Multi-stage digester for producing calcium hydroxide with high specific surface area

By using adjustment and auxiliary components of a multi-stage digester, the problem of inaccurate control of quicklime and water dosage was solved, achieving efficient and stable calcium hydroxide production, improving product purity and production efficiency, and reducing energy consumption.

CN223921312UActive Publication Date: 2026-02-17BEIJING YUANMAI NEW MATERIALS CO LTD
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Patent Information

Application Number
CN202520172881.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-24
Publication Date
2026-02-17
Estimated Expiration
2035-01-24

AI Technical Summary

Technical Problem

Existing digesters cannot precisely control the dosage during the mixing of quicklime and water, resulting in a decrease in the quality of high-surface-area calcium hydroxide and affecting production efficiency.

Method used

Design a multi-stage digester, including adjustment and auxiliary components, to improve reaction efficiency and product purity by precisely controlling the dosage of water, additives, and quicklime, and by utilizing a high-efficiency heat exchanger and motor for precise temperature and time control.

Benefits of technology

It enables precise control of quicklime and water dosage, improves calcium hydroxide production efficiency, enhances the production capacity and safety of the digester, and reduces energy consumption and production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a multistage digester for producing calcium hydroxide with high specific surface area, which comprises a digester frame, an adjusting component is arranged at the top of the digester frame, and an auxiliary component is arranged at the bottom of the digester frame; the adjusting assembly comprises an adjusting frame fixedly mounted at the top of the digester frame, a rotating plate is rotationally mounted in the adjusting frame, a notch is formed in one side of the rotating plate, fixed plates are fixedly mounted in the notch, a supporting plate is slidably mounted between the fixed plates, a moving plate is fixedly mounted at the top of the supporting plate, and a moving block is fixedly mounted at the bottom of the supporting plate. The dosage of water, auxiliaries and quick lime in the digester frame can be accurately controlled according to actual requirements through the arranged adjusting assembly, so that the situation that the quality of calcium hydroxide is reduced due to the fact that the dosage of the quick lime and the dosage of the water cannot be accurately controlled is prevented.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of digestor, concretely relates to a multistage digestor for high specific surface calcium hydroxide production. BACKGROUND

[0002] The multistage digestor for high specific surface calcium hydroxide is the most core equipment in the quicklime digestion system. In the process of converting the quicklime raw material into high specific surface calcium hydroxide product, the digestor not only bears the main responsibility of chemical reaction, but also directly influences the final specific surface area, pore volume and production efficiency of the product.

[0003] When the digestor is in use, the staff needs to pour the quicklime into the digestor frame, pour a small amount of water into the digestor frame, start the heating device to heat the digestor frame, start the motor to stir the quicklime and water through the stirring rod, and gradually add more water to continue the reaction.

[0004] Because the dosage of the quicklime and water cannot be accurately controlled in the process of stirring the quicklime and water in the digestor, the quality of the calcium hydroxide produced by the digestor is reduced, thereby reducing the production effect of the digestor, and there is an urgent need to design a multistage digestor for high specific surface calcium hydroxide production to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a multistage digestor for high specific surface calcium hydroxide production to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] The utility model discloses a digestor frame is provided with adjustment assembly on the top, and is provided with auxiliary assembly on the bottom.

[0008] The adjustment assembly includes an adjustment frame fixedly installed on the top of the digestor frame, a rotating plate rotatably installed in the adjustment frame, a slot opened on one side of the rotating plate, a fixed plate fixedly installed in the slot, a supporting plate slidingly installed between the fixed plates, a moving plate fixedly installed on the top of the supporting plate, a moving block fixedly installed on the bottom of the supporting plate, an inclined groove opened on the bottom of the moving block, a circular groove opened on one side of the digestor frame and a counterweight fixedly installed on the top plate of the moving block.

[0009] The adjustment component can precisely control the dosage of water, additives, and quicklime within the digester frame according to actual needs, thereby preventing the inability to accurately control the dosage of quicklime and water, which could lead to a decrease in the quality of calcium hydroxide. This increases the production efficiency of the digester, providing efficient and stable digestion capacity, an intelligent control system, and reliable sealing and safety.

[0010] A first L-shaped plate is fixedly installed on one side of the digester frame, a first electric push rod is fixedly installed on one side of the first L-shaped plate, a conical block is fixedly installed at the output end of the first electric push rod, a quicklime box is fixedly installed on the top of the adjustment frame, and a connecting groove is provided between the adjustment frame and the digester frame.

[0011] Several control frames are fixedly installed on the top of the digester frame. A first connecting block is fixedly installed on one side of each control frame, and a second connecting block is fixedly installed on the other side of each control frame. The first connecting block is fixedly connected to the digester frame. A water tank and an auxiliary agent tank are fixedly installed on the top of the digester frame. A first through groove is formed between the first connecting block and the digester frame, and a second through groove is formed between the second connecting block and the water tank and the auxiliary agent tank. A first one-way valve is installed in the first through groove, and a second one-way valve is installed in the second through groove.

[0012] A sliding groove is provided on one side of the control frame, and a slider is slidably installed in the sliding groove. A second L-shaped plate is fixedly installed on one side of the control frame, and a second electric push rod is fixedly installed on one side of the second L-shaped plate. The slider is fixedly connected to the output end of the second electric push rod.

[0013] The auxiliary components include a high-efficiency heat exchanger, a control device, a processing device, a pressure gauge device, a safety valve, a motor, a stirring rod, and a discharge pipe. The high-efficiency heat exchanger is located at the bottom of the digester frame, the control device is located in front of the high-efficiency heat exchanger, the processing device is located in front of the high-efficiency heat exchanger, and the pressure gauge device is located in front of the high-efficiency heat exchanger.

[0014] The safety valve is located on the top of the digester frame, the motor is fixedly installed on the top of the digester frame, the stirring rod is rotatably installed on the top of the inner wall of the digester frame, the stirring rod is connected to the output end of the motor, a groove is provided between the digester frame and the high-efficiency heat exchanger, and the discharge pipe is fixedly connected to the outer surface of the digester frame.

[0015] In the above technical solution, the multi-stage digester for the production of high specific surface area calcium hydroxide provided by this utility model has the following beneficial effects:

[0016] 1. The adjustment component can precisely control the dosage of water, additives, and quicklime within the digester frame according to actual needs, thereby preventing the inability to accurately control the dosage of quicklime and water, which could lead to a decrease in the quality of calcium hydroxide. This increases the production efficiency of the digester, providing efficient and stable digestion capacity, an intelligent control system, and reliable sealing and safety.

[0017] 2. The auxiliary components can precisely control the reaction parameters through the control device, thereby improving the product purity, product stability, product specific surface area and pore volume.

[0018] 3. The high-efficiency heat exchanger and motor can precisely control the reaction temperature and reaction time according to actual needs, thereby making full use of the heat energy in the reaction process, improving thermal efficiency, reducing energy consumption, and recovering and reusing the heat energy generated in the reaction process, further reducing energy consumption, thereby reducing unnecessary material waste and energy consumption, and reducing production costs. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a schematic diagram of the structure of a multi-stage digester for the production of high specific surface area calcium hydroxide according to an embodiment of the present invention.

[0021] Figure 2 This is a schematic cross-sectional view of a multi-stage digester for the production of high specific surface area calcium hydroxide according to an embodiment of the present invention.

[0022] Figure 3 This is a schematic diagram of the adjustment component structure provided in an embodiment of a multi-stage digester for the production of high specific surface area calcium hydroxide according to this utility model.

[0023] Figure 4 This is a schematic diagram of the adjustment frame structure provided in an embodiment of a multi-stage digester for the production of high specific surface area calcium hydroxide according to this utility model.

[0024] Figure 5 This is a schematic cross-sectional view of the adjustment frame structure provided in an embodiment of a multi-stage digester for the production of high specific surface area calcium hydroxide according to this utility model.

[0025] 1. Digester frame; 2. Adjustment assembly; 3. Auxiliary assembly; 4. Adjustment frame; 5. Rotating plate; 6. Groove; 7. Fixing plate; 8. Support plate; 9. Moving plate; 10. Moving block; 11. Inclined groove; 12. Circular groove; 13. Counterweight block; 14. First L-shaped plate; 15. First electric push rod; 16. Conical block; 17. Control frame; 18. First connecting block; 19. First through groove; 20. Water tank; 21. Additive tank; 2 2. Second through channel; 23. First check valve; 24. Second check valve; 25. Quicklime box; 26. Connecting channel; 27. Slide groove; 28. Sliding block; 29. ​​Second L-shaped plate; 30. Second electric push rod; 31. High-efficiency heat exchanger; 32. Control device; 33. Processing device; 34. Pressure gauge device; 35. Safety valve; 36. Motor; 37. Stirring rod; 38. Discharge pipe; 39. Groove; 40. Second connecting block. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] like Figures 1-5 As shown in the figure, this utility model provides a multi-stage digester for the production of high specific surface area calcium hydroxide.

[0028] It includes a digestive organ frame 1, an adjustment component 2 is provided at the top of the digestive organ frame 1, and an auxiliary component 3 is provided at the bottom of the digestive organ frame 1;

[0029] Adjustment component 2 includes an adjustment frame 4 fixedly installed on the top of digester frame 1. A rotating plate 5 is rotatably installed inside the adjustment frame 4. A slot 6 is opened on one side of the rotating plate 5. A fixed plate 7 is fixedly installed in the slot 6. A support plate 8 is slidably installed between the fixed plates 7. A movable plate 9 is fixedly installed on the top of the support plate 8. A movable block 10 is fixedly installed on the bottom of the support plate 8. An inclined groove 11 is opened on the bottom of the movable block 10. A circular groove 12 is opened on one side of the digester frame 1. A counterweight block 13 is fixedly installed on the top plate of the movable block 10. An adjustment control device 32 is adjusted according to actual needs. The control device 32 controls the first electric push rod 15 to drive the cone. The cone block 16 moves, and the cone block 16 drives the moving plate 9 to move through the moving block 10 and the support plate 8, so as to adjust the dosage of quicklime. The second electric push rod 30 is controlled to drive the slider 28 to move, so that water and additives enter the slide 27 through the second channel 22 from the second one-way valve 24, and are injected into the digester frame 1 through the first one-way valve 23 from the first channel 19. The motor 36 and the high-efficiency heat exchanger 31 are controlled. The motor 36 stirs the water, additives and quicklime through the stirring rod 37, and the high-efficiency heat exchanger 31 heats the water, additives and quicklime through the digester frame 1.

[0030] The adjustment component 2 can precisely control the dosage of water, additives and quicklime in the digester frame 1 according to actual needs, thereby preventing the situation where the dosage of quicklime and water cannot be precisely controlled, which would lead to a decrease in the quality of calcium hydroxide. This increases the production efficiency of the digester, thus providing efficient and stable digestion capacity, intelligent control system and reliable sealing and safety.

[0031] Reference Figure 4 In this embodiment, a first L-shaped plate 14 is fixedly installed on one side of the digester frame 1, a first electric push rod 15 is fixedly installed on one side of the first L-shaped plate 14, a conical block 16 is fixedly installed at the output end of the first electric push rod 15, a quicklime box 25 is fixedly installed on the top of the adjustment frame 4, and a connecting groove 26 is provided between the adjustment frame 4 and the digester frame 1.

[0032] A number of control frames 17 are fixedly installed on the top of the digester frame 1. A first connecting block 18 is fixedly installed on one side of the control frame 17, and a second connecting block 40 is fixedly installed on one side of the control frame 17. The first connecting block 18 is fixedly connected to the digester frame 1. A water tank 20 and an auxiliary agent tank 21 are fixedly installed on the top of the digester frame 1. A first through groove 19 is opened between the first connecting block 18 and the digester frame 1. A second through groove 22 is opened between the second connecting block 40 and the water tank 20 and the auxiliary agent tank 21. A first one-way valve 23 is installed in the first through groove 19, and a second one-way valve 24 is installed in the second through groove 22.

[0033] A slide groove 27 is provided on one side of the control frame 17, and a slider 28 is slidably installed in the slide groove 27. A second L-shaped plate 29 is fixedly installed on one side of the control frame 17, and a second electric push rod 30 is fixedly installed on one side of the second L-shaped plate 29. The slider 28 is fixedly connected to the output end of the second electric push rod 30.

[0034] Reference Figure 2 The auxiliary component 3 in this embodiment includes a high-efficiency heat exchanger 31, a control device 32, a processing device 33, a pressure gauge device 34, a safety valve 35, a motor 36, a stirring rod 37, and a discharge pipe 38. The high-efficiency heat exchanger 31 is located at the bottom of the digester frame 1, the control device 32 is located in front of the high-efficiency heat exchanger 31, the processing device 33 is located in front of the high-efficiency heat exchanger 31, and the pressure gauge device 34 is located in front of the high-efficiency heat exchanger 31.

[0035] The auxiliary component 3 can precisely control the reaction parameters through the control device 32, thereby improving product purity, product stability, product specific surface area and pore volume.

[0036] The high-efficiency heat exchanger 31 and motor 36 can precisely control the reaction temperature and reaction time according to actual needs, thereby making full use of the heat energy in the reaction process, improving thermal efficiency, reducing energy consumption, and recovering and reusing the heat energy generated in the reaction process, further reducing energy consumption, thereby reducing unnecessary material waste and energy consumption, and reducing production costs.

[0037] Safety valve 35 is located on the top of digester frame 1, motor 36 is fixedly installed on the top of digester frame 1, stirring rod 37 is rotatably installed on the top of the inner wall of digester frame 1, stirring rod 37 is connected to the output end of motor 36, groove 39 is provided between digester frame 1 and high-efficiency heat exchanger 31, and discharge pipe 38 is fixedly connected to the outer surface of digester frame 1.

[0038] Working principle: First, adjust the control device 32 according to actual needs. The control device 32 controls the first electric push rod 15 to drive the conical block 16 to move. The conical block 16 drives the moving plate 9 to move through the moving block 10 and the support plate 8, so as to adjust the dosage of quicklime. Control the second electric push rod 30 to drive the slider 28 to move, so that water and additives enter the slide 27 through the second channel 22 from the second one-way valve 24, and are injected into the digester frame 1 through the first one-way valve 23 from the first channel 19. Control the motor 36 and the high-efficiency heat exchanger 31. The motor 36 stirs the water, additives and quicklime through the stirring rod 37, and the high-efficiency heat exchanger 31 heats the water, additives and quicklime through the digester frame 1.

[0039] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A multi-stage digester for the production of high specific surface area calcium hydroxide, comprising a digester frame (1), characterized in that, The digestive frame (1) is provided with an adjustment component (2) at the top and an auxiliary component (3) at the bottom. The adjustment assembly (2) includes an adjustment frame (4) fixedly installed on the top of the digester frame (1), a rotating plate (5) is rotatably installed inside the adjustment frame (4), a slot (6) is opened on one side of the rotating plate (5), a fixing plate (7) is fixedly installed inside the slot (6), a support plate (8) is slidably installed between the fixing plates (7), a movable plate (9) is fixedly installed on the top of the support plate (8), a movable block (10) is fixedly installed on the bottom of the support plate (8), an inclined groove (11) is opened on the bottom of the movable block (10), a circular groove (12) is opened on one side of the digester frame (1), and a counterweight block (13) is fixedly installed on the top plate of the movable block (10).

2. A multi-stage digester for the production of high specific surface area calcium hydroxide according to claim 1, characterized in that, A first L-shaped plate (14) is fixedly installed on one side of the digester frame (1), a first electric push rod (15) is fixedly installed on one side of the first L-shaped plate (14), a conical block (16) is fixedly installed at the output end of the first electric push rod (15), a quicklime box (25) is fixedly installed on the top of the adjustment frame (4), and a connecting groove (26) is provided between the adjustment frame (4) and the digester frame (1).

3. A multi-stage digester for the production of high specific surface area calcium hydroxide according to claim 1, characterized in that, A plurality of control frames (17) are fixedly installed on the top of the digester frame (1). A first connecting block (18) is fixedly installed on one side of the control frame (17), and a second connecting block (40) is fixedly installed on one side of the control frame (17). The first connecting block (18) is fixedly connected to the digester frame (1). A water tank (20) is fixedly installed on the top of the digester frame (1). An auxiliary agent tank (21) is fixedly installed on the top of the digester frame (1). A first through groove (19) is opened between the first connecting block (18) and the digester frame (1). A second through groove (22) is opened between the second connecting block (40) and the water tank (20) and the auxiliary agent tank (21). A first one-way valve (23) is provided in the first through groove (19), and a second one-way valve (24) is provided in the second through groove (22).

4. A multi-stage digester for the production of high specific surface area calcium hydroxide according to claim 3, characterized in that, A slide groove (27) is provided on one side of the control frame (17), and a slider (28) is slidably installed in the slide groove (27). A second L-shaped plate (29) is fixedly installed on one side of the control frame (17), and a second electric push rod (30) is fixedly installed on one side of the second L-shaped plate (29). The slider (28) is fixedly connected to the output end of the second electric push rod (30).

5. A multi-stage digester for the production of high specific surface area calcium hydroxide according to claim 1, characterized in that, The auxiliary component (3) includes a high-efficiency heat exchanger (31), a control device (32), a processing device (33), a pressure gauge device (34), a safety valve (35), a motor (36), a stirring rod (37), and a discharge pipe (38). The high-efficiency heat exchanger (31) is located at the bottom of the digester frame (1), the control device (32) is located in front of the high-efficiency heat exchanger (31), the processing device (33) is located in front of the high-efficiency heat exchanger (31), and the pressure gauge device (34) is located in front of the high-efficiency heat exchanger (31).

6. A multi-stage digester for the production of high specific surface area calcium hydroxide according to claim 5, characterized in that, The safety valve (35) is located on the top of the digester frame (1), the motor (36) is fixedly installed on the top of the digester frame (1), the stirring rod (37) is rotatably installed on the top of the inner wall of the digester frame (1), the stirring rod (37) is connected to the output end of the motor (36), a groove (39) is provided between the digester frame (1) and the high-efficiency heat exchanger (31), and the discharge pipe (38) is fixedly connected to the outer surface of the digester frame (1).