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Analysis of Causes for Failure of High-pressure Raymond Mill Gear Transmission

In the process of high-pressure Raymond mill operation, gear transmission failure is one of the more common failures. Once Raymond Mill gear transmission fails, it will seriously affect the smooth operation of the milling operation and delay the efficient operation of the entire milling production line. So. What are the causes of the failure of the high pressure The Standard Operating Theory Of Raymond Mill gear drive?
1. Due to the special nature of the high-pressure Raymond mill working environment, the working environment of the gear transmission is poor when the milling operation is carried out, and the gear is seriously polluted due to the severe impact of the dust particles. Or if the gear transmission parts are not added in time, and the lubricating oil is seriously polluted, it will cause the high-pressure Raymond Grinding gear to fail.
2. After the gear transmission has been operated for a period of time, the axis of the pinion and the axis of the raymond mill classification drum may become non-parallel, resulting in localized contact of the gear mesh. If the gear is uneven across the entire tooth width, it is very easy to cause bending and torsional deformation of the gear shaft. In addition, if the material of the gear transmission material is not uniform, there are slag inclusions, pores, and hard particles, etc., and the local shear stress of the surface layer or subsurface layer is too large, resulting in a broken tooth phenomenon. The
3. There is stress concentration on the high pressure Raymond milled gear. When the gear tooth top enters the meshing state, the surface layer forms the original crack under the effect of excessive equivalent contact shear stress. During the operation of the gear, the high-pressure oil wave generated by the contact pressure enters the crack at a very high speed and generates a strong fluid impact on the crack wall; at the same time, the surface of the gear sub-surface can close the crack opening and further increase the oil pressure in the crack. It rises and forces the crack to expand in the depth direction and in the direction of the tooth surface. The material falls off from the tooth surface and forms pitting.
4, in the transmission gear single tooth to bear the load to greatly extend the time, which is caused by excessive wear of the gear is an important reason. The reduction in the degree of coincidence will inevitably lead to an increase in the backlash of the gear, so that some impurities and floating materials and dust in the air more easily enter the meshing surface of the gear pair, causing the occurrence of abrasive wear.

Many factors affecting the efficiency of the sand making machine and abnormal wear

As we all know, the Sand making machine is the core equipment for the production of sand made from river pebbles and artificially controlled sand. It has a high-performance crushing and sand making production, which can meet the demand for aggregates for sand and gravel, and has outstanding features in construction and municipal construction. Performance. Sand production line in the output, quality are to meet the requirements of the construction of the project, but also can adapt to the requirements of mechanized construction.
But usually the equipment is subjected to wind, sun, rain, and other external factors, or its own operating problems, etc. will make the sand making machine equipment less efficient. The key components of the sand making machine usually include bearings, impact blocks (also known as plate hammer), counterattack Liners, shell liners, and rotor body guards. How to make these components work best and prolong their service life requires that we not only operate according to the rules and regulations but also know how to maintain and replace them.
First of all, we first understand the bearing of the sand making machine. The bearing is mainly used to fix the hammer and the plate to hammer or impact the plate, so that it can be well matched with the motor. In addition, the bearing is also a necessary component since the crusher often uses a rotating device to connect with the driver. The bearing lubrication technology used in Sand making machine mostly uses lubricants and lubricating oils, which can effectively reduce the wear between machines and increase the service life of the equipment.
Second, the sanding machine wear solution: impact block (plate hammer) is the most serious wear in the sand making machine, then what are the factors that affect the plate hammer wear? In addition to normal wear in production, we learned that the processing capacity of the sand making machine also has a certain influence on the wear of the plate hammer. When the processing capacity increases, the product particle size will become coarser, the crushing ratio will decrease, and the unit pure abrasion of the plate hammer will also decrease. Similarly, changing the size of the discharge gap can also change the thickness of the product particle size to some extent. There is also a certain influence on the hammer wear.
In addition to the above, after the new equipment is put into production, necessary inspections every day are indispensable. The same is true for the sand making machine. After each shift, it is necessary to conduct a comprehensive inspection. In particular, bearing seals, counter-attack linings, and wear and seal of the liner must all be inspected in an all-round manner, and some necessary for the gap between the rotor of the sand making machine and the counterattack liner. The adjustment can also effectively ease the wear of various wearing parts.

The stability of the sand production line from which to reflect

The stability of the Sand making machine is a concern for users. Only when the stability is improved can the production cost be reduced during the entire production line because the failure will not affect the production efficiency. To achieve the high stability of the sand production line requires it to meet various requirements, then from which aspects to improve the stability of the sand production line?
First, parts and materials
The sand production lines produced by different manufacturers will have a great difference in the use of materials and components. The most obvious difference is the wear resistance of wearing parts. Many small manufacturers do not achieve higher wear resistance in the use of wearing parts of sand making equipment. During the use of such equipment, parts and components are easily damaged. In the use of the products, some instability will occur. . For example, rotor blades, protection blocks, and hammerheads that are in direct contact with stone materials, such as those that are subject to wear, are required to improve the stability of the sand production line. First, the wear resistance of the materials and components is increased, and the wear resistance is improved. In order to reduce the frequency of replacement of parts and improve the stability of the sand production line.
Second, production and processing technology
The equipment for the entire Sand making machine must have some welding and installation nodes in the middle, and each welding node must have high-quality processing technology. Because the sand making equipment inevitably has vibration in the work, if it is not satisfied with the processing technology, in the normal production operation, the equipment will have abnormal vibration and even the failure of welding points, which will affect the production schedule. Therefore, when the user selects the sand production line, it also needs to pay attention to the processing technology of the various sand production equipment.
Third, the design concept
All production equipments are required by the times, and naturally, under the different needs of the times, there should be corresponding improvements in design. However, some small sand making equipment manufacturers, due to limited technology, there is no more market experience, or the equipment designed is put into the market without actually testing, such equipment in use, there is no stability at all. When choosing a sand production line, users must choose a strong brand manufacturer, such as Zhengsheng Heavy Industry, and only a reliable company can have a more powerful design team and higher design capability. In order to have a higher stability.
Fourth, systematic
Since it is a sand production line, it is necessary to achieve the convergence between multiple devices in the environment in production. Good system connection performance ensures smooth operation of the entire production line. But there are also some manufacturers, because there is no systematic connection between equipment and equipment, and even some manufacturers themselves do not own the main product, which is to assemble between different manufacturers, such a sand production line in use, it is difficult to guarantee The stability of the equipment. The high stability of the sand production line, between the various devices, there is a more systematic advantage of convergence, so that we can better optimize the work of the various sand equipment, improve equipment stability, but also improve the entire sand production line The efficiency of work.

Buy Raymond Mill used to pay attention to what issues

There are a lot of second-hand things in life, such as used cars, used rice cookers, used refrigerators, and so on. So, can used Raymond Mill compare with used cars?
As a vehicle trading market, it is not difficult for us to find a brightly-used second-hand car in front of the booth, whether it is new or old, or whether there has been an accident. As professionals, we can still judge if our economy is not very abundant. We can consider second-hand cars within the scope of purchase, because he has a long life cycle and generally has a useful life of less than 15. Relatively speaking, he is relatively economical, has a relatively low discount rate, and has a good spare part and a large selection.
The second-hand raymond mill is a far cry from the car. The so-called used Raymond Mill is the equipment used by others for a period of time, or the equipment that was refurbished, or the product that was closed down by the manufacturer, and many manufacturers are simply greedy for cheap , To purchase second-hand mine grinders online or locally, Raymond Mill’s working principle is that the Raymond Mill’s main machine drives the center shaft through the transmission during the working process, and the top of the shaft is connected with Raymond Mill. The frame is equipped with a roller device and forms a swinging point. The roller generates an autobiographical effect due to friction. At the same time, the roller not only revolves around the center, but also orbits around the grinding ring. A blade system is installed at the lower end of the roller under the plum frame. In the process of simultaneous rotation with the grinding roller, the material is fed between the grinding ring of the grinding roller, thus forming a dunnage layer, which is then subjected to the centrifugal action generated by the rotation of the grinding roller to crush the material to achieve the purpose of milling.
However, whether or not we know Raymond Mill has used a period of time, the grinding roller and the grinding ring need to be replaced regularly. Most of Raymond Mill’s accessories and components also need regular maintenance. In terms of service life, Raymond Mill’s life cycle is roughly two to three years, so as to produce more output and maximize the interests of investors.

What are the wearing parts of the impact type sand making machine?

Regarding the impact type sand making machine, the users are most concerned with several major issues that are nothing more than the stability of the Sand making machine, the sand making machine price, the manufacturer’s after-sale problem solving, and the return on investment. However, many people often ignore the problem of wearing parts of the sand making machine. In fact, the wearing condition and service life of the wearing parts of the sand making machine directly affect the efficiency of the entire equipment and even the entire sand making production line. Many people will ask how important the wearing parts are. What are the wearing parts of the impact sand making machine?
The wearing parts of the impact type sand making machine are basically in direct contact with the broken materials or the finished products. The sand making machine has been operated for a long time. After the materials touch and squeeze each other, the contact surface is easily damaged.
The consumable parts of the impact type sand making machine mainly include: rotor cutter head, protection block, annular liner, sand bed, up and down flow channel plate, and material cone.
Zhengsheng Heavy Industry Co., Ltd. reminds that if any component is damaged, repair it or replace it in time. It must not be regarded as lucky. It is believed that it can be used to make use of it. This will not only result in incomplete fragmentation of the material, but also will not achieve satisfactory grain shape. Sand production rate and production efficiency.
All the wearing parts of Zhengsheng Heavy Industry Impact Sand Making Machine are made of special wear-resistant materials, and both are thickened and the service life is more than doubled, which greatly reduces the user’s maintenance costs and increases profit margins.

Raymond Mill safety precautions

Some of our raymond mill operators still have a lot of dangerous habits when using machines. Today, Great Wall Heavy Industries has summarized the safety operations of some mill operators for the majority of mill operators. We hope that everyone will correct the situation and add to it.
1, check the belt, screws and the lubrication of the various parts before starting, you should remove the debris around the machine.
2. Place the raw material to be ground into the hopper and adjust the gap between the two grinding rolls. During the operation, the two ends of the grinding roll should be kept tight and the grinding should not be too tight. The line speed should not be too high.
3, when the milling operation, prevent the processing materials cut off. Before shutting down, the grinding roller must be detached to prevent direct contact between the two rollers. Always pay attention to the stock of the cylinder.
4, Raymond Mill processing materials must be screened. If the flat screen is blocked, gently tap it to avoid excessive force.
5, do not roll the roller too tight, grinding teeth can not be used too blunt to avoid excessive temperature. If a fire or explosion occurs, loosen the raymond mill roll immediately so that the abrasive flows down to extinguish the flame.
The above is the explanation of Great Wall Heavy Industry’s attention to the operation of Raymond Mill. It is hoped that it can provide some reference suggestions for the pre-post training of the Raymond Mill operators of various enterprises, and also reminds the milling companies again, whether it is for the milling machine. The operator or the crusher operator must pay attention to the pre-service training of the operator.

Construction waste treatment equipment Harmless treatment Construction waste

According to statistics, in most countries in the world, the sum of dismantling garbage and building construction waste of old buildings generally accounts for 20%-30% of the total solid waste, of which the amount of construction waste is less than half that of old construction garbage. At present, the amount of construction waste in China has accounted for 30%-40% of the total amount of urban waste, of which building construction waste accounts for 5%-10% of the total weight of urban waste, and annual construction waste amounted to 40 million tons, most of them. Construction waste is transported to the suburbs for storage or simply landfills without treatment. Most of the construction waste is solid waste, which mainly comes from the three ring cutting festivals in construction activities: construction (production) of the building, use and maintenance (use) of the building, and demolition (rejection) of the building. The construction waste generated during the construction process mainly consists of excavated earthwork, broken bricks, concrete, mortar, pile heads, and packaging materials. The construction waste crusher during the construction process mainly includes renovation materials, plastics, asphalt, rubber, etc. Dismantling wastes such as waste concrete, waste bricks, waste tiles, waste steel bars, wood, broken glass, plastic products, etc. In order to ensure people’s health, protect the environment, save energy, and make the construction wastes resource-recycling and harmless, SBM Mining Machinery Co., Ltd. developed and produced construction waste treatment equipment, including construction waste crushing stations and construction waste brick making equipment. Currently, it has been applied in first-tier cities in China and is favored by customers.
The production line of construction waste treatment equipment produced by SBM Mining Machinery Co., Ltd. is a production line designed according to market demand. The production line integrates feeding, crushing, screening, conveying, and brick making. The construction waste generated from the demolition of houses will be recycled and aggregated after being broken at the construction waste crusher, and will be used as a retaining wall for retaining walls. It will be equipped with fly ash, cement, etc., and will be made into road bricks, grass-planting bricks and permeable bricks through the brick making machine. , hydraulic bricks, colorful tile and other 7 categories, including recycled fine aggregate, medium aggregate, coarse aggregate, small standard brick, guide blind brick, square brick, porous wall brick, single row of hole wall brick, Maple Leaf Bricks, Spanish bricks, Dutch bricks, Hollow bricks, Semi-circular roadsides, Square roadsides, Single-hole grass-planting bricks, Well-shaped grass-planting bricks, Single-hole interlocking hydraulic bricks, Tooth-shaped grass-planting bricks, Four-hole grass-planting bricks, Eight character grass bricks and more than 20 varieties of environmental protection building materials. The overall layout of the production line is good and the process route is smooth. Good environmental protection: Low noise, less dust, less pollution, suitable for production operations in the demolition and reconstruction area of ​​Chengzhong Village. Good economical performance: The construction garbage brick machine has the advantages of small area, no fixed site, and low investment in land construction costs.

Ultra-fine powder mill has been greatly developed in the environmental protection industry

In recent years, with the increasing demand for industrial milling, China’s powder technology has achieved rapid development. The research and development of powder production, application and equipment manufacturing has progressed rapidly. New equipment and new products have appeared in the market. . With the rapid development of the powder industry, as an industrial ultrafine mill powder equipment manufacturing enterprise, industrial milling equipment has also been further improved and developed.
As we all know, the annual loss of acid rain caused by the emission of SO2 in the air amounts to hundreds of billions, and what kind of milling process is used becomes the key to the success of the desulfurization project. In many milling processes, SBM ultra fine powder is recommended. Mills and vertical mills, for limestone and gypsum desulphurization, are specially designed for power plant desulphurization. The annual fly ash emissions of power plants are also in the hundreds of millions of tons. As the industrial waste discharged from power plants, the treatment has become a major headache for many companies. After research, because of its special physical properties, it can be widely used in the environmental protection industry after milling. Similarly, slag, water slag, steel slag and other industrial solid waste have also been reasonably recycled. After processing and processing the Ultrafine mill, these wastes have not only been dealt with in terms of environmental protection, but also have a more reasonable application in the comprehensive utilization of resources.

New sand making machine equipment promotes comprehensive utilization of gold slag recycling

The application of sand making machine in a variety of ore beneficiation production lines and the comprehensive utilization of tailings processing is very extensive. The new sand making machine and sandblasting machine produced by SBM are advanced, highly efficient and environmentally friendly. SBM impact sand making equipment can effectively promote the comprehensive utilization of gold slag recycling.
SBM impact type sand making machine can effectively crush finely crushed gold-containing waste slag and enter the tailings recycling machine for tailings recovery. The sand making machine equipment can also promote the processing of gold-containing waste slag into cement clinker. The impact type sand making equipment is used to crush and crush large pieces of gold-containing waste slag, and grind the slag together with clinker and gypsum; the slag is separately ground and the gold-containing slag is mixed with the fine powder of clinker and gypsum. Into cement; Gold slag is pre-pulverized separately and ground together with clinker and gypsum. SBM impact sand machine has a large amount of processing, a wide range of applications, high crushing efficiency, and very energy-saving and environmental protection. SBM’s new impact sand making machine is simple in structure, low in cost and stable in operation. High-efficiency and energy-saving, material lining inside the impeller and vortex crushing cavity greatly reduces wear part costs and maintenance workload. The sand making machine is very economical and environmental friendly and is the assistant to the comprehensive treatment of the rational use of tailings in the beneficiation plant.
In addition. SBM impact sand making equipment can also effectively promote the processing of gold-containing waste slag into raw materials for cast stone, glass-ceramics, fertilizer, enamel, and ceramics.

What are the parts of ultrafine mill production?

The output of ultrafine mill determines the growth of the production efficiency of the enterprise. Therefore, the user will try every means to solve the problem of low output. As many exploration visits, it is better to look at Shanghai SBM Industrial Technology Group if it analyzes the ultrafine mill. Which parts of the production are related?
In fact, when many users use ultrafine pulverizers, there are mass production conditions such as low production, low pass rates, and poor quality. With the large parts of the ultrafine mill, you can easily solve the problem you are worried about. We have to say one of the components related to the production of the ultrafine mill, the separator.
The classifier is an important extension equipment in the closed circuit production system of the ultrafine mill. The function of the classifier is to separate the fine powder after grinding from the qualified product and return the coarse powder to the grinding mill for re-grinding. Ultrafine mill fineness requirements while improving the grinding efficiency of the mill. However, separators need to cooperate with the various systems of the ultrafine mill to ensure the grinding quality of the mill and the output of the table.
In the production process of ultrafine mill in our country, two kinds of technical parameters, ie “powder selection efficiency” and “circulation load rate”, are generally used to control the working conditions of the separators, which in turn affect the efficiency of ultrafine mills. And Taiwan production. “Powder selection efficiency” refers to the ratio of the fine powder contained in the finished product to the fine powder in the powder feeder, and the “circulation load rate” refers to the ratio of coarse powder to fine powder in the separator.
The comprehensive performance of the separator depends on the efficiency of the separation process, and the high efficiency of the separation means that the separator can select more fine powders from the milled materials, while the mill production of the closed-circuit grinding system is based on the classifier. The amount of fine powder chosen represents it. The efficiency of the powder selection directly affects the output of the mill. Too low will reduce the output of the ultrafine mill. Too high will reduce the fineness of the ultrafine mill. Therefore, we have to choose an ideal powder separation efficiency as an indicator.
After understanding the relationship between separators and output, under normal circumstances, the output of ultrafine mills is not high. Apart from the problems of wearing parts, motors, and material humidity, please do not forget to use ultrafine The powder mill machine has a general inspection.