CN112781917A - Sampler suitable for large-volume powder storage bin - Google Patents
Sampler suitable for large-volume powder storage bin Download PDFInfo
- Publication number
- CN112781917A CN112781917A CN202011599170.8A CN202011599170A CN112781917A CN 112781917 A CN112781917 A CN 112781917A CN 202011599170 A CN202011599170 A CN 202011599170A CN 112781917 A CN112781917 A CN 112781917A
- Authority
- CN
- China
- Prior art keywords
- sampling
- storage bin
- push
- sampling tube
- pull rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003860 storage Methods 0.000 title claims abstract description 86
- 239000000843 powder Substances 0.000 title claims abstract description 52
- 238000005070 sampling Methods 0.000 claims abstract description 188
- 238000007599 discharging Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract 1
- 239000010881 fly ash Substances 0.000 description 16
- 239000000463 material Substances 0.000 description 13
- 230000006872 improvement Effects 0.000 description 10
- 238000004140 cleaning Methods 0.000 description 9
- 238000004056 waste incineration Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- -1 polytetrafluoroethylene Polymers 0.000 description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000002861 polymer material Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000002738 chelating agent Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 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
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
-
- 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
- G01N1/16—Devices for withdrawing samples in the liquid or fluent state with provision for intake at several levels
Landscapes
- Life Sciences & Earth Sciences (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)
- Hydrology & Water Resources (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention provides a sampler suitable for a large-volume powder storage bin, which relates to the field of storage bin sampling equipment and comprises: the sampling device comprises a sampling tube, a sampling scraper and a push-pull rod; the sampling tube is provided with a feed inlet and a discharge outlet along the direction of a bus, the centers of the feed inlet and the discharge outlet are on the same bus, and at least one end of the sampling tube penetrates through the side wall of the storage bin, so that the feed inlet and the discharge outlet are respectively positioned inside and outside the storage bin; a sampling scraper is arranged in the sampling pipe, one end of the push-pull rod is connected with the sampling scraper, and the other end of the push-pull rod extends out of the storage bin from the sampling pipe; the sampling tube outsides at the two ends of the feeding port are respectively sleeved with a bearing, and the bearings are used for rotatably connecting the sampling tube in the storage bin. The invention has the beneficial effects that: the problem of the current uneven and the representativeness poor of sampling to big volume powder storage bin single position is solved, the fluctuation condition of the composition and the performance of powder in the storage bin is accurately grasped, effective reference and guidance are provided for the selection of follow-up production technology parameter.
Description
Technical Field
The invention relates to the field of storage sampling equipment, in particular to a sampler suitable for a large-volume powder storage.
Background
The waste incineration fly ash, lime, cement and the like belong to bulk powder, and the powder is easy to absorb moisture, agglomerate and deteriorate, so the powder needs to be stored in a large-volume storage bin, the powder is prevented from being directly exposed in a low-temperature and humid environment, and an electric tracing device is additionally arranged for heat preservation if necessary; the powder material is often required to be sampled, analyzed and detected before use, so that subsequent production process parameters can be specifically adjusted, and the whole production process is promoted to be smooth.
For large-volume powder storage bins, multi-point sampling is one of the most common and most effective methods for ensuring the representativeness of sampled products, and has important significance for the selection of subsequent production process parameters. For example, fly ash from waste incineration is generally buried after being chelated and stabilized by chemical agents, and the volume of a fly ash storage bin is generally large, and the diameter of the fly ash storage bin reaches 5-7 meters and is as high as about 25 meters. For the large-diameter garbage incineration fly ash storage bin, the existing plug-in sampling equipment cannot finish sampling at a deeper position in the longitudinal direction of the storage bin, and meanwhile, if the existing plug-in sampling equipment needs to perform repeated operations for sampling at multiple positions in the transverse direction of the storage bin, the existing plug-in sampling equipment is complex, the fly ash at different positions in the storage bin is difficult to comprehensively sample and analyze, the problem of unreasonable proportion of a fly ash chelating agent is easily caused, and the two goals of ensuring the standard reaching of the leaching toxicity of heavy metals of the fly ash solidified products and the most economical and reasonable proportion of medicaments are difficult to simultaneously achieve.
Therefore, special design needs to be performed on the sampling device and the operation method so as to reliably sample and analyze powder materials such as waste incineration fly ash in the storage bin, accurately grasp the production fluctuation condition in time and provide reference and guidance for selection of the proportion of the fly ash chelating agent.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a sampler suitable for a large-volume powder storage bin, and solves the problems of nonuniform sampling, complex sampling process and unreliable sampling data of the large-volume powder storage bin in the prior art.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a sampler suitable for use in a large volume powder storage bin, comprising: the sampling device comprises a sampling tube, a sampling scraper and a push-pull rod;
the sampling tube can rotatably penetrate through at least one side wall of the storage bin, a feeding hole and a discharging hole are formed in the sampling tube along the bus direction, the feeding hole is arranged in the storage bin, and the discharging hole is arranged outside the storage bin;
the sampling scraper is arranged in the sampling pipe, and the push-pull rod is connected with the sampling scraper; the push-pull rod drives the sampling scraper to push and pull the powder entering from the feeding hole to the discharging hole.
As a further improvement of the invention, the sampling scraper is a circular plate, and the diameter of the sampling scraper is smaller than the inner diameter of the sampling pipe; the push-pull rod is perpendicular to the sampling scraper and is arranged in the center of the sampling scraper.
As a further improvement of the invention, the edge part of the sampling scraper extends to one side of the push-pull rod to form a baffle, and the central angle of the baffle corresponding to the sampling scraper is larger than that of the feed port corresponding to the sampling pipe.
As a further improvement of the invention, the sampling tube is provided with a flange cover close to the edge of the discharge hole, the outer side surface of the flange cover is connected with a sleeve, and the push-pull rod extends out of the sampling tube through the sleeve.
As a further improvement of the invention, the length of the push-pull rod is greater than the sum of the lengths of the sampling tube and the sleeve, and a scale for positioning the depth position of the sampling scraper is arranged on the push-pull rod.
As a further improvement of the invention, a handle is arranged outside the flange cover.
As a further improvement of the invention, bearings are sleeved on the outer sides of the sampling tubes at two ends of the feeding hole, and the outer sides of the bearings are fixedly connected with the storage bin, so that the sampling tubes are rotatably connected with the storage bin
As a further improvement of the invention, the push-pull rod extending out of the storage bin is provided with a baffle pointer, and the baffle pointer is positioned in a plane defined by the center line of the baffle and the center line of the push-pull rod.
As a further improvement of the invention, the push-pull rod can be replaced by a hinged chain or a sectional connecting rod, both ends of the sampling tube penetrate out of the storage bin, and both surfaces of the sampling scraper are connected with the hinged chain or the sectional connecting rod and penetrate out of the sampling tube.
As a further improvement of the invention, the maximum length of the baffle plate along the midline direction of the sampling tube is less than or equal to the length of the discharge port along the midline direction of the sampling tube.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the sampler is fixed in the storage bin, the feed inlet and the discharge outlet are respectively positioned inside and outside the storage bin, when the feed inlet and the discharge outlet are both upward, powder in the storage bin enters the sampling tube, then the rotary bearing is used for 180 degrees, the feed inlet and the discharge outlet are downward, and then the push-pull rod is pulled to discharge the powder collected in the sampler from the discharge outlet, so that samples at different positions of the same cross section of the storage bin are obtained.
According to the invention, the baffle is arranged at the edge of the sampling scraper, so that powder material is prevented from overflowing in the direction opposite to the pulling direction when the sampling scraper is pulled, and the sampling scraper is beneficial to taking out the sample powder material.
The invention is also provided with a cleaning access door, which can clean the residual powder in the sampling tube before sampling, ensure the accuracy of the collected sample and replace and maintain the sampling scraper plate.
The invention can be arranged on the cross sections of the storage bin at different heights according to the sampling requirement and is arranged in a scattered manner on the same cross section, thereby sampling different positions in the storage bin in the transverse direction and the longitudinal direction, uniformly sampling and more reliably sampling data.
Drawings
FIG. 1 is a front view of a sampler suitable for use in a large volume powder storage silo according to an embodiment of the present invention;
FIG. 2 is a top view of a sampler suitable for use in a large volume powder storage silo according to an embodiment of the present invention;
FIG. 3 is a schematic view showing the arrangement of a sampler in a fly ash storage bin of a waste incineration power plant according to embodiment 1 of the present invention;
FIG. 4 is a top view of a fly ash silo sampler of a waste incineration power plant according to example 1 of the present invention;
FIG. 5 is a schematic view of the arrangement of the sampler in the fly ash storage bin of a waste incineration power plant according to embodiment 2 of the present invention;
FIG. 6 is a top view of a fly ash silo sampler of a waste incineration power plant according to example 2 of the present invention;
fig. 7 is a schematic structural view of the push-pull rod replaced by an articulated chain or a segmented connecting rod according to an embodiment of the invention.
Description of reference numerals:
1. a sampling tube; 2. a sampling scraper plate; 3. a push-pull rod; 4. a baffle plate; 5. a feed inlet; 6. a discharge port; 7. a bearing; 8. cleaning an access door; 9. a flange cover; 10. a sleeve; 11. a handle; 12. rotating the handle; 13. a baffle pointer; 14. a first sampler; 15. a second sampler; 16. a third sampler; 17. A fourth sampler; 18. a central upright post.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The invention is described in further detail below with reference to the attached drawing figures:
as shown in fig. 1 and 2, the invention provides a sampler suitable for a large-volume powder storage bin, comprising: a sampling tube 1, a sampling scraper 2 and a push-pull rod 3;
the sampling tube 1 is provided with a feeding hole 5 and a discharging hole 6 along the direction of a bus, wherein the feeding hole 5 and the discharging hole 6 are positioned at the same side of the sampling tube 1, preferably, the centers of the feeding hole 5 and the discharging hole 6 are positioned on the same bus, one end or two ends of the sampling tube 1 penetrate through the side wall of the storage bin, wherein the end of the sampling tube 1 can be horizontally or obliquely upwards penetrated through the inner wall of the storage bin or the end of the discharging hole 6, preferably, the sampling tube can be horizontally penetrated through the side wall of the storage bin, a flange cover 9 is arranged at one end port, a cleaning access door 8 is arranged when the other end penetrates out of; a circular sampling scraper 2 is arranged in the sampling tube 1, the center of the sampling scraper 2 is connected with one end of a push-pull rod 3, the other end of the push-pull rod 3 extends out of the sampling tube 1, the tail end of the push-pull rod 3 is provided with a rotating handle 12, and the push-pull rod 3 is driven by the rotating handle 12 to rotate the sampling scraper 2 and the baffle 4; bearing 7 is all cup jointed in the sampling tube 1 outside at 5 both ends of feed inlet, and bearing 7 inner wall connection sampler, outer wall connection storage storehouse through at 9 outside installation handles 11 of blind flange, and manual rotation sampling tube 1 is rotatory around the central line.
Wherein,
the outer diameter of the sampling tube 1 is preferably 80-200 mm, the inner diameter is preferably 70-180 mm, the sampling tube 1 can be a metal tube, a polymer material tube and a metal-nonmetal composite material tube, the metal tube comprises but is not limited to a steel tube, an aluminum alloy tube, a titanium alloy tube and the like, the polymer material comprises but is not limited to polytetrafluoroethylene and heat-resistant glass reinforced plastic, the metal-nonmetal composite material comprises but is not limited to plastic steel and metal coated with a polymer layer on the inner and outer sides, the central angle of the feeding hole 5 corresponding to the sampling tube is 60-180 degrees, and the bending strength of the sampling tube 1 and the sampling tube 1 can be ensured to be smoothly filled; when the length of the feeding hole 5 is more than 2m, the central angle of the feeding hole 5 corresponding to the sampling tube 1 is not more than 150 degrees, so that the sampling scraper 2 is not easy to slip in the inner cavity of the sampling tube 1; the central angle of the discharge port 6 corresponding to the material taking pipe is preferably 30-120 degrees, the length along the axial direction of the sampling pipe is preferably 1-10 percent of the length of the feed port 5, and further, a sealing cover is arranged on the discharge port 6 and is sealed in a conventional state, so that the dust-proof and heat-preservation effects on the powder in the storage bin are achieved, and the moisture absorption and agglomeration of the powder can be prevented.
The edge part of the sampling scraper 2 extends to one side of the push-pull rod 3 to form a baffle 4, the central angle of the baffle 4 corresponding to the sampling scraper 2 is larger than the central angle of the feed port 5 corresponding to the sampling tube 1, and the maximum length of the baffle 4 along the central line direction of the sampling tube 1 is smaller than or equal to the length of the discharge port 6 along the central line direction of the sampling tube 1; furthermore, the thickness of the sampling scraper blade 2 is 3-15 mm, the diameter of the sampling scraper blade 2 is 1-5 mm smaller than the inner diameter of the sampling tube 1, so that the friction of the sampling scraper blade 2 sliding along the inner wall of the sampling tube 1 is reduced, and the sample entering the inner cavity of the sampling tube 1 is prevented from leaking from the gap;
the length of the sampling tube 1 penetrating out of the storage bin is not less than 1m, the sampling tube 1 is attached to the edge of the discharge port 6, a flange cover 9 is mounted on the edge of the flange cover 9, a sleeve 10 is further connected to the outer side face of the flange cover 9, the length of the push-pull rod 3 is greater than the sum of the lengths of the sampling tube 1 and the sleeve 10, and the push-pull rod 3 extends out of the sampling tube 1 through the sleeve 10.
The push-pull rod 3 extending out of the storage bin is provided with a baffle pointer 13, and the baffle pointer 13 is positioned in a plane defined by the center line of the baffle 4 and the center line of the push-pull rod 3 and used for determining the orientation of the baffle 4 at any time.
When obstacles such as a wall body, a storage tank, a steel structure, a guardrail and the like exist in the range of 2 meters around the storage bin and the use of a longer rigid push-pull rod 3 is inconvenient, the push-pull rod 3 can be replaced by a hinged chain or a segmented connecting rod, as shown in fig. 7, both ends of the sampling tube 1 penetrate out of the storage bin, both surfaces of the sampling scraper 2 are connected with the hinged chain or the segmented connecting rod and penetrate out of the sampling tube 1, and both ends of the sampler 1 are provided with handles 11; further, in order to improve the stability and reliability of the push-pull rod 3, especially the chain type hinged push-pull rod 3, in the movement process, a sleeve 10 is arranged at the central circular hole of the flange cover 9, the tail end of the sleeve 10 is funnel-shaped, the inner diameter of the sleeve 10 is larger than the outer diameter of the push-pull rod 3, the material can be selected from boron nitride, graphite and other materials with self-lubricating effect, and can also be selected from polytetrafluoroethylene, high-density polyethylene plastic pressing parts and other high polymer materials with low surface roughness and low friction coefficient;
the cleaning access door 8 is used for rapidly overhauling and replacing the sampling scraper 2, and the inner cavity of the sampling tube 1 can be cleaned more thoroughly. When the length of the sampling tube 1 is long and the central angle of the feeding port 5 corresponding to the sampling tube 1 is larger than 150 degrees, the reinforcing ribs are welded outside the sampling tube 1, the integral bending strength of the sampling tube 1 is improved, and the requirement of a large-diameter storage bin is met.
Example 1:
the fly ash storage bin of a certain waste incineration power plant has the inner diameter of 5m and the net height of 22 m. The bearings 7 at the two ends of the sampler are arranged on the wall of the ash bin, a first sampler 14, a second sampler 15, a third sampler 16 and a fourth sampler 17 are sequentially arranged in the storage from top to bottom, the vertical distance between the second sampler 15 and the third sampler 16 is set to be 5m, the arrangement is shown in figures 3 and 4, wherein the parameters of each sampler are as follows:
(1) the outer diameter of the sampling tube 1 is 100mm, the inner diameter is 90mm, a seamless steel tube is adopted, the total length is 9m, and two ends of the sampling tube 1 protrude out of the outer surface of the storage bin by 1m respectively.
(2) The central angle of the feeding port 5 corresponding to the sampling tube 1 is 120 degrees, the length is 4.6m, and the distance between the two sides of the feeding port 5 and the inner wall of the storage bin is 0.2m respectively; the length of the discharge port 6 is 0.4 m. The discharge port 6 has a central angle of 90 degrees corresponding to the sampling tube 1.
(3) A cleaning access door 8 is arranged at one end of the sampling tube 1, a flange plate with a hole in the center is arranged at the other end of the sampling tube, a sleeve is installed at the center hole of the flange plate, and the inner diameter of the sleeve 10 is 15mm and is made of polytetrafluoroethylene.
(4) The push-pull rod 3 is a solid metal rod with the length of 10m and the diameter of 10 mm; the farthest distance from the center of the baffle pointer 13 on the push-pull rod 3 to the end of the sampling tube 1 is 9 m.
(5) The thickness of sampling scraper 2 is 8mm, and the radius is 85mm, and baffle 4 radius is 85mm too, and the length of baffle 4 along sampling tube 1 central line direction is 0.4 m. Sampling scraper 2 and baffle 4 all adopt the polytetrafluoroethylene material, and the thickness of baffle 4 is 8 mm.
Example 2:
the fly ash storage bin of a certain waste incineration power plant has the inner diameter of 4m and the net height of 18 m. The end bearing 7 of the sampler is installed on the inner wall of the storage bin and the central column 18 of the storage bin respectively, the first sampler 14, the second sampler 15, the third sampler 16 and the fourth sampler 17 are installed at the same elevation, and the four samplers are arranged at 90 degrees each other, a set of radial samplers and four samplers which are 90 degrees each other are arranged every 3m along the height direction of the storage bin, as shown in fig. 5 and 6, wherein the parameters of the samplers are:
(1) sampling tube 1 external diameter 80mm, internal diameter 76mm, sampling tube 1 adopts seamless steel pipe, total length 3.5m, and sampling tube 1 discharge gate 6 end is outstanding storage storehouse surface 1 m.
(2) The feed port 5 corresponds to the central angle of the sampling tube 1 and is 100 degrees, the length is 3.8m, and the distance between the two ends and the inner wall of the storage bin and the outer surface of the central upright post 18 is 0.1 m; the length of the discharge port 6 is 0.2 m. The discharge port 6 has a central angle of 120 ° with respect to the sampling tube 1.
(3) One end of the sampling tube 1 is provided with an openable cleaning access hole and a lock catch type cover plate, the other end of the sampling tube is provided with a discharge hole 6 and a flange cover 9 with a hole in the center, a sleeve is arranged at the center hole of the flange, and the inner diameter of the sleeve 10 is 10mm and is made of polytetrafluoroethylene.
(4) The push-pull rod 3 is a solid metal rod with the length of 4 meters and the diameter of 6 mm. The farthest distance from the center of the baffle pointer 13 on the push-pull rod 3 to the end of the sampling tube 1 is 3.2 m.
(5) The thickness of sampling scraper 2 is 5mm, and the radius is 75mm, and baffle 4 radius is 75mm also, and the length of baffle 4 along sampling tube 1 central line direction is 0.15 m. Sampling scraper 2 and baffle 4 all adopt the polytetrafluoroethylene material, and the thickness of baffle 4 is 5 mm.
The specific use process of the sampler:
And 3, manually operating a handle 11 on the flange cover 9 to rotate the sampling tube 1 for 180 degrees again, holding a rotating handle 12 at the outer end of the push-pull rod 3 to ensure that the push-pull rod 3 does not rotate along with the sampling tube 1, ensuring that the discharge hole 6 is downward, judging that the feed hole 5 in the storage bin is also downward, and filling powder into the inner cavity of the sampling tube 1 at the moment.
And 4, receiving the material bag below the discharge hole 6, holding the rotating handle 12, pulling the push-pull rod 3 outwards, enabling the baffle 4 to help the powder to be retracted inwards, avoiding the situation that the powder is pressed by the sampling scraper 2 to extrude the powder at the lower layer to fall out of the material taking pipe, and pushing the powder in the sampling pipe 1 to the discharge hole 6 outside the storage bin by the sampling scraper 2 and the baffle 4 in the pulling process to enter the material bag.
And 5, when the baffle 4 is in contact with the flange cover 9, rotating the push-pull rod 3 by 180 degrees through a rotating handle 12 at the tail end of the push-pull rod 3, judging the position of the baffle 4 according to a baffle pointer 13 in the rotating process, enabling the baffle 4 to face upwards, further enabling the discharge hole 6 not to be blocked by the baffle 4, and enabling the residual powder to overflow from the discharge hole 6.
And 6, after sampling is finished, opening the cleaning access door 8, holding the rotating handle 12, and pushing one end of the cleaning access door 8 through the push-pull rod 3 to discharge the residual powder. Depending on its source and need, the powder may be used as a sample or may be otherwise processed. And closing the cleaning access door 8, and then, returning the feed inlet 5, the discharge outlet 6 and the tail end baffle 4 of the sampling scraper 2 of the baffle 4 to the position of the quasi-working state in the sampling tube 1 to wait for next sampling.
And 7, sampling other samplers in sequence, and synthesizing powder samples at different positions in the storage bin to obtain accurate powder data.
The invention has the advantages that:
(1) fix the sampler in the storage bin, make feed inlet and discharge gate be located the storage bin inside and outside respectively simultaneously, when feed inlet and discharge gate all up, powder gets into the sampling tube in the storage bin, and rethread swivel bearing 180 degrees makes feed inlet and discharge gate down, and then through the pulling push-and-pull rod, makes the powder of gathering in the sampler flow from the discharge gate to obtain the accurate comprehensive sample of horizontal different positions department in the storage bin, sampler simple structure, convenient operation.
(2) The baffle is arranged at the edge of the sampling scraper, so that powder overflows in the direction opposite to the pulling direction when the sampling scraper is pulled, and the sample powder is taken out conveniently.
(3) Still be equipped with the clearance access door, can clear up the remaining powder in the sampling tube before the sample, guarantee the accuracy of gathering the sample, can change and maintain the sample scraper blade simultaneously.
(4) The sampler can run through the type at the vertical not co-altitude position in storage storehouse according to the sample needs and arrange to and be central radiation shape at same height and arrange, can take a sample to the not co-altitude in storage storehouse and the co-altitude different positions, be applicable to bulky powder storage storehouse and realize the multiple spot sample, easy and simple to handle, the sample is even, and the sample data is more reliable.
(5) The sampling tube body can rotate 360 degrees, so that the phenomenon of bridging and material blocking caused by long-time accumulation of powder in the storage bin at the top of the sampler can be avoided, and the normal discharge of the storage bin is not influenced.
(6) Before the pulling push-pull rod takes a sample, rotate the sampling tube body earlier, adjust the discharge gate to vertical decurrent position, can prevent at the in-process of sampling scraper blade to discharge gate propelling movement powder, the powder in the storage storehouse is continuously gushed into the lumen at sampling scraper blade rear, keeps the cleanness of sampling tube cavity to effectively avoid the powder to store up in the pipe, lead to the caking to block up and the problem of corruption.
The above is only a preferred embodiment of the present invention, and the present invention is not limited thereto, and various modifications and changes may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A sampler suitable for a large volume powder storage bin, comprising: the sampling device comprises a sampling tube, a sampling scraper and a push-pull rod;
the sampling tube can rotatably penetrate through at least one side wall of the storage bin, a feeding hole and a discharging hole are formed in the sampling tube along the bus direction, the feeding hole is arranged in the storage bin, and the discharging hole is arranged outside the storage bin;
the sampling scraper is arranged in the sampling pipe, and the push-pull rod is connected with the sampling scraper; the push-pull rod drives the sampling scraper to push and pull the powder entering from the feeding hole to the discharging hole.
2. A sampler according to claim 1, wherein: the sampling scraper is a circular plate, and the diameter of the sampling scraper is smaller than the inner diameter of the sampling pipe; the push-pull rod is perpendicular to the sampling scraper and is arranged in the center of the sampling scraper.
3. A sampler according to claim 2, wherein: the edge part of the sampling scraper extends to one side of the push-pull rod to form a baffle, and the central angle of the baffle corresponding to the sampling scraper is larger than that of the feed port corresponding to the sampling tube.
4. A sampler according to claim 1, wherein: the sampling tube is provided with a flange cover close to the edge of the discharge port, the outer side surface of the flange cover is connected with a sleeve, and the push-pull rod extends out of the sampling tube through the sleeve.
5. A sampler according to claim 4, wherein: the length of the push-pull rod is greater than the sum of the lengths of the sampling tube and the sleeve, and a scale for positioning the depth position of the sampling scraper is arranged on the push-pull rod.
6. A sampler according to claim 4, wherein: and a handle is arranged on the outer side of the flange cover.
7. A sampler according to claim 1, wherein: the bearing is all cup jointed in the sampling tube outside at feed inlet both ends, the bearing outside makes with storage storehouse fixed connection the sampling tube rotates with storage storehouse to be connected.
8. A sampler according to claim 1, wherein: and a baffle pointer is arranged on the push-pull rod extending out of the storage bin and is positioned in a plane defined by the central line of the baffle and the central line of the push-pull rod.
9. A sampler according to claim 1, wherein: the push-pull rod can be replaced by an articulated chain or a sectional connecting rod, both ends of the sampling tube penetrate out of the storage bin, and both sides of the sampling scraper are connected with the articulated chain or the sectional connecting rod and penetrate out of the sampling tube.
10. A sampler according to claim 1, wherein: the maximum length of the baffle along the central line direction of the sampling tube is less than or equal to the length of the discharge port along the central line direction of the sampling tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011599170.8A CN112781917A (en) | 2020-12-29 | 2020-12-29 | Sampler suitable for large-volume powder storage bin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011599170.8A CN112781917A (en) | 2020-12-29 | 2020-12-29 | Sampler suitable for large-volume powder storage bin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112781917A true CN112781917A (en) | 2021-05-11 |
Family
ID=75751537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011599170.8A Pending CN112781917A (en) | 2020-12-29 | 2020-12-29 | Sampler suitable for large-volume powder storage bin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112781917A (en) |
-
2020
- 2020-12-29 CN CN202011599170.8A patent/CN112781917A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214277461U (en) | Sampler suitable for large-volume powder storage bin | |
| CN112781917A (en) | Sampler suitable for large-volume powder storage bin | |
| CN116818405A (en) | Soil sample collection equipment | |
| CN214200693U (en) | Dual-purpose food detection sampling equipment of solid-liquid | |
| CN210487323U (en) | Soil sampling device for soil detection | |
| CN212807685U (en) | Geotechnical investigation sampling device that architectural design used | |
| CN208149958U (en) | A kind of soil sample storage box for geotechnical investigation | |
| JPS61178639A (en) | Sample sampler | |
| CN205404188U (en) | Fixed point sampler | |
| CN221010525U (en) | A adopt device for soil heavy metal detects | |
| CN216410772U (en) | Water body layered sampling device for environmental monitoring | |
| CN221302849U (en) | Drip-proof sampler | |
| CN218445467U (en) | Water quality detection analyzer | |
| CN210256862U (en) | Material injecting equipment for processing epoxy resin castable | |
| CN220268818U (en) | Telescopic structure for pipeline detection | |
| CN219064929U (en) | Cement sampler for sampling bulk cement powder | |
| CN221189881U (en) | Sampling heat preservation incubator | |
| CN219104420U (en) | Multi-point automatic sampling device | |
| CN220772630U (en) | Food detection sampling device | |
| CN217605396U (en) | Device with to flowing cereal sample function | |
| CN219714901U (en) | Fodder flow tube sampler | |
| CN216469514U (en) | Organic chemical raw material barrel convenient for taking liquid | |
| CN216050881U (en) | Surface water sampling system | |
| CN217586476U (en) | A device for likepowder raw materials sample | |
| CN216050805U (en) | Coal sampling device based on thing networking |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |