CN215766544U - Flue gas cooling device for industrial silicon smelting - Google Patents
Flue gas cooling device for industrial silicon smelting Download PDFInfo
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- CN215766544U CN215766544U CN202122135906.2U CN202122135906U CN215766544U CN 215766544 U CN215766544 U CN 215766544U CN 202122135906 U CN202122135906 U CN 202122135906U CN 215766544 U CN215766544 U CN 215766544U
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Abstract
The utility model discloses a flue gas cooling device for industrial silicon smelting, which relates to the technical field of industrial silicon smelting and comprises the following components: industry silicon processing cauldron, cooling tube, cooler bin and backward flow case, the one end fixed connection of cooling tube is at the top of industry silicon processing cauldron one side, the other end fixed connection of cooling tube is at the top of cooler bin one side, backward flow case fixed connection is in the bottom of cooler bin, the cooler bin is provided with installation cavity and cavity respectively with the inside of backward flow case, be provided with cooling body and backward flow mechanism in installation cavity and the cavity respectively. According to the utility model, through the matching of the cooling mechanism, the backflow mechanism and the water cooling mechanism, the problem of resource waste caused by that most of the existing flue gas cooling and dust removing devices are not provided with water resource recovery structures is solved, the effect of purifying and recycling waste water is realized, and the heat dissipation rate of hot water is increased, so that the flue gas cooling effect is improved.
Description
Technical Field
The utility model relates to the technical field of industrial silicon smelting, in particular to a flue gas cooling device for industrial silicon smelting.
Background
Industrial silicon, also known as metallic silicon, has emerged in connection with the semiconductor industry. It is an international common practice to separate commercial silicon into metallic silicon and semiconductor silicon. The metallic silicon is a product smelted by quartz and coke in an electric heating furnace, the content of a main component silicon element is about 98 percent (the content of Si is 99.99 percent and is also contained in the metallic silicon), and the rest impurities are iron, aluminum, calcium and the like. Semiconductor silicon is used for high purity metallic silicon for making semiconductor devices. The product is sold in the form of polycrystal or monocrystal, the former is cheap, and the latter is expensive. It is classified into various specifications depending on its use. According to statistics, about 50 million tons of metal silicon is consumed all over the world in 1985, wherein the metal silicon used for aluminum alloy accounts for about 60 percent, the metal silicon used for organic silicon accounts for less than 30 percent, the metal silicon used for semiconductors accounts for about 3 percent, and the rest metal silicon is used for steel smelting, precision ceramics and the like, and when industrial silicon is produced, an electric furnace can emit high-temperature smoke;
the prior art adopts modes such as sack cooling dust removal and spray cooling dust removal, but has the problems of low cooling and dust removal efficiency, low degree of automation and high technical cost.
The prior patent (publication number: CN111085065A) discloses an automatic ferrosilicon furnace flue gas cooling and dedusting device, which integrates cyclone dust removal, bag type dust remover and forced air cooling technology, adopts a microcomputer control system, has obvious ferrosilicon furnace flue gas cooling and dedusting effect, adopts the forced air cooling technology for a cooling module, can effectively reduce the flue gas temperature, can remove partial smoke dust, adopts the microcomputer control system to realize automatic control, and has the advantages of simple operation, high safety factor and low cost.
But the automatic ferrosilicon furnace flue gas cooling dust collector of above-mentioned design still has some shortcomings in practical application: according to the design, when the flue gas cooling and dust removing device cools down the flue gas, the air cooling mode is adopted, but the air mixing valve at the inlet of the fan cools down, the air draft of the electric furnace dust removing system can be caused to be insufficient, the flue gas has the overflow phenomenon, so the practicability of the method for cooling the flue gas is lower in practical application, the flue gas is cooled down and dedusted by using the spraying method in a small number at present, but most of the flue gas is not provided with a water recovery structure, because when the flue gas is sprayed, a large amount of water can be used, if the water is directly discharged after cooling the flue gas, the environment can be seriously influenced, the cost for cooling the flue gas can be greatly increased, and therefore, the flue gas cooling device for smelting industrial silicon is designed to solve the problem.
SUMMERY OF THE UTILITY MODEL
The utility model provides a flue gas cooling device for industrial silicon smelting, which solves the problem of water resource waste caused by that most of the existing flue gas cooling and dust removing devices are not provided with a recovery structure, realizes the effect of purifying and recycling waste water, and accelerates the heat dissipation rate of hot water, thereby being beneficial to improving the flue gas cooling effect.
In order to solve the technical problem, the utility model provides a flue gas cooling device for industrial silicon smelting, which comprises: industry silicon processing cauldron, cooling tube, cooler bin and backward flow case, the one end fixed connection of cooling tube is at the top of industry silicon processing cauldron one side, the other end fixed connection of cooling tube is at the top of cooler bin one side, backward flow case fixed connection is in the bottom of cooler bin, the cooler bin is provided with installation cavity and cavity respectively with the inside of backward flow case, be provided with cooling body and backward flow mechanism in installation cavity and the cavity respectively, cooling body is located backward flow mechanism directly over, one side of cooler bin is provided with the blast pipe.
Preferably, the cooling mechanism comprises a water storage tank, a drainage tube, a connecting tube and three atomizing nozzles, the water storage tank is fixedly connected to the top of the cooling tank, a liquid storage cavity is arranged inside the water storage tank, the drainage tube is fixedly connected to the bottom of one side of the water storage tank, the other end of the drainage tube is fixedly connected to the top of the cooling tank, an electromagnetic valve is arranged in the drainage tube, the connecting tube is fixedly connected to the top wall of the mounting cavity, the drainage tube is fixedly connected to the top of the connecting tube, the three atomizing nozzles are all arranged at the bottom of the connecting tube, clean water in the water storage tank flows into the connecting tube through the drainage tube by opening the electromagnetic valve, then the clean water is injected into the atomizing nozzles, then the flue gas in the industrial silicon processing kettle is introduced into the heat dissipation tube, at the moment, the flue gas enters the heat dissipation tube for natural cooling, and then the flue gas enters the cooling tank to be contacted with atomized water vapor sprayed by the atomizing nozzles for cooling, and finally, the flue gas is discharged into a specified cloth bag through an exhaust pipe, and the flue gas can be rapidly cooled.
Preferably, the backflow mechanism comprises a filter layer, a backflow pipe and a water pump, the filter layer is arranged in the cavity, the filter layer is positioned below the atomizing nozzle, the return pipe is fixedly connected with the bottom of one side of the return tank, the other end of the return pipe is fixedly connected with the top of one side of the water storage tank, the water pump is fixedly connected with one side of the bottom wall of the cavity, and part of the water pump is positioned in the return pipe, at the in-process of cooling off the flue gas, can vertically fall and contact the filter layer with the waste water of flue gas contact, filter residue net afterwards, activated carbon plate and drainage are cotton with the flue gas granule absorption in the waste water and purify, open the water pump, make the water of purifying the completion pass through the back flow get into the water storage box again in can, solved current flue gas cooling dust collector because of mostly not setting up water resource recovery structure, lead to having the problem of wasting of resources, realized can purify waste water and recycle the effect.
Preferably, still include water-cooling mechanism, water-cooling mechanism includes axis of rotation, servo motor, a plurality of puddler and two fans, the axis of rotation is rotated and is connected in the stock solution intracavity, and is a plurality of the puddler symmetry fixed connection is respectively in the both sides of axis of rotation, servo motor fixed connection is at the top of water storage box, just servo motor's drive shaft is connected, two with the one end transmission of axis of rotation fan symmetry fixed connection is at the roof in stock solution chamber, just the oblique below of air outlet orientation of fan through opening servo motor, makes the axis of rotation drive the puddler rotatory, stirs the water in the water storage box, then opens the fan, makes the fan blow off cold wind and cools off hot water, can accelerate hydrothermal rate of heat dissipation to help improving the refrigerated effect of flue gas.
Preferably, the filter layer includes filter residue net, active carbon plate and drainage cotton, filter residue net, active carbon plate and drainage cotton are from last down fixed setting in proper order, just filter residue net, active carbon plate and drainage cotton all are located the below of atomizer, can adsorb and filter impurity such as the suspended particles of adulteration in the waste water.
Preferably, the surface of cooling tube is including the aluminum alloy shell, the surface parcel of back flow has the copper metal shell, because the aluminum alloy heat absorption is stronger, so can improve the cooling effect to the flue gas, because the copper heat dissipation is stronger, so can improve the speed of water-cooling.
Preferably, the front side of cooler bin is provided with observation glass, observation glass is toughened glass, observes glass through setting up, can be convenient for personnel master the interior flue gas refrigerated condition of cooler bin.
Preferably, the front side of cooler bin is provided with the control panel, the equal electric connection of control panel and solenoid valve and servo motor through setting up the control panel, can make things convenient for personnel to control solenoid valve and servo motor.
Compared with the prior art, the flue gas cooling device for industrial silicon smelting provided by the utility model has the following beneficial effects:
1. in the utility model, by opening the electromagnetic valve, clean water in the water storage tank flows into the connecting pipe through the drainage pipe, and then the clean water is injected into the atomizing nozzle, then the flue gas in the industrial silicon processing kettle is introduced into a heat radiation pipe, the flue gas enters the heat radiation pipe for natural cooling, then the flue gas enters a cooling box to be contacted with atomized water vapor sprayed by an atomizing nozzle for cooling, and finally the flue gas is discharged into a specified cloth bag through an exhaust pipe, in the process, the waste water that contacts with the flue gas can vertically fall and contact the filter layer, filter residue net, activated carbon plate and drainage cotton adsorb and purify the flue gas granule in the waste water afterwards, open the water pump, make the water of purifying the completion pass through the back flow get into the water storage box again in can, solved current flue gas cooling dust collector because of mostly not setting up water resource recovery structure, lead to having the problem of extravagant resource, realized can purify waste water reuse's effect.
2. According to the utility model, the servo motor is started, the rotating shaft drives the stirring rod to rotate, hot water in the water storage tank is stirred, then the fan is started, cold air is blown out by the fan to cool the hot water, the heat dissipation rate of the hot water can be increased, the flue gas cooling effect can be improved, through the arrangement of the observation glass, personnel can conveniently master the flue gas cooling condition in the cooling tank, and through the arrangement of the control panel, personnel can conveniently control the electromagnetic valve and the servo motor.
Drawings
FIG. 1 is a schematic view of a three-dimensional structure of the exterior of a flue gas cooling device for industrial silicon smelting;
FIG. 2 is a schematic view of the internal structure of a cooling box of a flue gas cooling device for industrial silicon smelting;
FIG. 3 is a schematic view of the internal structure of a water storage tank of a flue gas cooling device for industrial silicon smelting;
FIG. 4 is a structural composition diagram of a filtering layer of a flue gas cooling device for industrial silicon smelting.
Reference numbers in the figures: 1. an industrial silicon processing kettle; 2. a radiating pipe; 3. a cooling tank; 4. a return tank; 5. a water storage tank; 6. a drainage tube; 7. a connecting pipe; 8. an atomizing spray head; 9. a filter layer; 10. a return pipe; 11. a water pump; 12. a rotating shaft; 13. a stirring rod; 14. a servo motor; 15. a fan; 16. filtering a residue net; 17. an activated carbon plate; 18. and (5) draining the cotton.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In a first embodiment, which is shown in fig. 1 to 4, a flue gas cooling device for industrial silicon smelting comprises: the industrial silicon processing kettle comprises an industrial silicon processing kettle 1, a radiating pipe 2, a cooling box 3 and a backflow box 4, wherein one end of the radiating pipe 2 is fixedly connected to the top of one side of the industrial silicon processing kettle 1, the other end of the radiating pipe 2 is fixedly connected to the top of one side of the cooling box 3, the backflow box 4 is fixedly connected to the bottom of the cooling box 3, an installation cavity and a cavity are respectively arranged in the cooling box 3 and the backflow box 4, a cooling mechanism and a backflow mechanism are respectively arranged in the installation cavity and the cavity, the cooling mechanism is positioned right above the backflow mechanism, and an exhaust pipe is arranged on one side of the cooling box 3;
the cooling mechanism comprises a water storage tank 5, a drainage tube 6, a connecting tube 7 and three atomizing spray heads 8, wherein the water storage tank 5 is fixedly connected to the top of the cooling tank 3, a liquid storage cavity is formed in the water storage tank 5, the drainage tube 6 is fixedly connected to the bottom of one side of the water storage tank 5, the other end of the drainage tube 6 is fixedly connected to the top of the cooling tank 3, an electromagnetic valve is arranged in the drainage tube 6, the connecting tube 7 is fixedly connected to the top wall of the mounting cavity, the drainage tube 6 is fixedly connected with the top of the connecting tube 7, the three atomizing spray heads 8 are arranged at the bottom of the connecting tube 7, clean water in the water storage tank 5 flows into the connecting tube 7 through the drainage tube 6 by opening the electromagnetic valve, then the clean water is injected into the atomizing spray heads 8, then the flue gas in the industrial silicon processing kettle 1 is introduced into the radiating tubes 2, at the moment, the flue gas enters the radiating tubes 2 for natural cooling, and then the flue gas enters the cooling tank 3 to be contacted with atomized water vapor sprayed by the atomizing spray heads 8 and cooled, finally, the flue gas is discharged into a designated cloth bag through an exhaust pipe;
the backflow mechanism comprises a filter layer 9, a backflow pipe 10 and a water pump 11, the filter layer 9 is arranged in the cavity, the filter layer 9 is located below the atomizing spray head 8, the backflow pipe 10 is fixedly connected to the bottom of one side of the backflow box 4, the other end of the backflow pipe 10 is fixedly connected to the top of one side of the water storage box 5, the water pump 11 is fixedly connected to one side of the bottom wall of the cavity, part of the water pump 11 is located in the backflow pipe 10, clean water in the water storage box 5 flows into the connecting pipe 7 through the drainage pipe 6 by opening the electromagnetic valve, then the clean water is injected into the atomizing spray head 8, then smoke in the industrial silicon processing kettle 1 is introduced into the radiating pipe 2, the smoke enters the radiating pipe 2 for natural cooling, then the smoke enters the cooling box 3 to be in contact with atomized water vapor sprayed by the atomizing spray head 8 for cooling, finally the smoke is discharged into a designated cloth bag through the exhaust pipe, in the process, waste water with the flue gas contact can vertically fall and contact filter layer 9, filter residue net 16 afterwards, activated carbon plate 17 and drainage cotton 18 adsorb the flue gas granule in with the waste water and purify, open water pump 11, make the water of purifying the completion pass through back flow 10 get into water storage box 5 again in can, to sum up, solved current flue gas cooling dust collector because of mostly not setting up the water resource recovery structure, lead to having the problem of resource waste, realized can purify waste water reuse's effect.
Embodiment two, on the basis of embodiment one, still include the water cooling mechanism, the water cooling mechanism includes axis of rotation 12, servo motor 14, a plurality of puddlers 13 and two fans 15, axis of rotation 12 rotates and connects in the stock solution intracavity, a plurality of puddlers 13 symmetry fixed connection respectively are in the both sides of axis of rotation 12, servo motor 14 fixed connection is at the top of water storage box 5, and the drive shaft of servo motor 14 is connected with the one end transmission of axis of rotation 12, two fans 15 symmetry fixed connection are at the roof of stock solution intracavity, and the air outlet of fan 15 is towards the below that inclines, through opening servo motor 14, make axis of rotation 12 drive puddler 13 rotatory, stir hot water in the water storage box 5, then open fan 15, make fan 15 blow out cold wind and cool off hot water, can accelerate the rate of hot water's heat dissipation, thereby help improving the effect of flue gas cooling, through opening servo motor 14, the rotating shaft 12 is enabled to drive the stirring rod 13 to rotate, hot water in the water storage tank 5 is stirred, then the fan 15 is started, the fan 15 blows cold air to cool the hot water, the heat dissipation rate of the hot water can be increased, and the effect of cooling flue gas is improved.
In this embodiment: the servo motor 14 is a motor of YL100-2 type.
In the third embodiment, on the basis of the first embodiment, the filter layer 9 includes a filter residue net 16, an activated carbon plate 17 and filter cotton 18, the filter residue net 16, the activated carbon plate 17 and the filter cotton 18 are sequentially and fixedly arranged from top to bottom, and the filter residue net 16, the activated carbon plate 17 and the filter cotton 18 are all located below the atomizer 8, and can adsorb and filter impurities such as suspended particles doped in the wastewater.
Fourth embodiment, on the basis of first embodiment, the surface of cooling tube 2 is including the aluminum alloy shell, and the surface parcel of back flow pipe 10 has the copper metal shell, because the aluminum alloy heat absorption is stronger to can improve the cooling effect to the flue gas, because the copper heat dissipation is stronger, with the speed that can improve the water-cooling.
Fifth, on the basis of the first embodiment, the observation glass is arranged on the front side of the cooling box 3 and is toughened glass, and through the arrangement of the observation glass, the cooling condition of the flue gas in the cooling box 3 can be conveniently mastered by personnel.
Sixth embodiment, on the basis of second embodiment, the front side of cooler bin 3 is provided with the control panel, and the control panel all electric connection with solenoid valve and servo motor 14, through setting up the control panel, can make things convenient for personnel to control solenoid valve and servo motor 14.
The working principle is as follows:
when the flue gas needs to be cooled and dedusted:
the first step is as follows: by opening the electromagnetic valve, clean water in the water storage tank 5 flows into the connecting pipe 7 through the drainage pipe 6, and then the clean water is injected into the atomizing nozzle 8, so that the atomizing nozzle 8 atomizes and sprays out the water;
the second step is that: then, introducing flue gas in the industrial silicon processing kettle 1 into the radiating pipe 2, naturally cooling the flue gas in the radiating pipe 2, and then cooling the flue gas in the cooling tank 3 to be in contact with atomized water vapor sprayed by the atomizing nozzle 8;
the third step: and finally, discharging the flue gas into a specified cloth bag through an exhaust pipe, vertically dropping the wastewater contacted with the flue gas and contacting the filter layer 9 in the last process, adsorbing and purifying flue gas particles in the wastewater by using the filter residue net 16, the activated carbon plate 17 and the filter cotton 18, and starting the water pump 11 to enable the purified water to reenter the water storage tank 5 through the return pipe 10.
When heating is required to cool the hot water:
the servo motor 14 is firstly started, the rotating shaft 12 drives the stirring rod 13 to rotate, hot water in the water storage tank 5 is stirred, then the fan 15 is started, cold air blown out by the fan 15 cools the hot water, the heat dissipation rate of the hot water can be increased, and the effect of cooling flue gas is improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A flue gas cooling device for industrial silicon smelting comprises: industry silicon processing cauldron (1), cooling tube (2), cooler bin (3) and backward flow case (4), its characterized in that, the one end fixed connection of cooling tube (2) is at the top of industry silicon processing cauldron (1) one side, the other end fixed connection of cooling tube (2) is at the top of cooler bin (3) one side, backward flow case (4) fixed connection is in the bottom of cooler bin (3), cooler bin (3) are provided with installation cavity and cavity respectively with the inside of backward flow case (4), be provided with cooling body and backward flow mechanism in installation cavity and the cavity respectively, cooling body is located backward flow mechanism directly over, one side of cooler bin (3) is provided with the blast pipe.
2. The flue gas cooling device for industrial silicon smelting according to claim 1, wherein the cooling mechanism comprises a water storage tank (5), a drainage tube (6), a connecting tube (7) and three atomizer nozzles (8), the water storage tank (5) is fixedly connected to the top of the cooling tank (3), a liquid storage cavity is arranged inside the water storage tank (5), the drainage tube (6) is fixedly connected to the bottom of one side of the water storage tank (5), the other end of the drainage tube (6) is fixedly connected to the top of the cooling tank (3), an electromagnetic valve is arranged in the drainage tube (6), the connecting tube (7) is fixedly connected to the top wall of the installation cavity, the drainage tube (6) is fixedly connected to the top of the connecting tube (7), and the three atomizer nozzles (8) are all arranged at the bottom of the connecting tube (7).
3. The flue gas cooling device for industrial silicon smelting of claim 2, wherein the backflow mechanism comprises a filter layer (9), a backflow pipe (10) and a water pump (11), the filter layer (9) is arranged in the cavity, the filter layer (9) is located below the atomizing nozzle (8), the backflow pipe (10) is fixedly connected to the bottom of one side of the backflow tank (4), the other end of the backflow pipe (10) is fixedly connected to the top of one side of the water storage tank (5), the water pump (11) is fixedly connected to one side of the bottom wall of the cavity, and part of the water pump (11) is located in the backflow pipe (10).
4. The flue gas cooling device for industrial silicon smelting of claim 1, characterized by further comprising a water cooling mechanism, the water cooling mechanism comprises a rotating shaft (12), a servo motor (14), a plurality of stirring rods (13) and two fans (15), the rotating shaft (12) is rotatably connected in the liquid storage cavity and is a plurality of the stirring rods (13) are respectively and symmetrically and fixedly connected to two sides of the rotating shaft (12), the servo motor (14) is fixedly connected to the top of the water storage tank (5), the driving shaft of the servo motor (14) is in transmission connection with one end of the rotating shaft (12), the fans (15) are symmetrically and fixedly connected to the top wall of the liquid storage cavity, and the air outlet of the fans (15) faces obliquely below.
5. The flue gas cooling device for industrial silicon smelting according to claim 3, wherein the filter layer (9) comprises a filter residue net (16), an activated carbon plate (17) and water filter cotton (18), the filter residue net (16), the activated carbon plate (17) and the water filter cotton (18) are sequentially and fixedly arranged from top to bottom, and the filter residue net (16), the activated carbon plate (17) and the water filter cotton (18) are all located below the atomizing nozzle (8).
6. The flue gas cooling device for industrial silicon smelting according to claim 3, wherein the outer surface of the heat radiating pipe (2) comprises an aluminum alloy shell, and the outer surface of the return pipe (10) is wrapped with a copper metal shell.
7. The flue gas cooling device for industrial silicon smelting according to claim 1, wherein an observation glass is arranged on the front side of the cooling box (3), and the observation glass is tempered glass.
8. The flue gas cooling device for industrial silicon smelting according to claim 4, wherein a control board is arranged at the front side of the cooling box (3), and the control board is electrically connected with the electromagnetic valve and the servo motor (14).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114577016A (en) * | 2022-02-25 | 2022-06-03 | 董小勇 | Cooling and filtering device for tail gas of wall-mounted boiler |
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2021
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114577016A (en) * | 2022-02-25 | 2022-06-03 | 董小勇 | Cooling and filtering device for tail gas of wall-mounted boiler |
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