CN2880825Y - Middle polymeric cauldron of polymerization producing polyvinyl chloride paste resin by latex process - Google Patents
Middle polymeric cauldron of polymerization producing polyvinyl chloride paste resin by latex process Download PDFInfo
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- CN2880825Y CN2880825Y CN 200520092409 CN200520092409U CN2880825Y CN 2880825 Y CN2880825 Y CN 2880825Y CN 200520092409 CN200520092409 CN 200520092409 CN 200520092409 U CN200520092409 U CN 200520092409U CN 2880825 Y CN2880825 Y CN 2880825Y
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- kettle
- cauldron
- resin paste
- emulsion polymerization
- pvc resin
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Abstract
A middle polymeric cauldron of polymerization producing polyvinyl chloride paste resin by latex process comprising a cauldron body, a transmission device, a stirrer fixed inside the cauldron body , a polymerization DCS control system, is characterized in that a helical semi-tubular jacket is fixed on the external wall of the straight barrel of the cauldron body, a helical guide plate jacket in fixed on the external wall of the bottom of the cauldron body, a finger shape internal cooling retainer equipped with cooling water inlet and outlet is installed inside the cauldron body with the upper end of the finger shape internal cooling retainer extending outside the cauldron body. The advantages of the present utility model are: An upper inserting boom type transmission device is adopted to ensure stable transmission and long operating cycle; A three-blade sweeping-back type stirring paddle to improve the stirring strength, the shearing force and circulation times up and down which can ensure concentrated and uniform product particles; The finger shape internal cooling retainer not only provides ideal thermal transfer effect, but also improves the stirring effect. To sum up, products produced by the polymeric cauldron of this utility model has regular configuration, high porosity, high purity degree, good transparency and good insulation performance, favorable oil absorbing property, only a little black & yellow spots and crystal particles.
Description
(1) technical field
The utility model relates to a kind of polymeric kettle, specifically relates to a kind of medium-sized polymeric kettle of producing PVC resin paste by emulsion polymerization.
(2) background technology
In the pvc resin paste grade production process, polymeric kettle is a main production equipments.Its technical feature quality directly has influence on output, quality and the performance driving economy of pvc resin paste grade.At present, homemade pvc resin paste grade polymeric kettle has only 13.5m
3, 7m
3Etc. several small-sized polymerization kettles.These polymeric kettle unit volumes are little, the power consumption high, and counter investment height, production efficiency low, eliminated gradually.Along with the polyvinyl chloride industrial expansion, polymeric kettle also towards most economical, production efficiency is high, construction and upkeep cost is low, good product quality, direction that output is big develop.In vinylchlorid emulsion method polymerization process, exist problems such as sticking still, product particle are inhomogeneous, heat-transfer effect difference always, have a strong impact on the quality of polyvinyl chloride product; Particularly sticking still is an open question all the time in the Production of PVC process.In the general Production of PVC process, all to influence the performance of polymeric kettle throughput after the polymerization each time to cleaning in the still.And the generation of the problems referred to above, remove have with polymerization technique outside the Pass, also relevant with the design of the structure of polymeric kettle and support equipment.
The polymeric kettle type of cooling had chuck cooling (comprising conventional jacket, spiral stream guidance chuck) in the past.All there are many disadvantages in these structures, utilize conventional jacket when cooling because water coolant is entered by the chuck end opening, through the chuck ring go straight up to and on, by outflow suitable for reading, water flow velocity is very low, turbulent flow is not enough, the cooling performance extreme difference.Though adopting the spiral stream guidance chuck to conduct heat makes moderate progress, processing preferably under the situation, can obtain bigger flow velocity (2-3m/s), thereby increase substantially heat-transfer effect, but because of being subjected to the restriction that machining is made, and water coolant is walked ' short circuit ' easily, and low therefore its method of cooling of heat transfer coefficient also haves much room for improvement.
(3) summary of the invention
The technical problems to be solved in the utility model provides a kind of production efficiency height, builds the medium-sized polymeric kettle of the low producing PVC resin paste by emulsion polymerization of operation and maintenance cost.
The technical scheme that adopts is:
The medium-sized polymeric kettle of producing PVC resin paste by emulsion polymerization comprises kettle, transmission mechanism, agitator, polyreaction DCS Controlling System; Agitator is installed in the kettle, is installed with the spiral half-pipe jacket on the straight drum outer wall of kettle, is installed with the spiral deflector chuck on the bottom outer wall of kettle; Be equiped with cold plate washer in the finger-type in kettle, kettle is stretched out in cold plate washer upper end in the finger-type, and is equiped with entrance of cooling water and cooling water outlet, is installed with the quick opening manhole of interlock at the kettle top.
Above-mentioned kettle volume is 20-60m
3, length-to-diameter ratio is 1-1.2, high 10-20m, nominal diameter are 2-4m.
The stir shaft of above-mentioned agitator is connected with three leaf swept-back stirring rakes by metallic bond.
Above-mentioned transmission mechanism adopts to go up inserts the cantilever shaft type, its connecting mode is: be installed with pulley belt between electric motor and step-down gear, select two-speed motor simultaneously for use, therefore when reducing device fabrication and technology cost, can regulate, make equipment obtain best stirring reaction effect the equipment operation performance; Step-down gear is connected by clamping coupling with the transmission shaft upper end, mechanical seal is installed with the mechanical seal locating bearing, mechanical seal is installed on the top cover of kettle of lower end of clamping coupling, mechanical seal can be taken out in the end play after pulling down clamping coupling like this, thereby helps the equipment installation, maintenance; Be installed with pipeline road between mechanical seal and oil station; Minor axis is connected by bolt with stir shaft, upper bearing box neck bearing and two point of suppon of lower bearing box neck bearing; Electric motor, step-down gear are installed on the transmission mechanism frame.
The utility model polymeric kettle length-to-diameter ratio is suitable, and unit output (can reach 450 tons/m greatly
3. year), the utility model adopts three leaf swept-back stirring rakes, and its purpose is to improve stirring intensity shearing force and cycle index up and down, and product pellet is concentrated and even; Not only heat-transfer effect is very desirable for cold plate washer in the finger-type, and can greatly improve mixing effect; In a word, the product configuration that adopts polymeric kettle of the present utility model to produce is regular, and porosity height, purity height, the transparency is good and insulativity is good, the oil absorbency height, and black yellow point and brilliant point are few.Succeeding in developing of the utility model polymeric kettle for China's polyvinyl chloride industry production has increased a new reator kind, will promote the development of China's polyvinyl chloride industry production.
(4) description of drawings
Fig. 1 is a kind of embodiment device structural representation of the present utility model.
Fig. 2 is the structural representation of transmission mechanism of the present utility model.
Fig. 3 is three leaf swept-back stirring rake structural representations.
Fig. 4 is three leaf swept-back stirring rake structure schematic top plan view.
(5) embodiment
Embodiment one
The medium-sized polymeric kettle of producing PVC resin paste by emulsion polymerization comprises kettle 1, transmission mechanism 2, agitator, polyreaction DCS Controlling System; Agitator is installed in the kettle 1, be installed with spiral deflector chuck 11 on the straight drum outer wall of kettle 1, the less flow of spiral deflector chuck 11 usefulness can obtain bigger water coolant flow velocity (4m/s), adopt whole processing back Wrapping technical, guarantee crack 0-2mm between chuck and the flow deflector, can the bigger raising coefficient of heat transfer, heat transfer coefficient can reach 950kcal/m
2. ℃ hr, adopt the spiral deflector chuck both to increase kettle rigidity, avoided taking place in the process of cooling " short circuit " phenomenon simultaneously effectively; Be installed with spiral stream guidance chuck 14 on the bottom outer wall of kettle 1; In kettle 1, be equiped with cold plate washer 15 in the finger-type, kettle 1 is stretched out in cold plate washer 15 upper ends in the finger-type, and be equiped with entrance of cooling water 20 and cooling water outlet 21, utilize cold plate washer 15 heat transfers in the finger-type, its effect is very desirable, cold plate washer 15 can greatly improve mixing effect in the finger-type, simultaneously material reaction in the still is realized Cooling Heat Transfer, and cold plate washer 15 heat transfer coefficients can reach 950-1200kcal/m in the finger-type
2. ℃ hr, its heat transfer area are that chuck heat transfer area 18% conducts whole polymerization reaction heat 25%, and as seen its heat-transfer effect is fairly good; Be installed with the quick opening manhole 10 of interlock at kettle 1 top; The kettle volume is 24m
3, length-to-diameter ratio is 1: 1, high 10m, nominal diameter are 3m; The stir shaft 12 of agitator is connected with three leaf swept-back stirring rakes 13 by metallic bond 22, adopt three leaf swept-back stirring rakes 13 to improve mixing effect, improve stirring intensity shearing force and cycle index up and down simultaneously, be convenient to the water coolant circulation so as to remedying chuck heat exchange deficiency; Transmission mechanism 2 adopts to go up inserts the cantilever shaft type, its connecting mode is: 5 of electric motor 3 and step-down gears are installed with pulley belt 4, select two-speed motor simultaneously for use, therefore when reducing device fabrication and technology cost, can regulate, make equipment obtain best stirring reaction effect the equipment operation performance; Step-down gear 5 is connected by clamping coupling 7 with transmission shaft 23 upper ends, mechanical seal 9 is installed with mechanical seal locating bearing 18, mechanical seal 9 is installed on the top cover of kettle 1 of lower end of clamping coupling 7, pulling down clamping coupling 7 back mechanical seals 9 like this can take out in the end play, thereby helps the equipment installation, maintenance; 16 at mechanical seal 9 and oil station are installed with pipeline road, and minor axis 19 and stir shaft 12 are connected by bolt, and upper bearing box 6 neck bearings and two point of suppon of lower bearing box 8 neck bearings are arranged, and electric motor 3, step-down gear 5 are directly installed on the transmission mechanism frame 17; The entire equipment length-to-diameter ratio is less, and the entire equipment height is reduced, and has therefore reduced the integral body manufacturing and the running cost of equipment.The utility model is suitable for solid particulate below 10 orders, and concentration is less than 50%, and viscosity is at 120 li chloroethylene polymerizations below the pool.
The control of producing PVC resin paste by emulsion polymerization processing requirement temperature is strict, so the DCS Controlling System is adopted in polymerization.Realize polymerization temperature automatization control by the DCS Controlling System, in conjunction with the above-mentioned type of cooling, polymerization temperature can be controlled within the 0.1-.0.2 scope, thereby avoids Stirring heat transfer temperature control phenomenon, and assurance equipment operation and technical process are normally carried out continuously.
Embodiment two
Embodiment two and embodiment one are basic identical, and its difference is: kettle 1 nominal volume is 50m
3, length-to-diameter ratio 1: 1, height 15m, nominal diameter 3.6m.
Claims (6)
1, the medium-sized polymeric kettle of producing PVC resin paste by emulsion polymerization comprises kettle (1), transmission mechanism (2), agitator, polyreaction DCS Controlling System; Agitator is installed in the kettle (1), it is characterized in that: be installed with spiral deflector chuck (11) on the straight drum outer wall of kettle (1), be installed with spiral stream guidance chuck (14) on the bottom outer wall of kettle (1); Be equiped with cold plate washer (15) in the finger-type in kettle (1), kettle (1) is stretched out in cold plate washer upper end in the finger-type, and is equiped with entrance of cooling water (20) and cooling water outlet (21).
2, the medium-sized polymeric kettle of producing PVC resin paste by emulsion polymerization according to claim 1 is characterized in that: described kettle (1) volume is 20-60m
3, length-to-diameter ratio is 1.0-1.2, high 10-20m, nominal diameter are 2.0-4.0m.
3, the medium-sized polymeric kettle of producing PVC resin paste by emulsion polymerization according to claim 2 is characterized in that: described kettle (1) volume is 24m
3, length-to-diameter ratio is 1: 1, high 10m, nominal diameter are 3.0m.
4, the medium-sized polymeric kettle of producing PVC resin paste by emulsion polymerization according to claim 2 is characterized in that: described kettle (1) volume is 50m
3, length-to-diameter ratio is 1: 1, high 15m, nominal diameter are 3.6m.
5, the medium-sized polymeric kettle of producing PVC resin paste by emulsion polymerization according to claim 1 is characterized in that: the stir shaft of described agitator (12) is connected with three leaf swept-back stirring rakes (13) by metallic bond (22).
6, the medium-sized polymeric kettle of producing PVC resin paste by emulsion polymerization according to claim 1, it is characterized in that: be installed with pulley belt (4) between the electric motor (3) of described transmission mechanism (2) and step-down gear (5), step-down gear (5) is connected by clamping coupling (7) with transmission shaft (23) upper end, mechanical seal (9) is installed with mechanical seal locating bearing (18), mechanical seal (9) is installed on the top cover of kettle (1) of lower end of clamping coupling (7), be installed with pipeline road between mechanical seal (9) and oil station (16), minor axis (19) is connected by bolt with stir shaft (12), upper bearing box (6) neck bearing and two point of suppon of lower bearing box (8) neck bearing are arranged, electric motor (3), step-down gear (5) is installed on the transmission mechanism frame (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520092409 CN2880825Y (en) | 2005-09-08 | 2005-09-08 | Middle polymeric cauldron of polymerization producing polyvinyl chloride paste resin by latex process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520092409 CN2880825Y (en) | 2005-09-08 | 2005-09-08 | Middle polymeric cauldron of polymerization producing polyvinyl chloride paste resin by latex process |
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| Publication Number | Publication Date |
|---|---|
| CN2880825Y true CN2880825Y (en) | 2007-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520092409 Expired - Lifetime CN2880825Y (en) | 2005-09-08 | 2005-09-08 | Middle polymeric cauldron of polymerization producing polyvinyl chloride paste resin by latex process |
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|---|---|
| CN (1) | CN2880825Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105964203A (en) * | 2016-06-27 | 2016-09-28 | 浙江巨化股份有限公司电化厂 | Polymerizing kettle and method for producing polyvinylidene chloride |
| CN107141392A (en) * | 2017-06-30 | 2017-09-08 | 江苏中煦高分子材料有限公司 | A kind of chlorination linear low density polyethylene (LLDPE) synthesis technique |
-
2005
- 2005-09-08 CN CN 200520092409 patent/CN2880825Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105964203A (en) * | 2016-06-27 | 2016-09-28 | 浙江巨化股份有限公司电化厂 | Polymerizing kettle and method for producing polyvinylidene chloride |
| CN107141392A (en) * | 2017-06-30 | 2017-09-08 | 江苏中煦高分子材料有限公司 | A kind of chlorination linear low density polyethylene (LLDPE) synthesis technique |
| CN107141392B (en) * | 2017-06-30 | 2020-05-19 | 江苏中煦高分子材料有限公司 | Process for synthesizing chlorinated linear low-density polyethylene |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: AVIC LIMING JINXI CHEMICAL MACHINERY (GROUP) CO., Free format text: FORMER NAME: JINXI CHEMICAL MACHINERY (GROUP) CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 125001 No. 25 chemical machinery road, Lianshan District, Huludao Patentee after: AVIC Liming Jinxi Chemical Machinery (Group) Co., Ltd. Address before: 125001 No. 25 chemical Street, Lianshan District, Liaoning, Huludao Patentee before: Jinxi Chemical Machinery (Group) Co., Ltd. |
|
| CX01 | Expiry of patent term |
Expiration termination date: 20150908 Granted publication date: 20070321 |
|
| EXPY | Termination of patent right or utility model |