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Process method for refining sand by recycling sludge

A process method and sludge technology, applied in the field of preparation of environmental protection materials, can solve the problems of secondary pollution, failure to achieve reduction, stabilization and harmlessness, resource utilization, etc., to avoid pollution, achieve soil water retention and The effect of breathability and good water permeability

Inactive Publication Date: 2016-05-25
TIANHE AUTOMATION TECH SUZHOU +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disposal of many urban sewage sludge does not meet the requirements of reduction, stabilization, harmlessness, and resource utilization, and there is a problem of secondary pollution, which has become an important issue in sewage treatment

Method used

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  • Process method for refining sand by recycling sludge
  • Process method for refining sand by recycling sludge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: A kind of technological method of sludge recycling sand refining, comprises the following steps:

[0022] Step 1. Put the waste glass into the glass crusher and crush it into 5~10mm glass fragments;

[0023] Step 2. Grinding the glass shards in step 1 to produce glass powder with a particle size of micron;

[0024] Step 3, mixing the glass powder in step 2 with the sludge and sand slag produced after dehydration, drying and incineration from the sewage treatment plant according to the weight ratio of 80:5 and grinding to form a primary powder mixture;

[0025] Step 4, sieving the primary powder mixture from step 3, and then adding the sieved primary powder mixture composed of glass powder and sludge sand slag into a mixing and stirring device;

[0026] Step 5, 10 parts of clam shells and 5 parts of vermiculite powder are also added to the mixing and stirring device of step 4, mixed and stirred with glass powder and sludge sand slag to form a mixed powder;...

Embodiment 2

[0031] Embodiment 2: A kind of technical method of sludge recycling sand refining, comprising the following steps:

[0032] Step 1. Put the waste glass into the glass crusher and crush it into 5~10mm glass fragments;

[0033] Step 2. Grinding the glass shards in step 1 to produce glass powder with a particle size of micron;

[0034] Step 3, mixing the glass powder in step 2 with the sludge and sand slag produced after dehydration, drying and incineration from the sewage treatment plant according to the weight ratio of 60:10 and grinding to form a primary powder mixture;

[0035] Step 4, sieving the primary powder mixture from step 3, and then adding the sieved primary powder mixture composed of glass powder and sludge sand slag into a mixing and stirring device;

[0036] Step 5, 15 parts of clam shells and 15 parts of vermiculite powder are also added to the mixing and stirring device of step 4, mixed and stirred with glass powder and sludge sand slag to form mixed powder;

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Abstract

The invention discloses a process method for refining sand by recycling sludge. The method comprises the following steps: glass fragments are grinded and treated, in order to manufacture glass powder of micron particle size; glass powder as well as sludge sand and sediment which are produced by dehydration, desiccation and burning from a sewage treatment plant are mixed according to a proportion of 35-80:1-10 in parts by weight, grinding is carried out, and a primary powder mixture is obtained; the primary powder mixture is screened and treated, and the screened primary powder mixture composed of glass powder as well as sludge sand and sediment is added into a mixing and stirring device; 5-20 parts of clam shells and 1-15 parts of vermiculite powder are added into the mixing and stirring device in the step 4, mixing and stirring are carried out for the clam shells, the vermiculite powder, the glass powder, and the sludge sand and sediment, and mixed power is formed; the mixed power is added into a sintering furnace, and the porous environment-friendly material is manufactured at a high temperature condition of 600-900 DEG C. Recycle of waste glass and regeneration of sludge are organically combined with breakthrough, and the environment-friendly material can be used as building light-weight frame material, construction foundation material, water quality purifying material, and artificial floating island.

Description

technical field [0001] The invention relates to a preparation method of an environment-friendly material, in particular to a process method for sludge recycling and sand refining. Background technique [0002] With the rapid development of science and technology and the improvement of people's living standards, glass is not only widely used in housing construction and people's daily life, but also developed into an indispensable new material for scientific research, production and cutting-edge technology. At the same time, it is inevitable to produce a lot of glass waste and form a large amount of waste glass. Take a glass factory as an example. Under normal production conditions, the corner glass cut from the original plate glass accounts for about 15%-25% of the total glass production, and a considerable part of waste glass is waste glass produced by regular shutdowns. It accounts for about 5%-10% of the total glass production. Occasional fluctuations in the operating te...

Claims

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Application Information

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IPC IPC(8): C02F11/00C04B38/02C03C12/00C03B19/10
Inventor 徐智炜钟旭东
Owner TIANHE AUTOMATION TECH SUZHOU
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