Pretreatment equipment for sludge treatment

Abstract

The utility model relates to the technical field of sludge treatment, and discloses pretreatment equipment for sludge treatment, the inner wall of a crushing tank is fixedly connected with an isolation pipe, and the isolation pipe is provided with filtering holes. The crushing motor operates to drive the rotating rod to rotate, the rotating rod drives the mounting ring to rotate, the mounting ring drives the crushing cutter to rotate, sludge impurities can be crushed, the sludge impurities reaching the qualified size can fall to the bottom of the crushing tank through the filtering holes in the isolation pipe, the unqualified sludge impurities can be left at the bottom of the isolation pipe, and meanwhile, the crushing efficiency is improved. The rotating rod can drive the fixing plate to rotate, the fixing plate drives the scraper to rotate, the scraper rotates around the inner wall of the isolation pipe to drive unqualified sludge impurities at the bottom of the crushing tank to the upper portion of the crushing cutter due to the fact that the front portion of the scraper is low and the rear portion of the scraper is high, and when the scraper rotates to the front portion of the scraper is high and the rear portion of the scraper is low, sludge on the scraper falls onto the crushing cutter to be crushed again. Therefore, the sludge impurities can be completely crushed into qualified sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge treatment, and in particular to a pretreatment device for sludge treatment. Background Art

[0002] Urban sewage treatment plants produce huge amounts of sludge. Although it has value in resource utilization, it also contains harmful substances. There are high risks in stacking or landfilling, and the cost of treatment and disposal is high. Therefore, how to use sludge safely, economically and scientifically has become a research topic that countries around the world are paying close attention to.

[0003] In sludge treatment, sludge usually needs to be initially treated and crushed to facilitate subsequent treatment and disposal. However, some existing crushing devices make it difficult to crush the sludge located at the bottom and around the inner wall of the crushing tank, which affects the subsequent treatment of the sludge. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a pretreatment device for sludge treatment.

[0005] The utility model is implemented by the following technical solutions: a pretreatment equipment for sludge treatment, the inner wall of the crushing tank is fixedly connected to an isolation tube, a filter hole is opened on the isolation tube, a crushing motor is fixedly connected to the left side of the crushing tank, the output end of the crushing motor is rotatably connected to the inside of the crushing tank, the output end of the crushing motor is fixedly connected to a rotating rod, the end of the rotating rod away from the crushing motor is rotatably connected to the right side of the inside of the crushing tank, the outer wall of the rotating rod is fixedly connected to a mounting ring, the outer wall of the mounting ring is fixedly connected to a crushing knife, the outer wall of the rotating rod is fixedly connected to a fixing plate, two fixing plates are provided, and a scraper is fixedly connected to the side of the two fixing plates close to each other, and the bottom of the scraper is in contact with the inner wall of the isolation tube.

[0006] Through the above technical solution, the crushing motor drives the rotating stem to rotate, the rotating stem drives the mounting ring to rotate, and the mounting ring drives the crushing knife to rotate, thereby crushing the sludge.

[0007] As a further improvement of the above solution, the isolation tube is coaxial with the crushing tank, the crushing motor is located at the center axis of the crushing tank, the rotating rod is located at the center axis of the crushing tank, the mounting ring is located between two fixed plates, and the crushing knife is "L" shaped.

[0008] As a further improvement of the above solution, a servo motor is fixedly connected to the left side of the crushing tank, an output end of the servo motor is rotatably connected to the inside of the crushing tank, and a threaded rod is fixedly connected to the output end of the servo motor.

[0009] As a further improvement of the above scheme, the end of the threaded rod away from the servo motor is rotatably connected to the right side of the crushing tank, the inner wall of the crushing tank is fixedly connected to a sliding rod, the outer wall of the sliding rod is slidably connected to a push plate, the inside of the push plate is threadedly connected to the outer wall of the threaded rod, and the bottom of the feed port is in contact with the inner wall of the crushing tank.

[0010] Through the above technical solution, the push plate can be limited by the sliding rod to prevent the push plate from rotating, so that when the threaded rod rotates, the push plate can move along the threaded rod.

[0011] As a further improvement of the above solution, the threaded rod is parallel to the sliding rod, two sliding rods are provided, and the two sliding rods are symmetrically arranged with the threaded rod as the center. The threaded rod and the sliding rod are both located between the crushing tank and the isolation tube, and the push plate is located between the crushing tank and the isolation tube.

[0012] As a further improvement of the above solution, a feed port is provided at the top of the crushing tank, the feed port passes through the inner wall of the crushing tank and extends to the inside of the isolation tube, a discharge port is provided at the bottom of the crushing tank, a fixing frame is fixedly connected to the bottom of the crushing tank, and a fixing rod is fixedly connected to the bottom of the fixing frame.

[0013] Through the above technical solution, the sludge can be pushed toward the discharge port by moving the push plate, thereby facilitating the discharge of the crushed sludge from the crushing tank.

[0014] As a further improvement of the above solution, the feed port is located at the central axis of the crushing tank, and two discharge ports are provided, and the two discharge ports are symmetrically arranged around the center of the crushing tank.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model drives the rotating rod to rotate through the operation of the crushing motor, and the rotating rod drives the mounting ring to rotate, and the mounting ring drives the crushing knife to rotate, so that the sludge impurities can be crushed. When the sludge impurities reach the qualified size, they will fall to the bottom of the crushing tank through the filter holes on the isolation tube, while unqualified sludge impurities will remain at the bottom of the isolation tube. At the same time, the rotating rod will drive the fixed plate to rotate, and the fixed plate will drive the scraper to rotate. Because the scraper is set low at the front and high at the back, when the scraper rotates around the inner wall of the isolation tube, the unqualified sludge impurities at the bottom of the crushing tank are driven to the top of the crushing knife. When the scraper rotates to the position high at the front and low at the back, the sludge on the scraper will fall onto the crushing knife and be crushed again, thereby ensuring that the sludge impurities can be completely crushed to the qualified size.

[0017] The utility model drives the threaded rod to rotate through the operation of the servo motor. The sliding rod limits the push plate to prevent the push plate from rotating. Therefore, when the threaded rod rotates, the push plate will move back and forth along the threaded rod. When the push plate moves to the right, the crushed sludge at the bottom of the crushing tank will be pushed to the right discharge port for discharge. When the push plate moves to the left, the crushed sludge at the bottom of the crushing tank will be pushed to the left for discharge, which is convenient for discharging the crushed sludge in the crushing tank and prevents the sludge at the bottom of the crushing tank from accumulating and affecting the crushing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the crushing tank of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the isolation tube of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the crushing knife of the utility model;

[0022] Figure 5 This is a schematic diagram of the push plate structure of the utility model.

[0023] Description of main symbols:

[0024] 1. Crushing tank; 2. Isolation tube; 3. Filter hole; 4. Crushing motor; 5. Rotating rod; 6. Mounting ring; 7. Crushing knife; 8. Fixed plate; 9. Scraper; 10. Servo motor; 11. Threaded rod; 12. Sliding rod; 13. Push plate; 14. Feed port; 15. Discharge port; 16. Fixed bracket; 17. Fixed rod. DETAILED DESCRIPTION

[0025] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] Example:

[0027] Please combine Figure 1-5, a pretreatment equipment for sludge treatment in this embodiment includes a crushing tank 1, an isolation tube 2 is fixedly connected to the inner wall of the crushing tank 1, a filter hole 3 is opened on the isolation tube 2, a crushing motor 4 is fixedly connected to the left side of the crushing tank 1, the output end of the crushing motor 4 is rotatably connected to the inside of the crushing tank 1, and the output end of the crushing motor 4 is fixedly connected to a rotating rod 5, and the end of the rotating rod 5 away from the crushing motor 4 is rotatably connected to the right side of the inside of the crushing tank 1, a mounting ring 6 is fixedly connected to the outer wall of the rotating rod 5, a crushing knife 7 is fixedly connected to the outer wall of the mounting ring 6, and a fixing plate 8 is fixedly connected to the outer wall of the rotating rod 5. Two fixing plates 8 are provided, and a scraper 9 is fixedly connected to the side close to each other of the two fixing plates 8, and the bottom of the scraper 9 contacts the inner wall of the isolation tube 2.

[0028] The isolation tube 2 is coaxial with the crushing tank 1, the crushing motor 4 is located at the center axis of the crushing tank 1, the rotating rod 5 is located at the center axis of the crushing tank 1, the mounting ring 6 is located between the two fixing plates 8, and the crushing knife 7 is "L" shaped.

[0029] A servo motor 10 is fixedly connected to the left side of the crushing tank 1 , and an output end of the servo motor 10 is rotatably connected to the inside of the crushing tank 1 . A threaded rod 11 is fixedly connected to the output end of the servo motor 10 .

[0030] The end of the threaded rod 11 away from the servo motor 10 is rotatably connected to the right side inside the crushing tank 1. The inner wall of the crushing tank 1 is fixedly connected to the sliding rod 12, and the outer wall of the sliding rod 12 is slidably connected to the push plate 13. The inside of the push plate 13 is threadedly connected to the outer wall of the threaded rod 11, and the bottom of the feed port 14 contacts the inner wall of the crushing tank 1.

[0031] The threaded rod 11 is parallel to the sliding rod 12. There are two sliding rods 12. The two sliding rods 12 are symmetrically arranged with the threaded rod 11 as the center. The threaded rod 11 and the sliding rod 12 are both located between the crushing tank 1 and the isolation tube 2. The push plate 13 is located between the crushing tank 1 and the isolation tube 2.

[0032] A feed port 14 is connected to the top of the crushing tank 1, which passes through the inner wall of the crushing tank 1 and extends to the inside of the isolation tube 2. A discharge port 15 is connected to the bottom of the crushing tank 1. A fixing frame 16 is fixedly connected to the bottom of the crushing tank 1, and a fixing rod 17 is fixedly connected to the bottom of the fixing frame 16.

[0033] The feed port 14 is located at the central axis of the crushing tank 1 , and two discharge ports 15 are provided. The two discharge ports 15 are symmetrically arranged around the center of the crushing tank 1 .

[0034] The implementation principle of a pretreatment equipment for sludge treatment in the embodiment of the present application is as follows: when in use, sludge is added through the feed port 14, and the sludge will fall into the interior of the isolation tube 2, and then the crushing motor 4 and the servo motor 10 are started. The operation of the crushing motor 4 drives the rotating rod 5 to rotate, and the rotating rod 5 drives the mounting ring 6 to rotate, and the mounting ring 6 drives the crushing knife 7 to rotate, which can crush the sludge impurities. When the sludge impurities reach the qualified size, they will fall to the bottom of the crushing tank 1 through the filter holes 3 on the isolation tube 2, and the unqualified sludge impurities will remain at the bottom of the isolation tube 2. At the same time, the rotating rod 5 will drive the fixed plate 8 to rotate, and the fixed plate 8 will drive the scraper 9 to rotate. Because the scraper 9 is set low in the front and high in the back, when the scraper 9 rotates around the inner wall of the isolation tube 2, the unqualified sludge impurities at the bottom of the crushing tank 1 will be removed. The mud impurities drive the upper part of the crushing knife 7. When the scraper 9 rotates to a position where the front is high and the back is low, the sludge on the scraper 9 will fall onto the crushing knife 7 and be crushed again, thereby ensuring that the sludge impurities can be completely crushed to a qualified size. At the same time, the servo motor 10 drives the threaded rod 11 to rotate. Because the slide bar 12 will limit the push plate 13, thereby preventing the push plate 13 from rotating, the push plate 13 will move back and forth along the threaded rod 11 when the threaded rod 11 rotates. When the push plate 13 moves to the right, the crushed sludge at the bottom of the crushing tank 1 will be pushed to the right discharge port 15 for discharge. When the push plate 13 moves to the left, the crushed sludge at the bottom of the crushing tank 1 will be pushed to the left for discharge, which is convenient for discharging the crushed sludge in the crushing tank 1 and preventing the sludge at the bottom of the crushing tank 1 from accumulating and affecting the crushing efficiency.

[0035] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A pretreatment device for sludge treatment, characterized in that: The invention comprises a crushing tank (1), wherein an isolation tube (2) is fixedly connected to the inner wall of the crushing tank (1), a filter hole (3) is provided on the isolation tube (2), a crushing motor (4) is fixedly connected to the left side of the crushing tank (1), an output end of the crushing motor (4) is rotatably connected to the inside of the crushing tank (1), a rotating rod (5) is fixedly connected to the output end of the crushing motor (4), an end of the rotating rod (5) away from the crushing motor (4) is rotatably connected to the right side of the inside of the crushing tank (1), a mounting ring (6) is fixedly connected to the outer wall of the rotating rod (5), a crushing knife (7) is fixedly connected to the outer wall of the mounting ring (6), a fixing plate (8) is fixedly connected to the outer wall of the rotating rod (5), two fixing plates (8) are provided, and a scraper (9) is fixedly connected to the side of the two fixing plates (8) close to each other, and the bottom of the scraper (9) contacts the inner wall of the isolation tube (2).

2. The pretreatment equipment for sludge treatment according to claim 1, characterized in that: The isolation tube (2) is coaxial with the crushing tank (1), the crushing motor (4) is located at the center axis of the crushing tank (1), the rotating rod (5) is located at the center axis of the crushing tank (1), the mounting ring (6) is located between two fixing plates (8), and the crushing knife (7) is in an "L" shape.

3. The pretreatment equipment for sludge treatment according to claim 1, characterized in that: A servo motor (10) is fixedly connected to the left side of the crushing tank (1), and an output end of the servo motor (10) is rotatably connected to the inside of the crushing tank (1), and a threaded rod (11) is fixedly connected to the output end of the servo motor (10).

4. The pretreatment equipment for sludge treatment according to claim 3, characterized in that: The end of the threaded rod (11) away from the servo motor (10) is rotatably connected to the right side of the crushing tank (1), the inner wall of the crushing tank (1) is fixedly connected to a slide rod (12), the outer wall of the slide rod (12) is slidably connected to a push plate (13), the inner part of the push plate (13) is threadedly connected to the outer wall of the threaded rod (11), and the bottom of the feed port (14) is in contact with the inner wall of the crushing tank (1).

5. The pretreatment equipment for sludge treatment according to claim 3, characterized in that: The threaded rod (11) is parallel to the sliding rod (12), two sliding rods (12) are provided, and the two sliding rods (12) are symmetrically arranged with the threaded rod (11) as the center. The threaded rod (11) and the sliding rod (12) are both located between the crushing tank (1) and the isolation tube (2), and the push plate (13) is located between the crushing tank (1) and the isolation tube (2).

6. The pretreatment equipment for sludge treatment according to claim 1, characterized in that: The top of the crushing tank (1) is connected to a feed port (14), the feed port (14) passes through the inner wall of the crushing tank (1) and extends to the interior of the isolation tube (2), the bottom of the crushing tank (1) is connected to a discharge port (15), the bottom of the crushing tank (1) is fixedly connected to a fixing frame (16), and the bottom of the fixing frame (16) is fixedly connected to a fixing rod (17).

7. The pretreatment equipment for sludge treatment according to claim 6, characterized in that: The feed port (14) is located at the center axis of the crushing tank (1), and two discharge ports (15) are provided. The two discharge ports (15) are symmetrically arranged around the center of the crushing tank (1).

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