CN111215429B - Ecological circulating device for harmless treatment of biogas slurry and biogas residues - Google Patents

Abstract

The invention discloses an ecological circulation device for harmless treatment of biogas slurry and biogas residue, comprising a separation component, a biogas residue processing component, a biogas slurry fermentation component and a control box. The motor, the centrifugal cylinder is set inside the separation box, the blanking member is set inside the separation box, and the power motor provides power for the centrifugal cylinder; the biogas residue treatment component includes a device box, a squeeze plate and a drive motor, and the device box is set at the lower end of the separation box, The squeeze plate is arranged inside the device box, and the squeeze plate is provided with a squeeze roller, and the driving motor provides power for the squeeze roller; the biogas slurry fermentation assembly includes a fermentation drum, a heating drum and a stirrer, and the fermentation drum is arranged inside the device box. The heating drum is arranged inside the fermentation drum, the agitator is arranged inside the heating drum, and the control box is electrically connected with the power motor, the driving motor and the agitator; the structure design of the invention is reasonable, and the biogas slurry and residue can be recycled by the invention. Suitable for mass promotion.

Description

Ecological circulating device for harmless treatment of biogas slurry and biogas residues

Technical Field

The invention relates to the technical field of biogas slurry and biogas residue treatment, in particular to an ecological circulating device for innocent treatment of biogas slurry and biogas residue.

Background

At present, as the state enters the new stage of sustainable development with urban and rural areas, a series of policy measures for supporting three farmers are provided, especially the range and scale are continuously enlarged by implementing biogas engineering, and the biogas treatment of excrement reaches a considerable scale. Meanwhile, a large amount of biogas residue and biogas slurry wastewater is produced, and the sewage and organic matter content of the biogas residue and biogas slurry after solid-liquid separation is still high and cannot be directly discharged. With the implementation of environmental protection of the aquaculture industry, the treatment of biogas residues and biogas slurry in the farms becomes a difficult problem restricting the healthy development of the aquaculture industry.

At present, biogas slurry and biogas residue are subjected to innocent treatment mainly by separating biogas slurry and biogas residue by using separation equipment and then fermenting the biogas slurry, so that the separated biogas residue and biogas slurry are reused in the field of agricultural production, and the ecological cycle of the biogas slurry and biogas residue is realized. However, the existing biogas slurry and residue harmless treatment device has low separation efficiency, and the device is easy to generate great noise and has poor reliability in the operation process; in addition, some biogas slurry and residue separation devices are easy to cause the blockage of a filter screen in the use process, and the normal operation of treatment equipment is influenced.

Disclosure of Invention

Aiming at the technical problems, the invention provides an ecological circulating device for harmless treatment of biogas slurry and biogas residues, which can realize resource recycling.

The technical scheme of the invention is as follows: an ecological circulation device for innocent treatment of biogas slurry and biogas residues comprises a separation component, a biogas residue treatment component, a biogas slurry fermentation component and a control box; the separation assembly comprises a separation box, a centrifugal cylinder, a blanking component and a power motor, wherein a feed hopper is arranged at the upper end of the separation box, a fixed seat is arranged at the lower end of the separation box, the upper edge of the centrifugal cylinder is movably clamped with the inner wall of the separation box, a hollow shaft sleeve is arranged at the bottom of the centrifugal cylinder and penetrates through the separation box, a first belt wheel is arranged on the hollow shaft sleeve, the blanking component is fixedly clamped at the inner top of the separation box, a hollow pipe is arranged at the lower end of the blanking component and sleeved inside the hollow shaft sleeve, the power motor is fixedly arranged on the fixed seat, a second belt wheel is arranged on an output shaft of the power; the biogas residue treatment assembly comprises a device box, an extrusion plate and a driving motor, wherein the device box is arranged at the lower end of the separation box, the device box is communicated with the separation box through a hollow pipe, a material taking door is hinged to the side surface of the device box, the extrusion plate is obliquely arranged in the device box, the upper end of the extrusion plate is fixedly connected with the device box through a connecting frame, the lower end of the extrusion plate is fixedly connected with the bottom in the device box, an extrusion roller is rotatably arranged on the extrusion plate, a third belt wheel is arranged on the extrusion roller, the driving motor is fixedly arranged on the side wall of the device box, a fourth belt wheel is arranged on an output shaft of the driving motor, and the fourth belt wheel and; the biogas slurry fermentation assembly comprises a fermentation cylinder, a heating cylinder and a stirrer, the fermentation cylinder is fixedly arranged in the device box, the heating cylinder is sleeved in the fermentation cylinder, a heating pipe is arranged between the heating cylinder and the fermentation cylinder, the heating pipe is connected with an external heat exchange device, the heating cylinder is connected with the separation box through a liquid conveying pipe, a liquid discharge port and an air exhaust port are arranged on the heating cylinder, and the stirrer is vertically arranged at the top in the heating cylinder; the control box is electrically connected with the power motor, the driving motor and the stirrer, and the power motor, the driving motor and the stirrer are powered by an external power supply.

Further, the blanking component comprises a receiving disc, a blanking pipe, a shifting plate and a mounting frame, the mounting frame is fixedly arranged at the top in the separation box, a material distribution motor is arranged at the bottom of the mounting frame, a driving gear is arranged on an output shaft of the material distribution motor, the driving gear is meshed with a threaded rod, the blanking pipe is fixedly arranged at the lower end of the material distribution motor, a feeding groove is vertically arranged on the side wall of the blanking pipe, the receiving disc is fixedly arranged at the bottom of the blanking pipe, a sliding groove is arranged on the receiving disc, a hollow pipe is arranged on the receiving disc and is communicated with the blanking pipe, the upper end of the shifting plate is in threaded connection with the threaded rod through a bolt block, the lower end of the shifting plate is movably clamped with the sliding groove, the shifting plate can be attached to the feeding groove, after the biogas slurry and biogas residues are centrifuged, the control box controls the material distribution motor, and (4) stirring the centrifuged biogas residues into a feeding groove on the blanking pipe, and allowing the biogas residues to fall into a device box for extrusion treatment.

Furthermore, 4 feeding grooves are uniformly formed in the side wall of the blanking pipe, and the number of the material stirring plates is consistent with that of the feeding grooves; through setting up 4 feed chutes, be favorable to the interior quick entering device incasement of natural pond sediment after the separation box centrifugation, improve work efficiency.

Furthermore, 4 scraping plates are uniformly arranged at the edge of the material receiving plate, and damping springs are arranged at the joints of the scraping plates and the material receiving plate; through the arrangement of the scraping plate, when the centrifugal cylinder rotates, the scraping plate scrapes away the biogas residues attached to the inner wall of the centrifugal cylinder, so that the biogas residues are prevented from blocking a centrifugal hole of the centrifugal cylinder, and the content of biogas slurry in the biogas residues is greatly reduced.

Furthermore, the top end in the device box is provided with a material distribution box, the material distribution box is communicated with the hollow pipe, the lower end of the material distribution box is provided with a discharge hole, a material guide spiral is arranged in the material distribution box, and the material distribution box and the material distribution spiral are arranged, so that the transmission efficiency of biogas residues is improved, and the treatment efficiency of the device is improved.

Further, the stripper plate is provided with 3, and 3 stripper plates all incline to set up in the device incasement portion, and the discharge gate is provided with 3, and the discharge gate corresponds with the stripper plate upper and lower position, through setting up three stripper plate, can effectively avoid getting into the inside natural pond sediment of device incasement to pile up in a large number and influence the efficiency of stripper plate.

Furthermore, the side face of the extrusion plate is hinged with a movable plate, a clamping piece and a shifting block are arranged on the movable plate, the movable plate is clamped with the extrusion plate through the clamping piece, and the movable plate is arranged, so that the extruded biogas residues are conveniently removed from the extrusion plate, the continuity of biogas residue and biogas slurry treatment is improved, and the working efficiency is further improved.

Furthermore, a filter box is arranged at the top end of the heating cylinder, the filter box is communicated with the infusion tube, and the filter box is arranged, so that fine biogas residues in the biogas slurry can be filtered again, fermentation of the biogas slurry is facilitated, and the utilization rate of the biogas slurry is improved.

The working principle of the invention is as follows: when the device is used, the device is connected with an external power supply device, a mixture of biogas slurry and biogas residues is introduced into a separation box through a feed hopper, a control box controls a power motor to start, the power motor drives a centrifugal cylinder to rotate through a belt, the biogas slurry and biogas residues are subjected to centrifugal treatment, and the centrifuged biogas slurry enters a heating cylinder through a liquid conveying pipe; the centrifuged biogas residues are accumulated on the material receiving disc, the control box controls the material distributing motor to start, the material distributing motor drives the threaded rod to rotate, the material distributing motor drives the material stirring plate to reciprocate in the sliding groove on the material receiving disc, the centrifuged biogas residues are stirred into the feeding groove on the discharging pipe, the biogas residues fall into the material distributing box in the device box through the discharging pipe, the biogas residues fall onto each extrusion plate through the discharging port under the action of the material guiding screw, the control box controls the driving motor to start, the extrusion rollers are further controlled to extrude the biogas residues, and the extruded biogas residues are taken out through the material taking door and can be used for farmland fertilization; the biogas slurry is filtered by the filter box before entering the heating cylinder, then enters the heating cylinder for fermentation, is exhausted through the exhaust port in the fermentation process, and is discharged through the liquid outlet after the fermentation is finished, so that the biogas slurry can be used for farmland irrigation or aquaculture.

Compared with the prior art, the invention has the beneficial effects that: the invention has compact structure and reasonable design, can realize high-efficiency treatment on the biogas slurry and the biogas residues, ensures that the treated biogas slurry and the biogas residues can be applied to the field of agricultural production again, realizes ecological cyclic utilization of the biogas slurry and the biogas residues, and improves the utilization rate of resources; through setting up the unloading component, effectively provide separation assembly's separation efficiency and separation effect, effectively avoid because of the filter screen jam problem that the device used for a long time and lead to, natural pond liquid organic matter concentration after the processing is showing and is reducing, has avoided secondary pollution, and natural pond sediment fertilizer effect after the processing obviously increases, is favorable to the growth of crops, has promoted agricultural development.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an external structural view of the present invention;

FIG. 3 is a schematic view of the connection of the kickoff plate of the present invention to the material distribution motor;

FIG. 4 is a schematic view of the connection of the kickoff plate and the blanking tube of the present invention;

FIG. 5 is a schematic view of the connection of the scraper plate and the receiving tray of the present invention;

FIG. 6 is a schematic view of the construction of the compression plate of the present invention;

FIG. 7 is a schematic view of the connection between the movable plate and the pressing plate according to the present invention;

wherein, 1-separation component, 10-separation box, 100-feed hopper, 101-fixed seat, 11-centrifugal cylinder, 110-hollow shaft sleeve, 111-belt wheel I, 12-blanking component, 120-hollow pipe, 121-receiving disc, 1210-sliding groove, 122-blanking pipe, 1220-feed groove, 123-shifting plate, 1230-bolt block, 124-mounting rack, 125-material dividing motor, 1250-threaded rod, 126-scraping plate, 1260-damping spring, 13-power motor, 130-belt wheel II, 131-belt, 2-biogas residue processing component, 20-device box, 200-material taking door, 21-extrusion plate, 210-extrusion roller, 2100-belt wheel III, 211-movable plate, 2110-card, 2111-shifting block, 22-driving motor, 220-belt wheel four, 23-connecting frame, 24-material separating box, 240-material outlet, 25-material guiding spiral, 3-biogas slurry fermentation component, 30-fermentation cylinder, 31-heating cylinder, 310-liquid conveying pipe, 311-liquid outlet, 312-gas outlet, 313-filtering box, 32-stirrer and 33-heating pipe.

Detailed Description

Example (b): as shown in fig. 1, 2, 3, 4 and 5, the ecological circulating device for harmless treatment of biogas slurry and biogas residue comprises a separation component 1, a biogas residue treatment component 2, a biogas slurry fermentation component 3 and a control box; the separation component 1 comprises a separation box 10, a centrifugal cylinder 11, a blanking component 12 and a power motor 13, wherein the upper end of the separation box 10 is provided with a feed hopper 100, the lower end of the separation box 10 is provided with a fixed seat 101, the upper edge of the centrifugal cylinder 11 is movably clamped with the inner wall of the separation box 10, the bottom of the centrifugal cylinder 11 is provided with a hollow shaft sleeve 110, the hollow shaft sleeve 110 penetrates through the separation box 10, the hollow shaft sleeve 110 is provided with a belt wheel 111, the blanking component 12 is fixedly clamped at the inner top of the separation box 10, the lower end of the blanking component 12 is provided with a hollow pipe 120, the hollow pipe 120 is sleeved inside the hollow shaft sleeve 110, the blanking component 12 comprises a material receiving disc 121, a blanking pipe 122, a material shifting plate 123 and a mounting frame 124, the mounting frame 124 is fixedly arranged at the inner top of the separation box 10, the, the blanking pipe 122 is fixedly arranged at the lower end of the material distributing motor 125, the material distributing motor 125 adopts an 18G22G28G32G40G50G type speed reducing motor produced by a Shangming Motor factory in Wenling City, a material feeding groove 1220 is vertically arranged on the side wall of the blanking pipe 122, the material receiving disc 121 is fixedly arranged at the bottom of the blanking pipe 122, a sliding groove 1210 is arranged on the material receiving disc 121, a hollow pipe 120 is arranged on the material receiving disc 121 and is communicated with the blanking pipe 122, the upper end of a material shifting plate 123 is in threaded connection with a threaded rod 1250 through a bolt block 1230, the lower end of the material shifting plate 123 is movably clamped with the sliding groove 1210, the material shifting plate 123 can be attached to the material feeding groove 1220, after the biogas slurry and the biogas residues are centrifuged, the material distributing motor 125 is controlled to start through a control box, the material distributing motor 125 drives the threaded rod 1250 to rotate to drive the material shifting plate 123 to reciprocate in the sliding groove 1210 on the material receiving disc 121, the centrifuged biogas residues are shifted into, the side wall of the blanking pipe 122 is uniformly provided with 4 feeding grooves 1220, and the number of the material stirring plates 123 is consistent with that of the feeding grooves 1220; by arranging the 4 feeding grooves 1220, the biogas residues centrifugally treated in the separation box 10 can be favorably and quickly fed into the device box 20, and the working efficiency is improved; 4 scraping plates 126 are uniformly arranged at the edge of the receiving tray 121, and damping springs 1260 are arranged at the joints of the scraping plates 126 and the receiving tray 121; by arranging the scraping plate 126, when the centrifugal cylinder 11 rotates, the scraping plate 126 scrapes the biogas residues attached to the inner wall of the centrifugal cylinder 11, so that the biogas residues are prevented from blocking the centrifugal holes of the centrifugal cylinder 11, and the content of biogas slurry in the biogas residues is greatly reduced; the power motor 13 is a YE2-132M-4 type three-phase asynchronous motor produced by Zhejiang Fugui city motor Co., Ltd, the power motor 13 is fixedly arranged on the fixed seat 101, the output shaft of the power motor 13 is provided with a second belt wheel 130, and the second belt wheel 130 and the first belt wheel 111 are transmitted by a belt 131;

as shown in fig. 1, 6 and 7, the biogas residue processing assembly 2 comprises a device box 20, an extrusion plate 21 and a driving motor 22, wherein the device box 20 is arranged at the lower end of a separation box 10, the device box 20 is communicated with the separation box 10 through a hollow pipe 120, a material taking door 200 is hinged on the side surface of the device box 20, the extrusion plate 21 is obliquely arranged in the device box 20, the upper end of the extrusion plate 21 is fixedly connected with the device box 20 through a connecting frame 23, the lower end of the extrusion plate 21 is fixedly connected with the inner bottom of the device box 20, an extrusion roller 210 is rotatably arranged on the extrusion plate 21, a third belt wheel 2100 is arranged on the extrusion roller 210, the driving motor 22 adopts a three-phase asynchronous motor produced by the san yang electromechanical limited company in huangshan city, the driving motor 22 is fixedly arranged on the side wall of the device box 20, a fourth belt wheel 220 is arranged on an output shaft of the driving motor 22; the top end in the device box 20 is provided with a material distribution box 24, the material distribution box 24 is communicated with the hollow pipe 120, the lower end of the material distribution box 24 is provided with a material outlet 240, a material guide screw 25 is arranged in the material distribution box 24, and the material distribution box 24 and the material distribution screw 25 are arranged, so that the transmission efficiency of the biogas residues is improved, and the treatment efficiency of the device is improved; 3 extrusion plates 21 are arranged, 3 extrusion plates 21 are obliquely arranged in the device box 20, 3 discharge ports 240 are arranged, the discharge ports 240 correspond to the extrusion plates 21 in the vertical position, and the three extrusion plates 21 are arranged, so that the phenomenon that a large amount of biogas residues entering the device box 20 are accumulated to influence the efficiency of the extrusion plates 21 can be effectively avoided; the side surface of the extrusion plate 21 is hinged with a movable plate 211, the movable plate 211 is provided with a clamping piece 2110 and a shifting block 2111, the movable plate 211 is clamped with the extrusion plate 21 through the clamping piece 2110, and the movable plate 211 is arranged to facilitate removal of the extruded biogas residues from the extrusion plate 21, so that the continuity of biogas residue and biogas slurry treatment is improved, and further the working efficiency is improved;

as shown in fig. 1, the biogas slurry fermentation assembly 3 comprises a fermentation cylinder 30, a heating cylinder 31 and a stirrer 32, wherein the fermentation cylinder 30 is fixedly arranged inside the device box 20, the heating cylinder 31 is sleeved inside the fermentation cylinder 30, a heating pipe 33 is arranged between the heating cylinder 31 and the fermentation cylinder 30, the heating pipe 33 is connected with an external heat exchange device, the heating cylinder 31 is connected with the separation box 10 through a liquid conveying pipe 310, a liquid discharge port 311 and an air discharge port 312 are arranged on the heating cylinder 31, and the stirrer 32 is vertically arranged at the top inside the heating cylinder 31; the top end of the heating cylinder 31 is provided with a filter box 313, the filter box 313 is communicated with the infusion tube 310, the filter box 313 is arranged, fine biogas residues in biogas slurry can be filtered again, fermentation of the biogas slurry is facilitated, the utilization rate of the biogas slurry is improved, the control box adopts a PXK type electrical control cabinet produced by Nanyang Zhongtong explosion-proof motor electric appliance company Limited, the control box is electrically connected with the power motor 13, the driving motor 22 and the stirrer 32, and the power motor 13, the driving motor 22 and the stirrer 32 are powered by an external power supply.

When the device is used, the device is connected with an external power supply device, a mixture of biogas slurry and biogas residues is introduced into the separation box 10 through the feed hopper 100, the power motor 13 is controlled by the control box to be started, the power motor 13 drives the centrifugal cylinder 11 to rotate through the belt 131, the biogas slurry and biogas residues are subjected to centrifugal treatment, and the centrifuged biogas slurry enters the heating cylinder 31 through the infusion tube 310; the centrifuged biogas residues are accumulated on the receiving disc 121, the control box controls the material distributing motor 125 to be started, the material distributing motor 125 drives the threaded rod 1250 to rotate, the material shifting plate 123 is driven to reciprocate in the sliding groove 1210 on the receiving disc 121, the centrifuged biogas residues are shifted into the material feeding groove 1220 on the blanking pipe 122, the biogas residues fall into the material distributing box 24 in the device box 20 through the blanking pipe 122, the biogas residues fall onto each extrusion plate through the material discharging hole 240 under the action of the material guiding screw 25, the control box controls the driving motor 22 to be started, the extrusion rollers 210 are further controlled to extrude the biogas residues, and the extruded biogas residues are taken out through the material taking door 200 and can be used for farmland fertilization; the biogas slurry is filtered by the filter box 313 before entering the heating cylinder 31, then enters the heating cylinder 31 for fermentation, is exhausted through the exhaust port 312 in the fermentation process, and is discharged through the liquid outlet 311 after the fermentation is finished, so that the biogas slurry can be used for farmland irrigation or aquaculture.

Claims (7)

1. An ecological circulation device for harmless treatment of biogas slurry and biogas residue, characterized in that it comprises a separation component (1), a biogas residue processing component (2), a biogas slurry fermentation component (3) and a control box; the separation The assembly (1) comprises a separation box (10), a centrifugal drum (11), a feeding member (12) and a power motor (13), the upper end of the separation box (10) is provided with a feeding hopper (100), and the separation box ( 10) A fixing seat (101) is provided at the lower end, the upper edge of the centrifuge cylinder (11) is movably clamped with the inner wall of the separation box (10), and a hollow shaft sleeve (110) is arranged at the bottom of the centrifuge cylinder (11), and the The hollow shaft sleeve (110) runs through the separation box (10), a pulley (111) is arranged on the hollow shaft sleeve (110), and the blanking member (12) is fixedly clamped on the inner top of the separation box (10), The lower end of the blanking member (12) is provided with a hollow tube (120), the hollow tube (120) is sleeved inside the hollow shaft sleeve (110), and the power motor (13) is fixedly arranged on the fixing seat (101), The output shaft of the power motor (13) is provided with a second pulley (130), and the second pulley (130) and the first pulley (111) are driven by a belt (131); the biogas residue processing assembly (2) ) comprises a device box (20), a squeeze plate (21) and a drive motor (22), the device box (20) is arranged at the lower end of the separation box (10), between the device box (20) and the separation box (10) The hollow tube (120) is connected through, the side of the device box (20) is hinged with a reclaiming door (200), the pressing plate (21) is obliquely arranged inside the device box (20), and the pressing plate (21) The upper end is fixedly connected with the device box (20) through the connecting frame (23), the lower end of the pressing plate (21) is fixedly connected with the inner bottom of the device box (20), and the pressing plate (21) is rotatably provided with a pressing roller (210). ), the squeeze roller (210) is provided with a pulley three (2100), the drive motor (22) is fixedly arranged on the side wall of the device box (20), and the output shaft of the drive motor (22) is provided with The fourth pulley (220) is driven by a belt between the fourth pulley (220) and the third pulley (2100); the biogas slurry fermentation assembly (3) includes a fermentation drum (30), a heating drum (31) and agitator (32), the fermentation drum (30) is fixedly arranged inside the device box (20), the heating drum (31) is sleeved inside the fermentation drum (30), the heating drum (31) and the fermentation drum (30) A heating pipe (33) is arranged between the heating pipes (33) and the external heat exchange device, the heating cylinder (31) is connected with the separation box (10) through the infusion pipe (310), and the heating cylinder (31) is A liquid discharge port (311) and an exhaust port (312) are provided, and the agitator (32) is vertically arranged on the top of the heating cylinder (31); the control box is connected to a power motor (13) and a drive motor (22). ) and the stirrer (32) are electrically connected. 2 . The ecological circulation device for harmless treatment of biogas slurry and residue according to claim 1 , wherein the feeding member ( 12 ) comprises a feeding tray ( 121 ) and a feeding pipe ( 122 ). 3 . , a feeding plate (123) and an installation frame (124), the installation frame (124) is fixedly arranged on the top of the separation box (10), and a material distribution motor (125) is arranged at the bottom of the installation frame (124), and the separation The output shaft of the feeding motor (125) is provided with a driving gear, the driving gear is meshed with a threaded rod (1250), the feeding pipe (122) is fixedly arranged at the lower end of the feeding motor (125), and the feeding pipe ( 122) A feeding groove (1220) is vertically arranged on the side wall, the feeding tray (121) is fixedly arranged at the bottom of the feeding tube (122), and a sliding groove (1210) is set on the feeding tray (121), so The hollow tube (120) is arranged on the material receiving tray (121) and communicates with the feeding pipe (122), and the upper end of the feeding plate (123) is threaded with the threaded rod (1250) through the bolt block (1230) In connection, the lower end of the feeding plate (123) is movably engaged with the sliding groove (1210), and the feeding plate (123) can fit with the feeding groove (1220). 3. The ecological circulation device for the harmless treatment of biogas slurry and residue according to claim 2, characterized in that, 3-5 feeding grooves ( 1220), the number of the feeding plates (123) is consistent with the number of the feeding troughs (1220). 4. The ecological circulation device for harmless treatment of biogas slurry and residue according to claim 2, characterized in that 3-6 scrapers (126) are evenly arranged at the edge of the receiving tray (121). ), a damping spring (1260) is provided at the connection between the scraper plate (126) and the material receiving plate (121). 5. The ecological circulation device for the harmless treatment of biogas slurry and residue according to claim 1, characterized in that a material distribution box (24) is arranged at the inner top of the device box (20), and the material distribution The box (24) is communicated with the hollow tube (120), a material outlet (240) is arranged at the lower end of the material distribution box (24), and a material guide screw (25) is arranged inside the material distribution box (24). 6 . The ecological circulation device for harmless treatment of biogas slurry and residue according to claim 5 , characterized in that, the squeeze plates ( 21 ) are provided with 2-4 squeeze plates, and 2-4 squeeze plates. 7 . (21) are obliquely arranged inside the device box (20), the discharge ports (240) are provided with 2-4, and the discharge ports (240) correspond to the upper and lower positions of the extrusion plate (21). 7 . The ecological circulation device for harmless treatment of biogas slurry and residue according to claim 1 , wherein a movable plate (211) is hinged on the side of the pressing plate (21), and the movable plate ( 211) is provided with a card (2110) and a dial (2111), and the movable plate (211) is clamped to the pressing plate (21) through the card (2110).

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