CN214809226U

CN214809226U - Dust collector is used in building engineering construction

Info

Publication number: CN214809226U
Application number: CN202121167833.9U
Authority: CN
Inventors: 温新德
Original assignee: Guanlu Construction Co Ltd
Current assignee: Guanlu Construction Co Ltd
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2021-11-23
Anticipated expiration: 2031-05-28

Abstract

The application discloses dust collector for building engineering construction, including dust removal case, dust removal mouth, dust removal pipe, first threaded rod, first motor, filter hopper, dust fall board, booster valve, base, reposition of redundant personnel case, collection box, first water pump, shower nozzle, connecting pipe, second water pump, water tank, fixed plate, air exhauster, second threaded rod, rocker, scraper blade, rotor plate, filtration pore, second motor and inlet tube. The height of the dust removal port can be adjusted by the first threaded rod and the first motor, the dust removal range is changed, and the filter hopper and the spray head are favorable for collecting and cleaning dust; the second water pump can supply water for the spray head, the recovery tank and the first water pump are beneficial to recycling of waste water, and the second motor and the rotating plate are beneficial to cleaning of the interior of the filter hopper, so that the dust removal effect is improved; the pressure increasing valve is favorable for spraying water flow on the dust falling plate, the ground is kept moist, dust raised when the dust falling plate moves is reduced, the dust removing effect of the whole dust falling plate can be improved, and the dust falling plate is convenient to use.

Description

Dust collector is used in building engineering construction

Technical Field

The application relates to the field of building construction, in particular to a dust removal device for building engineering construction.

Background

The building engineering refers to an engineering entity formed by the construction of various building constructions and their auxiliary facilities and the installation of lines, pipelines and equipment matched with them. The house building is characterized by comprising a top cover, a beam column, a wall, a foundation and a project which can form an internal space and meet the requirements of people on production, living, study and public activities.

On-spot dust is more when the building construction, when utilizing dust collector to remove dust, the scope of dust removal is difficult for adjusting, and the dust is difficult for collecting and washing the processing, and the inconvenient recovery of waste water is recycled, and the dust is collected the difficult cleanness of department, and general dust removal structure can only adsorb the dust in the air, and the inconvenient dust fall to subaerial dust is handled, influences the dust removal effect of whole device. Therefore, a dust removal device for constructional engineering construction is provided for solving the problems.

Disclosure of Invention

The dust collector for the building engineering construction is provided in this embodiment and is arranged in solving the difficult regulation of dust removal scope among the prior art, and the dust is difficult for collecting and wasing, and the inconvenient recycle of waste water just inconveniently carries out the dust fall to ground, influences the dust removal effect's of whole device problem.

According to one aspect of the application, a dust removal device for building engineering construction is provided, which comprises a dust removal box, a dust removal mechanism and a dust removal auxiliary mechanism, wherein the bottom of the dust removal box is fixedly connected with a base, the side wall of the dust removal box is penetrated through by a water inlet pipe, and the water inlet pipe is fixedly connected to a water tank;

the dust removal mechanism comprises a dust removal port, a first motor and a filter hopper, the dust removal port is sleeved on a first threaded rod, the bottom end of the first threaded rod is fixedly connected with the first motor, the dust removal port is connected with a dust removal box in a sliding mode, a dust removal pipe is fixedly connected to the right side of the dust removal port and is fixedly connected to an exhaust fan, and the exhaust fan is fixedly connected to a fixed frame;

dust fall complementary unit installs in the filter hopper bottom, dust removal incasement chamber rigid coupling has the fixed plate, the overlap joint has the scraper blade on the fixed plate, sliding connection between scraper blade and the fixed plate.

Further, first motor rigid coupling is in dust removal case left side, the dust removal pipe of first motor top runs through dust removal case left side wall, dust removal pipe right side is provided with the water tank, the water tank rigid coupling is on the fixed plate, water tank one side rigid coupling has second water pump one end, second water pump other end rigid coupling is on the shower nozzle.

Furthermore, a fixed frame is fixedly connected to the top of the filter hopper, a spray head is fixedly connected to the inner wall of the fixed frame, a rotating plate is mounted at the bottom of the spray head and is rotatably connected with the filter hopper in a sleeved mode, and filter holes are formed in the rotating plate.

Furthermore, a second motor is fixedly connected to the bottom of the filter hopper, an output shaft of the second motor is fixedly connected to the bottom of the rotating plate, and the thickness of the rotating plate is larger than that of the filter hopper.

Further, the dust removal case lateral wall is run through by the rocker, the rocker rigid coupling is in second threaded rod one end, the second threaded rod other end cup joints on the fixed plate, the scraper blade has been cup jointed on the second threaded rod, the scraper blade is located the air exhauster below.

Furthermore, a filter plate is embedded in the fixed plate, a fixed frame is fixedly connected to the top of the fixed plate and located above the filter plate, and the size of the fixed frame is larger than that of the scraper.

Further, water tank one side rigid coupling has the connecting pipe, the connecting pipe bottom runs through the fixed plate after the rigid coupling on first water pump, first water pump rigid coupling is on the collection box, first water pump rigid coupling is at the collection box top, just first water pump bottom and collection box intercommunication.

Further, dust fall complementary unit includes dust fall board, pressure boost valve and reposition of redundant personnel case, dust fall board rigid coupling is on dust removal off-box lateral wall, the rigid coupling has the dust fall mouth on the dust fall board, one side rigid coupling that the dust fall mouth was kept away from to the dust fall board has Z type water pipe, install the pressure boost valve on the Z type water pipe.

Further, the reposition of redundant personnel case rigid coupling is in dust removal incasement chamber bottom, reposition of redundant personnel case left side and Z type water pipe intercommunication, reposition of redundant personnel roof portion and filtration fill intercommunication, reposition of redundant personnel incasement internally mounted has the filter screen.

Further, dust removal incasement chamber bottom rigid coupling has the collection box, the collection box left side and reposition of redundant personnel case intercommunication, just the size of collection box is less than the reposition of redundant personnel case.

Through the above-mentioned embodiment of this application, adopted dust removal mechanism and dust fall complementary unit, solved the difficult regulation of dust removal scope, the dust is difficult for collecting and washing and inconvenient carry out the problem of dust fall to ground, and it is adjustable to have gained the dust removal scope, and the dust is convenient for collect and wash, can handle the effect of ground dust fall.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic perspective view of an embodiment of the present application;

FIG. 2 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 3 is a schematic top view of a fixing plate structure according to an embodiment of the present application;

FIG. 4 is a schematic view of a rotating plate according to an embodiment of the present application;

fig. 5 is a schematic view of a portion of the enlarged structure at a in fig. 2 according to an embodiment of the present application.

In the figure: 1. the dust removal device comprises a dust removal box, 2, a dust removal opening, 201, a dust removal pipe, 3, a first threaded rod, 4, a first motor, 5, a filter hopper, 6, a dust removal plate, 7, a pressure increasing valve, 8, a base, 9, a flow dividing box, 10, a recovery box, 11, a first water pump, 12, a spray head, 13, a connecting pipe, 14, a second water pump, 15, a water tank, 16, a fixing plate, 17, an exhaust fan, 18, a second threaded rod, 19, a rocker, 20, a scraper, 21, a rotating plate, 2101, a filter hole, 22, a second motor, 23 and a water inlet pipe.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, 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 only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

The dust removing device in this embodiment can be applied to various exhaust fans, for example, the following exhaust fan is provided in this embodiment, and the dust removing device in this embodiment can be used to install the following exhaust fan.

This air exhauster includes: the side of the exhaust fan shell is provided with an air outlet, the exhaust fan shell comprises a front cover and a rear cover, the motor is connected with the wind wheel and fixed on the rear cover together, the front cover is provided with an air inlet, the wind wheel comprises a wind wheel body, and the wheel surface of the wind wheel body is the wind wheel air outlet. The wind wheel body comprises a front cover plate, a rear cover plate and wind wheel blades connected between the two cover plates, and an opening used as a wind wheel air inlet is formed in the middle of the front cover plate and in the axial direction of the wind wheel. The wind wheel blade of connection between two apron divide into long wind wheel blade group and short wind wheel blade group, the leading flank and the front shroud of each wind wheel blade link to each other, the trailing flank and the back shroud of each wind wheel blade link to each other, the arc length of each wind wheel blade of long wind wheel blade group is greater than the arc length of each wind wheel blade of short wind wheel blade group, wherein two adjacent wind wheel blades form an wind channel in the long wind wheel blade group, the wind channel comprises entrance portion, afterbody region and middle part region, and its cross sectional area of wind channel free entrance portion to afterbody region increases gradually, the regional wind wheel blade who all is equipped with an at least circular arc type in the afterbody of each wind channel forms the wind channel, the regional wind wheel blade of afterbody in each wind channel constitutes short wind wheel blade group.

The middle part of back shroud is equipped with the cavity that holds that is used for fixed motor housing, holds and leaves the opening on the cavity, holds the cavity and is located the wind wheel originally internally. The distances between the head ends of the wind wheel blades of the long wind wheel blade group and the center of the rotating shaft of the rear cover plate are equal, the front side faces of the head ends of the wind wheel blades of the long wind wheel blade group start from the middle part of the front cover plate and are used as openings of wind wheel air inlets and gradually transited to the rear side part, the front side faces of the tail ends of the wind wheel blades of the long wind wheel blade group are parallel and level to the outer edge of the front cover plate, the rear side faces are parallel and level to the outer edge of the rear cover plate, and the head ends of the wind wheel blades of the long wind wheel blade group are located beside the side containing cavity and are spaced from the outer side wall surface of the containing cavity.

Install motor housing in holding the cavity, be fixed with motor spindle on the motor housing, particularly, motor housing arranges in and holds the cavity, fixes with the riveted mode between motor housing and the motor spindle, and the wind wheel body passes through on the nut locking motor spindle to finally form a motor wind wheel.

The motor wind wheel is placed into a motor fixing seat and is installed and fixed through a nylon clamping ring clamped on the motor fixing seat, a motor stator is clamped on the motor fixing seat, bearings are installed at two ends of a motor spindle, and finally a motor wind wheel unit structure is formed.

The motor wind wheel unit structure in the exhaust fan generates air inlet and air outlet to enable air circulation, the panel frame is connected with the exhaust fan main body and acts as a panel, and the panel has the functions of attractiveness and dust shielding. The safety lock is a safety device, so that the whole machine is fixed with the keel frame. The installation mode of the whole machine is as follows: the exhaust fan main body is fixed with the panel after being connected with the panel frame, then the safety lock is installed on the panel frame, the fan frame is aligned with the keel clamping groove, the keel is clamped into the fan frame forcibly, and then the top column of the safety lock is pressed down to push the fan frame outwards until the fan frame is locked.

Of course, other structures of the exhaust fan can be installed in the embodiment. The description is omitted, and the dust removing device of the embodiment of the application is introduced below.

Referring to fig. 1-5, a dust removing device for building engineering construction comprises a dust removing box 1, a dust removing mechanism and a dust-settling auxiliary mechanism, wherein a base 8 is fixedly connected to the bottom of the dust removing box 1, a water inlet pipe 23 penetrates through the side wall of the dust removing box 1, and the water inlet pipe 23 is fixedly connected to a water tank 15 and is beneficial to water supplement of the water tank 15;

the dust removal mechanism comprises a dust removal port 2, a first motor 4 and a filter hopper 5, the dust removal port 2 is sleeved on a first threaded rod 3, the first motor 4 is fixedly connected to the bottom end of the first threaded rod 3, the dust removal port 2 is in sliding connection with a dust removal box 1, a dust removal pipe 201 is fixedly connected to the right side of the dust removal port 2, the dust removal pipe 201 is fixedly connected to an exhaust fan 17, and the exhaust fan 17 is fixedly connected to a fixed frame to facilitate the exhaust fan 17 to extract external dust;

dust fall complementary unit installs in 5 bottoms of filter hopper, 1 inner chamber rigid coupling of dust removal case has fixed plate 16, the overlap joint has scraper blade 20 on fixed plate 16, sliding connection between scraper blade 20 and the fixed plate 16 does benefit to and clears away the dust that drops on fixed plate 16.

The first motor 4 is fixedly connected to the left side of the dust removal box 1, the dust removal pipe 201 above the first motor 4 penetrates through the left side wall of the dust removal box 1, the water tank 15 is arranged on the right side of the dust removal pipe 201, the water tank 15 is fixedly connected to the fixing plate 16, one side of the water tank 15 is fixedly connected with one end of the second water pump 14, the other end of the second water pump 14 is fixedly connected to the spray head 12, and the second water pump 14 can accelerate the flow of water flow; the top of the filter hopper 5 is fixedly connected with a fixed frame, the inner wall of the fixed frame is fixedly connected with a spray head 12, the bottom of the spray head 12 is provided with a rotating plate 21, the rotating plate 21 is sleeved in the filter hopper 5 and is rotatably connected with the filter hopper 5, and the rotating plate 21 is provided with a filter hole 2101 for facilitating the rotation of the rotating plate 21 in the filter hopper 5; the bottom of the filter hopper 5 is fixedly connected with a second motor 22, an output shaft of the second motor 22 is fixedly connected to the bottom of the rotating plate 21, and the thickness of the rotating plate 21 is larger than that of the filter hopper 5, so that the second motor 22 can drive the rotating plate 21 to rotate conveniently; the side wall of the dust removal box 1 is penetrated through by a rocker 19, the rocker 19 is fixedly connected to one end of a second threaded rod 18, the other end of the second threaded rod 18 is sleeved on a fixed plate 16, a scraper 20 is sleeved on the second threaded rod 18, and the scraper 20 is positioned below an exhaust fan 17, so that the second threaded rod 18 can drive the scraper 20 to rotate; a filter plate is embedded in the fixed plate 16, a fixed frame is fixedly connected to the top of the fixed plate 16 and is positioned above the filter plate, and the size of the fixed frame is larger than that of the scraper 20, so that the fixed frame can support the bottom of the exhaust fan 17 conveniently; a connecting pipe 13 is fixedly connected to one side of the water tank 15, the bottom end of the connecting pipe 13 penetrates through a fixing plate 16 and then is fixedly connected to a first water pump 11, the first water pump 11 is fixedly connected to the recycling tank 10, the first water pump 11 is fixedly connected to the top of the recycling tank 10, and the bottom of the first water pump 11 is communicated with the recycling tank 10, so that the first water pump 11 is conveniently connected with the recycling tank 10; the dust-settling auxiliary mechanism comprises a dust-settling plate 6, a pressure increasing valve 7 and a flow dividing box 9, wherein the dust-settling plate 6 is fixedly connected to the outer side wall of the dust-settling box 1, a dust-settling opening is fixedly connected to the dust-settling plate 6, one side, far away from the dust-settling opening, of the dust-settling plate 6 is fixedly connected with a Z-shaped water pipe, and the pressure increasing valve 7 is mounted on the Z-shaped water pipe and facilitates water supply to the dust-settling plate 6; the flow distribution box 9 is fixedly connected to the bottom of the inner cavity of the dust removal box 1, the left side of the flow distribution box 9 is communicated with the Z-shaped water pipe, the top of the flow distribution box 9 is communicated with the filtering hopper 5, and a filtering screen is arranged in the flow distribution box 9, so that sewage can be filtered conveniently; 1 inner chamber bottom rigid coupling of dust removal case has collection box 10, collection box 10 left side and reposition of redundant personnel case 9 intercommunication, just collection box 10's size is less than reposition of redundant personnel case 9, and collection box 10 of being convenient for is at 1 internally mounted of dust removal case and use.

When the utility model is used, the electrical components in the application are externally connected with a power supply and a control switch when in use, firstly, the whole device is moved by wheels on the base 8, the first motor 4 drives the first threaded rod 3 to rotate, the height of the dust removal port 2 is adjusted, the dust can be sucked by the dust removal port 2 through the exhaust fan 17 and the dust removal pipe 201, the dust is sent to the filter plate of the fixed plate 16 through the cavity at the bottom of the fixed frame, the redundant air is discharged through the heat dissipation holes on the side wall of the dust removal box 1, the air pressure in the dust removal box 1 is kept stable, the rocker 19 is rotated, the residual dust on the filter plate falls into the filter hopper 5 through the scraper blade 20, the water in the water tank 15 can be sent to the spray head 12 by the second water pump 14 to wash the dust, the sewage enters the diversion box 9, after the filtration treatment of the filter screen, the sewage is recovered into the water tank 15 through the recovery box 10 and the first water pump 11, and can be sprayed out through the booster valve 7 and the dust removal plate 6, reduce subaerial dust, when second motor 22 drove rotor plate 21 and rotates, be convenient for wash remaining impurity on the rotor plate 21, reduce the dust and at the inside piling up of filter 5.

The application has the advantages that:

1. the dust removal device is simple to operate, the height of the dust removal port 2 can be adjusted by the first threaded rod 3 and the first motor 4, the dust removal range is changed, the fixed plate 16 and the scraper 20 reduce the residue of dust during dust discharge, and the filter hopper 5 and the spray head 12 are beneficial to dust collection and cleaning treatment;

2. the water supply device is reasonable in structure, the second water pump 14 can supply water for the spray head 12, the recovery tank 10 and the first water pump 11 are beneficial to recycling of waste water, the diversion tank 9 is beneficial to diversion of water flow, the second motor 22 and the rotating plate 21 are beneficial to cleaning of the interior of the filter hopper 5, and the dust removal effect is improved;

3. pressure-increasing valve 7 does benefit to dust fall board 6 spun rivers, keeps ground moist, and the dust of raising when reducing the device and removing, dust fall board 6 can improve the dust removal effect of whole device, and inlet tube 23 does benefit to the replenishment of the inside rivers of water tank 15, the use of the whole device of being convenient for.

It is well within the skill of those in the art to implement, without undue experimentation, the present application is not directed to software and process improvements, as they relate to circuits and electronic components and modules.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a dust collector for building engineering construction which characterized in that: the dust removal device comprises a dust removal box (1), a dust removal mechanism and a dust removal auxiliary mechanism, wherein a base (8) is fixedly connected to the bottom of the dust removal box (1), the side wall of the dust removal box (1) is penetrated through by a water inlet pipe (23), and the water inlet pipe (23) is fixedly connected to a water tank (15);

the dust removal mechanism comprises a dust removal port (2), a first motor (4) and a filter hopper (5), the dust removal port (2) is sleeved on a first threaded rod (3), the bottom end of the first threaded rod (3) is fixedly connected with the first motor (4), the dust removal port (2) is in sliding connection with a dust removal box (1), a dust removal pipe (201) is fixedly connected to the right side of the dust removal port (2), the dust removal pipe (201) is fixedly connected to an exhaust fan (17), and the exhaust fan (17) is fixedly connected to a fixed frame;

dust fall complementary unit installs in filter hopper (5) bottom, dust removal case (1) inner chamber rigid coupling has fixed plate (16), the overlap joint has scraper blade (20) on fixed plate (16), sliding connection between scraper blade (20) and fixed plate (16).

2. The dust removing device for constructional engineering construction as claimed in claim 1, wherein: first motor (4) rigid coupling is in dust removal case (1) left side, dust removal pipe (201) of first motor (4) top runs through dust removal case (1) left side wall, dust removal pipe (201) right side is provided with water tank (15), water tank (15) rigid coupling is on fixed plate (16), water tank (15) one side rigid coupling has second water pump (14) one end, second water pump (14) other end rigid coupling is on shower nozzle (12).

3. The dust removing device for constructional engineering construction as claimed in claim 1, wherein: filter hopper (5) top rigid coupling has fixed frame, the rigid coupling has shower nozzle (12) on the fixed frame inner wall, rotor plate (21) are installed to shower nozzle (12) bottom, rotor plate (21) cup joint in filter hopper (5) and filter hopper (5) between rotate and be connected, filter hole (2101) have been seted up on rotor plate (21).

4. The dust removing device for constructional engineering construction as claimed in claim 1, wherein: the bottom of the filter hopper (5) is fixedly connected with a second motor (22), an output shaft of the second motor (22) is fixedly connected to the bottom of the rotating plate (21), and the thickness of the rotating plate (21) is larger than that of the filter hopper (5).

5. The dust removing device for constructional engineering construction as claimed in claim 1, wherein: dust removal case (1) lateral wall is run through by rocker (19), rocker (19) rigid coupling is in second threaded rod (18) one end, second threaded rod (18) other end cup joints on fixed plate (16), scraper blade (20) have been cup jointed on second threaded rod (18), scraper blade (20) are located air exhauster (17) below.

6. The dust removing device for constructional engineering construction as claimed in claim 1, wherein: the fixed plate (16) is embedded with a filter plate, the top of the fixed plate (16) is fixedly connected with a fixed frame, the fixed frame is positioned above the filter plate, and the size of the fixed frame is larger than the scraper (20).

7. The dust removing device for constructional engineering construction as claimed in claim 1, wherein: connecting pipe (13) has been connected to water tank (15) one side rigid coupling, the rigid coupling is on first water pump (11) after fixed plate (16) is run through to connecting pipe (13) bottom, first water pump (11) rigid coupling is on collection box (10), first water pump (11) rigid coupling is at collection box (10) top, just first water pump (11) bottom and collection box (10) intercommunication.

8. The dust removing device for constructional engineering construction as claimed in claim 1, wherein: dust fall complementary unit includes dust fall board (6), booster valve (7) and reposition of redundant personnel case (9), dust fall board (6) rigid coupling is on dust removal case (1) lateral wall, the rigid coupling has the dust fall mouth on dust fall board (6), one side rigid coupling that the dust fall mouth was kept away from in dust fall board (6) has Z type water pipe, install booster valve (7) on the Z type water pipe.

9. The dust removing device for construction engineering according to claim 8, wherein: flow distribution box (9) rigid coupling is in dust removal case (1) inner chamber bottom, flow distribution box (9) left side and Z type water pipe intercommunication, flow distribution box (9) top and filter hopper (5) intercommunication, flow distribution box (9) internally mounted has the filter screen.

10. The dust removing device for constructional engineering construction as claimed in claim 1, wherein: dust removal case (1) inner chamber bottom rigid coupling has collection box (10), collection box (10) left side and reposition of redundant personnel case (9) intercommunication, just the size of collection box (10) is less than reposition of redundant personnel case (9).