CN118286969A - A fully automatic adding device and method to prevent liquid catalyst from crystallizing at low temperature - Google Patents
A fully automatic adding device and method to prevent liquid catalyst from crystallizing at low temperature Download PDFInfo
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- CN118286969A CN118286969A CN202410295064.2A CN202410295064A CN118286969A CN 118286969 A CN118286969 A CN 118286969A CN 202410295064 A CN202410295064 A CN 202410295064A CN 118286969 A CN118286969 A CN 118286969A
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/02—Feed or outlet devices; Feed or outlet control devices for feeding measured, i.e. prescribed quantities of reagents
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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
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- B01J4/008—Feed or outlet control devices
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Abstract
本发明公开了一种防止液态催化剂低温易结晶的全自动添加装置及方法，包括在装置主体内从上往下的三层结构设计，其底层内布置有催化剂罐和热水罐，中层设有进液泵、进液流量计、电磁阀、计量缓存杯、三通电磁阀、出液流量计和出液泵；顶层设有人机接口界面和控制单元，通过人机接口界面和控制单元用于调控进液泵、进液流量计、电磁阀、计量缓存杯、三通电磁阀、出液流量计和出液泵的工作状态。本发明解决了企业在生产过程中对小剂量高精度的低温易结晶的液态催化剂的远程自动添加困难的问题，有助于提高生产效率，提高产线自动化程度，降低操作人员在现场手动添加催化剂带来的安全风险，整个装置计量准确，运行稳定可靠，安装方便，操作简单。
The present invention discloses a fully automatic adding device and method for preventing liquid catalyst from crystallizing easily at low temperature, including a three-layer structure design from top to bottom in the main body of the device, wherein the bottom layer is provided with a catalyst tank and a hot water tank, the middle layer is provided with a liquid inlet pump, a liquid inlet flowmeter, a solenoid valve, a metering buffer cup, a three-way solenoid valve, a liquid outlet flowmeter and a liquid outlet pump; the top layer is provided with a human-machine interface and a control unit, which are used to control the working states of the liquid inlet pump, the liquid inlet flowmeter, the solenoid valve, the metering buffer cup, the three-way solenoid valve, the liquid outlet flowmeter and the liquid outlet pump. The present invention solves the problem of the difficulty of remote automatic addition of small doses of high-precision liquid catalysts that are easy to crystallize at low temperature in the production process of enterprises, helps to improve production efficiency, improve the degree of automation of production lines, and reduce the safety risks brought by operators manually adding catalysts on site. The entire device has accurate measurement, stable and reliable operation, convenient installation, and simple operation.
Description
Technical Field
The invention relates to the technical field of liquid small-dose material addition, in particular to a full-automatic adding device and method for preventing liquid catalyst from crystallizing easily at low temperature.
Background
In the production process of fine chemical technology, various catalysts are often added to synthesize the final product. Years of field experience has shown that the catalyst used by enterprises is mainly in a liquid, solid or powder state. The liquid catalyst occupies a larger proportion, but the dosage of each catalyst is small, the dosage of each catalyst can be as small as 100ML in some enterprises, the precision is required to be high, and some catalysts are easy to crystallize. The objective factors such as the above bring a certain difficulty to the realization of full-automatic catalyst addition in the fine chemical process and a certain technical bottleneck to the realization of full-process automation in the fine chemical process.
At present, most fine chemical enterprises still stay in the mode of manually opening a manhole of a reaction kettle on site and manually throwing the catalyst into the reaction kettle to add the catalyst in the production process. In the production process, high temperature and certain pressure are usually present in the reaction kettle, and most of the catalyst can undergo severe reaction at the moment of contact with materials in the reaction kettle, so that high temperature or toxic and inflammable gas is released, and certain potential safety hazard is brought to operators.
Disclosure of Invention
The invention aims to provide a full-automatic adding device and method for preventing liquid catalyst from crystallizing easily at low temperature, so as to solve the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
A full-automatic adding device for preventing liquid catalyst from crystallizing easily at low temperature comprises a device main body, wherein the device main body is internally divided into three layers from top to bottom, a catalyst tank and a hot water tank are arranged in a bottom layer, the catalyst tank is tightly attached to the hot water tank, and liquid accumulation tanks are arranged at the bottoms of the catalyst tank and the hot water tank; the middle layer of the device main body is provided with a liquid inlet pump, a liquid inlet flowmeter, an electromagnetic valve, a metering buffer cup, a three-way electromagnetic valve, a liquid outlet flowmeter and a liquid outlet pump; one end of the liquid inlet pump is connected with the catalyst tank through a pipeline, and the other end of the liquid inlet pump is connected with the metering cache cup through a pipeline; the liquid inlet flowmeter and the electromagnetic valve are arranged on a connecting pipeline of the liquid inlet pump and the metering buffer cup; the metering buffer cup is also connected with a liquid outlet pump through a pipeline, and a three-way electromagnetic valve and a liquid outlet flowmeter are arranged on the pipeline; the three-way electromagnetic valve is communicated with the hot water tank through a pipeline; the top layer of the device main body is provided with a man-machine interface and a control unit, and the device main body is used for regulating and controlling the working states of the liquid inlet pump, the liquid inlet flowmeter, the electromagnetic valve, the metering buffer cup, the three-way electromagnetic valve, the liquid outlet flowmeter and the liquid outlet pump through the man-machine interface and the control unit.
Further, the bottom of the device main body is provided with a drain outlet which is communicated with the liquid accumulation groove, one side of the bottom layer of the device main body is provided with a purified water inlet which is communicated with the hot water tank, one side of the middle layer of the device main body is provided with a material outlet, and the material outlet is communicated with the outlet end of the liquid outlet pump.
Further, a micro-distance camera is further arranged at the middle layer of the device main body, and the micro-distance camera is opposite to the metering cache cup and used for remotely transmitting image information in the metering cache cup to the human-computer interface.
Further, the man-machine interface is in communication connection with the control unit, a material metering module, a temperature control module, a liquid level control module and an image processing module are arranged in the control unit, and electric control connection is respectively established between the modules with a liquid inlet pump, a liquid inlet flowmeter, an electromagnetic valve, a micro-camera, a three-way electromagnetic valve, a liquid outlet flowmeter and a liquid outlet pump.
Further, the hot water tank arranged at the bottom layer of the device main body is used for preventing the catalyst from crystallizing at low temperature in the components and the pipelines through the components arranged at the middle layer of the radiation temperature heating device main body.
Further, waterproof interlayer processing is adopted between the electric control element arranged on the top layer of the device main body and each component arranged on the middle layer.
Further, the three-way electromagnetic valve is used for switching the catalyst pipeline and the hot water pipeline in each catalyst adding process.
The invention provides another technical scheme that: an adding method of a full-automatic adding device for preventing a liquid catalyst from crystallizing easily at low temperature comprises the following steps:
Step one: a hot water tank is tightly attached to one side of a catalyst tank at the bottom layer of the device main body and is used for heating catalyst materials;
Step two: the control unit arranged on the top layer of the device body controls the liquid inlet pump of the middle layer to work, and extracts the catalyst materials into the metering cache cup;
Step three: collecting the material images extracted from the metering cache cup by a macro camera, and uploading the material images to a human-computer interface for display;
step four: the operator observes the material volume that man-machine interface shows, controls the control unit according to the extraction volume, by the accurate feed of control unit comprehensive control feed liquid flow meter, solenoid valve, three way solenoid valve, play liquid flowmeter, play liquid pump can.
Compared with the prior art, the invention has the beneficial effects that:
The full-automatic adding device and method for preventing the liquid catalyst from being easily crystallized at low temperature solves the problem that some enterprises are difficult to automatically add the liquid catalyst which is easy to crystallize at low temperature with small dosage and high precision in the production process, is beneficial to improving the production efficiency, improving the automation degree of a production line, reducing the safety risk caused by manually adding the catalyst on site by operators, and has the advantages of accurate metering, stable and reliable operation, convenient installation and simple operation.
Drawings
FIG. 1 is a diagram of the overall device layout architecture of the present invention;
fig. 2 is a schematic diagram of the control of the device of the present invention.
In the figure: 102. a catalyst tank; 103. a hot water tank; 101. a liquid collecting tank; 201. a liquid inlet pump; 202. a feed liquid flow meter; 203. an electromagnetic valve; 204. a metering cache cup; 205. a three-way electromagnetic valve; 208. a liquid outlet flowmeter; 206. a liquid outlet pump; 207. a macro camera; 301. a human-machine interface; 302. a control unit; 4. a sewage outlet; 5. a purified water inlet; 6. and a material outlet.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-2, the embodiment of the invention provides a full-automatic adding device for preventing a liquid catalyst from crystallizing easily at low temperature, which comprises a device main body, wherein the device main body is divided into three layers from top to bottom, a catalyst tank 102 and a hot water tank 103 are arranged in a bottom layer, the catalyst tank 102 is tightly attached to the hot water tank 103, so as to be helpful for heating up catalyst materials and preventing the catalyst from crystallizing easily at low temperature, and a liquid accumulation tank 101 is arranged at the bottoms of the catalyst tank 102 and the hot water tank 103; a liquid inlet pump 201, a liquid inlet flowmeter 202, an electromagnetic valve 203, a metering buffer cup 204, a three-way electromagnetic valve 205, a liquid outlet flowmeter 208 and a liquid outlet pump 206 are arranged at the middle layer of the device body; the temperature radiation of the bottom hot water tank 103 is provided, and under the condition that the external environment temperature of the device is not too low, the active heating system is not required to be opened in the device, so that the catalyst is not crystallized in the components, the system can work stably, and the device is facilitated to reduce energy consumption; one end of the liquid inlet pump 201 is connected with the catalyst tank 102 through a pipeline, and the other end is connected with the metering cache cup 204 through a pipeline; the liquid inlet flowmeter 202 and the electromagnetic valve 203 are arranged on a connecting pipeline of the liquid inlet pump 201 and the metering buffer cup 204; the metering buffer cup 204 is also connected with a liquid outlet pump 206 through a pipeline, and a three-way electromagnetic valve 205 and a liquid outlet flowmeter 208 are arranged on the pipeline; the three-way electromagnetic valve 205 is communicated with the hot water tank 103 through a pipeline; the top layer of the device main body is provided with a man-machine interface 301 and a control unit 302, and the man-machine interface 301 and the control unit 302 are used for regulating and controlling the working states of the liquid inlet pump 201, the liquid inlet flowmeter 202, the electromagnetic valve 203, the metering cache cup 204, the three-way electromagnetic valve 205, the liquid outlet flowmeter 208 and the liquid outlet pump 206, wherein the liquid inlet pump 201 and the liquid outlet pump 206 are magnetic pumps.
In the above embodiment, the components of the present invention are highly integrated in a box, the installation is simple, the AC220V power supply is provided, the bottom of the device body is provided with the drain 4, the drain 4 is communicated with the liquid accumulation tank 101, one side of the bottom layer of the device body is provided with the purified water inlet 5, the purified water inlet 5 is communicated with the hot water tank 103, one side of the middle layer of the device body is provided with the material outlet 6, and the material outlet 6 is communicated with the outlet end of the liquid outlet pump 206.
The middle layer of the device main body is also provided with the micro-distance camera 207, the micro-distance camera 207 is opposite to the metering cache cup 204 and is used for remotely transmitting image information in the metering cache cup 204 to the human-computer interface 301, so that an operator can visualize the actual metering value of the catalyst in the whole process in the adding process, the number in mind is realized, and the use is more safe.
In the above embodiment, the man-machine interface 301 is in communication connection with the control unit 302, the control unit 302 is internally provided with a material metering module, a temperature control module, a liquid level control module and an image processing module, all modules are respectively in electric control connection with the liquid inlet pump 201, the liquid inlet flowmeter 202, the electromagnetic valve 203, the macro camera 207, the three-way electromagnetic valve 205, the liquid outlet flowmeter 208 and the liquid outlet pump 206, the whole device can be compatible with other automatic control systems, an Ethernet TCP communication interface, a modbus485 communication interface and an OPC UA communication interface can be reserved on the device main body, the device is conveniently integrated into a DCS control system, the whole process automation of the production process is realized, and the material metering is more accurate through the material metering module; the temperature control module ensures that the temperature of the hot water tank 103 is constant with the internal environment temperature of the device, a user can freely adjust the internal temperature of the device and the hot water control temperature by combining the characteristics of the catalyst materials, and the liquid level control module ensures the liquid level automatic water supplementing and alarm prompt of the hot water tank 103 and the liquid level alarm prompt of the catalyst tank 102; the image processing module can accurately observe the actual liquid level in the metering cache cup 204, so that an operator can conveniently and intuitively remotely and secondarily verify the accuracy of each additive amount in a central control room, the system can be stopped in time when a problem is found, and the accuracy of each catalyst addition is ensured.
In the above embodiment, the hot water tank 103 arranged at the bottom of the device body is helpful to ensure the internal temperature of the whole device and reduce the energy consumption increased by the operation of the active heating system in the device by radiating the temperature to raise the components arranged at the middle of the device body.
In the embodiment of the invention, the electric control element arranged on the top layer of the main body and each element arranged on the middle layer are treated by adopting a waterproof interlayer process, so that water vapor at the lower part of the device is prevented from channeling to the top layer to damage the human-computer interface 301 and the control unit 302.
The three-way electromagnetic valve 205 in the embodiment of the invention is used for switching a catalyst pipeline and a hot water pipeline in each catalyst adding process, specifically, after the catalyst in the metering buffer cup 204 is completely pumped by the liquid outlet pump 206, the liquid outlet pump 206 pumps quantitative hot water into the reaction kettle, and the liquid outlet flowmeter 208 meters the hot water, so that the catalyst is not remained in the pipeline from the three-way electromagnetic valve 205, the liquid outlet flowmeter 208 and the liquid outlet pump 206 to the site reaction kettle after the catalyst adding process is completed each time, the crystallization of the residual catalyst in the pipeline and the intermediate pipeline element is prevented, and the reliable completion of each catalyst adding process is ensured.
In order to further better explain the embodiment of the invention, the invention also provides an adding method of a full-automatic adding device for preventing the liquid catalyst from crystallizing easily at low temperature, which is mainly suitable for the adding of the liquid catalyst or the production process of dissolving the catalyst into the liquid state for adding, and simultaneously, the invention can also be suitable for the production process with small dosage of the catalyst added each time and high metering precision, and comprises the following steps:
Step one: a hot water tank 103 is closely arranged on one side of a catalyst tank 102 at the bottom layer of the device body and is used for heating catalyst materials;
step two: the control unit 302 arranged on the top layer of the device body controls the liquid inlet pump 201 on the middle layer to work, and extracts the catalyst materials into the metering cache cup 204;
Step three: the macro camera 207 collects the material images extracted from the metering cache cup 204 and uploads the material images to the human-computer interface 301 for display;
Step four: the operator observes the material volume that human-computer interface 301 shows, controls control unit 302 according to the extraction volume, by control unit 302 comprehensive control advance liquid flowmeter 202, solenoid valve 203, three way solenoid valve 205, go out liquid flowmeter 208, go out liquid pump 206 accurate feed can, whole process operator can full-automatic completion catalyst addition of a key, in the use according to the technological condition the operator only need regularly add sufficient catalyst in the raw materials barrel can, design raw materials memory space can be adjusted according to the user's requirement.
To sum up: the full-automatic adding device and method for preventing the liquid catalyst from crystallizing easily at low temperature provided by the invention have reasonable structural layout, and the hot water tank 103 is closely arranged on one side of the catalyst tank 102, so that the radiation temperature of the hot water tank 103 is favorable for heating the catalyst, the catalyst is prevented from crystallizing at low temperature, and the energy consumption required by the operation of an active heating device in a cabinet is reduced; meanwhile, the liquid inlet pump 201, the liquid inlet flow meter 202, the electromagnetic valve 203, the metering cache cup 204, the three-way electromagnetic valve 205, the liquid outlet flow meter 208 and the liquid outlet pump 206 are arranged on the second layer, so that the radiation temperature of the hot water tank 103 is increased, two layers of components are helped, the catalyst is prevented from crystallizing at low temperature in the components and pipelines, the energy consumption required by the working of an active temperature increasing device in a cabinet is reduced, a macro camera 207 is further arranged in the device, the image information of the metering cache cup 204 is remotely transmitted to a central control room through the macro camera 207, operators can intuitively see the adding amount of each catalyst, the aim of secondary verification is fulfilled, the number is realized, and the use is more ensured.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should be covered by the protection scope of the present invention by making equivalents and modifications to the technical solution and the inventive concept thereof.
Claims (8)
1. The full-automatic adding device for preventing the liquid catalyst from crystallizing easily at low temperature is characterized by comprising a device main body, wherein the device main body is divided into three layers from top to bottom, a catalyst tank (102) and a hot water tank (103) are arranged in a bottom layer, the catalyst tank (102) is tightly attached to the hot water tank (103), and a liquid accumulation tank (101) is arranged at the bottoms of the catalyst tank (102) and the hot water tank (103); the middle layer of the device main body is provided with a liquid inlet pump (201), a liquid inlet flowmeter (202), an electromagnetic valve (203), a metering buffer cup (204), a three-way electromagnetic valve (205), a liquid outlet flowmeter (208) and a liquid outlet pump (206); one end of the liquid inlet pump (201) is connected with the catalyst tank (102) through a pipeline, and the other end of the liquid inlet pump is connected with the metering cache cup (204) through a pipeline; the liquid inlet flowmeter (202) and the electromagnetic valve (203) are arranged on a connecting pipeline of the liquid inlet pump (201) and the metering buffer cup (204); the metering cache cup (204) is also connected with a liquid outlet pump (206) through a pipeline, and a three-way electromagnetic valve (205) and a liquid outlet flowmeter (208) are arranged on the pipeline; the three-way electromagnetic valve (205) is communicated with the hot water tank (103) through a pipeline; the top layer of the device main body is provided with a human-computer interface (301) and a control unit (302), and the working states of the liquid inlet pump (201), the liquid inlet flowmeter (202), the electromagnetic valve (203), the metering cache cup (204), the three-way electromagnetic valve (205), the liquid outlet flowmeter (208) and the liquid outlet pump (206) are regulated and controlled through the human-computer interface (301) and the control unit (302).
2. The fully automatic adding device for preventing low-temperature easy crystallization of liquid catalyst according to claim 1, wherein the adding device comprises: the bottom of device main part is equipped with drain (4), and drain (4) and hydrops groove (101) intercommunication are equipped with pure water import (5) in one side of device main part bottom, and pure water import (5) and hot water jar (103) intercommunication are equipped with material export (6) in one side of device main part middle level, and material export (6) and the exit end intercommunication of drain pump (206).
3. The fully automatic adding device for preventing low-temperature easy crystallization of liquid catalyst according to claim 1, wherein the adding device comprises: the middle layer of the device main body is also provided with a micro-distance camera (207), and the micro-distance camera (207) is opposite to the metering cache cup (204) and is used for remotely transmitting image information in the metering cache cup (204) to the human-computer interface (301).
4. A fully automatic adding device for preventing low temperature easy crystallization of liquid catalyst according to claim 3, wherein: the human-computer interface (301) is in communication connection with the control unit (302), a material metering module, a temperature control module, a liquid level control module and an image processing module are arranged in the control unit (302), and electric control connection is respectively established between the modules with the liquid inlet pump (201), the liquid inlet flow meter (202), the electromagnetic valve (203), the micro-camera (207), the three-way electromagnetic valve (205), the liquid outlet flow meter (208) and the liquid outlet pump (206).
5. The fully automatic adding device for preventing low-temperature easy crystallization of liquid catalyst according to claim 1, wherein the adding device comprises: the hot water tank (103) arranged at the bottom layer of the device main body is used for preventing the catalyst from crystallizing at low temperature in the components and the pipelines through the components arranged at the middle layer of the radiation temperature heating device main body.
6. The fully automatic adding device for preventing low-temperature easy crystallization of liquid catalyst according to claim 1, wherein the adding device comprises: the electric control element arranged on the top layer of the device main body and each element arranged on the middle layer are treated by adopting a waterproof interlayer process.
7. The fully automatic adding device for preventing low-temperature easy crystallization of liquid catalyst according to claim 1, wherein the adding device comprises: the three-way electromagnetic valve (205) is used for switching the catalyst pipeline and the hot water pipeline in each catalyst adding process.
8. The method for adding a fully automatic adding device for preventing low-temperature crystallization of a liquid catalyst according to claim 4, comprising the steps of:
step one: a hot water tank (103) is tightly attached to one side of a catalyst tank (102) at the bottom layer of the device main body and is used for heating catalyst materials;
Step two: a control unit (302) arranged on the top layer of the device body controls a liquid inlet pump (201) at the middle layer to work, and extracts catalyst materials into a metering cache cup (204);
Step three: collecting the material images extracted from the metering cache cup (204) by a macro camera (207), and uploading the material images to a human-computer interface (301) for display;
Step four: the operator observes the material volume that man-machine interface (301) shows, controls the control unit (302) according to the extraction volume, by control unit (302) comprehensive control advance liquid flowmeter (202), solenoid valve (203), three way solenoid valve (205), play liquid flowmeter (208), play liquid pump (206) accurate feed can.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410295064.2A CN118286969B (en) | 2024-03-15 | 2024-03-15 | A fully automatic adding device and method for preventing liquid catalyst from crystallizing at low temperature |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410295064.2A CN118286969B (en) | 2024-03-15 | 2024-03-15 | A fully automatic adding device and method for preventing liquid catalyst from crystallizing at low temperature |
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| CN118286969A true CN118286969A (en) | 2024-07-05 |
| CN118286969B CN118286969B (en) | 2025-10-10 |
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| CN210533457U (en) * | 2019-09-12 | 2020-05-15 | 金川集团股份有限公司 | Liquid feeding meter for standard metering kettle |
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| CN218307829U (en) * | 2022-08-14 | 2023-01-17 | 甘肃九桓新材料有限公司白银分公司 | Conveyor is used in water-reducing agent production |
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2024
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20050128869A1 (en) * | 2002-07-24 | 2005-06-16 | Saurer Gmbh & Co. Kg | Apparatus and method for injecting a liquid dye into a polymer melt |
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| CN210473923U (en) * | 2019-07-31 | 2020-05-08 | 淄博新塑化工有限公司 | Olefin polymerization catalyst and auxiliary agent injection system |
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| CN118286969B (en) | 2025-10-10 |
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