CN201215445Y - Flue type residue heat exchanging device for graphitization furnace - Google Patents

Flue type residue heat exchanging device for graphitization furnace Download PDF

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Publication number
CN201215445Y
CN201215445Y CNU2008200774483U CN200820077448U CN201215445Y CN 201215445 Y CN201215445 Y CN 201215445Y CN U2008200774483 U CNU2008200774483 U CN U2008200774483U CN 200820077448 U CN200820077448 U CN 200820077448U CN 201215445 Y CN201215445 Y CN 201215445Y
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China
Prior art keywords
flue
heat
gas
heat exchanger
exchanger tube
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Expired - Fee Related
Application number
CNU2008200774483U
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Chinese (zh)
Inventor
刘自强
赵彦忠
王建辉
刘伟
彭国辉
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HEBEI INSTITUTE OF ENERGY RESOURCE
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HEBEI INSTITUTE OF ENERGY RESOURCE
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Priority to CNU2008200774483U priority Critical patent/CN201215445Y/en
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Publication of CN201215445Y publication Critical patent/CN201215445Y/en
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  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

The utility model relates to a graphitizing furnace flue type residual heat exchanger, belonging to the residual heat utilization technical field, which comprises a smoke collection system, a heat exchange system and a smoke exhaust system. The smoke collection system comprises a gas collecting hood covering the air outlet of the graphitizing furnace, wherein the air outlet of the gas collecting hood is communicated with the gas inlet of the flue of the heat exchange system. The heat exchange system comprises a flue communicated with the air outlet of the gas collecting hood of the smoke collection system, wherein the exhaust end of the flue is communicated with the smoke exhaust system, a heat exchange pipe is arranged in the flue and contains liquid working medium, the inlet of the heat exchange pipe is connected with a high pressure pump and the outlet is connected with an energy conversion device. The smoke exhaust system comprises a chimney, a dust cleaner between the flue exhaust end of the heat exchange system and the chimney and an induced fan. The graphitizing furnace flue type residual heat exchanger resolves the problems of the prior art such as energy waste and environment pollution, can effectively reduce environment pollution and has high residual heat utilization ratio.

Description

Graphitization furnace flue type residual heat heat-exchanging device
Technical field
The utility model relates to the UTILIZATION OF VESIDUAL HEAT IN technical field, is meant a kind of graphitization furnace flue type residual heat heat-exchanging device especially.
Background technology
What at present, the graphitizing furnace of domestic production graphite electrode was commonly used is acheson furnace.By big electric current to being that the carbon-point of primary raw material carries out high temperature graphitization with the petroleum coke, the graphitizing furnace internal temperature is up to more than 2000 ℃, the graphite electrode production industry is the high energy consumption industry, in the high temperature graphitization process of producing graphite electrode, it is very huge to consume energy, according to statistics, produce a hearthstone electrode ink, need to consume 30-50 ten thousand degree electricity, in the high temperature graphitization process, produce a large amount of high-temperature flue gas and a large amount of dust, flue-gas temperature is containing a large amount of heat energy up to 600 ℃-800 ℃ in the high-temperature flue gas, all be direct discharging at present, not only cause great energy waste, and contaminated environment.
The utility model content
The purpose of this utility model is the energy waste that exists at the graphite electrode production industry and problem of environmental pollution and the graphitization furnace flue type residual heat heat-exchanging device that designs.
Overall technology design of the present utility model is:
Graphitization furnace flue type residual heat heat-exchanging device comprises gas collection system, heat-exchange system and flue gas emission;
A, gas collection system comprise the gas skirt 9 that is coated on the graphitizing furnace 8 exhaust outlets outside, and the exhaust outlet of gas skirt 9 is communicated with the air inlet inlet of flue 6 in the heat-exchange system;
B, heat-exchange system comprise the flue 6 that is communicated with gas skirt 9 exhaust outlets in the gas collection system with inlet end, flue gas end 1 is communicated with flue gas emission, be provided with heat exchanger tube 12 in the flue 6, be loaded with liquid refrigerant in the heat exchanger tube 12, the inlet of heat exchanger tube 12 connects high-pressure pump 5, and the outlet of heat exchanger tube 12 connects energy conversion device;
C, flue gas emission comprise chimney 2, are arranged at flue gas end 1 and the dust arrester 4 between the chimney 2 and the air-introduced machine 3 of heat-exchange system.
Concrete technical measures of the present utility model have:
For ease of 8 discharged flue gas of many graphitizing furnaces are collected, the exhaust outlet of gas skirt 9 is spaced apart on flue 6, gas skirt 9 can be according to being connected on one (packaged type) or many (fixed) graphitizing furnaces 8, when graphitizing furnace 8 temperature are elevated to uniform temperature, gas skirt 9 moved to (packaged type) on the graphitizing furnace 8 or open and flue 6 air inlets between valve (fixed), when graphitizing furnace 8 temperature reduce, the gas skirt 9 and the valve of flue 6 air inlet junctions can be turned off, and the valve open that will meet gas skirt 9 and flue 6 air inlet junctions on the graphitizing furnace 8 that flue-gas temperature requires continues to collect high-temperature flue gas.
It is evident that the heat exchanger tube 12 preferred plans of establishment are upwards to be provided with at interval and to extend axially along it in flue 6 footpaths; Wherein more optimized technical scheme is that heat exchanger tube 12 extends axially in the radially first-class angle intervals setting of flue 6 and along it.
The outlet of heat exchanger tube 12 connects energy conversion device through gas collecting apparatus 10, pipeline 11.
Energy conversion device a kind of or its combination in steam turbine, boiler or the heat-exchanger rig, wherein the water under high pressure in the heat exchanger tube 12 absorbs heat and becomes high temperature, high steam, enter collection vapour device 10, enter by pipeline 11 and can enter steam turbine power generation, if temperature, pressure do not reach requirement, then enter Industrial Boiler, after high temperature, water under high pressure in the Industrial Boiler mixes, further heating, go into steam turbine power generation then, perhaps produce low-temperature water heating and use for heating or bathing by the heat exchanger heat exchange.
For guaranteeing more good heat exchange effect, it is opposite with the flow direction of flue gas in the flue 6 that the flow direction of the liquid refrigerant in the heat exchanger tube 12 preferably adopts.
Air-introduced machine 3 preferably is located between the exhanst gas outlet and chimney 2 of dust arrester 4.
Heat exchange structure in the heat-exchange system does not all break away from essence of the present utility model including, but not limited to adopting heat exchanger tube, heat exchanger plates, heat exchanging chamber structure etc.
The obtained technological progress of the utility model is:
This device can extensively be used in the graphite electrode production industry, as its high-temperature flue gas waste heat heat exchange use device, can energy savings about 10%, and can effectively alleviate environmental pollution, reach the purpose of UTILIZATION OF VESIDUAL HEAT IN and energy-saving and emission-reduction.
Description of drawings
Accompanying drawing of the present utility model has:
Fig. 1 is an overall structure schematic diagram of the present utility model.
Among the figure, 1 flue gas end, 2 chimneys, 3 air-introduced machines, 4 dust arresters, 5 high-pressure pumps, 6 flues, 7 flue gases are collected mouth, 8 graphitizing furnaces, 9 gas skirts, 10 collection vapour devices, 11 pipelines, 12 heat exchanger tubes.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is further described, but not as to qualification of the present utility model.
The overall structure of present embodiment wherein, comprises gas collection system, heat-exchange system and flue gas emission as shown;
A, gas collection system comprise the gas skirt 9 that is coated on the graphitizing furnace 8 exhaust outlets outside, and the exhaust outlet of gas skirt 9 is communicated with the air inlet inlet of flue 6 in the heat-exchange system;
B, heat-exchange system comprise the flue 6 that is communicated with gas skirt 9 exhaust outlets in the gas collection system with inlet end, flue gas end 1 is communicated with flue gas emission, be provided with heat exchanger tube 12 in the flue 6, be loaded with liquid refrigerant in the heat exchanger tube 12, the inlet of heat exchanger tube 12 connects high-pressure pump 5, and the outlet of heat exchanger tube 12 connects energy conversion device;
C, flue gas emission comprise chimney 2, are arranged at flue gas end 1 and the dust arrester 4 between the chimney 2 and the air-introduced machine 3 of heat-exchange system.
For ease of 8 discharged flue gas of many graphitizing furnaces are collected, the exhaust outlet of gas skirt 9 is spaced apart on flue 6, gas skirt 9 can be connected on many graphitizing furnaces 8 as required, when graphitizing furnace 8 temperature are elevated to uniform temperature, with the valve of opening between gas skirt 9 and flue 6 air inlets, when graphitizing furnace 8 temperature reduce, the gas skirt 9 and the valve of flue 6 air inlet junctions can be turned off, and the valve open that will meet gas skirt 9 and flue 6 air inlet junctions on the graphitizing furnace 8 that flue-gas temperature requires continues to collect high-temperature flue gas.
Heat exchanger tube 12 plans of establishment are upwards to be provided with at interval and to extend axially along it in flue 6 footpaths.
The outlet of heat exchanger tube 12 connects energy conversion device through gas collecting apparatus 10, pipeline 11.
Energy conversion device a kind of or its combination in steam turbine, boiler or the heat-exchanger rig, wherein the water under high pressure in the heat exchanger tube 12 absorbs heat and becomes high temperature, high steam, enter collection vapour device 10, enter by pipeline 11 and can enter steam turbine power generation, if temperature, pressure do not reach requirement, then enter Industrial Boiler, after high temperature, water under high pressure in the Industrial Boiler mixes, further heating, go into steam turbine power generation then, perhaps produce low-temperature water heating and use for heating or bathing by the heat exchanger heat exchange.
For guaranteeing more good heat exchange effect, it is opposite with the flow direction of flue gas in the flue 6 that the flow direction of the liquid refrigerant in the heat exchanger tube 12 adopts.
Air-introduced machine 3 is located between the exhanst gas outlet and chimney 2 of dust arrester 4.

Claims (7)

1, graphitization furnace flue type residual heat heat-exchanging device comprises gas collection system, heat-exchange system and flue gas emission; It is characterized in that:
A, gas collection system comprise the gas skirt (9) that is coated on graphitizing furnace (8) the exhaust outlet outside, and the exhaust outlet of gas skirt (9) is communicated with the air inlet inlet of flue (6) in the heat-exchange system;
B, heat-exchange system comprise the flue (6) that is communicated with gas skirt (9) exhaust outlet in the gas collection system with inlet end, flue gas end (1) is communicated with flue gas emission, be provided with heat exchanger tube (12) in the flue (6), heat exchanger tube is loaded with liquid refrigerant in (12), the inlet of heat exchanger tube (12) connects high-pressure pump (5), and the outlet of heat exchanger tube (12) connects energy conversion device;
C, flue gas emission comprise chimney (2), are arranged at flue gas end (1) and the dust arrester (4) between the chimney (2) and the air-introduced machine (3) of heat-exchange system.
2, graphitization furnace flue type residual heat heat-exchanging device according to claim 1 is characterized in that the exhaust outlet of described gas skirt (9) is gone up spaced apart at flue (6).
3, graphitization furnace flue type residual heat heat-exchanging device according to claim 1 is characterized in that described heat exchanger tube (12) upwards is provided with at interval and extends axially along it in flue (6) footpath.
4,, it is characterized in that the outlet of described heat exchanger tube (12) connects energy conversion device through gas collecting apparatus (10), pipeline (11) according to claim 1 or 3 described graphitization furnace flue type residual heat heat-exchanging devices.
5, graphitization furnace flue type residual heat heat-exchanging device according to claim 4 is characterized in that described energy conversion device comprises a kind of or its combination in steam turbine, boiler or the heat-exchanger rig.
6, graphitization furnace flue type residual heat heat-exchanging device according to claim 1 is characterized in that the flow direction of the liquid refrigerant in the described heat exchanger tube (12) is opposite with the flow direction of the interior flue gas of flue (6).
7, graphitization furnace flue type residual heat heat-exchanging device according to claim 1 is characterized in that described air-introduced machine (3) is arranged between the exhanst gas outlet and chimney (2) of dust arrester (4).
CNU2008200774483U 2008-06-04 2008-06-04 Flue type residue heat exchanging device for graphitization furnace Expired - Fee Related CN201215445Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200774483U CN201215445Y (en) 2008-06-04 2008-06-04 Flue type residue heat exchanging device for graphitization furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200774483U CN201215445Y (en) 2008-06-04 2008-06-04 Flue type residue heat exchanging device for graphitization furnace

Publications (1)

Publication Number Publication Date
CN201215445Y true CN201215445Y (en) 2009-04-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106829950A (en) * 2016-04-15 2017-06-13 贵州顺安机电设备有限公司 The power-economizing method and device of a kind of cascade graphitizing furnaces

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106829950A (en) * 2016-04-15 2017-06-13 贵州顺安机电设备有限公司 The power-economizing method and device of a kind of cascade graphitizing furnaces
CN106829950B (en) * 2016-04-15 2018-10-23 贵州顺安机电设备有限公司 A kind of power-economizing method and device of cascade graphitizing furnaces

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090401

Termination date: 20100604