Hazardous waste sludge treatment device

Abstract

The invention discloses a hazardous waste sludge treatment device, and relates to the technical field of sludge treatment.The hazardous waste sludge treatment device comprises a base, a treatment tank is fixedly installed at the top of the base, a first motor is fixedly installed at the top of the treatment tank, and a separator is fixedly installed at the top of the base; according to the hazardous waste sludge treatment device, sludge subjected to primary dehydration is pumped into the treatment tank through a sludge conveying pipe, water overflows through a water outlet, then the separated water flows out through a water drainage pipe, primary solid-liquid separation of the sludge is achieved, and the sludge is subjected to secondary solid-liquid separation; the water content of the sludge in the subsequent treatment link can be reduced, the treatment difficulty and cost can be reduced, the treatment efficiency of the whole sludge treatment system can be improved, and the subsequent further treatment on the sludge can be more efficiently and stably carried out.

Description

Technical Field

[0001] The present invention relates to the technical field of sludge treatment, and specifically to a hazardous waste sludge treatment device. Background Art

[0002] A device for disposing of hazardous waste sludge is a device used to treat hazardous waste sludge generated during the production process.

[0003] The patent with the patent announcement number CN214088186U relates to a device for disposing of chemical hazardous waste sludge, including a feed hopper, a conveying box, a drying furnace, and a gas absorption device. The bottom end of the feed hopper is communicated with the conveying box. A first motor is installed on the outer side of one end of the conveying box. The motor shaft of the first motor is connected to a rotating shaft, and a spiral blade is provided on the rotating shaft. The other end of the conveying box is communicated with the drying furnace. Resistance wires are provided on the inner wall of the drying furnace. A second motor is installed above the drying furnace. The motor shaft of the second motor is axially connected to a stirring shaft, and stirring blades are fixed on both sides of the stirring shaft. A gas absorption device is provided on one side of the second motor above the drying furnace. By setting the conveying box, the conveying speed and the conveying volume can be controlled. By setting the gas absorption device, the generated waste gas is treated to reduce its pollution to the environment. By setting the stirring shaft and the stirring blades, the hazardous waste sludge is stirred to accelerate its evaporation speed.

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

[0005] Aiming at the deficiencies of the prior art, the present invention provides a hazardous waste sludge treatment device, which solves the problems raised in the above background art.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a hazardous waste sludge treatment device, comprising a base, a treatment tank is fixedly installed on the top of the base, a motor 1 is fixedly installed on the top of the treatment tank, a separator is fixedly installed on the top of the base, a motor 2 is fixedly installed on the surface of the separator, a dehydration device for pre-centrifugal removal of water from the sludge is provided on the surface of the separator, the dehydration device comprises a feed inlet, the feed inlet rotates through the surface of the separator, a sleeve is rotatably installed on the surface of the separator, a hollow spiral cylinder is rotatably penetrated on the surface of the separator, a water outlet is fixedly penetrated on the circumferential surface of the hollow spiral cylinder, and a drain is fixedly penetrated on the surface of the separator. A water pipe is provided, and a mud conveying pipe is fixedly passed through the end of the hollow spiral cylinder away from the motor 2. A sieve plate 1 is sleeved on the inner wall of the treatment tank. A rotating shaft 1 is fixedly installed on the output end of the motor 1, and a gear 1 is fixedly installed on the circumferential surface of the rotating shaft 1. 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 to improve the consistency and uniformity of the flocculant, avoid uneven phenomena such as precipitation and agglomeration of the flocculant in the feed barrel, and ensure that each part of the flocculant has the same concentration and activity, so that in the subsequent mixing reaction with the sludge, the flocculation effect can be more evenly exerted, the flocculation effect can be improved, and the solid particles in the sludge can be more effectively condensed together, which is convenient for subsequent separation and treatment.

[0007] According to the above technical solution, a gear 2 is fixedly installed on the circumferential surface of the stirring rod, a feed barrel is fixedly passed through the circumferential surface of the processing tank, a reciprocating screw 1 is rotatably passed through the top of the feed barrel, a breaking plate is slidably installed on the circumferential surface of the reciprocating screw 1, and a limiting plate is fixedly installed on the bottom of the breaking plate to realize the preliminary solid-liquid separation of the sludge, which can not only reduce the water content of the sludge in the subsequent processing links, reduce the processing difficulty and cost, but also improve the processing efficiency of the entire sludge treatment system, so that the subsequent further processing of the sludge is more efficient and stable.

[0008] According to the above technical solution, the mud delivery pipe is fixedly passed through the circumferential surface of the treatment tank, the sleeve is in contact with the hollow spiral cylinder, the feed port and the motor 2 are connected by a transmission belt 1, the circumferential surface 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 mud outlet hole, so as to realize the quantitative input of the flocculant, improve the reaction effect of the flocculant and the sludge, and avoid the situation of excessive or insufficient input of flocculant. Excessive input will cause waste of flocculant and increase treatment cost, while insufficient input will lead to insufficient reaction of flocculant and sludge, affecting the treatment effect of the sludge. Through quantitative input, it can be ensured that the flocculant and sludge are mixed and reacted in a relatively stable manner, thereby maximizing the utilization efficiency of the flocculant and the treatment effect of the sludge.

[0009] According to the above technical solution, a second transmission belt is connected between the first rotating shaft and the first reciprocating lead screw. The dispersion plate is connected to the first reciprocating lead screw by a thread. A discharge port is formed at the bottom of the inner wall of the feed cylinder. The limiting plate is attached to the discharge port. A differential is provided between the sleeve and the hollow spiral cylinder. An activated carbon layer is provided inside the first sieve plate, which further improves the reaction effect between the flocculant and the sludge. By means of the stirring rod, the accumulated state of the sludge is broken, so that the flocculant can come into contact with and react with the solid particles in the sludge more fully. 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, thus significantly improving the reaction effect between the flocculant and the sludge, further promoting the aggregation and sedimentation of the solid particles in the sludge, and improving the quality and efficiency of sludge treatment.

[0010] According to the above technical solution, an anti-blocking device for preventing the sieve plate from being blocked is arranged on the circumferential surface of the stirring rod. The anti-blocking device includes a shredding cylinder. The shredding cylinder is fixedly installed on the circumferential surface of the stirring rod. A second sieve 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. Tooth blocks are fixedly installed at the bottom of the first sieve plate. A third sieve plate is fixedly installed on the inner wall of the treatment tank. A first telescopic elastic rod is fixedly installed on the surface of the third sieve plate. A scraping ring is fixedly installed on the surface of the first sieve plate. A second cleaning ring is fixedly installed on the circumferential surface of the first rotating shaft, which scrapes off the sludge attached or adhered to the inner wall of the treatment tank, preventing the sludge on the inner wall of the treatment tank from accumulating and caking, thereby affecting 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 continuously accumulate and thicken, which will not only occupy the effective space of the treatment tank, reduce the sludge treatment capacity, but also may affect the normal flow and reaction of the sludge in the tank, resulting in a decline in the treatment effect.

[0011] According to the above technical solution, the tooth blocks are meshed with the second cleaning ring. The free end of the first telescopic elastic rod is fixedly connected to the bottom of the first sieve plate. The scraping ring is fixedly connected to the bottom of the second sieve plate, which breaks up the large flocculent sludge particles formed by the reaction of the sludge with the flocculant inside the sludge, applies mechanical force to these large flocculent sludge particles, and breaks them into smaller particles.

[0012] According to the above technical solution, the scraping ring is slidably connected to the inner wall of the treatment tank. Scraping blades are arranged on the surface of the second cleaning ring. Protrusions are arranged on the circumferential surface of the shredding cylinder. At this time, the self-cleaning effect of the second sieve plate and the first sieve plate during operation to prevent blockage is realized, avoiding the blockage of the sieve plate and thus affecting the filtration and treatment efficiency of the sludge, or even causing the interruption of the entire treatment process. At the same time, it also avoids frequent manual cleaning of the sieve plate, improves work efficiency, and ensures the continuous operation of the equipment.

[0013] According to the above technical solution, a sludge discharging device for pressure filtering the treated sludge is arranged at the bottom of the first sieve plate. The sludge discharging device includes a sliding rod fixedly installed at the bottom of the first sieve plate. A pressing 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. An arc-shaped block is fixedly installed on the circumferential surface of the sleeve plate. A reciprocating lead screw two is fixedly installed on the inner wall of the treatment tank. A fixed ring is rotatably installed at the bottom of the reciprocating lead screw two. An inclined cutting block is rotatably installed on the surface of the reciprocating lead screw two. A sleeve plate is sleeved on the circumferential surface of the fixed ring. A telescopic elastic rod two is fixedly installed at the top of the sleeve plate. A telescopic knocking rod is fixedly installed at the bottom of the sleeve plate, avoiding the subsequent dehydrated sludge from blocking the sludge discharging holes and thus affecting the sludge discharging efficiency of the equipment, maintaining the stable and efficient sludge discharging efficiency of the equipment. And once the sludge discharging holes are blocked, the sludge discharging efficiency of the equipment will be greatly reduced, and even the entire treatment process may be stagnated.

[0014] According to the above technical solution, the sliding rod slidably penetrates through the surface of the third sieve plate. The sliding rod is fixedly connected with the pressing plate. The surface of the end of the C-shaped plate away from the sleeve plate is set as a first arc surface. It is necessary to manually clean the sludge discharging 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 inclined cutting block is set as a second arc surface. The free end of the telescopic elastic rod two is fixedly connected with the reciprocating lead screw two. The second sieve plate is threadedly connected with the fixed ring. The surface of the arc-shaped block is set as a third arc surface. Improving the passing property of the sludge on the surface of the second sieve plate can improve the operation efficiency of the equipment, effectively shake off the sludge accumulated on the surface of the second sieve plate, keep the sieve holes of the second sieve plate unblocked, and improve the passing property of the sludge on the surface of the second sieve plate.

[0016] The present invention provides a hazardous waste sludge treatment device. It has the following beneficial effects: (1) For this hazardous waste sludge treatment device, the sludge after preliminary dehydration is pumped into the interior of the treatment tank through a sludge conveying pipe. The water then overflows through the water outlet, and subsequently, the separated water flows out through the drain pipe, achieving the preliminary solid-liquid separation of the sludge. This not only reduces the water content of the sludge in subsequent treatment processes, lowers the treatment difficulty and cost, but also improves the treatment efficiency of the entire sludge treatment system, enabling the subsequent further treatment of the sludge to proceed more efficiently and stably. The second rotating belt rotates to drive the first reciprocating screw rod to rotate. At this time, the staff adds the flocculant into the interior of the feeding cylinder. The rotation of the first reciprocating screw rod drives the dispersing plate to rotate, stirring the flocculant, improving the uniformity and consistency of the flocculant, and avoiding uneven phenomena such as precipitation and caking of the flocculant in the feeding cylinder. This ensures that each part of the flocculant has the same concentration and activity, so that when it is mixed and reacts with the sludge subsequently, it can play the flocculation role more uniformly, improve the flocculation effect, and enable the solid particles in the sludge to aggregate together more effectively, facilitating subsequent separation and treatment.

[0017] (2) For this hazardous waste sludge treatment device, the downward movement of the dispersing plate drives the limiting plate to move downward until the discharge port opened inside the feeding cylinder is restricted. Subsequently, under the action of the first reciprocating screw rod, the limiting plate moves upward until the restriction on the discharge port is released, realizing the quantitative input of the flocculant, improving the reaction effect between the flocculant and the sludge, and avoiding the situation of over - or under - dosing the flocculant. Over - dosing will cause waste of the flocculant and increase the treatment cost, while under - dosing will lead to insufficient reaction between the flocculant and the sludge, affecting the treatment effect of the sludge. Through quantitative input, it can ensure that the flocculant and the sludge are mixed and react in a relatively stable manner, maximizing the utilization efficiency of the flocculant and the treatment effect of the sludge.

[0018] (3) For this hazardous waste sludge treatment device, the stirring rod rotates both around its own axis and in a circular motion to stir the sludge and the flocculant accumulated inside the treatment tank, further improving the reaction effect between the flocculant and the sludge. By breaking the piled - up state of the sludge with the stirring rod, the flocculant can 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, thus significantly improving the reaction effect between the flocculant and the sludge, further promoting the aggregation and sedimentation of the solid particles in the sludge, and improving the quality and efficiency of sludge treatment.

[0019] (4) For this hazardous waste sludge treatment device, the sludge after preliminary dehydration enters the interior of the treatment tank through the sludge conveying pipe. The shredding cylinder rotates to break up the large flocculent sludge particles formed by the reaction with the flocculant inside the sludge, applying mechanical force to break them into smaller particles. The second sieve plate will be blocked and move downward under the pressure of the continuously incoming sludge and water inside the treatment tank. When the second sieve plate moves downward, it drives the scraping ring to move, and the scraping ring moves to scrape off the sludge attached or adhered to the inner wall of the treatment tank, preventing the sludge from accumulating and caking on the inner wall of the treatment tank, thereby affecting 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 continuously accumulate and thicken, not only occupying the effective space of the treatment tank and reducing the sludge treatment volume, but also possibly affecting the normal flow and reaction of the sludge in the tank, resulting in a decline in the treatment effect.

[0020] (5) For this hazardous waste sludge treatment device, when the second sieve plate moves downward to contact the surface of the first cleaning ring, and the first cleaning ring rotates to scrape the sludge on the surface of the second sieve plate. At this time, the self-cleaning effect of the second sieve plate and the first sieve plate during operation is realized, preventing the sieve plate from being blocked and thus affecting the filtration and treatment efficiency of the sludge, or even causing the entire treatment process to be interrupted. At the same time, it also avoids frequent manual cleaning of the sieve plate, improves work efficiency, and ensures the continuous operation of the equipment.

[0021] (6) For this hazardous waste sludge treatment device, when the pressing plate moves downward, it drives the C-shaped plate to move. The C-shaped plate moves to contact and collide with the surface of the arc block, generating vibration. The vibrating sleeve plate transmits the vibration to the surface of the treatment tank, preventing the sludge after subsequent dehydration from blocking the sludge outlet hole and thus affecting the sludge outlet efficiency of the equipment, maintaining the stable and efficient sludge outlet efficiency of the equipment. Moreover, once the sludge outlet hole is blocked, the sludge outlet efficiency of the equipment will be greatly reduced, and even the entire treatment process may come to a standstill, requiring manual cleaning of the sludge outlet hole, which not only consumes manpower and time but also affects the production progress. The sleeve plate moves to drive the telescopic knocking rod to move downward to knock the surface of the second sieve plate, improving the passability of the sludge on the surface of the second sieve plate, improving the operation efficiency of the equipment, and effectively shaking off the sludge accumulated on the surface of the second sieve plate, keeping the sieve holes of the second sieve plate unobstructed and improving the passability of the sludge on the surface of the second sieve plate. Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall internal structure of the present invention; Figure 3 It is a schematic diagram of the positional structure of the sleeve and the hollow spiral cylinder of the present invention; Figure 4 It is a schematic diagram of the positional structure of the first rotating shaft and the stirring rod of the present invention; Figure 5 It is an enlarged schematic diagram of part A structure in body 4 of the present invention; Figure 6 Schematic diagram of the positional structure of the shredding cylinder and the stirring rod of the present invention; Figure 7 For the present invention Figure 6 Enlarged schematic diagram of part B structure in the present invention; Figure 8 Schematic diagram of the positional structure of the first sieve plate and the sliding rod of the present invention; Figure 9 Enlarged schematic diagram of part C structure in FIG. 8 of the present invention; Figure 10 Schematic diagram of the positional structure of the C-shaped plate and the arc block of the present invention.

[0023] In the figure: 1, base; 2, treatment tank; 3, first motor; 4, separator; 5, second motor; 61, feed inlet; 62, sleeve; 63, hollow spiral cylinder; 64, water outlet; 65, drain pipe; 66, sludge conveying pipe; 67, first sieve plate; 68, first rotating shaft; 69, first gear; 610, toothed ring; 611, stirring rod; 612, second gear; 613, feed cylinder; 614, first reciprocating lead screw; 615, dispersing plate; 616, limiting plate; 71, shredding cylinder; 72, second sieve plate; 73, first cleaning ring; 74, toothed block; 75, third sieve plate; 76, first telescopic spring rod; 77, scraping ring; 78, second cleaning ring; 81, sliding rod; 82, pressing plate; 83, sleeve disc; 84, C-shaped plate; 85, arc block; 86, second reciprocating lead screw; 87, fixed ring; 88, inclined cutting block; 89, sleeve plate; 810, second telescopic spring rod; 811, telescopic knocking rod. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1 - 10One embodiment of the present invention is: a hazardous waste sludge treatment device, including a base 1, a treatment tank 2 is fixedly installed on the top of the base 1, a motor 3 is fixedly installed on the top of the treatment tank 2, a separator 4 is fixedly installed on the top of the base 1, a motor 2 5 is fixedly installed on the surface of the separator 4, and a dehydration device for pre-centrifugation of sludge is provided on the surface of the separator 4. The dehydration device includes a feed inlet 61, the feed inlet 61 rotates through the surface of the separator 4, a sleeve 62 is rotatably installed on the surface of the separator 4, a hollow spiral cylinder 63 is rotatably penetrated on the surface of the separator 4, and a water outlet 64 is fixedly penetrated on the circumferential surface of the hollow spiral cylinder 63, the separator A drainage pipe 65 is fixedly passed through the surface of the machine 4, a mud conveying pipe 66 is fixedly passed through the end of the hollow spiral cylinder 63 away from the motor 2 5, a sieve plate 67 is sleeved on the inner wall of the processing tank 2, a rotating shaft 68 is fixedly installed on the output end of the motor 3, a gear 69 is fixedly installed on the circumferential surface of the rotating shaft 68, a gear ring 610 is rotatably installed on the inner wall of the processing tank 2, a stirring rod 611 is sleeved on the inner wall of the processing tank 2, and the rotation of the rotating shaft 68 drives the gear 1 69 to rotate. Because the gear 1 69 is engaged with the gear 2 612, the rotation of the gear 1 69 drives the gear 2 612 to revolve around the rotating shaft 1 68 as the center of the circle while rotating on its own. The rotation of the gear 2 612 drives the stirring rod 611 to rotate.

[0026] The circumferential surface of the stirring rod 611 is fixedly installed with a gear 2 612, the circumferential surface of the processing tank 2 is fixedly penetrated by a feed barrel 613, the top of the feed barrel 613 is rotatably penetrated by a reciprocating screw rod 1 614, the circumferential surface of the reciprocating screw rod 1 614 is slidably installed with a scattering plate 615, and the bottom of the scattering plate 615 is fixedly installed with a limit plate 616, and the scattering plate 615 moves downward to drive the limit plate 616 to move downward until the discharge port opened inside the feed barrel 613 is restricted.

[0027] The mud delivery pipe 66 is fixedly passed through the circumferential surface of the processing tank 2, the sleeve 62 is in contact with the hollow spiral cylinder 63, the feed port 61 and the motor 2 5 are connected by a transmission belt 1, the circumferential surface of the stirring rod 611 is provided with an extension rod, and a mud discharge hole is opened at the bottom of the inner wall of the processing tank 2. Then the limit plate 616 moves upward under the action of the reciprocating screw 1 614 until the restriction on the discharge port is released.

[0028] A transmission belt 2 is connected between the rotating shaft 68 and the reciprocating screw 614, and the breaking plate 615 is connected to the reciprocating screw 614 through a threaded connection. A discharge port is provided at the bottom of the inner wall of the feed barrel 613, and the limit plate 616 is fitted with the discharge port. A differential is provided between the sleeve 62 and the hollow spiral barrel 63. The sleeve 62 and the hollow spiral barrel 63 rotate at a certain speed difference to push the sludge particles deposited on the inner wall of the hollow spiral barrel 63 toward the mud conveying pipe 66. An activated carbon layer is provided inside the sieve plate 67.

[0029] During the operation of this embodiment: The sludge with a large amount of moisture is discharged through the feed port 61. The motor two 5 is started, and the output end of the motor two 5 rotates to drive the feed port 61 to rotate. At the same time, the rotation of the feed port 61 drives the sleeve 62 to rotate, and the rotation of the sleeve 62 drives the hollow spiral cylinder 63 to rotate. Since a differential is provided between the sleeve 62 and the hollow spiral cylinder 63, the rotation speeds of the sleeve 62 and the hollow spiral cylinder 63 are different. At this time, the sludge with a large amount of moisture enters the interior of the hollow spiral cylinder 63. The rotation of the hollow spiral cylinder 63 uses centrifugal force to throw the sludge particles with a larger density towards the inner wall of the hollow spiral cylinder 63, and the moisture forms an inner ring in the center. At the same time, the sleeve 62 and the hollow spiral cylinder 63 rotate with a certain speed difference to push the sludge particles deposited on the inner wall of the hollow spiral cylinder 63 towards the direction close to the sludge delivery pipe 66. Subsequently, the preliminarily dehydrated sludge is pumped into the interior of the treatment tank 2 through the sludge delivery pipe 66, and the moisture overflows through the water outlet 64. Then, the separated moisture flows out through the drain pipe 65, realizing the preliminary solid-liquid separation of the sludge. This not only can reduce the moisture content of the sludge in the subsequent treatment process, lower the treatment difficulty and cost, but also can improve the treatment efficiency of the entire sludge treatment system, making the subsequent further treatment of the sludge more efficient and stable. When the sludge enters the interior of the treatment tank 2, the motor one 3 is started. The output end of the motor one 3 rotates to drive the rotating shaft one 68 to rotate. At the same time, the rotation of the rotating shaft one 68 drives the rotating belt two to rotate, and the rotation of the rotating belt two drives the reciprocating lead screw one 614 to rotate. At this time, the staff adds the flocculant into the interior of the feed cylinder 613. The rotation of the reciprocating lead screw one 614 drives the dispersing plate 615 to rotate, stirring the flocculant to improve the consistency and uniformity of the flocculant, avoiding uneven phenomena such as precipitation and caking of the flocculant in the feed cylinder 613, and ensuring that each part of the flocculant has the same concentration and activity. Thus, when reacting with the sludge subsequently, it can play a flocculating role more evenly, improve the flocculation effect, enable the solid particles in the sludge to aggregate together more effectively, and facilitate subsequent separation and treatment. At the same time, since the reciprocating lead screw one 614 and the dispersing plate 615 are connected by threads, the downward movement of the dispersing plate 615 drives the limiting plate 616 to move downward until the discharge port opened inside the feed cylinder 613 is restricted. Subsequently, the limiting plate 616 moves upward under the action of the reciprocating lead screw one 614 until the restriction on the discharge port is released, realizing the quantitative input of the flocculant, improving the reaction effect between the flocculant and the sludge, and avoiding the situation of overfeeding or underfeeding the flocculant. Overfeeding will cause waste of the flocculant and increase the treatment cost, while underfeeding will lead to insufficient reaction between the flocculant and the sludge, affecting the treatment effect of the sludge. Through quantitative input, it can ensure that the flocculant and the sludge are mixed and reacted in a relatively stable manner, maximizing the utilization efficiency of the flocculant and the treatment effect of the sludge. The rotation of the rotating shaft one 68 drives the gear one 69 to rotate. Since the gear one 69 meshes with the gear two 612, the rotation of the gear one 69 drives the gear two 612 to revolve around the rotating shaft one 68 as the center and rotate simultaneously,The rotation of the second gear 612 drives the rotation of the stirring rod 611. While the stirring rod 611 revolves and rotates simultaneously, it stirs the sludge and the flocculant accumulated inside the treatment tank 2, further improving the reaction effect between the flocculant and the sludge. By breaking the accumulated state of the sludge with the stirring rod 611, the flocculant can come into contact with and react with the solid particles in the sludge more fully. Whether it is the sludge in the central area or the edge area of the treatment tank 2, it can be fully mixed with the flocculant under the action of the stirring rod 611, thus significantly improving the reaction effect between the flocculant and the sludge, further promoting the aggregation and sedimentation of the solid particles in the sludge, and improving the quality and efficiency of sludge treatment. Subsequently, the sludge passes through the first sieve plate 67 and flows to the bottom of the treatment tank 2. The separated water is discharged through the surface of the treatment tank 2, and the sludge is discharged through the sludge discharge holes opened at the bottom of the inner wall of the treatment tank 2.

[0030] Please refer to Figures 1 - 10 , on the basis of the above embodiment, in another embodiment of the present invention, an anti-blocking device for preventing the sieve plate from being blocked is provided on the circumferential surface of the stirring rod 611. The anti-blocking device includes a shredding cylinder 71, which is fixedly installed on the circumferential surface of the stirring rod 611. A second sieve 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 tooth block 74 is fixedly installed at the bottom of the first sieve plate 67. A third sieve plate 75 is fixedly installed on the inner wall of the treatment tank 2. A first telescopic elastic rod 76 is fixedly installed on the surface of the third sieve plate 75. A scraping ring 77 is fixedly installed on the surface of the first sieve plate 67. The downward movement of the second sieve plate 72 drives the scraping ring 77 to move, and the scraping ring 77 moves to scrape off the sludge attached or adhered 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.

[0031] The tooth block 74 meshes with the second cleaning ring 78. The free end of the first telescopic elastic rod 76 is fixedly connected to the bottom of the first sieve plate 67. The scraping ring 77 is fixedly connected to the bottom of the second sieve plate 72. The movement of the first sieve plate 67 drives the scraping ring 77 to move, and the inner wall of the treatment tank 2 is cleaned and scraped for the second time.

[0032] The scraping ring 77 is slidably connected to the inner wall of the treatment tank 2. A scraper is provided on the surface of the second cleaning ring 78. Protrusions are provided on the circumferential surface of the shredding cylinder 71. The stirring rod 611 rotates under the action of the first gear 69, driving the shredding cylinder 71 to revolve and rotate simultaneously around the first rotating shaft 68 as the center.

[0033] A sludge discharging device for pressing the treated sludge is arranged at the bottom of the first sieve plate 67. The sludge discharging device includes a sliding rod 81 which is fixedly installed at the bottom of the first sieve plate 67. A pressing 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. An arc-shaped plate 84 is fixedly installed on the circumferential surface of the sleeve plate 83. An arc-shaped block 85 is fixedly installed on the circumferential surface of the sleeve plate 83. A second reciprocating lead screw 86 is fixedly installed on the inner wall of the treatment tank 2. A fixed ring 87 is rotatably installed at the bottom of the second reciprocating lead screw 86. An inclined cutting block 88 is rotatably installed on the surface of the second reciprocating lead screw 86. A sleeve plate 89 is sleeved on the circumferential surface of the fixed ring 87. A second telescopic elastic rod 810 is fixedly installed at the top of the sleeve plate 89. A telescopic knocking rod 811 is fixedly installed at the bottom of the sleeve plate 89. The movement of the sleeve plate 89 drives the telescopic knocking rod 811 to move downward to knock on the surface of the second sieve plate 72.

[0034] The sliding rod 81 slidably penetrates through the surface of the third sieve plate 75. The sliding rod 81 is fixedly connected with the pressing plate 82. The surface of one end of the C-shaped plate 84 away from the sleeve plate 83 is set as a first arc surface. The C-shaped plate 84 moves to contact and collide with the surface of the arc-shaped block 85 to generate vibration, and the sleeve plate 83 transmits the vibration to the surface of the treatment tank 2.

[0035] The surface of the inclined cutting block 88 is set as a second arc surface. The free end of the second telescopic elastic rod 810 is fixedly connected with the second reciprocating lead screw 86. The second sieve plate 72 is threadedly connected with the fixed ring 87. The movement of the second sieve plate 72 drives the fixed ring 87 to rotate, and the rotation of the fixed ring 87 drives the inclined cutting block 88 to rotate. The surface of the arc-shaped block 85 is set as a third arc surface.

[0036] During the operation of this embodiment: When the stirring rod 611 rotates under the action of the first gear 69 to drive the shredding cylinder 71 to revolve around the rotating shaft 68 as the center and rotate simultaneously, the preliminarily dewatered sludge enters the interior of the treatment tank 2 through the sludge delivery pipe 66. The shredding cylinder 71 rotates to break up the large flocculent sludge particles formed by the reaction with the flocculant inside the sludge, applying mechanical force to these large flocculent sludge particles and breaking them into smaller particles so that they can pass through the second sieve plate 72 for filtration well. When the second sieve plate 72 is blocked by the sludge, the second sieve plate 72 will be blocked and move downward under the pressure of the continuously incoming sludge and water inside the treatment tank 2. When the second sieve plate 72 moves downward to drive the scraping ring 77 to move, the scraping ring 77 moves to scrape off the sludge attached or adhered to the inner wall of the treatment tank 2, preventing the sludge from accumulating and caking on the inner wall of the treatment tank 2, which in turn affects the operation and treatment effect of the equipment. Moreover, if the sludge on the inner wall of the treatment tank 2 is not cleaned in time, it will continuously accumulate and thicken, not only occupying the effective space of the treatment tank 2 and reducing the sludge treatment capacity, but also possibly affecting the normal flow and reaction of the sludge in the tank, resulting in a decline in the treatment effect. The downward movement of the scraping ring 77 drives the first sieve plate 67 to move, and at the same time, the movement of the first sieve plate 67 drives the tooth block 74 to move downward until it meshes with the second cleaning ring 78. At this time, the scraper on the surface of the second cleaning ring 78 contacts the bottom of the first sieve plate 67. While the second cleaning ring 78 rotates to drive the first sieve plate 67 to move, the sludge blocking the surface of the first sieve plate 67 is cleaned. At the same time, the second sieve plate 72 moves downward to contact the surface of the first cleaning ring 73, and the first cleaning ring 73 rotates to scrape the sludge on the surface of the second sieve plate 72. At this time, the self-cleaning effect of the second sieve plate 72 and the first sieve plate 67 during operation when they are blocked is achieved, avoiding the blockage of the sieve plate, which in turn affects the filtration and treatment efficiency of the sludge, and even causing the interruption of the entire treatment process. At the same time, it also avoids frequent manual cleaning of the sieve plate, improves work efficiency, and ensures the continuous operation of the equipment. When the surfaces of the second sieve plate 72 and the first sieve plate 67 are unblocked, the deformation of the first telescopic spring rod 76 is restored to drive the first sieve plate 67 to move upward and reset. At the same time, the movement of the first sieve plate 67 drives the scraping ring 77 to move to perform secondary cleaning and scraping of the inner wall of the treatment tank 2. The upward movement of the scraping ring 77 drives the second sieve plate 72 to reset.

[0037] When the first sieve plate 67 moves downward under the action of the scraping ring 77, it drives the sliding rod 81 to move. The movement of the sliding rod 81 drives the pressing plate 82 to move downward to press-filter the sludge. Subsequently, under the action of the pressing plate 82, the sludge is extruded into a long strip through the sludge outlet hole. At the same time, the downward movement of the pressing plate 82 drives the C-shaped plate 84 to move. The movement of the C-shaped plate 84 contacts and collides with the surface of the arc-shaped block 85 to generate vibration. The vibration of the sleeve plate 83 transmits the vibration to the surface of the treatment tank 2, preventing the dehydrated sludge from blocking the sludge outlet hole and thus affecting the sludge discharge efficiency of the equipment, maintaining the stable and efficient sludge discharge efficiency of the equipment. And once the sludge outlet hole is blocked, the sludge discharge efficiency of the equipment will be greatly reduced, and even may cause the entire treatment process to stagnate, requiring manual cleaning of the sludge outlet hole, which not only consumes manpower and time, but also affects the production progress. At the same time, the downward movement of the first sieve plate 67 drives the scraping ring 77 to move. At the same time, the movement of the scraping ring 77 drives the second sieve plate 72 to move downward. Since the second sieve plate 72 is threadedly connected to the fixed ring 87, the movement of the second sieve plate 72 drives the fixed ring 87 to rotate. The rotation of the fixed ring 87 drives the inclined cutting block 88 to rotate. The rotation of the inclined cutting block 88 contacts and squeezes the sleeve plate 89 to move downward. The movement of the sleeve plate 89 drives the telescopic knocking rod 811 to move downward to knock on the surface of the second sieve plate 72, improving the passing performance of the sludge on the surface of the second sieve plate 72, improving the operating efficiency of the equipment, effectively shaking off the sludge accumulated on the surface of the second sieve plate 72, keeping the sieve holes of the second sieve plate 72 unblocked, and improving the passing performance of the sludge on the surface of the second sieve plate 72.

[0038] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention 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 first 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 second motor (5) is fixedly installed on the surface of the separator (4). A dehydration device for centrifugally removing moisture from sludge in advance is arranged on the surface of the separator (4). The dehydration device includes a feed inlet (61), and the feed inlet (61) rotatably penetrates through the surface of the separator (4). A sleeve (62) is rotatably installed on the surface of the separator (4). A hollow spiral cylinder (63) rotatably penetrates through the surface of the separator (4). A water outlet (64) is fixedly penetrated through the circumferential surface of the hollow spiral cylinder (63). A drain pipe (65) is fixedly penetrated through the surface of the separator (4). A sludge conveying pipe (66) is fixedly penetrated through one end of the hollow spiral cylinder (63) far away from the second motor (5). A first sieve plate (67) is sleeved on the inner wall of the processing tank (2). The output end of the first motor (3) is fixedly installed with a first rotating shaft (68). A first gear (69) is fixedly installed on the circumferential surface of the first rotating shaft (68). A toothed ring (610) is rotatably installed on the inner wall of the processing tank (2). A stirring rod (611) is sleeved on the inner wall of the processing tank (2).

2. The hazardous waste sludge treatment device according to claim 1, characterized in that: A second gear (612) is fixedly installed on the circumferential surface of the stirring rod (611). A feed cylinder (613) is fixedly penetrated through the circumferential surface of the processing tank (2). A first reciprocating lead screw (614) rotatably penetrates through the top of the feed cylinder (613). A dispersing plate (615) is slidably installed on the circumferential surface of the first reciprocating lead screw (614). A limiting plate (616) is fixedly installed at the bottom of the dispersing plate (615).

3. The hazardous waste sludge treatment device according to claim 2, wherein: The sludge conveying pipe (66) fixedly penetrates through the circumferential surface of the processing tank (2). The sleeve (62) is in contact with the hollow spiral cylinder (63). A first transmission belt is connected between the feed inlet (61) and the second motor (5). An extension rod is arranged on the circumferential surface of the stirring rod (611). A sludge outlet is opened at the bottom of the inner wall of the processing tank (2).

4. A hazardous waste sludge treatment device according to claim 3, characterized in that: A second transmission belt is connected between the first rotating shaft (68) and the first reciprocating lead screw (614). The dispersing plate (615) is threadedly connected with the first reciprocating lead screw (614). A discharge port is opened at the bottom of the inner wall of the feed cylinder (613). The limiting plate (616) is attached to the discharge port. A differential is arranged between the sleeve (62) and the hollow spiral cylinder (63). An activated carbon layer is arranged inside the first sieve plate (67).

5. The hazardous waste sludge treatment device according to claim 4, wherein: A clogging prevention device for preventing the clogging of the sieve plate is provided on the circumferential surface of the stirring rod (611). The clogging prevention device includes a shredding cylinder (71) fixedly installed on the circumferential surface of the stirring rod (611). A second sieve 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 sieve plate (67). A third sieve plate (75) is fixedly installed on the inner wall of the treatment tank (2). A first telescopic elastic rod (76) is fixedly installed on the surface of the third sieve plate (75). A scraping ring (77) is fixedly installed on the surface of the first sieve plate (67). A second cleaning ring (78) is fixedly installed on the circumferential surface of the first rotating shaft (68).

6. The hazardous waste sludge treatment device according to claim 5, wherein: The toothed block (74) meshes with the second cleaning ring (78). The free end of the first telescopic elastic rod (76) is fixedly connected to the bottom of the first sieve plate (67). The scraping ring (77) is fixedly connected to the bottom of the second sieve plate (72).

7. The hazardous waste sludge treatment device according to claim 6, characterized in that: The scraping ring (77) is slidably connected to the inner wall of the treatment tank (2). A scraper is provided on the surface of the second cleaning ring (78). Protrusions are provided on the circumferential surface of the shredding cylinder (71).

8. The hazardous waste sludge treatment device according to claim 7, characterized in that: A sludge discharging device for pressing and filtering the treated sludge is provided at the bottom of the first sieve plate (67). The sludge discharging device includes a sliding rod (81) fixedly installed at the bottom of the first sieve plate (67). A pressing 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-shaped block (85) is fixedly installed on the circumferential surface of the sleeve plate (83). A second reciprocating lead screw (86) is fixedly installed on the inner wall of the treatment tank (2). A fixed ring (87) is rotatably installed at the bottom of the second reciprocating lead screw (86). An inclined cutting block (88) is rotatably installed on the surface of the second reciprocating lead screw (86). A sleeve plate (89) is sleeved on the circumferential surface of the fixed ring (87). A second telescopic elastic rod (810) is fixedly installed at the top of the sleeve plate (89). A telescopic knocking rod (811) is fixedly installed at the bottom of the sleeve plate (89).

9. A hazardous waste sludge treatment device according to claim 8, characterized in that: The sliding rod (81) slidably penetrates the surface of the third sieve plate (75). The sliding rod (81) is fixedly connected to the pressing plate (82). The surface of the end of the C-shaped plate (84) away from the sleeve plate (83) is an arc surface one.

10. A hazardous waste sludge treatment device according to claim 9, characterized in that: The surface of the inclined cutting block (88) is an arc surface two. The free end of the second telescopic elastic rod (810) is fixedly connected to the second reciprocating lead screw (86). The second sieve plate (72) is threadedly connected to the fixed ring (87). The surface of the arc-shaped block (85) is an arc surface three.

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