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Method for mfg. energy-saving building brick using paper making mud

A paper-making sludge and building energy-saving technology, applied in the field of building materials, can solve the problems of ineffective treatment of sludge, low mixing amount of paper-making sludge, poor sintering degree, etc., to achieve the protection of the ecological environment and the production cost Low, reduce the effect of energy consumption

Active Publication Date: 2006-01-25
浙江中悦环保新材料股份有限公司
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Problems solved by technology

In this manufacturing method, the mixing amount of papermaking sludge is low, about 10-25%, and the water content is 40-50%, and the sludge cannot be effectively treated
In addition, the sintering temperature of this manufacturing method is only 600-700°C, the degree of sintering is poor, and the durability of the product is also poor

Method used

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Embodiment Construction

[0018] Specific embodiments of the present invention will now be described in detail.

[0019] A described method of utilizing papermaking sludge to manufacture building energy-saving bricks comprises the following steps:

[0020] (1) Take the following raw materials in weight ratio: 25-30 parts of papermaking sludge, 70-75 parts of shale;

[0021] (2) the papermaking sludge and the shale of the weight ratio described in the step (1) are mixed into sludge with a twin-shaft mixer and a stirring extruder;

[0022] (3) Extrude the mud obtained in step (2) with a brick making machine, cut into bricks, and then dry the bricks naturally, or dry them with a tunnel drying kiln, or dry them in a chamber The kiln is dried to form a dry billet, and finally, the finished product is fired at a temperature of 975-1025°C in a tunnel kiln or a wheel kiln.

[0023] The method for making building energy-saving bricks using papermaking sludge, the "papermaking sludge" used is the sludge produc...

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Abstract

A technology for making energy-saving brick from paper-making mud includes such steps as proportionally mixing said mud with clay, shaping by brick maker, drying and calcining at 900-1050 deg. C. Its advantages are low energy consumption and high insulating performance of brick.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a method for manufacturing building energy-saving bricks by using papermaking sludge produced by sewage treatment in paper mills. Background technique [0002] With the continuous development of my country's economic construction, the impact of sewage produced by paper mills on the ecological environment is becoming more and more serious. Improve conditions to achieve sustainable development goals. However, a large amount of sludge will be produced in the process of papermaking sewage treatment. At present, the treatment of sludge in my country is mainly incineration and landfill. The incineration method not only has a huge one-time investment and high operating cost, but also some The slag needs to be treated, and if it is disposed of in an underground landfill, it will occupy a large amount of stockpiles, and there is also a p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/13C04B18/30C04B33/04
CPCY02W30/91
Inventor 董晓峰沈光银池跃章蔡小兵吴子荣
Owner 浙江中悦环保新材料股份有限公司
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