Recovery and regeneration device for biomass hard carbon precursor

Abstract

The utility model provides a recycling and regenerating device for a biomass hard carbon precursor. The recycling and regenerating device comprises a shell, a material guide plate, a combustion tube unit, an air inlet unit, a swinging unit and a collecting unit, a pyrolysis chamber is arranged in the shell; the material guide plate is obliquely arranged in the pyrolysis chamber, and the material guide plate is used for receiving materials output from the feeding hole; the combustion tube unit is arranged in the shell in a penetrating manner, the combustion tube unit comprises a coiled tube and a straight tube, the fall of adjacent bent parts on the coiled tube is consistent with the inclination angle of the material guide plate, the bent parts are adjacent to the inclined surface of the material guide plate, and the combustion tube unit heats the pyrolysis chamber; the air inlet unit is arranged on one side outside the shell and outputs fuel gas and air to the combustion tube unit; the swinging unit is arranged on the same side outside the shell and drives the combustion tube unit to swing, and the materials on the material guide plate are stirred; and the collecting unit is arranged outside the shell and is used for collecting products obtained after the materials are pyrolyzed.

Description

Technical Field

[0001] The utility model relates to the field of biomass pyrolysis, in particular to a recovery and regeneration device for a biomass hard carbon precursor. Background Art

[0002] With the continuous growth of energy demand and the increasing awareness of environmental protection, the development of sustainable and renewable energy storage materials has become crucial. In the production and use of lithium batteries, waste or aged biomass hard carbon precursors will be generated. Recycling and regenerating these precursors can, on the one hand, reduce resource waste and reduce production costs; on the other hand, it can reduce the potential harm of waste to the environment, which meets the requirements of sustainable development.

[0003] A Chinese utility model with application number CN201810794192.6 discloses a continuous biomass rapid pyrolysis device, a combustion tube is horizontally installed in the pyrolysis reaction chamber, the right end of the combustion tube extends out of the pyrolysis reaction chamber and an air inlet and a gas inlet are arranged at the right end, the left end of the combustion tube extends out of the pyrolysis reaction chamber and is connected to the pyrolysis reaction chamber through a circulation pipe, a straight hole distribution plate is arranged in the pyrolysis reaction chamber, a feeder is connected to the feed port, a blower is connected to the air inlet, a gas bottle is connected to the gas inlet, a storage tank is connected to the discharge port, a condensate collecting tank is connected to the air outlet through an oil collecting pipe, and an exhaust fan is connected to the condensate collecting tank through an exhaust pipe. The inclined straight hole distribution plate, the combustion tube, the air supply unit and the air supply unit are combined, and the gas after the combustion of natural gas and air is used as a carrier gas for fluidization.

[0004] However, the inventors found that the device has the following problems: 1. The inclined straight hole distribution plate cannot be close to the combustion tube arranged horizontally above it, which reduces the heating efficiency; 2. The material falls into the inclined straight hole distribution plate from the feed port and is prone to pile up, which is not conducive to the pyrolysis reaction. Utility Model Content

[0005] The purpose of the utility model is to address the shortcomings of the prior art and provide a recovery and regeneration device for a biomass hard carbon precursor, comprising a shell, a material guide plate, a combustion tube unit, an air intake unit, a swing unit, and a collection unit. The combustion tube unit heats the pyrolysis chamber. The combustion tube unit comprises a serpentine tube and a straight tube. The height difference between adjacent bent portions on the serpentine tube is consistent with the inclination angle of the material guide plate, and the bent portions are adjacent to the inclined surface of the material guide plate.

[0006] In view of the above technical problems, the technical solution adopted by the utility model is as follows: a recovery and regeneration device for biomass hard carbon precursors, comprising a shell, a guide plate, a combustion tube unit, an air intake unit, a swing unit, and a collection unit; a pyrolysis chamber is arranged inside the shell, a feed port is arranged at the top of the shell, and a discharge port is arranged on one side of the shell; the guide plate is obliquely arranged in the pyrolysis chamber, the upper end portion of the guide plate is obliquely arranged below the feed port, and the lower end portion of the guide plate is obliquely arranged at the discharge port, and the guide plate receives the material output from the feed port; the combustion tube unit is penetrated and arranged in the shell, and the combustion tube unit comprises a serpentine tube and a straight tube, and the serpentine tube and the straight tube are both located in the Above the guide plate, the height difference between adjacent bent portions on the serpentine tube is consistent with the inclination angle of the guide plate, the bent portion is adjacent to the inclined surface of the guide plate, the output end of the straight tube is connected to the input end of the serpentine tube, and the combustion tube unit heats the pyrolysis chamber; the air intake unit is arranged on the side of the shell body where the discharge port is opened, the air intake unit is connected to the input end of the combustion tube unit, and the air intake unit outputs gas and air to the combustion tube unit; the swing unit is arranged on the same side outside the shell body, the swing unit drives the combustion tube unit to swing, and shifts the material on the guide plate; the collecting unit is arranged outside the shell body, and the collecting unit collects the products after the pyrolysis of the material.

[0007] Preferably, a guide block is provided on the lower end of the guide plate, and a plurality of vent holes are arranged in an array on the guide plate.

[0008] As a preference, the bending portion at the bottom of the serpentine tube is arranged parallel to the inclination direction of the guide plate.

[0009] As a preference, both ends of the combustion tube unit are connected with a rotating sealing joint.

[0010] Preferably, the output end of the combustion tube unit is connected to a reflux pipe, and the output end of the reflux pipe is located below the guide plate and connected to the pyrolysis chamber.

[0011] Preferably, the air intake unit comprises a gas tank, a blower, an igniter, a valve and a tee; the gas tank and the blower are respectively connected to two interfaces of the tee, and the other interface of the tee is connected to the input end of the combustion tube unit; the igniter and the valve are installed at the air outlet of the gas tank.

[0012] As a preference, the swing unit further comprises a mounting frame, a driving member and a gear set; the mounting frame is fixedly arranged on the outside of the shell; the driving member is fixedly arranged on the mounting frame; the driving gear in the gear set is sleeved on the rotating shaft of the driving member, and the driven gear in the gear set is sleeved on the input end of the straight tube.

[0013] Preferably, the collecting unit comprises a storage tank, a connecting pipe, a condensing tank, a filter tube and an exhaust fan; the storage tank is arranged on one side of the shell, a collecting pipe is arranged on the top of the storage tank, and the collecting pipe is connected to the discharge port; the input end of the connecting pipe is connected to the pyrolysis chamber, the connection between the connecting pipe and the pyrolysis chamber is located above the discharge port, and the other end is connected to the condensing tank, the filter tube and the exhaust fan in sequence.

[0014] Beneficial effects of the utility model:

[0015] 1. By setting the height difference of the adjacent bending part on the serpentine tube to be consistent with the inclination angle of the guide plate, and the bending part is close to the inclined surface of the guide plate, the heat generated during combustion in the combustion tube unit is more directly transferred to the material on the guide plate, thereby accelerating the pyrolysis reaction of the material and improving the pyrolysis efficiency;

[0016] 2. By setting the bending part at the bottom of the serpentine tube parallel to the inclined direction of the guide plate, and cooperating with the swing unit, the serpentine tube can also move the material on the guide plate while heating the pyrolysis chamber, avoiding the accumulation of materials on the guide plate, making the materials heated more evenly, and further improving the pyrolysis efficiency;

[0017] 3. The guide block provided on the lower end of the guide plate allows the solid products after pyrolysis of the material to converge at the lower end of the guide plate, making it easier for the solid products to finally fall into the storage tank from the discharge port, thereby reducing the amount of solid products remaining in the pyrolysis chamber and contaminating subsequent pyrolysis reactions.

[0018] In summary, the equipment has the advantages of fast heat transfer and high pyrolysis efficiency, and is particularly suitable for the field of biomass pyrolysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a structural schematic diagram of a biomass hard carbon precursor recovery and regeneration device;

[0021] Figure 2 A partial view of a biomass hard carbon precursor recovery and regeneration device;

[0022] Figure 3 A partial view of a biomass hard carbon precursor recovery and regeneration device;

[0023] Figure 4 It is a structural schematic diagram of the guide plate;

[0024] Figure 5 Schematic diagram of the combustion tube unit Figure 1 ;

[0025] Figure 6 Schematic diagram of the combustion tube unit Figure 2 ;

[0026] Figure 7 for Figure 2 Schematic diagram of the structure at A in the middle.

[0027] The accompanying drawings are marked as follows: 1. Shell; 11. Pyrolysis chamber; 12. Feed inlet; 13. Discharge outlet; 2. Guide plate; 21. Guide block; 22. Vent; 3. Combustion tube unit; 31. Serpentine tube; 311. Bending portion; 32. Straight tube; 33. Rotating sealing joint; 34. Reflux pipe; 4. Inlet unit; 41. Gas tank; 42. Blower; 43. Ignitor; 44. Valve; 45. Three-way pipe; 5. Swing unit; 51. Mounting frame; 52. Driving member; 53. Gear set; 6. Collecting unit; 61. Storage tank; 62. Connecting pipe; 63. Condenser; 64. Filter tube; 65. Exhaust fan. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] Embodiment 1:

[0032] like Figures 1 to 7 As shown, a recycling and regeneration device for biomass hard carbon precursor includes a shell 1, and also includes: a guide plate 2, a combustion tube unit 3, an air intake unit 4, a swing unit 5, and a collection unit 6; a pyrolysis chamber 11 is arranged inside the shell 1, a feed port 12 is arranged on the top of the shell 1, and a discharge port 13 is arranged on one side of the shell 1; the guide plate 2 is obliquely arranged in the pyrolysis chamber 11, the upper end portion of the guide plate 2 is obliquely arranged below the feed port 12, and the lower end portion of the guide plate 2 is obliquely arranged at the discharge port 13, and the guide plate 2 receives the material output from the feed port 12; the combustion tube unit 3 is penetrated and arranged in the shell 1, and the combustion tube unit 3 includes a serpentine tube 31 and a straight tube 32, and the serpentine tube 31 and the straight tube 32 are both located on the guide plate 2 The height difference between adjacent bent portions 311 on the serpentine tube 31 is consistent with the inclination angle of the guide plate 2, the bent portion 311 is adjacent to the inclined surface of the guide plate 2, the output end of the straight tube 32 is connected to the input end of the serpentine tube 31, and the combustion tube unit 3 heats the pyrolysis chamber 11; the air intake unit 4 is arranged on the side of the shell 1 where the discharge port 13 is opened, the air intake unit 4 is connected to the input end of the combustion tube unit 3, and the air intake unit 4 outputs gas and air to the combustion tube unit 3; the swing unit 5 is arranged on the same side outside the shell 1, the swing unit 5 drives the combustion tube unit 3 to swing, and the material on the guide plate 2 is transferred; the collecting unit 6 is arranged outside the shell 1, and the collecting unit 6 collects the product after the pyrolysis of the material.

[0033] It should be noted here that Figure 5 As shown, the serpentine tube 31 is in the form of a main tube, and its input end is connected to the straight tube 32, so that the gas flow is smoother; Figure 6 As shown, the serpentine pipe 31 is in the form of a branch pipe, and its input end and output end are both connected to the straight pipe 32 to facilitate gas combustion.

[0034] It is worth mentioning here that by setting the height difference between the adjacent bending portion 311 on the serpentine tube 31 to be consistent with the inclination angle of the guide plate 2, and the bending portion 311 is close to the inclined surface of the guide plate 2, the heat generated during combustion in the combustion tube unit 3 is more directly transferred to the material on the guide plate 2, thereby accelerating the pyrolysis reaction of the material and improving the pyrolysis efficiency.

[0035] like Figure 2 , 4 As shown, a guide block 21 is provided on the lower end of the guide plate 2 , and a plurality of vent holes 22 are arranged in an array on the guide plate 2 .

[0036] It is worth mentioning here that the guide block 21 arranged on the lower end of the guide plate 2 allows the solid products after the pyrolysis of the material to gather at the lower end of the guide plate 2, so that the solid products can finally fall into the storage tank 61 from the discharge port 13, thereby reducing the solid products remaining in the pyrolysis chamber 11 and polluting the subsequent pyrolysis reaction.

[0037] It should be noted that the aperture of the vent hole 22 on the guide plate 2 in the figure is only a schematic diagram, and the actual aperture of the vent hole 22 is smaller than the particle size of the material and the solid product.

[0038] like Figure 2 , 5 As shown in Figures 6 and 7, the bending portion 311 at the bottom of the serpentine tube 31 is arranged parallel to the inclination direction of the guide plate 2.

[0039] It is worth mentioning here that the bending portion 311 at the bottom of the serpentine tube 31 is arranged parallel to the inclination direction of the guide plate 2, so that the serpentine tube 31 is closer to the material on the guide plate 2, which is convenient for heat transfer, and the serpentine tube 31 is arranged in a winding manner at the feed port 12 in the pyrolysis chamber 11, which improves the heating effect in the pyrolysis chamber 11 and makes the temperature distribution below the feed port 12 more uniform.

[0040] like Figure 1 , 7 As shown, both ends of the combustion tube unit 3 are connected with a rotating sealing joint 33.

[0041] It should be noted that the structure of the rotary sealing joint 33 is specifically described in the utility model patent with application number CN03231979.7, and the rubber sealing ring of the rotary sealing joint 33 is a high temperature resistant rubber sealing ring.

[0042] like Figure 1 , 3 As shown, the output end of the combustion tube unit 3 is connected to a return pipe 34 , and the output end of the return pipe 34 is located below the guide plate 2 and connected to the pyrolysis chamber 11 .

[0043] It is worth mentioning here that the gas generated after combustion in the combustion tube unit 3 is output from below the guide plate 2 into the pyrolysis chamber 11, passes through the vent holes 22 on the guide plate 2, and promotes the flow of materials and solid products, so that the materials are fully pyrolyzed and the solid products are more easily dropped on the inclined guide plate 2.

[0044] like Figure 1 , 2 As shown in Figure 3, the air intake unit 4 includes a gas tank 41, a blower 42, an igniter 43, a valve 44 and a three-way pipe 45; the gas tank 41 and the blower 42 are respectively connected to two interfaces of the three-way pipe 45, and the other interface of the three-way pipe 45 is connected to the input end of the combustion tube unit 3; the igniter 43 and the valve 44 are installed at the air outlet of the gas tank 41.

[0045] It is worth mentioning here that the output of the gas is controlled by manually controlling the valve 44 and adjusting it according to the amount of material in the pyrolysis chamber 11 during actual production to avoid excessive gas combustion to pyrolyze a small amount of material, thereby optimizing the economic cost and saving gas resources.

[0046] like Figure 1 , 2 As shown in Figures 7 and 8, the swing unit 5 also includes a mounting frame 51, a driving member 52 and a gear set 53; the mounting frame 51 is fixedly arranged on the outside of the shell; the driving member 52 is fixedly arranged on the mounting frame 51; the driving gear in the gear set 53 is sleeved on the rotating shaft of the driving member 52, and the driven gear in the gear set 53 is sleeved on the input end of the straight pipe 32.

[0047] It is worth mentioning here that the swing unit 5 is provided to drive the combustion tube unit 3 to swing, so that the serpentine tube 31 can heat the pyrolysis chamber 11 while also moving the material on the guide plate 2 to avoid accumulation of the material on the guide plate, so that the material is heated more evenly, further improving the pyrolysis efficiency.

[0048] like Figure 1 , 2 As shown in Figure 3, the collecting unit 6 includes a storage tank 61, a connecting pipe 62, a condensing tank 63, a filter tube 64 and an exhaust fan 65; the storage tank 61 is arranged on one side of the shell 1, and a collecting pipe 611 is arranged on the top of the storage tank 61, and the collecting pipe 611 is connected to the discharge port 13; the input end of the connecting pipe 62 is connected to the pyrolysis chamber 11, and the connection between the connecting pipe 62 and the pyrolysis chamber 11 is located above the discharge port 13, and the other end is connected to the condensing tank 63, the filter tube 64 and the exhaust fan 65 in sequence.

[0049] It should be noted that the gaseous product after the pyrolysis of the material is extracted by the exhaust fan 65 through the connecting pipe 62, and first enters the condensation tank 63 in sequence to condense and collect the biofuel in the gaseous product, and the remaining gas is filtered through the filter tube 64 and then discharged to avoid air pollution.

[0050] The working process is as follows:

[0051] The valve is opened, and the gas is ignited by the igniter. The gas is driven by the blower 42 to enter the combustion tube unit 3 to preheat the pyrolysis chamber 11. After the preheating is completed, the material is output from the feed port 12 into the pyrolysis chamber and falls onto the guide plate 2. The driving member 52 is started, and the combustion tube unit 3 is driven to swing through the gear set 53. The bent portion 311 of the serpentine tube 31 contacts the material on the guide plate 2 to shift the material. The gas generated by the combustion of the gas and air in the combustion tube unit 3 is driven by the blower to enter the pyrolysis chamber 11 through the reflux pipe 34, and passes through the vent hole 22 from the bottom of the guide plate 2 to push the material and solid products to flow. The solid products finally converge and fall into the storage tank 61. The gas product after the pyrolysis of the material is extracted by the exhaust fan 65 through the connecting pipe 62, and first enters the condensation tank 63 in turn. The condensation tank 63 condenses and collects the biofuel in the gas product, and the remaining gas is filtered by the filter tube 64 and then discharged.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A biomass hard carbon precursor recovery and regeneration device, comprising a housing (1), characterized in that: Also includes: A material guide plate (2), a combustion tube unit (3), an air intake unit (4), a swing unit (5), and a collection unit (6); A pyrolysis chamber (11) is provided inside the shell (1), a feed inlet (12) is provided at the top of the shell (1), and a discharge outlet (13) is provided on one side of the shell (1); The guide plate (2) is arranged obliquely in the pyrolysis chamber (11); the upper end of the guide plate (2) is located below the feed port (12); the lower end of the guide plate (2) is located at the discharge port (13); the guide plate (2) receives the material discharged from the feed port (12); The combustion tube unit (3) is penetrated and arranged in the shell (1), and comprises a serpentine tube (31) and a straight tube (32). The serpentine tube (31) and the straight tube (32) are both located above the material guide plate (2). The height difference between adjacent bent portions (311) on the serpentine tube (31) is consistent with the inclination angle of the material guide plate (2). The bent portion (311) is adjacent to the inclined surface of the material guide plate (2). The output end of the straight tube (32) is connected to the input end of the serpentine tube (31). The combustion tube unit (3) heats the pyrolysis chamber (11); The air intake unit (4) is arranged on a side of the shell (1) where the discharge port (13) is opened, and the air intake unit (4) is connected to the input end of the combustion tube unit (3), and the air intake unit (4) outputs gas and air to the combustion tube unit (3); The swing unit (5) is arranged on the same side outside the shell (1), and the swing unit (5) drives the combustion tube unit (3) to swing, thereby shifting the material on the guide plate (2); The collecting unit (6) is arranged outside the shell (1), and the collecting unit (6) collects products after the material is pyrolyzed.

2. The biomass hard carbon precursor recovery and regeneration device according to claim 1, characterized in that: A guide block (21) is provided on the lower end of the guide plate (2), and a plurality of vent holes (22) are arranged in an array on the guide plate (2).

3. The biomass hard carbon precursor recovery and regeneration device according to claim 1, characterized in that: The bent portion (311) at the bottom of the serpentine tube (31) is arranged parallel to the inclination direction of the material guide plate (2).

4. The biomass hard carbon precursor recovery and regeneration device according to claim 1, characterized in that: Both ends of the combustion tube unit (3) are connected with a rotating sealing joint (33).

5. The biomass hard carbon precursor recovery and regeneration device according to claim 1, characterized in that: The output end of the combustion tube unit (3) is connected to a return pipe (34), and the output end of the return pipe (34) is located below the material guide plate (2) and connected to the pyrolysis chamber (11).

6. The biomass hard carbon precursor recovery and regeneration device according to claim 1, characterized in that: The air intake unit (4) comprises a gas tank (41), a blower (42), an igniter (43), a valve (44) and a three-way pipe (45); The gas tank (41) and the blower (42) are respectively connected to two interfaces of the three-way pipe (45), and the other interface of the three-way pipe (45) is connected to the input end of the combustion tube unit (3); The igniter (43) and the valve (44) are installed at the gas outlet of the gas tank (41).

7. The biomass hard carbon precursor recovery and regeneration device according to claim 1, characterized in that: The swing unit (5) further comprises a mounting frame (51), a driving member (52) and a gear set (53); The mounting frame (51) is fixedly arranged outside the housing; The driving member (52) is fixedly mounted on the mounting frame (51); The driving gear in the gear set (53) is sleeved on the rotating shaft of the driving member (52), and the driven gear in the gear set (53) is sleeved on the input end of the straight tube (32).

8. The biomass hard carbon precursor recovery and regeneration device according to claim 1, characterized in that: The collecting unit (6) comprises a storage tank (61), a connecting pipe (62), a condensing tank (63), a filtering pipe (64) and an exhaust fan (65); The material storage tank (61) is arranged on one side of the shell (1), and a collecting pipe (611) is arranged on the top of the material storage tank (61), and the collecting pipe (611) is connected to the material outlet (13); The input end of the connecting pipe (62) is connected to the pyrolysis chamber (11), the connection between the connecting pipe (62) and the pyrolysis chamber (11) is located above the discharge port (13), and the other end is connected in sequence to the condensation tank (63), the filter pipe (64) and the exhaust fan (65).

Images