Straw particle dust removal structure for biochar production

Abstract

The utility model discloses a straw particle dedusting structure for charcoal production, which comprises a dedusting tank, the inner wall of the dedusting tank is fixedly sleeved with a conical filter plate, the inner side surface of the conical filter plate is provided with filter holes distributed in an annular array, the inner wall of the conical filter plate is fixedly sleeved with a backflow bottom plate, and the upper surface of the backflow bottom plate is fixedly connected with a circulating pipe. The lower surface of the backflow bottom plate fixedly communicates with a discharging pipe, one end of the discharging pipe penetrates through and extends to the lower surface of the dust removal tank, the circulating motion device achieves the effect of driving straw particles to do reciprocating lifting circulating motion, dust particles doped in the straw particles are screened out through filter holes through motion of the straw particles, and the dust removal efficiency is improved. And fine dust of the straw particles drifts away in the dust removal tank through movement of the straw particles, so that the fine dust is conveniently and uniformly collected and treated by the dust collection hopper, efficient dust removal is achieved, and damage to health of workers caused by flying of the dust is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of crop straw recycling, in particular to a straw particle dust removal structure for biochar production. Background Art

[0002] Biochar refers to the carbon-rich product formed by the pyrolysis of biomass such as agricultural and forestry waste under hypoxia and certain temperature conditions, which can turn agricultural waste such as straw into treasure. Biochar has excellent adsorption and buffering capacity and fertilizer and water retention properties, which can effectively improve soil structure, increase fertility, and solve soil degradation problems, thereby achieving a virtuous cycle of agricultural production. At present, after straw is formed into pellets by a pellet forming machine, it is mixed with a lot of dust, which needs to be removed.

[0003] For example, a straw particle dust removal structure for biochar production disclosed in a Chinese patent document (Announcement No.: CN215613120U) uses a vibration motor end to drive the processing box to shake, so that the dust in the straw material is separated from the solid particles. By setting filter holes, after the dust in the straw material is separated from the solid particles, the dust and fine solid particles will enter the interior of the fixed groove through the filter holes, thereby achieving the dust removal effect. When the straw material inside the processing box is pushed out by the push plate, the straw material will be collected by the slide plate. In the process of the straw material sliding down, the fan is started, and the fine dust of the straw material is separated by the airflow generated by the fan, while the solid particles continue to fall under the action of gravity without being affected by the wind, thereby improving the dust removal effect.

[0004] However, it is only suitable for dust removal of a small amount of straw materials at a time. When there are more straw materials in the processing box, the straw materials are piled up on each other, which makes it difficult for the dust in the upper straw materials to fall to the bottom of the processing box through vibration and be sieved and removed from the filter holes, thereby reducing the dust removal efficiency of the straw. In addition, when the fan is used to process the subsequent fine dust, although it can remove the dust, it will cause the dust to diffuse and cannot be processed, which greatly endangers the health of the staff. Utility Model Content

[0005] In view of the defects in the prior art, the utility model provides a straw particle dust removal structure for biochar production, which drives the straw particles to perform reciprocating lifting and lowering circulation movements, so that the dust particles mixed inside the straw particles are screened out through the filter holes through the movement of the straw particles, and the fine dust is dispersed in the dust removal tank through the movement of the straw particles, so that the dust hopper can collect and process the fine dust in a unified manner, which not only realizes efficient dust removal, but also avoids the damage of flying dust to the health of workers.

[0006] The utility model proposes a straw particle dust removal structure for biochar production, comprising a dust removal tank, the inner wall of the dust removal tank is fixedly sleeved with a conical filter plate, the inner side surface of the conical filter plate is provided with filter holes distributed in a ring array, the inner wall of the conical filter plate is fixedly sleeved with a reflux bottom plate, the upper surface of the reflux bottom plate is fixedly connected with a circulation pipe, the lower surface of the reflux bottom plate is fixedly connected with a discharge pipe, one end of the discharge pipe penetrates and extends to the lower surface of the dust removal tank, and the outer surface of the lower end of the circulation pipe is provided with reflux grooves distributed in a ring array;

[0007] The outer surface of the upper end of the circulation pipe is provided with a circulation device, and the circulation device comprises an annular inclined flow divider plate, and the inner wall of the annular inclined flow divider plate is fixedly sleeved with the outer surface of the upper end of the circulation pipe.

[0008] Preferably, the upper surface of the dust removal tank is fixedly connected to a feed hopper, a servo motor is fixedly mounted on the upper surface of the dust removal tank, and a rotating shaft is fixedly mounted on the output shaft of the servo motor via a coupling.

[0009] Preferably, one end of the rotating shaft passes through the dust removal tank and extends to the interior of the circulation pipe, a spiral sheet is fixedly sleeved on the outer surface of the rotating shaft, the outer surface of the spiral sheet contacts the inner wall of the circulation pipe, and an annular mounting block is fixedly sleeved on the outer surface of the dust removal tank.

[0010] Preferably, the inner surface of the annular mounting block is fixedly connected to dust suction pipes distributed in an annular array, one ends of a plurality of the dust suction pipes pass through and extend to the interior of the dust removal tank, and one end of the dust suction pipes is fixedly connected to a dust hopper.

[0011] Preferably, a screen is fixedly sleeved on the inner wall of the dust hopper, and support columns distributed in a circular array are fixedly connected to the lower surface of the dust removal tank, and the lower surfaces of multiple support columns are fixedly connected to bases.

[0012] Preferably, a filter box is fixedly mounted on the upper surface of the base, a connecting pipe is fixedly connected to one side surface of the filter box, one end of the connecting pipe is fixedly connected to the lower surface of the annular mounting block, and an air pump is fixedly mounted on the upper surface of the base.

[0013] Preferably, one end of the vacuum pump is fixedly connected to an exhaust pipe, one end of the exhaust pipe is fixedly connected to the other side surface of the filter box, and the outer surface of the dust removal tank is hinged with a sealing door via a hinge.

[0014] The beneficial effects of the utility model are embodied in:

[0015] By setting up a circulating motion device, the straw particles can be driven to perform reciprocating lifting and lowering circulating motion. The movement of the straw particles allows the dust particles mixed inside to be screened out through the filter holes, and the movement of the straw particles causes the fine dust to float in the dust removal tank, making it convenient for the dust hopper to uniformly collect and process the fine dust, which not only achieves efficient dust removal, but also avoids the damage to the health of workers caused by flying dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0017] Figure 1 A front view of a straw particle dust removal structure for biochar production provided by the utility model;

[0018] Figure 2 for Figure 1 A three-dimensional diagram of the dust removal tank structure of a straw particle dust removal structure for biochar production;

[0019] Figure 3 for Figure 1 A three-dimensional diagram of a circulation pipe structure of a straw particle dust removal structure for biochar production;

[0020] Figure 4 for Figure 1 A stereoscopic view of a conical filter plate structure of a straw particle dust removal structure for biochar production;

[0021] Figure 5 for Figure 1 A three-dimensional diagram of the annular mounting block structure of a straw particle dust removal structure for biochar production is shown.

[0022] In the attached drawings, 1. dust removal tank; 2. conical filter plate; 3. filter hole; 4. reflux bottom plate; 5. circulation pipe; 6. discharge pipe; 7. reflux trough; 8. annular inclined plane diverter plate; 81. feed hopper; 82. servo motor; 83. rotating shaft; 84. spiral blade; 85. annular mounting block; 86. dust suction pipe; 87. dust suction hopper; 88. screen; 89. support column; 810. base; 811. filter box; 812. connecting pipe; 813. vacuum pump; 814. vacuum pipe; 815. sealing door. DETAILED DESCRIPTION

[0023] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0024] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0025] Reference Figure 1-5 A straw particle dust removal structure for biochar production comprises a dust removal tank 1, a conical filter plate 2 is fixedly sleeved on the inner wall of the dust removal tank 1, filter holes 3 distributed in a ring array are provided on the inner surface of the conical filter plate 2, a reflux bottom plate 4 is fixedly sleeved on the inner wall of the conical filter plate 2, a circulation pipe 5 is fixedly connected to the upper surface of the reflux bottom plate 4, a discharge pipe 6 is fixedly connected to the lower surface of the reflux bottom plate 4, a solenoid valve is provided on the outer surface of the discharge pipe 6 for controlling the discharge, one end of the discharge pipe 6 penetrates and extends to the lower surface of the dust removal tank 1, and a reflux groove 7 distributed in a ring array is provided on the outer surface of the lower end of the circulation pipe 5;

[0026] The outer surface of the upper end of the circulation pipe 5 is provided with a circulation device, and the circulation device includes an annular inclined flow divider plate 8 , and the inner wall of the annular inclined flow divider plate 8 is fixedly sleeved with the outer surface of the upper end of the circulation pipe 5 .

[0027] The upper surface of the dust removal tank 1 is fixedly connected to a feed hopper 81, and a servo motor 82 is fixedly installed on the upper surface of the dust removal tank 1. The output shaft of the servo motor 82 is fixedly installed with a rotating shaft 83 through a coupling. One end of the rotating shaft 83 passes through the dust removal tank 1 and extends to the interior of the circulation pipe 5. The outer surface of the rotating shaft 83 is fixedly sleeved with a spiral piece 84, and the outer surface of the spiral piece 84 contacts the inner wall of the circulation pipe 5. The servo motor 82 drives the spiral piece 84 to rotate through the rotating shaft 83. The rotation of the spiral piece 84 serves to reciprocate and lift the straw material at the bottom through the circulation pipe 5. The outer surface of the dust removal tank 1 is fixedly sleeved with an annular mounting block 85, and the inner surface of the annular mounting block 85 is fixedly connected to dust suction pipes 86 distributed in a circular array. One end of the multiple dust suction pipes 86 all pass through and extend to the interior of the dust removal tank 1, and one end of the dust suction pipe 86 is fixedly connected to a dust suction hopper 87.

[0028] The inner wall of the dust hopper 87 is fixedly sleeved with a screen 88, and the upper end of the dust hopper 87 is inclined, so that it is convenient to cooperate with the screen 88 to block the straw particles and make them fall through the inclined surface. The lower surface of the dust removal tank 1 is fixedly connected with support columns 89 distributed in a circular array, and the lower surfaces of multiple support columns 89 are fixedly connected with bases 810. The upper surface of the base 810 is fixedly installed with a filter box 811. The filter box 811 is provided with a filter screen inside to intercept fine dust, so as to facilitate unified treatment. The filter box 811 A connecting pipe 812 is fixedly connected to the surface of one side, one end of the connecting pipe 812 is fixedly connected to the lower surface of the annular mounting block 85, an exhaust pump 813 is fixedly installed on the upper surface of the base 810, one end of the exhaust pump 813 is fixedly connected to an exhaust pipe 814, one end of the exhaust pipe 814 is fixedly connected to the other side surface of the filter box 811, and a sealing door 815 is hinged on the outer surface of the dust removal tank 1 through a hinge, and a handle is provided on the sealing door 815 to facilitate opening the sealing door 815 to clean the dust particles screened out at the bottom of the dust removal tank 1.

[0029] By setting up a circulating motion device, the straw particles are driven to perform reciprocating lifting and lowering circulating motion. The movement of the straw particles allows the dust particles mixed inside to be screened out through the filter holes 3, and the movement of the straw particles causes the fine dust to float in the dust removal tank 1, thereby facilitating the dust hopper 87 to uniformly collect and process the fine dust, which not only achieves efficient dust removal, but also avoids the harm of dust flying to the health of workers.

[0030] Working principle: Step 1, add the straw particles to be dusted into the dust removal tank 1 through the feed hopper 81, and the straw particles at the bottom are screened by the filter holes 3 on the conical filter screen to make the dust particles fall to the bottom of the dust removal tank 1, and then start the servo motor 82 to drive the rotating shaft 83 to rotate, and the rotating spiral piece 84 of the rotating shaft 83 rotates. Due to the inclined surface of the conical filter screen, the straw particles at the bottom pass through the reflux groove 7 and roll to the top of the reflux bottom plate 4, and then the rotation of the spiral piece 84 drives the straw particles to move upward;

[0031] Step 2, when the straw particles rise to the upper end of the circulation pipe 5, the straw particles are dispersed and dropped through the annular inclined plane diverter plate 8, so that the straw particles at the bottom layer are transported to the upper layer, so that the upper layer straw particles can be easily dropped to the lower layer for screening, and the fine dust on the surface of the straw particles is raised when the straw particles roll and fall. At this time, the air pump 813 is started to work, and the air pump 813 generates negative pressure inside the annular mounting block 85 through the cooperation of the air suction pipe 814 and the connecting pipe 812, so that the flying fine dust is absorbed through the cooperation of multiple dust suction pipes 86 and the dust suction hopper 87, and the straw particles are blocked by the screen 88 and slide down through the inclined surface of the dust suction hopper 87;

[0032] Step three, the dust is transported to the inside of the annular mounting block 85 through the dust hopper 87 and the dust pipe 86, and then transported to the filter box 811 through the connecting pipe 812. After the dust is intercepted and filtered by the filter box 811, the gas therein is discharged through the exhaust pipe 814 and the exhaust pump 813. After waiting for the dust removal to be completed, the solenoid valve is opened to allow the dust-removed straw particles to be discharged through the discharge pipe 6 and fall into a pre-prepared container. The filter screen in the filter box 811 can then be taken out for cleaning, and the granular dust screened out at the bottom of the dust removal tank 1 can be cleaned by opening the sealing door 815.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A straw particle dust removal structure for biochar production, comprising a dust removal tank (1), characterized in that: The inner wall of the dust removal tank (1) is fixedly sleeved with a conical filter plate (2), the inner surface of the conical filter plate (2) is provided with filter holes (3) distributed in a ring array, the inner wall of the conical filter plate (2) is fixedly sleeved with a reflux bottom plate (4), the upper surface of the reflux bottom plate (4) is fixedly connected with a circulation pipe (5), the lower surface of the reflux bottom plate (4) is fixedly connected with a discharge pipe (6), one end of the discharge pipe (6) passes through and extends to the lower surface of the dust removal tank (1), and the outer surface of the lower end of the circulation pipe (5) is provided with reflux grooves (7) distributed in a ring array; The upper outer surface of the circulation pipe (5) is provided with a circulation device, and the circulation device comprises an annular inclined flow divider plate (8), the inner wall of the annular inclined flow divider plate (8) is fixedly sleeved with the upper outer surface of the circulation pipe (5).

2. A straw particle dust removal structure for biochar production according to claim 1, characterized in that: The upper surface of the dust removal tank (1) is fixedly connected to a feed hopper (81), a servo motor (82) is fixedly mounted on the upper surface of the dust removal tank (1), and a rotating shaft (83) is fixedly mounted on the output shaft of the servo motor (82) via a coupling.

3. A straw particle dust removal structure for biochar production according to claim 2, characterized in that: One end of the rotating shaft (83) passes through the dust removal tank (1) and extends to the interior of the circulation pipe (5); a spiral piece (84) is fixedly sleeved on the outer surface of the rotating shaft (83); the outer surface of the spiral piece (84) contacts the inner wall of the circulation pipe (5); and an annular mounting block (85) is fixedly sleeved on the outer surface of the dust removal tank (1).

4. A straw particle dust removal structure for biochar production according to claim 3, characterized in that: The inner surface of the annular mounting block (85) is fixedly connected to dust suction pipes (86) distributed in an annular array, one end of each of the plurality of dust suction pipes (86) passes through and extends into the interior of the dust removal tank (1), and one end of the dust suction pipe (86) is fixedly connected to a dust suction hopper (87).

5. The straw particle dust removal structure for biochar production according to claim 4, characterized in that: The inner wall of the dust hopper (87) is fixedly sleeved with a screen (88), the lower surface of the dust removal tank (1) is fixedly connected with support columns (89) distributed in a ring array, and the lower surfaces of the plurality of support columns (89) are fixedly connected with a base (810).

6. A straw particle dust removal structure for biochar production according to claim 5, characterized in that: A filter box (811) is fixedly mounted on the upper surface of the base (810), a connecting pipe (812) is fixedly connected to one side surface of the filter box (811), one end of the connecting pipe (812) is fixedly connected to the lower surface of the annular mounting block (85), and an air pump (813) is fixedly mounted on the upper surface of the base (810).

7. A straw particle dust removal structure for biochar production according to claim 6, characterized in that: One end of the vacuum pump (813) is fixedly connected to an exhaust pipe (814), one end of the exhaust pipe (814) is fixedly connected to the other side surface of the filter box (811), and the outer surface of the dust removal tank (1) is hinged with a sealing door (815) via a hinge.

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