CN211977558U - Tunnel cave cooling system - Google Patents
Tunnel cave cooling system Download PDFInfo
- Publication number
- CN211977558U CN211977558U CN202020498031.5U CN202020498031U CN211977558U CN 211977558 U CN211977558 U CN 211977558U CN 202020498031 U CN202020498031 U CN 202020498031U CN 211977558 U CN211977558 U CN 211977558U
- Authority
- CN
- China
- Prior art keywords
- fan
- air
- cooling
- section
- cooling section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 157
- 238000005245 sintering Methods 0.000 claims abstract description 8
- 238000010304 firing Methods 0.000 claims description 12
- 239000000428 dust Substances 0.000 claims description 8
- 239000002918 waste heat Substances 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 5
- 239000000047 product Substances 0.000 description 21
- 239000007789 gas Substances 0.000 description 8
- 238000002485 combustion reaction Methods 0.000 description 4
- 239000000112 cooling gas Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000011449 brick Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
Images
Landscapes
- Furnace Details (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model relates to a tunnel kiln cooling system, which comprises a cooling section, wherein the cooling section comprises a first cooling section arranged near a sintering section and a second cooling section arranged near the kiln tail, a first fan is arranged outside the second cooling section, and an air outlet of the first fan is communicated with the bottom end of the second cooling section through a pipeline; a second fan is arranged outside the second cooling section, an air inlet of the second fan is communicated with the top end of the second cooling section through a pipeline, and an air outlet of the second fan is communicated with the bottom end of the first cooling section through a pipeline; the outside third fan that still is provided with of first cooling zone, the air intake of third fan is linked together through the top of pipeline with first cooling zone, and the air outlet intercommunication of third fan has the guide duct, and the guide duct intercommunication has two wind-guiding branch pipes, and two wind-guiding branch pipes communicate with preheating section and burning section respectively. The utility model discloses not only can make the cooling process of cooling zone more steady, prevent that the goods from exploding and drawing the kiln time overlength, can also carry out recycle to the waste heat.
Description
Technical Field
The utility model belongs to the technical field of the technique of tunnel cave equipment and specifically relates to a tunnel cave cooling system is related to.
Background
The tunnel kiln is a continuous kiln, which is generally a long straight tunnel with fixed walls and vaults on both sides and at the top, and a kiln car running on a track laid at the bottom. The combustion equipment is arranged at two sides of the middle part of the tunnel kiln to form a fixed high-temperature burning zone; high-temperature flue gas generated by combustion flows towards the kiln head along the tunnel under the action of a chimney at the front end of the tunnel kiln or an induced draft fan, and simultaneously, products entering the kiln are gradually preheated, and the section forms a preheating zone of the tunnel kiln; blowing cold air or natural air into the tail of the tunnel kiln to cool the products in the kiln to a temperature at which the products can be taken out of the kiln, wherein the section forms a cooling zone of the tunnel kiln.
Chinese patent publication No. CN108253782A discloses a heat accumulating type ceramic tunnel kiln, comprising: a preheating section; a firing section; the cooling section is internally provided with a waste heat recovery device which is used for collecting heat emitted by the ceramic products and the kiln furniture to form hot air; and the waste heat transmission device is arranged between the waste heat recovery device and the preheating section and between the waste heat recovery device and the combustion air pipeline, so that the waste heat is transmitted to the preheating section and/or the combustion air pipeline through the waste heat transmission device.
When the refractory bricks are cooled, if the refractory bricks are cooled too fast in a cooling zone, the refractory bricks crack or even explode, the quality of the final product is influenced, the cooling is too slow, the firing time is prolonged, and the working efficiency is reduced; therefore, a cooling system for making the temperature reduction process more stable is required, and the regenerative ceramic tunnel kiln lacks such a cooling system.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a tunnel cave cooling system that makes cooling zone cooling process more steady to prior art exists.
The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a tunnel kiln cooling system, includes the cooling zone, the cooling zone is including being close to the first cooling zone that the section of burning set up and being close to the second cooling zone that the kiln tail set up, second cooling zone outside is provided with first fan, the air outlet of first fan pass through the pipeline with the bottom of second cooling zone is linked together, second cooling zone outside still is provided with the second fan, the air intake of second fan pass through the pipeline with the top of second cooling zone is linked together, the air outlet of second fan pass through the pipeline with the bottom of first cooling zone is linked together.
By adopting the technical scheme, the first fan leads natural wind or cold wind into the second cooling section from the bottom of the second cooling section close to the tail of the kiln through the pipeline, so that the upward flow of hot air heated by residual heat on products and a kiln car in the second cooling section can be accelerated, then the second fan extracts the air in the second cooling section from the top of the second cooling section, and the extracted air is led into the first cooling section from the bottom of the first cooling section through the pipeline; because the second cooling section is close to the kiln tail with low temperature and the first cooling section is close to the firing section with high temperature, the original air temperature in the second cooling section is lower than the original air temperature in the first cooling section, and because the second cooling section is introduced with cold air, the cold air is mixed into the hot air extracted from the second cooling section by the second fan, and the mixed air is introduced into the first cooling section by the second fan to cool the product, so that the product in the first cooling section cannot be burst due to over-fast cooling; compared with the traditional mode of introducing cold air from the kiln tail to cool the product, the scheme of introducing the cold air from the bottoms of the first cooling section and the second cooling section respectively to cool the product can enable the product to be cooled more quickly, reduce the kiln discharging time and improve the working efficiency; and the air that lets in first cooling zone is the cold and hot air mixture of follow second cooling zone top extraction, so the air temperature that lets in first cooling zone can not be low excessively, has avoided the goods cooling too fast and takes place to explode and split.
The present invention may be further configured in a preferred embodiment as: the bottom of the second cooling section is provided with a second air box, an air outlet of the first fan is communicated with the bottom of the second air box through a pipeline, the bottom of the first cooling section is provided with a first air box, an air outlet of the second fan is communicated with the bottom of the first air box through a pipeline, air deflectors are arranged at the tops of the first air box and the second air box, and the air deflectors incline towards the direction of the firing section.
By adopting the technical scheme, the air deflector is arranged, so that introduced cold air can flow towards the direction of the sintering section, and in the flowing process, the cold air is heated by residual heat on products and a kiln car and the temperature of the cold air rises, and finally the cold air can flow to the sintering section to become combustion-supporting gas, so that the waste heat is recycled.
The present invention may be further configured in a preferred embodiment as: the air conditioner comprises a first cooling section, a second cooling section and a heating section, wherein a first fan is arranged outside the first cooling section, an air inlet of the first fan is communicated with the top of the first cooling section through a pipeline, an air outlet of the first fan is communicated with an air guide pipe, one end, far away from the first fan, of the air guide pipe is communicated with two air guide branch pipes, and the two air guide branch pipes are respectively communicated with the tops of the preheating section and the firing section.
By adopting the technical scheme, the third fan extracts hot air gathered at the top of the first cooling section, so that the temperature of the first cooling section is reduced, the third fan conveys the extracted hot air into the air guide pipe, and the extracted hot air is respectively introduced into the firing section from the two air guide branch pipes to become combustion-supporting gas and is introduced into the preheating section to preheat a product to be fired; the temperature in the first cooling section is reduced, and the recycling of waste heat is realized.
The present invention may be further configured in a preferred embodiment as: and a first flow equalizing plate is arranged in a pipeline communicated between the air outlet of the first fan and the second air box and a pipeline communicated between the air outlet of the second fan and the first air box.
Through adopting above-mentioned technical scheme, the setting of first flow equalizing plate can make during cooling air is let in first cooling zone and second cooling zone more evenly, makes the temperature in first cooling zone and the second cooling zone more even.
The present invention may be further configured in a preferred embodiment as: the second cooling section is provided with a third air box at a position close to the top end, the top of the third air box is communicated with the air inlet of the second fan through a pipeline, the first cooling section is provided with a fourth air box at a position close to the top end, the top of the fourth air box is communicated with the air inlet of the third fan through a pipeline, and the bottoms of the third air box and the fourth air box are provided with second flow equalizing plates.
Through adopting above-mentioned technical scheme, the setting of second flow equalizing plate can be so that the hot-air of first cooling zone and the gathering of second cooling zone top can be taken away more evenly for the cooling of first cooling zone and second cooling zone is more even abundant.
The present invention may be further configured in a preferred embodiment as: and dust removing nets are arranged in the third air box and the fourth air box.
Through adopting above-mentioned technical scheme, when second fan and third fan bled from second cooling zone and first cooling zone, the dust removal net can be with the dust that blocks in the air, prevents that these dust from being discharged polluted air.
The present invention may be further configured in a preferred embodiment as: and a valve is also arranged on a pipeline communicated between the air outlet of the first fan and the second air box.
Through adopting above-mentioned technical scheme, set up the size that the whole cooling zone intake can be controlled to the valve to realize the control to the cooling zone temperature.
To sum up, the utility model discloses a following at least one useful technological effect:
1. through the arrangement of the first cooling section, the second cooling section, the first fan and the second fan, the effect of enabling the cooling process of the cooling section to be more stable can be achieved;
2. the first air box, the second air box and the air guide plate are arranged, so that the effect of guiding cold air introduced into the cooling section to the sintering section to be combustion-supporting gas can be achieved;
3. through the arrangement of the third fan, the air guide pipe and the air guide branch pipe, hot air in the cooling section can be conveyed to the firing section to become combustion-supporting gas and hot air in the preheating section to become preheated gas, so that the effect of recycling waste heat is realized.
Drawings
FIG. 1 is a schematic view of the overall structure of the cooling system of the tunnel kiln;
FIG. 2 is a schematic side view of the overall construction of the tunnel kiln cooling system;
fig. 3 is a schematic sectional view of the entire structure of the cooling system of the tunnel kiln.
In the figure, 1, preheating section; 2. a firing section; 3. a first cooling section; 31. a first windbox; 32. a fourth windbox; 4. a second cooling section; 41. a second windbox; 42. a third windbox; 5. a first fan; 51. a valve; 6. a second fan; 7. a third fan; 71. an air guide pipe; 72. an air guide branch pipe; 8. an air deflector; 9. a first flow equalizing plate; 91. a second flow equalizing plate; 10. a dust removal net.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 3, the tunnel kiln cooling system disclosed by the present invention comprises a cooling section, wherein the cooling section comprises a first cooling section 3 arranged near a firing section 2 and a second cooling section 4 arranged near a kiln tail; a second air box 41 is arranged at the bottom of the second cooling section 4, a first fan 5 is arranged outside the second cooling section 4, an air outlet of the first fan 5 is communicated with the bottom of the second air box 41 through a pipeline, and a valve 51 is arranged on the pipeline; a third air box 42 is also arranged in the second cooling section 4 close to the top end, a dust removal net 10 is arranged in the third air box 42, a second fan 6 is also arranged outside the second cooling section 4, and the top of the third air box 42 is communicated with an air inlet of the second fan 6 through a pipeline; the bottom of the first cooling section 3 is provided with a first air box 31, and an air outlet of the second fan 6 is communicated with the bottom of the first air box 31 through a pipeline.
Referring to fig. 2 and 3, the top of each of the first wind box 31 and the second wind box 41 is provided with a wind deflector 8, and the wind deflector 8 inclines towards the direction of the firing section 2; therefore, cooling air heated by residual heat on the products and the kiln car flows towards the burning section 2 and enters the burning section 2 to be combustion-supporting gas, and waste heat is recycled; a first flow equalizing plate 9 is arranged in a pipeline communicated between the air outlet of the first fan 5 and the second air box 41 and a pipeline communicated between the air outlet of the second fan 6 and the first air box 31, and a second flow equalizing plate 91 is arranged at the bottom of the third air box 42; this makes it possible to introduce the cooling air more uniformly into the first cooling stage 3 and the second cooling stage 4.
Referring to fig. 3, a fourth air box 32 is further arranged at a position close to the top end in the first cooling section 3, a dust removal net 10 is arranged in the fourth air box 32, a third fan 7 is arranged outside the first cooling section 3, the top of the fourth air box 32 is communicated with an air inlet of the third fan 7 through a pipeline, an air outlet of the third fan 7 is communicated with an air guide pipe 71, one end, far away from the third fan 7, of the air guide pipe 71 is communicated with two air guide branch pipes 72, and the two air guide branch pipes 72 are respectively communicated with the tops of the preheating section 1 and the sintering section 2; the third fan 7 can respectively introduce the hot air gathered at the top of the first cooling section 3 into the preheating section 1 and the burning section 2 through the air guide branch pipe 72, so that the waste heat is recycled; the bottom of the fourth windbox 32 is provided with a second flow equalizing plate 91, so that the hot air in the first cooling stage 3 can be more uniformly and sufficiently extracted.
The implementation principle of the embodiment is as follows: introducing cooling air from the bottom of a second cooling section 4 close to the tail of the kiln through a first fan 5, cooling the second cooling section 4 by the cooling air, accelerating the upward flow of hot air in the second cooling section 4, extracting air at the top of the second cooling section 4 by a second fan 6, introducing the air into a first cooling section 3 from the bottom of the first cooling section 3, collecting the hot air in the first cooling section 3 upwards, extracting the hot air collected at the top of the first cooling section 3 by a third fan 7, and respectively conveying the hot air into a combustion-supporting gas in a burning section 2 and preheating products to be burned in a preheating section 1 from two air guide branch pipes 72; compared with the traditional mode of introducing cold air from the kiln tail to cool the product, the scheme of introducing the cold air from the bottoms of the first cooling section 3 and the second cooling section 4 respectively to cool the product can cool the product more quickly, reduce the time of leaving the kiln and improve the working efficiency; the air introduced into the first cooling section 3 is a cold and hot air mixture extracted from the top of the second cooling section 4, so that the temperature of the air introduced into the first cooling section 3 is not too low, the phenomenon that the product is cracked due to too fast cooling is avoided, the cooling of the product in the cooling section after being sintered is more stable, and the processing quality is improved; after the cooling gas reaches the first cooling section 3, the cooling gas is heated by the products and the kiln car to increase the temperature, part of the heated cooling gas enters the firing section 2 to become combustion-supporting gas, and part of the heated cooling gas enters the preheating section 1 to preheat the products to be fired, so that the waste heat is recycled.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (7)
1. A tunnel kiln cooling system comprises a cooling section, and is characterized in that: the cooling section comprises a first cooling section (3) and a second cooling section (4), the first cooling section (3) is close to the sintering section (2), the second cooling section (4) is provided with a first fan (5) outside, an air outlet of the first fan (5) is communicated with the bottom end of the second cooling section (4) through a pipeline, a second fan (6) is further arranged outside the second cooling section (4), an air inlet of the second fan (6) is communicated with the top end of the second cooling section (4) through a pipeline, and an air outlet of the second fan (6) is communicated with the bottom end of the first cooling section (3) through a pipeline.
2. The tunnel kiln cooling system of claim 1, wherein: the bottom of the second cooling section (4) is provided with a second air box (41), the air outlet of the first fan (5) is communicated with the bottom of the second air box (41) through a pipeline, the bottom of the first cooling section (3) is provided with a first air box (31), the air outlet of the second fan (6) is communicated with the bottom of the first air box (31) through a pipeline, air deflectors (8) are arranged at the tops of the first air box (31) and the second air box (41), and the air deflectors (8) incline towards the direction of the firing section (2).
3. The tunnel kiln cooling system of claim 2, wherein: the preheating section (1) and the sintering section (2) are arranged in the kiln, a third fan (7) is arranged outside the first cooling section (3), an air inlet of the third fan (7) is communicated with the top of the first cooling section (3) through a pipeline, an air outlet of the third fan (7) is communicated with an air guide pipe (71), one end, far away from the third fan (7), of the air guide pipe (71) is communicated with two air guide branch pipes (72), and the two air guide branch pipes (72) are respectively communicated with the tops of the preheating section (1) and the sintering section (2).
4. The tunnel kiln cooling system of claim 3, wherein: and a first flow equalizing plate (9) is arranged in a pipeline communicated between the air outlet of the first fan (5) and the second air box (41) and in a pipeline communicated between the air outlet of the second fan (6) and the first air box (31).
5. The tunnel kiln cooling system of claim 4, wherein: the utility model discloses a fan, including first cooling section (4), second cooling section (4), the position department that is close to the top still is provided with third bellows (42) in the second cooling section (4), the top of third bellows (42) through the pipeline with the air intake of second fan (6) is linked together, the position department that is close to the top in first cooling section (3) still is provided with fourth bellows (32), the top of fourth bellows (32) through the pipeline with the air intake of third fan (7) is linked together, the bottom of third bellows (42) and fourth bellows (32) all is provided with second flow equalizing plate (91).
6. The tunnel kiln cooling system of claim 5, wherein: and dust removing nets (10) are arranged in the third air box (42) and the fourth air box (32).
7. The tunnel kiln cooling system of claim 6, wherein: and a valve (51) is also arranged on a pipeline communicated between the air outlet of the first fan (5) and the second air box (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020498031.5U CN211977558U (en) | 2020-04-08 | 2020-04-08 | Tunnel cave cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020498031.5U CN211977558U (en) | 2020-04-08 | 2020-04-08 | Tunnel cave cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211977558U true CN211977558U (en) | 2020-11-20 |
Family
ID=73383780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020498031.5U Expired - Fee Related CN211977558U (en) | 2020-04-08 | 2020-04-08 | Tunnel cave cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211977558U (en) |
-
2020
- 2020-04-08 CN CN202020498031.5U patent/CN211977558U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101624647B (en) | Pellet roasting production technology recycling residual heat and system thereof | |
| CN106017072A (en) | Energy-saving hot wind circulation tunnel kiln and waste heat recycling method of tunnel kiln | |
| CN106969638A (en) | Rotary hearth furnace fume afterheat gradient utilization system and application method | |
| CN207963507U (en) | A kind of coal base shaft furnace flue gas waste heat recovery system | |
| CN211771479U (en) | Chain grate-rotary kiln-circular cooler with reheating SCR (Selective catalytic reduction) ultralow emission | |
| CN201395570Y (en) | Clean vertical heat recovery coke oven | |
| CN2505478Y (en) | Heat recovering coke oven body | |
| CN210070552U (en) | Reinforced scrap steel preheating device for electric arc furnace | |
| CN212620048U (en) | Energy-saving efficient continuous red brick roasting production kiln | |
| CN110173976A (en) | A kind of electric arc furnaces reinforcing scrap preheater | |
| CN103017329A (en) | Hot-blast stove system and method for different-speed circulating fluidized bed | |
| CN211977558U (en) | Tunnel cave cooling system | |
| CN103062893B (en) | Pulverized-coal combustion hot water boiler | |
| CN107655331A (en) | A kind of environment-friendly type aluminium melting furnace and its method of smelting | |
| CN107228484A (en) | A kind of general hot-blast stove of multimedium fuel | |
| CN201637269U (en) | Return air energy-saving annular kiln for shale brick production | |
| CN203586770U (en) | Sintering machine with pre-cooling zone | |
| CN214693917U (en) | External combustion annular sleeve kiln system | |
| CN105753348B (en) | A kind of production technology of Indonesia's bituminous rock tailing particles nsp kiln | |
| CN101749950B (en) | Air return type energy saving annular kiln for producing shale brick and production method | |
| CN105112076B (en) | System and method for gas direct heating | |
| CN103601363B (en) | The method of the gas-fired cupola heat cascade utilization that a kind of rock wool produces | |
| CN209584012U (en) | A kind of limekiln in PVC Production Process | |
| CN107101219A (en) | A kind of circulation air path device of biomass boiler | |
| CN208815053U (en) | Scrap heating device and electric arc furnaces smoke processing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201120 |