Slag is the residue after beneficiation or smelting. A few years ago, most of the slag produced was discarded or buried, and it was not effectively used, which wasted a lot of resources and polluted the natural environment. In recent years, the particle size of environmental protection has been continuously enhanced. With the advancement of technology, people have a better understanding of slag. We found that slag is an active mixed material of cement after grinding, so the slag in the industry has been integrated in the past two years The utilization rate has been improved, as the main production equipment vertical roller mill in slag processing, has been developed. There are many types of mills on the market, which mills are suitable for processing slag? Investors who invest in the slag processing industry will definitely encounter this problem in the initial stage. Due to the high hardness of slag, it is recommended to use SBM-S slag Mill to process it. SBM-S slag vertical roller mill is our company based on many years of vertical roller mill R & D and production experience, for the special product of granulated blast furnace slag, through the multi-unit cooperation of the professional team dedicated research, the vertical roller mill thermal system calculation, equipment selection calculation , The main parameter calculation, the powder separator calculation and research and development and design of ultra-fine grinding equipment, which integrates grinding, drying, classification in one, has the characteristics of high grinding efficiency, strong drying capacity and so on. The process is simplified, the area is small, the investment is saved, the power consumption is greatly reduced, the service life is long, and the ultra-fine grinding innovative process technology with high operation rate is realized.

A series of mills produced by SBM heavy machinery, especially slag vertical roller mill, which are used in the cement and concrete industries, can effectively increase the utilization value of blast furnace tailings, thereby realizing the deep processing of blast furnace slags from the original outbound sales to resources Develop and use to create greater value for the company. SBM heavy machinery has been researched and developed by the needs of several customers, not only to meet the problem of cement processing, blast furnace slag processing, but also to meet the quality requirements. The new type of slag vertical roller mill is a kind of pulverizer equipment specially designed for ultrafine powder processing. It has irreplaceable advantages in the blast furnace slag ultrafine powder processing technology and makes a great contribution to the sustainable development of human resources and environment. The processing factories of slag enterprises all know that at the slag vertical roller mill cement production site, a large amount of waste slag generated after blast furnace ironmaking is dried and immediately sent into a slag vertical roller mill "big mouth" by a long fully enclosed tape. After high-tech processing, the giant vacuum cleaner directly feeds the superfine powder of slag into the finished product warehouse. The entire production process takes place in a closed environment. This slag vertical roller mill cement production line developed by SBM Heavy Machinery can “swallow” 15 million tons of blast furnace slag annually, which not only converts these former waste products into low-cost, high-quality green cement, but also adds economic benefits to the company. Up to now, SBM heavy machinery has maturely mastered the proportion and method of preparing high-performance concrete by replacing blast furnace slag ultrafine powder with a large proportion of cement clinker, and developed the processing technology of blast furnace slag ultrafine powder. . The development of blast furnace slag ultrafine powder processing technology projects and the development of blast furnace slag ultrafine powder processing technology development, the mill equipment has played a great role. SBM heavy machine has many years of production of mill equipment, technology, research and development, export experience and technology accumulation, the slag vertical roller mill produced, vertical roller mill, high pressure medium speed mill, superfine mill, Desulfurization mills and so on have played a great role in various fields and industries. Limited information on the website For more product introductions, please click on the online customer service and telephone on our website.

Gypsum is a monoclinic mineral whose main chemical component is calcium sulfate (CaSO4). Gypsum is a widely used industrial material and building material. Can be used for cement retarder, gypsum building products, model making, medical food additives, sulfuric acid production, paper filler, paint filler, etc. Gypsum board is an energy-saving and environmentally friendly product from the entire process of production, installation, and use. It can greatly reduce energy consumption and carbon dioxide emissions, and has become a new building material product that the country strongly encourages to use. Driven by a series of government bans on sticking and restricting stickiness, the application area of ​​gypsum board is expanding. Previously, China's gypsum board had a sales growth rate of more than 30%, and it is expected that it will maintain a rapid growth of 10% -20% in the next ten years. At present, energy conservation and emission reduction has become China's basic national policy. This is not only the need to improve the quality of economic growth, but also the obligation of a responsible big country. Many companies in the paper gypsum board industry do not implement national standards, their own standards are confusing, and gypsum powder is used instead of gypsum as a raw material to reduce costs. This new type of material with good market prospects has been promoted. A certain obstacle. For gypsum processing and reuse, the rigidity requirements of the gypsum vertical roller mill are relatively low. However, due to economic benefits, the stability and milling efficiency of the gypsum vertical roller mill are relatively high. Claim. Therefore, the gypsum vertical grinding mill requires that the gypsum vertical grinding mill has the highest possible grinding efficiency under the condition that the gypsum powder processing is stable and pure. SBM heavy machine is China's large vertical grinding mill research and development and production export base, is an enterprise specializing in the production of micron powder grinding equipment. Including Raymond vertical grinding mill, vertical vertical grinding mill, high pressure suspension roller vertical grinding mill, European coarse grinding mill, well-known in the industry, it can be called a model of gypsum vertical grinding mill, gypsum vertical grinding mill The mill (European vertical roller mill) is used to process gypsum, which not only increases the output, but also has low power consumption. It is equipped with more advanced dust collectors and the dust emission concentration is completely lower than national environmental protection regulations, which greatly reduces production costs for enterprises. Introduction to the working principle of gypsum vertical roller mill: The raw slag of the gypsum vertical grinding mill enters the feeding bin through the grabber, and after feeding, it is fed into the helical feeding mill by the conveying belt into the screw feeding device. In the vertical roller mill, the gypsum material rotates with the grinding disc from the center under the action of centrifugal force. After moving to the edge, after the compaction, deaeration, and grinding processes, the material is taken up by the hot air entering from the air ring at the edge of the grinding disc and dried instantly. The finer particles are taken to the classifier for sorting, coarse powder Return to the grinding disc and grind. The qualified fine powder is taken into a bag dust collector, and the air powder is separated after the finished product is collected. After the finished product is collected, it is transported into the finished product bulk warehouse, and the exhaust gas is discharged after being silenced by the fan. Part of the hard-to-grind large-scale gypsum material enters the external circulation system through the slag discharge port at the wind ring, and is fed into the mill by the hoist again for grinding.

The increase of output and decrease of energy consumption of vertical roller mill have been the focus of attention of users of vertical roller mill. In general, the factors that affect the energy consumption of vertical grinding mainly include the particle size, moisture content, temperature, grindability, fineness of finished products and specific surface area requirements. We can reduce the energy consumption of the mill by developing and utilizing the new vertical roller mill, increasing the rotational speed of the vertical roller mill, and adding grinding AIDS in the grinding process. So as to reduce the energy consumption of the whole grinding process, reduce the production cost and improve the economic benefits. SBM small make up to help you explain how to realize the vertical roller mill energy saving and consumption reduction through these aspects of control. 1. Reasonable particle size matching of grinding materials. Under normal circumstances, the maximum grinding size allowed by the vertical roller mill is 75mm, but the content exceeding 45mm should not exceed 3%, the content exceeding 25mm should be less than 15%, and the material content not exceeding 25mm should be 85%. So we must follow ". Much wear and little wear" To ensure that the particle size before the material enters the vertical roller mill should be controlled at -25mm and 85%, so as to increase the output of the mill and reduce the energy consumption of the mill.

2. Water content of raw materials. Vertical mill has drying function, which allows the water content of the materials into the mill to be controlled within 15%, while the water content of the materials out of the mill should be less than 1% to prevent the raw materials from sticking and blocking in the mill. However, heat is needed to dry the materials. The heat energy used to dry the materials to evaporate water accounts for a large proportion of the total heat. Therefore, reducing the moisture content of materials into the mill is of great help to save heat energy and improve the efficiency of the mill. 3. Temperature of raw materials. The temperature control of the raw material can ensure the good grinding condition and avoid the high temperature of the raw material. If the temperature of the materials into the mill exceeds 90℃, the temperature in the vertical roller mill will generally exceed 120℃. The higher the temperature of the vertical roller mill, the stronger the static electricity generated by the product particles. The particles will gather under the adsorption of static electricity. Under the impact of the steel ball, they will stick to the steel ball and the lining plate, forming a buffer layer, resulting in a significant reduction in grinding efficiency. 4. The grindability of raw materials. The wear - resistant parts of the vertical roller mill include the roller and the disc. Therefore, it is necessary to control the materials into the mill and the hardness, according to the ability of the vertical roller mill to choose the materials with the same grindability. Also pay attention to the grinding materials do not mix with non-grinding or high abrasibility of the ore, leading to wear agent wear increase or damage, can also save energy parts wear rate.

SBM-K series cement vertical roller mill is compact in structure, small in size and fully enclosed. It is mainly composed of high-efficiency powder separator, grinding roller device, grinding disk device, grinding roller hydraulic loading device, hydraulic lubrication system, reducer, motor, electrical and other parts . The separator is an efficient and energy-saving powder selection device. The combined conical grinding roller is a component used for crushing and crushing materials. The grinding disc is fixed on the output shaft of the reducer, where the grinding rollers roll the material. The hydraulic loading device is a component that provides grinding pressure to the grinding roller, and provides sufficient pressure to the grinding roller to crush the material. The motor of the vertical roller mill drives the grinding disc to rotate through the reducer, and the material falls from the feeding port to the center of the grinding disc. Under the action of centrifugal force, it moves to the edge of the grinding disc and is crushed by the grinding roller.

The crushed material overflows from the edge of the grinding disc and is Nozzle ring (air ring) high-speed upward hot air flow is brought into the high-efficiency powder separator integrated with the vertical roller mill. After the coarse powder is sorted by the separator, it is returned to the grinding disc and re-milled; the fine powder is milled with the air flow. Collected in the system's dust collection device, it is the product. Coarse particles and metal parts that have not been carried by the hot air flow fall from the wind ring, are scraped out by the scraper, and then fed into the mill by the outer-circulating bucket elevator to be ground again. SBM-K cement vertical roller mill is a new type of vertical roller mill developed by our company for the final grinding process of cement clinker. It integrates grinding, drying and classification. Compared with traditional mills, its great advantage is that Low energy consumption: The average power consumption is less than 30kwh / t. Due to the advantages of high grinding efficiency, large drying capacity, stable product fineness, and low operating costs, the equipment has become a new generation of new environmentally friendly cement grinding equipment. SBM-K cement vertical roller mills have various varieties and complete specifications. According to different project scales, they can meet the production needs of 1000-7000 tons of cement clinker per day.

The vertical roller mill is mainly used for the grinding of cement raw materials, and the dust is conceivable. If it is not cleaned for a long time, it will lead to insensitive parts and components, and over time, it will cause blockage of some parts. Therefore, it is necessary to clean the vertical roller mill once in a timely manner. The vertical roller mill is a relatively large machine. How to clean it is also a headache. SBM Heavy Machinery has given some suggestions based on more than 50 years of research and production experience. 1. For small parts, we can adopt manual cleaning. Parts can be removed and placed in diesel, kerosene or other cleaning liquids. Manual cleaning is performed with tools. Of course, this applies only to small parts. 2. For the parts with complicated structure, manual cleaning is not very convenient. We can use spray cleaning method, spray water pipes or other tools to clean it, and the effect is very good. 3. For components with more complicated structures, cleaning equipment can be used for cleaning. Generally, different cleaning liquids are used to perform operations according to the principles of ultrasonic and vibration cleaning. In general, the cleaning of the vertical roller mill should be combined with the actual conditions, and different cleaning methods should be adopted according to the different levels of different parts of the dust. SBM Heavy Machinery recommends that everyone clean the vertical roller mill before assembly to ensure The machine has a better working efficiency

How to determine the optimal water content range of the vertical roller mill feed is an important measure to improve the grinding efficiency, and its range depends on the following factors: 1. When the fluidity of the material is good, the moisture content of the material can be appropriately increased. After adding fly ash, with the increase of fluidity, the requirement of slag moisture content can be slightly expanded. 2. When the material is stored for too long, even if the water content is the same, the viscosity of the grinding paste is high. Some ten-year-old tailings ponds will grind paste, even if the water reaches 0.8% paste 3. The smaller the caster opening in the seal diaphragm section of the vertical mill, the easier it is to block, and the water content of the material is appropriately increased by increasing the caster opening 4. The vertical mill has large air volume, high wind speed, high internal temperature of the mill, and the moisture content of the material can be increased accordingly. In short, the enterprise should find a good humidity range and control it within the range according to the slag vertical mill type, material, and grinding process.

Since there are so many steel slag formations in the industry, how do you deal with these steel slags? Vertical mill processing steel slag as an excellent production process, what is the value of vertical grinding and grinding steel slag? Steel slag vertical roller mill drives the grinding disc through the reducer The material falls from the feed port to the center of the grinding disc through the feeder, and the hot air enters the mill from the air inlet. As the grinding disc rotates, the material moves to the edge of the grinding disc under the action of centrifugal force. When it passes through the annular groove on the grinding disc, it is crushed by the grinding roller and crushed. After the crushing, the material is brought up by the high-speed airflow of the wind ring at the edge of the grinding disc, and the large particles fall directly to the grinding disc. After re-grinding, when the material in the airflow passes through the upper classifier, under the action of the rotating rotor, the coarse powder falls from the cone to the grinding disc and is re-grinded. The qualified fine powder is ground together with the airflow and collected by the dust collecting device. The product, containing moisture, is dried during contact with the hot gas stream, and can meet the requirements of different humidity materials by adjusting the hot air temperature. By adjusting the classifier, the thickness required for different products can be achieved. 1. Steel slag is used in cement production. Steel slag is a material containing silicate and iron aluminate mineral phase calcined at high temperature. It has similar chemical composition to cement clinker and has hydraulic activity, so it has gelling properties. Waste slag should partially replace or completely replace Portland cement, which is expensive to manufacture and expensive. China's research on steel slag cement is at the international leading level. The steel slag cements currently produced mainly include steel slag slag cement, steel slag slag Portland cement, steel slag zeolite cement and steel slag ordinary cement. The production of steel slag cement generally follows the following process: 2. The physical and mechanical properties of steel slag used in road engineering steel slag depends on the treatment process. Generally, the steel slag with slow cooling treatment has large specific gravity, high hardness, anti-wear and low water absorption. It is a good aggregate for road construction and is stored for one year. The above steel slag, due to partial decomposition, the grading of the mixed steel slag is close to the asphalt concrete aggregate grading requirements. The mixed steel slag is directly used as the asphalt concrete aggregate, and the batching operation is convenient and simple. The steel slag is used as a road foundation, and not only can the steel slag be used in a large amount, but also a large amount of ground steel slag can be saved. 3. Steel slag is used in agricultural steel slag containing a large amount of calcium oxide and magnesium oxide, which can be used to improve acidic soil. Other trace elements can also increase the yield of crops. Especially if the content of P205 is above 5%, it can be used as phosphate fertilizer. There is no exact and scientific conclusion on the application research of steel slag in agriculture. The experimental research on soil type and crop species representative surface is not enough, especially the effect of steel slag fertilizer on soil structure after large application, and the trace element in steel slag Fruit transfer, fertilizer aftereffect and adaptability to soil also require long-term experimental observation, and experience is accumulated to promote the application according to local conditions. Steel slag is used as smelting flux converter slag and flat furnace slag with high calcium oxide content. It also contains manganese oxide and iron oxide. It can not only replace limestone, but also recover useful metals. For example, steel slag is used as solvent for sintering. Steel slag has vertical grinding. The following advantages: A. It can improve the gas transport property of the material layer, accelerate the vertical sintering speed, and achieve the purpose of strengthening sintering; B. It can improve production efficiency, reduce energy consumption, increase reduction rate, and reduce weathering rate: C. Reduce the cost of sintering. Practice has proved that steel slag is good for smelting flux and will not affect the quality of sinter and pig iron.

In the field of high-sulfur petroleum coke milling, SBM heavy-duty vertical roller mill grinding machine has high application value and prominent position in the market. As a high-quality manufacturer of milling equipment, SBM heavy machine has always pursued technological innovation as its development mission. By introducing more advanced scientific and technological innovations, we will promote new high-efficiency vertical roller mills to replace traditional mills to achieve high-yield and high-efficiency milling. The price and selection configuration of the oil coke mill grinding machine formulated by SBM heavy machine for the specific processing information of the customer is more in line with the customer's site requirements, and is a high-tech manufacturer that helps more customers create market benefits. The performance indexes of SBM heavy machine oil coke vertical roller mill are greatly improved. The fineness of the product can be adjusted between 80-400 mesh, which can effectively increase the unit output of single equipment and reduce the energy consumption per unit. It is mainly composed of main engine, feeder, classifier, blower, pipeline device, storage hopper, electric control system, collection system, etc. The structure is advanced and reasonable, the vibration of the machine is very small, the noise is low, the machine runs smoothly, the performance is reliable, not only high yield Efficient, but also energy-saving and environmentally-friendly high-quality equipment, equipped with pulse dust collector in the residual air outlet, the dust collection efficiency is up to 99%, and all the positive pressure parts of the main engine are sealed, which can realize the dust-free processing workshop. In unit time, the equipment is The processing capacity of the material is larger. Under the premise of the same total power of the vertical roller mill, the output is increased by more than 40% year-on-year, and the unit power consumption cost is saved by more than 30%. It is widely used in the petroleum coke milling field. The best choice for increasing production capacity, reducing energy consumption, and improving the competitiveness of the market and market efficiency. How to achieve the clean utilization of high-sulfur petroleum coke and improve economic efficiency has become a concern of the domestic refining industry. The use of high sulfur petroleum coke mainly has two directions: (1) Direct combustion as a fuel for cement kiln or boiler fuel; (2) Gasification of high-sulfur petroleum coke to produce syngas or for steam power generation. With the increase in the production of high-sulfur petroleum coke, the use of high-sulfur petroleum coke has received increasing attention. As a high-quality equipment for high-sulfur petroleum coke production, SBM heavy machine new vertical roller mill grinding machine breaks through the drawbacks of traditional mill grinding, and achieves high-yield, high-efficiency, environmentally-friendly and energy-saving production. It is to enhance the market efficiency and broaden the application of high-sulfur petroleum coke. Preferred equipment in the field.

With the improvement of the level of science and technology, the comprehensive utilization value of coal gangue has been greatly improved and developed. As a vertical roller mill grinding machine focusing on the field of coal gangue milling, SBM heavy machine is in line with the development needs of the market, and continuously carries out technological innovation and Innovative, high-yield and high-efficiency gangue vertical roller mills have stronger price and selection characteristics, higher powder extraction rate, not only large capacity, but also energy saving and emission reduction. It is a powerful weapon to enhance the utilization value of coal gangue resources. 1. Application status of coal gangue According to authoritative data, in 2013, the total production of coal gangue in China was close to 750 million tons, and the comprehensive utilization was 480 million tons, accounting for 64% of the total annual output, of which 150 million tons of coal gangue were used for power generation, accounting for 32% of the total comprehensive utilization. %; the production and utilization of building materials is 56 million tons, accounting for 12% of the total comprehensive utilization; the amount of coal gangue used for land reclamation, filling mine goaf and backfill subsidence area is about 260 million tons, accounting for 56% of the comprehensive utilization. At present, the technologies that have been developed are more advanced and have good environmental-economic benefits: energy utilization of coal gangue, power generation and utilization of building materials.

2. Analysis of application methods of coal gangue For coal gangue with high carbon content, ie carbon content ≥ 20% (heat value is 6270 ~ 12550kJ / kg), it can be directly used as fuel for fluidized bed boiler for coal gangue power generation. In the field of building materials, the performance of coal gangue sintered self-insulating block as an energy-saving green product can meet the requirements of national building energy saving of 65%. Coal gangue can produce ceramsite light aggregate, can produce cement, can produce chemical products, can be used to improve soil and promote surrounding ecological restoration. With the development of coal gangue comprehensive utilization technology, the available way of coal gangue will be continuously Expansion and extension, as an advanced milling tool for coal gangue, SBM heavy-duty coal gangue vertical roller mill grinding machine will also adapt to the development needs of the industry and make due contributions to the utilization value of coal gangue resource utilization. 3. The value of coal gangue vertical roller mill grinding machine SBM heavy-duty coal gangue vertical roller mill grinding machine is a high-quality equipment successfully manufactured for the resource utilization of the industry. It integrates drying, grinding, grading and conveying. The structure is compact and the floor space is small. It is only a ball mill. 50%, can be set up in the open air, low construction cost, high degree of automation, equipped with automatic control system, can realize remote control, easy operation, system whole sealing, full negative pressure operation, no dust overflow, basically can achieve dust-free workshop, The preferred equipment for coal gangue to realize resource utilization and processing.