CN210198113U - Clean high-efficient aluminium stove flue gas dust collector that melts - Google Patents
Clean high-efficient aluminium stove flue gas dust collector that melts Download PDFInfo
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- CN210198113U CN210198113U CN201920786036.5U CN201920786036U CN210198113U CN 210198113 U CN210198113 U CN 210198113U CN 201920786036 U CN201920786036 U CN 201920786036U CN 210198113 U CN210198113 U CN 210198113U
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Abstract
The utility model discloses a clean and high-efficiency smoke dust removing device for an aluminum melting furnace, which comprises an aluminum melting furnace; a hearth flue gas branch pipe and a furnace door flue gas branch pipe are respectively arranged at a hearth and a furnace door of the aluminum melting furnace, and the hearth flue gas branch pipe and the furnace door flue gas branch pipe are communicated with an inlet of the spark catcher; the outlet of the spark catcher is communicated with the bag-type dust collector; the bottom end of the bag-type dust collector is provided with an ash conveying screw machine; the top end of the bag-type dust collector is communicated with a compressed air storage tank; the top of the bag-type dust collector is communicated with an induced draft fan through a pipeline, and the induced draft fan is communicated with a chimney. The flue gas in the hearth is collected through the hearth flue gas branch pipe, and a high-temperature regulating valve arranged on the hearth flue gas branch pipe can perform first-step cooling treatment on the flue gas; the hearth flue gas branch pipe and the furnace door flue gas branch pipe are communicated with the spark catcher together, so that sparks in flue gas can be effectively removed, and the safety is improved; and finally discharging the flue gas subjected to dust removal and purification in a chimney through a draught fan.
Description
Technical Field
The utility model belongs to the technical field of the flue gas dust removal and purification equipment is smelted to the aluminium alloy, especially, relate to a novel clean efficient melts aluminium stove flue gas dust removal device.
Background
In the prior art, the environmental protection treatment problem of the aluminum profile processing industry is the problem that enterprises are very headache, the national requirements for environmental protection treatment are more and more strict, production is stopped when the national index requirements are not met, and the normal production and operation of the enterprises are greatly influenced.
The traditional flue gas purification device is very complicated in design and high in cost, and is rarely applied by enterprises. Therefore, the design of the flue gas dust removal device for the aluminum melting furnace, which is clean, efficient, low in cost and simple in structure, is very urgent.
Disclosure of Invention
The utility model aims at solving the technical problem that the prior art has a complex structure and high cost, and providing a clean and high-efficiency flue gas dust removal device for an aluminum melting furnace, so as to overcome the defects of the prior art.
The utility model relates to a clean and high-efficiency smoke dust removing device for an aluminum melting furnace, which comprises an aluminum melting furnace;
a hearth flue gas branch pipe and a furnace door flue gas branch pipe are respectively arranged at a hearth and a furnace door of the aluminum melting furnace, and the hearth flue gas branch pipe and the furnace door flue gas branch pipe are communicated with an inlet of the spark catcher; the outlet of the spark catcher is communicated with the bag-type dust collector;
the bottom end of the bag-type dust collector is provided with an ash conveying screw machine with an ash discharge valve; a compressed air inlet pipe is arranged at the top end of the bag-type dust collector and is communicated with a compressed air storage tank;
the top of the bag-type dust collector is communicated with an induced draft fan through a pipeline, and the induced draft fan is communicated with a chimney.
Furthermore, a smoke collecting cover is arranged at the furnace door of the aluminum melting furnace and is communicated with the furnace door smoke branch pipe through a butterfly valve.
Furthermore, a high-temperature regulating valve is arranged on the hearth flue gas branch pipe.
The utility model has reasonable structure and convenient use; the flue gas in the hearth is collected through the hearth flue gas branch pipe, and a high-temperature regulating valve arranged on the hearth flue gas branch pipe can perform first-step cooling treatment on the flue gas; the hearth flue gas branch pipe and the furnace door flue gas branch pipe are communicated with the spark catcher together, so that sparks in flue gas can be effectively removed, and the safety is improved; and finally discharging the flue gas subjected to dust removal and purification in a chimney through a draught fan.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, the device comprises a molten aluminum furnace 1, a flue gas collecting cover 3, a butterfly valve 4, a furnace door flue gas branch pipe 5, a hearth flue gas branch pipe 6, a collecting pipe I7, a collecting pipe II 8, a high-temperature regulating valve 9, a spark catcher 10, a bag-type dust collector 11, an ash conveying screw machine 12, an ash discharging valve 13, a compressed air storage tank 14, an induced draft fan 15 and a chimney.
Detailed Description
According to fig. 1, the utility model comprises an aluminum melting furnace 1;
a hearth flue gas branch pipe 5 and a furnace door flue gas branch pipe 4 are respectively arranged at the hearth and the furnace door of the aluminum melting furnace 1, and the hearth flue gas branch pipe 5 and the furnace door flue gas branch pipe 4 are communicated with an inlet of a spark catcher 9; the outlet of the spark catcher 9 is communicated with the bag-type dust collector 10;
the bottom end of the bag-type dust collector 10 is provided with an ash conveying screw machine 11 with an ash discharge valve 12; a compressed air inlet pipe is arranged at the top end of the bag-type dust collector 10 and is communicated with a compressed air storage tank 13;
the top of the bag-type dust collector 10 is communicated with an induced draft fan 14 through a pipeline, and the induced draft fan 14 is communicated with a chimney 15.
Further, a smoke collecting cover is arranged at the furnace door of the aluminum melting furnace 1 and is communicated with a furnace door smoke branch pipe 4 through a butterfly valve 3.
Further, a high-temperature regulating valve 8 is arranged on the hearth flue gas branch pipe 5.
The utility model has reasonable structure and convenient use; the flue gas in the hearth is collected through the hearth flue gas branch pipe, and a high-temperature regulating valve arranged on the hearth flue gas branch pipe can perform first-step cooling treatment on the flue gas; the hearth flue gas branch pipe and the furnace door flue gas branch pipe are communicated with the spark catcher together, so that sparks in flue gas can be effectively removed, and the safety is improved; and finally discharging the flue gas subjected to dust removal and purification in a chimney through a draught fan.
The flue gas collecting cover effectively controls the smoke concentration of the operation area, improves the flame invasion resistance of the cover body, reduces the deformation and the damage of the collecting cover in a long-term high-temperature environment, and prolongs the service life of the collecting cover; the distribution of airflow in the cover is strengthened, a negative pressure area below the cover opening is formed and expanded, the diffusion of the smoke in front of the furnace is effectively controlled, and better conditions are created for improving the environment of an operation area.
The spark catcher can effectively protect the bag type dust collector, and the design of the spark catching device is the combination of two principles of gravity settling and inertia dust removal. The flue gas enters the trap and then suddenly diffuses, turns and collides to separate out larger particles. Meanwhile, the retention time of the smoke in the trap is increased, and the effect of automatically extinguishing sparks is improved.
The bag-type dust collector adopts a CD type series long-bag low-pressure pulse bag-type dust collector with advanced technical performance, and the dust collector has four characteristics:
(1) the ash removal device has small self resistance, the pulse valve is opened and closed quickly, and the blowing pressure is reduced to 0.15-0.25 Mpa.
(2) The length of the filter bag is 6-8 m, and the occupied area of the equipment is small.
(3) The equipment has small resistance loss and low energy consumption for ash removal.
(4) The filter bag is convenient to disassemble and assemble, the contact time of an operator and the dust-containing filter bag is short, and the operation environment is good.
Considering the particularity of the production of the aluminum melting furnace system of our company, the flue gas is easy to condense. In order to prevent the corrosion of the flue gas to the system equipment and prolong the service life of the equipment, the following corrosion prevention measures are adopted for the main equipment of the dust removal system of the aluminum melting furnace:
(1) and preserving the heat of a bag type dust collector of a dust removal system of the aluminum melting furnace. Rock wool with the thickness of 100mm is selected as a heat insulation layer, the heat insulation layer is fixed on a wall plate outside the shell through metal hook nails, and the outer layer is protected by a metal plate with the thickness of 0.5 mm.
(2) The inner wall of the spark catcher and the inner surface of the flue gas main pipe behind the dust remover are coated with acid-resistant coating.
(3) The inner wall of the bag-type dust collector is lined with 316L stainless steel plates, and the upper box body is made of 316L full stainless steel plates.
(4) The materials of the fan shell, the impeller and the air inlet are 316L stainless steel, the material of the main shaft is 2Cr13, and the bearing is an NSK inlet bearing.
(5) The filter bag is made of high-temperature resistant composite filter material subjected to waterproof treatment.
The dust removing system of the dust rubbing machine is reasonably configured, and the backward appearance of the dust rubbing machine system is rapidly changed. According to the different working conditions of the ash rubbing machine system, a plurality of dust suction ports are arranged: the dust-collecting system comprises a dust-collecting opening at a charging opening of the vertical dust-rubbing machine, a dust-collecting opening at a discharging groove of the dust-rubbing machine, a dust-collecting opening of the rotary grading sieve and the like, and the dust-collecting system provides required air suction volume for each dust-collecting opening. On the premise that the dust removal system fully plays a role, the ash rubbing process becomes a separation process of aluminum slag and dust, and particularly in the rotary grading sieve, the dust in the ash slag is completely separated and sent to a bag type dust collector for recovery. The aluminum slag ash is automatically separated after entering the ash rubbing machine, the ash is thoroughly treated, aluminum water flows under the bottom of the pan, the ash is loaded under the grading screen, and dust is unloaded under the dust remover, so that secondary dust raising is eliminated, more importantly, the labor intensity is reduced, the operation environment is completely changed, and a good effect is achieved.
The inner wall of the spark catcher and the inner surface of the flue gas main pipe behind the dust remover are coated with acid-resistant coating. The inner wall of the bag-type dust collector is lined with 316L stainless steel plates, and the upper box body is made of 316L full stainless steel plates. The materials of the fan shell, the impeller and the air inlet are 316L stainless steel, the material of the main shaft is 2Cr13, and the bearing is an NSK inlet bearing. The filter bag is made of high-temperature resistant composite filter material subjected to waterproof treatment.
The utility model discloses a from design, equipment manufacturing, installation, debugging until putting into production, through using the proof, system continuous operation is normal, the stable performance, the effect is showing. The process is simple to operate, the equipment is convenient to maintain, and all technical performance indexes reach the design requirements. The technical task to be solved by the utility model is completed, and the market demand for a clean and efficient flue gas dust removal system of an aluminum melting furnace is met.
Claims (3)
1. A clean and high-efficiency smoke dust removing device of an aluminum melting furnace comprises an aluminum melting furnace (1); the method is characterized in that:
a hearth flue gas branch pipe (5) and a furnace door flue gas branch pipe (4) are respectively arranged at a hearth and a furnace door of the aluminum melting furnace (1), and the hearth flue gas branch pipe (5) and the furnace door flue gas branch pipe (4) are communicated with an inlet of a spark catcher (9) together; the outlet of the spark catcher (9) is communicated with the bag-type dust collector (10);
the bottom end of the bag-type dust collector (10) is provided with an ash conveying screw machine (11) with an ash discharging valve (12); a compressed air inlet pipe is arranged at the top end of the bag-type dust collector (10), and the compressed air inlet pipe is communicated with a compressed air storage tank (13);
the top of the bag-type dust collector (10) is communicated with an induced draft fan (14) through a pipeline, and the induced draft fan (14) is communicated with a chimney (15).
2. The clean and efficient flue gas dust removal device for the aluminum melting furnace according to claim 1, wherein a flue gas collection cover is arranged at a furnace door of the aluminum melting furnace (1), and the flue gas collection cover is communicated with a furnace door flue gas branch pipe (4) through a butterfly valve (3).
3. The device for removing dust from the flue gas of the clean and efficient aluminum melting furnace as claimed in claim 1, wherein the furnace flue gas branch pipe (5) is provided with a high temperature regulating valve (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920786036.5U CN210198113U (en) | 2019-05-29 | 2019-05-29 | Clean high-efficient aluminium stove flue gas dust collector that melts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920786036.5U CN210198113U (en) | 2019-05-29 | 2019-05-29 | Clean high-efficient aluminium stove flue gas dust collector that melts |
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| Publication Number | Publication Date |
|---|---|
| CN210198113U true CN210198113U (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920786036.5U Active CN210198113U (en) | 2019-05-29 | 2019-05-29 | Clean high-efficient aluminium stove flue gas dust collector that melts |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332812A (en) * | 2019-05-29 | 2019-10-15 | 凯米特新材料科技有限公司 | A kind of cleaning highly effective aluminium-melting kiln gas dust-extraction unit |
-
2019
- 2019-05-29 CN CN201920786036.5U patent/CN210198113U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332812A (en) * | 2019-05-29 | 2019-10-15 | 凯米特新材料科技有限公司 | A kind of cleaning highly effective aluminium-melting kiln gas dust-extraction unit |
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