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CN-122012124-A - Destructive distillation system

CN122012124ACN 122012124 ACN122012124 ACN 122012124ACN-122012124-A

Abstract

The invention belongs to the technical field of carbonization, and discloses a carbonization system which comprises a furnace body and a transport mechanism, wherein a first heating section, a second heating section, a cooling section and a coke quenching section which are all in tunnel structures are arranged in the furnace body, the transport mechanism is movably arranged in the furnace body and can move to the first heating section, move to the second heating section from the first heating section, move to the cooling section from the second heating section and move to the coke quenching section from the cooling section, and the transport mechanism is used for transporting raw coal and is sequentially arranged along the conveying direction of the raw coal. The invention improves the production efficiency and quality of the products.

Inventors

  • HUANG ZHIJUN
  • FU CHAO
  • LONG HUAN

Assignees

  • 松山湖材料实验室
  • 中科卓异环境科技(东莞)有限公司

Dates

Publication Date
20260512
Application Date
20241112

Claims (10)

  1. 1. A retorting system, comprising: The coke quenching furnace comprises a furnace body (100), wherein a first heating section (110), a second heating section (120), a cooling section (130) and a coke quenching section (140) which are all in tunnel structures are arranged in the furnace body (100); The conveying mechanism is movably arranged in the furnace body (100), can move to the first heating section (110), can move to the second heating section (120) from the first heating section (110), can move to the cooling section (130) from the second heating section (120) and can move to the quenching Jiao Duan (140) from the cooling section (130), and is used for conveying raw coal, and the first heating section (110), the second heating section (120), the cooling section (130) and the quenching Jiao Duan (140) are sequentially arranged along the conveying direction of the raw coal.
  2. 2. The retorting system according to claim 1, wherein said transport mechanism includes a power assembly and a fire grate, said fire grate penetrating said first heating section (110), said second heating section (120), said cooling section (130) and said quenching Jiao Duan (140), said power assembly being drivingly connected to said fire grate for driving said fire grate to move, said fire grate for supporting said raw coal; Or the transport mechanism comprises a kiln car, a track is arranged in the furnace body (100), the track penetrates through the first heating section (110), the second heating section (120), the cooling section (130) and the quenching Jiao Duan (140), the kiln car is movably arranged on the track along the extending direction of the track, and the kiln car is used for supporting raw coal.
  3. 3. The dry distillation system according to claim 1, wherein the furnace body (100) is annular, and the first heating section (110), the second heating section (120), the cooling section (130) and the quenching Jiao Duan (140) are sequentially arranged along the annular direction of the furnace body (100); Or the furnace body (100) is in a straight line, and the first heating section (110), the second heating section (120), the cooling section (130) and the quenching Jiao Duan (140) are sequentially arranged along the extending direction of the furnace body (100); Or furnace body (100) include multilayer tunnel structure (150), multilayer tunnel structure (150) set gradually along vertical direction, dry distillation system still includes lift transport mechanism (160), lift transport mechanism (160) are arranged in adjacent two-layer tunnel structure (150) the transportation of raw coal, every layer tunnel structure (150) include at least one processing section, processing section be first heating section (110), second heating section (120), cooling section (130) or put out Jiao Duan (140).
  4. 4. The retorting system according to claim 1, further comprising a porous medium burner (200) provided to said second heating section (120), said system further comprising combustion-supporting means for feeding combustion-supporting gas into said second heating section (120), said combustion-supporting gas having a volume fraction of oxygen of 21% -100%.
  5. 5. The retorting system according to claim 4, characterized in that said combustion supporting means comprises an oxygen generating module (300), said oxygen generating module (300) having an oxygen outlet for discharging oxygen and a nitrogen outlet for discharging nitrogen, said oxygen outlet being in communication with said second heating section (120), said nitrogen outlet being in communication with said quenching Jiao Duan (140).
  6. 6. The dry distillation system according to any one of claims 1 to 5, wherein the furnace body (100) is provided with a smoke outlet, the smoke outlet is provided at the first heating section (110) and is disposed near an inlet of the first heating section (110), smoke of the first heating section (110), the second heating section (120) and the cooling section (130) is discharged through the smoke outlet, and a flowing direction of the smoke is opposite to a conveying direction of the raw coal, and the smoke in the first heating section (110) and the second heating section (120) is used for heating the raw coal.
  7. 7. The retorting system according to claim 6, characterized in that it further comprises a purification device (400), the inlet of said purification device (400) being in communication with said fume outlet, said purification device (400) being adapted to purify said fume to obtain a preset product comprising tar and a treatment gas comprising product gas and/or return gas; the first outlet of the purification device (400) is in selective communication with the second heating section (120), the first outlet is in communication with the second heating section (120) for inputting the return gas to the second heating section (120), and/or the second outlet of the purification device (400) is in selective communication with the quenching Jiao Duan (140), the second outlet is in communication with the quenching Jiao Duan (140) for inputting the return gas to the quenching Jiao Duan (140).
  8. 8. The retorting system according to any one of claims 1to 5, characterized in that said furnace body (100) is provided with a gas passage selectively communicating said second heating section (120) with said cooling section (130); the gas passage communicates the second heating section (120) and the cooling section (130) to deliver a cooling generating gas of the cooling section (130) to the second heating section (120), the cooling generating gas comprising water gas and/or water vapor.
  9. 9. The retorting system according to any one of claims 1-5, further comprising a heat exchange device (500), said raw coal being heated in said second heating section (120) to produce a main product, said heat exchange device (500) being disposed in said cooling section (130), said heat exchange device (500) being capable of absorbing heat of said main product of said cooling section (130) to reduce the temperature of said main product by 320-380 ℃.
  10. 10. A retorting system according to any one of claims 1-5, characterized in that it further comprises a water mist device (600), said water mist device (600) being mounted to said furnace body (100) and being adapted to spray water mist towards a main product located in a transport mechanism of said cooling section (130).

Description

Destructive distillation system Technical Field The invention relates to the technical field of carbonization, in particular to a carbonization system. Background The semi-coke is also called semicoke and coke powder, and is prepared by firing high-quality dwarf clean coal blocks. As a novel carbon material, the carbon material gradually replaces metallurgical coke by the characteristics of high fixed carbon, high specific resistance, high chemical activity, low ash content, low aluminum, low sulfur and low phosphorus, and is widely applied to the production of products such as calcium carbide, ferroalloy, ferrosilicon, silicon carbide and the like, so that the carbon material gradually becomes an irreplaceable carbon material. In the prior art, a vertical carbonization barrel is adopted for firing coal blocks, an inlet of the vertical carbonization barrel is arranged at the top, the coal blocks are poured into the barrel from the top of the vertical carbonization barrel, the coal blocks downwards move by virtue of self gravity of the coal blocks, and the coal blocks are piled in the vertical carbonization barrel and are burnt in the vertical carbonization barrel, so that semi-coke is obtained. However, due to the fact that the diameter of the vertical carbonization barrel is large, the temperature of the coal blocks close to the axis of the vertical carbonization barrel is lower than that of the coal blocks close to the inner wall of the vertical carbonization barrel, the coal blocks close to the axis of the vertical carbonization barrel cannot be fully combusted, and meanwhile, the coal blocks close to the inner wall of the vertical carbonization barrel are excessively combusted, so that the partial combustion condition occurs, and the production efficiency of the semi-coke and the quality of the obtained semi-coke are affected. Disclosure of Invention The invention aims to provide a carbonization system to solve the technical problems of low production efficiency and low quality of obtained semi-coke in the prior art. The technical scheme adopted by the invention is as follows: a retorting system comprising: the device comprises a furnace body, wherein a first heating section, a second heating section, a cooling section and a coke quenching section which are all in tunnel structures are arranged in the furnace body; The conveying mechanism is movably arranged in the furnace body and can move to the first heating section, move from the first heating section to the second heating section, move from the second heating section to the cooling section and move from the cooling section to the coke quenching section, and the conveying mechanism is used for conveying raw coal, and the first heating section, the second heating section, the cooling section and the coke quenching section are sequentially arranged along the conveying direction of the raw coal. Optionally, the conveying mechanism comprises a power component and a fire grate, the fire grate penetrates through the first heating section, the second heating section, the cooling section and the coke quenching section, the power component is in driving connection with the fire grate and is used for driving the fire grate to move, and the fire grate is used for supporting the raw coal; Or the transport mechanism comprises a kiln car, a track is arranged in the furnace body, the track penetrates through the first heating section, the second heating section, the cooling section and the coke quenching section, the kiln car is movably arranged on the track along the extending direction of the track, and the kiln car is used for supporting raw coal. Optionally, the furnace body is annular, and the first heating section, the second heating section, the cooling section and the quenching section are sequentially arranged along the annular direction of the furnace body; Or the furnace body is in a straight line, and the first heating section, the second heating section, the cooling section and the quenching section are sequentially arranged along the extending direction of the furnace body; Or the furnace body comprises a multi-layer tunnel structure, the multi-layer tunnel structure is sequentially arranged along the vertical direction, the carbonization system further comprises a lifting transfer mechanism, the lifting transfer mechanism is used for transferring raw coal in two adjacent layers of tunnel structures, each layer of tunnel structure comprises at least one treatment section, and the treatment section is a first heating section, a second heating section, a cooling section or a coke quenching section. Optionally, the dry distillation system further comprises a porous medium burner arranged in the second heating section, the dry distillation system further comprises a combustion-supporting device, the combustion-supporting device is used for inputting combustion-supporting gas into the second heating section, and the volume fraction of oxygen in the combus