Limestone slurry pulping equipment for flue gas desulfurization of thermal power plant

Abstract

The invention discloses limestone slurry pulping equipment for flue gas desulfurization of a thermal power plant, and belongs to the field of limestone slurry pulping equipment. Comprising a crushing bin body, a pulping bin is fixedly connected to the lower surface of the crushing bin body, a water inlet communicates with the edge of the upper surface of the pulping bin, a motor base is fixedly connected to the portion, close to the top, of the outer surface of the crushing bin body, and a second driving motor is fixedly connected to the upper surface of the motor base. By arranging the crushing assembly, limestone is crushed into small particles, the small particles fall between the grinding frame and the grinding block, and the rotating grinding block grinds the small particles into powder, so that when the grinding block rotates, the limestone can be ground while being impacted and crushed, grinding and crushing can be performed synchronously, and the grinding efficiency is improved. And particles with different sizes are ground into limestone powder with the same size, and the situation that large particles are doped in the powder is avoided, so that the quality of subsequent pulping is ensured.

Description

Technical Field

[0001] The invention relates to the field of limestone powder pulping, and more specifically to a limestone slurry pulping device for flue gas desulfurization in thermal power plants. Background Art

[0002] Flue gas desulfurization refers to the removal of sulfur oxides (SO2 and SO3) from flue gas or other industrial waste gas. Flue gas desulfurization, referred to as FGD, in FGD technology, according to the type of desulfurizer, can be divided into the following five methods: calcium method based on CaCO3 (limestone), magnesium method based on MgO, sodium method based on Na2SO3, ammonia method based on NH3, and organic alkali method based on organic alkali.

[0003] Limestone slurry is an indispensable raw material in the limestone slurry supply system. In order to improve the slurrying efficiency during the limestone powder slurrying process, the limestone is usually crushed and then mixed through a mixing equipment. However, most of the mixing devices in the existing limestone powder slurrying equipment use a stirring element for repeated stirring, which does not have a circulating mixing effect. This operation method takes a long time to make slurry, the mixing is uneven, and the solubility of the obtained slurry is low, which affects the subsequent use effect.

[0004] In order to solve the above technical problems, the prior art has also proposed some solutions. For example, the Chinese patent application with application number 202110805738.5 discloses a limestone powder pulping device. The device is provided with a spiral pushing blade, so that the limestone powder mixed liquid inside the pulping cylinder is pushed downward under the drive of the driving shaft. Under the extrusion force of the push, the limestone powder mixed liquid is transported along the two pulping cylinders to the top of the pulping cylinder, and the collecting cover provided can gather the two streams of limestone powder mixed liquid, so that the conveying impact force will increase the mixed solubility of the limestone powder mixed liquid. However, the device will produce particles of different sizes during crushing. The different sizes of particles will cause different solubility of the particles, which will affect the pulping effect during pulping, resulting in poor effect of limestone slurry during desulfurization. Summary of the invention

[0005] In view of the problems existing in the prior art, the object of the present invention is to provide a limestone slurry pulping equipment for flue gas desulfurization in thermal power plants.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A limestone slurry pulping device for flue gas desulfurization in a thermal power plant comprises a crushing bin body, a pulping bin is fixedly connected to the lower surface of the crushing bin body, a water inlet is connected to the edge of the upper surface of the pulping bin, a motor seat is fixedly connected to the outer surface of the crushing bin body near the top, a second drive motor is fixedly connected to the upper surface of the motor seat, a rotating shaft is fixedly connected to the output end of the second drive motor, a crushing assembly for crushing is connected to the middle of the inner surface of the crushing bin body, and a filtering assembly for collecting solids is connected to the crushing assembly.

[0008] The crushing assembly includes a grinding frame fixed at the middle of the inner surface of the crushing bin and a bucket frame fixed at the bottom of the rotating shaft, the inner surface of the grinding frame is symmetrically fixedly connected with a fixing plate, three through grooves are opened inside the fixing plate, the lower surface of the bucket frame is fixedly connected with a grinding block, the outer surface of the bucket frame is evenly fixedly connected with four groups of crushing plates, and the upper surface of the bucket frame is evenly opened with mesh plates.

[0009] Optionally, the grinding blocks are located inside the grinding frame and slidably fit with each other. The number of crushing plates in each group is three and they are arranged from top to bottom. The crushing plates are fitted with through grooves. An impact assembly is connected to the inner surface of the crushing bin body near the top, and a dust suction assembly is connected to the edge of the upper surface of the crushing bin body.

[0010] Optionally, the impact assembly includes two first drive motors fixed to the inner surface of the crushing bin body, an annular rack rotatably connected to the top of the inner surface of the crushing bin body, and two extrusion plates sliding on the inner surface of the crushing bin body, the output end of the first drive motor extends to the inside of the crushing bin body and is fixedly connected to a gear, the inner surface of the annular rack is symmetrically fixedly connected to a moving plate, the upper surface of the extrusion plate is fixedly connected to a trapezoidal block, and the lower surface of the extrusion plate is fixedly connected to two rows of crushing cones.

[0011] Optionally, the gear and the annular rack are meshed with each other, the movable plate is located above the extrusion plate, and the extrusion plate is connected to the crushing bin body through a vertical slide groove.

[0012] Optionally, the dust suction assembly includes a support frame fixed at the edge of the upper surface of the crushing bin, two first air pumps fixed on the upper surface of the pulping bin, and a second air pump fixed on the upper surface of the grinding block, the upper surface of the support frame is fixedly connected to an air suction frame, the lower surface of the air suction frame is evenly provided with multiple air inlets, the upper surface of the air suction frame is connected to a first guide pipe, the output end of the first air pump is connected to the second guide pipe, and the input end of the second air pump is fixedly connected to an air intake sleeve.

[0013] Optionally, the other end of the first flow guide pipe is connected to the input end of the first air pump, and the other end of the second flow guide pipe extends to the interior of the pulping bin.

[0014] Optionally, the filter assembly includes a fixed sleeve fixed on the outer surface of the grinding frame and a transmission shaft fixed on the bottom of the air intake sleeve, the outer surface of the fixed sleeve is slidably connected to a filter frame, the outer surface of the filter frame is symmetrically connected to a support shaft, four stirring blades are fixedly connected to the bottom of the transmission shaft, and the top of the stirring blade is fixedly connected to a triangular block.

[0015] Optionally, the bottom of the transmission shaft extends out of the interior of the filter frame, the stirring blade is located below the filter frame, the bottom of the air intake sleeve passes through the grinding block and extends to the interior of the filter frame and is fixedly connected to the top of the transmission shaft, and the outer surface of the air intake sleeve is connected to a purification component.

[0016] Optionally, the purification component includes an annular frame sleeved on the outer surface of the air intake sleeve and an opening formed on the outer surface of the air intake sleeve, the outer surface of the annular frame is connected to four air intake pipes, and a purification filter element is fixedly connected to one side of the air intake pipe.

[0017] Optionally, one side of the air inlet pipe passes through a fixed sleeve, the purification filter element is located inside the pulping bin, and the opening is located inside the annular frame.

[0018] Compared with the prior art, the technical solution provided by the present invention has at least the following beneficial effects:

[0019] In the above scheme, a crushing assembly is provided to crush the limestone into small particles, and the small particles fall between the grinding frame and the grinding block. The rotating grinding block grinds the small particles into powder, so that when the grinding block rotates, it can impact and crush the limestone while grinding it. The grinding and crushing can be carried out simultaneously, and particles of different sizes can be ground into limestone powder of the same size, and large particles will not be mixed in the powder, thereby ensuring the quality of subsequent pulping.

[0020] By providing an impact assembly, the crushing cone breaks the limestone into smaller stones, so that the crushed small stones fall smoothly between the grinding frame and the grinding block for grinding, avoiding more stones from accumulating inside the crushing bin and being unable to be crushed, causing a jamming load on the equipment inside the crushing bin, and improving the service life of the equipment.

[0021] By providing a dust suction component, a strong suction force is generated at the air inlet to absorb the floating limestone dust, and an air curtain is formed between the air suction frame and the bucket frame. When the limestone powder diffuses, it is blocked by the air curtain and cannot diffuse to the outside, thereby further improving the adsorption effect of the air inlet. The absorbed limestone powder is transported to the water inside the pulping bin through the first air pump and the second guide pipe, thereby reducing the waste of limestone raw materials and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a cross-sectional structural schematic diagram of the present invention;

[0025] Figure 3 It is a schematic diagram of the fixing plate structure of the present invention;

[0026] Figure 4 The impact assembly structure of the present invention is schematically shown in FIG. Figure 1 ;

[0027] Figure 5 The impact assembly structure of the present invention is schematically shown in FIG. Figure 2 ;

[0028] Figure 6 It is a schematic diagram of the structure of the dust collection component of the present invention;

[0029] Figure 7 It is a schematic diagram of the structure of the filter assembly of the present invention;

[0030] Figure 8 It is a schematic diagram of the purification component structure of the present invention.

[0031] [Reference Signs]

[0032] 1. Crushing chamber; 2. Pulping chamber; 3. Water inlet; 4. Motor base;

[0033] 5. Crushing assembly; 51. Grinding frame; 52. Grinding block; 53. Bucket frame; 54. Fixed plate; 55. Crushing plate;

[0034] 56, impact assembly; 561, first drive motor; 562, gear; 563, ring rack; 564, moving plate; 565, extrusion plate; 566, crushing cone; 567, trapezoidal block;

[0035] 57, dust suction assembly; 571, support frame; 572, air suction frame; 573, air inlet; 574, first guide pipe; 575, first air pump; 576, second guide pipe; 577, second air pump; 578, air intake sleeve;

[0036] 58. through slot; 59. mesh plate;

[0037] 6. Filter assembly; 61. Fixed sleeve; 62. Filter frame; 63. Stirring blade; 64. Triangular block; 65. Support shaft;

[0038] 66, purification component; 661, ring frame; 662, purification filter element; 663, air intake pipe; 664, opening;

[0039] 67. Transmission shaft;

[0040] 7. A second driving motor; 8. A rotating shaft.

[0041] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0042] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0043] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0044] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0045] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0046] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0047] like Figures 1 to 8 As shown, an embodiment of the present invention provides a limestone slurry pulping equipment for flue gas desulfurization in a thermal power plant, including a crushing bin body 1, a pulping bin 2 is fixedly connected to the lower surface of the crushing bin body 1, a water inlet 3 is connected to the edge of the upper surface of the pulping bin 2, a motor seat 4 is fixedly connected to the outer surface of the crushing bin body 1 near the top, a second drive motor 7 is fixedly connected to the upper surface of the motor seat 4, a rotating shaft 8 is fixedly connected to the output end of the second drive motor 7, a crushing component 5 for crushing is connected to the middle of the inner surface of the crushing bin body 1, and a filtering component 6 for collecting solids is connected to the crushing component 5.

[0048] like Figure 2 and Figure 3 As shown, the crushing assembly 5 includes a grinding frame 51 fixed at the middle of the inner surface of the crushing bin body 1 and a bucket frame 53 fixed at the bottom of the rotating shaft 8, the inner surface of the grinding frame 51 is symmetrically fixedly connected with a fixing plate 54, the interior of the fixing plate 54 is provided with three through grooves 58, the lower surface of the bucket frame 53 is fixedly connected with a grinding block 52, the outer surface of the bucket frame 53 is evenly fixedly connected with four groups of crushing plates 55, and the upper surface of the bucket frame 53 is evenly provided with a mesh plate 59.

[0049] The grinding blocks 52 are located inside the grinding frame 51 and are slidably fitted with each other. There are three crushing plates 55 in each group, which are arranged from top to bottom. The crushing plates 55 are fitted with the through grooves 58. An impact assembly 56 is connected to the inner surface of the crushing bin body 1 near the top, and a dust collection assembly 57 is connected to the edge of the upper surface of the crushing bin body 1.

[0050] Pour the limestone into the crushing bin 1, turn on the second drive motor 7 to drive the rotating shaft 8 to rotate, the rotating shaft 8 drives the bucket frame 53 and the grinding block 52 to rotate synchronously at high speed, the limestone slides from the surface of the bucket frame 53 to between the grinding frame 51 and the bucket frame 53, when the bucket frame 53 drives multiple groups of crushing plates 55, it pushes the limestone to approach and contact the fixed plate 54 during rotation, the limestone is impacted and crushed into small particles by the high-speed rotating crushing plates 55, the small particles fall between the grinding frame 51 and the grinding block 52, the rotating grinding block 52 grinds the small particles into powder, so that the grinding block 52 can impact and crush the limestone while grinding when rotating, and can grind and crush synchronously, and grind particles of different sizes into limestone powder of uniform size, and large particles will not be mixed in the powder, thereby ensuring the quality of subsequent pulping.

[0051] like Figure 4 and Figure 5 As shown, the impact assembly 56 includes two first drive motors 561 fixed on the outer surface of the crushing bin body 1, an annular rack 563 rotatably connected to the top of the inner surface of the crushing bin body 1, and two extrusion plates 565 sliding on the inner surface of the crushing bin body 1. The output end of the first drive motor 561 extends to the inside of the crushing bin body 1 and is fixedly connected to a gear 562. The inner surface of the annular rack 563 is symmetrically fixedly connected to a moving plate 564. The upper surface of the extrusion plate 565 is fixedly connected to a trapezoidal block 567. The lower surface of the extrusion plate 565 is fixedly connected to two rows of crushing cones 566.

[0052] The gear 562 is meshed with the annular rack 563 , the moving plate 564 is located above the squeezing plate 565 , and the squeezing plate 565 is connected to the crushing bin body 1 through a vertical slide groove.

[0053] When the limestone enters the interior of the crushing bin 1, the limestone with a larger diameter cannot fall between the grinding frame 51 and the grinding block 52, and will continuously roll between the bucket frame 53 and the crushing bin 1. At this time, the first driving motor 561 is turned on to drive the gear 562 to rotate, and the gear 562 drives the annular rack 563 meshing with it to rotate, and the annular rack 563 simultaneously drives the two movable plates 564 to rotate, and the movable plates 564 slide relatively toward the inclined edges of the trapezoidal blocks 567, and the movable plates 564 push the trapezoidal blocks 567 and the extrusion plates 565 downward rapidly, and the extrusion plates 565 drive multiple crushing cones 566 to move downward, and the crushing cones 566 hit the limestone, and the crushing cones 566 crush the limestone into smaller stones, so that the crushed small stones smoothly fall between the grinding frame 51 and the grinding block 52 for grinding, thereby avoiding more stones accumulating inside the crushing bin 1 and being unable to be crushed, causing the stuck load of the equipment inside the crushing bin 1, and improving the service life of the equipment.

[0054] like Figure 2 , Figure 6 and Figure 8 As shown, the dust suction assembly 57 includes a support frame 571 fixed at the edge of the upper surface of the crushing bin body 1, two first air pumps 575 fixed on the upper surface of the pulping bin 2, and a second air pump 577 fixed on the upper surface of the grinding block 52. The upper surface of the support frame 571 is fixedly connected to an air suction frame 572, and a plurality of air inlets 573 are evenly arranged on the lower surface of the air suction frame 572. The upper surface of the air suction frame 572 is connected to a first guide pipe 574, the output end of the first air pump 575 is connected to the second guide pipe 576, and the input end of the second air pump 577 is fixedly connected to an air intake sleeve 578.

[0055] The other end of the first flow guide pipe 574 is connected to the input end of the first air pump 575 , and the other end of the second flow guide pipe 576 extends to the interior of the pulping chamber 2 .

[0056] In practice, crushing dry limestone will generate a large amount of dust, which will spread to the surroundings. If the workers inadvertently inhale it, it will cause harm to their health. At the same time, the limestone powder will pollute the surrounding environment. Therefore, the two first air pumps 575 are turned on to operate. The first air pump 575 evacuates the inside of the first guide pipe 574. The first guide pipe 574 is connected to the suction frame 572, so that a strong suction force is generated at the air inlet 573 to adsorb the floating limestone dust. At the same time, the second air pump 577 works to blow air into the inside of the bucket frame 53, and the air flow is ejected outward through the mesh plate 59. The direction of the air flow is perpendicular to the surface of the suction frame 572, so that an air curtain is formed between the suction frame 572 and the bucket frame 53. The limestone powder is blocked by the air curtain when it diffuses and cannot diffuse to the outside, which further improves the adsorption effect of the air inlet 573. The absorbed limestone powder is transported to the water inside the pulping bin 2 through the first air pump 575 and the second guide pipe 576, thereby reducing the waste of limestone raw materials and saving costs.

[0057] like Figure 7 and Figure 8 As shown, the filter assembly 6 includes a fixed sleeve 61 fixed on the outer surface of the grinding frame 51 and a transmission shaft 67 fixed on the bottom of the air intake sleeve 578, the outer surface of the fixed sleeve 61 is slidably connected to a filter frame 62, the outer surface of the filter frame 62 is symmetrically connected to a support shaft 65, four stirring blades 63 are fixedly connected to the bottom of the transmission shaft 67, and a triangular block 64 is fixedly connected to the top of the stirring blade 63.

[0058] The bottom of the transmission shaft 67 extends out of the interior of the filter frame 62, the stirring blade 63 is located below the filter frame 62, the bottom of the air intake sleeve 578 passes through the grinding block 52 and extends to the interior of the filter frame 62 and is fixedly connected to the top of the transmission shaft 67, and the outer surface of the air intake sleeve 578 is connected to the purification component 66.

[0059] When the ground limestone enters the filter frame 62 through the fixed sleeve 61, since the filter frame 62 is in the water inside the pulping bin 2, the limestone powder enters the filter frame 62 and contacts with the water to form lime slurry. The water-insoluble solids in the limestone powder are blocked and collected by the filter frame 62 to prevent the solids from being mixed in the limestone slurry and affecting the quality of the limestone slurry. At the same time, the air intake sleeve 578 rotates with the grinding block 52, driving the transmission shaft 67 to rotate, and the transmission shaft 67 drives the four stirring The blades 63 rotate to stir the liquid inside the pulping bin 2, so that the limestone powder and water are more fully integrated. At the same time, the hypotenuse of the triangular block 64 gradually approaches the support shaft 65 and slides against each other. The triangular block 64 lifts the support shaft 65 upward, so that the filter frame 62 moves up on the outside of the fixed sleeve 61. When the triangular block 64 passes the support shaft 65, the filter frame 62 descends. In this cycle, the filter frame 62 is constantly shaken, so that impurities blocked in the mesh of the filter frame 62 can be shaken off, thereby ensuring the fluidity of the filter frame 62.

[0060] like Figure 8 As shown, the purification component 66 includes an annular frame 661 sleeved on the outer surface of the air intake sleeve 578 and an opening 664 opened on the outer surface of the air intake sleeve 578. The outer surface of the annular frame 661 is connected to four air intake pipes 663, and a purification filter element 662 is fixedly connected to one side of the air intake pipe 663.

[0061] One side of the air inlet pipe 663 passes through the fixed sleeve 61 , the purification filter element 662 is located inside the pulping chamber 2 , and the opening 664 is located inside the annular frame 661 .

[0062] When limestone reacts with water, a large amount of pungent odor is produced. At this time, when the second air pump 577 is working, air is pumped into the air intake sleeve 578, and the gas enters the interior of the air intake pipe 663 from the interior of the purification filter element 662. The purification filter element 662 purifies and removes odors from the gas, so that the gas ejected by the second air pump 577 is odorless and safe.

[0063] The working process of the technical solution provided by the present invention is as follows:

[0064] First, turn on the second drive motor 7 to drive the grinding block 52 to rotate through transmission. The grinding block 52 crushes and grinds the limestone. At the same time, the impact component 56 can crush the limestone with a larger diameter. The dust suction component 57 absorbs the powder generated during the crushing to reduce the powder from polluting the surrounding environment.

[0065] Then, the filter frame 62 can collect water-insoluble solids to avoid affecting the quality of the limestone slurry. At the same time, with the cooperation of the triangular block 64 and the support shaft 65, the filter frame 62 is shaken to ensure the fluidity of the filter frame 62. The purification component 66 purifies and deodorizes the gas generated by the reaction of limestone powder and water.

[0066] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0067] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A limestone slurry pulping equipment for flue gas desulfurization in a thermal power plant, comprising a crushing bin, a pulping bin fixedly connected to the lower surface of the crushing bin, a water inlet connected to the edge of the upper surface of the pulping bin, a motor seat fixedly connected to the outer surface of the crushing bin near the top, a second drive motor fixedly connected to the upper surface of the motor seat, and a rotating shaft fixedly connected to the output end of the second drive motor; Features: A crushing assembly for crushing is connected to the middle of the inner surface of the crushing bin, and a filtering assembly for collecting solids is connected to the crushing assembly; The crushing assembly includes a grinding frame fixed at the middle of the inner surface of the crushing bin and a bucket frame fixed at the bottom of the rotating shaft, the inner surface of the grinding frame is symmetrically fixedly connected with a fixing plate, three through grooves are opened inside the fixing plate, the lower surface of the bucket frame is fixedly connected with a grinding block, the outer surface of the bucket frame is evenly fixedly connected with four groups of crushing plates, and the upper surface of the bucket frame is evenly opened with mesh plates.

2. The limestone slurry slurry making equipment for flue gas desulfurization in thermal power plants according to claim 1, characterized in that: The grinding blocks are located inside the grinding frame and slideably fit with each other. There are three crushing plates in each group and they are arranged from top to bottom. The crushing plates are fitted with through grooves. An impact assembly is connected to the inner surface of the crushing bin body near the top, and a dust collection assembly is connected to the edge of the upper surface of the crushing bin body.

3. The limestone slurry pulping equipment for flue gas desulfurization in thermal power plants according to claim 2, characterized in that: The impact assembly includes two first drive motors fixed on the outer surface of the crushing bin, an annular rack rotatably connected to the inner surface of the crushing bin near the top, and two extrusion plates sliding on the inner surface of the crushing bin, the output end of the first drive motor extends into the inside of the crushing bin and is fixedly connected to a gear, the inner surface of the annular rack is symmetrically fixedly connected to a moving plate, the upper surface of the extrusion plate is fixedly connected to a trapezoidal block, and the lower surface of the extrusion plate is fixedly connected to two rows of crushing cones.

4. The limestone slurry pulping equipment for flue gas desulfurization in thermal power plants according to claim 3, characterized in that: The gear and the annular rack are meshed with each other, the movable plate is located above the extrusion plate, and the extrusion plate is connected to the crushing bin body through a vertical slide groove.

5. The limestone slurry slurry making equipment for flue gas desulfurization in thermal power plants according to claim 4, characterized in that: The dust suction assembly includes a support frame fixed at the edge of the upper surface of the crushing bin, two first air pumps fixed on the upper surface of the pulping bin, and a second air pump fixed on the upper surface of the grinding block. The upper surface of the support frame is fixedly connected to an air suction frame, and a plurality of air inlets are evenly arranged on the lower surface of the air suction frame. The upper surface of the air suction frame is connected to a first guide pipe, the output end of the first air pump is connected to the second guide pipe, and the input end of the second air pump is fixedly connected to an air intake sleeve.

6. The limestone slurry pulping equipment for flue gas desulfurization in thermal power plants according to claim 5, characterized in that: The other end of the first flow guide pipe is connected to the input end of the first air pump, and the other end of the second flow guide pipe extends to the interior of the pulping bin.

7. The limestone slurry slurry making equipment for flue gas desulfurization in thermal power plants according to claim 6, characterized in that: The filter assembly includes a fixed sleeve fixed on the outer surface of the grinding frame and a transmission shaft fixed on the bottom of the air intake sleeve, the outer surface of the fixed sleeve is slidably connected to a filter frame, the outer surface of the filter frame is symmetrically connected to a support shaft, the bottom of the transmission shaft is fixedly connected to four stirring blades, and the top of the stirring blade is fixedly connected to a triangular block.

8. The limestone slurry slurry making equipment for flue gas desulfurization in thermal power plants according to claim 7, characterized in that: The bottom of the transmission shaft extends out of the filter frame, the stirring blade is located below the filter frame, the bottom of the air intake sleeve passes through the grinding block and extends to the inside of the filter frame and is fixedly connected to the top of the transmission shaft, and the outer surface of the air intake sleeve is connected to a purification component.

9. The limestone slurry pulping equipment for flue gas desulfurization in thermal power plants according to claim 8, characterized in that: The purification component includes an annular frame sleeved on the outer surface of the air intake sleeve and an opening formed on the outer surface of the air intake sleeve. The outer surface of the annular frame is connected to four air intake pipes, and a purification filter element is fixedly connected to one side of the air intake pipe.

10. The limestone slurry slurry making equipment for flue gas desulfurization in thermal power plants according to claim 9, characterized in that: One side of the air inlet pipe passes through the fixed sleeve, the purification filter element is located inside the pulping bin, and the opening is located inside the annular frame.

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