CN204137906U - A kind of pulsed powder feeding device - Google Patents
A kind of pulsed powder feeding device Download PDFInfo
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- CN204137906U CN204137906U CN201420546442.1U CN201420546442U CN204137906U CN 204137906 U CN204137906 U CN 204137906U CN 201420546442 U CN201420546442 U CN 201420546442U CN 204137906 U CN204137906 U CN 204137906U
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Abstract
The utility model discloses a kind of pulsed powder feeding device, comprise pretreatment tank, powder storage tank, high-pressure air source, gauge line and pressure controller; The feed end of powder storage tank is connected with pretreatment tank, and the discharge end of powder storage tank is connected with the feed end of gauge line by metering pipe valve, and the discharge end of gauge line is connected with reactor by blow-off valve, is connected with conveying fan between blow-off valve and reactor; The feed end of described gauge line is also connected with high-pressure air source by purging air valve, purges air valve and is connected with powder recycling can by blowdown valve.Pulsed powder feeding device described in the utility model, avoid the generation of the bridge formation in powder conveying process, caking, plugging phenomenon, can realize under high pressure working condition continuously, full automaticity, precision pulse formula be reinforced, avoid equipment attrition to a certain extent and pollute downstream material.
Description
Technical field
The utility model relates to powder material automatic feeding device, particularly relates to a kind of pulsed powder feeding device.
Background technology
Conveying powdery material is quantitatively needed, as ink, coating, catalytic polymerization etc. in numerous industrial process.The operational throughput of the conveying of conventional ribbon, crawler belt and gauging device is large, but measuring accuracy is low, and is not suitable for the environment having pressure.At present accurate conveying powder and equipment not to be caused damage or to pollute the automatic gauge feeding device of downstream material not yet full-fledged under hyperbaric environment.As Chinese invention patent CN200810138748.2 removes magnetic by magnetism stick, vibrator and pressurized air induction apparatus, avoids reunion and latch up phenomenon.But owing to adopting helixes feed equipment to control feeding quantity, precision is not high.The powder material autoweighting feeder that Chinese invention patent CN201010127075.8 proposes have employed to have determines capacity and rotatable storage compartment volume metering ball valve, can under hyperbaric environment, utilize pressure reduction to carry out the metered charge of powder.But ball valve frequently rotates, powder enters between sphere and sealing surface of seat, and easy abradable seal plane materiel material, both affected sealing, and easily caused again the pollution of downstream material.China utility patent CN99206013.3 utilizes the bottom of powder storage tank to add weighting apparatus, to measure powder addition, but under elevated pressure conditions, powder storage tank wall thickness weight is large, and many powders are as low in ultra-fine nano-powder, aerosil equidensity, with this understanding, in storage tank, the total weight rate of change caused by change of powder volume is low, and weight method is difficult to accurate measurement.The practical patent CN203064810U of China (title: powder material automatic feeding device under a kind of hyperbaric environment) provide a kind of realize condition of high voltage under the continuous charging of various flow powder material, measuring accuracy high, without equipment attrition, do not pollute downstream material, without the need to manual operation, the powder material automatic feeding device avoiding personal error.But still existence charge bridge, feed-stock pipeline easily blocks, feed program haves much room for improvement problem in actual use.
Utility model content
Utility model object: the purpose of this utility model is that the inapplicable hyperbaric environment of powder material automatic feeding device of the prior art, operating cost are high in order to solve, easily build bridge in conveying powder metering low precision, course of conveying, easily blocking produce to downstream and bring hidden danger defect, the generation of a kind of bridge formation avoided in powder conveying process, caking, plugging phenomenon is provided, under high pressure working condition, realizes continuous, full automaticity, precision pulse formula feeding device.
Technical scheme: a kind of pulsed powder feeding device described in the utility model, comprises pretreatment tank, powder storage tank, high-pressure air source, gauge line and pressure controller; The feed end of powder storage tank is connected with pretreatment tank, discharge end is connected with the feed end of gauge line by measuring pipe valve, and the discharge end of gauge line is connected with reactor by blow-off valve, is connected with conveying fan between blow-off valve and reactor; The feed end of described gauge line is also connected with high-pressure air source by purging air valve, purges air valve and is connected with powder recycling can by blowdown valve simultaneously; Described powder storage tank is also provided with pressure controller, and pressure controller is connected with tail gas recycle tank by the first valve, is connected with nitrogen pot by the second valve; Connection between the said equipment is all connected by pipeline.The valvular open and close of pulsed powder feeding device described in the utility model control by control system, and this control system is prior art, does not repeat them here.
Further, described powder storage tank is also connected with mixing device.Effectively can improve powder bridge formation caking phenomenon in powder storage tank.
Further, blower fan is connected with between described blow-off valve and conveying fan.In case when the pressure of high-pressure air source is inadequate, guarantees that in pipeline, powder normally can enter reactor, keep good conveying effect.
Further, described gauge line is T font or Y-shaped.Select T font or the Y-shaped gauge line of specific standard according to actual needs, be convenient to so accurately to the powder material automatic gauge flowed in downstream unit.
Further, the gas in described high-pressure air source is air, nitrogen or reactant gas.In technical scheme described in the utility model, can according to the needs of actual production, reactant gas can select the alkene such as ethene, propylene and the alkadiene such as butadidenne, isoprene.
Working process and the principle of work of pulsed powder feeding device described in the utility model are as follows:
A) open and close of switch valve periodicity make to produce pressure reduction between pretreatment tank and powder storage tank, and when switch valve is opened time, powder storage tank internal pressure reduces, and the powder in pretreatment tank is sent to powder storage tank; Pressure controller realizes the alternately open and close of the control of powder storage tank internal pressure by the first valve and the second valve, the equilibrium of pressure in powder storage tank is kept with this, when hypertonia in powder storage tank, then open the first valve, close the second valve, portion gas is made to be delivered to tail gas recycle tank, reduce the pressure in powder storage tank, when hypotony in powder storage tank, then open the second valve, close the first valve, the nitrogen in nitrogen pot is delivered to powder storage tank;
B) close metering pipe valve and blow-off valve, open blowdown valve, make the pressure in gauge line and downstream unit pressure reach balance;
C) close blowdown valve, open metering pipe valve, make powder enter gauge line by powder storage tank;
D) close metering pipe valve, open successively and purge air valve, blow-off valve, utilize high-pressure air source to be blown by the powder in gauge line to conveying fan and export; Periodic cycle like this controls powder blanking.
In pulsed powder feeding device described in the utility model, each valve adopts valve conventional in the art to realize the technical program.In addition, can by control system to each valve setpoint frequency and order open and close in the utility model.
The powder bulk density scope that the utility model is suitable for is 0.05 ~ 4g/cm
3, particle size range is 0.01 ~ 100 micron, excessive may cause powder build bridge or blocking diffuser.
Beneficial effect: pulsed powder feeding device described in the utility model, avoid the generation of the bridge formation in powder conveying process, caking, plugging phenomenon, can realize under high pressure working condition continuously, full automaticity, precision pulse formula be reinforced, avoid equipment attrition to a certain extent and pollute downstream material.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
In order to deepen understanding of the present utility model, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, and this embodiment, only for explaining the utility model, does not form the restriction to the utility model protection domain.
Embodiment
Pulsed powder feeding device, comprises pretreatment tank 2, powder storage tank 1, high-pressure air source 3, gauge line 10 and pressure controller 9; The feed end of powder storage tank 1 is connected with pretreatment tank 2, and discharge end is connected with the feed end of gauge line 10 by metering pipe valve 12, and the discharge end of gauge line 10 is connected with reactor 7 by blow-off valve 14, is connected with conveying fan 5 between blow-off valve 14 and reactor 7; The feed end of gauge line 10 is also connected with high-pressure air source 3 by purging air valve 13, purges air valve 13 and is connected with powder recycling can 6 by blowdown valve 15 simultaneously; Powder storage tank 1 is also provided with pressure controller 9, and pressure controller 9 is connected with tail gas recycle tank 18 by the first valve 16, be connected with nitrogen pot 19 by the second valve 17; Connection between the said equipment is all connected by pipeline.Powder storage tank 1 is also connected with mixing device 8, is connected with blower fan 4 between blow-off valve 14 and conveying fan 5.The valvular open and close of the present embodiment control by control system, and this control system is prior art, does not repeat them here.
Working process is as follows:
A) switch valve 11 is periodically opened and pass makes to produce pressure reduction between pretreatment tank 2 and powder storage tank 1, and when switch valve 11 is opened time, powder storage tank 1 internal pressure reduces, and the powder in pretreatment tank 2 is sent to powder storage tank 1; The control of pressure controller 9 pairs of powder storage tank 1 internal pressures is realized by the alternately open and close of the first valve 16 and the second valve 17, the equilibrium of pressure in powder storage tank 1 is kept with this, when hypertonia in powder storage tank 1, then open the first valve 16, close the second valve 17, portion gas is made to be delivered to tail gas recycle tank 18, reduce the pressure in powder storage tank 1, when hypotony in powder storage tank 1, then open the second valve 17, close the first valve 16, the nitrogen in nitrogen pot 19 is delivered to powder storage tank 1;
B) close metering pipe valve 12 and blow-off valve 14, open blowdown valve 15, make the pressure in gauge line 10 and downstream unit pressure reach balance;
C) close blowdown valve 15, open metering pipe valve 12, make powder enter gauge line 10 by powder storage tank 1;
D) metering pipe valve 12 is closed, open successively and purge air valve 13, blow-off valve 14, utilize high-pressure air source 3 to be blown by the powder in gauge line 10 to conveying fan 2 to export, blower fan 4 is always in running order, in case when the pressure of high-pressure air source 3 is inadequate, guarantee that in pipeline, powder normally can enter reactor, keep good conveying effect; Periodic cycle like this controls powder blanking.
The utility model is by producing the application in block copolymerization polypropylene product, and its properties of product test display, the ethylene contents and the xylene soluble content that characterize erosion-resisting characteristics are better than current industrial products more.Wherein because ethylene contents is high, hydrogen is adjusted limited in one's ability, so the MFR of product (melt mass flow rate) is less than 1g/10min more, product summary ethylene contents reaches 15-20wt%, and simple beam impact strength (23 DEG C) is greater than 70kJ/m
2.In art production process, be polymerized each reactor have no affect steady production strange phenomena occur, every controlling of production process parameter is all in range of control.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. a pulsed powder feeding device, is characterized in that, comprises pretreatment tank, powder storage tank, high-pressure air source, gauge line and pressure controller; The feed end of powder storage tank is connected with pretreatment tank, discharge end is connected with the feed end of gauge line by measuring pipe valve, and the discharge end of gauge line is connected with reactor by blow-off valve, is connected with conveying fan between blow-off valve and reactor; The feed end of described gauge line is also connected with high-pressure air source by purging air valve, purges air valve and is connected with powder recycling can by blowdown valve simultaneously; Described powder storage tank is also provided with pressure controller, and pressure controller is connected with tail gas recycle tank by the first valve, is connected with nitrogen pot by the second valve; Connection between the said equipment is all connected by pipeline.
2. pulsed powder feeding device according to claim 1, is characterized in that, described powder storage tank is also connected with mixing device.
3. pulsed powder feeding device according to claim 1 and 2, is characterized in that, is connected with blower fan between described blow-off valve and conveying fan.
4. pulsed powder feeding device according to claim 1 and 2, is characterized in that, described gauge line is T font or Y-shaped.
5. the pulsed powder feeding device according to claim 1 or 2 any one, is characterized in that, the gas in described high-pressure air source is air, nitrogen or reactant gas.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420546442.1U CN204137906U (en) | 2014-09-22 | 2014-09-22 | A kind of pulsed powder feeding device |
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| CN201420546442.1U CN204137906U (en) | 2014-09-22 | 2014-09-22 | A kind of pulsed powder feeding device |
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| CN204137906U true CN204137906U (en) | 2015-02-04 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105775748A (en) * | 2016-04-20 | 2016-07-20 | 陕西延长石油（集团）有限责任公司 | Rotary feeding pulverized coal quantitative feeding and conveying device and method |
| CN105803900A (en) * | 2016-05-12 | 2016-07-27 | 广西国创道路材料有限公司 | Color powder adding device for colored asphalt |
| CN108554341A (en) * | 2018-03-27 | 2018-09-21 | 清远佳致新材料研究院有限公司 | A kind of pulse streaming reaction kettle |
| CN108946176A (en) * | 2017-05-19 | 2018-12-07 | 中国石化工程建设有限公司 | A kind of devices and methods therefor of catalyst safe transport between mutual exclusion environment |
| CN109625862A (en) * | 2018-12-29 | 2019-04-16 | 北方奥钛纳米技术有限公司 | Powder charging (feeding) equipment |
| CN110271867A (en) * | 2018-03-14 | 2019-09-24 | 正泰集团股份有限公司 | Solid-state hydrogenation plant |
| CN113844917A (en) * | 2021-10-08 | 2021-12-28 | 佛山市金银河智能装备股份有限公司 | Powder self-bleeding filtering mechanism |
-
2014
- 2014-09-22 CN CN201420546442.1U patent/CN204137906U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105775748A (en) * | 2016-04-20 | 2016-07-20 | 陕西延长石油（集团）有限责任公司 | Rotary feeding pulverized coal quantitative feeding and conveying device and method |
| CN105803900A (en) * | 2016-05-12 | 2016-07-27 | 广西国创道路材料有限公司 | Color powder adding device for colored asphalt |
| CN108946176A (en) * | 2017-05-19 | 2018-12-07 | 中国石化工程建设有限公司 | A kind of devices and methods therefor of catalyst safe transport between mutual exclusion environment |
| CN110271867A (en) * | 2018-03-14 | 2019-09-24 | 正泰集团股份有限公司 | Solid-state hydrogenation plant |
| CN108554341A (en) * | 2018-03-27 | 2018-09-21 | 清远佳致新材料研究院有限公司 | A kind of pulse streaming reaction kettle |
| WO2019184028A1 (en) * | 2018-03-27 | 2019-10-03 | 清远佳致新材料研究院有限公司 | Pulse-flow-type reaction kettle |
| CN109625862A (en) * | 2018-12-29 | 2019-04-16 | 北方奥钛纳米技术有限公司 | Powder charging (feeding) equipment |
| CN113844917A (en) * | 2021-10-08 | 2021-12-28 | 佛山市金银河智能装备股份有限公司 | Powder self-bleeding filtering mechanism |
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