A limestone powder slurrying device

Abstract

The utility model discloses a kind of limestone powder slurry devices, is provided with agitator tank, agitator tank is installed on base, the top of agitator tank is provided with tank cover, two groups of first flat paddle are rotatably arranged in agitator tank, a group of second spiral stirring paddle is rotatably arranged between two groups of first flat paddle, the top of second spiral stirring paddle is provided with extrusion chamber, after second spiral stirring paddle rotates, part limestone slurry in agitator tank is driven to enter into extrusion chamber, and existing agglomerate in limestone slurry is extruded and decomposed.The utility model is provided with extrusion chamber on second spiral stirring paddle, when limestone slurry is brought into extrusion chamber, limestone slurry will be forced to overflow from extrusion discharge port due to stress, so as to realize the oppression of limestone slurry agglomerate, realize decomposing effect, when it is repeatedly stirred when reflowing into agitator tank, it can be fully dissolved with water, ensure the stability of limestone slurry and the efficiency of subsequent desulfurization reaction.

Description

Technical Field

[0001] This utility model relates to the field of limestone processing technology, specifically to a limestone slurry processing device. Background Technology

[0002] Limestone slurry mixing technology is a widely used chemical treatment method in industrial fields, playing a crucial role in several important stages. This technology involves mixing limestone powder with water and thoroughly mixing it to form a homogeneous slurry. Limestone slurry mixing technology has been implemented in various applications, particularly in flue gas desulfurization, where slurried limestone acts as an effective desulfurizing agent, reducing sulfur dioxide emissions from coal combustion.

[0003] Precise control of the limestone slurry process is crucial, as the concentration, particle size, and stability of the slurry are key factors affecting the final result. To achieve this, the limestone powder must first be ground to a suitable fineness to ensure a more uniform reaction when mixed with water.

[0004] However, during the stirring process, limestone powder may still clump together, which will hinder its full dissolution with water, thereby affecting the efficiency of the desulfurization reaction and reducing the stability of the slurry. Utility Model Content

[0005] This invention provides a limestone slurry device. By setting an extrusion chamber on the second spiral agitator, when limestone slurry is brought into the extrusion chamber, the limestone slurry will be forced to overflow from the extrusion outlet due to the force, thereby compressing the limestone slurry agglomerates and achieving decomposition, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A limestone slurry processing device includes a mixing tank mounted on a base. The mixing tank has a lid on top. Inside the mixing tank, two sets of first flat mixing blades are rotatably arranged. Between the two sets of first flat mixing blades, a second spiral mixing blade is rotatably arranged. The top of the second spiral mixing blade has a compression chamber. When the second spiral mixing blade rotates, it drives part of the limestone slurry in the mixing tank into the compression chamber, thereby compressing and decomposing any lumps in the limestone slurry.

[0008] Preferably, the can lid is provided with a first top turntable, the top of the first flat stirring paddle is rotatably connected to the first top turntable, the base is provided with a first bottom rotating frame, and the bottom of the first flat stirring paddle is fixedly connected to the first bottom rotating frame.

[0009] Preferably, a second top turntable is provided on the tank lid, the top of the second spiral agitator is rotatably connected to the second top turntable, a second bottom turntable is provided at the bottom of the mixing tank, and the bottom of the second spiral agitator is fixedly connected to the second bottom turntable.

[0010] Preferably, the rotation direction of the first flat plate agitator is different from that of the second spiral agitator, and the rotation speed of the first flat plate agitator is the same as that of the second spiral agitator.

[0011] Preferably, the base is equipped with a drive motor, and a main drive sector gear is sleeved on the output shaft of the drive motor. A first sub-drive sector gear and a second sub-drive sector gear are respectively meshed on the main drive sector gear. The first sub-drive sector gear is fixedly connected to the first bottom rotating frame, and the second sub-drive sector gear is fixedly connected to the second bottom turntable.

[0012] Preferably, a balancing follower sector gear meshes between the first and second sub-drive sector gears, and a fixed rod extends from the bottom wall of the mixing tank inside the base, the balancing follower sector gear being rotatably connected to the fixed rod via a bearing.

[0013] Preferably, the extrusion chamber is located in the upper half of the second spiral agitator, and the side wall of the extrusion chamber is provided with multiple extrusion outlets.

[0014] Preferably, each of the extrusion outlets is provided with a toothed assembly, which is respectively located at the top and bottom ends of the extrusion outlet.

[0015] Compared with existing technologies, the beneficial effects of this utility model are as follows:

[0016] 1. The limestone slurry device described in this utility model is equipped with a first flat stirring paddle and a second spiral stirring paddle with different rotation directions. When they rotate, the limestone slurry is subjected to two different directions of stirring inside the mixing tank. It can be impacted by two different vortexes. The impact force can quickly dissolve the limestone slurry and reduce the formation of lumps.

[0017] 2. The limestone slurry device described in this utility model has an extrusion chamber on the second spiral agitator. When the limestone slurry is brought into the extrusion chamber, it will be forced to overflow from the extrusion outlet due to the force, thereby compressing the limestone slurry agglomerates and decomposing them. When it flows back into the mixing tank for repeated stirring, it can be fully dissolved with water, thus ensuring the stability of the limestone slurry and the efficiency of the subsequent desulfurization reaction. Attached Figure Description

[0018] Figure 1 This is a partially enlarged structural diagram of the extrusion outlet of this utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the overall structure of a limestone slurry processing device according to the present invention;

[0020] Figure 3 For the present utility model Figure 2 A magnified view of the structure at point A.

[0021] In the diagram: 1. Mixing tank; 2. Base; 3. Tank lid; 4. First flat plate agitator; 5. Second spiral agitator; 6. Extrusion chamber; 7. First top turntable; 8. First bottom rotating frame; 9. Second top turntable; 10. Second bottom turntable; 11. Drive motor; 12. Main drive sector gear; 13. First sub-drive sector gear; 14. Second sub-drive sector gear; 15. Balance follower sector gear; 16. Fixed rod; 17. Bearing; 18. Extrusion outlet; 19. Tooth assembly. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1 to 3 As shown, this utility model provides a limestone slurry preparation device, which includes a mixing tank 1 to provide a mixing environment for the limestone. The mixing tank 1 is fixedly mounted on a base 2 to maintain its stability. A tank cover 3 is provided on the top of the mixing tank 1, and a first flat mixing blade 4 and a second spiral mixing blade 5 are rotatably mounted between the inside of the tank cover 3 and the bottom of the mixing tank 1. Figure 1 As shown, two sets of first flat plate agitators 4 are rotatably arranged inside the mixing tank 1, and a second spiral agitator 5 is rotatably arranged between the two sets of first flat plate agitators 4. The first flat plate agitators 4 and the second spiral agitator 5 respectively perform different agitation functions to achieve the effect of fully agitating the limestone slurry, reducing or even eliminating the formation of limestone slurry lumps, thereby improving the stability of the slurry. Its working principle is mainly realized by the extrusion chamber 6 set at the top of the second spiral agitator 5. First, after the second spiral agitator 5 rotates, it drives part of the limestone slurry in the mixing tank 1 into the extrusion chamber 6, thereby extruding and decomposing the lumps present in the limestone slurry.

[0024] Specifically, the motion principles of the first flat impeller 4 and the second spiral impeller 5 are as follows: Figure 1 or Figure 2 As shown, firstly, a first top turntable 7 is provided on the inner top wall of the can lid 3. The tops of the two sets of first flat stirring paddles 4 are rotatably connected to the first top turntable 7. The base 2 is provided with a first bottom rotating frame 8, and the bottoms of the two sets of first flat stirring paddles 4 are fixedly connected to the first bottom rotating frame 8. When the first bottom rotating frame 8 is driven to rotate, it will drive the two sets of first flat stirring paddles 4 to rotate synchronously, thereby achieving the stirring effect of the two sets of first flat stirring paddles 4.

[0025] A second top turntable 9 is provided on the lid 3, and the top of the second spiral stirring paddle 5 is rotatably connected to the second top turntable 9. A second bottom turntable 10 is provided at the bottom of the mixing tank 1, and the bottom of the second spiral stirring paddle 5 is fixedly connected to the second bottom turntable 10. When the second bottom turntable 10 is driven to rotate, it will drive the second spiral stirring paddle 5 to rotate synchronously, thereby achieving the stirring effect of the second spiral stirring paddle 5.

[0026] It should be noted that the rotation direction of the first flat plate agitator 4 is different from that of the second spiral agitator 5, but the two sets of first flat plate agitators 4 rotate synchronously. This allows the limestone slurry to be impacted by two vortices of different directions when it is stirred inside the mixing tank 1. The impact force can quickly dissolve the limestone slurry and reduce the formation of lumps. The rotation speed of the first flat plate agitator 4 is the same as that of the second spiral agitator 5. The second spiral agitator 5 can also perform its own stirring effect during rotation. Therefore, the extrusion chamber 6 is only set in the upper half of the second spiral agitator 5, and its lower half is used for stirring. As the second spiral agitator 5 continuously lifts and carries the limestone slurry into the extrusion chamber 6 during rotation, if there are lumps in the limestone slurry, they will be squeezed and broken down after passing through the extrusion chamber 6, thereby breaking up the lumps and allowing them to re-enter the stirring process to achieve a thorough dissolution effect.

[0027] like Figure 2 or Figure 3As shown, the first flat impeller 4 and the second spiral impeller 5 are driven by a drive motor 11, and their different rotation directions are achieved through a sector gear assembly. First, a drive motor 11 is installed inside the base 2. A main drive sector gear 12 is mounted on the output shaft of the drive motor 11 to provide the main power. A first sub-drive sector gear 13 and a second sub-drive sector gear 14 are meshed on the main drive sector gear 12. When the main drive sector gear 12 rotates, it drives the first sub-drive sector gear 13 and the second sub-drive sector gear 14 to rotate simultaneously. Due to the characteristics of sector gears, the first sub-drive sector gear 13 and the second sub-drive sector gear 14 will rotate in opposite directions; that is, when one rotates forward, the other rotates in reverse. Simultaneously, to enhance the overall stability of the sector gear assembly, a balancing follower sector gear 15 is also meshed between the other ends of the first sub-drive sector gear 13 and the second sub-drive sector gear 14 to ensure the smooth operation of the first sub-drive sector gear 13 and the second sub-drive sector gear 14. Furthermore, a fixed rod 16 is provided on the bottom wall of the mixing tank 1 located inside the base 2. The balancing follower sector gear 15 is rotatably connected to the fixed rod 16 through the bearing 17 to ensure the operational stability of the entire sector gear assembly system.

[0028] The connection method of the first drive sector gear 13 and the second drive sector gear 14 is as follows: Figure 3 As shown, the first drive sector gear 13 is fixedly connected to the first bottom rotating frame 8, and the second drive sector gear 14 is fixedly connected to the second bottom turntable 10. Furthermore, the drive motor 11 is fixedly installed at the bottom of the mixing tank 1, so the drive motor 11 is not affected when the first bottom rotating frame 8 rotates.

[0029] The compression principle of compression chamber 6 can be described as follows: Figure 1 As shown, multiple extrusion outlets 18 are provided on the side wall of the extrusion chamber 6. When the second spiral agitator 5 brings the limestone slurry into the extrusion chamber 6, the internal pressure continuously increases. Therefore, the limestone slurry in the extrusion chamber 6 is forced to overflow from the extrusion outlets 18, thereby compressing the limestone slurry agglomerates and achieving decomposition. To ensure the decomposition effect of the limestone slurry agglomerates, a toothed component 19 is provided in each extrusion outlet 18. This toothed component 19 scrapes against the small limestone slurry agglomerates, further improving the decomposition effect. Furthermore, the toothed components 19 are respectively located at the top and bottom ends of the extrusion outlets 18, which improves the uniformity of decomposition. It should be noted that the toothed component 19 can be a needle-like structure made of metal or hard plastic material.

[0030] In summary, the limestone slurry device provided by this utility model, by setting a first flat stirring paddle 4 and a second spiral stirring paddle 5 with different rotation directions, allows the limestone slurry to be stirred in two different directions inside the mixing tank 1 when it rotates. It can be impacted by two vortexes in different directions, and the impact force can quickly dissolve the limestone slurry and reduce the formation of lumps. Furthermore, by setting an extrusion chamber 6 on the second spiral stirring paddle 5, when the limestone slurry is brought into the extrusion chamber 6, the limestone slurry will be forced to overflow from the extrusion outlet 18 due to the force, thereby compressing the limestone slurry lumps and achieving decomposition. When it flows back into the mixing tank 1 for repeated stirring, it can be fully dissolved with water, thereby ensuring the stability of the limestone slurry and the efficiency of the subsequent desulfurization reaction.

[0031] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A limestone slurry preparation device, characterized in that, A mixing tank (1) is provided, which is mounted on a base (2). A tank cover (3) is provided on the top of the mixing tank (1). Two sets of first flat mixing blades (4) are rotatably arranged inside the mixing tank (1). A set of second spiral mixing blades (5) is rotatably arranged between the two sets of first flat mixing blades (4). A squeezing chamber (6) is provided on the top of the second spiral mixing blades (5). After the second spiral mixing blades (5) rotate, they drive part of the limestone slurry in the mixing tank (1) into the squeezing chamber (6) to squeeze and decompose the lumps in the limestone slurry.

2. The limestone slurry preparation device according to claim 1, characterized in that, The can lid (3) is provided with a first top turntable (7), the top of the first flat stirring paddle (4) is rotatably connected to the first top turntable (7), the base (2) is provided with a first bottom rotating frame (8), and the bottom of the first flat stirring paddle (4) is fixedly connected to the first bottom rotating frame (8).

3. The limestone slurry preparation device according to claim 2, characterized in that, The tank lid (3) is provided with a second top turntable (9), the top of the second spiral stirring paddle (5) is rotatably connected to the second top turntable (9), the bottom of the stirring tank (1) is provided with a second bottom turntable (10), and the bottom of the second spiral stirring paddle (5) is fixedly connected to the second bottom turntable (10).

4. The limestone slurry preparation device according to claim 3, characterized in that, The rotation direction of the first flat plate stirring paddle (4) is different from that of the second spiral stirring paddle (5), and the rotation speed of the first flat plate stirring paddle (4) is the same as that of the second spiral stirring paddle (5).

5. A limestone slurry preparation device according to claim 4, characterized in that, The base (2) is equipped with a drive motor (11). A main drive sector gear (12) is sleeved on the output shaft of the drive motor (11). A first sub-drive sector gear (13) and a second sub-drive sector gear (14) are respectively meshed on the main drive sector gear (12). The first sub-drive sector gear (13) is fixedly connected to the first bottom rotating frame (8), and the second sub-drive sector gear (14) is fixedly connected to the second bottom turntable (10).

6. The limestone slurry preparation device according to claim 5, characterized in that, A balancing follower sector gear (15) meshes between the first drive sector gear (13) and the second drive sector gear (14). A fixed rod (16) extends from the bottom wall of the mixing tank (1) inside the base (2). The balancing follower sector gear (15) is rotatably connected to the fixed rod (16) via a bearing (17).

7. The limestone slurry preparation device according to claim 1, characterized in that, The extrusion chamber (6) is located in the upper part of the second spiral agitator (5), and a plurality of extrusion outlets (18) are provided on the side wall of the extrusion chamber (6).

8. A limestone slurry preparation device according to claim 7, characterized in that, Each of the extrusion outlets (18) is provided with a toothed assembly (19), which is respectively located at the top and bottom ends of the extrusion outlet (18).

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