Due to the recent China's construction, water conservancy and other aspects of the construction, increase the demand of domestic sand, sand industry very influential; rise sand industry, the mining machinery industry of sand making machine, processing equipment and technological process of research and improvement. As an important part of sand and gravel production line, sand making machine is very important for its stability and durability because of its important position in the production of manufactured sand.

The mechanism of sand production line can not only provide high-quality aggregate for highway, railway, high-rise buildings, municipal engineering, hydropower dam construction, port, concrete mixing station, and increasingly become the main stream of production equipment of metal ore, quartz sand, slag processing and other fields, has become the core mechanism of sand and stone plastic industry field the.

Technological process

First of all, the material into the jaw crusher preliminary broken; secondly, the coarse material produced by belt conveyor to the crushing machine for further broken, then after crushing sandstone vibrating sieve into two kinds of gravel, sand sand mechanism to meet the feed size of sand making machine, another part of the material to return again into fine broken.

Part of the sand machine's material is made into sand, washed by sand washing machine (optional) and made into finished sand. The other part of the machine is broken again, and the final output of all kinds of machine-made sand meets the requirements.

Process characteristics

1. the product is cubic, strong and excellent, with low content and strong compression capacity, which is suitable for high standard construction, such as water conservancy, bridges, highways and high-rise building industries.

2. the mechanism of sand production line is suitable for granite, Xuan Wuyan, river gravel, aluminum, cement clinker, quartz stone, Jin Gang sand, sand, iron ore and other raw materials are broken, the traditional customer service mechanism of sand production equipment is only applicable to soft material crushing shortcomings.

As one of the important basic materials in the construction industry, sand and gravel will contribute to the construction of China. As a manufacturing machine for sand and gravel, the sand making equipment provides sufficient raw materials for the building. Now, the development of the mine concrete and construction industry is very rapid, which has added power to the sand and stone industry. Natural sand is now unable to meet the demand of the market, and it needs mechanism sand to help its development. The mechanism of sand compared with natural sand, the availability of more, especially in the building construction, it shows a great advantage.

Because of the demand of the market, the important position of the sand and stone industry is not to be underestimated. However, with the rapid development of China's economy, at present, there are many problems in the sand and stone market. We need to pay attention to it.

First, the scale of sand making enterprises is small. There is a lot of demand for the mechanism sand, but the market is obviously not able to meet the demand for use, which needs to be improved. The management level of many manufacturers is low. Many system sand making machine manufacturers now unexpectedly also depend on the nature of mining, this model of development is very terrible, because of the limited resources, it makes the development of these manufacturers limited.

Second, the means of mining are relatively backward. Now is the high-tech era, and the advanced production technology is productivity. If we want to get a high level of production and productivity, we must increase our efforts in importing the machine. Moreover, the mechanization and automation level of the sand making industry is relatively low, which brings trouble to the development of the factory.

In view of this, the manufacturing enterprises of sand making equipment have a lot of space to develop, because the demand for users is growing rapidly in the future. At this time, the sand making machine manufacturing enterprises should develop steadily, ensure the quality of the machine, let users have no worries, and guide the enterprises to develop in the right direction.

Third, in order to develop more long, the production standards of sand making enterprises should be more perfect. Relative to other industries, the policy and planning of sand and stone are less, and some of the policies and relevant regulations are relatively backward. So, this requires the workers in the industry to work harder to prepare for the standardization of the sand machine.

With the progressive movement of the milling industry, the raw material processing industry has reached an international level. The ultrafine mill is also becoming more and more high in the machine grinding industry. In order to meet the demand of the market, the ultrafine grinding machine gradually has the trend of scale development. Let's get to know the features of a large ultrafine mill. This will help us to get a better understanding of the large grinding machine.

First of all. the remarkable feature of the large ultrafine mill is that its production capacity is increased, that is, the increase of the grinding capacity. But according to the powder yield per unit time, the production of large equipment is equivalent to 6 conventional equipment. Therefore, in fact, the device can greatly reduce the area of possession, thus saving the cost of the use and investment of the workshop. Such a huge factory installation function can bring more benefits to the enterprise.

Secondly. the mechanical structure of the new ultrafine mill is the rule of the new grinding equipment. During the running process, the grinding roller and the grinding ring can always maintain a balance. This forms the linear structure of the grinding zone. With the same energy consumption as the traditional production equipment, the production can reach thirty percent to forty, thus greatly improving the production efficiency of the enterprise.

Third. the equipment of the large ultrafine mill is made up of the whole molding. So the whole seal is strong and can not produce any dust spatter in the process of production. In addition, the outlet of the fan is equipped with a pulse dedusting cleaning device, and the dust collecting efficiency can be as high as 99.99%. Therefore, it is a very environmentally friendly production equipment, it can achieve dust free processing operations.

Fourth. the structure of the large ultrafine mill uses a new seal design. The roller device can automatically add lubricating oil after 1000 hours of work, so that the safe and reliable operation of the equipment can be fully guaranteed. Besides, the mill assembly device makes operation, maintenance and replacement work more convenient, and the grinding ring replacement operation is more convenient. It does not need to remove the grinding roller, and can carry out lubrication and simple maintenance and cleaning operations.

The ultrafine mill is mainly suitable for the some ore and nonmetallic materials. Its application is very extensive, and it can be widely applied to various industries that need grinding operations, such as paper making, cosmetics, medicine, food, chemical industry, metallurgy and so on. Ultrafine Mill is made up of a number of production systems, such as grinding system, powder selection system, pulverizing system and dust removal system. The fineness of the finished product is very high, so it can be used for high quality cosmetic raw material grinding and drug grinding. Its environmental protection effect is very good, can meet the requirements of the home standard, the cost of investment is also low, so it is widely accepted by the users. Now, the ultra-fine grinding machine has become a widely used grinding equipment in many new industries, and it has also become the mainstream grinding equipment.

For large equipment, the operation is a very important work, reasonable operation can not only reduce the failure to make the production smoothly, but also can reduce downtime, will also reduce the probability of the accident, so as to guarantee the use of less cost in production investment. Especially for pulverizing equipment, ultrafine grinder is a large fine operation equipment. In the production process, it is more necessary to strive for improvement in operation, and strive to operate properly and correctly, and avoid serious consequences due to a little mistake.

In addition, the basic nursing work of the ultrafine mill should be done well to better ensure the efficiency of the ultrafine mill. So, we should do the following.

1. we should understand the relevant operating rules of ultra-fine grinding equipment, and the maintenance of it should be regularly implemented. For example, mechanical inspection, parts adjustment, and so on, according to the actual use of the situation to rationally arrange the strength of maintenance.
2. the installation of ultra-fine grinding equipment should be done well. According to the installation diagram of the supporting device, each component will be installed smoothly to fully cooperate with each part.
3. regular lubrication ultrafine grinding machine and replacement parts. Only the correct mechanical nursing, can prolong the mill fundamentally life, improve its efficiency.

The increase of high-pressure Raymond mill speed and inclination, will make the quality of the material flow increases, the residence time is shortened, this is because as the speed increases, the number of materials per unit time into the material layer of the active layer increased, per unit time of material axial displacement increasing material axial movement speed increase, and material quality increase the flow of material, shorten the residence time.

With the increase of the inclination of the kiln, the speed and gravity component of the high speed Raymond Mill increases along the axial direction, and the velocity of the material moves along the axial direction, and the residence time of material is shortened, and the mass flow rate of the material increases. With the increase of kiln stopper lost height, mass flow rate increases, the residence time is shortened. The height of the retaining ring increases by 1 mm, the material mass flow will increase by 1% to 2%, and the residence time will shorten by 0.15% to O.25%. However, the relationship between the height of the retaining ring and residence time remains to be further verified. This is because the installation of the tail gear ring affects two aspects of the residence time.

On the one hand, the height of material accumulation at the end of the feeding pipe increases, and the slope of the material layer increases, which is equivalent to the increase of the kiln inclination. The axial movement speed of the material increases and the residence time of the material decreases.

On the other hand, the thickness of the material layer is increased, the cross section area of the particle flow is enlarged, the axial velocity of the material is reduced, and the residence time of the material is prolonged. The lengthening and shortening of the material residence time depends on the comprehensive effect of these two aspects. For the test chamber of the variable diameter kiln, the residence time of material decreases with the increase of the height of the retaining ring of the kiln, indicating that the former has greater influence on the residence time than the latter.

In order to adapt to the needs of urban modernization construction, the waste of urban construction waste is turned into a treasure, and our researchers have carried on research for several years, and finally successfully launched a complete set of construction waste crusher. Construction waste crusher processes to jaw crusher, counterattack crusher, vertical impact crusher, hydraulic cone crusher, vibrating screen, feeder and other special equipment after assembly will be construction waste crushing and screening. The product is optimized and designed with higher strength, better performance and more compact structure. The product has reliable performance, good stability and strong mobility, reduce material handling cost, flexible combination, strong adaptability, easy maintenance, etc., to produce a product can be widely used in the baking-free brick, road foundation, construction and other industries, for the urban construction onto the road of virtuous cycle development provides a new train of thought.
Finished products after construction waste:
1. Many wastes in construction waste can be reused as renewable resources after sorting, removing or crushing. For example: scrap steel, scrap iron wire, waste wire and various scrap metal parts, after sorting, concentrating, re-entering the furnace, can be reprocessed into various specifications of steel;
Waste bamboo can be used to make artificial wood;
3. Brick, stone, concrete, such as waste after crushing, can for sand, used for masonry mortar, plaster mortar, concrete cushion, etc., can also be used for making brick, brick pavements, beautiful case, brick and other building materials products.
Recycling construction waste -- to realize the economic, social and ecological benefits of construction waste recycling, reduction and harmfulness.
1. The use of recycled raw materials for processing and reproducing products will receive tax support from the government and have considerable economic benefits.
2. Save the cost of landfills and landfill sites, and reduce environmental pollution.
3. Reduce the exploitation of natural sand and stone, protect natural resources and human living environment, and meet the sustainable development strategy.

The milling industry is in constant development, the ultrafine mill is one of the commonly used equipment, the application of this machine is more extensive, this is mainly because of their advantages can meet the production requirements, here is to explain in detail the advantages of the problem.

1. Structure
The main components of the ultrafine mill include main engine, fan, analyzer, collector, dust collector and so on. The layout of these different parts is compact and reasonable, and the outstanding features are convenient operation, safe operation, good sealing and little noise in production.

2. Many types of grinding cavity and flexible application
This machine to replace the fixed cone liner, gear ring lining plate can make the grinding cavity from the standard super thick cavity to cavity type superfine short head only need to transform any additional equipment, internal analysis machine, it is in order to complete the detection for the fineness, will loosen bolts on the rear, to move the fineness decreased, moving down to what you need to increase the fineness, fineness, fixed bolts can be produced, very convenient;

3. easy loss is less consumed
When processing equipment for material, the internal parts can also be affected by the loss, this loss occurs, will increase the cost of production inputs, and ultrafine mill internal wear parts are hard to wear, can reduce the damage frequency, improve the reliability and reduce the production cost of investment;

With the continuous acceleration of urbanization, urban renewal and the construction of urban villages have resulted in a lot of construction waste. Construction waste crusher disposal methods, most of which are for waste concrete. Construction waste resource utilization is the different material crushing, screening, removing impurity and dust removal equipment production technology together, reproduction and resource has the close relationship between the quality of product, so meet the needs of the construction waste into economic applicable construction waste processing technology, processing takes system planning, and select the processing equipment of high quality.

Construction waste crusher is a kind of equipment used in building waste resources, and it has caused a great reaction in society. Construction waste crusher can be waste, waste and walk the road of sustainable development, using the construction waste crusher in the field of construction waste classification of crushing, screening process, can effectively reduce the cost of outbound. In addition, construction waste crusher removal device is a steel construction waste of special equipment, and the host will not appear jams phenomenon, the size and the shape of recycled aggregates, is currently the best construction waste crushing equipment.

Construction waste crusher has realized the crushing ability is quite good, can not only meet the needs of users, and the size and the shape of the neat, also do a good job after crushing material particle size is very raw material, suitable for the production of environmental protection brick for construction waste regeneration aggregate crushing technology has made a perfect plan.

In recent years, the grinding mill used in more and more fields, for example, non-metallic minerals, chemical raw materials, advanced ceramics raw materials, processing precision abrasive etc., can be used in ultra fine mill  for processing, but the face of ultrafine mill type variety, how to choose it, standing in the user perspective simple analysis on how to choose the appropriate ultrafine mill machine.

At present, the size of the size of the more than 100 mill manufacturers, facing a large number of ultrafine mill manufacturers, how to choose the customer? This is a problem for users. The ultrafine grinding machine is widely used in the grinding of metallurgical, building materials, chemical, mine and other fields.

The expansion of the application scope of the ultrafine mill has brought the gospel to the users, and it also brings difficulties to the users. Because of the expansion of the scope of application, a large number of manufacturers have come to produce ultrafine mills and other grinding machines, which have laid the obstacles for the user's choice. After years of experience, Shi bang machine has brought the gospel to numerous users. According to the requirements of customers, we summed up the following items, attacking customers' reference.

When choosing the ultrafine grinder, we should pay attention to the following points: whether the machine meets the requirement of product fineness, which is the basic requirement; secondly, whether to meet the requirements of output or scale. Mainly considering the production capacity of single equipment, in order to meet the premise of production, the number of equipment table is as few as possible.

According to the point of view of saving, the unit energy consumption of the ultrafine mill is also an indicator of choice. The lower the unit energy consumption, the lower the production cost of the product, the greater the income. In the process of use, the wear and tear of the equipment is also an important parameter. The wear and tear of equipment will increase the service life of the bottom hole equipment, increase the cost of equipment input, and affect the quality of the products. When the equipment is selected, the strength, material and abrasion resistance of the worn parts should be compared.

In the selection of ultrafine mill, remember, good machine, its equipment matching performance is generally excellent. Moreover, the user should choose the simple equipment of the process system, save many unnecessary links to our production, and save the cost of production. It is also necessary to choose equipment with good performance and simple process as much as possible, which has brought guarantee to production.

Now, environmental protection is more and more important, so environmental indicators can become long producing many machinery industry standard, so, as a user, we should choose the dust emission, noise, environmental protection and labor safety and health standards of the equipment, the response of policy.

Company development and production of ultrafine mill is a kind of vertical milling machine, it can be used for a variety of ore materials and the production of flour, Ultrafine Mill application field is very wide, the following information for more than two of the product for your brief introduction, I hope for your help to the production of flour with a certain.

Ultrafine grinding mill is a product of vertical mill. When it is used in ore material pulverizing, it uses the principle of material disc grinding, that is, ore material is transported to the material tray of machine, and then it is rolled by the grinding roller on the material pan to achieve material grinding.

Ultrafine mill is a machine developed in the mill on the basis of the research, its purpose is to expand the scope of product fineness of vertical milling machine series products, the original 80 mesh to 400 mesh fineness range of 80 to 650, this is because the company developed legislation the original grinding fineness of 80 mesh to 400 mesh, the machine developed after the vertical mill in the range of fineness 400 mesh to 650 mesh, and therefore expand the machine finished feed range.

Ultrafine mill can grind mineral species more, generally if the ore Mohs hardness of less than five, the mineral density below 3.2, minerals belong to non flammable and explosive products, customers need to get the finished material fineness in finished product fineness in the scope of this machine, most can use this product to the production of flour, and can these ore materials are as follows: limestone, dolomite, calcite, barite, talc etc..

Because ultrafine grinding powder grinding fineness can be relatively high, in 400 to 650, but the relatively narrow range of fineness of slag powder, so finished industrial applications are not particularly like in metallurgical industry, non-metallic ore milling industry, this product has important applications.

After the ore ultrafine mill grinding, mainly used to produce raw materials for production or packing, such as limestone materials, after the product was obtained by grinding 600 or 400 mesh fineness of material, can be used as fireproof ceiling and floor brick production, can also be used in the manufacture of rubber and plastic etc..