CN203642660U - Shaft kiln for recovering and treating waste magnesia carbon bricks - Google Patents
Shaft kiln for recovering and treating waste magnesia carbon bricks Download PDFInfo
- Publication number
- CN203642660U CN203642660U CN201320731591.0U CN201320731591U CN203642660U CN 203642660 U CN203642660 U CN 203642660U CN 201320731591 U CN201320731591 U CN 201320731591U CN 203642660 U CN203642660 U CN 203642660U
- Authority
- CN
- China
- Prior art keywords
- shaft kiln
- magnesia carbon
- distributing device
- natural gas
- waste magnesia
- 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.)
- Expired - Lifetime
Links
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 239000011449 brick Substances 0.000 title claims abstract description 26
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 239000000395 magnesium oxide Substances 0.000 title claims abstract description 19
- 239000002699 waste material Substances 0.000 title claims abstract description 17
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 238000001816 cooling Methods 0.000 claims abstract description 14
- 238000007599 discharging Methods 0.000 claims abstract description 11
- 239000003345 natural gas Substances 0.000 claims abstract description 11
- 238000002485 combustion reaction Methods 0.000 claims description 14
- 238000004064 recycling Methods 0.000 claims description 10
- 238000001354 calcination Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000011819 refractory material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
Landscapes
- Furnace Details (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The utility model relates to a shaft kiln for recovering and treating waste magnesia carbon bricks. The shaft kiln comprises a distributing device, a feeding screw, a heating bin, a cooling bin, a rotary discharging device, a natural gas nozzle and a combustion-supporting air pipeline, wherein the distributing device is arranged at the top end of the shaft kiln; the feeding screw is mounted at the lower part of the distributing device; the feeding screw, the heating bin, the cooling bin and the rotary discharging device are connected in sequence from top to bottom; the natural gas nozzle is fixed on the heating bin; the combustion-supporting air pipeline is arranged on the cooling bin. The shaft kiln has the advantages that the structure is reasonable, the production efficiency is high, the calcination temperature and calcination atmosphere are controllable, and treated waste bricks are uniform and stable in quality.
Description
Technical field
The utility model relates to the recycling field with refractory, relates in particular to a kind of waste magnesia carbon brick recycling shaft furnace.
Background technology
At present, the refractory material of smelting iron and steel stove use amount maximum is exactly magnesia carbon brick, and with after waste magnesia carbon bricks account for 30%～40% of its consumption, have every year hundreds of thousands ton waste magnesia carbon bricks, how processing and make full use of a large amount of waste magnesia carbon bricks has become heat subject.China's research is in this respect started late, and technology is still not overripened, and the specialized apparatus that is specifically designed to waste refractory materials recycling is also considerably less.For being that it is classified by the common way of rear magnesia carbon brick recycling, the useless brick of excision corrodes metamorphic layer, water washing dedust impurity elimination, and aquation is except Al
4c
3, fragmentation, the constitution water after the material aquation such as MgO, CaO is removed in calcining, and the operation such as granulation homogenizing processing, finally obtains regenerative magnesia-carbon brick raw material.It is a committed step that constitution water is removed in calcining, if the bad constitution water that will cause of calcining heat and atmosphere control is removed thoroughly and the oxidation of graphite, consequently affects the quality of reclaimed materials, affects the result of use of regenerative magnesia-carbon brick.
In recent years, although part refractory material enterprise also starts to utilize these discarded magnesia carbon bricks, great majority are all coarse utilizations, processing is processed scientific and reasonable not, and recovery utilization rate is not high, and automaticity is low, the useless brick recycling cycle is longer, and unstable product quality.
Summary of the invention
For overcoming the deficiencies in the prior art, the purpose of this utility model is to provide a kind of waste magnesia carbon brick recycling shaft furnace, and this shaft furnace is rational in infrastructure, and production efficiency is higher, and calcining heat and atmosphere are controlled, and useless brick material quality is after treatment even, stable.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of waste magnesia carbon brick recycling shaft furnace, comprise distributing device, pressure feeding spiral, heating cabinet, cooling storehouse, rotary discharging device, natural gas combustion nozzle, combustion air pipeline, distributing device is arranged on shaft furnace top, pressure feeding spiral is arranged on distributing device bottom, pressure feeding spiral, heating cabinet, cooling storehouse, rotary discharging device are connected from top to bottom successively, natural gas combustion nozzle is fixed on heating cabinet, and combustion air pipeline is located on cooling storehouse.
Compared with prior art, the beneficial effects of the utility model are:
This shaft furnace is rational in infrastructure, and production efficiency is higher, and useless brick material quality is after treatment even, stable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: the 5-rotary discharging device 6-natural gas combustion nozzle 7-combustion air pipeline of the cooling storehouse of 1-distributing device 2-pressure feeding spiral 3-heating cabinet 4-.
The specific embodiment
Below in conjunction with Figure of description, the utility model is described in detail, but should be noted that enforcement of the present utility model is not limited to following embodiment.
See Fig. 1, a kind of waste magnesia carbon brick recycling shaft furnace, comprise distributing device 1, pressure feeding spiral 2, heating cabinet 3, cooling storehouse 4, rotary discharging device 5, natural gas combustion nozzle 6, combustion air pipeline 7, distributing device 1 is arranged on shaft furnace top, pressure feeding spiral 2 is arranged on distributing device 1 bottom, pressure feeding spiral 2, heating cabinet 3, cooling storehouse 4, rotary discharging device 5 are connected from top to bottom successively, and natural gas combustion nozzle is fixed on heating cabinet 3, and combustion air pipeline 7 is located on cooling storehouse 4.
Waste magnesia carbon brick granularity material enters shaft furnace from distributing device 1, thereby makes 360 °, the waste magnesia carbon brick granularity material sent into enter uniformly heating cabinet 3 through pressure feeding spiral 2; Utilize natural gas combustion nozzle 6 to heat for heating cabinet 3, the waste magnesia carbon brick granularity material after heating enters cooling storehouse 4 lowers the temperature, and finally by 360 ° of uniform dischargings of rotary discharging device, completes the processing processing of waste magnesia carbon brick granularity material.
Employing natural gas is fuel, and efficient energy-saving and environmental protection can make the temperature of heating cabinet 3 up to more than 400 ℃.
This shaft furnace of the utility model automaticity is higher, rational in infrastructure, and production efficiency is higher, and calcining heat and atmosphere are controlled, and useless brick material quality is after treatment even, stable.
Claims (1)
1. a waste magnesia carbon brick recycling shaft furnace, it is characterized in that, comprise distributing device, pressure feeding spiral, heating cabinet, cooling storehouse, rotary discharging device, natural gas burner, combustion air pipeline, distributing device is arranged on shaft furnace top, pressure feeding spiral is arranged on distributing device bottom, pressure feeding spiral, heating cabinet, cooling storehouse, rotary discharging device are connected from top to bottom successively, and natural gas combustion nozzle is fixed on heating cabinet, and combustion air pipeline is located on cooling storehouse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320731591.0U CN203642660U (en) | 2013-11-19 | 2013-11-19 | Shaft kiln for recovering and treating waste magnesia carbon bricks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320731591.0U CN203642660U (en) | 2013-11-19 | 2013-11-19 | Shaft kiln for recovering and treating waste magnesia carbon bricks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203642660U true CN203642660U (en) | 2014-06-11 |
Family
ID=50873896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320731591.0U Expired - Lifetime CN203642660U (en) | 2013-11-19 | 2013-11-19 | Shaft kiln for recovering and treating waste magnesia carbon bricks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203642660U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114147040A (en) * | 2021-12-29 | 2022-03-08 | 中冶焦耐(大连)工程技术有限公司 | Integrated treatment device and method for waste magnesia carbon bricks |
-
2013
- 2013-11-19 CN CN201320731591.0U patent/CN203642660U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114147040A (en) * | 2021-12-29 | 2022-03-08 | 中冶焦耐(大连)工程技术有限公司 | Integrated treatment device and method for waste magnesia carbon bricks |
| CN114147040B (en) * | 2021-12-29 | 2024-06-11 | 中冶焦耐(大连)工程技术有限公司 | Integrated processing device and method for waste magnesium carbon bricks |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140611 |