Sludge conditioning and stirring treatment device and method capable of automatically scraping wall

Abstract

The invention provides an automatic wall scraping sludge conditioning and stirring treatment device and method, the device comprises: a base, the top of the base is symmetrically and fixedly provided with a vertical first side vertical plate and a vertical second side vertical plate, and one side, close to the second side vertical plate, of the first side vertical plate is integrally provided with a fixed shaft sleeve; the tipping mounting frame is arranged between the first side vertical plate and the second side vertical plate; the treatment method comprises the following steps: quantitatively adding the sludge and the conditioner; a preliminary mixing stage; an enhanced mixing stage; and a wall scraping cleaning and discharging stage. Sludge in the stirring barrel can be mixed through the side wall scraper assembly and the bottom scraper assembly, the bottom scraper assembly can achieve the effect of actively turning over materials in the barrel, the mixing uniformity of the sludge and a conditioner is improved, and the subsequent dewatering effect is enhanced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of engineering waste sludge treatment, in particular to a sludge conditioning and stirring treatment device and method with automatic wall scraping. BACKGROUND

[0002] In construction engineering (such as pile foundation construction, underground continuous wall excavation, shield tunnel, foundation pit dewatering, etc.), a large amount of sludge with special properties will be generated. Such construction sludge usually has the characteristics of high water content (in a flowable or soft plastic state), high viscosity, and complex composition (often containing clay particles, cement hydration products, sand particles, trace amounts of oil and chemical additives). Its treatment and disposal is a key link in the construction process, not only related to environmental protection (avoiding pollution caused by random discharge and disposal), but also directly affecting construction cost and efficiency. Conditioning and modification of such sludge to improve its dewatering performance is a prerequisite for achieving reduction, stabilization and resource utilization (such as for brick making, filling materials, etc.). It is also a key step to improve the dewatering performance of sludge, which usually requires the addition of flocculants, lime, cement and other conditioning agents, and uniform mixing through stirring. Due to the high viscosity, easy adhesion to the inner wall of the equipment, and other characteristics of the sludge, traditional stirring equipment often has problems such as uneven mixing, difficult cleaning, low efficiency, etc., which affects the subsequent dewatering effect and increases the operating cost.

[0003] Due to the high viscosity, high water holding capacity, and easy adhesion of the sludge itself, it is common to draw on the experience of municipal sludge treatment or concrete mixing and use conventional stirring tanks, paddle type or simple stirring equipment with a simple scraper. However, the unique properties of construction sludge pose serious challenges to these existing technologies in actual application: 1) Uneven mixing: dead zones in stirring lead to insufficient contact between conditioning agents and sludge, affecting conditioning effect; 2) Difficult to clean: sludge is easily adhered to the inner wall of the stirring barrel, stirring shaft and blade, forming stubborn residues, not only reducing the effective volume and affecting the quality between batches, but also increasing the cleaning difficulty and labor cost; 3) Low efficiency: fixed scrapers or simple stirring structures cannot cope with the rheological properties of the sludge, especially when dealing with sludge that is prone to setting or contains dry powder conditioning agents, the mixing efficiency is low.

[0004] To solve the problem of simultaneous scraping and cleaning of the material adhering to the inner wall of the stirring barrel during sludge conditioning and improve the mixing effect, there are patent documents such as CN218530542U on the market.

[0005] Patent document CN218530542U discloses a mixing and stirring device for sludge treatment, which realizes the up and down scraping and cleaning of the inner wall of the stirring cylinder by the cooperation of the first, second and third connecting rods and the scraping ring. The vibration generated by the cross linkage shaft and the impact disc helps to remove the adhered sludge. At the same time, the stirring block on the third connecting rod stirs synchronously during the scraping process, so as to solve the problem of insufficient mixing of sludge and catalyst.

[0006] However, in actual use, the patent has significant deficiencies in cleaning and mixing efficiency when facing high-viscosity and hardening sludge treatment scenarios. Specifically, 1. The core cleaning component of the patent document is the scraping ring which is sleeved on the central rotating shaft. Its movement trajectory is limited by the moving groove and the limiting groove. Essentially, it is "revolution" and limited "up and down movement" with the shaft center as the reference. In actual use, this movement mode cannot effectively cover all areas of the inner wall of the stirring barrel, especially the connection between the barrel bottom and the sidewall (the transition curved surface) and any non-smooth structure on the sidewall. The rigid structure of the scraping ring cannot adaptively fit these complex curved surfaces, resulting in inevitable residues after cleaning. This leads to the fact that when the sludge adheres to the sidewall, the proposed scraping ring can only scrape to the highest or lowest point of the sidewall, and cannot scrape the material off the sidewall slope. The material at the center of the barrel bottom is also prone to deposition and hardening due to the lack of effective scraping mechanism.

[0007] 2. The proposed stirring function is completed by the fixed stirring block, and the cleaning function is completed by the scraping ring. Although both are running at the same time, they are not functionally related. This design is effective for uniformly mixed fluids, but ineffective for initially input dry powder, easy-to-clump materials, or thick sludge that has already settled. The stirring block cannot touch and break up the hardened layer that clings to the barrel bottom and wall. In actual use, although the scraping ring can scrape off some of the material, it lacks an effective "collection" and "lifting" mechanism to rethrow the scraped sediment into the main fluid for remixing. The local vibration generated by the impact disc has little effect on breaking up solid clumps or sediment layers. This leads to the fact that if the catalyst is in powder form, it is easy to clump with the surface sludge and sink to the bottom after being input. After the device is running, there is a layer of hardened sludge at the bottom of the barrel that has not been mixed with the catalyst, ultimately leading to incomplete reaction. SUMMARY

[0008] To overcome the deficiencies of the prior art, the present application provides an automatic wall scraping sludge conditioning and stirring treatment device and method, which solves the problems mentioned in the background art.

[0009] To achieve the above object, the present application is implemented by the following technical solutions: The automatic wall scraping sludge conditioning and stirring treatment device comprises: The rack assembly; the tipping mounting frame is arranged on the rack assembly, one end of which is hinged to the rack assembly, and the other end is rotationally connected, and the tipping mounting frame is connected with an inclination adjusting mechanism; the stirring barrel is rotationally installed on the tipping mounting frame through a rotating shaft, one end of the stirring barrel is an open end and is provided with a mud inlet pipe, and the inner side wall of the stirring barrel is provided with a plurality of mixing reinforcing rib plates in an annular array, and a main shaft center hole is formed in the rotating shaft; the main driving mechanism is installed on the rack assembly and is used for driving the stirring barrel to rotate; the center rotating rod is movably penetrated through the main shaft center hole and extends into the stirring barrel; the side wall scraper assembly is installed on the center rotating rod and is used for scraping the inner side wall of the stirring barrel and the surface of the mixing reinforcing rib plate and stirring the material; the bottom scraper assembly is installed on the center rotating rod and is used for scraping the bottom wall of the stirring barrel and turning over the material; the side wall scraper assembly comprises symmetrically arranged scraper units, and each scraper unit comprises a radially distributed telescopic arm assembly and a scraper mounting frame driven by the telescopic arm; the scraper mounting frame is provided with a side wall scraper plate through an elastic pressing assembly, so that the side wall scraper plate is self-adaptively pressed against the barrel wall; the bottom scraper assembly comprises a bottom scraper base fixed to the center rotating rod and an adjustable arc-shaped scraper slidingly arranged on the bottom scraper base; the adjustable arc-shaped scraper is connected with a scraper hydraulic oil cylinder for driving the adjustable arc-shaped scraper to slide to change the curvature, so that the adjustable arc-shaped scraper forms a spoon-shaped structure to realize the scraping and throwing of the material.

[0010] As a second aspect of the present application, a sludge conditioning and stirring treatment method with automatic wall scraping is provided, comprising the steps of: Sludge and conditioning agent quantitative addition: the sludge or liquid / solid conditioning agent is weighed in a quantitative hopper, and then is sent into the stirring barrel through a guide plate and a mud inlet pipe; Primary mixing stage: the side wall scraper assembly is retracted, low-speed stirring is performed, the inclination of the stirring barrel is adjusted to make the material accumulate, the adjustable arc-shaped scraper is driven to form a spoon-shaped structure and rotate to realize the turning and throwing of the bottom material, and low-speed mixing is performed until the material is preliminarily uniform to avoid damaging the sludge floc structure; Intensive mixing stage: the stirring barrel is reset to be horizontal, the conditioning agent or water is quantitatively supplemented, low-speed preliminary mixing is performed, then high-speed stirring is switched on, and the side wall scraper plate is driven to assist in mixing, high-speed stirring enhances the shearing to promote the full contact and reaction of the conditioning agent and the sludge; Wall scraping and discharging stage: the low-speed mode is switched on, the side wall scraper plate is unfolded to adhere to the barrel wall, the center rotating rod is stopped, and the wall is scraped by relying on the rotation of the stirring barrel, at the same time, the bottom scraper base cleans the bottom, after a certain time of wall scraping and stirring, the mixing is completed, the sludge after treatment is discharged through the mud inlet pipe by tilting the stirring barrel, and subsequent dewatering treatment is prepared.

[0011] The present application provides a sludge conditioning and stirring treatment device and method with automatic wall scraping. 1. To solve the problem that sludge is easy to adhere to the barrel wall and form dead angles, resulting in uneven mixing, the application sets up a bottom scraper assembly and a sidewall scraper assembly that work together, realizing all-around dynamic scraping and cleaning of the barrel wall, and the elastic compression design of the sidewall scraper plate can self-adaptively fit the barrel wall and the surface of the mixing reinforced rib plate, completely eliminating cleaning dead angles; the bottom scraper base cooperates with the adjustable arc-shaped scraper, which can not only clean the barrel bottom but also form a spoon-shaped structure through deformation, realizing active turning and throwing of the bottom deposited sludge, and significantly improving mixing uniformity and conditioning effect; 2. To solve the demand for stirring intensity at different stages in the sludge conditioning process, the application realizes flexible switching between low-speed preliminary mixing and high-speed intensive mixing through a double-speed adjustable main drive mechanism, the low-speed mode is beneficial to the dispersion of conditioners without destroying the floc, and the high-speed mode can enhance the shearing action to promote the full contact of conditioners and sludge, thereby optimizing the conditioning effect and facilitating subsequent dewatering. DETAILED DESCRIPTION

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, a brief introduction will be given to the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only some embodiments of the application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0013] Figure 1 The three-dimensional structure schematic diagram of the application is shown; Figure 2 The installation structure schematic diagram of the tilting mounting frame of the application is shown; Figure 3 The installation structure schematic diagram of the main drive mechanism of the application is shown; Figure 4 The installation structure schematic diagram of the first drive motor of the application is shown; Figure 5 The installation structure schematic diagram of the fixed base of the application is shown; Figure 6 The installation structure explosion schematic diagram of the push plate of the application is shown; Figure 7 The installation structure schematic diagram of the adjusting mechanism of the application is shown; Figure 8 The installation structure schematic diagram of the Figure 7 The enlarged view of A in the application is shown; Figure 9 The installation structure schematic diagram of the sidewall scraper assembly and the telescopic arm assembly of the application is shown; Figure 10 The installation structure schematic diagram of the push plate containing cavity and the rib plate end stop of the application is shown; Figure 11The installation structure diagram of the scraper arm hole sealing block of the present application is shown. Figure 12 The structure diagram of the bottom scraper assembly of the present application is shown. Figure 13 The structure diagram of the material guiding mechanism of the present application is shown.

[0014] The structure diagram of the material guiding mechanism of the present application is shown. 1, base; 11, first side stand; 12, second side stand; 13, input bevel gear; 2, tilting mounting frame; 21, inclination adjusting connecting rod; 22, stirring barrel inclination adjusting oil cylinder; 23, first driving motor; 3, stirring barrel; 31, rotating shaft; 311, main shaft center hole; 32, mud inlet pipe; 33, mixing reinforced rib plate; 34, driven bevel gear; 35, cleaning chamber; 4, main driving mechanism; 41, variable speed output shaft; 42, low speed driven gear; 43, high speed driven gear; 44, support frame; 441, guide rod; 442, horizontal guide sliding groove; 443, oblique guide sliding groove; 45, mounting plate; 451, mounting groove; 452, driving gear; 46, adjusting screw rod; 5, center rotating rod; 51, side wall scraper assembly; 511, telescopic arm assembly; 512, scraper mounting frame; 513, spring chamber; 514, side wall scraper plate; 52, bottom scraper assembly; 521, bottom scraper base; 522, groove; 523, sliding guide groove; 524, adjustable arc-shaped scraper; 525, scraper hydraulic oil cylinder; 53, through hole; 54, adjusting mechanism; 541, control rotating shaft; 542, bevel gear transmission unit; 55, rotating joint; 6, fixed base; 61, push plate containing cavity; 62, rib plate end stop; 63, push plate driving oil cylinder; 64, push plate; 641, perforation; 642, scraper arm accommodation hole; 643, bottom scraper accommodation hole; 644, annular air cavity; 645, inclined air injection hole; 65, rib plate accommodation notch; 66, scraper arm hole sealing block; 7, material guiding mechanism; 71, translation guide rail seat; 72, moving seat; 721, placing groove; 722, mud receiving box; 73, translation driving screw rod; 74, support plate; 75, material guiding plate; 76, material guiding plate inclination oil cylinder; 77, weighing base. DETAILED DESCRIPTION

[0015] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application are described clearly and completely. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0016] To solve the technical problems in the background art, the automatic wall-scraping sludge conditioning and stirring treatment device and method are given as follows: As Figures 1-2 shown, as an embodiment of the present application, the automatic wall-scraping sludge conditioning and stirring treatment device provided by the present application comprises: The rack assembly comprises a base 1, a first side upright plate 11 and a second side upright plate 12. The base 1 serves as a supporting base of the device. In a specific implementation, the bottom structure of the base 1 is designed differently. Two wheel bodies are rotatably installed on one side of the base 1, facilitating the overall movement of the device. A support block is fixedly installed on the other side of the base 1, which is used to stably contact the ground to ensure the stability of operation. The first side upright plate 11 and the second side upright plate 12 are symmetrically and fixedly installed on the top of the base 1 in a vertical manner. The two upright plates are arranged in parallel to provide rigid support. The first side upright plate 11 is integrally formed with an axis sleeve on the side facing the second side upright plate 12. The sleeve serves as the installation reference of the subsequent core rotating pair.

[0017] The tipping mounting frame 2 is arranged between the first side upright plate 11 and the second side upright plate 12, and has a cross-section in the shape of a Chinese character “”. One end of the tipping mounting frame 2 is hingedly connected to the second side upright plate 12 through a hinge shaft, and the other end is movably sleeved outside the axis sleeve and rotatably connected with the axis sleeve. The extension end of the hinge shaft is fixedly connected with an inclination adjusting connecting rod 21. An agitation barrel inclination adjusting oil cylinder 22 is hingedly connected to the second side upright plate 12. The oil cylinder is hingedly connected with the inclination adjusting connecting rod 21, so as to dynamically adjust the inclination angle of the agitation barrel. The inclination adjusting connecting rod 21 and the agitation barrel inclination adjusting oil cylinder 22 constitute an inclination adjusting mechanism, which drives the tipping mounting frame 2 to swing around the hinge shaft, so as to adjust the working inclination angle of the agitation barrel.

[0018] The agitation barrel 3 is rotatably installed on the inner side of the tipping mounting frame 2 through a rotating shaft 31. The axis direction of the rotating shaft 31 is perpendicular to the axis direction of the main drive input shaft. Figure 4 As shown, the distal end of the agitation barrel 3 is in the shape of an opening. An inlet pipe 32 is fixedly installed at the proximal opening end. The cross-section of the inlet pipe 32 is in the shape of a tapered circular truncated cone, so as to optimize the material flow. A plurality of mixed reinforcement rib plates 33 are fixedly arranged in an annular array on the inner side of the barrel. The two sides of each rib plate are designed in the shape of an inclined surface, which enhances the shearing mixing effect of the sludge material.

[0019] The main driving mechanism 4 is installed on the first side stand 11 and comprises a main driving input shaft which is rotatably installed on the first side stand 11 and penetrates the tilting mounting frame 2, and the proximal end of the main driving input shaft penetrates the fixed shaft sleeve and is coaxially fixedly connected with the input bevel gear 13. The driven bevel gear 34 is coaxially fixedly connected to the outside of the stirring barrel 3, is in meshing transmission with the input bevel gear 13, and the main driving mechanism 4 realizes the stirring barrel speed control through the variable speed output.

[0020] The central rotating rod 5 penetrates the main shaft central hole 311 in the rotating shaft 31 and extends into the inside of the stirring barrel 3, and is rotatably connected with the rotating shaft 31. In the specific implementation, the first driving motor 23 is installed on the tilting mounting frame 2, and the output shaft of the first driving motor 23 drives the central rotating rod 5 to rotate through the bevel gear assembly.

[0021] The side wall scraper assembly 51 is installed on the central rotating rod 5, and can be understood as having the functions of scraping and cleaning the inside wall of the stirring barrel 3 and actively mixing the sludge material. The bottom scraper assembly 52 is also installed on the central rotating rod 5 and is used for cleaning the far end side wall of the stirring barrel and turning over the bottom sludge, so as to ensure that there is no residual sludge.

[0022] In an embodiment of the present application, it can be understood that the synchronous scraping and cleaning effect of the sludge attached to the inner wall of the stirring barrel 3 during the stirring process can be realized through the cooperation of the side wall scraper assembly 51 and the bottom scraper assembly 52, the residual sludge attached to the inner wall of the stirring barrel 3 is avoided, and the sludge in the stirring barrel 3 can be mixed through the side wall scraper assembly 51 and the bottom scraper assembly 52. The bottom scraper assembly 52 can realize the active turning over effect of the sludge in the stirring barrel 3, and the mixing effect of the sludge and the conditioning agent is improved.

[0023] As Figure 3As shown, in an embodiment of the present application, the main drive mechanism 4 comprises: a variable speed output shaft 41 coaxially fixed to the main drive input shaft and a low-speed driven gear 42 mounted on the main drive input shaft, the variable speed output shaft 41 coaxially fixed to a high-speed driven gear 43; a support frame 44 is fixed below the first side upright plate 11, horizontal guide sliding grooves 442 and inclined guide sliding grooves 443 (the inclined grooves extend downward relative to the horizontal grooves to achieve the purpose of guiding the change of gear meshing position) are opened on both sides of the support frame 44; a mounting plate 45 is slidably connected with the horizontal guide sliding grooves 442 through a connecting shaft, the mounting plate is provided with a mounting groove 451, a guide rod 441 fixed inside the support frame 44 penetrates the mounting groove 451, and a threaded connecting block that can slide along the guide rod 441 is arranged in the groove; an adjusting screw 46 is rotatably mounted on the support frame 44 and parallel to the guide rod 441, and drives the displacement of the connecting block through threaded transmission, thereby driving the mounting plate 45 to move along the sliding groove track; a driving gear shaft is fixedly connected with a driving gear 452 on the mounting plate 45 through a driving motor, and the gear can be selectively meshed with the low-speed / high-speed driven gear. It should be noted that when the connecting shaft is located at the end of the horizontal guide sliding groove 442, the driving gear 452 meshes with the low-speed driven gear 42, and when it is located at the end of the inclined guide sliding groove 443, it meshes with the high-speed driven gear 43; based on the design that the low-speed driven gear 42, the high-speed driven gear 43 and the driving gear 452 all maintain a gear ratio of 3:1, a constant-ratio variable speed output is provided, when switching to the low-speed gear position, the stirring barrel performs a powerful tumbling mixing action, and the low-speed deep digging of the adjustable arc-shaped scraper and the mixing of the reinforced rib plate form a strong shear flow, which completely breaks the agglomeration of high-viscosity sludge; when switching to the high-speed gear position, the centrifugal throwing mode is triggered, and the arc-shaped scraper spoon structure is used to rotate at high speed to uniformly eject the material containing sludge and conditioning agent to the barrel wall, and the vortex diffusion effect is generated by the barrel body rotation, realizing the micro-level dispersion of the conditioning agent and the sludge, and achieving global mixing homogenization.

[0024] As Figure 5 、 Figures 11-12As shown in the embodiment of the present application, the bottom scraper assembly 52 comprises a bottom scraper base 521 fixedly mounted on the outer sidewall of the central rotating rod 5 and an adjustable arc-shaped scraper 524 oppositely and slidably arranged thereon, wherein the working end surface of the bottom scraper base 521 is precisely fitted with the distal sidewall (non-opening end) of the mixing barrel 3, a groove 522 is formed on one side of the bottom scraper base 521, two sliding guide grooves 523 are formed on the bottom scraper base 521 and located on both sides of the opening end of the groove 522, the same adjustable arc-shaped scraper 524 is slidably connected in the two sliding guide grooves 523, the adjustable arc-shaped scraper 524 is flush with the side of the bottom scraper base 521 close to the opening end of the groove 522 and is fitted with the inner sidewall of the groove 522, the scraper hydraulic oil cylinders 525 which are fixedly connected with the adjustable arc-shaped scraper 524 are symmetrically and fixedly installed on the bottom scraper base 521 and located in the groove 522, wherein a horizontal plate is fixedly installed on the middle position of one side of the groove 522, the piston rod of the scraper hydraulic oil cylinder 525 is fixedly connected with the horizontal plate, when the bottom scraper base 521 rotates around the central rotating rod 5, the side of the bottom scraper base 521 away from the central rotating rod 5 is fitted with the side of the mixed reinforced rib plate 33 close to the central rotating rod 5, the adjustable arc-shaped scraper 524 adjusts the arc through the scraper hydraulic oil cylinder 525 to form a spoon-shaped structure, realizes the scraping and throwing functions of the bottom sludge material, improves the mixing effect of the sludge and the conditioning agent, and the bottom scraper base 521 scrapes and cleans the inner wall of the distal side of the mixing barrel 3 away from the opening end thereof.

[0025] As Figure 9 shown in the embodiment of the present application, the sidewall scraper assembly 51 comprises scraper units symmetrically mounted on the outside of the central rotating rod 5, the scraper units comprise the telescopic arm assemblies 511 linearly arranged in a horizontal direction (radially distributed) and mounted on the outside of the central rotating rod 5, the end portions of the plurality of telescopic arm assemblies 511 of the same group of scraper units are fixedly connected with the scraper mounting frames 512, a plurality of spring cavities 513 are formed on the side of the scraper mounting frame 512 away from the telescopic arm assembly 511, the elastic compression springs extending to the outside of the scraper mounting frame 512 are fixedly installed in the spring cavities 513, the other end of the plurality of elastic compression springs is fixedly installed with the sidewall scraper plate 514 movably sleeved on the outside of the scraper mounting frame 512, the cross section between the sidewall scraper plate 514 and the scraper mounting frame 512 is fitted, the sidewall scraper plate 514 is always pressed against the inner wall of the mixing barrel 3 through the elastic compression springs, and is suitable for scraping and cleaning the surface of the mixed reinforced rib plate 33 of the inner wall of the mixing barrel 3.

[0026] Based on the above technical concept, it should be noted that, as Figure 9As shown, the telescopic arm assembly 511 includes a fixed sleeve fixedly installed on the outer side wall of the central rotating shaft 5, the end of the fixed sleeve away from the central rotating shaft 5 is movably penetrated by a telescopic arm shaft, the cross section of the telescopic arm shaft is square, and the cross section of the telescopic arm shaft is fitted with the fixed sleeve, the scraper mounting frame 512 is fixedly connected with the plurality of telescopic arm shafts, the central rotating shaft 5 is provided with a through hole 53, the telescopic drive lead screw is rotatably installed in the fixed sleeve, one end of the telescopic drive lead screw is threadedly connected with the telescopic arm shaft, the other end of the telescopic drive lead screw extends into the through hole 53, the central rotating shaft 5 is provided with an adjusting mechanism 54 connected with the plurality of telescopic drive lead screws, the adjusting mechanism 54 is used for rotating or stopping the plurality of telescopic drive lead screws, so that the plurality of telescopic arm shafts are synchronously slid along the fixed sleeve to the outside or the inside of the fixed sleeve, the telescopic drive lead screw drives the telescopic arm shaft to be telescopic through the adjusting mechanism 54, the collective expansion or contraction of the side wall scraper assembly 51 is realized, and during the mixing of the sludge, the side wall scraper assembly 51 is collectively in a contracted state, so that the sludge in the mixing barrel 3 can be mixed by the fixed sleeve, the scraper mounting frame 512 and the side wall scraper plate 514 of the side wall scraper assembly 51, and the mixing effect of the sludge and the conditioner is improved.

[0027] As shown in Figures 7-8 The adjusting mechanism 54 includes a control rotating shaft 541 rotatably installed on the central rotating shaft 5 in a horizontal direction, one end of the control rotating shaft 541 extends into the through hole 53, and the outer side wall of the end of the control rotating shaft 541 extending into the through hole 53 is equidistantly arranged with bevel gear transmission units 542, the same group of bevel gear transmission units 542 is connected with the two telescopic drive lead screws opposite to each other, when the control rotating shaft 541 rotates, the two telescopic drive lead screws opposite to each other are synchronously and reversely rotated through the bevel gear transmission units 542, so that the dynamic balance of the scraper assembly is maintained, and specifically, the bevel gear transmission units 542 include a bevel gear one coaxially fixedly connected with the control rotating shaft 541, the two telescopic drive lead screws are coaxially fixedly connected with bevel gear two engaged with the bevel gear one, and the two bevel gear two are symmetrically arranged, and the two telescopic drive lead screws have the same screw direction.

[0028] As shown in 8, in an embodiment of the present application, in order to completely clean the attachments on the inner wall of the mixing barrel 3 and the movable scraper component and prevent the material from entering the core chamber, a special cleaning chamber 35 is arranged on the inner wall of the mixing barrel 3 away from the opening end. The part of the central rotating shaft 5 extending into the chamber is fixedly installed with a fixed base 6. It can be understood that the design core of the fixed base 6 is that the outer side wall thereof is precisely fitted with the inner side wall of the cleaning chamber 35, forming an initial seal to block the material from entering the rear space of the chamber.

[0029] Further, as shown in Figure 6As shown, the fixed base 6 is provided with a push plate accommodating cavity 61 on the side of the opening end of the stirring barrel 3. On the outer periphery of the accommodating cavity opening end, the fixed base 6 is fixedly installed with a plurality of rib plate end blocks 62 in a ring array. It can be understood that the end face of the block is designed to be closely fitted with the end section of the mixed reinforced rib plate 33. Two horizontally arranged push plate drive oil cylinders 63 are symmetrically fixedly installed in the push plate accommodating cavity 61. The piston rod ends of the two oil cylinders 63 are jointly connected and drive a push plate 64 movably sleeved on the outside of the central rotating rod 5.

[0030] Further, a plurality of rib plate accommodation notches 65 corresponding in number to the mixed reinforced rib plates 33 are formed on the outer side wall of the push plate 64. When the push plate 64 is driven by the oil cylinder 63 to retreat to a state of complete fitting with the fixed base 6, each rib plate end block 62 will be accurately inserted into the corresponding rib plate accommodation notch 65, and the cross sections of the two will be closely fitted without gaps. At this time, the end face of the block 62 is flush with the outer side wall of the push plate 64, forming a continuous surface.

[0031] Further, as shown, Figure 10 The push plate 64 is movably sleeved on the outside of the central rotating rod 5 through the perforation 641. Symmetrically arranged scraper arm accommodation holes 642 are formed on the push plate 64 along the radial direction of the push plate 64, and the scraper arm accommodation holes 642 are in communication with the perforation 641. The push plate 64 is further provided with a bottom scraper accommodation hole 643 in communication with the perforation 641.

[0032] Further, the bottom scraper base 521 can movably penetrate the bottom scraper accommodation hole 643 and be closely fitted with the inner side wall of the bottom scraper accommodation hole 643. When the telescopic arm shaft is hidden in the fixed sleeve, the side wall scraper plate 514 can movably penetrate the scraper arm accommodation hole 642, and the fixed sleeve, the scraper mounting frame 512 and the side wall scraper plate 514 are closely fitted with the inner side wall of the scraper arm accommodation hole 642.

[0033] Further, in order to completely close the accommodation hole openings and prevent material from entering the push plate accommodating cavity 61 when the push plate 64 is returned, scraper arm hole sealing blocks 66 are symmetrically fixedly installed in the fixed base 6, and bottom scraper hole sealing blocks are fixedly installed in the fixed base 6. When the push plate 64 is fitted with the fixed base 6, the scraper arm hole sealing blocks 66 are inserted into the scraper arm accommodation hole 642 and are closely fitted with the inner side wall of the scraper arm accommodation hole 642. The bottom scraper hole sealing blocks are inserted into the bottom scraper accommodation hole 643 and are closely fitted with the inner side wall of the bottom scraper accommodation hole 643. The design of the push plate 64 and the fixed base 6, the design of the rib plate end block 62, the scraper arm hole sealing block 66 and the bottom scraper hole sealing block, the closing of the rib plate accommodation notch 65 and the scraper arm accommodation hole 642 and the bottom scraper accommodation hole 643, and the prevention of material from entering the push plate accommodating cavity 61.

[0034] During the sludge treatment process, the pusher plate drive cylinder 63 pushes the pusher plate 64 towards the opening end of the mixing tank 3. At this time, the edges of the multiple rib clearance notches 65 on the outer wall of the pusher plate 64 scrape across the surfaces of the corresponding multiple mixing reinforcement ribs 33, cleaning them. Simultaneously, the moving pusher plate 64 itself applies a scraping action to the outer surfaces of components exposed in its path (bottom scraper base 521, fixing sleeve, scraper mounting frame 512, and side wall scraper plate 514). Understandably, this active scraping mechanism, combined with the cleaning effect of the orifice edge, can efficiently remove sludge residues adhering to the surfaces of these key components, effectively preventing material solidification and accumulation, and ensuring the cleanliness of the equipment and the subsequent treatment effect.

[0035] Furthermore, such as Figure 11 As shown, in one embodiment of the present invention, an annular air cavity 644 is provided inside the push plate 64. Specifically, the annular air cavity 644 is not connected to the rib clearance notch 65, the through hole 641, the scraper arm clearance hole 642, or the bottom scraper clearance hole 643. Multiple inclined jet holes 645 communicating with the interior of the annular air cavity 644 are provided on the inner walls of both sides of the scraper arm clearance hole 642. The inclined jet holes 645 are inclined towards the opening end of the mixing tank 3 in a direction away from the annular air cavity 644. A flexible connecting air pipe communicating with the interior of the through hole 53 is fixedly installed on the central rotating rod 5 and located on the fixed base 6. The other end of the flexible connecting air pipe penetrates the side of the push plate 64 away from the opening end of the mixing tank 3 and communicates with the interior of the annular air cavity 644. The outer wall of the central rotating rod 5 and... A rotating joint 55, which communicates with the inside of the through hole 53, is coaxially fixed to the side of the rotating shaft 31 away from the mixing tank 3. A flexible connecting air pipe, which communicates with the inside of the rotating joint 55, is fixedly installed on the rotating joint 55. The flexible connecting air pipe is connected to an external air pump. During sludge treatment, when the push plate 64 moves to scrape and clean the surfaces of the bottom scraper base 521, the fixed sleeve, the scraper mounting frame 512, and the side wall scraper plate 514, the annular air chamber 644 is connected to an external air source through the flexible connecting air pipe. Compressed air is introduced into the annular air chamber during the cleaning stage and sprayed through the inclined jet nozzle to remove the sludge remaining on the surface of the scraper assembly, preventing blockage and cross-contamination. The inclined jet nozzle 645 sprays air to remove the residue on the surface of the side wall scraper plate 514 and the scraper mounting frame 512, improving the cleaning effect.

[0036] like Figure 13As shown, in an embodiment of the present application, the base 1 is provided with a medicament guide mechanism 7, which includes a translation rail seat 71 fixedly installed on the base 1 near the opening end of the stirring barrel 3, a moving seat 72 horizontally slidingly installed on the translation rail seat 71, a translation drive screw 73 threadedly connected with the moving seat 72 and rotationally installed on the translation rail seat 71, the moving seat 72 horizontally slidingly moving through the threadedly cooperating translation drive screw 73 (the translation drive screw 73 is driven by a second drive motor), the moving seat 72 being symmetrically fixedly connected with support plates 74 at the top, the two support plates 74 being hingedly connected with a guide plate 75 at the top, the hingedly connected points of the two support plates 74 being positioned higher than the axis direction of the main drive input shaft, the guide plate 75 being hingedly connected with the moving seat 72 at the bottom through a guide plate inclination oil cylinder 76 to realize inclination adjustment, the guide plate 75 being fixedly connected with a weighing base 77 at the bottom of the distal end, the weighing base 77 being supported by a plurality of vertical spring telescopic rods at the top to support a top opening quantitative hopper, the weighing base 77 being provided with a weighing sensor in contact with the bottom surface of the quantitative hopper at the top surface, the weighing sensor being used to detect the weight of the material (sludge or conditioning agent) in the hopper and output a signal to a control system to realize accurate quantitative addition of the sludge and the conditioning agent, and the guide plate 75 being inclined downward along the direction of the sludge inlet pipe 32, the distal end of the guide plate 75 accurately extending to the inside of the sludge inlet pipe 32 to form a guide flow channel when the opening end of the quantitative hopper is inclined downward with the guide plate 75.

[0037] Further, in the present embodiment, the device realizes weighing data visualization and automatic control through an external display screen and a PLC control system, the weighing sensor is in communication connection with the PLC control system, the PLC control system is in communication interconnection with the display screen, and the two sides of the quantitative hopper are in structural fit with the inner side wall of the guide plate 75; the moving seat 72 is provided with a placing groove 721 at the top adjacent to the support plate 74 area, and an opening type sludge receiving box 722 is arranged in the placing groove 721; in particular, a guide plate is fixedly installed on the side of the stirring barrel 3 near the placing groove 721, the lowest end of the guide plate is positioned higher than the top opening plane of the sludge receiving box 722, and the guide plate is inclined downward along the containing direction of the sludge receiving box 722 as a whole, so as to ensure that the sludge material is guided without residue.

[0038] As a second aspect of the present application, an automatic wall scraping sludge conditioning and stirring treatment method is provided, which includes the following steps: Step 1, quantitative addition of sludge and conditioning agent: Step 101, the required sludge and conditioning agent are weighed according to the treatment requirements, and are sequentially added into the quantitative hopper, the material gravity causes the quantitative hopper to move downward along the spring telescopic rod, a weighing sensor detection signal change is triggered to realize quantitative feeding control; Step 102, the translation drive screw 73 is driven to rotate, the moving seat 72 drives the guide plate 75 to move to the front side of the sludge inlet pipe 32; Step 103, the guide plate inclination oil cylinder 76 adjusts the inclination angle of the guide plate 75, so that the material flows into the stirring barrel 3 through the sludge inlet pipe 32; Step 2, preliminary mixing stage: Step 201, adjust the side wall scraper assembly 51: rotate the control shaft 541 to make the telescopic drive screw drive the telescopic arm mandrel to retract, and make the side wall scraper plate 514 away from the mixing reinforced rib plate 33; Step 202, set the low-speed stirring mode: rotate the adjusting screw 46 to make the driving gear 452 engage with the low-speed driven gear 42, start the driving motor to drive the stirring barrel 3 to rotate slowly through the 3:1 speed ratio; Step 203, optimize the mixing effect: adjust the stirring barrel inclination angle adjusting oil cylinder 22 to adjust the inclination angle of the stirring barrel 3, so that the material is accumulated at the bottom; the adjustable arc-shaped scraper 524 forms a spoon-shaped side wall scraper plate through the scraper hydraulic oil cylinder 525, and the bottom sludge material is turned over by rotating the central rotating rod 5; continue to mix at low speed for two minutes to uniform; Step 3, reinforced mixing stage: Step 301, reset the stirring barrel to the horizontal state, and then supplement water or liquid conditioner through the sludge inlet pipe 32; keep low-speed stirring for three minutes for preliminary mixing; Step 302, switch to high-speed mode: adjust the driving gear 452 to engage with the high-speed driven gear 43; Step 303, start the driving motor for one minute high-speed stirring; drive the central rotating rod 5 by the first driving motor 23 to drive the side wall scraper plate 514 to assist mixing; Step 4, wall scraping and discharging stage: Step 401, switch back to low-speed mode; Step 402, deploy the side wall scraper assembly 51: rotate the control shaft 541 to make the side wall scraper plate 514 adhere to the inner wall of the stirring barrel 3; Step 403, stop the central rotating rod 5 drive, make the stirring barrel 3 rotate, and the side wall scraper plate 514 self-adapts to scrape the side wall through the elastic compression spring; the bottom scraper base 521 cleans the bottom residue; Step 404, continue to stir for thirty seconds to complete the final mixing, form a homogeneous conditioned sludge, and then tilt the conditioning tank to discharge the material to the sludge receiving box through the sludge inlet pipe.

[0039] The working principle of the present application: Sludge / conditioner feeding stage: the sludge or conditioner is sequentially fed into the quantitative hopper, the material gravity drives the quantitative hopper to move downward along the spring telescopic rod to trigger the weighing sensor, and the real-time metering is realized through the PLC control system and displayed on the external display screen; after completing the quantitative feeding, the second driving motor drives the translation drive screw 73 to rotate, so that the moving seat 72 moves horizontally along the translation guide rail seat 71 to the front side of the sludge inlet pipe 32, the guide plate inclination cylinder 76 adjusts the inclination angle of the guide plate 75 to make the end accurately butt joint with the sludge inlet pipe 32, and the material flows into the stirring barrel 3 through the guide plate 75.

[0040] The primary mixing stage: manually rotating the control rotating shaft 541 drives the synchronous movement of the telescopic drive screw, so that the telescopic arm mandrel is retracted from the mixing reinforced rib plate 33; rotating the adjusting screw 46 makes the driving gear 452 engage the low-speed driven gear 42 (3:1 speed ratio), and the driving motor drives the slow rotation of the stirring barrel 3; the synchronous control of the stirring barrel inclination adjusting oil cylinder 22 makes the stirring barrel 3 tilt to accumulate the material, and the scraper hydraulic oil cylinder 525 drives the adjustable arc-shaped scraper 524 to deform into a spoon-shaped dynamic aggregate cavity, which is matched with the rotation of the central rotating rod 5 driven by the first driving motor 23 to realize the bottom material turning and throwing, and the fixed sleeve and side wall scraper assembly 51 assist mixing, and the low-speed mixing is continued for two minutes.

[0041] The reinforced mixing stage: after resetting the stirring barrel 3 to the horizontal state, the liquid can be quantitatively supplemented, and the low-speed stirring is maintained for three minutes; the driving gear 452 is switched to engage the high-speed driven gear 43 for one minute of high-speed stirring, and the central rotating rod 5 drives the side wall scraper assembly 51 to strengthen the mixing.

[0042] The wall scraping and discharging stage: switch back to the low-speed mode, expand the side wall scraper plate 514 to adhere to the barrel wall, and close the central rotating rod 5 to realize the elastic compression spring self-adaptive scraping of the inner wall and the inclined surface of the mixing reinforced rib plate 33 after driving, the bottom scraper base 521 synchronously cleans the residues, and the final mixing is completed for thirty seconds.

[0043] The discharging stage: translate the mud receiving box 722 to the lower side of the stirring barrel 3, tilt the stirring barrel 3 to make the treated sludge fall into the mud receiving box 722 through the mud inlet pipe 32 and the guide plate; synchronously retract the scraper assembly, the push plate 64 scrapes the surface of the assembly under the driving of the push plate driving oil cylinder 63, the annular air cavity 644 is connected to the high-pressure gas through the flexible connecting air pipe and the rotating joint 55, and the residues are removed by the inclined air injection hole 645.

[0044] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An automatic wall-scraping sludge conditioning and mixing treatment device, characterized in that: include: Rack components; A tilting mounting bracket (2) is mounted on the frame assembly, with one end hinged to the frame assembly and the other end rotatably connected. The tilting mounting bracket (2) is connected to a tilt angle adjustment mechanism. The mixing tank (3) is rotatably mounted on the tilting mounting frame (2) via a rotating shaft (31). One end of the tank is open and is equipped with a mud inlet pipe (32). The inner side wall of the tank is arranged with mixing reinforcement ribs (33) in a ring. The rotating shaft (31) is provided with a main shaft center hole (311). The main drive mechanism (4) is mounted on the frame assembly and is used to drive the mixing tank (3) to rotate; A central rotating rod (5) is movably inserted through the central hole (311) of the main shaft and extends into the interior of the mixing tank (3); a side wall scraper assembly (51) is mounted on the central rotating rod (5) and is used to scrape the inner side wall of the mixing tank and the surface of the mixing reinforcement rib (33) and to stir the sludge material; a bottom scraper assembly (52) is mounted on the central rotating rod (5) and is used to scrape the bottom wall of the mixing tank and to turn over the bottom sludge. The side wall scraper assembly (51) includes symmetrically arranged scraper units. The scraper units include radially distributed telescopic arm assemblies (511) and a scraper mounting frame (512) driven by the telescopic arms. The scraper mounting frame (512) is equipped with a side wall scraper plate (514) through an elastic clamping component, so that it adaptively clamps the barrel wall. The bottom scraper assembly (52) includes a bottom scraper base (521) fixed to the central rotating rod (5) and an adjustable arc-shaped scraper (524) slidably disposed thereon. The adjustable arc-shaped scraper (524) is connected to a scraper hydraulic cylinder (525) that drives it to slide to change the arc, thereby forming a structure that can be transformed into a spoon shape to achieve scraping and spreading of sludge material.

2. The automatic wall-scraping sludge conditioning and mixing treatment device according to claim 1, characterized in that: The frame assembly includes a base (1), a first side plate (11) and a second side plate (12) symmetrically fixedly installed on the top of the base (1), and a fixed-axis sleeve integrally formed on the side of the first side plate (11) facing the second side plate (12). The tilting mounting bracket (2) is located between the first side plate (11) and the second side plate (12). One end of the bracket is hinged to the second side plate (12) via a hinge shaft, and the other end is movably sleeved outside the fixed shaft sleeve and rotatably connected to it. The tilt adjustment mechanism includes a tilt adjustment link (21) fixed to the extension end of the hinge shaft and a stirring tank tilt adjustment cylinder (22) hinged to the second side plate (12). The cylinder is hinged to the tilt adjustment link (21) to drive the tilting mounting frame (2) to swing around the hinge shaft, thereby adjusting the working tilt angle of the stirring tank.

3. The automatic wall-scraping sludge conditioning and mixing treatment device according to claim 2, characterized in that: The main drive mechanism (4) includes a main drive input shaft rotatably mounted on the first side plate (11), one end of which movably passes through the fixed shaft sleeve and is coaxially fixed with an input bevel gear (13); the outside of the mixing tank (3) is coaxially fixed with a driven bevel gear (34) that meshes with the input bevel gear (13) for receiving power and driving the mixing tank to rotate.

4. The automatic wall-scraping sludge conditioning and mixing treatment device according to claim 3, characterized in that: The main drive mechanism (4) further includes a speed-changing output shaft (41) coaxially fixed to the end of the main drive input shaft, wherein a low-speed driven gear (42) is coaxially fixed to the main drive input shaft, and a high-speed driven gear (43) is coaxially fixed to the speed-changing output shaft (41). A support frame (44) is fixed below the first side plate (11). Both sides of the support frame are provided with horizontal guide grooves (442) and oblique guide grooves (443) connected thereto, which are used to guide the change of gear meshing position. A connecting shaft is slidably connected in the horizontal guide groove (442), and a vertical mounting plate (45) is fixed between the two connecting shafts. The mounting plate is provided with a mounting groove (451). The inner side of the support frame (44) is fixed with a guide rod (441) that passes through the mounting groove (451). The mounting plate (45) is rotatably mounted with a drive gear shaft driven by a drive motor. A drive gear (452) is coaxially fixed on the shaft and can mesh with either the low-speed driven gear (42) or the high-speed driven gear (43) to meet the speed requirements of different mixing stages in the sludge treatment process. The low speed is used for preliminary mixing to avoid damaging the flocs, and the high speed is used to enhance mixing and improve the dispersion efficiency of the conditioner.

5. The automatic wall-scraping sludge conditioning and mixing treatment device according to claim 1, characterized in that: The telescopic arm assembly (511) includes a fixed sleeve fixed to the central rotating rod (5) and a telescopic arm spindle that movably passes through the fixed sleeve. The free end of the telescopic arm spindle is fixed to the scraper mounting frame (512). A through hole (53) is provided inside the central rotating rod (5). A telescopic drive screw is rotatably installed inside the fixed sleeve. One end of the screw is threaded to the telescopic arm spindle, and the other end extends into the through hole (53). An adjustment mechanism (54) is provided on the central rotating rod (5) to drive multiple telescopic drive screws to rotate synchronously, thereby causing multiple telescopic arm spindles to extend and retract synchronously, so as to realize the collective expansion or contraction of the side wall scraper assembly.

6. The automatic wall-scraping sludge conditioning and mixing treatment device according to claim 5, characterized in that: The adjustment mechanism (54) includes a control shaft (541) rotatably mounted on the central rotating rod axis. One end of the shaft extends into the through hole (53), and bevel gear transmission units (542) are equidistantly arranged at that end. Each set of bevel gear transmission units (542) simultaneously meshes with two symmetrically arranged telescopic drive screws, so that when the control shaft (541) rotates, it can drive the two telescopic drive screws to rotate synchronously in opposite directions, thereby maintaining the dynamic balance of the scraper assembly.

7. The automatic wall-scraping sludge conditioning and mixing treatment device according to claim 1, characterized in that: The mixing tank (3) has a cleaning chamber (35) on the inner wall away from the opening end, and a fixed base (6) is fixed inside the chamber and fits against the inner wall of the chamber. The fixed base (6) has a push plate receiving cavity (61) on the side near the opening end, and the cavity opening end has a rib end block (62) that fits against the end of the hybrid reinforced rib (33). The push plate receiving cavity (61) is symmetrically fixed with push plate driving cylinders (63), and the piston rod of the cylinder is connected to a push plate (64) that is movably sleeved outside the central rotating rod (5). The outer wall of the push plate (64) is provided with a rib clearance notch (65) corresponding to the end block (62) of the rib plate. When the push plate (64) returns to its original position and fits against the fixed base (6), each block is inserted into the corresponding notch and the end face is flush. The push plate (64) has a through hole (641) in the middle for the central rotating rod (5) to pass through, and has a scraper arm clearance hole (642) and a bottom scraper clearance hole (643) in the radial direction that communicate with the through hole, which are used to accommodate the side wall scraper assembly (51) and the bottom scraper base (521) when the scraper is retracted. The fixed base (6) is provided with a scraper arm hole sealing block (66) and a bottom scraper hole sealing block that can be inserted into the clearance hole. These are used to seal the corresponding clearance hole after the push plate returns to its original position, thereby achieving a double seal, preventing high-viscosity sludge from entering the push plate cavity, ensuring the stability and hygiene of the equipment during long-term operation, and avoiding sludge solidification from affecting the treatment effect of subsequent batches.

8. The automatic wall-scraping sludge conditioning and mixing treatment device according to claim 7, characterized in that: The push plate (64) is provided with an annular air chamber (644), which is connected to the outside through inclined jet holes (645) on both sides of the inner wall of the scraper arm clearance hole (642); The fixed base (6) is provided with a flexible connecting air pipe, one end of which is connected to the central rotating rod through hole (53), and the other end passes through the back of the push plate (64) and is connected to the annular air chamber (644). The central rotating rod (5) is fixed to a rotating joint (55) at the outer end of the rotating shaft (31). The joint is connected to the through hole (53) of the central rotating rod and connected to an external air source. It is used to introduce compressed air into the annular air chamber during the cleaning stage and spray it through the inclined jet hole to remove the sludge remaining on the surface of the scraper assembly, prevent blockage and cross-contamination, and ensure the cleanliness and hygiene of the equipment.

9. The automatic wall-scraping sludge conditioning and mixing treatment device according to claim 1, characterized in that: The base (1) is provided with a drug guiding mechanism (7), which includes a translation guide rail seat (71) fixed to the base near the opening end of the mixing tank. The translation guide rail seat (71) is driven by a translation drive screw (73) to move a seat (72). The top of the moving seat is symmetrically fixed with support plates (74), and a guide plate (75) is hinged between the two support plates. The movable seat (72) is also hinged to a guide plate tilting cylinder (76), which is hinged to the bottom of the guide plate (75) to adjust its tilt angle; The bottom of the guide plate (75) away from the mixing tank is fixed with a weighing base (77), on which a quantitative hopper is installed by multiple spring telescopic rods. The top of the weighing base (77) is equipped with a weighing sensor that contacts the bottom of the quantitative hopper, which is used to detect the weight of the material in the hopper and output a signal to the control system to realize the precise quantitative addition of sludge and conditioning agent. The top of the movable seat (72) is provided with a placement groove (721), in which a mud receiving box (722) is placed.

10. A sludge conditioning and mixing method using the automatic wall scraping method according to any one of claims 1 to 9, characterized in that: Including the following steps: Quantitative addition of sludge and conditioner: Sludge or liquid / solid conditioner is added to the quantitative hopper and weighed, and then sent into the mixing tank (3) through the guide plate (75) and sludge inlet pipe (32). Preliminary mixing stage: shrink the side wall scraper assembly (51), set low speed stirring, adjust the tilt angle of the mixing tank to make the material accumulate, drive the adjustable arc scraper (524) to form a spoon-shaped structure and rotate, realize the bottom material to be turned over and thrown, mix at low speed until initially uniform, and avoid damaging the sludge floc structure. Enhanced mixing stage: Reset the mixing tank to a horizontal position, add conditioner or water in a measured amount, perform initial mixing at low speed, then switch to high speed mixing, and drive the side wall scraper (514) to assist mixing. High speed mixing enhances shearing and promotes full contact and reaction between the conditioner and sludge. Scraping and Discharge Stage: Switch back to low speed mode, unfold the side wall scraper (514) to fit the barrel wall, stop the central rotating rod (5) drive, scrape the wall by rotating the mixing barrel, and clean the bottom of the bottom scraper base (521) at the same time. After scraping and mixing for a certain period of time, the mixing is completed. Tilt the mixing barrel to discharge the treated sludge through the sludge inlet pipe, ready for subsequent dewatering treatment.

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