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The coating used in stainless steel precision casting consists mainly of silica sol. Silica sol consists mainly of silica, high-density materials, sodium dioxide, pH-adjusting substances, moving adhesives, colloidal particles, etc. The physical and chemical parameters of these materials mainly affect the strength and coating of precision casting shells. Stability.

Since it is difficult for precision foundry manufacturers to detect these physical and chemical parameters, it is necessary to strengthen supplier selection, evaluation and confirmation. On the other hand, different sizes of silica sol should be used for the surface layer and the back surface, s-830 type silica sol is used for the surface layer, and s-1430 type silica sol is used for the back surface. In precision casting production, the preparation of the coating directly affects the quality of the casting.

The coating is usually prepared by first adding a silica sol, then adding a wetting agent, adding a refractory powder to the mixture, and finally adding an antifoaming agent. In order to ensure the quality of the coating, the surface coating is a new material, the mixing time should be more than 24 hours to use, such as some new ingredients, the mixing time can be shortened to 12 hours. The mixing time of the transition layer and the back layer can be less than that of the surface coating, all of which are new paints, the mixing time can exceed 12 hours, and when the new coating is used, the mixing time can be shortened by more than half. If the coating is not used, it should be capped to prevent evaporation of water.

Iron ore is an important raw material for steel producers. Natural ore (iron ore) is gradually selected for iron after crushing, grinding, magnetic separation, flotation, and re-election. Iron ore is a mineral aggregate that contains iron elemental or iron compounds that can be economically utilized.

Iron ore

The iron ore vertical roller mill grinding production line is a set of ultra-fine grinding powder production line, and the whole production line is until the iron ore is ground into fine powder. At the same time, when the iron ore milling production line is deep processing the raw materials, it is very important to increase the value-added program. After the large pieces of iron ore are coarsely crushed and finely crushed, whether it is industrial milling or fine grinding and then selected into the magnetic separator, an ore mill is required. At present, the ore mill is rich in types and various types, and there are two types of high-pressure Raymond mills and ball mills. The specific choice should be considered in terms of the nature of the ore, the fineness of the mill, the yield, the site conditions, and the investment plan, so that the choice is appropriate. The complete equipment of iron ore milling production line includes hammer crusher, bucket elevator, storage bin, vibrating feeder, micro-grinding main machine, frequency conversion classifier, double cyclone dust collector, pulse dust removal system, high pressure fan, Air compressor, electrical control system. Iron ore milling production line can target iron ore, pulverized coal, blast furnace slag, power plant desulfurizer, boiler injection coal, white ash, feldspar, quartz, gypsum, barite, limestone, ceramics, slag, etc. High-fine powder processing of more than 280 kinds of materials in non-flammable and explosive mines, metallurgy, chemical industry, building materials and other industries with hardness less than 9.3 and humidity below 6%. The finished product has a fineness of up to 1000 mesh.

Limestone is a valuable mineral and utilization resource. It is widely distributed in China and its reserves are also very rich. Similarly, it is also an important raw material in industrial production. Limestone can be used as a building material; it can be used to produce cement; it can be used to produce high-grade paper coating; it can be used as a filler in plastics production. In addition, there are many uses.

The limestone ultrafine mill is a good equipment for grinding in modern production. However, with the continuous development of society, the demand for limestone grinding is increasing and there are strict requirements on fineness and quality. In this regard, some manufacturers have designed limestone superfine mills based on the product characteristics and chemical properties of limestone. Of course, limestone is a kind of mineral material, and it is also suitable for milling in mining mills, so this The mill is designed for the grinding of mineral materials such as limestone.

Limestone has a wide range of uses and contributes to human production and life. For this precious mineral raw material, we have to go through some special treatment before it is used, which is more convenient for us to use. Powdered limestone is convenient for mixing cement or adding ingredients. Therefore, in general industrial production, powdered limestone is used. Therefore, the market for limestone mills is relatively large.

Ordinary mills can also grind limestone mineral materials, but we have to consider a problem. Other mills are damaged quickly after grinding minerals and are not easy to clean. The limestone mill is a comprehensive mill for limestone mineral materials. The considerations are also comprehensive. We can use it with confidence, and don't worry if the mill can bear the grinding power.

The limestone superfine mill introduced by SBM has many advantages over other milling equipment. The equipment is more efficient and energy-saving than the flow mill, the agitator mill and the ball mill. The wearable parts have a long service life, and the grinding rolls and grinding rings are forged by special materials, so that the utilization degree is greatly improved. Generally, it can last for more than one year. When processing calcium carbonate and calcite, the service life can reach 2-5 years. It has high safety and reliability. Because there are no rolling bearings and no screws in the grinding chamber, there is no problem that the bearing and its seal are vulnerable. There is no problem that the screw is easy to loose and destroy the machine. Environmental protection, cleaning using pulse dust collector to capture dust, using muffler to reduce noise, environmentally friendly, clean features, therefore, we should choose limestone mill to professionally grind limestone mineral materials, I believe that the finished powder quality can also be expected.

The same as the grinding equipment, from the name alone, raymond mill and ball mill have a big difference. In addition, Raymond mill and ball mill are also very different in appearance. For example, the ball mill is made up of horizontal cylinders, feeding and discharging. The hollow shaft and the grinding head are composed of a part, the cylinder is a long cylinder, and the cylinder is provided with an abrasive body. Raymond Mill is built. What other differences are there between Raymond mills and ball mills? From the function point of view, the difference between Raymond mill and ball mill is that the powder of Raymond mill is much finer than that of the ball mill. The difference in fineness between the two mills is large, the discharge speed of the ball mill is fast, and the material after crushing The particle size is relatively coarse; after years of improvement, Raymond mill has a grinding fineness of 325 mesh for mineral raw materials. In addition, Raymond mill is mainly used for ultra-fine pulverization processing of various ores, building materials and chemical materials with Mohs hardness below 9.3 and humidity less than 6%, such as graphite, talc and kaolin. Fine powder processing of stone, limestone and other materials, the fineness of the finished product is as high as 2000 mesh, which is suitable for projects and projects with high requirements on fineness of some materials. Ball mill is mainly used for materials with Mohs hardness below 7 and humidity below 6%. It is widely used in black and non-ferrous metal processing, fertilizer processing, refractory processing and silicide manufacturing. It can dry and wet materials. Grinding, the fineness of the finished product can reach 425 mesh, which is commonly used in the beneficiation production line for the grinding of materials, preparing for the next process of the production line. Raymond mills and ball mills have their own advantages, each with its own characteristics, so the majority of users must choose the right mill equipment according to their own needs when purchasing the mill. Shanghai SBM specializes in the production of various types of mills, welcome customers to come to buy.

The jaw crusher is the first choice for the crushing of ore in the gravel production line. In the gravel production line, the jaw crusher is generally used for coarse crushing of ore. Compared with the general ore crusher, the jaw crusher can be broken. The ore is relatively hard and has a relatively large feed. Due to the harsh environment of the jaw crusher during use, the crusher manufacturer reminds the users to pay attention to it, and it is necessary to pay attention to the dust pollution problem of the jaw crusher.

In order to reduce the dust caused by air leakage from the crusher casing, in actual production, when the material is dry, water is often poured at the inlet of the crusher. In fact, this situation is wrong, which will aggravate the bag filter of the jaw crusher. The filter bag and the feeder are clogged.

During the falling process of the ore and other materials on the belt conveyor, the air enters the sealed dust hood together with the material, and the dust-containing gas diffuses outside the cover through the gaps and holes in the cover wall. In addition, due to the improper setting of the dust removal point at the corner of the belt conveyor The dust collector has almost no effect on the dust of the lower belt conveyor regardless of the opening and closing. Since the operation of the jaw crusher, the dust collector has not been operated, and the lower belt conveyor has been in the process of dust pollution.

When the crushing material of the crusher machine has a large humidity, the elbow portion is easily worn by the dust and the dust particles that are blocked into the dust collector are thicker than the broken dry material, and the bag type dust remover is easy to paste the bag, and the feeder is easy to block. As a result, the ventilation resistance of the bag filter is greatly increased, and the ventilation capacity is lowered, resulting in wear of the jaw crusher.

At present, the stone sand making machine existing on the market are roughly divided into two types, one is a conventional fixed sand making machine, and the other is a relatively new movable sand making machine. More efficient, it is recommended to use mobile sand making machines here, the specific introduction is as follows:

1. The installation of the integrated unit eliminates the complicated installation of the infrastructure of the separate components, and reduces the consumption of materials and working hours;

2. This equipment has multiple functions, which can complete the sand making operation at one time, saving trouble and worry;

3. The mobile sand making machine has high flexibility, and can be directly opened to the site to complete the material sand making operation, avoiding the material to be transported back and forth, and at the same time, greatly improving the working efficiency of the equipment.

Therefore, it is necessary to say that the machine used for stone making is highly efficient. There is no doubt that this mobile sand making machine is definitely a device. Shizi mobile sand making machine is also divided into large and small models. The larger the model, the higher the price. It is necessary to know that the height mentioned here is not as simple as a few hundred blocks. It is even higher than tens of thousands, hundreds of thousands and millions. All of them are available, so it is recommended that customers choose a reasonable choice when purchasing such equipment.

Shanghai SBM: A solution to the problem of slag vertical grinding noise pollution

Noise pollution not only affects people's work mood, but also affects people's health. The friends who work in the slag vertical mill cement factory are deeply aware of the point. Although the state has regulations on the noise of grinding equipment such as slag vertical mill, These problems are often difficult to control. How to reduce the noise pollution of slag vertical roller mill has become a place for enterprises to pay attention to.

Shanghai SBM gives relevant experience based on its own experience.

First, look for the cause. In the actual work of the slag vertical grinding equipment, there are many reasons for the noise of the equipment. Therefore, for the user to completely solve the equipment noise problem, it is necessary to first find out the specific cause of the noise generated by the equipment, and carry out targeted Solve, this is more effective in solving the problem of equipment noise. The noise problem generated during the production of slag vertical mill has a great relationship with the equipment's own technology and production process. This is the main reason for the noise generated by the equipment. This requires perfect equipment production technology to fundamentally eliminate noise.

Secondly, during the use of equipment, the slag vertical mill cement plant did not do the corresponding maintenance work. Everyone knows that maintenance can extend the service life of the equipment to a certain extent and improve the production efficiency of the equipment. It is not known that good long-term maintenance work can reduce the noise during the production of the equipment. During the use of slag vertical mill equipment, the user must periodically inspect the various components of the equipment, regularly clean the equipment, and tighten the fasteners such as loose bolts to reduce the noise during the production of the equipment.

After that, the hardness and humidity of the material are guaranteed to be within the crushing range of the slag vertical grinding equipment. It turns out that if the material crushed by the equipment is relatively hard, it will not only accelerate the wear of the equipment, but also cause the equipment to cause a lot of vibration during the crushing process, which will cause the equipment to generate noise. For materials with relatively high humidity, it will block the equipment. The equipment causes noise due to vibration.

In summary, there are many reasons for the noise generated by slag vertical grinding. Of course, there are solutions to the cause. It is believed that with the development of technology, noise pollution will not become a problem.

When the construction waste crusher breaks down the construction waste, we not only require it to process the construction waste smoothly, but also reduce the environmental pollution. At the same time, it also requires the efficiency of its production. Generally speaking, its efficiency is in addition to external factors. In addition to the relationship, it is also related to its own factors. In addition to the performance and quality of the equipment, the so-called self-factors also include the setting of its parameters. Here is an introduction to the effect of the speed of the rotation on the efficiency.

Generally speaking, the rotational speed of the construction waste crusher can be changed within a certain range. The range of this change is different according to different types of equipment. Once a certain type of machine is selected, the range of the rotational speed is determined. In production, we must pay attention to the excessive or too small speed, which will affect the efficiency of the equipment, so it can not exceed the scope of this adjustment. If the speed is large, the material entering the interior of the construction waste crusher will be pulverized. It is also the case that it is broken again after being broken without being discharged in time. In this case, the efficiency of the machine will decrease. If the rotation speed is small, the material is broken slowly, and the efficiency will drop.

After we understand the relationship between the efficiency and speed of the construction waste crusher, in the actual work, the speed can be adjusted according to the production demand. When adjusting, there are two problems to be noted: 1) The scope of adjustment cannot be Exceeding the scope specified by the equipment; 2) When adjusting, it must be based on the requirements of production, and at the same time take into account the requirements of the quality of the finished product; after these aspects are completed, adjustment can be made, and the adjustment cannot be carried out at will, usually during adjustment. It is important to note that other parameters should be matched to ensure smooth operation and complete the production of the equipment.

The article mainly introduces the influence of the speed of construction waste crusher on efficiency. The article not only gives detailed analysis of the process of speed impact on efficiency, but also gives the problems that should be paid attention to when the speed is adjusted. In actual work. For the adjustment of the speed, even for the adjustment of other parameters inside the equipment, it must be carried out according to the production requirements, and at the same time pay attention to the matching with other parameters, so as to ensure the reasonable degree of cooperation, and then complete the production process.

For the investment of construction waste crusher, we hope to choose equipment with good quality and excellent performance, but the choice of this equipment also needs to consider many reference factors, such as price, market evaluation, manufacturer reputation, etc., different customers. When choosing these different devices, the reference standards are different. Some customers will choose according to market evaluation. Is this method reliable?

Market evaluation is also the feedback of customers. It is relatively true. For example, when we buy electrical appliances or clothes, we choose according to the big brands with good reviews on the market, so we are building When a large-scale mining equipment such as a garbage crusher is selected, some people use a similar method, but this method is not feasible. Let us introduce the reason for this phenomenon.

Because the construction waste crusher is a production equipment, when it is working, depending on the production requirements, different models can be selected to complete the material processing. In the process of production, if the selected model is unreasonable, then It will cause the efficiency of production to reach the customer's demand. In addition, because different types of equipment work, the processing capacity is different. If the selected model does not meet the production requirements, the equipment wear will also increase. At work, not only is the efficiency low, but also the phenomenon of frequent failures.

Therefore, when selecting a construction waste crusher, market evaluation is important, but more important is whether the equipment is suitable for the needs of its own project. Generally speaking, when purchasing, factors that need reference are not included in the market evaluation. It also includes the demand for capacity, the nature of the material, the size of the manufacturer, etc., and comprehensive consideration can be used to purchase good equipment.

The article mainly introduces the question of whether the construction waste crusher is feasible according to market evaluation. The above analysis of this problem is more detailed, and the answer is not feasible, because different equipments have different application scopes, only suitable for themselves. Equipment for production needs can be a good choice.

There are many kinds of fluorite powders. It is common to use fluorite mill to process fluorite. Fluorite mill is widely used in the field of mining. How to choose fluorite mill in the production process? According to the required fineness, choose the appropriate type of milling equipment, and adjust the fineness of the grinding material and the output of the grinding demand. After understanding your own needs, you can select the required ones. Milling equipment.

The fluorite crusher is good at initial breakage and is widely used in many industries such as mining, building materials, metallurgy, etc. The application of concrete mixing station, sand and gravel yard, power plant desulfurization and quartz sand is more. The stone impact crusher has large crushing efficiency and high crushing efficiency. The shape of the finished product is cubic and selectively crushable. It is suitable for a variety of compressive strength ore. It has high compressive strength for limestone, river pebble and granite. For better applicability, you can also choose the right crusher according to the different characteristics of your own materials.

The fluorite mill production line has a full set of production milling equipment, a full set of equipment such as Colliercault impact crusher, jaw crusher, high pressure mill, Raymond mill, belt conveyor, etc. A variety of configuration solutions such as production line, marble grinding machine, river pebble sand production line, etc., a group of professional technology R & D team, professional focus on the manufacture and research and development of green products, with "quality products, perfect After-sales service& rdquo; sincere treatment of every customer

At present, there are many manufacturers of grinding machines and crushers in China. They should try to choose large and powerful manufacturers. The strong manufacturers have good after-sales and technology guarantees. Shanghai Collier fluorite mill and There are many models of crushers, and we have rich experience in crushing and grinding ore. Shanghai Corerick has strong strength and its products are sold to many countries at home and abroad. It has good reputation and stable after-sales guarantee. It is a milling production line. Manufacturer.

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