CN109704668A - A kind of aerated bricks and its processing method containing waste acidity recovery object - Google Patents
A kind of aerated bricks and its processing method containing waste acidity recovery object Download PDFInfo
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- CN109704668A CN109704668A CN201910074777.5A CN201910074777A CN109704668A CN 109704668 A CN109704668 A CN 109704668A CN 201910074777 A CN201910074777 A CN 201910074777A CN 109704668 A CN109704668 A CN 109704668A
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- aerated bricks
- acidity recovery
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Abstract
The invention belongs to building material technologies, and in particular to a kind of aerated bricks and its processing method containing waste acidity recovery object.The present invention includes following raw material: 26~33 parts of quick lime, 30~34 parts of cement, 12~14 parts of ardealite, 105~115 parts of silica sand, 17~22 parts of flyash, 1.2~1.5 parts of waste acidity recovery object, 6~8 parts of sodium metasilicate, 0.2~0.3 part of aluminium powder, 2~4 parts of foam stabilizer.The present invention obtains waste acidity recovery object after quick lime processing is added in the used sulfuric acid of industrial derusting or hydrochloric acid, harmful substance will not be generated in treatment process, the dosage of gypsum and cement can be reduced for producing aerated bricks, realize refuse reclamation, reduce production cost, it economizes on resources, while the zero-emission of spent acid pollutant may be implemented.
Description
Technical field
The invention belongs to building material technologies, and in particular to a kind of aerated bricks containing waste acidity recovery object and its processing
Method.
Background technique
Aerated bricks are a kind of light porous New Building Materials, and the aerated blocks of aerated bricks equipment production have bulk density light,
The advantages that high insulating efficiency is high, and sound-absorbing is good and processable, can be fabricated to wall building block, heat insulating block, pressure surface plate, floor, wallboard and guarantor
The products such as warm pipe, aerated bricks have begun in China and are widely used in industry and load-bearing or non bearing structure and pipeline in civil buildings
In heat preservation, become an important component of New Building Materials.
It is big by the used waste acid treatment cost of industrial derusting, and vast resources and the energy are wasted in treatment process, and
Deposit still has the risk for causing secondary pollution after treatment.Aerated bricks produce cement and gypsum consumption is huge.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of aerated bricks and its processing method containing waste acidity recovery object.
A kind of aerated bricks containing waste acidity recovery object, including following raw material: 26~33 parts of quick lime, cement 30~
34 parts, 12~14 parts of ardealite, 105~115 parts of silica sand, 17~22 parts of flyash, 1.2~1.5 parts of waste acidity recovery object, sodium metasilicate
6~8 parts, 0.2~0.3 part of aluminium powder, 2~4 parts of foam stabilizer.
Preferably, including following raw material: 28 parts of quick lime, 31 parts of cement, 12 parts of ardealite, 108 parts of silica sand, powder
19 parts of coal ash, 1.4 parts of waste acidity recovery object, 8 parts of sodium metasilicate, 0.2 part of aluminium powder, 4 parts of foam stabilizer.
Preferably, the spent acid is the hydrochloric acid or sulfuric acid used by industrial derusting.
Preferably, the waste acidity recovery object is that quick lime adjusting is added in industrial waste acid to make industrial waste acid pH value 7~9
Up to waste acidity recovery object.
Preferably, the foam stabilizer is carboxymethyl starch ether, triethanolamine and hydroxyethyl cellulose according to mass ratio 3:5:1
12~15 times are diluted after mixing to be made.
A kind of processing method of the aerated bricks containing waste acidity recovery object, comprising the following steps:
A, waste acidity recovery is handled: the spent acid after using is collected in spent acid pond, and quick lime is added wherein and constantly stirs
It mixes, detects spent acid pH value in spent acid pond after quick lime dissolution, when spent acid pH value is 7~9, stop that quick lime is added, it is naturally cold
But up to waste acid treatment object after；
B, mortar stirs: by remaining quick lime after cement, ardealite, silica sand, flyash, waste acidity recovery object processing spent acid
Deng the water for being added in blender and being added 0.6~0.7 times of gross mass, it is transferred to casting blender after mixing evenly in blender
In, aluminium powder and foam stabilizer are added wherein, being sufficiently stirred makes material that raw mixture be made after mixing；
C, it forms: raw mixture being transferred at the beginning of being transferred to 50~60 DEG C after mold and support 2~3h of maintenance in room, taken out to obtain the final product
Adobe body；
D, cut: adobe body obtained is transferred on cutting bed, and adobe body is cut into required size dimension after taking-up mold
Aerated bricks；
E, conserve: the aerated bricks after cutting are transferred in still kettle, are passed through steam heating, and nature is taken out after heating and is put
It sets 10~12 days and gets product aerated bricks.
Preferably, gas temperature is 180~195 DEG C in the still kettle, and pressure is 13~15MPa.
Preferably, which is characterized in that the steam heating time is 4~8h.
The beneficial effects of the present invention are:
1, the present invention obtains waste acidity recovery object after quick lime processing is added in the used sulfuric acid of industrial derusting or hydrochloric acid,
Harmful substance will not be generated in treatment process, can be reduced the dosage of gypsum and cement for producing aerated bricks, be realized waste again
It utilizes, reduces production cost, economize on resources, while the zero-emission of spent acid pollutant may be implemented.
2, by five waste acidity recovery processing, mortar stirring, molding, cutting and maintenance steps in aerated bricks production process
Processing obtains finished product aerated bricks, and procedure of processing is few, and method is simple, convenient for operation.It is added in process by carboxymethyl starch
Ether, triethanolamine and hydroxyethyl cellulose according to mass ratio 3:5:1 dilute 12~15 times after mixing made from foam stabilizer, can
Make aerated bricks even air hole distribution, improves air hole structure.
Specific embodiment
The present invention is further described in detail With reference to embodiment, but technical solution provided by the invention
It not only include the content showed in embodiment.
Embodiment 1
Step 1: preparing following raw material: 28 parts of quick lime, 31 parts of cement, 12 parts of ardealite, 108 parts of silica sand, powder
19 parts of coal ash, 1.4 parts of waste acidity recovery object, 8 parts of sodium metasilicate, 0.2 part of aluminium powder, 4 parts of foam stabilizer；
Step 2: waste acidity recovery is handled: the spent acid after using is collected in spent acid pond, and quick lime is added not wherein
Disconnected stirring detects spent acid pH value in spent acid pond after quick lime dissolution, when spent acid pH value is 7~9, stops that quick lime is added, from
So up to waste acid treatment object after cooling；
Step 3: mortar stirs: will be remaining after cement, ardealite, silica sand, flyash, waste acidity recovery object processing spent acid
Quick lime etc. is added in blender and is added 0.7 times of gross mass of water, is transferred to casting blender after mixing evenly in blender
In, aluminium powder and foam stabilizer are added wherein, being sufficiently stirred makes material that raw mixture be made after mixing；
Step 4: molding: raw mixture being transferred to support at the beginning of being transferred to 55 DEG C after mold and supports 3h in room, is taken out up to adobe
Body；
Step 5: cutting: adobe body obtained is transferred on cutting bed, and adobe body is cut into required size after taking-up mold
The aerated bricks of size；
Step 6: maintenance: the aerated bricks after cutting are transferred in still kettle, are passed through steam heating, are taken out after heating
Naturally it places 10 days and gets product aerated bricks.
Embodiment 2
Step 1: preparing following raw material: 28 parts of quick lime, 32 parts of cement, 14 parts of ardealite, 109 parts of silica sand, powder
17 parts of coal ash, 1.5 parts of waste acidity recovery object, 6~8 parts of sodium metasilicate, 0.2 part of aluminium powder, 2 parts of foam stabilizer；
Step 2: waste acidity recovery is handled: the spent acid after using is collected in spent acid pond, and quick lime is added not wherein
Disconnected stirring detects spent acid pH value in spent acid pond after quick lime dissolution, when spent acid pH value is 7~9, stops that quick lime is added, from
So up to waste acid treatment object after cooling；
Step 3: mortar stirs: will be remaining after cement, ardealite, silica sand, flyash, waste acidity recovery object processing spent acid
Quick lime etc. is added in blender and is added 0.6 times of gross mass of water, is transferred to casting blender after mixing evenly in blender
In, aluminium powder and foam stabilizer are added wherein, being sufficiently stirred makes material that raw mixture be made after mixing；
Step 4: molding: raw mixture being transferred at the beginning of being transferred to 60 DEG C after mold and conserve 2h in feeding room, taken out up to brick
Idiosome；
Step 5: cutting: adobe body obtained is transferred on cutting bed, and adobe body is cut into required size after taking-up mold
The aerated bricks of size；
Step 6: maintenance: the aerated bricks after cutting are transferred in still kettle, are passed through steam heating, are taken out after heating
Naturally it places 12 days and gets product aerated bricks.
Embodiment 3
Step 1: preparing following raw material: 30 parts of quick lime, 34 parts of cement, 14 parts of ardealite, 112 parts of silica sand, powder
18 parts of coal ash, 1.4 parts of waste acidity recovery object, 7 parts of sodium metasilicate, 0.4 part of aluminium powder, 2 parts of foam stabilizer；
Step 2: waste acidity recovery is handled: the spent acid after using is collected in spent acid pond, and quick lime is added not wherein
Disconnected stirring detects spent acid pH value in spent acid pond after quick lime dissolution, when spent acid pH value is 7~9, stops that quick lime is added, from
So up to waste acid treatment object after cooling；
Step 3: mortar stirs: will be remaining after cement, ardealite, silica sand, flyash, waste acidity recovery object processing spent acid
Quick lime etc. is added in blender and is added 0.7 times of gross mass of water, is transferred to casting blender after mixing evenly in blender
In, aluminium powder and foam stabilizer are added wherein, being sufficiently stirred makes material that raw mixture be made after mixing；
Step 4: molding: raw mixture being transferred at the beginning of being transferred to 60 DEG C after mold and conserve 2h in feeding room, taken out up to brick
Idiosome；
Step 5: cutting: adobe body obtained is transferred on cutting bed, and adobe body is cut into required size after taking-up mold
The aerated bricks of size；
Step 6: maintenance: the aerated bricks after cutting are transferred in still kettle, are passed through steam heating, are taken out after heating
Naturally it places 11 days and gets product aerated bricks.
The present invention obtains waste acidity recovery object after quick lime processing is added in the used sulfuric acid of industrial derusting or hydrochloric acid, locates
Harmful substance will not be generated during reason, can be reduced the dosage of gypsum and cement for producing aerated bricks, be realized that waste is sharp again
With reduction production cost economizes on resources, while the zero-emission of spent acid pollutant may be implemented.
Add in aerated bricks production process by five waste acidity recovery processing, mortar stirring, molding, cutting and maintenance steps
Work obtains finished product aerated bricks, and procedure of processing is few, and method is simple, convenient for operation.Be added in process by carboxymethyl starch ether,
Triethanolamine and hydroxyethyl cellulose according to mass ratio 3:5:1 dilute 12~15 times after mixing made from foam stabilizer, can make
Aerated bricks even air hole distribution improves air hole structure.
Hydrochloric acid after industrial derusting is after quick lime is handled, obtained waste acidity recovery analyte detection venomous injurant
It is as follows to obtain data for matter:
| Detection project | Measurement unit | Detected value | It is whether qualified |
| Mercury (in terms of total mercury) | mg/L | 0.0021 | It is |
| Copper (in terms of total copper) | mg/L | 0.0023 | It is |
| Beryllium (in terms of total beryllium) | mg/L | It is not detected | It is |
| Zinc (in terms of total zinc) | mg/L | 0.464 | It is |
| Lead (in terms of total lead) | mg/L | 0.0322 | It is |
| Cadmium (in terms of total cadmium) | mg/L | It is not detected | It is |
| Arsenic (in terms of total arsenic) | mg/L | 0.0330 | It is |
| Cr VI | mg/L | It is not detected | It is |
| Total chromium | mg/L | 0.0022 | It is |
| Barium (in terms of total barium) | mg/L | 0.513 | It is |
| Nickel (in terms of total nickel) | mg/L | 0.0452 | It is |
| Selenium (in terms of total selenium) | mg/L | It is not detected | It is |
Above-mentioned venomous injurant quality detection is according to " endangering waste judging standard leaching characteristic identification " (GB 5085.3-
2007) data obtained.By list data it is found that spent acid will not generate harmful substance during processing, it can be used for Building wood
The raw material of material.
The above described is only a preferred embodiment of the present invention, being not intended to limit the present invention in any form, appoint
What without departing from technical solution of the present invention content, according to the technical essence of the invention any modification to the above embodiments, etc.
With variation and modification, all of which are still within the scope of the technical scheme of the invention.
Claims (8)
1. a kind of aerated bricks containing waste acidity recovery object, which is characterized in that including following raw material: quick lime 26~33
Part, 30~34 parts of cement, 12~14 parts of ardealite, 105~115 parts of silica sand, 17~22 parts of flyash, waste acidity recovery object 1.2~
1.5 parts, 6~8 parts of sodium metasilicate, 0.2~0.3 part of aluminium powder, 2~4 parts of foam stabilizer.
2. a kind of aerated bricks containing waste acidity recovery object according to claim 1, which is characterized in that including following parts by weight
Raw material: 28 parts of quick lime, 31 parts of cement, 12 parts of ardealite, 108 parts of silica sand, 19 parts of flyash, 1.4 parts of waste acidity recovery object, silicic acid
8 parts of sodium, 0.2 part of aluminium powder, 4 parts of foam stabilizer.
3. a kind of aerated bricks containing waste acidity recovery object according to claim 1 or 2, which is characterized in that the spent acid is
The hydrochloric acid or sulfuric acid used by industrial derusting.
4. a kind of aerated bricks containing waste acidity recovery object according to claim 1 or 2, which is characterized in that the spent acid returns
Receiving object is that quick lime adjusting is added in industrial waste acid to make industrial waste acid pH value 7~9 up to waste acidity recovery object.
5. a kind of aerated bricks containing waste acidity recovery object according to claim 1 or 2, which is characterized in that the foam stabilizer
12~15 times of systems are diluted after mixing according to mass ratio 3:5:1 for carboxymethyl starch ether, triethanolamine and hydroxyethyl cellulose
?.
6. a kind of processing method of the aerated bricks containing waste acidity recovery object, which comprises the following steps:
A, waste acidity recovery is handled: the spent acid after using is collected in spent acid pond, and quick lime is added wherein and is stirred continuously, raw
Spent acid pH value in spent acid pond is detected after lime dissolution, when spent acid pH value is 7~9, stops that quick lime is added, is after natural cooling
Obtain waste acid treatment object；
B, mortar stirs: remaining quick lime after cement, ardealite, silica sand, flyash, waste acidity recovery object processing spent acid etc. is added
The water for entering in blender and being added 0.6~0.7 times of gross mass is transferred to after mixing evenly in casting blender in blender,
Aluminium powder and foam stabilizer is wherein added, being sufficiently stirred makes material that raw mixture be made after mixing；；
C, it forms: raw mixture being transferred at the beginning of being transferred to 50~60 DEG C after mold and support 2~3h of maintenance in room, taken out up to adobe
Body；
D, cut: adobe body obtained is transferred on cutting bed, and adobe body is cut into adding for required size dimension after taking-up mold
Gas brick；
E, conserve: the aerated bricks after cutting are transferred in still kettle, are passed through steam heating, and nature is taken out after heating and places 10
Get product aerated bricks within~12 days.
7. a kind of processing method of aerated bricks containing waste acidity recovery object according to claim 6, which is characterized in that described
Gas temperature is 180~195 DEG C in still kettle, and pressure is 13~15MPa.
8. a kind of processing method of aerated bricks containing waste acidity recovery object according to claim 6, which is characterized in that described
Steam heating time is 4~8h.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910074777.5A CN109704668A (en) | 2019-01-25 | 2019-01-25 | A kind of aerated bricks and its processing method containing waste acidity recovery object |
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| CN201910074777.5A CN109704668A (en) | 2019-01-25 | 2019-01-25 | A kind of aerated bricks and its processing method containing waste acidity recovery object |
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| JPH06157159A (en) * | 1992-11-18 | 1994-06-03 | Asahi Chem Ind Co Ltd | Molding method for lightweight cellular concrete |
| CN101254937A (en) * | 2008-03-24 | 2008-09-03 | 莱芜钢铁股份有限公司 | Method for producing liquid calcium chloride by using industry waste acid |
| CN103693670A (en) * | 2013-12-16 | 2014-04-02 | 乳源瑶族自治县东阳光化成箔有限公司 | Production method of calcium sulphate dehydrate and production device thereof |
| CN104557116A (en) * | 2014-12-30 | 2015-04-29 | 青建集团股份公司 | Aerated concrete block and preparation method thereof |
| CN106146005A (en) * | 2015-04-24 | 2016-11-23 | 天津市鑫盛达建材有限公司 | A kind of high-strength light steaming-free air-adding brick and preparation method thereof |
| CN108569869A (en) * | 2018-03-30 | 2018-09-25 | 广东怡兴食品有限公司 | A kind of high-moisture-retention seepage brick and preparation method thereof prepared by building reworked material |
-
2019
- 2019-01-25 CN CN201910074777.5A patent/CN109704668A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06157159A (en) * | 1992-11-18 | 1994-06-03 | Asahi Chem Ind Co Ltd | Molding method for lightweight cellular concrete |
| CN101254937A (en) * | 2008-03-24 | 2008-09-03 | 莱芜钢铁股份有限公司 | Method for producing liquid calcium chloride by using industry waste acid |
| CN103693670A (en) * | 2013-12-16 | 2014-04-02 | 乳源瑶族自治县东阳光化成箔有限公司 | Production method of calcium sulphate dehydrate and production device thereof |
| CN104557116A (en) * | 2014-12-30 | 2015-04-29 | 青建集团股份公司 | Aerated concrete block and preparation method thereof |
| CN106146005A (en) * | 2015-04-24 | 2016-11-23 | 天津市鑫盛达建材有限公司 | A kind of high-strength light steaming-free air-adding brick and preparation method thereof |
| CN108569869A (en) * | 2018-03-30 | 2018-09-25 | 广东怡兴食品有限公司 | A kind of high-moisture-retention seepage brick and preparation method thereof prepared by building reworked material |
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Application publication date: 20190503 |