A slurry dewatering device

Abstract

This utility model discloses a sludge dewatering device, including a belt filter press. The belt filter press is equipped with a spraying mechanism and a filter belt cleaning mechanism. The belt filter press includes an equipment frame, an upper filter belt, a lower filter belt, and filter rollers. The filter rollers, upper filter belt, and lower filter belt are mounted on the equipment frame. A sludge inlet is provided at the upper end of the equipment frame, and a sludge outlet is provided on the side of the equipment frame. The filter belt cleaning mechanism includes a drying cylinder, a blower, a heating wire, a striking roller, and a motor. The drying cylinder is located on the upper and lower sides of the lower filter belt. The heating wire is installed inside the drying cylinder. The blower is connected to the drying cylinder through a ventilation pipe. An air outlet is provided on the drying cylinder near the lower filter belt end. The motor is fixedly mounted on the equipment frame. This utility model has the advantages of high-efficiency dewatering, automatic filter belt cleaning, and simple operation, solving the problems of easy clogging of filter belt pores, low dewatering efficiency, and reliance on manual cleaning in traditional equipment when treating river and lake sludge.

Description

Technical Field

[0001] This utility model relates to the field of belt filter press technology, specifically to a mud dewatering device. Background Technology

[0002] Rivers and lakes are vital resources for sustaining life, playing a crucial role in agricultural production, industrial development, and climate regulation. However, with rapid economic and social development and accelerated urbanization and industrialization, industrial wastewater and domestic sewage are directly discharged, resulting in large amounts of pollutants entering water bodies and damaging aquatic ecosystems; black and smelly water bodies and eutrophication are common occurrences.

[0003] For the treatment of sludge from rivers and lakes, belt filter presses and other equipment are currently widely used sludge dewatering methods. However, when processing sludge from rivers and lakes, the small size of the sludge particles easily causes blockage of the filter belt pores, leading to a decrease in dewatering efficiency and reducing the working efficiency of the equipment. Traditional cleaning methods mostly rely on manual washing or simple rinsing devices, which cannot completely remove the residue on the filter belt and affect the subsequent use effect. Therefore, a sludge dewatering device is needed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a mud dewatering device that has the advantages of high efficiency dewatering, automatic filter belt cleaning, and simple operation. It solves the problems of easy clogging of filter belt pores, low dewatering efficiency, and reliance on manual cleaning when traditional equipment is used to treat river and lake sludge.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mud dewatering device, including a belt filter press, wherein the belt filter press is equipped with a spraying mechanism and a filter belt cleaning mechanism;

[0006] The belt filter press includes a frame, an upper filter belt, a lower filter belt, and a filter roller. The filter roller, upper filter belt, and lower filter belt are mounted on the frame. A slurry inlet is provided at the upper end of the frame, and a sludge outlet is provided on the side of the frame. The filter belt cleaning mechanism includes a drying cylinder, a blower, a heating wire, a striking roller, and a motor. The drying cylinder is located on the upper and lower sides of the lower filter belt. The heating wire is installed inside the drying cylinder. The blower is connected to the drying cylinder through a ventilation pipe. An air outlet is provided on the drying cylinder near the lower filter belt. The motor is fixedly mounted on the frame, and the striking roller is mounted on the output shaft of the motor. The motor drives the striking roller to strike the lower filter belt.

[0007] As a preferred embodiment of the mud dewatering device of this utility model, the drying cylinder is made of aluminum alloy, heat exchange plates are evenly arranged inside the drying cylinder, and the heating wire is attached to the inner wall of the drying cylinder.

[0008] As a preferred embodiment of the mud dewatering device of this utility model, the outer side of the drying cylinder is provided with a scraper that slides in contact with the lower end face of the lower filter belt.

[0009] As a preferred embodiment of the mud dewatering device of this utility model, the outer side of the striking roller is uniformly provided with a circumferential array of striking strips, and a connecting rod is provided to fix the striking strips and the striking roller.

[0010] As a preferred embodiment of the mud dewatering device of this utility model, the outer end face of the striking bar is uniformly provided with bristles.

[0011] In a preferred embodiment of the mud dewatering device of this utility model, the connecting rod and the striking bar are made of rubber, and the brush bristles are made of nylon.

[0012] As a preferred embodiment of the mud dewatering device of this utility model, the spraying mechanism includes a spray pipe and a splash guard, with the spray pipe installed at the lower end of the splash guard.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model solves the problem of reduced dewatering efficiency caused by filter pore blockage by the synergistic action of the drying drum, heating wire, blower and striking roller. The drying drum delivers hot air to the filter belt, causing the sludge stuck in the filter pores to dewater and shrink quickly. Subsequently, the motor-driven striking roller continuously beats the filter belt by rotating striking strips. Combined with the nylon bristles at the end of the striking strips inserting into the filter pores, the dried and shrunken sludge is completely pushed out. This structure not only avoids long-term blockage of the filter pores, but also reduces the rigid impact on the filter belt through the rubber striking strips and connecting rods, thus protecting the integrity of the filter belt and ensuring its continuous and efficient operation.

[0015] 2. This utility model significantly improves heat transfer efficiency by using heat exchange fins made of aluminum alloy inside the drying cylinder and tightly fitting them with the heating wires. This allows the airflow from the blower to heat up rapidly, completing the drying of the filter belt in a short time. At the same time, the device adopts a dual mode combining spray rinsing and mechanical cleaning: when the water source is sufficient, the spray pipe, together with the splash guard, directly rinses the filter belt; when the water source is insufficient, it switches to a mechanical cleaning method of drying and tapping. The scraper structure further assists in removing large pieces of sludge from the surface of the filter belt, preventing residues from interfering with subsequent cleaning. This design takes into account resource conditions under different environments, solves the limitations of traditional equipment that relies on a single cleaning method, and improves the flexibility and environmental adaptability of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is a schematic diagram of the filter belt cleaning mechanism of this utility model;

[0019] Figure 4 For the present utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 5 For the present utility model Figure 3 Enlarged view of section B in the middle.

[0021] In the diagram: 1. Belt filter press; 101. Equipment frame; 102. Upper filter belt; 103. Lower filter belt; 1031. Filter holes; 104. Slurry inlet; 105. Filter roller; 106. Sludge outlet; 2. Spraying mechanism; 201. Spray pipe; 202. Splash shield; 3. Filter belt cleaning mechanism; 301. Drying cylinder; 3011. Heat exchange plate; 3012. Air outlet; 302. Impact roller; 3021. Connecting rod; 3022. Impact bar; 3023. Brush bristles; 303. Blower; 304. Ventilation pipe; 305. Motor; 306. Scraper; 307. Heating wire. Detailed Implementation

[0022] Please see Figures 1-5 A mud dewatering device includes a belt filter press 1, on which a spraying mechanism 2 and a filter belt cleaning mechanism 3 are provided;

[0023] The belt filter press 1 includes a frame 101, an upper filter belt 102, a lower filter belt 103, and a filter roller 105. The filter roller 105, the upper filter belt 102, and the lower filter belt 103 are mounted on the frame 101. A slurry inlet 104 is provided at the upper end of the frame 101, and a sludge outlet 106 is provided on the side of the frame 101. The filter belt cleaning mechanism 3 includes a drying cylinder 301, a blower 303, a heating wire 307, a striking roller 302, and a motor 305. Drying cylinder 301 is located on the upper and lower sides of the lower filter belt 103. Heating wire 307 is installed inside the drying cylinder 301. Blower 303 is connected to drying cylinder 301 through ventilation pipe 304. Air outlet 3012 is provided at the end of drying cylinder 301 near the lower filter belt 103. Motor 305 is fixedly installed on equipment frame 101. Striking roller 302 is installed on the output shaft of motor 305. Motor 305 drives striking roller 302 to strike the lower filter belt 103.

[0024] After the upper filter belt 102 and the lower filter belt 103 filter the sludge, the sludge lumps are discharged from the sludge outlet 106. The blower 303 ventilates the drying cylinder 301, and the lower filter belt 103 is dried after being heated by the heating wire 307. This heats and dries the sludge stuck in the filter holes 1031 of the lower filter belt 103, causing the sludge to dehydrate and shrink. Then, the electric impact roller 302 of the motor 305 strikes the lower filter belt 103, thereby shaking off the sludge in the filter holes 1031, so that the lower filter belt 103 maintains high permeability and continuously and efficiently dewaters the sludge.

[0025] Furthermore, the drying cylinder 301 is made of aluminum alloy, and heat exchange plates 3011 are evenly arranged inside the drying cylinder 301. The heating wire 307 is attached to the inner wall of the drying cylinder 301.

[0026] The drying cylinder 301 is heated by the heating wire 307, and the drying cylinder 301 heats the airflow blown out by the blower 303 through the heat exchange plate 3011. The aluminum alloy drying cylinder 301 greatly improves the heat conduction efficiency, and the heat exchange plate 3011 increases the contact area with the air, so that the airflow can be heated up quickly in a short time, greatly improving the heating efficiency.

[0027] Furthermore, a scraper 306 is provided on the outer side of the drying cylinder 301, which slides in contact with the lower end face of the lower filter belt 103.

[0028] Large clumps of sludge attached to the surface of the lower filter belt 103 are removed by scraper 306, thereby avoiding the residue of large clumps of sludge that would affect the cleaning effect of the filter belt cleaning mechanism 3.

[0029] Furthermore, the outer side of the striking roller 302 is uniformly provided with a circumferential array of striking strips 3022, and a connecting rod 3021 is provided to fix the striking strips 3022 and the striking roller 302.

[0030] The striking roller 302 drives the striking bar 3022 to rotate, causing the striking bar 3022 to continuously strike the filter belt 103, thereby knocking off the dried sludge remaining in the filter holes 1031 after drying in the drying cylinder 301, keeping it permeable.

[0031] Furthermore, the outer end face of the striking bar 3022 is evenly provided with bristles 3023.

[0032] When the striking bar 3022 strikes the lower filter belt 103, the bristles 3023 can be inserted into the filter holes 1031 of the lower filter belt 103 to push out the clumps of sludge, thereby further improving the cleaning effect of the equipment on sludge.

[0033] Furthermore, the connecting rod 3021 and the striking bar 3022 are made of rubber, while the bristles 3023 are made of nylon.

[0034] The rubber connecting rod 3021 and the striking strip 3022 are made of soft material. When striking the lower filter belt 103, they can undergo elastic deformation and pass over the lower filter belt 103 to strike again, reducing the expansion and contraction fluctuation of the lower filter belt 103 caused by the striking. The nylon bristles 3023 have good wear resistance and a certain degree of hardness, which can push out the sludge in the filter holes 1031.

[0035] Furthermore, the spraying mechanism 2 includes a spray pipe 201 and a splash guard 202, with the spray pipe 201 installed at the lower end of the splash guard 202.

[0036] When there is sufficient water around the equipment, the lower filter belt 103 and the upper filter belt 102 can be rinsed by the spray mechanism 2. When there is insufficient water, the filter belt cleaning mechanism 3 can be used for drying and tapping treatment. The dual cleaning methods can be freely selected.

[0037] When using this device, the slurry is first input through the slurry inlet 104 at the top of the equipment frame 101. At this time, the upper filter belt 102 and the lower filter belt 103 operate on the equipment frame 101, working with the filter press roller 105 to filter the slurry. The filtered sludge is discharged from the sludge outlet 106 on the side of the equipment frame 101. If there is sufficient water around the equipment, the spray mechanism 2 can be turned on to wash the lower filter belt 103 and the upper filter belt 102 through the spray pipe 201. If there is insufficient water, only the filter belt cleaning mechanism 3 is activated. When the filter belt cleaning mechanism 3 is working, the blower 303 first ventilates the drying cylinder 301. The heating wire 307 inside the drying cylinder 301 heats the incoming air. Since the drying cylinder 301 is made of aluminum alloy and has uniformly arranged heat exchange fins 3011 inside, and the heating wire 307 is in close contact with the inner wall of the drying cylinder 301, it can greatly improve the conductivity. In terms of heat and heating efficiency, hot air blown down the filter belt 103 heats and dries the sludge stuck in the filter holes 1031 of the filter belt 103, causing it to dehydrate and shrink. Then, the motor 305 drives the striking roller 302 mounted on its output shaft to rotate. The striking strips 3022 arranged in a circular array on the outer side of the striking roller 302 are continuously patted by the connecting rod 3021, knocking off the dry sludge remaining in the filter holes 1031 after drying. The bristles 3023 evenly arranged on the outer end face of the striking strips 3022 can be inserted into the filter holes 1031 of the filter belt 103 during the patting, pushing out the clumps of sludge. In addition, the scraper 306 on the outer side of the drying cylinder 301 slides in contact with the lower end face of the filter belt 103 to remove large pieces of sludge attached to the surface of the filter belt 103, ensuring that the filter belt 103 maintains high permeability and continuously and efficiently dewaters the subsequent sludge.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mud dewatering device, comprising a belt filter press (1), characterized in that: The belt filter press (1) is equipped with a spraying mechanism (2) and a filter belt cleaning mechanism (3); The belt filter press (1) includes a frame (101), an upper filter belt (102), a lower filter belt (103), and a filter roller (105). The filter roller (105), the upper filter belt (102), and the lower filter belt (103) are mounted on the frame (101). A sludge inlet (104) is provided at the upper end of the frame (101), and a sludge outlet (106) is provided on the side of the frame (101). The filter belt cleaning mechanism (3) includes a drying cylinder (301), a blower (303), a heating wire (307), and a hammer. The equipment includes a roller (302) and a motor (305). The drying cylinder (301) is located on the upper and lower sides of the lower filter belt (103). The heating wire (307) is installed inside the drying cylinder (301). The blower (303) is connected to the drying cylinder (301) through a ventilation pipe (304). An air outlet (3012) is provided at the end of the drying cylinder (301) near the lower filter belt (103). The motor (305) is fixedly installed on the equipment frame (101). The striking roller (302) is installed on the output shaft of the motor (305).

2. The mud dewatering device as described in claim 1, characterized in that: The drying cylinder (301) is made of aluminum alloy. Heat exchange plates (3011) are evenly arranged inside the drying cylinder (301), and the heating wire (307) is attached to the inner wall of the drying cylinder (301).

3. The mud dewatering device as described in claim 2, characterized in that: The outer side of the drying cylinder (301) is provided with a scraper (306) that slides in contact with the lower end face of the lower filter belt (103).

4. The mud dewatering device as described in claim 1, characterized in that: The outer side of the striking roller (302) is uniformly provided with a circular array of striking strips (3022), and a connecting rod (3021) is provided to fix the striking strips (3022) and the striking roller (302).

5. The mud dewatering device as described in claim 4, characterized in that: The outer end face of the striking bar (3022) is uniformly provided with bristles (3023).

6. The mud dewatering device as described in claim 5, characterized in that: The connecting rod (3021) and the striking bar (3022) are made of rubber, and the bristles (3023) are made of nylon.

7. The mud dewatering device as described in claim 1, characterized in that: The spraying mechanism (2) includes a spray pipe (201) and a splash guard (202), with the spray pipe (201) installed at the lower end of the splash guard (202).

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