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The sand making machine is the core equipment of the mechanism sand production line, while the sand stone production line is the core equipment of the sand field (quarry). The sand and gravel factory refers to the mining, production and supply units of construction sand and building stone. It belongs to enterprises and is built on many waterways. Inland areas are mostly built on rivers and lakes, and large-scale marine sandstone mining is built according to the sea. The production process of sandstone is mainly divided into two processes, namely mining and selective grading. Its fixed locations are mostly used for storage and selected grading. A medium-sized production enterprise can produce about 100,000 tons of sand per year, and large-scale enterprises can produce annual production capacity of one million tons. Many quarries will become ponds or lakes, or landfills, when they are abandoned. Below we will detail the design principles of sand and gravel plants and stone yards:

First, the sand machine equipment yard setting principle

The gravel plant and the stone material yard refer to the large-scale storage facilities mainly based on the ore blending and mixing of raw ore, which are more common in the metallurgical, chemical, building materials and other industrial sectors. The main purpose is to solve the problem of homogenization of the raw materials and the selected raw materials, so it is also called the neutralization stockyard. In practical applications, the ore grade is neutralized, the fluctuation of the selected grade is reduced, and the beneficiation index is improved. Most of the gravel plants in the northern region are located near river courses and in the river channels in Gangu. Set the yard generally under the following conditions:

(1) The mine's resources are insufficient. Ore must be purchased from outside, and the nature of the purchased ore and the quality of the ore are very different. It is not possible to set up a neutral material yard, and it is difficult for the mineral processing plant to produce normally;

(2) The resources of the mine are abundant, but the material composition and mechanical and physical properties of the ore vary greatly, and it is difficult to ensure the requirements of the concentrator in the mining method;

(3) Mines located in severely cold areas, due to the influence of the transportation system, cannot transport ore stone in winter, and the ore grade changes are relatively large;

(4) There are many kinds of raw materials. According to the process requirements, various raw materials must be fed into certain operations according to a certain proportion, and a neutralization stockyard is also required. Such as metallurgical plants, cement plants, building materials plants, etc.

The large-scale special neutral sand making machine has a large investment and a large area, and it is rarely used in the design of the concentrator. For a concentrator with adequate resources and little ore fluctuations, the method of expanding the volume of the intermediate ore storage in the selective plant can be used instead of the complex medium-duty yard. Small-scale ore dressing plants with small ore purchases may consider artificial neutralization methods and set up small stockyards.

Sand machine equipment stockyard form selection

The neutralization stockyard generally consists of a distribution and reclaiming system, a material pile, a conveying system, a sampling, metering and inspection system. Determine the form according to the nature of the material and the requirements of production.

(1) Storage time of the stockyard: Determine according to the type of stone material, the required neutralization effect, the transportation conditions, and the buffer capacity required. Generally 7 to 10d, depending on the size.

(2) Stacking method: According to different process sand production line process requirements, the stacking method can be divided into herringbone layered stacking method, wave-shaped partitioning method, herringbone and wave-shaped composite stacking method, long strip pile Material method, etc.

The herringbone layered stacking method has a simple cloth distribution method, has no special requirements for cloth equipment, and is suitable for fine-grained materials; the wavy-shaped partitioned material stacking method has complicated fabrics and strict requirements on the stockpiling equipment, but has less segregation phenomenon and is suitable for bulk materials. The other method is somewhere in between. Due to the complexity of the cloth method, only when the demand for neutralization is high is considered.

Over the years, the papermaking industry has used wood as raw material and developed a large number of forest resources. This has caused a large area of ​​woodland in China to shrink, environmental pollution, soil erosion and other sequelae are serious. In recent years, the country has started to put stone papermaking technology on the agenda. Mills also surfaced. The paper produced through stone papermaking is not only waterproof, anti-fog, oil-proof, insect-proof, etc., but also superior in physical properties to tear resistance and folding resistance than wood pulp paper, and the most important is to eliminate the waste of resources. The stone paper mill processes the stone to a specified fineness range and then undergoes a special papermaking process to produce the paper we need.

Non-metallic mines and metal mines, fuels, chemicals and other areas of grinding processing, has always been the pillar of the material industry. Therefore, the development of ultrafine mill technology to a certain extent determines the rational development and comprehensive utilization of non-metallic minerals. At present, China has been able to produce various types of ultra-fine grinding equipment and fine grading equipment. The performance and technology of the equipment have gradually approached the world's advanced level. Some equipment such as Dawn Heavy Industry's T130X-strengthened ultrafine grinding mill has achieved leadership in fine grinding. A very high level of technology. The development status of non-metallic miners is one of the important indicators of a country’s progress in science and technology and industrial development. Many non-metallic miners in industrialized countries have already exceeded the output of metal minerals. The use of non-metallic minerals is mainly reflected in the degree of deep processing, including ultra-fine grinding, fine grading, refining and modification.

China's non-metallic mineral resources are very rich. As an important industrial resource, non-metallic minerals can be directly applied to agriculture, chemical industry, papermaking, plastics, and paints after being graded by crushing and grinding.

Looking at the development of the domestic pulverizer industry in recent years, ultra-fine grinding technology has become the mainstream trend. Dawn Heavy Industries has developed a three-ring medium speed that meets market demand with the support of the original Raymond Mill and high-pressure micro-grinding. Mills, ultra-fine powder mills and other products, adapted to the general situation of China's energy conservation and environmental protection, but also for the majority of users of the mill.

Among them, limestone mill is the most widely used, limestone is one of the most widely used non-metallic minerals, China's highly demanding thermal power plant desulphurization project, the limestone mill produced by Kelirik, desulfurizing mill It has been very good use.

In the process of urbanization, rubbish as a product of urban metabolism was once the burden of urban development, especially construction waste accounted for the majority of urban waste. Looking at the course of development of various countries in the world, many cities have embarrassed the situation of rubbish besieging the city. Human society will inevitably be bound by oneself at the same time. Nowadays, with the transformation of ideas and technological advances, the construction waste industry is considered to be an inexhaustible “urban mineral deposit” with development potential and a “misplaced resource”. Research shows that more than 90% of the construction waste can be used as raw materials for construction materials and reused in urbanization. This is not only the deepening and deepening of people’s understanding of construction waste, but also an inevitable requirement for urban development.

The construction waste crusher industry in China started relatively late, but through the rapid development in recent years and the increasing popularity of the country in environmental protection, China’s construction waste treatment industry has begun to take shape, and the capacity of the waste treatment market has increased significantly. The penetration rate has rapidly increased and the number of companies entering the sanitation industry has also increased rapidly. Now China's construction waste crusher market has entered the growth period from the lead-in period and is rapidly moving towards maturity.

With the environmental protection concept deeply rooted in people's minds, environmental issues have gradually attracted the attention of governments and people of all countries. Energy conservation and environmental protection have gradually become one of the world's development themes. They have begun to provide a broad development opportunity for the construction waste management industry. In the world, billions of tons of garbage are produced each year, and the average annual growth rate of garbage is 8.42%. While the growth rate of garbage in China is more than 10%, it is one of the fastest growing countries in the world. It only generates nearly one billion tons of cities each year. construction rubbish. The cumulative stockpiling of municipal solid waste in China has reached 7 billion tons, of which construction waste accounts for the bulk of this. Under such a huge weight of urban waste, there is reason to believe that the waste processing industry will become the star industry in the future.

Stone is a crucial raw material for the production of reinforced concrete. It is also a relatively widely distributed resource. However, in face of the rapid market growth and long-term and disorderly exploitation, this resource has become exhausted. At the same time, the uncontrolled mining of stone materials has also led to serious soil erosion and large-scale deterioration of ecological landscape in some areas, seriously violating the country. The proposed sustainable development strategy.

On the other hand, a more difficult environmental issue is the disposal of construction waste. In recent years, China's construction waste continues to rise in volume and production, but at the same time it has not been effectively used twice, and the degree of utilization is relatively low. Therefore, whether the waste is not disposed of, or resources are not protected, these issues need to attract the attention and actions of relevant parties. The idea of ​​resource recycling for construction wastes has found a good way out for the disposal of construction waste and lack of resources.

construction waste crusher is a way to convert this waste into a variety of different types and sizes of aggregates for sand and gravel through building waste treatment equipment, and then reuse it as a building material. At present, the annual output of construction waste in China is as high as 1 billion tons, and it is still growing rapidly. If these resources can be reused, not only can they protect resources, maintain the ecological environment, but also create considerable economic and social value.

The reasonable recycling of construction waste is inseparable from the mining machinery and equipment. The mobile construction waste crushing station of SBM Machinery Co., Ltd. can be said to be a convenient and effective equipment for realizing the recycling of construction waste. It is a harmless construction waste. The reduction and resource treatment laid a solid foundation and realized the secondary use of construction waste. As one of the earliest enterprises engaged in the R&D and production of construction waste treatment equipment in China, SBM Machinery focuses on further improving the environmental protection and energy-saving efficiency of construction waste crusher, and at the same time improving the working efficiency of equipment. It has won numerous domestic patent and technology awards. Products are widely used in many major national projects.

The reuse of construction waste resources is an inevitable trend for future development, and construction waste disposal equipment is the foundation. Relying on the country's good policies and publicity, we believe that in the future our lives will be more blue and clearer.

With the old buildings falling down one after another, new high-rises have risen and the urban landscape has changed with each passing day. Behind these phenomena, however, is a scene of a large number of construction waste around the city. "Garbage besieged city, alarm bells ring", construction waste has become a major problem constraining the city's sustainable development. The disposal of garbage has also become a canter for urban managers to go around.

At present, stacking and landfilling are commonly used as construction waste crusher in many areas in China. This is clearly an act of drinking thirst, and it cannot achieve a virtuous circle of construction waste. Therefore, many experts, scholars and people of insight are appealing to society and the government to use scientific methods to realize the resource utilization of construction waste and protect the ecological environment.

The progress of society cannot be separated from the development of equipment. Advanced equipment not only supports the rapid development of urbanization, but also is one of the key conditions for realizing construction waste disposal. Currently widely used in the field of construction waste treatment are fixed construction waste treatment production lines and construction waste crusher, which have different advantages.

The fixed construction waste treatment production line can be flexibly combined with strong adaptability according to the domestic market conditions. Different types of crushing stations have a variety of configurations, users can also choose their own configuration according to their own needs, according to different crushing process requirements composed of "first broken after the screen", can also be composed of "first sieve after the" process, crushing and screening It can also be used alone. The crushing station can be combined into coarse and fine crushing and crushing screening systems according to actual requirements, and can also be combined into coarse, medium and fine crushing and screening systems, and can also be operated independently, with great flexibility.

The mobile crushing station can be divided into two types: tire type and crawler type according to the moving mode. It has the characteristics of strong mobility, and can be used on ordinary roads and in the work area for flexible driving. The entire equipment integrates the whole unit installation, which reduces the material consumption and man-hours consumption, and improves the flexibility of site installation. The materials can be processed on site, which greatly reduces the transportation costs of the materials. The integrated series of mobile crushing stations can be used independently to meet various requirements such as mobile crushing and mobile screening. The operation is effective and the cost can be minimized. The product has been optimized and enhanced to provide higher strength, better performance and a more compact structure.

In the 21st century, people's quality of life has also been improved. A tall building is lined up in an orderly manner. So where does the old house in the 20th century go from here? Faced with people's yearning for improvement in their quality of life, who would still like to live and work in the old house, it took time. The old house was dilapidated and turned into a dangerous building. The demolition, renovation, and improvement brought the old houses into order. What should I do when I sort out the Construction Waste Crusher Performance? Construction waste is construction waste that is caused by people or nature in certain projects, including waste residue, waste bricks, and waste tiles. With the random accumulation of construction waste, which poses both safety hazards and pollution of water resources, air resources and land resources, it is good for such a living situation.SBM Machinery Co., Ltd. is the leader in domestic crushers. For the construction waste in life, SBM mechanical engineers will design a series of methods to solve the construction waste according to the local terrain environment. SBM's building crushing station With high power and efficiency, it can produce satisfactory concrete and aggregate.In the 1950s, concrete appeared in the eyes of people. The crack resistance of concrete is relatively high. Concrete can be used for building walls. It can be used for demolition or renovation of old houses. It can also be used for road construction and the disposal of construction waste. . Our SBM machinery is the top crusher equipment in the country, and even more construction waste will be solved by us.For construction waste in life, only SBM's mobile crusher is needed. In addition, the construction of many buildings in front of the SBM crusher is a piece of cake. After the crusher is completed, the concrete can be made into a variety of materials. The construction waste can be converted into recycled concrete, recycled mortar, recycled wall bricks, recycled permeable bricks and other products. .

The roller type sand making machine refers to the equipment that uses the roller crusher to produce the machined sand. The advantage of sand making on the roller type sand making machine equipment is that the equipment has fewer wearing parts, high wear resistance, and high sand production rate. The roller-type sand making machine produced by our factory is not only durable, uniform sand particles, and less crushing phenomenon, but also is the first choice for high-strength rock sands such as pebbles and quartz. The sand machine replaces a hammer for several hours. How can we further improve the production rate of the roller sand making machine and improve the sand production rate?

Adjusting the discharge granularity of the roller type sand making machine: There are wedge-shaped or gasket adjusting devices between the two rollers. The top of the wedge device is equipped with adjusting bolts. When the adjusting bolts lift the wedge upward, the wedge will move. The top of the roller is away from the fixed wheel, that is, the gap between the two rollers becomes larger, and the size of the discharged material becomes larger. When the wedge is down, the two rollers of the movable roller become smaller under the action of the compression spring, and the discharge granularity becomes smaller. The gasket device adjusts the size of the material by increasing or decreasing the number or thickness of the gasket. When the gasket is increased, the gap between the two rollers becomes larger. When the gasket is reduced, the gap between the two rollers becomes smaller and the particle size of the discharge becomes smaller. . According to different requirements, the distance between the rollers can be adjusted to produce sand with different specifications such as coarse sand, medium sand and fine sand. In addition, the following five major points must be taken into consideration when using the roller type sand making machine:

1. The viscous material can easily clog the crushing space. The clogging should be stopped in handling the clogging fault.

2. After the roll sand making machine is operated for a long time, due to the large abrasion of the roll surface, it will cause the product granularity to be too fine. At this time, attention must be paid to adjustment of the discharge port or overhaul of the equipment.

3, when the processed material contains large blocks, pay attention to large ore easily squeezed out from the crushing space to prevent injury or damage to equipment.

4, to strengthen the inspection of the equipment, the lubrication of the equipment should be on time, to maintain a good lubrication of the equipment.

5, to strengthen iron ore removal work. Non-crushed objects (bits, etc.) falling into the gap between the rollers will damage the sand making machine, causing a parking accident. Therefore, the iron removal device should be installed before the crusher.

Raymond Mill's production bottlenecks are mainly in which part?

First of all, we need to understand the production process of Raymond Mill: grinding process and winnowing process.

The production bottleneck of the grinding process is mainly the blade angle problem, the sealing problem of the roller assembly, and the wearing degree of the wearing parts.

First of all, the angle of Raymond's blade has played a vital role, and some Raymond Mill manufacturers are apt to ignore this problem. Raymond's blade lift position is high and low, making the blade shovel The starting material cannot be accurately delivered to the grinding position, which greatly affects the production of Raymond Mill.

Secondly, the sealing problem of the roller assembly, which is directly related to the use of Raymond Mill manufacturers can normally use the problem of normal production. If Raymond Grinding Roller Assembly cannot effectively seal, then the inside of the assembly is very easy to enter into powder. After the powder is poured in, the total achievement of Raymond Mill is easy to be broken, and often it will be broken, which will bring about normal production. Serious trouble. The latest assembly developed by SBM Machinery adopts the principle similar to the mechanical seal, adopts multiple oil seals and progressive zero-gap sealing, and the effect is unanimously recognized by the society.

The last is the degree of wear of the wearing parts. If the wearing parts (ie grinding rollers and grinding rings) are made of ordinary carbon steel, then they will wear off quickly, which will increase the production cost of Raymond Mill manufacturers. The maintenance rate will also increase. It is recommended that customers use high-manganese steel Raymond mill rolls and grinding rings.

Which type of sand making equipment is suitable for light calcium carbonate crushing? Light calcium carbonate is produced by chemical processing. Because its settling volume (2.4-2.8 mL/g) is greater than mechanically produced ground calcium carbonate sediment (1.1-1.9 mL/g), it is referred to as light calcium carbonate. SBM's new type of sand making machine is a new type of high efficiency, widely used in the crushing and crushing of various raw materials such as rock, ore, cement clinker, and refractory materials. The sand making machine is also ideal for the crushing of raw materials in the light calcium carbonate processing industry.

Light calcium carbonate is produced by calcining limestone and other raw material segments to produce lime (mainly composed of calcium oxide) and carbon dioxide, and then adding water to digest lime to produce lime milk (mainly composed of calcium hydroxide), and then adding carbon dioxide to carbonized lime milk to generate calcium carbonate. Precipitation, and finally by dehydration, drying and crushed prepared, or first with sodium carbonate and calcium chloride metathesis reaction to produce calcium carbonate precipitate, and then by dehydration, drying and crushed prepared. Among them, the sand making equipment plays an important role in the entire light calcium carbonate processing. The sand making machine has characteristics of small particle size, uniform particle size, large production capacity, long hammer life, small supporting power, variable three-stage crushing, secondary crushing, simplified process, simple structure, convenient maintenance and stable operation. The use of the sand making equipment to crush finely divided calcium carbonate precipitates is ideal. The fineness of the sand making machine equipment can reach 5mm or less, which is very favorable for the industry efficiency of the calcium carbonate milling production line.

In addition, SBM's new sand making machine equipment has many advantages such as environmental protection and energy saving. The sand making equipment works with low noise and no pollution. The unique air self-circulation system greatly reduces the amount of exhaust air, reduces dust, and is environmentally friendly. The sand making equipment is reserved and suitable for installing a variety of dust removal equipment. It is very beneficial to the entire calcium carbonate milling production line industry to achieve energy conservation and emission reduction.

Industrial milling can not be separated from the deep processing of Raymond Mill, especially in some fine powder processing areas. The following SBM Raymond Machine Factory summarizes some common sense and hopes to help everyone. In the case of higher moisture, in the ultra-fine grinding production line, the dryer is connected by using a screw conveyor, and there is a special material that needs to be added to a special device for mechanical production.

In Raymond Mill operation should pay attention to the following aspects: Raymond Mill raw material concentration should be appropriate, the actual operation should pay attention to the adjustment of water, in the country for the mine industry, Raymond Mill industry will High-speed growth trend appears; when closed-circuit grinding, proper cyclic load should be provided. In a certain range, the Raymond Mill's productivity increases with the increase of the sand return ratio. Under the condition of a large return to sand ratio, the fluctuation of the classification efficiency has little effect on the mill productivity. Therefore, it is beneficial to increase the sand return ratio properly. Usually, the amount of sand returned by a rod mill is smaller than that of a ball mill because of the small gap in the volume of the medium of the rod mill.

Raymond Mill speed should be controlled properly. At slightly higher speeds, higher productivity can be achieved. However, because the relative motion is intensified and the grinding medium has a large amount of energy, it is easy to make the material crushed. Ultra-fine grinding involves a wide range of industries, and the frequency of use in various industries is also very high, such as mining machinery industry, chemical metallurgy industry and industrial milling industry.

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