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Why the screening process in the gravel production line is critical

The finished product of the sand and gravel production line includes both small-grained sand and large-granularity stone. The sieving of the raw material of the finished product is mainly carried out by the round vibrating screen of the sand and gravel production equipment. The production of sand and gravel materials is divided into links such as crushing, screening and VSI Crusher. The quality control of sand and gravel aggregates is mainly based on the particle size and grading requirements of concrete aggregates. Advanced and mature crushing equipment, vibrating screens and standard aperture drying are used to ensure The grading quality standards and regulations determined by the produced concrete aggregate composite specifications. 1. Screen size control: The screen for screening coarse aggregates can be a square mesh screen made of polyurethane material. The size of the mesh is divided into 5mm, 10mm, 20mm, 40mm, 80mm and other specifications according to the aggregate gradation. The production process Except for the gravel inspection, every month or every 20,000-30,000 cubic meters of production needs to be inspected and repaired once to ensure the integrity of the production equipment. In water conservancy and hydropower projects, multi-layer screening and classification are commonly used. In small projects, because of the small amount of dashi used, drum screens can be used for individual production as needed. Second, the screen removal of impurities: the inclination angle of the screen and the amount of raw materials that need to be screened are strictly controlled, and a reliable and stable washing system is equipped for it. The layout of the water spray holes should be uniform, and the water pressure should be adjusted to the appropriate pressure during washing. The purpose is to keep the water uniformly covering the entire screen and keep the screen tools clean at all times. Therefore, after the stone material is crushed, it is also very important and key to do a good job of sieving the stone material, because the sieving of the finished material directly affects the particle shape of the subsequent finished product, and thus affects the quality of the finished product.

Facing the price and quality of Raymond mill, what choice have you made

When buying a Raymond mill, you have a dilemma in terms of equipment price and quality. It is difficult to choose. The better the price is, the more expensive it is. In the current market, price has become the key word to measure the quality of things. According to the current market conditions, the economic status quo in recent years reflects that many customers want to change the original production model and are facing a situation of tight economic conditions. Therefore, I would like to remind you whether you have counted the relationship between price and quality. First of all, low price is the current transaction method for everyone, and seemingly simple requirements are difficult to achieve. For example, buying a Raymond mill is an example. If a customer wants to find a suitable buyer in Shanghai to reach a cooperative relationship, then There are countless large and small manufacturers in Shanghai. More than half of the ideal cooperation is found in many manufacturers, just like finding a needle in a haystack. Then, the grinding customers face the following difficult choices. Secondly, there are many manufacturers of Raymond mills, which is dazzling and difficult to judge the strength of the manufacturers and the quality of the equipment. And the manufacturers are divided into three, six, nine, etc. Even if the strength of the manufacturers is to be figured out, they still need to face selection difficulties, because it is difficult to make a judgment on the price. Third, the type of Raymond mill manufacturers, their small-scale enterprises, their own strength is not good, the technology is not hard enough, and the main equipment price is relatively low. Medium-sized enterprises have their own average scale, low level of enterprise strength, not cheap product prices, and focus on professional and technical levels. Its large enterprises have strong comprehensive strength, but are expensive, focusing on service strategies of all aspects of quality and service. However, there is a contradiction between purchasing Raymond mill equipment and economic strength, and it is difficult to choose. At the same time, I don't know much about the actual situation of several manufacturers in the phase, and I'm afraid of being cheated. Finally, according to the above situations, as a manufacturer can understand, the above two points are also summarized. The price and quality concerns of Raymond mills are based on their own judgment, and the quality is controlled by the manufacturer. If you need users of Raymond mill equipment, you can call for detailed consultation.

Matters needing attention for vertical mill parts cleaning

Cement vertical 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 lies in low energy consumption. : The average power consumption is lower than 30kwh / t. Because of 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 mill has various varieties and complete specifications. According to different project scales, it can meet the production demand of 1000-7000 tons of cement clinker per day. The mill is mainly used for the grinding of cement raw materials, and its dust can be imagined. 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 mill regularly and in time. The vertical mill is a relatively large machine. How to clean it is also a headache. SBM Heavy Machinery has given some suggestions based on its more than 50 years of research and production experience. 1. Cement vertical grinding: For smaller 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 only applies to small component. 2. Cement vertical grinding: Manual cleaning is not very convenient for the parts with complex structure. We can use spray cleaning method, spraying water pipe or other tools to clean it, and the effect is very good. 3. Cement vertical grinding: For components with more complex structures, cleaning equipment can be used for cleaning. Generally, different cleaning liquids are selected to operate according to the principles of ultrasonic and vibration cleaning. In general, the cleaning of the cement vertical mill should be combined with the actual conditions, and different cleaning methods should be adopted according to the different layers and different parts of the dust. SBM recommends that you clean the vertical mill first before assembly to ensure the machine. Has a good working efficiency. SBM Heavy Machinery has nearly 60 years of equipment production experience, ISO certified enterprises, is committed to building the industry's grinding system comprehensive service provider brand, adhere to the "customer satisfaction is our eternal pursuit" business philosophy, first Promote the industry's "three-hearted" service tenet, and provide customers with a one-stop overall service solution for pre-sale, sale, and after-sale.

Application of SBM vertical slag mill in slag fine powder production line

The ore powder produced by our company's vertical roller mill can be used in the field of cement. Not only can the ore powder be widely used, but it can also ensure the quality of the cement, and also obtain great economic benefits. The vertical mill has a large output and low energy consumption, which fully meets the measurement requirements for the construction of large-scale milling stations. Vertical mill production process, slag fine powder production line, a large number of slags will be generated during the opening of the crushing yard and ore mining. After long-term accumulation, the number of slags generated will be innumerable. If they are not used, they will waste recycling resources. Therefore, in recent years, the rational treatment of slag has become one of the problems that have been solved. With the development of the domestic economy and the continuous improvement of related technologies, slag has also been effectively solved. The vertical mill is a necessary equipment for processing high-hardness ore, and it is also a necessary equipment for slag processing. This equipment is a deep processing equipment developed by SBM for industrial waste processing, making it well used in slag deep processing applications. To achieve the goal of zero pollution and zero emissions, this equipment can fully meet all the requirements of slag processing, and has not brought large profits to investors. The following is the structure principle of SBM heavy machinery slag vertical mill: The raw slag of the slag vertical mill enters the feeding bin through the grabber, and is fed by the conveyor belt into the screw feeding device and fed into the SBM roller vertical mill. After the measurement, the material rotates with the grinding disc from the center to the center under the action of centrifugal force. The edge moves. After the process of compaction, deaeration and grinding, the material is taken up by the hot air entering from the air ring on the edge of the grinding disc and dried instantly. The finer particles are taken to the classifier for sorting, and the coarse powder is returned. Grind the disc again. 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. Some difficult-to-grind large-grain materials (and iron knobs and iron slag) enter the external circulation system through the slag outlet at the wind ring. After removing iron, they are fed into the mill by the hoist and ground again.

What is the difference between Raymond Mill 4r and Raymond Mill 5r

There are many different types of Raymond Mill produced by our company. As for medium-sized equipment, there are two types, one is 4r Raymond mill, and the other is 5r Raymond mill. So, what's the difference between Raymond Mill's 4r and 5r, today SBM Heavy Industry Mill manufacturer will briefly introduce it for everyone. As for the 4r and 5r Raymond mills, the most basic difference is the number of grinding rollers, one is 4 grinding rollers, and the other is 5r grinding rollers. The processing capacity of different rollers is definitely different. In comparison, the processing capacity of 5r Raymond mill is stronger than 4r. Although there is a difference between the grinding rollers, the processing capacity of the two Raymond mills is still relatively large. The output of the 5r Raymond mill can reach about 8-10 tons, while the 4r Raymond mill has only about 3-5 tons. In addition, in terms of power, the 4r equipment is equipped with a 37kw motor, while the 5r is a 75kw motor. SBM is a professional mill manufacturer. The Raymond Mill introduced by our company has stable performance, strong processing capacity, and high cost performance. Welcome new and old customers to visit the factory and purchase equipment. The company can send technicians to the site inspection , Design scientific and reasonable programs.

Selection criteria for river pebble sand making machine

In this era of infrastructure construction, river pebble has become an ideal material for construction and is widely used in buildings, roads, parks and other places. River pebble needs to be processed. River pebble artificial sand making machine are targeted at various particle sizes. The river pebble is crushed to meet the granularity required by the customer. There are also some precautions and standards that need to be taken into account when purchasing river pebble sand makers: 1. Take care of site problems, mining requires documents from relevant government departments, sites need relevant documents, and even transformers also need government departments file. 2. Know your own raw materials and the required output and particle size, so that the sand machine manufacturer can configure a reasonable equipment model according to your requirements. 3. When consulting and inspecting the river pebble sand machine manufacturers, compare the three. Then go to these manufacturers to inspect them in person to understand the strength of the manufacturer and the situation of the production workshop. At the same time, understand what type of accessories the Xiahe Pebble Sand Making Machine is and whether it is highly wear-resistant. 4. After the decision is taken, when signing a contract, remember to list all the requirements on the contract. These points are the points that Shanghai SBM reminds customers to pay attention to when purchasing river pebble sand makers. The river pebble sand makers produced by SBM Heavy Industry have always put quality first and use highly wear-resistant accessories, which effectively reduces vulnerability. Replacement rate of parts, long life and easy replacement. River pebble sand making machine is reasonable in price, welcome to consult

Which jaw breaker has a long service life?

In the stone crushing industry, the commonly used stone stone has diamond, silicon carbide, emery, limestone, marble, dolomite, pebbles, river pebbles, their hardness is very different, such as diamond, silicon carbide is a hard stone, the need to use a good performance of the Construction Waste crusher. SBM machine manufacturing company produces the jaw crusher, the compound crusher, the reversible counterstrike sand making machine, to the roll crusher, the spiral sand washing machine, the drum sieve, the crusher and so on the sand making production line equipment in the domestic market ide is very good, but also sold at home and abroad all the year round. The jaw crusher produced by SBM adopts high quality material production, the crushing strength and strength are large, good performance, can be professional crushing hard stone. In the whole machine, movable jaw is an important part of it, which directly affects the performance of the equipment, in this piece of large machinery is done better, not only for the movable jaw for efficient optimization design, but also to update its materials, the selection of more hardness and more wear-resistant materials, can completely break all kinds of stone with greater hardness. In addition, there are PE series and PEX series of jaw breaking equipment of SBM machinery, and there are many types of each series. For example, PE series has pe-400 & times. , PE - 1800 & 600 times; 2100, PEX series have pex-150 × , PEX - 300 & 750 times; These two series are divided into small and large size specifications, you can choose at will. Their annual output has 400,000 tons, 600,000 tons, 700,000 tons, 1 million tons, 1.5 million tons several grades, the quotation is relative to the peer market is lower, jaw broken machine, welcome to SBM machinery purchase!

SBM Shanghai analyzes the requirements of raymond mill for production materials

In the process of grinding materials, raymond pulverizer should not only pay attention to the size of the equipment, but also need to pay attention to the user's fineness requirements, also need to pay attention to the requirements of some properties of materials. Here, small make up will briefly introduce the Raymond Mill to pay attention to several aspects of the material. First of all, users think that the raymond mill is suitable for the grinding of various materials, this idea is wrong. Generally, the equipment is more suitable for the milling of some ores and substances. Because the raymond mill is through the rotation of the mill roller and the grinding between the grinding ring, so the material for grinding and grinding. Therefore, it is generally not applicable to the processing of fiber materials and viscous materials. Secondly, the raymond mill has certain requirements on the water content of the material in the grinding process. Therefore, under normal circumstances, the raymond mill requires the water content of the material to be less than 6%. Once this standard is exceeded, even if the mill is pulverized, it is not easy to be blown by the wind, and cannot enter the analytical machine to select the powder. Thirdly, in the production process of raymond mill, the production and quality of raymond mill will be affected due to the long time for the materials to gather in the grinding chamber, thus affecting the requirements of users on the materials. Then, in normal production, the feed size of its raymond mill is controlled at 30mm, and it is not said that the smaller the particles into the equipment, the better. Because the raymond mill in the process of grinding powder, the particle material is easy to be raised by the shovel, and by the mill roll into powder. Therefore, the particle size is too small, it is not easy to shovel up, and will affect the grinding efficiency of the equipment. Finally, raymond mill to pay attention to the material content, simple for you to introduce here, if there are other questions about this aspect, you can consult our customer service staff online, will answer for you.

Coal vertical roller mill promotes the transformation and upgrading of the coal industry

Coal vertical roller mill are important equipment on coal production and processing lines. Under the dual requirements of current economic development and energy saving and emission reduction, the environmental protection performance of coal vertical roller mills has become a very concerned aspect for enterprises and industries. SBM heavy machinery has been focusing on the field of crushers for many years, and has always been committed to the research and development of coal vertical roller mills, providing customers with the ideal equipment to meet the needs of the current market. 1. Applicable scope of coal vertical roller mill: It is widely used in power and metallurgy, cement, chemical industry, building materials, coatings, papermaking, rubber, medicine, food and other production and living areas. 2. Applicable materials for coal vertical roller mill: It has high production and efficient grinding ability for various non-metallic mineral materials with Mohs hardness below 7 and humidity within 6%, such as cement raw materials, clinker, desulfurized limestone powder for power plants, fine slag powder, manganese ore, gypsum, coal , Barite, calcite, bauxite, etc. have good grinding effect. 3. Performance advantages of SBM coal vertical roller mill: High grinding efficiency, low power consumption, large feed granularity, easy adjustment of product fineness, simple equipment process, small footprint, low noise, low dust, low operating costs, low consumption of wear-resistant materials, etc. Green transformation is an important concern for the current industrial upgrading, and it is self-evident that as a long-term "big energy consumer" coal industry, the energy conservation and consumption reduction results are important. As a professional pulverizer manufacturer, SBM heavy machine takes the lead in realizing the integration of grinding and conveying, one-button automatic startup, and strong single machine production capacity. By configuring the number of grinding rollers, it can achieve a considerable unit output of 5-700T / h. In terms of energy consumption, SBM heavy-duty coal vertical roller mills have always taken the lead in the industry. They can run on low power, and the unit energy consumption can be 40% -50% lower than that of ordinary ball mills, far higher than the national energy-saving and consumption-reduction standards, and environmental performance. The performance is very good, which can help enterprises obtain more economic and environmental benefits, and seize the opportunity in the context of the green industry upgrade of the coal industry. At the same time, the SBM heavy-duty coal vertical roller mill configuration is more advanced than the advanced roller seal device, which has higher sealing performance. The excellent dust collection system can achieve a dust collection rate of more than 95%, which can greatly reduce the probability of dust spillage and can effectively create dust-free Workshop to solve the dust problem during coal processing.

SBM vertical slag mill makes blast furnace slag processing pollution-free

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.