A module device for adjusting the distance between inclined plates

Abstract

The application belongs to the technical field of sewage treatment equipment, and discloses a module device capable of adjusting the distance between inclined plates, which comprises a sedimentation tank, two groups of channels are symmetrically arranged about the middle part of the sedimentation tank and are fixed in the sedimentation tank, one end of the channel penetrates through the side wall of the sedimentation tank and is fixed, a plurality of inclined plates are arranged between the two groups of channels in the sedimentation tank, a sewage pipe is fixed and communicated with the bottom of the sedimentation tank, an electromagnetic valve is arranged in the sewage pipe, a distance adjusting mechanism for driving the plurality of inclined plates to move and keeping the distance between the plurality of inclined plates equal after the plurality of inclined plates move a distance is arranged on the sedimentation tank, and the distance adjusting mechanism comprises an adjusting assembly and a lifting assembly, the adjusting assembly comprises a fixed block, a sliding rod, an adjusting plate, a limiting column and an adjusting groove. According to the application, the synchronous movement of the plurality of inclined plates is realized through the distance adjusting mechanism, the complicated operation of the prior art is avoided, and the efficiency of the inclined plate distance adjustment is improved.

Description

Technical Field

[0001] This utility model relates to the field of sewage treatment equipment technology, and in particular to a modular device with adjustable inclined plate spacing. Background Technology

[0002] As a modular device, the inclined plate sedimentation tank separates the water (or wastewater) to be treated from the settled sludge in the shallow sedimentation layer. According to the direction of the force generated by their mutual movement, it can be divided into three different separation methods: co-current flow, counter-current flow, and lateral flow.

[0003] Chinese utility model patent CN215841775U discloses a modular device for adjusting the spacing of inclined plates, including an outer frame. The side wall of the outer frame has evenly arranged distance adjustment holes, and the front end of each evenly arranged distance adjustment hole is fixedly provided with an inclined plate support rod. The front side wall of the outer frame is fixedly provided with evenly arranged wavy inclined plates.

[0004] In the process of adjusting the distance between the inclined plates, the aforementioned modular device for adjusting the inclined plate spacing requires separating and connecting each inclined plate with the distance adjustment hole one by one, which is cumbersome and not conducive to improving the efficiency of adjusting the inclined plate spacing. Utility Model Content

[0005] To address the aforementioned problems, this invention provides a modular device with adjustable inclined plate spacing.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a modular device with adjustable inclined plate spacing, comprising a sedimentation tank, wherein two sets of channels symmetrically arranged about the middle of the sedimentation tank are fixed inside the sedimentation tank, one end of each channel penetrates through the side wall of the sedimentation tank and is fixed thereon, and multiple inclined plates located between the two sets of channels are arranged inside the sedimentation tank, a sewage pipe is fixed and connected to the bottom of the sedimentation tank, an electromagnetic valve is arranged inside the sewage pipe, and a distance adjustment mechanism is provided on the sedimentation tank for driving multiple inclined plates to move and maintaining the distance between multiple inclined plates equal after the multiple inclined plates have moved a certain distance.

[0007] By adopting the above technical solution, multiple inclined plates are driven to move through a distance adjustment mechanism. When the inclined plates move to the required distance, the distance between the inclined plates is equal, which eliminates the cumbersome operation of the existing technology and improves the efficiency of inclined plate distance adjustment.

[0008] Furthermore, the distance adjustment mechanism includes adjustment components, which are provided in two sets. Each set of adjustment components includes a fixed block fixed to the inclined plate, a slide rod fixed in the sedimentation tank and slidably connected to the fixed block, an adjustment plate slidably disposed in the sedimentation tank, and a limiting post rotatably mounted on the fixed block. An adjustment groove is provided through the side wall of the adjustment plate, which slidably engages with the limiting post. The number of fixed blocks, slide rods, limiting posts, and adjustment grooves are all equal and their positions correspond one-to-one. The slopes of the multiple adjustment grooves decrease sequentially, and the distances between the tops of the multiple adjustment grooves and the bottoms of the adjustment plate are all equal. The distance adjustment mechanism also includes a lifting component for driving the adjustment plate to rise and fall.

[0009] By adopting the above technical solution, the lifting assembly drives the adjusting plate to rise. Since the limiting post is rotatably mounted on the fixed block, and the fixed block is slidably connected to the fixed sliding rod, the slopes of the multiple adjusting grooves decrease sequentially. The distances between the tops of the multiple adjusting grooves and the bottoms of the adjusting plate are all equal, causing the limiting post, the fixed block fixed to the limiting post, and the inclined plate connected to the fixed block to all move, thereby increasing the distance between the multiple inclined plates. Similarly, the lifting assembly drives the adjusting plate to fall, causing the limiting post, the fixed block fixed to the limiting post, and the inclined plate connected to the fixed block to all move and reset, thereby reducing the distance between the multiple inclined plates.

[0010] Furthermore, the top of the sedimentation tank is fixed with an installation frame, and the lifting assembly includes an electric hydraulic cylinder fixed to the top of the installation frame and a connecting rod fixed to the end of the push rod of the electric hydraulic cylinder. The connecting rod passes through the top of the channel and is slidably connected. The lower end of the connecting rod is fixed to the top of the adjusting plate. The number of lifting assemblies is equal to the number of adjusting assemblies, and their positions correspond one-to-one.

[0011] By adopting the above technical solution, after the electric hydraulic cylinder works, the end of its push rod is extended or shortened, thereby causing the connecting rod connected to the electric hydraulic cylinder and the adjusting plate connected to the connecting rod to rise and fall.

[0012] Furthermore, a pretreatment platform is fixed to the side wall of the sedimentation tank. A flocculation tank, a sludge tank, and a mixing tank are opened on the top of the pretreatment platform. A fixing frame is fixed to the top of the pretreatment platform. A pretreatment mechanism is provided on the pretreatment platform. The pretreatment mechanism includes a stirring assembly. The stirring assembly includes a vertical rod rotatably mounted on the fixing frame, a worm gear fixedly sleeved on the vertical rod, and a first stirring blade fixed to the side wall of the vertical rod. There are three sets of stirring assemblies. The three sets of first stirring blades are respectively located in the flocculation tank, the sludge tank, and the mixing tank. The pretreatment mechanism also includes a drive assembly for driving the three sets of vertical rods to rotate synchronously and a conveying assembly for conveying the treated wastewater.

[0013] By adopting the above technical solution, in the process of wastewater pretreatment, wastewater is first injected into a mixing tank, and coagulant is added to the mixing tank. After a period of mixing, the reacted wastewater is transported to a sludge tank by a first feed pump, and sludge from the sedimentation tank is transported to the sludge tank by an external sludge pump to mix with the wastewater (making the floc particles larger and denser, which is conducive to improving the sedimentation speed of the flocs). Finally, the wastewater in the sludge tank is discharged into the flocculation tank by a second feed pump, and flocculant is injected into the flocculation tank at the same time. Through wastewater pretreatment, the sedimentation speed of wastewater is improved. In addition, the drive assembly drives three sets of vertical rods to rotate, thereby driving three sets of first stirring blades to rotate. The three sets of first stirring blades can stir the wastewater in the flocculation tank, sludge tank and mixing tank respectively, improving the mixing speed of pretreatment and improving the wastewater treatment speed of the device.

[0014] Furthermore, the drive assembly includes a worm rotatably mounted on a fixed frame and meshing with all three sets of worm gears, and a drive motor fixed on the fixed frame and driving the worm to rotate.

[0015] By adopting the above technical solution, after the drive motor works, it drives the worm to rotate, which causes the three sets of worm wheels that are meshed with the worm and the vertical rods that are connected to the three sets of worm wheels to rotate, thereby achieving the purpose of stirring the sewage mixture.

[0016] Furthermore, the feeding assembly includes a first feed pump fixed to the side wall of the pretreatment platform, a second feed pump fixed to the side wall of the pretreatment platform, and a third feed pump fixed to the side wall of the pretreatment platform. The feed end of the first feed pump extends into the mixing tank, and the discharge end of the first feed pump and the feed end of the second feed pump both extend into the sludge tank. The discharge end of the second feed pump and the feed end of the third feed pump both extend into the flocculation tank.

[0017] By adopting the above technical solution, after the first pump starts working, it extracts the wastewater mixture in the mixing tank and discharges it into the sludge tank through its outlet end. After the second pump starts working, it extracts the wastewater mixture in the sludge tank and discharges it into the flocculation tank through its outlet end, ensuring the normal conveying operation of the device.

[0018] Furthermore, a curing tank is provided on the top of the pretreatment platform, a crossbar is rotatably installed in the curing tank, curing stirring blades are fixed on the side wall of the crossbar, a stirring motor that drives the crossbar to rotate is fixed on the pretreatment platform, a fourth material pump is fixed on the side wall of the pretreatment platform, the discharge end of the third material pump and the inlet end of the fourth material pump both extend into the curing tank, and the discharge end of the fourth material pump extends into the sedimentation tank and is located below the inclined plate.

[0019] By adopting the above technical solution, the wastewater mixture is extracted from the flocculation tank through the feed end of the third feed pump and discharged into the maturation tank through the discharge end of the third feed pump. At the same time, after the stirring motor starts working, it drives the crossbar to rotate, and the maturation stirring blades start to rotate and stir and mature the wastewater mixture. Finally, the matured wastewater mixture is extracted from the maturation tank through the discharge end of the fourth feed pump and discharged into the sedimentation tank through the feed end of the fourth feed pump for wastewater sedimentation.

[0020] In summary, the present invention has the following beneficial effects: In this application, by setting a distance adjustment mechanism, multiple inclined plates can move synchronously, eliminating the cumbersome operation of the prior art and improving the efficiency of adjusting the spacing between the inclined plates. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0022] Figure 2 This is a cross-sectional schematic diagram of an embodiment of the present invention used to highlight the internal structure of the settling tank;

[0023] Figure 3 This is a cross-sectional schematic diagram of an embodiment of the present invention to highlight the connection mechanism between the limiting post and the adjusting groove;

[0024] Figure 4 This is a schematic diagram illustrating the connection structure between the slide rod and the fixed block in an embodiment of this utility model;

[0025] Figure 5 yes Figure 3 Enlarged diagram of point A in the middle.

[0026] In the diagram: 1. Sedimentation tank; 2. Channel; 3. Inclined plate; 4. Sewage pipe; 5. Distance adjustment mechanism; 51. Adjustment component; 511. Fixing block; 512. Sliding rod; 513. Adjustment plate; 514. Limiting post; 515. Adjustment groove; 52. Lifting component; 521. Electric hydraulic cylinder; 522. Connecting rod; 6. Pretreatment mechanism; 61. Agitation component; 611. Vertical rod; 612. Worm gear; 613. First 62. Stirring blade; 621. Drive assembly; 622. Worm gear; 623. Drive motor; 64. Material conveying assembly; 651. First material pump; 662. Second material pump; 673. Third material pump; 7. Mounting frame; 8. Pretreatment platform; 9. Flocculation tank; 10. Sludge tank; 11. Mixing tank; 12. Fixing frame; 13. Maturation tank; 14. Crossbar; 15. Maturation stirring blade; 16. Fourth material pump; 17. Stirring motor. Detailed Implementation

[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0028] like Figure 1-5 As shown in the illustration, this application discloses a modular device with adjustable inclined plate spacing, including a sedimentation tank 1, a distance adjustment mechanism 5, and a pretreatment mechanism 6. Two sets of channels 2 symmetrically arranged about the center of the sedimentation tank 1 are fixed inside the sedimentation tank 1. A mounting frame 7 is fixed to the top of the sedimentation tank 1, and a pretreatment platform 8 is fixed to the side wall of the sedimentation tank 1. A flocculation tank 9 and a sludge tank 10 are opened on the top of the pretreatment platform 8. A mixing tank 11, a fixing frame 12, and a maturation tank 13 are all opened on the top of the pretreatment platform 8. One end of each channel 2 penetrates the side wall of the sedimentation tank 1 and is fixed therein. Multiple inclined plates 3 located between the two sets of channels 2 are arranged inside the sedimentation tank 1. A drain pipe 4 is fixed to and connected to the bottom of the sedimentation tank 1, and an electromagnetic valve is installed inside the drain pipe 4. Multiple inclined plates 3 are moved by the distance adjustment mechanism 5. When the inclined plates 3 move to the required distance, the spacing between the inclined plates 3 is equal, which eliminates the cumbersome operation of the existing technology and improves the efficiency of the spacing adjustment of the inclined plates 3 (the specific working principle and process of the inclined plate sedimentation tank are existing technologies and will not be described in detail here).

[0029] A distance adjustment mechanism 5 is installed on the sedimentation tank 1. This mechanism drives multiple inclined plates 3 to move and maintains equal distances between them after they have moved a certain distance. The distance adjustment mechanism 5 includes an adjustment component 51 and a lifting component 52. The adjustment component 51 includes a fixed block 511, a sliding rod 512, an adjustment plate 513, a limiting post 514, and an adjustment groove 515. Two sets of adjustment components are provided. The fixed block 511 is fixed to the inclined plate 3. The sliding rod 512 is fixed inside the sedimentation tank 1 and slidably connected to the fixed block 511. The adjustment plate 513 is slidably disposed inside the sedimentation tank 1. The limiting post 514 is rotatably mounted on the fixed block 511. An adjustment groove 515, which slidably engages with the limiting post 514, is provided through the side wall of the adjustment plate 513. The number of fixed blocks 511, sliding rods 512, limiting posts 514, and adjusting grooves 515 are all equal and their positions correspond one-to-one. The slopes of the multiple adjusting grooves 515 decrease sequentially, and the distances between the tops of the multiple adjusting grooves 515 and the bottoms of the adjusting plate 513 are all equal. The adjusting plate 513 is driven to rise by the lifting assembly 52. ​​Since the limiting posts 514 are rotatably mounted on the fixed blocks 511, the fixed blocks 511 are slidably connected to the fixed sliding rods 512. The slopes of the multiple adjusting grooves 515 decrease sequentially, and the distances between the tops of the multiple adjusting grooves 515 and the bottoms of the adjusting plate 513 are all equal. This causes the limiting posts 514, the fixed blocks 511 fixed to the limiting posts 514, and the inclined plates 3 connected to the fixed blocks 511 to move, thereby increasing the distance between the multiple inclined plates 3. Similarly, the lifting assembly 52 drives the adjusting plate 513 to descend, causing the limiting post 514, the fixing block 511 fixed to the limiting post 514, and the inclined plate 3 connected to the fixing block 511 to move and reset, thereby reducing the distance between the multiple inclined plates 3.

[0030] The lifting assembly 52 is used to drive the adjusting plate 513 to rise and fall. The lifting assembly 52 includes an electric hydraulic cylinder 521 and a connecting rod 522. The electric hydraulic cylinder 521 is fixed to the top of the mounting bracket 7, and the connecting rod 522 is fixed to the push rod end of the electric hydraulic cylinder 521. The connecting rod 522 passes through the top of the channel 2 and is slidably connected. The lower end of the connecting rod 522 is fixed to the top of the adjusting plate 513. The number of lifting assemblies 52 is equal to the number of adjusting assemblies 51, and their positions correspond one-to-one. After the electric hydraulic cylinder 521 is working, its push rod end extends or shortens, thereby causing the connecting rod 522 connected to the electric hydraulic cylinder 521 and the adjusting plate 513 connected to the connecting rod 522 to both rise and fall.

[0031] The pretreatment mechanism 6 is mounted on the pretreatment platform 8 and includes a stirring assembly 61, a drive assembly 62, and a conveying assembly 63. The stirring assembly 61 includes a vertical rod 611, a worm gear 612, and a first stirring blade 613. The vertical rod 611 is movably mounted on a fixed frame 12. The worm gear 612 is fixedly sleeved on the vertical rod 611, and the first stirring blade 613 is fixed to the side wall of the vertical rod 611. Three sets of the stirring assembly 61 are provided, with the three sets of first stirring blades 613 located in the flocculation tank 9, the sludge tank 10, and the mixing tank 11, respectively. In the wastewater pretreatment process, wastewater is first injected into mixing tank 11, and coagulant is added to mixing tank 11. After a period of mixing, the reacted wastewater is transported to sludge tank 10 by first feed pump 631, and sludge from sedimentation tank 1 is transported to sludge tank 10 by external sludge pump to mix with wastewater (making the floc particles larger and denser, which is beneficial to improving the sedimentation speed of flocs). Finally, wastewater in sludge tank 10 is discharged to flocculation tank 9 by second feed pump 632, and flocculant is injected into flocculation tank 9 at the same time. Through wastewater pretreatment, the sedimentation speed of wastewater is improved. In addition, the drive assembly 62 drives three sets of vertical rods 611 to rotate, thereby driving three sets of first stirring blades 613 to rotate. The three sets of first stirring blades 613 can stir the wastewater in flocculation tank 9, sludge tank 10 and mixing tank 11 respectively, improving the mixing speed of pretreatment and improving the wastewater treatment speed of the device.

[0032] The drive assembly 62 is used to drive the three sets of vertical rods 611 to rotate synchronously. The drive assembly 62 includes a worm gear 621 and a drive motor 622. The worm gear 621 is rotatably mounted on the fixed frame 12 and meshes with all three sets of worm wheels 612. The drive motor 622 is fixed on the fixed frame 12 and drives the worm gear 621 to rotate. After the drive motor 622 is working, it drives the worm gear 621 to rotate, so that the three sets of worm wheels 612 that mesh with the worm gear 621 and the vertical rods 611 that are respectively connected to the three sets of worm wheels 612 all rotate, thereby achieving the purpose of stirring the sewage mixture.

[0033] The conveying assembly 63 is used to transport the treated wastewater. The conveying assembly 63 includes a first pump 631, a second pump 632, and a third pump 633. The first pump 631 is fixed to the side wall of the pretreatment platform 8, and its inlet end extends into the mixing tank 11. The second pump 632 and the third pump 633 are both fixed to the side wall of the pretreatment platform 8. The outlet end of the first pump 631 and the inlet end of the second pump 632 both extend into the sludge tank 10, and the outlet end of the second pump 632 and the inlet end of the third pump 633 both extend into the flocculation tank 9. After the first pump 631 operates, it extracts the wastewater mixture from the mixing tank 11 and discharges it into the sludge tank 10 through its outlet end. After the second pump 632 operates, it extracts the wastewater mixture from the sludge tank 10 and discharges it into the flocculation tank 9 through its outlet end, ensuring the normal conveying operation of the device.

[0034] A crossbar 14 is rotatably installed inside the curing tank 13, and curing stirring blades 15 are fixed to the side wall of the crossbar 14. A stirring motor 17 that drives the crossbar 14 to rotate is fixed on the pretreatment platform 8, and a fourth feed pump 16 is fixed to the side wall of the pretreatment platform 8. The discharge end of the third feed pump 633 and the feed end of the fourth feed pump 16 both extend into the curing tank 13, and the discharge end of the fourth feed pump 16 extends into the sedimentation tank 1 and is located below the inclined plate 3. The wastewater mixture is drawn from the flocculation tank 9 through the feed end of the third feed pump 633 and discharged into the maturation tank 13 through the discharge end of the third feed pump 633. At the same time, after the stirring motor 17 starts working, it drives the crossbar 14 to rotate, and the maturation stirring blade 15 starts to rotate and stirs and matures the wastewater mixture. Finally, the matured wastewater mixture is drawn out of the maturation tank 13 through the discharge end of the fourth feed pump 16 and discharged into the sedimentation tank 1 through the feed end of the fourth feed pump 16 for wastewater sedimentation.

[0035] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A modular device with adjustable inclined plate spacing, comprising a sedimentation tank (1), characterized in that: The sedimentation tank (1) is fixed with two sets of channels (2) symmetrically arranged about the middle of the sedimentation tank (1). One end of the channel (2) passes through the side wall of the sedimentation tank (1) and is fixed. The sedimentation tank (1) is provided with multiple inclined plates (3) located between the two sets of channels (2). The bottom of the sedimentation tank (1) is fixed and connected to a sewage pipe (4). The sewage pipe (4) is provided with an electromagnetic valve. The sedimentation tank (1) is provided with a distance adjustment mechanism (5) for driving multiple inclined plates (3) to move and keeping the distance between multiple inclined plates (3) equal after the multiple inclined plates (3) have moved a certain distance.

2. The modular device with adjustable inclined plate spacing according to claim 1, characterized in that: The distance adjustment mechanism (5) includes an adjustment assembly (51), which is provided in two sets. Each set of the adjustment assembly (51) includes a fixed block (511) fixed on the inclined plate (3), a slide rod (512) fixed in the sedimentation tank (1) and slidably connected to the fixed block (511), an adjustment plate (513) slidably disposed in the sedimentation tank (1), and a limiting post (514) rotatably mounted on the fixed block (511). The side wall of the adjustment plate (513) is provided with a limiting post. The adjusting groove (515) of the position post (514) is in sliding engagement with the adjusting groove (515). The number of the fixed block (511), the number of the slide rod (512), the number of the limiting post (514) and the number of the adjusting groove (515) are all equal and their positions correspond one-to-one. The slope of the multiple adjusting grooves (515) decreases sequentially. The distance between the top of the multiple adjusting grooves (515) and the bottom of the adjusting plate (513) is equal. The distance adjusting mechanism (5) also includes a lifting component (52) for driving the adjusting plate (513) to rise and fall.

3. The modular device with adjustable inclined plate spacing according to claim 2, characterized in that: The top of the sedimentation tank (1) is fixed with an installation frame (7). The lifting assembly (52) includes an electric hydraulic cylinder (521) fixed to the top of the installation frame (7) and a connecting rod (522) fixed to the end of the push rod of the electric hydraulic cylinder (521). The connecting rod (522) passes through the top of the channel (2) and is slidably connected. The lower end of the connecting rod (522) is fixed to the top of the adjusting plate (513). The number of lifting assemblies (52) is equal to the number of adjusting assemblies (51), and their positions correspond one-to-one.

4. The modular device with adjustable inclined plate spacing according to claim 1, characterized in that: A pretreatment platform (8) is fixed on the side wall of the sedimentation tank (1). A flocculation tank (9) is provided on the top of the pretreatment platform (8). A sludge tank (10) is provided on the top of the pretreatment platform (8). A mixing tank (11) is provided on the top of the pretreatment platform (8). A fixing frame (12) is fixed on the top of the pretreatment platform (8). A pretreatment mechanism (6) is provided on the pretreatment platform (8). The pretreatment mechanism (6) includes a stirring assembly (61). The stirring assembly (61) includes components rotatably mounted on the fixing frame (9). The pretreatment mechanism (6) includes a vertical rod (611) on the vertical rod (611), a worm gear (612) fixedly sleeved on the vertical rod (611), and a first stirring blade (613) fixed on the side wall of the vertical rod (611). The stirring assembly (61) is provided with three sets, and the three sets of first stirring blades (613) are respectively located in the flocculation tank (9), the sludge tank (10), and the mixing tank (11). The pretreatment mechanism (6) also includes a drive assembly (62) for driving the three sets of vertical rods (611) to rotate synchronously and a conveying assembly (63) for conveying the treated wastewater.

5. The modular device with adjustable inclined plate spacing according to claim 4, characterized in that: The drive assembly (62) includes a worm (621) rotatably mounted on the fixed frame (12) and meshing with three sets of worm gears (612), and a drive motor (622) fixed on the fixed frame (12) and driving the worm (621) to rotate.

6. The modular device with adjustable inclined plate spacing according to claim 5, characterized in that: The feeding assembly (63) includes a first feed pump (631) fixed to the side wall of the pretreatment platform (8), a second feed pump (632) fixed to the side wall of the pretreatment platform (8), and a third feed pump (633) fixed to the side wall of the pretreatment platform (8). The feed end of the first feed pump (631) extends into the mixing tank (11), the discharge end of the first feed pump (631) and the feed end of the second feed pump (632) both extend into the sludge tank (10), and the discharge end of the second feed pump (632) and the feed end of the third feed pump (633) both extend into the flocculation tank (9).

7. The modular device with adjustable inclined plate spacing according to claim 6, characterized in that: The pretreatment platform (8) has a curing tank (13) at the top. A crossbar (14) is rotatably installed in the curing tank (13). A curing stirring blade (15) is fixed on the side wall of the crossbar (14). A stirring motor (17) that drives the crossbar (14) to rotate is fixed on the pretreatment platform (8). A fourth material pump (16) is fixed on the side wall of the pretreatment platform (8). The discharge end of the third material pump (633) and the inlet end of the fourth material pump (16) both extend into the curing tank (13). The discharge end of the fourth material pump (16) extends into the sedimentation tank (1) and is located below the inclined plate (3).

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