Tabletting, sample preparation and dust collection device suitable for X-ray fluorescence spectrophotometer

Abstract

The utility model relates to the technical field of tabletting, sample preparation and dust collection suitable for an X-ray fluorescence spectrophotometer. According to the tabletting, sample preparation and dust collection device suitable for the X-ray fluorescence spectrometer, a clamping rod is pushed towards the inner side by hand, then the clamping rod enters a dust collection disc, then the dust collection disc is placed in an inner cavity of a second dust collection hose by hand, and then the clamping rod moves towards the outer side under the action of a second spring after the dust collection disc reaches a designated position; then a clamping rod penetrates to the outer side of a second dust collection hose, after a dust collection disc is used, a user holds the dust collection disc with the hand to pull a moving ring to the right side, then a push rod restores to the original position under the action of a first spring, the clamping rod is pushed to move to the inner side, and then the effect of disassembling the dust collection disc is achieved. And due to the influence of the size of the dust and the air speed of the mixed flow fan, the dust inlet hole of the dust collection disc is very easy to block.

Description

Technical Field

[0001] The utility model relates to the technical field of analytical testing equipment, and particularly relates to a dust suction device for sample pressing and sample preparation of analytical samples. Background Art

[0002] An X-ray fluorescence spectrometer is a rapid and non-destructive material measurement instrument. X-ray fluorescence is the secondary X-ray excited when high-energy X-rays bombard a material. This principle is used to determine the elements in mineral samples or soil samples.

[0003] An X-ray fluorescence spectrometer consists of an excitation source and a detection system. The X-ray tube generates incident X-rays to excite the sample to be measured. Each element in the excited sample will emit secondary X-rays, and the secondary X-rays emitted by different elements have specific energy characteristics or wavelength characteristics. The detection system measures the energy and quantity of these emitted secondary X-rays, and the instrument software converts the information collected by the detection system into the types and contents of various elements in the sample. The secondary X-ray generated when X-rays irradiate a substance is called X-ray fluorescence. Using the X-ray fluorescence principle, theoretically, each element after beryllium in the periodic table can be measured.

[0004] When using an X-ray fluorescence spectrometer to detect soil samples, it is usually necessary to press the soil sample powder into a round tablet on a tablet press for detection. After tablet pressing, it is necessary to remove the uncompacted soil sample on the surface of the sample, resulting in a large amount of dust in the sample detection chamber, and there is more soil sample remaining on the tablet press. Therefore, a dust suction device is needed to clean and collect the dust.

[0005] When the tester performs sample pressing and sample preparation, dust removal is mainly achieved by using a handheld vacuum cleaner and installing a fume hood in the sample preparation and analysis room. The handheld vacuum cleaner is used to remove the uncompacted soil sample, and the fume hood sucks away the dust remaining on the tablet press equipment and its vicinity. The dust removal efficiency of the handheld vacuum cleaner device is relatively low. For each tablet pressed, the dust suction device needs to be started once, or the dust removal is carried out uniformly after a batch of samples are pressed. This increases the operation steps and occupies a large space in the analysis room. Using a fume hood to remove dust from the tablet press has poor dust removal effect due to the large space.

[0006] Currently, there are also similar dust suction devices on the market. For example, Chinese Patent No. 201922108474.9 discloses a dust suction device for a pharmaceutical tablet press, which includes a box body. One side of the outer wall of the top of the box body is fixed with a negative pressure mechanism and a dust suction mechanism, and a filter screen is fixed inside the box body. The air outlet end of the dust suction mechanism is fixed with a hose. One end of the hose is fixed with a guide pipe, the bottom end of the guide pipe passes through the inner wall of the top of the box body and is inserted below the filter screen, the bottom end of the guide pipe is fixed with a gas guide hopper, and a discharging mechanism is fixed at the bottom end of one side outer wall of the box body.

[0007] This device is mainly applicable to pharmaceutical tablet pressing. The size of the tablets is inconsistent with the samples tested by the X-ray fluorescence spectrometer, so its applicability is not strong and it cannot improve the detection efficiency. At the same time, during the use of this device, due to the lower position of the unloading device, the influence of dust will affect the wind speed of the dust suction fan, which is extremely likely to cause blockage, thus affecting the use effect of dust suction.

[0008] In view of this, the inventor has made great improvements and proposed a dust suction device for tablet sample preparation applicable to the X-ray fluorescence spectrometer. Utility Model Content

[0009] The purpose of the present utility model is to provide a dust suction device for tablet sample preparation applicable to the X-ray fluorescence spectrometer to solve the problems raised in the above-mentioned background technology.

[0010] To achieve the above purpose, the present utility model provides the following technical solutions:

[0011] A dust suction device for tablet sample preparation applicable to the X-ray fluorescence spectrometer includes a dust suction device body. The dust suction device body includes a box body. The top of the right side of the box body is communicated with a dust suction air duct. The right side of the dust suction air duct is communicated with a connecting pipe. The top of the inner cavity of the connecting pipe is communicated with a second dust suction hose. A disassembly mechanism and an installation mechanism are installed on the right side of the inner cavity of the second dust suction hose.

[0012] The bottom of the surface of the connecting pipe is threadedly connected with a threaded sleeve. The bottom of the threaded sleeve is fixedly connected with a self-sinking cup. A drawplate filter is installed on the top of the inner cavity of the box body. A control box is installed in the inner cavity of the box body and is located at the bottom of the drawplate filter. The bottom of the control box is fixedly connected with a mixed-flow fan. The bottom of the mixed-flow fan is communicated with a secondary filter cloth bag. The bottom of the secondary filter cloth bag is fixedly connected to the inner cavity of the box body.

[0013] As a further scheme of the present utility model: The installation mechanism includes a dust suction disc. The surface of the dust suction disc is movably connected to the inner cavity of the second dust suction hose. A clamping rod is movably connected to the inner cavity of the dust suction disc. The outer side of the clamping rod penetrates to the outside of the second dust suction hose.

[0014] As a further scheme of the present utility model: The disassembly mechanism includes a moving ring. A push rod is movably connected to the inner cavity of the moving ring. The inner side of the push rod is movably connected to the surface of the second dust suction hose. The outer side of the push rod is fixedly connected with a round plate. The outer side of the round plate is fixedly connected with a pull ring. The pull ring is arranged in an annular structure.

[0015] As a further scheme of the present utility model: The inner cavity of the dust suction disc is provided with a dust inlet hole. The dust inlet hole is circular in structure.

[0016] As a further solution of the utility model: a positioning rod is movably connected to the inner side of the inner cavity of the clamping rod, and the inner side of the positioning rod is fixedly connected to the inner cavity of the dust suction disc.

[0017] As a further solution of the utility model: a second spring is sleeved on the surface of the positioning rod, the inner side of the second spring is fixedly connected to the inner cavity of the dust suction disc, and the outer side of the second spring is fixedly connected to the inner side of the clamping rod.

[0018] As a further solution of the utility model: a first spring is sleeved on the surface of the push rod, the inner side of the first spring is fixedly connected to the surface of the push rod, and the outer side of the first spring is fixedly connected to the inner cavity of the moving ring.

[0019] As a further solution of the utility model: a tension spring is sleeved on the surface of the second dust suction hose, the right side of the tension spring is fixedly connected to the left side of the moving ring, the left side of the tension spring is fixedly connected with a fixed sleeve, and the inner cavity of the fixed sleeve is fixedly connected to the surface of the second dust suction hose.

[0020] As a further solution of the utility model: rollers are fixedly connected to the four corners of the bottom of the box body.

[0021] As a further solution of the utility model: the number of the push rods is not less than 2

[0022] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0023] 1. By setting the self-sinking cup, the utility model can collect larger soil dust particles, prevent larger soil dust particles from entering the extraction plate filter through the pipeline, reduce the replacement frequency of the extraction plate filter, and reduce the production cost.

[0024] 2. Through the disassembly mechanism and the installation mechanism, the utility model solves the problem that in the prior art, during the use of the dust suction device, the dust inlet holes of the dust suction disc are prone to blockage, which further causes the blockage of the pipeline by particulate dust, affects the wind speed of the mixed-flow fan, and results in poor dust removal effect.

[0025] 3. By setting the self-sinking cup and the extraction plate filter, the utility model realizes the rapid cleaning of the pipeline, solves the problem that in the prior art, during the use of the dust suction device, the dust suction effect is affected due to untimely cleaning of dust accumulation, and effectively avoids the influence of the dust falling of the pressed sample during the on-machine test on the sample test result of the X-ray fluorescence spectrometer analysis equipment, improves the accuracy of sample detection, effectively prevents the damage of the test equipment caused by the dust falling during the sample test process, and reduces the equipment failure rate. Description of the Drawings

[0026] Figure 1 is the structural schematic diagram of the utility model;

[0027] Figure 2 Cross-sectional view of the dust suction disc of the first embodiment of the present utility model;

[0028] Figure 3 Cross-sectional view of the positioning rod structure of the first embodiment of the present utility model;

[0029] Figure 4 Schematic connection diagram of the moving ring structure of the first embodiment of the present utility model;

[0030] Figure 5 Schematic connection diagram of the push rod structure of the first embodiment of the present utility model;

[0031] Figure 6 Schematic structure diagram of the second embodiment of the disassembly mechanism and the installation mechanism of the present utility model;

[0032] In the figure: 1. Dust suction device body; 101. Box body; 102. Drawer filter sheet; 103. Control box; 104. Roller; 105. Mixed flow fan; 106. Secondary filter cloth bag; 107. Self-sinking cup; 108. Threaded sleeve; 109. Connecting pipe; 110. Second dust suction hose; 111. Dust suction air duct; 2. Disassembly mechanism; 201. Fixed sleeve; 202. Moving ring; 203. Circular plate; 204. Pulling ring; 205. Tensile spring; 206. Spring one; 207. Push rod; 3. Installation mechanism; 301. Dust suction disc; 302. Clamping rod; 303. Dust inlet hole; 304. Spring two; 305. Positioning rod; 401. Inner threaded cover; 402. Dust suction sheet mounting plate; 403. Sample support ring; 404. Dust suction sheet. Specific embodiments

[0033] To make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0034] First embodiment

[0035] Please refer to Figure 1 、 2And 3, a tablet pressing sample preparation dust suction device applicable to an X-ray fluorescence spectrometer, comprising a dust suction device body 1. The dust suction device body 1 includes a box body 101. The top of the right side of the box body 101 is communicated with a dust suction air duct 111. The right side of the dust suction air duct 111 is communicated with a connecting pipe 109. The top of the inner cavity of the connecting pipe 109 is communicated with a second dust suction hose 110. An installation mechanism 3 is installed on the right side of the inner cavity of the second dust suction hose 110.

[0036] The installation mechanism 3 includes a dust suction disc 301. The surface of the dust suction disc 301 is movably connected to the inner cavity of the second dust suction hose 110. A clamping rod 302 is movably connected to the inner cavity of the dust suction disc 301. The number of clamping rods 302 is 12, and they are evenly distributed circumferentially on the outer circumferential surface of the dust suction disc 301. The outer side of the clamping rod 302 penetrates to the outside of the second dust suction hose 110.

[0037] A dust inlet hole 303 is formed in the inner cavity of the dust suction disc 301. The dust inlet hole 303 is arranged in a circular structure and the number is multiple. Through the arrangement of the dust inlet hole 303, dust can smoothly pass through the inner cavity of the dust suction disc 301, and then the function of filtering and collecting the dust is achieved. A positioning rod 305 is movably connected to the inner side of the inner cavity of the clamping rod 302. The inner side of the positioning rod 305 is fixedly connected to the inner cavity of the dust suction disc 301. Through the arrangement of the positioning rod 305, the effect of limiting the clamping rod 302 in the moving state is realized, and the phenomenon that the clamping rod 302 deviates during the moving process is avoided. A second spring 304 is sleeved on the surface of the positioning rod 305. The inner side of the second spring 304 is fixedly connected to the inner cavity of the dust suction disc 301. The outer side of the second spring 304 is fixedly connected to the inner side of the clamping rod 302. Through the arrangement of the second spring 304, when the clamping rod 302 moves, the second spring 304 will be compressed, so as to absorb the generated force. Further, when the clamping rod 302 loses force, the second spring 304 will restore its deformation, and then the effect of installing and disassembling the dust suction disc 301 is realized.

[0038] Please refer to Figure 1 、 45, a dust suction device for tablet pressing sample preparation applicable to X-ray fluorescence spectrometers. A disassembly mechanism 2 is installed on the surface of the second dust suction hose 110. The disassembly mechanism 2 includes a moving ring 202. A push rod 207 is movably connected to the inner cavity of the moving ring 202. The number of push rods 207 is the same as that of the clamping rods 302. The inner side of the push rod 207 is movably connected to the surface of the second dust suction hose 110. A circular plate 203 is fixedly connected to the outer side of the push rod 207. A pull ring 204 is fixedly connected to the outer side of the circular plate 203. The pull ring 204 is arranged in an annular structure. By manually pulling the moving ring 202 to the right, the tension spring 205 is elongated due to the movement of the moving ring 202. Subsequently, the push rod 207 is driven to move. Then, when the push rod 207 reaches the position of the clamping rod 302, the push rod 207 moves inward under the action of the first spring 206. Subsequently, the clamping rod 302 is pushed inward, thereby achieving the effect of disassembling and cleaning the dust suction disc 301.

[0039] A first spring 206 is sleeved on the surface of the push rod 207. The inner side of the first spring 206 is fixedly connected to the surface of the push rod 207. The outer side of the first spring 206 is fixedly connected to the inner cavity of the moving ring 202. Through the setting of the first spring 206, when the circular plate 203 moves, the push rod 207 will be driven to move, thereby absorbing the generated force. Further, when the circular plate 203 loses force, the push rod 207 will return to its original position, and then the clamping rod 302 is pushed to disassemble the dust suction disc 301. A tension spring 205 is sleeved on the surface of the second dust suction hose 110. The right side of the tension spring 205 is fixedly connected to the left side of the moving ring 202. The left side of the tension spring 205 is fixedly connected to a fixed sleeve 201. The inner cavity of the fixed sleeve 201 is fixedly connected to the surface of the second dust suction hose 110. Through the setting of the fixed sleeve 201, the tension spring 205 in the working state is supported and fixed. Through the setting of the tension spring 205, when the moving ring 202 moves, the tension spring 205 will be elongated, thereby absorbing the generated force. Further, when the moving ring 202 loses force, the tension spring 205 will return to its deformed state, thereby achieving the effect of telescoping and pushing the push rod 207 for disassembly.

[0040] The bottom of the surface of the connecting pipe 109 is threadedly connected with a threaded sleeve 108. The bottom of the threaded sleeve 108 is fixedly connected with a self-sinking cup 107. The top of the inner cavity of the box body 101 is provided with a drawplate filter 102. A control box 103 is installed in the inner cavity of the box body 101, and the control box 103 is located at the bottom of the drawplate filter 102. The bottom of the control box 103 is fixedly connected with a mixed-flow fan 105. The bottom of the mixed-flow fan 105 is communicated with a secondary filter cloth bag 106. The bottom of the secondary filter cloth bag 106 is fixedly connected to the inner cavity of the box body 101. The four corners of the bottom of the box body 101 are fixedly connected with rollers 104. Through the setting of the self-sinking cup 107, the large particles inside the entering dust freely fall into the inside of the self-sinking cup 107, so as to realize the primary filtration of the dust. Through the setting of the drawplate filter 102, the effect of secondary filtration of the dust is realized. Then, the dust is collected into the inside of the secondary filter cloth bag 106 through the mixed-flow fan 105, and then the surface of the tablet pressing device is sucked.

[0041] The working principle of the present utility model is as follows: First, push the hand-held rod 302 inward, then the rod 302 enters the inside of the dust suction disc 301. Then, place the dust suction disc 301 into the inner cavity of the second dust suction hose 110 by hand. Then, after reaching the designated position, under the action of the second spring 304, the rod 302 moves outward, and then the rod 302 penetrates to the outside of the second dust suction hose 110. Secondly, control the box 103 to control the start of the box body 101. Then, place the sample tablet pressed by the tablet press on the dust suction disc 301, and then suck away the dust through the dust inlet hole 303. Then, clean the dust through the second dust suction hose 110. Then, the large-particle dust falls into the self-sinking cup 107 by gravity. Then, the mixed-flow fan 105 sucks the dust into the inside of the dust suction air duct 111, and then performs secondary filtration through the drawplate filter 102. Then, it reaches the mixed-flow fan 105, and then the secondary filter cloth bag 106 performs secondary filtration on the dust. At the same time, the operator can control the operation of the box body 101 through the control box 103. Finally, after the dust suction disc 301 is used, pull the moving ring 202 to the right by hand. The movement of the moving ring 202 causes the tension spring 205 to be stretched, and then drives the push rod 207 to move. Then, when the push rod 207 reaches the position of the rod 302, under the action of the first spring 206, the push rod 207 moves inward, and then pushes the rod 302 to move inward. The elastic coefficient of the first spring 206 is greater than that of the second spring 304, so as to realize the effect of disassembling and cleaning the dust suction disc 301.

[0042] Second Embodiment

[0043] See Appendix Figure 1 and Appendix Figure 6, on the basis of the first embodiment, the disassembly mechanism 2 and the installation mechanism 3 in this embodiment are replaced by an internal-threaded cover 401 and a dust suction piece 404. A rigid external-threaded pipe is provided on the outer side of the second dust suction hose 110. The disassembly mechanism is the internal-threaded cover 401. A dust suction piece mounting plate 402 and a sample support ring 403 are provided on the top of the internal-threaded cover 401. The sample support ring 403 can effectively prevent the sample from falling. The installation mechanism is the dust suction piece 404. The dust suction piece 404 is a circular component and is provided with a plurality of dust suction holes. The outer circumferential surface of the dust suction piece 404 fits with the inner wall of the internal-threaded cover 401. The dust suction piece 404 is inside the internal-threaded cover 401 and is fixed by the dust suction piece mounting plate 402. During use, place the dust suction piece 404 into the internal-threaded cover 401 by hand, and connect the internal-threaded cover 401 with the rigid external-threaded pipe to achieve quick disassembly and installation.

[0044] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent replacements or changes, and should be covered within the protection scope of the present invention.

Claims

1. A dust collecting device for tableting and sample preparation suitable for an X-ray fluorescence spectrometer, comprising a dust collecting device body (1), characterized in that: The dust suction device body (1) comprises a box body (101); the top of the right side of the box body (101) is connected to a dust suction duct (111); the right side of the dust suction duct (111) is connected to a connecting pipe (109); the top of the inner cavity of the connecting pipe (109) is connected to a second dust suction hose (110); and the right side of the inner cavity of the second dust suction hose (110) is installed with a disassembly mechanism (2) and an installation mechanism (3); The bottom of the surface of the connecting pipe (109) is threadedly connected to a threaded sleeve (108), the bottom of the threaded sleeve (108) is fixedly connected to a self-sinking cup (107), the top of the inner cavity of the box body (101) is installed with a pumping plate filter (102), the inner cavity of the box body (101) is installed with a control box (103), and the control box (103) is located at the bottom of the pumping plate filter (102), the bottom of the control box (103) is fixedly connected to a mixed flow fan (105), the bottom of the mixed flow fan (105) is connected to a secondary filter bag (106), and the bottom of the secondary filter bag (106) is fixedly connected to the inner cavity of the box body (101).

2. The tableting sample preparation dust collection device suitable for X-ray fluorescence spectrometer according to claim 1, characterized in that: The disassembly mechanism (2) comprises a movable ring (202), the inner cavity of the movable ring (202) is movably connected to a push rod (207), the inner side of the push rod (207) is movably connected to the surface of the second dust suction hose (110), the outer side of the push rod (207) is fixedly connected to a circular plate (203), the outer side of the circular plate (203) is fixedly connected to a pull ring (204), and the pull ring (204) is an annular structure.

3. The tableting sample preparation dust collection device suitable for X-ray fluorescence spectrometer according to claim 1, characterized in that: The mounting mechanism (3) comprises a dust suction plate (301), the surface of which is movably connected to the inner cavity of the second dust suction hose (110), the inner cavity of the dust suction plate (301) is movably connected to a clamping rod (302), and the outer side of the clamping rod (302) penetrates to the outer side of the second dust suction hose (110).

4. The dust collecting device for tablet pressing and sample preparation suitable for X-ray fluorescence spectrometer according to claim 3, characterized in that: The inner cavity of the dust collecting disc (301) is provided with a dust inlet hole (303), and the dust inlet hole (303) is in a circular structure.

5. The dust collection device for tablet pressing and sample preparation suitable for X-ray fluorescence spectrometer according to claim 3, characterized in that: The inner side of the inner cavity of the clamping rod (302) is movably connected to a positioning rod (305), and the inner side of the positioning rod (305) is fixedly connected to the inner cavity of the dust collecting disc (301).

6. The dust collection device for tablet pressing and sample preparation suitable for X-ray fluorescence spectrometer according to claim 5, characterized in that: The surface of the positioning rod (305) is sleeved with a second spring (304), the inner side of the second spring (304) is fixedly connected to the inner cavity of the dust collecting disc (301), and the outer side of the second spring (304) is fixedly connected to the inner side of the clamping rod (302).

7. The tableting sample preparation dust collection device suitable for X-ray fluorescence spectrometer according to claim 2, characterized in that: A spring 1 (206) is sleeved on the surface of the push rod (207), the inner side of the spring 1 (206) is fixedly connected to the surface of the push rod (207), and the outer side of the spring 1 (206) is fixedly connected to the inner cavity of the moving ring (202).

8. The tableting sample preparation dust collection device suitable for X-ray fluorescence spectrometer according to claim 1, characterized in that: The surface of the second dust suction hose (110) is sleeved with a tension spring (205), the right side of the tension spring (205) is fixedly connected to the left side of the movable ring (202), the left side of the tension spring (205) is fixedly connected to a fixed sleeve (201), and the inner cavity of the fixed sleeve (201) is fixedly connected to the surface of the second dust suction hose (110).

9. The tablet pressing and sample preparation dust collection device suitable for X-ray fluorescence spectrometer according to claim 1, characterized in that: Rollers (104) are fixedly connected to the four corners of the bottom of the box body (101).

10. The tableting sample preparation dust collection device suitable for X-ray fluorescence spectrometer according to claim 2, characterized in that: The number of the push rods (207) is no less than 2.

Images