WO2021054669A1

WO2021054669A1 - Apparatus and method for recovering residual gas in gas container

Info

Publication number: WO2021054669A1
Application number: PCT/KR2020/012151
Authority: WO
Inventors: 우종호
Original assignee: (주)에코플러스
Priority date: 2019-09-19
Filing date: 2020-09-09
Publication date: 2021-03-25
Also published as: KR20210033820A; KR102321435B1

Abstract

The present invention relates to an apparatus and method for recovering residual gas in a gas container, in which a treatment process of removing residual gas from a disposable gas container, which is introduced to recycle a used disposable gas container, and compressing same is automatized, and damage to or deformation of the gas container is determined during the process to separate the gas container, whereby the residual gas can be recovered and reused safely without leakage, and the occurrence of being stuck during transfer can be prevented.

Description

Gas container residual gas recovery device and method

The present invention relates to the treatment of a gas container, and in detail, the process of removing and compressing residual gas from the disposable gas container injected to recycle the used disposable gas container is automated, but the damage or shape change of the gas container is determined during the process. The present invention relates to an apparatus and method for recovering residual gas in a gas container, which can be safely recovered and reused without leakage by separating it, and can prevent jamming during transport.

Disposable gas containers used for portable burners, lamps, heaters, torches, etc. cannot be recharged, so they are discarded after exhaustion of gas, and they are made of metal to withstand the vapor pressure of the contained gas, so they need to be separated for resource recycling. .

Butane gas, which is widely used in Korea as an acceptable gas, has a relatively low vapor pressure, so that a gas container is manufactured with a thin thickness, so that the residual gas can be discharged and compressed relatively easily.

However, due to the fact that sufficient thermal power cannot be expected in thermal power, especially in low-temperature environments, many countries such as North America, Europe, and Australia use propane gas instead of butane, and the gas container is thick and strong due to the high vapor pressure of propane. However, since it is difficult to squeeze, there is a problem that it is not easy to process without going through a specialized processing company.

Therefore, we intend to promote recycling by operating a system that refunds the cost when collecting the gas container by including the cost of recycling the gas container in the selling price of the disposable gas, but using a simple punching tool and a compression press for the gas container treatment company. Due to the situation, there is a problem of promoting air pollution by releasing residual gas into the atmosphere along with the risk of explosion and fire during the perforation. And was accelerating the aforementioned problem.

In recent years, the use of such disposable gas containers is increasing rapidly amid a rapid increase in the camping population due to the improvement of the quality of life. Finding a safe recycling method is becoming an important issue.

The present invention was created to meet the above requirements, and an object of the present invention is to automate the process of removing and compressing residual gas remaining in the disposable gas container to enable continuous treatment to recycle the disposable gas container. It is to do.

Another object of the present invention is to provide a gas container residual gas recovery apparatus and method capable of recovering and reusing residual gas safely and without leakage by judging and separating the gas container by determining damage or shape deformation during the recycling process.

In addition, another object of the present invention is to provide a gas container residual gas recovery apparatus and method capable of preventing jamming of the gas container during the recycling process.

The present invention gas container residual gas recovery method for the above object comprises the steps of: a) seating and fixing the injected gas container at a gas removal position; b) sealing the inner space by closely contacting one side of the cylindrical gas recovery chamber having an inner space and an open one side to the gas container; c) vacuuming the inner space; d) monitoring the vacuum state of the inner space and determining the sealed state; e) drilling a hole in the gas container using a drill as the sealing and vacuum conditions of the inner space are confirmed; f) monitoring the pressure of the internal space while sucking the gas flowing out of the gas container and transferring it to the recovery container; g) stopping the transfer when reaching the set pressure determined as the completion of gas discharge, removing the gas recovery chamber from the gas container, and releasing the fixing; It characterized in that it consists of.

At this time, h) discharging the gas container after step g) and moving it to a compression position; i) compressing the gas container at the compression position through a press and then discharging it; j) releasing and moving the gas container, which is determined not to be sealed in step c), and discharging it without a compression process; It may further include.

In addition, the step a) includes: a-1) dropping and stacking the gas container by inserting it into the inlet, and a-2) pushing the gas container located at the lowest end when stacking to a set level and supplying it to the lower end of the lifting part. And, a-3) raising the supplied gas container to the height of the gas removal position through the lifting part, but the lifting part divides the total height by a set number and sequentially increases one divided section for each driving cycle. Can be done.

In addition, in the step a-3), the entire height is divided by a set number, and a fixing bracket having a first mounting portion into which the gas container is inserted is formed on one side, and is adjacent to the fixing bracket but is the same as the first mounting portion on one side. The gas container may be moved between the first and second holders through forward, upward, backward, and downward driving of the moving bracket on which the second holder is formed in the form of a second holder.

In the present invention, the gas container residual gas recovery and treatment for the above purpose is a gas having an inner space in which a contact member that is in close contact with the gas container supplied to one side through the operation of the support cylinder is formed at the edge of the contact part to have an airtight structure. A recovery chamber, a pressure sensor that measures the pressure in the internal space, a vacuum pump that sucks and discharges air or gas in the internal space, and a drill that makes a hole in the supplied gas container while moving in the internal space through a perforation cylinder A gas removal unit including a; A recovery container connected to the vacuum pump to receive residual gas discharged from the holed gas container; A first determination unit that operates the support cylinder to operate the vacuum pump in a state in which the contact member is in close contact with the gas container, monitors a change in pressure at a time set through the pressure sensor, and determines the sealed state of the inner space; As it is determined to be closed, the drilling cylinder and the drill are driven to make a hole in the gas container, and a second determination unit is provided to monitor pressure changes through the pressure sensor and determine whether residual gas is discharged, and the first determination unit The gas container that is not sealed through the control unit for discharging without drilling; It characterized in that it comprises a.

At this time, a crimping unit having a pair of fixing plates forming a crimping position therebetween, and a crimping plate that moves between the fixing plates through a crimping cylinder and compresses the gas container supplied to the crimping position; A discharge unit having an opening formed below the compression position so that the gas container can pass therethrough, and an opening/closing plate for opening and closing the opening through a discharge cylinder; In addition, the control unit drives the compression cylinder according to the location of the gas container in the compression position, and then opens and discharges the opening/closing plate after compression, but it is determined that the sealing is not made through the first judgment part. The container can be discharged by opening the opening and closing plate without driving the compression cylinder.

In addition, an input unit including an input port into which the gas container is injected, a stacking space in which the injected gas container is stacked, and a supply unit sequentially pushing the gas container located below the stacking space; A lifting unit that raises the gas container discharged from the input unit to the height of the gas removal position, divides the total height by a set number, and sequentially increases one divided section for each driving cycle; It may further include.

In addition, the lifting unit divides the entire height by a set number and includes a fixing bracket having a first mounting part into which the gas container is inserted on one side, and the first mounting part adjoining the fixing bracket and moving forward and backward and descending on one side. The gas container may be moved between the first and second holders by including a moving bracket having the same shape as that of the second holder.

Through the present invention, it is possible to improve the speed while automating the recycling process of the disposable gas container, and by safely and completely recovering and recycling the residual gas, it is possible to obtain many benefits in terms of environmental pollution and recycling of resources.

In particular, because a vacuum is formed around the gas container where the drill is drilled, it is possible to block the risk of explosion, so safe work is possible.If there is any deformation in the gas container such as crushing, it is recognized before drilling, and the gas container is It can prevent the phenomenon of getting caught during transport.

1 is a perspective view showing the appearance of a device according to an embodiment of the present invention,

2 is a flow chart showing a method according to an embodiment of the present invention;

3 is a flow chart showing a gas container input and lift process according to an embodiment of the present invention;

Figure 4 is a side view showing the structure of the input unit according to an embodiment of the present invention,

5 is a perspective view showing the structure of a lifting part according to an embodiment of the present invention,

6 is an operation state diagram of a lifting unit according to an embodiment of the present invention,

7 is a first perspective view showing the structure of a loading part, a gas removal part, and a compression part according to an embodiment of the present invention;

8 is a second perspective view showing the structure of a gas removal unit, a compression unit, and a discharge unit according to an embodiment of the present invention;

9 is a side cross-sectional view showing the structure of a gas removal unit according to an embodiment of the present invention;

10 is an operation state diagram of a gas removal unit according to an embodiment of the present invention;

11 is a perspective view showing the structure of a crimping unit according to an embodiment of the present invention,

12 is a side cross-sectional view showing the structure of a compression unit according to an embodiment of the present invention,

13 is a block diagram showing an electronic configuration and connection relationship according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, the configuration of the gas container residual gas recovery apparatus and method of the present invention will be described in detail.

Since the gas container residual gas recovery method of the present invention is implemented through a separately manufactured gas container residual gas recovery device, a series of methods forming the features of the present invention will be described in connection with the structure of the device.

1 is a perspective view showing the external appearance of an apparatus according to an embodiment of the present invention. The gas container residual gas recovery apparatus for the present invention is coupled to six sides of a frame 700 having an external shape of a hexahedral box, and is partially detachable. It is installed inside the case 710 as possible.

In addition, a wheel 711 may be mounted on the bottom surface to facilitate movement. The frame 700 and the case 710 are basically made of a material that can withstand high temperatures (eg, cast iron), and can withstand unexpected fires or explosions and prevent the spread of fire.

Such a gas container residual gas recovery device includes an input unit 100, a lifting unit 200, a loading unit 300, a gas removal unit 400, a compression unit 500, and a discharge unit 600, It is configured to include the control unit 900.

These configurations are located in the space inside the frame 700, and the mechanical operation part and the electric/electronic control part are basically divided into compartments, and the control part is separate to prevent an explosion accident due to leakage gas. It will be located in the enclosed compartment of.

That is, in the case of the input unit 100, the lifting unit 200, the loading unit 300, the gas removal unit 400, the compression unit 500 and the discharge unit 600 and the recovery container 800 It is located in the same compartment as a mechanical operation part, and the control unit 900 is separated into a separate compartment as a control part to which electricity is supplied. At this time, various cylinders corresponding to the actuators are installed for mechanical driving inside the moving part, and it is preferable that all of them are made of hydraulic cylinders. To this end, a hydraulic pack including a hydraulic tank, a hydraulic pump, and a plurality of hydraulic valves is installed in the compartment in which the control unit 900 is located. This is to fundamentally block explosions caused by sparks even if gas leakage occurs by applying hydraulic pressure to each cylinder at a location separated by a compartment.

The inlet unit 100 includes an inlet 110 on the upper part of the case 710 coupled to the frame 700 so that the gas container can be injected, and the inlet 110 is an outer periphery of the gas container to be processed. It is formed slightly larger so that the gas container can be injected in the longitudinal direction.

4 is a side view showing the structure of an injection unit according to an embodiment of the present invention.

The present invention is basically configured to process a plurality of gas containers continuously, so that a plurality of gas containers can be stacked therein, and an input port 110 is formed on the upper part of the case 710 so that the injected gas container is It falls and is stacked in the receiving space 130 installed inside the frame 700.

The receiving space 130 is sequentially stacked in a form in which a gas container is inserted between a pair of inner panels 160, that is, in a laid-down state. Since it cannot be achieved, a plurality of guide rollers 120 for aligning them are properly coupled to the inner panel 160.

That is, each of the guide rollers 120 protrudes in a zigzag direction inside the inner panel 160 so that the gas container does not fall vertically, but shakes left and right, aligns the posture, and lowers the falling speed of the gas container. Make sure the containers are all in the same orientation and can be dropped and stacked.

A supply unit 140 for sequentially supplying a gas container located at the lowermost portion of the stacked gas containers to the lifting unit 200 is coupled to a lower portion of the inner panel 160.

The supply unit 140 accommodates the gas container from the upper side, but has a cut-out part 141 opened to one side, and pushes the supply part 140 to one side from the other side where the cut-out part 141 is not opened. A supply cylinder 150 for discharging the gas container from the inner panel 160 is connected.

That is, the supply cylinder 150 reciprocates the supply unit 140 in the lateral direction and is located at the lowermost side of the inner panel 160 to push and discharge the gas container located in the cutout 141, and the cutout 141 ) Through the open side of the gas container is configured to be sequentially entered into the lifting unit (200).

5 is a perspective view showing the structure of a lifting unit according to an embodiment of the present invention.

The lifting part 200 functions to receive and raise the injected gas container and transfer it to the upper loading part 300. In the automatic processing of a plurality of gas containers, the lifting part 200 is used for removing residual gas and compressing the gas container. It plays a role for efficient process progress and space utilization.

The gas container discharged from the inlet unit 100 may be vertically raised to the loading unit 300 at a time, but in this case, the length of the cylinder for ascent is inevitably increased, and in particular, it is relatively increased compared to the size of the gas container. As the height becomes longer, there is a high risk of jamming due to vibration or shaking. Accordingly, in the present invention, the total height for ascent is not raised at once, but the distance is divided and raised sequentially so that jamming does not occur.

First, the entire height is divided by a set number, and a fixing bracket 210 having a first mounting portion 211 into which the gas container is inserted into one side is installed side by side. At this time, the first holder 211 is facing the input unit 100 and the first holder 211 at the lower end faces the supply unit 140, so that the gas container C discharged through the supply unit 140 Will be supplied.

Substantially, the first mounting part 211 is a semicircular groove corresponding to the outer circumferential surface of the gas container C, so that the gas container accommodated in the first mounting part 211 does not come out randomly, the fixing bracket 210 is It is installed to have an upward slope in the opposite direction in which the mounting portion 211 is formed. In the accompanying drawings, as a preferred embodiment, the eight first cradles 211 are formed at regular intervals in the vertical direction, but the present invention is not limited thereto, and the number of the first cradles 211 can be appropriately adjusted according to the total elevation height. .

On the side of the fixing bracket 210, a moving bracket 220 having a second mounting portion 221 having the same shape as the first mounting portion 211 is disposed. The moving bracket 220 is a structure that serves to receive the gas container mounted on the fixing bracket 210 and raise it step by step. The movable bracket 220 has an inclination in the same direction as the first mounting part 211 so that the gas container accommodated in the second mounting part 221 does not deviate arbitrarily. In addition, a forward and backward cylinder 230 and an elevation cylinder 240 are connected to the movable bracket 220 so as to move forward and backward and move up and down adjacent to the fixing bracket 210.

At this time, the fixing bracket 210 and the moving bracket 220 have an appropriate width corresponding to the longitudinal direction of the gas container so that the gas container is stably positioned on the first and second mounting

parts

211 and 221, respectively. And, preferably, the plate-shaped brackets of the same shape are arranged in parallel at appropriate intervals.

In the accompanying drawings, a pair of fixing brackets 210 installed with a relatively small width is in the middle, and a pair of moving brackets 220 are arranged on both sides of the fixing bracket 210 and connected to the other side. . On the same principle, it is obvious that the same effect can be obtained by implementing a pair of moving brackets installed with a relatively small width in the middle and a pair of fixing brackets arranged on both sides of the moving bracket and connected to the other side.

6 is an operation state diagram of a lifting unit according to an embodiment of the present invention.

6(a) shows a state in which one gas container C is supplied and inserted through the supply part 140 to the first mounting part 211 located at the lower end of the fixing bracket 210. In this way, when the gas container is supplied from the input unit 100 through the supply unit 140, the moving bracket 220 is in an initial position moved downward to the other side of the fixing bracket 210.

6(b) shows a state in which the forward and backward cylinder 230 is operated and the moving bracket 220 is horizontally moved to one side, and at this time, located at the first mounting part 211 at the lower end of the fixing bracket 210 The gas container (C) is moved to the second mounting portion (221) located at the bottom of the moving bracket (220).

6(c) shows a state in which the lifting cylinder 240 operates and the moving bracket 220 vertically rises, and the height of the lifting corresponds to the distance between the first mounting part 211 (or the second mounting part). Becomes the height.

6(d) shows a state in which the moving bracket 220 in an elevated state has moved horizontally to the other side through the forward and backward cylinder 230, and through this movement, the second cradle located at the bottom of the moving bracket 220 The gas container (C) placed on the 221 is moved from the lower end of the fixing bracket 210 to the second first mounting portion 211 and is substantially raised by one space by the height between the first mounting portions 211.

6(e) shows a state in which the moving bracket 220 vertically descends through the lifting cylinder 240 and moved to the initial position. Through the above-described operation, one cycle for raising the gas container is completed. Thereafter, the gas container is supplied to the empty first mounting part 211 at the lower end of the fixing bracket 210 through the supply part 140.

The lifting cylinder 240 is connected to the other side of the moving bracket 220 so that the forward and backward cylinders 230 are installed so that all of them can be lifted and lowered so that such a series of procedures proceed smoothly. In addition, in order to prevent interference with other structures due to the movement of the moving bracket 220 during smooth lifting of the gas container in the lifting unit 200 of the above-described structure, the number of the second mounting portions 221 is the first mounting. It should be noted that the configuration is made one less than the number of parts 211.

In addition, for convenience of understanding, one gas container is supplied to the lower end of the fixing bracket 210. In this case, in order to raise the gas container to the first cradle at the top, the above-described transfer operation is performed in 7 cycles. It has to be done, so you can feel that it takes longer than the one-time posting method.

However, this is only for the initial operation, and in a state in which the gas containers are substantially inserted into all of the first holders 211 provided in the fixing bracket 210, 7 gas containers are driven by one cycle of the movable bracket 220. As is rising at the same time, the slowdown of the entire treatment process is not significant.

7 is a first perspective view showing the structure of a loading part, a gas removal part, and a compression part according to an embodiment of the present invention. The loading part 300 functions to load the gas container raised through the lifting part 200 to a gas removal position. In addition, the loading unit 300 also serves to push the gas container from which the gas has been removed from the gas removal position through the newly loaded gas container and supply it to the compression unit 500.

The loading part 300 is fixed to the upper end of the gas removal part 400, and forms a path to the gas removal position of the gas removal part 400 by moving the gas container horizontally from the upper end of the lifting part 200. A transfer rail 310, a moving mover 330 moving along the transfer rail 310, a loading cylinder 320 moving the mover while changing its length in the direction of the transfer rail 310, and the mover 330 ) Is coupled to the gas container and is composed of a sealing plate 340 in contact with the gas container.

In this loading unit 300, the mover 330 to which the pushing plate 340 is connected moves along the transfer rail 310, and moves the gas container horizontally from the top of the lifting unit 200 to the gas removal unit 400. Supply to the gas removal location.

8 is a second perspective view showing the structure of a gas removal unit, a compression unit, and a discharge unit according to an embodiment of the present invention, FIG. 9 is a side cross-sectional view showing the structure of a gas removal unit according to an embodiment of the present invention, and FIG. It is an operation state diagram of a gas removal unit according to an embodiment of the present invention.

As shown in FIGS. 8 and 9, the gas removal unit 400 temporarily fixes the gas container loaded through the loading unit 300 to remove the gas therein.

The gas removal unit 400 is provided with a pair of seating structures 401 for supporting the gas container supplied at a set distance to receive the gas container pushed through the loading unit 300. That is, the seating structure 401 is formed in the same direction as the transfer rail 310 of the loading unit 300 so that the gas container supplied through the loading unit 300 enters and seats as it is, and the gas removal position upwards To form.

At this time, a close contact member 410 in which the first through hole 411 is formed in close contact with the supplied gas container but perpendicular to the gas container, and an inner space 421 of a sealed structure communicating with the first through hole 411 A cylindrical gas recovery chamber 420 formed with a discharge line 423 connecting the inner space 421 to the outside and a second through hole 422 formed in the same direction as the first through hole 411 Is made up of one piece.

A support plate that supports and compresses the gas container above the gas removal position so that the inner space is sealed when the contact member 410 and the gas recovery chamber 420 are located below the gas removal position and are compressed to the lower side of the gas container. (440) is located. As the support plate 440 is configured to elevate and descend through the support cylinder 430, the gas container at the gas removal position is pressed through the support plate 440 on the upper side and is brought into close contact with the adhesion member 410 on the lower side. The gas container may be fixed during the sealing of 421 and the removal of gas.

At this time, a pressure sensor 460 for measuring pressure is installed in the inner space 421, and a vacuum pump 450 that is in communication with the discharge line 423 and sucks and discharges air or gas from the inner space 421 is provided. It is equipped.

In addition, a drill 470 that moves along the first through hole 411 and the second through hole 422 through the perforation cylinder 490 and drills a hole in the supplied gas container is installed. A relatively thin gas container, such as a butane gas container, can be easily punched through a sharp or sharp tool, but the propane gas container, which is the subject of the present invention, is not easy to punch due to its thickness, and the perforation around the hole is crushed during the punching process. A gap may be generated between the members 410, so that gas or air may leak.

Accordingly, in the present invention, when the internal space 421 is closed by contact with the gas container, the drill 470 rotating through the hydraulic motor is lifted and the hole is made to maintain the closed state, and the residual gas can be removed. have.

At this time, it is necessary to install various types of seal members 480 including mechanical seals at the contact part between the second through hole 422 and the drill to prevent outflow or inflow of gas or air through the second through hole 422 There is.

The discharge line 423 and the vacuum pump 450 are connected to the recovery container 800 for receiving the residual gas discharged from the perforated gas container, so that the total number of residual gas is achieved, and to the discharge side of the vacuum pump 450 A switching valve 451 may be installed to discharge air sucked from the internal space 421 to the outside and allow residual gas discharged from the gas container to be introduced into the recovery container 800.

11 is a perspective view showing the structure of a crimping unit according to an embodiment of the present invention, and Fig. 12 is a side cross-sectional view showing the structure of a crimping unit according to an embodiment of the present invention.

The compression unit 500 basically serves to receive the gas container from which the gas has been removed through the gas removal unit 400 and presses the gas container, and the gas placed at the gas removal position through the loading unit 300 It is placed on the drop line of the gas container from which the gas has been removed so that the container is pushed down and supplied.

The compression unit 500 is a structure of a conventional hydraulic press, and includes two fixing plates 510 and a compression plate 520 for compressing a gas container by a compression cylinder 521.

At this time, the crimping part 500 is formed with an inlet part 530 for inflow of the gas container falling above the two fixing plates 510 to form a crimping position between the pair of fixing plates 510, and a crimping position at the bottom. There is a discharge part that discharges the gas container in the lower side.

The discharge part 600 constitutes a lower part of the compression position and includes a discharge plate 610 for supporting the gas container. The discharge plate 610 has an opening 611 formed under the compression position so that the gas container can pass therethrough, and an opening/closing plate 612 for opening and closing the opening 611 through the discharge cylinder 620 is provided. .

13 is a block diagram showing an electronic configuration and connection relationship according to an embodiment of the present invention. As mentioned above, in the present invention, most operations are performed through a cylinder, that is, a hydraulic cylinder, which is an actuator, and the drill is also made of a hydraulic drill, and there is no electric/electronic configuration in a region where gas leakage is possible.

The control unit 900 substantially controls the hydraulic pack to provide the above-described cylinder, specifically, the supply cylinder 150, the forward and backward cylinder 230, the lifting cylinder 240, the loading cylinder 320, and the support cylinder. Controls the operation of the drill 470 rotating in a hydraulic manner as 430, a drilling cylinder 490, a compression cylinder 521, and a discharge cylinder 620 whose length is adjusted to generate movement. It is done.

Basically, as the gas container is introduced through the inlet 110, the input unit 100, the lifting unit 200, the loading unit 300, the gas removal unit 400, the compression unit 500, and the discharge unit ( Each cylinder is controlled according to a programmed procedure so that it can be sequentially moved up to 600), and in particular, gas removal and compression work directly related to safety are performed by the first and second determination units 910 and 920. ) Through detailed control.

As the gas container is seated in the gas removal position, the support cylinder 430 is operated to operate the vacuum pump 450 while the contact member 410 is in close contact with the gas container C. The first determination unit 910 monitors the pressure change in the inner space 421 during a set time through the pressure sensor 460 and determines the closed state of the inner space 421.

As the sealing state is determined through the first determination unit 910, the drilling cylinder 490 and the drill 470 are sequentially driven to make a hole in the gas container. It is discharged to the inner space 421.

At this time, the second determination unit 920 monitors the pressure change through the pressure sensor 460 and determines whether or not the residual gas is discharged. That is, while the residual gas is discharged, the pressure in the internal space 421 increases or the pressure decrease is limited, and after the residual gas is discharged, the pressure decreases continuously to the vacuum level. It compares and judges the completion of the discharge of the residual gas.

At this time, the gas container determined that the sealed state is not achieved through the first determination unit 910, that is, the vacuum is not performed for a certain period of time, is likely to leak when drilling into the gas container in which damage such as crushing has occurred. Because it is large, it is moved to the crimping part 500 without drilling. That is, the support plate 440 is lifted through the support cylinder 430 to release the fixed state of the gas container, and a new gas container is supplied through the loading unit 300, and the damaged gas container at the gas removal position is pushed out.

In addition, the control unit 800 basically controls to open and discharge the opening/closing plate 612 after driving and compressing the compression cylinder 521 as the gas container from which the residual gas has been removed is located at the compression position. The gas container determined that the sealing is not made through the first determination unit 910 has an internal residual gas, so that the opening and closing plate 612 is opened without driving the compression cylinder 521 so that it is immediately discharged without a compression operation. Control.

At this time, when an uncompressed gas container is discharged, it is desirable to operate an alarm unit 930 including a warning lamp or a siren so that the administrator can recognize this and handle the discharged gas container separately, and the gas container that has been compressed is discharged. It can be accommodated in a separate storage space located below the unit 600.

Hereinafter, the operation of the gas container residual gas recovery method according to the present invention will be described. Since the series of processes described is based on the basic premise that the gas container residual gas recovery device mentioned above is performed, those skilled in the art can easily understand that each step described is performed through a control process through a control unit as well as the above-described corresponding configuration. I will be able to.

Figure 2 is a flow chart showing a method according to an embodiment of the present invention, 3 is a flow chart showing a gas container input and lift process according to an embodiment of the present invention.

First, a) is the step of seating and fixing the injected gas container at the gas removal position.After the user inserts the gas container through the inlet 110, the above-described input unit 100, the lifting unit 200, and the loading unit ( 300), the gas container is seated and fixed at the gas control position located in the gas removal unit 400.

The step a) is specifically a-1) a step of dropping and stacking by inserting a gas container into the inlet 110, and a-2) pushing the gas container located at the lowest end when stacking to a set level to lift the lifting unit 200 ), and a-3) raising the supplied gas container to the height of the gas removal position through the lifting part 200.

That is, after step a-1) is performed through the above-described input unit 100, step a-2) is performed through the supply unit 140, and step a-3) is performed through the lifting unit 200.

In step a-3), the lifting unit 200 divides the total height by a set number and sequentially increases one divided section for each driving cycle. Specifically, the structure of the lifting part 200 described above, that is, the entire height is divided by a set number, and a fixing bracket having a first mounting part 211 into which the gas container is inserted into one side is formed, and adjacent to the fixing bracket 210 However, on one side, the first holder 211 and the first holder 211 and the first holder 211 and the first holder 211 and the first holder 211 and the first holder 211 and the first holder 211 and the first holder 211 and the first holder 211 and the first holder 211 and the first holder 211 and the first holder 211 and the first holder 211 and the first holder 211 and the first holder 211 and the first holder to move forward, upward, backward, and descend through the moving bracket 220 on one side, It is achieved through an operation performed by moving the gas container between the two cradles 221.

In this way, the gas container that has risen to the target height through the lifting part 200 is supplied to the gas removal position through the loading part 300.

Then, b) a step of sealing the inner space by bringing one side of the cylindrical gas recovery chamber with an inner space open and one side into close contact with the gas container is performed.

As mentioned above, the support plate 440 at the upper side of the gas removal position is pressed downward through the support cylinder 430 to pressurize the lower gas container, but the gas recovery chamber 420 and the gas container ( C) is in close contact and the inner space 421 is sealed.

Thereafter, in the step of c) vacuuming the inner space, a vacuum pump is operated to suck air through a discharge line connected to the inner space to create a vacuum state.

Next d) In the step of monitoring the vacuum state of the inner space and determining the sealed state, the pressure drop state of the inner space 421 during operation of the vacuum pump 450 through the pressure sensor 460 installed in the inner space 421 Monitor. At this time, when a vacuum is smoothly formed in the internal space 421, it is determined as a closed state, and when a vacuum is not formed, it is determined that it is not a closed state.

Next is the step of drilling a hole in the gas container using a drill as the sealing and vacuum state of the inner space is confirmed, and as the inner space 421 is confirmed to be closed in step d), the hydraulic method By operating the drill 470 and the drilling cylinder 490, a hole is made in the wall surface of the gas container in contact with the inner space 421. At this time, even if there is a risk of sparking due to friction due to the fact that the rotating blade of the gas container (C) and the drill 470 is made of metal, fire or explosion is prevented as the internal space 421 is continuously maintained in a vacuum state. .

Next, f) monitoring the pressure of the internal space while sucking the gas flowing out of the gas container and transferring it to the recovery container, and discharged from the gas container by continuously operating the vacuum pump 450 to the internal space ( The gas flowing into 421) is transferred to the recovery container.

Next g) In the step of stopping the transfer when reaching the set pressure determined as the completion of gas discharge and removing the gas recovery chamber from the gas container and releasing the fixing, the detection result of the pressure sensor 460 installed in the inner space 421 is determined. If it is continuously monitored and it is determined that gas discharge from the gas container is complete, the operation of the vacuum pump is stopped and the vacuum in the inner space 421 is released, and the fixing of the gas container is released by driving the support cylinder. .

Through this control step, even if the amount of residual gas in the gas container to be treated is different, complete discharge can be achieved.

In the next step h), the gas container that has been completed in step g) is discharged and moved to the compression position. As mentioned above, as the gas container in the next waiting state is pushed to the gas removal position through the loading unit 300, the gas container in which the residual gas has been removed is pushed out and falls to the compression position at the lower side.

Thereafter, through the compression unit 500 and the discharge unit 600, i) a step of compressing the gas container at the compression position through a press and then discharging is performed.

If it is determined that the sealed state is not maintained in step c), the compression process is skipped, j) the fixing of the gas container from the gas control position is released, and the step of discharging without the compression process is performed.

The rights of the present invention are not limited to the embodiments described above and are defined by what is described in the claims, and that a person having ordinary knowledge in the field of the present invention can make various modifications and adaptations within the scope of the rights described in the claims. It is self-explanatory.

Claims

a) seating and fixing the injected gas container at the gas removal position;

b) sealing the inner space by closely contacting one side of the cylindrical gas recovery chamber having an inner space and an open one side to the gas container;

c) vacuuming the inner space;

d) monitoring the vacuum state of the inner space and determining the sealed state;

e) drilling a hole in the gas container using a drill as the sealing and vacuum conditions of the inner space are confirmed;

f) monitoring the pressure of the internal space while sucking the gas flowing out of the gas container and transferring it to the recovery container;

g) stopping the transfer when reaching the set pressure determined as the completion of gas discharge, removing the gas recovery chamber from the gas container, and releasing the fixing; Gas container residual gas recovery method, characterized in that consisting of.
The method of claim 1,

h) discharging the gas container after step g) and moving it to a compression position;

i) compressing the gas container at the compression position through a press and then discharging it;

j) releasing and moving the gas container, which is determined not to be sealed in step c), and discharging it without a compression process; Gas container residual gas recovery method, characterized in that it further comprises.
The method of claim 1,

The step a),

a-1) dropping and stacking by inserting a gas container into the inlet,

a-2) When stacking at a set level, pushing the gas container located at the lowest end and supplying it to the bottom of the lifting part; and

a-3) raising the supplied gas container to the height of the gas removal position through the lifting part, the lifting part dividing the total height by a set number, and sequentially raising one divided section for each driving cycle. Gas container residual gas recovery method, characterized in that.
The method of claim 3,

Step a-3),

Dividing the overall height by a set number and forming a first mounting portion into which the gas container is inserted on one side, and a moving bracket adjacent to the fixing bracket but having a second mounting portion having the same shape as the first mounting portion on one side. A gas container residual gas recovery method, characterized in that the gas container is moved between the first and second mounting portions through forward, upward, backward, and downward driving.
A gas recovery chamber having an inner space formed in a closed structure by forming a contact member in close contact with the gas container supplied to one side through the operation of the support cylinder, a pressure sensor measuring the pressure in the inner space, the A gas removal unit including a vacuum pump for suctioning and discharging air or gas in the internal space, and a drill for making a hole in the supplied gas container while moving in the internal space through a perforation cylinder;

A recovery container connected to the vacuum pump to receive residual gas discharged from the holed gas container;

A first determination unit that operates the support cylinder to operate the vacuum pump in a state in which the contact member is in close contact with the gas container, monitors a change in pressure at a time set through the pressure sensor, and determines the sealed state of the inner space; According to the determination as a closed state, the drilling cylinder and the drill are driven to make a hole in the gas container, and a second determination unit for monitoring pressure changes through the pressure sensor and determining whether residual gas is discharged, and the first determination unit Gas container residual gas recovery apparatus comprising a; control unit for discharging the gas container through which the closed state is not made without drilling.
The method of claim 5,

A crimping unit including a pair of fixing plates forming a crimping position therebetween, and a crimping plate that moves between the fixing plates through a crimping cylinder and compresses the gas container supplied to the crimping position;

A discharge unit having an opening formed below the compression position so that the gas container can pass, and an opening/closing plate for opening and closing the opening through a discharge cylinder; further comprising,

The control unit drives the compression cylinder according to the location of the gas container at the compression position, and then opens and discharges the opening and closing plate. A gas container residual gas recovery device, characterized in that the opening and closing plate is opened and discharged without driving.
The method of claim 5

An injection unit including an inlet into which the gas container is injected, a stacking space in which the injected gas container is stacked, and a supply unit sequentially pushing the gas container located below the stacking space;

And a lifting unit that raises the gas container discharged from the input unit to the height of the gas removal position, divides the total height by a set number, and sequentially increases one divided section for each driving cycle; characterized in that it further comprises Gas container residual gas recovery device.
The method of claim 7,

The lifting part,

The entire height is divided by a set number, and a fixing bracket having a first fixing part into which the gas container is inserted, and a second fixing bracket having the same shape as the first fixing part while adjoining the fixing bracket and moving up and down. A gas container residual gas recovery device, characterized in that the gas container is moved between the first mounting part and the second mounting part, including a moving bracket having a mounting part formed thereon.