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    Release date£º2018/5/25
    For a long time, the dust problem has been plagued by dry sand production enterprises, and it will also harm workers' health. At the moment of ecological environmental protection and high quality development as the key point of sand and stone industry transformation and upgrading, dust control in sand and stone factories has become a big pain point. In recent years, dust control has become one of the important parts of green development of sand and stone industry. A brief introduction to the production line of sand and gravel aggregate Gravel aggregate production line is mainly divided into gravel production line and machine-made sand production line. The gravel production line is mainly composed of jaw crusher, cone crusher, impact crusher, vibrating screen and some conveying equipment. The machine sand production line is divided into a wet sand production line and a dry sand production line. The former is mainly composed of sand machine, vibrating screen, sand washing machine, sand suction machine, filter press, sewage treatment pool and a number of conveying equipment. The latter is made up of sand making machine, vibrating screen, wind separator, dust collector, hoist, fine powder tank and a number of conveying equipment. Two. The main pollution source of the sand stone aggregate production line The main pollution of sandstone aggregate production line is sewage sludge and dust. The main pollution of the lithotripsy field is the dust produced when the equipment works. The previous practice is generally to spray water and dust, and often produce a large amount of sewage and sludge. Because the dry process sand system is not used to the requirements of the sand and gravel aggregate, the dust can also be collected through the dust removal. The added value of stone phase and composition will also be different, even far exceeding the market economic value of aggregate. The main pollution of manufactured sand production line is sewage sludge and dry system dust. The sewage sludge produced by wet process system has greatly damaged the environment and has been phased out. The dry sand making system does not produce sewage sludge, but is collected and sent to the fine powder tank by the powder remover and the excess stone powder and equipment dust in the machine-made sand. This will also be invaluable because of the different added value of fine powders and ingredients. Three. Selection of dust remover for crushed stone production line The dust collecting points of sandstone aggregate yard mainly include Hubei crusher, cone crusher, impact crusher, sand making machine, vibrating screen and so on. In view of these dust spots. We can calculate the required air volume and the size and quantity of the dust remover according to the technical position of the dust point. The collected fines are sent to a fine powder tank after being collected by conveying equipment. Four. Selection of dust remover for dry sand production line The main points of the dry method sand system are sand making machines and vibrating screens. In view of the necessity of dust removal in dry sand making system, we specially designed a special equipment suitable for this system, that is, powder remover. The so-called "powder removal machine", which is known as the "energy saving dry powder removal system", includes several characteristics: "energy saving", "dry method" and "powder removal". This system can not only control the powder content in the machine-made sand, but also realize the dust control on the spot dust. Five. The correct selection of the dust collector The selection of dust collector is composed of air volume, total pressure, filtration area, filtration speed and cleaning method. Considering that the dust control system has only social effect and no economic effect to the owners, it will also increase the production cost of finished aggregate. Many manufacturers of dust catcher will do their best by changing the internal structure of the dust collector, reducing the cost of the dust collector, and winning the market through price advantage. Such a practice is very undesirable. Purchasing equipment should not compare the price blindly, but mainly the quality of the dust catching products. Dust removal is a system integration, one part of the bad will affect the normal operation of the whole system, we know that the source of dust, can also be well eliminated, to eliminate hidden dangers. In recent years, bag type dust removal has become the development direction of particle collection technology. Bag type dust removal equipment will have a wider space for development. The Ministry of land and resources put forward the general goal of "realizing the standard of green mine by 2020 and the management of small mine enterprises according to the standard of green mine and mountain standard". If the rich think that the gravel aggregate should realize the green mine, we must make the dust removal and environmental protection work practical and specialized. Only in this way can we achieve healthy development. The future of the aggregate production industry will become better and better.
    Release date£º2018/5/23
    CCTV CCTV - 13 news channel reported in October 30th: Beijing construction refuse to change the body of asphalt material: Beijing construction workers Chaoyang District Sun River waste recycled aggregate is made from many steps, such as brick and tile and other construction waste through crushing, screening and other steps, can be used to make floor tiles, road materials and other products, not only big. The cost of garbage disposal is reduced and resources are saved. The dust disposal and collection in the crushing and screening process are collected by the pulse bag filter produced by the salt rich company. The dust removal equipment on this project has all passed environmental protection testing and fully meets the requirements of environmental protection in Beijing area. With the construction of the construction of the Beijing construction industry group, construction of the first highway from the construction waste material to the construction of the report, our dedusting equipment is displayed in the CCTV news reports, also displayed in front of the people of our country.
    Release date£º2018/5/23
    The compound separator is used in the sand production line of Mangshan reservoir in Hunan. The Mangshan reservoir is located in Yizhang County, Chenzhou City, Hunan province. In April 18th, our TS 1250 sand and gravel composite separator was successfully tested. The technical features of the compound powder separator are as follows: The 1. separation principle is advanced: the product has a variety of classification systems. According to the characteristics of sand and stone, the aero aerodynamics analysis method is used to optimize the design of the material flow field, which makes the equipment running resistance significantly reduced, the separation efficiency is high, and the energy saving and reducing consumption is very obvious. It is superior to the traditional washing sand gravel separation process. 2. the V shaped scattered grading zone has simple structure, few consumables, no electric dispersion device, small pressure loss, stable operation and low power consumption. The accuracy of the 3. separation is high. In the pulverized machine, the "eddy current rectifier" is used to obtain the national patent. The air flow in the rectifier is not rotated with the rotor rising only. The material is repeatedly cleaned in the separation area, and the precision of the classification is high. The 4. operation is simple. The cage rotor adopts variable frequency stepless speed regulation. The adjustment range is large, the adjustment is convenient, the sensitive and reliable. 5. the classification efficiency is high. The "V" type powder separation zone is provided with a multi-layer dispersion and grading board, which is repeatedly dispersed and blown away, so that almost no fine powder is discharged from the coarse powder. In the classification zone, the fine powder in the medium is blown away again, and the fine powder content in the medium is greatly reduced. The diversion plate of the cage rotor is added, and the classification is more accurate and effective. 6. wear parts maintenance workload is small, long life. The main parts of the pulverized coal separator are imported wear-resistant steel plates, which effectively improves the service life. The whole machine has a dynamic balance correction and runs smoothly in the full speed range. 7. main shaft bearing seal adopts new design scheme, which effectively solves two important problems of bearing ash and lubricating oil leakage, and effectively prolongs the life of bearing. 8. when designing the base of the pulverized machine, the mechanical vibration damping principle is adopted to make the vibration frequency of the sorting machine base the natural frequency of the sorting machine not to be the integer times, and fundamentally solves the problem of the resonance of the long perplex separator. The double interlocking wind valve is used in 9. coarse sand pipe, medium fine sand pipe and fine sand tube, which greatly reduces the air leakage rate of the system and overcomes the defects of the dust in the operation of the former pulverized machine. 10. the system adopts double interlocking air valve and internal circulating air, which effectively reduces the leakage of the system and reduces the dust pollution in operation.  
    Release date£º2018/5/23
    The production line equipment of the calcium hydroxide powder production line includes the jaw crusher, the screw conveyor, the digester, the pulverized machine and the dust collector. However, the quality of the production of calcium hydroxide products is mainly determined by two equipment, that is, the digester and the powder separator. The digestive system determines the degree of digestion and decomposition of the raw materials, all of which are known to all, but many people do not understand the use of the powder selection machine, and the following will be introduced. In the process of production of calcium hydroxide, the mixed impurity is almost inevitable. In order to improve the quality and purity of calcium hydroxide products, it is necessary to select the qualified powder. This qualification, in addition to the requirement of purity, and the fineness of the powder should be distinguished.  Although calcium hydroxide products are very small powder, but there are many parameters, which is based on these parameters, designed the classifier. The main function of the classifier is to purify products and screen out high-quality calcium hydroxide products under different conditions. Calcium hydroxide powder separator also determines the quality of product quality, can better improve the quality of finished products, the following emphasis on its advantages and reasons for analysis. First: the equipment process is advanced, the structure is reasonable, the core components of the calcium hydroxide powder separator are more, some parts of the process are more complex and the requirements of the production link are very strict, in order to better ensure the quality of the equipment and improve the term of use. Second: strong supporting and flexible, calcium hydroxide powder separator can be widely used in lime, mineral powder, metallurgy, cement, building materials, mines and so on. It can be used in a number of production lines, and the effect is remarkable, thus becoming one of the best selling products this year. Calcium hydroxide powder pulverized machine is a new type of equipment developed on the basis of the original equipment. The performance characteristics of the machine are mainly in the high efficiency of classification, the large amount of powder and the narrow size of the product. Main technical features: improve the production of grinding system, reduce the energy consumption of products, improve the quality of products, simple operation, small maintenance, small equipment volume, simple process.  
    Release date£º2018/5/23
    The bag dust collector of Beijing Tongzhou District miscellaneous fill resource disposal project for a large state-owned enterprise has been completed the installation debugging and on-line operation at last, and the dust removal efficiency is very high, so that the whole production site does not appear general production. The dust of the production site, harmful to the health of the staff environment, the environment is beautiful, clean air, add salt rich blue for the sky of Beijing, for the blue sky plan for the motherland has contributed to the strength of the rich.  
    Release date£º2018/5/23
    Our company and Xuzhou Zhongyuan Building Materials Co., Ltd. signed two sets of grey separation system between September 5, 2016 and October 16th. The installation, commissioning and trial production of the equipment were carried out. In the process of trial production, the pulverized coal pulverized machine was running normally. All the indexes and output of the white ash after the separation were up to the standard. Thank COSCO for its trust and support for our company.
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