CN204254983U - A kind of vacuum rotary drying device - Google Patents
A kind of vacuum rotary drying device Download PDFInfo
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- CN204254983U CN204254983U CN201420679513.5U CN201420679513U CN204254983U CN 204254983 U CN204254983 U CN 204254983U CN 201420679513 U CN201420679513 U CN 201420679513U CN 204254983 U CN204254983 U CN 204254983U
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- drying
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Abstract
The utility model relates to a kind of vacuum rotary drying device, device comprises bearing, drying chamber, condenser, vacuum system, drying chamber arranges charging aperture, raw material puts into drying chamber in charging aperture, drying chamber activity be arranged on bearing, drying chamber can be that fulcrum rotates with bearing, condenser is communicated with drying chamber by exhaust tube, one end of exhaust tube is inserted in drying chamber, vacuum system is connected with condenser, the tank skin of drying chamber is sandwich, steam is passed in interlayer, drying chamber also arranges steam input pipe, condensed water outlet pipe, steam input pipe is communicated with drying chamber chuck, steam enters drying chamber interlayer by steam input pipe, steam condensate is discharged by condensed water outlet pipe.The utility model can remove the moisture content on raw material surface fast, and product quality is high, and labour intensity is low.
Description
Technical field
The utility model relates to a kind of drying device, especially relates to a kind of drying equipment and method thereof of dry Pyromellitic Acid.
Background technology
Pyromellitic Acid produces mainly through the oxidation of raw material durol, hydrolysis, drying section.In examination and test of products process, require that product moisture state modulator is less than less than 0.4%.In actual production process, moisture is an index the most rambunctious.Wherein, the factor mainly drying section technique of water parameters is affected.Up to the present, conventional drying process has two kinds: one to be that pneumatic conveying drying (flash distillation) utilizes swiftly flowing hot-air usually at home, makes raw material be suspended in air, under Geldart-D particle state, completes dry run; Two is come dry with prevailing baking oven, and mainly raw material is placed in pallet, by Steam Heating, an exhaust blower is installed on top, and moisture is taken out outward, thus reaches dry.But these two kinds of methods have weak point, the dry product moisture out of first method is not steady, mainly because hydrolysis workshop section divides impossible the same by the raw aqueous that every desk centrifuge throws away, thus be difficult to regulate inlet amount to change product moisture out by pneumatic conveying drying hot-air, make moisture have height to have low; And second method is a kind of method the most common, be also the method that most of manufacturing enterprise adopts, but the time of drying is longer, general needs more than 10 hours, product also easily lumps, and also will increase a disintegrating machine and carry out fragmentation, greatly waste energy and manpower.
Utility model content
Technical problem to be solved in the utility model changes moisture in Pyromellitic Acid dry run steadily not affect product quality problem, and the technical scheme realizing above-mentioned purpose is as follows:
A kind of vacuum rotary drying device, comprise condenser system, it is characterized in that: also comprise bearing, drying chamber, condenser, vacuum system, motor, motor is electrically connected with drying chamber, drying chamber arranges charging aperture, raw material puts into drying chamber in charging aperture, drying chamber activity be arranged on bearing, drying chamber can be that fulcrum rotates with bearing, condenser is communicated with drying chamber by exhaust tube, and one end of exhaust tube is inserted in drying chamber, and vacuum system is connected with condenser, the air in vacuum system absorption dehydration tank or steam; The tank skin of drying chamber is sandwich, steam or conduction oil is passed in interlayer, steam input pipe is communicated with drying chamber interlayer, steam enters drying chamber interlayer by steam input pipe, condensed water outlet pipe one end is also communicated with interlayer simultaneously, the other end is connected with condenser system, and steam condensate enters condenser system after being discharged by condensed water outlet pipe.
Preferably, described drying chamber is bicone structure, and described bicone structure comprises the upper and lower frustum of a cone, cylindrical shell, and upper and lower circular cone structure is symmetrical, and the upper and lower end face of cylindrical shell is connected respectively the upper and lower frustum of a cone, makes drying chamber form an airtight container.
Preferably, filter is provided with in drying chamber.
Preferably, also comprise surge tank, described surge tank is connected between condenser and vacuum system.
Preferably, the exhaust tube between drying chamber and condenser is arranged Pressure gauge and atmospheric valve.
Preferably, the outer surface of drying chamber is provided with heat-insulation layer.
Preferably, filter is set with filter bag.
Preferably, condensed water outlet pipe, steam input pipe arrange valve respectively.
Preferably, described vacuum system is vavuum pump.
The using method of vacuum rotary drying device, is characterized in that:
First raw material is added from charging aperture, close charging aperture afterwards, open condensed water outlet pipe valve, slowly open steam input pipe valve, open vavuum pump, slowly close atmospheric valve, observe Pressure gauge, when arriving 0.05-0.09MPa etc. vacuum, start vacuum drying press button, slowly regulate the speed of rotation, drying chamber is rotated, prevent raw material from luming, inject the Steam Heating drying chamber of drying chamber interlayer, make drying chamber internal temperature reach 120 DEG C;
To keep dry temperature in tank between 100-120 DEG C, between vacuum 0.05-0.09MPa, and the moisture content on raw material surface reaches capacity state and evaporating, and is discharged in time by vavuum pump;
During discharging, first stop the rotation of drying chamber, make discharging opening vertically downward, open atmospheric valve pressure release, close vavuum pump, wait for that in drying chamber, pressure is in normal pressure, last steam off input pipe valve, opens outlet valve and carries out blowing packaging.
Drying equipment of the present utility model can ensure that product moisture is by rapid evaporation, improves the quality of product, reduces labor intensity of operating staff simultaneously, improve production efficiency greatly.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model drying technology process figure
Accompanying drawing 2 is the utility model device schematic diagram
Figure number illustrates: bearing 1, drying chamber 2, condenser 3, vavuum pump 4, surge tank 5, exhaust tube 6, steam input pipe 7, condensed water outlet pipe 8, heat-insulation layer 9, filter 10, Pressure gauge 11, atmospheric valve 12,
Detailed description of the invention
Below in conjunction with embodiment, the utility model is described in detail.
In Fig. 1, drying device, comprise condenser system (not shown), bearing 1, drying chamber 2, condenser 3, vacuum system, surge tank 5, drying chamber arranges charging aperture, raw material puts into drying chamber in charging aperture, the preferred vavuum pump 4 of vacuum system, drying chamber 2 activity be arranged on bearing 1, drying chamber 2 can be that fulcrum carries out rocking or rotating with bearing, and the object of rotation prevents raw material from luming.Also comprise the power source driving drying chamber to rotate, preferred power source is motor, in order to save space, motor can be arranged in bearing, and motor is electrically connected with drying chamber, driven by motor drying chamber rotates, bearing can arrange vacuum drying shift knob, adjuster, and vacuum drying shift knob, adjuster are arranged on bearing, by switch control rule drying chamber, as for how driving drying chamber to rotate, use prior art.
The concrete structure of the parts such as description undersetting, drying chamber of lower mask body and annexation thereof.
Drying chamber 2 is bicone structure, described bicone structure comprises frustum of a cone 2-1, lower frustum of a cone 2-2, cylindrical shell 2-5, and upper and lower circular cone structure is symmetrical, the large end of the upper and lower frustum of a cone is connected to the two ends of cylindrical shell 2-5, makes drying chamber form an airtight container, charging aperture 2-3 can be arranged in the bottom of upper/lower cone, discharging opening 2-4, charging aperture or discharging opening correspondingly respectively can arrange imported valve or outlet valve, facilitate blowing and feeding.The tank skin of drying chamber is interlayer 2-6 structure, steam or conduction oil is passed in interlayer 2-6, exhaust tube 6 between drying chamber 2 and condenser 3 is arranged Pressure gauge 11 and atmospheric valve 12, Pressure gauge 11 is for checking the pressure and temperature in drying chamber, atmospheric valve 12 is for pressure release, vacuum can also be regulated to use when starting vavuum pump simultaneously, in order to be incubated, the outer surface of drying chamber or inner surface are provided with heat-insulation layer 9, it is dry critical components that exhaust tube 6 front end of drying chamber inside arranges filter 10 filter 10, require before using to overlap the fine and closely woven filter bag of last layer on the filter, raw material is prevented to be drawn out of, also require to want outwash filter sock before each feeding in raw material, ensure that filter does not block up.
The conveniently rotation of drying chamber, can arrange swivel joint at bearing and drying chamber junction.
Condenser 2 is communicated with drying chamber 2 by exhaust tube 6, and one end of exhaust tube 6 is inserted in drying chamber 2, exhaust tube 6 and drying chamber junction arrange sealing ring, in order to save space, exhaust tube can through being communicated with drying chamber in bearing, vavuum pump 4 is connected with condenser 3, by the air in vavuum pump absorption dehydration tank or steam, air in condenser 2 self-desiccation tank in future or steam cool further, drying chamber also arranges steam input pipe 7, condensed water outlet pipe 8, steam input pipe 7, condensed water outlet pipe 8 one end is communicated with drying chamber interlayer 2-6, the steam input pipe other end is communicated with jet chimney, steam enters in interlayer by steam input pipe, the condensed water outlet pipe other end is connected with condenser system, steam condensate enters condenser system after being discharged by condensed water outlet pipe to carry out reclaiming or recycling, steam input pipe mainly passes in interlayer and provides heat to drying chamber, Steam Heating in interlayer is discharged from condensed water outlet pipe after becoming condensed water (i.e. steam condensate).Surge tank 5 is set between condenser and vavuum pump, the effect of surge tank is compensator or trimmer pressure, for gas-liquid separation to reach stable vacuum, raw material leans on the rotation of drying chamber in drying chamber, continuous rolling raw material, do not allow raw material lump, thus after the heat absorption of the raw material of humidity, the steam of evaporation is extracted out outside cylinder by vacuum system (pump), thus reach the drying of raw material.
The utility model is adopted new technology, select a kind of bipyramid vacuum rotary drying, it is a kind of intermittent operation device, by being heated by steam or conduction oil in chuck, under certain vacuum degree and uniform temperature condition, raw material leans on the rotation of stack shell in vacuum circular cone, continuous rolling raw material, do not allow raw material lump, after wet feed material heat absorption, the steam of evaporation is extracted out outside tank by vacuum system (pump), thus reaches the drying of raw material.Will note the filter of drying chamber inside in operation with this drying means, the filter bag in filter requires not only fine and closely woven, can't block.Because pulverous Pyromellitic Acid easily adsorbs on the filter in each production, if blocking filter, moisture is just not easy to extract out, thus affects the quality of product, so must clear up filter with brush before often adding primary material.
Embodiment 1:
For the process using the drying chamber of volume 1000L to produce Pyromellitic Acid product,
Whether first checked filter is clean, and Pyromellitic Acid product 500kg being hydrolyzed workshop section's water content adds from charge door, closes charging aperture;
Then open condensed water outlet pipe valve, open steam input pipe valve slowly, drive vavuum pump, slowly close atmospheric valve, etc. vacuum arrival-0.09MPa time start vacuum drying button, slowly regulate the speed of rotation, require to run with 6r/min rotating speed.Raw material reaches about 120 DEG C, in vacuum-0.09MPa situation in temperature, the moisture content on raw material surface reaches capacity state and evaporating, and discharged in time by the drive of exhaust tube by vavuum pump, the moisture content of raw material inside is constantly to surface penetration, evaporation, discharge, three processes are constantly carried out, and the raw material of each process reaches drying purpose within very short time (0.5-2 hour).Will note observing vacuum whether in claimed range in dry run, the heating temperatures of drying chamber is after uniform temperature, and along with the prolongation of working time, temperature should be decline to some extent.General 3 hours that work get final product discharging, first stop the rotation of drying chamber, require that discharging opening stops vertically downward during discharging.Open atmospheric valve pressure release, close vavuum pump, wait for that in drying chamber, pressure is in normal pressure, the valve of last steam off input pipe, the outlet valve opening discharging opening carries out blowing packaging.
These are only the preferred embodiment of the utility model embodiment; not in order to limit the utility model embodiment; within all spirit in the utility model embodiment and principle; any amendment of doing, equivalent replacement, improvement etc., all should be included in the protection domain of the utility model embodiment.
Claims (9)
1. a vacuum rotary drying device, comprise condenser system, it is characterized in that: also comprise bearing, drying chamber, condenser, vacuum system, motor, motor is electrically connected with drying chamber, drying chamber arranges charging aperture, raw material puts into drying chamber in charging aperture, drying chamber activity be arranged on bearing, drying chamber can be that fulcrum rotates with bearing, condenser is communicated with drying chamber by exhaust tube, and one end of exhaust tube is inserted in drying chamber, and vacuum system is connected with condenser, the air in vacuum system absorption dehydration tank or steam; The tank skin of drying chamber is sandwich, steam or conduction oil is passed in interlayer, steam input pipe is communicated with drying chamber interlayer, steam enters drying chamber interlayer by steam input pipe, condensed water outlet pipe one end is also communicated with interlayer simultaneously, the other end is connected with condenser system, and steam condensate is discharged by condensed water outlet pipe and entered rear condenser system.
2. vacuum rotary drying device according to claim 1, it is characterized in that: described drying chamber is bicone structure, described bicone structure comprises the upper and lower frustum of a cone, cylindrical shell, and upper and lower circular cone structure is symmetrical, the upper and lower end face of cylindrical shell is connected respectively the upper and lower frustum of a cone, makes drying chamber form an airtight container.
3. vacuum rotary drying device according to claim 1, is characterized in that: be provided with filter in drying chamber.
4. vacuum rotary drying device according to claim 1, is characterized in that: also comprise surge tank, and described surge tank is connected between condenser and vacuum system.
5. vacuum rotary drying device according to claim 1, is characterized in that: the exhaust tube between drying chamber and condenser is arranged Pressure gauge and atmospheric valve.
6. vacuum rotary drying device according to claim 1, is characterized in that: the outer surface of drying chamber is provided with heat-insulation layer.
7. vacuum rotary drying device according to claim 3, is characterized in that: filter is set with filter bag.
8. vacuum rotary drying device according to claim 1, is characterized in that: condensed water outlet pipe, steam input pipe arrange valve respectively.
9. vacuum rotary drying device according to claim 1, is characterized in that: described vacuum system is vavuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420679513.5U CN204254983U (en) | 2014-11-13 | 2014-11-13 | A kind of vacuum rotary drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420679513.5U CN204254983U (en) | 2014-11-13 | 2014-11-13 | A kind of vacuum rotary drying device |
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| Publication Number | Publication Date |
|---|---|
| CN204254983U true CN204254983U (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420679513.5U Expired - Fee Related CN204254983U (en) | 2014-11-13 | 2014-11-13 | A kind of vacuum rotary drying device |
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| CN (1) | CN204254983U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390431A (en) * | 2014-11-13 | 2015-03-04 | 南京化工职业技术学院 | Vacuum rotary drying device and application method thereof |
| CN112757526A (en) * | 2020-12-29 | 2021-05-07 | 周吉娟 | Chemical fiber raw material drying device |
| CN114440581A (en) * | 2022-04-11 | 2022-05-06 | 东营曜康医药科技有限公司 | Bipyramid drying equipment is used in production of 4-methylthiazole-5-formaldehyde |
-
2014
- 2014-11-13 CN CN201420679513.5U patent/CN204254983U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390431A (en) * | 2014-11-13 | 2015-03-04 | 南京化工职业技术学院 | Vacuum rotary drying device and application method thereof |
| CN112757526A (en) * | 2020-12-29 | 2021-05-07 | 周吉娟 | Chemical fiber raw material drying device |
| CN114440581A (en) * | 2022-04-11 | 2022-05-06 | 东营曜康医药科技有限公司 | Bipyramid drying equipment is used in production of 4-methylthiazole-5-formaldehyde |
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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 |
Granted publication date: 20150408 Termination date: 20151113 |
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| EXPY | Termination of patent right or utility model |