CN212962856U - Melt aluminium stove exhaust treatment system - Google Patents
Melt aluminium stove exhaust treatment system Download PDFInfo
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- CN212962856U CN212962856U CN202020705786.8U CN202020705786U CN212962856U CN 212962856 U CN212962856 U CN 212962856U CN 202020705786 U CN202020705786 U CN 202020705786U CN 212962856 U CN212962856 U CN 212962856U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model provides an aluminum melting furnace exhaust-gas treatment system, through setting up two heat storage tanks, use the air as the medium, let in the air in one of them heat storage tank in absorb the heat of the heat accumulator that has carried out the preheating, the air obtains the intensification, the temperature of heat accumulator reduces simultaneously, the air after the intensification mixes the burning with the gas that lets in the nozzle and then smelts aluminium and produces high temperature waste gas, high temperature waste gas gets into the heat accumulator from the nozzle of another heat storage tank, and carry out the heat exchange with the heat accumulator, stay the heat in this heat accumulator, waste gas discharges to the dust remover after obtaining the cooling in the short time, when waste gas obtains the cooling, the temperature of the heat accumulator that waste gas passes through improves, realize two heat storage tanks through the switch that changes the cooling in turn of waste gas, so relapse, can make the waste gas that produces in the aluminum melting furnace after burning obtain rapid cooling, the exhausted waste gas is prevented from being synthesized into dioxin again, and the content of the dioxin in the exhausted waste gas is effectively reduced.
Description
Technical Field
The utility model belongs to the technical field of exhaust-gas treatment, concretely relates to melt aluminium stove exhaust-gas treatment system.
Background
The aluminum melting furnace is a novel high-efficiency energy-saving furnace developed according to the aluminum melting process, can well meet the requirements in the aluminum melting process, the aluminum melting furnace can generate 1050 ℃ associated high-temperature waste gas when melting aluminum, the waste gas is treated in the prior art by directly introducing the waste gas into a dust remover for dust removal and discharging after reaching the standard, but the discharged waste gas is polymerized into dioxin harmful gas at low temperature in the process of cooling the waste gas to the range of 250-650 ℃ in the air, wherein the generation amount of dioxin is the largest between the temperature of 300 ℃ and 350 ℃, and the time used for reducing the waste gas from 550 ℃ to 200 ℃ is less than 2 seconds, namely, the high-temperature waste gas generated after high-temperature melting is quenched so as to avoid the generation of dioxin gas, there is therefore a need in the art for an aluminum melting furnace off-gas treatment system that reduces the generation of dioxin gas by quenching.
SUMMERY OF THE UTILITY MODEL
Therefore, in order to overcome the above technical problems, the utility model provides an aluminum melting furnace waste gas treatment system, which comprises an aluminum melting furnace, a dust remover and a waste gas output pipeline, wherein the aluminum melting furnace is communicated with the dust remover through the waste gas output pipeline, the waste gas output pipeline is provided with an induced draft fan for leading waste gas in the aluminum melting furnace to the dust remover, and further comprises a first heat storage box, a second heat storage box, an air input pipeline and a fuel input pipeline, the middle parts of the first heat storage box and the second heat storage box are respectively provided with a first heat accumulator and a second heat accumulator, the upper ends of the first heat storage box and the second heat storage box are respectively provided with a first gas burner and a second gas burner, the lower end of the first heat storage box is respectively communicated with the waste gas output pipeline and the air input pipeline through a first pipeline and a second pipeline, the first gas burner is communicated with the first heat accumulator, the lower end of the second heat storage box is respectively communicated with the waste gas output pipeline and the air input pipeline through a fourth pipeline and a fifth pipeline, the second gas burner is communicated with the second heat storage body and is directly communicated with the fuel input pipeline through a sixth pipeline, the first pipeline, the second pipeline, the third pipeline, the fourth pipeline, the fifth pipeline and the sixth pipeline are respectively provided with a first reversing valve, a second reversing valve, a third reversing valve, a fourth reversing valve, a fifth reversing valve and a sixth reversing valve, and the input end of the air input pipeline is provided with an air blower for inputting air into the aluminum melting furnace.
Further, the first heat accumulator and the second heat accumulator each include a plurality of heat accumulation balls. The heat of the exhaust gas is absorbed by the heat storage balls, the heat of the exhaust gas is absorbed, and the heat of the exhaust gas is stored while the exhaust gas is cooled.
Further, the heat storage ball comprises a ball body, strip-shaped convex grooves are distributed on the surface of the ball body, and the ball body is provided with through holes. Through set up through-hole and bar tongue in spheroidal structure, increase the surface area with the waste gas contact, improve the efficiency of heat transfer.
Further, the dust remover includes coolant liquid case, air-supply line, goes out tuber pipe, motor and impeller, the air-supply line with it arranges in to one side respectively to go out the tuber pipe the both sides of coolant liquid case, the output of air-supply line is located the oblique below of the input of air-supply line, the input that goes out the tuber pipe is located go out the oblique top of the output of tuber pipe, the output of air-supply line with the input that goes out the tuber pipe is located the inside of coolant liquid case, the input of air-supply line communicate in the output of exhaust gas output pipeline, the motor is fixed in the surface of coolant liquid case, the impeller through run through in the transmission shaft of the lateral wall of coolant liquid case with the output of motor is connected. And introducing the waste gas into the cooling liquid of the cooling liquid tank for further cooling, stirring the cooling liquid by the rotating impeller, and washing the residual pollutants in the waste gas in the cooling liquid tank.
The utility model discloses the beneficial effect who produces is: the utility model provides an aluminum melting furnace exhaust-gas treatment system, through setting up two heat storage tanks, use the air as the medium, let in the air in one of them heat storage tank in absorb the heat of the heat accumulator that has carried out the preheating, the air obtains the intensification, the temperature of heat accumulator reduces simultaneously, the air after the intensification mixes the burning with the gas that lets in the nozzle and then smelts aluminium and produces high temperature waste gas, high temperature waste gas gets into the heat accumulator from the nozzle of another heat storage tank, and carry out the heat exchange with the heat accumulator, stay the heat in this heat accumulator, waste gas discharges to the dust remover after obtaining the cooling in the short time, when waste gas obtains the cooling, the temperature of the heat accumulator that waste gas passes through improves, realize two heat storage tanks through the switch that changes the cooling in turn of waste gas, so relapse, can make the waste gas that produces in the aluminum melting furnace after burning obtain rapid cooling, the exhausted waste gas is prevented from being synthesized into dioxin again, and the content of the dioxin in the exhausted waste gas is effectively reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic front view of the dust collector of the present invention;
FIG. 3 is a schematic side view of the dust collector of the present invention;
FIG. 4 is a schematic structural view of the heat storage ball of the present invention;
wherein, 1, an aluminum melting furnace; 2. a dust remover; 21. a coolant tank; 22. an air inlet pipe; 23. an air outlet pipe; 24. A motor; 241. a drive shaft; 25. an impeller; 3. an exhaust gas output pipe; 31. an induced draft fan; 4. a first heat storage tank; 41. a first heat storage body; 42. a first gas burner; 43. a first conduit; 44. a second conduit; 45. A third pipeline; 431. a first direction changing valve; 441. a second directional control valve; 451. a third directional control valve; 5. a second heat storage tank; 51. a second heat storage body; 52. a second gas burner; 53. a fourth conduit; 54. a fifth pipeline; 55. a sixth pipeline; 531. a fourth directional control valve; 541. a fifth directional control valve; 551. a sixth directional control valve; 6. An air input duct; 61. a blower; 7. a fuel input conduit; 8. a heat storage ball; 81. a strip-shaped convex groove; 82. And a through hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings.
FIGS. 1 to 3 show an aluminum melting furnace waste gas treatment system provided by the present invention, which comprises an aluminum melting furnace 1, a dust remover 2, a waste gas output pipeline 3, wherein the aluminum melting furnace 1 is communicated with the dust remover 2 through the waste gas output pipeline 3, the waste gas output pipeline 3 is provided with an induced draft fan 31 for guiding waste gas in the aluminum melting furnace 1 to the dust remover 2, the system further comprises a first heat storage tank 4, a second heat storage tank 5, an air input pipeline 6 and a fuel input pipeline 7, the middle parts of the first heat storage tank 4 and the second heat storage tank 5 are respectively provided with a first heat accumulator 41 and a second heat accumulator 51, the upper ends of the first heat storage tank and the second heat storage tank 5 are respectively provided with a first gas burner 42 and a second gas burner 52, the lower end of the first heat storage tank 4 is respectively communicated with the waste gas output pipeline 3 and the air input pipeline 6 through a first pipeline 43 and a second pipeline 44, the first gas burner 42 is communicated with the first heat accumulator 41, the lower end of the second heat storage box 5 is respectively communicated with the waste gas output pipeline 3 and the air input pipeline 6 through a fourth pipeline 53 and a fifth pipeline 54, the second gas burner 52 is communicated with the second heat storage body 51 and is directly communicated with the fuel input pipeline 7 through a sixth pipeline 55, the first pipeline 43, the second pipeline 44, the third pipeline 45, the fourth pipeline 53, the fifth pipeline 54 and the sixth pipeline 55 are respectively provided with a first reversing valve 431, a second reversing valve 441, a third reversing valve 451, a fourth reversing valve 531, a fifth reversing valve 541 and a sixth reversing valve 551, and the input end of the air input pipeline 6 is provided with a blower 61 for inputting air into the aluminum melting furnace 1.
The first and second heat accumulators 41 and 51 include a plurality of heat accumulation balls 8, respectively. The heat of the waste gas is absorbed through the novel absorption of the heat storage ball 8, the heat of the waste gas is absorbed, and the heat of the waste gas is stored while the waste gas is cooled.
The heat storage ball 8 comprises a ball body, strip-shaped convex grooves 81 are distributed on the surface of the ball body, and the ball body is provided with through holes 82. By providing the through-holes 82 and the bar-shaped convex grooves 81 in the structure of the sphere, the surface area in contact with the exhaust gas is increased, and the efficiency of heat transfer is improved.
The dust remover 2 comprises a cooling liquid box 21, an air inlet pipe 22, an air outlet pipe 23, a motor 24 and an impeller 25, wherein the air inlet pipe 22 and the air outlet pipe 23 are respectively and obliquely arranged at two sides of the cooling liquid box 21, the output end of the air inlet pipe 22 is positioned at the oblique lower part of the input end of the air inlet pipe 22, the input end of the air outlet pipe 23 is positioned at the oblique upper part of the output end of the air outlet pipe 23, the output end of the air inlet pipe 22 and the input end of the air outlet pipe 23 are positioned in the cooling liquid box 21, the input end of the air inlet pipe 22 is communicated with the output end of the waste gas output pipeline 3, the motor 24 is fixed on the outer surface of the cooling liquid box 21, and the impeller 25 is connected. The exhaust gas is introduced into the cooling liquid in the cooling liquid tank 21 for further cooling, and the rotating impeller 25 stirs the cooling liquid, so that the residual pollutants in the exhaust gas are washed out in the cooling liquid tank 21.
The working mode is as follows: s1: the first heat accumulator 41 is heated to make the first heat accumulator 41 reach high temperature, at this time, the second heat accumulator 51 is in a low temperature state, the first direction valve 431, the fifth direction valve 541 and the sixth direction valve 551 are closed, the second direction valve 441, the third direction valve 451 and the fourth direction valve 531 are opened, at this time, the second pipeline 44, the third pipeline 45 and the fourth pipeline 53 are in an open state, the external air is conveyed to the first heat accumulator tank 4 through the second pipeline 44 by the air input pipeline 6 under the action of the blower 61 to exchange heat with the first heat accumulator 41, the first heat accumulator 41 transmits heat to the air, the first heat accumulator 41 is cooled, the preheated high-temperature air and the fuel input to the first burner by the gas input pipeline 45 are mixed together in the first burner, and the aluminum piece is melted and combusted in the aluminum melting furnace 1, the generated high-temperature waste gas enters the second heat accumulator 5 and exchanges heat with the second heat accumulator 51, the second heat accumulator 51 can cool the high-temperature waste gas to below 180 ℃ in 2S, meanwhile, the second heat accumulator 51 is preheated, and the quenched waste gas is output to the dust remover 2 from the second heat accumulator 5 through the fourth pipeline 53 and the waste gas output pipeline 3 under the action of the induced draft fan 31; s2: the first reversing valve 431, the fifth reversing valve 541 and the sixth reversing valve 551 which are originally in the closed state are opened, the second reversing valve 441, the third reversing valve 451 and the fourth reversing valve 531 which are originally in the opened state are closed, at the time, the first pipeline 43, the fifth pipeline 54 and the sixth pipeline 55 are in the opened state, the outside air is conveyed to the second heat storage box 5 through the fifth pipeline 54 by the air input pipeline 6 under the action of the blower 61, the heat is exchanged with the preheated second heat storage body 51, the second heat storage body 51 transmits the heat to the air, the second heat storage body 51 is cooled, the preheated high-temperature air and the fuel which is input to the second burner through the sixth pipeline 55 by the gas input pipeline are mixed together in the second burner, the aluminum is melted and combusted in the aluminum melting furnace 1, the generated high-temperature waste gas enters the first heat storage box 4 through the first burner and exchanges heat with the first heat storage body 41, the first heat accumulator 41 can cool the high-temperature waste gas to 180 ℃ in 2S, meanwhile, the first heat accumulator 41 is preheated, and the quenched waste gas is output to the dust remover 2 from the first heat accumulator 4 through the first pipeline 43 and the waste gas output pipeline 3 under the action of the induced draft fan 31; the original reversing valve in the closed state is opened, the original reversing valve in the opened state is closed, the operation is repeated, and the circulation can rapidly cool the dioxin burnt in the aluminum melting furnace 1 and prevent the dioxin from being synthesized again, so that the content of the dioxin in the discharged waste gas is reduced.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "upper", "lower", and the like are used herein for illustrative purposes only.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make simple deduction or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (4)
1. A waste gas treatment system of an aluminum melting furnace comprises the aluminum melting furnace, a dust remover and a waste gas output pipeline, wherein the aluminum melting furnace is communicated with the dust remover through the waste gas output pipeline, the waste gas output pipeline is provided with a draught fan which leads waste gas in the aluminum melting furnace to the dust remover, and the system is characterized by further comprising a first heat storage box, a second heat storage box, an air input pipeline and a fuel input pipeline, the middle parts of the first heat storage box and the second heat storage box are respectively provided with a first heat accumulator and a second heat accumulator, the upper ends of the first heat storage box and the second heat storage box are respectively provided with a first gas burner and a second gas burner, the lower end of the first heat storage box is respectively communicated with the waste gas output pipeline and the air input pipeline through the first pipeline and the second pipeline, the first gas burner is communicated with the first heat accumulator and is directly communicated with the fuel input pipeline through the third pipeline, the lower end of the second heat storage box is communicated with the waste gas output pipeline and the air input pipeline through a fourth pipeline and a fifth pipeline respectively, the second gas burner is communicated with the second heat storage body and is directly communicated with the fuel input pipeline through a sixth pipeline, the first pipeline, the second pipeline, the third pipeline, the fourth pipeline, the fifth pipeline and the sixth pipeline are provided with a first reversing valve, a second reversing valve, a third reversing valve, a fourth reversing valve, a fifth reversing valve and a sixth reversing valve respectively, and the input end of the air input pipeline is provided with an air blower for inputting air into the aluminum melting furnace.
2. The aluminum smelter exhaust gas treatment system of claim 1, wherein each of said first and second heat accumulators includes a plurality of heat accumulator balls.
3. The waste gas treatment system of the aluminum melting furnace of claim 2, wherein the heat storage ball comprises a ball body, strip-shaped convex grooves are distributed on the surface of the ball body, and the ball body is provided with through holes.
4. The system of claim 1, wherein the dust remover comprises a coolant tank, an air inlet pipe, an air outlet pipe, a motor and an impeller, the air inlet pipe and the air outlet pipe are respectively arranged on two sides of the coolant tank in an inclined manner, an output end of the air inlet pipe is arranged below an input end of the air inlet pipe in an inclined manner, an input end of the air outlet pipe is arranged above an output end of the air outlet pipe in an inclined manner, an output end of the air inlet pipe and an input end of the air outlet pipe are arranged inside the coolant tank, an input end of the air inlet pipe is communicated with an output end of the waste gas output pipeline, the motor is fixed on an outer surface of the coolant tank, and the impeller is connected with an output end of the motor through a transmission shaft penetrating through a side wall of the coolant tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020705786.8U CN212962856U (en) | 2020-04-30 | 2020-04-30 | Melt aluminium stove exhaust treatment system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020705786.8U CN212962856U (en) | 2020-04-30 | 2020-04-30 | Melt aluminium stove exhaust treatment system |
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| CN212962856U true CN212962856U (en) | 2021-04-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113654358A (en) * | 2021-08-26 | 2021-11-16 | 肇庆市大正铝业有限公司 | System and method for circulating paint removal and rapid degradation of dioxin by using aluminum secondary resource smelting flue gas waste heat |
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2020
- 2020-04-30 CN CN202020705786.8U patent/CN212962856U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113654358A (en) * | 2021-08-26 | 2021-11-16 | 肇庆市大正铝业有限公司 | System and method for circulating paint removal and rapid degradation of dioxin by using aluminum secondary resource smelting flue gas waste heat |
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