CN210952389U - Roller kiln flue gas waste heat recovery device - Google Patents
Roller kiln flue gas waste heat recovery device Download PDFInfo
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- CN210952389U CN210952389U CN201921749721.7U CN201921749721U CN210952389U CN 210952389 U CN210952389 U CN 210952389U CN 201921749721 U CN201921749721 U CN 201921749721U CN 210952389 U CN210952389 U CN 210952389U
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- kiln
- flue gas
- air guide
- waste heat
- wind scooper
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
The utility model discloses a roller kiln flue gas waste heat recovery device, including the inside hollow kiln body, gas transmission pipe and fix the recovery box in kiln body top, the internal bottom of kiln is provided with the combustor, the combustor top is provided with the fire-resistant roller that a plurality of horizontal arrangements were arranged, retrieve the inside wind scooper that is provided with of box, the wind scooper top is stretched out and is retrieved the box top surface, it is internal that the kiln is stretched into to the wind scooper bottom, wind scooper one side is provided with the air guide machine, gas transmission pipe symmetrical installation is on the lateral wall of retrieving the box. Has the advantages that: drive gaseous circulation through the air guide machine for outside gas and high temperature flue gas flow back to the furnace body again through the gas transmission pipe after wind scooper internal mixing, thereby promote oxygen content and air temperature in the kiln, shorten heat time, promote the machining efficiency of roller kilns and the utilization ratio of flue gas waste heat, the practicality is strong.
Description
Technical Field
The utility model relates to a refractory material production facility technical field, concretely relates to roller kiln flue gas waste heat recovery device.
Background
In the manufacturing process of refractory materials, a roller kiln is often adopted for material thermal forming treatment, and in the production process of the existing roller kiln, compressed air is generally adopted to burn and heat materials such as heavy oil, diesel oil and kerosene, so that the utilization of heat energy is insufficient during combustion, the energy consumption is large, and certain pollution gas can be generated.
The existing flue gas waste heat recovery device mostly adopts heat exchange type treatment, the waste heat of flue gas heats up and heats the water flow inside the heat exchanger, and the heat energy is recovered by leading the flue gas into places such as a staff dormitory through a pipeline, a large amount of pipelines are needed to be erected from a factory in the processing mode to lead the water flow out, the use cost is high, the high-temperature flue gas cannot be utilized to assist material production, and the practicability is not enough.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a roller kiln flue gas waste heat recovery device just in order to solve above-mentioned problem to utilize flue gas high temperature to heat rivers among the solution prior art, use cost is high, and can't assist the material production, the not enough technical problem of practicality. The utility model provides an among a great deal of technical scheme preferred technical scheme passes through the air guide machine and drives gaseous circulation for outside gas and high temperature flue gas flow back to the furnace body again through the gas transmission pipe in the inside back that mixes of wind scooper, thereby contain oxygen content and air temperature in the promotion kiln, shorten heating time, promote the machining efficiency of roller kilns and the utilization ratio of flue gas waste heat, technical effect such as practicality is strong, sees the explanation below in detail.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a pair of roller kiln flue gas waste heat recovery device, include the inside hollow kiln body, gas transmission pipe and fix the recovery box in kiln body top, the bottom is provided with the combustor in the kiln body, the combustor top is provided with the fire-resistant roller that a plurality of horizontal arrangements were arranged, retrieve the inside wind scooper that is provided with of box, the wind scooper top stretches out recovery box top surface, the wind scooper bottom is stretched into in the kiln body, wind scooper one side is provided with the air guide machine, gas transmission pipe symmetry is installed on the lateral wall of retrieving the box, and one end is connected with air guide machine air-out end, the other end of gas transmission pipe runs through kiln external wall, and stretches into the bottom in the kiln body.
Preferably, a T-shaped three-way valve is arranged inside the air guide cover, and three ports of the T-shaped three-way valve are respectively communicated with the top end of the air guide cover, the bottom end of the air guide cover and the air inlet end of the air guide machine.
Preferably, an insulating layer is arranged inside the recovery box body.
Preferably, the bottom of the kiln body is provided with a support frame.
Preferably, one end of the air guide cover extending out of the top surface of the recovery box body is provided with a dust screen.
Preferably, the bottom end of the air guide cover extending into the kiln body is provided with a filter screen.
Has the advantages that:
1. the air guide machine drives the air to circulate, so that external air and high-temperature flue gas are mixed in the air guide cover and then flow back into the furnace body again through the air transmission pipe, thereby improving the oxygen content and air temperature in the roller kiln, shortening the heating time, improving the processing efficiency of the roller kiln and the utilization rate of flue gas waste heat, and having strong practicability;
2. the air content in the gas reintroduced into the kiln can be controlled through the T-shaped three-way valve, so that the temperature and the oxygen content of the backflow gas are controlled, the temperature in the kiln is convenient to adjust, and the processing is carried out by matching with different types of refractory materials.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a main structure view of the present invention;
fig. 2 is a top view of the present invention;
fig. 3 is a left side view of the present invention;
fig. 4 is an internal structural view of the present invention;
fig. 5 is an internal structure view of the recovery box of the present invention.
The reference numerals are explained below:
1. a gas delivery pipe; 2. a recovery box body; 3. a kiln body; 4. a support frame; 5. a dust screen; 6. a burner; 7. a refractory roll; 8. a wind scooper; 9. a T-shaped three-way valve; 10. a wind guide fan; 11. filtering with a screen; 12. and (7) an insulating layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-5, the utility model provides a roller kiln flue gas waste heat recovery device, which comprises a hollow kiln body 3, a gas transmission pipe 1 and a recovery box body 2 fixed above the kiln body 3, a burner 6 is arranged at the bottom in the kiln body 3, a plurality of fire-resistant rollers 7 arranged horizontally are arranged above the burner 6, a wind scooper 8 is arranged in the recovery box body 2, two ends of the wind scooper 8 are respectively communicated with the kiln body 3 and the recovery box body 2, the top end of the wind scooper 8 extends out of the top surface of the recovery box body 2, the bottom end of the wind scooper 8 extends into the kiln body 3, a dust screen 5 is arranged at one end of the wind scooper 8 extending out of the top surface of the recovery box body 2, the dust screen 5 is fixedly installed at the top end of the recovery box body 2 through bolts, thus, the arrangement can filter impurities in the outside gas through the dust screen 5, and, the bottom end of the wind scooper 8 extending into the kiln body 3 is provided with a filter screen 11, the filter screen 11 is fixed at the bottom end of the wind scooper 8 through a bolt, the filter screen 11 is made of an activated carbon material added with a silica gel absorbent inside, nitrogen monoxide in waste gas can be catalytically oxidized into nitrogen dioxide, the pollution of smoke can be reduced, the environmental protection effect during combustion is improved, one side of the wind scooper 8 is provided with a wind guide machine 10, the wind guide machine 10 adopts a high temperature resistant fan, the specific model is CX-5, gas transmission pipes 1 are symmetrically arranged on the side wall of the recovery box body 2, one end of each gas transmission pipe is connected with the air outlet end of the wind guide machine 10, the other end of each gas transmission pipe 1 penetrates through the outer wall of the kiln body 3 and extends into the inner bottom of the kiln body 3, the opening at one end extending into the inner bottom of the kiln body 3 is close to the nozzle of the, the flue gas that produces after the burning can rise to kiln body 3 inside top, this moment operating condition's the work of air guide machine 10 can be with the inside flue gas suction wind scooper 8 of kiln body 3, mix in wind scooper 8 with the outside air that gets into the inside of wind scooper 8 from retrieving 2 tops of box, the conveying is inside gas transmission pipe 1 after mixing, the guiding flow through gas transmission pipe 1 leads to kiln body 3 bottom again, can promote the inside oxygen content of kiln body 3 like this, and can preheat the outside air through original flue gas temperature in the mixing process simultaneously, make the gas reflux after the mixing convey around combustor 6, promote gaseous combustion efficiency, thereby promote kiln body 3 inside temperature fast, shorten heating time, make full use of the waste heat of high temperature flue gas.
As an optional implementation manner, a T-shaped three-way valve 9 is arranged inside the wind scooper 8, three ports of the T-shaped three-way valve 9 are respectively communicated with the top end of the wind scooper 8, the bottom end of the wind scooper 8 and the air inlet end of the wind guide machine 10, so that when the wind scooper is used, the mixing ratio of external air and the internal flue gas of the kiln body 3 can be controlled, the oxygen content and the temperature of the mixed gas are ensured, the processing requirements of different refractory materials are matched, the specific structure and the working principle of the T-shaped three-way valve 9 are the prior art, and details are not described herein.
The heat-insulating layer 12 is arranged inside the recovery box body 2, the heat-insulating layer 12 is made of aluminum silicate materials, and the heat resistance of the heat-insulating layer 12 can be ensured, so that the loss of the temperature of the flue gas is avoided, and the utilization rate of the heat energy of the flue gas is improved.
The bottom of the kiln body 3 is provided with a support frame 4, the support frame is made of 2CR25NI20 stainless steel materials, the heat resistance is high, the kiln body 3 can be supported and fixed, and the stability of the kiln body 3 in use is improved.
By adopting the structure, when the roller kiln works, the combustor 6 works to heat the temperature inside the kiln body 3, the density of the smoke generated by heating is reduced after the smoke expands due to heating and can be gradually gathered to the top of the kiln body 3, at the moment, the air guide machine 10 inside the recovery box body 2 works to suck the high-temperature smoke inside the kiln body 3 into the air guide cover 8, meanwhile, the external air enters the air guide cover 8 after being filtered by the dust screen 5 at the top end of the recovery box body 2, so that the high-temperature smoke is mixed with the external air, the high-temperature smoke can heat the external air in the mixing process to achieve the preheating process, meanwhile, the oxygen content in the backflow gas can be improved, then the backflow gas is guided into the gas transmission pipe 1 by the guide fan, and flows back to the bottom of the kiln body 3 again after being transmitted by the gas transmission pipe 1, the smoke after backflow has higher temperature and sufficient oxygen content, the combustion efficiency of the combustor, shorten heating time to promote the machining efficiency of roller kilns and the utilization ratio of flue gas waste heat, promoted the practicality of device, when producing different refractory material, operating personnel can adjust T type three-way valve 9's direction of rotation, thereby control the mixing proportion of the inside flue gas of outside gas and the kiln body 3, thereby adjust gaseous oxygen content and the temperature after mixing, in order to satisfy different refractory material's production and processing needs.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a roller kiln flue gas waste heat recovery device, includes the inside hollow kiln body (3), gas transmission pipe (1) and fixes recovery box (2) in kiln body (3) top, its characterized in that: the kiln comprises a kiln body (3), wherein a combustor (6) is arranged at the bottom in the kiln body (3), a plurality of fire-resistant rollers (7) which are horizontally arranged are arranged above the combustor (6), an air guide cover (8) is arranged inside the recovery box body (2), the top end of the air guide cover (8) extends out of the top surface of the recovery box body (2), the bottom end of the air guide cover (8) extends into the kiln body (3), a fan (10) is arranged on one side of the air guide cover (8), gas transmission pipes (1) are symmetrically arranged on the side wall of the recovery box body (2), one end of each gas transmission pipe is connected with the air outlet end of the fan (10), and the other end of each gas transmission pipe (1) penetrates through the outer wall of the kiln body (3) and extends into the bottom in.
2. The roller kiln flue gas waste heat recovery device of claim 1, characterized in that: a T-shaped three-way valve (9) is arranged inside the air guide cover (8), and three ports of the T-shaped three-way valve (9) are respectively communicated with the top end of the air guide cover (8), the bottom end of the air guide cover (8) and the air inlet end of the air guide machine (10).
3. The roller kiln flue gas waste heat recovery device of claim 1, characterized in that: and a heat preservation layer (12) is arranged inside the recovery box body (2).
4. The roller kiln flue gas waste heat recovery device of claim 1, characterized in that: and a support frame (4) is arranged at the bottom of the kiln body (3).
5. The roller kiln flue gas waste heat recovery device of claim 1, characterized in that: and a dust screen (5) is arranged at one end of the wind scooper (8) extending out of the top surface of the recovery box body (2).
6. The roller kiln flue gas waste heat recovery device of claim 1, characterized in that: the bottom end of the wind scooper (8) extending into the kiln body (3) is provided with a filter screen (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921749721.7U CN210952389U (en) | 2019-10-18 | 2019-10-18 | Roller kiln flue gas waste heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921749721.7U CN210952389U (en) | 2019-10-18 | 2019-10-18 | Roller kiln flue gas waste heat recovery device |
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| CN210952389U true CN210952389U (en) | 2020-07-07 |
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| CN201921749721.7U Active CN210952389U (en) | 2019-10-18 | 2019-10-18 | Roller kiln flue gas waste heat recovery device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113280632A (en) * | 2021-05-31 | 2021-08-20 | 福建省德化新凯丰陶瓷有限公司 | Energy-saving type technical ceramic firing kiln and firing method thereof |
| CN115342646A (en) * | 2022-06-29 | 2022-11-15 | 佛山市天禄智能装备科技有限公司 | Roller kiln and waste gas treatment system thereof |
| CN115770465A (en) * | 2022-12-22 | 2023-03-10 | 南京华电节能环保股份有限公司 | Flue gas purification type waste heat recoverer |
-
2019
- 2019-10-18 CN CN201921749721.7U patent/CN210952389U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113280632A (en) * | 2021-05-31 | 2021-08-20 | 福建省德化新凯丰陶瓷有限公司 | Energy-saving type technical ceramic firing kiln and firing method thereof |
| CN115342646A (en) * | 2022-06-29 | 2022-11-15 | 佛山市天禄智能装备科技有限公司 | Roller kiln and waste gas treatment system thereof |
| CN115342646B (en) * | 2022-06-29 | 2023-10-31 | 佛山市天禄智能装备科技有限公司 | Waste gas treatment system of roller kiln and roller kiln |
| CN115770465A (en) * | 2022-12-22 | 2023-03-10 | 南京华电节能环保股份有限公司 | Flue gas purification type waste heat recoverer |
| CN115770465B (en) * | 2022-12-22 | 2023-07-18 | 南京华电节能环保股份有限公司 | Flue gas purification type waste heat recoverer |
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