Gas chromatographic analysis soil intervention device and intervention method

Abstract

The invention relates to the field of gas chromatographic analysis, and particularly discloses a gas chromatographic analysis soil intervention device which comprises a connecting seat, a gas chromatographic analysis device and a gas chromatographic analysis device, the regulation and control frame assembly is connected with the connecting seat; the raised dust arrangement assembly is connected with the regulation and control frame assembly; the sample accommodating frame assembly is connected with the regulation and control frame assembly; the soil evacuation device is connected with the regulation and control frame assembly; wherein the soil evacuation device comprises a pressure distribution uniformizing device, and the pressure distribution uniformizing device is connected with a regulation and control frame assembly; the intervention groove frame assembly is connected with the sample containing frame assembly, through cooperative operation of the pressure dividing and homogenizing device and the intervention groove frame assembly, the soil sample can be effectively subjected to pressure fixing, crushing and homogenizing treatment, the problem that an existing device is difficult to ensure the uniformity of the soil sample is solved, the hidden danger of non-uniformity is eliminated from the source, and the quality of the soil sample is improved. Uniform hole grooves can be adjusted according to the size of a required soil sample, and the sample is accurately prepared.

Description

Technical Field

[0001] The invention relates to the gas chromatography analysis industry, in particular to a gas chromatography analysis soil intervention device and an intervention method. Background Art

[0002] In many fields such as ecological environment research, agricultural production optimization and geological exploration, accurate analysis of soil composition plays a vital role. With its advantages of high sensitivity and high resolution, gas chromatography analysis has become a key technical means for soil composition analysis, and can accurately detect complex and diverse organic and inorganic compounds in the soil.

[0003] However, when conducting soil analysis, gas chromatographs have extremely strict requirements for soil samples. Among them, the uniformity of soil samples is crucial. Only when the soil samples have good uniformity can the samples taken truly and comprehensively represent the overall soil characteristics. Once the sample uniformity is poor, it is very likely to cause a large deviation in the analysis results during the gas chromatography analysis.

[0004] Existing soil intervention devices and related methods have obvious defects in ensuring the uniformity of soil samples. In the sample pretreatment stage, conventional tools and methods often fail to ensure the uniformity of soil samples, resulting in the potential for inhomogeneity in the initial samples. In view of the above technical problems, it is urgent to develop a gas chromatography soil intervention device and intervention method. Summary of the invention

[0005] The object of the present invention is to provide a gas chromatography soil intervention device and intervention method to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A gas chromatography soil intervention analysis device, comprising:

[0008] Connecting seat;

[0009] A regulating frame assembly, wherein the regulating frame assembly is connected to a connecting seat;

[0010] A dust collection component, wherein the dust collection component is connected to the control frame component;

[0011] A sample containing rack assembly, wherein the sample containing rack assembly is connected to the regulating rack assembly;

[0012] A soil evacuation device, the soil evacuation device is connected to the regulating frame assembly;

[0013] Wherein, the soil evacuation device comprises:

[0014] A pressure distribution uniform device, the pressure distribution uniform device is connected to the regulating frame assembly;

[0015] The intervention tank frame assembly is connected to the sample containing frame assembly and is used to cooperate with the pressure distribution and uniformity device to complete the uniformity treatment of the soil sample.

[0016] Compared with the prior art, the beneficial effects of the present invention are: through the coordinated operation of the pressure-splitting and uniformizing device and the intervention slot frame assembly, the soil sample can be effectively pressed, crushed and homogenized, overcoming the difficulty of the prior device in ensuring the uniformity of the soil sample, eliminating the hidden danger of unevenness from the source, and adjusting the uniform slot according to the required soil sample size to accurately prepare the sample. At the same time, multiple driving parts cooperate with each other, and can be accurately adjusted according to the feed position of the gas chromatograph, so that the sample can be efficiently and accurately delivered to the instrument, improving the accuracy and efficiency of subsequent detection and analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the internal structure of a gas chromatography soil intervention device in an embodiment of the present invention.

[0018] Figure 2 The figure is a schematic diagram of the external structure of a gas chromatography soil intervention device in an embodiment of the present invention.

[0019] Figure 3 The present invention is a schematic structural diagram of a sample holding rack assembly in a gas chromatography soil intervention analysis device according to an embodiment of the present invention.

[0020] Figure 4 It is a structural schematic diagram of a pressure distribution uniformity device in a gas chromatography soil intervention device in an embodiment of the present invention.

[0021] In the figure: 1-connecting seat, 2-regulating frame assembly, 3-dust placement assembly, 4-sample containing frame assembly, 5-soil evacuation device, 6-pressure distribution uniform device, 7-intervention slot frame assembly, 201-first driving member, 202-second driving member, 203-fixed frame, 204-limiting frame, 205-linkage frame, 206-outer shell, 301-negative pressure member, 302-filter element bin, 303-air inlet groove, 401-limiting slide seat, 402-first elastic member, 403-storage bin, 404-feeding port, 405-discharging port, 601-connecting bin, 602-second elastic member, 603-uniform member, 604-uniform hole groove, 605-guide groove, 701-intervention slot frame, 702-third driving member, 703-bottom plate, 704-fourth driving member, 705-fifth driving member, 706-control plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] A gas chromatography soil intervention device, in one embodiment of the present invention, as Figure 1 and Figure 2 As shown, it includes: a connecting seat 1; a regulating frame assembly 2, the regulating frame assembly 2 is connected to the connecting seat 1; a dust collection assembly 3, the dust collection assembly 3 is connected to the regulating frame assembly 2; a sample accommodating frame assembly 4, the sample accommodating frame assembly 4 is connected to the regulating frame assembly 2; a soil evacuation device 5, the soil evacuation device 5 is connected to the regulating frame assembly 2; wherein, the soil evacuation device 5 includes: a pressure distribution uniform device 6, the pressure distribution uniform device 6 is connected to the regulating frame assembly 2; an intervention groove frame assembly 7, the intervention groove frame assembly 7 is connected to the sample accommodating frame assembly 4, and is used to cooperate with the pressure distribution uniform device 6 to complete the homogenization treatment of the soil sample.

[0024] In one embodiment of the present invention:

[0025] like Figure 1 and Figure 2 As shown, the regulating frame assembly 2 includes: a first driving member 201, the first driving member 201 is connected to the connecting seat 1; the first driving member 201 uses an electric shaft seat; a second driving member 202, the second driving member 202 is connected to the first driving member 201; the second driving member 202 uses an electric telescopic rod; a fixed frame 203, the fixed frame 203 is connected to the end of the second driving member 202 away from the first driving member 201; a limiting frame 204, the limiting frame 204 is connected to the second driving member 202; a linkage frame 205, the linkage frame 205 is rotatably connected to the fixed frame 203; an outer shell 206, the outer shell 206 is connected to the limiting frame 204;

[0026] The connection seat 1 is connected to a fixed position on the top side of the gas chromatograph (not shown in the figure). When the first driving member 201 is running, it can drive the device as a whole to swing back and forth. When the second driving member 202 is running, it can cooperate with the fixed frame 203 to drive the pressure distribution uniform device 6 to move longitudinally. At the same time, it cooperates with the linkage frames 205 on both sides. When the pressure distribution uniform device 6 moves downward, it can drive the sample accommodating frame assemblies 4 on both sides to move in opposite directions.

[0027] In the present application, the first driving member 201 is not limited to an electric axle seat, but can also be driven by a linear motor, an electric cylinder or a pneumatic cylinder, etc., as long as the swing adjustment of the dust collection component 3 can be achieved, and no specific limitation is made here; the second driving member 202 is not limited to an electric telescopic rod, but can also be driven by a linear motor, an electric cylinder or a pneumatic cylinder, etc., as long as the movement adjustment of the pressure distribution uniformity device 6 can be achieved, and no specific limitation is made here.

[0028] In one embodiment of the present invention:

[0029] like Figure 1 and Figure 2 As shown, the dust disposal component 3 includes: a negative pressure member 301, the negative pressure member 301 is connected to the first driving member 201; the negative pressure member 301 uses a negative pressure fan; a filter cartridge bin 302, the filter cartridge bin 302 is connected to the negative pressure member 301; an air inlet groove 303, the air inlet groove 303 is connected to the filter cartridge bin 302;

[0030] When the soil sample is pressed, crushed and homogenized by the pressing and evenly dividing device 6 and the interference groove rack assembly 7, a certain amount of dust will be generated. Therefore, when the pressing and evenly dividing device 6 is running, the negative pressure member 301 runs synchronously, and a negative pressure is formed in the middle of the sample containing rack assemblies 4 on both sides through the air inlet groove 303, so as to collect and purify the dust generated when the soil sample is pressed, crushed and homogenized.

[0031] In one embodiment of the present invention:

[0032] like Figures 1 to 3 As shown, the sample holding rack assembly 4 includes: a limiting slide 401, which is connected to the limiting frame 204 in a limiting sliding manner; a first elastic member 402, which is connected to the limiting slide 401; the first elastic member 402 is selected from an elastic telescopic rod; a storage bin 403, which is connected to the first elastic member 402 and communicated with the first elastic member 402; a feeding port 404, which is connected to the storage bin 403; a feeding port 405, which is arranged on the inner side of the first elastic member 402 and communicated with the storage bin 403;

[0033] Uninterrupted soil samples can be added to the storage bin 403 through the feeding port 405. When the fixing frame 203 and the pressure-distribution uniform device 6 move downward, the linkage frame 205 can drive the first elastic members 402 on both sides to move in opposite directions. When the pressure-distribution uniform device 6 moves downward, the discharge port 405 is connected to the outside. The uninterrupted soil samples in the storage bin 403 can be discharged to the pressure-distribution uniform device 6 through the discharge port 405, and then pass through the pressure-distribution uniform device 6 to be introduced into the bottom intervention slot frame assembly 7.

[0034] In one embodiment of the present invention:

[0035] like Figure 1 and Figure 4 As shown, the pressure distribution uniform device 6 includes: a connecting bin 601, the connecting bin 601 is connected to the fixing frame 203; a second elastic member 602, the second elastic member 602 is connected to the outer side of the connecting bin 601, and is in sliding contact with the first elastic member 402; the second elastic member 602 uses an elastic telescopic inclined plane frame; a plurality of uniform members 603, the uniform members 603 are connected to the bottom side of the connecting bin 601; the uniform member 603 uses an electric roller shaft; a plurality of groups of uniform hole grooves 604, the uniform hole grooves 604 are arranged outside the uniform member 603; a guide groove 605, the guide groove 605 is arranged inside the second elastic member 602;

[0036] The diameters of several groups of uniform holes and grooves 604 are different. According to the required size of the soil sample, several uniform members 603 are synchronously rotated and adjusted to move the uniform holes and grooves 604 that meet the preparation size requirements vertically downward. After the uniform members 603 are adjusted, when the fixed frame 203 moves back and forth longitudinally under the drive of the second driving member 202, the connecting bin 601 and the second elastic members 602 on both sides of it move back and forth longitudinally synchronously, and the connecting bin 601 and the second elastic members 602 on both sides of it are periodically embedded in the intervention groove frame assembly 7. Several uniform members 603 can intervene in the soil in the intervention groove frame assembly 7 through the uniform holes and grooves 604 on the bottom side to press the soil into a soil sample that meets the requirements. When the second elastic members 602 on both sides move downward, the discharge port 405 on the bottom side of the first elastic member 402 on each side is no longer blocked, and the soil inside the storage bin 403 can be guided to the top side of the second elastic member 602 through the discharge port 405, and then guided to the inside of the intervention groove frame assembly 7 through the guide groove 605.

[0037] In one embodiment of the present invention:

[0038] like Figures 1 to 4 As shown, the intervention slot frame assembly 7 includes: an intervention slot frame 701, the intervention slot frame 701 is connected to the outer shell 206; a third driving member 702, the third driving member 702 is connected to the intervention slot frame 701; the third driving member 702 uses an electric shaft seat; a bottom plate 703, the bottom plate 703 is connected to the third driving member 702; a fourth driving member 704, the fourth driving member 704 is connected to the outer side of the intervention slot frame 701; the fourth driving member 704 uses an electric telescopic rod; a fifth driving member 705, the fifth driving member 705 is connected to the fourth driving member 704; the fifth driving member 705 uses an electric shaft seat; a material control plate 706, the material control plate 706 is connected to the fifth driving member 705;

[0039] The feeding position of the gas chromatograph is at the bottom of the material control plate 706. According to the feeding position of the gas chromatograph, the distance between the material control plate 706 and the feeding position of the gas chromatograph is adjusted by the fourth driving member 704. When the soil is pressed into a soil sample that meets the requirements, the first driving member 201 stops rotating. When the third driving members 702 on both sides are running, the bottom plates 703 on both sides can be driven to rotate synchronously toward the bottom side. The part of the soil sample that has been pressed can be guided to the material control plate 706 through the bottom plates 703 on both sides. At the same time, the fifth driving member 705 operates periodically, rotating 90 degrees each time, and guides the soil sample guided to the material control plate 706 to the inside of the gas chromatograph.

[0040] In the present application, the third driving member 702 is not limited to an electric axle seat, but can also be driven by a linear motor, an electric cylinder or a pneumatic cylinder, etc., as long as the adjustment of the bottom plate 703 can be achieved, and no specific limitation is made here; the fourth driving member 704 is not limited to an electric telescopic rod, but can also be driven by a linear motor, an electric cylinder or a pneumatic cylinder, etc., as long as the longitudinal movement adjustment of the material control plate 706 can be achieved, and no specific limitation is made here; the fifth driving member 705 is not limited to an electric axle seat, but can also be driven by a linear motor, an electric cylinder or a pneumatic cylinder, etc., as long as the rotation adjustment of the material control plate 706 can be achieved, and no specific limitation is made here.

[0041] In one embodiment of the present invention:

[0042] A gas chromatography soil intervention method, the method comprising:

[0043] Step 1: Fix the connecting seat 1 on the top side of the gas chromatograph, add soil samples to the storage bin 403 through the feeding port 405, rotate and adjust the uniform member 603 according to the required sample size, and adjust the appropriate uniform hole slot 604 vertically downward; Step 2: Start the second driving member 202 to drive the fixing frame 203 and the pressure-dividing uniform device 6 to move downward, and cooperate with the linkage frame 205 to make the sample accommodating frame assembly 4 move in opposite directions. At the same time, the negative pressure member 301 forms a negative pressure in the middle through the air inlet slot 303, and the pressure-dividing uniform device 6 cooperates with the intervention slot frame assembly 7 to press, crush and homogenize the sample, and the dust generated in the process is collected and purified; Step 3: Fix the frame 2 03 moves back and forth longitudinally, the connecting bin 601 and the second elastic members 602 on both sides thereof are periodically embedded in the intervening slot frame assembly 7, the uniform member 603 presses the soil into a sample, and when the second elastic member 602 moves downward, the soil in the storage bin 403 continues to fall into the intervening slot frame assembly 7 through the discharge port 405 and the guide groove 605; Step 4, according to the feeding position of the gas chromatograph, the height position of the material control plate 706 is adjusted by the fourth driving member 704. After the pressing is completed, the third driving member 702 is started to rotate the bottom plate 703, and the soil sample falls to the material control plate 706, and then the fifth driving member 705 periodically rotates 90 degrees to transport the sample to the inside of the gas chromatograph.

[0044] The working principle of the present invention is as follows: the connection seat 1 is connected to a fixed position on the top side of a gas chromatograph (not shown in the figure); when the first driving member 201 is in operation, the device as a whole can be driven to swing back and forth; when the second driving member 202 is in operation, it can cooperate with the fixed frame 203 to drive the pressure-distribution and uniformization device 6 to move longitudinally; at the same time, in cooperation with the linkage frames 205 on both sides, when the pressure-distribution and uniformization device 6 moves downward, it can drive the sample accommodating frame assemblies 4 on both sides to move in opposite directions; when the soil sample is subjected to pressure-distribution and uniformization processing by the pressure-distribution and uniformization device 6 and the interference groove frame assembly 7, a certain amount of dust will be generated. Therefore, when the pressure-distribution and uniformity device 6 is in operation, the negative pressure member 301 is operated synchronously, and a negative pressure is formed in the middle of the sample accommodating frame assembly 4 on both sides through the air inlet groove 303, so that the dust generated during the pressure-distribution and uniformity treatment of the soil sample is collected and purified, and the uninterrupted soil sample can be added to the storage bin 403 through the feeding port 405. When the fixed frame 203 and the pressure-distribution and uniformity device 6 move downward, the linkage frame 205 can be cooperated to drive the first elastic members 402 on both sides to move in opposite directions, and when the pressure-distribution and uniformity device 6 moves downward, the feeding port 405 is connected to the outside, and the storage bin 403 is The uninterventional soil sample inside can be led out to the pressure-dividing and uniformizing device 6 through the discharge port 405, and then pass through the pressure-dividing and uniformizing device 6, and be introduced into the bottom intervention slot frame assembly 7. The diameters of the plurality of uniform hole slots 604 are different. According to the required size of the soil sample, the plurality of uniform members 603 are synchronously rotated and adjusted to move the uniform hole slots 604 that meet the preparation size requirements vertically downward. After the uniform members 603 are adjusted, when the fixing frame 203 is driven by the second driving member 202 to reciprocate longitudinally, the connecting chamber 601 and the second elastic members 602 on both sides thereof are synchronously reciprocated longitudinally. The connecting bin 601 and the second elastic members 602 on both sides thereof are periodically embedded in the intervening groove frame assembly 7, and a plurality of uniform members 603 can intervene in the soil in the intervening groove frame assembly 7 through the uniform hole grooves 604 on the bottom side, and press the soil into a soil sample that meets the requirements. When the second elastic members 602 on both sides move downward, the discharge openings 405 on the bottom sides of the first elastic members 402 on each side are no longer blocked, and the soil inside the storage bin 403 can be guided to fall to the top side of the second elastic member 602 through the discharge openings 405, and then guided to fall into the intervening groove frame assembly 7 through the guide grooves 605;

[0045] The feeding position of the gas chromatograph is at the bottom side of the material control plate 706. According to the feeding position of the gas chromatograph, the distance between the material control plate 706 and the feeding position of the gas chromatograph is adjusted by the fourth driving member 704. When the soil is pressed into a soil sample that meets the requirements, the first driving member 201 no longer rotates. When the third driving members 702 on both sides are running, the bottom plates 703 on both sides can be driven to rotate synchronously toward the bottom side. Part of the soil samples that have been pressed can be guided to the material control plate 706 through the bottom plates 703 on both sides. At the same time, the fifth driving member 705 operates periodically, rotating 90 degrees each time, and guides the soil samples that have fallen on the material control plate 706 to the inside of the gas chromatograph.

[0046] In summary, through the coordinated operation of the pressure-distribution and uniformization device 6 and the intervention slot frame assembly 7, the soil sample can be effectively pressure-distributed, crushed and homogenized, overcoming the difficulty of the existing device in ensuring the uniformity of the soil sample, eliminating the hidden danger of unevenness from the source, and adjusting the uniform hole slot according to the required soil sample size to accurately prepare the sample. At the same time, multiple driving parts cooperate with each other, and can be accurately adjusted according to the feed position of the gas chromatograph, so that the sample can be efficiently and accurately transported to the instrument, improving the accuracy and efficiency of subsequent detection and analysis.

[0047] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A gas chromatography soil intervention device, characterized in that: include: Connecting seat; A regulating frame assembly, wherein the regulating frame assembly is connected to a connecting seat; A dust collection component, wherein the dust collection component is connected to the control frame component; A sample containing rack assembly, wherein the sample containing rack assembly is connected to the regulating rack assembly; A soil evacuation device, the soil evacuation device is connected to the regulating frame assembly; Wherein, the soil evacuation device comprises: A pressure distribution uniform device, the pressure distribution uniform device is connected to the regulating frame assembly; The intervention tank frame assembly is connected to the sample containing frame assembly and is used to cooperate with the pressure-dividing and homogenizing device to complete the homogenization treatment of the soil sample.

2. The gas chromatography soil intervention device according to claim 1, characterized in that: The control frame assembly comprises: A first driving member, the first driving member is connected to the connecting seat; a second driving member, the second driving member being connected to the first driving member; A fixing frame connected to an end of the second driving member away from the first driving member; A limiting frame, wherein the limiting frame is connected to the second driving member; A linkage frame, the linkage frame is rotatably connected to the fixed frame; The outer shell is connected to the limiting frame.

3. The gas chromatography soil intervention device according to claim 2, characterized in that: The dust collection component comprises: A negative pressure member connected to the first driving member; A filter cartridge compartment, wherein the filter cartridge compartment is in communication with the negative pressure member; An air inlet groove is connected to the filter element bin.

4. The gas chromatography soil intervention device according to claim 3, characterized in that: The sample holding rack assembly comprises: A limit slide, the limit slide is connected to the limit frame in a limit sliding manner; A first elastic member, wherein the first elastic member is connected to the limiting sliding seat; A material storage bin, the material storage bin is connected to the first elastic member and communicates with the first elastic member; A feeding port, the feeding port being connected to the storage bin; The material discharge port is arranged inside the first elastic member and is communicated with the material storage bin.

5. The gas chromatography soil intervention device according to claim 4, characterized in that: The pressure distribution uniformity device comprises: A connecting bin connected to the fixing frame; A second elastic member, the second elastic member is connected to the outer side of the connecting chamber and is in sliding contact with the first elastic member; A plurality of uniform members connected to the bottom side of the connecting bin; A plurality of groups of uniform holes and slots, wherein the uniform holes and slots are arranged outside the uniform member; A guide groove is arranged inside the second elastic member.

6. The gas chromatography soil intervention device according to claim 5, characterized in that: The intervention slot frame assembly comprises: An intervention slot frame, the intervention slot frame is connected to the outer shell; a third driving member, the third driving member being connected to the interference slot frame; A bottom plate connected to the third driving member; a fourth driving member connected to the outer side of the interference slot frame; a fifth driving member, the fifth driving member being connected to the fourth driving member; A material control plate is connected to the fifth driving member.

7. A method for gas chromatography soil intervention, using the gas chromatography soil intervention device as described in claims 1-6, characterized in that: The method comprises: Step 1: Fix the connection base on the top side of the gas chromatograph, add the soil sample to the storage bin through the feeding port, turn the adjustment piece according to the required sample size, and adjust the appropriate uniform hole slot vertically downward; Step 2: Start the second driving member to drive the fixing frame and the pressure-distribution and uniformization device to move downward, cooperate with the linkage frame to make the sample containing frame assembly move in opposite directions, and at the same time, the negative pressure member forms a negative pressure in the middle through the air inlet groove, and the pressure-distribution and uniformization device cooperates with the intervention groove frame assembly to perform pressure-distribution and uniformization treatment on the sample, and the dust generated in the process is collected and purified; Step 3: The fixed frame moves back and forth longitudinally, the connecting bin and the second elastic members on both sides thereof are periodically embedded in the intervening groove frame assembly, the uniform member presses the soil into a sample, and when the second elastic member moves downward, the soil in the storage bin continuously falls into the intervening groove frame assembly through the discharge port and the guide groove; Step 4: According to the feeding position of the gas chromatograph, the height position of the material control plate is adjusted by the fourth driving member. After the pressing is completed, the third driving member is started to rotate the bottom plate, and the soil sample falls onto the material control plate, and then the fifth driving member periodically rotates the plate to transport the sample to the inside of the gas chromatograph.

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