CN116698505A - Automatic sampling device and sampling method for permanent magnet metal material - Google Patents
Automatic sampling device and sampling method for permanent magnet metal material Download PDFInfo
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- CN116698505A CN116698505A CN202310988284.9A CN202310988284A CN116698505A CN 116698505 A CN116698505 A CN 116698505A CN 202310988284 A CN202310988284 A CN 202310988284A CN 116698505 A CN116698505 A CN 116698505A
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- 238000005070 sampling Methods 0.000 title claims abstract description 458
- 239000007769 metal material Substances 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 50
- 239000000843 powder Substances 0.000 claims abstract description 22
- 238000007664 blowing Methods 0.000 claims abstract description 6
- 238000004140 cleaning Methods 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 112
- 238000002347 injection Methods 0.000 claims description 21
- 239000007924 injection Substances 0.000 claims description 21
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 20
- 150000002910 rare earth metals Chemical class 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 20
- 239000000956 alloy Substances 0.000 claims description 16
- 229910045601 alloy Inorganic materials 0.000 claims description 16
- 238000003825 pressing Methods 0.000 claims description 12
- 238000010926 purge Methods 0.000 claims description 11
- 230000001681 protective effect Effects 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1031—Sampling from special places
Abstract
The application belongs to the field of metal powder equipment, and relates to an automatic sampling device and a sampling method for a permanent magnetic metal material, wherein the automatic sampling device comprises a sampling tube body, a sampling valve body, a cylinder, a gas protection pipeline, a sampling pipeline, a gas replacement pipeline and a sampling bag; the sampling pipe body is fixed on the material dropping tank, a sampling groove is processed at the sampling end of the sampling pipe body, and a sampling passage communicated with the sampling groove is arranged at the axial center of the sampling pipe body; the sampling valve body is connected with the sampling tube body, a sampling passage, a sampling chamber, an air inlet passage and a sampling outlet passage are arranged in the sampling valve body, and the air cylinder is arranged on the sampling valve body to switch the sampling passage on or off; the gas protection pipeline is communicated with the air inlet passage; the sampling pipeline is communicated with the sample outlet passage, the lower end of the gas replacement pipeline stretches into the sampling bag, and the opening end of the sampling bag is sealed. The sampling device improves the safety and accuracy of sampling, and can also realize cleaning and back blowing after the sampling is finished, so that no sample residue in the pipeline is ensured.
Description
Technical Field
The application belongs to the field of metal powder equipment, and relates to an automatic sampling device and a sampling method for a permanent magnet metal material.
Background
The permanent magnet material is a magnetic functional material that can maintain its magnetic field without consuming energy. The rare earth permanent magnet material is the main product of the permanent magnet material. Rare earth permanent magnet materials, i.e. rare earth permanent magnet alloys, should, as the name implies, contain rare earth metals as alloying elements.
The rare earth permanent magnetic material is a magnetic material prepared by compacting and sintering alloy composed of samarium and neodymium mixed rare earth metal and transition metal (such as cobalt, iron and the like) by a powder metallurgy method and magnetizing by a magnetic field. Because it has better permanent magnetism characteristic and burns after encountering natural oxidation of air; therefore, manual sampling is mostly adopted for the prepared rare earth permanent magnet alloy powder, and then quality detection is carried out on the sample. However, manual sampling suffers from the following drawbacks: (1) Because of the difference of the operation skills of each person, the defects of powder loss, powder oxidation, ignition combustion and the like can be caused in powder sampling; (2) Because of these individual differences, manual sampling is low in reliability, accuracy and production efficiency.
Disclosure of Invention
In view of the above technical problems, the present application aims to provide an automatic sampling device for permanent magnetic metal materials, in which a sample can be continuously protected by a protective gas during a sampling process, so that the permanent magnetic metal materials are prevented from burning after being oxidized by air, and the safety and accuracy of sampling are improved; after the sampling is finished, cleaning and back blowing can be realized, no sample residue is ensured in the pipeline, and the next sampling sample can reach more accurate inspection results.
In order to achieve the above purpose, the application adopts the following technical scheme:
an automatic sampling device for permanent magnetic metal materials comprises a sampling tube body, a sampling valve body, a cylinder, a gas protection pipeline, a sampling pipeline, a gas replacement pipeline and a sampling bag; the sampling end of the sampling tube body penetrates through the material dropping tank at the bottom of the separator to extend into the material dropping tank, the sampling tube body is fixed on the material dropping tank, the sampling end of the sampling tube body is provided with a sampling groove, and the axis position of the sampling tube body is provided with a sampling passage communicated with the sampling groove;
the sampling valve body is connected with the sampling tube body, and a sampling passage communicated with the sampling passage, a sampling chamber communicated with the sampling passage, an air inlet passage communicated with the sampling chamber and a sampling outlet passage are arranged in the sampling valve body;
the cylinder is arranged on the sampling valve body, the end part of a driving rod of the cylinder stretches into the sampling chamber, a piston is arranged at the end part of the driving rod, and the piston performs switching of opening or closing of the sampling passage through linear reciprocating motion of the driving rod;
the gas inlet end of the gas protection pipeline is connected with the protection gas, the gas outlet end of the gas protection pipeline is connected with the sampling valve body, and the gas outlet end of the gas protection pipeline is communicated with the gas inlet passage of the sampling valve body;
the upper end of the sampling pipeline is connected to the sampling valve body and communicated with a sampling outlet passage of the sampling valve body, the lower end of the sampling pipeline extends into the sampling bag, and a second valve is arranged on the sampling pipeline;
the upper end of the gas replacement pipeline is arranged outside the sampling bag, the lower end of the gas replacement pipeline stretches into the sampling bag, and the gas replacement pipeline is provided with a vacuum conveyer and a first valve;
the open end of the sampling bag is sealed.
Preferably, the automatic sampling device of the present application further comprises a sampling box in which the sampling bag is disposed, and an internal volume of the sampling box is smaller than a maximum volume of the sampling bag.
As a preferable mode of the application, the sample injection passage and the sampling passage are arranged on the same horizontal line, the air inlet passage is arranged at two sides of the sample injection chamber, and the sample outlet passage is arranged at the bottom of the sample injection chamber and is vertical to the sample injection passage; the sample injection chamber is provided with a white steel bushing at one end close to the sample injection passage, a gasket is arranged in the white steel bushing, and the gasket is used for sealing between the piston and the sample injection passage.
As the optimization of the application, butterfly valves are arranged at the upper end and the lower end of the material dropping tank, a pipe body mounting seat is arranged on the side wall of the material dropping tank, the sampling pipe body is sleeved with a first O-shaped ring and then is mounted on the pipe body mounting seat, and the sampling pipe body is pressed and fixed on the pipe body mounting seat through a first pressing plate; the sampling tube body is pressed and fixed on the sampling valve body through a second pressing plate; a base plate is arranged between the sampling valve body and the air cylinder, a second O-shaped ring is arranged between the base plate and the sampling valve body, the end part of a driving rod of the air cylinder penetrates through the base plate and stretches into the sample injection chamber, and the sealing and the connection between the sampling valve body and the air cylinder are realized through the base plate; the sampling pipeline is provided with a second sealing gasket at the joint of the sampling pipeline and the sampling passage of the sampling valve body, and the sampling pipe passage is pressed and fixed on the sampling valve body through a quick-mounting joint and a third pressing plate.
As the preferable mode of the application, the gas protection pipeline comprises a total gas inlet pipeline and two branch gas inlet pipelines communicated with the total gas inlet pipeline, wherein the gas inlet end of the total gas inlet pipeline is connected with protection gas, and the total gas inlet pipeline is provided with a valve; the air outlet ends of the two sub-air inlet pipelines are respectively connected to two sides of the sampling valve body and are communicated with air inlet passages in the sampling valve body, which are positioned at two sides of the sample inlet chamber.
In the application, the sampling end of the sampling tube body is also provided with a purging passage at the end, and the purging passage is communicated with the sampling groove and the sampling passage and is arranged at the axial center of the sampling tube body.
As a preferable mode of the application, the sample box comprises a base, a left box door and a right box door; the sampling bag placing groove is formed in the base, the left box door and the right box door are arranged on the left side and the right side of the base through hinges, grooves matched with the tube binding device are formed in the upper ends of the left box door and the right box door, rubber strips are arranged on the periphery of the left box door and the right box door, the bottom of the sampling bag is arranged in the sampling bag placing groove, the tube binding device is fixed at the opening end through a binding belt, and the periphery of the sampling bag is clamped through the rubber strips on the periphery of the left box door and the periphery of the right box door; the left box door and the right box door are locked through the snap locks, two through holes are formed in the tube bundling device, the sampling pipeline penetrates through the through holes of the tube bundling device to extend into the sampling bag, and the gas replacement pipeline penetrates through the other through hole of the tube bundling device to extend into the sampling bag.
As the preferable mode of the application, the sampling pipeline is a copper pipe, the protective gas comprises nitrogen, the first valve and the second valve are all pneumatic ball valves, and the first sealing gasket, the second sealing gasket and the gasket are all made of corrosion-resistant polytetrafluoroethylene materials.
The application also provides a sampling method adopting the automatic sampling device for the permanent magnet metal material, which comprises the following steps:
(1) Inserting a sampling pipeline and a gas replacement pipeline into a sampling bag, and sealing the opening end of the sampling bag;
(2) Opening the first valve and the second valve to enable the sampling valve body, the sampling bag and the gas replacement pipeline to be communicated with each other, simultaneously opening the vacuum conveyor to enable air in the sampling valve body, the sampling pipeline and the sampling bag to be emptied, then opening the gas protection pipeline to be filled with protection gas, repeating the operation for 2-3 times, and then closing the first valve to enable the air in the sampling device to be replaced by the protection gas;
(3) The valve at the upper end of the material dropping tank is opened, so that rare earth permanent magnet alloy powder falls into a sampling groove of a sampling tube body, a driving rod of a cylinder retreats, a sampling passage in the sampling valve body is communicated with a sampling chamber, the rare earth permanent magnet alloy powder horizontally passes through the sampling passage and the sampling chamber in the sampling valve body due to high-low pressure difference and then rapidly and vertically enters a sampling passage in the sampling valve body, then enters a sampling bag through a sampling pipeline, then a piston is closed, and a gas protection pipeline is driven into a pulse corresponding to the sampling valve body during the period, so that protective gas is fully mixed into the rare earth permanent magnet alloy powder, and the sampling bag is taken away, so that the sampling is completed;
(4) And (3) cleaning a pipeline: closing the second valve, opening the gas protection pipeline to charge protection gas, after the gas pressure in the sampling valve body is increased to be greater than the internal pressure of the material dropping tank, opening the piston to enable the sampling pipeline, the sampling valve body and the material dropping tank to generate a passage, and back blowing for at least 2 seconds to rapidly send the residual sample in the pipeline back to the material dropping tank, so that no sample remains in the pipeline.
As the optimization of the application, the sampling bag is required to be placed in the sampling box before sampling, the bottom of the sampling bag is arranged in the sampling bag placing groove at the bottom of the sampling box, the opening end is fixed with the tube binding device through the binding belt, and the periphery is clamped through the rubber strips at the periphery of the left box door and the right box door of the sampling box, so that the sampling bag is flatly extruded between the left box door and the right box door; the sampling pipeline and the gas replacement pipeline penetrate through the through hole of the tube bundling device and then are inserted into the sampling bag; and after the sampling is finished, opening the sampling box and taking out the sampling bag.
The application has the following advantages and beneficial effects:
(1) The sampling device provided by the application realizes automatic sampling by means of the pressure difference between the material dropping tank, the sampling tube body and the sampling valve body, has a simple structure, is convenient to use, can realize quantitative material taking by reasonably setting the size of the sampling tank, and avoids powder loss; and the sampling process can ensure sampling in an anaerobic environment, avoid powder oxidation ignition combustion and ensure sampling safety and accuracy of sample detection results.
(2) The purging passage on the sampling tube body of the sampling device provided by the application is communicated with the sampling groove and the sampling passage, and after sampling is finished, the purging and back blowing can be realized by utilizing the gas protection pipeline, so that no sample residue exists in the pipeline, and the next sampling sample can reach a more accurate test result.
(3) The sampling tube body, the material dropping tank and the sampling valve body of the sampling device and the sampling valve body and the sampling pipeline are all fixed by press fitting, so that the rare earth permanent magnet alloy powder remained in the device can be avoided.
(4) The sampling valve body provided by the application is a self-made valve body, and the sampling passage, the sampling chamber, the air inlet passage and the sampling outlet passage in the valve body are of a communication structure, so that smooth sampling can be ensured, and meanwhile, protective gas can be introduced in the sampling process; in addition, the introduced protective gas can improve the sampling efficiency while ensuring the sampling safety in the sampling process, so that the single sampling can be finished by 2-3S.
(5) The sampling device provided by the application is used for avoiding accidental blasting when protective gas is introduced in the sampling process of the sampling bag, and the sampling box is designed by itself, so that the internal volume of the sampling box is smaller than the maximum volume of the sampling bag, and the blasting of the sampling bag is avoided; in addition, the sampling bag standing groove at the bottom of the sampling box and the rubber strips arranged on the periphery can enable the sampling bag to be placed in the sampling box smoothly, so that the sampling bag is guaranteed to be uniformly inflated in the sampling process, and the phenomenon that the sampling bag is exploded due to uneven inflation volume caused by wrinkling of the sampling bag and local position swelling is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it will be apparent that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art; in the drawings:
FIG. 1 is a schematic diagram of the whole structure of an automatic sampling device for permanent magnet metal materials;
FIG. 2 is a schematic diagram showing the connection of the sampling valve body, the sampling tube body and the cylinder;
FIG. 3 is a schematic view of the internal structure of the sampling valve according to the present application;
FIG. 4 is a schematic view of the overall structure of the sample box of the present application;
FIG. 5 is a schematic view of a sampling bag of the present application in a sample tank.
Reference numerals: the sampling tube body 1, the sampling valve body 2, the cylinder 3, the gas protection pipeline 4, the sampling pipeline 5, the gas replacement pipeline 6, the sampling bag 7, the sampling box 8, the material dropping tank 9, the vacuum conveyer 10, the first valve 11, the second valve 12, the first O-ring 13, the first pressing plate 14, the first sealing pad 15, the second pressing plate 16, the backing plate 17, the second O-ring 18, the second sealing pad 19, the quick connector 20, the third pressing plate 21, the tube binding device 22, the binding belt 23, the sampling passage 101, the purging passage 102, the sampling passage 201, the sampling chamber 202, the air inlet passage 203, the sample outlet passage 204, the white steel bushing 205, the gasket 206, the piston 301, the total air inlet pipeline 401, the gas dividing pipeline 402, the base 801, the left box door 802, the right box door 803, the hinge 804, the rubber strip 805, the snap lock 806, the handle 807, the tube body mounting seat 901 and the sampling bag placing groove 8011.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; the two components can be mechanically connected, can be directly connected or can be indirectly connected through an intermediate medium, and can be communicated with each other. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
As shown in fig. 1 to 5, the permanent magnetic metal material automatic sampling device provided in this embodiment includes a sampling tube body 1, a sampling valve body 2, a cylinder 3, a gas protection pipeline 4, a sampling pipeline 5, a gas replacement pipeline 6, a sampling bag 7, and a sampling box 8; the sampling end of the sampling tube body 1 penetrates through a material dropping tank 9 at the bottom of the separator to extend into the material dropping tank, the sampling tube body 1 is fixed on the material dropping tank 9, a sampling groove (not marked) is processed at the sampling end of the sampling tube body 1, a valve at the upper end of the material dropping tank 9 is opened, rare earth permanent magnet alloy powder is discharged from the separator, and part of rare earth permanent magnet alloy powder (sample) A falls into the sampling groove in the material dropping tank 9; a sampling passage 101 communicated with the sampling groove is arranged at the axial center of the sampling tube body 1;
the sampling valve body 2 is connected with the sampling tube body 1, and a sampling passage 201 communicated with the sampling passage 101, a sampling chamber 202 communicated with the sampling passage, an air inlet passage 203 communicated with the sampling chamber and a sampling outlet passage 204 are arranged in the sampling valve body 2; the sample injection passage 201 and the sample injection passage 101 are on the same horizontal line, the air inlet passage 203 is arranged at two sides of the sample injection chamber 202, the sample outlet passage 204 is arranged at the bottom of the sample injection chamber 202 and is perpendicular to the sample injection passage 201;
the cylinder 3 is arranged on the sampling valve body 2, the end part of a driving rod of the cylinder 3 extends into the sampling chamber 202, a piston 301 is arranged at the end part of the driving rod, and the piston performs switching of opening or closing of the sampling passage 201 through linear reciprocating motion of the driving rod;
the gas inlet end of the gas protection pipeline 4 is connected with the protection gas, the gas outlet end of the gas protection pipeline is connected with the sampling valve body 2, and the gas outlet end of the gas protection pipeline is communicated with the gas inlet passage 203 of the sampling valve body 2;
the upper end of the sampling pipeline 5 is connected to the sampling valve body 2 and is communicated with a sampling outlet passage 204 of the sampling valve body 2, the lower end of the sampling pipeline 5 extends into the sampling bag 7, and a second valve 12 is arranged on the sampling pipeline 5;
the upper end of the gas replacement pipeline 6 is arranged outside the sampling bag 7, the lower end of the gas replacement pipeline 6 stretches into the sampling bag 7, and the gas replacement pipeline 6 is provided with a vacuum conveyer 10 and a first valve 11;
the sampling bag 7 is arranged in the sampling box 8, and the opening end of the sampling bag 7 is sealed;
the internal volume of the sample box 8 is smaller than the maximum volume of the sampling bag 7, and the explosion of the sampling bag 7 is avoided.
Further, in this embodiment, the upper and lower both ends of fall material jar 9 all are equipped with the valve, the valve is the butterfly valve preferably, and during the sample, open the butterfly valve of fall material jar 9 upper end, close the butterfly valve of fall material jar 9 lower extreme, be high-pressure environment in the fall material jar, the reading of the manometer on the fall material jar is 40Kpa (standard atmospheric pressure manometer reading is 0), at this moment can realize automatic getting (rare earth permanent magnet alloy powder) with the help of the pressure difference between fall material jar 9 and sampling tube body 1, the sampling valve body 2, after getting the material, open the butterfly valve of fall material jar 9 lower extreme, accomplish the discharge can.
Further, as shown in fig. 2, in this embodiment, the first valve 11 and the second valve 12 are pneumatic ball valves, the sample injection chamber 202 is provided with a white steel bushing 205 at one end close to the sample injection passage 201, a gasket 206 is installed in the white steel bushing 205, and the gasket 206 is used for realizing sealing between the piston 301 and the sample injection passage 201.
Further, as shown in fig. 2, in this embodiment, a pipe body mounting seat 901 is provided on a side wall of the material dropping tank 9, the sampling pipe body 1 is sleeved with a first O-ring 13 and then mounted on the pipe body mounting seat 901, and the sampling pipe body 1 is press-mounted and fixed on the pipe body mounting seat 901 by a first pressing plate 14 and a bolt (not shown); a first sealing gasket 15 is arranged at the joint of the sampling tube body 1 and the sampling passage 201 of the sampling valve body 2, and the sampling tube body 1 is pressed and fixed on the sampling valve body 2 through a second pressing plate 16 and bolts (not shown); a base plate 17 is arranged between the sampling valve body 2 and the air cylinder 3, and a second O-shaped ring 18 is arranged between the base plate 17 and the sampling valve body 2; the end part of the driving rod of the air cylinder 3 penetrates through the base plate 17 and stretches into the sample injection chamber 202, and the sealing and connection between the sampling valve body 2 and the air cylinder 3 are realized through the base plate 17; the connection part of the sampling pipeline 5 and the sampling passage 204 at the bottom of the sampling valve body 2 is provided with a second sealing gasket 19, and the sampling pipeline 1 is pressed and fixed on the sampling valve body 2 through a quick connector 20, a third pressing plate 21 and bolts (not shown).
It should be noted that, the installation modes of the sampling tube body 1, the cylinder 3 and the sampling pipeline 5 in the present application are not limited to the above-mentioned provided press-fitting installation modes, and those skilled in the art can also adopt other well-known manners for installation and fixation, and the above-mentioned press-fitting fixation has the advantage of avoiding powder remaining inside the device.
Further, as shown in fig. 2, in this embodiment, the sampling end of the sampling tube body 1 is further provided with a purge passage 102 at the end, the purge passage 102 is communicated with the sampling groove and the sampling passage 101, and is also disposed at the axial center of the sampling tube body 1, similar to the sampling passage 101, so that the purge can be ensured to be clean during the design of purging, and the sample residue is avoided.
Further, in this embodiment, the shielding gas includes nitrogen, the sampling pipe 5 is preferably a copper pipe, and the cylinder 3 is preferably a thin-walled cylinder; the first gasket 15, the second gasket 19, and the gasket 206 are preferably made of a corrosion-resistant polytetrafluoroethylene material.
It should be noted that the foregoing description of the present application is merely illustrative, and not intended to limit the present application, and those skilled in the art may use a conventional rubber gasket or gasket, and the sampling line may use other materials.
Further, as shown in fig. 3, in this embodiment, the gas protection pipeline 4 includes a main gas inlet pipeline 401, and two branch gas inlet pipelines 402 that are communicated with the main gas inlet pipeline 401, where the gas inlet of the main gas inlet pipeline 401 is connected with a protection gas, a valve (not shown) is disposed on the main gas inlet pipeline, the valve is opened, and the protection gas is introduced into the gas protection pipeline 4; the two air outlet ends of the split air inlet pipeline 402 are respectively connected to two sides of the sampling valve body 2, and are communicated with the air inlet passages 203 in the sampling valve body 2 at two sides of the sample inlet chamber 202.
Further, as shown in fig. 4 and 5, in the present embodiment, the sample box 8 includes a base 801, a left box door 802, and a right box door 803; the base 801 is provided with a sampling bag placing groove 8011, the left box door 802 and the right box door 803 are arranged on the left side and the right side of the base 801 through hinges 804, grooves (not marked) matched with the tube bunching device 22 are formed in the upper ends of the left box door 802 and the right box door 803, rubber strips 805 are arranged on the periphery of the left box door 802 and the right box door 803, the bottom of the sampling bag 7 is arranged in the sampling bag placing groove 8011, the tube bunching device 22 is fixed at the opening end through a binding belt 23, and the periphery is clamped through the rubber strips 805 on the periphery of the left box door and the right box door; the left box door and the right box door are locked by a snap lock 806, two through holes are arranged on the tube bundling device 22, the sampling pipeline 5 penetrates through the through holes of the tube bundling device and stretches into the sampling bag 7, and the gas replacement pipeline 6 penetrates through the other through holes of the tube bundling device and stretches into the sampling bag 7.
Further, as shown in fig. 4 and 5, in this embodiment, handles 807 are disposed on the left door and the right door, and the sampling pipe 5 is in interference fit or welded with the through hole of the pipe binding device 22, so as to realize sealing; the gas replacement pipeline 6 is in interference fit or welding with the through hole of the tube bundling device 22, so that sealing is realized.
The application also provides a sampling method adopting the automatic sampling device for the permanent magnet metal material, which comprises the following steps:
(1) The sampling pipeline 5 and the gas replacement pipeline 6 penetrate through the tube bundling device 22 and are inserted into the sampling bag 7, the opening end of the sampling bag 7 is sealed and is placed into the sampling box 8, the sampling box 8 is closed to enable the sampling bag 7 to be clamped between the left box door and the right box door, and the flatness and the wrinkle free of the sampling bag are ensured;
(2) Opening a first valve 11 and a second valve 12 to enable the sampling valve body 2, the sampling bag 7 and the gas replacement pipeline 6 to be communicated with each other, simultaneously opening a vacuum conveyer 10 to enable air in the sampling valve body 2, the sampling pipeline 5 and the sampling bag 7 to be emptied, opening a gas protection pipeline 4 to be filled with protective gas, repeating the operation for 2-3 times, and then closing the first valve 11 to enable the air in the sampling device to be replaced by the protective gas;
(3) The valve at the upper end of the material dropping tank 9 is opened, rare earth permanent magnet alloy powder falls into a sampling groove of the sampling tube body 1, a driving rod of the air cylinder 3 retreats, a gap is formed between a piston 301 and a gasket 206 in the sampling valve body 2, a sampling passage 201 in the sampling valve body 2 is communicated with a sampling chamber 202, the rare earth permanent magnet alloy powder horizontally passes through the sampling passage and the sampling chamber in the sampling valve body due to high-low pressure difference and then rapidly and vertically enters a sampling passage 204 in the sampling valve body, then enters a sampling bag 7 of the sampling box through a sampling pipeline 5, then the piston 301 is closed, the opening and closing time of the piston is controlled to be 2-3 seconds (for example, the piston is opened in 12:00:00, then the piston is closed in 12:00:02 or 12:00:03), and during the period, a gas protection pipeline 4 is used for driving a pulse into the sampling valve body 2, so that the protection gas is fully mixed into the rare earth permanent magnet alloy powder, and the protection effect is achieved; the sampling box 8 is opened to take out the sampling bag 7, and this sampling is completed.
(4) And (3) cleaning a pipeline: the second valve 12 is closed, the gas protection pipeline 4 is opened to charge protection gas, after the gas pressure in the sampling valve body 2 is increased to be greater than the internal pressure of the material dropping tank, the piston 301 is opened, the sampling pipeline, the sampling valve body and the material dropping tank generate a passage, the back blowing is carried out for 2-5 seconds, and the residual sample in the pipeline is rapidly returned to the material dropping tank, so that the cleaning effect is achieved, and no sample remains in the pipeline.
The foregoing is a specific embodiment of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and it is intended to cover the present application. Therefore, the protection scope of the application is subject to the protection scope of the claims.
Claims (10)
1. The automatic sampling device for the permanent magnetic metal material is characterized by comprising a sampling tube body, a sampling valve body, an air cylinder, a gas protection pipeline, a sampling pipeline, a gas replacement pipeline and a sampling bag; the sampling end of the sampling tube body penetrates through the material dropping tank at the bottom of the separator to extend into the material dropping tank, the sampling tube body is fixed on the material dropping tank, the sampling end of the sampling tube body is provided with a sampling groove, and the axis position of the sampling tube body is provided with a sampling passage communicated with the sampling groove;
the sampling valve body is connected with the sampling tube body, and a sampling passage communicated with the sampling passage, a sampling chamber communicated with the sampling passage, an air inlet passage communicated with the sampling chamber and a sampling outlet passage are arranged in the sampling valve body;
the cylinder is arranged on the sampling valve body, the end part of a driving rod of the cylinder stretches into the sampling chamber, a piston is arranged at the end part of the driving rod, and the piston performs switching of opening or closing of the sampling passage through linear reciprocating motion of the driving rod;
the gas inlet end of the gas protection pipeline is connected with the protection gas, the gas outlet end of the gas protection pipeline is connected with the sampling valve body, and the gas outlet end of the gas protection pipeline is communicated with the gas inlet passage of the sampling valve body;
the upper end of the sampling pipeline is connected to the sampling valve body and communicated with a sampling outlet passage of the sampling valve body, the lower end of the sampling pipeline extends into the sampling bag, and a second valve is arranged on the sampling pipeline;
the upper end of the gas replacement pipeline is arranged outside the sampling bag, the lower end of the gas replacement pipeline stretches into the sampling bag, and the gas replacement pipeline is provided with a vacuum conveyer and a first valve;
the open end of the sampling bag is sealed.
2. The automatic sampling device for permanent magnet metal material according to claim 1, further comprising a sampling box, wherein the sampling bag is disposed in the sampling box, and wherein the internal volume of the sampling box is smaller than the maximum volume of the sampling bag.
3. The automatic sampling device for permanent magnetic metal materials according to claim 1, wherein the sampling passage and the sampling passage are on the same horizontal line, the air inlet passage is arranged at two sides of the sampling chamber, the sampling outlet passage is arranged at the bottom of the sampling chamber and is perpendicular to the sampling passage; the sample injection chamber is provided with a white steel bushing at one end close to the sample injection passage, a gasket is arranged in the white steel bushing, and the gasket is used for sealing between the piston and the sample injection passage.
4. The automatic sampling device for the permanent magnetic metal materials according to claim 1, wherein butterfly valves are arranged at the upper end and the lower end of the material dropping tank, a pipe body mounting seat is arranged on the side wall of the material dropping tank, the sampling pipe body is sleeved with a first O-shaped ring and then is mounted on the pipe body mounting seat, and the sampling pipe body is pressed and fixed on the pipe body mounting seat through a first pressing plate; the sampling tube body is pressed and fixed on the sampling valve body through a second pressing plate; a base plate is arranged between the sampling valve body and the air cylinder, a second O-shaped ring is arranged between the base plate and the sampling valve body, the end part of a driving rod of the air cylinder penetrates through the base plate and stretches into the sample injection chamber, and the sealing and the connection between the sampling valve body and the air cylinder are realized through the base plate; the sampling pipeline is provided with a second sealing gasket at the joint of the sampling pipeline and the sampling passage of the sampling valve body, and the sampling pipe passage is pressed and fixed on the sampling valve body through a quick-mounting joint and a third pressing plate.
5. The automatic sampling device for permanent magnetic metal materials according to claim 1, wherein the gas protection pipeline comprises a total gas inlet pipeline and two branch gas inlet pipelines communicated with the total gas inlet pipeline, the gas inlet end of the total gas inlet pipeline is connected with protection gas, and the total gas inlet pipeline is provided with a valve; the air outlet ends of the two sub-air inlet pipelines are respectively connected to two sides of the sampling valve body and are communicated with air inlet passages in the sampling valve body, which are positioned at two sides of the sample inlet chamber.
6. The automatic sampling device for permanent magnetic metal materials according to claim 1, wherein the sampling end of the sampling tube body is further provided with a purging passage at the end, and the purging passage is communicated with the sampling groove and the sampling passage and is arranged at the axial center of the sampling tube body.
7. The automatic sampling device for permanent magnetic metal material according to claim 2, wherein the sampling box comprises a base, a left box door and a right box door; the sampling bag placing groove is formed in the base, the left box door and the right box door are arranged on the left side and the right side of the base through hinges, grooves matched with the tube binding device are formed in the upper ends of the left box door and the right box door, rubber strips are arranged on the periphery of the left box door and the right box door, the bottom of the sampling bag is arranged in the sampling bag placing groove, the tube binding device is fixed at the opening end through a binding belt, and the periphery of the sampling bag is clamped through the rubber strips on the periphery of the left box door and the periphery of the right box door; the left box door and the right box door are locked through the snap locks, two through holes are formed in the tube bundling device, the sampling pipeline penetrates through the through holes of the tube bundling device to extend into the sampling bag, and the gas replacement pipeline penetrates through the other through hole of the tube bundling device to extend into the sampling bag.
8. The automatic sampling device for permanent magnetic metal materials according to claim 4, wherein the sampling pipeline is a copper pipe, the protective gas comprises nitrogen, the first valve and the second valve are pneumatic ball valves, and the first sealing gasket, the second sealing gasket and the gasket are made of corrosion-resistant polytetrafluoroethylene materials.
9. A method of sampling using the permanent magnet metal material automatic sampling device of claim 1, comprising the steps of:
(1) Inserting a sampling pipeline and a gas replacement pipeline into a sampling bag, and sealing the opening end of the sampling bag;
(2) Opening the first valve and the second valve to enable the sampling valve body, the sampling bag and the gas replacement pipeline to be communicated with each other, simultaneously opening the vacuum conveyor to enable air in the sampling valve body, the sampling pipeline and the sampling bag to be emptied, then opening the gas protection pipeline to be filled with protection gas, repeating the operation for 2-3 times, and then closing the first valve to enable the air in the sampling device to be replaced by the protection gas;
(3) The valve at the upper end of the material dropping tank is opened, so that rare earth permanent magnet alloy powder falls into a sampling groove of a sampling tube body, a driving rod of a cylinder retreats, a sampling passage in the sampling valve body is communicated with a sampling chamber, the rare earth permanent magnet alloy powder horizontally passes through the sampling passage and the sampling chamber in the sampling valve body due to high-low pressure difference and then rapidly and vertically enters a sampling passage in the sampling valve body, then enters a sampling bag through a sampling pipeline, then a piston is closed, and a gas protection pipeline is driven into a pulse corresponding to the sampling valve body during the period, so that protective gas is fully mixed into the rare earth permanent magnet alloy powder, and the sampling bag is taken away, so that the sampling is completed;
(4) And (3) cleaning a pipeline: closing the second valve, opening the gas protection pipeline to charge protection gas, after the gas pressure in the sampling valve body is increased to be greater than the internal pressure of the material dropping tank, opening the piston to enable the sampling pipeline, the sampling valve body and the material dropping tank to generate a passage, and back blowing for at least 2 seconds to rapidly send the residual sample in the pipeline back to the material dropping tank, so that no sample remains in the pipeline.
10. The method of claim 9, wherein the sampling bag is placed in the sampling box before sampling, the bottom of the sampling bag is arranged in a sampling bag placing groove at the bottom of the sampling box, the opening end is fixed with a tube binding device through a binding belt, the periphery is clamped by rubber strips at the periphery of a left box door and a right box door of the sampling box, and the sampling bag is flatly extruded between the left box door and the right box door; the sampling pipeline and the gas replacement pipeline penetrate through the through hole of the tube bundling device and then are inserted into the sampling bag; and after the sampling is finished, opening the sampling box and taking out the sampling bag.
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| CN202310988284.9A CN116698505B (en) | 2023-08-08 | 2023-08-08 | Automatic sampling device and sampling method for permanent magnet metal material |
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| CN202310988284.9A CN116698505B (en) | 2023-08-08 | 2023-08-08 | Automatic sampling device and sampling method for permanent magnet metal material |
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Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2655219Y (en) * | 2003-10-22 | 2004-11-10 | 中国石化仪征化纤股份有限公司 | Negative pressure sampler for granular material |
| WO2005043128A1 (en) * | 2003-11-03 | 2005-05-12 | Avalon Engineering Limited | Sampling particulate material |
| CN201421408Y (en) * | 2009-06-01 | 2010-03-10 | 桐乡磊石微粉有限公司 | Automatic powder sampling device |
| CN201594057U (en) * | 2010-02-12 | 2010-09-29 | 吉林市新大科机电技术有限责任公司 | Device for sampling in closed container |
| CN202720137U (en) * | 2012-08-06 | 2013-02-06 | 神华集团有限责任公司 | Sampling device for solid materials |
| CN103512779A (en) * | 2013-07-17 | 2014-01-15 | 多氟多化工股份有限公司 | Sampler and sampling tube thereof |
| CN103743593A (en) * | 2014-01-16 | 2014-04-23 | 攀钢集团攀枝花钢铁研究院有限公司 | Sampling device and method of high-temperature easily-oxidized material |
| CN104198223A (en) * | 2014-08-29 | 2014-12-10 | 中国科学院山西煤炭化学研究所 | Online particle sampling unit of minitype fluidized bed and application thereof |
| CN206248405U (en) * | 2016-12-15 | 2017-06-13 | 安庆市索隆新材料有限公司 | A kind of polyester synthesis reactor sealed sampling device |
| CN106908285A (en) * | 2017-04-06 | 2017-06-30 | 洛阳中硅高科技有限公司 | On-line period device |
| CN207019950U (en) * | 2017-08-18 | 2018-02-16 | 上海石化西尼尔化工科技有限公司 | A kind of vacuum distillation pipeline liquid sampler |
| CN110186718A (en) * | 2019-05-09 | 2019-08-30 | 苏州班顺工业气体设备有限公司 | A kind of carbon molecular sieve hot stove sampling method and device |
| CN211856028U (en) * | 2019-12-24 | 2020-11-03 | 安徽兴锂新能源有限公司 | Lithium salt quick sampling device |
| CN214373644U (en) * | 2021-03-01 | 2021-10-08 | 常州天晟紫金自动化设备有限公司 | Intelligent quantitative sampler |
| CN217765628U (en) * | 2022-07-19 | 2022-11-08 | 中天上材增材制造有限公司 | Sampling device for metal powder |
| CN217901292U (en) * | 2022-03-22 | 2022-11-25 | 山东滨州金盛新材料科技有限责任公司 | Online sampling device in production process of easily-oxidized materials |
| US20220390334A1 (en) * | 2021-06-02 | 2022-12-08 | Atline Aps | Sampling apparatus and use of a sampling apparatus |
| CN115753228A (en) * | 2022-11-02 | 2023-03-07 | 中稀(广西)金源稀土新材料有限公司 | Magnetic material powder process sampling device |
-
2023
- 2023-08-08 CN CN202310988284.9A patent/CN116698505B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2655219Y (en) * | 2003-10-22 | 2004-11-10 | 中国石化仪征化纤股份有限公司 | Negative pressure sampler for granular material |
| WO2005043128A1 (en) * | 2003-11-03 | 2005-05-12 | Avalon Engineering Limited | Sampling particulate material |
| CN201421408Y (en) * | 2009-06-01 | 2010-03-10 | 桐乡磊石微粉有限公司 | Automatic powder sampling device |
| CN201594057U (en) * | 2010-02-12 | 2010-09-29 | 吉林市新大科机电技术有限责任公司 | Device for sampling in closed container |
| CN202720137U (en) * | 2012-08-06 | 2013-02-06 | 神华集团有限责任公司 | Sampling device for solid materials |
| CN103512779A (en) * | 2013-07-17 | 2014-01-15 | 多氟多化工股份有限公司 | Sampler and sampling tube thereof |
| CN103743593A (en) * | 2014-01-16 | 2014-04-23 | 攀钢集团攀枝花钢铁研究院有限公司 | Sampling device and method of high-temperature easily-oxidized material |
| CN104198223A (en) * | 2014-08-29 | 2014-12-10 | 中国科学院山西煤炭化学研究所 | Online particle sampling unit of minitype fluidized bed and application thereof |
| CN206248405U (en) * | 2016-12-15 | 2017-06-13 | 安庆市索隆新材料有限公司 | A kind of polyester synthesis reactor sealed sampling device |
| CN106908285A (en) * | 2017-04-06 | 2017-06-30 | 洛阳中硅高科技有限公司 | On-line period device |
| CN207019950U (en) * | 2017-08-18 | 2018-02-16 | 上海石化西尼尔化工科技有限公司 | A kind of vacuum distillation pipeline liquid sampler |
| CN110186718A (en) * | 2019-05-09 | 2019-08-30 | 苏州班顺工业气体设备有限公司 | A kind of carbon molecular sieve hot stove sampling method and device |
| CN211856028U (en) * | 2019-12-24 | 2020-11-03 | 安徽兴锂新能源有限公司 | Lithium salt quick sampling device |
| CN214373644U (en) * | 2021-03-01 | 2021-10-08 | 常州天晟紫金自动化设备有限公司 | Intelligent quantitative sampler |
| US20220390334A1 (en) * | 2021-06-02 | 2022-12-08 | Atline Aps | Sampling apparatus and use of a sampling apparatus |
| CN217901292U (en) * | 2022-03-22 | 2022-11-25 | 山东滨州金盛新材料科技有限责任公司 | Online sampling device in production process of easily-oxidized materials |
| CN217765628U (en) * | 2022-07-19 | 2022-11-08 | 中天上材增材制造有限公司 | Sampling device for metal powder |
| CN115753228A (en) * | 2022-11-02 | 2023-03-07 | 中稀(广西)金源稀土新材料有限公司 | Magnetic material powder process sampling device |
Non-Patent Citations (1)
| Title |
|---|
| 陈熔;: "电子工业用剧毒气体分析取样及尾气处理装置的研究", 质量技术监督研究, no. 06 * |
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