Auxiliary device for a dehydrator
By wrapping the sludge with multiple layers of filter cloth and combining it with a lifting mechanism and a filter cloth transfer vehicle, the problem of low dewatering efficiency of single-layer dewatering is solved, and efficient sludge dewatering and solid-liquid separation are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG CHUNJIANG ENVIRONMENTAL TECH CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-06-26
AI Technical Summary
In existing technologies, single-layer dewatering is inefficient and sludge is prone to overflow from the lateral gaps, resulting in poor dewatering effect.
The solution employs a multi-layer filter cloth wrapping method, which achieves four-sided sealing through a lifting mechanism and a cloth lifting and covering mechanism. Combined with a filter cloth transfer vehicle and a cleaning device, it enables continuous operation of the multi-layer sludge package.
It improves dewatering and filtration efficiency, prevents sludge from leaking out from the side, and enhances the overall dewatering effect and solid-liquid separation efficiency of the equipment.
Smart Images
Figure CN224411608U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of sludge treatment, specifically relating to an auxiliary device for a dewatering machine. Background Technology
[0002] Sludge dewatering, a core step in reducing moisture content to achieve sludge reduction and resource utilization, was previously mainly achieved using thermal drying technology. For example, a disc dryer consumes 1.35-1.55 tons of steam / ton of water to dry the sludge moisture content from 80% to 40%, but the processing cost is as high as 230 yuan / ton, resulting in excessive energy consumption and insufficient economic efficiency. To overcome this bottleneck, the field has introduced mechanical pressure filtration dewatering technology: through high-pressure pressing technology, the sludge moisture content can be significantly reduced from 80% to 60%, thereby greatly reducing the water evaporation load of subsequent thermal drying.
[0003] Chinese invention patent application CN119638153A discloses a pressure filter device for liquid-containing materials. It uses two layers of filter cloth to clamp and wrap sludge, followed by dewatering via a pressure mechanism. The upper and lower filter cloths move synchronously, completely trapping the sludge in a closed structure. The pressure device then squeezes and dewaters the wrapped sludge. However, this solution has the following drawbacks:
[0004] 1. During the dewatering process, although double-layer filter cloth is used, only a single layer of sludge can be processed each time. The filter press operation needs to be repeated, and the processing capacity per unit time is limited, resulting in low overall dewatering efficiency.
[0005] 2. The double-layer filter cloth is only closed in the vertical direction, and there are still gaps on the sides that are not completely sealed. During high-pressure dewatering, sludge is easily squeezed out from the side gaps, which not only contaminates the equipment, but also reduces the dewatering effect and solid-liquid separation efficiency. Utility Model Content
[0006] This utility model proposes an auxiliary device for a dewatering machine, the purpose of which is to solve the problems of low efficiency in single-layer dewatering and easy sludge overflow caused by incomplete enclosure.
[0007] The technical solution of this utility model is as follows:
[0008] A dewatering machine auxiliary device includes a base, on which adjacent unpacking stations and mud-wrapping stations are provided;
[0009] The unpacking station and the mud packing station are respectively equipped with a first lifting mechanism at the bottom. The lifting push plate at the top of the first lifting mechanism is used to pass through the window at the bottom of the container that carries the mud pack at this station to drive the lifting tray in the container and the mud pack stacked on top of it to move up and down.
[0010] The unpacking station is equipped with an unpacking device, which is used to open the mud pack in the container.
[0011] The substrate is also equipped with a filter cloth transfer vehicle and a filter cloth cleaning device located between the unpacking station and the mud-wrapping station. The filter cloth transfer vehicle is used to transport the unpacked filter cloth to the mud-wrapping station, and the filter cloth cleaning device is used to clean the mud on the unpacked filter cloth.
[0012] The sludge-wrapping station is equipped with a sludge-laying device and a sludge-wrapping device. The sludge-laying device is used to lay the sludge to be dewatered onto the filter cloth, and the sludge-wrapping device is used to wrap the sludge into a container using the filter cloth.
[0013] As a further improvement to the dehydrator auxiliary device: the first lifting mechanism includes two screw jacks arranged in parallel, and the upper ends of the screws driven by the two screw jacks are connected to the bottom of the lifting push plate;
[0014] The drive shafts of the two screw jacks are connected by an intermediate connecting shaft to achieve synchronous rotation, and one of the drive shafts is connected to a drive motor.
[0015] As a further improvement to the dewatering machine auxiliary device: the unpacking device includes a first frame located directly above the unpacking station and fixed relative to the base, the first frame having a rectangular first opening for the mud bag to pass through; a set of cloth lifting mechanisms are respectively provided on the rear side of the first opening, i.e. the side away from the mud packing station, and on the left and right sides of the first opening.
[0016] As a further improvement to the dewatering machine auxiliary device: the cloth lifting mechanism includes a first movable frame and a first rotating plate; the first movable frame is horizontally slidably connected to the first frame and moves away from and towards the first opening under the drive of the first moving drive device; the outer end of the first rotating plate, i.e. the end away from the first opening, is rotatably connected to the first movable frame, and the inner end of the first rotating plate is equipped with a plurality of magnetic suction devices for adsorbing iron blocks at the edge of the filter cloth; the first movable frame is also provided with a lifting mechanism for pushing the first rotating plate to rotate.
[0017] As a further improvement to the auxiliary device of the dewatering machine: a frame spanning the unpacking station and the mud-packing station is installed on the base;
[0018] The filter cloth cleaning device is located in the middle of the frame and includes a third lifting mechanism, rollers, sludge plates and a collection tank.
[0019] The roller, sludge plate, and collection trough are arranged in sequence from top to bottom; the roller moves up and down relative to the frame under the drive of the third lifting mechanism, and the sludge plate and collection trough are fixed relative to the frame.
[0020] As a further improvement to the auxiliary device of the dewatering machine: the frame is also provided with a transfer track, and the filter cloth transfer cart travels back and forth along the transfer track between the unpacking station and the mud-wrapping station and passes through the gap between the roller and the mud-draining plate when traveling; the filter cloth transfer cart is provided with a gripper for grabbing the filter cloth.
[0021] As a further improvement to the dewatering machine auxiliary device: the mud-spreading device is installed on a frame that is fixed relative to the base and located directly above the mud-spreading station via a second lifting mechanism;
[0022] The mud-spreading device has a mud trough with a shape that matches the shape of the mud bag, and the bottom of the mud trough is provided with two sliding gates.
[0023] As a further improvement to the dewatering machine auxiliary device: the mud-wrapping device includes a second frame located directly above the mud-wrapping station and fixed relative to the base, the second frame having a rectangular second opening for the mud bag to pass through; a set of covering mechanisms are respectively provided around the second opening.
[0024] As a further improvement to the dehydrator auxiliary device: the cover mechanism includes a second movable frame and a second rotating plate; the second movable frame is horizontally slidably connected to the second frame, and moves away from and towards the second opening under the drive of the second movable drive device; the root of the second rotating plate is rotatably connected to the second movable frame;
[0025] The cover mechanism also includes a rotary drive device, a swing arm, and a connecting rod; the rotary drive device is mounted on the second frame and is used to drive the swing arm to swing; one end of the connecting rod is rotatably connected to the swing arm and the other end is rotatably connected to the second rotating plate.
[0026] As a further improvement to the dehydrator auxiliary device: the connecting rod includes two threaded rods with opposite thread directions and a threaded sleeve, the two ends of which are threadedly engaged with the two threaded rods respectively.
[0027] Compared with the prior art, the present invention has the following advantages:
[0028] 1. This utility model adopts a scheme of wrapping sludge into blocks with multiple filter cloths and pressing them in layers. On the one hand, it can filter a large amount of sludge at the same time, which is more efficient. On the other hand, the filter cloths are wrapped from all sides, so they will not leak from the sides when pressed, thereby improving the dewatering and filtration effect.
[0029] 2. This utility model combines a filter cloth transfer vehicle, a filter cloth cleaning device, and a mud-closing device, realizing the sequential and continuous operation of unpacking and unloading multi-layer mud bags, cleaning and transferring filter cloths, and packing mud, thereby further improving work efficiency. Attached Figure Description
[0030] Figure 1 This is a schematic diagram of the auxiliary mechanism of the dewatering machine of the present invention, which includes an unpacking device, a filter cloth transfer vehicle, a filter cloth cleaning device, a mud-closing device, and a mud-wrapping device. The first lifting mechanism is not included in this diagram.
[0031] Figure 2 for Figure 1 A magnified view of part B in the middle section;
[0032] Figure 3 This is a structural diagram of the frame, the second lifting mechanism, the filter cloth cleaning device, and the transfer track, etc.
[0033] Figure 4 This is a schematic diagram of the unpacking device;
[0034] Figure 5 This is a cross-sectional schematic diagram of the first rotating plate and related mechanisms on one side of the unpacking device;
[0035] Figure 6 This is a schematic diagram of the filter cloth transfer vehicle.
[0036] Figure 7 This is a schematic diagram showing the gripper of the filter cloth transfer cart starting to pull the filter cloth.
[0037] Figure 8 This is a three-dimensional sectional view of the mud-spreading device;
[0038] Figure 9 This is a schematic diagram of the mud-coating device;
[0039] Figure 10 This is a schematic diagram showing the structural relationship of the second rotating plate and related mechanisms on one side of the mud-covering device;
[0040] Figure 11 This is a schematic diagram of the overall structure of the dehydrator in Example 2;
[0041] Figure 12 This is a schematic diagram of the lower layer of the substrate, the conveying system, and the first lifting mechanism.
[0042] Figure 13 for Figure 12 A magnified view of part A in the middle;
[0043] Figure 14 This is a workstation layout diagram for the dewatering machine;
[0044] Figure 15 This is a schematic diagram of the transverse transfer vehicle and the cage frame.
[0045] Figure 16 This is a structural schematic diagram of a transverse transfer vehicle;
[0046] Figure 17This is a schematic diagram of the transverse transfer vehicle after the lifting pallet has been removed.
[0047] Figure 18 This is a schematic diagram of the first lifting mechanism. Detailed Implementation
[0048] The technical solution of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Example 1
[0049] This embodiment provides an auxiliary device for a dehydrator, such as... Figure 1 , Figure 11 , Figure 12 , Figure 14 It includes a base 1, on which adjacent unpacking stations 18 and mud-wrapping stations 19 are provided.
[0050] Correspondingly, the unpacking station 18 and the mud packing station 19 are respectively equipped with a first lifting mechanism 9 at their bottom. The lifting push plate 26 at the top of the first lifting mechanism 9 is used to pass through the window at the bottom of the container carrying the mud pack at this station to drive the lifting tray 23 in the container and the mud pack stacked above it to move up and down.
[0051] Specifically, such as Figure 18 The first lifting mechanism 9 includes two parallel screw jacks 25, the upper ends of the screws driven by both screw jacks 25 being connected to the bottom of the lifting push plate 26. The drive shafts of the two screw jacks 25 are connected by an intermediate connecting shaft to achieve synchronous rotation, and one of the drive shafts is connected to a drive motor. The bottom of the screw jacks 25 has a deep hole structure to provide sufficient movement space for the screws.
[0052] Furthermore, such as Figure 1 , Figure 11 and Figure 14 The unpacking station 18 is equipped with an unpacking device 4, which is used to open the mud bags in the container. The substrate 1 is also equipped with a filter cloth transfer cart 5 and a filter cloth cleaning device 6 located between the unpacking station 18 and the mud-packing station 19. The filter cloth transfer cart 5 is used to transport the unpacked filter cloth to the mud-packing station 19, and the filter cloth cleaning device 6 is used to clean the sludge from the unpacked filter cloth. The mud-packing station 19 is equipped with a mud-laying device 7 and a mud-packing device 8. The mud-laying device 7 is used to lay the sludge to be dewatered onto the filter cloth, and the mud-packing device 8 is used to pack the sludge into a container using the filter cloth.
[0053] Specifically, such as Figure 1 , Figure 4 , Figure 11The unpacking device 4 includes a first frame 40 fixedly disposed above the unpacking station 18 and relative to the base 1. The first frame 40 has a rectangular first opening for the mud bag to pass through. A set of cloth lifting mechanisms are respectively provided on the rear side of the first opening, i.e. the side away from the mud packing station 19, and on the left and right sides of the first opening.
[0054] like Figure 4 and Figure 5 The fabric lifting mechanism includes a first movable frame 39 and a first rotating plate 37. The first movable frame 39 is horizontally slidably connected to the first frame 40 and moves away from and towards the first opening under the drive of the first moving drive device 41. The outer end of the first rotating plate 37, i.e., the end away from the first opening, is rotatably connected to the first movable frame 39, and the inner end of the first rotating plate 37 is equipped with multiple magnetic suction devices 38 for adsorbing iron blocks at the edge of the filter cloth. The first movable frame 39 is also provided with a lifting mechanism 42 for pushing the first rotating plate 37 to rotate.
[0055] In this embodiment, the first moving drive device 41 is a cylinder.
[0056] In this embodiment, the lifting mechanism 42 is a cylinder, the lower end of which is rotatably connected to the first movable frame 39 and the upper end of which is rotatably connected to the first rotating plate 37.
[0057] like Figure 3 A frame 31 is installed on the base 1, spanning the unpacking station 18 and the mud-packing station 19.
[0058] The filter cloth cleaning device 6 is located in the middle of the frame 31. It includes a third lifting mechanism 32, a roller 33, a mud plate 34, and a collection trough 35.
[0059] The roller 33, sludge dewatering plate 34, and collection trough 35 are arranged sequentially from top to bottom. The roller 33 moves up and down relative to the frame 31 under the drive of the third lifting mechanism 32, while the sludge dewatering plate 34 and collection trough 35 are fixedly set relative to the frame 31.
[0060] The frame 31 is also equipped with a transfer track 36. The filter cloth transfer cart 5 travels back and forth along the transfer track 36 between the unpacking station 18 and the mud-wrapping station 19, passing through the gap between the roller 33 and the mud-dampening plate 34 during its movement. Figure 6 The filter cloth transfer vehicle 5 is equipped with a gripper 43 for gripping the filter cloth.
[0061] like Figure 1 , Figure 2 and Figure 8The mud-spreading device 7 is mounted on the frame 31 via a second lifting mechanism 27 and is located directly above the mud-coating station 19. A guide column 30 is also connected to the mud-spreading device 7, and the guide column 30 cooperates with a guide sleeve on the frame 31.
[0062] The sludge distribution device 7 has a sludge trough 28 whose shape matches that of the sludge bag, and a pipe for conveying sludge is provided above the sludge trough 28. Two sliding, opposing gates 29 are provided at the bottom of the sludge trough 28. Specifically, a motor and a transmission chain mechanism are respectively provided on both sides of the sludge trough 28 of the sludge distribution device 7. The motor drives the transmission chain mechanism to operate, and the chain of the transmission chain mechanism is connected to the gate 29 on the corresponding side, controlling the gate 29 to move horizontally along the slide rail at the bottom of the sludge distribution device 7.
[0063] like Figure 1 , Figure 9 and Figure 10 The mud-wrapping device 8 includes a second frame 45 fixedly disposed above the mud-wrapping station 19 and relative to the base 1. The second frame 45 has a rectangular second opening for the mud bag to pass through. A set of covering mechanisms are respectively disposed around the second opening.
[0064] The cover mechanism includes a second movable frame 46 and a second rotating plate 44. The second movable frame 46 is horizontally slidably connected to the second frame 45 and moves away from and towards the second opening under the drive of the second moving drive device 47. The root of the second rotating plate 44 is rotatably connected to the second movable frame 46.
[0065] The cover mechanism also includes a rotary drive device 48, a swing arm 49, and a connecting rod 50. The rotary drive device 48 (which can be a rotary cylinder or a motor) is mounted on the second frame 45 and is used to drive the swing arm 49 to swing. One end of the connecting rod 50 is rotatably connected to the swing arm 49, and the other end is rotatably connected to the second rotating plate 44.
[0066] In this embodiment, the second moving drive device 47 consists of two sets of cylinders.
[0067] In this embodiment, the connecting rod 50 includes two threaded rods with opposite thread directions and a threaded sleeve. The two ends of the threaded sleeve are threadedly engaged with the two threaded rods respectively. Rotating the threaded sleeve can adjust the length of the entire connecting rod 50, thereby changing the angular travel of the second rotating plate 44. Example 2
[0068] This embodiment provides a dehydrator that includes the above-mentioned dehydrator auxiliary device.
[0069] like Figure 11 and Figure 14A direct-pressure sludge dewatering machine, wherein a pre-compression station 21 and a main compression station 16 are also provided on the base 1. The unpacking station 18, the sludge packing station 19, the pre-compression station 21 and the main compression station 16 are distributed at the four vertices of a rectangle and form a closed loop path in a clockwise (or counterclockwise) direction.
[0070] Pre-pressing station 21 and main pressing station 16 are respectively equipped with pre-pressing device 2 and main pressing device 3. They press down on the mud bag with oil cylinders to squeeze out the water in the mud bag and achieve filter dewatering.
[0071] The dewatering machine also includes the container for stacking mud bags and the conveying system for circulating and transporting the container along the closed-loop path.
[0072] Specifically, such as Figures 11 to 14 The pre-compression station 21 and the main compression station 16 are located to the left of the mud-packing station 19 and the unpacking station 18.
[0073] The conveying system includes a second transverse track 14 running left and right on the unpacking station 18, the mud-packing station 19, the pre-compression station 21, and the main compression station 16. It also includes two sets of longitudinal tracks 12 located to the left of the pre-compression station 21 and the main compression station 16, and located between the pre-compression station 21 and the main compression station 16 and the mud-packing station 19 and the unpacking station 18. It also includes two longitudinal transfer vehicles 10 that move back and forth along the two sets of longitudinal tracks 12 respectively.
[0074] The longitudinal transfer vehicle 10 is equipped with a first transverse track 13 that is at the same height as and matches the second transverse track 14. When the two are aligned, they can be spliced into a continuous track.
[0075] like Figure 15 The container consists of four transverse transfer vehicles 11 equipped with cage frames, and the wheels at the bottom of the transverse transfer vehicles 11 cooperate with the first transverse track 13 and the second transverse track 14.
[0076] The longitudinal transfer vehicle 10 and the transverse transfer vehicle 11 are equipped with their own drive devices (motors) and travel along the corresponding tracks by means of wheels.
[0077] Furthermore, such as Figures 15 to 17 The transverse transfer vehicle 11 has a window in the middle, and a lifting pallet 23 for carrying mud bags is provided above the window. The lifting pallet 23 is slidably engaged with the cage frame, and the area of the lifting pallet 23 is larger than the area of the window.
[0078] Furthermore, multiple support springs 24 are installed around the window of the transverse transfer carriage 11 through mounting holes. The top of the support springs 24 is used to contact the bottom of the lifting pallet 23 to provide a cushioning effect. However, during filter pressing and dewatering, the bottom of the lifting pallet 23 will directly contact the transverse transfer carriage 11 and be supported by the transverse transfer carriage 11.
[0079] The aforementioned dehydrator alternately performs the transfer phase actions and the working phase actions during operation:
[0080] During the transfer phase, the four cages on the unpacking station 18, the mud packing station 19, the pre-compression station 21, and the main compression station 16 are moved to the next station along a closed-loop path using a conveying system.
[0081] Before the transfer phase begins, all first lifting mechanisms 9 must be lowered to their lowest positions to avoid interference.
[0082] Specifically, such as Figure 14 The process of the transfer phase is as follows:
[0083] Step 1: The two longitudinal transfer cars 10 are moved to the left and right sides of the pre-compression station 21, namely the second transfer station 22 and the fourth transfer station 20.
[0084] Step 2: The transverse transfer car 11 on the pre-compression station 21 moves to the left onto the longitudinal transfer car 10 on the left side (second transfer station 22). Then, the transverse transfer car 11 on the mud-coating station 19 moves to the left, passing through the longitudinal transfer car 10 between the pre-compression station 21 and the mud-coating station 19 (fourth transfer station 20) to reach the pre-compression station 21.
[0085] Step 3: The two longitudinal transfer cars 10 are moved to the left and right sides of the main pressing station 16, namely the first transfer station 15 and the third transfer station 17.
[0086] Step 4: The transverse transfer car 11 on the unpacking station 18 moves to the left and arrives at the longitudinal transfer car 10 located between the main pressing station 16 and the unpacking station 18 (the third transfer station 17).
[0087] Step 5: The longitudinal transfer car 10, located between the main pressing station 16 and the unpacking station 18 (third transfer station 17), moves to the pre-pressing station 21 and the mud-packing station 19 (fourth transfer station 20).
[0088] Step 6: The transverse transfer car 11 on the longitudinal transfer car 10 between the pre-compression station 21 and the mud-coating station 19 (fourth transfer station 20) moves to the right onto the mud-coating station 19.
[0089] Step 7: The longitudinal transfer car 10 between the pre-compression station 21 and the mud-packing station 19 (fourth transfer station 20) moves to the main compression station 16 and the unpacking station 18 (third transfer station 17).
[0090] Step 8: The transverse transfer car 11 on the main pressing station 16 moves to the unpacking station 18 via the longitudinal transfer car 10 located between the main pressing station 16 and the unpacking station 18 (third transfer station 17). Then, the transverse transfer car 11 on the longitudinal transfer car 10 on the left side of the main pressing station 16 (first transfer station 15) moves to the right onto the main pressing station 16.
[0091] At this point, the containers (cages) at the four workstations have each moved one workstation clockwise.
[0092] During the working phase, the pre-compression device 2 and the main compression device 3 press and filter the mud bags in the cages at their respective workstations to remove water. The unpacking device 4 unpacks the mud bags in the cages at its respective workstations one by one. The filter cloth transfer cart 5 moves back and forth between the unpacking workstation 18 and the mud-packing workstation 19, moving the removed filter cloths one by one to the mud-packing device 8, and cleaning the filter cloths using the filter cloth cleaning device 6 during the movement. The mud-laying device 7 lays the sludge on the transferred filter cloth. The mud-packing device 8 packages the filter cloth and the laid sludge into mud bags and puts them into the cages at its workstation.
[0093] The specific actions during the work phase are as follows:
[0094] Pre-compression device 2 and main compression device 3 dewater the mud bags at their respective workstations by pressing and filtering them. At the same time:
[0095] The first lifting mechanism 9 of the unpacking station 18 operates intermittently, advancing the mud bags one by one according to the thickness of the mud bag, pushing the mud bags in the cage of the unpacking station 18 into the first opening of the unpacking device 4. Meanwhile, the first lifting mechanism 9 of the mud-packing station 19 operates intermittently, advancing the mud bags one by one according to the thickness of the mud bag, causing the mud bags packaged by the mud-packing device 8 to fall into and be stacked in the cage of the mud-packing station 19.
[0096] Whenever a new mud bag appears above the first opening of the unpacking device 4, the three cloth-lifting mechanisms of the unpacking device 4 perform the following actions in sequence according to the covering order of the filter cloth: the first moving frame 39 of the corresponding cloth-lifting mechanism moves horizontally closer to the mud bag, and uses the magnetic suction device 38 at the inner end of the first rotating plate 37 on the first moving frame 39 to attract the iron block on the filter cloth. Then the first rotating plate 37 is raised, pulling up the edge of the filter cloth on that side. After that, the first moving frame 39 moves outward, lifting the edge of the filter cloth on that side until the iron block on the filter cloth is removed from the magnetic suction device 38. Then the first rotating plate 37 falls back into place. After the three cloth-lifting mechanisms complete the unpacking, only the edge of the filter cloth near the mud-packing station 19 is covered with sludge.
[0097] Then the filter cloth transfer cart 5 grasps the edge of the opened filter cloth away from the mud-wrapping station 19 and moves it towards the mud-wrapping station 19. For example... Figure 3 and Figure 7 When the filter cloth transfer vehicle 5 passes the filter cloth cleaning device 6, the roller 33 of the filter cloth cleaning device 6 falls, clamping the filter cloth between the roller 33 and the sludge plate 34, scraping off the sludge on the filter cloth. The sludge falls into the collection trough 35 and is transported away by the auger. After the previous filter cloth is removed, the first lifting mechanism 9 of the unpacking station 18 lifts up the next sludge bag.
[0098] Before the filter cloth transfer cart 5 reaches the mud-packing station 19, the mud-packing device 8 completes the packaging of the previous mud bag. Then, the first lifting mechanism 9 of the mud-packing station 19 drives the lifting pallet 23 to fall, causing the previously packaged mud bag to sink into the cage below the second opening of the mud-packing device 8, until the top of the mud bag is flush with the second rotating plates 44 around the mud-packing device 8. At this time, the filter cloth transfer cart 5 lays the cleaned filter cloth on the plane formed by the previous mud bag and the four second rotating plates 44. Then, the control roller 33 is raised, and the control filter cloth transfer cart 5 returns to the unpacking station 18 to grab the next filter cloth. At the same time, the height of the mud-clothing device 7 at the mud-packing station 19 is adjusted so that the distance between the bottom gate 29 and the filter cloth is equal to the set thickness of the mud bag. Then, the gate 29 is opened to let the sludge in the mud-clothing device 7 fall onto the filter cloth. Then, the gate 29 is closed, and the mud-clothing device 7 is raised again. Then, the four sets of cover cloth mechanisms of the sludge covering device 8 perform the following actions in sequence: the second moving frame 46 of the cover cloth mechanism on the corresponding side moves horizontally closer to the sludge, and at the same time, the second rotating plate 44 on the second moving frame 46 flips towards the sludge, covering the edge of the filter cloth onto the sludge. After that, the second moving frame 46 moves outward, and at the same time, the second rotating plate 44 returns to its original position. The cover cloth mechanism furthest from the unpacking station 18 operates first.
[0099] Once all the covering mechanisms have completed their actions, the mud bag is packaged. At this point, the first lifting mechanism 9 of the mud bagging station 19 is activated, causing the packaged mud bag to fall into the cage, awaiting the arrival of the next filter cloth.
[0100] During the working phase, the two sets of first lifting mechanisms 9, unpacking device 4, filter cloth transfer vehicle 5, filter cloth cleaning device 6 and mud wrapping device 8 work together in the manner described above until all mud bags in unpacking station 18 are unloaded and all filter cloths are transferred to mud wrapping station 19 and packaged onto new mud bags.
[0101] It should be noted that, as will be apparent to those skilled in the art, this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. The scope of this utility model is defined by the claims rather than the foregoing description.
Claims
1. An auxiliary device for a dehydrator, characterized in that: Includes a substrate (1), on which adjacent unpacking stations (18) and mud-wrapping stations (19) are provided. The unpacking station (18) and the mud packing station (19) are respectively equipped with a first lifting mechanism (9). The lifting push plate (26) at the top of the first lifting mechanism (9) is used to pass through the window at the bottom of the container carrying the mud pack in this station to drive the lifting tray (23) in the container and the mud pack stacked above it to move up and down. The unpacking station (18) is equipped with an unpacking device (4), which is used to open the mud pack in the container; The substrate (1) is also provided with a filter cloth transfer vehicle (5) and a filter cloth cleaning device (6) located between the unpacking station (18) and the mud-packing station (19). The filter cloth transfer vehicle (5) is used to transport the unpacked filter cloth to the mud-packing station (19), and the filter cloth cleaning device (6) is used to clean the mud on the unpacked filter cloth. The mud-packing station (19) is equipped with a mud-spreading device (7) and a mud-packing device (8). The mud-spreading device (7) is used to spread the sludge to be dewatered onto the filter cloth, and the mud-packing device (8) is used to pack the sludge into a container using the filter cloth.
2. The auxiliary device for a dehydrator as described in claim 1, characterized in that: The first lifting mechanism (9) includes two parallel screw jacks (25), the upper ends of the screws driven by the two screw jacks (25) are connected to the bottom of the lifting push plate (26); The drive shafts of the two screw jacks (25) are connected by an intermediate connecting shaft to achieve synchronous rotation, and one of the drive shafts is connected to the drive motor.
3. The auxiliary device for a dehydrator as described in claim 1, characterized in that: The unpacking device (4) includes a first frame (40) located directly above the unpacking station (18) and fixedly set relative to the base (1). The first frame (40) has a rectangular first opening for the mud bag to pass through. A set of cloth lifting mechanisms are respectively provided on the rear side of the first opening, that is, the side away from the mud packing station (19), and on the left and right sides of the first opening.
4. The dehydrator auxiliary device as described in claim 3, characterized in that: The fabric lifting mechanism includes a first movable frame (39) and a first rotating plate (37); the first movable frame (39) is horizontally slidably connected to the first frame (40) and moves away from and towards the first opening under the drive of the first moving drive device (41); the outer end of the first rotating plate (37), i.e. the end away from the first opening, is rotatably connected to the first movable frame (39), and the inner end of the first rotating plate (37) is equipped with a plurality of magnetic suction devices (38) for adsorbing iron blocks at the edge of the filter cloth; the first movable frame (39) is also provided with a lifting mechanism (42) for pushing the first rotating plate (37) to rotate.
5. The dehydrator auxiliary device as described in claim 1, characterized in that: A frame (31) spanning the unpacking station (18) and the mud-packing station (19) is installed on the base (1). The filter cloth cleaning device (6) is provided in the middle of the frame (31), which includes a third lifting mechanism (32), a roller (33), a mud-removing plate (34) and a collection tank (35). The roller (33), slurry plate (34) and collection trough (35) are arranged in order from top to bottom; the roller (33) moves up and down relative to the frame (31) under the drive of the third lifting mechanism (32), and the slurry plate (34) and collection trough (35) are fixed relative to the frame (31).
6. The auxiliary device for a dehydrator as described in claim 5, characterized in that: The frame (31) is also provided with a transfer track (36), and the filter cloth transfer cart (5) travels back and forth between the unpacking station (18) and the mud packing station (19) along the transfer track (36) and passes through the gap between the roller (33) and the mud plate (34) when traveling; the filter cloth transfer cart (5) is provided with a gripper (43) for grabbing the filter cloth.
7. The dehydrator auxiliary device as described in claim 1, characterized in that: The mud-applying device (7) is installed on a frame (31) fixed relative to the base (1) via a second lifting mechanism (27) and is located directly above the mud-applying station (19); The mud-spreading device (7) has a mud trough (28) with a shape matching the shape of the mud bag, and the bottom of the mud trough (28) is provided with two sliding gates (29).
8. The auxiliary device for a dehydrator as described in claim 1, characterized in that: The mud-wrapping device (8) includes a second frame (45) located directly above the mud-wrapping station (19) and fixedly set relative to the base (1). The second frame (45) has a rectangular second opening for the mud bag to pass through. A set of covering mechanisms are respectively set around the second opening.
9. The auxiliary device for a dehydrator as described in claim 8, characterized in that: The cover mechanism includes a second movable frame (46) and a second rotating plate (44); the second movable frame (46) is horizontally slidably connected to the second frame (45) and moves away from and towards the second opening under the drive of the second moving drive device (47); the root of the second rotating plate (44) is rotatably connected to the second movable frame (46); The cover mechanism also includes a rotary drive device (48), a swing arm (49), and a connecting rod (50); the rotary drive device (48) is mounted on the second frame (45) and is used to drive the swing arm (49) to swing; one end of the connecting rod (50) is rotatably connected to the swing arm (49), and the other end is rotatably connected to the second rotating plate (44).
10. The dehydrator auxiliary device as described in claim 9, characterized in that: The connecting rod (50) includes two threaded rods with opposite thread directions and a threaded sleeve, the two ends of which are threadedly engaged with the two threaded rods respectively.