CN116517609A - Dust removal equipment and dust removal system for air dust removal in tunnel - Google Patents

Abstract

The invention relates to the technical field of tunnel dust removal, in particular to dust removal equipment for removing dust from air in a tunnel. The special-shaped storage bracket comprises a first inclined part and a second inclined part. The first tilting portion top terminal surface is provided with scraper means, and scraper means can scrape the dust downwards to the second tilting portion. The included angle between the second inclined part and the bottom wall of the box body ranges from 60 degrees to 75 degrees. Through all having increased the dysmorphism in the both sides of the bottom of box main part and deposited the support, this dysmorphism deposits the support and has first tilting part and second tilting part, scrapes the dust that falls into at first tilting part through scraper means and send to the second tilting part, and the contained angle scope between second tilting part and the box main part diapire is between 60 ° -75 in addition to make the dust free-fall on the ash discharge device in the second tilting part, the contained angle between second tilting part and the box main part diapire is greater than 55 makes the dust mobility good.

Description

Dust removal equipment and dust removal system for air dust removal in tunnel

Technical Field

The invention relates to the technical field of tunnel dust removal, in particular to dust removal equipment and a dust removal system for air dust removal in a tunnel.

Background

In the tunneling construction process, the tunnel is usually required to be blasted, so that a large amount of dust is easily generated in the tunnel. Because the tunnel belongs to a semi-closed space, generated dust is not easy to discharge, and in addition, if the dust concentration in the tunnel is too high, the physical and psychological health of site constructors can be seriously harmed, and the tunnel construction efficiency is reduced; if the dust is discharged into the atmosphere directly through the tunnel portal without treatment, the atmosphere environment is seriously polluted.

In addition, along with the rapid development of traffic industry in China, the acceleration of highway and railway construction steps brings higher requirements on safety, quality, work efficiency and the like in the tunnel construction process, and the mechanization, specialization and intellectualization of tunnel construction are the necessary trend of development. At present, in the tunnel construction of China, the existing dust falling mode is mostly sprinkling dust falling, even only relies on ventilation and dust removal, in fact, the two dust falling effects are time-consuming and labor-consuming, the dust falling effect is poor, and the tunnel dust concentration is difficult to control within the construction environment industry standard specified in China.

At present, a movable dust removing device is generally adopted to remove dust from a tunnel, the dust removing device is provided with a dust collecting opening, and dust in the tunnel can be sucked into a dust removing box body through the dust collecting opening under the suction force of a fan. Specifically, a plurality of filter cartridges which are arranged at intervals are arranged in the dust removal box body, the microstructure of the filter cartridge is a net-shaped material, and the diameter of the filter cartridge is smaller than that of dust particles. The cleaned air is exhausted through the equipment top gap and dust is blocked off the exterior surface of the filter cartridge. Along with the long-time use of the filter cylinder, the blocked dust falls into the bottom of the inner side wall of the dust removing box body under the action of gravity, and the dust falling into the dust removing box body is discharged through the dust discharging device at the bottom of the dust removing box body, so that the integral tunnel dust removing is completed.

But at present, the bottom of the dust removing box body is generally in a truncated cone-shaped structure, namely, a certain angle exists between the plane of the bottom of the part of the dust removing box body and the side wall of the dust removing box body, and the angle is about 30 degrees, but the setting of the angle is obviously too small, so that after the equipment works for a period of time, dust is rapidly accumulated on the inclined surface of the side wall, and the dust cannot slide to the vicinity of a screw machine of the dust discharging device by virtue of the dust, so that the problem of poor dust discharging effect is caused. If the angle between the plane of the bottom of the dust removing box body and the side wall of the dust removing box body is increased, the overall dust removing box body is too high, and once the dust removing box body is too high, the height of the overall dust removing equipment can be influenced, so that the dust removing box body cannot be moved and transported on a highway, and the dust removing of a tunnel is difficult to complete.

Disclosure of Invention

First, the technical problem to be solved

In view of the above-mentioned shortcomings and disadvantages of the prior art, the present invention provides a dust removal device and a dust removal system for removing dust from air in a tunnel, which solve the technical problems that the angle between the plane at the bottom of a dust removal box and the side wall of the dust removal box is obviously too small, so that dust is rapidly accumulated on the inclined plane of the side wall after the device works for a period of time, and the dust cannot slide to the vicinity of a screw machine of an ash discharge device by itself, thereby resulting in poor ash discharge effect.

(II) technical scheme

In order to achieve the above purpose, the main technical scheme adopted by the invention comprises the following steps:

on one hand, the embodiment of the invention provides dust removing equipment for removing dust from air in a tunnel, which comprises a box body, a filtering device, an ash discharging device and two special-shaped storage brackets which are respectively arranged at the bottom of the box body and are used for containing dust;

the special-shaped storage bracket comprises a first inclined part and a second inclined part which are arranged up and down;

the top end face of the first inclined part is provided with scraper devices which are distributed along the length direction of the box body, and the scraper devices can scrape dust on the first inclined part downwards to the second inclined part;

the included angle between the second inclined part and the bottom wall of the box body ranges from 60 degrees to 75 degrees, so that dust on the second inclined part freely slides onto the ash discharging device to be discharged.

Optionally, the first incline includes a landslide incline segment and a transition incline segment;

the top edge of the landslide inclined section is fixedly connected with the inner side wall of the box body, the bottom edge of the landslide inclined section is integrally connected with the top edge of the transition inclined section, and an included angle between the landslide inclined section and the transition inclined section is an obtuse angle;

the bottom edge of the transition inclined section and the top edge of the second inclined part are integrally formed, and an included angle between the transition inclined section and the bottom wall of the box body is smaller than 55 degrees.

Optionally, an included angle between the landslide inclined section and the transition inclined section is 135 degrees, and a joint between the landslide inclined section and the transition inclined section is bent outwards; the included angle between the transition inclined section and the bottom wall of the box body is 15 degrees.

Optionally, the ash discharging device comprises two ash discharging mechanisms; the two ash discharging mechanisms are arranged at the bottom of the box body;

the ash discharging mechanism comprises a speed reducer, a screw machine and an ash discharging port;

the speed reducer is arranged outside the box body, the output end of the speed reducer is connected with one end of the screw machine, and the other end of the screw machine extends along the length direction of the box body and is rotatably arranged at one end of the inner side wall of the box body;

the ash discharge port is formed in the bottom wall of the box body, the screw machine is arranged at the ash discharge port, and the speed reducer can drive the screw machine to rotate relative to the box body so as to discharge dust.

Optionally, the scraper device comprises a first scraper mechanism and a second scraper mechanism;

the scrapers on the first scraper mechanism and the scrapers on the second scraper mechanism are configured to move relatively or oppositely.

Optionally, the first scraper mechanism comprises a first transmission assembly, a direction adjustment structural assembly, a second transmission assembly and a first scraper;

one end of the first transmission assembly is sleeved on the outer side wall of the screw machine, and the other end of the first transmission assembly is connected with the second transmission assembly through the direction adjusting structure assembly;

the screw machine rotates along a first direction so as to drive the first transmission assembly to rotate along the first direction, and the first transmission assembly drives the second transmission assembly to rotate along the direction opposite to the first direction through the direction adjustment structure assembly;

the first scraping plate is arranged on the second transmission assembly, and the second transmission assembly drives the first scraping plate to slide along the opposite direction of the first direction.

Optionally, the first transmission assembly comprises a first sprocket, a second sprocket and a first transmission chain with two ends meshed with the first sprocket and the second sprocket respectively, the first sprocket is sleeved on the screw machine, and the second sprocket is rotatably installed at one end of the direction adjustment structure assembly through a connecting shaft;

the second transmission assembly comprises a third sprocket, a fourth sprocket and a second transmission chain, wherein two ends of the second transmission chain are respectively meshed with the third sprocket and the fourth sprocket, the third sprocket is rotatably installed at the other end of the direction adjustment structure assembly through a connecting shaft, a mounting plate is fixedly installed on the transition inclined section, the second sprocket, the third sprocket and the fourth sprocket are respectively rotatably installed on one side wall of the mounting plate through connecting shafts, and the first scraping plate is fixedly installed on the second transmission chain.

Optionally, the direction adjustment structure assembly includes two first adjustment direction gears and second adjustment direction gears that intermesh, rotate relatively or in opposite directions between the two, just first adjustment direction gears with second sprocket fixed mounting is on same connecting axle, second adjustment direction gears with third sprocket fixed mounting is on same connecting axle.

Optionally, the second scraper mechanism comprises a fifth sprocket sleeved with another screw machine, and the rotation direction of the fifth sprocket is the same as that of the first sprocket;

the other transition inclined section is fixedly provided with a connecting plate, the second scraping plate mechanism further comprises a sixth chain wheel arranged at one end of the connecting plate, a seventh chain wheel coaxially arranged with the sixth chain wheel, an eighth chain wheel arranged at the other end of the connecting plate and a second scraping plate; the fifth sprocket is connected with the sixth sprocket through a third transmission chain, the seventh sprocket is connected with the eighth sprocket through a fourth transmission chain, and the transmission direction of the fourth transmission chain is opposite to that of the second transmission chain;

the second scraping plate is fixedly arranged on the fourth transmission chain.

On the other hand, the dust removing system comprises the dust removing equipment for removing dust from the air in the tunnel, and further comprises an axial flow fan, a cable drum, an air guiding device and an automobile chassis assembly;

the automobile chassis assembly is provided with a chassis, and the dust removing equipment, the axial flow fan, the cable drum and the air guide device are all arranged on the chassis;

the axial flow fan is connected with a distribution box on the automobile chassis assembly through the cable drum, and a dust collection opening is formed in the box body of the dust collection device;

the air guide device is arranged at one end, close to the cab, of the automobile chassis assembly, dust in a tunnel can be guided into an air inlet of the axial flow fan by the air guide device, and then is discharged through an air outlet of the axial flow fan, and enters the box body through the dust collection opening.

(III) beneficial effects

The beneficial effects of the invention are as follows: according to the dust removing equipment for removing dust from air in the tunnel, the special-shaped storage brackets are additionally arranged on two sides of the bottom of the box body, each special-shaped storage bracket is provided with the first inclined part and the second inclined part, the scraper devices are arranged on the top end faces of the first inclined parts of the two special-shaped storage brackets, dust falling into the first inclined parts is scraped to the second inclined parts through the scraper devices, the included angle between the second inclined parts and the bottom wall of the box body ranges from 60 degrees to 75 degrees, so that dust on the second inclined parts can freely slide onto the dust discharging device to discharge dust, and the included angle between the second inclined parts and the bottom wall of the box body is larger than 55 degrees, so that the dust has good fluidity. That is, through the cooperation of the inclination angle of scraper means and second tilting portion for the dust deposit is not had on box both sides inclined plane, and it has solved the plane of dust removal box bottom and has had the angle between the lateral wall of dust removal box for obviously undersize, leads to equipment work after a period, and the dust piles up fast at the inclined plane of lateral wall, relies on the unable landing of dust itself to near the screw machine of ash discharge device, and then leads to the technical problem that the ash discharge effect is poor.

Drawings

FIG. 1 is a schematic diagram of a front view of a dust removal system according to the present invention;

fig. 2 is a schematic structural view of the dust removing apparatus for removing dust from air in a tunnel of fig. 1;

FIG. 3 is a schematic top view of the structure of FIG. 2 taken along the direction A-A;

FIG. 4 is a schematic view of a right-side cross-sectional structure of the dust removing apparatus of FIG. 2;

FIG. 5 is a schematic view of the structure of FIG. 4 taken along the B-B direction;

FIG. 6 is a schematic view of a portion of the first squeegee mechanism of FIG. 4;

fig. 7 is a schematic view of a portion of the second squeegee mechanism of fig. 4.

[ reference numerals description ]

10: a dust removal device; 1: a case body; 11: a dust collection port; 2: a filtering device; 3: an ash discharging device; 31: an ash discharging mechanism; 311: a speed reducer; 312: a screw machine; 313: an ash discharge port; 32 pneumatic gate valve: the method comprises the steps of carrying out a first treatment on the surface of the 33: the gate valve air inlet pipe; 34: a discharge hopper; 4: a special-shaped storage bracket; 41: a first inclined portion; 411: a landslide incline section; 412: a transitional sloping section; 42: a second inclined portion; 5: a scraper device; 51: a first squeegee mechanism; 511: a first transmission assembly; 5111: a first sprocket; 5112: a second sprocket; 5113: a first drive chain; 512: a direction adjustment structure assembly; 5121: a first direction adjusting gear; 5122: a second direction adjusting gear; 513: a second transmission assembly; 5131: a third sprocket; 5132: a fourth sprocket; 5133: a second drive chain; 5134: a mounting plate; 5135: the method comprises the steps of carrying out a first treatment on the surface of the 514: a first scraper; 52: a second squeegee mechanism; 521: a fifth sprocket; 522: a connecting plate; 523: a sixth sprocket; 524: a seventh sprocket; 525: an eighth sprocket; 526: a third drive chain; 527: a fourth drive chain; 6: a gas storage tank; 7: a pulse valve; 8: a pulse tube; 528: a second scraper; 529: the method comprises the steps of carrying out a first treatment on the surface of the 20: an axial flow fan; 30: a cable drum; 40: an air guiding device; 50: an automobile chassis assembly.

Detailed Description

The invention will be better explained by the following detailed description of the embodiments with reference to the drawings. Wherein references herein to "upper", "lower", "front", "rear", "left", "right", "inner" and "outer" are made with reference to the orientation of fig. 1. The position of the air guide 40 relative to the vehicle chassis assembly 50 in fig. 1 is defined as "up", and the air guide 40 is defined as "front" relative to the dust removing device; the position of the case body 1 where the first squeegee mechanism 51 is located in fig. 4 is defined as "left"; the direction of the side wall of the case body 1 with respect to the dust suction port 11 in fig. 4 is defined as "outside".

Referring to fig. 1-2, a dust removal system for removing dust from air in a tunnel includes a dust removal apparatus 10 for removing dust from air in a tunnel, and further includes an axial fan 20, a cable drum 30, an air guide 40, and an automobile chassis assembly 50. The vehicle chassis assembly 50 has a chassis on which the dust removing apparatus 10, the axial flow fan 20, the cable drum 30, and the air guide 40 are all disposed. The axial flow fan 20 is connected with a distribution box on the automobile chassis assembly 50 through a cable drum 30, and a dust collection opening 11 is arranged on a box body 1 of the dust collection device. The air guide device 40 is arranged at one end of the automobile chassis assembly 50, which is close to the cab, and the air guide device 40 can guide dust in a tunnel into an air inlet of the axial flow fan 20, then is discharged through an air outlet of the axial flow fan 20 and enters the box body 1 through the dust collection opening 11.

Specifically, after the tunnel blasting operation is finished, an operator is in a cab of an automobile chassis assembly 50 of the dust removing system to drive the dust removing device 10, the axial flow fan 20, the cable drum 30 and the air guide device 40 on the chassis to jointly move to a position of 50 meters on the tunnel face to stop. The on-board cable drum 30 is connected with the distribution box and then the axial flow fan 20 is started, and then dust-containing air is sent into the box body 1 of the dust removal device through the air guide device 40 and the dust collection opening 11, so that smooth flow of the dust-containing air in the dust removal and filtration system is ensured.

Wherein, a dust collecting equipment for air dust removal in tunnel, including box main part 1, filter equipment 2, ash discharge device 3, and filter equipment 2 set up in the inner chamber of box main part 1, and the dust is blocked at filter equipment 2's external surface, and the dust of separation falls into the bottom of the box main part 1 of dust collecting equipment 10 under the action of gravity. Specifically, the filter device 2 is a plurality of filter cartridges arranged at intervals. The filter cartridge microstructure is a mesh material with a diameter smaller than the dust particles. The air cleaned by the filter cartridge is discharged through the top gap directly through the dust removing apparatus 10.

Further, dust filtered by a part of the filter cartridge is still deposited on the surface of the filter cartridge after the dust removing apparatus is operated for a certain period of time, and thus, the cleaning function of the filter cartridge is used at this time. The 5 filter cartridges are taken as a blowing unit, the whole blowing action is controlled through 12 pulse valves 7 in total, and the gas in the gas storage tank 6 is orderly discharged according to a certain sequence, and the air is sequentially circulated and blown until the filter cartridges of the whole filtering device are cleaned. Next, the ash discharging command of the ash discharging device 3 is started.

Referring to fig. 4 to 5, the ash discharging device 3 includes two ash discharging mechanisms 31, and the two ash discharging mechanisms 31 are provided at the bottom of the box body 1.

Here, it is understood that each ash discharging mechanism 31 includes a speed reducer 311, a screw 312, and an ash discharging port 313. The speed reducer 311 is disposed outside the box body 1, and an output end of the speed reducer 311 is connected to one end of the screw 312, and the other end of the screw 312 extends along the length direction of the box body 1 and is rotatably mounted on one end of an inner side wall of the box body 1.

It will be appreciated herein that the direction of rotation of the two augers 312 is the same. The purpose is to better control the rotation of the screw 312 and thus facilitate the discharge of dust.

Further, the ash discharge port 313 is formed in the bottom wall of the box body 1, the screw 312 is disposed at the ash discharge port 313, and the speed reducer 311 can drive the screw 312 to rotate relative to the box body 1 so as to discharge dust. And a pneumatic gate valve 32 is arranged at the bottom of the ash discharge port 313, and the opening and closing of the ash discharge port is controlled through the pneumatic gate valve 32, specifically, the gas in the gas storage tank 6 is filled into the pneumatic gate valve 32 through a gate valve air inlet pipeline 33 to be opened. When the valve is opened, the ash discharge port 313 is opened, at this time, the two speed reducers 311 are started, and the two speed reducers 311 drive the screw 312 to rotate in the same direction at the same time. The dust at the bottom of the box body 1 is transported to the vicinity of the discharge hopper 34, and the dust is caused to fall to the ground by itself by utilizing the self gravity of the dust and the inclination of the hopper panel. After a period of operation, the dust at the bottom of the box body is removed completely. The gas in the gas storage tank 6 is filled into the pneumatic gate valve 32 again through the gate valve air inlet pipeline 33, and the valve is closed. Finally, the operation of the speed reducer 311 is stopped. I.e. the speed reducer 311 is a gear motor.

Referring to fig. 2-4, the dust collection box further comprises two special-shaped storage brackets 4 which are respectively arranged at the bottom of the box body 1 and are used for containing dust. The profile storage rack 4 includes a first inclined portion 41 and a second inclined portion 42 that are disposed up and down. The top end face of the first inclined portion 41 is provided with scraper devices 5, the scraper devices 5 are distributed along the length direction of the box body 1, and the scraper devices 5 can scrape dust on the first inclined portion 41 downwards to the second inclined portion 42. The included angle between the second inclined part 42 and the bottom wall of the box body 1 ranges from 60 degrees to 75 degrees, so that dust on the second inclined part 42 can freely slide onto the ash discharging device 3 for ash discharging.

Further, the first inclined portion 41 includes a landslide inclined section 411 and a transition inclined section 412. The top edge of the landslide inclined section 411 is fixedly connected with the inner side wall of the box body 1, the bottom edge of the landslide inclined section 411 is integrally connected with the top edge of the transition inclined section 412, and an included angle between the landslide inclined section 411 and the transition inclined section 412 is an obtuse angle. The bottom edge of the transition inclined section 412 and the top edge of the second inclined portion 42 are integrally formed, and an included angle between the transition inclined section 412 and the bottom wall of the box body 1 is smaller than 55 °.

That is, in this embodiment, the special-shaped storage rack 4 is additionally added, and the special-shaped storage rack 4 is made of steel plates, so that the special-shaped storage rack 4 has a good use effect and is not easy to deform. In addition, the special-shaped storage support 4 is arranged at the bottom of the existing box body 1, namely, the height of the original dust removing equipment is not changed, and the transformation cost is low. In order to ensure that the original height is not changed, in this embodiment, the angle between the second inclined portion 42 and the bottom wall of the housing main body 1 is in the range of 60 ° to 75 °, and preferably the angle between the second inclined portion 42 and the bottom of the housing main body 1 is in the range of 65 °, in order to ensure the fluidity of dust. Because 65 is greater than 55 contained angles, consequently, the mobility of dust is better than the dust mobility of current 30 inclined contained angles, does benefit to the dust from sliding, increases the dust mobility, can satisfy the higher or more abominable environment of construction of dust concentration. However, in order to adapt to the bottom structure of the whole box body 1, the inclination angle of the second inclined portion 42 is increased, and accordingly, it is required that the first inclined portion 41 has a relatively gentle inclined section, that is, the included angle between the transition inclined section 412 and the bottom wall of the box body 1 is smaller than 30 °, so that the plane dust mobility of the transition inclined section 412 is poor, and it is required to increase the scraper device 5 to assist the dust sliding, that is, the sliding device 5 makes a reciprocating linear motion along the width direction of the top end face of the transition inclined section 412, so that the dust can be scraped to the second smoothly slide downwards, and the dust deposited on both sides is transported to the screw 4, and the dust deposited on both sides of the box body 1 is not deposited.

Further, the included angle between the landslide slope section 411 and the transition slope section 412 is 135 degrees, and the connection part between the two sections is bent outwards. The angle between the transition inclined section 412 and the bottom wall of the case body 1 is 15 °. Here, the landslide section 411 is provided for receiving dust on both the left and right side walls of the case body 1. Simultaneously, dust is prevented from sliding from between the left side wall and the right side wall of the box body 1 to the bottom wall of the box body 1, and the dust is ensured to fall onto the special-shaped storage bracket 4. Moreover, the space arrangement in the box body 1 can be ensured, and the space can be reasonably utilized. Meanwhile, the included angle between the landslide inclined section 411 and the transition inclined section 412 is 135 degrees, and because the included angle between the transition inclined section 412 and the bottom wall of the box body 1 is 15 degrees, that is, the included angle between the landslide inclined section 411 and the left side of the bottom wall of the box body 1 is 120 degrees, that is, the included angle between the landslide inclined section 411 and the right side of the bottom of the box body 1 is 60 degrees or more than 55 degrees, good fluidity of dust can be ensured.

Further, referring to fig. 2 to 3, the squeegee assembly 5 includes a first squeegee mechanism 51 and a second squeegee mechanism 52. The plates and the blades of the second blade mechanism 52 are configured for relative or opposite movement. In order to meet the synchronism of dust scraping of the gentler transition inclined sections 412 of the profile storage brackets 4 on both sides, the dust cleaning effect is better.

Further, referring to fig. 6, the first squeegee mechanism 51 includes a first transmission assembly 511, a direction adjustment structure assembly 512, a second transmission assembly 513, and a first squeegee 514. One end of the first transmission component 511 is sleeved on the outer side wall of the screw 312, and the other end of the first transmission component 511 is connected with the second transmission component 513 through the direction adjusting structure component 512. The screw 312 rotates in a first direction to drive the first transmission assembly 511 to rotate in the first direction, and the first transmission assembly 511 drives the second transmission assembly 513 to rotate in a direction opposite to the first direction through the direction adjustment structure assembly 512. The first scraper 514 is disposed on the second transmission assembly 513, and the second transmission assembly 513 drives the first scraper 514 to slide along the opposite direction of the first direction.

Further, the first driving assembly 511 includes two first driving portions 511A and two first driven driving portions 511B respectively disposed at two ends of the transition inclined section 412 in the length direction, the first driving portions 511A and the first driven driving portions 511B each include a first sprocket 5111, a second sprocket 5112, and a first driving chain 5113 with two ends respectively engaged with the first sprocket 5111 and the second sprocket 5112, and the first sprocket 5111 is sleeved on the screw machine 312, and the second sprocket 5112 is rotatably mounted at one end of the direction adjusting structure assembly 512 through a connecting shaft. The second transmission assembly 513 includes a third sprocket 5131, a fourth sprocket 5132, and a second transmission chain 5133 with two ends engaged with the third sprocket 5131 and the fourth sprocket 5132, respectively, and the third sprocket 5131 is rotatably mounted on the other end of the direction adjustment structure assembly 512 through a connecting shaft, and a mounting plate 5134 is fixedly mounted on a transition inclined section 412, the second sprocket 5112, the third sprocket 5131, and the fourth sprocket 5132 are rotatably mounted on a side wall of the mounting plate 5134 through the connecting shaft, respectively, and the first scraper 514 is fixedly mounted on the second transmission chain 5133.

Further, the direction adjustment structure assembly 512 includes two first direction adjustment gears 5121 and second direction adjustment gears 5122 meshed with each other, which rotate relatively or in opposite directions, and the first direction adjustment gears 5121 and the second sprocket 5112 are fixedly mounted on the same connecting shaft, and the second direction adjustment gears 5122 and the third sprocket 5131 are fixedly mounted on the same connecting shaft.

Specifically, the speed reducer 311 is electrically operated to drive the screw shaft of the screw 312 to rotate, and as the first sprocket 5111 is sleeved and welded on the screw shaft, the first sprocket 5111 rotates along with the screw shaft of the screw 312, the other end of the first transmission chain 5113 is meshed with the second sprocket 5112, that is, the first sprocket 5111, the first transmission chain 5113 and the second sprocket 5112 can convert the rotation force into the transmission force of the straight line reciprocating along the width direction of the transition inclined segment 411, the transmission force is transmitted to the direction adjustment structure component 512 through the first transmission chain 5113, specifically, the direction adjustment component is two gear sets which are meshed with each other and have opposite rotation directions, the gear sets are respectively a first adjustment direction gear 5121 and a second adjustment direction gear 5122, the coaxial transmission power of the third transmission chain 526 and the fourth transmission chain 527 is changed through the two gear sets, so that the first scraping plate 514 and the second scraping plate 528 on the scraping plate mechanisms on two sides move towards the direction of the screw shaft, and the first scraping plate 514 and the second scraping plate 528 abut against the top end face 412 of the transition inclined segment 412 to realize ash scraping on the inclined surface 412.

Further, referring to fig. 3 and 7, the second squeegee mechanism 52 includes two second driving transmission portions 52A and second driven transmission portions 52B respectively provided at both ends in the length direction of the transition slope section 412. The transition bevel segment 412 is lengthwise, i.e., in the lateral direction in fig. 3. The second driving transmission part 52A and the second driven transmission part 52B each include a fifth sprocket 521 coupled with the other screw 312, and the fifth sprocket 521 has the same rotation direction as the first sprocket 5111. The other transition inclined section 412 is fixedly provided with a connecting plate 522, and the second scraping plate mechanism 52 further comprises a sixth sprocket 523 arranged at one end of the connecting plate 522, a seventh sprocket 524 coaxially arranged with the sixth sprocket 523, an eighth sprocket 525 arranged at the other end of the connecting plate 522, and a second scraping plate 528. And the fifth sprocket 521 and the sixth sprocket 523 are connected by a third transmission chain 526, the seventh sprocket 524 and the eighth sprocket 525 are connected by a fourth transmission chain 527, and the fourth transmission chain 527 is opposite to the second transmission chain 5133. The second flighting 528 is fixedly mounted to the fourth drive chain 527.

The structures of the two squeegee mechanisms may be interchanged, but may not be identical. The purpose is to ensure that the blades on the two blade mechanisms move toward or away from each other.

A dust collecting device for air dust collection in a tunnel is characterized in that a special-shaped storage bracket 4 is additionally arranged on two sides of the bottom of a box body 1, the special-shaped storage bracket 4 is provided with a first inclined part 41 and a second inclined part 42, scraper devices 5 are arranged on the top end faces of the first inclined parts 41 of the two special-shaped storage brackets 4, dust falling into the first inclined parts 41 is scraped to the second inclined parts 42 through the scraper devices 5, an included angle between the second inclined parts 42 and the bottom wall of the box body 1 ranges from 60 degrees to 75 degrees, so that dust on the second inclined parts 42 can freely slide to the middle upper part position on a dust discharging device 3 for dust discharging, and the included angle between the second inclined parts 42 and the bottom wall of the box body 1 is larger than 55 degrees, so that the dust has good fluidity. That is, the inclined angles of the scraper device 5 and the second inclined part 42 are matched, so that dust is not accumulated on inclined planes on two sides of the box body, the problem that the dust discharge effect is poor due to the fact that dust is accumulated on inclined planes on the side walls after equipment works for a period of time and cannot slide to the vicinity of a screw machine of the dust discharge device due to the fact that the dust is too small is solved.

In the description of the present invention, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; may be a communication between two elements or an interaction between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature, which may be in direct contact with the first and second features, or in indirect contact with the first and second features via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is level lower than the second feature.

In the description of the present specification, the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., refer to particular features, structures, materials, or characteristics described in connection with the embodiment or example as being included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that alterations, modifications, substitutions and variations may be made in the above embodiments by those skilled in the art within the scope of the invention.

Claims (10)

1. The dust removing equipment for removing dust from air in a tunnel comprises a box body (1), a filtering device (2) and an ash discharging device (3), and is characterized by also comprising two special-shaped storage brackets (4) which are respectively arranged at the bottom of the box body (1) and are used for containing dust;

the special-shaped storage bracket (4) comprises a first inclined part (41) and a second inclined part (42) which are arranged up and down;

the top end face of the first inclined part (41) is provided with scraper devices (5), the scraper devices (5) are distributed along the length direction of the box body (1), and the scraper devices (5) can scrape dust on the first inclined part (41) downwards to the second inclined part (42);

the included angle between the second inclined part (42) and the bottom wall of the box body (1) ranges from 60 degrees to 75 degrees, so that dust on the second inclined part (42) freely slides onto the dust discharging device (3) to be discharged.

2. The dust removal apparatus for air dust removal in a tunnel according to claim 1, wherein the first inclined portion (41) comprises a landslide inclined section (411) and a transition inclined section (412);

the top edge of the landslide inclined section (411) is fixedly connected with the inner side wall of the box body (1), the bottom edge of the landslide inclined section (411) is integrally connected with the top edge of the transition inclined section (412), and an included angle between the landslide inclined section (411) and the transition inclined section (412) is an obtuse angle;

the bottom edge of the transition inclined section (412) and the top edge of the second inclined part (42) are integrally formed, and an included angle between the transition inclined section (412) and the bottom wall of the box body (1) is smaller than 55 degrees.

3. The dust removing apparatus for air dust removal in a tunnel according to claim 2, wherein an included angle between the landslide inclined section (411) and the transition inclined section (412) is 135 °, and a junction therebetween is bent outwardly; the included angle between the transition inclined section (412) and the bottom wall of the box body (1) is 15 degrees.

4. A dust removing apparatus for air dust removal in tunnels according to claim 2, characterized in that the dust discharging device (3) comprises two dust discharging mechanisms (31); the two ash discharging mechanisms (31) are arranged at the bottom of the box body (1);

the ash discharging mechanism (31) comprises a speed reducer (311), a screw (312) and an ash discharging port (313);

the speed reducer (311) is arranged outside the box body (1), the output end of the speed reducer (311) is connected with one end of the screw machine (312), and the other end of the screw machine (312) extends along the length direction of the box body (1) and is rotatably arranged at one end of the inner side wall of the box body (1);

the ash discharge port (313) is formed in the bottom wall of the box body (1), the screw machine (312) is arranged at the ash discharge port (313), and the speed reducer (311) can drive the screw machine (312) to rotate relative to the box body (1) so as to discharge dust.

5. The dust removing apparatus for air dust removal in tunnels according to claim 4, wherein the scraper device (5) comprises a first scraper mechanism (51) and a second scraper mechanism (52);

the scrapers on the first scraper mechanism (51) and the scrapers of the second scraper mechanism (52) are configured to move relatively or reversely.

6. The dust removing apparatus for air dust removal in a tunnel according to claim 5, wherein the first scraper mechanism (51) includes a first transmission assembly (511), a direction adjustment structure assembly (512), a second transmission assembly (513), and a first scraper (514);

one end of the first transmission component (511) is sleeved on the outer side wall of the screw machine (312), and the other end of the first transmission component (511) is connected with the second transmission component (513) through the direction adjusting structure component (512);

the screw machine (312) rotates along a first direction so as to drive the first transmission assembly (511) to rotate along the first direction, and the first transmission assembly (511) drives the second transmission assembly (513) to rotate along the direction opposite to the first direction through the direction adjustment structure assembly (512);

the first scraping plate (514) is arranged on the second transmission assembly (513), and the second transmission assembly (513) drives the first scraping plate (514) to slide along the opposite direction of the first direction.

7. The dust removing apparatus for removing dust from air in a tunnel according to claim 6, wherein the first transmission assembly (511) comprises two first driving transmission parts (511A) and first driven transmission parts (511B) respectively arranged at both ends of the transition inclined section (412) in the length direction, the first driving transmission parts (511A) and the first driven transmission parts (511B) each comprise a first sprocket (5111), a second sprocket (5112) and a first transmission chain (5113) with both ends respectively engaged with the first sprocket (5111) and the second sprocket (5112), the first sprocket (5111) is sleeved on the screw machine (312), and the second sprocket (5112) is rotatably mounted at one end of the direction adjusting structural assembly (512) through a connecting shaft;

the second transmission assembly (513) comprises a third sprocket (5131) and a fourth sprocket (5132) and a second transmission chain (5133) with two ends respectively meshed with the third sprocket (5131) and the fourth sprocket (5132), the third sprocket (5131) is rotatably mounted at the other end of the direction adjustment structure assembly (512) through a connecting shaft, a mounting plate (5134) is fixedly mounted on the transition inclined section (412), the second sprocket (5112), the third sprocket (5131) and the fourth sprocket (5132) are rotatably mounted on one side wall of the mounting plate (5134) through connecting shafts respectively, and the first scraping plate (514) is fixedly mounted on the second transmission chain (5133).

8. The dust removing apparatus for removing dust from air in a tunnel according to claim 7, wherein the direction adjusting structure assembly (512) comprises two first adjusting direction gears (5121) and second adjusting direction gears (5122) which are engaged with each other and rotate relatively or reversely, the first adjusting direction gears (5121) and the second sprocket (5112) are fixedly mounted on the same connecting shaft, and the second adjusting direction gears (5122) and the third sprocket (5131) are fixedly mounted on the same connecting shaft.

9. The dust removing apparatus for air dust removing in a tunnel as set forth in claim 8, wherein the second scraper mechanism (52) includes two second driving transmission parts (52A) and second driven transmission parts (52B) respectively provided at both ends in a length direction of the transition inclined section (412), the second driving transmission parts (52A) and the second driven transmission parts (52B) each include a fifth sprocket (521) which is sleeved with another screw (312), and a rotation direction of the fifth sprocket (521) is the same as that of the first sprocket (5111);

the other transition inclined section (412) is fixedly provided with a connecting plate (522), the second scraping plate mechanism (52) further comprises a sixth chain wheel (523) arranged at one end of the connecting plate (522), a seventh chain wheel (524) coaxially arranged with the sixth chain wheel (523), an eighth chain wheel (525) arranged at the other end of the connecting plate (522) and a second scraping plate (528); the fifth chain wheel (521) is connected with the sixth chain wheel (523) through a third transmission chain (526), the seventh chain wheel (524) is connected with the eighth chain wheel (525) through a fourth transmission chain (527), and the transmission direction of the fourth transmission chain (527) is opposite to that of the second transmission chain (5133);

the second scraper (528) is fixedly mounted on the fourth transmission chain (527).

10. A dust removal system, characterized by comprising the dust removal equipment (10) for removing dust from air in a tunnel according to any one of claims 1-9, and further comprising an axial flow fan (20), a cable drum (30), an air guiding device (40) and an automobile chassis assembly (50);

the automobile chassis assembly (50) is provided with a chassis, and the dust removing equipment, the axial flow fan (20), the cable drum (30) and the air guide device (40) are all arranged on the chassis;

the axial flow fan (20) is connected with a distribution box on the automobile chassis assembly (50) through the cable drum (30), and a dust collection opening (11) is formed in the box body (1) of the dust collection device;

the air guide device (40) is arranged at one end, close to a cab, of the automobile chassis assembly (50), dust in a tunnel can be guided into an air inlet of the axial flow fan (20) by the air guide device (40), and then is discharged through an air outlet of the axial flow fan (20) and enters the box body (1) through the dust collection opening (11).