Sedimentation tank for polluted soil treatment system
By designing an inverted cone-shaped pool body and liftable mud bucket, combined with electric lifting components and elastic scrubbing belt, the problem of low mud and water separation during soil rinsing is solved, and efficient sediment separation and sewage recovery are achieved, which has improved the Pollutant removal effect of soil treatment system.
Patent Information
- Application Number
- CN202411299245.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2024-12-24
AI Technical Summary
In the existing soil leaching technology, the sludge extraction of inclined pipes leads to low separation of sludge and water, and secondary separation is required through a filter press, which has obvious shortcomings.
Design a sedimentation tank for contaminated soil treatment system, adopt an inverted cone-shaped tank body and a liftable mud bucket, combined with electric lifting components and elastic sludge pulling belt to achieve efficient sedimentation and separation of sludge and sand, through the filtering water cloth and The water leakage hole further improves separation completeness.
The mud-water separation is improved. Compared with the inclined pipe sludge extraction, the wastewater is removed, the separation efficiency and completeness are improved, and the need for secondary separation is reduced.
Smart Images
Figure CN119174934A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of soil pollution treatment, and in particular to a sedimentation tank used in a contaminated soil treatment system. Background Art
[0002] In recent years, the country has paid more and more attention to environmental protection, and has taken many measures to repair the polluted ecology, mainly including soil restoration, vegetation restoration, water resource restoration, air quality restoration, etc.
[0003] Soil leaching is one of the most important soil remediation technologies. It separates, isolates and transforms pollutants into harmless substances through high-energy contact between contaminated soil and leaching agent.
[0004] After elution is completed, the mud and sand mixed with part of the sewage are pumped out together through the inclined pipe extending to the bottom of the sedimentation tank in conjunction with the mud pump until there is less mud and sand at the bottom of the sedimentation tank. The pumped mud and water mixture is then separated by a filter press.
[0005] However, the inclined tube sludge extraction will inevitably bring out a lot of sewage, so the mud-water separation degree is not high, and a secondary separation is required through a filter press, which has obvious shortcomings. Summary of the invention
[0006] In order to improve the mud-water separation degree, the present application provides a sedimentation tank for a contaminated soil treatment system.
[0007] The present application provides a sedimentation tank for a contaminated soil treatment system using the following technical solutions: A sedimentation tank for a contaminated soil treatment system comprises a tank body with an opening at the top, wherein the inner bottom wall of the tank body is in an inverted cone shape and a mud bucket for loading mud and sand is placed at the lowest point, and a lifting component for lifting the mud bucket out of the tank body is mounted on the tank body.
[0008] By adopting the above technical solution, when the muddy wastewater enters the pool body, the mud and sand gradually settle in the mud bucket. When the worker observes that the mud bucket is full of mud and sand, the lifting assembly lifts the mud bucket out of the pool body to achieve mud and water separation. Since the mud bucket is full of mud and sand when it is lifted out of the pool body, although some wastewater is also entrained, the water content is relatively small. Compared with the inclined pipe mud extraction, the mud and water separation degree of this application is higher.
[0009] Optionally, the lifting assembly includes a supporting frame fixedly mounted on the top of the pool body, a lifting motor arranged on the supporting frame and electrically connected to the control system, a winding wheel is coaxially arranged on the output shaft of the lifting motor, a pulling line is wound on the winding wheel, a pulling rod is arranged on the mud bucket, and the pulling line is tied to the pulling rod.
[0010] By adopting the above technical solution, the control system starts the lifting motor, and the output shaft of the lifting motor drives the winding wheel to rotate. The winding wheel winds up the pulling wire, and the pulling force of the pulling wire on the pull rod pulls the mud bucket out of the pool body, thereby realizing mud and water separation.
[0011] Optionally, a plurality of liner buckets occupying the entire inner cavity are placed in the mud loading bucket, the liner buckets are densely covered with water leakage holes, a first water filter cloth is arranged on the inner wall of the liner bucket, a hook is arranged on the liner bucket, and a plurality of hanging rings for the hooks to be hung are arranged on the supporting frame.
[0012] By adopting the above technical solution, after the mud bucket is lifted out of the pool body, workers manually take out the inner liner buckets filled with mud and sand in the mud bucket and hang them on the hanging rings through hooks, and the wastewater in the mud and sand in the inner liner buckets leaks back into the pool body through the first filter cloth and the leakage hole, further improving the completeness of mud and water separation.
[0013] Optionally, a second water filter cloth in an inverted cone shape is arranged between the inner wall of the pool body and the inner wall of the mud bucket, and a mud shoveling assembly for shoveling mud on the second water filter cloth into each liner bucket is also arranged in the pool body.
[0014] By adopting the above technical solution, the mud-shoveling assembly can push the mud and sand attached to the second water filter cloth into the mud bucket, thereby improving the completeness of mud and sand separation.
[0015] Optionally, the mud-smoothing assembly includes an elastic smoothing belt slidably mounted on the inclined outer wall of the second water filter cloth and tightly attached thereto, and a plurality of pull ropes circumferentially tied to the elastic smoothing belt, the pull ropes slide out of the pool body and are tied with a load-bearing gear ring, the load-bearing gear ring is rotatably mounted outside the pool body, a drive motor electrically connected to the control system is arranged outside the pool body, and a drive gear meshing with the load-bearing gear ring is coaxially arranged on the output shaft of the drive motor.
[0016] By adopting the above technical solution, during the sedimentation process, the elastic pull belt is stretched and expanded to the maximum by each pull rope. When pulling the sediment, the control system starts the drive motor, and the output shaft of the drive motor drives the load-bearing gear ring to rotate through the drive gear, and the load-bearing gear ring realizes the release of the pull rope, and the elastic pull belt shrinks accordingly. During the shrinkage process, the elastic pull belt is close to the side wall of the second water filter cloth and exerts a squeezing force on it, repeating the process of the elastic pull belt being stretched and contracted, and the contraction process gradually becomes larger, so that the sediment attached to the upper surface of the second water filter cloth will be pushed into the mud bucket, thereby improving the completeness of mud and water separation.
[0017] Optionally, the position on the pool body for the pull rope to pass through is close to the connection between the second water filter cloth and the pool body.
[0018] By adopting the above technical solution, the possibility of the rope threading position being too low, resulting in the pool body being able to load too little wastewater, is reduced.
[0019] Optionally, the load-bearing toothed ring is close to the bottom of the pool body, and a reversing ring for the pull rope to pass through is arranged between the position for the pull rope to pass through on the pool body and the load-bearing toothed ring.
[0020] By adopting the above technical solution, the load-bearing gear ring is close to the bottom of the pool body, so as to facilitate assembly with the drive motor.
[0021] Optionally, there is a gap between the load-bearing gear ring and the circumferential outer wall of the pool body, a plurality of steel ball rollers are circumferentially arranged on the load-bearing gear ring, and a limiting groove for the balls of the steel ball rollers to roll is opened circumferentially on the outer wall of the pool body.
[0022] By adopting the above technical solution, the steel ball roller cooperates with the limiting groove to ensure the stable rotation of the load-bearing gear ring outside the pool body.
[0023] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the muddy wastewater enters the tank, the mud and sand gradually settle into the mud bucket. When the worker observes that the mud bucket is full of mud and sand, the lifting assembly lifts the mud bucket out of the tank to achieve mud and water separation. Since the mud bucket is full of mud and sand when it is lifted out of the tank, although some wastewater is also entrained, the water content is relatively low. Compared with the inclined tube mud pumping, the mud and water separation degree of this application is higher; 2. The control system starts the lifting motor, and the output shaft of the lifting motor drives the winding wheel to rotate. The winding wheel reels the lifting wire, and the pulling force of the lifting wire on the pull rod pulls the mud bucket out of the pool body, thereby achieving mud and water separation; 3. After the mud bucket is lifted out of the pool, workers manually take out the inner liner buckets filled with mud and sand in the mud bucket and hang them on the hanging ring through the hook, and the wastewater in the mud and sand in the inner liner bucket flows back into the pool through the first filter cloth and the leakage hole, further improving the completeness of mud and water separation; 4. During the sedimentation process, the elastic belt is stretched and expanded to the maximum by each pull rope. When pulling the sediment, the control system starts the drive motor, and the output shaft of the drive motor drives the load-bearing gear ring to rotate through the drive gear. The load-bearing gear ring releases the pull rope, and the elastic belt shrinks accordingly. During the shrinkage process, the elastic belt is close to the side wall of the second water filter cloth and exerts extrusion force on it. The process of stretching and shrinking the elastic belt is repeated, and the shrinkage process gradually increases. In this way, the sediment attached to the upper surface of the second water filter cloth will be pushed into the mud bucket, thereby improving the completeness of mud and water separation. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application.
[0025] Figure 2 It is a cross-sectional view showing the positional relationship between the mud bucket, the pull rod and the second water filter cloth in an embodiment of the present application.
[0026] Figure 3 It is an exploded view between the first water filter cloth, the lining bucket and the mud bucket in the embodiment of the present application.
[0027] Explanation of the reference numerals in the accompanying drawings: 1. pool body; 2. mud bucket; 3. lifting assembly; 31. load-bearing frame; 32. lifting motor; 33. winding wheel; 34. pulling line; 35. pulling rod; 6. lining bucket; 601. leakage hole; 7. first water filter cloth; 8. hook; 9. hanging ring; 10. second water filter cloth; 111. elastic pull belt; 112. pull rope; 113. load-bearing gear ring; 114. driving motor; 115. driving gear; 116. reversing ring; 12. steel ball roller; 13. limiting groove. DETAILED DESCRIPTION
[0028] The following is combined with Figure 1-3 This application is described in further detail.
[0029] The embodiment of the present application discloses a sedimentation tank for a contaminated soil treatment system.
[0030] Reference Figure 1 and Figure 2 The sedimentation tank used in the contaminated soil treatment system includes a tank body 1 which is hollow inside and open at the top. The inner bottom wall of the tank body 1 is in an inverted cone shape and a mud bucket 2 is placed at the lowest point. The mud bucket 2 is hollow hemispherical.
[0031] Reference Figure 1 , Figure 2 and Figure 3 A vertical pull rod 35 is welded at the center of the mud loading bucket 2. A plurality of liner buckets 6 occupying the entire inner cavity of the mud loading bucket 2 are placed in the mud loading bucket 2. The plurality of liner buckets 6 are distributed circumferentially around the pull rod 35 and are used to load mud and sand.
[0032] The inner liner bucket 6 is densely covered with water leakage holes 601 , and a first water filter cloth 7 is bonded to the inner wall of the inner liner bucket 6 . The silt in the sewage in the pool body 1 is settled in the inner liner bucket 6 under the action of gravity.
[0033] Reference Figure 1 and Figure 2 A lifting assembly 3 for lifting the mud bucket 2 out of the pool body 1 is mounted on the pool body 1. The lifting assembly 3 includes a supporting frame 31 fixedly mounted on the top of the pool body 1, a lifting motor 32 bolted to the supporting frame 31 and electrically connected to the control system, and the lifting motor 32 adopts a forward and reverse servo motor in the prior art.
[0034] The output shaft of the lifting motor 32 is coaxially arranged with a wire reel 33, on which a lifting wire 34 is wound, and the lifting wire 34 is tied to a pull rod 35. When the liner bucket 6 is filled with mud and sand, the control system starts the lifting motor 32, and the output shaft of the lifting motor 32 drives the wire reel 33 to rotate, and the wire reel 33 winds up the lifting wire 34, and the lifting wire 34 lifts the mud bucket 2 and the liner bucket 6 out of the pool body 1 through the pull rod 35.
[0035] Reference Figure 1 , Figure 2 and Figure 3 When the mud bucket 2 is lifted out of the pool body 1, there is still a certain amount of sewage in the mud and sand in the liner bucket 6. Therefore, a hook 8 is welded on each liner bucket 6, and a plurality of hanging rings 9 for the hooks 8 to be mounted are threadedly connected on the support frame 31.
[0036] The worker manually takes out the liner bucket 6 from the mud bucket 2 and mounts it on the support frame 31. The sewage in the liner bucket 6 passes through the first water filter cloth 7 and then leaks back into the pool body 1 through the leakage hole 601, thereby improving the mud-water separation degree.
[0037] Reference Figure 1 , Figure 2 and Figure 3 In the actual operation of the sedimentation tank, it was found that although the inner bottom wall of the tank body 1 was inclined, part of the silt still accumulated on the inclined inner bottom wall of the tank body 1, and did not automatically enter the sludge bucket 2 under the action of gravity.
[0038] To solve this problem, a second water filter cloth 10 in an inverted cone shape is bonded between the inner wall of the pool body 1 and the inner wall of the mud bucket 2. A mud shoveling assembly for shoveling the mud on the second water filter cloth 10 into each liner bucket 6 is also arranged in the pool body 1.
[0039] Reference Figure 1 and Figure 2 The mud-smoothing assembly includes an elastic smoothing belt 111 which is slidably mounted on the inclined outer wall of the second water filter cloth 10 and is tightly attached thereto. A plurality of pull ropes 112 are circumferentially tied to the elastic smoothing belt 111. Each pull rope 112 slides out of the pool body 1. The position where the pull rope 112 passes through the pool body 1 is close to the position where the second water filter cloth 10 is bonded to the inner wall of the pool body 1.
[0040] A driving motor 114 electrically connected to the control system is bolted to the outside of the cell body 1 . A driving gear 115 is coaxially arranged on the output shaft of the driving motor 114 . The driving gear 115 meshes with a load-bearing gear ring 113 rotatably sleeved on the outside of the cell body 1 .
[0041] The load-bearing toothed ring 113 is close to the bottom of the pool body 1 , and a plurality of reversing rings 116 are threadedly connected to the pool body 1 above the load-bearing toothed ring 113 . One reversing ring 116 corresponds to one pull rope 112 . One end of the pull rope 112 slides out of the pool body 1 , passes through the corresponding reversing ring 116 , and is tied to the load-bearing toothed ring 113 .
[0042] Reference Figure 1 and Figure 2 During the sedimentation process, the elastic belt 111 is stretched to the maximum by the pull ropes 112. When the sediment is pulled, the control system starts the drive motor 114, and the output shaft of the drive motor 114 drives the bearing gear ring 113 to rotate through the drive gear 115, and the bearing gear ring 113 pays off the pull rope 112.
[0043] The elastic belt 111 contracts accordingly. During the contraction process, the elastic belt 111 is tightly attached to the side wall of the second water filter cloth 10 and exerts a squeezing force thereon. The process of stretching and contraction of the elastic belt 111 is repeated, and the contraction process gradually becomes larger. In this way, the mud and sand attached to and accumulated on the surface of the second water filter cloth 10 will be pushed into the mud bucket 2, thereby improving the completeness of mud and water separation.
[0044] Reference Figure 1 and Figure 2 There is a gap between the load-bearing toothed ring 113 and the circumferential outer wall of the pool body 1. There are multiple steel ball rollers 12 circumferentially on the load-bearing toothed ring 113, and a limiting groove 13 for the balls of the steel ball rollers 12 to roll is opened circumferentially on the outer wall of the pool body 1.
[0045] The implementation principle of a sedimentation tank for a contaminated soil treatment system in the present application embodiment is as follows: The silt in the sewage in the tank body 1 is settled in the liner bucket 6 under the action of gravity. During the sediment settling process, the elastic pull belt 111 is stretched and expanded to the maximum by each pull rope 112.
[0046] When the mud and sand are pulled, the control system starts the driving motor 114, and the output shaft of the driving motor 114 drives the bearing gear ring 113 to rotate through the driving gear 115, and the bearing gear ring 113 releases the pull rope 112. The elastic pull belt 111 contracts accordingly. During the contraction process, the elastic pull belt 111 is close to the side wall of the second water filter cloth 10 and applies a squeezing force thereto, repeating the process of the elastic pull belt 111 being stretched and contracted, and the contraction process gradually increases, so that the mud and sand attached to and accumulated on the upper surface of the second water filter cloth 10 will be pushed into the mud bucket 2.
[0047] When the liner bucket 6 is fully loaded with mud and sand, the control system starts the lifting motor 32, the output shaft of the lifting motor 32 drives the winding wheel 33 to rotate, the winding wheel 33 winds up the pulling wire 34, and the pulling wire 34 lifts the mud bucket 2 and the liner bucket 6 out of the pool body 1 through the pull rod 35.
[0048] The worker manually takes out the liner bucket 6 from the mud bucket 2 and mounts it on the support frame 31. The sewage in the liner bucket 6 passes through the first water filter cloth 7 and then leaks back into the pool body 1 through the leakage hole 601. The remaining empty liner bucket 6 can be placed in the mud bucket 2 to be refilled with mud.
[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A sedimentation tank for a contaminated soil treatment system, comprising a tank body (1) with an opening at the top, characterized in that: The inner bottom wall of the pool body (1) is in an inverted cone shape and a mud bucket (2) for loading mud and sand is placed at the lowest point. A lifting component (3) for lifting the mud bucket (2) out of the pool body (1) is mounted on the pool body (1).
2. The sedimentation tank for the contaminated soil treatment system according to claim 1, characterized in that: The lifting assembly (3) comprises a support frame (31) fixedly mounted on the top of the tank body (1), a lifting motor (32) arranged on the support frame (31) and electrically connected to the control system, a winding wheel (33) is coaxially arranged on the output shaft of the lifting motor (32), a lifting wire (34) is wound on the winding wheel (33), a pulling rod (35) is arranged on the mud bucket (2), and the pulling wire (34) is tied to the pulling rod (35).
3. The sedimentation tank for the contaminated soil treatment system according to claim 2, characterized in that: A plurality of liner buckets (6) occupying the entire inner cavity of the mud loading bucket (2) are placed in the liner bucket (6), the liner buckets (6) are densely covered with water leakage holes (601), a first water filter cloth (7) is arranged on the inner side wall of the liner bucket (6), a hook (8) is arranged on the liner bucket (6), and a plurality of hanging rings (9) for hanging the hooks (8) are arranged on the support frame (31).
4. The sedimentation tank for the contaminated soil treatment system according to claim 3, characterized in that: A second water filter cloth (10) in the shape of an inverted cone is arranged between the inner wall of the pool body (1) and the inner wall of the mud bucket (2), and a mud-shoveling assembly for shoveling mud and sand on the second water filter cloth (10) into each liner bucket (6) is also arranged in the pool body (1).
5. The sedimentation tank for the contaminated soil treatment system according to claim 4, characterized in that: The mud-smoothing assembly comprises an elastic smoothing belt (111) slidably mounted on the inclined outer wall of the second water filter cloth (10) and in close contact therewith, and a plurality of drawstrings (112) circumferentially tied to the elastic smoothing belt (111); the drawstrings (112) slide out of the pool body (1) and are tied to a load-bearing gear ring (113); the load-bearing gear ring (113) is rotatably mounted outside the pool body (1); a driving motor (114) electrically connected to a control system is arranged outside the pool body (1); and a driving gear (115) meshing with the load-bearing gear ring (113) is coaxially arranged on the output shaft of the driving motor (114).
6. The sedimentation tank for the contaminated soil treatment system according to claim 5, characterized in that: The position on the pool body (1) through which the pull rope (112) passes is close to the connection between the second water filter cloth (10) and the pool body (1).
7. The sedimentation tank for the contaminated soil treatment system according to claim 5, characterized in that: The load-bearing toothed ring (113) is close to the bottom of the pool body (1), and a reversing ring (116) for the pull rope (112) to pass through is arranged between the position for the pull rope (112) to pass through on the pool body (1) and the load-bearing toothed ring (113).
8. The sedimentation tank for the contaminated soil treatment system according to claim 5, characterized in that: There is a gap between the load-bearing toothed ring (113) and the circumferential outer wall of the pool body (1); a plurality of steel ball rollers (12) are circumferentially arranged on the load-bearing toothed ring (113); and a limiting groove (13) for the balls of the steel ball rollers (12) to roll is opened circumferentially on the outer wall of the pool body (1).