CN116839380B - Discharging flue gas collection system for industrial silicon furnace - Google Patents
Discharging flue gas collection system for industrial silicon furnace Download PDFInfo
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- CN116839380B CN116839380B CN202311007438.8A CN202311007438A CN116839380B CN 116839380 B CN116839380 B CN 116839380B CN 202311007438 A CN202311007438 A CN 202311007438A CN 116839380 B CN116839380 B CN 116839380B
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 239000003546 flue gas Substances 0.000 title claims abstract description 20
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 15
- 239000010703 silicon Substances 0.000 title claims abstract description 15
- 238000007599 discharging Methods 0.000 title abstract description 5
- 239000003517 fume Substances 0.000 claims abstract description 60
- 238000003723 Smelting Methods 0.000 claims abstract description 32
- 206010022000 influenza Diseases 0.000 claims abstract description 15
- 230000009970 fire resistant effect Effects 0.000 claims description 29
- 239000000779 smoke Substances 0.000 claims description 28
- 230000005540 biological transmission Effects 0.000 claims description 23
- 230000007246 mechanism Effects 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 9
- 210000002445 nipple Anatomy 0.000 claims description 8
- 238000010079 rubber tapping Methods 0.000 claims description 8
- 239000011449 brick Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000003570 air Substances 0.000 description 17
- 238000012423 maintenance Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 210000001503 joint Anatomy 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J13/00—Fittings for chimneys or flues
- F23J13/02—Linings; Jackets; Casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The invention discloses a discharging flue gas collection system for an industrial silicon furnace; belongs to the technical field of industrial silicon smelting; the system comprises a rotatable smelting electric furnace, a fume collecting hood and an annular flue, wherein the fume collecting hood is matched with the annular flue, the annular flue comprises a semi-annular flue, a collecting flue and two branch pipe flues connected between two ends of the semi-annular flue and one end of the collecting flue, the semi-annular flue is formed by splicing a plurality of short-joint flues, a valve device is arranged on the lower side of the inner part of the short-joint flue, a fume outlet of the fume collecting hood can be correspondingly arranged below the semi-annular flue, the fume collecting hood and the outer wall of the smelting electric furnace are arranged at intervals to form a drainage channel, a fume inlet is formed on the lower side of the short-joint flue, and the valve device is plugged on the upper side of the fume inlet. The application of the invention can improve the suction capacity of the flue, improve the flue gas treatment capacity, promote the flue gas to be cooled and prolong the service life of equipment.
Description
Technical Field
The invention belongs to the technical field of industrial silicon smelting, and particularly relates to a discharging flue gas collection system for an industrial silicon furnace.
Background
The smelting electric furnace outlet flue gas treatment system comprises a fume collecting hood, an annular flue, a fan, a cloth bag suction dust removal device and the like, wherein: the fume collecting hood is fixed at the furnace outlet, and the number of fume collecting hoods is five, and one side edge of the fume collecting hood is in a sealing connection structure with the furnace body; the annular flue adopts a split structure of a bottom plate and an upper cover, the bottom plate is fixed on the furnace body and rotates together with the fume collecting hood along with the furnace body, the upper cover is n-shaped, and the upper cover is hung at the bottom of a +5.300m floor slab and is of a fixed structure; during normal production, a large amount of high-temperature flue gas generated by tapping can be mixed with ambient air only by opening a manual valve of the fume collecting hood and the annular flue corresponding to the tapping hole, and the mixture is pumped to other operation areas through a draught fan. When the system is applied for a long time, the thermal deformation of equipment such as a furnace body, a fume collecting hood, an annular flue and the like starts to develop gradually, the gap between the annular flue bottom plate and an upper cover is enlarged (the gap between the annular flue bottom plate and the upper cover is 100 mm), so that the pumping capacity of the annular flue is insufficient, smoke dust cannot be effectively discharged, meanwhile, the fume collecting hood is structurally designed to enable the fume collecting hood to pump air only from the front direction and the left and right directions, the air quantity mixed with the smoke gas is insufficient, the temperature of the smoke gas is too high, the annular flue and dust removing equipment are damaged easily, and the service life of the equipment is influenced.
Disclosure of Invention
The invention aims to provide a discharging flue gas collecting system for an industrial silicon furnace, which is used for solving the technical problems that the existing flue gas treatment system is insufficient in flue gas pumping capacity, cannot effectively discharge smoke and is easy to damage equipment due to overhigh temperature during flue gas pumping.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the utility model provides a play stove flue gas collecting system for industrial silicon stove, includes rotatable smelting electric stove, establishes the collection petticoat pipe on the smelting electric stove, encloses the annular flue of establishing at smelting electric stove periphery and being located upper position department, collection petticoat pipe and annular flue cooperation, the annular flue includes semi-annular flue, collects the flue and connects two branch pipe flues between semi-annular flue both ends and collection flue one end, semi-annular flue comprises a plurality of nipple joint flues concatenation, every the inside downside of nipple joint flue is equipped with valve device, the exhaust port of collection petticoat pipe can correspond in semi-annular flue below to with at most three nipple joint flue is corresponding, collection petticoat pipe and smelting electric stove outer wall interval are laid and are formed the drainage passageway, collection petticoat pipe is located smelting electric stove play stove mouth top, nipple joint flue downside is equipped with the inlet, valve device shutoff is in inlet upside.
Further, the short flue comprises a cylinder body which is transversely arranged and has a rectangular section, flanges arranged at two ends of the cylinder body, and a refractory brick wall arranged on the inner wall of the cylinder body; a smoke inlet is formed in the lower side of the cylinder; the valve device comprises a fire-resistant baffle plate arranged in the cylinder body and covering the upper side of the smoke inlet, a driving mechanism arranged on the cylinder body and connected with the fire-resistant baffle plate, and a telescopic butt-joint cylinder device arranged on the lower side of the cylinder body and in transmission fit with the fire-resistant baffle plate, wherein the driving mechanism drives the fire-resistant baffle plate to plug or open the smoke inlet when in action, and drives the telescopic butt-joint cylinder device to carry out telescopic movement when in action.
Further, the driving mechanism comprises an air cylinder, a turning arm and a transmission chain, wherein one end of the air cylinder is hinged to the outer wall of the cylinder, the inflection point of the air cylinder is hinged to the outer wall of the cylinder, and the transmission chain penetrates through the outer wall of the cylinder, one end of the transmission chain is connected with the fire-resistant baffle, and the other end of the transmission chain is connected with one free end of the turning arm; the piston rod end of the cylinder is hinged with the other free end of the crank arm, one side edge of the fire-resistant baffle is hinged on the inner wall of the cylinder body, the axial lead of the fire-resistant baffle when the fire-resistant baffle is turned over is parallel to the length direction of the cylinder body, and the turning angle range of the fire-resistant baffle relative to the bottom wall of the cylinder body is 30-45 degrees.
Further, the telescopic butt joint barrel device comprises two sleeves which are arranged at the lower side of the barrel smoke inlet and are in nested fit, and a transmission mechanism arranged on the barrel; the transmission structure comprises a sliding rod longitudinally penetrating through the cylinder body and in sliding fit with the cylinder body, a pressing plate arranged on the upper side of the fireproof baffle and pressed on the top end of the sliding rod, a connecting plate arranged at the lower end of the sliding rod and propped against the edge of the lower end of the sleeve, and a spring sleeved on the sliding rod; one end of the spring is fixedly connected with the lower side wall surface of the cylinder body, and the other end of the spring is fixedly connected with the slide rod.
Further, the fume collecting hood comprises a rectangular vertical cylinder, two connecting battens which are arranged at two sides of the rectangular vertical cylinder in parallel at intervals, and a receiving cylinder which is arranged at the top end of the rectangular vertical cylinder; the lower end of the connecting strip extends to the lower part of the bottom end of the rectangular vertical cylinder and is connected with the outer wall of the smelting electric furnace, the rectangular vertical cylinder is correspondingly arranged above the outer side of the furnace outlet of the smelting electric furnace, the transverse cross section of the connecting cylinder is a sector, and the top end port of the connecting cylinder is at most corresponding to three smoke inlets.
Further, one end of the collecting flue is provided with a Y-shaped connecting pipe, and two ports of the Y-shaped connecting pipe are connected with the two branch pipe flues.
Further, a semi-annular air curtain machine is arranged on the outer side of the semi-annular flue.
The beneficial effects of the invention are as follows:
1. in structural design, the invention improves the original split-type annular flue into an annular flue structure consisting of a semi-annular flue, a collecting flue and two branch pipes. The semi-annular flue is formed by splicing a plurality of short-section flues, and the single short-section flue is easy to maintain independently under the condition of burning loss, so that the maintenance cost can be reduced, and the maintenance convenience can be improved;
2. the valve devices are arranged on each short flue, and after the fume collecting hood moves to the corresponding position of the corresponding short flue, at most three valve devices are opened, so that the fume collecting hood can be selectively stopped at any position of the semi-annular working area, and the fume collecting hood is prevented from being accelerated to be damaged due to concentrated action on a single fume collecting hood; the telescopic butt joint barrel device in the valve device can further reduce the distance between the semi-annular flue and the fume collecting hood, so that a smaller ineffective suction gap is formed, the suction force on the fume is larger, and the fume exhausting effect and efficiency are improved;
3. a drainage channel is further formed between the fume collecting hood and the outer wall of the smelting electric furnace, so that air can be sucked in four peripheral directions of the fume collecting hood and mixed with the fume, the temperature of the fume is promoted, the damage of high temperature to the annular fume channel is reduced, the service life of the whole equipment can be prolonged, the arranged valve device utilizes the opening characteristics of the valve device to protect the short-joint fume channel, the damage of high temperature to the annular fume channel can be further reduced, and the service life of the whole equipment is further prolonged.
Drawings
FIG. 1 is a schematic top view of the present invention;
FIG. 2 is a schematic structural view of the invention in a state where the short flue corresponds to the fume collecting hood;
wherein, 1-smelting an electric furnace; 2-fume collecting hood; 3-semi-annular flue; 4-collecting flue; 5-branch pipe flue; 6-Y-shaped connecting pipes; 7-short section flue; 8-a cylinder; 9-a flange; 10-firebrick wall; 11-a refractory baffle; 12-cylinder; 13-turning arms; 14-a drive chain; 15-short joint pipe; 16-sleeve; 17-a slide bar; 18-pressing plates; 19-connecting plates; 20-springs; 21-a rectangular vertical cylinder; 22-connecting the battens; 23-connecting a cylinder; 24-an air curtain machine.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings.
As shown in fig. 1 and 2, a tapping flue gas collection system for an industrial silicon furnace; the system comprises a rotatable smelting electric furnace 1, a fume collecting hood 2 and an annular flue. The core improvement of the system is to change the annular flue into a semi-annular flue 3, a collecting flue 4 and a branch pipe flue 5, and improve the concrete structure of the fume collecting hood 2. The suction capacity of the flue gas is improved through the improvement, irregular emission of smelting flue gas is avoided, and meanwhile the service life of the equipment can be prolonged through the improvement.
The annular flue is hung at the bottom of a floor slab of a smelting workshop through a plurality of steel bars or a frame body, and the annular flue integrally forms a ring-like structure; the annular flue is arranged around the periphery of the smelting electric furnace 1 and is positioned at the upper position so as to provide enough space for furnace ramming operation.
The annular flue specifically comprises a semi-annular flue 3, a branch flue 5 and a collecting flue 4. One end of the collecting flue 4 is connected with a fan through a pipeline; the cross section of the collecting flue 4 can be rectangular or circular, the other end of the collecting flue 4 is provided with a Y-shaped connecting pipe 6, and two ports of the Y-shaped connecting pipe 6 are connected with the two branch pipe flues 5. The section of the branch pipe flues 5 can be rectangular or circular, and two ports of the two branch pipe flues 5 are respectively connected with two ports of the semi-annular flues 3, so that the whole structure is similar to an annular structure.
The semi-annular flue 3 is formed by splicing a plurality of short-section flues 7 in structural design; the semi-annular flue 3 is used as a main easily damaged part, the maintenance speed and difficulty of the semi-annular flue 3 relate to the production and processing progress and quality, the splicing structure is designed to facilitate independent maintenance of each short-joint flue 7, the maintenance difficulty and the maintenance cost can be reduced, the maintenance speed can be improved, and if an independent short-joint flue 7 is damaged, the short-joint flue 7 can be independently maintained. And a valve device is further arranged on the lower side of the inner part of each short flue 7, and the valve device is communicated with the fume collecting hood 2 after being opened. The short flue 7 comprises a cylinder 8, a flange 9 and a refractory brick wall 10; the cylinder 8 is transversely distributed, the section of the cylinder is rectangular, flanges 9 are fixed at two ends of the cylinder 8, ports of the cylinder 8 are processed into oblique cut forms, and a plurality of cylinders 8 are spliced by the flanges; the firebrick wall 10 is laid only on the bottom of the bowl 8 and on an adjacent side wall. The bottom wall of each cylinder body 8 is also provided with a smoke inlet, and the valve device acts on the smoke inlet and realizes the opening and closing control of the smoke inlet.
The valve device comprises a fire-resistant baffle 11, a driving mechanism and a telescopic butt-joint cylinder device. The refractory baffle 11 is composed of a steel plate and refractory bricks connected to the lower side of the steel plate; the fire-resistant baffle 11 covers the smoke inlet, the fire-resistant baffle 11 is also connected to the bottom wall of the cylinder 8 through a hinge or other rotary connecting structures, and the axial lead of the fire-resistant baffle 11 when being turned over is parallel to the length direction of the cylinder 8. The driving mechanism comprises a cylinder 12, a crank arm 13 and a transmission chain 14; the action of the air cylinder 12 is uniformly controlled through a central control room, and one end of the air cylinder 12 is hinged on the outer wall of the cylinder body 8; the bending part of the crank arm 13 is hinged with the outer wall of the cylinder body 8; the transmission chain 14 is a steel chain, the transmission chain 14 penetrates through the outer wall of the cylinder 8, one end of the transmission chain is connected with the fire-resistant baffle 11, and the other end of the transmission chain is connected with one free end of the crank arm 13; the piston rod end of the cylinder 12 is hinged with the other free end of the crank arm 13; the short joint pipe 15 is welded at the cylinder 8 penetrated by the transmission chain 14, and the two ends of the short joint pipe 15 are of a bell mouth structure, so that the structure can avoid blocking the transmission chain 14 and reduce the resistance; the cylinder 8 is provided with a vent because of the arrangement of the short pipe 15, but is blocked by the part of the transmission chain 14, so that the effective vent clearance is smaller, and the whole suction capacity of the cylinder 8 is not affected. When the air cylinder 12 acts, the fire-resistant baffle 11 is pulled to overturn through the transmission chain 14, the overturning angle of the bottom wall of the cylinder 8 is controlled to be 30-45 degrees, and is preferably opened to be 45 degrees, at the moment, the fire-resistant baffle 11 forms a retracing path when smoke enters the semi-annular flue 3, so that the smoke is prevented from directly acting on the top of the cylinder 8, and burning of the smoke mainly occurs on the fire-resistant baffle 11, thus the burning of the top of the cylinder 8 can be reduced or reduced, and the damage of the cylinder 8 is avoided. The telescopic docking cylinder arrangement includes a sleeve 16 and a transmission mechanism. The sleeve 16 is provided with two telescopic structures which are nested and matched, one sleeve 16 is fixed at the lower side of the smoke outlet of the cylinder body 8, the other sleeve is relatively movable, and the section shape of the sleeve 16 is the same as that of the connecting cylinder 23 in the smoke collecting cover 2 and is a sector. The transmission structure comprises a slide bar 17, a pressing plate 18, a connecting plate 19 and a spring 20; the sliding rod 17 longitudinally penetrates through the cylinder body 8 and is in sliding fit with the cylinder body 8, the top end of the sliding rod 17 is of a spherical structure, a guide cylinder is arranged on the cylinder body 8, the sliding rod 17 is in sliding fit with the guide cylinder, and the sliding fit between the sliding rod 17 and the cylinder body 8 is realized through the guide cylinder substantially; the pressing plate 18 is bent and fixed on the upper side of the fireproof baffle 11, the pressing plate 18 is also covered on the top end of the slide rod 17, and the pressing plate 18 is also in sliding fit with the slide rod 17 so as to adapt to displacement changes generated when the pressing plate 18 presses the slide rod 17; the connecting plate 19 is fixed at the lower end of the sliding rod 17 and is propped against the edge of the lower end of the sleeve 16, and is used for lifting or lowering the sleeve 16; the spring 20 is sleeved on the slide bar 17, one end of the spring 20 is fixedly connected with the lower side wall surface of the cylinder 8, the other end of the spring 20 is fixedly connected with the slide bar 17, and the spring 20 is used for resetting the sleeve 16.
The fume collecting hood 2 is positioned above the outlet of the smelting electric furnace 1, and the fume collecting hood 2 comprises a rectangular vertical cylinder 21, a connecting lath 22 and a connecting cylinder 23. The connecting battens 22 are arranged in parallel at intervals and fixed on two sides of the rectangular vertical cylinder 21, the lower ends of the connecting battens 22 extend to the lower part of the bottom end of the rectangular vertical cylinder 21 and are connected with the outer wall of the smelting electric furnace 1, and the connecting mode can be a fixed connection mode or a detachable connection mode, and is preferably a detachable connection mode which is beneficial to overhaul and maintenance; the rectangular vertical cylinders 21 and the outer wall of the smelting electric furnace 1 are distributed at intervals, and form drainage channels, at the moment, negative pressure areas can be formed around the lower ends of the rectangular vertical cylinders 21, and mixing of air and smoke is promoted; the rectangular vertical cylinder 21 is correspondingly arranged above the outer side of the furnace outlet of the smelting electric furnace 1; the cross-sectional area of the connecting cylinder 23 is larger than that of the rectangular vertical cylinder 21, so as to enhance the suction capacity of the lower end of the rectangular vertical cylinder 21; the transverse section of the receiving cylinder 23 is in a sector shape, and the top end port of the receiving cylinder 23 corresponds to at most three smoke inlets and at least two smoke inlets; the sector-shaped connecting cylinder 23 is favorable for adapting to the arc-shaped structural characteristics of the semi-annular flue 3, so that the smoke inlet effectively corresponds to the connecting cylinder 23.
In the smelting process, a worker is also required to control the furnace tamping machine to carry out feeding and tamping operations at the furnace outlet; the high-temperature environment of the furnace outlet area influences the operation of workers, so that the temperature of the operation area is reduced, the workers are effectively protected, a semi-annular air curtain machine 24 connected with the bottom of a floor slab can be arranged on the periphery of an annular flue, and the semi-annular air curtain machine 24 is utilized to isolate high temperature and smoke dust.
The operation process and principle of the invention are as follows:
after the smelting electric furnace 1 stops rotating, controlling the corresponding valve device to be opened according to the position of the fume collecting hood 2; the valve is opened by controlling the contraction of the air cylinder 12 by using the central control room, the air cylinder 12 drives the crank arm 13 to turn over, the crank arm 13 pulls the fire-resistant baffle 11 to turn over through the transmission chain 14, and the smoke inlet is opened at the moment; in the process of overturning the fire-resistant baffle 11, the pressing plate 18 is used for extruding the slide bar 17 to move downwards and stretching the spring 20, the movable sleeve 16 after the slide bar 17 moves downwards relatively to the fixed sleeve 16 and approaches the receiving cylinder 23 under the action of gravity, so that the gap between the movable sleeve 16 and the receiving cylinder 23 is reduced, the semi-annular flue 3 and the fume collecting hood 2 are better in integration, and the lower port of the fume collecting hood 2 is higher in suction capacity. And then, controlling a fan connected with the collecting flue 4 to start, forming negative pressure in the whole annular flue, and utilizing the fume collecting hood 2 to pump away the fume at the outlet of the furnace to realize regular discharge of the fume. After the fume emission is finished, the extension of the cylinder 12 is controlled, and the refractory baffle 11 automatically falls back and compresses the fume inlet under the action of self gravity; in the resetting process of the fire-resistant baffle 11, based on the resetting action of the spring 20, the sliding rod 17 drives the movable sleeve 16 to move upwards through the connecting plate 19, so that interference between the fume collecting hood 2 and the sleeve 16 during rotation of the fume collecting hood along with a furnace is avoided. In the invention, the whole annular flue is relatively airtight, so that the suction capacity can be ensured; the semi-annular flue 3 is formed by splicing a plurality of short-section flues 7, and each short-section flue 7 is provided with a valve device, so that the fume collecting hood 2 can selectively stop at a designated position through the design of the splicing structure, and the fume collecting hood 2 is prevented from being damaged when acting on a single fume collecting hood 2 in a concentrated manner; the telescopic butt joint cylinder device in the valve device can reduce the gap after the semi-annular flue 3 is in butt joint with the fume collecting hood 2, and the suction capacity of the port of the fume collecting hood 2 is improved; a drainage channel is further formed between the fume collecting hood 2 and the wall body of the smelting electric furnace 1, a negative pressure area can be formed around the fume collecting hood 2 in structural design, mixing of fume and a large amount of air is promoted, cooling of the fume is promoted, and the service life of equipment is prolonged.
Claims (6)
1. The utility model provides a flue gas collection system that goes out for industrial silicon stove, includes rotatable smelting electric stove, establishes the collection petticoat pipe on the smelting electric stove, enclose the annular flue of establishing in smelting electric stove periphery and being located the top position department, collection petticoat pipe and annular flue cooperation, its characterized in that, annular flue includes semi-annular flue, collects flue and connects two branch pipe flues between semi-annular flue both ends and collection flue one end, semi-annular flue is by a plurality of nipple joint flues concatenation constitution, every the inside downside of nipple joint flue is equipped with valve device, the exhaust port of collection petticoat pipe can correspond in semi-annular flue below to with at most three nipple flues are corresponding, collection petticoat pipe and smelting electric stove outer wall interval layout and form the drainage passageway, collection petticoat pipe is located smelting electric stove play stove top, nipple joint flue downside is equipped with the mouth of intaking, valve device shutoff is in mouth upside; the short flue comprises a cylinder body which is transversely arranged and has a rectangular section, flanges arranged at two ends of the cylinder body, and a refractory brick wall arranged on the inner wall of the cylinder body; a smoke inlet is formed in the lower side of the cylinder; the valve device comprises a fire-resistant baffle plate arranged in the cylinder body and covering the upper side of the smoke inlet, a driving mechanism arranged on the cylinder body and connected with the fire-resistant baffle plate, and a telescopic butt-joint cylinder device arranged on the lower side of the cylinder body and in transmission fit with the fire-resistant baffle plate, wherein the driving mechanism drives the fire-resistant baffle plate to plug or open the smoke inlet when in action, and drives the telescopic butt-joint cylinder device to carry out telescopic movement when in action.
2. The tapping fume collection system for an industrial silicon furnace according to claim 1, wherein the driving mechanism comprises a cylinder with one end hinged to the outer wall of the cylinder, a crank arm with an inflection point hinged to the outer wall of the cylinder, and a transmission chain penetrating the outer wall of the cylinder and having one end connected with the fire-resistant baffle and the other end connected with one free end of the crank arm; the piston rod end of the cylinder is hinged with the other free end of the crank arm, one side edge of the fire-resistant baffle is hinged on the inner wall of the cylinder body, the axial lead of the fire-resistant baffle when the fire-resistant baffle is turned over is parallel to the length direction of the cylinder body, and the turning angle range of the fire-resistant baffle relative to the bottom wall of the cylinder body is 30-45 degrees.
3. The tapping flue gas collection system for an industrial silicon furnace according to claim 1, wherein the telescopic butt-joint barrel device comprises two sleeves which are arranged on the lower side of a barrel flue inlet and are in nested fit, and a transmission mechanism arranged on the barrel; the transmission mechanism comprises a sliding rod longitudinally penetrating through the cylinder body and in sliding fit with the cylinder body, a pressing plate arranged on the upper side of the fireproof baffle and pressed on the top end of the sliding rod, a connecting plate arranged at the lower end of the sliding rod and propped against the edge of the lower end of the sleeve, and a spring sleeved on the sliding rod; one end of the spring is fixedly connected with the lower side wall surface of the cylinder body, and the other end of the spring is fixedly connected with the slide rod.
4. A tapping fume collection system for an industrial silicon furnace according to any one of claims 1 to 3, wherein the fume collection hood comprises a rectangular vertical cylinder, two connecting strips arranged at two sides of the rectangular vertical cylinder in parallel and at intervals, and a receiving cylinder arranged at the top end of the rectangular vertical cylinder; the lower end of the connecting strip extends to the lower part of the bottom end of the rectangular vertical cylinder and is connected with the outer wall of the smelting electric furnace, the rectangular vertical cylinder is correspondingly arranged above the outer side of the furnace outlet of the smelting electric furnace, the transverse cross section of the connecting cylinder is a sector, and the top end port of the connecting cylinder is at most corresponding to three smoke inlets.
5. The tapping flue gas collection system for an industrial silicon furnace according to claim 1, wherein one end of the collecting flue is provided with a Y-shaped connecting pipe, and two ports of the Y-shaped connecting pipe are connected with two branch flue pipes.
6. A tapping flue gas collection system for an industrial silicon furnace as claimed in claim 1 wherein a semi-annular air curtain is provided outside the semi-annular flue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311007438.8A CN116839380B (en) | 2023-08-11 | 2023-08-11 | Discharging flue gas collection system for industrial silicon furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311007438.8A CN116839380B (en) | 2023-08-11 | 2023-08-11 | Discharging flue gas collection system for industrial silicon furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116839380A CN116839380A (en) | 2023-10-03 |
| CN116839380B true CN116839380B (en) | 2024-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311007438.8A Active CN116839380B (en) | 2023-08-11 | 2023-08-11 | Discharging flue gas collection system for industrial silicon furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116839380B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102445086A (en) * | 2011-09-01 | 2012-05-09 | 中冶东方工程技术有限公司 | Smoke collecting device of iron tapping hole of rotary electric furnace |
| CN207081345U (en) * | 2017-05-02 | 2018-03-09 | 内蒙古纳顺装备工程(集团)有限公司 | A kind of industrial silicon furnace |
| CN110319706A (en) * | 2018-03-29 | 2019-10-11 | 中国瑞林工程技术有限公司 | Metallurgical furnace flue |
| CN111023852A (en) * | 2019-12-30 | 2020-04-17 | 河南亚新窑炉有限公司 | Sliding closure formula fixed point fume extractor |
| CN114812207A (en) * | 2022-05-24 | 2022-07-29 | 内蒙古鄂尔多斯电力冶金集团股份有限公司 | Rotary type submerged arc furnace tapping and smoke discharging system |
| CN217541523U (en) * | 2022-06-21 | 2022-10-04 | 西安宏信矿热炉有限公司 | Hot stove of hot stove of rotary-type industrial silicon ore is discharged and is received cigarette system |
-
2023
- 2023-08-11 CN CN202311007438.8A patent/CN116839380B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445086A (en) * | 2011-09-01 | 2012-05-09 | 中冶东方工程技术有限公司 | Smoke collecting device of iron tapping hole of rotary electric furnace |
| CN207081345U (en) * | 2017-05-02 | 2018-03-09 | 内蒙古纳顺装备工程(集团)有限公司 | A kind of industrial silicon furnace |
| CN110319706A (en) * | 2018-03-29 | 2019-10-11 | 中国瑞林工程技术有限公司 | Metallurgical furnace flue |
| CN111023852A (en) * | 2019-12-30 | 2020-04-17 | 河南亚新窑炉有限公司 | Sliding closure formula fixed point fume extractor |
| CN114812207A (en) * | 2022-05-24 | 2022-07-29 | 内蒙古鄂尔多斯电力冶金集团股份有限公司 | Rotary type submerged arc furnace tapping and smoke discharging system |
| CN217541523U (en) * | 2022-06-21 | 2022-10-04 | 西安宏信矿热炉有限公司 | Hot stove of hot stove of rotary-type industrial silicon ore is discharged and is received cigarette system |
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| Publication number | Publication date |
|---|---|
| CN116839380A (en) | 2023-10-03 |
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