A sludge treatment device

Abstract

The utility model relates to sludge dosing technical field, the utility model provides a kind of sludge treatment device, including box and lid, lid is installed on the top side wall of box by bolt, still include feed bin, discharge pipe, support cover, stirring pipe, first rotating mechanism, dosing mechanism and surging mechanism, feed bin is fixedly arranged on lid, feed bin is communicated with box, discharge pipe is communicated and is arranged on the bottom side wall of box, built-in discharge control valve in discharge pipe, support cover is fixedly arranged on the top side wall of lid, stirring pipe is rotationally and sealingly arranged on the inner top wall of support cover, the bottom end of stirring pipe penetrates lid and extends into box, the sidewall of stirring pipe is fixedly provided with multiple stirring rods, by above technical scheme, for solving the technical problem that sludge is added flocculating agent in prior art in the process of being prone to uneven mixing.

Description

Technical Field

[0001] This utility model relates to the field of sludge dosing technology, specifically to a sludge treatment device. Background Technology

[0002] In municipal wastewater treatment, industrial wastewater treatment, and solid waste disposal, large quantities of sludge with extremely high water content are generated. This type of sludge contains complex organic and inorganic components, and its microstructure exhibits typical colloidal characteristics—the surface of sludge particles is coated with a stable hydration film, and the particles form a tight colloidal system through electrostatic repulsion and van der Waals forces, resulting in an overall viscous colloidal sludge. This colloidal structure makes it difficult to effectively separate the water in the sludge (including interstitial water, surface adsorbed water, and internal bound water) using conventional physical dewatering methods such as filtration and pressing, making sludge dewatering extremely challenging. Currently, to address the dewatering challenges posed by the colloidal structure of sludge, the industry generally adopts a process route of "conditioning pretreatment + subsequent dewatering." The core objective of the conditioning stage is to disrupt the sludge colloidal structure, weaken the stabilizing forces between particles, release bound water, and create favorable conditions for subsequent dewatering processes. Existing conditioning technologies are mainly divided into three categories: the first is chemical conditioning, commonly using flocculants such as polyaluminum chloride (PAC) and polyacrylamide (PAM). These agents cause sludge colloidal particles to aggregate or flocculate through charge neutralization, adsorption bridging, and other effects, forming larger flocs, thereby reducing the binding force between water and particles.

[0003] However, the process of adding flocculants usually involves directly adding the flocculant to the surface of the sludge, and then mixing the sludge and flocculant by stirring. However, sludge and flocculant are prone to stratification. Sludge tends to settle at the bottom of the tank, while flocculant tends to settle at the top of the tank, resulting in uneven mixing in certain areas. This affects the mixing effect of sludge and flocculant, and consequently affects the sludge treatment efficiency. Utility Model Content

[0004] To overcome the above-mentioned defects, this utility model provides a sludge treatment device to solve the technical problem of uneven mixing during the process of adding flocculants to sludge in the prior art.

[0005] According to one aspect, at least one embodiment of the present invention provides a sludge treatment device, including a box body and a box cover. The box cover is bolted to the top side wall of the box body. The device also includes a feed hopper, a discharge pipe, a support cover, a stirring pipe, a first rotating mechanism, a dosing mechanism, and a turbulence mechanism. The feed hopper is fixedly disposed on the box cover and communicates with the box body. The discharge pipe is connected to the bottom side wall of the box body and has a built-in discharge control valve. The support cover is fixedly disposed on the top side wall of the box cover. The stirring pipe is rotatably and sealed on the inner top wall of the support cover. The bottom end of the stirring pipe extends through the box cover into the box body. Multiple stirring rods are fixedly disposed on the side wall of the stirring pipe. The first rotating mechanism is disposed between the support cover and the stirring pipe for driving the stirring pipe to rotate. The dosing mechanism is disposed on the box cover for adding liquid polyaluminum chloride to the sludge in the box body. The turbulence mechanism is disposed on the stirring pipe for introducing airflow into the box body.

[0006] Preferably, the first rotating mechanism includes a first gear ring, a first gear, and a first motor. The first gear ring is fixedly disposed on the outer wall of the stirring tube, the first gear is rotatably disposed on the inner top wall of the support cover, the first gear meshes with the first gear ring, and the first motor is mounted on the support cover, with the output end of the first motor fixedly connected to the first gear.

[0007] Furthermore, the dosing mechanism includes a first cavity, a positioning cover, a first housing, a positioning ring, and a second rotating mechanism. The first cavity is located inside the box cover, and a positioning port is provided on the bottom side wall of the first cavity. The positioning cover is rotatably and sealingly mounted on the inner top wall of the first cavity. The bottom end of the positioning cover extends into the box body through the positioning port. The positioning cover and the positioning port are rotatably and sealingly connected. The stirring tube passes through the positioning cover and is rotatably and sealingly connected to the positioning cover. Multiple L-shaped first housings are connected and fixedly mounted on the side wall of the positioning cover. Multiple first perforated nozzles are connected and mounted on the side wall of the first housing. The positioning ring is located inside the box body and is fixedly connected to the bottom end of the first housing. The second rotating mechanism is located on the box cover and is used to drive the positioning cover to rotate.

[0008] Furthermore, a liquid inlet pipe is provided through the lid of the box, and one end of the liquid inlet pipe near the box body extends into the positioning cover.

[0009] Furthermore, the second rotating mechanism includes a second gear ring, a second gear, and a second motor. The second gear ring is fixedly disposed on the outer wall of the positioning cover, the second gear is rotatably disposed in the first cavity, the second gear meshes with the second gear ring, and the second motor is mounted on the cover, with the output end of the second motor fixedly connected to the second gear.

[0010] Based on the above scheme, the churning mechanism includes a second housing and a connecting pipe. The second housing is rotatably disposed and connected to the bottom end of the stirring pipe. A plurality of the connecting pipes are fixedly disposed between the second housing and the positioning ring. A plurality of second perforated nozzles are installed on the side wall of the connecting pipe.

[0011] Based on the above scheme, an air inlet pipe is provided through the top side wall of the support cover, and the end of the air inlet pipe near the box body extends into the stirring pipe.

[0012] Based on the above scheme, an exhaust pipe is provided through the box cover.

[0013] The beneficial effects of the embodiments of this utility model are as follows: 1. In this utility model, by setting up a dosing mechanism, the operation of the second motor can drive the second gear to rotate, and at the same time, the meshing of the second gear and the second gear ring can drive the positioning cover to rotate, thereby causing the first housing and the first perforated nozzle to move around the positioning cover, which facilitates the adjustment of the dosing position and thus facilitates the improvement of the mixing effect. 2. In this utility model, by setting the first rotating mechanism, the operation of the first motor can drive the first gear to rotate, and at the same time, the meshing of the first gear and the first gear ring can drive the stirring tube to rotate. The rotation of the stirring tube can drive the stirring rod to stir the sludge and liquid polyaluminum chloride, thereby facilitating the improvement of the mixing efficiency between liquid polyaluminum chloride and sludge. 3. In this utility model, by setting up the churning mechanism, clean air can be introduced into the stirring tube, the second shell and the connecting tube through the air inlet pipe, and then airflow is blown into the bottom of the sludge through the second perforated nozzle, thereby causing the sludge to churn, which can further improve the mixing efficiency between liquid polyaluminum chloride and sludge. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of a sludge treatment device in one embodiment of the present invention; Figure 2 for Figure 1 A structural schematic diagram of the box section in the embodiment; Figure 3 for Figure 1 A cross-sectional structural schematic diagram of the second rotating mechanism in the embodiment; Figure 4 for Figure 1 A cross-sectional structural schematic diagram of the first rotating mechanism in the embodiment; Figure 5 for Figure 1 The embodiment shows a cross-sectional structural diagram of the churning mechanism and the drug delivery mechanism.

[0016] In the diagram: 1. Box body; 2. Box cover; 3. Feed hopper; 4. Discharge pipe; 5. Support cover; 6. Stirring pipe; 7. First gear ring; 8. First gear; 9. First motor; 10. First cavity; 11. Positioning cover; 12. First housing; 13. First perforated nozzle; 14. Positioning ring; 15. Liquid inlet pipe; 16. Second gear ring; 17. Second gear; 18. Second motor; 19. Second housing; 20. Connecting pipe; 21. Second perforated nozzle; 22. Air inlet pipe; 23. Exhaust pipe. Detailed Implementation The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0017] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0018] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0020] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] like Figures 1-5 As shown, this invention illustrates a sludge treatment device according to one embodiment of the present invention, including a housing 1 and a housing cover 2. The housing cover 2 is bolted to the top side wall of the housing 1. The device also includes a feed hopper 3, a discharge pipe 4, a support cover 5, a stirring pipe 6, a first rotating mechanism, a dosing mechanism, and a turbulence mechanism. The feed hopper 3 is fixedly mounted on the housing cover 2 and communicates with the housing 1. The discharge pipe 4 is connected to the bottom side wall of the housing 1 and has a built-in discharge control valve. The support cover 5 is fixedly mounted on the top side wall of the housing cover 2. The stirring pipe 6 is rotatably and sealed on the inner top wall of the support cover 5. The bottom end of the stirring pipe 6 penetrates the housing cover 2 and extends into the housing 1. Multiple stirring rods are fixedly mounted on the side wall of the stirring pipe 6. The first rotating mechanism is located between the support cover 5 and the stirring pipe 6 to drive the stirring pipe 6 to rotate. The dosing mechanism is located on the housing cover 2 to add liquid polyaluminum chloride to the sludge in the housing 1. The turbulence mechanism is located on the stirring pipe 6 to introduce airflow into the housing 1.

[0023] Reference Figures 2-4The first rotating mechanism includes a first gear ring 7, a first gear 8, and a first motor 9. The first gear ring 7 is fixedly mounted on the outer wall of the stirring tube 6, and the first gear 8 is rotatably mounted on the inner top wall of the support cover 5. The first gear 8 meshes with the first gear ring 7. The first motor 9 is mounted on the support cover 5, and the output end of the first motor 9 is fixedly connected to the first gear 8. Specifically, the operation of the first motor 9 can drive the first gear 8 to rotate, and at the same time, the meshing of the first gear 8 with the first gear ring 7 can drive the stirring tube 6 to rotate. The rotation of the stirring tube 6 can drive the stirring rod to stir the sludge and liquid polyaluminum chloride, thereby facilitating the improvement of the mixing efficiency between liquid polyaluminum chloride and sludge.

[0024] Reference Figures 2-5 The dosing mechanism includes a first cavity 10, a positioning cover 11, a first housing 12, a positioning ring 14, and a second rotating mechanism. The first cavity 10 is located inside the box cover 2. A positioning port is provided on the bottom side wall of the first cavity 10. The positioning cover 11 is rotatably and sealingly mounted on the inner top wall of the first cavity 10. The bottom end of the positioning cover 11 extends into the box body 1 through the positioning port. The positioning cover 11 is rotatably and sealingly connected to the positioning port. A stirring tube 6 passes through the positioning cover 11 and is rotatably and sealingly connected to the positioning cover 11. Multiple L-shaped first housings 12 are connected and fixedly mounted on the side wall of the positioning cover 11. Multiple first perforated nozzles 13 are connected and mounted on the side wall of the first housing 12. The positioning ring 14 is located inside the box body 1 and is fixedly connected to the bottom end of the first housing 12. The second rotating mechanism is located on the box cover 2 and is used to drive the positioning cover 11 to rotate. An inlet pipe 15 is provided through the box cover 2. The end of the inlet pipe 15 near the box body 1 extends into the positioning cover 11. Inside, the second rotating mechanism includes a second gear ring 16, a second gear 17, and a second motor 18. The second gear ring 16 is fixedly mounted on the outer wall of the positioning cover 11. The second gear 17 is rotatably mounted in the first cavity 10 and meshes with the second gear ring 16. The second motor 18 is mounted on the cover 2, and the output end of the second motor 18 is fixedly connected to the second gear 17. Specifically, the operator can supply liquid polyaluminum chloride to the first perforated nozzle 13 through the liquid inlet pipe 15 and spray liquid polyaluminum chloride into the sludge through the first perforated nozzle 13. Then, the operator controls the second motor 18 to work. The operation of the second motor 18 can drive the second gear 17 to rotate. At the same time, the meshing of the second gear 17 and the second gear ring 16 drives the positioning cover 11 to rotate, thereby causing the first housing 12 and the first perforated nozzle 13 to move around the positioning cover 11, which facilitates the adjustment of the dosing position and thus improves the mixing effect.

[0025] Reference Figures 3-5The churning mechanism includes a second housing 19 and a connecting pipe 20. The second housing 19 is rotatably disposed and connected to the bottom end of the stirring pipe 6. Multiple connecting pipes 20 are fixedly disposed between the second housing 19 and the positioning ring 14. Multiple second perforated nozzles 21 are installed on the side wall of the connecting pipes 20. An air inlet pipe 22 is provided through the top side wall of the support cover 5. The end of the air inlet pipe 22 near the box body 1 extends into the stirring pipe 6. An exhaust pipe 23 is provided through the box cover 2. Specifically, clean air can be introduced into the stirring pipe 6, the second housing 19 and the connecting pipe 20 through the air inlet pipe 22, and then airflow is blown into the bottom of the sludge through the second perforated nozzles 21, thereby causing the sludge to churn, which can further improve the mixing efficiency between liquid polyaluminum chloride and sludge.

[0026] In this embodiment, during use, the operator adds sludge to the housing 1 through the feed hopper 3. Then, the operator supplies liquid polyaluminum chloride to the first perforated nozzle 13 through the liquid inlet pipe 15 and sprays it into the sludge through the first perforated nozzle 13. The operator then controls the second motor 18, which drives the second gear 17 to rotate. Simultaneously, the meshing of the second gear 17 with the second gear ring 16 drives the positioning cover 11 to rotate, causing the first housing 12 and the first perforated nozzle 13 to move around the positioning cover 11. This facilitates adjustment of the dosing position, thereby improving the mixing effect. Simultaneously, the operator controls the first motor 9, which drives the first gear 8 to rotate. The meshing of the first gear 8 with the first gear ring 7 drives the stirring tube 6 to rotate, thus improving the mixing effect. The rotation of pipe 6 can drive the stirring rod to stir the sludge and liquid polyaluminum chloride, thereby improving the mixing efficiency between liquid polyaluminum chloride and sludge. At the same time, the operator can introduce clean air into the stirring pipe 6, the second housing 19 and the connecting pipe 20 through the air inlet pipe 22, and then blow air into the bottom of the sludge through the second perforated nozzle 21, causing the sludge to surge, which can further improve the mixing efficiency between liquid polyaluminum chloride and sludge. After mixing is completed, the operator can open the discharge control valve and add the sludge to the next process through the discharge pipe 4. After the sludge is discharged, the operator can introduce clean water into the liquid inlet pipe 15 and the air inlet pipe 22, so as to flush the first perforated nozzle 13 and the second perforated nozzle 21 with clean water, thereby preventing the first perforated nozzle 13 and the second perforated nozzle 21 from becoming blocked.

[0027] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A sludge treatment device comprising a tank (1) and a tank cover (2) which is bolted to the top side wall of the tank (1), characterized in that Also includes: Feeding bin (3), the feeding bin (3) is fixedly installed on the box cover (2), and the feeding bin (3) is connected to the box body (1); The discharge pipe (4) is connected to the bottom side wall of the box (1), and the discharge pipe (4) has a built-in discharge control valve; Support cover (5), the support cover (5) is fixedly installed on the top side wall of the box cover (2); A stirring tube (6) is rotatably and sealed on the inner top wall of the support cover (5). The bottom end of the stirring tube (6) penetrates the box cover (2) and extends into the box body (1). Multiple stirring rods are fixedly installed on the side wall of the stirring tube (6). The first rotating mechanism is disposed between the support cover (5) and the stirring tube (6) for driving the stirring tube (6) to rotate; A dosing mechanism is provided on the tank cover (2) for adding liquid polyaluminum chloride to the sludge inside the tank (1); A turbulence mechanism is provided on the stirring tube (6) for introducing airflow into the box (1).

2. A sludge treatment apparatus according to claim 1, characterised in that The first rotating mechanism includes: The first toothed ring (7) is fixedly disposed on the outer wall of the stirring tube (6); The first gear (8) is rotatably mounted on the inner top wall of the support cover (5), and the first gear (8) meshes with the first gear ring (7); The first motor (9) is mounted on the support cover (5), and the output end of the first motor (9) is fixedly connected to the first gear (8).

3. A sludge treatment apparatus according to claim 2, characterised in that The drug dispensing unit includes: The first cavity (10) is opened inside the box cover (2), and the bottom side wall of the first cavity (10) is provided with a positioning port; Positioning cover (11) is rotatably and sealingly mounted on the inner top wall of the first cavity (10). The bottom end of the positioning cover (11) extends into the box body (1) through the positioning port. The positioning cover (11) is rotatably and sealingly connected with the positioning port. The stirring tube (6) passes through the positioning cover (11) and is rotatably and sealed to the positioning cover (11); The first housing (12) has multiple L-shaped first housings (12) connected to and fixedly provided on the side wall of the positioning cover (11), and multiple first perforated nozzles (13) connected to the side wall of the first housing (12). Positioning ring (14), the positioning ring (14) is disposed inside the housing (1), and the positioning ring (14) is fixedly connected to the bottom end of the first housing (12); The second rotating mechanism is disposed on the box cover (2) and is used to drive the positioning cover (11) to rotate.

4. The sludge treatment device according to claim 3, characterized in that, A liquid inlet pipe (15) is provided through the cover (2), and one end of the liquid inlet pipe (15) near the box body (1) extends into the positioning cover (11).

5. A sludge treatment device according to claim 4, characterized in that, The second rotating mechanism includes: The second toothed ring (16) is fixedly disposed on the outer wall of the positioning cover (11); The second gear (17) is rotatably disposed in the first cavity (10), and the second gear (17) meshes with the second gear ring (16); The second motor (18) is mounted on the cover (2), and the output end of the second motor (18) is fixedly connected to the second gear (17).

6. The sludge treatment device according to claim 5, characterized in that, The turbulence mechanism includes: The second housing (19) is rotatably disposed and connected to the bottom end of the stirring tube (6); A plurality of connecting pipes (20) are fixedly disposed between the second housing (19) and the positioning ring (14), and a plurality of second perforated nozzles (21) are installed on the side wall of the connecting pipes (20).

7. A sludge treatment device according to claim 6, characterized in that, An air inlet pipe (22) is provided through the top side wall of the support cover (5), and the end of the air inlet pipe (22) near the box body (1) extends into the stirring pipe (6).

8. A sludge treatment device according to claim 7, characterized in that, An exhaust pipe (23) is provided through the box cover (2).

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