CN104258801A - Pressure type ACR (acrylate copolymer resin) emulsion polymerization reaction kettle - Google Patents
Pressure type ACR (acrylate copolymer resin) emulsion polymerization reaction kettle Download PDFInfo
- Publication number
- CN104258801A CN104258801A CN201410521380.3A CN201410521380A CN104258801A CN 104258801 A CN104258801 A CN 104258801A CN 201410521380 A CN201410521380 A CN 201410521380A CN 104258801 A CN104258801 A CN 104258801A
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- CN
- China
- Prior art keywords
- reaction kettle
- kettle body
- emulsion polymerization
- pressure type
- type acr
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- 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.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
- B01J19/0066—Stirrers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/03—Pressure vessels, or vacuum vessels, having closure members or seals specially adapted therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/18—Details relating to the spatial orientation of the reactor
- B01J2219/185—Details relating to the spatial orientation of the reactor vertical
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymerisation Methods In General (AREA)
Abstract
The invention relates to a pressure type ACR (acrylate copolymer resin) emulsion polymerization reaction kettle, belonging to the technical field of chemical equipment. The reaction kettle comprises an upper seal head, a reaction kettle body, a feeding hole and a discharge hole, wherein a motor is arranged on the top of the upper seal head, and the motor drives a stirring shaft of a stirring device to rotate; the stirring device stretches into the reaction kettle body, and a three-leaf sweepback stirring blade is arranged at each of the end and middle of the stirring shaft; a coil is arranged in the reaction kettle body, the coil is arranged in a U shape on the inner wall of the reaction kettle body, and the inlet and outlet of the coil are respectively sealed at the joint of the reaction kettle body and the upper seal head through elliptical seal heads; and a safety valve is arranged at the upper part of the upper seal head, and a rupture disc is arranged at the inlet of the safety valve. The reaction kettle is simple in structure, good in stability and high in safety, and has good characteristics of mixing, heat transfer and mass transfer.
Description
Technical field
The present invention relates to a kind of pressure type ACR emulsion polymerization still, belong to technical field of chemical.
Background technology
Acrylate copolymer resin (ACR) is a kind of PVC impact modifier of high comprehensive performance, and its nucleus equipment produced is emulsion polymerization still.At present, the production technology mainly common gerotor type ceramic reactor of domestic and international ACR product, carries out reactive polymeric at ambient pressure, but owing to being common open ceramic reactor, is not sealing load formula, there is certain shortcoming.During polymerisation, exothermic reaction is comparatively strong, and the contradiction that exothermic heat of reaction regulates with heat radiation is very outstanding, as do not applied good control, is easy to cause sudden and violent poly-or reaction terminating.The requirement that reactor controls temperature and pressure is very high, and this is directly connected to the quality of product and the security of reaction.
Summary of the invention
According to above deficiency of the prior art, the technical problem to be solved in the present invention is: provide a kind of pressure type ACR emulsion polymerization still, and its structure is simple, good stability, security are high, has the feature of good mixing, heat transfer, mass transfer.
The technical solution adopted for the present invention to solve the technical problems is:
Described pressure type ACR emulsion polymerization still, comprises upper cover, reaction kettle body, charging aperture and discharging opening, upper cover top is provided with motor, and the shaft of described driven by motor agitating device rotates; Described agitating device gos deep in reaction kettle body, is equipped with three leaf swept-back stirrer paddles in shaft end and centre position; In reaction kettle body, be provided with coil pipe, coil pipe is U-shaped along the arrangement of reaction kettle body inwall, and the import of coil pipe and outlet are encapsulated in the connection part of reaction kettle body and upper cover respectively by ellipse head; Described upper cover top is provided with safety valve, and safety valve porch is provided with rupture disk.
Described three leaf swept-back stirrer paddles are four groups, equidistantly distribute, and diameter is reaction kettle body (1/2nd of diameter.The front shear force of three leaf swept-back stirrer paddles is comparatively large, is enough to make monomer material be separated into thin dripping and also can is suspended in liquid phase uniformly, be convenient to polymerization and unlikely agglomeration is piled into block; Stir stream recirculates characteristic good, liquid can be made simultaneously to produce axis and radial motion; Carry out circulation fully to make liquid and eliminate the inhomogeneities of temperature, heat-transfer effect is good, and discharge rate is large; In still, per minute to reach 5 ~ 10 mass transfer effects good for liquid phase circulation, can make reaction uniformity in still; The change of proportion in converging operation process can be adapted to; The paddle of several layers of other pattern can be replaced with one deck stirrer paddle, make to simplify the structure easy to maintenance.
Described ellipse head outside is provided with protective separation circle, ellipse head effectively can be avoided to be subject to the impact of temperature jump, produce larger thermal (temperature difference) stress, cause ellipse head to leak.
Be provided with round platform support between bottom described shaft and bottom reaction kettle body, effectively improve stability when shaft runs.
Described charging aperture is arranged on upper cover top; Discharging opening is arranged on bottom reaction kettle body.
Described reaction kettle body outer setting has U-shaped chuck, and the top of chuck is provided with ring support.
Described U-shaped coil pipe is distributed in the inside of reaction kettle body, improves the efficiency of heat transfer, decreases the heat-energy losses in the middle of heat transfer.The chuck of U-shaped coil pipe with reaction kettle body outside is combined by the present invention, and reactor can be adapted to be rapidly heated the technological requirement of fast cooling.
Described upper cover top is provided with flusher, and flusher and safety valve are distributed in the both sides of motor.Coil pipe is distributed in reaction kettle body inside, and reaction terminates easily to speckle with material afterwards, and the flusher set up can carry out fully cleaning easily to coil pipe and reaction kettle body inside.
Safety valve in the present invention-rupture disk combination unit, can prevent the leakage using separately safety valve, and the continuation that can recover again reactor after the action completing discharge excess pressure uses.Utilize rupture disk that the gas in safety valve and reactor and material are isolated; in case safety valve is corroded or blocked by the dirt in gas or cling; when reactor superpressure; rupture disk ruptures; safety valve is also opened, and after reactor step-down, safety valve cuts out again; reactor can continue temporary operation, is loaded on rupture disk when waiting equipment downtime to overhaul.
The beneficial effect that the present invention has is:
Structure of the present invention is simple, good stability, and the safety valve-rupture disk combination unit of increase, significantly adds the safety coefficient of reactor; Three leaf swept-back stirrer paddles have good mixing, the feature of mass transfer; U-shaped coil pipe has good heat-transfer effect.Above device comprehensively uses the stability that improve production efficiency and product quality, reduces consumption, improves economic benefit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In figure: 1, upper cover; 2 flushers; 3, charging aperture; 4, motor; 5, Pressure gauge; 6, safety valve; 7, rupture disk; 8, ellipse head; 9, protective separation circle; 10, ring support; ; 11, chuck; 12, reaction kettle body; 13, discharging opening; 14, round platform support; 15, shaft; 16, three leaf swept-back stirrer paddles; 17, coil pipe.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described further:
As shown in Figure 1, described pressure type ACR emulsion polymerization still, comprises upper cover 1, reaction kettle body 12, charging aperture 3 and discharging opening 13, upper cover 1 top is provided with motor 4, and described motor 4 drives the shaft 15 of agitating device to rotate; Described agitating device gos deep in reaction kettle body 12, is equipped with three leaf swept-back stirrer paddles 16 in shaft 15 end and centre position; In reaction kettle body 12, be provided with coil pipe 17, coil pipe 17 is U-shaped along the arrangement of reaction kettle body 12 inwall, and import and the outlet of coil pipe 17 are encapsulated in the connection part of reaction kettle body 12 and upper cover 1 respectively by ellipse head 8; Described upper cover 1 top is provided with safety valve 6, and safety valve 6 porch is provided with rupture disk 7.
Described three leaf swept-back stirrer paddles 16 are four groups, equidistantly distribute, and diameter is 1/2nd of reaction kettle body 12 diameter.
Described ellipse head 8 outside is provided with protective separation circle 9, avoids ellipse head 8 and produces larger thermal (temperature difference) stress by the impact of temperature jump, and then avoids ellipse head 8 and leak.
Be provided with round platform support 14 between bottom described shaft 15 and bottom reaction kettle body 12, improve stability when shaft 15 runs.
Described charging aperture 3 is arranged on upper cover 1 top; Discharging opening 13 is arranged on bottom reaction kettle body 12.
Described reaction kettle body 12 outer setting has U-shaped chuck 11, and the top of chuck 11 is provided with ring support 10.
Described coil pipe 17 is distributed in the inside of reaction kettle body 12, improves the efficiency of heat transfer, decreases the heat-energy losses in the middle of heat transfer.
Described upper cover 1 top is provided with flusher 2, and flusher 2 and safety valve 6 are distributed in the both sides of motor 4.
When described pressure type ACR emulsion polymerization still is applied to ACR emulsion polymerisation, first in coil pipe 17 and chuck 11, pass into steam to heat up to reaction kettle body 12, then open charging aperture 3 and add raw material according to formula, starter motor 4 starts to stir, and raw material reacts under the state of Keep agitation.Monitored by the pressure in Pressure gauge 5 pairs of reaction kettle bodies 12, when exceeding setting, start safety valve 6-rupture disk 7 combination unit and carry out pressure release.Reaction terminates to pass into cooling fluid in backward coil pipe 17 and chuck 11 and cools product and reaction kettle body 12, is down to room temperature, and startup flusher 2 pairs of reaction kettle bodies 12 inside and U-shaped coil pipe 17 rinse.
Claims (9)
1. a pressure type ACR emulsion polymerization still, comprise upper cover (1), reaction kettle body (12), charging aperture (3) and discharging opening (13), it is characterized in that: upper cover (1) top is provided with motor (4), described motor (4) drives the shaft (15) of agitating device to rotate; Described agitating device gos deep in reaction kettle body (12), is equipped with three leaf swept-back stirrer paddles (16) in shaft (15) end and centre position; Coil pipe (17) is provided with in reaction kettle body (12), coil pipe (17) is U-shaped along the arrangement of reaction kettle body (12) inwall, and import and the outlet of coil pipe (17) are encapsulated in the connection part of reaction kettle body (12) and upper cover (1) respectively by ellipse head (8); Described upper cover (1) top is provided with safety valve (6), and safety valve (6) porch is provided with rupture disk (7).
2. pressure type ACR emulsion polymerization still according to claim 1, is characterized in that: three leaf swept-back stirrer paddles (16) are four groups, equidistantly distribute.
3. pressure type ACR emulsion polymerization still according to claim 1 and 2, is characterized in that: three leaf swept-back stirrer paddle (16) diameters are 1/2nd of reaction kettle body (12) diameter.
4. pressure type ACR emulsion polymerization still according to claim 1, is characterized in that: ellipse head (8) outside is provided with protective separation circle (9).
5. pressure type ACR emulsion polymerization still according to claim 1, is characterized in that: be provided with round platform support (14) between shaft (15) bottom and reaction kettle body (12) bottom.
6. pressure type ACR emulsion polymerization still according to claim 1, is characterized in that: charging aperture (3) is arranged on upper cover (1) top; Discharging opening (13) is arranged on reaction kettle body (12) bottom.
7. pressure type ACR emulsion polymerization still according to claim 1, is characterized in that: reaction kettle body (12) outer setting has U-shaped chuck (11).
8. pressure type ACR emulsion polymerization still according to claim 7, is characterized in that: the top of chuck (11) is provided with ring support (10).
9. the pressure type ACR emulsion polymerization still according to claim 1 or 6, it is characterized in that: upper cover (1) top is provided with flusher (2), flusher (2) and safety valve (6) are distributed in the both sides of motor (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410521380.3A CN104258801A (en) | 2014-09-30 | 2014-09-30 | Pressure type ACR (acrylate copolymer resin) emulsion polymerization reaction kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410521380.3A CN104258801A (en) | 2014-09-30 | 2014-09-30 | Pressure type ACR (acrylate copolymer resin) emulsion polymerization reaction kettle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104258801A true CN104258801A (en) | 2015-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410521380.3A Pending CN104258801A (en) | 2014-09-30 | 2014-09-30 | Pressure type ACR (acrylate copolymer resin) emulsion polymerization reaction kettle |
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| CN (1) | CN104258801A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011133283A2 (en) * | 2010-04-19 | 2011-10-27 | Exxonmobil Chemical Patents Inc. | Apparatus and methods for utilizing heat exchanger tubes |
| CN203030276U (en) * | 2012-12-21 | 2013-07-03 | 泰兴冶炼厂有限公司 | Stirring type reaction kettle in outer coil pipe |
| CN203170327U (en) * | 2013-04-28 | 2013-09-04 | 辽宁省石油化工规划设计院有限公司 | Reaction kettle for emulsion polymerization |
| CN203484159U (en) * | 2013-09-26 | 2014-03-19 | 上海强盛化工有限公司 | Spraying equipment of polymerizer |
| CN203591798U (en) * | 2013-10-30 | 2014-05-14 | 吉安荣威生物科技有限公司 | Esterification reaction kettle for preparing wool fat cholesterol |
-
2014
- 2014-09-30 CN CN201410521380.3A patent/CN104258801A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011133283A2 (en) * | 2010-04-19 | 2011-10-27 | Exxonmobil Chemical Patents Inc. | Apparatus and methods for utilizing heat exchanger tubes |
| CN203030276U (en) * | 2012-12-21 | 2013-07-03 | 泰兴冶炼厂有限公司 | Stirring type reaction kettle in outer coil pipe |
| CN203170327U (en) * | 2013-04-28 | 2013-09-04 | 辽宁省石油化工规划设计院有限公司 | Reaction kettle for emulsion polymerization |
| CN203484159U (en) * | 2013-09-26 | 2014-03-19 | 上海强盛化工有限公司 | Spraying equipment of polymerizer |
| CN203591798U (en) * | 2013-10-30 | 2014-05-14 | 吉安荣威生物科技有限公司 | Esterification reaction kettle for preparing wool fat cholesterol |
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Application publication date: 20150107 |