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Water permeable brick manufactured by sintering of urban sludge and construction waste and manufacturing method of water permeable brick

A technology for construction waste and urban sludge, applied in applications, household appliances, clay products, etc., can solve problems such as affecting the urban living environment, easily generating dust, occupying land, etc., and achieving a wide source of raw materials, low cost, and enhanced performance. Effect

Inactive Publication Date: 2019-12-10
ZHEJIANG ZONE KING ENVIRONMENTAL SCI&TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, in the invention patent with publication number CN107698273A, the raw materials used include clay, which will be greatly restricted from the perspective of protecting land resources
[0009] With the acceleration of urban construction, there is no proper way to dispose of urban construction waste. At present, it is mainly landfilled, and its digestion capacity is obviously insufficient. The accumulation of construction waste seriously affects the city appearance and occupies a large amount of land. At the same time, it is easy to generate dust, etc., which affects the city. living environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1) Municipal sludge drying pretreatment: drying the municipal sludge to a moisture content of 30%;

[0032] 2) Construction waste and shale treatment: the construction waste and shale are initially mixed and crushed, and then further crushed, mixed and ground to 60 mesh;

[0033] 3) Aging treatment: Mix 10 parts of municipal sludge, 40 parts of shale, and 30 parts of construction waste after step 1) and step 2), and add 15 parts of water to fully mix, and age the mixture after mixing. Chemical treatment, the mixture aging time is 24h;

[0034] 4) Extrusion molding: the aged mixture is fed into a vacuum brick extruder to form a billet under pressure, and the molding extrusion pressure is 15Mpa;

[0035] 5) Brick drying: Send the formed bricks into the drying kiln for drying. The drying time of the bricks is 25 hours, the drying temperature is 170°C, and the moisture content of the bricks after drying is 5-8%;

[0036] 6) High-temperature roasted finished products: the ...

Embodiment 2

[0038] 1) Municipal sludge drying pretreatment: drying the municipal sludge to a moisture content of 33%;

[0039] 2) Construction waste and shale treatment: the construction waste and shale are initially mixed and crushed, and then further crushed, mixed and ground to 70 mesh;

[0040] 3) Aging treatment: Mix 13 parts of municipal sludge, 44 parts of shale, and 34 parts of construction waste after step 1) and step 2), and add 15 parts of water to fully mix, and age the mixture after mixing. Chemical treatment, the mixture aging time is 28h;

[0041] 4) Extrusion molding: the aged mixture is fed into a vacuum brick extruder to form a billet under pressure, and the molding extrusion pressure is 18Mpa;

[0042] 5) Brick drying: send the shaped bricks into the drying kiln for drying, the drying time of the bricks is 28 hours, the drying temperature is 172°C, and the moisture content of the bricks after drying is 6%;

[0043] 6) High-temperature roasted finished products: the dr...

Embodiment 3

[0045] 1) Municipal sludge drying pretreatment: drying the municipal sludge to a moisture content of 35%;

[0046] 2) Construction waste and shale treatment: the construction waste and shale are initially mixed and crushed, and then further crushed, mixed and ground to 80 mesh;

[0047]3) Aging treatment: Mix 15 parts of municipal sludge, 50 parts of shale, and 35 parts of construction waste after step 1) and step 2), and add 15 parts of water to fully mix, and age the mixture after mixing. Chemical treatment, the mixture aging time is 30h;

[0048] 4) Extrusion molding: the aged mixture is fed into a vacuum brick extruder to form a billet under pressure, and the molding extrusion pressure is 205Mpa;

[0049] 5) Brick drying: Send the formed bricks into the drying kiln for drying. The drying time of the bricks is 30 hours, the drying temperature is 175°C, and the moisture content of the bricks after drying is 6%;

[0050] 6) High-temperature roasted finished products: the dr...

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Abstract

The invention relates to a water permeable brick manufactured by sintering of urban sludge and construction waste and a manufacturing method of the water permeable brick, and belongs to the technicalfield of novel building materials. The manufacturing method comprises the following steps: (1) urban sludge drying pretreatment; (2) construction waste and shale treatment; (3) aging treatment; (4) extrusion molding; (5) green brick drying; and (6) high-temperature baking of a finished product. According to the water permeable brick manufactured by sintering of the urban sludge and the construction waste and the manufacturing method of the water permeable brick, raw materials are wide in source, simple and low in cost, the performance of the water permeable brick can completely meet the national standards, the porosity of the water permeable brick is increased to a certain extent through addition of the urban sludge, the penetration rate of pores in the water permeable brick is retained through the reasonable baking temperature, and the prepared water permeable brick has a good water permeability effect. Thus, on the one hand, the performance of the water permeable brick is enhanced, and meanwhile, the urban sludge and the construction waste can be subjected to resource utilization.

Description

technical field [0001] The invention belongs to the technical field of new building materials, in particular to a permeable brick produced by making and sintering urban sludge and construction waste and a production method thereof. Background technique [0002] With the introduction of the principle of "solid waste out of the county and hazardous waste out of the city" for general solid waste disposal, higher disposal requirements for urban general solid waste including sludge have been put forward, making sludge including sludge The general solid waste in the city has become a major obstacle to the development of the city and the appearance of the city. [0003] Municipal sludge mainly includes municipal sludge and industrial sludge. The generation of municipal sludge mainly comes from the biochemical reaction tanks and sedimentation tanks of urban sewage treatment plants and waterworks. The biochemical reaction tanks of sewage treatment plants account for the vast majority...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/04C04B33/13C04B33/132C04B38/06
CPCC04B33/04C04B33/13C04B33/132C04B33/1321C04B38/06C04B2235/6021C04B2235/606C04B2235/656C04B2235/6567C04B2235/96Y02P40/60
Inventor 刘猛孙凯赵威刘明浩卓未龙王志宏王宇峰
Owner ZHEJIANG ZONE KING ENVIRONMENTAL SCI&TECH CO LTD
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