CN101805141B

CN101805141B - Method for producing building brick raw material by using urban building waste mud

Info

Publication number: CN101805141B
Application number: CN201010136941XA
Authority: CN
Inventors: 许宗; 吕志刚; 龚秋萍
Original assignee: Jiangsu Jiangda Ecological Technology Co Ltd
Current assignee: Jiangsu Jiangda Ecological Technology Co Ltd
Priority date: 2010-03-30
Filing date: 2010-03-30
Publication date: 2011-12-21
Anticipated expiration: 2030-03-30
Also published as: CN101805141A

Abstract

The invention relates to a method for producing a building brick raw material by using urban building waste mud, which comprises the following steps of: (1) collectively transporting the waste mud of the building waste mud to a mud storage pool; (2) setting a drying pool, namely uniformly setting crisscross seepage tunnels at the bottom of the drying pool, fully filling the seepage tunnels with sand to form yellow sand blind ditches, and setting a plurality of collecting wells on the periphery of the drying pool; (3) diluting the building waste mud until the mud rate is less than or equal to 15 percent to form diluted mud, conveying the diluted mud to the drying pool, adding a cationic flocculating agent into the drying pool at the same time according to the addition of 10 to 25 milligrams per one kilogram of the diluted mud, flocculating the diluted mud, and discharging a supernatant fluid; and (4) assembling lower layer mud to the collecting wells through further water leakage by the yellow sand blind ditches, wherein 30 to 50 days later, the lower layer mud becomes dry mud, namely the building brick raw material, with the mud rate of 60 to 70 percent. In the method, the waste mud is treated in centralization, and building bricks prepared from the waste mud can be used for urban constructions again to ensure that a city develops in a healthy way.

Description

Utilize the urban architecture discarded slurry to produce the method for building brick raw material

Technical field

The present invention relates to a kind of method that solves the urban architecture discarded slurry, especially a kind of method of utilizing the urban architecture discarded slurry to produce the building brick raw material.

Background technology

Traditional brickmaking mode is to be main raw material with the clay, has has seriously occupied the arable land.Comprehensive production and the use of forbidding clay brick of government.Fast development along with city and market town, the real estate large-scale development, city underground, viaduct is newly-built, taken a large amount of discarded slurries out of, according to investigation, a medium-sized city will produce the above discarded slurry of 10,000 sides every day, large size city will produce 20,000 sides even the above discarded slurry of 30,000 sides, this brings great trouble to disposal, the construction site is all given tank car or barging family the discarded slurry bag at present, and often take to water drain at these transportation families, the river course, the mountain depression mode of falling of stealing lack of standardization is discharged, cause sewerage system to stop up, river channel sedimentation influences resident living and vessel shipping safety, has caused the great attention of government.

Summary of the invention

The objective of the invention is to overcome the deficiencies in the prior art, a kind of method of utilizing the urban architecture discarded slurry to produce the building brick raw material is provided, can solve the recycling of urban waste mud.

According to technical scheme provided by the invention, the described method of utilizing the urban architecture discarded slurry to produce the building brick raw material comprises the steps:

(1) construction waste mud is concentrated is transported to mud and deposits the pond;

(2) mummifying pool is set: each mummifying pool capacity is 20～30 ten thousand steres, in the bottom of mummifying pool (1) crisscross infiltration tunnel is set evenly, the infiltration tunnel fills up with sand and forms sand french drain (2), in the periphery of mummifying pool (1) several pump wells (3) is set;

(3) with mud containing rate be 20～30% construction waste mud, through being diluted to mud containing rate≤15%, form dilution mud, and through pipe-line transportation to the mummifying pool that sets, add cationic flocculant simultaneously, the add-on of cationic flocculant is 10～25 a mg/kg dilution mud; Described cationic flocculant is diluted to 1～2 ‰ cationic flocculant solution earlier when being added into mummifying pool; The dilution mud that enters mummifying pool flocculated through 1～2 minute under the effect of cationic flocculant, mud-water separation, and with the supernatant liquor discharging, the mud containing rate of lower floor's mud is 35%～40%;

(4) the lower floor's mud particle that forms through the flocculation back becomes big, help infiltration, the yellow ground french drain further is pooled to pump well with the infiltration of lower floor's mud, the water of pump well can pass through the water pump pump drainage, after 30～50 days, it is 60%～70% mummification mud that lower floor's mud becomes mud containing rate, promptly becomes the raw material of building brick.

The present invention makes rational planning for, leaves concentratedly, decrement digestion, recycle, and purpose is that the construction site can normal construction, and discarded slurry can centrally dispose, and the building brick that discarded slurry is made can be used for urban construction again, is developed in a healthy way in the city.

Description of drawings

Fig. 1 is the structural representation of mummifying pool.

Fig. 2 is the sectional view of mummifying pool.

Embodiment

The invention will be further described below in conjunction with specific embodiment.

Cationic flocculant used in the present invention is the cationic polyacrylamide that Suzhou Industrial Park Wo Pu Science and Technology Ltd. produces, product performance are as described in the http://www.wopro.com.cn/athena/offerdetail/sale/wopro-1034289-1 95985936.html, outward appearance is white or little yellow, molecular weight is 300～1,200 ten thousand, solid content 〉=88%, effectively the pH scope is 1～14, and the ionization degree is 20～70%, residual monomer content≤0.05%.

Cationic polyacrylamide is by cationic monomer (DM, DMC, CPF, DMDAAC, DMAEMA etc.) and acrylamide copolymerization, forms product appearance be white in color fine particle or pulverulent solids through granulation, drying, pulverizing.Cationic polyacrylamide is a kind of polymer coagulant aids commonly used, has the effect of intensive adsorption bridging, tiny dispersive flco is become fine and close and thick, and then improves flocculating effect.

Embodiment one: a kind of method of utilizing the urban architecture discarded slurry to produce the building brick raw material comprises the steps:

(2) mummifying pool is set: each mummifying pool capacity is 20 ten thousand steres, in the bottom of mummifying pool 1 crisscross infiltration tunnel is set evenly, and the infiltration tunnel fills up with sand and forms yellow ground french drain 2, and several pump wells 3 are set in the periphery of mummifying pool 1;

(3) with mud containing rate be 20% construction waste mud, through being diluted to mud containing rate≤15%, form dilution mud, and through pipe-line transportation to the mummifying pool that sets, add cationic polyacrylamide simultaneously, the add-on of cationic polyacrylamide is 10 a mg/kg dilution mud; Described cationic polyacrylamide is diluted to concentration earlier when being added into mummifying pool be 1 ‰ cationic polyacrylamide solution; The dilution mud that enters mummifying pool flocculated under the effect of cationic polyacrylamide in 1～2 minute, mud-water separation, and with the supernatant liquor discharging, the mud containing rate of lower floor's mud is 40%;

(4) the lower floor's mud particle that forms through the flocculation back becomes big, helps infiltration, and the yellow ground french drain further is pooled to pump well with the infiltration of lower floor's mud, the water of pump well can pass through the water pump pump drainage, after 30 days, it is 70% mummification mud that lower floor's mud becomes mud containing rate, promptly becomes the raw material of building brick.

Embodiment two: a kind of method of utilizing the urban architecture discarded slurry to produce the building brick raw material comprises the steps:

(2) mummifying pool is set: each mummifying pool capacity is 30 ten thousand steres, in the bottom of mummifying pool 1 crisscross infiltration tunnel is set evenly, and the infiltration tunnel fills up with sand and forms yellow ground french drain 2, and several pump wells 3 are set in the periphery of mummifying pool 1;

(3) with mud containing rate be 30% construction waste mud, through being diluted to mud containing rate≤15%, form dilution mud, and through pipe-line transportation to the mummifying pool that sets, add cationic polyacrylamide simultaneously, the add-on of cationic polyacrylamide is 25 a mg/kg dilution mud; Described cationic polyacrylamide is diluted to concentration earlier when being added into mummifying pool be 2 ‰ cationic polyacrylamide solution; The dilution mud that enters mummifying pool flocculated under the effect of cationic polyacrylamide in 1～2 minute, mud-water separation, and with the supernatant liquor discharging, the mud containing rate of lower floor's mud is 35%;

(4) the lower floor's mud particle that forms through the flocculation back becomes big, helps infiltration, and the yellow ground french drain further is pooled to pump well with the infiltration of lower floor's mud, the water of pump well can pass through the water pump pump drainage, after 50 days, it is 60% mummification mud that lower floor's mud becomes mud containing rate, promptly becomes the raw material of building brick.

Embodiment three: a kind of method of utilizing the urban architecture discarded slurry to produce the building brick raw material comprises the steps:

(2) mummifying pool is set: each mummifying pool capacity is 25 ten thousand steres, in the bottom of mummifying pool 1 crisscross infiltration tunnel is set evenly, and the infiltration tunnel fills up with sand and forms yellow ground french drain 2, and several pump wells 3 are set in the periphery of mummifying pool 1;

(3) with mud containing rate be 25% construction waste mud, through being diluted to mud containing rate≤15%, form dilution mud, and through pipe-line transportation to the mummifying pool that sets, add cationic polyacrylamide simultaneously, the add-on of cationic polyacrylamide is 20 a mg/kg dilution mud; Described cationic polyacrylamide is diluted to concentration earlier when being added into mummifying pool be 1.5 ‰ cationic polyacrylamide solution; The dilution mud that enters mummifying pool flocculated under the effect of cationic polyacrylamide in 1～2 minute, mud-water separation, and with the supernatant liquor discharging, the mud containing rate of lower floor's mud is 38%;

(4) the lower floor's mud particle that forms through the flocculation back becomes big, helps infiltration, and the yellow ground french drain further is pooled to pump well with the infiltration of lower floor's mud, the water of pump well can pass through the water pump pump drainage, after 40 days, it is 65% mummification mud that lower floor's mud becomes mud containing rate, promptly becomes the raw material of building brick.

Claims

1. a method of utilizing the urban architecture discarded slurry to produce the building brick raw material is characterized in that described method comprises the steps:

(4) the lower floor's mud particle that forms through the flocculation back becomes big, help infiltration, the sand french drain further is pooled to pump well with the infiltration of lower floor's mud, the water of pump well can pass through the water pump pump drainage, after 30～50 days, it is 60%～70% mummification mud that lower floor's mud becomes mud containing rate, promptly becomes the raw material of building brick.