CN1230656C - Method for drying cream and dynamic vacuum drier - Google Patents
Method for drying cream and dynamic vacuum drier Download PDFInfo
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- CN1230656C CN1230656C CN 03117185 CN03117185A CN1230656C CN 1230656 C CN1230656 C CN 1230656C CN 03117185 CN03117185 CN 03117185 CN 03117185 A CN03117185 A CN 03117185A CN 1230656 C CN1230656 C CN 1230656C
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Abstract
The present invention discloses a drying method for pastes and a dynamic vacuum drier thereof. The dynamic vacuum drier comprises a tank body, a casing, an upper cover and a lower cover, wherein an interlayer is formed between the tank body and the casing; the tank body is connected with an air suction pipe connected with a vacuum pump; a screen plate with screen holes is arranged in the tank body; the tank body is divided into an upper space and a lower space via the screen plate; the air suction pipe is communicated with the lower space; the past is arranged on the screen plate in the tank body of the dynamic vacuum drier; after the paste is continuously shunted into a plurality of phi 1-3mm paste strips by the screen holes on the screen plate under the pressure difference, the paste strips are continuously dried on the lower space with high vacuum degree in a dynamic mode. A dry area of the paste surface is increased by times or magnitude orders via the method, and thereby, the present invention has the advantages that the drying time of the paste is shortened; the energy consumption is reduced; the productivity is increased; the device investment is reduced because the manufacturing cost of devices is low; further, the production cost is reduced. The present invention can be widely used for drying foods, medicine and other pastes.
Description
Technical field
The present invention relates to a kind of drying and processing method and special equipment thereof of paste, especially the drying means of paste such as Chinese medicine, food and dynamic vacuum drying machine thereof.
Background technology
At present, the drying of pastes such as Chinese medicine, food mainly contains vacuum drier, crawler type vacuum drier etc., and vacuum drier is that paste is placed in the batch pan in use, and is static dry under the condition of thermal vacuum.Its shortcoming be drying time long, productivity ratio is low, energy consumption is high.The crawler type vacuum drier be in use will dilution the paste surface that sparges corrosion resistant plate form the paste thin layer, under the thermal vacuum condition, carry and carry out continuous drying by crawler belt.The shortcoming of this drying machine is: could spray after paste need dilute forms the paste thin layer, and the water content of paste is higher, thereby the big and apparatus expensive of energy consumption when dry.
Summary of the invention
In order to overcome the drying means and the bigger deficiency of drying equipment energy consumption of existing paste, the invention provides a kind of drying means and dynamic vacuum drying machine thereof of the paste that can cut down the consumption of energy.
The technical solution adopted for the present invention to solve the technical problems is: a kind of drying means of paste, be paste to be placed in heating and vacuum tank carry out drying, it is characterized in that: paste is the upper space from the lower tank body of vacuum, after being split into the paste bar by the sieve aperture on the sieve plate, entering the higher lower space of vacuum and carry out dynamic continuous drying.
The dynamic vacuum drying machine of making according to the drying means of above-mentioned paste, comprise tank body, shell, loam cake, lower cover, form interlayer between tank body and the shell, shell is provided with air inlet and the gas outlet that communicates with interlayer, also be connected with the air intake duct that links to each other with vavuum pump on the tank body, it is characterized in that: be provided with the sieve plate of band sieve aperture in the tank body, sieve plate is divided into upper space and lower space with tank body, and air intake duct communicates with lower space.
The invention has the beneficial effects as follows, enter the drying means that the higher lower space of vacuum is carried out dynamic continuous drying owing to adopted after paste is split into the paste bar, make paste the dry tack free area at double and even become the increase of the order of magnitude, thereby shortened the drying time of paste, therefore can cut down the consumption of energy, boost productivity, and because the device fabrication cost is low, can also drop into by minimizing equipment, further reduce production costs.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the structure cutaway view of dynamic vacuum drying machine of the present invention.
The specific embodiment
The drying means of paste of the present invention, be paste 20 to be placed in heating and the higher tank body 1 of vacuum carry out drying, and allow paste 20 from the lower upper space 4 of vacuum, after being split into the paste medicinal strip by the sieve aperture on the sieve plate 23, enter the higher lower space of vacuum 5 again and carry out dynamic continuous drying, make paste 20 the dry tack free area at double and even become the increase of the order of magnitude, and under the higher state of vacuum, the vacuum that is lower space 5 can be controlled in 1.6KPa～2KPa, moisture in the paste 20 is relatively easy to come out, and reaches rapid draing, the purpose that cuts down the consumption of energy.
Above-mentioned drying means is realized by the dynamic vacuum drying machine.As shown in Figure 1, the dynamic vacuum drying machine comprises tank body 1, shell (18), loam cake 6, lower cover 7, form interlayer 10 between tank body 1 and the shell 18, shell 18 is provided with air inlet 8 and the gas outlet 9 that communicates with interlayer, this interlayer 10 is used to feed media such as hot-air, deep fat, hot water, give the paste in tank body 1 and the tank body 1 20 heating, make paste 20 softening and mobile easily under the effect of external force.Also be connected with the air intake duct 12 that links to each other with vavuum pump 11 on the tank body 1, make atmospheric pressure reduction in the tank body 1 by the air in the suction tank body 1.Be provided with the sieve plate 2 of band sieve aperture 3 in the tank body 1, sieve plate 2 is divided into upper space 4 and lower space 5 with tank body 1, and air intake duct 12 communicates with lower space 5.After paste 20 is placed on upper space 4, upper space 4 and lower space 5 are separated, after starting vavuum pump 11, decline along with lower space 5 pressure, form pressure differential between upper space 4 and the lower space 5, paste 20 enters lower space 5 by the sieve aperture on the sieve plate 23 under action of pressure, be split into some paste bars simultaneously and carry out drying.Certainly, paste 20 also can enter lower space 5 by other external force, as modes such as employing screw propulsions.
The pressure differential between the aperture of above-mentioned sieve aperture 3, upper space 4 and the lower space 5 and the vacuum of lower space can be adjusted according to the proterties of concrete paste, and wherein, the vacuum of lower space is high more, and is favourable more to the drying of paste.
Embodiment 1: as mentioned above, the dynamic vacuum drying machine of the drying means of paste of the present invention and use thereof is that paste 20 is placed on the sieve plate 2 in the dynamic vacuum drying machine tank body 1, and the sieve aperture 3 on the sieve plate 2 is Φ 1～3mm.Becoming softening after the thermal medium heating in paste 20 via interlayers 10 easily flows.After starting vavuum pump 11, decline along with lower space 5 pressure, form pressure differential between upper space 4 and the lower space 5, paste 20 enters lower space 5 by the sieve aperture 3 of the Φ 1～3mm on the sieve plate 2 under action of pressure, paste 20 constantly is split into some Φ 1～3mm paste bars simultaneously, carry out dynamic continuous drying in the lower space 5 that vacuum is higher, in the time of in the controlled pressure difference is 0.5KPa～1KPa scope, paste 20 can be continuous the sieve aperture 3 that passes through enter lower space 5, it is comparatively appropriate generally pressure differential to be controlled at 0.8KPa.Pressure differential can be undertaken by the intake valve 13 that is arranged on upper space 4 manually or automatically regulating, and upper space 4 and lower space 5 are respectively arranged with vacuum meter 14 and following vacuum meter 15.When intake valve 13 adopts hand-operated valve, to enter lower space 5 more and cause the pressure of upper space 4 to descend when paste 20, thereby make pressure differential between upper space 4 and the lower space 5 less and can not make paste 20 continue the time by sieve aperture 3, opening intake valve 13 can increase pressure differential between upper space 4 and the lower space 5, thereby plays the adjusting action of pressure.Certainly, intake valve 13 also can adopt motor-driven valve, and the difference by last vacuum meter 14 and following vacuum meter 15 is carried out switch to intake valve 13 and controlled automatically as control signal.
Embodiment 2: this embodiment is on the basis of the above-mentioned specific embodiment and embodiment 1, and the Radix Isatidis aqueous extract is carried out dry situation, and its data are as follows:
The Radix Isatidis aqueous extract:
Density: 1.20～1.40Kg/m
3Water content: 32%;
Screen-aperture: Φ 1.5mm; Vacuum: 1.73KPa～2KPa
Heating-up temperature: 100 ℃; Boost productivity: 〉=3 times;
Final water content: 3%;
Embodiment 3: this embodiment is on the basis of the above-mentioned specific embodiment and embodiment 1, and uvaol medicinal extract (60% ethanol) is carried out dry situation, and its data are as follows:
Uvaol medicinal extract (60% ethanol):
Density: 1.20～1.40Kg/m
3Water content: 32%
Screen-aperture: Φ 1.5mm; Operating pressure: 1.73KPa～2KPa
Heating-up temperature: 100 ℃; Boost productivity: 〉=3 times;
Final water content: 3%;
Claims (10)
1, a kind of drying means of paste, be paste (20) to be placed in the vacuum tank of heating carry out drying, it is characterized in that: paste (20) is the upper space (4) from the lower tank body of vacuum (1), after being split into the paste bar by the sieve aperture (3) on the sieve plate (2), entering the higher lower space of vacuum (5) and carry out dynamic continuous drying.
2, the drying means of paste as claimed in claim 1 is characterized in that: described paste bar is Φ 1～3mm.
3, the drying means of paste as claimed in claim 1 or 2 is characterized in that: it is to realize by the pressure differential between upper space (4) and the lower space (5) that described paste (20) enters lower space (5) from upper space (4).
4, the drying means of paste as claimed in claim 3 is characterized in that: described pressure differential is 0.5KPa～1KPa.
5, the drying means of paste as claimed in claim 4 is characterized in that: described pressure differential is 0.8KPa.
6, for implementing the custom-designed dynamic vacuum drying machine of drying means of the described paste of claim 1, comprise tank body (1), shell (18), loam cake (6), lower cover (7), form interlayer (10) between tank body (1) and the shell (18), shell (18) is provided with air inlet (8) and gas outlet (9) that communicate with interlayer (10), also be connected with the air intake duct (12) that links to each other with vavuum pump (11) on the tank body (1), it is characterized in that: the sieve plate (2) that is provided with band sieve aperture (3) in the tank body (1), sieve plate (2) is divided into upper space (4) and lower space (5) with tank body (1), and air intake duct (12) communicates with lower space (5).
7, dynamic vacuum drying machine as claimed in claim 6 is characterized in that: described sieve aperture (3) is Φ 1～3mm.
8, as claim 6 or 7 described dynamic vacuum drying machines, it is characterized in that: described upper space (4) is provided with intake valve (13).
9, dynamic vacuum drying machine as claimed in claim 8 is characterized in that: described upper space (4) and lower space (5) are respectively arranged with vacuum meter (14) and following vacuum meter (15).
10, dynamic vacuum drying machine as claimed in claim 9 is characterized in that: described intake valve (13) is hand-operated valve or the motor-driven valve controlled by the pressure differential between upper space (4) and the lower space (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03117185 CN1230656C (en) | 2003-01-17 | 2003-01-17 | Method for drying cream and dynamic vacuum drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03117185 CN1230656C (en) | 2003-01-17 | 2003-01-17 | Method for drying cream and dynamic vacuum drier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1431443A CN1431443A (en) | 2003-07-23 |
| CN1230656C true CN1230656C (en) | 2005-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03117185 Expired - Fee Related CN1230656C (en) | 2003-01-17 | 2003-01-17 | Method for drying cream and dynamic vacuum drier |
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| Country | Link |
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| CN (1) | CN1230656C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538412B (en) * | 2012-02-28 | 2014-02-05 | 宏芳香料（昆山）有限公司 | Paste drying equipment and drying method thereof |
| CN106403510B (en) * | 2015-07-29 | 2019-02-19 | 广西梧州制药（集团）股份有限公司 | Application of convection-microwave heat transfer mode in reduced pressure drying |
| CN110926120B (en) * | 2018-12-28 | 2023-05-12 | 韩荣献 | Dynamic vacuum system with balanced chamber and material drying method |
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2003
- 2003-01-17 CN CN 03117185 patent/CN1230656C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1431443A (en) | 2003-07-23 |
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