CN212523496U - Wet type collecting and processing system for graphite dust - Google Patents
Wet type collecting and processing system for graphite dust Download PDFInfo
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- CN212523496U CN212523496U CN202020710493.9U CN202020710493U CN212523496U CN 212523496 U CN212523496 U CN 212523496U CN 202020710493 U CN202020710493 U CN 202020710493U CN 212523496 U CN212523496 U CN 212523496U
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Abstract
The utility model discloses a wet-type graphite dust collecting and processing system, which comprises a dust collecting device and a spray tower, wherein the top of the spray tower is provided with a gas outlet, the bottom of the spray tower is provided with a liquid outlet, the side part of the spray tower is provided with a gas inlet, and a gas delivery pipe is connected with the gas inlet of the spray tower; the lower part in the spray tower is provided with a horn-shaped air outlet cover, the air outlet cover is horizontally arranged, the outlet of the air outlet cover faces downwards, and the inlet of the air outlet cover is connected with the air inlet of the spray tower; the edge of the air outlet cover is tilted upwards, and drain holes which are arranged annularly are densely distributed near the edge; because the gas outlet cover guides the gas flow, the gas is favorably and fully diffused, the contact probability of the gas and the liquid fog is improved, the absorption efficiency of the graphite dust is further improved, the absorption rate exceeds 90 percent, and the content of the graphite dust in the discharged gas is greatly reduced.
Description
Technical Field
The utility model belongs to the technical field of the environmental protection equipment, concretely relates to processing system is collected to graphite dust wet-type.
Background
The sucker rod is in forging production process, in order to improve rust resistance, need add the graphite coating at the skin of sucker rod, has a large amount of graphite dusts to escape at the graphite in-process of adding. The graphite dust is very fine and easy to adhere, so that the body health is influenced when the graphite dust is inhaled into a human body, and the human body is very easy to suffer from pneumoconiosis when the graphite dust works in an environment containing the graphite dust for a long time. In addition, the graphite dust in the workshop is easy to explode when reaching a certain concentration. In order to ensure the physical health of workers and the safe production, the graphite dust in a workshop needs to be recycled. The existing spray tower has poor effect of absorbing and treating graphite dust, and the content of the graphite dust in the exhaust gas is high, so that the exhaust gas can not reach the emission standard.
SUMMERY OF THE UTILITY MODEL
The utility model provides a processing system is collected to graphite dust wet-type, aim at solve the relatively poor problem of current clarification plant to graphite dust treatment effect.
Therefore, the utility model adopts the following technical scheme:
a wet-type graphite dust collecting and processing system comprises a dust collecting device and a spray tower;
the dust collecting device comprises a gas collecting hood, an air inlet fan and a gas conveying pipe, wherein the gas collecting hood is arranged in a dust generating area, one end of the gas conveying pipe is connected with the gas collecting hood, the other end of the gas conveying pipe is connected with a dust removing device, and the air inlet fan is arranged on the gas conveying pipe;
the top of the spray tower is provided with an air outlet, the bottom of the spray tower is provided with a liquid outlet, and the side part of the spray tower is provided with an air inlet; the lower part in the spray tower is provided with a horn-shaped air outlet cover, the horn mouth of the air outlet cover faces downwards, the narrow opening of the air outlet cover is connected with the air inlet of the spray tower, and an annular air flow ascending channel is formed between the air outlet cover and the inner wall of the spray tower; a circle of annularly arranged drain holes are formed in the peripheral edge of the air outlet cover, and the drain holes are densely distributed; a first spraying layer, a second spraying layer and a demisting layer are sequentially arranged above the gas outlet cover; one side of spray column is equipped with the sedimentation tank, the middle part of sedimentation tank is equipped with vertical filter, the filter separates the sedimentation tank for settling zone and clear water district, settling zone is connected with the liquid outlet of spray column through the drain pipe, and the clear water district sprays the layer through circulating water pump and defeated water piping connection first and sprays the layer with the second.
Further, the edge of the air outlet cover is tilted upwards.
Further, the outer diameter of the air outlet cover is slightly smaller than the inner diameter of the spray tower.
Furthermore, the bottom of the sedimentation tank is conical, the bottoms of the sedimentation zone and the clean water zone are both provided with drain pipes, and drain valves are arranged on the drain pipes.
Furthermore, a liquid level switch is arranged on the drain pipe.
Further, the gas outlet of the spray tower is connected with a chimney through an exhaust fan.
Furthermore, the spray heads of the first spray layer and the second spray layer adopt spiral spray heads.
Further, the bottom of the spray tower is conical.
Further, the filter plate is a PP filter plate.
The beneficial effects of the utility model reside in that: the gas outlet cover guides the gas flow, so that the gas is fully diffused, the contact area of the gas and the liquid mist is increased, the absorption efficiency of the graphite dust is improved, and the absorption rate of the device to the graphite dust exceeds 90%; the graphite dust content in the exhaust gas is effectively reduced, and the health of operators is guaranteed; the edge of the air outlet cover forms a water curtain, and the air flow passes through the water curtain to further absorb dust.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a schematic structural view of the air outlet cover of the present invention;
in the figure: 2-gas pipe, 3-spray tower, 4-gas outlet, 5-liquid outlet, 6-gas inlet, 7-gas outlet hood, 8-first spray layer, 9-second spray layer, 10-demisting layer, 11-chimney, 12-gas exhaust pipe, 13-sedimentation tank, 14-filter plate, 15-clear water zone, 16-sedimentation zone, 17-blow-off pipe, 18-water drain pipe, 19-circulating water pump, 20-water pipe, and 21-water drain hole.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1 and 2, a graphite dust wet collecting and processing system comprises a dust collecting device and a spray tower. The dust collecting device comprises a gas collecting hood, an air inlet fan and a gas conveying pipe 2, wherein the gas collecting hood is arranged above or on the side surface of the dust generating area, and is convenient for absorbing graphite-containing dust. One end of the gas transmission pipe 2 is connected with the gas collecting hood, the other end is connected with the spray tower, the gas inlet fan is arranged on the gas transmission pipe, and under the action of the gas inlet fan, graphite dust can enter the spray tower through the gas collecting hood and the gas transmission pipe 2.
The top and the bottom of the spray tower 3 are both in a conical shape, and a plurality of inspection windows are arranged on the shell. The top of the spray tower is provided with an air outlet 4, the bottom of the spray tower is provided with a liquid outlet 5, the side of the spray tower is provided with an air inlet 6, and the air delivery pipe 2 is connected with the air inlet 6 of the spray tower 3. The lower part in the spray column 3 is equipped with tubaeform air outlet cover 7, and air inlet 6 of spray column 3 is connected downwards, the nozzle opening of air outlet cover 7, the nozzle opening, and the edge of air outlet cover 7 is upwards curled up, and the periphery edge is equipped with the wash port 21 that the round annular set up, and the diameter of air outlet cover 7 exceeds two-thirds of spray column 3 internal diameter. A first spraying layer 8, a second spraying layer 9 and a demisting layer 10 are sequentially arranged above the gas outlet cover 7, and a chimney 11 is connected with the gas outlet 4 of the spraying tower 3 through a gas exhaust pipe 12. The first layer 8 that sprays includes the support rack and a plurality of shower nozzle of disc, supports on the rack is fixed in the inner wall of spray column 3, and the shower nozzle is densely covered on supporting the rack, and the shower nozzle chooses spiral shower nozzle for use, and the second sprays the structure on layer 9 and first layer 8 that sprays the same.
And a sedimentation tank 13 is also arranged on one side of the spray tower 3, the sedimentation tank 13 is connected with the liquid outlet 5 of the spray tower 3 through a drain pipe 18, and the upper edge of the sedimentation tank 13 is as high as the lower edge of the gas outlet cover 7. The bottom of sedimentation tank 13 is the toper, and the centre is equipped with vertical filter 14, and filter 14 adopts the pp filter. A settling zone 16 is formed on one side of the filter plate 14, a clean water zone 15 is formed on the other side of the filter plate, the drain pipe 18 is connected with the settling zone 16, the bottoms of the settling zone 16 and the clean water zone 15 are both provided with a drain pipe 17, and a drain valve is arranged on the drain pipe 17. One end of the water delivery pipe 20 extends into the clear water area 15, the other end of the water delivery pipe is respectively connected with the first spraying layer 8 and the second spraying layer 9, and the circulating water pump 19 is connected to the water delivery pipe 20. In order to facilitate the detection of the water level in the sedimentation tank 13, a magnetic floating ball type liquid level meter is also arranged in the sedimentation tank 13.
The working principle of the utility model is as follows:
firstly, clear water is injected into the sedimentation tank 13, and the rising condition of the water level is monitored in real time through the magnetic floating ball type liquid level meter until the water level rises to a position 5-10 cm away from the lower edge of the air outlet cover 7. Then the circulating water pump 19, the intake fan and the exhaust fan are started.
After the graphite dust enters the spray tower 3, the gas blows to the liquid surface under the guiding action of the gas outlet cover 7 and excites water mist, a small part of the graphite dust enters the water body under the inertia action and is absorbed, and a part of the graphite dust is absorbed by the excited water mist. Then the gas moves to the periphery along the horizontal direction and passes through an airflow ascending channel between the gas outlet cover 7 and the spray tower 3 to enter the middle part of the spray tower 3, the first spray layer 8 and the second spray layer 9 spray a large amount of water mist, most graphite dust carried by the gas when passing through the first spray layer 8 and the second spray layer 9 is absorbed, the gas moves upwards to pass through the demisting layer 10 to remove water vapor carried by the gas, and then the purified gas is discharged through the exhaust pipe 12 and the chimney 11.
The water sprayed by the first spraying layer 8 and the second spraying layer 9 falls on the air outlet cover 7, converges to the lower part of the edge along the upper surface of the air outlet cover 7, and finally flows down through the water drain hole 21 on the edge of the air outlet cover 7. When the water flows downwards through the water discharge hole 21, a cylindrical water curtain or water curtain is formed around the gas outlet cover 7, and the graphite dust entrained by the gas passing through the water curtain can be further absorbed.
The water falls to the bottom of the spray tower 3 and then flows back to a settling zone 16 of the settling tank 13 through a drain pipe 18, when the water body passes through the filter plate 14 and enters a clear water zone 15, most graphite particles in the water body are filtered and trapped in the settling zone 16, and a small amount of graphite particles are entrained in the water body in the clear water zone 15. When the graphite in the settling zone 16 and the clear water zone 15 is accumulated to a certain degree, a drain valve at the bottom is opened to discharge the water body and the graphite sediment, and the graphite can be recycled after being dried.
First spray 8 and second and spray the shower nozzle on the layer 9 and choose spiral nozzle for use, and spiral nozzle constantly rotates when spraying water, and spun water smoke collides each other for water smoke is even more fine and close, reduces the space, helps improving absorption efficiency. Meanwhile, the rotary spray nozzle can also clean graphite dust on the inner wall of the spray tower 3.
It should be noted that the above are only some embodiments of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (9)
1. A wet-type graphite dust collecting and processing system is characterized by comprising a dust collecting device and a spray tower;
the dust collecting device comprises a gas collecting hood, an air inlet fan and a gas conveying pipe, wherein the gas collecting hood is arranged in a dust generating area, one end of the gas conveying pipe is connected with the gas collecting hood, the other end of the gas conveying pipe is connected with a dust removing device, and the air inlet fan is arranged on the gas conveying pipe;
the top of the spray tower is provided with an air outlet, the bottom of the spray tower is provided with a liquid outlet, and the side part of the spray tower is provided with an air inlet; the lower part in the spray tower is provided with a horn-shaped air outlet cover, the horn mouth of the air outlet cover faces downwards, the narrow opening of the air outlet cover is connected with the air inlet of the spray tower, and an annular air flow ascending channel is formed between the air outlet cover and the inner wall of the spray tower; a circle of annularly arranged drain holes are formed in the peripheral edge of the air outlet cover, and the drain holes are densely distributed; a first spraying layer, a second spraying layer and a demisting layer are sequentially arranged above the gas outlet cover; one side of spray column is equipped with the sedimentation tank, the middle part of sedimentation tank is equipped with vertical filter, the filter separates the sedimentation tank for settling zone and clear water district, settling zone is connected with the liquid outlet of spray column through the drain pipe, and the clear water district sprays the layer through circulating water pump and defeated water piping connection first and sprays the layer with the second.
2. The wet collection and processing system for graphite dust of claim 1, wherein the edge of the gas outlet hood is turned upward.
3. The wet graphite dust collection and processing system of claim 1, wherein the outer diameter of the gas outlet hood is slightly smaller than the inner diameter of the spray tower.
4. The wet graphite dust collecting and processing system of claim 1, wherein the bottom of the sedimentation tank is conical, and the bottoms of the sedimentation zone and the clean water zone are provided with drain pipes, and the drain pipes are provided with drain valves.
5. The wet collection and treatment system for graphite dust as claimed in claim 1, wherein a liquid level switch is provided on the drain pipe.
6. The wet collection and treatment system for graphite dust as claimed in claim 1, wherein the outlet of the spray tower is connected to a chimney through an exhaust fan.
7. The wet collection and treatment system for graphite dust as claimed in claim 1, wherein the spray heads of the first and second spray layers are spiral spray heads.
8. The wet collection and processing system for graphite dust of claim 1, wherein the bottom of the spray tower is tapered.
9. The wet collection graphite dust handling system of claim 1, wherein the filter plate is a PP filter plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020710493.9U CN212523496U (en) | 2020-05-04 | 2020-05-04 | Wet type collecting and processing system for graphite dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020710493.9U CN212523496U (en) | 2020-05-04 | 2020-05-04 | Wet type collecting and processing system for graphite dust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212523496U true CN212523496U (en) | 2021-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020710493.9U Active CN212523496U (en) | 2020-05-04 | 2020-05-04 | Wet type collecting and processing system for graphite dust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212523496U (en) |
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2020
- 2020-05-04 CN CN202020710493.9U patent/CN212523496U/en active Active
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