CN209857672U - A flue gas collection device for ferrosilicon pouring - Google Patents
A flue gas collection device for ferrosilicon pouring Download PDFInfo
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- CN209857672U CN209857672U CN201920250467.XU CN201920250467U CN209857672U CN 209857672 U CN209857672 U CN 209857672U CN 201920250467 U CN201920250467 U CN 201920250467U CN 209857672 U CN209857672 U CN 209857672U
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Abstract
A flue gas collecting device for ferrosilicon pouring comprises a flue gas collecting unit, a flue gas collecting box and a bag-type dust collector, wherein the flue gas collecting unit comprises a flue gas collecting cover and a flue gas guiding component, the flue gas collecting cover is buckled right above a pouring head of a pouring fixed die component, the flue gas collecting box is arranged at the top of the flue gas collecting cover, and the flue gas guiding component comprises a plurality of compressed air injection nozzles arranged at two sides of the pouring head, the negative pressure is formed below the smoke collecting box, certain power can be provided for smoke entering the smoke collecting box, and zero discharge of the smoke is achieved.
Description
Technical Field
The utility model relates to a ferrosilicon smelts flue gas collecting device technical field, in particular to a flue gas collection device for ferrosilicon pouring.
Background
The ferrosilicon ore heating furnace has higher speed in recent development, the furnace type is more developed from 16500KVA to 25500KVA, the high-energy-consumption small furnace type gradually exits the market along with the further increase of the national environment-friendly and energy-saving form, and the large-scale furnace condition with high-efficiency, environment-friendly and energy-saving technical content is continuously brought forward. From 25500KVA and 33000KVA to the current 4500KVA ore furnace, 63000KVA ore furnace is built. The traditional ferrosilicon ore heating furnace generally adopts a traveling ladle to travel to a fixed casting mold cavity for casting when casting iron. Because the furnace type is big, output is high, and during the casting, the flue gas in the ferrosilicon liquid will not organize and discharge in the atmosphere, causes great pollution to the air, does not accord with national environmental protection policy.
Disclosure of Invention
In view of the above, it is necessary to provide a flue gas collecting device for ferrosilicon casting, which can effectively collect the micro silicon powder in the flue gas.
A flue gas collecting device for ferrosilicon pouring comprises a flue gas collecting unit, a flue gas collecting box and a bag-type dust remover, wherein the flue gas collecting unit comprises a flue gas collecting cover and a flue gas diversion assembly, the flue gas collecting cover is buckled right above a pouring head of a pouring fixed die assembly, the flue gas collecting cover is open in the front-back direction, the flue gas collecting box is arranged at the top of the flue gas collecting cover, a first flue gas collecting hole is formed in the top wall of the flue gas collecting cover, a second flue gas collecting hole is formed in the bottom wall of the flue gas collecting box, the first flue gas collecting hole and the second flue gas collecting hole are coaxially arranged, so that an inner cavity of the flue gas collecting cover is communicated with an inner cavity of the flue gas collecting box through the first flue gas collecting hole and the second flue gas collecting hole, a flue gas discharge port is formed in one side of the flue gas collecting box, the flue gas discharge port of the flue gas collecting box is connected with an inlet of the bag-type dust, compressed gas outlets of the compressed air injection nozzles all point to the first smoke collecting holes of the smoke collecting cover, so that after high-pressure air injected by the compressed air injection nozzles enters the smoke collecting box, negative pressure is formed below the first smoke collecting holes, and smoke generated at the pouring head below the first smoke collecting holes is guided to enter the smoke collecting box.
Preferably, the compressed air injection nozzles are uniformly distributed along the periphery of the pouring head, so that high-pressure air injected by the compressed air injection nozzles forms a compressed air wall which gradually reduces from bottom to top between the bottom wall of the flue gas collecting cover and the top wall of the flue gas collecting cover, and further, flue gas generated at the pouring head is prevented from flowing out from the open ends at the two sides of the flue gas collecting cover.
Preferably, the flue gas collecting unit further comprises a flue gas cover assembly, the flue gas cover assembly comprises a flue gas collecting cover and a first cylinder, the flue gas collecting cover is arranged at the position of the first flue gas collecting hole, the first cylinder is fixed at the top of the flue gas collecting box, the fixed end of the first cylinder is fixedly connected with the flue gas collecting box, and the telescopic end of the first cylinder is fixedly connected with the flue gas collecting cover so as to drive the flue gas collecting cover to move up and down through the telescopic action of the first cylinder, and then the first flue gas collecting hole is covered or opened.
Preferably, the side wall and the top wall of the flue gas collecting cover are both composed of an inner wall and an outer wall, rake tooth-shaped columns are densely distributed on the inner side surface of the outer wall, one ends of the columns are fixedly connected with the outer wall, the other ends of the columns freely extend at a certain angle with the inner side surface of the outer wall, and the inner wall is made of refractory materials poured between the rake tooth-shaped columns on the inner side surface of the outer wall.
Preferably, the side wall, the top wall and the bottom wall of the smoke collection box are of sandwich structures, the sandwich layers of the side wall, the top wall and the bottom wall of the smoke collection box are communicated with each other, the bottom of the side wall of the smoke collection box is provided with a cold water inlet communicated with the sandwich layer, the top wall of the smoke collection box is provided with a hot water outlet communicated with the sandwich layer, the hot water outlet is connected with an inlet of a temporary storage water tank of the bath pool, and the cold water inlet is connected with an outlet of a low-temperature water supply source.
The beneficial effects of the utility model reside in that, behind the highly-compressed air that compressed air jet nozzle erupted got into the flue gas collecting box, can prevent the flue gas and collect the smoke and dust in the cover and discharge from both sides, highly-compressed air's efflux effect, make the highly-compressed air border wrap up and hold the flue gas on every side and collect the cover to the flue gas together and flow, have the water conservancy diversion effect, again, highly-compressed air's efflux effect, make behind highly-compressed air entering flue gas collecting box, form the negative pressure below the flue gas collecting box, can also provide certain power for the flue gas gets into the flue gas collecting box, zero outer row of flue gas has been realized, furthermore, start the flue gas that the sack cleaner produced when watering iron in collecting the flue gas collecting box, pass through the sack cleaner again, retrieve little silica flour, little silica flour uses as the batching of cement industry, the make full.
Drawings
FIG. 1 is a front view of the flue gas collecting device for ferrosilicon casting.
FIG. 2 is a sectional view of the flue gas collecting apparatus for ferrosilicon casting shown in FIG. 1 taken along the A-A direction.
FIG. 3 is a sectional view of the flue gas collecting apparatus for ferrosilicon casting shown in FIG. 2 taken along the direction B-B.
In the figure: the device comprises a flue gas collecting unit 10, a flue gas collecting cover 11, an inner wall 111, an outer wall 112, a column 113, a first flue gas collecting hole 114, a flue gas guide assembly 12, a compressed air injection nozzle 121, a flue gas cover assembly 13, a flue gas collecting cover 131, a first air cylinder 132, a flue gas collecting box 20, a second flue gas collecting hole 21, a pouring fixed mold assembly 30 and a pouring head 31.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Referring to fig. 1 to 3, an embodiment of the present invention provides a flue gas collecting device for silicon iron casting, including a flue gas collecting unit 10, a flue gas collecting box 20, and a bag-type dust collector, the flue gas collecting unit 10 includes a flue gas collecting cover 11 and a flue gas guiding component 12, the flue gas collecting cover 11 is covered and buckled over a casting head 31 of a casting fixed mold component 30, the front and back directions of the flue gas collecting cover 11 are both open, the front and back directions referred to herein are inside and outside the paper in fig. 1, the flue gas collecting box 20 is disposed at the top of the flue gas collecting cover 11, a first flue gas collecting hole 114 is opened at the top wall of the flue gas collecting cover 11, a second flue gas collecting hole 21 is opened at the bottom wall of the flue gas collecting box 20, the first flue gas collecting hole 114 and the second flue gas collecting hole 21 are coaxially arranged, so as to communicate the inner cavity of the flue gas collecting cover 11 with the inner cavity of the flue gas collecting box 20 through the first flue, a smoke discharge port is formed in one side of the smoke collection box 20, the smoke discharge port of the smoke collection box 20 is connected with an inlet of a bag-type dust collector through a pipeline, the smoke guide assembly 12 comprises a plurality of compressed air injection nozzles 121 arranged on two sides of the pouring head 31, compressed gas outlets of the compressed air injection nozzles 121 all point to a first smoke collection hole 114 of the smoke collection cover 11, so that after high-pressure air injected by the compressed air injection nozzles 121 enters the smoke collection box 20, negative pressure is formed below the first smoke collection hole 114, and smoke generated at the position of the pouring head 31 below the first smoke collection hole 114 is guided to enter the smoke collection box 20.
In the embodiment, the melt flows out from one side of the flue gas collecting cover 11, so that the problem of flue gas emission is difficult to solve by adopting a conventional closed structure.
The utility model has the advantages that after the high-pressure air ejected by the compressed air ejection nozzle 121 enters the smoke collection box 20, can prevent the smoke dust in the smoke collecting cover 11 from being discharged from two sides, the jet flow function of high-pressure air, the smoke around the high-pressure air boundary flows to the smoke collecting cover 11, which has the function of flow guiding, and the high-pressure air enters the smoke collecting box 20 by the jet flow function of the high-pressure air, the negative pressure is formed below the flue gas collecting box 20, certain power can be provided for flue gas entering the flue gas collecting box 20, zero exhaust of the flue gas is achieved, in addition, the bag-type dust collector is started when iron is poured, the flue gas generated when the iron is poured is collected into the flue gas collecting box 20, micro silicon powder is recovered through the bag-type dust collector, and the micro silicon powder is used as a material for the cement industry, so that the full utilization of resources is achieved, and the atmospheric environment is protected.
Referring to fig. 1 to 3, further, the compressed air injection nozzles 121 are uniformly distributed along the periphery of the pouring head 31, so that the high-pressure air injected by the compressed air injection nozzles 121 forms a compressed air wall which gradually reduces from bottom to top between the bottom wall of the flue gas collection hood 11 and the top wall of the flue gas collection hood 11, and further, the flue gas generated at the pouring head 31 is prevented from flowing out from the open ends at both sides of the flue gas collection hood 11.
Referring to fig. 1 and 2, further, the flue gas collecting unit 10 further includes a flue gas cover assembly 13, the flue gas cover assembly 13 includes a flue gas collecting cover 131, a first cylinder 132, the flue gas collecting cover 131 is disposed at the first flue gas collecting hole 114, the first cylinder 132 is fixed at the top of the flue gas collecting box 20, the fixed end of the first cylinder 132 is fixedly connected with the flue gas collecting box 20, the telescopic end of the first cylinder 132 is fixedly connected with the flue gas collecting cover 131, so as to drive the flue gas collecting cover 131 to move up and down through the telescopic operation of the first cylinder 132, and further cover or open the first flue gas collecting hole 114.
In the present embodiment, the first cylinder 132 and the compressed air injection nozzle 121 are both connected to an air compressor.
Referring to fig. 1 and 2, the side wall and the top wall of the flue gas collecting hood 11 are both composed of an inner wall 111 and an outer wall 112, rake teeth-shaped columns 113 are densely distributed on the inner side surface of the outer wall 112, one end of each column 113 is fixedly connected with the outer wall 112, the other end of each column 113 freely extends at a certain angle with the inner side surface of the outer wall 112, and the inner wall 111 is made of a refractory material poured between the rake teeth-shaped columns 113 on the inner side surface of the outer wall 112.
In this embodiment, the columns 113 are welded to the inner side of the outer wall 112 of the flue gas collecting hood 11, and then the refractory material is filled between the columns 113 to form the inner wall 111, so that the bonding strength between the inner wall 111 and the outer wall 112 is ensured, and a composite body formed by the columns 113 and the inner wall 111 can resist the scouring of high-temperature flue gas.
Referring to fig. 2, further, the side wall, the top wall and the bottom wall of the flue gas collection box 20 are all of a sandwich structure, the sandwich layers of the side wall, the top wall and the bottom wall of the flue gas collection box 20 are communicated with each other, the bottom of the side wall of the flue gas collection box 20 is provided with a cold water inlet communicated with the sandwich layer, the top wall of the flue gas collection box 20 is provided with a hot water outlet communicated with the sandwich layer, the hot water outlet is connected with an inlet of a temporary storage water tank of the bath pool, and the cold water inlet is connected with an.
The embodiment of the utility model provides a module or unit in the device can merge, divide and delete according to actual need.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (5)
1. The utility model provides a flue gas collection device for ferrosilicon pouring which characterized in that: the device comprises a flue gas collecting unit, a flue gas collecting box and a bag-type dust remover, wherein the flue gas collecting unit comprises a flue gas collecting cover and a flue gas diversion assembly, the flue gas collecting cover is buckled right above a casting head of a casting fixed die assembly, the front and back directions of the flue gas collecting cover are both opened, the flue gas collecting box is arranged at the top of the flue gas collecting cover, a first flue gas collecting hole is formed in the top wall of the flue gas collecting cover, a second flue gas collecting hole is formed in the bottom wall of the flue gas collecting box, the first flue gas collecting hole and the second flue gas collecting hole are coaxially arranged so as to communicate the inner cavity of the flue gas collecting cover with the inner cavity of the flue gas collecting box through the first flue gas collecting hole and the second flue gas collecting hole, a flue gas discharge port is formed in one side of the flue gas collecting box, the flue gas discharge port of the flue gas collecting box is connected with the inlet of the, compressed gas outlets of the compressed air injection nozzles all point to the first smoke collecting holes of the smoke collecting cover, so that after high-pressure air injected by the compressed air injection nozzles enters the smoke collecting box, negative pressure is formed below the first smoke collecting holes, and smoke generated at the pouring head below the first smoke collecting holes is guided to enter the smoke collecting box.
2. The flue gas collecting device for ferrosilicon casting according to claim 1, characterized in that: the compressed air injection nozzles are uniformly distributed along the periphery of the pouring head, so that high-pressure air injected by the compressed air injection nozzles forms a compressed air wall which gradually reduces from bottom to top between the bottom wall of the flue gas collecting cover and the top wall of the flue gas collecting cover, and further flue gas generated at the pouring head is prevented from flowing out from the open ends of the two sides of the flue gas collecting cover.
3. The flue gas collecting device for ferrosilicon casting according to claim 1, characterized in that: the flue gas collecting unit further comprises a flue gas cover assembly, the flue gas cover assembly comprises a flue gas collecting cover and a first cylinder, the flue gas collecting cover is arranged at the position of the first flue gas collecting hole, the first cylinder is fixed at the top of the flue gas collecting box, the fixed end of the first cylinder is fixedly connected with the flue gas collecting box, and the telescopic end of the first cylinder is fixedly connected with the flue gas collecting cover so as to drive the flue gas collecting cover to move up and down through the telescopic movement of the first cylinder, and then the first flue gas collecting hole is covered or opened.
4. The flue gas collecting device for ferrosilicon casting according to claim 1, characterized in that: the side wall and the top wall of the flue gas collecting cover are both composed of an inner wall and an outer wall, rake teeth-shaped columns are densely distributed on the inner side surface of the outer wall, one ends of the columns are fixedly connected with the outer wall, the other ends of the columns freely extend at a certain angle with the inner side surface of the outer wall, and the inner wall is made of refractory materials poured between the rake teeth-shaped columns on the inner side surface of the outer wall.
5. The flue gas collecting device for ferrosilicon casting according to claim 4, characterized in that: the side wall, the top wall and the bottom wall of the smoke collecting box are of sandwich structures, the interlayers of the side wall, the top wall and the bottom wall of the smoke collecting box are mutually communicated, the bottom of the side wall of the smoke collecting box is provided with a cold water inlet communicated with the interlayer of the smoke collecting box, the top wall of the smoke collecting box is provided with a hot water outlet communicated with the interlayer of the smoke collecting box, the hot water outlet is connected with an inlet of a temporary storage water tank of the bath pool, and the cold water inlet is connected with an outlet of a low-.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920250467.XU CN209857672U (en) | 2019-02-28 | 2019-02-28 | A flue gas collection device for ferrosilicon pouring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920250467.XU CN209857672U (en) | 2019-02-28 | 2019-02-28 | A flue gas collection device for ferrosilicon pouring |
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| Publication Number | Publication Date |
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| CN209857672U true CN209857672U (en) | 2019-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920250467.XU Active CN209857672U (en) | 2019-02-28 | 2019-02-28 | A flue gas collection device for ferrosilicon pouring |
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| CN (1) | CN209857672U (en) |
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