CN114436553A - Method for recycling waste refractory materials in cement plant - Google Patents
Method for recycling waste refractory materials in cement plant Download PDFInfo
- Publication number
- CN114436553A CN114436553A CN202210116980.6A CN202210116980A CN114436553A CN 114436553 A CN114436553 A CN 114436553A CN 202210116980 A CN202210116980 A CN 202210116980A CN 114436553 A CN114436553 A CN 114436553A
- Authority
- CN
- China
- Prior art keywords
- pool
- bricks
- water
- sedimentation tank
- magnesium
- 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.)
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Classifications
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/16—Waste materials; Refuse from building or ceramic industry
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
A method for recycling waste refractory materials in a cement plant comprises the steps of respectively sorting waste silicon-mullite bricks, magnesium-iron bricks and magnesium-aluminum bricks, respectively crushing the waste silicon-mullite bricks, magnesium-iron bricks and magnesium-aluminum bricks into 0-8 mm aggregates by using a jaw crusher, then putting the crushed aggregates 0-8 into a No. 1 pool, soaking the aggregates for 10 hours, pumping the aggregates and water in the No. 1 pool into a No. 2 pool through a slurry pump, filtering the residual water in the No. 1 pool through a plate frame, then discharging the residual water into a sedimentation tank A, standing the water in a sedimentation tank B for pouring or spraying a road surface, standing the water in the No. 2 pool for 10 hours, then discharging the residual water into the No. 1 pool, pumping the aggregates in the No. 2 pool into a No. 3 pool, soaking the residual water in the No. 3 pool for 10 hours, pumping the aggregates in the No. 3 pool into a No. 4 pool, then pumping the residual water in the No. 4 pool into the No. 3 pool, pumping the residual water in the No. 4 pool into a place where the waste refractory materials can be aired or dried, and (4) reusing.
Description
Technical Field
The invention relates to a method for recycling waste refractory materials in a cement plant.
Background
At present, with the continuous increase of the cement consumption, the maintenance amount of a cement kiln is larger and larger, after the cement kiln is dismantled, more and more waste siliceous mullite bricks, magnesia-iron bricks and magnesia-alumina bricks are produced, and the waste refractory materials contain a lot of available components.
Disclosure of Invention
In order to overcome the defects that the maintenance amount of a cement kiln is larger and larger, and waste silicon mullite bricks, magnesium iron bricks and magnesium aluminum bricks are more and more after the cement kiln is dismantled, if the waste silicon mullite bricks, magnesium iron bricks and magnesium aluminum bricks are directly thrown away, resources are wasted in white and a large amount of land is occupied, the invention provides a method for recycling waste refractory materials of a cement plant, which can extract some available materials from the waste silicon mullite bricks, magnesium iron bricks and magnesium aluminum bricks of people, not only saves the refractory material resources, but also can reduce the defect that a large amount of land is occupied in the process of stacking and storing the waste refractory materials, and can obtain obvious economic benefit and social benefit.
The technical scheme adopted by the invention for solving the technical problems is as follows: respectively sorting waste silicon-mullite bricks, magnesium-iron bricks and magnesium-aluminum bricks, dividing the silicon-mullite bricks into a group, dividing the magnesium-iron bricks and the magnesium-aluminum bricks into a group, respectively crushing the silicon-mullite bricks and the magnesium-aluminum bricks into 0-8 mm aggregates by using a jaw crusher, then putting the crushed 0-8 aggregates into a No. 1 pool, soaking the aggregates in No. 1 pool water for 10 hours, pumping the aggregates and water in the No. 1 pool into a No. 2 pool through a slurry pump, filtering the residual water in the No. 1 pool through a plate frame, discharging the residual water into a sedimentation pool A, filtering, using a small amount of residual waste residue in the pool as a material for paving a roadbed, dividing the sedimentation pool into a sedimentation pool A and a sedimentation pool B, standing the water in the sedimentation pool A for 1 day, discharging the residual water into the sedimentation pool B for later use, wherein the sedimentation pool A is an empty pool and can be used as a standby pool for next drainage, standing the water in the sedimentation pool B for hours, and pouring or spraying a road surface, or the concrete is supplied to a construction site for stirring concrete, the water in the No. 2 pool is discharged into the No. 1 pool after standing for 10 hours, the aggregate in the No. 2 pool is pumped into the No. 3 pool, the water in the No. 3 pool is discharged into the No. 2 pool after being soaked in the No. 3 pool for 10 hours, the aggregate in the No. 3 pool is pumped into the No. 4 pool, the water in the No. 4 pool is discharged into the No. 3 pool after being soaked in the No. 4 pool for 10 hours, the aggregate in the No. 4 pool is pumped to a place where airing or drying can be carried out, the aggregate is reused after being aired or dried, and then the clear water is injected into the No. 4 pool.
The invention has the advantages of reusing the waste refractory materials, saving resources and reducing the land occupation of accumulation and storage of the waste refractory materials.
Claims (7)
1. A method for recycling waste refractory materials in a cement plant is characterized by comprising the following steps: respectively sorting the waste silicon mullite bricks, the magnesium iron bricks and the magnesium aluminum bricks, grouping the silicon mullite bricks into one group, grouping the magnesium iron bricks and the magnesium aluminum bricks into one group, and then respectively crushing the silicon mullite bricks, the magnesium iron bricks and the magnesium aluminum bricks into 0-8 mm aggregates by using a jaw crusher.
2. The method as claimed in claim 1, wherein the method comprises the steps of: and putting the crushed 0-8 aggregate into a No. 1 pool, soaking the aggregate in the water in the No. 1 pool for 10 hours, pumping the aggregate and the water in the No. 1 pool into a No. 2 pool through a slurry pump, and discharging the residual water in the No. 1 pool into a sedimentation tank A after filtering through a plate frame.
3. The method as claimed in claim 1, wherein the method comprises the steps of: the sedimentation tank is divided into a sedimentation tank A and a sedimentation tank B.
4. The method as claimed in claim 1, wherein the method comprises the steps of: and (3) standing the water in the sedimentation tank A for 1 day, and then discharging the water into a sedimentation tank B for later use, wherein the sedimentation tank A is an empty tank and can be used as a standby tank for next water discharge.
5. The method as claimed in claim 1, wherein the method comprises the steps of: and the water in the No. 2 pool is discharged into the No. 1 pool after standing for 10 hours, and the aggregate in the No. 2 pool is pumped into the No. 3 pool.
6. The method as claimed in claim 1, wherein the method comprises the steps of: and discharging water in the No. 3 pool into the No. 2 pool, and pumping aggregate in the No. 3 pool into the No. 4 pool.
7. The method as claimed in claim 1, wherein the method comprises the steps of: and (4) discharging water in the No. 4 pool into the No. 3 pool, and pumping aggregate in the No. 4 pool to a place capable of being aired or dried for reuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210116980.6A CN114436553A (en) | 2022-01-25 | 2022-01-25 | Method for recycling waste refractory materials in cement plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210116980.6A CN114436553A (en) | 2022-01-25 | 2022-01-25 | Method for recycling waste refractory materials in cement plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114436553A true CN114436553A (en) | 2022-05-06 |
Family
ID=81372492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210116980.6A Withdrawn CN114436553A (en) | 2022-01-25 | 2022-01-25 | Method for recycling waste refractory materials in cement plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114436553A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101880169A (en) * | 2010-05-26 | 2010-11-10 | 上海大学 | Comprehensive treatment method for recycling used MgO-C bricks from converter ladles |
| JP2013126927A (en) * | 2011-12-19 | 2013-06-27 | Jfe Steel Corp | Method for recycling used magnesia-carbon brick |
| CN104761265A (en) * | 2015-03-16 | 2015-07-08 | 通达耐火技术股份有限公司 | Secondary SiC/mullite brick recycle pre-treatment process |
| CN105859307A (en) * | 2016-03-30 | 2016-08-17 | 重庆钢铁(集团)有限责任公司 | Method for processing and recovering carboniferous waste fireproof materials |
| CN113248268A (en) * | 2021-04-25 | 2021-08-13 | 北京金隅通达耐火技术有限公司 | Recycling method of used cement kiln bricks |
-
2022
- 2022-01-25 CN CN202210116980.6A patent/CN114436553A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101880169A (en) * | 2010-05-26 | 2010-11-10 | 上海大学 | Comprehensive treatment method for recycling used MgO-C bricks from converter ladles |
| JP2013126927A (en) * | 2011-12-19 | 2013-06-27 | Jfe Steel Corp | Method for recycling used magnesia-carbon brick |
| CN104761265A (en) * | 2015-03-16 | 2015-07-08 | 通达耐火技术股份有限公司 | Secondary SiC/mullite brick recycle pre-treatment process |
| CN105859307A (en) * | 2016-03-30 | 2016-08-17 | 重庆钢铁(集团)有限责任公司 | Method for processing and recovering carboniferous waste fireproof materials |
| CN113248268A (en) * | 2021-04-25 | 2021-08-13 | 北京金隅通达耐火技术有限公司 | Recycling method of used cement kiln bricks |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220506 |
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| WW01 | Invention patent application withdrawn after publication |