CN112393355A - Welding shop flue gas processing system - Google Patents
Welding shop flue gas processing system Download PDFInfo
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- CN112393355A CN112393355A CN202011513888.0A CN202011513888A CN112393355A CN 112393355 A CN112393355 A CN 112393355A CN 202011513888 A CN202011513888 A CN 202011513888A CN 112393355 A CN112393355 A CN 112393355A
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- flue gas
- gas treatment
- treatment tower
- pipe
- tower
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 179
- 239000003546 flue gas Substances 0.000 title claims abstract description 179
- 238000003466 welding Methods 0.000 title claims abstract description 60
- 238000012545 processing Methods 0.000 title claims description 7
- 239000002893 slag Substances 0.000 claims abstract description 68
- 238000007664 blowing Methods 0.000 claims abstract description 22
- 238000007599 discharging Methods 0.000 claims description 43
- 238000003780 insertion Methods 0.000 claims description 40
- 230000037431 insertion Effects 0.000 claims description 40
- 238000005406 washing Methods 0.000 claims description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 238000005507 spraying Methods 0.000 claims description 27
- 239000007788 liquid Substances 0.000 claims description 23
- 239000007789 gas Substances 0.000 claims description 20
- 238000005192 partition Methods 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 13
- 239000000779 smoke Substances 0.000 claims description 12
- 239000004744 fabric Substances 0.000 claims description 11
- 238000000605 extraction Methods 0.000 claims description 7
- 238000005086 pumping Methods 0.000 claims description 5
- 210000002421 cell wall Anatomy 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 10
- 239000007921 spray Substances 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 8
- 230000009471 action Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 238000000926 separation method Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a welding workshop flue gas treatment system, wherein a flue gas hood is respectively communicated with a flue gas exhaust pipe, the flue gas exhaust pipe is communicated with the bottom in a flue gas treatment tower through a negative pressure fan A, the top of the flue gas treatment tower is provided with an air outlet pipe through a fan B, the air outlet pipe is respectively communicated with an air blowing pipe and an exhaust pipe through a three-way pipe A, valves are respectively arranged at the connection parts of the air blowing pipe and the exhaust pipe and the three-way pipe A, the air blowing pipe is respectively communicated with air blowing ports of welding stations in a welding workshop, the exhaust pipe is exhausted to the outside atmosphere, and one side of the bottom of the flue gas treatment tower. According to the structure, the welding workshop flue gas treatment system can realize the welding workshop flue gas treatment, can realize the air reutilization, and is convenient for the collection of slag materials in the flue gas.
Description
Technical Field
The invention relates to the technical field of welding workshop environment treatment, in particular to a welding workshop flue gas treatment system.
Background
Both the transmission tower and the signal tower are generally angle steel towers. The angle steel tower has high strength and relatively low construction cost, can effectively reduce the acting force of wind power on the angle steel tower, and is very commonly applied to the fields of power transmission and communication. In the production process of the angle steel tower, the number of steel components at the position of the tower angle is very large, and the steel components are criss-cross with each other, so that the structure is complex. The steel members are fixedly connected with each other, and in order to ensure the connection strength of the tower corners, the steel members are directly fixed by welding. Therefore, a large number of welding stations are arranged in a welding workshop, and a large amount of smoke is generated during welding, so that the air quality of the welding workshop is poor, and the influence on the body health of a welding operator is great; in addition, a large amount of heat is generated during welding, so that the temperature close to the welding position is high, and the temperature is relatively hot during hot days; in cold days, the temperature of the position far away from the welding position is relatively cold, and the temperature of the position close to the welding position is warmer due to the heat of welding.
Disclosure of Invention
The invention aims to: the welding workshop flue gas treatment system overcomes the defects of the prior art, can realize the flue gas treatment of the welding workshop, can realize the reutilization of air, and is convenient for collecting slag materials in the flue gas; the flue gas can be further cleaned and cooled through the spraying device, so that the waste gas can meet the emission requirement; the filtering effect of the smoke is ensured through the action of the filtering plate and the flexible filtering cloth; the spraying device is supplied with water through the overflow tank, so that the cleanliness of the spray water is ensured, and the cleaning effect of the spray water is further ensured; the connection and the disconnection of the closed inserting plate and the auxiliary inserting plate are controlled by the connecting device, so that the slag discharging operation of the slag discharging groove is facilitated; by the action of the baffle, spraying water of the spraying device is prevented from directly dropping into the overflow tank, so that the water in the overflow tank is ensured to be obtained by water overflow of the flue gas washing area, and the relative circulating balance state of the flue gas washing area, the overflow tank and the amount of water converted by spraying is ensured; the dropping speed of the spraying liquid sprayed by the spraying device is reduced and slowed down through the action of the dropping plate; thereby further guaranteeing the spraying and cleaning effect and the cooling effect of the spraying liquid on the air after water washing.
The technical scheme adopted by the invention is as follows:
welding shop flue gas processing system, including locating the flue gas cover at each welding station top in welding shop, the flue gas cover communicates with the flue gas exhaust tube respectively, the flue gas exhaust tube passes through negative-pressure air fan A and communicates with the bottom in the flue gas treatment tower, the top of flue gas treatment tower is equipped with the outlet duct through fan B intercommunication, the outlet duct communicates with gas blow pipe and blast pipe respectively through three-way pipe A, gas blow pipe and blast pipe are equipped with the valve respectively with three-way pipe A junction, the gas blow pipe communicates with the mouth of blowing of each welding station in welding shop respectively, the blast pipe is discharged to external atmosphere, bottom one side intercommunication of flue gas treatment tower is equipped with the groove of slagging tap.
In a further improved scheme of the invention, the bottom of the slag discharging groove is lower than the bottom of the flue gas treatment tower, the bottom of the tower in the flue gas treatment tower is downwards inclined along the direction facing the slag discharging groove and extends to the bottom of the slag discharging groove to be communicated, a closed inserting plate is arranged in the tower wall of the flue gas treatment tower facing one side of the slag discharging groove and in the height range of the groove wall of the slag discharging groove, the closed inserting plate reciprocates between the flue gas treatment tower and the slag notch through a hydraulic piston cylinder, the hydraulic piston cylinder is positioned at one side of the slag notch back to the flue gas treatment tower, the end part of a piston rod of the hydraulic piston cylinder is fixedly connected with an auxiliary inserting plate matched with the closed inserting plate, the side wall of the auxiliary insertion plate facing the closed insertion plate is fixedly connected with the corresponding side wall of the closed insertion plate through an insertion plate connecting device, and the connecting device controls the connection and the separation of the closed insertion plate and the auxiliary insertion plate.
According to a further improvement scheme, horizontal cross bars of a closed inserting plate are respectively arranged on the side walls, facing and facing away from a slag discharging groove, of the flue gas treatment tower, a separating vertical plate is arranged on the side wall, facing and facing away from the slag discharging groove, of the flue gas treatment tower, the bottom of the separating vertical plate is fixedly connected with the side wall through a connecting transverse plate in a sealing manner, the two side walls of the separating vertical plate are fixedly connected with the corresponding side walls of the flue gas treatment tower in a sealing manner, an overflow groove is formed between the separating vertical plate and the side wall and between the separating vertical plate and the adjacent side wall, a flue gas washing area is formed at the lower part of the flue gas treatment tower and outside the separating vertical plate, a spraying device is further arranged at the top of the flue gas treatment tower, a liquid inlet pipe of the spraying device is communicated with the bottom of the overflow groove through a liquid pump A, and a gas outlet end of a flue gas exhaust pipe is connected, And extends into the flue gas washing area.
According to a further improved scheme of the invention, a filter plate and flexible filter cloth are fixedly arranged in the flue gas washing area above the gas outlet end of the flue gas exhaust pipe from bottom to top in sequence, and the flexible filter cloth is fixedly connected to the corresponding position of the top of the partition vertical plate.
According to a further improvement scheme of the invention, the filter plate sequentially comprises a coarse filter plate, a middle filter plate and a fine filter plate from bottom to top, the coarse filter plate is provided with one layer, the middle filter plate is provided with a plurality of layers, and the fine filter plate is provided with one layer.
According to a further improvement scheme of the invention, the coarse filter plate is a curved plate, the surface of the curved plate is respectively provided with bulges and depressions which are distributed at intervals, and the tops of the bulges are uniformly distributed with a plurality of filter holes.
In a further development of the invention, the adjacent projections and recesses are connected in a smooth transition.
According to a further improved scheme of the invention, the middle filter plate is a wire mesh plate, the fine filter plate is a mesh plate, and the diameter of meshes B of the mesh plate is smaller than that of meshes A of the wire mesh plate.
According to a further improvement of the invention, the flexible filter cloth is a gauze.
The invention has the further improvement scheme that a distance is arranged between the bottom of the side wall of the flue gas treatment tower facing one side of the slag discharging groove and the corresponding position of the bottom of the tower, and the bottom of the side wall of the flue gas treatment tower facing one side of the slag discharging groove is lower than the closed inserting plate.
According to a further improved scheme of the invention, the slag discharging groove is communicated with the flue gas washing area through an extraction pump B, and a pipe orifice A of an extraction pipe of the extraction pump B is positioned at the bottom of the side wall of the slag discharging groove, which corresponds to one side of the flue gas treatment tower facing the slag discharging groove; and the pipe orifice B of the liquid discharge pipe of the liquid pump B is positioned in the range between the closed inserting plate and the filter plate in the flue gas washing area.
In a further improved scheme of the invention, a vent pipe is arranged in the side wall of the flue gas treatment tower facing one side of the slag notch, the wall of the flue gas treatment tower facing one side of the slag notch is provided with matched jacks corresponding to the closed insertion plate, the vent pipe comprises a vent pipe unit A and a vent pipe unit B, a lower pipe orifice A of the vent pipe unit A extends out from the side wall at the lower position of the closed insertion plate, an upper pipe orifice A of the vent pipe unit A is communicated with the jacks from the bottom of the jacks, an upper pipe orifice B of the vent pipe unit B extends out from the side wall at the upper position of the slag notch, a lower pipe orifice B of the vent pipe unit B is communicated with the jacks from the top of the jacks, the closed insertion plate is provided with a vent pipe unit C corresponding to the vent pipe, and when the closed insertion plate is completely inserted into the flue gas treatment, the vent pipe is communicated.
According to a further improvement scheme of the invention, an air outlet nozzle is fixedly communicated with an air outlet end of the flue gas exhaust pipe positioned in the flue gas washing area, the air outlet nozzle is positioned above the closed inserting plate, the air outlet direction of the air outlet nozzle is upward, the air outlet nozzle is a spherical surface, and a plurality of air outlet holes are uniformly distributed on the surface of the spherical surface.
According to a further improvement scheme of the invention, a baffle plate A is fixedly connected to the inner side wall of the flue gas treatment tower, which is connected to the bottom of the partition vertical plate and located above the overflow tank, two ends of the baffle plate A are respectively and fixedly connected to the side wall of the flue gas treatment tower, which is connected to two sides of the partition vertical plate, in a sealing manner, the baffle plate A is inclined downwards along one side facing the flue gas washing area, and the bottom end of the baffle plate A is located in the range of the flue gas washing area.
According to a further improved scheme of the invention, the baffle A is provided with a plurality of rows of vent holes, the top surface of the baffle A is respectively provided with a baffle B above each row of vent holes, the baffle B inclines downwards along one side facing the flue gas washing area, the bottom edge of the baffle B is respectively positioned on one side facing the flue gas washing area corresponding to the vent holes, and the slope of the baffle B is smaller than that of the baffle A.
According to a further improved scheme of the invention, a plurality of layers of drip plates are arranged between the spraying device and the partition vertical plate in the flue gas treatment tower.
According to a further improvement scheme of the invention, the height difference between the spraying device and the topmost drip plate is equal to the height difference between two adjacent drip plates.
In a further improved scheme of the invention, a slot matched with the closed inserting plate is formed between the bottom of the partition vertical plate and a horizontal cross arm arranged on a side plate corresponding to the smoke processing tower.
The invention has the further improvement scheme that the liquid inlet pipe is pre-buried and fixed in the side wall of the flue gas treatment tower and is also communicated with an external water inlet device through a three-way pipe B.
According to a further improvement scheme of the invention, when the hydraulic piston rod extends out of the hydraulic piston cylinder completely, the auxiliary insertion plate seals the notch of the slag discharging groove, and the sealed insertion plate is inserted into the flue gas treatment tower completely through the auxiliary insertion plate; when the hydraulic piston rod completely retreats the hydraulic piston cylinder, the auxiliary insertion plate is completely separated from the slag discharging groove, and when the closed insertion plate is fixed with the auxiliary insertion plate through the connecting device, the notch of the slag discharging groove is closed by the closed insertion plate.
According to a further improved scheme of the invention, the air blowing pipe is connected and communicated with the air blowing port through an air blowing manifold, and a heating device is arranged on the air blowing manifold and is used for heating air passing through the air blowing manifold.
The invention has the beneficial effects that:
the welding workshop flue gas treatment system can realize the welding workshop flue gas treatment, can realize the air reutilization, and is convenient for collecting slag in the flue gas.
Secondly, the welding workshop flue gas treatment system can further clean the flue gas and cool the flue gas at the same time through the action of the spraying device, so that the waste gas can meet the emission requirement.
Thirdly, the welding workshop flue gas treatment system ensures the filtering effect of the flue gas through the action of the filtering plate and the flexible filtering cloth.
Fourthly, the welding workshop flue gas treatment system disclosed by the invention supplies water to the spraying device through the overflow tank, so that the cleanliness of spray water is ensured, and the cleaning effect of the spray water is further ensured.
And fifthly, the welding workshop flue gas treatment system controls the connection and the disconnection of the closed inserting plate and the auxiliary inserting plate through the connecting device, so that the slag discharging operation of a slag discharging groove is facilitated.
Sixth, the welding shop flue gas treatment system of the invention, through the function of the back plate, prevent the spray water of the spray set from dropping into the overflow trough directly, thus guarantee the water in the overflow trough is all that the water overflow of the washing area of flue gas gets, and then guarantee the washing area of flue gas, overflow trough and spray the water volume of turning back and reach the relative circulating equilibrium state.
Seventh, the welding shop flue gas treatment system of the invention, through the function of the drip plate, has reduced the dripping speed of the spray solution sprayed out of the spray set; thereby further guaranteeing the spraying and cleaning effect and the cooling effect of the spraying liquid on the air after water washing.
Description of the drawings:
FIG. 1 is a schematic top view of the present invention.
FIG. 2 is a front cross-sectional enlarged schematic view of a flue gas treatment tower of the present invention.
Fig. 3 is a front cross-sectional enlarged view of the buffer substrate.
Embodiment mode (b):
with reference to fig. 1 to 3, the welding shop flue gas treatment system includes a flue gas hood 1 disposed at the top of each welding station in the welding shop, the flue gas hood 1 is respectively communicated with a flue gas exhaust pipe 2, the flue gas exhaust pipe 2 is communicated with the bottom of the inside of a flue gas treatment tower 3 through a negative pressure fan a, the top of the flue gas treatment tower 3 is communicated with an air outlet pipe 4 through a fan B, the air outlet pipe 4 is respectively communicated with an air blowing pipe 5 and an exhaust pipe 6 through a three-way pipe a, valves are respectively disposed at the joints of the air blowing pipe 5 and the exhaust pipe 6 with the three-way pipe a, the air blowing pipe 5 is respectively communicated with an air blowing port 8 of each welding station in the welding shop, the exhaust pipe 6 is exhausted to the outside atmosphere, and a slag discharge groove 7 is disposed on one side of.
The bottom of the slag notch 7 is lower than the bottom of the flue gas treatment tower 3, the bottom 21 of the flue gas treatment tower 3 is inclined downwards along the direction facing the slag notch 7 and extends to the bottom of the slag notch 7 to be communicated, a closed inserting plate 22 is arranged in the tower wall of the flue gas treatment tower 3 facing one side of the slag notch 7 and in the height range of the groove wall of the slag notch 7, the closed inserting plate 22 reciprocates between the flue gas treatment tower 3 and the slag discharging groove 7 through a hydraulic piston cylinder 23, the hydraulic piston cylinder 23 is positioned at one side of the slag discharging groove 7 back to the flue gas treatment tower 3, the end part of a piston rod of the hydraulic piston cylinder 23 is fixedly connected with an auxiliary inserting plate 24 matched with the closed inserting plate 22, the side wall of the auxiliary insertion plate 24 facing the closed insertion plate 22 is fixedly connected with the corresponding side wall of the closed insertion plate 22 through an insertion plate connecting device, and the connecting device controls the connection and the separation of the closed insertion plate 22 and the auxiliary insertion plate 24.
The flue gas treatment tower is characterized in that horizontal cross bars for sealing the inserting plates 22 are arranged on the side walls facing and backing the slag discharging groove 7 in the flue gas treatment tower 3, the separation vertical plates 11 are arranged on the side walls backing the slag discharging groove 7 in the flue gas treatment tower 3 and above the horizontal cross bars, the bottoms of the separation vertical plates 11 are fixedly connected with the side walls in a sealing manner through connecting transverse plates, the two side walls of the separation vertical plates 11 are fixedly connected with the corresponding side walls of the flue gas treatment tower 3 in a sealing manner, overflow grooves 13 are formed between the separation vertical plates 11 and the side walls in a sealing manner, flue gas washing areas 12 are formed at the outer sides of the separation vertical plates 11 at the lower parts in the flue gas treatment tower 3, a spraying device 14 is further arranged at the top in the flue gas treatment tower 3, a liquid inlet pipe 15 of the spraying device 14 is communicated with the bottom in the overflow grooves 13 through a liquid pumping pump A16, and the gas outlet end of the flue gas pumping pipe 2 is connected with the side, And extends into the flue gas washing section 12.
And a filtering plate and a flexible filtering cloth 33 are sequentially and fixedly arranged in the flue gas washing area 12 above the gas outlet end of the flue gas pumping pipe 2 from bottom to top, and the flexible filtering cloth 33 is fixedly connected to the corresponding position at the top of the partition vertical plate 11.
The filter plate comprises a coarse filter plate 30, a middle filter plate 31 and a fine filter plate 32 from bottom to top in sequence, wherein the coarse filter plate 30 is provided with one layer, the middle filter plate 31 is provided with multiple layers, and the fine filter plate 32 is provided with one layer.
The coarse filter plate 30 is a curved plate, the surface of the curved plate is respectively provided with protrusions 36 and depressions 35 which are distributed at intervals, and the top of the protrusions 36 is uniformly distributed with a plurality of filter holes 37.
The adjacent protrusions 36 and the depressions 35 are smoothly connected in transition.
The middle filter plate 31 is a wire mesh plate, the fine filter plate 32 is a mesh plate, and the diameter of meshes B of the mesh plate is smaller than that of meshes A of the wire mesh plate.
The flexible filter cloth 33 is a gauze.
The bottom of the side wall of the flue gas treatment tower 3 facing one side of the slag notch 7 is provided with a distance with the corresponding position of the tower bottom 21, and the bottom of the side wall of the flue gas treatment tower 33 facing one side of the slag notch 7 is lower than the closed inserting plate 22.
The slag discharging groove 7 is communicated with the flue gas washing area 12 through an extraction pump B29, and a nozzle A27 of an extraction pipe of an extraction pump B29 is positioned at the bottom of the side wall of the slag discharging groove 7 corresponding to one side of the flue gas treatment tower 3 facing the slag discharging groove 7; the nozzle B28 of the liquid discharge pipe of the liquid pump B29 is positioned in the range between the closed inserting plate 22 and the filter plate in the flue gas washing area 12.
The flue gas treatment tower 3 is equipped with breather pipe 26 in the lateral wall towards slag notch 7 one side, and the flue gas treatment tower 3 is equipped with the jack that matches towards the cell wall of slag notch 7 one side corresponding to closed picture peg 22, breather pipe 26 includes breather pipe unit A and breather pipe unit B, breather pipe unit A's lower nozzle A stretches out from the lateral wall of closed picture peg 22 lower position department, breather pipe unit A's upper nozzle A communicates with the jack from the jack bottom, breather pipe unit B's upper nozzle B outwards stretches out from the lateral wall of slag notch 7 upper position department, breather pipe unit B's lower nozzle B communicates with the jack from the jack top, closed picture peg 22 is equipped with breather pipe unit C corresponding to breather pipe 26, when closed picture peg 22 inserts flue gas treatment tower 3 completely, breather pipe unit C communicates with breather pipe unit A and breather pipe unit B respectively, communicating the vent tube 26.
The end intercommunication of giving vent to anger that flue gas exhaust tube 2 is located flue gas washing district 12 is fixed with air outlet nozzle 20, air outlet nozzle 20 is located the top of sealing picture peg 22, air outlet nozzle 20's the direction of giving vent to anger makes progress, and air outlet nozzle 20 is the sphere, spherical surface evenly distributed has a plurality of ventholes.
A baffle A17 is fixedly connected to the upper part of the overflow tank 13 in the flue gas treatment tower 3 corresponding to the side wall connected to the bottom of the partition vertical plate 11, two ends of the baffle A17 are respectively fixedly connected to the side wall of the flue gas treatment tower 3 connected to two sides of the partition vertical plate 11 in a sealing manner, the baffle A17 is inclined downwards along one side facing the flue gas washing area 12, and the bottom end of the baffle A17 is located in the range of the flue gas washing area 12.
The baffle A17 is equipped with multirow air vent 18, the top surface of baffle A17, be located each row of air vent 18 top and be equipped with baffle B19 respectively, baffle B19 is along the one side downward sloping that faces flue gas washing district 12 to the bottom border of baffle B19 is located the one side that corresponds air vent 18 and faces flue gas washing district 12 respectively, the slope of baffle B19 is less than the slope of baffle A17.
And a plurality of layers of drip plates 34 are arranged in the flue gas treatment tower 3 and between the spraying device 14 and the partition vertical plate 11.
The height difference between the spray device 14 and the topmost drip plate 34 is equal to the height difference between two adjacent drip plates 34.
A slot 25 matched with the closed inserting plate 22 is formed between the bottom of the partition vertical plate 11 and a horizontal cross arm arranged on the side plate corresponding to the smoke processing tower 3.
The liquid inlet pipe 15 is pre-buried and fixed in the side wall of the flue gas treatment tower 3, and the liquid inlet pipe 15 is also communicated with an external water inlet device through a three-way pipe B.
When the hydraulic piston rod extends out of the hydraulic piston cylinder 23 completely, the auxiliary insertion plate 24 closes the notch of the slag discharging groove 7, and the closed insertion plate 22 is inserted into the smoke treatment tower 3 completely through the auxiliary insertion plate 24; when the hydraulic piston rod is completely withdrawn into the hydraulic piston cylinder 23, the auxiliary insertion plate 24 is completely separated from the slag notch 7, and when the closed insertion plate 22 is fixed with the auxiliary insertion plate 24 through a connecting device, the notch of the slag notch 7 is closed by the closed insertion plate 22.
The blowing pipe 5 is connected and communicated with the blowing port 8 through a blowing manifold 9, a heating device 10 is arranged on the blowing manifold 9, and the heating device 10 heats air passing through the blowing manifold 9.
When the plug board is used, the closed plug board 22 is fixed with the auxiliary plug board 24 through a connecting device, then the hydraulic piston rod of the hydraulic piston cylinder 23 together with the auxiliary plug board 24 and the closed plug board 22 returns to the position of the maximum stroke in the hydraulic piston cylinder 23, and at the moment, the slag discharging groove 7 is closed by the closed plug board 22; then the exhaust pipe 6 is communicated with the air outlet pipe 4 of the flue gas treatment tower 3, and then water externally connected with a water inlet device is communicated and sprayed into the flue gas treatment tower 3 from the spraying device 14 through a liquid drawing pump A16; when the liquid level in the flue gas washing area 12 of the flue gas treatment tower 3 reaches the top of the partition vertical plate 11, the water in the flue gas washing area 12 starts to overflow into the overflow tank 13, and when the liquid level in the overflow tank 13 reaches half the height of the overflow tank 13; then the external water inlet device is closed by the liquid pump A16, and the spraying device 14 is communicated with the water in the overflow tank 13 through the liquid inlet pipe 15 for circular spraying; then, the welding smoke generated by the welding station at the corresponding position of the smoke hood 1 is absorbed by the negative pressure fan A, and then the smoke is introduced into the smoke treatment tower 3, and the smoke is uniformly discharged through the gas outlet nozzle 20; the flue gas in the flue gas washing area 12 is subjected to multi-layer filtration under the action of a coarse filter plate 30, a middle filter plate 31, a fine filter plate 32 and a flexible filter cloth 33 in sequence, so that solid particles in the flue gas are blocked, and clean air leaves the flue gas washing area 12 and continues to go upwards; and is sprayed and cooled by a spraying device 14, thereby removing the flue gas treatment tower 3; after being blocked, the solid particles in the flue gas gradually precipitate to the tower bottom 21 due to the action of gravity and continuously fall to the bottom in the slag discharging groove 7 along the tower bottom 21; when more slag materials are accumulated at the bottom in the slag discharging groove 7, a hydraulic piston rod of the hydraulic piston cylinder 23, the auxiliary inserting plate 24 and the closed inserting plate 22 extend out to the maximum stroke position, at the moment, the closed inserting plate 22 divides the interior of the flue gas treatment tower 3 into an upper part and a lower part, the washing treatment of the flue gas can still be normally carried out above the closed inserting plate 22, and the area, positioned below the closed inserting plate 22, in the flue gas treatment tower 3 is communicated with the slag discharging groove 7 in a sealing way; finally, the closed inserting plate 22 is separated from the auxiliary inserting plate 24 through a connecting device, and the auxiliary inserting plate 24 is driven to return to the maximum stroke position through a hydraulic piston rod of a hydraulic piston cylinder 23, so that the slag discharging of the slag discharging groove 7 is facilitated; when slag is discharged, water in the slag discharging groove 7 needs to be pumped out firstly, the water on the inner top surface of the slag discharging groove 7 is pumped to the flue gas washing area 12 above the closed insertion plate 22 in the flue gas treatment tower 3 through the action of the liquid pumping pump B29, the area below the closed insertion plate 22 in the flue gas treatment tower 3 is communicated with the outside atmosphere through the vent pipe 26, and therefore the water in the treatment tower 3 communicated with the slag discharging groove 7 can be pumped out smoothly; after the water in the slag discharging groove 7 is pumped out, the slag in the slag discharging groove 7 is directly dug out. In the use process, after the air blowing pipe 5 is communicated with the air outlet pipe 4 of the flue gas treatment tower 3, clean air treated by the flue gas treatment tower 3 can be blown to a welding station of a welding workshop, so that the air quality of the welding workshop is ensured; when the temperature of the welding shop is low, the air passing through the blowing manifold 9 can also be heated by the heating device 10, and then warm air is blown out.
Claims (10)
1. Welding shop flue gas processing system, its characterized in that: including locating flue gas hood (1) at each welding station top in welding shop, flue gas hood (1) communicates with flue gas exhaust tube (2) respectively, flue gas exhaust tube (2) are through the bottom intercommunication in negative-pressure air fan A and the flue gas treatment tower (3), the top of flue gas treatment tower (3) is equipped with outlet duct (4) through fan B intercommunication, outlet duct (4) communicate respectively through three-way pipe A and gas blow pipe (5) and blast pipe (6), gas blow pipe (5) and blast pipe (6) are equipped with the valve respectively with three-way pipe A junction, gas blow pipe (5) communicate with blowing mouth (8) of each welding station in welding shop respectively, blast pipe (6) are discharged to the external atmosphere, bottom one side intercommunication of flue gas treatment tower (3) is equipped with slag notch (7).
2. The welding shop flue gas treatment system according to claim 1, characterized in that: the tank bottom of slagging tap groove (7) is less than the bottom of the tower in flue gas treatment tower (3), the tank bottom intercommunication that tank (7) and extend to slagging tap groove (7) is followed in the tower bottom (21) in flue gas treatment tower (3) along the orientation downward sloping towards slagging tap groove (7), flue gas treatment tower (3) is equipped with closed picture peg (22) towards the tower wall of slagging tap groove (7) one side, the cell wall height range that is located slagging tap groove (7), closed picture peg (22) are through hydraulic piston cylinder (23) at flue gas treatment tower (3) and reciprocating motion between slagging tap groove (7), hydraulic piston cylinder (23) are located slagging tap groove (7) one side of treating tower (3) to the flue gas dorsad, the piston rod tip fixedly connected with of hydraulic piston cylinder (23) seals supplementary picture peg (24) that picture peg (22) match, supplementary picture peg (24) are passed through picture peg connecting device towards the lateral wall that corresponds of the lateral wall of closed picture peg (22) and are connected, the connecting device controls the connection and the disconnection of the closed inserting plate (22) and the auxiliary inserting plate (24).
3. The welding shop flue gas treatment system according to claim 2, characterized in that: the flue gas treatment tower is characterized in that horizontal cross bars for sealing inserting plates (22) are respectively arranged in the flue gas treatment tower (3) and correspondingly on the side walls facing and backing to the slag discharging groove (7), partition vertical plates (11) are arranged on the side walls of the flue gas treatment tower (3) and backing to one side of the slag discharging groove (7) and above the horizontal cross bars, the bottoms of the partition vertical plates (11) are fixedly connected with the side walls in a sealing manner through connecting transverse plates, the two side walls of the partition vertical plates (11) are fixedly connected with the corresponding side walls of the flue gas treatment tower (3) in a sealing manner, overflow tanks (13) are formed between the partition vertical plates (11) and the side walls in the sealing manner and the adjacent side walls, flue gas washing areas (12) are formed at the lower parts in the flue gas treatment tower (3) and on the outer sides of the partition vertical plates (11), a spraying device (14) is further arranged at the top in the flue gas treatment tower (3), and liquid inlet pipes (15) of the spraying device (14) are, the gas outlet end of the flue gas exhaust pipe (2) is connected with the side wall of the flue gas treatment tower (3) within the range of the flue gas washing area (12) and extends into the flue gas washing area (12).
4. The welding shop flue gas treatment system according to claim 3, characterized in that: and a filtering plate and a flexible filtering cloth (33) are sequentially and fixedly arranged in the flue gas washing area (12) above the gas outlet end of the flue gas pumping pipe (2) from bottom to top, and the flexible filtering cloth (33) is fixedly connected to the corresponding position at the top of the partition vertical plate (11).
5. The welding shop flue gas treatment system according to claim 3, characterized in that: the gas outlet end of the flue gas extraction pipe (2) in the flue gas washing area (12) is communicated with a gas outlet nozzle (20), the gas outlet nozzle (20) is located above the closed insertion plate (22), the gas outlet direction of the gas outlet nozzle (20) is upward, the gas outlet nozzle (20) is a spherical surface, and a plurality of gas outlet holes are uniformly distributed on the spherical surface.
6. The welding shop flue gas treatment system according to claim 3, characterized in that: in the flue gas treatment tower (3), on the lateral wall that is connected corresponding to partition riser (11) bottom, be located the top fixedly connected with baffle A (17) of overflow groove (13), the both ends of baffle A (17) respectively with connect in the flue gas treatment tower (3) lateral wall sealing fixed connection who separates riser (11) both sides, baffle A (17) along the one side downward sloping towards flue gas washing district (12), and the bottom of baffle A (17) is located the within range of flue gas washing district (12).
7. The welding shop flue gas treatment system according to claim 3, characterized in that: and a plurality of layers of drip plates (34) are arranged in the flue gas treatment tower (3) and between the spraying device (14) and the partition vertical plate (11).
8. The welding shop flue gas treatment system according to claim 3, characterized in that: and a slot (25) matched with the closed inserting plate (22) is formed between the bottom of the partition vertical plate (11) and a horizontal cross arm arranged on the side plate corresponding to the smoke processing tower (3).
9. The welding shop flue gas treatment system according to claim 3, characterized in that: the liquid inlet pipe (15) is pre-buried and fixed in the side wall of the flue gas treatment tower (3), and the liquid inlet pipe (15) is also communicated with an external water inlet device through a three-way pipe B.
10. The welding shop flue gas treatment system according to claim 2, characterized in that: when the hydraulic piston rod extends out of the hydraulic piston cylinder (23) completely, the auxiliary insertion plate (24) closes the notch of the slag discharging groove (7), and the closed insertion plate (22) is inserted into the smoke treatment tower (3) completely through the auxiliary insertion plate (24); when the hydraulic piston rod is completely withdrawn into the hydraulic piston cylinder (23), the auxiliary insertion plate (24) is completely separated from the slag discharging groove (7), and when the closed insertion plate (22) is fixed with the auxiliary insertion plate (24) through a connecting device, the notch of the slag discharging groove (7) is closed by the closed insertion plate (22).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011513888.0A CN112393355A (en) | 2020-12-21 | 2020-12-21 | Welding shop flue gas processing system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011513888.0A CN112393355A (en) | 2020-12-21 | 2020-12-21 | Welding shop flue gas processing system |
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| CN112393355A true CN112393355A (en) | 2021-02-23 |
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| CN202011513888.0A Pending CN112393355A (en) | 2020-12-21 | 2020-12-21 | Welding shop flue gas processing system |
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| CN211564922U (en) * | 2020-08-04 | 2020-09-25 | 威尔登环保设备（长沙）有限公司 | Dust removal system |
| CN213901341U (en) * | 2020-12-21 | 2021-08-06 | 江苏翔宇电力装备制造有限公司 | Welding shop flue gas processing system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2360143Y (en) * | 1998-01-09 | 2000-01-26 | 张淑英 | Wetting dust removing desulphurization Unit |
| CN104083980A (en) * | 2014-07-17 | 2014-10-08 | 芜湖长启炉业有限公司 | One-spraying two-net three-slope type smoke dust cleaning device |
| CN206959254U (en) * | 2017-07-28 | 2018-02-02 | 安徽祥源科技股份有限公司 | Welding shop supply air system |
| CN108479348A (en) * | 2018-04-19 | 2018-09-04 | 合肥职业技术学院 | A kind of novel environment friendly emission-control equipment |
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