CN111410469A

CN111410469A - Application of river channel solid waste in environment-friendly baking-free solid bricks and preparation method

Info

Publication number: CN111410469A
Application number: CN202010406428.1A
Authority: CN
Inventors: 杨东云; 陈淑玉; 林泳彬
Original assignee: Guangdong Huayang Technology Co ltd
Current assignee: Guangdong Huayang Technology Co ltd
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2020-07-14

Abstract

The invention discloses an application of river channel solid waste in an environment-friendly baking-free solid brick and a preparation method thereof, wherein the formula of the environment-friendly baking-free solid brick comprises the following components in parts by weight: 40-60% of tail mud, 40-60% of stone powder, 5-10% of sand, 10-25% of cement and 0.1-0.3% of curing agent, wherein the tail mud is a mud cake with the water content of less than 50%; the mud cake is processed by the following steps: and (3) pumping the oxidized and aerated mud sand with the particle size of less than 0.075mm into a mud-water separation system along with mud water, adding a flocculating agent to quickly precipitate under the action of an inclined plate, reacting the precipitated mud with the solid content of 10% by a mud pump, adding polyaluminium chloride and polyacrylamide into a pipeline mixer, and dewatering and squeezing the mud cake into a filter press. The invention not only has good compression strength and rupture strength, but also has outstanding water stability and excellent anti-permeability capability, and the anti-permeability coefficient can reach 10 < -5 > to-8.

Description

Application of river channel solid waste in environment-friendly baking-free solid bricks and preparation method

Technical Field

The invention relates to the technical field of solid waste utilization, in particular to application of river solid waste in an environment-friendly baking-free solid brick and a preparation method thereof.

Background

The stock and annual emission of solid wastes in China are huge, the wastes occupy a large amount of land and pollute the environment of peripheral areas, and a large amount of unrecyclable wastes are required to be invested every year to process funds, so that the wastes become a heavy burden for enterprises; with the improvement of environmental protection requirements of factories, many brick and tile factories stop production in a break. Only by reasonably utilizing and developing renewable resources and developing novel materials, the problems of social resource saving, environmental protection and pollution solving can be achieved.

Disclosure of Invention

The invention aims to solve the technical problem of the prior art and provides an application of river channel solid waste in an environment-friendly baking-free solid brick and a preparation method thereof.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the application of the solid waste of the river channel to the environment-friendly baking-free solid brick comprises the following components in percentage by weight: 40-60% of tail mud, 40-60% of stone powder, 5-10% of sand, 10-25% of cement and 0.1-0.3% of curing agent, wherein the tail mud is a mud cake with the water content of less than 50%; the mud cake is processed by the following steps: and (3) pumping the oxidized and aerated mud sand with the particle size of less than 0.075mm into a mud-water separation system along with mud water, adding a flocculating agent to quickly precipitate under the action of an inclined plate, reacting the precipitated mud with the solid content of 10% by a mud pump, adding polyaluminium chloride and polyacrylamide into a pipeline mixer, and dewatering and squeezing the mud cake into a filter press.

In the technical scheme, the compound enzyme diluted according to the proportion of 1:100 is added into the slurry at a certain speed through a metering pump and is uniformly mixed with the slurry, and then the oxidation aeration treatment is carried out.

In the technical scheme, the duration of the oxidation aeration treatment is 4 hours.

In the technical scheme, the formula of the compound enzyme comprises 1-15% of papain, 1-15% of bromelain, 1-10% of cellulase, 0.5-5% of lysozyme, 0.5-5% of L-aspartase, 0.5-5% of yeast extract, 0.5-5% of enzyme inhibitor, 0.5-5% of enzyme stabilizer and 30-80% of distilled water.

In the technical scheme, the polyacrylamide is prepared according to the following weight ratio of 1: 2000, adding water for dilution, wherein the adding amount is 6500 l/h; the polyaluminum chloride is prepared from the following components in percentage by weight: 100 is diluted by water, and the addition amount is 330 l/h.

A preparation method of an environment-friendly baking-free solid brick is used for preparing the environment-friendly baking-free solid brick with the application of the solid waste of the riverway to the environment-friendly baking-free solid brick, and comprises the following steps:

step 1), weighing, mixing and stirring the tailing slurry, the stone powder and the sand according to a weight ratio, and screening a uniformly stirred mixed material A by a vibrating screen for later use;

step 2) weighing and mixing the mixed material A, cement and a curing agent according to a weight ratio, stirring, and crushing the uniformly stirred mixed material B by a powder mixer to obtain a crushed product;

and 3) carrying out compression molding on the crushed product by a brick press to obtain the environment-friendly baking-free solid brick.

In the technical scheme, the tail mud is further dehydrated until the water content is 20%.

The invention has the beneficial effects that: not only has good compression strength and rupture strength, but also has outstanding water stability and excellent anti-permeability capability, and the anti-permeability coefficient can reach 10 < -5 > to minus 8.

Detailed Description

The present invention is described in further detail below.

The application of the river solid waste to the environment-friendly baking-free solid brick comprises, by weight, 40-60% of tail mud, 40-60% of stone powder, 5-10% of sand, 10-25% of cement and 0.1-0.3% of a curing agent, wherein the tail mud is a mud cake with the water content of less than 50%, the mud cake is treated by the following steps of pumping mud sand with the particle size of less than 0.075mm after oxidation and aeration treatment into a mud-water separation system along with mud water, adding a flocculating agent to rapidly precipitate under the action of an inclined plate, adding polyaluminium chloride and polyacrylamide after precipitation, reacting through a pipeline mixer, then dehydrating and squeezing into the mud cake through a filter press, adding a metering pump to the mud slurry to uniformly mix the mud with the polyaluminium chloride and the polyacrylamide according to a ratio of 1:100, adding the composite enzyme diluted according to a certain ratio, uniformly mixing the metering pump to the mud, carrying out the oxidation and aeration treatment, wherein the duration time of the oxidation and aeration treatment is 4h, the formula of the composite enzyme is that the papain is 1-15%, the bromelain an enzyme protease, the addition amount of 1-15%, the yeast is 0.5%, the yeast is a distilled water, the cellulase, and the cellulase, the cellulase is 0.5-5% of the cellulase, and the cellulase, the cellulase is 0.5-0.5% of the cellulase, 0.5, and the cellulase, 0.5-5, the cellulase is diluted water is 0..

Specifically, the tail mud is further dehydrated to reach a water content of 20%.

The curing agent is a soil curing agent. The production and the use of the soil curing agent are pollution-free, and the diluted curing agent aqueous solution is non-toxic and harmless, belongs to a novel environment-friendly and resource-saving high-tech material, and can effectively solve the problem of pollution of road building materials.

The above examples are intended to illustrate rather than to limit the invention, and all equivalent changes and modifications made by the methods described in the claims of the present invention are intended to be included within the scope of the present invention.

Claims

1. The application of the solid waste of the river channel to the environment-friendly baking-free solid brick is characterized in that the formula of the environment-friendly baking-free solid brick comprises the following components in percentage by weight: 40-60% of tail mud, 40-60% of stone powder, 5-10% of sand, 10-25% of cement and 0.1-0.3% of curing agent, wherein the tail mud is a mud cake with the water content of less than 50%; the mud cake is processed by the following steps: and (3) pumping the oxidized and aerated mud sand with the particle size of less than 0.075mm into a mud-water separation system along with mud water, adding a flocculating agent to quickly precipitate under the action of an inclined plate, reacting the precipitated mud with the solid content of 10% by a mud pump, adding polyaluminium chloride and polyacrylamide into a pipeline mixer, and dewatering and squeezing the mud cake into a filter press.

2. The application of the riverway solid waste on the environment-friendly baking-free solid bricks according to claim 1 is characterized in that: and adding the complex enzyme diluted according to the proportion of 1:100 at a certain speed through a metering pump, uniformly mixing with the slurry, and performing the oxidation aeration treatment.

3. The application of the riverway solid waste on the environment-friendly baking-free solid bricks according to claim 2 is characterized in that: the duration time of the oxidation aeration treatment is 4 hours.

4. The application of the riverway solid waste on the environment-friendly baking-free solid brick as claimed in claim 2 is characterized in that the formula of the complex enzyme is 1-15% of papain, 1-15% of bromelain, 1-10% of cellulase, 0.5-5% of lysozyme, 0.5-5% of L-aspartase, 0.5-5% of yeast extract, 0.5-5% of enzyme inhibitor, 0.5-5% of enzyme stabilizer and 30-80% of distilled water.

5. The application of the riverway solid waste on the environment-friendly baking-free solid bricks according to claim 1 is characterized in that: the polyacrylamide is prepared according to the following weight ratio of 1: 2000, adding water for dilution, wherein the adding amount is 6500 l/h; the polyaluminum chloride is prepared from the following components in percentage by weight: 100 is diluted by water, and the addition amount is 330 l/h.

6. A preparation method of an environment-friendly baking-free solid brick, which is used for preparing the environment-friendly baking-free solid brick of the application of the solid waste of the riverway to the environment-friendly baking-free solid brick according to any one of claims 1 to 5, and is characterized by comprising the following steps:

7. The preparation method of the environment-friendly baking-free solid brick as claimed in claim 1, wherein the preparation method comprises the following steps: and further dehydrating the tail mud until the water content is 20%.