Sludge dewatering device

Abstract

The utility model discloses a sludge dewatering device which comprises a base, a sludge conditioning tank, a main body rack, a plurality of guide rollers, at least one transmission roller, a transmission roller driving mechanism, filter cloth and a shunting baffle plate assembly, a water collecting tank with the center sunken inwards is arranged on the upper surface of the base, and a drainage channel communicated with the water collecting tank is arranged on the side edge of the base; the sludge conditioning tank is mounted on the base, a material feeding opening is formed in the top of the sludge conditioning tank, and a discharging opening is formed in the side wall of the sludge conditioning tank; the main body rack is mounted on the base, one side of the main body rack is communicated with a discharge hole of the sludge conditioning tank through a pipeline, and a drain hole is formed in the side edge of the bottom of the main body rack; the guide roller is rotationally mounted in the main body rack; the transmission roller is rotationally mounted in the main body rack; and the transmission roller driving mechanism is mounted on the main body rack. The sludge dewatering efficiency can be improved, and dewatering is more uniform and stable.

Description

Technical Field

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

[0002] Currently, sludge dewatering is a key step in wastewater treatment, aiming to reduce sludge volume, lower treatment costs, and achieve sludge resource utilization. Mainstream technologies include mechanical dewatering methods such as belt filter presses, centrifugal dewatering machines, and plate and frame filter presses. However, these technologies generally suffer from high energy consumption, large amounts of chemicals used, and unstable dewatering efficiency.

[0003] After searching the existing technology, it was found that Chinese patent CN210560021U discloses a gravity dewatering machine for shear-type sludge dewatering. The patent uses scrapers to remove residual moisture on the conveying filter cloth. However, it was found that the sludge is prone to uneven distribution during the conveying process, which affects the dewatering effect. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a sludge dewatering device that can improve sludge dewatering efficiency and make dewatering more uniform and stable.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a sludge dewatering device, comprising:

[0006] The base has a water collection trough recessed inward on its upper surface and a drainage channel connected to the water collection trough on its side.

[0007] A sludge conditioning tank is mounted on the base. The top of the sludge conditioning tank is provided with a material inlet, and the side wall is provided with a discharge outlet.

[0008] The main frame is mounted on the base. One side of the main frame is connected to the discharge port of the sludge conditioning tank through a pipe. The bottom side of the main frame is provided with a drainage hole.

[0009] Multiple guide rollers are rotatably mounted within the main frame;

[0010] At least one drive roller is rotatably mounted within the main frame;

[0011] A drive roller mechanism is mounted on the main frame and is connected to the drive roller in a transmission connection.

[0012] A filter cloth is mounted around the plurality of guide rollers and the drive rollers to form a separating conveyor belt;

[0013] The diversion baffle assembly is mounted on the main frame. The diversion baffle assembly includes a support rod spanning the left and right sides of the filter cloth, and multiple wedge-shaped baffles installed at equal intervals along the length of the support rod. The multiple wedge-shaped baffles are symmetrically arranged along the central axis of the support rod, wherein the wedge-shaped baffles on opposite sides have a V-shaped structure.

[0014] Furthermore, the filter cloth is inclined upward along the material conveying direction.

[0015] Furthermore, the sludge dewatering device also includes a stirring mechanism, which is installed on the sludge conditioning tank, and the stirring mechanism includes:

[0016] A stirring motor is mounted on the sludge conditioning tank, and the stirring motor is provided with an output shaft;

[0017] A stirring shaft, one end of which is connected to the output shaft of the stirring motor;

[0018] A stirring blade is mounted on the stirring shaft.

[0019] Furthermore, in order to clean the filter cloth after the conveying process is completed, the sludge dewatering device also includes a scraper, which is installed on the main frame and located at the outlet of the separation conveyor belt formed by the filter cloth.

[0020] Furthermore, a specific structure for a tension adjustment mechanism is provided. The sludge dewatering device further includes a first tension adjustment mechanism, which comprises:

[0021] A pair of sliding guide frames are installed on the two side walls of the main frame, and the sliding guide frames are provided with roller guide grooves;

[0022] An adjusting roller is disposed inside the separating conveyor belt of the filter cloth;

[0023] A pair of rollers, rotatably mounted on both ends of the adjusting roller, the rollers being adapted to slide within the roller guide grooves;

[0024] At least one telescopic rod, one end of which is hinged to the outside of the roller and the other end of which is hinged to the main frame.

[0025] Furthermore, the sludge dewatering device also includes a second tension adjustment mechanism, which includes:

[0026] A pair of sliding supports are mounted on the two side walls of the main frame, and guide rails are provided on the sliding supports;

[0027] Tensioning roller, the tensioning roller being disposed inside the separating conveyor belt of the filter cloth;

[0028] A pair of sliding connecting blocks are installed at the corresponding ends of the tensioning rollers, and the sliding connecting blocks are slidably engaged with the guide rail;

[0029] At least one telescopic drive assembly, one end of which is hinged to the main frame and the other end of which is hinged to the corresponding sliding connecting block.

[0030] Furthermore, the transmission roller drive mechanism includes:

[0031] A drive source, which is mounted on the main frame and has an output terminal;

[0032] The gearbox has an input end and an output end. The input end of the gearbox is connected to the output end of the drive source, and the output end of the gearbox is connected to the transmission roller.

[0033] Furthermore, the sludge dewatering device also includes at least one side baffle, which is installed on the main frame and located on both sides of the filter cloth.

[0034] Furthermore, the sludge dewatering device also includes a ladder, which is installed outside the main frame.

[0035] By adopting the above technical solution, this utility model has the following beneficial effects:

[0036] In this invention, sludge enters the main frame through a sludge conditioning tank. A drive roller drives the filter cloth to circulate along the guide roller, gradually dewatering the sludge on the filter cloth. Wedge-shaped baffles in the diversion baffle assembly evenly distribute the sludge during transport, preventing localized accumulation and improving dewatering efficiency. Wastewater is collected through drainage holes on the bottom side of the main frame and a water collection trough on the base, and discharged through a drainage channel, thus separating sludge and water and improving sludge dewatering efficiency.

[0037] In addition, the mixing mechanism ensures that the sludge is fully mixed before entering the main frame, improving the uniformity of subsequent dewatering; the scraper effectively cleans residual sludge on the filter cloth, preventing clogging; the cooperation of the first and second tension adjustment mechanisms ensures that the filter cloth is always kept in an appropriate tension, ensuring conveying stability; the drive roller mechanism uses a drive source and a reduction gearbox to drive the drive roller, making the filter cloth run smoothly and the dewatering process controllable; the side baffle prevents sludge from leaking during the dewatering process.

[0038] In summary, this invention achieves highly efficient sludge dewatering. It not only improves sludge dewatering efficiency and reduces moisture content, but also ensures stable filter cloth operation and uniform sludge distribution. Attached Figure Description

[0039] Figure 1 This is a three-dimensional structural diagram of the sludge dewatering device of this utility model. Figure 1 ;

[0040] Figure 2 This is a three-dimensional structural diagram of the sludge dewatering device of this utility model. Figure 2 ;

[0041] Figure 3 This is a three-dimensional structural diagram of the sludge dewatering device of this utility model. Figure 3 ;

[0042] Figure 4 This is a three-dimensional structural diagram of the water collection plate of the sludge dewatering device of this utility model;

[0043] Figure 5 for Figure 3 A magnified view of part A in the middle;

[0044] Figure 6 for Figure 3 A magnified view of part B in the middle section. Detailed Implementation

[0045] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0046] like Figure 1-6 As shown, a sludge dewatering device includes:

[0047] The base 1 has a water collection trough with a central inward recess on its upper surface, and a drainage channel connected to the water collection trough on its side.

[0048] Sludge conditioning tank 2 is installed on base 1. The top of sludge conditioning tank 2 is provided with material inlet 21 and the side wall is provided with discharge outlet 22.

[0049] The main frame 3 is mounted on the base 1. One side of the main frame 3 is connected to the discharge port 22 of the sludge conditioning tank 2 through a pipe. The bottom side of the main frame 3 is provided with a drainage hole 32.

[0050] Multiple guide rollers 4 are rotatably mounted inside the main frame 3;

[0051] The drive roller is rotatably mounted inside the main frame 3.

[0052] The transmission roller drive mechanism 7 is mounted on the main frame 3 and is connected to the transmission roller drive mechanism 7 in a transmission connection.

[0053] Filter cloth 5 is mounted around multiple guide rollers 4 and drive rollers to form a separation conveyor belt;

[0054] Diverting baffle assembly 6 is mounted on the main frame 3. The diverting baffle assembly 6 includes a support rod 61 spanning the left and right sides of the filter cloth 5, and multiple wedge-shaped baffles 62 installed at equal intervals along the length of the support rod 61. The multiple wedge-shaped baffles 62 are symmetrically arranged along the central axis of the support rod 61, and the wedge-shaped baffles 62 on opposite sides have a V-shaped structure.

[0055] In this embodiment, as Figure 1-3 As shown, sludge enters the main frame 3 through the sludge conditioning tank 2. Driven by the transmission rollers, the filter cloth 5 circulates along the guide rollers 4, gradually dewatering the sludge on the filter cloth 5. The wedge-shaped baffles 62 in the diversion baffle assembly 6 evenly distribute the sludge during transport, preventing localized accumulation and improving dewatering efficiency. Wastewater is collected through the drain holes 32 on the bottom side of the main frame 3 and the water collection tank on the base 1, and discharged through the drainage channel, thus separating sludge and water and improving sludge dewatering efficiency.

[0056] The sludge dewatering device also includes a water collection plate 14, which is installed on the main frame 3 and located inside the filter cloth 5. When the sludge moves on the filter cloth 5, the water in the sludge permeates downward through the pores of the filter cloth 5. The water collection plate 14 is located on the inner side of the filter cloth 5, so that the permeated water flows along the surface of the water collection plate 14 to the drain hole 32. The water collection plate 14 has two inclined surfaces, with the lowest point in the middle.

[0057] Specifically, such as Figure 1-2 As shown, the sludge dewatering device also includes a stirring mechanism 8, which is installed on the sludge conditioning tank 2. The stirring mechanism 8 includes:

[0058] A stirring motor 81 is installed on the sludge conditioning tank 2, and the stirring motor 81 is equipped with an output shaft;

[0059] A stirring shaft, one end of which is connected to the output shaft of the stirring motor 81;

[0060] The stirring blades are mounted on the stirring shaft.

[0061] Specifically, such as Figure 1 and Figure 5 As shown, the sludge dewatering device also includes a scraper 9, which is mounted on the main frame 3 and located at the outlet of the separation conveyor belt formed by the filter cloth 5.

[0062] In this embodiment, as Figure 1-2and Figure 5 As shown, the stirring mechanism 8 is used to mix and stir the sludge in the sludge conditioning tank 2. This process allows for the addition of flocculants or other conditioning agents to the sludge, ensuring thorough mixing and forming a suitable sludge slurry for dewatering.

[0063] The scraper 9 is located at the outlet of the separation conveyor belt formed by the filter cloth 5, and is used to remove the dewatered sludge adhering to the filter cloth 5.

[0064] During the operation of the sludge dewatering device, the sludge is stirred in the conditioning tank 2 and then discharged from the outlet 22, entering the filter cloth 5 inside the main frame 3. The filter cloth 5 runs under the drive of the transmission roller, carrying the sludge and moving upward at an incline. During the movement, the water in the sludge seeps through the pores of the filter cloth 5 under the action of gravity and is discharged through the drain hole 32, while the solid sludge is carried by the filter cloth 5 to the outlet, where it is scraped off and collected by the scraper 9.

[0065] Specifically, such as Figure 1 and Figure 6 As shown, the sludge dewatering device also includes a first tension adjustment mechanism, which includes:

[0066] A pair of sliding guide frames 111 are installed on both sides of the main frame 3, and the sliding guide frames 111 are provided with roller guide grooves.

[0067] Adjusting roller, the adjusting roller is set inside the separating conveyor belt of filter cloth 5;

[0068] A pair of rollers 113 are rotatably mounted on both ends of the adjusting roller, and the rollers 113 are adapted to slide in the roller guide groove;

[0069] Two telescopic rods 114, one end of which is hinged to the outside of the roller 113, and the other end is hinged to the main frame 3.

[0070] Specifically, such as Figure 1 and Figure 6 As shown, the sludge dewatering device also includes a second tension adjustment mechanism, which includes:

[0071] A pair of sliding supports 121 are installed on the two side walls of the main frame 3, and guide rails 122 are provided on the sliding supports 121;

[0072] The tension roller is set inside the separating conveyor belt of filter cloth 5;

[0073] A pair of sliding connecting blocks 123 are installed at both ends of the corresponding tensioning rollers, and the sliding connecting blocks 123 are slidably engaged with the guide rail 122.

[0074] Two telescopic drive assemblies 124, one end of which is hinged to the main frame 3, and the other end is hinged to the corresponding sliding connecting block 123.

[0075] In this embodiment, as Figure 1 and Figure 6 As shown, the first and second tension adjustment mechanisms are used to adjust the tension of the filter cloth 5 during use. By adjusting the length of the telescopic rod 114, the roller 113 slides within the roller guide groove, thereby changing the position of the adjusting roller and thus adjusting the tension of the filter cloth 5. When the sludge dewatering device is running, the filter cloth 5 may become loose due to prolonged use. At this time, the first tension adjustment mechanism can be used to tension the filter cloth 5 to ensure its normal operation. Simultaneously, the second tension adjustment mechanism, through the extension and retraction of the telescopic drive assembly 124, drives the sliding connecting block 123 to slide on the guide rail 122, thereby changing the position of the tensioning roller and further adjusting the tension of the filter cloth 5. The telescopic rod 114 can be a cylinder, and the telescopic drive assembly 124 can be a linear motor.

[0076] Specifically, such as Figure 1 and Figure 5 As shown, the transmission roller drive mechanism 7 includes:

[0077] A drive source 71 is mounted on the main frame 3 and has an output end.

[0078] The gearbox 72 has an input end and an output end. The input end of the gearbox 72 is connected to the output end of the drive source 71, and the output end of the gearbox 72 is connected to the drive roller.

[0079] In this embodiment, as Figure 1 and Figure 5 As shown, the drive source 71, which can be a motor, is mounted on the main frame 3 as a power source. When the drive source 71 is started, its output end generates rotational power, which is transmitted to the input end of the reduction gearbox 72. The reduction gearbox 72 reduces the high speed to a speed suitable for sludge dewatering operations, while increasing the output torque, enabling the drive roller to carry and convey the filter cloth 5 containing sludge.

[0080] Specifically, such as Figure 1 As shown, the filter cloth 5 is inclined upward along the material conveying direction.

[0081] Specifically, such as Figure 1-2 As shown, the sludge dewatering device also includes at least one side baffle 11, which is installed on the main frame 3 and located on both sides of the filter cloth 5.

[0082] Specifically, such as Figure 1 As shown, the sludge dewatering device also includes a ladder 12, which is installed on the outside of the main frame 3.

[0083] In this embodiment, as Figure 1-2 As shown, the filter cloth 5 is inclined upwards along the material conveying direction, so that the sludge is subjected to gravity during the conveying process, and the water in the sludge can more easily seep downwards through the filter cloth 5. When the sludge is discharged from the discharge port 22 of the sludge conditioning tank 2 into the main frame 3, it falls onto the filter cloth 5. Two side baffles 11 are installed on the main frame 3, located on both sides of the filter cloth 5. Their main function is to prevent the sludge from overflowing from both sides of the filter cloth 5 during the conveying process. When the sludge is conveyed onto the filter cloth 5, due to the movement of the filter cloth 5 and the fluidity of the sludge itself, the sludge may spread to both sides. The side baffles 11 form a physical barrier, restricting the sludge within the width of the filter cloth 5, ensuring that the sludge is evenly distributed on the filter cloth 5 and receives sufficient dewatering treatment.

[0084] The ladder 12 is placed outside the main frame 3. The upper end of the ladder 12 is equipped with a hook that can hook onto the side wall of the main frame 3. The ladder 12 is used by operators for daily inspection, maintenance and operation of the equipment.

[0085] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sludge dewatering device, characterized in that, include: The base (1) has a water collection trough with a central inward recess on its upper surface and a drainage channel connected to the water collection trough on its side. Sludge conditioning tank (2), the sludge conditioning tank (2) is installed on the base (1), the sludge conditioning tank (2) is provided with a material inlet (21) at the top and a discharge outlet (22) on the side wall; The main frame (3) is mounted on the base (1). One side of the main frame (3) is connected to the discharge port (22) of the sludge conditioning tank (2) through a pipe. The bottom side of the main frame (3) is provided with a drainage hole (32). Multiple guide rollers (4) are rotatably mounted within the main frame (3); At least one drive roller is rotatably mounted within the main frame (3); A transmission roller drive mechanism (7) is mounted on the main frame (3) and is connected to the transmission roller in a transmission connection. Filter cloth (5) is mounted around the plurality of guide rollers (4) and the drive roller to form a separation conveyor belt; The diversion baffle assembly (6) is mounted on the main frame (3). The diversion baffle assembly (6) includes a support rod (61) spanning the left and right sides of the filter cloth (5) and a plurality of wedge-shaped baffles (62) installed at equal intervals along the length of the support rod (61). The plurality of wedge-shaped baffles (62) are symmetrically arranged along the central axis of the support rod (61), wherein the wedge-shaped baffles (62) on opposite sides have a V-shaped structure.

2. The sludge dewatering device according to claim 1, characterized in that, The filter cloth (5) is inclined upward along the material conveying direction.

3. The sludge dewatering device according to claim 1, characterized in that, It also includes a stirring mechanism (8), which is installed on the sludge conditioning tank (2), and the stirring mechanism (8) includes: A stirring motor (81) is installed on the sludge conditioning tank (2), and the stirring motor (81) is provided with an output shaft; A stirring shaft, one end of which is connected to the output shaft of the stirring motor (81); A stirring blade is mounted on the stirring shaft.

4. The sludge dewatering device according to claim 1, characterized in that, It also includes a scraper (9) mounted on the main frame (3) at the outlet of the separation conveyor belt formed by the filter cloth (5).

5. The sludge dewatering device according to claim 1, characterized in that, It also includes a first tension adjustment mechanism, which comprises: A pair of sliding guide frames (111) are installed on the two side walls of the main frame (3), and the sliding guide frames (111) are provided with roller guide grooves; Adjusting roller, the adjusting roller is disposed inside the separating conveyor belt of the filter cloth (5); A pair of rollers (113) are rotatably mounted on both ends of the adjusting roller, and the rollers (113) are adapted to slide within the roller guide groove; At least one telescopic rod (114), one end of which is hinged to the outside of the roller (113) and the other end is hinged to the main frame (3).

6. The sludge dewatering device according to claim 1, characterized in that, It also includes a second tension adjustment mechanism, which comprises: A pair of sliding supports (121) are installed on the two side walls of the main frame (3), and guide rails (122) are provided on the sliding supports (121); Tensioning roller, which is disposed inside the separating conveyor belt of the filter cloth (5); A pair of sliding connecting blocks (123) are installed at the corresponding ends of the tensioning rollers, and the sliding connecting blocks (123) are slidably engaged with the guide rail (122); At least one telescopic drive assembly (124), one end of which is hinged to the main frame (3) and the other end of which is hinged to the corresponding sliding connecting block (123).

7. The sludge dewatering device according to claim 1, characterized in that, The transmission roller drive mechanism (7) includes: A drive source (71) is mounted on the main frame (3) and has an output terminal. The gearbox (72) has an input end and an output end. The input end of the gearbox (72) is connected to the output end of the drive source (71), and the output end of the gearbox (72) is connected to the transmission roller.

8. The sludge dewatering device according to claim 1, characterized in that, It also includes at least one side baffle (11), which is mounted on the main frame (3) and located on both sides of the filter cloth (5).

9. The sludge dewatering device according to claim 1, characterized in that, It also includes a ladder (12) which is mounted on the outside of the main frame (3).

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