Aeration tank sludge discharge device and method for separating solid waste for sewage treatment

Abstract

The present invention relates to the field of sewage treatment, and specifically to an aeration tank sludge discharge device for separable solid waste for sewage treatment, which is arranged on an aeration tank, and has a sludge discharge port at the center of the bottom of the aeration tank. A plurality of aeration pipes are evenly distributed on the inner lower half of the aeration tank, and a plurality of aeration plates are evenly spaced on each aeration pipe, including a lifting frame, a pool edge drainage mechanism, a first centralized guiding mechanism, a second centralized guiding mechanism, and a range adjustment mechanism. A lifting driver is installed on the top of the aeration tank. The present invention uses the pool edge drainage mechanism, the first centralized guiding mechanism, the second centralized guiding mechanism to use the aeration plate to emit gas, thereby guiding the emitted gas to the pool edge and the pool bottom, so as to cause the sludge to be washed toward the sludge discharge port, avoid the situation where a large amount of sludge is attached to the aeration tank and cannot be discharged cleanly, and improve the sludge discharge effect. The present invention also relates to a sludge discharge method for an aeration tank for separable solid waste for sewage treatment.

Description

Technical Field

[0001] The invention relates to the field of sewage treatment, in particular to an aeration tank mud discharge device for sewage treatment with separable solid waste, and also to an aeration tank mud discharge method for sewage treatment with separable solid waste. Background Art

[0002] Sewage treatment is the process of purifying sewage so that it meets the water quality requirements for discharge into a certain water body or reuse. The treatment effect of common sewage treatment devices is not ideal. There is a lack of pre-discharge of sludge and fixed waste in the sewage, which makes the sewage treatment process more cumbersome and unable to achieve the expected effect faster. The operation is complicated, time-consuming and labor-intensive, and the working efficiency of sewage treatment equipment is low.

[0003] The currently disclosed Chinese patent CN201710482540.1 is a solid-liquid screening device for sewage pretreatment, comprising a pretreatment device housing, a water inlet is provided on the top of the pretreatment device housing, a scraping device is arranged inside the pretreatment device housing, both sides of the bottom of the inner wall of the pretreatment device housing are fixedly connected with solid waste collection boxes, a side of the solid waste collection box away from the pretreatment device housing is fixedly connected with a vertical screen, and the tops of the two vertical screens are fixedly connected through a horizontal screen; the scraping device comprises an upper support plate and a lower support plate, the bottom of the upper support plate and the top of the lower support plate are fixedly connected with a limiting slide plate through a fixed plate, a motor housing is slidably connected between the two limiting slide plates, a driving motor is fixedly connected to the inside of the motor housing, a driving shaft is fixedly connected to the output shaft of the driving motor, a moving gear is fixedly connected to the end of the driving shaft away from the driving motor, and the top of the lower support plate is fixedly connected to the position of the moving gear. A rack plate adapted thereto is connected, the moving gear and the rack plate mesh with each other, the moving gear is fixedly connected to a rotating shaft on the side away from the driving shaft, and a scraper head is fixedly connected to the surface of the rotating shaft, the side surfaces of the upper support plate and the lower support plate are fixedly connected to the back side of the pre-treatment device shell, and a moving groove is provided on the back side of the pre-treatment device shell corresponding to the position of the rotating shaft, the end of the rotating shaft away from the moving gear passes through the moving groove and extends to the interior of the pre-treatment device shell and is fixedly connected to the scraper head, the bottom of the scraper head is in contact with the top of the horizontal screen, the scraper head includes a fixed collar, the surface of the fixed collar is fixedly connected to a scraper plate, the side of the scraper plate away from the fixed collar is fixedly connected to scraper teeth, the number of the scraper plates is eight and they are equidistantly arranged around the surface of the fixed collar, a water seepage screen is provided at the bottom of the solid waste collection box close to the vertical screen, and a water outlet pipe is fixedly connected to the bottom of the rear side of the inner wall of the pre-treatment device shell.

[0004] According to the above patent, the patent filters sewage through vertical and horizontal screens so that solid waste and sludge are discharged into a solid waste collection box. However, this method causes the vertical and horizontal screens to be blocked, and the scraping effect of the scraping device on the waste on the surface is not ideal, resulting in poor sewage treatment effect. A large amount of sludge will adhere to the edge and bottom of the pool. According to the treatment of sewage by the aeration tank, gas that is constantly pressed upward will be generated during the treatment process. Therefore, there is a need for a sludge discharge device that can guide the gas to the edge and bottom of the aeration tank, thereby flushing the sludge to the sludge discharge port. Summary of the invention

[0005] In view of the problems existing in the prior art, an aeration tank sludge discharge device for sewage treatment capable of separating solid waste is provided. The present invention utilizes an aeration plate to emit gas through a pool edge drainage mechanism, a first centralized guiding mechanism and a second centralized guiding mechanism, thereby guiding the emitted gas to the pool edge and the pool bottom, causing the sludge to be flushed toward the sludge discharge port, avoiding the situation where a large amount of sludge is attached to the aeration tank and cannot be discharged cleanly, and improving the sludge discharge effect.

[0006] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0007] The present invention provides an aeration tank mud discharge device for sewage treatment capable of separating solid wastes, which is arranged on the aeration tank, and has a mud discharge port at the center of the bottom of the aeration tank. A plurality of aeration tubes are evenly distributed on the inner lower half of the aeration tank, and a plurality of aeration plates are evenly spaced on each aeration tube, including a lifting frame, a pool side drainage mechanism, a first centralized guiding mechanism, a second centralized guiding mechanism and a range adjustment mechanism; the lifting frame is horizontally arranged inside the aeration tank, and the lifting frame can move vertically in the aeration tank, and a plurality of strips are evenly spaced on the lifting frame; there are two pool side drainage mechanisms, and the two pool side drainage mechanisms are symmetrically arranged on both sides of the lifting frame and located on the corresponding strips; the first centralized guiding mechanism and the second centralized guiding mechanism each have a plurality of, The first centralized guiding mechanism and the second centralized guiding mechanism have the same structure. A plurality of first centralized guiding mechanisms and a plurality of second centralized guiding mechanisms are symmetrically arranged between the two pool side drainage mechanisms and are located on the corresponding strips. Each first centralized guiding mechanism and each second centralized guiding mechanism guide the sludge flow in a direction toward the sludge discharge port. There are a plurality of range adjustment mechanisms, and the number of the range adjustment mechanisms is equal to the sum of the number of the first centralized guiding mechanisms and the second centralized guiding mechanisms. The plurality of range adjustment mechanisms are respectively arranged on the strips of the first centralized guiding mechanism and the second centralized guiding mechanism. The first centralized guiding mechanism and the second centralized guiding mechanism are respectively connected with the corresponding range adjustment mechanisms. A lifting drive for driving the lifting frame to move is installed on the top of the aeration tank.

[0008] Preferably, the pool side drainage mechanism includes a first disc cover and a first air pipe; there are a plurality of first disc covers, the number of which is equal to the number of aeration discs in a row on the side of the aeration tank, each first disc cover is fixed on the slat with the cover opening facing downward, and each first disc cover corresponds to an aeration disc; there are a plurality of first air pipes, the number of which is equal to the number of first disc covers, one end of each first air pipe is connected to a first disc cover, and the other end of each first air pipe is connected to the side of the lifting frame, and the side of the lifting frame is provided with air holes for ventilation of the first air pipes.

[0009] Preferably, the first centralized guiding mechanism includes a second disk cover, a second air pipe, an axle rod and a movable spraying member; there are a plurality of second disk covers, the number of which is equal to the number of first disk covers, each second disk cover is fixed on the strip with the cover opening facing downward, and each second disk cover corresponds to an aeration disk; there are a plurality of second air pipes, the number of which is equal to the number of second disk covers, and one end of each second air pipe is connected to a second disk cover; there are a plurality of axles, the number of which is equal to the number of second air pipes, and the plurality of axles are arranged on the strip in a vertical state at equal intervals and rotatably, the axles are hollow in structure, and the other end of each second air pipe is connected to the upper end of the corresponding axle rod; there are a plurality of movable spraying members, each of which has a movable spraying member on both sides, and the plurality of movable spraying members can move on the strip along its length direction, a double-tube joint is provided at the lower end of each axle rod, and a connecting hose is provided between each double-tube joint and the corresponding two movable spraying members.

[0010] Preferably, the movable spraying member comprises a sliding sleeve and a spray head; the sliding sleeve is slidably mounted on the strip; the spray head is fixedly arranged at the lower end of the sliding sleeve, and the connecting hose is connected to the spray head.

[0011] Preferably, the nozzle of the nozzle is flat and inclined toward the bottom of the aeration tank.

[0012] Preferably, the range adjustment mechanism includes a two-way connecting member and a synchronous driving member; there are a plurality of two-way connecting members, a two-way connecting member is provided between every two corresponding sliding sleeves, and each sliding sleeve is cooperatively connected with the corresponding two-way connecting member; the synchronous driving member is arranged on the strip, and each two-way connecting member is transmission-connected with the synchronous driving member.

[0013] Preferably, the bidirectional connecting member includes a push block, a cam and a connecting rod; there are two push blocks, which are respectively fixed on a sliding sleeve and located at the bottom of the strip; the cam fixing sleeve is arranged at the lower end of the shaft; there are two connecting rods, one end of each connecting rod is respectively axially connected to a push block, and the other end of each connecting rod is respectively axially connected to one end of the cam.

[0014] Preferably, the synchronous drive member includes a gear and a rack; there are a plurality of gears, the number of which is equal to the number of shafts, and each gear is fixedly mounted on the upper end of a shaft; the rack is arranged on the side of a plurality of gears along the length direction of the strip, and each gear is meshed with the rack; a slide rail is fixedly provided on one side of the lifting frame, and one end of the rack is slidably installed in the slide rail; an electric screw is provided on the lifting frame and on the side opposite to the slide rail, and a connecting strip is provided at the other end of the rack, and the connecting strip is threadedly connected to the electric screw.

[0015] Preferably, a plurality of guide rails are vertically installed at the edge of the aeration tank, a slider is slidably provided in each guide rail, the side of the lifting frame is fixed on the slider, and the lifting frame is provided with lifting ropes connected to the lifting drive transmission all around.

[0016] The present invention also provides a method for discharging sludge from an aeration tank capable of separating solid waste for sewage treatment, comprising the following steps:

[0017] S1, start the lifting drive to drive the lifting frame to move down into the aeration tank;

[0018] S2, until each of the first disk cover and the second disk cover is respectively covered on the corresponding aeration disk, the lifting drive is turned off and the movement of the lifting frame is stopped;

[0019] S3, through the first air pipe to guide the gas, flush the sludge on the edge of the aeration tank;

[0020] S4, guiding the gas through the second gas pipe and spraying it along the corresponding movable spraying member, so as to flush the sludge at the bottom of the aeration tank to the sludge discharge port;

[0021] S5, driving the movable spraying member to move through the range adjustment mechanism to increase the flushing range;

[0022] S6, discharge the sludge from the aeration tank along the sludge discharge port through the existing sludge suction pump.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present application utilizes the aeration disk to emit gas through the pool side drainage mechanism, the first centralized guiding mechanism and the second centralized guiding mechanism, thereby guiding the emitted gas to the pool side and the pool bottom, causing the sludge to be flushed toward the sludge discharge port, thereby achieving the comprehensive discharge of the sludge in the aeration tank, avoiding the situation where a large amount of sludge is attached to the aeration tank and cannot be discharged cleanly, and improving the sludge discharge effect.

[0025] The present application achieves the goal of guiding the gas ejected from the aeration disk to be ejected from the air holes by covering the aeration disk with the first disk cover and connecting the first disk cover and the air holes with the first air pipe, thereby flushing the sludge at the edge of the aeration tank, avoiding the situation where a large amount of sludge at the edge of the aeration tank adheres to it, and improving the sewage discharge effect.

[0026] The present application covers the aeration disk through the second disk cover, and guides the ejected gas toward the movable ejection member through the second air pipe, thereby prompting the movable ejection member to eject the gas toward the bottom of the aeration tank, thereby achieving the flushing of the sludge at the bottom of the aeration tank toward the sludge discharge port, completing the discharge of the sludge and improving the sludge discharge effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0028] Figure 1 It is a three-dimensional structural schematic diagram of the present application;

[0029] Figure 2 is a top view of the present application;

[0030] Figure 3 yes Figure 2 A local three-dimensional structure cross-sectional view at AA;

[0031] Figure 4 It is a three-dimensional structural schematic diagram of the mud discharge device;

[0032] Figure 5 yes Figure 4 A top view of

[0033] Figure 6 yes Figure 5 Cross-sectional view at BB;

[0034] Figure 7 yes Figure 6 An enlarged schematic diagram of point C;

[0035] Figure 8 It is a three-dimensional structural diagram of the first set of guiding mechanisms;

[0036] Fig. 9 It is a partial three-dimensional structural diagram of the first concentrated guiding mechanism;

[0037] Fig.10 yes Fig. 9 Left view of

[0038] Fig.11 yes Fig.10 Cross-sectional view at DD;

[0039] Fig.12 It is a flow chart of the method of this application.

[0040] The numbers in the figure are:

[0041] 1- aeration tank; 11- mud outlet; 12- aeration pipe; 13- aeration plate; 14- guide rail; 141- slider;

[0042] 2-lifting frame; 21-slats; 22-air holes; 23-hanging ropes;

[0043] 3- Poolside drainage mechanism;

[0044] 31- first plate cover;

[0045] 32 - first trachea;

[0046] 4- The first centralized guiding mechanism;

[0047] 41 - second plate cover;

[0048] 42 - second trachea;

[0049] 43-shaft rod; 431-double pipe joint; 432-connecting hose;

[0050] 44- movable spraying member; 441- sliding sleeve; 442- spray head;

[0051] 5-Second centralized guidance agency;

[0052] 6-Range adjustment mechanism;

[0053] 61-bidirectional connecting piece; 611-push block; 612-cam; 613-connecting rod;

[0054] 62-synchronous driving member; 621-gear; 622-rack; 6221-connecting bar; 623-slide rail; 624-electric screw;

[0055] 7-Lifting drive. DETAILED DESCRIPTION

[0056] 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.

[0057] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] See also Figure 1-Figure 12 As shown, an aeration tank sludge discharge device for separating solid waste for sewage treatment is arranged on an aeration tank 1, a mud discharge port 11 is provided at the center of the bottom of the aeration tank 1, a plurality of aeration tubes 12 are evenly distributed on the inner lower half of the aeration tank 1, and a plurality of aeration plates 13 are evenly spaced on each aeration tube 12, including a lifting frame 2, a pool side drainage mechanism 3, a first centralized guiding mechanism 4, a second centralized guiding mechanism 5 and a range adjustment mechanism 6; the lifting frame 2 is horizontally arranged inside the aeration tank 1, the lifting frame 2 can move vertically in the aeration tank 1, and a plurality of strips 21 are evenly spaced on the lifting frame 2; there are two pool side drainage mechanisms 3, and the two pool side drainage mechanisms 3 are symmetrically arranged on both sides of the lifting frame 2 and located on the corresponding strips 21; the first centralized guiding mechanism 4 and the second centralized guiding mechanism 5 each have a plurality of The first centralized guiding mechanism 4 and the second centralized guiding mechanism 5 have the same structure. A plurality of first centralized guiding mechanisms 4 and a plurality of second centralized guiding mechanisms 5 are symmetrically arranged between the two pool side drainage mechanisms 3 and are located on the corresponding strips 21. The direction in which each first centralized guiding mechanism 4 and each second centralized guiding mechanism 5 guides the sludge flow is toward the sludge discharge port 11. There are a plurality of range adjustment mechanisms 6, and the number of the range adjustment mechanisms 6 is equal to the sum of the number of the first centralized guiding mechanisms 4 and the second centralized guiding mechanisms 5. The plurality of range adjustment mechanisms 6 are respectively arranged on the strips 21 of the first centralized guiding mechanism 4 and the second centralized guiding mechanism 5. The first centralized guiding mechanism 4 and the second centralized guiding mechanism 5 are respectively connected with the corresponding range adjustment mechanisms 6. A lifting drive 7 for driving the lifting frame 2 to move is installed on the top of the aeration tank 1.

[0059] When the aeration tank 1 is treating sewage normally, the aeration pipe 12 guides the gas to each aeration plate 13, and then the gas is ejected upward through each aeration plate 13, and the sludge is subsequently precipitated. When the sludge is discharged from the aeration tank 1, first, the lifting drive 7 is started to drive the lifting frame 2 to move down from the top of the aeration tank 1 to the inside of the aeration tank 1 until each pool side drainage mechanism 3 is docked with the corresponding aeration plate 13, each first centralized guiding mechanism 4 and each second centralized guiding mechanism 5 are docked with the corresponding aeration plate 13, the lifting drive 7 is closed, and the movement of the lifting frame 2 is stopped. The pool side drainage mechanism 3 guides the gas ejected from the aeration plate 13 to the pool side of the aeration tank 1, so that the sludge at the pool side is flushed. To the bottom of the aeration tank 1, each first centralized guiding mechanism 4 and each second centralized guiding mechanism 5 respectively guide the gas ejected by the aeration disk 13 on both sides of the mud discharge port 11 to the bottom of the aeration tank 1, so that the sludge at the bottom of the aeration tank 1 is flushed toward the mud discharge port 11. In the process of the first centralized guiding mechanism 4 and the second centralized guiding mechanism 5 flushing the mud at the bottom of the aeration tank, the range adjustment mechanism 6 drives the first centralized guiding mechanism 4 and the second centralized guiding mechanism 5 to move in the aeration tank 1 to increase the flushing range. Finally, the sludge is discharged along the mud discharge port 11 through the existing mud suction pump, thereby achieving the effect of comprehensive mud discharge in the aeration tank 1, avoiding the situation that a large amount of sludge attached to the inside of the aeration tank 1 cannot be discharged cleanly, and improving the mud discharge effect.

[0060] See also Figure 6-Figure 8 As shown, the pool side drainage mechanism 3 includes a first disc cover 31 and a first air pipe 32; there are a plurality of first disc covers 31, the number of which is equal to the number of a row of aeration discs 13 on the side of the aeration tank 1, each first disc cover 31 is fixed on the slat 21 with the cover opening facing downward, and each first disc cover 31 corresponds to an aeration disc 13; there are a plurality of first air pipes 32, the number of which is equal to the number of first disc covers 31, one end of each first air pipe 32 is connected to a first disc cover 31, and the other end of each first air pipe 32 is connected to the side of the lifting frame 2, and the side of the lifting frame 2 is provided with air holes 22 for ventilation of the first air pipe 32.

[0061] When the lifting frame 2 moves down to its position, all the first disc covers 31 of the pool side drainage mechanism 3 cover the corresponding aeration discs 13 respectively. Due to the connection between the first air pipe 32, the first disc cover 31 and the air hole 22 on the lifting frame 2, the gas sprayed from the aeration disc 13 flows along the first air pipe 32 to the air hole 22. Therefore, the sludge at the edge of the aeration tank 1 is washed to the bottom of the tank under the action of the air rush, thereby achieving the effect of removing the sludge at the edge of the aeration tank 1.

[0062] See also Figure 8-Figure 10As shown, the first centralized guiding mechanism 4 includes a second disc cover 41, a second air pipe 42, a shaft 43 and a movable spraying member 44; there are a plurality of second disc covers 41, the number of which is equal to the number of first disc covers 31, each second disc cover 41 is fixed on the strip plate 21 with the cover opening facing downward, and each second disc cover 41 corresponds to an aeration disc 13; there are a plurality of second air pipes 42, the number of which is equal to the number of second disc covers 41, and one end of each second air pipe 42 is connected to a second disc cover 41; there are a plurality of shafts 43, the number of which is equal to the number of second disc covers 41. The number of air pipes 42, a plurality of shafts 43 are equidistantly and rotatably arranged on the strip 21 in a vertical state, the shafts 43 are hollow in structure, and the other end of each second air pipe 42 is connected to the upper end of the corresponding shaft 43; there are a plurality of movable spraying parts 44, each shaft 43 has a movable spraying part 44 on both sides, and the plurality of movable spraying parts 44 can move along the length direction on the strip 21, a double-tube joint 431 is provided at the lower end of each shaft 43, and a connecting hose 432 is provided between each double-tube joint 431 and the corresponding two movable spraying parts 44.

[0063] When the lifting frame 2 moves down to its position, all the second disc covers 41 of the first centralized guiding mechanism 4 and the second centralized guiding mechanism 5 are respectively covered on the corresponding aeration discs 13. Since each second disc cover 41 is connected to the corresponding movable spraying member 44 through the second air pipe 42 and the connecting hose 432, the gas sprayed from the aeration disc 13 is then guided into the corresponding movable spraying member 44. The movable spraying member 44 guides the gas to spray toward the bottom of the aeration tank 1, causing the sludge at the bottom of the tank to be flushed toward the mud discharge port 11, thereby achieving the effect of guiding the sludge at the bottom of the aeration tank 1 toward the mud discharge port 11.

[0064] See also Fig. 9 As shown, the movable spraying member 44 includes a sliding sleeve 441 and a spray head 442 ; the sliding sleeve 441 is slidably mounted on the strip plate 21 ; the spray head 442 is fixedly arranged at the lower end of the sliding sleeve 441 , and the connecting hose 432 is connected to the spray head 442 .

[0065] When the range adjustment mechanism 6 adjusts the jet range of the two nozzles 442, under the drive of the range adjustment mechanism 6, the two sleeves 441 slide back and forth relatively on the slats 21, so that the gas sprayed from the nozzles 442 can act on the bottom of the aeration tank 1 in a large range, prompting the sludge to be guided more comprehensively and faster toward the direction of the sludge discharge port 11, thereby achieving the effect of comprehensive sludge discharge.

[0066] See also Figure 6 and Fig.10 As shown, the nozzle of the nozzle 442 is flat, and the nozzle of the nozzle 442 is inclined toward the bottom of the aeration tank 1.

[0067] When the nozzle 442 sprays gas, since the nozzle 442 has a flat nozzle and is tilted toward the bottom of the pool, the nozzle is facing the mud discharge port 11. Therefore, the sprayed gas flushes the bottom of the pool, causing the sludge to flow effectively toward the mud discharge port 11, thereby achieving the effect of guiding the sludge correctly toward the mud discharge port 11.

[0068] See also Figure 8 and Fig. 9 As shown, the range adjustment mechanism 6 includes a two-way connecting member 61 and a synchronous driving member 62; there are a plurality of two-way connecting members 61, and a two-way connecting member 61 is provided between every two corresponding sliding sleeves 441, and each sliding sleeve 441 is matched and connected with the corresponding two-way connecting member 61; the synchronous driving member 62 is arranged on the strip plate 21, and each two-way connecting member 61 is transmission connected with the synchronous driving member 62.

[0069] When the range adjustment mechanism 6 adjusts the spray range of the nozzle 442, the synchronous driving member 62 drives all the two-way connecting members 61 connected thereto to operate. Under the operation of the two-way connecting member 61, the two sliding sleeves 441 connected thereto slide relatively on the slat 21, so that the nozzle 442 can apply the sprayed gas to a larger range, thereby achieving the effect of fully discharging the sludge at the bottom of the pool.

[0070] See also Fig.11 As shown, the bidirectional connecting member 61 includes a push block 611, a cam 612 and a connecting rod 613; there are two push blocks 611, which are respectively fixed on a sliding sleeve 441 and located at the bottom of the strip 21; the cam 612 is fixedly sleeved on the lower end of the shaft 43; there are two connecting rods 613, one end of each connecting rod 613 is respectively axially connected to a push block 611, and the other end of each connecting rod 613 is respectively axially connected to one end of the cam 612.

[0071] When the synchronous driving member 62 drives the two-way connecting member 61 to move, the shaft 43 rotates, driving the cam 612 to rotate. Since each sliding sleeve 441 is connected to the corresponding push block 611 through the connecting rod 613, the rotation of the cam 612 drives the two sliding sleeves 441 to move back and forth relative to each other, thereby increasing the spraying range of the nozzle 442 on the bottom of the pool.

[0072] See also Figure 8As shown, the synchronous driving member 62 includes a gear 621 and a rack 622; there are a plurality of gears 621, the number of which is equal to the number of shafts 43, and each gear 621 is fixedly sleeved on the upper end of a shaft 43; the rack 622 is arranged on the side of a plurality of gears 621 along the length direction of the strip 21, and each gear 621 is meshed with the rack 622; a slide rail 623 is fixedly provided on one side of the lifting frame 2, and one end of the rack 622 is slidably installed in the slide rail 623; an electric screw 624 is provided on the lifting frame 2 and on the side opposite to the slide rail 623, and a connecting strip 6221 is provided on the other end of the rack 622, and the connecting strip 6221 is threadedly connected to the electric screw 624.

[0073] When the synchronous drive member 62 is started, the electric screw 624 drives the rack 622 to move back and forth in the slide rail 623. Since the gear 621 on each shaft 43 is engaged with the rack 622, all the gears 621 matched with the rack 622 rotate simultaneously. The rotation of the gear 621 drives the cam 612 to rotate, and finally promotes the relative sliding of the two sleeves 441.

[0074] See also Figure 3 and Figure 6 As shown, a plurality of guide rails 14 are vertically installed at the edge of the aeration tank 1, a slider 141 is slidably provided in each guide rail 14, the side of the lifting frame 2 is fixed on the slider 141, and lifting ropes 23 connected to the lifting drive 7 are provided around the lifting frame 2.

[0075] When the lifting drive 7 is started, the lifting drive 7 reels in the lifting rope 23, prompting the lifting frame 2 to slide in the guide rail 14 through the slider 141, thereby completing the lifting movement of the lifting frame 2. Under normal conditions, the lifting frame 2 is at the bottom of the aeration tank 1 and does not affect the treatment of sewage by the aeration tank 1. When discharging sludge, the lifting frame 2 moves down into the sewage, and the sludge is discharged in a concentrated manner toward the sludge discharge port 11 through the pool side drainage mechanism 3, the first centralized guiding mechanism 4 and the second centralized guiding mechanism 5.

[0076] See also Fig.12 As shown, the method for discharging sludge from an aeration tank capable of separating solid waste for sewage treatment comprises the following steps:

[0077] S1, start the lifting driver 7 to drive the lifting frame 2 to move down into the aeration tank 1;

[0078] S2, until each of the first disk cover 31 and the second disk cover 41 is respectively covered on the corresponding aeration disk 13, the lifting drive 7 is turned off, and the movement of the lifting frame 2 is stopped;

[0079] S3, the sludge at the edge of the aeration tank 1 is flushed away by guiding the gas through the first air pipe 32;

[0080] S4, the gas is guided by the second gas pipe 42 and sprayed along the corresponding movable spraying member 44, so that the sludge at the bottom of the aeration tank 1 is flushed to the sludge discharge port 11;

[0081] S5, driving the movable spraying member 44 to move through the range adjustment mechanism 6 to increase the flushing range;

[0082] S6, the sludge is discharged from the aeration tank 1 along the sludge discharge port 11 through the existing sludge suction pump.

[0083] The present application utilizes the aeration plate 13 to emit gas through the pool side drainage mechanism 3, the first centralized guiding mechanism 4 and the second centralized guiding mechanism 5, thereby guiding the emitted gas to the pool side and the pool bottom, causing the sludge to be flushed toward the sludge discharge port 11, avoiding the situation where a large amount of sludge is attached to the aeration tank 1 and cannot be discharged cleanly, thereby improving the sludge discharge effect.

[0084] Finally, it should be noted that the above 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, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An aeration tank sludge discharge device for separating solid waste for sewage treatment, arranged on an aeration tank (1), having a sludge discharge port (11) at the center of the bottom of the aeration tank (1), a plurality of aeration pipes (12) evenly distributed on the inner lower half of the aeration tank (1), and a plurality of aeration plates (13) evenly spaced on each aeration pipe (12), characterized in that: The aeration tank mud discharge device for sewage treatment capable of separating solid waste further comprises a lifting frame (2), a pool side drainage mechanism (3), a first centralized guiding mechanism (4), a second centralized guiding mechanism (5) and a range adjustment mechanism (6); The lifting frame (2) is horizontally arranged inside the aeration tank (1), and the lifting frame (2) can move vertically inside the aeration tank (1). A plurality of strips (21) are installed on the lifting frame (2) at equal intervals. There are two poolside drainage mechanisms (3), and the two poolside drainage mechanisms (3) are symmetrically arranged on both sides of the lifting frame (2) and located on corresponding strips (21); There are a plurality of first centralized guiding mechanisms (4) and a plurality of second centralized guiding mechanisms (5), the first centralized guiding mechanisms (4) and the second centralized guiding mechanisms (5) have the same structure, the plurality of first centralized guiding mechanisms (4) and the plurality of second centralized guiding mechanisms (5) are symmetrically arranged between the two pool side drainage mechanisms (3) and are located on corresponding strips (21), and the direction in which each first centralized guiding mechanism (4) and each second centralized guiding mechanism (5) guides the sludge flow is towards the sludge discharge port (11); There are a plurality of range adjustment mechanisms (6), the number of which is equal to the total number of the first centralized guiding mechanism (4) and the second centralized guiding mechanism (5), the plurality of range adjustment mechanisms (6) are respectively arranged on the strips (21) of the first centralized guiding mechanism (4) and the second centralized guiding mechanism (5), and the first centralized guiding mechanism (4) and the second centralized guiding mechanism (5) are respectively connected to the corresponding range adjustment mechanisms (6); A lifting drive (7) is installed on the top of the aeration tank (1) to drive the lifting frame (2) to move.

2. The aeration tank mud discharge device for sewage treatment capable of separating solid waste according to claim 1, characterized in that: The poolside drainage mechanism (3) comprises a first disc cover (31) and a first air pipe (32); There are a plurality of first disc covers (31), the number of which is equal to the number of aeration discs (13) in a row on the side of the aeration tank (1), each first disc cover (31) is fixed on the strip board (21) with the cover opening facing downward, and each first disc cover (31) corresponds to an aeration disc (13); There are a plurality of first air pipes (32), the number of which is equal to the number of first disc covers (31), one end of each first air pipe (32) is connected to a first disc cover (31), the other end of each first air pipe (32) is connected to the side of the lifting frame (2), and an air hole (22) for ventilation of the first air pipe (32) is provided on the side of the lifting frame (2).

3. The aeration tank mud discharge device for sewage treatment capable of separating solid waste according to claim 2, characterized in that: The first centralized guiding mechanism (4) comprises a second disk cover (41), a second air pipe (42), a shaft (43) and a movable spraying member (44); There are a plurality of second disc covers (41), the number of the second disc covers (41) being equal to the number of the first disc covers (31), each second disc cover (41) being fixed on the strip plate (21) with the cover opening facing downward, and each second disc cover (41) corresponding to an aeration disc (13); There are a plurality of second air pipes (42), the number of the second air pipes (42) being equal to the number of the second disc covers (41), and one end of each second air pipe (42) being in communication with a second disc cover (41); There are a plurality of shaft rods (43), the number of shaft rods (43) being equal to the number of second air pipes (42), the plurality of shaft rods (43) being rotatably arranged on the strip board (21) at equal intervals in a vertical state, the shaft rods (43) being a hollow structure, and the other end of each second air pipe (42) being connected to the upper end of the corresponding shaft rod (43); There are a plurality of movable spraying parts (44), each shaft (43) having a movable spraying part (44) on both sides, the plurality of movable spraying parts (44) being able to move on the strip plate (21) along its length direction, a double-tube joint (431) being provided at the lower end of each shaft (43), and a connecting hose (432) being provided between each double-tube joint (431) and the corresponding two movable spraying parts (44).

4. The aeration tank mud discharge device for sewage treatment capable of separating solid waste according to claim 3, characterized in that: The movable spraying member (44) comprises a sliding sleeve (441) and a spray head (442); The sliding sleeve (441) is arranged on the strip plate (21); The spray head (442) is fixedly arranged at the lower end of the sliding sleeve (441), and the connecting hose (432) is connected to the spray head (442).

5. The aeration tank mud discharge device for sewage treatment capable of separating solid waste according to claim 4, characterized in that: The nozzle of the nozzle (442) is flat, and the nozzle of the nozzle (442) is inclined toward the bottom of the aeration tank (1).

6. The aeration tank mud discharge device for sewage treatment capable of separating solid waste according to claim 5, characterized in that: The range adjustment mechanism (6) comprises a bidirectional connecting member (61) and a synchronous driving member (62); There are a plurality of bidirectional connecting pieces (61), one bidirectional connecting piece (61) is provided between every two corresponding sliding sleeves (441), and each sliding sleeve (441) is matched and connected to the corresponding bidirectional connecting piece (61); The synchronous driving member (62) is arranged on the strip board (21), and each bidirectional connecting member (61) is drivingly connected to the synchronous driving member (62).

7. The aeration tank mud discharge device for sewage treatment capable of separating solid waste according to claim 6, characterized in that: The bidirectional connecting member (61) comprises a push block (611), a cam (612) and a connecting rod (613); There are two push blocks (611), and the two push blocks (611) are respectively fixed on a sliding sleeve (441) and located at the bottom of the strip board (21); The cam (612) is fixedly sleeved on the lower end of the shaft (43); There are two connecting rods (613), one end of each connecting rod (613) is axially connected to a push block (611), and the other end of each connecting rod (613) is axially connected to one end of the cam (612).

8. The aeration tank mud discharge device for sewage treatment capable of separating solid waste according to claim 7, characterized in that: The synchronous driving member (62) comprises a gear (621) and a rack (622); There are a plurality of gears (621), the number of which is equal to the number of shafts (43), and each gear (621) is fixedly sleeved on the upper end of a shaft (43); The rack (622) is arranged beside a plurality of gears (621) along the length direction of the strip plate (21), and each gear (621) is meshed with the rack (622); A slide rail (623) is fixedly provided on one side of the lifting frame (2), and one end of the rack (622) is slidably mounted in the slide rail (623); An electric screw rod (624) is provided on the lifting frame (2) on a side opposite to the slide rail (623), and a connecting bar (6221) is provided on the other end of the rack (622), wherein the connecting bar (6221) is threadedly connected to the electric screw rod (624).

9. The aeration tank mud discharge device for sewage treatment capable of separating solid waste according to claim 8, characterized in that: A plurality of guide rails (14) are vertically installed at the edge of the aeration tank (1), a slider (141) is slidably disposed in each guide rail (14), the side of the lifting frame (2) is fixed on the slider (141), and suspension ropes (23) are provided around the lifting frame (2) for transmission connection with the lifting drive (7).

10. A method for discharging sludge from an aeration tank for treating separable solid waste for sewage treatment, applied to the device for discharging sludge from an aeration tank for treating separable solid waste for sewage treatment as claimed in any one of claims 3 to 9, characterized in that: The following steps are involved: S1, starting the lifting drive (7) to drive the lifting frame (2) to move downward into the aeration tank (1); S2, until each of the first disk cover (31) and the second disk cover (41) is respectively covered on the corresponding aeration disk (13), the lifting drive (7) is turned off, and the movement of the lifting frame (2) is stopped; S3, flushing away the sludge at the edge of the aeration tank (1) by guiding the gas through the first gas pipe (32); S4, guiding the gas through the second gas pipe (42) and spraying it along the corresponding movable spraying member (44), so as to flush the sludge at the bottom of the aeration tank (1) toward the sludge discharge port (11); S5, driving the movable spraying member (44) to move through the range adjustment mechanism (6) to increase the flushing range; S6, the sludge is discharged from the aeration tank (1) along the sludge discharge port (11) through the existing sludge suction pump.

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