Safe and efficient high-pressure fan

Abstract

The invention discloses a safe and efficient high-pressure fan, and relates to the technical field of fans, the safe and efficient high-pressure fan comprises a fan shell and an impeller, the impeller is composed of two mounting plates and a plurality of blades, and the safe and efficient high-pressure fan further comprises a spraying assembly; the spraying assembly comprises a spraying part and a ventilation pipe; the spraying part comprises a spraying ball, the spraying ball is a hollow ball body, the spraying ball is movably connected into the fan shell, and the spraying ball is filled with aluminum oxide powder; a plurality of nozzles are fixed to the side face, away from the blades, of the spraying ball, one end of a ventilation pipe extends into the spraying ball, the unoccupied end of the ventilation pipe is connected with an air pump, the interior of the spraying ball is pressurized through the ventilation pipe, and aluminum oxide powder is sprayed out of the nozzles; a driving device is mounted at one end of the outer part of the fan shell and is used for driving the impeller to rotate; the coal ash particles adsorbed on the blades can be reduced while water in the coal ash is absorbed, the explosion risk is reduced, and the conveying safety is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of fans, and in particular to a safe and efficient high-pressure fan. Background Art

[0002] The annual discharge of fly ash from coal-fired power plants is increasing year by year. The direct discharge of fly ash will pollute the atmospheric environment. In order to save energy and protect the environment, fly ash is usually recycled. Fly ash can be used as raw materials for building materials such as concrete admixtures, road base materials, filling soils, bricks and tiles. After being processed through processes such as crushing, grinding, and grading, fly ash is usually transported to processing equipment by a high-pressure fan. The high-pressure fan can convert the kinetic energy of gas by means of centrifugal force to achieve the transportation of gas or powdery materials. Since fly ash contains a certain amount of moisture, it is not only easy to adhere to the impeller, but also easy to cause an explosion, resulting in a large potential safety hazard during the transportation process. Summary of the Invention

[0003] By providing a safe and efficient high-pressure fan in the embodiments of the present application, the problem in the prior art that due to the presence of a certain amount of moisture in fly ash, it is not only easy to adhere to the impeller, but also easy to cause an explosion, resulting in a large potential safety hazard during the transportation process is solved.

[0004] The embodiments of the present application provide a safe and efficient high-pressure fan, including a fan housing and an impeller. The impeller is composed of two mounting plates and a plurality of blades, and further includes a spraying assembly;

[0005] The spraying assembly includes a spraying part and a ventilation pipe;

[0006] The spraying part includes a spraying ball. The spraying ball is a hollow sphere and is movably connected inside the fan housing. The spraying ball is filled with alumina powder;

[0007] A plurality of nozzles are fixed on the side of the spraying ball away from the blades. One end of the ventilation pipe extends into the spraying ball, and the remaining end of the ventilation pipe is connected to an air pump. By pressurizing the inside of the spraying ball through the ventilation pipe, the alumina powder is ejected from the nozzles;

[0008] A driving device is installed at one end outside the fan housing. The driving device is used to drive the impeller to rotate. When the impeller rotates, the blades can collide with the bottom of the spraying ball, causing the spraying ball to swing.

[0009] Further, the spraying part further includes a movable pipe. The movable pipe is movably connected inside the fan housing, and the spraying ball is fixed on the remaining end of the movable pipe;

[0010] The inside of the spraying ball and the movable pipe is interconnected, and one end of the ventilation pipe extends into the movable pipe;

[0011] A limiting spring is connected between the movable pipe and the fan housing;

[0012] An elastic membrane is fixed near the free end of the movable pipe inside the spraying ball. The inside of the spraying ball is divided into two spaces by the elastic membrane. One space is the air intake space, and the free end of the movable pipe extends into the air intake space. The other space is the material storage space.

[0013] Furthermore, there are eight spraying parts. One spraying part is located between two blades. The ventilation pipe is an annular pipe, and a plurality of distribution pipes are fixed on its air outlet end. The free end of one distribution pipe extends into one movable pipe.

[0014] Furthermore, eight material storage boxes are fixed outside the fan housing. The material storage boxes are rectangular bodies with a hollow inside and are filled with alumina powder. A feed pipe is fixed on each material storage box;

[0015] One end of one feed pipe extends into one material storage box, and the other end of one feed pipe extends into the material storage space of one spraying ball.

[0016] Furthermore, each movable pipe is inclined, and the free end of the movable pipe is inclined towards the blade direction. A hitting ball is fixed on each movable pipe near the fan housing through a bracket;

[0017] The hitting ball is a rubber sphere, and when the spraying ball swings, it can drive the hitting ball to hit the inner wall of the fan housing.

[0018] Furthermore, the spraying assembly further includes a crushing part;

[0019] The crushing part includes a first gas soft bag, and the first gas soft bag is a rubber bag body with a hollow inside;

[0020] An air outlet cylinder is fixed on the top of the fan housing. The air outlet cylinder is a square cylinder. The first gas soft bag is fixed on the inner wall of the air outlet cylinder near the impeller. There are two first gas soft bags, and the two first gas soft bags are parallel;

[0021] A branch pipe is fixed on the ventilation pipe. The free end of the branch pipe is fixed with a first air pipe. The first air pipe has two air outlet ends, and one air outlet end of the first air pipe extends into one first gas soft bag;

[0022] A first crushing plate is fixed on each first gas soft bag away from the inner wall of the air outlet cylinder. A triangular first crushing block is fixed on each first crushing plate.

[0023] Furthermore, the crushing part further includes a second gas soft bag and a second air pipe;

[0024] The second gas soft bag is a rubber bag body with a hollow inside, and it is fixed on the inner wall of the air outlet cylinder away from the impeller. There are two second gas soft bags, and one second gas soft bag is parallel to one first gas soft bag;

[0025] A breaking plate two is fixed at a position far from the inner wall of the air outlet pipe on each of the gas soft bags two, and a triangular breaking block two is fixed on each breaking plate two;

[0026] The air inlet end of the air pipe two is connected to an air extraction pump, and there are two air outlet ends of the air pipe two. One air outlet end of the air pipe two extends into one of the gas soft bags two.

[0027] Further, when the two gas soft bags one are evacuated and contracted, causing the two breaking plates one to move away from each other, immediately afterwards, the two gas soft bags two are inflated and expanded rapidly, causing the two breaking plates two to move towards each other.

[0028] Further, the spraying assembly further includes a cleaning part, and the cleaning part is located above the impeller;

[0029] The cleaning part includes an air inlet pipe, the air inlet pipe is fixed on the movable pipe near the blade, the free end of the air inlet pipe is fixed with an installation box, a valve is fixed on the air inlet pipe, and an opening and closing valve is fixed on the movable pipe near the spraying ball;

[0030] The installation box is a box body with a hollow interior. The free end of the air inlet pipe extends into the installation box. An opening is formed at the bottom of the installation box, and a telescopic bladder is fixed at its bottom. The telescopic bladder is located above the impeller;

[0031] The telescopic bladder is a strip-shaped rubber bladder with a hollow interior and an opening at one end close to the installation box. The opening of the telescopic bladder coincides with the opening of the installation box;

[0032] A cleaning bladder is fixed on one side of the telescopic bladder close to the blade through a shunt pipe;

[0033] The cleaning bladder is a rubber bladder with a hollow interior. There are two cleaning bladders, and the two cleaning bladders are parallel;

[0034] One air guide pipe is fixed on each side of the installation box. The free end of one air guide pipe is connected to one shunt pipe.

[0035] Further, a cleaning brush is fixed on each cleaning bladder close to the blade. The length of the cleaning brush is not greater than the length of the blade. After the cleaning bladder expands, it can drive the cleaning brush to contact the side surface of the blade in the long side direction;

[0036] There are eight cleaning parts, and one cleaning part is located between two blades.

[0037] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0038] Through the provided spraying component, when fly ash enters the fan housing, air is introduced into the ventilation pipe by an air pump to increase the pressure inside the spraying ball, and the alumina powder inside the spraying ball is ejected from the nozzle to absorb the moisture in the fly ash. At the same time, when the impeller rotates, it can drive the spraying ball to swing. After the spraying ball rises and then falls, it can strike the blades, reducing the fly ash particles adsorbed on the blades. It can achieve the absorption of the moisture in the fly ash while reducing the fly ash particles adsorbed on the blades, reducing the risk of explosion and improving the safety of transportation. Description of the Drawings

[0039] Figure 1 Left perspective structural schematic diagram of the safe and efficient high-pressure fan of the present invention;

[0040] Figure 2 Right perspective structural schematic diagram of the safe and efficient high-pressure fan of the present invention;

[0041] Figure 3 Stereoscopic sectional structural schematic diagram of the fan housing of the safe and efficient high-pressure fan of the present invention;

[0042] Figure 4 Front view sectional structural schematic diagram of the fan housing of the safe and efficient high-pressure fan of the present invention;

[0043] Figure 5 Structural schematic diagram of the positional relationship between the spraying ball and the blades of the safe and efficient high-pressure fan of the present invention;

[0044] Figure 6 Structural schematic diagram of the positional relationship between the ventilation pipe and the fan housing of the safe and efficient high-pressure fan of the present invention;

[0045] Figure 7 Structural schematic diagram of the connection relationship between the storage box and the feed pipe of the safe and efficient high-pressure fan of the present invention;

[0046] Figure 8 Stereoscopic sectional structural schematic diagram of the spraying ball of the safe and efficient high-pressure fan of the present invention;

[0047] Figure 9 Structural schematic diagram of the connection relationship between the movable pipe and the spraying ball of the safe and efficient high-pressure fan of the present invention;

[0048] Figure 10 Structural schematic diagram of the connection relationship between the hitting ball and the movable pipe of the safe and efficient high-pressure fan of the present invention;

[0049] Figure 11 Structural schematic diagram of the connection relationship between the ventilation pipe and the distribution pipe of the safe and efficient high-pressure fan of the present invention;

[0050] Figure 12Structural schematic diagram of the connection relationship between the branch pipe and the air pipe I of the high-pressure blower of the present invention for safety and high efficiency;

[0051] Figure 13 Structural schematic diagram of the positional relationship between the gas soft bag I and the crushing plate I of the high-pressure blower of the present invention for safety and high efficiency;

[0052] Figure 14 Structural schematic diagram of the state of the gas soft bag II of the high-pressure blower of the present invention for safety and high efficiency after expansion;

[0053] Figure 15 Structural schematic diagram of the positional relationship between the cleaning part and the blades of the high-pressure blower of the present invention for safety and high efficiency;

[0054] Figure 16 Structural schematic diagram of the connection relationship between the installation box and the telescopic bag of the high-pressure blower of the present invention for safety and high efficiency;

[0055] Figure 17 Structural schematic diagram of the state of the cleaning brush cleaning the blade surface after the cleaning bag of the high-pressure blower of the present invention for safety and high efficiency expands;

[0056] Figure 18 Structural schematic diagram of the connection relationship between the cleaning bag and the cleaning brush of the high-pressure blower of the present invention for safety and high efficiency.

[0057] In the figure: 100, blower housing; 110, air inlet tube; 120, air outlet tube; 130, impeller; 131, mounting plate; 132, blades;

[0058] 200, spraying assembly; 210, spraying part; 211, spraying ball; 2111, elastic membrane; 212, movable tube; 213, limiting spring; 214, hitting ball;

[0059] 220, ventilation pipe; 221, distribution pipe; 222, branch pipe; 2221, air pipe I;

[0060] 230, storage box; 231, feed pipe;

[0061] 240, crushing part; 241, gas soft bag I; 2411, crushing plate I; 2412, crushing block I; 242, gas soft bag II; 2421, crushing plate II; 2422, crushing block II; 243, air pipe II;

[0062] 250, cleaning part; 251, installation box; 2511, air guide pipe; 252, telescopic bag; 2521, shunt pipe; 253, cleaning bag; 2531, cleaning brush; 254, air inlet pipe. Detailed implementation manners

[0063] For the convenience of understanding the present invention, the present application will be described more comprehensively below with reference to the relevant drawings; the preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0064] It should be noted that the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0065] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0066] As Figures 1 to 4 shown, the present application provides a safe and efficient high-pressure blower, which includes a blower housing 100 and an impeller 130. The impeller 130 is rotatably connected to the middle of the blower housing 100. One end of the blower housing 100 away from the driving device is fixed with an air inlet cylinder 110. The air inlet cylinder 110 is a cylindrical cylinder, and the axis of the air inlet cylinder 110 coincides with the axis of the impeller 130. The impeller 130 is composed of two mounting plates 131 and a plurality of blades 132. There are eight blades 132, and the plurality of blades 132 are evenly spaced and fixed between the two mounting plates 131. The plurality of blades 132 are annularly distributed between the two mounting plates 131. The mounting plate 131 is a circular ring plate. One mounting plate 131 is rotatably connected to the blower housing 100 through a rotating shaft. One mounting plate 131 is close to the air inlet cylinder 110, and there is a gap between the mounting plate 131 close to the air inlet cylinder 110 and the blower housing 100. It also includes a spraying assembly 200;

[0067] The spraying assembly 200 includes a spraying part 210 and a ventilation pipe 220;

[0068] The spraying part 210 includes a spraying ball 211. The spraying ball 211 is a hollow sphere inside, and it is movably connected to the blower housing 100. The spraying ball 211 is filled with alumina powder. The alumina powder can absorb the moisture in fly ash and improve its physical properties. At the same time, the alumina powder can improve the compressive strength, wear resistance and durability of concrete, thereby improving the utilization efficiency of fly ash as a building material;

[0069] A plurality of nozzles are fixed to the side of the spraying ball 211 away from the blade 132. The nozzles are used to spray alumina powder. One end of the air pipe 220 extends into the spraying ball 211. The free end of the air pipe 220 is connected to an air pump. The air pump is fixed outside the fan housing 100. The air pipe 220 is a flexible pipe and can adapt to the swing range of the spraying ball 211. The spraying ball 211 is pressurized through the air pipe 220, so that the alumina powder is ejected from the nozzles;

[0070] A driving device is installed at one end outside the fan housing 100. The driving device is used to drive the impeller 130 to rotate. When the impeller 130 rotates, the blade 132 can collide with the bottom of the spraying ball 211, causing the spraying ball 211 to swing. That is to say, when the impeller 130 rotates, it can drive the spraying ball 211 to swing. After the spraying ball 211 rises and then falls, it can strike the blade 132, reducing the fly ash particles adsorbed on the blade 132.

[0071] It should be noted that the spraying ball 211 is preferably a sphere made of polytetrafluoroethylene, ensuring that the spraying ball 211 can withstand the collision of the blade 132, with low loss, and the noise generated when the spraying ball 211 collides with the blade 132 is relatively small.

[0072] Specifically, as Figures 5 to 8 shown, the spraying part 210 further includes a movable pipe 212. The movable pipe 212 is movably connected inside the fan housing 100. The movable pipe 212 is movably hinged inside the fan housing 100. The spraying ball 211 is fixed to the free end of the movable pipe 212;

[0073] The spraying ball 211 and the movable pipe 212 are internally connected. One end of the air pipe 220 extends into the movable pipe 212;

[0074] A limiting spring 213 is connected between the movable pipe 212 and the fan housing 100.

[0075] It is worth noting that when the spraying ball 211 is lifted, the limiting spring 213 is compressed, so that the limiting spring 213 stores elastic potential energy. When the spraying ball 211 falls, the limiting spring 213 releases the elastic potential energy, further striking the blade 132 and at the same time driving the spraying ball 211 to reset.

[0076] An elastic membrane 2111 is fixed near the free end of the movable pipe 212 inside the spraying ball 211. The elastic membrane 2111 is airtightly fixed to the inner wall of the spraying ball 211. The inside of the spraying ball 211 is divided into two spaces by the elastic membrane 2111. One space is an air inlet space. The free end of the movable pipe 212 extends into the air inlet space. When air enters the air inlet space, the elastic membrane 2111 is pressurized, causing the elastic membrane 2111 to expand and pressurize the storage space. One space is a storage space, and the storage space is filled with alumina powder.

[0077] It should be noted that when the spraying ball 211 is lifted, the limiting spring 213 is compressed, so that the limiting spring 213 stores elastic potential energy. When the spraying ball 211 falls, the limiting spring 213 releases the elastic potential energy, further hitting the blade 132 and driving the spraying ball 211 to reset at the same time.

[0078] Specifically, as Figures 5 to 7 shown, there are eight spraying parts 210. One spraying part 210 is located between two blades 132. The air supply pipe 220 is an annular pipe, and a plurality of distribution pipes 221 are fixed on the air outlet end thereof. The distribution pipes 221 are flexible hoses, which can adapt to the movement range of the movable pipe 212. The free end of one distribution pipe 221 extends into one movable pipe 212.

[0079] It is easy to understand that the distance between each blade 132 and the spraying ball 211 is not much different. When the impeller 130 rotates, each spraying ball 211 can contact the blade 132 evenly, ensuring the operation stability of the impeller 130 while increasing the vibration frequency of the blade 132, reducing the fly ash adsorbed on the blade 132, thereby reducing the dust accumulation at the blade 132. At the same time, the sprayed alumina powder can cover the internal space of the fan housing 100, better absorbing the moisture in the fly ash.

[0080] Specifically, as Figures 5 to 11 shown, eight storage boxes 230 are fixed outside the fan housing 100. The storage boxes 230 are rectangular bodies with hollow interiors and are filled with alumina powder. Each storage box 230 is fixed with a feed pipe 231. The storage boxes 230 have a large capacity and can store a large amount of alumina powder at one time, reducing the number of times of repeated feeding;

[0081] One end of one feed pipe 231 extends into one storage box 230, and the other end of one feed pipe 231 extends into the storage space of one spraying ball 211.

[0082] It should be noted that when air is introduced into the air supply pipe 220 through an air pump, the pressure in the spraying ball 211 increases. The elastic membrane 2111 expands and squeezes the alumina powder in the storage space, so that the alumina powder is ejected from the nozzle. When air is pumped out of the air supply pipe 220 through the air pump, the elastic membrane 2111 contracts to generate a negative pressure in the storage space, sucking the alumina powder in the storage box 230 along the feed pipe 231 into the storage space, timely replenishing the alumina powder in the spraying ball 211, enabling the feeding action to be realized during the fly ash conveying process, without frequent shutdown for adding, improving the processing efficiency and reducing the equipment loss.

[0083] Specifically, as Figures 5 to 11As shown, each of the movable pipes 212 is inclined, and the free end of the movable pipe 212 is inclined towards the direction of the blade 132. A striking ball 214 is fixed to each movable pipe 212 near the blower housing 100 by a bracket, and the striking ball 214 is used to strike the inner wall of the blower housing 100;

[0084] The striking ball 214 is a rubber sphere, which means that when the striking ball 214 strikes the blower housing 100, the noise is small and the impact force is large, so as to reduce the pulverized coal particles adsorbed on the inner wall of the blower housing 100. When the spraying ball 211 swings, it can drive the striking ball 214 to strike the inner wall of the blower housing 100.

[0085] It should be noted that when the spraying ball 211 is raised, it can drive the striking ball 214 to be raised at the same time. By using the striking ball 214 to strike the inner wall of the blower housing 100, the fly ash on the inner wall of the blower housing 100 can be shaken off, reducing the dust accumulation on the inner wall of the blower housing 100.

[0086] In the above embodiment, the impeller 130 is driven by a driving device to perform rotational conveying work, sucking fly ash from the air inlet pipe 110 and conveying it from the air outlet pipe 120 to the crushing process. When the fly ash enters the blower housing 100, air is introduced into the ventilation pipe 220 through an air pump, so that the distribution pipe 221 is ventilated and the pressure in the spraying ball 211 is increased. The alumina powder in the spraying ball 211 is ejected from the nozzle to absorb the moisture in the fly ash. At the same time, whenever the blade 132 passes by the spraying ball 211, it can touch the bottom of the spraying ball 211 and drive the spraying ball 211 to swing, so that the spraying ball 211 sprays alumina powder while swinging. As the spraying ball 211 swings, it can strike the blade 132, reducing the fly ash particles adsorbed on the blade 132. While the spraying ball 211 swings, the movable pipe 212 swings synchronously, thereby driving the striking ball 214 to continuously hammer the inner wall of the blower housing 100, cleaning the fly ash particles adsorbed on the inner wall of the blower housing 100, and being able to absorb the moisture of the fly ash while reducing the fly ash particles adsorbed on the inner wall of the blade 132 and the blower housing 100, reducing the loss of fly ash, reducing the risk of explosion, and improving the safety of conveying.

[0087] In some embodiments of the present application, considering that fly ash usually enters the crushing equipment directly after being conveyed for crushing treatment, fly ash is mostly in the shape of needles or irregular blocks, and usually the conveying and crushing need to be completed in two steps, thus increasing the processing time and reducing the processing efficiency. Therefore, in view of the above problems, further improvements are made. Specifically, as Figures 11 to 14 shown:

[0088] The spraying assembly 200 further includes a crushing part 240, and the crushing part 240 is used for crushing fly ash;

[0089] The crushing part 240 includes a first gas soft bag 241, and the first gas soft bag 241 is a rubber bag body with a hollow interior;

[0090] A wind outlet pipe 120 is fixed to the top of the fan housing 100. The wind outlet pipe 120 is a square pipe. The first gas soft bag 241 is fixed to the inner wall of the wind outlet pipe 120 near the impeller 130. There are two first gas soft bags 241, and the two first gas soft bags 241 are parallel. A fiberglass cloth is fixed to the outside of each first gas soft bag 241. The fiberglass cloth is used to prevent fly ash from damaging the first gas soft bag 241, and the fiberglass cloth can adapt to the expansion and contraction of the first gas soft bag 241;

[0091] A branch pipe 222 is fixed to the ventilation pipe 220. An air pipe 2221 is fixed to the free end of the branch pipe 222. There are two air outlet ends on the air pipe 2221. One air outlet end of the air pipe 2221 extends into one first gas soft bag 241, and the connection between the air pipe 2221 and the first gas soft bag 241 is hermetically fixed, for each first gas soft bag 241;

[0092] A first crushing plate 2411 is fixed to each first gas soft bag 241 at a position away from the inner wall of the wind outlet pipe 120. A triangular first crushing block 2412 is fixed to each first crushing plate 2411.

[0093] It should be noted that the first crushing block 2412 is an isosceles triangular block. When air enters the ventilation pipe 220, the two first gas soft bags 241 are inflated through the branch pipe 222, so that the two first gas soft bags 241 expand rapidly and drive the two first crushing plates 2411 to collide with each other. When the two first crushing plates 2411 collide, the waist surface of the first crushing block 2412 on one first crushing plate 2411 fits with the waist surface of the first crushing block 2412 on the other first crushing plate 2411, preventing fly ash from being omitted and crushing the fly ash more comprehensively.

[0094] Specifically, as Figures 11 to 14 shown, the crushing part 240 further includes a second gas soft bag 242 and an air pipe 243;

[0095] The second gas soft bag 242 is a rubber bag body with a hollow interior, and it is fixed to the inner wall of the wind outlet pipe 120 away from the impeller 130. There are two second gas soft bags 242. One second gas soft bag 242 is parallel to one first gas soft bag 241. That is to say, the two second gas soft bags 242 are parallel, and the first gas soft bag 241 and the second gas soft bag 242 are arranged alternately. A fiberglass cloth is fixed to the outside of each second gas soft bag 242;

[0096] A breaker plate two 2421 is fixed to each of the gas soft bags two 242 away from the inner wall of the air outlet cylinder 120. A triangular breaker block two 2422 is fixed to each breaker plate two 2421. The breaker block one 2412 is an isosceles triangular block.

[0097] The intake end of the air pipe two 243 is connected to an air extraction pump, which is fixed to the bottom of the air outlet cylinder 120. There are two outlet ends of the air pipe two 243. One outlet end of the air pipe two 243 extends into one of the gas soft bags two 242, and the connection between the air pipe two 243 and the gas soft bag two 242 is hermetically fixed.

[0098] It should be noted that the breaker block two 2422 on the breaker plate two 2421 has the same structure as the breaker block one 2412 on the breaker plate one 2411 to avoid omission of fly ash. Air is introduced into the air pipe two 243 by the air extraction pump, causing the gas soft bag two 242 to expand rapidly and driving the two breaker plates two 2421 to collide. The air extraction pump extracts air from the air pipe two 243, causing the gas soft bag two 242 to contract and driving the two breaker plates two 2421 to move away from each other.

[0099] Specifically, as Figures 11 to 14 shown, when air is extracted from the two gas soft bags one 241 to cause the two breaker plates one 2411 to move away from each other, immediately afterwards, the two gas soft bags two 242 are inflated and expand rapidly, causing the two breaker plates two 2421 to move towards each other and collide.

[0100] It is easy to understand that the fly ash that continues to flow after the breaker plate one 2411 moves away is not broken. Through the alternating expansion and contraction of the gas soft bag one 241 and the gas soft bag two 242, when the breaker plate one 2411 separates, the breaker plates two 2421 collide with each other, further breaking the fly ash in the separation gap of the breaker plate one 2411 and improving the efficiency of fly ash crushing.

[0101] In the above embodiments, when air enters the air vent pipe 220, air enters the distribution pipe 221 and the branch pipes 222 simultaneously. The spraying part 210 sprays alumina powder. Air is supplied to the first air pipe 2221 through the branch pipe 222, causing the two first gas soft bags 241 to expand rapidly and driving the first crushing plates 2411 to collide with each other. The fly ash passing through the air outlet cylinder 120 is crushed by the first crushing blocks 2412. Then, the air in the air vent pipe 220 is pumped out by an air pump, sucking the alumina powder in the storage box 230 into the storage space of the spraying ball 211. At the same time, the first gas soft bag 241 contracts and drives the first crushing plates 2411 to separate. When the first gas soft bag 241 contracts, air is supplied to the second air pipe 243 by an air extraction pump, causing the second gas soft bag 242 to expand rapidly. When the first crushing plates 2411 separate, the second crushing plates 2421 collide with each other to crush the fly ash passing through the position of the first crushing plates 2411. By using the first gas soft bag 241 and the second gas soft bag 242 that expand and contract alternately, it is possible to comprehensively crush the fly ash during the transportation process of the fly ash, saving processing time for the next process and greatly improving the processing efficiency.

[0102] In some embodiments of the present application, it is found during actual use that although the above embodiments can shake off some of the fly ash on the blade 132, over a long period of time, the fly ash on the blade 132 still remains. Excessive accumulation of fly ash causes relatively large wear on the blade 132. Generally, it is necessary to manually disassemble the equipment to clean the fly ash on the blade 132. Since the time required for disassembly and assembly is long, it seriously affects the transportation efficiency of fly ash. Therefore, in view of the above problems, further improvements are made. Specifically, as Figures 15 to 18 shown:

[0103] The spraying assembly 200 further includes a cleaning part 250 for cleaning the fly ash adsorbed on the blade 132. The cleaning part 250 is located above the impeller 130, which means that when the impeller 130 rotates, it will not collide with the cleaning part 250;

[0104] The cleaning part 250 includes an air inlet pipe 254 fixed on the movable pipe 212 near the blade 132. The free end of the air inlet pipe 254 is fixed with an installation box 251. A valve is fixed on the air inlet pipe 254 for controlling when to supply air into the installation box 251. A switch valve is fixed on the movable pipe 212 near the spraying ball 211 for controlling the air intake volume of the spraying ball 211. When the switch valve on the movable pipe 212 is opened, the valve on the air inlet pipe 254 is in the closed state, and vice versa. Moreover, when the switch valve on the movable pipe 212 is closed, it does not affect the air entering the air inlet pipe 254;

[0105] The installation box 251 is a box body with a hollow interior. The free end of the air inlet pipe 254 extends into the installation box 251. An opening is formed at the bottom of the installation box 251, and a telescopic bladder 252 is fixed to its bottom. The telescopic bladder 252 is located above the impeller 130.

[0106] The telescopic bladder 252 is a strip-shaped rubber bladder with a hollow interior and an opening at one end close to the installation box 251. The opening of the telescopic bladder 252 coincides with the opening of the installation box 251, and the connection between the telescopic bladder 252 and the installation box 251 is hermetically fixed. That is to say, the gas in the installation box 251 can enter the telescopic bladder 252.

[0107] A cleaning bladder 253 is fixed to one side of the telescopic bladder 252 close to the blade 132 through a shunt pipe 2521. The telescopic bladder 252 is located in the middle of two blades 132, and the telescopic bladder 252 expands and stretches along the direction of the center of the impeller 130.

[0108] The cleaning bladder 253 is a rubber bladder with a hollow interior. There are two cleaning bladders 253. One cleaning bladder 253 is fixed to one side of the telescopic bladder 252, and the two cleaning bladders 253 are parallel.

[0109] One air guide pipe 2511 is fixed to each side of the installation box 251. The air guide pipe 2511 is communicated with the interior of the installation box 251. The free end of one air guide pipe 2511 is connected to a shunt pipe 2521. That is to say, when air enters the installation box 251, the shunt pipe 2521 can be ventilated through the air guide pipe 2511.

[0110] It should be noted that the surfaces of the telescopic bladder 252 and the cleaning bladder 253 are both fixed with split glass fiber cloth. In the initial state, fly ash is not likely to damage the telescopic bladder 252 and the cleaning bladder 253. The length of the cleaning bladder 253 is not greater than the length of the blade 132, with a difference in the range of 0.5 mm to 0.6 mm.

[0111] Specifically, as Figures 15 to 18 shown, a cleaning brush 2531 is fixed to each cleaning bladder 253 near the blade 132. The cleaning brush 2531 is a fine silica gel brush, which is not likely to hide dust and can well scrape off fly ash. The length of the cleaning brush 2531 is not greater than the length of the blade 132, with a difference in the range of 0.3 mm to 0.35 mm. That is to say, the cleaning brush 2531 can relatively comprehensively cover the cleaning surface of the blade 132, and the cleaning bladder 253 can drive the cleaning brush 2531 to abut against the side of the blade 132 in the long side direction after expansion.

[0112] There are eight cleaning parts 250. One cleaning part 250 is located between two blades 132, and one cleaning part 250 can clean one side of two blades 132, reducing the cleaning difficulty.

[0113] It should be noted that the hardness of the bladder of the telescopic bladder 252 is greater than that of the bladder of the cleaning bladder 253. That is to say, while the cleaning bladder 253 supports the cleaning brush 2531 to clean the surface of the blade 132, the telescopic bladder 252 can support the cleaning bladder 253 to ensure the smooth completion of the cleaning action.

[0114] In the above embodiment, after the fly ash is transported, the impeller 130 stops rotating and resets. Then, the opening and closing valve on the movable pipe 212 is closed, and the valve on the air inlet pipe 254 is opened. Air is introduced into the movable pipe 212 through the air pipe 220, so that the gas enters the installation box 251 from the air inlet pipe 254 and is introduced into the shunt pipe 2521 through the air guide pipe 2511, causing the telescopic bladder 252 to expand along the diameter of the impeller 130. At the same time, the cleaning bladder 253 expands and moves towards the cleaning surface of the blade 132, making the cleaning brush 2531 contact the surface of the blade 132. As the telescopic bladder 252 expands and stretches, the cleaning brush 2531 can move along the cleaning surface of the blade 132 to scrape off the fly ash on the cleaning surface of the blade 132. By repeatedly charging and exhausting air in the air pipe 220, the cleaning part 250 can perform repeated cleaning actions, which can clean a large amount of fly ash adsorbed on the surface of the blade 132. After the cleaning action is completed, exhausting air in the air pipe 220 drives the cleaning part 250 to reset, which can reduce the accumulation of dust on the blade 132, reduce the wear of the blade 132, and during the next transportation of fly ash, these fallen fly ashes can be transported out. It can realize the cleaning of the accumulated fly ash on the blade 132 without disassembling the equipment, reducing the difficulty of disassembling the equipment for cleaning, and thus improving the processing efficiency.

[0115] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, various changes and modifications can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A safe and efficient high-pressure fan, comprising a fan housing (100) and an impeller (130), wherein the impeller (130) is composed of two mounting plates (131) and a plurality of blades (132), characterized in that: Also included is a spray assembly (200); The spray assembly (200) comprises a spray portion (210) and a vent pipe (220); The spraying part (210) comprises a spraying ball (211), which is a sphere with a hollow interior and is movably connected in the fan housing (100), and the spraying ball (211) is filled with aluminum oxide powder; A plurality of nozzles are fixed on the side of the spray ball (211) away from the blades (132); one end of the vent pipe (220) extends into the spray ball (211); the remaining end of the vent pipe (220) is connected to an air pump; the vent pipe (220) is used to increase the pressure in the spray ball (211) so that the aluminum oxide powder is sprayed out from the nozzles; A driving device is installed at one end of the outside of the fan housing (100), and the driving device is used to drive the impeller (130) to rotate. When the impeller (130) rotates, the blades (132) can collide with the bottom of the spray ball (211), causing the spray ball (211) to swing.

2. The safe and efficient high-pressure blower according to claim 1, characterized in that: The spraying part (210) further comprises a movable tube (212), the movable tube (212) being movably connected in the fan housing (100), and the spraying ball (211) being fixed on the free end of the movable tube (212); The spray ball (211) and the movable tube (212) are internally connected, and one end of the ventilation tube (220) extends into the movable tube (212); A limit spring (213) is connected between the movable tube (212) and the fan housing (100); An elastic membrane (2111) is fixed inside the spray ball (211) near the free end of the movable tube (212). The inside of the spray ball (211) is divided into two spaces by the elastic membrane (2111), one space is an air intake space into which the free end of the movable tube (212) extends, and the other space is a material storage space.

3. The safe and efficient high-pressure blower according to claim 1, characterized in that: There are eight spraying parts (210), one spraying part (210) is located between two blades (132), the ventilation pipe (220) is an annular pipe and a plurality of distribution pipes (221) are fixed on the air outlet end thereof, and the free end of a distribution pipe (221) extends into a movable pipe (212).

4. The safe and efficient high-pressure blower according to claim 2, characterized in that: Eight material storage boxes (230) are fixed on the outside of the fan housing (100), the material storage boxes (230) are hollow rectangular bodies filled with aluminum oxide powder, and each material storage box (230) is fixed with a feed pipe (231); One end of a feed pipe (231) extends into a material storage box (230), and the other end of a feed pipe (231) extends into a material storage space of a spray ball (211).

5. The safe and efficient high-pressure blower according to claim 2, characterized in that: Each of the movable tubes (212) is inclined, and the free end of the movable tube (212) is inclined toward the blade (132). A striking ball (214) is fixed to each movable tube (212) near the fan housing (100) through a bracket; The striking ball (214) is a rubber sphere, and when the spraying ball (211) swings, it can drive the striking ball (214) to strike the inner wall of the fan housing (100).

6. The safe and efficient high-pressure blower according to claim 1, characterized in that: The spraying assembly (200) further includes a crushing portion (240); The crushing part (240) includes a gas soft bag (241), and the gas soft bag (241) is a rubber bag with a hollow interior; An air outlet cylinder (120) is fixed on the top of the fan housing (100), and the air outlet cylinder (120) is a square cylinder. A gas soft bag (241) is fixed on the inner wall of the air outlet cylinder (120) close to the impeller (130). There are two gas soft bags (241), and the two gas soft bags (241) are parallel. A branch pipe (222) is fixed on the ventilation pipe (220), a trachea 1 (2221) is fixed on the free end of the branch pipe (222), the trachea 1 (2221) has two air outlet ends, and one of the air outlet ends of the trachea 1 (2221) extends into a gas soft bag 1 (241); A crushing plate (2411) is fixed on each of the gas soft bags (241) at a position away from the inner wall of the air outlet tube (120), and a triangular crushing block (2412) is fixed on each crushing plate (2411).

7. The safe and efficient high-pressure blower according to claim 6, characterized in that: The crushing part (240) further includes a second gas soft bag (242) and a second air pipe (243); The second gas soft bag (242) is a rubber bag with a hollow interior and is fixed on the inner wall of the air outlet tube (120) away from the impeller (130). There are two second gas soft bags (242), one second gas soft bag (242) and one first gas soft bag (241) in parallel. A second crushing plate (2421) is fixed on each of the second gas soft bags (242) at a position away from the inner wall of the air outlet tube (120), and a second triangular crushing block (2422) is fixed on each second crushing plate (2421); The air inlet end of the second air pipe (243) is connected to the air pump, and the second air pipe (243) has two air outlet ends, one of which extends into a second air soft bag (242).

8. The safe and efficient high-pressure blower according to claim 7, characterized in that: When the two gas soft bags (241) are evacuated and contracted, causing the two crushing plates (2411) to move away from each other, the two gas soft bags (242) are inflated and expanded rapidly, causing the two crushing plates (2421) to move toward each other.

9. The safe and efficient high-pressure blower according to claim 1, characterized in that: The spray assembly (200) further comprises a cleaning portion (250), wherein the cleaning portion (250) is located above the impeller (130); The cleaning part (250) comprises an air inlet pipe (254), the air inlet pipe (254) is fixed on the movable pipe (212) near the blade (132), a mounting box (251) is fixed to the free end of the air inlet pipe (254), a valve is fixed on the air inlet pipe (254), and an opening and closing valve is fixed on the movable pipe (212) near the spray ball (211); The installation box (251) is a box body with a hollow interior, and the free end of the air inlet pipe (254) extends into the installation box (251). The bottom of the installation box (251) is provided with an opening, and a telescopic bag (252) is fixed to the bottom of the installation box, and the telescopic bag (252) is located above the impeller (130); The telescopic bag (252) is a strip-shaped rubber bag body which is hollow inside and has an opening at one end close to the installation box (251), and the opening of the telescopic bag (252) coincides with the opening of the installation box (251); A cleaning bag (253) is fixed to a side of the telescopic bag (252) close to the blade (132) via a shunt pipe (2521); The cleaning capsule (253) is a rubber capsule with a hollow interior. There are two cleaning capsules (253), and the two cleaning capsules (253) are parallel. An air guide tube (2511) is fixed to each of the two sides of the installation box (251), and a free end of an air guide tube (2511) is connected to a diversion tube (2521).

10. The safe and efficient high-pressure blower according to claim 9, characterized in that: A cleaning brush (2531) is fixed on each cleaning capsule (253) near the blade (132); the length of the cleaning brush (2531) is no greater than the length of the blade (132); after the cleaning capsule (253) is expanded, it can drive the cleaning brush (2531) to contact the side surface of the blade (132) in the long side direction; There are eight cleaning portions (250), and one cleaning portion (250) is located between two blades (132).

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