CN110423084A - A kind of environmental protection process for producing bricks - Google Patents
A kind of environmental protection process for producing bricks Download PDFInfo
- Publication number
- CN110423084A CN110423084A CN201910815686.2A CN201910815686A CN110423084A CN 110423084 A CN110423084 A CN 110423084A CN 201910815686 A CN201910815686 A CN 201910815686A CN 110423084 A CN110423084 A CN 110423084A
- Authority
- CN
- China
- Prior art keywords
- raw material
- solid waste
- environmental protection
- particle
- desulfurized gypsum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/142—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements
- C04B28/144—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being a flue gas desulfurization product
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of environmentally friendly process for producing bricks, preparation is completed by multi-step using building solid waste, desulfurized gypsum etc., solid waste is built by crushing and forming particle solid waste raw material and powder solid waste raw material after milled processed, the production cost of environmental protection brick can also be reduced, after raw material is prepared as semi-finished product brick, being conserved under certain temperature and damp condition finally being capable of export structure intensity is high, quality is stable finished bricks.Above-mentioned preparation process is simple, prepares final product quality height, is more suitable for large-scale industrial production manufacture.
Description
Technical field
The present invention relates to technical field of buildings, and in particular to a kind of environmental protection process for producing bricks.
Background technique
Now, with the continuous improvement of China's Living consumption so that its for the requirement in terms of house also increasingly
It is high.It is well known that the status of building material in the market is being continuously improved, wherein the injection of environment-friendly and green theory has also been obtained very
The favor of more consumers.It can be seen that pollution-free, free from extraneous odour, will without harmful radioactive materials, noise-free environmentally-friendly class building materials
Huge effect is played in pushing the sustainable development of China's building trade, selects and also will centainly become me using this kind of building materials
The main trend of state's construction market.
Currently, infrastructure construction in china engineering still depends on greatly under the background of China's building trade fast development
The use of concrete is measured, and a large amount of building solid waste can be generated, it is very low to the utilization rate of building solid waste at present, it will cause certain
The pollution of degree.Therefore, it is necessary to pay attention to and reinforce the research and application to materials such as building solid wastes.
Summary of the invention
It for the defects in the prior art, should it is an object of the invention to propose a kind of environmentally friendly process for producing bricks provided
Technique can prepare environmental protection brick using building solid waste, and the raw material sources which is utilized are cheap, environmental protection, effective to reduce
The production cost of environmental protection brick；Its specific technical solution is as follows:
A kind of environmental protection process for producing bricks, including following preparation step:
The preparation of step 1. raw material, quantitative must build solid waste and be crushed to obtain particle solid waste raw material, then by partial particulate
Solid waste raw material is ground and screens to obtain powder solid waste raw material；Quantitative obtains desulfurized gypsum and is crushed to obtain particle desulfurization stone
Cream raw material.
Step 2. raw material stirring: using mixing plant that particle solid waste raw material, particle desulfurized gypsum raw material, powder solid waste is former
Material, additive and cement are mixed, and obtain that raw material is mixed.
Step 3. compression moulding: it will be mixed in raw material merging molding die, which be placed in press machine
Semi-finished product brick is obtained by compacting.
Step 4. maintenance output: semi-finished product brick is sent into double of finished bricks in curing room through stacking machine, hoist engine and is supported
Shield, semi-finished product brick are exported after conserving 3-12h under the curing condition that temperature is 10-40 DEG C, humidity is 40%-60%, are obtained into
Product brick.
The technical program provides a kind of environmentally friendly process for producing bricks, passes through multiple step using building solid waste, desulfurized gypsum etc.
Rapid to complete preparation, solid waste construction material has ingredient and property required for construction material, can make construction material, In
Building solid waste is crushed using preceding.Solid waste is built by crushing and forming particle solid waste raw material and powder solid waste after milled processed
Raw material is good for the environment brick production and forms, herein in connection with desulfurized gypsum, desulfurized gypsum main component and natural stone in environmental protection brick raw material
Cream is the same, and the SO2 contained in gypsum is removed SO by slurry wash device2, the industries such as building materials are widely used in, desulfurization stone is utilized
Cream can reduce the yield of ore cream, protect mineral resources, can also reduce the production cost of environmental protection brick, is prepared by raw material
After semi-finished product brick, being conserved under certain temperature and damp condition finally can export structure intensity be high, quality is stable
Finished bricks.Above-mentioned preparation process is simple, prepares final product quality height, is more suitable for large-scale industrial production manufacture.
Preferred technical solution, additional technical feature are that the desulfurized gypsum builds solid waste, cement and additive
Counterweight is carried out by measuring chute；And desulfurized gypsum, building solid waste, cement and additive weight proportion be 50:24.7:15:
0.3。
Preferred technical solution, additional technical feature be, the desulfurized gypsum is desulfurized gypsum, and desulfurized gypsum
Middle sulfur content is less than or equal to the 0.3% of desulfurized gypsum total weight.
Preferred technical solution, additional technical feature are that the silica weight contained in the building solid waste is big
In or equal to building solid waste total weight 30%.
Preferred technical solution, additional technical feature be, the particle solid waste raw material and particle desulfurized gypsum raw material
Particle diameter be 20-30mm.
Preferred technical solution, additional technical feature are that the particle diameter of the powder solid waste raw material is 0.5-
6mm。
Preferred technical solution, additional technical feature are that in step 2, various raw materials are added in mixing plant
Sequencing are as follows: particle desulfurized gypsum raw material, particle solid waste raw material, cement, powder solid waste raw material are eventually adding after dilution
Liquid additive.
Preferred technical solution, additional technical feature are that the diluted concentration of liquid additive is 0.03%.
Preferred technical solution, additional technical feature are that in step 2, mixed raw material is successively stirred at low speed
With high-speed stirred, wherein stirring at low speed the real time is 1-2min, the high-speed stirred time is 30s, is obtained after high-speed stirred
Raw material is mixed.
Preferred technical solution, additional technical feature are that in step 3, press machine suppresses molding die for the first time
After be exhausted, apply dwell pressure again after the completion of exhaust, wherein dwell pressure is 500-1200kg/cm2, when pressure maintaining a length of 5-
10s。
The beneficial effects of the present invention are: urban architecture solid waste is made environmental protection brick by the manufacture craft, it can
To reduce the discharge amount of waste material of buildings, the production cost of environmental protection brick can also be reduced, is suitble to large-scale industrial production.The present invention
The drawbacks of efficiently solving Traditional Environmental-protection brick improves the quality of environmental protection brick, and raw material sources are cheap, and environmental protection effectively subtracts
The production cost of environmental protection brick is lacked.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar element
Or part is generally identified by similar appended drawing reference.In attached drawing, each element or part might not be drawn according to actual ratio.
Fig. 1 is the preparation flow figure for the environmentally friendly process for producing bricks that an embodiment provides.
Specific embodiment
Here, it is to be noted that, function of the present invention, method etc. are only that the conventional adaptation of the prior art is answered
With.Therefore, improvement of the present invention for the prior art, the connection relationship being substantially between hardware, rather than it is directed to function, method
Itself, although namely the present invention be related to some functions, method, and do not include the improvement proposed to function, method itself.This hair
The bright description for function, method is in order to better illustrate the present invention, to better understand the present invention.
Embodiment one
As shown in Figure 1, in example 1, the present invention provides a kind of environmentally friendly process for producing bricks, it is main using building solid waste,
The raw materials such as desulfurized gypsum complete preparation, including following preparation step by multi-step:
The preparation of step 1. raw material, quantitative must build solid waste and be crushed to obtain particle solid waste raw material, then by partial particulate
Solid waste raw material is ground and screens to obtain powder solid waste raw material；Quantitative obtains desulfurized gypsum and is crushed to obtain particle desulfurization stone
Cream raw material.
The stirring of step 2. raw material: particle solid waste raw material, particle desulfurized gypsum raw material, powder solid waste raw material are mixed and added into
Additive and cement, which are stirred to obtain, is mixed raw material.
Step 3. compression moulding: it will be mixed in raw material merging molding die, which be placed in press machine
Semi-finished product brick is obtained by compacting.
Step 4. maintenance output: semi-finished product brick is sent into double of finished bricks in curing room through stacking machine, hoist engine and is supported
Shield, semi-finished product brick are exported after conserving 3-12h under the curing condition that temperature is 10-40 DEG C, humidity is 40%-60%, are obtained into
Product brick.
Desulfurized gypsum employed in above-mentioned preparation step, building solid waste, cement and additive are matched by measuring chute
Weight；And desulfurized gypsum, building solid waste, cement and additive weight proportion be 50:24.7:15:0.3.By desulfurized gypsum, build
Building solid waste, cement and additive can be improved the Forming Quality of environmental protection brick according to said ratio mixing.
The desulfurized gypsum used in the present embodiment is desulfurized gypsum, and sulfur content is less than or equal to desulfurization stone in desulfurized gypsum
The 0.3% of cream total weight.Desulfurized gypsum main component is calcium sulphate dihydrate CaSO as the natural gypsum4·2H2O, content >=
93%.Desulfurized gypsum is the byproduct of FGD process, and FGD process is one using lime-coal-fired or oily flue gas of lime stone recycling
In sulfur dioxide technology.The technology is lime-lime stone to be ground slurries are made, and makes to contain SO after dedusting2Cigarette
Gas removes SO by slurry wash device2.Lime slurry and SO2Reaction generates calcium sulfate and calcium sulfite, and calcium sulfite is through aoxidizing
It is converted to calcium sulfate, obtains industry by-product gypsum, referred to as desulfurized gypsum, is widely used in the industries such as building materials.Greatly reduce ore
The yield of cream, protects resource, can reduce the cost of environmental protection brick preparation.
The silica weight contained in the building solid waste used in the present embodiment is greater than or equal to building solid waste total weight
30%.
In broken building solid waste and desulfurized gypsum, the particle diameter of particle solid waste raw material and particle desulfurized gypsum raw material is
20-30mm.It can be screened by BLUE PRINT MACHINE after broken, the building solid waste and desulfurized gypsum of degree of crushing not up to can be straight
It is crushed again.
Powder solid waste raw material when in use due to needing the building solid waste of mixing powdery in the feed, in the present embodiment
Particle diameter be 0.5-6mm.The building solid waste of powder dress is formed by the building solid waste of abrasive grains shape, after the completion of grinding
It can be selected by sieve, it is ensured that powdered building solid waste particle diameter reaches requirement.
In step 2, the sequencing of raw material mixing are as follows: first particle desulfurized gypsum is added in mixing plant, adds
Particle solid waste raw material, is then added cement, and powder solid waste raw material is then added, and is eventually adding the liquid addition after dilution
Agent.In the present embodiment, the diluted concentration of liquid additive is 0.03%, and various raw materials are added in sequence after the completion of mixing, can
Promote the molding of environmental protection brick by liquid additive.
In order to ensure raw material mixed effect, in step 2, mixed raw material is successively stirred at low speed and high-speed stirred,
In stir at low speed the real time be 1-2min, the high-speed stirred time be 30s, obtained after high-speed stirred be mixed raw material.
By high speed with stir at low speed after can ensure that degree of mixing of feed materials, improve environmental protection brick production quality.
In compression moulding, press machine is exhausted press machine after being suppressed for the first time molding die, applies again after the completion of exhaust
Add dwell pressure, wherein dwell pressure is 500-1200kg/cm2, when pressure maintaining a length of 5-10s.Under above-mentioned effect, environmental protection brick is each
Part uniform force, quality is closely knit, further improves the structural strength of environmental protection brick.
When double of finished bricks is conserved, need in the curing condition that temperature is 10-40 DEG C, humidity is 40%-60%
Lower maintenance.In the case where conserving indoor temperature and damp condition, environmental protection brick can be promoted to form, the structure for improving environmental protection brick is strong
Degree.
It acts synergistically between each step each component in the present invention, reaches the desired effect of the present invention jointly, it is of the invention
Most preferred embodiment, resulting environmental protection brick compression strength improve 50.7% compared to the prior art, and resulting environmental protection brick is anti-
Folding intensity improves 35.5% compared to the prior art, and resulting environmental protection brick bulk density improves compared to the prior art
30%, resulting environmental protection brick internal bond strength improves 30% compared to the prior art, resulting environmental protection brick water absorption rate phase
Reduce 30% compared with the prior art.
In specification of the invention, numerous specific details are set forth.It is to be appreciated, however, that the embodiment of the present invention can
To practice without these specific details.In some instances, well known method, system and skill is not been shown in detail
Art, so as not to obscure the understanding of this specification.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
It so can be to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features
It is equivalently replaced；And these are modified or replaceed, various embodiments of the present invention skill that it does not separate the essence of the corresponding technical solution
The range of art scheme should all cover within the scope of the claims and the description of the invention.
Claims (10)
1. a kind of environmental protection process for producing bricks, which is characterized in that including following preparation step:
S1. prepared by raw material, and quantitative must build solid waste and is crushed to obtain particle solid waste raw material, then by partial particulate solid waste raw material
It is ground and screens to obtain powder solid waste raw material；Quantitative obtains desulfurized gypsum and is crushed to obtain particle desulfurized gypsum raw material；
S2. raw material stirs: utilizing mixing plant by particle solid waste raw material, particle desulfurized gypsum raw material, powder solid waste raw material, addition
Agent and cement are mixed；It obtains that raw material is mixed；
S3. compression moulding: it will be mixed in raw material merging molding die, which be placed in press machine by compacting
Obtain semi-finished product brick；
S4. maintenance output: being sent into double of finished bricks in curing room through stacking machine, hoist engine for semi-finished product brick and conserve, half at
Product brick exports after conserving 3-12h under the curing condition that temperature is 10-40 DEG C, humidity is 40%-60%, obtains finished bricks.
2. environmental protection process for producing bricks according to claim 1, which is characterized in that the desulfurized gypsum, building solid waste, cement
Counterweight is carried out by measuring chute with additive；And desulfurized gypsum, building solid waste, cement and additive weight proportion be 50:
24.7:15:0.3.
3. it is according to claim 1 environmental protection process for producing bricks, which is characterized in that in the desulfurized gypsum sulfur content be less than etc.
In the 0.3% of desulfurized gypsum total weight.
4. environmental protection process for producing bricks according to claim 1, which is characterized in that the titanium dioxide contained in the building solid waste
Silicon weight is greater than or equal to the 30% of building solid waste total weight.
5. environmental protection process for producing bricks according to claim 1, which is characterized in that the particle solid waste raw material and particle desulfurization
The particle diameter of gypsum raw material is 20-30mm.
6. environmental protection process for producing bricks according to claim 1, which is characterized in that the particle diameter of the powder solid waste raw material
For 0.5-6mm.
7. environmental protection process for producing bricks according to claim 1, which is characterized in that in S2, various raw materials are added stirring and set
Standby interior sequencing are as follows: particle desulfurized gypsum raw material, particle solid waste raw material, cement, powder solid waste raw material, be eventually adding by
Liquid additive after dilution.
8. environmental protection process for producing bricks according to claim 7, which is characterized in that the diluted concentration of the liquid additive is
0.03%.
9. environmental protection process for producing bricks according to claim 1, which is characterized in that in S2, mixed raw material successively carries out low
Speed stirring and high-speed stirred, wherein stirring at low speed the real time is 1-2min, the high-speed stirred time is 30s, by high-speed stirred
After obtain be mixed raw material.
10. environmental protection process for producing bricks according to claim 1, which is characterized in that in S3, press machine is to molding die head
It is exhausted after secondary compacting, applies dwell pressure again after the completion of exhaust, wherein dwell pressure is 500-1200kg/cm2, when pressure maintaining
A length of 5-10s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910815686.2A CN110423084A (en) | 2019-08-30 | 2019-08-30 | A kind of environmental protection process for producing bricks |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910815686.2A CN110423084A (en) | 2019-08-30 | 2019-08-30 | A kind of environmental protection process for producing bricks |
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| Publication Number | Publication Date |
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| CN110423084A true CN110423084A (en) | 2019-11-08 |
Family
ID=68416809
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| CN201910815686.2A Pending CN110423084A (en) | 2019-08-30 | 2019-08-30 | A kind of environmental protection process for producing bricks |
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Application publication date: 20191108 |