CN203423845U - Polyolefin particle static electricity eliminator - Google Patents
Polyolefin particle static electricity eliminator Download PDFInfo
- Publication number
- CN203423845U CN203423845U CN201320486908.9U CN201320486908U CN203423845U CN 203423845 U CN203423845 U CN 203423845U CN 201320486908 U CN201320486908 U CN 201320486908U CN 203423845 U CN203423845 U CN 203423845U
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- CN
- China
- Prior art keywords
- spray points
- conveying pipeline
- wind
- seat
- polyolefin particles
- 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.)
- Expired - Fee Related
Links
- 239000002245 particle Substances 0.000 title claims abstract description 31
- 229920000098 polyolefin Polymers 0.000 title claims abstract description 30
- 230000003068 static effect Effects 0.000 title claims abstract description 22
- 230000005611 electricity Effects 0.000 title abstract description 12
- 230000008030 elimination Effects 0.000 claims abstract description 7
- 238000003379 elimination reaction Methods 0.000 claims abstract description 7
- 239000007921 spray Substances 0.000 claims description 59
- 150000001450 anions Chemical class 0.000 claims description 9
- 238000007664 blowing Methods 0.000 claims description 9
- 150000001768 cations Chemical class 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 150000002500 ions Chemical class 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract 4
- 238000005299 abrasion Methods 0.000 abstract 2
- 230000003247 decreasing effect Effects 0.000 abstract 2
- 239000000428 dust Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 206010008469 Chest discomfort Diseases 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000002801 charged material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
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Landscapes
- Elimination Of Static Electricity (AREA)
Abstract
The utility model belongs to the technical field of the petrochemical industry, and particularly relates to a polyolefin particle static electricity eliminator used for ionic wind conveyed by pipelines. The diameter of the portion, used for eliminating static electricity, of a polyolefin particle conveying pipe is enlarged according to the equation that Q=C*V, C is decreased, V is increased under the condition that Q is not changed, and therefore the polyolefin particle static electricity eliminator is in favor of the electricity elimination effect. Meanwhile, electricity spraying needle bases are arranged on the enlarged pipe wall of the conveying pipe, and therefore the abrasion rate of the insulating portion of the conveying pipe is greatly lowered. Electricity spraying needles are arranged on the pipe wall of the conveying pipe in an inclined mode, and therefore the abrasion rate of the electricity spraying needle bases is effectively lowered, meanwhile, the contact area between ions and electrified polyolefin particles is enlarged, and the electricity elimination efficiency is improved. A wind pipe is used for supplying wind, and therefore wind consumption can be lowered, pressure of the pipe can be ensured, and the spraying direction of particle flow can be ensured. Compared with a traditional like product, the polyolefin particle static electricity eliminator has the advantages that the electricity elimination efficiency is increased to more than 95% from 90%, and the wind consumption of an instrument is decreased to 2Nm<3>/h from 5Nm<3>/h.
Description
Technical field
The utility model belongs to petrochemical technology field, be specifically related to a kind ofly for polyolefin particles (wind send or the gravitational discharge) process of carrying, eliminate the safety device of static, specifically a kind of ion wind polyolefin particles Xelminator for Pipeline transport.
Background technology
At petrochemical enterprise, polyolefin particles is carried in (wind send) process, due to reasons such as collision, frictions at gas, tend to carry a large amount of static, for big material bin, along with the increase of feed bin polyolefin particles inlet amount, gathering of static can be more and more especially, to this, all have experimental data both at home and abroad, the quantity of electric charge is at 1～5 μ C/kg, and external experiment shows, dielectric charge surpasses 0.1 μ C/kg, in feed bin (Φ 6m), just starts to discharge.Along with gathering of static, in feed bin, the voltage on stockpile surface is also more and more higher, in storehouse, discharge frequency also can be more and more faster, now, if exist fuel gas to reach explosion limit in feed bin, or the dust that reaches explosion limit is because the intervention of fuel gas reduces the situation of minimum fire ignition energy, and this electric discharge just can be ignited and breaking out of fire firing accident.Once specifically as there are abnormal conditions in production process, as gas exceed standard (reaction unstability, dry ineffective, the back-blowing system failure etc.), dust exceeding (extruder cutting knife is aging, air output occur not wire drawing phenomenon etc.), this electric discharge all can cause Electrostatic Fire accident; Particularly feed bin occurs extremely, and as blending pipe, fracture produces metal protrusion, or in feed bin, sticky wall material is over 4mm, and this electric discharge also can be brought out the high-energy discharges such as sparkover or propagated brush discharge, can directly light polyolefin dust.
Existing static technology for eliminating and product, pipeline type dust feed bin Xelminator as disclosed in CN1330218C, mainly by spray point and malleation air chamber (high pressure chest) two parts, formed, its spray point is vertically mounted on conveying pipeline outer wall by needle stand, owing to there being the plastic grain of high-speed cruising in pipeline, larger to the insulated part of needle stand (being generally highly dense plastics) destructiveness, spray points seat (insulated part) is short useful life, is easy to cause reduce the electrical efficiency that disappears because of insulation breakdown.Moreover existing equipment voltage withstand class is low, the outside thick corrosion resistant plate of 1.5mm that adopts of malleation air chamber (high pressure chest) is done ring packing conventionally, voltage endurance capability is very low, approximately 1.5 kg, require pressure 0.2MPa(approximately 20 kg with circuit design) differ greatly, can not meet existing Production requirement completely.Therefore, be badly in need of a kind of exercisable static technology for eliminating that is applicable to chemical industry Production requirement.
Utility model content
For addressing the above problem, the purpose of this utility model is to provide a kind of polyolefin particles Xelminator of efficient, withstand voltage and long service life.
The utility model is a kind of ion wind Xelminator, and principle is, by high pressure, makes local air produce ionization, then by dry air, ion is blown into the entrained electronics of pipeline and granule medium and neutralizes, to reach the object of elimination static.Polyolefin particles is charged both positive and negative polarity, because temperature, humidity, pipeline adhesion layer all may affect the variation of its polarity and amplitude, so ion wind Xelminator is the first-selection of this electric measure that disappears always.
the technical solution of the utility model is:polyolefin particles Xelminator, increase the diameter of eliminating static part polyolefin particles conveying pipeline, elimination static part conveying pipeline cross-sectional area is 1～2 times of conveying pipeline cross-sectional area, by sealing baffle 13, healthy tendency pressure chamber 14 is set destaticing on part conveying pipeline tube wall, destaticing in healthy tendency pressure chamber 14 is equipped with cation and anion spray points 4 on part conveying pipeline tube wall, spray points 4 leads in conveying pipeline, and spray points 4 is fixed in spray points seat 2, spray points seat 2 is installed on and is destaticed on part conveying pipeline tube wall by needle stand fixed mount 10, in spray points seat 2, be provided with blowing chamber 3, the airduct 12 that blowing chamber 3 is communicated with in healthy tendency pressure chamber 14, airduct 12 is connected with extraneous air wind regime by wind joint 1, wind joint 1 connects external pressure sensor simultaneously,
Described spray points 4 afterbodys connect high-tension cable 7 by resistance 6, and spray points 4 and resistance 6 are fixed in spray points seat 2 by sealing resin 5; Connect cation spray points 4 high-tension cables 7 and connect positive high voltage generator 8, connect anion spray points 4 high-tension cables 7 and connect negative high-voltage generator 9, positive high voltage generator 8 is connected respectively outside regulator with negative high-voltage generator 9 by cable sealed joint 15.
Described spray points 4 with destatic part conveying pipeline tube wall plane and be 15 °～30 ° and tilt to install.
Described spray points seat 2 is only arranged at and destatics on part conveying pipeline tube wall along destaticing part conveying pipeline pipe week arc length 60mm/.
Described spray points seat 2 arranges two circles destaticing on part conveying pipeline tube wall, above a circle cation spray points 4 is installed, below a circle anion spray points 4 is installed.
Between described spray points seat 2 and needle stand fixed mount 10, O RunddichtringO 11 is set, strengthens the fixing of specking needle stand 2.
the beneficial effects of the utility model are as follows:
1, increase the diameter of eliminating static part polyolefin particles conveying pipeline, according to the Q(quantity of electric charge)=C(electric capacity) * V(voltage) principle, the diameter of eliminating static part polyolefin particles conveying pipeline increases, C reduces, in identical Q situation, V increases, and electric effect contributes to disappear; Spray points seat is arranged on the conveying pipeline tube wall of increase simultaneously, greatly reduces its insulated part wear rate.
2, spray points tilts to be installed on conveying pipeline tube wall, effectively reduces the wear rate of spray points seat, increases the contact area of ion and charged polyolefin particles simultaneously, increases the electrical efficiency that disappears.
3, adopt airduct air feed, both can lower air quantity consumption, guarantee loine pressure, also can guarantee the emission direction of particle flux.
4, compare with traditional like product, the electrical efficiency that disappears is brought up to more than 95% from 90%, and instrument wind consumes by original 5Nm
3/ h drops to 2Nm
3/ h.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is vertical view of the present utility model;
Fig. 3 is the structural representation of the utility model specking needle stand.
In figure: 1, wind joint; 2, spray points seat; 3, blowing chamber; 4, spray points; 5, sealing resin; 6, resistance; 7, high-tension cable; 8, positive high voltage generator; 9, negative high-voltage generator; 10, needle stand fixed mount; 11, O RunddichtringO; 12, airduct; 13, sealed baffle; 14, malleation chamber; 15, cable sealed joint.
Embodiment
Below in conjunction with specific embodiment, the utility model is elaborated.
As depicted in figs. 1 and 2, polyolefin particles Xelminator, increase the diameter of eliminating static part polyolefin particles conveying pipeline, elimination static part conveying pipeline cross-sectional area is 1.5 times of conveying pipeline cross-sectional area, by sealing baffle 13, healthy tendency pressure chamber 14 is set destaticing on part conveying pipeline tube wall, destaticing in healthy tendency pressure chamber 14 is equipped with cation and anion spray points 4 on part conveying pipeline tube wall, spray points 4 leads in conveying pipeline, and spray points 4 is fixed in spray points seat 2, specking needle stand structure as shown in Figure 3, spray points seat 2 is installed on and is destaticed on part conveying pipeline tube wall by needle stand fixed mount 10, between spray points seat 2 and needle stand fixed mount 10, O RunddichtringO 11 is set, strengthen the fixing of specking needle stand 2, in spray points seat 2, be provided with blowing chamber 3, the airduct 12 that blowing chamber 3 is communicated with in healthy tendency pressure chamber 14, airduct 12 is connected with extraneous air wind regime instrument wind by wind joint 1, wind joint 1 connects external pressure sensor simultaneously, instrument wind enters airduct 12 from the wind joint 1 of airduct 12 one end, after circulation, from being in charge of the wind joint 1 of 12 other ends, discharges monitor, spray points 4 afterbodys connect high-tension cable 7 by resistance 6, and spray points 4 and resistance 6 are fixed in spray points seat 2 by sealing resin 5,
The utility model polyolefin particles Xelminator, flange is mounted on polyolefin particles bin feed pipe line or packing bin outlet, is generally arranged within the scope of front 0.5～2 meter of static detector, and equipment is grown 0.4 meter.There are the two external airduct 12 interface wind joints 1 in place, one-in-and-one-out (general), during work, open outside regulator programmable controller (PLC), compressed air (instrument wind) electromagnetically operated valve is opened, when feeding back to the blast of pressure sensor (external equipment), reach after set point (2～10kPa), positive high voltage generator 8 and negative high-voltage generator 9 are started working, spray points 4 needle point surrounding airs start ionization, the compressed air that the ion producing is blown in blowing chamber 3 with airduct 12 enters in conveying pipeline, mix with charged material polyolefin particles and neutralize the electricity that disappears.The operating voltage of positive or negative high voltage generator is all adjustable, if adopt identical value (more than 5kV), the electrical efficiency that disappears can reach more than 80%, certainly, by static detector, regulates, and the electrical efficiency that disappears can reach more than 95%.
Experimental results show that: this Xelminator is compared with traditional like product, the electrical efficiency that disappears is brought up to more than 95% from 90%, and instrument wind consumes by original 5Nm
3/ h drops to 2Nm
3/ h.
Claims (5)
1. polyolefin particles Xelminator, it is characterized in that, increase the diameter of eliminating static part polyolefin particles conveying pipeline, elimination static part conveying pipeline cross-sectional area is 1～2 times of conveying pipeline cross-sectional area, by sealing baffle (13), healthy tendency pressure chamber (14) is set destaticing on part conveying pipeline tube wall, destaticing in healthy tendency pressure chamber (14) is equipped with cation and anion spray points (4) on part conveying pipeline tube wall, spray points (4) leads in conveying pipeline, and spray points (4) is fixed in spray points seat (2), spray points seat (2) is installed on and is destaticed on part conveying pipeline tube wall by needle stand fixed mount (10), in spray points seat (2), be provided with blowing chamber (3), blowing chamber (3) is communicated with the airduct (12) in healthy tendency pressure chamber (14), airduct (12) is connected with extraneous air wind regime by wind joint (1), wind joint (1) connects external pressure sensor simultaneously, described spray points (4) afterbody connects high-tension cable (7) by resistance (6), and spray points (4) and resistance (6) are fixed in spray points seat (2) by sealing resin (5), connect cation spray points (4) high-tension cable (7) and connect positive high voltage generator (8), connect anion spray points (4) high-tension cable (7) and connect negative high-voltage generator (9), positive high voltage generator (8) is connected respectively outside regulator with negative high-voltage generator (9) by cable sealed joint (15).
2. polyolefin particles Xelminator according to claim 1, is characterized in that, described spray points (4) with destatic part conveying pipeline tube wall plane and be 15 °～30 ° and tilt install.
3. polyolefin particles Xelminator according to claim 1 and 2, is characterized in that, described spray points seat (2) is only arranged at and destatics on part conveying pipeline tube wall along destaticing part conveying pipeline pipe week arc length 60mm/.
4. according to the polyolefin particles Xelminator described in claim 1 or 2 or 3, it is characterized in that, described spray points seat (2) arranges two circles destaticing on part conveying pipeline tube wall, above a circle cation spray points (4) is installed, below a circle anion spray points (4) is installed.
5. polyolefin particles Xelminator according to claim 1, is characterized in that, between described spray points seat (2) and needle stand fixed mount (10), O RunddichtringO (11) is set, and strengthens the fixing of specking needle stand (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320486908.9U CN203423845U (en) | 2013-08-12 | 2013-08-12 | Polyolefin particle static electricity eliminator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320486908.9U CN203423845U (en) | 2013-08-12 | 2013-08-12 | Polyolefin particle static electricity eliminator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203423845U true CN203423845U (en) | 2014-02-05 |
Family
ID=50022934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320486908.9U Expired - Fee Related CN203423845U (en) | 2013-08-12 | 2013-08-12 | Polyolefin particle static electricity eliminator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203423845U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109688682A (en) * | 2018-12-30 | 2019-04-26 | 上海安平静电科技有限公司 | A kind of direct current powder charger-eliminator and eliminate system |
| CN109688683A (en) * | 2018-12-30 | 2019-04-26 | 上海安平静电科技有限公司 | A kind of exchange powder charger-eliminator and powder conveying pipeline charge eliminate system |
| CN110753435A (en) * | 2018-07-23 | 2020-02-04 | 深圳市中明科技股份有限公司 | Powder static eliminator and method of using the same |
-
2013
- 2013-08-12 CN CN201320486908.9U patent/CN203423845U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110753435A (en) * | 2018-07-23 | 2020-02-04 | 深圳市中明科技股份有限公司 | Powder static eliminator and method of using the same |
| CN109688682A (en) * | 2018-12-30 | 2019-04-26 | 上海安平静电科技有限公司 | A kind of direct current powder charger-eliminator and eliminate system |
| CN109688683A (en) * | 2018-12-30 | 2019-04-26 | 上海安平静电科技有限公司 | A kind of exchange powder charger-eliminator and powder conveying pipeline charge eliminate system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140205 Termination date: 20160812 |