CN114963395B - Stable dust removal ventilation system for vehicle welding workshop - Google Patents

Stable dust removal ventilation system for vehicle welding workshop Download PDF

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Publication number
CN114963395B
CN114963395B CN202210691721.6A CN202210691721A CN114963395B CN 114963395 B CN114963395 B CN 114963395B CN 202210691721 A CN202210691721 A CN 202210691721A CN 114963395 B CN114963395 B CN 114963395B
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China
Prior art keywords
automatic valve
flue
dust
sponge
fixed
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CN202210691721.6A
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Chinese (zh)
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CN114963395A (en
Inventor
陈梅燕
许洪珊
吴传都
龚金金
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Chery and Wanda Guizhou Bus Co Ltd
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Chery and Wanda Guizhou Bus Co Ltd
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Priority to CN202210691721.6A priority Critical patent/CN114963395B/en
Publication of CN114963395A publication Critical patent/CN114963395A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/003—Cleaning involving contact with foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
    • F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F26B5/14—Drying solid materials or objects by processes not involving the application of heat by applying pressure, e.g. wringing; by brushing; by wiping
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cleaning In General (AREA)

Abstract

The invention discloses a stable dust removal ventilation system for a vehicle welding workshop, which comprises a dust hood, a flue, a cloth bag dust remover and a chimney, wherein the dust hood is fixed right above a welding station, the flue is used for connecting the dust hood with the inlet end of the cloth bag dust remover, and the outlet end of the cloth bag dust remover is connected with the chimney through an axial flow fan. According to the dust collecting cover disclosed by the invention, welding smoke and dust in a welding workshop are sucked and then discharged into the bag-type dust remover through the flue to remove dust, and finally clean air is discharged, so that the health of staff is protected, and the pollution to the environment is avoided.

Description

Stable dust removal ventilation system for vehicle welding workshop
Technical Field
The invention relates to a stable dust removal ventilation system for a vehicle welding workshop, and belongs to the technical field of automobile processing.
Background
The greatest pollution generated in the welding workshop of the passenger car is welding smoke and dust, and improper treatment of the welding smoke and dust can not only influence the health of staff, but also cause pollution to the environment.
Except welding fume and dust, granular welding slag can be generated in the welding process, the welding slag splashes everywhere in the welding process, and after the welding is finished, the welding slag needs to be cleaned by staff, so that the workload of the staff is increased.
In addition, the temperature of the welding fume exhaust is higher and is 60-80 ℃, and the direct exhaust can cause adverse effect on the atmospheric environment.
Disclosure of Invention
The invention aims to solve the technical problems that: the stable dust removal ventilation system for the vehicle welding workshop is provided, so that the problems that the body health of staff can be influenced and the environment can be polluted due to improper treatment of welding smoke and dust are solved.
The technical scheme adopted by the invention is as follows: the utility model provides a stable dust removal ventilation system in vehicle welding workshop, includes dust cage, flue, sack cleaner and chimney, the dust cage is fixed directly over the welding station, the flue will the dust cage with the entrance point of sack cleaner is connected, the exit end of sack cleaner passes through axial fan and is connected with the chimney.
Preferably, the device further comprises a drying mechanism, wherein the drying mechanism comprises a sponge arranged inside the flue.
Preferably, a curved hole is formed in the sponge.
Preferably, the sponge is cuboid, and the cross section of the place where the flue is connected with the sponge is rectangular; the upper end and the lower end of the sponge are respectively fixed with a rectangular connecting block, and the connecting blocks penetrate through the upper side wall and the lower side wall of the flue and are in sliding sealing connection with the flue; the connecting block can move up and down under the drive of the first driving mechanism.
Preferably, the first driving mechanism is a first cylinder, a first telescopic arm is arranged on the first cylinder, and the sponge is fixed with the first telescopic arm.
Preferably, the cleaning device further comprises a cleaning mechanism, wherein the cleaning mechanism comprises a fixed plate fixed on the flue and positioned at one side of the connecting block, a fixed box is fixed at the other side of the connecting block, one side of the fixed box, which is close to the connecting block, is opened, a pushing block is connected in a sliding and sealing manner in the fixed box, a first automatic valve is arranged on the pushing block, and the pushing block slides in a left-right reciprocating manner under the driving of a second driving mechanism; the side wall of the fixed box, which is far away from the connecting block, is provided with a one-way inlet valve and a one-way outlet valve, the one-way outlet valve is connected with an outlet pipe, and the other end of the outlet pipe extends to one end of the fixed box, which is close to the connecting block.
Preferably, the one-way inlet valve is respectively connected with a cleaning box, a water tank and air through an inlet pipe, a second automatic valve is arranged between the cleaning box and the inlet pipe, a third automatic valve is arranged between the water tank and the inlet pipe, and a fourth automatic valve is arranged between the inlet pipe and the outside.
Preferably, a contact switch is installed at a position, close to one end of the connecting block, on the flue, the contact of the contact switch is hemispherical and vertically downward, the contact switch can be pressed in the horizontal sliding process of the pushing block, and the contact switch is electrically connected with the first automatic valve, the second automatic valve, the third automatic valve and the fourth automatic valve through a controller.
Preferably, the number of the bag-type dust collectors is more than 2 and the bag-type dust collectors are connected in series.
Preferably, an automatic valve is arranged at one end of the dust hood, which is connected with the flue; still include the control box, control box internally mounted has the controller, the automatic valve with controller electric connection, the control box is inside to be provided with automatic valve switch and axial fan switch.
Preferably, the automatic valve is an automatic flap valve.
Preferably, the bag-type dust collector is installed on the ground through a mounting frame.
Preferably, the number of the dust hoods is set to be more than 2 and are connected in parallel with each other.
Preferably, a smoke sensor is arranged at the lower end of the dust hood, and the smoke sensor is electrically connected with the automatic valve through the controller.
Preferably, a temperature sensor is arranged at the lower end of the dust collection cover, and the temperature sensor is electrically connected with the automatic valve through the controller.
Preferably, the gas-liquid separator further comprises a condenser, wherein the gas outlet end of the bag-type dust remover is connected with a medium layer of the condenser, and the outlet end of the medium layer of the condenser is connected with the chimney; the condensate layer of the condenser is connected with circulating water.
Preferably, the dust collecting cover also comprises an electromagnet fixed at the lower end of the dust collecting cover.
The invention has the beneficial effects that:
1. Compared with the prior art, the dust hood sucks welding fume and dust in a welding workshop, then discharges the welding fume and dust into the bag-type dust remover through the flue to remove dust, finally discharges clean air, protects the health of staff and avoids polluting the environment.
2. Compared with the prior art, the invention has the advantages that granular welding slag splashed everywhere in the process of the adsorption welding of the electromagnet is utilized, the electromagnet is powered off after the welding is finished, the welding slag automatically falls, and workers can intensively clean the welding slag, so that the workload of the workers is reduced.
3. Compared with the prior art, the invention cools the welding fume and then discharges the welding fume, thereby avoiding the adverse effect of direct discharge on the atmospheric environment.
4. Especially, compared with the prior art, the invention has the advantages that the sponge is arranged in the flue in front of the cloth bag dust remover, the bent holes are arranged in the sponge, and the flue gas is discharged into the cloth bag dust remover after being dried by the sponge, so that dust caused by moisture in the flue gas is prevented from being adhered to the inner side wall of the cloth bag, and the cloth bag is prevented from being wasted, thereby prolonging the service life of the invention; and the invention also provides a drying mechanism for wringing, cleaning and drying the sponge, thereby ensuring the sustainable and repeated utilization of the sponge and the drying effect of the sponge.
Drawings
FIG. 1 is a schematic overall structure of embodiment 1;
fig. 2 is a schematic overall structure of embodiment 2.
Fig. 3 is a schematic diagram of the structure of the drying mechanism of embodiment 3.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific examples.
Example 1:
The utility model provides a stable dust removal ventilation system in vehicle welding workshop, as shown in fig. 1, including dust collecting cover 1, flue 3, sack cleaner 4, chimney 6 and control box 7, dust collecting cover 1 is fixed directly over the welding station, the axis of dust collecting cover 1 is arranged along vertical direction, dust collecting cover 1 is welded by the stainless steel skin, dust collecting cover 1's appearance is round platform form, sack cleaner 4 passes through mounting bracket 41 and installs the ground in the welding workshop outside, mounting bracket 41 is the stainless steel frame, flue 3 is connected the upper end of dust collecting cover 1 and the entrance point of sack cleaner 4, the exit end of sack cleaner 4 is connected with chimney 6 through axial fan 5, chimney 6 is fixed subaerial outside the welding workshop. The flue 3 in this embodiment is a stainless steel bellows.
In the embodiment, the number of the cloth bag dust collectors 4 is set to 3 and the cloth bag dust collectors 4 are connected in series, and the dust collection effect can be optimized by setting 3 cloth bag dust collectors 4.
In the present embodiment, the number of dust hoods 1 is set to be plural and connected in parallel with each other as required.
In order to optimize the dust removal effect, one end of the dust hood 1 connected with the flue 3 in the embodiment is provided with an automatic valve 2, and the automatic valve 2 is an automatic flap valve; the embodiment also comprises a control box 7 fixed on the wall of the welding workshop, wherein a controller is arranged in the control box 7, an automatic valve switch and an axial flow fan switch are arranged in the control box, and the automatic valve switch and the axial flow fan switch are respectively and electrically connected with the automatic valve 2 and the axial flow fan 5 through the controllers.
The specific implementation process is as follows: when the welding workshop starts to work, the axial flow fan switch is pressed down, the axial flow fan 5 starts to exhaust air, all the flues 3 start to exhaust air at the moment, when parts are required to be welded, welding materials are conveyed to a workbench below the adjacent dust collection cover 1, the automatic valve switch corresponding to the dust collection cover 1 is opened, the automatic valve 2 is opened at the moment, and welding smoke and dust below the dust collection cover 1 can be sucked off by the dust collection cover 1. Welding fume and dust generated in the welding process enter a bag-type dust remover 4 through a flue 3 to be uniformly removed, and clean air is discharged from a chimney 6; after the welding work is finished, the automatic valve switch is closed, at the moment, the automatic valve 2 is closed, the corresponding dust hood 1 stops working, and meanwhile, the function of preventing smoke and dust from flowing back can be achieved. Similarly, one or more dust hoods 1 are selected to work simultaneously according to actual demands, and different dust hoods 1 can be used respectively when a plurality of people weld simultaneously, so that the dust collection work is convenient to carry out.
Example 2:
Example 2 differs from example 1 in that: as shown in fig. 2, a smoke sensor 11 is mounted at the lower end of the dust hood 1, and the smoke sensor 11 is electrically connected with the automatic valve 2 through a controller. The lower end of the dust hood 1 is also provided with a temperature sensor 12, and the temperature sensor 12 is electrically connected with the automatic valve 2 through a controller. The lower end of the dust hood 1 is fixedly provided with an electromagnet 13, the electromagnet 13 is respectively and electrically connected with a temperature sensor 12 and a smoke sensor 11 through a controller, when the smoke sensor 11 detects smoke or the temperature sensor 12 detects that the temperature is more than 40 ℃, the smoke sensor 11 or the temperature sensor 12 controls the automatic valve 2 to be opened through the controller, meanwhile, the electromagnet 13 is electrified, and the electromagnet 13 can absorb welding slag splashed in the welding process; when welding is finished, when the smoke sensor 11 no longer detects smoke or the temperature sensor 12 detects that the temperature is above 25 ℃, the smoke sensor 11 or the temperature sensor 12 controls the automatic valve 2 to be closed through the controller, meanwhile, the electromagnet 13 is powered off, and welding slag adsorbed by the electromagnet 13 automatically falls on the ground, so that centralized cleaning of the welding slag is facilitated.
As shown in fig. 2, the embodiment further comprises a condenser 8, the gas outlet end of the bag-type dust collector 4 is connected with a medium layer of the condenser 8, and the outlet end of the medium layer is connected with a chimney 6; the inlet end of the condensed liquid layer of the condenser 8 is connected with a water cooling tower 9 through a pipeline and a water pump 91, the water pump 91 is connected with the bottom of the water cooling tower 9, and the water at the outlet end of the condensed liquid layer of the condenser 8 is directly discharged to the upper part of the water cooling tower 9. The flue gas is cooled by the circulating water and then is discharged into the atmosphere, so that the environment is protected. The cooling tower 9 is arranged to realize rapid cooling of the circulating water.
Example 2 has the following advantages compared with example 1: the automatic valve 2 and the electromagnet 13 are not required to be manually switched, a worker can directly start welding, and the worker can directly walk away after finishing welding.
Example 3
Because the water-containing dust can be directly adsorbed on the cloth bag after entering the cloth bag, when more water-containing dust is adhered together, the pulse blowing of the cloth bag dust collector 4 can not blow off the water-containing dust adhered on the cloth bag, the time is long, the whole cloth bag is wasted, and however, a batch of cloth bags are replaced with high cost.
Thus, example 3 differs from example 1 in that: as shown in fig. 3, the device further comprises a drying mechanism, wherein the drying mechanism comprises a sponge 320 arranged in the flue 3, the sponge 320 is arranged along the vertical direction, a bent hole 321 arranged along the horizontal direction is arranged in the sponge 320, the purpose of the bent hole 321 is to facilitate the sponge 320 to dry welding fume, but the bent hole 321 allows dust to pass through, the sponge 320 is in a cuboid shape, and the cross section of a place where the flue 3 is connected with the sponge 320 is rectangular; the upper end and the lower end of the sponge 320 are respectively fixed with a rectangular connecting block 322, and the connecting blocks 322 penetrate through the upper side wall and the lower side wall of the flue 3 and are in sliding sealing connection with the flue 3; a first air cylinder 324 is arranged above the upper connecting block 322, the first air cylinder 324 is fixed with the flue 3, the axis of the first air cylinder 324 is arranged along the vertical direction, the lower end of the first air cylinder 324 is provided with a first telescopic arm 323, and the upper connecting block 322 is fixed at the lower end of the first telescopic arm 323; similarly, another first cylinder 324 is arranged below the lower connecting block 322, and the lower connecting block 322 is fixed at the upper end of a first telescopic arm 323 of the other first cylinder 324; when the sponge 320 is to be cleaned, the first telescopic arm 323 of the first air cylinder 324 below is contracted, and meanwhile, the first telescopic arm 323 of the first air cylinder 324 above is synchronously extended, so that the two first air cylinders 324 cooperate to drive the sponge 320 to move downwards to the lower side of the flue 3, and the sponge 320 can be wrung out, cleaned and dried. Similarly, after sponge 320 is wrung out and washed and dried, sponge 320 may be reset by the cooperation of two first cylinders 324.
In order to realize the wringing of the sponge 320 and the cleaning and drying, as shown in fig. 3, the embodiment further comprises a cleaning mechanism, the cleaning mechanism comprises a fixed plate 31 fixed on the flue 3 and positioned on the right side of the lower connecting block 322, a fixed box 340 is fixed on the left side of the lower connecting block 322, the right side of the fixed box 340 is opened, the vertical cross section of the fixed box 340 is rectangular, a pushing block 343 is connected in a sliding sealing manner inside the fixed box 340, the size of the cross section of the pushing block 343 in the vertical direction is consistent with that of the sponge 320, a first automatic valve 344 capable of communicating the left end and the right end of the pushing block 343 is arranged on the pushing block 343, a second cylinder 330 is fixed on the fixed box 340, a second telescopic arm 331 is arranged at the right end of the second cylinder 330, the second telescopic arm 331 penetrates through the left side wall of the fixed box 340 and is connected with the left side wall of the fixed box 340 in a sliding sealing manner, and the right end of the first telescopic arm 323 is fixed with the pushing block 343, so that the pushing block 343 slides back and forth under the driving of the second driving mechanism; the left side wall of the fixed tank 340 is provided with a one-way inlet valve 341 and a one-way outlet valve 342, the one-way outlet valve 342 is connected with an outlet pipe, the other end of the outlet pipe extends to the right end on the fixed tank 340, and the outlet pipe is positioned at the upper end of the fixed tank 340. The second cylinder 330 is a stroke-adjustable cylinder.
The one-way inlet valve 341 is respectively connected with a cleaning tank 350, a water tank 351 and air through an inlet pipe 353, a second automatic valve 352 is arranged between the cleaning tank 350 and the inlet pipe 353, a third automatic valve 354 is arranged between the water tank 351 and the inlet pipe 353, and a fourth automatic valve 355 is arranged between the inlet pipe 353 and the outside; the contact switch 360 is installed at the right upper end of the fixed box 340 on the flue 3, the contact of the contact switch 360 is hemispherical and vertically downward, the push block 343 can be pressed to the contact switch 360 in the horizontal sliding process, and the contact switch 360 is electrically connected with the first automatic valve 344, the second automatic valve 352, the third automatic valve 354, the fourth automatic valve 355 and the second air cylinder 330 through the controller.
In the initial state, the first automatic valve 344 is opened, the second automatic valve 352, the third automatic valve 354, and the fourth automatic valve 355 are closed, the push block 343 is positioned at the left limit position, in the initial state, the maximum position where the second telescopic arm 331 of the second cylinder 330 can move rightward is the distance of the right end surface of the push block 343 from the fixed plate 311cm, the position of the push block 343 when the right end surface of the push block 343 is the distance of the fixed plate 311cm is defined as the first position, and the stroke of the second cylinder 330 at this time is defined as the long stroke.
After the sponge 320 is positioned under the stack 3 by the first cylinder 324, the second cylinder 330 is activated. The method specifically comprises the following steps:
(1) The second cylinder 330 expands and contracts for the first time: long travel, which acts to wring out the sponge 320.
The second telescopic arm 331 of the second air cylinder 330 drives the push block 343 to slide rightwards to the first position, the push block 343 is extruded to the sponge 320 to squeeze water in the sponge 320 to be dried, in the process, the push block 343 can be pressed to the contact switch 360 for the first time and move to the right side of the contact switch 360 beyond the contact switch 360, and the contact switch 360 controls the first automatic valve 344, the second automatic valve 352, the third automatic valve 354 and the fourth automatic valve 355 to be closed and not to act through the controller;
When the push block 343 reaches the first position, the controller controls the second telescopic arm 331 to retract to drive the push block 343 to reset to the left, in this process, the push switch is pressed by the push block 343, the contact switch 360 controls the first automatic valve 344, the second automatic valve 352, the third automatic valve 354 and the fourth automatic valve 355 to close through the controller, and the stroke of the second cylinder 330 is not changed.
(2) The second cylinder 330 expands and contracts for the second time: the stroke becomes short and the inlet end of the switching one-way inlet valve 341 communicates with the inside of the cleaning tank 350.
When the second telescopic arm 331 extends for the second time, after the push block 343 reaches the first position, the controller controls the second telescopic arm 331 to retract to drive the push block 343 to reset to the left, in this process, the push switch is pressed by the push block 343, the contact switch 360 controls the first automatic valve 344 to be closed, the second automatic valve 352 to be opened, the third automatic valve 354 and the fourth automatic valve 355 to be kept closed through the controller, and meanwhile, the maximum position of the second telescopic arm 331 capable of moving to the right is switched to the position that the push block 343 just presses to the push switch, and the position of the push block 343 just when the push block 343 presses to the push switch is defined as the second position, namely, the stroke of the second cylinder 330 is shortened.
(3) The second cylinder 330 expands and contracts for the third time: the cleaning agent is sprayed, and the stroke, the first automatic valve 344, the second automatic valve 352, the third automatic valve 354, and the fourth automatic valve 355 are restored to the initial state.
The second telescopic arm 331 moves right until being pressed to the pressing switch again, in the process, negative pressure is generated inside the fixed box 340, the one-way inlet valve 341 is opened, the fixed box 340 sucks cleaning agent inside the cleaning box 350, when the pushing block 343 is pressed to the contact switch 360 again, the contact switch 360 controls the first automatic valve 344 to be closed, the second automatic valve 352 to be closed, the third automatic valve 354 to be opened, the fourth automatic valve 355 to be closed through the controller, the second telescopic arm 331 contracts for the third time to drive the pushing block 343 to reset leftwards, in the process, positive pressure is generated inside the fixed box 340, the one-way inlet valve 341 is closed, the one-way outlet valve 342 is opened, and the cleaning agent is discharged inside the fixed box 340 to the sponge 320 through the one-way outlet valve 342 and the outlet pipe; at the same time, the contact switch 360 again returns the first automatic valve 344 to an initial state by the controller, the second automatic valve 352, the third automatic valve 354, and the fourth automatic valve 355 to be closed, and the stroke of the second cylinder 330 is returned to the initial state.
(4) The second cylinder 330 expands and contracts for 4 th to 13 th times: the sponge 320 is rubbed by the pushing block 343 with a long stroke.
And (3) repeating the step (1) for 10 times, fully kneading the foam into the sponge 320, and cleaning the sponge 320.
(5) When the second cylinder 330 extends for the 14 th time: long travel, which acts to wring out the sponge 320.
(6) The 15 th expansion and contraction of the second cylinder 330: the stroke becomes short and the inlet end of the switching one-way inlet valve 341 communicates with the inside of the water tank 351.
(7) Second cylinder 330, 16 th expansion: the water is sprayed, the first automatic valve 344 is opened, the second automatic valve 352, the third automatic valve 354, and the fourth automatic valve 355 are closed to restore the initial state.
(8) When the second telescopic arm 331 is extended for the 17 th time: long travel, which acts to wring out the sponge 320.
(9) Second cylinder 330, 18 th expansion: the stroke becomes short and the inlet end of the switching one-way inlet valve 341 communicates with the inside of the water tank 351.
(10) The second cylinder 330 expands and contracts 19 th time: the water spray, the stroke, the first automatic valve 344 being opened, the second automatic valve 352, the third automatic valve 354, and the fourth automatic valve 355 being closed are restored to the original state;
The second cylinder 330 expands and contracts 14-19 to rinse the sponge 320 twice.
(11) The 20 th extension of the second cylinder 330: long travel, which acts to wring out the sponge 320.
(12) Second cylinder 330, 21 st expansion: the stroke becomes short and the inlet end of the switching one-way inlet valve 341 communicates with the air.
(13) Second cylinder 330, 22 nd expansion: blowing, short stroke, first automatic valve 344 opening, second automatic valve 352, third automatic valve 354, and fourth automatic valve 355 closing to restore the initial state;
After drying the sponge 320 by repeating steps (11) - (13), the sponge 320 is reset by the first air cylinder 324.
The foregoing is merely illustrative of the present invention, and the scope of the present invention is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the scope of the present invention, and therefore, the scope of the present invention shall be defined by the scope of the appended claims.

Claims (2)

1. A stable dust removal ventilation system in vehicle welding workshop, its characterized in that: the dust collection device comprises a dust collection cover (1), a flue (3), a cloth bag dust collector (4) and a chimney (6), wherein the dust collection cover (1) is fixed right above a welding station, the flue (3) is used for connecting the dust collection cover (1) with the inlet end of the cloth bag dust collector (4), and the outlet end of the cloth bag dust collector (4) is connected with the chimney (6) through an axial flow fan (5); the drying mechanism comprises a sponge (320) arranged in the flue (3); the sponge (320) is cuboid, and the cross section of the part where the flue (3) is connected with the sponge (320) is rectangular; the upper end and the lower end of the sponge (320) are respectively fixed with a rectangular connecting block (322), and the connecting blocks (322) penetrate through the upper side wall and the lower side wall of the flue (3) and are in sliding sealing connection with the flue (3); the connecting block (322) can move up and down under the drive of the first driving mechanism; the first driving mechanism is a first air cylinder (324), a first telescopic arm (323) is arranged on the first air cylinder (324), and the sponge (320) is fixed with the first telescopic arm (323); the cleaning mechanism comprises a fixed plate (31) fixed on the flue (3) and positioned at one side of the connecting block (322), a fixed box (340) is fixed at the other side of the connecting block (322), one side of the fixed box (340) close to the connecting block (322) is opened, a pushing block (343) is connected in the fixed box (340) in a sliding and sealing manner, a first automatic valve (344) is arranged on the pushing block (343), and the pushing block (343) slides in a left-right reciprocating manner under the driving of the second driving mechanism; a one-way inlet valve (341) and a one-way outlet valve (342) are arranged on the side wall, far away from the connecting block (322), of the fixed box (340), the one-way outlet valve (342) is connected with an outlet pipe, and the other end of the outlet pipe extends to one end, close to the connecting block (322), of the fixed box (340); the one-way inlet valve (341) is respectively connected with the cleaning box (350), the water tank (351) and air through the inlet pipe (353), a second automatic valve (352) is arranged between the cleaning box (350) and the inlet pipe (353), a third automatic valve (354) is arranged between the water tank (351) and the inlet pipe (353), and a fourth automatic valve (355) is arranged between the inlet pipe (353) and the outside; the utility model discloses a fixed box, including fixed box (340), push block (343), contact switch (360) are installed to the position that is located on flue (3) near the one end of connecting block (322), the contact of contact switch (360) is hemispherical and vertical arrange downwards, push block (343) horizontal slip in-process can press contact switch (360), contact switch (360) pass through the controller simultaneously with first automatic valve (344), second automatic valve (352), third automatic valve (354) and fourth automatic valve (355) electric connection.
2. A vehicle welding shop stabilizing dust removal ventilation system according to claim 1, wherein: the inside of the sponge (320) is provided with a curved hole (321).
CN202210691721.6A 2022-06-17 2022-06-17 Stable dust removal ventilation system for vehicle welding workshop Active CN114963395B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207722549U (en) * 2017-12-20 2018-08-14 江西中藻生物科技股份有限公司 A kind of spirulina dust collecting
CN211160972U (en) * 2019-09-18 2020-08-04 陈洁 Medical care sponge cleaning machine
CN211725047U (en) * 2019-12-31 2020-10-23 苏州启能新型建材科技有限公司 Bag-type dust-removing and ash-removing device for processing sand and stone
CN218001753U (en) * 2022-06-17 2022-12-09 奇瑞万达贵州客车股份有限公司 Dust removal ventilation system for vehicle welding workshop

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Publication number Priority date Publication date Assignee Title
CN207722549U (en) * 2017-12-20 2018-08-14 江西中藻生物科技股份有限公司 A kind of spirulina dust collecting
CN211160972U (en) * 2019-09-18 2020-08-04 陈洁 Medical care sponge cleaning machine
CN211725047U (en) * 2019-12-31 2020-10-23 苏州启能新型建材科技有限公司 Bag-type dust-removing and ash-removing device for processing sand and stone
CN218001753U (en) * 2022-06-17 2022-12-09 奇瑞万达贵州客车股份有限公司 Dust removal ventilation system for vehicle welding workshop

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