CN202829908U - Novel polyether polyol reactor - Google Patents
Novel polyether polyol reactor Download PDFInfo
- Publication number
- CN202829908U CN202829908U CN 201220483392 CN201220483392U CN202829908U CN 202829908 U CN202829908 U CN 202829908U CN 201220483392 CN201220483392 CN 201220483392 CN 201220483392 U CN201220483392 U CN 201220483392U CN 202829908 U CN202829908 U CN 202829908U
- Authority
- CN
- China
- Prior art keywords
- kettle
- polyether polyol
- reactor
- novel polyether
- stir shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a reactor and particularly relates to a novel polyether polyol reactor which comprises a reactor body. The upper part of the reactor body is provided with a raw material inlet, an instrument port and a man hole. The novel polyether polyol reactor is characterized in that the top of the reactor body is additionally provided with a safety valve, the interior is provided with a stirring device, and the bottom of the reactor body is provided with a finished-product outlet, wherein the stirring device comprises a stirring shaft, the upper part of the stirring shaft is connected with a motor, the middle part of the stirring shaft is provided with a folding-blade type stirring paddle and a frame-plate type stirring paddle in sequence from top to bottom, and the lower part is fixed on the reactor body through a bearing. The novel polyether polyol reactor provided by the utility model is characterized by time saving, high yield, high quality, low consumption, security and environment friendliness, has high reaction efficiency and improves production efficiency.
Description
Technical field
The utility model relates to reactor, is specifically related to a kind of novel polyether polyol reactor.
Background technology
Polyether glycol (being called for short PPG) is to be made through esterification in the presence of catalyzer by initiator (compound that contains active hydrogen group) and oxyethane (EO), propylene oxide (PO) etc.PPG commonly used mainly contains: polypropylene glycol type, polytetrahydrofuran diol type, graft type polyether glycol, heterocyclic modified polyether glycol etc.
But there are the series of problems such as reaction efficiency is low, heat conduction is slow, agitator design is unreasonable in existing reactor, thereby causes production efficiency low.
The demand of China's urethane is keeping the rapid growth impetus always, therefore improves the structure of polyether glycol reactor, and improving reaction efficiency is the problem that contract need solve in the present industry.
Summary of the invention
According to above deficiency of the prior art, the technical problems to be solved in the utility model is: provide a kind of reaction efficiency high novel polyether polyol reactor.
The technical scheme that its technical problem that solves the utility model adopts is:
Described novel polyether polyol reactor, comprise kettle, feed(raw material)inlet, instrument mouth, manhole are offered in kettle top, safety valve is set up at the kettle top, and whipping appts is set in the kettle, and autoclave body bottom is offered product outlet, described whipping appts comprises stir shaft, stir shaft top connects motor, and the stir shaft middle part sets gradually hinged joint stirring rake and deckle board formula stirring rake from top to bottom, and the stir shaft bottom is fixed on the kettle by bearing.
Attached with frequency converters on the described motor.
Described kettle length-to-diameter ratio is 1.35.
Middle and upper part, the described kettle outside arranges 4 journal stirrups, and 4 journal stirrups are positioned on the identical horizontal plane and uniform setting.
During work, raw material enters from the feed(raw material)inlet, and through the mating reaction of hinged joint stirring rake and deckle board formula stirring rake, the reaction times shortens, and reaction efficiency improves.
The utility model design process is as follows:
1, design variable
(1) this reactor is in the polyethers production process, kettle reaches the bottom outward needs subpanel pipe clamp cover, the instrumentation taps such as the imports such as the required material of equipment, solvent, catalyzer and tensimeter, thermometer, safety valve can only be arranged on the top cover, only have material outlet to be arranged in lower housing portion.In addition, stir shaft and shaft sealing device must be arranged in the equipment top, thereby the mixer design difficulty is very big.Material carries out esterification in the equipment, has polyethers by product crystallization of calcium chloride particle to produce in the reaction process.The generation of solid particulate on the agitating vane impact greatly.Reactor is supported on the floor by four journal stirrups (hanging support) during design.During consideration work, the temperature difference reaches-10 ℃～300 ℃, and the temperature difference has larger impact to the reaction kettle body weld seam, has increased thermal expansion buffering joint at kettle, and the protection weld seam does not ftracture.The reactor main design parameters is as shown in table 1.
Table 1 reactor main design parameters
(2) appropriate design agitator
This agitator is because blade area is large, and rotating speed is lower, and it strengthens axial mixing by the effect of baffle plate.Its blade tips is longer, and near the turbulence whirlpool district the blade is larger, is conducive to dispersion and material and is difficult for being sunken at the bottom of the still.This agitator can produce larger circulation turbulent flow in the situation that power of agitator is identical, and mass-and heat-transfer is effective.When reaching same mixing effect, the power that its consumes is less.
According to physical property such as the characteristics of different production phases of polyethers and material viscosity proportions, the agitator of double-deck different types is adopted in design, and the upper strata is for opening hinged joint slurry formula, and lower floor is the deckle board formula.Its design formula is:
D/T=0.53B/T=0.64W/T=0.1
In the formula: D is diameter of stirring paddle; T is the still internal diameter; B is the stirring rake height; W is the paddle width
(3) appropriate design reactor structure
Design kettle length-to-diameter ratio is L/D=1.35, the inner coil pipe height account for kettle high 2/3, reaction kettle body is designed with 4 bearing ears, is convenient to the installation of reaction kettle body.Agitating vane and reaction kettle body design advantage: speed of response is accelerated, and shortens the production cycle; Can bear High Temperature High Pressure, the kettle complete processing is good, and when the still internal-external temperature difference was large, thermal expansion stress was little, the work-ing life of protection weld seam.
In addition, reactor external jacket top is provided with safety valve, if the reaction superpressure, safety valve is take-off at once, and rapidly pressure release can ensure workman's personnel safety in the reactor.
Improve automatization level, accomplish energy-conserving and environment-protective safe and reliable to operation, the design automatic Measuring Instruments that technique is selected is installed in the kettle middle part by flange sleeve, can go out with automatic analysis temperature and the pressure of material in the still by computer, data are accurate, follow the tracks of in time, these mixer design means are advanced, still belong to the first time in the chemical industry design at home.
According to the different steps that polyethers is produced, the characteristics that mixing speed is different, attached with frequency converters adopts the frequency conversion stepless time adjustment, and the electric motor starting electric current is little, and is low in energy consumption, saved electric energy, and the product earning rate improves save energy.
System adopts the automatic pneumatic variable valve and plugs into computer, has realized continuous automatic production, has greatly alleviated workman's manipulation strength.
2, operation result
80m
3The polyether reactant still is once succeeded in the test run, and since going into operation, has operated steadily safe and reliable time-saving energy-saving.Compare with other small-sized reactors, the product high-grade-goods rate is high.Except normal maintenance was stopped, accident never appearred in equipment, highlights the superiority of large chemical equipment, and comprehensive whole year production running condition sees Table 2, and the each economic target contrast sees Table 3.
Table 2 whole year production running condition summary sheet
| Sequence number | Still volume (m 3） | Temperature rise (℃) | Reaction times (h) | Cooling time (h) |
| 1 | 80 | 4 | 23～25 | 28 |
| 2 | 20 | 4.5 | 25～27 | 30 |
| 3 | 14 | 5 | 26～27 | 21 |
| 4 | 6 | 4 | 25.5～27 | 27 |
The annual each economic target of table 3 gathers
| Sequence number | Still volume (m 3） | Power consumption (KW.h/t) | Starting material unit consumption (Kg) | Man-hour (people/t) | Easily-consumed products (unit/t) |
| 1 | 80 | 42 | 1058.4 | 0.000178 | 10.87 |
| 2 | 20 | 48 | 1067.5 | 0.000549 | 12.67 |
| 3 | 14 | 43 | 1065.8 | 0.000446 | 12.98 |
| 4 | 6 | 52 | 1064.6 | 0.000449 | 12.88 |
3, economic analysis
By the comparative analysis of his-and-hers watches 2, table 3, calculation result is as follows: use separate unit 80m
3Reactor has shortened nearly 3h than other separate unit reactor production cycle; Every 80m
3Reactor the whole year than other reactors more and is produced polyether glycol 1000t, creates more than 1,000 ten thousand yuan of the output values more.Can save 3,500,000 yuan of maintenance costs of fund the whole year.Similar other little volume device is compared, it have save time, the advantage such as high yield, high-quality, low consumption, safety and environmental protection, that up to now domestic generic reaction still design is maximum and use is the most successful, for design and the use of other types chemical reaction still provides valuable experience, receive huge economic benefit.The development of this reactor is gone into operation, so that the production capacity of Chinese polyether glycol further gets a promotion, basically can meet the need of market, and has realized design effect, has accomplished to reach to produce to reach effect.
The beneficial effect that the utility model has is:
The novel polyether polyol reactor that the utility model provides have save time, the characteristics of high yield, high-quality, low consumption, safety and environmental protection, its reaction efficiency is high, has improved production efficiency.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Among the figure: 1, frequency transformer; 2, motor; 3, manhole; 4, journal stirrup; 5, steam-in; 6, refrigerant mouth; 7, traverse baffle; 8, deckle board formula stirring rake; 9, product outlet; 10, bearing; 11, stir shaft; 12, kettle; 13, hinged joint stirring rake; 14, instrument mouth; 15, safety valve; 16, feed(raw material)inlet.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further:
As shown in Figure 1, novel polyether polyol reactor described in the utility model, comprise kettle 12, feed(raw material)inlet 16 is offered on kettle 12 tops, instrument mouth 14, manhole 3, safety valve 15 is set up on kettle 12 tops, the kettle 12 interior whipping apptss that arrange, product outlet 9 is offered in kettle 12 bottoms, described whipping appts comprises stir shaft 11, stir shaft 11 tops connect motor 2, stir shaft 11 middle parts set gradually hinged joint stirring rake 13 and deckle board formula stirring rake 8 from top to bottom, and stir shaft 11 bottoms are fixed on the kettle 12 by bearing 10, and steam-in 5 and refrigerant mouth 6 are set on the kettle 12, attached with frequency converters 1 on the motor 2, kettle 12 length-to-diameter ratios are 1.35, and middle and upper part, kettle 12 outside arranges 4,4 journal stirrups 4 of 4 journal stirrups and is positioned on the identical horizontal plane and uniform setting.Kettle 12 shell sides arrange traverse baffle 7.
During work, raw material 16 enters from the feed(raw material)inlet, and through the mating reaction of hinged joint stirring rake 13 and deckle board formula stirring rake 8, the reaction times shortens, and reaction efficiency improves.The novel polyether polyol reactor that the utility model provides have save time, the characteristics of high yield, high-quality, low consumption, safety and environmental protection, its reaction efficiency is high, heat conduction is rapid, has improved production efficiency.
Claims (5)
1. novel polyether polyol reactor, comprise kettle (12), feed(raw material)inlet (16) is offered on kettle (12) top, instrument mouth (14), manhole (3), it is characterized in that: safety valve (15) is set up at kettle (12) top, kettle arranges whipping appts in (12), product outlet (9) is offered in kettle (12) bottom, described whipping appts comprises stir shaft (11), stir shaft (11) top connects motor (2), stir shaft (11) middle part sets gradually hinged joint stirring rake (13) and deckle board formula stirring rake (8) from top to bottom, and stir shaft (11) bottom is fixed on the kettle (12) by bearing (10).
2. novel polyether polyol reactor according to claim 1 is characterized in that: the upper attached with frequency converters (1) of described motor (2).
3. novel polyether polyol reactor according to claim 1, it is characterized in that: described kettle (12) length-to-diameter ratio is 1.35.
4. novel polyether polyol reactor according to claim 1 is characterized in that: middle and upper part, described kettle (12) outside arranges 4 journal stirrups (4), and 4 journal stirrups (4) are positioned on the identical horizontal plane and uniform setting.
5. novel polyether polyol reactor according to claim 1 is characterized in that: in described kettle (12) shell side traverse baffle (7) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220483392 CN202829908U (en) | 2012-09-20 | 2012-09-20 | Novel polyether polyol reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220483392 CN202829908U (en) | 2012-09-20 | 2012-09-20 | Novel polyether polyol reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202829908U true CN202829908U (en) | 2013-03-27 |
Family
ID=47941663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220483392 Expired - Fee Related CN202829908U (en) | 2012-09-20 | 2012-09-20 | Novel polyether polyol reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202829908U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104096527A (en) * | 2014-07-23 | 2014-10-15 | 安庆市东徽机械有限公司 | Reaction still |
| CN104959097A (en) * | 2015-06-04 | 2015-10-07 | 江苏进源压力容器有限公司 | Reactor stirrer |
-
2012
- 2012-09-20 CN CN 201220483392 patent/CN202829908U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104096527A (en) * | 2014-07-23 | 2014-10-15 | 安庆市东徽机械有限公司 | Reaction still |
| CN104959097A (en) * | 2015-06-04 | 2015-10-07 | 江苏进源压力容器有限公司 | Reactor stirrer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202725165U (en) | Particle crystallization reaction system for preparation of lithium battery material precursor | |
| CN202829908U (en) | Novel polyether polyol reactor | |
| CN202893348U (en) | Special reaction kettle for producing cobaltosic oxide as precursor of lithium cobalt oxide | |
| CN207805629U (en) | A kind of swing solid-liquid reaction kettle | |
| CN202717598U (en) | Reactor for preparation of iron oxide red | |
| CN205235931U (en) | Unsaturated polyether reaction unit of serialization production macromolecule | |
| CN201848246U (en) | Compounding reaction kettle capable of adjusting temperature of liquid cements | |
| CN203021488U (en) | Preparation system of carboxy styrene-butadiene latex | |
| CN215540930U (en) | Enhanced oxidation system for preparing trimethylbenzoquinone | |
| CN215963536U (en) | Hydrolysis equipment for phosphorus trichloride production | |
| CN205258426U (en) | Preparation biodiesel's ester exchange tower cauldron formula consecutive reaction device | |
| CN106984061A (en) | A kind of 1,5 pentanediamine continuous countercurrent extraction Processes and apparatus | |
| CN205586989U (en) | Dual -purpose reactor of continuous intermittent type of ultrahigh molecular weight polyethylene | |
| CN201969514U (en) | Multi-functional processing and mixing device | |
| CN208213107U (en) | A kind of Novel high-temperature high-pressure reactor | |
| CN206701233U (en) | A kind of methanator for rotating material filling type methanation reaction device | |
| CN203007184U (en) | Reaction sub-system for producing carboxylic styrene butadiene latex | |
| CN202387465U (en) | Large adipic acid reactor | |
| CN110947319A (en) | Dynamic and static combined stirring system and process for preparing chromium salt through chromite liquid-phase oxidation | |
| CN205164689U (en) | Liquid reaction device | |
| CN205925684U (en) | Reaction buffer tank | |
| CN205850844U (en) | A kind of adipic acid synthesizer | |
| CN2920389Y (en) | Polyisobutylene polymerization kettle | |
| CN2181327Y (en) | Heavy oil bulking still | |
| CN204865803U (en) | A reation kettle that is used for synthetic improved generation cooling coil that has of polyether glycol |
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: 20130327 Termination date: 20130920 |