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Process method for preparing bricks by using papermaking sludge

A technology of papermaking sludge and process method, applied in clay products, ceramic products, applications, etc., can solve the problems of human and environmental hazards, poisoning, hazards, etc., and achieve the effect of saving clay

Inactive Publication Date: 2012-06-20
QUANZHOU HUAXIANG PAPER IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hypochlorous acid produced by the reaction of sodium hypochlorite and carbon dioxide acts as an active ingredient for sterilization. Hypochlorous acid has certain hazards and pungent taste. The free chlorine released by it may cause poisoning. Improper protection of operators will lead to poisoning incidents.
Moreover, during the sintering process of bricks, chlorine-containing gas will also be released, which is harmful to the human body and the environment.

Method used

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  • Process method for preparing bricks by using papermaking sludge
  • Process method for preparing bricks by using papermaking sludge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The papermaking sludge brick making process method of the present embodiment comprises steps:

[0027] Step 1: Put the papermaking sludge in the sterilizing treatment tank, add water to the sterilizing treatment tank, and the weight ratio of the amount of water added to the papermaking sludge is 2:1;

[0028] Step 2: Passing disinfection gas into the sterilization treatment pool for sterilization and disinfection treatment;

[0029] Step 3: drying the papermaking sludge after the gas sterilization and disinfection treatment;

[0030] Step 4: Put the dried papermaking sludge, cinder, and clay in a mixing tank for stirring and mixing evenly. The mixing mass ratio of papermaking sludge, cinder, and clay is: 15 parts of papermaking sludge, 12 parts of cinder, and 60 parts of clay ;

[0031] Step 5: Extrude the mixture of cinder, clay and papermaking sludge into billets, cut into bricks, and after drying, sinter the bricks at a sintering temperature of 600-700°C.

Embodiment 2

[0033] The papermaking sludge brick making process method of the present embodiment comprises steps:

[0034] Step 1: Put the papermaking sludge in the sterilizing treatment tank, add water to the sterilizing treatment tank, and the weight ratio of the amount of water added to the papermaking sludge is 2:1;

[0035] Step 2: Passing disinfection gas into the sterilization treatment pool for sterilization and disinfection treatment;

[0036] Step 3: drying the papermaking sludge after the gas sterilization and disinfection treatment;

[0037] Step 4: Put the dried papermaking sludge, cinder, and clay in a mixing tank for stirring and mixing evenly. The mixing mass ratio of papermaking sludge, cinder, and clay is: 25 parts of papermaking sludge, 15 parts of cinder, and 85 parts of clay ;

[0038] Step 5: Extrude the mixture of cinder, clay and papermaking sludge into billets, cut into bricks, and after drying, sinter the bricks at a sintering temperature of 600-700°C.

Embodiment 3

[0040] The papermaking sludge brick making process method of the present embodiment comprises steps:

[0041] Step 1: Put the papermaking sludge in the sterilizing treatment tank, add water to the sterilizing treatment tank, and the weight ratio of the amount of water added to the papermaking sludge is 2:1;

[0042] Step 2: Passing disinfection gas into the sterilization treatment pool for sterilization and disinfection treatment;

[0043] Step 3: drying the papermaking sludge after the gas sterilization and disinfection treatment;

[0044] Step 4: Put the dried papermaking sludge, cinder, and clay in a mixing tank for stirring and mixing evenly. The mixing mass ratio of papermaking sludge, cinder, and clay is: 20 parts of papermaking sludge, 10 parts of cinder, and 70 parts of clay ;

[0045] Step 5: Extrude the mixture of cinder, clay and papermaking sludge into billets, cut into bricks, and after drying, sinter the bricks at a sintering temperature of 600-700°C.

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Abstract

The invention relates to a process method for preparing bricks by using papermaking sludge, and relates to the field of papermaking sludge treatment in papermaking industry. The process method comprises the following steps of: 1, putting the papermaking sludge into a sterilizing treatment pond, and adding water into the sterilizing treatment pond, wherein a ratio of water volume to the weight of the papermaking sludge is 2:1; 2, introducing disinfection gas into the sterilizing treatment pond to perform sterilizing disinfection; 3, drying the papermaking sludge subjected to gas sterilizing disinfection; 4, stirring and mixing 15 to 25 mass parts of dried papermaking sludge with 10 to 15 mass parts of coal cinder and 60 to 85 mass parts of clay uniformly in a stirring pond; and 5, extruding the mixture of the coal cinder, the clay and the papermaking sludge to form blank strips, cutting to form brick blanks, drying, and sintering the brick blanks at the sintering temperature of between 600 and 700 DEG C. The process method for preparing the bricks by using the papermaking sludge has smaller harm to human bodies and environment.

Description

technical field [0001] The invention relates to the field of papermaking sludge treatment in the papermaking industry, in particular to a process for preparing papermaking sludge into building bricks. Background technique [0002] Papermaking waste is a kind of industrial waste, and its current treatment is incineration. In the incineration process, a large amount of fuel oil is required, and a large amount of mixed hot gas of carbon dioxide, carbon monoxide, and hydrocarbons produced during the combustion of fuel oil will cause secondary pollution to the environment. Therefore, in order to avoid environmental pollution caused by burning papermaking waste, and also to avoid damage to soil resources caused by excavating farmland clay to make bricks. An authorized patent publication number CN1408675 discloses a method for preparing sintered bricks from waste paper and papermaking sludge, the method comprising the following steps: a) pretreating the waste paper and paper makin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/00C04B33/132C04B38/00
CPCY02P40/60
Inventor 陈长兴
Owner QUANZHOU HUAXIANG PAPER IND
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