CN103759506A - Novel vacuum adsorption drying technique - Google Patents
Novel vacuum adsorption drying technique Download PDFInfo
- Publication number
- CN103759506A CN103759506A CN201410020435.2A CN201410020435A CN103759506A CN 103759506 A CN103759506 A CN 103759506A CN 201410020435 A CN201410020435 A CN 201410020435A CN 103759506 A CN103759506 A CN 103759506A
- Authority
- CN
- China
- Prior art keywords
- adsorption
- drying
- adsorbent
- novel evacuated
- vacuum
- 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.)
- Pending
Links
Abstract
The invention relates to a drying technique, in particular to a novel vacuum adsorption drying technique. The technical scheme includes that an object to be dried is subjected to an evaporating treatment step which is performed in a vacuum drying system, and moisture is discharged at the same time; the moisture is subjected to an adsorption treatment step which is performed in an adsorption tank, a great deal of absorbed waste heat is released, and dry gas is discharged; the dry gas is subjected to a backflow step and flows back to the vacuum drying system; an adsorbent used in continuous circulation in the adsorption tank is subjected to a regeneration treatment step. The adsorbent adopted in the technique is an efficient adsorbent which can still maintain in high adsorption capacity under the vacuum low-pressure state, so that adsorption drying process under the vacuum state is effectively realized. By the vacuum adsorption drying technique, drying power is greatly improved as compared to singular vacuum drying and adsorption drying, drying quality of products can be greatly improved, and drying efficiency can be improved.
Description
Technical field
The present invention and a kind of dry technology, relate in particular to a kind of novel evacuated adsorption dry technology.
Background technology
Dry as one of many industrial important process, directly have influence on the performance of product, form, the energy consumption of quality and process etc.In medicine and chemical industry, drying process is having irreplaceable effect.The difference of drying mode makes drying equipment and dry products all exist greatest differences, general dry technology adopts heating conventionally, cooling, and decompression or other energy transfer modes make material hygroscopic water produce volatilization, condensation, the covert process such as distillation and feed separation reach the object of drying.According to the difference of operating pressure, dry type can be divided into vacuum drying and constant pressure and dry, relatively constant pressure and dry, the advantages such as it is low that vacuum drying has baking temperature, and drying efficiency is high, and cost of investment is little, based on these advantages, vacuum drying has been widely used and food and medicine industry.Adsorption dry is as a kind of ancient drying mode, because its compact conformation, equipment is simple, and energy consumption is low, and the advantage that can carry out depth drying, has also been widely used in dry industry.The present invention is based on adsorption dry and vacuum drying and a kind of novel dry technology of developing, it is novel evacuated adsorption dry technology, compared with original single vacuum drying and adsorption dry, novel evacuated adsorption dry technology is produced in serialization, in drying efficiency and product quality, there is very large lifting, and guaranteed the dry of many kinds, gathered the advantage of vacuum drying and adsorption dry.
Summary of the invention
The technical problem to be solved in the present invention is: for improving product quality, reduce energy consumption, raise the efficiency, reduce costs, and guarantee serialization production, a kind of novel evacuated adsorption dry technology is provided.
In order to overcome the defect existing in background technology, the technical solution adopted for the present invention to solve the technical problems is: a kind of novel evacuated adsorption dry technology comprises carries out evaporation process step by thing to be dried, described evaporation process step is carried out in vacuum drying system, discharges humid gas simultaneously; Described humid gas is carried out to adsorption treatment step, and described adsorption treatment step is carried out in adsorption tanks, discharges a large amount of absorption waste heats simultaneously and discharges dry gas; Dry gas is carried out to reflow step, described dry gas is back in vacuum drying system; The adsorbent that continuous circulation in adsorption tanks the is used treatment step of regenerating.
According to another embodiment of the invention, further comprise that described adsorbent reactivation step is by the air of 200 ~ 350 ℃, the adsorbent of continuous circulation use to be processed, and discharges the waste gas of 110 ~ 180 ℃ simultaneously.
According to another embodiment of the invention, further comprise that the described air of 200 ~ 350 ℃ heats by heater.
According to another embodiment of the invention, further comprise that the absorption waste heat discharging in described humid gas adsorption step carries out preheating to air, produces preheated air, and preheated air is delivered to heater.
According to another embodiment of the invention, further comprise that the described waste gas of 110 ~ 180 ℃ is back to heater by heat exchanger.
According to another embodiment of the invention, further comprise that described heat exchanger carries out preheating to air, produces preheated air, and preheated air is delivered to heater.
According to another embodiment of the invention, further comprise that described adsorbent is a kind of high-efficiency adsorbent that still can keep high absorption capacity under vacuum low-pressure state.
According to another embodiment of the invention, further comprise that described vacuum low-pressure state is 10 ~ 30mbar.
According to another embodiment of the invention, further comprise that described high-efficiency adsorbent is zeolite molecular sieve.
The invention has the beneficial effects as follows: the present invention is based on adsorption dry and vacuum drying and a kind of novel dry technology of developing, it is novel evacuated adsorption dry technology, compared with original single vacuum drying and adsorption dry, novel evacuated adsorption dry technology is produced in serialization, in drying efficiency and product quality, there is very large lifting, and guaranteed the dry of many kinds, gathered the advantage of vacuum drying and adsorption dry.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the flow chart of novel evacuated adsorption dry technology of the present invention.
The specific embodiment
This novel evacuated adsorption dry technology comprises:
The first step is carried out evaporation process step by thing to be dried, and described evaporation process step is carried out in vacuum drying system, discharges humid gas simultaneously;
Second step carries out adsorption treatment step to described humid gas, and described adsorption treatment step is carried out in adsorption tanks, discharges a large amount of absorption waste heats simultaneously and discharges dry gas; The absorption waste heat discharging in humid gas adsorption step carries out preheating to air, produces preheated air, and preheated air is delivered to heater.
The 3rd step is carried out reflow step to dry gas, and described dry gas is back in vacuum drying system;
The adsorbent that the 4th step is used continuous circulation in the adsorption tanks treatment step of regenerating.Adsorbent reactivation step is by the air of 200 ~ 350 ℃, the adsorbent of continuous circulation use to be processed, and discharges the waste gas of 110 ~ 180 ℃ simultaneously.The air of 200 ~ 350 ℃ heats by heater.The waste gas of 110 ~ 180 ℃ is back to heater by heat exchanger.Heat exchanger carries out preheating to air, produces preheated air, and preheated air is delivered to heater.
Adsorbent is a kind of high-efficiency adsorbent that still can keep high absorption capacity under vacuum low-pressure state.Vacuum low-pressure state is 10 ~ 30mbar.High-efficiency adsorbent is zeolite molecular sieve.
Implementation column:
As shown in Figure 1, thing to be dried is carried out to evaporation process step, described evaporation process step is carried out in vacuum drying system, and the steam that evaporation produces makes generation humid gas in system, described humid gas is carried out to adsorption treatment step, and described adsorption treatment step is carried out in adsorption tanks, and after adsorption process finishes, the most of moisture in humid gas is adsorbed agent absorption, discharges a large amount of absorption waste heats simultaneously, discharges dry gas, dry gas is carried out to reflow step, described dry gas is back in vacuum drying system, the adsorbent that continuous circulation in adsorption tanks the is used treatment step of regenerating, absorption waste heat in this step described in portion of air utilization carries out preheating, another part air utilizes the waste gas of 110 ~ 180 ℃ to carry out gas preheating, and the secondary waste gas of the air being preheated and 110 ~ 180 ℃ is together inputted to the air that heater produces 200 ~ 350 ℃, the air of 200 ~ 350 ℃ is used for making adsorbent to realize regeneration, the waste gas of 110 ~ 180 ℃ flowing out is as the thermal source preheated air of air preheat, after preheating finishes, the secondary waste gas of 110 ~ 180 ℃ enters heater again, carry out next adsorbent reactivation circulation.Described adsorbent is a kind ofly under the vacuum low-pressure state of 10 ~ 30mbar, still can keep the zeolite molecular sieve of high absorption capacity.The humidity of whole vacuum drying system system under such ringing declines to a great extent, and the dry power of system is increased.
Claims (9)
1. a novel evacuated adsorption dry technology, is characterized in that, this technology comprises:
The first step is carried out evaporation process step by thing to be dried, and described evaporation process step is carried out in vacuum drying system, discharges humid gas simultaneously;
Second step carries out adsorption treatment step to described humid gas, and described adsorption treatment step is carried out in adsorption tanks, discharges a large amount of absorption waste heats simultaneously and discharges dry gas;
The 3rd step is carried out reflow step to dry gas, and described dry gas is back in vacuum drying system;
The adsorbent that the 4th step is used continuous circulation in the adsorption tanks treatment step of regenerating.
2. novel evacuated adsorption dry technology as claimed in claim 1, is characterized in that: described adsorbent reactivation step is by the air of 200 ~ 350 ℃, the adsorbent of continuous circulation use to be processed, and discharges the waste gas of 110 ~ 180 ℃ simultaneously.
3. novel evacuated adsorption dry technology as claimed in claim 2, is characterized in that: the described air of 200 ~ 350 ℃ heats by heater.
4. novel evacuated adsorption dry technology as claimed in claim 2, is characterized in that: the described waste gas of 110 ~ 180 ℃ is back to heater by heat exchanger.
5. novel evacuated adsorption dry technology as claimed in claim 4, is characterized in that: described heat exchanger carries out preheating to air, produces preheated air, and preheated air is delivered to heater.
6. novel evacuated adsorption dry technology as claimed in claim 1, is characterized in that: the absorption waste heat discharging in described humid gas adsorption step carries out preheating to air, produces preheated air, and preheated air is delivered to heater.
7. novel evacuated adsorption dry technology as claimed in claim 1, is characterized in that: described adsorbent is a kind of high-efficiency adsorbent that still can keep high absorption capacity under vacuum low-pressure state.
8. novel evacuated adsorption dry technology as claimed in claim 7, is characterized in that: described vacuum low-pressure state is 10 ~ 30mbar.
9. novel evacuated adsorption dry technology as claimed in claim 7, is characterized in that: described high-efficiency adsorbent is zeolite molecular sieve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410020435.2A CN103759506A (en) | 2014-01-17 | 2014-01-17 | Novel vacuum adsorption drying technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410020435.2A CN103759506A (en) | 2014-01-17 | 2014-01-17 | Novel vacuum adsorption drying technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103759506A true CN103759506A (en) | 2014-04-30 |
Family
ID=50526782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410020435.2A Pending CN103759506A (en) | 2014-01-17 | 2014-01-17 | Novel vacuum adsorption drying technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103759506A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11116230B2 (en) | 2019-07-26 | 2021-09-14 | Sdic Zhonglu Fruit Juice Co., Ltd. | Technology for three-dimensional microwave air-jet drying of persimmon slices |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01199627A (en) * | 1988-02-02 | 1989-08-11 | Mitsubishi Heavy Ind Ltd | Dehumidification method |
| JP2004077077A (en) * | 2002-08-21 | 2004-03-11 | Shoji Ikeda | Vacuum dryer |
| CN2822750Y (en) * | 2005-09-05 | 2006-10-04 | 中国船舶重工集团公司第七○四研究所 | Adsorption vacuum-sucking regeneration drying structure |
| CN201179409Y (en) * | 2008-01-09 | 2009-01-14 | 简松荣 | Vacuum adsorption type drying system |
| TW200930965A (en) * | 2008-01-09 | 2009-07-16 | Sung-Jung Chien | Vacuum absorption drying system and method |
| JP2010203639A (en) * | 2009-03-02 | 2010-09-16 | Matsui Mfg Co | Dehumidification dryer for powder and granular material and method of dehumidifying and drying powder and granular material |
| CN102049239A (en) * | 2010-12-07 | 2011-05-11 | 浙江大学 | Nitrogen oxide adsorbent prepared through ion exchange modification of natural zeolite |
| CN102342565A (en) * | 2011-09-28 | 2012-02-08 | 福建农林大学 | Combined drying method |
| CN102706111A (en) * | 2012-06-15 | 2012-10-03 | 广州市合诚化学有限公司 | Energy-saving drying machine and energy-saving drying method |
| CN203235401U (en) * | 2013-04-23 | 2013-10-16 | 艾沃尔(漳州)机械有限公司 | Negative pressure vacuum absorption drying machine |
-
2014
- 2014-01-17 CN CN201410020435.2A patent/CN103759506A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01199627A (en) * | 1988-02-02 | 1989-08-11 | Mitsubishi Heavy Ind Ltd | Dehumidification method |
| JP2004077077A (en) * | 2002-08-21 | 2004-03-11 | Shoji Ikeda | Vacuum dryer |
| CN2822750Y (en) * | 2005-09-05 | 2006-10-04 | 中国船舶重工集团公司第七○四研究所 | Adsorption vacuum-sucking regeneration drying structure |
| CN201179409Y (en) * | 2008-01-09 | 2009-01-14 | 简松荣 | Vacuum adsorption type drying system |
| TW200930965A (en) * | 2008-01-09 | 2009-07-16 | Sung-Jung Chien | Vacuum absorption drying system and method |
| JP2010203639A (en) * | 2009-03-02 | 2010-09-16 | Matsui Mfg Co | Dehumidification dryer for powder and granular material and method of dehumidifying and drying powder and granular material |
| CN102049239A (en) * | 2010-12-07 | 2011-05-11 | 浙江大学 | Nitrogen oxide adsorbent prepared through ion exchange modification of natural zeolite |
| CN102342565A (en) * | 2011-09-28 | 2012-02-08 | 福建农林大学 | Combined drying method |
| CN102706111A (en) * | 2012-06-15 | 2012-10-03 | 广州市合诚化学有限公司 | Energy-saving drying machine and energy-saving drying method |
| CN203235401U (en) * | 2013-04-23 | 2013-10-16 | 艾沃尔(漳州)机械有限公司 | Negative pressure vacuum absorption drying machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11116230B2 (en) | 2019-07-26 | 2021-09-14 | Sdic Zhonglu Fruit Juice Co., Ltd. | Technology for three-dimensional microwave air-jet drying of persimmon slices |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102212419B (en) | Perfume drying device and essential oil recycling method | |
| CN104888481B (en) | Energy-saving spray-drying installation based on heat pump of recovering residual heat technology | |
| CN104236283B (en) | A kind of heat pump drying device | |
| CN107596706B (en) | Steam condensation evaporation technology and device | |
| CN203928615U (en) | A kind of heated-air circulation oven | |
| CN102109275A (en) | method and equipment for directly drying based on vapor mechanical recompression | |
| CN203507564U (en) | Equipment for evaporating and concentrating compound donkey-hide gelatin slurry extracting solution | |
| CN204854181U (en) | Drying device is united to dehumidification microwave | |
| CN204034505U (en) | A kind of shell-and-tube organic waste gas purifying processing device | |
| CN203315983U (en) | Adsorption type drying machine for air thermal-energy negative-pressure regenerated compressed air | |
| CN103759506A (en) | Novel vacuum adsorption drying technique | |
| CN103272454A (en) | Organic exhaust gas treatment method and apparatus | |
| CN103406002A (en) | Dehumidification device and dehumidification method for normal-temperature regeneration pressurizing solution | |
| CN203454674U (en) | Heat pump drying device | |
| CN104119215A (en) | Molecular sieve regeneration method in acetone continuous dehydration production process | |
| CN204301412U (en) | A kind of rapid draing fluid bed | |
| CN204932926U (en) | A kind of zero-emission evaporation crystallization equipment | |
| CN206347667U (en) | A kind of rotary wheel dehumidifying heat reclamation device | |
| CN203899183U (en) | Double-effect three-body energy-saving type MVR evaporating device | |
| CN211734149U (en) | Sludge low-temperature dehumidifying dryer | |
| RU2300718C1 (en) | Arrangement for low-temperature dewatering materials in vacuum | |
| KR101466059B1 (en) | air dryer recycling apparatus using compressor waste heat | |
| CN102838180A (en) | Rare metal wastewater zero discharge process | |
| CN110818222A (en) | Sludge low-temperature dehumidifying dryer | |
| CN203507785U (en) | Drying device of compressed air |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140430 |