Sulfur autotrophic denitrification filter material

Abstract

The utility model discloses a sulfur autotrophic denitrification filter material which comprises an outer shell, openings are formed in the upper end and the lower end of the outer shell, end covers are arranged at the upper end and the lower end of the outer shell, the end covers are detachably connected with the outer shell, a plurality of inner shells are arranged on the inner side of the outer shell, an opening is formed in one end of each inner shell, and a grid is arranged at the other end of each inner shell. The multiple inner shells are arranged in the height direction of the outer shell, and the inner shell adjacent to the end cover is inserted into the end cover; the second annular grooves and the third annular grooves are formed in the side faces, close to each other, of the two end covers, the ends, close to the annular grooves, of the outer shell and the inner shell extend into the annular grooves, and therefore the outer shell and the inner shell can be placed relatively stably; in addition, the end cover is detachably arranged on the outer shell, so that the outer shell and the inner shell can be quickly disassembled and assembled by a worker, support is provided for cleaning the inner shell and the outer shell and replacing the filler, and the current situation that the existing sulfur autotrophic denitrification filter material is difficult to disassemble is changed.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to a sulfur autotrophic denitrification filter material. Background Art

[0002] In the field of water treatment, such as sewage treatment, groundwater remediation, aquaculture, agricultural irrigation water purification, etc., sulfur autotrophic denitrification filter materials are needed to remove nitrates and control the nitrogen content in water. At present, most sulfur autotrophic denitrification filter materials are granular. If they are to be put into use to achieve water treatment, they must be directly put into use.

[0003] At present, the commonly used sulfur autotrophic denitrification filter material includes a filter material shell, a filter material inner shell and granular sulfur autotrophic denitrification filter material (called filler). The specific structure can refer to the sulfur autotrophic denitrification filter material disclosed in a Chinese patent with patent number CN217498804U, which includes a filter material shell, the upper end of the filter material shell is rotatably connected with a filter material top cover, a snap assembly is arranged between the filter material shell and the filter material top cover, a filter material inner shell is arranged on the inner side of the filter material shell, and the interior of the filter material inner shell is filled with composite filter material, a filter material bottom cover is arranged at the lower end of the filter material shell, a sealing ring is fixed to the upper end of the filter material bottom cover, the sealing ring is fitted with the filter material shell, and a positioning snap-fit ​​assembly is arranged between the filter material bottom cover and the filter material shell.

[0004] As described in the above patent, when the sulfur autotrophic denitrification filter material provided is cleaned or the filler is replaced, it is necessary to first release the closed state of the upper end of the filter material shell, that is, press the limit block to rotate the limit block to the inside of the fixed block, release the limit between the fixed block and the first clamping block, and then open the filter material top cover to make the fixed block slide out of the square slot on the inside of the first clamping block. In general, it is necessary to operate the snap assembly or the positioning clamping assembly to release the restrictions of multiple devices of the sulfur autotrophic denitrification filter material.

[0005] However, it can be seen from the contents disclosed in the patent that it is provided with multiple fixed blocks. If you want to control the fixed block to be separated from the first card block, you need to press the limit block to make it sink into the fixed block. However, a spring is provided in the fixed block. If the limit block does not separate from the first card block when it is immersed in the fixed block, it will tilt again under the action of the spring, affecting the disassembly. Because multiple fixed blocks are inserted into the first card block, if you want to separate the top cover from the shell, you need to control multiple limit blocks to sink into the fixed block at the same time, and drive the top cover to rise relative to the shell, and the fixed block is separated from the first card block. One staff member cannot complete the above operation, so it is not conducive to the cleaning and replacement of sulfur autotrophic denitrification filter material. If multiple staff members cooperate, the cost will be higher. Utility Model Content

[0006] The purpose of the present utility model is to provide a sulfur autotrophic denitrification filter material, aiming to improve the problem that the disassembly of the existing sulfur autotrophic denitrification filter material is relatively difficult.

[0007] The present utility model is implemented as follows: A sulfur autotrophic denitrification filter material includes a housing. Both the upper and lower ends of the housing are provided with openings, and end caps are provided at both the upper and lower ends of the housing. The end caps are detachably connected to the housing. A plurality of inner housings are arranged inside the housing. One end of the inner housing is provided with an opening, and the other end is provided with a grid. The plurality of inner housings are arranged along the height direction of the housing, and the inner housing adjacent to the end cap is inserted into the end cap. Packing is arranged inside the inner housing.

[0008] Preferably, the side walls of the two end caps close to each other are both provided with a second annular groove and a third annular groove. The outer diameter of the second annular groove is smaller than the inner diameter of the third annular groove. The outer diameter of the end cap is larger than the outer diameter of the housing.

[0009] Preferably, the end of the inner housing is inserted into the second annular groove, and the end of the housing is inserted into the third annular groove. A rubber layer is provided at the contact between the inner housing and the housing and the annular groove.

[0010] Preferably, a middle plate is arranged inside the housing. The middle plate is located in the middle of the housing, and first through holes are provided on both the middle plate and the housing. One inner housing is respectively arranged on the upper and lower sides of the middle plate.

[0011] Preferably, connecting rods are fixedly arranged on both the upper and lower sides of the middle plate. The end of the connecting rod is provided with a threaded structure. The ends of the two inner housings provided with grids are adjacent to each other and are arranged in contact with the middle plate. The connecting rod penetrates through the inner housing and the end penetrates through the end cap, and at the same time, a nut is sleeved on the thread.

[0012] Preferably, buckle plates are fixedly arranged at both ends of the inner side wall of the housing. There are at least two buckle plates, and the two buckle plates are located at both ends of the same diameter. A ring groove is arranged on the side wall of the third annular groove, and an access groove is communicated with the side of the ring groove. The buckle plate penetrates through the access groove and extends into the ring groove.

[0013] Preferably, a plurality of inner housings are arranged with their upper and lower ends connected end to end. The inner edge of the upper side of the inner housing is provided with a card slot, and a clamping plate is fixedly arranged on the lower side. The clamping plate is adapted to the card slot and extends into the adjacent card slot.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1. The utility model is provided with a second annular groove and a third annular groove on the adjacent sides of two end caps, and the ends of the outer shell and the inner shell adjacent to the annular groove extend into the annular groove. Therefore, the outer shell and the inner shell can be placed relatively stably. In addition, the end cap is detachably arranged on the outer shell, and the staff can operate to realize the quick disassembly and assembly of the outer shell and the inner shell, providing support for cleaning the inner shell, the outer shell and replacing the packing, and changing the current situation that the disassembly of the existing sulfur autotrophic denitrification filter material is relatively difficult.

[0016] 2. The utility model is provided with a screw rod, a middle plate, and inner shells are arranged on both sides of the middle plate. The screw rod and the nut can be used in cooperation to force the end cap to press against the inner shell for stable installation relative to the outer shell. At the same time, the staff can rotate the nut to release the restriction of the end cap, facilitating the disassembly of the inner shell and the outer shell. A buckle plate and an annular groove are provided. The buckle plate can pass through the inlet and outlet groove and enter and exit the annular groove, so that the buckle plate and the annular groove can be used in cooperation to restrict the stable installation of the end cap relative to the outer shell, facilitating the disassembly of the inner shell and the outer shell. Description of the Drawings

[0017] Figure 1 is the structural schematic diagram of the first embodiment of the utility model;

[0018] Figure 2 is the structural schematic diagram of the second embodiment of the utility model;

[0019] Figure 3 is the structural schematic diagram of the first outer shell of the utility model;

[0020] Figure 4 is the structural schematic diagram of the first end cap of the utility model;

[0021] Figure 5 is the structural schematic diagram of the first inner shell of the utility model;

[0022] Figure 6 is the structural schematic diagram of the second embodiment of the utility model;

[0023] Figure 7 is the structural schematic diagram of the second outer shell of the utility model;

[0024] Figure 8 is the structural schematic diagram of the second end cap of the utility model;

[0025] Figure 9 is the structural schematic diagram of the second inner shell of the utility model;

[0026] Figure 10 is the structural schematic diagram of the third inner shell of the utility model.

[0027] In the figure: 1. Outer shell; 11. First through-hole; 12. Middle plate; 13. Connecting rod; 14. First annular groove; 15. Clamping plate; 2. End cover; 21. Connecting hole; 22. Second annular groove; 23. Polygonal groove; 24. Third annular groove; 25. Inlet and outlet groove; 26. Ring groove; 3. Packing; 4. Inner shell; 41. Second through-hole; 42. Mesh; 43. Card slot. Detailed implementation manners

[0028] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0029] The following will be further described in conjunction with the accompanying drawings and specific embodiments:

[0030] Embodiment 1

[0031] In order to facilitate the disassembly of the sulfur autotrophic denitrification filter material, realize the cleaning of the sulfur autotrophic denitrification filter material and the replacement of the packing, this embodiment improves the existing technology to obtain this technical solution. The specific technical solution is as follows.

[0032] As Figure 1 、 Figure 6 shown, the sulfur autotrophic denitrification filter material includes an outer shell 1, an inner shell 4 and an end cover 2. Both the upper and lower ends of the outer shell 1 are set as openings, and two end covers 2 are respectively detachably arranged at the upper and lower ends of the outer shell 1. One end of the inner shell 4 is set as an opening, and the other end is provided with a mesh 42. The inner shell 4 is arranged in the space formed by the outer shell 1 and the end cover 2, and at the same time, the inside is filled with a packing 3. The pore diameter of the mesh 42 is smaller than the particle diameter of the packing 3. The packing 3 is set as the sulfur autotrophic denitrification filter material, thereby realizing the stable storage of the packing 3. In order to realize the treatment of water through the packing 3, first through-holes 11 are uniformly arranged on the side wall of the outer shell 1, and second through-holes 41 are uniformly arranged on the side wall of the inner shell 4. The pore diameters of the second through-holes 41 and the first through-holes 11 are both smaller than the particle diameter of the packing 3. Therefore, while realizing the water flow, the packing 3 is prevented from detaching from the outer shell 1 and the inner shell 4.

[0033] In order to stably place the inner shell 4 and the outer shell 1 relative to each other, second annular grooves 22 and third annular grooves 24 are provided on the side walls of the two end caps 2 close to each other. The outer diameter of the second annular groove 22 is smaller than the inner diameter of the third annular groove 24, and the outer diameter of the end cap 2 is larger than the outer diameter of the outer shell 1. The end of the inner shell 4 is inserted into the second annular groove 22, and the end of the outer shell 1 is inserted into the third annular groove 24. A rubber layer is provided at the contact between the inner shell 4 and the outer shell 1 and the annular groove. Since the ends of the outer shell 1 and the inner shell 4 are inserted into the annular grooves of the adjacent end caps 2, the positions of the outer shell 1 and the inner shell 4 can be restricted, and the dislocation caused by the relative movement of the outer shell 1 and the inner shell 4 due to the movement of the water flow can be avoided.

[0034] Embodiment 2

[0035] In order to facilitate the disassembly of the sulfur autotrophic denitrification filter material, clean the sulfur autotrophic denitrification filter material and replace the filler, this embodiment improves the existing technology to obtain the technical solution of the present invention. The specific technical solution is as follows.

[0036] As Figure 1 、 Figure 6 shown, the sulfur autotrophic denitrification filter material includes an outer shell 1, an inner shell 4 and end caps 2. Both the upper and lower ends of the outer shell 1 are open. The two end caps 2 are respectively detachably arranged at the upper and lower ends of the outer shell 1. One end of the inner shell 4 is open, and the other end is provided with a grid 42. The inner shell 4 is arranged in the space formed by the outer shell 1 and the end caps 2, and at the same time, a filler 3 is filled inside. The aperture of the grid 42 is smaller than the particle size of the filler 3. The filler 3 is set as the sulfur autotrophic denitrification filter material, so as to realize the stable storage of the filler 3. In order to treat water through the filler 3, first through holes 11 are uniformly arranged on the side wall of the outer shell 1, and second through holes 41 are uniformly arranged on the side wall of the inner shell 4. The apertures of the second through holes 41 and the first through holes 11 are both smaller than the particle size of the filler 3. Therefore, when water circulation is realized, the filler 3 is prevented from detaching from the outer shell 1 and the inner shell 4.

[0037] In order to stably place the inner shell 4 and the outer shell 1 relative to each other, second annular grooves 22 and third annular grooves 24 are provided on the side walls of the two end caps 2 close to each other. The outer diameter of the second annular groove 22 is smaller than the inner diameter of the third annular groove 24, and the outer diameter of the end cap 2 is larger than the outer diameter of the outer shell 1. The end of the inner shell 4 is inserted into the second annular groove 22, and the end of the outer shell 1 is inserted into the third annular groove 24. A rubber layer is provided at the contact between the inner shell 4 and the outer shell 1 and the annular groove. Since the ends of the outer shell 1 and the inner shell 4 are inserted into the annular grooves of the adjacent end caps 2, the positions of the outer shell 1 and the inner shell 4 can be restricted, and the dislocation caused by the relative movement of the outer shell 1 and the inner shell 4 due to the movement of the water flow can be avoided.

[0038] As Figures 2 - 5As shown in the figure, in order to prevent the inner shell 4 from detaching from the outer shell 1, a middle plate 12 is provided inside the outer shell 1. The middle plate 12 is located in the middle of the outer shell 1. The first through holes 11 and the first annular grooves 14 are also provided on the middle plate 12. Connecting rods 13 are fixedly provided on both the upper and lower sides of the middle plate 12, and threaded structures are provided at the ends of the connecting rods 13. Two inner shells 4 are provided inside the outer shell 1. The ends of the two inner shells 4 with the meshes 42 are adjacent to each other and are arranged in contact with the middle plate 12. At the same time, the ends are inserted into the first annular grooves 14. The connecting rods 13 pass through the inner shells 4 and the connecting holes 21 of the end caps 2 at the ends. At the same time, nuts are sleeved on the threads. Under the cooperation of the nuts and the connecting rods 13, the end caps 2 can be forced to be stably placed in contact with the outer shell 1. Since the ends of the outer shell 1 and the inner shell 4 are inserted into their adjacent annular grooves, under the action of the end caps 2, the outer shell 1 and the inner shell 4 are relatively stably placed. When it is necessary to clean the inner shell 4, the outer shell 1, and replace the packing 3, the staff can rotate the nuts to release the restriction of the end caps 2, so that both ends of the outer shell 1 are unobstructed, so as to take out the inner shell 4, which provides convenience for cleaning the outer shell 1, the inner shell 4, and replacing the packing 3.

[0039] Embodiment 3

[0040] In order to facilitate the disassembly of the sulfur autotrophic denitrification filter material, realize the cleaning of the sulfur autotrophic denitrification filter material and the replacement of the packing, this embodiment improves the existing technology to obtain the technical solution of the present invention. The specific technical solution is as follows.

[0041] As Figure 1 、 Figure 6 shown, the sulfur autotrophic denitrification filter material includes an outer shell 1, an inner shell 4, and end caps 2. Both the upper and lower ends of the outer shell 1 are provided with openings. Two end caps 2 are respectively detachably provided at the upper and lower ends of the outer shell 1. One end of the inner shell 4 is provided with an opening, and the other end is provided with a mesh 42. The inner shell 4 is arranged in the space formed by the outer shell 1 and the end caps 2, and at the same time, the inside is filled with packing 3. The aperture of the mesh 42 is smaller than the particle size of the packing 3. The packing 3 is set as the sulfur autotrophic denitrification filter material, so as to realize the stable storage of the packing 3. In order to be able to treat water through the packing 3, first through holes 11 are uniformly provided on the side wall of the outer shell 1, and second through holes 41 are uniformly provided on the side wall of the inner shell 4. The apertures of the second through holes 41 and the first through holes 11 are both smaller than the particle size of the packing 3. Therefore, while realizing the water flow, the packing 3 is prevented from detaching from the outer shell 1 and the inner shell 4.

[0042] In order to stably place the inner shell 4 and the outer shell 1 relative to each other, second annular grooves 22 and third annular grooves 24 are provided on the side walls of the two end caps 2 close to each other. The outer diameter of the second annular groove 22 is smaller than the inner diameter of the third annular groove 24, and the outer diameter of the end cap 2 is larger than the outer diameter of the outer shell 1. The end of the inner shell 4 is inserted into the second annular groove 22, and the end of the outer shell 1 is inserted into the third annular groove 24. A rubber layer is provided at the contact between the inner shell 4 and the outer shell 1 and the annular groove. Since the ends of the outer shell 1 and the inner shell 4 are inserted into the annular grooves of the adjacent end caps 2, the positions of the outer shell 1 and the inner shell 4 can be restricted, avoiding dislocation caused by the relative movement of the outer shell 1 and the inner shell 4 due to the movement of the water flow.

[0043] As Figures 7 - 10 shown, in order to prevent the inner shell 4 from detaching from the outer shell 1, buckles 15 are fixedly provided at both ends of the inner side wall of the outer shell 1. There are at least two buckles 15, and the two buckles 15 are located at both ends of the same diameter. A ring groove 26 is provided on the side wall of the third annular groove 24, and an access groove 25 is provided on the side of the ring groove 26 in a communicating manner. The access grooves 25 of the two end caps 2 are both located between the two ring grooves 26, that is, the end of the access groove 25 extends to the side of the end cap 2. When the end cap 2 is sleeved on the outer shell 1, the buckle 15 moves through the access groove 25. When the buckle 15 enters and exits the ring groove 26, that is, when the end cap 2 can no longer move along the length direction of the outer shell 1, the staff can rotate the end cap 2 to make the buckle 15 move in the ring groove 26. Since a rubber layer is provided at the contact between the annular groove and the outer shell 1, the buckle 15 can be stably installed relative to the ring groove 26 under the action of the rubber layer, avoiding its easy movement. In addition, polygonal grooves 23 are provided on the end walls of the two end caps 2 away from each other, and the staff can insert a polygonal wrench into the polygonal groove 23 to control the rotation of the end cap 2.

[0044] In this case, one inner shell 4 can be provided, that is, the height of the inner shell 4 is equal to the height of the outer shell 1. At this time, both ends of the inner shell 4 are in contact with the two end caps 2 respectively.

[0045] Similarly, multiple inner shells 4 connected end to end can also be provided. A card slot 43 is provided at the inner edge of the upper side of the inner shell 4, and a clamping plate is fixedly provided on the lower side. The clamping plate is adapted to the card slot 43 and extends into the adjacent card slot 43. With the cooperation of the card slot 43 and the clamping plate, the adjacent inner shells 4 are stably plugged together, and thus multiple inner shells 4 can be stably installed relative to the outer shell 1.

[0046] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sulfur autotrophic denitrification filter material, characterized in that: The invention comprises an outer shell (1), wherein both upper and lower ends of the outer shell (1) are arranged to be openings, and end covers (2) are arranged at both upper and lower ends of the outer shell (1), and the end covers (2) are detachably connected to the outer shell (1). A plurality of inner shells (4) are arranged on the inner side of the outer shell (1), and one end of the inner shell (4) is arranged to be openings, and the other end is arranged to be provided with a grid (42). The plurality of inner shells (4) are arranged along the height direction of the outer shell (1), and the inner shell (4) adjacent to the end cover (2) is inserted into the end cover (2), and a filler (3) is arranged in the inner shell (4).

2. A sulfur autotrophic denitrification filter material according to claim 1, characterized in that: The side walls of the two end covers (2) close to each other are both provided with a second annular groove (22) and a third annular groove (24); the outer diameter of the second annular groove (22) is smaller than the inner diameter of the third annular groove (24); and the outer diameter of the end cover (2) is larger than the outer diameter of the housing (1).

3. A sulfur autotrophic denitrification filter material according to claim 2, characterized in that: The end of the inner shell (4) is inserted into the second annular groove (22), and the end of the outer shell (1) is inserted into the third annular groove (24). A rubber layer is provided at the contact points between the inner shell (4) and the outer shell (1) and the annular grooves.

4. A sulfur autotrophic denitrification filter material according to claim 3, characterized in that: A middle plate (12) is arranged on the inner side of the outer shell (1), the middle plate (12) is located in the middle of the outer shell (1), and a first through hole (11) is arranged on both the middle plate (12) and the outer shell (1): an inner shell (4) is arranged on the upper and lower sides of the middle plate (12), respectively.

5. A sulfur autotrophic denitrification filter material according to claim 4, characterized in that: Connecting rods (13) are fixedly arranged on both the upper and lower sides of the middle plate (12), and the ends of the connecting rods (13) are provided with threaded structures. The ends of the two inner shells (4) provided with grids (42) are adjacent to each other and are arranged in close contact with the middle plate (12). The connecting rod (13) passes through the inner shell (4) and the ends pass through the end cover (2), and a nut is provided on the threaded sleeve.

6. A sulfur autotrophic denitrification filter material according to claim 3, characterized in that: Both ends of the inner wall of the shell (1) are fixedly provided with buckle plates (15), at least two buckle plates (15) are provided, and the two buckle plates (15) are located at the two ends of the same diameter, a ring groove (26) is provided on the side wall of the third annular groove (24), and an inlet and outlet groove (25) is provided on the side edge of the ring groove (26), and the buckle plate (15) penetrates the inlet and outlet groove (25) and extends into the ring groove (26).

7. A sulfur autotrophic denitrification filter material according to claim 6, characterized in that: The inner shell (4) is provided with a plurality of upper and lower end-to-end connected parts, the inner edge of the upper side of the inner shell (4) is provided with a card slot (43), and the lower side is fixedly provided with a card plate, which is adapted to the card slot (43) and extends into an adjacent card slot (43).

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