CN105854766A - Three-in-one washing kettle for preparing chlorinated polyethylene - Google Patents

Three-in-one washing kettle for preparing chlorinated polyethylene Download PDF

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Publication number
CN105854766A
CN105854766A CN201610338056.7A CN201610338056A CN105854766A CN 105854766 A CN105854766 A CN 105854766A CN 201610338056 A CN201610338056 A CN 201610338056A CN 105854766 A CN105854766 A CN 105854766A
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China
Prior art keywords
tank body
chlorinated polyethylene
layer
still
preparing
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CN201610338056.7A
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Chinese (zh)
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CN105854766B (en
Inventor
易东
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Guangxi Jinhua New Material Technology Co Ltd
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Guangxi Jinhua New Material Technology Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/18Stationary reactors having moving elements inside
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0053Details of the reactor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0053Details of the reactor
    • B01J19/0066Stirrers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/02Apparatus characterised by being constructed of material selected for its chemically-resistant properties
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00Chemical modification by after-treatment
    • C08F8/18Introducing halogen atoms or halogen-containing groups
    • C08F8/20Halogenation
    • C08F8/22Halogenation by reaction with free halogens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049Controlling or regulating processes
    • B01J2219/00051Controlling the temperature
    • B01J2219/00121Controlling the temperature by direct heating or cooling
    • B01J2219/00123Controlling the temperature by direct heating or cooling adding a temperature modifying medium to the reactants

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

The invention provides a three-in-one washing kettle for preparing chlorinated polyethylene, and belongs to the technical field of chemical equipment. The three-in-one washing kettle comprises a tank body, a heating coiled tube and a stirring device, wherein the tank body is wrapped by a heat-preservation layer; a high-temperature and corrosion-resisting layer is arranged on the inner wall of the tank body; a filter is arranged in the position, 1/6-1/4 away from the bottom of the tank body, of the tank body; the heating coiled tube is communicated with the top of the tank body and extends into the tank body; the stirring device comprises a stirring motor arranged outside the tank body, stirring blades arranged inside the tank body, and a rotating shaft connected with both the stirring motor and the stirring blades; surface layers of the heating coiled tube, the rotating shaft and the stirring blades are coated with a high-temperature and corrosion-resisting layer. By adopting the three-in-one washing kettle, three steps of deacidification, neutralization and dealkalization in the deacidification process can be integrated in sequence in the chlorinated polyethylene preparation process, the production equipment and the maintenance cost can be reduced, the material transferring time can be shortened, the production period can be shortened, the production efficiency can be improved, heat can be rapidly conducted, the thermal energy utilization rate is high, and the production energy consumption is low.

Description

Still washed by a kind of the three-in-one of chlorinated polyethylene of preparing
[technical field]
The present invention relates to technical field of chemical, be specifically related to a kind of the three-in-one of chlorinated polyethylene of preparing and wash still.
[background technology]
Chlorinated polyethylene (CPE) is a kind of saturated macromolecular material, has excellent weatherability, resistance to smelly property, chemical-resistant resistance and ageing-resistant performance, and has good oil resistivity, anti-flammability and tinctorial property;Its toughness is good, has the good compatibility with other macromolecular materials, and decomposition temperature is higher.Chlorinated polyethylene, with its distinctive advantage, has been widely used in the fields such as plastics, natural gum, building materials, electromechanics, automobile, military project, has become important production and life material.
The method producing chlorinated polyethylene at present mainly includes solvent method and water phase suspension, and wherein, water phase suspension is most commonly seen.During preparing chlorinated polyethylene by aqueous phase suspension, it is typically to suspend in water or in hydrochloric acid medium polyethylene powder body, in the presence of organic peroxide evocating agent or ultraviolet light, be passed through chlorine, then through deacidification, neutralize, wash, be centrifuged, the operation such as be dried, final obtain chlorinated polyethylene finished product.The method produces chlorinated polyethylene, constant product quality, consumption of raw materials is low, equipment investment is relatively small, but in chlorination reaction process, produce a large amount of low-concentration hcl, processing load weight, need to sequentially pass through deacidification, neutralize, three steps of dealkalize remove, and the step for typically require at three different reactors (deacidification still, neutralize still, dealkalize still) in carry out, wherein, the deacidification of deacidification still is the acidic materials using water-washing method to remove material surface, due in material with a large amount of low-concentration hcls, and deacidification is not required to heating, therefore typically require that equipment acid resistance is corroded, do not make resistant to elevated temperatures requirement;The N-process neutralizing still is the acidic materials in adding by the way of alkali intensification and within material, therefore equipment needs alkali resistance, high temperature resistant, generally use glass steel material at present, neutralize and typically directly pass through discharging opening after reaction terminates by material force feed to dealkalize still, therefore neutralize still and be generally not provided with filter;The dealkalize process of dealkalize still is also that the mode using washing carries out dealkalize, owing to from neutralizing containing substantial amounts of alkali in the material that in still, force feed comes, dealkalize process is without heating, therefore dealkalize still requires alkali resistance, without high temperature resistant.Different equipment is used to carry out deacidification, neutralization, dealkalize successively, although less demanding to each equipment of such mode, but the equipment used is many, increase and produce floor space and cost of equipment maintenance, and increase material transfer time, extend the whole production of chlorinated polyethylene cycle, reduce production efficiency;And existing reactor to be usually present conduction of heat slow, heat utilization rate is low, causes the problem that energy consumption is big.
[summary of the invention]
In view of the foregoing, the present invention provides a kind of the three-in-one of chlorinated polyethylene of preparing to wash still, it can be by chlorinated polyethylene preparation process, after chlorination reaction, the deacidification of material processes deacidification, neutralize, three steps of dealkalize, comprehensively carry out successively in processing means of the present invention, this is for the mode that traditional employing distinct device processes respectively, decrease production equipment, and then correspondingly reduce production floor space and cost of equipment maintenance, and saved the transfer time of material, thus shorten the production cycle of whole chlorinated polyethylene, improve existing process structure, improve production efficiency;And the present invention washes still and passes through to arrange heating coil in tank body, during heating, will add in vapours is led to tank body by coil pipe and directly contact with material to be heated, conduction of heat is fast, and heat utilization rate is high, saves energy consumption.
For reaching above-mentioned purpose, the technical solution adopted in the present invention is:
A kind of three-in-one still of washing preparing chlorinated polyethylene, described three-in-one still of washing includes tank body, heating coil and agitating device;Wherein, the outside of described tank body is coated with heat-insulation layer, and the inwall of tank body is provided with high temperature resistant, anti-corrosion layer, and on tank body, the position from tank base 1/6-1/4 is provided with filter;Described heating coil connects the top of described tank body and extends described tank interior;Described agitating device includes the stirring motor being located at outside tank body, the stirring vane being located in tank body and connects stirring motor and the rotating shaft of stirring vane, and the top layer of described heating coil, rotating shaft and stirring vane is coated with one layer of anti-corrosion layer.
Further, described high temperature resistant, anti-corrosion layer is glass fiber reinforced polyester ether ether ketone layer, SiC reinforcement polyether-ether-ketone layer or carbon fiber reinforced polyether-ether-ketone layer.
Further, described thickness high temperature resistant, anti-corrosion layer is 10-20mm.
Further, described stirring motor is arranged on outside described tank body upper end.
Further, described heating coil extends the position of the bottom 1/5-1/4 from described tank body.
Further, described heating coil is tail end near the position of tank base, and described tail end has on the heating coil of an a length of 1-60cm of joint and offers logical steam hole.
Further, described tank body being evenly arranged multiple described filter, all described filters are arranged in same level.
Further, described heat-insulation layer is adopted as mineral wool or expanded pearlite is cotton.
Further, the top of described tank body offers charging aperture, and the bottom of described tank body offers discharging opening.
Further, the top of described tank body is further opened with manhole.
The method have the advantages that
The invention provides a kind of the three-in-one of chlorinated polyethylene of preparing and wash still, its simple in construction, easy to make, cost is low, and maintenance of equipment is convenient;Wherein, the inwall of described tank body, the rotating shaft of described agitating device and stirring vane all use high temperature resistant, corrosion resistant material to make, and the equipment of can guarantee that can bear deacidification in deacidification processing procedure, neutralization, the acid and alkali corrosion of dealkalize three step and high temperature;Three steps that deacidification processes can comprehensively be carried out in processing means of the present invention successively, for the traditional approach that three equipment need to be used to process respectively, The present invention reduces production equipment, correspondingly reduce production floor space and cost of equipment maintenance, and save material transfer time, and then shorten production cycle of whole chlorinated polyethylene, improve existing process structure, improve production efficiency;And the present invention is when washing still by arranging the heating of described heating coil in described tank body, being passed through by described heating coil and add vapours, add vapours and directly contact with material to be heated in described tank body, conduction of heat is fast, and heat utilization rate is high, saving energy consumption.
[accompanying drawing explanation]
Fig. 1 is a kind of three-in-one structural representation washing still preparing chlorinated polyethylene of the present invention.
The drawing reference numeral explanation of detailed description of the invention:
Tank body 1 Heating coil 2 Logical steam hole 21
Agitating device 3 Stirring motor 31 Rotating shaft 32
Stirring vane 33 Heat-insulation layer 4 Filter 5
Charging aperture 6 Discharging opening 7 Manhole 8
[detailed description of the invention]
Three-in-one the wash still of preparing chlorinated polyethylene a kind of to the present invention with specific embodiment is described further below in conjunction with the accompanying drawings.
Fig. 1 illustrates a kind of three-in-one structural representation washing still preparing chlorinated polyethylene of the present invention.
A kind of three-in-one a kind of embodiment washing still preparing chlorinated polyethylene of the present invention, as shown in Figure 1, this three-in-one still of washing includes tank body 1, heating coil 2 and agitating device 3, wherein, the outside of described tank body 1 is coated with heat-insulation layer 4, it is preferable that described heat-insulation layer uses mineral wool or expanded pearlite cotton to make, insulation during for heating described material in tank, reduces energy loss;The inwall of described tank body is provided with high temperature resistant, anti-corrosion layer, such as glass fiber reinforced polyester ether ether ketone layer, SiC reinforcement polyether-ether-ketone layer or carbon fiber reinforced polyether-ether-ketone layer, it is preferable that described thickness high temperature resistant, anti-corrosion layer is 10-20mm;On described tank body 1, the location arrangements from tank base 1/6-1/4 has filter 5, is preferably evenly arranged multiple described filter 5 in same level, with the discharge of scrub raffinate of being more convenient for;Described heating coil 2 connects the top of described tank body 1 and extends the inside of described tank body 1, is passed through in described tank body 1, with material Direct Contact Heating to be heated for adding vapours;Preferably, logical steam hole 21 offered by the heating coil that the described heating coil 2 tail end bottom tank body 1 has an a length of 1-60cm of joint, to be more conducive to add being passed through of vapours, and make to add vapours and be more uniformly distributed fully with contacting of material to be heated, improve hot biography rate;Described agitating device 3 includes the stirring motor 31 being located at outside tank body, the stirring vane 33 that is located in tank body and connect stirring motor 31 and the rotating shaft 32 of stirring vane 33, described heating coil 2, the top layer of rotating shaft 32 and stirring vane 33 be coated with one layer high temperature resistant, anti-corrosion layer, such as glass fiber reinforced polyester ether ether ketone layer, SiC reinforcement polyether-ether-ketone layer or carbon fiber reinforced polyether-ether-ketone layer, in use can bear the corrosive substance in material with guarantee equipment and withstand high temperature, preferably, described high temperature resistant, the thickness of anti-corrosion layer is 10-20mm.It addition, the top of described tank body 1 offers charging aperture 6, for material and the feeding of cleaning mixture;The bottom of described tank body 1 offers discharging opening 7, the discharge of material after washing deacidification;The top of described tank body 1 is further opened with manhole 8, in order to the installation of equipment and maintenance and the ventilation of described tank body.
This three-in-one still of washing can be by chlorinated polyethylene preparation process, and the deacidification of deacidification processing procedure of material after chlorination reaction, neutralization, three steps of dealkalize are comprehensively carried out the most successively, and its specific operation process is as follows:
When deacidification processes, the one time one time repeated multiple times mode adding clear water washing can be used to carry out washing deacidification, the most first close described discharging opening 7 and described filter 5, by described charging aperture 6, the CPE material of chlorination reaction gained is sent into described tank body 1, then add clear water to certain water level, the material total amount that addition is preferably in described tank body 1 is less than the 2/3 of described tank body 1 effective volume, restart described agitating device 3, described stirring motor 31 drives described rotating shaft 32 to rotate, it is further driven to described stirring vane 33 rotate, stir the material in described tank body 1, it is stirred washing, washing terminates, open described filter 5 to be released by sour water, then turn off described filter 5, add clear water again to certain water level, agitator treating, the most repeated multiple times, until substantially the hydrochloric acid on CPE material surface being removed;May be used without adding water while the mode discharged water carries out washing deacidification, i.e. close described discharging opening 7, open described filter 5, by described charging aperture 6, the CPE material of chlorination reaction gained is sent into described tank body 1, addition is more preferably less than the 2/3 of the effective volume of described tank body 1, then add clear water, the addition of clear water preferably balances with sour water output, open described agitating device 3, it is stirred washing, until substantially the hydrochloric acid on CPE material surface being removed, stopping adds water, the sour water produced is released by described filter 5, deacidification process terminates, carry out next step neutralisation treatment subsequently.
During neutralisation treatment, described discharging opening 7 remains off, close described filter 5, add alkali liquor, then be passed through in described tank body 1 by described heating coil 2 and add vapours, add vapours directly to contact with the material in described tank body 1, boiled the form of alkali by intensification, allow alkali liquor enter the inside of CPE material thus neutralize hydrochloric acid therein, after having neutralized, open described filter 5 and release waste liquid, then carry out next step dealkalize process.
The operation of processed processes similar to deacidification, using the mode adding clear water washing to be removed by the alkali liquor in CPE material, dealkalize terminates, after whole deacidification processing procedure completes, open described discharging opening 7, the processing means that subsequent processing sent into by the CPE material after deacidification is processed.
The present invention prepares the three-in-one still simple in construction of washing of chlorinated polyethylene, and easy to make, cost is low, and maintenance of equipment is convenient.Wherein, the described rotating shaft 32 of the inwall of described tank body 1, described heating coil 2 and described agitating device 3 and described stirring vane 33 all use high temperature resistant, corrosion resistant material to make, and the equipment of can guarantee that can bear deacidification in deacidification processing procedure, neutralization, the acid and alkali corrosion of dealkalize three step and high temperature;Three steps that deacidification processes can comprehensively be carried out in processing means of the present invention successively, for the traditional approach that three equipment need to be used to process respectively, The present invention reduces production equipment, correspondingly reduce production floor space and cost of equipment maintenance, and saved material transfer time, and then shorten production cycle of whole chlorinated polyethylene, improve existing process structure, improve production efficiency;It addition, the three-in-one still of washing of the present invention is by arranging described heating coil 2, during heating in described tank body 1, being passed through in described tank body 1 by described heating coil 2 and add vapours, add vapours and directly contact with material to be heated, conduction of heat is fast, heat utilization rate is high, saves energy consumption.

Claims (10)

1. prepare the three-in-one of chlorinated polyethylene and wash still for one kind, it is characterised in that: described three-in-one still of washing includes tank body, adds hot plate Pipe and agitating device;Wherein, the outside of described tank body is coated with heat-insulation layer, and the inwall of tank body is provided with high temperature resistant, anti-corrosion layer, On tank body, the position from tank base 1/6-1/4 is provided with filter;Described heating coil connects the top of described tank body and extends Described tank interior;Described agitating device includes the stirring motor being located at outside tank body, the stirring vane being located in tank body and connection Stirring motor and the rotating shaft of stirring vane;The top layer of described heating coil, rotating shaft and stirring vane be coated with one layer corrosion-resistant Layer.
Prepare the three-in-one of chlorinated polyethylene the most according to claim 1 and wash still, it is characterised in that: described high temperature resistant, corrosion resistant Erosion layer is glass fiber reinforced polyester ether ether ketone layer, SiC reinforcement polyether-ether-ketone layer or carbon fiber reinforced polyether-ether-ketone layer.
Prepare the three-in-one of chlorinated polyethylene the most according to claim 2 and wash still, it is characterised in that: described high temperature resistant, corrosion resistant The thickness of erosion layer is 10-20mm.
Prepare the three-in-one of chlorinated polyethylene the most according to claim 1 and wash still, it is characterised in that: described stirring motor is arranged Outside described tank body upper end.
Still washed by the three-in-one of chlorinated polyethylene of preparing the most according to claim 1, it is characterised in that: described heating coil is stretched Position to the bottom 1/5-1/4 from described tank body.
Still washed by the three-in-one of chlorinated polyethylene of preparing the most according to claim 1, it is characterised in that: described heating coil leans on The position of nearly tank base is tail end, and described tail end has on the heating coil of an a length of 1-60cm of joint and offers logical steam hole.
Still washed by the three-in-one of chlorinated polyethylene of preparing the most according to claim 1, it is characterised in that: on described tank body uniformly Being disposed with multiple described filter, all described filters are arranged in same level.
Still washed by the three-in-one of chlorinated polyethylene of preparing the most according to claim 1, it is characterised in that: described heat-insulation layer uses Cotton for mineral wool or expanded pearlite.
Still washed by the three-in-one of chlorinated polyethylene of preparing the most according to claim 1, it is characterised in that: the top of described tank body Offering charging aperture, the bottom of described tank body offers discharging opening.
Still washed by the three-in-one of chlorinated polyethylene of preparing the most according to claim 7, it is characterised in that: the top of described tank body Portion is further opened with manhole.
CN201610338056.7A 2016-05-20 2016-05-20 A kind of the three-in-one of haloflex for preparing washes kettle Active CN105854766B (en)

Priority Applications (1)

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CN201610338056.7A CN105854766B (en) 2016-05-20 2016-05-20 A kind of the three-in-one of haloflex for preparing washes kettle

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CN201610338056.7A CN105854766B (en) 2016-05-20 2016-05-20 A kind of the three-in-one of haloflex for preparing washes kettle

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CN105854766B CN105854766B (en) 2018-08-31

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204638193U (en) * 2015-04-08 2015-09-16 青岛永隆化学工业科技有限公司 A kind of automation steam heating pot
CN204865820U (en) * 2015-07-27 2015-12-16 鸿福晶体科技(安徽)有限公司 Rafifinal is reation kettle for hydrolysis reaction

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204638193U (en) * 2015-04-08 2015-09-16 青岛永隆化学工业科技有限公司 A kind of automation steam heating pot
CN204865820U (en) * 2015-07-27 2015-12-16 鸿福晶体科技(安徽)有限公司 Rafifinal is reation kettle for hydrolysis reaction

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