CN214680568U - Prevent whirl board dust removal defogging device that secondary carried - Google Patents
Prevent whirl board dust removal defogging device that secondary carried Download PDFInfo
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- CN214680568U CN214680568U CN202120356504.2U CN202120356504U CN214680568U CN 214680568 U CN214680568 U CN 214680568U CN 202120356504 U CN202120356504 U CN 202120356504U CN 214680568 U CN214680568 U CN 214680568U
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- 239000000428 dust Substances 0.000 title claims abstract description 65
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 106
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 64
- 239000003546 flue gas Substances 0.000 claims abstract description 59
- 239000007788 liquid Substances 0.000 claims abstract description 43
- 238000011010 flushing procedure Methods 0.000 claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 238000005406 washing Methods 0.000 claims abstract description 20
- 238000000926 separation method Methods 0.000 claims abstract description 9
- 239000004744 fabric Substances 0.000 claims abstract description 7
- 239000011159 matrix material Substances 0.000 claims abstract description 4
- 239000002245 particle Substances 0.000 claims description 29
- 230000009471 action Effects 0.000 claims description 26
- 238000005507 spraying Methods 0.000 claims description 13
- 230000000694 effects Effects 0.000 claims description 10
- 230000005484 gravity Effects 0.000 claims description 8
- 239000003595 mist Substances 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 5
- 238000009736 wetting Methods 0.000 claims description 2
- 239000002351 wastewater Substances 0.000 abstract 1
- 239000000779 smoke Substances 0.000 description 7
- 230000003009 desulfurizing effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 208000034423 Delivery Diseases 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The utility model discloses a prevent whirl board dust removal defogging device that secondary carried. The device is sequentially sleeved with an outer barrel, a screen mesh barrel and a central barrel at intervals from outside to inside, a flushing water pipe is arranged in the central barrel, and a flushing nozzle mechanism is arranged at the upper part of the flushing water pipe; a water collecting tank is formed between the lower part of the screen cylinder and the outer cylinder; the lower part of the water collecting tank is provided with an automatic outward drainage pipe valve. Flue gas enters from the bottom of the device, is subjected to centrifugal separation and liquid film dust removal by a multi-stage cyclone plate and is discharged from the top of the device; the washing water is distributed to the nozzles arranged in each dot matrix through the central cylinder, and the double functions of washing and film forming are realized on the surface of the spiral-flow plate; the dust-containing waste water in the flue gas enters a water collecting tank through a screen cylinder body by centrifugal separation and is discharged by an automatic discharge drain pipe valve. The device film forming ability is good, and the dust removal defogging is efficient, and the screen cloth can effectively prevent that the flue gas secondary from carrying, and fundamentally has solved conventional defroster inefficiency, easy jam and secondary and has carried serious scheduling problem.
Description
Technical Field
The utility model relates to a flue gas processing apparatus and chimney whirl defogging dust removal separation technology especially relate to a prevent whirl board dust removal defogging device that the secondary carried.
Background
In recent years, with the rapid development of industry, the atmospheric environmental pollution is increasingly serious, wherein SO2And the fine particulate matter is the main air pollutant produced by coal combustion.
In order to execute the environmental protection policy, various coal-fired industrial enterprises widely adopt flue gas desulfurization devices. According to statistics, 90% of thermal power generating units adopt limestone-gypsum wet desulphurization. The desulfurized flue gas contains a large amount of dust particles and slurry fog drops with different particle sizes, and if the desulfurized flue gas is directly discharged into the atmosphere, the phenomenon of 'gypsum rain' can be caused in peripheral areas, so that secondary pollution is caused. Therefore, various coal-fired industrial enterprises can further treat the desulfurized flue gas, and usually adopt large-scale devices such as wet-type electric dust removal devices or tube bundle type demister devices.
The wet electric dust collector has the problems of high initial investment, large floor area, large resistance, high power consumption and the like. Conventional tube bank formula defroster has flue gas inlet velocity of flow to distribute inhomogeneous, and too big because of the flue gas velocity of flow easily leads to the defroster to produce the liquid drop and appears the secondary and carry the phenomenon serious problem, and the sparge water is too big, has desulfurizing tower or scrubbing tower business turn over water to be difficult to balance, is compelled to reduce the sparge water, leads to its defogging to block up, and dust collection efficiency is low.
At present, there are many patent technologies about tube bank formula whirl defogging dust removal, but its ubiquitous foretell defogging dust removal efficiency is low in practical application, easily block up, the sparge water requirement is big, the flue gas secondary carries very serious problem, has reduced defogging dust removal efficiency. Although the devices of the subsequent patents are improved greatly, the problem of secondary carrying is still not solved.
For example, the Chinese patent application (application publication No. CN106582121A) discloses a tube bundle type dust and mist removing device with liquid collection. A liquid holding ring is arranged in an annular area between a defogging unit cylinder body and a cylindrical outer cylinder of the device. Although holding the liquid ring and having certain effect to the liquid film that blocks the barrel wall, nevertheless can't block and carry the water smoke that is mingled with in the flue gas because of the secondary, and hold liquid ring retaining water and do not drain and arrange outward, cause serious water balance problem and secondary to carry the problem, unable normal delivery sparge water, the unable long-term stable liquid film that forms in swirl blade surface directly leads to the dust in the flue gas to bond on swirl blade, blocks up swirl blade, reduces dust collection efficiency.
Disclosure of Invention
An object of the utility model is to overcome above-mentioned prior art's shortcoming and not enough, provide a prevent whirl board dust removal defogging device that the secondary carried.
The utility model separates the smoke flowing area from the liquid film on the outer cylinder wall through the screen cylinder body to form two different areas, thereby thoroughly preventing the high-speed smoke from flowing through the secondary carrying formed by tearing the liquid film through the liquid film, and fundamentally solving the secondary carrying problem; through the washing nozzle mechanism, a continuous and stable liquid film is formed on the surface of the rotational flow plate, so that the problems of poor film forming, low dust removal efficiency and scaling and blockage caused by adhesion of smoke dust particles on the surface of the rotational flow plate in actual engineering application are solved; the water collecting tank collects accumulated water, automatically drains water and thoroughly solves the problem of water balance.
The utility model discloses a following technical scheme realizes:
a cyclone plate dust removal demisting device for preventing secondary carrying comprises an outer cylinder body 1, a screen cylinder body 2 and a central cylinder body 3 which are sleeved at intervals in sequence from outside to inside;
the peripheral wall of the middle lower part of the screen cylinder body 2 is a non-porous section 21, and the peripheral wall of the middle upper part is a screen hole section;
a plurality of stages of rotational flow plates 4 are arranged in the sieve pore section at intervals from top to bottom; except the last stage of the rotational flow plate 4, a flushing nozzle mechanism is arranged above the remaining rotational flow plates 4 of all stages; the flushing nozzle mechanism is connected with an external water source through a flushing water pipe 5;
the rotational flow plate 4 is sleeved outside the central cylinder 3; the outer edge of the rotational flow plate 4 is jointed with the inner surface of the screen cylinder 2;
the bottom of the screen cylinder body 2 and the bottom of the non-porous section 21 are sealed, and a cavity between the non-porous section 21 and the outer cylinder body 1 forms a water collecting tank 7;
the spray water of the washing nozzle mechanism wets the blades of the rotational flow plate 4 and forms a liquid film on the surfaces of the blades;
the flue gas enters from the lower part of the cyclone plate dedusting and demisting device and flows through the multistage cyclone plates 4, the flue gas forms cyclone space under the guiding and cyclone effects of the cyclone plates 4, and dust particles in the flue gas collide with liquid films on the cyclone plates 4 and fog drops in the cyclone space and are condensed; the solid particles coagulated with water pass through the sieve pore section of the sieve cylinder 2 under the action of centrifugal force and enter a flue gas dead zone formed between the sieve cylinder 2 and the outer cylinder 1;
the flue gas with the fog drops continuously flows upwards, the fog drops in the flue gas enter the flue gas dead zone again through the screen cylinder 2 under the action of the centrifugal force under the flow guiding and swirling action of the last-stage swirling plate 4, the fog drops are adsorbed on the inner wall of the outer cylinder 1 to form a water film, the flue gas without the dust particles and the fog drops flows out of the top of the screen cylinder 2, and the separation of the flue gas from the dust and the fog drops is completed;
meanwhile, under the action of gravity, dust particles and fog drops in the liquid film adsorbed on the inner wall of the outer cylinder 1 fall into the water collecting tank 7, and are collected by the water collecting tank 7 and then discharged.
The flushing nozzle mechanism comprises a plurality of flushing nozzles 6 which spray downwards; the plurality of flushing nozzles 6 are distributed above the rotational flow plate 4 in a staggered manner in a dot matrix manner through pipe joints positioned in the central cylinder 3, so that spraying without dead angles is formed; an external water supply is supplied to the flushing nozzle 6 via the flushing water pipe 5 and the pipe connection.
The flushing nozzle mechanism can also be another structure, and comprises a T-shaped three-way framework consisting of a transverse pipe 61 and a vertical pipe 62;
the vertical pipe 62 is movably connected with the pipe joint in the central cylinder 3 in a clearance and rotation mode; the nozzles 63 are respectively arranged at two ends of the transverse pipe 61 in a mode that the water flow jet directions are opposite, and the vertical pipe 62 rotates along the axis of the pipe joint under the pushing action of forward and reverse jet water flow, so that the self-rotating multi-azimuth jet washing of the nozzles 63 is realized.
The gap between the vertical pipe 62 and the pipe joint can also wet the vortex plate 4.
The outer cylinder 1 is sealed with the upper edge of the screen cylinder 2.
Outer barrel 1, screen cloth barrel 2 and central barrel 3 structure as an organic whole, perhaps correspond to whirl boards 4 at different levels, make the multistage removable, grafting package assembly.
And an automatic outward drainage pipe valve 8 is arranged at the bottom of the water collecting tank 7.
And the pipeline of the flushing water pipe 5 is provided with an electromagnetic valve which can be controlled by a computer.
A secondary carrying prevention dedusting and demisting method comprises the following steps:
the flue gas enters from the lower part of the cyclone plate dedusting and demisting device and flows through the multistage cyclone plates 4, the flue gas forms cyclone space under the guiding and cyclone effects of the cyclone plates 4, and dust particles in the flue gas collide with liquid films on the cyclone plates 4 and fog drops in the cyclone space and are condensed; the solid particles coagulated with water pass through the sieve pore section of the sieve cylinder 2 under the action of centrifugal force and enter a smoke dead zone formed between the sieve cylinder 2 and the outer cylinder 1;
the flue gas with the fog drops continuously flows upwards, the fog drops in the flue gas enter the flue gas dead zone again through the screen cylinder 2 under the action of the centrifugal force under the flow guiding and swirling action of the last-stage swirling plate 4, the fog drops are adsorbed on the inner wall of the outer cylinder 1 to form a water film, the flue gas without the dust particles and the fog drops flows out of the top of the screen cylinder 2, and the separation of the flue gas from the dust and the fog drops is completed;
meanwhile, under the action of gravity, dust particles and fog drops in the liquid film adsorbed on the inner wall of the outer cylinder 1 fall into the water collecting tank 7, and are collected by the water collecting tank 7 and then discharged.
Compared with the prior art, the utility model, following advantage and effect have:
1. the screen cloth barrel can thoroughly separate the smoke flowing area from the liquid film adsorption area, and the secondary carrying problem is solved. The liquid film adsorption zone is because the water seal effect of lower part water catch bowl, and the flue gas can't flow between screen cloth barrel and outer barrel, and fundamentally has solved the secondary of flue gas and has carried the problem, has improved defogging dust collection efficiency.
2. The flushing nozzle mechanism has two embodiments;
the first one is a plurality of nozzles that wash down, can form on the whirl board surface and last even liquid film, and when fine dust particle striking whirl board, the liquid film that is on whirl board surface that can be fine adsorbs, through the water catch bowl of discharging of screen cloth barrel again, has avoided the scale deposit to block up the problem, has improved whirl board dust collection efficiency simultaneously.
The washing nozzle of the second kind can autogiration, carries out all-round washing to there is the liquid that the joint gap spills in the peripheral department of center barrel, can form on the whirl board surface and last even liquid film, when fine dust particle striking whirl board, can be fine by the liquid film adsorption on whirl board surface, discharge into the water catch bowl through the screen cloth barrel again, avoided the scale deposit to block up the problem, improved whirl board dust collection efficiency simultaneously.
When the water pressure is high, part of water leaks from the gap at the joint of the vertical pipe 62 and the pipe joint; the transverse pipe 61 and the vertical pipe 62 form a T shape, so that the gravity and the water pressure of the T-shaped pipe form self balance, and constant-pressure water spraying is maintained;
the automatic rotation omnibearing washing nozzle can carry out omnibearing spraying through the automatic rotation of the nozzle, and under the condition of smaller water spraying amount, the uniform water spraying is realized, and the purpose of water saving is achieved.
3. The dust particles adsorbed on the water film fall to the water collecting tank under the action of gravity, when the water level pressure head of the water collecting tank is increased to an upper limit value, the automatic drain valve is automatically opened under the action of pressure, and liquid in the water collecting tank is automatically discharged with the dust particles; when the water level of the water collecting tank is gradually reduced to a lower limit value, the outward drainage pipe valve is automatically closed. The automatic drain valve has the function of automatically discharging dust particles and accumulated liquid, and the liquid level in the water collecting tank is always maintained at a certain height to form a water seal, so that the flue gas is prevented from escaping. Due to the arrangement of the automatic water collecting tank discharge device, even if the flushing water is continuously put into operation, the problem of water overflow of a desulfurizing tower or a washing tower can be avoided, and the water balance in the tower can be skillfully realized.
Drawings
Fig. 1 is the utility model discloses prevent whirl board dust removal defogging device structural schematic diagram that the secondary carried.
FIG. 2 is a schematic structural view of a secondary carrying prevention cyclone plate dedusting and demisting device of the present invention; the figure mainly shows another structure of the flushing nozzle mechanism, and other structures are the same as those in figure 1.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments.
Examples
As shown in fig. 1. The utility model discloses a cyclone plate dedusting and demisting device for preventing secondary carrying, which comprises an outer cylinder body 1, a screen cylinder body 2 and a central cylinder body 3 which are sleeved at intervals in sequence from the outside to the inside;
a flue gas dead zone in which flue gas cannot flow is formed between the screen cylinder body 2 and the outer cylinder body 1, and the flowing flue gas is isolated from a liquid film on the inner wall surface of the outer cylinder body 1, so that the problem of secondary carrying is fundamentally solved.
The peripheral wall of the middle lower part of the screen cylinder body 2 is a non-porous section 21, and the peripheral wall of the middle upper part is a screen hole section;
a plurality of stages of rotational flow plates 4 are arranged in the sieve pore section at intervals from top to bottom; except the last stage of the rotational flow plate 4, a flushing nozzle mechanism is arranged above the remaining rotational flow plates 4 of all stages; the flushing nozzle mechanism is connected with an external water source through a flushing water pipe 5. The effect of stabilizing the liquid film on whirl board 4, the whirl produces centrifugal force and will have the liquid drop and the flue gas separation of dust, and the dust granule has improved dust collection efficiency greatly in being adsorbed the liquid film on whirl board surface. The flush nozzle mechanism may be timed to open, or may be continuously or intermittently opened depending on the particular application requirements.
The rotational flow plate 4 is sleeved outside the central cylinder 3; the outer edge of the rotational flow plate 4 is jointed with the inner surface of the screen cylinder 2;
the bottom of the screen cylinder body 2 and the bottom of the non-porous section 21 are sealed, and a cavity between the non-porous section 21 and the outer cylinder body 1 forms a water collecting tank 7;
the spray water of the washing nozzle mechanism wets the blades of the rotational flow plate 4 and forms a liquid film on the surfaces of the blades;
the flue gas enters from the lower part of the cyclone plate dedusting and demisting device and flows through the multistage cyclone plates 4, the flue gas forms cyclone space under the guiding and cyclone effects of the cyclone plates 4, and dust particles in the flue gas collide with liquid films on the cyclone plates 4 and fog drops in the cyclone space and are condensed; the solid particles coagulated with water pass through the sieve pore section of the sieve cylinder 2 under the action of centrifugal force and enter a flue gas dead zone formed by (a gap between) the sieve cylinder 2 and the outer cylinder 1;
the flue gas with the fog drops continuously flows upwards, the fog drops in the flue gas enter the flue gas dead zone again through the screen cylinder 2 under the action of the centrifugal force under the flow guiding and swirling action of the last-stage swirling plate 4, the fog drops are adsorbed on the inner wall of the outer cylinder 1 to form a water film, the flue gas without the dust particles and the fog drops flows out of the top of the screen cylinder 2, and the separation of the flue gas from the dust and the fog drops is completed;
meanwhile, under the action of gravity, dust particles and fog drops in the liquid film adsorbed on the inner wall of the outer cylinder 1 fall into the water collecting tank 7, and are collected by the water collecting tank 7 and then discharged.
The flushing nozzle mechanism comprises a plurality of flushing nozzles 6 which spray downwards; the plurality of flushing nozzles 6 are distributed above the rotational flow plate 4 in a staggered manner in a dot matrix manner through pipe joints positioned in the central cylinder 3, so that spraying without dead angles is formed; an external water supply is supplied to the flushing nozzle 6 via the flushing water pipe 5 and the pipe connection.
A plurality of wash jet 6 that spray down form the liquid film that lasts stable on whirl board 4 surfaces, and it is poor to have solved the film forming in the actual engineering application, and dust collection efficiency is low, and flue gas dust particle bonds the scale deposit jam problem on whirl board 4 surfaces.
As shown in fig. 2. The flushing nozzle mechanism can also be another structure, and comprises a T-shaped three-way framework consisting of a transverse pipe 61 and a vertical pipe 62;
the vertical pipe 62 is movably connected with the pipe joint in the central cylinder 3 in a clearance and rotation mode; the nozzles 63 are respectively arranged at two ends of the transverse pipe 61 in a mode that the water flow jet directions are opposite, and the vertical pipe 62 rotates along the axis of the pipe joint under the pushing action of forward and reverse jet water flow, so that the self-rotating multi-azimuth jet washing of the nozzles 63 is realized.
The gap between the vertical pipe 62 and the pipe joint can also wet the vortex plate 4.
The self-rotating multi-direction jet washing is carried out, the vertical pipe 62 is inserted into the pipe joint, most of water from the washing water pipe 5 is pressed into the inlet of the vertical pipe 62, and part of water can leak out from the connecting gap between the vertical pipe 62 and the pipe joint, so that the gravity and the water pressure of the T-shaped three-way framework form self balance, the constant-pressure water spraying is maintained, and the leaked water can also form a stable liquid film on the rotational flow plate to form self balance; and the flowing liquid film formed by the water flowing out from the gap between the vertical pipe 62 and the pipe joint can reduce the axial rotation resistance of the vertical pipe 62. The water with certain momentum is sprayed out by the reverse nozzles of the two nozzles 63, and can automatically rotate due to the mutual pushing action principle of force, so that uniform water spraying can be realized under the condition of less water flow, and the effects of saving water quantity, uniformly wetting the rotational flow plate 4 and forming a liquid film are achieved.
The outer cylinder 1 is sealed with the upper edge of the screen cylinder 2.
The outer cylinder body 1, the screen cylinder body 2 and the central cylinder body 3 are of an integral structure or are made into a multi-section detachable, inserted or threaded assembling structure corresponding to each level of the rotational flow plate 4; the specific grade number is flexibly set according to the process requirement.
An automatic outward drainage pipe valve 8 is mounted at the bottom of the water collecting tank 7; the problem of water balance between the desulfurizing tower and the washing tower is solved ingeniously, the problems of washing water washing time and water quantity are further solved, and the problems of continuous film forming and blocking are further solved.
And the pipeline of the flushing water pipe 5 is provided with an electromagnetic valve or a manual valve. The solenoid valve may be computer controlled.
The utility model discloses a prevent secondary and carry dust removal defogging method, the accessible is realized as follows:
the flue gas enters from the lower part of the cyclone plate dedusting and demisting device and flows through the multistage cyclone plates 4, the flue gas forms cyclone space under the guiding and cyclone effects of the cyclone plates 4, and dust particles in the flue gas collide with liquid films on the cyclone plates 4 and fog drops in the cyclone space and are condensed; the solid particles coagulated with water pass through the sieve pore section of the sieve cylinder 2 under the action of centrifugal force and enter a smoke dead zone formed between the sieve cylinder 2 and the outer cylinder 1;
the flue gas with the fog drops continuously flows upwards, the fog drops in the flue gas enter the flue gas dead zone again through the screen cylinder 2 under the action of the centrifugal force under the flow guiding and swirling action of the last-stage swirling plate 4, the fog drops are adsorbed on the inner wall of the outer cylinder 1 to form a water film, the flue gas without the dust particles and the fog drops flows out of the top of the screen cylinder 2, and the separation of the flue gas from the dust and the fog drops is completed;
meanwhile, under the action of gravity, dust particles and fog drops in the liquid film adsorbed on the inner wall of the outer cylinder 1 fall into the water collecting tank 7, and are collected by the water collecting tank 7 and then discharged.
As described above, the present invention can be preferably realized.
The embodiments of the present invention are not limited by the above-mentioned embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (8)
1. The utility model provides a prevent whirl board dust removal defogging device that secondary carried, its characterized in that: comprises an outer cylinder (1), a screen cylinder (2) and a central cylinder (3) which are sleeved at intervals in sequence from outside to inside;
the peripheral wall of the middle lower part of the screen cylinder body (2) is a non-porous section (21), and the peripheral wall of the middle upper part is a screen section;
a plurality of stages of rotational flow plates (4) are arranged in the sieve pore section at intervals from top to bottom; except the last stage of the rotational flow plate (4), a flushing nozzle mechanism is arranged above the remaining rotational flow plates (4) at all stages; the flushing nozzle mechanism is connected with an external water source through a flushing water pipe (5);
the rotational flow plate (4) is sleeved outside the central cylinder (3); the outer edge of the rotational flow plate (4) is jointed with the inner surface of the screen cylinder (2);
the screen cylinder (2) and the bottom of the non-porous section (21) are sealed, and a cavity between the non-porous section (21) and the outer cylinder (1) forms a water collecting tank (7);
the spray water of the washing nozzle mechanism wets the blades of the rotational flow plate (4) and forms a liquid film on the surfaces of the blades;
the flue gas enters from the lower part of the cyclone plate dedusting and demisting device and flows through the multistage cyclone plates (4), the flue gas forms a cyclone space under the guiding and cyclone effects of the cyclone plates (4), and dust particles in the flue gas collide with liquid films on the cyclone plates (4) and fog drops in the cyclone space and are condensed; the solid particles coagulated with water pass through the sieve pore section of the sieve mesh cylinder (2) under the action of centrifugal force and enter a flue gas dead zone formed between the sieve mesh cylinder (2) and the outer cylinder (1);
the flue gas with the fog drops continuously flows upwards, the fog drops in the flue gas enter a flue gas dead zone again through the screen cylinder (2) under the action of the flow guide and the rotational flow of the last-stage rotational flow plate (4) and are adsorbed on the inner wall of the outer cylinder (1) to form a water film under the action of centrifugal force, the flue gas from which the dust particles and the fog drops are removed flows out from the top of the screen cylinder (2), and the separation of the flue gas from the dust and the fog drops is finished;
meanwhile, under the action of gravity, dust particles and fog drops in the liquid film adsorbed on the inner wall of the outer cylinder body (1) fall into the water collecting tank (7) and are collected by the water collecting tank (7) and then discharged.
2. The device for preventing dust and mist of the cyclone plate carried secondarily as claimed in claim 1, wherein: the flushing nozzle mechanism comprises a plurality of downward-spraying flushing nozzles (6); the plurality of flushing nozzles (6) are distributed above the rotational flow plate (4) in a staggered manner in a dot matrix manner through pipe joints positioned in the central cylinder (3) to form spraying without dead angles; the external water source is transmitted to the washing nozzle (6) through the washing water pipe (5) and the pipe joint.
3. The device for preventing dust and mist of the cyclone plate carried secondarily as claimed in claim 2, wherein: the flushing nozzle mechanism comprises a T-shaped three-way framework consisting of a transverse pipe (61) and a vertical pipe (62);
the vertical pipe (62) is movably connected with a pipe joint in the central cylinder (3) in a clearance and rotation mode; the nozzles (63) are respectively arranged at two ends of the transverse pipe (61) in a mode that the water flow spraying directions are opposite, and the vertical pipe (62) rotates along the axis of the pipe joint under the pushing action of forward and reverse water flow spraying, so that the self-rotating multi-azimuth spraying washing of the nozzles (63) is realized.
4. The device for preventing dust and mist of the cyclone plate carried secondarily as claimed in claim 3, wherein: the gap between the vertical pipe (62) and the pipe joint can be used for wetting the vortex plate (4).
5. The device for preventing dust and mist of the cyclone plate carried secondarily as claimed in claim 4, wherein: the outer cylinder (1) is sealed with the upper edge of the screen cylinder (2).
6. The device for preventing dust and mist of the cyclone plate carried secondarily as claimed in claim 5, wherein: outer barrel (1), screen cloth barrel (2) and central barrel (3) structure as an organic whole, perhaps correspond to whirl board (4) at different levels, make the multistage removable, grafting package assembly.
7. The device for preventing dust and mist of the cyclone plate carried secondarily as claimed in claim 6, wherein: and an automatic outward drainage pipe valve (8) is arranged at the bottom of the water collecting tank (7).
8. The device for preventing dust and mist of the cyclone plate carried secondarily as claimed in claim 7, wherein: and the pipeline of the flushing water pipe (5) is provided with an electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120356504.2U CN214680568U (en) | 2021-02-07 | 2021-02-07 | Prevent whirl board dust removal defogging device that secondary carried |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120356504.2U CN214680568U (en) | 2021-02-07 | 2021-02-07 | Prevent whirl board dust removal defogging device that secondary carried |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214680568U true CN214680568U (en) | 2021-11-12 |
Family
ID=78567316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120356504.2U Withdrawn - After Issue CN214680568U (en) | 2021-02-07 | 2021-02-07 | Prevent whirl board dust removal defogging device that secondary carried |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214680568U (en) |
-
2021
- 2021-02-07 CN CN202120356504.2U patent/CN214680568U/en not_active Withdrawn - After Issue
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