CN104896883A - Nitrogen dehumidification dryer and dehumidification drying method of plastic material - Google Patents
Nitrogen dehumidification dryer and dehumidification drying method of plastic material Download PDFInfo
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- CN104896883A CN104896883A CN201510332216.2A CN201510332216A CN104896883A CN 104896883 A CN104896883 A CN 104896883A CN 201510332216 A CN201510332216 A CN 201510332216A CN 104896883 A CN104896883 A CN 104896883A
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- nitrogen
- charging basket
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- heat pump
- sealer charging
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Abstract
The invention relates to a nitrogen dehumidification dryer and a dehumidification drying method of a plastic material, which can effectively shorten the drying time and improve the drying effect. The specific technical scheme is that a sealed material barrel is connected with a nitrogen delivery device; the device comprises a compressed air filter, a nitrogen evolver, a blower and a heating device which are arranged on a delivery pipeline in sequence; the compressed air filter is arranged at an inlet of the delivery pipeline; an output end of the compressed air filter is connected with the nitrogen evolver; an output end of the nitrogen evolver is connected with the blower; the blower is connected with the sealed material barrel; the part of the delivery pipeline between the blower and the sealed material barrel is provided with the heating device. The extremely dry nitrogen is adsorbed to molecules separated from the plastic material in the sealed material barrel to discharge the molecules; compared with a pure baking means, more time is saved, the drying effect is greatly improved, and the drying requirements of various plastic materials, particularly the transparent plastic material, are easily met.
Description
Technical field
The present invention relates to the removal moisture drying method of dehumidifying heat pump and plastic rubber material.
Background technology
The existing technology being applied in plastic rubber material removal moisture drying has two kinds both at home and abroad, and the first compressed air drier is obtained drier air to the moisture be separated in air be sent to next dry plastic rubber material in material barrel.The second is that direct drier is to the moisture in the hot-air of hot air circulation in material barrel of evolving.Above two kinds of technological deficiencies and reason have; The first needs the compressed air of elevated pressures to purify air, and overlong time required during dry plastic rubber material; The technological deficiency that the second exists is that drier can very fast being polluted, and makes the life-span of drier not long.Cause the reason of this defect to be that plastic rubber material has the powder such as moisture, mist of oil, plastic rubber material when heat drying, moreover drier needs reparation to carry out periodic duty, in the process of repairing, need a large amount of electric energy and cooling water.Equally also exist plastic rubber material dry time required overlong time.And the topmost defect of first two dry technology to be the aridity of plastic rubber material inadequate, cause the product produced to exist becoming color and the inadequate shortcoming of transparency.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of nitrogen dehumidifying heat pump and the method for strengthening plastic rubber material drying effect.
For solving the problem, the technical solution adopted in the present invention is as follows: a kind of nitrogen dehumidifying heat pump, comprise sealer charging basket, described sealer charging basket is provided with automatic material feeding device, moisture outlet, also comprise nitrogen gas conveying device, described nitrogen gas conveying device comprises the compressed-air filter be set in turn on conveyance conduit, nitrogen evolution device, air blast and heater, described compressed-air filter is arranged on the arrival end of described conveyance conduit, the output of described compressed-air filter is connected with described nitrogen evolution device, the output of described nitrogen evolution device is connected with described air blast, the port of export of described conveyance conduit is connected with described sealer charging basket, conveyance conduit part between described air blast and described sealer charging basket is provided with described heater.
Foregoing nitrogen dehumidifying heat pump, also comprises heated air circulation device, and described heated air circulation device is connected with described sealer charging basket, and the output of described heated air circulation device is connected with described air blast.
Foregoing nitrogen dehumidifying heat pump, is provided with filter in described heated air circulation device.
Foregoing nitrogen dehumidifying heat pump, described heater is heating tube.
Foregoing nitrogen dehumidifying heat pump, the air inlet of described nitrogen evolution device is provided with air inlet electromagnetic valve, and described nitrogen evolution device exhaust outlet is provided with exhaust solenoid valve, is provided with pressure-reducing valve between described nitrogen evolution device and described air blast; Check valve is provided with between described nitrogen evolution device and described pressure-reducing valve.
Foregoing nitrogen dehumidifying heat pump, described nitrogen evolution device is provided with nitrogen reflux device.
Foregoing nitrogen dehumidifying heat pump, the exhaust outlet of described nitrogen evolution device is provided with silencer.
A removal moisture drying method for plastic rubber material, comprises the following steps:
S1, will need the plastic rubber material of removal moisture drying by putting into sealer charging basket, and the temperature of adjustment sealer charging basket is toasted, and the moisture comprised by plastic rubber material is evaporated;
Water in air, oil, dust etc. are filtered with compressed-air filter by S2;
S3, sends into nitrogen evolution device through filtered air, oxygen is wherein separated discharge with water, obtains dry pure nitrogen;
S4, heats nitrogen, is then inputted into sealer charging basket;
S5, on the moisture of nitrogen adsorption in sealer charging basket, discharges.
The removal moisture drying method of foregoing plastic rubber material, further comprising the steps of:
S6, the nitrogen of the incomplete adsorption moisture of the part in sealer charging basket is discharged;
S7, inputs in sealer charging basket after being reheated by the nitrogen of discharge again.
The removal moisture drying method of foregoing plastic rubber material, comprises the following steps between described step S6 to S7:
S8, filters, by the impurity filtering in nitrogen the nitrogen of discharging.
Compared to existing technology, beneficial effect of the present invention is: the plastic rubber material sealer charging basket put into heat cycles is set required temperature and carries out heated baking, the compressed air of 5kg pressure is provided simultaneously, carry out preliminary filtration to compressed-air filter to be transported to inside nitrogen evolution device (be equipped with inside evolution device carbon molecular sieve be used for oxygen separation and moisture) again and to evolve, oxygen in air is separated discharge with moisture, obtain very dry pure nitrogen, then nitrogen is transported in sealer charging basket endlessly carries out heat cycles.When the temperature in material barrel reaches the temperature of setting, simultaneously along with moisture being evaporated slowly of the past plastic rubber material inside of time, after moisture is evaporated can adsorb by around a large amount of dry nitrogen and then discharge outside sealer charging basket.This process effectively can fill the plastic rubber material inside sealer charging basket the drying of part at short notice, can not affect by the temperature of outside air, humidity completely.This moisture in air and oxygen (oxygen energy oxidation material) are removed after remained by very dry pure nitrogen heat the drying means carrying out toasting plastic rubber material, a lot of time is saved compared to pure baking means, and drying effect is greatly improved, easily reach the dry requirement of various plastic rubber material, especially perspex material.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention;
In figure, mark is described as follows:
1, sealer charging basket; 2, automatic feeding device; 3, moisture outlet; 4, plastic rubber material; 5, compressed-air filter; 6, air inlet electromagnetic valve; 7, exhaust solenoid valve; 8, carbon molecular sieve; 9, silencer; 10, carbon molecular sieve cylinder body; 11, check valve; 12, nitrogen reflux device; 13, pressure-reducing valve; 14, air blast; 15, conveyance conduit; 16, heat-generating pipe; 17, heated air circulation device.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
A kind of nitrogen dehumidifying heat pump as shown in Figure 1, comprise sealer charging basket 1, sealer charging basket 1 is provided with automatic material feeding device 2, moisture outlet 3, also comprise nitrogen gas conveying device, nitrogen gas conveying device comprise set gradually compressed-air filter 5, air inlet electromagnetic valve 6, exhaust solenoid valve 7, nitrogen evolution device (comprising carbon molecular sieve 8 and carbon molecular sieve cylinder body 10), silencer 9, check valve 11, nitrogen reflux device 12, pressure-reducing valve 13.The output of compressed-air filter 5 is connected with air inlet electromagnetic valve 6, air inlet electromagnetic valve 6 output is connected with carbon molecular sieve cylinder body 10, two carbon molecular sieve cylinder body 10 nitrogen reflux devices 12 are interconnected, carbon molecular sieve cylinder body 10 output is connected with check valve 11, check valve 11 output is connected with pressure-reducing valve 13, pressure-reducing valve 13 output is connected with air blast 14, the port of export of conveyance conduit 15 is connected with sealer charging basket 1, conveyance conduit part between air blast 14 and sealer charging basket 1 is provided with heater 16, conveyance conduit refers on nitrogen dehumidifying heat pump for carrying the pipeline of gas.
Compressed-air filter 5 acts on: carry the compressed air containing harmful substances such as dust, oil, iron rust and moisture, enter compressed-air filter 5 first order filter.When compressed air produces coalescent effect by during first order tubular mesh filtration core, larger particle will be attracted on filter material, and moisture can condense into larger water droplet.When entering separation chamber, compressed air speed slows down, and particle is assembled again, and water smoke condenses on a cellular water trap again.The water carrying impurity particle flows to drainage arrangement along bottom, is discharged by self-draining arrangement.In compressed air more than 95% water droplet, fluid and bulky grain by the first filter core filtering, the compressed air after the first order is filtered enters second level filter core.When compressed air is by the fibrous filter net of the second level made by special cotton, thousands of micro cyclones can be produced, compressed air will be accelerated decades of times simultaneously, vortex core is just as cyclone, form vacuum state, filter in the first order be not again vaporized by the water droplet of filtering, change, filtering, meanwhile, the little particle to 0.02um is also removed completely by second level filter screen.Reach dustless, rustless through double-filtration, without oil, without clean, the dry compressed air of water droplet, ensure that carbon molecular sieve normally runs, prolongation carbon molecular sieve service life.
The effect of carbon molecular sieve 8: with high quality carbon molecular sieve (CMS) for adsorbent, under employing normal temperature, pressure-variable adsorption principle (PSA) is separated air and produces highly purified nitrogen.Oxygen, nitrogen two kinds of gas molecules diffusion rate on molecular sieve surface is different, gas molecule (O2) diffusion rate that diameter is less is very fast, more enters carbon molecular sieve micropore, and gas molecule (N2) diffusion rate that diameter is larger is comparatively slow, enters carbon molecular sieve micropore less.Utilize carbon molecular sieve to this adsorption selection sex differernce of nitrogen and oxygen, cause in the short time that oxygen is in Adsorption Phase enrichment, nitrogen is in the enrichment of gas phase, and oxygen nitrogen like this is separated, and obtains gas phase enrichment thing nitrogen under PSA condition.
To the plastic rubber material 4 of removal moisture drying be needed by putting into sealer charging basket 1, the temperature of adjustment sealer charging basket 1 be toasted, and is evaporated by the moisture that plastic rubber material 4 comprises.With compressed-air filter 5, the water in air, oil, dust etc. are filtered simultaneously, air after filtering is sent into carbon molecular sieve 8, oxygen is wherein separated discharge with water, obtain very dry pure nitrogen and be transported to sealer charging basket endlessly, then heating nitrogen inputs into sealer charging basket 1 again, water adsorption in bucket, on the nitrogen of drying, is discharged from moisture outlet 3.
Sealer charging basket 1 arranges heated air circulation device 17, and the output of heated air circulation device 17 is connected with air blast 14.What nitrogen continued is admitted to sealer charging basket 1, and the nitrogen of part can be discharged outward, and under the effect of hot air circulation motor, nitrogen is transferred into air blast 14, and it is sent to heater 16 by air blast 14 again, sends into material barrel 1, recycle after heating.Heater 16 often adopts heat-generating pipe, and can destroy relevant device in order to avoid impurity such as incidental dusts when this part nitrogen is discharged, therefore in heated air circulation device 17, arranges a filter.
Between compressed-air filter 5 and air blast 14, be provided with air inlet electromagnetic valve 6, cylinder body, nitrogen reflux device 12 and check valve 11 that exhaust solenoid valve 7 and two are equipped with carbon molecular sieve and pressure-reducing valve 13.Control service time air inlet electromagnetic valve 6, exhaust solenoid valve 7 and nitrogen reflux device 12 control two carbon molecular sieve cylinder bodies 10 recycle and mutually repair carbon molecular sieve 8.The outlet of carbon molecular sieve cylinder body 10 is plugged into check valve 11, check valve carries out unidirectional pressure-reducing valve 13 of supplying gas, outlet pressure nitrogen outlet pressure being reduced to a certain needs is regulated by pressure-reducing valve 13, outlet pressure is made automatically to keep stable, the exhaust solenoid valve 7 of nitrogen evolution device is provided with silencer 9, for noise reduction.
Above-mentioned embodiment is only the preferred embodiment of the present invention; can not limit the scope of protection of the invention with this, change and the replacement of any unsubstantiality that those skilled in the art does on basis of the present invention all belong to the present invention's scope required for protection.
Claims (10)
1. a nitrogen dehumidifying heat pump, comprise sealer charging basket, described sealer charging basket is provided with automatic material feeding device, moisture outlet, it is characterized in that: also comprise nitrogen gas conveying device, described nitrogen gas conveying device comprises the compressed-air filter be set in turn on conveyance conduit, nitrogen evolution device, air blast and heater, described compressed-air filter is arranged on the arrival end of described conveyance conduit, the output of described compressed-air filter is connected with described nitrogen evolution device, the output of described nitrogen evolution device is connected with described air blast, the port of export of described conveyance conduit is connected with described sealer charging basket, conveyance conduit part between described air blast and described sealer charging basket is provided with described heater.
2. nitrogen dehumidifying heat pump as claimed in claim 1, it is characterized in that: also comprise heated air circulation device, described heated air circulation device is connected with described sealer charging basket, and the output of described heated air circulation device is connected with described air blast.
3. nitrogen dehumidifying heat pump as claimed in claim 2, is characterized in that: be provided with filter in described heated air circulation device.
4. nitrogen dehumidifying heat pump as claimed in claim 1, is characterized in that: described heater is heating tube.
5. nitrogen dehumidifying heat pump as claimed in claim 1, it is characterized in that: the air inlet of described nitrogen evolution device is provided with air inlet electromagnetic valve, described nitrogen evolution device exhaust outlet is provided with exhaust solenoid valve, is provided with pressure-reducing valve between described nitrogen evolution device and described air blast; Check valve is provided with between described nitrogen evolution device and described pressure-reducing valve.
6. nitrogen dehumidifying heat pump as claimed in claim 1, is characterized in that: described nitrogen evolution device is provided with nitrogen reflux device.
7. the nitrogen dehumidifying heat pump as described in any one of claim 1-6, is characterized in that: the exhaust outlet of described nitrogen evolution device is provided with silencer.
8. a removal moisture drying method for plastic rubber material, comprises the following steps:
S1, will need the plastic rubber material of removal moisture drying by putting into sealer charging basket, and the temperature of adjustment sealer charging basket is toasted, and the moisture comprised by plastic rubber material is evaporated;
Water in air, oil, dust etc. are filtered with compressed-air filter by S2;
S3, sends into nitrogen evolution device through filtered air, oxygen is wherein separated discharge with water, obtains dry pure nitrogen;
S4, heats nitrogen, is then inputted into sealer charging basket;
S5, on the moisture of nitrogen adsorption in sealer charging basket, discharges.
9. the removal moisture drying method of plastic rubber material as claimed in claim 8, further comprising the steps of:
S6, the nitrogen of the incomplete adsorption moisture of the part in sealer charging basket is discharged;
S7, inputs in sealer charging basket after being reheated by the nitrogen of discharge again.
10. the removal moisture drying method of plastic rubber material as claimed in claim 9, comprises the following steps between described step S6 to S7:
S8, filters, by the impurity filtering in nitrogen the nitrogen of discharging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510332216.2A CN104896883A (en) | 2015-06-16 | 2015-06-16 | Nitrogen dehumidification dryer and dehumidification drying method of plastic material |
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| CN201510332216.2A CN104896883A (en) | 2015-06-16 | 2015-06-16 | Nitrogen dehumidification dryer and dehumidification drying method of plastic material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152844A (en) * | 2017-07-04 | 2017-09-12 | 江西升华新材料有限公司 | Drying machine and material handling system |
| CN107866138A (en) * | 2017-12-14 | 2018-04-03 | 无锡市尚德干燥设备有限公司 | Anaerobic formula nitrogen drying machine |
| CN108375285A (en) * | 2018-02-10 | 2018-08-07 | 安徽唯诗杨信息科技有限公司 | A kind of lithium-ion-power cell drying device and drying means |
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| CN201848938U (en) * | 2010-11-01 | 2011-06-01 | 深圳市首熙机械设备有限公司 | Plastic dehumidifying and drying machine employing nitrogen |
| JP2012086392A (en) * | 2010-10-15 | 2012-05-10 | Nakamura Kagakukogyo Co Ltd | Drying method and device for granular plastic material, and hopper dryer for the drying device |
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Patent Citations (7)
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| CN101869797A (en) * | 2010-07-30 | 2010-10-27 | 上海穗杉实业有限公司 | Method and apparatus for extracting high-purity nitrogen from air |
| JP2012086392A (en) * | 2010-10-15 | 2012-05-10 | Nakamura Kagakukogyo Co Ltd | Drying method and device for granular plastic material, and hopper dryer for the drying device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152844A (en) * | 2017-07-04 | 2017-09-12 | 江西升华新材料有限公司 | Drying machine and material handling system |
| CN107866138A (en) * | 2017-12-14 | 2018-04-03 | 无锡市尚德干燥设备有限公司 | Anaerobic formula nitrogen drying machine |
| CN108375285A (en) * | 2018-02-10 | 2018-08-07 | 安徽唯诗杨信息科技有限公司 | A kind of lithium-ion-power cell drying device and drying means |
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Application publication date: 20150909 |
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