A wet digester for calcium hydroxide with a multi-stage stirring structure

Abstract

This application discloses a wet digester for calcium hydroxide with a multi-stage stirring structure, relating to the technical field of calcium hydroxide stirring. It includes a primary stirring mechanism, with the right end of the primary stirring mechanism connected to a digester tank. Lifting mechanisms are installed on the upper outer walls of both sides of the digester tank. A cover plate is installed on the upper surface of the lifting mechanism, and a secondary stirring mechanism is installed in the middle of the lower surface of the cover plate. An integrated ultrasonic device is installed on the outer wall of the digester tank, and several ultrasonic vibrating rods are installed on the inner wall of the digester tank. The output end of the integrated ultrasonic device is electrically connected to the ultrasonic vibrating rods. Through the combination of these structures, multi-stage stirring and mixing of calcium hydroxide raw materials can be achieved, improving the stirring and mixing effect.

Description

Technical Field

[0001] This utility model belongs to the field of calcium hydroxide stirring technology, specifically a wet digester for calcium hydroxide with a multi-stage stirring structure. Background Technology

[0002] The wet slaking machine for calcium hydroxide is a core piece of equipment in lime processing, mainly used to convert quicklime into calcium hydroxide through a hydration reaction. Compared to the dry method, the wet slaking machine produces a calcium hydroxide slurry with a larger specific surface area and more uniform reaction.

[0003] Most wet digesters for calcium hydroxide currently use a single-stage stirring structure. The single-stage structure relies on the shear force of the blades to break up lumps. However, hard lumps formed by overburned lime or impurities require higher mechanical strength. Existing wear-resistant blades are difficult to completely crush them, resulting in a high proportion of residual lumps, weak lump handling capacity, insufficient mixing uniformity, and affecting the overall stirring and mixing effect.

[0004] Therefore, we propose a wet digester for calcium hydroxide with a multi-stage stirring structure. Utility Model Content

[0005] The purpose of this utility model is to provide a wet digester for calcium hydroxide with a multi-stage stirring structure in order to improve the stirring and mixing effect by performing multi-stage stirring on calcium hydroxide raw materials.

[0006] The technical solution adopted in this utility model is as follows: A wet digester for calcium hydroxide with a multi-stage stirring structure includes a primary stirring mechanism. The right end of the primary stirring mechanism is connected to a digester body. Lifting mechanisms are installed on the upper outer walls of both sides of the digester body. A cover plate is installed on the upper surface of the lifting mechanism. A secondary stirring mechanism is installed in the middle of the lower surface of the cover plate. An integrated ultrasonic device is installed on the outer wall of the digester body. Several ultrasonic vibrating rods are installed on the inner wall of the digester body. The output end of the integrated ultrasonic device is electrically connected to the ultrasonic vibrating rods. The primary stirring mechanism includes a cylinder, the inner cavity at the right end of the cylinder is connected to the inner cavity at the upper end of the digester barrel, a motor is fixedly connected to the inner wall at the left end of the cylinder, a rotating rod is fixedly connected to the output end of the motor, and an auger blade is fixedly connected to the outer surface of the rotating rod. The secondary stirring mechanism includes a second motor, which is fixedly connected to the middle of the lower surface of the cover plate. A second rotating rod is fixedly connected to the output end of the second motor, and stirring blades are fixedly connected to the outer surface of the second rotating rod.

[0007] Furthermore, the lifting mechanism includes a load-bearing plate, which is fixedly connected to the upper outer wall of the digester barrel. A hydraulic cylinder is fixedly connected to the upper surface of the load-bearing plate, and a lifting column is installed on the upper surface of the hydraulic cylinder. The end of the lifting column away from the hydraulic cylinder is fixedly connected to the lower surface of the cover plate.

[0008] Furthermore, the lower end of the digester barrel is connected to a discharge pipe, and a valve is installed on the lower outer surface of the discharge pipe. The inner bottom surface of the digester barrel slopes from all sides toward the upper opening of the discharge pipe.

[0009] Furthermore, bottom columns are fixedly connected to both ends of the lower surface of the digester barrel.

[0010] Furthermore, the lower surface of the cylinder is fixedly connected to a feed pipe, the inner cavity at the left end of the cylinder is fixedly connected to a feed pipe, and the inner cavity at the upper end of the feed pipe is connected to a horn-shaped feed inlet.

[0011] Furthermore, the ultrasonic vibrating rod is disposed in the gap between two adjacent stirring blades.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: In this invention, after the calcium hydroxide raw material to be stirred is placed inside the cylinder, motor one can be started to drive the auger blades to rotate intensively, thereby conveying and mixing the raw material into the digester tank. After the calcium hydroxide raw material enters the digester tank, motor two can be started to drive the stirring blades to rotate, thereby mixing the raw material again to improve the mixing effect. At the same time, the integrated ultrasonic device can be started, which has a built-in ultrasonic generator to generate a high-frequency electrical signal, driving the ultrasonic vibrator to transfer energy to the calcium hydroxide mixture, generating cavitation bubbles in the liquid. The pressure released when the bubbles burst can effectively break up the calcium hydroxide agglomerates, thereby further improving the mixing effect of the calcium hydroxide raw material. Through the combination of the above structures, the calcium hydroxide raw material can be stirred and mixed in multiple stages, improving the mixing effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the digester barrel in this utility model; Figure 3 This is a cross-sectional view of the primary stirring mechanism in this utility model.

[0014] The diagram is labeled as follows: 1-Primary mixing mechanism, 2-Digester tank, 3-Lifting mechanism, 4-Cover plate, 5-Integrated ultrasonic equipment, 6-Secondary mixing mechanism, 11-Cylinder, 12-Motor I, 13-Rotating rod I, 14-Auger blade, 15-Feed pipe, 16-Bell inlet, 21-Bottom column, 22-Discharge pipe, 23-Valve, 31-Bearing plate, 32-Hydraulic cylinder, 33-Lifting column, 51-Ultrasonic vibrator, 61-Motor II, 62-Rotating rod II, 63-Mixing blade. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example

[0016] Reference Figures 1-3 A wet digester for calcium hydroxide with a multi-stage stirring structure includes a primary stirring mechanism 1. The right end of the primary stirring mechanism 1 is connected to a digester body 2. Bottom columns 21 are fixedly connected to both ends of the lower surface of the digester body 2. Lifting mechanisms 3 are installed on the upper outer walls of both sides of the digester body 2. A cover plate 4 is installed on the upper surface of the lifting mechanism 3, and a secondary stirring mechanism 6 is installed in the middle of the lower surface of the cover plate 4. The primary stirring mechanism 1 includes a cylinder 11. The inner cavity at the right end of the cylinder 11 communicates with the inner cavity at the upper end of the digester body 2. A motor 12 is fixedly connected to the inner wall at the left end of the cylinder 11, and the output end of the motor 12 is fixedly connected to... There is a rotating rod 13, and an auger blade 14 is fixedly connected to the outer surface of the rotating rod 13; a 17 is fixedly connected to the lower surface of the cylinder 11, and a feed pipe 15 is fixedly connected to the inner cavity at the left end of the cylinder 11. The inner cavity at the upper end of the feed pipe 15 is connected to a horn-shaped feed inlet 16. Specifically, when using this device, first connect an external power source, then place the calcium hydroxide raw material to be stirred into the cylinder 11 through the feed pipe 15 from the horn-shaped feed inlet 16. Then, start the motor 12 to make the rotating rod 13 drive the auger blade 14 to rotate tightly, thereby conveying these raw materials into the digester tank 2 while mixing and stirring them.

[0017] Reference Figures 1-3The secondary stirring mechanism 6 includes a second motor 61, which is fixedly connected to the middle of the lower surface of the cover plate 4. The output end of the second motor 61 is fixedly connected to a second rotating rod 62, and the outer surface of the second rotating rod 62 is fixedly connected to a stirring blade 63. Specifically, when the calcium hydroxide raw material enters the digester tank 2, the second motor 61 can be started to make the second rotating rod 62 drive the stirring blade 63 to rotate, thereby mixing and stirring these raw materials again to improve the mixing effect.

[0018] Reference Figures 1-3 An integrated ultrasonic device 5 is installed on the outer wall of the digester tank 2, and several ultrasonic vibrating rods 51 are installed on the inner wall of the digester tank 2. The output end of the integrated ultrasonic device 5 is electrically connected to the ultrasonic vibrating rods 51. The ultrasonic vibrating rods 51 are positioned in the gap between two adjacent stirring blades 63. Specifically, activating the integrated ultrasonic device 5 enables its built-in ultrasonic generator to generate a high-frequency electrical signal, which drives the ultrasonic vibrating rods 51 to transfer energy to the calcium hydroxide mixture, generating cavitation bubbles in the liquid. The pressure released when these bubbles burst can effectively break up calcium hydroxide agglomerates, thereby further improving the mixing effect of the calcium hydroxide raw material. Through the combination of the above structures, the calcium hydroxide raw material can be mixed in multiple stages, improving the mixing effect.

[0019] Reference Figures 1-3 The lifting mechanism 3 includes a load-bearing plate 31, which is fixedly connected to the upper outer wall of the digester tank 2. A hydraulic cylinder 32 is fixedly connected to the upper surface of the load-bearing plate 31, and a lifting column 33 is installed on the upper surface of the hydraulic cylinder 32. The end of the lifting column 33 away from the hydraulic cylinder 32 is fixedly connected to the lower surface of the cover plate 4. Activating the hydraulic cylinder 32 can cause the lifting column 33 to move the cover plate 4 upward, so as to open the upper opening of the cover plate 4, so as to clean the inside of the digester tank 2 or add raw materials. The lower internal cavity of the digester tank 2 is connected to a discharge pipe 22. A valve 23 is installed on the lower outer surface of the discharge pipe 22. The inner bottom surface of the digester tank 2 slopes from all sides towards the upper opening of the discharge pipe 22. Specifically, opening the valve 23 can discharge the stirred and mixed calcium hydroxide raw material from the discharge pipe 22.

[0020] The implementation principle of the calcium hydroxide wet digester with a multi-stage stirring structure in this application is as follows: When using this device, first connect an external power source. Then, place the calcium hydroxide raw material to be stirred into the cylinder 11 through the feed pipe 15 from the horn inlet 16. Then, start the motor 12 to make the rotating rod 13 drive the auger blades 14 to rotate tightly, thereby conveying these raw materials into the digester tank 2 while mixing and stirring them.

[0021] After the calcium hydroxide raw material enters the digester tank 2, the motor 61 can be started to drive the rotating rod 62 to rotate the stirring blade 63, thereby mixing the raw materials again to improve the mixing effect. At the same time, the integrated ultrasonic device 5 can be started to generate a high-frequency electrical signal, which drives the ultrasonic vibrating rod 51 to transfer energy to the calcium hydroxide mixture, generating cavitation bubbles in the liquid. The pressure released when the bubbles burst can effectively break up the calcium hydroxide agglomerates, thereby further improving the mixing effect of the calcium hydroxide raw material. Through the combination of the above structures, the calcium hydroxide raw material can be mixed in multiple stages to improve the mixing effect.

[0022] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A wet digester for calcium hydroxide with a multi-stage stirring structure, comprising a primary stirring mechanism (1), characterized in that... The right end of the primary stirring mechanism (1) is connected to the digester tank (2). Lifting mechanisms (3) are installed on the upper outer walls of both sides of the digester tank (2). A cover plate (4) is installed on the upper surface of the lifting mechanism (3). A secondary stirring mechanism (6) is installed in the middle of the lower surface of the cover plate (4). An integrated ultrasonic device (5) is installed on the outer wall of the digester tank (2). Several ultrasonic vibrating rods (51) are installed on the inner wall of the digester tank (2). The output end of the ultrasonic device (5) is electrically connected to the ultrasonic vibrating rod (51); the primary stirring mechanism (1) includes a cylinder (11), the inner cavity of the right end of the cylinder (11) is connected to the inner cavity of the upper end of the digester barrel (2), a motor (12) is fixedly connected to the inner wall of the left end of the cylinder (11), a rotating rod (13) is fixedly connected to the output end of the motor (12), and an auger blade (14) is fixedly connected to the outer surface of the rotating rod (13); The secondary stirring mechanism (6) includes a second motor (61), which is fixedly connected to the middle of the lower surface of the cover plate (4). The output end of the second motor (61) is fixedly connected to a second rotating rod (62), and the outer surface of the second rotating rod (62) is fixedly connected to a stirring blade (63).

2. The wet digester for calcium hydroxide with a multi-stage stirring structure as described in claim 1, characterized in that... The lifting mechanism (3) includes a load-bearing plate (31), which is fixedly connected to the upper outer wall of the digester barrel (2). A hydraulic cylinder (32) is fixedly connected to the upper surface of the load-bearing plate (31), and a lifting column (33) is installed on the upper surface of the hydraulic cylinder (32). One end of the lifting column (33) away from the hydraulic cylinder (32) is fixedly connected to the lower surface of the cover plate (4).

3. A wet digester for calcium hydroxide with a multi-stage stirring structure as described in claim 1, characterized in that... The lower end of the digester barrel (2) is connected to the discharge pipe (22), and a valve (23) is installed on the lower outer surface of the discharge pipe (22). The inner bottom surface of the digester barrel (2) is inclined from all sides toward the upper opening of the discharge pipe (22).

4. A wet digester for calcium hydroxide with a multi-stage stirring structure as described in claim 1, characterized in that... The digester barrel (2) has bottom columns (21) fixedly connected to both ends of its lower surface.

5. A wet digester for calcium hydroxide with a multi-stage stirring structure as described in claim 1, characterized in that... The ultrasonic vibrating rod (51) is disposed in the gap between two adjacent stirring blades (63).

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