CN1101925C - Fiber dewatering and vacuum drying method - Google Patents
Fiber dewatering and vacuum drying method Download PDFInfo
- Publication number
- CN1101925C CN1101925C CN 99103095 CN99103095A CN1101925C CN 1101925 C CN1101925 C CN 1101925C CN 99103095 CN99103095 CN 99103095 CN 99103095 A CN99103095 A CN 99103095A CN 1101925 C CN1101925 C CN 1101925C
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- vacuum
- heat
- moisture
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- jar
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Abstract
The present invention relates to a fiber dehydrating and vacuum drying method. Wet fiber materials are filled into a porous tray or a porous box, are overlapped on a material vehicle, and are pushed into a vacuum box (can), and doors of the vacuum box (can) are sealed. A heating power supply is switched on, a PTC heater quickly heats heat-transfer oil in constant temperature, and working mediums of heating mediums sense heat conduction oil temperature to make evaporation heat. The fiber dehydrating and vacuum drying method spreads the heat at the equal temperature to the inner parts of the vacuum box (can) through a vacuum heat conducting cavity and a vacuum heat conducting pipe. A power supply of a water ring vacuum pump is started, and the inner part of the vacuum box (can) is in a negative-pressure mode. Moisture which is immersed into the fibers in a physics mode is quickly evaporated into an air phase and is drawn out from the vacuum box (can) by the water ring vacuum pump through an air channel to achieve fiber dehydrating and drying aim. A moisture on-line detector automatically displays the standard moisture of the dried fibers. The present invention has the characteristics of low temperature, fiber quality improvement, high drying rate, uniform dehydration, low drying cost and the simultaneous heating, vacuum pumping and dehydration.
Description
The present invention relates to a kind of fiber dewatering and vacuum drying method, belong to the fiber dewatering technical field of drying.
Existing fiber drying method generally adopts cross-flow drying, and drying medium is a thermal current, exists thermal losses big, and rate of drying is low, the shortcoming that fiber moisture uneven drying is even.Part adopts far-infrared ray drying and dielectric drying, exists power consumption big, the shortcoming that drying cost is high.
The object of the present invention is to provide: making vacuum railway carriage or compartment (jar) with stainless steel is drying receptacle, with porous pallet or porous case is wet fiber material storage tool, with the materials vehicle is the loading and unloading carriers, with the PTC element is heater, with the conduction oil is heat medium, is heat-conduction medium with heating agent working medium, is the heat transfer device with vacuum heat-conduction chamber, vacuum heat-conduction pipe, with the dehumidifier of water ring vacuum pump negative pressure, with a kind of fiber dewatering and vacuum drying method of the automatic display fibers moisture of moisture on-line detector.It is low to have temperature, improves fiber quality, the rate of drying height, and dehydration is even, and drying cost is low, heats, vacuumizes the characteristics that dehydration is carried out simultaneously.
Feature of the present invention is: wet fiber material pack into porous pallet or porous case, pile up on materials vehicle, push in the vacuum railway carriage or compartment (jar), ptc heater fast constant temperature heating conduction oil, heating agent working medium induction conduction oil temperature produces heat of evaporation, vacuum heat-conduction chamber, vacuum heat-conduction pipe isothermal radiation in vacuum railway carriage or compartment (jar), the dehumidifier of water ring vacuum pump negative pressure, wet fiber material physics depends on moisture, escapes into gas phase, be drawn out of outside the vacuum railway carriage or compartment (jar) the automatic display fibers moisture of moisture on-line detector with air.
Concrete grammar of the present invention is described below:
Vacuum railway carriage or compartment (jar) is the stainless steel structure airtight container, and perisporium forms the vacuum heat-conduction chamber, and the vacuum heat-conduction pipe vertically is communicated with vacuum railway carriage or compartment (jar) and goes up lower wall, and vacuum railway carriage or compartment (jar) door is free opening encapsulation door; Porous pallet or porous case are stainless steel stretched punch forming, overall dimensions equivalent truck chassis; Water ring vacuum pump is communicated with through air flue and vacuum railway carriage or compartment (jar); Moisture on-line detector terminal, water ring vacuum pump, ptc heater power supply are drawn by console; PTC element symmetry is arranged above and below, the both sides positive and negative electrode that bonds respectively, insulation board is buckled in the outside, the heater case of packing into, be fixed in the heat conduction fuel tank, be marked with conduction oil in the heat conduction fuel tank, the heat conduction fuel tank is vertically many rows and is fixed in the vaporization chamber, be marked with heating agent working medium in the vaporization chamber, vaporization chamber and vacuum heat-conduction chamber, vacuum heat-conduction pipe are communicated with.Wet fiber material pack into porous pallet or porous case pile up on materials vehicle, push in the vacuum railway carriage or compartment (jar) sealed vacuum railway carriage or compartment (jar) door; Open heating power supply, ptc heater fast constant temperature heating conduction oil, heating agent working medium induction conduction oil temperature produces heat of evaporation, heat of evaporation is with the speed of 80-120cm/S, through the vacuum heat-conduction chamber, vacuum heat-conduction pipe isothermal radiation in vacuum railway carriage or compartment (jar), preheating 40min, the interior temperature in vacuum railway carriage or compartment (jar) reaches 40-70 ℃; Open the water ring vacuum pump power supply, present negative pressure in vacuum railway carriage or compartment (jar), gaseous pressure is low, and fibrous physics depends on the moisture rapid evaporation and escapes into gas phase, is extracted out outside the vacuum railway carriage or compartment (jar) by water ring vacuum pump, reaches the purpose of fiber dewatering drying; The moisture on-line detector shows the standard moisture of the fiber that is dried automatically.
Example of the present invention: heating system, ptc heater rated voltage: 220V, frequency: 50HZ, interior temperature: 40-70 ℃ in vacuum railway carriage or compartment (jar); Vacuum dehumidifier system: water ring vacuum pump rated voltage: 380V, final vacuum: 0.098Mpa dehydrates the cycle: 30min, dry energy cost: 0.01 yuan/Kg.
It is low that the present invention has temperature, improves fiber quality, the rate of drying height, and dehydration is even, and drying cost is low, heats, takes out true The characteristics that empty dehydration is carried out simultaneously.
The present invention is applicable to that hair, fiber crops, silk, cotton, dehydrating with look of chemical fiber dye drying process, is applicable to wooden shavings, Dehydrating after paper pulp fiber, timber, Chinese medicine, medicine materical crude slice drying and flax are soaked and macerate also is suitable for cereal, paddy and cereal flower Dehydrating of the wood drying of seed and vegetables, fruit, food, tealeaves, fresh flower.
Claims (1)
1, a kind of material dewatering vacuum drying method, making vacuum railway carriage or compartment (jar) with stainless steel is drying receptacle, with porous pallet or porous case is wet stock storage tool, with the materials vehicle is the loading and unloading carriers, with the PTC element is heater, with the conduction oil is heat medium, with heating agent working medium is heat-conduction medium, with the vacuum heat-conduction chamber, the vacuum heat-conduction pipe is the heat transfer device, with the dehumidifier of water ring vacuum pump negative pressure, detect material standard moisture with the moisture on-line detector, ptc heater heating conduction oil, heating agent working medium induction conduction oil temperature produces heat of evaporation, the vacuum heat-conduction chamber, the vacuum heat-conduction pipe is isothermal radiation in vacuum railway carriage or compartment (jar), the dehumidifier of water ring vacuum pump negative pressure, the wet fiber material moisture is outside air flue is drawn out of vacuum railway carriage or compartment (jar), the automatic display fibers material moisture of moisture on-line detector is characterized in that above-mentioned material is a fiber, with wet stock pack into porous pallet or porous case, pile up on materials vehicle, push in the vacuum railway carriage or compartment (jar), the time of above-mentioned ptc heater heating conduction oil is 40 minutes, makes the interior temperature in vacuum railway carriage or compartment (jar) remain in 40-70 ℃ the scope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99103095 CN1101925C (en) | 1999-03-23 | 1999-03-23 | Fiber dewatering and vacuum drying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99103095 CN1101925C (en) | 1999-03-23 | 1999-03-23 | Fiber dewatering and vacuum drying method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1234494A CN1234494A (en) | 1999-11-10 |
| CN1101925C true CN1101925C (en) | 2003-02-19 |
Family
ID=5271114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99103095 Expired - Fee Related CN1101925C (en) | 1999-03-23 | 1999-03-23 | Fiber dewatering and vacuum drying method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1101925C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100370205C (en) * | 2006-12-31 | 2008-02-20 | 山东东岳高分子材料有限公司 | Drying method for teflon dispersed resin |
| CN102980377A (en) * | 2012-12-06 | 2013-03-20 | 云南铜业科技发展股份有限公司 | Method for vacuum drying selenium-rich slags |
| CN105823325A (en) * | 2016-03-29 | 2016-08-03 | 华中科技大学 | Compartment-type material platform for baking in vacuum tunnel kiln |
-
1999
- 1999-03-23 CN CN 99103095 patent/CN1101925C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1234494A (en) | 1999-11-10 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |