Stirring device for sludge buffer pool of waterworks

Abstract

The invention belongs to the technical field of sludge treatment, and discloses a stirring device for a waterworks sludge buffer pool, which is technically characterized by comprising a buffer pool, a fixing frame is fixedly mounted at the top of the buffer pool through a support, a bearing plate is arranged above the buffer pool, a first motor is fixedly mounted on the upper surface of the bearing plate, and a second motor is fixedly mounted on the lower surface of the first motor. A stirring mechanism is arranged on the lower surface of the bearing plate, the stirring mechanism comprises a stirring rod, a positioning assembly and an adjusting assembly, a translation mechanism matched with the bearing plate is arranged on the surface of the fixing frame, and the translation mechanism comprises a transverse translation assembly and a longitudinal translation assembly. The heights of the multiple groups of stirring rods can be conveniently adjusted in the buffer tank, when the stirring rods are located above sludge water, the positions of the stirring rods can be conveniently adjusted, when the stirring rods are located in the sludge, the sludge water can be conveniently stirred, and mud-water layering of the sludge water is effectively avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sludge treatment, and particularly relates to a stirring device for a sludge buffer tank of a waterworks. BACKGROUND

[0002] The process of water treatment in a waterworks includes a key link of sewage treatment. After raw water is treated by an adjusting tank, a raw water pump house, a pre-ozone contact tank and a high-density sedimentation tank, sludge water is formed and enters a buffer tank. Or, backwash water formed by a V-shaped sand filter after water is further treated by the high-density sedimentation tank is sewage with a high sludge content, and also enters the buffer tank. The buffer tank is mainly used for temporarily storing sewage. At this time, the sludge water has a high water content, and the sewage is prone to sludge-water stratification in the buffer tank. A large amount of water is separated from the sludge, which affects subsequent reprocessing of the sludge water.

[0003] A conventional submersible mixer is directly fixed and installed in the buffer tank. Because the mixer stirs at a fixed position and at a fixed angle, the stirring in the buffer tank is insufficient, there is a stirring dead zone, sludge is deposited, and the treatment of the sludge is affected. Moreover, the sludge buffer tank of the waterworks is a receiving buffer tank for sludge. The sludge buffer tank is a semi-underground closed type, and the bottom of the tank has irregular obstacles such as chamfers and suction ports of sludge lifting pumps. The existing conventional mixer cannot adjust the stirring position, the stirring effect is poor, and thus the mixer cannot realize omnidirectional stirring of the sludge buffer tank. SUMMARY

[0004] The present application aims to provide a stirring device for a sludge buffer tank of a waterworks to solve the problems in the background.

[0005] To achieve the above object, the present application provides the following technical scheme. A kind of stirring device for waterworks sludge buffer tank, including buffer tank, the fixed frame is fixedly installed on the top of buffer tank by support, the fixed frame is rectangular ring structure, load-bearing plate is arranged above buffer tank, the first motor is fixedly installed on the upper surface of load-bearing plate, stirring mechanism is arranged on the lower surface of load-bearing plate, stirring mechanism includes stirring rod, positioning assembly and adjusting assembly, positioning assembly is located in the bottom wall of load-bearing plate and is connected with stirring rod, positioning assembly is connected with the first motor, positioning assembly is used to support and position multiple groups of stirring rod below load-bearing plate, adjusting assembly is connected with positioning assembly, adjusting assembly is used to adjust the height of multiple groups of stirring rod in the inner cavity of buffer tank by the way of mutual cooperation with positioning assembly, the surface of fixed frame is provided with translation mechanism that is mutually cooperated with load-bearing plate, translation mechanism includes horizontal translation component and longitudinal translation component, horizontal translation component is located in the inner cavity of fixed frame and is connected with load-bearing plate, horizontal translation component is used to control load-bearing plate to move along horizontal direction, longitudinal translation component is connected with horizontal translation component, longitudinal translation component is used to control load-bearing plate to move along longitudinal direction.

[0006] As a further scheme of the application: the positioning assembly includes a plurality of telescopic tubes arranged below the load-bearing plate, the plurality of telescopic tubes are sequentially sleeved from outside to inside, the adjacent two telescopic tubes are connected in the vertical direction, the top end of the outermost telescopic tube is rotatably installed on the lower surface of the load-bearing plate, the output shaft of the first motor is connected with the outermost telescopic tube, a plurality of vertical grooves are formed on the surface of the telescopic tube, a sliding block is slidably installed in the vertical groove, the top end of the stirring rod is rotatably connected with the sliding block, the bottom end of the vertical groove is provided as an inclined surface structure.

[0007] As a further scheme of the application: the adjusting assembly includes a positioning block arranged in the inner cavity of the innermost telescopic tube, a suspension rope is fixedly installed on the bottom wall of the positioning block, one end of the suspension rope away from the positioning block is connected with the inner bottom wall of the innermost telescopic tube, a winding roller is rotatably installed on the inner top of the outermost telescopic tube, one end of the winding roller is connected with a second motor, a traction rope is wound on the surface of the winding roller, one end of the traction rope away from the winding roller is connected with the surface of the positioning block, the sliding block is made of magnetic material, magnetic blocks are fixedly installed on the top end of the side wall of the telescopic tube and the side wall of the positioning block respectively, which are cooperated with the sliding block.

[0008] As a further scheme of the application: the horizontal translation component includes two groups of oppositely distributed first threaded rods rotatably installed in the inner cavity of the fixed frame, load-bearing blocks are threadedly connected on the surface of the first threaded rods, the load-bearing plate is arranged between the two groups of load-bearing blocks, synchronous toothed discs are fixedly installed on the surface of the first threaded rods, the two groups of synchronous toothed discs are commonly connected with a synchronous belt, one end of one group of first threaded rods extends to the outside of the fixed frame and is connected with a third motor.

[0009] As a further scheme of the present application: the longitudinal translation assembly includes two groups of support rods fixedly installed between the two groups of bearing blocks, the bearing plate is slidingly installed on the surface of the support rod, a second threaded rod is rotatably installed between the two groups of bearing blocks, the second threaded rod is in threaded connection with the bearing plate, and one end of the second threaded rod extends to the outside of the bearing block and is connected with a fourth motor.

[0010] As a further scheme of the present application: a guide assembly is arranged between the two adjacent groups of telescopic cylinders, the guide assembly includes a guide groove formed in the inner side wall of the telescopic cylinder, and a guide block is fixedly installed on the top of the outer side wall of the telescopic cylinder and slidingly installed in the guide groove.

[0011] As a further scheme of the present application: the vertical grooves on the surfaces of the two adjacent groups of telescopic cylinders are distributed in a staggered manner.

[0012] Compared with the prior art, the present application has the following beneficial effects: through the cooperation of the adjusting assembly and the positioning assembly, the height of the plurality of stirring rods in the buffer pool can be conveniently adjusted, the position of the stirring rod can be conveniently adjusted when the stirring rod is above the sludge water, the stirring rod can be moved to each position in the buffer pool, the sludge water can be conveniently stirred and treated when the stirring rod is in the sludge water, the stratification phenomenon in the sludge water is effectively avoided, and when there is an irregular obstacle at the bottom of the buffer pool, the stirring rod in the present application can perform omnidirectional stirring treatment on the sludge water in the buffer pool. The problem of insufficient stirring, stirring dead zone, sludge deposition and influence on sludge treatment caused by the direct fixed installation of the traditional submersible stirrer in the buffer pool is solved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a perspective structural schematic view of the stirring device for the sludge buffer pool of the waterworks provided in the embodiment of the present application.

[0014] Figure 2 It is a front view structural schematic view of the stirring device for the sludge buffer pool of the waterworks provided in the embodiment of the present application.

[0015] Figure 3 It is a schematic view of the bearing plate and its connecting structure in the stirring device for the sludge buffer pool of the waterworks provided in the embodiment of the present application.

[0016] Figure 4 It is a schematic view of the telescopic cylinder and its connecting structure in the stirring device for the sludge buffer pool of the waterworks provided in the embodiment of the present application.

[0017] Figure 5The structural schematic view of the adjusting assembly in the stirring device for the sludge buffer tank of the waterworks provided in the embodiment of the present application.

[0018] Figure 6 The structural schematic view of the stirring rod and the connecting structure thereof in the stirring device for the sludge buffer tank of the waterworks provided in the embodiment of the present application.

[0019] Figure 7 The structural schematic view of the adjusting assembly in the stirring device for the sludge buffer tank of the waterworks provided in the embodiment of the present application. Figure 2 The structural schematic view of the adjusting assembly in the stirring device for the sludge buffer tank of the waterworks provided in the embodiment of the present application.

[0020] Figure 8 The structural schematic view of the adjusting assembly in the stirring device for the sludge buffer tank of the waterworks provided in the embodiment of the present application.

[0021] Wherein: 1-buffer tank, 2-fixed frame, 3-bearing plate, 4-first motor, 5-stirring mechanism, 51-stirring rod, 52-positioning assembly, 521- telescopic cylinder, 522-vertical groove, 523-sliding block, 53-adjusting assembly, 531-positioning block, 532-suspension rope, 533-rolling roller, 534-second motor, 535-pulling rope, 536-magnetic block, 6-translation mechanism, 61-horizontal translation assembly, 611-bearing block, 612-first threaded rod, 613-synchronous toothed disc, 614-synchronous belt, 615-third motor, 62-vertical translation assembly, 621-supporting rod, 622-second threaded rod, 623-fourth motor, 7-guiding assembly, 71-guiding groove, 72-guiding block. DETAILED DESCRIPTION

[0022] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0023] The specific implementation of the present application is described in detail in combination with specific embodiments.

[0024] As Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6The drawing shows the structure diagram of the stirring device for the sewage plant sludge buffer tank provided by one embodiment of the application, including the buffer tank 1, the fixed frame 2 is fixedly installed on the top of the buffer tank 1 through the support, the fixed frame 2 is the rectangular ring structure, the bearing plate 3 is arranged above the buffer tank 1, the first motor 4 is fixedly installed on the upper surface of the bearing plate 3, the stirring mechanism 5 is arranged on the lower surface of the bearing plate 3, the stirring mechanism 5 includes the stirring rod 51, the positioning assembly 52 and the adjusting assembly 53, the positioning assembly 52 is located on the bottom wall of the bearing plate 3 and connected with the stirring rod 51, the positioning assembly 52 is connected with the first motor 4, the positioning assembly 52 is used to support and position the multiple groups of stirring rods 51 below the bearing plate 3, the adjusting assembly 53 is connected with the positioning assembly 52, the adjusting assembly 53 is used to adjust the height of the multiple groups of stirring rods 51 in the inner cavity of the buffer tank 1 through the cooperation with the positioning assembly 52, the surface of the fixed frame 2 is provided with the translation mechanism 6 which cooperates with the bearing plate 3, the translation mechanism 6 includes the horizontal translation assembly 61 and the vertical translation assembly 62, the horizontal translation assembly 61 is located in the fixed frame 2 and connected with the bearing plate 3, the horizontal translation assembly 61 is used to control the bearing plate 3 to move horizontally along the horizontal plane, the vertical translation assembly 62 is connected with the horizontal translation assembly 61, and the vertical translation assembly 62 is used to control the bearing plate 3 to move vertically along the horizontal plane.

[0025] The transverse translation assembly 61 and the longitudinal translation assembly 62 cooperate to support and position the bearing plate 3 above the buffer pool 1. Initially, the positioning assembly 52 and the adjusting assembly 53 cooperate to position the plurality of stirring rods 51, which are located at the top of the buffer pool 1. When conveying sludge water, the sludge water is pumped into the buffer pool 1. The adjusting assembly 53 and the positioning assembly 52 cooperate to control the plurality of stirring rods 51 to move downward into the cavity of the buffer pool 1, and the plurality of stirring rods 51 are located at different depths of the sludge water. The first motor 4 and the positioning assembly 52 cooperate to control the plurality of stirring rods 51 to rotate in the sludge water, so that the stirring rods 51 can comprehensively stir the sludge water. After the sludge water is stirred, the adjusting assembly 53 and the positioning assembly 52 cooperate to control the plurality of stirring rods 51 to move reversely above the sludge water. After the stirring rods 51 move above the sludge water, the transverse translation assembly 61 and the longitudinal translation assembly 62 cooperate to conveniently adjust the position of the stirring rods 51 in the entire cavity of the buffer pool 1. After the stirring rods 51 move to another stirring position, the plurality of stirring rods 51 are controlled to move downward into the sludge water again to rotate and stir. In this way, the sludge water in the cavity of the buffer pool 1 can be comprehensively stirred, the stratification of the sludge water can be effectively avoided during the conveying process, the water in the sludge water cannot be separated out, the reprocessing effect of the sludge water can be improved, and the safety during the conveying process can be improved.

[0026] As shown in Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As a preferred embodiment of the present application, the positioning assembly 52 comprises a plurality of telescopic cylinders 521 arranged below the bearing plate 3. The plurality of telescopic cylinders 521 are sequentially sleeved from outside to inside, and adjacent two telescopic cylinders 521 are connected in sliding mode along the vertical direction. The top end of the outermost telescopic cylinder 521 is rotatably installed on the lower surface of the bearing plate 3. The output shaft of the first motor 4 is connected with the outermost telescopic cylinder 521. A plurality of vertical grooves 522 are formed on the surface of the telescopic cylinder 521. A sliding block 523 is slidably installed in the vertical groove 522. The top end of the stirring rod 51 is rotatably connected with the sliding block 523. The bottom end of the vertical groove 522 is provided with a slope structure.

[0027] At the beginning, the adjusting assembly 53 applies traction force to the innermost telescopic cylinder 521, a plurality of telescopic cylinders 521 are sequentially sleeved from outside to inside, the adjusting assembly 53 controls the sliding block 523 to be at the top of the vertical groove 522, at this time, the stirring rod 51 is entirely in the vertical groove 522. When it is needed to stir the sludge water, the adjusting assembly 53 controls a plurality of telescopic cylinders 521 to sequentially move downwards from inside to outside, the inner telescopic cylinder 521 drives the sliding block 523 on the surface of the outer telescopic cylinder 521 to synchronously move downwards in the vertical groove 522 when moving downwards, the sliding block 523 pushes the stirring rod 51 to the outside of the telescopic sleeve 521 when moving downwards, at this time, the telescopic cylinder 521 drives the stirring rod 51 to synchronously insert into the sludge water, a plurality of stirring rods 51 on the surfaces of a plurality of telescopic cylinders 521 are respectively at different depths of the sludge water, the first motor 4 drives the outermost telescopic cylinder 521 to rotate, the outermost telescopic cylinder 521 drives a plurality of telescopic cylinders 521 to synchronously rotate, the telescopic cylinder 521 drives the stirring rod 51 to synchronously rotate in the sludge water, and the stirring rod 51 can efficiently stir and treat the sludge water. After stirring is completed, the adjusting assembly 53 pulls the telescopic cylinder 521 to vertically move upwards, at this time, a plurality of telescopic cylinders 521 are entirely sleeved from outside to inside, the inner telescopic cylinder 521 drives the sliding block 523 on the surface of the outer telescopic cylinder 521 to synchronously move upwards in the vertical groove 522 when moving upwards, and the sliding block 523 moves to the top of the vertical groove 522, so that the stirring rod 51 entirely moves into the vertical groove 522.

[0028] As shown in Figure 5 , Figure 7 As a preferred embodiment of the present application, the adjusting assembly 53 comprises a positioning block 531 arranged in the inner cavity of the innermost telescopic cylinder 521, a suspension rope 532 is fixedly installed on the bottom wall of the positioning block 531, one end of the suspension rope 532 away from the positioning block 531 is connected with the inner bottom wall of the innermost telescopic cylinder 521, a winding roller 533 is rotatably installed on the inner top of the outermost telescopic cylinder 521, one end of the winding roller 533 is connected with a second motor 534, a traction rope 535 is wound on the surface of the winding roller 533, one end of the traction rope 535 away from the winding roller 533 is connected with the surface of the positioning block 531, the sliding block 523 is made of magnetic material, and magnetic blocks 536 matched with the sliding block 523 are fixedly installed on the top end of the side wall of the telescopic cylinder 521 and the side wall of the positioning block 531 respectively.

[0029] The winding roller 533 winds up the traction rope 535, which suspends and supports the positioning block 531. The positioning block 531 and the suspension rope 532 cooperate to suspend and support the innermost telescopic cylinder 521. The magnetic block 536 on the surface of the inner telescopic cylinder 521 positions the sliding block 523 on the surface of the outer telescopic cylinder 521 through magnetic attraction. The sliding block 523 is located at the top of the vertical groove 522. When it is necessary to stir the sludge water, the second motor 534 drives the winding roller 533 to rotate, and the winding roller 533 unwinds the traction rope 535. The traction rope 535 and the suspension rope 532 cooperate to drive the innermost telescopic cylinder 521 to move vertically downward. The innermost telescopic cylinder 521 drives multiple sets of outer telescopic cylinders 521 to move downward synchronously. After mixing is complete, the second motor 534 drives the winding roller 533 to rotate in the opposite direction. The winding roller 533 winds up the traction rope 535. The traction rope 535 and the suspension rope 532 work together to pull the innermost telescopic cylinder 521 to move vertically upward. The innermost telescopic cylinder 521 drives multiple sets of telescopic cylinders 521 on the outside to move upward synchronously. The multiple sets of telescopic cylinders 521 are once again connected from the inside to the outside as a whole.

[0030] like Figure 2 , Figure 3 As shown, in a preferred embodiment of the present invention, the lateral translation component 61 includes two sets of relatively distributed first threaded rods 612 rotatably mounted in the inner cavity of the fixed frame 2. The surface of the first threaded rod 612 is threadedly connected to a bearing block 611. The bearing plate 3 is disposed between the two sets of bearing blocks 611. A synchronous gear plate 613 is fixedly mounted on the surface of the first threaded rod 612. The two sets of synchronous gear plates 613 are connected to a synchronous belt 614. One end of one set of first threaded rods 612 extends to the outside of the fixed frame 2 and is connected to a third motor 615.

[0031] When it is necessary to adjust the position of the stirring rod 51 to stir the sludge water at different positions in the inner cavity of the buffer tank 1, the third motor 615 drives a set of first threaded rods 612 to rotate, which in turn drives the synchronous gear plate 613 to rotate. The two sets of synchronous gear plates 613 cooperate with the synchronous belt 614 to drive the two sets of first threaded rods 612 to rotate synchronously. The first threaded rods 612 push the bearing block 611 to move laterally in the horizontal plane. The bearing block 611 drives the bearing plate 3 and the stirring rod 51 to move synchronously laterally, so that the position of the stirring rod 51 can be easily adjusted laterally.

[0032] like Figure 2 , Figure 3As shown in the figure, as a preferred embodiment of the present application, the longitudinal translation assembly 62 comprises two sets of support rods 621 fixedly installed between two sets of bearing blocks 611, the bearing plate 3 is slidingly installed on the surface of the support rod 621, and a second threaded rod 622 is rotatably installed between the two sets of bearing blocks 611. The second threaded rod 622 is threadedly connected with the bearing plate 3, and one end of the second threaded rod 622 extends to the outside of the bearing block 611 and is connected with a fourth motor 623.

[0033] When it is necessary to further adjust the position of the stirring rod 51, the fourth motor 623 drives the second threaded rod 622 to rotate, and the second threaded rod 622 pushes the bearing plate 3 to move longitudinally in the horizontal plane. The first threaded rod 612 cooperates with the second threaded rod 622 to adjust the position of the stirring rod 51 in the cavity of the buffer pool 1 in all directions.

[0034] As shown in the figure, Figure 3 , Figure 4 , Figure 8 As a preferred embodiment of the present application, a guide assembly 7 is arranged between the two adjacent sets of telescopic cylinders 521. The guide assembly 7 comprises a guide groove 71 formed in the inner side wall of the telescopic cylinder 521, and a guide block 72 fixedly installed on the top of the outer side wall of the telescopic cylinder 521 and slidingly installed in the guide groove 71.

[0035] When the telescopic cylinder 521 moves in the vertical direction, the guide block 72 moves synchronously in the guide groove 71. When the telescopic cylinder 521 moves downward, the guide block 72 moves to the bottom end of the guide groove 71, and at this time, the multiple sets of telescopic cylinders 521 extend downward one by one and are inserted into the sludge water. When the telescopic cylinder 521 moves upward, the guide block 72 moves to the top end of the guide groove 71, and at this time, the multiple sets of telescopic cylinders 521 are sequentially and integrally sleeved from the outside to the inside.

[0036] As shown in the figure, Figure 6 As a preferred embodiment of the present application, the vertical grooves 522 on the surfaces of the two adjacent sets of telescopic cylinders 521 are distributed in a staggered manner.

[0037] The working principle of the present application is: the sludge water is pumped into the buffer tank 1, during the transmission process, when the sludge water needs to be stirred, the second motor 534 drives the winding roller 533 to rotate, the winding roller 533 unwinds the traction rope 535, the traction rope 535 cooperates with the suspension rope 532 to drive the innermost telescopic cylinder 521 to move vertically downward, the innermost telescopic cylinder 521 drives the outer telescopic cylinder 521 to move downward synchronously. When the inner telescopic cylinder 521 moves downward, the sliding block 523 on the surface of the outer telescopic cylinder 521 moves downward synchronously in the vertical groove 522, the sliding block 523 pushes the stirring rod 51 to the outside of the telescopic sleeve 521 when moving downward, at this time the telescopic cylinder 521 drives the stirring rod 51 to insert into the sludge water synchronously, the stirring rod 51 on the surface of the telescopic cylinder 521 is at different depths of the sludge water, the first motor 4 drives the outermost telescopic cylinder 521 to rotate, the outermost telescopic cylinder 521 drives the telescopic cylinder 521 to rotate synchronously, the telescopic cylinder 521 drives the stirring rod 51 to rotate synchronously in the sludge water, the stirring rod 51 can efficiently stir the sludge water. After stirring, the second motor 534 drives the winding roller 533 to rotate reversely, the winding roller 533 winds the traction rope 535, the traction rope 535 cooperates with the suspension rope 532 to pull the innermost telescopic cylinder 521 to move vertically upward, the innermost telescopic cylinder 521 drives the outer telescopic cylinder 521 to move upward synchronously, at this time the telescopic cylinder 521 is integrally sleeved from outside to inside, when the inner telescopic cylinder 521 moves upward, the sliding block 523 on the surface of the outer telescopic cylinder 521 moves upward synchronously in the vertical groove 522, when the sliding block 523 moves to the top of the vertical groove 522, the stirring rod 51 moves to the vertical groove 522 as a whole.

[0038] When it is necessary to adjust the position of the stirring rod 51 to stir the sludge water at different positions in the buffer tank 1, the third motor 615 drives a group of first threaded rods 612 to rotate and drives the synchronous tooth disc 613 to rotate, the two groups of synchronous tooth discs 613 cooperate with the synchronous belt 614 to drive the two groups of first threaded rods 612 to rotate synchronously, the first threaded rod 612 drives the bearing block 611 to move in the horizontal plane along the transverse direction, the bearing block 611 drives the bearing plate 3 and the stirring rod 51 to move synchronously along the transverse direction, thereby conveniently adjusting the position of the stirring rod 51 along the transverse direction. When it is necessary to further adjust the position of the stirring rod 51, the fourth motor 623 drives the second threaded rod 622 to rotate, the second threaded rod 622 drives the bearing plate 3 to move in the horizontal plane along the longitudinal direction, the first threaded rod 612 cooperates with the second threaded rod 622 to adjust the position of the stirring rod 51 in the buffer tank 1. Such circulation can stir the sludge water in the buffer tank 1 in all directions, which can effectively avoid the stratification of the sludge water during the transmission process, improve the reprocessing effect of the sludge water, and improve the safety during the transmission process.

[0039] While the preferred embodiments of the application have been described above, it will be understood that many modifications and variations will be apparent to those skilled in the art, which do not depart from the true spirit and scope of the present application.

Claims

1. A mixing apparatus for a waterworks sludge buffer tank, comprising a buffer tank, characterized in that The top of the buffer pool is fixedly installed with a fixing frame through a support, the fixing frame is a rectangular ring structure, a bearing plate is arranged above the buffer pool, and a first motor is fixedly installed on the upper surface of the bearing plate; A stirring mechanism is arranged on the lower surface of the bearing plate, and the stirring mechanism comprises a stirring rod, a positioning assembly and an adjusting assembly; The positioning assembly is located on the bottom wall of the bearing plate and connected with the stirring rod, the positioning assembly is connected with the first motor, and the positioning assembly is used to support and position a plurality of stirring rods below the bearing plate; The adjusting assembly is connected with the positioning assembly, and the adjusting assembly is used to adjust the height of the plurality of stirring rods in the inner cavity of the buffer pool through cooperation with the positioning assembly. A translation mechanism is arranged on the surface of the fixing frame and cooperates with the bearing plate, and the translation mechanism comprises a horizontal translation assembly and a vertical translation assembly; The horizontal translation assembly is located in the fixing frame and connected with the bearing plate, and the horizontal translation assembly is used to control the bearing plate to move horizontally along the horizontal plane; The vertical translation assembly is connected with the horizontal translation assembly, and the vertical translation assembly is used to control the bearing plate to move vertically along the horizontal plane.

2. A mixing device for a waterworks sludge buffer tank according to claim 1, characterized in that The positioning assembly comprises a plurality of telescopic cylinders arranged below the bearing plate, the plurality of telescopic cylinders are sequentially sleeved from outside to inside, the adjacent two telescopic cylinders are connected in the vertical direction, the top end of the outermost telescopic cylinder is rotatably installed on the lower surface of the bearing plate, the output shaft of the first motor is connected with the outermost telescopic cylinder, a plurality of vertical grooves are formed in the surface of the telescopic cylinder, a sliding block is slidably installed in the vertical groove, the top end of the stirring rod is rotatably connected with the sliding block, and the bottom end of the vertical groove is provided in the form of an inclined surface.

3. A mixing device for a waterworks sludge holding tank according to claim 2, wherein The adjusting assembly comprises a positioning block arranged in the inner cavity of the innermost telescopic cylinder, a suspension rope is fixedly installed on the bottom wall of the positioning block, one end of the suspension rope away from the positioning block is connected with the inner bottom wall of the innermost telescopic cylinder, a winding roller is rotatably installed on the inner top of the outermost telescopic cylinder, one end of the winding roller is connected with a second motor, the surface of the winding roller winds a traction rope, one end of the traction rope away from the winding roller is connected with the surface of the positioning block, the sliding block is made of magnetic material, and magnetic blocks cooperated with the sliding block are fixedly installed on the top end of the side wall of the telescopic cylinder and the side wall of the positioning block respectively.

4. A mixing device for a waterworks sludge buffer tank according to claim 1, characterized in that The horizontal translation assembly comprises two oppositely distributed first threaded rods rotatably installed in the inner cavity of the fixing frame, bearing blocks are threadedly connected on the surface of the first threaded rods, the bearing plate is arranged between the two bearing blocks, synchronous toothed discs are fixedly installed on the surface of the first threaded rods, the two synchronous toothed discs are jointly connected with a synchronous belt, and one end of one first threaded rod extends to the outside of the fixing frame and is connected with a third motor.

5. A mixing device for a waterworks sludge holding tank according to claim 4, wherein The vertical translation assembly comprises two support rods fixedly installed between the two bearing blocks, the bearing plate is slidably installed on the surface of the support rods, a second threaded rod is rotatably installed between the two bearing blocks, the second threaded rod is threadedly connected with the bearing plate, and one end of the second threaded rod extends to the outside of the bearing block and is connected with a fourth motor.

6. A mixing device for a waterworks sludge holding tank according to claim 2, wherein Between two adjacent groups of telescopic cylinders, a guide assembly is arranged, which comprises a guide groove formed in the inner side wall of the telescopic cylinder, and a guide block fixedly installed on the top of the outer side wall of the telescopic cylinder and slidingly installed in the guide groove.

7. A mixing device for a waterworks sludge holding tank according to claim 2, wherein The vertical grooves on the surfaces of the two adjacent groups of telescopic cylinders are distributed in a staggered manner.

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