KR100348453B1 - Dust collecting apparatus using water - Google Patents

Abstract

The present invention relates to a cyclone dust collector of a water treatment method for collecting the dust of exhaust gas discharged from an industrial boiler, dust generated in a construction site, etc., the lower portion is formed with an outlet for discharging sediment, A settling tank in which settling water is stored up to a height close to a support formed on the periphery; A cyclone dust collecting unit fixedly installed on the top of the settling tank while the open lower part is supported by the supporting part in a state of being submerged in the settling water through the base of the settling tank; An airflow inlet chamber formed in a sealed state on an upper end of the cyclone dust collecting unit and having an inlet connected to a transport pipe of an airflow to be processed; A plurality of first cyclone dust collecting tubes attached to a bottom thereof so as to communicate with the air flow inlet chamber and extending vertically long toward the water surface of the sedimentation water stored in the sedimentation tank; An airflow discharge chamber installed at a lower side opposite to the airflow inlet chamber and having only a lower portion opened by an upper plate and a side blocking plate; An airflow passage formed between the airflow inlet chamber and the airflow discharge chamber, the airflow passage being formed by a side blocking plate having a lower end deeply settled into the water of the settling water; It is installed to communicate with the air flow passage in a state attached to the upper plate of the air discharge chamber, and penetrates through a plurality of second cyclone dust collecting tube and the upper portion of the cyclone dust collecting unit extending vertically long toward the surface of the settling tank Water above the first cyclone dust collecting tube of the airflow inlet chamber and the second cyclone dust collecting tube of the airflow discharge chamber, and having a spray nozzle for spraying water toward the first and second dust collecting tubes. The invention is characterized by the formation of an officer.

Description

Cyclone dust collector of water treatment method {Dust collecting apparatus using water}

The present invention relates to a cyclone dust collector of a water treatment method for collecting the dust of exhaust gas discharged from an industrial boiler, dust generated at a construction site, and the like.

Exhaust gases such as industrial boilers contain soot mixed with fine materials, and dusts such as soil dust and stone are generated at construction sites such as civil engineering and building construction. If released, it causes pollution to the environment.

In the prior art, there is a wet dust collector shown in FIG. 8 as an example of a dust collector for removing dust generated from an industrial boiler or dust generated at a construction site.

The above-mentioned wet dust collector of the prior art has a dust collecting tank 100 to alternately stack a plurality of layers of mats 300 with gravel or plastic ball layers 200 and voids largely formed therein, of the dust collecting tank 100. The upper and lower inlet 101 is formed with an inlet 101 through which air flow such as exhaust gas flows, and an exhaust port 102 through which the air flow passing through the gravel or plastic ball layer 200 and the mat layer 300 is discharged. The upper part of the tank 100 is formed with a water injection pipe 400 for injecting water to the air flow flowing in from the inlet 101, the lower portion is formed with an outlet 103 for discharging the collected sediment sludge.

However, the dust collector of the prior art as described above is a part of the smoke attached to the gravel or plastic ball layer 200 and the mat layer 300 is filled in the state alternately stacked in the dust collecting tank 100 in the water injection port (300) It is attached to the gravel or plastic ball layer 200 and the mat layer 300 without being washed off by the sprayed water, and thus a part of the soot is attached to the gravel or plastic ball layer 200 and the mat layer 300. If the phenomenon continues to appear, there is a problem that the gravel or plastic ball layer 200 and the mat layer 300 loses the function of collecting the soot, and also attached to the gravel or plastic ball layer 200 and the mat layer 300 The problem that the soot is discharged through the outlet 102 may also occur.

And when the soot is attached to the gravel or plastic ball layer 200 and the mat layer 300 as above the reference value, the gravel or plastic ball layer 200 and the mat layer 300 should be washed clean, the washing operation This is very cumbersome and requires a lot of time and manpower, the wet dust collector of the prior art has been pointed out as a problem that the maintenance costs are high.

The present invention has been created to solve the problems of the prior art as described above, such as soot or soot contained in the exhaust gas discharged from the exhaust gas discharged from industrial boilers, such as dust dust, stone powder, etc. In the dust collection process, the dust collected in the cyclone dust collecting unit is invented for the purpose of providing a cyclone dust collector which allows the sediment stored in the sedimentation tank to be precipitated and discharges only the air stream from which dust is removed.

The present invention as a means for achieving the above object,

A sedimentation tank having a discharge port for discharging sediments at a lower portion thereof, the sedimentation tank storing sedimented water to a height close to a supporting portion formed at a periphery of the inner upper portion;

A cyclone dust collecting unit fixedly installed on an upper end of the sedimentation tank while the open lower portion is supported by the support portion while the water is submerged in the surface of the sedimentation water through the base of the sedimentation tank;

An airflow inlet chamber formed in a sealed state on an upper end of the cyclone dust collecting unit and having an inlet connected to a transport pipe of an airflow to be processed;

A plurality of first cyclone dust collecting tubes attached to a bottom thereof so as to communicate with the air flow inlet chamber and extending vertically long toward the water surface of the sedimentation water stored in the sedimentation tank;

An airflow discharge chamber installed at a lower side opposite to the airflow inlet chamber and having only a lower portion opened by an upper plate and a side blocking plate;

An airflow passage formed between the airflow inlet chamber and the airflow discharge chamber, the airflow passage being formed by a side blocking plate having a lower end deeply settled into the water of the settling water;

A plurality of second cyclone dust collecting tubes installed to communicate with the air flow passage in a state of being attached to the upper plate of the air discharge chamber, and extending vertically long toward the surface of the settling tank; And

It is installed above the first cyclone dust collecting tube of the airflow inlet chamber and the second cyclone dust collecting tube of the airflow discharge chamber through the upper portion of the cyclone dust collecting unit, and is directed toward the first and second cyclone dust collecting tubes. A water spray pipe having a spray nozzle for spraying water;

It is characterized by consisting of

In addition, the upper and lower fixed fans are respectively mounted on the upper and lower portions of the first and second cyclone dust collecting tubes so as to disperse the water sprayed from the air stream and the water spraying tube to be swirled toward the inner circumferential surface of each cyclone dust collecting tube. In the middle of the upper and lower fixing fan, a middle fixing fan for collecting air and water passing through the upper fixing fan to the center is mounted, and a lower fixing fan is provided at the lower end of each of the first and second cyclone dust collecting tubes. It is characterized in that it is equipped with a diffusion discharge fan for diffusing and discharging the air flow and water passing through the water toward the surface,

In addition, the sedimentation water stored in the sedimentation tank is introduced into one side of the sedimentation tank, characterized in that the auxiliary tank for supplying water to the water injection pipe through a connecting pipe by a pump,

In addition, the discharge pipe of the sedimentation tank of the sedimentation tank is installed in the horizontal communication with the discharge pipe is characterized in that the inside of the discharge pipe rotatably mounted screw for discharging the precipitate.

1 is a cross-sectional view showing an operating state of the present invention.

2 and 3 are cross-sectional views taken along line A-A and line B-B of FIG.

4 is an enlarged cross-sectional view of a cyclone dust collecting tube that is an essential part of the present invention.

5 is a plan view of the upper and lower fixing fan of the cyclone dust collecting tube which is the main part of the present invention.

Figure 6 is a plan view of the middle fixing fan of the cyclone dust collecting tube that is the main part of the present invention.

7 is a plan view of a diffusion discharge fan of a cyclone dust collecting tube which is an essential part of the present invention.

8 is a cross-sectional view of a wet dust collector of the prior art.

※ Explanation of code for main part of drawing

1: settling tank 2: cyclone dust collection unit

3a, 3b: 1st and 2nd cyclone dust collector 4: Water spray pipe

5: screw motor 6: auxiliary tank

7: pump 12: support

13: sediment discharge port 14: discharge pipe

21: air flow inlet room 22: inlet

23: air discharge chamber 24: top plate

25: side blocking plate 26: air flow passage

27: outlet 31,32: upper and lower fixed fan

33: middle fixed fan 34: diffusion discharge fan

51 screw 61 filter

62 float 71 connector

An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view showing an operating state of the present invention, Figures 2 and 3 is a cross-sectional view taken along line AA and BB of Figure 1, Figure 4 is an enlarged cross-sectional view of a cyclone dust collecting tube which is an essential part of the present invention, Figure 5 6 is a plan view of the upper and lower fixing fans of the cyclone dust collecting tube which is the main part of the present invention, and FIG. 6 is a plan view of the middle fixing fan of the cyclone dust collecting tube which is the main part of the present invention, and FIG. The top view of the diffusion discharge fan mounted on the bottom of the main tube,

Reference numeral 1 denotes a sedimentation tank, 2 denotes a cyclone dust collecting unit, and an upper portion of the sedimentation tank 1 is opened and a support 12 having a through hole 11 formed on an inner circumferential surface thereof is fixedly attached thereto. The discharge port 13 for discharging the precipitate is formed.

A discharge pipe 14 communicating with the discharge port is horizontally attached to the lower end of the discharge port 13 of the precipitation tank 1, and the discharge pipe 14 is rotated by receiving rotational power from the screw motor 5 to settle. The screw 51 which discharges the deposit which settled in the tank 1 is attached.

In addition, the settling tank 1 is fixed to the bottom by the supporting leg (15).

The cyclone dust collecting unit 2 is installed at the upper part of the precipitation tank 1, and the cyclone dust collecting unit 2 has an open lower portion penetrating through the supporting part 12 and is stored in the precipitation tank 1. It is supported by the support 12 in a state of being settled on the water surface.

The airflow inlet chamber 21 formed at one side of the upper portion of the cyclone dust collecting unit 2 protrudes from the outside, and an inlet port 22 is connected to the airflow pipe for transporting airflow containing smoke or dust from the outside. At the bottom of the chamber 21, a plurality of first cyclone dust collecting tubes 3a are provided in a state in which the first cyclone dust collecting tube 3a extends long toward the settling water surface of the settling tank 1.

In addition, the cyclone dust collecting unit 2 is formed inside the airflow discharge chamber 23 which is installed at a low position while facing the airflow inlet chamber 21, wherein the airflow discharge chamber 23 is the top plate 24 ) And the side blocking plate 25 keeps the top and side closed while the bottom is open.

An airflow moving passage 26 is formed between the airflow inlet chamber 21 and the airflow discharge chamber 23 formed in the cyclone dust collecting unit 2, and an upper plate (2) in the airflow discharge chamber 23. A plurality of second cyclone dust collecting tubes 3b communicating with the airflow passage 26 while being supported by 24) are provided long toward the sediment water surface.

The lower end 25a of the side blocking plate 25 of the airflow discharge chamber 23 is configured to be deeply settled in the sedimented water in an extended state longer than the lower end of the cyclone dust collecting unit 2. On the outer wall surface of the airflow discharge chamber 23, a discharge port 27 is connected to the airflow discharge pipe for discharging the airflow passing through the second cyclone dust collecting pipe 3b to the outside.

The water injection pipe 4 is installed inside the air flow inlet chamber 21 and above the air flow discharge chamber 23, and the water injection pipe 4 is the air flow inlet chamber 21 and the air flow discharge chamber 23, respectively. The first and first cyclone dust collecting pipe (3a) (3b) installed in the same number as the number is configured to spray water from above, each of the water spray pipe (4) while spreading the first And an injection nozzle 41 for injecting into each of the second cyclone dust collecting tubes 3a and 3b.

Meanwhile, each of the first and second cyclone dust collecting tubes 3a and 3b includes an intermediate fixing fan between upper and lower fixing fans 31 and 32 and upper and lower fixing fans 31 and 32. 33), and a diffusion discharge fan 34 is attached to the lower end of each of the first and second cyclone dust collecting tubes.

Inside each of the upper and lower fixing fans 31 and 32, a plurality of diffusion wings 312 and 322 are radially formed between the small tubes 311 and 321 formed at the center thereof. The spreading wings are diffused while the water and the air passing through the upper and lower fixed fans are swirled toward the inner circumferential surface of the cyclone dust collecting tube so that the smoke or dust contained in the airflow is attached to the inner circumferential surface of the cyclone dust collecting tube. It is configured to show the action to be tangled with each other, the intermediate fixing fan 33 also has a plurality of converging wings 332 formed radially between the center and the small tube 331, the The converging wing is configured to act to concentrate water and airflow flowing down the inner circumferential surface of the cyclone dust collecting tube while passing through the upper fixing fan 31 to the center.

The lower end of the diffusion discharge fan 34 is shaped like a fallopian tube spreading outward, and a plurality of diffusion vanes 342 are radially formed between the conical diffusion tubes 341 installed therein. Water and airflow passing through the diffusion discharge pipe 34 are diffused and discharged in a state spreading in all directions.

On the other hand, one side of the settling tank (1) forms an auxiliary tank (6) to supply the settling water stored in the settling tank (1) to the water spray pipe (4), the settling tank (1) and the auxiliary tank ( In the connecting passage of 6), a filter 61 is installed to block sediment precipitated in the sedimented water from entering the auxiliary tank 6, and the auxiliary tank 6 has a lower end of the dust collecting unit 2. The float 62 which controls supply of replenishment water is provided so that the state which settled in this precipitation water can be maintained.

In addition, a pump 7 is installed in the connection pipe 71 connecting the auxiliary tank 6 and the water spray pipe 4.

Referring to the operation of the present invention configured as described above is as follows.

Through the inlet 22 through the air flow pipe for transporting the exhaust gas discharged with the exhaust from the industrial boiler, including the exhaust dust discharged from the construction site, including the dust, stone dust, etc. to the air inlet chamber 21 When one exhaust gas or exhaust air (hereinafter collectively referred to as 'transport air') is introduced, the pump 7 is operated so that the water stored in the auxiliary tank 6 is transferred to the first and second cyclones through the water spray pipe 4. Since it is configured to be injected above the dust collecting pipes 3a and 3b, an operation of collecting dust or dust contained in the conveying airflow introduced into the airflow inlet chamber 21 is started.

First, the transport airflow introduced into the airflow inlet chamber 21 is discharged into the plurality of first cyclone dust collecting pipes 3a, wherein the transport airflow of the water sprayed from the injection nozzle 41 of the water injection pipe 4 is used. Rapidly flowing into the first cyclone dust collecting tube (3a) by the injection force, and thus the transport stream flowing into the first cyclone dust collecting tube (3a) is included in the transporting stream in the process of colliding with the water to be injected Soot or dust comes into contact with water, and then spreads while swirling toward the inner circumferential surface of the first cyclone dust collecting tube 3a while hitting a plurality of spreading wings 312 when passing through the upper fixing fan 31. In the course of flowing down the inner circumferential surface soot or dust particles are tangled with each other and are primarily coupled, flows down the inner circumferential surface of the first cyclone dust collecting pipe (3a) and passes through the intermediate fixing fan (33) In the process of being concentrated in the center while hitting the converging wing 332, soot or dust particles are tangled again as they collide, and when passing through the lower fixing fan 32 again by the spreading wing 322 In the process of swirling and spreading toward the inner circumferential surface of the tube, the soot or dust particles included in the transport stream are entangled again, so that the soot or dust passing through the lower fixing fan 33 is combined into a large lump. Passed through the diffusion discharge fan 34 at the lowermost end of the first dust collecting tube (3a), the conical diffusion pipe (341) and the plurality of diffusion blades (342) of the diffusion discharge fan 34, the surface of the sedimented water fluctuates heavily. So that the soot or dust lumps are diffused in all directions along with the water so as to maintain a stable state. Will be precipitated from the time, fumes or dust particles, the primary dust collecting the removed transport stream is to go through the air flow path 26 moves upward air flow the discharge chamber (23).

As described above, most of the soot or dust particles included in the transport stream in the process of passing through the plurality of first cyclone dust collecting tubes 3a are combined in a lump state and fall to the sediment water surface without moving along the transport stream. While the sediment is settled, the remaining part is not properly coupled, so it floats through the airflow passage 26 along the transport airflow and moves upwards of the airflow discharge chamber 23 to flow into the second cyclone dust collecting tube 3b. Since the water is injected at a high pressure from the water spray pipe 4 installed above each of the second cyclone dust collecting pipes 3b, the fume or the binding activity of the first cyclone dust collecting pipe 3a was not properly performed. The dust particles are diffused by the upper fixing fan 31 and the concentrated action of the middle fixing fan 33 and by the lower fixing fan 32 while passing through the second cyclone dust collecting tube 3b. In addition, the smoke or dust particles which are not properly combined in the process of passing through the diffusion discharge fan 34 mounted at the lowermost end of the second cyclone dust collecting tube 3b are combined in a lumped state and are located above the airflow discharge chamber 23. Because it does not rise to fall to the surface of the sedimentation water, the transport stream discharged to the outlet 27 is discharged in the state that the smoke or dust is removed.

On the other hand, the lower end 25a of the side blocking plate 25 partitioning the airflow discharge chamber 23 and the airflow moving passage 26 of the cyclone dust collecting unit 2 is the cyclone dust collecting unit settled on the sediment water surface. Since the precipitated state is deeper than the lower end of (2), the surface of the sedimented water is fluctuated by the transport air discharged from the first cyclone dust collecting tube 3a and the second cyclone dust collecting tube 3b and the sprayed water. Even if the phenomenon appears, the sediment water levels below each of the first and second cyclone dust collecting tubes 3a and 3b are separated from each other by the lower end 25a of the side barrier plate 25 deeply deposited on the sediment water surface. Since it does not collide, each of the first and second cyclone dust collecting tubes (3a) (3b) are combined in a lumped state, so that the sedimentation of the soot or dust lumps falling on the surface of the sedimentation water is made smoothly. Soot or dust that has fallen to the sediment surface Is settled slowly to precipitate in the sludge state in the lower portion of the precipitation tank (1).

When the sediment deposited on the lower portion of the sedimentation tank 1 is accumulated as described above, when the screw 51 mounted on the outlet 14 is rotated by driving the screw motor 5, the sediment is transferred to the screw 51. It is to be discharged to the outside.

According to the present invention as described above by injecting the exhaust gas discharged with the smoke from the industrial boiler, or the air for transporting dust, such as dust dust, stone dust in the construction site into the airflow inlet chamber of the cyclone dust collection unit to the first cyclone dust collector pipe When the exhaust gas or dust particles collide with each other in the process of passing through the first cyclone dust collecting tube by the action of colliding with the water sprayed from the water spray pipe, the smoke that is not tangled with each other in the first cyclone dust collecting tube Alternatively, the dust particles are transported to the air flow passage and then secondarily combined in the second cyclone dust collection pipe, thereby increasing the dust collection rate of the smoke or dust included in the transport air stream. Since the bottom is settled in the sedimentation water, it is introduced into the cyclone dust collection unit In addition to the phenomenon that the transport airflow passing through the first and second cyclone dust collectors is not discharged to the outside, the lower side of the side blocking plate forming the air discharge chamber while partitioning between the first and second cyclone dust collectors is formed. As a means for deep sedimentation, the sediment water surface under the first cyclone dust collecting tube and the sediment water surface under the second cyclone dust collecting tube are prevented from colliding with each other, thereby being combined in the form of agglomerates in the first and second cyclone dust collecting tubes, respectively. The sedimentation effect of the dust or dust is smoothly effected, and the auxiliary tank is installed on one side of the sedimentation tank to supply the sedimentation water stored in the sedimentation tank to the first and second cyclone dust collecting tubes for injection. It is a useful invention that provides benefits such as reducing the consumption of water by making it possible to reduce maintenance costs.

Claims (4)

In the sedimentation tank in which the sediment is stored and the lower part is equipped with a screw outlet for discharging the sediment, A cyclone dust collecting unit fixedly installed at an upper end of the sedimentation tank while being supported by the support part while passing through the supporting part of the sedimentation tank with the lower part opened; An airflow inlet chamber formed in a sealed state on an upper end of the cyclone dust collecting unit and having an inlet connected to a transport pipe of an airflow to be processed; It is attached to the bottom to communicate with the air inlet chamber and extends vertically long toward the surface of the sediment water stored in the sedimentation tank, and is installed fixed fans for spreading and collecting the air flow flowing into the air inlet chamber swirled with water A plurality of first cyclone dust collectors; An airflow discharge chamber installed at a lower side opposite to the airflow inlet chamber and having only a lower portion opened by an upper plate and a side blocking plate; An airflow passage formed between the airflow inlet chamber and the airflow discharge chamber, the airflow passage being formed by a side blocking plate having a lower end deeply settled into the water of the settling water; It is installed to communicate with the air flow passage in the state attached to the upper plate of the air discharge chamber, extends vertically long toward the surface of the sedimentation tank, and diffuses the air flow flowing through the air flow chamber in a swirling state with water A plurality of second cyclone dust collecting tubes having fixed fans collected therein; And It is installed above the first cyclone dust collecting tube of the airflow inlet chamber and the second cyclone dust collecting tube of the airflow discharge chamber through the upper portion of the cyclone dust collecting unit, and is directed toward the first and second cyclone dust collecting tubes. A water spray pipe having a spray nozzle for spraying water; Cyclone dust collector of the water treatment method, characterized in that the configuration. The method of claim 1, The upper and lower fixing fans of the first and second cyclone dust collecting tubes are respectively installed in the upper and lower fixing fans to disperse the water sprayed from the air stream and the water spray pipe to be swirled toward the inner circumferential surface of each cyclone dust collecting tube. And, the middle of the upper and lower fixing fan is equipped with an intermediate fixing fan for collecting the air flow and water passing through the upper fixing fan to the center, while the lower fixing fan at the lower end of each of the first and second cyclone dust collector tube A cyclone dust collector of a water treatment method, comprising a diffusion discharge fan for diffusing and discharging airflow and water that have passed through the water. The method of claim 1, The cyclone dust collector of the water treatment method, characterized in that the sedimentation water stored in the sedimentation tank is introduced into one side of the sedimentation tank, and an auxiliary tank is formed to supply water to the water spray pipe through a connecting pipe by a pump. delete