CN216745505U - Cooling furnace waste heat reflux unit - Google Patents
Cooling furnace waste heat reflux unit Download PDFInfo
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- CN216745505U CN216745505U CN202220012251.1U CN202220012251U CN216745505U CN 216745505 U CN216745505 U CN 216745505U CN 202220012251 U CN202220012251 U CN 202220012251U CN 216745505 U CN216745505 U CN 216745505U
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Abstract
The utility model discloses a cooling furnace waste heat reflux device, which comprises a cooling furnace, a calcining furnace, a heat exchanger, an induced draft fan and a circulating pump, wherein the calcining furnace is arranged on one side of the cooling furnace, a bracket is arranged on the upper part of the calcining furnace, the heat exchanger is arranged on the bracket, an outer cover is arranged outside the cooling furnace, the cooling coil is arranged on the outer wall of the cooling furnace, the cooling coil is arranged close to the cooling furnace, the cooling liquid in the cooling coil absorbs the heat energy of gypsum in the cooling furnace and conveys the heated cooling liquid into a spiral heat exchange coil in the heat exchanger under the suction of the circulating pump, the heat is released in the spiral heat exchange coil to heat the surrounding air, then the high-temperature gas is conveyed to the calcining furnace again through the induced draft fan, the temperature in the calcining furnace is increased, and the waste heat can be refluxed and reused, compared with the prior art, the waste heat of the utility model can be reused, and the waste of resources can be reduced.
Description
Technical Field
The utility model relates to the technical field of desulfurized gypsum processing equipment, in particular to a cooling furnace waste heat reflux device.
Background
The desulfurized gypsum is an industrial byproduct generated by the reaction of limestone powder and sulfur dioxide in the flue gas desulfurization technology, the main component is calcium sulfate dihydrate, and is characterized by high purity, stable components, small granularity, powder shape, about 12-17% of running water, uniform particle size distribution, poor grading, large water consumption for thickening, a certain amount of calcium carbonate and more water-soluble salts, the desulfurized gypsum presents different colors from the aspect of appearance according to the difference of dust removal effects of burning coal and flue gas, generally, the desulfurized gypsum is generally gray yellow or gray white, the desulfurized gypsum with excellent quality is pure white, and the desulfurized gypsum is widely used in a plurality of application fields of buildings, building materials, industrial molds and artistic models, chemical industry, agriculture, food processing, medicine cosmetology and the like, and is an important industrial raw material.
In the prior art, after being calcined in the calcining furnace, the desulfurized gypsum needs to be conveyed to a cooling furnace through a hoist for cooling, and the heat absorbed by cooling is directly discharged into the outside air, so that the waste heat is not effectively utilized, and the resource waste is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a cooling furnace waste heat reflux device to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme:
a cooling furnace waste heat reflux device comprises a cooling furnace, a calcining furnace, a heat exchanger, an induced draft fan and a circulating pump, wherein the calcining furnace is arranged on one side of the cooling furnace, a support is arranged on the upper portion of the calcining furnace, the heat exchanger is installed on the support, an outer cover is arranged outside the cooling furnace, a cooling cavity which surrounds the periphery of the cooling furnace is arranged between the inner portion of the outer cover and the outer wall of the cooling furnace, a cooling coil is arranged in the cooling cavity and is tightly attached to the cooling furnace, the upper end of the cooling coil is connected with a cooling liquid discharge pipe, the other end of the cooling liquid discharge pipe is connected with the upper portion of the heat exchanger, the lower portion of the heat exchanger is connected with a cooling liquid inlet pipe, the other end of the cooling liquid inlet pipe is connected with the bottom port of the cooling coil in the cooling furnace, one end of the heat exchanger is connected with a blowing pipe, the other end of the blowing pipe is connected with the air inlet end of the calcining furnace, and the blowing pipe is provided with an induced draft fan.
As a further scheme of the utility model: the upper end of the cooling furnace is provided with a feed inlet, and the lower end of the cooling furnace is provided with a discharge outlet.
As a still further scheme of the utility model: the heat exchanger comprises a shell, a spiral heat exchange coil and an air guide cover, wherein the spiral heat exchange coil is arranged inside the shell, one end of the shell is connected with the air guide cover, the air guide cover is in a bell mouth shape, and the smaller end of the port of the air guide cover is connected with a blowing pipe.
As a still further scheme of the utility model: one end of the spiral heat exchange coil is connected with the cooling liquid discharge pipe, and the other end of the spiral heat exchange coil is connected with the cooling liquid inlet pipe.
As a still further scheme of the utility model: and a polyester heat-insulating sleeve wraps the cooling liquid discharge pipe.
As a still further scheme of the utility model: a lifting machine is arranged between the calcining furnace and the cooling furnace, the bottom feeding end of the lifting machine is connected with the discharging end of the calcining furnace, and the top discharging end of the lifting machine is connected with the upper feeding hole of the cooling furnace.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the cooling coil is arranged on the outer wall of the cooling furnace, the cooling liquid in the cooling coil absorbs the heat energy of gypsum in the cooling furnace and conveys the heated cooling liquid into the spiral heat exchange coil in the heat exchanger under the suction of the circulating pump, the heat is released in the spiral heat exchange coil to heat the surrounding air, and then the high-temperature gas is conveyed to the calcining furnace again through the induced draft fan, so that the temperature in the calcining furnace is increased, and the waste heat can be recycled.
Drawings
Fig. 1 is a schematic view of the overall structure of a cooling furnace waste heat reflux device.
Fig. 2 is a sectional view of a cooling furnace waste heat recycling device, and the cooling furnace in fig. 1 is structurally cut.
Fig. 3 is a structural sectional view of a cooling furnace waste heat reflux device and the heat exchanger in fig. 1.
1. Cooling the furnace; 2. a housing; 3. a calciner; 4. a support; 5. a heat exchanger; 501. a housing; 502. A spiral heat exchange coil; 503. a wind scooper; 6. an induced draft fan; 7. a blowpipe; 8. a cooling chamber; 9. a cooling coil; 10. a discharge outlet; 11. a coolant discharge pipe; 12. a cooling liquid inlet pipe; 13. a circulation pump; 14. A feed inlet; 15. a hoist; 16. polyester insulating sleeve.
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.
Referring to fig. 1 to 3, in the embodiment of the present invention, a cooling furnace waste heat reflux device includes a cooling furnace 1, a calciner 3, a heat exchanger 5, an induced draft fan 6 and a circulating pump 13, the calciner 3 is disposed on one side of the cooling furnace 1, a support 4 is disposed on the upper portion of the calciner 3, the heat exchanger 5 is mounted on the support 4, an outer cover 2 is disposed outside the cooling furnace 1, a cooling cavity 8 surrounding the cooling furnace 1 is disposed between the inner side of the outer cover 2 and the outer wall of the cooling furnace 1, a cooling coil 9 is disposed in the cooling cavity 8, the cooling coil 9 is disposed closely to the cooling furnace 1, the upper end of the cooling coil 9 is connected to a cooling liquid discharge pipe 11, the other end of the cooling liquid discharge pipe 11 is connected to the upper portion of the heat exchanger 5, the lower portion of the heat exchanger 5 is connected to a cooling liquid inlet pipe 12, the other end of the cooling liquid inlet pipe 12 is connected to the bottom end of the cooling coil 9 in the cooling furnace 1, one end of the heat exchanger 5 is connected to a blowing pipe 7, the other end of the blowpipe 7 is connected with the air inlet end of the calcining furnace 3, and the blowpipe 7 is provided with an induced draft fan 6.
The upper end of the cooling furnace 1 is provided with a feeding hole 14, and the lower end of the cooling furnace 1 is provided with a discharging hole 10.
The heat exchanger 5 comprises a shell 501, a spiral heat exchange coil 502 and an air guide cover 503, the spiral heat exchange coil 502 is arranged inside the shell 501, one end of the shell 501 is connected with the air guide cover 503, the air guide cover 503 is in a horn mouth shape, the smaller end of the port of the air guide cover 503 is connected with the blowpipe 7, and the air guide cover 503 can guide hot air in the heat exchanger 5, so that the hot air can smoothly enter the blowpipe 7 and flow back to the calcining furnace 3.
One end of the spiral heat exchange coil 502 is connected with the cooling liquid discharge pipe 11, the other end of the spiral heat exchange coil 502 is connected with the cooling liquid inlet pipe 12, and the cooling liquid slowly and spirally advances in the spiral heat exchange coil 502, so that the heat can be released in sufficient time.
The cooling liquid discharge pipe 11 is externally wrapped with a polyester heat insulation sleeve 16, and the polyester heat insulation sleeve 16 can insulate the cooling liquid discharge pipe 11 to reduce heat loss.
A lifting machine 15 is arranged between the calcining furnace 3 and the cooling furnace 1, the bottom feeding end of the lifting machine 15 is connected with the discharging end of the calcining furnace 3, the top discharging end of the lifting machine 15 is connected with the upper feeding hole 14 of the cooling furnace 1, and the lifting machine 15 can quickly feed gypsum calcined by the calcining furnace 3 into the cooling furnace 1 for cooling, so that the processing speed of the gypsum is accelerated.
The working principle of the utility model is as follows:
when the device is used, gypsum calcined by the calciner 3 is conveyed into the cooling furnace 1 through the hoister 15, heat of the gypsum in the cooling furnace 1 is absorbed through cooling liquid in the cooling coil pipe 9, the heated cooling liquid is conveyed into the spiral heat exchange coil pipe 502 through the cooling liquid discharge pipe 11 by the circulating pump 13, the cooling liquid releases heat in the spiral heat exchange coil pipe 502 to heat surrounding air, then hot air around the spiral heat exchange coil pipe 502 is blown into the calciner 3 through the blowing pipe 7 by the draught fan 6, the temperature of the calciner 3 is increased, waste heat can be recycled, the cooling liquid after heat release flows back into the cooling coil pipe 9 again through the cooling liquid inlet pipe 12 to absorb and release heat repeatedly, and therefore continuous recovery of the waste heat of the cooling furnace 1 can be achieved.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.
Claims (6)
1. The utility model provides a cooling furnace waste heat reflux unit, includes cooling furnace (1), forges burning furnace (3), heat exchanger (5), draught fan (6) and circulating pump (13), its characterized in that: a calcining furnace (3) is arranged on one side of the cooling furnace (1), a support (4) is arranged on the upper portion of the calcining furnace (3), a heat exchanger (5) is installed on the support (4), an outer cover (2) is arranged outside the cooling furnace (1), a cooling cavity (8) which is arranged around the cooling furnace (1) is arranged between the inner portion of the outer cover (2) and the outer wall of the cooling furnace (1), a cooling coil (9) is arranged in the cooling cavity (8), the cooling coil (9) is arranged in a manner of being tightly attached to the cooling furnace (1), a cooling liquid discharge pipe (11) is connected to the upper end of the cooling coil (9), the other end of the cooling liquid discharge pipe (11) is connected with the upper portion of the heat exchanger (5), a cooling liquid inlet pipe (12) is connected to the lower portion of the heat exchanger (5), and the other end of the cooling liquid inlet pipe (12) is connected with a bottom port of the cooling coil (9) in the cooling furnace (1), one end of the heat exchanger (5) is connected with a blowing pipe (7), the other end of the blowing pipe (7) is connected with the air inlet end of the calcining furnace (3), and an induced draft fan (6) is installed on the blowing pipe (7).
2. The waste heat recycling device of the cooling furnace as claimed in claim 1, wherein: the upper end of the cooling furnace (1) is provided with a feeding hole (14), and the lower end of the cooling furnace (1) is provided with a discharging hole (10).
3. The cooling furnace waste heat reflux device according to claim 1, characterized in that: the heat exchanger (5) comprises a shell (501), a spiral heat exchange coil (502) and an air guide cover (503), wherein the spiral heat exchange coil (502) is arranged inside the shell (501), the air guide cover (503) is connected to one end of the shell (501), the air guide cover (503) is in a horn mouth shape, and the smaller end of the air guide cover (503) is connected with the blowing pipe (7).
4. The waste heat recycling device of the cooling furnace as claimed in claim 3, wherein: one end of the spiral heat exchange coil (502) is connected with the cooling liquid discharge pipe (11), and the other end of the spiral heat exchange coil (502) is connected with the cooling liquid inlet pipe (12).
5. The waste heat recycling device of the cooling furnace as claimed in claim 1, wherein: and the cooling liquid discharge pipe (11) is externally wrapped with a polyester heat-insulating sleeve (16).
6. The waste heat recycling device of the cooling furnace as claimed in claim 1, wherein: a lifting machine (15) is arranged between the calcining furnace (3) and the cooling furnace (1), the bottom feeding end of the lifting machine (15) is connected with the discharging end of the calcining furnace (3), and the top discharging end of the lifting machine (15) is connected with the upper feeding hole (14) of the cooling furnace (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220012251.1U CN216745505U (en) | 2022-01-05 | 2022-01-05 | Cooling furnace waste heat reflux unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220012251.1U CN216745505U (en) | 2022-01-05 | 2022-01-05 | Cooling furnace waste heat reflux unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216745505U true CN216745505U (en) | 2022-06-14 |
Family
ID=81911792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220012251.1U Active CN216745505U (en) | 2022-01-05 | 2022-01-05 | Cooling furnace waste heat reflux unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216745505U (en) |
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2022
- 2022-01-05 CN CN202220012251.1U patent/CN216745505U/en active Active
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