CN214863531U - Can preheat reaction medium's chlorine vinegar copolymer resin apparatus for producing - Google Patents
Can preheat reaction medium's chlorine vinegar copolymer resin apparatus for producing Download PDFInfo
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- CN214863531U CN214863531U CN202121133775.8U CN202121133775U CN214863531U CN 214863531 U CN214863531 U CN 214863531U CN 202121133775 U CN202121133775 U CN 202121133775U CN 214863531 U CN214863531 U CN 214863531U
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Abstract
The utility model belongs to the technical field of chlorine vinegar copolymerization resin, a can preheat chlorine vinegar copolymerization resin apparatus for producing of reaction medium is provided, including two at least storage tanks, two at least raw material pumps, reation kettle and preheating device, the storage tank is connected to the one end of every raw material pump, and other end connection reation kettle, preheating device connects reation kettle, preheating device is used for holding preheating reaction medium. The utility model provides a can preheat reaction medium's chlorine vinegar copolymerization resin production system can effectively avoid producing the side reaction because of reation kettle intensification in-process gradually, and then causes the low or unstable problem of result whiteness degree, installs rational in infrastructure moreover, and is energy-concerving and environment-protective, has good social.
Description
Technical Field
The invention relates to the technical field of chlorine-vinegar copolymer resin, in particular to a chlorine-vinegar copolymer resin production device capable of preheating a reaction medium.
Background
Vinyl chloride-vinyl acetate copolymer (LC-201), abbreviated as vinyl chloride-vinyl acetate copolymer resin, is widely used in the production of high-grade plastic composite ink for manufacturing records, high-grade floor materials, toys, spinning, coatings and the like.
In the existing production equipment, the raw materials are generally added into a reaction kettle at normal temperature, then the temperature rise reaction is carried out, in the heating and temperature rise process, different reactions can occur among reactants along with the change of temperature conditions, the molecular chains in the obtained product are widely distributed, the product purity is low, the whiteness is unstable, and in addition, the energy consumption is higher because a slow temperature rise mode is adopted in the reaction process.
Therefore, it is necessary to provide an improved apparatus for producing a copolymer resin of vinyl chloride and acetic acid.
Disclosure of Invention
Aiming at the problems and the defects in the related technology, the invention provides the device for producing the chlorine-vinegar copolymer resin, which can preheat the reaction medium, so as to avoid the problems of low product purity and unstable whiteness caused by side reaction in the gradual temperature rise process of a reaction kettle, and the device has the advantages of reasonable structure, energy conservation, environmental protection and good social benefit.
The technical scheme provided by the invention is that the chlorine-vinegar copolymer resin production device capable of preheating the reaction medium comprises at least two storage tanks, at least two raw material pumps, a reaction kettle and a preheating device, wherein one end of each raw material pump is connected with the storage tanks, the other end of each raw material pump is connected with the reaction kettle, the preheating device is connected with the reaction kettle, and the preheating device is used for preheating and storing the reaction medium.
In one embodiment, the preheating device has an automatic temperature control system for controlling the temperature of the preheated reaction medium.
In one embodiment, the preheating device has a metering pump for metering the amount of reaction medium.
In one embodiment, the preheating device comprises a reaction medium storage chamber and a steam generator, the steam generator is arranged outside the reaction medium storage chamber, the reaction medium storage chamber is connected with the top of the steam generator in a sealing mode, and a cavity is formed between the steam generator and the reaction medium storage chamber.
In one embodiment, the preheating device adopts a steam heating mode.
In one embodiment, the preheating device is connected with the reaction kettle through a conveying pipeline, and a valve is arranged on the conveying pipeline.
In one embodiment, the reaction vessel has a stirring device therein.
In one embodiment, the reaction medium is water.
Compared with the prior art, the invention has the beneficial effects that:
1. can avoid in the traditional reaction unit, adding into reation kettle with reaction raw materials and reaction medium, need last intensification gradually, in the reaction process, because of under the different temperature conditions, can be along with taking place different chemical reaction, and then produce more accessory substance, cause the low or unstable scheduling problem of required product whiteness degree.
2. The device provided by the utility model is rational in infrastructure, and energy-concerving and environment-protective has good practical application and worth and social.
3. The utility model discloses a heating methods of steam heating makes reaction medium be heated evenly, and heating efficiency is high.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural view of a production apparatus of the present invention;
FIG. 2 is a schematic view of a partial structure of a steam generator according to the present invention;
fig. 3 is a schematic flow chart of the production process of the present invention.
Reference numerals:
101-preheating device, 102-conveying pipeline, 103-first feed valve, 201-stirring device, 202-reaction kettle, 203-discharge valve, 1011-reaction medium storage cavity, 1012-cavity and 1013-steam generator
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
As shown in fig. 1, in an exemplary embodiment of the present invention, the apparatus for producing a vinyl chloride-vinyl acetate copolymer resin capable of preheating a reaction medium comprises: four storage tanks (not shown in the figure), reation kettle 202 and preheating device 101, raw materials pump (not shown in the figure) is connected to every storage tank one end, and reation kettle 202 is connected to the other end, and preheating device 101 passes through pipeline 102 and connects reation kettle 202, be equipped with first feed valve 103 on the pipeline.
The storage tank not shown in the figure refers to any type of storage tank which can be used for storing chemical substances, wherein the chemical substances in the embodiment refer to vinyl chloride monomer, vinyl acetate, a dispersing agent and an initiator, and the reaction raw materials are pumped into the reaction kettle through a raw material pump. The feed pump not shown in the drawings is a conventional feed pump in the field of chemical plants.
Referring to fig. 1 and 2, in an exemplary embodiment, the preheating device 101 is a steam heating type, the preheating device 101 includes a reaction medium storage chamber 1011 and a steam generator 1013, and a cavity 1012 formed by the two, the steam generator 1013 is disposed outside the reaction medium storage chamber 1011, and the reaction medium storage chamber is hermetically connected with the top of the steam generator.
The steam generator 1013 has uniformly distributed air outlets, fig. 2 only shows a partial structure of the steam generator, and the air outlets at other positions are distributed as in fig. 2, so that steam can smoothly pass through the air outlets, and the reaction medium in the reaction medium storage cavity 1011 is uniformly heated. Preheating device 101 is carrying out the in-process that heats, and automatic temperature control system discerns and control preheats reaction medium's temperature, and when the temperature reached preset temperature, preheating device 101 got into the heat preservation mode, opened first feed valve 103, and the measuring pump was opened, and the required reaction medium's of measurement reaction quantity to carry reation kettle 202 with reaction medium through pipeline 102, used reaction medium is water in the embodiment, of course, the utility model provides a preheating device also can be used for the storage to preheat other reaction solvent except water.
In an exemplary embodiment, a stirring rod is disposed in the reaction vessel 202 for stirring the reaction materials sufficiently and uniformly to allow the raw materials to react sufficiently, and a discharge valve is disposed at the lower end of the reaction vessel 202 for discharging the product after the reaction is completed and performing the next operation.
In an exemplary embodiment, the present invention provides a method for using a resin production apparatus for a vinyl chloride-vinyl acetate copolymer, which can preheat a reaction medium, as follows:
the raw material pump is started, raw materials in the storage tank comprise vinyl chloride monomer (reactant 1), vinyl acetate (reactant 2), a dispersing agent and an initiator, the raw materials are pumped into the reaction kettle, meanwhile, the preheating temperature of a reaction medium is set to be 65 ℃ through a temperature control system in the preheating device, the preheating device is started, when the temperature control system identifies that the temperature of the reaction medium reaches the preset temperature of 65 ℃, the preheating device 101 enters a heat preservation mode, the first feeding valve 103 is started, the metering pump meters the feeding amount and pumps the reaction medium into the reaction kettle, and the reaction medium used in the embodiment is water. Vinyl chloride monomer, vinyl acetate, dispersant, initiator and water are polymerized in a reaction kettle without external heat source to obtain the vinyl chloride-vinyl acetate copolymer resin.
Through using the utility model provides a production device, according to the process flow that provides in this embodiment, carry out the whiteness degree test to the chlorine vinegar copolymer resin that obtains in this embodiment and the chlorine vinegar copolymer resin who prepares through conventional method, the test result is as follows:
and (3) testing the whiteness of the product:
through the above exemplary embodiment, the production device provided by the utility model can avoid the problems that in the traditional reaction device, the reaction raw materials and the reaction medium are added into the reaction kettle and need to be heated gradually and continuously, and in the heating process, different chemical reactions are accompanied due to the continuous change of the temperature, so that more byproducts are generated, and the whiteness of the required products is low or unstable; the device provided by the embodiment has the advantages of reasonable structure, energy conservation, environmental protection and good practical application value and social benefit; the heating mode of steam heating is adopted, so that the reaction medium is heated uniformly, and the heating efficiency is high.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
Descriptions in this specification as relating to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to any indicated technical feature or quantity. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
In the embodiments of the present invention, unless otherwise specifically stated or limited, the terms "having," "mounting," "connecting," and the like are to be construed broadly, e.g., "fixed" may be fixedly connected, or detachably connected, or integrated; the connection may be a mechanical connection or an electrical connection. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. The utility model provides a can preheat chlorine vinegar copolymer resin apparatus for producing of reaction medium which characterized in that, includes two at least storage tanks, two at least raw material pumps, reation kettle and preheating device, the storage tank is connected to the one end of every raw material pump, and reation kettle is connected to the other end, preheating device connects reation kettle, preheating device is used for preheating and storage reaction medium.
2. The apparatus for producing a vinyl chloride-vinyl acetate copolymer resin having a preheatable reaction medium as claimed in claim 1, wherein said preheating means has an automatic temperature control system for controlling the temperature of the preheated reaction medium.
3. The apparatus for producing a vinyl chloride-acetate copolymer resin with a preheatable reaction medium as claimed in claim 1, wherein said preheating means has a metering pump for metering the amount of the reaction medium.
4. The apparatus for producing a vinyl chloride-co-polymer resin capable of preheating a reaction medium according to claim 1, wherein the preheating means comprises a reaction medium storage chamber and a steam generator, the steam generator is disposed outside the reaction medium storage chamber, the reaction medium storage chamber is hermetically connected to a top of the steam generator, and a cavity is formed between the steam generator and the reaction medium storage chamber.
5. The apparatus for producing a vinyl chloride-acetate copolymer resin with a preheatable reaction medium as claimed in claim 4, wherein said preheating means is steam heating.
6. The apparatus for producing a vinyl chloride-vinyl acetate copolymer resin with a preheatable reaction medium as claimed in claim 1, wherein the preheating apparatus is connected to the reaction vessel through a transfer line, and the transfer line is provided with a valve.
7. The apparatus for producing a vinyl chloride-acetate copolymer resin with a preheatable reaction medium as claimed in claim 1, wherein the reaction vessel is equipped with a stirring device.
8. The apparatus for producing a vinyl chloride-vinyl acetate copolymer resin having a preheatable reaction medium according to any one of claims 1 to 6, wherein the reaction medium is water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121133775.8U CN214863531U (en) | 2021-05-25 | 2021-05-25 | Can preheat reaction medium's chlorine vinegar copolymer resin apparatus for producing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121133775.8U CN214863531U (en) | 2021-05-25 | 2021-05-25 | Can preheat reaction medium's chlorine vinegar copolymer resin apparatus for producing |
Publications (1)
| Publication Number | Publication Date |
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| CN214863531U true CN214863531U (en) | 2021-11-26 |
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| CN202121133775.8U Active CN214863531U (en) | 2021-05-25 | 2021-05-25 | Can preheat reaction medium's chlorine vinegar copolymer resin apparatus for producing |
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| CN (1) | CN214863531U (en) |
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2021
- 2021-05-25 CN CN202121133775.8U patent/CN214863531U/en active Active
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