Biogas slurry separation device based on HDPE pig manure fermentation

Abstract

The utility model discloses a biogas slurry separation device based on HDPE pig manure fermentation, and relates to the field of biogas slurry separation, the biogas slurry separation device comprises a separation tank, a storage tank and a screw conveyer arranged on one side of the separation tank, the inner wall of the separation tank is provided with a separation assembly for separating biogas slurry, the separation assembly comprises a hydraulic rod, and the hydraulic rod is connected with the storage tank. The hydraulic rod is arranged on the side, away from the spiral conveyor, of the separation tank, an extrusion plate is slidably arranged on the inner wall of the separation tank, and the side, close to the hydraulic rod, of the extrusion plate is fixed to the extending end of the hydraulic rod; according to the separation assembly, after biogas residues are extruded through an extrusion plate, biogas slurry in the biogas residues is separated out, then the extruded biogas residues are loosened through a loosening rod, part of caking and compact structures in the biogas residues can be damaged in the loosening process, the biogas residues are looser, and when the biogas residues are pressed again, the biogas residues are separated out through the separation assembly; the loose structure is beneficial to more uniformly extruding the biogas residues and reducing nonuniformity and impurity content in the biogas residues.

Description

Technical Field

[0001] The utility model relates to the field of biogas slurry separation, in particular to a biogas slurry separation device based on HDPE pig manure fermentation. Background Art

[0002] The scale of livestock and poultry farming is becoming increasingly intensive and large-scale, which in turn generates a large amount of livestock and poultry manure. In order to dispose of the above livestock and poultry manure, various places have promoted a large number of green integrated farming and breeding models of "producing biogas and power generation from livestock and poultry manure, and returning biogas residue and liquid to the fields", such as the "pig-biogas-fertilizer-field" model. The biogas liquid separation device is an indispensable and important material.

[0003] At present, in order to solve the key problems of nitrogen, phosphorus, heavy metals and nitrogen and phosphorus non-point source pollution that may be caused by long-term use of biogas slurry, HDPE biogas slurry is used to reduce pollution problems in extremely sensitive ecological areas. Therefore, a biogas slurry separation device based on HDPE pig manure fermentation was proposed.

[0004] Chinese patent CN219686638U relates to a biogas residue and biogas liquid separation device for biogas slurry treatment, and in particular to a biogas residue and biogas liquid separation device, comprising a bottom box, a separation tank is fixedly connected to the upper side of the inner wall of the bottom box, a feed hopper is installed on the right side of the upper surface of the separation tank, a separation assembly is arranged on the right side of the separation tank, the left side of the separation tank is connected with the right side of the discharge barrel, a stepper motor a drives an extrusion plate to move leftward to extrude the biogas liquid contained in the biogas residue, when the auger is not rotating, the discharge barrel forms a closed space, and cooperates with the extrusion plate to extrude the biogas liquid contained in the biogas residue, when the extrusion is completed, the stepper motor b drives the auger to rotate, discharges the biogas residue from the separation tank through the discharge barrel, and the extrusion plate cooperates with the auger to push the biogas residue to the discharge barrel, thereby solving the problem that the biogas residue in the existing device is difficult to remove and affects the biogas liquid filtration efficiency.

[0005] This patent uses a stepper motor a to drive the extrusion plate to move left to extrude the biogas liquid contained in the sludge. When the auger is not rotating, the discharge barrel forms a closed space, and cooperates with the extrusion plate to extrude the biogas liquid contained in the sludge. When the extrusion is completed, the stepper motor b drives the auger to rotate, and discharges the sludge through the discharge barrel out of the separation tank, and the extrusion plate cooperates with the auger to push the sludge into the discharge barrel, solving the problem that the sludge in the existing device is difficult to remove, affecting the filtration efficiency of the biogas liquid. The device can effectively extrude the sludge and separate the biogas liquid. However, the sludge becomes hard after being squeezed, and some biogas liquid still remains in the sludge, and the biogas liquid cannot be separated more thoroughly.

[0006] Therefore, it is necessary to propose a biogas slurry separation device based on HDPE pig manure fermentation to solve the above problems. Utility Model Content

[0007] The utility model aims to provide a biogas slurry separation device based on HDPE pig manure fermentation to solve the problem in the above background technology that the biogas residue becomes hard after being squeezed, some biogas slurry still remains in the biogas residue, and the biogas slurry cannot be separated more thoroughly.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a biogas slurry separation device based on HDPE pig manure fermentation, comprising a separation tank and a storage tank and a screw conveyor arranged on one side of the separation tank, the inner wall of the separation tank is provided with a separation component for separating the biogas slurry, the separation component comprises a hydraulic rod, the hydraulic rod is arranged on the side of the separation tank away from the screw conveyor, an extrusion plate is slidably provided on the inner wall of the separation tank, and the extrusion plate is fixed to the protruding end of the hydraulic rod on the side close to the hydraulic rod.

[0009] Preferably, the inner wall of the separation tank is provided with multiple equidistant separation holes, a support box is provided on the top of the separation tank, a first electric push rod is rotatably provided on the surface of the support box, a fixed plate is provided at the protruding end of the first electric push rod, a plurality of equidistant loosening rods are provided on the fixed plate, and the inner wall of the support box is connected to the separation tank.

[0010] Preferably, a first support frame is provided on the surface of the support box, a sleeve is provided on the outer side wall of the first electric push rod, a rotating shaft is provided on the top of the sleeve, the rotating shaft is rotatably connected to the first support frame through a bearing, a first gear is provided on the outer side wall of the rotating shaft, a second support frame is provided on the top of the separation tank close to the first support frame, a motor is provided on the surface of the second support frame, a second gear is provided on the output end of the motor, and the second gear is meshingly connected to the first gear.

[0011] Preferably, a second electric push rod is provided on the top of the separation tank, an opening and closing plate is provided at the protruding end of the second electric push rod, an opening and closing groove is provided on the inner wall of the separation tank, and the opening and closing plate is slidably connected to the inner wall of the opening and closing groove.

[0012] Preferably, the screw conveyor is connected to the separation tank, and the screw conveyor is arranged at an angle.

[0013] Preferably, the separation hole is communicated with the storage tank.

[0014] The technical effect of the utility model is that: a separation component is set, and after the biogas residue is squeezed by an extrusion plate, the biogas liquid in the biogas residue is separated, and then the extruded biogas residue is loosened by a loosening rod. The loosening process can destroy some lumps and tight structures in the biogas residue, making the biogas residue looser. When pressed again, this loose structure is conducive to more uniform extrusion of the biogas residue, reducing the unevenness and impurity content in the biogas residue; after the biogas residue is loosened and squeezed, the extrusion plate pushes the loosened biogas residue into the screw conveyor through the opened opening and closing plate. In the process of conveying the biogas residue, the spiral blades inside the screw conveyor are used to squeeze and loosen the biogas residue again. In the process of squeezing the biogas residue, the biogas liquid remaining in the biogas residue flows into the collection tank below through the separation hole, so that the biogas liquid is separated more thoroughly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the biogas slurry separation device based on HDPE pig manure fermentation in the utility model;

[0016] Figure 2 This is a schematic diagram of the separation tank, storage tank, hydraulic rod and extrusion plate of the utility model;

[0017] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 For this utility model Figure 2 Enlarged view of point B in the middle;

[0019] Figure 5 It is a schematic diagram of the second supporting frame, the first gear and the second gear of the utility model.

[0020] In the figure: 1, separation tank; 2, storage tank; 3, screw conveyor; 4, separation assembly; 401, hydraulic rod; 402, extrusion plate; 403, separation hole; 405, support box; 406, first electric push rod; 407, fixing plate; 408, loosening rod; 409, first support frame; 410, sleeve; 411, rotating shaft; 412, first gear; 413, second support frame; 414, motor; 415, second gear; 416, second electric push rod; 417, opening and closing plate. DETAILED DESCRIPTION

[0021] 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.

[0022] like Figure 1 - Figure 5 As shown, the utility model provides a biogas slurry separation device based on HDPE pig manure fermentation. It should be noted that the biogas residue containing pig manure needs to be effectively separated before fermentation, and then the separated biogas slurry is poured into a special fermentation tank covered with HDPE film. In order to ensure the smooth progress of the fermentation process, the surface of the biogas slurry needs to be completely covered with HDPE film.

[0023] The biogas slurry separation device includes a separation tank 1, a storage tank 2 and a screw conveyor 3 arranged on one side of the separation tank 1. Observation windows for observing the inside of the separation tank 1 are respectively arranged on both sides of the separation tank 1, so as to facilitate real-time monitoring of the internal situation. A feed end for biogas residue to enter the separation tank 1 is also arranged on the top of the separation tank 1, and the screw conveyor 3 is used to transport the biogas residue after extrusion separation. The storage tank 2 is used to collect the biogas separated from the biogas residue, and the screw conveyor 3 is provided with a discharge device for the biogas residue after separation. The biogas residue can be collected and transported uniformly for recycling by a transport vehicle or other equipment.

[0024] The inner wall of the separation tank 1 is provided with a separation component 4 for separating the biogas slurry, which is used to separate the biogas slurry from the biogas residue;

[0025] The separation assembly 4 includes a hydraulic rod 401, which is arranged on a side of the separation tank 1 away from the screw conveyor 3. An extrusion plate 402 is slidably arranged on the inner wall of the separation tank 1, and a side of the extrusion plate 402 close to the hydraulic rod 401 is fixed to the protruding end of the hydraulic rod 401;

[0026] The inner wall of the separation tank 1 is provided with a plurality of equidistant separation holes 403, and the separation holes 403 are connected to the storage tank 2. A support box 405 is provided on the top of the separation tank 1, and a first electric push rod 406 is rotatably provided on the surface of the support box 405. A fixing plate 407 is provided at the protruding end of the first electric push rod 406, and a plurality of equidistant loosening rods 408 are provided on the fixing plate 407. The inner wall of the support box 405 is connected to the separation tank 1, and the screw conveyor 3 is connected to the separation tank 1, and the screw conveyor 3 is inclined. When the biogas residue is squeezed and then transported by the screw conveyor 3, the inclined screw conveyor 3 squeezes and loosens the biogas residue again through the spiral blades. In the process of squeezing the biogas residue, the biogas liquid remaining in the biogas residue flows into the collection tank below through the separation holes 403;

[0027] A second electric push rod 416 is provided on the top of the separation tank 1, and an opening and closing plate 417 is provided at the protruding end of the second electric push rod 416. An opening and closing groove is provided on the inner wall of the separation tank 1, and the opening and closing plate 417 is slidably connected to the inner wall of the opening and closing groove;

[0028] First, pour the sludge into the separation tank 1, and drive the extended end of the second electric push rod 416 to extend, and the extended end of the second electric push rod 416 pushes the opening and closing plate 417 to slide downward along the inner wall of the opening and closing groove. When the opening and closing plate 417 slides to contact the separation tank 1, pour the sludge from the feeding end, and then drive the extended end of the hydraulic rod 401 to extend, and the extended end of the hydraulic rod 401 pushes the extrusion plate 402 to slide to one side of the opening and closing plate 417. The extrusion plate 402 squeezes the sludge during the sliding process, and the biogas liquid in the sludge is squeezed by the extrusion plate 402 during the extrusion process. The extruded biogas liquid flows into the storage tank 2 from the separation hole 403 for storage.

[0029] A first support frame 409 is provided on the surface of the support box 405, a sleeve 410 is provided on the outer side wall of the first electric push rod 406, a rotating shaft 411 is provided on the top of the sleeve 410, the rotating shaft 411 is rotatably connected to the first support frame 409 through a bearing, a first gear 412 is provided on the outer side wall of the rotating shaft 411, a second support frame 413 is provided on the top of the separation tank 1 near the first support frame 409, a motor 414 is provided on the surface of the second support frame 413, a second gear 415 is provided on the output end of the motor 414, and the second gear 415 is meshed and connected with the first gear 412;

[0030] After the biogas residue is squeezed, the extended end of the hydraulic rod 401 is driven to retract and the squeezing plate 402 is driven to slide to one side of the hydraulic rod 401. After the squeezing plate 402 is reset, the extended end of the first electric push rod 406 is driven to extend, and the extended end of the first electric push rod 406 moves downward with the loosening rod 408. When the screening rod contacts and inserts into the squeezed biogas residue, the motor 414 is driven to rotate, and the output end of the motor 414 rotates to drive the second gear 415 to rotate, and the second gear 415 rotates to drive the first gear 412 to rotate, and the first gear 412 rotates to drive the rotating shaft 411 to rotate, and the sleeve 410 is driven to rotate under the rotation of the rotating shaft 411, so that the first electric push rod 406 rotates, and the first electric push rod 406 rotates while driving the screening rod to rotate, and the biogas residue is loosened from the compressed state by the rotation of the screening rod;

[0031] Then the motor 414 is turned off to drive the extended end of the first electric push rod 406 to retract again. The extended end of the first electric push rod 406 retracts and resets the screening rod to the support box 405. Then the extended end of the hydraulic rod 401 is driven to extend. The extended end of the hydraulic rod 401 pushes the squeezing plate 402 again to squeeze the loosened biogas residue, thereby separating the biogas liquid in the loosened biogas residue. After being squeezed by the squeezing plate 402, the extended end of the second electric push rod 416 is driven to retract. The second electric push rod When the protruding end of 416 retracts into the opening and closing groove with the opening and closing plate 417, the screw conveyor 3 is driven to work, and then the protruding end of the hydraulic rod 401 is driven to extend. Under the push of the extrusion plate 402, the sludge is pushed into the screw conveyor 3. In the process of conveying the sludge by the screw conveyor 3, the spiral blades inside the screw conveyor 3 are used to squeeze and loosen the sludge again. In the process of squeezing the sludge, the biogas remaining in the sludge flows into the collection tank below through the separation hole 403, so that the biogas liquid is separated more thoroughly.

Claims

1. A biogas slurry separation device based on HDPE pig manure fermentation, comprising a separation tank (1), a storage tank (2), and a screw conveyor (3) arranged on one side of the separation tank (1). Features: The inner wall of the separation tank (1) is provided with a separation component (4) for separating the biogas slurry. The separation component (4) comprises a hydraulic rod (401). The hydraulic rod (401) is provided on a side of the separation tank (1) away from the screw conveyor (3). The inner wall of the separation tank (1) is slidably provided with an extrusion plate (402). The side of the extrusion plate (402) close to the hydraulic rod (401) is fixed to the protruding end of the hydraulic rod (401). The inner wall of the separation tank (1) is provided with a plurality of equidistant separation holes (403). The top of the separation tank (1) is provided with a support box (405). The surface of the support box (405) is rotatably provided with a first electric push rod (406). The protruding end of the first electric push rod (406) is provided with a fixing plate (407). The fixing plate (407) is provided with a plurality of equidistant loosening rods (408). The inner wall of the support box (405) is connected to the separation tank (1).

2. A biogas slurry separation device based on HDPE pig manure fermentation according to claim 1, Features: A first support frame (409) is arranged on the surface of the support box (405), a sleeve (410) is arranged on the outer wall of the first electric push rod (406), a rotating shaft (411) is arranged on the top of the sleeve (410), the rotating shaft (411) is rotatably connected to the first support frame (409) through a bearing, a first gear (412) is arranged on the outer wall of the rotating shaft (411), a second support frame (413) is arranged on the top of the separation tank (1) near the first support frame (409), a motor (414) is arranged on the surface of the second support frame (413), a second gear (415) is arranged at the output end of the motor (414), and the second gear (415) is meshedly connected with the first gear (412).

3. A biogas slurry separation device based on HDPE pig manure fermentation according to claim 2, Features: A second electric push rod (416) is arranged on the top of the separation tank (1), an opening and closing plate (417) is arranged at the protruding end of the second electric push rod (416), an opening and closing groove is arranged on the inner wall of the separation tank (1), and the opening and closing plate (417) is slidably connected to the inner wall of the opening and closing groove.

4. A biogas slurry separation device based on HDPE pig manure fermentation according to claim 1, Features: The screw conveyor (3) is connected to the separation tank (1), and the screw conveyor (3) is arranged in an inclined manner.

5. A biogas slurry separation device based on HDPE pig manure fermentation according to claim 2, Features: The separation hole (403) is in communication with the storage tank (2).

Images