CN113915958A - Material vacuum drying method and system thereof - Google Patents

Material vacuum drying method and system thereof Download PDF

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Publication number
CN113915958A
CN113915958A CN202111288256.3A CN202111288256A CN113915958A CN 113915958 A CN113915958 A CN 113915958A CN 202111288256 A CN202111288256 A CN 202111288256A CN 113915958 A CN113915958 A CN 113915958A
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CN
China
Prior art keywords
kiln
air
pipe
kiln body
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
Application number
CN202111288256.3A
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Chinese (zh)
Inventor
陈永平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan Huifeng Environmental Protection Equipment Technology Co ltd
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Hunan Huifeng Environmental Protection Equipment Technology Co ltd
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Hunan Huifeng Environmental Protection Equipment Technology Co ltd filed Critical Hunan Huifeng Environmental Protection Equipment Technology Co ltd
Priority to CN202111288256.3A priority Critical patent/CN113915958A/en
Publication of CN113915958A publication Critical patent/CN113915958A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/06—Chambers, containers, or receptacles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
    • F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28B—STEAM OR VAPOUR CONDENSERS
    • F28B9/00—Auxiliary systems, arrangements, or devices
    • F28B9/08—Auxiliary systems, arrangements, or devices for collecting and removing condensate

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

The invention provides a material vacuum drying method, which comprises the following steps: firstly, feeding materials into a vacuum kiln through a material frame, and closing a kiln door; pumping out air in the vacuum kiln through a vacuum pump, and cooling the air through a condenser while pumping out the air; then heating by a heating pipe in the kiln, blowing hot air to the material by a fan, and evaporating moisture in the material; finally, the condenser pipe is used for refrigerating, the evaporated moisture is condensed into water, and the condensed water is discharged and collected uniformly through a water collecting hole at the tail of the kiln. After this scheme of adoption, its is rational in infrastructure, excellent in use effect, easy operation convenience, practicality are extremely strong.

Description

Material vacuum drying method and system thereof
Technical Field
The invention relates to the technical field of production of environment-friendly materials, in particular to a vacuum drying method and a vacuum drying system for materials.
Background
Vacuum drying is a method of drying under a vacuum and a pressure lower than atmospheric pressure. Under the vacuum condition, the boiling point of water is reduced, the evaporation speed is accelerated, and thus the drying speed of the material can be accelerated at a lower temperature. The moisture in the material continuously moves to the surface, the evaporation speed of the moisture is much higher than the speed of the moisture in the material, the moisture is directly evaporated by the internal temperature in the use process of the traditional vacuum drying kiln, the drying time is longer and the energy consumption is high.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a material vacuum drying method and a material vacuum drying system which are reasonable in structure, good in using effect, simple and convenient to operate and strong in practicability.
In order to achieve the purpose, the technical scheme provided by the invention is as follows: a material vacuum drying method comprises the following steps:
the first step is as follows: feeding the materials into a vacuum kiln through a material frame, and closing a kiln door;
the second step is as follows: pumping out air in the vacuum kiln through a vacuum pump, and cooling the air through a condenser while pumping out the air;
the third step: heating by a heating pipe in the kiln, blowing hot air to the material by a fan, and evaporating moisture in the material;
the fourth step: and (4) refrigerating by using a condensing pipe, condensing the evaporated moisture into water, and discharging and collecting the condensed water uniformly through a water collecting hole at the tail of the kiln.
In the third step, the auxiliary material is evaporated by the heater to generate auxiliary material air, and the auxiliary material air is introduced into the kiln through the air guide pipe.
The utility model provides a material vacuum drying system, it is including the kiln body, the kiln body wherein one end is equipped with the kiln door, install the condenser pipe on the kiln body other end inside wall, install the heating pipe on the kiln body inner chamber both sides lateral wall, kiln body inner chamber both sides are equipped with the fan, one of them side sub-unit connection of kiln body has the air duct, install the control valve on the air duct, air duct intake-tube installation has the air guide cover, air guide cover bottom is equipped with the auxiliary material jar, the heater is installed to auxiliary material tank bottom, kiln body opposite side upper portion is equipped with the exhaust tube, the exhaust tube output is connected with condenser one end, the condenser other end is connected with the blast pipe, blast pipe and vacuum pump connection.
And the exhaust pipe is provided with a safety valve and a pressure relief valve.
The exhaust pipe is provided with a one-way valve.
The kiln body bottom of condenser pipe below be equipped with the water guide surface of slope, be equipped with the water collecting hole that runs through outside and inside on the kiln body of the lower one end of water guide surface, be connected with the collector pipe on the water collecting hole, be equipped with the control valve on the collector pipe.
After the scheme is adopted, after the materials are sent into the vacuum kiln, air in the vacuum kiln is pumped out through the vacuum pump, the air is cooled and cooled while being pumped out, the check valve prevents the air from returning into the kiln from the air inlet pipe in the using process, the heating pipe is heated after the vacuum pumping, the hot air is blown to the materials through the fan, and the moisture in the materials is evaporated; the evaporated water vapor contacts with a condensing pipe to be condensed into water, and the condensed water is discharged and collected uniformly through a water collecting hole at the tail of the kiln after the water falls behind; when the auxiliary material tank is used, the auxiliary material is poured into the auxiliary material tank, the auxiliary material is heated by a heater to generate auxiliary material air, the auxiliary material air enters the kiln through an air guide cover and an air guide pipe, and the auxiliary material air is contacted with the material, so that the components in the auxiliary material air are fully contacted with the material when the material is heated, and the material is absorbed (sulfur is required to be added as the auxiliary material when the bamboo product is dried, and the aim of preventing insects is fulfilled); this scheme is when heating the drying to the material, can condense into water with vapor (especially when to bamboo article and some medicine drying, the bamboo water that the bamboo article drying was evaporated, the medicine water that evaporates when the medicine drying all value of utilization is very big), collects the utilization to the water that condenses again, and its is rational in infrastructure, excellent in use effect, easy operation convenience, practicality are extremely strong.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings, in which preferred embodiments of the invention are: referring to fig. 1, the method for vacuum drying a material according to this embodiment includes the following steps:
the first step is as follows: feeding the materials into a vacuum kiln through a material frame, and closing a kiln door;
the second step is as follows: pumping out air in the vacuum kiln through a vacuum pump, and cooling the air through a condenser while pumping out the air;
the third step: heating by a heating pipe in the kiln, blowing hot air to the material by a fan, and evaporating moisture in the material;
the fourth step: and (4) refrigerating by using a condensing pipe, condensing the evaporated moisture into water, and discharging and collecting the condensed water uniformly through a water collecting hole at the tail of the kiln.
In the third step, the auxiliary material is evaporated by the heater to generate auxiliary material air, and the auxiliary material air is introduced into the kiln through the air guide pipe.
The utility model provides a material vacuum drying system is including the kiln body 1, kiln body 1 wherein one end is equipped with kiln door 5, install condenser pipe 6 on the 1 other end inside wall of kiln body, install heating pipe 3 on the 1 inner chamber both sides lateral wall of kiln body, 1 inner chamber both sides of kiln body are equipped with fan 2, 1 wherein one side sub-unit connection of kiln body has air duct 7, install control valve 8 on the air duct 7, air duct 7 intake pipe is installed air guide cover 9, air guide cover 9 bottom is equipped with auxiliary material jar 10, heater 11 is installed to auxiliary material jar 10 bottom, 1 opposite side upper portion of kiln body is equipped with exhaust tube 12, be equipped with relief valve 13 and pressure relief valve 14 on the exhaust tube 12. The output end of the extraction pipe 12 is connected with one end of a condenser 15, the other end of the condenser 15 is connected with an exhaust pipe 16, and the exhaust pipe 16 is connected with a vacuum pump 17. The exhaust pipe 16 is provided with a check valve 18. The bottom of the kiln body 1 below the condensing pipe 6 is provided with an inclined water guide surface, the kiln body at the lower end of the water guide surface is provided with a water collecting hole which penetrates out from the inside and the outside, the water collecting hole is connected with a water collecting pipe 19, and the water collecting pipe 19 is provided with a control valve 20.
After the scheme is adopted, after the materials are sent into the vacuum kiln, air in the vacuum kiln is pumped out through the vacuum pump, the air is cooled and cooled while being pumped out, the check valve prevents the air from returning into the kiln from the air inlet pipe in the using process, the heating pipe is heated after the vacuum pumping, the hot air is blown to the materials through the fan, and the moisture in the materials is evaporated; the evaporated water vapor contacts with a condensing pipe to be condensed into water, and the condensed water is discharged and collected uniformly through a water collecting hole at the tail of the kiln after the water falls behind; when the auxiliary material tank is used, the auxiliary material is poured into the auxiliary material tank, the auxiliary material is heated by a heater to generate auxiliary material air, the auxiliary material air enters the kiln through an air guide cover and an air guide pipe, and the auxiliary material air is contacted with the material, so that the components in the auxiliary material air are fully contacted with the material when the material is heated, and the material is absorbed (sulfur is required to be added as the auxiliary material when the bamboo product is dried, and the aim of preventing insects is fulfilled); this scheme is when heating the drying to the material, can condense into water with vapor (especially when to bamboo article and some medicine drying, the bamboo water that the bamboo article drying was evaporated, the medicine water that evaporates when the medicine drying all value of utilization is very big), collects the utilization to the water that condenses again, and its is rational in infrastructure, excellent in use effect, easy operation convenience, practicality are extremely strong.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so that the changes in the shape and principle of the present invention should be covered within the protection scope of the present invention.

Claims (6)

1. A material vacuum drying method is characterized in that: it comprises the following steps:
the first step is as follows: feeding the materials into a vacuum kiln through a material frame, and closing a kiln door;
the second step is as follows: pumping out air in the vacuum kiln through a vacuum pump, and cooling the air through a condenser while pumping out the air;
the third step: heating by a heating pipe in the kiln, blowing hot air to the material by a fan, and evaporating moisture in the material;
the fourth step: and (4) refrigerating by using a condensing pipe, condensing the evaporated moisture into water, and discharging and collecting the condensed water uniformly through a water collecting hole at the tail of the kiln.
2. The method for vacuum drying of materials according to claim 1, wherein: in the third step, the auxiliary material is evaporated by the heater to generate auxiliary material air, and the auxiliary material air is introduced into the kiln through the air guide pipe.
3. The utility model provides a material vacuum drying system, it is including kiln body (1), its characterized in that: kiln body (1) wherein one end is equipped with kiln door (5), install condenser pipe (6) on the kiln body (1) other end inside wall, install heating pipe (3) on the kiln body (1) inner chamber both sides lateral wall, kiln body (1) inner chamber both sides are equipped with fan (2), kiln body (1) wherein one side sub-unit connection has air duct (7), install control valve (8) on air duct (7), air duct (7) intake pipe is installed air guide cover (9), air guide cover (9) bottom is equipped with auxiliary material jar (10), heater (11) are installed to auxiliary material jar (10) bottom, kiln body (1) opposite side upper portion is equipped with exhaust tube (12), exhaust tube (12) output is connected with condenser (15) one end, condenser (15) other end is connected with blast pipe (16), blast pipe (16) are connected with vacuum pump (17).
4. A vacuum drying system for materials according to claim 3, wherein: the air extraction pipe (12) is provided with a safety valve (13) and a pressure relief valve (14).
5. A vacuum drying system for materials according to claim 3, wherein: the exhaust pipe (16) is provided with a one-way valve (18).
6. A vacuum drying system for materials according to claim 3, wherein: the bottom of the kiln body (1) below the condensation pipe (6) is provided with an inclined water guide surface, the kiln body at the lower end of the water guide surface is provided with a water collecting hole which penetrates out of the kiln body, the water collecting hole is connected with a water collecting pipe (19), and the water collecting pipe (19) is provided with a control valve (20).
CN202111288256.3A 2021-11-02 2021-11-02 Material vacuum drying method and system thereof Pending CN113915958A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111288256.3A CN113915958A (en) 2021-11-02 2021-11-02 Material vacuum drying method and system thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111288256.3A CN113915958A (en) 2021-11-02 2021-11-02 Material vacuum drying method and system thereof

Publications (1)

Publication Number Publication Date
CN113915958A true CN113915958A (en) 2022-01-11

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Application Number Title Priority Date Filing Date
CN202111288256.3A Pending CN113915958A (en) 2021-11-02 2021-11-02 Material vacuum drying method and system thereof

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Country Link
CN (1) CN113915958A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102112677A (en) * 2008-07-30 2011-06-29 Bsh博世和西门子家用器具有限公司 Drying method and condensation dryer comprising a heat pump and system for recognizing an unallowable operating state
CN202572566U (en) * 2012-03-15 2012-12-05 哈尔滨华意木材干燥设备有限公司 Numerically-controlled vacuum modification drying equipment for wood
CN107166897A (en) * 2017-05-23 2017-09-15 中国农业大学 A kind of vacuum impulse dries the method and apparatus of Poria cocos
CN211876609U (en) * 2020-04-16 2020-11-06 湖南博锋新材料有限公司 But vacuum drying of process addition material closes machine of criticizing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102112677A (en) * 2008-07-30 2011-06-29 Bsh博世和西门子家用器具有限公司 Drying method and condensation dryer comprising a heat pump and system for recognizing an unallowable operating state
CN202572566U (en) * 2012-03-15 2012-12-05 哈尔滨华意木材干燥设备有限公司 Numerically-controlled vacuum modification drying equipment for wood
CN107166897A (en) * 2017-05-23 2017-09-15 中国农业大学 A kind of vacuum impulse dries the method and apparatus of Poria cocos
CN211876609U (en) * 2020-04-16 2020-11-06 湖南博锋新材料有限公司 But vacuum drying of process addition material closes machine of criticizing

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Application publication date: 20220111