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The hot pressing process of the ball press consists of the following four stages

The hot pressing process of the ball press consists of the following four stages

1. Coal preparation
(1) Coal quality
As far as coal quality is concerned, you can choose a single type of bituminous coal with a certain cohesiveness that is suitable for the hot-pressing process (Y value can be about 10mm). Blended with anthracite, weakly sticky coal, and non-sticky coal (where the threshold of cohesive bituminous coal should be> 15mm)

(2) Granularity
The particle size of coal should be crushed to <3mm, and the fine particle coal powder <1mm should be controlled to 85 ~ 90%.
(3) Moisture
In order to facilitate the feeding and metering, the moisture in coal is best controlled at 2-4%.
2. heating
Rapid heating is the key to pulverized coal hot-pressing technology. In a short period of time, pulverized coal at room temperature is used in several sets of vertical tube heating devices in series. ℃), is quickly heated to the softening temperature range of coal (420-450 ℃).
3. forming
In the pulverized coal briquette briquette unit, the pulverized coal with good adhesion and plasticity can be pressed to form hot briquettes through temperature homogenization, extrusion plasticization, and melt molding.
4. Hot
The blocks that have not been hardened just after being pressed from the briquette ball machine are sent to the hot cauldron. Under the condition of isolated air, the hot blocks are gradually cooled and hardened gradually to a dense and hard texture The coke-like briquette of coal has a significantly improved degree of crush resistance through hot upsetting

The above information is from Zhengzhou Dongfang Heavy Industry ( http://bjkrui.com ), please indicate the source when reprinting.

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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 , slag powder briquette machine , desulfurized gypsum briquette machine ,

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