CN215232766U

CN215232766U - Ventilation dust collector

Info

Publication number: CN215232766U
Application number: CN202121280123.7U
Authority: CN
Inventors: 杨强; 杨汉卿; 毛嘉豪
Original assignee: Zhongche Tianjin Rail Transit Equipment Co ltd
Current assignee: Tianjin Zhongxin Rail Transit Equipment Co ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2021-12-21
Anticipated expiration: 2031-06-08

Abstract

The utility model relates to an air dust removal technical field discloses a ventilation dust collector, shell including the middle part link up, the upper and lower both ends of shell constitute air intake and air outlet, the both sides of shell are connected with the dust removal mouth respectively, fixed mounting has the baffle that the multiunit interval set up in the shell, the baffle is divided into a plurality of installation cavities, every with the inside equidistribution of shell install the air filter who is used for separating air impurity in the installation cavity, and the air that flows is got into by the air intake, filters through air filter, and the air that contains impurity is discharged through the dust removal mouth, and clean air is discharged through the air outlet. The device can provide clean air with large granule thing, small particle thing and floater and air separation steadily, and dust collection efficiency is high, satisfies the filterable demand of air when great air volume.

Description

Ventilation dust collector

Technical Field

The utility model relates to an air dust removal technical field, concretely relates to ventilation dust collector.

Background

In the current society, rail transportation means mainly comprise transportation carriers such as diesel locomotives, electric locomotives, motor train units, high-speed rails, carriages of passenger cars and trucks, light rails, subways and the like, and road transportation means mainly comprise automobiles. Their normal operation requires the intake of a large amount of air to meet the requirements of combustion of the internal combustion engine, heat dissipation of electronic and mechanical components, and cooling of air conditioning and other facilities. Along with the suction of a large amount of air, a large amount of impurities such as sand, catkin, plant leaves, paper scraps, plastics and the like exist in the air, the impurities enter the air, the abrasion is caused to an internal combustion engine and the like, the service life of the internal combustion engine is shortened, and an air filter is required to be installed in an air supply channel in order to prevent the impurities from entering the air supply channel.

The existing air filter mostly adopts centrifugal force to separate impurities from air, and then filters through a filter element, thereby obtaining clean air. Above-mentioned air cleaner utilizes centrifugal force can filter great particulate matter impurity, play certain dust removal effect, but can't detach tiny dust of tiny granule or the less impurity of proportion (especially plant piece, catkin, flotage such as poplar wadding), especially in the more season of float heavy or catkin, a large amount of flocculent impurities get into, easily cause air cleaner to block, reduce air filter's life, influence the use of equipment such as internal-combustion engine simultaneously, furthermore, current filtration filter dust collection efficiency is lower, the demand of removing dust when can not satisfy big ventilation volume.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a ventilation and dust removal device, the device can improve dust collection efficiency with large granule thing, little particulate matter and floater and air separation, satisfies the filterable demand of air when great air volume.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides a ventilation dust collector, includes the shell that the middle part link up, the upper and lower both ends of shell constitute air intake and air outlet, the both sides of shell are provided with the dust removal mouth respectively, fixed mounting has the baffle that the multiunit interval set up in the shell, the baffle is divided into a plurality of installation chambeies, every with the shell is inside equally divide the installation intracavity install the air filter who is used for separating air impurity, and the air that flows is got into by the air intake, filters through air filter, and the air that contains impurity is discharged through the dust removal mouth, and clean air is discharged through the air outlet.

The utility model discloses in, it is preferred air filter includes two guide plates that the structure is the same and the symmetry sets up, two interval between guide plate and the installation cavity lateral wall is crescent to air outlet one side by the air intake.

The utility model discloses in, it is further, two form the dust removal passageway between the guide plate, form the passageway of airing exhaust between every guide plate and the installation cavity, the air gets into the air separation that will contain impurity through the dust removal passageway from the air intake to discharge through the dust removal mouth, clean air gets into the passageway of airing exhaust through the guide plate, discharges through the air outlet.

The utility model discloses in, it is further, the end intercommunication of dust removal passageway has the dust exhaust passageway, the dust exhaust passageway with the dust removal mouth intercommunication.

The utility model discloses in, it is preferred, the guide plate includes the water conservancy diversion piece that a plurality of parallels and interval set up, the water conservancy diversion piece passes through the mounting bracket to be fixed on the baffle, form the water conservancy diversion passageway between per two water conservancy diversion pieces, clean air gets into the passageway of airing exhaust along the water conservancy diversion passageway.

The utility model discloses in, preferred, every distance between water conservancy diversion piece and the installation intracavity wall is crescent along the direction of air intake to air outlet.

The utility model discloses in, it is further, the vertical cross-section of water conservancy diversion piece is wing, the water conservancy diversion piece includes the drainage surface of outer convex and the water conservancy diversion face of level and smooth setting.

In the present invention, preferably, the vertical cross section of the flow deflector is rectangular, polygonal or arc.

The utility model discloses in, preferred, be close to air intake one side be equipped with a plurality of choked flow strips that are used for providing the resistance for the air current on the installation intracavity wall.

In the present invention, preferably, the choke strips are raised blocks.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a ventilation and dust removal device sets up the shell both sides into air intake and air outlet, realizes area air inlet and air-out, equally divide into a plurality of installation chambeies with the shell is inside through a plurality of baffles, makes air filter install in the installation intracavity, so, can realize that multiunit air filter installs dust removal work simultaneously side by side to improved dust collection efficiency, satisfied the filterable demand of air when great air volume.

The utility model discloses an air filter core air intake introduces mobile external air, and the air removes dust after flowing into the dust removal passageway, and clean air can get into the exhaust passage along the water conservancy diversion passageway and discharge, and the air that contains impurity can get back to the atmosphere through the dust removal mouth along with the air current discharge to realized the separation of clean air and impurity, provided clean air steadily, avoided the impurity of gathering to block up air dust collector, and can guarantee to normally work for a long time under the condition of not clearing up;

the utility model discloses in, the air gets into from the air intake, and the air flow rate of air intake is great relatively, along dust removal passageway to the dust removal mouth direction flow in-process, and air flow rate can reduce, and this scheme makes the interval between guide plate and the baffle by the air intake to air outlet one side crescent, at the air along the dust removal passageway flow in-process that narrows down gradually, the velocity of flow can not obviously descend to dust collection efficiency has further been promoted.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a perspective view of the present invention;

FIG. 3 is a sectional view of the structure of FIG. I;

FIG. 4 is a sectional view of the present invention, which is shown in FIG. II;

FIG. 5 is a schematic structural view of the dust removing port of the present invention;

fig. 6 is a schematic structural view of an airfoil-shaped guide vane of the present invention;

fig. 7 is a schematic view of the cross-sectional structure of the flow deflector surrounded by the linear flow deflectors of the present invention;

fig. 8 is a schematic view of the cross-sectional structure of the flow deflector enclosed by the arc-shaped flow deflectors of the present invention.

In the figure: 1. a housing; 2. an air inlet; 3. an air filter element; 30. a baffle; 300. a flow deflector; 300-1, a drainage surface; 300-2, a flow guide surface; 4. a dust removal port; 40. a communication plate; 400. a ventilation cavity; 41. a bump; 5. a dust removal channel; 50. a dust removal plate; 51. a cover plate; 6. an air exhaust channel; 7. a dust exhaust channel; 8. a mounting frame; 10. a flow guide channel; 11. an air outlet; 12. mounting a bar; 13. a partition plate; 14. a mounting cavity; 15. a flow-blocking strip.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to fig. 1 to 2 simultaneously, a preferred embodiment of the present invention provides a ventilation and dust removal device, which aims to provide an air filter that improves the dust removal efficiency and dust removal effect and meets the requirement of air filtration in large ventilation volume.

The utility model provides a ventilation dust collector, shell 1 including the middle part link up, the upper and lower both ends of shell 1 constitute air intake 2 and air outlet 11, the installation limit is stretched out to 2 side circumference of shell 1 air intake, a vent department for fixing the device at the transport means, the left and right sides of shell 1 is connected with dust removal mouth 4 respectively, fixed mounting has the baffle 13 that the multiunit interval set up in the shell 1, baffle 13 is a plurality of installation cavities 14 with 1 inside equalling of shell, install air filter 3 that is used for separating air impurity in every installation cavity 14, the air that flows is got into by air intake 2, filter through air filter 3, the air that contains impurity is discharged through dust removal mouth 4, clean air is discharged through air outlet 11.

Specifically, the utility model discloses in, set up 1 both sides of shell into air intake 2 and air outlet 11, realize area air inlet and air-out, equally divide into a plurality of installation cavities 14 with 1 inside of shell through a plurality of baffles 13, make air filter 3 install in installation cavity 14, so, can realize that multiunit air filter 3 side by side's installation carries out dust removal work simultaneously to improve dust collection efficiency, satisfied the filterable demand of air when great air volume.

The utility model discloses in, air filter element 3 includes two guide plates 30 that the structure is the same and the symmetry sets up, and this scheme adopts the guide plate 30 that two symmetries set up, and this guide plate 30's both sides and 14 inner wall contacts of installation cavity can not only make guide plate 30 both sides receive the holding power, make it connect stably, can prevent the air current dispersion simultaneously, make the air current flow along predetermined passageway. And the interval between two guide plates 30 and the 14 lateral walls of installation cavity is by air intake 2 to air outlet 11 one side crescent, because the air gets into from air intake 2, the air flow rate of air intake 2 is great relatively, the atmosphere is along the inside dust removal passageway 5 flow in-process of air filter 3, the gas velocity of flow can reduce, this scheme is through making the air flow along the dust removal passageway 5 flow in the air filter 3 that narrows down gradually, the velocity of flow can not obviously descend, thereby the speed that the air flows has increased relatively, the dust collection efficiency has been improved.

The utility model discloses in, it is further, as shown in fig. 3, form dust removal channel 5 between two guide plates 30, the terminal intercommunication of dust removal channel 5 has dust exhaust channel 7, dust exhaust channel 7 with dust removal mouth 4 intercommunication forms air exhaust channel 6 between every guide plate 30 and the installation cavity 14, and the air gets into the air separation that will contain impurity through dust removal channel 5 from air intake 2 to discharge from dust removal mouth 4 through dust exhaust channel 7.

The utility model discloses in, further, guide plate 30 includes a plurality of parallels and guide vane 300 that the interval set up, forms diversion channel 10 between per two guide vane 300, and clean air gets into exhaust passage 6 along diversion channel 10. Specifically, the distance between each flow deflector 300 and the inner wall of the installation cavity 14 gradually increases along the direction from the air inlet 2 to the air outlet 11, that is, the flow deflector 300 inclines towards the air inlet 2. The air in the flow guide channel 10 flows obliquely backwards relative to the air in the dust removing channel 5, so that a high-pressure area which is higher than the pressure of the central part of the air flow of the dust removing channel 5 is formed at the joint of the flow guide channel 10 and the dust removing channel 5, the high-pressure area can push the lighter impurities (such as floccules) which are entrapped in the air flow of the dust removing channel 5 and are close to the flow guide channel 10 back to the position of the center of the dust removing channel 5, so that the lighter impurities cannot enter the flow guide channel 10, and the lighter impurities can continuously move towards the dust discharging channel 7 along with the air flow. And if the heavier impurities (such as sand grains) entrained in the airflow of the dust removing channel 5 reach the flow guide channel 10, the heavier impurities impact the inner wall of the flow guide channel 10 (namely the surface of the flow guide sheet 300), are ejected back to the center of the dust removing channel 5, and keep moving towards the dust exhaust channel 7 due to the inertia of the heavier impurities, but do not move towards the flow guide channel 10 at the oblique rear. In addition, if impurities (such as rainwater) with large moisture are mixed in the airflow of the dust removing channel 5 and reach the guide channel 10, the inner wall of the guide channel 10 is atomized and then pushed back to the central position of the dust removing channel 5 by the airflow, so that the dust removing effect is further improved, and the impurities cannot enter the exhaust channel 6 along the guide channel 10.

In this embodiment, the working principle of the ventilation and dust removal device is as follows: when air flow with a certain speed exists in the outside air, the air inlet 2 faces the air flowing direction, so that the outside air enters the air filter element 3 from the air inlet 2. The outside air first enters the dust removing channel 5, and impurities exist in the air entering the dust removing channel 5. Because each guide plate 30 has a certain inclination angle, a certain resistance is generated to the airflow, so that the flow velocity of the side wall in each installation cavity 14 is slow, the wall pressure in the dust removing channel 5 is increased, namely the static pressure is increased, the relative flow velocity of the central position of the airflow in the dust removing channel 5 is fast, and the static pressure is small. Therefore, the impurities such as the particles, floccules, water drops and the like entrained by the airflow of the dust removing channel 5 flow along the central line direction of the dust removing channel 5 under the action of the wall pressure. And under the action of unequal static pressure, the impurities are easier to approach the direction of the central line of the dust removal channel 5, so that the impurities are more favorable to move to the dust discharge channel 7 and then are discharged from the dust removal port 4.

Meanwhile, in the dust removing channel 5, when passing through the position of the flow guide channel 10, a part of air enters the flow guide channel 10 and flows out of the air exhaust channel 6, and the part of air is clean air. The specific principle is as follows: when the airflow enters the guide channel 10 from the dust removing channel 5, part of energy is lost, so that the airflow speed in the guide channel 10 is slower than that in the dust removing channel 5. Therefore, when the air flow containing the impurities in the dust removing channel 5 approaches the guide channel 10, the attraction force at the guide channel 10 is small, and the inertia of the movement of the impurities cannot be overcome, that is, the air flow speed in the dust removing channel 5 is higher than the air flow speed in the guide channel 10, so the impurities cannot enter the guide channel 10, and the clean air and the impurities can be separated by themselves. Wherein, the ratio or difference of the airflow speed in the flow guide channel 10 and the airflow speed in the dust removal channel 5 can be adjusted by adjusting the difference of the cross sections of the two channels and adding power sources such as fans and the like at the channel openings.

Therefore, the clean air without impurities can enter the exhaust channel 6 from the flow guide channel 10, and the impurities such as particulate matters, floating matters and the like are collected to the dust exhaust channel 7 along with the airflow of the dust exhaust channel 5 and then are exhausted from the dust exhaust port 4, so that the clean air and the impurities are separated by utilizing the air filter element 3. The integral device is simple in structure and convenient to install, clean air is stably provided through the device, accumulated impurities are prevented from blocking the device, the trouble of manually cleaning the air dust removal device is eliminated, manpower, material resources and financial resources are saved, and long-time normal work under the condition of not cleaning can be guaranteed.

In the utility model discloses in another embodiment that provides, dust exhaust passage 7 includes two dust removal boards 50 and with dust removal board 50 fixed connection's apron 51, two dust removal boards 50 are close to two water conservancy diversion pieces 300 of air outlet 11 department respectively fixed connection with air filter 3, and dust removal passage 5 communicates with the dust removal mouth 4 of both sides, and the air that contains magazine gathers in dust exhaust passage 7 after flowing along dust removal passage 5, discharges back the atmosphere through dust removal mouth 4.

As preferred, dust removal plate 50 includes the drainage portion unanimous with water conservancy diversion piece 300 shape and with drainage portion integrated into one piece and vertical ascending dust exhaust portion, two dust exhaust portion upside fixed mounting apron 51, the drainage portion is the same with the structure of water conservancy diversion piece 300 to be connected in the design of dust removal passageway 5, and reduce the installation of water conservancy diversion piece 300, can extend dust removal plate 50 simultaneously again, so that the air that contains impurity flows out.

In the present invention, further, as shown in fig. 4, the flow deflectors 300 are fixed by a mounting frame 8, and the mounting frame 8 is fixed on the partition board 13. Specifically, 8 bottoms of mounting bracket can be directly fixed with 14 inner walls of installation cavity, set up a plurality of draw-in grooves with the outer terminal surface matched with of water conservancy diversion piece 300 on the mounting bracket 8, with water conservancy diversion piece 300 joint in the draw-in groove one by one to make the both sides of water conservancy diversion piece 300 offset with installation cavity 14, so, guarantee the stable installation of water conservancy diversion piece 300. In addition, the mounting frame 8 and the flow deflector 300 can be integrally formed, and when the mounting frame 8 is used, the mounting frame 8 can be directly fixed in the mounting cavity 14, so that the assembly can be completed.

In another preferred embodiment of the present invention, a mounting bar 12 extends out from the inner wall of the mounting cavity 14 near one side of the air inlet 2, and the mounting frame 8 is fixed on the mounting bar 12. Wherein, the shape of extension strip is unanimous with water conservancy diversion piece 300, not only can reduce the installation of water conservancy diversion piece 300, and the while can be convenient for mounting bracket 8 fixed, mounting bracket 8 sets up the middle part of guide plate 30, so, make water conservancy diversion piece 300 left and right sides atress even, whole assurance is stable.

In another preferred embodiment provided by the present invention, please refer to fig. 6, the vertical section of the flow deflector 300 is wing-shaped, the flow deflector 300 includes an outer convex-shaped flow guiding surface 300-1 and a smoothly arranged flow guiding surface 300-2, and the flow guiding surface 300-1 is smoothly connected to the flow guiding surface 300-2, the outer convex-shaped flow guiding surface 300-1 is a windward surface close to the dust removing channel 5, and the outer convex-shaped flow guiding surface 300-1 further increases the resistance of the airflow compared to the plane, so as to make the impurities as less as possible close to the flow guiding channel 10. Meanwhile, the outward convex flow guide surface 300-1 enables a high pressure area to be formed above the flow guide surface 300-2 more easily, and the high pressure area between two adjacent flow guide surfaces 300-1 has a certain repulsion function, so that impurities are kept on the center line position of the dust removal channel 5. Meanwhile, the annular flow deflectors 300 enable the impurities to be stressed uniformly without eccentricity, so that the impurities can be better concentrated on the central line of the dust removal channel 5.

In another preferred embodiment provided by the present invention, as shown in fig. 7 and 8, the axial cross section of the baffle 300 is a rectangular, arc or polygonal surface (not shown), and the processing process of the baffle 300 with regular and smooth shape is simple compared with that of the wing-shaped baffle 300, which is convenient for the production, use and installation of the baffle 300.

In another preferred embodiment that the utility model provides, be close to air intake 2 one side be equipped with a plurality of choked flow strips 15 that are used for providing the resistance for the air current on the 14 inner walls of installation cavity, wherein choked flow strips 15 are protruding piece, and after the air current got into from air intake 2, protruding piece provided certain resistance for the air current to increase the wall pressure of 14 both sides of installation cavity, make the impurity in the air current especially some flocculations under the effect of wall pressure, it is flowed to approaching to 5 central lines directions of dust removal passageway. The shape of the convex block is not limited too much, and can be trapezoidal, triangular, circular, semicircular or other irregular shapes, and only a certain flow velocity blocking effect can be achieved. Furthermore, the utility model discloses a protruding piece can be for setting up in succession or interval setting, and wherein, the protruding piece that the interval set up is compared to the protruding piece that sets up in succession can provide bigger resistance, specifically can set up according to actual need and the size of device in practical application.

In another preferred embodiment provided by the present invention, as shown in fig. 3, the choked flow strips 15 are arranged in a trapezoid shape, i.e. the cross section of the protruding block is trapezoid. For the relatively irregular shape, the processing technology of the regular-shaped convex blocks is simpler, and the practicability is stronger. The contact area between the convex block with the rectangular cross section and the air inlet 2 of the air inlet pipe is the largest, so that the air flow is blocked most, and the energy loss of the air flow is also the largest. And the triangular or circular shape has smaller resistance and relatively smaller energy loss. Therefore, as preferred scheme, the utility model discloses choose for use but the cross-section is trapezoidal protruding piece, trapezoidal inclined plane is relative with air intake 2, when guaranteeing to realize higher hindrance effect to the air current, reduces the energy loss to the air current.

In the utility model discloses in another preferred embodiment that provides, as shown in fig. 5, the intercommunication board 40 and the lug 41 that is located the middle of the intercommunication board 40 that are unanimous with shell 1 width are installed to shell 1 both sides, intercommunication board 40 is fixed in the shell 1 outside, and lug 41 and intercommunication board 40 integrated into one piece, the intercommunication board 40 has seted up the ventilation chamber 400, this ventilation chamber 400 and every dust exhaust passageway 7 intercommunication, dust removal opening 4 has been seted up at the middle part of lug 41, this dust removal opening 4 and ventilation chamber 400 intercommunication, so, the realization is all collected the impurity in every all the way dust exhaust passageway 7 is all through the dust removal opening 4 of both sides, be convenient for to the collection and the clearance of impurity.

The utility model discloses an in another embodiment, it is preferred, be connected with the induced air device that is used for accelerating the velocity of flow at dust removal mouth 4, the induced air device can be for fan, air pump etc. not only can provide power for dust exhaust passageway 7, has increased the speed that the air flows in the dust removal passageway 5, has further promoted dust collection efficiency, can guarantee again simultaneously that the velocity of flow of dust removal mouth 4 is greater than air outlet 11, has improved dust removal effect. Simultaneously, when the external air current that does not satisfy needs, then need artificial manufacturing air current to satisfy the needs of air filter equipment work, can set up the induced air device in air intake 2 department, make this device can not rely on external air current and remove impurity, derive clean air to make the application scene of this device more extensive, and realized that air velocity is adjustable, the working process is more high-efficient.

The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.

Claims

1. The utility model provides a ventilation dust collector, its characterized in that, includes shell (1) that the middle part link up, the upper and lower both ends of shell (1) constitute air intake (2) and air outlet (11), the both sides of shell (1) are provided with dust removal mouth (4) respectively, fixed mounting has baffle (13) that the multiunit interval set up in shell (1), baffle (13) are with shell (1) inside equant a plurality of installation cavity (14), every install air filter (3) that are used for separating air impurity in installation cavity (14), and the air that flows is got into by air intake (2), filters through air filter (3), and the air that contains impurity is discharged through dust removal mouth (4), and clean air is discharged through air outlet (11).

2. A ventilation and dust removal device as claimed in claim 1, wherein the air filter element (3) comprises two symmetrically arranged guide plates (30) with the same structure, and the distance between the two guide plates (30) and the side wall of the installation cavity (14) is gradually increased from the air inlet (2) to the air outlet (11).

3. A ventilating and dust-removing device according to claim 2, characterized in that a dust-removing channel (5) is formed between two said guide plates (30), an air exhaust channel (6) is formed between each guide plate (30) and the installation cavity (14), air enters from the air inlet (2) and is separated from impurities through the dust-removing channel (5) and is exhausted through the dust-removing opening (4), and clean air enters the air exhaust channel (6) through the guide plates (30) and is exhausted through the air outlet (11).

4. A ventilating dust-collecting device according to claim 3, characterized in that the end of the dust-collecting channel (5) is connected with a dust-discharging channel (7), and the dust-discharging channel (7) is connected with the dust-collecting opening (4).

5. A ventilating and dust-removing device according to claim 2, wherein the guide plate (30) comprises a plurality of guide plates (300) arranged in parallel and at intervals, the guide plates (300) are fixed on the partition plate (13) through a mounting frame (8), a guide channel (10) is formed between every two guide plates (300), and clean air enters the exhaust channel (6) along the guide channel (10).

6. A ventilating and dust-removing device according to claim 5, wherein the distance between each of said deflectors (300) and the inner wall of the installation cavity (14) increases gradually from the air inlet (2) to the air outlet (11).

7. An air-moving and dust-collecting device as claimed in claim 5, wherein the vertical cross-section of the guide vane (300) is wing-shaped, and the guide vane (300) comprises an outer convex guide surface (300-1) and a smoothly arranged guide surface (300-2).

8. A ventilating dust collecting device according to claim 5, characterized in that the vertical cross-section of the deflector (300) is rectangular, dog-leg or arc-shaped.

9. A ventilating and dust-removing device according to claim 6, characterized in that the inner wall of the installation cavity (14) near the air inlet (2) is provided with a plurality of flow blocking strips (15) for providing resistance to the air flow.

10. A ventilating dust collecting device according to claim 9, characterised in that the spoiler strips (15) are bumps.