CN204830697U - Nitrogen gas circulation drying device - Google Patents
Nitrogen gas circulation drying device Download PDFInfo
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- CN204830697U CN204830697U CN201520577693.0U CN201520577693U CN204830697U CN 204830697 U CN204830697 U CN 204830697U CN 201520577693 U CN201520577693 U CN 201520577693U CN 204830697 U CN204830697 U CN 204830697U
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- drying box
- storage tube
- drying
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- drier storage
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Abstract
The utility model provides a nitrogen gas circulation drying device, includes the drying cabinet, and stores a section of thick bamboo, vacuum pump, nitrogen cylinder with the drier that the drying cabinet is connected. Finished product needed the dry problem under the anaerobic condition during valaciclovir hydrochloride production had been solved to this device, had avoided the oxidation of finished product in dry run, had improved the quality of product. The device is applicable to finished product's in the valaciclovir hydrochloride production drying process, has characteristics rational in infrastructure, that the running cost low, drying effect is good, the product colour is white.
Description
Technical field
The utility model relates to a kind of drying device, especially a kind of cyclic nitrogen drying device, is applicable to the drying process that valaciclovir hydrochlordide produces Raw, belongs to dry production technical field.
Background technology
Because nitrogen has good chemical stability, as anaerobic, dry inert media, be extensively used as protection filling gas, not oxidated with the material making chemical property active.Therefore, have a wide range of applications in the raw material of nitrogen in pharmaceuticals industry, intermediate, finished product drying, medicine nitrogen-filled packaging, transport etc.Traditional valaciclovir hydrochlordide produce in, due to adopt is air heated-air drying, product in dry run due to oxidation its colour changed into yellow, have impact on the quality of product; What Ye You enterprise adopted is realize drying operation by being filled with oxygen containing air in nitrogen displacement case in the casing of sealing, but does not utilize nitrogen circulation, causes the dry expense run very high.
Summary of the invention
The purpose of this utility model is to provide a kind of rational in infrastructure, operating cost is low, drying effect good, product colour is white cyclic nitrogen drying device.
The technical scheme that the utility model is taked is, a kind of cyclic nitrogen drying device, comprises drying box, and the first drier storage tube be connected with drying box, the second drier storage tube, vavuum pump, nitrogen cylinder.
Described drying box is made up of insulating interlayer, dryness storehouse, dividing plate, heating cabinet, drying box door.
Drying box is divided into dryness storehouse and heating cabinet two parts by described dividing plate, dividing plate is evenly distributed with multiple perforate; Heating cabinet is provided with electric heating tube and blower fan; Drying box door kayser is fixed on outside dryness storehouse by the first hinge of drying box top edge, the second hinge of drying box lower edge and handle by drying box door, and dryness storehouse is sealed by the sealing joint strip be fixed on outside dryness storehouse by drying box door; Temperature Control director is installed on the top of the other drying box outer wall of drying box door; Insulation material is filled with in insulating interlayer; Be provided with the first passage of through insulating interlayer at the top of drying box, be provided with the second passage of through insulating interlayer in the upper back of dryness storehouse, be provided with the 3rd passage of through insulating interlayer at the rear middle part of heating cabinet.
Described first drier storage tube and the second drier storage tube are connected and fixed on pipeline respectively by spiral; First drier storage tube, the second drier storage tube connect side by side, and are connected by the second passage of pipeline and drying box, the 3rd passage; Drier is filled with in first drier storage tube, the second drier storage tube.
Described vavuum pump, nitrogen cylinder are connected with the first passage by pipeline, and pipeline is also provided with pressure vacuum gauge.
Describedly on each pipeline, valve is set as required.This device adopts the mode of nitrogen circulation to carry out drying to valaciclovir hydrochlordide finished product; owing to containing a certain amount of ethanol in product; nitrogen is filled with in drying device; material not only can be protected not oxidated, keep product quality, can also safety be ensured; prevent burning, explosion accident generation; it also avoid the oxidation of finished product in dry run, improve the quality of product, reduce production cost.This device have employed two drier storage tube simultaneously, and make the replacing of drier very convenient, drying efficiency greatly improves.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
As shown in the figure, the utility model is by comprising drying box 1, and the first drier storage tube 3, the second drier storage tube 4, vavuum pump 5, the nitrogen cylinder 6 that are connected with drying box 1.
Drying box 1 is made up of insulating interlayer 1-1, dryness storehouse 1-2, dividing plate 1-10, heating cabinet 1-11, drying box door 1-6, wherein, drying box 1 is divided into dryness storehouse 1-2 and heating cabinet 1-11 two parts by dividing plate 1-10, dividing plate 1-10 is evenly distributed with multiple perforate (aperture 0.8cm); Heating cabinet 1-11 is provided with electric heating tube 1-9(2.5kW) and axial flow blower 1-12; Drying box door 1-6 kayser is fixed on outside dryness storehouse 1-2 by the first hinge 1-3 of drying box 1 top edge, the second hinge 1-8 of drying box 1 lower edge and handle 1-5 by drying box door 1-6, and dryness storehouse 1-2 is sealed by the sealing joint strip 1-7 be fixed on outside dryness storehouse 1-2 by drying box door 1-6; Temperature Control director 1-4 is installed on the top of other drying box 1 outer wall of drying box door 1-6; Insulation material is filled with in insulating interlayer 1-1; The first passage 1-15 of through insulating interlayer 1-1 is provided with at the top of drying box 1, be provided with the second passage 1-14 of through insulating interlayer 1-1 in the upper back of dryness storehouse 1-2, be provided with the 3rd passage 1-14 of through insulating interlayer 1-1 at the rear middle part of heating cabinet 1-2.
First drier storage tube 3 and the second drier storage tube 4 are connected and fixed on pipeline respectively by spiral; First drier storage tube 3, second drier storage tube 4 connects side by side, and is connected with the second passage 1-14, the 3rd passage 1-14 of drying box 1 by pipeline; Anhydrous calcium chloride drier is filled with in first drier storage tube 3, second drier storage tube 4.
Vavuum pump 5, nitrogen cylinder 6 are connected with the first passage 1-15 by pipeline, and pipeline is also provided with pressure vacuum gauge 2.
Each pipeline arranges valve as required.
The operating process of this device is as follows:
Pull open handle 1-5 drying box door 1-6 is opened, valaciclovir hydrochlordide finished product that will be dry is put into pallet and is placed in heating cabinet 1-11, locking drying box door 1-6, the air (vacuum-0.07MPa) in drying box 1 extracted out by startup vavuum pump 5, close vavuum pump 5, open nitrogen cylinder 6 valve, nitrogen (pressure 0.05MPa) is filled with in drying box 1, repeat again once to vacuumize and operate with inflated with nitrogen, make can open heating when nitrogen pressure is 0.01MPa in drying box 1, drying is carried out to material, moisture in material is carried to drier storage tube 3 by nitrogen, dried dose of absorption in drier storage tube 4, material is dried.When drying operation, in drier storage tube 3, drier storage tube 4, drier is by closing the valve be communicated with it, and dismounting drier storage tube is changed.
Claims (4)
1. a cyclic nitrogen drying device, this device comprises drying box (1), drying box (1) is by insulating interlayer (1-1), dryness storehouse (1-2), dividing plate (1-10), heating cabinet (1-11), drying box door (1-6) forms, and the first drier storage tube (3) to be connected with drying box (1), second drier storage tube (4), vavuum pump (5), nitrogen cylinder (6), it is characterized in that, drying box (1) is divided into dryness storehouse (1-2) and heating cabinet (1-11) two parts by dividing plate (1-10), dividing plate (1-10) is evenly distributed with multiple perforate, heating cabinet (1-11) is provided with electric heating tube (1-9) and blower fan (1-12), drying box door (1-6) kayser is fixed on dryness storehouse (1-2) outward by first hinge (1-3) of drying box (1) top edge, second hinge (1-8) of drying box (1) lower edge and handle (1-5) by drying box door (1-6), and dryness storehouse (1-2) seals by being fixed on dryness storehouse (1-2) sealing joint strip outward (1-7) by drying box door (1-6), temperature Control director (1-4) is installed on the top of other drying box (1) outer wall of drying box door (1-6), insulation material is filled with in insulating interlayer (1-1), first passage (1-15) of through insulating interlayer (1-1) is provided with at the top of drying box (1), be provided with second passage (1-14) of through insulating interlayer (1-1) in the upper back of dryness storehouse (1-2), be provided with the 3rd passage (1-14) of through insulating interlayer (1-1) at the rear middle part of heating cabinet (1-2).
2. cyclic nitrogen drying device according to claim 1, is characterized in that, the first drier storage tube (3) and the second drier storage tube (4) are connected and fixed on pipeline respectively by spiral; First drier storage tube (3), the second drier storage tube (4) connect side by side, and are connected by second passage (1-14) of pipeline and drying box (1), the 3rd passage (1-14); Drier is filled with in first drier storage tube (3), the second drier storage tube (4).
3. cyclic nitrogen drying device according to claim 1, is characterized in that, vavuum pump (5), nitrogen cylinder (6) are connected with the first passage (1-15) by pipeline, pipeline are also provided with pressure vacuum gauge (2).
4. cyclic nitrogen drying device according to claim 1 and 2, is characterized in that, each pipeline arranges valve as required.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520577693.0U CN204830697U (en) | 2015-08-04 | 2015-08-04 | Nitrogen gas circulation drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520577693.0U CN204830697U (en) | 2015-08-04 | 2015-08-04 | Nitrogen gas circulation drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204830697U true CN204830697U (en) | 2015-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520577693.0U Expired - Fee Related CN204830697U (en) | 2015-08-04 | 2015-08-04 | Nitrogen gas circulation drying device |
Country Status (1)
| Country | Link |
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| CN (1) | CN204830697U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018055A (en) * | 2016-06-27 | 2016-10-12 | 长沙开元仪器股份有限公司 | Drying oven for protective gas |
| CN106052322A (en) * | 2016-07-18 | 2016-10-26 | 长沙开元仪器股份有限公司 | Gas-saving type protective gas drying box |
| CN106440670A (en) * | 2016-12-14 | 2017-02-22 | 河南华瑞高新材料科技股份有限公司 | Powder material vacuum baking device |
| CN108444274A (en) * | 2018-02-12 | 2018-08-24 | 中国农业科学院蜜蜂研究所 | A kind of Bee Pollen continuous drier and its drying means |
-
2015
- 2015-08-04 CN CN201520577693.0U patent/CN204830697U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018055A (en) * | 2016-06-27 | 2016-10-12 | 长沙开元仪器股份有限公司 | Drying oven for protective gas |
| CN106052322A (en) * | 2016-07-18 | 2016-10-26 | 长沙开元仪器股份有限公司 | Gas-saving type protective gas drying box |
| CN106052322B (en) * | 2016-07-18 | 2019-03-08 | 长沙开元仪器股份有限公司 | A kind of gas-saving type protective gas drying box |
| CN106440670A (en) * | 2016-12-14 | 2017-02-22 | 河南华瑞高新材料科技股份有限公司 | Powder material vacuum baking device |
| CN108444274A (en) * | 2018-02-12 | 2018-08-24 | 中国农业科学院蜜蜂研究所 | A kind of Bee Pollen continuous drier and its drying means |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20170804 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |