Water area sludge treatment equipment

Abstract

The invention discloses water area sludge treatment equipment which comprises an equipment body, a treatment box is arranged above the equipment body, a concave cavity is formed below the treatment box, a sludge pressing and holding mechanism is arranged in the treatment box, a feeding opening is formed in the upper portion of the sludge pressing and holding mechanism, and two sets of upper carrying plates are symmetrically arranged below the feeding opening; a sludge injection opening communicated with the feeding opening is formed in the surface of the equipment body, the sludge pressing and holding mechanism comprises a movable pressing plate and a fixed plate, the fixed plate is fixed to the inner wall of the treatment box through a connecting column, a plurality of elastic telescopic movable frames are arranged between the movable pressing plate and the fixed plate, and optical shafts are arranged at the four corners among the movable pressing plate, the fixed plate and the movable frames. The movable pressing plate and the movable frame body can translate along the optical axis, an extrusion rod is arranged on the outer side of the movable pressing plate, and the extrusion rod extends outwards at the through hole; when the water area sludge treatment equipment is used, sludge-water separation can be effectively achieved, separated water liquid can be collected and discharged, mud cakes can be compressed and recycled, and the water area sludge treatment equipment is suitable for application and popularization.

Description

Technical Field

[0001] The present invention relates to the technical field of sludge treatment in water conservancy projects, and particularly to a water area sludge treatment device. Background Art

[0002] The formation of water area sludge mainly has the following three reasons: First, in slow-flow areas such as rivers, lakes or reservoirs, suspended particles (such as sediment and clay) carried by the water body gradually deposit due to gravity, thus forming a sludge layer; Second, the water flow scours the surface rocks and soils, and the carried minerals, organic matters, etc. are gradually accumulated and transformed into sludge after microbial action and chemical reactions; Third, projects such as dikes and sluices change the water flow conditions, resulting in sediment siltation, and the sediment settlement is aggravated due to the reduction of the flow velocity during the operation of the reservoir.

[0003] The accumulated sludge usually contains heavy metals (such as lead and cadmium) and refractory organic matters. These pollutants can be enriched through the food chain, threatening the health of water organisms and even humans. In addition, the release of nutrients such as nitrogen and phosphorus aggravates water eutrophication and destroys the ecological balance; the diffusion of toxic substances leads to the decline of the ecological service functions of sensitive areas such as wetlands; Therefore, it is necessary to treat the accumulated sludge.

[0004] The invention patent with the publication number of CN107088321B discloses a mud-water separation device and a sludge treatment device, belonging to the technical field of sludge treatment. It includes a box body with an opening and a separation component. The separation component includes a partition and a vacuum suction pipe with one end closed. The partition is installed in the box body, and a mud-water separation cavity is formed between the opening and the partition, and a water collection cavity is formed between the partition and the box body. The opening is located at one end of the mud-water separation cavity. A plurality of through holes are provided on the peripheral wall of the vacuum suction pipe, and the plurality of through holes are spaced apart. A filter screen is installed in each through hole. The vacuum suction pipe is inserted into the partition, and the open end of the vacuum suction pipe communicates with the water collection cavity through the through hole. When the mud-water separation device separates mud and water, the efficiency of mud-water separation is high, and the maintenance cost of the device is low.

[0005] Although the above treatment device can realize the separation of sludge from mud and water, in actual use, the separated water liquid cannot be collected and discharged centrally, and the separated mud residue and mud cake are not conducive to compression and recovery, and the use effect is not ideal. Summary of the Invention

[0006] The purpose of the present invention is to solve the above problems and provide a water area sludge treatment device that can effectively realize the separation of mud and water, and the separated water liquid can be collected and discharged, and the mud cake can also be compressed and recovered.

[0007] To achieve the above object, the technical solution of the present invention is: a water area sludge treatment device, including a device body, a treatment tank is provided above the device body, a concave cavity is provided below the treatment tank, a sludge pressing mechanism is provided in the treatment tank, a feed inlet is provided above the sludge pressing mechanism, two groups of upper loading plates are symmetrically provided below the feed inlet, and a mud injection port communicating with the feed inlet is provided on the surface of the device body. The sludge pressing mechanism includes a movable pressing plate and a fixed plate. The fixed plate is fixed on the inner wall of the treatment tank through a connecting column. A plurality of elastically telescopic moving frames are provided between the movable pressing plate and the fixed plate. Optical axes are provided at the four corners between the movable pressing plate, the fixed plate and the moving frames. The movable pressing plate and the moving frames can translate along the optical axes. An extrusion rod is provided outside the movable pressing plate, and the extrusion rod extends outwards at the through hole.

[0008] Preferably, the lower surface of the upper loading plate is attached to the upper surface of the moving frame, and the upper loading plate never detaches from the device body.

[0009] Preferably, adjustment holes are provided at the four corners of the moving frame, compression springs are provided in the adjustment holes, the optical axes penetrate through all the moving frames in the compression springs, and adjacent moving frames do not contact under normal conditions, and adjacent moving frames are attached to each other during treatment.

[0010] Preferably, flexible filter cloths are provided on the vertical sides on both sides of the moving frame, filter holes are provided on the surface of the flexible filter cloths, and the flexible filter cloths are retracted and unfolded as the moving frame moves along the optical axis.

[0011] Preferably, concave platforms are provided on both sides of the moving frame, inclined planes are provided around the concave platforms, air bags are provided in the concave platforms, the inner sides of the air bags are fixed in the concave platforms, cavities are provided in the air bags, air pipes II connecting the air bags are provided outside the moving frame, the air pipes II are in a Y shape, an air pipe I is provided outside the device body, the air pipes II extend outwards and communicate with the air pipe I, and the end of the air pipe I is connected to an air pump, and the operation of the air pump drives the air bags to expand or contract.

[0012] Preferably, two groups of split lower loading plates are further provided below the sludge pressing mechanism. One end of the lower loading plate is provided with a fixing hole. A servo motor is provided outside the device body. The output shaft of the servo motor passes through the side wall of the device body and is fixed in the fixing hole. The lower loading plate is opened and closed through the servo motor. Under normal conditions, the lower loading plate is attached to the bottom surface of the moving frame, and the lower loading plate opens vertically downwards after being opened.

[0013] Preferably, a plurality of drainage grooves are provided on the surface of the lower loading plate.

[0014] Preferably, a Z-shaped support plate is further provided on one side of the download plate away from the fixing hole. One end of the Z-shaped support plate is arranged at the splicing position below the two download plates, and the other end is upturned. A cylinder is arranged below the upturned part. A through pin shaft is arranged in the Z-shaped support plate, and both ends of the pin shaft are rotatably connected to the inner wall of the equipment body.

[0015] Preferably, a drainage plate is further provided inside the equipment body. The drainage plate includes an upper receiving groove and a lower receiving groove at the bottom. Both the upper receiving groove and the lower receiving groove are U-shaped. The upper receiving groove is arranged below the flexible filter cloth, and the download plate is communicated with the lower receiving groove through a drainage groove.

[0016] Preferably, a drain pipe is further provided outside the equipment body. One end of the drain pipe is connected to the upper receiving groove and the lower receiving groove through a three-way valve, and the other end extends outward.

[0017] A water area sludge treatment device disclosed by the present invention includes an equipment body. A treatment box is arranged above the equipment body, and a concave cavity is arranged below the treatment box. A sludge pressing mechanism is arranged inside the treatment box. An inlet is arranged above the sludge pressing mechanism, and two upper loading plates are symmetrically arranged below the inlet. A mud injection port communicating with the inlet is arranged on the surface of the equipment body. The sludge pressing mechanism includes a movable pressing plate and a fixed plate. The fixed plate is fixed to the inner wall of the treatment box through a connecting column. A plurality of elastically telescopic moving frames are arranged between the movable pressing plate and the fixed plate. Optical axes are arranged at four corners between the movable pressing plate, the fixed plate and the moving frames. The movable pressing plate and the moving frames can translate along the optical axes. An extrusion rod is arranged outside the movable pressing plate, and the extrusion rod extends outward at a through hole. Compared with the prior art, when the water area sludge treatment device is used, it has the beneficial effects of effectively realizing mud-water separation, and the separated water liquid can be collected and discharged, and the mud cake can also be compressed and recovered. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of a water area sludge treatment device of the present invention Figure 1 。

[0019] Figure 2 is a schematic diagram of the overall structure of a water area sludge treatment device of the present invention Figure 2 。

[0020] Figure 3 is a schematic diagram of the structure of the sludge pressing mechanism in a water area sludge treatment device of the present invention.

[0021] Figure 4 For the present invention Figure 3 is an enlarged schematic diagram of the structure at A.

[0022] Figure 5Schematic diagram of the cooperation between the sludge pressing mechanism and the feeding port in a water area sludge treatment device of the present invention Figure 1 。

[0023] Figure 6 Schematic diagram of the cooperation between the sludge pressing mechanism and the feeding port in a water area sludge treatment device of the present invention Figure 2 。

[0024] Figure 7 Internal structure schematic diagram of the sludge pressing mechanism in a water area sludge treatment device of the present invention.

[0025] Figure 8 Schematic diagram of the structure of two adjacent moving frames in a water area sludge treatment device of the present invention Figure 1 。

[0026] Figure 9 Schematic diagram of the structure of two adjacent moving frames in a water area sludge treatment device of the present invention Figure 2 。

[0027] Figure 10 Internal structure schematic diagram of the moving frame in a water area sludge treatment device of the present invention.

[0028] In the figure: 1. Equipment body; 11. Drainage plate; 12. Upper receiving groove; 13. Lower receiving groove; 2. Treatment box; 21. Movable pressing plate; 22. Fixed plate; 221. Connecting column; 23. Moving frame; 231. Adjusting hole; 232. Compression spring; 233. Airbag; 2331. Cavity; 234. Concave platform; 24. Flexible filter cloth; 241. Filter hole; 25. Optical axis; 26. Download plate; 261. Z-shaped support plate; 262. Pin shaft; 263. Cylinder; 264. Fixed hole; 265. Drainage groove; 3. Concave cavity; 4. Mud injection port; 41. Feeding port; 42. Upper loading plate; 5. Air pump; 6. Air pipe 1; 61. Air pipe 2; 7. Through hole; 71. Extrusion rod; 8. Drain pipe; 9. Observation door; 10. Servo motor. Detailed implementation manners

[0029] Now, the present invention will be further described in detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the components related to the present invention.

[0030] Please refer to Figure 1-10, a water area sludge treatment device, including a device body 1. Above the device body 1, there is a treatment tank 2. Below the treatment tank 2, there is a concave cavity 3. Inside the treatment tank 2, there is a sludge pressing mechanism. Above the sludge pressing mechanism, there is a feed inlet 41. Symmetrically arranged below the feed inlet 41 are two groups of upper carrier plates 42. On the surface of the device body 1, there is a mud injection port 4 communicating with the feed inlet 41. The sludge pressing mechanism includes a movable pressing plate 21 and a fixed plate 22. The fixed plate 22 is fixed to the inner wall of the treatment tank 2 through a connecting column 221. Between the movable pressing plate 21 and the fixed plate 22, there are multiple elastically telescopic moving frames 23. At the four corners between the movable pressing plate 21, the fixed plate 22 and the moving frames 23, there are optical axes 25. The movable pressing plate 21 and the moving frames 23 can translate along the optical axes 25. Outside the movable pressing plate 21, there is a pressing rod 71, and the pressing rod 71 extends outwards at a through hole 7.

[0031] During use, the sludge enters the feed inlet 41 at the mud injection port 4, so that the sludge finally enters both sides of the moving frame 23. After entering, the pressing rod 71 is extruded by an external extrusion device, causing the movable pressing plate 21 and multiple moving frames 23 to move towards the fixed plate 22. After moving, the sludge on both sides of the moving frame 23 is extruded, thus realizing the separation of mud and water. After separation, the water liquid is discharged externally, while the sludge forms a mud cake, which finally falls downward from the treatment tank 2, and then the mud cake is cleaned in the concave cavity 3.

[0032] In this embodiment, the lower surface of the upper carrier plate 42 is attached to the upper surface of the moving frame 23, and the upper carrier plate 42 never detaches from the device body 1. The purpose of setting the upper carrier plate 42 is to block the sludge on both sides of the moving frame 23 and prevent the sludge from splashing upwards between the two moving frames 23 during the moving extrusion process.

[0033] After extruding the sludge to realize the separation of mud and water, in order to facilitate the mutual pushing away of the moving frames 23 from each other to make the mud cake fall, at the four corners of the moving frame 23, there are adjustment holes 231. Inside the adjustment holes 231, there are compression springs 232. The optical axes 25 penetrate through all the moving frames 23, as well as the movable pressing plate 23 and the fixed plate 22, inside the compression springs 232. Under normal conditions, adjacent moving frames 23 do not contact, and during treatment, adjacent moving frames 23 are in contact with each other. At the same time, on both sides of the moving frame 23, on the vertical sides, there are flexible filter cloths 24. On the surface of the flexible filter cloths 24, there are filter holes 241. When the moving frame 23 moves along the optical axes 25, the flexible filter cloths 24 expand and contract accordingly.

[0034] When squeezing to achieve mud - water separation, the sludge on both sides of the moving frame 23 is under pressure. At this time, the internal water liquid will flow out from the flexible filter cloth 24, while the sludge continues to stay on both sides of the moving frame 23. Since the moving frame 23 can move along the optical axis 25, the flexible filter cloth 24 stretches accordingly during the movement to match the spacing at different distances.

[0035] To further improve the mud - water separation effect, concave platforms 234 are provided on both sides of the moving frame 23. There are inclined planes around the concave platforms 234. An airbag 233 is arranged in the concave platform 234. The inner side of the airbag 233 is fixed in the concave platform 234. A cavity 2331 is arranged in the airbag 233. A second air pipe 61 connecting the airbag 233 is arranged on the outer side of the moving frame 23. The second air pipe 61 is in a Y - shape. A first air pipe 6 is arranged on the outer side of the equipment body 1. The second air pipe 61 extends outwards to communicate with the first air pipe 6. The end of the first air pipe 6 is connected to an air pump 5. The operation of the air pump 5 drives the airbag 233 to expand or contract.

[0036] Please refer to again Figure 9 , when the sludge enters between the two airbags 233, with the mutual approach and extrusion of the moving frames 23, mud - water separation is achieved. At the same time, when the air pump 5 operates, the airbag 233 expands. At this time, the expanded airbag 233 will further extrude the internal sludge, further improving the mud - water separation effect. After the expansion and extrusion of the airbag 233, the internal sludge forms a mud cake. As Figure 8 shown, after the mud cake is formed, the air pump 5 is started again to pump air, causing the airbag 233 to contract, reducing the contact area between the airbag and the mud cake, which is conducive to the mud cake detaching from the treatment box 2.

[0037] When the sludge extrusion is completed, the extrusion rod 71 retracts. At this time, through the push of the compression spring 232 between the multiple moving frames 23, the distance between the moving frames 23 increases. At this time, the air pump 5 is started again to blow air, causing the airbag 233 to expand again. The expanded airbag 233 will push the mud cake, and at this time, the mud cake falls off under the thrust and drops into the concave cavity 3.

[0038] To prevent the sludge from overflowing from the bottom during extrusion and to facilitate the shielding and falling off of the mud cake, two groups of split download plates 26 are also provided below the sludge pressing mechanism. One end of the download plate 26 is provided with a fixing hole 264. A servo - motor 10 is arranged on the outer side of the equipment body 1. The output shaft of the servo - motor 10 passes through the side wall of the equipment body 1 and is fixed in the fixing hole 264. The download plate 26 is opened and closed through the servo - motor 10.

[0039] When squeezing is required to separate mud and water, the servo motor 10 drives the two download plates 26 to make the download plates 26 fit the bottom surface of the movable frame 23. At this time, the internal sludge will not overflow during squeezing due to the shielding of the download plates 26. Similarly, when the squeezing is completed, the servo motor 10 drives the download plates 26 to flip over again, so that the two download plates 26 hang down. After hanging down, the squeezing rod 71 is retracted to increase the distance between the movable frames 23. At this time, there is no foreign object blocking the bottom of the mud cake. The secondary blowing of the air pump 5 pushes the mud cake away from the movable frame and causes it to fall.

[0040] It is understandable that the surface of the download plate 26 is provided with a plurality of drainage grooves 265 , and the arrangement of the drainage grooves 265 can also receive the separated muddy water, so that the muddy water drained by the drainage grooves 265 and the muddy water filtered by the filter holes 241 are collected together.

[0041] Specifically, a drainage plate 11 is further provided on the inner side of the equipment body 1, and the drainage plate 11 includes an upper receiving groove 12 and a lower receiving groove 13 at the bottom. The upper receiving groove 12 and the lower receiving groove 13 are both U-shaped. The upper receiving groove 12 is provided below the flexible filter cloth 24. After squeezing, the water is sprayed toward the drainage plate 11 through the filter hole 241 and finally converges in the upper receiving groove 12. The download plate 26 is connected to the lower receiving groove 13 through the drainage groove 265. The water drained by the drainage groove 265 flows into the lower receiving groove 13, realizing the upper and lower water connection, and avoiding the water and the separated mud cake from contacting and mixing again.

[0042] A drain pipe 8 is also provided on the outside of the equipment body 1. One end of the drain pipe 8 is connected to the upper receiving tank 12 and the lower receiving tank 13 through a three-way valve, and the other end extends outward. The water in the upper receiving tank 12 and the lower receiving tank 13 eventually converges in the drain pipe 8 and is discharged from the equipment body 1 through the drain pipe 8, thereby fully realizing mud and water separation.

[0043] Based on the above embodiment, since the download plate 26 is opened and closed only by two servo motors 10, there is no external force support after merging, resulting in poor merging strength and causing mud and water to flow out at the joint; in order to improve the merging strength of the two download plates 26 and prevent mud and water from seeping at the joint, a Z-shaped support plate 261 is further provided on the side of the download plate 26 away from the fixing hole 264. One end of the Z-shaped support 261 is provided at the joint below the two groups of download plates 26, and the other end is tilted upward. A cylinder 263 is provided below the tilted portion, and the output end of the cylinder 263 is hinged to the tilted portion. A pin shaft 262 is provided through the Z-shaped support plate 261, and both ends of the pin shaft 262 are rotatably connected to the inner wall of the equipment body 1.

[0044] That is to say, during the sludge-water separation process, the lower section of the Z-shaped support plate 261 is arranged at the joint below the two lower download plates. At this time, when the cylinder 263 contracts, the Z-shaped support plate 261 is pushed upward through the pin shaft 262. At this time, the two lower download plates 26 are lifted by the Z-shaped support plate 261, and the lower download plates 26 will not sag after being lifted; similarly, when the cylinder ......

[0045] After the Z-shaped support plate 261 is turned downward through the pin shaft 262, the servo motor 10 is started to turn the two lower download plates 26 downward to realize the separation of the mud cake.

[0046] The usage steps of the sludge treatment equipment are as follows: First, drive the two lower download plates 26 by the servo motor 10 to block the bottom of the moving frame body 23, and then inject sludge at the mud injection port 4, so that the sludge enters the feed port 41 and flows into both sides of the moving frame body 23; then push the upper load plate 42 to block the upper surface of the moving frame body 23; then start the extrusion rod 71 to make the extrusion rod 71 push the movable pressing plate 21 to extrude the inner moving frame body 23; with the extrusion of the extrusion rod 71, the water liquid in the sludge flows out to initially realize the sludge-water separation; then start the air pump 5 to make the airbag 233 expand once. After expansion, the sludge can be extruded again to further realize the sludge-water separation; after the sludge-water separation is completed, start the air pump 5 to make the airbag 233 contract. After contraction, the airbag 233 does not contact the mud cake; secondly, loosen the extrusion rod 71 to increase the distance between the moving frame bodies 23, and start the servo motor again to drive the lower download plates to turn downward to reserve space for the discharge of the mud cake; finally, the air pump 5 blows air to make the airbag 233 expand twice, and the expanded airbag pushes the adhered mud cake to fall into the concave cavity.

[0047] Based on the above embodiments, when extruding the sludge to realize the sludge-water separation, the Z-shaped support plate 261 supports the two lower download plates; when separating the mud cake, the Z-shaped support plate 261 turns downward and does not contact the lower download plates.

[0048] Obviously, the above embodiments are only examples clearly described and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. An aquatic sludge treatment device, comprising a device body, a treatment tank is arranged above the device body, and a concave cavity is arranged below the treatment tank, characterized in that, A sludge pressing mechanism is provided inside the treatment tank. Above the sludge pressing mechanism, there is a feed inlet. Below the feed inlet, two groups of upper loading plates are symmetrically arranged. On the surface of the equipment body, there is a mud injection port communicating with the feed inlet. The sludge pressing mechanism includes a movable pressing plate and a fixed plate. The fixed plate is fixed on the inner wall of the treatment tank through connecting columns. Between the movable pressing plate and the fixed plate, there are a plurality of elastically telescopic moving frames. At the four corners between the movable pressing plate, the fixed plate and the moving frames, there are optical axes. The movable pressing plate and the moving frames can translate along the optical axes. On the outer side of the movable pressing plate, there is an extrusion rod, and the extrusion rod extends outward at the through hole.

2. The water area sludge treatment equipment according to claim 1, characterized in that The lower surface of the upper loading plate is in contact with the upper surface of the moving frame, and the upper loading plate never detaches from the equipment body.

3. The water area sludge treatment equipment according to claim 2, characterized in that, At the four corners of the moving frame, there are adjusting holes. Inside the adjusting holes, there are compression springs. The optical axes penetrate through all the moving frames inside the compression springs. Under normal conditions, adjacent moving frames do not contact, and during processing, adjacent moving frames are in contact with each other.

4. The water area sludge treatment equipment according to claim 3, characterized in that, On both sides of the moving frame, there are flexible filter cloths on the vertical sides. The surface of the flexible filter cloth is provided with filter holes. When the moving frame moves along the optical axis, the flexible filter cloth expands and contracts accordingly.

5. The water area sludge treatment equipment according to any one of claims 1-4, characterized in that On both sides of the moving frame, there are concave platforms. Around the concave platforms, there are inclined planes. Inside the concave platforms, there are air bags. The inner side of the air bags is fixed inside the concave platforms. Inside the air bags, there are cavities. On the outer side of the moving frame, there is an air pipe two connecting to the air bags. The air pipe two is in a Y shape. On the outer side of the equipment body, there is an air pipe one. The air pipe two extends outward and communicates with the air pipe one. The end of the air pipe one is connected to an air pump, and the operation of the air pump drives the air bags to expand or contract.

6. The water area sludge treatment equipment according to claim 5, characterized in that Below the sludge pressing mechanism, there are also two groups of split lower loading plates. One end of the lower loading plate is provided with a fixing hole. On the outer side of the equipment body, there is a servo motor. The output shaft of the servo motor passes through the side wall of the equipment body and is fixed in the fixing hole. The lower loading plate is opened and closed through the servo motor. Under normal conditions, the lower loading plate is in contact with the bottom surface of the moving frame, and after opening, the lower loading plate opens vertically downward.

7. The water area sludge treatment equipment according to claim 6, characterized in that The surface of the lower loading plate is provided with a plurality of drainage grooves.

8. The water area sludge treatment equipment according to claim 5 or 6, characterized in that, On the side of the lower loading plate away from the fixing hole, there is also a Z-shaped support plate. One end of the Z-shaped support plate is arranged at the splicing position below the two groups of lower loading plates, and the other end tilts upward. Below the tilted part, there is a cylinder. Inside the Z-shaped support plate, there is a through-set pin shaft, and both ends of the pin shaft are rotatably connected to the inner wall of the equipment body.

9. The water area sludge treatment equipment according to claim 6 or 7, characterized in that Inside the equipment body, there is also a drainage plate. The drainage plate includes an upper receiving groove and a lower receiving groove at the bottom. Both the upper receiving groove and the lower receiving groove are in a U shape. The upper receiving groove is arranged below the flexible filter cloth. The lower loading plate communicates with the lower receiving groove through the drainage groove.

10. The water area sludge treatment equipment according to claim 9, characterized in that, On the outer side of the equipment body, there is also a drain pipe. One end of the drain pipe is connected to the upper receiving groove and the lower receiving groove through a three-way valve, and the other end extends outward.

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