A hazardous waste sludge treatment device

Abstract

The application discloses a kind of hazardous waste sludge treatment devices, it is related to sludge treatment technical field, the hazardous waste sludge treatment device includes base, the top of the base is fixedly installed with processing jar, the top of the processing jar is fixedly installed with motor one, the top of the base is fixedly installed with separator, the surface of the separator is fixedly installed with motor two, the sludge after preliminary dewatering is pumped to the inside of processing jar by sludge pipe, water is overflowed by water outlet, then separated water flows out by drain pipe, realize the preliminary solid-liquid separation of sludge, not only can reduce the moisture content of sludge in subsequent processing link, reduce processing difficulty and cost, but also can improve the processing efficiency of entire sludge processing system, so that further processing of sludge is more efficient, stable.

Description

Technical Field

[0001] This invention relates to the field of sludge treatment technology, specifically to a hazardous waste sludge treatment device. Background Technology

[0002] Hazardous waste sludge disposal equipment is used to treat hazardous waste sludge generated during the production process.

[0003] Patent publication number CN214088186U relates to a device for disposing of hazardous chemical waste sludge, comprising a feed hopper, a conveyor box, a drying furnace, and a gas absorption device. The bottom end of the feed hopper is connected to the conveyor box. A first motor is installed on the outer side of one end of the conveyor box, with its motor shaft and rotating shaft connected. The rotating shaft is equipped with spiral blades. The other end of the conveyor box is connected to the drying furnace. The inner wall of the drying furnace is equipped with resistance wires. A second motor is installed above the drying furnace, with its motor shaft and stirring shaft centrally connected. Stirring blades are fixed on both sides of the stirring shaft. A gas absorption device is installed on one side of the second motor above the drying furnace. By setting up the conveyor box, the conveying speed and conveying volume can be controlled. By setting up the gas absorption device, the generated waste gas is treated to reduce its pollution to the environment. By setting up the stirring shaft and stirring blades, the hazardous waste sludge is stirred, accelerating its evaporation rate.

[0004] In the aforementioned patent, the generated waste gas is treated by setting up a gas absorption device to reduce its pollution to the environment. The hazardous waste sludge is stirred by setting up a stirring shaft and stirring blades to accelerate its evaporation rate. However, the sludge contains a large amount of water during the dewatering process. During the electric drying process, the water may react with the sludge at high temperature and generate harmful gases. Therefore, a hazardous waste sludge treatment device is designed that pre-dehydrates and quantitatively adds flocculant for mixing. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a hazardous waste sludge treatment device that solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a hazardous waste sludge treatment device, comprising a base, a treatment tank fixedly mounted on the top of the base, a motor fixedly mounted on the top of the treatment tank, a separator fixedly mounted on the top of the base, a motor fixedly mounted on the surface of the separator, and a dewatering device for pre-centrifugating and removing moisture from the sludge on the surface of the separator. The dewatering device includes a feed inlet that rotatably penetrates the surface of the separator. A sleeve is rotatably mounted on the surface of the separator, and a hollow spiral cylinder rotatably penetrates the surface of the separator. An outlet is fixedly penetrated through the circumference of the hollow spiral cylinder, and a discharge port is fixedly penetrated through the surface of the separator. A water pipe is used, and a sludge conveying pipe is fixedly inserted through the end of the hollow spiral cylinder away from the motor. A screen plate is sleeved on the inner wall of the treatment tank. A rotating shaft is fixedly installed at the output end of the motor. A gear is fixedly installed on the circumference of the rotating shaft. A gear ring is rotatably installed on the inner wall of the treatment tank. A stirring rod is sleeved on the inner wall of the treatment tank. This improves the consistency and uniformity of the flocculant, avoids uneven phenomena such as sedimentation and clumping of the flocculant in the feed cylinder, and ensures that each part of the flocculant has the same concentration and activity. Therefore, when it is mixed with sludge in the subsequent reaction, it can exert a more uniform flocculation effect, improve the flocculation effect, and enable the solid particles in the sludge to be more effectively aggregated together, which is convenient for subsequent separation and treatment.

[0007] According to the above technical solution, a gear two is fixedly installed on the circumferential surface of the stirring rod, a feed cylinder is fixedly inserted through the circumferential surface of the treatment tank, a reciprocating screw one is rotatably inserted through the top of the feed cylinder, a dispersing plate is slidably installed on the circumferential surface of the reciprocating screw one, and a limit plate is fixedly installed at the bottom of the dispersing plate, thereby realizing the initial solid-liquid separation of the sludge. This not only reduces the water content of the sludge in subsequent treatment stages, reducing the difficulty and cost of treatment, but also improves the treatment efficiency of the entire sludge treatment system, making the subsequent further treatment of the sludge more efficient and stable.

[0008] According to the above technical solution, the sludge conveying pipe is fixedly inserted through the circumference of the treatment tank, the sleeve is in contact with the hollow spiral cylinder, the feed inlet is connected to the motor by a transmission belt, the circumference of the stirring rod is provided with an extension rod, and the bottom of the inner wall of the treatment tank is provided with a sludge outlet hole to realize the quantitative addition of flocculant, improve the reaction effect between flocculant and sludge, and avoid the situation of adding too much or too little flocculant. Adding too much will cause waste of flocculant and increase treatment costs, while adding too little will lead to insufficient reaction between flocculant and sludge, affecting the sludge treatment effect. By quantitatively adding, it can be ensured that flocculant and sludge mix and react in a relatively stable manner, maximizing the utilization efficiency of flocculant and the sludge treatment effect.

[0009] According to the above technical solution, a transmission belt is connected between the rotating shaft and the reciprocating screw, the dispersing plate is connected to the reciprocating screw via a thread, a discharge port is provided at the bottom of the inner wall of the feed cylinder, the limiting plate is fitted with the discharge port, a differential is provided between the sleeve and the hollow spiral cylinder, and an activated carbon layer is provided inside the screen plate to further improve the reaction effect between the flocculant and the sludge. The stirring rod breaks up the sludge accumulation state, allowing the flocculant to come into more full contact with and react with the solid particles in the sludge. Whether it is sludge in the central area or the edge area of ​​the treatment tank, it can be fully mixed with the flocculant under the action of the stirring rod, thereby significantly improving the reaction effect between the flocculant and the sludge, further promoting the coagulation and sedimentation of solid particles in the sludge, and improving the quality and efficiency of sludge treatment.

[0010] According to the above technical solution, the circumferential surface of the stirring rod is provided with an anti-clogging device to prevent the screen plate from clogging. The anti-clogging device includes a shredding cylinder, which is fixedly installed on the circumferential surface of the stirring rod. A second screen plate is slidably installed on the inner wall of the treatment tank. A first cleaning ring is fixedly installed on the circumferential surface of the first rotating shaft. A toothed block is fixedly installed at the bottom of the first screen plate. A third screen plate is fixedly installed on the inner wall of the treatment tank. A telescopic spring rod is fixedly installed on the surface of the third screen plate. A scraper ring is fixedly installed on the surface of the first screen plate. A second cleaning ring is fixedly installed on the circumferential surface of the first rotating shaft. The device scrapes off the sludge adhering to or sticking to the inner wall of the treatment tank, preventing the sludge from accumulating and clumping on the inner wall of the treatment tank, which would affect the operation of the equipment and the treatment effect. Furthermore, if the sludge on the inner wall of the treatment tank is not cleaned in time, it will continue to accumulate and thicken, which will not only occupy the effective space of the treatment tank and reduce the amount of sludge treated, but may also affect the normal flow and reaction of the sludge in the tank, resulting in a decrease in the treatment effect.

[0011] According to the above technical solution, the toothed block meshes with the second cleaning ring, the free end of the first telescopic spring rod is fixedly connected to the bottom of the first sieve plate, and the scraper ring is fixedly connected to the bottom of the second sieve plate. This breaks up the large flocculent sludge particles inside the sludge that are generated by the reaction with the flocculant. Mechanical force is applied to these large flocculent sludge particles to break them into smaller particles.

[0012] According to the above technical solution, the scraper ring is slidably connected to the inner wall of the treatment tank, the surface of the second cleaning ring is provided with a scraper, and the circumferential surface of the shredding cylinder is provided with protrusions. This achieves a self-cleaning effect on the screen plate and the screen plate that may become clogged during operation, thus avoiding screen plate clogging and affecting the filtration and treatment efficiency of sludge, or even causing the entire treatment process to be interrupted. It also avoids frequent manual cleaning of the screen plates, improves work efficiency, and ensures continuous operation of the equipment.

[0013] According to the above technical solution, the bottom of the screen plate one is provided with a sludge discharge device for pressing and filtering the treated sludge. The sludge discharge device includes a sliding rod, which is fixedly installed at the bottom of the screen plate one. A pressure plate is slidably installed on the inner wall of the treatment tank. A sleeve plate is fixedly installed at the bottom of the treatment tank. A C-shaped plate is fixedly installed on the circumferential surface of the sleeve plate. An arc block is fixedly installed on the circumferential surface of the sleeve plate. A reciprocating screw two is fixedly installed on the inner wall of the treatment tank. A fixing ring is rotatably installed at the bottom of the reciprocating screw two. A chamfered block is rotatably installed on the surface of the reciprocating screw two. A sleeve plate is sleeved on the circumferential surface of the fixing ring. A telescopic spring rod two is fixedly installed at the top of the sleeve plate. A telescopic striking rod is fixedly installed at the bottom of the sleeve plate. This prevents the sludge after dewatering from clogging the sludge discharge hole and affecting the sludge discharge efficiency of the equipment, thus maintaining a stable and efficient sludge discharge efficiency. Once the sludge discharge hole is clogged, the sludge discharge efficiency of the equipment will be greatly reduced, and it may even cause the entire treatment process to stop.

[0014] According to the above technical solution, the sliding rod slides through the surface of the screen plate three, the sliding rod is fixedly connected to the pressure plate, and the surface of the C-shaped plate away from the sleeve plate is set as arc surface one, which requires manual cleaning of the mud holes, which not only consumes manpower and time, but also affects the production progress.

[0015] According to the above technical solution, the surface of the oblique cut block is set as arc surface two, the free end of the telescopic spring rod two is fixedly connected to the reciprocating screw two, the screen plate two is connected to the fixed ring by a thread, and the surface of the arc block is set as arc surface three, which improves the passability of sludge on the surface of screen plate two, improves the operating efficiency of the equipment, can effectively shake off the sludge accumulated on the surface of screen plate two, keep the screen holes of screen plate two unobstructed, and improve the passability of sludge on the surface of screen plate two.

[0016] This invention provides a hazardous waste sludge treatment device. It has the following beneficial effects:

[0017] (1) The hazardous waste sludge treatment device pumps the sludge after preliminary dewatering into the treatment tank through the sludge conveying pipe, while the water overflows through the outlet. The separated water then flows out through the drain pipe, achieving preliminary solid-liquid separation of the sludge. This not only reduces the water content of the sludge in subsequent treatment stages, lowering the treatment difficulty and cost, but also improves the treatment efficiency of the entire sludge treatment system, making the subsequent further treatment of the sludge more efficient and stable. The rotating belt drives the reciprocating screw to rotate. At this time, the staff adds flocculant into the feed cylinder. The reciprocating screw rotates and drives the dispersing plate to rotate, stirring the flocculant and improving the consistency and uniformity of the flocculant. This avoids uneven phenomena such as sedimentation and clumping of the flocculant in the feed cylinder, ensuring that each part of the flocculant has the same concentration and activity. Thus, when it is mixed and reacted with the sludge in the subsequent stage, it can play a more uniform flocculation role, improve the flocculation effect, and make the solid particles in the sludge more effectively aggregate together, which is convenient for subsequent separation and treatment.

[0018] (2) The hazardous waste sludge treatment device moves the dispersing plate downwards, which drives the limiting plate downwards until it restricts the discharge port inside the feed cylinder. Then, the limiting plate moves upwards under the action of the reciprocating screw until it releases the restriction on the discharge port, thereby realizing the quantitative addition of flocculant, improving the reaction effect between flocculant and sludge, and avoiding the situation of adding too much or too little flocculant. Adding too much will cause waste of flocculant and increase treatment costs, while adding too little will lead to insufficient reaction between flocculant and sludge, affecting the treatment effect of sludge. By quantitatively adding flocculant, it can be ensured that flocculant and sludge are mixed and reacted in a relatively stable manner, maximizing the utilization efficiency of flocculant and the treatment effect of sludge.

[0019] (3) In this hazardous waste sludge treatment device, the stirring rod rotates on its own axis while revolving around the center to stir the sludge and flocculant accumulated inside the treatment tank, further improving the reaction effect between the flocculant and the sludge. The stirring rod breaks up the sludge accumulation state, allowing the flocculant to come into contact with and react more fully with the solid particles in the sludge. Whether it is the sludge in the central area or the edge area of ​​the treatment tank, it can be fully mixed with the flocculant under the action of the stirring rod, thereby significantly improving the reaction effect between the flocculant and the sludge, further promoting the coagulation and sedimentation of solid particles in the sludge, and improving the quality and efficiency of sludge treatment.

[0020] (4) In this hazardous waste sludge treatment device, the sludge after preliminary dewatering enters the interior of the treatment tank through the sludge conveying pipe. The shredding cylinder rotates to break up the large flocculent sludge particles generated by the reaction with the flocculant inside the sludge. Mechanical force is applied to these large flocculent sludge particles to break them into smaller particles. The screen plate 2 will be blocked and move downward under the pressure of the sludge and water continuously discharged into the treatment tank. When the screen plate 2 moves downward, it drives the scraper ring to move. The scraper ring moves to scrape off the sludge attached or sticking to the inner wall of the treatment tank, avoiding the accumulation and caking of sludge on the inner wall of the treatment tank, which will affect the operation of the equipment and the treatment effect. Moreover, if the sludge on the inner wall of the treatment tank is not cleaned in time, it will continue to accumulate and thicken, which will not only occupy the effective space of the treatment tank and reduce the amount of sludge treated, but may also affect the normal flow and reaction of sludge in the tank, resulting in a decrease in the treatment effect.

[0021] (5) The hazardous waste sludge treatment device moves the second screen plate downward to contact the surface of the first cleaning ring. The first cleaning ring rotates to scrape the sludge from the surface of the second screen plate. This achieves a self-cleaning effect on the blockage of the second and first screen plates during operation, avoiding the blockage of the screen plates and thus affecting the filtration and treatment efficiency of the sludge, or even causing the entire treatment process to be interrupted. It also avoids frequent manual cleaning of the screen plates, improves work efficiency, and ensures the continuous operation of the equipment.

[0022] (6) The hazardous waste sludge treatment device moves the C-shaped plate downward by moving the pressure plate downward. The C-shaped plate moves and contacts and collides with the surface of the arc block to vibrate. The vibration of the sleeve plate is transmitted to the surface of the treatment tank to prevent the sludge after dewatering from clogging the sludge outlet hole and thus affecting the sludge discharge efficiency of the equipment. It maintains the stable and efficient sludge discharge efficiency of the equipment. Once the sludge outlet hole is blocked, the sludge discharge efficiency of the equipment will be greatly reduced, and it may even cause the entire treatment process to stop. The sludge outlet hole needs to be cleaned manually, which not only consumes manpower and time, but also affects the production progress. The movement of the sleeve plate drives the telescopic striking rod to move downward to strike the surface of the second screen plate, which improves the passability of sludge on the surface of the second screen plate and improves the operating efficiency of the equipment. It can effectively shake off the sludge accumulated on the surface of the second screen plate, keep the screen holes of the second screen plate unobstructed, and improve the passability of sludge on the surface of the second screen plate. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the overall internal structure of the present invention;

[0025] Figure 3 This is a schematic diagram showing the positional structure of the sleeve and the hollow spiral cylinder of the present invention;

[0026] Figure 4 This is a schematic diagram showing the positional structure of the rotating shaft and the stirring rod of the present invention;

[0027] Figure 5 This is an enlarged schematic diagram of structure A in part 4 of the present invention;

[0028] Figure 6 This is a schematic diagram showing the positional structure of the shredding cylinder and the stirring rod of the present invention;

[0029] Figure 7 For the present invention Figure 6 Enlarged schematic diagram of the B-structure section;

[0030] Figure 8 This is a schematic diagram showing the positional structure of the sieve plate and the sliding rod of the present invention;

[0031] Figure 9 This is an enlarged schematic diagram of the C structure portion in Invention 8 of this invention;

[0032] Figure 10 This is a schematic diagram of the positional structure of the C-shaped plate and the arc block of the present invention.

[0033] In the diagram: 1. Base; 2. Processing tank; 3. Motor 1; 4. Separator; 5. Motor 2; 61. Feed inlet; 62. Sleeve; 63. Hollow spiral drum; 64. Water outlet; 65. Drain pipe; 66. Sludge conveying pipe; 67. Screen plate 1; 68. Rotating shaft 1; 69. Gear 1; 610. Gear ring; 611. Stirring rod; 612. Gear 2; 613. Feed cylinder; 614. Reciprocating screw 1; 615. Dispersing plate; 6 16. Limiting plate; 71. Shredding cylinder; 72. Screen plate II; 73. Cleaning ring I; 74. Toothed block; 75. Screen plate III; 76. Telescopic spring rod I; 77. Scraper ring; 78. Cleaning ring II; 81. Sliding rod; 82. Pressure plate; 83. Sleeve disc; 84. C-shaped plate; 85. Arc block; 86. Reciprocating screw II; 87. Fixing ring; 88. Beveled cutting block; 89. Sleeve plate; 810. Telescopic spring rod II; 811. Telescopic striking rod. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figures 1-10One embodiment of the present invention is as follows: a hazardous waste sludge treatment device includes a base 1, a treatment tank 2 fixedly installed on the top of the base 1, a motor 3 fixedly installed on the top of the treatment tank 2, a separator 4 fixedly installed on the top of the base 1, a motor 5 fixedly installed on the surface of the separator 4, and a dewatering device for pre-centrifuging and removing moisture from the sludge on the surface of the separator 4. The dewatering device includes an inlet 61 that rotatably penetrates the surface of the separator 4, a sleeve 62 rotatably installed on the surface of the separator 4, a hollow spiral cylinder 63 rotatably penetrating the surface of the separator 4, and an outlet 64 fixedly penetrating the circumferential surface of the hollow spiral cylinder 63. A drain pipe 65 is fixedly inserted through the surface of machine 4. A mud conveying pipe 66 is fixedly inserted through the end of hollow spiral cylinder 63 away from motor 5. A screen plate 67 is sleeved on the inner wall of treatment tank 2. A rotating shaft 68 is fixedly installed at the output end of motor 3. A gear 69 is fixedly installed on the circumference of rotating shaft 68. A gear ring 610 is rotatably installed on the inner wall of treatment tank 2. A stirring rod 611 is sleeved on the inner wall of treatment tank 2. The rotation of rotating shaft 68 drives gear 69 to rotate. Since gear 69 meshes with gear 612, the rotation of gear 69 drives gear 612 to revolve around rotating shaft 68 while rotating on its own axis. The rotation of gear 612 drives stirring rod 611 to rotate.

[0036] Gear 612 is fixedly installed on the circumferential surface of stirring rod 611. Feed cylinder 613 is fixedly inserted through the circumferential surface of processing tank 2. Reciprocating screw 614 is rotatably inserted through the top of feed cylinder 613. Dispersing plate 615 is slidably installed on the circumferential surface of reciprocating screw 614. Limiting plate 616 is fixedly installed at the bottom of dispersing plate 615. Dispersing plate 615 moves downward, causing limiting plate 616 to move downward until the discharge port opened inside feed cylinder 613 is restricted.

[0037] The mud conveying pipe 66 is fixedly inserted through the circumference of the treatment tank 2. The sleeve 62 is in contact with the hollow spiral cylinder 63. The feed inlet 61 is connected to the motor 5 by a transmission belt. An extension rod is provided on the circumference of the stirring rod 611. A mud outlet hole is opened at the bottom of the inner wall of the treatment tank 2. Then, the limiting plate 616 moves upward under the action of the reciprocating screw 614 until the restriction on the discharge port is released.

[0038] A transmission belt is connected between the rotating shaft 68 and the reciprocating screw 614. The dispersing plate 615 is connected to the reciprocating screw 614 by a thread. The bottom of the inner wall of the feed cylinder 613 has a discharge port. The limiting plate 616 fits with the discharge port. A differential is provided between the sleeve 62 and the hollow spiral cylinder 63. The sleeve 62 and the hollow spiral cylinder 63 rotate with a certain speed difference, pushing the sludge particles deposited on the inner wall of the hollow spiral cylinder 63 toward the direction close to the sludge conveying pipe 66. The inside of the screen plate 67 is provided with an activated carbon layer.

[0039] In this embodiment, during operation: sludge containing a large amount of moisture is discharged through inlet 61. Motor 5 is started, and its output rotates, driving inlet 61 to rotate. Simultaneously, the rotation of inlet 61 drives sleeve 62 to rotate, which in turn drives hollow spiral drum 63 to rotate. Because a differential gear is installed between sleeve 62 and hollow spiral drum 63, their rotational speeds differ. At this time, the sludge containing a large amount of moisture enters the interior of hollow spiral drum 63. The rotation of hollow spiral drum 63, through centrifugal force, throws the denser sludge particles towards the inner wall of hollow spiral drum 63, while the moisture forms an inner ring at the center. Simultaneously, the rotation of sleeve 62 and hollow spiral drum 63 with a certain speed difference dissipates the sludge deposited on the inner wall of hollow spiral drum 63. The sludge particles are pushed towards the sludge conveying pipe 66. The initially dewatered sludge is then pumped into the treatment tank 2 through the sludge conveying pipe 66, while the water overflows through the outlet 64. The separated water then flows out through the drain pipe 65, achieving initial solid-liquid separation of the sludge. This not only reduces the water content of the sludge in subsequent treatment stages, lowering the treatment difficulty and cost, but also improves the overall efficiency of the sludge treatment system, making further sludge treatment more efficient and stable. When the sludge enters the treatment tank 2, motor 3 is started. The output of motor 3 rotates, driving shaft 68 to rotate. Simultaneously, the rotation of shaft 68 drives belt 2 to rotate, which in turn drives reciprocating screw 614 to rotate. At this time, the operator... The flocculant is added into the feed cylinder 613. The reciprocating screw 614 rotates, driving the dispersing plate 615 to rotate, stirring the flocculant and improving its consistency and uniformity. This prevents uneven phenomena such as sedimentation and clumping within the feed cylinder 613, ensuring that each part of the flocculant has the same concentration and activity. This allows for more uniform flocculation during subsequent mixing and reaction with sludge, improving the flocculation effect and enabling solid particles in the sludge to more effectively aggregate, facilitating subsequent separation and treatment. Simultaneously, because the reciprocating screw 614 and the dispersing plate 615 are connected by threads, the downward movement of the dispersing plate 615 drives the limiting plate 616 downward until it restricts the discharge port inside the feed cylinder 613. The position plate 616 moves upward under the action of the reciprocating screw 614 until it releases the restriction on the discharge port, realizing the quantitative addition of flocculant. This improves the reaction effect between the flocculant and sludge, avoiding the situation of adding too much or too little flocculant. Adding too much flocculant will waste flocculant and increase treatment costs, while adding too little will lead to insufficient reaction between the flocculant and sludge, affecting the sludge treatment effect. Through quantitative addition, it can be ensured that the flocculant and sludge mix and react in a relatively stable manner, maximizing the utilization efficiency of flocculant and the sludge treatment effect. The rotation of the shaft 68 drives the gear 69 to rotate. Since the gear 69 meshes with the gear 612, the rotation of the gear 69 drives the gear 612 to revolve around the shaft 68 while rotating on its own axis.Gear 612 rotates, driving the stirring rod 611 to rotate as well. The stirring rod 611 revolves around and rotates on its own axis, agitating the sludge and flocculant accumulated inside the treatment tank 2. This further enhances the reaction between the flocculant and sludge. The stirring rod 611 breaks up the sludge's accumulation, allowing the flocculant to more fully contact and react with the solid particles in the sludge. Whether in the central or peripheral areas of the treatment tank 2, the sludge is thoroughly mixed with the flocculant under the action of the stirring rod 611, significantly improving the reaction between the flocculant and sludge. This further promotes the coagulation and sedimentation of solid particles in the sludge, improving the quality and efficiency of sludge treatment. The sludge then passes through the sieve plate 67 and flows to the bottom of the treatment tank 2. The separated water is discharged through a drain on the surface of the treatment tank 2, while the sludge is discharged through a sludge outlet at the bottom of the inner wall of the treatment tank 2.

[0040] Please see Figures 1-10 Based on the above embodiments, in another embodiment of the present invention, the circumferential surface of the stirring rod 611 is provided with an anti-clogging device to prevent the screen plate from clogging. The anti-clogging device includes a shredding cylinder 71, which is fixedly installed on the circumferential surface of the stirring rod 611. A second screen plate 72 is slidably installed on the inner wall of the treatment tank 2. A first cleaning ring 73 is fixedly installed on the circumferential surface of the first rotating shaft 68. A toothed block 74 is fixedly installed at the bottom of the first screen plate 67. A third screen plate 75 is fixedly installed on the inner wall of the treatment tank 2. A first telescopic spring rod 76 is fixedly installed on the surface of the third screen plate 75. A scraper ring 77 is fixedly installed on the surface of the first screen plate 67. The second screen plate 72 moves downward, causing the scraper ring 77 to move. The movement of the scraper ring 77 scrapes off the sludge attached or adhering to the inner wall of the treatment tank 2. A second cleaning ring 78 is fixedly installed on the circumferential surface of the first rotating shaft 68.

[0041] The toothed block 74 engages with the cleaning ring 78, the free end of the telescopic spring rod 76 is fixedly connected to the bottom of the screen plate 67, and the scraper ring 77 is fixedly connected to the bottom of the screen plate 72. The movement of the screen plate 67 drives the scraper ring 77 to move, thus performing secondary cleaning and sludge scraping on the inner wall of the treatment tank 2.

[0042] The scraper ring 77 is slidably connected to the inner wall of the treatment tank 2. The surface of the cleaning ring 78 is provided with a scraper. The circumferential surface of the shredding cylinder 71 is provided with a protrusion. The stirring rod 611 rotates under the action of the gear 69, which drives the shredding cylinder 71 to revolve around the shaft 68 and rotate on its own axis.

[0043] The bottom of the screen plate 67 is equipped with a sludge discharge device for pressing and filtering the treated sludge. The sludge discharge device includes a sliding rod 81, which is fixedly installed at the bottom of the screen plate 67. A pressure plate 82 is slidably installed on the inner wall of the treatment tank 2. A sleeve plate 83 is fixedly installed at the bottom of the treatment tank 2. A C-shaped plate 84 is fixedly installed on the circumferential surface of the sleeve plate 83. An arc block 85 is fixedly installed on the circumferential surface of the sleeve plate 83. A reciprocating screw 86 is fixedly installed on the inner wall of the treatment tank 2. A fixing ring 87 is rotatably installed at the bottom of the reciprocating screw 86. A beveled block 88 is rotatably installed on the surface of the reciprocating screw 86. A sleeve plate 89 is sleeved on the circumferential surface of the fixing ring 87. A telescopic spring rod 810 is fixedly installed at the top of the sleeve plate 89. A telescopic striking rod 811 is fixedly installed at the bottom of the sleeve plate 89. The movement of the sleeve plate 89 drives the telescopic striking rod 811 to move downward and strike the surface of the screen plate 72.

[0044] The sliding rod 81 slides through the surface of the screen plate 75. The sliding rod 81 is fixedly connected to the pressure plate 82. The surface of the C-shaped plate 84 away from the sleeve plate 83 is set as the arc surface. The C-shaped plate 84 moves to contact and collide with the surface of the arc block 85, causing vibration. The vibration of the sleeve plate 83 transmits the vibration to the surface of the processing tank 2.

[0045] The surface of the oblique cut block 88 is set as arc surface two. The free end of the telescopic spring rod two 810 is fixedly connected to the reciprocating screw two 86. The screen plate two 72 and the fixed ring 87 are connected by threads. The movement of the screen plate two 72 drives the fixed ring 87 to rotate. The rotation of the fixed ring 87 drives the oblique cut block 88 to rotate. The surface of the arc block 85 is set as arc surface three.

[0046] In this embodiment, during operation: The stirring rod 611 rotates under the action of gear 69, causing the shredding cylinder 71 to revolve around the rotating shaft 68 while simultaneously rotating on its own axis. The pre-dehydrated sludge enters the treatment tank 2 through the sludge conveying pipe 66. The rotation of the shredding cylinder 71 breaks down the large flocculent sludge particles generated by the reaction with the flocculant. Mechanical force is applied to these large flocculent sludge particles, breaking them down into smaller particles so that they can pass well through the sieve plate 72 for filtration. When the sieve plate 72 is clogged with sludge, the sieve plate 72 will... Under the pressure of the continuously discharged sludge and water, the sludge inside treatment tank 2 becomes clogged and moves downwards. As the screen plate 72 moves downwards, it drives the scraper ring 77 to move. The scraper ring 77 scrapes off the sludge adhering to or sticking to the inner wall of treatment tank 2, preventing sludge buildup and clumping, which would affect equipment operation and treatment efficiency. Furthermore, if the sludge on the inner wall of treatment tank 2 is not cleaned in time, it will continuously accumulate and thicken, not only occupying the effective space of treatment tank 2 and reducing the amount of sludge processed, but also potentially affecting the normal flow and reaction of sludge within the tank, leading to a decrease in treatment efficiency. As the scraper ring 77 moves downwards, it drives the screen plate 67 to move. Simultaneously, the movement of the screen plate 67 drives the toothed block 74 downwards until it engages with the cleaning ring 78. At this point, the scraper on the surface of the cleaning ring 78 contacts the bottom of the screen plate 67. The cleaning ring 78 rotates, driving the screen plate 67 to move and cleaning the sludge clogging its surface. At the same time, the screen plate 72 moves downwards and contacts the surface of the cleaning ring 73. The cleaning ring 73 rotates and scrapes the sludge from the surface of the screen plate 72. This process achieves cleaning of both the screen plate 72 and the screen plate 67. The self-cleaning effect prevents clogging of the screen plate during operation, thus avoiding clogging that could affect the filtration and treatment efficiency of sludge and even cause the entire treatment process to be interrupted. It also avoids frequent manual cleaning of the screen plate, improving work efficiency and ensuring continuous operation of the equipment. When the surfaces of screen plate 2 72 and screen plate 1 67 are unobstructed, the telescopic spring rod 1 76 deforms and returns to its original position, causing screen plate 1 67 to move upward and reset. At the same time, the movement of screen plate 1 67 causes scraper ring 77 to move, performing secondary cleaning and scraping of sludge on the inner wall of treatment tank 2. The upward movement of scraper ring 77 causes screen plate 2 72 to reset.

[0047] When the screen plate 67 moves downward under the action of the scraper ring 77, it drives the sliding rod 81 to move. The movement of the sliding rod 81 drives the pressure plate 82 to move downward, pressing and filtering the sludge. Subsequently, the sludge is squeezed into a long strip shape through the sludge outlet hole under the action of the pressure plate 82. At the same time, the downward movement of the pressure plate 82 drives the C-shaped plate 84 to move. The C-shaped plate 84 moves and contacts and collides with the surface of the arc block 85, causing vibration. The vibration of the sleeve plate 83 transmits the vibration to the surface of the treatment tank 2, preventing the sludge after dewatering from clogging the sludge outlet hole and thus affecting the sludge discharge efficiency of the equipment. This maintains the stable and efficient sludge discharge efficiency of the equipment. Once the sludge outlet hole is clogged, the sludge discharge efficiency of the equipment will be greatly reduced, and it may even cause the entire processing process to stop. Manual cleaning of the sludge outlet hole is required, which is not only labor-intensive but also wasteful. The movement of the screen plate 67 downwards also affects the production schedule. Simultaneously, the downward movement of the screen plate 67 drives the scraper ring 77 to move, which in turn drives the screen plate 72 downwards. Since the screen plate 72 and the fixed ring 87 are connected by threads, the movement of the screen plate 72 drives the fixed ring 87 to rotate. The rotation of the fixed ring 87 drives the oblique cutting block 88 to rotate. The oblique cutting block 88 rotates and contacts and squeezes the sleeve plate 89 downwards. The movement of the sleeve plate 89 drives the telescopic striking rod 811 to move downwards and strike the surface of the screen plate 72, improving the passability of sludge on the surface of the screen plate 72 and improving the operating efficiency of the equipment. It can effectively shake off the sludge accumulated on the surface of the screen plate 72, keep the screen holes of the screen plate 72 unobstructed, and improve the passability of sludge on the surface of the screen plate 72.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hazardous waste sludge treatment device, comprising a base (1), characterized in that: A processing tank (2) is fixedly installed on the top of the base (1), a motor (3) is fixedly installed on the top of the processing tank (2), a separator (4) is fixedly installed on the top of the base (1), a motor (5) is fixedly installed on the surface of the separator (4), and a dewatering device for pre-centrifugating and removing water from the sludge is provided on the surface of the separator (4). The dewatering device includes a feed inlet (61), which rotatably penetrates the surface of the separator (4). A sleeve (62) is rotatably installed on the surface of the separator (4), and a hollow spiral cylinder (6) rotatably penetrates the surface of the separator (4). 3) A water outlet (64) is fixedly inserted through the circumference of the hollow spiral cylinder (63), a drain pipe (65) is fixedly inserted through the surface of the separator (4), a mud conveying pipe (66) is fixedly inserted through the end of the hollow spiral cylinder (63) away from the motor (5), a screen plate (67) is sleeved on the inner wall of the treatment tank (2), a rotating shaft (68) is fixedly installed at the output end of the motor (3), a gear (69) is fixedly installed on the circumference of the rotating shaft (68), a gear ring (610) is rotatably installed on the inner wall of the treatment tank (2), and a stirring rod (611) is sleeved on the inner wall of the treatment tank (2). Gear 2 (612) is fixedly installed on the circumferential surface of the stirring rod (611), and feed cylinder (613) is fixedly passed through the circumferential surface of the processing tank (2). Reciprocating screw 1 (614) is rotatably passed through the top of the feed cylinder (613). Dispersing plate (615) is slidably installed on the circumferential surface of reciprocating screw 1 (614), and limiting plate (616) is fixedly installed at the bottom of the dispersing plate (615). The mud conveying pipe (66) is fixedly inserted through the circumference of the treatment tank (2), the sleeve (62) is in contact with the hollow spiral cylinder (63), the feed inlet (61) is connected to the motor (5) by a transmission belt, the circumference of the stirring rod (611) is provided with an extension rod, and the bottom of the inner wall of the treatment tank (2) is provided with a mud outlet hole. A transmission belt is connected between the rotating shaft (68) and the reciprocating screw (614). The dispersing plate (615) is connected to the reciprocating screw (614) by a thread. The bottom of the inner wall of the feed cylinder (613) is provided with a discharge port. The limiting plate (616) is attached to the discharge port. A differential is provided between the sleeve (62) and the hollow spiral cylinder (63). An activated carbon layer is provided inside the sieve plate (67).

2. The hazardous waste sludge treatment device according to claim 1, characterized in that: The stirring rod (611) is provided with an anti-clogging device on its circumferential surface to prevent the screen plate from clogging. The anti-clogging device includes a shredding cylinder (71), which is fixedly installed on the circumferential surface of the stirring rod (611). A second screen plate (72) is slidably installed on the inner wall of the processing tank (2). A first cleaning ring (73) is fixedly installed on the circumferential surface of the first rotating shaft (68). A toothed block (74) is fixedly installed at the bottom of the first screen plate (67). A third screen plate (75) is fixedly installed on the inner wall of the processing tank (2). A first telescopic spring rod (76) is fixedly installed on the surface of the third screen plate (75). A scraper ring (77) is fixedly installed on the surface of the first screen plate (67). A second cleaning ring (78) is fixedly installed on the circumferential surface of the first rotating shaft (68).

3. The hazardous waste sludge treatment device according to claim 2, characterized in that: The toothed block (74) engages with the cleaning ring (78), the free end of the telescopic spring rod (76) is fixedly connected to the bottom of the sieve plate (67), and the scraper ring (77) is fixedly connected to the bottom of the sieve plate (72).

4. The hazardous waste sludge treatment device according to claim 3, characterized in that: The scraper ring (77) is slidably connected to the inner wall of the treatment tank (2), the surface of the cleaning ring (78) is provided with a scraper, and the circumferential surface of the shredding cylinder (71) is provided with a protrusion.

5. The hazardous waste sludge treatment device according to claim 4, characterized in that: The bottom of the sieve plate (67) is provided with a sludge discharge device for pressing and filtering the treated sludge. The sludge discharge device includes a sliding rod (81), which is fixedly installed at the bottom of the sieve plate (67). A pressure plate (82) is slidably installed on the inner wall of the treatment tank (2). A sleeve plate (83) is fixedly installed at the bottom of the treatment tank (2). A C-shaped plate (84) is fixedly installed on the circumferential surface of the sleeve plate (83). An arc is fixedly installed on the circumferential surface of the sleeve plate (83). Block (85), a reciprocating screw two (86) is fixedly installed on the inner wall of the processing tank (2), a fixed ring (87) is rotatably installed on the bottom of the reciprocating screw two (86), a beveled block (88) is rotatably installed on the surface of the reciprocating screw two (86), a sleeve plate (89) is sleeved on the circumferential surface of the fixed ring (87), a telescopic spring rod two (810) is fixedly installed on the top of the sleeve plate (89), and a telescopic striking rod (811) is fixedly installed on the bottom of the sleeve plate (89).

6. The hazardous waste sludge treatment device according to claim 5, characterized in that: The sliding rod (81) slides through the surface of the screen plate three (75), the sliding rod (81) is fixedly connected to the pressure plate (82), and the surface of the C-shaped plate (84) away from the sleeve plate (83) is set as an arc surface one.

7. A hazardous waste sludge treatment device according to claim 6, characterized in that: The surface of the oblique cut block (88) is set as arc surface two, the free end of the telescopic elastic rod two (810) is fixedly connected to the reciprocating screw two (86), the sieve plate two (72) and the fixed ring (87) are connected by threads, and the surface of the arc block (85) is set as arc surface three.

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