CN111804103A - A road construction dust suppression device - Google Patents

Abstract

The invention relates to a road construction dust suppression device, which can effectively solve the problems of high power consumption, small suction volume and easy internal blockage of the dust suppression device; A rotatable filter element is placed inside; the left end of the channel has a bell mouth, and an exhaust fan for blowing air into the box is installed in the bell mouth; a water inlet pipe is installed in the channel, and there is a nozzle on the water inlet pipe; The water tank and the drain located directly below the filter element; the filter element includes two front and rear side plates, and a plurality of filter plates inclined toward the axis of the support shaft are installed between the front and rear side plates; installed between the front and rear side plates There is a rotating shaft in the front-rear direction, and the rotating shaft can rotate; the outside of the rotating shaft is wrapped with a sponge layer, the sponge layer is facing the right end of the fan-shaped filter body, and a pressing roller for squeezing the sponge layer is installed below the rotating shaft, and the pressing roller can rotate passively; the present invention does not need a filter. Net, good ventilation and large suction capacity.

Description

A road construction dust suppression device

technical field

The invention relates to the technical field of construction, in particular to a road construction dust suppression device.

Background technique

At present, road construction involves a variety of dust control schemes, mainly using partition walls to spray water or spray trucks to reduce dust. This method is generally suitable for large-scale dust reduction, mainly dealing with the dust control of the entire construction site. At present, there are no good dust reduction measures for dust reduction in some local operation areas; for example, cutting and grinding of materials such as plates and stones; or loading and unloading operations in stacking areas such as stone, cement, lime, etc. In many places, it is not suitable to directly use water mist for dust reduction. Therefore, a small suction type dust reduction device is required to carry out local rapid dust reduction, thereby reducing the dust content and benefiting the health of workers.

At present, most of the suction-type dust suppression devices on the market use filter screens for filtration. Due to the dense texture of the filter screens, the ventilation performance will be affected and the dust filtering effect will be reduced when the air is drawn. It is easy to be blocked; if this type of equipment needs to increase the exhaust air volume, it needs to use a fan with strong performance. This type of fan is expensive, has high power consumption, and is noisy, which will increase additional expenses such as electricity bills; it cannot achieve low power consumption and efficient exhaust air. Dust fall.

Therefore, there is currently a need for a dust suppression device with strong suction capability, which can avoid clogging and self-clean in time to solve the above problems.

SUMMARY OF THE INVENTION

In view of the above situation, in order to solve the problems existing in the prior art, the purpose of the present invention is to provide a road construction dust suppression device, which can effectively solve the problems of high power consumption, small suction volume and easy internal blockage of the current dust suppression device.

The technical solution of the solution is to include a box body, and the box body is provided with a left and right channel; a rotatable filter element is placed in the channel; A plurality of water inlet pipes are installed in the channel between the exhaust fan and the filter element, and each water inlet pipe is installed with a plurality of atomizing nozzles; in the box, a water tank is installed directly above the filter element, and a water tank is installed directly under the filter element. After the filter element is rotated clockwise from the horizontal state, it will trigger the water in the water tank to flow down to flush the filter element;

The filter element includes two front and rear side plates, and a support shaft placed in the front direction and passing through the box body is installed on the outer sides of the front and rear side plates; a plurality of inclined support shafts are installed between the front and rear side plates. The filter plate of the shaft axis; a plurality of filter plates form a fan-shaped filter body with a large left and a small right; a rotating shaft in the front and rear directions is installed between the front and rear side plates, and the rotating shaft can rotate; the rotating shaft is wrapped with a sponge layer, and the sponge layer is facing On the right end of the fan-shaped filter body, a pressing roller for squeezing the sponge layer is installed below the rotating shaft, and the pressing roller can rotate passively.

The invention does not need a filter screen, has good ventilation, and has a large suction capacity; at the same time, the dust can be combined with the water mist, adhere to the filter plate, and then be adsorbed to avoid escaping; the internal filter element is easy to clean and not easy to block.

Description of drawings

FIG. 1 is a front view of the present invention.

FIG. 2 is a front sectional view (dust filtering state) of the present invention.

3 is a front sectional view (cleaning state) of the present invention.

FIG. 4 is a schematic perspective view of a filter element.

FIG. 5 is a schematic cross-sectional perspective view of FIG. 4 .

Detailed ways

The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

1 to 5, the present invention includes a box body 1, and the box body 1 is provided with a channel 2 in the left and right directions; a rotatable filter element 3 is placed in the channel 2; the left end of the channel 2 is installed with a bell mouth 4, Inside the bell mouth 4 is installed an exhaust fan 5 that blows air into the box body 1; a plurality of water inlet pipes 6 between the exhaust fan 5 and the filter element 3 are installed in the channel 2, and each water inlet pipe 6 is installed with a plurality of water inlet pipes 6. Atomizing nozzle; the box body 1 is equipped with a water tank 7 located directly above the filter element 3, and a water outlet 8 located directly below the filter element 3; after the filter element 3 is rotated 90 degrees clockwise from a horizontal state, it will trigger the inside of the water tank 7 The water flows down to flush the filter element 3;

The filter element 3 includes two front and rear side plates 301, and a support shaft 302 placed in the front direction and passing through the box 1 is installed on the outer sides of the front and rear side plates 301; There are a plurality of filter plates 303 inclined towards the axis of the support shaft 302; the plurality of filter plates 303 form a fan-shaped filter body with a large left and a right small; a rotating shaft 304 in the front and rear directions is installed between the front and rear side plates 301, and the rotating shaft 304 can rotate ; The rotating shaft 304 is wrapped with a sponge layer 305, the sponge layer 305 is facing the right end of the fan-shaped filter body, and a pressing roller 306 that squeezes the sponge layer 305 is installed below the rotating shaft 304, and the pressing roller 306 can rotate passively.

In order to drain the water of the sponge layer 305 from the drain port 8 , the front and rear side plates 301 are connected with an inclined plate 307 at the lower right of the sponge layer 305 ; the lower end of the inclined plate 307 corresponds to the drain port 8 .

In order to facilitate the control of the water inlet and outlet of the water tank 7, the water inlet of the water tank 7 is equipped with a float valve 9; the bottom of the water tank 7 is provided with an opening 10, and the opening 10 is provided with a plurality of vertical guide rods 11. The guide rods 11 A baffle 12 that can move up and down is installed on it, and the guide rod 11 is sleeved with a compression spring 13 that makes the baffle 12 reset downward; a vertical rod 14 is fixed on the lower end surface of the baffle 12, and a front and rear direction of the extrusion rod 15.

In order to make the filter element 3 rotate 90 degrees clockwise from the horizontal state, the water in the water tank 7 will be triggered to flow down to flush the filter element 3. The left ends of the front and rear side plates 301 of the filter element 3 are arc surfaces. An upper cover plate 308 is installed on the upper end surfaces of the front and rear side plates 301 , and a wedge-shaped block 309 connected to the arc surface is installed at the left end of the upper cover plate 308 . After the filter element 3 is rotated, it will pass through the wedge-shaped block 309 and make the arc surface squeeze the extrusion rod 15 to move upward, so that the baffle 12 also moves upward, and the opening 10 of the water tank 7 is opened.

In order to allow the filtered gas to escape through the right end of the channel 2, a plurality of support rods 16 are installed side by side in the left and right directions in the drainage port 8. The support rods 16 can be rotated, and each support rod 16 is installed on each support rod 16. There are baffles 17 , and the plurality of support rods 16 are rotated 90 degrees at the same time, which can block or open the water outlet 8 .

In order to facilitate the rotation of the filter element 3 and the support rod 16, a frame 18 that can move up and down is installed on the front side of the box body 1. The frame 18 is moved up and down through the electric telescopic rod 19, and the filter element 3 is located on the support shaft on the front side. Gears are sleeved on 302 , and gears are mounted on the front end of each support rod 16 ; the frame 18 is provided with a plurality of racks that mesh with the gears on the support shaft 302 and the gears on the support rod 16 at the same time.

In order to realize the rotation of the rotating shaft 304, a motor 310 is installed on the side plate 301, and the motor 310 drives the rotating shaft 304 to rotate.

In order to allow the filter element 3 to be sufficiently flushed by the water in the water tank 7 , a plurality of guide plates 20 facing both sides are installed on the opening 10 at the bottom of the water tank 7 .

In order to facilitate movement, a universal wheel 21 is installed at the bottom of the box body 1 .

When the present invention is used, first move the device to the construction area, and at the same time align the bell mouth 4 of the device to the place where the dust is generated, then the water inlet pipe 6 of the device can be connected to the water source; at this time, under the action of water pressure The atomizing nozzle installed on the lower water inlet pipe 6 will atomize the water; at the same time, since the water inlet pipe 6 is connected to the water inlet of the water tank 7 through the tee, the water tank 7 will also be filled with water, and the water tank will be filled with water under the action of the float valve 9 7 It will stop automatically when full of water.

Then start the exhaust fan 5, and the exhaust fan 5 will absorb dust from the bell mouth 4 at this time; in the initial state, the filter element 3 is in the state shown in Figure 2, that is, the partition in the filter element 3 is facing the bell mouth at this time. 4; At this time, the dust-containing gas sucked by the exhaust fan 5 will first fully contact the atomized water droplets after atomization; so that the dust and water droplets are fused together, and the volume and weight of the fused dust increases. Afterwards, since the multiple partitions are evenly distributed around the axis of the support shaft 302; at the same time, the shape of the multiple partitions is similar to a fan, and the large end of the fan is toward the left and the small end is super right; therefore, the space between the adjacent two partitions is The gap gradually decreases from left to right.

When the gas fused with the water mist is blown to the partition from left to right, the gap between the two adjacent partitions becomes smaller and the partition has a certain inclination angle; therefore, after fusion with the water mist The dust-laden gas will adhere to the surface of the separator; and under the action of the wind, it will change from small droplets to large droplets along the surface of the separator.

When the volume of the droplet becomes larger, it will gradually slide along the partition from left to right until it is completely separated from the right side of the partition; The surface is wrapped with a sponge layer 305; therefore, the droplets blown out from the right side of the partition will be adsorbed by the sponge layer 305; when most of the droplets in the gas are adsorbed, clean air will flow from both sides of the sponge layer 305, Blow out like the right side of channel 2. Thereby, the filtration of the gas is realized.

Because the sponge layer 305 is in a state of continuous rotation under the action of the motor 310, when the sponge layer 305 rotates, the pressure roller 306 and the sponge layer 305 are in a squeezing state; therefore, the rotation of the sponge layer 305 will drive the pressure roller 306 to rotate together; The pressing roller 306 squeezes the dust-containing droplets on the sponge layer 305 to slide down, and fall into the water outlet 8 along the inclined plate 307 , and then the dust-containing droplets will flow out of the box 1 from the gap of the water outlet 8 . In this way, on the one hand, the discharge of droplets on the sponge layer 305 is realized; on the other hand, when the dried sponge layer 305 continues to rotate to correspond to the right side of the separator, the droplets can be reabsorbed, which enhances the circulation of the sponge layer 305. Adsorption capacity.

In the above process, the baffles 17 on the plurality of support rods 16 are in a horizontal state, so the water outlet 8 is in a closed state, and after the gas blown to the sponge layer 305 escapes, most of them will not be discharged from the water outlet 8; Only the droplets of Hancheng can flow downward from the gap between the baffles 17 and the baffles 17 .

After filtering for a period of time, the dust content on the separator increases, and the sponge layer 305 is gradually contaminated; at this time, the separator and the sponge layer 305 need to be cleaned at the same time. When cleaning, it is only necessary to start the electric telescopic rod 19, at this time, the electric telescopic rod 19 will drive the frame 18 to move upward; when the frame 18 moves upward, it passes through the rack on the frame 18, as well as the support shaft 302 and the gear at the end of the support rod 16 Function; the entire filter element 3 will rotate 90 degrees clockwise; the filter element 3 is in the state shown in FIG. 3 , and the baffles 17 of the plurality of support rods 16 are also in a vertical state, that is, the drain port 8 is Open.

When the filter element 3 is rotated from the horizontal position to the vertical position, the wedge-shaped block 309 on the upper cover plate 308 of the filter element 3 will squeeze the extrusion rod 15, and then the arc surface of the left end of the filter element 3 will be squeezed. rod 15 , so that the extrusion rod 15 drives the baffle plate to move upward through the vertical rod 14 . When the baffle 12 moves upward, the opening 10 at the bottom of the water tank 7 will be opened, and the water in the water tank 7 will pour down; under the impact of the water, the water will flow down along the partition; 305 to flush. The washed dirty water is discharged from the drain port 8, and a waste water bucket can be placed under the drain port 8 to collect water.

During the cleaning process, the atomized dust-containing gas will enter the interior of the filter element 3, but since the upper cover plate 308 of the filter element 3 rotates to the right side, the dust-containing gas will not directly flow out of the channel 2. The right side is discharged; instead, it is discharged from the drain port 8, and at the same time, it is washed under the action of the water flow to prevent the dust from escaping.

After the cleaning is completed, the entire frame 18 is moved downward by activating the electric telescopic rod 19 again; at this time, the filter will rotate 90 degrees counterclockwise to return to the initial state; at the same time, the plurality of baffles 17 will also rotate to the horizontal state The water outlet 8 is closed; the baffle 12 is also reset downward under the action of the compression spring 13 and the opening 10 of the water tank 7 is closed; the whole device can be quickly filtered again.

The device is provided with inclined partitions arranged in a fan shape; the atomized gas can flow along the partitions, so that the dust adheres to the partitions; and because the space formed by the partitions is large on the left and small on the right, it will The suctioned gas is collected and discharged from the right end of the partition; the gas can be completely blown on the sponge layer 305, and the dust-containing droplets can be fully absorbed by the impact of high-speed airflow and the drying of the sponge layer 305.

By setting the filter element 3 into a rotatable structure, the device filters the filter element 3 in a horizontal position and cleans the filter element 3 in a vertical position; the cleaning speed of this device is fast, and the cleaning is convenient and does not require disassembly.

By setting the partition plate and the cooperation of the sponge layer 305, the device changes the traditional filter type filtering, or other filtering methods similar to the filter screen; thus, the flow rate can be effectively increased, and the amount of air suctioned per unit time can be increased. , so that the exhaust fan 5 with lower power can realize larger purification capacity.

Claims (9)

1. A road construction dust fall device comprises a box body (1), and is characterized in that a channel (2) in the left and right direction is arranged in the box body (1); a rotatable filter element (3) is arranged in the channel (2); a bell mouth (4) is arranged at the left end of the channel (2), and an exhaust fan (5) for blowing air into the box body (1) is arranged in the bell mouth (4); a plurality of water inlet pipes (6) positioned between the exhaust fan (5) and the filtering piece (3) are arranged in the channel (2), and a plurality of atomizing nozzles are arranged on each water inlet pipe (6); a water tank (7) positioned right above the filtering piece (3) and a water outlet (8) positioned right below the filtering piece (3) are arranged in the box body (1); after the filtering piece (3) rotates clockwise by 90 degrees from the horizontal state, water in the water tank (7) is triggered to flow downwards to flush the filtering piece (3);

the filter element (3) comprises a front side plate and a rear side plate (301), and a support shaft (302) which is arranged in the front direction and penetrates through the box body (1) is arranged on the outer side surfaces of the front side plate and the rear side plate (301); a plurality of filter plates (303) which incline towards the axis of the supporting shaft (302) are arranged between the front side plate and the rear side plate (301); a plurality of filter plates (303) form a sector filter body with a large left and a small right; a rotating shaft (304) in the front-back direction is arranged between the front side plate (301) and the rear side plate (301), and the rotating shaft (304) can rotate; the outer parcel of pivot (304) has sponge layer (305), and sponge layer (305) just is to the right-hand member of fan-shaped filter body, and the compression roller (306) of extrusion sponge layer (305) are installed to the below of pivot (304), and compression roller (306) can rotate passively.

2. The road construction dust fall device according to claim 1, characterized in that a sloping plate (307) is connected between the front and rear side plates (301) and is positioned at the right lower part of the sponge layer (305); the lower end of the sloping plate (307) corresponds to the water outlet (8).

3. The road construction dust fall device according to claim 1, characterized in that a float valve (9) is installed at the water inlet of the water tank (7); an opening (10) is formed in the bottom of the water tank (7), a plurality of vertical guide rods (11) are arranged at the position of the opening (10), a baffle (12) capable of moving up and down is installed on each guide rod (11), and a pressure spring (13) enabling the baffle (12) to reset downwards is sleeved on each guide rod (11); a vertical rod (14) is fixed on the lower end surface of the baffle (12), and a squeezing rod (15) in the front-back direction is fixed on the lower end of the vertical rod (14).

4. The road construction dust fall device according to claim 1, characterized in that the left ends of the front and rear side plates (301) of the filter element (3) are arc surfaces, the upper end surfaces of the front and rear side plates (301) are provided with upper cover plates (308), and the left ends of the upper cover plates (308) are provided with wedge blocks (309) connected with the arc surfaces; after the filter member (3) rotates, the filter member passes through the wedge block (309) excessively, and the circular arc surface presses the pressing rod (15) to move upwards, so that the baffle plate (12) also moves upwards, and the opening (10) of the water tank (7) is opened.

5. The road construction dust fall device according to claim 1, characterized in that a plurality of support rods (16) arranged in the front-back direction are arranged side by side in the water outlet (8), the support rods (16) can rotate, each support rod (16) is provided with a baffle (17), and the plurality of support rods (16) rotate 90 degrees at the same time to block or open the water outlet (8).

6. The road construction dust fall device according to claim 1, characterized in that a frame (18) capable of moving up and down is installed on the front side of the box body (1), the frame (18) can move up and down through an electric telescopic rod (19), a support shaft (302) of the filter element (3) on the front side is sleeved with a gear, and the front end of each support rod (16) is provided with a gear; the frame (18) is provided with a plurality of racks which are simultaneously meshed with the gear on the supporting shaft (302) and the gear on the supporting rod (16).

7. The road construction dust falling device according to claim 1, characterized in that a motor (310) is mounted on the side plate (301), and the motor (311) drives a rotating shaft (304) to rotate.

8. A road construction dust-settling device according to claim 1, characterized in that a plurality of guide plates (20) facing to both sides are installed on the opening (10) of the bottom of the water tank (7).

9. The road construction dust fall device according to claim 1, characterized in that universal wheels (21) are installed at the bottom of the box body (1).

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