Municipal sludge solid-liquid separation dehydration device

Abstract

A municipal sludge solid-liquid separation dewatering device comprises a supporting frame, a dewatering cylinder is arranged on the supporting frame, a discharging port and a feeding box are arranged on the dewatering cylinder, an open groove is formed in the bottom of the dewatering cylinder, a water collecting cover is installed at the bottom of the dewatering cylinder, a drainage pipe is arranged on the water collecting cover, a filter screen cylinder is arranged in the dewatering cylinder, a fixing base is arranged on the dewatering cylinder, and a motor is arranged on the fixing base. The output end of the motor is connected with a rotating shaft arranged in the dewatering cylinder, spiral blades are arranged on the rotating shaft, and a damping material pressing structure is arranged at the end, away from the motor, of the rotating shaft. By the adoption of the structure, materials are evenly fed after being distributed, it is guaranteed that the feeding amount is even and stable in each time of dehydration processing, material blocking can be avoided, and the processing quality can be improved; inclined arrangement is adopted, gravity and centrifugal force are utilized for synchronous dehydration, and damping extrusion is matched for further dehydration before discharging, so that the dehydration efficiency is remarkably improved; the device is simple and stable in overall structure, low in energy consumption, convenient, practical and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal sludge treatment, in particular to a municipal sludge solid-liquid separation and dehydration device. Background Art

[0002] Sludge carbonization (blast furnace slag) is sludge collected from sewage treatment plants and formed through high-temperature treatment. As a new material, sludge carbonization undergoes mix ratio testing and quality stability control when converted into recycled building materials. Municipal sludge treatment requires dehydration, drying and incineration, and then adjustment of the mix ratio to form a new environmentally friendly building material. Traditional solid-liquid separation methods include natural sedimentation and mechanical filter presses, but these methods suffer from low efficiency, high processing costs, and large floor space requirements. Existing sludge solid-liquid separation equipment is prone to material blockage during the dehydration process, affecting its ability to operate continuously. Other equipment is less adaptable to sludge of different properties and cannot effectively meet diverse needs. Some equipment also consumes high energy during operation, which is not conducive to energy conservation and emission reduction. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a municipal sludge solid-liquid separation and dehydration device, which feeds the materials evenly after separation, ensuring that the feed amount of each dehydration process is uniform and stable, which can avoid material blockage and improve the processing quality; it is arranged obliquely, uses gravity and centrifugal force to dehydrate synchronously, and further dehydrates the materials before discharging with damping extrusion, which significantly improves the dehydration efficiency; the overall structure of the device is simple and stable, with low energy consumption, convenience and practicality, and strong practicality.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a municipal sludge solid-liquid separation and dewatering device, including a support frame, a dewatering cylinder is provided on the support frame, the dewatering cylinder is provided with a discharge port and a feed box, the bottom of the dewatering cylinder is provided with a slot and a water collecting cover is installed, the water collecting cover is provided with a drain pipe, a filter cylinder is provided in the dewatering cylinder, a fixed seat is provided on the dewatering cylinder, a motor is provided on the fixed seat, the output end of the motor is connected to a rotating shaft arranged in the dewatering cylinder, the rotating shaft is provided with spiral blades, and a damping pressing structure is provided at the end of the rotating shaft away from the motor.

[0005] In the preferred solution, the damping pressing structure includes a bearing positioning seat arranged at one end of the rotating shaft near the discharge port, and the bearing positioning seat is provided with a sliding pressure plate that slides with it. The sliding pressure plate is connected to the end of the dehydration cylinder through an elastic member, and positioning rods are symmetrically provided on the sliding pressure plate, and the positioning rods are positioned and matched with the end of the dehydration cylinder.

[0006] In a preferred solution, side ribs are provided on the outer edges of the spiral blades.

[0007] In the preferred solution, a first transmission wheel is provided on the output end of the motor, and the first transmission wheel cooperates with the second transmission wheel for transmission through a transmission belt. The second transmission wheel is arranged on the distribution shaft, and the distribution shaft is arranged on the feed box. The distribution shaft is provided with multiple groups of distribution plates.

[0008] In a preferred solution, the feed box is provided with a material dividing groove cooperating with the material dividing plate at a position close to the dehydration cylinder.

[0009] The municipal sludge solid-liquid separation and dehydration device provided by the utility model has the following beneficial effects by adopting the above structure:

[0010] (1) Feed the material evenly after dividing it to ensure that the feed amount for each dehydration process is uniform and stable, which can avoid blockage and improve processing quality;

[0011] (2) The machine is arranged in an oblique direction, using gravity and centrifugal force for simultaneous dehydration, and then further dehydrating by damping extrusion before discharging, which significantly improves the dehydration efficiency;

[0012] (3) The overall structure of the device is simple and stable, with low energy consumption, convenience, practicality and strong practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 This is a schematic diagram of the internal structure of the dehydration cylinder of the present utility model.

[0016] Figure 3 This is a schematic diagram of the damping pressing structure of the utility model.

[0017] In the figure: support frame 1, dewatering cylinder 2, discharge port 3, water collecting cover 4, drain pipe 5, feed box 6, material distribution clamping groove 7, fixed seat 8, motor 9, rotating shaft 10, spiral blade 11, side rib 12, filter cylinder 13, first transmission wheel 14, transmission belt 15, second transmission wheel 16, material distribution shaft 17, material distribution plate 18, bearing positioning seat 19, sliding pressure plate 20, elastic member 21, positioning rod 22. DETAILED DESCRIPTION

[0018] like Figure 1-3In the figure, a municipal sludge solid-liquid separation and dewatering device includes a support frame 1, a dewatering cylinder 2 is provided on the support frame 1, a discharge port 3 and a feed box 6 are provided on the dewatering cylinder 2, a groove is provided on the bottom of the dewatering cylinder 2 and a water collecting cover 4 is installed, a drain pipe 5 is provided on the water collecting cover 4, a filter cylinder 13 is provided in the dewatering cylinder 2, a fixed seat 8 is provided on the dewatering cylinder 2, a motor 9 is provided on the fixed seat 8, an output end of the motor 9 is connected to a rotating shaft 10 arranged in the dewatering cylinder 2, a spiral blade 11 is provided on the rotating shaft 10, and a damping pressing structure is provided at the end of the rotating shaft 10 away from the motor 9.

[0019] In a preferred embodiment, the damping pressing structure includes a bearing locating seat 19 disposed at one end of the rotating shaft 10 near the discharge port 3. The bearing locating seat 19 is provided with a sliding pressure plate 20 that slides with the bearing locating seat 19. The sliding pressure plate 20 is connected to the end of the dehydration cylinder 2 via an elastic member 21. The sliding pressure plate 20 is symmetrically provided with positioning rods 22 that are positioned and matched with the end of the dehydration cylinder 2. Damping extrusion is then used before discharge to further dehydrate the material, significantly improving dehydration efficiency.

[0020] In a preferred embodiment, the outer edge of the spiral blade 11 is provided with a side rib 12 to retain more solid waste and fully centrifuge and dehydrate.

[0021] In a preferred embodiment, a first transmission wheel 14 is provided on the output end of the motor 9, and the first transmission wheel 14 is driven by a second transmission wheel 16 through a transmission belt 15. The second transmission wheel 16 is provided on a material distribution shaft 17, which is provided on the feed box 6. The material distribution shaft 17 is provided with multiple groups of material plates 18. The material distribution is coordinated and evenly distributed.

[0022] In the preferred embodiment, the feed box 6 is provided with a material dividing groove 7 cooperating with the material dividing plate 18 near the position of the dehydration cylinder 2. After the material is divided, the material is fed evenly to ensure that the feed amount of each dehydration process is uniform and stable, which can avoid blockage and improve the processing quality.

[0023] The method of using the present invention is as follows: sludge is put into the feed box 6, and is fed evenly in cooperation with the material distribution structure. It enters the dewatering cylinder 2 and is continuously transported obliquely upward under the drive of the spiral blade 11. During the transportation process, it is continuously dehydrated by relying on the filter cylinder 13 under the cooperation of rotating centrifugal force and gravity. The dehydrated sludge is accumulated near the sliding pressure plate 20. After the accumulated sludge is continuously transported, the sliding pressure plate 20 is squeezed open with the cooperation of the elastic member 21 and further dehydrated. After a certain space is squeezed open, the dehydrated sludge is discharged through the discharge port 3.

[0024] The beneficial effects of the utility model are: uniform feeding after material division, ensuring uniform and stable feeding amount for each dehydration process, which can avoid material blockage and improve processing quality; oblique arrangement, synchronous dehydration by using gravity and centrifugal force, and further dehydration by damping extrusion before discharging, which significantly improves dehydration efficiency; the overall structure of the device is simple and stable, with low energy consumption, convenient and practical, and strong practicality.

Claims

1. A municipal sludge solid-liquid separation and dewatering device, comprising a support frame (1), characterized in that: The support frame (1) is provided with a dehydration cylinder (2), a discharge port (3) and a feed box (6) are provided on the dehydration cylinder (2), a groove is provided at the bottom of the dehydration cylinder (2) and a water collecting cover (4) is installed, a drainage pipe (5) is provided on the water collecting cover (4), a filter cylinder (13) is provided in the dehydration cylinder (2), a fixed seat (8) is provided on the dehydration cylinder (2), a motor (9) is provided on the fixed seat (8), an output end of the motor (9) is connected to a rotating shaft (10) arranged in the dehydration cylinder (2), a spiral blade (11) is provided on the rotating shaft (10), and a damping pressing structure is provided at the end of the rotating shaft (10) away from the motor (9).

2. The municipal sludge solid-liquid separation and dehydration device according to claim 1, characterized in that: The damping pressing structure includes a bearing positioning seat (19) arranged at one end of the rotating shaft (10) close to the discharge port (3), a sliding pressure plate (20) is provided on the bearing positioning seat (19) and is slidably matched with the bearing positioning seat (19), and the sliding pressure plate (20) is connected to the end of the dehydration cylinder (2) through an elastic member (21), and a positioning rod (22) is symmetrically provided on the sliding pressure plate (20), and the positioning rod (22) is positioned and matched with the end of the dehydration cylinder (2).

3. The municipal sludge solid-liquid separation and dehydration device according to claim 1, characterized in that: A side rib (12) is provided on the outer edge of the spiral blade (11).

4. The municipal sludge solid-liquid separation and dehydration device according to claim 1, characterized in that: A first transmission wheel (14) is provided on the output end of the motor (9), and the first transmission wheel (14) is driven by a second transmission wheel (16) through a transmission belt (15). The second transmission wheel (16) is provided on a material distribution shaft (17), and the material distribution shaft (17) is provided on the feed box (6). A plurality of material plates (18) are provided on the material distribution shaft (17).

5. The municipal sludge solid-liquid separation and dehydration device according to claim 1, characterized in that: The feed box (6) is provided with a material dividing clamping groove (7) that cooperates with the material dividing plate (18) at a position close to the dehydration cylinder (2).

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