Self-flowing pig raising biogas slurry recovery treatment device

Abstract

The utility model discloses a self-flowing type pig raising biogas slurry recovery processing device, which comprises a box body, a scraping and brushing mechanism and a filtering mechanism, the upper end of the box body is provided with a feeding groove, the box body is internally provided with a filtering plate, the scraping and brushing mechanism comprises a motor, the output end of the motor is provided with a threaded screw rod, and the threaded screw rod is provided with a screw rod. A threaded block is in threaded connection with the surface of the threaded screw rod, a scraping plate is arranged on the outer side of the threaded block, a slag discharging groove is formed in the right side of the box body, a control valve is arranged on the inner bottom wall of the box body, and a first liquid discharging pipe is fixedly connected to the lower end of the control valve. By means of the structure, preliminary interception is conducted through the filter plate, reciprocating pushing of the scraper blade is matched, blockage of the filter plate is avoided, the filtering and screening speed is increased, the separated biogas slurry is refined, the effect of removing most of nitrogen and phosphorus is achieved, and therefore the treated biogas slurry can be directly discharged; the biogas slurry emission pollution is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of biogas slurry treatment equipment, in particular to a gravity-flow pig-raising biogas slurry recovery and treatment device. Background Art

[0002] There are pig farmers in every region of my country, and the pig farming models are also very diverse, including shed pig farming, mountain pig farming, etc. In recent years, with the rapid development of my country's animal husbandry, biogas projects have developed rapidly, and large-scale and intensive biogas projects have increased. A large number of biogas projects have alleviated my country's natural gas shortage problem, but it has also made the discharge of effluent biogas slurry a new problem. At present, there are two main ways to dispose of biogas slurry. One is to return it to the field directly after dilution, which not only consumes a lot of water, but also the long-term accumulation of pollutants in the biogas slurry will cause pollution to farmland; the other is to reduce the content of pollutants in the biogas slurry through process treatment so that it can meet the standards before discharge.

[0003] In the prior art, biogas slurry and biogas residue are mixed together. The nutrients they contain are different and their effects on crops are also different. Therefore, after the use of biogas, the mixture of biogas slurry and biogas residue needs to be processed to separate the biogas slurry and biogas residue for later use. The existing biogas slurry and biogas residue separation is generally to directly pour the mixture of biogas slurry and biogas residue onto a filter for filtration, and the separation speed is slow, which makes the separation of biogas slurry and biogas residue take a long time. Utility Model Content

[0004] The utility model aims to provide a self-flowing pig farming biogas slurry recovery and treatment device, which can perform preliminary interception through a filter plate, cooperate with the reciprocating push of a scraper to avoid clogging of the filter plate, speed up the filtering and screening speed, and refine the separated biogas slurry to remove most of the nitrogen and phosphorus, so that the treated biogas slurry can be directly discharged, effectively avoiding biogas slurry discharge pollution.

[0005] In order to achieve the above-mentioned purpose, a self-flowing pig biogas slurry recovery and treatment device is provided, comprising a box body, a scraping and brushing mechanism and a filtering mechanism;

[0006] A feed trough is provided at the upper end of the box body, a filter plate is provided inside the box body, the scraping mechanism comprises a motor, a threaded screw is provided at the output end of the motor, a threaded block is threadedly connected to the surface of the threaded screw, a scraper is provided on the outer side of the threaded block, and a slag discharge trough is provided on the right side of the box body;

[0007] The inner bottom wall of the box body is provided with a control valve, and the lower end of the control valve is fixedly connected to a first drain pipe. The filtering mechanism includes a sedimentation bin, and the interior of the sedimentation bin is provided with a gravel filter layer, a fine sand filter layer and an activated carbon filter layer, and the lower end of the sedimentation bin is fixedly connected to a second drain pipe.

[0008] According to the self-flowing pig biogas slurry recovery and treatment device, a fixing block is fixedly connected to the inner wall of the box body, and the fixing block is fixedly connected to the filter plate.

[0009] According to the self-flowing pig biogas slurry recovery and treatment device, a slide groove is provided inside the box body, and a slider is slidably connected inside the slide groove.

[0010] According to the self-flowing pig biogas slurry recovery and treatment device, the motor is fixedly connected to the right side of the box body.

[0011] According to the self-flowing pig biogas recovery and treatment device, a first connecting rod is fixedly connected to the surface of the threaded block, the first connecting rod is fixedly connected to the slider, a second connecting rod is fixedly connected to the surface of the slider, and the second connecting rod is fixedly connected to the scraper.

[0012] According to the self-flowing pig biogas slurry recovery and treatment device, the sedimentation bin is fixedly connected to the first drainage pipe.

[0013] According to the self-flowing pig biogas slurry recovery and treatment device, the lower end of the box body is fixedly connected with support legs, and the number of the support legs is four.

[0014] The utility model has the following beneficial effects:

[0015] 1. Compared with the prior art, this gravity-flow pig biogas slurry recovery and treatment device realizes the initial interception of the filter plate by setting a slide, a slider, a motor, a threaded screw, a threaded block, a first connecting rod, a second connecting rod and a scraper, and cooperates with the reciprocating push of the scraper to avoid the clogging of the filter plate, which has the effect of accelerating the filtering and screening speed.

[0016] 2. Compared with the existing technology, this gravity-flowing pig farming biogas slurry recovery and treatment device, by setting up a sedimentation bin, a gravel filter layer, a fine sand filter layer and an activated carbon filter layer, realizes the refinement of the separated biogas slurry to remove most of the nitrogen and phosphorus, and has the effect of allowing the treated biogas slurry to be discharged directly, effectively avoiding the pollution of biogas slurry discharge.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0019] Figure 1This is a cross-sectional view of the interior of a box of a gravity-flow pig biogas slurry recovery and treatment device of the utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of a gravity-flow pig biogas slurry recovery and treatment device of the utility model;

[0021] Figure 3 This is a schematic diagram of the motor structure connection of a gravity-flow pig biogas slurry recovery and treatment device of the utility model;

[0022] Figure 4 The utility model is a cross-sectional view of the interior of a sedimentation bin of a gravity-flow pig biogas slurry recovery and treatment device.

[0023] Legend:

[0024] 1. Box body; 2. Scraping mechanism; 3. Filter mechanism; 4. Feed trough; 5. Fixing block; 6. Filter plate; 7. Slag discharge trough; 8. Control valve; 9. First drain pipe; 10. Second drain pipe; 11. Support leg;

[0025] 21. slideway; 22. slider; 23. motor; 24. threaded screw; 25. threaded block; 26. first connecting rod; 27. second connecting rod; 28. scraper;

[0026] 31. Sedimentation chamber; 32. Gravel filter layer; 33. Fine sand filter layer; 34. Activated carbon filter layer. DETAILED DESCRIPTION

[0027] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0028] Reference Figure 1-4 The utility model embodiment provides a gravity-flow pig biogas slurry recovery and treatment device, which includes a box body 1, a scraping and brushing mechanism 2 and a filtering mechanism 3.

[0029] A feed trough 4 is provided at the upper end of the box body 1, through which the biogas slurry and biogas residue enter the box body 1. A filter plate 6 is provided inside the box body 1 for screening and intercepting the biogas slurry and biogas residue. A fixing block 5 is fixedly connected to the inner wall of the box body 1 for fixing the filter plate 6. The fixing block 5 is fixedly connected to the filter plate 6. A slide groove 21 is provided inside the box body 1 for limiting the sliding of the slider 22. The slider 22 is slidably connected inside the slide groove 21. The scraping mechanism 2 includes a motor 23 for controlling the rotation of the threaded screw 24. The motor 23 is fixedly connected to the box body. 1, a threaded screw 24 is provided at the output end of the motor 23, a threaded block 25 is threadedly connected to the surface of the threaded screw 24, a scraper 28 is provided on the outer side of the threaded block 25, a first connecting rod 26 is fixedly connected to the surface of the threaded block 25 for connecting the threaded block 25 with the slider 22, the first connecting rod 26 is fixedly connected to the slider 22, a second connecting rod 27 is fixedly connected to the surface of the slider 22 for connecting the slider 22 with the scraper 28, the second connecting rod 27 is fixedly connected to the scraper 28, and a slag discharge groove 7 is provided on the right side of the box body 1 for discharging the biogas slag therethrough.

[0030] A control valve 8 is provided on the inner bottom wall of the box body 1 for controlling the flow of the biogas slurry. The lower end of the control valve 8 is fixedly connected to the first drain pipe 9. The sedimentation bin 31 is fixedly connected to the first drain pipe 9. The filtering mechanism 3 includes a sedimentation bin 31. The interior of the sedimentation bin 31 is provided with a gravel filter layer 32, a fine sand filter layer 33 and an activated carbon filter layer 34 for adsorbing most of the nitrogen and phosphorus and removing odor. The lower end of the sedimentation bin 31 is fixedly connected to the second drain pipe 10. The lower end of the box body 1 is fixedly connected to a support leg 11 for ensuring the stability of the entire device. There are four support legs 11.

[0031] Working principle: When in use, the biogas slurry and biogas residue are poured into the box body 1 through the feed trough 4, and the motor 23 is started to drive the rotation of the threaded screw 24 to control the movement of the threaded block 25. The first connecting rod 26 connects the threaded block 25 with the slider 22, and the second connecting rod 27 connects the slider 22 with the scraper 28, so that the slider 22 is driven to slide in the slide 21, thereby controlling the scraper 28 to push the biogas residue intercepted on the surface of the filter plate 6 out of the residue discharge trough 7, and then open the control valve 8 to allow the biogas slurry to flow through the first drainage pipe 9 to the sedimentation bin 31, and then pass through the gravel filter layer 32, the fine sand filter layer 33 and the activated carbon filter layer 34 to complete the fine filtration, and then be discharged through the second drainage pipe 10 to complete the treatment.

[0032] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A gravity-flow pig biogas slurry recovery and treatment device, characterized in that: It comprises a box body (1), a scraping mechanism (2) and a filtering mechanism (3); The upper end of the box body (1) is provided with a feed trough (4), the interior of the box body (1) is provided with a filter plate (6), the scraping mechanism (2) comprises a motor (23), the output end of the motor (23) is provided with a threaded screw (24), the surface of the threaded screw (24) is threadedly connected with a threaded block (25), the outer side of the threaded block (25) is provided with a scraper (28), and the right side of the box body (1) is provided with a slag discharge trough (7); The inner bottom wall of the box body (1) is provided with a control valve (8), the lower end of the control valve (8) is fixedly connected to a first liquid discharge pipe (9), the filtering mechanism (3) comprises a sedimentation bin (31), the interior of the sedimentation bin (31) is provided with a gravel filter layer (32), a fine sand filter layer (33) and an activated carbon filter layer (34), and the lower end of the sedimentation bin (31) is fixedly connected to a second liquid discharge pipe (10).

2. A gravity-flow pig biogas slurry recovery and treatment device according to claim 1, characterized in that: A fixing block (5) is fixedly connected to the inner wall of the box body (1), and the fixing block (5) is fixedly connected to the filter plate (6).

3. A gravity-flow pig biogas slurry recovery and treatment device according to claim 1, characterized in that: A slide groove (21) is provided inside the box body (1), and a sliding block (22) is slidably connected inside the slide groove (21).

4. A gravity-flow pig biogas slurry recovery and treatment device according to claim 1, characterized in that: The motor (23) is fixedly connected to the right side of the box body (1).

5. A gravity-flow pig biogas slurry recovery and treatment device according to claim 3, characterized in that: A first connecting rod (26) is fixedly connected to the surface of the threaded block (25), and the first connecting rod (26) is fixedly connected to the slider (22). A second connecting rod (27) is fixedly connected to the surface of the slider (22), and the second connecting rod (27) is fixedly connected to the scraper (28).

6. A gravity-flow pig biogas slurry recovery and treatment device according to claim 1, characterized in that: The sedimentation bin (31) is fixedly connected to the first liquid discharge pipe (9).

7. A gravity-flow pig biogas slurry recovery and treatment device according to claim 1, characterized in that: The lower end of the box body (1) is fixedly connected with a support leg (11), and the number of the support legs (11) is four.

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