CN105254593A - Two-stage efficient comprehensive decolorizing tank for epoxidized soybean oil production - Google Patents
Two-stage efficient comprehensive decolorizing tank for epoxidized soybean oil production Download PDFInfo
- Publication number
- CN105254593A CN105254593A CN201510598713.7A CN201510598713A CN105254593A CN 105254593 A CN105254593 A CN 105254593A CN 201510598713 A CN201510598713 A CN 201510598713A CN 105254593 A CN105254593 A CN 105254593A
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- CN
- China
- Prior art keywords
- liquid
- soybean oil
- bleacher
- decolorizing
- tank body
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D301/00—Preparation of oxiranes
- C07D301/32—Separation; Purification
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D303/00—Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom
- C07D303/02—Compounds containing oxirane rings
- C07D303/38—Compounds containing oxirane rings with hydrocarbon radicals, substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D303/40—Compounds containing oxirane rings with hydrocarbon radicals, substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals by ester radicals
- C07D303/42—Acyclic compounds having a chain of seven or more carbon atoms, e.g. epoxidised fats
Abstract
The invention discloses a two-stage efficient comprehensive decolorizing tank for epoxidized soybean oil production. The two-stage comprehensive decolorizing tank comprises a decolorizing tank body, the periphery of the tank body is provided with a heat insulation jacket, a steam activity layer is arranged between the heat insulation jacket and the tank body, the inside of the decolorizing tank body is divided into an active carbon adsorption zone and a liquid decolorizing zone, and active carbon filtering layers with sequentially increased thicknesses are arranged in the active carbon adsorption zone; and a stirring shaft is transversely arranged in the liquid decolorizing zone, the stirring shaft is provided with a ring of connecting plates, each of the connecting plates is provided with an arc-shaped stirring vane, the arc-shaped stirring blade is provided with overflow holes, the left side of the outside of the tank body is provided with an alkali solution injection device, the right side of the outside of the tank body is provided with a hydrogen peroxide injection device, the alkali solution injection device and the hydrogen peroxide injection device respectively comprise an oblique injection tube, and the end portion of the oblique injection tube is provided with a liquid distributor. The two-stage efficient comprehensive decolorizing tank has the advantages of reasonable design, simple construction, low cost, thorough decolorizing, uniform liquid distribution, high quality of produced epoxidized soybean oil, uniform decolorizing, no lapping phenomenon and reasonable apparatus control.
Description
Technical field
The present invention relates to a kind of bleacher, particularly relate to the efficient comprehensive bleacher of a kind of epoxy soybean oil production secondary.
Background technology
Epoxy soybean oil is that a kind of widely used plasticizer for polyvinyl chloride is held concurrently stablizer, significantly can improve the thermo-optical stability of plastics, and epoxy soybean oil has nontoxic, transparent feature, be suitable for the softening agent doing packaging material for food, environmental protection, safety, healthy.
Epoxy soybean oil is the fatty acid ester blends of glycerine, main raw material is soybean oil, organic acid and hydrogen peroxide oxidation under the effect of catalyzer, the method that the production technique of existing conventional epoxy soybean oil mainly adopts alkali refining refining, refining is carried out with concentrated base low temperature process, by raw material, the impact of processing conditions, traditional technology control condition is except generating main glycerine fatty acid ester mixture, also can produce all kinds of impurity do not waited containing quantity, as phosphatide, protein, pigment, moisture etc., the existence of these materials affects epoxidation reaction and quality product undoubtedly, and the clearance of conventional process conditions to impurity is lower, and adopt legacy equipment minimizing technology mainly to adopt gac, or silica gel etc. is directly removed in tank body, cause the decolorizing effect of epoxy soybean oil poor, decolorizing effect can not be improved, but also a lot of impurity can be there is, fundamentally can not remove pigment.
Summary of the invention
For above-mentioned Problems existing, the present invention aims to provide the efficient comprehensive bleacher of a kind of epoxy soybean oil production secondary, this bleacher is reasonable in design, and simple structure is with low cost, decolouring thoroughly, liquid distribution is even, and the epoxy soybean oil quality product of production is high, and decolouring evenly, zero lap phenomenon, device control is reasonable.
To achieve these goals, the technical solution adopted in the present invention is as follows:
The epoxy soybean oil production efficient comprehensive bleacher of secondary, comprise decolouring tank body, described decolouring tank body is made up of cover and can body, insulation jacket is put in the pressed on ring winding of described tank body periphery, steam mobile layer is set between described insulation jacket and described can body, described steam mobile layer is connected with vapour pipe is through, described decolouring tank interior is divided into two regions, one of them is charcoal absorption district, another is liquid decoloration district, described charcoal absorption district is communicated with described liquid decoloration district and arranges, the activated carbon filter layer that thickness increases successively is provided with from top to bottom in described charcoal absorption district, every layer of described activated carbon filter layer is all arranged on grid, described liquid decoloration district inner transverse arranges stir shaft, described stir shaft radially distributes a circle web plate, each described web plate is all fixedly connected with arc agitating vane, each described arc agitating vane arranges some overflow weirs, the driving end of described stir shaft is in transmission connection by the driving mechanism being located at described bleacher external body, described can body outer left side arranges alkaline liquid injection device, outside right side arranges hydrogen peroxide injection device, described alkaline liquid injection device and described hydrogen peroxide injection device include vertical injection tube and inclination injection tube, described vertical injection tube is arranged on described bleacher external body, described inclination injection tube is arranged on described decolouring tank interior, and both are communicated with setting, and connect liquid distributor at the end winding support of each described inclination injection tube.
Further, described liquid distributor is disc structure, and is distributed with several fluid holes on described disc structure.
Further, described alkaline liquid injection device also comprises alkali liquid high-level groove, and described hydrogen peroxide injection device also comprises hydrogen peroxide header tank.
Further, the angle of inclination of described inclination injection tube is 30 °.
Further, in described alkali liquid high-level groove and described hydrogen peroxide header tank, all high level alarm is set.
Further, also filtering net is equipped with in described alkali liquid high-level groove and described hydrogen peroxide header tank.
Further, the conical feed opening with described decolouring tank body one is processed with bottom described charcoal absorption district.
Further, be also provided with stainless steel filter screen bottom described liquid decoloration district, the mesh of described stainless steel filter screen is 800-1000.
The invention has the beneficial effects as follows: first, the present invention adopts gac in same bleacher, to carry out two-level decolour process in conjunction with liquid decoloration agent simultaneously, the Be very effective of process, thoroughly, and first carry out first desolventing technology through gac, secondary decolourization process is carried out in conjunction with alkali lye again by hydrogen peroxide, the usage quantity of the liquid solvent not only reduced, and decrease the man-hour being used alone a kind of mode and carrying out decolouring, improve decolorizing efficiency, and liquid distributor is set in the end of inclination injection tube, the liquid of decolouring enters after liquid distributor through inclination injection tube and can increase liquid distribution face, the degree of mixing of raising and accelerating liquid and material, and the enlarged areas that liquid and material can distribute by liquid distributor, improve the homogeneity of diffusion, the second, activated carbon filter layer is the filtering layer adopting thickness to thicken successively, like this along with the increase of thickness, can improve treatment effect step by step, 3rd, the material crossed through gac stepwise disposal directly enters liquid decoloration region, and under the stirring action of stir shaft, abundant raising mixing effect, the stirring action of stir shaft realizes like this, stir shaft is horizontally disposed with, on stir shaft, a circle arc agitating vane is connected by web plate, arc agitating vane also arranges overflow weir, in the process stirred, arc agitating vane better can scrape material and liquid rolls, and improve rolling dynamics by arranging of overflow weir, liquid not only can pass through from the side of arc agitating vane, also can directly pass through from overflow weir, improve stirring dynamics, 4th, in order to coordinate the effect of liquid decoloration, tank body arranging insulation jacket and steam mobile layer, time by stirring again, intensification heating being carried out to material, contribute to improving decolorizing efficiency and effect.
Accompanying drawing explanation
Fig. 1 is schematic front view of the present invention.
Fig. 2 is the enlarged view of Fig. 1 D part.
Fig. 3 is the schematic diagram of liquid distributor of the present invention.
Fig. 4 is the schematic top plan view of stir shaft of the present invention.
Wherein: 1-decolours tank body, 1-1-cover, 1-2-can body, 2-insulation jacket, 3-steam mobile layer, 4-vapour pipe, 5-activated carbon filter layer, 6-alkali liquid high-level groove, 7-hydrogen peroxide header tank, the vertical injection tube of 8-, 9-inclination injection tube, 91-liquid distributor, the conical feed opening of 10-, 11-driving mechanism, 12-stir shaft, 13-feed chute, 14-discharge port, 15-web plate, 16-arc agitating vane, 17-overflow weir, 18-stainless steel filter screen.
Embodiment
In order to make those of ordinary skill in the art can better understand technical scheme of the present invention, below in conjunction with drawings and Examples, technical scheme of the present invention is further described.
With reference to the efficient comprehensive bleacher of a kind of epoxy soybean oil production secondary shown in accompanying drawing 1, the epoxy soybean oil production efficient comprehensive bleacher of secondary, comprise decolouring tank body 1, described decolouring tank body 1 is made up of cover 1-1 and can body 1-2, tank body and can body 1-2 removably connect, the parts being convenient to change tank interior keep in repair, described decolouring tank body 1 top is provided with feed chute 13, bottom is provided with discharge port 14, insulation jacket 2 is put in the pressed on ring winding of described tank body periphery, between described insulation jacket 2 and described can body 1-2, steam mobile layer 3 is set, described steam mobile layer 3 is connected with vapour pipe 4 is through, described decolouring tank body 1 inside is divided into two regions, one of them is charcoal absorption district, another is liquid decoloration district, the conical feed opening 10 with described decolouring tank body 1 one is processed with bottom described charcoal absorption district, be communicated with by described conical feed opening 10 between described charcoal absorption district with described liquid decoloration district and arrange, the activated carbon filter layer 5 that thickness increases successively is provided with from top to bottom in described charcoal absorption district, grid denser, the size dimension being dimensioned slightly smaller than activated carbon granule of its each grid, prevent activated carbon granule from falling down, form a large amount of impurity, and material be there is mobility can be slowly orderly to dirty through grid, every layer of described activated carbon filter layer 5 is all arranged on grid, material finally directly enters liquid decoloration district after activated carbon filter layer 5 adsorption bleaching that thickness is layer by layer different, described liquid decoloration district inner transverse arranges stir shaft 12, described stir shaft 12 radially distributes a circle web plate 15, web plate 15 is equidistant to be fixed on stir shaft 12, and enclose setting around stir shaft 12 1, each described web plate 15 is all fixedly connected with arc agitating vane 16, each described arc agitating vane 16 arranges some overflow weirs 17, the driving end of described stir shaft 12 is in transmission connection by the driving mechanism 11 being located at described decolouring tank body 1 outside, be fixedly supported on can body 1-2 by supporting plate bottom driving mechanism 11, improve the stability in the operational process of driving mechanism 11, described can body 1-2 outer left side arranges alkaline liquid injection device, outside right side arranges hydrogen peroxide injection device, stainless steel filter screen 18 is also provided with bottom described liquid decoloration district, the mesh 800-1000 of described stainless steel filter screen 18, material decoloured rear finally realize through stainless steel filter screen 18 last except miscellaneous operation, ensure the purity of epoxy soybean oil, to improve the quality of products.
Further, described alkaline liquid injection device comprises alkali liquid high-level groove 6, vertical injection tube 8 and inclination injection tube 9, described hydrogen peroxide injection device comprises hydrogen peroxide header tank 7, also vertical injection tube 8 and inclination injection tube 9 is comprised, hydrogen peroxide injection device is identical with the structure of described alkali liquid high-level groove 6, the vertical injection tube 8 of its hydrogen peroxide injection device, the vertical injection tube 8 of inclination injection tube 9 and described alkaline liquid injection device, inclination injection tube 9 structure is all identical, the angle of inclination of described inclination injection tube 9 is 30 °, 30 ° of settings of tilting are convenient to better make liquid running orbit parabolically eject, accelerating liquid and material short mix, liquid distributor 91 is connected at the end winding support of each described inclination injection tube 9, described liquid distributor 91 is disc structure, and several fluid holes are distributed with on described disc structure, when feed liquor, by ambient pressure, liquid is pressed in inclination injection tube 9 fast, and under the effect of the pressure by the even fluid of fluid hole on liquid distributor 91, all arrange high level alarm in alkali liquid high-level groove 6 and described hydrogen peroxide header tank 7, can throw in metering by liquid, accurate liquid delivery amount, is also equipped with filtering net in described alkali liquid high-level groove 6 and described hydrogen peroxide header tank 7.
Claims (8)
1. the epoxy soybean oil production efficient comprehensive bleacher of secondary, comprise decolouring tank body, described decolouring tank body is made up of cover and can body, it is characterized in that: put insulation jacket in the pressed on ring winding of described tank body periphery, steam mobile layer is set between described insulation jacket and described can body, described steam mobile layer is connected with vapour pipe is through, described decolouring tank interior is divided into two regions, one of them is charcoal absorption district, another is liquid decoloration district, described charcoal absorption district is communicated with described liquid decoloration district and arranges, the activated carbon filter layer that thickness increases successively is provided with from top to bottom in described charcoal absorption district, every layer of described activated carbon filter layer is all arranged on grid, described liquid decoloration district inner transverse arranges stir shaft, described stir shaft radially distributes a circle web plate, each described web plate is all fixedly connected with arc agitating vane, each described arc agitating vane arranges some overflow weirs, the driving end of described stir shaft is in transmission connection by the driving mechanism being located at described bleacher external body, described can body outer left side arranges alkaline liquid injection device, outside right side arranges hydrogen peroxide injection device, described alkaline liquid injection device and described hydrogen peroxide injection device include vertical injection tube and inclination injection tube, described vertical injection tube is arranged on described bleacher external body, described inclination injection tube is arranged on described decolouring tank interior, and both are communicated with setting, and connect liquid distributor at the end winding support of each described inclination injection tube.
2. the efficient comprehensive bleacher of epoxy soybean oil production secondary according to claim 1, is characterized in that: described liquid distributor is disc structure, and is distributed with several fluid holes on described disc structure.
3. the efficient comprehensive bleacher of epoxy soybean oil production secondary according to claim 1, it is characterized in that: described alkaline liquid injection device also comprises alkali liquid high-level groove, described hydrogen peroxide injection device also comprises hydrogen peroxide header tank.
4. the efficient comprehensive bleacher of epoxy soybean oil production secondary according to claim 1, is characterized in that: the angle of inclination of described inclination injection tube is 30 °.
5. the efficient comprehensive bleacher of epoxy soybean oil production secondary according to claim 3, is characterized in that: all arrange high level alarm in described alkali liquid high-level groove and described hydrogen peroxide header tank.
6. the efficient comprehensive bleacher of epoxy soybean oil production secondary according to claim 5, is characterized in that: be also equipped with filtering net in described alkali liquid high-level groove and described hydrogen peroxide header tank.
7. the efficient comprehensive bleacher of epoxy soybean oil production secondary according to claim 1, is characterized in that: be processed with the conical feed opening with described decolouring tank body one bottom described charcoal absorption district.
8. the efficient comprehensive bleacher of epoxy soybean oil production secondary according to claim 1, it is characterized in that: be also provided with stainless steel filter screen bottom described liquid decoloration district, the mesh of described stainless steel filter screen is 800-1000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510598713.7A CN105254593B (en) | 2015-09-21 | 2015-09-21 | Epoxidized soybean oil production efficiently integrates bleacher with two level |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510598713.7A CN105254593B (en) | 2015-09-21 | 2015-09-21 | Epoxidized soybean oil production efficiently integrates bleacher with two level |
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| Publication Number | Publication Date |
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| CN105254593A true CN105254593A (en) | 2016-01-20 |
| CN105254593B CN105254593B (en) | 2018-03-30 |
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