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Industrial sludge comprehensive treatment method

A technology for comprehensive treatment of industrial sludge, applied to clay products, other household utensils, household utensils, etc., can solve problems such as environmental pollution and resource waste, and achieve the effects of saving clay resources, stabilizing normal production, and good quality

Inactive Publication Date: 2017-06-13
广东桓源环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Printing and dyeing factories, paper mills, power plants and other production processes produce a large amount of sludge, if not properly treated, it will not only cause environmental pollution, but also cause waste of resources

Method used

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  • Industrial sludge comprehensive treatment method

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Embodiment

[0014] Embodiment Adopt the following steps to realize the present invention:

[0015] (1) Dewater industrial sludge (clearing sludge from river construction, tunnel and underground engineering sludge: construction sludge, coal cinder, waste residue: printing and dyeing, papermaking, urban centralized domestic sewage treatment sludge) and send it to the shaft kiln for drying machine, the moisture content is controlled at 5-10%, and the roll crushing is used to go through primary crushing and secondary crushing in turn. After stirring evenly, it enters the aging warehouse for aging for 20 days;

[0016] (2) The aged raw materials are extruded by a twin-shaft mixer and extruded by a two-stage vacuum hard plastic extruder. The extruded mud strips are cut into bricks of the required size by a full-automatic billet cutter, and are mechanically loaded into the kiln. After leaving the warp, it is sintered into bricks through a tunnel kiln; part of the aged raw materials are granulate...

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Abstract

The invention discloses an industrial sludge comprehensive treatment method. The industrial sludge comprehensive treatment method comprises the following steps: performing mixing, crushing and ageing pretreatment on the industrial sludge, performing extrusion molding and drying on the aged raw materials, and sintering through a tunnel kiln to form bricks or pelletizing the aged raw materials by a double-roller pelleting machine and drying to prepare ceramsite. By the industrial sludge comprehensive treatment method, comprehensive utilization of the industrial sludge is realized and the aim of saving a clay resource is fulfilled; meanwhile, the problem about lifelong treatment on the sludge is solved; and compared with the clay brick, the obtained sludge environment-friendly sintering brick has strength, durability, heat-conducting coefficient, volume and stability which are similar to those of the clay brick, and is an ideal clay brick substitute. Ageing is conducted in the preparation process, so the surface and internal properties of the aged raw material granules are more uniform, the mixing effect is better, the plasticity and the forming property of the mixed material can be improved, the normal production of the whole line is stabilized, and the obtained environment-friendly brick has high quality.

Description

technical field [0001] The invention relates to a comprehensive treatment method for industrial sludge, belonging to the technical field of solid waste comprehensive treatment. Background technique [0002] Printing and dyeing factories, paper mills, power plants and other production processes produce a large amount of sludge. If not properly treated, it will not only cause environmental pollution, but also cause waste of resources. Through the treatment of printing and dyeing waste, papermaking waste, sewage treatment sludge, cinder (fly ash and slag), smelting waste slag (slag), construction sludge, river channel cleaning sludge, tunnel and underground engineering produced by urban centralized domestic sewage treatment plants The comprehensive utilization of sludge can realize the resource utilization of sludge. Contents of the invention [0003] The object of the present invention is to provide a method for industrial sludge, including printing and dyeing waste, paperm...

Claims

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Application Information

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IPC IPC(8): C04B33/132C04B33/135C04B33/138
CPCC04B33/1321C04B33/1328C04B33/1352C04B33/138Y02P40/60
Inventor 王栋麦丁雄
Owner 广东桓源环保科技有限公司