Beijing Shengnuo Xingye Mining Technology Co., Ltd. relies on the unique geographical and resource advantages of the capital of Beijing, and is responsible for the development of the group's Beijing and international markets. pc ceramic filter draws on the international advanced ceramic filtration technology, relying on the domestic Tsinghua University and other dozen of scientific research institutions of the technical strength, combined with the nature of the material and process conditions of various filtration materials, the development of the third-generation ceramic filter with excellent technical performance and a wide range of applications, The third generation of ceramic filter and ceramic filter plate products with wide range of applications have been popularized and applied in more than a hundred enterprises all over the country, and the application areas involve the filtration of concentrates and tailings of ultrafine iron, copper, lead, zinc, iron, silver, gold, sulfur and other metal beneficiation plants, as well as non-metallic minerals such as phosphorus, fluorite, quartz and other non-metallic minerals, which have achieved remarkable economic and social benefits.
PC Series Ceramic Filter
One, ceramic filter products of excellent quality and advanced technical performance
The ceramic filter developed by foreign countries was popularized and applied on a large scale in the mid-1990s of the last century, and at that time, for the ceramic filter and the ceramic filter plate, it was not perfect in terms of quality and performance, and our factory, in view of the nature of the materials and production process of the materials of the metal ore dressing, relying on the Tsinghua University, has made a good use of the ceramic filter and the ceramic filter plate to improve the quality and performance. Production process, relying on Tsinghua University and other domestic famous scientific research institutions, ceramic filter plate and ceramic filter system optimization, to improve its technology to the level of the second generation, the specific measures are as follows:
1, the improvement of ceramic filter plate
From the formula, the selection of high hardness, good quality, hydrophilic α-A12O3 materials as the main material In the formulation, the selection of high active ingredient, stable physical and chemical properties of clay materials as auxiliary materials; sintering process using high temperature and small temperature difference sintering, the production of good strength, easy to clean and regenerate the filter plate, high production efficiency, long service life. After Fushun Hongtoushan copper mine, Sichuan Huili lead-zinc mine, Jiangsu Weigang iron ore mine, Ansteel Maoyang Mining Company, Shandong Lunan Mining Company, Chengde Baotong Mining and other units of the comparative application to prove that the improved ceramic filter plate technical performance is better than the market at home and abroad similar products.
2, the improvement of gas-liquid distribution system
Because of the high density of metal ore materials, the cake adsorbed on the surface of the filter plate strong adhesion, scraping resistance, the filter plate, scraper is easy to damage; at the same time, due to the high hardness of metal ore materials, the inhalation of material particles into the capillary holes is not easy to wash away, the production process of backwashing is not complete, the work of a cycle of the acid, ultrasonic cleaning effect of the combined The effect of acid washing and ultrasonic cleaning after one cycle of work is not ideal, and over time, the filter plate is seriously clogged, preventing normal production and shortening the service life of the filter plate.
In order to solve this problem, we have optimized the internal and external structure of the gas-liquid distributing device through repeated experiments and researches, and at the same time, we have added a pre-dispersing mechanism in the distributing system, which makes the filter cake and scraper loose before they come into contact with each other, and reduces the wear and tear of the cake and the scraper, and scrapes the material more thoroughly, which improves the effect of the backwashing, improves the efficiency of the equipment, and lengthens the service life of the filter plate and the scraper.
In addition to this, we have added a distribution valve on the suction-drying pipeline, which is convenient for users to adjust the output and cake moisture to meet their needs.
3, the mechanical structure of the improvement
Metal ore beneficiation process varies greatly, the nature of the material is very different, in order to improve the adaptability of ceramic filter, we in the design of the product to strengthen the mixing, rollers, frame and other components of the strength and the relevant power to match, so as to adapt to the filtration needs of a variety of materials.
4. Improvement of pipeline system
The first generation of ceramic filter adopts a pipeline, which is long and has a large resistance to backwash water flow, affecting the effect of backwash. At the same time, the failure of the check valve is easy to cause slurry backflow, blocking the entire piping system, affecting normal production. To address this problem, we changed one pipeline to two pipelines, shortened the length of the backwash pipeline to improve the backwash effect, and set up a pressure reducing valve and safety valve on the pipeline to improve the safety of equipment operation.
5. Improvement of automatic control system
The first generation of ceramic filter adopts ultrasonic level meter, the fluctuation of slurry level, water vapor will make it produce false action, we use radio frequency level meter to replace the ultrasonic level meter, and at the same time, we choose GE or Schneider PLC, and use Schneider and Siemens products for electrical components, so that the whole control system to strengthen the anti-jamming ability, and the equipment operation is more stable and reliable. Equipment operation is more stable and reliable.
After the systematic improvement and overall optimization of the equipment, the performance of the second generation of ceramic filter has been qualitatively upgraded, and it has been fully adapted to the filtration of copper, lead, zinc, iron, silver, gold, sulfur, and other materials of the plant, and it has been verified by the production practice that the equipment operates reliably and has excellent technical indexes. So far, there are Fushun Hongtoushan copper mine, Sichuan Huili lead-zinc mine, Wuhan Iron and Steel Company, Jiangsu Weigang Iron Mine, Chengde Baotong Mining and other users in the use of other manufacturers of the first generation of ceramic filters product technical indicators are not ideal, change to use my factory's products.
Two, PC ceramic filter in the black plant applications
1 Anshan Iron and Steel East Anshan Sintering Plant, the use of PC ceramic filter, the annual economic benefits of more than 30 million yuan.
East Anshan iron ore embedded in fine particle size, is the most difficult to grind and difficult to select iron ore, separation process from the flotation transformation for magnetic separation - re-election - reverse flotation process, 1.9 million tons of iron ore concentrate per year, concentrate particle size: -200 mesh accounted for 98%; concentration: 60%. The original concentration filtration process adopts three-stage concentration, the filtration equipment is 32M2 inside the consideration of 38 sets of cartridge filters, the utilization coefficient is 0.23 tons/m2 . The utilization coefficient is 0.23 tons/m2 . The water content of the filter cake is 13%, and the amount of metal lost is 30,000 tons per year, which exceeds the standard and causes serious pollution to the Liao River. After technological transformation, the filtration equipment adopts 14 sets of PC ceramic filters, the concentration process is simplified to one section of concentration, the water content of the filter cake is reduced to less than 7.8% (9.41% of the water content in the industrial test report is the indicator for processing positive flotation concentrates), and the maximum utilization coefficient is up to 1 ton/m2 . Hour (its concentrate contains starch and other flotation chemicals, viscosity, difficult to filter). It has put an end to the environmental pollution problems caused by metal loss and excessive discharge, created favorable conditions for sintering operations, and added more than 30 million yuan of economic benefits every year.
2. Shandong Laiwu Iron and Steel Group Lunan Mining Company adopts PC ceramic filter to create favorable conditions for sintering operation.
Lunan Mining Company (the former Han Wang Iron Ore) iron ore concentrate particle size -200 mesh accounted for more than 90% of the original filtration equipment for the production of iron ore concentrate water content of more than 12%, can not be directly into the pellet operation, in 2003 the expansion of the renovation project, the filtration equipment, using three 30M2 PC ceramic filters, the water content of the cake down to 7.5% or less, to meet the requirements of the pellet operation, the economic benefits are significant.
3. Tangshan Iron and Steel Group Miaogou Iron Ore Mine adopts PC ceramic filter to solve the problem of difficult filtration of iron ore concentrate.
Tanggou iron ore concentrate -325 mesh accounted for more than 75% of the filtration difficulty, high water content of the filter cake, the use of PC ceramic filter (4 sets of 30M2), the water content of the filter cake down to less than 7%, the maximum utilization coefficient of 2 tons / m2. Hour, solved the problem of difficult filtration.
4. Henan Anyang Iron and Steel Group Maoyang Mining Company adopts PC ceramic filter, saving 5 million yuan of transportation costs annually, and creating favorable conditions for sintering operations.
Mayang Mining Company iron ore mine Gukeng district and eight district iron ore concentrate filtration were used in the cartridge filtration and natural precipitation, the average cake moisture in more than 15%, because part of the iron ore concentrate using long-distance transportation mode of transportation, transportation costs waste is huge. 2003 after the adoption of PC ceramic filters (two districts ***4 sets of 30M2 ceramic filters), the cake moisture to 6.5%, utilization factor The water content of the filter cake has been reduced to 6.5%, and the utilization factor has reached 1.5 tons/m2 . Hour (concentration 50%), annual cost savings of 5 million yuan; sintering operations for the supply of iron ore concentrate moisture and other indicators also meet the requirements; users are very satisfied.
Three, PC ceramic filter in the application of non-ferrous processing plant
Tonghe Inner Mongolia Autonomous Region and mining silver and fluorite ore concentrate dewatering on the use of 10 square meters, 30 square meters of PC ceramic filter, Inner Mongolia Autonomous Region, Xingye Group polymetallic mines, respectively, the use of 30 square meters, 15 square meters, 8 square meters, 6 square meters of PC ceramic filter filtration of iron and zinc and other concentrates, the Inner Mongolia Autonomous Region, Fukyuan Mining copper concentrate The use of a 6 square meters PC ceramic filter, Shanshan Yinxing Mining lead-zinc concentrates in the Xinjiang Uygur Autonomous Region using 6 square meters, 3 square meters PC ceramic filter each one, and other processing plants have been popularized and applied. Inner Mongolia Autonomous Region Fuyuan Copper Mine original filtration process for the production of copper concentrate moisture reaches 16% or more, the low temperature in winter, resulting in copper concentrate frozen into blocks, unable to normal production and transportation, the enterprise loss is serious. After adopting our ceramic filter, the moisture of the filter cake is reduced to below 11%, and the production can be normal all year round, and the economic benefits of the enterprise are remarkable.
Before adopting PC ceramic filter, the above users generally have the problems of fine particle size and high viscosity of filter slurry, which makes filtration difficult; the original filtration process and equipment are backward, the output is small, and the moisture of filter cake is high, which is not convenient for loading and unloading and transportation; and the content of filtrate solids is high, and the loss of metal is serious, which pollutes the environment, and so on. Through the program comparison, and after bidding and purchasing our products, the original problems have been well solved, bringing significant economic and social benefits for the user.
Four, PC ceramic filter in the tailings on the application of the introduction
Return water utilization: Western Mining Group Bayannur Copper Company due to the perennial shortage of water in the area, the ore dressing plant has a greater demand for water. After the establishment of mineral processing plant through the PC ceramic filter to do the test, the recovery of tailings water to meet the water plant, so from the first plant 2 million tons / year copper ore to the three plant 2 million tons / year lead-zinc ore have been using PC ceramic filters to recover tailings water, so that the plant can be positive production. Now the usage of PC ceramic filter has increased from several sets to more than 20 sets, and the operation effect is good. Not only for the customer to solve the production of water, but also greatly reduce the cost of investing in tailings storage, the company's benefits steadily increased.
Tailings dry discharge: Hebei Tongxing Mining Company (former Shouwangfen Copper Mine) original tailings pond service life has come to the reconstruction of the tailings pond land acquisition difficulties, huge investment, easy to cause environmental pollution. After the program comparison, the use of our factory production of PC ceramic filter tailings filtration, filtered tailings sand part of the filling of the mining area, part of the building materials, not only to solve the problem of tailings discharge, but also the comprehensive utilization of mineral resources, and increase the social and economic benefits.
Environmental utilization: China Gold Group Chaoyang Erdaogou gold mine in the transformation process, the original flotation gold concentrate process to the whole mud cyanide, in terms of environmental protection on the slag containing cyanide emissions have very high requirements. In order to meet the requirements of environmental protection, the transformation of the factory selected the ceramic filter used to filter cyanide tailings. pc ceramic filter filtration filtrate water after testing, has been able to meet the requirements of environmental protection, to achieve zero pollution, benefit the community, and for the enterprise to solve a big problem.
At present, the application of PC ceramic filter on tailings has been very extensive and recognized by the majority of customers. We hope that more customers can benefit from using it, and we will be happy to provide service for you.
Fifth, the application of PC ceramic filter in non-metallic
Our PC ceramic filter also reflects good effect in filtering non-metallic minerals such as phosphorus concentrate, sulfur concentrate, fluorite concentrate, quartz ore and so on.