CN210159391U

CN210159391U - Dust removal device combining sound wave agglomeration device with spraying

Info

Publication number: CN210159391U
Application number: CN201920045267.0U
Authority: CN
Inventors: 张君宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-11
Filing date: 2019-01-11
Publication date: 2020-03-20
Anticipated expiration: 2029-01-11

Abstract

The utility model discloses a sound wave reunion device combines dust collector of spraying relates to the technical field who sprays dust collecting equipment, and it includes the spray column, the spray column has set gradually spraying system and defroster by entry to export orientation, is located spraying system with still be provided with the atomizer of sound wave reunion device and spraying between the defroster, atomizer is located the below of sound wave reunion device. The utility model discloses have the effect of effectively reuniting smoke and dust and little droplet in the flue gas.

Description

Dust removal device combining sound wave agglomeration device with spraying

Technical Field

The utility model belongs to the technical field of the dust collecting equipment technique that sprays and specifically relates to a sound wave reunion device combines dust collector of spraying.

Background

The sound wave agglomeration technology is an effective means for flue gas desulfurization, spraying and demisting. The sound wave agglomeration chamber and the sound source are arranged in the desulfurizing tower and the discharge flue, smoke vibration is caused through certain sound intensity and frequency, smaller fog drops and smoke dust are enabled to collide with each other in the vibration process and are agglomerated, and the sound wave agglomeration process is completed. The polymerized fog drops become bigger, the inertia effect is enhanced, and a good foundation is created for inertia demisting.

The existing Chinese patent document with the publication number of CN206587554U discloses a device for removing fine particles by combining sound wave agglomeration and flue demisting, which comprises a wet flue gas desulfurization tower, wherein the outlet of the wet flue gas desulfurization tower is connected with a flue, a sound wave agglomeration device is arranged in the flue, the inlet of the sound wave agglomeration device is communicated with the outlet of the wet flue gas desulfurization tower through the flue, and a cleaning demisting device is also arranged in the flue in the outlet direction of the sound wave agglomeration device.

The sound wave agglomeration is a good mist droplet and aerosol demisting auxiliary means. However, there are also disadvantages as follows: 1. the fog drop quantity concentration in the clean smoke is too small, the collision probability is small, and the agglomeration effect is not obvious; 2. the diameter of the fog drops in the purified smoke is too small, large fog drops with obvious inertia can not be formed through agglomeration, and the auxiliary function of inertial demisting is limited. The two problems limit the popularization and application effects of sound wave agglomeration demisting.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sound wave reunion device combines dust collector of spraying, it has the effect of effectively reuniting smoke and dust and little droplet in the flue gas.

The above object of the present invention can be achieved by the following technical solutions:

the utility model provides a dust collector that sound wave reunion device combines spraying, includes the spray column, the spray column has set gradually spraying system and defroster by entry to export orientation, is located spraying system with still be provided with the atomizer of sound wave reunion device and spraying between the defroster, atomizer is located the below of sound wave reunion device.

By adopting the technical scheme, the spraying device sprays the interior of the spray tower, so that the concentration of fog drops in the flue gas is improved, and when the flue gas enters the region of the sound wave agglomeration device, smoke dust with smaller size and dirty fog drops in the flue gas can be better agglomerated to large fog drops in the spray. The large fog drops have better inertia and can be easily taken out by the demister, so that small-sized smoke dust and dirty fog drops in the smoke can be removed.

The utility model discloses further set up to: the sound wave agglomeration device comprises an agglomeration chamber, a power amplifier, a signal generator and an even number of sound sources, wherein the sound sources are arranged on the side wall in the spray tower in a pairwise opposite mode.

By adopting the technical scheme, the sound sources on the two sides work simultaneously, and the relative vibration effect is generated in the spray tower, so that the smoke dust and dirty fog drops in the smoke gas are better agglomerated together.

The utility model discloses further set up to: the spraying device comprises a plurality of spraying nozzles and a water supply pipe communicated with the spraying nozzles, the water supply pipe is communicated to a water supply device for supplying water to the water supply pipe, and the water supply device is positioned outside the spraying tower.

By adopting the technical scheme, the water supply device supplies water to the water supply pipe and provides required water pressure, and the spray head sprays the water to form spray. The spray is mixed with the smoke dust and dirty fog drops in the flue gas in the spray tower by collision.

The utility model discloses further set up to: the water supply device comprises a water storage tank, a water pump and a return pipe, wherein the inlet end of the water pump is connected with the water storage tank, and the outlet end of the water pump is communicated with the water supply pipe; one end of the return pipe is communicated with the water supply pipe, the other opposite end of the return pipe is communicated with the inside of the water storage tank, and a back pressure safety valve is installed on a pipeline of the return pipe.

Through adopting above-mentioned technical scheme, the water pump in with the storage water tank is sent to in the water supply pipe, nevertheless because too big water yield can't in time discharge from the shower nozzle, water can follow the return line and flow back to in the storage water tank, the pressure in the release line.

The utility model discloses further set up to: and the plurality of spray heads are uniformly distributed in the same horizontal plane in the spray tower.

Through adopting above-mentioned technical scheme, make the spraying more even to the collision of flue gas, reunion and absorbent effect.

The utility model discloses further set up to: the nozzle of the spray head is arranged downwards.

By adopting the technical scheme, the spraying direction of the spray head is opposite to the flowing direction of the flue gas, so that the mixing collision of large fog drops and the flue gas is facilitated.

The utility model discloses further set up to: and a rectifying piece for reducing turbulent flow is also arranged at the outlet of the sound wave agglomeration device.

Through adopting above-mentioned technical scheme, after the flue gas through spraying and sound wave reunion device, the flow of flue gas is more in disorder, and chaotic flue gas can make the defogging effect of defroster reduce. Therefore, the smoke is rectified, and the smoke moves upwards more smoothly.

The utility model discloses further set up to: the fairing comprises a cylindrical center block and an annular outer cover cylinder, the center block and the outer cover cylinder are coaxially arranged, a plurality of blades are arranged between the center block and the outer cover cylinder and are distributed along the circumferential direction of the center block at equal intervals, and the attack angle of each blade is 0 degree.

Through adopting above-mentioned technical scheme, the flue gas will pass from the region between the adjacent blade, and the flue gas that flows through between the adjacent blade can receive the restraint of blade and more remain vertical ascending motion vector, makes the whole better upward movement of flue gas.

The utility model discloses further set up to: the lower surface of the center block is also provided with a rectifying cone.

Through adopting above-mentioned technical scheme, the area at blade place can be better guided to the flue gas to the fairing cone, avoids the flue gas to collide on the center block, causes the kinetic energy loss of flue gas.

To sum up, the utility model discloses a beneficial technological effect does:

1. by arranging the sound wave agglomeration device, small-sized smoke dust and dirty fog drops are better agglomerated together under the vibration action of sound waves;

2. by arranging the spraying device, a large amount of fog drops collide and agglomerate smoke dust and dirty fog drops in the smoke, and meanwhile, the concentration of the fog drops in the smoke is improved, so that the smoke dust and the dirty fog drops can be more easily agglomerated to the large fog drops in the spray after entering the sound wave agglomeration device, and the agglomeration effect is improved;

3. through setting up the fairing, carry out the rectification to the flue gas, make the more smooth and easy upward movement of flue gas, improve the working effect of defroster.

Drawings

FIG. 1 is a schematic diagram of a sonic agglomeration apparatus in combination with a spray dust removal apparatus;

fig. 2 is an isometric test view of a fairing.

In the figure, 1, a spray tower; 2. a circulation pump; 3. a spray system; 4. a spraying device; 41. a spray head; 42. a water supply pipe; 5. a water supply device; 51. a water storage tank; 52. a water pump; 53. a return pipe; 54. a back pressure relief valve; 6. a sonic agglomeration device; 61. a sound source; 62. a power amplifier; 63. a signal generator; 7. a fairing; 71. a center block; 72. an outer housing tube; 73. a blade; 74. a rectifying cone; 8. a primary demister; 9. and a rear demister.

Detailed Description

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

Referring to fig. 1 and 2, the utility model discloses a dust collector that sound wave reunion device 6 combines spraying, including spray column 1. A spraying system 3, a primary demister 8 and a rear demister 9 are sequentially arranged in the spraying tower 1 from the inlet to the outlet. The spraying system 3 comprises a spraying head, a spraying pipe communicated with the spraying head and a circulating pump 2 positioned outside the spraying tower 1. The circulating pump 2 conveys water at the bottom of the spray tower 1 into the spray pipe to realize water circulation. The primary demister 8 and the rear demister 9 sequentially complete demisting, and the purified flue gas is discharged from an outlet of the spray tower. It should be noted that the spray tower 1 belongs to the prior art, and therefore, detailed description thereof is omitted.

The utility model discloses a main improvement point lies in: the sound wave aggregation device 6 and the spraying device 4 are arranged between the primary demister 8 and the rear demister 9.

The acoustic agglomeration device 6 comprises an acoustic source 61, a power amplifier 62 and a signal generator 63. Wherein the sound source 61, the power amplifier 62 and the signal generator 63 are electrically connected in sequence. The sound source 61 is fixed to the inner wall of the spray tower 1. The number of the sound sources 61 is four, and two of the sound sources are arranged on the inner wall of the spray tower 1 in an opposite manner. The frequency of the sound source 61 is 1600-2200Hz, and the sound pressure level is 110-150 dB.

The smoke is vibrated through certain sound intensity and frequency, smaller fog drops and smoke dust are enabled to collide with each other and gather in the vibration process, and the sound wave agglomeration process is completed. The polymerized fog drops become bigger, the inertia effect is enhanced, and a good foundation is created for inertia demisting.

The spraying device 4 is positioned between the acoustic agglomeration device 6 and the spraying system 3. The spraying device 4 comprises a plurality of spraying nozzles 41 and a water supply pipe 42 communicated with the spraying nozzles 41, wherein the water supply pipe 42 is fixed on the inner wall of the spray tower 1, and the water supply pipe 42 is connected to a water supply device 5 for supplying water to the water supply pipe 42. The diameter of the spray mist sprayed by the spray head 41 is between 300 and 1200 microns.

The plurality of spray heads 41 are uniformly distributed in the same horizontal plane in the spray tower 1, the spraying direction of the spray heads 41 is downward and is opposite to the flowing direction of the flue gas in the spray tower 1, and therefore the washing effect of the fog drops can be improved. The water supply pipe 42 is fixed in the spray tower 1, penetrates the tower wall of the spray tower 1, and communicates with the water supply device 5 outside the spray tower 1. The water supply device 5 includes a water tank 51 and a water pump 52. The inlet end of the water pump 52 is communicated with the storage tank 51, and the outlet end of the water pump 52 is communicated with the water supply pipe 42. The water pump 52 pumps the water 52 in the water storage tank 51 to the water supply pipe 42. A return pipe 53 is also connected to the water supply pipe 42, and the end of the return pipe 53 remote from the water supply pipe 42 is connected to the interior of the water storage tank 51. A back pressure relief valve 54 is also installed in the line of the return pipe 53. Since the water in the water supply pipe 42 cannot be all discharged from the shower head 41 in time, when the pressure in the water supply pipe 42 exceeds the threshold value of the back pressure relief valve 54, the water can flow back into the water storage tank 51 from the return pipe 53 in time, releasing the pressure in the water supply pipe 42.

Meanwhile, the water pump 52 sends water into the water supply pipe 42 and sprays the water through the nozzle 41 to form spray mist droplets with the size of 300 and 1200 microns. The spray droplets have significant inertia and can be removed by inertial demisting at a rate approaching 100%. In the upward process of the smoke, the spray mist drops collide with smoke dust and dirty mist drops in the smoke, and the smoke dust and the dirty mist drops with the size of 20 microns are gathered together to a certain extent.

On the other hand, through manual spraying, the concentration of fog drops in the flue gas is greatly increased, so that harmful substances such as smoke dust and small fog drops carried in the flue gas are greatly increased in the probability of collision and agglomeration with the spray fog drops under the action of the sound wave agglomeration device 6, and the demisting effect of the sound wave agglomeration device 6 is greatly enhanced.

A rectifying piece 7 is also arranged between the sound wave agglomeration device 6 and the rear demister 9. The fairing 7 comprises a coaxially arranged central block 71 and an outer casing 72. The center block 71 is a cylinder and the outer jacket 72 is a ring-shaped piece. The outer jacket cylinder 72 is fixed to the inner wall of the spray tower 1 and is disposed coaxially with the spray tower 1. The center block 71 and the outer cover cylinder 72 are located in the same horizontal plane. A plurality of vertically arranged vanes 73 are arranged between the central block 71 and the opposite wall surfaces of the outer cover cylinder 72, and the attack angle of the vanes 73 is 0 °. A fairing cone 74 is also provided on the lower surface of the center block 71. The fairing cone 74, the center block 71, the vanes 73 and the outer shroud 72 are integrally formed.

After the flue gas passes through the spraying device 4, the primary demister 8 and the sound wave agglomeration device 6, the flow of the flue gas is disturbed, and more turbulence is generated. And chaotic flue gas can make back defroster 9's defogging effect reduce, so fairing 7 can carry out the rectification to the flue gas, makes the more smooth and easy upward movement of flue gas. The smoke smoothly enters the area of the vanes 73 through the fairing cone 74, and the smoke passes between adjacent vanes 73. The smoke passing between the adjacent blades 73 is restrained by the blades 73 and more vertical upward motion vectors are retained, so that the smoke moves upward better overall.

The specific implementation mode is as follows: the flue gas to be cleaned moves from bottom to top entering from the inlet of the spray tower 1. After passing through the spraying system 3 of the spraying tower 1, a lot of large-particle dust and smoke dust in the flue gas fall to the bottom of the tower along with the spraying liquid, but a lot of smoke dust and fog drops with smaller sizes continue to go upwards. In the ascending process, the flue gas first contacts the primary mist eliminator 8, wherein most of the mist droplets are removed. But also has a plurality of micron-sized smoke dust and fog drops with smaller sizes, and the micron-sized smoke dust and fog drops can not be removed by a common demister due to smaller inertia, so as to continuously go upwards. The flue gas is then in intensive contact with the spray of the spraying device 4. The manual spraying can effectively improve the concentration of fog drops in the smoke, and the fog drops collide and polymerize with smoke dust and dirty fog drops in the smoke to a certain degree. And then the flue gas enters the sound wave agglomeration device 6, and the micron-sized smoke dust and dirty fog drops continuously collide with the spray fog drops in the flue gas under the vibration action generated by the sound waves and are polymerized onto the spray fog drops. Because the artificially sprayed droplets have a greater inertia than the more minute smoke and "dirty" droplets, they can be removed by the rear mist eliminator 9. Therefore, the whole body has the effect of removing the small-particle smoke dust and dirty fog drops in the smoke.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a dust collector that sound wave reunion device combines spraying, includes spray column (1), spray column (1) has set gradually spraying system (3), elementary defroster (8) and back defroster (9), its characterized in that by entry to export orientation: and a sound wave agglomeration device (6) and a spraying device (4) for spraying are also arranged between the demister (8) and the rear demister (9), and the spraying device (4) is positioned below the sound wave agglomeration device (6).

2. The sonic agglomeration apparatus of claim 1 in combination with a spray dust removal apparatus, wherein: the sound wave agglomeration device (6) comprises an agglomeration chamber, a power amplifier (62), a signal generator (63) and an even number of sound sources (61), wherein the sound sources (61) are oppositely arranged on the side wall in the spray tower (1) in pairs.

3. The sonic agglomeration apparatus of claim 1 in combination with a spray dust removal apparatus, wherein: the spraying device (4) comprises a plurality of spraying nozzles (41) and a water supply pipe (42) communicated with the spraying nozzles (41), the water supply pipe (42) is communicated to a water supply device (5) for supplying water to the water supply pipe (42), and the water supply device (5) is positioned outside the spraying tower (1).

4. The sonic agglomeration apparatus of claim 3 in combination with a spray dust removal apparatus, wherein: the water supply device (5) comprises a water storage tank (51), a water pump (52) and a return pipe (53), the inlet end of the water pump (52) is connected with the water storage tank (51), and the outlet end of the water pump (52) is communicated with the water supply pipe (42); one end of the return pipe (53) is communicated with the water supply pipe (42), the other opposite end is communicated with the inside of the water storage tank (51), and a back pressure safety valve (54) is arranged on the pipeline of the return pipe (53).

5. The sonic agglomeration apparatus of claim 3 in combination with a spray dust removal apparatus, wherein: the plurality of spray heads (41) are uniformly distributed in the same horizontal plane in the spray tower (1).

6. The sonic agglomeration apparatus of claim 3 in combination with a spray dust removal apparatus, wherein: the nozzle of the spray head (41) is arranged downwards.

7. The sonic agglomeration apparatus of claim 1 in combination with a spray dust removal apparatus, wherein: and a rectifying piece (7) for reducing turbulent flow is also arranged at the outlet of the sound wave agglomeration device (6).

8. The sonic agglomeration apparatus of claim 7 in combination with a spray dust removal apparatus, wherein: the fairing (7) comprises a cylindrical center block (71) and an annular outer cover cylinder (72), the center block (71) and the outer cover cylinder (72) are coaxially arranged, a plurality of blades (73) are arranged between the center block (71) and the outer cover cylinder (72) and are equidistantly distributed along the circumferential direction of the center block (71), and the attack angle of each blade (73) is 0 degree.

9. The sonic agglomeration apparatus of claim 8 in combination with a spray dust removal apparatus, wherein: the lower surface of the center block (71) is also provided with a rectifying cone (74).