Sludge treatment device for water pollution control and method thereof

Abstract

The invention discloses a sludge treatment device for water pollution control and a method thereof, and particularly relates to the field of water pollution control, the sludge treatment device comprises a reaction cylinder, the top of the reaction cylinder is fixedly provided with a sealing cover, the top of the left side of the reaction cylinder is fixedly communicated with a sludge inlet pipe, and the bottom of the reaction cylinder is fixedly communicated with a pair of discharge pipes arranged left and right; an electric control valve I is mounted on the discharge pipe; a controller is fixedly mounted on the front surface of the reaction cylinder. When sludge is discharged into the reaction cylinder through the inlet pipe, the liquid level is detected in real time by the ultrasonic liquid level detector, and when the liquid level reaches a set value, the electric control valve II is closed by the controller to stop feeding; then, the controller controls the starting time and power of the dosing pump and is matched with an upper flow valve, and a set amount of flocculating agent is put into the dosing pump; the effect of accurately controlling the single entering amount of the sludge and the single putting amount of the flocculating agent is achieved, so that the treatment effect on the sludge is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water pollution treatment, in particular to a sludge treatment device for water pollution treatment and a method thereof. BACKGROUND

[0002] With the acceleration of urbanization and the expansion of industrial production, the amount of sludge produced by municipal sewage treatment plants and industrial wastewater treatment stations has increased dramatically. Sludge contains a large amount of organic matter, heavy metals, pathogens and other pollutants, and improper treatment can cause serious secondary pollution, so sludge reduction and stabilization treatment has become a key issue in the environmental protection field.

[0003] At present, the sludge treatment often adopts the process route of "pretreatment-flocculation reaction-solid-liquid separation", and the accurate proportioning of sludge and flocculant is the core link to determine the treatment efficiency; if the sludge amount and the reagent addition amount do not match, it will lead to unstable treatment effect (such as low sludge dewatering rate, turbid supernatant), or cause reagent waste or secondary pollution, and increase the treatment cost. Therefore, the present application provides a sludge treatment device for water pollution treatment and a method thereof to solve the problems in the above background technology. SUMMARY

[0004] The purpose of the present application is to provide a sludge treatment device for water pollution treatment and a method thereof, which can accurately control the single entry amount of sludge and the single addition amount of flocculant, and thus improve the treatment effect of sludge.

[0005] The purpose of the present application can be achieved by the following technical solutions:

[0006] A sludge treatment device for water pollution treatment and a method thereof, comprising a reaction cylinder, a sealing cover is fixedly installed at the top of the reaction cylinder, a sludge inlet pipe is fixedly communicated at the top of the left side of the reaction cylinder, a pair of left and right arranged discharge pipes are fixedly communicated at the bottom of the reaction cylinder, an electric control valve one is installed on the discharge pipe; a controller is fixedly installed on the front of the reaction cylinder, the controller is electrically connected with the electric control valve one, a sludge treatment mechanism is arranged in the reaction cylinder, the sludge treatment mechanism comprises a crushing device communicated with the inlet end of the sludge inlet pipe, an inlet pipe is fixedly connected with the inlet end of the crushing device, an electric control valve two is installed on the inlet pipe; a reagent inlet pipe is fixedly communicated with the right side of the reaction cylinder, a flow valve is installed on the reagent inlet pipe, a reagent feeding pump is fixedly communicated at the top of the reagent inlet pipe, a reagent injection pipe is fixedly communicated at the top of the reagent feeding pump, and the other end of the reagent injection pipe is communicated with a reagent storage container; an ultrasonic liquid level sensor is fixedly installed at the top of the inner side of the sealing cover, the ultrasonic liquid level sensor, the crushing device, the electric control valve two and the reagent feeding pump are electrically connected with the controller.

[0007] As a further further scheme of the present application: the inner bottom of the sealing cover is rotationally connected with a main rotating shaft, the bottom of the main rotating shaft is rotationally connected with the reaction cylinder, and the outer side of the main rotating shaft is fixedly connected with a plurality of groups of stirring blades; the top of the sealing cover is fixedly connected with a motor one, the output end of the motor one is fixedly connected with the top of the main rotating shaft, and the motor one is electrically connected with the controller.

[0008] As a further further scheme of the present application: the bottom of the reaction cylinder is conical.

[0009] As a further further scheme of the present application: the inside of the reaction cylinder is provided with a cleaning mechanism, the cleaning mechanism comprises a fixed ring arranged on the outside of the main rotating shaft, the inside radius of the fixed ring is greater than the length of a single stirring blade; the top of the fixed ring is provided with a lifting mechanism, the bottom of the fixed ring is fixedly connected with a ring-shaped guide rail, the outer side of the ring-shaped guide rail is rotationally connected with a ring-shaped gear, the top left side of the fixed ring is fixedly installed with a motor three, the output end of the motor three penetrates through the fixed ring and is fixedly connected with a pinion, the pinion is engaged with the ring-shaped gear, the motor three adopts a waterproof motor and is electrically connected with the controller; the bottom left and right sides of the ring-shaped gear are fixedly connected with rotationally symmetrical fixed boxes, the inside of the fixed box is fixedly connected with a supporting spring, the other side of the supporting spring is fixedly connected with a sliding block in sliding connection with the inside of the fixed box, and the outside of the sliding block is provided with a scraper main body; the right side of the fixed ring is fixedly connected with a connecting ring through a fixing piece.

[0010] As a further further scheme of the present application: the front side of the sliding block is rotationally connected with a rotating rod, the rear side of the rotating rod penetrates through the sliding block, the front side of the rotating rod is fixedly connected with a connecting block, the connecting block is connected with the scraper main body, a roller assembly is fixedly installed on the outside of the sliding block, the rear end of the rotating rod is provided with an outer circular ring, the front side of the outer circular ring is fixedly connected with the sliding block, the inside of the outer circular ring is provided with a volute spring, the outside end of the volute spring is fixedly connected with the outer circular ring, and the inside end of the outer circular ring is fixedly connected with the surface of the rotating rod; the outside end of the rotating rod is provided with a notch, the rear side of the fixed box is fixedly connected with an L-shaped rod through a connecting piece, the L-shaped rod comprises a horizontal rod and a vertical rod, the inside of the vertical rod is fixedly connected with a clamping block matched with the notch, and the clamping block is inserted into the notch.

[0011] As a further scheme of the present application: the overall shape of the scraper body is arc-shaped and the tip is attached to the surface of the cylinder wall, the scraper body comprises an upper scraper fixedly connected with the connecting block, an elastic metal plate is welded at the bottom of the upper scraper, and a lower scraper is welded at the bottom of the elastic metal plate; the bottom of the fixed box is hingedly connected with a hollow tube through a hinge piece, an extension rod is slidably connected inside the hollow tube, the other end of the extension rod is rotatably connected with a movable rod, the movable rod is fixedly connected with the lower scraper, a spring piece is fixedly connected inside the hollow tube, and the other end of the spring piece is fixedly connected with the extension rod.

[0012] As a further scheme of the present application: the inner surface of the upper scraper is provided with a guide groove, the lower scraper is mirror-symmetric with the upper scraper, the guide groove is designed to be narrowed in a clockwise direction, and a shovel-shaped gap is formed between the two guide grooves.

[0013] As a further scheme of the present application: the lifting mechanism comprises front and rear arranged lifting assemblies, the lifting assemblies comprise a pair of upper and lower mirror-symmetric connecting boxes, the upper connecting box is fixedly connected with the sealing cover, the lower connecting box is fixedly connected with the fixed ring, the inside of the upper connecting box is rotatably connected with a rotatable bidirectional screw rod on the left and right sides, the left and right sides of the bidirectional screw rod are respectively threadedly connected with a moving seat one, the top of the upper connecting box is fixedly connected with a guide rail, the guide rail is respectively slidably connected with two moving seat ones, and the bottoms of the two moving seat ones are sequentially hingedly connected with a group of cross arms, the cross arms comprise a left arm and a right arm hingedly connected at the center, the end points of the left arm and the right arm of the upper cross arm are hingedly connected with the corresponding moving seat one, and adjacent cross arms are connected in a manner that the corresponding end points are hingedly connected; the inside of the lower connecting box is fixedly connected with a guide rod on the left and right sides, the outside of the guide rod is slidably connected with a pair of left and right arranged moving seat twos, and the end points of the left arm and the right arm of the lower cross arm are hingedly connected with the corresponding moving seat two.

[0014] As a further scheme of the present application: the two bidirectional screw rods extend rightwards through the surface of the upper connecting box and are fixedly connected with synchronous pulleys outside, the outside of the two synchronous pulleys is jointly meshed with a transmission belt, the top of the sealing cover is fixedly connected with a motor two, and the output end of the motor two is fixedly connected with the right end of the front bidirectional screw rod; the motor two adopts a waterproof motor and is electrically connected with the controller.

[0015] Another scheme: a sludge treatment method, the sludge treatment comprising the following steps:

[0016] S1, the sludge enters the inside of the reaction cylinder after being crushed by the crushing device, and the sludge liquid level is detected in real time by the ultrasonic liquid level sensor, when the liquid level reaches the set value, the controller closes the electric control valve two to stop the sludge from entering;

[0017] S2, the controller controls the time of dosing pump enabled and cooperates with the flow valve, and the appropriate amount of flocculating agent is put in;

[0018] S3, the controller starts the motor one through the external power supply, the motor one output end drives the main shaft to rotate, and drives multiple groups of stirring blades to mix the sludge and flocculating agent;

[0019] S4, after mixing, the controller closes the motor one to stop mixing, and after a period of time, the sludge forms a solid-liquid separation state, and after the liquid part is collected and the solid part is discharged into the next process, the single sludge treatment is completed.

[0020] Compared with the prior art, the beneficial effects of the present application are:

[0021] The sludge treatment device and method for water pollution control, when the sludge is discharged into the inside of the reaction cylinder through the inlet pipe, the liquid level is detected in real time by the ultrasonic liquid level detector, and when the liquid level reaches the set value, the controller closes the electric control valve two to stop feeding; then the controller controls the starting time and power of the dosing pump and cooperates with the flow valve to put in a set amount of flocculating agent; the effect of precise control of the single entering amount of sludge and the single putting amount of flocculating agent is achieved, and the treatment effect of the sludge is improved.

[0022] In addition, the sludge treatment device and method for water pollution control, the connecting ring is driven downward by the lifting mechanism, so that the folding pipe is stretched to adapt to the movement of the connecting ring, and whether the turbidity sensor contacts the liquid is sensed, when the turbidity sensor contacts the liquid and has a value feedback, the controller starts the pump body through the external power supply, the input end of the pump body draws out the liquid through the folding pipe and the connecting pipe, and discharges the liquid into the discharge pool through the liquid discharge pipe; so that after the sludge is separated into solid and liquid, the liquid is independently collected, which is convenient for subsequent sludge treatment. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a whole structure schematic diagram of a sludge treatment device and method for water pollution control;

[0024] Figure 2 It is a whole structure cross-sectional schematic diagram of a sludge treatment device and method for water pollution control;

[0025] Figure 3 It is a bottom view structure schematic diagram of a cleaning mechanism in a sludge treatment device and method for water pollution control;

[0026] Figure 4 It is a local schematic diagram of a cleaning mechanism in a sludge treatment device and method for water pollution control;

[0027] Figure 5 It is another view schematic diagram of a cleaning mechanism in a sludge treatment device and method for water pollution control;

[0028] Figure 6 It is a lifting mechanism structure diagram of a sludge treatment device and method for water pollution control;

[0029] Figure 7 It is a collection mechanism structure diagram of a sludge treatment device and method for water pollution control;

[0030] Figure 8 It is a first state diagram of the contact between the scraper main body and the reaction cylinder of a sludge treatment device and method for water pollution control;

[0031] Figure 9 It is a second state diagram of the contact between the scraper main body and the reaction cylinder of a sludge treatment device and method for water pollution control;

[0032] Figure 10 It is a third state diagram of the contact between the scraper main body and the reaction cylinder of a sludge treatment device and method for water pollution control.

[0033] In the figure: 10, reaction cylinder; 11, sealing cover; 12, discharge pipe; 13, sludge inlet pipe; 14, controller; 20, sludge treatment mechanism; 201, crushing device; 202, inlet pipe; 203, medicine inlet pipe; 204, dosing pump; 205, motor one; 206, main shaft; 207, stirring blade; 208, ultrasonic liquid level sensor; 30, lifting mechanism; 301, connection box; 302, two-way threaded rod; 303, moving seat one; 304, cross arm; 3041, left arm; 3042, right arm; 305, guide rod; 306, moving seat two; 307, motor two; 308, synchronous pulley; 309, transmission belt; 40, cleaning mechanism; 401, fixed ring; 402, ring gear; 403, pinion; 404, fixed box; 405, sliding block; 406, support spring; 407, rotating rod; 408, connecting block; 409, scraper main body; 4091, upper scraper; 4092, elastic metal plate; 4093, lower scraper; 4094, guide groove; 410, hollow pipe; 411, extension rod; 412, movable rod; 413, roller assembly; 414, outer ring; 415, volute spring; 416, L-shaped rod; 417, motor three; 50, collection mechanism; 501, pump body; 502, connecting pipe; 503, folding pipe; 504, connecting ring. DETAILED DESCRIPTION

[0034] As Figure 1As shown, a sludge treatment device for water pollution treatment and a method thereof, including a reaction cylinder 10, a sealing cover 11 is fixedly installed on the top of the reaction cylinder 10, a sludge inlet pipe 13 is fixedly communicated with the left top of the reaction cylinder 10, a pair of left and right arranged discharge pipes 12 are fixedly communicated with the bottom of the reaction cylinder 10, and an electric control valve one is installed on the discharge pipe 12; a controller 14 is fixedly installed on the front of the reaction cylinder 10, and the controller 14 is electrically connected with the electric control valve one.

[0035] Reference Figures 1-3 The inside of the reaction cylinder 10 is provided with a sludge treatment mechanism 20, the sludge treatment mechanism 20 includes a crushing device 201 communicated with the inlet end of the sludge inlet pipe 13, the inlet end of the crushing device 201 is fixedly connected with an inlet pipe 202, and an electric control valve two is installed on the inlet pipe 202; a reagent inlet pipe 203 is fixedly communicated with the right side of the reaction cylinder 10, a flow valve is installed on the reagent inlet pipe 203, a reagent adding pump 204 is fixedly communicated with the top of the reagent inlet pipe 203, a reagent injection pipe is fixedly communicated with the top of the reagent adding pump 204, and the other end of the reagent injection pipe is communicated with a reagent storage container; an ultrasonic liquid level sensor 208 is fixedly installed on the inside top of the sealing cover 11, the ultrasonic liquid level sensor 208, the crushing device 201, the electric control valve two and the reagent adding pump 204 are electrically connected with the controller 14.

[0036] Further, a main rotating shaft 206 is rotatably connected with the inside bottom of the sealing cover 11, the bottom of the main rotating shaft 206 is rotatably connected with the reaction cylinder 10, a plurality of groups of stirring blades 207 are fixedly connected with the outside of the main rotating shaft 206; a motor one 205 is fixedly connected with the top of the sealing cover 11, the output end of the motor one 205 is fixedly connected with the top of the main rotating shaft 206, and the motor one 205 is electrically connected with the controller 14.

[0037] In the sludge treatment, the sludge is first crushed by entering the pipe 202 and then discharged into the reaction cylinder 10. The crushing device 201 (using a rotating crushing knife group) can crush the large particles (such as fiber bundles and sand blocks) in the sludge with a diameter greater than 5mm to a particle size less than 2mm, avoiding the influence of large particles on the uniformity of the subsequent mixing of flocculants and sludge, and improving the reaction efficiency. The ultrasonic liquid level sensor 208 feeds back the liquid level of the sludge in real time during the discharge process. The ultrasonic liquid level sensor 208 emits ultrasonic waves and receives reflected signals to calculate the sludge liquid level in real time. When the liquid level reaches the preset value, a feedback signal is immediately sent to the controller 14, and the controller 14 receives the signal and closes the electric control valve two, so that the sludge no longer enters, thereby ensuring that the amount of sludge treated at a time is fixed. Then the controller 14 starts the dosing pump 204 through the external power supply. The input end of the dosing pump 204 draws the flocculant from the storage container through the dosing pipe and draws the flocculant into the reaction cylinder 10 through the output end. The use time of the dosing pump 204 is controlled by the controller 14 to control the amount of flocculant injected at a time, so that the set amount of sludge at a time can be more fully reacted with the set amount of flocculant at a time. Then the controller 14 starts the motor one 205 through the external power supply. The output end of the motor one 205 drives the main shaft 206 and the stirring blade 207 to rotate, thereby fully mixing the sludge and the flocculant. After stirring for a certain period of time, the controller 14 closes the motor one 205 to complete the mixing, and then the mixed flocculant sludge is allowed to stand for a period of time. The sludge becomes a solid-liquid separation state, with liquid on the top and relatively viscous solid-liquid coexistence state on the bottom. Thus, the effect of preliminary treatment of the sludge is achieved, greatly reducing the water content in the sludge.

[0038] Preferably, the bottom of the reaction cylinder 10 is conical, which can facilitate the discharge of the sludge.

[0039] In order to collect the liquid separated from the sludge, a collecting mechanism 50 is provided.

[0040] Reference Figure 2 、 Figure 7 The collecting mechanism 50 includes a pump body 501 fixedly connected to the top of the sealing cover 11. The input end of the pump body 501 is fixedly connected with a connecting pipe 502. The output end of the pump body 501 is fixedly connected with a liquid discharge pipe. The other end of the liquid discharge pipe is communicated with a discharge pool. The other end of the connecting pipe 502 penetrates through the sealing cover 11 and is fixedly communicated with a folding pipe 503. The bottom of the folding pipe 503 is fixedly connected with a connecting ring 504 which can move up and down. A filter screen is fixedly installed on the inner surface of the connecting ring 504. A turbidity sensor is fixedly installed on the bottom of the connecting ring 504. The turbidity sensor and the pump body 501 are electrically connected with the controller 14 respectively.

[0041] When the sludge is partially liquid separated, by moving the connecting ring 504 downward, so that the folding pipe 503 is stretched to adapt to the movement of the connecting ring 504, and whether the turbidity sensor contacts the liquid is sensed, when the turbidity sensor contacts the liquid, the controller 14 starts the pump body 501 through the external power supply, the input end of the pump body 501 is connected with the folding pipe 503 and the connecting pipe 502 to extract the liquid, and the liquid is discharged into the discharge tank through the liquid discharge pipe, and the speed of the connecting ring 504 is slowed down, and the turbidity value is larger when the turbidity sensor is immersed in the liquid to a deeper position, when the value reaches the set value, it is judged that the turbidity sensor is located at the solid-liquid interface of the sludge, the connecting ring 504 stops moving, and the controller 14 closes the pump body 501, and the connecting ring 504 moves upward to return to the original state; so as to achieve the effect of collecting the liquid separated from the sludge; then the controller 14 opens the electric control valve one, and the sludge is discharged from the reaction cylinder 10 through the two discharge pipes 12; a screw conveyor can be arranged at the bottom of the reaction cylinder 10 to discharge the sludge to the next process.

[0042] In the next processing, the residual sludge of the previous batch (may contain unreacted reagents, concentrated solid particles) will adhere to the cylinder wall, if not cleaned, the residual sludge will mix with the new sludge after the next batch of new sludge is added, which will change the actual concentration, pH value and reagent ratio of the new sludge (such as residual flocculants will cause excessive flocculation of new sludge); Especially for scenes that need to accurately control the reaction conditions (such as conditioning before sludge dewatering, reagent catalytic reaction), residual sludge will directly cause inconsistent treatment effect of each batch, and "qualified-unqualified" fluctuation will occur; The traditional scraper mostly adopts the wall type, such as the L-shaped scraper attached to the surface of the cylinder wall, such scraper is used by rotating to scrape the residual sludge on the cylinder wall, however, such scraper is directly immersed in the sludge during sludge reaction, and the particles in the sludge may be stuck in the gap between the scraper and the cylinder wall, and the scraper is often stuck when the driving part drives the scraper to rotate. It is not suitable for this interval type sludge treatment scene; therefore, a cleaning mechanism 40 is proposed.

[0043] Reference Figures 2-5 , Figures 8-10The cleaning mechanism 40 comprises a fixed ring 401 arranged outside the main rotating shaft 206, the inner radius of the fixed ring 401 is greater than the length of a single stirring blade 207; the top of the fixed ring 401 is provided with the lifting mechanism 30, the bottom of the fixed ring 401 is fixedly connected with a ring-shaped guide rail, the outer side of the ring-shaped guide rail is rotatably connected with a ring-shaped gear 402, the top left side of the fixed ring 401 is fixedly installed with a motor three 417, the output end of the motor three 417 penetrates through the fixed ring 401 and is fixedly connected with a pinion 403, the pinion 403 is engaged with the ring-shaped gear 402, the motor three 417 adopts a waterproof motor and is electrically connected with the controller 14; the bottom left and right sides of the ring-shaped gear 402 are fixedly connected with rotationally symmetrical fixed boxes 404, the inner side of the fixed box 404 is fixedly connected with a supporting spring 406, the other side of the supporting spring 406 is fixedly connected with a sliding block 405 in sliding connection with the inside of the fixed box 404, the outer side of the sliding block 405 is provided with a scraper main body 409; the right side of the fixed ring 401 is fixedly connected with the connecting ring 504 through a fixing piece.

[0044] Specifically, referring to Figure 4 、 Figure 5 , the front side of the sliding block 405 is rotatably connected with a rotating rod 407, the rear side of the rotating rod 407 penetrates through the sliding block 405, the front side of the rotating rod 407 is fixedly connected with a connecting block 408, the connecting block 408 is connected with the scraper main body 409, the outer side of the sliding block 405 is fixedly installed with a roller assembly 413, the rear end of the rotating rod 407 is provided with an outer circular ring 414, the front side of the outer circular ring 414 is fixedly connected with the sliding block 405, the inside of the outer circular ring 414 is provided with a volute spring 415, the outer side end of the volute spring 415 is fixedly connected with the outer circular ring 414, the inner side end of the outer circular ring 414 is fixedly connected with the surface of the rotating rod 407; the outer side end of the rotating rod 407 is provided with a notch, the rear side of the fixed box 404 is fixedly connected with an L-shaped rod 416 through a connecting piece, the L-shaped rod 416 comprises a horizontal rod and a vertical rod, the inner side of the vertical rod is fixedly connected with a clamping block matched with the notch, the clamping block is inserted into the notch.

[0045] Further, the whole of the scraper body 409 is arc-shaped and the tip is attached to the surface of the cylinder wall, the scraper body 409 comprises an upper scraper 4091 fixedly connected with the connecting block 408, the bottom of the upper scraper 4091 is welded with an elastic metal plate 4092, and the bottom of the elastic metal plate 4092 is welded with a lower scraper 4093; the bottom of the fixed box 404 is hingedly connected with a hollow pipe 410 through a hinge, the inside of the hollow pipe 410 is slidably connected with an extension rod 411, the other end of the extension rod 411 is rotatably connected with a movable rod 412, the movable rod 412 is fixedly connected with the lower scraper 4093, the inside of the hollow pipe 410 is fixedly connected with a spring member, and the other end of the spring member is fixedly connected with the extension rod 411.

[0046] Preferably, the inside surface of the upper scraper 4091 is provided with a guide groove 4094, the lower scraper 4093 is mirror-symmetric with the upper scraper 4091, the guide groove 4094 is designed to be narrowed in a clockwise direction, and the two guide grooves 4094 form a shovel-shaped gap. The design that the guide groove 4094 is narrowed in a clockwise direction is opposite to the rotating direction of the scraper body 409, the centrifugal force can be utilized to gather the scooped sludge to the end of the groove body, and the sludge slides to the center of the cylinder bottom along the slope of the groove body (30° with the horizontal direction), so that the probability of the sludge falling back along the cylinder wall is reduced.

[0047] In the initial state, the scraper body 409 is rotatably connected to the sliding block 405 through the rotating rod 407, but the angle of the scraper body 409 is fixed due to the clamping of the clamping block and the gap on the outer side of the rotating rod 407; after the sludge is completely discharged, the controller 14 starts the lifting mechanism 30 to slowly lower the fixed ring 401, and at the same time, the controller 14 starts the motor three 417 through the external power supply, the motor three 417 drives the pinion gear 403 to rotate, and drives the ring gear 402 to rotate through the transmission of the pinion gear 403 and the ring gear 402, and then the scraper body 409 on both sides moves along the inner wall of the reaction cylinder 10 in a threaded path, the scraper body 409 contacts the residual sludge and scoops up the sludge, and the sludge falls to the bottom of the reaction cylinder 10 through the inertia of the movement of the scraper body 409, forming a shovel-shaped space through the two guide grooves 4094, preventing the scooped sludge from contacting the cylinder wall when falling, in this process, the supporting spring 406 provides support force to the sliding block 405 and the scraper body 409, so that the scraper body 409 keeps close to the cylinder wall of the reaction cylinder 10, and the roller assembly 413 rolls along the cylinder wall; when the scraper body 409 moves to the turning place of the reaction cylinder 10, the lower scraper 4093 contacts the inclined cylinder wall of the reaction cylinder 10, the force at the time of contact makes the elastic metal plate 4092 bend inward to produce corresponding deformation, and at the same time, the position of the lower scraper 4093 changes, the movable rod 412 makes the inclined structure formed by the extension rod 411 and the hollow tube 410 correspondingly adapt to the inclination, and at the same time, the extension rod 411 slides along the inside of the hollow tube 410 to drive the spring member to deform, the spring member after deformation and the elastic metal plate 4092 after deformation rebound on the lower scraper 4093, so that the lower surface of the lower scraper 4093 is close to the inclined surface of the reaction cylinder 10, when the elastic metal plate 4092 is located at the turning place (as shown in Figure 8 ), the scraper body 409 is L-shaped, and the sharp end of the scraper body 409 is close to the surface of the turning place of the reaction cylinder 10, and at this time the lifting mechanism 30 temporarily stops descending, and only rotates by the motor three 417, so that the scraper body 409 close to the turning place of the reaction cylinder 10 rotates multiple times to clean the sludge in the turning place;

[0048] Then the lifting mechanism 30 continues to drive the cleaning mechanism 40 to slowly descend, when the scraper main body 409 is completely located at the inclined position of the reaction cylinder 10, the scraper main body 409 moves downward while rotating, in order to adapt to the gradual narrowing of the surface of the inclined position of the reaction cylinder 10, the scraper main body 409 is constantly moved inward to adapt, therefore, when the roller assembly 413 rolls along the surface of the inclined position of the reaction cylinder 10, the position of the roller assembly 413 will move inward to adapt to the movement of the inclined surface of the reaction cylinder 10, and the roller assembly 413 will drive the sliding block 405 and the scraper main body 409 to slide inward to adapt to the radius change of the inclined position of the reaction cylinder 10, and make the supporting spring 406 compressed, at the same time, the sliding block 405 moves inward to drive the rotating rod 407 to move in the same direction, so that the rotating rod 407 is separated from the clamping block on the L-shaped rod 416, so that the rotation restriction of the scraper main body 409 is released, and because the elastic force of the elastic metal plate 4092 plus the spring element is greater than the elastic force of the volute spring 415, the elastic metal plate 4092 rebounds to the original state, and the lower scraper 4093 is reset, in order to adapt to the contact state of the scraper main body 409 and the cylinder wall, the scraper main body 409 inclines inward with the rotating rod 407 as the center, at the same time, the volute spring 415 is deformed, and the elastic force of the volute spring 415 acts on the scraper main body 409, so that the scraper main body 409 is attached to the inclined inner wall of the reaction cylinder 10 (as shown in Figure 9 The inclined scraper main body 409 can clean the sludge in the inner wall of the conical section of the reaction cylinder 10 when rotating, and the cleaned sludge is discharged through the discharge pipe 12.

[0049] After cleaning is completed, the scraper main body 409 returns to the original position through the above opposite process, and when the roller assembly 413 is separated from the inclined cylinder wall of the reaction cylinder 10, the sliding block 405 is driven outward by the rebound of the supporting spring 406, so that the clamping block is reinserted into the gap, and the angle restriction of the scraper main body 409 is realized.

[0050] Reference Figure 6The lifting mechanism 30 comprises front and rear arranged lifting assemblies, the lifting assemblies comprise a pair of upper and lower mirror-symmetrical connecting boxes 301, the upper connecting box 301 is fixedly connected with the sealing cover 11, the lower connecting box 301 is fixedly connected with the fixed ring 401, the inside left and right sides of the upper connecting box 301 are jointly rotatably connected with rotatable bidirectional screw rods 302, the left and right sides of the bidirectional screw rods 302 are respectively threadedly connected with moving seats one 303, the top of the upper connecting box 301 is fixedly connected with guide rails, the guide rails are respectively slidably connected with the two moving seats one 303, the bottoms of the two moving seats one 303 are sequentially hingedly connected with a group of cross arms 304, the cross arms 304 comprise left arms 3041 and right arms 3042 which are hingedly connected at the centers, the end points of the left arms 3041 and the right arms 3042 of the upper cross arms 304 are hingedly connected with the corresponding moving seats one 303, adjacent cross arms 304 are connected through the end point hinged connection; the inside left and right sides of the lower connecting box 301 are jointly fixedly connected with guide rods 305, the outside of the guide rods 305 is slidably connected with a pair of left and right arranged moving seats two 306, the end points of the left arms 3041 and the right arms 3042 of the lower cross arms 304 are hingedly connected with the corresponding moving seats two 306.

[0051] Specifically, the two bidirectional screw rods 302 extend rightwards and penetrate out of the surface of the upper connecting box 301, and synchronous pulleys 308 are fixedly connected to the outside of the two bidirectional screw rods 302, the outside of the two synchronous pulleys 308 jointly engages a transmission belt 309, the top of the sealing cover 11 is fixedly connected with a motor two 307, the output end of the motor two 307 is fixedly connected with the right end of the front bidirectional screw rod 302; the motor two 307 adopts a waterproof motor and is electrically connected with the controller 14.

[0052] In use, when the lifting mechanism 30 is started, the motor two 307 is started by the controller 14 through an external power supply, the motor two 307 drives the synchronous pulleys 308 to rotate, and the two bidirectional screw rods 302 are driven to rotate in the same direction through the transmission of the pair of synchronous pulleys 308 and the transmission belt 309, the two moving seats one 303 on the same side are driven to slowly move towards each other, and then the cross arms 304 are driven to gradually change the included angle at the top and gradually increase the height, when the lowermost cross arm 304 is deformed, the two moving seats two 306 are driven to slide towards each other, and the fixed ring 401 is driven to move downwards through the height increase of the group of cross arms 304; when the output end of the motor two 307 reverses, the included angle of the cross arms 304 gradually increases, the height gradually shortens, and the fixed ring 401 is slowly driven to move upwards, thereby achieving the effect of driving the cleaning mechanism 40 to move up and down.

[0053] The descending speed of the lifting mechanism 30 matches the rotating speed of the ring gear 402, so that the motion track of the scraper main body 409 is a'spiral line', and it is ensured that each part of the cylinder wall is covered by the scraper main body 409.

[0054] A sludge treatment method, including two treatment stages, the first stage including entering a quantitative sludge into the inside of a reaction cylinder 10 and adding a suitable amount of flocculant; the second stage, mixing the sludge and the flocculant by stirring blades to separate the liquid in the sludge.

[0055] The second treatment stage includes the following steps:

[0056] 1) Initially, the sludge is broken by a breaking device 201 and then enters the inside of the reaction cylinder 10, and at the same time, the sludge liquid level is detected in real time by an ultrasonic liquid level sensor 208, when the liquid level reaches the set value, the controller 14 closes the electric control valve two to stop the sludge from entering.

[0057] 2) Then, the controller 14 controls the time when the dosing pump 204 is enabled and cooperates with the flow valve to add a suitable amount of flocculant.

[0058] The second treatment stage includes the following steps:

[0059] 1) The controller 14 starts the motor one 205 through an external power supply, the motor one 205 output end drives the main shaft 206 to rotate, and drives multiple sets of stirring blades 207 to mix the sludge and the flocculant.

[0060] 2) After mixing for a period of time, the controller 14 closes the motor one 205 to stop mixing, and after a period of time, the sludge forms a solid-liquid separation state, and after the liquid part is collected and the solid part is discharged into the next process, the single sludge treatment is completed.

[0061] The above shows and describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. A sludge treatment device for water pollution control, comprising a reaction cylinder (10), a sealing cover (11) fixedly installed on the top of the reaction cylinder (10), a sludge inlet pipe (13) fixedly connected to the top left side of the reaction cylinder (10), and a pair of discharge pipes (12) arranged left and right fixedly connected to the bottom of the reaction cylinder (10), wherein an electrically controlled valve is installed on the discharge pipe (12); a controller (14) is fixedly installed on the front side of the reaction cylinder (10), and the controller (14) is electrically connected to the electrically controlled valve, characterized in that, The inside of the reaction cylinder (10) is provided with a sludge treatment mechanism (20), the sludge treatment mechanism (20) includes a crushing device (201) communicated with the inlet end of the sludge inlet pipe (13), the inlet end of the crushing device (201) is fixedly connected with an inlet pipe (202), an electric control valve two is installed on the inlet pipe (202); The right side of the reaction cylinder (10) is fixedly communicated with a medicine inlet pipe (203), a flow valve is installed on the medicine inlet pipe (203), a medicine inlet pipe (203) is fixedly communicated with a medicine inlet pipe (203), and the top of the medicine inlet pipe (203) is fixedly communicated with a medicine inlet pipe (203), and the other end of the medicine inlet pipe is communicated with the medicine storage container; The inside top of the sealing cover (11) is fixedly installed with an ultrasonic liquid level sensor (208), and the ultrasonic liquid level sensor (208), the crushing device (201), the electric control valve two and the medicine inlet pipe (204) are electrically connected with the controller (14).

2. The sludge treatment device for water pollution treatment according to claim 1, characterized by The inside bottom of the sealing cover (11) is rotatably connected with a main rotating shaft (206), the bottom of the main rotating shaft (206) is rotatably connected with the reaction cylinder (10), and the outside of the main rotating shaft (206) is fixedly connected with a plurality of stirring blades (207); The top of the sealing cover (11) is fixedly connected with a motor one (205), the output end of the motor one (205) is fixedly connected with the top of the main rotating shaft (206), and the motor one (205) is electrically connected with the controller (14).

3. The sludge treatment device for water pollution treatment according to claim 1, characterized by The bottom of the reaction cylinder (10) is conical.

4. The sludge treatment device for water pollution treatment according to claim 1, characterized by The inside of the reaction cylinder (10) is provided with a cleaning mechanism (40), the cleaning mechanism (40) includes a fixed ring (401) arranged outside the main rotating shaft (206), the inside radius of the fixed ring (401) is greater than the length of a single stirring blade (207); The top of the fixed ring (401) is provided with a lifting mechanism (30), the bottom of the fixed ring (401) is fixedly connected with a ring-shaped guide rail, the outside of the ring-shaped guide rail is rotatably connected with a ring-shaped gear (402), the top left side of the fixed ring (401) is fixedly installed with a motor three (417), the output end of the motor three (417) penetrates through the fixed ring (401) and is fixedly connected with a pinion (403), the pinion (403) is engaged with the ring-shaped gear (402), the motor three (417) adopts a waterproof motor and is electrically connected with the controller (14); The bottom of the ring-shaped gear (402) is fixedly connected with a rotationally symmetric fixed box (404) on the left and right sides, the inside of the fixed box (404) is fixedly connected with a supporting spring (406), the other side of the supporting spring (406) is fixedly connected with a sliding block (405) slidably connected with the inside of the fixed box (404), and the outside of the sliding block (405) is provided with a scraper main body (409); The right side of the fixed ring (401) is fixedly connected with a connecting ring (504) through a fixing piece.

5. The sludge treatment device for water pollution treatment according to claim 4, characterized by The front side of the sliding block (405) is rotationally connected with a rotating rod (407), the rear side of the rotating rod (407) penetrates the sliding block (405), the front side of the rotating rod (407) is fixedly connected with a connecting block (408), the connecting block (408) is connected with a scraper body (409), the outer side of the sliding block (405) is fixedly installed with a roller assembly (413), the rear end of the rotating rod (407) is provided with an outer ring (414), the front side of the outer ring (414) is fixedly connected with the sliding block (405), the inside of the outer ring (414) is provided with a volute spring (415), the outer side end of the volute spring (415) is fixedly connected with the outer ring (414), the inner side end of the outer ring (414) is fixedly connected with the surface of the rotating rod (407); the outer side end of the rotating rod (407) is provided with a notch, the rear side of the fixed box (404) is fixedly connected with an L-shaped rod (416) through a connecting piece, the L-shaped rod (416) comprises a horizontal rod and a vertical rod, the inner side of the vertical rod is fixedly connected with a clamping block matched with the notch, and the clamping block is inserted with the notch.

6. The sludge treatment device for water pollution treatment according to claim 5, characterized by The whole of the scraper body (409) is arc-shaped and the tip end is attached to the surface of the cylinder wall, the scraper body (409) comprises an upper scraper (4091) fixedly connected with the connecting block (408), the bottom of the upper scraper (4091) is welded with an elastic metal plate (4092), and the bottom of the elastic metal plate (4092) is welded with a lower scraper (4093); the bottom of the fixed box (404) is hingedly connected with a hollow pipe (410) through a hinge piece, the inside of the hollow pipe (410) is slidingly connected with an extension rod (411), the other end of the extension rod (411) is rotationally connected with a movable rod (412), the movable rod (412) is fixedly connected with the lower scraper (4093), the inner side of the hollow pipe (410) is fixedly connected with a spring piece, and the other end of the spring piece is fixedly connected with the extension rod (411).

7. The sludge treatment device for water pollution treatment according to claim 6, characterized by The inner side surface of the upper scraper (4091) is provided with a guide groove (4094), the lower scraper (4093) is mirror-symmetric with the upper scraper (4091), the guide groove (4094) is designed to be narrowed in a clockwise direction, and a shovel-shaped gap is formed between the two guide grooves (4094).

8. The sludge treatment device for water pollution treatment according to claim 4, characterized by The lifting mechanism (30) comprises front and rear arranged lifting assemblies, the lifting assemblies comprise a pair of upper and lower mirror-symmetrical connecting boxes (301), the upper connecting box (301) is fixedly connected with the sealing cover (11), the lower connecting box (301) is fixedly connected with the fixed ring (401), the inside left and right sides of the upper connecting box (301) are jointly rotatably connected with rotatable bidirectional screw rods (302), the left and right sides of the bidirectional screw rods (302) are respectively threadedly connected with moving seats one (303), the top of the upper connecting box (301) is fixedly connected with guide rails, the guide rails are respectively slidably connected with the two moving seats one (303), the bottoms of the two moving seats one (303) are sequentially hingedly connected with a group of cross arms (304), the cross arms (304) comprise left arms (3041) and right arms (3042) hingedly connected at centers, the end points of the left arms (3041) and the right arms (3042) of the upper cross arms (304) are hingedly connected with the corresponding moving seats one (303), adjacent cross arms (304) are connected in a mode that the end points are hingedly connected; the inside left and right sides of the lower connecting box (301) are jointly fixedly connected with guide rods (305), the outside of the guide rods (305) is slidably connected with a pair of left and right arranged moving seats two (306), the end points of the left arms (3041) and the right arms (3042) of the lower cross arms (304) are hingedly connected with the corresponding moving seats two (306).

9. The sludge treatment device for water pollution treatment according to claim 8, characterized by The two bidirectional screw rods (302) extend rightwards and penetrate out of the surface of the upper connecting box (301), and the outside of the bidirectional screw rods (302) is fixedly connected with synchronous pulleys (308), the outside of the two synchronous pulleys (308) jointly meshes with a transmission belt (309), the top of the sealing cover (11) is fixedly connected with a motor two (307), the output end of the motor two (307) is fixedly connected with the right end of the front bidirectional screw rod (302); the motor two (307) adopts a waterproof motor and is electrically connected with the controller (14).

10. A sludge treatment method applied to the sludge treatment device for water pollution treatment according to any one of claims 1-9, characterized in that, The sludge treatment comprises the following steps: S1, the sludge is broken by a breaking device (201) and then enters the inside of a reaction cylinder (10), and an ultrasonic liquid level sensor (208) detects the sludge liquid level in real time, when the liquid level reaches a set value, a controller (14) closes an electric control valve two to stop the sludge from entering; S2, the controller (14) controls the time when a dosing pump (204) is started and cooperates with a flow valve to input an appropriate amount of flocculant; S3, the controller (14) starts a motor one (205) through an external power supply, the output end of the motor one (205) drives a main shaft (206) to rotate, and drives a plurality of stirring blades (207) to mix the sludge and the flocculant; S4, after the mixing is completed, the controller (14) closes the motor one (205) to stop the mixing, after a period of standing, the sludge forms a solid-liquid separation state, after the liquid part is collected and the solid part is discharged into the next process, the single sludge treatment is completed.

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