CN112619335A - Dust collector that can clear up filter screen automatically - Google Patents

Abstract

The invention provides a dust removal device capable of automatically cleaning a filter screen, and belongs to the technical field of environment-friendly equipment. The dust collection and prevention device comprises an air inlet air guide tube, an air outlet air guide tube and a filter screen positioned between the air inlet air guide tube and the air outlet air guide tube, wherein a notch facing one side of the filter screen is formed in a dust collection and prevention cover, a dust collection rod is fixedly arranged in the dust collection and prevention cover, two spiral dust removal sheets which are respectively positioned on two sides of the middle point of the dust collection rod are connected to the dust collection rod in a rotating mode, the dust removal sheets are connected to the inner wall of the dust collection and prevention cover in a rotating mode, a gear is arranged at the outer end of the dust collection rod, a gear ring matched with the gear is arranged on the air outlet air guide tube, a plurality of corona rods are arranged in the; the two ends of the dust-accumulation windproof cover are respectively provided with a row of slag outlets, the dust-accumulation windproof cover is connected with a driving mechanism for driving the dust-accumulation windproof cover to rotate, and the two dust-accumulation pieces are opposite in spiral direction. The invention has the advantages of realizing the maintenance-free of the filter screen and the like.

Description

Dust collector that can clear up filter screen automatically

Technical Field

The invention belongs to the technical field of environmental protection equipment, and relates to a dust removal device capable of automatically cleaning a filter screen.

Background

Dust collecting equipment is the environmental protection equipment that industrial and mining enterprises used commonly, when the filter screen filters and is used for removing dust, in order to improve filtration efficiency, the filtration pore aperture of filter screen should not be too little when once only removing dust, otherwise can shorten the maintenance cycle greatly, but the dust of the different particle diameters of filtering one by one through the mode of multistage filtration, this kind of mode makes the structure comparatively complicated, and maintains dismouting, clearance etc. that the filter screen relates to equipment, influences the continuous operation of equipment, and the human cost is also higher.

When the filter screen filters solid particles in waste gas, the filter screen is easily blocked due to the effect of air pressure, although the filter screen is periodically maintained and cleaned, the filter efficiency and the filter quality are also seriously affected, and the aim of avoiding maintenance is achieved by synchronously cleaning filter media such as the filter screen and the like, which is always a direction and a difficult problem of research in the industry.

Disclosure of Invention

The invention aims to provide a dust removal device capable of automatically cleaning a filter screen, aiming at the problems in the prior art, and the technical problem to be solved by the invention is how to realize maintenance-free of the filter screen.

The purpose of the invention can be realized by the following technical scheme: a dust removal device capable of automatically cleaning a filter screen is characterized by comprising an air inlet air duct, an air outlet duct and a filter screen positioned between the air inlet air duct and the air outlet duct, wherein the filter screen is installed on the inner wall of the inlet of the air outlet duct, the air inlet air duct is detachably connected with the air outlet duct, the outlet of the air inlet air duct is rotatably connected with a lantern ring, a strip-shaped dust-collecting windshield is fixedly arranged on the lantern ring, the dust-collecting windshield is provided with a notch facing one side of the filter screen, a dust collecting rod is fixedly arranged in the dust-collecting windshield, two spiral dust-driving sheets respectively positioned on two sides of the middle point of the dust collecting rod are rotatably connected onto the dust collecting rod, the dust-driving sheets are rotatably connected onto the inner wall of the dust-collecting windshield, the outer end of the dust collecting rod is provided with a gear, and a gear ring, a plurality of corona rods are arranged in the dust-accumulation windproof cover, the corona rods are connected with the negative electrode of a high-voltage power supply, and the dust collecting rods are connected with the positive electrode of the high-voltage power supply; the both ends of laying dust windshield have a row of cinder notch respectively, the laying dust windshield links to each other through the rotatory actuating mechanism of a drive laying dust windshield, and the spiral opposite direction of two drive dirt pieces.

Furthermore, actuating mechanism is including fixing the pivot on the laying dust wind cap, the fixed impeller that is located the air duct of giving vent to anger that is provided with in the pivot, the center department of filter screen has one and dodges the perforation of pivot.

Alternatively, the driving mechanism comprises a rotating shaft fixed on the dust-proof cover, and the rotating shaft is connected with an output shaft of a driving motor.

As another option, actuating mechanism is including fixing the pivot on the laying dust wind cap, the fixed impeller that is located the air duct of giving vent to anger that is provided with in the pivot, the center department of filter screen has one and dodges the perforation of pivot, the pivot links to each other with a driving motor's output shaft, the rotatory pressure increase that can make waste gas pass through the filter screen of impeller.

Furthermore, the dust collecting windshield is fixedly provided with two arc-shaped shielding strips, the two shielding strips are respectively positioned at two sides of the dust collecting windshield, and the shielding strips are used for shielding avoiding gaps between the air inlet and outlet air guide tubes due to the dust collecting windshield.

Furthermore, the lantern ring is connected with the outer wall surface of the air inlet air guide pipe through a bearing.

Furthermore, a plurality of rotary drums are connected to the dust collecting rod in a rotating mode, the rotary drums are fixedly connected with the dust repelling pieces, and the rotary drums are connected to the inner wall of the dust accumulation wind shield in a rotating mode.

Furthermore, the outer wall of the air inlet and guide tube is provided with a first mounting ring, the outer wall of the air outlet and guide tube is provided with a second mounting ring, a plurality of bolts are fixedly arranged on the second mounting ring, a plurality of mounting holes corresponding to the bolts in a one-to-one mode are formed in the first mounting ring, and locking nuts are connected to the bolts in a threaded mode.

Further, corona rod has two, and two corona rods are located the both sides of collection dirt pole respectively, corona rod is close to the filter screen.

When waste gas passes through the filter screen, the dust is amassed and is existed in the side of admitting air of filter screen, because the rotation of laying dust wind cap makes spiral helicine dirt piece that drives also rotate on the dust collecting rod, makes the dust of adhesion on the dust collecting rod drive the effect down and remove to the orientation of arranging the cinder notch on the laying dust wind cap, and finally discharges the dust.

The rotation of laying dust wind cap can cover the filter screen side universe that admits air, if laying dust wind cap certain speed lasts the rotation, can make the filter screen be in like new state all the time, realizes non-maintaining, can arrange the sediment automatically moreover.

The electrostatic dust collection structure comprises: the positive pole of high voltage power supply links to each other with collection dirt pole, and the corona rod of its both sides links to each other with high voltage power supply's negative pole, forms the discharge area between corona rod and collection dirt pole, and this area is located the filter screen and admits air the side, and is located between two corona rods of collection dirt pole both sides, makes the dust can be adsorbed by collection dirt pole.

The rotational speed several times of the heliciform drives the rotation speed of dirt wind cap of dirt piece, makes the high-speed rotatory drive dirt piece can form the dirt air current of leading from inside to outside in the dirt wind cap, and this air current can drive to row cinder notch one side to the particulate matter that can not be adsorbed dust category to discharged, that is to say that this device can realize the collection and the clearance of the full type granule of certain particle diameter.

Set up the impeller in the pivot, this impeller is located the air duct of giving vent to anger, and under the condition that does not set up driving motor, the air current can be by make full use of, and the air current effect is ordered about the impeller rotation down, and the impeller rotation drives the pivot rotatory, though has negative effects to the circulation speed of air current, but its can make full use of waste gas, avoids setting up equipment such as driving motor and causes new dust removal burden. The impeller is arranged in the air outlet gas guide pipe, and the gas in the area is filtered, so that the scale deposit in the rotating process of the impeller is greatly reduced.

The mode that sets up driving motor can control the rotational speed of laying dirt wind cap to make the air current drive dirt effect more obvious, more controllable.

Set up the mode of driving motor and impeller, can make the impeller that driving motor drove form the negative pressure in the air duct of giving vent to anger, make waste gas pass through the efficiency of filter screen higher to improve filtration efficiency, under the effect that has laying dust windshield and dust collecting rod, great through-flow efficiency can ensure filtering quality.

Although the fixed strip that shelters from that sets up on laying dust windshield can not realize admitting air the air duct and giving vent to anger sealed between the air duct, however, because the air current direction is the axis direction, its clearance department sets up the strip that shelters from and keeps away to ensure that there is not more exhaust emission in this clearance with reducing the cross-section of ventilating, can also set up plane bearing and realize this regional sealed, set up the plane bearing who is connected with the air duct that admits air and the air duct of giving vent to anger respectively in the both sides of sheltering from the strip promptly, the strip that shelters from is unanimous with the thickness of laying dust.

The detachable connection structure that sets up between the air duct of admitting air and the air duct of giving vent to anger can be convenient for the dismouting of filter screen and laying dust wind cap, also can adjust the depth of engagement of gear and ring gear to adjust the clearance between laying dust wind cap and the filter screen.

As the adaptive setting, the dust-collecting windshield, the air inlet duct, the air outlet duct, the filter screen and the like are all made of insulating materials, the principle of the electrostatic dust removal mechanism is taken as the prior art, only the outline connection mode of the electrostatic dust removal mechanism is disclosed, and the structures of the high-voltage power supply, such as an external required electric brush, a rectification voltage transformation required by the high-voltage power supply and the like are not repeated.

Drawings

Fig. 1 is a schematic structural view of a dust removing device.

FIG. 2 is a schematic view of the dust-proof cover, the collar and the shielding strip.

FIG. 3 is a sectional view of the dust cap.

Fig. 4 is a schematic perspective view of the air outlet tube.

In the figure, 1, an air inlet duct; 11. a collar; 2. an air outlet duct; 3. filtering with a screen; 4. a dust-proof windshield; 41. a notch; 42. a dust collecting rod; 43. a dust-removing sheet; 44. a gear; 45. a ring gear; 46. a corona rod; 47. a slag discharge port; 48. a masking strip; 5. a rotating shaft; 51. an impeller; 61. mounting a ring I; 62. a second mounting ring; 63. and (4) bolts.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 4, the dust collecting device comprises an air inlet/outlet duct 1, an air outlet/outlet duct 2, and a filter screen 3 located between the air inlet/outlet duct 1 and the air outlet/outlet duct 2, wherein the filter screen 3 is mounted on an inner wall of an inlet of the air outlet/outlet duct 2, the air inlet/outlet duct 1 is detachably connected to the air outlet/outlet duct 2, an outlet of the air inlet/outlet duct 1 is rotatably connected to a collar 11, the collar 11 is fixedly provided with a strip-shaped dust collecting windshield 4, the dust collecting windshield 4 has a notch 41 facing one side of the filter screen 3, a dust collecting rod 42 is fixedly arranged in the dust collecting windshield 4, the dust collecting rod 42 is rotatably connected to two spiral dust removing pieces 43 respectively located at two sides of a midpoint of the dust collecting rod 42, the dust removing pieces 43 are rotatably connected to an inner wall of the dust collecting windshield 4, an outer end of the dust collecting rod 42 is provided with a gear 44, the air, the corona rod 46 is connected with the negative pole of a high-voltage power supply, and the dust collecting rod 42 is connected with the positive pole of the high-voltage power supply; the two ends of the dust-proof and wind-proof cover 4 are respectively provided with a row of slag outlets 47, the dust-proof and wind-proof cover 4 is connected with a driving mechanism for driving the dust-proof and wind-proof cover 4 to rotate, and the spiral directions of the two dust-proof pieces 43 are opposite.

The driving mechanism comprises a rotating shaft 5 fixed on the dust-retention windshield 4, an impeller 51 positioned in the air outlet and guide tube 2 is fixedly arranged on the rotating shaft 5, and a through hole avoiding the rotating shaft 5 is formed in the center of the filter screen 3.

The dust-collecting windshield 4 is fixedly provided with two arc-shaped shielding strips 48, the two shielding strips 48 are respectively positioned at two sides of the dust-collecting windshield 4, and the shielding strips 48 are used for shielding avoiding gaps between the air inlet and outlet air guide tubes 1 and 2 due to the dust-collecting windshield 4.

The lantern ring 11 is connected with the outer wall surface of the air inlet and guide pipe 1 through a bearing.

The dust collecting rod 42 is connected with a plurality of rotary drums in a rotating way, the rotary drums are fixedly connected with the dust-driving sheet 43, and the rotary drums are connected on the inner wall of the dust-collecting windshield 4 in a rotating way.

The outer wall of the air inlet and guide tube 1 is provided with a first mounting ring 61, the outer wall of the air outlet and guide tube 2 is provided with a second mounting ring 62, the second mounting ring 62 is fixedly provided with a plurality of bolts 63, the first mounting ring 61 is provided with a plurality of mounting holes in one-to-one correspondence with the bolts 63, and the bolts 63 are in threaded connection with locking nuts.

Two corona rods 46 are provided, two corona rods 46 are respectively arranged at two sides of the dust collecting rod 42, and the corona rods 46 are close to the filter screen 3.

When the exhaust gas passes through the filter screen 3, dust accumulates on the intake side of the filter screen 3, and the rotation of the dust collection cover 4 causes the spiral dust removal piece 43 to rotate on the dust collection rod 42, so that the dust adhered to the dust collection rod 42 moves in the direction of the slag discharge port 47 on the dust collection cover 4 by the driving action of the dust removal piece 43, and finally the dust is discharged.

The rotation of laying dust wind cap 4 can cover filter screen 3 side global that admits air, if laying dust wind cap 4 constant speed lasts the rotation one by one, can make filter screen 3 be in like new state all the time, realizes non-maintaining, can arrange the sediment automatically moreover.

The electrostatic dust collection structure comprises: the positive pole of the high voltage power supply is connected with the dust collecting rod 42, the corona rods 46 at two sides of the high voltage power supply are connected with the negative pole of the high voltage power supply, a discharge area is formed between the corona rods 46 and the dust collecting rod 42, and the discharge area is positioned at the air inlet side of the filter screen 3 and between the two corona rods 46 at two sides of the dust collecting rod 42, so that dust can be adsorbed by the dust collecting rod 42.

The rotational speed of spiral helicine drive dirt piece 43 is several times the rotational speed of laying dirt wind cap 4, makes high-speed rotatory drive dirt piece 43 can form the dirt air current of leading from inside to outside in laying dirt wind cap 4, and this air current can drive to row cinder notch 47 one side to the particulate matter that can not be adsorbed dust classification to discharged, that is to say this device can realize the collection and the clearance of the full type granule of certain particle diameter.

Set up impeller 51 on pivot 5, this impeller 51 is located give vent to anger the air duct 2, and under the condition that does not set up driving motor, the air current can be by make full use of, and the air current effect is driven impeller 51 rotatory down, and impeller 51 is rotatory to drive pivot 5 rotatory, though there is the negative effect to the circulation speed of air current, but its can make full use of waste gas, avoids setting up equipment such as driving motor and causes new dust removal burden. The impeller 51 is arranged in the outlet gas-guide tube 2, and the gas in the area is filtered, so that the scale deposit in the rotating process of the impeller 51 is greatly reduced.

The mode that sets up driving motor can control the rotational speed of laying dirt windshield 4 to make the air current drive dirt effect more obvious, more controllable.

Set up driving motor and impeller 51's mode, can make driving motor drive impeller 51 form the negative pressure in giving vent to anger air duct 2 under, make waste gas pass through the efficiency of filter screen 3 higher to improve filtration efficiency, under the effect that has laying dust windshield 4 and dust collecting rod 42, great through-flow efficiency can ensure filtering quality.

Although the fixed blocking strip 48 that sets up on laying dust windshield 4 can not realize admitting air the air duct 1 and giving vent to anger the sealed between the air duct 2, however, because the air current direction is the axis direction, its clearance department sets up blocking strip 48 and keeps away and can guarantee that there is more exhaust emission in this clearance can be ensured in reducing the cross-section of ventilating, can also set up plane bearing and realize this regional sealed, set up the plane bearing who is connected with the air duct 1 that admits air and the air duct 2 that gives vent to anger respectively in the both sides that shelter from strip 48 promptly, the thickness that shelters from strip 48 and laying dust windshield 4 is unanimous.

The detachable connection structure that sets up between air inlet duct 1 and the air outlet duct 2 can be convenient for the dismouting of filter screen 3 and laying dust wind cap 4, also can adjust the depth of engagement of gear 44 and ring gear 45 to adjust the clearance between laying dust wind cap 4 and the filter screen 3.

As the adaptive setting, the dust-collecting windshield 4, the air inlet duct 1, the air outlet duct 2, the filter screen 3 and the like are all made of insulating materials, the principle of the electrostatic dust removal mechanism is taken as the prior art, only the outline connection mode of the electrostatic dust removal mechanism is disclosed above, and the structures of the high-voltage power supply, such as an external required electric brush, a rectification and transformation structure required by the high-voltage power supply are not repeated.

In another embodiment, the drive mechanism comprises a shaft 5 fixed to the dust-collecting windshield 4, the shaft 5 being connected to an output shaft of a drive motor.

As another embodiment, the driving mechanism comprises a rotating shaft 5 fixed on the dust-retention windshield 4, an impeller 51 positioned in the air outlet and guide tube 2 is fixedly arranged on the rotating shaft 5, a through hole avoiding the rotating shaft 5 is formed in the center of the filter screen 3, the rotating shaft 5 is connected with an output shaft of a driving motor, and the pressure of the waste gas passing through the filter screen 3 can be increased by the rotation of the impeller 51.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims (9)

1. The utility model provides a can clear up dust collector of filter screen automatically, a serial communication port, including air duct (1) of admitting air, give vent to anger air duct (2) and be located air duct (1) of admitting air and give vent to anger filter screen (3) between air duct (2), install on the inner wall of air duct (2) entrance of giving vent to anger filter screen (3), air duct (1) of admitting air and give vent to anger can dismantle between air duct (2) and be connected, the exit of air duct (1) of admitting air rotates and is connected with a lantern ring (11), fixed being provided with a banding laying dust windshield (4) on lantern ring (11), laying dust windshield (4) have breach (41) towards filter screen (3) one side, laying dust windshield (4) internal fixation is provided with a collection dirt pole (42), it is connected with two mid point, the middle point that are located collection dirt pole (42) both sides respectively to rotate on, The dust collecting device comprises a spiral dust collecting sheet (43), wherein the dust collecting sheet (43) is rotatably connected to the inner wall of a dust collecting windshield (4), a gear (44) is arranged at the outer end of a dust collecting rod (42), a gear ring (45) matched with the gear (44) is arranged on an air outlet air guide tube (2), a plurality of corona rods (46) are arranged in the dust collecting windshield (4), the corona rods (46) are connected with the negative electrode of a high-voltage power supply, and the dust collecting rod (42) is connected with the positive electrode of the high-voltage power supply; the both ends of laying dust windshield (4) have one row of cinder notch (47) respectively, laying dust windshield (4) link to each other through the rotatory actuating mechanism of a drive laying dust windshield (4), and the spiral direction of two drive dirt pieces (43) is opposite.

2. The dust removal device capable of automatically cleaning the filter screen is characterized in that the driving mechanism comprises a rotating shaft (5) fixed on the dust collection windshield (4), an impeller (51) positioned in the air outlet duct (2) is fixedly arranged on the rotating shaft (5), and a through hole avoiding the rotating shaft (5) is formed in the center of the filter screen (3).

3. A dusting device with automatic cleaning of filter screens according to claim 1, characterized in that the driving mechanism comprises a shaft (5) fixed to the dust collection windshield (4), said shaft (5) being connected to the output shaft of a driving motor.

4. The dust removal device capable of automatically cleaning the filter screen is characterized in that the driving mechanism comprises a rotating shaft (5) fixed on the dust collection windshield (4), an impeller (51) positioned in the air outlet air guide pipe (2) is fixedly arranged on the rotating shaft (5), a through hole for avoiding the rotating shaft (5) is formed in the center of the filter screen (3), the rotating shaft (5) is connected with an output shaft of a driving motor, and the rotation of the impeller (51) can increase the pressure of waste gas passing through the filter screen (3).

5. The dust removal device capable of automatically cleaning the filter screen is characterized in that two arc-shaped shielding strips (48) are fixedly arranged on the dust collection windshield (4), the two shielding strips (48) are respectively positioned at two sides of the dust collection windshield (4), and the shielding strips (48) are used for shielding an avoidance gap between the air inlet air guide pipe (1) and the air outlet air guide pipe (2) due to the existence of the dust collection windshield (4).

6. A dust collector capable of automatically cleaning filter screen according to claim 1 or 2 or 3 or 4, characterized in that the collar (11) is connected with the outer wall surface of the air inlet duct (1) through a bearing.

7. A dust-collecting device capable of automatically cleaning filter screen according to claim 1 or 2 or 3 or 4, characterized in that a plurality of rotary drums are rotatably connected on the dust collecting rod (42), the rotary drums are fixedly connected with dust-driving sheets (43), and the rotary drums are rotatably connected on the inner wall of the dust-collecting wind-proof cover (4).

8. The dust removal device capable of automatically cleaning the filter screen according to claim 1, 2, 3 or 4, wherein the outer wall of the air inlet/guide tube (1) is provided with a first mounting ring (61), the outer wall of the air outlet/guide tube (2) is provided with a second mounting ring (62), the second mounting ring (62) is fixedly provided with a plurality of bolts (63), the first mounting ring (61) is provided with a plurality of mounting holes corresponding to the bolts (63), and the bolts (63) are in threaded connection with locking nuts.

9. A dust collector capable of automatically cleaning filter screen according to claim 1 or 2 or 3 or 4, wherein there are two corona rods (46), two corona rods (46) are respectively located at two sides of dust collecting rod (42), and the corona rods (46) are close to the filter screen (3).

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