WO2020133074A1 - 一种粘合剂连续生产系统 - Google Patents

一种粘合剂连续生产系统 Download PDF

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Publication number
WO2020133074A1
WO2020133074A1 PCT/CN2018/124379 CN2018124379W WO2020133074A1 WO 2020133074 A1 WO2020133074 A1 WO 2020133074A1 CN 2018124379 W CN2018124379 W CN 2018124379W WO 2020133074 A1 WO2020133074 A1 WO 2020133074A1
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Prior art keywords
regulating valve
thermometer
valve
adhesive
circulation pump
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PCT/CN2018/124379
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English (en)
French (fr)
Inventor
赵会岩
张志胜
赵海林
贾卫东
张玉红
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山东万圣博化工有限公司
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Priority to PCT/CN2018/124379 priority Critical patent/WO2020133074A1/zh
Publication of WO2020133074A1 publication Critical patent/WO2020133074A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/08—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles
    • B01J8/10—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles moved by stirrers or by rotary drums or rotary receptacles or endless belts

Definitions

  • the invention relates to the technical field of adhesive production, in particular to an adhesive continuous production system.
  • the invention provides an adhesive production device which adopts automatic control and can simultaneously produce liquid adhesives and solid adhesives, thereby improving the stability of product quality and equipment utilization.
  • the specific technical solution is a continuous production system for adhesives, including: methylol reaction system, etherification reaction system, stirring and drying system and control system,
  • the methylol reaction system includes: a first reaction tank, a first agitator, a first regulating valve, a first thermometer, a first on-off valve and a first circulation pump, a first heat exchanger, a second regulating valve and a first Two thermometer
  • the etherification reaction system includes: a second reaction tank, a second agitator, a third regulating valve, a third thermometer, a second on-off valve, a second circulation pump, a filter, a second heat exchanger, a fourth regulating valve, a first Four thermometers, methanol storage tank, liquid adhesive storage tank, third on-off valve, third circulation pump, fourth on-off valve;
  • the mixing and drying system includes: adhesive regulating valve, adhesive flow meter, mixer, screw, feeder, insert valve, dryer, mixing paddle, mixing shaft, mixing motor, discharge port;
  • the control system includes: touch screen and controller.
  • the first reaction tank is a hydroxymethyl reaction vessel, and the first adjustment valve is used to adjust the steam flow to ensure the temperature stability in the first reaction tank.
  • the first adjustment valve is connected to the jacket of the first reaction tank through a pipeline to control the jacket
  • the first thermometer is installed on the first reaction tank to measure the temperature of the reactants in the first reaction tank;
  • thermometer and the first regulating valve are respectively connected to the controller, and the controller performs PID control on the first regulating valve according to the actual temperature value of the first thermometer and the process setting value to ensure the temperature in the first reaction tank Consistent with process setting value.
  • the second regulating valve is used to regulate the refrigerant flow in the first heat exchanger
  • the first circulating pump is connected to the first heat exchanger through the pipeline
  • the second regulating valve exchanges heat with the first heat exchanger through the pipeline Connected to the heat exchanger to control the flow of the cooling medium.
  • the second thermometer is installed on the pipeline between the first heat exchanger and the second reaction tank to measure the temperature value of the material after heat exchange;
  • thermometer and the second regulating valve are respectively connected to the controller, and the controller performs PID control on the second regulating valve according to the actual temperature value of the second thermometer and the process setting value to ensure that the first heat exchanger passes The material temperature after heat exchange is consistent with the process setting value.
  • the second reaction tank is an etherification reaction vessel.
  • the third regulating valve is used to adjust the steam flow to ensure the temperature stability in the first reaction tank.
  • the third regulating valve is connected to the jacket of the second reaction tank through a pipeline to control the inside of the jacket
  • the third thermometer is installed on the second reaction tank to measure the temperature of the reactants in the second reaction tank;
  • controller performs PID control on the third regulating valve according to the actual temperature of the third thermometer and the process setting value to ensure that the reaction temperature in the second reaction tank is consistent with the process setting value.
  • the second heat exchanger is a cooling heat exchanger, which is used to condense the methanol evaporated in the etherification reaction.
  • the condensed methanol is stored in a methanol storage tank, and the resulting liquid binder passes through the first
  • the second circulation pump is sent to the liquid adhesive storage tank for storage.
  • the second circulation pump is connected to the second heat exchanger through the pipeline, the fourth regulating valve is connected to the second heat exchanger through the pipeline to control the flow rate of the cooling medium, and the fourth thermometer is installed in the pipe of the second heat exchanger and the methanol storage tank On the way, measure the material temperature value of the heat exchanger after heat exchange;
  • controller performs PID control on the fourth regulating valve according to the value of the fourth thermometer and the process setting value, and controls the condensation temperature of the second heat exchanger.
  • the second circulation pump is connected to the filter through the pipeline, the filter is connected to the liquid adhesive storage tank, and the third circulation pump is connected to the fourth switching valve and the adhesive regulating valve respectively;
  • the fourth on-off valve needs to be opened, and if the solid powder adhesive is to be produced, the adhesive in the liquid adhesive storage tank is transferred to the mixer Mix with carbon black.
  • the adhesive regulating valve and adhesive flow meter are installed on the pipeline connecting the third circulation pump and the mixer;
  • the screw is a twin screw, which can be installed in the mixer for relative rotation;
  • the plug-in valve is installed at the connection between the mixer and the dryer inlet;
  • the stirring paddle is installed on the stirring shaft, which is driven to rotate by the stirring motor;
  • the adhesive regulating valve, adhesive flow meter, feeder, and plug-in valve are respectively connected to the controller.
  • the controller performs PID control on the adhesive regulating valve according to the adhesive flowmeter, and the controller controls the feeder The amount of material is controlled.
  • the controller controls the flow rate of the liquid binder and the amount of carbon black in the feeder according to the ratio required by the process.
  • the well-matched binder and carbon black pass through the binder pipe and
  • the carbon black silo enters the mixing device, and the raw materials are mixed by the shear of the twin screw, so that the mixing between the materials is more complete, and the mixed materials do not agglomerate.
  • the material mixed by the mixing device enters the drying device, after continuous stirring and drying, the material opening is opened to obtain the final solid powder binder.
  • the present invention uses a liquid-solid integrated method to produce the adhesive, the produced liquid adhesive and the solid adhesive have stable quality, and the solid adhesive does not produce lumps And, it is closed in the production process, will not pollute the workshop, the production environment is better, the equipment is simple, the operation is convenient, and the equipment utilization rate is high.
  • FIG. 1 is a schematic diagram of an adhesive production device of the present invention.
  • FIG. 2 is a schematic diagram of the control system of the present invention.
  • a continuous production system of adhesive includes a methylol reaction system, an etherification reaction system, a stirring and drying system and a control system.
  • the methylol reaction system includes: a first reaction tank 101, a first agitator 102, a first regulating valve 103, a first thermometer 104, a first on-off valve 105 and a first circulation pump 106, a first heat exchanger 202 , The second regulating valve 201 and the second thermometer 203;
  • the etherification reaction system includes: a second reaction tank 301, a second agitator 302, a third regulating valve 303, a third thermometer 304, a second on-off valve 305, a second circulation pump 306, a filter 307, a second heat exchanger 401, fourth regulating valve 402, fourth thermometer 403, methanol storage tank 404, liquid adhesive storage tank 501, third switching valve 502, third circulation pump 503, fourth switching valve 504;
  • the mixing and drying system includes: adhesive regulating valve 603, adhesive flow meter 604, mixer 601, screw 602, feeder 605, plug-in valve 702, dryer 701, stirring paddle 703, stirring shaft 705, Stirring motor 706, feed opening 704;
  • the control system includes: a touch screen 801 and a controller 901.
  • the first reaction tank 101 is a hydroxymethyl reaction vessel, and the first adjustment valve 103 is used to adjust the steam flow rate to ensure the temperature stability in the first reaction tank 101.
  • the first adjustment valve 103 is jacketed with the first reaction tank 101 through a pipeline Connect and control the steam flow in the jacket.
  • the first thermometer 104 is installed on the first reaction tank 101 to measure the temperature of the reactants in the first reaction tank 101;
  • the first thermometer 104 and the first regulating valve 103 are respectively connected to the controller 901, and the controller 901 performs PID control on the first regulating valve 103 according to the actual temperature value of the first thermometer 104 and the process setting value to ensure the first reaction
  • the temperature in the tank 101 is consistent with the process setting value.
  • the first circulation pump 106 is connected to the first heat exchanger 202 through a pipe
  • the second regulator valve 201 is connected to the first heat exchanger 202 through a pipe to control the flow rate of the cooling medium
  • the second thermometer 203 Installed on the pipeline of the first heat exchanger 202 and the second reaction tank 301, measuring the temperature value of the material after heat exchange;
  • the second thermometer 203 and the second regulating valve 201 are respectively connected to the controller 901, and the controller 901 performs PID control on the second regulating valve 201 according to the actual temperature value of the second thermometer 203 and the process setting value to ensure the first change
  • the material temperature of the heater 202 after heat exchange is consistent with the process setting value.
  • the second reaction tank 301 is an etherification reaction vessel
  • the third regulating valve 303 is used to adjust the steam flow rate to ensure the temperature stability in the second reaction tank 301
  • the third regulating valve 303 is connected to the jacket of the second reaction tank 301 through a pipeline
  • the third thermometer 304 is installed on the second reaction tank 301, and the temperature of the reactant in the second reaction tank 301 is measured; the controller 901 adjusts the temperature according to the actual temperature of the third thermometer 304 and the process setting value.
  • the three regulating valves 303 perform PID control to ensure that the reaction temperature in the second reaction tank 301 matches the process setting value.
  • the second heat exchanger 401 is a temperature-reducing heat exchanger for condensing the methanol distilled from the etherification reaction, and the condensed methanol is stored in a methanol storage tank 404, and the resulting product liquid binder It is sent to the liquid adhesive storage tank 501 by the second circulation pump 306 and stored.
  • the second circulation pump 306 is connected to the second heat exchanger 401 through a pipe
  • the fourth regulating valve 402 is connected to the second heat exchanger 401 through a pipe, and controls the flow rate of the cooling medium
  • the fourth thermometer 403 is installed in the second heat exchanger 401
  • the controller 901 performs PID control on the fourth regulating valve 402 according to the value of the fourth thermometer 403 and the process setting value, and controls the second heat exchanger 401 Condensation temperature.
  • the second circulation pump 306 is connected to the filter 307 through a pipeline, the filter 307 is connected to the liquid adhesive storage tank 501, and the third circulation pump 503 is connected to the adhesive regulating valve 603 and the fourth switching valve 504, respectively;
  • the fourth on-off valve 504 needs to be opened, and if solid powder binder is to be produced, the binder in the liquid binder storage tank 501 is transferred to the mixer 601 and carbon Black to mix.
  • the adhesive regulating valve 603 and the adhesive flow meter 604 are installed on the pipeline connecting the third circulation pump 503 and the mixer 601;
  • the screw 602 is a twin screw, which can be installed in the mixer 601 to rotate relative to each other;
  • the plug-in valve 702 is installed at the inlet connection of the mixer 601 and the dryer 701;
  • the stirring blade 703 is installed on the stirring shaft 705, and the stirring shaft 705 is driven to rotate by the stirring motor 706;
  • the adhesive regulating valve 603, the adhesive flow meter 604, the feeder 605, and the plug-in valve 702 are respectively connected to the controller 901, and the controller 901 performs PID on the adhesive regulating valve 603 according to the adhesive flow meter 604 Control, the controller 901 controls the feeding amount of the feeder 605.
  • the controller 901 controls the stirring, and the steam flow is controlled by the first regulating valve 103 to adjust the temperature in the tank to 75 °C, add catalyst for one hour, the first circulation pump 106 will transfer the reaction material in the tank to the first heat exchanger 202, the controller 901 controls the flow of coolant through the second regulating valve 201, and the temperature of the material is reduced to 50°C .
  • the material transferred into the second reaction tank 301 undergoes an etherification reaction. After the catalyst is added, the reaction time is controlled to 1.5 hours.
  • the controller 901 controls the steam flow through the third regulating valve 303 to control the temperature in the second reaction tank 301 at At 55°C, the excess methanol distilled off is cooled by the second heat exchanger 401 and flows into the methanol storage tank 404, and the remaining reaction product hexamethoxymethylmelamine is sent to the liquid adhesive storage tank 501 via the second circulation pump 306.
  • the fourth on-off valve 504 needs to be opened, and if solid powder binder is to be produced, the binder in the liquid binder storage tank 501 is transferred to the mixer 601 and carbon Black to mix.
  • the controller 901 controls the flow rate of the liquid adhesive and the amount of carbon black in the feeder 605 according to the proportion required by the process.
  • the well-matched adhesive and carbon black pass through the adhesive pipe and the carbon black silo respectively
  • the mixer 601 the raw materials are mixed by the shear of the twin screw, so that the mixing between the materials is more complete, and the mixed materials do not agglomerate.
  • the discharge opening 704 is opened to obtain the final solid powder binder.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Accessories For Mixers (AREA)

Abstract

一种粘合剂连续生产系统，包括：羟甲基反应系统，醚化反应系统、搅拌烘干系统和控制系统，采用自动化控制，可同时生产液体粘合剂和固体粘合剂。在第一反应罐（101）中加入三氯氰胺、多聚甲醛和甲醇进行羟甲基反应，随后转入第二反应罐（301）中进行醚化反应，之后反应产物六甲氧基甲基三聚氰胺输送到液体粘合剂储罐（501）中。然后再输经由液体粘合剂储罐（501）送到混合器（601）中与炭黑进行混合，再进入烘干机（701）烘干，制得固体粉末粘合剂。

Description

一种粘合剂连续生产系统 技术领域
本发明涉及粘合剂生产技术领域，特别涉及一种粘合剂连续生产系统。
背景技术
粘合剂有许多种类，按照状态可分为液体粘合剂和固体粘合剂。固体粘合剂的生产工序多了搅拌烘干系统，一些生产厂家是先利用液体粘合剂生产线生产出液体粘合剂，然后将液体粘合剂输送至搅拌烘干系统，制成固体粘合剂，不利于固体粘合剂质量的稳定性，也较为繁琐；还有一些生产企业设置不同的生产线，即液体粘合剂生产线和固体粘合剂生产线相互独立，这样各自生产互不干扰，但是设备利用率有限。
发明内容
本发明提供了一种粘合剂生产装置，采用自动化控制，可同时生产液体粘合剂和固体粘合剂，提高产品质量的稳定性和设备利用率。
具体技术方案是，一种粘合剂连续生产系统，包括：羟甲基反应系统，醚化反应系统、搅拌烘干系统和控制系统，
其中，羟甲基反应系统包括：第一反应罐、第一搅拌器、第一调节阀、第一温度计、第一开关阀和第一循环泵、第一换热器、第二调节阀和第二温度计；
醚化反应系统包括：第二反应罐、第二搅拌器、第三调节阀、第三温度计、第二开关阀、第二循环泵、过滤器、第二换热器、第四调 节阀、第四温度计、甲醇储罐、液体粘合剂储罐、第三开关阀、第三循环泵、第四开关阀；
搅拌烘干系统包括：粘合剂调节阀、粘合剂流量计、混合器、螺杆、喂料机、插板阀、烘干机、搅拌桨、搅拌轴、搅拌电机、下料口；
控制系统包括：触摸屏和控制器。
第一反应罐为羟甲基反应容器，第一调节阀用于调节蒸汽流量，以保证第一反应罐内温度稳定，第一调节阀通过管道与第一反应罐的夹套连接，控制夹套内蒸汽流量，第一温度计安装在第一反应罐上，测量第一反应罐内反应物温度；
进一步地，第一温度计和第一调节阀分别与控制器连接，控制器根据第一温度计的实际温度值和工艺设定值，对第一调节阀进行PID控制，以保证第一反应罐内温度与工艺设定值一致。
在羟甲基反应系统中，第二调节阀用于调节第一换热器中冷媒流量大小，第一循环泵通过管道与第一换热器连接，第二调节阀通过管道与第一换热器连接，控制冷却介质的流量，第二温度计安装在第一换热器与第二反应罐的管路上，测量换热器换热后物料温度值；
进一步地，第二温度计和第二调节阀分别与控制器连接，控制器根据第二温度计的实际温度值和工艺设定值，对第二调节阀进行PID控制，以保证第一换热器经过换热后的物料温度与工艺设定值一致。
第二反应罐为醚化反应容器，第三调节阀用于调节蒸汽流量，以保证第一反应罐内温度稳定，第三调节阀通过管道与第二反应罐的夹套连接，控制夹套内蒸汽流量，第三温度计安装在第二反应罐上，测量二反应罐内反应物温度；
进一步地，控制器根据第三温度计的实际温度和工艺设定值对第三调节阀进行PID控制，以保证第二反应罐内反应温度与工艺设定值相符。
在醚化反应系统中，第二换热器为降温换热器，用于将醚化反应 中蒸出的甲醇进行冷凝，冷凝后的甲醇储存甲醇储罐，生成的产品液体粘合剂通过第二循环泵输送到液体粘合剂储罐中储存。
第二循环泵通过管道与第二换热器连接，第四调节阀通过管道与第二换热器连接，控制冷却介质的流量，第四温度计安装在第二换热器与甲醇储罐的管路上，测量换热器换热后物料温度值；
进一步地，控制器根据第四温度计的数值和工艺设定值对第四调节阀进行PID控制，控制第二换热器的冷凝温度。
第二循环泵通过管道与过滤器连接，过滤器与液体粘合剂储罐连接，第三循环泵分别和第四开关阀和粘合剂调节阀连接；
在一个实施例中，如果只生产液体粘合剂只需打开第四开关阀即可，如果要生产固体粉末粘合剂，则要将液体粘合剂储罐中的粘合剂输送到混合器中与炭黑进行混合。
搅拌烘干系统中，粘合剂调节阀和粘合剂流量计安装在第三循环泵与混合器连接的管路上；
螺杆为双螺杆，安装在混合器内可进行相向转动；
插板阀安装在混合器与烘干机入口连接处；
搅拌桨安装在搅拌轴上，搅拌轴通过搅拌电机带动其转动；
粘合剂调节阀、粘合剂流量计、喂料机、插板阀分别与控制器连接，控制器根据粘合剂流量计对粘合剂调节阀进行PID控制，控制器对喂料机下料量进行控制。
在一个实施例中，控制器控制按照工艺要求的比例控制液体粘合剂流量和控制喂料机中炭黑的下料量，配比好的粘合剂和炭黑分别通过粘合剂管道和炭黑料仓进入混合装置中，原料通过双螺杆的剪切混合，使物料之间的混合更充分，而且混合后的物料不结块。经混合装置混合后的物料进入到烘干装置后，通过不断的搅拌烘干后，打开下料口得到最终的固体粉末粘合剂。
由于采用了以上技术方案，与现有技术相比，本发明采用液体- 固体一体的方式生产粘合剂，生产的液体粘合剂和固体粘合剂质量稳定，固体粘合剂不产生结块，而且在生产过程中封闭，不会污染车间，生产环境更好，设备简单，操作方便，设备利用率高。
附图说明
构成本申请的一部分的附图用来提供对本实用新型的进一步理解，本实用新型的示意性实施例及其说明用于解释本实用新型，并不构成对本实用新型的不当限定。在附图中：
图1是本发明一种粘合剂生产装置的示意图。
图2是本发明控制系统的示意图。
其中：101、第一反应罐，102、第一搅拌器，103、第一调节阀，104、第一温度计，105、第一开关阀，106、第一循环泵，201、第二调节阀，202、第一换热器，203、第二温度计，301、第二反应罐，302、第二搅拌器，303、第三调节阀，304、第三温度计，305、第二开关阀，306、第二循环泵，307、过滤器，401、第二换热器，402、第四调节阀，403、第四温度计，404、甲醇储罐，501、液体粘合剂储罐，502、第三开关阀，503、第三循环泵，504、第四开关阀，601、混合器，602、螺杆，603、粘合剂调节阀，604、粘合剂流量计，605、喂料机，701、烘干机，702、插板阀，703、搅拌桨，704、下料口，705、搅拌轴，706、搅拌电机，801、触摸屏，901控制器。
具体实施方式
为使本实用新型的目的、技术方案和优点更加清楚明白，下面结合实施方式和附图，对本实用新型作进一步详细说明。在此，本实用新型的示意性实施方式及其说明用于解释本实用新型，但并不作为对本实用新型的限定。下面是结合附图对本实用新型进行的描述：
如附图1，一种粘合剂连续生产系统，包括：羟甲基反应系统， 醚化反应系统、搅拌烘干系统和控制系统。
其中，羟甲基反应系统包括：第一反应罐101、第一搅拌器102、第一调节阀103、第一温度计104、第一开关阀105和第一循环泵106、第一换热器202、第二调节阀201和第二温度计203；
醚化反应系统包括：第二反应罐301、第二搅拌器302、第三调节阀303、第三温度计304、第二开关阀305、第二循环泵306、过滤器307、第二换热器401、第四调节阀402、第四温度计403、甲醇储罐404、液体粘合剂储罐501、第三开关阀502、第三循环泵503、第四开关阀504；
搅拌烘干系统包括：粘合剂调节阀603、粘合剂流量计604、混合器601、螺杆602、喂料机605、插板阀702、烘干机701、搅拌桨703、搅拌轴705、搅拌电机706、下料口704；
控制系统包括：触摸屏801和控制器901。
第一反应罐101为羟甲基反应容器，第一调节阀103用于调节蒸汽流量，以保证第一反应罐101内温度稳定，第一调节阀103通过管道与第一反应罐101的夹套连接，控制夹套内蒸汽流量，第一温度计104安装在第一反应罐101上，测量第一反应罐101内反应物温度；
第一温度计104和第一调节阀103分别与控制器901连接，控制器901根据第一温度计104的实际温度值和工艺设定值，对第一调节阀103进行PID控制，以保证第一反应罐101内温度与工艺设定值一致。
在羟甲基反应系统中，第一循环泵106通过管道与第一换热器202连接，第二调节阀201通过管道与第一换热器202连接，控制冷却介质的流量，第二温度计203安装在第一换热器202与第二反应罐301的管路上，测量换热后物料温度值；
第二温度计203和第二调节阀201分别与控制器901连接，控制器901根据第二温度计203的实际温度值和工艺设定值，对第二调节 阀201进行PID控制，以保证第一换热器202经过换热后的物料温度与工艺设定值一致。
第二反应罐301为醚化反应容器，第三调节阀303用于调节蒸汽流量，以保证第二反应罐301内温度稳定，第三调节阀303通过管道与第二反应罐301的夹套连接，控制夹套内蒸汽流量，第三温度计304安装在第二反应罐301上，测量第二反应罐301内反应物温度；控制器901根据第三温度计304的实际温度和工艺设定值对第三调节阀303进行PID控制，以保证第二反应罐301内反应温度与工艺设定值相符。
在醚化反应系统中，第二换热器401为降温换热器，用于将醚化反应中蒸出的甲醇进行冷凝，冷凝后的甲醇储存甲醇储罐404，生成的产品液体粘合剂通过第二循环泵306输送到液体粘合剂储罐501中储存。
第二循环泵306通过管道与第二换热器401连接，第四调节阀402通过管道与第二换热器401连接，控制冷却介质的流量，第四温度计403安装在第二换热器401与甲醇储罐404的管路上，测量换热后物料温度值；控制器901根据第四温度计403的数值和工艺设定值对第四调节阀402进行PID控制，控制第二换热器401的冷凝温度。
第二循环泵306通过管道与过滤器307连接，过滤器307与液体粘合剂储罐501连接，第三循环泵503分别和粘合剂调节阀603和第四开关阀504连接；
如果只生产液体粘合剂只需打开第四开关阀504即可，如果要生产固体粉末粘合剂，则要将液体粘合剂储罐501中的粘合剂输送到混合器601中与炭黑进行混合。
搅拌烘干系统中，粘合剂调节阀603和粘合剂流量计604安装在第三循环泵503与混合器601连接的管路上；
螺杆602为双螺杆，安装在混合器601内可进行相向转动；
插板阀702安装在混合器601与烘干机701入口连接处；
搅拌桨703安装在搅拌轴705上，搅拌轴705通过搅拌电机706带动其转动；
粘合剂调节阀603、粘合剂流量计604、、喂料机605、插板阀702分别与控制器901连接，控制器901根据粘合剂流量计604对粘合剂调节阀603进行PID控制，控制器901对喂料机605下料量进行控制。
实施例：
将一定比例的三氯氰胺、多聚甲醛、甲醇加入第一反应罐101中进行羟甲基反应，控制器901控制搅拌，并通过第一调节阀103控制蒸汽流量，调节罐内温度达到75℃，加入催化剂反应一个小时，第一循环泵106将罐内的反应物料输送到第一换热器202中，控制器901通过第二调节阀201控制冷却液流量，将物料温度降温至50℃。
转入第二反应罐301中的物料进行醚化反应，加入催化剂后，控制反应时间为1.5小时，控制器901通过第三调节阀303控制蒸汽流量，将第二反应罐301中的温度控制在55℃，蒸出多余甲醇经第二换热器401冷却后流到甲醇储罐404中，剩余反应产物六甲氧基甲基三聚氰胺经第二循环泵306输送到液体粘合剂储罐501中。
如果只生产液体粘合剂只需打开第四开关阀504即可，如果要生产固体粉末粘合剂，则要将液体粘合剂储罐501中的粘合剂输送到混合器601中与炭黑进行混合。
控制器901控制按照工艺要求的比例控制液体粘合剂流量和控制喂料机605中炭黑的下料量，配比好的粘合剂和炭黑分别通过粘合剂管道和炭黑料仓进入混合器601中，原料通过双螺杆的剪切混合，使物料之间的混合更充分，而且混合后的物料不结块。经混合器601混合后的物料进入到烘干机701后，通过不断的搅拌烘干后，打开下料口704得到最终的固体粉末粘合剂。

Claims (2)

  1. 一种粘合剂连续生产系统，其特征在于，
    包括：羟甲基反应系统，醚化反应系统、搅拌烘干系统和控制系统，
    其中，羟甲基反应系统包括：第一反应罐(101)、第一搅拌器(102)、第一调节阀(103)、第一温度计(104)、第一开关阀(105)和第一循环泵(106)、第一换热器(202)、第二调节阀(201)和第二温度计(203)；
    醚化反应系统包括：第二反应罐(301)、第二搅拌器(302)、第三调节阀(303)、第三温度计(304)、第二开关阀(305)、第二循环泵(306)、过滤器(307)、第二换热器(401)、第四调节阀(402)、第四温度计(403)、甲醇储罐(404)、液体粘合剂储罐(501)、第三开关阀(502)、第三循环泵(503)、第四开关阀(504)；
    搅拌烘干系统包括：粘合剂调节阀(603)、粘合剂流量计(604)、混合器(601)、螺杆(602)、喂料机(605)、插板阀(702)、烘干机(701)、搅拌桨(703)、搅拌轴(705)、搅拌电机(706)、下料口(704)；
    控制系统包括：HMI触摸屏(801)和控制器(901)；
    羟甲基反应系统中，
    第一调节阀(103)通过管道与第一反应罐(101)的夹套连接，控制夹套内蒸汽流量，第一温度计(104)安装在第一反应罐(101)上，测量第一反应罐(101)内反应物温度；
    第一循环泵(106)通过管道与第一换热器(202)连接，第二调节阀(201)通过管道与第一换热器(202)连接，控制冷却介质的流量，第二温度计(203)安装在第一换热器(202)与第二反应罐(201)的管路上，测量换热后物料温度值；
    第一调节阀(103)、第一温度计(104)、第一开关阀(105)、 第一循环泵(106)、第一换热器(202)、第二调节阀(201)和第二温度计(203)分别与控制器(901)连接，控制器(901)根据第一温度计(104)的数值对第一调节阀(103)进行PID控制，控制器(901)根据第二温度计(203)的数值对第二调节阀(201)进行PID控制；
    醚化反应系统中，
    第三调节阀(303)通过管道与第二反应罐(301)的夹套连接，控制夹套内蒸汽流量，第三温度计(304)安装在第二反应罐(301)上，测量二反应罐(301)内反应物温度；
    第二循环泵(306)通过管道与第二换热器(401)连接，第四调节阀(402)通过管道与第二换热器(401)连接，控制冷却介质的流量，第四温度计(403)安装在第二换热器(401)与甲醇储罐(404)的管路上，测量换热后物料温度值；
    第二循环泵(306)通过管道与过滤器(307)连接，过滤器(307)与液体粘合剂储罐(501)连接，第三循环泵(503)分别和第四开关阀(504)和粘合剂调节阀(603)连接；
    第二搅拌器(302)、第三调节阀(303)、第三温度计(304)、第二开关阀(305)、第二循环泵(306)、第四调节阀(402)、第四温度计(403)、第三开关阀(502)、第三循环泵(503)、第四开关阀(504)分别与控制器(901)连接，控制器(901)根据第三温度计(304)的数值对第三调节阀(303)进行PID控制，控制器(901)根据第四温度计(403)的数值对第四调节阀(402)进行PID控制；
    搅拌烘干系统中，
    粘合剂调节阀(603)和粘合剂流量计(604)安装在第三循环泵(503)与混合器(601)连接的管路上；
    螺杆(602)安装在混合器(601)内；
    插板阀(702)安装在混合器(601)与烘干机(701)入口连接处；
    搅拌桨(703)安装在搅拌轴(705)上，搅拌轴(705)通过搅拌电机(706)带动其转动；
    粘合剂调节阀(603)、粘合剂流量计(604)、喂料机(605)、插板阀(702)分别与控制器(901)连接，控制器(901)根据粘合剂流量计(604)对粘合剂调节阀(603)进行PID控制，控制器(901)对喂料机(605)下料量进行控制。
  2. 根据权利要求1所述的一种粘合剂连续生产系统，其特征在于,螺杆(602)为双螺杆，安装在混合器(601)内可进行相向转动。
PCT/CN2018/124379 2018-12-27 2018-12-27 一种粘合剂连续生产系统 WO2020133074A1 (zh)

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