CN213193064U

CN213193064U - Dust collection explosion-proof device

Info

Publication number: CN213193064U
Application number: CN202021683606.7U
Authority: CN
Inventors: 范尚永
Original assignee: Nanyang Sanhe Explosion Proof Electric Co ltd
Current assignee: Nanyang Sanhe Explosion Proof Electric Co ltd
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2021-05-14
Anticipated expiration: 2030-08-13

Abstract

The utility model discloses a dust collecting explosion-proof device, belonging to the technical field of explosion-proof dust-removing equipment, comprising an exhaust fan, the inlet of the exhaust fan is provided with a protective grating, the outlet of the exhaust fan is sequentially communicated with a primary dust removal device and a secondary dust removal device, the first-stage dust removing device comprises a spraying tank, a water tank, a spraying water pipe, a slurry pump and a spray head, the second-stage dust removing device comprises a cyclone separator and a dust collecting box, the upper end of the cyclone separator is provided with the exhaust pipe, the dust collection box is provided with the observation window, the lower part of the spraying tank is provided with the base, the utility model is used for collecting inflammable and explosive dust, has the advantages of large flow, high flow speed and no blockage of a filter screen compared with filtering type dust removal equipment, is suitable for places such as large warehouses, workshops and the like, can wet the air containing dust and prevent the dust particles from being burnt and exploded due to the accumulation of static electricity in the dust collection process.

Description

Dust collection explosion-proof device

Technical Field

The utility model belongs to the technical field of explosion-proof dust collecting equipment, specifically be an explosion-proof equipment is collected to dust.

Background

In explosion dangerous places with inflammable and explosive dust (such as flour, aluminum powder, magnesium powder and the like), a large amount of floating or accumulated dust is usually generated, and when the dust reaches a certain concentration, the dust is ignited when meeting sparks or dangerous high temperature, so that dangerous accidents such as explosion and the like are caused, and great loss of human bodies and property is easily caused.

The existing dust removing equipment adopts a filtering structure more, so that dust-containing air passes through filtering screens with different meshes, and dust particles with different diameters are filtered.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the dust collection explosion-proof device is strong in dust removal capacity and suitable for being used in places such as warehouses and workshops with large space, and solves the problems that a filter type dust removal device provided in the background technology is easy to block a net and the dust removal capacity is limited.

The utility model adopts the technical scheme as follows:

an explosion-proof device is collected to dust, includes the air exhauster, the air exhauster entrance is equipped with the protection grid, the export of air exhauster accesss to one-level dust collector, second grade dust collector in proper order, one-level dust collector includes sprays jar, basin, shower pipe, slush pump, shower nozzle, the air exhauster with be equipped with the intake pipe between the jar that sprays, the entry of intake pipe with the export of air exhauster communicates with each other, the export of intake pipe with the jar that sprays communicates with each other, the below of the jar that sprays is equipped with the basin, the lower extreme of the jar that sprays is equipped with just to the opening of basin, the opening of the jar lower extreme that sprays inserts below the liquid level of basin, be equipped with the slush pump in the basin, the export of slush pump with the shower pipe intercommunication, the other end of shower pipe with the upper portion intercommunication of jar that sprays, the shower pipe is in the inboard exit of, the upper end of the spraying tank is connected with a communicating pipe, the other end of the communicating pipe is communicated with the secondary dust removal device, the secondary dust removal device comprises a cyclone separator and a dust collection box, the communicating pipe is communicated with the upper portion of the cyclone separator, the lower end of the cyclone separator is communicated with the dust collection box, an exhaust pipe is arranged at the upper end of the cyclone separator, and the exhaust pipe is communicated with the outside atmosphere.

The connecting part of the air inlet pipe and the spraying tank is positioned at the lower side of the spraying tank.

An observation window is arranged on the dust collection box.

The spray tank is provided with a base below, and the spray tank is placed on the base.

The driving motor of the exhaust fan adopts an explosion-proof motor.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

(1) the two-stage dust removal mode of spraying dust removal and cyclone dust removal is adopted, and the structure that the flow velocity of air flow is influenced by a filter screen and the like is avoided, so that the dust removal device can remove dust at a high flow rate and a high flow velocity, and is suitable for dust removal in places such as large warehouses and workshops.

(2) The air exhauster adopts the explosion-proof motor, can not produce the electric spark and lead to the dust explosion, and the one-level dust removal adopts the mode of spraying the dust removal, and the air current increases through spraying jar back humidity, can prevent that the dust from colliding each other in cyclone, rubbing and producing the electrostatic accumulation, avoids the explosion that static arouses.

(3) The entrance of the exhaust fan is provided with a protective grating which can prevent foreign matters from entering the exhaust fan and ensure the safe operation of the equipment.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a right side view of the present invention.

Fig. 3 is a structural diagram of the middle one-stage dust removing device of the present invention.

Fig. 4 is an enlarged view of a portion a in fig. 3.

Fig. 5 is a front view of the middle exhaust fan of the present invention.

The labels in the figure are: 1-exhaust fan, 2-air inlet pipe, 3-spray tank, 4-water tank, 5-spray water pipe, 6-slurry pump, 7-spray head, 8-communicating pipe, 9-cyclone separator, 10-protective grid, 11-dust collecting box, 12-observation window, 13-exhaust pipe and 14-base.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Example 1

A dust collection explosion-proof device comprises an exhaust fan 1, a protective grating 10 is arranged at the inlet of the exhaust fan 1, foreign matters except dust can be prevented from entering the exhaust fan 1, the protective grating 10 is made of metal materials, the dust is prevented from being rubbed with the protective grating 10 and generating static electricity when colliding, the outlet of the exhaust fan 1 is sequentially communicated with a first-stage dust removal device and a second-stage dust removal device, the dust in the dust-containing air is sequentially removed by the first-stage dust removal device and the second-stage dust removal device, the first-stage dust removal device comprises a spraying tank 3, a water tank 4, a spraying water pipe 5, a mud pump 6 and a spray head 7, an air inlet pipe 2 is arranged between the exhaust fan 1 and the spraying tank 3, the inlet of the air inlet pipe 2 is communicated with the outlet of the exhaust fan 1, the outlet of the air inlet pipe 2 is communicated with the spraying tank 3, the joint of the air inlet, and is sent into a spray tank 3 through an air inlet pipe 2 for primary dust removal, a water tank 4 is arranged below the spray tank 3, the lower end of the spray tank 3 is provided with an opening, a mud pump 6 is arranged in the water tank 4, the model is Zhongcheng pump BQW10-34-2.2 type mud pump, the water tank 4 is filled with spray water, the opening at the lower end of the spray tank 3 is inserted below the water surface of the water tank 4, the outlet of the mud pump 6 is communicated with a spray water pipe 5, the other end of the spray water pipe 5 is communicated with the upper part of the spray tank 3, the spray water pipe 5 is provided with a nozzle 7 at the inner side outlet of the spray tank 3, the aperture of the nozzle 7 is 1mm, the mud pump 5 sends the spray water in the water tank 4 into the spray water pipe 5 and forms water mist through the nozzle 7, the upper end of the spray tank 3 is connected with a communicating pipe 8, the secondary dust removal device comprises a cyclone separator 9 and a dust collection box 11, a communication pipe 8 is communicated with the upper part of the cyclone separator 9, the lower end of the cyclone separator 9 is communicated with the dust collection box 11, an observation window 12 is arranged on the dust collection box 11, the observation window 12 is made of glass, the observation window 12 is in a strip shape, the top end of the observation window 12 is higher than 80% of the height of the dust collection box 11, the lower end of the observation window 12 is lower than 20% of the height of the dust collection box 11 and used for observing the dust amount in the dust collection box 11, the dust collection box 11 can be detached from the cyclone separator 9 to facilitate pouring out the collected dust, an exhaust pipe 13 is arranged at the upper end of the cyclone separator 9, the exhaust pipe 13 is communicated with the outside atmosphere.

A base 14 is arranged below the spraying tank 3, and the spraying tank 3 is placed on the base 14 to support the spraying tank 3.

The driving motor of the exhaust fan 1 is an explosion-proof motor with the model of a horizontal electric YB3-TA, the rotating speed is 2900rpm, and the power is 2.2 kilowatts.

And a filter is arranged at the inlet of the slurry pump, and the filtering diameter of the filter is smaller than the aperture of the spray hole of the spray head 7.

The working principle is as follows: the device is installed indoors, water is required to be added into a water tank 4 before dust removal, the water level is kept above 3/4 of the height of the water tank 4, a mud pump 6 is submerged, the mud pump 6 and a cyclone separator 9 are started firstly during dust removal, then an exhaust fan 1 is started, air with dust is sent into an air inlet pipe 2, dust-containing air enters from the lower side of a spraying tank 3 along the air inlet pipe 2 and is discharged from the top of the spraying tank 6, a spray head 7 sprays spraying water from the upper side of the spraying pipe 3 to wash the dust-containing air, the weight of larger dust particles is increased after the dust particles are sprayed by water mist, the dust particles fall to the bottom of the spraying tank 6 and enter the water tank 4, smaller dust particles leave from the top of the spraying tank 6 along with the air and enter the cyclone separator 9 through a connecting pipe 8 for secondary dust removal, in the cyclone separator, the dust particles fall to the bottom of the cyclone separator and fall, the dust-laden air is discharged from an exhaust duct 13 at the top of the cyclone 9.

Regularly observe the dust volume in the dust collection box 11 through observation window 12, clear up the dust in the dust collection box 11 in time, when the dust granule in basin 4 is too much or the quality of water is than muddy, need clear up basin 4 and change the water that sprays.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The dust collection explosion-proof device comprises an exhaust fan (1), wherein a protective grid (10) is arranged at the inlet of the exhaust fan (1), and is characterized in that an outlet of the exhaust fan (1) sequentially leads to a first-stage dust removal device and a second-stage dust removal device, the first-stage dust removal device comprises a spraying tank (3), a water tank (4), a spraying water pipe (5), a slurry pump (6) and a spray head (7), an air inlet pipe (2) is arranged between the exhaust fan (1) and the spraying tank (3), an inlet of the air inlet pipe (2) is communicated with the outlet of the exhaust fan (1), an outlet of the air inlet pipe (2) is communicated with the spraying tank (3), the water tank (4) is arranged below the spraying tank (3), an opening is arranged at the lower end of the spraying tank (3), and the opening at the lower end of the spraying tank (3) is inserted below the liquid, a slurry pump (6) is arranged in the water tank (4), the outlet of the slurry pump (6) is communicated with the spray header (5), the other end of the spray water pipe (5) is communicated with the upper part of the spray tank (3), the spray water pipe (5) is provided with the spray head (7) at the inner outlet of the spray tank (3), the upper end of the spraying tank (3) is connected with a communicating pipe (8), the other end of the communicating pipe (8) is communicated with the secondary dust removal device, the secondary dust removing device comprises a cyclone separator (9) and a dust collecting box (11), the communicating pipe (8) is communicated with the upper part of the cyclone separator (9), the lower end of the cyclone separator (9) is communicated with the dust collection box (11), an exhaust pipe (13) is arranged at the upper end of the cyclone separator (9), and the exhaust pipe (13) is communicated with the outside atmosphere.

2. A dust collection explosion protection device according to claim 1, wherein the connection of the air inlet pipe (2) and the sprinkling tank (3) is located at the lower side of the sprinkling tank (3).

3. A dust collection explosion protection device according to claim 1, wherein the dust box (11) is provided with a viewing window (12).

4. A dust collection explosion protection device according to claim 1, wherein a base (14) is provided below the sprinkling tank (3), and the sprinkling tank (3) is placed on the base (14).

5. A dust collecting explosion-proof device according to claim 1, wherein the driving motor of the exhaust fan (1) is an explosion-proof motor.