete the work. The deep V-shaped crushing cavity and the absence of dead zones improve efficiency and ensure uniform particle size of the final product. At the same time, wedge blocks are used to adjust the discharge port, which is easy to adjust and maintain.

2). Cone crusher

                        

It has a better effect on the fine crushing of ores. Its working principle is based on the mutual extrusion between the internal moving cone and the fixed cone. Different cavity types can be selected according to different needs to better meet user needs. The product particle size can be controlled by adjusting the size of the discharge port. It has a large crushing force, high efficiency, strong wear resistance, perfect overload protection, easy automatic control, and can effectively reduce the damage of non-crushed objects to the equipment.

2. How much is the price of a gold ore crusher?

There are differences in the price of gold ore crushers. Currently, the price in the market ranges from hundreds of thousands to millions of yuan. How to choose, in addition to the model, type and capacity, there are many manufacturers now. The raw materials, design, technology, etc. used in manufacturing equipment will cause quality changes, so it is also necessary to examine the quality and use effect, as well as other aspects.

The specific price of the gold ore crusher is subject to the manager's provision. Welcome to learn about the accurate and effective factory preferential quotation. In addition, Vanguard Machinery has established a modern testing base. The raw materials and workmanship are rigorous, and the quality is more guaranteed. You can come to the factory and workshop for on-site inspection at any time. For each customer, there is a technical team to provide installation, debugging, technical training and other after-sales services. 

5X1145 Sand Making Machine's Motor Power and Motor Power Consumption, and Price Influencing Factors

The price and motor power of a 5X1145 sand making machine can vary significantly based on the manufacturer, the specifications, and additional features.

                      

1. Motor Power：

The 5X1145 sand making machine can come with various configurations, including the option for a double motor setup. Here's a breakdown of the details regarding the motor and power consumption:

5X1145 Sand Making Machine with Double Motor

2. Motor Configuration:

1). Single Motor: Typically equipped with a single motor that can range from 110 kW to 160 kW.

2). Double Motor: In configurations where two motors are used, each motor may be rated between 75 kW to 90 kW, providing a combined power output of 150 kW to 180 kW. This setup can enhance the machine's efficiency and output.

                             

3. Motor Power Consumption: The actual power consumption depends on various factors, including:

1). Material type and hardness being processed

2). Operational conditions (e.g., load, humidity)

3). Maintenance and condition of the machine

In typical operation, the machine with a double motor setup might consume around 200 kW to 300 kW during peak operation. This is indicative of both motors running simultaneously under heavy load conditions.

4. Additional Considerations

1). Energy Efficiency: Double motor setups can improve efficiency, especially in high-demand applications, but they may also lead to higher energy costs.

2). Variable Frequency Drives (VFDs): Some configurations might include VFDs, allowing for better control of motor speed and reducing power consumption during lower load operations.

                    

5. Capacity: The machine can typically produce around 50 to 80 tons of sand per hour, depending on the material being processed and operational conditions.

6. Factors Influencing Price:

1). Brand reputation and manufacturer

2). Additional features (e.g., automation, control systems)

3). Warranty and after-sales service

4). Bulk purchasing or discounts

7. Additional Considerations

1). Maintenance Costs: Consider ongoing maintenance and operational costs when budgeting for a sand making machine.

2). Energy Efficiency: More efficient machines might have higher upfront costs but can save on energy over time.

3). Transport and Installation: Factor in costs for transporting the machine and any installation fees.

For precise quotes, it's best to contact manufacturers or suppliers directly, as they can provide detailed specifications and current pricing based on your requirements.

Bauma CHINA 2024 | Vanguard Machinery - Professional Manufacturer of Mining Machinery

 As a professional manufacturer in the field of mining machinery, Vanguard Machinery has always adhered to the corporate purpose of "pragmatic innovation, first-class quality, and first-class service", and its ultimate goal is to serve customers, satisfy customers, and design the most suitable production plan for customers. Adhering to the development concept of "meticulous design, excellent production, and sincere service", we will cooperate with customers for mutual benefit and make progress together.

Bauma CHINA 2024 | Vanguard Machinery is looking forward to your visit

Exhibition: Bauma CHINA 2024

Time: November 26-29, 2024

Location: Shanghai New International Expo Center (SNIEC)

Booth No.: E6.851

At this exhibition, Vanguard Machinery will exhibit various types of mining machinery and equipment such as crushing equipment, grinding equipment, and mineral processing equipment. At the same time, professional technicians will share typical customer cases in detail, allowing you to truly experience the excellent performance of the equipment in different scenarios. In addition, we will also conduct on-site equipment demonstrations, explain the working principles, technical features and operating points, and help you understand the products in depth. In addition, if you have personalized needs, our professional team will provide customized solution consultation, tailor-made equipment configuration solutions and process flows for you, and ensure that your investment can get the maximum return.

Contact number: +86 371 5557 8880

WhatsApp:+86-13333811995

Email: info@vanguardtec.com

Website: https://www.vanguardtec.com

We sincerely invite you to visit booth E6.851 to look closer at our products and technologies, communicate with our team of experts, and explore cooperation opportunities.

Indonesia International Mining Exhibition: A Mining Event to Build the Future

 Under the high attention of the global mining industry, the 2024 Indonesia International Mining Exhibition (Construction Indonesia & Mining Indonesia) will be held grandly at the Jakarta International Convention Center in Indonesia from September 11 to 14, 2024.

During the exhibition, the service team of Vanguard Machinery will answer all your questions with enthusiasm and professionalism, and can also provide personalized solutions according to your specific situation. Vanguard Machinery has been deeply involved in the industry for many years and has accumulated profound experience. Its successful cases are all over the world!

From September 11 to 14, 2024, Vanguard Machinery will be at booth NO. C3-6608 at the Jakarta International Convention Center, waiting for your arrival!

Glory Moment | Vanguard Machinery's 350 T/H Diabase Crushing Project was Successfully Launched in Russia

 Recently, Vanguard Machinery's 350 t/h diabase crushing production line project was successfully put into production in Russia. Vanguard Machinery provided overall solution design, installation and EPC general contracting services for this project. The smooth operation of the production line has once again consolidated Vanguard Machinery's influence in the Russian market, marking that the company's technical strength and service advantages in the global market have been verified again.

It is understood that the production line is equipped with the latest technological achievements of Vanguard Machinery, including 912 jaw crusher, CS840 single-cylinder cone crusher and YK2870 series vibrating screen. These equipment can perform well in complex production environments with their excellent performance and reliability, especially in low-temperature conditions, while maintaining stable and efficient operation. This is an important consideration for cold climate regions such as Russia. To enable them to work without load below minus 50 degrees Celsius and adapt to the high-intensity production needs in extremely low-temperature environments, Vanguard Machinery adopted measures such as selecting fuel oil with a lower freezing point, replacing gear oil with gear lubricating oil and grease for winter, and using high-quality brake fluid in the brake system in the early stage of design to cope with high-demand environmental conditions and strict operating requirements. Vanguard Machinery not only carefully optimized the equipment design, but also provided professional after-sales installation services, successfully overcame challenges, and won unanimous praise from customers. The customer highly praised the professionalism and efficient execution demonstrated by the Vanguard Machinery team during the project delivery process, believing that this was not only an equipment purchase, but also a manifestation of trust in partners.

Vanguard Machinery will continue to use innovation as a driving force to provide efficient and reliable solutions to global customers and continuously promote the advancement of industry technology and the improvement of service levels. In the future, we look forward to performing well in more challenging environments and creating more glorious moments with our customers.

What Is the Reduction Ratio of the Crusher?

 When purchasing crushers, especially jaw crushers for coarse crushing, we often see a word: large reduction ratio. So, what is the reduction ratio of the crusher? What are the commonly used calculation methods?

What is the reduction ratio of the crusher?

    After the ore is blasted, there are mostly large stones of different sizes. They must be crushed by the crusher before they can meet the needs of the project. So do these stones need single-stage crushing or multi-stage crushing? The reduction ratio is a very important factor.

The reduction ratio refers to the ratio of the feed particle size to the product particle size in the crusher, which indicates the degree of material crushing, which directly affects the energy consumption and processing capacity of the crusher.

Commonly used calculation method of reduction ratio

    The reduction ratio has a professional calculation method, which is divided into three types according to different situations:

1. Particle size reduction ratio:the ratio of large block size before and after crushing

Calculation formula:I = larger diameter of feeding material / larger diameter of finished product

    Due to the different habits of each, the large-granularity value method is different. British and American take the sieve width at which 80% of the material can pass through the sieve hole as the large particle size diameter. China and the Soviet Union, 95% of the material can pass through the sieve hole width as the diameter of the large particle size.

Application object:This calculation method is often used in quarries because the width of the feed port of the crusher should be determined according to the large particle size of the ore in the design.

2. Surface reduction ratio:the ratio of the width of the crusher inlet to the width of the outlet

Calculation formula:I=0.85B/S (inlet width/discharge width referred to here)

0.85 is the width coefficient of the crusher to accommodate the material. The value S of the width of the discharge port: the coarse crusher is different from the medium and fine crusher, and the former takes the larger width; The latter takes the smaller width.

Application object:Because this method does not need to do screening analysis of a large number of materials, the approximate calculation can be carried out until the width of the feed port and the discharge port of the crusher, which is simple and fast, so it is widely used in production.

3. Average reduction ratio:the ratio of the average particle size of the material before and after crushing.

Calculation formula:I=average particle size of material before crushing/average particle size of material after crushing

Application object:Because the size and shape of the ores before and after crushing are different, they can only be represented by the average particle size. Therefore, the crushing ratio calculated by the average particle size can reflect the degree of crushing more truly, so it is mostly used in theoretical research.

    In actual production, the appropriate calculation method of the reduction ratio should be selected according to the specific work content of the crusher.

A Detailed Explanation of the 7 Differences Between Cone Crusher and Jaw Crusher in Fine Crushing

 In the stone crushing production line, the reasonable configuration of crushing equipment plays a crucial role in increasing production and improving the stone shape and particle size distribution. Currently, the entire crushing production line process includes three main stages: coarse crushing, medium and fine crushing, and screening. In the fine crushing stage, there are many crushers to choose from. What kind of equipment is more suitable?

The structure and principle of the fine jaw crusher are similar to those of the jaw crusher. The working mode is the flexural extrusion type. The materials are squeezed and crushed in the crushing chamber composed of a movable and fixed jaw. The cone crusher adopts laminated crushing. The mortar wall continuously moves toward the crushing wall to squeeze the materials sandwiched between the two and crush them.

The difference between the two in actual production:

1. Production characteristics

Generally speaking, fine jaw crusher and cone crusher have the following characteristics:

1) The feed particle size range of the fine jaw crusher is relatively large, and it can generally process materials below 1000mm, while the cone crusher is relatively strict, generally requiring less than 300mm (depending on the specific situation of the product);

2) In terms of processing capacity, the cone crusher far exceeds the fine jaw crusher, generally up to 1000 t/h, more than twice that of the fine jaw crusher;

3) In processing hard materials, the compressive strength of the two is the same, between 300-350Mpa.

2. Overall structure

From the overall structure, the cone crusher is 1.7-2 times heavier than the fine jaw crusher with the same feed size, and the body is generally 2-3 times higher than the fine jaw crusher, so with a relatively large construction cost of the plant.

3. Processing materials

The cone crusher is not applied for crushing wet and sticky ores, while the fine jaw crusher can process almost all kinds of materials.

4. Feeding requirements

The cone crusher can be filled with ore and directly fed without adding silo and feeders. However, the fine jaw crusher cannot be filled with ore and requires uniform ore feeding, so it is necessary to set up additional silos and feeders, which increases the investment cost of auxiliary equipment.

5. Finished product particle shape

The finished products of the cone crusher are more needle-shaped, and compared with the fine jaw crusher, the shaping effect of the cone crusher is slightly better in general.

6. Price comparison

The cone crusher price is much more expensive than that of the fine jaw crusher.

7. Use and maintenance

We know that no matter which kind of crushing equipment, it is inevitable to do regular inspections and maintenance. Despite the high initial investment cost of the cone crusher, a low failure rate in the later stage, the long replacement cycle of wearing parts, and the convenient maintenance and repair, which saves a lot of manpower and material investment.

We know that it is uncertain to choose which equipment to use for medium and fine crushing through the comparison of the above characteristics. We should consider it comprehensively when purchasing. Considering the equipment cost, when both equipment can meet the crushing needs and the required quantity is the same, we generally choose the fine jaw crusher; For large-scale factory production operations, it should apply the cone crusher; When crushing wet and sticky ores, it should apply the fine jaw crusher; When processing flake or long-strip hard ores, it should apply the cone crusher is suitable. The specific equipment selection still depends on the user's production requirements.

What to do if there is too much Stone Powder in Machine-made Sand? 6 Ways to Control Stone Powder

 Four forms of stone powder in machine-made sand:

(1) Free powder: Stone powder particles do not adhere to each other or adsorb on the surface of sand and can move freely under the action of wind and gravity.

(2) Agglomerated powder: Stone powder particles are tightly aggregated together to form larger stone powder agglomerates, and the particles adhere to each other and aggregate. This type of stone powder aggregate is difficult to remove by traditional powder classification equipment due to the large particle size and mass of the agglomerates.

(3) Adherent powder: Stone powder particles are attached to the surface of larger sand particles. When the surface of the sand particles is relatively smooth, the stone powder particles are easy to remove under mechanical force, but when the surface of the sand particles is uneven, the stone powder particles and the sand particles tightly adhere to each other, and it is difficult to separate them by general mechanical methods.

(4) Cracked powder: There are often some natural cracks on the surface of sand particles, which are tens to hundreds of microns wide or generated by mechanical crushing. These cracks are often filled with a large number of stone powder particles. This is the most compact way of stone powder adhesion.

Stone dust control technology

The 6 types of stone dust control technologies and equipment are as follows:

1. Feeding vibrating grate screen

The increased mud content in machine-made sand will increase water demand and affect the strength of concrete, thus affecting its compression capacity. Therefore, before the raw materials enter the sand making process, they need to be sifted and discarded, which can significantly reduce the moisture content of the raw materials.

According to different material conditions, select the appropriate screen bar spacing to achieve different mud removal effects; For working conditions where the mountain bark is thick, the vegetation is difficult to remove, the mountain is severely weathered, and the interlayer contains large amounts of mud, which is easy to mix with soil, increasing the spacing between screen bars can effectively reduce the mud content.

2. Aggregate chute powder removal device

A certain specification of aggregate from the screening machine enters the aggregate unloading chute after the screening. An integrally detachable diffusion air distribution chamber is arranged in a suitable place, and the blower is connected to it. In this way, the free dust on the aggregate surface is blown up by the blower when passing through the chute and is collected in the dust collector under the suction effect of the dust collector.

In addition, the suction volume of the dust collector can be controlled by adjusting the pipeline regulating valve. When the blower adopts the variable frequency form, the ratio of blowing and suction is adjusted by the variable frequency control of the blower and the adjustment of the regulating valve, to realize the continuous control of the powder content of the finished sand and gravel aggregate within a certain range.

3. High frequency vibration screening pretreatment

Basic principle: The machine-made sand is preprocessed by high-frequency vibration to disperse the powder, separate the powder, coarsely and finely classify the sand, and then remove the stone powder contained by the wind.

Specific method: After the material is crushed by the sand making machine when it enters the screening module, it can be bulked through the bulker or the spiral material lever. This has a preliminary dispersion effect on the agglomerated and adhered stone powder and improves the quality of the material. The uniformity of distribution, at this time, the stone powder can be selected through the air separation device. After primary classification, the materials enter a high-frequency vibrating screen with a vibration frequency of 60-80HZ and an amplitude of 0.15-2.4mm for screening. The vibration intensity of this equipment is 3.5-5 times that of ordinary equipment, which can generate greater mechanical force and has a good dispersion and separation effect on agglomerated stone powder and surface-adhesive stone powder. At the same time, the coarse and fine classification of machine-made sand is efficiently achieved.

Compared with ordinary vibrating screens, the powder removal efficiency of machine-made sand after being screened by high-frequency vibrating screens is significantly increased by about 40%, and the required air volume is reduced by 45%.

4. Centrifugal powder classifier

The powder classifier is used in the sand making process. Its main function is to separate excess stone powder and useful particles and recycle them separately.

Its working principle is: to mix gas and powder to form a gas-solid two-phase flow. The rotating scattering disc and high-speed airflow make the powder-containing airflow obtain centrifugal force during rotation. The centrifugal force obtained by particles of different particle sizes is different, thereby realizing the separation of coarse and fine powder particles. At the same time, the coarse and fine powder particles are recycled separately by corresponding methods. The useful particles are the finished sand, and the useless fine powder is the waste material.

From the position of the powder separator installed in the building station, it is divided into raw material powder classifier and finished material powder selection process layout. The powder classifier has strict requirements on the moisture content. When the moisture content of the feed is higher than 5%, the powder removal efficiency of the powder separator will be seriously reduced. When the moisture content of the feed is 2%, the powder separator can better exert its efficiency, and the sand formation rate is between 60%-70%.

5. V-type static classifier + dynamic high-efficiency classifier

The raw materials enter the sand making machine, and after vibration screening, the coarse powder returns to the sand making machine, and the fine powder is sent to the combined classifier of the V-type static classifier + dynamic high-efficiency powder classifier. After being homogenized by the material distributor, it enters the classification system, the coarse particles enter the finished product warehouse, and the fine particles and fine powder enter the dynamic classifier with airflow. By adjusting the speed of the dynamic powder selector, the sand and gravel classification is adjusted, and the qualified products are discharged from the coarse powder pipe into the finished product warehouse. Adjust the particle grading of the finished product, and the fine powder is collected by the cyclone dust collector with the airflow and enters the stone powder warehouse. The airflow enters the V-type air inlet through the circulating blower.

6. Air Screen

The air screen combines wind separation technology based on vibration screening to realize the three functions of particle size adjustment, grading and screening.

Its working principle: The material is evenly spread under the action of the air screen dispersion device and blown to different positions of the air selection chamber by the blower. The lighter the material (the smaller the particle size), the farther it is blown away and the longer the screening distance; The lightest stone powder will be blown to the powder outlet position, adsorbed by the dust collector-induced draft blower, and finally concentrated in the powder tank. At the same time, the particle size adjustment plate automatically adjusts the proportion of the returned material to fine-tune the fineness modulus of the finished sand, thereby ensuring the stability of the fineness modulus of the finished sand.

For the dry sand making system using an air screen, the raw materials need to control their moisture content below 1.6% (surface moisture content 0.6%), without mud, and the feed particle size is 0-25mm and the gradation is continuous. If the raw materials change, the system capacity will change accordingly. If the raw materials contain too much mud or stone powder, separation processes such as powder classifier or powder removal equipment need to be used in the front stage.