A dust purification device

Abstract

The present invention relates to the technical field of purification equipment, and discloses a dust purification equipment, including an air inlet pipe; a soaking device, including a spray pipe, wherein a plurality of first spray heads are arranged in the spray pipe, and an air guide plate movably extended into the spray pipe, wherein an angle less than 90° is formed between the air guide plate and the spray pipe; a purification device, including a purification pipe, an air inlet, an air outlet and a slag outlet, wherein the air outlet is connected to an exhaust fan, and a group of guide blades are arranged in the purification pipe, wherein the guide blade group has a plurality of guide blades arranged obliquely and having bent edges; when the exhaust fan is started, the gas in the air inlet pipe enters the purification pipe along the spray pipe and performs a spiral upward movement, and the dust and water in the gas are separated from the gas and fall into the slag outlet, and the clean gas after separation continues to spirally rise along the length direction of the purification pipe and is discharged from the air outlet. The dust purification equipment provided by the present invention has high dust purification efficiency and low energy consumption.

Description

Technical Field

[0001] The invention belongs to the technical field of purification equipment, and in particular relates to dust purification equipment. Background Art

[0002] With the acceleration of industrialization, the problem of air pollution is becoming increasingly serious, especially the dust pollution caused by industrial emissions. Dust not only affects air quality, but also harms human health. Therefore, it is very important to effectively purify the dust-containing gas discharged by industry. Although the traditional cyclone dust collector has a simple structure, it is only suitable for the removal of larger particles of dust. It is not effective in removing fine particles and has low dust removal efficiency. In response to this, the prior art has introduced a wet cyclone dust collector, which realizes the formation of a vortex by setting a plurality of rotatable impellers and uses centrifugal force to separate the dust and water in the gas. This equipment improves the dust removal effect and efficiency to a certain extent, but due to its complex structure, it leads to high production costs. Moreover, since the motor driving the impeller to rotate is always in the channel containing dust particles and water flow, this not only reduces the reliability and service life of the equipment, but also increases the maintenance cost of the equipment. Summary of the invention

[0003] The purpose of the present invention is to provide a dust purification device with a simple structure, which can effectively improve the dust removal rate and reduce energy consumption in view of the above problems existing in the prior art.

[0004] The purpose of the present invention can be achieved through the following technical solutions: a dust purification device, comprising:

[0005] An air inlet pipe for receiving dust-laden gas;

[0006] A wetting device, wherein the wetting device comprises a spray pipe, one end of the spray pipe is connected to the air inlet pipe, and the other end is connected to the purification device, wherein the spray pipe is provided with a plurality of first spray heads at one end close to the air inlet pipe, and the other end is provided with an air guide plate movably extending into the spray pipe; the first spray heads spray water to the gas entering the spray pipe to mix the dust in the gas with the water, and an angle of less than 90° is formed between the air guide plate and the spray pipe to guide the mixed gas;

[0007] The purification device includes a vertically arranged purification duct, the purification duct includes an air inlet connected to the spray duct, and an air outlet and a slag outlet arranged relatively, the air outlet is connected to an exhaust fan, and at least one group of guide blade groups is provided in the purification duct near the air outlet, the guide blade group has a plurality of obliquely arranged guide blades, and the guide blades have bent edges for guiding the gas to make a spiral upward motion, and making the diameter of the gas making a spiral upward motion close to the air outlet smaller than the diameter close to the air inlet end; when the exhaust fan is started, the gas in the air inlet pipe enters the purification duct along the spray duct and makes a spiral upward motion, wherein the dust and water in the gas are separated from the gas under the action of centrifugal force and gravity, and fall into the slag outlet, and the clean gas after separation continues to spirally rise along the length direction of the purification duct and is discharged from the air outlet.

[0008] In the above-mentioned dust purification equipment, the guide blade is inclined toward the upper right of the horizontal line, and each guide blade is provided with two groups of bent edges with opposite bending directions, wherein a group of bent edges close to the air outlet is bent away from the inclination direction of the guide blade.

[0009] In the above-mentioned dust purification equipment, the guide blade group includes an impeller coaxial with the purification pipe, the impeller includes a wind shield portion horizontally arranged on the axis of the purification pipe, and a fixed portion that is fitted and connected to the inner wall of the purification pipe and forms an annular gap with the wind shield portion, the guide blades are fixed in the annular gap, are respectively connected to the wind shield portion and the fixed portion, and cooperate with the impeller to form an oblique channel for gas to pass through.

[0010] In the above-mentioned dust purification equipment, the air outlet is coaxial with the purification pipe, and the diameter of the air outlet is smaller than the diameter of the purification pipe, wherein the purification pipe is provided with a connecting pipe connected to the air outlet, and the exhaust fan is connected to one end of the connecting pipe away from the air outlet.

[0011] In the above-mentioned dust purification equipment, the angle between the air guide plate and the spray pipe is 30°~60°, and the gas passing through the air guide plate enters the purification pipe along the tangent direction of the purification pipe.

[0012] In the above-mentioned dust purification equipment, an inclined limiting groove is provided in the spray pipe, the air guide plate is movably embedded in the limiting groove, and forms a guide channel for gas and water to pass through with the inner wall of the spray pipe, and when the air guide plate moves along the length direction of the limiting groove, the size of the opening of the guide channel can be adjusted.

[0013] In the above-mentioned dust purification equipment, several first spray heads are arranged along the circumference of the spray pipe, wherein the water outlet end of each first spray head is provided with a spiral portion, and when the water in the first spray head flows through the spiral portion, it is sprayed in a dispersed state, and when several first spray heads are opened synchronously, a water curtain adapted to the inner diameter of the spray pipe can be formed.

[0014] In the above-mentioned dust purification equipment, a plurality of second spray heads are further arranged in the spray pipe, the second spray heads are located between the air guide plate and the first spray head, and the water outlet end of each second spray head is provided with a spiral portion for secondary spraying of the gas after passing through the first spray head.

[0015] In the above-mentioned dust purification equipment, it also includes a slag discharge device, which includes a sedimentation tank connected to the slag outlet, and the sedimentation tank includes a plurality of sedimentation areas connected and communicated in sequence, and the last sedimentation area is connected to the first spray head and the second spray head through a water pump and a main water pipe to supply water to the first spray head and the second spray head.

[0016] In the above-mentioned dust purification equipment, the purification pipe has a funnel-shaped confluence portion at one end close to the slag outlet, and the slag outlet is located at the center of the confluence portion, wherein the confluence portion is provided with a diversion portion away from the slag outlet, and the diversion portion is conical in shape, which is connected to the confluence portion through a support column, and a flow channel for dust and water to pass through is provided between the diversion portion and the confluence portion.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: by arranging an air guide plate in the spray pipe and a guide blade group in the purification pipe, the guide blade group has guide blades arranged in an inclined manner, and the two ends of the guide blades have bent edges facing opposite directions, so that the gas guided by the guide blade group makes a spiral upward motion and rotates and rises in an inverted funnel shape, that is, the diameter of the gas making a spiral upward motion close to the air outlet is smaller than the diameter close to the air inlet. On the one hand, this design helps to reduce the resistance loss of the gas in the purification pipe, thereby reducing the energy consumption required to drive the exhaust fan, and on the other hand, it helps to increase the centrifugal force, so that solid particles are more easily separated from the airflow and settled to the bottom of the purification pipe, and the exhaust fan is arranged at the air outlet to cooperate with the guide blade group and the air guide plate in a way of sucking gas, so that the gas makes a spiral upward motion, thereby realizing efficient separation of dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure is a schematic structural diagram of a dust purification device according to an embodiment of the present invention.

[0019] Figure 2This is an exploded view of a dust purification device according to an embodiment of the present invention.

[0020] Figure 3 It is a cross-sectional view of a sedimentation tank in an embodiment of the present invention.

[0021] Figure 4 It is a cross-sectional view of a purification device in an embodiment of the present invention.

[0022] Figure 5 Schematic diagram of the structure of the soaking device in the embodiment of the present invention.

[0023] Figure 6 for Figure 5 Schematic diagram of the structure from another perspective.

[0024] Figure 7 for Figure 6 Section at AA.

[0025] Figure 8 for Figure 6 Cross section at middle BB.

[0026] Fig. 9 Schematic diagram of the structure of the guide blade group in an embodiment of the present invention.

[0027] In all the drawings, the same reference numerals represent the same technical features, specifically: 100, soaking device; 110, spray pipe; 111, first spray pipe; 112, second spray pipe; 120, first spray head; 121, spiral portion; 130, second spray head; 131, baffle; 140, air guide plate; 150, first water supply pipe; 160, second water supply pipe; 170, limiting groove; 180, first limiting member; 181, first groove; 190, second limiting member; 191, second groove; 20 0. Purification device; 210. Purification pipeline; 211. Air inlet; 212. Air outlet; 213. Slag outlet; 214. Confluence; 215. Diversion; 216. Support column; 220. Guide blade group; 221. Guide blade; 222. Bending edge; 223. Wind shield; 224. Fixing part; 230. Connecting pipe; 300. Slag discharge device; 310. Sedimentation tank; 311. First sedimentation tank; 312. Second sedimentation tank; 313. Third sedimentation tank; 320. Main water pipe; 330. Water pump. DETAILED DESCRIPTION

[0028] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0029] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] like Figures 1 to 9 As shown, a dust purification device includes an air intake pipe (not shown in the figure), a soaking device 100, a purification device 200 and a slag discharge device 300.

[0031] like Figures 1 to 9 As shown, a dust purification device comprises:

[0032] An air inlet pipe for receiving dust-laden gas;

[0033] The wetting device 100 comprises a spray pipe 110, one end of which is connected to the air inlet pipe, and the other end of which is connected to the purification device 200, wherein the spray pipe 110 is provided with a plurality of first spray heads 120 at one end close to the air inlet pipe, and the other end of which is provided with an air guide plate 140 movably extending into the spray pipe 110; the first spray heads 120 spray water to the gas entering the spray pipe 110, so that the dust in the gas is mixed with the water, and the air guide plate 140 and the spray pipe 110 have an angle less than 90° between them, so as to guide the mixed gas;

[0034] The purification device 200 includes a vertically arranged purification pipeline 210, the purification pipeline 210 includes an air inlet 211 connected to the spray pipeline 110, and an air outlet 212 and a slag outlet 213 arranged opposite to each other. The air outlet 212 is connected to an exhaust fan (not shown in the figure), and at least one group of guide blades 220 is arranged near the air outlet 212 in the purification pipeline 210. The guide blade group 220 has a plurality of guide blades 221 arranged obliquely, and the guide blades 221 have a bent edge 222 for The gas is guided to make a spiral upward motion, and the diameter of the gas making a spiral upward motion near the air outlet 212 is made smaller than the diameter near the air inlet 211; when the exhaust fan is started, the gas in the air inlet pipe enters the purification pipe 210 along the spray pipe 110 and makes a spiral upward motion, wherein the dust and water in the gas are separated from the gas under the action of centrifugal force and gravity, and fall into the slag outlet 213, and the clean gas after separation continues to spirally rise along the length direction of the purification pipe 210, and is discharged from the air outlet 212.

[0035] By setting the air guide plate 140 in the spray pipe 110, the mixed gas is initially guided, and further, the guide blade group 220 is set in the purification pipe 210, and the guide blade 221 arranged in an inclined manner has a bent edge 222, so that the gas guided by the guide blade group 220 performs a spiral upward motion, and the gas is rotated and ascended in an inverted funnel shape, that is, the diameter of the gas performing the spiral upward motion near the air outlet 212 is smaller than the diameter near the air inlet 211. The reduction in the diameter of the gas near the air outlet 212, on the one hand, helps to reduce the resistance loss of the gas in the purification pipe 210, thereby reducing the energy consumption required to drive the exhaust fan, and on the other hand, helps to increase the centrifugal force, so that the solid particles are more easily separated from the air flow and settled to the bottom of the purification pipe 210, and the exhaust fan is arranged at the air outlet 212 to form a match with the guide blade group 220 and the air guide plate 140 in a way of sucking gas, so that the gas performs a spiral upward motion, and realizes efficient separation of dust.

[0036] Specifically, if Figure 1 , Figure 2 , Figures 5 to 8 As shown, in this embodiment, the air inlet pipe is vertically arranged above the immersion device 100, one end of which is connected to the factory working space, and the other end is connected to the spray pipe 110, for receiving dust-containing gas and guiding the dust-containing gas into the immersion device 100.

[0037] In this embodiment, the wetting device 100 includes an L-shaped spray pipe 110, one end of which is connected to the air inlet pipe, and the other end is connected to the purification device 200. It is used to spray water on the dust-containing gas to mix the dust in the gas with water, thereby forming particulate matter that is easy to separate, thereby effectively improving the convenience of dust purification.

[0038] In this embodiment, the wetting device 100 also includes a plurality of first spray heads 120 arranged at one end of the spray pipe 110 near the air inlet pipe, and an air guide plate 140 movably extended into the spray pipe 110, the first spray head 120 sprays water on the gas entering the spray pipe 110, so that the dust in the gas is mixed with water and forms particulate matter, so that the dust can be separated from the gas under the action of centrifugal force; the air guide plate 140 is inclined and has an angle less than 90° with the spray pipe 110, which is used to guide the mixed gas, so that the gas can enter the purification pipe 210 in an inclined state along the tangent direction of the purification pipe 210, thereby avoiding the gas from entering the purification pipe 210 in a divergent state, so that after the exhaust fan is started, the gas can better form a vortex shape, effectively ensuring the purification effect of the gas.

[0039] In this embodiment, the spray pipe 110 includes a first spray pipe 111 and a second spray pipe 112 which are interconnected. The first spray pipe 111 is connected to the air inlet pipe and arranged vertically. The second spray pipe 112 is arranged horizontally, one end of which is vertically connected to the first spray pipe 111, and the other end is connected to the purification pipe 210. Through the cooperation of the first spray pipe 111 and the second spray pipe 112, the mixed gas and water can flow smoothly into the purification pipe 210 under the action of gravity.

[0040] In this embodiment, the first spray head 120 is arranged in the first spray pipe 111 and arranged along the circumference of the first spray pipe 111, and the water outlet end of each first spray head 120 is provided with a spiral portion 121. When the water flow in the first spray head 120 passes through the spiral portion 121, it is sprayed in a fan-shaped dispersion, and when several first spray heads 120 are opened synchronously, a circular water curtain adapted to the inner diameter of the first spray pipe 111 can be formed. Preferably, in this embodiment, the first spray head 120 is provided with four groups, which are equidistantly distributed along the circumference of the first spray pipe 111. The uniformity and coverage area of ​​the water mist distribution are effectively improved, thereby increasing the contact area between dust and water and enhancing the subsequent purification effect.

[0041] Preferably, in this embodiment, the soaking device 100 includes a first water supply pipe 150 surrounding the outer wall of the first spray pipe 111 , and the first water supply pipe 150 is connected to each first spray head 120 to provide water to the first spray head 120 .

[0042] In this embodiment, the soaking device 100 further includes a plurality of second spray heads 130 disposed in the second spray pipe 112, the second spray heads 130 being located between the air guide plate 140 and the first spray head 120, and each second spray head 130 having a spiral portion 121 disposed at a water outlet end thereof for performing a second spray on the gas after passing through the first spray head 120. The mixing degree of dust and water is further improved, thereby further improving the purification effect.

[0043] In this embodiment, a plurality of second spray heads 130 can be arranged in a ring along the axis of the second spray pipe 112, or can be arranged vertically along the axis perpendicular to the second spray pipe 112. In order to simplify the overall structure of the equipment, a plurality of second spray heads 130 are arranged in a line, vertically along the axis perpendicular to the second spray pipe 112, and arranged away from the direction of the first spray pipe 111 to avoid reverse impact on the gas flowing into the purification pipe 210, thereby effectively ensuring the stability and smoothness of the gas flow.

[0044] In this embodiment, the immersion device 100 also includes a second water supply pipe 160 that extends vertically into the second spray pipe 112 and is respectively connected to a plurality of second spray heads 130. By cooperating with the vertically arranged second spray heads 130, the structure of the immersion device 100 is effectively simplified.

[0045] Preferably, in this embodiment, a baffle 131 is further provided on the side of the plurality of second spray heads 130 facing the purification pipe 210. When the plurality of second spray heads 130 are turned on, the water flow sprayed from the spiral portion 121 impacts the baffle 131, and spreads to both sides under the action of the baffle 131 to form a rectangular water curtain adapted to the inner diameter of the second spray pipe 112. The uniformity and coverage of the water mist distribution are effectively improved, thereby increasing the contact area between dust and water.

[0046] In order to realize the recycling of water resources, in this embodiment, a main water pipe 320 is further included, one end of which is connected to the first water supply pipe 150 and the second water supply pipe 160, and the other end is connected to the slag discharge device 300, and a water pump 330 is driven by the main water pipe 320 to pump water in the slag discharge device 300 into the first water supply pipe 150 and the second water supply pipe 160. The water precipitated by the slag discharge device 300 can be reused, effectively avoiding the waste of water resources.

[0047] In this embodiment, the air guide plate 140 is movably disposed in the second spray pipe 112, and the angle between the air guide plate 140 and the spray pipe 110 is 30° to 60°, so as to squeeze and guide the gas passing through the air guide plate 140, so that the gas passing through the air guide plate 140 enters the purification pipe 210 along the tangential direction of the purification pipe 210, thereby making the gas in the purification pipe 210 perform spiral motion, which is conducive to forming an effective spiral ascending motion, and ensuring the separation efficiency of dust and water during gas purification. Preferably, the angle is 35°.

[0048] In this embodiment, the second spray pipe 112 is provided with an inclined limiting groove 170, the air guide plate 140 is movably embedded in the limiting groove 170, and forms a guide channel for gas and water to pass through with the inner wall of the second spray pipe 112, and the air guide plate 140 can adjust the size of the opening of the guide channel when it moves along the length direction of the limiting groove 170. The size of the opening of the guide channel allows the user to adjust the flow speed of gas and water as needed, thereby improving the flexibility and adaptability of the device.

[0049] To prevent the air guide plate 140 from shifting up and down or left and right during movement, in the present embodiment, a first limit member 180 and a second limit member 190 are provided in an upper and lower structure and are clamped in the second spray pipe 112. The first limit member 180 and the second limit member 190 are arranged relative to each other, and the first limit member 180 is provided with a first groove 181 extending in the moving direction of the air guide plate 140 on the side facing the air guide plate 140, and the second limit member 190 is provided with a second groove 191 extending in the moving direction of the air guide plate 140 on the side facing the air guide plate 140. The first groove 181 and the second groove 191 cooperate to form the limit groove 170, and the first groove 181 and the second groove 191 are respectively movably connected to the air guide plate 140, and limit the up and down movement and left and right movement of the air guide plate 140, thereby effectively ensuring the stability of the movement of the air guide plate 140.

[0050] like Figures 1 to 4 , Fig. 9 As shown, in this embodiment, the purification pipe 210 is cylindrical and extends away from the ground to provide space for the gas to make a spiral upward movement. It includes an air inlet 211 arranged at the side near the bottom end, an air outlet 212 arranged at the top, and a slag outlet 213 arranged at the bottom end; wherein, the air inlet 211 is rectangular, and extends circumferentially along the purification pipe 210 from the tangent position of the purification pipe 210, and is connected with the second spray pipe 112, so that the dust-containing gas that has been soaked can flow smoothly into the purification pipe 210.

[0051] In this embodiment, the air outlet 212 is coaxial with the purification pipe 210, and the diameter of the air outlet 212 is smaller than the diameter of the purification pipe 210. This design can force the gas to accelerate when passing through the air outlet 212, thereby increasing the flow rate of the gas and improving the overall efficiency of the equipment.

[0052] In this embodiment, the purification duct 210 is provided with a connecting pipe 230 extending in a horizontal direction and connected to the air outlet 212, and the exhaust fan is connected to the end of the connecting pipe 230 away from the air outlet 212, wherein the length of the connecting pipe 230 can be set as needed, thereby effectively improving the convenience of equipment installation.

[0053] In this embodiment, the slag outlet 213 is coaxially arranged with the purification pipeline 210, and the purification pipeline 210 has a funnel-shaped confluence portion 214 at one end close to the slag outlet 213, and the slag outlet 213 is located at the center of the confluence portion 214, wherein the confluence portion 214 is provided with a diverter portion 215 in the direction away from the slag outlet 213, and the diverter portion 215 is conical, and is connected to the confluence portion 214 through a support column 216, and a flow channel for dust and water to pass through is provided between the diverter portion 215 and the confluence portion 214. This design enables the dust and water separated by centrifugal force to fall on the diverter portion 215 first when falling under the action of gravity, and then fall from the diverter portion 215 to the confluence portion 214, and converge to flow to the slag outlet 213 through the confluence portion 214. On the one hand, a portion of the dust will remain on the upper surface of the diversion portion 215, thereby preventing excessive dust from rapidly flowing to the slag outlet 213 and causing blockage. On the other hand, the buffering and diversion of the diversion portion 215 slows down the speed at which dust and water directly flow to the slag outlet 213, further preventing the slag outlet 213 from being blocked.

[0054] Preferably, in this embodiment, the diameter of the diverter portion 215 at one end close to the confluence portion 214 is larger than the diameter at the end away from the confluence portion 214, and a plurality of support columns 216 are provided, which are arranged equidistantly along the circumference of the diverter portion 215, so that the water flow falling on the diverter portion 215 can be dispersed from multiple directions and flow toward the confluence portion 214.

[0055] In order to purify the gas, in this embodiment, the purification device 200 includes at least one group of guide blades 220 arranged in the purification pipe 210 near one end of the air outlet 212, and the guide blade group 220 has a plurality of guide blades 221 arranged circumferentially along the axis of the purification pipe 210 and arranged obliquely, which are used to guide the gas to make a spiral upward movement, and the guide blade 221 has a bent edge 222, which is used to change the shape of the gas when it makes a spiral upward movement, so that the gas rotates and rises in an inverted funnel shape; because the diameter of the inverted funnel-shaped airflow decreases at a position close to the air outlet 212, the centrifugal force of the airflow in this area is relatively increased, which helps to more effectively separate dust from the gas. At the same time, a smaller diameter means that the airflow needs to overcome less resistance, so that the pressure required to be provided by the exhaust fan can be reduced accordingly, thereby reducing the driving energy consumption. In addition, because the diameter of the gas close to the air outlet 212 is reduced, the rotation speed of the airflow in this area is relatively high, which helps to remove fine particles more thoroughly. And the smaller diameter helps to improve the stability of the airflow, reduce turbulence, and further improve the separation efficiency.

[0056] In this embodiment, the guide blade 221 is inclined toward the upper right of the horizontal line, and each guide blade 221 is provided with two sets of bent edges 222 with opposite bending directions, wherein a set of bent edges 222 close to the air outlet 212 is bent in a direction away from the inclination of the guide blade 221. Such a design makes the gas move toward the center of the purification duct 210 when approaching the air outlet 212, so that the diameter of the spiral path gradually decreases. When the diameter of the spiral path decreases, if the linear velocity and mass of the gas remain unchanged, according to the calculation formula of the centrifugal force, the centrifugal force will increase, and the larger centrifugal force helps to separate more dust particles from the airflow, thereby improving the separation efficiency.

[0057] In this embodiment, the guide blade group 220 includes an impeller coaxial with the purification pipe 210, and the impeller includes a circular windshield 223 horizontally arranged on the axis of the purification pipe 210, and a fixed part 224 that is closely connected to the inner wall of the purification pipe 210 and forms an annular gap with the windshield 223. A plurality of guide blades 221 are fixed in the annular gap, respectively connected to the windshield 223 and the fixed part 224, and cooperate with the impeller to form an oblique channel for gas to pass through. Through the synergistic effect of the guide blade 221 and the impeller, the gas can be effectively promoted to form a spiral upward movement path, improve the separation efficiency of dust and gas, reduce energy consumption, simplify maintenance, and thus improve the overall performance of the dust purification equipment.

[0058] like Figures 1 to 3 As shown, in order to realize the recycling of water resources, in this embodiment, a slag discharge device 300 is also included, and the slag discharge device 300 includes a sedimentation tank 310 connected to the slag outlet 213. The sedimentation tank 310 includes a plurality of sedimentation areas connected and communicated in sequence, and the last sedimentation area is connected to the first spray head 120 and the second spray head 130 through a water pump 330 and a main water pipe 320 to supply water to the first spray head 120 and the second spray head 130. On the one hand, through the filtration of the sedimentation tank 310, water and dust can be separated and reused, which effectively reduces water consumption, realizes the recycling of water resources, and reduces costs; on the other hand, through the design of multiple sedimentation areas, multi-stage filtration is achieved, which effectively ensures the purity of the reused water resources, thereby ensuring the purification efficiency of the gas.

[0059] Preferably, in this embodiment, the sedimentation tank 310 includes a first sedimentation tank 311, a second sedimentation tank 312 and a third sedimentation tank 313 which are arranged in a U-shape and connected in sequence. The first sedimentation tank 311 is connected to the second sedimentation tank 312, and the second sedimentation tank 312 is connected to the third sedimentation tank 313 to form multiple sedimentation areas to achieve multi-stage filtration.

[0060] In this embodiment, the third sedimentation tank 313 is located below the spray pipe 110, the second sedimentation tank 312 is located below the purification pipe 210, and the first sedimentation tank 311 and the third sedimentation tank 313 are arranged opposite to each other. This structural design not only makes the overall structure of the equipment more compact, but also simplifies the layout length of the main water pipe 320.

[0061] It should be noted that in the present invention, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. The terms "connected", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0062] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0063] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A dust purification device, characterized in that: include: An air inlet pipe for receiving dust-laden gas; A wetting device, wherein the wetting device comprises a spray pipe, one end of the spray pipe is connected to the air inlet pipe, and the other end is connected to the purification device, wherein the spray pipe is provided with a plurality of first spray heads at one end close to the air inlet pipe, and the other end is provided with an air guide plate movably extending into the spray pipe; the first spray heads spray water to the gas entering the spray pipe to mix the dust in the gas with the water, and an angle of less than 90° is formed between the air guide plate and the spray pipe to guide the mixed gas; The purification device comprises a vertically arranged purification duct, the purification duct comprises an air inlet connected to the spray duct, and an air outlet and a slag outlet arranged oppositely, the air outlet is connected to an exhaust fan, and at least one group of guide blade groups is provided in the purification duct near the air outlet, the guide blade group has a plurality of guide blades arranged obliquely, and the guide blades have bent edges for guiding the gas to make a spiral upward motion, and making the diameter of the gas making a spiral upward motion close to the air outlet smaller than the diameter close to the air inlet; when the exhaust fan is started, the gas in the air inlet pipe enters the purification duct along the spray duct and makes a spiral upward motion, wherein the dust and water in the gas are separated from the gas under the action of centrifugal force and gravity, and fall into the slag outlet, and the clean gas after separation continues to spirally rise along the length direction of the purification duct and is discharged from the air outlet; The guide blades are inclined toward the upper right of the horizontal line, and each of the guide blades is provided with two sets of bent edges with opposite bending directions, wherein a set of bent edges close to the air outlet is bent in a direction away from the inclination direction of the guide blade; The guide blade group includes an impeller coaxial with the purification pipe, the impeller includes a windshield portion horizontally arranged on the axis of the purification pipe, and a fixing portion that is fitted and connected to the inner wall of the purification pipe and forms an annular gap with the windshield portion, the guide blades are fixed in the annular gap, are respectively connected to the windshield portion and the fixing portion, and cooperate with the impeller to form an oblique channel for gas to pass through.

2. A dust purification device according to claim 1, characterized in that: The air outlet is coaxial with the purification duct, and the diameter of the air outlet is smaller than the diameter of the purification duct, wherein the purification duct is provided with a connecting pipe connected to the air outlet, and the exhaust fan is connected to one end of the connecting pipe away from the air outlet.

3. A dust purification device according to claim 1, characterized in that: The angle between the air guide plate and the spray pipe is 30° to 60°, and the gas passing through the air guide plate enters the purification pipe along the tangent direction of the purification pipe.

4. A dust purification device according to claim 3, characterized in that: An inclined limiting groove is provided in the spray pipe, and the air guide plate is movably embedded in the limiting groove to form a guide channel for gas and water to pass through with the inner wall of the spray pipe, and when the air guide plate moves along the length direction of the limiting groove, the size of the opening of the guide channel can be adjusted.

5. The dust purification equipment according to claim 1, characterized in that: A plurality of the first spray heads are arranged along the circumference of the spray pipe, wherein a spiral portion is provided at the water outlet end of each of the first spray heads. When the water in the first spray head flows through the spiral portion, it is sprayed in a dispersed manner. When a plurality of the first spray heads are opened synchronously, a water curtain adapted to the inner diameter of the spray pipe can be formed.

6. A dust purification device according to claim 5, characterized in that: A plurality of second spray heads are also arranged in the spray pipe, and the second spray heads are located between the air guide plate and the first spray head, and a spiral portion is provided at the water outlet end of each second spray head for secondary spraying of the gas after passing through the first spray head.

7. A dust purification device according to claim 6, characterized in that: It also includes a slag discharge device, which includes a sedimentation tank connected to the slag outlet, and the sedimentation tank includes a plurality of sedimentation areas that are connected and communicated in sequence, and the last sedimentation area is connected to the first spray head and the second spray head through a water pump and a main water pipe to supply water to the first spray head and the second spray head.

8. The dust purification equipment according to claim 1, characterized in that: The purification pipe has a funnel-shaped confluence portion at one end close to the slag outlet, and the slag outlet is located at the center of the confluence portion, wherein the confluence portion is provided with a diversion portion away from the slag outlet, the diversion portion is conical in shape, and is connected to the confluence portion through a support column, and a flow channel for dust and water to pass through is provided between the diversion portion and the confluence portion.

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