CN113247425A - Storage cabinet for preventing toxic and harmful solvents from diffusing and process method - Google Patents
Storage cabinet for preventing toxic and harmful solvents from diffusing and process method Download PDFInfo
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- CN113247425A CN113247425A CN202110707060.7A CN202110707060A CN113247425A CN 113247425 A CN113247425 A CN 113247425A CN 202110707060 A CN202110707060 A CN 202110707060A CN 113247425 A CN113247425 A CN 113247425A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/02—Internal fittings
- B65D25/04—Partitions
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B81/00—Cabinets or racks specially adapted for other particular purposes, e.g. for storing guns or skis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0038—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions with means for influencing the odor, e.g. deodorizing substances
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
- B01D46/64—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series arranged concentrically or coaxially
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
- B01D53/82—Solid phase processes with stationary reactants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/02—Internal fittings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/28—Handles
- B65D25/2802—Handles fixed, i.e. non-swingable, handles
- B65D25/2805—Handles fixed, i.e. non-swingable, handles provided on a local area of the side walls
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/90—Odorous compounds not provided for in groups B01D2257/00 - B01D2257/708
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/93—Toxic compounds not provided for in groups B01D2257/00 - B01D2257/708
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a storage cabinet for preventing toxic and harmful solvents from diffusing and a process method, which comprises a cabinet body, wherein a cabinet door is connected onto the cabinet body, a base is installed at the lower end of the cabinet body, a plurality of layers of inner baffles are arranged inside the cabinet body, a suction opening is formed in one side of the cabinet body, the cabinet door comprises a left cabinet door and a right cabinet door, door handles are respectively arranged on the left cabinet door and the right cabinet door, an air collecting and filtering device is arranged at the upper end of the cabinet body, the air collecting and filtering device comprises primary filtration, dry chemical filtration, intermediate filtration and high-efficiency filtration, the dry chemical filtration is arranged on one side of the primary filtration, the intermediate filtration is arranged on one side of the dry chemical filtration, and the high-efficiency filtration is arranged on one side of the intermediate filtration, the harm of the escaped gas to the working environment and workers is avoided.
Description
Technical Field
The invention relates to the technical field of chip manufacturing, in particular to a storage cabinet for preventing toxic and harmful solvents from diffusing and a process method.
Background
In chip manufacturing and electronic circuit production and manufacturing processes, volatile organic compounds escape into a storage room in an explosion-proof storage cabinet for storing raw materials such as solvents and the like, so that adverse effects on physical and psychological health of operators are caused. In severe cases, the concentration of the pollutant may exceed the safety level allowed by "occupational exposure limits for chemically harmful factors in workplace air" in the national standards "occupational exposure limits for harmful factors in workplaces".
The storage cabinet which is common in the market mainly comprises accessories such as a cabinet body, a cabinet door, a base, an inner partition plate, a door handle and the like. The discharge opening, which is usually used to discharge the harmful substances accumulated in the cabinet, is designed on the cabinet body, and is generally designed as a connector (suction opening) of DN 25-DN 50. The interface is used for installing the gas in the suction cabinet, discharging the gas to the outside and purifying the gas. Usually the design is based on the amount of suction when the cabinet door is closed. This suction volume is opened the cabinet door at the operation personnel and is got, when putting the material, can not satisfy the negative pressure far away and prevent that the pollutant in the cabinet from diffusing in the room. Resulting in contamination of the indoor air. Seriously affecting the working environment and the health of workers. Particularly, the space of a dust-free workshop or a clean room is relatively closed, the polluted gas is accumulated continuously, the concentration of the polluted gas is higher, the peculiar smell is more obvious, particularly, at the moment that the door of a working personnel is opened, the cabinet door can suck the harmful gas into the human face, and the health of the working personnel is greatly harmed.
Disclosure of Invention
The invention aims to provide a storage cabinet for preventing toxic and harmful solvents from diffusing and a process method, aiming at solving the problems in the background technology, and introducing a novel filtering material for purifying and removing peculiar smell by chemical reaction for removing gas odor components dissipated from the cabinet, so that the harm of the dissipated gas to the working environment and workers is avoided.
In order to achieve the purpose, the invention provides the following technical scheme: a storage cabinet for preventing toxic and harmful solvents from diffusing comprises a cabinet body, wherein a cabinet door is connected to the cabinet body, a base is installed at the lower end of the cabinet body, a plurality of layers of inner partition plates are arranged in the cabinet body, a suction opening is formed in one side of the cabinet body, the cabinet door comprises a left cabinet door and a right cabinet door, door handles are respectively arranged on the left cabinet door and the right cabinet door, an air collecting and filtering device is arranged at the upper end of the cabinet body and comprises primary filtration, dry chemical filtration, intermediate filtration and high-efficiency filtration, the dry chemical filtration is installed on one side of the primary filtration, the intermediate filtration is installed on one side of the dry chemical filtration, the high-efficiency filtration is installed on one side of the intermediate filtration, a fan is installed on one side of the high-efficiency filtration, an air outlet is formed in one side of the fan, a protection device is arranged on the cabinet door and comprises a protection left plate and a protection right sleeve, the protection left plate is installed on the inner side of the left cabinet door, the protection right sleeve is installed on the inner side of the right cabinet door, a starting switch is arranged on the cabinet body, and the starting switch controls the fan; can reduce the internal harmful substance of cabinet through setting up air filter, get rid of harmful substance through just imitating filtration, dry-type chemical filtration, well effect filtration and high efficiency filtration, reduced the pollution concentration of the cabinet body, play the key role to staff's healthy, simultaneously through setting up protector, further completion is to personnel's protection, guarantees the safety of staff when materials such as solvent take.
Preferably, a lower pore plate is arranged in the vertical direction of the multilayer inner partition plates, the multilayer inner partition plates are fixedly connected with the lower pore plate, an interlayer is arranged between the lower pore plate and the lower side of the back plate of the cabinet body, the interlayer extends to a position between the back plate and the upper pore plate, and the upper pore plate is connected with the air collecting and filtering device; through setting up the interior baffle one side of multilayer and setting up down the orifice plate and design exhaust passage to harmful gas, guide the intermediate layer with harmful substance through the orifice plate, discharge fast.
Preferably, the protection left plate is slidably mounted on the left cabinet door, the protection right sleeve is fixedly mounted on the right cabinet door, the rear end of the protection left plate is provided with a driving device, and the driving device is mounted on the side wall of the cabinet body; the protection right board is mainly that open the cabinet door in the twinkling of an eye at the personnel, through the suction of cabinet door to inside gas in the twinkling of an eye, blow harmful gas to the human body, cause staff 'S injury, for guaranteeing that the staff is healthy, will open in the cabinet door in the twinkling of an eye, the gap of opening the cabinet door through drive arrangement is closed temporarily, the fan has started this moment, can reduce the internal harmful gas concentration of cabinet fast, both ends can inwards convulsions about the gap that the cabinet door was opened simultaneously, cause harm gas to take out through the intermediate layer with higher speed and leave, through 10-20S' S back of taking out, the left board of protection withdraws, the staff work of opening the door.
Preferably, the driving device comprises a driving motor, the driving motor is mounted on a motor base on the side wall of the cabinet body, the driving motor is rotatably connected with a driving screw, the driving screw is hinged with a driving rod, the driving rod is connected with the protection left plate, and the starting switch controls the driving device; the driving motor can drive the protection left plate to move and be inserted into the protection right sleeve, so that protection personnel are not damaged by gas.
Preferably, a protection clamping plate is arranged on the protection right sleeve and comprises a movable plate and a fixed plate, the movable plate is mounted on one side of the protection right sleeve, the fixed plate is mounted on the other side of the protection right sleeve, an electromagnetic valve is arranged on the movable plate and pushes the movable plate to move, and the electromagnetic valve is fixed on the protection right sleeve; the protection splint that set up on the protection right side cover can press from both sides tight protection left board through the solenoid valve, prevents that personnel from opening by mistake hard and causing the injury, presss from both sides tightly more stably through the solenoid valve.
Preferably, the lower pore plate is provided with a lower through hole, the lower through hole is arranged on the lower pore plate in an upward inclined manner, the upper pore plate is provided with an upper through hole, and the upper through hole is arranged perpendicular to the upper pore plate; the lower through hole arranged on the lower hole plate is obliquely and upwards arranged, so that upward transmission of polluted gas can be accelerated, the emission of the gas is accelerated, and the gas is ensured to be discharged as soon as possible.
Preferably, the dry chemical filtration is composed of a porous medium material and a chemical agent, the porous medium material is one or more of alumina, activated carbon or a molecular sieve, and the chemical agent is one or more of potassium permanganate, sodium permanganate, phosphoric acid, FeS, MgO, NaOH, KOH or dibromothymolsulfonphthalein.
A process method for a storage cabinet for preventing toxic and harmful solvents from diffusing comprises the following steps:
s1: when the cabinet door is opened by an operator, a starting switch arranged on a door frame is triggered to start a fan, pollutants in the cabinet enter an interlayer through a through hole in the inclined upper part of the lower hole plate, and the air speed of the polluted gas entering the interlayer is controlled to be 0.3-1.0 m/s by controlling the fan;
s2: the air enters an upper orifice plate through an interlayer, then enters an air collecting and filtering device, then is sequentially subjected to primary filtration, dry chemical filtration, intermediate filtration and high-efficiency filtration, is induced by a fan at the rear end of the high-efficiency filtration, and is finally cleanly discharged through an air outlet;
s3: after an operator opens the cabinet door to trigger the starting switch, the driving device operates simultaneously, the driving motor drives the driving screw to push forwards, the driving rod hinged with the driving screw pushes forwards to push the protection left plate, the protection left plate is movably inserted into the protection right sleeve to prevent the cabinet door from being opened, a certain distance is reserved between the left cabinet door and the right cabinet door in the process, the protection left plate is connected with the protection right sleeve, the fan operates to extract polluted gas through holes formed in the upper part and the lower part of the cabinet door at the moment, the polluted degree of a worker at the moment of opening the cabinet door is avoided, the driving motor automatically turns over to drive the driving screw to retract after the driving motor operates for 10-20s, the worker can continue to open the cabinet door to work, and the harmful solvent gas discharging process is completed;
s4: when the cabinet door is completely closed after the work is finished, the fan stops, and pollutant gas in the cabinet is discharged to the outside through the suction port.
Compared with the prior art, the invention has the beneficial effects that:
1. can reduce the internal harmful substance of cabinet through setting up air filter, get rid of harmful substance through just imitating filtration, dry-type chemical filtration, well effect filtration and high efficiency filtration, reduced the pollution concentration of the cabinet body, play the key role to staff's healthy, simultaneously through setting up protector, further completion is to personnel's protection, guarantees the safety of staff when materials such as solvent take.
2. The protection right board is mainly that open the cabinet door in the twinkling of an eye at the personnel, through the suction of cabinet door to inside gas in the twinkling of an eye, blow harmful gas to the human body, cause staff 'S injury, for guaranteeing that the staff is healthy, will open in the cabinet door in the twinkling of an eye, the gap of opening the cabinet door through drive arrangement is closed temporarily, the fan has started this moment, can reduce the internal harmful gas concentration of cabinet fast, both ends can inwards convulsions about the gap that the cabinet door was opened simultaneously, cause harm gas to take out through the intermediate layer with higher speed and leave, through 10-20S' S back of taking out, the left board of protection withdraws, the staff work of opening the door.
3. The novel chemical reaction purification peculiar smell removal filtering material is introduced for removing gas odor components dissipated from the cabinet, and the harm of the dissipated gas to the working environment and workers is avoided.
Drawings
Fig. 1 is a schematic structural diagram of a cabinet body of the storage cabinet.
Fig. 2 is a schematic view of the overall structure of the storage cabinet for preventing the diffusion of toxic and harmful solvents according to the present invention.
Fig. 3 is a side view of the storage cabinet for preventing the diffusion of toxic and harmful solvents according to the present invention.
Fig. 4 is a schematic structural diagram of a storage cabinet driving device according to the present invention.
Fig. 5 is a schematic view of the overall structure of the storage cabinet protection device of the present invention.
FIG. 6 is a schematic view of the structure of the lower orifice plate and porous medium of the storage cabinet of the present invention
Reference numerals: 1. the cabinet body, 2, a cabinet door, 3, a base, 4, a multilayer inner partition board, 5, a door handle, 6, a suction opening, 7, an air collecting and filtering device, 9, primary filtration, 10, dry chemical filtration, 11, intermediate filtration, 12, high-efficiency filtration, 13, a fan, 14, an air outlet, 15, an interlayer, 16, a lower hole board, 17, a porous medium, 19, a left cabinet door, 20, a right cabinet door, 21, a protection device, 22, a protection left board, 23, a protection right sleeve, 24, a starting switch, 25, a back board, 26, a driving device, 27, a driving motor, 28, a driving base, 29, a driving screw rod, 30, a driving rod, 31, a protection clamp board, 32, a movable board, 33, a fixed board, 34, an electromagnetic valve, 35, a lower through hole, 36, an upper through hole, 37 and an upper hole board.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
Examples
A storage cabinet for preventing toxic and harmful solvents from diffusing comprises a cabinet body 1, wherein a cabinet door 2 is connected to the cabinet body 1, a base 3 is installed at the lower end of the cabinet body 1, a plurality of layers of inner partition plates 4 are arranged inside the cabinet body 1, a suction opening 6 is arranged on one side of the cabinet body 1, the cabinet door 2 comprises a left cabinet door 19 and a right cabinet door 20, door handles 5 are respectively arranged on the left cabinet door 19 and the right cabinet door 20, an air collecting and filtering device 7 is arranged at the upper end of the cabinet body 1, the air collecting and filtering device 7 comprises a primary filter 9, a dry chemical filter 10, a middle filter 11 and a high filter 12, a dry chemical filter 10 is installed on one side of the primary filter 9, a middle filter 11 is installed on one side of the dry chemical filter 10, a high filter 12 is installed on one side of the middle filter 11, a fan 13 is installed on one side of the high filter 12, and an air outlet 14 is arranged on one side of the fan 13, the cabinet door 2 is provided with a protection device 21, the protection device 21 comprises a protection left plate 22 and a protection right sleeve 23, the protection left plate 22 is installed on the inner side of the left cabinet door 19, the protection right sleeve 23 is installed on the inner side of the right cabinet door 20, the cabinet body 1 is provided with a starting switch 24, and the starting switch 24 controls the fan 13; can reduce the internal harmful substance of cabinet through setting up air filter 7, filter 9, dry-type chemistry through just imitating, filter 11 and high efficiency filter 12 with harmful substance and get rid of in the middle-aged, reduced the pollution concentration of the cabinet body, play the key effect to staff's healthy, simultaneously through setting up protector, further completion is to personnel's protection, guarantees the safety of staff when materials such as solvent take.
A lower pore plate 16 is arranged in the vertical direction of the multilayer inner partition plate 4, the multilayer inner partition plate 4 is fixedly connected with the lower pore plate 16, an interlayer 15 is arranged between the lower pore plate 16 and the lower side of a back plate 25 of the cabinet body 1, the interlayer 15 extends to a position between the back plate 25 and an upper pore plate 37, and the upper pore plate 16 is connected with the air collecting and filtering device 7; a lower pore plate 16 is arranged on one side of the multilayer inner partition plate 4 to design a discharge passage for harmful gas, and the harmful substances are guided to the interlayer through the pore plate and are discharged quickly.
The protection left plate 22 is slidably mounted on the left cabinet door 19, the protection right sleeve 23 is fixedly mounted on the right cabinet door 20, the rear end of the protection left plate 22 is provided with a driving device 26, and the driving device 26 is mounted on the side wall of the cabinet body 1; protection right side cover 23 is mainly opening cabinet door 2 a moment at the personnel, through cabinet door 2 to inside gaseous suction in the twinkling of an eye, blow harmful gas to the human body, cause staff 'S injury, for guaranteeing that the staff is healthy, will open a moment at the cabinet door, the gap of opening cabinet door 2 through drive arrangement 26 is temporarily closed, the fan has been started this moment, can reduce the harmful gas concentration in the cabinet body 1 fast, both ends can inside convulsions about the gap that can open through cabinet door 2 simultaneously, cause harm gas to take out through the intermediate layer with higher speed, through 10-20S' S the back of taking out, protection left side board 22 withdraws, the staff opens the door work.
The driving device 26 comprises a driving motor 27, the driving motor 27 is mounted on a motor base 28 on the side wall of the cabinet body 1, the driving motor 27 is rotatably connected with a driving screw 29, the driving screw 29 is hinged with a driving rod 30, the driving rod 30 is connected with the protection left plate 22, and the starting switch 24 controls the driving device 26; the driving motor 27 can drive the protection left plate 22 to move and be inserted into the protection right sleeve 23, so that protection personnel are not damaged by gas.
The protection right sleeve 23 is provided with a protection clamp plate 31, the protection clamp plate 31 comprises a movable plate 32 and a fixed plate 33, the movable plate 32 is installed on one side of the protection right sleeve 23, the fixed plate 33 is installed on the other side of the protection right sleeve 23, the movable plate 32 is provided with an electromagnetic valve 34, the electromagnetic valve 34 pushes the movable plate 32 to move, and the electromagnetic valve 34 is fixed on the protection right sleeve 23; the protection splint 31 that sets up on the protection right side cover 23 can press from both sides tight protection left plate 23 through solenoid valve 34, prevents that personnel from opening by mistake hard and causing the injury, presss from both sides tightly more stably through solenoid valve 34.
A lower perforated plate 35 is arranged on the lower perforated plate 16, the lower perforated plate 35 is obliquely arranged on the lower perforated plate 16 upwards, an upper perforated plate 36 is arranged on the upper perforated plate 37, and the upper perforated plate 36 is arranged perpendicular to the upper perforated plate 37; the lower through hole 35 arranged on the lower orifice plate 16 is obliquely and upwards arranged, so that the upward transmission of the polluted gas can be accelerated, the emission of the gas is accelerated, and the gas is ensured to be discharged as soon as possible.
The dry chemical filter 10 is composed of a porous medium 17 material and a chemical agent, the porous medium material is one or more of alumina, activated carbon or a molecular sieve, and the chemical agent is one or more of potassium permanganate, sodium permanganate, phosphoric acid, FeS, MgO, NaOH, KOH or dibromothymolsulfonphthalein.
A process method for a storage cabinet for preventing toxic and harmful solvents from diffusing comprises the following steps:
s1: when the cabinet door 2 is opened by an operator, a starting switch 24 arranged on a door frame is triggered to start the fan 13, pollutants in the cabinet enter the interlayer 15 through the inclined upper perforation of the lower hole plate 16, and polluted gas enters the interlayer 15 by controlling the fan 13, wherein the wind speed is controlled to be 0.3-1.0 m/s;
s2: the air enters an upper orifice plate 37 through a clamp 15, then enters an air collecting and filtering device 7, then sequentially passes through a primary filter 9, a dry chemical filter 10, a secondary filter 11 and a high-efficiency filter 12, is induced by a fan 13 at the rear end of the high-efficiency filter 12, and is finally cleaned and removed through an air outlet 14;
s3: after an operator opens the cabinet door 2 to trigger the starting switch 24, the driving device 26 operates simultaneously, the driving motor 27 drives the driving screw 29 to push forwards, the driving rod 30 hinged to the driving screw 29 pushes forwards to push the protection left plate 22, the protection left plate 22 is movably inserted into the protection right sleeve 23 to prevent the cabinet door 2 from being opened, a certain distance is reserved between the left cabinet door 19 and the right cabinet door 20 in the process, the protection left plate 22 is connected with the protection right sleeve 23, the fan 13 operates to extract polluted gas through holes formed in the upper part and the lower part of the cabinet door 2 at the moment, the polluted degree of the operator at the moment of opening the cabinet door is avoided, after the driving motor 27 operates for 10-20s, the driving motor 27 automatically turns over to drive the driving screw 29 to retract, the operator can continue to open the cabinet door to work, and the harmful solvent gas exhaust process is completed;
s4: when the cabinet door 2 is completely closed after the work is finished, the fan 13 stops, and pollutant gas in the cabinet is discharged to the outside through the suction port.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions are considered to be within the protective scope of the present invention.
Claims (8)
1. A storage cabinet for preventing toxic and harmful solvents from diffusing comprises a cabinet body, wherein a cabinet door is connected to the cabinet body, and a base is mounted at the lower end of the cabinet body, the storage cabinet is characterized in that a plurality of layers of inner partition plates are arranged in the cabinet body, a suction opening is formed in one side of the cabinet body, the cabinet door comprises a left cabinet door and a right cabinet door, door handles are respectively arranged on the left cabinet door and the right cabinet door, an air collecting and filtering device is arranged at the upper end of the cabinet body and comprises primary filtration, dry chemical filtration, intermediate filtration and high-efficiency filtration, the dry chemical filtration is arranged on one side of the primary filtration, the intermediate filtration is arranged on one side of the dry chemical filtration, the high-efficiency filtration is arranged on one side of the intermediate filtration, a fan is arranged on one side of the high-efficiency filtration, an air outlet is formed on one side of the fan, and a protective device is arranged on the cabinet door, the protection device comprises a protection left plate and a protection right sleeve, the protection left plate is installed on the inner side of the left cabinet door, the protection right sleeve is installed on the inner side of the right cabinet door, a starting switch is arranged on the cabinet body, and the starting switch controls the fan.
2. A storage cabinet for preventing toxic and harmful solvents from diffusing according to claim 1, wherein a lower hole plate is arranged in the vertical direction of the multi-layer internal partition plate, the multi-layer internal partition plate is fixedly connected with the lower hole plate, an interlayer is arranged between the lower hole plate and the lower side of the back plate of the cabinet body, the interlayer extends to a position between the back plate and the upper hole plate, and the upper hole plate is connected with the air collecting and filtering device.
3. The storage cabinet for preventing the diffusion of toxic and harmful solvents according to claim 1, wherein the protective left plate is slidably mounted on the left cabinet door, the protective right sleeve is fixedly mounted on the right cabinet door, and the rear end of the protective left plate is provided with a driving device which is mounted on the side wall of the cabinet body.
4. The storage cabinet for preventing the toxic and harmful solvent from diffusing according to claim 3, wherein the driving device comprises a driving motor, the driving motor is mounted on a motor base of the side wall of the cabinet body, the driving motor is rotatably connected with a driving screw, the driving screw is hinged with a driving rod, the driving rod is connected with the protection left plate, and the starting switch controls the driving device.
5. The storage cabinet for preventing the diffusion of toxic and harmful solvents according to claim 3, wherein a protection clamp plate is arranged on the protection right sleeve, the protection clamp plate comprises a movable plate and a fixed plate, the movable plate is mounted on one side of the protection right sleeve, the fixed plate is mounted on the other side of the protection right sleeve, a solenoid valve is arranged on the movable plate, the solenoid valve pushes the movable plate to move, and the solenoid valve is fixed on the protection right sleeve.
6. A cabinet for preventing toxic and harmful solvents from diffusing according to claim 2, wherein the lower perforated plate is provided with lower perforations, the lower perforations are arranged on the lower perforated plate in an upward inclined manner, the upper perforated plate is provided with upper perforations, and the upper perforations are arranged perpendicular to the upper perforated plate.
7. The cabinet as claimed in claim 1, wherein the dry chemical filter is composed of porous medium material and chemical agent, the porous medium material is one or more of alumina, activated carbon or molecular sieve, the chemical agent is one or more of potassium permanganate, sodium permanganate, phosphoric acid, FeS, MgO, NaOH, KOH or dibromothymolsulfonphthalein.
8. A process for manufacturing a storage cabinet for preventing the diffusion of toxic and harmful solvents, wherein the storage cabinet for preventing the diffusion of toxic and harmful solvents is the storage cabinet of any one of claims 1 to 7, comprising the steps of:
s1: when the cabinet door is opened by an operator, a starting switch arranged on a door frame is triggered to start a fan, pollutants in the cabinet enter an interlayer through a through hole in the inclined upper part of the lower hole plate, and the air speed of the polluted gas entering the interlayer is controlled to be 0.3-1.0 m/s by controlling the fan;
s2: the air enters an upper orifice plate through an interlayer, then enters an air collecting and filtering device, then is sequentially subjected to primary filtration, dry chemical filtration, intermediate filtration and high-efficiency filtration, is induced by a fan at the rear end of the high-efficiency filtration, and is finally cleanly discharged through an air outlet;
s3: after an operator opens the cabinet door to trigger the starting switch, the driving device operates simultaneously, the driving motor drives the driving screw to push forwards, the driving rod hinged with the driving screw pushes forwards to push the protection left plate, the protection left plate is movably inserted into the protection right sleeve to prevent the cabinet door from being opened, a certain distance is reserved between the left cabinet door and the right cabinet door in the process, the protection left plate is connected with the protection right sleeve, the fan operates to extract polluted gas through holes formed in the upper part and the lower part of the cabinet door at the moment, the polluted degree of a worker at the moment of opening the cabinet door is avoided, the driving motor automatically turns over to drive the driving screw to retract after the driving motor operates for 10-20s, the worker can continue to open the cabinet door to work, and the harmful solvent gas discharging process is completed;
s4: when the cabinet door is completely closed after the work is finished, the fan stops, and pollutant gas in the cabinet is discharged to the outside through the suction port.
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| CN113247425B (en) | 2021-11-09 |
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