KR101957762B1 - Preprocessing apparatus for rock sample - Google Patents

Abstract

The present invention relates to a rock sample preprocessing device, comprising a housing having a sealed structure, a door provided at one side of the housing so as to open or close the housing, a holder which can be provided inside the housing and on which a plurality of vials for accommodating samples are mounted, a heater connected to the holder and heating the vials to a set temperature, a discharge part for discharging the internal air of the housing to the outside while allowing the inside and the outside of the housing to communicate with each other, a supply part for supplying external air to the inside of the housing while allowing the inside and the outside of the housing to communicate with each other, a purification filter provided in the supply part so as to purify the external air introduced into the supply part, and a blocking member provided at the upper portion of the holder and excluding mutual interference of rock samples due to heating of the vials. According to the present invention having the structure, the rock sample preprocessing device is provided for lowering the bottom value of the rock samples through the preprocessing operation for measuring the type or content of an isotope or a particular component of the rock samples, impurities introduced from the outside can be removed, and the mutual influences between the rock samples can be excluded, such that a more precise preprocessing operation can be performed. In addition, the flow rate of the discharged gas can be adjusted gradually such that the discharge of a required gas can be induced at a specific position according to the progress of the process.

Description

[0001] PREPROCESSING APPARATUS FOR ROCK SAMPLE [0002]

[0001] The present invention relates to a pretreatment apparatus for a rock sample, and more particularly, to a pretreatment apparatus for a rock ionization mass spectrometer (TIMS) And a pretreatment device.

In general, a precise pretreatment of the rock samples is required to analyze the content of elements contained in the rock samples. In order to analyze the content of trace elements in rock samples, it is important to lower the bottom value. In order to lower the bottom value, pretreatment of the rock samples must be done in the clean room and use high purity reagents and water do.

For acid decomposition of rock samples, rock samples and mixed acid (hydrofluoric acid + nitric acid or perchloric acid) are put into a vial made of Teflon, then the lid is closed and then heated at 120 ° C for 12 hours or more. The lid is then opened and the sample is allowed to dry completely at 120 ° C for 12 hours, at 165 ° C for 12 hours and at 195 ° C. The dry samples are dissolved in hydrochloric acid or nitric acid and used for the analysis of elemental content of rock samples.

Since the above method has a problem of drying a rock sample at a high temperature for a considerably long period of time, if several samples are simultaneously treated in a limited space, contamination may occur between the samples.

In addition, toxic gas may be generated in the acid decomposition process of the rock sample, and the toxic gas may be fatal to the health of the experimenter. It is necessary to discharge the toxic gas to the outside. When air is filled in the outside as much as the discharged toxic gas, impurities contained in the air may be introduced into the rock sample depending on the experimental environment, so that it is difficult to measure accurate experimental data have.

In the process of pretreatment of rock samples, a plurality of vials containing rock samples are used at the same time. During the acid decomposition process of the rock samples, the rock samples are dried at a high temperature for a long time, Frequent cases. There is a problem that it is difficult to produce the vial having different heights for each sample type.

(Document 001) Korean Patent No. 10-1453422 (Registered on October 15, 2014) Korean Patent Laid-Open No. 10-2012-0127094 (published on November 21, 2012). (Document 003) Japanese Patent Laid-Open No. P2011-106873A (Published date: June 2, 2011)

It is an object of the present invention, which has been made in view of the above, to provide a pretreatment apparatus for a rock sample which prevents impurities from entering a rock sample so that a precise and easy test can be performed in a pretreatment process for lowering the bottom value of the rock sample.

In addition, it is an object of the present invention to provide a pretreatment apparatus for a rock sample which has durability in a long period of acid decomposition and drying process and which is easy to process stepwise.

The apparatus for pretreating a rock sample according to an embodiment of the present invention includes a housing having a closed structure, a door provided on one side of the housing for opening and closing the housing, a plurality of vials accommodating the sample, A heater for heating the vial to a predetermined temperature, a discharge unit for communicating the inside and the outside of the housing to the outside while discharging the inside air of the housing to the outside, and supplying the outside air to the inside of the housing while communicating the inside and the outside of the housing And a blocking member provided at a top of the cradle for eliminating mutual interference of the rock samples due to the heating of the vial.

The apparatus may further include an air discharging device connected to the discharging portion and forcibly discharging the air inside the housing to the outside.

The air conditioner may further include an air supply device connected to the supply unit for forcibly supplying the outside air to the inside of the housing.

Further, the supplying unit or the discharging unit may be provided with a heat insulating member for preventing the heat inside the housing from being discharged to the outside.

Further, the housing, the holder, and the blocking member may be formed of Teflon.

The apparatus may further include a discharge control plate for gradually adjusting the internal air of the housing moved to the discharge portion.

The discharge control plate may include a plurality of communication holes formed in a predetermined array along the height direction of the housing and formed to penetrate the discharge control plate, and a blocking plate for blocking a part or all of the communication holes in a stepwise manner.

In addition, the blocking members are formed in a plurality of corresponding to each vial, and have a cylindrical shape extending in the height direction, and a mesh network may be provided on the upper portion.

In addition, the housing may be a double structure including an inner housing and an outer housing.

According to the embodiment of the present invention, since the outside air is filtered through the filter and introduced into the housing, it is possible to eliminate the influence of impurities contained in the air on the rock sample, so that it is easier to lower the bottom value of the rock sample.

In addition, it is possible to control the discharge of the internal air of the housing stepwise in the course of long acid decomposition and drying.

Also provided is a device that ensures durability required in high temperature and acid environments.

1 is a perspective view illustrating a pretreatment apparatus for a rock sample according to an embodiment of the present invention.
2 is a side cross-sectional view of a pretreatment apparatus for a rock sample according to an embodiment of the present invention.
3 is a detailed view showing a holder and a blocking member according to an embodiment of the present invention.
4 and 5 are perspective views illustrating a discharge control plate according to an embodiment of the present invention.
6 is a perspective view illustrating a pretreatment apparatus for a rock sample comprising an inner housing and an outer housing according to an embodiment of the present invention.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

Embodiments in accordance with the concepts of the present invention can make various changes and have various forms, so that specific embodiments are illustrated in the drawings and described in detail in this specification or application. It should be understood, however, that the embodiments according to the concepts of the present invention are not intended to be limited to any particular mode of disclosure, but rather all variations, equivalents, and alternatives falling within the spirit and scope of the present invention.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having", etc. are intended to specify the presence of stated features, integers, steps, operations, elements, parts or combinations thereof, But do not preclude the presence or addition of steps, operations, elements, parts, or combinations thereof.

Hereinafter, the present invention will be described in detail.

In the present invention, a rock sample pretreatment apparatus is provided in which a plurality of rock samples are placed in vials and the vials are decomposed and heated by acid to lower the bottom value of the rock samples. By using the rock sample pretreatment apparatus of the present invention, the bottom value of the rock sample is lowered, and the thermal ionization mass spectrometer (TIMS) is used to more precisely measure the consumption and amount of the elements contained in the rock sample can do.

 FIG. 1 is a perspective view showing a pretreatment apparatus for a rock sample according to an embodiment of the present invention, and FIG. 2 is a side sectional view showing a pretreatment apparatus for a rock sample according to an embodiment of the present invention.

1 and 2, a pretreatment apparatus for a rock sample according to an embodiment of the present invention includes a housing 100 having a closed structure, a door 100 provided at one side of the housing 100, The vial 300 can be installed inside the housing 100 and includes a plurality of vials for receiving a sample. The vial 300 is connected to the holder 300, A discharge unit 120 for discharging the internal air of the housing 100 to the outside while communicating the inside and the outside of the housing 100 with the heater 100 and the inside and outside of the housing 100, A purifying filter 141 provided in the supplying part 140 and purifying the outside air flowing into the supplying part 140 and a purifying filter 141 provided in the upper part of the receiving part 140 And the rock is heated upon heating of the vial In comprises a blocking member (310) to preclude mutual interference.

It is preferable that the housing 100 has a closed structure and the air inside the housing 100 is only moved through the discharge unit 120 and the supply unit 140. The housing 100 has a rectangular parallelepiped shape or a cuboid shape in the embodiment of the present invention, but is not limited to a specific shape as long as the holder 300 and the heater 400 can be accommodated therein.

A door 110 is provided at one side of the housing 100 to open / close a part of the housing 100. The cradle 300 may be received in the housing 100 through the door 110 and the cradle 300 may be coupled to the first housing 100 while being detached from the first housing 100. The door 110 is preferably made of a material having transparency and excellent fire resistance so that the inside of the first housing 100 is exposed to the inside of the housing 100. In this case, It is possible to visually confirm the pretreatment process of the rock samples in the interior.

A sealing member may be coupled to an end of the door 110, and the sealing member may be formed of a material having excellent fire resistance and corrosion resistance.

The heater 400 of the present invention is provided at a lower portion of the housing 100 and is connected to the cradle 300 to heat the vial received in the cradle 300. The heater 400 is preferably capable of maintaining the set temperature for a predetermined time. In the present invention, the heater 400 heats the vial containing the rock sample at 120 to 195 ° C for about 12 hours. The acid is decomposed by decomposing the rock sample into acid, The temperature of the inside of the substrate can be heated to 120 ° C, 165 ° C, and 195 ° C, respectively, and the heating time may vary. The heater 400 may be fabricated independently of the housing 100, and assembled together as a single assembly.

In an embodiment of the present invention, the housing 100, the holder 300, the blocking member 310, the vial, and the like may be formed of a teflon material to withstand the heating temperature described above. In this case, the utilization of the Teflon material makes it possible to perform the operation in a stable and precise pre-processing environment due to characteristics of chemical inertness, heat resistance, non-stickiness, insulation stability, etc. of Teflon.

FIG. 3 is a detailed view showing the holder 300 and the blocking member 310 according to an embodiment of the present invention.

Referring to FIG. 3, the cradle 300 receives a plurality of vials containing the rock sample, and the vial 300 is received in the housing 100 in a state where the vial is stationary.

The holder 300 may be provided on the heater 400 and may be detachably coupled to the housing 100. A first rail 303 is formed along the longitudinal direction on both sides of the cradle 300 in the embodiment of the present invention and the rail is coupled to both sides of the inside of the housing 100 A second rail 101 may be provided. In order to place the cradle 300 inside the housing 100, the first rail 303 is mounted on the second rail 101 while the cradle 300 is moved. In another embodiment of the present invention, a plurality of columns extending in the height direction are coupled to the lower portion of the cradle 300, the lower portion of the column is fixed to the inner bottom of the housing 100, 300 may be supported. In addition to the example described above, the combination of the holder 300 and the housing 100 may have various configurations.

The mounting table 300 is provided with a mounting hole 301 in which the vial is mounted, and the mounting hole 301 is formed in a vertical direction and may have a constant diameter.

The cradle 300 has a double structure in which the cradle 300 is divided into an upper portion and a lower portion. The cradle hole 301 provided at the lower portion of the cradle 300 and the cradle hole 301 provided at the upper portion of the cradle 300 have a diameter In this case, the vial is supported in its own weight by a mounting hole 301 provided at a lower portion of the mounting base 300, and is horizontally deviated by a mounting hole 301 provided at an upper portion of the mounting base 300. Is prevented. For this purpose, it is preferable that the diameter of the embossing hole 301 provided above the lower portion of the cradle 300 is larger.

In the present invention, the blocking member 310 may be coupled to the upper portion of the cradle 300. The blocking member 310 has a cylindrical shape extending in the height direction, and prevents the detachment of the rock sample contained in the vial while contacting the upper end of the cradle 300. Since the rock sample is dried by decomposition and heating, part of the rock sample can be released to the outside of the vial. In the present invention, interference between rock samples is eliminated through the blocking member 310, .

The blocking member 310 may be formed of a Teflon material. In order to smoothly discharge the gas generated when the rock sample accommodated in the vial is decomposed by acid, the upper part may communicate with the mesh member 311, Respectively.

The blocking member 310 having the shape of the mesh 311 prevents the debris of the rock sample from escaping and freely passes the gas generated when the rock sample is decomposed by acid, The influence can be eliminated.

The lower end of the blocking member 310 and the upper end of the cradle 300 may be detachably coupled to each other. A fixing protrusion 312 may be provided at a lower portion of the blocking member 310 and a fixing groove 302 may be formed at an upper portion of the mounting base 300 to be coupled with the fixing protrusion 312. The fixing protrusion 312 and the fixing groove 302 are coupled to each other to prevent the blocking member 310 from being detached from the mounting table 300. Although the present invention has been described in connection with the fixing protrusion 312 and the fixing groove 302, the fixing structure may be modified into various structures for fixing the blocking member 310 and the holder 300 to each other.

The discharge unit 120 of the present invention discharges the internal air of the housing 100 to the outside while connecting one side and the outside of the housing 100 to each other and the supply unit 140 is disposed at one side of the housing 100 and the outside And supplies external air to the housing (100).

The discharge unit 120 of the present invention may further include an air discharging device 130 connected to the discharging unit 120 and for forcibly discharging the internal air of the housing 100 to the outside. The supplying unit 140 may further include an air supplying unit 150 connected to the supplying unit 140 and for forcibly supplying the outside air to the inside of the housing 100. The air discharge device 130 and the air supply device 150 may be installed selectively or simultaneously.

The air discharge device 130 or the air supply device 150 may include a vacuum pump or a fan connected to the motor. And controls the operation of the vacuum pump or the driving of the motor to control the flow of the air inside the first housing 100.

In the present invention, the supply unit 140 may include a purifying filter 141. The purifying filter 141 is capable of removing contaminants contained in the outside air, and the impurities are removed by the purifying filter 141 before the outside air is supplied into the housing 100, ) To minimize the effects on acid degradation and drying of rock samples. In this case, it is preferable to have a structure capable of removing specific elements or fine impurities contained in the external air supplied to the interior of the housing 100. A purifying filter 141 for removing specific elements removes specific elements of the rock sample There is a more advantageous effect in lowering the floor value for detection.

The supplying unit 140 or the discharging unit 120 may be provided with a heat insulating member 142 for preventing the internal heat of the first housing 100 from being discharged to the outside. The supply unit 140 may include an inlet for introducing air into the housing 100 and a discharge unit 120 for discharging the air to the outside. An inlet portion through which the outside air flows and a discharge portion 120 through which the outside air is discharged to the inside of the housing 100. The inlet portion or the outlet portion 120 may include a pipe. The heat insulating member 142 may be provided inside or outside the pipe, or the pipe may be formed of the heat insulating member 142. The heat insulating member 142 is preferably made of an inorganic material and has a porous shape. In the present invention in which the heat insulating member 142 is provided, it is more effective to maintain the internal temperature of the first housing 100 at a predetermined temperature through the heater 400, There is an advantage of minimizing the influence of the rock sample due to the influx of external cold air.

4 and 5 are perspective views showing a discharge control plate 200 according to an embodiment of the present invention.

In an exemplary embodiment of the present invention, the discharge control panel 200 may include a discharge control plate 200 for gradually adjusting the internal air to be transferred to the discharge unit 120.

The discharge regulating plate 200 is disposed inside the housing 100 and has a plate shape extending in the vertical direction and has a predetermined arrangement along the height direction of the housing 100 so as to penetrate the discharge regulating plate 200 A plurality of communication holes 210 to be formed, and a blocking plate 220 for stepwise blocking a part or all of the communication holes 210.

Specifically, the discharge regulating plate 200 has a structure that blocks the front and the rear of the inside of the first housing 100, and the discharge regulating plate 200 is generated through the plurality of communication holes 210 during the acid decomposition or dry process of the rock sample The gas is discharged in the direction of the discharge portion 120. [ At this time, the blocking plate 220 shields part or all of the plurality of communication holes 210, and controls the flow rate of gas passing through the communication holes 210. That is, the discharge control plate 200 smoothly discharges the gas generated from the rock sample, and induces the discharge of gas from the rock sample at a specific position of the first housing 100 according to progress of the pre-processing .

The kind and flow rate of the gas generated during the acid decomposition or dry process of the rock sample may be different from each other. When the gas of the rock sample is discharged through the discharge unit 120, There is a difficult problem. In the present invention, the discharge position and discharge flow rate are adjusted according to the flow rate or type of gas generated in the acid decomposition or drying process of the rock sample through the discharge regulating plate 200. For example, when the gas generated from the rock sample is discharged in a state where only a part of the plurality of communication holes 210 is opened, as the discharge speed of the gas discharged through the opened communication hole 210 increases This is a method of smoothly discharging gas at a specific position.

As shown in FIG. 4, the shield plate 220 is disposed to protrude outward from the housing 100. In an embodiment of the present invention, the shield plate 220 extends in the horizontal direction And may be shaped to cut off the communication hole 210 while sliding to the left and right of the housing 100. For this purpose, the discharge control plate 200 may be provided with a sliding rail 230 that is detachably coupled to the blocking plate 220 and extends in the horizontal direction. The sliding rail 230 may be formed as a pair protruding inward to face each other at a position where the blocking plate 220 is coupled. In this case, the blocking plate 220 may be provided with a groove shaped to be inwardly in contact with the sliding rail 230.

The shield plate 220 is provided with a razor gear 221 extending in the horizontal direction and the housing 100 is provided with a pinion gear 102 engaged with the razor gear 221, And a driving motor 103 for rotating the driving motor 103. In this case, the operation of the driving motor 103 is controlled to move the blocking plate 220 along the sliding rail 230, thereby blocking part or all of the communication hole 210. In the present invention, the driving motor 103 is preferably disposed outside the housing 100 in consideration of the internal temperature of the first housing 100.

5, the blocking plate 220 is vertically extended and slides in the vertical direction of the housing 100, thereby blocking the communication hole 210. In other words, Lt; / RTI > In this case, the sliding rail 230 extends in the vertical direction. The shield plate 220 is provided with a razor gear 221 extending in the vertical direction and a pinion gear 102 connected to the razor gear 221 and a driving gear A motor 103 may be provided.

6 is a perspective view illustrating a pretreatment apparatus for a rock sample comprising an inner housing and an outer housing according to an embodiment of the present invention.

Referring to FIG. 6, in one embodiment of the present invention, the housing 100 may be a double structure including an inner housing and an outer housing.

More specifically, the outer housing is provided to surround the outer side of the inner housing and is spaced apart from the inner housing. The inner housing and the outer housing may each include a door 110 for opening and closing one side thereof. The mount 300, the heater 400, and the shutoff member 310 are provided on the inner side of the inner housing to perform acid decomposition and drying of the rock sample.

The discharge regulating plate 200 is coupled to one side of the inner housing and blocks the flow of air inside the outer housing. For example, the discharge control plate 200 is coupled to the rear surface of the inner housing, and the gas generated from the rock sample is discharged through the plurality of communication holes 210 provided in the discharge control plate 200, 120). The shape of the discharge regulating plate 200 may be the same as that shown in FIGS. 4 and 5.

In this case, the supply unit 140 supplies external air to the internal housing while communicating the internal housing with the external housing, and in this case, the purifying filter 141 may be provided between the internal housing and the external housing .

 And the outer housing spaced apart from the inner housing by a predetermined distance is relatively lower in temperature than the inner housing. The interior of the inner housing may be limited in installation of the purifying filter 141, the air exhausting device 130 and the like as the inside of the internal combustion chamber is heated up to about 200 ° C during the acid decomposition or dry process of the rock sample. In the present invention having the dual structure, a fan or the like may be installed in the outer housing to smoothly discharge the air through the discharge unit 120 and to prevent the purifying filter 141 from being deformed due to temperature . In addition, there is an effect that the temperature applied to the drive motor 103 described above is reduced to prevent an overload or a malfunction.

The present invention having the above-described structure provides a pretreatment apparatus for measuring the kind or content of a specific component or a component of a rock sample, and a rock sample pretreatment apparatus for lowering the bottom value of the rock sample, And precise pretreatment can be performed by excluding the influence of the rock samples on each other. In addition, the flow rate of the discharged gas can be adjusted stepwise, and it is possible to induce the discharge of the required gas at a specific position according to the process.

100: housing 101: second rail
102: pinion gear 103: drive motor
110: Door 120:
130: Air discharge device
140: supply part 141: purifying filter
142: Heat insulating member 150: Air supply device
200: discharge regulating plate 210: communication hole
220: blocking plate 221:
230: sliding rail
300: mounting base 301: mounting hole
302: fixing groove 303: first rail
310: blocking member
311: Mesh net 312: Fixing projection
400: heater

Claims (9)

A housing having a sealing structure;
A door provided on one side of the housing for opening and closing the housing;
A holder which is provided inside the housing and on which a plurality of vials for receiving the sample are mounted;
A heater connected to the cradle and heating the vial to a predetermined temperature;
A discharge unit for discharging the internal air of the housing to the outside while communicating the inside and the outside of the housing;
A supply unit for supplying outside air to the inside of the housing while communicating the inside and the outside of the housing;
A purifying filter provided in the supplying part and purifying the outside air flowing into the supplying part;
A blocking member provided at an upper portion of the cradle to exclude mutual interference of the rock samples due to heating of the vial; And
And a discharge control plate for controlling the internal air of the housing moved to the discharge portion in a stepwise manner,
Wherein the discharge-
A plurality of communication holes formed in a predetermined array along the height direction of the housing and formed to pass through the discharge control plate; And
And a blocking plate for blocking a part or all of the communication holes in a stepwise manner.
The method according to claim 1,
Further comprising an air discharging device connected to the discharging portion and for forcibly discharging the inner air of the housing to the outside.
The method according to claim 1,
Further comprising an air supply device connected to the supply unit for forcibly supplying the outside air to the inside of the housing.
The method of claim 3,
Wherein the supplying unit or the discharging unit is provided with a thermal insulating member for preventing the heat inside the housing from being discharged to the outside.
The method according to claim 2 or 3,
Wherein the housing, the holder, and the blocking member are formed of Teflon.
delete delete 6. The method of claim 5,
The blocking member
A plurality of vials corresponding to the respective vials, a cylindrical shape extending in a height direction, and a mesh network at an upper portion thereof.
9. The method of claim 8,
Wherein the housing is a double structure including an inner housing and an outer housing.

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