Powder spraying room dust removal device with anti-explosion structure

Abstract

The utility model relates to the field of dust removal devices, in particular to a powder spraying room dust removal device with an anti-explosion structure. According to the technical scheme, the device comprises a cylinder, a conical cylinder fixedly connected to the lower end of the cylinder, an exhaust pipe installed at the upper end of the cylinder and an exhaust fan communicated with the tail end of the exhaust pipe, and further comprises an anti-static assembly installed on the cylinder; the anti-static assembly comprises a conductive pipe, a conductive chain, a spiral pipeline, an ion wind groove, a downward inclined air port, an ion wind bar and an ion generator, by arranging the anti-static assembly, static electricity in dust can be partially discharged in the dust collection pipeline firstly, then the remaining static electricity is neutralized by ion wind in the equipment, and the static electricity in the dust collection pipeline is discharged out of the dust collection pipeline; therefore, the possibility that discharge generated by static electricity ignites dust and causes explosion is greatly reduced, and the pressure relief valve also assists in pressure relief during explosion, so that the anti-explosion performance of the equipment is further improved, and the use safety of the equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to dust removal device field especially, it relates to a kind of powder spraying room dust removal device with explosion-proof structure. BACKGROUND

[0002] Powder spraying room is a kind of industrial facility specially used for powder coating, it allows workpiece to be evenly coated with a layer of powder coating by electrostatic spraying in closed or semi-closed environment. This coating method is applicable to the surface treatment of conductive materials such as metal, and can provide uniform, smooth and well-adhesive and corrosion-resistant coating.

[0003] When using dust collection equipment to suck dust in powder spraying room, static electricity in dust is accumulated in dust collection equipment, and when accumulated to a certain extent, it will be released and ignite dust in dust collection equipment, causing safety accidents.

[0004] Therefore, in view of the above-mentioned dust collection equipment in the process of sucking dust in powder spraying room, the static electricity in the dust will accumulate in the dust collection equipment, which may cause explosion. A powder spraying room dust removal device with explosion-proof structure can be designed to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] In order to overcome the process of sucking dust in dust collection equipment in powder spraying room, because static electricity in dust will be accumulated in dust collection equipment, when static electricity accumulates to a certain extent, it will be released and ignite dust in dust collection equipment, causing safety accidents.

[0006] The technical scheme of the utility model is: a powder spraying room dust removal device with explosion-proof structure, comprising a cylinder, a conical cylinder fixed to the lower end of the cylinder, an air extraction pipe installed on the upper end of the cylinder, an air extractor communicated with the end of the air extraction pipe, and a static electricity prevention assembly installed on the cylinder; the static electricity prevention assembly comprises a conductive pipe, a conductive chain, a spiral pipe, an ion wind groove, a lower inclined air port, an ion wind rod and an ion generator.

[0007] Preferably, the suction fan forms a negative pressure in the cylinder through the suction pipe to generate suction at the dust suction nozzle, and the dust enters the cylinder through the spiral ducts in the hose and the conductive pipe, the spiral ducts increase the length of the channel in the conductive pipe, and the three spiral ducts further increase the contact area of the dust with the inner wall of the spiral ducts, so that the static electricity in the dust can be discharged to the ground through the conductive pipe and the conductive chain, when the dust-containing gas enters the cylinder, the airflow rotates in the cylinder and the cone, the dust particles in the airflow move to the inner wall under the action of the centrifugal force, and after impacting the inner wall, the dust particles rotate along the wall under the action of the airflow and the gravity, and fall into the dust collection box, at the same time, the ion wind rod ionizes the surrounding air through the high voltage of the ion generator to generate ion wind to neutralize the residual static electricity in the dust, at the same time, the shape of the lower inside and the higher outside of the lower inclined air inlet allows the ion generator to contact the air, and the dust is not easy to enter the ion wind tank with the airflow, thereby greatly reducing the probability of explosion, and the pressure relief valve also assists in pressure relief when explosion occurs, thereby further improving the explosion-proof performance of the equipment.

[0008] Preferably, the conductive pipe is installed on one side of the cylinder; the conductive chain is connected to the lower end of the conductive pipe; and the three spiral ducts are arranged in the conductive pipe.

[0009] Preferably, the ion wind tank is arranged on the inner side of the cylinder; the lower inclined air inlet is arranged on one side of the ion wind tank; and the lower inside of the lower inclined air inlet is higher than the outside.

[0010] Preferably, the ion wind rod is arranged in the ion wind tank; the threaded holes are arranged at the upper and lower ends of the ion wind rod, and the ion wind rod is installed on the outer side of the rear end of the cylinder through the threaded holes and the screws; and the ion generator is electrically connected to the lower end of one side of the ion wind rod through the wire.

[0011] Preferably, the dust collection box is installed at the lower end of the cone; the four suspension columns are fixedly connected to the lower end of the suction fan; and the hose is installed at the upper end of the conductive pipe.

[0012] Preferably, the dust suction nozzle is installed on the hose; the squeegee is installed at the lower end of the dust collection box; and the four universal wheels are installed at the lower end of the squeegee.

[0013] Preferably, the squeegee is fixedly connected with the suspension columns and the ion generator; the two suction grooves are installed at the rear end of the squeegee; and the suction rod is slidably connected in the suction grooves.

[0014] The utility model discloses the beneficial effects of:

[0015] 1. By setting the anti-static components, the static electricity in the dust can be discharged in the interior of the dust suction pipeline first, then the remaining static electricity is neutralized by the ion wind in the interior of the equipment, so that the possibility of explosion caused by the discharge of static electricity igniting dust and causing explosion is greatly reduced, and the pressure relief valve also assists in pressure relief when explosion occurs, so as to further improve the explosion-proof performance of the equipment, thereby improving the use safety of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The overall structure schematic diagram of the utility model is shown.

[0017] Figure 2 The overall structure schematic diagram of the utility model is shown.

[0018] Figure 3 The overall structure schematic diagram of the utility model is shown.

[0019] Figure 4 The overall structure schematic diagram of the utility model is shown.

[0020] Figure 5 The overall structure schematic diagram of the utility model is shown.

[0021] Reference signs: 1, cylinder; 2, cone; 3, air suction pipe; 4, air suction machine; 501, conductive pipe; 502, conductive chain; 503, spiral pipeline; 504, ion wind groove; 505, downward inclined air port; 506, ion wind rod; 507, ion generator; 508, pressure relief valve; 6, dust collection box; 7, suspension column; 8, hose; 9, dust suction nozzle; 10, drag plate; 11, universal wheel; 12, suction groove; 13, suction rod. DETAILED DESCRIPTION

[0022] The utility model will be further explained in combination with the drawings and examples.

[0023] Please refer to Figures 1-5The utility model provides an embodiment: a kind of dust removal device of powder spraying room with explosion-proof structure, including cylinder 1, the conical cylinder 2 of fixed connection in the lower end of cylinder 1, the suction pipe 3 of installation in the upper end of cylinder 1, the suction fan 4 being communicated with the tail end of suction pipe 3, still including the anti-static component of installation on cylinder 1;Anti-static component includes electrically conductive tube 501, electrically conductive chain 502, spiral duct 503, ion wind groove 504, lower inclined air port 505, ion wind stick 506, ion generator 507;The lower end of conical cylinder 2 is equipped with dust collection box 6;The lower end of suction fan 4 is fixedly connected with four suspension columns 7;The upper end of electrically conductive tube 501 is equipped with hose 8;Suction nozzle 9 is installed on hose 8;The lower end of dust collection box 6 is equipped with drag plate 10;The lower end of drag plate 10 is equipped with four universal wheels 11;Drag plate 10 is fixedly connected with suspension column 7 and ion generator 507;The rear end of drag plate 10 is equipped with two draw grooves 12;Draw rod 13 is slidably connected in draw groove 12.

[0024] Please refer to Figures 2-5 In the embodiment, the side of cylinder 1 is equipped with electrically conductive tube 501;The lower end of electrically conductive tube 501 is connected with electrically conductive chain 502;Three spiral ducts 503 are arranged in the inside of electrically conductive tube 501;The side of suction pipe 3 is equipped with pressure relief valve 508;The inside of cylinder 1 is equipped with ion wind groove 504;The side of ion wind groove 504 is equipped with lower inclined air port 505;The inside of lower inclined air port 505 is low and the outside is high;Ion wind stick 506 is arranged in the inside of ion wind groove 504;Threaded holes are formed in the upper and lower ends of ion wind stick 506, and ion wind stick 506 is installed at the rear end of the outside of cylinder 1 through threaded holes and screws;The lower end of the side of ion wind stick 506 is electrically connected with ion generator 507 through wire.

[0025] When using, suction fan 4 forms negative pressure in cylinder 1 through suction pipe 3, to generate suction force at suction nozzle 9, dust enters cylinder 1 through spiral duct 503 in electrically conductive tube 501 and hose 8 due to suction force, spiral duct 503 can increase the length of channel in electrically conductive tube 501, and three spiral ducts 503 can further increase the area of contact between dust and the inner wall of spiral duct 503, so that static electricity in dust can be discharged to the ground through electrically conductive tube 501 and electrically conductive chain 502, when dust-containing gas enters cylinder 1, airflow makes rotational motion in cylinder 1 and conical cylinder 2, dust particles in airflow move to inner wall under the action of centrifugal force, and after impacting on inner wall, dust particles rotate along wall surface and sink under the action of airflow and gravity, until falling into dust collection box 6;

[0026] At the same time, the ion wind rod 506 ionizes the surrounding air through the high voltage of the ion generator 507 to generate ion wind to neutralize the static electricity remaining in the dust, and the shape of the lower inside and higher outside of the lower inclined air port 505 allows the ion generator 507 to contact the air, and the dust is not easy to enter the ion wind groove 504 with the air flow, thereby greatly reducing the probability of explosion, and the pressure relief valve 508 will also assist in pressure relief when exploding, to further improve the explosion-proof performance of the equipment, and the combination of the drag plate 10, the universal wheel 11 and the pull rod 13 can also make the equipment easier to move;

[0027] The corona discharge of the ion wind rod 506 is a local ionization phenomenon that occurs around the electrode tip of the ion wind rod 506, and the ions generated are gradually diffused to the surrounding space, and the energy generated by the corona discharge is mainly used to ionize air molecules to form ions, rather than concentrating and releasing a large amount of energy at a very small point like static discharge, so there is no need to worry about the ion wind rod 506 igniting the dust.

[0028] Through the above steps, by setting the anti-static component, the static electricity in the dust can be first discharged in part inside the dust suction pipeline, and then the remaining static electricity is neutralized by ion wind inside the equipment, thereby greatly reducing the possibility of discharging and igniting dust caused by static electricity and causing explosion, and the pressure relief valve 508 will also assist in pressure relief when exploding, to further improve the explosion-proof performance of the equipment, thereby improving the safety of the equipment.

Claims

1. A dedusting device for a powder spraying room with an anti-explosion structure, comprising a cylinder (1), a conical cylinder (2) fixed to the lower end of the cylinder (1), an air suction pipe (3) installed on the upper end of the cylinder (1), and an air suction fan (4) communicated with the end of the air suction pipe (3); characterized in that: The anti-static assembly is installed on the cylinder (1), and comprises a conductive pipe (501), a conductive chain (502), a spiral pipe (503), an ion wind groove (504), a lower inclined air port (505), an ion wind rod (506) and an ion generator (507).

2. The dedusting device of the powder spraying room with the anti-explosion structure according to claim 1, characterized in that: The conductive pipe (501) is installed on one side of the cylinder (1), and the lower end of the conductive pipe (501) is connected with the conductive chain (502).

3. The dedusting device of the powder spraying room with the anti-explosion structure according to claim 2, characterized in that: The inside of the conductive pipe (501) is provided with three spiral pipes (503).

4. The dedusting device of the powder spraying room with the anti-explosion structure according to claim 3, characterized in that: The inside of the cylinder (1) is provided with the ion wind groove (504), and the ion wind groove (504) is provided with the lower inclined air port (505) on one side.

5. The dedusting device of the powder spraying room with the anti-explosion structure according to claim 1, characterized in that: The inside of the ion wind groove (504) is provided with the ion wind rod (506).

6. The dedusting device of the powder spraying room with the anti-explosion structure according to claim 5, characterized in that: The upper and lower ends of the ion wind rod (506) are provided with threaded holes, and the ion wind rod (506) is installed on the outside of the rear end of the cylinder (1) through the threaded holes and screws. The lower end of one side of the ion wind rod (506) is electrically connected with the ion generator (507) through an electric wire.

7. The dedusting device of the powder spraying room with the anti-explosion structure according to claim 6, characterized in that: The lower end of the cone cylinder (2) is installed with the dust collection box (6). The lower end of the dust collection box (6) is installed with the mop plate (10). The lower end of the mop plate (10) is installed with four universal wheels (11). The mop plate (10) is fixedly connected with the suspension column (7) and the ion generator (507). The rear end of the mop plate (10) is installed with two suction grooves (12). The suction grooves (12) are jointly and slidably connected with the suction rod (13).

Images