CN202246493U - Device for decoloring urotropin mother liquor by using gas phase method - Google Patents
Device for decoloring urotropin mother liquor by using gas phase method Download PDFInfo
- Publication number
- CN202246493U CN202246493U CN2011203780859U CN201120378085U CN202246493U CN 202246493 U CN202246493 U CN 202246493U CN 2011203780859 U CN2011203780859 U CN 2011203780859U CN 201120378085 U CN201120378085 U CN 201120378085U CN 202246493 U CN202246493 U CN 202246493U
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- mother liquor
- groove
- decoloring
- decolouring
- mother
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Abstract
The utility model relates to the technical field of production of urotropin by using a gas phase method, in particular to a device for decoloring urotropin mother liquor by using the gas phase method. The device comprises a mother liquor circulating tank, a mother liquor decoloring tank, a plate-and-frame filter press and a mother liquor precipitation tank. The mother liquor circulating tank is connected with the mother liquor decoloring tank, a mother liquor outlet in a device for preparing urotropin by using the gas phase method and an ammoniation reactor respectively; the mother liquor flowing into the mother liquor circulating tank through the mother liquor outlet is introduced into the mother liquor decoloring tank for decoloring; the mother liquor qualified in decoloring is introduced in the ammoniation reactor; the mother liquor decoloring tank, the plate-and-frame filter press and the mother liquor precipitation tank are connected in a circulating way; the mother liquor to be decolored is decolored in the mother liquor decoloring tank, the plate-and-frame filter press and the mother liquor precipitation tank in a circulating way; the mother liquor precipitation tank is connected with the mother liquor circulating tank; and the mother liquor qualified in decoloring is introduced in the mother liquor circulating tank. The utility model has the advantage that the quality of the product is improved after decoloring treatment.
Description
Technical field
The utility model relates to the urotropine by using gas phase method production technical field, particularly a kind of decoloring equipment of urotropine by using gas phase method mother liquor.
Background technology
Urotropine is as resin and the solidifying agent of plastics, the vulcanization accelerator (vulkacit H) of rubber, the sanforzing agent of textiles, and is used to make sterilant, explosive etc.When medicinal, back for oral administration is met the aciduria decomposition and is produced formaldehyde and play germicidal action, is used for slight urinary tract infections; Be used to outward control tinea, hidroschesis, control underarm odor.Mix with caustic soda and sodium phenylate, be used for smoke mask and make the phosgene absorption agent.Urotropine still is a kind of inhibiter commonly used, is used to slow down Corrosion of Metallic Materials.
Vapor phase process prepares in the urotropine process, but the equipment of producing urotropine is after operation for some time, because the existence of formic acid in the formaldehyde.Mist of oil carries that reason can generate the brown polymkeric substance of thickness with temperature of reaction is higher etc. secretly in the gas ammonia.These resultants can influence urotropine outward appearance, purity and ash content.
Summary of the invention
The technical problem that the utility model will solve is: a kind of decoloring equipment of urotropine by using gas phase method mother liquor is provided, can be at set intervals to the processing of decolouring of urotropine mother liquor.
The utility model solves the technical scheme that its technical problem adopted: a kind of decoloring equipment of urotropine by using gas phase method mother liquor; Comprise Recycling Mother Solution groove, mother liquor decolouring groove, plate-and-frame filter press and mother liquor settling bath; The Recycling Mother Solution groove respectively with mother liquor decolouring groove, urotropine by using gas phase method preparation facilities in the mother liquor outlet be connected with ammoniation reactor; To squeeze into mother liquor decolouring groove through the mother liquor of mother liquor outlet inflow Recycling Mother Solution groove decolours; And the qualified mother liquor that will decolour squeezes into ammoniation reactor, and mother liquor decolouring groove, plate-and-frame filter press circulate successively with the mother liquor settling bath and be connected, mother liquor the to be decoloured decolouring that in mother liquor decolours groove, plate-and-frame filter press and mother liquor settling bath, circulates; The mother liquor settling bath is connected with the Recycling Mother Solution groove, and the qualified mother liquor of decolouring is returned the Recycling Mother Solution groove.
Particularly, mother liquor decolouring groove is the storage tank of band heating coil.
Particularly, the crystallization groove in Recycling Mother Solution groove and the urotropine by using gas phase method preparation facilities is connected with mother liquor outlet on the whizzer.
The beneficial effect of the utility model is: after handling through decolouring of the present invention, improved the quality of product.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is the structure diagram of the utility model;
Among the figure 1, ammoniation reactor, 2, the crystallization groove, 3, whizzer, 4, dehumidification system; 5, reclaim washing tower, 6, ammonia absorber, 7, condensing surface, 8, dashpot; 9, tail gas absorber, 10, Analytic Tower, 11, plate-and-frame filter press, 12, the mother liquor settling bath; 13, Recycling Mother Solution groove, 14, mother liquor decolouring groove, 15, mother liquor decolouring pump, 16, recycle pump.
Embodiment
A kind of urotropine by using gas phase method as shown in Figure 1 prepares equipment, has ammoniation reactor 1, and the material outlet place, lower end of ammoniation reactor 1 is connected with crystallization groove 2; Be connected with whizzer 3 on the crystallization groove 2, be connected with dehumidification system 4 on the whizzer 3, dehumidification system 4 upper ends are connected with reclaims washing tower 5; The upper end of ammoniation reactor 1 is connected with ammonia absorber 6; The upper end of ammonia absorber 6 is connected with condensing surface 7, and the bottom of condensing surface 7 is connected with dashpot 8, and the upper end of dashpot 8 is connected with tail gas absorber 9; The top of ammoniation reactor 1 is connected with Analytic Tower 10, and the bottom of Analytic Tower 10 is connected the lower end of ammonia absorber 6, condensing surface 7 and dashpot 8.
As shown in Figure 2; Prepare the decoloring equipment that increases by a cover urotropine by using gas phase method mother liquor in the equipment at this urotropine by using gas phase method; Can be at set intervals to the processing of decolouring of urotropine mother liquor; Improve the quality of product, this decoloring equipment comprises Recycling Mother Solution groove 13, mother liquor decolouring groove 14, plate-and-frame filter press 11 and mother liquor settling bath 12, Recycling Mother Solution groove 13 respectively with mother liquor decolouring groove 14, urotropine by using gas phase method preparation facilities in the mother liquor outlet be connected with ammoniation reactor 1; To squeeze into mother liquor decolouring groove 14 through the mother liquor of mother liquor outlet inflow Recycling Mother Solution groove 13 decolours; And the qualified mother liquor that will decolour squeezes into ammoniation reactor 1, and mother liquor decolouring groove 14, plate-and-frame filter press 11 circulates successively with mother liquor settling bath 12 and be connected, and mother liquor to be decoloured circulates in mother liquor decolouring groove 14, plate-and-frame filter press 11 and mother liquor settling bath 12 and decolours; Mother liquor settling bath 12 is connected with Recycling Mother Solution groove 13, and the qualified mother liquor of decolouring is returned Recycling Mother Solution groove 13.Particularly, the crystallization groove 2 in Recycling Mother Solution groove 13 and the urotropine by using gas phase method preparation facilities is connected with mother liquor outlet on the whizzer 3.
A kind of decoloring method of urotropine by using gas phase method mother liquor; With the urotropine mother liquor of needs decolouring, send into mother liquor decolouring groove 14, mother liquor decolouring groove 14 flat-top flat cover cylindrical tanks for the band heating coil; Be provided with in the storage tank and mark time, so that the cleaning of mother liquor decolouring groove 14.In mother liquor decolouring groove 14, add the gac of a certain amount of powdery alkalescence, the add-on of gac is 2～5% of a mother liquor, and heating absorption impurity, and mother liquor decolouring groove 14 needs same steam insulation, in general normal running needs temperature 70-80 ℃.
Mother liquor in the mother liquor decolouring groove 14 decolours through mother liquor, and pump 15 is squeezed into plate-and-frame filter press 11, mother liquor settling bath 12 loops back and flows into mother liquor decolouring groove 14, and the reflux time looks the mother liquor shade and decides, and is generally 30～45min, specifically is as the criterion with mother liquor discharging color.Mother liquor decolouring groove 14 is provided with the internal heating coil pipe, and heating coil feeds steam to guarantee the temperature of absorption.
Behind charcoal absorption impurity, squeeze into plate-and-frame filter press 11 with mother liquor decolouring pump 15.When just beginning,, discharge the mother liquor black in color probably because filter cake does not form.Therefore still flow back to mother liquor decolouring groove 14.Send into mother liquor settling bath 12 when mother liquor is after faint yellow, mother liquor settling bath 12 is a pyramidal structure suspension type storage tank for the bottom, and impurity in the mother liquor and gac are removed through settlement action at the mother liquor settling bath.The riser of also underproof mother liquor clear liquid through mother liquor settling bath 12 that decolour overflows back mother liquor decolouring groove.The mother liquor that decolours qualified flows into Recycling Mother Solution groove 13, and the qualified mother liquor in the Recycling Mother Solution groove 13 is squeezed into ammoniation reactor 1 through recycle pump 16 with mother liquor and reacted.
The mother liquor decolouring is operating as intermittent operation, if mother liquor is settled solution in the normal productive process, can decolour, and directly gets into next process and gets final product.The decolouring operation will be paid special attention to not remain in gac in the mother liquor, in order to avoid influence the urotropine quality.
Claims (3)
1. the decoloring equipment of a urotropine by using gas phase method mother liquor; It is characterized in that: comprise Recycling Mother Solution groove (13), mother liquor decolouring groove (14), plate-and-frame filter press (11) and mother liquor settling bath (12); Recycling Mother Solution groove (13) respectively with mother liquor decolouring groove (14), urotropine by using gas phase method preparation facilities in the mother liquor outlet be connected with ammoniation reactor (1); To squeeze into mother liquor decolouring groove (14) through the mother liquor of mother liquor outlet inflow Recycling Mother Solution groove (13) decolours; And the qualified mother liquor that will decolour is squeezed into ammoniation reactor (1); Mother liquor decolouring groove (14), plate-and-frame filter press (11) circulate successively with mother liquor settling bath (12) and are connected; Mother liquor the to be decoloured decolouring that in mother liquor decolours groove (14), plate-and-frame filter press (11) and mother liquor settling bath (12), circulates, mother liquor settling bath (12) is connected with Recycling Mother Solution groove (13), and the qualified mother liquor of decolouring is returned Recycling Mother Solution groove (13).
2. the decoloring equipment of urotropine by using gas phase method mother liquor according to claim 1 is characterized in that: described mother liquor decolouring groove (14) is the storage tank of band heating coil.
3. the decoloring equipment of urotropine by using gas phase method mother liquor according to claim 1 and 2 is characterized in that: the crystallization groove (2) in described Recycling Mother Solution groove (13) and the urotropine by using gas phase method preparation facilities is connected with mother liquor outlet on the whizzer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203780859U CN202246493U (en) | 2011-09-30 | 2011-09-30 | Device for decoloring urotropin mother liquor by using gas phase method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203780859U CN202246493U (en) | 2011-09-30 | 2011-09-30 | Device for decoloring urotropin mother liquor by using gas phase method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202246493U true CN202246493U (en) | 2012-05-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203780859U Withdrawn - After Issue CN202246493U (en) | 2011-09-30 | 2011-09-30 | Device for decoloring urotropin mother liquor by using gas phase method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202246493U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102503946A (en) * | 2011-09-30 | 2012-06-20 | 江苏恒茂机械制造有限公司 | Gas phase process decolorization method of methenamine mother liquor and decolorization device thereof |
-
2011
- 2011-09-30 CN CN2011203780859U patent/CN202246493U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102503946A (en) * | 2011-09-30 | 2012-06-20 | 江苏恒茂机械制造有限公司 | Gas phase process decolorization method of methenamine mother liquor and decolorization device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120530 Effective date of abandoning: 20140618 |
|
| RGAV | Abandon patent right to avoid regrant |