Impurity interception and separation device in biogas slurry

Abstract

This application belongs to the field of biogas engineering residue and biogas slurry separation technology, and discloses a device for intercepting and separating impurities in biogas slurry, including a temporary storage tank and a separation cylinder. The opening on the top surface of the temporary storage tank is welded with a supporting rib plate, and the separation cylinder is set above the supporting rib plate. This application starts the geared motor on the separation cylinder, which drives the auger inside the separation cylinder to rotate. As the biogas slurry is introduced from the biogas slurry feed hopper, the auger can push the biogas slurry along the length of the separation cylinder. The arc-shaped filter screen set at the bottom of the separation cylinder can drain the liquid in the biogas slurry and flow into the temporary storage tank under the guidance of the drain nozzle. At this time, by starting the booster pump on the surface of the liquid guide pipe, the liquid guide pipe with the filter head is used to filter and extract the biogas slurry from the temporary storage tank, so that the biogas slurry is sprayed out through the surface of the spray pipe toward the flushing nozzle installed on the bottom surface of the arc-shaped filter screen, realizing the online flushing of the arc-shaped filter screen, which solves the problem of discontinuous biogas slurry filtration and separation caused by the clogging of the screen in traditional filter devices.

Description

Technical Field

[0001] This application relates to the field of biogas engineering residue and biogas slurry separation technology, and more specifically, to a device for intercepting and separating impurities in biogas slurry. Background Technology

[0002] Biogas slurry, a product of fermentation of agricultural and forestry organic waste, livestock and poultry manure, and domestic organic waste, is inexpensive and widely available. Its components are rich in nutrients, stress-resistant and bactericidal agents, and crop growth promoters, making it a popular organic green fertilizer. Because biogas slurry is odorless after fermentation, its fertilizer efficacy is often more than 10 times that of ordinary chemically synthesized fertilizers, and its water quality makes it easily absorbed by crops, biogas slurry has broad application prospects in the resource utilization of agricultural and forestry waste.

[0003] However, biogas slurry often contains a large amount of biogas residue, impurities, and scum, which can easily clog sprinkler heads during sprinkler irrigation, resulting in poor spraying effects and severely restricting the application and promotion of biogas slurry. Biogas slurry filtration is one of the important methods to solve this problem. Currently, most common biogas slurry filtration devices use sieving or extrusion filtration methods to separate solids and liquids to achieve biogas slurry filtration. Because biogas residue and coarse straw fibers in biogas slurry easily clog the screen, it is necessary to periodically stop the biogas slurry filtration separation, remove and clean the filter screen to achieve the recycling of the filter screen and ensure the continued biogas slurry filtration. In addition, when discharging the biogas residue after biogas slurry filtration, it is often necessary to stop the biogas slurry filtration process. These discontinuous biogas slurry filtration methods not only affect the continuous operation of biogas slurry filtration, but also make maintenance and cleaning inconvenient, and the equipment involved is often complex in structure and expensive. It is particularly important to find a biogas slurry filtration device and method that is simple in structure, easy to operate, and inexpensive.

[0004] To address the aforementioned issues, this application provides a device for intercepting and separating impurities in biogas slurry. Utility Model Content

[0005] The biogas slurry impurity interception and separation device provided in this application adopts the following technical solution:

[0006] A biogas slurry impurity interception and separation device includes a temporary storage tank and a separation cylinder. A supporting rib is welded to the opening on the top surface of the temporary storage tank, and the separation cylinder is positioned above the supporting rib. A supporting base is welded to the bottom of the separation cylinder, and the bottom of the supporting base is fixedly connected to the supporting rib by bolts. A geared motor is fixedly installed at the right end of the separation cylinder, and an auger is fixed to the output end of the geared motor via a coupling. A biogas slurry feed hopper is connected to the right side of the top surface of the separation cylinder, and a slag discharge nozzle is connected to the right end of the separation cylinder. An arc-shaped filter screen is embedded in the bottom surface of the separation cylinder. A drain nozzle is welded to the bottom of the separation cylinder corresponding to the arc-shaped filter screen, and two spray pipes are inserted through the side wall of the drain nozzle. Several rinsing nozzles are installed on the surface of each spray pipe corresponding to the arc-shaped filter screen. A liquid guide pipe is inserted through the lower surface of the temporary storage tank, and one end of the liquid guide pipe is connected to the two spray pipes via a tee. A booster pump is installed on the surface of the liquid guide pipe.

[0007] The above technical solution enables online rinsing of the arc-shaped filter screen, solving the problem of discontinuous biogas slurry filtration and separation caused by screen blockage in traditional filtration devices, and eliminating the need for additional water sources to rinse the arc-shaped filter screen.

[0008] Furthermore, the left side wall of the temporary storage tank is connected to an impurity recovery box, which is located below the impurity discharge nozzle. Inside the impurity recovery box, two slide rails are welded in parallel, and two impurity collection hoppers are slidably installed on the two slide rails. A filter screen is embedded in the bottom surface of each impurity collection hopper, and a track wheel is rolled on the edge of the bottom surface of each impurity collection hopper corresponding to the slide rail. A hanging rod is welded to the opening on the top surface of each impurity collection hopper.

[0009] By adopting the above technical solution, the method of alternating reception of biogas slurry impurities can meet the requirements of continuous interception and separation of biogas slurry impurities, thus solving the problem of discontinuous slag discharge in traditional filtration devices.

[0010] Furthermore, a filter head is fitted onto one end of the liquid guide tube that extends into the temporary storage tank, and a circular filter screen is embedded in the end face of the filter head.

[0011] The above technical solution, through the setting of the filter head, can achieve the filtration of biogas slurry and avoid clogging of the flushing nozzle.

[0012] Furthermore, two support seats are welded to the bottom surface of the separation cylinder, and one of the support seats has a rectangular opening corresponding to the liquid guide tube.

[0013] The above technical solution facilitates the installation of the separation cylinder by setting up a support base, and the rectangular opening makes way for the liquid guide tube.

[0014] Furthermore, two hanging rods are welded to the opening of the collection hopper, and each hanging rod has an annular groove in the middle.

[0015] The above technical solution, through the setting of the hanging rod, facilitates the hook attachment of external hoisting equipment.

[0016] Furthermore, a rectangular frame is welded to the bottom of the collection hopper, and the rectangular frame covers the outside of the filter screen.

[0017] The above technical solution, through the setting of a rectangular frame, meets the requirements for biogas slurry guidance.

[0018] Furthermore, the height of the impurity recovery box is greater than the height of the temporary storage pool, and a communication port is provided between the impurity recovery box and the temporary storage pool.

[0019] The above technical solution facilitates the flow of biogas slurry from the impurity recovery box to the temporary storage tank.

[0020] In summary, this application includes the following beneficial technical effects:

[0021] By starting the geared motor on the separator, the motor drives the auger inside the separator to rotate. As the biogas slurry is introduced from the biogas slurry feed hopper, the auger propels the biogas slurry along the length of the separator. The arc-shaped filter screen at the bottom of the separator drains the liquid from the biogas slurry, which then flows into the storage tank under the guidance of the drain nozzle. At this time, by starting the booster pump on the surface of the liquid guide pipe, the liquid guide pipe with the filter head filters and extracts the biogas slurry from the storage tank. The biogas slurry is then sprayed out through the spray pipe towards the flushing nozzle installed on the bottom surface of the arc-shaped filter screen, realizing online flushing of the arc-shaped filter screen. This solves the problem of discontinuous biogas slurry filtration and separation caused by screen blockage in traditional filtration devices, and eliminates the need for an additional water source to flush the arc-shaped filter screen.

[0022] Two impurity collection hoppers are slidably installed inside the impurity recovery box, with one hopper located below the discharge nozzle of the separation cylinder. When one hopper is full of biogas slurry impurities, the hook of the external hoisting equipment acts on the hanging rod surface of the hopper to facilitate its hoisting and transfer. Then, the other hopper is pushed, causing the track wheel installed at the bottom of the hopper to roll along the slide rail welded inside the impurity recovery box, so that the other hopper is transferred to below the discharge nozzle of the separation cylinder. This alternating method of receiving biogas slurry impurities satisfies the continuous interception and separation of biogas slurry impurities, solving the problem of discontinuous sludge discharge in traditional filtration devices. In addition, the filter screen at the bottom of the hopper can drain the biogas slurry a second time. Combined with the height difference between the impurity recovery box and the temporary storage tank, it is easy to return the drained biogas slurry to the temporary storage tank. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this application;

[0024] Figure 2 This is a cross-sectional view of the separation cylinder of this application;

[0025] Figure 3 This is a top view of the temporary storage tank and impurity recovery box of this application;

[0026] Figure 4 This is a three-dimensional view of the dust collection hopper in this application.

[0027] Explanation of the labels in the diagram:

[0028] 1. Temporary storage tank; 2. Impurity recovery box; 3. Separation cylinder; 4. Gear motor; 5. Screw conveyor; 6. Arc-shaped filter screen; 7. Biogas slurry feed hopper; 8. Support base; 9. Liquid guide pipe; 10. Booster pump; 11. Drain nozzle; 12. Spray pipe; 13. Impurity discharge nozzle; 14. Impurity collection hopper; 15. Slide rail; 16. Track wheel; 17. Filter screen; 18. Filter head; 19. Flushing nozzle; 20. Support rib plate; 21. Hanging rod. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] Example:

[0033] This application discloses a device for intercepting and separating impurities in biogas slurry. Please refer to [link / reference]. Figure 1 , Figure 2 and Figure 3The system includes a temporary storage tank 1 and a separation cylinder 3. A supporting rib 20 is welded to the opening on the top surface of the temporary storage tank 1, and the separation cylinder 3 is positioned above the supporting rib 20. A supporting base 8 is welded to the bottom of the separation cylinder 3, and the bottom of the supporting base 8 is fixedly connected to the supporting rib 20 by bolts. A geared motor 4 is fixedly installed at the right end of the separation cylinder 3, and an auger 5 is fixed to the output end of the geared motor 4 via a coupling. A biogas slurry feed hopper 7 is connected to the right side of the top surface of the separation cylinder 3, and a slag discharge nozzle is connected to the right end of the separation cylinder 3. An arc-shaped filter screen 6 is embedded in the bottom surface of the separation cylinder 3. A drain nozzle 11 is welded to the bottom of the separation cylinder 3 corresponding to the arc-shaped filter screen 6, and two spray pipes 12 are inserted into the side wall of the drain nozzle 11. Several rinsing nozzles are installed on the surface of each spray pipe 12 corresponding to the arc-shaped filter screen 6. The nozzle 19 and the lower surface of the temporary storage tank 1 are interspersed with a liquid guide pipe 9, one end of which is connected to two spray pipes 12 via a tee. A booster pump 10 is installed on the surface of the liquid guide pipe 9. The rinsing nozzle 19 is inclined and the spray end of the rinsing nozzle 19 is directed toward the arc-shaped filter screen 6. The two spray pipes 12 and the several rinsing nozzles 19 on their surfaces can fully cover the arc-shaped filter screen 6, increasing the rinsing coverage of the arc-shaped filter screen 6 and preventing clogging. The control method of the geared motor 4 and the booster pump 10 in this utility model is controlled by manually starting and stopping the switch. The wiring diagram of the power components and the power supply are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring arrangement will not be explained in detail in this utility model.

[0034] Please see Figure 1 , Figure 3 and Figure 4 The left side wall of the temporary storage tank 1 is connected to an impurity recovery box 2, which is located below the discharge nozzle 13. Inside the impurity recovery box 2, two parallel slide rails 15 are welded, and two collection hoppers 14 are slidably installed on the two slide rails 15. A filter screen 17 is embedded in the bottom surface of each collection hopper 14, and a track wheel 16 is rolled along the edge of the bottom surface of each collection hopper 14 corresponding to the slide rail 15. A hanging rod 21 is welded to the opening on the top surface of each collection hopper 14. The biogas slurry and biogas residue from the separation cylinder 3 fall into one of the collection hoppers 14 of the impurity recovery box 2. When one of the hoppers... When the collection hopper 14 is full of biogas slurry impurities, the hook of the external hoisting equipment acts on the surface of the hanging rod 21 of the collection hopper 14 to facilitate the hoisting and transfer of the collection hopper 14. Then, another collection hopper 14 is pushed, causing the track wheel 16 installed at the bottom of the collection hopper 14 to roll along the slide rail 15 welded to the inside of the impurity recovery box 2, so that the other collection hopper 14 is transferred to the bottom of the discharge nozzle 13 of the separation cylinder 3, which satisfies the continuous interception and separation of biogas slurry impurities. The transfer and adjustment of the collection hopper 14 requires manual intervention. The slide rail 15 and the track wheel 16 are adapted to meet the transfer requirements of the collection hopper 14.

[0035] Please see Figure 1 A filter head 18 is fitted onto one end of the liquid guide pipe 9 that extends into the temporary storage tank 1, and a circular filter screen is embedded in the end face of the filter head 18. When the liquid guide pipe 9 draws biogas slurry from the temporary storage tank 1, the circular filter screen of the filter head 18 can further filter the biogas slurry to prevent impurities from clogging the flushing nozzle 19.

[0036] Please see Figure 1 and Figure 2 Two support seats 8 are welded to the bottom surface of the separation cylinder 3, and one of the support seats 8 has a rectangular opening corresponding to the liquid guide pipe 9. By placing the separation cylinder 3 above the temporary storage tank 1, the support seat 8 is brought into contact with the support rib plate 20. Then, the separation cylinder 3 is fixed by bolts passing through the support seat 8 and the support rib plate 20, which meets the requirements for the installation of the separation cylinder 3 and the drainage of biogas slurry.

[0037] Please see Figure 1 and Figure 3 Two hanging rods 21 are welded to the opening of the collection hopper 14, and each hanging rod 21 has an annular groove in the middle. The hanging rods 21 of the collection hopper 14 are lifted by an external hoisting hook, which facilitates the hoisting and transfer of the collection hopper 14.

[0038] Please see Figure 1 and Figure 4 A rectangular frame is welded to the bottom of the collection hopper 14, and the rectangular frame covers the outside of the filter screen 17. The rectangular frame guides the drained biogas slurry and prevents the biogas slurry from covering the bottom of the collection hopper 14 after draining, which would cause the collection hopper 14 to rust faster.

[0039] Please see Figure 1 The height of the impurity recovery box 2 is greater than the height of the temporary storage tank 1, and a connection port is provided between the impurity recovery box 2 and the temporary storage tank 1. Through the height difference between the impurity recovery box 2 and the temporary storage tank 1, combined with the connection port between the two, it is easy to return the leached biogas slurry to the temporary storage tank 1.

[0040] The implementation principle of this embodiment is as follows: During use, the reduction motor 4 on the separation cylinder 3 is started, causing the reduction motor 4 to drive the auger 5 inside the separation cylinder 3 to rotate. As the biogas slurry is introduced from the biogas slurry feed hopper 7, the auger 5 can push the biogas slurry along the length of the separation cylinder 3. The arc-shaped filter screen 6 set at the bottom of the separation cylinder 3 can drain the liquid in the biogas slurry and flow into the temporary storage tank 1 under the guidance of the drain nozzle 11. At this time, the booster pump 10 on the surface of the liquid guide pipe 9 is started, causing the liquid guide pipe 9 with filter head 18 to filter and extract the biogas slurry in the temporary storage tank 1, so that the biogas slurry passes through the surface of the spray pipe 12 towards the flushing nozzle 1 installed on the bottom surface of the arc-shaped filter screen 6. 9 sprays out to achieve online rinsing of the arc-shaped filter screen 6, preventing the arc-shaped filter screen 6 from clogging. The impurities separated from the biogas slurry are discharged through the slag discharge nozzle and fall into one of the collection hoppers 14 of the impurity recovery box 2. When one of the collection hoppers 14 is full of biogas slurry impurities, the hook of the external hoisting equipment acts on the surface of the hanging rod 21 of the collection hopper 14 to facilitate the hoisting and transfer of the collection hopper 14. Then, it pushes the other collection hopper 14, causing the track wheel 16 installed at the bottom of the collection hopper 14 to roll along the slide rail 15 welded on the inner side of the impurity recovery box 2, so that the other collection hopper 14 is transferred to the area below the discharge nozzle 13 of the separation cylinder 3, thus satisfying the continuous interception and separation of biogas slurry impurities.

[0041] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for intercepting and separating impurities in biogas slurry, comprising a temporary storage tank (1) and a separation cylinder (3), characterized in that: A supporting rib plate (20) is welded to the opening on the top surface of the temporary storage tank (1), and a separation cylinder (3) is set above the supporting rib plate (20). A support base (8) is welded to the bottom of the separation cylinder (3), and the bottom of the support base (8) is fixedly connected to the supporting rib plate (20) by bolts. A geared motor (4) is fixedly installed at the right end of the separation cylinder (3), and an auger (5) is fixed to the output end of the geared motor (4) through a coupling. A biogas slurry feed hopper (7) is connected to the right side of the top surface of the separation cylinder (3), and a slag discharge nozzle is connected to the right end of the separation cylinder (3). An arc-shaped filter screen (6) is embedded in the bottom surface of the separation cylinder (3). A drain nozzle (11) is welded to the bottom of the separation cylinder (3) corresponding to the arc-shaped filter screen (6). Two spray pipes (12) are inserted through the side wall of the drain nozzle (11). Several rinsing nozzles (19) are installed on the surface of each spray pipe (12) corresponding to the arc-shaped filter screen (6). A liquid guide pipe (9) is inserted through the lower surface of the temporary storage tank (1). One end of the liquid guide pipe (9) is connected to the two spray pipes (12) through a tee. A booster pump (10) is installed on the surface of the liquid guide pipe (9).

2. The impurity interception and separation device in biogas slurry according to claim 1, characterized in that: The left side wall of the temporary storage tank (1) is connected to the impurity recovery box (2), and the impurity recovery box (2) is located below the discharge nozzle (13). The impurity recovery box (2) has two parallel slide rails (15) inside, and two impurity collection hoppers (14) are slidably installed on the two slide rails (15). A filter screen (17) is embedded in the bottom surface of each impurity collection hopper (14), and a track wheel (16) is rolled on the edge of the bottom surface of each impurity collection hopper (14) corresponding to the slide rail (15). A hanging rod (21) is welded to the opening on the top surface of each impurity collection hopper (14).

3. The impurity interception and separation device in biogas slurry according to claim 1, characterized in that: The liquid guide tube (9) extends into the storage tank (1) and a filter head (18) is fitted on one end, and a circular filter screen is embedded in the end face of the filter head (18).

4. The impurity interception and separation device in biogas slurry according to claim 1, characterized in that: Two support seats (8) are welded to the bottom surface of the separation cylinder (3), and one of the support seats (8) has a rectangular opening corresponding to the liquid guide tube (9).

5. The impurity interception and separation device in biogas slurry according to claim 2, characterized in that: Two hanging rods (21) are welded to the opening of the collection hopper (14), and each hanging rod (21) has an annular groove in the middle.

6. The impurity interception and separation device in biogas slurry according to claim 2, characterized in that: The bottom of the collection hopper (14) is welded with a rectangular frame, which covers the outside of the filter screen (17).

7. The impurity interception and separation device in biogas slurry according to claim 2, characterized in that: The height of the impurity recovery box (2) is greater than the height of the temporary storage pool (1), and a communication port is provided between the impurity recovery box (2) and the temporary storage pool (1).

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