A sludge flocculation concentration device

Abstract

The application relates to a sludge flocculation concentration device and relates to the technical field of sewage treatment, which comprises a rack, a concentration box, a centrifugal motor and a receiving tank, the rack is connected with a supporting pipe, the concentration box comprises a mesh shell, a closed shell and a centrifugal sealing strip, the mesh shell is rotationally sleeved on the supporting pipe, the closed shell is arranged on the outer surface of the mesh shell, the closed shell is used for completely closing or completely opening all mesh holes of the mesh shell, a sludge hole is formed in the middle of the mesh shell, the centrifugal sealing strip is arranged at the sludge hole and is elastically connected with the mesh shell, the centrifugal sealing strip centrifugally opens the sludge hole, the centrifugal motor is installed on the supporting pipe and is in transmission connection with the mesh shell, the receiving tank is connected to the rack, the receiving tank comprises a plurality of sludge tank wall plates and a plurality of clear liquid tank wall plates, the plurality of sludge tank wall plates can be spliced into sludge tanks, a sludge discharging hole is formed in each sludge tank wall plate, the plurality of clear liquid tank wall plates can be spliced into clear liquid tanks, and a clear liquid discharging hole is formed in each clear liquid tank wall plate. The application improves the separation effect of sludge and clear liquid.

Description

Technical Field

[0001] This application relates to the technical field of wastewater treatment, and in particular to a sludge flocculation and thickening device. Background Technology

[0002] Because of the high water content in sludge, the sludge volume is relatively large. In order to facilitate sludge treatment, utilization and transportation, sludge needs to be concentrated to reduce the water content and reduce the volume of sludge.

[0003] Chinese Patent Publication No. CN114180808A discloses a high-efficiency sludge thickening device for sewage treatment, which includes a flocculation tank and a sludge thickening sedimentation tank. The flocculation tank stirs and flocculates the sludge and water, and the sludge thickening sedimentation tank performs gravity separation of the flocculated sludge and water. Chinese Patent Publication No. CN209583955U discloses a centrifugal thickening sludge flocculation conditioning device, which includes a flocculation tank and a centrifuge tank. The flocculation tank stirs and flocculates the sludge and water, and the centrifuge tank performs centrifugal separation of the flocculated sludge and water.

[0004] In the above schemes, although both gravity separation and centrifugal separation can separate sludge and clear liquid, there is an insufficiently flocculated suspension in the flocculated mud water. The suspension is not easy to separate from the sludge or clear liquid. In gravity separation, the suspension is easily discharged with the clear liquid due to poor settling effect. In centrifugal separation, the suspension is easily discharged with the sludge due to filter screen interception. Thus, the separation effect of sludge and clear liquid is poor. Summary of the Invention

[0005] To improve the separation effect of sludge and clear liquid, this application provides a sludge flocculation and concentration device.

[0006] This application provides a sludge flocculation and thickening device, which adopts the following technical solution: A sludge flocculation and thickening device includes a frame, a thickening tank, a centrifugal motor, and a receiving box. A support pipe is connected to the frame. The thickening tank includes a mesh shell, a sealing shell, and a centrifugal sealing strip. The mesh shell is rotatably sleeved on the support pipe. The sealing shell is disposed on the outer surface of the mesh shell and is used to completely close or completely open all the mesh holes of the mesh shell. A sludge hole is opened in the middle of the mesh shell. At least one centrifugal sealing strip is provided and is disposed at the sludge hole. The centrifugal sealing strip is elastically connected to the mesh shell and is used to open the sludge hole by means of centrifugal force. The centrifugal motor is mounted on the support pipe, and the output shaft of the centrifugal motor is connected to the mesh shell drive. The receiving box includes multiple sludge tank wall panels and multiple clear liquid tank wall panels. The multiple sludge tank wall panels and multiple clear liquid tank wall panels are arranged around the thickening tank and are slidably connected to the frame. The multiple sludge tank wall panels can be spliced ​​to form a sludge tank. Each sludge tank wall panel has a sludge discharge hole. The multiple clear liquid tank wall panels can be spliced ​​to form a clear liquid tank. Each clear liquid tank wall panel has a liquid discharge hole.

[0007] Optionally, the mesh shell includes a top cover, a bottom cover, and a connecting slide rail. The top cover and the bottom cover are rotatably mounted on the support tube. A gap is left between the top cover and the bottom cover to form sludge holes. The connecting slide rail is connected between the top cover and the bottom cover. The centrifugal seal is slidably disposed in the connecting slide rail and is elastically connected to the connecting slide rail.

[0008] Optionally, a telescopic rod is connected between the centrifugal seal and the connecting slide rail, and a spring is provided on the telescopic rod. The spring is used to drive the telescopic rod to close the sludge hole with the centrifugal seal.

[0009] Optionally, the enclosed shell includes an upper shell and a lower shell, with multiple upper and lower shells arranged around the mesh shell. Multiple upper shells are hinged to the mesh cover and are used to close or open the mesh holes of the mesh cover. Multiple lower shells are hinged to the lower mesh cover and are used to close or open the mesh holes of the lower mesh cover. Each upper shell and each lower shell is hinged to an adjusting electric cylinder. The adjusting electric cylinder connected to the upper shell is hinged to the mesh cover, and the adjusting electric cylinder connected to the lower shell is hinged to the lower mesh cover.

[0010] Optionally, multiple sludge tank wall panels and multiple clear liquid tank wall panels are arranged alternately, with a sludge electric cylinder installed between each sludge tank wall panel and the frame, and a clear liquid electric cylinder installed between each clear liquid tank wall panel and the frame.

[0011] Optionally, the centrifugal seal is provided with a guide slope, which is used to discharge the sludge from the thickening tank in a downward direction.

[0012] Optionally, the concentration tank is equipped with a flocculation component, which includes a micro-swirl shell and a micro-swirl stirring head. The micro-swirl shell is sleeved on a support tube, and multiple sets of micro-swirl stirring heads are arranged along the axial direction of the support tube. Each set of micro-swirl stirring heads has multiple micro-swirl stirring heads arranged around the axial direction of the support tube. The micro-swirl stirring heads rotate through the micro-swirl shell, and each micro-swirl stirring head is connected to a micro-swirl motor. The micro-swirl motor is installed inside the micro-swirl shell, and the output shaft of the micro-swirl motor is connected to the micro-swirl stirring head.

[0013] Optionally, the support pipe is used to pass mud and water through it, and a mixing component is provided on the support pipe. The mixing component includes a stirring shaft, a stirring plate, a stirring motor and a dosing pipe. The stirring shaft is coaxially rotatably connected to the support pipe. The stirring plate is located inside the support pipe and multiple stirring plates are arranged around the axis of the stirring shaft. The stirring plates are connected to the stirring shaft. The stirring motor is installed on the outer wall of the support pipe. The output shaft of the stirring motor is connected to the side wall of the stirring shaft. A dosing chamber is opened inside the stirring shaft. The dosing pipe passes through the support pipe. One end of the dosing pipe inside the support pipe is rotated through the top of the stirring shaft. The dosing pipe is connected to the dosing chamber and is used to add flocculant into the dosing chamber. Each mixing plate has a dosing hole that extends into the dosing chamber. The direction in which the flocculant flows out of the dosing hole is opposite to the direction of the flow of mud and water in the support pipe. The support pipe has a feeding hole on its wall inside the concentration tank. A guide plate is installed inside the support pipe to guide the mud and water in the support pipe to flow out of the feeding hole.

[0014] Optionally, a sewage pump is installed inside the support pipe. The inlet end of the sewage pump is connected to a suction pipe that extends into the bottom of the concentration tank. The outlet end of the sewage pump is connected to a return pipe that passes through the guide plate, the stirring shaft, and the dosing pipe.

[0015] Optionally, a collection box is provided below the receiving box. The collection box is rotatably connected to the frame. A partition is provided inside the collection box, which divides the collection box into a sludge tank and a clear liquid tank. The sludge tank is used to face all the sewage discharge holes, and the clear liquid tank is used to face all the liquid discharge holes.

[0016] In summary, this application includes at least one of the following beneficial technical effects: 1. This application discloses a sludge flocculation and thickening device comprising a frame, a thickening tank, a centrifugal motor, and a receiving tank. The centrifugal motor drives the thickening tank to rotate, enabling the flocculated sludge-water mixture inside the thickening tank to undergo centrifugal motion. The receiving tank is first assembled into a sludge tank to receive sludge. After the sludge and clear liquid are centrifugally separated, the speed of the centrifugal motor is increased, allowing the centrifugal seal to centrifugally open the sludge holes. The sludge concentrated on the inner wall of the thickening tank can be discharged from the sludge holes first. Then, the speed of the centrifugal motor is restored, causing the centrifugal seal to close the sludge holes. The receiving tank is then assembled into a clear liquid tank. Driven by an adjusting electric cylinder, the upper and lower shells can swing, allowing the mesh of the screen shell to fully open. Under the action of centrifugal force, the clear liquid can be discharged through the mesh of the screen shell, making it difficult for the suspension to be discharged with the sludge or clear liquid, thereby improving the separation effect of sludge and clear liquid. 2. The sludge flocculation and thickening device of this application also includes a flocculation component, wherein the small vortex formed by the micro-swirl stirring head promotes the densification of flocs, enabling the chemically treated sludge water to flocculate rapidly and not easily destroy the flocs, thereby enabling the flocculation and thickening of sludge to be completed in one device. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of an embodiment of this application; Figure 2 This is a structural diagram of the concentration tank, flocculation component, and mixing component; Figure 3 yes Figure 2 Enlarged view of point A in the middle; Figure 4 yes Figure 2 Enlarged view at point B; Figure 5 yes Figure 2 A magnified view at point C; Figure 6 yes Figure 2 A magnified view of point D in the middle.

[0018] Explanation of reference numerals in the attached figures: 1. Frame; 11. Support pipe; 111. Feeding hole; 112. Guide plate; 12. Collection box; 121. Baffle plate; 2. Concentrating box; 21. Wire mesh shell; 211. Sludge hole; 212. Wire mesh cover; 213. Lower wire mesh cover; 214. Connecting slide rail; 22. Enclosed shell; 221. Upper shell; 222. Lower shell; 223. Adjusting electric cylinder; 23. Centrifugal seal; 231. Guide slope; 232. Telescopic rod; 233. Spring; 3. Centrifugal motor; 4. Receiving box; 4 1. Sludge tank wall panel; 411. Drain hole; 42. Clear liquid tank wall panel; 421. Drain hole; 43. Sludge electric cylinder; 44. Clear liquid electric cylinder; 5. Flocculation assembly; 51. Micro-rotating spherical shell; 52. Micro-rotating stirring head; 53. Micro-rotating motor; 6. Mixing assembly; 61. Stirring shaft; 611. Dosing chamber; 62. Stirring plate; 621. Dosing hole; 63. Stirring motor; 64. Dosing pipe; 65. Support; 66. Transmission box; 7. Sewage pump; 71. Suction pipe; 72. Return pipe. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0020] This application discloses a sludge flocculation and thickening device. (Refer to...) Figure 1 and Figure 2 A sludge flocculation and thickening device includes a frame 1, a thickening tank 2, a centrifugal motor 3, and a receiving tank 4.

[0021] Reference Figure 2 A vertically arranged support tube 11 is fixedly inserted on the frame 1.

[0022] Reference Figure 2 and Figure 3The concentration tank 2 includes a mesh shell 21, a closed shell 22, and a centrifugal seal 23.

[0023] Reference Figure 2 The mesh shell 21 is spherical and is rotatably mounted on the support tube 11. The sealing shell 22 is set on the outer surface of the mesh shell 21. The sealing shell 22 is used to completely close or completely open all the mesh holes of the mesh shell 21. When the sealing shell 22 completely closes all the mesh holes of the mesh shell 21, the thickening tank 2 is in the sludge separation state. When the sealing shell 22 completely opens all the mesh holes of the mesh shell 21, the thickening tank 2 is in the clear liquid separation state.

[0024] Reference Figure 3 The mesh shell 21 has a sludge hole 211 in the middle and at least one centrifugal seal 23 is provided. The centrifugal seal 23 is located at the sludge hole 211 and is elastically connected to the mesh shell 21. The centrifugal seal 23 can close the sludge hole 211 under the action of elasticity. The centrifugal seal 23 is used to open the sludge hole 211 by means of centrifugal force. That is, when the rotation speed of the concentration tank 2 reaches the preset speed, the centrifugal force on the centrifugal seal 23 reaches the preset value. At this time, the centrifugal seal 23 can overcome the elasticity and open the sludge hole 211.

[0025] Reference Figure 4 The centrifugal motor 3 is fixedly connected to the outer wall of the support tube 11, and the output shaft of the centrifugal motor 3 is connected to the mesh shell 21 for transmission. The centrifugal motor 3 can drive the mesh shell 21 to rotate around the support tube 11. In this embodiment, the centrifugal motor 3 and the mesh shell 21 are connected by a spur gear transmission group; the centrifugal motor 3 is preferably a DC motor so that the centrifugal motor 3 can have a large speed adjustment range.

[0026] Reference Figure 2 The receiving box 4 includes multiple sludge box wall panels 41 and multiple clear liquid box wall panels 42. The multiple sludge box wall panels 41 and multiple clear liquid box wall panels 42 are arranged around the thickening box 2. The multiple sludge box wall panels 41 and multiple clear liquid box wall panels 42 are slidably connected to the frame 1. The sliding direction of the sludge box wall panels 41 and the clear liquid box wall panels 42 is towards or away from the thickening box 2.

[0027] Multiple sludge tank wall panels 41 can be spliced ​​together to form a sludge tank, which is used to receive sludge. Each sludge tank wall panel 41 is provided with a drain hole 411 for discharging sludge. Multiple clear liquid tank wall panels 42 can be spliced ​​together to form a clear liquid tank, which is used to receive clear liquid. Each clear liquid tank wall panel 42 is provided with a drain hole 421 for discharging clear liquid. By using sludge tanks to receive sludge and clear liquid tanks to receive clear liquid, the clear liquid is less likely to be contaminated.

[0028] In use, the closed shell 22 first completely seals all the mesh holes of the mesh shell 21. The centrifugal motor 3 drives the mesh shell 21 to rotate. The mesh shell 21 separates the flocculated mud and water inside itself through centrifugal force. The denser sludge is thrown to the inner wall of the mesh shell 21 and the closed shell 22 and forms a solid ring layer. The less dense clear liquid approaches the support pipe 11 and forms a liquid ring layer. Thus, under the action of centrifugal force, the flocculated mud and water can quickly achieve solid-liquid separation.

[0029] During the solid-liquid separation process of the flocculated mud and water, all the sludge tank wall panels 41 are slid towards the support pipe 11 to be assembled into a sludge tank to receive sludge. After the solid-liquid separation of the flocculated mud and water is completed, the speed of the centrifugal motor 3 is increased to increase the centrifugal force of the mesh shell 21 until the centrifugal force on the centrifugal seal 23 reaches the preset value. The centrifugal force enables the centrifugal seal 23 to overcome the elasticity and open the sludge hole 211, so that the solid ring layer formed by the sludge can be centrifugally discharged from the sludge hole 211. The centrifugally discharged sludge can splash onto the sludge tank wall panel 41. Under the action of gravity, the sludge slides down to the drain hole 411 and is discharged from the sludge tank from the drain hole 411. This allows the sludge to be separated from the clear liquid under conditions where it is not easy to carry the suspension, thereby improving the sludge separation effect.

[0030] After the sludge is discharged, the speed of the centrifugal motor 3 is reduced, causing the centrifugal seal 23 to close the sludge hole 211. The sludge tank wall panel 41 and the clear liquid tank wall panel 42 are slid together, so that all the clear liquid tank wall panels 42 slide towards the support pipe 11 to be assembled into a clear liquid tank to receive the clear liquid. The sealing shell 22 is fully opened, and all the mesh holes of the mesh shell 21 are opened. Under the action of centrifugal force, the clear liquid can pass through the mesh holes of the mesh shell 21 and be discharged centrifugally. Under the obstruction of the mesh shell 21, the suspension is difficult to follow the clear liquid out of the concentration tank 2. The centrifugally discharged clear liquid splashes onto the clear liquid tank wall panel 42. Under the action of gravity, the clear liquid flows to the drain hole 421 and is discharged from the clear liquid tank from the drain hole 421. This allows the clear liquid to be separated from the suspension under the condition that it is not easy to carry the suspension, thereby improving the separation effect of the clear liquid.

[0031] Based on the above analysis, sludge can be centrifuged and discharged through sludge holes 211, and the sludge can be received by the sludge tank. Clear liquid can be centrifuged and discharged through the mesh of the mesh shell 21, and the clear liquid can be received by the clear liquid tank. This makes it difficult for the discharge of sludge and clear liquid to carry suspension, and the sludge and clear liquid can be received separately, making it difficult for suspension to mix with sludge or clear liquid, thereby improving the separation effect of sludge and clear liquid.

[0032] Specifically, refer to Figure 3 The mesh shell 21 includes a mesh cover 212, a lower mesh cover 213, and a connecting slide rail 214.

[0033] Reference Figure 2 and Figure 3Both the upper and lower mesh covers 212 and 213 are mesh structures. Both the upper and lower mesh covers 212 and 213 are rotatably mounted on the support tube 11. A gap is left between the upper and lower mesh covers 212 and 213 to form sludge holes 211. The connecting slide rail 214 is fixed between the upper and lower mesh covers 212 and 213. The centrifugal seal 23 is slidably set in the connecting slide rail 214 and is elastically connected to the connecting slide rail 214.

[0034] In this embodiment, the sludge hole 211 is annular, and four centrifugal seals 23 are provided. The four centrifugal seals 23 are arranged around the axis of the support tube 11, and the four centrifugal seals 23 can completely seal the sludge hole 211.

[0035] The upper screen 212 and the lower screen 213 are connected by a sliding rail 214 to form a whole, so that the upper screen 212 and the lower screen 213 can rotate synchronously, and a sludge hole 211 can be formed between the upper screen 212 and the lower screen 213 to facilitate the discharge of sludge. The mesh structure of the upper screen 212 and the lower screen 213 also facilitates the discharge of clear liquid. The sliding rail 214 provides a slide for the centrifugal seal 23, so that the centrifugal seal 23 can stably open or close the sludge hole 211 under the action of centrifugal force, thereby realizing the discharge of sludge and clear liquid.

[0036] Specifically, refer to Figure 3 A telescopic rod 232 is connected between the centrifugal seal 23 and the connecting slide rail 214. Multiple telescopic rods 232 are provided. The fixed end of the telescopic rod 232 is fixedly connected to the connecting slide rail 214, and the movable end of the telescopic rod 232 abuts against the centrifugal seal 23. Each telescopic rod 232 is provided with a spring 233. The spring 233 is located in the rodless cavity of the telescopic rod 232. The two ends of the spring 233 are fixedly connected to the movable end and the fixed end of the telescopic rod 232, respectively. The spring 233 is used to drive the telescopic rod 232 to make the centrifugal seal 23 seal the sludge hole 211.

[0037] The telescopic rod 232, together with the spring 233, enables the centrifugal seal 23 to achieve a stable elastic connection with the connecting slide rail 214, so that the centrifugal seal 23 can stably open or close the sludge hole 211 under the action of centrifugal force.

[0038] Specifically, refer to Figure 3 The enclosed shell 22 includes an upper shell 221 and a lower shell 222.

[0039] Reference Figures 2-4Multiple upper shells 221 and lower shells 222 are arranged around the mesh shell 21. Multiple upper shells 221 are hinged to the mesh cover 212 and are used to close or open the mesh holes of the mesh cover 212. Multiple lower shells 222 are hinged to the lower mesh cover 213 and are used to close or open the mesh holes of the lower mesh cover 213. Each upper shell 221 and each lower shell 222 is hinged to an adjusting electric cylinder 223. The adjusting electric cylinder 223 connected to the upper shell 221 is hinged to the mesh cover 212, and the adjusting electric cylinder 223 connected to the lower shell 222 is hinged to the lower mesh cover 213.

[0040] Reference Figure 3 In this embodiment, the upper shell 221 is a spherical shell shape adapted to the mesh cover 212, and the upper shell 221 can be attached to the mesh cover 212; the lower shell 222 is a spherical shell shape adapted to the lower mesh cover 213, and the lower shell 222 can be attached to the lower mesh cover 213.

[0041] The upper housing 221 can open or close the mesh cover 212 under the drive of the adjusting electric cylinder 223, and the lower housing 222 can open or close the lower mesh cover 213 under the drive of the adjusting electric cylinder 223, so that the opening and closing of the mesh of the mesh cover 212 and the lower mesh cover 213 is easy to control. With the assistance of the upper housing 221 and the lower housing 222, the mesh cover 21 can discharge sludge and clear liquid, and retain the suspension inside itself.

[0042] After the sludge and the clear liquid are separated, the regulating electric cylinder 223 is cyclically extended and retracted. Driven by the regulating electric cylinder 223, the upper shell 221 can strike the net cover 212, and the lower shell 222 can strike the lower net cover 213, so that both the net cover 212 and the lower net cover 213 can be subjected to impact vibration. This makes it easier for the suspension hanging on the net cover 212 and the lower net cover 213 to flow quickly to the bottom of the lower net cover 213, so that the suspension can be quickly concentrated at the bottom of the lower net cover 213.

[0043] Reference Figure 2 To facilitate the sliding of the sludge tank wall panel 41 and the clear liquid tank wall panel 42, multiple sludge tank wall panels 41 and multiple clear liquid tank wall panels 42 are arranged alternately. Each sludge tank wall panel 41 is provided with a sludge electric cylinder 43 between itself and the frame 1. The fixed end of the sludge electric cylinder 43 is fixed to the frame 1, and the movable end of the sludge electric cylinder 43 is fixed to the sludge tank wall panel 41. The extension and retraction direction of the sludge electric cylinder 43 is consistent with the sliding direction of the sludge tank wall panel 41. Each clear liquid tank wall panel 42 is provided with a clear liquid electric cylinder 44 between itself and the frame 1. The fixed end of the clear liquid electric cylinder 44 is fixed to the frame 1, and the movable end of the clear liquid electric cylinder 44 is fixed to the clear liquid tank wall panel 42. The extension and retraction direction of the clear liquid electric cylinder 44 is consistent with the sliding direction of the clear liquid tank wall panel 42.

[0044] The sludge tank wall panel 41 is slidable by the sludge electric cylinder 43 and the clear liquid tank wall panel 42 is slidable by the clear liquid electric cylinder 44, which makes the splicing of the sludge tank and the clear liquid tank convenient and quick, and also makes the conversion between the sludge tank and the clear liquid tank convenient and quick.

[0045] Reference Figure 2 and Figure 3 In order to control the direction of sludge discharge from the thickening tank 2, a guide slope 231 is provided on the centrifugal seal 23. The guide slope 231 is located on the side of the centrifugal seal 23 close to the support pipe 11. The guide slope 231 is used to discharge the sludge from the thickening tank 2 in a downward direction.

[0046] Under the guiding effect of the inclined surface 231, the sludge discharged from the centrifugal discharge hole 211 can splash obliquely downward onto the wall plate 41 of the sludge tank, so that the position of the sludge splashed on the wall plate 41 of the sludge tank is close to the discharge hole 411, thereby enabling the sludge to be discharged from the sludge tank quickly.

[0047] Reference Figure 2 and Figure 5 In order to improve the flocculation effect of the sludge water, a flocculation component 5 is provided in the concentration tank 2. The flocculation component 5 includes a micro-swirl spherical shell 51 and a micro-swirl stirring head 52.

[0048] The micro-swirl shell 51 is fixedly sleeved on the support tube 11, with the center of the micro-swirl shell 51 coinciding with the center of the mesh shell 21, forming a uniform flocculation space between the micro-swirl shell 51 and the mesh shell 21. Multiple sets of micro-swirl stirring heads 52 are arranged along the axis of the support tube 11, with each set containing multiple micro-swirl stirring heads 52 arranged around the axis of the support tube 11. The micro-swirl stirring heads 52 rotate and pass through the micro-swirl shell 51. Each micro-swirl stirring head 52 is connected to a micro-swirl motor 53, which is fixed inside the micro-swirl shell 51, and the output shaft of the micro-swirl motor 53 is fixedly connected to the micro-swirl stirring head 52.

[0049] After the sludge and water containing the mixed agents are added to the concentration tank 2, the micro-rotary motor 53 can drive the micro-rotary stirring head 52 to rotate. The micro-rotary stirring head 52 rotates slowly to form small vortices. Flocculation can be formed at the small vortices. Two adjacent flocs can collide with each other to promote the compaction of the flocs, thereby accelerating the flocculation speed of the sludge.

[0050] Reference Figure 2 and Figure 6 In order to facilitate the uniform mixing of mud and water and chemicals before entering the concentration tank 2, the support pipe 11 is used to pass mud and water through it. The support pipe 11 is equipped with a mixing component 6, which includes a stirring shaft 61, a stirring plate 62, a stirring motor 63, and a dosing pipe 64.

[0051] Reference Figure 6The stirring shaft 61 is coaxially rotatably connected inside the support tube 11. The stirring plate 62 is located inside the support tube 11, and multiple stirring plates 62 are arranged around the axis of the stirring shaft 61. The multiple stirring plates 62 are arranged in a divergent manner and are fixedly connected to the stirring shaft 61.

[0052] A stirring motor 63 is fixedly connected to the outer wall of the support tube 11. The output shaft of the stirring motor 63 rotatably passes through the support tube 11, and the output shaft of the stirring motor 63 is connected to the side wall of the stirring shaft 61. A dosing chamber 611 is opened inside the stirring shaft 61. A dosing pipe 64 is fixedly passed through the support tube 11. One end of the dosing pipe 64 located inside the support tube 11 rotatably passes through the top end of the stirring shaft 61. The dosing pipe 64 communicates with the dosing chamber 611 and is used to add flocculant into the dosing chamber 611.

[0053] In this embodiment, two brackets 65 are rotatably connected to the stirring shaft 61. The brackets 65 are fixed to the support tube 11, and the stirring shaft 61 is coaxially rotatably connected to the support tube 11 through the brackets 65. The output shaft of the stirring motor 63 is connected to the stirring shaft 61 through a bevel gear transmission assembly. A transmission box 66 is provided on the bevel gear transmission assembly and is fixed to the brackets 65. The transmission box 66 can ensure stable transmission of the bevel gear transmission assembly.

[0054] Each mixing plate 62 is provided with a dosing hole 621, which extends into the dosing chamber 611. The direction in which the flocculant flows out of the dosing hole 621 is opposite to the direction of the flow of mud and water in the support pipe 11, so as to enhance the mixing effect of flocculant and mud and water.

[0055] Reference Figure 2 and Figure 5 The support tube 11, located inside the concentration tank 2, has multiple feeding holes 111 on its wall. These feeding holes 111 are evenly arranged around the axis of the support tube 11 and are positioned near the top of the concentration tank 2. A guide plate 112, conical in shape, is fixed inside the support tube 11 and positioned near the feeding holes 111. The guide plate 112 guides the mud and water inside the support tube 11 to flow out through the feeding holes 111. In this embodiment, the feeding holes 111 are located between the top of the concentration tank 2 and the top of the micro-swirl spherical shell 51.

[0056] The muddy water can flow from the support pipe 11 into the concentration tank 2 through the feeding hole 111, so that the support pipe 11 not only serves to support the concentration tank 2, but also to add muddy water. During the process of muddy water flowing into the concentration tank 2, the stirring motor 63 can drive the stirring shaft 61 to rotate through the bevel gear transmission group, so that the stirring plate 62 can stir the muddy water. The dosing pipe 64 can pass flocculant into the dosing chamber 611. The flocculant in the dosing chamber 611 can flow back to the muddy water from the dosing hole 621. During the rotation of the stirring plate 62, the flocculant can be added evenly to the muddy water, and the stirring plate 62 can stir the muddy water with added flocculant, so that the flocculant is easily mixed evenly in the muddy water.

[0057] It should be noted that a level gauge, such as an ultrasonic level gauge, can be installed on the wall of the support pipe 11 inside the concentration tank 2. By measuring and providing feedback through the ultrasonic level gauge, the addition of mud and water to the support pipe 11 will be stopped when the level of the mud and water in the concentration tank 2 reaches the preset height, so as to control the level of the mud and water in the concentration tank 2.

[0058] Reference Figure 2 and Figure 6 In order to allow the residual suspension to be re-flocculated, a sewage pump 7 is fixed inside the support pipe 11. The inlet end of the sewage pump 7 is connected to multiple suction pipes 71 through a pipeline. The suction pipes 71 are inserted into the concentration tank 2, and the position of the suction pipes 71 in the concentration tank 2 is located at the bottom of the concentration tank 2. The outlet end of the sewage pump 7 is connected to a return pipe 72, which is installed on the guide plate 112, the stirring shaft 61, and the dosing pipe 64. The return pipe 72 is fixed to the guide plate 112 and the dosing pipe 64, and is rotatably connected to the stirring shaft 61.

[0059] After the sludge and clear liquid are separated, the sewage pump 7 can draw the suspension concentrated at the bottom of the mesh shell 21 into the return pipe 72. The suspension can flow along the return pipe 72 to the top of the stirring shaft 61, so that the suspension can be re-doped for flocculation.

[0060] Reference Figure 2 To facilitate the separate collection of sludge and clear liquid, a collection box 12 is provided below the receiving box 4. The collection box 12 is rotatably connected to the frame 1. A partition 121 is fixed inside the collection box 12, which separates the collection box 12 into a sludge tank and a clear liquid tank. The sludge tank is used to be directly opposite all the drain holes 411, and the clear liquid tank is used to be directly opposite all the drain holes 421.

[0061] It should be noted that the rotation of the collection box 12 can be driven by a motor or rotary cylinder, or it can be driven manually. No specific limitation is made in this application.

[0062] By rotating the collection box 12, the sludge tank can receive sludge, and the clear liquid tank can receive clear liquid, so that the sludge and clear liquid can be collected separately.

[0063] The implementation principle of the sludge flocculation and thickening device in this application embodiment is as follows: During use, the sludge electric cylinder 43 drives the sludge box wall plate 41 to slide, so as to splice the sludge box. The centrifugal motor 3 drives the thickening box 2 to rotate, so that the sludge is concentrated and thrown towards the inner wall of the mesh shell 21 and the closed shell 22, and the clear liquid is concentrated in the area near the support pipe 11. After the centrifugal motor 3 further increases the speed, the centrifugal seal 23 can open the sludge hole 211 under the action of centrifugal force, so that the sludge is separated first. After the centrifugal motor 3 resumes the speed, the centrifugal seal 23... The sludge hole 211 can be resealed, and then the sludge electric cylinder 43 drives the sludge tank wall plate 41 to slide in the opposite direction, and the clear liquid electric cylinder 44 drives the clear liquid tank wall plate 42 to slide, so as to splice out the clear liquid tank. The adjusting electric cylinder 223 drives the upper shell 221 or the lower shell 222 to swing, so that the mesh of the screen 21 is fully opened. Under the action of centrifugal force, the clear liquid can pass through the mesh of the screen 21 and be discharged from the concentration tank 2. The suspension will remain in the screen 21, so that the suspension is not easy to be discharged with the sludge or clear liquid, thus improving the separation effect of sludge and clear liquid.

[0064] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sludge flocculation and thickening device, characterized in that: The machine includes a frame (1), a thickening tank (2), a centrifugal motor (3), and a receiving box (4). A support pipe (11) is connected to the frame (1). The thickening tank (2) includes a mesh shell (21), a sealing shell (22), and a centrifugal seal (23). The mesh shell (21) is rotatably sleeved on the support pipe (11). The sealing shell (22) is set on the outer surface of the mesh shell (21). The sealing shell (22) is used to completely close or completely open all the mesh holes of the mesh shell (21). A sludge hole (211) is opened in the middle of the mesh shell (21). At least one centrifugal seal (23) is provided. The centrifugal seal (23) is set at the sludge hole (211). The centrifugal seal (23) is elastically connected to the mesh shell (21). The centrifugal seal (23) is used to open the sludge hole (211) by means of centrifugal force. The centrifugal motor (3) is mounted on the support pipe (11), and the output shaft of the centrifugal motor (3) is connected to the mesh shell (21) for transmission. The receiving box (4) includes multiple sludge box wall panels (41) and multiple clear liquid box wall panels (42). The multiple sludge box wall panels (41) and multiple clear liquid box wall panels (42) are arranged around the thickening box (2) and are slidably connected to the frame (1). The multiple sludge box wall panels (41) can be spliced ​​into a sludge box. Each sludge box wall panel (41) is provided with a drain hole (411). The multiple clear liquid box wall panels (42) can be spliced ​​into a clear liquid box. Each clear liquid box wall panel (42) is provided with a drain hole (421).

2. The sludge flocculation and thickening device according to claim 1, characterized in that: The mesh shell (21) includes a mesh cover (212), a lower mesh cover (213), and a connecting slide rail (214). The mesh cover (212) and the lower mesh cover (213) are rotatably sleeved on the support tube (11). A gap is left between the mesh cover (212) and the lower mesh cover (213) for forming sludge holes (211). The connecting slide rail (214) is connected between the mesh cover (212) and the lower mesh cover (213). The centrifugal seal (23) is slidably disposed in the connecting slide rail (214) and is elastically connected to the connecting slide rail (214).

3. The sludge flocculation and thickening device according to claim 2, characterized in that: A telescopic rod (232) is connected between the centrifugal seal (23) and the connecting slide rail (214). A spring (233) is provided on the telescopic rod (232). The spring (233) is used to drive the telescopic rod (232) to make the centrifugal seal (23) seal the sludge hole (211).

4. The sludge flocculation and thickening device according to claim 2, characterized in that: The enclosed shell (22) includes an upper shell (221) and a lower shell (222). Multiple upper shells (221) and lower shells (222) are arranged around the mesh shell (21). Multiple upper shells (221) are hinged to the mesh cover (212) and are used to close or open the mesh holes of the mesh cover (212). Multiple lower shells (222) are hinged to the lower mesh cover (213) and are used to close or open the mesh holes of the lower mesh cover (213). Each upper shell (221) and each lower shell (222) is hinged to an adjusting electric cylinder (223). The adjusting electric cylinder (223) connected to the upper shell (221) is hinged to the mesh cover (212), and the adjusting electric cylinder (223) connected to the lower shell (222) is hinged to the lower mesh cover (213).

5. The sludge flocculation and thickening device according to claim 1, characterized in that: Multiple sludge tank wall panels (41) and multiple clear liquid tank wall panels (42) are arranged alternately. Each sludge tank wall panel (41) is provided with a sludge electric cylinder (43) between it and the frame (1), and each clear liquid tank wall panel (42) is provided with a clear liquid electric cylinder (44) between it and the frame (1).

6. The sludge flocculation and thickening device according to claim 1, characterized in that: The centrifugal seal (23) is provided with a guide slope (231), which is used to discharge the sludge from the thickening tank (2) in a downward direction.

7. The sludge flocculation and thickening device according to claim 1, characterized in that: The concentration tank (2) is equipped with a flocculation component (5). The flocculation component (5) includes a micro-swirl shell (51) and a micro-swirl stirring head (52). The micro-swirl shell (51) is sleeved on the support tube (11). Multiple sets of micro-swirl stirring heads (52) are arranged along the axial direction of the support tube (11). Each set of micro-swirl stirring heads (52) has multiple sets arranged around the axial direction of the support tube (11). The micro-swirl stirring heads (52) rotate through the micro-swirl shell (51). Each micro-swirl stirring head (52) is connected to a micro-swirl motor (53). The micro-swirl motor (53) is installed inside the micro-swirl shell (51). The output shaft of the micro-swirl motor (53) is connected to the micro-swirl stirring head (52).

8. The sludge flocculation and thickening device according to claim 1, characterized in that: The support pipe (11) is used to pass mud and water through it. A mixing component (6) is provided on the support pipe (11). The mixing component (6) includes a stirring shaft (61), a stirring plate (62), a stirring motor (63), and a dosing pipe (64). The stirring shaft (61) is coaxially rotatably connected to the support pipe (11). The stirring plate (62) is located inside the support pipe (11), and multiple stirring plates (62) are arranged around the axis of the stirring shaft (61). The stirring plate (62) is connected to the stirring shaft (61). The stirring motor (63) is installed on the outer wall of the support tube (11). The output shaft of the stirring motor (63) is connected to the side wall of the stirring shaft (61). The stirring shaft (61) has a dosing chamber (611) inside. The dosing tube (64) passes through the support tube (11). One end of the dosing tube (64) inside the support tube (11) is rotated through the top of the stirring shaft (61). The dosing tube (64) is connected to the dosing chamber (611) and is used to add flocculant into the dosing chamber (611). Each stirring plate (62) is provided with a dosing hole (621), which extends into the dosing chamber (611). The direction of the flocculant flowing out from the dosing hole (621) is opposite to the direction of the mud and water flow in the support pipe (11). The support pipe (11) is located in the thickening tank (2) and has a feeding hole (111) on its pipe wall. A guide plate (112) is provided in the support pipe (11) and is used to guide the mud and water in the support pipe (11) to flow out from the feeding hole (111).

9. A sludge flocculation and thickening device according to claim 8, characterized in that: The support pipe (11) is equipped with a sewage pump (7). The inlet end of the sewage pump (7) is connected to a suction pipe (71). The suction pipe (71) is inserted into the bottom of the concentration tank (2). The outlet end of the sewage pump (7) is connected to a return pipe (72). The return pipe (72) is installed on the guide plate (112), the stirring shaft (61), and the dosing pipe (64).

10. A sludge flocculation and thickening device according to claim 1, characterized in that: Below the receiving box (4) is a collection box (12), which is rotatably connected to the frame (1). Inside the collection box (12) is a partition (121), which separates the collection box (12) into a sludge tank and a clear liquid tank. The sludge tank is used to be directly opposite all the drain holes (411), and the clear liquid tank is used to be directly opposite all the drain holes (421).

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