The company's products mainly include box filter press, plate and frame filter press, diaphragm automatic filter press, quick-open diaphragm filter press, and polypropylene filter press. The filter press is an important equipment for recycling and washing closed circuit in the coal slurry plant of the coal preparation plant, which promotes the continuous improvement and update of the filter press, and a new type of high-efficiency filter press emerges. With the rapid development of China's mechanized coal mining technology, the coal preparation plant is getting bigger and bigger, the coal quality is getting worse, and the problem of increased coal sludge is coming. The coal slurry water treatment and cutting equipment filter press has put forward higher requirements. Impregnated Activated Carbon,Anthracite Column Activated Carbon,Denitration Pellet Carbon,Coal Based Column Activated Carbon NINGXIA TIANFU ACTIVATED CARBON CO.,LTD , https://www.tjfyhxt.com
1. Quick-open diaphragm filter press The earliest developed fast-opening diaphragm filter press in China was put on the market in the late 1990s. It is a KM type fast diaphragm filter press. It uses filter media to separate discrete insoluble solid particles from liquid. Separate pressure filter equipment. Compared with the conventional box filter press, the advantages are as follows:
(1) Adopting multi-port feeding, the feeding speed is fast, the cloth is even, and the cake effect is good;
(2) Adopting the main and slave multi-cylinder synchronous pressing and control technology, the filter plate is evenly and forcefully applied, and the edge sealing property is good. When high pressure, large flow rate and rapid slurry feeding, the material is not sprayed;
(3) Using a unique hydraulic drive, group opening and closing, ring chain pull-open filter plate set and filter cloth misalignment unloading mechanism to achieve rapid unloading; secondary diaphragm press dewatering process, filter cake moisture is low;
(4) The filtrate flow detection device was developed, and the filter chamber was well filled, which realized the automation of the whole process of the filter press system.
Second, the basic filter mechanism of the quick-opening dry filter press consists of a hot-pressed diaphragm filter plate and a drying plate placed at intervals, and the mechanical filtration of the suspension and the cake is completed in the filter chamber; then the hot-pressure filtration drying and dehydration stage is entered. That is, a fluid heat medium (steam or heat transfer oil) is introduced into the drying plate, and the liquid discharge channel is evacuated, and the filter cake is mechanically squeezed by a diaphragm, so that the capillary water of the filter cake near the drying plate is evaporated by conduction due to heat in a short time. The generated steam is rapidly expanded to drive the capillary water of the filter cake farther from the drying plate to emerge from the surface of the filter cake in a liquid form and removed.
According to the relationship between moisture and calorific value in coal, for every 1% reduction in moisture, the calorific value can be increased by 4118kJ and the moisture in the slime is reduced, and storage in the warehouse will not block the warehouse, thus eliminating the problem of environmental pollution in open storage. The quick-opening dry filter press condenses the two operations of mechanical filtration and thermal drying into one, which not only realizes deep dewatering of flotation clean coal, but also increases the value of coal slime products from coal preparation by-products into commercial thermal coal. Since the price of thermal coal is 3-4 times that of slime, the use of this equipment can bring significant economic benefits to the company. In recent years, the coal slurry production in coal preparation plants is getting larger and larger. The quick-opening type dry filter press just caters to this market gap and has broad development prospects. It is a development direction of coal quick-opening filter press in the future.
Third, the pressure filter filter press At present, the pressure filtration technology is still developing and exploring. For example, drying technology can be incorporated into the pressure filtration technology to make the discharge moisture lower. In addition, in the case of constant volume heating, the pressure inside the container will naturally rise, so that the air volume and wind pressure required by the existing pressure filter will be reduced; from another point of view, after the drying technology is incorporated into the pressure filtration technology, Increase energy consumption. With the further development of pressure filtration technology, this vision may become a reality in the near future. The filter press is an important equipment for recycling and washing closed circuit in the coal slurry plant of the coal preparation plant, which promotes the continuous improvement and update of the filter press, and a new type of high-efficiency filter press emerges. With the rapid development of China's mechanized coal mining technology, the coal preparation plant is getting bigger and bigger, the coal quality is getting worse, and the problem of increased coal sludge is coming. The coal slurry water treatment and cutting equipment filter press has put forward higher requirements.
1. Quick-open diaphragm filter press The earliest developed fast-opening diaphragm filter press in China was put on the market in the late 1990s. It is a KM type fast diaphragm filter press. It uses filter media to separate discrete insoluble solid particles from liquid. Separate pressure filter equipment. Compared with the conventional box filter press, the advantages are as follows:
(1) Adopting multi-port feeding, the feeding speed is fast, the cloth is even, and the cake effect is good;
(2) Adopting the main and slave multi-cylinder synchronous pressing and control technology, the filter plate is evenly and forcefully applied, and the edge sealing property is good. When high pressure, large flow rate and rapid slurry feeding, the material is not sprayed;
(3) Using a unique hydraulic drive, group opening and closing, ring chain pull-open filter plate set and filter cloth misalignment unloading mechanism to achieve rapid unloading; secondary diaphragm press dewatering process, filter cake moisture is low;
(4) The filtrate flow detection device was developed, and the filter chamber was well filled, which realized the automation of the whole process of the filter press system.
Second, the basic filter mechanism of the quick-opening dry filter press consists of a hot-pressed diaphragm filter plate and a drying plate placed at intervals, and the mechanical filtration of the suspension and the cake is completed in the filter chamber; then the hot-pressure filtration drying and dehydration stage is entered. That is, a fluid heat medium (steam or heat transfer oil) is introduced into the drying plate, and the liquid discharge channel is evacuated, and the filter cake is mechanically squeezed by a diaphragm, so that the capillary water of the filter cake near the drying plate is evaporated by conduction due to heat in a short time. The generated steam is rapidly expanded to drive the capillary water of the filter cake farther from the drying plate to emerge from the surface of the filter cake in a liquid form and removed.
According to the relationship between moisture and calorific value in coal, for every 1% reduction in moisture, the calorific value can be increased by 4118kJ and the moisture in the slime is reduced, and storage in the warehouse will not block the warehouse, thus eliminating the problem of environmental pollution in open storage. The quick-opening dry filter press condenses the two operations of mechanical filtration and thermal drying into one, which not only realizes deep dewatering of flotation clean coal, but also increases the value of coal slime products from coal preparation by-products into commercial thermal coal. Since the price of thermal coal is 3-4 times that of slime, the use of this equipment can bring significant economic benefits to the company. In recent years, the coal slurry production in coal preparation plants is getting larger and larger. The quick-opening type dry filter press just caters to this market gap and has broad development prospects. It is a development direction of coal quick-opening filter press in the future.
Third, the pressure filter filter press At present, the pressure filtration technology is still developing and exploring. For example, drying technology can be incorporated into the pressure filtration technology to make the discharge moisture lower. In addition, in the case of constant volume heating, the pressure inside the container will naturally rise, so that the air volume and wind pressure required by the existing pressure filter will be reduced; from another point of view, after the drying technology is incorporated into the pressure filtration technology, Increase energy consumption. With the further development of pressure filtration technology, this vision may become a reality in the near future. Http://news.chinawj.com.cn 
Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn