Straw fermentation treatment device

Abstract

The utility model belongs to the technical field of straw fermentation, and particularly relates to a straw fermentation treatment device which comprises a fermentation box and a liquid discharge pipe arranged on the outer wall of the fermentation box, the filtering mechanism is connected with the end, located in the fermentation box, of the liquid discharging pipe and is suitable for filtering waste materials in the fermentation box when the biogas slurry is discharged; the auxiliary mechanism is arranged in the fermentation box and is suitable for reciprocating up and down along the inner wall of the fermentation box so as to clean a filter screen when the waste materials are filtered and extrude the waste materials to extrude biogas slurry in the waste materials; by arranging the filtering mechanism, waste in the fermentation box is filtered so as to discharge biogas slurry, the auxiliary mechanism is synchronously started to extrude the waste so as to extrude the biogas slurry absorbed by the waste, and the surface of a filter screen in the filtering mechanism is cleaned while the waste is extruded, so that the waste is prevented from blocking the filter screen and affecting the discharge of the biogas slurry.

Description

Technical Field

[0001] The utility model belongs to the technical field of straw fermentation, and in particular relates to a straw fermentation processing device. Background Art

[0002] Nowadays, most of the piled up straw is fermented for use as animal feed or for fermentation to produce biogas. When producing biogas, the crushed straw is usually put into the fermentation tank and then sealed. After a period of time, the biogas generated is directly discharged to the outside through the biogas pipe, and the remaining biogas liquid and solid waste can be used for agricultural planting.

[0003] However, in actual operations, biogas slurry and solid waste are usually discharged simultaneously. Planters need to use containers to load the mixture and transport it to farmland for use. The transportation process is very troublesome and inconvenient for irrigation. The main reason is that there is no specific solid-liquid separation method for biogas fermentation products.

[0004] The existing patent application number is CN202220978080.8. The impurities on the outer surface of the filter are cleaned by pulling the push-pull rod up and down. At this time, the biogas slurry enters the inside of the filter tube through the filter, and then enters the inside of the biogas slurry discharge pipe. At the same time, when most of the biogas slurry is discharged, the solid fertilizer is accumulated on one side of the filter tube. At this time, the biogas slurry in the solid fertilizer of different depths penetrates into the inside of the filter tube from the side, further improving the precipitation rate of the biogas slurry, facilitating the improvement of the solid-liquid separation efficiency, and facilitating the transportation of solid-liquid fertilizer. However, when the waste is separated from the biogas slurry, the waste is not processed. Since the straw has a certain water absorption, the waste discharged at the end will contain more biogas slurry, causing waste. Therefore, it is necessary to design a straw fermentation treatment device that squeezes the waste while cleaning the filter to precipitate the biogas slurry in the waste. Utility Model Content

[0005] The utility model aims to provide a straw fermentation treatment device to solve the above technical problems.

[0006] In order to solve the above technical problems, the utility model provides a straw fermentation processing device, comprising:

[0007] A fermentation box and a drainage pipe arranged on its outer wall;

[0008] A filtering mechanism is connected to one end of the drain pipe located inside the fermentation tank and is suitable for filtering waste materials in the fermentation tank when discharging biogas slurry;

[0009] The auxiliary mechanism is arranged inside the fermentation box and is suitable for reciprocating up and down along the inner wall of the fermentation box to clean the filter screen when filtering waste and squeeze the waste to squeeze out the biogas liquid in the waste.

[0010] Furthermore, the auxiliary mechanism comprises:

[0011] An extrusion member connected to the inner wall of the fermentation tank; and

[0012] A stirring member is provided at the bottom of the rotating member; wherein

[0013] The extruder is suitable for reciprocating up and down along the inner wall of the fermentation box to squeeze the waste inside the fermentation box, and stirs the waste through the stirring member at the bottom of the rotating member to squeeze out the biogas slurry.

[0014] Furthermore, the inner wall of the fermentation box is provided with an internal thread; and

[0015] The outer wall of the extrusion piece is provided with an external thread; wherein

[0016] The outer wall of the extrusion piece is suitable for threaded engagement with the inner wall of the fermentation box so that the extrusion piece can reciprocate up and down along the inner wall of the fermentation box when the extrusion piece rotates forward and reversely.

[0017] Furthermore, the auxiliary mechanism also includes:

[0018] a cylinder disposed on top of the fermentation tank; and

[0019] The output end of the cylinder passes through the top of the fermentation box and is connected to the upper end bearing of the extrusion member;

[0020] The cylinder output end is suitable for pushing the extrusion member to rotate and move downward along the inner wall of the fermentation box to extrude the waste when it is extended.

[0021] Furthermore, the outer wall of the stirring member is in an arc shape.

[0022] Further, the filtering mechanism comprises:

[0023] A liquid collecting tank connected to one end of the liquid discharge pipe located inside the fermentation tank; and

[0024] A filter screen is located inside the collection tank to filter waste material.

[0025] Furthermore, a surface of the liquid collecting tank facing the axis of the fermentation tank is an arc-shaped surface;

[0026] The arcuate surface of the liquid collecting box is in arcuate contact with the outer wall of the stirring member; wherein

[0027] The stirring member is suitable for scraping away the waste materials blocking the filter screen on the curved surface of the liquid collecting box when the stirring member rotates and moves down to the curved surface of the liquid collecting box following the extrusion member.

[0028] The beneficial effect of the utility model is that the utility model is provided with a filtering mechanism to filter the waste in the fermentation box to discharge the biogas slurry, and simultaneously starts the auxiliary mechanism to squeeze the waste to squeeze out the biogas slurry absorbed by the waste, and cleans the surface of the filter screen in the filtering mechanism while squeezing the waste to prevent the waste from clogging the filter screen and affecting the discharge of the biogas slurry.

[0029] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0033] Figure 2 It is a schematic diagram of the internal cross-sectional structure of the fermentation box of the utility model.

[0034] In the figure:

[0035] 1. Fermentation box; 2. Drain pipe; 3. Discharge pipe; 4. Cylinder; 5. Discharge port; 6. Liquid collecting box; 7. Filter; 8. Extrusion piece; 9. Agitator. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0037] In the actual operation process, generally the biogas slurry and solid waste are discharged simultaneously. The growers need to use containers to load the mixture and transport it to the farmland for use. The transportation process is very troublesome and inconvenient for irrigation. The conventional solid-liquid separation method is to pull the push-pull rod up and down by hand to clean the impurities on the outer surface of the filter. At this time, the biogas slurry passes through the filter into the inside of the filter tube and then enters the inside of the biogas slurry discharge pipe. However, this method does not process the waste when separating the waste from the biogas slurry. Since the straw has a certain water absorption, the waste discharged at the end will contain more biogas slurry, resulting in waste.

[0038] To solve the above technical problems, in some embodiments, Figure 1 to Figure 2 As shown, a straw fermentation processing device is provided, which includes: a drainage pipe 2 arranged at the lower part of the outside of a fermentation box 1. After the straw fermentation is completed, the biogas formed by the fermentation is discharged through the exhaust pipe. For the biogas slurry and waste materials remaining in the fermentation box, the valve on the drainage pipe 2 is opened, and the waste liquid is discharged and collected through the drainage pipe 2. The waste materials inside the fermentation box 1 are filtered through a collecting box 6 and a filter screen 7 at one end of the drainage pipe 2, so that the biogas slurry flows into the drainage pipe 2 through the filter screen 7.

[0039] In some embodiments, Figure 2 As shown, while discharging the biogas slurry, the cylinder 4 is started, and when the output end thereof is extended, the extruding member 8 is pushed to move downward in the fermentation box 1. Since the external thread on the outer wall of the extruding member 8 is meshed with the internal thread on the inner wall of the fermentation box 1, the extruding member 8 is rotated and moved downward with the inner wall of the fermentation box 1 when the output end of the cylinder 4 is extended, and the waste material inside the fermentation box 1 is squeezed to squeeze out the biogas slurry in the waste material. As the extruding member 8 continues to rotate and move downward, the stirring member 9 follows the rotation and moves downward until it moves to the position of the liquid collecting box 6. The side of the stirring member 9 away from the axis of the fermentation box 1 is arc-shaped, and the side of the liquid collecting box 6 close to the axis of the fermentation box 1 is arc-shaped, and the two are matched with each other, that is, when the stirring member 9 rotates to the liquid collecting box 6, the surface of the filter screen 7 located at the arc-shaped surface of the liquid collecting box 6 is cleaned to prevent the waste material from clogging the filter screen 7 and affecting the discharge of the biogas slurry.

[0040] To summarize, by providing a filtering mechanism, the waste in the fermentation box is filtered to discharge the biogas slurry, and the auxiliary mechanism is started simultaneously to squeeze the waste to squeeze out the biogas slurry absorbed by the waste, and the surface of the filter in the filtering mechanism is cleaned while squeezing the waste to prevent the waste from clogging the filter and affecting the discharge of the biogas slurry.

[0041] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0043] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A straw fermentation treatment device, characterized in that: include: A fermentation box and a drainage pipe arranged on its outer wall; A filtering mechanism is connected to one end of the drain pipe located inside the fermentation tank and is suitable for filtering waste materials in the fermentation tank when discharging biogas slurry; The auxiliary mechanism is arranged inside the fermentation box and is suitable for reciprocating up and down along the inner wall of the fermentation box to clean the filter screen when filtering waste and squeeze the waste to squeeze out the biogas liquid in the waste.

2. The straw fermentation treatment device according to claim 1, characterized in that: The auxiliary mechanism includes: An extrusion member connected to the inner wall of the fermentation tank; and The bottom of the extrusion piece is provided with a stirring piece; wherein The extruder is suitable for reciprocating up and down along the inner wall of the fermentation box to squeeze the waste inside the fermentation box, and stirs the waste through the stirring member at the bottom of the rotating member to squeeze out the biogas slurry.

3. The straw fermentation treatment device according to claim 2, characterized in that: The inner wall of the fermentation box is provided with internal threads; and The outer wall of the extrusion piece is provided with an external thread; wherein The outer wall of the extrusion piece is suitable for threaded engagement with the inner wall of the fermentation box so that the extrusion piece can reciprocate up and down along the inner wall of the fermentation box when the extrusion piece rotates forward and reversely.

4. The straw fermentation treatment device according to claim 3, characterized in that: The auxiliary mechanism also includes: a cylinder disposed on top of the fermentation tank; and The output end of the cylinder passes through the top of the fermentation box and is connected to the upper end bearing of the extrusion member; The cylinder output end is suitable for pushing the extrusion member to rotate and move downward along the inner wall of the fermentation box to extrude the waste when it is extended.

5. The straw fermentation treatment device according to claim 4, characterized in that: The outer wall of the stirring member is in an arc shape.

6. The straw fermentation treatment device according to claim 5, characterized in that: The filtering mechanism comprises: A liquid collecting tank connected to one end of the liquid discharge pipe located inside the fermentation tank; and A filter is located in the collection tank to filter waste materials.

7. The straw fermentation treatment device according to claim 6, characterized in that: The side of the liquid collecting tank facing the axis of the fermentation tank is an arc-shaped surface; The arcuate surface of the liquid collecting box is in arcuate contact with the outer wall of the stirring member; wherein The stirring member is suitable for scraping away the waste materials blocking the filter screen on the curved surface of the liquid collecting box when the stirring member rotates and moves down to the curved surface of the liquid collecting box following the extrusion member.

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