CN211665000U - Composite heating type moving bed pyrolysis reaction device for coal with wide particle size distribution, parallel groups thereof, series groups thereof and series combination of parallel groups - Google Patents
Composite heating type moving bed pyrolysis reaction device for coal with wide particle size distribution, parallel groups thereof, series groups thereof and series combination of parallel groups Download PDFInfo
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- CN211665000U CN211665000U CN201921673312.3U CN201921673312U CN211665000U CN 211665000 U CN211665000 U CN 211665000U CN 201921673312 U CN201921673312 U CN 201921673312U CN 211665000 U CN211665000 U CN 211665000U
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Abstract
The utility model discloses wide particle size distribution coal's compound heating formula moving bed pyrolysis reaction device and parallel group and series group and parallel group series combination thereof contains charge door, burning heating chamber, semicoke export and internals moving bed pyrolysis oven, is provided with multistage internals in the internals moving bed pyrolysis oven, is formed with the passageway that solid particle moved from the top down, the coal particle gets into the passageway that each grade of internals formed from the charge door and moves and discharges downwards, each grade of internals is the structure that has the inner chamber, it is connected with the circulating medium connecting pipe between each grade; circulating medium enters the uppermost layer inner member from the circulating medium inlet, enters the inner cavity of the next-stage inner member step by step through the circulating medium connecting pipe and is discharged through the circulating medium outlet; the high-temperature medium in the inner member transfers heat to the coal particles, the coal particles are rapidly heated together with an external heat source, the yield of pyrolysis tar is improved, and the problem of low heating speed in an external heating type heating mode is effectively solved.
Description
Technical Field
The utility model relates to an energy chemical industry field, specifically, the utility model relates to a compound hot type removes bed pyrolytic reaction device of wide particle size distribution coal and parallel group and series connection group and parallel group series combination thereof.
Background
At present, hydrogen-rich components contained in coal can be extracted by adopting a pyrolysis process and converted into coal gas and tar, and the semicoke is sent to a boiler for combustion and power generation, so that the resource utilization level and the comprehensive utilization value of the coal can be greatly improved.
Various coal pyrolysis technologies are developed at home and abroad successively, and obvious progress is made on the promotion of coal pyrolysis technology industrialization roads; such as the Toscoal pyrolysis technology of a foreign rotary furnace, the COED technology for treating the pulverized coal by adopting a multi-stage fluidized bed, the Lurgi-Ruhrgas solid heat carrier technology of a moving bed, the ECOPRO pulverized coal fast pyrolysis technology of a fluidized bed and the like. The method comprises a D-G solid heat carrier technology of the university of the major continuous engineering, a multi-stage rotary furnace (MRF) technology of the coal academy, a circulating fluidized bed technology of the university of Zhejiang, a moving bed pyrolysis technology of the institute of Chinese academy, a Cofei furnace pyrolysis technology, a heat accumulating type rotary bed pyrolysis technology, a gas-solid heat carrier double-circulation pyrolysis technology of coal Shaanxi, a rotary furnace technology of Shenmu Tianyuan, a pyrolysis and gasification integrated technology of extended petroleum and the like. However, the pyrolysis technologies almost do not really realize commercial operation, mainly because of narrow particle size range of raw materials, difficult separation of dust and pyrolysis gas, poor tar quality, low tar yield and the like.
Currently, the pyrolysis technology generally adopted in industry is mainly external heating type vertical furnace dry distillation technology, such as SJ vertical furnace, Cober carbonization furnace technology and the like. Patent CN202543140U, patent CN204174158U and the like disclose an external heating type vertical carbonization furnace, but the vertical furnace needs a longer time for pyrolysis and the quality of pyrolysis products is poor. Patent CN102465043B discloses a multistage staged pyrolysis gasification device and method for solid fuel, which mainly controls the temperature of different beds in a multi-layer fluidized bed reactor to regulate and control the secondary reaction degree of pyrolysis volatile components, but the patent uses a fluidized bed to limit the particle size range of raw materials and cannot process coal with wide particle size distribution. Patent CN102703097A provides a dry distillation device and method for coal with wide particle size distribution, which is characterized in that a partition plate with pores and an inner member of a heat transfer plate are arranged in the dry distillation device, so that gas-phase products generated in the dry distillation process of coal can escape in time, secondary reaction is reduced, and the quality of tar is improved. Patent CN103484134B discloses a hydrocarbon feedstock solid heat carrier dry distillation reactor and a dry distillation method, which utilize solid heat carrier heating to increase the heating rate, but the application range of the reactor is limited by the solid heat carrier heating adopted in the patent.
In summary, the existing pyrolysis technology cannot solve the technical problems of expanding the use range of the particle size of the raw material, improving the yield and quality of the pyrolysis product, shortening the pyrolysis time, reducing the dust content in the oil gas, and the like, so that a novel pyrolysis technology needs to be constructed to realize large-scale, efficient and clean treatment of low-rank coal with small particle size.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a composite heating formula removes bed pyrolysis device suitable for wide particle size distribution coal for can handle wide particle size distribution's low price coal to solve wide particle size distribution coal and slow, the volatile component leads to the secondary reaction seriously, pyrolysis tar productivity and the relatively poor scheduling problem of quality at the high temperature zone dwell time longer at the mass transfer of reactor. By arranging the inner member with the heating function in the reactor, the heat transfer rate in the pyrolysis process is enhanced, and the time required by pyrolysis is reduced.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a composite heating type moving bed pyrolysis reaction device for coal with wide particle size distribution comprises a feed inlet, a combustion heating chamber, a semicoke outlet and an inner member moving bed pyrolysis furnace, wherein a multi-stage inner member is arranged in the inner member moving bed pyrolysis furnace to form a channel for solid particles to move from top to bottom, and coal particles enter the channel formed by each stage of inner member from the feed inlet to move downwards and are discharged through the semicoke outlet, and the composite heating type moving bed pyrolysis reaction device is characterized in that: the inner components at all levels are of structures with inner cavities, and circulating medium connecting pipes are connected among all levels; wherein, the internal member at the uppermost layer is connected with a circulating medium inlet, and the internal member at the bottommost layer is connected with a circulating medium outlet; the circulating medium enters the inner member at the uppermost layer through the circulating medium inlet, enters the inner cavity of the inner member at the next stage step by step through each circulating medium connecting pipe, and is discharged through the circulating medium outlet.
The inner member is a flat plate structure with an inner cavity, or a corrugated plate structure with an inner cavity, or a plate structure spliced by a plurality of pipelines.
Wherein, the inner component moving bed pyrolysis furnace is a cuboid, and the feeding port is an opening positioned at the top of the furnace; wherein, the included angle between the plane of the inner member and the horizontal plane is 30-60 degrees.
Wherein, a plurality of pyrolysis gas outlets are arranged on the left side wall and the right side wall of the inner member moving bed pyrolysis furnace and positioned below the starting end of each stage of the inner member; the pyrolysis gas outlets are respectively connected with a condensation separator.
Wherein, the combustion heating chamber is attached to the front outer wall and the rear outer wall of the inner member moving bed pyrolysis furnace.
The utility model also provides a compound heating formula of wide particle size distribution coal moves bed pyrolytic reaction device parallel group, its characterized in that: the device is formed by connecting a plurality of composite heating type moving bed pyrolysis reaction devices with coal distributed in wide particle size in parallel through a medium communication device and a hot gas outlet communication device.
Wherein, the composite heating type moving bed pyrolysis reaction device of wide particle size distribution coal comprises a feed inlet, a combustion heating chamber, a semicoke outlet and an inner member moving bed pyrolysis furnace, wherein a multi-stage inner member is arranged in the inner member moving bed pyrolysis furnace to form a channel for solid particles to move from top to bottom, and the coal particles enter the channel formed by each stage of inner member from the feed inlet to move downwards and are discharged through the semicoke outlet, and the composite heating type moving bed pyrolysis reaction device is characterized in that: the inner components at all levels are of structures with inner cavities, and circulating medium connecting pipes are connected among all levels; wherein, the internal member at the uppermost layer is connected with a circulating medium inlet, and the internal member at the bottommost layer is connected with a circulating medium outlet; the circulating medium enters the inner member at the uppermost layer through the circulating medium inlet, enters the inner cavity of the inner member at the next stage step by step through each circulating medium connecting pipe, and is discharged through the circulating medium outlet.
Each circulating medium inlet is connected to the medium inlet communicating device in parallel, each circulating medium outlet is connected to the medium outlet communicating device in parallel, and each pyrolysis gas outlet on the same horizontal position is connected to the pyrolysis gas outlet communicating device in parallel.
The inner member is a flat plate structure with an inner cavity, or a corrugated plate structure with an inner cavity, or a plate structure spliced by a plurality of pipelines; the inner component moving bed pyrolysis furnace is a cuboid, and the feeding port is an opening positioned at the top of the inner component moving bed pyrolysis furnace; the included angle between the plane of the inner component and the horizontal plane is 30-60 degrees; a plurality of pyrolysis gas outlets are formed in the positions, below the starting ends of the inner components at all levels, on the left side wall and the right side wall of the inner component moving bed pyrolysis furnace; the pyrolysis gas outlets are respectively connected with a condensation separator; the combustion heating chamber is attached to the front outer wall and the rear outer wall of the inner member moving bed pyrolysis furnace.
Furthermore, the utility model discloses still provide a compound hot type of wide particle size distribution coal moves bed pyrolytic reaction device series connection group, it is by a plurality of the compound hot type of wide particle size distribution coal moves bed pyrolytic reaction device and establishes ties through first circulation tandem connection device and constitutes.
The composite heating type moving bed pyrolysis reaction device for coal with wide particle size distribution comprises a feed inlet, a combustion heating chamber, a semicoke outlet and an inner member moving bed pyrolysis furnace, wherein a multi-stage inner member is arranged in the inner member moving bed pyrolysis furnace to form a channel for solid particles to move from top to bottom, and the coal particles enter the channel formed by each stage of inner member from the feed inlet to move downwards and are discharged through the semicoke outlet, and the composite heating type moving bed pyrolysis reaction device is characterized in that: the inner components at all levels are of structures with inner cavities, and circulating medium connecting pipes are connected between all levels.
Wherein, the inner member at the uppermost layer is connected with a circulating medium inlet, and the inner member at the bottommost layer is connected with a circulating medium outlet; the circulating medium enters the uppermost layer of the inner member through the circulating medium inlet, enters the inner cavity of the inner member of the next stage step by step through each circulating medium connecting pipe, and is discharged through the circulating medium outlet.
One end of the first circulation series device is connected with the circulation medium outlet of one composite heating type moving bed pyrolysis reaction device with coal distributed in the wide particle size, and the other end of the first circulation series device is connected with the circulation medium inlet of the other composite heating type moving bed pyrolysis reaction device with coal distributed in the wide particle size.
The inner member is a flat plate structure with an inner cavity, or a corrugated plate structure with an inner cavity, or a plate structure spliced by a plurality of pipelines; the inner component moving bed pyrolysis furnace is a cuboid, and the feeding port is an opening positioned at the top of the inner component moving bed pyrolysis furnace; the included angle between the plane of the inner component and the horizontal plane is 30-60 degrees; pyrolysis gas outlets are respectively arranged on the left side wall and the right side wall of the inner component moving bed pyrolysis furnace and below the starting end of each stage of the inner component; the pyrolysis gas outlets are respectively connected with a condensation separator; the combustion heating chamber is attached to the front outer wall and the rear outer wall of the inner member moving bed pyrolysis furnace.
Furthermore, the utility model also provides a combination of wide particle size distribution coal's compound heating formula moving bed pyrolytic reaction device parallel group series connection combination, it is established ties through second circulation series connection device by the compound heating formula moving bed pyrolytic reaction device parallel group of a plurality of above-mentioned wide particle size distribution coal and constitutes.
The composite heating type moving bed pyrolysis reaction device for coal with wide particle size distribution is formed by connecting a plurality of composite heating type moving bed pyrolysis reaction devices for coal with wide particle size distribution in parallel through a medium inlet communicating device, a medium outlet communicating device and a pyrolysis gas outlet communicating device.
Wherein, the composite heating type moving bed pyrolysis reaction device of wide particle size distribution coal comprises a feed inlet, a combustion heating chamber, a semicoke outlet and an inner member moving bed pyrolysis furnace, wherein a multi-stage inner member is arranged in the inner member moving bed pyrolysis furnace to form a channel for solid particles to move from top to bottom, and the coal particles enter the channel formed by each stage of inner member from the feed inlet to move downwards and are discharged through the semicoke outlet, and the composite heating type moving bed pyrolysis reaction device is characterized in that: the inner components at all levels are in a structure with an inner cavity, and circulating medium connecting pipes are connected between all levels.
Wherein, the internal member at the uppermost layer is connected with a circulating medium inlet, and the internal member at the bottommost layer is connected with a circulating medium outlet; the circulating medium enters the inner member at the uppermost layer through the circulating medium inlet, and enters the inner cavity of the inner member at the next stage step by step through each circulating medium connecting pipe, and is discharged through the circulating medium outlet.
Each circulating medium inlet is connected to the medium inlet communicating device in parallel, each circulating medium outlet is connected to the medium outlet communicating device in parallel, and each pyrolysis gas outlet on the same horizontal position is connected to the pyrolysis gas outlet communicating device in parallel.
One end of the second circulation series device is connected with the medium outlet communicating device of one group of the composite heating type moving bed pyrolysis reaction device for distributing the coal with the wide particle size, and the other end of the second circulation series device is connected with the medium inlet communicating device of the other group of the composite heating type moving bed pyrolysis reaction device for distributing the coal with the wide particle size.
The inner member is a flat plate structure with an inner cavity, or a corrugated plate structure with an inner cavity, or a plate structure spliced by a plurality of pipelines; the inner component moving bed pyrolysis furnace is a cuboid, and the feeding port is an opening positioned at the top of the inner component moving bed pyrolysis furnace; the included angle between the plane of the inner component and the horizontal plane is 30-60 degrees; pyrolysis gas outlets are respectively arranged on the left side wall and the right side wall of the inner component moving bed pyrolysis furnace and below the starting end of each stage of the inner component; the pyrolysis gas outlets are respectively connected with a condensation separator; the combustion heating chamber is attached to the front outer wall and the rear outer wall of the inner member moving bed pyrolysis furnace.
The utility model has the advantages that: (1) an inner member with a heating function is added in a traditional moving bed pyrolysis device, a high-temperature medium in the inner member transfers heat to coal particles, the coal particles are rapidly heated together with an external heat source, the yield of pyrolysis tar is improved, and the problem of low heating speed in an external heating type heating mode is effectively solved; (2) the inner components are heated by using efficient heat exchange media, and other electrified heating elements are not used, so that the safety and reliability of the whole system are improved; (3) coal particles move in a channel formed by the inner members, and the exchange of the upper position and the lower position of a material layer is completed between two adjacent inner members, so that the mass transfer rate and the quality of a product are improved, and the pyrolysis reaction process is effectively regulated and controlled; (4) pyrolysis gas overflowing through the pyrolysis gas outlets of all stages can be independently condensed, collected and analyzed according to requirements, and can also be converged together for condensation, collection and analysis.
Drawings
Fig. 1 is a schematic structural diagram of a composite heating type moving bed pyrolysis device for coal with wide particle size distribution according to the present invention.
Fig. 2 is a schematic diagram of the internal components of the linear corrugated plate jacket structure of the composite heating type moving bed pyrolysis device for coal distribution with wide particle size of the utility model.
Fig. 3 is a schematic diagram of the inner member of the jacket structure of the curved corrugated plate of the composite heating type moving bed pyrolysis device for distributing coal with wide particle size of the present invention.
Fig. 4 is a schematic diagram of the pipeline structure internal components of the composite heating type moving bed pyrolysis device for coal with wide particle size distribution of the present invention.
Fig. 5 is a schematic structural diagram of a parallel group of the composite heating type moving bed pyrolysis device for coal with wide particle size distribution of the present invention.
Fig. 6 is a schematic structural diagram of a series-connected group of the composite heating type moving bed pyrolysis device for coal with wide particle size distribution of the present invention.
Fig. 7 is a schematic view of a series combination structure of parallel groups of the composite heating type moving bed pyrolysis device for coal with wide particle size distribution of the present invention.
Reference symbols of the drawings
1. Combustion heating chamber
2. Inner member moving bed pyrolysis furnace
3. Feed inlet
4. Circulating medium inlet
5. Pyrolysis gas outlet
6. Inner member
7. Circulating medium connecting pipe
8. Semicoke outlet
9. Outlet for circulating medium
10. Inner member of straight corrugated plate structure
11. Curved corrugated plate structure inner member
12. Inner member of pipeline structure
13. Medium inlet communicating device
14. Pyrolysis gas outlet communicating device
15. Medium outlet communicating device
16. First circulation series device
17. Second circulation series device
100. Composite heating type moving bed pyrolysis device for coal with wide particle size distribution
200. Combined heating type moving bed pyrolysis device parallel group with wide particle size distribution coal
300. The combined heating type moving bed pyrolysis device of the wide particle size distribution coal is connected in series.
Detailed Description
Specific embodiments of the present invention will now be described with reference to fig. 1 to 7.
Fig. 1 is a schematic structural view of a combined heating type moving bed pyrolysis apparatus for coal with a wide particle size distribution according to the present invention. Book (I)The utility model relates to a composite heating formula of wide particle size distribution coal removes bed pyrolytic reaction device 100 contains charge door 3, burning heating chamber 1, semicoke export 8 and internals and removes bed pyrolytic oven 2, be provided with multistage internals 6 in the internals removes bed pyrolytic oven 2, can be according to the downward sloping range of turning back in succession from top to bottom for form solid particle from the last passageway that moves downwards, the coal granule is followed charge door 3 gets into at different levels the passageway that internals 6 formed moves downwards and passes through semicoke export 8 discharges, its characterized in that: the inner components 6 at all levels are of a structure with an inner cavity, and circulating medium connecting pipes 7 are connected between all levels; wherein the uppermost layer member 6 is connected with a circulating medium inlet 4; the circulating medium enters the uppermost layer of the inner member 6 through the circulating medium inlet 4, enters the inner cavity of the next-stage inner member 6 through the circulating medium connecting pipes 7 step by step, finally leaves the lowermost layer of the inner member 6 through the circulating medium outlet 9, can strengthen the heat transfer of particles in the reactor, and forms a composite heating mode with an external combustion chamber, wherein the introduced circulating medium can be a high-efficiency heat-storage phase-change medium (the medium comprises KOH and NaNO)3、MgCl2Inorganic salts, paraffin, fatty acid and other organic and organic-inorganic composite media) or high-temperature steam or high-temperature flue gas, and circulating media suitable for different temperature intervals can be introduced into the inner cavity of each level of inner member 6, so that the inner member moves into the pyrolysis furnace 2 to form different temperature intervals.
Further, the inner member 6 may be a flat plate structure having an inner cavity, or a corrugated plate structure having an inner cavity, or a plate structure spliced by a plurality of pipes, or other structures having an inner cavity; for example: a straight corrugated plate structure inner member 10 as shown in fig. 2, a curved corrugated plate structure inner member 11 as shown in fig. 3, and a pipe structure inner member 12 as shown in fig. 4; wherein, the cavity (figure 2, figure 3) can be filled with circulating medium, or the pipelines (figure 4) can be filled with circulating medium.
Further, as shown in fig. 1, in the composite heating type moving bed pyrolysis device for coal with wide particle size distribution, the inner member moving bed pyrolysis furnace 2 is a cuboid, and the feed inlet 3 is an opening positioned at the top thereof, so that the one-time feeding amount is increased, the limitation of the particle size range of the raw material is expanded, and the treatment speed is further improved; the included angle between the plane of the inner member 6 and the horizontal plane is 30-60 degrees, and the installation angle can be adjusted according to the requirements of the pyrolysis production task so as to change the filling amount of the pyrolysis reaction device; a plurality of pyrolysis gas outlets 5 are respectively arranged at positions, which are positioned below the starting end of each stage of the inner member 6, on the left side wall and the right side wall of the inner member moving bed pyrolysis furnace 2, so that gas-phase products released by particle pyrolysis after the pyrolysis rate is increased can quickly and timely escape from the reactor under the action of an air extraction pump; the pyrolysis gas outlet 5 can be respectively connected with a condensation separator, and can be independently condensed, collected and analyzed according to requirements, or can be converged together for condensation, collection and analysis. The combustion heating chamber 1 is attached to the front outer wall and the rear outer wall of the inner member moving bed pyrolysis furnace 2, so that an external combustion chamber capable of being heated more rapidly is formed, and the heating efficiency is improved.
In addition, as shown in fig. 5, the schematic structural diagram of the parallel group of the composite heating type moving bed pyrolysis apparatus for coal with wide particle size distribution of the present invention is composed of a plurality of pieces of the composite heating type moving bed pyrolysis reaction apparatus 100 for coal with wide particle size distribution in parallel connection through a medium inlet communication apparatus 13, a medium outlet communication apparatus 15 and a pyrolysis gas outlet communication apparatus 14.
The composite heating type moving bed pyrolysis reaction apparatus 100 for coal with wide particle size distribution as shown in fig. 1 comprises a feed inlet 3, a combustion heating chamber 1, a semicoke outlet 8 and an inner member moving bed pyrolysis furnace 2, wherein a multi-stage inner member 6 is arranged in the inner member moving bed pyrolysis furnace 2 to form a channel through which solid particles move from top to bottom, and coal particles enter the channel formed by each stage of the inner member 6 from the feed inlet 3 and move downward and are discharged through the semicoke outlet 8, and is characterized in that: the inner components 6 at all levels are of a structure with an inner cavity, and circulating medium connecting pipes 7 are connected between all levels; wherein, the inner member 6 at the uppermost layer is connected with a circulating medium inlet 4, and the inner member 6 at the lowermost layer is connected with a circulating medium outlet 9; the circulating medium enters the uppermost internal member 6 through the circulating medium inlet 4 and advances stepwise through the circulating medium connecting pipes 7The mixture enters the inner cavity of the inner member 6 of the next stage and is finally discharged through the circulating medium outlet 9, the circulating medium can strengthen the heat transfer of the inner part of the reactor to the particles and forms a composite heating mode with an external combustion chamber, and the introduced circulating medium can be a high-efficiency heat storage phase change medium (the medium comprises KOH and NaNO)3、MgCl2Inorganic salts, paraffin, aliphatic acid and other organic and organic-inorganic composite media), and can also be high-temperature steam or high-temperature flue gas.
Wherein, each circulation medium inlet 4 is connected in parallel to the medium inlet communicating device 13, each circulation medium outlet 9 is connected in parallel to the medium outlet communicating device 15, and each pyrolysis gas outlet 5 on the same horizontal position is connected in parallel to the pyrolysis gas outlet communicating device 14.
Further, the inner member 6 shown in fig. 1 may be a flat plate structure having an inner cavity, or a corrugated plate structure having an inner cavity, or a plate structure assembled by a plurality of pipes, or other structures having an inner cavity; for example: a straight corrugated plate structure inner member 10 as shown in fig. 2, a curved corrugated plate structure inner member 11 as shown in fig. 3, and a pipe structure inner member 12 as shown in fig. 4; wherein, the cavity (figure 2, figure 3) can be filled with circulating medium, or the pipelines (figure 4) can be filled with circulating medium.
Further, as shown in fig. 1, in the composite heating type moving bed pyrolysis device for coal with wide particle size distribution, the inner member moving bed pyrolysis furnace 2 is a cuboid, and the feed inlet 3 is an opening positioned at the top thereof, so that the one-time feeding amount is increased, the limitation of the particle size range of the raw material is expanded, and the treatment speed is further improved; the included angle between the plane of the inner member 6 and the horizontal plane is 30-60 degrees, and the installation angle can be adjusted according to the requirements of the pyrolysis production task so as to change the filling amount of the pyrolysis reaction device; a plurality of pyrolysis gas outlets 5 are respectively arranged at positions, which are positioned below the starting end of each stage of the inner member 6, on the left side wall and the right side wall of the inner member moving bed pyrolysis furnace 2, so that gas-phase products released by particle pyrolysis after the pyrolysis rate is increased can quickly and timely escape from the reactor under the action of an air extraction pump; the pyrolysis gas outlet 5 can be respectively connected with a condensation separator, and can be independently condensed, collected and analyzed according to requirements, or can be converged together for condensation, collection and analysis; the combustion heating chamber 1 is attached to the front outer wall and the rear outer wall of the inner member moving bed pyrolysis furnace 2, so that an external combustion chamber capable of being heated more rapidly is formed, and the heating efficiency is improved.
Further, as shown in fig. 6, a schematic configuration diagram of a series-connected unit of the combined heating type moving bed pyrolysis apparatus for coal with a wide particle size distribution according to the present invention is shown, and a plurality of combined heating type moving bed pyrolysis reaction apparatuses 100 for coal with a wide particle size distribution are connected in series by the first circulation series-connection apparatus 16.
The composite heating type moving bed pyrolysis reaction apparatus 100 for coal with wide particle size distribution as shown in fig. 1 comprises a feed inlet 3, a combustion heating chamber 1, a semicoke outlet 8 and an inner member moving bed pyrolysis furnace 2, wherein a multi-stage inner member 6 is arranged in the inner member moving bed pyrolysis furnace 2 to form a channel through which solid particles move from top to bottom, and coal particles enter the channel formed by each stage of the inner member 6 from the feed inlet 3 and move downward and are discharged through the semicoke outlet 8, and is characterized in that: the inner components 6 at all levels are of a structure with an inner cavity, and circulating medium connecting pipes 7 are connected between all levels; wherein, the inner member 6 at the uppermost layer is connected with a circulating medium inlet 4, and the inner member 6 at the lowermost layer is connected with a circulating medium outlet 9; the circulating medium enters the uppermost layer of the inner component 6 through the circulating medium inlet 4, enters the inner cavity of the next-stage inner component 6 through the circulating medium connecting pipes 7 step by step and is finally discharged through the circulating medium outlet 9, the circulating medium can enhance the heat transfer of the inside of the reactor to particles and forms a composite heating mode with an external combustion chamber, and the introduced circulating medium can be a high-efficiency heat storage phase-change medium (the medium comprises KOH and NaNO)3、MgCl2Inorganic salts, paraffin, aliphatic acid and other organic and organic-inorganic composite media), and can also be high-temperature steam or high-temperature flue gas.
Wherein, one end of the first circulation series device 16 is connected with the circulation medium outlet 9 of one piece of the composite heating type moving bed pyrolysis reaction device 100 with coal having a wide particle size distribution, and the other end is connected with the circulation medium inlet 4 of the other piece of the composite heating type moving bed pyrolysis reaction device 100 with coal having a wide particle size distribution.
Further, the inner member 6 shown in fig. 1 may be a flat plate structure having an inner cavity, or a corrugated plate structure having an inner cavity, or a plate structure assembled by a plurality of pipes, or other structures having an inner cavity; for example: a straight corrugated plate structure inner member 10 as shown in fig. 2, a curved corrugated plate structure inner member 11 as shown in fig. 3, and a pipe structure inner member 12 as shown in fig. 4; wherein, the cavity (figure 2, figure 3) can be filled with circulating medium, or the pipelines (figure 4) can be filled with circulating medium.
Further, as shown in fig. 1, in the composite heating type moving bed pyrolysis device for coal with wide particle size distribution, the inner member moving bed pyrolysis furnace 2 is a cuboid, and the feed inlet 3 is an opening positioned at the top thereof, so that the one-time feeding amount is increased, the limitation of the particle size range of the raw material is expanded, and the treatment speed is further improved; the included angle between the plane of the inner member 6 and the horizontal plane is 30-60 degrees, and the installation angle can be adjusted according to the requirements of the pyrolysis production task so as to change the filling amount of the pyrolysis reaction device; a plurality of pyrolysis gas outlets 5 are respectively arranged at positions, which are positioned below the starting end of each stage of the inner member 6, on the left side wall and the right side wall of the inner member moving bed pyrolysis furnace 2, so that gas-phase products released by particle pyrolysis after the pyrolysis rate is increased can quickly and timely escape from the reactor under the action of an air extraction pump; the pyrolysis gas outlet 5 can be respectively connected with a condensation separator, and can be independently condensed, collected and analyzed according to requirements, or can be converged together for condensation, collection and analysis; the combustion heating chamber 1 is attached to the front outer wall and the rear outer wall of the inner member moving bed pyrolysis furnace 2, so that an external combustion chamber capable of being heated more rapidly is formed, and the heating efficiency is improved.
In addition, as shown in fig. 7, a schematic diagram of a series combination structure of parallel groups of the composite heating type moving bed pyrolysis apparatus for coal with wide particle size distribution of the present invention is shown, and the series combination structure is composed of a plurality of parallel groups 200 of the composite heating type moving bed pyrolysis apparatus for coal with wide particle size distribution, which are connected in series by the second circulation series connection apparatus 17.
The parallel group 200 of the composite heating type moving bed pyrolysis reaction devices for coal with wide particle size distribution shown in fig. 5 is formed by connecting a plurality of the composite heating type moving bed pyrolysis reaction devices 100 for coal with wide particle size distribution in parallel through a medium inlet communication device 13, a medium outlet communication device 15 and a pyrolysis gas outlet communication device 14.
The composite heating type moving bed pyrolysis reaction apparatus 100 for coal with wide particle size distribution as shown in fig. 1 comprises a feed inlet 3, a combustion heating chamber 1, a semicoke outlet 8 and an inner member moving bed pyrolysis furnace 2, wherein a multi-stage inner member 6 is arranged in the inner member moving bed pyrolysis furnace 2 to form a channel through which solid particles move from top to bottom, and coal particles enter the channel formed by each stage of the inner member 6 from the feed inlet 3 and move downward and are discharged through the semicoke outlet 8, and is characterized in that: the inner components 6 at all levels are of a structure with an inner cavity, and circulating medium connecting pipes 7 are connected between all levels; wherein, the inner member 6 at the uppermost layer is connected with a circulating medium inlet 4, and the inner member 6 at the lowermost layer is connected with a circulating medium outlet 9; the circulating medium enters the uppermost layer of the inner component 6 through the circulating medium inlet 4, enters the inner cavity of the next-stage inner component 6 through the circulating medium connecting pipes 7 step by step and is finally discharged through the circulating medium outlet 9, the circulating medium can enhance the heat transfer of the inside of the reactor to particles and forms a composite heating mode with an external combustion chamber, and the introduced circulating medium can be a high-efficiency heat storage phase-change medium (the medium comprises KOH and NaNO)3、MgCl2Inorganic salts, paraffin, aliphatic acid and other organic and organic-inorganic composite media), and can also be high-temperature steam or high-temperature flue gas.
Wherein, each circulation medium inlet 4 is connected in parallel to the medium inlet communicating device 13, each circulation medium outlet 9 is connected in parallel to the medium outlet communicating device 15, and each pyrolysis gas outlet 5 on the same horizontal position is connected in parallel to the pyrolysis gas outlet communicating device 14.
One end of the second circulation series device 17 is connected to the medium outlet communication device 15 of one group of the composite heating type moving bed pyrolysis reaction device 100 with coal having a wide particle size distribution, and the other end is connected to the medium inlet communication device 13 of the other group of the composite heating type moving bed pyrolysis reaction device 100 with coal having a wide particle size distribution.
Further, the inner member 6 shown in fig. 1 may be a flat plate structure having an inner cavity, or a corrugated plate structure having an inner cavity, or a plate structure assembled by a plurality of pipes, or other structures having an inner cavity; for example: a straight corrugated plate structure inner member 10 as shown in fig. 2, a curved corrugated plate structure inner member 11 as shown in fig. 3, and a pipe structure inner member 12 as shown in fig. 4; wherein, the cavity (figure 2, figure 3) can be filled with circulating medium, or the pipelines (figure 4) can be filled with circulating medium.
Further, as shown in fig. 1, in the composite heating type moving bed pyrolysis apparatus 100 for coal with wide particle size distribution, the inner member moving bed pyrolysis furnace 2 is a cuboid, and the feed inlet 3 is an opening located at the top thereof, so that the one-time feeding amount is increased, the limitation of the particle size range of the raw material is expanded, and the treatment speed is further increased; the included angle between the plane of the inner member 6 and the horizontal plane is 30-60 degrees, and the installation angle can be adjusted according to the requirements of the pyrolysis production task so as to change the filling amount of the pyrolysis reaction device; a plurality of pyrolysis gas outlets 5 are respectively arranged at positions, which are positioned below the starting end of each stage of the inner member 6, on the left side wall and the right side wall of the inner member moving bed pyrolysis furnace 2, so that gas-phase products released by particle pyrolysis after the pyrolysis rate is increased can quickly and timely escape from the reactor under the action of an air extraction pump; the pyrolysis gas outlet 5 can be respectively connected with a condensation separator, and can be independently condensed, collected and analyzed according to requirements, or can be converged together for condensation, collection and analysis; the combustion heating chamber 1 is attached to the front outer wall and the rear outer wall of the inner member moving bed pyrolysis furnace 2, so that an external combustion chamber capable of being heated more rapidly is formed, and the heating efficiency is improved.
In the above embodiment, the heating mode is that an external electric furnace indirectly heats and is coupled with an internal component to heat (a high-temperature composite phase change heat storage medium is adopted), the Xinjiang enable coal, the particle size of which is less than 6mm, is used as a raw material to carry out pyrolysis, and the semicoke cooling, gas-solid separation, tar condensation and recovery, coal gas treatment technology and the like can be processed according to the existing mature technology.
It is worth noting that the utility model discloses the composite heating formula of wide particle size distribution coal removes bed pyrolysis reaction device compares with the pyrolysis device that does not add and has the heating function inner member, and the coal granule is in the utility model discloses the programming rate is fast in the removal bed, and about 30min can reach predetermined target temperature, shortens more than half than original time, shows that heat transfer rate has very big improvement. And the temperature of the particles at the center of each bed layer is very uniform, which shows that the heat transfer rate and the mass transfer rate of the particles are very uniform under the action of the internal member. Meanwhile, the yield and the quality of the pyrolysis tar are greatly improved, the yield can reach more than 85 percent of the yield of the Gejin tar, and the content of the light tar at the temperature lower than 360 ℃ is more than 86 percent.
Claims (11)
1. A composite heating type moving bed pyrolysis reaction device for coal with wide particle size distribution comprises a feed inlet (3), a combustion heating chamber (1), a semicoke outlet (8) and an inner member moving bed pyrolysis furnace (2), wherein a plurality of stages of inner members (6) are arranged in the inner member moving bed pyrolysis furnace (2) to form a channel for solid particles to move from top to bottom, coal particles enter the channel formed by each stage of the inner members (6) from the feed inlet (3) to move downwards and are discharged through the semicoke outlet (8), and the composite heating type moving bed pyrolysis reaction device is characterized in that: the inner components (6) at all levels are of structures with inner cavities, and circulating medium connecting pipes (7) are connected between all levels;
wherein, the inner member (6) at the uppermost layer is connected with a circulating medium inlet (4), and the inner member (6) at the bottommost layer is connected with a circulating medium outlet (9); circulating media enter the uppermost layer of the inner component (6) through the circulating media inlet (4), enter the inner cavity of the inner component (6) of the next stage step by step through the circulating media connecting pipes (7) and are discharged through the circulating media outlet (9).
2. The pyrolysis reaction apparatus of a combined heating type moving bed for coal with a wide particle size distribution according to claim 1, wherein: the inner member (6) is of a flat plate structure with an inner cavity, or of a corrugated plate structure with an inner cavity, or of a plate structure spliced by a plurality of pipelines.
3. The pyrolysis reaction apparatus of a combined heating type moving bed for coal with wide particle size distribution according to claim 1 or 2, wherein: the inner component moving bed pyrolysis furnace (2) is a cuboid, and the feeding port (3) is an opening positioned at the top of the furnace;
the included angle between the plane of the inner member (6) and the horizontal plane is 30-60 degrees.
4. The pyrolysis reaction apparatus of a combined heating type moving bed for coal with wide particle size distribution according to claim 1 or 2, wherein: pyrolysis gas outlets (5) are respectively arranged on the left side wall and the right side wall of the inner member moving bed pyrolysis furnace (2) and below the starting end of each stage of the inner member (6), and the pyrolysis gas outlets (5) are respectively connected to the condensation separator.
5. The pyrolysis reaction apparatus of a combined heating type moving bed for coal with wide particle size distribution according to claim 1 or 2, wherein: the combustion heating chamber (1) is attached to the front and rear outer walls of the inner member moving bed pyrolysis furnace (2).
6. The utility model provides a compound heating formula moving bed pyrolytic reaction device parallel group of wide particle size distribution coal which characterized in that: the device is composed of a plurality of pieces of composite heating type moving bed pyrolysis reaction devices (100) with coal having wide particle size distribution according to claims 1 to 5, wherein the plurality of pieces of composite heating type moving bed pyrolysis reaction devices are connected in parallel through a medium inlet communication device (13), a medium outlet communication device (15) and a pyrolysis gas outlet communication device (14);
the composite heating type moving bed pyrolysis reaction device (100) with coal distributed in wide particle size comprises a feed opening (3), a combustion heating chamber (1), a semicoke outlet (8) and an inner member moving bed pyrolysis furnace (2), wherein a plurality of stages of inner members (6) are arranged in the inner member moving bed pyrolysis furnace (2) to form a channel for solid particles to move from top to bottom, coal particles enter the channel formed by each stage of the inner members (6) from the feed opening (3) to move downwards and are discharged through the semicoke outlet (8), and the composite heating type moving bed pyrolysis reaction device is characterized in that: the inner components (6) at all levels are of structures with inner cavities, and circulating medium connecting pipes (7) are connected between all levels;
wherein, the inner member (6) at the uppermost layer is connected with a circulating medium inlet (4), and the inner member (6) at the bottommost layer is connected with a circulating medium outlet (9); circulating media enter the inner member (6) at the uppermost layer through the circulating media inlet (4), enter the inner cavity of the inner member (6) at the next stage step by step through each circulating media connecting pipe (7) and are discharged through the circulating media outlet (9);
wherein, each circulation medium inlet (4) is connected in parallel to the medium inlet communicating device (13), each circulation medium outlet (9) is connected in parallel to the medium outlet communicating device (15), and each pyrolysis gas outlet (5) on the same horizontal position is connected in parallel to the pyrolysis gas outlet communicating device (14).
7. The parallel group of composite heating type moving bed pyrolysis reaction device for coal with wide particle size distribution according to claim 6, characterized in that: the inner member (6) is of a flat plate structure with an inner cavity, or of a corrugated plate structure with an inner cavity, or of a plate structure spliced by a plurality of pipelines; the inner component moving bed pyrolysis furnace (2) is a cuboid, and the feeding port (3) is an opening positioned at the top of the furnace; the included angle between the plane of the inner component (6) and the horizontal plane is 30-60 degrees; pyrolysis gas outlets (5) are respectively arranged at the positions, below the starting end of each stage of the inner component (6), on the left side wall and the right side wall of the inner component moving bed pyrolysis furnace (2); the pyrolysis gas outlets (5) are respectively connected with a condensation separator; the combustion heating chamber (1) is attached to the front and rear outer walls of the inner member moving bed pyrolysis furnace (2).
8. The utility model provides a compound heating formula of wide particle size distribution coal removes bed pyrolytic reaction device series group which characterized in that: the device consists of a plurality of pieces of composite heating type moving bed pyrolysis reaction devices (100) with coal with wide particle size distribution according to the claims 1 to 5, which are connected in series through a first circulation series device (16);
the composite heating type moving bed pyrolysis reaction device (100) with coal distributed in wide particle size comprises a feed opening (3), a combustion heating chamber (1), a semicoke outlet (8) and an inner member moving bed pyrolysis furnace (2), wherein a plurality of stages of inner members (6) are arranged in the inner member moving bed pyrolysis furnace (2) to form a channel for solid particles to move from top to bottom, coal particles enter the channel formed by each stage of the inner members (6) from the feed opening (3) to move downwards and are discharged through the semicoke outlet (8), and the composite heating type moving bed pyrolysis reaction device is characterized in that: the inner components (6) at all levels are of structures with inner cavities, and circulating medium connecting pipes (7) are connected between all levels;
wherein, the inner member (6) at the uppermost layer is connected with a circulating medium inlet (4), and the inner member (6) at the bottommost layer is connected with a circulating medium outlet (9); circulating media enter the inner member (6) at the uppermost layer through the circulating media inlet (4), enter the inner cavity of the inner member (6) at the next stage step by step through each circulating media connecting pipe (7) and are discharged through the circulating media outlet (9);
one end of the first circulating series device (16) is connected with the circulating medium outlet (9) of one piece of composite heating type moving bed pyrolysis reaction device (100) with coal distributed in a wide particle size, and the other end of the first circulating series device is connected with the circulating medium inlet (4) of the other piece of composite heating type moving bed pyrolysis reaction device (100) with coal distributed in a wide particle size.
9. The series-connected group of combined heating type moving bed pyrolysis reaction devices for coal with wide particle size distribution according to claim 8, characterized in that: the inner member (6) is of a flat plate structure with an inner cavity, or of a corrugated plate structure with an inner cavity, or of a plate structure spliced by a plurality of pipelines; the inner component moving bed pyrolysis furnace (2) is a cuboid, and the feeding port (3) is an opening positioned at the top of the furnace; the included angle between the plane of the inner component (6) and the horizontal plane is 30-60 degrees; pyrolysis gas outlets (5) are respectively arranged at the positions, below the starting end of each stage of the inner component (6), on the left side wall and the right side wall of the inner component moving bed pyrolysis furnace (2); the pyrolysis gas outlets (5) are respectively connected with a condensation separator; the combustion heating chamber (1) is attached to the front and rear outer walls of the inner member moving bed pyrolysis furnace (2).
10. The utility model provides a combination of wide particle size distribution coal's compound heating formula moving bed pyrolytic reaction device parallel group series connection, its characterized in that: the system consists of a plurality of parallel groups (200) of composite heating type moving bed pyrolysis reaction devices with wide particle size distribution coal according to claim 6, which are connected in series through a second circulating series device (17);
wherein, the combined heating type moving bed pyrolysis reaction device parallel group (200) for coal with wide particle size distribution is formed by connecting a plurality of the combined heating type moving bed pyrolysis reaction devices (100) for coal with wide particle size distribution according to the claims 1 to 5 in parallel through a medium inlet communicating device (13), a medium outlet communicating device (15) and a pyrolysis gas outlet communicating device (14);
the composite heating type moving bed pyrolysis reaction device (100) with coal distributed in wide particle size comprises a feed opening (3), a combustion heating chamber (1), a semicoke outlet (8) and an inner member moving bed pyrolysis furnace (2), wherein a plurality of stages of inner members (6) are arranged in the inner member moving bed pyrolysis furnace (2) to form a channel for solid particles to move from top to bottom, coal particles enter the channel formed by each stage of the inner members (6) from the feed opening (3) to move downwards and are discharged through the semicoke outlet (8), and the composite heating type moving bed pyrolysis reaction device is characterized in that: the inner components (6) at all levels are of structures with inner cavities, and circulating medium connecting pipes (7) are connected between all levels;
wherein, the inner member (6) at the uppermost layer is connected with a circulating medium inlet (4), and the inner member (6) at the bottommost layer is connected with a circulating medium outlet (9); circulating media enter the inner member (6) at the uppermost layer through the circulating media inlet (4), enter the inner cavity of the inner member (6) at the next stage step by step through each circulating media connecting pipe (7) and are discharged through the circulating media outlet (9);
wherein, each circulating medium inlet (4) is connected in parallel to the medium inlet communicating device (13), each circulating medium outlet (9) is connected in parallel to the medium outlet communicating device (15), and each pyrolysis gas outlet (5) on the same horizontal position is connected in parallel to the pyrolysis gas outlet communicating device (14);
one end of the second circulation series device (17) is connected with the medium outlet communicating device (15) of one group of the composite heating type moving bed pyrolysis reaction device (100) with coal having wide particle size distribution, and the other end is connected with the medium inlet communicating device (13) of the other group of the composite heating type moving bed pyrolysis reaction device (100) with coal having wide particle size distribution.
11. The combined heating type moving bed pyrolysis reaction device for coal with wide particle size distribution according to claim 10, wherein the parallel groups are combined in series, and the combined heating type moving bed pyrolysis reaction device comprises: the inner member (6) is of a flat plate structure with an inner cavity, or of a corrugated plate structure with an inner cavity, or of a plate structure spliced by a plurality of pipelines; the inner component moving bed pyrolysis furnace (2) is a cuboid, and the feeding port (3) is an opening positioned at the top of the furnace; the included angle between the plane of the inner component (6) and the horizontal plane is 30-60 degrees; pyrolysis gas outlets (5) are respectively arranged at the positions, below the starting end of each stage of the inner component (6), on the left side wall and the right side wall of the inner component moving bed pyrolysis furnace (2); the pyrolysis gas outlets (5) are respectively connected with a condensation separator; the combustion heating chamber (1) is attached to the front and rear outer walls of the inner member moving bed pyrolysis furnace (2).
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