Sewage treatment sludge discharge device and method

Abstract

The invention discloses a sewage treatment and sludge discharge device and method, and belongs to the technical field of sewage treatment and sludge discharge devices.The sewage treatment and sludge discharge device comprises a sewage pool, an upper cover is clamped to the upper surface of the sewage pool, a swing mechanism is arranged on the upper cover, and drainage mechanisms are fixedly installed on the inner walls of the four sides of the sewage pool; the sewage treatment device comprises a sewage tank, the outer walls of the four sides of the sewage tank are fixedly connected with connecting frames, each connecting frame is internally provided with a filtering mechanism and a spraying mechanism, and the outer wall of each connecting frame is fixedly connected with a cleaning mechanism. According to the sludge discharging device, sludge in a sewage pool can be rapidly and effectively discharged, the tedious step that most of existing sludge discharging devices need to pump sludge from one area through a sludge pump and then pump the sludge from the other area is solved, the problem that sludge contains sewage is solved, and subsequent sludge collection is facilitated.

Description

Technical Field

[0001] The present invention belongs to the technical field of sewage treatment sludge discharge devices, and in particular relates to a sewage treatment sludge discharge device and method. Background Art

[0002] With the continuous development of science and technology, people have higher and higher requirements for the manufacturing process of sewage treatment sludge discharge devices. Most of the sewage treatment devices in the prior art need to use a sludge pump to pump sludge from one area and then switch to another area for sludge pumping. During the sludge pumping process, the position of the sludge pump is frequently changed, which not only increases the cumbersome operating steps, but also reduces the sludge discharge efficiency. Secondly, the mud pumped out by the sludge pump contains a certain amount of sewage, and the sewage in the sludge cannot be discharged, which is not conducive to the subsequent sludge collection. In view of this, it is necessary to propose a sewage treatment sludge discharge device that can quickly and efficiently discharge the mud and filter the sewage in the sludge. Summary of the invention

[0003] In view of the problems existing in the prior art, the present invention provides a sewage treatment sludge discharge device and method, which has the advantages of discharging sludge and sewage contained in the sludge at the same time, and solves the problem that most of the existing sewage treatment devices need to use a sludge pump to pump sludge from one area and then switch to another area for sludge pumping operation. During the sludge pumping process, the position of the sludge pump is frequently changed, which not only increases the cumbersome operating steps, but also reduces the sludge discharge efficiency. Secondly, the mud pumped out by the sludge pump contains a certain amount of sewage, and the sewage in the sludge cannot be discharged, which is not conducive to subsequent sludge collection.

[0004] The present invention is implemented as follows: a sewage treatment sludge discharge device includes a sewage pool, an upper cover is clamped on the upper surface of the sewage pool, a swing mechanism is arranged on the upper cover, drainage mechanisms are fixedly installed on the four inner walls of the sewage pool, and connecting frames are fixedly connected to the four outer walls of the sewage pool. The drainage mechanism on each side corresponds to the connecting frame on each side, and a filtering mechanism and an injection mechanism are arranged in each connecting frame. The injection mechanism is fixedly connected to the swing mechanism through the sewage pool, and a cleaning mechanism is fixedly connected to the outer wall of each connecting frame.

[0005] As a preferred embodiment of the present invention, the drainage mechanism includes a first sewage pipe, a water pump and a second sewage pipe, the first sewage pipe and the water pump are both located in the sewage pool and the water pump is fixedly connected to the inner wall of the sewage pool, the first sewage pipe and the second sewage pipe are fixedly connected through the water pump, the second sewage pipe is L-shaped, and the water outlet end of the second sewage pipe is aligned with the connecting frame.

[0006] As a preferred embodiment of the present invention, the swing mechanism includes a rotating cylinder, the outer sleeve of the rotating cylinder is provided with a waterproof shell, the waterproof shell is fixedly connected to the inner wall of the upper cover, the rotating shaft of the rotating cylinder extends out of the upper cover and is fixedly connected to a pulley, the middle part of the upper cover is rotatably connected to a stirring rod, the lower end of the stirring rod extends into the sewage pool, and a plurality of water outlets are opened on the lower surface of the lowest rod body of the stirring rod.

[0007] As a preferred embodiment of the present invention, the upper end of the stirring rod extends out of the upper cover, the pulley is connected to the upper end of the stirring rod through a transmission belt, a cross swing disk is fixedly connected to the upper surface of the stirring rod, and limiting grooves are provided at the four corners of the cross swing disk.

[0008] As a preferred embodiment of the present invention, the injection mechanism includes a connecting pipe, a high-pressure water pump is fixedly installed on the connecting pipe, the connecting pipe and the high-pressure water pump are both located in a connecting frame, the outer end of the connecting pipe is fixedly connected to a injection pipe, the injection pipe is located in the sewage pool, and a plurality of high-pressure nozzles are linearly arranged and obliquely downwardly arranged on the injection pipe, a hose is fixedly connected to the middle of the injection pipe, and the hose is fixedly connected to the upper surface of the rod body located on the lowermost side.

[0009] As a preferred embodiment of the present invention, the filtering mechanism includes two partitions, the two partitions are respectively located on both sides of the connection frame, the two partitions are fixedly connected by a dredging plate, and a plurality of drainage gaps are spaced apart on both sides of the dredging plate.

[0010] As a preferred embodiment of the present invention, a filter plate is arranged above the dredging plate, and a limiting rod is fixedly installed on the upper surface of each of the partitions. The filter plate slides on the outer surfaces of two limiting rods, and a spring is sleeved on the outside of each of the limiting rods. Both ends of the spring are fixedly connected to the upper surface of the partition and the lower surface of the filter plate respectively.

[0011] As a preferred embodiment of the present invention, the cleaning mechanism includes a fixed frame, which is fixedly mounted on the outer wall of the connecting frame, straight slide grooves are provided at both ends of the inner side of the fixed frame, and an arc-shaped slide groove is provided in the middle part of the inner side of the fixed frame, the straight slide groove is connected with the arc-shaped slide groove, a slider is slidably arranged in the fixed frame, a connecting rod is fixedly connected to the upper surface of the slider, and the upper end of the connecting rod slides in the limit groove.

[0012] As a preferred embodiment of the present invention, a movable groove is opened on the inner side of the sliding block, an L-shaped rod is slidably connected in the movable groove, a scraper strip is fixedly connected to one end of the L-shaped rod, and the L-shaped rod and the scraper strip are both located in a connecting frame.

[0013] A method for treating a sewage sludge discharge device, the method comprising the following steps: S1. Connect the device to an external power source, start the rotary cylinder, the water pump and the high-pressure water pump through the control system, and pump the sewage in the sewage pool into the connection frame under the drive of the water pump. During this process, the sewage is filtered by the filter plate and enters the connection frame through the drainage gap; S2. The sewage entering the connection frame is pumped into the injection pipe under the drive of the high-pressure water pump, and finally sprayed out through the high-pressure nozzle and the hose; the sewage sprayed out of the high-pressure nozzle can disperse the sludge on the bottom wall of the sewage pool, and the sewage sprayed out of the hose enters the stirring rod at the bottom and is ejected through the water outlet; under the swinging action of the stirring rod, the range of sewage flushing the bottom of the sewage pool is expanded, the efficiency of dispersing sludge is improved, and the sludge is prevented from being accumulated at the bottom for a long time, which is not conducive to the subsequent drainage mechanism to discharge it; S3, driven by the rotating cylinder, drives the pulley to rotate, and with the help of the transmission belt, synchronously drives the stirring rod and the cross swing plate to swing within the set angle range; the swing of the stirring rod stirs the sewage in the sewage pool, and during the swinging of the cross swing plate, drives the slider fixedly connected to the connecting rod to slide left and right in the fixed frame. When the L-shaped rod moves to the arc slide groove, the L-shaped rod synchronously drives the scraper bar to move downward under the action of the movable groove, and the filter plate moves downward under the extrusion of the scraper bar, so that the dredging needle on the dredging plate corresponds to the mesh on the filter plate one by one, thereby dredging the filter plate. In this process, the two springs are compressed, and when the cross swing plate drives the connecting rod to move left or right, the L-shaped rod drives the scraper bar to move upward under the limit of the straight slide groove, and the filter plate is reset under the action of the two springs. After that, the movement of the scraper bar can scrape the silt accumulated on the filter plate into the two ends of the connecting frame for collection; S4. The sewage in the sewage pool is pumped out cyclically, the sludge therein is filtered, and the bottom of the sewage pool is washed with the filtered sewage to avoid sludge accumulation. This operation can quickly and effectively discharge the sludge in the sewage pool, solving the cumbersome steps of most existing sludge discharge equipment, which requires the use of a sludge pump to pump sludge from one area and then switch to another area to pump sludge.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can spray the filtered sewage to the bottom of the sewage pool through the setting of the injection mechanism, so as to disperse the sludge at the bottom of the sewage pool; and the setting of the water outlet enables the filtered sewage to expand the range of dispersing the sludge at the bottom of the sewage pool under the action of the swinging stirring rod, thereby improving the degree of fusion of sewage and sludge, and avoiding the sludge from being accumulated at the bottom of the sewage pool for a long time, which is not conducive to the subsequent discharge of sludge.

[0015] 2. The present invention enables the L-shaped rod to move up and down in the connecting frame through the arrangement of straight slide grooves, arc-shaped slide grooves and movable grooves, thereby driving the scraper bar to move. When the scraper bar moves downward, it will squeeze the filter plate, and under the coordinated action of two springs and the dredging plate, it will have a dredging effect on the filter plate. At the same time, under the swing of the cross swing plate, the scraper bar slides on the upper surface of the filter plate, scraping off the sludge on the upper surface of the filter plate, which is beneficial to the collection of sludge.

[0016] 3. The present invention can cyclically pump out the sewage in the sewage pool, filter the sludge therein, and then use the filtered sewage to rinse the bottom of the sewage pool, thereby avoiding sludge accumulation, through the coordinated cooperation of the drainage mechanism, the swing mechanism, the injection mechanism, the filtering mechanism and the cleaning mechanism; such operation can quickly and effectively discharge the sludge in the sewage pool, which not only solves the cumbersome steps of most existing sludge discharge equipment that requires a sludge pump to pump sludge from one area and then switch to another area to pump sludge, but also solves the problem of sludge containing sewage, which facilitates subsequent sludge collection operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the top view of the structure of the present invention; Figure 3 For the present invention Figure 2 3D schematic diagram of the AA section structure; Figure 4 It is an exploded view of a first partial structure of the present invention; Figure 5 It is an exploded view of the local swing mechanism of the present invention; Figure 6 It is a three-dimensional schematic diagram of a first partial structure of the present invention; Figure 7 It is an exploded view of a second partial structure of the present invention; Figure 8 It is a three-dimensional schematic diagram of the filtering mechanism of the present invention; Fig. 9 It is a three-dimensional schematic diagram of the cleaning mechanism of the present invention; Fig.10 For the present invention Fig. 9 A magnified view of the local structure.

[0018] In the figure: 1, sewage pool; 2, upper cover; 3, drainage mechanism; 301, first sewage pipe; 302, water pump; 303, second sewage pipe; 4, swing mechanism; 401, rotating cylinder; 402, pulley; 403, transmission belt; 404, stirring rod; 4041, water outlet; 405, cross swing plate; 4051, limit groove; 5, connecting frame; 6, injection mechanism; 601, connecting pipe; 602, high-pressure water pump; 603 , injection pipe; 604, high-pressure nozzle; 905, hose; 7, filtering mechanism; 701, partition; 702, dredging plate; 7021, drainage gap; 703, filtering plate; 704, limiting rod; 705, spring; 8, cleaning mechanism; 801, fixed frame; 8011, straight slide groove; 8012, arc slide groove; 802, slider; 8021, movable groove; 803, connecting rod; 804, L-shaped rod; 805, scraper. DETAILED DESCRIPTION

[0019] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0020] The structure of the present invention is described in detail below in conjunction with the accompanying drawings.

[0021] like Figures 1 to 3 As shown, a sewage treatment sludge discharge device provided by an embodiment of the present invention includes a sewage pool 1, an upper cover 2 is clamped on the upper surface of the sewage pool 1, a swing mechanism 4 is arranged on the upper cover 2, drainage mechanisms 3 are fixedly installed on the four inner walls of the sewage pool 1, and connecting frames 5 are fixedly connected to the four outer walls of the sewage pool 1. The drainage mechanism 3 on each side corresponds to the connecting frame 5 on each side, and a filtering mechanism 7 and an injection mechanism 6 are arranged in each connecting frame 5. The injection mechanism 6 is fixedly connected to the swing mechanism 4 through the sewage pool 1, and a cleaning mechanism 8 is fixedly connected to the outer wall of each connecting frame 5.

[0022] like Figure 1 , Figure 4 As shown, the drainage mechanism 3 includes a first sewage pipe 301, a water pump 302 and a second sewage pipe 303. The first sewage pipe 301 and the water pump 302 are both located in the sewage pool 1 and the water pump 302 is fixedly connected to the inner wall of the sewage pool 1. The first sewage pipe 301 and the second sewage pipe 303 are fixedly connected through the water pump 302. The second sewage pipe 303 is L-shaped, and the water outlet end of the second sewage pipe 303 is aligned with the connecting frame 5.

[0023] In the present application, the provision of the drainage mechanism 3 facilitates the discharge of sewage in the sewage pool 1, which is beneficial to the subsequent sewage filtering operation.

[0024] like Figure 1 , Figure 5As shown, the swing mechanism 4 includes a rotating cylinder 401, the rotating cylinder 401 is provided with a waterproof shell, the waterproof shell is fixedly connected to the inner wall of the upper cover 2, the rotating shaft of the rotating cylinder 401 extends out of the upper cover 2 and is fixedly connected to a pulley 402, the middle part of the upper cover 2 is rotatably connected to a stirring rod 404, the lower end of the stirring rod 404 extends into the sewage pool 1, and a plurality of water outlets 4041 are provided on the lower surface of the lowest rod body of the stirring rod 404, the upper end of the stirring rod 404 extends out of the upper cover 2, the pulley 402 is transmission-connected to the upper end of the stirring rod 404 through a transmission belt 403, and a cross swing disk 405 is fixedly connected to the upper surface of the stirring rod 404, and limiting grooves 4051 are provided at the four corners of the cross swing disk 405.

[0025] In the present application, by setting the rotating cylinder 401, the stirring rod 404 and the cross swing plate 405 can be driven to swing at the same time. The swing of the stirring rod 404 stirs the sewage, which is convenient for the subsequent discharge of sludge in the sewage; and the setting of the water outlet 4041 enables the filtered sewage to expand the scope of the sludge at the bottom of the sewage pool 1 under the action of the swinging stirring rod 404, thereby improving the degree of fusion of sewage and sludge, and avoiding the sludge from being accumulated at the bottom of the sewage pool 1 for a long time, which is not conducive to the subsequent discharge efficiency of the sludge; the setting of the cross swing plate 405 enables it to synchronously drive the four cleaning mechanisms 8 to operate, which not only improves the cleaning efficiency of the filter plate 703, but also improves the sludge discharge efficiency.

[0026] like Figure 1 , Figure 3 , Figure 6 , Figure 7 As shown, the injection mechanism 6 includes a connecting pipe 601, on which a high-pressure water pump 602 is fixedly installed. The connecting pipe 601 and the high-pressure water pump 602 are both located in the connecting frame 5. The outer end of the connecting pipe 601 is fixedly connected to a injection pipe 603, and the injection pipe 603 is located in the sewage pool 1. A plurality of high-pressure nozzles 604 are linearly arranged and obliquely downwardly arranged on the injection pipe 603. A hose 905 is fixedly connected to the middle of the injection pipe 603, and the hose 905 is fixedly connected to the upper surface of the rod body located on the lowermost side.

[0027] In the present application, the setting of the injection mechanism 6 can spray the filtered sewage to the bottom of the sewage pool 1, which has the effect of dispersing the sludge at the bottom of the sewage pool 1, avoiding the sludge from agglomerating due to long-term accumulation, which is not conducive to the subsequent discharge of the sludge.

[0028] like Figure 1 , Figure 8As shown, the filtering mechanism 7 includes two partitions 701, and the two partitions 701 are respectively located on both sides of the connecting frame 5. The two partitions 701 are fixedly connected by a dredging plate 702. A number of drainage gaps 7021 are spaced apart on both sides of the dredging plate 702. A filter plate 703 is arranged above the dredging plate 702. A limiting rod 704 is fixedly installed on the upper surface of each partition 701. The filter plate 703 slides on the outer surfaces of the two limiting rods 704. A spring 705 is sleeved on the outside of each limiting rod 704. The two ends of the spring 705 are respectively fixedly connected to the upper surface of the partition 701 and the lower surface of the filter plate 703.

[0029] In the present application, the setting of the dredging plate 702 has the effect of dredging the filter plate 703, thereby preventing the filter plate 703 from being blocked and affecting the subsequent filtering efficiency.

[0030] like Figure 1 , Figure 5 , Figure 6 , Fig. 9 , Fig.10 As shown, the cleaning mechanism 8 includes a fixed frame 801, which is fixedly installed on the outer wall of the connecting frame 5. Straight slide grooves 8011 are provided at both ends of the inner side of the fixed frame 801, and an arc-shaped slide groove 8012 is provided in the middle of the inner side of the fixed frame 801. The straight slide groove 8011 is communicated with the arc-shaped slide groove 8012. A slider 802 is slidably arranged in the fixed frame 801. A connecting rod 803 is fixedly connected to the upper surface of the slider 802. The upper end of the connecting rod 803 slides in the limiting groove 4051. A movable groove 8021 is provided on the inner side of the slider 802. An L-shaped rod 804 is slidably connected in the movable groove 8021. A scraper strip 805 is fixedly connected to one end of the L-shaped rod 804. Both the L-shaped rod 804 and the scraper strip 805 are located in the connecting frame 5.

[0031] In the present application, by setting the straight slide groove 8011, the arc slide groove 8012 and the movable groove 8021, the L-shaped rod 804 moves up and down in the connecting frame 5, thereby driving the scraper bar 805 to move. When the scraper bar 805 moves downward, it will squeeze the filter plate 703, and under the coordinated action of the two springs 705 and the dredging plate 702, the filter plate 703 will be dredged. At the same time, under the swing of the cross swing plate 405, the scraper bar 805 slides on the upper surface of the filter plate 703, scraping off the sludge on the upper surface of the filter plate 703, which is beneficial to the collection of sludge.

[0032] A method for treating a sewage sludge discharge device, the method comprising the following steps: S1. Connect the device to an external power source, start the rotary cylinder 401, the water pump 302 and the high-pressure water pump 602 through the control system, and pump the sewage in the sewage pool 1 into the connecting frame 5 under the drive of the water pump 302. In this process, the sewage is filtered by the filter plate 703 and enters the connecting frame 5 through the drainage gap 7021; S2. The sewage entering the connection frame 5 is pumped into the injection pipe 603 under the drive of the high-pressure water pump 602, and finally sprayed out through the high-pressure nozzle 604 and the hose 905; the sewage sprayed out by the high-pressure nozzle 604 can disperse the sludge on the bottom wall of the sewage pool 1, and the sewage sprayed out by the hose 905 enters the stirring rod 404 at the bottom and is ejected through the water outlet; under the swinging action of the stirring rod 404, the range of sewage flushing the bottom of the sewage pool 1 is expanded, the efficiency of dispersing the sludge is improved, and the sludge is prevented from being accumulated at the bottom for a long time, which is not conducive to the subsequent drainage mechanism 3 to discharge it; S3, driven by the rotating cylinder 401, the pulley 402 is driven to rotate, and with the help of the transmission belt 403, the stirring rod 404 and the cross swing plate 405 are synchronously driven to swing within the set angle range; the swing of the stirring rod 404 stirs the sewage in the sewage pool 1, and during the swinging of the cross swing plate 405, the slider 802 fixedly connected to the connecting rod 803 is driven to slide left and right in the fixed frame 801, and when the L-shaped rod 804 moves to the arc-shaped slide groove 8012, the L-shaped rod 804 synchronously drives the scraper 805 to move downward under the action of the movable groove 8021, and the scraper 805 moves downward. 05, the filter plate 703 moves downward, so that the dredging needles on the dredging plate 702 correspond to the mesh holes on the filter plate 703 one by one, thereby achieving a dredging effect on the filter plate 703. During this process, the two springs 705 are compressed. When the cross swing plate 405 drives the connecting rod 803 to move left or right, the L-shaped rod 804 drives the scraper bar 805 to move upward under the limit of the straight slide groove 8011, and the filter plate 703 is reset under the action of the two springs 705. After that, the movement of the scraper bar 805 can scrape the sludge accumulated on the filter plate 703 into the two ends of the connecting frame 5 for collection; S4. The sewage in the sewage pool 1 is cyclically pumped out, the sludge therein is filtered, and the bottom of the sewage pool 1 is then flushed with the filtered sewage to avoid sludge accumulation. Such an operation can quickly and effectively discharge the sludge in the sewage pool 1, solving the cumbersome steps of most existing sludge discharge equipment, which requires a sludge pump to pump sludge from one area and then switch to another area to pump sludge.

[0033] In summary, the sewage treatment sludge discharge device and method can spray the filtered sewage to the bottom of the sewage pool 1 through the setting of the injection mechanism 6, so as to disperse the sludge at the bottom of the sewage pool 1; and the setting of the water outlet 4041 makes the filtered sewage expand the range of dispersing the sludge at the bottom of the sewage pool 1 under the action of the swinging stirring rod 404, improve the degree of fusion of sewage and sludge, and avoid the sludge from being accumulated at the bottom of the sewage pool 1 for a long time, which is not conducive to the subsequent discharge of sludge; through the straight slide 8011, the arc The setting of the L-shaped slide groove 8012 and the movable groove 8021 enables the L-shaped rod 804 to move up and down in the connecting frame 5, thereby driving the scraper bar 805 to move. When the scraper bar 805 moves downward, it will squeeze the filter plate 703, and under the coordinated action of the two springs 705 and the dredging plate 702, the filter plate 703 will be dredged. At the same time, under the swing of the cross swing plate 405, the scraper bar 805 slides on the upper surface of the filter plate 703, scraping off the silt on the upper surface of the filter plate 703, which is beneficial to the collection of silt.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sewage treatment sludge discharge device, comprising a sewage tank (1), characterized in that: The upper surface of the sewage pool (1) is clamped with an upper cover (2), and a swing mechanism (4) is arranged on the upper cover (2). The inner walls of the four sides of the sewage pool (1) are fixedly mounted with drainage mechanisms (3), and the outer walls of the four sides of the sewage pool (1) are fixedly connected with connection frames (5). The drainage mechanism (3) on each side corresponds to the connection frame (5) on each side. A filtering mechanism (7) and an injection mechanism (6) are arranged in each connection frame (5). The injection mechanism (6) is fixedly connected to the swing mechanism (4) through the sewage pool (1), and a cleaning mechanism (8) is fixedly connected to the outer wall of each connection frame (5).

2. A sewage treatment sludge discharge device as claimed in claim 1, characterized in that: The drainage mechanism (3) comprises a first sewage pipe (301), a water pump (302) and a second sewage pipe (303); the first sewage pipe (301) and the water pump (302) are both located in the sewage pool (1), and the water pump (302) is fixedly connected to the inner wall of the sewage pool (1); the first sewage pipe (301) and the second sewage pipe (303) are fixedly connected via the water pump (302); the second sewage pipe (303) is L-shaped, and the water outlet end of the second sewage pipe (303) is aligned with the connection frame (5).

3. A sewage treatment sludge discharge device as claimed in claim 1, characterized in that: The swing mechanism (4) comprises a rotating cylinder (401), the outer cover of the rotating cylinder (401) is provided with a waterproof shell, the waterproof shell is fixedly connected to the inner wall of the upper cover (2), the rotating shaft of the rotating cylinder (401) extends out of the upper cover (2) and is fixedly connected to a pulley (402), the middle part of the upper cover (2) is rotatably connected to a stirring rod (404), the lower end of the stirring rod (404) extends into the sewage pool (1), and the lower surface of the lowest rod body of the stirring rod (404) is provided with a plurality of water outlets (4041).

4. A sewage treatment sludge discharge device as claimed in claim 3, characterized in that: The upper end of the stirring rod (404) extends out of the upper cover (2); the pulley (402) is connected to the upper end of the stirring rod (404) through a transmission belt (403); a cross swing disk (405) is fixedly connected to the upper surface of the stirring rod (404); and limiting grooves (4051) are provided at the four corners of the cross swing disk (405).

5. A sewage treatment sludge discharge device as claimed in claim 3, characterized in that: The injection mechanism (6) comprises a connecting pipe (601), a high-pressure water pump (602) is fixedly mounted on the connecting pipe (601), the connecting pipe (601) and the high-pressure water pump (602) are both located in a connecting frame (5), a spray pipe (603) is fixedly connected to the outer end of the connecting pipe (601), the spray pipe (603) is located in the sewage pool (1), a plurality of high-pressure nozzles (604) are linearly arranged and obliquely downwardly arranged on the spray pipe (603), a hose (905) is fixedly connected to the middle of the spray pipe (603), and the hose (905) is fixedly connected to the upper surface of the rod body located at the bottom.

6. A sewage treatment sludge discharge device as claimed in claim 2, characterized in that: The filtering mechanism (7) comprises two partitions (701), the two partitions (701) being respectively located on two sides of the interior of the connection frame (5), the two partitions (701) being fixedly connected via a dredging plate (702), and a plurality of drainage notches (7021) being spaced apart on both sides of the dredging plate (702).

7. A sewage treatment sludge discharge device as claimed in claim 6, characterized in that: A filter plate (703) is arranged above the dredging plate (702); a limit rod (704) is fixedly mounted on the upper surface of each of the partition plates (701); the filter plate (703) slides on the outer surfaces of the two limit rods (704); a spring (705) is sleeved on the outer surface of each of the limit rods (704); two ends of the spring (705) are respectively fixedly connected to the upper surface of the partition plate (701) and the lower surface of the filter plate (703).

8. A sewage treatment sludge discharge device as claimed in claim 4, characterized in that: The cleaning mechanism (8) comprises a fixed frame (801), the fixed frame (801) being fixedly mounted on the outer wall of the connecting frame (5), straight slide grooves (8011) being provided at both ends of the inner side of the fixed frame (801), an arcuate slide groove (8012) being provided at the middle portion of the inner side of the fixed frame (801), the straight slide groove (8011) being connected to the arcuate slide groove (8012), a slider (802) being slidably arranged in the fixed frame (801), a connecting rod (803) being fixedly connected to the upper surface of the slider (802), and the upper end of the connecting rod (803) slidingly sliding in the limiting groove (4051).

9. A sewage treatment sludge discharge device as claimed in claim 8, characterized in that: A movable groove (8021) is provided on the inner side of the sliding block (802), an L-shaped rod (804) is slidably connected in the movable groove (8021), a scraper strip (805) is fixedly connected to one end of the L-shaped rod (804), and both the L-shaped rod (804) and the scraper strip (805) are located in the connection frame (5).

10. A method for discharging sludge from sewage, characterized in that: The method is applicable to a sewage treatment sludge discharge device according to any one of claims 1 to 9, and comprises the following steps: S1. The device is connected to an external power source, and the rotary cylinder (401), the water pump (302) and the high-pressure water pump (602) are started through the control system. Under the drive of the water pump (302), the sewage in the sewage pool (1) is pumped into the connecting frame (5). During this process, the sewage is filtered by the filter plate (703) and enters the connecting frame (5) through the drainage gap (7021); S2. The sewage entering the connection frame (5) is pumped into the injection pipe (603) under the drive of the high-pressure water pump (602), and finally ejected through the high-pressure nozzle (604) and the hose (905); the sewage ejected from the high-pressure nozzle (604) can disperse the sludge on the bottom wall of the sewage pool (1), while the sewage ejected from the hose (905) enters the stirring rod (404) at the bottom and is ejected through the water outlet hole; under the swinging action of the stirring rod (404), the range of sewage flushing the bottom of the sewage pool (1) is expanded, the efficiency of dispersing the sludge is improved, and the sludge is prevented from being accumulated at the bottom for a long time, which is not conducive to the subsequent drainage mechanism (3) to discharge it; S3, the pulley (402) is driven to rotate by the rotating cylinder (401), and the driving belt (403) is used to synchronously drive the stirring rod (404) and the cross swing plate (405) to swing within a set angle range; the swing of the stirring rod (404) has a stirring effect on the sewage in the sewage pool (1), and during the swing of the cross swing plate (405), the slider (802) fixedly connected to the connecting rod (803) is driven to slide left and right in the fixed frame (801), and when the L-shaped rod (804) moves to the arc-shaped slide groove (8012), the L-shaped rod (804) synchronously drives the scraper (805) to move downward under the action of the movable groove (8021), and the scraper (805) is moved downward by the L-shaped rod (804). Under the pressure of the two springs (705), the filter plate (703) moves downward, so that the dredging needles on the dredging plate (702) correspond to the mesh holes on the filter plate (703) one by one, thereby achieving a dredging effect on the filter plate (703). During this process, the two springs (705) are compressed. When the cross swing plate (405) drives the connecting rod (803) to move left or right, the L-shaped rod (804) drives the scraping bar (805) to move upward under the limit of the straight slide groove (8011), and the filter plate (703) is reset under the action of the two springs (705). After that, the movement of the scraping bar (805) can scrape the sludge accumulated on the filter plate (703) into the two ends of the connecting frame (5) for collection; S4, by cyclically pumping out the sewage in the sewage pool (1), filtering the sludge therein, and then using the filtered sewage to wash the bottom of the sewage pool (1), thereby avoiding sludge accumulation; such operation can quickly and effectively discharge the sludge in the sewage pool (1), solving the cumbersome steps of most existing sludge discharge equipment, which requires a sludge pump to pump sludge from one area and then switch to another area to pump sludge.

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