CN105289017A - Epoxy soybean oil drying device and drying method thereof - Google Patents
Epoxy soybean oil drying device and drying method thereof Download PDFInfo
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- CN105289017A CN105289017A CN201510769210.1A CN201510769210A CN105289017A CN 105289017 A CN105289017 A CN 105289017A CN 201510769210 A CN201510769210 A CN 201510769210A CN 105289017 A CN105289017 A CN 105289017A
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Abstract
The invention discloses an epoxy soybean oil drying device and a drying method thereof. The apparatus comprises a drying tank, a steam outlet and a feed inlet are arranged on the drying tank, a discharge hatch is arranged below the drying tank, a material distributor connected to the feed inlet is arranged on an upper segment of the drying tank, a vacuum pipeline used for dewatering the material under negative pressure is connected with the steam outlet, a filling device connected with the material distributor is arranged on an intermediate segment in the drying tank and is used for dispersing the material; and a heater is used for heating and drying the material, which is positioned below the filling device and arranged at a lower segment in the drying tank. The drying device is capable of uniformly distributing the materials through the material distributor, so that a vaporization rate can be increased by heating the material, a problem that equipment cannot continuously operate due to material coking and filling material obstruction can be solved, equipment maintenance cost is reduced, production efficiency is obviously enhanced, product quality is stabilized, and energy can be saved.
Description
Technical field
The present invention relates to a kind of drying device and drying means of epoxidized soybean oil.
Background technology
Epoxidized soybean oil (ESO) belongs to epoxy plasticiser, that a kind of widely used polyvinyl chloride (PVC) plasticizer is held concurrently stabilizing agent, there is good light and heat stabilization, there is resistance to extraction compared with ester plasticizer, resistance to migration, resistance to volatilization, the advantages such as the good and degradable of intermiscibility, it is the epoxy plasticiser that uniquely can be used for packaging material for food, it is as the favorable substitutes of phthalic ester plasticizer, meet European Union RoHS environmental protection instruction and U.S. FDA food additives rule completely, cause showing great attention to of increasing Plastics Processing Industry and plasticizer production enterprise, current, the annual production of China's phthalic ester plasticizer and consumption figure all account for more than 80% of plasticizer total amount, epoxidized soybean oil (ESO) is less than 10%, and in the U.S., its consumption figure is only second to phthalic acid ester and fatty group dibasic acid plasticizer, occupy the 3rd.Along with the aggravation of the energy and environmental crisis, the exploitation of renewable resource become study hotspot, and therefore, exploitation epoxidized soybean oil (ESO) has vast potential for future development.
The existing drying process being applied to epoxidized soybean oil is expansion drying, its device is flash vessel, device is 800 millimeters by diameter, it is highly the round can body composition of 2500 millimeters, charging and vacuum pipeline are arranged at top, discharging pipeline is arranged at bottom, observation panel is had in the middle of tank body, inside there are shower nozzle and baffle plate, its operation principle is: material pumps into flash tank after being pressurizeed by oil pump, certain pressure is maintained at shower nozzle place, material is atomized spray rapidly, moisture now in material rapid vaporization under vacuum conditions, discharged by vacuum pipeline, major part material freely falls at the bottom of tank, part material freely falling body to baffle plate is upspring again and is scattered, remaining moisture content in material is by secondary vaporizing, discharged by vacuum tube, this device due to shower nozzle be atomized time for ensure atomizing effect, at shower nozzle leading portion, the electric oil pump pressurizeed need be installed and consume energy to obtain enough pressure, cause the increase of cost, because its spray nozzle pore size is fixed, so that be not easy to the regulation and control of output in actual production, output hour atomizing effect difference, moisture drying is not thorough, and product quality is defective, when output is large, nozzle outlet pressure enlarges markedly, cause the stability of a system poor, material is atomized into a superfine little material, can splash away from vacuum pipeline, cause damage, and inwall easily forms one deck coking material, coking material is easy blocking pipe not only, and the flowing space of material is narrowed, simultaneously drying device inwall also becomes coarse, easily causes drying device can not the problem of continuous service.Generally, within 2 ~ 4 months, just need stopping production coke cleaning, make to need in the inside the plan stopping production overhaul life to carry out stopping production coke cleaning unplanned for several times, not only increase the maintaining cost of equipment, and directly cause huge production suspension induced losses and add a large amount of coke cleaning sewage, energy consumption is higher, and product yield is low and quality is unstable, and cost is high.
Summary of the invention
In order to solve above-mentioned the deficiencies in the prior art, the invention provides a kind of drying device of epoxidized soybean oil production, the material distributor of material through epimere is distributed on the sizer in stage casing by uniformly, increase the specific area of material to greatest extent, reduce wall stream, improve boil-off rate, acceleration moisture evaporates, the further heated material of hypomere is to improve vaporization rate, solve material coking, blocking filler, cause equipment can not the problem of continuous service, decrease equipment maintenance cost, enhance productivity significantly, stabilized product quality and save energy.Present invention also offers a kind of drying means of epoxidized soybean oil.
Technical problem to be solved by this invention is achieved by the following technical programs:
A drying device for epoxidized soybean oil, comprising:
One dry tank body;
Be arranged on the steam (vapor) outlet above described dry tank body and charging aperture;
Be arranged on the discharging opening below described dry tank body;
Be arranged on epimere in described dry tank body and the material distributor be connected with charging aperture;
The vacuum pipe being used for material being carried out to negative pressure dehydration is connected with steam (vapor) outlet;
Be arranged on stage casing in described dry tank body and the sizer be connected with described material distributor, for further dispersed material;
Be arranged on hypomere in described dry tank body, be positioned at the heater below described sizer, for carrying out heat drying again to material.
Further, described heater comprises the heat source stream siphunculus be distributed on described dry tank body hypomere tube wall, the top of described dry tank body hypomere is provided with the thermal source inlet be connected with described heat source stream siphunculus, and the bottom of described dry tank body hypomere is provided with the thermal source outlet be connected with described heat source stream siphunculus.
Further, the supervising device for control heater is also comprised.
Further, described dry tank body hypomere is provided with the temperature sensor be connected with supervising device.
Further, described dry tank base is provided with agitating device.
Further, described vacuum pipe is provided with spittle trap.
Further, described spittle trap comprises trapping tank body, the spittle air inlet being arranged on described trapping tank body side, the gas outlet being separately positioned on described trapping tank body top and bottom and trapping solution recovery port, is arranged in this trapping tank body the trapping filler be positioned at above described spittle air inlet.
A drying means for epoxidized soybean oil, is applied to drying device as claimed in claim 1, comprises the following steps:
(1) negative pressure drying step: open the vacuum plant be connected with vacuum pipe, negative pressure is carried out to the material being delivered to material distributor and dehydrates;
(2) filler step: material is evenly distributed on sizer through material distributor, wetting filling surface, with sufficient dispersed material;
(3) drying steps is again heated: the material after filler flows downward and enters heater, by heating material to preset temperature.
Further, described step (3) also comprises the step starting agitating device.
Further, described preset temperature is 105 ~ 115 DEG C.
The present invention has following beneficial effect:
The material distributor of material through epimere is distributed on the sizer of interruption by this drying device uniformly, increase the specific area of material to greatest extent, reduce wall stream, improve boil-off rate, accelerate moisture evaporation, the further heated material of hypomere is to improve vaporization rate, solve material coking, blocking filler, cause equipment can not the problem of continuous service, decrease equipment maintenance cost, enhance productivity significantly, stabilized product quality and save energy;
Vacuum pipe is also provided with spittle trap, superfine little oily foam trapping can be reclaimed, to reduce the loss of material and to protect environment;
Respectively liquid level sensor is housed on the top of dry tank body hypomere and bottom, the height of material in tank liquid level can be got information about in real time, and be provided with two position warning, avoid material and too much cause excessive tank, the situation of very few damage heater;
The agitating device arranged in dry tank base makes material can better uniformly transfer heat, reduces the possibility of material coking further;
This drying device adds automatization controlling device, greatly can reduce the labour intensity of workman and ensure operating efficiency and the quality of production.
Accompanying drawing explanation
Fig. 1 is the structural representation of drying device of the present invention;
Fig. 2 is the axonometric drawing of material distributor in the present invention;
Fig. 3 is the plane of sizer in the present invention;
Fig. 4 is the sectional view at A-A place in Fig. 3;
Fig. 5 is the structural representation of spittle trap in the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention will be described in detail.
Please refer to Fig. 1, which show a kind of drying device of epoxidized soybean oil, this drying device comprises dry tank body 1 and is arranged on steam (vapor) outlet 2, charging aperture 3, discharging opening 4, material distributor 5, vacuum pipe, sizer 6 and the heater 7 on dry tank body 1; Wherein, described steam (vapor) outlet 2 is arranged on the top of described dry tank body 1, is preferably top center, so that the moisture etc. in dry run in material evaporates away; Described charging aperture 3 is arranged on described dry tank body 1 side surface upper part, to carry material to be dried; Described discharging opening 4 is arranged on the bottom of described dry tank body 1, is preferably bottom centre, and the material after convenient and dry is discharged collection and entered next process; Described material distributor 5 is arranged on the inner upper portion of described dry tank body 1, and be positioned at the below of described charging aperture 3, described material distributor 5 is provided with multiple riser 51 of passing through for belows steam and several cloth sieve apertures 52, it is for being evenly distributed to described sizer 6 by material; Described vacuum pipe is arranged on described steam (vapor) outlet 2, for carrying out negative pressure dehydration to material; Described sizer 6 is arranged on described dry tank body 1 inner stage casing part, to be positioned at below described material distributor 5 and to be attached thereto, for receiving the material after being uniformly distributed by described material distributor 5, further dispersed material, increase the specific area of material, accelerate moisture evaporation; Described heater 7 is arranged on the inner hypomere part of described dry tank body 1, is positioned at below described sizer 6, to receive the material after flowing through described sizer 6, carries out heat drying more further, to improve vaporization rate, avoid material coking to material.
Please refer to Fig. 5, particularly, described vacuum pipe is also provided with one or more spittle traps 8, superfine little oily foam trapping can be reclaimed, to reduce loss and the protection of the environment of material; Described spittle trap 8 comprises trapping body 81, the spittle air inlet 82 being arranged on this trapping tank body 81 and gas outlet 83 and trapping solution recovery port 84, the trapping filler 85 be arranged in this trapping tank body 81, described spittle air inlet 82 is arranged on the side of described trapping tank body 81, described gas outlet 83 is arranged on the top of described trapping tank body 81, described trapping solution recovery port 84 is arranged on the bottom of described trapping tank body 81, and described trapping filler 85 is positioned at the top of described spittle air inlet 82.Described trapping filler 85 has multiple selection mode, can be such as intensive silk screen, also can be other structured packings, as long as trapping filler 85 has concentrated voids structure, and can oily foam in captured gas.
Preferably, described dry tank body 1 is provided with circulation port with described charging aperture 3 corresponding position, and it is connected with spittle trap 8, for the material of recovery oil foam is re-started drying.During specific implementation, if material does not also reach dry requirement after the drying that discharging opening 4 is collected, again dry by described circulation port.
Preferably, as shown in Figure 2, described cloth hole 52 shape is generally circle, certainly also triangular form, quadrangle or other profiled holes can be set as required, the shape being distributed in the cloth sieve aperture 52 on described material distributor 5 can be identical, also can be used through multi-form arrangement by difform through hole.Described sizer 6 preferably but be not defined as ripple silk net sizer 6, as shown in Figure 3,4.
Preferably, described heater 7 is for being evenly distributed on the heat source stream siphunculus 71 on described dry tank body 1 hypomere tube wall, the top of described dry tank body 1 hypomere is provided with the thermal source inlet 72 be connected with described heat source stream siphunculus 71, the bottom of described dry tank body 1 hypomere is provided with the thermal source outlet 73 be connected with described heat source stream siphunculus 71, and described thermal source inlet 72 and thermal source outlet 73 are positioned at the relative both sides of described dry tank body 1.Described thermal source is preferably heating agent.Described heater 7 can be also resistive heater, but is not limited to this.
During specific implementation, be also provided with agitating device 9 bottom described dry tank body 1, preferably but be not defined as magnetic force or motor stirrer, make material can better uniformly transfer heat, material be heated evenly, and reduces the possibility of material coking further.
In the present invention, in order to reduce the labour intensity of workman further and increase work efficiency and work quality, described drying device also comprises the supervising device for this drying device of Automated condtrol, and it is connected with heater 7.Preferably, described drying device also comprises temperature sensor 74, two liquid level sensors 75, vacuum transducer 76, control valves of being connected with described supervising device respectively, described temperature sensor 74 is arranged on the middle part of described dry tank body 1 hypomere, for detecting the temperature conditions of dry tank body 1 hypomere; Described liquid level sensor 75 is arranged on top and the bottom of described dry tank body 1 hypomere respectively, can get information about the height of material liquid level in tank in real time, also can arrange two position and report to the police, avoid material and too much cause excessive tank, the situation of very few damage heater 7; Described control valve is preferably electric control valve, is arranged on described thermal source inlet 72 place, and for regulating the thermal source flow entering heat source stream siphunculus 71, the predetermined temperature arranged in conjunction with described supervising device is with the operating temperature of control heater 7.
During specific implementation, described charging aperture 3 can arrange a control valve, to control the uninterrupted of material.Conveniently see drying the drying regime of the material in tank body 1, can arrange a pair visor between dry tank body 1 stage casing and hypomere.
Described drying device also comprises the manhole 10 being arranged on described dry tank body 1 epimere, and its effect is parts and the maintenance in the future of being convenient to install drier inside; Described drying device also comprises the hand hole 11 being separately positioned on sizer 6 two ends, and its effect is the coking situation of being convenient in the future observe filler, thus judges whether to need cleaning.
The embodiment of the present invention also provides a kind of drying means of epoxidized soybean oil, and it is applied to the drying device that above-described embodiment provides, and comprises the steps:
(1) negative pressure drying step: open the vacuum plant that is connected with vacuum pipe, to make the absolute pressure≤8Kpa in equipment, material is delivered to material distributor through charging aperture and is carried out negative pressure and dehydrate;
(2) filler step: material is evenly distributed on sizer through material distributor, wetting filling surface, with sufficient dispersed material;
(3) heat drying steps again: the material after filler flows downward and enters heater, with by heating material to 105 ~ 115 DEG C, improve vaporization rate further and reduce material coking possibility; Agitating device can be started simultaneously, mixing speed preferably but be not defined as 250rpm/min, material is heated evenly.
During specific implementation, the flow of charging is by the governor valve control at charging aperture place; Transfer to described supervising device by the temperature signal of temperature sensor (comprise but be not defined as platinum resistance thermometer sensor) Real-time Collection material real-time temperature through shielded conductor and show actual temperature, and contrast set temperature value and carry out control electric control valve, regulate the flow of thermal source to control the technological temperature of material, realize the working condition of automatic monitoring heater, ensure the temperature stabilization that heating is dry again; Material liquid level height situation in liquid level sensor real-time monitoring of tank, and two position warning message is set, avoid material too much to cause excessive tank, the situation of very few damage heater.
Before this dry plant running, first start vacuum plant, with the absolute pressure≤8Kpa in guarantee equipment, enter after drying device hypomere until material, start magnetic stirring apparatus, open the control valve at thermal source inlet place and heater-combining to heating material to technological temperature (105 ~ 115 DEG C), this drying device can regulate and control output preferably in actual production, the quality of product can not be affected in 2 tons to 5 tphs range of flows, and further heated material is to improve vaporization rate, solve material coking, blocking filler, cause equipment can not the problem of continuous service, decrease equipment maintenance cost, enhance productivity significantly, stabilized product quality and save energy.
The epoxidized soybean oil of drying device of the present invention drying acquisition and prior art and GB is adopted to contrast, obtain following performance indications and cost consumption contrast, except dry run in epoxidized soybean oil production technology, other techniques are prior art, do not repeat them here.
| Project | The present invention | Prior art | National standard |
| Epoxide number (%) | ≥6.0 | ≥5.6 | ≥6.0 |
| Iodine number (gl/100g) | ≤3.0 | ≤8.0 | ≤6.0 |
| Acid number (mg KOHg-1) | ≤0.5 | ≤0.5 | ≤0.6 |
| Heat endurance (%) | ≥5.7 | ≥5.0 | ≥5.0 |
| Heating loss (%) | ≤0.2 | ≤0.3 | ≤0.3 |
| Color and luster (pt-co colorimetric number) | ≤150 | ≤200 | ≤400 |
| Process water consumption (t) | 0.5 | 8 | |
| Stopping production coke cleaning period (or maintenance cycle) | More than 6 months | 1-2 month |
Drying device effect of the present invention is that the material separated by centrifuge carries out negative pressure dehydration, heats up dry again, reaches dry effect and solves the problem of the easy coking of prior art drying device.In actual use, material is through the material distributor of epimere, be distributed to uniformly on sizer, increase the specific area of material to greatest extent, reduce wall stream, improve boil-off rate, accelerate moisture vaporization, compared with prior art, under comparable conditions, can enhance productivity significantly, control the heating loss of product, stabilized product quality, save energy, this drying device to heat and in conjunction with agitating device due to hypomere again, material can be made to be heated evenly, the coking of further solution material, blocking sizer, cause equipment can not the problem of continuous service, decrease equipment maintenance cost.In actual production process, due to the input of Automated condtrol, not only greatly reduce the labour intensity of workman, and ensure work quality and increase work efficiency.
The above embodiment only have expressed embodiments of the present invention; it describes comparatively concrete and detailed; but therefore can not be interpreted as the restriction to the scope of the claims of the present invention; in every case the technical scheme adopting the form of equivalent replacement or equivalent transformation to obtain, all should drop within protection scope of the present invention.
Claims (10)
1. a drying device for epoxidized soybean oil, is characterized in that, comprises
One dry tank body;
Be arranged on the steam (vapor) outlet above described dry tank body and charging aperture;
Be arranged on the discharging opening below described dry tank body;
Be arranged on epimere in described dry tank body and the material distributor be connected with charging aperture;
The vacuum pipe being used for material being carried out to negative pressure dehydration is connected with described steam (vapor) outlet;
Be arranged on stage casing in described dry tank body and the sizer be connected with described material distributor, for further dispersed material;
Be arranged on hypomere in described dry tank body, be positioned at the heater below described sizer, for carrying out heat drying again to material.
2. the drying device of epoxidized soybean oil according to claim 1, it is characterized in that, described heater comprises the heat source stream siphunculus be distributed on described dry tank body hypomere tube wall, the top of described dry tank body hypomere is provided with the thermal source inlet be connected with described heat source stream siphunculus, and the bottom of described dry tank body hypomere is provided with the thermal source outlet be connected with described heat source stream siphunculus.
3. the drying device of epoxidized soybean oil according to claim 1, is characterized in that, also comprises the supervising device for control heater.
4. the drying device of epoxidized soybean oil according to claim 3, is characterized in that, described dry tank body hypomere is provided with the temperature sensor be connected with supervising device.
5. the drying device of epoxidized soybean oil according to claim 1, is characterized in that, described dry tank base is provided with agitating device.
6. the drying device of epoxidized soybean oil according to claim 1, is characterized in that, described vacuum pipe is provided with spittle trap.
7. the drying device of epoxidized soybean oil according to claim 6, it is characterized in that, described spittle trap comprises trapping tank body, the spittle air inlet being arranged on described trapping tank body side, the gas outlet being separately positioned on described trapping tank body top and bottom and trapping solution recovery port, is arranged in this trapping tank body the trapping filler be positioned at above described spittle air inlet.
8. a drying means for epoxidized soybean oil, is applied to drying device as claimed in claim 1, it is characterized in that, comprise the following steps:
Negative pressure drying step: open the vacuum plant be connected with vacuum pipe, negative pressure is carried out to the material being delivered to material distributor and dehydrates;
Filler step: material is evenly distributed on sizer through material distributor, wetting filling surface, with sufficient dispersed material;
Heat drying steps again: the material after filler flows downward and enters heater, by heating material to preset temperature.
9. the drying means of epoxidized soybean oil according to claim 8, is characterized in that, described step (3) also comprises the step starting agitating device.
10. the drying means of epoxidized soybean oil according to claim 8, is characterized in that, described preset temperature is 105 ~ 115 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510769210.1A CN105289017A (en) | 2015-11-12 | 2015-11-12 | Epoxy soybean oil drying device and drying method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510769210.1A CN105289017A (en) | 2015-11-12 | 2015-11-12 | Epoxy soybean oil drying device and drying method thereof |
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| Publication Number | Publication Date |
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| CN105289017A true CN105289017A (en) | 2016-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510769210.1A Pending CN105289017A (en) | 2015-11-12 | 2015-11-12 | Epoxy soybean oil drying device and drying method thereof |
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| Country | Link |
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| CN (1) | CN105289017A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108095158A (en) * | 2017-12-25 | 2018-06-01 | 太仓市宝马油脂设备有限公司 | A kind of modulating system of energy-saving soybean tempering tower |
| CN113053469A (en) * | 2021-04-12 | 2021-06-29 | 江苏丰尚智能科技有限公司 | Method and device for predicting moisture of drying material, computer equipment and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA859023A (en) * | 1970-12-22 | The Whitlock Manufacturing Company | Method and apparatus for drying urea solutions | |
| CN2282911Y (en) * | 1996-12-21 | 1998-06-03 | 徐先盛 | Low temp. vacuum dewaterer |
| CN102250693A (en) * | 2011-06-21 | 2011-11-23 | 广州市新锦龙实业有限公司 | Process flow for preparing epoxidized soybean oil by using crude soybean oil |
| CN205084423U (en) * | 2015-11-12 | 2016-03-16 | 佛山市高明晟俊塑料助剂有限公司 | Epoxidized soybean oil's drying device |
-
2015
- 2015-11-12 CN CN201510769210.1A patent/CN105289017A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA859023A (en) * | 1970-12-22 | The Whitlock Manufacturing Company | Method and apparatus for drying urea solutions | |
| CN2282911Y (en) * | 1996-12-21 | 1998-06-03 | 徐先盛 | Low temp. vacuum dewaterer |
| CN102250693A (en) * | 2011-06-21 | 2011-11-23 | 广州市新锦龙实业有限公司 | Process flow for preparing epoxidized soybean oil by using crude soybean oil |
| CN205084423U (en) * | 2015-11-12 | 2016-03-16 | 佛山市高明晟俊塑料助剂有限公司 | Epoxidized soybean oil's drying device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108095158A (en) * | 2017-12-25 | 2018-06-01 | 太仓市宝马油脂设备有限公司 | A kind of modulating system of energy-saving soybean tempering tower |
| CN108095158B (en) * | 2017-12-25 | 2023-08-25 | 太仓市宝马油脂设备有限公司 | Modulation system of energy-saving soybean tempering tower |
| CN113053469A (en) * | 2021-04-12 | 2021-06-29 | 江苏丰尚智能科技有限公司 | Method and device for predicting moisture of drying material, computer equipment and storage medium |
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Application publication date: 20160203 |