CN219764889U - Hot rolling line hurricane spiral wet dedusting device - Google Patents

Abstract

The utility model discloses a hot rolling line hurricane spiral wet dust collector, which comprises a water tank and a dust collection cylinder arranged at the top of the water tank, wherein a vertical cylinder is concentrically arranged in the dust collection cylinder, the upper end of the vertical cylinder stretches out of the dust collection cylinder and is plugged by a plugging plate, a smoke dust input pipe is arranged on the side wall of the vertical cylinder above the dust collection cylinder, a spiral water pipe with a lower port plugged is arranged on the outer wall of the vertical cylinder, a plurality of inner spray pipes are uniformly distributed on the inner side of the spiral water pipe, spray nozzles of the inner spray pipes extend into the vertical cylinder, a plurality of outer spray pipes are uniformly distributed on the outer side of the spiral water pipe, a spiral guide plate and a demister are sequentially arranged in an annular space between the vertical cylinder and the dust collection cylinder from bottom to top, an exhaust pipe is arranged on the side wall of the dust collection cylinder above the demister, and a drain pipe is arranged at the bottom of the water tank. The utility model has simple operation, good dust removal effect, no secondary pollution and obvious economic and social values.

Description

Hot rolling line hurricane spiral wet dedusting device

Technical Field

The utility model relates to the technical field of flue gas dust removal, in particular to a hot rolling line hurricane spiral wet dust removal device.

Background

When the hot rolling production line runs, a large amount of flue gas can be generated, a large amount of dust is contained in the flue gas, meanwhile, in a rolling line workshop, workers can generate a large amount of dust in the process of rolling steel, one part of dust is sourced from dust generated indoors when a rolling device in the workshop works, the other part of dust is sourced from metal scraps and dust in the rolling steel production process, and the dust enters a human body and can cause great harm to the human body. At present, a pipeline induced draft type dust removing facility is generally adopted in a steel rolling workshop to remove or reduce smoke dust in the workshop, namely a dust collecting device with local airtight exhaust is additionally arranged in the steel rolling workshop, collected dust is conveyed to dust filtering and purifying equipment to be intensively removed, and the collected dust is treated to reach the standard and then is intensively discharged, but the following problems are found in the use process: firstly, the dust removal effect is not ideal, and the dust removal requirement cannot be met; secondly, the collected dust needs to be subjected to centralized treatment, and secondary pollution is easy to generate. Therefore, the development of a hot rolling line hurricane spiral wet dust collector which is simple to operate, good in dust collection effect and free from secondary pollution is objectively required.

Disclosure of Invention

The utility model aims to provide a hot-rolled line hurricane spiral wet dust removal device which is simple to operate, good in dust removal effect and free from secondary pollution.

The utility model aims at realizing the purposes, the device comprises a water tank and a dust removing cylinder arranged at the top of the water tank, wherein a vertical cylinder is concentrically arranged in the dust removing cylinder, the upper end of the vertical cylinder stretches out of the dust removing cylinder and is plugged by a plugging plate, a smoke dust input pipe is arranged on the side wall of the vertical cylinder above the dust removing cylinder, a spiral water pipe with a lower port plugged is arranged on the outer wall of the vertical cylinder, a plurality of inner spray pipes are uniformly distributed on the inner side of the spiral water pipe, the spray nozzles of the inner spray pipes extend into the vertical cylinder, a plurality of outer spray pipes are uniformly distributed on the outer side of the spiral water pipe, a spiral guide plate and a demister are sequentially arranged in an annular space between the vertical cylinder and the dust removing cylinder from bottom to top, an exhaust pipe is arranged on the side wall of the dust removing cylinder above the demister, and a sewage drain pipe is arranged at the bottom of the water tank.

Further, the opposite side walls of the water tank are respectively tangentially provided with a water suction pipe and a water spray pipe, the water suction pipe and the water spray pipe are communicated through a water delivery pipe, and the water delivery pipe is provided with a water pump.

Further, the dust removal cylinder is located one side at the top of the water tank.

Further, a circulating pipe is arranged on the side wall of the upper part of the water tank, and the upper end of the circulating pipe is communicated with the upper port of the spiral water pipe.

Further, a filter screen is arranged at the joint of the circulating pipe and the water tank.

Further, the smoke and dust input pipe is communicated with the side wall of the vertical cylinder tangentially.

Further, a plurality of spoilers with different widths are circumferentially arranged on the inner wall of the vertical cylinder.

Further, the lower end of the vertical cylinder is provided with a necking cone.

When the utility model is operated, a certain amount of clear water is injected into the water tank, the upper end of the spiral water pipe is connected with a water source, the water is sprayed out from an inner spray pipe and an outer spray pipe on the spiral water pipe respectively, water mist is formed in the vertical barrel and the space between the vertical barrel and the dust removing barrel, dust is fed into the vertical barrel from the dust input pipe, the dust flows downwards in the vertical barrel, collides with mist sprayed out from the inner spray pipe in the flowing process, part of dust is absorbed by the water mist, then the dust is flushed to the water surface in the water tank, most of the dust is absorbed by the water surface and is immersed in the water, the rest of the dust reversely flows into an annular space between the dust removing barrel and the vertical barrel, a rotational flow is formed under the action of the spiral guide plate, on one hand, dust in the dust is separated under the centrifugal action, on the other hand, the dust contacts and collides with mist sprayed out from the outer spray pipe again, the dust is absorbed by the mist, and when the dust carrying the water mist enters the demister, the dust is trapped by the water mist with the dust, and finally the purified smoke is discharged from the exhaust pipe. In conclusion, the dust-removing device is simple in structure and operation, impurities such as dust in the dust can be thoroughly separated from the dust after being treated for many times, the dust-removing effect is good, the operation cost of the whole process is low, secondary pollution is not generated, and the dust-removing device has a good environment-friendly effect. The utility model has simple operation, good dust removal effect, no secondary pollution and obvious economic and social values.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the structure of the vertical cylinder 3 and the spoiler 18 according to the present utility model;

in the figure: the device comprises a water tank 1, a dust removing cylinder 2, a vertical cylinder 3, a smoke and dust input pipe 4, a spiral water pipe 5, an inner spray pipe 6, an outer spray pipe 7, a spiral guide plate 8, a demister 9, an exhaust pipe 10, a blow-down pipe 11, a water suction pipe 12, a spray pipe 13, a water delivery pipe 14, a water pump 15, a circulating pipe 16, a filter screen 17, a spoiler 18, a necking cone 19 and a circulating pump 20.

Detailed Description

The utility model is further described below with reference to the accompanying drawings, without limiting the utility model in any way, and any alterations or modifications based on the utility model are within the scope of the utility model.

As shown in figures 1-2, the utility model comprises a water tank 1 and a dust removing cylinder 2 arranged at the top of the water tank 1, wherein a vertical cylinder 3 is concentrically arranged in the dust removing cylinder 2, the upper end of the vertical cylinder 3 stretches out of the dust removing cylinder 2 and is plugged by a plugging plate, a smoke and dust input pipe 4 is arranged on the side wall of the vertical cylinder 3 above the dust removing cylinder 2, a spiral water pipe 5 with a lower port plugged is arranged on the outer wall of the vertical cylinder 3, a plurality of inner spray pipes 6 are uniformly distributed at the inner side of the spiral water pipe 5, a plurality of outer spray pipes 7 are uniformly distributed at the outer side of the spiral water pipe 5, a spiral guide plate 8 and a demister 9 are sequentially arranged in an annular space between the vertical cylinder 3 and the dust removing cylinder 2 from bottom to top, the demister 9 is of an existing structure and is used for separating liquid mixed in gas, an air-liquid separation effect is achieved, in the device, an exhaust pipe 10 is arranged on the side wall of the dust removing cylinder 2 above the demister 9, a bottom of the water tank 1 is provided with an 11, discharged sewage can be directly connected into a sewage drain of a factory building, no pollution is generated, and no internal circulation is generated, and no pollution is discharged. When the utility model is implemented, the dust catching cover can be arranged in a factory building, the top part between every two rolling mills is provided with the transverse dust catching cover, the upper suction type dust collection is carried out, the dust is collected intensively, the air quantity regulating valve is arranged on the dust collecting pipe so as to reasonably distribute the air quantity of each pipeline, and then the air quantity is sent into the dust input pipe 4 to enter the device.

When the utility model is operated, a certain amount of clean water is injected into the water tank 1, the upper end of the spiral water pipe 5 is connected with a water source, water is sprayed out from the inner spray pipe 6 and the outer spray pipe 7 on the spiral water pipe 5 respectively, water mist is formed in the vertical cylinder 3 and the space between the vertical cylinder 3 and the dust removing cylinder 2, dust is fed into the vertical cylinder 3 from the dust input pipe 4, the dust flows downwards in the vertical cylinder 3, part of dust is absorbed by the water mist in the flowing process, then the dust is flushed to the water surface in the water tank 1, when the utility model is implemented, the dust flow rate can reach about 20m/s, most of dust is absorbed by the water surface and sunk into the water, the rest dust reversely flows into the annular space between the dust removing cylinder 2 and the vertical cylinder 3, on one hand, the dust in the dust is separated under the centrifugal action, on the other hand, the dust is contacted and collided with the mist drops sprayed out from the outer spray pipe 7 again, the dust in the vertical cylinder 3 is absorbed again, and the dust with the water mist is trapped by the water mist, and finally the dust mist is discharged from the smoke mist 10 when the dust carrying the water mist enters the mist remover 9. In conclusion, the dust-removing device is simple in structure and operation, impurities such as dust in the dust can be thoroughly separated from the dust after being treated for many times, the dust-removing effect is good, the operation cost of the whole process is low, secondary pollution is not generated, and the dust-removing device has a good environment-friendly effect.

The opposite side walls of the water tank 1 are respectively tangentially provided with the water suction pipe 12 and the water spray pipe 13, the water suction pipe 12 and the water spray pipe 13 are communicated through the water delivery pipe 14, the water delivery pipe 14 is provided with the water pump 15, when the water tank is operated, the water pump 15 is started to pump water, water in the water tank 1 sequentially passes through the water suction pipe 12, the water delivery pipe 14 and the water spray pipe 13 and then tangentially rushes into the water tank 1, and the water in the water tank 1 is taken to form rotational flow, so that dust absorption efficiency is improved.

The dust removal section of thick bamboo 2 is located one side at water tank 1 top, and the water in the water tank 1 is in the rotation state, wholly uses water tank 1 vertical line as the central line rotation, under this kind of circumstances, for water tank 1 one side, if the dust directly dashes the middle part of surface of water, then the diffusion rate of dust in water is slower, probably can gradually deposit in water tank 1's middle part, lead to middle part dirt mud too much and influence the absorption of follow-up dust, and if dash water surface one side, because the rivers rotation linear velocity in this region is great, can be faster take away the dust that dashes into the aquatic to spread fast, make the dirt mud equipartition in water, so that follow-up dust dashes into.

The side wall of the upper part of the water tank 1 is provided with the circulating pipe 16, the upper end of the circulating pipe 16 is communicated with the upper port of the spiral water pipe 5, the circulating pipe 16 is provided with the circulating pump 20, during operation, dust and other impurities in water form dust and mud to be deposited at the bottom of the water tank 1, clear water on the upper part flows into the spiral water pipe 5 again through the circulating pipe 16 under the action of the circulating pump 20, water mist dust removal operation is continued, water is recycled in the mode, the utilization rate of water resources is improved, and the waste of the water resources is reduced.

In order to prevent dust and mud in the water tank 1 from entering the circulating pipe 16 to cause blockage of the circulating pipe 16, a filter screen 17 is arranged at the joint of the circulating pipe 16 and the water tank 1, so that the smooth flow of water in the circulating pipe 16 is ensured.

The smoke and dust input pipe 4 is tangentially communicated with the side wall of the vertical cylinder 3, and forms rotational flow after the smoke and dust enter the vertical cylinder 3, and large-particle impurities such as dust in the smoke and dust are thrown to the inner wall of the vertical cylinder 3 under the action of centrifugal force, so that the purpose of preliminary dust removal is achieved. A plurality of spoilers 18 with different widths are circumferentially arranged on the inner wall of the vertical barrel 3, the spoilers 18 are arranged on the inner wall of the vertical barrel 3, turbulent flow is generated when smoke dust in the vertical barrel 3 contacts the spoilers 18, and dust in the smoke dust is separated and falls down along the spoilers 18; secondly, after the dust in the dust is thrown out, the dust is stopped by the spoiler 18 and does not flow along with the dust, but falls down along the side wall of the spoiler 18, so that the dust removal efficiency is improved.

The lower extreme of the vertical cylinder 3 is provided with a necking cone 19, enters the necking cone 19 when smoke and dust reach the lower end of the vertical cylinder 3, and because the sectional area of the lower port of the necking cone 19 is smaller, when the smoke and dust reach the lower port of the necking cone 19, the flow speed is faster, and then the flow speed of the smoke and dust is increased, the smoke and dust can be flushed to the water surface at a faster speed, and large-particle impurities such as dust in the smoke and dust can be more thoroughly flushed into the water, and then separated from the smoke and dust, so that the dust removal efficiency of the smoke and dust is improved.

Claims (7)

1. The utility model provides a hot rolling line hurricane spiral wet dedusting device, includes water tank (1) and sets up dust removal section of thick bamboo (2) at water tank (1) top, wherein the inside of dust removal section of thick bamboo (2) is provided with riser (3) with one heart, and through the closure plate shutoff after the upper end of riser (3) stretches out dust removal section of thick bamboo (2), be provided with smoke and dust input tube (4) on the riser (3) lateral wall of dust removal section of thick bamboo (2) top, be provided with down port shutoff's spiral water pipe (5) on the outer wall of riser (3), the inboard equipartition of spiral water pipe (5) has a plurality of interior spray pipes (6), and the spout of interior spray pipe (6) stretches into the inside of riser (3), the outside equipartition of spiral water pipe (5) has a plurality of outer spray pipes (7), spiral guide plate (8) and defroster (9) have been set gradually from the bottom to the top in the annular space between riser (3) and the dust removal section of thick bamboo (2), be provided with blast pipe (10) on the side wall of riser (2) top, the bottom of water tank (1) is provided with blow off pipe (11).

2. The hot-rolled line hurricane spiral wet dust removal device of claim 1, wherein a water suction pipe (12) and a water spray pipe (13) are tangentially arranged on opposite side walls of the water tank (1), the water suction pipe (12) and the water spray pipe (13) are communicated through a water delivery pipe (14), and a water pump (15) is arranged on the water delivery pipe (14).

3. A hot rolled wire hurricane spiral wet dust removal apparatus as defined in claim 1, wherein the dust removal cylinder (2) is located at one side of the top of the water tank (1).

4. The hot-rolled line hurricane spiral wet dust removal device of claim 1, wherein a circulating pipe (16) is arranged on the side wall of the upper part of the water tank (1), the upper end of the circulating pipe (16) is communicated with the upper port of the spiral water pipe (5), and a circulating pump (20) is arranged on the circulating pipe (16).

5. A hot rolled wire hurricane spiral wet dust removal apparatus as defined in claim 1, wherein the fume input pipe (4) is in tangential communication with the sidewall of the vertical cylinder (3).

6. A hot rolled wire hurricane spiral wet dust removal apparatus as defined in claim 5, wherein a plurality of spoilers (18) of different widths are circumferentially arranged on the inner wall of the vertical cylinder (3).

7. A hot rolled wire hurricane spiral wet dust removal apparatus as claimed in claim 1, wherein the lower end of the vertical cylinder (3) is provided with a necking cone (19).