Biogas collection and separation equipment

Abstract

The invention relates to the technical field of biological agriculture, in particular to biogas collection and separation equipment which comprises a separation tank, a detachable sealing plate is mounted at the top of the separation tank, a driving part is mounted at the bottom of the inner side of the separation tank, and an overturning part is mounted at the lower end in the separation tank. Biogas is conveyed into the sealing cover and the separation tank from the gas valve port, so that the biogas sequentially passes through the conical fine filter plate and the separation filter piece, impurities and other chemical substances in the biogas can be separated and purified through mutual matching of the conical fine filter plate and the separation filter piece, and during the period, the separated biogas is extracted through the sucking pump; and the biogas is conveyed into the sealing cover again through the return pipe, so that the circulating flow of the biogas is realized, the circulating separation of the biogas is further realized, and meanwhile, the biogas is monitored in real time through the integrated monitoring box, so that the biogas is purified to the maximum extent, the purification quality is improved, and the possibility that the biogas does not reach the standard after being separated and purified is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of bio-agriculture, and particularly to a biogas collection and separation device. Background Art

[0002] Biogas is a combustible gas produced by the fermentation of organic substances in an anaerobic environment under certain conditions of temperature, humidity, and pH through the action of microorganisms. The biogas fermentation process refers to the technology of treating organic waste, wastewater, etc. and producing biogas through the activities of biogas fermentation microorganisms under anaerobic conditions, also known as anaerobic digestion process. The main raw materials for producing biogas are mostly agricultural wastes such as plant straws and animal manures. Therefore, during biogas processing, it is necessary to separate and purify the substances contained therein.

[0003] Currently, most separation technologies first send the biogas fermented from agricultural wastes through a gas pipeline into different biogas separation tanks, and separate water, carbon dioxide, siloxane, and impurities from the biogas through separation technical means to reduce their contents, so as to carry out a pipeline-style purification treatment on the biogas.

[0004] However, during the pipeline-style purification of biogas, when the biogas passes through different separation tanks, the biogas as a whole is in a flowing state. In this state, the residence time of the biogas inside the separation tank is not long. After insufficient separation, it will be transferred to the next separation tank for subsequent separation, causing the water and other substances existing in the biogas to be transferred synchronously, resulting in other components remaining in the finally collected biogas, and the phenomenon that the component content in the biogas does not meet the standard, affecting the overall purity of the finally collected biogas and being unfavorable for the subsequent processing and production of biogas. Summary of the Invention

[0005] (I) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the present invention provides a biogas collection and separation device, which has the advantage of being able to perform cyclic separation on biogas, so as to maximize the purification of biogas, reduce the phenomenon that the components in the biogas do not meet the standard, and improve the separation quality and efficiency.

[0007] (II) Technical Solutions

[0008] To achieve the above object, the present invention provides the following technical solution: A biogas collection and separation device, including a separation tank, a detachable closing plate is installed at the top of the separation tank, and a driving member is installed at the inner bottom of the separation tank. A turning top member is installed at the lower end inside the separation tank, and the turning top member is in transmission connection with the driving member. A filtering member is placed on the top of the turning top member. A detachable sealing cover is installed on the top of the closing plate, and a circulation port is opened in the middle of the closing plate. A conical fine filtering plate is installed on one side of the closing plate close to the sealing cover. An air valve port is fixedly connected to the top of the sealing cover. An electromagnetic valve is fixedly connected to the bottom of the separation tank. The exhaust end of the electromagnetic valve is fixedly connected to a delivery pipe. One end of the delivery pipe is fixedly connected to a collection tank. An integrated monitoring box is fixedly connected to one side of the lower end of the separation tank. An air extraction pump is fixedly connected to the other side of the lower end of the separation tank. The exhaust end of the air extraction pump is fixedly connected to a return pipe. One end of the return pipe is communicated with the sealing cover;

[0009] Both sides of the inner wall of the separation tank are slidably connected with linkage rods. One end of the linkage rod far from the sealing cover is in contact with the driving member. Vibration members are fixedly connected to both sides of the top of the closing plate. A detachable water filtering member is installed at the upper end inside the separation tank. The water filtering member and the filtering member are on the same central axis.

[0010] Biogas enters the inside of the sealing cover through the air valve port and enters the separation tank along the circulation port through the conical fine filtering plate. At this time, the air extraction pump extracts the biogas, making the biogas flow downward. The biogas passes through the water filtering member and the filtering member in turn, and then enters the return pipe and is sent into the sealing cover again, making the biogas form a circulating flow. During this period, the integrated monitoring box detects the biogas.

[0011] Preferably, the filtering member includes a plurality of filtering boxes slidably connected inside the separation tank. A detachable limiting mesh plate is installed on the top of the filtering box. Elastic members are fixedly connected between adjacent two filtering boxes. The inside of the filtering box is filled with molecular sieve particles.

[0012] Preferably, the elastic member includes a sleeve rod fixedly connected to one side of the filtering box. A first spring is arranged inside the sleeve rod, and the first spring is fixedly connected between the end close to the sleeve rod and the sleeve rod. The end of the first spring far from the sleeve rod is fixedly connected to an inner rod.

[0013] Preferably, the driving member includes a servo motor fixedly connected to the bottom end of one side of the separation tank. The output end of the servo motor is fixedly connected to a rotating shaft. The rotating shaft is rotatably connected to the separation tank. Centrifugal discs are symmetrically arranged on the rotating shaft, and the centrifugal discs are in contact with the linkage rods. A driving groove is opened on one side of the centrifugal disc.

[0014] Preferably, the top-turning member includes a support plate symmetrically penetrating through the inner bottom end of the separation tank. One side of the support plate close to the centrifugal disc is fixedly connected with a driving rod, and the driving rod is in clamping and sliding connection with the driving groove. One end of the support plate away from the driving rod is fixedly connected with a circular top seat, and the top of the circular top seat is coated with a rubber layer.

[0015] Preferably, the vibrating member includes a U-shaped base fixedly connected to one side of the top of the closing plate. A bent driving plate is rotatably connected inside the U-shaped base. One end of the bent driving plate is fixedly connected with a striking rod. One side inside the U-shaped base is fixedly connected with a second spring, and one end of the second spring away from the U-shaped base is fixedly connected with one side of the bent driving plate.

[0016] Preferably, the linkage rod is in clamping and sliding connection with the closing plate. One end of the striking rod is located directly above the linkage rod. A roller is rotatably connected to the bottom of the linkage rod, and the roller abuts against the arc outer wall of the centrifugal disc.

[0017] Preferably, the water filtering member includes a water storage box installed at the upper end inside the separation tank. A water filtering membrane is installed on the top of the water storage box, and air vent grooves are formed on the outer side of the water storage box. One side of the inner wall of the air vent groove is fixedly connected with a clamping member.

[0018] Preferably, the clamping member includes a sleeve box fixedly connected to one side of the inner wall of the air vent groove. One side inside the sleeve box is fixedly connected with a third spring, and a buckling member is slidably installed inside the sleeve box. One end of the third spring abuts against the buckling member.

[0019] Preferably, the buckling member includes a clamping block slidably connected inside the sleeve box. One end of the top of the clamping block is fixedly connected with a dial. A sliding groove is formed on one side of the top of the sleeve box, and the dial is slidably installed inside the sliding groove. A clamping groove corresponding to the clamping block is formed on the inner upper end of the separation tank.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. In the present invention, biogas is transported into the inside of the sealing cover and the separation tank from the gas valve opening, so that the biogas passes through the conical fine filter plate and the sub-filtering member in sequence. Through the mutual cooperation of the conical fine filter plate and the sub-filtering member, impurities and other chemical substances in the biogas can be separated and purified. During this period, the separated biogas is extracted by an air extraction pump and then transported back to the sealing cover through a reflux pipe, so as to realize the circulating flow of the biogas, and further realize the circulating separation of the biogas. At the same time, the biogas is monitored in real time through the integrated monitoring box, so that the biogas is purified to the greatest extent, the purification quality is improved, and the possibility of non-compliance after the separation and purification of the biogas is reduced;

[0022] 2. When the biogas is subjected to cyclic separation, the operation of the driving member causes the internal structure of the driving member to drive the top-turning member, driving the top-turning member to move up and down. When the top-turning member moves, it can drive the sub-filtering member, causing multiple sub-filtering boxes to be forced to shake up and down, thereby turning the molecular sieve particles in the sub-filtering boxes, increasing the contact area between the molecular sieve particles and the biogas, improving the adsorption efficiency of chemical substances in the biogas, and thus enhancing the separation and purification efficiency of the biogas. At the same time, the shaking of the sub-filtering boxes can prevent the molecular sieve particles inside from accumulating, avoiding the phenomenon that the voids between the particles are reduced due to accumulation, which affects the biogas circulation, and thus maintaining the circulation efficiency of the biogas cycle and improving the cyclic separation effect.

[0023] 3. While the driving member is operating, its internal structure can synchronously drive the linkage rod, causing the linkage rod to reciprocally drive the vibrating member. When the vibrating member receives the driving force, its internal structure can intermittently strike the conical fine filter plate, causing the conical fine filter plate to vibrate, so that the impurities adhering to the conical fine filter plate are shaken off and fall along the inclined structure of the conical fine filter plate, thereby cleaning the conical fine filter plate, reducing the possibility of impurities adhering to the conical fine filter plate and clogging the filter holes, maintaining the biogas circulation efficiency, and at the same time, improving the efficiency and purification quality of the cyclic separation.

[0024] 4. When the biogas is subjected to circulation separation, it will pass through the water filtering member. The water filtering membrane in the water filtering member can separate the moisture in the biogas and store the separated moisture in the water storage box, while the separated biogas can flow downward through the ventilation groove, thereby achieving the preliminary dehydration of the biogas, improving the dryness of the biogas, preventing the molecular sieve particles inside the sub-filtering boxes from adsorbing too much moisture and accelerating the saturation speed, increasing the adsorption duration of the molecular sieve particles, maintaining their adsorption effect on chemical substances, reducing the frequency of replacing the molecular sieve particles, and thus enhancing the separation efficiency of the biogas. Brief Description of the Drawings

[0025] Figure 1 It is a schematic diagram of the overall device of the present invention.

[0026] Figure 2 It is a partial cross-sectional view of the separation tank of the present invention.

[0027] Figure 3 It is a structural diagram of the interior of the sealing cover of the present invention.

[0028] Figure 4 It is a structural diagram of the sub-filtering member of the present invention.

[0029] Figure 5 It is a structural diagram of the elastic member of the present invention.

[0030] Figure 6 It is a connection structural diagram of the top-turning member and the driving member of the present invention.

[0031] Figure 7 This is a schematic structural diagram of the top-flipping part in the present invention.

[0032] Figure 8 This is a schematic structural diagram of the vibration-impacting part in the present invention.

[0033] Figure 9 This is a schematic structural diagram of the water-filtering part in the present invention.

[0034] Figure 10 This is a schematic structural diagram of the clamping part in the present invention.

[0035] In the figure: 1. Separation tank; 2. Sealing cover; 3. Air valve port; 4. Linkage rod; 5. Top-flipping part; 6. Sub-filtering part; 7. Delivery pipe; 8. Collection tank; 9. Vibration-impacting part; 10. Driving part; 11. Closing plate; 12. Integrated monitoring box; 13. Air extraction pump; 14. Return pipe; 15. Water-filtering part; 21. Conical fine filter plate; 51. Support plate; 52. Circular top seat; 53. Driving rod; 61. Sub-filtering box; 62. Restricting mesh plate; 63. Elastic part; 631. Sleeve rod; 632. First spring; 633. Inner rod; 91. U-shaped base; 92. Bent driving plate; 93. Striking rod; 94. Second spring; 101. Servo motor; 102. Rotating shaft; 103. Centrifugal disc; 104. Driving groove; 151. Water storage box; 152. Water-filtering membrane; 153. Ventilation groove; 154. Clamping part; 1541. Sleeve box; 1542. Clamping block; 1543. Poking piece; 1544. Third spring. Specific embodiments

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] Embodiment 1

[0038] Please refer to Figures 1 to 3, which is the first embodiment of the present invention, and provides a technical solution: a biogas collection and separation device, comprising a separation tank 1, a detachable closing plate 11 is installed on the top of the separation tank 1, and the closing plate 11 is fixedly connected to the separation tank 1 by a lock, which is convenient for disassembly and assembly of the closing plate 11, and then convenient for subsequent cleaning of the inside of the separation tank 1, and a sealing gasket is arranged between the separation tank 1 and the closing plate 11 to strengthen the sealing strength and prevent biogas from overflowing, and a driving member 10 is installed on the inner bottom of the separation tank 1, and a flip-top member 5 is installed at the lower end of the separation tank 1, and the flip-top member 5 is transmission-connected with the driving member 10, and a sub-filter member 6 is placed on the top of the flip-top member 5, and a detachable sealing cover 2 is installed on the top of the closing plate 11, and the sealing cover 2 can be connected and fixed to the closing plate 11 by fixing bolts, which is convenient for subsequent disassembly of the sealing cover 2 and cleaning of the inside of the sealing cover 2, and a flow port is opened in the middle of the closing plate 11;

[0039] A conical fine filter plate 21 is installed on one side of the closing plate 11 close to the sealing cover 2. The conical fine filter plate 21 covers the flow port and can be fixed to the closing plate 11 by bolts, which is convenient for subsequent disassembly, replacement or cleaning of the conical fine filter plate 21. Here, the conical fine filter plate 21 is made of a stainless steel sintered filter plate, which is corrosion-resistant and high-temperature resistant and has a long service life. The top of the sealing cover 2 is fixedly connected with an air valve port 3, the bottom of the separation tank 1 is fixedly connected with an electromagnetic valve, the exhaust end of the electromagnetic valve is fixedly connected with a delivery pipe 7, one end of the delivery pipe 7 is fixedly connected with a collecting tank 8, and the lower end of the separation tank 1 is fixedly connected with an integrated monitoring box 12. Here, the interior of the integrated monitoring box 12 is provided with a metal oxide The metal oxide semiconductor sensor, the infrared sensor, the capacitive humidity sensor, the laser spectrum sensor and the controller, the metal oxide semiconductor sensor is used to detect the hydrogen sulfide content in the biogas, the infrared sensor can be used to detect the carbon dioxide concentration in the biogas, and the capacitive humidity sensor can be used to detect the humidity in the biogas, the laser spectrum sensor is used to detect the impurities contained in the biogas, and the controller is electrically connected to the vacuum pump 13 and the solenoid valve, and can control the start and stop of the vacuum pump 13 and the switch of the solenoid valve. The other side of the lower end of the separation tank 1 is fixedly connected with the vacuum pump 13, and the exhaust end of the vacuum pump 13 is fixedly connected with a return pipe 14, and one end of the return pipe 14 is connected to the sealing cover 2;

[0040] Linkage rods 4 are slidably connected to both sides of the inner wall of the separation tank 1, and one end of the linkage rod 4 away from the sealing cover 2 is in contact with the driving member 10. Vibrating members 9 are fixedly connected to both sides of the top of the closing plate 11. Here, the vibrating member 9 is located on one side of the conical fine filter plate 21. A detachable water filter member 15 is installed at the upper end of the interior of the separation tank 1, and the water filter member 15 and the filter member 6 are on the same central axis.

[0041] Biogas enters the interior of the sealing cover 2 through the gas valve port 3 and enters the separation tank 1 along the circulation port through the conical fine filter plate 21. At this time, the air pump 13 extracts the biogas, causing the biogas to flow downward. The biogas successively passes through the water filtering component 15 and the fractional filtering component 6, and then enters the return pipe 14 and is sent back into the sealing cover 2 again, causing the biogas to form a circulating flow. During this period, the integrated monitoring box 12 detects the biogas.

[0042] During use, first connect the external biogas connecting pipe to the gas valve port 3. The biogas enters the interior of the sealing cover 2 through the gas valve port 3. The biogas entering the interior of the sealing cover 2 can enter the separation tank 1 along the circulation port. Before entering the circulation port, the biogas passes through the conical fine filter plate 21, and the conical fine filter plate 21 filters the biogas, removing impurities in the biogas, thereby preliminarily filtering and separating the biogas. After that, the biogas entering the separation tank 1 can successively pass through the water filtering component 15 and the fractional filtering component 6. The water filtering component 15 can preliminarily dehydrate the biogas, improving the dryness of the biogas. Then, the fractional filtering component 6 adsorbs and separates the chemical substances inside the biogas, thereby realizing the separation and purification of the biogas. After the biogas passes through the fractional filtering component 6, the air pump 13 can pump it into the return pipe 14. Through the return pipe 14, the biogas can be sent back into the sealing cover 2 again, thereby realizing the circulating flow of the biogas and separating the biogas in a cycle. During circulation, the integrated monitoring box 12 can monitor the biogas in real time. When the separation purity of the biogas reaches the standard, the air pump 13 can be turned off through the integrated monitoring box 12, causing the biogas to stop circulating, and the electromagnetic valve can be opened, causing the biogas inside the separation tank 1 to enter the collection tank 8 along the delivery pipe 7. The collection tank 8 stores the qualified biogas, thereby realizing the separation and collection of the biogas. In addition, after the biogas is continuously input through the external connecting pipe for a period of time, the input can be stopped. After the biogas inside the separation tank 1 is separated and purified, the biogas can be input again. After that, when it is necessary to maintain and replace the water filtering component 15 and the fractional filtering component 6, the locking buckle can be manually operated to separate the closing plate 11 from the separation tank 1, facilitating people to take out the water filtering component 15 and the fractional filtering component 6, thereby processing the water filtering component 15 and the fractional filtering component 6.

[0043] Embodiment 2

[0044] Please refer to Figures 4 to 7, which is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the sub-filtering member 6 includes a plurality of sub-filtering boxes 61 slidably connected inside the separation tank 1. A detachable limiting net plate 62 is installed on the top of the sub-filtering box 61. The limiting net plate 62 and the sub-filtering box 61 are connected by threads, which is convenient for processing the materials inside the sub-filtering box 61. Moreover, a plurality of groups of air-permeable holes are provided on both the bottom of the sub-filtering box 61 and the limiting net plate 62 to facilitate the circulation of biogas. An elastic member 63 is fixedly connected between two adjacent sub-filtering boxes 61. The inside of the sub-filtering box 61 is filled with molecular sieve particles. Different molecular sieve particles are filled in a plurality of sub-filtering boxes 61, such as sodium-type aluminosilicate particles, calcium-type aluminosilicate particles, and potassium-type aluminosilicate, etc., to dehydrate, desulfurize, and reduce the carbon dioxide concentration of biogas;

[0045] The elastic member 63 includes a sleeve rod 631 fixedly connected to one side of the sub-filtering box 61. A first spring 632 is arranged inside the sleeve rod 631, and the first spring 632 is fixedly connected to the sleeve rod 631 near one end of the sleeve rod 631. The end of the first spring 632 far from the sleeve rod 631 is fixedly connected to an inner rod 633;

[0046] The driving member 10 includes a servo motor 101 fixedly connected to the bottom end of one side of the separation tank 1. The output end of the servo motor 101 is fixedly connected to a rotating shaft 102. The rotating shaft 102 is rotatably connected to the separation tank 1. Centrifugal discs 103 are symmetrically arranged on the rotating shaft 102, and the centrifugal discs 103 are in contact with the linkage rod 4. A driving groove 104 is formed on one side of the centrifugal disc 103. The inner wall of the driving groove 104 and the arc outer wall of the centrifugal disc 103 are both smoothed to reduce the friction force when driving the linkage rod 4 and the top-turning member 5 and maintain the driving effect;

[0047] The top-turning member 5 includes support plates 51 symmetrically penetrating through the bottom end inside the separation tank 1. A driving rod 53 is fixedly connected to one side of the support plate 51 close to the centrifugal disc 103, and the driving rod 53 is engaged and slidably connected with the driving groove 104. The surface of the driving rod 53 is smoothed to make it slide more smoothly when sliding against the inside of the driving groove 104 and reduce the generation of friction force. A circular top seat 52 is fixedly connected to one end of the support plate 51 far from the driving rod 53. Here, the lowermost sub-filtering box 61 in the sub-filtering member 6 is placed on the circular top seat 52. A rubber layer is coated on the top of the circular top seat 52. The rubber layer makes the top of the circular top seat 52 have a certain elasticity, which can reduce the impact damage caused by the reciprocating lifting of the top-turning member 5 to the sub-filtering member 6 and improve the service life of the sub-filtering member 6;

[0048] During the biogas circulation separation, the rotation of the servo motor 101 can drive the rotation of the rotating shaft 102. The rotating shaft 102 in rotation can drive the two centrifugal discs 103 to rotate synchronously, causing the centrifugal discs 103 to revolve around the center point of the rotating shaft 102, thereby driving the driving rod 53, causing the driving rod 53 to slide on the driving groove 104. At the same time, the driving rod 53 is subjected to the driving force exerted by the inner wall of the driving groove 104, thereby driving the support plate 51 to move, causing the support plate 51 to move up and down reciprocally, thereby driving the circular top seat 52 to move reciprocally, so as to push the filtering member 6, causing the multiple filtering boxes 61 to shake up and down, thereby turning the molecular sieve particles in the filtering box 61, thereby increasing the contact area between the molecular sieve particles and the biogas, improving the adsorption efficiency of the chemical substances in the biogas, thereby improving the separation and purification efficiency of the biogas. At the same time, the shaking of the filtering box 61 can prevent the molecular sieve particles inside from accumulating, avoiding the phenomenon that the voids between the particles are reduced due to accumulation, affecting the biogas circulation, thereby maintaining the circulation efficiency of the biogas circulation and improving the circulation separation effect. When the filtering box 61 shakes up and down, an extrusion force can be exerted on the inner rod 633 and the sleeve rod 631, causing the inner rod 633 to contract inside the sleeve rod 631, thereby squeezing the first spring 632. Through the elastic action of the first spring 632, the reset effect of the inner rod 633 is achieved, thereby increasing the shaking frequency of the filtering box 61, improving the turning effect of the molecular sieve particles, and thereby improving the separation efficiency of the filtering member 6 for the biogas.

[0049] Embodiment 3

[0050] Please refer to Figure 2 、 Figure 6 and Figure 8 As shown in, and, this is the third embodiment of the present invention. The difference between this embodiment and the first and second embodiments is that the vibrating member 9 includes a U-shaped base 91 fixedly connected to one side of the top of the closing plate 11. A bent driving plate 92 is rotatably connected inside the U-shaped base 91. One end of the bent driving plate 92 is fixedly connected to a striking rod 93. The inside of the striking rod 93 is a metal rod, and the metal rod is wrapped with a rubber sleeve. Through the elastic action of the rubber material, the damage caused to the conical fine filter plate 21 when the striking rod 93 strikes it can be reduced, the service life of the conical fine filter plate 21 can be improved, and at the same time, the striking effect of the striking rod 93 can be improved. One side inside the U-shaped base 91 is fixedly connected to a second spring 94. The end of the second spring 94 away from the U-shaped base 91 is fixedly connected to one side of the bent driving plate 92;

[0051] The linkage rod 4 is engaged and slid with the closing plate 11. One end of the striking rod 93 is located directly above the linkage rod 4. The top end of the linkage rod 4 is arc-shaped, reducing the abrasion caused to it when the linkage rod 4 is in contact with and driven by the bent driving plate 92. A roller is rotatably connected to the bottom of the linkage rod 4, and the roller is in contact with the arc outer wall of the centrifugal disc 103.

[0052] When the centrifugal disk 103 rotates, the linkage rod 4 can be driven to resist, so that the linkage rod 4 moves up and down. The moving linkage rod 4 can push the bending drive plate 92 to the top, so that the bending drive plate 92 rotates around the rotation point, and then drives the striking rod 93 to strike the conical fine filter plate 21, so that the conical fine filter plate 21 vibrates, so that the impurities separated and adhered to the conical fine filter plate 21 are shaken off and fall along the inclined structure of the conical fine filter plate 21, thereby cleaning the conical fine filter plate 21, reducing the possibility of impurities adhering to the conical fine filter plate 21 and clogging the filter holes. , maintain the circulation efficiency of biogas, reduce the possibility of gradual decrease in circulation efficiency during biogas circulation separation, and at the same time ensure the separation quality of impurities, reduce the possibility of impurities being adsorbed by molecular sieve particles, reduce the saturation speed of molecular sieve particles, extend its service life, and improve the separation efficiency of biogas. When the bending drive plate 92 loses the drive of the linkage rod 4, the elastic action of the spring 2 94 can be used to top up one end of the bending drive plate 92, and then reset the striking rod 93, so as to cooperate with the up and down movement of the linkage rod 4 to realize the reciprocating striking of the conical fine filter plate 21 by the striking rod 93.

[0053] The remaining structures are the same as those of Example 1.

[0054] Example 4

[0055] See also Figures 9 to 10 , which is the third embodiment of the present invention, and this embodiment is different from the first, second and third embodiments in that: the water filter 15 includes a water storage box 151 installed at the upper end of the separation tank 1, and a drain port is arranged at the bottom of the water storage box 151. When it is necessary to clean the water separated by the water storage box 151, the drain port can be opened manually to discharge the water. A water filter membrane 152 is installed on the top of the water storage box 151. The water filter membrane 152 adopts a polymer membrane made of polyimide material, does not require chemical reagents, has low energy consumption, and is suitable for continuous filtration and separation of biogas. In addition, when the biogas contacts the water filter membrane 152, the water molecules in the biogas enter the water storage box 151 through the water filter membrane 152, while the gas and other substances in the biogas will be blocked by the water filter membrane 152, thereby realizing the separation of the water molecules in the biogas, and a ventilation groove 153 is arranged on the outer side of the water storage box 151, and a clamping member 154 is fixedly connected to one side of the inner wall of the ventilation groove 153;

[0056] The clamping member 154 includes a sleeve 1541 fixedly connected to one side of the inner wall of the venting groove 153, a spring 3 1544 is fixedly connected to one side of the sleeve 1541, and a buckle member is slidably installed inside the sleeve 1541, and one end of the spring 3 1544 is in conflict with the buckle member;

[0057] The buckle includes a clamping block 1542 slidably connected inside the sleeve box 1541. The inner wall of the sleeve box 1541 and the outer wall of the clamping block 1542 are both smooth to reduce the friction generated when the clamping block 1542 moves inside the sleeve box 1541. One end of the top of the clamping block 1542 is fixedly connected with a dial 1543. A chute is provided on one side of the top of the sleeve box 1541, and the dial 1543 is slidably installed inside the chute. A clamping groove corresponding to the clamping block 1542 is provided at the upper inner side of the separation tank 1. Here, the diameter of the clamping groove is larger than the end size of the clamping block 1542 to facilitate quick clamping.

[0058] Through the water filter membrane 152 in the water filter member 15, the moisture in the biogas can be separated, and the separated moisture is stored in the water storage box 151. The separated biogas can flow downward through the ventilation groove 153, thereby realizing the preliminary dehydration of the biogas, improving the dryness of the biogas, so that the molecular sieve particles in the separation filter box 61 will not adsorb too much moisture and accelerate the saturation speed, increasing the adsorption duration of the molecular sieve particles, maintaining their adsorption effect on chemical substances, reducing the frequency of replacing the molecular sieve particles. When it is necessary to disassemble, replace or drain the water filter member 15, the dial 1543 can be manually toggled, so that the dial 1543 drives the clamping block 1542 to move, and then retracts it into the sleeve box 1541, and one end of it is pulled out from the clamping groove, so as to facilitate the disassembly of the water filter member 15. When it is necessary to install the water filter member 15, the dial 1543 is also toggled to retract the clamping block 1542 into the sleeve box 1541, align the clamping block 1542 with the clamping groove, and then release the dial 1543. Under the elastic action of the third spring 1544, the clamping block 1542 is pushed into the clamping groove to form a clamping connection, and the installation of the water filter member 15 can be realized.

[0059] The remaining structures are the same as those in Embodiments 1, 2, and 3.

[0060] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A biogas collection and separation device, comprising a separation tank (1), characterized in that: A detachable closing plate (11) is installed at the top of the separation tank (1), and a driving member (10) is installed at the inner bottom of the separation tank (1). A turning top member (5) is installed at the lower end inside the separation tank (1), and the turning top member (5) is in transmission connection with the driving member (10). A filtering member (6) is placed on the top of the turning top member (5). A detachable sealing cover (2) is installed at the top of the closing plate (11), and a circulation port is formed in the middle of the closing plate (11). A conical fine filtering plate (21) is installed on one side of the closing plate (11) close to the sealing cover (2). An air valve port (3) is fixedly connected to the top of the sealing cover (2). A solenoid valve is fixedly connected to the bottom of the separation tank (1), and a delivery pipe (7) is fixedly connected to the exhaust end of the solenoid valve. One end of the delivery pipe (7) is fixedly connected to a collection tank (8). An integrated monitoring box (12) is fixedly connected to one side at the lower end of the separation tank (1), and an air extraction pump (13) is fixedly connected to the other side at the lower end of the separation tank (1). The exhaust end of the air extraction pump (13) is fixedly connected to a return pipe (14), and one end of the return pipe (14) is communicated with the sealing cover (2). Linking rods (4) are slidably connected to both sides of the inner wall of the separation tank (1). One end of the linking rod (4) away from the sealing cover (2) is in contact with the driving member (10). Vibration members (9) are fixedly connected to both sides of the top of the closing plate (11). A detachable water filtering member (15) is installed at the upper end inside the separation tank (1), and the water filtering member (15) and the filtering member (6) are on the same central axis. Biogas enters the inside of the sealing cover (2) through the air valve port (3) and enters the separation tank (1) along the circulation port through the conical fine filtering plate (21). At this time, the air extraction pump (13) extracts the biogas to make the biogas flow downward. The biogas sequentially passes through the water filtering member (15) and the filtering member (6), and then enters the return pipe (14) and is sent into the sealing cover (2) again to make the biogas circulate. During this period, the integrated monitoring box (12) detects the biogas.

2. The biogas collection and separation device according to claim 1, characterized in that: The filtering member (6) includes a plurality of filtering boxes (61) slidably connected inside the separation tank (1). A detachable limiting mesh plate (62) is installed at the top of the filtering box (61). Elastic members (63) are fixedly connected between adjacent two filtering boxes (61). Molecular sieve particles are filled inside the filtering box (61).

3. The biogas collection and separation device according to claim 2, characterized in that: The elastic member (63) includes a sleeve rod (631) fixedly connected to one side of the filtering box (61). A first spring (632) is arranged inside the sleeve rod (631), and the first spring (632) is fixedly connected between one end close to the sleeve rod (631) and the sleeve rod (631). One end of the first spring (632) away from the sleeve rod (631) is fixedly connected to an inner rod (633).

4. A biogas collection and separation device according to claim 1, characterized in that: The driving member (10) includes a servo motor (101) fixedly connected to the bottom end of one side of the separation tank (1). The output end of the servo motor (101) is fixedly connected with a rotating shaft (102). The rotating shaft (102) is rotatably connected to the separation tank (1). Centrifugal discs (103) are symmetrically arranged on the rotating shaft (102), and the centrifugal discs (103) are in contact with the linkage rod (4). A driving groove (104) is formed on one side of the centrifugal disc (103).

5. A biogas collection and separation device according to claim 4, characterized in that: The top-flipping member (5) includes support plates (51) symmetrically penetrating through the inner bottom end of the separation tank (1). A driving rod (53) is fixedly connected to one side of the support plate (51) close to the centrifugal disc (103), and the driving rod (53) is in snap-fit sliding connection with the driving groove (104). A circular top seat (52) is fixedly connected to one end of the support plate (51) away from the driving rod (53). A rubber layer is coated on the top of the circular top seat (52).

6. The biogas collection and separation device according to claim 1, characterized in that: The vibrating member (9) includes a U-shaped base (91) fixedly connected to one side of the top of the closing plate (11). A bent driving plate (92) is rotatably connected inside the U-shaped base (91). A striking rod (93) is fixedly connected to one end of the bent driving plate (92). A second spring (94) is fixedly connected to one side inside the U-shaped base (91). One end of the second spring (94) away from the U-shaped base (91) is fixedly connected to one side of the bent driving plate (92).

7. A biogas collection and separation device according to claim 6, characterized in that: The linkage rod (4) is in snap-fit sliding connection with the closing plate (11). One end of the striking rod (93) is located directly above the linkage rod (4). A roller is rotatably connected to the bottom of the linkage rod (4), and the roller abuts against the arc outer wall of the centrifugal disc (103).

8. A biogas collection and separation device according to claim 1, characterized in that: The water filtering member (15) includes a water storage box (151) installed at the upper end inside the separation tank (1). A water filtering membrane (152) is installed on the top of the water storage box (151). An air vent groove (153) is formed on the outside of the water storage box (151). A clamping member (154) is fixedly connected to one side of the inner wall of the air vent groove (153).

9. A biogas collection and separation device according to claim 8, characterized in that: The clamping member (154) includes a sleeve box (1541) fixedly connected to one side of the inner wall of the air vent groove (153). A third spring (1544) is fixedly connected to one side inside the sleeve box (1541). A buckling member is slidably installed inside the sleeve box (1541), and one end of the third spring (1544) abuts against the buckling member.

10. A biogas collection and separation device according to claim 9, characterized in that: The buckling member includes a clamping block (1542) slidably connected inside the sleeve box (1541). A dial piece (1543) is fixedly connected to one end of the top of the clamping block (1542). A sliding groove is formed on one side of the top of the sleeve box (1541), and the dial piece (1543) is slidably installed inside the sliding groove. A clamping groove corresponding to the clamping block (1542) is formed on the upper inner side of the separation tank (1).

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