CN210206269U

CN210206269U - Dust removal system for underground construction channel

Info

Publication number: CN210206269U
Application number: CN201920755148.4U
Authority: CN
Inventors: Jun Long; 龙军
Original assignee: Police Communications Construction (group) Co Ltd
Current assignee: Police Communications Construction (group) Co Ltd
Priority date: 2019-05-23
Filing date: 2019-05-23
Publication date: 2020-03-31
Anticipated expiration: 2029-05-23

Abstract

The utility model belongs to the technical field of building construction safety, a dust pelletizing system for underground construction passageway is disclosed, its technical scheme main points are including air suction pipe way, return air pipeline, storage water tank and air pump, air suction pipe way links to each other with the storage water tank bottom, and the mouth of pipe is located below the surface of water, return air pipeline links to each other with the storage water tank top, and the mouth of pipe is located more than the surface of water, has when detaching the inside dust of passageway, collects the dust, makes the inside clean and tidy effect that keeps of passageway.

Description

Dust removal system for underground construction channel

Technical Field

The utility model relates to a technical field of construction safety, in particular to a dust pelletizing system for underground construction passageway.

Background

Underground construction represented by tunnel construction has the inherent disadvantages of less air convection and poor ventilation condition, and raised dust is dispersed in the air in the construction process, so that the damage to constructors is large. Due to the consideration of safe construction, a dust removal system is often arranged in the underground construction channel.

Chinese patent publication No. CN108722705A discloses a movable tunnel construction spray dust-settling device, which comprises movable wheels, a water injection port, a mist spray port, a dustproof and mist-melting operation box, a control button, a push handle, a push support frame and a bottom mounting frame; the dustproof atomization operating box comprises a heated pushing device, an air pressure atomization device, a protective shell, a stressed extrusion pushing device, an extrusion magnetic field sliding group, a translation pushing rotating device, a compression triggering device and a water pumping input device; the water pumping input equipment is embedded in the protective shell.

The movable tunnel construction spraying dust-settling device converts the moisture in the device into fog to be sprayed to the outside, dust in the air is adhered to fog-shaped water drops and sinks along with the water drops, and finally the dust dispersed in the air is removed. However, in the actual use process, the water sprayed into the air finally falls to the ground, and is mixed with dust to cause the inner part of the channel to be muddy, so that the construction environment is deteriorated, and the operation of constructors is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a dust pelletizing system for underground construction passageway has when detaching the inside dust of passageway, collects the dust, makes the inside clean and tidy advantage that keeps of passageway.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a dust pelletizing system for underground construction passageway, includes suction line, return air pipeline, storage water tank and air pump, suction line links to each other with the storage water tank bottom, and the mouth of pipe is located below the surface of water, return air pipeline links to each other with the storage water tank top, and the mouth of pipe is located above the surface of water.

Through adopting above-mentioned technical scheme, under the drive of air pump, the dirty air of construction passageway gets into the inside water of storage water tank by the suction line, forms the bubble, and the bubble is at the in-process of come-up, wraps up in and is held by the dust of its inside by the water adhesion gradually, breaks away from with the bubble, and in the gas of being washed up then returns the construction passageway by the return air duct, when detaching the inside dust of passageway, collect the dust, make the passageway inside keep clean and tidy.

Further, be equipped with two ponds in the storage water tank, the pond bottom has connect the mud pipe, the suction line includes trunk line, tee bend switching-over valve and two spinal branch pipelines, spinal branch pipeline one end links to each other with the pond that corresponds, and the other end passes through the tee bend switching-over valve and links to each other with the trunk line.

By adopting the technical scheme, the two water tanks, the two branch pipelines and the three-way reversing valve are arranged, so that dust can be alternately removed in the two water tanks; in the process of removing dust in one of the water tanks, the dust in the other water tank gradually settles to the bottom of the water tank, a sludge discharge pipe is opened to discharge the dust, and the water body is regenerated; and after the used water pool is saturated, controlling the three-way reversing valve to guide the dust-containing gas to the regenerated water pool for dedusting.

Furthermore, a mud settling groove is formed in the bottom of the water pool, and the mud discharging pipe is connected with the bottom end of the mud settling groove.

Through adopting above-mentioned technical scheme, set up the mud groove, make the dust that subsides in the pond bottom further concentrate, can discharge it more fully after opening the mud pipe.

Furthermore, the bottom of the pool is provided with a grid, the grid is arranged along the horizontal direction, and the grid is positioned between the pipe orifice of the branch pipeline and the water surface.

By adopting the technical scheme, the dust-containing gas passes through the grating after being discharged from the pipe orifice of the branch pipe and is cut by the grating, so that the large bubbles are dispersed into a plurality of small bubbles, and the dust in the bubbles is more fully removed.

Further, the air pump is connected to the return air pipeline.

Through adopting above-mentioned technical scheme, the air pump connects in the return air pipeline, and the gas of air pump of flowing through is the clean gas after the dust removal, can avoid the dust to block up the air pump when flowing through the air pump effectively, perhaps damages the blade of air pump.

Furthermore, a guide plate is erected at the pipe orifice of one end, back to the water storage tank, of the return air pipeline, the guide plate is conical, and the tip of the guide plate points to the pipe orifice of the return air pipeline.

Through adopting above-mentioned technical scheme, gaseous back of being discharged by the mouth of pipe of return air pipeline, if direct impact on the inner wall of construction passageway, lead to more dusts to be washed down by the air current easily, set up the appearance that the guide plate can effectively avoid this condition.

Furthermore, a partition board is arranged in the water storage tank, the partition board is arranged in the horizontal direction and located between the return air pipeline and the water surface, and a plurality of baffle plates are arranged above the partition board.

Through adopting above-mentioned technical scheme, set up the baffle, cut off the mouth of pipe of surface of water and return air pipeline, the clean gas that removes the dust need bypass the baffle just can get into the return air pipeline to the in-process once more passes a plurality of baffling boards, and moisture in the gas condenses on the baffling board gradually, thereby can reduce the moisture loss in the storage water tank.

Furthermore, the water storage tank is connected with a fresh air pipeline, an opening and closing valve is arranged on the fresh air pipeline, and one end, back to the water storage tank, of the fresh air pipeline is communicated with the ground surface.

Through adopting above-mentioned technical scheme, regularly open the on-off valve, the air pump can adjust the oxygen content in the construction passageway in can carrying the earth's surface air to the construction passageway via the fresh air pipeline, plays the effect of ventilation.

To sum up, the utility model discloses following beneficial effect has:

1. dust in the channel is removed, and meanwhile, the dust is collected, so that the interior of the channel is kept clean;

2. when one of the water tanks is used for dust removal, dust in the other water tank naturally settles and is discharged by a mud pipe, so that the regeneration of a water body is realized, and the continuous working time of the dust removal system can be greatly prolonged by the alternation of the two water tanks;

3. the fresh air pipeline is arranged, so that fresh air on the earth surface can be introduced periodically, and the oxygen content in the construction channel is adjusted.

Drawings

FIG. 1 is a schematic view of the overall structure of the embodiment;

fig. 2 is a schematic view of the internal structure of the water storage tank in the embodiment.

In the figure, 1, an air draft pipeline; 2. a return air duct; 3. a water storage tank; 4. an air pump; 5. a fresh air duct; 6. constructing a channel; 11. a main pipeline; 12. a three-way reversing valve; 13. branch pipelines; 21. a baffle; 31. a pool; 32. a sludge discharge pipe; 33. a sludge settling tank; 34. a grid; 35. a partition plate; 36. a baffle plate; 51. and opening and closing the valve.

Detailed Description

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

Example (b):

a dust removal system for an underground construction channel is shown in figures 1 and 2 and comprises an air suction pipeline 1, a water storage tank 3 and an air return pipeline 2 which are sequentially arranged in a construction channel 6. Wherein, the air draft pipeline 1 is connected with the bottom end of the water storage tank 3, the pipe orifice thereof is positioned below the water surface, the air draft pipeline 1 is connected with the top end of the water storage tank 3, and the pipe orifice thereof is positioned above the water surface. In addition, the air pump 4 is connected to the air pumping pipeline 1, and the fresh air pipeline 5 is connected to the water storage tank 3.

The air pump 4 discharges the air in the air pumping pipeline 1 and the water storage tank 3 to form negative pressure, so that the dust-containing gas in the construction channel 6 enters the air pumping pipeline 1 and then enters the water body in the water storage tank 3. In the process that the dust-containing gas passes through the water body, dust mixed in the gas is adsorbed by the water body and separated from the gas, and finally only clean gas returns to the construction channel 6 through the return air pipeline 2 to form circulation.

As shown in fig. 1 and fig. 2, a flow guide plate 21 is erected at a pipe orifice of one end of the draft duct 1, which is back to the water storage tank 3, the flow guide plate 21 is conical and coaxial with the pipe orifice of the draft duct 1, and the tip of the flow guide plate points to the pipe orifice of the draft duct 1. Clean gas strikes on guide plate 21 after entering construction passageway 6 by suction line 1, then along guide plate 21 to diffusing all around, can not directly strike at construction passageway 6 inner wall, leads to more dust to raise.

As shown in fig. 1 and 2, the fresh air duct 5 is disposed along a vertical direction, and a bottom end thereof is communicated with an upper surface of the water storage tank 3 through an opening and closing valve 51, and a top end thereof penetrates upward through the ground surface. After the open-close valve 51 is opened, the air pump 4 can convey the fresh air on the ground into the construction channel 6, and the oxygen content in the construction channel 6 is adjusted.

As shown in fig. 1 and 2, the suction line 1 is composed of a main line 11, a three-way directional valve 12, and two branch lines 13. The main pipeline 11 is T-shaped, two ends of the main pipeline extend to two ends of the construction channel 6 respectively, and the middle part of the main pipeline is connected with two branch pipelines 13 respectively through a three-way reversing valve 12.

As shown in fig. 2, two water pools 31 are arranged in the water storage tank 3, and correspond to the two branch pipelines 13 one by one, and one end of each branch pipeline 13, which is back to the three-way reversing valve 12, is connected to the bottom end of each water pool 31.

As shown in fig. 2, a mud discharging pipe 32 is connected to the bottom end of the side wall of the water tank 31, the bottom of the water tank 31 is concave and inclined towards the pipe orifice of the mud discharging pipe 32 to form a mud settling tank 33, and the pipe orifice of the mud discharging pipe 32 is located at the bottom end of the mud settling tank 33. When the branch pipe 13 is disconnected from the main pipe 11 and the dust-containing gas cannot be supplied into the water tank 31, the water body in the water tank 31 is gradually calmed, and the dust mixed in the water body naturally settles into the sludge settling tank 33. At this time, the sludge discharge pipe 32 is opened, and most of the dust can be discharged.

As shown in FIG. 2, a grille 34 is erected on the bottom of the pool 31, the grille 34 is horizontal, and the edge of the grille 34 is fixedly connected with the inner wall of the pool 31. The grill 34 is positioned over the orifice of the branch duct 13 and is positioned proximate to the orifice of the branch duct 13. After the dust-containing gas enters the water tank 31 from the branch pipe 13, the formed large bubbles are divided into a plurality of small bubbles by the grating 34, so that the dust in the gas can be more fully adsorbed by the water body.

As shown in fig. 2, a partition plate 35 is erected on the top of the inner wall of the water storage tank 3, the partition plate 35 is located above the water surface, below the pipe orifice of the return air duct 2, and one side of the return air duct 2 facing the return air duct is fixedly connected with the inner wall of the water storage tank 3. The clean gas after being washed by the water body can enter the return air pipeline 2 only by bypassing the partition plate 35.

As shown in fig. 2, a plurality of baffle plates 36 are arranged above the partition plate 35, the clean gas continuously impacts on the baffle plates 36 in the process of flowing above the partition plate 35, and the water mixed in the gas is accumulated on the baffle plates 36 to form drops, so that the water loss in the water storage tank 3 can be effectively reduced.

As shown in FIG. 2, one end of the baffle plate 36 is fixedly connected with the inner wall of the water storage tank 3, the other end of the baffle plate is inclined away from the return air pipeline 2, and water can flow back to the water tank 31 after being converged on the baffle plate 36.

The specific implementation process comprises the following steps:

under the drive of the air pump 4, the dust-containing air in the construction channel 6 enters the water body in the water storage tank 3 from the air pumping pipeline 1 to form bubbles. In the floating process of the bubbles, the dust wrapped inside the bubbles is gradually adhered by water and separated from the bubbles, and the gas cleaned by the water returns to the construction channel 6 through the air return pipeline 2. The dust in the channel is removed and collected at the same time, so that the interior of the channel is kept clean.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a dust pelletizing system for underground construction passageway which characterized in that: including suction line (1), return air pipeline (2), storage water tank (3) and air pump (4), suction line (1) links to each other with storage water tank (3) bottom, and the mouth of pipe is located below the surface of water, return air pipeline (2) link to each other with storage water tank (3) top, and the mouth of pipe is located above the surface of water.

2. The dust removing system for the underground construction passageway according to claim 1, wherein: be equipped with two ponds (31) in storage water tank (3), pond (31) bottom has connect sludge discharge pipe (32), suction line (1) includes trunk line (11), tee bend switching-over valve (12) and two small transfer lines (13), small transfer line (13) one end links to each other with pond (31) that correspond, and the other end passes through tee bend switching-over valve (12) and links to each other with trunk line (11).

3. The dust removing system for the underground construction passageway according to claim 2, wherein: the bottom of the water pool (31) is provided with a sludge settling groove (33), and the sludge discharge pipe (32) is connected with the bottom end of the sludge settling groove (33).

4. The dust removing system for the underground construction passageway according to claim 2, wherein: the bottom of the pool (31) is provided with a grating (34), the grating (34) is arranged along the horizontal direction, and the grating (34) is positioned between the pipe orifice of the branch pipeline (13) and the water surface.

5. The dust removing system for the underground construction passageway according to claim 1, wherein: the air pump (4) is connected to the return air pipeline (2).

6. The dust removing system for the underground construction passageway according to claim 1, wherein: the air return pipeline (2) is back to the pipe orifice of one end of the water storage tank (3), a guide plate (21) is erected at the pipe orifice, the guide plate (21) is conical, and the tip of the guide plate (21) points to the pipe orifice of the air return pipeline (2).

7. The dust removing system for the underground construction passageway according to claim 1, wherein: the water storage tank is characterized in that a partition plate (35) is arranged in the water storage tank (3), the partition plate (35) is arranged in the horizontal direction, the partition plate (35) is located between the return air pipeline (2) and the water surface, and a plurality of baffle plates (36) are arranged above the partition plate (35).

8. The dust removing system for the underground construction passageway according to claim 1, wherein: the fresh air pipeline (5) is connected to the water storage tank (3), the opening and closing valve (51) is arranged on the fresh air pipeline (5), and one end, back to the water storage tank (3), of the fresh air pipeline (5) is communicated with the ground surface.