CN114459828A - Self-cleaning telescopic material sampling device - Google Patents
Self-cleaning telescopic material sampling device Download PDFInfo
- Publication number
- CN114459828A CN114459828A CN202011246131.XA CN202011246131A CN114459828A CN 114459828 A CN114459828 A CN 114459828A CN 202011246131 A CN202011246131 A CN 202011246131A CN 114459828 A CN114459828 A CN 114459828A
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- Prior art keywords
- sampling
- knife
- sampling device
- self
- cleaning
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- 238000005070 sampling Methods 0.000 title claims abstract description 99
- 239000000463 material Substances 0.000 title claims abstract description 67
- 238000004140 cleaning Methods 0.000 title claims abstract description 16
- 238000007599 discharging Methods 0.000 claims description 17
- 238000003466 welding Methods 0.000 claims description 12
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000010962 carbon steel Substances 0.000 claims description 2
- 230000006698 induction Effects 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 230000008602 contraction Effects 0.000 claims 1
- 229920001971 elastomer Polymers 0.000 claims 1
- 229920002635 polyurethane Polymers 0.000 claims 1
- 239000004814 polyurethane Substances 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 239000004568 cement Substances 0.000 abstract description 2
- 239000003245 coal Substances 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/16—Rigid blades, e.g. scrapers; Flexible blades, e.g. wipers
- B08B1/165—Scrapers
-
- 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
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
- G01N2001/2092—Cross-cut sampling
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to a self-cleaning telescopic material sampling device which can be used in the industries of coal, cement and the like. The sampling device has the advantages that online sampling is realized by a method of intercepting material flow in the material channel, the sampling device adjusts the extension of the sampling knife electrically, pneumatically or hydraulically, has the function of automatically cleaning impurities on the knife edge, and is suitable for sampling materials with high moisture content and materials containing fibrous impurities. The device adopts electric, pneumatic or hydraulic actuating mechanism, has simple structure, and advantages such as safe and stable high efficiency, do not account for the passageway.
Description
Technical Field
The invention relates to an online material sampling device, in particular to a device for automatically intercepting and sampling material flow.
Background
With the development of science and technology, online material detection and analysis instruments are increasingly applied to industries such as coal, cement and the like, and can analyze the attributes and the quality of materials in each production stage in real time so as to achieve the purpose of quality control. Therefore, each step of sampling, preparing and analyzing is very important. At present, the sampling process is from traditional manual sampling to mechanical automatic sampling, and the efficiency, the accuracy and the timeliness of the sampling process are greatly improved. The existing mechanical sampling is divided into a static mode and a mobile flow mode, wherein the mobile flow sampling mainly comprises a belt middle sampling device and a falling flow sampling device. At present, the most common falling flow sampling device is a spiral type sampling device; the sampling head is inserted into the material channel and samples by driving the spiral reamer by the motor. The sampling mode has good tightness and the sampling quantity can be ensured. But the structure is more complex, and the service life of the internal spiral reamer is short; the large-moisture and fibrous blanking can be adhered to the surfaces of the sampling head and the spiral reamer, the automatic cleaning function is not provided, the maintenance difficulty is high, and scientific and stable sampling cannot be performed. Inside spiral sampling device's sampling head need the permanent material passageway of inserting, it is great to occupy the material passageway inner space, can cause certain influence to the smoothness nature of non-sampling time blanking, and is not fit for the big viscidity material of moisture. The spiral sampling device has certain limitations.
Disclosure of Invention
The invention relates to a telescopic falling flow sampling device with an automatic cleaning function. Aiming at the defects of the traditional spiral sampling mode, the device has simple structure and firm installation. Can scrape sample sword (1) automatically, need not maintain, life is longer, and the operation is more stable. The opening size of the sampling knife (1) can be set according to the granularity of the materials to allow the materials to pass through completely. The non-sampling time does not occupy the internal space of the material channel, so that the blanking can flow without obstacles according to the drift diameter of the original material channel. The invention overcomes the limitation of the traditional spiral sampling mode, reduces the abrasion and is more suitable for materials with large water content.
The technical scheme adopted by the invention is as follows: the utility model provides a telescopic material sampling device of automatically cleaning, characterized by: at the material passageway trompil, welding flange (2) and (9) welding are on material passageway, discharging pipe (7) are connected with welding flange (9) through the bolt, set up pneumatic gate valve (8) in the middle of discharging pipe (7), flange (3) are connected with welding flange (2) through the bolt, flange (3) and urceolus (6) welded fastening, cylinder (4) and urceolus (6) bolt fastening, clear blade (5) and urceolus (6) welded fastening, installed spherical bearing additional between cylinder (4) piston rod and sample sword (1) and connected fixedly through the nut. The sampling knife (1) can be driven in an electric, pneumatic or hydraulic mode, and the driving mode can be selected by combining the actual situation of the application site. When sampling, the pneumatic gate valve (8) at the discharging pipe (7) is opened, the sampling knife (1) extends into the material channel and is inserted into the discharging pipe (7), and the sampling knife (1) and the discharging pipe (7) form an inclined channel. The material falls into the sampling knife (1) and flows into the discharge pipe (7) along the same direction. After material taking is finished, the pneumatic gate valve (8) is closed, and the sampling knife (1) is retracted into the shell (6). The pneumatic gate valve (8) can be replaced by a hydraulic knife gate valve or an electric gate valve. Can prevent the material from falling into the discharge pipe (7) during the non-material taking time. The sampling knife (1) is made of stainless steel, and can be lined with a polyethylene plate to increase the wear resistance. The welding flange (2) and the welding flange (9) are made of carbon steel and can be directly welded at the position of the opening on the outer wall of the material channel; the welding flange (2) and the flange (3) are matched to fix the outer cylinder (6) of the sampling device; the welding flange (9) can fix the discharge pipe (7) and the pneumatic gate valve (8); the outer cylinder (6) is made of stainless steel and plays a role in fixing the driving device and accommodating the sampling knife (1). The cylinder (4) is provided with a magnetic ring induction device which is connected with a PLC control system in the control box (10) to control the sampling cutter (1) to do reciprocating motion in the material channel and the outer cylinder (6), and the sampling frequency, the sampling speed and the sampling time can be set.
The invention has the beneficial effects that:
the invention can open a hole on the outer wall of the material channel and fix the hole through the welding flanges (2) and (9), thereby ensuring good tightness of the material channel while being convenient to install.
During sampling, the sampling cutter (1) is inserted into the material channel until the discharging pipe (7) on the other side, the sampling cutter (1) and the discharging pipe (7) form an inclined channel, so that the material falling into the sampling cutter (1) flows into the discharging pipe (7) along the inclined direction of the sampling cutter (1), and meanwhile, the cutter head of the sampling cutter (1) also plays a role in dredging the discharging pipe (7) when being inserted into the discharging pipe (7).
After the sample was accomplished, when sample sword (1) retracted urceolus (6), clear blade (5) can scrape sample sword (1), and the viscidity is great adsorbs in material and the impurity of sample sword (1) inner wall can be clear away and fall back to the material passageway. Meanwhile, the pneumatic gate valve (8) at the discharging pipe (7) is closed, so that the blanking material in non-sampling time can not flow out of the discharging pipe (7).
The sampling cutter (1) is in a retraction state, and does not occupy the drift diameter of the material channel; the blanking can pass through the material channel without obstacles, so that the sampling accuracy is ensured, and the drift diameter of the material channel is not influenced.
The invention can freely control the sampling frequency and the sampling time of the sampling knife (1) through programming control, thereby improving the representativeness of sampling and the automation level of sampling.
Drawings
FIG. 1 is a schematic structural view of a retractable material sampling device;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic diagram of the telescopic material sampling device during sampling operation;
FIG. 4 is a schematic view of the retractable material sampling device when the sampling is stopped.
Detailed Description
When the material falls in the material channel, the PLC in the control box (10) sends out control signals to the electromagnetic valve at regular time to control the air supply of the air cylinder (4) and the pneumatic gate valve (8). The pneumatic gate valve (8) is opened, the piston rod of the air cylinder (4) is recovered, the sampling knife (1) is driven to extend until the discharging pipe (7) at the other side is inserted, and the material flow is intercepted by the sampling knife (1). Because the structure and the style of the sampling knife (1) and the installation angle can form an inclined channel in the material channel, the material flows into the discharge pipe (7) along the inclined direction of the sampling knife (1), thereby completing the sampling work. After sampling is finished, a PLC in the control box (10) sends out a control signal to control the air cylinder (4) and the pneumatic gate valve (8) to supply air, so that the sampling cutter (1) retracts into the outer cylinder (6), and the pneumatic gate valve (8) is closed; meanwhile, the cleaning blade (5) can scrape the sampling cutter (1), and scraped materials and sundries can fall back into the material channel, so that sampling work is completed.
Claims (6)
1. A self-cleaning telescopic material sampling device is characterized in that: a hole is formed in the material channel, the welding flange (2) is welded on the material channel, and the sampling device is connected with the welding flange (2) through the flange (3); the discharging pipe (7) is connected with a welding flange (9) through a bolt, a pneumatic gate valve (8) is arranged in the middle of the discharging pipe (7), the flange (3) is welded and fixed with an outer barrel (6), an air cylinder (4) is fixed with the outer barrel (6) through a bolt, a cleaning blade (5) is welded and fixed with the outer barrel (6), and a piston rod of the air cylinder (4) is connected and fixed with a sampling cutter (1) through a spherical bearing.
2. The self-cleaning telescoping material sampling device of claim 1, wherein: the cylinder (4) is provided with a magnetic ring induction device which is connected with a PLC control system in the control box (10) and can control the sampling knife (5) to reciprocate in the material channel and the outer cylinder (6); the sampling frequency, sampling speed and sampling time can be set.
3. The self-cleaning telescoping material sampling device of claim 1, wherein: the pneumatic gate valve (8) at the discharging pipe (7) can prevent materials from falling into the discharging pipe (7) in non-material-taking time; can be replaced by a hydraulic knife gate valve or an electric gate valve.
4. The self-cleaning telescoping material sampling device of claim 1, wherein: the sampling knife (1) is made of stainless steel or carbon steel, and can be lined with ultra-high molecular polyethylene, wear-resistant rubber or polyurethane to increase the wear resistance; the sampling knife (1) can be driven to extend into the material channel by an electric, pneumatic or hydraulic driving mode and is finally inserted into the discharge pipe (7); meanwhile, the sampling knife (1) also plays a role in dredging the discharge pipe (7); when the sampling knife (1) retracts into the outer barrel (6), the cleaning blade (5) can scrape the sampling knife (1), and scraped materials and sundries can fall back into the material channel.
5. The self-cleaning telescoping material sampling device of claim 4, wherein: the angle between the sampling knife (1) and the horizontal plane is more than or equal to 55 degrees; the section of the sampling knife (1) can be arc-shaped, square, V-shaped or trapezoidal; the size of the sampling knife (1) can be adjusted according to the granularity of the materials.
6. The self-cleaning telescoping material sampling device of claim 4, wherein: when the sampling knife (1) is in a contraction state, the sampling device does not occupy the space of the material passage, so that materials can pass through without obstacles in the non-material taking time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011246131.XA CN114459828A (en) | 2020-11-10 | 2020-11-10 | Self-cleaning telescopic material sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011246131.XA CN114459828A (en) | 2020-11-10 | 2020-11-10 | Self-cleaning telescopic material sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114459828A true CN114459828A (en) | 2022-05-10 |
Family
ID=81404916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011246131.XA Withdrawn CN114459828A (en) | 2020-11-10 | 2020-11-10 | Self-cleaning telescopic material sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114459828A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115739681A (en) * | 2022-11-15 | 2023-03-07 | 西安海联石化科技有限公司 | Titanium and titanium alloy scrap sorting, collecting and sampling device and method |
-
2020
- 2020-11-10 CN CN202011246131.XA patent/CN114459828A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115739681A (en) * | 2022-11-15 | 2023-03-07 | 西安海联石化科技有限公司 | Titanium and titanium alloy scrap sorting, collecting and sampling device and method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220510 |