Organic solid waste low-temperature pyrolysis biochar preparation integrated device

Abstract

The utility model discloses an organic solid waste low-temperature pyrolysis biochar preparation integrated device which comprises a support, a vertical tower is fixedly connected to the support, an annular electric heating tube set is fixedly installed on the inner wall of the vertical tower, a driving part is fixedly installed in the vertical tower, a conical filter cartridge is fixedly installed on the outer side of the driving part, and a conical filter element is fixedly installed on the outer side of the conical filter cartridge. And the outer side of the conical filter cartridge is fixedly connected with an outer auger sheet. The conical filter cartridge is driven by the driving part to rotate, so that the outer auger sheet is matched with the inner auger sheet to realize uniform conveying and synchronous pyrolysis of materials, pyrolysis products are filtered and separated through the conical filter cartridge in the conveying process, and separated waste residues are compressed, molded and discharged through the compression part at the bottom; therefore, the device has the advantages that the effective filtering area is increased, the filtering efficiency is improved, the compression degree of materials is reduced in the conveying process, and the separation success rate is improved.

Description

Technical Field

[0001] The utility model relates to the field of organic solid waste treatment, and more specifically, to an integrated device for preparing biochar by low-temperature pyrolysis of organic solid waste. Background Art

[0002] After drying and extrusion molding, straw and other organic waste can effectively solve the problem of low stacking density that restricts its large-scale utilization; in addition, since straw and other organic waste have a relatively loose structure and high volatile matter that is easy to precipitate, their combustion process is extremely unstable. After crushing, drying and extrusion molding, this problem has also been well solved.

[0003] Organic matter molding devices directly compress and mold organic waste, but organic matter is of various types and complex in composition. In order to extrude and mold it, complex pretreatment is often required, which greatly increases the utilization cost of organic waste.

[0004] For example, application number 202110364278.7 discloses an integrated device for preparing organic solid waste molding and low-temperature pyrolysis biochar (57) Abstract An integrated device for preparing organic solid waste molding and low-temperature pyrolysis biochar belongs to the field of low-temperature pyrolysis extrusion molding, specifically: a driving motor is connected to a reducer, a driving shaft extends from the left end of the reducer, the driving shaft is connected to an equal-diameter rotating shaft through a coupling, and a variable-diameter rotating shaft is connected to the left end of the equal-diameter rotating shaft. The two are a whole and different spiral blades are arranged on the surface; a feed inlet and a water vapor outlet are arranged on the top of the metal cylinder, and a pyrolysis product outlet is arranged on the bottom; an adjustable temperature heating element is wrapped around the outside of the metal cylinder, and the outside of the adjustable temperature heating element is an insulation box; a flange is installed on the left end of the metal cylinder. This device prepares high calorific value biomass carbon through low-temperature pyrolysis, extrusion molding and other processes, and the heating temperature of the heating element can be adjusted according to different types of organic waste. It has a wide range of application scenarios and is not affected by the type of organic waste. The prepared biochar fuel has the characteristics of high calorific value, good ignition performance and stable combustion.

[0005] However, after the existing equipment is pushed into extrusion and pyrolysis, the filtering surface of the filtering separation zone is relatively small and the separation efficiency is low. In addition, since the material is always kept in a state of gradual extrusion and advancement, the filtering effect of the filtering surface is further worse, the separation effect of the solidified material is poor, and the separation and utilization effect is poor. Utility Model Content

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide an integrated device for preparing biochar by low-temperature pyrolysis of organic solid waste.

[0007] To solve the above problems, the utility model adopts the following technical solutions.

[0008] An integrated device for preparing biochar by low-temperature pyrolysis of organic solid waste comprises a bracket, a vertical tower is fixedly connected to the bracket, an annular electric heating pipe group is fixedly installed on the inner wall of the vertical tower, a driving member is fixedly installed inside the vertical tower, a conical filter cartridge is fixedly installed on the outer side of the driving member, an outer auger piece is fixedly connected to the outer side of the conical filter cartridge, an inner auger piece that cooperates with the outer auger piece is fixedly connected to the inner wall of the vertical tower, a compression member is installed at the bottom end of the driving member, the top of the compression member is fixedly connected and cooperates with the conical filter cartridge, the bottom of the vertical tower is provided with discharge forming holes arranged at equal distances, the top of the discharge forming holes is communicated with the interior of the vertical tower, and a discharge barrel communicated with the interior of the compression member is fixedly installed at the bottom of the vertical tower.

[0009] As a further description of the above technical solution: the driving member includes a reduction motor and a transmission rod, the reduction motor is fixedly installed on the top of the vertical tower, the output end of the reduction motor is plugged into the interior of the vertical tower, the output end of the reduction motor is fixedly connected to the transmission rod through a coupling, and the bottom end of the transmission rod is connected and cooperated with the internal part of the compression member.

[0010] As a further description of the above technical solution: the compression part includes a conical extrusion cylinder and an externally threaded spinning disk, the bottom end of the conical extrusion cylinder is rotatably connected to the inside of the vertical tower, the bottom end of the conical extrusion cylinder is connected to the discharge cylinder, the outer side of the transmission rod is fixedly connected to the inside of the conical extrusion cylinder, and the top of the conical extrusion cylinder is fixedly connected to the bottom end of the conical filter cylinder.

[0011] As a further description of the above technical solution: the opposite section of the conical filter cylinder and the conical extrusion cylinder is a conical opening end.

[0012] As a further description of the above technical solution: a closed door is hinged on the front of the discharge barrel.

[0013] As a further description of the above technical solution: a feed hopper is fixedly connected to the top of the vertical tower, and a cover is hinged on the top of the feed hopper.

[0014] As a further description of the above technical solution: a water vapor exhaust pipe is fixedly connected to the top of the vertical tower.

[0015] As a further description of the above technical solution: a plurality of heating wires are fixedly connected inside the inner auger piece.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] This solution uses a driving member to drive the conical filter barrel to rotate, so that the outer auger piece cooperates with the inner auger piece to achieve uniform transportation and synchronous pyrolysis of the material. The pyrolysis product is filtered and separated by the conical filter barrel during the transportation process, and the separated waste residue is compressed and formed by the compression member at the bottom for discharge. The device has the advantages of increasing the effective filtration area, improving the filtration efficiency, and ensuring that the compression degree of the material is reduced during the transportation process, thereby improving the separation success rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model;

[0020] Figure 3 It is a partial three-dimensional structural schematic diagram of the utility model;

[0021] Figure 4 It is a schematic diagram of the top cross-sectional structure of the utility model.

[0022] Description of the numbers in the figure:

[0023] 1. Bracket; 2. Vertical tower; 21. Feed hopper; 22. Sealing cover; 3. Annular electric heating tube group; 4. Driving part; 41. Speed ​​reducer motor; 42. Transmission rod; 5. Conical filter cartridge; 6. External auger piece; 7. Internal auger piece; 71. Heating wire; 8. Compression piece; 81. Conical extrusion cylinder; 82. External threaded spinning plate; 9. Discharge forming hole; 10. Discharge cylinder; 101. Closing door; 11. Steam exhaust pipe. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention;

[0025] See also Figures 1 to 4 In the utility model, an integrated device for preparing biochar by low-temperature pyrolysis of organic solid waste includes a bracket 1, a vertical tower 2 is fixedly connected to the bracket 1, an annular electric heating pipe group 3 is fixedly installed on the inner wall of the vertical tower 2, a driving member 4 is fixedly installed inside the vertical tower 2, a conical filter cartridge 5 is fixedly installed on the outer side of the driving member 4, an outer auger piece 6 is fixedly connected to the outer side of the conical filter cartridge 5, an inner auger piece 7 that cooperates with the outer auger piece 6 is fixedly connected to the inner wall of the vertical tower 2, a compression member 8 is installed at the bottom end of the driving member 4, the top of the compression member 8 is fixedly connected and cooperated with the conical filter cartridge 5, the bottom of the vertical tower 2 is provided with discharge forming holes 9 arranged at equal distances, the top of the discharge forming holes 9 is communicated with the interior of the vertical tower 2, and a discharge barrel 10 that communicates with the interior of the compression member 8 is fixedly installed at the bottom of the vertical tower 2.

[0026] In the utility model, the bracket 1 is used as the main body of the device. When in use, the driving member 4 is first started to drive the conical filter cylinder 5 and the compression member 8 to rotate, and then the material is added through the top of the vertical tower 2. After the material enters the vertical tower 2, the annular electric heating pipe group 3 is started to heat the material to achieve pyrolysis. The material is driven by the rotating outer auger piece 6 to gradually descend, and the inner auger piece 7 is used to divide the material to avoid excessive pressure during transportation, so that the material descends in equal amounts and is pyrolyzed synchronously while descending. The pyrolysis product is collected through the conical filter cylinder 5 during transportation, and the solid slag goes down into the compression of the compression member 8. The material is squeezed into a contraction area, and then extruded and formed, and finally discharged through the discharge forming hole 9, while the pyrolysis product is collected by the discharge barrel 10, realizing efficient and stable separation, thereby realizing that the device has the advantages of increasing the effective filtration area, improving the filtration efficiency, and ensuring that the compression degree of the material is reduced during the transportation process, thereby improving the separation success rate. The problem in the prior art that after the extrusion and pyrolysis are pushed forward, the filtration surface of the filtration separation zone is relatively small, the separation efficiency is low, and because the material always maintains a state of gradual extrusion and advancement, the filtration effect of the filtration surface is even worse, the separation effect of the solidified material is poor, and the separation utilization effect is poor.

[0027] See also Figure 2 , wherein: the driving member 4 includes a reduction motor 41 and a transmission rod 42, the reduction motor 41 is fixedly installed on the top of the vertical tower 2, the output end of the reduction motor 41 is plugged into the interior of the vertical tower 2, the output end of the reduction motor 41 is fixedly connected to the transmission rod 42 through a coupling, and the bottom end of the transmission rod 42 is connected and matched with the interior of the compression member 8.

[0028] In the utility model, the transmission rod 42 is driven to rotate by starting the reduction motor 41, and the transmission rod 42 drives the conical filter cylinder 5 and the compression member 8 to rotate synchronously, so as to realize the integrated operation of driving the material to be transported downward and thermally decomposed, separated and compressed.

[0029] See also Figure 2 and Figure 3 , wherein: the compression member 8 includes a conical extrusion cylinder 81 and an externally threaded spinning disk 82, the bottom end of the conical extrusion cylinder 81 is rotatably connected to the inside of the vertical tower 2, the bottom end of the conical extrusion cylinder 81 is connected to the discharge cylinder 10, the outer side of the transmission rod 42 is fixedly connected to the inside of the conical extrusion cylinder 81, and the top of the conical extrusion cylinder 81 is fixedly connected to the bottom end of the conical filter cylinder 5.

[0030] In the present invention, the transmission rod 42 drives the conical extrusion cylinder 81 to rotate, thereby driving the external thread spinning disk 82 to rotate, spinning and conveying the material downward, realizing pressure molding and output through the discharge molding hole 9.

[0031] See also Figure 2 , wherein: the opposite section of the conical filter cylinder 5 and the conical extrusion cylinder 81 is a conical opening end.

[0032] In the utility model, the opposite section of the conical filter cylinder 5 and the conical extrusion cylinder 81 is a conical opening end, so that the upper material descends more slowly as it goes down, and is subjected to primary compression when entering the conical extrusion cylinder 81 area, and then is compressed again by the conical extrusion cylinder 81 to form the discharge material, thereby ensuring the forming effect.

[0033] See also Figure 1 , wherein: a closed door 101 is hinged on the front of the discharge barrel 10.

[0034] In the utility model, the discharge barrel 10 is conveniently opened through the closed door 101 to collect the pyrolysis material.

[0035] See also Figure 1 and Figure 2 , wherein: a feed hopper 21 is fixedly connected to the top of the vertical tower 2, and a cover 22 is hingedly connected to the top of the feed hopper 21.

[0036] In the utility model, the feed hopper 21 cooperates with the sealing cover 22 to facilitate opening and closing of the feed and discharge channels.

[0037] See also Figure 1 and Figure 2 , wherein: a water vapor exhaust pipe 11 is fixedly connected to the top of the vertical tower 2.

[0038] In the utility model, the water vapor evaporated by heating is discharged smoothly through the water vapor exhaust pipe 11 .

[0039] See also Figure 2 , wherein: a plurality of electric heating wires 71 are fixedly connected inside the inner auger piece 7 .

[0040] In the utility model, the inner auger piece 7 is heated by the electric heating wire 71 to achieve efficient pyrolysis of the material.

[0041] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. An integrated device for preparing biochar by low-temperature pyrolysis of organic solid waste, comprising a support (1), characterized in that: The bracket (1) is fixedly connected to a vertical tower (2), an annular electric heating tube group (3) is fixedly mounted on the inner wall of the vertical tower (2), a driving member (4) is fixedly mounted inside the vertical tower (2), a conical filter cartridge (5) is fixedly mounted on the outer side of the driving member (4), an outer auger piece (6) is fixedly connected to the outer side of the conical filter cartridge (5), an inner auger piece (7) that cooperates with the outer auger piece (6) is fixedly connected to the inner wall of the vertical tower (2), a compression member (8) is mounted at the bottom end of the driving member (4), the top of the compression member (8) is fixedly connected and cooperates with the conical filter cartridge (5), the bottom of the vertical tower (2) is provided with discharge forming holes (9) arranged at equal distances, the top of the discharge forming holes (9) is connected to the inside of the vertical tower (2), and a discharge barrel (10) that communicates with the inside of the compression member (8) is fixedly mounted at the bottom of the vertical tower (2).

2. The integrated device for preparing biochar by low-temperature pyrolysis of organic solid waste according to claim 1, characterized in that: The driving member (4) comprises a reduction motor (41) and a transmission rod (42); the reduction motor (41) is fixedly mounted on the top of the vertical tower (2); the output end of the reduction motor (41) is plugged into the interior of the vertical tower (2); the output end of the reduction motor (41) is fixedly connected to the transmission rod (42) via a coupling; the bottom end of the transmission rod (42) is connected and matched with the interior of the compression member (8).

3. The integrated device for preparing biochar by low-temperature pyrolysis of organic solid waste according to claim 2, characterized in that: The compression member (8) comprises a conical extrusion cylinder (81) and an externally threaded rotary pressing disk (82); the bottom end of the conical extrusion cylinder (81) is rotatably connected to the inside of the vertical tower (2); the bottom end of the conical extrusion cylinder (81) is connected to the discharge cylinder (10); the outer side of the transmission rod (42) is fixedly connected to the inside of the conical extrusion cylinder (81); and the top of the conical extrusion cylinder (81) is fixedly connected to the bottom end of the conical filter cylinder (5).

4. The integrated device for preparing biochar by low-temperature pyrolysis of organic solid waste according to claim 3, characterized in that: The opposite section of the conical filter cylinder (5) and the conical extrusion cylinder (81) is a conical opening end.

5. The integrated device for preparing biochar by low-temperature pyrolysis of organic solid waste according to claim 1, characterized in that: A closed door (101) is hingedly connected to the front of the discharge cylinder (10).

6. The integrated device for preparing biochar by low-temperature pyrolysis of organic solid waste according to claim 1, characterized in that: A feed hopper (21) is fixedly connected to the top of the vertical tower (2), and a cover (22) is hingedly connected to the top of the feed hopper (21).

7. The integrated device for preparing biochar by low-temperature pyrolysis of organic solid waste according to claim 1, characterized in that: A water vapor exhaust pipe (11) is fixedly connected to the top of the vertical tower (2).

8. The integrated device for preparing biochar by low-temperature pyrolysis of organic solid waste according to claim 1, characterized in that: A plurality of electric heating wires (71) are fixedly connected inside the inner auger piece (7).

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