A stirring device for preventing precipitation of calcium hydroxide slurry

Abstract

The utility model relates to a kind of calcium hydroxide slurry anti-deposition stirring device, belong to the technical field of stirring equipment.The device includes shell and its internal transmission cavity, first gear set and second gear set are equipped in cavity.First gear set's stirring shaft and sleeve shaft of second gear set adopt coaxial nesting structure, and are connected first paddle and second paddle respectively.Through the sleeve shaft axial sliding of driving sliding clutch assembly, the meshing and separation of second gear set are controlled, and the switching of two modes of double-paddle linkage and single-paddle work is realized.The utility model realizes the flexible conversion of stirring mode using single compact structure, can meet the efficient anti-deposition demand of normal production, and can realize energy-saving operation and soft start function, effectively solve the problem of sedimentation dead zone existing in traditional stirring device.

Description

Technical Field

[0001] This utility model belongs to the technical field of mixing equipment, and in particular relates to a stirring device for preventing sedimentation of calcium hydroxide slurry. Background Technology

[0002] Calcium hydroxide slurry (commonly known as lime milk) is widely used in environmental protection, chemical industry, and water treatment. Due to its solid-liquid two-phase characteristics, the solid particles in the slurry are prone to sedimentation when left to stand or stirred at low speed, forming a hard, dense sediment layer at the bottom of the container. This sedimentation not only leads to unstable discharge concentration, affecting the effect of subsequent processes, but also causes a sharp increase in stirring resistance, even causing the mixer to overload and shut down. In severe cases, the calcium hydroxide slurry product may precipitate and clump, requiring manual cleaning, which greatly increases maintenance costs and the risk of production interruption.

[0003] Currently, the industry mostly uses conventional single-shaft agitators, such as anchor, paddle, or turbine agitators. These agitators are typically driven by a single motor, with all blades rotating synchronously at a fixed speed. This has the following inherent drawbacks: First, the flow field with a single direction and speed of rotation is difficult to effectively eliminate fluid dead zones near the bottom and walls of the tank, resulting in limited anti-settling effects; second, when different functional areas (such as bottom anti-settling and central enhanced shearing) require different speeds or directions of rotation, the traditional single-shaft structure cannot achieve this; third, once shutdown leads to caking, all blades must simultaneously overcome enormous resistance upon restarting, easily damaging the drive mechanism.

[0004] Therefore, there is also a design that uses two motors to drive the inner and outer stirring shafts respectively, but this method has problems such as complex structure, high cost, difficulty in synchronous control, and large space occupation, making it difficult to promote and apply in small and medium-sized containers.

[0005] Therefore, there is an urgent need for a compact, flexible, effective anti-settling, and highly reliable stirring device that can enable the two layers of blades to work independently or in tandem to adapt to the complex working conditions of calcium hydroxide slurry production. Utility Model Content

[0006] This application provides a calcium hydroxide slurry anti-sedimentation stirring device to solve the technical problems of sedimentation in the stirring dead zone and insufficient stirring leading to sedimentation and agglomeration of calcium hydroxide slurry products due to the limitations of the single-shaft structure in existing stirring equipment. To achieve the above objective, the following technical solution is provided: a calcium hydroxide slurry anti-sedimentation stirring device, comprising: The outer shell has a transmission cavity inside, and a first gear set and a second gear set are rotatably arranged inside the transmission cavity. The stirring shaft of the first gear set and the sleeve shaft of the second gear set are coaxially arranged and one end of each extends from the same end of the transmission cavity to the outside. The outer ends of the stirring shaft and the sleeve shaft are respectively provided with a first blade and a second blade. The stirring device also includes a sliding clutch assembly, which is connected to the sleeve shaft and slidably disposed in the transmission cavity. It is used to drive the sleeve shaft to slide along its axial direction so that the second gear set can engage or disengage from the first gear set.

[0007] In any of the above technical solutions, the first gear set further includes a drive shaft and a stirring shaft rotatably disposed inside the transmission cavity. A first drive gear is fixedly disposed at one end of the drive shaft, and a first driven gear is fixedly disposed at the end of the stirring shaft located inside the transmission cavity. The first drive gear and the first driven gear engage externally for transmission.

[0008] In any of the above technical solutions, the second gear set further includes a second drive shaft rotatably disposed inside the transmission cavity and a sleeve shaft sleeved outside the stirring shaft. A second drive gear is fixedly disposed on the second drive shaft, and a second driven gear is fixedly disposed at one end of the sleeve shaft located inside the transmission cavity. The second drive gear and the second driven gear mesh with each other for transmission.

[0009] In any of the above technical solutions, the sleeve shaft is further provided coaxially with the stirring shaft, and the sleeve shaft can slide along the axial direction of the stirring shaft.

[0010] In any of the above technical solutions, the sliding clutch assembly further includes a transition ring block fixedly sleeved on the outer ring side of the sleeve shaft, and a sliding tray rotatably connected to the transition ring block and capable of driving its axial movement.

[0011] In any of the above technical solutions, the sliding clutch assembly further includes a guide rod slidably disposed inside the transmission cavity, one end of the guide rod protruding through the housing, a hydraulic cylinder or air cylinder being disposed at the outer end face of the housing, the piston rod end of the hydraulic cylinder or air cylinder being fixedly connected to the protruding end of the guide rod, and the sliding tray being fixedly connected to the guide rod.

[0012] In any of the above technical solutions, a guide groove is further provided on the side wall of the transmission cavity, and a portion of the sliding tray is slidably disposed in the guide groove.

[0013] In any of the above technical solutions, the first blade is fixedly installed at the extended end of the stirring shaft, and the second blade is fixedly installed at the extended end of the sleeve shaft.

[0014] In any of the above technical solutions, the inner wall of the sleeve shaft is provided with a groove along the axial direction, and a block is fixedly provided on the outer wall of the stirring shaft. The block is slidably embedded in the groove to transmit torque and allow relative axial sliding.

[0015] In any of the above technical solutions, the first blade and the second blade rotate in opposite directions.

[0016] The beneficial effects of this application can be summarized in the following four points: 1. Through an innovative mechanical sliding clutch assembly, a single power source is required to precisely and reliably switch between "dual-blade linkage" and "single-blade operation" modes for the two-layer impellers. This meets the high-efficiency and powerful mixing requirements during normal production. Simultaneously, the coaxial nested dual output shaft design integrates two independent transmission systems within the installation space of traditional single-shaft mixers, avoiding their inherent structural bulk, large space occupation, high cost, and complex control. This makes the device suitable for space-constrained and cost-sensitive small to medium-sized tanks, achieving an optimal balance between performance and cost.

[0017] 2. All gears, bearings, and other transmission components of the device are sealed inside independent transmission chambers, completely physically isolated from the highly corrosive and abrasive calcium hydroxide slurry environment, thus improving the reliability and service life of the transmission system. The fully enclosed design eliminates wear, corrosion, and failure caused by media intrusion, extending the service life of the core components and reducing the frequency and cost of maintenance due to downtime caused by malfunctions.

[0018] 3. Through a two-stage gear design, the inner and outer blades rotate in opposite directions at preset speeds, generating a highly efficient and uniform flow field that eliminates dead zones in the mixing process. This creates a high-intensity shear zone and complex vortices within the tank. It effectively breaks up particle agglomeration, prevents slurry thickening and sedimentation, and powerfully washes against the tank walls and bottom, ensuring extremely uniform and stable discharge concentration. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the appearance of this utility model; Figure 2 This is a schematic diagram of the internal structure of this utility model; Figure 3 This is a cross-sectional view of the internal structure of this utility model; Figure 4 This is a three-dimensional schematic diagram of the sliding clutch assembly of this utility model; Figure 5 yes Figure 2 Enlarged diagram of point A in the middle.

[0020] The attached figures are labeled as follows: 10. Outer shell; 11. Transmission cavity; 20. First gear set; 21. Drive shaft one; 22. First drive gear; 22a. Insert; 23. Stirring shaft; 24. First driven gear; 30. Second gear set; 31. Drive shaft two; 32. Second drive gear; 33. Sleeve shaft; 33a. Groove; 34. Second driven gear; 40. Blade set; 41. First blade; 42. Second blade; 50. Sliding clutch assembly; 51. Adapter ring block; 52. Sliding tray; 53. Guide rod; 54. Hydraulic cylinder; 55. Guide groove. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0022] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings. Example 1

[0023] Reference Figures 1 to 5 This invention provides a stirring device for preventing sedimentation of calcium hydroxide slurry. The core design of this device lies in its compact transmission system, which enables independent or combined driving of the coaxial inner and outer layers of stirring blades to adapt to the stirring requirements of calcium hydroxide slurry under different working conditions.

[0024] The stirring device includes a housing 10 that serves as both a support and a seal. An internal transmission cavity 11 is machined within the housing 10 to house all the transmission components. Within the transmission cavity 11, two gear transmission systems are arranged in parallel: a first gear set 20 and a second gear set 30. The first gear set 20 drives the stirring shaft 23 to rotate, and the second gear set 30 drives the sleeve shaft 33 to rotate. The stirring shaft 23 and the sleeve shaft 33 are arranged coaxially and nested, meaning the sleeve shaft 33 is loosely fitted outside the stirring shaft 23. The lower ends of both shafts extend from the bottom of the transmission cavity 11 into the external reaction vessel. A first impeller 41 is fixedly mounted on the extended end of the stirring shaft 23, and a second impeller 42 is fixedly mounted on the extended end of the sleeve shaft 33.

[0025] To achieve flexible control of power transmission, the device also includes a sliding clutch assembly 50. This assembly is connected to the sleeve shaft 33 and can slide within the transmission cavity 11 under external force. The axial movement of the sliding clutch assembly 50 drives the sleeve shaft 33 to move axially along the stirring shaft 23, thereby controlling the engagement and disengagement of the driven part (second driven gear 34) and the driving part (second driving gear 32) of the second gear set 30. When the two are engaged, the second gear set 30 is powered, and the second impeller 42 rotates (linkage mode); when the two are disengaged, the power to the second gear set 30 is cut off, the second impeller 42 stops rotating, and only the first impeller 41 works (disengagement mode).

[0026] The technical advantages of this solution are as follows: 1. Multiple functional modes: Through the sliding clutch mechanism, it realizes convenient switching between the two modes of "dual-paddle linkage" and "single-paddle operation", which meets the needs of different working conditions such as normal powerful stirring, energy saving, maintenance, and soft start, and has extremely high application flexibility.

[0027] 2. Compact structure: It adopts a coaxial nested dual-shaft output design, which integrates two output systems into the installation space of a standard mixing equipment. This solves the problems of complex structure, large space occupation and high cost of dual-motor drive schemes, and is particularly suitable for the renovation and construction of small and medium-sized tanks.

[0028] 3. Improved reliability: All gears and transmission components are sealed in the transmission cavity 11 inside the housing 10, completely isolated from the corrosive and abrasive calcium hydroxide slurry environment outside, which greatly improves the service life and operational reliability of the transmission system and reduces maintenance frequency and cost. Example 2

[0029] This embodiment will describe in detail the structure and power transmission of the first gear set 20 and the structure and switchable power transmission of the second gear set 30. See Figure 2 and Figure 3 The first gear set 20 constitutes the power transmission chain that drives the inner stirring shaft (stirring shaft 23).

[0030] Specifically, the first gear set 20 includes a drive shaft 21 driven by an external main drive motor (not shown in the figure). The drive shaft 21 is rotatably supported on the upper wall of the transmission cavity 11 by bearings. A first drive gear 22 is fixedly installed on its upper end (taking the position shown in the figure as an example). A stirring shaft 23 is vertically supported on the top and bottom walls of the transmission cavity 11 by bearings. A first driven gear 24 is fixedly installed on the upper end of the stirring shaft 23 located in the transmission cavity 11. The first drive gear 22 and the first driven gear 24 mesh externally with each other to form a reduction transmission pair (it should be noted that the transmission ratio of the first gear set 20 can be designed as constant speed or speed-increasing according to the actual production situation, which is not limited in this application).

[0031] The technical effects of this technical solution are as follows: 1. Stable power output: The power from the external motor is input through the drive shaft 21, and then stably transmitted to the stirring shaft 23 via the meshing of the first drive gear 22 and the first driven gear 24, ultimately driving the first impeller 41 to generate a rotating shear flow field. This power path is always open, ensuring the basic function of the stirring device.

[0032] 2. Determining Speed ​​and Direction: By selecting the number of teeth on the first driving gear 22 and the first driven gear 24, the operating speed of the first impeller 41 can be precisely set to meet the production process requirements of slurries such as calcium hydroxide. At the same time, the characteristics of the external meshing gear pair determine that the rotation direction of the stirring shaft 23 (and the first impeller 41) is opposite to that of the driving shaft 21, which lays the mechanical foundation for the subsequent realization of the reverse rotation of the two impellers.

[0033] See also Figure 2 and Figure 3 The second gear set 30 constitutes the power transmission chain that drives the outer stirring shaft (sleeve shaft 33). Its unique feature is that its power can be switched on and off through axial movement.

[0034] Specifically, the second gear set 30 includes another power input shaft—drive shaft 21. This shaft can be driven by another independent motor. More preferably, the second gear set 30 can be driven by the same motor connected to drive shaft 21 via a transfer case, belt, or chain drive to ensure synchronization (not shown in the figure).

[0035] The second drive shaft 31 is supported by bearings on the upper end wall of the transmission cavity 11. A second drive gear 32 is fixedly mounted on it. A sleeve shaft 33 is also supported by bearings in the transmission cavity 11, and its inner bore is coaxial with the stirring shaft 23. A second driven gear 34 is fixedly mounted on the upper end of the sleeve shaft 33 within the transmission cavity 11. The second drive gear 32 and the second driven gear 34 also form an external meshing gear pair. The special feature of the second driven gear 34 is that it can move axially together with the sleeve shaft 33, thereby achieving engagement and disengagement with the second drive gear 32.

[0036] The technical effects of the second gear set 30 are as follows: 1. A switchable power output is established: Power is input through the second drive shaft 31. When the second driven gear 34 is in the meshing position, the power is transmitted to the second driven gear 34 via the second drive gear 32, driving the sleeve shaft 33 and the second blade 42 at its end to rotate. The controllability of this path is the core of realizing the switching of working modes.

[0037] 2. Independent parameter design: The transmission ratio of the second gear set 30 (the gear ratio between the second driving gear 32 and the second driven gear 34) can be designed independently of the first gear set 20. This means that the second impeller 42 can achieve a different rotational speed than the first impeller 41, thereby providing more optimized stirring intensity for fluids in different areas, such as making the second impeller 42 at the bottom rotate at a higher speed to better prevent sedimentation.

[0038] 3. Achieving Reverse Rotation: Since the second gear set 30 is also externally meshed, the rotation direction of the sleeve shaft 33 (and the second blade 42) is opposite to that of the drive shaft 31. By designing the initial input direction of the two transmission paths, it is easy to ultimately achieve that the rotation directions of the first blade 41 and the second blade 42 are opposite, thereby generating a highly efficient and complex stirring flow field. Example 3

[0039] See Figure 3 and Figure 5 The connection between the sleeve shaft 33 and the stirring shaft 23 needs to simultaneously satisfy the seemingly contradictory requirements of transmitting torque and allowing axial relative sliding.

[0040] Specifically, although the sleeve shaft 33 and the stirring shaft 23 are coaxially nested, they are not fixedly connected. The sleeve shaft 33 can slide up and down along the axis of the stirring shaft 23 under the drive of the sliding clutch assembly 50. To achieve effective torque transmission and maintain the rotational synchronization of the two shafts during sliding, an axial key connection structure is provided between the two shafts. Specifically, one or more elongated grooves 33a (functionally equivalent to keyways) are formed along the axial direction on the inner wall of the sleeve shaft 33. Correspondingly, one or more inserts 23a (functionally equivalent to keys) are fixedly installed on the outer wall of the stirring shaft 23. The inserts 23a are precisely slidably fitted into the grooves 33a.

[0041] The technical effects of this technical solution are as follows: 1. Reliable torque transmission: When the sleeve shaft 33 needs to transmit power, the clutch assembly 50 insert 23a is tightly attached to the side of the groove 33a, which can reliably transmit the rotational motion of the stirring shaft 23 to the sleeve shaft 33, thereby driving the second blade 42 to rotate synchronously. This mechanical connection method can transmit huge torque and its reliability is far higher than friction transmission and other methods.

[0042] 2. Ensuring axial sliding freedom: This connection structure is rigid in the circumferential direction, but free in the axial direction. It does not hinder the sleeve shaft 33 from sliding freely within the preset axial stroke, which is the basis for realizing the gear clutch function.

[0043] 3. Provides precise guidance: The cooperation between the insert 23a and the groove 33a simultaneously guides the sliding of the sleeve shaft 33, ensuring that its movement trajectory is strictly along the axial direction, preventing problems such as skewness, jamming, or misalignment with the stirring shaft 23, and ensuring the accuracy and reliability of the action. Example 4

[0044] This embodiment will describe in detail the structure and operating principle of the slip clutch assembly 50, as follows: See Figure 2 , Figure 3 , Figure 4 The sliding clutch assembly 50 is an actuator that converts external linear driving force into axial displacement of the sleeve shaft 33 and manages the interference between rotary and linear motion.

[0045] Specifically, the slip clutch assembly 50 is composed of the following components working together: Adapter ring 51: It is fixedly fitted onto the outer circumference of the sleeve shaft 33. It forms a whole with the sleeve shaft 33 and rotates together.

[0046] Sliding tray 52: A disc-shaped or ring-shaped drive component. It is rotatably connected to the adapter ring block 51 via a plane bearing or a specially treated low-friction material interface. This means that the sliding tray 52 can apply axial thrust to the adapter ring block 51, causing it to move, but the two can rotate freely relative to each other in the circumferential direction.

[0047] Guide rod 53: One end is fixedly connected to the sliding tray 52, and the other end extends horizontally through the outer shell 10.

[0048] Drive cylinder: Mounted on the outer end face of housing 10, preferably a hydraulic cylinder 54, but a pneumatic cylinder can also be used. The end of its piston rod is fixedly connected to the protruding end of the guide rod 53.

[0049] Guide groove 55: formed on the side wall or end cover of the transmission cavity 11. The side of the sliding tray 52 has a protrusion or is connected to a slider, which is slidably embedded in the guide groove 55.

[0050] Work process and technical effects: 1. Engagement Process (Entering Linkage Mode): When the control system determines that the second impeller 42 needs to be activated, it sends a signal to the hydraulic cylinder 54, causing its piston rod to extend outward. The piston rod pushes the guide rod 53 to move inside the transmission chamber 11. The guide rod 53 drives the sliding tray 52 to slide inward along the guide groove 55. The sliding tray 52 then pushes the transition ring block 51, ultimately forcing the sleeve shaft 33 to overcome resistance (if any) and slide upward along the stirring shaft 23. The second driven gear 34, fixed to the upper end of the sleeve shaft 33, moves upward accordingly until it fully engages with the second driving gear 32. At this time, power is transmitted from the second driving shaft 31 through the second driving gear 32 and the second driven gear 34 to the sleeve shaft 33, and the second impeller 42 begins to rotate. Through the precise control of the external drive cylinder, the smooth and reliable engagement of the second gear set is achieved, avoiding impact and providing a second set of stirring power whenever needed.

[0051] 1. Separation Process (Entering Separation Mode): When it is necessary to stop the second blade 42 (e.g., for energy saving, maintenance, or soft start requirements), the piston rod of the hydraulic cylinder 54 retracts, moving the entire sleeve shaft 33 assembly downwards via the guide rod 53 and the sliding tray 52, causing the second driven gear 34 to disengage from the second driving gear 32. Power transmission is cut off, and the second blade 42 quickly stops rotating due to fluid resistance.

[0052] As the sleeve shaft 33 continues to descend to its final position, the insert 23a engages with the groove 33a, at which point the sleeve shaft 33 is engaged with the stirring shaft 23. The stirring shaft 23 and the sleeve shaft 33 rotate coaxially, allowing the first impeller 41 and the second impeller 42 to rotate synchronously, achieving rapid cutoff of power transmission. This single-impeller operation mode significantly reduces energy consumption. Example 5

[0053] See Figure 1 and Figure 2 The first blade 41 and the second blade 42 are the final actuators that perform work on the fluid, and their configuration directly determines the stirring effect. When the two layers of blades rotate in opposite directions, a relative velocity difference and shear rate are generated in the area between them and other areas inside the tank. This flow field can effectively break up the agglomerates of calcium hydroxide particles and destroy the gel network structure that forms when they are left to stand, fundamentally preventing "re-thickening" and sedimentation.

[0054] Meanwhile, the counter-rotating flow field can generate strong radial and axial vortices, which can effectively scour the tank walls and bottom edge areas that are difficult for traditional agitators to reach, basically eliminating the mixing dead zone, ensuring the uniformity of material concentration throughout the tank, and guaranteeing the stability of the output quality.

[0055] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A stirring device for preventing sedimentation of calcium hydroxide slurry, comprising a housing (10), wherein a transmission chamber (11) is provided inside the housing (10), characterized in that: The transmission cavity (11) is rotatably equipped with a first gear set (20) and a second gear set (30). The stirring shaft (23) of the first gear set (20) and the sleeve shaft (33) of the second gear set (30) are coaxially arranged and one end of each extends from the same end of the transmission cavity (11) to the outside. The outer ends of the stirring shaft (23) and the sleeve shaft (33) are respectively provided with a first blade (41) and a second blade (42). The stirring device further includes a sliding clutch assembly (50), which is connected to the sleeve shaft (33) and slidably disposed in the transmission cavity (11) for driving the sleeve shaft (33) to slide along its axial direction so that the second gear set (30) engages or disengages from the first gear set (20) for transmission.

2. The calcium hydroxide slurry anti-sedimentation stirring device according to claim 1, characterized in that, The first gear set (20) includes a drive shaft (21) rotatably disposed inside the transmission cavity (11) and a stirring shaft (23). One end of the drive shaft (21) is fixedly provided with a first drive gear (22), and one end of the stirring shaft (23) located inside the transmission cavity (11) is fixedly provided with a first driven gear (24). The first drive gear (22) and the first driven gear (24) mesh externally for transmission.

3. The calcium hydroxide slurry anti-sedimentation stirring device according to claim 2, characterized in that, The second gear set (30) includes a second drive shaft (31) rotatably disposed inside the transmission cavity (11) and a sleeve shaft (33) sleeved outside the stirring shaft (23). A second drive gear (32) is fixedly disposed on the second drive shaft (31), and a second driven gear (34) is fixedly disposed at one end of the sleeve shaft (33) located inside the transmission cavity (11). The second drive gear (32) and the second driven gear (34) mesh externally for transmission.

4. The calcium hydroxide slurry anti-sedimentation stirring device according to claim 3, characterized in that, The sleeve shaft (33) is coaxially arranged with the stirring shaft (23), and the sleeve shaft (33) can slide along the axial direction of the stirring shaft (23).

5. The calcium hydroxide slurry anti-sedimentation stirring device according to claim 3, characterized in that, The sliding clutch assembly (50) includes a transition ring block (51) fixedly sleeved on the outer ring side of the sleeve shaft (33), and a sliding tray (52) rotatably connected to the transition ring block (51) and capable of driving it to move axially.

6. The calcium hydroxide slurry anti-sedimentation stirring device according to claim 5, characterized in that, The sliding clutch assembly (50) further includes a guide rod (53) slidably disposed inside the transmission cavity (11). One end of the guide rod (53) extends out of the housing (10). A hydraulic cylinder (54) or a pneumatic cylinder is disposed on the outer end face of the housing (10). The piston rod end of the hydraulic cylinder (54) or the pneumatic cylinder is fixedly connected to the protruding end of the guide rod (53). The sliding tray (52) is fixedly connected to the guide rod (53).

7. The calcium hydroxide slurry anti-sedimentation stirring device according to claim 5, characterized in that, A guide groove (55) is provided on the side wall of the transmission cavity (11), and the sliding tray (52) is slidably disposed in the guide groove (55).

8. The calcium hydroxide slurry anti-sedimentation stirring device according to claim 3, characterized in that, The first blade (41) is fixedly disposed at the extended end of the stirring shaft (23), and the second blade (42) is fixedly disposed at the extended end of the sleeve shaft (33).

9. The calcium hydroxide slurry anti-sedimentation stirring device according to claim 3, characterized in that, The inner wall of the sleeve shaft (33) is provided with a groove (33a) along the axial direction, and a block (23a) is fixedly provided on the outer wall of the stirring shaft (23), and the block (23a) is slidably embedded in the groove (33a).

10. The calcium hydroxide slurry anti-sedimentation stirring device according to claim 1, characterized in that, The first blade (41) and the second blade (42) rotate in opposite directions.

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