CN109289692A - A kind of automatic salting device and automatic salt process - Google Patents
A kind of automatic salting device and automatic salt process Download PDFInfo
- Publication number
- CN109289692A CN109289692A CN201811161426.XA CN201811161426A CN109289692A CN 109289692 A CN109289692 A CN 109289692A CN 201811161426 A CN201811161426 A CN 201811161426A CN 109289692 A CN109289692 A CN 109289692A
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- pipeline
- automatic
- salt
- water
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/22—Control or regulation
- B01F35/221—Control or regulation of operational parameters, e.g. level of material in the mixer, temperature or pressure
- B01F35/2215—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F21/00—Dissolving
- B01F21/10—Dissolving using driven stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F21/00—Dissolving
- B01F21/30—Workflow diagrams or layout of plants, e.g. flow charts; Details of workflow diagrams or layout of plants, e.g. controlling means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Control Of Non-Electrical Variables (AREA)
Abstract
The present invention provides a kind of automatic salting device, including salt bath, hot desalinized water pipeline and cold desalted water pipeline, the hot desalinized water pipeline and cold desalted water pipeline converge and are connected to charge for remittance pipeline, temperature point is provided on the charge for remittance pipeline, the temperature point converges position at 2 meters or more apart from the hot desalinized water pipeline and cold desalted water pipeline；The charge for remittance pipeline is connected to the top of the salt bath.The present invention also provides a kind of automatic salt process.Automatic salting device proposed by the present invention realizes the Automatic Control for adding salt and water dissolution, improves control precision.During eliminating reaction dissolution early period and builder salts being added, dissolution time inadequate exceeds, reacts abnormality caused by the unqualified plus salt process fluid-tight imprecision of solution temperature, and because of error caused by human factor, and then greatly improve the dissolved efficiency of salt, increase monomer conversion, improve the quality of EPVC product, and high degree alleviates labor intensity.
Description
Technical field
The invention belongs to chemical fields, and in particular to salting device and salt process in Production of PVC.
Background technique
In polyvinyl chloride emulsion polymerization production technology, proportion, physics and chemistry and the addition period for reacting auxiliary agent early period are
The key of production.In order to which auxiliary agent accurately and timely is added in production process, in addition to manually adding to, it is usually additionally provided with pipe-line equipment
Carry out auxiliary addition.Sodium pyrosulfite is first dissolved as solution in salt bath, adds polymeric kettle as reducing agent.Pyrosulfurous acid
Sodium has strong reducing property, should be avoided during preparing solution and contacts with oxidizing substance.On the one hand salt bath is for dissolving salt
Container, on the other hand also and plays a part of seal.In order to avoid the entrance of oxygen, the salt of the polymeric kettle now run dissolves and adds
Enter process to be mostly manual dissolution and be added, salt is added from the preformed hole at the top of salt bath, and solution is sucked from salt trench bottom by valve opening
In polymeric kettle.React early period dissolution and be added builder salts during, dissolution time not enough or exceed, solution temperature is unqualified,
Add salt process fluid-tight imprecision, caused can react abnormal, reduce monomer conversion.With the increase of batch, production is influenced
The quality of product EPVC (paste polyvinyl chloride resin).
24M3Polymeric kettle is the polymeric kettle popularized in current domestic PVC industry, and pipeline setting is mostly identical, manually
Salt, which is added, leads to produce that intensity is big, labor efficiency underground.In order to improve reaction efficiency, save personnel labour, should will to its into
The necessary reform of row.
Summary of the invention
For deficiency existing for this field, the problem to be solved in the present invention is to provide a kind of automatic salting devices.The present invention
Be to solve reaction early period dissolution and be added builder salts during, dissolution time not enough or exceed, solution temperature is unqualified,
Add salt process fluid-tight imprecision, caused reaction is abnormal, reduces monomer conversion.With the increase of batch, product is influenced
The quality of EPVC.
A second object of the present invention is to provide a kind of automatic salt process.
Realize the technical solution of above-mentioned purpose of the present invention are as follows:
A kind of automatic salting device, is used to prepare the salting liquid of PVC paste resin；Including salt bath, hot desalinized water pipeline
With cold desalted water pipeline,
The hot desalinized water pipeline and cold desalted water pipeline converge and are connected to charge for remittance pipeline, are arranged on the charge for remittance pipeline
There is temperature point, the temperature point converges position at 2 meters or more apart from the hot desalinized water pipeline and cold desalted water pipeline；
The charge for remittance pipeline is connected to the top of the salt bath.
The entrance that sodium pyrosulfite is added is provided at the top of salt bath.Entrance is the scallop hole of openable 1/4 circle.
Wherein, the charge for remittance pipeline is also connected with water return pipeline, and water return pipeline is connected to hot desalinized water sink.
A preferred technical solution of the present invention is that the hot desalinized water pipeline and cold desalted water pipeline are DN20 pipe, is converged
Water pipeline is DN80 pipe；Converging position described in the temperature point distance is 2~2.5 meters.
Further, the bottom of the salt bath is provided with wastewater outlet and salting liquid pipeline, and wastewater outlet is connected to waste water
Pipeline；It is provided with program-controlled bottom valve on the salting liquid pipeline, for controlling the fluid-tight of salt bath.
Wherein, branch is connected on the salting liquid pipeline, the branch is placed in above waste liquid tank, the waste liquid tank connection
To waste pipe.
Wherein, far transmission level meter is provided on the salt bath, far transmission level meter and the program-controlled bottom valve interlock.
A kind of automatic salt process, using the automatic salting device, including operation:
Salt bath is added in sodium pyrosulfite manually；
Hot desalinized water pipeline and cold desalted water additional amount are adjusted, temperature of the water temperature control between 30~35 DEG C is controlled
Device；
Stirring is opened, sodium pyrosulfite is dissolved, obtained sodium metabisulfite solution imports synthesis by salting liquid pipeline
The polymeric kettle of polyvinyl chloride.
Return piping is used to reinforce the mobility of water, guarantees the accuracy of water temperature.Specifically,
By temperature be 80 ± 5 DEG C hot desalinized water pipeline and temperature be 20 ± 5 DEG C cold desalted water converge；When water temperature cannot
Water return pipeline is opened when reaching 30~35 DEG C carries out infinite reflux, valve when adjusting temperature reaches requirement, on opening charge for remittance pipeline
Carry out salt dissolution.
Wherein, it is controlled by program-controlled bottom valve and level chain, salt bath has lucky fluid-tight, the height of fluid-tight after guaranteeing charging
For from salt bath slot bottom meter, 15% or more of groove depth.
The beneficial effects of the present invention are:
Automatic salting device proposed by the present invention realizes the Automatic Control for adding salt and water dissolution, improves control essence
Degree.
Paste resin automatic feeding method of the invention, it is molten during eliminating reaction dissolution early period and builder salts being added
It solves the inadequate of time or exceeds, reacts abnormality caused by the unqualified plus salt process fluid-tight imprecision of solution temperature, with
And because of error caused by human factor, and then the dissolved efficiency of salt is greatly improved, increase monomer conversion, changes EPVC
The quality of product, and high degree alleviates labor intensity.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the automatic salting device of the present invention.
In figure, 1 is salt bath, and 2 be hot desalinized water pipeline, and 3 be cold desalted water pipeline, and 4 be charge for remittance pipeline, and 5 be temperature point,
6 be the entrance of sodium pyrosulfite, and 7 be water return pipeline, and 8 be salting liquid pipeline, and 9 be waste pipe；10 be program-controlled bottom valve.
Specific embodiment
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..
In embodiment, unless otherwise specified, used method is the method for this field routine.
Embodiment 1:
Such as Fig. 1, a kind of automatic salting device is used to prepare the salting liquid of synthesizing polyvinyl chloride paste resin；Including salt bath 1,
Hot desalinized water pipeline 2 and cold desalted water pipeline 3,
The hot desalinized water pipeline and cold desalted water pipeline converge and are connected to charge for remittance pipeline 4, set on the charge for remittance pipeline
Be equipped with temperature point 5, the temperature point apart from the hot desalinized water pipeline and cold desalted water pipeline converge position 2 meters with
On.Temperature point 5, the valve on hot desalinized water pipeline and the valve on cold desalted water pipeline reciprocal interlock control.
The charge for remittance pipeline is connected to the top of the salt bath 1.
It is provided with the entrance 6 that sodium pyrosulfite is added at the top of salt bath, is the scallop hole of 1/4 circle, opening can feed.
The charge for remittance pipeline is also connected with 7 water return pipeline of water return pipeline and is connected to the specific the present embodiment of hot desalinized water sink
In, the hot desalinized water pipeline and cold desalted water pipeline are DN20 pipe, and charge for remittance pipeline is DN80 pipe；Temperature point 5 is apart from described
Converging position is 2 meters.
The bottom of salt bath 1 is provided with wastewater outlet and salting liquid pipeline 8 (manages) pipeline, wastewater outlet connection using DN50N3
In waste pipe 9；Program-controlled bottom valve 10 (valve SV-130/B) is provided on the salting liquid pipeline, for controlling the fluid-tight of salt bath 1.
Branch is connected on salting liquid pipeline 8, the branch is placed in above waste liquid tank, and the waste liquid tank is connected to waste water
Pipeline 9.
It is provided on salt bath far transmission level meter (being indicated in figure with LG), far transmission level meter and the program-controlled bottom valve interlocking (figure
Middle polyline indicates interlocked control).
A kind of automatic salt process, using the automatic salting device, including operation:
Salt bath is added in sodium pyrosulfite manually；
Hot desalinized water pipeline and cold desalted water additional amount are adjusted, water temperature is controlled into the temperature between 30~35 DEG C and is controlled
Device；
Stirring is opened, sodium pyrosulfite is dissolved, obtained sodium metabisulfite solution imports synthesis by salting liquid pipeline
The polymeric kettle of polyvinyl chloride.
Water-circulation pipe is used to reinforce the mobility of water, guarantees the accuracy of water temperature.It is 80 ± 2 DEG C of hot desalinized waters by temperature
The cold desalted water that pipeline and temperature are 20 ± 5 DEG C converges.Water return pipeline is opened when water temperature cannot reach 30~35 DEG C to carry out entirely
Reflux, when adjusting temperature reaches requirement, the valve opened on charge for remittance pipeline carries out salt dissolution.
It is controlled by program-controlled bottom valve and level chain, salt bath has lucky fluid-tight after guaranteeing charging.The height of solution is from salt
15% or more the groove depth that slot slot bottom is up counted.
Comparative example:
The water of dissolving salt is manually added before transformation, and the water temperature of dissolving salt is difficult to control first, may be due to temperature
Spend it is undesirable cause dissolution be not thorough；Secondly water is difficult to control, and may cause and hypervolia or very few is added.Simultaneously
Air may be caused to be inhaled into polymeric kettle due to manually causing liquid level too low again due to being manually added polymeric kettle.
Above embodiment is only that the preferred embodiment of invention is described, and is not carried out to the scope of the present invention
It limits, without departing from the spirit of the design of the present invention, this field ordinary engineering and technical personnel is to technical solution of the present invention
The all variations and modifications made, should fall within the scope of protection determined by the claims of the present invention.
Claims (9)
1. a kind of automatic salting device, is used to prepare the salting liquid of PVC paste resin；It is characterised in that it includes salt bath, heat
Desalted water pipeline and cold desalted water pipeline,
The hot desalinized water pipeline and cold desalted water pipeline converge and are connected to charge for remittance pipeline, are provided with temperature on the charge for remittance pipeline
Measuring point is spent, the temperature point converges position at 2 meters or more apart from the hot desalinized water pipeline and cold desalted water pipeline；
The charge for remittance pipeline is connected to the top of the salt bath.
2. automatic salting device according to claim 1, which is characterized in that the charge for remittance pipeline is also connected with return pipe
Road, water return pipeline are connected to hot desalinized water sink.
3. automatic salting device according to claim 1, which is characterized in that the hot desalinized water pipeline and cold desalting pipe
Road is DN20 pipe, and charge for remittance pipeline is DN80 pipe；Converging position described in the temperature point distance is 2~2.5 meters.
4. described in any item automatic salting devices according to claim 1~3, which is characterized in that the bottom of the salt bath is arranged
There are wastewater outlet and salting liquid pipeline, wastewater outlet is connected to waste pipe；It is provided with program-controlled bottom valve on the salting liquid pipeline,
For controlling the fluid-tight of salt bath.
5. automatic salting device according to claim 4, which is characterized in that it is connected with branch on the salting liquid pipeline,
The branch is placed in above waste liquid tank, and the waste liquid tank is connected to waste pipe.
6. automatic salting device according to claim 4, which is characterized in that it is provided with far transmission level meter on the salt bath,
Far transmission level meter and the program-controlled bottom valve interlock.
7. a kind of automatic salt process, which is characterized in that use the described in any item automatic salting devices of claim 1-5, packet
Include operation:
Salt bath is added in sodium pyrosulfite manually；
Hot desalinized water pipeline and cold desalted water additional amount are adjusted, water temperature is controlled into the temperature controller between 30~35 DEG C；
Stirring is opened, sodium pyrosulfite is dissolved, obtained sodium metabisulfite solution imports synthesis polychlorostyrene by salting liquid pipeline
The polymeric kettle of ethylene.
8. automatic salt process according to claim 7, which is characterized in that the hot desalinized water pipe for being 80 ± 5 DEG C by temperature
The cold desalted water that road and temperature are 20 ± 5 DEG C converges；Water return pipeline is opened when water temperature cannot reach 30~35 DEG C to be returned entirely
Stream, when adjusting temperature reaches requirement, the valve opened on charge for remittance pipeline carries out salt dissolution.
9. automatic salt process according to claim 7, which is characterized in that it is controlled by program-controlled bottom valve and level chain,
Salt bath has lucky fluid-tight after guaranteeing charging, and the height of fluid-tight is from salt bath slot bottom meter, 15% or more of groove depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811161426.XA CN109289692A (en) | 2018-09-30 | 2018-09-30 | A kind of automatic salting device and automatic salt process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811161426.XA CN109289692A (en) | 2018-09-30 | 2018-09-30 | A kind of automatic salting device and automatic salt process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109289692A true CN109289692A (en) | 2019-02-01 |
Family
ID=65161595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811161426.XA Pending CN109289692A (en) | 2018-09-30 | 2018-09-30 | A kind of automatic salting device and automatic salt process |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0611187A (en) * | 1992-06-25 | 1994-01-21 | Rinnai Corp | Bypass mixing system hot-water supplier |
| CN101464051A (en) * | 2007-12-19 | 2009-06-24 | 林内株式会社 | Hot water supply apparatus |
| CN102614791A (en) * | 2012-03-30 | 2012-08-01 | 神华集团有限责任公司 | Dissolving device |
| CN202427369U (en) * | 2012-01-13 | 2012-09-12 | 湖北中烟工业有限责任公司 | Rapid salt-dissolving device for water softening equipment of boiler |
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| CN202849294U (en) * | 2012-10-11 | 2013-04-03 | 江苏省格林艾普化工股份有限公司 | Polymerization kettle feeding device system for producing polyvinyl chloride |
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| CN206648313U (en) * | 2017-03-31 | 2017-11-17 | 李俊然 | A kind of novel water-saving water heater |
| CN207446211U (en) * | 2017-10-30 | 2018-06-05 | 汇智工程科技股份有限公司 | Polymeric kettle thermostatic control system |
| CN207680558U (en) * | 2017-12-22 | 2018-08-03 | 浙江迦南科技股份有限公司 | A kind of automatic slurry-distributing system for heating and measuring |
| CN209254662U (en) * | 2018-09-30 | 2019-08-16 | 鄂尔多斯市君正能源化工有限公司 | A kind of automatic salting device |
-
2018
- 2018-09-30 CN CN201811161426.XA patent/CN109289692A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0611187A (en) * | 1992-06-25 | 1994-01-21 | Rinnai Corp | Bypass mixing system hot-water supplier |
| CN101464051A (en) * | 2007-12-19 | 2009-06-24 | 林内株式会社 | Hot water supply apparatus |
| CN202427369U (en) * | 2012-01-13 | 2012-09-12 | 湖北中烟工业有限责任公司 | Rapid salt-dissolving device for water softening equipment of boiler |
| CN102614791A (en) * | 2012-03-30 | 2012-08-01 | 神华集团有限责任公司 | Dissolving device |
| CN202741022U (en) * | 2012-08-07 | 2013-02-20 | 上海嘉麟杰纺织品股份有限公司 | Intelligent automatic dye dissolving device |
| CN202849294U (en) * | 2012-10-11 | 2013-04-03 | 江苏省格林艾普化工股份有限公司 | Polymerization kettle feeding device system for producing polyvinyl chloride |
| CN104028173A (en) * | 2014-05-28 | 2014-09-10 | 新疆中泰化学股份有限公司 | Polymerizer feeding device and using method thereof |
| CN206648313U (en) * | 2017-03-31 | 2017-11-17 | 李俊然 | A kind of novel water-saving water heater |
| CN207446211U (en) * | 2017-10-30 | 2018-06-05 | 汇智工程科技股份有限公司 | Polymeric kettle thermostatic control system |
| CN207680558U (en) * | 2017-12-22 | 2018-08-03 | 浙江迦南科技股份有限公司 | A kind of automatic slurry-distributing system for heating and measuring |
| CN209254662U (en) * | 2018-09-30 | 2019-08-16 | 鄂尔多斯市君正能源化工有限公司 | A kind of automatic salting device |
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Application publication date: 20190201 |
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| RJ01 | Rejection of invention patent application after publication |