Agricultural sludge anaerobic digestion treatment device

Abstract

The utility model discloses an agricultural sludge anaerobic digestion treatment device, and relates to the technical field of sludge anaerobic digestion treatment devices. The agricultural sludge anaerobic digestion treatment device comprises a bottom plate, a control box and an anaerobic digestion reactor, a crushing mechanism is arranged at the top of the bottom plate, an extrusion mechanism is arranged on the surface of the crushing mechanism, and extraction assemblies are arranged on the top of the bottom plate, the surface of the crushing mechanism and the surface of the anaerobic digestion reactor. According to the anaerobic digestion reactor, massive sludge is crushed through the extrusion mechanism, the sludge is crushed into smaller particles through the crushing mechanism, the decomposition effect of anaerobic microorganisms is facilitated, and the sludge crushed in the crushing mechanism is extracted into the anaerobic digestion reactor through the extraction assembly; and organic matters are easier to degrade by microorganisms after the sludge is crushed, so that more biogas can be generated, the particle size can be reduced by crushing the sludge, the blocking risk is reduced, and the stable operation of the system is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of anaerobic digestion treatment devices for sludge, and specifically to an anaerobic digestion treatment device for agricultural sludge. Background Technology

[0002] Anaerobic digestion of sludge is a complex biochemical process, mainly including hydrolysis, fermentation (acidification), acetogenesis, and methanogenesis. During these stages, facultative and obligate anaerobic bacteria work together to gradually decompose the biodegradable organic matter in the sludge into stable substances such as carbon dioxide, methane, and water. Agricultural sludge anaerobic digestion treatment equipment is used for this process. Its core function is to convert the organic matter in the sludge into biogas under anaerobic conditions through the action of microorganisms, thereby achieving sludge stabilization and volume reduction.

[0003] Current agricultural sludge anaerobic digestion treatment devices lack pretreatment equipment. When anaerobic digesting sludge, it is directly added to the anaerobic digestion reactor. Without pretreatment, the sludge is in large lumps. Uncrushed sludge contains large particles and colloidal substances, which are prone to depositing and clogging in pipes and equipment. Furthermore, the large particle size of uncrushed sludge is not conducive to the better attachment and degradation of organic matter by microorganisms. Improvements should be made to address these issues.

[0004] Therefore, an anaerobic digestion treatment device for agricultural sludge is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide an anaerobic digestion treatment device for agricultural sludge in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] An anaerobic digestion treatment device for agricultural sludge includes a base plate, a control box, and an anaerobic digestion reactor. The control box and the anaerobic digestion reactor are both fixedly installed on the top of the base plate. The top of the base plate is provided with a crushing mechanism for crushing sludge into small particles. The surface of the crushing mechanism is provided with a compression mechanism for compressing the sludge. The top of the base plate, the surface of the crushing mechanism, and the surface of the anaerobic digestion reactor are provided with extraction components for extracting the sludge crushed and processed inside the crushing mechanism into the anaerobic digestion reactor.

[0008] Furthermore, the crushing mechanism includes a housing, with the housing fixedly mounted on the top of the base plate. Two sets of crushing rollers are rotatably mounted on the inner wall of the housing, and one end of each set of crushing rollers penetrates one side wall of the housing and extends to its outside. A driving gear and a driven gear are respectively fixedly mounted on the end of the two sets of crushing rollers, and the driving gear and the driven gear mesh with each other. A first motor is fixedly mounted on one side outer wall of the housing, and the output end of the first motor is fixedly connected to one end of a set of crushing rollers.

[0009] Furthermore, the extrusion mechanism includes an inclined plate, an inclined plate is fixedly provided on one side wall of the housing, a slide groove is provided on one side of the inclined plate, a second motor is fixedly provided on the other side of the inclined plate, a bidirectional threaded rod is rotatably provided on the inner wall of the inclined plate, and one end of the bidirectional threaded rod passes through the surface of the inclined plate and is fixedly connected to the output end of the second motor. A slider is threadedly connected to the surface of the bidirectional threaded rod, and the slider is slidably installed with the inner wall of the slide groove. An extrusion plate is fixedly provided on the surface of the slider.

[0010] Furthermore, both the slider and the extrusion plate are provided in two sets, and the two sets of extrusion plates are arranged in a corresponding manner.

[0011] Furthermore, the bottom inner side of the inclined plate is inclined, and the two sets of extrusion plates are adapted to the inclined plate.

[0012] Furthermore, the extraction assembly includes an extraction pump, which is fixedly mounted on the top of the base plate. A connecting pipe and a guide pipe are fixedly connected to the surface of the extraction pump, and the other end of the connecting pipe is fixedly connected to the bottom of the box, and the other end of the guide pipe is fixedly connected to the surface of the anaerobic digester.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model controls the start and stop of the crushing mechanism, the extrusion mechanism, and the extraction component through a control box. Before the sludge undergoes anaerobic digestion, it is first pretreated by the crushing and extrusion mechanisms. The extrusion mechanism crushes the sludge, breaking down large pieces. The crushed sludge falls into the crushing mechanism, where it is broken into smaller particles, which is beneficial for the decomposition by anaerobic microorganisms. The extraction component then extracts the crushed sludge from the crushing mechanism into the anaerobic digester. Because the organic matter is more easily degraded by microorganisms after the sludge is crushed, more biogas can be produced. Furthermore, crushing the sludge reduces particle size, lowers the risk of clogging, and ensures the stable operation of the system. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the top view of this utility model;

[0017] Figure 3 This is a schematic diagram of an enlarged view of part A of this utility model;

[0018] Figure 4 This is a partial side view schematic diagram of the present invention;

[0019] Reference numerals: 1. Base plate; 2. Control box; 3. Anaerobic digester; 4. Crushing mechanism; 401. Box body; 402. Crushing roller; 403. Driving gear; 404. Driven gear; 405. First motor; 5. Extrusion mechanism; 501. Inclined plate; 502. Slide groove; 503. Second motor; 504. Bidirectional threaded rod; 505. Sliding block; 506. Extrusion plate; 6. Extraction assembly; 601. Extraction pump; 602. Connecting pipe; 603. Guide pipe. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] like Figures 1 to 4 As shown, an anaerobic digestion treatment device for agricultural sludge includes a base plate 1, a control box 2, and an anaerobic digestion reactor 3. The control box 2 and the anaerobic digestion reactor 3 are both fixedly mounted on the top of the base plate 1. The top of the base plate 1 is equipped with a crushing mechanism 4 for breaking the sludge into small particles. The surface of the crushing mechanism 4 is equipped with a compression mechanism 5 for squeezing the sludge. The top of the base plate 1, the surface of the crushing mechanism 4, and the surface of the anaerobic digestion reactor 3 are equipped with an extraction component 6 for extracting the sludge processed by the crushing mechanism 4 into the anaerobic digestion reactor 3. Specifically, the control box 2 controls the crushing mechanism 4, the compression mechanism 5, and the extraction component. Before the anaerobic digestion reaction, the sludge is pretreated by the crushing mechanism 4 and the extrusion mechanism 5. The extrusion mechanism 5 crushes the sludge, breaking down large pieces. The crushed sludge falls into the crushing mechanism 4, where it is broken into smaller particles, which facilitates the decomposition by anaerobic microorganisms. The extraction component 6 then extracts the crushed sludge from the crushing mechanism 4 into the anaerobic digester 3. Since the organic matter is more easily degraded by microorganisms after the sludge is crushed, more biogas can be produced. Crushing the sludge also reduces the particle size, lowers the risk of clogging, and ensures the stable operation of the system.

[0025] like Figure 2 , Figure 3 As shown, the crushing mechanism 4 includes a housing 401, which is fixedly mounted on the top of the base plate 1. Two sets of crushing rollers 402 are rotatably mounted on the inner wall of the housing 401, and one end of each set of crushing rollers 402 penetrates one side wall of the housing 401 and extends to its outside. A driving gear 403 and a driven gear 404 are respectively fixedly mounted on the end of the two sets of crushing rollers 402, and the driving gear 403 and the driven gear 404 mesh with each other. A first motor 405 is fixedly mounted on one side outer wall of the housing 401, and the output end of the first motor 405 is fixedly connected to one end of one set of crushing rollers 402. Specifically, when the first motor 405 is started, its output end drives one set of crushing rollers 402 to rotate, thereby causing the driving gear 403 to rotate. The rotation of the driving gear 403 causes the driven gear 404 to rotate in the opposite direction, thereby causing the other set of crushing rollers 402 to rotate. The sludge passes between the two sets of crushing rollers 402, and is crushed into smaller particles by the two sets of crushing rollers 402.

[0026] like Figure 2 , Figure 4As shown, the extrusion mechanism 5 includes an inclined plate 501. An inclined plate 501 is fixedly provided on one side wall of the housing 401. A sliding groove 502 is provided on one side of the inclined plate 501. A second motor 503 is fixedly provided on the other side of the inclined plate 501. A bidirectional threaded rod 504 is rotatably provided on the inner wall of the inclined plate 501. One end of the bidirectional threaded rod 504 passes through the surface of the inclined plate 501 and is fixedly connected to the output end of the second motor 503. A slider 505 is threadedly connected to the surface of the bidirectional threaded rod 504. The slider 505 is slidably installed with the inner wall of the sliding groove 502. An extrusion plate 506 is fixedly provided on the surface of the slider 505. Specifically, when the second motor 503 is started, its output end drives the bidirectional threaded rod 504 to rotate, thereby causing the slider 505 to slide, and thus causing the extrusion plate 506 to move.

[0027] like Figure 2 , Figure 4 As shown, both the slider 505 and the extrusion plate 506 are provided in two sets, and the two sets of extrusion plates 506 are arranged in a corresponding manner. Specifically, the rotation of the bidirectional threaded rod 504 causes the two sets of sliders 505 to slide in opposite directions, thereby realizing the separation and closure of the two sets of extrusion plates 506. The sludge passes between the two sets of extrusion plates 506. When the two sets of extrusion plates 506 are closed, the sludge is extruded.

[0028] like Figure 1 , Figure 4 As shown, the bottom inner side of the inclined plate 501 is inclined, and the two sets of extrusion plates 506 are adapted to the inclined plate 501. Specifically, the sludge passes through the bottom inner side of the inclined plate 501. Because the bottom inner side of the inclined plate 501 is inclined, the sludge can slide down the inclined surface of the inclined plate 501 into the interior of the box 401.

[0029] like Figure 1 , Figure 2 As shown, the extraction assembly 6 includes an extraction pump 601. The extraction pump 601 is fixedly installed on the top of the base plate 1. A connecting pipe 602 and a guide pipe 603 are fixedly connected to the surface of the extraction pump 601, and the other end of the connecting pipe 602 is fixedly connected to the bottom of the box 401, and the other end of the guide pipe 603 is fixedly connected to the surface of the anaerobic digestion reactor 3. Specifically, when the extraction pump 601 is started, the crushed sludge inside the box 401 is extracted into the interior of the connecting pipe 602 and the guide pipe 603, and the sludge is guided into the interior of the anaerobic digestion reactor 3 through the guide pipe 603.

[0030] In summary: By controlling the start and stop of the crushing mechanism 4, the extrusion mechanism 5, and the extraction component 6 through the control box 2, the sludge is pretreated by the crushing mechanism 4 and the extrusion mechanism 5 before undergoing anaerobic digestion. The extrusion mechanism 5 crushes the sludge, breaking down large pieces. The crushed sludge falls into the crushing mechanism 4, where it is broken into smaller particles, which is beneficial for the decomposition by anaerobic microorganisms. The extraction component 6 then extracts the crushed sludge from the crushing mechanism 4 into the anaerobic digester 3. Since the organic matter is more easily degraded by microorganisms after the sludge is crushed, more biogas can be produced. Furthermore, crushing the sludge reduces particle size, lowers the risk of clogging, and ensures the stable operation of the system.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An apparatus for anaerobic digestion treatment of agricultural sludge, characterized by comprising: The utility model provides an anaerobic digestion reactor, including bottom plate (1) and control box (2) and anaerobic digestion reactor (3), control box (2) and anaerobic digestion reactor (3) are fixedly arranged on the top of bottom plate (1), the top of bottom plate (1) is equipped with the crushing mechanism (4) for crushing sludge into small particles, the surface of crushing mechanism (4) is equipped with the extrusion mechanism (5) for extruding sludge, the top of bottom plate (1) and the surface of crushing mechanism (4) and the surface of anaerobic digestion reactor (3) are equipped with the extraction assembly (6) for extracting sludge crushed in crushing mechanism (4) to the inside of anaerobic digestion reactor (3).

2. The agricultural sludge anaerobic digestion treatment device according to claim 1, characterized in that, The utility model discloses a crushing mechanism (4) includes the box (401), the top of bottom plate (1) is fixedly equipped with the box (401), the inner wall of box (401) is rotatably equipped with two groups of crushing rollers (402), and one end of two groups of crushing rollers (402) penetrates through one side wall of box (401) and extends to its outside, and the end of two groups of crushing rollers (402) is fixedly sleeved with driving gear (403) and driven gear (404) respectively, and driving gear (403) is engaged with driven gear (404), one side outer wall of box (401) is fixedly equipped with first motor (405), and the output end of first motor (405) is fixedly connected with one end of one group of crushing rollers (402).

3. The agricultural sludge anaerobic digestion treatment device according to claim 2, characterized in that, The utility model discloses an extrusion mechanism (5) includes the inclined plate (501), one side wall of box (401) is fixedly equipped with the inclined plate (501), one side of inclined plate (501) is equipped with the sliding slot (502), the other side of inclined plate (501) is fixedly equipped with second motor (503), the inner wall of inclined plate (501) is rotatably equipped with two -way threaded rod (504), and one end of two -way threaded rod (504) penetrates the surface of inclined plate (501) and is fixedly connected with the output end of second motor (503), the surface of two -way threaded rod (504) is threadedly connected with sliding block (505), and sliding block (505) is slidably installed with the inner wall of sliding slot (502), the surface of sliding block (505) is fixedly equipped with extrusion plate (506).

4. The agricultural sludge anaerobic digestion treatment device according to claim 3, characterized in that, The utility model discloses a sliding block (505) and extrusion plate (506) are equipped with two groups, and two groups of extrusion plate (506) are correspondingly arranged.

5. The agricultural sludge anaerobic digestion treatment device according to claim 4, characterized in that, The inner bottom of the inclined plate (501) is inclined, and the two groups of extrusion plates (506) are matched with the inclined plate (501).

6. The agricultural sludge anaerobic digestion treatment device according to claim 2, characterized in that, The utility model discloses an extraction assembly (6) includes extraction pump (601), the top of bottom plate (1) is fixedly equipped with extraction pump (601), the surface of extraction pump (601) is fixedly connected with connecting pipe (602) and guide pipe (603) respectively, and the other end of connecting pipe (602) is fixedly connected with the bottom of box (401), and the other end of guide pipe (603) is fixedly connected with the surface of anaerobic digestion reactor (3).

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