CN220455431U - Experimental device for measure negative pressure and carry to nano oxide powder static influence - Google Patents
Experimental device for measure negative pressure and carry to nano oxide powder static influence Download PDFInfo
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- CN220455431U CN220455431U CN202321485434.6U CN202321485434U CN220455431U CN 220455431 U CN220455431 U CN 220455431U CN 202321485434 U CN202321485434 U CN 202321485434U CN 220455431 U CN220455431 U CN 220455431U
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Abstract
The utility model relates to the technical field of production and manufacturing of nano oxide powder, in particular to an experimental device for measuring the electrostatic influence of negative pressure conveying on the nano oxide powder, which comprises a feeder, wherein a discharging opening is arranged right below a powder outlet of the feeder, one side of the discharging opening is provided with an inlet electrostatic detection module, and one side of the inlet electrostatic detection module is provided with a solid-gas two-phase flow conveying pipe; according to the utility model, powder to be detected is sent to the discharging opening through the feeding machine, then is contacted with the inlet electrostatic detection module through the discharging opening, the generated inlet electrostatic data is sent to the processor, the powder is contacted with the outlet electrostatic detection module through the solid-gas two-phase flow conveying pipe, the generated outlet electrostatic data is sent to the processor, and the influence data of the conveying process on the powder electrostatic is obtained by comparing the inlet electrostatic data and the outlet electrostatic data.
Description
Technical Field
The utility model relates to the technical field of production and manufacturing of nano oxide powder, in particular to an experimental device for measuring electrostatic influence of negative pressure conveying on nano oxide powder.
Background
Since the introduction, nano-oxide powder has been increasingly used in various fields of industrial production and social life, such as semiconductors, catalysts, printing media, sealants, adhesives, paints, inks, elastomers, medicines, foods, and the like. The nano oxide powder with different types, different surface groups and different particle sizes has very different properties and shows different characteristics in production, storage, transportation and use.
It is generally known that nano oxide powder has a low bulk density, and a negative pressure mode is mostly adopted in preparation, transportation and application. During these processes, a large amount of static electricity is generated due to collision friction between powder particles and between powder and a pipeline. Powder static electricity has negative effects on production and storage facilities except for some specific scenes (laser printing, electrostatic spraying and the like), such as powder accumulation on the inner wall of a conveying pipeline and production efficiency reduction. The change of powder static is also very important to the establishment of equipment model selection and process parameters in the production and use processes. How to accurately evaluate the electrostatic change of nano oxide powder in the negative pressure conveying process has become an important subject facing both supply and demand. The existing general powder static testing device adopts a static mode, is directly contacted with powder and interferes with the flow of the powder, can only test static charges in a static state, has large analysis error, and can not rapidly test the accurate change of static charges in the powder flowing process.
Disclosure of Invention
The utility model aims to provide an experimental device for measuring the electrostatic influence of negative pressure conveying on nano oxide powder, so as to solve the problems in the background technology.
The technical scheme of the utility model is as follows: the utility model provides a measure experimental apparatus of negative pressure and carry to nano oxide powder static influence, includes the feeder, be provided with the feed opening under the play powder mouth of feeder, one side of feed opening is provided with entry static detection module, one side of entry static detection module is provided with solid-gas two-phase flow conveyer pipe, one side of solid-gas two-phase flow conveyer pipe is provided with export static detection module, one side of export static detection module is provided with album powder case, one side of album powder case is provided with the draught fan, be provided with the pipeline of breathing in between draught fan and the collection powder case, flowmeter, governing valve, manometer and air-vent valve are installed on the breathing pipe way.
Preferably, the inlet electrostatic detection module and the outlet electrostatic detection module comprise a body, an insulating filling layer is arranged on the body, an annular sensor is arranged in the insulating filling layer, and the annular sensor is connected with a processor through a data line.
Preferably, the connection parts of the inlet electrostatic detection module and the outlet electrostatic detection module and the solid-gas two-phase flow conveying pipe, the connection parts of the inlet electrostatic detection module and the blanking opening and the connection parts of the outlet electrostatic detection module and the inlet of the powder collecting box all use fast-assembling clamping hoops.
Preferably, the adjustable buckle is installed on the powder collecting box, a pipe hoop is installed in the powder collecting box, the pipe hoop is fixed with a collecting bag, and an inlet of the powder collecting box is coaxial with an interface of the powder collecting bag.
Preferably, two pressure gauges are arranged on the powder collecting box.
Preferably, the powder collecting box, the flowmeter, the regulating valve, the first pressure gauge and the pressure regulating valve are all connected with the air suction pipeline in a flange connection mode.
The utility model provides an experimental device for measuring the electrostatic influence of negative pressure conveying on nano oxide powder through improvement, and compared with the prior art, the experimental device has the following improvement and advantages:
according to the utility model, powder to be detected is sent to the discharging opening through the feeding machine, then is contacted with the inlet electrostatic detection module through the discharging opening, the generated inlet electrostatic data is sent to the processor, the powder is contacted with the outlet electrostatic detection module through the solid-gas two-phase flow conveying pipe, the generated outlet electrostatic data is sent to the processor, and the influence data of the conveying process on the powder electrostatic is obtained by comparing the inlet electrostatic data and the outlet electrostatic data.
Drawings
The utility model is further explained below with reference to the drawings and examples:
FIG. 1 is a flow chart of an experimental apparatus for measuring the electrostatic impact of negative pressure delivery on nano-oxide powder in accordance with the present utility model;
FIG. 2 is a cross-sectional view of an electrostatic detection module of the present utility model;
fig. 3 is a plan view of the powder collecting bin of the present utility model.
Reference numerals illustrate:
1. a batch feeder; 2. a feed opening; 3. an inlet electrostatic detection module; 4. a solid-gas two-phase flow conveying pipe; 5. an outlet electrostatic detection module; 6. a powder collecting box; 7. a flow meter; 8. a regulating valve; 9. a first pressure gauge; 10. a pressure regulating valve; 11. an air suction line; 12. an induced draft fan; 13. a processor; 14. a collection bag; 15. a second pressure gauge; 16. a body; 17. an insulating filling layer; 18. an annular sensor; 19. a pipe clamp; 20. the buckle can be adjusted.
Detailed Description
The following detailed description of the present utility model clearly and fully describes the technical solutions of the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides an experimental device for measuring the electrostatic influence of negative pressure conveying on nano oxide powder by improving the experimental device, and the technical scheme of the utility model is as follows:
as shown in fig. 1-3, an experimental device for measuring the influence of negative pressure conveying on nano oxide powder static electricity comprises a feeder 1, wherein a discharging opening 2 is arranged right below a powder outlet of the feeder 1, one side of the discharging opening 2 is provided with an inlet static detection module 3, one side of the inlet static detection module 3 is provided with a solid-gas two-phase flow conveying pipe 4, one side of the solid-gas two-phase flow conveying pipe 4 is provided with an outlet static detection module 5, one side of the outlet static detection module 5 is provided with a powder collecting box 6, one side of the powder collecting box 6 is provided with an induced draft fan 12, an air suction pipeline 11 is arranged between the induced draft fan 12 and the powder collecting box 6, and a flowmeter 7, a regulating valve 8, a first pressure gauge 9 and a pressure regulating valve 10 are arranged on the air suction pipeline 11;
the feeder 1 is a screw feeding device driven by a motor, the motor is in variable frequency type, the feeding speed is regulated through variable frequency, and the screw is a single screw or a double screw, preferably a double screw;
the blanking mouth 2, the solid-gas two-phase flow conveying pipe 4 and the air suction pipeline 11 are made of polyvinyl chloride, polypropylene, cast iron, stainless steel, aluminum, titanium and aluminum alloy, and the solid-gas two-phase flow conveying pipe 4 and the air suction pipeline 11 also comprise PVC lining steel wire hoses and PU lining steel wire hoses;
the length of the solid-gas two-phase flow conveying pipe 4 can be adjusted;
the flowmeter 7 is a differential pressure type gas flowmeter;
the regulating valve 8 is a stainless steel ball valve or needle valve, and the gas flow is regulated by regulating the opening of the valve;
the first pressure gauge 9 is a spring tube type pressure gauge;
the pressure regulating valve 10 is a stainless steel ball valve, and the suction pressure is regulated by regulating the opening of the valve;
the induced draft fan 12 is a Roots fan or a centrifugal fan;
by starting the induced draft fan 12 and the feeder 1, powder to be detected is sent to the feed opening 2 through the feeder 1, then is contacted with the inlet electrostatic detection module 3 through the feed opening 2, the generated inlet electrostatic data is sent to the processor 13, the powder is contacted with the outlet electrostatic detection module 5 through the solid-gas two-phase flow conveying pipe 4, the generated outlet electrostatic data is sent to the processor 13, and the influence data of the conveying process on the powder electrostatic is obtained by comparing the inlet electrostatic data with the outlet electrostatic data.
Further, the inlet electrostatic detection module 3 and the outlet electrostatic detection module 5 comprise a body 16, an insulating filling layer 17 is arranged on the body 16, and an annular sensor 18 is arranged in the insulating filling layer 17;
the body 16 is made of metal and grounded, the annular sensor 18 is made of metal, and the annular sensor 18 is provided with a data wire connected with the processor 13;
the inlet electrostatic detection module 3 and the outlet electrostatic detection module 5 are both pipeline type non-contact annular sensors;
because the powder can accumulate charge to a certain extent in the negative pressure conveying process, the non-contact annular sensor can effectively capture the charged powder particle signals of each passing through the annular sensor, the signals are amplified and filtered by the amplifying circuit and are operated by the high-speed processor, the standard current signals which are in linear relation with the powder flow are output, and the accuracy of experimental data is improved.
Furthermore, quick-mounting clamping hoops are used at the connection parts of the inlet electrostatic detection module 3 and the outlet electrostatic detection module 5 and the solid-gas two-phase flow conveying pipe 4, at the connection parts of the inlet electrostatic detection module 3 and the blanking port 2 and at the connection parts of the outlet electrostatic detection module 5 and the powder collecting box inlet 6; so that the overall device can be assembled quickly.
Further, an adjustable buckle 20 is arranged on the powder collecting box 6, a pipe hoop 19 is arranged in the powder collecting box 6, a collecting bag 14 is fixed on the pipe hoop 19, and an inlet of the powder collecting box 6 is coaxial with an interface of the powder collecting bag 14; the collection bag 14 may store the powder.
The material of the collecting bag 14 is selected from polypropylene, polyester, nylon and polytetrafluoroethylene; the material is environmentally friendly and can increase the useful life of the collection bag 14.
Further, a second pressure gauge 15 is installed on the powder collecting box 6, and the second pressure gauge 15 is a spring tube type pressure gauge.
Further, the powder collecting box 6, the flowmeter 7, the regulating valve 8, the first pressure gauge 9 and the pressure regulating valve 10 are all connected with the air suction pipeline 11 in a flange mode.
Working principle: firstly, the length of a solid-gas two-phase flow conveying pipe 4 is regulated according to the requirement, then a blanking opening 2, an inlet electrostatic detection module 3, the solid-gas two-phase flow conveying pipe 4, an outlet electrostatic detection module 5, a powder collecting box 6, an air suction pipeline 11, a flowmeter 7, a regulating valve 8, a first pressure gauge 9, a pressure regulating valve 10 and an induced draft fan 12 are sequentially connected, the connection tightness is checked, then the inlet electrostatic detection module 3 and the outlet electrostatic detection module 5 are connected to a processor 13, the processor 13 is started, the induced draft fan 12 is started, the pressure regulating valve 10 and the regulating valve 8 are respectively regulated to select pressure and flow, a motor of a feeder 1 is regulated to select rotating speed, nano oxide powder is put in, powder to be measured is sent to a feed opening 2 through a feeder 1, then is contacted with an inlet electrostatic detection module 3 through the feed opening 2, generated inlet electrostatic data are sent to a processor 13, powder is contacted with an outlet electrostatic detection module 5 through a solid-gas two-phase flow conveying pipe 4, generated outlet electrostatic data are sent to the processor 13, data of the inlet electrostatic detection module 3 and the outlet electrostatic detection module 5 are recorded through the processor 13, electrostatic influence on the powder is calculated and conveyed, then the feeder 1 is closed, a second pressure gauge 15 is observed, an induced draught fan 12 is stopped after pressure is stabilized, an adjustable buckle 20 is opened to disassemble a powder collecting box 6, and dust collected by a collecting bag 14 is cleaned.
The previous description is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides a measure experimental apparatus of negative pressure and carry to nano oxide powder static influence, its characterized in that, including batch feeder (1), be provided with feed opening (2) under the play powder mouth of batch feeder (1), one side of feed opening (2) is provided with entry static detection module (3), one side of entry static detection module (3) is provided with solid-gas two-phase flow conveyer pipe (4), one side of solid-gas two-phase flow conveyer pipe (4) is provided with export static detection module (5), one side of export static detection module (5) is provided with album powder case (6), one side of album powder case (6) is provided with draught fan (12), be provided with suction line (11) between draught fan (12) and the collection powder case (6), install flowmeter (7), governing valve (8), first manometer (9) and air-vent valve (10) on suction line (11).
2. The experimental device for measuring electrostatic influence of negative pressure delivery on nano oxide powder according to claim 1, wherein: the inlet electrostatic detection module (3) and the outlet electrostatic detection module (5) are respectively provided with a body (16), an insulating filling layer (17) is arranged on the body (16), an annular sensor (18) is arranged in the insulating filling layer (17), and the annular sensor (18) is connected with a processor (13) through a data line.
3. The experimental device for measuring electrostatic influence of negative pressure delivery on nano oxide powder according to claim 1, wherein: the fast-assembling clamp is used at the joint of the inlet electrostatic detection module (3) and the outlet electrostatic detection module (5) and the solid-gas two-phase flow conveying pipe (4), the joint of the inlet electrostatic detection module (3) and the blanking port (2) and the joint of the outlet electrostatic detection module (5) and the powder collecting box inlet (6).
4. The experimental device for measuring electrostatic influence of negative pressure delivery on nano oxide powder according to claim 1, wherein: install adjustable buckle (20) on album powder case (6), and the internally mounted of album powder case (6) has ferrule (19), ferrule (19) are fixed with collection bag (14), collection powder case (6) entry is coaxial with the interface of powder collection bag (14).
5. The experimental device for measuring electrostatic influence of negative pressure delivery on nano oxide powder according to claim 1, wherein: and a second pressure gauge (15) is arranged on the powder collecting box (6).
6. The experimental device for measuring electrostatic influence of negative pressure delivery on nano oxide powder according to claim 1, wherein: the powder collecting box (6), the flowmeter (7), the regulating valve (8), the first pressure gauge (9), the pressure regulating valve (10) and the air suction pipeline (11) are all connected in a flange mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321485434.6U CN220455431U (en) | 2023-06-12 | 2023-06-12 | Experimental device for measure negative pressure and carry to nano oxide powder static influence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321485434.6U CN220455431U (en) | 2023-06-12 | 2023-06-12 | Experimental device for measure negative pressure and carry to nano oxide powder static influence |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220455431U true CN220455431U (en) | 2024-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321485434.6U Active CN220455431U (en) | 2023-06-12 | 2023-06-12 | Experimental device for measure negative pressure and carry to nano oxide powder static influence |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220455431U (en) |
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2023
- 2023-06-12 CN CN202321485434.6U patent/CN220455431U/en active Active
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