CN209854070U - Temperature-adjustable segmented heat supply pyrolysis thermal device and pyrolysis system - Google Patents
Temperature-adjustable segmented heat supply pyrolysis thermal device and pyrolysis system Download PDFInfo
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- CN209854070U CN209854070U CN201920155361.1U CN201920155361U CN209854070U CN 209854070 U CN209854070 U CN 209854070U CN 201920155361 U CN201920155361 U CN 201920155361U CN 209854070 U CN209854070 U CN 209854070U
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Abstract
The utility model discloses a temperature-adjustable sectional heat supply pyrolysis heating device and a pyrolysis system, which comprise an inner cylinder (2) and an outer cylinder (3), and are characterized by also comprising a flue gas input main pipe (4), wherein the outer cylinder is evenly provided with N independent input ports at intervals and is connected with a sub flue gas input pipe (5), and N is more than 2 and is provided with a common tail gas discharge pipe (8); the tail gas discharge pipe (8) is respectively connected with a tail gas pipe (11) and a tail gas discharge pipe (12); the high-temperature flue gas input pipe (10) is connected with the tail gas pipe (11) firstly for gas mixing and then is connected with the flue gas input main pipe (4); the tail gas pipe and the high-temperature flue gas input pipe are respectively provided with an electric control valve. Through evenly setting up the rotary kiln into the multistage, every section sets up a high temperature flue gas entry alone, realizes that the temperature of the heat source high temperature flue gas of the entry of every section is the same basically, and then realizes that the pyrolysis temperature distribution in the rotary kiln is more even for satisfy the pyrolysis application scene to the even requirement of whole process temperature.
Description
Technical Field
The utility model relates to a solid waste handles technical field, and more specifically the utility model relates to a but temperature regulation segmentation heat supply pyrolysis heating power device and pyrolysis system that says so.
Background
At present, the domestic method for industrially pyrolyzing solid wastes mainly comprises the thermal cracking of a vertical carbonization furnace, and the technical requirement is that the material granularity is larger and the applicability is poor; the vertical carbonization furnace is heated from raw coal to the condition that the output of tar, coal gas and semicoke is more than 24 hours and the time is too long; the single vertical carbonization furnace has low processing capacity, low tar yield and large floor area for large-scale production; the generated pyrolysis gas contains a large amount of air, so that the defects of low heat value and the like of the pyrolysis gas are caused.
The external heating type indirect heating rotary kiln moves the material along the inclination angle through the integral rotation of the kiln body, the material is heated by the flue gas outside the inner barrel, the generated pyrolysis gas is cleaner, and the pyrolysis gas with higher heat value can be fully utilized. The heat exchange efficiency can be improved by adopting counter-flow type delay heat exchange, the on-way flue gas can continuously and indirectly exchange heat with the material, and the temperature of the discharged flue gas can be greatly reduced. Because the rotary kiln body is generally longer, the existing equipment generally adopts a structure of a single heat source inlet, so that the temperature of the rotary kiln body is inevitably different from the inlet, the temperature distribution in the pyrolysis furnace is possibly uneven, the pyrolysis of articles at different positions is possibly different, and the overall pyrolysis effect is influenced.
SUMMERY OF THE UTILITY MODEL
To overcome the defects, the utility model aims to solve the problem of uneven temperature distribution in the rotary kiln.
In order to achieve the purpose, the utility model provides a temperature-adjustable sectional heating pyrolysis heating power device, which comprises an inner cylinder 2 and an outer cylinder 3, and is characterized by also comprising a flue gas input main pipe 4, wherein the outer cylinder is evenly provided with N independent input ports at intervals and is connected with a sub flue gas input pipe 5, and N is more than 2 and is provided with a common tail gas discharge pipe 8; the tail gas discharge pipe 8 is respectively connected with a tail gas pipe 11 and a tail gas discharge pipe 12; the high-temperature flue gas input pipe 10 is connected with the tail gas pipe 11 for gas mixing and then is connected with the flue gas input main pipe 4; and the high-temperature flue gas input pipe 10 and the tail gas pipe 11 are respectively provided with an electric control valve.
The temperature-adjustable sectional heating pyrolysis thermal device is characterized by further comprising a burner 7, wherein an input port of the burner 7 is connected with the rotary kiln through a pyrolysis gas pipeline 6; the high-temperature flue gas outlet of the combustor 7 is connected with the flue gas input main pipe 4 through a high-temperature flue gas input pipe 10; an electric control valve 9 is arranged on the high-temperature flue gas input pipe 10.
A pyrolysis system is characterized by comprising a temperature-adjustable segmented heat supply pyrolysis thermodynamic device and a flue gas input main pipe 4, wherein N independent input ports are uniformly arranged in an outer cylinder at intervals and are connected with a sub-flue gas input pipe 5, N is more than 2, and a common tail gas discharge pipe 8 is arranged; the tail gas discharge pipe 8 is respectively connected with a tail gas pipe 11 and a tail gas discharge pipe 12; the high-temperature flue gas input pipe 10 is connected with the tail gas pipe 11 for gas mixing and then is connected with the flue gas input main pipe 4; and the high-temperature flue gas input pipe 10 and the tail gas pipe 11 are respectively provided with an electric control valve.
The pyrolysis system is characterized by further comprising a burner 7, wherein an input port of the burner 7 is connected with the rotary kiln through a pyrolysis gas pipeline 6; the high-temperature flue gas outlet of the combustor 7 is connected with the flue gas input main pipe 4 through a high-temperature flue gas input pipe 10; an electric control valve 9 is arranged on the high-temperature flue gas input pipe 10.
The pyrolysis system is characterized in that the pyrolysis gas pipeline 6 is also provided with a high-temperature filter.
The pyrolysis system is characterized by further comprising a tail gas treatment subsystem, wherein the public tail gas discharge pipe 8 is connected with the tail gas treatment subsystem through a tail gas discharge pipe 12 and is discharged after harmless treatment.
The pyrolysis system is characterized by further comprising a waste heat utilization subsystem, wherein a high-temperature flue gas outlet of the combustor 7 is further connected with the waste heat utilization subsystem, and redundant high-temperature flue gas is output to the waste heat utilization subsystem for recycling.
The pyrolysis system is characterized by further comprising a waste heat utilization subsystem, wherein a high-temperature flue gas outlet of the combustor 7 is further connected with the waste heat utilization subsystem, and redundant high-temperature flue gas is output to the waste heat utilization subsystem for recycling.
The utility model discloses beneficial effect: through evenly setting up the rotary kiln into the multistage, every section sets up a high temperature flue gas entry alone, realizes that the temperature of the heat source high temperature flue gas of the entry of every section is the same basically, and then realizes that the pyrolysis temperature distribution in the rotary kiln is more even for satisfy the pyrolysis application scene to the even requirement of whole process temperature.
Drawings
FIG. 1 is a schematic diagram of the piping connections of a temperature adjustable staged thermal pyrolysis thermal plant.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in 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.
FIG. 1 is a schematic diagram of pipeline connection of a temperature-adjustable segmented heat supply pyrolysis thermal device, wherein a rotary kiln comprises an inner cylinder 2, an outer cylinder 3 and a flue gas input main pipe 4, the outer cylinder is uniformly provided with N independent input ports at intervals and is connected with a sub flue gas input pipe 5, N is more than 2, and a common tail gas discharge pipe 8 is arranged; the tail gas discharge pipe 8 is respectively connected with a tail gas pipe 11 and a tail gas discharge pipe 12; the high-temperature flue gas input pipe 10 is connected with the tail gas pipe 11 for gas mixing and then is connected with the flue gas input main pipe 4; and the tail gas pipes 11 are respectively provided with an electric control valve. The rotary kiln is characterized by further comprising a burner 7, wherein an input port of the burner 7 is connected with the rotary kiln through a pyrolysis gas pipeline 6; the high-temperature flue gas outlet of the combustor 7 is connected with the flue gas input main pipe 4 through a high-temperature flue gas input pipe 10; an electric control valve 9 is arranged on the high-temperature flue gas input pipe 10. The flow of the low-temperature flue gas is controlled by controlling the electric control valve on the tail gas pipe 11, and then the mixing proportion of the low-temperature flue gas and the high-temperature flue gas is controlled, so that the temperature of the heat source gas input into the rotary kiln is controlled.
The input port of the burner 7 is connected with the rotary kiln through a pyrolysis gas pipeline 6; the high-temperature flue gas outlet of the combustor 7 is connected with the flue gas input main pipe 4 through a high-temperature flue gas input pipe 10. Pyrolysis gas generated by pyrolysis of the rotary kiln is input into a combustor to be combusted to generate high-temperature flue gas, and the generated high-temperature flue gas is input into the rotary kiln to be used as a heat source for pyrolysis. The rotary kiln generally works by inputting materials into a pyrolysis channel from a feeding port 1, gradually transferring the materials to a kiln tail through an internal transmission device and discharging the materials, and pyrolyzing the materials in the rotary kiln in the whole process from a kiln head to the kiln tail, wherein the temperatures of different positions are consistent, so that the materials are uniformly pyrolyzed.
The pyrolysis system also comprises a tail gas treatment subsystem, and the tail gas discharge pipe 8 is connected with the tail gas treatment subsystem through a tail gas discharge pipe 12 and is discharged after harmless treatment. The tail gas purification device comprises an SNCR denitration device, a quench tower, an activated carbon adsorption filter, a washing tower and/or a flue gas reheater. Under the effect of waste incineration tail gas purification device, the flue gas discharged from the pyrolysis furnace is subjected to dust removal, dioxin removal, desulfurization and denitration, and white elimination, and then is discharged from a chimney through a pressurizing fan.
The pyrolysis system further comprises a waste heat utilization subsystem, a high-temperature flue gas outlet of the combustor 7 is further connected with the waste heat utilization subsystem, and a branch can be added to the high-temperature flue gas input pipe 10 to output redundant high-temperature flue gas to the waste heat utilization subsystem for recycling. The waste heat utilization subsystem can adopt waste heat recovery equipment such as a waste heat boiler and the like, and the waste heat boiler and the mechanical Rankine cycle waste heat power generation equipment are taken as examples for explanation; and (4) sending redundant high-temperature flue gas into a waste heat boiler, wherein a steam outlet of the waste heat boiler is connected with the mechanical Rankine cycle waste heat power generation equipment. The steam outlet of the waste heat boiler is connected with the heat exchanger of the organic Rankine cycle waste heat power generation equipment, the heat exchanger is connected with working media of the organic Rankine cycle waste heat power generation equipment, high-temperature flue gas generates high-temperature steam through water supply of the heating waste heat boiler, the high-temperature steam is sent into the organic Rankine cycle waste heat power generation equipment, indirect heat exchange is carried out on ORC organic matters through the heat exchanger inside the organic Rankine cycle waste heat power generation equipment, the heated ORC organic matters are generated through the power generator after passing through the expansion machine, and redundant energy is converted into electric energy. And a tail gas discharge port of the waste heat boiler also needs to be input into a tail gas treatment subsystem for harmless treatment.
The above disclosure is only an embodiment of the present invention, and certainly, the scope of the present invention should not be limited thereto, and all or part of the process of implementing the above embodiment may be understood by those skilled in the art, and the equivalent changes made according to the claims of the present invention may still fall within the scope covered by the present invention.
Claims (7)
1. A temperature-adjustable sectional heat supply pyrolysis thermodynamic device comprises an inner cylinder (2) and an outer cylinder (3), and is characterized by further comprising a flue gas input main pipe (4), wherein N independent input ports are uniformly arranged on the outer cylinder at intervals and are connected with a sub-flue gas input pipe (5), N is more than 2, and a common tail gas discharge pipe (8) is arranged; the tail gas discharge pipe (8) is respectively connected with a tail gas pipe (11) and a tail gas discharge pipe (12); the high-temperature flue gas input pipe (10) is connected with the tail gas pipe (11) firstly for gas mixing and then is connected with the flue gas input main pipe (4); and the high-temperature flue gas input pipe (10) and the tail gas pipe (11) are respectively provided with an electric control valve.
2. A temperature adjustable sectional heating pyrolysis thermal device according to claim 1, further comprising a burner (7), wherein an input port of the burner (7) is connected with the rotary kiln through a pyrolysis gas pipe (6); a high-temperature flue gas outlet of the combustor (7) is connected with a flue gas input main pipe (4) through a high-temperature flue gas input pipe (10); an electric control valve (9) is arranged on the high-temperature flue gas input pipe (10).
3. A pyrolysis system is characterized by comprising a temperature-adjustable segmented heat supply pyrolysis thermodynamic device, a flue gas input main pipe (4), an outer cylinder, N independent input ports, N2 and a common tail gas discharge pipe (8), wherein the N independent input ports are uniformly arranged at intervals and are connected with a sub-flue gas input pipe (5); the tail gas discharge pipe (8) is respectively connected with a tail gas pipe (11) and a tail gas discharge pipe (12); the high-temperature flue gas input pipe (10) is connected with the tail gas pipe (11) firstly for gas mixing and then is connected with the flue gas input main pipe (4); and the high-temperature flue gas input pipe (10) and the tail gas pipe (11) are respectively provided with an electric control valve.
4. A pyrolysis system according to claim 3, further comprising a burner (7), an input of the burner (7) being connected to the rotary kiln via a pyrolysis gas duct (6); a high-temperature flue gas outlet of the combustor (7) is connected with a flue gas input main pipe (4) through a high-temperature flue gas input pipe (10); an electric control valve (9) is arranged on the high-temperature flue gas input pipe (10).
5. A pyrolysis system according to claim 4, characterized in that the pyrolysis gas duct (6) is also provided with a high temperature filter.
6. A pyrolysis system according to claim 4, further comprising a tail gas treatment subsystem, wherein the common tail gas discharge pipe (8) is connected with the tail gas treatment subsystem through a tail gas discharge pipe (12) and is discharged after harmless treatment.
7. The pyrolysis system according to claim 4, further comprising a waste heat utilization subsystem, wherein the high-temperature flue gas outlet of the burner (7) is further connected with the waste heat utilization subsystem, and the surplus high-temperature flue gas is output to the waste heat utilization subsystem for recycling.
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| CN201920155361.1U CN209854070U (en) | 2019-01-29 | 2019-01-29 | Temperature-adjustable segmented heat supply pyrolysis thermal device and pyrolysis system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112375900A (en) * | 2020-11-12 | 2021-02-19 | 广东天源环境科技有限公司 | High-arsenic metal ore powder arsenic removal equipment and method |
| CN113457293A (en) * | 2020-11-12 | 2021-10-01 | 广东天源环境科技有限公司 | Arsenic-containing gas treatment device and high-arsenic metal mineral powder arsenic removal equipment |
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2019
- 2019-01-29 CN CN201920155361.1U patent/CN209854070U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112375900A (en) * | 2020-11-12 | 2021-02-19 | 广东天源环境科技有限公司 | High-arsenic metal ore powder arsenic removal equipment and method |
| CN113457293A (en) * | 2020-11-12 | 2021-10-01 | 广东天源环境科技有限公司 | Arsenic-containing gas treatment device and high-arsenic metal mineral powder arsenic removal equipment |
| CN113564346A (en) * | 2020-11-12 | 2021-10-29 | 广东天源环境科技有限公司 | High-arsenic metal mineral powder dearsenification equipment and method with gradually-distributed flue gas inlets |
| CN113457293B (en) * | 2020-11-12 | 2022-08-12 | 广东天源环境科技有限公司 | Arsenic-containing gas treatment device and high-arsenic metal mineral powder arsenic removal equipment |
| CN113564346B (en) * | 2020-11-12 | 2022-09-09 | 广东天源环境科技有限公司 | High-arsenic metal mineral powder dearsenification equipment and method with gradually-distributed flue gas inlets |
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Effective date of registration: 20211119 Address after: 518048 2906, building C, Huangdu Plaza, No. 3008, Yitian Road, Huanggang community, Futian street, Futian District, Shenzhen, Guangdong Patentee after: Shenzhen Zhongyuan Environmental Technology Co.,Ltd. Address before: 518052 unit 03, 7th floor, building 1, Yongxin Times Square, 4078 Dongbin Road, Nanshan street, Nanshan District, Shenzhen City, Guangdong Province Patentee before: GUANGDONG TIANYUAN ENVIRONMENTAL TECHNOLOGY Co.,Ltd. |
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