CN212942147U

CN212942147U - High-efficient wet-type vortex dust remover

Info

Publication number: CN212942147U
Application number: CN202021629706.1U
Authority: CN
Inventors: 樊京念; 何广宏; 万桂春; 张承卫; 唐琳琳
Original assignee: China National Coal Mining Equipment Co ltd; Shandong Xianzhuo Electromechanical Technology Co ltd
Current assignee: China National Coal Mining Equipment Co ltd; Shandong Xianzhuo Electromechanical Technology Co ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-04-13
Anticipated expiration: 2030-08-07

Abstract

The utility model discloses a high-efficient wet-type vortex dust remover belongs to separation and environmental protection technology field, and it is equipped with the dryer, characterized in that in the frame: the air duct comprises a first straight duct, a conical duct and a second straight duct which are distributed from front to back; a spraying device and a fan are arranged in the first straight cylinder, the spraying device comprises a spraying arm and a spraying arm which are sequentially distributed from front to back, the spraying arm is connected with a spraying head, the spraying arm is connected with an atomizing nozzle, and the spraying arm are both communicated with a water pipe; more than two stages of cyclone devices are arranged in the cone, and the inclination angle of the turbofan impeller of the previous stage of cyclone device relative to the radial surface of the cone is larger than that of the turbofan impeller of the next stage of cyclone device; be equipped with a sieve section of thick bamboo and defogging net in the straight section of thick bamboo of second, a sieve section of thick bamboo is big-end-up's toper, and defogging net is located the rear of a sieve section of thick bamboo, is equipped with the blow off pipe on the diapire of the straight section of thick bamboo of second. The dust remover makes gas enter cyclone separation after humidifying and dust collecting, and finally discharges water-containing aerial fog in the middle after demisting, thereby improving the purification effect of the gas.

Description

High-efficient wet-type vortex dust remover

Technical Field

The utility model belongs to the technical field of separation and environmental protection, concretely relates to high-efficient wet-type vortex dust remover.

Background

With the acceleration of the industrialization process, the atmospheric pollution is increasingly intensified. Therefore, the government and the environmental protection department in China pay high attention to the environmental protection department, a series of emission-limiting policies are developed successively, and the emission standard of the atmospheric pollutants is becoming strict day by day. Therefore, various waste gas treatment facilities have come into play, and the dust treatment is mainly wet treatment.

Chinese patent 201320563506.4 discloses a dust removing device for cooling and purifying flue gas, which is characterized in that a dust collecting net is installed at the inlet of a fan, the outlet of the fan enters a cylindrical dust remover, a spiral guide sheet is installed in the cylindrical dust remover, and the outlet of the cylindrical dust remover is connected with a washing pool. This dust collector is earlier through dust absorption net interception partly solid particle, flue gas through preliminary purification gets into the fan once more and can reduce the resistance, reduce the damage degree to the fan, preliminarily remove dust to the flue gas, flue gas through one-level purification gets into the washing tank once more and carries out in the air that the secondary purified back discharged, can reach better air purification effect in theory, but among the practical application, exhaust gas's humidity is great, carry the pollution composition easily, and structurally compact inadequately, area is big, exhaust-gas treatment is less.

Chinese patent 201620528922.4 also discloses a defogging and dedusting unit and a defogging and dedusting device, wherein at least one layer of rotational flow plate is arranged in a cylinder with an inlet and an outlet, the rotational flow plate is composed of a blind plate and rotational flow blades, and the elevation angles of the rotational flow blades on two adjacent layers of rotational flow plates are different; the inner wall of the cylinder body is also provided with a spiral liquid guiding and dust collecting groove. Although the dust removal device realizes the rapid dynamic treatment of the dust-containing flue gas, the treatment effect needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a high-efficient wet-type vortex dust remover is provided, can improve the purifying effect of waste gas under high wind speed circulation state.

In order to solve the technical problem, the technical scheme of the utility model is that: the design is a high-efficient wet-type vortex dust remover, including the frame, is equipped with the dryer in the frame, its characterized in that: the air duct comprises a conical duct which is in a flaring shape from front to back, the front end of the conical duct is connected with the first straight duct, and the back end of the conical duct is connected with the second straight duct;

a spraying device and a fan are arranged in the first straight cylinder, the spraying device comprises a spraying arm and a spraying arm which are sequentially distributed from front to back, the spraying arm is connected with a spraying head, the spraying arm is connected with an atomizing nozzle, and the spraying arm are both communicated with a water pipe;

more than two stages of cyclone devices are arranged in the cone, and the inclination angle of the turbofan impeller of the previous stage of cyclone device relative to the radial surface of the cone is larger than that of the turbofan impeller of the adjacent next stage of cyclone device;

be equipped with a sieve section of thick bamboo and defogging net in the straight section of thick bamboo of second, a sieve section of thick bamboo is big-end-up's toper, and defogging net is located the rear of a sieve section of thick bamboo, is equipped with the blow off pipe on the diapire of the straight section of thick bamboo of second.

Furthermore, the fan comprises an impeller, a rotating drum is arranged in the impeller, a fairing is sealed at the front end of the rotating drum, a shaft sleeve is fixed in the rotating drum and installed on a rotating shaft of the motor, and fan blades are fixed on the outer wall of the rotating drum.

Furthermore, a protective cover is fixed in the first straight cylinder, the front end of the protective cover is in butt joint with the rotary cylinder, the motor is located in the protective cover, and guide vanes are fixed outside the protective cover.

Furthermore, the device also comprises a ventilation pipe, wherein one end of the ventilation pipe is communicated with the outer wall of the first straight cylinder, and the other end of the ventilation pipe is communicated with the inner cavity of the protective cover.

Further, the fairing is a spherical mask.

Furthermore, the defogging net is composed of more than two layers of filter screens which are sequentially arranged from front to back.

Furthermore, the rotational flow device comprises a fixed support connected to the cone, a fixed shaft is arranged on the fixed support, a hub is mounted on the fixed shaft, a turbofan impeller is fixed on the hub, and a bearing is mounted between the fixed shaft and the hub.

Furthermore, a guide cylinder is arranged in the fixed support, a sealing cover is arranged at the front end of the guide cylinder, the fixed shaft is installed in the guide cylinder, and the outer wall of the guide cylinder is aligned with the outer wall of the hub.

Further, the dust detection device comprises a controller, the fan is connected with the frequency converter, the controller is in control connection with the frequency converter, the first dust detector is arranged at the air inlet of the first straight cylinder, the second dust detector is arranged at the air outlet of the second straight cylinder, and the first dust detector and the second dust detector provide detection signals for the controller.

Furthermore, an electronic flow regulating valve is arranged on the water pipe, and the controller is in control connection with the electronic flow regulating valve.

Compared with the prior art, the beneficial effects of the utility model are that:

1. because the first straight cylinder is internally provided with the spray device and the fan to form an induced air washing dust catching section, the conical cylinder is internally provided with more than two stages of cyclone devices to form a vortex dewatering dust removing section, and the second straight cylinder is internally provided with the screen cylinder and the demisting net to form a silencing demisting pollution discharging section, the gas firstly enters cyclone separation after being humidified and dust catching, and finally is discharged after being demisted by water-containing aerial fog in the middle part, the water content of the discharged gas is reduced, the carrying amount of water vapor to pollutants is reduced, and the gas purifying effect is improved; and the purification is completed under the high-speed flow of the gas, so that the treatment efficiency of the waste gas is improved.

2. Because the cone is in the flaring shape from front to back, the gas is decelerated by the Venturi structure, and the gas is further separated by reducing the screw pitch of the gas cyclone and increasing the centrifugal separation times of the gas by means of the collision and centrifugal action of the vortex impeller on the gas flow.

3. Because the second straight section of thick bamboo is equipped with big-end-up's toper sieve section of thick bamboo in front, when can separating out water dust particle, the vortex velocity of flow of acceleration gas increases centrifugal force, realizes the centrifugal filtration dehydration effect, improves the dust removal dehydration rate.

4. Because the fairing is sealed at the front end of the rotary drum, water mist and liquid drops obtained after water spraying can be uniformly distributed in the air drum, and the overall processing capacity and effect of the air drum are improved.

5. The motor is arranged in the protective cover, so that the motor can be prevented from being abraded and corroded by waste gas, dust and water liquid, and the service life of the motor can be prolonged.

6. Because the one end intercommunication outer wall, the inner chamber of the other end intercommunication protection casing of ventilation pipe, can be so that the interior ventilation of protection casing does benefit to the motor heat dissipation, prolongs its life-span.

7. Because the defogging net is composed of more than two layers of filter screens which are sequentially arranged from front to back, the defogging net can capture fine fog drops in the gas to be exhausted through multi-layer filtration, thereby reducing the carrying amount of pollution components and further improving the purification effect.

8. Because the turbofan impeller passes through the wheel hub and installs on the fixed axle for the turbofan impeller can rotate under the effect of whirlwind, carries out self-interacting to the wind current, reduces the vortex resistance.

9. The controller can also provide detection signals for the controller according to the first dust detector and the second dust detector to adjust the air speed of the fan and the opening of the electronic flow regulating valve, so that the self-regulation and control of the dust removal effect are realized.

10. The utility model discloses simple structure, the washing is caught the dirt section and is had triple scrubbing dusts such as spray, spraying, venturi and catches the dirt effect, and the vortex dust removal section has triple mechanical dust removal effect such as centrifugation, collision, gravity, and amortization defogging section has the filtration dust removal effect of screen cloth centrifugal dehydration and screen cloth defogging.

11. The utility model discloses can synthesize and utilize measures such as induced air dust catching, cyclone separation and falling the noise defogging to carry out comprehensive treatment to waste gas, improve the purifying effect of dirt-containing waste gas. The device has the advantages of small volume, low noise, high efficiency, low operation cost, convenient installation, small maintenance amount and the like, and is mainly suitable for local area on-site dust collection and removal in the fields of mines, building materials, loading and the like, wherein the local area contains high-concentration dust.

Drawings

Fig. 1 is a perspective exploded view of the present invention;

FIG. 2 is a view in the direction A of FIG. 1;

FIG. 3 is a view from the direction B of FIG. 1;

FIG. 4 is a cross-sectional view C-C of FIG. 3;

FIG. 5 is a cross-sectional view taken along line D-D of FIG. 4;

FIG. 6 is a cross-sectional view E-E of FIG. 4;

fig. 7 is an electrical control schematic diagram of the present invention.

The labels in the figure are: 1. a frame; 2. a first straight cylinder; 3. a conical cylinder; 4. a second straight cylinder; 5. a water pipe; 6. a turbofan impeller; 7. a hub; 8. a fixed shaft; 9. a defogging net; 10. a blow-off pipe; 11. a spray arm; 12. a shower head; 13. a spray arm; 14. an atomizing spray head; 15. a spherical mask; 16. a fan blade; 17. a rotating drum; 18. a shaft sleeve; 19. a protective cover; 20. a motor; 21. fixing a bracket; 22. a draft tube; 23. a closure cap; 24. a guide vane; 25. a bearing; 26. a screen cylinder; 27. a vent pipe; 28. a controller; 29. a frequency converter; 30. a first dust detector; 32. a second dust detector; 33. an electronic flow control valve.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The utility model discloses the reference gas is by preceding flow direction to the back, defines the one end that gaseous got into as the front end, correspondingly defines the other end that gaseous left as the rear end.

As shown in fig. 1, the utility model discloses be equipped with the dryer in frame 1, wherein the dryer is formed by first straight section of thick bamboo 2, awl section of thick bamboo 3 and the straight section of thick bamboo 4 of second link to each other, and awl section of thick bamboo 3 is from preceding flaring form to the back, and the first straight section of thick bamboo 2, the straight section of thick bamboo 4 of rear end connection second are connected to the front end of awl section of thick bamboo 3. The air duct can adopt an integrated structure, namely a first straight tube 2, a conical tube 3 and a second straight tube 4 are respectively three parts in an integrated body; of course, the air duct may also adopt a split structure as shown in fig. 1, that is, the air duct is formed by connecting three independent bodies, namely a first straight cylinder 2, a cone cylinder 3 and a second straight cylinder 4, and each independent part may also adopt a split structure. The split structure is adopted to facilitate the installation of each part in the air duct.

As shown in fig. 4, a spray arm 11 and a spray arm 13 are arranged in the first straight cylinder 2 and sequentially distributed from front to back, a spray head 12 is connected to the spray arm 11, an atomizing nozzle 14 is connected to the spray arm 13, a water pipe 5 is arranged on the first straight cylinder 2, and the spray arm 11 and the spray arm 13 are both communicated with the water pipe 5, which of course can be communicated with independent water pipes, or can be communicated with the same water pipe. When used, either one of the spray arm 11 and the spray arm 13 may be used alone, or both may be used in combination. As shown in fig. 2, a rotating cylinder 17 is arranged in the first straight cylinder 2 at the rear end of the spraying arm 13, a ball mask 15 serving as a fairing is sealed at the front end of the rotating cylinder 17, a shaft sleeve 18 is fixed in the rotating cylinder 17, the shaft sleeve 18 is arranged on a rotating shaft of a motor 20, and a fan blade 16 is fixed on the outer wall of the rotating cylinder 17, so that the rotating cylinder 17, the shaft sleeve 18 and the fan blade 16 together form an impeller of a fan. A protective cover 19 is fixed in the first straight cylinder 2, guide vanes 24 are arranged on the outer wall of the protective cover 19, the front end of the protective cover 19 is butted with the rotary cylinder 17, and the motor 20 is positioned in the protective cover 19.

As shown in fig. 5 and 6, a two-stage swirling device is arranged in the cone 3, a fixing bracket 21 connected to the cone 3 is arranged in the swirling device, a guide cylinder 22 is arranged in the fixing bracket 21, a sealing cover 23 is arranged at the front end of the guide cylinder 22, a fixing shaft 8 is arranged in the guide cylinder 22, a hub 7 is mounted on the fixing shaft 8, a bearing 25 is mounted between the fixing shaft 8 and the hub 7, the outer wall of the guide cylinder 22 is aligned with the outer wall of the hub 7, and a turbofan impeller 6 is fixed on the hub 7. The first stage swirl device has a smaller diameter, larger width, smaller number, and larger inclination than the second stage swirl device, and the second stage swirl device has a smaller number, and larger inclination than the radial plane of the air duct.

As shown in fig. 3, a screen drum 26 and a defogging net 9 are arranged in the second straight drum 4, the screen drum 26 is in a conical shape with a large front part and a small rear part, the defogging net 9 is positioned behind the screen drum 26, the defogging net 9 is composed of more than two layers of filter screens which are sequentially arranged from front to back, and a drain pipe 10 is arranged on the bottom wall of the second straight drum 4.

In order to enhance the heat dissipation capability of the motor 20, as shown in fig. 4, a ventilation pipe 27 is further provided, and one end of the ventilation pipe 27 is communicated with the outer wall of the first straight cylinder 2, and the other end is communicated with the inner cavity of the protective cover 19. As shown in fig. 7, a controller 28 is further provided, an electronic flow control valve 33 is provided on the water pipe 5, a power supply end of the fan is connected to the frequency converter 29, a first dust detector 30 is provided at an air inlet of the first straight cylinder 2, a second dust detector 32 is provided at an air outlet of the second straight cylinder 4, the first dust detector 30 and the second dust detector provide detection signals for the controller 28, the controller 28 controls an output power supply connected to the frequency converter 29 according to the received detection signals, adjusts the rotation speed of the motor 20, and adjusts the opening degree of the electronic flow control valve 33 to change the liquid spraying amounts of the shower head 12 and the atomizer 14.

The working process of the utility model is as follows:

opening a fan and an electronic flow regulating valve 33 on a water pipe 5 to enable the water pipe 5 to be in a liquid supply state, the fan sucks dust-containing waste gas to enter a first straight cylinder 2, the dust-containing waste gas is firstly mixed with liquid drops of spray liquid and then mixed with fine mist liquid drops sprayed by an atomizing nozzle 14 to capture dust particles in the waste gas so as to enable the dust particles to be increased in water content, mixed gas is uniformly distributed in an air inlet machine rotary drum 17 under the rotating rotary cutting action of a spherical cover 15, a rotational flow is formed under the boosting action of a guide vane 24 to form a rotational flow, more dust particles are continuously captured by the liquid drops and the fine mist liquid in the flowing process, then the dust particles enter a conical cylinder 3, a strong centrifugal force is formed under the action of a rotational flow device, the water-containing dust particles with higher specific gravity are thrown to the cylinder wall, a formed water film is adhered with the thrown dust particles, the formed collected liquid flows to a second straight cylinder 4, the rest gas enters the second straight cylinder 4 to continue to perform, the water-containing dust particles with larger specific gravity are still separated, and meanwhile, the vortex flow velocity of the gas is accelerated, the centrifugal force is increased, and the separation effect is improved. The gas that is located the middle part is then caught the liquid drop by the filter screen, forms the water film on the filter screen, filters tiny droplet, and only gas passes the water film and discharges from the rear end of second straight section of thick bamboo 4, has reduced the water content of gas to reduce the pollutant that moisture carried, reach the purifying effect of preferred. Meanwhile, the arrangement of the filter screen reduces the wind speed and reduces the noise during gas emission. The centrifugally separated water-containing dust is collected at the bottom of the second straight cylinder 4 and enters the drain pipe 10 to be discharged, so that the dust is convenient for centralized treatment, can be centralized in a settling tank for recycling after settling, or is directly discharged to the existing sewage treatment facilities on site.

In the above purification process, the first dust detector 30 detects the dust content at the air inlet of the first straight cylinder 2, the second dust detector 32 detects the dust content at the air outlet of the second straight cylinder 4, the output power of the frequency converter 29 is adjusted according to the gas purification effect, the rotating speed of the motor 20 is adjusted, the opening of the electronic flow control valve 33 is adjusted, the liquid spraying amount of the spray head 12 and the atomizing spray head 14 is changed, and an ideal combination point is achieved between the purification effect and the energy consumption.

Of course, the number of the swirling devices may be increased according to the dust removal scale and effect, and is not limited to two in the above-described embodiments.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a high-efficient wet-type vortex dust remover, includes the frame, is equipped with the dryer in the frame, its characterized in that: the air duct comprises a conical duct which is in a flaring shape from front to back, the front end of the conical duct is connected with the first straight duct, and the back end of the conical duct is connected with the second straight duct;

2. A high efficiency wet scroll cleaner as claimed in claim 1, wherein: the fan comprises an impeller, a rotary drum is arranged in the impeller, a fairing is sealed at the front end of the rotary drum, a shaft sleeve is fixed in the rotary drum and mounted on a rotating shaft of a motor, and fan blades are fixed on the outer wall of the rotary drum.

3. A high efficiency wet scroll cleaner as claimed in claim 2, wherein: the protective cover is fixed in the first straight cylinder, the front end of the protective cover is butted with the rotary cylinder, the motor is positioned in the protective cover, and the guide vanes are fixed outside the protective cover.

4. A high efficiency wet scroll cleaner as claimed in claim 3, wherein: the device also comprises a ventilation pipe, wherein one end of the ventilation pipe is communicated with the outer wall of the first straight cylinder, and the other end of the ventilation pipe is communicated with the inner cavity of the protective cover.

5. A high efficiency wet scroll cleaner as claimed in claim 4, wherein: the fairing is a spherical mask.

6. A high efficiency wet scroll cleaner as claimed in claim 1, wherein: the defogging net is composed of more than two layers of filter screens which are sequentially arranged from front to back.

7. A high efficiency wet scroll cleaner as claimed in any one of claims 1 to 6, wherein: the vortex device comprises a fixed support connected to the cone, a fixed shaft is arranged on the fixed support, a wheel hub is installed on the fixed shaft, a turbofan impeller is fixed on the wheel hub, and a bearing is installed between the fixed shaft and the wheel hub.

8. A high efficiency wet scroll cleaner as claimed in claim 7, wherein: the fixed support is internally provided with a guide cylinder, the front end of the guide cylinder is provided with a sealing cover, the fixed shaft is arranged in the guide cylinder, and the outer wall of the guide cylinder is aligned with the outer wall of the hub.

9. A high efficiency wet scroll cleaner as claimed in claim 8, wherein: the air conditioner further comprises a controller, the fan is connected with the frequency converter, the controller is in control connection with the frequency converter, the first dust detector is arranged at the air inlet of the first straight cylinder, the second dust detector is arranged at the air outlet of the second straight cylinder, and the first dust detector and the second dust detector provide detection signals for the controller.

10. A high efficiency wet scroll cleaner as claimed in claim 9, wherein: and the water pipe is provided with an electronic flow regulating valve, and the controller is in control connection with the electronic flow regulating valve.