CN219714842U - Transformation device for solid powder sampling system - Google Patents
Transformation device for solid powder sampling system Download PDFInfo
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- CN219714842U CN219714842U CN202320369034.2U CN202320369034U CN219714842U CN 219714842 U CN219714842 U CN 219714842U CN 202320369034 U CN202320369034 U CN 202320369034U CN 219714842 U CN219714842 U CN 219714842U
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- sampling
- powder
- tube
- electric switch
- solid powder
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- 238000005070 sampling Methods 0.000 title claims abstract description 190
- 239000000843 powder Substances 0.000 title claims abstract description 93
- 239000007787 solid Substances 0.000 title claims abstract description 40
- 230000009466 transformation Effects 0.000 title claims abstract description 7
- 230000000903 blocking effect Effects 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000009420 retrofitting Methods 0.000 claims 3
- 238000000034 method Methods 0.000 abstract description 7
- 238000005381 potential energy Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
- 238000006116 polymerization reaction Methods 0.000 description 9
- 150000001336 alkenes Chemical class 0.000 description 5
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a transformation device for a solid powder sampling system, which comprises a powder sampling tank and a sampling mechanism. The sampling mechanism comprises a sampling tube, a material blocking assembly, a sampling bag, a first electric switch valve and at least one second electric switch valve, a sampling port is formed in the bottom of the powder sampling tank, the sampling tube is vertically arranged, the first end of the sampling tube is connected with the sampling port, and the second end of the sampling tube is connected with the sampling bag. The second electric switch valves are arranged on the sampling tube at intervals, and the first electric switch valve is arranged on the sampling tube. The material blocking component is arranged on the sampling tube and is positioned between the first electric switch valve and the sampling bag. The process pipeline is vertically connected to the original sampling port, so that the sampling port of the original solid powder system is adjusted to the ground from the bottom of the powder sampling tank, potential energy generated by falling of powder is eliminated by adopting the material blocking component, the manual sampling efficiency is improved, the safety of sampling is ensured, the structure is simple, the operability is strong, and the safety and the reliability are realized.
Description
Technical Field
The utility model relates to the technical field of olefin polymerization, in particular to a transformation device for a solid powder sampling system.
Background
In an olefin polymerization device, a polymerization reactor is provided with a solid powder sampling system, and in the driving and running processes, the polymerization reactor is also used for monitoring various important indexes of a polymerization product in time through manual sampling detection besides on-line analysis by an analysis instrument. In the olefin polymerization device, the sampling ports of the powder sampling system are all arranged beside the reactor, and the setting height is generally 6-12 m. The polymerization device has higher sampling frequency during driving or process product adjustment, and the sampling personnel can spend more time going upstairs and downstairs and has lower efficiency. In addition, the potential safety hazard of slipping can exist when going up and down stairs in rainy and snowy days.
Disclosure of Invention
First, the technical problem to be solved
In view of the above-mentioned drawbacks and deficiencies of the prior art, the present utility model provides a retrofit device for a solid powder sampling system, which solves the technical problems of low sampling efficiency and low safety of sampling operation.
(II) technical scheme
In order to achieve the above object, the retrofit device for a solid powder sampling system of the present utility model comprises: the powder sampling device comprises a powder sampling tank and a sampling mechanism, wherein the powder sampling tank is connected with a plurality of powder feeding pipes;
the sampling mechanism comprises a sampling tube, a material blocking assembly, a sampling bag, a first electric switch valve and at least one second electric switch valve; the bottom of the powder sampling tank is provided with a sampling port, the sampling pipe is vertically arranged, the first end of the sampling pipe is connected with the sampling port, and the second end of the sampling pipe is connected with the sampling bag; the plurality of second electric switch valves are arranged on the sampling tube at intervals, the first electric switch valve is arranged on the sampling tube, and the first electric switch valve is arranged below the second electric switch valve close to the second end of the sampling tube; the material blocking assembly is arranged on the sampling tube and is positioned between the first electric switch valve and the sampling bag.
Optionally, the material blocking assembly comprises a connecting piece and a material blocking plate;
the connecting piece is arranged on the sampling tube, and a circular through hole is formed in the connecting piece along the vertical direction;
the connecting piece is horizontally provided with a bar-shaped groove, the circular through hole penetrates through the side wall of the bar-shaped groove, and the striker plate is in sliding connection with the bar-shaped groove.
Optionally, the diameter of the circular through hole is the same as the inner diameter of the sampling tube, and the width of the strip-shaped groove is not smaller than the diameter of the circular through hole.
Optionally, the powder feeding pipe is connected with a gas pipe.
Optionally, the sampling mechanism includes a second electrically operated switch valve, and the second electrically operated switch valve is disposed between the sampling port and the first end of the sampling tube.
Optionally, the distance between the first electric switch valve and the second electric switch valve is 1000 mm-1500 mm.
Optionally, the inner diameter of the sampling tube is 60 mm-100 mm.
Optionally, the sampling tube is a stainless steel tube, a strip-shaped hole is axially formed in the sampling tube, and a transparent plate is covered on the strip-shaped hole.
Optionally, a vibrator is arranged on the sampling tube.
(III) beneficial effects
The solid powder freely descends to the material blocking component from the upper part of the sampling pipe in the sampling pipeline, potential energy generated by powder descending is effectively eliminated, then a sampling person opens the material blocking component to load the solid powder into the sampling bag, the sampling person is prevented from being damaged by direct impact of the solid powder, the sampling bag is prevented from being damaged, and the safety of operation is improved.
The process pipeline is vertically connected to the original sampling port to convey the powder with higher horizontal height to the low horizontal position, so that the sampling port of the original solid powder system is adjusted to the ground from the bottom of the powder sampling tank, potential energy generated by falling of the powder is eliminated by adopting the material blocking component, the manual sampling efficiency is improved, the sampling safety is ensured, the structure is simple, the operability is strong, and the safety and the reliability are high.
Drawings
FIG. 1 is a piping connection diagram of a retrofit device for a solid powder sampling system of the present utility model;
FIG. 2 is a schematic view of a material blocking assembly of a retrofit device for a solid powder sampling system of the present utility model;
FIG. 3 is a schematic structural view of a sampling tube of a retrofit device for a solid powder sampling system of the present utility model.
[ reference numerals description ]
1: a powder sampling tank; 10: a powder feed pipe;
2: a sampling tube; 21: a bar-shaped hole;
3: a material blocking component; 31: a connecting piece; 32: a striker plate; 33: a circular through hole;
4: a sampling bag;
5: a first electric switching valve;
6: a second electric switching valve;
7: and a gas pipe.
Detailed Description
The utility model will be better explained for understanding by referring to the following detailed description of the embodiments in conjunction with the accompanying drawings. Wherein references herein to "upper", "lower", "etc. are made with reference to the orientation of fig. 1.
While exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.
As shown in fig. 1, the utility model provides a transformation device for a solid powder sampling system, which is applied to olefin polymerization equipment, can effectively improve the original sampling equipment and simplifies the sampling operation flow. Specifically, a transformation device for a solid powder sampling system comprises a powder sampling tank 1 and a sampling mechanism, wherein a plurality of powder feeding pipes 10 are connected to the powder sampling tank 1 and are used for conveying powder generated by olefin polymerization reaction into the powder sampling tank 1. The sampling mechanism comprises a sampling tube 2, a material blocking component 3, a sampling bag 4, a first electric switch valve 5 and at least one second electric switch valve 6, wherein the first electric switch valve 5 and the second electric switch valve 6 are preferably electric butterfly valves. The bottom of the powder sampling tank 1 is arranged into a cone shape, and a sampling port is arranged at the bottom of the powder sampling tank 1. The sampling tube 2 is vertically arranged, the first end of the sampling tube 2 is connected with a sampling port, the second end of the sampling tube 2 is connected with a sampling bag 4 on a placing face to face, powder in the powder sampling tank 1 is directly conveyed to the bottom surface, and sampling operation can be completed by receiving the powder on the bottom surface. The vertically arranged sampling tube 2 reduces the use amount of the tube, and can also avoid powder remaining on the tube wall and mixed into the powder for the next sampling in the sampling process, thereby influencing the next detection result. The second electric switch valves 6 are arranged on the sampling tube 2 at intervals, the first electric switch valve 5 is arranged on the sampling tube 2, and the first electric switch valve 5 is positioned below the second electric switch valve 6 close to the second end of the sampling tube 2. The first electric switch valve 5 and all second electric switch valves 6 are in the closed state before the sample, the second electric switch valve 6 closest to the first end of the sampling tube 2 is opened during the sample, powder enters the sampling tube 2 from the powder sampling tank 1 under the action of self gravity, the powder stays on the upper part of the sampling tube 2 under the blocking of other second electric switch valves 6 or the first electric switch valve 5, then the opened second electric switch valve 6 is closed, the first electric switch valve 5 and the rest second electric switch valves 6 are opened again, and the powder continuously falls down along the vertical sampling tube 2 under the action of self gravity. By controlling the number of openings and the positions of openings in the plurality of second electric switching valves 6, the length of the sampling tube 2 for containing the sampled powder can be controlled, thereby controlling the volume of the sample. The material blocking component 3 is arranged on the sampling tube 2, the material blocking component 3 is positioned between the first electric switch valve 5 and the sampling bag 4, and the material blocking component 3 is in a closed state during sampling. The falling powder cannot continue to fall under the blocking of the blocking component 3, the blocking component 3 is opened manually, and the powder enters the sampling bag 4 to complete the sampling operation.
The solid powder freely descends to the material blocking component 3 from the upper part of the sampling tube 2 in the line of the sampling tube 2, so that potential energy generated by powder descending is effectively eliminated, then a sampling person opens the material blocking component 3 to load the solid powder into the sampling bag 4, the sampling person is prevented from being damaged by direct impact of the solid powder, the sampling bag 4 is prevented from being damaged, and the safety of operation is improved. According to the utility model, the original sampling port is vertically connected with a process pipeline to convey powder with higher level to a low level, so that the sampling port of an original solid powder system is adjusted to the ground from the bottom of the powder sampling tank 1, potential energy generated by powder falling is eliminated by adopting the material blocking component 3, the manual sampling efficiency is improved, the sampling safety is ensured, the structure is simple, the operability is strong, and the safety and reliability are realized.
As shown in fig. 2, the material blocking assembly 3 includes a connecting member 31 and a material blocking plate 32, the connecting member 31 is disposed on the sampling tube 2, and a circular through hole 33 is formed in the connecting member 31 along the vertical direction. The connecting piece 31 comprises an upper flange-like structure and a lower flange-like structure, the sampling tube 2 is cut off at the upper flange-like structure, and the connecting piece 31 is arranged at the cut-off position and is welded with the sampling tube 2 in a sealing way; alternatively, the pipe is cut into a semicircular gap by using an angle grinder at the position of installing the material blocking assembly 3, and the connecting piece 31 is welded at the position of the gap of the pipe, and the material blocking plate 32 is required to be a circular plate. The connecting piece 31 is horizontally provided with a bar-shaped groove, the circular through hole 33 penetrates through the side wall of the bar-shaped groove, the baffle plate 32 is in sliding connection with the bar-shaped groove, falling solid powder is received through the baffle plate 32, potential energy generated by falling of the powder is eliminated, and the opening and closing of the circular through hole 33 are controlled through the baffle plate 32. In addition, the opening size of the circular through hole 33 can be changed by controlling the depth of the baffle plate 32 inserted into the strip-shaped groove, so that the solid powder blanking speed can be controlled. Preferably, the diameter of the circular through hole 33 is the same as the inner diameter of the sampling tube 2, and the circular through hole 33 is aligned with the sampling tube 2, so that the occurrence of dislocation is avoided and solid powder is retained. The width of the strip-shaped groove is not smaller than the diameter of the circular through hole 33, so that the striker plate 32 can completely seal the circular through hole 33.
As shown in fig. 1, the powder feeding pipe 10 is connected with a gas pipe 7, and the gas pipe 7 is used for introducing high-pressure nitrogen gas, so that the normal conveying of the solid powder is ensured under the condition that the quality of the solid powder is not affected.
In a preferred embodiment, the sampling mechanism comprises a second electrically operated switch valve 6, the second electrically operated switch valve 6 being arranged between the first end of the sampling tube 2 and the sampling port. First electric on-off valve 5 and first electric on-off valveThe distance between the two electric switch valves 6 is the length of the pipeline for sampling, and the volume of the sampled powder can be calculated by acquiring the distance between the first electric switch valve 5 and the second electric switch valve 6 and the inner diameter of the pipeline. The distance between the first electric switch valve 5 and the second electric switch valve 6 is d, d is 1000 mm-1500 mm, preferably 1200mm, the length of the sampled pipeline is 1200mm, the inner diameter of the sampling tube 2 is r, r is 60 mm-100 mm, preferably 80mm, and the sampled volume v is pi r 2 d。
As shown in fig. 3, the sampling tube 2 is a stainless steel tube, a strip-shaped hole 21 is axially formed in the sampling tube 2, and a transparent plate is mounted on the strip-shaped hole 21 in a sealing manner. The pipeline joint must be subjected to 100% nondestructive testing, then subjected to purging work, and after completion, put into use. The transparent plate is convenient for observe the conveying condition of solid powder in the sampling tube 2, determines whether the solid powder remains, avoids the powder of this sampling to remain in the sampling tube 2, and mixes in the powder of the next sampling, influences the precision of detection. In addition, a conventional pneumatic vibrator or an electric vibrator can be arranged on the sampling tube 2, and the conveying of the solid powder is assisted by vibrating the sampling tube 2, so that the solid powder sampled once is ensured to have no residue in the sampling tube 2.
According to the utility model, the original sampling port is vertically connected with a process pipeline to convey powder with higher level to a low level, so that the sampling port of an original solid powder system is adjusted to the ground from the bottom of the powder sampling tank 1, potential energy generated by powder descent is eliminated by adopting the material blocking component 3, the manual sampling efficiency is improved, the sampling safety is ensured, the structure is simple, the operability is strong, and the safety and reliability are realized.
In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; may be a communication between two elements or an interaction between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature, which may be in direct contact with the first and second features, or in indirect contact with the first and second features via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is level lower than the second feature.
In the description of the present specification, the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., refer to particular features, structures, materials, or characteristics described in connection with the embodiment or example as being included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that alterations, modifications, substitutions and variations may be made in the above embodiments by those skilled in the art within the scope of the utility model.
Claims (9)
1. The transformation device for the solid powder sampling system is characterized by comprising a powder sampling tank (1) and a sampling mechanism, wherein the powder sampling tank (1) is connected with a plurality of powder feeding pipes (10);
the sampling mechanism comprises a sampling tube (2), a blocking component (3), a sampling bag (4), a first electric switch valve (5) and at least one second electric switch valve (6); the bottom of the powder sampling tank (1) is provided with a sampling port, the sampling pipe (2) is vertically arranged, the first end of the sampling pipe (2) is connected with the sampling port, and the second end of the sampling pipe (2) is connected with the sampling bag (4); the plurality of second electric switch valves (6) are arranged on the sampling tube (2) at intervals, the first electric switch valve (5) is arranged on the sampling tube (2), and the first electric switch valve (5) is positioned below the second electric switch valve (6) close to the second end of the sampling tube (2); the material blocking assembly (3) is arranged on the sampling tube (2), and the material blocking assembly (3) is positioned between the first electric switch valve (5) and the sampling bag (4).
2. Retrofit device for solid powder sampling systems according to claim 1, characterized in that the blanking assembly (3) comprises a connection (31) and a blanking plate (32);
the connecting piece (31) is arranged on the sampling tube (2), and a circular through hole (33) is formed in the connecting piece (31) along the vertical direction;
the connecting piece (31) is horizontally provided with a strip-shaped groove, the circular through hole (33) penetrates through the side wall of the strip-shaped groove, and the baffle plate (32) is in sliding connection with the strip-shaped groove.
3. The retrofitting device for a solid powder sampling system according to claim 2, characterized in that the diameter of said circular through hole (33) is the same as the inner diameter of said sampling tube (2), and the width of said bar-shaped groove is not smaller than the diameter of said circular through hole (33).
4. A retrofit device for a solid powder sampling system according to any one of claims 1-3, characterized in that the powder feed pipe (10) is connected with a gas pipe (7).
5. A retrofit device for a solid powder sampling system according to any of the claims 1-3, characterized in that said sampling mechanism comprises one of said second electrically operated on-off valves (6), said second electrically operated on-off valve (6) being arranged between said sampling port and the first end of said sampling tube (2).
6. The retrofitting device for a solid powder sampling system according to claim 5, characterized in that the distance between said first electric on-off valve (5) and said second electric on-off valve (6) is 1000 mm-1500 mm.
7. A retrofit device for a solid powder sampling system according to any of claims 1-3, characterized in that the inner diameter of the sampling tube (2) is 60-100 mm.
8. A retrofitting device for a solid powder sampling system according to any of claims 1-3, characterized in that the sampling tube (2) is a stainless steel tube, a strip-shaped hole (21) is axially provided in the sampling tube (2), and a transparent plate is covered on the strip-shaped hole (21).
9. A retrofit device for a solid powder sampling system according to any of claims 1-3, characterized in that a vibrator is provided on the sampling tube (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320369034.2U CN219714842U (en) | 2023-03-02 | 2023-03-02 | Transformation device for solid powder sampling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320369034.2U CN219714842U (en) | 2023-03-02 | 2023-03-02 | Transformation device for solid powder sampling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219714842U true CN219714842U (en) | 2023-09-19 |
Family
ID=87996318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320369034.2U Active CN219714842U (en) | 2023-03-02 | 2023-03-02 | Transformation device for solid powder sampling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219714842U (en) |
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2023
- 2023-03-02 CN CN202320369034.2U patent/CN219714842U/en active Active
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