CN210278617U

CN210278617U - High-efficient dust removal defogging device

Info

Publication number: CN210278617U
Application number: CN201920595626.XU
Authority: CN
Inventors: 朱婷; 赵艳
Original assignee: Hangzhou Dunhe Technology Co ltd
Current assignee: Wuxi Ningyi Environmental Safety Technology Co ltd
Priority date: 2019-04-28
Filing date: 2019-04-28
Publication date: 2020-04-10
Anticipated expiration: 2029-04-28

Abstract

The utility model discloses a high-efficient dust removal defogging device belongs to flue gas treatment technical field, and it includes torrent auxiliary tower and torrent main tower, and the flue gas gets into torrent auxiliary tower, because set up the atomizing nozzle on helical channel and the helical channel lateral wall in the torrent auxiliary tower, the atomizing nozzle can carry out preliminary purification to the flue gas without the dead angle, utilizes auxiliary tower swirler and main tower swirler to produce pneumatic whirl, and the gas-liquid fully contacts, carries out mass transfer reaction, clears away most sulphur containing component in the flue gas; the arrangement of the first demister, the second demister and the third demister promotes the separation of gas and liquid or dust under the action of centrifugal force, particularly a gradually-changed arc curve, promotes liquid drops or dust to be captured and removed by gradually-changed blade curved surfaces under the action of continuously-changed inertia force, and has high removal rate and small equipment resistance. The utility model discloses the creation collection desulfurization is removed dust as an organic whole, through torrent auxiliary tower and torrent main tower, has reached the smokeless dustless purpose of high-efficient desulfurization.

Description

High-efficient dust removal defogging device

Technical Field

The utility model relates to a defroster technical field among the desulphurization unit especially relates to a high-efficient dust removal defogging device.

Background

Along with the development of society, the emission of waste gas generated by industrial flue gas and waste incineration is increasing day by day, if industrial enterprises and waste incineration stations directly discharge the waste gas into the atmosphere without treating the waste gas, the content of toxic and harmful substances and fine particulate matters in the air is increased, the air is polluted, and the human health is influenced, so that the control of the pollution of the emission of the waste gas to the environment becomes one of the environmental problems which need to be solved urgently in the society at present.

The dust removal and demisting of the flue gas are the most common process sections in the flue gas purification process, the process routes are various, but the dust removal and demisting of the saturated wet flue gas containing a large amount of fog drops are realized at the same time, and especially, the selectable technical process routes and process equipment for efficient deep dust removal and demisting are fewer. The saturated wet flue gas containing a large amount of fog drops, which needs to be subjected to dust removal and defogging purification, is the clean flue gas adopting the wet desulphurization process.

The cyclone desulfurizing and dedusting tower has the basic working principle that after flue gas discharged from a boiler enters from the lower part of a cyclone, the flue gas rises by means of the rotation of the cyclone, simultaneously, absorption liquid flows downwards after being introduced from the upper part of the cyclone, the flue gas and the absorption liquid are rotationally cut and mixed at a high speed in the absorption tower, the liquid is continuously crushed by gas and is cut and thinned, the specific surface area of the liquid is increased, the contact surface of the gas and the liquid is enlarged, the specific surface area is dozens of times or even dozens of times higher than that of the common hollow tower wet desulfurizing and dedusting technology, the gas phase, the liquid phase and the solid phase are mixed, the mass transfer process between the gas phase and the liquid phase is enhanced, when the flue gas passes through a filter pipe, the absorption liquid is in an emulsified state, a suspended absorption liquid emulsion layer region is formed above the. When the emulsion layer is accumulated to a certain weight, the emulsion layer is discharged downwards, and the absorption liquid flowing down from the upper side replaces the emulsion layer to form a new emulsion layer, so that the new and old alternative emulsion layers keep higher desulfurization efficiency in continuous updating, and meanwhile, the new and old alternative emulsion layers can clear finer dust compared with a common boiler cyclone dust collector, and two functions of desulfurization and dust removal are integrated. But it is technically difficult to achieve the ultra-clean smoke emission standard.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-efficient dust removal defogging device can the gas-liquid fully contact, improves the efficiency that flue gas desulfurization removed dust.

Technical scheme

A high-efficiency dust-removing and demisting device comprises a turbulence secondary tower and a turbulence main tower, wherein the turbulence secondary tower is sequentially provided with a first water outlet, a first flue gas inlet and a first flue gas outlet at the bottom, the side wall and the top respectively, the turbulence main tower is provided with a second flue gas inlet and a second flue gas outlet at the side wall and the top respectively, the first flue gas outlet is connected to the second flue gas inlet through a flue pipe, the high-efficiency dust-removing and demisting device also comprises an air inlet pipe and a spiral channel which are arranged in the turbulence secondary tower, one end of the air inlet pipe is connected to the first flue gas inlet, the other end of the air inlet pipe is communicated with an inner cavity of the turbulence secondary tower, the spiral channel is spirally ascended around the air inlet pipe, and an atomizing nozzle is; the device also comprises a first demister, an auxiliary tower swirler and a spray pipe which are arranged in the turbulent auxiliary tower from bottom to top in sequence, wherein the spray pipe is provided with an atomizing nozzle; a main tower swirler, a spraying pipe, a second demister, a spraying pipe and a third demister are arranged in the turbulent flow main tower from bottom to top above the second flue gas outlet; the spray pipe with atomizing nozzle on the helical passage lateral wall all is connected with outside water piping, still be provided with the second delivery port on the bottom lateral wall of torrent main tower.

Preferably, the first demister, the second demister and the third demister comprise blade layers perpendicular to the air inlet direction, and the blade layers are formed by splicing demisting units; the defogging unit comprises a regular hexagonal frame and a blade fixed in the frame, wherein the blade is composed of two sections of fins and is in a ridge shape as a whole, and the fins are in an arc shape; the turbulence main tower is characterized in that two blades are uniformly arranged in the frames of the first demister and the second demister on the left and right sides, one blade is arranged in the frame of the third demister, and the blade of the third demister in the turbulence main tower is projected between the two blades of the second demister.

Preferably, the auxiliary tower cyclone consists of an auxiliary tower cyclone unit, and the auxiliary tower cyclone unit comprises a shell, a pipeline fixed at the center of the shell and a fan blade arranged between the shell and the pipeline; the upper end of the fan blade is connected with the shell, and the lower end of the fan blade is connected with the pipeline.

Preferably, the main tower cyclone consists of a main tower cyclone unit, the main tower cyclone unit comprises a shell, a through pipe fixed in the center of the shell and a fan blade arranged between the shell and the through pipe, the upper end of the fan blade is connected with the shell, and the lower end of the fan blade is connected with the through pipe; still be provided with cylindric ball storage chamber in the shell, both ends are provided with the through-hole about the ball storage chamber, the ball storage chamber passes through the through-hole communicates with each other with the outside, the indoor torrent ball that still prevents of ball storage, the diameter of torrent ball is greater than the aperture of through-hole.

Preferably, the spray pipes in the turbulent flow secondary tower are respectively arranged vertically and horizontally, and the vertically arranged spray pipes are positioned below the horizontally arranged spray pipes.

Compared with the prior art, the utility model provides a technical scheme has following advantage:

the utility model discloses a high-efficient dust removal defogging device includes torrent auxiliary tower and torrent main tower, and the flue gas gets into torrent auxiliary tower, because set up the atomizing nozzle on helical passage and the helical passage lateral wall in the torrent auxiliary tower, atomizing nozzle can carry out preliminary purification to the flue gas on the dead angle ground, then the flue gas loops through first defroster, auxiliary tower swirler, the shower, main tower swirler, shower second defroster, shower and third defroster, utilize auxiliary tower swirler and main tower swirler to produce pneumatic whirl, the gas-liquid fully contacts, carry out the mass transfer reaction, clear away most sulphur components in the flue gas; the arrangement of the first demister, the second demister and the third demister promotes the separation of gas and liquid or dust under the action of centrifugal force, particularly a gradually-changed arc curve, promotes liquid drops or dust to be captured and removed by gradually-changed blade curved surfaces under the action of continuously-changed inertia force, and has high removal rate and small equipment resistance. The utility model discloses the creation collection desulfurization is removed dust as an organic whole, through torrent auxiliary tower and torrent main tower, has reached the smokeless dustless purpose of high-efficient desulfurization.

Drawings

FIG. 1 is a schematic structural view of an efficient dust and mist removing device of the present invention;

FIG. 2 is a top view of the first demister and the second demister of the high-efficiency dust-removing and mist-removing device of the present invention;

FIG. 3 is a top view of the demister units of the first demister and the second demister of FIG. 2;

FIG. 4 is a top view of a third demister of the efficient dust-removing and mist-removing device of the present invention;

FIG. 5 is a top view of a demister unit of the third demister of FIG. 4;

FIG. 6 is a schematic structural view of an auxiliary tower cyclone unit of the efficient dust-removing and mist-removing device of the present invention;

fig. 7 is a schematic structural diagram of a main tower cyclone unit of the high-efficiency dust-removing and mist-removing device of the present invention.

Reference numerals

1-a turbulent secondary tower, 2-a turbulent primary tower, 3-a first water outlet, 4-a first flue gas inlet, 5-a first flue gas outlet, 6-a second flue gas inlet, 7-a second flue gas outlet, 8-a flue pipe, 9-an air inlet pipe, 10-a spiral channel, 11-an inner cavity, 12-an atomizing nozzle, 13-a first demister, 14-a secondary tower swirler, 15-a spray pipe, 16-a primary tower swirler, 17-a second demister, 18-a third demister, 19-a second water outlet, 20-a frame, 21-a blade, 22-a fin, 23-a shell, 24-a pipeline, 25-a fan blade, 26-a shell, 27-a through pipe, 28-a ball storage chamber and 29-a turbulent ball.

Detailed Description

The present invention will be further described with reference to the following specific embodiments, but the present invention is not limited to these specific embodiments. It will be recognized by those skilled in the art that the present invention encompasses all alternatives, modifications, and equivalents as may be included within the scope of the claims.

As shown in fig. 1-7, the utility model provides a technical solution: a high-efficiency dust-removing and demisting device comprises a turbulent flow secondary tower 1 and a turbulent flow main tower 2, wherein the bottom, the side wall and the top of the turbulent flow secondary tower 1 are respectively and sequentially provided with a first water outlet 3, a first flue gas inlet 4 and a first flue gas outlet 5, the side wall and the top of the turbulent flow main tower 2 are respectively provided with a second flue gas inlet 6 and a second flue gas outlet 7, the first flue gas outlet 5 is connected to the second flue gas inlet 6 through a flue pipe 8, the high-efficiency dust-removing and demisting device also comprises an air inlet pipe 9 and a spiral channel 10, the air inlet pipe 9 is arranged in the turbulent flow secondary tower 1, one end of the air inlet pipe 9 is connected to the first flue gas inlet 4, the other end of the air inlet pipe is communicated with an inner cavity 11 of the turbulent flow secondary tower 1, the spiral channel 10 is spirally arranged around the air; the device also comprises a first demister 13, an auxiliary tower swirler 14 and a plurality of layers of spray pipes 15 which are arranged in the turbulent flow auxiliary tower 1 from bottom to top in sequence, wherein the spray pipes 15 are provided with a plurality of atomizing nozzles 12; a main tower cyclone 16, a spray pipe 15, a second demister 17, a spray pipe 15 and a third demister 18 are arranged above the second flue gas outlet 7 in the turbulence main tower 2 from bottom to top; the spray pipe 15 and the atomizing nozzles 12 on the side wall of the spiral channel 10 are connected with an external water pipe, and a second water outlet 19 is further arranged on the side wall of the bottom of the turbulent flow main tower 2.

The utility model discloses a high-efficient dirt defogging device that takes off's theory of operation is: the filtered flue gas passes through a fan and then is sent out of the first flue gas inlet of the turbulent flow secondary tower 1. The flue gas enters the spiral channel 10 through the air inlet pipe 9, rises in the spiral channel 10 and is comprehensively and primarily purified by the atomizing nozzles 12 in the spiral channel 10. The flue gas passes through a first demister 13, an auxiliary tower cyclone 14 and a spray pipe 15 above the turbulent flow tower, the flue gas and the desulfurization slurry are stirred in a high-speed rotating mode above the auxiliary tower cyclone 14 to form emulsification, the high desulfurization efficiency is obtained, the clean flue gas passing through the auxiliary tower cyclone 14 enters a turbulent flow main tower 2 through a flue pipe 8 after passing through the desulfurization flue gas sprayed by two layers of spray pipes 15, and the cleaned slurry is discharged through a first water outlet 3 below the turbulent flow auxiliary tower 1. The flue gas enters the turbulence main tower 2 and enters the main tower cyclone 16 to carry out secondary turbulence movement, and then passes through the second demister 17 and the third demister 18 above to thoroughly clean the flue gas. And finally out of the second flue gas outlet 7.

The first demister 13, the second demister 17 and the third demister 18 comprise a blade 21 layer perpendicular to the air inlet direction, and the blade 21 layer is formed by splicing a plurality of demisting units; the defogging unit comprises a regular hexagonal frame 20 and a blade 21 fixed in the frame 20, wherein the blade 21 is composed of two sections of fins 22, the whole blade is in a roof ridge shape, and the fins 22 are in an arc shape; the structure of the first demister 13 is consistent with that of the second demister 17, two blades 21 are uniformly arranged on the left side, the right side and the left side in a frame 20 of the first demister, one blade 21 is arranged in the frame 20 of the third demister 18, after the first demister is specifically installed, the blades 21 of the third demister 18 are projected to the space between the two blades 21 of the second demister 17 in the turbulence main tower 2, so that the blades 21 of the second demister 17 and the third demister 18 are ensured to fully cover the gas flow cross section of the turbulence main tower 2 as far as possible, and liquid drops and dust are thoroughly captured.

In the present embodiment, an included angle is specifically provided between the vane 21 of the first demister 13 and the vane 21 of the second demister 17. That is, when the vanes 21 of the first demister 13 and the second demister 17 are disposed on the same plane, the vanes 21 are angled. In order to better improve the flue gas desulfurization and dust removal effects, the included angle between the blades 21 is set to be 45 degrees. The arc-shaped fins 22 form a winding fluid channel in the demister, after gas carrying fine particle size fog drops or fine dust particles enters the demister, the gas is blocked by the demisting blades 21 to form a rotational flow, the quality of the gas, the fog drops and the dust particles is different, the separation of the gas, liquid or dust under the action of centrifugal force is promoted, particularly, the gradually-changed arc-shaped curve is promoted, liquid drops or dust are caught and removed by the curved surfaces of the gradually-changed blades 21 under the action of continuously-changed inertia force, the removal rate is high, and the resistance of equipment is small.

The secondary tower cyclone 14 is composed of a plurality of secondary tower cyclone units, each secondary tower cyclone unit comprises a shell 23, a pipeline 24 fixed in the center of the shell 23, and at least two fan blades 25 arranged between the shell 23 and the pipeline 24, wherein the upper ends of the fan blades 25 are connected with the shell 23, and the lower ends of the fan blades 25 are connected with the pipeline 24.

The main tower cyclone 16 is composed of a plurality of main tower cyclone units, each main tower cyclone unit comprises a shell 26, a through pipe 27 fixed in the center of the shell 26, and at least two fan blades 25 arranged between the shell 26 and the through pipe 27, the upper ends of the fan blades 25 are connected with the shell 26, and the lower ends of the fan blades are connected with the through pipe 27; still be provided with cylindric ball storage chamber 28 in the shell 26, ball storage chamber 28 upper and lower both ends are provided with two at least through-holes, ball storage chamber 28 passes through the through-hole communicates with each other with the outside, still prevent in the ball storage chamber 28 that there are two at least torrent balls 29, the diameter of torrent ball 29 is greater than the aperture of through-hole.

In the above structure, the wind generated by the rotation of the blades 21 can act on the turbulent ball 29 in the ball storage chamber 28, so that the turbulent ball 29 makes a sharp irregular motion, and the efficiency of desulfurization and demisting is improved.

At least two spray pipes 15 in the turbulent auxiliary tower 1 are respectively arranged vertically and horizontally, and the vertically arranged spray pipes 15 are positioned below the horizontally arranged spray pipes 15.

Above-mentioned setting makes the flue gas constantly change flow direction when the shower 15, makes the particle pollutant in the flue gas collide with water smoke many times, and abundant water absorption is got heavy and with the water adhesion, and most pollutant is discharged from first delivery port 3 in being dissolved the water.

It is to be understood by persons skilled in the art that the embodiments of the present invention described above and shown in the drawings are given by way of example only and are not limiting of the present invention. The utility model discloses a function and structure principle can modify wantonly under the principle that does not deviate from above-mentioned show.

Claims

1. The utility model provides a high-efficient dust removal defogging device, includes the vice tower of torrent and torrent main tower, the vice tower of torrent has set gradually first delivery port, first exhanst gas inlet and first exhanst gas outlet respectively in bottom, lateral wall and top, the torrent main tower is provided with second exhanst gas inlet and second exhanst gas outlet respectively at its lateral wall and top, first exhanst gas outlet is through flue union coupling to second exhanst gas inlet, its characterized in that: the turbulent flow secondary tower is characterized by further comprising an air inlet pipe and a spiral channel, wherein the air inlet pipe and the spiral channel are arranged in the turbulent flow secondary tower, one end of the air inlet pipe is connected to the first flue gas inlet, the other end of the air inlet pipe is communicated with an inner cavity of the turbulent flow secondary tower, the spiral channel is spirally arranged around the air inlet pipe in an ascending mode, and an atomizing nozzle is arranged on the side wall of the spiral channel; the device also comprises a first demister, an auxiliary tower swirler and a spray pipe which are arranged in the turbulent auxiliary tower from bottom to top in sequence, wherein the spray pipe is provided with an atomizing nozzle; a main tower swirler, a spraying pipe, a second demister, a spraying pipe and a third demister are arranged in the turbulent flow main tower from bottom to top above the second flue gas outlet; the spray pipe with atomizing nozzle on the helical passage lateral wall all is connected with outside water piping, still be provided with the second delivery port on the bottom lateral wall of torrent main tower.

2. An efficient dust and mist removing device as claimed in claim 1, wherein: the first demister, the second demister and the third demister comprise blade layers vertical to the air inlet direction, and the blade layers are formed by splicing demisting units; the defogging unit comprises a regular hexagonal frame and a blade fixed in the frame, wherein the blade is composed of two sections of fins and is in a ridge shape as a whole, and the fins are in an arc shape; the turbulence main tower is characterized in that two blades are uniformly arranged in the frames of the first demister and the second demister on the left and right sides, one blade is arranged in the frame of the third demister, and the blade of the third demister in the turbulence main tower is projected between the two blades of the second demister.

3. An efficient dust and mist removing device as claimed in claim 1, wherein: the auxiliary tower cyclone consists of an auxiliary tower cyclone unit, and the auxiliary tower cyclone unit comprises a shell, a pipeline fixed at the center of the shell and a fan blade arranged between the shell and the pipeline; the upper end of the fan blade is connected with the shell, and the lower end of the fan blade is connected with the pipeline.

4. An efficient dust and mist removing device as claimed in claim 1, wherein: the main tower cyclone is composed of a main tower cyclone unit, the main tower cyclone unit comprises a shell, a through pipe fixed in the center of the shell and a fan blade arranged between the shell and the through pipe, the upper end of the fan blade is connected with the shell, and the lower end of the fan blade is connected with the through pipe; still be provided with cylindric ball storage chamber in the shell, both ends are provided with the through-hole about the ball storage chamber, the ball storage chamber passes through the through-hole communicates with each other with the outside, the indoor torrent ball that still prevents of ball storage, the diameter of torrent ball is greater than the aperture of through-hole.

5. An efficient dust and mist removing device as claimed in claim 1, wherein: the spray pipes in the turbulent flow auxiliary tower are respectively arranged vertically and horizontally, and the vertically arranged spray pipes are positioned below the horizontally arranged spray pipes.