CN201249051Y - Decoloration filtering device in a process for preparing paracetamol - Google Patents
Decoloration filtering device in a process for preparing paracetamol Download PDFInfo
- Publication number
- CN201249051Y CN201249051Y CNU2008200273390U CN200820027339U CN201249051Y CN 201249051 Y CN201249051 Y CN 201249051Y CN U2008200273390 U CNU2008200273390 U CN U2008200273390U CN 200820027339 U CN200820027339 U CN 200820027339U CN 201249051 Y CN201249051 Y CN 201249051Y
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- filter
- filtering device
- disc
- decoloration
- paracetamol
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Abstract
The utility model discloses a decoloration filtering device in a process for preparing paracetamol, comprising a decoloration tank. The decoloration filtering device is characterized in that the decolorization tank is communicated with a disc filter pipeline, and a disc filter is connected with a crystallization tank pipeline; after a rod filter in the traditional process is changed into the heating disc filter, a stainless steel filter screen is used to substitute a filter paper and a filter cloth; activated carbon is attached to the surface of the filter screen during production, and water is filtered after heating and pressurizing; for remaining activated carbon, a filter disc rotates mechanically to discharge the dry activated carbon to be directly bagged. The stainless steel filter screen can be used repeatedly, and the filtering area are larger than that of the rod filter so as to solve the difficulties of polluted water pollution and secondary treatment of waste carbon and reduce the production cost.
Description
Technical field
The utility model relates to the improvement of paracetamol decolorization filtering device.
Background technology
The filter type that adopts in traditional paracetamol bleaching process is a filter stick formula filter, technological process such as Fig. 1, bleacher 1 is connected with candle filter 3 pipelines 7, candle filter 3 is connected with crystallizing tank 4 pipelines 7, candle filter 3 is connected with sedimentation basin 5 pipelines 8, pipeline 7 is provided with valve 6, and the filter stick in the candle filter 3 is peripheral must to twine multilayer with filter paper and filter cloth, firmly uses with the band binding.After filter finishing, waste active carbon is attached on the filter stick wall, if filter rinsed not, uses next time then too much because of the charcoal that gives up, and can not filter.Therefore must clean candle filter after using, the charcoal water boil pressurization of washing in the candle filter is entered useless charcoal sedimentation basin 5 post precipitations, manually dig out useless charcoal.Filter rinsed needs a large amount of water and steam, produces a large amount of sewage, and wastes energy and manpower.
The utility model content
Problem to be solved in the utility model provides the decolorization filtering device in difficulty that solves sewage pollution and useless charcoal after-treatment in the paracetamol production preparation process and a kind of paracetamol preparation technology who reduces production costs.
In order to achieve the above object, the utility model by the following technical solutions: the decolorization filtering device among a kind of paracetamol preparation technology, comprise bleacher, it is characterized in that: described bleacher is communicated with the disc filter pipeline.
Below be further to improve:
Described disc filter is connected with the crystallizing tank pipeline.
Described disc filter is the heating disc filter.
The employed filter screen of described heating disc filter is a stainless steel filtering net.
In the device, bleacher, crystallizing tank, heating disc filter select for use known equipment to get final product.
At above problem, consider investment and production cost, the candle filter in the traditional handicraft change into the heating disc filter after, adopt stainless steel filtering net to replace filter paper and filter cloth, active carbon is attached to screen surface, after the heating pressurization during production, filter moisture, the residual activity charcoal utilizes the mechanical rotation filter disc, dried active carbon is discharged, directly pack.Stainless steel filtering net can repeated multiple times uses, and filter area increases than candle filter, thereby has solved the difficulty of sewage pollution and useless charcoal after-treatment, has reduced production cost.
Description of drawings
Fig. 1 is the structural representation of decolorization filtering device in the background technology;
Fig. 2 is the structural representation of decolorization filtering device among the embodiment.
Below in conjunction with drawings and Examples the utility model is further detailed
The specific embodiment
Embodiment, as shown in Figure 2, decolorization filtering device among a kind of paracetamol preparation technology, comprise bleacher 1, bleacher 1 is communicated with disc filter 2 pipelines 7, disc filter 2 is connected with crystallizing tank 4 pipelines 7, pipeline 7 is provided with valve 6, disc filter 2 is the heating disc filter, the employed filter screen of heating disc filter is a stainless steel filtering net, during the preparation operation, with water, paracetamol crude product and active carbon add bleacher 1 and boil the operation of decolouring, and the mixture after boiling enters disc filter 2 and carries out filtration operation, and filtrate enters next step operation crystallizing tank 4 refining crystallizations, after filtering end the active carbon in the disc filter 2 is discharged the pack packing with the mechanical rotation filter disc.
Claims (4)
1, the decolorization filtering device among a kind of paracetamol preparation technology comprises bleacher (1), it is characterized in that: described bleacher (1) is communicated with disc filter (2) pipeline.
2, the decolorization filtering device among a kind of paracetamol preparation technology as claimed in claim 1 is characterized in that: described disc filter (2) is connected with crystallizing tank (4) pipeline.
3, the decolorization filtering device among a kind of paracetamol preparation technology as claimed in claim 1 is characterized in that: described disc filter (2) is the heating disc filter.
4, the decolorization filtering device among a kind of paracetamol preparation technology as claimed in claim 1, it is characterized in that: the employed filter screen of described heating disc filter is a stainless steel filtering net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200273390U CN201249051Y (en) | 2008-08-29 | 2008-08-29 | Decoloration filtering device in a process for preparing paracetamol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200273390U CN201249051Y (en) | 2008-08-29 | 2008-08-29 | Decoloration filtering device in a process for preparing paracetamol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201249051Y true CN201249051Y (en) | 2009-06-03 |
Family
ID=40744722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200273390U Expired - Fee Related CN201249051Y (en) | 2008-08-29 | 2008-08-29 | Decoloration filtering device in a process for preparing paracetamol |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201249051Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102382004A (en) * | 2011-08-19 | 2012-03-21 | 河北冀衡（集团）药业有限公司 | Decolorization pre-treatment system and decolorization pre-treatment method of acetaminophen |
| CN107019953A (en) * | 2017-05-27 | 2017-08-08 | 湖北华丹医药科技股份有限公司 | A kind of positive pressure-off charcoal conveying device of bulk drug crystallizing tank liquid material |
| CN113750569A (en) * | 2021-09-01 | 2021-12-07 | 连云港康乐药业有限公司 | Decoloration filtering device and method in paracetamol preparation process |
-
2008
- 2008-08-29 CN CNU2008200273390U patent/CN201249051Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102382004A (en) * | 2011-08-19 | 2012-03-21 | 河北冀衡（集团）药业有限公司 | Decolorization pre-treatment system and decolorization pre-treatment method of acetaminophen |
| CN102382004B (en) * | 2011-08-19 | 2015-03-25 | 河北冀衡（集团）药业有限公司 | Decolorization pre-treatment system and decolorization pre-treatment method of acetaminophen |
| CN107019953A (en) * | 2017-05-27 | 2017-08-08 | 湖北华丹医药科技股份有限公司 | A kind of positive pressure-off charcoal conveying device of bulk drug crystallizing tank liquid material |
| CN113750569A (en) * | 2021-09-01 | 2021-12-07 | 连云港康乐药业有限公司 | Decoloration filtering device and method in paracetamol preparation process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090603 Termination date: 20130829 |