Efficient scum removal device for anaerobic fermentation tank

Abstract

The utility model belongs to the technical field of scum removal of anaerobic fermentation tanks, and particularly relates to an efficient scum removal device of an anaerobic fermentation tank, which comprises a scum remover positioned in the fermentation tank, the linkage assembly comprises a linear motor fixed outside the fermentation tank and a fixing ring connected to the slag remover in a sleeving manner. According to the high-efficiency scum removal device for the anaerobic fermentation tank, by adjusting the height of the scum remover, when the liquid level in the fermentation tank changes, the position of the inlet end of the scum remover can be synchronously adjusted, and the scum remover can be flexibly adjusted to different liquid levels of the fermentation tank to adapt to scum layers on different liquid levels; and the height position of the scum remover in the fermentation tank is adjustable, adaptive adjustment can be performed according to the change of the liquid level in the fermentation tank, and the scum remover is very flexible, so that the scum can be effectively removed at any liquid level, the energy consumption and the maintenance cost are reduced, and the overall efficiency and the stability of the anaerobic fermentation system are improved.

Description

Technical Field

[0001] This utility model relates to the field of scum removal technology in anaerobic fermenters, and in particular to a high-efficiency scum removal device for anaerobic fermenters. Background Technology

[0002] In anaerobic fermentation, the scum produced in the fermenter is a problem that needs to be addressed regularly. The scum mainly consists of incompletely degraded organic matter, microbial metabolites, and any impurities that may be mixed in. If it is not cleaned in time, it will not only occupy the effective volume of the fermenter and reduce fermentation efficiency, but may also affect the quality of the fermentation products and even cause problems for subsequent separation and purification steps.

[0003] Current scum removal devices are typically designed to be fixed at a certain height in the fermenter, and can only remove scum at a fixed height. When the liquid level in the fermenter changes due to the fermentation process, feeding or discharging operations, the device may not be able to effectively contact the new scum layer, resulting in incomplete scum removal. In some cases, the device may even fail completely, and it cannot adjust its working height according to changes in liquid level, which limits its applicability under different operating conditions. Utility Model Content

[0004] In order to overcome the defects of the prior art mentioned above, the inventors conducted in-depth research and, after a great deal of creative work, completed this utility model.

[0005] Specifically, the technical problem to be solved by this utility model is to provide an efficient scum removal device for anaerobic fermenters, so as to solve the current technical problem that it can only remove scum at a fixed height and cannot adjust its working height according to changes in liquid level.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] A high-efficiency scum removal device for anaerobic fermenters includes a scum remover located inside the fermenter and an L-shaped pipe installed on the side of the inner wall of the fermenter via a pipe rack. The inlet end of the L-shaped pipe is welded with a U-shaped pipe, and the inlet end of the U-shaped pipe and the outlet end of the scum remover are fitted with corrugated pipes.

[0008] The linkage component includes a linear motor fixed to the outside of the fermenter and a fixing ring fitted onto the slag remover. A horizontal connecting frame is welded to the side of the fixing ring near the linear motor. A rectangular iron block is installed on the side of the horizontal connecting frame near the linear motor. An electromagnet is installed on the movable end of the linear motor, and the electromagnet and the opposite surface of the rectangular iron block are in a magnetic adsorption state.

[0009] As an improved technical solution, the drain end of the L-shaped pipe is located outside the fermenter, and the drain end of the L-shaped pipe is connected to the suction port of a negative pressure pump through a pipeline.

[0010] As an improved technical solution, a sliding hole is provided at the top of the horizontal connecting frame and at one end near the rectangular iron block, and the horizontal connecting frame slides on the vertical end of the L-shaped tube through the sliding hole.

[0011] As an improved technical solution, the slag remover includes an annular chamber, and a lifting pipe is slidably installed coaxially inside the annular chamber. A collection chamber is welded to the feed end of the lifting pipe.

[0012] As an improved technical solution, an annular plate is welded to the outer wall of the lifting pipe and inside the annular chamber. Electromagnets are fixed on both sides of the bottom of the annular plate. Arc-shaped iron blocks are installed on both sides inside the annular chamber, directly below each electromagnet. The arc-shaped iron blocks and the opposite surfaces of the electromagnets are magnetically attracted. Four springs are installed at equal intervals between the bottom of the annular plate and the bottom of the inner wall of the annular chamber.

[0013] As an improved technical solution, sliding holes are provided on all four sides of the top of the ring disk, and a positioning rod is slidably installed on the ring disk through the sliding holes. The spring is sleeved on the positioning rod and located below the ring disk.

[0014] As an improved technical solution, sealing sleeves are bonded to both the upper inner hole and the lower inner hole of the ring chamber, and the inner wall surface of the sealing sleeve is in close contact with the outer wall surface of the lifting pipe.

[0015] After adopting the above technical solution, the beneficial effects of this utility model are:

[0016] 1. This utility model adjusts the height of the slag remover when the linear motor drives the electromagnet to lift and lower. When the liquid level inside the fermenter changes, the position of the slag remover inlet can be adjusted simultaneously. The slag remover can be flexibly adjusted to different liquid levels in the fermenter to adapt to different slag layers, ensuring effective slag removal. The height of the slag remover inside the fermenter is adjustable, allowing for adaptive adjustments based on changes in the liquid level. It is highly flexible and adaptable to different working conditions, ensuring effective slag removal at any liquid level. This reduces energy consumption and maintenance costs, and improves the overall efficiency and stability of the anaerobic fermentation system.

[0017] 2. In this utility model, when the slag remover is raised or lowered, the bellows is also stretched and compressed simultaneously. The expansion and contraction properties of the bellows are used to ensure that the slag remover and the inside of the U-shaped tube can be connected when the slag remover is at different heights, so as to ensure that the floating slag can be discharged normally.

[0018] 3. This utility model collects scum from the liquid surface by having the collecting chamber move back and forth on and off the liquid surface. The movement of the collecting chamber on and off the liquid surface causes fluctuations, which promotes the movement of scum towards the collecting chamber and facilitates the rapid entry of scum into the interior of the collecting chamber. Furthermore, the fluctuations in the liquid surface help to crack and break up the solidified scum, thereby improving the efficiency of scum removal. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is a schematic diagram of the overall structure of the efficient scum removal device for anaerobic fermentation tanks according to this utility model.

[0021] Figure 2 This is a schematic diagram of the linkage component of an efficient scum removal device for anaerobic fermenters according to this utility model.

[0022] Figure 3 This is a schematic diagram of the slag remover of a high-efficiency slag removal device for anaerobic fermenters according to this utility model.

[0023] Figure 4 This is a cross-sectional view of the annular compartment of the anaerobic fermenter scum removal device of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Slag remover; 11. Ring bin; 12. Sealing sleeve; 13. Lifting pipe; 14. Collection bin; 15. Ring disc; 16. Positioning rod; 17. Spring; 18. Arc-shaped iron block; 19. Electromagnet II; 2. Linkage assembly; 21. Linear motor; 22. Electromagnet I; 23. Rectangular iron block; 24. Horizontal connecting frame; 25. Fixing ring; 26. Sliding hole; 3. L-shaped tube; 31. U-shaped tube; 32. Corrugated pipe. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0029] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0030] like Figures 1 to 4 As shown in the figure, this embodiment provides a high-efficiency scum removal device for anaerobic fermenters. This high-efficiency scum removal device for anaerobic fermenters includes a scum remover 1 located inside the fermenter and an L-shaped pipe 3 installed on the side of the inner wall of the fermenter via a pipe rack. A U-shaped pipe 31 is welded to the inlet end of the L-shaped pipe 3. A corrugated pipe 32 is installed at the inlet end of the U-shaped pipe 31 and the outlet end of the scum remover 1. When the scum remover 1 is raised or lowered, the corrugated pipe 32 is also stretched and compressed simultaneously. The expansion and contraction performance of the corrugated pipe 32 is used to ensure that the connection between the scum remover 1 and the interior of the U-shaped pipe 31 can be maintained when the scum remover 1 is at different heights, so as to ensure that the scum can be discharged normally.

[0031] Linkage component 2 includes a linear motor 21 fixed to the outside of the fermenter and a fixing ring 25 sleeved on the slag remover 1. A horizontal connecting frame 24 is welded to the side of the fixing ring 25 near the linear motor 21. A rectangular iron block 23 is installed on the side of the horizontal connecting frame 24 near the linear motor 21. An electromagnet 22 is installed on the movable end of the linear motor 21, and the opposite surfaces of the electromagnet 22 and the rectangular iron block 23 are in a magnetic adsorption state.

[0032] Under the magnetic attraction of electromagnet 22 and rectangular iron block 23, the rectangular iron block 23 moves up and down following electromagnet 22. When linear motor 21 drives electromagnet 22 to move up and down, it can synchronously drive the rectangular iron block 23 to move, thereby adjusting the height of the slag remover 1. When the liquid level inside the fermenter changes, the position of the inlet end of the slag remover 1 can be adjusted synchronously. The slag remover 1 can be flexibly adjusted to different liquid levels in the fermenter to adapt to different scum layers, ensuring the cleaning effect of scum. Moreover, the height of the slag remover 1 inside the fermenter is adjustable, and it can be adapted to changes in the liquid level inside the fermenter. It is very flexible and adaptable to different working conditions to ensure effective removal of scum at any liquid level, while reducing energy consumption and maintenance costs, and improving the overall efficiency and stability of the anaerobic fermentation system.

[0033] like Figure 1 As shown, in this embodiment, the drain end of the L-shaped pipe 3 is located outside the fermenter, and the drain end of the L-shaped pipe 3 is connected to the suction port of a negative pressure pump through a pipeline.

[0034] like Figures 1 to 2 As shown in the figure, in this embodiment, a sliding hole 26 is provided at the top of the horizontal connecting frame 24 and at one end near the rectangular iron block 23, and the horizontal connecting frame 24 slides on the vertical end of the L-shaped tube 3 through the sliding hole 26.

[0035] like Figures 3 to 4 As shown in the figure, in this embodiment, the slag remover 1 includes an annular chamber 11, and a lifting pipe 13 is slidably installed coaxially inside the annular chamber 11. A collection chamber 14 is welded to the feed end of the lifting pipe 13.

[0036] like Figures 3 to 4 As shown in the figure, in this embodiment, an annular plate 15 is welded to the outer wall of the lifting pipe 13 and inside the annular chamber 11. Electromagnets 19 are fixed on both sides of the bottom of the annular plate 15. Arc-shaped iron blocks 18 are installed on both sides inside the annular chamber 11, directly below each electromagnet 19. The opposite surfaces of the arc-shaped iron blocks 18 and the electromagnets 19 are magnetically attracted. Four springs 17 are installed at equal intervals between the bottom of the annular plate 15 and the bottom of the inner wall of the annular chamber 11. The scum layer on the liquid surface is collected by the reciprocating movement of the collecting chamber 14 on the liquid surface. The movement of the collecting chamber 14 on the liquid surface causes fluctuations, which promotes the movement of scum towards the collecting chamber 14 and facilitates the rapid entry of scum into the interior of the collecting chamber 14. Furthermore, the fluctuations in the liquid surface help to crack and break the solidified scum, improving the efficiency of scum layer removal.

[0037] like Figure 4As shown, in this embodiment, sliding holes are provided on all four sides of the top of the ring disk 15. The positioning rod 16 is slidably installed on the ring disk 15 through the sliding holes, and the positioning rod 16 is fixed inside the ring chamber 11. The spring 17 is sleeved on the positioning rod 16 and located below the ring disk 15.

[0038] like Figures 3 to 4 As shown, in this embodiment, sealing sleeves 12 are bonded to both the upper inner hole and the lower inner hole of the ring chamber 11, and the inner wall surface of the sealing sleeve 12 is in close contact with the outer wall surface of the lifting pipe 13.

[0039] When in use, the rectangular iron block 23 is magnetically attracted to the electromagnet 22, causing the rectangular iron block 23 to rise and fall with the electromagnet 22. When the linear motor 21 drives the electromagnet 22 to rise and fall, it can synchronously drive the rectangular iron block 23 to move, thereby adjusting the height of the slag remover 1. When the liquid level inside the fermenter changes, the position of the inlet end of the slag remover 1 can be adjusted synchronously, allowing the slag remover 1 to be flexibly adjusted to different liquid levels in the fermenter.

[0040] When adjusting the height of the slag remover 1, the inlet of the collection chamber 14 needs to be adjusted to be above the liquid surface;

[0041] The process of cleaning scum by the scum remover 1 is as follows: the electromagnet 2 19 is turned on intermittently. When the electromagnet 2 19 is turned on, it generates magnetism and magnetically attracts the arc-shaped iron block 18. Under the action of magnetic force, the ring disk 15 is pulled down and the spring 17 is compressed. When the ring disk 15 is pulled down, the collection chamber 14 is pulled down to the liquid level through the riser pipe 13. At this time, the scum layer flows into the interior of the riser pipe 13 through the collection chamber 14 and finally enters the interior of the U-shaped pipe 31 through the corrugated pipe 32. Then, the scum located inside the U-shaped pipe 31 is discharged to the outside by the negative pressure pump.

[0042] Subsequently, when electromagnet 19 is turned off, the magnetic attraction between it and the arc-shaped iron block 18 is released. Under the elastic reset action of spring 17, the lifting pipe 13 is reset upward and the collection chamber 14 returns to the top of the liquid surface. By the reciprocating movement of the collection chamber 14 on and off the liquid surface, the scum layer on the liquid surface is collected.

[0043] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A high-efficiency scum removal device for anaerobic fermenters, characterized in that: It includes a slag remover (1) located inside the fermenter, and an L-shaped pipe (3) installed on the side of the inner wall of the fermenter via a pipe rack. The inlet end of the L-shaped pipe (3) is welded with a U-shaped pipe (31), and the inlet end of the U-shaped pipe (31) and the outlet end of the slag remover (1) are fitted with corrugated pipes (32). The linkage component (2) includes a linear motor (21) fixed outside the fermenter and a fixing ring (25) fitted onto the slag remover (1). A horizontal bracket (24) is welded to the side of the fixing ring (25) near the linear motor (21). A rectangular iron block (23) is installed on the side of the horizontal bracket (24) near the linear motor (21). An electromagnet (22) is installed on the movable end of the linear motor (21), and the electromagnet (22) and the rectangular iron block (23) are in a magnetic adsorption state.

2. The efficient scum removal device for anaerobic fermenters according to claim 1, characterized in that: The drain end of the L-shaped pipe (3) is located outside the fermenter, and the drain end of the L-shaped pipe (3) is connected to the suction port of a negative pressure pump through a pipeline.

3. The efficient scum removal device for anaerobic fermenters according to claim 2, characterized in that: A sliding hole (26) is provided at the top of the horizontal connecting frame (24) and at one end near the rectangular iron block (23), and the horizontal connecting frame (24) slides on the vertical end of the L-shaped tube (3) through the sliding hole (26).

4. The efficient scum removal device for anaerobic fermenters according to claim 3, characterized in that: The slag remover (1) includes an annular chamber (11), and a lifting pipe (13) is slidably installed coaxially inside the annular chamber (11). A collection chamber (14) is welded to the feed end of the lifting pipe (13).

5. The efficient scum removal device for anaerobic fermenters according to claim 4, characterized in that: An annular plate (15) is welded to the outer wall of the lifting pipe (13) and inside the annular chamber (11). Electromagnets 2 (19) are fixed on both sides of the bottom of the annular plate (15). Arc-shaped iron blocks (18) are installed on both sides inside the annular chamber (11) and directly below each electromagnet 2 (19). The opposite surfaces of the arc-shaped iron blocks (18) and the electromagnets 2 (19) are magnetically attracted. Four springs (17) are installed at equal intervals between the bottom of the annular plate (15) and the bottom of the inner wall of the annular chamber (11).

6. The efficient scum removal device for anaerobic fermenters according to claim 5, characterized in that: The top of the ring disk (15) has sliding holes on all four sides. The ring disk (15) is slidably mounted with a positioning rod (16) through the sliding holes. The spring (17) is sleeved on the positioning rod (16) and located below the ring disk (15).

7. The efficient scum removal device for anaerobic fermenters according to claim 6, characterized in that: Sealing sleeves (12) are bonded to both the upper inner hole and the lower inner hole of the ring chamber (11), and the inner wall of the sealing sleeve (12) is in close contact with the outer wall of the lifting pipe (13).

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