CN104028173B - Polymeric kettle feeding device and using method thereof - Google Patents
Polymeric kettle feeding device and using method thereof Download PDFInfo
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- CN104028173B CN104028173B CN201410230301.3A CN201410230301A CN104028173B CN 104028173 B CN104028173 B CN 104028173B CN 201410230301 A CN201410230301 A CN 201410230301A CN 104028173 B CN104028173 B CN 104028173B
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Abstract
<b>the present invention relates to polyvinyl-chloride use polymeric kettle technical field, be a kind of polymeric kettle feeding device and using method thereof；This polymeric kettle feeding device includes polymeric kettle and base；Polymeric kettle is fixedly mounted on base, the first feed end and the second feed end it is respectively arranged with on the top of polymeric kettle, first feed end is fixedly connected with monomer line, second feed end is fixedly connected with terminator pipeline, the bottom of polymeric kettle is provided with discharge end, discharge end is fixedly connected with discharging pipeline.In the present invention, Vinyl Chloride Monomer, cold deionized water, aqueous dispersant and aqueous solution of buffer agent are simultaneously introduced, not only save the pan feeding time, also avoid the generation of polychloroethylene with high polymerization degree resin when lower temperature in polymeric kettle pan feeding process, reduce Corvic molecular weight distribution width, make the Corvic performance that the present invention obtains more stable, save cost, improve production efficiency.</b>
Description
Technical field
The present invention relates to polyvinyl-chloride use polymeric kettle technical field, be a kind of polymeric kettle feeding device and using method thereof.
Background technology
Produce the 110m of polrvinyl chloride at present
3
Polymeric kettle pan feeding technique adopts cold deionized water, hot deionized water intersection pan feeding mode, its specific embodiment is: carry out playing the operation of cold deionized water after polymeric kettle is coated with still operation, start cold without ionic pump by cold deionized water by adding polymeric kettle from bottom portion after mass flowmenter, starting buffer agent charge pump, dispersant charge pump, initiator charge pump by buffer agent, dispersant, the initiator cold deionized water pipeline of addition, buffer agent, dispersant, initiator bring polymeric kettle into by cold deionized water simultaneously.After the auxiliary agents such as buffer agent, dispersant and initiator have added prior to cold deionized water, after cold deionized water has added, start monomer pan feeding pump and be separately added into recovery monomer and fresh monomer, finally start hot deionized water pump in polymeric kettle, add 120 DEG C of overheated deionized waters, hot deionized water has added post polymerization temperature in the kettle close to reaction temperature (namely set reaction temperature T ± 2 DEG C), starting constant temperature polyreaction, whole polymerization pan feeding process is consuming time at 65 minutes.
But existing technique there is problems in that (1) existing pan feeding technique is according to hot deionized water, cold deionized water temperature computation addition, DCS controlling system automatic gauge and add in polymeric kettle, this pan feeding technique pan feeding time is longer, and the utilization rate of polymeric kettle is relatively low；(2) polymerization temperature is almost the single factor determining Corvic molecular weight, and in polymerization produces, Corvic molecular weight represents with viscosity number, and by viscosity number district Corvic model.In above pan feeding technique, initiator enters in polymeric kettle by cold deionized water, after cold water pan feeding completes, Vinyl Chloride Monomer adds in polymeric kettle, now polymeric kettle temperature is not up to setting reaction temperature, existence due to initiator, Vinyl Chloride Monomer is proceeding by polyreaction lower than when setting reaction temperature, until hot deionized water pan feeding could carry out polyreaction after completing in setting range of reaction temperature, during this, the reaction of part Vinyl Chloride Monomer generates the Corvic of higher viscosity number, cause that Corvic product molecular weight distribution width increases, the processing characteristics of Corvic and the bad stability of goods.
Summary of the invention
The invention provides a kind of polymeric kettle feeding device and using method thereof, overcome the deficiency of above-mentioned prior art, it can effectively solve the 110m of existing production polrvinyl chloride
3
Polymeric kettle pan feeding technique exists that the pan feeding time is longer, polymeric kettle utilization rate is low, the problem of the poor stability of product Corvic.
One of technical scheme is realized by following measures: a kind of polymeric kettle feeding device, including polymeric kettle and base；Polymeric kettle is fixedly mounted on base, the first feed end and the second feed end it is respectively arranged with on the top of polymeric kettle, first feed end is fixedly connected with monomer line, second feed end is fixedly connected with terminator pipeline, the bottom of polymeric kettle is provided with discharge end, discharge end is fixedly connected with discharging pipeline, discharging pipeline is installed with the first control valve, control the discharging pipeline between valve is installed with threeway at polymeric kettle and first, threeway is fixedly connected with hot deionized water pipeline, hot deionized water pipeline is installed with the second control valve, control the hot deionized water pipeline between valve has been respectively fixedly connected with initiator pipeline and cold deionized water pipeline in threeway and second, cold deionized water pipeline is installed with the 3rd control valve, control the cold deionized water pipeline between valve has been respectively fixedly connected with dispersant pipeline and buffer agent pipeline at hot deionized water pipeline and the 3rd, in monomer line, terminator pipeline, initiator pipeline, dispersant pipeline and buffer agent pipeline are installed with valve respectively.
Further optimization and/or improvements to foregoing invention technical scheme one of are presented herein below:
Above-mentioned on monomer line, terminator pipeline, initiator pipeline, dispersant pipeline, buffer agent pipeline, hot deionized water pipeline and cold deionized water pipeline, it is installed with mass flowmenter respectively.
Above-mentioned in monomer line, it is installed with check-valves.
Above-mentioned being installed with agitator bottom polymeric kettle, the stirring end of agitator is positioned at polymeric kettle.
The above-mentioned inner coil pipe being installed with vertical direction in the cavity of polymeric kettle, the liquid feeding end of inner coil pipe is positioned at outside the bottom of polymeric kettle, the liquid outlet of inner coil pipe is positioned at outside the top of polymeric kettle, the outer wall of polymeric kettle is fixedly connected with the outer coil pipe of horizontal direction, the liquid feeding end of outer coil pipe and the liquid outlet of inner coil pipe be fixed together；Or/and, polymeric kettle is 110m
3
Polymeric kettle.
The two of technical scheme are realized by following measures: the using method of a kind of polymeric kettle feeding device, carry out in the steps below: the first step, smearing anti-fouling agent on the inwall of polymeric kettle, controlling pressure in polymeric kettle is-0.07MPa to-0.05MPa；Second step, in polymeric kettle, 190 parts to 200 parts cold deionized waters are added by weight by cold deionized water pipeline, it is the aqueous dispersant of 4% to polymeric kettle adds 8.75 parts to 10.5 parts mass percent concentrations by weight by dispersant pipeline, it is the aqueous solution of buffer agent of 10% to polymeric kettle adds 1 part to 1.5 parts mass percent concentration by weight by buffer agent pipeline, make cold deionized water carry aqueous dispersant to enter together with aqueous solution of buffer agent in polymeric kettle, in polymeric kettle, added 410 parts to 420 parts Vinyl Chloride Monomer simultaneously by monomer line by weight and stir；3rd step, after aqueous dispersant, aqueous solution of buffer agent, cold deionized water and Vinyl Chloride Monomer pan feeding complete, by hot deionized water pipeline by weight to adding 210 parts of hot deionized waters in polymeric kettle and stirring；4th step, hot deionized water pan feeding is the initiator solution of 50% and stirs to 0.4 part to 0.45 part mass percent concentration of addition in polymeric kettle by initiator pipeline by weight after completing, be 0.82MPa to 0.83MPa, temperature at pressure it is reaction 260min to 270min at 56.5 DEG C to 57.5 DEG C, being added 0.25 part to 0.35 part terminator after reaction by terminator pipeline by weight in polymeric kettle and be uniformly mixing to obtain Corvic, Corvic is discharged by discharging pipeline.
Be presented herein below to foregoing invention technical scheme two further optimization and/or improvements:
The using method of above-mentioned polymeric kettle feeding device, carries out: the first step in the steps below, smears anti-fouling agent on the inwall of polymeric kettle, and controlling pressure in polymeric kettle is-0.07MPa to-0.05MPa；Second step, by cold deionized water pipeline to polymeric kettle adds 19 tons to 20 tons cold deionized waters, be the aqueous solution of buffer agent of 10% to polymeric kettle adding 875 kilograms to the aqueous dispersant that 1050 kilogram-mass percent concentrations are 4%, by buffer agent pipeline to polymeric kettle adds double centner to 150 kilogram-mass percent concentrations by dispersant pipeline, make cold deionized water carry aqueous dispersant to enter together with aqueous solution of buffer agent in polymeric kettle, in polymeric kettle, add 41 tons to 42 tons Vinyl Chloride Monomer by monomer line and stir simultaneously；3rd step, after aqueous dispersant, aqueous solution of buffer agent, cold deionized water and Vinyl Chloride Monomer pan feeding complete, and is stirred to 21 tons of hot deionized waters of addition in polymeric kettle by hot deionized water pipeline；4th step, hot deionized water pan feeding is the initiator solution of 50% to 45 kilogram-mass percent concentrations by initiator pipeline and stirs to adding 40 kilograms in polymeric kettle after completing, be 0.82MPa to 0.83MPa, temperature at pressure it is reaction 260min to 270min at 56.5 DEG C to 57.5 DEG C, being added 25 kilograms to 35 kilograms terminators in polymeric kettle by terminator pipeline and be uniformly mixing to obtain Corvic after reaction, Corvic is discharged by discharging pipeline.
The temperature of above-mentioned cold deionized water is 20 DEG C to 25 DEG C；Or/and, the temperature of hot deionized water is 110 DEG C to 120 DEG C.
Above-mentioned anti-fouling agent is polyhydric phenols copolymer；Aqueous dispersant is polyvinyl alcohol water solution；Aqueous solution of buffer agent is ammonium bicarbonate aqueous solution；Initiator solution is that cumyl peroxyneodecanoate and peroxy dicarbonate are double; two by volume for the 3:1 aqueous solution being configured to.
Above-mentioned stir speed (S.S.) is 124 revs/min to 126 revs/min；Or/and, polymeric kettle is 110m
3
Polymeric kettle.
In the present invention, Vinyl Chloride Monomer, cold deionized water, aqueous dispersant and aqueous solution of buffer agent are simultaneously introduced, not only save the pan feeding time, also avoid the generation of polychloroethylene with high polymerization degree resin when lower temperature in polymeric kettle pan feeding process, reduce Corvic molecular weight distribution width, make the Corvic performance that the present invention obtains more stable, save cost, improve production efficiency.
Accompanying drawing explanation
Accompanying drawing 1 is the process flow diagram of the present invention.
Coding in accompanying drawing is respectively as follows: 1 for polymeric kettle, and 2 is base, and 3 is monomer line, 4 is terminator pipeline, and 5 is discharging pipeline, and 6 is the first control valve, 7 is threeway, and 8 is hot deionized water pipeline, and 9 is the second control valve, 10 is initiator pipeline, and 11 is cold deionized water pipeline, and 12 is the 3rd control valve, 13 is dispersant pipeline, and 14 is buffer agent pipeline, and 15 is check-valves, 16 is agitator, and 17 is inner coil pipe, and 18 is outer coil pipe.
Detailed description of the invention
The present invention, not by the restriction of following embodiment, can determine specific embodiment according to technical scheme and practical situation.
In the present invention, for the ease of describing, the Butut mode that the description of the relative position relation of each parts is all according to Figure of description 1 is described, as: the position relationship of forward and backward, upper and lower, left and right etc. is based on what the Butut direction of Figure of description 1 was determined.
Below in conjunction with embodiment and accompanying drawing, the invention will be further described:
Embodiment 1, as shown in Figure 1, this polymeric kettle feeding device includes polymeric kettle 1 and base 2；Polymeric kettle 1 is fixedly mounted on base 2, the first feed end and the second feed end it is respectively arranged with on the top of polymeric kettle 1, first feed end is fixedly connected with monomer line 3, second feed end is fixedly connected with terminator pipeline 4, the bottom of polymeric kettle 1 is provided with discharge end, discharge end is fixedly connected with discharging pipeline 5, discharging pipeline 5 is installed with the first control valve 6, discharging pipeline 5 between polymeric kettle 1 and the first control valve 6 is installed with threeway 7, threeway 7 is fixedly connected with hot deionized water pipeline 8, hot deionized water pipeline 8 is installed with the second control valve 9, hot deionized water pipeline 8 between threeway 7 and the second control valve 9 initiator pipeline 10 and cold deionized water pipeline 11 have been respectively fixedly connected with, cold deionized water pipeline 11 is installed with the 3rd control valve 12, cold deionized water pipeline 11 between hot deionized water pipeline 8 and the 3rd control valve 12 dispersant pipeline 13 and buffer agent pipeline 14 have been respectively fixedly connected with, in monomer line 3, terminator pipeline 4, initiator pipeline 10, dispersant pipeline 13 and buffer agent pipeline 14 are installed with valve respectively.So, the first control valve 6 is easy to control discharging；Second controls valve 9 is easy to control the addition of hot deionized water；3rd controls valve 12 is easy to control the addition of cold deionized water.
According to actual needs, above-described embodiment 1 can be made further optimization and/or improvements:
As required, monomer line 3, terminator pipeline 4, initiator pipeline 10, dispersant pipeline 13, buffer agent pipeline 14, hot deionized water pipeline 8 and cold deionized water pipeline 11 are installed with mass flowmenter respectively.So, mass flowmenter is easy to control the quality of entrance polymeric kettle 1 material in each pipeline.
As shown in Figure 1, monomer line 3 is installed with check-valves 15.So, check-valves 15 prevents Vinyl Chloride Monomer from flowing backwards.
As shown in Figure 1, being installed with agitator 16 bottom polymeric kettle 1, the stirring end of agitator 16 is positioned at polymeric kettle 1.So, agitator 16 is easy to stirring, makes the material in polymeric kettle 1 be homogenously mixed together.
As shown in Figure 1, the inner coil pipe 17 of vertical direction it is installed with in the cavity of polymeric kettle 1, the liquid feeding end of inner coil pipe 17 is positioned at outside the bottom of polymeric kettle 1, the liquid outlet of inner coil pipe 17 is positioned at outside the top of polymeric kettle 1, the outer wall of polymeric kettle 1 is fixedly connected with the outer coil pipe 18 of horizontal direction, the liquid feeding end of outer coil pipe 18 and the liquid outlet of inner coil pipe 17 be fixed together；Or/and, polymeric kettle 1 is 110m
3
Polymeric kettle.So, during work, outside coil pipe 18 and inner coil pipe 17 pass into recirculated water, it is simple to control polymeric kettle 1 reaction temperature.
Embodiment 2, as shown in Figure 1, the using method of this polymeric kettle feeding device carries out in the steps below: the first step, smears anti-fouling agent on the inwall of polymeric kettle, and controlling pressure in polymeric kettle is-0.07MPa to-0.05MPa；Second step, in polymeric kettle, 190 parts to 200 parts cold deionized waters are added by weight by cold deionized water pipeline, it is the aqueous dispersant of 4% to polymeric kettle adds 8.75 parts to 10.5 parts mass percent concentrations by weight by dispersant pipeline, it is the aqueous solution of buffer agent of 10% to polymeric kettle adds 1 part to 1.5 parts mass percent concentration by weight by buffer agent pipeline, make cold deionized water carry aqueous dispersant to enter together with aqueous solution of buffer agent in polymeric kettle, in polymeric kettle, added 410 parts to 420 parts Vinyl Chloride Monomer simultaneously by monomer line by weight and stir；3rd step, after aqueous dispersant, aqueous solution of buffer agent, cold deionized water and Vinyl Chloride Monomer pan feeding complete, by hot deionized water pipeline by weight to adding 210 parts of hot deionized waters in polymeric kettle and stirring；4th step, hot deionized water pan feeding is the initiator solution of 50% and stirs to 0.4 part to 0.45 part mass percent concentration of addition in polymeric kettle by initiator pipeline by weight after completing, be 0.82MPa to 0.83MPa, temperature at pressure it is reaction 260min to 270min at 56.5 DEG C to 57.5 DEG C, being added 0.25 part to 0.35 part terminator after reaction by terminator pipeline by weight in polymeric kettle and be uniformly mixing to obtain Corvic, Corvic is discharged by discharging pipeline.
Embodiment 3, as shown in Figure 1, the using method of this polymeric kettle feeding device carries out in the steps below: the first step, smears anti-fouling agent on the inwall of polymeric kettle, and controlling pressure in polymeric kettle is-0.07MPa or-0.05MPa；Second step, in polymeric kettle, 190 parts or 200 parts of cold deionized waters are added by weight by cold deionized water pipeline, by dispersant pipeline by weight to polymeric kettle adding 8.75 parts or 10.5 parts of mass percent concentrations are the aqueous dispersant of 4%, by buffer agent pipeline by weight to polymeric kettle adding 1 part or 1.5 parts of mass percent concentrations are the aqueous solution of buffer agent of 10%, make cold deionized water carry aqueous dispersant to enter together with aqueous solution of buffer agent in polymeric kettle, in polymeric kettle, added 410 parts or 420 parts of Vinyl Chloride Monomer simultaneously by monomer line by weight and stir；3rd step, after aqueous dispersant, aqueous solution of buffer agent, cold deionized water and Vinyl Chloride Monomer pan feeding complete, by hot deionized water pipeline by weight to adding 210 parts of hot deionized waters in polymeric kettle and stirring；4th step, hot deionized water pan feeding is the initiator solution of 50% and stirs to addition 0.4 part in polymeric kettle or 0.45 part of mass percent concentration by initiator pipeline by weight after completing, be 0.82MPa or 0.83MPa, temperature at pressure it is reaction 260min or 270min at 56.5 DEG C or 57.5 DEG C, being added 0.25 part or 0.35 part of terminator after reaction by terminator pipeline by weight in polymeric kettle and be uniformly mixing to obtain Corvic, Corvic is discharged by discharging pipeline.
Can according to actual needs, to above-described embodiment 2 or/and embodiment 3 makes further optimization and/or improvements:
As shown in Figure 1, the using method of this polymeric kettle feeding device carries out in the steps below: the first step, smears anti-fouling agent on the inwall of polymeric kettle 1, and controlling pressure in polymeric kettle 1 is-0.07MPa to-0.05MPa；Second step, in polymeric kettle 1,19 tons to 20 tons cold deionized waters are added by cold deionized water pipeline 11, it is the aqueous dispersant of 4% to polymeric kettle 1 adds 875 kilograms to 1050 kilogram-mass percent concentrations by dispersant pipeline 13, it is the aqueous solution of buffer agent of 10% to polymeric kettle 1 adds double centner to 150 kilogram-mass percent concentrations by buffer agent pipeline 14, make cold deionized water carry aqueous dispersant and enter in polymeric kettle 1 together with aqueous solution of buffer agent, in polymeric kettle 1, add 41 tons to 42 tons Vinyl Chloride Monomer by monomer line 3 and stir simultaneously；3rd step, after aqueous dispersant, aqueous solution of buffer agent, cold deionized water and Vinyl Chloride Monomer pan feeding complete, and is stirred to 21 tons of hot deionized waters of addition in polymeric kettle 1 by hot deionized water pipeline 8；4th step, hot deionized water pan feeding is the initiator solution of 50% to 45 kilogram-mass percent concentrations by initiator pipeline 10 and stirs to adding 40 kilograms in polymeric kettle 1 after completing, be 0.82MPa to 0.83MPa, temperature at pressure it is reaction 260min to 270min at 56.5 DEG C to 57.5 DEG C, being added 25 kilograms to 35 kilograms terminators in polymeric kettle 1 by terminator pipeline 4 and be uniformly mixing to obtain Corvic after reaction, Corvic is discharged by discharging pipeline 5.Initiator has added post polymerization still 1 temperature and has reacted design temperature close to or up polymeric kettle 1, starts polyreaction.The Corvic obtained is SG-5 type resin；Anti-fouling agent smears 10 kilograms to 15 kilograms every time；Terminator is existing public reagent.
As shown in Figure 1, the using method of this polymeric kettle feeding device, carry out in the steps below: the first step, the inwall of polymeric kettle 1 is smeared anti-fouling agent, controlling pressure in polymeric kettle 1 is-0.07MPa or-0.05MPa；Second step, in polymeric kettle 1,19 tons or 20 tons of cold deionized waters are added by cold deionized water pipeline 11, by dispersant pipeline 13 to polymeric kettle 1 adding 875 kilograms or 1050 kilogram-mass percent concentrations are the aqueous dispersant of 4%, by buffer agent pipeline 14 to polymeric kettle 1 adding double centner or 150 kilogram-mass percent concentrations are the aqueous solution of buffer agent of 10%, make cold deionized water carry aqueous dispersant and enter in polymeric kettle 1 together with aqueous solution of buffer agent, in polymeric kettle 1, add 41 tons or 42 tons of Vinyl Chloride Monomer by monomer line 3 simultaneously and stir；3rd step, after aqueous dispersant, aqueous solution of buffer agent, cold deionized water and Vinyl Chloride Monomer pan feeding complete, and is stirred to 21 tons of hot deionized waters of addition in polymeric kettle 1 by hot deionized water pipeline 8；4th step, hot deionized water pan feeding is the initiator solution of 50% by initiator pipeline 10 to addition 40 kilograms in polymeric kettle 1 or 45 kilogram-mass percent concentrations and stirs after completing, be 0.82MPa or 0.83MPa, temperature at pressure it is reaction 260min or 270min at 56.5 DEG C or 57.5 DEG C, adding 25 kilograms or 35 kilograms of terminators in polymeric kettle 1 by terminator pipeline 4 after reaction and be uniformly mixing to obtain Corvic, Corvic passes through discharging pipeline 5 and discharges.
As required, the temperature of cold deionized water is 20 DEG C to 25 DEG C；Or/and, the temperature of hot deionized water is 110 DEG C to 120 DEG C.
As required, anti-fouling agent is polyhydric phenols copolymer；Aqueous dispersant is polyvinyl alcohol water solution；Aqueous solution of buffer agent is ammonium bicarbonate aqueous solution；Initiator solution is that cumyl peroxyneodecanoate and peroxy dicarbonate are double; two by volume for the 3:1 aqueous solution being configured to.
As required, stir speed (S.S.) is 124 revs/min to 126 revs/min；Or/and, polymeric kettle 1 is 110m
3
Polymeric kettle.
The Corvic obtained according to the above embodiment of the present invention and the average behavior parameter of the Corvic of existing explained hereafter are shown in Table 1.
As it can be seen from table 1 the above embodiment of the present invention obtain the average viscosity of Corvic, average impurity grain number, average volatile content, mean apparent density, average flake, 100g resin plasticizer average absorption amount, average whiteness and the mean molecule quantity dispersion of distribution respectively 111ml/g, 6,0.12%, 0.52g/ml, 10,24g, 85% and 2.003；And the average viscosity of Corvic of existing explained hereafter, average impurity grain number, average volatile content, mean apparent density, average flake, 100g resin plasticizer average absorption amount, average whiteness and the mean molecule quantity dispersion of distribution respectively 111ml/g, 6,0.15%, 0.52g/ml, 14,24g, 85% and 2.105；The average viscosity of the Corvic that the above embodiment of the present invention obtains, average impurity grain number, mean apparent density, average flake, the average viscosity of the Corvic of 100g resin plasticizer average absorption amount and average whiteness and existing explained hereafter, average impurity grain number, mean apparent density, average flake, 100g resin plasticizer average absorption amount is consistent with average whiteness, but the average volatile content of the Corvic of the average volatile content of the Corvic that the above embodiment of the present invention obtains and the more existing explained hereafter of the mean molecule quantity dispersion of distribution and the mean molecule quantity dispersion of distribution are all low, illustrate that the Corvic that the present invention obtains is more stable compared with the Corvic that prior art produces, performance is better；And the Corvic that the present invention obtains has reached GB top grade product standard.
In the present invention, Vinyl Chloride Monomer, cold deionized water, dispersant and buffer agent are simultaneously introduced, not only save the pan feeding time, also avoid the generation of polychloroethylene with high polymerization degree resin when lower temperature in polymeric kettle 1 pan feeding process, reduce Corvic molecular weight distribution width, make the Corvic performance that the present invention obtains more stable；Pan feeding time of the present invention relatively prior art pan feeding time average shortens 5 minutes/still, calculate with single still production capacity 35t, polymeric kettle 1 stirring motor power 312kw, resin per ton economize on electricity 1.276KW*h, to produce resin 400,000 tons/year calculating, can be economized on electricity the whole year 51.04 ten thousand KW*h, thus having saved cost, improve production efficiency.
Above technical characteristic constitutes embodiments of the invention, and it has stronger adaptability and implementation result, can increase and decrease non-essential technical characteristic according to actual needs, meet the demand of different situations.
Claims (14)
1. the using method of a polymeric kettle feeding device, it is characterised in that carry out in the steps below: the first step, smears anti-fouling agent on the inwall of polymeric kettle, and controlling pressure in polymeric kettle is-0.07MPa to-0.05MPa；Second step, in polymeric kettle, 190 parts to 200 parts cold deionized waters are added by weight by cold deionized water pipeline, it is the aqueous dispersant of 4% to polymeric kettle adds 8.75 parts to 10.5 parts mass percent concentrations by weight by dispersant pipeline, it is the aqueous solution of buffer agent of 10% to polymeric kettle adds 1 part to 1.5 parts mass percent concentration by weight by buffer agent pipeline, make cold deionized water carry aqueous dispersant to enter together with aqueous solution of buffer agent in polymeric kettle, in polymeric kettle, added 410 parts to 420 parts Vinyl Chloride Monomer simultaneously by monomer line by weight and stir；3rd step, after aqueous dispersant, aqueous solution of buffer agent, cold deionized water and Vinyl Chloride Monomer pan feeding complete, by hot deionized water pipeline by weight to adding 210 parts of hot deionized waters in polymeric kettle and stirring；4th step, hot deionized water pan feeding is the initiator solution of 50% and stirs to 0.4 part to 0.45 part mass percent concentration of addition in polymeric kettle by initiator pipeline by weight after completing, be 0.82MPa to 0.83MPa, temperature at pressure it is reaction 260min to 270min at 56.5 DEG C to 57.5 DEG C, being added 0.25 part to 0.35 part terminator after reaction by terminator pipeline by weight in polymeric kettle and be uniformly mixing to obtain Corvic, Corvic is discharged by discharging pipeline.
2. the using method of polymeric kettle feeding device according to claim 1, it is characterised in that carry out in the steps below: the first step, smears anti-fouling agent on the inwall of polymeric kettle, and controlling pressure in polymeric kettle is-0.07MPa to-0.05MPa；Second step, by cold deionized water pipeline to polymeric kettle adds 19 tons to 20 tons cold deionized waters, be the aqueous solution of buffer agent of 10% to polymeric kettle adding 875 kilograms to the aqueous dispersant that 1050 kilogram-mass percent concentrations are 4%, by buffer agent pipeline to polymeric kettle adds double centner to 150 kilogram-mass percent concentrations by dispersant pipeline, make cold deionized water carry aqueous dispersant to enter together with aqueous solution of buffer agent in polymeric kettle, in polymeric kettle, add 41 tons to 42 tons Vinyl Chloride Monomer by monomer line and stir simultaneously；3rd step, after aqueous dispersant, aqueous solution of buffer agent, cold deionized water and Vinyl Chloride Monomer pan feeding complete, and is stirred to 21 tons of hot deionized waters of addition in polymeric kettle by hot deionized water pipeline；4th step, hot deionized water pan feeding is the initiator solution of 50% to 45 kilogram-mass percent concentrations by initiator pipeline and stirs to adding 40 kilograms in polymeric kettle after completing, be 0.82MPa to 0.83MPa, temperature at pressure it is reaction 260min to 270min at 56.5 DEG C to 57.5 DEG C, being added 25 kilograms to 35 kilograms terminators in polymeric kettle by terminator pipeline and be uniformly mixing to obtain Corvic after reaction, Corvic is discharged by discharging pipeline.
3. the using method of polymeric kettle feeding device according to claim 1 and 2, it is characterised in that the temperature of cold deionized water is 20 DEG C to 25 DEG C；Or/and, the temperature of hot deionized water is 110 DEG C to 120 DEG C.
4. the using method of polymeric kettle feeding device according to claim 1 and 2, it is characterised in that anti-fouling agent is polyhydric phenols copolymer；Aqueous dispersant is polyvinyl alcohol water solution；Aqueous solution of buffer agent is ammonium bicarbonate aqueous solution；Initiator solution is that cumyl peroxyneodecanoate and peroxy dicarbonate are double; two by volume for the 3:1 aqueous solution being configured to.
5. the using method of polymeric kettle feeding device according to claim 3, it is characterised in that anti-fouling agent is polyhydric phenols copolymer；Aqueous dispersant is polyvinyl alcohol water solution；Aqueous solution of buffer agent is ammonium bicarbonate aqueous solution；Initiator solution is that cumyl peroxyneodecanoate and peroxy dicarbonate are double; two by volume for the 3:1 aqueous solution being configured to.
6. the using method of the polymeric kettle feeding device according to claim 1 or 2 or 5, it is characterised in that stir speed (S.S.) is 124 revs/min to 126 revs/min；Or/and, polymeric kettle is 110m3Polymeric kettle.
7. the using method of polymeric kettle feeding device according to claim 3, it is characterised in that stir speed (S.S.) is 124 revs/min to 126 revs/min；Or/and, polymeric kettle is 110m3Polymeric kettle.
8. the using method of polymeric kettle feeding device according to claim 4, it is characterised in that stir speed (S.S.) is 124 revs/min to 126 revs/min；Or/and, polymeric kettle is 110m3Polymeric kettle.
9. the using method of the polymeric kettle feeding device according to claim 1 or 2 or 5 or 7 or 8, it is characterised in that this polymeric kettle feeding device includes polymeric kettle and base；Polymeric kettle is fixedly mounted on base, the first feed end and the second feed end it is respectively arranged with on the top of polymeric kettle, first feed end is fixedly connected with monomer line, second feed end is fixedly connected with terminator pipeline, the bottom of polymeric kettle is provided with discharge end, discharge end is fixedly connected with discharging pipeline, discharging pipeline is installed with the first control valve, control the discharging pipeline between valve is installed with threeway at polymeric kettle and first, threeway is fixedly connected with hot deionized water pipeline, hot deionized water pipeline is installed with the second control valve, control the hot deionized water pipeline between valve has been respectively fixedly connected with initiator pipeline and cold deionized water pipeline in threeway and second, cold deionized water pipeline is installed with the 3rd control valve, control the cold deionized water pipeline between valve has been respectively fixedly connected with dispersant pipeline and buffer agent pipeline at hot deionized water pipeline and the 3rd, in monomer line, terminator pipeline, initiator pipeline, dispersant pipeline and buffer agent pipeline are installed with valve respectively.
10. the using method of polymeric kettle feeding device according to claim 3, it is characterised in that this polymeric kettle feeding device includes polymeric kettle and base；Polymeric kettle is fixedly mounted on base, the first feed end and the second feed end it is respectively arranged with on the top of polymeric kettle, first feed end is fixedly connected with monomer line, second feed end is fixedly connected with terminator pipeline, the bottom of polymeric kettle is provided with discharge end, discharge end is fixedly connected with discharging pipeline, discharging pipeline is installed with the first control valve, control the discharging pipeline between valve is installed with threeway at polymeric kettle and first, threeway is fixedly connected with hot deionized water pipeline, hot deionized water pipeline is installed with the second control valve, control the hot deionized water pipeline between valve has been respectively fixedly connected with initiator pipeline and cold deionized water pipeline in threeway and second, cold deionized water pipeline is installed with the 3rd control valve, control the cold deionized water pipeline between valve has been respectively fixedly connected with dispersant pipeline and buffer agent pipeline at hot deionized water pipeline and the 3rd, in monomer line, terminator pipeline, initiator pipeline, dispersant pipeline and buffer agent pipeline are installed with valve respectively.
11. the using method of polymeric kettle feeding device according to claim 4, it is characterised in that this polymeric kettle feeding device includes polymeric kettle and base；Polymeric kettle is fixedly mounted on base, the first feed end and the second feed end it is respectively arranged with on the top of polymeric kettle, first feed end is fixedly connected with monomer line, second feed end is fixedly connected with terminator pipeline, the bottom of polymeric kettle is provided with discharge end, discharge end is fixedly connected with discharging pipeline, discharging pipeline is installed with the first control valve, control the discharging pipeline between valve is installed with threeway at polymeric kettle and first, threeway is fixedly connected with hot deionized water pipeline, hot deionized water pipeline is installed with the second control valve, control the hot deionized water pipeline between valve has been respectively fixedly connected with initiator pipeline and cold deionized water pipeline in threeway and second, cold deionized water pipeline is installed with the 3rd control valve, control the cold deionized water pipeline between valve has been respectively fixedly connected with dispersant pipeline and buffer agent pipeline at hot deionized water pipeline and the 3rd, in monomer line, terminator pipeline, initiator pipeline, dispersant pipeline and buffer agent pipeline are installed with valve respectively.
12. the using method of polymeric kettle feeding device according to claim 6, it is characterised in that this polymeric kettle feeding device includes polymeric kettle and base；Polymeric kettle is fixedly mounted on base, the first feed end and the second feed end it is respectively arranged with on the top of polymeric kettle, first feed end is fixedly connected with monomer line, second feed end is fixedly connected with terminator pipeline, the bottom of polymeric kettle is provided with discharge end, discharge end is fixedly connected with discharging pipeline, discharging pipeline is installed with the first control valve, control the discharging pipeline between valve is installed with threeway at polymeric kettle and first, threeway is fixedly connected with hot deionized water pipeline, hot deionized water pipeline is installed with the second control valve, control the hot deionized water pipeline between valve has been respectively fixedly connected with initiator pipeline and cold deionized water pipeline in threeway and second, cold deionized water pipeline is installed with the 3rd control valve, control the cold deionized water pipeline between valve has been respectively fixedly connected with dispersant pipeline and buffer agent pipeline at hot deionized water pipeline and the 3rd, in monomer line, terminator pipeline, initiator pipeline, dispersant pipeline and buffer agent pipeline are installed with valve respectively.
13. the using method of polymeric kettle feeding device according to claim 9, it is characterised in that be installed with mass flowmenter respectively on monomer line, terminator pipeline, initiator pipeline, dispersant pipeline, buffer agent pipeline, hot deionized water pipeline and cold deionized water pipeline；Or/and, monomer line is installed with check-valves；Or/and, it being installed with agitator bottom polymeric kettle, the stirring end of agitator is positioned at polymeric kettle；Or/and, the inner coil pipe of vertical direction it is installed with in the cavity of polymeric kettle, the liquid feeding end of inner coil pipe is positioned at outside the bottom of polymeric kettle, the liquid outlet of inner coil pipe is positioned at outside the top of polymeric kettle, the outer wall of polymeric kettle is fixedly connected with the outer coil pipe of horizontal direction, the liquid feeding end of outer coil pipe and the liquid outlet of inner coil pipe be fixed together；Or/and, polymeric kettle is 110m3Polymeric kettle.
14. the using method of the polymeric kettle feeding device according to claim 10 or 11 or 12, it is characterised in that be installed with mass flowmenter respectively on monomer line, terminator pipeline, initiator pipeline, dispersant pipeline, buffer agent pipeline, hot deionized water pipeline and cold deionized water pipeline；Or/and, monomer line is installed with check-valves；Or/and, it being installed with agitator bottom polymeric kettle, the stirring end of agitator is positioned at polymeric kettle；Or/and, the inner coil pipe of vertical direction it is installed with in the cavity of polymeric kettle, the liquid feeding end of inner coil pipe is positioned at outside the bottom of polymeric kettle, the liquid outlet of inner coil pipe is positioned at outside the top of polymeric kettle, the outer wall of polymeric kettle is fixedly connected with the outer coil pipe of horizontal direction, the liquid feeding end of outer coil pipe and the liquid outlet of inner coil pipe be fixed together；Or/and, polymeric kettle is 110m3Polymeric kettle.
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| CN105801732B (en) | 2014-12-31 | 2018-03-16 | 青岛阿莫斯资源科技有限公司 | The suspension polymerization preparation method and feeding device of a kind of polyvinyl chloride |
| CN105859928B (en) * | 2016-05-04 | 2017-12-19 | 内蒙古君正化工有限责任公司 | A kind of optimal control method of pvc polymerizer |
| CN109908851A (en) * | 2017-12-12 | 2019-06-21 | 巴斯夫新材料有限公司 | Polymer reactor |
| CN108530569A (en) * | 2017-12-28 | 2018-09-14 | 新疆华泰重化工有限责任公司 | A kind of 110m3The method that polymeric kettle produces SG-5 type polyvinyl chloride |
| CN109289692A (en) * | 2018-09-30 | 2019-02-01 | 鄂尔多斯市君正能源化工有限公司 | A kind of automatic salting device and automatic salt process |
| CN110801794A (en) * | 2019-10-08 | 2020-02-18 | 安徽华塑股份有限公司 | Novel suspension polymerization reaction system for polyvinyl chloride production |
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