A sludge dewatering device

Abstract

This invention discloses a sludge dewatering device, comprising a housing with a movably mounted filter box inside. The housing is connected to a motor, which enables the filter box to reciprocate horizontally. It also includes a sliding rheostat connected to the motor; the weight of the filter box affects the resistance of the rheostat, thereby influencing the frequency of the filter box's horizontal reciprocating motion. This device is easy to operate and allows for selection of a suitable dewatering frequency based on the sludge's moisture content, ensuring both good dewatering efficiency and high dewatering quality.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, specifically to a sludge dewatering device. Background Technology

[0002] With the acceleration of urbanization, the number of sewage treatment plants is constantly increasing, resulting in a growing amount of sludge. Increasingly stringent environmental regulations are placing higher demands on sludge treatment and disposal. Furthermore, the intensified environmental restoration and management of rivers, lakes, and reservoirs has generated large quantities of dredged sludge with high water content, high porosity, low permeability, and high compressibility during construction. Sludge dewatering can significantly reduce its volume, making it easier to handle, transport, and dispose of. The greatly reduced volume of dewatered sludge lowers storage and treatment costs.

[0003] Patent CN 208340964 U discloses a sludge dewatering device and a sludge dredging boat with a sludge dewatering device, including a centrifugal screen, a centrifugal screen rotating shaft, a filter screen, a spiral pusher plate, and a dewatering motor. The sludge dewatering device is provided with an inlet and an outlet. The centrifugal screen and the centrifugal screen rotating shaft are connected. The filter screen is cylindrical and is fixedly connected to the centrifugal screen and nested in fit. The spiral pusher plate is set in the filter screen and extends along the axial direction of the filter screen, and is located between the inlet and the outlet. The dewatering motor is connected to the centrifugal screen rotating shaft and drives the centrifugal screen rotating shaft to rotate. The centrifugal screen and the filter screen rotate relative to the spiral pusher plate.

[0004] However, the device also has the following problems: it uses centrifugal force to throw water out of the sludge from the centrifugal screen. In the initial state of the sludge, the water content is high. With a fixed centrifugal screen speed, on the one hand, the motor load is large due to the high weight of the sludge in the initial state, which can easily lead to machine burnout. On the other hand, maintaining the same speed cannot be well adapted to changes in the water content of the sludge, which is not conducive to the filtration of water in the sludge and results in low dewatering efficiency. Utility Model Content

[0005] To address the problems existing in the prior art, a sludge dewatering device is provided. This device is easy to operate and can select an appropriate dewatering frequency based on the water content of the sludge, thereby ensuring good overall dewatering efficiency and high dewatering quality.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] This utility model proposes a sludge dewatering device, including a box body, in which a filter box is movably disposed, and a motor connected to the box body, the motor being able to realize the horizontal reciprocating motion of the filter box; it also includes a sliding rheostat connected to the motor, the weight of the filter box being able to affect the resistance value of the sliding rheostat, thereby affecting the frequency of the horizontal reciprocating motion of the filter box.

[0008] Preferably, a water filter plate for water filtration is fixedly connected inside the box, and a compression spring is provided between the water filter plate and the filter box.

[0009] Preferably, a vertically movable slider is slidably connected inside the housing, the slider and the filter housing are slidably connected, the upper end of the compression spring is connected to the slider, and the lower end is connected to the filter plate.

[0010] Preferably, the side wall of the housing is provided with a T-shaped groove, and a T-shaped block is slidably connected in the T-shaped groove. The T-shaped block is connected to the filter box through a spring rod.

[0011] Preferably, the spring rod includes a sliding sleeve and a sliding rod, the sliding rod is slidably disposed in the sliding sleeve, the sliding rod is connected to the sliding sleeve by a spring, the sliding sleeve is fixedly connected to the T-block, and the sliding rod is fixedly connected to the filter box.

[0012] Preferably, the housing is rotatably connected to a vertically arranged rotating shaft, and the rotating shaft is fixedly fitted with a plurality of cams, the cams being located on one side of the filter housing.

[0013] Preferably, the motor is fixedly connected to the outer wall of the housing, the motor is connected to an output shaft, the output shaft passes through the housing and is rotatably connected to the housing, the output shaft is fixedly fitted with a first bevel gear, the rotating shaft is fixedly fitted with a second bevel gear, and the first bevel gear and the second bevel gear mesh with each other.

[0014] Preferably, the sliding rheostat is fixedly connected to the outer wall of the housing, and the sliding rheostat is connected to the motor circuit. The sliding rheostat includes a sliding plate. The filter box is connected to a telescopic rod, and the other end of the telescopic rod is slidably connected to the filter box. When the telescopic rod moves, it can drive the sliding plate to move synchronously.

[0015] Preferably, the filter box is connected to a vibrator, the box body is fixedly connected to a guide plate, the filter box is located below the guide plate, and the filter box has a through hole for water supply.

[0016] Preferably, the bottom surface of the filter box is wavy, and the bottom surface of the filter box is a water-permeable non-woven fabric with a wire mesh on the surface of the non-woven fabric.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model is equipped with a sliding rheostat. The weight of the sludge in the filter box varies, resulting in different descent distances for the filter box. This allows the sliding rheostat to have different resistance values, enabling adjustment of the motor current. In the initial stage of dewatering, the sludge has a high water content and good fluidity, and a higher rotation speed can effectively remove water. As the dewatering process progresses, the viscosity of the sludge increases, and its fluidity decreases. A high rotation speed may lead to increased friction between sludge particles. At this point, the rotation speed is reduced to avoid excessive friction between particles and reduce energy consumption. The appropriate dewatering frequency can be selected according to the water content of the sludge, thereby ensuring good overall dewatering efficiency and high dewatering quality.

[0019] 2. This utility model also includes a cam, and the rotating shaft can drive several cams to rotate simultaneously, realizing the horizontal reciprocating motion of the filter box. In conjunction with the vibrator, it can achieve the dewatering of sludge. The bottom of the filter box is made of non-woven fabric with a wavy pattern, which can filter water while bearing a large amount of sludge. The vibration of the vibrator and the reciprocating shaking of the filter box driven by the cam generate centrifugal force and extrusion force, thereby better facilitating the dewatering of sludge. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a three-dimensional view of the entire utility model;

[0022] Figure 2 yes Figure 1 Main view of the middle box section structure;

[0023] Figure 3 yes Figure 2 Schematic diagram of the middle filter box.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Box body; 2. Sludge box; 3. Screw conveyor; 4. Feed inlet; 5. Filter box; 6. Guide plate; 7. Spring rod; 8. T-slot; 9. Slider; 10. Compression spring; 11. Switch; 12. Filter plate; 13. Float; 14. Vibrator; 15. Rotary shaft; 16. Cam; 17. Sliding rheostat; 18. Sliding plate; 19. Telescopic rod; 20. Non-woven fabric; 21. Motor; 22. Water outlet pipe; 23. T-block. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] like Figures 1-3 As shown in the figure, this embodiment proposes a sludge dewatering device, including a box body 1, a sludge box 2 is provided on one side of the box body 1, a screw conveyor 3 is rotatably connected inside the sludge box 2, the sludge box 2 is also connected to a discharge port, the screw conveyor 3 is connected to the discharge port, and a feed port 4 is provided on the top of the box body 1. The screw conveyor 3 is used for precise sludge conveying, so that the sludge can be quantitatively conveyed into the box body 1 each time, thereby facilitating the sludge dewatering process.

[0028] The screw conveyor 3 serves two purposes: firstly, it provides precise conveying; secondly, during the conveying process, it allows some of the water in the sludge to be squeezed out beforehand. The sludge tank 2 is equipped with a water outlet, which facilitates water discharge and thus facilitates the conveying of sludge. The sludge tank 2 and the matching screw conveyor 3 are optional structures, and the sludge can also be directly conveyed into the tank 1 without the need for the sludge tank 2 and the screw conveyor 3.

[0029] A filter box 5 is movably installed inside the housing 1. The housing 1 is connected to a motor 21, which enables the filter box 5 to reciprocate horizontally. The housing 1 also includes a sliding rheostat 17 connected to the motor 21. The weight of the filter box 5 can affect the resistance value of the sliding rheostat, thereby affecting the frequency of the horizontal reciprocating motion of the filter box 5.

[0030] A water filter plate 12 for water filtration is fixedly connected inside the housing 1. A compression spring 10 is provided between the water filter plate 12 and the filter box 5. The water filter plate 12 has a mesh structure design, which can filter water through the mesh. The filtered water flows into the space below the housing 1. The space below specifically refers to the space formed by the housing 1 and the water filter plate 12.

[0031] A vertically moving slider 9 is slidably connected inside the housing 1. The slider 9 and the filter box 5 are slidably connected. The upper end of the compression spring 10 is connected to the slider 9, and the lower end is connected to the filter plate 12. The compression spring 10 is used to support the filter box 5. The slider 9 can only slide vertically, while the housing 1 can move horizontally relative to the slider 9. The slider 9 is designed to better support the housing 1.

[0032] The side wall of the housing 1 is provided with a T-shaped groove 8, which is opened vertically. A T-shaped block 23 is slidably connected in the T-shaped groove 8. The T-shaped block 23 is connected to the filter box 5 through a spring rod 7. The T-shaped groove 8 and the T-shaped block 23 cooperate to better support and limit the position of the filter box 5.

[0033] The spring rod 7 includes a sliding sleeve and a sliding rod. The sliding rod is slidably disposed inside the sliding sleeve and is connected to the sliding sleeve by a spring. The sliding sleeve is fixedly connected to the T-block 23 and the sliding rod is fixedly connected to the filter box 5. The spring is located between the sliding rod and the sliding sleeve. The left end of the spring is connected to the sliding sleeve and the right end of the spring is connected to the sliding rod. When the filter box 5 moves horizontally, the spring is used for the reset of the filter box 5.

[0034] The housing 1 is rotatably connected to a vertically arranged rotating shaft 15. Several cams 16 are fixedly sleeved on the rotating shaft 15. The cams 16 are located on one side of the filter box 5. The several cams 16 are in contact with the surface of the filter box 5. When the rotating shaft 15 rotates, it can drive the cams 16 to rotate. The cams 16 can drive the filter box 5 to move horizontally to the left, so that the spring is compressed. Afterwards, when the cams 16 no longer compress the filter box 5, the spring realizes the reset of the filter box 5.

[0035] The motor 21 is fixedly connected to the outer wall of the housing 1. The motor 21 is connected to an output shaft, which passes through the housing 1 and is rotatably connected to the housing 1. A first bevel gear is fixedly sleeved on the part of the output shaft that passes through the housing 1, and a second bevel gear is fixedly sleeved on the rotating shaft 15. The first bevel gear and the second bevel gear mesh with each other. The motor 21 is located on the outside of the housing 1, thereby preventing sludge and sewage from affecting the motor 21, and also facilitating the maintenance and repair of the motor 21.

[0036] The sliding rheostat 17 is fixedly connected to the outer wall of the housing 1. The sliding rheostat 17 is connected to the circuit of the motor 21. The sliding rheostat 17 includes a slider 18. The filter box 5 is connected to a telescopic rod 19. The other end of the telescopic rod 19 is slidably connected to the filter box 5. When the telescopic rod 19 moves, it can drive the slider 18 to move synchronously. The movement of the slider 18 can change the resistance value of the sliding rheostat 17, thereby realizing the current adjustment of the motor 21.

[0037] The sliding rheostat 17 is connected to the motor 21 through wires at both ends. The sliding rheostat 17 is mainly composed of five parts: terminals, slider, resistance wire, metal rod and ceramic cylinder. The resistance is adjusted by moving the slider 18 to change the length of the resistance wire connected to the circuit. At the same time, the movement of the telescopic rod 19 can drive the movement of the slider, thereby adjusting the resistance value of the circuit corresponding to the motor 21. The speed of the horizontal movement of the filter box 5 is different depending on the current of the motor 21.

[0038] The telescopic rod 19 has two connection methods. In the first method, the telescopic rod 19 is directly fixedly connected to the sliding plate 18. The telescopic rod 19 includes an outer rod and an inner rod that is slidably connected inside the outer rod. In this case, the inner rod of the telescopic rod 19 is fixedly connected to the sliding plate 18, and the outer rod of the telescopic rod 19 is fixedly connected to the filter box 5. When the telescopic rod 19 moves vertically, it directly drives the sliding plate 18 to move.

[0039] The second connection method is as follows: the telescopic rod 19 includes an outer rod, and an inner rod is slidably connected inside the outer rod. The outer rod of the telescopic rod 19 is fixedly connected to the filter box 5. A magnet is fixedly connected to the inner rod of the telescopic rod 19. An iron block is fixedly connected to the left end of the sliding plate 18. The magnet has an attraction effect on the iron block. When the telescopic rod 19 moves vertically, the magnet drives the sliding plate 18 to move. This method can be used to deal with the vibration of the filter box 5 and prevent the magnet from directly affecting the sliding plate 18.

[0040] Maintaining a constant rotation speed is generally not conducive to sludge dewatering, mainly because the physical properties of the sludge change during the dewatering process, and a single rotation speed cannot accommodate these changes. These changes include the gradual decrease in the sludge's moisture content during dewatering, which in turn alters its physical properties.

[0041] Increased viscosity: As the water content decreases, the viscosity of the silt increases significantly, becoming more viscous.

[0042] Reduced fluidity: After the water content decreases, the fluidity of the sludge deteriorates, making it more difficult to dehydrate by mechanical stirring or centrifugal force.

[0043] Increased interparticle friction: As moisture decreases, the friction between silt particles increases, further hindering water separation.

[0044] In the process of sludge dewatering, the initial dewatering efficiency is high: in the initial stage of dewatering, the sludge has a high water content and good fluidity. At this time, the high rotation speed can effectively use centrifugal force to throw out the water, resulting in high dewatering efficiency.

[0045] Low dehydration efficiency in the later stages: As the dehydration process proceeds, the viscosity of the sludge increases and its fluidity decreases. High rotation speed may lead to increased friction between sludge particles, which is not conducive to further separation of water. At this time, if the rotation speed is too high, the sludge particles may be remixed, resulting in increased wear on the equipment. Maintaining a high rotation speed requires more energy, while the dehydration efficiency does not increase accordingly, leading to increased energy consumption.

[0046] Therefore, in order to achieve efficient dewatering, the rotation speed needs to be dynamically adjusted according to the moisture content and physical properties of the sludge:

[0047] High rotation speed in the early stage: In the early stage of dehydration, the sludge has a high water content and good fluidity, so a higher rotation speed can be used to quickly separate a large amount of water.

[0048] Medium speed during the middle stage: As the dewatering process proceeds, the viscosity of the sludge increases and its fluidity decreases. At this time, the speed should be appropriately reduced to adapt to the changes in the physical properties of the sludge.

[0049] Low rotation speed in the later stage: In the later stage of dewatering, the moisture content of the sludge is already very low. At this time, the rotation speed should be further reduced to avoid excessive friction between particles and reduce energy consumption.

[0050] Specifically, in this application, the filter box 5 is initially heavy, causing the sliding plate 18 to descend, which reduces the resistance of the sliding rheostat 17 and increases the speed of the motor 21. As the dewatering process continues, the compression spring 10 drives the filter box 5 to rise, and the filter box 5 drives the sliding plate 18 to rise via the telescopic rod 19, which increases the resistance of the sliding rheostat 17 and slows down the speed of the motor 21. This allows for dynamic adjustment of the speed according to the moisture content and physical properties of the sludge, achieving the best dewatering effect and ensuring the efficiency and economy of the dewatering process.

[0051] The filter box 5 is connected to a vibrator 14, and the box body 1 is fixedly connected to a guide plate 6. The filter box 5 is located below the guide plate 6, and the guide plate 6 is located above the rotating shaft 15. The sludge enters the filter box 5 through the guide plate 6 to prevent the sludge from falling above the rotating shaft 15. The filter box 5 is provided with a through hole for water supply.

[0052] The working part of vibrator 14 is a hollow rod-shaped cylinder containing an eccentric oscillator. Driven by a motor, it rotates at high speed, generating high-frequency, low-amplitude vibrations. Vibrator 14 can also be replaced with an electromagnetic vibrator, which contains an electromagnetic coil. The current flowing through the electromagnetic coil is a pulsed current rectified by a half-wave rectifier. During the positive half-wave, current flows, and the electromagnet has an attractive force, drawing the vibrating plate closer. During the negative half-wave, no current flows, the electromagnet's attractive force disappears, and due to the spring's action, the vibrating plate returns to its original position. Since the filter box 5 is connected to the vibrating plate, the filter box 5 continuously vibrates under the action of the electromagnetic vibrator.

[0053] A switch 11 is connected to the lower end of the filter plate 12. A float 13 is slidably connected inside the housing 1. The float 13 is located below the filter plate 12. At the same time, the housing 1 is connected to a water outlet pipe 22. A solenoid valve is installed at the connection between the water outlet pipe 22 and the housing 1. The switch 11 can control the opening of the solenoid valve.

[0054] The switch 11 can be a proximity switch. The switch 11 and the solenoid valve are connected to a controller. The upper surface of the float 13 is connected to a sensing metal piece that cooperates with the switch 11. The proximity switch is a position switch that can be operated without direct mechanical contact with the moving parts. When the float 13 moves the sensing metal piece close to the sensing surface of the proximity switch to the operating distance, the switch can be activated without mechanical contact or the application of any pressure, thereby providing a control command to the controller to open the solenoid valve and realize the water outlet pipe 22.

[0055] The bottom of the filter box 5 is wavy and made of water-permeable non-woven fabric. The surface of the non-woven fabric is covered with wire mesh, which is placed on the inner surface of the non-woven fabric as a lining to support the silt.

[0056] Non-woven fabric is a material composed of oriented or randomly arranged fibers, possessing excellent air and water permeability. Its filtration principle utilizes physical or mechanical principles to create a pressure difference in the filtrate, allowing the filtrate to penetrate the non-woven fabric from the inside out. Impurities larger than the pore diameter of the non-woven fabric are trapped within it, thus achieving water filtration while also being able to handle a significant amount of silt.

[0057] The vibrator 14 can vibrate the filter box 5 vertically, and the cam 16 can drive the filter box 5 to sway horizontally. The horizontal swaying and vertical vibration generate a force with a resultant direction of 45°, which causes the non-woven fabric at the bottom of the filter box 5 to generate centrifugal force and extrusion force, thus better facilitating the dewatering of sludge.

[0058] Specifically, when filter box 5 is shaken horizontally, the sludge inside it experiences inertial force due to the movement of filter box 5. Since the trajectory of filter box 5 is periodic, the sludge continuously changes its direction of motion inside the filter box 5. According to Newton's First Law, an object experiences inertial force when it changes its state of motion. In this situation, the sludge experiences an outward force, namely centrifugal force. The magnitude of the centrifugal force is related to the mass of the sludge, its speed, and its radius of motion; its direction always points tangentially to the trajectory. The centrifugal force causes water in the sludge to be thrown outwards, thus accelerating the separation of water from the sludge.

[0059] The vibrator 14 applies vertical vibration to the filter box 5. This vibration causes the sludge inside the filter box 5 to move up and down vertically. When the sludge is subjected to downward pressure on the non-woven fabric surface, water is squeezed out. This squeezing force is similar to manually squeezing a sponge, using external force to force water out of the sludge.

[0060] When horizontal swaying and vertical vibration act simultaneously on filter box 5, these two forces combine into a resultant force. According to the principle of vector composition, the direction of the resultant force of the horizontal swaying force and the vertical vibration force is approximately 45°. This 45° resultant force direction means that the sludge is subjected not only to the centrifugal force in the horizontal direction but also to the squeezing force in the vertical direction during its movement. The centrifugal force causes water to be thrown out in the horizontal direction, while the squeezing force squeezes out water in the vertical direction. The synergistic effect of these two forces, combined with the filtration function of the non-woven fabric, enables more efficient dewatering of the sludge. Compared to single vibration or swaying, this 45° resultant force action can more comprehensively promote water separation and improve dewatering efficiency.

[0061] Using non-woven fabric, impurities in the silt can be effectively trapped, allowing water to flow through. At the same time, non-woven fabric is relatively inexpensive, recyclable, easy to install, and can be connected by sewing or other methods, making it highly adaptable.

[0062] The specific working process is as follows: After the sludge is transported into the box 1 by the screw conveyor 3, it flows into the filter box 5 under the action of the guide plate 6. The screw conveyor 3 is set to achieve quantitative delivery each time, keeping the amount of sludge entering the box 1 approximately the same each time, which is conducive to the descent of the filter box 5. The sludge containing water drives the filter box 5 to descend, causing the compression spring 10 to be compressed. The filter box 5 moves through the telescopic rod 19 and the sliding plate 18, thereby realizing the adjustment of the resistance value of the sliding rheostat 17.

[0063] Then the motor 21 starts, driving the rotating shaft 15 to rotate. The rotating shaft 15 drives several cams 16 to rotate simultaneously. The cams 16 drive the filter box 5 to move horizontally to the left. Under the action of the spring rod 7, when the cams 16 no longer squeeze the filter box 5, the spring rod 7 resets the filter box 5, thereby realizing the horizontal reciprocating motion of the filter box 5. At the same time, the vibrator 14 vibrates the filter box 5, which is more conducive to the dewatering of sludge.

[0064] In its initial state, the filter box 5 is relatively heavy, causing the sliding plate 18 to descend, which reduces the resistance of the sliding rheostat 17 and increases the speed of the motor 21. As the dewatering process continues, the compression spring 10 drives the filter box 5 to rise. The filter box 5 then drives the sliding plate 18 to rise via the telescopic rod 19, which increases the resistance of the sliding rheostat 17 and slows down the speed of the motor 21. This allows for dynamic adjustment of the speed based on the moisture content and physical properties of the sludge, achieving the best dewatering effect and ensuring the efficiency and economy of the dewatering process.

[0065] High rotation speed in the early stage: In the early stage of dehydration, the sludge has a high water content and good fluidity, so a higher rotation speed can be used to quickly separate a large amount of water.

[0066] Medium speed during the middle stage: As the dewatering process proceeds, the viscosity of the sludge increases and its fluidity decreases. At this time, the speed should be appropriately reduced to adapt to the changes in the physical properties of the sludge.

[0067] Low rotation speed in the later stage: In the later stage of dewatering, the moisture content of the sludge is already very low. At this time, the rotation speed should be further reduced to avoid excessive friction between particles and reduce energy consumption.

[0068] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A sludge dewatering device comprising a tank (1), characterized in that, The housing (1) contains a filter box (5), and the housing (1) is connected to a motor (21). The motor (21) can realize the horizontal reciprocating motion of the filter box (5). It also includes a sliding rheostat (17) connected to the motor (21). The weight of the filter box (5) can affect the resistance value of the sliding rheostat, thereby affecting the frequency of the horizontal reciprocating motion of the filter box (5).

2. A sludge dewatering device according to claim 1, characterised in that A filter plate (12) for water filtration is fixedly connected inside the housing (1), and a compression spring (10) is provided between the filter plate (12) and the filter box (5).

3. A sludge dewatering apparatus according to claim 2, wherein The box (1) is slidably connected to a vertically moving slider (9). The slider (9) and the filter box (5) are slidably connected. The upper end of the compression spring (10) is connected to the slider (9), and the lower end is connected to the filter plate (12).

4. The sludge dewatering apparatus of claim 1, wherein The side wall of the box (1) is provided with a T-shaped groove (8), and a T-shaped block (23) is slidably connected in the T-shaped groove (8). The T-shaped block (23) is connected to the filter box (5) through a spring rod (7).

5. A sludge dewatering apparatus according to claim 4, wherein The spring rod (7) includes a sliding sleeve and a sliding rod. The sliding rod is slidably disposed in the sliding sleeve. The sliding rod is connected to the sliding sleeve by a spring. The sliding sleeve is fixedly connected to the T-block (23). The sliding rod is fixedly connected to the filter box (5).

6. A sludge dewatering device according to claim 1, wherein The housing (1) is rotatably connected to a vertically arranged rotating shaft (15), and the rotating shaft (15) is fixedly fitted with several cams (16), which are located on one side of the filter box (5).

7. A sludge dewatering apparatus according to claim 6, wherein The motor (21) is fixedly connected to the outer wall of the housing (1). The motor (21) is connected to an output shaft. The output shaft passes through the housing (1) and is rotatably connected to the housing (1). The output shaft is fixedly fitted with a first bevel gear. The rotating shaft (15) is fixedly fitted with a second bevel gear. The first bevel gear and the second bevel gear mesh with each other.

8. The sludge dewatering device according to claim 1, characterized in that, The sliding rheostat (17) is fixedly connected to the outer wall of the housing (1). The sliding rheostat (17) is connected to the circuit of the motor (21). The sliding rheostat (17) includes a sliding plate (18). The filter box (5) is connected to a telescopic rod (19). The other end of the telescopic rod (19) is slidably connected to the filter box (5). When the telescopic rod (19) moves, it can drive the sliding plate (18) to move synchronously.

9. A sludge dewatering device according to claim 1, characterized in that, The filter box (5) is connected to a vibrator (14), the box body (1) is fixedly connected to a guide plate (6), the filter box (5) is located below the guide plate (6), and the filter box (5) has a through hole for water supply.

10. A sludge dewatering device according to claim 1, characterized in that, The bottom surface of the filter box (5) is wavy, and the bottom surface of the filter box is a water-permeable non-woven fabric with a wire mesh on the surface of the non-woven fabric.

Images