Digestor for producing high-activity calcium hydroxide

Abstract

The invention discloses a digester for producing high-activity calcium hydroxide, and relates to the technical field of calcium hydroxide digester. Comprising a mounting rack on which a digester main body is mounted; the inner cylinder is mounted in the center of the digester main body through a bracket, the inner wall of the inner cylinder is hermetically connected with a partition plate in a vertical sliding manner, and an annular blanking channel is formed between the outer side of the inner cylinder and the inner wall of the digester main body. By arranging the liquid supply mechanism and the stirring mechanism, calcium hydroxide can be preliminarily stirred in the first stirring cavity, after preliminary stirring, the stirring mechanism is driven to move upwards based on work of the lifting control mechanism, and then a partition plate is lifted upwards through a bearing part; according to the multi-stage stirring device, materials in the first stirring cavity can cross over the top of the first stirring cavity and fall into the second stirring cavity through the annular falling channel, the upper stirring frame can stir the materials, the materials are more sufficiently conveyed into the second stirring cavity, and position switching of the materials at the bottom and the materials at the top and multi-stage stirring are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of calcium hydroxide digesters, in particular to a digester for producing high-activity calcium hydroxide. Background Art

[0002] In the production of calcium hydroxide, the digestion process is a critical step in ensuring its activity and quality. Traditional calcium hydroxide digestion equipment often suffers from problems such as uneven mixing, easy agglomeration of materials, and low digestion efficiency. These problems not only affect the quality of the calcium hydroxide product but also reduce production efficiency.

[0003] During the stirring process of traditional digesters, due to the design limitations of the stirring device, it is often difficult to achieve all-round and dead-angle stirring of materials, resulting in some materials, especially those at the bottom, being difficult to be fully stirred and digested.

[0004] After searching, the application scheme of Chinese patent application number CN202220699283.3 discloses a digester for calcium hydroxide production, including a drive assembly, which includes a drive motor, a rotating rod, a feed drum, a mixing drum and a mixing blade. A discharge pipe is provided in the middle of the bottom end of the mixing drum, and support feet are provided on both sides of the mixing drum. The drive motor is installed in the middle of the top end of the mixing drum, the feed drum is provided on both sides of the top end of the mixing drum, and the rotating rod is provided at the output shaft position of the drive motor. The digester in the above-mentioned document has the following shortcomings: the material at the bottom is difficult to be fully stirred, which affects the product quality. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a digester for producing high-activity calcium hydroxide.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A digester for producing high-activity calcium hydroxide, comprising: a mounting frame, on which a digester body is mounted; The inner cylinder is installed in the center of the digester body through a bracket. The inner wall of the inner cylinder is sealed and connected with a partition for sliding up and down. There is an annular material drop channel between the outer side of the inner cylinder and the inner wall of the digester body. The inner cylinder and the partition form a first stirring chamber, and the inner side of the bottom of the digester body forms a second stirring chamber. A liquid supply mechanism, the liquid supply mechanism is used to supply liquid to the first stirring chamber and the second stirring chamber; A stirring mechanism, a lifting control mechanism is installed on the mounting frame, and the stirring mechanism is installed on the lifting control mechanism; The stirring mechanism comprises: A stirring drive motor, wherein the output end of the stirring drive motor is connected to the stirring main shaft, a center seat is installed at the center of the partition, and a through hole is provided on the center seat for the stirring main shaft to pass through, and the stirring main shaft can rotate and move up and down in the through hole; An upper stirring frame is installed on the stirring main shaft and is located in the first stirring chamber; A lower stirring frame is installed on the stirring main shaft and is located in the second stirring chamber; The supporting part is installed on the stirring main shaft and is located below the partition.

[0007] As a preferred embodiment of the present invention: an annular slide rail is installed at the bottom of the partition, and the supporting part includes a side bracket, which is installed on the stirring main shaft, and a ball head rod is installed on the side bracket, and the top of each ball head rod slides in the annular slide rail.

[0008] As a preferred embodiment of the present invention: an annular frame is installed inside the digester body, the annular frame is located in the annular blanking channel, and steel bars evenly distributed circumferentially are installed on the annular frame, one end of the steel bar is fixed to the outer wall of the inner tube.

[0009] As a preferred embodiment of the present invention, the inner cylinder is provided with circumferentially distributed guide grooves, a plurality of vertical guide posts are installed on the outer side of the partition, and each vertical guide post slides up and down in its corresponding guide groove.

[0010] As a preferred embodiment of the present invention: the liquid supply mechanism includes a liquid supply device, the output end of the liquid supply device is connected to a first annular water box through a first delivery pipe, the first annular water box is installed on the top of the digester body, a plurality of first nozzles are installed at the bottom of the first annular water box, the first delivery pipe is connected to each first nozzle through the first annular water box; a nozzle is provided on the bottom side of the first nozzle, and the nozzle faces the center position of the inner tube.

[0011] As a preferred embodiment of the present invention: an annular partition is installed on the inner side of the digester body, the annular partition is located in the annular blanking channel, and the annular partition is located above the annular frame; a circumferentially distributed second nozzle is installed on the inner side of the digester body, the second nozzle is located below the annular partition, the outer end of the second nozzle is connected to the same second annular water box, and an output end of the liquid supply device is connected to the second annular water box through a second delivery pipe.

[0012] As a preferred embodiment of the present invention, the lifting control mechanism includes: Lifting rail, the lifting rail is installed on the mounting frame, and a lifting drive motor is installed on the top of the lifting rail; Slide seat, the slide seat slides up and down in the lifting slide rail, and the stirring drive motor is installed on the slide seat; The lifting adjustment screw is rotatably installed in the lifting slide rail, the lifting adjustment screw is transmission-connected to the output end of the lifting drive motor, and the lifting adjustment screw is connected to the inner wall of the slide seat through a thread.

[0013] As a preferred embodiment of the present invention: a cavity is provided at the top of the vertical guide column, an opening is provided at the top of the cavity, an inner flow channel is provided on the inner side of the vertical guide column and the partition, a mounting groove is provided on the circumferential outer wall of the center seat, one end of the inner flow channel is connected with the cavity, and the other end of the inner flow channel is connected with the mounting groove; a sealing plate is slidably connected in the mounting groove, the sealing plate and the center seat are connected by a second spring, a sealing column is installed on the sealing plate, and one end of the sealing column slides on the inner wall of the inner flow channel; when the top surface of the partition moves upward until it is flush with the top surface of the inner cylinder, the first nozzle is inserted into the cavity.

[0014] As a preferred embodiment of the present invention: a sealing block is installed in the cavity of the vertical guide column through a first spring, the top of the sealing block blocks the opening based on the force of the first spring, the inner diameter of the opening is smaller than the inner diameter of the cavity, and the diameter of the sealing block is smaller than the inner diameter of the cavity; an annular plate is installed on the outside of the first nozzle, and a sealing gasket is provided on the side of the annular plate close to the opening.

[0015] As a preferred embodiment of the present invention, an output port is provided at the bottom of the digester body, and a control valve for controlling the opening and closing of the output port is provided on the output port.

[0016] The beneficial effects of the present invention are: The present invention is capable of preliminarily stirring calcium hydroxide in a first stirring chamber by arranging a liquid supply mechanism and a stirring mechanism. After the preliminarily stirring, the stirring mechanism is driven to move upward based on the operation of the lifting control mechanism, and then the partition is lifted upward by the supporting part, so that the material in the first stirring chamber can pass over the top of the first stirring chamber and fall into the second stirring chamber through the annular dropping channel. The upper stirring frame can stir the material so that the material is more fully transported to the second stirring chamber, thereby realizing multi-stage stirring.

[0017] Since the material usually located at the bottom is difficult to be fully stirred, the method of the present invention can enable the material originally located at the top of the first stirring chamber to be first transported to the bottom of the second stirring chamber, and the material located at the bottom of the first stirring chamber to be transported to a position higher up the second stirring chamber; when the lifting control mechanism drives the structure to reset, based on the operation of the stirring mechanism, the material in the second stirring chamber can be fully stirred by the lower stirring frame, during which the liquid supply mechanism supplies liquid into the second stirring chamber, so that the material can be fully mixed.

[0018] The present invention arranges steel bars so that when the material falls along the annular blanking channel, the steel bars can be used to break up the material that may be agglomerated, so as to facilitate subsequent mixing processing. By arranging annular baffles, a second nozzle and other structures, it can work based on the liquid supply device to supply liquid to the second annular water box, thereby transporting the liquid to the annular blanking channel through the second nozzle, and finally reaching the second stirring chamber; the annular baffle can shield the second nozzle to a certain extent, preventing the falling material from directly contacting the second nozzle.

[0019] The present invention provides structures such as an internal flow channel, so that when discharging the material from the first stirring chamber, the liquid can be transported through the internal flow channel based on the liquid supply of the first nozzle and discharged outward from the installation groove near the center of the partition, so as to effectively flush the material down.

[0020] The present invention provides structures such as sealing blocks and sealing plates, which can prevent materials from entering during stirring by utilizing the sealing functions of the sealing plates and sealing blocks. When supplying liquid, the sealing function based on the sealing gasket can prevent liquid from overflowing, so that the liquid is sufficient to push the sealing column outward and discharge it from the installation groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 It is a structural schematic diagram of a cross-section of the digester main body of the present invention.

[0023] Figure 3 It is a structural schematic diagram of the digester body of the present invention after being cut away from another angle.

[0024] Figure 4 This is a schematic structural diagram of the first annular water box and the first nozzle of the present invention.

[0025] Figure 5 It is a structural schematic diagram of the stirring mechanism of the present invention.

[0026] Figure 6 It is a schematic structural diagram of the cross-section of the partition and vertical guide column of the present invention.

[0027] Figure 7 For the present invention Figure 6 Enlarged view of point A in the middle.

[0028] In the figure: 1-mounting frame; 2-second annular water box; 3-digester body; 4-lifting slide rail; 5-lifting drive motor; 6-stirring drive motor; 7-first annular water box; 8-first conveying pipe; 9-second conveying pipe; 10-liquid supply device; 11-control valve; 12-output port; 13-stirring main shaft; 14-upper stirring frame; 15-guide groove; 16-lower stirring frame; 17-steel bar; 18-annular frame; 19-inner cylinder; 20-annular partition; 21-first nozzle; 22-second nozzle; 23-ball head rod; 24-side bracket; 25-vertical guide column; 26-partition; 27-lifting adjustment screw; 28-nozzle; 29-sealing gasket; 30-blocking block; 31-first spring; 32-inner flow channel; 33-center seat; 34-blocking plate; 35-second spring; 36-blocking column; 37-mounting groove. DETAILED DESCRIPTION

[0029] The technical solution of the present invention will be further described in detail below in conjunction with specific implementation methods.

[0030] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0031] A digester for producing high-activity calcium hydroxide, such as Figure 1-7 As shown, it includes: a mounting frame 1, an inner cylinder 19, a liquid supply mechanism and a stirring mechanism.

[0032] Among them, the digester body 3 is installed on the mounting frame 1, and the inner cylinder 19 is installed at the center position of the digester body 3 through the bracket. The inner wall of the inner cylinder 19 is sealed and connected with a partition 26 for sliding up and down. There is an annular material drop channel between the outer side of the inner cylinder 19 and the inner wall of the digester body 3; the inner cylinder 19 and the partition 26 form a first stirring chamber, and a second stirring chamber is formed on the inner side of the bottom of the digester body 3, and the liquid supply mechanism is used to supply liquid to the first stirring chamber and the second stirring chamber.

[0033] In this embodiment, a lifting control mechanism is installed on the mounting frame 1, and the stirring mechanism is installed on the lifting control mechanism.

[0034] The stirring mechanism includes a stirring drive motor 6 , an upper stirring frame 14 , a lower stirring frame 16 and a supporting portion.

[0035] Among them, the output end of the stirring drive motor 6 is connected to the stirring main shaft 13, and a center seat 33 is installed at the center position of the partition 26. The center seat 33 is provided with a through hole for the stirring main shaft 13 to pass through. The stirring main shaft 13 can rotate and move up and down in the through hole.

[0036] The upper stirring frame 14 is installed on the stirring main shaft 13, and the upper stirring frame 14 is located in the first stirring chamber. The lower stirring frame 16 is installed on the stirring main shaft 13, and the lower stirring frame 16 is located in the second stirring chamber. The supporting part is installed on the stirring main shaft 13, and the supporting part is located below the partition 26.

[0037] By setting up a liquid supply mechanism and a stirring mechanism, calcium hydroxide can be added to the first stirring chamber, and the liquid is first supplied to the first stirring chamber by the liquid supply mechanism, and preliminary mixing is carried out based on the stirring of the upper stirring frame 14; usually, the material at the bottom is difficult to be fully stirred, so in this scheme, after the preliminary stirring, the lifting control mechanism works to drive the stirring mechanism to move upward, and then the partition 26 is lifted upward by the supporting part, so that the material in the first stirring chamber can pass over the top of the first stirring chamber and fall into the second stirring chamber through the annular dropping channel, and the upper stirring frame 14 can stir the material so that the material is more fully transported to the second stirring chamber; this method can make the material originally located at the top of the first stirring chamber be transported to the bottom of the second stirring chamber first, and the material located at the bottom of the first stirring chamber is then transported to a position higher up the second stirring chamber; when the lifting control mechanism drives the structure to reset, based on the work of the stirring mechanism, the material in the second stirring chamber can be fully stirred by the lower stirring frame 16, during which the liquid supply mechanism supplies liquid to the second stirring chamber, so that the material can be fully mixed.

[0038] Preferably, the bottom of the upper stirring frame 14 adopts a cross-bar structure parallel to the partition 26, which can more fully push the material down, and the lower stirring frame 16 adopts a V-shaped structure, which can reduce resistance when resetting.

[0039] In order to facilitate the smooth rotation of the structure; Figure 3 As shown, an annular slide rail is installed at the bottom of the partition 26, and the supporting part includes a side bracket 24, which is installed on the stirring main shaft 13. A ball head rod 23 is installed on the side bracket 24, and the top of each ball head rod 23 slides in the annular slide rail.

[0040] By providing the ball head rods 23 and the annular slide rail, the ball head rods 23 can be used to support the annular slide rail and the partition plate 26 during the rotation of the stirring main shaft 13, while ensuring the stable rotation of the structure.

[0041] In order to improve the stirring effect; Figure 2 、 Figure 3 As shown, an annular frame 18 is installed inside the digester body 3, and the annular frame 18 is located in the annular blanking channel. Steel bars 17 uniformly distributed around the circumference are installed on the annular frame 18, and one end of the steel bar 17 is fixed to the outer wall of the inner tube 19.

[0042] By providing the steel bars 17 , the materials that may be agglomerated can be broken up by the steel bars 17 when the materials fall along the annular dropping channel, so as to facilitate the subsequent mixing process.

[0043] In order to ensure the stable lifting of the partition 26; Figure 2 As shown, the inner cylinder 19 is provided with circumferentially distributed guide grooves 15 , and a plurality of vertical guide posts 25 are installed on the outer side of the partition 26 , and each vertical guide post 25 slides up and down in its corresponding guide groove 15 .

[0044] In order to facilitate the supply of liquid; Figure 1 、 Figure 2 As shown, the liquid supply mechanism includes a liquid supply device 10, the output end of the liquid supply device 10 is connected to the first annular water box 7 through the first delivery pipe 8, the first annular water box 7 is installed on the top of the digester body 3, and multiple first nozzles 21 are installed at the bottom of the first annular water box 7. The first delivery pipe 8 is connected to each first nozzle 21 through the first annular water box 7; a nozzle 28 is provided on the bottom side of the first nozzle 21, and the nozzle 28 faces the center position of the inner tube 19.

[0045] In order to facilitate the supply of liquid, Figure 1 、 Figure 2 、 Figure 3 As shown, an annular baffle 20 is installed on the inner side of the digester body 3, the annular baffle 20 is located in the annular blanking channel, and the annular baffle 20 is located above the annular frame 18; a circumferentially distributed second nozzle 22 is installed on the inner side of the digester body 3, the second nozzle 22 is located below the annular baffle 20, and the outer end of the second nozzle 22 is connected to the same second annular water box 2, and one output end of the liquid supply device 10 is connected to the second annular water box 2 through a second delivery pipe 9.

[0046] By providing structures such as the annular baffle 20 and the second nozzle 22, the liquid supply device 10 can be used to supply liquid to the second annular water box 2, thereby transporting the liquid to the annular blanking channel through the second nozzle 22, and finally reaching the second stirring chamber; the annular baffle 20 can shield the second nozzle 22 to a certain extent, preventing the falling material from directly contacting the second nozzle 22.

[0047] In order to facilitate the control of structural lifting; Figure 4 As shown, the lifting control mechanism includes: a lifting rail 4, a slide seat and a lifting adjustment screw 27.

[0048] Among them, the lifting slide rail 4 is installed on the mounting frame 1, a lifting drive motor 5 is installed on the top of the lifting slide rail 4, the slide slides up and down in the lifting slide rail 4, the stirring drive motor 6 is installed on the slide, and the lifting adjustment screw 27 is rotatably installed in the lifting slide rail 4. The lifting adjustment screw 27 is transmission-connected to the output end of the lifting drive motor 5, and the lifting adjustment screw 27 is threadedly connected to the inner wall of the slide.

[0049] In order to better send the material out of the first stirring chamber; Figure 3 、 Figure 4 and Figure 6 As shown, a cavity is provided at the top of the vertical guide column 25, and an opening is provided at the top of the cavity. An inner flow channel 32 is provided on the inner side of the vertical guide column 25 and the partition 26. A mounting groove 37 is provided on the circumferential outer wall of the center seat 33. One end of the inner flow channel 32 is connected to the cavity, and the other end of the inner flow channel 32 is connected to the mounting groove 37. A sealing plate 34 is slidably connected in the mounting groove 37. The sealing plate 34 and the center seat 33 are connected by a second spring 35. A sealing column 36 is installed on the sealing plate 34, and one end of the sealing column 36 slides on the inner wall of the inner flow channel 32. When the top surface of the partition 26 moves upward to be flush with the top surface of the inner cylinder 19, the first nozzle 21 is inserted into the cavity.

[0050] By setting up structures such as the inner flow channel 32, when the material is discharged from the first stirring chamber, based on the liquid supply of the first nozzle 21, it can be transported through the inner flow channel 32 and discharged outward from the installation groove 37 near the center of the partition 26, which can effectively flush the material down.

[0051] In order to prevent the material from entering the inner flow channel 32; Figure 6 As shown, a blocking block 30 is installed in the cavity of the vertical guide column 25 through a first spring 31. The top of the blocking block 30 blocks the opening based on the force of the first spring 31. The inner diameter of the opening is smaller than the inner diameter of the cavity, and the diameter of the blocking block 30 is smaller than the inner diameter of the cavity. An annular plate is installed on the outside of the first nozzle 21, and a sealing gasket 29 is provided on the side of the annular plate close to the opening.

[0052] By setting up structures such as the sealing block 30 and the sealing plate 34, the sealing plate 34 and the sealing block 30 can be used to prevent material from entering during stirring. When supplying liquid, the sealing of the sealing gasket 29 can prevent liquid from overflowing, so that the liquid is sufficient to push the sealing column 36 outward and discharge it from the installation groove 37.

[0053] In order to facilitate the output of materials; Figure 1 As shown, an output port 12 is provided at the bottom of the digester body 3 , and a control valve 11 for controlling the opening and closing of the output port 12 is provided on the output port 12 .

[0054] For the parts of the present invention that are not fully disclosed, those skilled in the art can ensure that the solutions of the present invention are successfully implemented based on common sense, normal thinking logic and existing technologies.

[0055] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A digester for producing high-activity calcium hydroxide, characterized in that: include: A mounting frame (1) on which a digester body (3) is mounted; The inner cylinder (19) is mounted at the center of the digester body (3) through a bracket. The inner wall of the inner cylinder (19) is sealed and slidably connected to a partition (26) up and down. An annular material drop channel is present between the outer side of the inner cylinder (19) and the inner wall of the digester body (3). The inner cylinder (19) and the partition (26) form a first stirring chamber, and the inner side of the bottom of the digester body (3) forms a second stirring chamber. a liquid supply mechanism, which is used to supply liquid to the first stirring chamber and the second stirring chamber; The stirring mechanism is provided with a lifting control mechanism installed on the mounting frame (1), and the stirring mechanism is installed on the lifting control mechanism.

2. A digester for producing high-activity calcium hydroxide according to claim 1, characterized in that, The stirring mechanism comprises: A stirring drive motor (6), the output end of the stirring drive motor (6) is connected to the stirring main shaft (13), a center seat (33) is installed at the center position of the partition (26), and a through hole for the stirring main shaft (13) to pass through is provided on the center seat (33), and the stirring main shaft (13) can rotate and move up and down in the through hole; An upper stirring frame (14), the upper stirring frame (14) is mounted on the stirring main shaft (13), and the upper stirring frame (14) is located in the first stirring chamber; A lower stirring frame (16), the lower stirring frame (16) is mounted on the stirring main shaft (13), and the lower stirring frame (16) is located in the second stirring chamber; The supporting portion is mounted on the stirring main shaft (13) and is located below the partition (26).

3. A digester for producing high-activity calcium hydroxide according to claim 2, characterized in that, An annular slide rail is installed at the bottom of the partition (26), and the supporting portion includes a side bracket (24). The side bracket (24) is installed on the stirring main shaft (13), and a ball head rod (23) is installed on the side bracket (24). The top end of each ball head rod (23) slides in the annular slide rail.

4. A digester for producing high-activity calcium hydroxide according to claim 1 or 2, characterized in that, An annular frame (18) is installed inside the digester body (3), and the annular frame (18) is located in the annular blanking channel. Steel bars (17) uniformly distributed around the circumference are installed on the annular frame (18), and one end of the steel bar (17) is fixed to the outer wall of the inner cylinder (19).

5. A digester for producing high-activity calcium hydroxide according to claim 4, characterized in that, The inner cylinder (19) is provided with guide grooves (15) distributed circumferentially, and a plurality of vertical guide pillars (25) are installed on the outer side of the partition (26), and each vertical guide pillar (25) slides up and down in its corresponding guide groove (15).

6. A digester for producing high-activity calcium hydroxide according to claim 1, characterized in that, The liquid supply mechanism comprises a liquid supply device (10), the output end of the liquid supply device (10) is connected to a first annular water box (7) via a first delivery pipe (8), the first annular water box (7) is mounted on the top of the digester body (3), a plurality of first nozzles (21) are mounted on the bottom of the first annular water box (7), the first delivery pipe (8) is connected to each of the first nozzles (21) via the first annular water box (7), and a nozzle (28) is provided on the side surface of the bottom end of the first nozzle (21), the nozzle (28) facing the center position of the inner cylinder (19).

7. A digester for producing high-activity calcium hydroxide according to claim 6, characterized in that: An annular baffle (20) is installed inside the digester body (3), the annular baffle (20) is located in the annular material dropping channel, and the annular baffle (20) is located above the annular frame (18); a circumferentially distributed second nozzle (22) is installed inside the digester body (3), the second nozzle (22) is located below the annular baffle (20), and the outer end of the second nozzle (22) is connected to the same second annular water box (2), and an output end of the liquid supply device (10) is connected to the second annular water box (2) through a second delivery pipe (9).

8. A digester for producing high-activity calcium hydroxide according to claim 1, characterized in that: The lifting control mechanism includes: A lifting slide rail (4), the lifting slide rail (4) is mounted on the mounting frame (1), and a lifting drive motor (5) is mounted on the top of the lifting slide rail (4); A slide seat, the slide seat slides up and down in the lifting slide rail (4), and the stirring drive motor (6) is installed on the slide seat; The lifting adjustment screw (27) is rotatably installed in the lifting slide rail (4), the lifting adjustment screw (27) is transmission-connected to the output end of the lifting drive motor (5), and the lifting adjustment screw (27) is connected to the inner wall of the slide seat through a thread.

9. A digester for producing high-activity calcium hydroxide according to claim 5, characterized in that: A cavity is provided at the top of the vertical guide column (25), and an opening is provided at the top of the cavity. An inner flow channel (32) is provided on the inner side of the vertical guide column (25) and the partition (26). A mounting groove (37) is provided on the circumferential outer wall of the center seat (33). One end of the inner flow channel (32) is communicated with the cavity, and the other end of the inner flow channel (32) is communicated with the mounting groove (37). A blocking plate (34) is slidably connected in the mounting groove (37). The blocking plate (34) and the center seat (33) are connected by a second spring (35). A blocking column (36) is installed on the blocking plate (34), and one end of the blocking column (36) slides on the inner wall of the inner flow channel (32). When the top surface of the partition (26) moves upward until it is flush with the top surface of the inner cylinder (19), the first nozzle (21) is inserted into the cavity.

10. A digester for producing high-activity calcium hydroxide according to claim 9, characterized in that: A blocking block (30) is installed in the cavity of the vertical guide column (25) via a first spring (31). The top of the blocking block (30) blocks the opening based on the force of the first spring (31). The inner diameter of the opening is smaller than the inner diameter of the cavity, and the diameter of the blocking block (30) is smaller than the inner diameter of the cavity. An annular plate is installed on the outside of the first nozzle (21), and a sealing gasket (29) is provided on the side of the annular plate close to the opening. An output port (12) is provided at the bottom of the digester body (3), and a control valve (11) for controlling the opening and closing of the output port (12) is provided on the output port (12).

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