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Current situation:
At present, the body material and base material for producing the polished bricks is generally dried by heavy-oil-fired or cold-coal-fired hot air furnace. The price of these two fuel is high, and cancerogenic substance such as phenolic water is produced during the process of making cold coal gas. This runs counter to the current requirement of clean production technology, saving energy and reducing emission. To solve these problems, our company develop high-clean direct coal-fired hot air furnace used for base powder of polished bricks.
BHL-Z1 coal-fired hot air furnace use bituminous coal / soft coal as fuel. It has the features of safety, high-efficiency, energy efficient, environment friendly, small covering area and easy installation. At present, it is the first choice to replace the CWS hot air furnace.
BHL-Z1 consists of BHL coal-fired machine, combustion chamber and air mixing chamber. The bituminous coal is lifted to the burning bucket (located at one side of the coal-fired machine) by the coaling machine. When get to a certain height, the coal is sent to the combustion chamber at a constant speed by the chain grate stoker. The flue gas (1000℃) generated by the burning coal is mixed with a certain amount of cold air. When get to about 650℃, the hot air enters into the spray tower to dry the material. The temperature of the hot air can be adjusted according to different technical requirements, and the fluctuation range of the continuous hot air temperature is ±5℃. The coal slag is discharged from the other side of the coal-fired machine to the slag discharging machine, and then sent out by the automatic scraper slag machine.
1. low heating cost. Use bituminous coal as fuel and the thermal efficiency is more than 93%. The coal consumption of 1 ton base powder is about 70-90kg, saving energy of 15-20% compared with CWS furnace.
2. there's no black smoke in the hot air and the dust content is less than 120mg/Nm3. The hot air pipe is easy to clean, and no coking is produced. All the hot air enters into the spray tower, and no secondary pollution during the production.
The company has been passed the ISO9001:2008 international quality system certification.The company has completed product development system,quality management system and professional construction team,succeeded at home and abroad in undertaking hundreds of sets of hot air equipment design,manufacture,installation and commissioning.
Banghua International Granulation Engineering Co., Ltd.
Address: 750 shunhua road University Science Park Hi-tech development area Jinan city Shandong province.
Tel: 0531-88876687 0531-88877967
Fax: 0531-88870667
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