Guinea's 1000 T/H Bauxite Crushing Project—Leading the Peak of Mining Development in West Africa

 The Republic of Guinea is located on the west coast of West Africa. The country is rich in resources, and its bauxite ranks first in the world. The coastal areas have a tropical monsoon climate, with high temperatures and rain all year round with abundant rainfall.

The main processing raw material of Vanguard Machinery's 1000 t/h bauxite crushing project is bauxite, also known as aluminum, aluminous soil. It is an earthy mineral composed of alumina with low hardness, insoluble in water and soluble in sulfuric acid, which can be used for aluminum smelting and the manufacture of refractory materials. In order to improve the comprehensive recycling rate of bauxite, it is necessary to crush the bauxite.

Technical requirements for Vanguard Machinery's 1000 t/h bauxite project:

Raw material: bauxite

Capacity: 1000 t/h

Final product material requirements: 0-100 mm

The proportion of raw materials: 0-40 mm materials account for 40%, and materials below 100 mm account for 50%.

Things that need attention in the project: The area is rainy, which will cause the viscosity of the raw materials to increase, so material blockage must be avoided. The demand for production output is large, and the stable operation of the equipment is required.

The raw materials of this project are highly viscous and the site conditions are special. Vanguard Machinery's technical engineers analyzed, discussed and designed it based on the local environmental topography and the specific conditions of the customer. After fully understanding the customer's production line capacity, final particle size, and investment cost budget. After meeting the customer's needs, we will tailor the production line and layout plan for the customer, and focus on improving and optimizing the following aspects to ensure that the design plan can achieve the desired effect.

1. Considering the high viscosity of the customer's raw materials, we selected a rod feeder for the main equipment of the feeding part, and improved the inlet and outlet of the hopper so that the feeding part can be smooth without clogging, and the finished material classification can be adjusted vibrating screen configuration is used to achieve multi-stage screening, which can synchronize multi-stage discharging and accurately control the particle size of final product;

2. Select Vanguard Machinery's star product 6CX series European type jaw crusher for primary crushing. It is specially designed with a detachable structural rack, optimized cavity structure, double wedge block adjustment device, elastic limit shock absorption device, and integrated motor base with high crushing efficiency, low investment cost, long service life and stability. It can process ores with compressive strength not higher than 320 MPa to medium particle size at one time.

3. The standard two-stage crushing process, multiple crushers and multiple screens, and the cooperation of multiple units can achieve a production line with a daily output of ten thousand tons. Combined with the transfer hopper, it can be configured into a large or super-large crushing production line. The secondary crushing equipment uses a single-cylinder cone crusher and laminated crushing, high production efficiency, wear-resistant and durable, low operating cost, easy to control.

4. The entire line adopts a steel frame assembled structure, and each part is connected with welds, screws or rivets with a short construction period, quick production, and portable disassembly and assembly.

Commissioning and delivery:

Installation and debugging personnel from the front line of project production participate in and manage the project equipment installation and debugging throughout the entire process, quickly solve common problems that arise during on-site steel frame assembly and installation work, and adjust the construction plan in real-time. Vanguard Machinery completed the installation and commissioning work of the Guinea project with high quality within a limited time.

The 1000 t/h bauxite crushing production line project in Guinea was successfully put into production within a short period of time. This not only fully reflects the outstanding crushing technology strength and product advantages of Vanguard Machinery, but also won further recognition for Vanguard Machinery in the region. Once again proved that our service commitment is not a slogan, a concept and an advertisement, but our service commitment is seriously practiced.

Differences and Purchasing Guide Between Stationary, Mobile and Semi-mobile Crushing Production Lines!

In mining, crushing equipment has a wide range of applications and plays an important role in the processing and handling of various ores. By crushing different types of ores, the needs of various major industrial fields can be met. Different types of ores require different crushing processes and equipment. Therefore, it is necessary to comprehensively consider factors such as process requirements, equipment parameters, and quality requirements according to the actual situation to select appropriate crushing equipment. Crushing equipment can be divided into three types: stationary, mobile and semi-mobile crusher. This article will elaborate on these three types of crushing equipment and analyze their differences.

1. Stationary crushing equipment:

Stationary crushing equipment requires the construction of a foundation, with large civil and labor investments. These infrastructures are usually designed and constructed based on the size, weight, and production capacity of the equipment. The requirements for site selection are relatively high, and the site needs to be fully utilized. Once the site needs to be moved to another location, the original infrastructure usually needs to be dismantled and rebuilt.

Stationary crushing equipment is usually used together with feeders, crushers, vibrating screens, conveyors and other equipment to form a production line to form a complete production system. Such a production line can be configured and adjusted according to specific material crushing requirements and process flow. To achieve efficient crushing and screening operations.

2. Mobile crushing plant:

Mobile crushing plant is divided into tire-type mobile crushing plant and crawler-type mobile crushing plant. The tire-type mobile crushing plant relies on the front of a semi-trailer for traction, while the crawler-type mobile crushing plant adopts a self-driven mode, which can realize on-site steering and can be driven to a destination through wireless remote control. on a trailer for quick transitions. The mobile crushing plant does not require the construction of a factory building or civil foundation, which reduces the investment and time of project construction. It also avoids material transfer and reduces transportation costs, and the construction period is short.

The mobile crushing plant breaks through the limitations of site, environment, basic configuration and logistics. It can operate independently as a single unit and can be combined with different models to form a powerful crushing operation assembly line to complete processing operations with multiple needs and improve overall work efficiency. The mobile crushing plant can configure jaw crusher series, cone crusher series, impact crusher series, sand making machine and other crushers according to the customer's material type and product requirements in the process, providing more flexible process configurations to meet users' mobile crushing, mobile screening and other various needs.

3. Semi-mobile crushing plant:

The semi-mobile crushing plant itself does not have the function of traveling and needs to rely on external equipment, such as trailers or cranes, so it can be relocated and transferred quickly. The semi-mobile crushing plant does not require tedious civil construction work, thus saving a lot of time and cost, shortening the project cycle and improving overall efficiency.

The semi-mobile crushing plant is a multi-dimensional integrated frame structure solution composed of one or several crushing and screening unit modules. It is a semi-mobile frame structure mobile crushing plant mainly used in the primary and secondary crushing and screening stages of medium and soft hard rocks, construction waste, concrete blocks and other raw materials. It can be widely used in urban construction waste treatment, mining and tunnel construction rock crushing.

4. The difference between feed size and capacity

5. Equipment purchase suggestions:

Determine usage scenarios and needs: Consider factors such as the type of materials that need to be processed, processing volume, working hours, production requirements and budget.

Define equipment specifications: Understand the parameter information of the equipment, including motor power, speed, number of strokes, and parameters such as rotor diameter, speed, and crushing cavity type of the crusher, and determine appropriate equipment specifications and processing capabilities.

Consider mobility requirements: If frequent transfers or temporary work are required, choose a mobile crushing plant or semi-mobile crushing plant; If long-term stable operation is required, choose stationary crushing equipment.

Understand the manufacturer and service: Understand the manufacturer's reputation and after-sales service. A good manufacturer should provide comprehensive technical support and after-sales service to ensure the normal operation and maintenance of the equipment.

Consider cost-effectiveness: Comprehensively consider factors such as equipment price, operating costs, maintenance costs, and service life to ensure that the equipment can achieve a win-win cost-effectiveness in the long term.

When selecting the type of crushing equipment, factors such as material type, production needs, budget constraints, frequency of site transfers, and the cost and workload of infrastructure construction and dismantling need to be considered. If you still don't know how to choose equipment, you can consult Vanguard Machinery's engineers. The engineers will tailor a plan for you to help you make a reasonable selection.

Exchange Reputation with Service and Win Customers with Quality

 As an enterprise specializing in the research and development, production, sales and service of mining machinery and equipment, we always adhere to the customer-centered approach and achieve customer value with excellent service. In the fiercely competitive machinery and equipment industry, Vanguard Machinery has won the trust of customers and market recognition with its unique business philosophy and excellent service levels. This article will provide an in-depth analysis of Vanguard Machinery's service content, service advantages and specific service processes to demonstrate the company's strength and value.

1. Service Content

(1). Equipment sales:

Vanguard Machinery provides sales and services of various mining machinery and equipment. Its main series of products include the jaw crusher, impact crusher, cone crusher, sand making machine, mobile crushing plant, etc. The company has independent research and development capabilities and good production technology and processes. The company has more than 50,000 square meters of modern standardized factory buildings and top equipment processing and manufacturing capabilities in the industry. It has more than 50 modern processing equipment, with strong strength and strong technical strength. We can provide high-quality equipment and supporting products according to customer needs.

(2). Equipment installation and debugging:

The installation and debugging of equipment is a highly technical task that requires professional technicians to operate it. Vanguard Machinery will dispatch professional technicians to install and debug the equipment to ensure that the equipment operates normally and meets customer requirements.

Before the equipment is installed, the installation location and layout of the equipment will be confirmed, the equipment and accessories will be checked for completeness, necessary safety measures and tools will be prepared, etc., and then the equipment will be installed in accordance with the prescribed procedures and requirements; after the equipment installation is completed, the equipment will need to be inspected conduct debugging, which includes checking whether all parts of the equipment are installed correctly, whether they are loose or damaged, and testing the various functions of the equipment. During the debugging process, corresponding adjustments and settings need to be made according to the equipment's operating manual and technical requirements. After equipment debugging is completed, operational tests are conducted to verify the performance and functionality of the equipment. This may include no-load operation, load operation, operation stability testing of the equipment, etc.; after the installation and commissioning of the equipment are completed, customers usually need to be trained so that they can operate and maintain the equipment proficiently.

(3). Equipment after-sales repair and maintenance:

Vanguard Machinery provides a full range of after-sales services, mainly including regular inspection, maintenance and troubleshooting to ensure that customers can receive timely support and solutions during use. During the warranty period of the equipment, if there is a malfunction or problem with the equipment, the customer can contact the company for repair. The company will dispatch experienced maintenance engineers to the site in time to perform repairs to ensure the normal operation of the equipment.

(4). Spare parts supply:

Vanguard Machinery has a deep understanding of customer needs, carefully selects high-quality raw materials, and adopts excellent production processes to ensure that every component meets high-quality standards, with sufficient inventory and an efficient supply chain. The company provides original or certified spare parts supply services to ensure that customers can obtain the required spare parts in time to ensure the normal operation of the equipment.

(5). Equipment upgrade and transformation:

Vanguard Machinery can make technical improvements, functional enhancements or structural optimizations to existing equipment, such as the finished product has more pins and flakes; the equipment is more worn; the on-site transformer is small; there is old equipment and you want to replace or increase production, etc. In these cases, the company will select appropriate equipment upgrade and transformation plans based on your specific needs and budget, combined with the actual conditions on site, to improve equipment performance, production efficiency and product quality, reduce energy consumption, reduce labor costs, and also reduce equipment costs. Failures and downtime are reduced, repair costs are reduced, and equipment life is extended.

2. Service process

Demand analysis: Communicate with customers to understand specific needs and requirements, including production scale, product type, technical requirements, budget, etc., to ensure that customers are provided with equipment solutions that meet their actual needs.

Technical solution design: Based on the customer's needs and requirements, Vanguard Machinery will design a corresponding technical solution, which includes detailed information such as equipment type, specifications, functions, and performance, as well as relevant technical parameters and drawings.

Quotation and contract signing: The company will provide a quotation based on the technical solution. The quotation will include equipment price, delivery time, after-sales service, etc., after which both parties will sign a formal sales contract.

Production and delivery: Once the contract is signed, the company starts to produce the equipment. During the production process, the company will strictly follow the technical plan and quality standards to ensure the quality of the equipment. After the equipment is produced, on-site testing will be arranged and delivered on time within the delivery period.

Facing the future, Vanguard Machinery will continue to adhere to the "customer-centered" service concept, continue to innovate technology, and improve product quality and service levels. The company will continue to expand market coverage and expand new business areas to meet the needs of more customers. At the same time, Vanguard Machinery will also actively participate in international exchanges and cooperation to continuously improve its competitiveness and internationalization level.

Jaw Crusher Troubleshooting Guide: From Cause to Solution-Vanguard Machinery Tech

 Jaw crusher, also known as jaw stone crusher, is mainly suitable for crushing various ores and rocks with medium hardness and below. It is widely used in industries such as mining, metallurgy, building materials, highways, railways, water conservancy, and chemical engineering. When using a jaw crusher, it is necessary to comply with relevant safety operating procedures, regularly inspect and maintain the equipment, and periodically replace wearing parts to ensure that the equipment operates normally and stably.

Common causes and solutions for jaw crusher faults are as follows:

1. Failure phenomenon: feed inlet blockage.

Failure reason 1: Excessive or uneven feeding, resulting in material blockage at the feeding port.

Solution: To avoid excessive input at one time, control the reasonable amount of material input. Adjust the feeding method to ensure that materials are fed evenly.

Failure reason 2: It can also easily cause blockages at the feeding inlet when the feeding material is too large or too hard

Solution: The materials are coarsely crushed or screened in advance to make them meet the processing capacity of the jaw crusher; If the material has a higher hardness, you can consider using more wear-resistant jaw plates and hammerheads.

Failure reason 3: The design of the feed port is unreasonable. The width of the feed port is too small or the shape is not suitable for material flow, which can also easily cause blockage.

Solution: Optimize the design of the feed port to ensure appropriate width and smooth shape, which is conducive to the smooth flow of materials; Clean the feed port regularly to avoid clogging due to long-term use.

2. Failure phenomenon: The jaw plate is loose or damaged

Failure reason 1: The fixing bolts of the jaw plate are loose, causing the overall jaw plate to become loose.

Solution: Check the condition of the jaw plate fixing bolts and tighten them to the specified torque; Regularly check the tightening condition of the jaw plate fixing bolts, and tighten them in time if they are found to be loose.

Failure reason 2: The jaw plate is severely worn and cannot complete the crushing task normally.

Solution: Regularly check the wear of the jaw plate. If serious wear is found, the jaw plate needs to be replaced in time. When replacing the jaw plate, please choose a jaw plate that meets the specified size and material, and replace it according to the manufacturer's requirements.

3. Fault phenomenon: The discharge port is blocked

Failure reason 1: Wet or sticky materials tend to form blocks near the discharge port and block the discharge port.

Solution: Clean up the accumulation of materials around the discharge port, and use appropriate tools to remove the blocking materials. If you encounter wet materials, you can consider heating or drying them to make them flow easier during the crushing process.

Failure reason 2: The design of the discharge port is unreasonable, the width is too small or the shape is poor, which can easily cause material blockage.

Solution: Re-evaluate and optimize the design of the discharge port to ensure that the width is appropriate and the shape can smoothly guide the flow of materials; Clean the discharge port regularly to avoid long-term accumulation of materials and blockage.

Failure reason 3: The material in the crushing cavity is not discharged in time, causing the blockage.

Solution: Check whether the feeding system and discharging system are working properly to ensure that materials can enter and exit the crushing cavity smoothly, ensure that the crushing parameters of the crusher are reasonable, and avoid excessive fine crushing that makes it difficult for materials to be discharged smoothly.

4. Fault phenomenon: After a sudden violent cracking sound occurs during the operation of the main machine, the movable jaw does not move, the flywheel continues to rotate, and the pull rod spring relaxes.

Failure reason 1: The jaw plate is cracked or broken. The cracking sound and the immobility of the movable jaw may be caused by the cracked or broken jaw plate. This may be caused by overloading, excessive clamping, or abnormal materials.

Solution: Stop the machine and check the status of the jaw plate. If rupture or breakage is found, the jaw plate needs to be replaced in time and the cause should be found to avoid similar problems from happening again.

Failure reason 2: It may be that the tension rod spring is relaxed due to the rupture or breakage of the jaw plate. When the jaw plate is damaged, the tension rod spring loses its supporting role, resulting in relaxation.

Solution: After replacing the damaged jaw plate, check and adjust the tension of the tie rod spring to ensure that it can provide sufficient support.

Failure reason 3: The cause of sudden violent sound may also be caused by damage or failure of other parts, such as broken bearings, damaged transmission devices, etc.

Solution: Carry out a comprehensive inspection after shutdown to determine whether there are other component failures. If faulty parts are found, they need to be repaired or replaced according to the specific situation.

5. Fault phenomenon: The host suddenly shuts down (commonly known as Blocking run).

Failure reason 1: The discharge port is blocked, causing the cavity to be full of material.

Solution: Clear the blockage at the discharge port to ensure smooth discharge, or appropriately reduce the feed speed to ensure smooth material supply.

Failure reason 2: The V-belt that drives the sheave to rotate is too loose, causing the belt to slip.

Solution: Check the tightness and wear of the V-belt, and make appropriate adjustments or replace the V-belt with a new one in time.

Failure reason 3: The tightening bushing of the eccentric shaft is loose, resulting in no clearance on both sides of the bearing seat of the rack, causing the eccentric shaft to become stuck and unable to rotate.

Solution: Check the looseness of the eccentric shaft tightening bushing and reinstall the tightening bushing; Check the condition of the bearing seat of the rack to determine whether there are wear and other problems. If there is any problem, you can try to replace the bearing seat with a new one; adjust appropriately. The position of the eccentric shaft avoids problems such as excessive looseness or jamming.

Failure reason 4: The voltage at the work site is too low, and the host is unable to break when encountering aniseed.

Solution: Check whether the voltage is stable or too low. If this situation exists, adjust it; If the power line is aging or too long, it may also cause the voltage to drop. It is recommended to replace the power line with a new one to ensure that the connection of the new line is stable and reliable; If the voltage is too low for a long time, you can consider installing a voltage regulator to stabilize the voltage of the equipment to ensure that the voltage is stable when the equipment is working.

Failure reason 5: Bearing damage.

Solution: After confirming that the bearing is damaged, you need to stop the machine immediately for inspection and replace the bearing with a new one in time.

6. Fault phenomenon: Broken toggle plate

Failure reason 1: When the jaw crusher exceeds its rated power or the hardness of the material processed is too high, the toggle plate will break.

Solution: Strictly abide by the rated power requirements of the jaw crusher and do not exceed the power range specified by its design; Select the appropriate crusher model and specification according to the hardness of the material to ensure that the equipment can process the material normally; For materials with higher hardness, pretreatment measures can be considered to reduce the impact of the jaw crusher on the material.

Failure reason 2: There are material defects or poor welding problems in the manufacturing of the toggle plate, which may cause the toggle plate to break.

Solution: Replace the broken toggle plate according to the specific situation.

Failure reason 3: Long-term use and wear may cause the strength of the toggle plate to decrease and eventually break.

Solution: Check and maintain the equipment regularly, check whether the toggle plate has obvious damage or wear, and repair or replace it in time; Operate the equipment in accordance with the manufacturer's guidance and specifications, avoid excessive or improper use, and reduce damage and wear to the toggle plate; Select the appropriate crusher model and specifications based on the characteristics of the material to avoid additional wear and damage to the toggle plate caused by the use of unsuitable equipment.

Failure reason 4: The toggle plate and toggle plate pad are not parallel and skewed, which may cause abnormal operation and failure of the jaw crusher.

Solution: Check and replace the toggle plate to ensure proper alignment and tightening; Check the toggle plate pad for wear and replace if necessary.

7. Failure phenomenon: eccentric shaft bent or broken

Failure reason 1: Overload or foreign matter entering may cause the eccentric shaft to bend or break due to excessive pressure.

Solution: Make sure to comply with the rated load when using the equipment, and clean foreign objects in the crushing cavity in time.

Failure reason 2: Equipment aging or wear. Long-term use and wear may cause the strength of the jaw crusher components to decrease, including the eccentric shaft.

Solution: Check the equipment regularly and replace worn parts as necessary to ensure normal operation of the equipment.

Failure reason 3: Improper installation or maintenance of the eccentric shaft may also cause it to bend or break.

Solution: Make sure the eccentric shaft is installed correctly and perform regular maintenance according to the maintenance guidelines provided by the manufacturer.

Failure reason 4: Quality problems with the eccentric shaft. There may be quality problems with the eccentric shaft during the manufacturing process, such as material defects or poor processing.

Solution: It is recommended to contact the equipment manufacturer to ensure that the manufacturer strictly abides by the production process and quality requirements, takes quality control measures to ensure material quality, and uses high-quality materials to produce eccentric shafts.

8. Failure phenomenon: movable jaw fracture

Failure reason 1: Overload or material hardness is too high. When the jaw crusher is overloaded or handles materials that are too large and too hard, the movable jaw is subjected to pressure that exceeds its bearing capacity, causing it to break.

Solution: Avoid overload operation, control the hardness and size of the material, and ensure operation within the normal working range of the equipment.

Failure reason 2: Material or quality problems of the movable jaw. The material of the movable jaw is inappropriate or has quality problems, such as containing pores, inclusions, etc., which may cause its strength to be insufficient or easy to break.

Solution: Use high-quality, reliable materials to manufacture the movable jaw, and conduct necessary quality inspection and control.

Failure reason 3: Equipment wear or aging. Long-term use and wear will reduce the strength and durability of the movable jaw and increase the risk of breakage.

Solution: Regularly check the wear and tear of the equipment and replace seriously worn parts in time to maintain the normal operation of the equipment.

Failure reason 4: Improper installation or maintenance. The movable jaw is not installed correctly or maintained improperly, such as loose fastening bolts, insufficient lubrication, etc., which may cause it to break.

Solution: Make sure the movable jaw is installed correctly and perform regular maintenance according to the manufacturer's recommendations to ensure the normal operation of the equipment.

9. Fault phenomenon: The movable jaw plate and the fixed jaw plate vibrate and produce impact sounds.

Failure reason 1: The wear of the movable jaw plate and the fixed jaw plate results in poor coordination between them, resulting in vibration and impact sounds.

Solution: Check and replace the severely worn movable jaw plate and fixed jaw plate.

Failure reason 2: The support structure or bearings may be loose, damaged or worn, causing the movable jaw plate and fixed jaw plate to be unstable, causing jitter and impact sounds.

Solution: Inspect and repair or replace damaged support structures or bearings.

Failure reason 3: The clearance between the movable jaw plate and the fixed jaw plate is improperly adjusted. If it is too large or too small, it will cause shaking and collision sounds.

Solution: Adjust the clearance between the movable jaw plate and the fixed jaw plate to ensure proper working conditions.

Failure reason 4: The presence of foreign matter or blockage in the crushing cavity will interfere with the normal movement of the movable jaw plate and the fixed jaw plate, causing shaking and impact sounds.

Solution: Clean the foreign matter or blockage in the crushing cavity.

The above are some common faults and emergency solutions. The specific situation needs to be analyzed according to the specific fault, and corresponding measures should be taken to solve the problem and ensure the normal operation of the equipment. At the same time, equipment should be maintained and maintained regularly, inspection and repair work should be strengthened, and the reliability and service life of the equipment should be improved to ensure production efficiency and safe operation.

Vanguard Machinery has an experienced technical team to provide customers with all-around technical support from equipment selection, installation and commissioning to maintenance. The company always insists on selecting high-quality raw materials and paying attention to product details to ensure that the equipment is durable and can also be used. According to customer needs, we provide personalized customized services to meet customers' special operating needs. In the future, the company will continue to be committed to the development of the field of machinery and equipment and provide customers with better products and services. At the same time, the company will continue to expand the international market and actively participate in international competition to achieve greater development and breakthroughs.