In recent years, the new dry-line infrastructure investment has been rising, affecting the economic benefits after the project. There are many reasons for the gradual increase in funding, such as capital contribution, construction engineering, equipment costs, and cement equipment installations. However, the status of planning factors that result in the addition of funding cannot be ignored. In the planning process of the cement plant, based on many inductive elements such as materials, sites, funds, etc., the new dry-line equipment investment was reduced from the planning point of view, and the trapezium mill was determined to be the medium-speed T-type. Mill process technology skills Cement system equipment is very important.
Grinding is an important skill process for cement production. It not only determines the unit power consumption of cement production, but also has an important impact on cement function. For a long time, the trapezium mill process skill cement clinker grinding is carried out in a ball mill through the medium-speed T-type grinding price. The ball mill has strong adaptability to materials and is easy to adjust the fineness of the milled products; the equipment is simple in structure, reliable in operation, convenient in handling and so on. However, the effective utilization of energy is low, only 2% to 5%. In the past ten years, the cement grinding skills have been greatly developed. The traditional mill has been improved, and high-efficiency powder selection equipment has been adopted. Vertical mill and kneading mill have also been used one after another, which greatly reduces the energy consumption of grinding and improves the grinding power of the trapezium mill process. .
The rationality of the placement of the powder chamber in the trapezium mill is very important. The material is sorted by inertia force, gravity and vortex flow in the powder selection chamber to make the coarse and fine particles fully separated. The spatial scale selection is more reasonable, which makes the powder selection power significantly improved and the energy consumption is reduced.
The rotor system in the process of the trapezium mill is easy to condition. Because the motor speed of the powder separator and the number and angle of the small blades and the auxiliary blades are adjustable, the system parameters can be matched to reach the aspiration state, and the grain size of the product is easy to be adjusted.
Because of the improvement in grinding skills, it also has a certain impact on the characteristics of cement particles. Therefore, it is necessary to study the process of dissecting the process of trapezium mill and the change of the role of medium-speed T-type grinding, so that the improvement of skill equipment and the optimization of operating parameters can reach energy saving, consumption reduction and cement function improvement. Inductive effect.
The slagging function of Raymond Mill means that Raymond Mill can discharge harder slag out of the grinding chamber, which can improve the quality of the powder or extract the finished product.
Raymond Mill’s slagging function is mainly used in the following industries:
First, the separation of hard impurities, at this time the dregs are waste products, if ground into the powder, it will increase the impurities of the powder, reducing the purity and quality of the powder. For example, in the charcoal industry, in the process of anaerobic firing, charcoal will use different wood materials, which will be doped with impurities such as earth, quartz, pebbles and so on. Charcoal or hemp charcoal is mainly used for mosquito coils or gunpowder, fireworks, etc., burning is their ultimate value, but if there are impurities, especially fireworks or wires, it will greatly reduce its burning performance. This is the function of slagging. Raymond mill’s slagging can remove limited stones and impurities out of the grinding chamber, improving the purity of the charcoal powder.
Second, aluminum ash and aluminum slag separation, zinc ash and zinc slag separation, copper ash and copper slag separation, these collectively referred to as smelting waste slag there is a large amount of metal, but these metals can not be directly smelted, there are a lot of soil and sand, according to different tastes, These wastes have different values. The slagging effect of Raymond mill is mainly to discharge the metal in the waste slag out of the grinding chamber, and the soil and sand are ground into powder to achieve the separation effect. The slagging function is highly efficient, and the separation is clean, and the separated metal can be directly smelted.
When the mobile crushing station is used, the role of the lubricating oil is mainly to reduce the wear, but its effect is not only the case. When the lubricating oil is missing, it will have a great impact on the equipment, mainly in four aspects: Temperature, speed, load and impact load changes, here is a detailed introduction to these four aspects.
First, temperature changes
One of the functions of lubricating oil for moving crushing stations is to control the temperature and prevent the high temperature deformation of its parts. Therefore, the lack of lubricating oil will cause changes in its temperature, and the characteristics of lubricating oil itself will change with temperature. It will change. Generally speaking, if the temperature is too low, it will become thicker. If the temperature is too high, it will become thinner. In this case, when the lubricant is used, it should be selected according to different temperatures. To choose a lubricant with a high consistency, if the weather is cold, a lubricant with a weak consistency is needed to ensure its effect on the Mobile Cone Crusher;
Second, the speed of change
For this station, the lack of lubricating oil will make the wear between the parts not relieved. If the wear is serious, it will affect the speed of its operation, and in the process of production, the faster the moving crushing station rotates, then the roller The more difficult it is to squeeze in the lubricant, which will result in poor lubrication, and the lubricant tends to agglomerate and thicken at high speeds. Therefore, low-viscosity lubricants are required for high-speed operation and high-viscosity lubricants for low speeds;
Third, the load changes
The use of high-viscosity lubricants in Construction Waste Crusher can prevent collision friction between equipment components. Low-viscosity lubricants are required if the equipment is lightly loaded, and high-viscosity lubricants are required for high loads.
Fourth, the impact of changes in impact
When the mobile crushing station is in use, its engine will generate a law of power. At this time, the equipment needs a thick lubricating oil containing an extrusion additive to prevent the friction caused by the oil film from rupturing;
This paper mainly introduces the four major consequences of the lack of lubricating oil in the mobile crushing station, mainly the changes in temperature, speed, load and impact load, and analyzes the problem of what kind of lubricating oil to use in different situations. It is said that the lubricating oil plays a great role, so the choice must be in accordance with the production requirements.
Vertical mill grinding machine is widely used in the production of non-metallic minerals, and is also a common processing clay equipment. Customers who grind 200 mesh clay powder can recommend the processing clay equipment produced by the manufacturer. SBM heavy machine has rich experience in the clay field, providing clay customers with more professional clay powder grinding machine to meet customers. The production demand of 200 mesh clay powder, and the price of SBM heavy machine clay Vertical Roller Mill is reasonable, the working principle is more scientific, and the customer’s support is obtained.
As a professional manufacturer of processing clay equipment, SBM Heavy Machine has always created benefits for each powder project with excellent quality and perfect after-sales service. SBM heavy machine team has rich experience in machining and manufacturing, and also has more perfect after-sales service. The system has established offices and service centers in many regions to create significant market benefits for each customer in a faster, more efficient and more desirable way. So, what kind of grinding equipment is used for processing clay powder? SBM heavy machine is recommended to use the new vertical grinding mill equipment to achieve greater capacity. SBM heavy machine is a professional mill manufacturer, and it is believed that it will contribute more to the further development of the clay powder market.
Vertical mill grinding machine is an excellent equipment for SBM heavy machine to be upgraded on the basis of traditional mill. The performance index is greatly improved, and the capacity of the equipment can be increased by more than 40%, and the unit power consumption cost can be saved by 30%. With new plum blossom frame and pendulum grinding roller device, the design structure is more reasonable. The dust collector of the mill is equipped with a pulse dust collector, and the dust collection efficiency can reach 9%. It should be said that it is an ideal equipment for clay powder processing.
As the excellent equipment of SBM heavy machine, what is the price of such clay vertical mill? In fact, as a professional manufacturer, SBM can customize the selection configuration scheme for customers and formulate more reasonable clay vertical grinding. The price of powder machine helps each enterprise to increase production and income, and achieve greater profits and value.
The cone crusher is a crushing device commonly used in production. Spindle breaks are a common type of failure during production runs. Frequent breaks in the spindle not only affect normal production, but also aggravate routine maintenance and overhaul work. For this fault, this paper analyzes the cause of the fault and finds a solution. A detailed analysis of the causes of the main shaft fracture and the solutions are as follows.
First, the reason for the broken shaft
(1) The strength of the main shaft is weak: the static fit between the main shaft and the broken vertebral body causes stress concentration on the main shaft section, which significantly reduces the fatigue strength of the main shaft material. The main shaft gradually cracks during the crushing process of the crusher. The bending stress at the stress concentration of the spindle is broken beyond the strength of the material.
(2) Overload operation: Due to insufficient spring pressure, the upper support sleeve of the crusher often jumps when overloaded, resulting in excessive product size. Therefore, the operator often adopts the method of recompressing the safety spring to increase the crushing force, thereby increasing the force of the main shaft, so that the main shaft is subjected to excessive force.
(3) Frequent iron and iron: In order to obtain the qualified product size, the crushing workshop often reduces the number of shots, causing the number of times of crushing the chamber to pass iron or iron, which causes the bending stress in the dangerous section of the spindle to reach a certain value.
Second, the solution
For the above reasons, the analysis of the spring pressure is not enough. From the design considerations, the number of irons is increased due to the reduction of the discharge port. It can be solved by operation, that is, the iron check work is strengthened; if the fatigue strength is insufficient, the following measures can be taken to improve the resistance of the spindle. Fatigue strength:
(1) Increasing the load-reducing groove will reduce the press-fit; make a circle of load-reducing grooves at the lower edge of the body of the static pressure-bonding part between the main shaft and the Crusher Machine.
(2) Improve the rounded shape of the broken shaft part, and roll the static pressure part of the main shaft to increase the surface finish and surface hardness.
(3) Reduce the interference of the static pressure of the main shaft and reduce the interference between the main shaft and the cone body. In order to ensure that the spindle and the body do not loose during operation, a certain amount of interference is required. The greater the interference, the stronger the stress concentration, but the more the stress concentration decreases, the more severe the fatigue strength of the spindle is reduced.
(4) Increase the transition angle between the main shaft fitting portion and the cone to reduce the stress concentration factor.
(5) According to the newly designed spring pressure, the shaft of the shaft is designed correspondingly, and the diameter of the shaft is generally increased.
After more than 20 years of development, SBM Raymond mill Factory has accumulated rich experience and technology in the Raymond mill industry. It has won unanimous praise in the industry for its quality, and its products are sold with good reputation. To and from home and abroad. Through the dynamic analysis and simulation analysis of the hydraulic lifting roller pressing system and the grinding system of the vertical Raymond mill, the factors affecting the performance of the vertical Raymond mill are obtained, which provides the theory for the optimization of the vertical Raymond mill. According to the above, the vertical working stability of the vertical Raymond mill is improved, the wear amount is reduced, and the cost is reduced and the energy consumption is reduced. Now Raymond mill has developed to a fairly advanced level, a variety of high-pressure mills, pendulum mills, gradient mills, ultra-fine mills, etc., used in a variety of fields, continuous refinement, more professional.
The above analysis shows that the grinding force and grinding area of the vertical Raymond mill are constant compared to the pendulum Raymond mill, which determines that the output of the vertical mill is higher than that of the pendulum Raymond mill. The structure analysis of the main machine of the vertical mill shows that the grinding roller rotates around the central axis under the action of the centrifugal force F2, and also swings parallel to the longitudinal axis, so that the grinding roller presses the grinding ring outward in parallel, thereby ensuring the grinding roller and The grinding ring is in contact with the largest face. SBM Heavy Industry Raymond Machine Factory combines its own professional understanding of milling equipment to summarize the following. I hope everyone has a deeper understanding of Raymond mill. Now with the wide use of Raymond mills, it will inevitably lead to its rapid replacement, because the use of large quantities, the machine will be worn out, to a certain extent, it needs to be replaced.
When it comes to the users of the river pebble sand making machine, it is a strange problem to replace the wearing parts. It is very troublesome to replace the parts when replacing the parts. Many manufacturers come to see the equipment production efficiency. Very satisfied is not satisfied with this replacement parts, and later through the communication with the customer can not design a more convenient replacement parts of the machine.
After a thorough investigation and experiment, we have developed a one-button hydraulic unpacking river pebble sand making machine. This machine not only replaces the accessories, but also is more suitable for preventing material blockage.
So simple to say about the superior aspects of the open-box river pebble sand making machine, our users are a constant source of inquiries, how is our river pebble sand making machine out of the box, open box type river pebble sand making machine is convenient Where is the new type of river pebble sand making machine in the price changes, there are many users have already placed orders to our company, our company is now working day and night to work overtime for our users to open a new box The river pebble sand making machine reduces the burden for users in order to allow users to put into production more quickly.
For the mill, daily maintenance and maintenance is essential. We generally use Upgraded version of Raymond Mill for processing marble powder. Raymond mill should not be very strange. Raymond mill is traditional. Milling equipment, but still there are still many people using it. If you choose to shop at SBM, it is worth mentioning that the choice of mill type is related to the customer’s grinding requirements. The information such as fineness and productivity is an important reference factor for the type of mill. For example, a customer wants to grind 200 mesh marble powder. SBM’s new Raymond mill has higher capacity, lower energy consumption and more scientific price, which can meet the production needs of 200 mesh customers.
Raymond mill maintenance method
1. When the Raymond mill is in operation, it must be guarded by a special person. In the course of use, this caregiver must have relevant information and operational skills. To understand the principle and performance of the Raymond mill, familiar with the operating procedures.
2, in order to make the mill normal, the equipment “equipment maintenance and safety operation system” should be established to ensure the long-term safe operation of the mill, as well as necessary maintenance tools and grease and corresponding accessories.
3, regular maintenance and maintenance, trapezium mill after a period of use, should be carried out a comprehensive overhaul, especially those parts of vulnerable parts, grinding rolls, grinding rings, blades and other accessories to strengthen maintenance management.
4. When the grinding roller device is used for more than 500 hours to replace the grinding roller, the rolling bearings in the roller sleeve must be cleaned, and the damaged parts should be replaced in time.
The above is the summary of the small series, and there are many more, we still need to do the maintenance and repair work of Raymond mill in the usual time, in order to extend the service life of the equipment and obtain greater production efficiency. The operator of the Raymond mill for processing marble powder needs to keep in mind the above maintenance rules, do the usual maintenance work, promote the normal operation of the mill, and produce more benefits.
Vertical mill grinding machine is widely used in the production of non-metallic minerals, and is also a common processing clay equipment. Customers who grind 200 mesh clay powder can recommend the processing clay equipment produced by any manufacturer. SBM has rich experience in the production of clay, and provides clay customers with more professional clay powder grinding machine to meet customers’ 200 mesh. The production demand of clay powder, and the price of SBM clay vertical roller mill is reasonable, the working principle is more scientific, and it is supported by customers.
As a professional manufacturer of processing clay equipment, SBM has always created benefits for each powder project with excellent quality and perfect after-sales service. SBM team has rich experience in machining and manufacturing, and also has a more perfect after-sales service system. The region has established offices and service centers to create significant market benefits for each customer in a faster, more efficient and more desirable way. So, what kind of grinding equipment is used to process clay powder? SBM recommends using a new vertical mill to achieve greater capacity. SBM is a professional mill manufacturer and believes it will contribute more to the further development of the clay powder market.
The Grinding Mill is an excellent equipment for SBM to be upgraded on the basis of the traditional mill. The performance index is greatly improved, and the production capacity of the equipment can be increased by more than 40%, and the unit power consumption cost can be saved by 30%. The new plum blossom frame and the pendulum grinding roller device have more reasonable design structure. The dust collector of the mill is equipped with a pulse dust collector, and the dust collection efficiency can reach 9%. It should be said that it is an ideal equipment for clay powder processing.
As the excellent equipment of SBM, what is the price of such a clay vertical mill? In fact, as a professional manufacturer, SBM can customize the selection configuration scheme for customers and formulate a more reasonable price of clay vertical mill. Help each enterprise to increase production and income, and achieve greater profits and value.
What are the reasons that affect the failure of Raymond mill gears?
First, the special working environment of Raymond mill, in the production process, the gear transmission environment is relatively harsh, after being affected by dust particles, it is easy to cause serious gear pollution. And if the lubricating oil in the gear transmission part is not added in time, it is easy to cause the gear transmission of the equipment to fail.
Second, after the gear transmission is operated for a period of time, the axes of the pinion and the classifying drum are not parallel, resulting in local engagement of the gears. Moreover, the gear is unevenly stressed during the whole production process, which easily causes the gear shaft to bend. In addition, the gear transmission material is not uniform, and particles, entrainments, and the like are apt to exist, and the surface stress is excessively large, causing a broken tooth.
Third, there is stress on the Raymond mill gear. When the gear enters the meshing, the surface is prone to crack under the excessive stress. Moreover, during the operation of the gear, the high pressure generated by the contact pressure enters the crack at a very high speed, and at the same time, the crack of the gear cover closes the crack, so that the oil pressure in the crack is further improved.
Fourth, in the transmission, the load on the pair of single teeth of the gear is greatly prolonged, which is also the reason for the rapid wear of the gear. At the same time, some impurities and floating matter in the air enter between the meshing faces of the gears, causing wear.