Multi-stage solid-liquid separation system for industrial sewage treatment
By designing a multi-stage solid-liquid separation system and using electronic control and pneumatic devices to achieve multi-stage extrusion dehydration and automatic cleaning of sludge, the problems of poor continuity, low efficiency and time-consuming cleaning of existing equipment are solved, and efficient and automatic sludge treatment is achieved.
Patent Information
- Application Number
- CN202422287630.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-09-19
AI Technical Summary
Existing industrial wastewater treatment equipment has poor dehydration continuity, low dehydration efficiency, poor dehydration effect, and is time-consuming and labor-intensive to clean, resulting in low equipment practicality.
A multi-stage solid-liquid separation system was designed, including a support base, a dewatering cylinder, a rotating circular plate and a holding box. Electric-controlled telescopic cylinders and pneumatic telescopic cylinders were used to achieve multi-stage extrusion dewatering, automatic discharge and cleaning of sludge. The processes were independent and did not affect each other.
It improves the continuity and efficiency of sludge dewatering, realizes automated sludge discharge and cleaning, and enhances the practicality of the equipment.
Smart Images
Figure CN223397607U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of industrial sewage treatment, in particular to a multi-stage solid-liquid separation system for industrial sewage treatment. Background Art
[0002] Industrial wastewater refers to wastewater and waste liquid generated in the industrial production process, which contains industrial production materials, intermediate products, by-products and pollutants generated in the production process that are lost with water. Industrial wastewater is of various types and complex in composition. Sludge will be produced during sewage treatment. The higher the degree of sewage treatment, the more sludge residue will be generated and need to be treated. The sludge contains a lot of water, so sludge dewatering equipment is needed to dehydrate the sludge.
[0003] The existing sludge dewatering equipment for industrial wastewater treatment has gradually exposed its shortcomings during use, mainly in the following aspects:
[0004] First, the dehydration continuity is poor, resulting in low sludge dehydration efficiency. Specifically, when dehydrating sludge, the sludge to be dehydrated needs to be added into the equipment, and then the sludge in the equipment is squeezed and dehydrated through the extrusion component. Finally, the dehydrated sludge in the equipment is discharged to the outside for collection and the sludge to be dehydrated is added again to repeat the above dehydration process for dehydration. The equipment needs to stop dehydration during the process of adding and discharging sludge. Therefore, the dehydration continuity of the equipment is poor, resulting in low sludge dehydration efficiency.
[0005] Second, the dehydration function is single, resulting in poor dehydration effect on sludge. Specifically, the existing equipment does not have the function of multi-stage dehydration of sludge. During the dehydration process of the equipment, the extrusion component in the equipment only performs one extrusion dehydration operation on the sludge. However, there is a lot of sludge in the equipment, and some sewage in the sludge cannot be effectively squeezed out, resulting in poor dehydration effect on the sludge.
[0006] Third, the dehydrated sludge needs to be manually cleaned, and the cleaning process is time-consuming and labor-intensive, resulting in low practicality of the equipment. Specifically, after the extrusion component in the equipment completes the extrusion and dehydration of the sludge, part of the sludge will adhere to the extrusion component during the separation process of the extrusion component and the sludge. When the equipment discharges the dehydrated sludge to the outside, the sludge adhered to the extrusion component cannot be discharged together. When a large amount of sludge accumulates on the extrusion component, it is bound to affect the normal operation of the equipment. Therefore, the staff needs to use cleaning tools to clean the sludge adhered to the extrusion component. The cleaning process is time-consuming and labor-intensive, which reduces the practicality of the equipment.
[0007] In summary, the existing technology has obvious inconveniences and defects in actual use, so it is necessary to improve it. Utility Model Content
[0008] In view of the defects in the prior art, the technical problem to be solved by the present invention is to provide a multi-stage solid-liquid separation system for industrial wastewater treatment. The sludge adding process, sludge discharging process and sludge dewatering process of the equipment are independent of each other and do not affect each other. During the sludge dewatering process, the sludge adding and sludge discharging operations can be carried out simultaneously, so the continuous dehydration of the sludge is high, and the dehydration efficiency of the sludge is improved;
[0009] The equipment also has the function of multi-stage dehydration of sludge, which improves the dehydration effect of sludge;
[0010] The equipment can also automatically discharge the dehydrated sludge, and during the discharge process it can also automatically clean the sludge adhering to the equipment. The sludge discharge and cleaning process is simple, which improves the practicality of the equipment.
[0011] In order to solve the above problems, the present invention provides the following technical solutions:
[0012] A multi-stage solid-liquid separation system for industrial wastewater treatment includes a support base, a dehydration cylinder with sealed ends fixed horizontally above the support base, two rotating circular plates rotatably connected to the inner wall of the dehydration cylinder are coaxially arranged in the dehydration cylinder, four horizontally arranged holding boxes are evenly distributed along the circumference between the two rotating circular plates, the opposite side walls of the holding boxes are fixedly connected to the two rotating circular plates respectively, one end of the holding box is opened and frictionally abuts against the inner wall of the dehydration cylinder, a sliding arc plate is provided on the inner wall of the holding box for sliding sealing, the upper outer wall and the right outer wall of the dehydration cylinder are sealed The outer walls are respectively provided with a feed trough and a discharge trough connected to their inner cavity; the left outer wall and the lower outer wall of the dehydration cylinder are respectively provided with a number of drainage holes connected to their inner cavity; a collecting water tank with one end being open is provided on the side of the dehydration cylinder; the open end of the collecting water tank is fixedly connected to the outer wall of the dehydration cylinder; the drainage holes are all located in the collecting water tank; a drainage pipe connected to its inner cavity is fixedly provided at the bottom of the collecting water tank; a loading assembly and a discharge assembly are respectively provided at the positions of the feed trough and the discharge trough on the outer wall of the dehydration cylinder; a driving assembly for controlling the sliding of the sliding arc plate is provided in the dehydration cylinder.
[0013] As an optimized solution, an avoidance groove is provided through the end of the containing box close to the driving assembly. The driving assembly includes a horizontally fixed support bar, and the left and right sides and bottom of the support bar are provided with horizontally arranged arc-shaped top plates. The left and right ends and bottom of the support bar are respectively provided with a number of fixedly arranged first-level electric telescopic cylinders, discharge electric telescopic cylinders and second-level electric telescopic cylinders. The telescopic ends of the first-level electric telescopic cylinder, discharge electric telescopic cylinder and second-level electric telescopic cylinder are fixedly connected to the three arc-shaped top plates.
[0014] As an optimized solution, the feeding assembly includes a feed hopper fixedly connected to the upper outer wall of the dehydration cylinder, the lower port of the feed hopper is connected to the feed trough, a vertically arranged reset plate is provided in the feed hopper, and two vertically arranged reset electric-controlled telescopic cylinders are provided above the upper port of the feed hopper, the reset electric-controlled telescopic cylinder is fixedly connected to the feed hopper through a connecting bracket, and the telescopic end of the reset electric-controlled telescopic cylinder is fixedly connected to the reset plate.
[0015] As an optimized solution, the discharge assembly includes a material guide plate fixedly connected to the right outer wall of the dehydration cylinder, the material guide plate is located below the discharge trough and is inclined downward, the opposite side walls of the material guide plate are fixed with vertically arranged material baffles, one end of the material baffle is arc-shaped and in contact with the right outer wall of the dehydration cylinder, a horizontally movable support plate is provided on the side of the material guide plate, and a movable plate is provided at the end of the support plate for horizontal reciprocating sliding, the support plate is perpendicular to the sliding direction of the movable plate, and a number of vertically arranged cleaning plates are horizontally arranged in parallel at the end of the movable plate, and the cleaning plate is an arc-shaped structure at the end close to the dehydration cylinder.
[0016] As an optimized solution, the dehydration cylinder is fixedly connected to the support base through two positioning plates, and the opposite ends of the two rotating circular plates are coaxially fixed with drive tubes. The opposite ends of the two drive tubes respectively extend through the dehydration cylinder to the outside and are rotatably connected to the dehydration cylinder. A drive wheel is rotatably provided at the end of one of the positioning plates, and a driven wheel is fixedly mounted on the outer wall of one of the drive tubes, and the drive wheel is connected to the driven wheel through a transmission belt.
[0017] As an optimized solution, a drive motor is fixedly provided at the end of one of the positioning plates, and the output end of the drive motor passes through the positioning plate and is fixedly connected to the drive wheel.
[0018] As an optimized solution, the opposite ends of the dehydration cylinder are fixed with fixed U-shaped plates, and the opposite side walls of the support bars are fixed with connecting columns coaxially arranged with the driving tube. The opposite ends of the two connecting columns pass through the rotating circular plate and the driving tube in sequence and are fixedly connected to the two fixed U-shaped plates respectively. The connecting columns are rotatably connected to the rotating circular plate.
[0019] As an optimized solution, the ends of the baffle plates are fixedly connected to horizontally arranged fixed brackets, and the fixed brackets are fixedly provided with horizontally arranged pneumatic telescopic cylinders, and the telescopic ends of the two pneumatic telescopic cylinders are fixedly connected to the support plate.
[0020] As an optimized solution, two sliding plates are fixed to the end of the movable plate, one of the ends of the sliding plates is slidably connected to the support plate, and a horizontally arranged reciprocating telescopic cylinder is fixed to the end of the support plate, and the telescopic end of the reciprocating telescopic cylinder is fixedly connected to one of the sliding plates.
[0021] Compared with the prior art, the beneficial effects of the present invention are:
[0022] 1. When dewatering the sludge, the reset electric telescopic cylinder drives the reset plate downward. When the reset plate drops into the holding box and contacts the sliding arc plate, it drives the sliding arc plate to slide until the sliding arc plate is reset. The sludge to be dehydrated is added to the holding box above through the feed hopper. During the sludge adding process, the first-level electric telescopic cylinder, the second-level electric telescopic cylinder and the discharge electric telescopic cylinder respectively drive the three arc-shaped top plates to move. The arc-shaped top plates pass through the avoidance groove and contact the sliding arc plate and drive the sliding arc plate to move. The sliding arc plates in the left and lower holding boxes can squeeze and dehydrate the sludge in the holding box. The sewage squeezed out of the sludge enters the collection water tank through the drainage hole and is discharged by the drainage pipe. The sliding arc plate in the right holding box can complete the dehydration. The final sludge is pushed to the outside of the dewatering cylinder. After all processes are completed, the reset electric telescopic cylinder drives the reset plate to move upward into the feed hopper. The first-level electric telescopic cylinder, the second-level electric telescopic cylinder and the discharge electric telescopic cylinder respectively drive the three arc-shaped top plates to reset. The three arc-shaped top plates all avoid the holding box. The driving motor drives the driving wheel, the transmission belt and the driven wheel to rotate, and then drives the driving pipe, the rotating circular plate and the four holding boxes to rotate. After the rotating circular plate rotates 90°, the above processing steps are repeated for the sludge in the four holding boxes. The sludge adding process, the sludge discharging process and the sludge dewatering process of the equipment are independent of each other and do not affect each other. The sludge adding and discharging operations can be carried out simultaneously during the sludge dewatering process. Therefore, the continuous dehydration of the sludge is high, which improves the sludge dewatering efficiency.
[0023] 2. The telescopic ends of the first-stage electric telescopic cylinder, the second-stage electric telescopic cylinder, and the discharge electric telescopic cylinder gradually increase in telescopic range. Therefore, the extrusion force of the sliding arc plate in the lower holding box on the sludge is greater than the extrusion force of the sliding arc plate in the left holding box on the sludge, realizing the multi-stage dehydration function of the sludge and improving the dehydration effect of the sludge;
[0024] 3. The sludge discharged through the discharge chute falls into the collection container under the guidance of the guide plate. The pneumatic telescopic cylinder drives the support plate to move horizontally until the arc-shaped end of the cleaning plate passes through the discharge chute and enters the holding box and contacts the sliding arc plate. The reciprocating telescopic cylinder drives the sliding plate and the movable plate to move back and forth horizontally, thereby driving several cleaning plates to move back and forth horizontally. The cleaning plate can clean the sludge adhering to the sliding arc plate, realizing the automatic discharge of dehydrated sludge and the automatic cleaning of the sludge adhering to the sliding arc plate during the discharge process. The sludge discharge and cleaning process are simple, which improves the practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.
[0026] Figure 1 It is a structural diagram of the utility model;
[0027] Figure 2 This is a schematic diagram of the structure of the drive assembly of the utility model;
[0028] Figure 3 This is a schematic diagram of the structure inside the dehydration cylinder of the utility model;
[0029] Figure 4 This is a schematic diagram of the structure of the discharge assembly of the utility model;
[0030] Figure 5 This is a structural diagram of one end of the dehydration cylinder of the utility model;
[0031] Figure 6 It is a schematic structural diagram of the utility model as a whole.
[0032] In the figure: 1-support base; 2-drain pipe; 3-collecting water tank; 4-drain hole; 5-dehydration cylinder; 6-avoidance groove; 7-loading assembly; 8-feeding trough; 9-sliding arc plate; 10-accommodation box; 11-rotating circular plate; 12-discharge trough; 13-discharge assembly; 14-drive assembly; 15-positioning plate; 16-secondary electric telescopic cylinder; 17-arc top plate; 18-first level electric telescopic cylinder; 19-support bar; 20-discharge electric telescopic cylinder ;21-connecting column;22-feed hopper;23-connecting bracket;24-reset electric telescopic cylinder;25-reset plate;26-drive tube;27-driven wheel;28-fixed U-shaped plate;29-transmission belt;30-drive motor;31-drive wheel;32-material baffle plate;33-material guide plate;34-cleaning plate;35-moving plate;36-sliding plate;37-reciprocating telescopic cylinder;38-support plate;39-pneumatic telescopic cylinder;40-fixed bracket. DETAILED DESCRIPTION
[0033] The following embodiments of the technical solution of the present invention are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.
[0034] like Figures 1 to 6As shown, a multi-stage solid-liquid separation system for industrial wastewater treatment includes a support base 1, a dehydration cylinder 5 with sealed ends is fixedly provided horizontally above the support base 1, two rotating circular plates 11 are coaxially provided in the dehydration cylinder 5 and are rotatably connected to the inner wall thereof, four horizontally arranged receiving boxes 10 are evenly distributed along the circumference between the two rotating circular plates 11, and the opposite side walls of the receiving boxes 10 are fixedly connected to the two rotating circular plates 11, one end of the receiving box 10 is opened and frictionally abuts against the inner wall of the dehydration cylinder 5, a sliding arc plate 9 is provided on the inner wall of the receiving box 10 for sliding sealing, and the upper outer wall and the right outer wall of the dehydration cylinder 5 are sealed. The walls are respectively provided with a feed trough 8 and a discharge trough 12 connected to their inner cavity, the left outer wall and the lower outer wall of the dehydration cylinder 5 are provided with a plurality of drainage holes 4 connected to their inner cavity, and a collecting water tank 3 with one end being opened is provided on the side of the dehydration cylinder 5. The open end of the collecting water tank 3 is fixedly connected to the outer wall of the dehydration cylinder 5, and the drainage holes 4 are all located in the collecting water tank 3. A drainage pipe 2 connected to its inner cavity is fixedly provided at the bottom of the collecting water tank 3. The outer wall of the dehydration cylinder 5 is provided with a loading assembly 7 and a discharge assembly 13 at the position of the feed trough 8 and the discharge trough 12, respectively. A driving assembly 14 for controlling the sliding of the sliding arc plate 9 is provided in the dehydration cylinder 5;
[0035] When the rotating circular plate 11 is stationary, the sludge to be dehydrated is added to the upper holding box 10 through the feeding assembly 7, and the sliding arc plates 9 in the left, right and lower holding boxes 10 can be driven to slide at the same time by the driving assembly 14. The sliding arc plates 9 in the left and lower holding boxes 10 respectively perform primary extrusion dehydration and secondary extrusion dehydration on the sludge, and the sliding arc plate 9 in the right holding box 10 can push out the sludge after the secondary dehydration. The rotating circular plate 11 drives the four holding boxes 10 to rotate synchronously, and then performs different treatment processes on the sludge in the four holding boxes 10. The sludge adding process, sludge discharging process and sludge dewatering process of the equipment are independent of each other and do not affect each other. The operations of adding sludge and discharging sludge can be performed synchronously during the sludge dehydration process, so the continuous dehydration of the sludge is high, thereby improving the sludge dehydration efficiency.
[0036] Under the control of the drive assembly 14, the sliding amounts of the sliding curved plates 9 in the left, lower and right holding boxes 10 gradually increase. Therefore, the squeezing force of the sliding curved plates 9 in the lower holding box 10 on the sludge is greater than the squeezing force of the sliding curved plates 9 in the left holding box 10 on the sludge, thereby realizing the multi-stage dehydration function of the sludge and improving the dehydration effect of the sludge.
[0037] The sliding arc plate 9 located in the right holding box 10 can automatically push out the sludge after the secondary dehydration, and the sludge adhering to the sliding arc plate 9 can be cleaned through the discharge component 13, thereby realizing the function of automatically discharging the dehydrated sludge and automatically cleaning the sludge adhering to the sliding arc plate 9 during the discharge process. The sludge discharge and cleaning process is simple, which improves the practicality of the equipment.
[0038] An avoidance groove 6 is provided through the end of the receiving box 10 near the driving assembly 14. The driving assembly 14 includes a horizontally fixed support bar 19. Horizontally arranged arc-shaped top plates 17 are provided on the left and right sides and below the support bar 19. The left and right ends and bottom of the support bar 19 are respectively provided with a plurality of fixed first-stage electric telescopic cylinders 18, discharge electric telescopic cylinders 20 and second-stage electric telescopic cylinders 16. The telescopic ends of the first-stage electric telescopic cylinder 18, discharge electric telescopic cylinder 20 and second-stage electric telescopic cylinder 16 are fixedly connected to the three arc-shaped top plates 17 respectively.
[0039] The telescopic amounts of the telescopic ends of the first-stage electric telescopic cylinder 18, the second-stage electric telescopic cylinder 16 and the discharge electric telescopic cylinder 20 gradually increase. When the arc-shaped top plate 17 passes through the avoidance groove 6 and abuts against the sliding arc plate 9, it drives the sliding arc plate 9 to move. When the arc-shaped top plate 17 is reset, it avoids the containing box 10.
[0040] The feeding assembly 7 includes a feed hopper 22 fixedly connected to the upper outer wall of the dehydration cylinder 5, the lower port of the feed hopper 22 is connected to the feed trough 8, a vertically arranged reset plate 25 is provided in the feed hopper 22, and two vertically arranged reset electric control telescopic cylinders 24 are provided above the upper port of the feed hopper 22. The reset electric control telescopic cylinders 24 are fixedly connected to the feed hopper 22 through a connecting bracket 23, and the telescopic ends of the reset electric control telescopic cylinders 24 are fixedly connected to the reset plate 25;
[0041] Before adding sludge into the holding box 10, the reset electric telescopic cylinder 24 drives the reset plate 25 to move downward. When the reset plate 25 descends into the holding box 10 and contacts the sliding arc plate 9, it drives the sliding arc plate 9 to slide until the sliding arc plate 9 is reset. The sludge to be dehydrated can be added to the holding box 10 through the feed hopper 22.
[0042] The discharge assembly 13 includes a guide plate 33 fixed to the right outer wall of the dehydration cylinder 5. The guide plate 33 is located below the discharge trough 12 and is tilted downward. The opposite side walls of the guide plate 33 are fixed with a vertically arranged baffle plate 32. One end of the baffle plate 32 is arc-shaped and contacts the right outer wall of the dehydration cylinder 5. A horizontally movable support plate 38 is provided on the side of the guide plate 33. A movable plate 35 is provided at the end of the support plate 38 for horizontal reciprocating sliding. The support plate 38 is perpendicular to the sliding direction of the movable plate 35. A plurality of vertically arranged cleaning plates 34 are horizontally and side by side at the end of the movable plate 35. The end of the cleaning plate 34 close to the dehydration cylinder 5 is an arc-shaped structure.
[0043] The sludge discharged through the discharge trough 12 falls into the collection container under the guidance of the guide plate 33, and the support plate 38 moves horizontally until the arc-shaped end of the cleaning plate 34 passes through the discharge trough 12 and enters the holding box 10 and abuts against the sliding arc plate 9. The movable plate 35 slides back and forth horizontally, thereby driving several cleaning plates 34 to move back and forth horizontally. The cleaning plates 34 can clean the sludge adhering to the sliding arc plate 9.
[0044] The dehydration cylinder 5 is fixedly connected to the support base 1 through two positioning plates 15. The opposite ends of the two rotating circular plates 11 are coaxially fixed with drive tubes 26. The opposite ends of the two drive tubes 26 respectively extend through the dehydration cylinder 5 to the outside and are rotatably connected to the dehydration cylinder 5. A drive wheel 31 is rotatably provided at the end of one of the positioning plates 15, and a driven wheel 27 is fixedly mounted on the outer wall of one of the drive tubes 26. The drive wheel 31 is connected to the driven wheel 27 through a transmission belt 29.
[0045] A driving motor 30 is fixedly mounted on one end of one of the positioning plates 15 . The output end of the driving motor 30 passes through the positioning plate 15 and is fixedly connected to the driving wheel 31 .
[0046] The opposite ends of the dehydration cylinder 5 are fixed with fixed U-shaped plates 28, and the opposite side walls of the support bar 19 are fixed with connecting columns 21 coaxially arranged with the driving tube 26. The opposite ends of the two connecting columns 21 pass through the rotating circular plate 11 and the driving tube 26 in sequence and are fixedly connected to the two fixed U-shaped plates 28 respectively. The connecting columns 21 are rotatably connected to the rotating circular plate 11.
[0047] The ends of the baffle plates 32 are fixedly connected to horizontally arranged fixing brackets 40 , and the fixing brackets 40 are fixedly provided with horizontally arranged pneumatic telescopic cylinders 39 . The telescopic ends of the two pneumatic telescopic cylinders 39 are fixedly connected to the support plate 38 .
[0048] Two sliding plates 36 are fixed to the end of the movable plate 35, one end of the sliding plate 36 is slidably connected to the support plate 38, and a horizontally arranged reciprocating telescopic cylinder 37 is fixed to the end of the support plate 38, and the telescopic end of the reciprocating telescopic cylinder 37 is fixedly connected to one of the sliding plates 36.
[0049] The working principle of this device is:
[0050] When the sludge is dehydrated, the reset electric telescopic cylinder 24 drives the reset plate 25 to move downward. When the reset plate 25 drops into the holding box 10 and abuts against the sliding curved plate 9, it drives the sliding curved plate 9 to slide until the sliding curved plate 9 is reset and the sludge to be dehydrated is added to the holding box 10 located above through the feed hopper 22. In the process of adding sludge, the first-level electric telescopic cylinder 18, the second-level electric telescopic cylinder 16 and the discharge electric telescopic cylinder 20 respectively drive the three arc-shaped top plates 17 to move. The arc-shaped top plates 17 pass through the avoidance groove 6 and abut against the sliding curved plate 9 and drive the sliding curved plate 9 to move. The sliding curved plates 9 in the left and lower holding boxes 10 can squeeze and dehydrate the sludge in the holding box 10. The sewage squeezed out of the sludge enters the collection water tank 3 through the drainage hole 4 and is discharged by the drainage pipe 2. The sliding curved plate 9 in the right holding box 10 can complete the dehydration. The final sludge is pushed to the outside of the dewatering cylinder 5. After all processes are completed, the reset electric telescopic cylinder 24 drives the reset plate 25 to move upward into the feed hopper 22. The first-level electric telescopic cylinder 18, the second-level electric telescopic cylinder 16 and the discharge electric telescopic cylinder 20 respectively drive the three arc-shaped top plates 17 to reset. The three arc-shaped top plates 17 all avoid the holding box 10. The driving motor 30 drives the driving wheel 31, the transmission belt 29 and the driven wheel 27 to rotate, and then drives the driving pipe 26, the rotating circular plate 11 and the four holding boxes 10 to rotate. After the rotating circular plate 11 rotates 90°, the above-mentioned processing steps are repeated for the sludge in the four holding boxes 10. The sludge adding process, the sludge discharging process and the sludge dewatering process of the equipment are independent of each other and do not affect each other. The operations of adding sludge and discharging sludge can be carried out simultaneously during the sludge dewatering process. Therefore, the continuous dehydration of the sludge is high, which improves the sludge dewatering efficiency.
[0051] The telescopic ends of the first-stage electric telescopic cylinder 18, the second-stage electric telescopic cylinder 16, and the discharge electric telescopic cylinder 20 gradually increase in telescopic amount. Therefore, the extrusion force of the sliding arc plate 9 in the lower holding box 10 on the sludge is greater than the extrusion force of the sliding arc plate 9 in the left holding box 10 on the sludge, thereby realizing the multi-stage dehydration function of the sludge and improving the dehydration effect of the sludge.
[0052] The sludge discharged through the discharge chute 12 falls into the collection container under the guidance of the guide plate 33, and the pneumatic telescopic cylinder 39 drives the support plate 38 to move horizontally until the arc-shaped end of the cleaning plate 34 passes through the discharge chute 12 and enters the holding box 10 and abuts against the sliding arc plate 9. The reciprocating telescopic cylinder 37 drives the sliding plate 36 and the movable plate 35 to move back and forth horizontally, thereby driving several cleaning plates 34 to move back and forth horizontally. The cleaning plate 34 can clean the sludge adhered to the sliding arc plate 9, realizing the function of automatically discharging the dehydrated sludge and automatically cleaning the sludge adhered to the sliding arc plate 9 during the discharge process. The sludge discharge and cleaning process are simple, which improves the practicality of the equipment.
[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.
Claims
1. A multi-stage solid-liquid separation system for industrial wastewater treatment, characterized by: The invention comprises a support base (1), a dehydration cylinder (5) with sealed ends is fixedly provided horizontally above the support base (1), two rotating circular plates (11) are coaxially provided in the dehydration cylinder (5) and are rotatably connected to the inner wall thereof, four horizontally arranged receiving boxes (10) are evenly distributed along the circumference between the two rotating circular plates (11), the opposite side walls of the receiving boxes (10) are fixedly connected to the two rotating circular plates (11), one end of the receiving box (10) is opened and frictionally abuts against the inner wall of the dehydration cylinder (5), a sliding arc plate (9) is provided on the inner wall of the receiving box (10) for sliding sealing, and the upper outer wall and the right outer wall of the dehydration cylinder (5) are respectively provided with a feed screw connected to the inner cavity thereof. The dehydration cylinder (5) is provided with a plurality of drainage holes (4) connected to its inner cavity on the left outer wall and the lower outer wall. A collecting water box (3) with an open end is provided on the side of the dehydration cylinder (5). The open end of the collecting water box (3) is fixedly connected to the outer wall of the dehydration cylinder (5). The drainage holes (4) are all located in the collecting water box (3). A drainage pipe (2) connected to its inner cavity is fixedly provided at the bottom of the collecting water box (3). The outer wall of the dehydration cylinder (5) is provided with a loading assembly (7) and a discharging assembly (13) at the positions of the feeding trough (8) and the discharging trough (12), respectively. A driving assembly (14) for controlling the sliding of the sliding arc plate (9) is provided in the dehydration cylinder (5).
2. The multi-stage solid-liquid separation system for industrial wastewater treatment according to claim 1, characterized in that: The end of the receiving box (10) close to the driving assembly (14) is penetrated by an avoidance groove (6), and the driving assembly (14) includes a horizontally fixed support bar (19), and the left and right sides and the bottom of the support bar (19) are provided with a horizontally arranged arc-shaped top plate (17), and the left and right ends and the bottom of the support bar (19) are respectively provided with a plurality of fixedly arranged first-level electric telescopic cylinders (18), discharge electric telescopic cylinders (20) and second-level electric telescopic cylinders (16), and the telescopic ends of the first-level electric telescopic cylinder (18), discharge electric telescopic cylinder (20) and second-level electric telescopic cylinder (16) are fixedly connected to the three arc-shaped top plates (17).
3. The multi-stage solid-liquid separation system for industrial wastewater treatment according to claim 2, characterized in that: The feeding assembly (7) includes a feed hopper (22) fixedly connected to the upper outer wall of the dehydration cylinder (5), the lower port of the feed hopper (22) is connected to the feed trough (8), a vertically arranged reset plate (25) is provided in the feed hopper (22), and two vertically arranged reset electric control telescopic cylinders (24) are provided above the upper port of the feed hopper (22), the reset electric control telescopic cylinders (24) are fixedly connected to the feed hopper (22) through a connecting bracket (23), and the telescopic ends of the reset electric control telescopic cylinders (24) are fixedly connected to the reset plate (25).
4. The multi-stage solid-liquid separation system for industrial wastewater treatment according to claim 3, characterized in that: The discharge assembly (13) includes a guide plate (33) fixed to the right outer wall of the dehydration cylinder (5), the guide plate (33) is located below the discharge trough (12) and is tilted downward, the opposite side walls of the guide plate (33) are fixed with a vertically arranged baffle plate (32), one end of the baffle plate (32) is arc-shaped and contacts the right outer wall of the dehydration cylinder (5), a horizontally movable support plate (38) is provided on the side of the guide plate (33), the end of the support plate (38) is provided with a movable plate (35) for horizontal reciprocating sliding, the support plate (38) is perpendicular to the sliding direction of the movable plate (35), and the end of the movable plate (35) is horizontally and side by side with a plurality of vertically arranged cleaning plates (34), and the end of the cleaning plate (34) close to the dehydration cylinder (5) is an arc-shaped structure.
5. The multi-stage solid-liquid separation system for industrial wastewater treatment according to claim 4, characterized in that: The dehydration cylinder (5) is fixedly connected to the support base (1) through two positioning plates (15); the opposite ends of the two rotating circular plates (11) are coaxially fixed with a driving tube (26); the opposite ends of the two driving tubes (26) respectively pass through the dehydration cylinder (5) and extend to the outside and are rotatably connected to the dehydration cylinder (5); a driving wheel (31) is rotatably provided at the end of one of the positioning plates (15); a driven wheel (27) is fixedly sleeved on the outer wall of one of the driving tubes (26); and the driving wheel (31) is connected to the driven wheel (27) through a transmission belt (29).
6. The multi-stage solid-liquid separation system for industrial wastewater treatment according to claim 5, characterized in that: A driving motor (30) is fixedly provided at the end of one of the positioning plates (15), and an output end of the driving motor (30) passes through the positioning plate (15) and is fixedly connected to a driving wheel (31).
7. The multi-stage solid-liquid separation system for industrial wastewater treatment according to claim 6, characterized in that: The opposite ends of the dehydration cylinder (5) are fixedly connected to fixed U-shaped plates (28), and the opposite side walls of the support bar (19) are fixedly connected to connecting columns (21) coaxially arranged with the driving tube (26). The opposite ends of the two connecting columns (21) pass through the rotating circular plate (11) and the driving tube (26) in sequence and are fixedly connected to the two fixed U-shaped plates (28) respectively. The connecting columns (21) are rotatably connected to the rotating circular plate (11).
8. The multi-stage solid-liquid separation system for industrial wastewater treatment according to claim 7, characterized in that: The ends of the baffle plates (32) are fixedly connected to horizontally arranged fixed brackets (40), and the fixed brackets (40) are fixedly provided with horizontally arranged pneumatic telescopic cylinders (39), and the telescopic ends of the two pneumatic telescopic cylinders (39) are fixedly connected to the support plate (38).
9. The multi-stage solid-liquid separation system for industrial wastewater treatment according to claim 8, characterized in that: Two sliding plates (36) are fixedly connected to the end of the movable plate (35), one end of the sliding plate (36) is slidably connected to the support plate (38), and a horizontally arranged reciprocating telescopic cylinder (37) is fixedly provided at the end of the support plate (38), and the telescopic end of the reciprocating telescopic cylinder (37) is fixedly connected to one of the sliding plates (36).