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CN-122012123-A - Indirect heat exchange translational bed carbonization equipment

CN122012123ACN 122012123 ACN122012123 ACN 122012123ACN-122012123-A

Abstract

The application relates to the technical field of biomass energy utilization, in particular to a translation bed carbonization device with indirect heat exchange, which comprises a flue gas outer box body, wherein an upper layer chain plate machine and a lower layer chain plate machine are arranged in the flue gas outer box body, a driving chain wheel, a driven chain wheel, a chain and a chain plate are arranged in the upper layer chain plate machine and the lower layer chain plate machine, a feed inlet and a feed air locking valve are arranged at the top of the flue gas outer box body, a discharge outlet and a discharge air locking valve are arranged at the bottom of the flue gas outer box body, a flue gas inlet and a flue gas outlet are arranged on the side wall of the flue gas outer box body, and the multi-layer chain plate machine and a surrounding flue gas channel are arranged.

Inventors

  • LV PIN

Assignees

  • 北京绿炭科技有限责任公司

Dates

Publication Date
20260512
Application Date
20260228

Claims (10)

  1. 1. An indirect heat exchange translational bed carbonization device is characterized by comprising: the device comprises a flue gas outer box body (1), wherein at least two layers of chain plate machines which are arranged in parallel up and down are arranged in the flue gas outer box body (1), the flue gas outer box body comprises an upper layer of chain plate machines (2) and a lower layer of chain plate machines (3), and the number of layers of the chain plate machines can be further increased according to the treatment capacity; A driving chain wheel (22), a driven chain wheel (23), a chain (24) and chain plates are arranged in the upper chain plate machine (2) and the lower chain plate machine (3); The top of the flue gas outer box body (1) is provided with a feed inlet (28) and a feed air locking valve (29), and the bottom is provided with a discharge outlet (31) and a discharge air locking valve (32); the flue gas outer box (1) is provided with a flue gas inlet (14) and a flue gas outlet (15) on the side wall, a flue gas channel (13) is formed between the flue gas inlet (14) and the flue gas outlet (15), and the flue gas channel (13) surrounds the outer sides of the upper-layer chain plate machine (2) and the lower-layer chain plate machine (3) and is used for realizing indirect heat exchange.
  2. 2. The carbonization equipment of the translational bed with indirect heat exchange according to claim 1, wherein the upper layer chain plate machine (2) and the lower layer chain plate machine (3) are respectively provided with a comb tooth turning device (26), and comb teeth of the comb tooth turning device (26) are perpendicular to the movement direction of the chain plate and are used for turning materials on the chain plate.
  3. 3. The translational bed carbonization device for indirect heat exchange according to claim 2, wherein the feeding end of the upper layer chain plate machine (2) is provided with a material distributing plate (27), and the material distributing plate (27) can adjust the inclination angle to uniformly distribute materials on the chain plate to avoid material accumulation.
  4. 4. The carbonization equipment of the translational bed with indirect heat exchange according to claim 3, wherein the upper layer chain plate machine (2) and the lower layer chain plate machine (3) are provided with chain guide rails (21), and the chain guide rails (21) are matched with the chains (24) to limit the movement track of the chains and prevent the chains from deviating.
  5. 5. The carbonization equipment of the translational bed with indirect heat exchange according to claim 4, wherein scraping plates (25) are arranged below the chain plates of the upper chain plate machine (2) and the lower chain plate machine (3), and the scraping plates (25) are in contact with the chain plates and are used for cleaning residual materials on the chain plates and avoiding material adhesion.
  6. 6. The translational bed carbonization device for indirect heat exchange according to claim 5, wherein the inner wall of the flue gas outer box body (1) is provided with a heat preservation lining (12), and the heat preservation lining (12) is used for reducing heat loss in the device and improving heat exchange efficiency.
  7. 7. The indirect heat exchange translational bed carbonization device of claim 6, wherein the flue gas inlet (14) and the flue gas outlet (15) are arranged in a plurality of and one-to-one correspondence to form independent flue gas channel partitions, and the device is used for realizing sectional temperature control and accurately matching the temperature requirements of different stages of biomass carbonization.
  8. 8. The translational bed carbonization device with indirect heat exchange according to claim 7, wherein the feeding air locking valve (29) and the discharging air locking valve (32) are both in double sealing structures, and are used for guaranteeing the air tightness of the carbonization cavity, preventing air infiltration and maintaining an anaerobic carbonization environment.
  9. 9. The indirect heat exchange translational bed carbonization device according to claim 8, wherein the tail end of the flue gas outer box body (1) is provided with a pyrolysis product delivery pipeline (28), and the pyrolysis product delivery pipeline (28) is communicated with the carbonization cavity and is used for collecting pyrolysis products generated in the carbonization process.
  10. 10. The translational bed carbonization device for indirect heat exchange according to claim 9, wherein the bottom of the flue gas outer box body (1) is provided with a main supporting leg (11), and the height of the main supporting leg (11) can be adjusted to adapt to different installation sites so as to ensure the stability of the device.

Description

Indirect heat exchange translational bed carbonization equipment Technical Field The invention relates to the technical field of biomass energy utilization, in particular to a translational bed carbonization device with indirect heat exchange. Background Biomass is used as renewable carbon neutral resource with abundant reserves, and the pyrolysis carbonization technology is widely applied to the aspects of producing products such as substance carbon, combustible gas, tar and the like, and covers the fields of agricultural waste treatment, environment-friendly material production, energy recovery and the like. In the current industrial production, the mainstream biomass carbonization equipment mostly adopts a direct heating mode, such as a rotary kiln, a fixed bed and the like, and realizes heating through direct contact of flue gas and materials, so that the basic requirement of large-scale production can be met, but the limitation of the existing equipment is increasingly prominent along with the improvement of the requirements of industry on the quality of carbonized products, the energy utilization efficiency and the running stability of the equipment. The existing direct heating carbonization equipment has the obvious defects that firstly, the smoke is in direct contact with materials, the materials are heated unevenly, the quality of carbonized products is unstable, smoke impurities are easy to pollute pyrolysis gas products to influence the subsequent application, secondly, the materials are conveyed and turned into a single structure, the materials are easily stacked and agglomerated in the carbonization process and cannot be heated evenly, incomplete carbonization and high energy consumption are caused, thirdly, the heat exchange channel is unreasonably designed, the heat transfer efficiency is low, a large amount of waste heat is discharged along with the smoke to cause energy waste, meanwhile, the heat insulation performance of the equipment is poor, the heat loss is further increased, fourthly, the sealing reliability of air locking valves of feeding and discharging links is poor, air is easy to infiltrate into carbonization cavities to damage anaerobic environments to influence the normal operation of carbonization reaction, and thirdly, core conveying components such as chain plates and chains are easy to have the problems of deviation, looseness and the like, the running stability of the equipment is insufficient, the equipment is easy to cause fault shutdown and the production continuity is influenced. Disclosure of Invention The present invention has been made in view of the above-mentioned problems occurring in the prior art. In order to solve the technical problems, the invention provides the technical scheme that the translational bed carbonization equipment for indirect heat exchange comprises a flue gas outer box body, wherein at least two layers of chain plate machines which are arranged in parallel up and down are arranged in the flue gas outer box body, the translational bed carbonization equipment comprises an upper layer chain plate machine and a lower layer chain plate machine, the number of layers of the chain plate machines can be further increased according to the processing amount, and a driving chain wheel, a driven chain wheel, a chain and chain plates are arranged in the upper layer chain plate machine and the lower layer chain plate machine; The top of the flue gas outer box body is provided with a feed inlet and a feed air locking valve, and the bottom of the flue gas outer box body is provided with a discharge outlet and a discharge air locking valve; the side wall of the flue gas outer box body is provided with a flue gas inlet and a flue gas outlet, a flue gas channel is formed between the flue gas inlet and the flue gas outlet, and the flue gas channel surrounds the outer sides of the upper-layer chain plate machine and the lower-layer chain plate machine and is used for realizing indirect heat exchange. As a preferable scheme of the indirect heat exchange translational bed carbonization equipment, the upper layer chain plate machine and the lower layer chain plate machine are respectively provided with a comb tooth turning device, and comb teeth of the comb tooth turning device are perpendicular to the movement direction of the chain plate and are used for turning materials on the chain plate. As a preferable scheme of the translational bed carbonization equipment for indirect heat exchange, the feeding end of the upper-layer chain plate machine is provided with a material distributing plate, and the material distributing plate can be used for uniformly distributing materials on the chain plate to avoid material accumulation. As a preferable scheme of the carbonization equipment of the translational bed with indirect heat exchange, the upper-layer chain plate machine and the lower-layer chain plate machine are both provided with chain guide rails, and the chain guid