Poisonous sludge purification treatment device and method

Abstract

The invention provides a toxic sludge purification treatment device and method, and belongs to the technical field of sludge treatment.The device comprises a sludge scraping device and a sterilization and purification device, the sedimentation tank is arranged on the lower side of the overbridge plate; the sludge discharge bottom hopper is fixed at the bottom of the sedimentation tank; the sludge discharge pipe is used for fixing the bottom of the sludge discharge bottom hopper and is communicated with the sludge discharge bottom hopper; the sludge scraping mechanism is arranged in the sedimentation tank so as to discharge settled sludge; the filter box is fixed at the bottom of the overpass plate, and the bottom of the filter box is inclined; the sludge inlet hole is formed in the top of the overbridge plate and is communicated with the filter box; according to the invention, through the arrangement of the filter box, when a water pump pumps sludge into the sedimentation tank, impurities with larger volume can be blocked by the filter box and slide to the filter plate, and meanwhile, the sludge and water enter the sedimentation tank, so that the larger impurities cannot enter the sedimentation tank, and a sludge discharge pipe at the bottom of the sedimentation tank is not easy to block; the sludge can be better cleaned.

Description

Technical Field

[0001] The invention belongs to the technical field of sludge treatment, and in particular relates to a toxic sludge purification treatment device and a method thereof. Background Art

[0002] A sludge scraper is a machine that removes sludge from the river. It is used in urban sewage treatment plants, water plants, and large-diameter circular sedimentation tanks for industrial wastewater treatment to remove sludge settled at the bottom of the tank and remove scum on the surface of the tank. Sludge scrapers mainly include peripheral transmission scrapers and central transmission thickening scrapers. The central transmission thickening scraper is mainly composed of an overflow device, a beam and railings, an inlet pipe, a transmission device, an electrical box, a flow stabilizer, a main shaft, a scum rake, a scraping device, an underwater bearing, a small scraper, a slag bucket, a scum rake, etc. The central transmission thickening scraper can further separate the free water in the sludge in the thickening tank to reduce the volume of the sludge, increase the sludge concentration, and remove the concentrated sludge from the tank.

[0003] When the existing scraper is in use, a water pump is usually used to directly pump the sludge into the sedimentation tank. During the extraction process, water is pumped into the sedimentation tank together with the sludge. After the sludge is settled, it is scraped to the discharge port for discharge. However, the existing scraper does not have a sludge filtering structure. This means that when the water pump pumps the sludge into the sedimentation tank, larger debris in the sludge will also be discharged into the sedimentation tank along with the sludge, which can easily lead to congestion at the bottom of the sedimentation tank and make it impossible to discharge the sludge better. Summary of the invention

[0004] The purpose of the present invention is to provide a toxic sludge purification treatment device and method, aiming to solve the problem that the scraper in the prior art does not have a sludge filtering structure, which means that when the water pump pumps the sludge into the sedimentation tank, larger debris in the sludge will also be discharged into the sedimentation tank along with the sludge, which can easily lead to congestion at the bottom of the sedimentation tank and the inability to discharge the sludge better.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A toxic sludge purification device comprises a sludge scraping device and a sterilization purification device, wherein the sludge scraping device comprises:

[0007] Overpass board;

[0008] A sedimentation tank is arranged on the lower side of the overpass plate;

[0009] A mud discharge bottom bucket fixed at the bottom of the sedimentation tank;

[0010] A mud discharge pipe, fixed to the bottom of the mud discharge bottom bucket and connected to the mud discharge bottom bucket;

[0011] A sludge scraping mechanism is arranged in the sedimentation tank to discharge the precipitated sludge;

[0012] A filter box is fixed to the bottom of the overpass board, and the bottom of the filter box is inclined;

[0013] A mud inlet hole is provided on the top of the overpass plate and is connected to the filter box;

[0014] A plurality of first filter holes are provided, all of which are opened at the bottom of the filter box;

[0015] An intermittent vibration mechanism is connected to the filter box to achieve intermittent knocking of the bottom of the filter box;

[0016] A filter plate is arranged at the lower side of the low edge end of the filter box;

[0017] A plurality of second filter holes are provided, all of which are opened at the bottom of the filter plate;

[0018] A reciprocating mechanism connected to the filter plate to achieve reciprocating motion;

[0019] A conveying mechanism is arranged on one side of the filter plate to realize the conveying of debris to the outside of the sedimentation tank;

[0020] A driving mechanism is arranged on the sedimentation tank to realize the operation of the driving device;

[0021] The sterilization and purification device comprises:

[0022] A purification liquid storage tank is fixed on the top of the overpass board;

[0023] Two liquid inlet hoppers are provided, symmetrically fixed on both sides of the top of the purified liquid storage box and connected to the interior of the purified liquid storage box;

[0024] A down pipe is provided at the bottom of the purified liquid storage tank, and the down pipe penetrates to the bottom of the overpass board and extends downward;

[0025] A sealing mechanism is provided at the top of the purified liquid storage box to seal the two liquid inlet hoppers.

[0026] As a preferred solution of the present invention, the intermittent vibration mechanism includes:

[0027] Two second fixing plates are provided and are both fixed to the bottom of the overpass plate;

[0028] Two first fixing plates are provided, and the two first fixing plates are fixed between the adjacent ends of the two second fixing plates;

[0029] A second rotating shaft, rotatably connected between the adjacent ends of the two second fixing plates;

[0030] A lever plate, fixed to the circumferential surface of the second rotating shaft;

[0031] A rubber block is fixed to a surface of one end of the lever plate close to the filter box, and the rubber block abuts against the bottom of the filter box intermittently;

[0032] A first rotating shaft, rotatably connected to the adjacent ends of the two first fixing plates;

[0033] A hollow column fixed to the circumferential surface of the first rotating shaft;

[0034] The arc block is fixed on the circumferential surface of the hollow column and intermittently abuts against the top of one side of the lever plate.

[0035] As a preferred solution of the present invention, a blocking rod is fixed between the adjacent ends of the two second fixing plates, and the blocking rod is located on the upper side of the end of the lever plate away from the filter box.

[0036] As a preferred solution of the present invention, the reciprocating circulation mechanism comprises:

[0037] A fourth fixing plate, fixed to the bottom of the overpass plate;

[0038] A rotating disk, rotatably connected to one side end of the fourth fixing plate;

[0039] A sliding plate, slidably connected to one side end of the fourth fixing plate;

[0040] A connecting rod, one end of which is rotatably connected to the edge of the rotating disk, and the other end of which is rotatably connected to the end of the sliding plate;

[0041] A rack fixed to one side end of the slide plate;

[0042] A hollow seat is fixed to the bottom of the filter box, and the bottom of the hollow seat is open;

[0043] A screw rod is rotatably connected between the inner walls of both sides of the hollow seat, and one end of the screw rod movably penetrates one side end of the hollow seat and extends outward;

[0044] A nut block, threadedly connected to the circumferential surface of the screw rod;

[0045] a gear, fixed to the extended end surface of the screw rod and meshing with the rack;

[0046] A slide groove is provided at one side end of the hollow seat;

[0047] A connecting slide block is slidably connected in the slide groove, and one end of the connecting slide block is fixed to the end of the nut block, and the other end is fixed to the filter plate.

[0048] As a preferred solution of the present invention, a T-shaped groove is provided at the bottom of the fourth fixing plate, a T-shaped block is slidably connected in the T-shaped groove, and the T-shaped block is fixed between the ends of the sliding plate that are close to each other.

[0049] As a preferred solution of the present invention, the transmission mechanism includes:

[0050] Two fifth fixing plates are provided and are fixed to two sides of the bottom of the overpass plate respectively;

[0051] Sixth fixing plates, two of which are respectively fixed to two sides of the bottom of the overpass plate;

[0052] There are two transmission rollers, which are rotatably connected between the two fifth fixing plates and the two sixth fixing plates, respectively, and one end of one of the transmission rollers movably penetrates one side end of the fifth fixing plate and extends outward;

[0053] A transmission belt is transmission-connected between the circumferential surfaces of the two transmission rollers, and one side of the transmission belt is located at the bottom of the filter plate.

[0054] As a preferred solution of the present invention, the stirring mechanism comprises:

[0055] A rotating rod, one end of which is rotatably connected to the bottom of the overpass board, and the end of the rotating rod movably passes through the top of the overpass board and extends upward, and the other end is rotatably connected to the bottom of the mud discharge bottom bucket;

[0056] Two cross bars are provided and are both fixed to the circumferential surface of the rotating rod;

[0057] A plurality of scrapers are provided, which are respectively fixed to the bottoms of the two cross bars and matched with the bottom wall of the sedimentation tank;

[0058] Two cleaning plates are provided, both of which are fixed to the circumferential surface of the rotating rod and are located in the mud discharge bottom bucket.

[0059] As a preferred solution of the present invention, the driving mechanism includes:

[0060] A driving protection box is fixed on the top of the overpass board;

[0061] A motor is fixed to the top wall of the driving protection box, and the output end of the motor movably penetrates the bottom of the overpass board and extends downward;

[0062] A driving pinion, fixed to the output end of the motor;

[0063] A driven large gear, fixed to the surface of the extended end of the rotating rod and meshing with the driving small gear;

[0064] Two third fixing plates are provided and are both fixed to the bottom of the overpass plate;

[0065] A third rotating shaft, rotatably connected to the two third fixing plates;

[0066] A second bevel gear is fixed on the output end surface of the motor;

[0067] A first bevel gear, fixed on the circumferential surface of the third rotating shaft and obliquely meshing with the second bevel gear;

[0068] The transmission component is connected with the intermittent vibration mechanism, the reciprocating cycle mechanism and the transmission mechanism to realize the operation of the three.

[0069] As a preferred solution of the present invention, the transmission component includes:

[0070] A fourth rotating shaft is rotatably connected to the two first fixing plates, and two ends of the fourth rotating shaft respectively movably penetrate the fourth fixing plate and an end of one of the first fixing plates and extend outwards;

[0071] The rotating disk is fixed to the extended end surface of the fourth rotating shaft;

[0072] a third bevel gear fixed on the circumferential surface of the third rotating shaft;

[0073] A fourth bevel gear is fixed on the other side of the extended end surface of the fourth rotating shaft, and the fourth bevel gear is obliquely meshed with the third bevel gear;

[0074] Two first spools are provided and are respectively fixed on the circumferential surfaces of the first rotating shaft and the fourth rotating shaft;

[0075] A first belt, drivingly connected between the circumferential surfaces of the two first spools;

[0076] Two second I-shaped wheels are provided and are respectively fixed on the circumferential surfaces of the third rotating shaft and the transmission roller;

[0077] The second belt is drivingly connected between the circumferential surfaces of the two second I-shaped wheels.

[0078] A method for purifying toxic sludge comprises the following steps:

[0079] S1. First, connect the water pump discharge pipe to the mud inlet hole so that the water pump draws the sludge into the filter box. The sludge slides along the bottom of the filter box, so that the sludge and water are filtered out from the first filter hole and enter the sedimentation tank. Large debris slides along the bottom wall of the filter box and falls on the top of the filter plate.

[0080] S2. At this time, the motor is started, and the output end of the motor drives the second bevel gear to rotate. The second bevel gear drives the third shaft to rotate through the oblique meshing with the first bevel gear. The third shaft drives the third bevel gear and one of the second I-shaped wheels to rotate. The oblique meshing of the third bevel gear and the fourth bevel gear makes the fourth shaft rotate. The fourth shaft drives one of the first I-shaped wheels to rotate. The transmission of the first belt makes the other first I-shaped wheel drive the first shaft to rotate. The first shaft drives the arc block on its surface to rotate through the hollow column, so that the arc block intermittently abuts against one end of the lever plate. Since the lever plate is fixed to the surface of the second shaft, the second shaft can rotate, so that when one end of the lever plate is intermittently abutted, the lever plate performs a lever movement, and the other end drives the rubber block to intermittently knock the bottom of the filter box, so that the filter box vibrates, so that the sludge, water and large debris flowing on the bottom wall of the filter box can slide or filter down better, and are not easy to remain on the bottom wall of the filter box.

[0081] S3. At the same time, the fourth rotating shaft can drive the turntable to rotate when it rotates. Since one end of the connecting rod is fixed at the edge of the turntable, when the turntable rotates, it drives one end of the connecting rod to make an eccentric movement, so that one end of the connecting rod drives the slide plate to move. The slide plate is slidably connected to the T-shaped groove through the T-shaped block, so that the position of the slide plate is limited, so the slide plate makes an up and down linear motion, and the slide plate drives the rack to make a linear reciprocating motion. The rack drives the lead screw to make a forward and reverse reciprocating motion through the gear meshing therewith. Since the nut block matches the inside of the hollow seat, when the lead screw is forward and reversed, it drives the nut block to make a reciprocating linear motion. The nut block drives the filter plate to shake back and forth horizontally through the connecting slider, so that large debris falling on the surface of the filter plate can slide onto the conveyor belt better. At the same time, the filter holes on the filter plate can also filter out the sludge and water sliding down from the bottom wall of the filter box;

[0082] S4. At the same time, when one of the second I-shaped wheels rotates, the second belt drives the other second I-shaped wheel to rotate, so that one of the transmission rollers rotates. Since the transmission belt is transmitted between the surfaces of the two transmission rollers, the other transmission roller also rotates. At the same time, the transmission belt can drive the large debris that falls on the top to the outside of the sedimentation tank, where it can be collected and will not fall into the sedimentation tank, thus avoiding clogging of the mud discharge pipe;

[0083] S5. The output end of the motor can also drive the driving pinion to rotate, and the driving pinion drives the driven large gear. Due to the different transmission ratios of the driving pinion and the driven large gear, the speed of the driven large gear is reduced, driving the rotating rod to rotate slowly. The rotating rod drives the scraper to scrape the sludge at the bottom of the sedimentation tank through the cross bar, so that the sludge falls into the mud discharge bottom bucket for easy discharge; at the same time, after the water pump completes pumping the sludge, the motor can be stopped, and after sedimentation in the sedimentation tank, the motor can be started again, so that multiple scrapers can better scrape the bottom wall of the sedimentation tank to achieve better sludge cleaning.

[0084] Compared with the prior art, the present invention has the following beneficial effects:

[0085] 1. In this scheme, through the filter box provided, when the water pump draws the sludge into the sedimentation tank, the larger volume of debris can be blocked by the filter box and slide from its surface to the filter plate. At the same time, the sludge and water enter the sedimentation tank, and larger debris will not enter the sedimentation tank, so that the sludge discharge pipe at the bottom of the sedimentation tank is not easily blocked, and the sludge can be cleaned better.

[0086] 2. In this solution, the intermittent vibration mechanism can intermittently abut against the bottom of the filter box, causing the filter box to produce a vibration effect, so that the sludge, water and debris that fall onto the bottom wall of the filter box are not easy to stay on the bottom wall of the filter box, and can be better filtered or slide, and are not easy to produce residue.

[0087] 3. In this scheme, the filter plate is provided so that the larger debris that falls out can slide slowly onto the conveying mechanism and is not easily spilled outward due to excessive impact force. At the same time, the reciprocating circulation mechanism can make the filter plate swing back and forth so that the large debris on its surface can smoothly fall into the conveying mechanism, and the sludge and water that slide from the filter box to the filter plate can be filtered for the second time and filtered out from the second filter hole, so that it is not easily spilled out of the sedimentation tank.

[0088] 4. In this solution, the conveyor belt in the conveying mechanism extends out of the sedimentation tank at a small angle, so that large debris falling on the surface of the conveyor belt can be transported out of the sedimentation tank, while the water on the surface of the conveyor belt can flow along the surface of the conveyor belt into the sedimentation tank.

[0089] 5. In this solution, the driving mechanism is provided to drive multiple mechanisms of the device to move, thus realizing a single drive without the need for multiple drives, reducing the presence of driving devices, saving not only power consumption but also reducing resource utilization, and having broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0090] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0091] Figure 1 It is a first-view stereogram in the present invention;

[0092] Figure 2 It is a second viewing angle stereogram in the present invention;

[0093] Figure 3 It is a partial stereoscopic diagram of the sedimentation tank in the present invention;

[0094] Figure 4 It is a partial bottom-up stereogram in the present invention;

[0095] Figure 5 It is a partial top view stereogram of the present invention;

[0096] Figure 6 It is a partial stereoscopic diagram of the transmission mechanism in the present invention;

[0097] Figure 7 It is a partial stereogram of the intermittent vibration mechanism in the present invention;

[0098] Figure 8 It is a partial cutaway stereogram of the present invention;

[0099] Fig. 9 It is a partial stereogram of the reciprocating cycle mechanism in the present invention;

[0100] Fig.10 It is a third perspective stereogram in the present invention;

[0101] Fig.11 It is a partial three-dimensional view of the sterilization and purification device in the present invention;

[0102] Fig.12 It is a partial exploded view of the sealing mechanism in the present invention.

[0103] In the figure: 1. Overpass board; 101. Guardrail; 102. Stairs; 103. Mud inlet hole; 2. Sedimentation tank; 201. Overflow hole; 202. Mud discharge bottom bucket; 203. Mud discharge pipe; 2031. Valve; 3. Motor; 301. Driving small gear; 302. Driven large gear; 303. Driving protection box; 4. Rotating rod; 401. Crossbar; 402. Scraper; 403. Cleaning plate; 5. Filter box; 501, first filter hole; 6, first fixed plate; 7, first rotating shaft; 8, hollow column; 9, arc block; 10, first I-shaped wheel; 11, first belt; 12, stop rod; 13, second rotating shaft; 14, lever plate; 15, rubber block; 16, second fixed plate; 17, third fixed plate; 18, third rotating shaft; 19, first bevel gear; 20, second bevel gear; 21, hollow seat; 22, slide groove; 23, screw rod; 24, nut block; 25, connecting slider; 26, filter plate; 27, second filter hole; 28, fourth fixed plate; 29, turntable; 30, connecting rod; 31, T-slot; 32, T-block; 33, slide plate; 34, rack; 35, gear; 36, fourth rotating shaft; 37, second I-shaped wheel; 38, second belt; 39, fifth fixed plate; 40, transmission roller; 41, transmission Belt; 42, sixth fixed plate; 43, third bevel gear; 44, fourth bevel gear; 45, support bar; 46, purified liquid storage box; 461, liquid inlet bucket; 462, cover plate; 463, horizontal handle; 464, slide bar; 465, sleeve; 466, movable hole; 467, limit groove; 468, spring; 469, limit bar; 470, liquid level meter; 471, lower liquid pipe; 472, electric control valve. DETAILED DESCRIPTION

[0104] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0105] Example 1

[0106] See also Figure 1-Figure 12 , the present invention provides the following technical solutions:

[0107] A toxic sludge purification device comprises a sludge scraping device and a sterilization purification device, wherein the sludge scraping device comprises:

[0108] Overpass board 1;

[0109] A sedimentation tank 2 is provided on the lower side of the overpass slab 1;

[0110] The mud discharge bottom bucket 202 is fixed at the bottom of the sedimentation tank 2;

[0111] A mud discharge pipe 203 is fixed to the bottom of the mud discharge bottom bucket 202 and communicated with the mud discharge bottom bucket 202;

[0112] The sludge scraping mechanism is arranged in the sedimentation tank 2 to discharge the precipitated sludge;

[0113] The filter box 5 is fixed to the bottom of the overpass board 1, and the bottom of the filter box 5 is inclined;

[0114] The mud inlet hole 103 is provided on the top of the overpass board 1 and communicated with the filter box 5;

[0115] A plurality of first filter holes 501 are provided, all of which are opened at the bottom of the filter box 5;

[0116] An intermittent vibration mechanism is connected to the filter box 5 to achieve intermittent knocking of the bottom of the filter box 5;

[0117] The filter plate 26 is arranged at the lower side of the low edge end of the filter box 5;

[0118] A plurality of second filter holes 27 are provided, all of which are opened at the bottom of the filter plate 26;

[0119] A reciprocating mechanism connected to the filter plate 26 to achieve reciprocating motion;

[0120] The conveying mechanism is arranged on one side of the filter plate 26 to realize the conveying of the debris to the outside of the sedimentation tank 2;

[0121] A driving mechanism is arranged on the sedimentation tank 2 to realize the operation of the driving device;

[0122] The sterilization and purification device includes:

[0123] A purified liquid storage tank 46 is fixed to the top of the overpass slab 1;

[0124] Two liquid inlet hoppers 461 are provided, symmetrically fixed on both sides of the top of the purified liquid storage box 46, and communicated with the interior of the purified liquid storage box 46;

[0125] A down pipe 471 is provided at the bottom of the purified liquid storage tank 46, and the down pipe 471 penetrates to the bottom of the overpass board 1 and extends downward;

[0126] The sealing mechanism is arranged on the top of the purified liquid storage box 46 to seal the two liquid inlet hoppers 461 .

[0127] In a specific embodiment of the present invention, when the device is used, the overpass board 1 is used for people to walk, and guardrails 101 are fixed on both sides of the top of the overpass board 1 to protect the people walking. Ladders 102 are fixed on both sides of the left and right sides of the overpass board 1, and the ladders 102 are used to support the overpass board 1. The top of the mud discharge bottom bucket 202 is open and is supported on the bottom of the sedimentation tank 2. A plurality of evenly distributed overflow holes 201 are provided on the surface of the sedimentation tank 2. When there is a lot of water, it overflows from the overflow holes 201. The bottom wall of the sedimentation tank 2 is inclined. The mud discharge pipe 203 is connected to the mud discharge bottom bucket 202 for discharging sludge. A valve 2031 is also provided on the mud discharge pipe 203 for controlling the flowability of the mud discharge pipe 203. The mud scraping mechanism is provided in the sedimentation tank 2 for scraping the sludge in the sedimentation tank 2 into the mud discharge bottom bucket 202 and finally discharged through the mud discharge pipe 203. The sludge in the sedimentation tank 2 is extracted from the river channel by a water pump, and water and larger debris are also extracted at the same time and discharged into the filter box 5 from the mud inlet hole 103. The first filter hole 501 can pass water. After being filtered through the first filter hole 501, the larger debris slides along the inclined bottom wall of the filter box 5 to the filter plate 26. The intermittent vibration mechanism can intermittently abut against the bottom of the filter box 5, so that the filter box 5 produces a vibration effect, so that the sludge, water and debris falling on the bottom wall of the filter box 5 are not easy to stay on the bottom wall of the filter box 5, and can be better filtered or slide, and are not easy to produce residue. The filter plate 26 is tilted downward at a small angle to buffer the larger debris that slides down, and the reciprocating circulation mechanism can The filter plate 26 is caused to rock slightly back and forth, so that larger debris on the top of the filter plate 26 can slide along the surface of the filter plate 26 to the conveying mechanism. Baffles are provided on both sides of the filter plate 26, so that larger debris is not easy to slide out from both sides, and can be better conveyed to the outside of the sedimentation tank 2 by the conveying mechanism, and is not easy to cause blockage to the mud discharge pipe 203. Moreover, the sludge and water that slide from the filter box 5 to the filter plate 26 can be filtered for a second time and filtered out from the second filter hole 27, and are not easy to spill outside the sedimentation tank 2.

[0128] Specifically, in the sterilization and purification device, the purification liquid storage tank 46 is used to carry liquid for sterilization and purification of sludge, such as chlorine (Cl) solution or hydrogen peroxide (HO) solution. Chlorine dissolved in water will undergo a chemical reaction to generate hypochlorous acid (HClO) and hydrochloric acid (HCl). Hypochlorous acid has strong oxidizing properties and can destroy the cell structure of bacteria and microorganisms, thereby achieving the purpose of sterilization. In sludge treatment, the amount of chlorine added needs to be determined based on factors such as the properties of the sludge and the content of microorganisms. The amount of effective chlorine added may be between tens of milligrams per liter and hundreds of milligrams per liter.

[0129] Hydrogen peroxide (HO) solution. Hydrogen peroxide has strong oxidizing properties. It can decompose to produce hydroxyl radicals (θH). These free radicals can attack the cell membranes, proteins, nucleic acids and other biological macromolecules of microorganisms, leading to the death of microorganisms. The concentration of hydrogen peroxide can be selected according to the pollution degree of sludge and the treatment requirements, and is generally around 3%-30%;

[0130] Among them, liquid can be injected into the purified liquid storage tank 46 through two liquid inlet buckets 461, and different liquids can also be injected and mixed. The setting of the two liquid inlet buckets 461 can add liquid more effectively and quickly. A liquid level gauge 470 is also provided on the purified liquid storage tank 46. The bottom of the liquid level gauge 470 is embedded in the inner wall of the purified liquid storage tank 46, so that the liquid added to the purified liquid storage tank 46 can be measured, and the measurement of the liquid added to the sedimentation tank 2 can also be paid attention to in real time. It flows into the sedimentation tank 2 through the liquid down pipe 471. The liquid down pipe 471 is provided with an electric control valve 472, which is connected to the external control end to realize remote control of the switch of the liquid down pipe 471 and realize the function of automatic liquid down, so that the sterilization and purification liquid can effectively purify the sludge after entering the sedimentation tank 2. After the injection is completed, the two liquid inlet buckets 461 can be sealed by a sealing mechanism to prevent the liquid from volatilizing or being accidentally touched.

[0131] Specifically, the sealing mechanism includes a horizontal handle 463, a slide bar 464, a slide sleeve 465, a movable hole 466, a limit groove 467, a spring 468, a limit strip 469 and two cover plates 462. The slide sleeve 465 is fixed to the top of the purification liquid storage box 46. The movable hole 466 is opened on the top of the slide sleeve 465. One end of the spring 468 is fixed to the bottom wall of the slide sleeve 465, and the other end is fixed to the slide bar 464. The slide bar 464 is slidably connected in the movable hole 466. The slide bar 464 consists of two sections. The upper section can rotate, the horizontal handle 463 is fixed to the upper section of the slide bar 464, the two cover plates 462 are respectively fixed to the two ends of the horizontal handle 463, and match the liquid inlet bucket 461, there are two limit grooves 467, which are symmetrically opened on the inner walls of the two sides of the sliding sleeve 465, and there are two limit bars 469, which are symmetrically fixed on both sides of the circumferential surface of the slide bar 464, and the two limit bars 469 are respectively slidably connected to the two limit grooves 467, which play a limiting role, so that the slide bar 464 can move in the activity. The sliding movement in the hole 466 is linear and cannot be separated from the sliding sleeve 465. The horizontal handle 463 can be rotated based on the upper part of the sliding rod 464. When it is necessary to open the liquid inlet hopper 461, the horizontal handle 463 is lifted upward, and the horizontal handle 463 drives the two cover plates 462 to move upward and separate from the liquid inlet hopper 461. At the same time, the sliding rod 464 is driven to slide upward in the movable hole 466 and stretch the spring 468. Then the horizontal handle 463 is rotated to make the liquid inlet hopper 461 and the cover plate 462 misaligned, and the horizontal handle 464 is released. The horizontal handle 463 is reset by the elasticity of the spring 468, and the liquid inlet hopper 461 is opened at this time. When the liquid injection is completed and the liquid inlet hopper 461 needs to be closed, the horizontal handle 463 is pulled upward again and selected so that the cover plate 462 is aligned with the liquid inlet hopper 461, and the horizontal handle 463 is released. The cover plate 462 is reset and embedded in the liquid inlet hopper 461 by the elasticity of the spring 468 to achieve sealing of the liquid inlet hopper 461. Preferably, the circumferential surface of the cover plate 462 is wrapped with a rubber sleeve to achieve a better sealing effect.

[0132] Specifically, the intermittent vibration mechanism includes:

[0133] The second fixing plates 16, two of which are fixed to the bottom of the overpass board 1;

[0134] Two first fixing plates 6 are provided, and the two first fixing plates 6 are fixed between the adjacent ends of the two second fixing plates 16;

[0135] The second rotating shaft 13 is rotatably connected between the adjacent ends of the two second fixing plates 16;

[0136] A lever plate 14, fixed to the circumferential surface of the second rotating shaft 13;

[0137] The rubber block 15 is fixed to the surface of one end of the lever plate 14 close to the filter box 5, and the rubber block 15 abuts against the bottom of the filter box 5 intermittently;

[0138] A first rotating shaft 7, rotatably connected to the adjacent ends of the two first fixing plates 6;

[0139] A hollow column 8, fixed to the circumferential surface of the first rotating shaft 7;

[0140] The arc block 9 is fixed to the circumferential surface of the hollow column 8 and intermittently abuts against the top of one side of the lever plate 14.

[0141] In this embodiment: by rotating the first rotating shaft 7, the first rotating shaft 7 drives the arc block 9 on its surface to rotate through the hollow column 8, so that the arc block 9 intermittently abuts against one end of the lever plate 14. Since the lever plate 14 is fixed to the surface of the second rotating shaft 13, the second rotating shaft 13 can rotate, so that when one end of the lever plate 14 is intermittently abutted, the lever plate 14 performs a lever movement, and the other end drives the rubber block 15 to intermittently hit the bottom of the filter box 5, causing the filter box 5 to vibrate, so that the sludge, water and large debris flowing on the bottom wall of the filter box 5 can slide or filter down better, and are not easy to remain on the bottom wall of the filter box 5.

[0142] Specifically, a blocking rod 12 is fixed between the adjacent ends of the two second fixing plates 16 , and the blocking rod 12 is located on the upper side of the end of the lever plate 14 away from the filter box 5 .

[0143] In this embodiment: since one end of the lever plate 14 includes a rubber block 15, under the action of gravity, one end of the lever plate 14 with the rubber block 15 will droop, and the other end will be tilted and abut against the stop rod 12, and will not contact the surface of the hollow column 8. However, when the hollow column 8 rotates, the arc block 9 is driven to rotate so that the arc block 9 can abut against the lever plate 14, allowing the lever plate 14 to perform a lever movement, so that the hollow column 8 will not be in contact with the lever plate 14 for a long time, and it is not easy to cause wear.

[0144] Specifically, the reciprocating cycle mechanism includes:

[0145] A fourth fixing plate 28 is fixed to the bottom of the overpass plate 1;

[0146] A rotating disk 29 is rotatably connected to one side end of the fourth fixing plate 28;

[0147] A sliding plate 33 is slidably connected to one side end of the fourth fixing plate 28;

[0148] A connecting rod 30, one end of which is rotatably connected to the edge of the rotating disk 29, and the other end of which is rotatably connected to the end of the sliding plate 33;

[0149] A rack 34 is fixed to one side end of the slide plate 33;

[0150] The hollow seat 21 is fixed to the bottom of the filter box 5, and the bottom of the hollow seat 21 is open;

[0151] The screw rod 23 is rotatably connected between the inner walls of both sides of the hollow seat 21, and one end of the screw rod 23 movably penetrates to one side end of the hollow seat 21 and extends outward;

[0152] A nut block 24 is threadedly connected to the circumferential surface of the screw rod 23;

[0153] A gear 35, fixed to the extended end surface of the screw rod 23 and meshing with the rack 34;

[0154] The slide groove 22 is provided at one side end of the hollow seat 21;

[0155] The connecting slider 25 is slidably connected in the slide groove 22 , and one end of the connecting slider 25 is connected to the end of the nut block 24 , and the other end is fixed to the filter plate 26 .

[0156] In this embodiment, the reciprocating circulation mechanism is provided to enable the filter plate 26 to reciprocate back and forth, so that the sludge, water and debris on the top can slide better, wherein the water and sludge are filtered by the second filter holes 27, and the large debris slides along the surface of the filter plate 26 to the conveying mechanism.

[0157] Specifically, a T-shaped groove 31 is formed at the bottom of the fourth fixing plate 28 , a T-shaped block 32 is slidably connected in the T-shaped groove 31 , and the T-shaped block 32 is fixed to the adjacent ends of the sliding plate 33 .

[0158] In this embodiment, by providing the T-slot 31 and the T-block 32, when the slide plate 33 moves, the position is limited by the T-block 32 and can only slide up and down along the T-slot 31, so that when the turntable 29 rotates, the slide plate 33 reciprocates up and down.

[0159] Specifically, the transmission mechanism includes:

[0160] The fifth fixing plates 39 are provided in two pieces and are fixed to both sides of the bottom of the overpass board 1 respectively;

[0161] Sixth fixing plates 42, two of which are provided and are fixed to both sides of the bottom of the overpass board 1 respectively;

[0162] There are two transmission rollers 40, which are rotatably connected between the adjacent ends of the two fifth fixing plates 39 and the two sixth fixing plates 42, and one end of one of the transmission rollers 40 movably penetrates one side end of the fifth fixing plate 39 and extends outward;

[0163] The transmission belt 41 is drivingly connected between the circumferential surfaces of the two transmission rollers 40 , and one side of the transmission belt 41 is located at the bottom of the filter plate 26 .

[0164] In the present embodiment: a space is left between the adjacent ends of the two fifth fixed plates 39 and on both sides of the filter plate 26, which does not affect the movement of the filter plate 26; one side of the conveying mechanism is located at the lower side of the filter plate 26, and the other side is located outside the sedimentation tank 2, which can better convey large debris to the outside of the sedimentation tank 2. Preferably, a receiving hopper is provided outside the sedimentation tank 2 to receive the large debris conveyed out; the surface of the conveyor belt 41 is preferably provided with stripes to increase the friction with the debris and better convey the debris to the outside.

[0165] Specifically, the stirring mechanism includes:

[0166] A rotating rod 4, one end of which is rotatably connected to the bottom of the overpass board 1, and the end of the rotating rod 4 movably passes through the top of the overpass board 1 and extends upward, and the other end is rotatably connected to the bottom of the mud discharge bottom bucket 202;

[0167] Two cross bars 401 are provided, both of which are fixed to the circumferential surface of the rotating rod 4;

[0168] A plurality of scrapers 402 are provided, which are respectively fixed to the bottom of the two cross bars 401 and matched with the bottom wall of the sedimentation tank 2;

[0169] There are two cleaning plates 403 , both of which are fixed to the circumferential surface of the rotating rod 4 and located in the mud discharge bottom bucket 202 .

[0170] In this embodiment, the stirring mechanism is provided to better scrape the sludge into the sludge discharge bottom bucket 202 for easy discharge. The plurality of scrapers 402 are distributed in a logarithmic spiral shape, and the bottom of the scraper 402 matches the bottom wall of the sedimentation tank 2 .

[0171] Specifically, the driving mechanism includes:

[0172] A driving protection box 303 is fixed to the top of the overpass board 1;

[0173] The motor 3 is fixed to the top wall of the driving protection box 303, and the output end of the motor 3 movably penetrates to the bottom of the overpass board 1 and extends downward;

[0174] A driving pinion 301 is fixed to the output end of the motor 3;

[0175] A driven large gear 302 is fixed to the surface of the extended end of the rotating rod 4 and meshes with the driving small gear 301;

[0176] The third fixing plates 17, two of which are provided and both are fixed to the bottom of the overpass board 1;

[0177] A third rotating shaft 18 is rotatably connected to the two third fixing plates 17;

[0178] A second bevel gear 20 is fixed on the output end surface of the motor 3;

[0179] A first bevel gear 19 is fixed to the circumferential surface of the third rotating shaft 18 and is obliquely meshed with the second bevel gear 20;

[0180] The transmission component is connected with the intermittent vibration mechanism, the reciprocating cycle mechanism and the transmission mechanism to realize the operation of the three; the transmission component includes:

[0181] The fourth rotating shaft 36 is rotatably connected to the two first fixing plates 6, and two ends of the fourth rotating shaft 36 respectively movably penetrate the fourth fixing plate 28 and the end of one of the first fixing plates 6 and extend outwards;

[0182] The rotating disk 29 is fixed to the extended end surface of the fourth rotating shaft 36;

[0183] A third bevel gear 43 is fixed on the circumferential surface of the third rotating shaft 18;

[0184] A fourth bevel gear 44 is fixed to the other side of the extended end surface of the fourth rotating shaft 36, and the fourth bevel gear 44 is obliquely meshed with the third bevel gear 43;

[0185] Two first spools 10 are provided, which are fixed to the circumferential surfaces of the first rotating shaft 7 and the fourth rotating shaft 36 respectively;

[0186] A first belt 11 is drivingly connected between the circumferential surfaces of the two first spool wheels 10;

[0187] The second spool 37, of which two are provided, is respectively fixed to the circumferential surface of the third rotating shaft 18 and the driving roller 40;

[0188] The second belt 38 is drivingly connected between the circumferential surfaces of the two second I-shaped wheels 37 .

[0189] In the present embodiment, the driving mechanism is provided to drive multiple mechanisms of the device to move, thereby realizing a single drive without the need for multiple drives, reducing the presence of driving devices, saving not only power consumption but also reducing resource utilization, and having broad application prospects.

[0190] A support bar 45 is fixed between the adjacent ends of the two fifth fixed plates 39. The support bar 45 is located between the conveyor belt 41 and the filter plate 26. The top of the support bar 45 is slidably connected to the bottom of the filter plate 26, and the bottom of the support bar 45 is tangent to the upper surface of the conveyor belt 41.

[0191] Example 2

[0192] This embodiment 2 also provides a toxic sludge purification method, which is used to further explain and illustrate the working principle and implementation method of the above embodiment 1, as follows:

[0193] A method for purifying toxic sludge comprises the following steps:

[0194] S1. First, connect the water pump discharge pipe to the mud inlet hole 103, so that the water pump draws the sludge into the filter box 5. The sludge slides along the bottom of the filter box 5, so that the sludge and water therein are filtered down from the first filter hole 501 and enter the sedimentation tank 2, and the large debris slides along the bottom wall of the filter box 5 and falls on the top of the filter plate 26;

[0195] S2, at this time, the motor 3 is started, and the output end of the motor 3 drives the second bevel gear 20 to rotate. The second bevel gear 20 drives the third shaft 18 to rotate through the oblique meshing with the first bevel gear 19. The third shaft 18 drives the third bevel gear 43 and one of the second I-shaped wheels 37 to rotate. The oblique meshing of the third bevel gear 43 and the fourth bevel gear 44 makes the fourth shaft 36 rotate. The fourth shaft 36 drives one of the first I-shaped wheels 10 to rotate. The transmission of the first belt 11 makes the other first I-shaped wheel 10 drive the first shaft 7 to rotate. The first rotating shaft 7 drives the arc block 9 on its surface to rotate through the hollow column 8, so that the arc block 9 intermittently abuts against one end of the lever plate 14. Since the lever plate 14 is fixed to the surface of the second rotating shaft 13, the second rotating shaft 13 can rotate, so that when one end of the lever plate 14 is intermittently abutted, the lever plate 14 performs a lever movement, and the other end drives the rubber block 15 to intermittently knock the bottom of the filter box 5, so that the filter box 5 vibrates, so that the sludge, water and large debris flowing on the bottom wall of the filter box 5 can slide or filter down better, and are not easy to remain on the bottom wall of the filter box 5;

[0196] S3. At the same time, the fourth rotating shaft 36 can drive the rotating disk 29 to rotate. Since one end of the connecting rod 30 is fixed at the edge of the rotating disk 29, when the rotating disk 29 rotates, the one end of the connecting rod 30 is driven to make an eccentric movement, so that the one end of the connecting rod 30 drives the sliding plate 33 to move. The sliding plate 33 is slidably connected to the T-shaped groove 31 through the T-shaped block 32, so that the position of the sliding plate 33 is limited, so that the sliding plate 33 makes a linear motion up and down, and the sliding plate 33 drives the rack 34 to make a linear motion and reciprocating motion. 34 drives the screw rod 23 to make forward and reverse reciprocating motions through the gear 35 meshing therewith. Since the nut block 24 matches the inside of the hollow seat 21, when the screw rod 23 is forward and reversed, it drives the nut block 24 to make reciprocating linear motions. The nut block 24 drives the filter plate 26 to swing back and forth horizontally through the connecting slider 25, so that large debris falling on the surface of the filter plate 26 can slide onto the conveyor belt 41 better. At the same time, the filter holes on the filter plate 26 can also filter the sludge and water sliding down from the bottom wall of the filter box 5.

[0197] S4. At the same time, when one of the second I-shaped wheels 37 rotates, the second belt 38 drives the other second I-shaped wheel 37 to rotate, so that one of the transmission rollers 40 rotates. Since the transmission belt 41 is transmitted between the surfaces of the two transmission rollers 40, the other transmission roller 40 also rotates. At the same time, the transmission belt 41 can drive the large debris that falls on the top of it to the outside of the sedimentation tank 2, where it can be collected and will not fall into the sedimentation tank 2, thereby avoiding clogging of the mud discharge pipe 203. At the same time, after the sludge is collected in the sedimentation tank 2, the liquid in the purification liquid storage box 46 is added to the sedimentation tank 2, so as to achieve sterilization and purification of the sludge.

[0198] S5, the output end of the motor 3 can also drive the driving pinion 301 to rotate, and the driving pinion 301 drives the driven large gear 302. Due to the different transmission ratios of the driving pinion 301 and the driven large gear 302, the speed of the driven large gear 302 is reduced, driving the rotating rod 4 to rotate slowly. The rotating rod 4 drives the scraper 402 through the cross bar 401 to scrape the sludge at the bottom of the sedimentation tank 2, so that the sludge falls into the mud discharge bottom bucket 202 for easy discharge; at the same time, after the water pump completes the sludge pumping, the operation of the motor 3 can be stopped, and after sedimentation in the sedimentation tank 2, the motor 3 can be started again, so that the multiple scrapers 402 can better scrape the bottom wall of the sedimentation tank 2 to achieve better sludge cleaning.

[0199] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A toxic sludge purification treatment device, characterized in that: It includes a mud scraping device and a sterilization and purification device, wherein the mud scraping device includes: Overpass board (1); A sedimentation tank (2) is arranged on the lower side of the overpass board (1); A mud discharge hopper (202) fixed to the bottom of the sedimentation tank (2); A mud discharge pipe (203) is fixed to the bottom of the mud discharge bottom bucket (202) and is in communication with the mud discharge bottom bucket (202); A sludge scraping mechanism is arranged in the sedimentation tank (2) to discharge the precipitated sludge; A filter box (5) is fixed to the bottom of the overpass board (1), and the bottom of the filter box (5) is inclined; A mud inlet hole (103) is provided on the top of the overpass board (1) and is connected to the filter box (5); A plurality of first filter holes (501) are provided, all of which are opened at the bottom of the filter box (5); An intermittent vibration mechanism connected to the filter box (5) to achieve intermittent knocking of the bottom of the filter box (5); A filter plate (26) is arranged at the lower side of the low edge end of the filter box (5); A plurality of second filtering holes (27) are provided, all of which are opened at the bottom of the filtering plate (26); A reciprocating mechanism connected to the filter plate (26) to enable it to perform a reciprocating motion; A conveying mechanism is arranged on one side of the filter plate (26) to realize the conveying of debris to the outside of the sedimentation tank (2); A driving mechanism is arranged on the sedimentation tank (2) to realize the operation of the driving device; The sterilization and purification device comprises: A purified liquid storage box (46) is fixed to the top of the overpass board (1); Two liquid inlet hoppers (461) are provided, symmetrically fixed on both sides of the top of the purified liquid storage box (46) and communicated with the interior of the purified liquid storage box (46); A downpipe (471) is disposed at the bottom of the purified liquid storage tank (46), and the downpipe (471) penetrates the bottom of the overpass board (1) and extends downward; A sealing mechanism is arranged on the top of the purified liquid storage box (46) to seal the two liquid inlet hoppers (461).

2. A toxic sludge purification device according to claim 1, characterized in that: The intermittent vibration mechanism comprises: Two second fixing plates (16) are provided and are both fixed to the bottom of the overpass plate (1); Two first fixing plates (6) are provided, and the two first fixing plates (6) are fixed between the adjacent ends of the two second fixing plates (16); A second rotating shaft (13) is rotatably connected between the adjacent ends of the two second fixing plates (16); A lever plate (14) fixed to the circumferential surface of the second rotating shaft (13); A rubber block (15) is fixed to an end surface of the lever plate (14) close to the filter box (5), and the rubber block (15) is intermittently in contact with the bottom of the filter box (5); A first rotating shaft (7) is rotatably connected to the adjacent ends of the two first fixing plates (6); A hollow column (8) fixed to the circumferential surface of the first rotating shaft (7); The arc block (9) is fixed on the circumferential surface of the hollow column (8) and intermittently abuts against the top of one side of the lever plate (14).

3. A toxic sludge purification device according to claim 2, characterized in that: A blocking rod (12) is fixed between the adjacent ends of the two second fixing plates (16), and the blocking rod (12) is located on the upper side of the end of the lever plate (14) away from the filter box (5).

4. A toxic sludge purification device according to claim 3, characterized in that: The reciprocating circulation mechanism comprises: A fourth fixing plate (28) fixed to the bottom of the overpass plate (1); A rotating disk (29) rotatably connected to one side end of the fourth fixing plate (28); A slide plate (33) slidably connected to one side end of the fourth fixing plate (28); A connecting rod (30), one end of which is rotatably connected to the edge of the rotating disk (29), and the other end of which is rotatably connected to the end of the sliding plate (33); A rack (34) fixed to one side end of the slide plate (33); A hollow seat (21) is fixed to the bottom of the filter box (5), and the bottom of the hollow seat (21) is open; A screw rod (23) is rotatably connected between the inner walls of both sides of the hollow seat (21), and one end of the screw rod (23) movably penetrates one side end of the hollow seat (21) and extends outward; A nut block (24) threadedly connected to the circumferential surface of the screw rod (23); A gear (35) fixed to the extended end surface of the screw rod (23) and meshing with the rack (34); A slide groove (22) is provided at one side end of the hollow seat (21); A connecting slider (25) is slidably connected in the slide groove (22), and one end of the connecting slider (25) is fixed to the end of the nut block (24), and the other end is fixed to the filter plate (26).

5. A toxic sludge purification device according to claim 4, characterized in that: A T-shaped groove (31) is provided at the bottom of the fourth fixing plate (28), a T-shaped block (32) is slidably connected in the T-shaped groove (31), and the T-shaped block (32) is fixed between the ends of the sliding plate (33) that are close to each other.

6. A toxic sludge purification device according to claim 5, characterized in that: The transmission mechanism comprises: Two fifth fixing plates (39) are provided and are respectively fixed to two sides of the bottom of the overpass plate (1); Sixth fixing plates (42), two of which are provided and are respectively fixed to two sides of the bottom of the overpass plate (1); Two transmission rollers (40) are provided, which are rotatably connected between the adjacent ends of the two fifth fixing plates (39) and the two sixth fixing plates (42), and one end of one of the transmission rollers (40) movably penetrates one side end of the fifth fixing plate (39) and extends outward; A transmission belt (41) is drivingly connected between the circumferential surfaces of the two transmission rollers (40), and one side of the transmission belt (41) is located at the bottom of the filter plate (26).

7. A toxic sludge purification device according to claim 6, characterized in that: The stirring mechanism comprises: A rotating rod (4), one end of which is rotatably connected to the bottom of the overpass board (1), and the end of the rotating rod (4) movably passes through the top of the overpass board (1) and extends upward, and the other end is rotatably connected to the bottom of the mud discharge bottom bucket (202); Two cross bars (401) are provided and are both fixed to the circumferential surface of the rotating rod (4); A plurality of scrapers (402) are provided, which are respectively fixed to the bottoms of the two cross bars (401) and match the bottom wall of the sedimentation tank (2); There are two cleaning plates (403), both of which are fixed to the circumferential surface of the rotating rod (4) and located in the mud discharge bottom bucket (202).

8. A toxic sludge purification device according to claim 7, characterized in that: The driving mechanism comprises: A driving protection box (303) is fixed on the top of the overpass board (1); The motor (3) is fixed to the top wall of the driving protection box (303), and the output end of the motor (3) movably penetrates the bottom of the overpass board (1) and extends downward; A driving pinion (301) fixed to the output end of the motor (3); A driven large gear (302) is fixed to the surface of the extended end of the rotating rod (4) and meshes with the driving small gear (301); Two third fixing plates (17) are provided and are both fixed to the bottom of the overpass plate (1); A third rotating shaft (18) rotatably connected to the two third fixing plates (17); A second bevel gear (20) is fixed on the output end surface of the motor (3); a first bevel gear (19) fixed on the circumferential surface of the third rotating shaft (18) and obliquely meshing with the second bevel gear (20); The transmission component is connected with the intermittent vibration mechanism, the reciprocating cycle mechanism and the transmission mechanism to realize the operation of the three.

9. A toxic sludge purification device according to claim 8, characterized in that: The transmission components include: A fourth rotating shaft (36) is rotatably connected to the two first fixing plates (6), and two ends of the fourth rotating shaft (36) respectively movably penetrate the fourth fixing plate (28) and the end of one of the first fixing plates (6) and extend outwards; The rotating disk (29) is fixed to the extended end surface of the fourth rotating shaft (36); A third bevel gear (43) fixed on the circumferential surface of the third rotating shaft (18); A fourth bevel gear (44) is fixed on the other side of the extended end surface of the fourth rotating shaft (36), and the fourth bevel gear (44) is obliquely meshed with the third bevel gear (43); Two first spools (10) are provided and are respectively fixed on the circumferential surfaces of the first rotating shaft (7) and the fourth rotating shaft (36); A first belt (11) drivingly connected between the circumferential surfaces of the two first spools (10); Two second I-shaped wheels (37) are provided and are respectively fixed on the circumferential surfaces of the third rotating shaft (18) and the driving roller (40); The second belt (38) is drivingly connected between the circumferential surfaces of the two second I-shaped wheels (37).

10. A method for purifying toxic sludge, characterized in that: The method is applied to a toxic sludge purification device as claimed in claim 9, comprising the following steps: S1. First, connect the water pump discharge pipe to the mud inlet hole (103), so that the water pump draws the sludge into the filter box (5), and the sludge slides along the bottom of the filter box (5), so that the sludge and water therein are filtered out from the first filter hole (501) and enter the sedimentation tank (2), and large debris slides along the bottom wall of the filter box (5) and falls onto the top of the filter plate (26); S2, at this time, the motor (3) is started, and the output end of the motor (3) drives the second bevel gear (20) to rotate. The second bevel gear (20) drives the third rotating shaft (18) to rotate by oblique meshing with the first bevel gear (19). The third rotating shaft (18) drives the third bevel gear (43) and one of the second I-shaped wheels (37) to rotate. The oblique meshing between the third bevel gear (43) and the fourth bevel gear (44) causes the fourth rotating shaft (36) to rotate. The fourth rotating shaft (36) drives one of the first I-shaped wheels (10) to rotate. The transmission of the first belt (11) causes the other first I-shaped wheel (10) to drive the first rotating shaft (7 ) rotates, the first rotating shaft (7) drives the arc block (9) on its surface to rotate through the hollow column (8), so that the arc block (9) intermittently abuts against one end of the lever plate (14). Since the lever plate (14) is fixed to the surface of the second rotating shaft (13), the second rotating shaft (13) can rotate, so that when one end of the lever plate (14) is intermittently abutted, the lever plate (14) performs a lever movement, and the other end drives the rubber block (15) to intermittently knock the bottom of the filter box (5), so that the filter box (5) vibrates, so that the sludge, water and large debris flowing on the bottom wall of the filter box (5) can slide or filter down better, and are not easy to remain on the bottom wall of the filter box (5); S3. When the fourth rotating shaft (36) rotates, it can drive the rotating disk (29) to rotate. Since one end of the connecting rod (30) is fixed to the edge of the rotating disk (29), when the rotating disk (29) rotates, it drives one end of the connecting rod (30) to make an eccentric movement, so that one end of the connecting rod (30) drives the sliding plate (33) to move. The sliding plate (33) is slidably connected to the T-shaped groove (31) through the T-shaped block (32), so that the position of the sliding plate (33) is limited, so that the sliding plate (33) makes a linear motion up and down, and the sliding plate (33) drives the rack (34) to make a linear motion back and forth motion, and the rack (34) makes a linear motion back and forth motion. The bar (34) drives the screw rod (23) to make forward and reverse reciprocating motions through the gear (35) meshing therewith. Since the nut block (24) matches the inside of the hollow seat (21), when the screw rod (23) rotates forward and reverse, it drives the nut block (24) to make reciprocating linear motions. The nut block (24) drives the filter plate (26) to shake back and forth horizontally through the connecting slider (25), so that large debris falling on the surface of the filter plate (26) can slide onto the conveyor belt (41) better. At the same time, the filter holes on the filter plate (26) can also filter out the sludge and water sliding down from the bottom wall of the filter box (5); S4. At the same time, when one of the second I-shaped wheels (37) rotates, the second belt (38) drives the other second I-shaped wheel (37) to rotate, so that one of the drive rollers (40) rotates. Since the transmission belt (41) is transmitted between the surfaces of the two drive rollers (40), the other drive roller (40) also rotates. At the same time, the transmission belt (41) can drive the large debris that falls on the top of the transmission belt to the outside of the sedimentation tank (2) so that it can be collected and will not fall into the sedimentation tank (2), thereby avoiding clogging of the mud discharge pipe (203); S5, the output end of the motor (3) can also drive the driving pinion (301) to rotate, and the driving pinion (301) drives the driven large gear (302). Due to the different transmission ratios of the driving pinion (301) and the driven large gear (302), the rotation speed of the driven large gear (302) is reduced, driving the rotating rod (4) to rotate slowly. The rotating rod (4) drives the scraper (402) to scrape the sludge at the bottom of the sedimentation tank (2) through the cross bar (401), so that the sludge falls into the mud discharge bottom bucket (202) for easy discharge; at the same time, after the water pump completes pumping the sludge, the operation of the motor (3) can be stopped, and after sedimentation in the sedimentation tank (2) is completed, the motor (3) can be started again, so that the multiple scrapers (402) can better scrape the bottom wall of the sedimentation tank (2) to achieve better sludge cleaning.

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