Wet-process vortex dust removal fan
Through the design of the wet vortex dust collector fan, the combination of water mist and disturbing power is used to solve the problem of poor treatment effect of existing dust collector fans at high temperatures and wet-containing materials, and the thorough removal of fine particles and the maintenance of ventilation is achieved. It reduces maintenance and equipment costs, has wide applicability, and ensures air purification effect and personnel health and safety.
Patent Information
- Application Number
- CN202311059785.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-08-22
- Publication Date
- 2024-12-13
AI Technical Summary
The existing dust collectors have poor results when dealing with high-temperature gases and wet-containing materials, poor removal of fine particles, attenuated ventilation, high maintenance costs, large equipment size and expensive construction, narrow applicability, affecting the health and safety of the environment and personnel.
A wet vortex dust collector was designed to spray water mist through the nozzle and mix with polluted air. The motor-driven air impeller and diversion blades formed violent disturbances, combined with centrifugal force to settle pollutants, achieving more thorough particle capture and Purification.
It has achieved complete removal of PM2.5/PM10 particulate matter, maintained stable ventilation, lifelong maintenance-free, small and efficient equipment, wide applicability, purified air-harmless particulate matter, and can be directly discharged into the factory without reducing the temperature and reducing the environment. and health risks.
Smart Images
Figure CN119122825A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of environmental protection, and more specifically to a wet vortex dust removal fan. Background Art
[0002] Dust removal fan is a widely used industrial equipment, mainly used to remove dust and other pollutants in the air to keep the air clean. For example, in the mining, metallurgy, building materials, chemical industry and other industries, a large amount of dust and pollutants will be generated during the production process. If not cleaned up in time, it will cause great harm to the environment and the health of workers. Therefore, dust removal fans can effectively purify the air, improve environmental quality, and bring people a safe and comfortable living environment.
[0003] The dust removal fans in the prior art generally remove dust and pollutants by suction, filtration, purification, etc. However, these existing dust removal fans have the following problems:
[0004] 1. The applicability is relatively narrow. It is not applicable to high-temperature gases above 200°C and sticky and wet materials;
[0005] 2. The treatment is not thorough, and the removal effect of fine particles (PM2.5 / PM10) is very poor;
[0006] 3. Although the official environmental protection data is qualified, it still poses a huge threat to personnel health and safety;
[0007] 4. The ventilation volume decreases, and consumables need to be replaced regularly;
[0008] 5. The cost of harmless treatment of consumables is high and the technology is difficult;
[0009] 6. The equipment is bulky;
[0010] 7. High cost of construction and maintenance.
[0011] Therefore, it is necessary for those skilled in the art to design a dust removal fan with a new structure to solve the above-mentioned prior art problems. Summary of the invention
[0012] In view of this, the present invention proposes a wet vortex dust removal fan, and its specific technical solution is as follows:
[0013] A wet vortex dust removal fan, comprising a dust removal fan main body and a sedimentation tank, wherein the sedimentation tank is fixed to the bottom of the dust removal fan main body by supporting legs; the dust removal fan main body comprises a fan front cover, a fan casing, and a fan dewatering barrel, and the fan front cover, the fan casing and the fan dewatering barrel are connected in sequence from front to back according to the flow path of dust; the bottoms of the fan casing and the fan dewatering barrel are axially provided with dust exhaust passages facing the sedimentation tank below; a circular fan front cover opening is fixed at the front end opening of the fan front cover, and an annular first nozzle is fixed in the fan front cover opening, and a plurality of first nozzles with openings facing backward and inward are circumferentially connected on the first nozzle; a cylindrical motor shield shell is fixedly installed in the fan casing, and the motor shield outer Guide vanes are installed on the outer peripheral wall of the shell, a motor is fixedly installed inside the motor shield shell, the motor shaft at the front end of the motor is connected to the impeller, and the impeller is located directly behind the first nozzle; a ring-shaped second nozzle is fixed on the outer surface of the rear end of the motor shield shell, and a plurality of second nozzles with openings facing forward and outward are circumferentially connected to the second nozzle; a guide grid connected to the fan shell is provided inside the fan dehydration barrel, and the guide grid is a straight cone cylinder with a conical axial section, and the rear end of the straight cone cylinder is a small cone end, and the front end is a large cone end; a plurality of grids extending in the front-to-back direction are circumferentially evenly spaced on the cylinder body of the straight cone cylinder, and there is an angle between the central axis of the grid and the horizontal line; the rear end of the fan dehydration barrel is an air outlet.
[0014] By adopting the above technical scheme, the polluted air enters the dust removal fan body from the front hood of the fan, and first meets the water mist sprayed from the first nozzle. The impeller driven by the motor initially stirs the polluted air and drives the polluted air into the fan casing to hit the guide vanes at high speed. At this time, the mixed gas slows down and some heavy particles settle. Then, due to the guidance of the guide vanes, the mixed air flow forms a violent disturbance, and the mixed air further rubs against each other and settles in the fan casing cavity. At this stage, most of the carried dust particles and atomized water droplets are fully integrated and settled. At this time, the mixed gas flow is turbulent and the flow rate is the lowest. The water mist droplets sprayed by the second nozzle again cause the fine particles it carries to be captured. The airflow comes to the fan dehydration barrel in a rotating state, and the guide grid uses the centrifugal force to make the pollutants separate from the main air duct and settle. Finally, the clean air is sent out through the air outlet.
[0015] Preferably, the length of the sedimentation tank is equal to the total length of the fan casing and the fan dewatering barrel on the dust removal fan body.
[0016] Preferably, the first baffle, the second baffle, the third baffle and the fourth baffle are fixed in sequence from front to back in the sedimentation tank along the length direction of the tank; the first baffle and the second baffle located at the front side of the sedimentation tank are adjacent to each other, and there is a gap between the lower end of the first baffle and the bottom of the sedimentation tank, and the upper part of the second baffle is provided with a through hole 1; the third baffle and the fourth baffle located at the rear side of the sedimentation tank are adjacent to each other, and there is a gap between the lower end of the third baffle and the bottom of the sedimentation tank, and the upper part of the fourth baffle is provided with a through hole 2.
[0017] Preferably, the fan front cover is connected to the fan casing via flange 1, and the fan casing, the fan dewatering barrel and the guide fence are connected via flange 2; the outer walls of flange 1 and flange 2 are both provided with spoke-shaped divergent reinforcement ribs.
[0018] Preferably, the first nozzle is connected to a first water inlet pipe, and one end of the first water inlet pipe away from the first nozzle passes through a first opening on the front cover of the fan and extends to the outside of the dust removal fan body; the second nozzle is connected to a second water inlet pipe, and one end of the second water inlet pipe away from the second nozzle passes through a second opening on the fan casing and extends to the outside of the dust removal fan body.
[0019] Preferably, an air inlet pipe is connected to the motor, and one end of the air inlet pipe away from the motor passes through the corresponding openings on the motor shield shell and the fan housing in sequence, and extends to the outside of the dust removal fan body.
[0020] Preferably, a first water pipe is fixed at the dust exhaust channel at the bottom of the fan housing, and a second water pipe is fixed at the dust exhaust channel at the bottom of the fan dehydration barrel. Several water collecting ports connected to their own tube cavities are axially opened on the top surfaces of the two water pipes. A first water outlet is provided at the front end of the first water pipe, a second water outlet is provided at the bottom of the first water pipe near its front end, a third water outlet is provided at the rear end of the second water pipe, and a fourth water outlet is provided at the bottom of the second water pipe near its rear end; the second water outlet and the fourth water outlet are both aligned with the sedimentation tank; valves are installed correspondingly on the first water outlet, the second water outlet, the third water outlet and the fourth water outlet.
[0021] Preferably, the fan housing and the top of the fan dehydration barrel are both fixedly mounted with lifting ears.
[0022] Preferably, a sewage outlet is provided at the bottom of the sedimentation tank.
[0023] Compared with the prior art, the wet vortex dust removal fan of the present invention has the following beneficial effects:
[0024] 1. The particle treatment is more thorough, and the removal effect is consistent for large and small fine particles (PM2.5 / PM10). There is no problem of passing the official environmental protection data but being unsafe for personnel health.
[0025] 2. No attenuation of ventilation volume, lifelong maintenance-free.
[0026] 3. The equipment is small in size and highly efficient; economical in cost and has almost no maintenance cost.
[0027] 4. Avoid the problem of relatively narrow applicability, eliminate the disadvantages of being unsuitable for high-temperature gases above 200℃ and sticky materials, and have a wide applicability.
[0028] 5. The purified air does not contain any harmful particulate matter and can be directly discharged into the factory or workshop without being discharged outdoors, which will not lower the temperature in the factory. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.
[0030] Figure 1 It is a schematic diagram of the overall structure of a wet vortex dust removal fan of the present invention.
[0031] Figure 2 The figure is a top view of a wet vortex dust removal fan according to the present invention.
[0032] Figure 3 for Figure 2 Cross-section view along AA direction.
[0033] Figure 4 Schematic diagram of the structure of the first nozzle.
[0034] Figure 5 Schematic diagram of the structure of the second nozzle.
[0035] Figure 6 This is a schematic diagram of the connection between the motor and the wind impeller.
[0036] Figure 7 This is a schematic diagram of the connections between the various structures inside the fan casing.
[0037] Figure 8 Schematic diagram of the structure of the guide grid.
[0038] Fig. 9 It is a schematic diagram of the structure of the first water pipe.
[0039] Fig.10 Schematic diagram of the structure of the second water pipe.
[0040] In the figure: 1-dust removal fan body, 2-sedimentation tank, 3-support legs, 4-fan front cover, 5-fan casing, 6-fan dewatering bucket, 7-fan front cover opening, 8-first nozzle, 9-first nozzle, 10-motor shield housing, 11-motor, 12-wind impeller, 13-second nozzle, 14-second nozzle, 15-guide grid, 16-grid, 17-first baffle, 18-second baffle, 19-third baffle Plate, 20-fourth baffle, 21-through hole one, 22-through hole two, 23-flange one, 24-flange two, 25-first water inlet pipe, 26-second water inlet pipe, 27-air inlet pipe, 28-first water guide pipe, 29-second water guide pipe, 30-first water outlet, 31-second water outlet, 32-third water outlet, 33-fourth water outlet, 34-lifting ear, 35-drainage outlet, 36-guide blade. DETAILED DESCRIPTION
[0041] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.
[0042] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0043] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0044] Example:
[0045] like Figure 1-3 As shown, the present invention provides a wet vortex dust removal fan, including a dust removal fan body 1 and a sedimentation tank 2, the sedimentation tank 2 is supported and fixed below the dust removal fan body 1 by legs 3, and the bottom of the sedimentation tank 2 is also fixedly installed with sedimentation tank feet.
[0046] The dust removal fan body 1 includes a fan front cover 4, a fan casing 5, and a fan dehydration barrel 6. The fan front cover 4, the fan casing 5 and the fan dehydration barrel 6 are connected in sequence from front to back according to the flow path of the dust; the bottom of the fan casing 5 and the fan dehydration barrel 6 are axially opened with a dust exhaust channel facing the sedimentation tank 2 below; the length of the sedimentation tank 2 is basically equal to the total length of the fan casing 5 and the fan dehydration barrel 6 on the dust removal fan body 1.
[0047] A circular fan front cover opening 7 is fixed at the front opening of the fan front cover 4, and a circular first nozzle 8 (such as Figure 4 As shown in FIG. 1 , a plurality of first nozzles 9 with openings facing backward and inward are connected to the first nozzle 8 in an annular direction. The water mist sprayed by the first nozzle 9 first merges the polluted air entering from the fan front cover port 7, gathers the dust particles, increases the collision force, and allows them to gradually settle.
[0048] like Figure 6 , Figure 7 As shown, the fan housing 5 is connected to a cylindrical motor shield housing 10 through a connecting pipe, and a guide vane 36 is installed on the outer peripheral wall of the motor shield housing 10. A motor 11 is fixedly installed inside the motor shield housing 10, and the motor shaft at the front end of the motor 11 is connected to the wind impeller 12, and the wind impeller 12 is located directly behind the first nozzle 8. The wind impeller 12 initially stirs the polluted air fused with the water mist, and drives the polluted air into the fan housing 5 to hit the guide vane 36 on the motor shield housing 10 at high speed. At this time, the mixed gas decelerates, and some heavy particles settle and flow into the sedimentation tank 2 below through the dust discharge channel. Then, due to the guidance of the guide vane 36, the mixed air flow forms a violent disturbance, and the mixed air further rubs against each other and settles in the fan housing cavity, and flows into the sedimentation tank 2 below through the dust discharge channel. At this stage, most of the dust particles and atomized water droplets carried in the polluted air will fully merge and settle, and at this time, the mixed gas flow is turbulent and the flow rate is the lowest.
[0049] The rear end outer surface of the motor shield housing 10 is fixed with an annular second nozzle 13 (such as Figure 5 As shown in FIG. 1 , a plurality of second nozzles 14 with openings facing forward and outward are connected in an annular direction on the second nozzle 13. The water mist droplets added by the second spraying of the second nozzle 13 can also capture the fine particles carried in the polluted air.
[0050] The interior of the fan dewatering barrel 6 is provided with a guide grid 15 connected to the fan housing 5. Figure 8As shown, the guide fence 15 is a straight cone cylinder with a conical axial section, and the rear end of the straight cone cylinder is a small cone end, and the front end is a large cone end; a plurality of grids 16 extending in the front-back direction are provided at equal intervals on the cylinder body of the straight cone cylinder, and there is an angle between the central axis of the grid 16 and the horizontal line; the rear end of the fan dehydration barrel 6 is the air outlet. The airflow arrives at the fan dehydration barrel 6 in a rotating state, and the guide fence 15 uses the centrifugal force to make the pollutants leave the main air duct, be thrown out of the grid 16 and settle, and flow into the sedimentation tank 2 below through the dust discharge channel, and finally the clean air is sent out through the air outlet.
[0051] In a further specific embodiment of the present invention, a first baffle 17, a second baffle 18, a third baffle 19, and a fourth baffle 20 are fixed in the sedimentation tank 2 in sequence from front to back along the length direction of the tank; the first baffle 17 and the second baffle 18 located at the front side of the sedimentation tank 2 are adjacent, the position of the first baffle 17 corresponds to the rear side of the motor 11, the position of the second baffle 18 corresponds to the front side of the second nozzle 13 on the motor shield housing 10, there is a gap between the lower end of the first baffle 17 and the bottom of the sedimentation tank 2, and a through hole 21 is opened in the upper part of the second baffle 18; the third baffle 19 and the fourth baffle 20 located at the rear side of the sedimentation tank 2 are adjacent, the position of the third baffle 19 corresponds to the front end of the grid 16 in the guide fence 15, there is a gap between the lower end of the third baffle 19 and the bottom of the sedimentation tank 2, and a through hole 22 is opened in the upper part of the fourth baffle 20.
[0052] The internal space of the sedimentation tank 2 is divided by the first baffle 17, the second baffle 18, the third baffle 19, and the fourth baffle 20. At the same time, the gaps and through holes in each baffle enable the several sub-tanks to be interconnected, which helps the accumulation and sedimentation of particulate pollutants in the tank and avoids overflow. A sewage outlet 35 is provided at the bottom of the sedimentation tank 2.
[0053] In a further specific embodiment of the present invention, the fan front cover 4 and the fan casing 5 are connected by a flange 23, and the fan casing 5 and the fan dewatering barrel 6 and the guide fence 15 are connected by a flange 24; the outer walls of the flange 1 23 and the flange 2 24 are provided with spoke-shaped divergent reinforcement ribs.
[0054] In a further specific embodiment of the present invention, a first water inlet pipe 25 is connected to the first nozzle 8, and an end of the first water inlet pipe 25 away from the first nozzle 8 passes through a first opening on the fan front cover 7 and extends to the outside of the dust removal fan body 1; a second water inlet pipe 26 is connected to the second nozzle 13, and an end of the second water inlet pipe 26 away from the second nozzle 13 passes through a second opening on the fan housing 5 and extends to the outside of the dust removal fan body 1. The external water source supplies water to the first nozzle 8 and the second nozzle 13 by connecting the first water inlet pipe 25 and the second water inlet pipe 26, respectively.
[0055] At the same time, the motor 11 is connected to an air inlet pipe 27 , and one end of the air inlet pipe 27 away from the motor 11 passes through corresponding openings on the motor shield housing 10 and the fan housing 5 in sequence, and extends to the outside of the dust removal fan body 1 .
[0056] In a further specific embodiment of the present invention, a first water conduit 28 is fixed to the dust discharge passage at the bottom of the fan housing 5, and a second water conduit 29 is fixed to the dust discharge passage at the bottom of the fan dewatering barrel 6. Fig. 9 , Fig.10 As shown, several water collecting ports connected to their own tube cavities are axially opened on the top surfaces of the two water pipes, a first water outlet 30 is provided at the front end of the first water pipe 28, a second water outlet 31 is provided at the bottom of the first water pipe 28 near its front end, a third water outlet 32 is provided at the rear end of the second water pipe 29, and a fourth water outlet 33 is provided at the bottom of the second water pipe 29 near its rear end; the second water outlet 31 and the fourth water outlet 33 are both aligned with the sedimentation tank 2, so that the polluted mixture flowing down from the dust removal fan body 1 can accurately fall into the sedimentation tank 2; valves are installed on the first water outlet 30, the second water outlet 31, the third water outlet 32, and the fourth water outlet 33 respectively.
[0057] In a further specific embodiment of the present invention, the tops of the fan housing 5 and the fan dewatering barrel 6 are fixedly mounted with lifting ears 34 for easy lifting.
[0058] The wet vortex dust removal fan of the present invention can treat particulate matter more thoroughly, and has the same removal effect for large and small fine particles (PM2.5 / PM10), and there will be no problem of qualified official environmental protection data but unsafe for personnel health; the ventilation volume has no attenuation and can be maintenance-free for life; the equipment is small in size and high in efficiency; the cost is economical and there is almost no maintenance cost; it avoids the problem of relatively narrow applicability and eliminates the disadvantages of being unsuitable for high-temperature gases above 200°C and sticky materials, and has a wide applicability; the purified air does not contain any harmful particulate matter and can be directly discharged into a factory or workshop without being discharged outdoors, and the temperature in the factory will not be reduced. For the northern region, it can effectively ensure the suitability of the working environment of the staff in the factory and improve work efficiency and safety.
[0059] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.
[0060] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A wet vortex dust removal fan, characterized in that: The present invention relates to a method for dispersing dust from a plurality of airbags in a plurality of airbags, wherein the plurality of airbags are provided with a plurality of first nozzles, the plurality of first nozzles are provided with a plurality of nozzles, and ... A guide vane is installed, and a motor is fixedly installed inside the motor shield shell. The motor shaft at the front end of the motor is connected to the impeller, and the impeller is located directly behind the first nozzle; a second annular nozzle is fixed on the outer surface of the rear end of the motor shield shell, and a plurality of second nozzles with openings facing forward and outward are circumferentially connected to the second nozzle; a guide grid connected to the fan casing is provided inside the fan dehydration barrel, and the guide grid is a straight cone cylinder with a conical axial section, and the rear end of the straight cone cylinder is a small cone end, and the front end is a large cone end; a plurality of grids extending in the front-to-back direction are circumferentially evenly spaced on the cylinder body of the straight cone cylinder, and there is an angle between the central axis of the grid and the horizontal line; the rear end of the fan dehydration barrel is an air outlet.
2. A wet vortex dust removal fan according to claim 1, characterized in that: The length of the sedimentation tank is equal to the total length of the fan casing and the fan dewatering barrel on the dust removal fan body.
3. A wet vortex dust removal fan according to claim 2, characterized in that: The first baffle, the second baffle, the third baffle and the fourth baffle are fixed in sequence from front to back in the sedimentation tank along the length direction of the tank; the first baffle and the second baffle located at the front side of the sedimentation tank are adjacent to each other, and there is a gap between the lower end of the first baffle and the bottom of the sedimentation tank, and the upper part of the second baffle is provided with a through hole 1; the third baffle and the fourth baffle located at the rear side of the sedimentation tank are adjacent to each other, and there is a gap between the lower end of the third baffle and the bottom of the sedimentation tank, and the upper part of the fourth baffle is provided with a through hole 2.
4. A wet vortex dust removal fan according to claim 1, characterized in that: The fan front cover is connected to the fan casing via flange 1, and the fan casing, the fan dewatering barrel and the guide fence are connected via flange 2; spoke-shaped divergent reinforcing ribs are provided on the outer side walls of flange 1 and flange 2.
5. A wet vortex dust removal fan according to claim 1, characterized in that: The first nozzle is connected to a first water inlet pipe, one end of the first water inlet pipe away from the first nozzle passes through a first opening on the front cover of the fan and extends to the outside of the dust removal fan body; the second nozzle is connected to a second water inlet pipe, one end of the second water inlet pipe away from the second nozzle passes through a second opening on the fan casing and extends to the outside of the dust removal fan body.
6. A wet vortex dust removal fan according to claim 1, characterized in that: The motor is connected with an air inlet pipe, and one end of the air inlet pipe away from the motor passes through the corresponding openings on the motor shield shell and the fan housing in sequence, and extends to the outside of the dust removal fan body.
7. A wet vortex dust removal fan according to claim 1, characterized in that: A first water pipe is fixed to the dust exhaust channel at the bottom of the fan housing, and a second water pipe is fixed to the dust exhaust channel at the bottom of the fan dehydration barrel. Several water collecting ports connected to their own tube cavities are axially opened on the top surfaces of the two water pipes. A first water outlet is provided at the front end of the first water pipe, a second water outlet is provided at the bottom of the first water pipe near its front end, a third water outlet is provided at the rear end of the second water pipe, and a fourth water outlet is provided at the bottom of the second water pipe near its rear end; the second water outlet and the fourth water outlet are both aligned with the sedimentation tank; valves are installed correspondingly on the first water outlet, the second water outlet, the third water outlet and the fourth water outlet.
8. A wet vortex dust removal fan according to claim 1, characterized in that: The fan housing and the top of the fan dewatering barrel are both fixedly mounted with lifting ears.
9. A wet vortex dust removal fan according to claim 1, characterized in that: A sewage outlet is provided at the bottom of the sedimentation tank.