Desliming machine for sewage treatment

Abstract

The utility model relates to the technical field of sewage treatment, and discloses a desliming machine for sewage treatment, which comprises a base, an outer cylinder is arranged at the top of the base, an inner cylinder is rotatably connected inside the outer cylinder through a sealing bearing, a water inlet pipe is embedded at the right end of the inner cylinder, and a sludge discharge pipe is embedded at the left end of the inner cylinder. Valves are arranged on the surfaces of the water inlet pipe and the sludge discharge pipe. Sludge-containing sewage is added into the inner cylinder through the water inlet pipe, water and sludge in the sewage are separated through the filtering effect of the water screening holes, the water penetrates through the water screening holes and then is discharged out of the outer cylinder through the water discharging pipe, in the desliming process, the inner cylinder is driven by the gear motor to rotate, and under the effect of centrifugal force, the flowing speed of the water can be increased; on the other hand, in the desliming process, air flow is pumped into the inner barrel through the air pump, under the action of air pressure, the speed of water penetrating through the water screening holes can be further increased, and therefore the desliming efficiency can be further improved, and the purpose of efficient desliming treatment is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, and more specifically to a sludge dewatering machine for sewage treatment. Background Art

[0002] Sewage treatment is a process of purifying sewage to meet the water quality requirements for discharging into a certain water body or reusing it. During the sewage treatment process, since many harmful substances in the sewage will be hidden in the sludge and are difficult to purify, a sludge dewatering machine is needed to separate the sludge from the sewage for separate treatment.

[0003] After retrieval, the existing patent (publication number: CN220364372U) discloses a sludge dewatering machine for sewage treatment. During its use, the first motor rotates to drive the first runner to rotate. The rotation of the first runner drives the belt, which in turn drives the second runner to drive the filter cylinder. The filter cylinder filters the larger soil in the sewage, and the sewage passes through the filter screen to filter the finer soil. The rotation of the filter cylinder causes the soil to fall into the collection box through the slide plate. The rotation of the second motor drives the threaded column to rotate, which makes the moving plate move, and the finer soil falls into the collection box through the second slide plate. The filtered sewage enters the water tank, achieving the purpose of effectively treating the sludge in the sewage. However, the inventor found the following problems in the process of implementing the present utility model: for the above-mentioned sludge dewatering machine, when separating cement from sewage, the sewage is pumped into the interior of the filter cylinder, and through the rotation of the filter cylinder, under the action of centrifugal force, the filtering effect of the filter screen on the sewage is improved to achieve the purpose of improving the sludge dewatering efficiency. However, simply using the rotation method for sludge dewatering still has room for improvement in its sludge dewatering efficiency and is difficult to meet the usage requirements.

[0004] In view of this, the present utility model provides a sludge dewatering machine for sewage treatment with high sludge dewatering efficiency. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present utility model provides a sludge dewatering machine for sewage treatment to solve the problems existing in the above background art.

[0006] The present utility model provides the following technical solution: A sludge dewatering machine for sewage treatment, including a base, on the top of the base is provided an outer cylinder, the interior of the outer cylinder is rotatably connected to an inner cylinder through a sealed bearing, a water inlet pipe is embedded at the right end of the inner cylinder, a sludge discharge pipe is embedded at the left end of the inner cylinder, valves are provided on the surfaces of both the water inlet pipe and the sludge discharge pipe, water screening holes are opened on the surface of the inner cylinder within the cavity of the outer cylinder, a drain pipe is embedded at the bottom end of the outer cylinder, and a rotary sludge dewatering component and a wind-force sludge dewatering component are respectively arranged between the outer cylinder and the inner cylinder;

[0007] The rotating sludge removal assembly includes a reduction motor fixedly installed on the surface of the outer cylinder. A driving gear is fixedly installed on the surface of the output shaft of the reduction motor. A driven gear ring is fixedly installed on the surface of the inner cylinder. The driving gear meshes with the driven gear ring.

[0008] The wind-force sludge removal assembly includes an air duct rotatably connected to the left end of the inner cylinder. A connecting frame is fixedly installed on the surface of the air duct. The connecting frame is fixedly installed at the left end of the outer cylinder. An air pump is fixedly installed at the left end of the air duct, and the output end of the air pump faces the inside of the air duct. The right end of the air duct extends into the inside of the inner cylinder and is provided with air outlet holes.

[0009] Furthermore, a feed hopper is fixedly installed at the right end of the outer cylinder. The discharge end of the feed hopper is rotatably connected to the water inlet pipe. By providing the feed hopper, it is convenient to continuously add the muddy sewage into the inner cylinder when the inner cylinder rotates.

[0010] Furthermore, a water storage tank is fixedly installed on the surface of the base. The water outlet end of the drain pipe is communicated with the water storage tank. A drain pipe, a sewage discharge valve and a liquid level window are respectively arranged on the surface of the water storage tank. By providing the water storage tank, it is convenient to temporarily store the discharged sewage. By providing the sewage discharge valve and the liquid level window, it is convenient to observe the liquid level by using the liquid level window. When the liquid level is too high, the sewage discharge valve can be opened to discharge the sewage.

[0011] Furthermore, a stirring rod is fixedly installed on the surface of the air duct. An inner scraper is fixedly installed at the end of the stirring rod. The inner scraper abuts against the inner wall of the inner cylinder. By providing the stirring rod, since the positions of the air duct and the stirring rod remain unchanged while the inner cylinder is continuously rotating, the sewage and sludge inside the inner cylinder can be agitated by the stirring rod under the action of relative movement, improving the fluidity of the water. By providing the inner scraper, the inner wall of the inner cylinder can be cleaned to prevent the water screening holes from being blocked and ensure the sludge removal efficiency.

[0012] Furthermore, a limiting sliding groove is formed on the inner wall of the outer cylinder. An outer scraper is slidably connected to the inner wall of the limiting sliding groove. The outer scraper corresponds to the outer wall of the inner cylinder. A support spring for driving the outer scraper to abut against the outer wall of the inner cylinder is arranged inside the limiting sliding groove. By providing the outer scraper, the outer wall of the inner cylinder can be cleaned, and the outer scraper is flexibly installed by the elastic force of the support spring. When encountering impurities with a greater hardness, the outer scraper can make way.

[0013] Furthermore, the outer cylinder is rotatably connected to the top of the base, and two side plates are fixedly installed on the surface of the base. A transverse lead screw is rotatably connected between the two side plates, and a servo motor for driving the transverse lead screw is fixedly installed on the surface of the side plate. A transverse slider is threadedly connected to the surface of the transverse lead screw, and a support rod is rotatably connected to the surface of the transverse slider. The other end of the support rod is rotatably connected to the surface of the outer cylinder. By driving the transverse lead screw to rotate with the servo motor, the transverse slider can be driven to move, and then the outer cylinder can be lifted by using the support rod, so that the left end of the outer cylinder faces downward, facilitating the discharge of sludge from the sludge discharge pipe and improving the use effect of the overall sludge dewatering machine.

[0014] Furthermore, a transverse sliding rod is fixedly installed between the two side plates, and the transverse slider is slidably connected to the surface of the transverse sliding rod. By setting the transverse sliding rod, the stability of the transverse slider during movement can be improved.

[0015] The technical effects and advantages of the present utility model:

[0016] 1. In the present utility model, the muddy sewage is added into the inner cylinder through the water inlet pipe. By using the filtering effect of the water screening holes, the water and sludge in the sewage are separated. The water passes through the water screening holes and then is discharged from the outer cylinder through the drain pipe. During the sludge dewatering process, the inner cylinder is driven to rotate by the reduction motor. Under the action of centrifugal force, the flow rate of the water can be increased, thereby improving the sludge dewatering efficiency. On the other hand, during the sludge dewatering process, air is pumped into the inner cylinder by the air pump. Under the action of air pressure, the speed of the water passing through the water screening holes can be further increased, thereby further improving the sludge dewatering efficiency and meeting the purpose of high-efficiency sludge dewatering treatment.

[0017] 2. In the present utility model, by setting the feed hopper, it is convenient to continuously add sewage into the inner cylinder while the inner cylinder is rotating; by setting the water storage tank, it is convenient to temporarily store the discharged sewage. By setting the sewage discharge valve and the liquid level window, it is convenient to observe the liquid level through the liquid level window. When the liquid level is too high, the sewage discharge valve can be opened to discharge the sewage; by setting the stirring rod, since the positions of the air duct and the stirring rod remain unchanged while the inner cylinder is continuously rotating, the sewage and sludge inside the inner cylinder can be stirred by using the stirring rod under the action of relative movement, improving the fluidity of the water; by setting the inner scraper, the inner wall of the inner cylinder can be cleaned to prevent the water screening holes from being blocked and ensure the sludge dewatering efficiency; by setting the outer scraper, the outer wall of the inner cylinder can be cleaned, and the outer scraper is flexibly installed by using the elastic force of the support spring. When encountering impurities with a relatively large hardness, the outer scraper can be avoided.

[0018] 3. In the present utility model, the outer cylinder is rotatably connected to the surface of the base. By driving the transverse lead screw to rotate with the servo motor, the transverse slider can be driven to move, and then the outer cylinder can be lifted by using the support rod, so that the left end of the outer cylinder faces downward, facilitating the discharge of sludge from the sludge discharge pipe and improving the use effect of the overall sludge dewatering machine. Description of the Drawings

[0019] Figure 1 Schematic diagram of the three-dimensional structure of the first perspective of the present utility model;

[0020] Figure 2 Schematic diagram of the three-dimensional structure of the second perspective of the present utility model;

[0021] Figure 3 Schematic diagram of the front sectional structure of the outer cylinder of the present utility model;

[0022] Figure 4 is Figure 3 Schematic diagram of the enlarged structure at position A in

[0023] Reference numerals are: 1, base; 2, outer cylinder; 3, inner cylinder; 4, water inlet pipe; 5, sludge discharge pipe; 6, water screening holes; 7, drain pipe; 8, reduction motor; 9, driving gear; 10, driven gear ring; 11, air duct; 12, connecting frame; 13, air pump; 14, air outlet holes; 15, feed hopper; 16, water storage tank; 17, sewage discharge valve; 18, liquid level window; 19, stirring rod; 20, inner scraper; 21, outer scraper; 22, support spring; 23, side plate; 24, horizontal lead screw; 25, servo motor; 26, horizontal slider; 27, support rod; 28, horizontal slide bar. Detailed implementation manners

[0024] Next, the technical solutions in the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the present utility model. Additionally, the forms of each structure described in the following implementation manners are merely examples. A sludge dewatering machine for sewage treatment involved in the present utility model is not limited to the structures described in the following implementation manners. All other implementation manners obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0025] Referring to Figures 1-4 , the present utility model provides a sludge dewatering machine for sewage treatment, including a base 1. An outer cylinder 2 is provided on the top of the base 1. An inner cylinder 3 is rotatably connected to the inside of the outer cylinder 2 through a sealed bearing. A water inlet pipe 4 is embedded at the right end of the inner cylinder 3, and a sludge discharge pipe 5 is embedded at the left end of the inner cylinder 3. Valves are provided on the surfaces of the water inlet pipe 4 and the sludge discharge pipe 5. Water screening holes 6 are formed on the surface of the inner cylinder 3 in the inner cavity of the outer cylinder 2. A drain pipe 7 is embedded at the bottom end of the outer cylinder 2.

[0026] When the present utility model is in use, the overall device is pre-connected to an external power control system. Then, the muddy sewage is added into the inner cylinder 3 through the water inlet pipe 4. By using the filtering effect of the water screening holes 6, the water and sludge in the sewage are separated. And the water passes through the water screening holes 6 and is discharged from the outer cylinder 2 through the drain pipe 7, while the sludge remains inside the inner cylinder 3. After the sludge dewatering is completed, the remaining sludge inside the inner cylinder 3 is discharged by opening the sludge discharge pipe 5.

[0027] A rotary sludge removal assembly and a wind-force sludge removal assembly are respectively arranged between the outer cylinder 2 and the inner cylinder 3.

[0028] The rotary sludge removal assembly includes a reduction motor 8 fixedly installed on the surface of the outer cylinder 2. A driving gear 9 is fixedly installed on the surface of the output shaft of the reduction motor 8. A driven gear ring 10 is fixedly installed on the surface of the inner cylinder 3. The driving gear 9 meshes with the driven gear ring 10.

[0029] The wind-force sludge removal assembly includes an air duct 11 rotatably connected to the left end of the inner cylinder 3. A connecting frame 12 is fixedly installed on the surface of the air duct 11. The connecting frame 12 is fixedly installed at the left end of the outer cylinder 2. An air pump 13 is fixedly installed at the left end of the air duct 11, and the output end of the air pump 13 faces the inside of the air duct 11. The right end of the air duct 11 extends into the inner cylinder 3 and is provided with air outlet holes 14.

[0030] During the sludge removal process, the inner cylinder 3 is driven to rotate by the reduction motor 8. Under the action of centrifugal force, the flow rate of water can be increased, thereby improving the sludge removal efficiency. The air pump 13 pumps air into the inner cylinder 3. With the water inlet pipe 4 closed, the pressure inside the inner cylinder 3 can be increased. Under the action of air pressure, the speed of water passing through the water screening holes 6 can be further increased, thereby further improving the sludge removal efficiency and meeting the purpose of efficient sludge removal treatment.

[0031] A water storage tank 16 is fixedly installed on the surface of the base 1. The water outlet end of the drain pipe 7 is communicated with the water storage tank 16. A drain pipe, a sewage discharge valve 17 and a liquid level window 18 are respectively arranged on the surface of the water storage tank 16.

[0032] By arranging the water storage tank 16, it is convenient to temporarily store the discharged sewage. By arranging the sewage discharge valve 17 and the liquid level window 18, it is convenient to observe the liquid level through the liquid level window 18. When the liquid level is too high, the sewage discharge valve 17 can be opened to discharge the sewage centrally.

[0033] A feed hopper 15 is fixedly installed at the right end of the outer cylinder 2. The discharge end of the feed hopper 15 is rotatably connected to the water inlet pipe 4.

[0034] By arranging the feed hopper 15, it is convenient to continuously add sewage into the inner cylinder 3 when the inner cylinder 3 is rotating.

[0035] A stirring rod 19 is fixedly installed on the surface of the air duct 11.

[0036] By arranging the stirring rod 19, since the positions of the air duct 11 and the stirring rod 19 remain unchanged while the inner cylinder 3 is continuously rotating, the sewage and sludge inside the inner cylinder 3 can be agitated by the stirring rod 19 under the action of relative movement, improving the fluidity of water.

[0037] An inner scraping plate 20 is fixedly installed at the end of the stirring rod 19. The inner scraping plate 20 abuts against the inner wall of the inner cylinder 3.

[0038] By setting the inner scraper 20, the inner wall of the inner cylinder 3 can be cleaned, preventing the water screening holes 6 from being blocked and ensuring the sludge removal efficiency.

[0039] The inner wall of the outer cylinder 2 is provided with a limit chute, and an outer scraper 21 is slidably connected to the inner wall of the limit chute. The outer scraper 21 corresponds to the outer wall of the inner cylinder 3, and a support spring 22 for driving the outer scraper 21 to abut against the outer wall of the inner cylinder 3 is arranged inside the limit chute.

[0040] By setting the outer scraper 21, the outer wall of the inner cylinder 3 can be cleaned, and the outer scraper 21 is flexibly installed by the elastic force of the support spring 22. When encountering impurities with a greater hardness, the outer scraper 21 can make way.

[0041] The outer cylinder 2 is rotatably connected to the top of the base 1, and two side plates 23 are fixedly installed on the surface of the base 1. A transverse lead screw 24 is rotatably connected between the two side plates 23. A servo motor 25 for driving the transverse lead screw 24 is fixedly installed on the surface of the side plate 23. A transverse slider 26 is threadedly connected to the surface of the transverse lead screw 24. A support rod 27 is rotatably connected to the surface of the transverse slider 26, and the other end of the support rod 27 is rotatably connected to the surface of the outer cylinder 2.

[0042] The outer cylinder 2 is rotatably connected to the base 1. By driving the transverse lead screw 24 to rotate through the servo motor 25, the transverse slider 26 can be driven to move, and then the outer cylinder 2 can be lifted by using the support rod 27, making the left end of the outer cylinder 2 face downward, so as to facilitate the sludge to be discharged from the sludge discharge pipe 5 and improve the use effect of the overall sludge removal machine.

[0043] A transverse slide bar 28 is fixedly installed between the two side plates 23, and the transverse slider 26 is slidably connected to the surface of the transverse slide bar 28.

[0044] By setting the transverse slide bar 28, the stability of the transverse slider 26 during movement can be improved.

[0045] Finally, it should be noted that: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved, and other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

Claims

1. A sludge dewatering machine for sewage treatment, comprising a base (1), characterized in that: A cylindrical outer tube (2) is provided on the top of the base (1). An inner tube (3) is rotatably connected to the inside of the outer tube (2) through a sealed bearing. A water inlet pipe (4) is embedded at the right end of the inner tube (3), and a sludge discharge pipe (5) is embedded at the left end of the inner tube (3). Valves are provided on the surfaces of the water inlet pipe (4) and the sludge discharge pipe (5). Water screening holes (6) are formed on the surface of the inner tube (3) within the inner cavity of the outer tube (2). A drain pipe (7) is embedded at the bottom end of the outer tube (2). A rotary sludge removal assembly and a wind-force sludge removal assembly are respectively provided between the outer tube (2) and the inner tube (3). The rotary sludge removal assembly includes a reduction motor (8) fixedly installed on the surface of the outer tube (2). A driving gear (9) is fixedly installed on the surface of the output shaft of the reduction motor (8). A driven gear ring (10) is fixedly installed on the surface of the inner tube (3). The driving gear (9) and the driven gear ring (10) are meshed with each other. The wind-force sludge removal assembly includes an air duct (11) rotatably connected to the left end of the inner tube (3). A connecting frame (12) is fixedly installed on the surface of the air duct (11). The connecting frame (12) is fixedly installed at the left end of the outer tube (2). An air pump (13) is fixedly installed at the left end of the air duct (11), and the output end of the air pump (13) faces the inside of the air duct (11). The right end of the air duct (11) extends into the inner tube (3) and is provided with air outlet holes (14).

2. The sludge dewatering machine for sewage treatment according to claim 1, characterized in that: A feed hopper (15) is fixedly installed at the right end of the outer tube (2). The discharge end of the feed hopper (15) is rotatably connected to the water inlet pipe (4).

3. The sludge dewatering machine for sewage treatment according to claim 1, characterized in that: A water storage tank (16) is fixedly installed on the surface of the base (1). The water outlet end of the drain pipe (7) is communicated with the water storage tank (16).

4. The sludge dewatering machine for sewage treatment according to claim 3, characterized in that: A drain pipe, a sewage discharge valve (17) and a liquid level window (18) are respectively provided on the surface of the water storage tank (16).

5. A sludge dewatering machine for sewage treatment according to claim 1, characterized in that: A stirring rod (19) is fixedly installed on the surface of the air duct (11). An inner scraping plate (20) is fixedly installed at the end of the stirring rod (19). The inner scraping plate (20) is in tight contact with the inner wall of the inner tube (3).

6. The sludge dewatering machine for sewage treatment according to claim 1, characterized in that: A limiting sliding groove is formed on the inner wall of the outer tube (2). An outer scraping plate (21) is slidably connected to the inner wall of the limiting sliding groove. The outer scraping plate (21) corresponds to the outer wall of the inner tube (3). A support spring (22) for driving the outer scraping plate (21) to be in tight contact with the outer wall of the inner tube (3) is provided inside the limiting sliding groove.

7. A sludge dewatering machine for sewage treatment according to claim 1, characterized in that: The outer tube (2) is rotatably connected to the top of the base (1). Two side plates (23) are fixedly installed on the surface of the base (1). A transverse lead screw (24) is rotatably connected between the two side plates (23). A servo motor (25) for driving the transverse lead screw (24) is fixedly installed on the surface of the side plate (23). A transverse slider (26) is threadedly connected to the surface of the transverse lead screw (24). A support rod (27) is rotatably connected to the surface of the transverse slider (26). The other end of the support rod (27) is rotatably connected to the surface of the outer tube (2).

8. A sludge dewatering machine for sewage treatment according to claim 7, characterized in that: A transverse sliding rod (28) is fixedly installed between the two side plates (23). The transverse slider (26) is slidably connected to the surface of the transverse sliding rod (28).

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