Printing and dyeing wastewater biochemical sludge treatment system

Abstract

The invention relates to the technical field of sludge treatment, and provides a printing and dyeing wastewater biochemical sludge treatment system aiming at the situation that traditional biochemical sludge is inconvenient to store and transport due to the fact that the traditional biochemical sludge is rich in moisture, the printing and dyeing wastewater biochemical sludge treatment system comprises a support, a stacked screw machine, a material collecting hopper, a collecting box and a transfer conveying belt; the stacked screw machine and the material collecting hopper are arranged at the top of the bracket in a supporting manner; the stacked screw machine is used for dehydrating biochemical sludge; the material collecting hopper is positioned below the discharge end of the stacked screw machine and is used for receiving biochemical sludge output by the output end of the stacked screw machine; one end of the transfer conveying belt is located at the bottom of the support and is opposite to the material collecting hopper, and the other end of the transfer conveying belt extends to the outer side of the support; the collecting box is located on the transfer conveying belt, and a flexible sleeve bag is arranged in the collecting box in a sleeved mode. The device has the effect of facilitating biochemical sludge transportation and storage.

Description

Technical Field

[0001] The present application relates to the field of sludge treatment, and in particular to a printing and dyeing wastewater biochemical sludge treatment system. Background Art

[0002] In the process of treating printing and dyeing wastewater, a large amount of biochemical sludge will inevitably be produced. This type of biochemical sludge is rich in nitrification and denitrification bacteria required for various sewage treatments and is an indispensable biological resource in some sewage treatments.

[0003] In order to make full use of the biochemical sludge produced by printing and dyeing wastewater, this type of biochemical sludge is usually inoculated into sewage treatment systems such as electroplating sewage treatment pools that use nitrifying bacteria to decompose ammonia nitrogen in large quantities, so as to timely supplement the nitrification efficiency in the sewage treatment system and enhance the wastewater treatment effect.

[0004] With regard to the above-mentioned related technologies, the biochemical sludge produced by printing and dyeing wastewater usually contains a large amount of water, which makes the storage and transportation of the biochemical sludge inconvenient; at the same time, due to the presence of a large amount of water in the biochemical sludge, it is also very easy for the biochemical sludge to leak during storage and transportation; therefore, there is room for improvement. Summary of the invention

[0005] In order to facilitate the storage and transportation of biochemical sludge generated from printing and dyeing wastewater, the present application provides a printing and dyeing wastewater biochemical sludge treatment system.

[0006] The present application provides a printing and dyeing wastewater biochemical sludge treatment system, which adopts the following technical solutions: A printing and dyeing wastewater biochemical sludge treatment system comprises a support, a screw stacker, a collecting funnel, a collecting box and a transfer conveyor belt; the screw stacker and the collecting funnel are both supported on the top of the support, and the screw stacker is used for dehydrating the biochemical sludge; the collecting funnel is located below the discharge end of the screw stacker to receive the biochemical sludge output from the output end of the screw stacker; one end of the transfer conveyor belt is located at the bottom of the support and is arranged opposite to the collecting funnel, and the other end of the transfer conveyor belt extends to the outside of the support; the collecting box is located on the transfer conveyor belt, and a flexible bag is provided in the collecting box.

[0007] By adopting the above technical solution, after the biochemical sludge to be treated is dehydrated by the spiral stacker, the spiral stacker transfers the dehydrated biochemical sludge to the aggregate hopper through the output end and drops it into the flexible bag of the collection box through the aggregate funnel. After the flexible bag is filled with the dehydrated biochemical sludge, the collection box and the flexible bag containing the biochemical sludge are transported to the outside of the transfer conveyor belt through the transfer conveyor belt. After the top of the flexible bag is tied tightly, the flexible bag is moved out of the collection box by the handling equipment for storage or transportation. By effectively removing the water contained in the biochemical sludge by the spiral stacker and then putting it into the flexible bag, the subsequent storage and transportation of the biochemical sludge is facilitated, and at the same time, the situation that the biochemical sludge is prone to leakage and pollution during storage and transportation due to the high water content of the biochemical sludge is effectively reduced.

[0008] Preferably, a flow plate is supported at the bottom of the output end of the screw stacking machine, and the flow plate extends obliquely downward in a direction away from the screw stacking machine, and the inclined lower end of the flow plate extends above the top opening of the collecting funnel.

[0009] By adopting the above technical solution and setting the flow plate, the biochemical sludge subsequently transmitted from the output end of the screw stacking machine can first fall into the flow plate, and then slide into the collecting funnel through the flow plate. The flow plate is used to guide the dehydrated biochemical sludge so that it can fall into the collecting funnel more accurately.

[0010] Preferably, a wind knife is also supported above the aggregate hopper, and the wind knife air outlet is vertically arranged downward.

[0011] By adopting the above technical solution and setting up the wind knife, a compressed airflow can be blown toward the aggregate hopper through the wind knife, so that part of the biochemical sludge adhering to or clogging the aggregate hopper can fall out from the bottom of the aggregate hopper, thereby reducing the blockage inside the aggregate hopper.

[0012] Preferably, a first sliding drive component is provided on the bracket corresponding to the wind knife, and the first sliding drive component is drivingly connected to the wind knife for driving the wind knife to slide in a horizontal direction toward or away from the screw stacking machine.

[0013] By adopting the above technical solution, the first sliding drive member drives the wind knife to move back and forth in the direction close to or away from the screw stacking machine. On the one hand, the compressed air flow blown by the wind knife is beneficial to more comprehensively blow the biochemical sludge accumulated in the aggregate hopper, thereby further reducing the accumulation of biochemical sludge in the aggregate funnel, which leads to blockage of the aggregate funnel. On the other hand, when the wind knife moves above the flow plate, the compressed air flow blown by the wind knife can blow the biochemical sludge adhering to the flow plate into the aggregate funnel, thereby reducing the accumulation of biochemical sludge on the flow plate.

[0014] Preferably, a discharge pipe is vertically connected to the bottom of the collecting funnel, and a baffle plate is slidably inserted on the outside of the discharge pipe, and the baffle plate is used to block the discharge pipe. A second sliding drive component is also provided on the outside of the discharge pipe, and the second sliding drive component is drivingly connected to the baffle plate to drive the baffle plate to slide in the horizontal direction.

[0015] By adopting the above technical solution, before the collecting box is subsequently transferred from the bottom of the aggregate hopper to the outside of the bracket by the transfer conveyor belt, the second sliding drive member drives the baffle plate to slide into the discharge pipe to block the feed pipe, which is beneficial for limiting the biochemical sludge in the aggregate hopper from continuing to fall out after the subsequent transfer conveyor belt transfers the collecting box to the outside of the bracket, resulting in contamination of the transfer conveyor belt.

[0016] Preferably, an annular plate is connected around the outer periphery of the top end of the collecting box, and a plurality of limiting suction cups are evenly supported on the annular plate.

[0017] By adopting the above technical solution, after the flexible bag is put into the collection box, the top of the flexible bag can be turned outward to the annular plate, and the turned-out part of the flexible bag can be sucked and fixed by a number of limiting suction cups on the annular plate to temporarily limit and fix the top area of ​​the flexible bag, which is conducive to keeping the bag opening at the top of the flexible bag in an open state at all times, so that the biochemical sludge falling out of the subsequent aggregation funnel can better enter the flexible bag.

[0018] Preferably, a push plate is supported inside the collecting box, and a lifting drive member is provided outside the collecting box. The lifting drive member is drivingly connected to the push plate and is used to drive the push plate to move up and down vertically.

[0019] By adopting the above technical solution, after the flexible bag is filled with biochemical sludge, the push plate can be driven by the lifting drive member to move the flexible bag containing the biochemical sludge upward to push the flexible bag out of the collection box, so as to facilitate the subsequent transfer of the flexible bag containing the biochemical sludge from the collection box to the outside by equipment such as a crane or a handling robot.

[0020] Preferably, the lifting assembly includes a plurality of lifting cylinders, and the plurality of lifting cylinders are vertically supported on opposite sides of the collection box, and the piston rods of the lifting cylinders are connected to connecting rods, and the connecting rods are arranged parallel to the lifting cylinders, and the bottom ends of the connecting rods are connected to the side of the push plate.

[0021] By adopting the above technical scheme, the lifting cylinder can subsequently drive its own piston rod to extend and retract, thereby driving the push plate to move up and down, which is conducive to the subsequent upward movement of the push plate to push the flexible bag containing biochemical sludge out of the collection box; by setting a number of connecting rods on both sides of the push plate, on the one hand, it is convenient for the lifting cylinder piston rod to drive the push plate up and down through the corresponding connecting rods, and on the other hand, in the subsequent process of the lifting cylinder driving the push plate to move up, the connecting rods on both sides of the push plate can be used to limit the flexible bag containing biochemical sludge on the push plate to prevent it from falling from the push plate during the process of the push plate moving to the outside of the collection box.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. After the water in the biochemical sludge is removed by the spiral stacking machine, the dehydrated biochemical sludge is directed to the flexible bag on the collection box through the aggregate funnel. After it is transferred from the aggregate funnel to the outside of the bracket through the transfer conveyor belt, the flexible bag containing the biochemical sludge is taken out of the collection box for transportation or storage, which is convenient for the transportation and storage of the biochemical sludge and reduces the leakage of the biochemical sludge due to the high water content during transportation and storage.

[0023] 2. By supporting an air knife above the aggregate hopper and providing a first sliding drive member for driving the air knife to move horizontally toward or away from the screw stacker, when the biochemical sludge dehydrated by the screw stacker is subsequently diverted through the aggregate funnel, a compressed airflow is blown toward the aggregate funnel through the air knife, and the air knife is driven by the first sliding drive member to slide back and forth in the horizontal direction, and a compressed airflow is blown downward by the air knife to blow the biochemical sludge adhered and accumulated in the aggregate funnel downward to the outside of the aggregate funnel, thereby reducing the clogging of the aggregate funnel by the biochemical sludge; at the same time, the air knife can also be used to blow part of the biochemical sludge adhered to the flow plate into the aggregate funnel, thereby reducing the accumulation of biochemical sludge on the flow plate.

[0024] 3. By supporting a push plate in the collection box and arranging a lifting drive component on the collection box for driving the push plate to move up and down, when the flexible bag containing biochemical sludge is subsequently removed from the collection box, the push plate can be driven up by the lifting drive component to withdraw the flexible bag from the collection box, so as to facilitate the subsequent handling equipment to transfer the flexible bag from the collection box. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of a biochemical sludge treatment system used in an embodiment of the present application.

[0026] Figure 2 It is a schematic diagram of the local structure of the screw stacking machine and the aggregate hopper used in the embodiment of the present application.

[0027] Figure 3 yes Figure 2 Enlarged schematic diagram of part A in the middle.

[0028] Figure 4 yes Figure 2 Enlarged schematic diagram of part B in the middle.

[0029] Figure 5 It is a schematic diagram of the structure of a collection box used to illustrate an embodiment of the present application.

[0030] Figure 6 This is a schematic diagram of an embodiment of the present application used to illustrate the state in which the lifting drive member drives the pushing plate to push the biochemical bag containing biochemical sludge out of the collection box.

[0031] Description of reference numerals: 1. Bracket; 2. Screw stacker; 21. Flow plate; 3. Collecting funnel; 30. Discharge pipe; 301. Baffle plate; 302. Sliding cylinder; 31. Air knife; 32. Linear motor module; 320. Support; 321. Support plate; 4. Collecting box; 41. Ring plate; 42. Limiting suction cup; 43. Pushing plate; 44. Lifting cylinder; 441. Connecting rod; 5. Transfer conveyor belt. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-6 This application is described in further detail.

[0033] The present application discloses a printing and dyeing wastewater biochemical sludge treatment system, referring to Figure 1 and Figure 2 , including a support 1, a snail stacking machine 2, a collection hopper 3, a collection box 4 and a transfer conveyor belt 5; the snail stacking machine 2 and the collection hopper 3 are supported on the top of the support 1, and the collection hopper 3 is located below the output end of the snail stacking machine 2, and is used to receive the biochemical sludge output from the output end of the snail stacking machine 2. One end of the transfer conveyor belt 5 is located below the support 1 and is arranged opposite to the bottom opening of the collection hopper 3, and the other end of the transfer conveyor belt 5 extends out of the support 1; the collection box 4 is placed on the transfer conveyor belt 5; a flexible bag is also set inside the collection box 4, and the flexible bag is used to receive the biochemical sludge falling from the collection hopper 3.

[0034] After the treated biochemical sludge is dehydrated by the screw stacking machine 2, the dehydrated biochemical sludge is input into the collecting hopper 3 through the output end by the screw stacking machine 2, and then is guided into the flexible bag of the collecting box 4 through the collecting funnel 3. After the flexible bag is filled with biochemical sludge, the collecting box 4 is transferred from the bottom of the bracket 1 to the outside of the bracket 1 by the transfer conveyor belt 5 to obtain a larger operating space, and then the flexible bag containing the biochemical sludge is removed from the collecting box 4 for storage or transportation.

[0035] Reference Figure 2 and Figure 3, fences are supported on all sides of the top of the support 1; a ladder is also installed on the outside of the support 1, so that it is convenient to go back and forth between the ground and the top of the support 1 by climbing the ladder. A flow plate 21 is also installed at the output end of the snail stacking machine 2, and the flow plate 21 is located below the output end of the snail stacking machine 2; the flow plate 21 extends downwardly in a direction away from the snail stacking machine 2, and the inclined lower end of the flow plate 21 extends to above the top opening of the collection funnel 3. Through the setting of the flow plate 21, the biochemical sludge that has been dehydrated and output by the subsequent conveying section of the snail stacking machine 2 can first fall onto the flow plate 21, and then slide into the collection funnel 3 through the flow plate 21, and the flow plate 21 is used to accurately guide the biochemical sludge into the collection funnel 3. Baffles are vertically supported on the opposite sides of the flow plate 21, which is conducive to limiting the biochemical sludge from sliding out from the opposite sides of the flow plate 21 during the process of sliding on the flow plate 21.

[0036] Reference Figure 2 and Figure 3 A wind knife 31 is also supported on the top of the material collecting hopper 3. The wind knife 31 is arranged higher than the material flow plate 21, and the air outlet of the wind knife 31 is arranged vertically downward. A first sliding drive is also arranged on the bracket 1. The first sliding drive is connected to the wind knife 31 and is used to drive the wind knife 31 to move horizontally toward or away from the screw stacking machine 2. In this embodiment, the first sliding drive includes two linear motor modules 32; the two linear motor modules 32 are respectively located on opposite sides of the material collecting hopper 3, and the linear motor modules 32 are supported on the bracket 1 through the support 320. One end of the linear motor module 32 extends to the screw stacking machine 2, and the other end of the linear motor module 32 extends to the side of the collecting funnel 3 away from the screw stacking machine 2; a support plate 321 is also arranged between the two linear motor modules 32; the two ends of the support plate 321 are respectively connected to the slides of the two linear motor modules 32; the wind knife 31 is installed at the bottom of the support plate 321; and the first sliding drive member is driven and connected to the wind knife 31.

[0037] Through the above arrangement, the subsequent screw stacking machine 2 will introduce the dehydrated biochemical sludge from the output end to the collection hopper 3, and at the same time, the two linear motor modules 32 cooperate to drive the air knife 31 to move back and forth in the direction close to or away from the screw stacking machine 2. During the movement of the air knife 31, the compressed air flow is blown into the collection hopper 3 to blow part of the biochemical sludge accumulated and adhered to the inner wall and the bottom opening of the collection hopper 3 downward to the outside of the collection hopper 3, thereby reducing the situation where the biochemical sludge accumulates and blocks the collection hopper 3. At the same time, when the linear motor module 32 drives the air knife 31 to move above the flow plate 21, it can also blow part of the biochemical sludge adhered to the flow plate 21 to the collection hopper 3, thereby reducing the situation where the flow plate 21 is accumulated due to the accumulation of biochemical sludge, resulting in poor subsequent discharge.

[0038] Reference Figure 2 and Figure 4The bottom end of the collecting funnel 3 is also vertically connected to a discharge pipe 30, and the discharge pipe 30 is also provided with a baffle plate 301 for blocking the discharge pipe 30; a socket is provided on the outer side of the discharge plate corresponding to the baffle plate 301, and the baffle plate 301 is horizontally slidably plugged into the discharge pipe 30 through the socket. A second sliding drive member is also provided on the discharge pipe 30, and the second sliding drive member is drivingly connected to the baffle plate 301, and is used to drive the baffle plate 301 to slide in a direction close to or away from the discharge pipe 30. In this embodiment, the second sliding drive member includes two horizontally arranged sliding cylinders 302. The two sliding cylinders 302 are respectively supported on the opposite sides of the discharge pipe 30, and the baffle plate 301 is located between the two sliding cylinders 302. The piston rods of the two sliding cylinders 302 are connected to the end of the baffle plate 301 away from the discharge pipe 30 through a connecting block, so that the second sliding drive member is driven to be connected to the baffle plate 301. Subsequently, the two sliding cylinders 302 drive their own pistons to extend and retract, thereby driving the baffle plate 301 to slide in the direction close to or away from the discharge pipe 30, so as to realize the opening and closing of the discharge pipe 30.

[0039] When the collecting box 4 is located at the bottom of the collecting hopper 3, the two sliding cylinders 302 drive the baffle plate 301 to slide out of the discharge pipe 30 to open the discharge pipe 30, so as to facilitate the biochemical sludge in the collecting hopper 3 to fall into the flexible bag of the collecting box 4 located at the bottom of the collecting hopper 3 through the discharge pipe 30; before the transfer conveyor belt 5 transfers the collecting box 4 from the bottom of the bracket 1 to the outside of the bracket 1, the two sliding cylinders 302 drive the baffle plate 301 to slide out of the discharge pipe 30 to block the discharge pipe 30, thereby limiting the biochemical sludge remaining in the subsequent collecting hopper 3 from falling into the transfer conveyor belt 5, thereby reducing the situation where the biochemical sludge pollutes the transfer conveyor belt 5.

[0040] Reference Figure 1 and Figure 5 , an annular plate 41 is connected around the outer periphery of the top port of the collection box 4, and a number of limiting suction cups 42 are evenly installed on the annular plate 41, and the suction cup openings of the limiting suction cups 42 are vertically arranged upwards, and the limiting suction cups 42 are all connected to the vacuum generator. After the flexible bag is subsequently put into the collection box 4, the top of the flexible suction cup is turned outward onto the annular plate 41, and the vacuum suction cup on the annular plate 41 is used to hold the turned-out part of the flexible bag, so as to achieve the limiting fixation of the bag opening area at the top of the flexible bag, so that the flexible bag can always remain in an open state, which is conducive to the subsequent biochemical sludge in the aggregate hopper 3 to fall into the collection box 4 better.

[0041] Reference Figure 5 and Figure 6A push plate 43 is also supported in the collection box 4; a lifting drive member is also provided in the collection box 4 corresponding to the push plate 43. The lifting drive member includes four lifting cylinders 44, which are supported on two opposite outer sides of the collection box 4 in a group of two; the lifting cylinders 44 are vertically upwardly arranged, and the top of the piston rod of the lifting cylinder 44 is connected to a connecting rod 441; the connecting rod 441 is arranged parallel to the lifting cylinder 44, and the end of the connecting rod 441 away from the piston rod of the lifting cylinder 44 is welded to the side of the push plate 43.

[0042] Through the above arrangement, when the flexible bag in the collecting box 4 is filled with biochemical sludge, the bag opening at the top of the flexible bag is tied and tightened, the lifting cylinder 44 is used to drive the push plate 43 to move the flexible bag upward until the flexible bag is pushed upward from the collecting box 4 to the outside of the collecting box 4, so as to facilitate the subsequent removal of the flexible bag from the collecting box 4 by a handling robot or other handling equipment; at the same time, after the pushing plate 43 moves up to the outside of the collecting box, the connecting rods 441 on both sides of the pushing plate 43 can be used to temporarily limit the flexible bag on the pushing plate 43 at this time, so as to prevent it from sliding off the pushing plate 43 after it moves on the pushing plate 43 to the top opening of the collecting box 4, so as to facilitate the handling robot and other handling equipment to better move it away from the pushing plate 43.

[0043] The implementation principle of the embodiment of the present application is: Biochemical sludge dehydration treatment: The biochemical sludge to be treated is introduced into the snail stacking machine 2, and the snail stacking machine 2 is used to dehydrate the biochemical sludge.

[0044] Biochemical sludge is bagged: after the dehydrated biochemical sludge is discharged from the output end of the screw stacking machine 2, it falls into the flow plate 21, slides out to the collecting funnel 3 through the flow plate 21, and finally falls into the flexible bag of the collecting box 4 located at the bottom of the collecting funnel 3 through the collecting funnel 3; during this period, the first sliding drive member drives the air knife 31 to move back and forth in the direction of approaching or moving away from the screw stacking machine 2, so as to continuously blow compressed air into the flow plate 21 and the collecting funnel 3, so as to reduce the residual biochemical sludge adhering to the flow plate 21 and the collecting funnel 3.

[0045] Flexible bag packaging: After the flexible bag is filled with biochemical sludge, the baffle plate 301 is driven by the second sliding drive to slide into the discharge pipe 30 to block the discharge pipe 30; then the collection box 4 is transferred to the outside of the bracket 1 through the transfer conveyor belt 5; after the contact limiting suction cup 42 holds the outward-turned part of the flexible bag, the top bag opening of the flexible bag is manually tied and tightened.

[0046] Flexible bag transfer: The push plate 43 is driven upward by the lifting cylinder 44 to push the flexible bag in the collection box 4 out of the collection box 4, and is moved away from the push plate 43 by a handling robot.

[0047] In the present application, after the biochemical sludge is dehydrated by the spiral stacking machine 2, it is placed in a flexible bag for packaging, which is convenient for the subsequent storage or transportation of the biochemical sludge and helps to reduce the leakage of the biochemical sludge due to high moisture content.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A printing and dyeing wastewater biochemical sludge treatment system, characterized by: The invention comprises a support (1), a snail stacking machine (2), a collecting hopper (3), a collecting box (4) and a transfer conveyor belt (5); the snail stacking machine (2) and the collecting hopper (3) are both supported on the top of the support (1); the snail stacking machine (2) is used for dehydrating biochemical sludge; the collecting hopper (3) is located below the discharge end of the snail stacking machine (2) and is used for receiving the biochemical sludge output from the output end of the snail stacking machine (2); One end of the transfer conveyor belt (5) is located at the bottom of the support (1) and is arranged opposite to the collecting funnel (3), and the other end of the transfer conveyor belt (5) extends to the outside of the support (1); the collecting box (4) is located on the transfer conveyor belt (5), and a flexible bag is provided inside the collecting box (4).

2. A printing and dyeing wastewater biochemical sludge treatment system according to claim 1, characterized in that: A flow plate (21) is supported at the bottom of the output end of the screw stacking machine (2), and the flow plate (21) extends downwardly and obliquely in a direction away from the screw stacking machine (2), and the inclined lower end of the flow plate (21) extends to above the top opening of the collecting funnel (3).

3. A printing and dyeing wastewater biochemical sludge treatment system according to claim 2, characterized in that: A wind knife (31) is also supported above the aggregate hopper (3), and the wind knife (31) has an air outlet arranged vertically downward.

4. A printing and dyeing wastewater biochemical sludge treatment system according to claim 3, characterized in that: A first sliding drive component is provided on the bracket (1) corresponding to the wind knife (31); the first sliding drive component is drivingly connected to the wind knife (31) and is used to drive the wind knife (31) to slide in a horizontal direction toward or away from the screw stacking machine (2).

5. A printing and dyeing wastewater biochemical sludge treatment system according to claim 1, characterized in that: The bottom of the collecting funnel (3) is vertically connected to a discharge pipe (30), and a baffle plate (301) is slidably inserted on the outside of the discharge pipe (30), and the baffle plate (301) is used to block the discharge pipe (30). A second sliding drive component is also provided on the outside of the discharge pipe (30), and the second sliding drive component is drivingly connected to the baffle plate (301) and is used to drive the baffle plate (301) to slide in the horizontal direction.

6. A printing and dyeing wastewater biochemical sludge treatment system according to claim 1, characterized in that: An annular plate (41) is connected around the outer periphery of the top end of the collection box (4), and a plurality of limiting suction cups (42) are evenly supported on the annular plate (41).

7. A printing and dyeing wastewater biochemical sludge treatment system according to claim 5, characterized in that: A material pushing plate (43) is supported inside the collection box (4), and a lifting drive member is provided outside the collection box (4). The lifting drive member is drivingly connected to the material pushing plate (43) and is used to drive the material pushing plate (43) to move up and down vertically.

8. A printing and dyeing wastewater biochemical sludge treatment system according to claim 7, characterized in that: The lifting assembly comprises a plurality of lifting cylinders (44), wherein the plurality of lifting cylinders (44) are respectively vertically supported on opposite sides of the collecting box (4), wherein the piston rods of the lifting cylinders (44) are all connected to connecting rods (441), wherein the connecting rods (441) are arranged parallel to the lifting cylinders (44), and the bottom ends of the connecting rods (441) are connected to the side of the pushing plate (43).

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