A grinding device for producing calcium hydroxide

Abstract

The present invention relates to the technical field of grinding devices, and proposes a grinding device for calcium hydroxide production, including a base frame, a grinding shell fixedly connected to the surface of the base frame, a central shaft rotatably connected to the axis of the grinding shell, a stirring mechanism connected to the surface of the central shaft, a discharging mechanism connected to the surface of the grinding shell, and a column motor fixedly connected to the surface of the base frame for driving the central shaft to rotate; the discharging mechanism includes a discharging port opened on the outer surface of the grinding shell, a baffle movably connected to the surface of the grinding shell corresponding to the discharging port, a No. 1 gear fixedly connected to the surface of the grinding shell corresponding to the two ends of the baffle, and an arc-shaped rack fixedly connected to the surface of the baffle. Through the above technical scheme, the problem that the existing calcium hydroxide production process needs to be manually discharged, and the powdered calcium hydroxide is easily adhered to the inside of the device and the discharging parts, which not only causes waste, but also causes the residual calcium hydroxide in the device to deteriorate in the long run.

Description

Technical Field

[0001] The invention relates to the technical field of grinding devices, and in particular to a grinding device for producing calcium hydroxide. Background Art

[0002] Calcium hydroxide is commonly known as slaked lime and slaked lime, and its aqueous solution is called clear lime water. Calcium hydroxide has the general properties of an alkali and is a strong alkali. Calcium hydroxide is commonly used in the industrial field, and calcium hydroxide is mostly ground into powder. In this case, a calcium hydroxide grinding device is needed to grind it.

[0003] After searching, the invention provides a calcium hydroxide solid crushing and grinding device with the authorization announcement number CN113680488B, which includes: a bottom plate, on which a support mechanism is connected; a grinding mechanism, which is connected to the support mechanism. The invention crushes the calcium hydroxide solid through the cooperation of the support mechanism and the grinding mechanism, and the calcium hydroxide solid is placed in the grinding bowl manually through the feeding mechanism, which saves manpower;

[0004] However, the above-mentioned existing calcium hydroxide production process needs to be manually discharged, and the powdered calcium hydroxide is easy to adhere to the inside of the device and the discharging parts, which not only causes waste, but also causes the calcium hydroxide remaining in the device to deteriorate in the long run. For this reason, we propose a grinding device for calcium hydroxide production. Summary of the invention

[0005] The present invention provides a grinding device for calcium hydroxide production, which solves the problem mentioned in the background technology that the existing calcium hydroxide production process needs to be manually discharged, and the powdered calcium hydroxide is easy to adhere to the inside of the device and the discharging parts, which not only causes waste, but also causes the residual calcium hydroxide in the device to deteriorate in the long run.

[0006] The technical solution of the present invention is as follows:

[0007] A grinding device for calcium hydroxide production, comprising a base frame, a grinding shell is fixedly connected to the surface of the base frame, a central shaft is rotatably connected to the axis of the grinding shell, a stirring mechanism is connected to the surface of the central shaft, a discharging mechanism is connected to the surface of the grinding shell, and a column motor for driving the central shaft to rotate is fixedly connected to the surface of the base frame;

[0008] The discharging mechanism includes a discharging port opened on the outer surface of the grinding mill shell, a baffle is movably connected to the surface of the grinding mill shell corresponding to the discharging port, a No. 1 gear is fixedly connected to the surface of the grinding mill shell corresponding to both ends of the baffle, an arc-shaped rack is fixedly connected to the surface of the baffle, the lower end of the arc-shaped rack is meshingly connected to the No. 1 gear, and the outer surface of the No. 1 gear is connected to a servo motor, and the adjustment of the discharging port to be connected to the outside or closing the opening is achieved through the forward and reverse rotation of the servo motor.

[0009] Furthermore, the surface of the No. 1 gear is fixedly connected to the No. 2 gear through a cylinder, and a movable column is provided on one side of the No. 2 gear, and the surface of the movable column is fixedly connected to a straight rack meshing with the No. 2 gear, and a pushing rod is provided through the surface of the movable column, and a limiting plate is fixedly connected to the surface of the pushing rod corresponding to the inside of the movable column, and a pushing spring is connected between the limiting plate and the inner wall of the lower end of the movable column, and the top of the pushing rod is fixedly connected to a fixed block, and a convex column is fixedly connected to the surface of the central axis corresponding to the fixed block, and vibration is achieved by the convex column hitting the fixed block, and the lower end of the grinding shell is fixedly connected to a discharging plate, and the discharging plate is used for discharging materials from the device.

[0010] Furthermore, the stirring mechanism includes a sleeve fixedly connected to the surface of the central axis, a movable rod is slidably connected inside the sleeve, a return spring is connected inside the sleeve, a stirring plate is fixedly connected to the top of the movable rod, and a plurality of metal balls for grinding are arranged inside the grinding shell.

[0011] Furthermore, a crushing mechanism is fixedly connected to the upper end of the grinding shell, and the crushing mechanism includes an outer shell fixedly connected to the surface of the grinding shell through a pipe, the interior of the outer shell is rotatably connected to a crushing shaft, the surface of the crushing shaft is fixedly connected to crushing blades, the outer surface of the outer shell is fixedly connected to a crushing motor for driving the crushing shaft to rotate at the corresponding position of the crushing shaft, and the surface of the outer shell is fixedly connected to a feed frame.

[0012] Furthermore, the servo motor is fixed by a bracket, and the baffle is a plate-like structure with an arc-shaped surface, which is used to open or close the discharge port.

[0013] Furthermore, the baffle is slidably connected to the No. 1 gear, and the stability of the movement of the baffle is maintained by the No. 1 gear cooperating with the grinding shell, and the servo motor is used to drive the No. 1 gear to rotate.

[0014] Furthermore, the cylinder used to connect the first gear and the second gear is kept stable in rotation by a bracket, a rotation connection is formed between the cylinder and the bracket by a bearing, and the movable column is kept moving up and down by the bracket, and the movable column moves up and down along the bracket.

[0015] Furthermore, when the servo motor drives gear No. 1 to rotate and open the discharge port, the movable column moves to the uppermost end, and when the movable column is at the uppermost end, the convex column will hit the fixed block, and the pushing rod and the limit plate move up and down along the movable column, and the pushing rod is kept moving upward by the elastic force of the pushing spring.

[0016] Furthermore, the sleeve is a hollow cylindrical structure, the inner diameter of the sleeve is equal to the outer diameter of the movable rod, the movable rod slides along the length direction of the sleeve, and the elastic ends of the reset spring are fixedly connected to the movable rod and the central axis respectively. The metal balls are irregularly stirred by the stirring plate to achieve grinding of crushed calcium hydroxide by the metal balls. The number of the stirring mechanisms is several groups and distributed in a ring array, the stirring plate is an "I"-shaped structure, and the length of the opening of the discharge port cross-section is less than one-third of the diameter of the metal ball.

[0017] Furthermore, the crushing shaft is located at the inner axis of the outer shell, and a solenoid valve for controlling the discharge is provided on the surface of the outer shell and the grinding shell pipeline for connecting the outer shell. The crushing motor drives the crushing shaft to achieve the crushing of the calcium hydroxide blocks by the crushing blades.

[0018] The working principle and beneficial effects of the present invention are:

[0019] 1. In the present invention, the discharge mechanism can automatically open the milling shell for discharge according to the needs of the user. At the same time, vibration can be generated inside the milling shell and at the discharge plate while opening, thereby promoting the rapid discharge of calcium hydroxide ground into powder inside the milling shell, greatly reducing the adhesion of calcium hydroxide inside the milling shell or on the surface of the discharge plate.

[0020] 2. In the present invention, the stirring mechanism can be used to stir the metal balls during use, thereby promoting the collision and extrusion between the metal balls, and then grinding the crushed calcium hydroxide. At the same time, the torsional force can be used to make the metal balls collide with each other irregularly, thereby further improving the grinding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] Figure 1 It is a schematic diagram of the structure of the device of the present invention;

[0023] Figure 2 It is a schematic diagram of a partial structure of the device of the present invention;

[0024] Figure 3 For the present invention Figure 2 A schematic diagram of a local structure cut away from another perspective;

[0025] Figure 4 It is a schematic diagram of the partial structure of the crushing mechanism of the present invention;

[0026] Figure 5 It is a schematic diagram of a partial structure of the stirring mechanism of the present invention;

[0027] Figure 6 It is a schematic diagram of the partial structure of the discharging mechanism of the present invention;

[0028] Figure 7 It is a schematic diagram of the local structure of the movable column of the present invention.

[0029] In the figure: 1. base frame; 2. grinding shell; 3. middle axis; 4. crushing mechanism; 41. outer shell; 42. crushing shaft; 43. crushing blade; 44. crushing motor; 45. feed frame; 5. stirring mechanism; 51. sleeve; 52. movable rod; 53. reset spring; 54. stirring plate; 6. discharging mechanism; 61. discharging port; 62. baffle; 63. arc-shaped rack; 64. No. 1 gear; 65. No. 2 gear; 66. servo motor; 67. movable column; 68. straight rack; 69. push rod; 610. limit plate; 611. push spring; 612. fixed block; 613. convex column; 7. discharging plate; 8. column motor; 9. metal ball. DETAILED DESCRIPTION

[0030] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0031] like Figure 1~Figure 4 As shown, this embodiment proposes a grinding device for calcium hydroxide production, including a base frame 1, a grinding shell 2 is fixedly connected to the surface of the base frame 1, a central axis 3 is rotatably connected to the axis center of the grinding shell 2, a stirring mechanism 5 is connected to the surface of the central axis 3, a discharging mechanism 6 is connected to the surface of the grinding shell 2, and a column motor 8 for driving the central axis 3 to rotate is fixedly connected to the surface of the base frame 1;

[0032] A crushing mechanism 4 is fixedly connected to the upper end of the grinding shell 2, and the crushing mechanism 4 includes an outer shell 41 fixedly connected to the surface of the grinding shell 2 through a pipeline, a crushing shaft 42 is rotatably connected inside the outer shell 41, and crushing leaves 43 are fixedly connected to the surface of the crushing shaft 42. A crushing motor 44 for driving the crushing shaft 42 to rotate is fixedly connected to the outer surface of the outer shell 41 corresponding to the crushing shaft 42, and a feeding frame 45 is fixedly connected to the surface of the outer shell 41.

[0033] The crushing shaft 42 is located at the inner axis of the outer shell 41. The surface of the pipeline connecting the outer shell 41 and the grinding shell 2 is provided with an electromagnetic valve for controlling the discharge. The crushing shaft 42 is driven by the crushing motor 44 to enable the crushing blades 43 to crush the calcium hydroxide blocks.

[0034] In this embodiment, the calcium hydroxide block can be quickly broken into relatively small fragments, thereby facilitating the subsequent grinding process.

[0035] During use, the user can first pour the stone-like calcium hydroxide into the interior of the outer shell 41 through the feeding frame 45, and then start the crushing motor 44, and drive the crushing shaft 42 to rotate at high speed through the crushing motor 44, so that the crushing leaves 43 follow the rotation to crush the calcium hydroxide stones. After the crushing is completed, the solenoid valve on the lower pipe is opened to allow the crushed raw materials to enter the interior of the grinding shell 2 and enter the next process. Example

[0036] like Figure 6~Figure 7 As shown, on the basis of Example 1, it is further proposed that the discharging mechanism 6 includes a discharging port 61 opened on the outer surface of the grinding shell 2, a baffle 62 is movably connected to the surface of the grinding shell 2 corresponding to the discharging port 61, a No. 1 gear 64 is fixedly connected to the surface of the grinding shell 2 corresponding to the two ends of the baffle 62, an arc-shaped rack 63 is fixedly connected to the surface of the baffle 62, the lower end of the arc-shaped rack 63 is meshingly connected to the No. 1 gear 64, and the outer surface of the No. 1 gear 64 is connected to a servo motor 66, and the adjustment of the discharging port 61 to be connected to the outside or closing the opening is achieved through the forward and reverse rotation of the servo motor 66.

[0037] The surface of the No. 1 gear 64 is fixedly connected to the No. 2 gear 65 through a cylinder, and a movable column 67 is arranged on one side of the No. 2 gear 65. The surface of the movable column 67 is fixedly connected to a straight rack 68 meshing with the No. 2 gear 65, and a pushing rod 69 is arranged through the surface of the movable column 67. The surface of the pushing rod 69 is fixedly connected to a limiting plate 610 corresponding to the inside of the movable column 67, and a pushing spring 611 is connected between the limiting plate 610 and the inner wall of the lower end of the movable column 67. The top of the pushing rod 69 is fixedly connected to a fixed block 612, and the surface of the central axis 3 is fixedly connected to the fixed block 612. The fixed block 612 is vibrated by beating the fixed block 612 by the movable column 613. The lower end of the grinding shell 2 is fixedly connected to a discharging plate 7, and the discharging plate 7 is used for discharging the device.

[0038] The servo motor 66 is fixed by the bracket, and the baffle 62 is a plate-like structure with an arc-shaped surface, which is used to open or close the opening of the discharge port 61; the baffle 62 and the No. 1 gear 64 are slidingly connected, and the stability of the movement of the baffle 62 is maintained by the No. 1 gear 64 cooperating with the grinding shell 2, and the servo motor 66 is used to drive the No. 1 gear 64 to rotate; the cylinder used to connect the No. 1 gear 64 and the No. 2 gear 65 is kept stable in rotation by the bracket, and a rotational connection is formed between the cylinder and the bracket through a bearing, and the movable column 67 is kept moving up and down by the bracket, and the movable column 67 moves up and down along the bracket.

[0039] When the servo motor 66 drives the No. 1 gear 64 to rotate and open the discharge port 61, the movable column 67 moves to the uppermost end, and when the movable column 67 is at the uppermost end, the protruding column 613 will hit the fixed block 612, and the pushing rod 69 and the limiting plate 610 will move up and down along the movable column 67, and the pushing rod 69 is kept moving upward by the elastic force of the pushing spring 611.

[0040] In this embodiment, when the calcium hydroxide inside the grinding shell 2 is fully ground into the required powder and needs to be discharged, the user can start the servo motor 66, so that the servo motor 66 drives the No. 1 gear 64 to rotate clockwise, and the No. 1 gear 64 rotates to drive the arc-shaped rack 63 to rotate synchronously, so that the opening of the discharge port 61 can be opened, so as to discharge the material, and the powder body falls on the inner surface of the discharge plate 7, and falls below under the action of gravity, which can prevent the bottom from being easily received;

[0041] In the above-mentioned discharging process, while the No. 1 gear 64 rotates clockwise, the No. 2 gear 65 will rotate clockwise synchronously, and the No. 2 gear 65 will make the movable column 67 move upward. When the movable column 67 moves upward to the maximum, the opening of the discharge port 61 is just completely exposed. At this time, the powder material inside the grinding shell 2 falls on the inner side of the discharge plate 7 under the action of gravity and is finally received by the container. At the same time, the fixed block 612 at the upper end of the pushing rod 69 will be continuously moved downward by the convex column 613, and the lower end of the pushing rod 69 will periodically hit the discharge plate 7, thereby causing the discharge plate 7 to vibrate. At the same time, the central axis 3 will also vibrate due to the hitting of the convex column 613. After the material body is discharged, the calcium hydroxide adhered to the inside of the grinding shell 2 and the inner surface of the discharge plate 7 can be quickly shaken off by the vibration of the discharge plate 7 and the vibration of the central axis 3, so as to be discharged. The whole process is an automated application. At the same time, the technical means of vibration can quickly discharge the material body while reducing the adhesion of calcium hydroxide. Example

[0042] like Figure 5As shown, on the basis of Example 1, it is further proposed that a stirring mechanism 5 includes a sleeve 51 fixedly connected to the surface of the central axis 3, a movable rod 52 is slidably connected inside the sleeve 51, a return spring 53 is connected inside the sleeve 51, a stirring plate 54 is fixedly connected to the top of the movable rod 52, and a plurality of metal balls 9 for grinding are arranged inside the grinding shell 2.

[0043] The sleeve 51 is a hollow cylindrical structure. The inner diameter of the sleeve 51 is equal to the outer diameter of the movable rod 52. The movable rod 52 slides along the length direction of the sleeve 51. The elastic ends of the reset spring 53 are fixedly connected to the movable rod 52 and the central axis 3 respectively. The metal balls 9 are irregularly stirred by the stirring plate 54 to achieve the grinding of the crushed calcium hydroxide by the metal balls 9. The number of stirring mechanisms 5 is several groups and they are distributed in a ring array. The stirring plate 54 is an "I"-shaped structure. The length of the cross-sectional opening of the discharge port 61 is less than one-third of the diameter of the metal ball 9.

[0044] In this embodiment, after calcium hydroxide enters the interior of the grinding shell 2, the column motor 8 is started, and the column motor 8 drives the central axis 3 to rotate. During the rotation of the central axis 3, the sleeve 51 is driven to rotate, and the movable rod 52 is driven to rotate through the sleeve 51, and the metal ball 9 is stirred through the stirring plate 54. Some of the metal balls 9 will be picked up by the stirring plate 54 to form a stirring effect. At the same time, because the stirring plate 54 has different contact points with the metal balls 9, it will be twisted around the axis of the movable rod 52. The I-shaped stirring plate 54 will push the metal balls 9 to fly out. After the metal balls 9 fly out, the reset spring Under the reaction force of the spring 53, the stirring plate 54 will complete the reset, maintain the initial state, and move the metal ball 9 again. The I-shaped stirring plate 54 ensures the moving effect of the metal ball 9, and the reset spring 53 provides the reset force, so that the metal balls 9 can collide and push each other in an irregular form inside the grinding shell 2, thereby promoting the mutual friction between the metal balls 9, thereby making the grinding efficiency higher and the application effect better; at the same time, when a group of stirring plates 54 moves more metal balls 9, the metal balls 9 will gradually be evenly distributed inside the grinding shell 2, and the grinding effect will be better.

[0045] In summary, during use, the user can first pour the stone-like calcium hydroxide into the interior of the outer shell 41 through the feeding frame 45, and then start the crushing motor 44, and drive the crushing shaft 42 to rotate at a high speed through the crushing motor 44, so that the crushing blades 43 follow the rotation to crush the calcium hydroxide stone. After the crushing is completed, the electromagnetic valve on the lower pipeline is opened to allow the crushed raw materials to enter the interior of the grinding shell 2 and enter the next process;

[0046] After calcium hydroxide enters the inside of the grinding shell 2, the column motor 8 is started, and the column motor 8 drives the central shaft 3 to rotate. During the rotation of the central shaft 3, the sleeve 51 is driven to rotate, and the movable rod 52 is driven to rotate through the sleeve 51, and the metal balls 9 are stirred by the stirring plate 54. Some of the metal balls 9 will be picked up by the stirring plate 54 to form a stirring effect. At the same time, because the stirring plate 54 has different contact points with the metal balls 9, it will be twisted around the axis of the movable rod 52. The I-shaped stirring plate 54 will push the metal balls 9 to fly out. After the metal balls 9 fly out, the reset spring 53 Under the reaction force, the stirring plate 54 will complete the reset, maintain the initial state, and move the metal balls 9 again. The I-shaped stirring plate 54 ensures the moving effect of the metal balls 9, and the reset spring 53 provides the reset force, so that the metal balls 9 can collide and push each other in an irregular form inside the grinding shell 2, thereby promoting the mutual friction between the metal balls 9, thereby making the grinding efficiency higher and the application effect better; at the same time, when a group of stirring plates 54 moves more metal balls 9, the metal balls 9 will be gradually evenly distributed inside the grinding shell 2, and the grinding effect is better.

[0047] When the calcium hydroxide in the grinding shell 2 is fully ground into the required powder and needs to be discharged, the user can start the servo motor 66, so that the servo motor 66 drives the No. 1 gear 64 to rotate clockwise, and the No. 1 gear 64 rotates to drive the arc-shaped rack 63 to rotate synchronously, so that the opening of the discharge port 61 can be opened, so as to discharge the powder, and the powder body falls on the inner surface of the discharge plate 7, and falls below under the action of gravity, which can prevent the bottom from being easily received;

[0048] In the above-mentioned discharging process, while the No. 1 gear 64 rotates clockwise, the No. 2 gear 65 will rotate clockwise synchronously, and the No. 2 gear 65 will make the movable column 67 move upward. When the movable column 67 moves upward to the maximum, the opening of the discharge port 61 is just completely exposed. At this time, the powder material inside the grinding shell 2 falls on the inner side of the discharge plate 7 under the action of gravity and is finally received by the container. At the same time, the fixed block 612 at the upper end of the pushing rod 69 will be continuously moved downward by the convex column 613, and the lower end of the pushing rod 69 will periodically hit the discharge plate 7, thereby causing the discharge plate 7 to vibrate. At the same time, the central axis 3 will also vibrate due to the hitting of the convex column 613. After the material body is discharged, the calcium hydroxide adhered to the inside of the grinding shell 2 and the inner surface of the discharge plate 7 can be quickly shaken off by the vibration of the discharge plate 7 and the vibration of the central axis 3, so as to be discharged. The whole process is an automated application. At the same time, the technical means of vibration can quickly discharge the material body while reducing the adhesion of calcium hydroxide.

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A grinding device for producing calcium hydroxide, comprising a base frame (1), a grinding shell (2) being fixedly connected to the surface of the base frame (1), characterized in that: The center of the grinding shell (2) is rotatably connected to a central shaft (3), the surface of the central shaft (3) is connected to a stirring mechanism (5), the surface of the grinding shell (2) is connected to a discharging mechanism (6), and the surface of the base frame (1) is fixedly connected to a column motor (8) for driving the central shaft (3) to rotate; The discharging mechanism (6) comprises a discharging port (61) provided on the outer surface of the grinding shell (2); a baffle (62) is movably connected to the surface of the grinding shell (2) corresponding to the discharging port (61); a first gear (64) is fixedly connected to the surface of the grinding shell (2) corresponding to both ends of the baffle (62); an arc-shaped rack (63) is fixedly connected to the surface of the baffle (62); the lower end of the arc-shaped rack (63) is meshingly connected to the first gear (64); a servo motor (66) is connected to the outer surface of the first gear (64); and the discharging port (61) is adjusted to be connected to the outside or closed by the forward and reverse rotation of the servo motor (66); The surface of the first gear (64) is fixedly connected to the second gear (65) via a cylinder; a movable column (67) is provided on one side of the second gear (65); the surface of the movable column (67) is fixedly connected to a rectilinear rack (68) meshing with the second gear (65); a push rod (69) is provided through the surface of the movable column (67); a limit plate (610) is fixedly connected to the surface of the push rod (69) corresponding to the inside of the movable column (67); a push spring (611) is connected between the limit plate (610) and the inner wall of the lower end of the movable column (67); a fixed block (612) is fixedly connected to the top of the push rod (69); a convex column (613) is fixedly connected to the surface of the central shaft (3) corresponding to the fixed block (612); the convex column (613) beats the fixed block (612) to achieve vibration; a discharge plate (7) is fixedly connected to the lower end of the grinding shell (2); the discharge plate (7) is used for discharging materials of the device; The servo motor (66) is fixed by a bracket, and the baffle (62) is a plate-like structure with an arc-shaped surface, and is used to open or close the opening of the discharge port (61); The baffle plate (62) and the first gear (64) are slidably connected, and the first gear (64) cooperates with the grinding shell (2) to maintain the stability of the movement of the baffle plate (62), and the servo motor (66) is used to drive the first gear (64) to rotate; The cylinder used to connect the first gear (64) and the second gear (65) is kept in rotation stability by a bracket, and a rotation connection is formed between the cylinder and the bracket via a bearing, and the movable column (67) is kept in up and down movement by the bracket, and the movable column (67) moves up and down along the bracket; When the servo motor (66) drives the first gear (64) to rotate and open the discharge port (61), the movable column (67) moves to the uppermost end, and when the movable column (67) is located at the uppermost end, the protruding column (613) hits the fixed block (612), and the pushing rod (69) and the limiting plate (610) move up and down along the movable column (67), and the elastic force of the pushing spring (611) keeps the pushing rod (69) moving upward.

2. The calcium hydroxide production grinding device according to claim 1, characterized in that The stirring mechanism (5) comprises a sleeve (51) fixedly connected to the surface of the central shaft (3), a movable rod (52) being slidably connected inside the sleeve (51), a return spring (53) being connected inside the sleeve (51), a stirring plate (54) being fixedly connected to the top end of the movable rod (52), and a plurality of metal balls (9) for grinding are arranged inside the grinding shell (2).

3. The grinding device for producing calcium hydroxide according to claim 1, wherein A crushing mechanism (4) is fixedly connected to the upper end of the grinding shell (2), the crushing mechanism (4) comprising an outer shell (41) fixedly connected to the surface of the grinding shell (2) via a pipeline, a crushing shaft (42) is rotatably connected inside the outer shell (41), a crushing blade (43) is fixedly connected to the surface of the crushing shaft (42), a crushing motor (44) for driving the crushing shaft (42) to rotate is fixedly connected to the outer surface of the outer shell (41) corresponding to the crushing shaft (42), and a feeding frame (45) is fixedly connected to the surface of the outer shell (41).

4. The grinding device for producing calcium hydroxide according to claim 2, wherein The sleeve (51) is a hollow cylindrical structure. The inner diameter of the sleeve (51) is equal to the outer diameter of the movable rod (52). The movable rod (52) slides along the length direction of the sleeve (51). The elastic ends of the return spring (53) are respectively fixedly connected to the movable rod (52) and the central axis (3). The metal balls (9) are irregularly stirred by the stirring plate (54) to achieve grinding of the crushed calcium hydroxide by the metal balls (9). The number of the stirring mechanisms (5) is a plurality of groups and they are distributed in a ring array. The stirring plate (54) is an "I"-shaped structure. The length of the cross-sectional opening of the discharge port (61) is less than one third of the diameter of the metal ball (9).

5. The grinding device for producing calcium hydroxide according to claim 3, wherein The crushing shaft (42) is located at the inner axis of the outer shell (41), and a solenoid valve for controlling discharge is provided on the surface of a pipe for connecting the outer shell (41) and the grinding shell (2). The crushing motor (44) drives the crushing shaft (42) to achieve the crushing of the calcium hydroxide blocks by the crushing blades (43).

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