CN215694888U - Primary and secondary cyclone dust collector - Google Patents

Abstract

The utility model relates to the technical field of dust collectors, in particular to a primary-secondary cyclone dust collector; the structure is simple, the air inlet mode is scientific and reasonable, the air pressure is reduced, and the smoke dust collecting efficiency in the smoke is improved; including first volute, a dust removal section of thick bamboo, the exhaust section of thick bamboo, the second volute, cylindricality tuber pipe and intercommunication tuber pipe, be provided with the air intake on the first volute, a dust removal section of thick bamboo and first volute fixed connection, a dust removal section of thick bamboo and the junction of first volute are provided with the intercommunication mouth, the intercommunication mouth is with the inside intercommunication of a dust removal section of thick bamboo and first volute, exhaust section of thick bamboo fixed mounting is in the bottom of second volute, inside and the inside intercommunication of second volute of an exhaust section of thick bamboo, cylindricality tuber pipe bottom stretches into to upper portion in the dust removal section of thick bamboo from a dust removal section of thick bamboo top, the exhaust section of thick bamboo bottom is provided with sealing baffle, the exhaust section of thick bamboo outer wall is provided with the air outlet with the inside intercommunication of an exhaust section of thick bamboo.

Description

Primary and secondary cyclone dust collector

Technical Field

The utility model relates to the technical field of dust collectors, in particular to a primary-secondary cyclone dust collector.

Background

As is well known, the primary-secondary cyclone dust collector is a device for removing dust from flue gas; publication (bulletin) No. CN201260992Y discloses a high-efficiency energy-saving cyclone dust collector, which mainly comprises an outlet volute, a conical exhaust pipe with spiral fins, an inlet volute, a cyclone cylinder, an underflow pipe, a broken vortex device, a vortex stabilizer, a crescent bypass and the like. The vortex breaking device is sleeved in the cyclone cylinder, the top end of the vortex breaking device is opposite to and close to the inlet of the exhaust pipe, the crescent bypass surrounds the outer surface of the cyclone cylinder according to a spiral curve, and the outlet and the inlet of the crescent bypass are communicated with the inner cavity of the cyclone cylinder; the vortex stabilizer is arranged at the inlet of the bottom flow pipe at the bottom of the inner cavity of the cyclone body. Because the spiral fin conical exhaust pipe and the like are designed by additionally arranging the vortex breaking device, the vortex stabilizing device and the crescent bypass, the amplitude of vortex cores is reduced, the kinetic energy dissipation of the smoke flow during rotation is reduced, the integral energy consumption of the system is further reduced, the back mixing of collected fine particles in the ash hopper is inhibited, and the collection efficiency of the fine particles in the smoke is improved. Through the design, the utility model has the advantages of high efficiency and energy saving; however, the structure is complex, the air pressure of the flue gas entering the cyclone dust collector is high, the falling amount of the smoke dust in the flue gas is small under the action of cyclone flow, the dust content at the air outlet is high, the dust removal effect is influenced, and certain use limitation is realized.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides the primary-secondary cyclone dust collector which has a simple structure, is scientific and reasonable in air inlet mode, reduces air pressure and improves the smoke dust collecting efficiency in smoke.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: the dust removing device comprises a first volute body, a dust removing cylinder, an air exhaust cylinder, a second volute body, a cylindrical air pipe and a communicating air pipe, wherein an air inlet is formed in the first volute body, the dust removing cylinder is fixedly connected with the first volute body, a communicating port is formed in the joint of the dust removing cylinder and the first volute body and is used for communicating the dust removing cylinder with the interior of the first volute body, the air exhaust cylinder is fixedly arranged at the bottom of the second volute body, the interior of the air exhaust cylinder is communicated with the interior of the second volute body, the bottom of the cylindrical air pipe extends into the upper portion of the interior of the dust removing cylinder from the top of the dust removing cylinder, the second volute body is fixedly arranged at the top of the cylindrical air pipe, the interior of the cylindrical air pipe is communicated with the interior of the second volute body, the communicating air pipe extends into the interior of the second volute body from the tangential direction of the outer wall of the second volute body, the input end of the communicating air pipe is communicated with the interior of the second volute body, and the output end of the communicating air pipe is communicated with the interior of the first volute body, the bottom of the exhaust cylinder is provided with a sealing baffle, and the outer wall of the exhaust cylinder is provided with an air outlet communicated with the inside of the exhaust cylinder.

Preferably, the device also comprises a first air volume adjusting mechanism and a second air volume adjusting mechanism, wherein the first air volume adjusting mechanism is arranged at a communicating port where the dust removing cylinder and the first volute body are connected and supported, the second air volume adjusting mechanism is arranged at a communicating air pipe, the first air volume adjusting mechanism and the second air volume adjusting mechanism respectively comprise a rotating shaft and a wind shield fixedly arranged on the rotating shaft, and the wind shields on the first air volume adjusting mechanism and the second air volume adjusting mechanism are respectively matched with the communicating port and the inside of the communicating air pipe.

Preferably, the dust removing device further comprises a limiting bolt, a deflector rod is fixedly mounted on the rotating shaft, and the rotating shafts on the first air quantity adjusting mechanism and the second air quantity adjusting mechanism are fixedly connected with the bottom wall of the dust removing cylinder and the outer wall of the communicated air pipe through the limiting bolt and the deflector rod respectively.

Preferably, the bottom of the dust removal cylinder is in a conical hopper shape.

Preferably, the bottom in the dust removing cylinder is provided with a conical vortex stabilizer.

(III) advantageous effects

Compared with the prior art, the utility model provides a primary-secondary cyclone dust collector which has the following beneficial effects: the primary-secondary cyclone dust collector comprises a first volute body, a second volute body, a first exhaust pipe, a second exhaust pipe, a first spiral shell body, a second spiral shell body, a first exhaust pipe, a second spiral shell body, a first spiral shell body, a second spiral shell body, a third spiral shell body, a fourth spiral shell body and a fourth spiral shell body, wherein smoke is blown into the first volute body along the tangential direction of the inner wall of the first volute body through an air inlet, the smoke forms a spiral flow in the first volute body under the action of the spiral shell body, the smoke flows along the inner wall of the first volute body along the tangential direction, the inner wall of the first volute body, the first volute body forms a spiral flow in the first volute body, the first volute body forms a spiral flow, the spiral flow in the first volute body forms a spiral flow towards the first volute body, the first spiral shell body forms a spiral flow towards the bottom to the bottom of the second spiral shell body to reduce the dust content of the second spiral shell body to reduce the dust in the second spiral shell body to reduce the dust content of the dust in the second spiral shell body to reduce the dust content of the second spiral shell body, the second spiral shell body to reduce the dust content of the dust collector, the dust collector to reduce the dust in the dust collector, and to reduce the dust collector to reduce the dust collector to reduce dust collector, and to reduce the dust collector to reduce the dust collector to reduce the dust collector to reduce dust collector, and the net gas is downward whirl and is advanced under the effect of low pressure swirl, and the net gas is discharged through the air outlet, and flue gas after the dust removal processing and new flue gas intensive mixing have reduced the dust content of flue gas, have reduced the air inlet wind pressure simultaneously, and the flue gas secondary after handling the dust removal gets into to the dust removal section of thick bamboo in and carries out the dust removal processing, its simple structure, air inlet mode scientific and reasonable reduces the wind pressure, improves smoke and dust entrapment efficiency in the flue gas.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2 in accordance with the present invention;

FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 2 in accordance with the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 1;

in the drawings, the reference numbers: 1. a first volute body; 2. a dust removal cylinder; 3. an exhaust duct; 4. a second volute housing; 5. a cylindrical air duct; 6. the air pipe is communicated; 7. an air inlet; 8. a communication port; 9. sealing the baffle; 10. an air outlet; 11. a rotating shaft; 12. a wind deflector; 13. a limit bolt; 14. a deflector rod; 15. a conical vortex stabilizer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the primary-secondary cyclone dust collector of the present invention comprises a first volute 1, a dust-collecting cylinder 2, an air-discharging cylinder 3, a second volute 4, a cylindrical air pipe 5 and a communicating air pipe 6, wherein the first volute 1 is provided with an air inlet 7, the dust-collecting cylinder 2 is fixedly connected with the first volute 1, a connecting port 8 is arranged at the connecting position of the dust-collecting cylinder 2 and the first volute 1, the connecting port 8 connects the dust-collecting cylinder 2 and the first volute 1, the air-discharging cylinder 3 is fixedly arranged at the bottom of the second volute 4, the air-discharging cylinder 3 is connected with the second volute 4, the bottom of the cylindrical air pipe 5 extends into the upper part of the dust-collecting cylinder 2 from the top of the dust-collecting cylinder 2, the second volute 4 is fixedly arranged at the top of the cylindrical air pipe 5, the cylindrical air pipe 5 is connected with the inside of the second volute 4, the communicating air pipe 6 extends into the second volute 4 from the outer wall of the second volute 4 in a tangential direction, the input end of the communicating air pipe 6 is communicated with the inside of the second volute body 4, the output end of the communicating air pipe 6 is communicated with the inside of the first volute body 1, the bottom of the exhaust cylinder 3 is provided with a sealing baffle 9, and the outer wall of the exhaust cylinder 3 is provided with an air outlet 10 communicated with the inside of the exhaust cylinder 3; the flue gas is blown into the first volute body 1 along the tangential direction of the inner wall of the first volute body 1 through the air inlet 7, the flue gas forms rotational flow in the first volute body 1 and travels along the inner wall of the first volute body 1 under the action of the volute body shape of the first volute body 1, the flue gas enters the dust removing cylinder 2 through the communication port 8, the air inlet pressure of the flue gas is reduced, the flue gas performs rotational flow motion in the dust removing cylinder 2, dust particles in the flue gas settle towards the bottom of the dust removing cylinder 2 under the rotational flow effect, so that the dust content in the flue gas is reduced, the flue gas after dust removing treatment enters the second volute body 4 through the cylindrical air pipe 5 and flows back into the first volute body 1 through the communication air pipe 6, the flue gas after dust removing treatment vertically enters the first volute body 1, the flue gas after dust removing meets the entering flue gas, a low-pressure vortex is formed at the central axis of the exhaust cylinder 3 at the moment, most of the dust travels along the inner wall of the first volute body 1 under the action of centrifugal force, and the net gas is downward the whirl and is advanced under the effect of low pressure swirl, and the net gas is discharged through air outlet 10, and flue gas after the dust removal processing and new flue gas intensive mixing have reduced the dust content of flue gas, have reduced the air inlet wind pressure simultaneously, and the flue gas secondary after handling the dust removal gets into to dust removal section of thick bamboo 2 in and carries out the dust removal processing, its simple structure, air inlet mode scientific and reasonable reduces the wind pressure, improves smoke and dust entrapment efficiency in the flue gas.

The primary-secondary cyclone dust collector also comprises a first air quantity adjusting mechanism and a second air quantity adjusting mechanism, wherein the first air quantity adjusting mechanism is arranged at a communication port 8 of a connecting support of the dust removing cylinder 2 and the first volute body 1, the second air quantity adjusting mechanism is arranged at a communicated air pipe 6, the first air quantity adjusting mechanism and the second air quantity adjusting mechanism respectively comprise a rotating shaft 11 and a wind shield 12 fixedly arranged on the rotating shaft 11, and the wind shields 12 on the first air quantity adjusting mechanism and the second air quantity adjusting mechanism are respectively matched with the inside of the communication port 8 and the communicated air pipe 6; through rotating the pivot 11 to make deep bead 12 rotate and adjust, make the amount of wind through intercommunication mouth 8 or intercommunication tuber pipe 6 department change, adjust the amount of wind and the wind pressure that enters into in the section of thick bamboo 2 of removing dust, make the dust in the flue gas in the section of thick bamboo 2 of removing dust be in the cyclone separation state of preferred, further improve dust removal effect.

The primary-secondary cyclone dust collector also comprises a limit bolt 13, a deflector rod 14 is fixedly arranged on the rotating shaft 11, and the rotating shafts 11 on the first air volume adjusting mechanism and the second air volume adjusting mechanism are respectively and fixedly connected with the bottom wall of the dust collection cylinder 2 and the outer wall of the communicated air pipe 6 through the limit bolt 13 and the deflector rod 14; the rotating shaft 11 can be adjusted in a labor-saving manner by rotating the shifting rod 14, and the limiting bolt 13 can limit the adjusted shifting rod 14, so that the situation that the rotating shaft 11 rotates automatically after the adjustment is finished is effectively prevented.

In the primary-secondary cyclone dust collector, the bottom of the dust removing cylinder 2 is in a conical hopper shape; through the conical hopper-shaped arrangement at the bottom of the dust removing cylinder 2, the dust falling into the bottom of the dust removing cylinder 2 can be discharged after being gathered, and the gathering of the dust at the bottom of the dust removing cylinder 2 is reduced.

In the primary-secondary cyclone dust collector, the conical vortex stabilizer 15 is arranged at the bottom in the dust collection cylinder 2; through the setting of the stable whirlpool ware 15 of toper, can make in the dust removal section of thick bamboo 2 dust to the 2 inner walls of dust removal section of thick bamboo department dispersions, reduce the wind pressure of 2 bottoms of dust removal section of thick bamboo, make 2 interior whirl of dust removal section of thick bamboo be in stable state, do benefit to the smooth discharge of 2 interior dusts of dust removal section of thick bamboo.

When the dust removing device is used, smoke is blown into the first volute body 1 through the air inlet 7 along the tangential direction of the inner wall of the first volute body 1, the smoke forms rotational flow in the first volute body 1 and travels along the inner wall of the first volute body 1 under the action of the volute body of the first volute body 1, the smoke enters the dust removing cylinder 2 through the communication port 8, the air inlet pressure of the smoke is reduced, the smoke performs rotational flow motion in the dust removing cylinder 2, dust particles in the smoke settle towards the bottom of the dust removing cylinder 2 under the rotational flow effect, so that the dust content in the smoke is reduced, the smoke after dust removing treatment enters the second volute body 4 through the cylindrical air pipe 5 and flows back into the first volute body 1 through the communication air pipe 6, the smoke after dust removing treatment vertically enters the first volute body 1, the smoke after dust removing meets the entered smoke, a low-pressure vortex is formed at the central axis of the air exhaust cylinder 3, most of the dust travels along the inner wall of the first volute body 1 under the action of rotational flow centrifugal force, the clean gas moves downwards in a rotational flow mode under the action of the low-pressure vortex, the clean gas is discharged through the air outlet 10, the flue gas after dust removal treatment is fully mixed with the newly-fed flue gas, the dust content of the flue gas is reduced, the air inlet pressure is reduced, the flue gas after dust removal treatment enters the dust removal cylinder 2 for secondary dust removal treatment, the structure is simple, the air inlet mode is scientific and reasonable, the air pressure is reduced, and the smoke dust collection efficiency in the flue gas is improved; the wind shield 12 is adjusted by rotating the rotating shaft 11, so that the air quantity passing through the communication port 8 or the communication air pipe 6 is changed, the air quantity and the air pressure entering the dust removing cylinder 2 are adjusted, the dust in the flue gas in the dust removing cylinder 2 is in a better cyclone separation state, and the dust removing effect is further improved; the rotating shaft 11 can be adjusted in a labor-saving manner by rotating the shifting lever 14, and the limiting bolt 13 can limit the shifting lever 14 after adjustment, so that the rotating shaft 11 can be prevented from rotating automatically after adjustment is finished; through the conical hopper-shaped arrangement at the bottom of the dust removing cylinder 2, the dust falling into the bottom of the dust removing cylinder 2 can be collected and discharged, and the collection of the dust at the bottom of the dust removing cylinder 2 is reduced; through the setting of the stable whirlpool ware 15 of toper, can make in the dust removal section of thick bamboo 2 dust to the 2 inner walls of dust removal section of thick bamboo department dispersions, reduce the wind pressure of 2 bottoms of dust removal section of thick bamboo, make 2 interior whirl of dust removal section of thick bamboo be in stable state, do benefit to the smooth discharge of 2 interior dusts of dust removal section of thick bamboo.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A primary and secondary cyclone dust collector is characterized by comprising a first volute body (1), a dust collection barrel (2), an exhaust barrel (3), a second volute body (4), a cylindrical air pipe (5) and a communicating air pipe (6), wherein an air inlet (7) is formed in the first volute body (1), the dust collection barrel (2) is fixedly connected with the first volute body (1), a communicating port (8) is formed in the joint of the dust collection barrel (2) and the first volute body (1), the communicating port (8) is used for communicating the dust collection barrel (2) with the first volute body (1), the air exhaust barrel (3) is fixedly arranged at the bottom of the second volute body (4), the interior of the air exhaust barrel (3) is communicated with the interior of the second volute body (4), the bottom of the cylindrical air pipe (5) extends into the upper portion of the dust collection barrel (2) from the top of the dust collection barrel (2), and the second volute body (4) is fixedly arranged at the top of the cylindrical air pipe (5), the air conditioner is characterized in that the interior of the cylindrical air pipe (5) is communicated with the interior of the second volute body (4), the communicated air pipe (6) extends into the second volute body (4) from the outer wall of the second volute body (4) in a tangential mode, the input end of the communicated air pipe (6) is communicated with the interior of the second volute body (4), the output end of the communicated air pipe (6) is communicated with the interior of the first volute body (1), a sealing baffle plate (9) is arranged at the bottom of the exhaust barrel (3), and an air outlet (10) communicated with the interior of the exhaust barrel (3) is formed in the outer wall of the exhaust barrel (3).

2. The primary-secondary cyclone dust collector of claim 1, further comprising a first air volume adjusting mechanism and a second air volume adjusting mechanism, wherein the first air volume adjusting mechanism is installed at a communication port (8) where the dust collection cylinder (2) and the first volute body (1) are connected and supported, the second air volume adjusting mechanism is installed at a communication air pipe (6), the first air volume adjusting mechanism and the second air volume adjusting mechanism both comprise a rotating shaft (11) and a wind shield (12) fixedly installed on the rotating shaft (11), and the wind shields (12) on the first air volume adjusting mechanism and the second air volume adjusting mechanism are respectively fitted with the inside of the communication port (8) and the inside of the communication air pipe (6).

3. The primary-secondary cyclone dust collector as claimed in claim 2, further comprising a limit bolt (13), wherein a deflector rod (14) is fixedly mounted on the rotating shaft (11), and the rotating shafts (11) on the first air volume adjusting mechanism and the second air volume adjusting mechanism are fixedly connected with the bottom wall of the dust removing cylinder (2) and the outer wall of the communicating air pipe (6) through the limit bolt (13) and the deflector rod (14), respectively.

4. The primary-secondary cyclone dust collector as claimed in claim 3, wherein the bottom of the dust collecting cylinder (2) is in a conical hopper shape.

5. The primary-secondary cyclone dust collector as claimed in claim 4, wherein the bottom of the dust collection cylinder (2) is provided with a conical vortex stabilizer (15).

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