KR101854274B1 - Waste liquid recovery cabinet - Google Patents

Abstract

The present invention relates to a cabinet for storing a waste liquid container, which is able to safely collect waste liquid in a laboratory and to improve the environment of the laboratory by preventing a leakage of toxic gases. The cabinet for storing a waste liquid container comprises: a cabinet having a storage space divided by partitions to allow an upper surface door, a front surface door, and the waste liquid container to be placed, and having a drawer formed on a lower side thereof; a toxic gas removing device installed on a rear surface portion of the cabinet to remove toxic gases; an exhaust duct contacting upper and lower portions of the toxic gas removing device; a lid for a funnel installed on the upper surface door; and a sensor formed to be able to spatially move by means of a moving wheel handle installed on the cabinet and making a contact with the upper surface lid. As the sensor is connected to the toxic gas removing device, power is supplied to the toxic gas removing device when the upper surface lid is opened, thereby removing the toxic gases generated when the waste liquid is poured into the waste liquid container.

Description

{WASTE LIQUID RECOVERY CABINET}

The present invention prevents leakage of harmful gas in a cabinet preventing mixed reagents stored in laboratories and laboratories and prevents contamination of the air in the laboratory, It is about.

In general, a variety of drugs and reagents are used in laboratories and laboratories for experimental and research purposes. At this time, the reagents used are relatively expensive and sensitive to the storage environment such as temperature and humidity, and exhibit a decrease in the activity over time, so the storage conditions and the expiration date are determined.

Therefore, when a reagent or a drug having a reduced activity due to the expiration of the validity period is used, accurate experimental results can not be obtained and it can be led to wrong conclusions. Therefore, it is preferable to effectively use effective reagents in a short period of time.

In addition, it is necessary to store and collect different kinds of compounds or disaster-prone substances (spent lung reagents, waste liquid, etc.) under thorough management.

On the other hand, the waste liquid generated from the laboratories of hazardous chemical substances or chemical laboratories is classified into organic solvent waste and inorganic acid waste liquid, and two waste plastic bottles are prepared. .

As shown in FIG. 1, a door 220 installed on a front surface of a main body of a cabinet 200 provided with a storage space 210 for accommodating closed cylinders 100 and 100 is opened, The lid 110 is sealed.

The waste liquid remaining in the reagent bottle is poured into the funnel 130 after the additional funnel 130 is attached to the injection port 120 from which the lid 110 is separated and the waste liquid is transferred to the closed sachet 100. Then, after separating the funnel 130 from the filling opening 120 of the open flame, the lid 110 is assembled again to the filling port 120 so that the noxious gas is sealed and stored so as not to leak to the outside.

However, in the past, when the waste liquid is transferred to the cabinet, there is no proper safety device for removing the harmful gas flowing out from the waste liquid, so that the researcher is exposed to the harmful gas and poses a risk factor for safety.

In addition, during the experiment, the researcher often leaves the lid 110 in the laboratory untouched because it is troublesome and troublesome to open and close the lid 110 when the lid 110 is closed. Therefore, There is a problem that the air in the laboratory is contaminated.

In addition, in order to move the closed vending machine 100 collected from a laboratory to a moving place, conventionally, when the cabinet 200 is moved to a separate hand cart, It is a problem that the hazardous gas is leaked due to the fall.

In addition, as the outer surface of the conventional cabinet is finished with iron powder coating, it has been pointed out that the paint is easily peeled or corroded when it is exposed to a strong organic or inorganic acid liquid, and that its service life is not long.

Therefore, it is necessary to remove the potential risk based on the working environment that does not meet the criteria such as the exposure of the researchers to the hazardous gas, and to store the waste liquid or dangerous chemicals in a safe way It is desperately required.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide an apparatus and a method for efficiently storing a large amount of waste, And it is an object of the present invention to provide a storage cabinet for a closed-type dispenser which can be safely stored.

It is another object of the present invention to provide a cabinet for a closed-pouch cashbox which can remove and purify noxious gas without exposing it to the laboratory as well as the laboratory even if the waste liquid is transferred or transferred and then the lid is not closed.

It is another object of the present invention to provide an improved closed cash dispenser cabinet that can easily move a cabinet containing a waste liquid without a hassle using a separate hand cart.

In order to solve the above problems, the present invention provides a closed cash dispenser cabinet for collecting and storing waste liquid, the cabinet including a door (an upper face door and a front door) Two compartments (noxious gas and inorganic acid) divided into two compartments are provided so that each of the pneumatic cylinders (organic gas pneumatic cylinders and inorganic acid pneumatic cylinders) can be placed. In the lower side, broken containers and waste pieces are stored, , A cabinet for slidingly reciprocatingly moving the cabinet together with a drawer for reciprocating movement, a harmful gas removing device installed on the backside of each storage space for removing harmful gas, And an exhaust duct for sucking the gas and circulating the purified air, wherein an upper surface door of the cabinet is provided with an upper surface portion of the funnel Wherein the funnel lid is configured to block an upper surface portion of the funnel to block the outflow of noxious gas through the funnel when the funnel lid is attached to the funnel lid to cover the funnel lid.
A funnel lid 222 is provided on the upper surface door 220 of the cabinet 200 to block the upper surface of the funnel 130. The funnel lid 222 is screwed into a screw shaft And a tension spring 226 is attached to the screw shaft 224 to apply a tension between the rotary knob 225 and the upper surface cover 220. The screw shaft 224 is fixed to the screw shaft 224 via a rotary knob 225, (224) is prevented from being unwound arbitrarily.

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As described above, in the closed cabinet of the present invention, the harmful gas generated when the waste liquid is discarded into the waste reagent bottle is repeatedly collected and purified by using the harmful gas removing device to circulate the harmful gas, It is effective.

In addition, the present invention has the effect of contributing to maintaining a comfortable working environment of the laboratory because the sealing material attached to the upper surface door blocks the upper surface portion of the funnel and the toxic gas does not flow out to the outside even if the lid of the closed tube is not closed.

In addition, the closed-box storage cabinet of the present invention has an effect of facilitating storage without occupying a large space in a laboratory, and being formed in a proper size and height so that it is easy to use and can safely store as much waste as possible .

In addition, the present invention has an advantage that a cabinet containing a waste liquid can be easily moved in a space by using a wheel and a handle integrally provided in a cabinet without the hassle of using a separate hand cart.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an illustration of a conventional closed cash vat storage cabinet,
2 is an exemplary view for explaining a configuration of a closed cashbox storage cabinet according to the present invention,
Fig. 3 is a front sectional view showing the internal configuration of the closed cashbox storage cabinet of the present invention,
FIG. 4 and FIG. 5 are cross-sectional views showing the use state of the closed-box storage cabinet of the present invention,

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of a closed cash dispenser cabinet according to the present invention will be described in detail with reference to the accompanying drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description, only parts necessary for understanding the present invention will be described, and terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms. The configurations shown in the examples and the drawings are only preferred embodiments of the present invention, and various equivalents and modifications may be made to the technical idea of the present invention.

3 is a cross-sectional view showing the internal construction of a closed cashbox storage cabinet according to the present invention, and FIG. 3 is a sectional view showing the internal structure of a closed cashbox storage cabinet according to the present invention. In the case of constructing a closed cashbox storage cabinet for storing a box, a box-like drawer (not shown) is installed so as to accommodate a loading space 210 (210a, 210b) in which a closed box 100 (100a, 100b) (300) provided on the inner rear surface of the cabinet (200) for purifying noxious gas, and a noxious gas removing device (300, 300a, 300b) (400a, 400b) connected to the upper and lower portions of the loading space (210) to suck noxious gas generated in the loading space (210) and transfer the air to the filter and recycle the air purified by the filter back to the lower side of the loading space And the cabinet 200 A moving wheel 500 attached to the lower side of the cabinet 200 for easy movement of the cabinet 200 by sliding or pushing the cabinet 200 and a carrying handle 700 fixed to the upper side of the rear surface of the cabinet 200.

A sensor 600 connected to the harmful gas removing device 300 is installed on the upper surface of the cabinet 200. The sensor 600 is configured to be in contact with the upper surface door 220, The operation of turning on the power to the harmful gas removing apparatus 300 and the exhaust duct 400 at the time of opening the waste liquid dispenser 100 and pouring the waste liquid into the closed canister 100 or the contaminated So that the air can be collected in the harmful gas removing device 300 to prevent contamination of the laboratory air due to the harmful gas.

The funnel lid 222 formed in a sufficiently large size and shape to cover the upper surface of the funnel 130 positioned on the upper surface of the closed canisters 100a and 100b is inserted into the upper surface door 220 of the cabinet 200, The upper surface of the funnel 130 is opened and the upper surface door 22 is closed to open the upper surface door 220 of the cabinet 200 so that the funnel lid 222 is inserted into the funnel 130, So as to block the outflow of the noxious gas.

In the above configuration, the lid 110, which is formed of a container capable of accommodating contents and blocks the injection port 120, and the funnel 130, which is used as an auxiliary means for transferring the waste reagent, The configuration is the same as that of the conventional art, and a description thereof will be omitted.

The cabinet 200 is made of a PVC or PC material so as to form a box shape in which a front surface and a part of an upper surface of the cabinet 200 are opened. The cabinet 200 is prevented from being damaged even when exposed to a strong organic or inorganic acid liquid, The upper surface door 220 provided with the grips 221 and 231 and the front door 230 are fixedly coupled via the hinges 224 and 234 to open or close a part of the upper surface of the main body using the upper surface door 220 And the front door 230 is adapted to insert and withdraw the respective open closures 100a and 100b enclosed in the loading spaces 210a and 210b.

A funnel lid 222 protruding downward by a predetermined length is assembled to the bottom surface of the upper surface door 220 of the cabinet 200. The funnel lid 222 is made of a flexible plastic material Urethane, and rubber, so that the funnel lid 222 is brought into intimate contact with the upper surface of the funnel 130 so as to enclose the upper surface of the funnel 130 to prevent the noxious gas from flowing out.

The funnel lid 222 is assembled to the tip end of a screw shaft 224 screwed to the upper surface door 220 and is guided by a rotary knob 225 formed at the other end of the funnel lid 222, And the user can change the distance (height) of the upper surface of the funnel 130 which is seated in the closed vessel 100. The screw shaft 224 is provided with a rotary knob 225 and an upper lid 220, A tension spring 226 for applying a tension between the screw shaft 224 and the screw shaft 224 is configured to prevent the set screw shaft 224 from unwinding arbitrarily.

6 shows a further embodiment of the present invention in which the funnel lid 222 is provided with a bellows-shaped bellows (not shown) which is assembled on the lower side of the upper surface door 220 via a small screw 229 228 and is closed by covering the upper surface of the funnel 130 by the weight of the funnel lid 222 fixed to the corrugated pipe 228.

A water level sensor (not shown) formed of a filter-type water level indicator is installed in the funnel 130 to detect the level of the water in the canister 100. The water level sensor includes a water level sensor 135 having a controller And detects the level of the water in the closed bottle 100 by using the level sensor 135 to detect an accident caused by the sudden explosion of the closed bottle 100 filled with the spent reagent by high temperature / high pressure.

The water level sensor 135 may be installed anywhere on the inner side of the cabinet or on the outer side of the cabinet, as long as it can be visually confirmed by the operator or researchers.

Each of the loading spaces 210 (210a and 210b) divided into two parts by a partition 240 supported by the center of the bottom surface and the back surface is formed on the inner side surface of the cabinet 200, : 210a, 210b) for placing and storing different kinds of waste reagents.

A box-like drawer 250 having an opened upper face is assembled to the lower side of the cabinet 200 so as to be slidable in forward and backward directions using a knob 252 attached to the drawer 250, (Such as the broken reagent bottle 900 and the waste piece 800) can be inserted and withdrawn.

A harmful gas removing apparatus 300 for purifying noxious gas is installed in the inner rear surface of the cabinet 200. The noxious gas removing apparatus 300 is provided with respective closed syringes 100a and 100b or organic solvents (VOCs) An organic gas removing filter 300a for removing noxious gas generated in the closed cylinder 100a or 100b and an inorganic gas removing filter 300b for removing inorganic gas generated in the inorganic acid gas cylinder 100a or 100b.

The organic gas removing filter 300a of the apparatus 300 for removing harmful gas includes an organic gas filter for filtering the harmful gas generated in the closed cylinder 100a or 100b and a fine dust filter for filtering the fine dust contained in the organic gas .

In the organic gas filter, both activated carbon and zeolite, which remove both noxious gas having polarity and non-polarity, can be used. In the inorganic gas removing filter, the zeolite-mixed magnesium - a filter made of a mixture of aluminum oxide and calcium hydroxide or calcium oxide to filter inorganic acid gas and fine dust containing a large amount of water.

The exhaust ducts 400a and 400b provided with the blowing fans are coupled to the upper and lower sides of the noxious gas removing device 300 and the cabinet 200 so that the harmful gas generated on the upper side of the loading space 210 The gas is forcibly sucked into the exhaust duct 400a provided with the blowing fan 410 and is conveyed to the filter. The air purified by the filter is supplied to the exhaust duct 400b provided with the blowing fan 410 installed at the lower side To the lower side of the loading space 210 by repeating the above-described process.

The exhaust ducts 400a and 400b are made of PP pipes made of PP (polypropylene) which are resistant to inorganic gas and organic gas and are less likely to be damaged by external impact, And can be connected to the back surface of the device 300 and the cabinet 200, respectively.

In addition, a sensor 600 connected to the harmful gas removing device 300 and the exhaust ducts 400a and 400b provided with the blowing fan is installed on the inner upper surface of the cabinet 200, Is configured to open or close the upper surface door 220 to turn on or off the power of the harmful gas removing apparatus 300.

Therefore, when the researcher opens the upper door 220 to pour the waste liquid contained in the reagent bottle 900 into the bottled medicine bottle 100, the sensor 600 detects the presence of the harmful gas removing device 300 and the exhaust duct 400a and 400b to remove the harmful gas using the harmful gas removing device 300 while the lower side exhaust duct 400b having the blowing fan removes purified clean air from the loading space The upper surface door 220 is brought into contact with the sensor 600 so as to be forcedly blown to the lower side of the harmful gas removing device 300 and the upper surface door 220 by closing the upper surface door 220. [ It is possible to prevent unnecessary power consumption from being consumed by turning off the power supply so that the exhaust ducts 400a and 400b are no longer operated.

A plurality of moving wheels 500 are fixedly installed at a predetermined interval on the lower side (bottom surface) of the cabinet 200 so as to facilitate the movement of the cabinet 200, and the cabinets 200, So that it can be stably moved in the space.

A carrying handle 700 is fixed to the upper side of the rear surface of the cabinet 200 so that the cabinet 200 can be pulled or pushed by the carrying handle 700 so as to be space-moved.

The operation of the closed cashbox cabinet according to the present invention having the above-described structure will be described with reference to FIGS. 4 and 5. FIG.

 FIG. 4 is a view showing a state of use of a closed cash dispenser cabinet according to the present invention. In the case of disposing reagents or medicines whose potency has decreased due to the expiration of the expiration period, The upper surface door 220 of the cabinet 200 is opened so as to be poured into the medicine container 100.

When the inlet 120 of the closed can 100 is closed by the lid 110, that is, in the initial state, the front door 230 is opened to open the upper door 220, The lid 110 closing the injection port 120 of the closed canister 100a is separated and the front door 230 is closed after the funnel 130 is assembled to the injection port 120 in which the lid 110 is separated.

Since the upper surface door 220 of the cabinet 200 is already opened even when the front door 230 is closed, the waste solution of the reagent bottle 900 containing the reagent whose expiration date has passed is passed through the funnel 130, The waste liquid of the reagent bottle 900 to be treated is poured into the funnel 130 and the waste liquid can be stored and stored inside the closed cashbox 100 through the funnel 130. [

Meanwhile, the harmful gas generated when the waste liquid of the reagent bottle 900 is poured into the closed bottle 100 through the funnel 130 is discharged through the exhaust duct 400 connected to the sensor 600 as the upper door 220 is opened The upper side exhaust duct 400a forcibly sucks the air on the upper side of the loading space 210 and the lower side exhaust duct 400b forcibly sucks the air on the upper side of the loading space 201 And blowing the air on the lower side of the air blower to the upper side. At this time, since the waste liquid generated in the reagent bottle and the open canister 100A are opened, the harmful gas generated in the closed canister 300 is exposed to the loading space 210, and then the air is exhausted through the exhaust duct 400, .

Therefore, conventionally, there has been a problem that the waste liquid generated in the reagent bottle 900 and the harmful gas generated in the closed canister 100a flow out to the laboratory. However, the present invention uses the exhaust duct 400 to remove the harmful gas through the forced- By collecting all of them, the laboratory air can be prevented from being contaminated.

Meanwhile, if the packing material funnel lid 222 protruding from the bottom surface of the upper surface door 220 of the cabinet 200 can not tightly close the upper surface of the funnel 130, harmful gas may flow out. At this time, if the height of the funnel lid 222 is arbitrarily adjusted by forward and reverse rotation of the rotary knob 225 formed at the other end of the screw shaft 224 screwed into the upper surface door 220, It is possible to completely close the upper surface portion of the funnel 130 which is seated on the funnel 100 so that the noxious gas can be prevented from flowing out through the clearance.

In addition, a tension spring 226 is provided on the screw shaft 224, which is set once through the length adjustment, so that the screw shaft 224 can be prevented from being unwound arbitrarily.

In the contaminated air, the acid and organic gas are contacted by the water or the liquid injected through the water jet opening, contact of the microparticles due to collision and diffusion of the gas particles and the liquid droplets, The particles are collected through adhesion coagulation of particles, prevention of re-dispersion of collected particles by the liquid film, and increase of particle diameter by condensation.

In the case of the dissolved substance formed by mixing calcium hydroxide or sodium hydroxide or calcium hydroxide and sodium hydroxide in the particle containing the acid and the organic gas, air purified by the organic gas removing filter and the HEPA filter flows through the exhaust duct 400, The process of forced circulation to the lower side of the space 210 is repeated to purify the contaminated air.

The cleaned air is supplied to the lower side of the loading space 210 through the lower side exhaust duct 400b after the contaminated air is supplied to the harmful gas removing device 300, And the purified air is circulated together with the harmful gas again to the upper side exhaust duct 400 to perform a repeated series of operations.

When the upper door 220 is closed after the waste liquid contained in the reagent bottle 900 is completely treated in the closed bottle 100, the funnel lid 222 provided in the upper door 220 is pushed into the funnel 130 So that the noxious gas stored in the syringe barrel 100 is no longer leaked out through the funnel 130.

Therefore, when the funnel 130 is assembled to the closed can 100, that is, when the funnel 130 is left without closing the lid 110 of the closed can 100, before closing the lid 110, However, the present invention has a funnel lid 222 for sealing the upper surface of the funnel 130 so that the noxious gas can be trapped in the funnel 130 It is possible to conveniently use the lid 110 without inconvenience and inconvenience of closing the lid 110 at the injection port 130 at each operation.

The present invention is configured to control the noxious gas removing device 300 and the exhaust ducts 400a and 400b by the upper surface door 220 and the sensor 600 so that the upper surface door 220 is operated only when the upper surface door 220 is opened And the power is turned off so that the upper door 220 is not operated when the upper door 220 is in a closed state, thereby unnecessary power consumption can be reduced.

When the waste medicine bottle 100 in which the waste reagent is stored is moved to the processing place after the completion of the operation, the moving wheel 500 attached to the lower side of the cabinet 200 and the back side upper side transportation handle 700, So that the cabinet 200 can be moved in a stable manner without difficulty.

In addition, since the drawer 250 that slides on the lower side of the cabinet 200 is integrally provided, the present invention can be easily combined with the cabinet 200 without troublesome handling of the broken container or the waste piece 800 It can be archived.

Thus, a preferred embodiment of the closed-box storage cabinet according to the present invention has been disclosed in the drawings and specification. Although specific terms have been employed herein, they are used for purposes of illustration only and are not intended to limit the scope of the invention as defined in the claims or the claims. Therefore, those skilled in the art will appreciate that various modifications and equivalent embodiments are possible without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100, 100a, 100b: closed-loop container 110: lid
120: inlet 130: funnel
135: Water level detector 200: Cabinet
210, 210a, 210b: Loading space 220: Upper door
221, 231, 252: Handle 222: Funnel lid
224: screw shaft 225: rotary knob
226: Tension spring
224, 234: Hinges 230: Front door
240: partition 250: drawer
300: Noxious gas removing device 300a: Organic gas removing filter
300b: Inorganic gas removing filter 400, 400a, 400b:
410: blower fan 500: moving wheel
600: Sensor 700: Carrying handle
800: waste piece 900: reagent bottle

Claims (5)

delete delete A cabinet 200 in which a drawer 250 is installed on the lower side of two loading spaces 210 and 210a and 210b divided into a partition 240 and a cabinet 200 installed on an inner rear portion of the cabinet 200, 400a and 400b connected to the upper and lower sides of the noxious gas removing apparatus 300 and the loading space 210 and 210a and 210b to circulate the air, A moving wheel 500 and a carrying handle 700 laid on the bottom and the rear of the cabinet 200 and a sensor 400 for controlling the noxious gas removing device 300 and the exhaust duct 400, And the exhaust duct 600 is configured to be in contact with the upper surface door 220 to apply power to the harmful gas removing apparatus 300 and the exhaust duct 400 when the upper door 220 is opened,
A funnel lid 222 is provided on the upper surface door 220 of the cabinet 200 to block the upper surface of the funnel 130. The funnel lid 222 is screwed into a screw shaft And a tension spring 226 is attached to the screw shaft 224 to apply a tension between the rotary knob 225 and the upper surface cover 220. The screw shaft 224 is fixed to the screw shaft 224 via a rotary knob 225, (224) is prevented from being unwound arbitrarily. delete delete

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