CN217662324U - Dust remover and fire retardant device thereof - Google Patents

Abstract

The utility model relates to a dust remover and back-fire relief device thereof, which comprises a housin, set up air intake and air outlet on the casing, just right in the casing the air intake fire baffle, fire baffle is dull and stereotyped, the projection of air intake on fire baffle along the air current direction is at the fire baffle within range, fire baffle the fire baffle below sets up the deposition drawer. As the fire baffle is arranged, the air flow passing through the air inlet blows to the fire baffle, particles with larger particle size in the air flow can impact the fire baffle, the kinetic energy of the particles is lost, the particles fall under the action of gravity, are separated from the air flow and fall into the dust collection drawer. The fire baffle is more durable than general filter equipment, has better fire-resistant high temperature resistance, does not blockked the risk in gap, also need not to change and maintain through long-time the use. After the particles with large particle size are blocked and separated, the particles are filtered by a filtering device.

Description

Dust remover and fire retardant device thereof

Technical Field

The utility model relates to a dust remover field specifically is back-fire relief device of dust remover.

Background

During welding and other operations, toxic substances are often generated, and the gas with harmful substances inhaled by workers is harmful to the health of the workers. Therefore, welding and the like require installation of a dust collector. The dust remover can absorb and treat waste residues and toxic and harmful gases generated in welding, cutting and polishing processes such as electric welding, shielded welding, argon arc welding and the like, can prevent gas pollution through the welding fume dust remover, reduce harm of harmful substances to the health of operators, and prevent occupational diseases such as electric welding pneumoconiosis and the like.

The box of dust remover is equipped with filter equipment in, and filter equipment blocks the particulate matter in the gas, and filter equipment generally is the sack cleaner, contains inflammable material. The gases to be treated produced in some industrial fields often carry sparks and high temperature particles, such as cutting, electric welding and the like operations. These particulate matters get into the back probably can lead to the fact the damage to the sack cleaner, in order to avoid mars and high temperature granule to lead to the fact the destruction to the sack cleaner, often only can add the filter screen in the dust remover among the current sack cleaner, filter mars and particulate matter through the filter screen.

However, the larger particles may block the gaps in the screen, so that the frequency of replacing the screen is increased.

The particles fall off from the filtering device, fall into the dust-collecting drawer below, and the drawer is taken out and poured after being full of dust. Because the airflow in the dust remover has certain pressure, and the drawer is connected with the box body through the slide rail, gaps are difficult to avoid among the slide rail, the drawer and the box body, and the drawer and the box body need to be sealed in order to prevent the gas with dust from flowing out of the gaps.

The existing sealing mode is to arrange a supporting sheet on a drawer and screw the supporting sheet and a transverse plate matched with the box body through a bolt. This is cumbersome and time consuming to assemble and disassemble.

SUMMERY OF THE UTILITY MODEL

The to-be-solved problem of the utility model is to provide a dust remover and back-fire relief device thereof, back-fire relief device can block the large particle size particulate matter in the air current outside the dust remover in advance.

For solving the technical problem, the utility model discloses a back-fire relief device of dust remover, which comprises a housin, set up air intake and air outlet on the casing, just right in the casing the air intake fire damper, the fire damper is dull and stereotyped, the air intake is along the projection of air current direction on the fire damper at the fire damper within range, the fire damper below sets up the deposition drawer.

Owing to set up the fire damper, on the air current through the air intake blows the fire damper, the bigger particulate matter of particle diameter can strike the fire damper in the air current on, and particulate matter kinetic energy receives the loss, falls down under the effect of gravity, is separated out in the follow air current, falls in the deposition drawer. The fire baffle is more durable than general filter equipment, has better fire-resistant high temperature resistance, does not blockked the risk in gap, also need not to change and maintain through long-time the use. After the particles with large particle size are blocked and separated, the particles are filtered by a filtering device.

Preferably, the fire damper is arranged perpendicular to the direction of the gas flow.

As a further improvement, the left side and the right side of the fire baffle are fixedly connected with the shell, and a gap is reserved between the upper part and/or the lower part of the fire baffle and the shell to form an airflow channel.

Because the air flow channel is arranged at the upper side and the lower side, the particles with large particle size can be more easily separated in the ascending or descending process of the air flow.

As a further improvement, the fire damper comprises at least a first layer fire damper and a second layer fire damper, the first layer fire damper and the second layer fire damper are provided with vent holes, and the first layer fire damper and the second layer fire damper are arranged in a staggered manner.

Besides the airflow channel at the edge of the fire damper, a part of airflow passes through the ventilation holes in the fire damper, and the airflow passing through the ventilation holes in the first layer fire damper can strike the second layer fire damper.

The two layers of fire baffles with the ventilation holes can uniformly distribute air flow to disperse the air flow, so that the air flow is softer, turbulent flow in the air flow is reduced, and after the air flow is dispersed and uniformly distributed, the pressure of a rear filter cylinder can be reduced, and the pressure of the filter cylinder is increased.

Preferably, the diameter of the vent hole is smaller than 1/10 of the minimum value of the diameter or the length and the width of the air inlet.

The utility model discloses still a dust remover, the power distribution box comprises a box body, connect foretell back-fire relief device on the box.

Because set up the back-fire relief device outside the box, can get rid of the big particulate matter of spark or high temperature in the air current, prevent to get into other filter equipment in the box, damage filter equipment, improved filter equipment's life-span.

Preferably, the fire retardant device is mounted on the side of the box body.

As a further improvement, a dust-deposition drawer is arranged below the box body and comprises a drawer body arranged below the box body, a sealing plate arranged at the lower part of the box body and two rails, supporting plates matched with the sealing plate are arranged on the upper edges of two sides of the drawer, the supporting plates are matched with the rails and can slide in the rails, cams are arranged on the rails on the two sides, and operating levers capable of rotating the cams are fixedly arranged on the cams.

After the drawer is pushed in, the operating lever is rotated to drive the cam to rotate, and the highest position of the cam is used for jacking up the supporting plate of the drawer, so that the supporting plate of the drawer is in sealing contact with the sealing plate, and the aim of sealing is fulfilled; when the drawer needs to be pulled out, the operating lever is rotated to drive the cam to rotate, the edge of the base circle of the cam is contacted with the supporting plate, the drawer falls down to release the pressing contact state, and then the drawer is pulled out. The sealed structure is convenient and fast, and the drawer can be lifted only by pulling the operating rod.

As a further improvement, the axial direction of the cam is perpendicular to the drawing direction of the drawer, the rail comprises a vertical plate and a transverse plate, the cam is connected with an operating lever through a rotating shaft coaxial with the cam, the rotating shaft penetrates through the vertical plate and then is connected with the operating lever, the operating levers on two sides are connected through a transverse rod, a supporting table is arranged on the rail, the height of the supporting table is larger than the base circle radius of the cam, the supporting table is arranged on two sides of the cam, and the rail and the sealing plate are integrally formed.

As a further improvement, the axial direction of the cam is parallel to the drawing direction of the drawer, the cam is connected with an operating lever through a rotating shaft coaxial with the cam, a support is arranged on the track, the rotating shaft is arranged on the support, and the height of the support is greater than the base circle diameter of the cam.

The utility model discloses a dust remover has set up the fire board, and on the air current through the air intake blown the fire board, the bigger particulate matter of particle diameter can strike the fire board in the air current, and particulate matter kinetic energy received the loss, falls down under the effect of gravity, is separated out in the follow air current, falls into the deposition drawer. The fire baffle is more durable than general filter equipment, has better fire-resistant high temperature resistance, does not blockked the risk in gap, also need not to change and maintain through long-time the use. After the particles with large particle size are blocked and separated, the particles are filtered by a filtering device.

The foregoing description is only an overview of the technical solutions of the present application, so that the technical means of the present application can be more clearly understood and the present application can be implemented according to the content of the description, and in order to make the above and other objects, features and advantages of the present application more clearly understood, the following detailed description is made with reference to the preferred embodiments of the present application and the accompanying drawings.

The above and other objects, advantages and features of the present application will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following descriptions are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts. Throughout the drawings, like elements or portions are generally identified by like reference numerals.

Fig. 1 is a schematic view of the overall structure of the dust collector of the present invention.

Fig. 2 is a perspective view of the fire retardant device of the utility model.

Fig. 3 is a perspective view of a firestop device of the present invention.

Fig. 4 is a front view of the fire retardant device of the present invention.

Figure 5 is a schematic view of a double-deck fire stop and the provision of vent holes.

FIG. 6 is a perspective view of a first embodiment of an ash collection drawer.

FIG. 7 is a schematic structural view of a first embodiment of the dust collection drawer.

FIG. 8 is a front view of a first embodiment of the ash collection drawer.

Fig. 9 is a partially enlarged view of a portion a in fig. 8.

Fig. 10 is a perspective view of a second embodiment of an ash drawer.

FIG. 11 is a schematic structural view of a second embodiment of the dust collection drawer.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. In the following description, specific details such as specific configurations and components are provided only to help the embodiments of the present application be fully understood. Accordingly, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, descriptions of well-known functions and constructions are omitted in the embodiments for clarity and conciseness.

It should be appreciated that reference throughout this specification to "one embodiment" or "the embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrase "one embodiment" or "the present embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Further, the present application may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, B exists alone, and A and B exist at the same time, and the term "/and" is used herein to describe another association object relationship, which means that two relationships may exist, for example, A/and B, may mean: a alone, and both a and B alone, and further, the character "/" in this document generally means that the former and latter associated objects are in an "or" relationship.

The term "at least one" herein is merely an association relationship describing an associated object, and means that there may be three relationships, for example, at least one of a and B, may mean: a exists alone, A and B exist simultaneously, and B exists alone.

It is further 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.

As shown in figure 1, the dust remover of the utility model comprises a box body 1, set up dust blocking device 2 in the box body 1, dust blocking device 2 below sets up the deposition drawer. The fire retardant device 20 is connected to the box body 1, and the fire retardant device 20 is installed on the side face of the box body 1.

The utility model discloses a back-fire relief device of dust remover, including casing 23, set up air intake 24 and air outlet 25 on the casing 23, just right in the casing 23 air intake 24 fire damper 26, fire damper 26 are dull and stereotyped, and air intake 24 sets up deposition drawer 3 along the projection of air current direction on fire damper 26 in fire damper 26 within range, fire damper 26 below. The outlet 25 may be disposed opposite the inlet, i.e., directly behind the fire damper 26. The material of the fire shield 26 may be a steel plate.

Set up fire relief device 21 outside box 1, can get rid of the big particulate matter of spark or high temperature in the air current, prevent to get into other filter equipment 22 in the box 1, damage filter equipment 22, improved filter equipment 22's life-span.

The fire baffle 26 is arranged, the air flow through the air inlet 24 blows to the fire baffle 26, the particles with larger particle size in the air flow can collide with the fire baffle 26, the kinetic energy of the particles is lost, the particles fall under the action of gravity, are separated from the air flow and fall into the dust collection drawer 3. The fire shield 26 made of steel plate is more durable than a general filtering device, has better fire resistance and high temperature resistance, is not blocked from the risk of gaps, and does not need to be replaced and maintained after long-term use. After the particles with large particle size are blocked and separated in advance, the particles are filtered by a filtering device.

The fire shield 26 is disposed perpendicular to the in-flow direction. The left and right sides of the fire damper 26 are fixedly connected with the housing 23, and gaps are left between the upper and lower sides of the fire damper and the housing to form an air flow channel 28. It is also possible to provide the air flow passage only above or below the fire damper 26.

Because the air flow channel is arranged at the upper side and the lower side, the particles with large particle size can be more easily separated in the ascending or descending process of the air flow.

The fire baffle includes first layer fire baffle 261 and second floor fire baffle 262, sets up ventilation hole 27 on first layer fire baffle 261 and the second floor fire baffle 262, and first layer fire baffle 261 sets up with the second floor fire baffle 262 is crisscross. Three or more layers of fire stop panels 26 may also be provided.

Besides the airflow channel 28 passing through the edge of the fire damper 26, a part of the airflow passes through the vent 27 on the fire damper 26, and the airflow passing through the vent 27 of the first layer fire damper 261 can strike the second layer fire damper 262, and because the first layer fire damper 261 and the second layer fire damper 262 are arranged in a staggered manner, the airflow cannot directly pass through the vent 27 of the first layer fire damper 261, so that particles with large particle size can be better separated.

The two layers of fire baffles with the ventilation holes 27 can uniformly distribute air flow to disperse the air flow, so that the air flow is softer, the turbulence in the air flow is reduced, and after the air flow is uniformly distributed, the pressure of a filter cylinder at the back can be reduced, and the pressure of the filter cylinder is increased.

The diameter of the vent hole 27 is smaller than 1/10 of the minimum value of the diameter or the length and the width of the air inlet 24.

As shown in fig. 6 to 11, the structure of the dust-collecting drawer includes a drawer body 3 disposed below the dust blocking device, a sealing plate 4 and two rails 5 disposed below the box body 1, wherein the upper edges of two sides of the drawer are provided with supporting plates 6 matched with the sealing plate 4, the supporting plates 6 are matched with the rails 5 and can slide in the rails 5, the rails 5 of two sides are both provided with cams 7, and the cams 7 are fixedly provided with operating levers 8 capable of rotating the cams 7.

After the drawer 3 is pushed in, the operating lever 8 is rotated to drive the cam 7 to rotate, and the supporting plate 6 of the drawer is jacked up by the highest position of the cam 7, so that the supporting plate 6 of the drawer is in sealing contact with the sealing plate 4, and the purpose of sealing is achieved; when the drawer needs to be pulled out, the operating rod 8 is rotated to drive the cam 7 to rotate, the edge 71 of the base circle of the cam 7 is contacted with the supporting plate 6, the drawer falls down to release the pressing contact state, and then the drawer is pulled out. The sealing structure is convenient and fast, and the drawer can be lifted only by pulling the operating rod 8.

The cam can be mounted in two ways, one with its axial direction perpendicular to the drawer drawing direction and the other with its axial direction parallel to the drawer drawing direction.

As shown in fig. 6 to 9, the first mounting is performed by the cam 7 being connected to the operating lever 8 through a rotating shaft 9 coaxial with the cam 7. The axial direction of the cam 7 is perpendicular to the drawing direction of the drawer, i.e. the rotation axis 9 is perpendicular to the extension direction of the rail 5. The rail 5 needs to be provided with a part on the side for the spindle 9. To this end, the rail 5 includes a vertical plate 51 and a horizontal plate 52, and the rail 5 and the sealing plate 4 may be integrally formed. The outermost side of the sealing plate 4 is directly bent into a U shape, so that the track 5 is formed, and the process and the material are saved.

The rotating shaft 9 is arranged on a vertical plate 51, the rotating shaft 9 penetrates through the vertical plate 51, the inner end of the rotating shaft 9 is provided with a cam 7, and the outer end of the rotating shaft is connected with the operating rod 9.

The control levers 9 and the cams 7 on the two sides are symmetrically arranged, the control levers 9 on the two sides are connected into a whole through the cross rod 10, and the cross rod 10 can be lifted during operation to symmetrically operate the cams 7 on the two sides.

When the drawer falls down, the supporting plate 6 directly falls on the cam 7, and the drawer can be drawn out by directly rubbing against the cam 7, but the cam is easy to damage. In order to solve this problem, as shown in fig. 7, the support bases 11 are provided on the rail 5, the height of the support bases 11 is larger than the diameter 71 of the base circle 71 of the cam 7 and smaller than the diameter 72 of the cam at the apex, two or more support bases 11 may be provided, the support bases 11 are provided on both sides of the cam 7, the support bases 11 have a trapezoidal shape, and two trapezoids are bent using a steel plate. When the drawer needs to be pulled out, the operating rod 8 is rotated to drive the cam 7 to rotate, the edge 71 of the base circle of the cam 7 is contacted with the supporting plate 6, the drawer falls down, the supporting plate 6 falls on the upper surface of the supporting table 11, the cam 7 is prevented from blocking the supporting plate 6, and the movement friction of the supporting plate 6 is prevented from damaging the cam 7.

As shown in fig. 10 and 11, the second mounting mode is achieved by connecting the cam 7 to the operating lever 8 through a rotating shaft 9 coaxial with the cam 7, the axial direction of the cam 7 being parallel to the drawer drawing direction, i.e. the rotating shaft 9 being parallel to the extending direction of the rail 5, i.e. the rotating shaft 9 is mounted in the rail 5 and extends along the rail. For mounting the spindle 9, the rail 5 needs to be provided internally with a bracket 12 perpendicular to the extension of the rail for mounting the spindle 9.

A bracket 12 is arranged on the track 5, a rotating shaft 9 is arranged on the bracket 12, and the height of the bracket 12 is larger than the base radius 71 of the cam 7. The bracket 12 may be a square steel plate, and holes are punched on the bracket to allow the rotating shaft 9 to pass through, at least two brackets 12, preferably 3 brackets 12 are installed on the rail 5 on each side, and at least two cams 7, preferably 3 cams 7 are installed on the rotating shaft 9. The cam 7 may be mounted against the bracket 12. The top of the bracket 12 may also act as a contact surface with the tray 6 of the drawer, allowing the tray 6 to slide on top of the bracket 12, preventing the tray 6 from pressing against and damaging the cam 7 when the drawer is dropped.

A second way of mounting is to arrange the cams 7 with their axial direction perpendicular to the rail 5 by providing brackets 12 on the rail 5, which has the advantage of achieving several cams along the rail 5, so that the drawer is pressure-distributed over several cams 7. The pivot 9 is parallel to the track 5 and the lever 8 is typically mounted at 90 degrees to the pivot.

The drawer body 3 can be installed at the bottom of the dust collector, and can also be used for the fire box 20 of the dust collector, and the drawer body 33 is installed at the bottom of the fire box 20.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and those skilled in the art may make modifications and changes to the equivalent embodiment by using the technical contents disclosed above. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention all fall within the protection scope of the present invention.

Claims (10)

1. The utility model provides a back-fire relief device of dust remover, includes the casing, set up air intake and air outlet on the casing, its characterized in that: the shell is internally provided with a fire baffle plate opposite to the air inlet, the fire baffle plate is a flat plate, the projection of the air inlet on the fire baffle plate along the airflow direction is in the range of the fire baffle plate, and a dust deposition drawer is arranged below the fire baffle plate.

2. A flame arrester apparatus for a precipitator according to claim 1, wherein: the fire baffle is perpendicular to and sets up along the air current direction.

3. A flame arrester apparatus for a precipitator according to claim 1 or 2, wherein: the left side and the right side of the fire baffle are fixedly connected with the shell, and a gap is reserved between the upper part and/or the lower part of the fire baffle and the shell to form an airflow channel.

4. A flame arrester apparatus for a precipitator according to claim 3, wherein: the fire baffle includes at least first layer fire baffle and second floor fire baffle, set up the ventilation hole on first layer fire baffle and the second floor fire baffle, first layer fire baffle and the crisscross setting of second floor fire baffle.

5. A flame arrester apparatus for a precipitator according to claim 4, wherein: the diameter of the vent hole is smaller than 1/10 of the minimum value of the diameter or the length and the width of the air inlet.

6. A dust collector, characterized in that: comprising a box body, wherein the fire retardant device as claimed in any one of claims 1-5 is connected to the box body.

7. A precipitator in accordance with claim 6, wherein: the fire retardant device is arranged on the side surface of the box body.

8. A precipitator in accordance with claim 6, wherein: the box below sets up the deposition drawer, the deposition drawer is including setting up the drawer body in the box below and setting up at box lower part closing plate and two tracks, the last edge setting of drawer both sides with the layer board that the closing plate matches, the layer board with the track matches and can slide its characterized in that in the track: the tracks on the two sides are provided with cams, and the cams are fixedly provided with operating levers capable of enabling the cams to rotate.

9. A precipitator in accordance with claim 8, wherein: the axial perpendicular to of cam the pull direction of drawer, the track includes riser and diaphragm, the cam through with the coaxial pivot of cam is connected the control lever, the pivot is passed the riser reconnection the control lever, the control lever of both sides passes through the horizontal pole and connects, set up the brace table on the track, the height of brace table is greater than the base radius of cam, the brace table sets up the both sides of cam, the track with closing plate integrated into one piece.

10. A precipitator in accordance with claim 9, wherein: the axial direction of the cam is parallel to the drawing direction of the drawer, the cam is connected with an operating lever through a rotating shaft coaxial with the cam, a support is arranged on the track, the rotating shaft is arranged on the support, and the height of the support is larger than the base circle diameter of the cam.

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