CN210544006U - Dust treatment system of graphite processing workshop - Google Patents
Dust treatment system of graphite processing workshop Download PDFInfo
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- CN210544006U CN210544006U CN201920823396.8U CN201920823396U CN210544006U CN 210544006 U CN210544006 U CN 210544006U CN 201920823396 U CN201920823396 U CN 201920823396U CN 210544006 U CN210544006 U CN 210544006U
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Abstract
The utility model discloses a dust disposal system between graphite processing vehicle belongs to graphite production technical field. The system comprises a dust collection pipe network, a water curtain spray chamber, a circulating water tank and a water regeneration device; the dust collection pipe network comprises a main dust collection pipe, a plurality of branch dust collection pipes and a plurality of dust collection covers positioned in a dust source; a front throttling baffle, a water curtain spraying pipe, a rear throttling baffle and a gas-water separation plate are sequentially arranged in the water curtain spraying chamber along the left-right direction, and an exhaust fan is arranged on a gas outlet of the water curtain spraying chamber; the circulating water tank is positioned above the water curtain spray chamber, and a water inlet of the circulating water tank is connected with a water outlet of the water regeneration device through a pipeline with a circulating pump; the water regeneration device is positioned below the water curtain spray chamber and comprises a plurality of sedimentation tanks which are sequentially arranged from a water inlet to a water outlet of the water curtain spray chamber, and the water inlet of the water regeneration device is connected with a water outlet at the bottom of the water curtain spray chamber through a pipeline. The system has the advantages of low dust concentration at the dust source, high dust removal rate, energy conservation, water conservation and the like.
Description
Technical Field
The utility model belongs to the technical field of graphite production, in particular to dust disposal system between graphite processing vehicle.
Background
The graphite gasket is formed by cutting or punching a pure graphite plate or a metal (toothed plate, flat plate, net) reinforced graphite plate, and has a plurality of excellent sealing performances, such as: the material is stable in heat, self-lubricating, corrosion-resistant, non-aging, non-brittle and the like, can be stably used for a long time under severe working conditions, and needs little maintenance. The lining material can be different metal sheets. The type can be selected from no edge-covering, inner edge-covering, outer edge-covering and inner and outer edge-covering. The graphite cutting gasket is punched or cut from a pure graphite plate, has good corrosion resistance, high/low temperature resistance, good compression resilience and high strength, and various circular complex geometric gaskets are widely used for pipelines, valves, pumps, pressure vessels, heat exchangers, condensers, generators, air compressors, exhaust pipes, refrigerators and the like.
Graphite plates generate a large amount of dust in the production process and the cutting process, and dust in the graphite production process is generally treated by adopting a spray dust removal mode in the prior art. The patent with the application number of CN 201810027830.1 discloses a water smoke dust removal device for graphite production, which comprises a suction fan, a flue, a cold water pipe and a dust removal tank, wherein one end of the flue is connected with the suction fan, a graphite production workshop is arranged below the suction fan, the suction fan is arranged at the top of the graphite production workshop, a water inlet pipe is arranged at the top of the flue, a water outlet pipe is arranged at the bottom of the water inlet pipe, the cold water pipe is arranged inside the flue, one end of the cold water pipe is connected onto the water inlet pipe, the other end of the cold water pipe is connected onto the water outlet pipe, the dust removal tank is arranged at one side of the flue, an air inlet is arranged at one side of the dust removal tank, one end of the flue is arranged inside the air inlet, an air outlet is arranged at the top of the dust removal tank, a water baffle is, the inside of dust removal jar is provided with two shower, the bottom of shower all is provided with a plurality of high pressure nozzle, the bottom of dust removal jar is provided with the blow off pipe, the blow off pipe below is provided with the effluent water sump, the one end of blow off pipe is installed on the effluent water sump.
The applicant has found that when the graphite dust is treated by the above-mentioned apparatus, the particle size of the graphite dust is very small, and the particle size is distributed in the range of 10 μm to 1000 μm (mainly concentrated in the range of 100 μm to 200 μm), and the graphite dust can be suspended in the air for a long time, and the concentrated treatment effect is not good. And the existing spraying device has the defects of large occupied area, large water consumption, poor dust removal effect (the dust removal rate is less than 95 percent) and the like.
Disclosure of Invention
In order to solve the above problems, the present invention provides a dust treatment system for a graphite processing workshop, wherein the applicant finds that the graphite dust with a particle size of less than 400 μm has a good effect of collecting at a dust source, the dusty airflow is reduced and accelerated by a throttling baffle under the suction action of an exhaust fan, and at this time, the high-speed airflow impacts the water surface (or water drops formed by spraying), and part of the dust is captured by the collision action; in addition, after the airflow is accelerated, fine water drops move at a high speed between the two throttle plates to form a water curtain space, dust and the water drops are captured by collision or adhesion in the process of mutual movement, the front throttle plate and the rear throttle plate form a relatively narrow semi-closed space with the top of the water curtain spray chamber, the air-water contact probability is increased, a good dust removal effect is achieved, and clean air is discharged through the air outlet. The technical scheme is as follows:
the embodiment of the utility model provides a dust treatment system of a graphite processing workshop, which comprises a dust collection pipe network, a water curtain spray chamber 1, a circulating water tank 2 and a water regeneration device 3; the dust collection pipe network comprises a main dust collection pipe 4, a plurality of dust collection branch pipes 5 and a plurality of dust collection covers 6 positioned at dust sources, two ends of each dust collection branch pipe 5 are respectively connected with the corresponding dust collection cover 6 and the corresponding main dust collection pipe 4, and the other end of each main dust collection pipe 4 is communicated with an air inlet of the water curtain spray chamber 1; the water curtain spray chamber 1 is arranged along the front-back direction, the front part and the back part of the water curtain spray chamber are respectively provided with an air inlet and an air outlet, the bottom of the water curtain spray chamber is provided with a water outlet, the inner edge of the water curtain spray chamber is sequentially provided with a front throttle baffle 7, a water curtain spray pipe 8, a back throttle baffle 9 and an air-water separation plate 10 along the left-right direction, and the air outlet is provided with an exhaust fan 11; the water curtain spray pipe 8 is arranged at the top of the water curtain spray chamber 1 and is communicated with a water outlet of the circulating water tank 2 through a pipeline, the front throttle baffle 7 and the rear throttle baffle 9 are arranged at the top of the water curtain spray chamber 1 and are obliquely and downwards arranged from front to back, and the water-gas separation plate 10 divides the water curtain spray chamber 1 into a front cavity and a rear cavity; the circulating water tank 2 is positioned above the water curtain spray chamber 1, and a water inlet of the circulating water tank is connected with a water outlet of the water regeneration device 3 through a pipeline with a circulating pump 12; the water regeneration device 3 is located below the water curtain spray chamber 1 and comprises a plurality of sedimentation tanks which are sequentially arranged from water inlets to water outlets of the sedimentation tanks, and the water inlets of the sedimentation tanks are connected with a water outlet of the water curtain spray chamber 1 through pipelines.
The water curtain spray chamber 1 in the embodiment of the utility model is of an L-shaped rectangular cavity structure and comprises a horizontal cavity arranged in the front-back direction and a vertical cavity arranged vertically upwards at the rear side of the horizontal cavity; the air inlet of the water curtain spray chamber 1 is positioned at the front end of the horizontal cavity, and the air outlet of the water curtain spray chamber is arranged at the top end of the vertical cavity; the top in horizontal cavity is located to preceding throttle baffle 7, water curtain shower 8 and back throttle baffle 9, gas-water separation board 10 is by preceding to the back downward setting of slope and locate the junction in horizontal cavity and vertical cavity.
Preferably, the bottom of the horizontal cavity in the embodiment of the present invention is a tapered structure with a large top and a small bottom, and the water outlet of the water curtain shower chamber 1 is disposed at the bottom of the tapered structure.
Wherein, the front throttle baffle 7 and the rear throttle baffle 9 in the embodiment of the utility model have a gap for air flow to pass through and the included angle between the gap and the horizontal plane is 45-70 degrees.
Further, the embodiment of the utility model provides an in be equipped with wind-force adjusting valve 13 on the dust absorption branch pipe 5, be equipped with water level regulating valve 14 on the pipeline between water curtain spray room 1 and the water regenerating unit 3, be equipped with on the pipeline between circulating water tank 2 and the water curtain spray room 1 and spray governing valve 15.
Preferably, the middle part of the circulation water tank 2 in the embodiment of the present invention is provided with a filter screen 16 to separate the circulation water tank, and the water inlet and the water outlet on the circulation water tank are respectively located at two sides of the filter screen 16.
Further, the embodiment of the present invention provides a circulating water tank 2, and a water replenishing port 17 is provided on the same side of the water inlet.
Preferably, the air outlet of the water curtain spray chamber 1 in the embodiment of the present invention is provided with a wire mesh demister 18.
Specifically, the suction inlet of the dust hood 6 in the embodiment of the present invention is strip-shaped and has a distance of 0.15-0.25m from the dust source.
Preferably, the water curtain spray pipe 8 in the embodiment of the present invention is a hard water pipe with closed left and right ends, and spray holes 19 are uniformly distributed on the lower side of the water curtain spray pipe; the aperture of the spraying holes 19 is 2-5mm, and the distance between adjacent spraying holes 19 is 3-8 mm.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is: the embodiment of the utility model provides a dust disposal system in graphite workshop, the dust concentration near the workshop working face after this system handles reduces to 1.0-1.5mg/m3Basically no dust is suspended, and the working experience is good; no dust deposition occurs in the main dust exhaust pipe and the branch pipe, the dust removal efficiency reaches 98-99%, and the dust concentration of the exhaust port is less than 1.0mg/m3The discharge meets the requirements; the power consumption is reduced by 30-40%, the dedusting water can be recycled, a large amount of water resources can be saved, and the production cost is saved.
Drawings
Fig. 1 is a schematic structural diagram of a dust treatment system of a graphite processing plant according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a dust hood in an embodiment of the present invention;
fig. 3 is a schematic structural view of a water curtain shower pipe in an embodiment of the present invention.
In the figure: 1 water curtain spray chamber, 2 circulating water tank, 3 water regenerating device, 4 main dust-absorbing pipe, 5 branch dust-absorbing pipe, 6 dust-absorbing cover, 7 front throttle baffle, 8 water curtain spray pipe, 9 rear throttle baffle, 10 gas-water separation plate, 11 exhaust fan, 12 circulating pump, 13 wind power regulating valve, 14 water level regulating valve, 15 spray regulating valve, 16 filter screen, 17 water compensating opening, 18 silk screen demister, 19 spray hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1-3, the embodiment of the present invention provides a dust treatment system for a graphite processing workshop, which includes a dust collection pipe network, a water curtain spray chamber 1, a circulating water tank 2, a water regeneration device 3, etc. The dust collection pipe network is used for collecting dust at a dust source, the water curtain spray chamber 1 adopts spraying to treat the dust,the circulating water tank 2 is used for providing clean water for the water curtain spray chamber 1, and the water regeneration device 3 removes dust in the sprayed circulating water through settling, filtering and the like to obtain clean water. Wherein, the dust absorption pipe network includes that the dust absorption is responsible for 4, many dust absorption branch pipes 5 and a plurality of suction hood 6 that are located the dust source etc. and every dust absorption branch pipe 5 corresponds sets up a suction hood 6, and the both ends of dust absorption branch pipe 5 are connected with suction hood 6 and dust absorption person in charge 4 respectively, and the dust absorption is responsible for the other end of 4 and the air inlet intercommunication of water curtain spray room 1. Specifically, the pipe diameter of the main dust collection pipe 4 is 200-280mm, and the wind speed is 8-11 m/s; the wind speed of the dust collection branch pipe 5 is about 5m/s, the wind speed at the dust collection opening of the dust collection cover 6 is about 3m/s, the included angle of the inlet is about 60 degrees (inclined upwards), and the sectional area of the inlet is 0.05-0.08m2. The water curtain spray chamber 1 is arranged along the front-back direction, can be of a tunnel structure, is provided with an air inlet and an air outlet at the front part and the rear part (open) respectively, is provided with a water outlet at the bottom part, is internally provided with a front throttle baffle 7, a water curtain spray pipe 8, a rear throttle baffle 9 and a gas-water separation plate 10 from the front to the rear in the left-right direction in sequence, and is provided with an exhaust fan 11 for driving air to flow. Wherein, the front throttle baffle 7 and the rear throttle baffle 9 can be stainless steel plates which are positioned above the water surface in the water curtain spray chamber 1; the water curtain spraying pipe 8 sprays water to form a water curtain; the gas-water separation plate 10 is used for gas-water separation, and can be specifically a water-proof grid; the exhaust fan 11 can be a 4-73 type dust-exhausting centrifugal fan. The water curtain spray pipe 8 is arranged at the top of the water curtain spray chamber 1 (between the front throttle baffle 7 and the rear throttle baffle 9) and is communicated with the water outlet of the circulating water tank 2 through a pipeline, and the front throttle baffle 7 and the rear throttle baffle 9 are arranged at the top of the water curtain spray chamber 1 and are obliquely downwards arranged from front to back. The gas-water separation plate 10 divides the water curtain spray chamber 1 into a front cavity and a rear cavity. The circulating water tank 2 is positioned above the water curtain spray chamber 1, and the water inlet of the circulating water tank is connected with the water outlet of the water regeneration device 3 through a pipeline with a circulating pump 12; specifically, the water-circulating tank 2 is a rectangular tank structure, and the use of a water pump can be reduced (and the spraying speed can be reduced so as to facilitate the movement of water drops) by adopting a high-position form. The water regeneration device 3 is located below the water curtain spray chamber 1 (the use of water pumps can be reduced), and comprises a plurality of (2-5, generally three, in turn) water inlet to water outletCommunicated) sedimentation tank (other structures can be arranged according to the requirement, such as a filter press, etc.), the water inlet of which is connected with the water outlet at the bottom of the water curtain spray chamber 1 through a pipeline. The sedimentation tank is a common sedimentation tank, such as an inclined plate sedimentation tank, and is generally arranged on the ground.
Referring to fig. 1, the water curtain shower 1 in the embodiment of the present invention is an L-shaped rectangular cavity structure, which includes a horizontal cavity (rectangular cavity) horizontally disposed along the front and back direction and a vertical cavity (rectangular cavity) vertically disposed upward at the rear side of the horizontal cavity. The air inlet of the water curtain spray chamber 1 is positioned at the front end of the horizontal cavity, and the air outlet of the water curtain spray chamber is arranged at the top end of the vertical cavity. The front throttle baffle 7, the water curtain spray pipe 8 and the rear throttle baffle 9 are arranged at the top of the horizontal cavity, and the gas-water separation plate 10 is obliquely downwards arranged from front to back and is arranged at the joint of the horizontal cavity and the vertical cavity (an L-shaped corner, preferably above the water surface).
Preferably, referring to fig. 1, the bottom of the horizontal chamber in the embodiment of the present invention is a tapered structure with a large top and a small bottom to discharge dust, and the water outlet of the water curtain shower chamber 1 is provided at the bottom of the tapered structure. More preferably, the conical structure is located directly below the front and rear throttle flaps 7 and 9.
Referring to fig. 1, in the embodiment of the present invention, a gap for air to pass through is provided between the front throttle flap 7 and the rear throttle flap 9 and the bottom of the horizontal cavity (and a gap is provided between the front throttle flap and the inner water surface, and the gap is adjusted according to actual requirements, preferably larger than 3 cm), and the included angle between the gap and the horizontal plane (horizontal cavity top plate) is 45 ° to 70 °. Preferably, the angle between the front throttle flap 7 and the horizontal plane is larger than the angle between the rear throttle flap 9 and the horizontal plane.
Further, referring to fig. 1, in the embodiment of the present invention, a wind power adjusting valve 13 is disposed on the dust collecting branch pipe 5 for adjusting the suction force of each dust hood 6, a water level adjusting valve 14 is disposed on the pipeline between the water outlet of the water curtain spray chamber 1 and the water regeneration device 3 for adjusting the water depth therein and then adjusting the wind speed of the water curtain, and a spray adjusting valve 15 is disposed on the pipeline between the circulating water tank 2 and the water curtain spray chamber 1 for adjusting the spray amount.
Preferably, referring to fig. 1, the middle of the circulation water tank 2 in the embodiment of the present invention is provided with a filter screen 16 to separate the circulation water tank into two grooves for preventing dust from blocking the spraying holes 19, and the water inlet and the water outlet are respectively located at two sides of the filter screen 16. Of course, this patent also can adopt other forms to realize filtering, for example sets up the filter screen in water outlet department. Further, the aperture of the screen 16 is smaller than that of the shower holes 19.
Further, referring to fig. 1, the circulating water tank 2 in the embodiment of the present invention is provided with a water replenishing port 17 for replenishing clean water on the same side of the water inlet (on the same side of the filter screen 16). Of course, a sewage draining outlet is arranged on the circulating water tank 2 or the pipeline connected with the outlet of the circulating pump 12.
Preferably, referring to fig. 1, in the embodiment of the present invention, a wire mesh demister 18 is disposed on an air outlet of the water curtain spray chamber 1 for prolonging a service life of the exhaust fan 11, the wire mesh demister 18 is disposed adjacent to and below the exhaust fan 11, and the gas is exhausted from the exhaust fan 11 after passing through the gas-water separation plate 10 and the wire mesh demister 18 in sequence.
Specifically, referring to fig. 2, the suction inlet of the dust hood 6 in the embodiment of the present invention is strip-shaped and has a distance of 0.15-0.25m from the dust source (e.g., cutting tool). The air suction opening is usually arranged parallel to the working surface and adopts a side suction mode (generally, the dust hood 6 is obliquely arranged). Preferably, the upper side of the air suction opening is horizontally provided with a baffle.
Preferably, referring to fig. 3, the water curtain shower pipe 8 (left-right direction setting) in the embodiment of the present invention is a hard water pipe with closed left and right ends, and the lower side of the hard water pipe is uniformly distributed with shower holes 19. The aperture of the spray holes 19 is 2-5mm, and the distance between adjacent spray holes 19 is 3-8 mm.
The embodiment of the utility model provides a dust disposal system in graphite workshop, the dust concentration near the workshop working face after this system handles reduces to 1.0-1.5mg/m3Basically no dust is suspended, and the working experience is good; no dust deposition occurs in the main dust exhaust pipe and the branch pipe, the dust removal efficiency reaches 98-99%, and the dust concentration of the exhaust port is less than 1.0mg/m3The discharge meets the requirements; the power consumption is reduced by 30-40%, the dedusting water can be recycled, a large amount of water resources can be saved, and the production cost is saved.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A dust treatment system of a graphite processing workshop is characterized by comprising a dust absorption pipe network, a water curtain spray chamber (1), a circulating water tank (2) and a water regeneration device (3);
the dust collection pipe network comprises a main dust collection pipe (4), a plurality of dust collection branch pipes (5) and a plurality of dust collection covers (6) located at dust sources, wherein two ends of each dust collection branch pipe (5) are respectively connected with the dust collection covers (6) and the main dust collection pipe (4), and the other end of the main dust collection pipe (4) is communicated with an air inlet of the water curtain spray chamber (1);
the water curtain spray chamber (1) is arranged in the front-back direction, the front part and the back part of the water curtain spray chamber are respectively provided with an air inlet and an air outlet, the bottom of the water curtain spray chamber is provided with a water outlet, a front throttle baffle (7), a water curtain spray pipe (8), a back throttle baffle (9) and an air-water separation plate (10) are sequentially arranged in the water curtain spray chamber in the left-right direction, and an exhaust fan (11) is arranged on the air outlet; the water curtain spray pipe (8) is arranged at the top of the water curtain spray chamber (1) and is communicated with a water outlet of the circulating water tank (2) through a pipeline, the front throttle baffle (7) and the rear throttle baffle (9) are arranged at the top of the water curtain spray chamber (1) and are obliquely and downwards arranged from front to back, and the water-gas separation plate (10) divides the water curtain spray chamber (1) into a front cavity and a rear cavity;
the circulating water tank (2) is positioned above the water curtain spray chamber (1) and the water inlet of the circulating water tank is connected with the water outlet of the water regeneration device (3) through a pipeline with a circulating pump (12);
the water regeneration device (3) is positioned below the water curtain spray chamber (1) and comprises a plurality of sedimentation tanks which are sequentially arranged from a water inlet to a water outlet of the water regeneration device, and the water inlet of the water regeneration device is connected with a water outlet of the water curtain spray chamber (1) through a pipeline.
2. The dust treatment system of the graphite processing workshop according to claim 1, wherein the water curtain spray chamber (1) has an L-shaped rectangular cavity structure, and comprises a horizontal cavity arranged in the front-back direction and a vertical cavity arranged vertically upwards at the rear side of the horizontal cavity; the air inlet of the water curtain spray chamber (1) is positioned at the front end of the horizontal cavity, and the air outlet of the water curtain spray chamber is arranged at the top end of the vertical cavity; the top in horizontal cavity is located to preceding throttle baffle (7), water curtain shower (8) and back throttle baffle (9), gas-water separation board (10) are by preceding to the back downward setting of slope and locate the junction in horizontal cavity and vertical cavity.
3. The dust treatment system of the graphite processing workshop according to claim 2, wherein the bottom of the horizontal cavity is of a conical structure with a large top and a small bottom, and the water outlet of the water curtain spray chamber (1) is arranged at the bottom of the conical structure.
4. The graphite processing plant dust handling system of claim 2, wherein the front throttle flap (7) and the rear throttle flap (9) have gaps between them and the bottom of the horizontal chamber through which the gas flows and the angle between them and the horizontal is 45 ° -70 °.
5. The dust treatment system of a graphite processing plant according to claim 1, characterized in that a wind regulating valve (13) is provided on the dust collection branch pipe (5), a water level regulating valve (14) is provided on the pipeline between the water curtain spray chamber (1) and the water regeneration device (3), and a spray regulating valve (15) is provided on the pipeline between the circulating water tank (2) and the water curtain spray chamber (1).
6. The graphite processing plant dust disposal system of claim 1, wherein the circulating water tank (2) is divided by a filter screen (16) in the middle, and the water inlet and the water outlet are respectively positioned at two sides of the filter screen (16).
7. Dust handling system of a graphite processing plant according to claim 6, characterized in that the water recirculation tank (2) is provided with a water replenishment opening (17) on the same side as the water inlet opening.
8. The graphite processing plant dust disposal system of claim 1, wherein a wire mesh demister (18) is provided at an air outlet of the water curtain spray chamber (1).
9. The dust handling system of a graphite processing plant according to claim 1, characterized in that the suction inlet of the suction hood (6) is strip-shaped and is at a distance of 0.15-0.25m from the dust source.
10. The dust treatment system of the graphite processing workshop according to claim 1, wherein the water curtain spray pipes (8) are hard water pipes with closed left and right ends, and spray holes (19) are uniformly distributed on the lower sides of the water curtain spray pipes; the aperture of the spraying holes (19) is 2-5mm, and the distance between adjacent spraying holes (19) is 3-8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920823396.8U CN210544006U (en) | 2019-06-03 | 2019-06-03 | Dust treatment system of graphite processing workshop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920823396.8U CN210544006U (en) | 2019-06-03 | 2019-06-03 | Dust treatment system of graphite processing workshop |
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| Publication Number | Publication Date |
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| CN210544006U true CN210544006U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920823396.8U Active CN210544006U (en) | 2019-06-03 | 2019-06-03 | Dust treatment system of graphite processing workshop |
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| CN (1) | CN210544006U (en) |
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2019
- 2019-06-03 CN CN201920823396.8U patent/CN210544006U/en active Active
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