CN114797331B

CN114797331B - Dust collecting equipment and method and production line with dust collecting equipment

Info

Publication number: CN114797331B
Application number: CN202210702693.3A
Authority: CN
Inventors: 周钰; 周国荣
Original assignee: Zhangjiagang Huashen Industrial Rubber Products Co ltd
Current assignee: Zhangjiagang Huashen Industrial Rubber Products Co ltd
Priority date: 2022-06-21
Filing date: 2022-06-21
Publication date: 2022-09-23
Anticipated expiration: 2042-06-21
Also published as: CN114797331A

Abstract

The invention discloses dust collecting equipment, relates to the technical field of industrial dust removal, and comprises a box body and an induced draft fan. Set up the bidirectional filter in the box, remove about the ring body through controlling the bidirectional filter, in order to reach control left side import, left side export, right side import, opening and sealing of right side export, in order to select to filter in left filter chamber or in right filter chamber, on this basis, set up the ring air duct that encircles left filter chamber and right filter chamber in the bidirectional filter, and set the air exit aperture with ring air duct side to be less than the opening, make in left filter chamber and the right filter chamber no matter which filter screen is filtering, can both utilize the wind after filtering the raise dust to carry out the blowback to another filter screen not at filterable, make the raise dust on the filter screen drop to in the dust collecting bin. This is advantageous in that the dust collecting device can be made to suck and filter the dust at all times by means of a filter and a further blow-back.

Description

Dust collecting equipment and method and production line with dust collecting equipment

Technical Field

The invention relates to the technical field of industrial dust removal, in particular to dust collecting equipment.

Background

When industrial raw materials such as coal, lime, grit are transported to the belt, can raise more dust granule, and these dust granules cause health harm, in order to ensure operation personnel's healthy, need install dust collecting equipment along belt direction of transportation.

At present dust collecting equipment, like the "a multi-functional dust collecting equipment" that chinese patent CN111888839A disclosed, its specifically disclose through in the raise dust on the updraft ventilator belt inhales the accommodate device, adsorb through the filter screen again and concentrate in the outside, adsorb the raise dust to the saturation back when the filter screen outside, close updraft ventilator, utilize the air pulse solenoid valve to blow off the raise dust in the filter screen outside.

Above-mentioned patent technical scheme is after the filter screen adsorbs the saturation, must stop convulsions and handle, also can't absorb the raise dust on the belt this moment of saying so, needs other dust collecting equipment or dust collecting equipment, absorbs the treatment to the raise dust on the belt, must lead to dust collecting equipment's input cost and use cost greatly increased like this.

Disclosure of Invention

One purpose of the invention is to solve the problems that dust collecting equipment cannot absorb the raised dust on the belt all the time when industrial raw materials are transported in the prior art, so that more dust collecting equipment is required to be added, and the cost is increased.

Another object of the present invention is to provide a dust collecting method.

The invention also aims to provide a production line with dust collecting equipment.

In order to achieve one of the purposes, the invention adopts the following technical scheme: the utility model provides a dust collecting equipment, includes interconnect's box and draught fan, the draught fan has the fan blade, the fan blade sets up be used for convulsions in the suction hood under the box, be equipped with in the box with the dust absorption of suction hood intercommunication is said, install two-way filter in the box.

The bidirectional filter comprises a left filter chamber and a right filter chamber, the left filter chamber is communicated with the dust suction channel through a left inlet, the right filter chamber is communicated with the dust suction channel through a right inlet, a left outlet is formed in the lower portion of the left filter chamber, a right outlet is formed in the lower portion of the right filter chamber, and the left outlet and the right outlet are communicated with the dust collection bin of the box body.

The filter comprises a left filter cavity, a right filter cavity and an annular filter screen, wherein the inner sides of the left filter cavity and the right filter cavity are respectively provided with an inner connecting plate, the outer sides of the left filter cavity and the right filter cavity are respectively provided with an outer connecting plate, and the annular filter screen is arranged between the inner connecting plate and the outer connecting plate.

Bidirectional filter is equipped with annular ring wind groove, ring wind groove surrounds left side filter chamber with right side filter chamber, seted up the opening on the outer fishplate bar, make through this opening left side filter chamber with ring wind groove intercommunication, and make right side filter chamber with ring wind groove intercommunication, the aperture has been seted up to ring wind groove side and has been less than the air exit of opening, the air exit intercommunication the exhaust pipe of box.

Sliding connection has last shrouding and lower shrouding among the two-way filter, go up the shrouding with be equipped with the annular down between the shrouding, sliding connection has the ring body in the annular, ring body top left and right sides all is connected with go up the shrouding, ring body below left and right sides all is connected with down the shrouding, go up the shrouding and seted up the through-hole, this through-hole is used for making left side filter chamber or right side filter chamber intercommunication the dust absorption way, the ring body is through following the left side of annular slides, makes it seals to go up the shrouding the right side import with make the shrouding seals down the left side export, the ring body is through following the right side of annular slides, makes it seals to go up the shrouding the left side import with open the right side import makes simultaneously the shrouding seals down the right side export with open the left side export.

In the above technical solution, when the bidirectional filter is used, the ring body in the bidirectional filter is controlled to slide along the ring groove leftwards, the upper sealing plate of the ring body is driven to seal the right inlet and open the left inlet, and the lower sealing plate of the ring body is driven to open the right outlet and seal the left outlet.

Then start the draught fan and inhale the dust absorption way with the raise dust under the suction hood for during the raise dust enters into left filter chamber from left import, filter the raise dust through the annular filter screen in the left filter chamber, and wind-force then passes the filter screen of left filter chamber in the opening of edge fishplate bar enters into annular air duct, through the air exit of annular air duct side, discharges from the exhaust pipe of box.

When the filtration of the annular filter screen in the left filter cavity reaches saturation, the control ring body slides along the annular groove to the right, the upper sealing plate of the ring body is driven to open the right inlet and seal the left inlet, and the lower sealing plate of the ring body is driven to seal the right outlet and open the left outlet.

The raise dust of dust absorption way enters into right filter chamber from the right import under wind-force drive this moment, filters the raise dust through the annular filter screen in the right filter chamber, and wind-force passes the filter screen in the right filter chamber after along the opening of external connection board and enters into the annular air duct, and then through the air exit of annular air duct side, discharges from the exhaust pipe of box.

Because of the aperture of air exit is less than the opening, so wind-force in the ring air duct not only can flow from the air exit, still can flow along the ring air duct, enters into left filter chamber, carries out the blowback to the filter screen in the left filter chamber, blows off the raise dust on the filter screen in the left filter chamber, makes the raise dust fall into the dust collecting bin from left export.

Similarly, when the filter screen in the left filter chamber filters the raise dust, the part of wind power entering the annular air groove from the left filter chamber also flows into the right filter chamber, and the filter screen in the right filter chamber is subjected to back blowing to blow off the raise dust on the filter screen in the right filter chamber, so that the raise dust falls into the dust collection bin from the right outlet.

Further, in the embodiment of the invention, the suction hood is of a conical structure with a large lower part and a small upper part, and the suction hood is fixed below the box body through detachable connection.

Further, in the embodiment of the invention, a discharge pipe is arranged on the right side of the box body and is communicated with the dust collection bin.

Furthermore, in the embodiment of the invention, a spiral reamer is rotatably connected below the dust collecting bin, the shaft end of the spiral reamer is connected with a driving motor, and the spiral reamer is driven by the driving motor to rotate so as to push dust particles to enter the discharge pipe to be discharged.

Furthermore, in an embodiment of the invention, an expansion hose is connected below the tapping pipe, and the expansion hose is made of a rubber material and/or a steel material.

Further, in the embodiment of the present invention, the annular groove is connected to an air source pump or the ring body is connected to a power motor, an air pressure sensor is installed in the dust suction duct, and the air pressure sensor is connected to the air source pump or the power motor in a wired or wireless communication manner.

And when the air pressure of the dust absorption channel reaches a preset height, the air pressure sensor controls the air source pump to fill or suck air into the annular groove to control the sliding of the ring body, or controls the power motor to drive the sliding of the ring body, so that the left inlet, the left outlet, the right inlet and the right outlet are controlled to be opened and sealed.

Further, in the embodiment of the present invention, an outer ring is slidably connected to the inner connection plate, an inner ring is fixedly connected to the inner connection plate, a gap is formed between the outer ring and the inner ring, a resistance spring is arranged between the outer ring and the inner ring, an electric sheet is arranged on the outer ring, a conductive sheet is arranged on the inner ring, a gap is left between the electric sheet and the conductive sheet, the electric sheet is connected to a power supply, a vibrator is arranged on the side of the inner connection plate, and the vibrator is connected to the conductive sheet.

When the filter screen in the left filter chamber filters the raise dust, the outer loop on the fishplate bar in the left filter chamber is promoted to wind-force through left filter chamber, impels outer loop compression resistance spring to move to the right, and then makes the electric sheet and conducting strip contact conduction circuit, finally makes the vibrator that links to each other with right filter chamber fishplate bar start, vibrates the filter screen in the right filter chamber, shakes off the raise dust, forms the cooperation with the blowback mode, realizes shaking off the quick and powerful of raise dust.

Similarly, when the filter screen in the right filter chamber filters the raise dust, the electric sheet is pushed by wind power to be in contact with the conducting sheet to conduct the circuit, finally the vibrator is started to vibrate the filter screen in the right filter chamber, the raise dust is shaken off, and the raise dust is matched with a back blowing mode to realize fast and powerful shaking off of the raise dust.

The invention has the beneficial effects that: the box body is internally provided with the bidirectional filter, the opening and the sealing of the left inlet, the left outlet, the right inlet and the right outlet are controlled by controlling the left and right movement of the ring body of the bidirectional filter, so that the left filter chamber or the right filter chamber can be selected for filtering. This is advantageous in that the dust collecting device can be made to suck and filter the dust at all times, by means of one filtering and another blow-back. The problem of when transportation industrial raw materials, dust collecting equipment can't accomplish to absorb the raise dust on the belt always to lead to throwing into more dust collecting equipment, increase cost is solved.

In order to achieve the second purpose, the invention adopts the following technical scheme: a dust collecting method applied to the dust collecting apparatus described in one of the above objects of the invention, the dust collecting method comprising the steps of:

the ring body in the bidirectional filter is controlled to slide along the ring groove leftwards, the upper sealing plate of the ring body is driven to seal the right inlet and open the left inlet, and the lower sealing plate of the ring body is driven to open the right outlet and seal the left outlet.

Then start the draught fan and inhale the dust absorption way with the raise dust under the suction hood for during the raise dust enters into left filter chamber from left import, filter the raise dust through the annular filter screen in the left filter chamber, and wind-force then passes the filter screen of left filter chamber and then enters into the annular air duct along the opening of outer fishplate bar behind, through the air exit of annular air duct side, discharges from the exhaust pipe of box.

When the annular filter screen in the left filter cavity is saturated, the ring body is controlled to slide along the annular groove rightwards, the upper sealing plate of the ring body is driven to open the right inlet and seal the left inlet, and the lower sealing plate of the ring body is driven to seal the right outlet and open the left outlet.

The dust of dust absorption way enters into right filter chamber from the right import under the drive of wind-force this moment, filters the raise dust through the annular filter screen in the right filter chamber, and wind-force passes the filter screen in the right filter chamber and later enters into the annular air duct along the opening of external connection plate, and then through the air exit of annular air duct side, discharges from the exhaust pipe of box.

Further, in the embodiment of the invention, when the filter screen in the left filter cavity filters the dust, the wind force of the left filter cavity pushes the outer ring on the inner connecting plate of the left filter cavity, so that the outer ring compresses the resistance spring to move rightwards, the electric sheet is contacted with the conducting sheet to conduct the circuit, and finally the vibrator connected with the inner connecting plate of the right filter cavity is started to vibrate the filter screen in the right filter cavity to shake off the dust.

Similarly, when the filter screen in the right filter chamber filters the raise dust, the wind power is also utilized to push the conducting strip to be in contact with the conducting strip to conduct the circuit, and finally the vibrator is started to vibrate the filter screen in the right filter chamber to shake off the raise dust.

In order to achieve the third purpose, the invention adopts the following technical scheme: a production line comprising a transport line provided with a dust collecting device as described in one of the above objects.

Drawings

FIG. 1 is a schematic plan view of a dust collecting apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic view showing the structure of a dust collecting apparatus according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a bidirectional filter according to an embodiment of the present invention.

Fig. 4 is a partial structural schematic diagram of a bidirectional filter according to an embodiment of the present invention.

In the attached drawings

10. The device comprises a box body, 11, a suction hood, 12, a dust suction channel, 13, an exhaust pipe, 14, a dust collection bin, 15, a spiral reamer, 16, a driving motor, 17 and an air pressure sensor.

20. An induced draft fan 21 and fan blades;

30. the bidirectional filter comprises a bidirectional filter 301, a left filter cavity 302, a right filter cavity 303, a left inlet 304, a right inlet 305, a left outlet 306, a right outlet 31, an inner connecting plate 32, an outer connecting plate 321, a through opening 33, a filter screen 34, an annular groove 35, an air outlet 36, an annular groove 37, an annular body 38, an upper sealing plate 381, a through hole 39 and a lower sealing plate;

40. a discharge pipe 41 and a flexible hose.

50. The device comprises an outer ring 51, an inner ring 52, a resistance spring 53, a power supply sheet 54, a power supply sheet 55 and a vibrator;

60. and (7) conveying the line.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clear and fully described, embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of some embodiments of the invention and are not limiting of the invention, and that all other embodiments obtained by those of ordinary skill in the art without the exercise of inventive faculty are within the scope of the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "a," "an," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

For the purposes of simplicity and explanation, the principles of the embodiments are described by referring mainly to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. But it is obvious. To one of ordinary skill in the art, the embodiments may be practiced without limitation to these specific details. In some instances, well known dust collection methods and structures have not been described in detail to avoid unnecessarily obscuring the embodiments. In addition, all embodiments may be used in combination with each other.

The first embodiment is as follows:

a dust collecting device, as shown in figures 1 and 2, comprises a box body 10 and an induced draft fan 20 which are connected with each other, wherein the induced draft fan 20 is provided with a fan blade 21, the fan blade 21 is arranged in a suction hood 11 below the box body 10 and used for air draft, a dust suction channel 12 communicated with the suction hood 11 is arranged in the box body 10, and a two-way filter 30 is arranged in the box body 10.

As shown in FIG. 3, the two-way filter 30 comprises a left filter chamber 301 and a right filter chamber 302, the left filter chamber 301 is communicated with the dust suction passage 12 through a left inlet 303, the right filter chamber 302 is communicated with the dust suction passage 12 through a right inlet 304, a left outlet 305 is arranged under the left filter chamber 301, a right outlet 306 is arranged under the right filter chamber 302, and the left outlet 305 and the right outlet 306 are both communicated with the dust collecting bin 14 of the box body 10.

The inner sides of the left filtering cavity 301 and the right filtering cavity 302 are respectively provided with an inner connecting plate 31, the outer sides of the left filtering cavity 301 and the right filtering cavity 302 are respectively provided with an outer connecting plate 32, and an annular filter screen 33 is arranged between the inner connecting plate 31 and the outer connecting plate 32.

Bidirectional filter 30 is equipped with annular circulation wind groove 34, and circulation wind groove 34 surrounds left filter chamber 301 and right filter chamber 302, has seted up through-hole 321 on the outer fishplate bar 32, makes left filter chamber 301 and circulation wind groove 34 communicate through this through-hole 321 to and make right filter chamber 302 and circulation wind groove 34 communicate, and circulation wind groove 34 side is opened and is equipped with the air exit 35 that the aperture is less than through-hole 321, and air exit 35 communicates exhaust pipe 13 of box 10.

Sliding connection has last shrouding 38 and lower shrouding 39 in the two-way filter 30, go up shrouding 38 and be equipped with annular 36 down between shrouding 39, sliding connection has ring body 37 in annular 36, ring body 37 top left and right sides all is connected with last shrouding 38, ring body 37 below left and right sides all is connected with down shrouding 39, go up shrouding 38 and seted up through-hole 381, this through-hole 381 is used for making left filter chamber 301 or right filter chamber 302 intercommunication dust absorption way 12, ring body 37 is through the left side slip along annular 36, make the sealed right import of last shrouding 38 304 and make the sealed left exit 305 of shrouding 39 down, ring body 37 is through the right side slip along annular 36, make the sealed left import 303 of last shrouding 38 and open right 304 import, make shrouding 39 sealed right exit 306 of lower shrouding and open left exit 305 simultaneously.

The implementation steps are as follows: the ring 37 of the control duplex strainer 30 slides leftwardly along the groove 36, bringing the upper sealing plate 38 of the ring 37 into sealing engagement with the right inlet 304 and opening the left inlet 303, and bringing the lower sealing plate 39 of the ring 37 into sealing engagement with the right outlet 306 and sealing engagement with the left outlet 305.

Then the induced draft fan 20 is started to suck the dust under the suction hood 11 into the dust suction channel 12, so that the dust enters the left filter cavity 301 from the left inlet 303, the dust is filtered by the annular filter screen 33 in the left filter cavity 301, and the wind power passes through the filter screen 33 of the left filter cavity 301, enters the annular air groove 34 along the through hole 321 of the external connection plate 32, passes through the air outlet 35 at the side of the annular air groove 34, and is discharged from the exhaust pipe 13 of the box body 10.

When the annular filter screen 33 in the left filter cavity 301 is saturated, the control ring body 37 slides rightwards along the ring groove 36, the upper sealing plate 38 of the ring body 37 is driven to open the right inlet 304 and seal the left inlet 303, and the lower sealing plate 39 of the ring body 37 is driven to seal the right outlet 306 and open the left outlet 305.

At this time, the dust in the dust suction duct 12 enters the right filter chamber 302 from the right inlet 304 under the driving of the wind power, the dust is filtered by the annular filter screen 33 in the right filter chamber 302, the wind power passes through the filter screen 33 in the right filter chamber 302 and then enters the annular air groove 34 along the through port 321 of the external connection plate 32, and further passes through the air outlet 35 at the side of the annular air groove 34 and is discharged from the exhaust duct 13 of the box body 10.

Because the aperture of air exit 35 is less than opening 321, so wind-force in the annular air groove 34 not only can flow from air exit 35, still can flow along annular air groove 34, enters into left filter chamber 301, carries out the blowback to filter screen 33 in left filter chamber 301, blows off the raise dust on filter screen 33 in left filter chamber 301, makes the raise dust fall into in the dust collecting bin 14 from left export 305.

Similarly, when the filter screen 33 in the left filter cavity 301 filters the dust, part of the wind entering the circular air groove 34 from the left filter cavity 301 also flows into the right filter cavity 302, and blows back the filter screen 33 in the right filter cavity 302 to blow off the dust on the filter screen 33 in the right filter cavity 302, so that the dust falls into the dust collecting bin 14 from the right outlet 306.

The invention sets a bidirectional filter 30 in a box body 10, controls the opening and sealing of a left inlet 303, a left outlet 305, a right inlet 304 and a right outlet 306 by controlling the left and right movement of a ring body 37 of the bidirectional filter 30, so as to select to filter in a left filter cavity 301 or a right filter cavity 302, on the basis, a circular air groove 34 surrounding the left filter cavity 301 and the right filter cavity 302 is arranged in the bidirectional filter 30, and the aperture of an air outlet 35 at the side of the circular air groove 34 is set to be smaller than that of a through opening 321, so that no matter which filter screen 33 in the left filter cavity 301 and the right filter cavity 302 is filtering, the other filter screen 33 which is not filtering can be blown back by air after dust filtration, and the dust on the filter screen 33 falls into a dust collection bin 14. This is advantageous in that the dust collecting device can be made to suck and filter the dust at all times by means of a filter and a further blow-back. The problem of when transportation industrial raw materials, dust collecting equipment can't accomplish to absorb the raise dust on the belt always to lead to throwing into more dust collecting equipment, increase cost is solved.

As shown in figures 1 and 2, the suction hood 11 has a conical structure with a large lower part and a small upper part, and the suction hood 11 is fixed under the box body 10 through a detachable connection.

As shown in FIG. 2, a discharge pipe 40 is provided on the right side of the case 10, and the discharge pipe 40 communicates with the dust collecting bin 14.

As shown in fig. 3, a spiral reamer 15 is rotatably connected to the lower portion of the dust collecting bin 14, the shaft end of the spiral reamer 15 is connected to a driving motor 16, and the driving motor 16 drives the spiral reamer 15 to rotate so as to push dust particles to enter a discharge pipe 40 for discharge.

As shown in fig. 2 and 3, an expandable hose 41 is connected to a lower portion of the tapping pipe 40, and the expandable hose 41 is made of a rubber material and/or a steel material.

As shown in fig. 2, the ring groove 36 is connected with an air source pump or the ring body 37 is connected with a power motor, an air pressure sensor 17 is installed in the dust suction channel 12, and the air pressure sensor 17 is connected with the air source pump or the power motor in a wired or wireless communication mode.

And when the air pressure of the dust suction channel 12 reaches a preset height, the air pressure sensor 17 controls the air source pump to fill or suck the air into the annular groove 36 to control the annular body 37 to slide, or the air pressure sensor 17 controls the power motor to drive the annular body 37 to slide, so that the left inlet 303, the left outlet 305, the right inlet 304 and the right outlet 306 are controlled to be opened and sealed.

As shown in fig. 3 and 4, an outer ring 50 is slidably connected to the inner connecting plate 31, an inner ring 51 is fixedly connected to the inner connecting plate 31, a gap is formed between the outer ring 50 and the inner ring 51, a resistance spring 52 is arranged, an electric sheet 53 is arranged on the outer ring 50, a conducting sheet 54 is arranged on the inner ring 51, a gap is formed between the electric sheet 53 and the conducting sheet 54, the electric sheet 53 is connected with a power supply, a vibrator 55 is arranged on the inner connecting plate 31, and the vibrator 55 is connected with the conducting sheet 54.

When the filter screen 33 in the left filter cavity 301 filters the dust, the wind force of the left filter cavity 301 pushes the outer ring 50 on the inner connecting plate 31 of the left filter cavity 301, the outer ring 50 is pushed to compress the resistance spring 52 to move rightwards, the electric sheet 53 is further contacted with the conducting sheet 54 to conduct a circuit, finally, the vibrator 55 connected with the inner connecting plate 31 of the right filter cavity 302 is started, the filter screen 33 in the right filter cavity 302 is vibrated, the dust is shaken off, and the dust is matched with a back blowing mode, so that the dust is shaken off rapidly and powerfully.

Similarly, when the filter screen 33 in the right filter cavity 302 filters the dust, the wind power is also utilized to push the conductive sheet 53 to contact the conductive sheet 54 to conduct the circuit, so that the vibrator 55 is finally started to vibrate the filter screen 33 in the right filter cavity 302, shake off the dust, and form a cooperation with a back blowing mode, so that the dust can be quickly and powerfully shaken off.

Example two:

a dust collecting method applied to the dust collecting apparatus in the first embodiment, the dust collecting method comprising the steps of:

ring body 37 of bi-directional filter 30 is controlled to slide leftwardly along groove 36, bringing upper sealing plate 38 of ring body 37 into sealing engagement with right inlet 304 and opening left inlet 303, and bringing lower sealing plate 39 of ring body 37 into sealing engagement with right outlet 306 and left outlet 305.

At this time, the dust of the dust suction duct 12 enters the right filter cavity 302 from the right inlet 304 under the driving of wind power, the dust is filtered by the annular filter screen 33 in the right filter cavity 302, the wind power passes through the filter screen 33 in the right filter cavity 302 and then enters the annular air groove 34 along the through opening 321 of the external connection plate 32, and then the dust is discharged from the exhaust duct 13 of the box body 10 through the exhaust opening 35 at the side of the annular air groove 34.

Similarly, when the filter screen 33 in the left filter cavity 301 filters the dust, part of the wind power entering the annular wind groove 34 from the left filter cavity 301 also flows into the right filter cavity 302, and the filter screen 33 in the right filter cavity 302 is blown back to blow off the dust on the filter screen 33 in the right filter cavity 302, so that the dust falls into the dust collecting bin 14 from the right outlet 306.

When the filter screen 33 in the left filter cavity 301 filters the raised dust, the wind force of the left filter cavity 301 pushes the outer ring 50 on the inner connecting plate 31 of the left filter cavity 301, so that the outer ring 50 compresses the resistance spring 52 and moves rightward, the electric sheet 53 is further contacted with the conducting sheet 54 to conduct a circuit, and finally the vibrator 55 connected with the inner connecting plate 31 of the right filter cavity 302 is started to vibrate the filter screen 33 in the right filter cavity 302, so that the raised dust is shaken off.

Similarly, when the filter screen 33 in the right filter cavity 302 filters the dust, the electric sheet 53 is also pushed by wind power to contact with the conductive sheet 54 to conduct the circuit, and finally the vibrator 55 is started to vibrate the filter screen 33 in the right filter cavity 302, so as to shake off the dust.

Example three:

a production line, as shown in FIG. 1, includes a transport line 60, and the transport line 60 is provided with the dust collecting apparatus of the first embodiment.

Although the illustrative embodiments of the present invention have been described above to enable those skilled in the art to understand the present invention, the present invention is not limited to the scope of the embodiments, and it is apparent to those skilled in the art that all the inventive concepts using the present invention are protected as long as they can be changed within the spirit and scope of the present invention as defined and defined by the appended claims.

Claims

1. A dust collecting device comprises a box body and an induced draft fan which are connected with each other, wherein the induced draft fan is provided with a fan blade, the fan blade is arranged in a suction hood below the box body and used for air draft, and a dust suction channel communicated with the suction hood is arranged in the box body;

the bidirectional filter comprises a left filter chamber and a right filter chamber, the left filter chamber is communicated with the dust suction channel through a left inlet, the right filter chamber is communicated with the dust suction channel through a right inlet, a left outlet is formed in the lower part of the left filter chamber, a right outlet is formed in the lower part of the right filter chamber, and the left outlet and the right outlet are both communicated with the dust collection bin of the box body;

inner connecting plates are arranged on the inner sides of the left filtering cavity and the right filtering cavity, outer connecting plates are arranged on the outer sides of the left filtering cavity and the right filtering cavity, and an annular filter screen is arranged between the inner connecting plates and the outer connecting plates;

the bidirectional filter is provided with an annular air circulation groove, the annular air circulation groove surrounds the left filter cavity and the right filter cavity, an opening is formed in the outer connecting plate, the left filter cavity is communicated with the annular air circulation groove through the opening, the right filter cavity is communicated with the annular air circulation groove, an air outlet with the aperture smaller than that of the opening is formed in the side of the annular air circulation groove, and the air outlet is communicated with an exhaust pipe of the box body;

2. The dust collecting device as claimed in claim 1, wherein the suction hood has a conical structure with a larger bottom and a smaller top, and the suction hood is detachably connected and fixed below the box body.

3. The dust collecting apparatus as claimed in claim 1, wherein a discharge pipe is provided at a right side of the case body, and the discharge pipe is communicated with the dust collecting bin.

4. The dust collecting device as claimed in claim 3, wherein a spiral reamer is rotatably connected to the lower portion of the dust collecting bin, and the shaft end of the spiral reamer is connected to a driving motor, so that the spiral reamer is driven by the driving motor to rotate to push dust particles into the discharge pipe to be discharged.

5. The dust collecting device as claimed in claim 3, characterized in that an expansion hose is connected below the discharge pipe, wherein the expansion hose is made of a rubber material and/or a steel material.

6. The dust collecting apparatus as claimed in claim 1, wherein the ring groove is connected to an air source pump or the ring body is connected to a power motor, and an air pressure sensor is installed in the dust suction passage and connected to the air source pump or the power motor in a wired or wireless communication manner.

7. The dust collecting device of claim 1, wherein an outer ring is slidably connected to the inner connecting plate, an inner ring is fixedly connected to the inner connecting plate, a gap is formed between the outer ring and the inner ring, a resistance spring is arranged on the outer ring, an electric plate is arranged on the outer ring, a conducting plate is arranged on the inner ring, a gap is formed between the electric plate and the conducting plate, the electric plate is connected with a power supply, a vibrator is arranged on the side of the inner connecting plate, and the vibrator is connected with the conducting plate.

8. A dust collecting method applied to the dust collecting apparatus according to any one of claims 1 to 7, the dust collecting method comprising the steps of:

controlling a ring body in the bidirectional filter to slide along the ring groove leftwards, driving an upper sealing plate of the ring body to seal a right inlet and open a left inlet, and simultaneously driving a lower sealing plate of the ring body to open a right outlet and seal a left outlet;

then starting the induced draft fan to suck the raised dust under the suction hood into the dust suction channel, so that the raised dust enters the left filter cavity from the left inlet, the raised dust is filtered through the annular filter screen in the left filter cavity, and wind power passes through the filter screen of the left filter cavity and then enters the annular air groove along the through opening of the outer connecting plate, and is discharged from the exhaust pipe of the box body through the exhaust outlet at the side of the annular air groove;

when the filtration of the annular filter screen in the left filter cavity reaches saturation, the ring body is controlled to slide along the annular groove rightwards, the upper sealing plate of the ring body is driven to open the right inlet and seal the left inlet, and the lower sealing plate of the ring body is driven to seal the right outlet and open the left outlet;

at the moment, the dust of the dust suction channel enters the right filter cavity from the right inlet under the driving of wind power, the dust is filtered by the annular filter screen in the right filter cavity, the wind power penetrates through the filter screen in the right filter cavity and then enters the annular air groove along the through opening of the external connection plate, and then the dust is discharged from the exhaust pipe of the box body through the air outlet at the side of the annular air groove;

because the aperture of the air outlet is smaller than that of the through opening, the wind power in the annular air groove can not only flow out of the air outlet, but also flow along the annular air groove and enter the left filter cavity, and the filter screen in the left filter cavity is subjected to back blowing to blow off the raised dust on the filter screen in the left filter cavity, so that the raised dust falls into the dust collection bin from the left outlet;

9. The dust collecting method of claim 8, wherein when the dust collecting device of claim 7 is used, the wind force of the left filter chamber pushes the outer ring of the inner connecting plate of the left filter chamber to push the outer ring of the compression resistance spring of the outer ring to move right, so that the electric sheet is in contact with the conductive sheet to conduct the circuit, and finally the vibrator connected with the inner connecting plate of the right filter chamber is started to vibrate the filter screen in the right filter chamber to shake off the dust;

10. A production line comprising a transport line, characterized in that the transport line is provided with a dust collecting device according to any one of the preceding claims 1-7.