CN202747313U - Waste heat boiler for comprehensive utilization of industrial waste in aluminum factory - Google Patents
Waste heat boiler for comprehensive utilization of industrial waste in aluminum factory Download PDFInfo
- Publication number
- CN202747313U CN202747313U CN2012203798880U CN201220379888U CN202747313U CN 202747313 U CN202747313 U CN 202747313U CN 2012203798880 U CN2012203798880 U CN 2012203798880U CN 201220379888 U CN201220379888 U CN 201220379888U CN 202747313 U CN202747313 U CN 202747313U
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- chamber
- heat boiler
- heating surface
- burner hearth
- waste heat
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
Abstract
The utility model discloses a waste heat boiler for comprehensive utilization of industrial waste in an aluminum factory, belongs to the boiler industry, and solves the problems that a large amount of industrial waste-red mud is produced in the aluminum making industry, a lot of high-temperature waste gas can be produced after roasting reprocessing of the red mud, and the environment is polluted and a lot of heat is wasted after emission. The waste heat boiler mainly comprises a chamber and a water cooling system, wherein the chamber is supported by a steel frame, a flue gas inlet is arranged over the chamber, a flue gas outlet is arranged under the chamber, and a soot receiving device is arranged at the bottom of the chamber; and a flue gas pre-cooling setting chamber, a soot blower, a superheated steam system and a tail heat exchange system are arranged in the chamber; the water cooling system comprises a steam drum, an ascending-descending pipe system, a water cooling screen and a convection heating surface, the water cooling screen and the convection heating surface are installed in the chamber, the steam drum is installed on the steel frame, and the water cooling screen and the convection heating surface are connected with the steam drum through the ascending-descending pipe system. The waste heat boiler is mainly used for burning the red mud.
Description
Technical field
The utility model belongs to field of boilers, specifically, relates in particular to a kind of aluminium manufacturer industrial waste comprehensive utilization waste heat boiler.
Background technology
The industrial waste that aluminium industry produces is mainly red mud, red mud is that bauxite is after aluminium oxide is produced in various physics and chemistries processing, the strong basicity solid waste of remaining red powder mud shape high-moisture, the every production of general low-grade bauxite 1T aluminium oxide will produce the red mud of 1～1.75T.There is following problem in the stacking of red mud: 1, occupy a large amount of soils, expend more stockyard construction and maintenance cost; 2, be present in alkali in the red mud to subsurface wastewater infiltration system, cause the pollution of body of groundwater and soil; 3, the dust of exposed red mud formation flies upward with the wind, and atmosphere pollution causes the deterioration of the ecological environment.Red mud is being turned round roasting in kilns, extract valuable metal in the red mud, residue behind the extraction valuable metal carries out firing of cement again, in this process, can produce a large amount of high-temp waste gas, by supporting waste heat boiler, can reclaim the most of heat in the high-temp waste gas, reach further energy-saving and cost-reducing effect.
The utility model content
Aluminium industry produces a large amount of industrial waste---red muds in the prior art in order to solve, after red mud carried out roasting reprocessing, can produce a large amount of high-temp waste gas, the defective that has environmental pollution after the discharging and waste amount of heat, the utility model provide a kind of aluminium manufacturer industrial waste comprehensive utilization waste heat boiler.
The utility model is achieved through the following technical solutions:
A kind of aluminium manufacturer industrial waste comprehensive utilization waste heat boiler, comprise burner hearth, water-cooling system, burner hearth is supported by steelframe, the burner hearth top is provided with gas approach, the burner hearth below is provided with exhanst gas outlet, the bottom is provided with ash dropped unit, is provided with flue gas precooling expansion chamber, soot blower, superheated steam system and afterbody heat-exchange system in the burner hearth; Described water-cooling system comprises drum, rise and fall guard system, water-cooling screen and convection heating surface, and water-cooling screen and convection heating surface are installed in the burner hearth, and drum is installed on the steelframe, and water-cooling screen is connected with drum by the rise and fall guard system with convection heating surface.
Described superheated steam system comprises superheater header, superheater bank and Desuperheating device.
Described flue gas precooling expansion chamber adopts membrane wall structure.
Described soot blower is thermal explosion impact wave soot blower.
Described convection heating surface adopts the assembly type of attachment of upper lower header.
Compared with prior art, the beneficial effects of the utility model are:
Adopt the flue gas precooling expansion chamber of membrane wall structure, can reduce the flue-gas temperature that enters each heating surface in the burner hearth, alleviate heating surface caking property dust stratification;
Use thermal explosion impact wave soot blower, realize blowing online ash, safe and reliable, so that it is large effectively to blow grey space, avoid the corrosion of burner hearth internal heating surface;
Superheated steam system the place ahead arranges water-cooling screen, avoids the superheater bank generation booster phenomenon in the superheated steam system;
Convection heating surface adopts the assembly type of attachment of upper lower header, and water circulation is reliable, and is easy for installation;
The utility model burner hearth adopts tunnel structure, convection heating surface to adopt suspended structure, so that high-temp waste gas is made transversal flow, convection heating surface is heated more even; And drum adopts supporting type structure, firm and durable.
Description of drawings
Fig. 1 is structural representation of the present utility model.
In the drawings, 1, gas approach; 2, steelframe; 3, flue gas precooling expansion chamber; 4, soot blower; 5, water-cooling screen; 6, superheated steam system; 7, ash dropped unit; 8, exhanst gas outlet; 9, afterbody heat-exchange system; 10, convection heating surface; 11, superheater bank; 12, superheater header; 13, Desuperheating device; 14, drum; 15, rise and fall guard system.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
A kind of aluminium manufacturer industrial waste comprehensive utilization waste heat boiler, comprise burner hearth, water-cooling system, burner hearth is supported by steelframe 2, the burner hearth top is provided with gas approach 1, the burner hearth below is provided with exhanst gas outlet 8, the bottom is provided with ash dropped unit 7, is provided with flue gas precooling expansion chamber 3, thermal explosion impact wave soot blower, superheated steam system 6 and afterbody heat-exchange system 9 in the burner hearth; Described water-cooling system comprises drum 14, rise and fall guard system 15, water-cooling screen 5 and convection heating surface 10, water-cooling screen 5 and convection heating surface 10 are installed in the burner hearth, drum 14 is installed on the steelframe 2, and water-cooling screen 5 is connected with convection heating surface and is connected with drum 14 by rise and fall guard system 15; Described superheated steam system 6 comprises superheater header 12, superheater bank 11 and Desuperheating device 13; Described flue gas precooling expansion chamber 3 adopts membrane wall structure; Described convection heating surface 10 adopts the assembly type of attachment of upper lower header.
The utility model connects each pipeline in use, and the furnace wall in the burner hearth adopts tubine formula furnace wall structure.Red mud carries out sedimentation at the high-temp waste gas that the revolution roasting in kilns produces by the flue gas precooling expansion chamber 3 that gas approach 1 enters in the burner hearth, this moment, the temperature of high-temp waste gas was reduced to below 850 ℃, and simultaneously sedimentation part dust, the dust that settles down is discharged through ash dropped unit 7, high-temp waste gas after the cooling passes through water-cooling screen 5, superheated steam system 6, convection heating surface 10, afterbody heat-exchange system 9 successively, discharges through exhanst gas outlet 8; In this process, high-temp waste gas and water-cooling system are carried out heat exchange, working medium absorbing heat in the water-cooling system is for the user, water-cooling screen 5 is installed in the place ahead of superheated steam system 6, avoid the superheater bank 11 in the superheated steam system 6 that booster occurs, soot blower 4 adopts thermal explosion impact wave soot blower, in order to realize blowing online ash, guarantees the continuous and steady operation of boiler.
Claims (5)
1. aluminium manufacturer's industrial waste fully utilizes waste heat boiler, comprise burner hearth, burner hearth is supported by steelframe (2), the burner hearth top is provided with gas approach (1), the burner hearth below is provided with exhanst gas outlet (8), the bottom is provided with ash dropped unit (7), it is characterized in that: be provided with water-cooling system, be provided with flue gas precooling expansion chamber (3), soot blower (4), superheated steam system (6) and afterbody heat-exchange system (9) in the burner hearth; Described water-cooling system comprises drum (14), rise and fall guard system (15), water-cooling screen (5) and convection heating surface (10), water-cooling screen (5) and convection heating surface (10) are installed in the burner hearth, drum (14) is installed on the steelframe (2), and water-cooling screen (5) is connected 10 with convection heating surface) be connected with drum (14) by rise and fall guard system (15).
2. aluminium manufacturer according to claim 1 industrial waste comprehensive utilization waste heat boiler, it is characterized in that: described superheated steam system (6) comprises superheater header (12), superheater bank (11) and Desuperheating device (13).
3. aluminium manufacturer according to claim 1 and 2 industrial waste comprehensive utilization waste heat boiler, it is characterized in that: described flue gas precooling expansion chamber (3) adopts membrane wall structure.
4. aluminium manufacturer according to claim 3 industrial waste comprehensive utilization waste heat boiler, it is characterized in that: described soot blower (4) is thermal explosion impact wave soot blower.
5. aluminium manufacturer according to claim 4 industrial waste comprehensive utilization waste heat boiler is characterized in that: the assembly type of attachment of lower header in described convection heating surface (10) employing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203798880U CN202747313U (en) | 2012-07-31 | 2012-07-31 | Waste heat boiler for comprehensive utilization of industrial waste in aluminum factory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203798880U CN202747313U (en) | 2012-07-31 | 2012-07-31 | Waste heat boiler for comprehensive utilization of industrial waste in aluminum factory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202747313U true CN202747313U (en) | 2013-02-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203798880U Expired - Fee Related CN202747313U (en) | 2012-07-31 | 2012-07-31 | Waste heat boiler for comprehensive utilization of industrial waste in aluminum factory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202747313U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105698552A (en) * | 2016-04-08 | 2016-06-22 | 中国瑞林工程技术有限公司 | Waste heat boiler used for electronic waste smelting furnace |
| CN114184055A (en) * | 2021-12-16 | 2022-03-15 | 南通万达锅炉有限公司 | Cement kiln bypass air discharge waste heat boiler |
-
2012
- 2012-07-31 CN CN2012203798880U patent/CN202747313U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105698552A (en) * | 2016-04-08 | 2016-06-22 | 中国瑞林工程技术有限公司 | Waste heat boiler used for electronic waste smelting furnace |
| CN105698552B (en) * | 2016-04-08 | 2019-02-05 | 中国瑞林工程技术股份有限公司 | Waste heat boiler for electronic waste smelting furnace |
| CN114184055A (en) * | 2021-12-16 | 2022-03-15 | 南通万达锅炉有限公司 | Cement kiln bypass air discharge waste heat boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20140731 |
|
| EXPY | Termination of patent right or utility model |