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Application of Pulverized Coal Pelletizing Press Products in Boilers

Dongfang Pulverized Coal Ball Press : At present, the combustion methods of fuel in the furnace can be divided into three types: stratified combustion, suspended combustion, and boiling hunting combustion. With the development of industry. Boilers are increasingly widely used in all sectors of modern industry. From the perspective of large volume and wide area, in various industries except electricity. The main operation is small and medium-sized low-pressure boilers, of which the stratified combustion method is more common. The stratified combustion method is divided into: the fuel layer does not move, and the fuel layer moves on the furnace. The fuel layer and the grate move together. Suspension combustion and simmering combustion, except for using oil and gas (the latter uses coal), solid coal should be crushed into particles of a certain size, or particulates, and briquettes should not be used. The above-mentioned several combustion methods, especially the stratified combustion method, are more serious in the waste of coal and the dyeing environment. For this reason, some European and American countries. In addition to the use of advanced boilers, briquette boilers have been used in boilers before the 1950s. The following factors should be considered.
1. Compressive strength: Because its material layer is not as good as blast furnace, iron furnace, gas furnace, the strength can be slightly lower. However, it burns under external force such as strong blowing, coal addition and collision friction on the grate. Still need to have some compressive strength.
2. In order to keep the output and heat supply of the boiler stable, the coal used in the boiler should be easy to catch fire. Therefore, the volatile matter in the coal is 15-20%. But it has a great relationship with the furnace type. For example: The boiler hearth contains a grate, which has a small status, and the heating surface is close to the hearth. Do not use bituminous coal that has too many pipe objects and burns too fast. For example, if the boiler hearth is large, there are fire bricks in the middle to make the air If you have the power, you should use bituminous coal with large volatile content. This should be paid attention to power coal blending and briquette coal blending.
3. Different coals have different physical properties for forming coke. For example, non-coking coal has powdery coke; weakly coking coal has loose coke; strong coking coal has hard coke. Therefore, in a layer-fired furnace, when coal is burned, non-coke coal is liable to form coke, which is blown away by the wind and taken away by the flue gas. At the same time, powdery coke is also easily dropped into the ash pit from the grate hole; Because coking coal will form a solid coke block, the porous material piled up by loose coal disappears, and the internal particles of the coke block are difficult to contact with the air. It is difficult to burn, and incomplete combustion is caused due to the poor permeability of the coal seam. The coke of the weakly coked coal is loose, and it is easy to be pulverized once it is stirred, and it will also affect the air permeability and lead to incomplete combustion. There are two types of slag formed when coal is burned in bulk (Note: the above is coke). One type is hard slag, which is formed by melting mountain ash, so small pieces of slag are formed and fall into the ash bucket (pit); the other is soft slag, which is softened into a molten state and left on the grate When the temperature decreases, it becomes a lumpy.
Zhengzhou Dongfang Heavy Machinery Co., Ltd. specializes in the production of ball presses, briquette ball presses, dry powder ball presses, desulfurized gypsum ball presses , mineral powder ball presses , and coal powder ball presses. Dongfang as a professional manufacturer of machinery and equipment, the equipment produced has reached the national quality standards. The company adheres to the quality-oriented and service-oriented production philosophy to ensure that the equipment has unparalleled performance, price, and production efficiency in the same industry. Comparable superiority. Inquiries: 0371-88885089 0371-67169912 Ball press equipment network: http://bjkrui.com (lh)

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Xinzhong Machinery is a joint-stock enterprise focusing on production machinery, integrating scientific research, production and sales. The company area is located in Zhengzhou Mazhai Economic Development Zone, covering an area of 60,000 square meters, with more than 35,000 square meters of standard workshops, more than 180 main processing equipment, and more than 1,000 online employees. Mainly produces ore powder ball press , hydraulic ball press , briquette ball press , dry powder ball press , desulfurized gypsum ball press , fire-free brick machine , road tile machine , sand making machine , ball mill , Raymond mill , Impact crusher and other products. Welcome new and old customers to visit and guide.

Recommended products: Ball compaction type coal compactor, dry powder compactor, mineral powder compactor, horizontal double shaft mixer, hammer crusher, impact crusher, fluorite powder compactor

Phone: 0371-55951060 Mobile: 18625555675 (WeChat) / 13938414363
Xinzhong Machinery http://bjkrui.com Address: 18 Dongfang Road, Mazhai Economic Development Zone, Erqi District, Zhengzhou City
Briquette briquette machine , dry powder briquette machine , ore powder briquette machine , desulfurized gypsum briquette machine , pulverized coal briquette machine ,

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