Power plant desulfurization slurry preparation and storage device

Abstract

The invention relates to the technical field of desulfurization slurry preparation, in particular to a power plant desulfurization slurry preparation and storage device. The device comprises a tank body, wherein a preparation space, a partition plate and a storage space are sequentially arranged in the tank body from top to bottom; the preparation space is communicated with a raw material feeding pipe, the raw material feeding pipe is used for inputting pulping raw materials, and the pulping raw materials input into the preparation space can be stirred by the stirring assembly to form desulfurized slurry; the partition plate is provided with a valve plate, the valve plate can be closed or opened by the driving assembly, when the valve plate is closed, the preparation space and the storage space do not communicate with each other, and when the valve plate is opened, the preparation space and the storage space communicate with each other, so that the desulfurization slurry can flow into the storage space; the storage space is communicated with a slurry output pipe; the slurry output pipe is used for outputting desulfurization slurry. The device can realize continuous preparation of desulfurization slurry, so that the influence of an existing desulfurization slurry preparation mode on continuous operation of a desulfurization tower can be improved, and the situation that power plant emission does not reach the standard due to desulfurization efficiency fluctuation is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of desulfurization slurry preparation, and in particular to a desulfurization slurry preparation and storage device for a power plant. Background Art

[0002] In modern industrial production, especially in thermal power plants, harmful gas emissions such as sulfur dioxide generated by coal combustion have become one of the main sources of environmental pollution. In order to reduce the damage of these pollutants to the atmosphere, power plants generally adopt desulfurization technology, among which wet desulfurization is widely used due to its high desulfurization efficiency. The core of wet desulfurization lies in the preparation and supply of desulfurization slurry. The existing desulfurization slurry preparation system has some obvious shortcomings in actual operation, which limit the desulfurization efficiency and the overall performance of the system.

[0003] The existing method for preparing desulfurization slurry usually prepares a certain amount of slurry at one time and then supplies it to the desulfurization tower for use. A major problem with this method is that the supply of slurry is intermittent rather than continuous. Specifically, the desulfurization slurry is usually a mixture of limestone powder and water, and this slurry needs to be immediately transported to the desulfurization tower for use after preparation. However, since the amount of slurry prepared each time is limited, the preparation process needs to be restarted when the slurry is exhausted, which leads to an interruption in the slurry supply. Such an intermittent supply method not only affects the continuous operation of the desulfurization tower, but may also cause fluctuations in the desulfurization efficiency, thereby affecting the emission compliance of the entire power plant. Summary of the invention

[0004] The embodiments of the present application at least provide a desulfurization slurry preparation and storage device for a power plant, which can realize the continuous preparation of desulfurization slurry, thereby improving the impact of the existing desulfurization slurry preparation method on the continuous operation of the desulfurization tower and avoiding fluctuations in desulfurization efficiency that lead to substandard power plant emissions.

[0005] An embodiment of the present application provides a desulfurization slurry preparation and storage device for a power plant, the device comprising a tank body, the interior of the tank body comprising a preparation space, a partition and a storage space arranged in sequence from top to bottom; the preparation space is connected to a raw material feed pipe, the raw material feed pipe is used to input pulping raw materials, the pulping raw materials input to the preparation space can be stirred by a stirring component to form a desulfurization slurry; the partition is provided with a valve plate, the valve plate can be closed or opened by a driving component, when closed, the preparation space and the storage space are not connected to each other, when opened, the preparation space and the storage space are connected to each other, so that the desulfurization slurry can flow into the storage space; the storage space is connected to a slurry output pipe, the slurry output pipe is used to output the desulfurization slurry.

[0006] In an optional embodiment, the valve plate is rotatably disposed in the through hole of the partition, and the valve plate rotates relative to the partition to achieve opening or closing.

[0007] In an optional embodiment, the valve plate is provided with a limiting portion, and the limiting portion cooperates with the partition plate to limit the rotation angle of the valve plate.

[0008] In an optional embodiment, the driving assembly includes a material storage rod and a material storage motor; the material storage rod is inserted through the tank body and connected to the valve plate; the material storage motor is arranged in the tank body and connected to the material storage rod, and the material storage motor is used to drive the material storage rod to rotate circumferentially, so that the material storage rod drives the valve plate to rotate relative to the partition.

[0009] In an optional embodiment, the drive assembly further includes a first bevel gear and a second bevel gear; the first bevel gear is arranged on the storage rod; the second bevel gear is arranged on the driving shaft of the storage motor, and the second bevel gear is meshed with the first bevel gear.

[0010] In an optional embodiment, the stirring component includes a first stirring component and a stirring motor; the first stirring component includes a first stirring shaft and a first stirring part; the first stirring shaft passes through the tank body; the first stirring part is arranged on the first stirring shaft and is located in the preparation space; the stirring motor is arranged on the tank body and connected to the first stirring shaft, and the stirring motor is used to drive the first stirring shaft to rotate circumferentially, so that the first stirring shaft drives the first stirring part to stir.

[0011] In an optional embodiment, the stirring component also includes a second stirring component and a linkage component; the second stirring component includes a second stirring shaft and a second stirring part; the second stirring shaft is arranged in the storage space; the second stirring part is arranged on the second stirring shaft and is located in the storage space; the linkage component is connected between the second stirring shaft and the first stirring shaft, and the linkage component is used to drive the second stirring shaft to rotate circumferentially when the first stirring shaft rotates circumferentially, so that the second stirring shaft drives the second stirring part to stir.

[0012] In an optional embodiment, the linkage assembly includes a first transmission shaft, a second transmission shaft, a first gear pair, a second gear pair and a third gear pair; the first transmission shaft is rotatably disposed on the partition and is perpendicular to the first agitation shaft; the second transmission shaft is rotatably disposed on the partition and is parallel to the first agitation shaft; the first gear pair is connected between the first transmission shaft and the first agitation shaft, and the first gear pair is used to transmit torque to the first transmission shaft when the first agitation shaft rotates circumferentially; the second gear pair is connected between the first transmission shaft and the second transmission shaft, and the second gear pair is used to transmit torque to the second transmission shaft when the first transmission shaft rotates circumferentially; the third gear pair is connected between the second transmission shaft and the second agitation shaft, and the third gear pair is used to transmit torque to the second agitation shaft when the second transmission shaft rotates circumferentially.

[0013] In an optional implementation, the speed ratios of the two gears of the third gear pair are different.

[0014] In an optional embodiment, the linkage assembly further includes a box body, the box body is fixed to the partition, and the first transmission shaft, the second transmission shaft, the first gear pair, the second gear pair and the third gear pair are all arranged in the box body.

[0015] The above technical solution of the present application has the following beneficial technical effects:

[0016] The power plant desulfurization slurry preparation and storage device of the embodiment of the present application is capable of storing the desulfurization slurry prepared in the preparation space in the storage space and then outputting it from the storage space to the desulfurization tower. This allows the preparation space to continuously prepare the desulfurization slurry, thereby allowing the device itself to continuously supply the desulfurization tower with desulfurization slurry. Compared with the intermittent preparation of desulfurization slurry in the prior art, this can improve the impact of the existing desulfurization slurry preparation method on the continuous operation of the desulfurization tower and avoid substandard emissions from the power plant due to fluctuations in the desulfurization efficiency.

[0017] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. The drawings herein are incorporated into the specification and constitute a part of the specification. These drawings illustrate embodiments consistent with the present application and are used together with the specification to illustrate the technical solutions of the present application. It should be understood that the following drawings only illustrate certain embodiments of the present application and should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can also be obtained based on these drawings without creative work.

[0019] Figure 1 A schematic diagram of the structure of a desulfurization slurry preparation and storage device for a power plant provided in an embodiment of the present application is shown;

[0020] Figure 2 Shows Figure 1 Schematic diagram of the internal structure;

[0021] Figure 3 Shows Figure 2 A partial enlarged view of middle A;

[0022] Figure 4 Shows Figure 2 A partial enlarged view of B in the middle;

[0023] Reference numerals:

[0024] 100, tank body; 110, preparation space; 120, partition; 121, valve plate; 122, limit part; 130, storage space; 210, first raw material feed pipe; 220, second raw material feed pipe; 300, slurry output pipe; 400, drive assembly; 410, storage rod; 420, storage motor; 430, first bevel gear; 440, second bevel gear; 500, stirring assembly; 510, first stirring shaft; 520, first stirring part; 530, stirring motor; 540, second stirring shaft; 550, second stirring part; 560, linkage assembly; 561, first transmission shaft; 562, second transmission shaft; 563, third bevel gear; 564, fourth bevel gear; 565, fifth bevel gear; 566, sixth bevel gear; 567, first transmission gear; 568, second transmission gear; 570, box body. DETAILED DESCRIPTION

[0025] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0026] The embodiments of the present application will be described in detail below, and 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 only used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0027] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0029] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] refer to Figures 1 to 4 , shows a desulfurization slurry preparation and storage device for a power plant, which can realize the continuous preparation of desulfurization slurry, thereby improving the impact of the existing desulfurization slurry preparation method on the continuous operation of the desulfurization tower, and avoiding fluctuations in desulfurization efficiency that lead to substandard emissions from power plants.

[0031] In some embodiments, a desulfurization slurry preparation and storage device for a power plant includes a tank body 100, a raw material feed pipe disposed at the top of the tank body 100, and a slurry output pipe 300 located at the bottom of the tank body 100. The raw material feed pipe includes a first raw material feed pipe 210 and a second raw material feed pipe 220, and the first raw material feed pipe 210 and the second raw material feed pipe 220 are used for limestone and water (pulping raw materials) respectively. The interior of the tank body 100 includes a preparation space 110, a partition 120, and a storage space 130 arranged in sequence from top to bottom. That is, the internal space of the tank body 100 is divided into a preparation space 110 and a storage space 130 by the partition 120. The preparation space 110 is connected to the raw material feed pipe, and the raw material feed pipe is used to input pulping raw materials into the preparation space 110, and the pulping raw materials input into the preparation space 110 can be stirred by the stirring assembly 500 to form a desulfurization slurry. Specifically, the partition 120 has a through hole and a valve plate 121 disposed in the through hole, and the valve plate 121 can be closed or opened by the drive assembly 400. When the valve plate 121 is closed, the valve plate 121 closes the through hole, so that the preparation space 110 and the storage space 130 are not connected to each other. When the valve plate 121 is opened, the valve plate 121 opens the through hole, so that the preparation space 110 and the storage space 130 are connected to each other. That is, when the desulfurization slurry needs to be prepared, the valve plate 121 can be closed by the drive assembly 400, and when the desulfurization slurry is prepared, the valve plate 121 can be opened by the drive assembly 400, so that the prepared desulfurization slurry flows into and is stored in the storage space 130. The storage space 130 is connected to the slurry output pipe 300, and the slurry output pipe 300 is used to output the desulfurization slurry. During specific use, the desulfurization slurry prepared in the preparation space 110 can be stored in the storage space 130, and then output from the storage space 130 to the desulfurization tower, so that the preparation space 110 can continuously prepare the desulfurization slurry, so that the device itself can continuously supply the desulfurization tower with desulfurization slurry. Compared with the intermittent preparation of desulfurization slurry in the prior art, this can improve the impact of the existing desulfurization slurry preparation method on the continuous operation of the desulfurization tower, and avoid substandard emissions from power plants due to fluctuations in desulfurization efficiency.

[0032] In some embodiments, the valve plate 121 is rotatably disposed in the through hole of the partition 120, and the valve plate 121 rotates relative to the partition 120 to achieve opening or closing. For example, when the valve plate 121 is located in the through hole and is located in the same plane as the partition 120, the valve plate 121 is in a closed state, and when the valve plate 121 rotates 90° clockwise or counterclockwise relative to the partition 120, the valve plate 121 is in an open state. However, the embodiments of the present application do not make any limitation to this. In other embodiments, the valve plate 121 can also move relative to the partition 120 to achieve opening or closing.

[0033] In some embodiments, the valve plate 121 is provided with a limiting portion 122, and the limiting portion 122 is limited and matched with the partition 120 to limit the rotation angle of the valve plate 121. For example, the limiting portion 122 includes a first limiting half ring and a second limiting half ring that are arranged opposite to each other, the first limiting half ring is arranged at the edge of the first side of the valve plate 121, and the second limiting half ring is arranged at the edge of the second side of the valve plate 121. When the valve plate 121 rotates to the closing angle, the first limiting half ring and the second limiting half ring are respectively limited and matched with the two sides of the partition 120, so that the valve plate 121 will not continue to rotate in the current direction. In addition, when the valve plate 121 is in a closed state, the first limiting half ring and the second limiting half ring are respectively limited with the two sides of the partition 120, so that the valve plate 121 can only be opened by rotating in a single direction (clockwise or counterclockwise). However, the embodiments of the present application do not make any limitation to this.

[0034] In some embodiments, the driving assembly 400 includes a material storage rod 410 and a material storage motor 420. The material storage rod 410 is radially arranged in the tank body 100 and connected to the valve plate 121. The material storage motor 420 is arranged in the tank body 100 and connected to the material storage rod 410, and the material storage motor 420 is used to drive the material storage rod 410 to rotate circumferentially, so that the material storage rod 410 drives the valve plate 121 to rotate relative to the partition 120. Specifically, starting the material storage motor 420 can drive the material storage rod 410 to rotate circumferentially, and when the material storage rod 410 rotates circumferentially, it can drive the valve plate 121 to rotate relative to the partition 120 to realize the opening or closing of the partition 120. However, the embodiments of the present application do not make any limitation to this.

[0035] In some embodiments, the drive assembly 400 further includes a first bevel gear 430 and a second bevel gear 440. The first bevel gear 430 is disposed on the storage rod 410. The second bevel gear 440 is disposed on the drive shaft of the storage motor 420, and the second bevel gear 440 is meshed with the first bevel gear 430. In this arrangement, the storage rod 410 and the drive shaft of the motor can form a 90° angle, thereby changing the position of the storage motor 420, so that the storage motor 420 can be directly mounted on the outer wall of the tank body 100. However, the embodiments of the present application do not make any limitation to this.

[0036] In some embodiments, the stirring assembly 500 includes a first stirring assembly 500 and a stirring motor 530. The first stirring assembly 500 includes a first stirring shaft 510 and a first stirring part 520. The first stirring shaft 510 is arranged along the axial direction of the tank body 100, and the lower end of the first stirring shaft 510 penetrates into the tank body 100. The first stirring part 520 is arranged on the first stirring shaft 510 and is located in the preparation space 110. The first stirring part 520 can be a frame composed of a transverse rod and a longitudinal rod. The stirring motor 530 is arranged on the top of the tank body 100 and is connected to an end of the first stirring shaft 510 extending out of the tank body 100. The stirring motor 530 is used to drive the first stirring shaft 510 to rotate circumferentially, so that the first stirring shaft 510 drives the first stirring part 520 to stir. Specifically, starting the stirring motor 530 can drive the first stirring shaft 510 to rotate circumferentially, and the first stirring shaft 510 can drive the first stirring part 520 to rotate when the first stirring shaft 510 rotates circumferentially, and the first stirring part 520 can achieve stirring of the pulping raw material when it rotates. However, the embodiments of the present application do not impose any limitation on this.

[0037] In some embodiments, the stirring assembly 500 further includes a second stirring assembly 500 and a linkage assembly 560. The second stirring assembly 500 includes a second stirring shaft 540 and a second stirring portion 550. The second stirring shaft 540 is arranged along the axial direction of the tube body, and the second stirring shaft 540 is located in the storage space 130. The second stirring portion 550 is arranged on the second stirring shaft 540 and is located in the storage space 130, and the second stirring portion 550 can be a frame composed of a transverse rod and a longitudinal rod. The linkage assembly 560 is connected between the second stirring shaft 540 and the first stirring shaft 510, and the linkage assembly 560 is used to drive the second stirring shaft 540 to rotate circumferentially when the first stirring shaft 510 rotates circumferentially, so that the second stirring shaft 540 drives the second stirring portion 550 to stir. Specifically, during the preparation of the desulfurized slurry, the first stirring shaft 510 can transmit torque to the second stirring shaft 540 through the linkage assembly 560, so that the second stirring part 550 can stir the desulfurized slurry in the storage space 130, thereby preventing the desulfurized slurry from settling in the storage space 130. However, the present application does not limit this in any way.

[0038] In some embodiments, the linkage assembly 560 includes a first transmission shaft 561, a second transmission shaft 562, a first gear pair, a second gear pair, and a third gear pair. The first transmission shaft 561 is perpendicular to the first stirring shaft 510, and the first transmission shaft 561 is rotatably arranged on the partition 120. The second transmission shaft 562 is parallel to the first stirring shaft 510 (or the second stirring shaft 540), and the second transmission shaft 562 is rotatably arranged on the partition 120. The first gear pair is connected between the first transmission shaft 561 and the first stirring shaft 510, and the first gear pair is used to transmit torque to the first transmission shaft 561 when the first stirring shaft 510 rotates circumferentially. Specifically, the first gear pair includes a third bevel gear 563 and a fourth bevel gear 564, the third bevel gear 563 is arranged at the lower end of the first stirring shaft 510, and the fourth bevel gear 564 is arranged on the first transmission shaft 561 and meshes with the third bevel gear 563. The second gear pair is connected between the first transmission shaft 561 and the second transmission shaft 562, and the second gear pair is used to transfer torque to the second transmission shaft 562 when the first transmission shaft 561 rotates circumferentially. Specifically, the second gear pair includes a fifth bevel gear 565 and a sixth bevel gear 566, the fifth bevel gear 565 is arranged on the first transmission shaft 561, and the sixth bevel gear 566 is arranged on the second transmission shaft 562 and meshed with the fifth bevel gear 565. The third gear pair is connected between the second transmission shaft 562 and the second agitator shaft 540, and the third gear pair is used to transfer torque to the second agitator shaft 540 when the second transmission shaft 562 rotates circumferentially. Specifically, the third gear pair includes a first transmission gear 567 and a second transmission gear 568, the first transmission gear 567 is arranged on the second transmission shaft 562, and the second transmission gear 568 is arranged on the second agitator shaft 540 and meshed with the first transmission gear 567. Specifically, in the process of preparing the desulfurized slurry, the first stirring shaft 510 can transmit torque to the first transmission shaft 561 through the first gear pair, the first transmission shaft 561 can transmit torque to the second transmission shaft 562 through the second gear pair, and the second transmission shaft 562 can transmit torque to the second stirring shaft 540 through the third gear pair. However, the embodiment of the present application does not make any limitation to this. In other embodiments, the sixth bevel gear 566 can be provided on the second stirring shaft 540, so that the second transmission shaft 562 and the third gear pair can be eliminated.

[0039] In some embodiments, the speed ratios of the two gears of the third gear pair are different. For example, one of the first transmission gear 567 and the second transmission gear 568 of the third gear pair is a large gear and the other is a small gear, so that speed change can be achieved. However, the embodiments of the present application do not make any limitation to this.

[0040] In some embodiments, the linkage assembly 560 further includes a box body 570, which is fixed to the partition 120, and the first transmission shaft 561, the second transmission shaft 562, the first gear pair, the second gear pair and the third gear pair are all arranged in the box body 570. This arrangement can prevent the various components of the linkage assembly 560 from contacting with the moisture in the desulfurization slurry, and prevent the components from rusting and affecting the transmission effect. However, the embodiments of the present application do not make any limitation to this.

[0041] The power plant desulfurization slurry preparation and storage device of the embodiment of the present application is capable of storing the desulfurization slurry prepared in the preparation space in the storage space and then outputting it from the storage space to the desulfurization tower. This allows the preparation space to continuously prepare the desulfurization slurry, thereby allowing the device itself to continuously supply the desulfurization tower with desulfurization slurry. Compared with the intermittent preparation of desulfurization slurry in the prior art, this can improve the impact of the existing desulfurization slurry preparation method on the continuous operation of the desulfurization tower and avoid substandard emissions from the power plant due to fluctuations in the desulfurization efficiency.

[0042] One or more embodiments of this specification are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of this specification should be included in the scope of protection of this application.

[0043] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A desulfurization slurry preparation and storage device for a power plant, characterized in that: The device comprises a tank body, wherein the interior of the tank body comprises a preparation space, a partition and a storage space which are sequentially arranged from top to bottom; the preparation space is connected with a raw material feed pipe, and the raw material feed pipe is used to input pulping raw materials, and the pulping raw materials input into the preparation space can be stirred by a stirring component to form a desulfurized slurry; the partition is provided with a valve plate, and the valve plate can be closed or opened by a driving component, when closed, the preparation space and the storage space are not connected to each other, and when opened, the preparation space and the storage space are connected to each other, so that the desulfurized slurry can flow into the storage space; The storage space is connected to a slurry output pipe, and the slurry output pipe is used to output the desulfurization slurry.

2. The power plant desulfurization slurry preparation and storage device according to claim 1, characterized in that: The valve plate is rotatably arranged in the through hole of the partition plate, and the valve plate rotates relative to the partition plate to realize opening or closing.

3. The power plant desulfurization slurry preparation and storage device according to claim 2, characterized in that: The valve plate is provided with a limiting portion, and the limiting portion cooperates with the partition plate to limit the rotation angle of the valve plate.

4. The power plant desulfurization slurry preparation and storage device according to claim 2, characterized in that: The driving assembly includes a material storage rod and a material storage motor; the material storage rod is inserted into the tank body and connected to the valve plate; the material storage motor is arranged in the tank body and connected to the material storage rod, and the material storage motor is used to drive the material storage rod to rotate circumferentially, so that the material storage rod drives the valve plate to rotate relative to the partition.

5. The power plant desulfurization slurry preparation and storage device according to claim 4, characterized in that: The driving assembly further includes a first bevel gear and a second bevel gear; the first bevel gear is arranged on the material storage rod; the second bevel gear is arranged on the driving shaft of the material storage motor, and the second bevel gear is meshed with the first bevel gear.

6. The power plant desulfurization slurry preparation and storage device according to claim 1, characterized in that: The stirring component includes a first stirring component and a stirring motor; the first stirring component includes a first stirring shaft and a first stirring part; the first stirring shaft passes through the tank body; the first stirring part is arranged on the first stirring shaft and is located in the preparation space; the stirring motor is arranged on the tank body and connected to the first stirring shaft, and the stirring motor is used to drive the first stirring shaft to rotate circumferentially, so that the first stirring shaft drives the first stirring part to stir.

7. The power plant desulfurization slurry preparation and storage device according to claim 6, characterized in that: The stirring component also includes a second stirring component and a linkage component; the second stirring component includes a second stirring shaft and a second stirring part; the second stirring shaft is arranged in the storage space; the second stirring part is arranged on the second stirring shaft and is located in the storage space; the linkage component is connected between the second stirring shaft and the first stirring shaft, and the linkage component is used to drive the second stirring shaft to rotate circumferentially when the first stirring shaft rotates circumferentially, so that the second stirring shaft drives the second stirring part to stir.

8. The power plant desulfurization slurry preparation and storage device according to claim 7, characterized in that: The linkage assembly includes a first transmission shaft, a second transmission shaft, a first gear pair, a second gear pair and a third gear pair; the first transmission shaft is rotatably disposed on the partition and is perpendicular to the first stirring shaft; the second transmission shaft is rotatably disposed on the partition and is parallel to the first stirring shaft; The first gear pair is connected between the first transmission shaft and the first stirring shaft, and the first gear pair is used to transmit torque to the first transmission shaft when the first stirring shaft rotates circumferentially; The second gear pair is connected between the first transmission shaft and the second transmission shaft, and the second gear pair is used to transmit torque to the second transmission shaft when the first transmission shaft rotates circumferentially; The third gear pair is connected between the second transmission shaft and the second agitator shaft, and the third gear pair is used to transmit torque to the second agitator shaft when the second transmission shaft rotates circumferentially.

9. The power plant desulfurization slurry preparation and storage device according to claim 8, characterized in that: The speed ratios of the two gears of the third gear pair are different.

10. The power plant desulfurization slurry preparation and storage device according to claim 8, characterized in that: The linkage assembly also includes a box body, which is fixed to the partition plate, and the first transmission shaft, the second transmission shaft, the first gear pair, the second gear pair and the third gear pair are all arranged in the box body.

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