CN113028752B - Drying device and drying method thereof - Google Patents
Drying device and drying method thereof Download PDFInfo
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- CN113028752B CN113028752B CN202110243901.3A CN202110243901A CN113028752B CN 113028752 B CN113028752 B CN 113028752B CN 202110243901 A CN202110243901 A CN 202110243901A CN 113028752 B CN113028752 B CN 113028752B
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- 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
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- 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
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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
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Abstract
The invention provides a drying device, which comprises a sealing shell provided with a sealing port, wherein the sealing shell comprises a first flexible layer made of organic polymer, and the thickness of the first flexible layer is 0.8-2.0mm; the drying agent containing bag is used for containing a drying agent, and is fixedly arranged on the side wall in the sealing shell; a sample holder disposed on a bottom surface within the sealed housing. The drying device provided by the invention has flexibility, can be folded and can be compressed and deformed, so that the drying device can be enlarged and reduced according to the drying requirement, and the space is saved; the material flow is light in weight, the material flow cost is low in the transfer process, and meanwhile, the material flow has certain self-supporting property, so that the material flow cannot collapse to pollute a sample.
Description
Technical Field
The invention belongs to the technical field of drying and storing of solid samples, and particularly relates to a dryer and a drying method thereof.
Background
Drying devices such as dryers and drying ovens are widely applied to the fields of laboratory scientific research and the like, and the drying devices mainly play a role in preserving samples under relatively dry conditions and avoiding moisture absorption and pollution.
At present, a dryer and a drying box in a laboratory are usually three-dimensional devices or apparatuses with certain fixed shapes, for example, the dryer is generally a cylindrical device made of glass and has a diameter of more than 30cm, and the drying box is generally a cube made of metal and glass and has a cross-sectional area of more than 30cm × 50 cm; these drying devices are mainly made of metal or thickened glass and other materials, have huge shapes and are usually heavier, and the drying devices are difficult and laborious to take and place; for various types of samples which cannot be mixed for storage, a plurality of drying devices must be purchased, which occupies a large space; for scientific research work of frequently changing operation places such as geological exploration, field surgery examination and the like, a large number of samples need to be dried and stored, and the conventional dryer is difficult to meet the requirements; in addition, conventional dryers can add significant logistical costs to the long distance transport, carriage, and transportation of a particular sample or device.
Disclosure of Invention
In order to solve the technical problems, the invention provides a dryer and a drying method thereof, wherein the dryer has an adjustable shape and occupies a small space; light weight, convenient transfer and low cost.
In one aspect, the present invention provides a drying apparatus, comprising,
a sealed housing provided with a sealing port, the sealed housing comprising a first flexible layer made of an organic polymer, the first flexible layer having a thickness of 0.8-2.0mm;
the drying agent containing bag is used for containing a drying agent and is fixedly arranged on the side wall in the sealed shell;
a sample holder disposed on a bottom surface within the sealed housing.
Further, the organic polymer is any one of the following: polyethylene, polycarbonate.
Further, the sealing shell further comprises a second flexible layer made of synthetic fibers, the second flexible layer is arranged on the outer surface of the first flexible layer, and the ratio of the thickness of the first flexible layer to the thickness of the second flexible layer is larger than or equal to 3.
Further, the thickness of the second flexible layer is 0.2-0.6mm.
Further, the synthetic fiber is any one of the following: polyester and nylon.
Further, the sealing shell further comprises a supporting layer made of an aluminum-plated thin film, the supporting layer is arranged on the inner surface of the first flexible layer, and the thickness of the supporting layer is 0.05-0.15mm.
Further, the aluminum-plated thin film is any one of: polyester aluminizer and aluminizer.
Further, the device also comprises a cover, wherein the cover is arranged on the sample tray and is arranged inside the sealing shell.
Further, the device still includes flexible bracing piece, the both ends of flexible bracing piece all set up in on the inner wall of sealed casing.
In another aspect, the present invention also provides a drying method, which is performed by using the above-mentioned drying apparatus, the method comprising,
and after the drying device is subjected to leak detection, a sample to be dried is placed into the sample holder through the sealing port of the sealing shell, and the sealing port is closed to dry the sample to be dried.
One or more technical schemes in the invention at least have the following technical effects or advantages:
the invention provides a drying device and a drying method thereof. The sealing shell comprises a first flexible layer made of organic polymer, so that the first flexible layer has a soft and waterproof function, and the thickness of the first flexible layer is controlled to enable the first flexible layer to have flexibility and self-supporting property, and the flexibility enables the first flexible layer to have a foldable shape, so that the shape of the sealing shell can be changed, the sealing shell can be enlarged and reduced according to drying requirements, the space is saved, and the requirement of large sample drying amount in field operation can be met; on the other hand, the weight is light, and the logistics cost is low in the transfer process; meanwhile, the material has certain self-supporting property, so that the material cannot collapse to pollute a sample.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a drying apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another drying apparatus provided in an embodiment of the present invention;
FIG. 3 is a schematic view of a desiccant containing packet according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a sample holder according to an embodiment of the present invention.
In the figures 1-4, 1-a sealed shell, 2-a sealed port, 3-a sample holder, 4-a desiccant containing bag, 5-a desiccant and 6-a breather.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments and examples, and the advantages and various effects of the present invention will be more clearly apparent therefrom. It will be understood by those skilled in the art that these specific embodiments and examples are illustrative of the invention and are not to be construed as limiting the invention.
Throughout the specification, unless otherwise specifically noted, terms used herein should be understood as having meanings as commonly used in the art. Accordingly, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. If there is a conflict, the present specification will control.
Unless otherwise specifically stated, various raw materials, reagents, instruments, equipment and the like used in the present invention are commercially available or can be prepared by existing methods.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
In order to solve the technical problems, the general idea of the invention is as follows:
the embodiment of the invention provides a drying device, which is combined with figures 1-4 and comprises a sealed shell 1 provided with a sealing port 2, a desiccant containing bag 2 and a sample holder 3.
Wherein the sealed shell 1 comprises a first flexible layer made of organic polymer, and the thickness of the first flexible layer is 0.8-2.0mm; the drying agent containing bag 2 is used for containing a drying agent 5, and the drying agent containing bag 2 is fixedly arranged on the side wall in the sealed shell 2; the sample holder 3 is provided on the bottom surface inside the hermetic case 1.
The sealed shell 1 comprises a first flexible layer made of organic polymer, so that the first flexible layer has a waterproof and airtight flexible sealing function, and the thickness of the first flexible layer is controlled, so that the sealed shell 1 has flexibility and self-supporting property, the flexibility enables the sealed shell to have foldability and crushability, the size and the shape of the sealed shell 1 can be changed in a folding or flat beating mode, the size can be increased and decreased according to the drying requirement, and the space is saved; on the other hand, the weight is light, and the logistics cost is low in the transfer process; meanwhile, the self-supporting material has certain self-supporting property, so that the sample cannot collapse and be polluted. The first flexible layer is too thin to cause abrasion and air leakage, and the seal housing 1 loses self-supporting property, so that the seal housing 1 collapses and is polluted by contacting with a sample. The first flexible layer is too thick, which may increase the cost, and in addition, the flexibility may be deteriorated, which affects the deformability of the hermetic case 1; too small a thickness of the first flexible layer increases the flexibility of the sealed housing 1, giving it a good deformability, but affects its self-supporting properties.
With metal (density 7.8 g/cm) 3 ) Or thickened glass (density of 2.4-2.8 g/cm) 3 8-20mm thick), the sealing case 1 of the drying device is made of organic polymer and has a density of 0.962-1.2g/cm 3 The density is at least one half less than that of glass, the weight is light, the carrying is convenient, and the logistics transportation cost is low; meanwhile, the device has good deformability, the shape of the device can be adjusted according to a dry sample, and the occupied space can be flexibly adjusted. The sealing port 2 of the sealing shell 1 can use a self-sealing press-fit interface; the shape of the sealed housing 1 may be adjusted as needed, and for example, may be a rectangular parallelepiped shape as shown in fig. 1, a cylindrical shape as shown in fig. 2, or a three-dimensional solid shape with other irregular personality, which is not limited herein. In order to enhance the sealing effect, a plurality of sealing ports 2 may be provided, for example, 2 or 3, so as to facilitate taking and placing samples and meet various requirements, and the sealing ports 2 may be provided at the top, the side, and the like of the sealing housing 1, which is not limited specifically herein.
The sample holder 3 can also be arranged into a groove structure, so that the samples can be prevented from sliding and falling; the bottom that the sample held in the palm 3 can have sticky glue (do not unseal and use the front and have a layer plastic film), can paste the bottom of being fixed in sealed casing 1, can select whether to paste fixedly as required, and the sample holds in the palm 3 the material and can select for use the metal, also can select for use nonmetal, specifically can confirm as required, does not do specific limit here.
The desiccant container 4 is used for containing a desiccant 5, and may be fixed to the inner wall of the sealed housing 1 by an adhesive, or may be fixed in another manner, which is not limited herein. The surface that the drier held package 4 can set up a plurality of bleeder vents 6, and drier 5 can come dry sample through bleeder vent 6, and the drier holds package 4 and is provided with the opening, and the opening can be from the joint of proclaiming oneself. In order to maintain the drying state of the drying device, the drying agent 5 must be provided, the drying agent 5 may be granular or powdery, the granular drying agent 5 may be directly placed in the drying agent containing bag 4, the powdery drying agent 5 is sealed in the air-permeable material and then fixed in the drying agent containing bag 4, and the drying agent 5 includes but is not limited to allochroic silica gel granules, activated alumina granules, magnesium perchlorate powder, phosphorus pentoxide powder, lime powder and the like.
As an embodiment of the present invention, the organic polymer may be any one of: polyethylene, polycarbonate. The first flexible layer made of polyethylene and polycarbonate has good flexibility, can not be damaged after being folded for many times, and has long service life. In addition, the first flexible layer made of polyethylene and polycarbonate has good light transmission, and an operator can conveniently observe the drying condition of the sample to be dried in the sealed shell 1.
As an implementation manner of the embodiment of the present invention, the sealed housing 1 may further include a second flexible layer made of synthetic fibers, the second flexible layer may be disposed on an outer surface of the first flexible layer, and a ratio of a thickness of the first flexible layer to a thickness of the second flexible layer may be greater than or equal to 3. Synthetic fiber is mostly light-tight material, and it sets up can for treating dry sample provides the shading environment on the surface of first flexible layer for dry sample that needs the shading, for example reagents such as silver nitrate, potassium permanganate, lithium bromide.
As an implementation of the embodiment of the invention, the thickness of the second flexible layer may be 0.2-0.6mm. The thickness of the second flexible layer is too small, the shading effect is not good, and the thickness of the second flexible layer is too thick, so that the weight of the shell is influenced.
As an embodiment of the present invention, the synthetic fiber includes, but is not limited to, any one of the following: polyester and nylon.
As an implementation manner of the embodiment of the present invention, the sealed housing 1 may further include a support layer made of an aluminum-plated thin film, the support layer is disposed on an inner surface of the first flexible layer, and a thickness of the support layer may be 0.05-0.15mm.
The support performance of the aluminum-plated film is good, the self-support performance of the sealing shell 1 can be further improved, and the problem that the sample is polluted due to collapse of the sealing shell 1 caused by the fact that the aging self-support performance of the first flexible layer is reduced is avoided. The thickness of the aluminum-plated film is too thin, the self-supporting effect is limited, the thickness of the aluminum-plated film is too thick, the flexibility of the sealing case 1 is deteriorated, the folding performance is not good, and the shape change of the sealing case 1 is affected.
As an implementation of the embodiment of the present invention, the aluminum-plated thin film includes, but is not limited to, any one of the following: polyester aluminizer and aluminizer. The sealed case 1 formed of the polyester aluminum-plated film (VMPET) and the aluminum-plated film (VMCPP) has a light-shielding effect, and when the second flexible layer is not provided, the light-shielding property of the aluminum-plated film can be used to dry the light-shielded sample.
As an implementation manner of the embodiment of the present invention, the apparatus may further include a cover, the cover may be disposed on the sample holder 3, and the cover is disposed inside the sealing housing 1. When drying, the cover can be placed above the sample to be dried, so that the sample is further protected and prevented from being polluted. The samples (such as bottled samples) with external packages can be directly placed on the sample tray 3 without a cover, so that the pollution problem is avoided.
As an implementation manner of the embodiment of the present invention, in order to further keep the shape of the sealed housing 1, the apparatus may further include a telescopic support rod, both ends of which are disposed on the inner wall of the sealed housing 1. The telescopic support rod can be extended or shortened according to the shape change of the sealing shell 1, specifically, the telescopic support rod can be a flexible rod, the sealing shell 1 keeps the shape by bending the flexible rod into a bent rod with a certain radian, and other support rods capable of realizing telescopic action can also be used in the invention.
In another aspect, an embodiment of the present invention further provides a drying method, which is performed by using the above-mentioned drying apparatus, the method includes,
and after the drying device is subjected to leak detection, a sample to be dried is placed into the sample holder through the sealing port of the sealing shell, and the sealing port is closed to dry the sample to be dried.
The drying method specifically comprises the following steps:
1. and (3) leak detection: the sealing opening 2 of the sealing shell 1 is opened, the sealing opening 2 is propped up to fill air as much as possible, the sealing opening 2 is sealed, the inflatable drying device is squeezed by hands with little effort, whether the drying device is damaged or leaks air is sensed, and the next operation can be carried out without air leakage.
2. Filling a drying agent 5:
3. Pasting a drying agent containing bag 4:
the drying device with the adjustable flexibility and the adjustable volume is turned inside and outside, the plastic film on the adhesive glue on one side of the desiccant containing bag is removed, the desiccant containing bag is pasted at the recommended position in the drying device with the adjustable flexibility and the adjustable volume, and the drying device with the adjustable flexibility and the adjustable volume can be turned again to restore the original state by placing the desiccant containing bag at an appropriate position inside the drying device with the adjustable flexibility and the adjustable volume as required. The desiccant containing bag should have at least one bag of color-changing silica gel desiccant for indicating if the desiccant is spent based on the color of the color-changing silica gel (about 10% of the silica gel particles changing from blue to red indicating that the desiccant needs to be replaced).
4. Putting a sample to be dried into the container for drying:
uncover the plastic film that sample held in the palm 3 bottoms viscidity glues, hold in the palm 3 with the sample and paste on the bottom surface in sealed housing 1, fixed sample groove, put into sample groove with the sample, extrude the inside air of device as required, adjusting device size, but sealed drying equipment's pressfitting sealed interface. The sample is put into a sample groove, the air in the device is squeezed as required, the sealed shell 1 is folded or pinched flat, the size of the device is adjusted, and the sealing port 2 of the sealed shell 1 is sealed.
The drying device can be used for a plurality of times for a long time, and the drying agent needs to be replaced after a certain time or the drying agent changes color (the color-changing silica gel changes from blue to red). Replacement of granular drying agent: the sealing opening 2 of the sealing shell 1 is opened, the sample is taken out from the sample support 3 or the sample support 3 and the sample are taken out together, the sealing opening of the desiccant containing bag 4 is opened, the invalid granular desiccant is replaced by a new desiccant, the sample or the sample groove is placed again, the air in the drying device is squeezed as required, the size of the device is adjusted, and the pressable sealing interface of the drying device is sealed. Replacement of the powdered desiccant packet: the sealing opening of the sealing shell 1 is opened, the sealing opening of the desiccant containing bag 4 is opened, the invalid powdery desiccant bag is replaced by a new desiccant, the sample or the sample support 3 is put in again, the air in the device is squeezed as required, the volume of the drying device is adjusted, and the pressing sealing opening of the drying device is sealed.
A drying apparatus according to the present invention will be described in detail with reference to specific examples, comparative examples, and experimental data.
Example 1
Example 2
Example 3
Example 4
Example 4 referring to example 1, example 4 is different from example 1 in that the thickness of the first flexible layer in example 4 is 1.0mm.
Example 5
Example 5 referring to example 3, example 5 is different from example 3 in that the support layer is made of an aluminum-plated film and has a thickness of 0.08mm.
Comparative example 1
Comparative example 1 a drying apparatus was provided, and with reference to example 1, comparative example 1 differs from example 1 in that the first flexible layer made of polyethylene has a thickness of 0.3mm.
Comparative example 2
Comparative example 2 a drying apparatus was provided, with reference to example 2, and comparative example 2 differs from example 2 in that the first flexible layer is the inner layer of the sealed housing 1 and has a thickness of 3.0mm.
Comparative example 3
Comparative example 3 a drying apparatus was provided, and comparative example 3 differs from example 3 in that the support layer is made of a polyester aluminized film having a thickness of 0.3mm.
The desiccant of allochroic silica gel particles was put into the drying apparatuses provided in examples 1 to 5 and comparative examples 1 to 3, and 140g of the desiccant having a volume of 70cm was added thereto 3 The calcined coke of the sample to be dried (filled into the sample box and covered with a cover) was folded and compressed while keeping the drying device out of contact with the dried sample, and the volume of the dried sample added to the drying device was measured as shown in table 1.
As can be seen from table 1, the drying devices provided in examples 1 to 5 of the present invention have a volume change rate of 79 to 85%, and have good self-supporting properties, and the drying devices and the samples are not contaminated with each other. The drying apparatus provided in comparative example 1, although having a volume change rate of 93% which is larger than that of example 1, had the flexible layer too soft, and the flexible layer collapsed to contact the sample when the volume was adjusted. The drying apparatus provided in comparative example 2 was not easily compressed. The drying apparatus provided in comparative example 3 had a volume change rate of 84% at the same level as that of example 3, but recovered significant wrinkles.
TABLE 1
The embodiment of the invention provides a drying device and a drying method thereof, because the sealing shell 1 comprises a first flexible layer made of organic polymer, the first flexible layer has waterproof and airtight flexible sealing functions, and the thickness of the first flexible layer is controlled, so that the sealing shell 1 has flexibility and self-supporting property, the flexibility enables the sealing shell to have foldability and crushability, and the sealing shell can be dried by the drying deviceThe volume and the shape of the sealed shell 1 are changed in an over-folding or flat beating mode, and the sealed shell is enlarged and reduced according to the drying requirement, so that the space is saved; on the other hand, the weight is light, and the logistics cost is low in the transfer process; meanwhile, the material has certain self-supporting property, so that the material cannot collapse to pollute a sample. With metal (density 7.8 g/cm) 3 ) Or thickened glass (density of 2.4-2.8 g/cm) 3 And the thickness is 8-20 mm), etc., the density of the sealing shell 1 of the drying device provided by the invention is at least one half less than that of glass, the weight is light, the carrying is convenient, the logistics transportation cost is low, and the requirement of large sample drying amount in field operation can be met; meanwhile, the device has good deformability, the shape of the device can be adjusted according to a dry sample, and the occupied space can be flexibly adjusted.
Finally, it should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (5)
1. A drying device suitable for field operation samples, which is characterized in that the volume change rate of the drying device can reach 79-85%, the device comprises,
the sealing shell is provided with a sealing opening, the sealing shell comprises a first flexible layer made of organic polymers, the thickness of the first flexible layer is 0.8-2.0mm, and the organic polymers are any one of the following: polyethylene, polycarbonate;
the second flexible layer is made of synthetic fibers and arranged on the outer surface of the first flexible layer, and the ratio of the thickness of the first flexible layer to the thickness of the second flexible layer is more than or equal to 3;
the supporting layer is made of an aluminum-plated film, is arranged on the inner surface of the first flexible layer, and has a thickness of 0.05-0.15mm;
the desiccant containing bag is used for containing a desiccant, the desiccant containing bag is fixedly arranged on the side wall in the sealing shell, and a plurality of air holes are formed in the surface of the desiccant containing bag;
a sample holder disposed on a bottom surface within the sealed housing;
a lid disposed on the sample holder, the lid disposed inside the sealed housing;
the telescopic supporting rod is arranged on the inner wall of the sealing shell, and two ends of the telescopic supporting rod are arranged on the inner wall of the sealing shell.
2. Drying apparatus according to claim 1, in which the second flexible layer has a thickness of 0.2-0.6mm.
3. Drying apparatus according to claim 1, wherein the synthetic fibres are any one of: polyester and nylon.
4. The drying apparatus according to claim 1, wherein the aluminum plating thin film is any one of: polyester aluminizer and aluminizer.
5. A drying method characterized by being carried out using the drying apparatus according to any one of claims 1 to 4, said method comprising,
and after the drying device is subjected to leak detection, a sample to be dried is placed into the sample holder through the sealing port of the sealing shell, and the sealing port is closed to dry the sample to be dried.
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| CN203428240U (en) * | 2013-08-27 | 2014-02-12 | 山东翔宇化纤有限公司 | Polyamide-6 chip storing device |
| EP2862712A1 (en) * | 2013-10-16 | 2015-04-22 | Dow Global Technologies LLC | Flexible film composition for heat seals and container thereof |
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