CN206959612U - The electric furnace that a kind of hot tail gas utilizes - Google Patents

The electric furnace that a kind of hot tail gas utilizes Download PDF

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Publication number
CN206959612U
CN206959612U CN201720818887.4U CN201720818887U CN206959612U CN 206959612 U CN206959612 U CN 206959612U CN 201720818887 U CN201720818887 U CN 201720818887U CN 206959612 U CN206959612 U CN 206959612U
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China
Prior art keywords
electric furnace
dust
water
cyclone dust
tail gas
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CN201720818887.4U
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Chinese (zh)
Inventor
万羽
王家信
宋林
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PANZHIHUA DUOSHI MACHINERY MANUFACTURING Co Ltd
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PANZHIHUA DUOSHI MACHINERY MANUFACTURING Co Ltd
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Priority to CN201720818887.4U priority Critical patent/CN206959612U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

Abstract

The utility model discloses the electric furnace that a kind of hot tail gas utilizes, including electric furnace body, the electric furnace body is connected with electric furnace preheating cabinet, the air outlet of the electric furnace body is connected with cyclone dust collectors, the bottom of the cyclone dust collectors is connected with dust collect plant, it is provided with waste heat circulation device between cyclone dust collectors and the electric furnace preheating cabinet, the discharge pipe a at the top of the cyclone dust collectors is connected with water-bath impact dust remover, and the water-bath impact dust remover is connected with sack cleaner by discharge pipe b.The air outlet of the utility model electric furnace body is connected with the cyclone dust collector for removing big dust particle, the air outlet of cyclone dust collector is connected with the water-bath impact dust remover for removing larger particles dust, the fine particle in flue gas is removed finally by sack cleaner, on the premise of three kinds of modes ensure dust removing effects, the waste heat circulation device of setting can be heated effectively using the waste heat in flue gas to the material in electric furnace preheating cabinet, improve the utilization rate of heat energy.

Description

The electric furnace that a kind of hot tail gas utilizes
Technical field
It the utility model is related to environmental technology field, and in particular to the electric furnace that a kind of hot tail gas utilizes.
Background technology
At present, domestic metallurgy industry metallurgical electric furnace can produce substantial amounts of dust, flue gas in production, not only pollute work Environment, while atmospheric environment is caused greatly to endanger.One of traditional dedusting method is discharged using dedusting fan, another Method is to use final dusting cover dedusting, and both approaches are all low in the presence of smoke evacuation, efficiency of dust collection, and investment is big, does not reach country and wants The problems such as discharge standard asked.
Patent CN105749646A discloses a kind of efficient metallurgical electric furnace smoke-discharging dust-eliminating device, including air extractor, the One filter, the second filter, the 3rd filter, grounder device, plumbing installation and the 4th filter, air extractor Including the first framework, exhaust tube, the first blower fan, the first pipeline, the first water pump, second pipe, the first valve, the first filter Block and the first sponge block are leaned including the first screen pack, the first spring, first, the second filter includes second framework, the 3rd Pipeline, the second valve, locating ring, mobile column, second spring, the second screen pack, the 3rd filter include the 3rd framework, the 4th Framework, first support, the 3rd screen pack, the 3rd spring, grounder device include the first brace, the 4th spring, the 5th spring and blocked up Ball is filled in, plumbing installation includes connecting tube, the 3rd valve, second support, and the present invention can be carried out to flue gas caused by metallurgical electric furnace Thoroughly dust separation, prevent it from directly discharging pollution on the environment.
But the invention is complicated, although the purpose to flue-gas dust removal and purification, screen pack and sponge block can be reached Occurring to block, it is necessary to often change Deng easy, operating cost is high, meanwhile, substantial amounts of heat energy is carried in the flue gas of electric furnace, in dedusting During most flue gas directly discharges and heat energy will be caused to waste at last, do not meet the requirement of energy-saving and emission-reduction.
The content of the invention
The purpose of this utility model is:High for the smoke-discharging dust-eliminating device operating cost of above-mentioned electric furnace and a large amount of heat energy waves The problem of taking, the utility model provide the electric furnace that a kind of hot tail gas easy to use utilizes.
The technical solution adopted in the utility model is as follows:
The electric furnace that a kind of hot tail gas utilizes, including electric furnace body, the electric furnace body are connected with electric furnace preheating cabinet, the electricity The air outlet of furnace body is connected with cyclone dust collectors, and the bottom of the cyclone dust collectors is connected with dust collect plant, and the whirlwind removes It is provided with waste heat circulation device between dirt device and electric furnace preheating cabinet, the discharge pipe a at the top of the cyclone dust collectors is connected with water-bath punching Deduster is hit, the water-bath impact dust remover is connected with sack cleaner by discharge pipe b.
Further, the waste heat circulation device includes the circulation being arranged in a spiral manner on cyclone dust collectors wall Pipe, circulation pipe one end connection electric furnace preheating cabinet, other end connection circulatory pool, is provided with pressure between the circulation pipe and circulatory pool Power pump.
Further, the water-bath impact dust remover includes water tank, and the discharge pipe a and discharge pipe b are respectively positioned on water tank Ullage, the water tank are connected with collecting tank and water delivery pond.
Further, the electric furnace body is provided with into air pump.
In summary, by adopting the above-described technical solution, the beneficial effects of the utility model are:
The air outlet of the utility model electric furnace body is connected with the cyclone dust collector for removing big dust particle, whirlwind The air outlet of dust arrester is connected with the water-bath impact dust remover for removing larger particles dust, finally by sack cleaner The fine particle in flue gas is removed, on the premise of three kinds of modes ensure dust removing effects, the waste heat circulation device of setting can be effective The material in electric furnace preheating cabinet is heated using the waste heat in flue gas, improve the utilization rate of heat energy.
Brief description of the drawings
Fig. 1 is structure chart of the present utility model;
Marked in figure:1- electric furnaces preheating cabinet, 2- electric furnaces body, 3- enter air pump, 4- cyclone dust collectors, 5- discharge pipes a, 6- go out Airduct b, 7- sack cleaner, 8- cloth bags, 9- water deliverys pond, 10- collecting tanks, 11- valves, 12- water tanks, 13- dust collect plants, 14- Compression pump, 15- circulatory pools, 16- circulation pipes.
Embodiment
The present invention is elaborated with reference to Fig. 1.
Embodiment one:
As shown in figure 1, the electric furnace that a kind of hot tail gas utilizes, including electric furnace body 2, the electric furnace body 2 are connected with electric furnace Preheating cabinet 1, the air outlet of the electric furnace body 2 are connected with cyclone dust collectors 4, and the bottom of the cyclone dust collectors 4 is connected with collection Dirt device 13, waste heat circulation device, the top of cyclone dust collectors 4 are provided between the cyclone dust collectors 4 and electric furnace preheating cabinet 1 Discharge pipe a5 be connected with water-bath impact dust remover, the water-bath impact dust remover is connected with sack cleaner by discharge pipe b6 7。
In the present embodiment, the flue gas that band has surplus heat is entered in cyclone dust collectors 4 by the air outlet of electric furnace body 2, big The dust of grain enters dust collect plant 13 by the bottom of cyclone dust collectors 4, and flue gas enters water-bath from the discharge pipe a5 of cyclone dust collectors 4 In impact dust remover, the dust of larger particles is stayed in water-bath impact dust remover, and flue gas enters bag-type dust by discharge pipe b6 In device 7, fine particle is stayed in the cloth bag 8 of sack cleaner 7, and gas escapes from the gap of cloth bag 8, and three kinds of modes are classified Dedusting ensure that efficiency of dust collection, prevent dust to be directly entered the pollution to environment in air.
While dedusting, waste heat circulation device between cyclone dust collectors 4 and electric furnace preheating cabinet 1 is by the heat energy in flue gas From the band of cyclone dust collectors 4 into electric furnace preheating cabinet 1, waste heat heats to the material of electric furnace preheating cabinet 1, improves the profit of heat energy With rate.
Embodiment two:
As a kind of special case, the waste heat circulation device in embodiment one includes being arranged on cyclone dust collectors 4 in a spiral manner Circulation pipe 16 on wall, the one end of circulation pipe 16 connection electric furnace preheating cabinet 1, other end connection circulatory pool 15, the circulation Compression pump 14 is provided between pipe 16 and circulatory pool 15.
Wall spiral of the dust of bulky grain along cyclone dust collectors 4 declines, with the fluid heat transfer in circulation pipe 16, dust Specific heat capacity it is small, the dust of high temperature is easily by the fluid communication in heat energy and circulation pipe 16, the fluid in circulation pipe 16 Circulation helical rises fully exchanged heat with dust after enter thermal energy exchange in electric furnace preheating cabinet 1, to the material in electric furnace preheating cabinet 1 Heated, the fluid reflux after cooling waits heat exchange next time into circulatory pool 15.
Embodiment three:
As a kind of special case, the water-bath impact dust remover in embodiment one includes water tank 12, the discharge pipe a5 and air-out Pipe b6 is respectively positioned on the ullage of water tank 12, and the water tank 12 is connected with collecting tank 10 and water delivery pond 9.
The liquid level of flue gas high-speed impact water tank 12 with dust, gas, which is turned back 180 °, changes flow direction, and dust is due to used Property effect be segregated into water with gas, also, caused spray and water smoke will be combined with the dust in gas in hitting, and enter one Step removes the dust in flue gas, further, since flue gas and the temperature difference of the reclaimed water of water tank 12 are larger, water can accelerate to form vapor, water Steam can be condensed gradually with flue gas, can also remove part dust, and a variety of dedusting methods accelerate to remove the bulky grain powder in flue gas Dirt.
When the dust collected in water tank 12 is more or water tank 12 in water caused by flue gas the temperature difference of water and flue gas Become hour, the water in water tank 12 is poured into collecting tank 10 by the valve 11 for opening collecting tank 10, while the water in water delivery pond 9 is imported In water tank 12, the normal work of water-bath impactor is maintained.
Example IV:
For the further efficiency of dust collection of increase cyclone dust collector 4 and wet dust collector, the electric furnace body 2 in embodiment one It is provided with into air pump 3, for increasing the flow of flue gas speed at air outlet.
It is embodiment of the present utility model as described above.The utility model is not limited to above-mentioned embodiment, anyone The structure change made under enlightenment of the present utility model should be learnt, every and the utility model has same or like Technical scheme, each fall within the scope of protection of the utility model.

Claims (4)

1. the electric furnace that a kind of hot tail gas utilizes, including electric furnace body (2), the electric furnace body (2) is connected with electric furnace preheating cabinet (1), it is characterised in that the air outlet of the electric furnace body (2) is connected with cyclone dust collectors (4), the cyclone dust collectors (4) Bottom is connected with dust collect plant (13), and waste heat circulation device is provided between the cyclone dust collectors (4) and electric furnace preheating cabinet (1), Discharge pipe a (5) at the top of the cyclone dust collectors (4) is connected with water-bath impact dust remover, and the water-bath impact dust remover passes through Discharge pipe b (6) is connected with sack cleaner (7).
2. the electric furnace that a kind of hot tail gas according to claim 1 utilizes, it is characterised in that the waste heat circulation device includes The circulation pipe (16) being arranged in a spiral manner on cyclone dust collectors (4) wall, circulation pipe (16) one end connection electric furnace are pre- Hot tank (1), other end connection circulatory pool (15), are provided with compression pump (14) between the circulation pipe (16) and circulatory pool (15).
3. the electric furnace that a kind of hot tail gas according to claim 1 utilizes, it is characterised in that the water-bath impact dust remover bag Water tank (12) is included, the discharge pipe a (5) and discharge pipe b (6) are respectively positioned on the ullage of water tank (12), and the water tank (12) is even It is connected to collecting tank (10) and water delivery pond (9).
4. the electric furnace that a kind of hot tail gas according to claim 1 utilizes, it is characterised in that set on the electric furnace body (2) Have into air pump (3).
CN201720818887.4U 2017-07-07 2017-07-07 The electric furnace that a kind of hot tail gas utilizes Active CN206959612U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720818887.4U CN206959612U (en) 2017-07-07 2017-07-07 The electric furnace that a kind of hot tail gas utilizes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720818887.4U CN206959612U (en) 2017-07-07 2017-07-07 The electric furnace that a kind of hot tail gas utilizes

Publications (1)

Publication Number Publication Date
CN206959612U true CN206959612U (en) 2018-02-02

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Application Number Title Priority Date Filing Date
CN201720818887.4U Active CN206959612U (en) 2017-07-07 2017-07-07 The electric furnace that a kind of hot tail gas utilizes

Country Status (1)

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CN (1) CN206959612U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112206626A (en) * 2020-10-26 2021-01-12 芜湖久弘重工股份有限公司 Dust collecting device of electric casting furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112206626A (en) * 2020-10-26 2021-01-12 芜湖久弘重工股份有限公司 Dust collecting device of electric casting furnace

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