Analysis of Common Faults and Solutions of Hammer Crusher

 The hammer crusher is a kind of common crushing equipment. It mainly crushes materials through high-speed rotating hammer heads. It is suitable for crushing brittle and medium-hard materials, such as limestone, coal, ore, etc., because of its large reduction ratio with the advantages of uniform particle size, it is widely used in many fields such as mining, construction, metallurgy, chemical industry, energy and environmental protection. Under harsh working conditions, hammer crushers are prone to various failures. In order to ensure the normal operation and production efficiency of the equipment, it is very important to master the correct handling methods for the common faults of the hammer crusher.

Introduction to common faults of hammer crushers and their treatment methods:

Fault 1: The hammerhead is worn or damaged

Reason: The hammer head may be worn or damaged if it is used for a long time or encounters too hard materials.

Solution:

Regularly check the hammerhead and replace it in time according to the degree of wear.

Use hammerheads that meet the specifications and types, and avoid using inappropriate hammerheads.

Avoid too large or too fast the impact to reduce the wear of the hammerhead.

Fault 2: The machine is blocked or vibrating

Reason: The material that exceeds the processing capacity of the crusher enters the crushing cavity, or the too-hard material enters the crushing cavity this may cause equipment blockage or severe vibration.

Solution:

Control the feed size to ensure that the material will not be too large or too hard

Ensure that the material is dry and will not block the grate of the hammer crusher.

Regularly clean up the accumulated materials in the crushing cavity to avoid excessive accumulation and blockage.

If the equipment is clogged or vibrates, it should be stopped immediately for inspection, to clean up the clogged material, and to repair possible faults.

Fault 3: Bearing overheating

Cause: Caused by poor bearing lubrication or overload operation.

Solution:

Check the lubricating system to ensure that the lubricating oil is sufficient and flowing normally.

Check the bearings for damage or excessive wear, and replace them if necessary.

Fault 4:Excessive equipment friction and damage to parts

Cause: Insufficient lubricating oil or failure of the lubrication system may cause excessive friction of the equipment and damage to parts.

Solution:

Regularly check the lubrication system to ensure that the lubricating oil is sufficient, and replace the lubricating oil whose service life has expired in time.

Check whether the components in the lubrication system are operating normally, and repair or replace them in time if any fault is found.

Fault 5: Transmission fault

Reason: The belt, pulley and other parts of the transmission device may be worn, broken or loose, resulting in the abnormal operation of the equipment.

Solution:

Regularly check the state of the transmission device, paying special attention to the wear of belts, pulleys and other components.

Replace worn or broken transmission parts in time, and ensure that the transmission device is fastened and reliable.

Fault 6: Unbalanced equipment

Reason: The unbalanced equipment may be caused by improper installation, unstable foundation or material accumulation in the crushing cavity.

Solution:

Ensure that the equipment is properly installed and leveled, and adjusted correctly according to the operation manual.

Regularly clean the accumulated materials in the crushing cavity to avoid affecting the balance of the equipment.

Fault 7: Motor failure

Cause: Motor overload, poor electrical contact or other circuit failures may cause the motor to run abnormally or fail to start.

Solution:

Check the running state of the motor to ensure that the motor load does not exceed the rated value and avoid overload operation.

Check electrical connections to ensure good contact and repair bad contacts or other circuit failures.

Please note that when dealing with the above faults, please cut off the power first, take safety measures, and follow the maintenance guidelines in the equipment operation manual. If the fault cannot be resolved or a more in-depth diagnosis is required, please seek help from professional technicians to ensure the normal operation and safe use of the equipment. In addition, regular maintenance and inspections are also essential to reduce failures and extend equipment life.

Mali MP DIAKITE MOUNTAGA, Chairman of German Chinese Chamber of Commerce Gu Long and His Entourage Visited Vanguard Machinery To Investigate And Negotiate Projects

 

A group of 10 people, including the Member of Parliament of the Republic of Mali in West Africa, General Reporter and Minister of the Mining, Electricity and Water Affairs Committee of the Congress, Gu Long, Chairman of the German-Chinese Chamber of Commerce visited the Vanguard Machinery production plant on the rain,  to discuss cooperation matters on the afternoon of August 26, 2023. Zhang Shaofeng, mayor of Zhanjie Town, Gongyi City, and Wang Zhijie, deputy secretary of Zhanjie Town, Gongyi City attended the reception ceremony and warmly welcomed foreign guests. Afterward, they visited the company's production workshop accompanied by Wang Dongdong, deputy general manager of Vanguard Machinery, and Zang Yanjie, manager of the International Trade Department.

     

During the visit, Mr. Wang and Manager Zang introduced the application fields and production process of the company's series of products to foreign guests and gave a detailed introduction to the company's global layout and international cooperation.

 

 

After visiting the products exhibition hall and production workshop of Vanguard Machinery, the two parties had a discussion on the follow-up cooperation. He greatly appreciated it, and at the same time introduced the abundant mineral resource reserves and development direction of the Republic of Mali. Chairman Gu said: that Mali is one of the important gold-producing countries in Africa and has rich gold resources. Mali's non-metallic minerals mainly include diamond, phosphate, gypsum, Glauber's salt and limestone, etc. It is hoped that the two sides can explore new cooperation models for the Republic of Mali in the fields of mineral mining, crushing and screening through comprehensive and in-depth communication, and bring Chinese quality and Vanguard Machinery's products to Mali clients.

  

 

Vanguard Machinery is a modern mining machinery professional manufacturer integrating the production of crushing, sand making, screening and supporting equipment. Through years of unremitting efforts and continuous innovation, the people of Vanguard Machinery use modern management experience, integrate technology and research and development, and create their own brand with their unique professionalism. The company's main production equipment includes the jaw crusher, cone crusher, impact crusher, sand making machine, mobile crushing plant, etc. All kinds of equipment have complete models and superior quality and are widely used in mining, building materials, roads, bridges, coal, chemical industry, metallurgy, refractory material and other fields.

 

  

Vanguard Machinery Crawler Type Mobile Crushing Plant is in Tianjin

 Duang Duang Duang,

A crisp and powerful crushing sound,

One-stop crushing process,

On a construction site in the suburbs of Tianjin,

Vanguard Machinery Almighty Little Overlord LF250 Crawler Type Mobile Impact Crusher Plant,

is showing off.

 

This is a typical construction waste recycling plant,

The complex mixing of raw materials and the high requirements for dust and noise,

But crawler type mobile crusher is not afraid,

It is durable, stable and fuel efficient,

Capture the hearts of customers and friends,

Let's walk into the construction site together,

Get a taste of it!

Project Information:

Customer site:Tianjin

Capacity:200-240 t/h

Material: construction waste

Equipment: LF250 crawler type mobile impact crusher plant

The massive generation and accumulation of construction waste is a major problem that China will face for a long time in the future. The recycling of construction waste is in line with the sustainable development strategy advocated by the government in recent years, and its recycled products are supported by the government. We can use a complete set of crushing and screening equipment to process construction waste into recycled concrete aggregates, raw materials for new wall materials, road base materials, etc. It can realize the economic, social and ecological benefits of the recycling, reduction and harmless of construction waste.

For example:

1. Waste bricks, cement concrete:It can replace ordinary sand and gravel for road base.

2. Waste bricks and tiles:It can be made into recycled bricks, blocks, wall panels, floor tiles and other building materials products.

3. Muck:It can be used for road construction, pile foundation filling, foundation foundation, etc.

4. Steel bars:scrap steel bars, iron wires, wires and other metals can be re-processed into materials for various purposes after being returned to the furnace.

The main links in the process of Vanguard Machinery construction waste treatment:

1. Pre-sorting and environmental protection treatment before crushing

(1). Sorting link:remove large debris in raw materials, such as wood, plastic, cloth, non-ferrous metals, cables, etc.;

(2). Iron separator link:equipped with a special iron separator device, the separation of steel bars and concrete is more thorough.

(3). For sundries and soil treatment problems:slag screening, dry air separation and water flotation.

(4). For dust and sewage problems:the main equipment is closed, and the pulse bag filter, spray system, sewage treatment system is arranged nearby to ensure that the discharge and environmental protection standards are met.

(5). For the noise problem:the production line soundproof workshop seal, low-noise dust removal equipment, main crushing feeding and screening equipment adopts a unique noise reduction design process.

2. Construction waste crushing treatment process

The process flow of the construction waste mobile crushing plant can be divided into two methods: screening first and then crushing and first crushing and then screening, usually equipped with jaw crusher, impact crusher, vertical shaft impact crusher, cone crusher, vibrating feeder and circular vibrating screen can be used for medium and fine crushing of construction waste and sand making. By crushing, sorting and screening construction waste, most of the finished products can be reused as renewable resources.

1. Factory regeneration - -using stationary equipment to deal with construction waste in the factory

It can be built a large-scale construction waste production line.

It can be produced in a closed workshop to completely solve all kinds of pollution.

It can produce all kinds of recycled aggregates with zero emission.

2. In place regeneration - use mobile equipment to deal with construction waste on site

Any mobile equipment is close to the processing point to reduce transportation costs and avoid secondary pollution.

Several forms of mobile equipment are combined with each other to produce a variety of recycled aggregates.

In the case of no power supply, it can select a diesel power drive.

3. After-sales service

(1).Technical guidance:Free guidance and assistance in equipment installation and testing, technical training for customer operators, and full life cycle services to ensure stable equipment operation and production compliance.

(2).Quality Three Guarantees: The product implements three guarantees, and the warranty period is one year, excluding wearing parts.

(3).Provide maintenance and repair services for life, with complete spare parts.

All equipment accessories, complete models, reliable performance, stable and durable. It can effectively ensure that customers can obtain the required parts effectively and timely, and reduce the downtime of customers for maintenance.

Vanguard Machinery's construction waste treatment customer case:

 

What Are The Common Ways To Adjust The Discharge Port Of The Jaw Crusher?

The size of the discharge port of the jaw crusher determines the particle size of the crushed ore and the production capacity of the equipment. Therefore, in practical applications, according to the requirements of the ore and the performance of the equipment, it is necessary to select a suitable discharge opening size to meet the requirements of the equipment. The required particle size and production capacity requirements. Meanwhile, it is necessary to adjust the discharge port according to different crushing requirements, so as to meet the crushing requirements in different situations and avoid affecting the crushing efficiency and output of the crusher due to too large or too small discharge port.

Common jaw crusher discharge port adjustment methods include backing plate adjustment, wedge block adjustment and hydraulic cylinder adjustment.

1. Backing plate adjustment

By adjusting the quantity and total thickness of the backing plate to change the size of the discharge port, so as to achieve a better crushing effect. The jaw crusher's toggle plate seat is behind the adjustment seat and is usually made of wear-resistant materials. The pad is placed at the bottom of the discharge port and is fixed in the crushing cavity. Generally, a thicker backing plate can narrow the discharge port, resulting in smaller particle sizes. While a thinner backing plate can widen the discharge port, so as to obtain a larger material particle size.

The advantage of backing plate adjustment is that the operation is relatively simple. During the adjustment process, the equipment usually needs to be shut down and safe operation should be ensured to avoid potential dangers. In addition, backing plate adjustment can also be fine-tuned as needed to meet the particle size requirements for crushing tasks.

It should be noted that backing plate adjustment is a manual adjustment method that may require certain experience and skills. It is recommended to understand the operation manual and relevant safety regulations of the equipment in detail before adjusting the backing plate and follow the manufacturer's instructions to ensure correct operation and ensure personnel safety.

2. Wedge block adjustment

The wedge block adjustment device consists of two identical wedge blocks, usually made of wear-resistant materials, shaped like wedges. These two wedge blocks are located behind the toggle plate's seat in the adjustment seat, and their inclined surfaces are fitted together. By changing the relative position of the two wedge blocks, the total thickness of the wedge block pair can be changed. In this way, the position of the toggle plate will also change, which will in turn move the position of the jaw and realize the adjustment of the size of the discharge port.

This wedge block adjustment device has a large adjustment range and high precision, which can meet the requirements of different crushing tasks for the particle size of the discharge port. This adjustment method is relatively simple, has high flexibility, and can be adjusted in real-time during the production process. During adjustment, it is usually necessary to stop the machine and take necessary safety measures. In addition, regularly check the wear of the wedge block and replace or repair it as necessary to ensure the normal operation of the adjustment device and the performance of the equipment.

3. Hydraulic cylinder adjustment

Hydraulic cylinder adjustment is a common way of adjustment, which changes the position of the moving jaw by adjusting the hydraulic cylinder in the middle of the toggle plate, thereby changing the opening size of the discharge port and controlling the discharge size of the crusher.

This hydraulic cylinder adjustment features a wide adjustment range, fast response speed, and easy operation. It can also be used for iron removal and cleaning, improving the convenience of operation while reducing worker fatigue. By adjusting the oil pressure and flow in the hydraulic system, the opening size of the discharge port can be precisely controlled to meet the particle size requirements of different materials.

It should be noted that during hydraulic cylinder adjustment, it is necessary to ensure the normal operation of the hydraulic system and follow the corresponding safety operation procedures. Regularly check the sealing performance of the hydraulic cylinder and perform maintenance to ensure its reliability and stability. Compared to traditional manual or mechanical adjustment methods, this hydraulic oil cylinder discharge port adjusting device has higher manufacturing costs.

Therefore, the pad type and wedge type are currently the most commonly used methods for adjusting the discharge port of jaw crushers. These two methods are relatively simple, low cost, and to a certain extent, meet the needs of discharge port adjustment. The hydraulic cylinder adjustment device has greater flexibility and precision in functionality and performance, with stronger adaptability. However, it has a higher cost and requires advanced operation and maintenance skills. In practical application, it is necessary to comprehensively consider the selection of the appropriate discharge port adjustment method based on specific conditions (such as budget, production requirements, etc.).

AS THE PREFERRED EQUIPMENT FOR SOFT ROCK CRUSHING, WHAT ISSUES SHOULD BE PAID ATTENTION TO WHEN USING THE IMPACT CRUSHER?

The impact crusher is a commonly used equipment in mine crushing. It has the advantages of a large reduction ratio and a good particle shape of the finished product, which is widely used in mines, building materials, roads, railways and chemical industries. When using the impact crusher, it is necessary to pay attention to the correct operation method and safety regulations, follow the operation manual provided by the equipment manufacturer, and regularly check and maintain the equipment to ensure its normal operation and prolong its life.

The following are some suggested references for the correct operation of impact crushers:

1. Material control

(1). Reasonably control the feed

According to the specifications and requirements of the equipment, the feeding amount and speed should be reasonably controlled to ensure the reasonable control of the material and the stability of the feeding amount and avoid overloading the equipment or material accumulation caused by excessive feeding speed and avoid to cause the influence to the load of the impact crusher.

Try to control the uniform distribution of materials in the crushing cavity, avoid excessive concentration in a certain position, make the crushing more uniform, and improve the crushing efficiency and final product quality. The feeding speed can be controlled by adjusting the running speed and feeding volume of the feeding device, and the feeding speed can be precisely controlled by adjusting the parameters of the frequency converter to avoid equipment damage caused by overload operation or excessive feeding.

(2). Avoid excessive material entering the crushing chamber

Ensure that the size of the material meets the requirements of the equipment, and avoid excessive material entering the crushing chamber, so as not to cause material jams or equipment failure. For different types of materials, according to their characteristics and required crushing effects, pay attention to check the uniformity and humidity of the materials, and properly adjust the feeding amount and speed, which can improve the crushing effect and operating efficiency of the equipment.

2. Regularly check the wearing parts

Regularly check the wear of the impact block, liner, flat hammer and other wearing parts, and replace or repair them in time to ensure the normal working condition of the equipment. It is recommended to formulate a reasonable inspection plan according to the frequency of use of the equipment and the working environment and record the maintenance situation so that necessary maintenance measures can be taken in time.

(1). Impact block and liner:

Regularly check the wear of the impact block and liner to ensure its integrity, so as to ensure the crushing effect and the smooth passage of materials. Observe whether its surface is deformed, worn or cracked. If serious wear or cracks are found, it should be replaced or repaired in time. Keeping impact blocks and liners in good condition helps maintain crushing effectiveness and equipment stability.

(2). Flat hammer:

Check the wear degree of the flat hammer and observe whether the flat hammer is blunt, severely worn or cracked. If excessive wear is found, it needs to be replaced or repaired in time. The use of a severely worn flat hammer may result in a reduction in the crushing effect and even equipment failure.

(3). Other wearing parts:

In addition to impact blocks, liners and flat hammer, other wearing parts should be checked regularly to observe their wear and operating conditions. Replace or repair if necessary.

Motor: Regularly observe the running state, temperature and noise of the motor. If found the motor is abnormal heating, noise or vibration, it should be repaired or replaced in time.

Transmission: Check the wear and fastening of the transmission (such as belts, pulleys). Ensure the normal operation of the transmission. If serious wear, looseness or damage is found, it needs to be replaced or repaired in time.

Hydraulic system: Regularly check the oil quality, leakage and pressure of the hydraulic system. Ensure the normal operation of the hydraulic system. If the oil is found to be dirty, leaked or abnormal in pressure, it should be repaired or replaced in time.

Control system: Check the electrical components, wiring and control procedures of the control system. Ensure the normal operation of the control system. If electrical faults, loose wiring, or abnormal control procedures are found, repairs or adjustments should be made in time.

3. Regular maintenance and lubrication

Regularly check the lubrication of the equipment, keep the equipment well lubricated, and regularly add or replace lubricating grease as needed to reduce friction, reduce energy consumption, and prolong the life of the equipment. The following are common lubrication points of impact crusher in general, but the lubrication points and methods of specific equipment may be different. Customers can obtain exact lubrication point locations and suggestions according to the equipment manual or contact the manufacturer. At the same time, pay attention to regular cleaning of the lubricating parts, and ensure the selection of appropriate lubricants and lubricant additions to maintain the normal operation of the equipment and prolong the service life.

(1). Main shaft bearing: The main shaft bearing in the impact crusher is an important lubricating part, which requires regular lubrication, inspection and maintenance to ensure that the grease is always in good condition and the main shaft bearing works normally.

(2). Connecting pins of the back cover: According to the requirements of the equipment, add an appropriate amount of lubricating oil to the appropriate position of the connecting pins. The lubricating oil should be evenly distributed on the connecting pins and the surrounding friction surfaces to ensure that the connecting pins can move freely and run smoothly without abnormal friction or jamming.

4. Observe the operation status of the equipment

Observing the operating status of the equipment is the key to ensuring the normal operation of the impact crusher and discovering potential problems in time. If you notice that the equipment is operating abnormally, you should stop it immediately for inspection and maintenance. The following are some equipment indicators that need to be observed.

(1). Speed: Observe whether the speed of the crusher meets the normal range. Unusually low or high speeds may indicate a malfunction or improper operation of the equipment.

(2). Vibration: Pay attention to observing the vibration of the equipment. Normal slight vibrations are normal, but excessive vibrations may indicate problems with the equipment such as imbalance, wear or looseness.

(3). Noise: Pay attention to the noise level generated by the equipment. Sudden increases in noise or unusual noises may indicate that equipment components are worn, damaged, or in need of lubrication.

(4). Temperature: Regularly check the temperature of each part of the equipment. If a spot is unusually hot, it could indicate friction, poor lubrication, or other problems.

(5). Feed and discharge conditions: Observe the smoothness and uniformity of material feed and discharge. If a blockage, poor flow, or unevenness occurs, stop the machine immediately to check the cause.

(6). Current and voltage: Regularly monitor the current and voltage of the equipment to ensure that it is within the normal working range. Unusual current or voltage fluctuations may indicate an electrical fault or power supply problem.

The above are some suggestions for the use and maintenance of the impact crusher. In actual operation, it needs to be carried out according to the specific model of the equipment and the operation manual provided by the manufacturer. Before operating the impact crusher, be sure to master the operation guide of the equipment, and operate in strict accordance with relevant safety standards and regulations.

If you encounter problems or need more technical support, you can contact Vanguard Machinery directly, and we can provide you with professional suggestions and solutions.

Export and Blowing the Charge, Vanguard Machinery's Diversified Products are Striding Overseas

 In recent years, Zhengzhou Vanguard Machinery Tech Co., Ltd. has steadily increased the pace of overseas expansion. With the continuous improvement and deepening of the company's design optimization, manufacturing process, and quality control of various products, the competitiveness of Vanguard Machinery's products in overseas markets significantly improved, and won good sales and reputation in key markets and benchmark markets, demonstrating its strong strength as a representative of China's intelligent manufacturing.

Recently, the employees in the production plant of Vanguard Machinery are not afraid of the high temperature, and they are fully fired, working overtime to meet the deadline, and have successively completed the production and delivery of equipment for the customers of Russian, Mexican, Philippine, Indonesian and Saudi Abria. Each process is in order Each link strives to achieve high efficiency and high quality.

Vanguard Machinery dispatching three mobile crushing plants in Russia

Vanguard Machinery inspects and delivers a stationary production line and sent to Saudi Arabia

Vanguard Machinery sent a 150 t/h stationary production line to the Philippines

Vanguard Machinery sent an 80 t/h stationary production line to Kazakhstan

Vanguard Machinery sent a 120 t/h stationary production line to Indonesia

Vanguard Machinery sent a 110 t/h mobile crushing plant to Mexico

In 2023, Vanguard Machinery will use the concept of localization to accelerate the transformation of overseas business models, deepen the global market end-to-end, continue to change business models, continuously improve the strategic layout, and continue to achieve breakthroughs in the market. Vanguard Machinery will not forget the original intention and forge ahead go forward, and strive to persist in polishing the golden brand of China's intelligent manufacturing in the world.