CN211504774U - Metal powder sampling device - Google Patents
Metal powder sampling device Download PDFInfo
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- CN211504774U CN211504774U CN201922185886.2U CN201922185886U CN211504774U CN 211504774 U CN211504774 U CN 211504774U CN 201922185886 U CN201922185886 U CN 201922185886U CN 211504774 U CN211504774 U CN 211504774U
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Abstract
The utility model discloses a metal powder sampling device, include: the sampling device comprises a sampling tube, at least two valves arranged on the sampling tube and a sampling tank arranged at the lower end of the sampling tube, wherein a preset interval is arranged between the two valves and used for temporarily storing metal powder; the sampling tube upper end is provided with the fast-assembling structure and is used for being connected with powder discharge gate or discharging device can dismantle, the sampling tube lower extreme also be provided with the fast-assembling structure be used for with the connection can be dismantled to the sample jar. The utility model discloses a sampling device has further reduced the contaminated risk of sample.
Description
Technical Field
The utility model relates to a precision manufacturing technique, more specifically relate to a metal powder sampling device.
Background
At present, metal powder is generally sampled in a powder storage container filled with powder, and two operation methods are generally adopted, namely, the powder storage container is directly opened, and then a stainless steel small spoon is used for manual sampling; in another aspect, the powder is sampled by opening a powder container and inserting a powder sampler, such as the powder sampler disclosed in patents CN105588735A and CN 105136517A.
To meet engineering applications, powders are generally required to have lower oxygen content and less contamination by foreign inclusions; the quality requirement of metal powder for aerospace, such as high-temperature alloy powder for high-pressure turbine disks of aero-engines, is higher. When the powder is stored in the powder storage container, the powder possibly generates moisture absorption and oxygen absorption in the powder storage container, and the sampling is carried out at the moment, so that the instantaneity of a sampling sample cannot be ensured. With the first sampling operation method, the powder storage container is directly opened, which is likely to introduce foreign impurities such as dust in the air and destroy the original storage environment of the powder (for example, the original storage environment is vacuum or inert gas, and the sampling needs to be broken); the stainless steel spoon is used for manual sampling, on one hand, the stainless steel spoon is difficult to ensure to be clean, and on the other hand, impurities such as fibers and sweat stains are easy to introduce through manual operation. In the second sampling operation method, apart from the fact that environmental pollution is easily introduced by opening the powder storage container, due to the complex structure of the sampler, friction is easily generated at each part, and impurities are easily dropped into the powder by the sampler; moreover, the current sampler sometimes cannot sample at one time, and needs repeated sampling for many times, so that the risk of introducing inclusions is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a metal powder sampling device solves the great problem of debris risk of introducing of current sample mode.
In order to achieve the above object, the present invention provides a metal powder sampling device, including: the sampling device comprises a sampling tube, at least two valves arranged on the sampling tube and a sampling tank arranged at the lower end of the sampling tube, wherein a preset interval is arranged between the two valves and used for temporarily storing metal powder;
the sampling tube upper end is provided with the fast-assembling structure and is used for being connected with powder discharge gate or discharging device can dismantle, the sampling tube lower extreme also be provided with the fast-assembling structure be used for with the connection can be dismantled to the sample jar.
Preferably, the two valves are steel ball valves matched with the diameter of the sampling tube, wherein one valve is arranged at the upper end of the sampling tube, and the other valve is arranged at the lower end of the sampling tube.
Preferably, the quick-assembly structure at the upper end of the sampling tube is an internal thread, an external thread or a quick-assembly connector, and the powder discharge port or the discharging device is correspondingly provided with the internal thread, the external thread or the quick-assembly connector.
Preferably, the quick connector is a KF connector or a sanitary connector.
Preferably, the quick-assembly structure at the lower end of the sampling tube is an internal thread, an external thread or a quick-assembly connector, and an opening of the sampling tank is correspondingly provided with an internal thread, an external thread or a quick-assembly connector.
Preferably, the quick connector is a KF connector or a sanitary connector.
Preferably, the sampling tube is a steel tube with the inner diameter of 10-100 mm.
Compared with the prior art, the utility model discloses following beneficial effect has at least:
1. sampling device can install on metal powder discharge gate or discharging device, takes a sample immediately when powder production, has avoided the interior sample of powder storage tank, has guaranteed the real-time validity of powder sample.
2. The sampling device is simple in structure, can adopt standard parts to adapt when necessary, is widely and easily purchased in component application, is convenient to produce and assemble, and improves the production efficiency.
3. The sampling tube is directly arranged on the powder discharge port or the discharging device, the upper valve can be opened firstly to sample and load the powder into a temporary storage space between the two valves, then the upper valve is closed and the lower valve is opened to enable the powder to fall into the sampling tank, the whole process is isolated from the external environment, no impurities such as air dust and the like are introduced, and no people can contact the powder, thereby avoiding the artificial introduction of the impurities and ensuring the cleanliness of the sampled powder; the sampling process is in a closed environment, dust is not raised, and the environment and the human health are protected.
4. The sampling method has wide application range and can be used for sampling in atmosphere, vacuum or argon-filled environment. Under the condition of vacuum or argon filling, vacuumizing or inert gas filling protection can be added in the transition area, and by controlling the switch of the ball valve, the atmosphere can be prevented from being broken, powder is protected, and the purpose of sampling is achieved.
5. The pipe diameter and the length of the sampling part can be adjusted according to the number of required samples and the pipe diameter of the interface, so that a proper amount of samples can be obtained. Therefore, the waste of raw materials is avoided, and the production cost is saved.
Drawings
Fig. 1 is a schematic structural diagram of the sampling device of the present invention.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example one
Fig. 1 shows a specific embodiment of a metal powder sampling device provided by the present invention, which includes: sampling tube 3, set up two at least valves (valve 2 and valve 4) on sampling tube 3 and set up in sampling jar 5 of sampling tube 3 lower extreme, be provided with a preset interval between two valves (valve 2 and valve 4) and be used for temporary storage metal powder.
Wherein, the sampling tube 3 upper end is provided with fast-assembling structure (not shown in the figure) and is used for dismantling with powder discharge gate 1 or discharging device and is connected, the sampling tube 3 lower extreme also is provided with fast-assembling structure and is used for dismantling the connection with sample jar 5.
In this embodiment, the two valves (valve 2 and valve 4) are steel ball valves with the sampling tube 3 having a diameter matched with each other, wherein the valve 2 is disposed at the upper end of the sampling tube 3, and the valve 4 is disposed at the lower end of the sampling tube 3. In this embodiment, the inner diameter of the sampling tube is 20mm, and at this time, the valve 2 and the valve 4 are stainless steel ball valves with model number DN10, and the sampling tank 5 has a capacity of 500 ml.
In this embodiment, the quick-assembly structure at the upper end of the sampling tube 3 is an internal thread, an external thread, or a quick-assembly joint, and correspondingly, the powder discharge port 1 or the discharge device is correspondingly provided with an internal thread, an external thread, or a quick-assembly joint. Wherein, the quick-operation joint can be KF joint or sanitary-grade joint. As an example, the KF25 quick coupler is selected for the present embodiment.
In this embodiment, the quick-assembly structure of the lower end of the sampling tube 3 is similar to the quick-assembly structure of the upper end, and any one of an internal thread, an external thread or a quick-assembly joint can be selected. The opening of the sampling tank adopts a corresponding structure.
In this embodiment, the sampling tube is a steel tube with an inner diameter of 10-100 mm.
Example two
Based on above sampling device, the utility model discloses in order to use this sampling device to explain nickel base alloy powder carries out powder granularity sample in the screening process, when taking a sample, sampling device sets up in the screening machine discharge gate department, and sampling device's size specification is: the sampling tube selects a stainless steel tube with the diameter of 20mm, the end faces of two ends of the sampling tube are respectively welded with KF25 quick connectors, the valve selects a stainless steel ball valve with the model number of DN10, the capacity of the sampling tank selects 500ml, the opening of the sampling tank is also a KF25 quick connector, and a KF25 quick connector is arranged near the discharge port of the sieving machine.
The using method comprises the following steps:
step 1: before sampling, a sampling device consisting of a stainless steel sampling tube, a stainless steel ball valve, a stainless steel sampling tank and the like is cleaned by ultrasonic waves for 5-10min, then dried in a drying box for 30-60min at 105 ℃, and finally blown by compressed air, so that the sampling device is clean and pollution-free.
Step 2: and (3) cushioning a KF25 sealing ring on a KF25 quick-mounting joint, aligning the KF25 quick-mounting joint on a discharge port of the sieving machine, and clamping by using a clamp. A500 ml sample canister was also mounted under the stainless steel sample tube by quick-connect KF25 and clip-on locking. Keeping 2 steel ball valves in a closed state before sampling.
And step 3: and (4) opening the sieving machine, enabling the powder to flow out of the discharge port, opening the steel ball valve at the upper end of the sampling tube, keeping the steel ball valve at the lower end closed, and temporarily storing the powder in the stainless steel tube.
And 4, step 4: the state of step 3 was maintained for 30s, the upper end ball valve was closed, and then the lower end ball valve was opened, at which time about 300g of the powder was all flowed into the stainless steel sampling tank.
And 5: and closing the lower end ball valve, detaching the stainless steel sampling tank, and sealing the sampling tank by using a KF25 quick-mounting blind plate. And completing the whole sampling operation.
EXAMPLE III
Based on above sampling device, the utility model discloses again in order to use this sampling device to explain nickel base alloy powder to carry out the sample of powder oxygen content sample on bipyramid drying equipment, when taking a sample, sampling device sets up on bipyramid drying equipment, sampling device's specification of dimensions is: the sampling tube chooses for use 20mm stainless steel pipe, and both ends terminal surface is provided with the external screw thread respectively, and the model is DN 10's stainless steel ball valve is chooseed for use to the valve, and sample jar capacity chooses for use 200ml, and the sample jar opening is provided with the internal thread hole, and bipyramid drying equipment's bipyramid awl mouth is provided with the internal thread hole.
The using method comprises the following steps:
step 1: before sampling, a sampling device composed of a stainless steel sampling tube, a steel ball valve, a stainless steel sampling tank and the like is cleaned by ultrasonic waves for 5-10min, then is dried in a drying box for 30-60min at 105 ℃, and finally is blown by compressed air, so that the sampling device is clean and pollution-free.
Step 2: and screwing the upper end of the stainless steel sampling tube and the conical opening of the double-cone drying equipment through threads. A sampling pot having a capacity of 200ml was also screwed on below the stainless steel sampling tube. Keeping 2 steel ball valves in a closed state before sampling.
And step 3: and (4) starting the double-cone drying equipment, finishing powder drying, and adjusting the position of the double cones to enable the cone openings of the double cones to face downwards vertically. At this time, the steel ball valve at the upper end of the sampling tube is opened, the ball valve at the lower end is kept closed, and at this time, powder falls into the stainless steel sampling tube.
And 4, step 4: the state of step 2 was maintained for 20s, the upper end ball valve was closed, and then the lower end ball valve was opened, at which time about 200g of the powder was all flowed into the stainless steel sampling tank.
And 5: and closing the lower end ball valve, unscrewing the stainless steel sampling tank, and sealing the sampling tank. And completing the whole sampling operation.
The above examples are only for illustrating the specific embodiments of the present invention. It should be noted that, for those skilled in the art, the protection scope of the present invention should not be limited by the concept of the present invention.
Claims (7)
1. A metal powder sampling device, comprising: the sampling device comprises a sampling tube, at least two valves arranged on the sampling tube and a sampling tank arranged at the lower end of the sampling tube, wherein a preset interval is arranged between the two valves and used for temporarily storing metal powder;
the sampling tube upper end is provided with the fast-assembling structure and is used for being connected with powder discharge gate or discharging device can dismantle, the sampling tube lower extreme also be provided with the fast-assembling structure be used for with the connection can be dismantled to the sample jar.
2. The metal powder sampling device of claim 1, wherein the two valves are steel ball valves matching the diameter of the sampling tube, wherein one valve is disposed at the upper end of the sampling tube and one valve is disposed at the lower end of the sampling tube.
3. The metal powder sampling device of claim 1, wherein the quick-assembly structure at the upper end of the sampling tube is an internal thread, an external thread or a quick-assembly joint, and the powder discharge hole or the discharge device is correspondingly provided with an internal thread, an external thread or a quick-assembly joint.
4. The metal powder sampling device of claim 3, wherein the quick-fit joint is a KF joint or a sanitary joint.
5. The metal powder sampling device of claim 1, wherein the quick-mounting structure at the lower end of the sampling tube is an internal thread, an external thread or a quick-mounting joint, and the sampling tank opening is correspondingly provided with an internal thread, an external thread or a quick-mounting joint.
6. The metal powder sampling device of claim 5, wherein the quick-fit joint is a KF joint or a sanitary joint.
7. A metal powder sampling device according to claim 1, wherein the sampling tube is a steel tube having an internal diameter of 10 to 100 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922185886.2U CN211504774U (en) | 2019-12-09 | 2019-12-09 | Metal powder sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922185886.2U CN211504774U (en) | 2019-12-09 | 2019-12-09 | Metal powder sampling device |
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| CN211504774U true CN211504774U (en) | 2020-09-15 |
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| CN201922185886.2U Active CN211504774U (en) | 2019-12-09 | 2019-12-09 | Metal powder sampling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112495005A (en) * | 2020-11-26 | 2021-03-16 | 南通大学 | Device capable of oxygenating and separating and collecting sediments and suspended matters |
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2019
- 2019-12-09 CN CN201922185886.2U patent/CN211504774U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112495005A (en) * | 2020-11-26 | 2021-03-16 | 南通大学 | Device capable of oxygenating and separating and collecting sediments and suspended matters |
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