CN104474988A - Neutralization reaction device and automatic control method - Google Patents
Neutralization reaction device and automatic control method Download PDFInfo
- Publication number
- CN104474988A CN104474988A CN201410775190.4A CN201410775190A CN104474988A CN 104474988 A CN104474988 A CN 104474988A CN 201410775190 A CN201410775190 A CN 201410775190A CN 104474988 A CN104474988 A CN 104474988A
- Authority
- CN
- China
- Prior art keywords
- caustic soda
- liquid caustic
- control valve
- still
- neutralization reaction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
-
- 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
- B01J10/00—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor
-
- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/0013—Controlling the temperature of the process
-
- 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
- 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
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00054—Controlling or regulating the heat exchange system
- B01J2219/00056—Controlling or regulating the heat exchange system involving measured parameters
- B01J2219/00069—Flow rate measurement
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00761—Details of the reactor
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Control Of Non-Electrical Variables (AREA)
Abstract
The invention discloses a neutralization reaction device. The technical scheme is that the neutralization reaction device comprises a caustic soda liquid metering tank, a caustic soda liquid barrel, an acid liquid barrel, a neutralization kettle, a PLC, a first adjusting valve and an accurate control unit, wherein two material inlets are formed in the top end of the neutralization kettle, wherein one material inlet is sequentially connected with the caustic soda liquid metering tank and the caustic soda liquid barrel, and the other material inlet is connected with the acid liquid barrel; the accurate control unit is used for accurately controlling materials; the first adjusting valve is arranged on any material inlet; the neutralization kettle is internally provided with a temperature sensor, and a temperature signal in the neutralization kettle is transmitted to the PLC so as to control the switch flow rate of the first adjusting valve by the PLC. The device and the method both can be used for accurately controlling acid liquid and caustic soda liquid in real time effectively in the neutralization reaction process, so that the neutralization effect is ensured.
Description
Technical field
The present invention relates to neutralization reaction field, relate to a kind of device and automatic control method of neutralization reaction in particular.
Background technology
Neutralization reaction (neutralization reaction) is that acid intercourses composition with alkali, generates the reaction of salt and water.
Application number be 201310735031.7 Chinese invention disclose in a kind of ammonium nitrate and control system, comprise averager, described averager is connected to nitric acid feed pipe and ammonia feed pipe, and the outlet side, top of described averager is connected with the input of gas-liquid separator, its output is connected with averager again; The outlet end of described gas-liquid separator is connected with described averager; The outlet side, top of described averager is connected with condenser, and the output of described condenser is provided with the first sample valve; Described averager and the connecting pipe again between averager are provided with the second sample valve; The port of export of described first sample valve and the second sample valve is all positioned at the top of funnel.The steam of overflowing to averager is introduced in condenser and is carried out condensation and become condensate liquid and carry out its acid-base value of sample analysis, regulate the flow valve of acid or ammonia according to analysis result, and then control the acid-base value of ammonium nitrate solution, reduce acid, ammonia consumption, and reclaim solution, energy-conserving and environment-protective.
Application number be 201320230351.2 Chinese utility model disclose a kind of acid-base neutralization process units of sulfuration aldehyde-ketone condensate, comprise reactor, neutralizing tank, sour tank and manual modulation valve, reactor and sour tank are located on the shelf higher than neutralizing tank height, neutralizing tank is located on level ground, a discharge nozzle is provided with bottom reactor, discharge nozzle is connected with neutralizing tank upper inlet, be provided with one at sour pot bottom and go out acid tube, go out acid tube and discharge nozzle and connect, at discharge nozzle with go out on acid tube to be provided with a hand flow regulating valve separately.
But above-mentioned two kinds of patents are not due to the accurate control of acid solution or alkali lye, in the production of reality, all can have following problem: first, make carrying out in the process of reacting, there will be the consumption of acid solution more than alkali lye, or the consumption of alkali lye is more than the phenomenon of acid solution, adds acid solution or the too much consumption of alkali lye, be unfavorable for environmental protection; The second, after neutralization, unnecessary acid solution or alkali lye can have influence on the chemical property (such as pH value) of product, thus can not reach people and estimate this performance reached of product, thus have impact on the production of subsequent technique; 3rd, in whole neutralization reaction process, real-time accurate control can not be carried out to neutralization reaction, thus well can not ensure the effect of acid-base neutralization.
Therefore, arrange one in neutralization reaction process, effectively can carry out to material the device that controls in real time accurately, the necessity very of seeming and importance.
Summary of the invention
For the deficiency that prior art exists, the object of the present invention is to provide a kind of device and automatic control method of neutralization reaction, by this kind of apparatus and method effectively in neutralization reaction process, to the accurate control that acid solution and alkali lye can be real-time, ensure that the effect of neutralization reaction.
For achieving the above object, the invention provides following technical scheme: a kind of neutralization reaction device, comprise liquid caustic soda measuring tank, liquid caustic soda bucket, acid solution bucket, in and still and PLC, in the described and top of still offers two charging apertures, one of them charging aperture connects liquid caustic soda measuring tank and liquid caustic soda bucket successively, another charging aperture connects acid solution bucket, described neutralization reaction device also includes the first control valve and the accurate control unit for accurately controlling material, first control valve is arranged on any one charging aperture, temperature sensor is built-in with still in described, and by and still in temperature signal be delivered to PLC, to be controlled the switch uninterrupted of the first control valve by PLC.
The present invention is set to further: described accurate control unit is accurately controlled material by Weighing module control system.
The present invention is set to further: during described first control valve is arranged on and between still and acid solution bucket, from liquid caustic soda measuring tank to and still is connected with successively and is equipped with control valve and measuring pump, the second control valve for regulating liquid caustic soda uninterrupted is also provided with between described liquid caustic soda measuring tank and liquid caustic soda bucket, described accurate control unit include be arranged on liquid caustic soda measuring tank and in and still on acquisition module of weighing, described weigh acquisition module by liquid caustic soda measuring tank and in and the weight signal of still be delivered to PLC, to control the switch uninterrupted of the second control valve and measuring pump.
The present invention is set to further: described liquid caustic soda measuring tank and in and still on all Pressure gauge is installed.
The present invention is set to further: described first control valve is operated pneumatic valve or electrically operated valve, and described second control valve is operated pneumatic valve or electrically operated valve, and described control valve is pneumatic ball valve.
The present invention is set to further: described accurate control unit is accurately controlled material by measuring pump control system.
The present invention is set to further: during described first control valve is arranged on and between still and liquid caustic soda measuring tank, between liquid caustic soda measuring tank and liquid caustic soda bucket and acid solution bucket and in and be all connected by accurate control unit between still, described accurate control unit includes the control valve, measuring pump and the mass flowmenter that are connected successively and arrange, and described control valve is arranged near liquid caustic soda bucket or acid solution bucket.
The present invention is set to further: described liquid caustic soda measuring tank and in and be provided with high some liquid level and low spot liquid level in still, and realize liquid level display and data output by its inner pressure sensor arranged.
The present invention is set to further: a kind of automatic control method of neutralization reaction device, includes following steps.
A: by be arranged on liquid caustic soda measuring tank and in and pressure sensor in still, realize the output of display to its liquid level and data, and the data exported are delivered to PLC.
B: in the neutralization reaction starting stage, the Data Control PLC that pressure sensor exports is to complete negative-pressure feeding, described negative-pressure feeding is for opening, closing corresponding vacuum, and the switching of the control valve of blowdown piping and the first control valve, the second control valve, to realize automatically having controlled to feed intake.
C: in the neutralization reaction incipient stage, material in liquid caustic soda bucket passes through the second control valve to feed in liquid caustic soda measuring tank, material in acid solution bucket by the first control valve in and still feed, when liquid caustic soda measuring tank or in and the weight of still reaches the intermediate weight of acquisition module setting of weighing time, two control valves start the aperture of the automatic regulating valve door with the increase of weight, until weight closes two control valves, completely to complete the accurate measurement to material after reaching the value of final setting.
The present invention is set to further: a kind of automatic control method of neutralization reaction device, includes following steps.
A: by be arranged on liquid caustic soda measuring tank and in and pressure sensor in still, realize the output of display to its liquid level and data, and the data exported are delivered to PLC.
B: in the neutralization reaction starting stage, the Data Control PLC that pressure sensor exports is to complete material, described material is open, close the switching that product pump, control valve and the first control valve open, close, to realize automatically having controlled throwing.
C: in the neutralization reaction incipient stage, material in liquid caustic soda bucket and acid solution bucket by measuring pump, mass flowmenter flow to respectively liquid caustic soda measuring tank and in and still, mass flowmenter accumulation calculates the weight that material flows through, when material will reach the weight of mass flowmenter setting, measuring pump starts the aperture of the automatic regulating valve door with the increase of weight to reduce charging rate, until weight closes measuring pump, completely to complete the accurate measurement to material after reaching the value of final setting.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the present invention first specific embodiment;
Fig. 2 is the schematic diagram of the present invention second specific embodiment.
In figure: 1, liquid caustic soda measuring tank; 2, liquid caustic soda bucket; 3, acid solution bucket; 4, in and still; 5, PLC; 6, the first control valve; 7, the second control valve; 8, temperature sensor; 9, to weigh acquisition module; 10, control valve; 11, measuring pump; 12, Pressure gauge; 13, measuring pump control system; 14, mass flowmenter.
Detailed description of the invention
Referring to figs. 1 through Fig. 2, the present invention will be further described.
Current acid-base neutralization reaction, due to not to the accurate control of acid solution or the charging of alkali lye amount, in the production of reality, all can have following problem: first, make carrying out in the process of reacting, there will be the consumption of acid solution more than alkali lye, or the consumption of alkali lye is more than the phenomenon of acid solution, add acid solution or the too much consumption of alkali lye, be unfavorable for environmental protection; The second, after neutralization, unnecessary acid solution or alkali lye can have influence on the chemical property (such as pH value) of product, thus can not reach people and estimate this performance reached of product, thus have impact on the production of subsequent technique; 3rd, in whole neutralization reaction process, can not carry out real-time accurate control, thus well can not ensure the effect of acid-base neutralization to neutralization reaction, therefore the present invention better resolves this problem by adopting following specific embodiment.
With reference to shown in Fig. 1, in the first specific embodiment, a kind of neutralization reaction device, comprise liquid caustic soda measuring tank 1, liquid caustic soda bucket 2, acid solution bucket 3, in and PLC 5 described in still 4 and PLC 5(select into: Siemens S7200CPU222), in the described and top of still 4 offers two charging apertures, one of them charging aperture connects liquid caustic soda measuring tank 1 and liquid caustic soda bucket 2 successively, another charging aperture connects acid solution bucket 3, it is characterized in that: described neutralization reaction device also includes the first control valve 6 and the accurate control unit for accurately controlling material, first control valve 6 is arranged on any one charging aperture, temperature sensor 8 is built-in with still 4 in described, and by and still 4 in temperature signal be delivered to PLC 5, and the switch uninterrupted of the first control valve 6 is controlled according to PLC 5.
With reference to shown in Fig. 1, described accurate control unit is accurately controlled material by Weighing module control system, during described first control valve 6 is arranged on and between still 4 and acid solution bucket 3, from liquid caustic soda measuring tank 1 to and still 4 is connected with successively and is equipped with control valve 10 and measuring pump 11, the second control valve 7 for regulating liquid caustic soda uninterrupted is also provided with between described liquid caustic soda measuring tank 1 and liquid caustic soda bucket 2, described accurate control unit include be arranged on liquid caustic soda measuring tank 1 and in and still 4 on acquisition module 9 of weighing, described weigh acquisition module 9 by liquid caustic soda measuring tank 1 and in and the weight signal of still 4 be delivered to PLC 5, and the switch uninterrupted of the second control valve 7 is controlled according to PLC 5.
With reference to shown in Fig. 1, described liquid caustic soda measuring tank 1 and in and still 4 is all provided with Pressure gauge 12, can real-time monitoring go out liquid caustic soda measuring tank 1 and in and pressure values in still 4.
With reference to shown in Fig. 1, described first control valve 6 is operated pneumatic valve or electrically operated valve, and described second control valve 7 is operated pneumatic valve or electrically operated valve, and described control valve 10 is pneumatic ball valve.
With reference to shown in Fig. 1, described liquid caustic soda measuring tank 1 and in and be provided with high some liquid level and low spot liquid level in still 4, and realize liquid level display and data output by its inner pressure sensor arranged.
With reference to shown in Fig. 1, the work of the first specific embodiment has following steps.
A: by be arranged on liquid caustic soda measuring tank 1 and in and pressure sensor in still 4, realize the output of display to its liquid level and data, and the data exported are delivered in PLC 5.
B: in the neutralization reaction starting stage, the Data Control PLC 5 that pressure sensor exports is to complete negative-pressure feeding, described negative-pressure feeding is for opening, closing corresponding vacuum, the control valve 10 of blowdown piping and the switching of the first control valve 6, second control valve 7, to realize automatically having controlled to feed intake.
C: in the neutralization reaction incipient stage, material in liquid caustic soda bucket 2 passes through the second control valve 7 to feed in liquid caustic soda measuring tank 1, material in acid solution bucket 3 by the first control valve 6 in and still 4 feed, when liquid caustic soda measuring tank 1 or in and the weight of still 4 reaches the intermediate weight that acquisition module 9 of weighing sets time, two control valves start the aperture of the automatic regulating valve door with the increase of weight, until weight closes two control valves, completely to complete the accurate measurement to material after reaching the value of final setting.
With reference to shown in Fig. 1, the operation principle of the first specific embodiment is: in the starting stage of neutralization reaction, due to liquid caustic soda bucket 2 and in and liquid level in still 4 all lower than low spot liquid level, thus play the Real-Time Monitoring to its liquid level respectively by the pressure sensor arranged in it, to realize the display of its liquid level and the output of data, and the data exported are delivered to PLC 5, this process is: pressure sensor moment monitoring liquid caustic soda measuring tank 1 and in and actual pressure value in still 4, and be that digital transfer arrives PLC 5 by A/D module converts, PLC 5 is by the value comparing actual value Yu set, after obtaining deviate in PLC 5 inside after PID arithmetic, be passed to D/A module and obtain analog quantity, PLC 5 passes through this analog quantity to control the aperture of control valve 10, to complete negative-pressure feeding, negative-pressure feeding is for opening, close corresponding vacuum, the control valve 10 of blowdown piping and the first control valve 6, the switching of the second control valve 7, to realize automatically having controlled to feed intake.
With reference to shown in Fig. 1, in the stage of reaction of neutralization reaction, liquid caustic soda in liquid caustic soda bucket 2 passes through the second control valve 7 after feed in liquid caustic soda measuring tank 1, when the weight of liquid caustic soda measuring tank 1 reaches the intermediate weight of acquisition module 9 setting of weighing, weigh acquisition module 9 to PLC 5 transmission of signal, this process is: heavy acquisition module moment monitoring liquid caustic soda measuring tank 1 and in and gravimetric value in still 4, and be that digital transfer arrives PLC 5 by A/D module converts, PLC 5 is by the value comparing actual value Yu set, after obtaining deviate in PLC 5 inside after PID arithmetic, be passed to D/A module and obtain analog quantity, PLC 5 by this analog quantity to control the aperture that the second control valve 7 starts the automatic regulating valve door with the increase of weight, until weight closes the second control valve 7 after reaching the value of final setting completely, thus the accurate measurement realized liquid caustic soda charging, meanwhile, with above-mentioned operation principle, to the control to acid solution charging, also can by heavy acquisition module, PLC 5 and the first control valve 6, realize the accurate measurement to acid solution charging.
With reference to shown in Fig. 2, in the second specific embodiment, comprise liquid caustic soda measuring tank 1, liquid caustic soda bucket 2, acid solution bucket 3, in and still 4 and PLC 5, in the described and top of still 4 offers two charging apertures, one of them charging aperture connects liquid caustic soda measuring tank 1 and liquid caustic soda bucket 2 successively, another charging aperture connects acid solution bucket 3, it is characterized in that: described neutralization reaction device also includes the first control valve 6 and the accurate control unit for accurately controlling material, first control valve 6 is arranged on any one charging aperture, temperature sensor 8 is built-in with still 4 in described, and by and still 4 in temperature signal be delivered to PLC 5, and the switch uninterrupted of the first control valve 6 is controlled according to PLC 5.
With reference to shown in Fig. 2, described accurate control unit is accurately controlled material by Weighing module control system, and described accurate control unit is accurately controlled by measuring pump control system 13 pairs of materials.
With reference to shown in Fig. 2, during described first control valve 6 is arranged on and between still 4 and liquid caustic soda measuring tank 1, between liquid caustic soda measuring tank 1 and liquid caustic soda bucket 2 and acid solution bucket 3 and in and be all connected by accurate control unit between still 4, described accurate control unit includes the control valve 10, measuring pump 11 and the mass flowmenter 14 that are connected successively and arrange, and described control valve 10 is arranged near liquid caustic soda bucket 2 or acid solution bucket 3.
With reference to shown in Fig. 2, described liquid caustic soda measuring tank 1 and in and be provided with high some liquid level and low spot liquid level in still 4, and realize liquid level display and data output by its inner pressure sensor arranged.
With reference to shown in Fig. 2, the work of the second specific embodiment has following steps.
A: by be arranged on liquid caustic soda measuring tank 1 and in and pressure sensor in still 4, realize the output of display to its liquid level and data, and the data exported are delivered to PLC 5.
B: in the neutralization reaction starting stage, the Data Control PLC 5 that pressure sensor exports is to complete material, described material is open, close the switching that product pump, control valve 10 and the first control valve 6 open, close, to realize automatically having controlled throwing.
C: in the neutralization reaction incipient stage, material in liquid caustic soda bucket 2 and acid solution bucket 3 by measuring pump 11, mass flowmenter 14 flow to respectively liquid caustic soda measuring tank 1 and in and still 4, the weight calculating material and flow through accumulated by mass flowmenter 14, when material will reach the weight of mass flowmenter 14 setting, measuring pump 11 starts the aperture of the automatic regulating valve door with the increase of weight to reduce charging rate, until weight closes measuring pump 11, completely to complete the accurate measurement to material after reaching the value of final setting.
With reference to shown in Fig. 2, the operation principle of the second specific embodiment is: in the starting stage of neutralization reaction, due to liquid caustic soda bucket 2 and in and liquid level in still 4 all lower than low spot liquid level, thus play the Real-Time Monitoring to its liquid level respectively by the pressure sensor arranged in it, to realize the display of its liquid level and the output of data, and the data exported are delivered to PLC 5, this process is: pressure sensor moment monitoring liquid caustic soda measuring tank 1 and in and actual pressure value in still 4, and be that digital transfer arrives PLC 5 by A/D module converts, PLC 5 is by the value comparing actual value Yu set, after obtaining deviate in PLC 5 inside after PID arithmetic, be passed to D/A module and obtain analog quantity, PLC 5 passes through this analog quantity to control the aperture of control valve 10, to complete material, described material is for opening, close product pump, control valve 10 and the first control valve 6 are opened, the switching of closing, to realize automatically having controlled throwing.
With reference to shown in Fig. 2, in the stage of reaction of neutralization reaction, in the neutralization reaction incipient stage, material in liquid caustic soda bucket 2 and acid solution bucket 3 is by measuring pump 11, mass flowmenter 14 flow to respectively liquid caustic soda measuring tank 1 and in and still 4, the weight calculating material and flow through accumulated by mass flowmenter 14, when material will reach the weight of mass flowmenter 14 setting, measuring pump 11 to this process of PLC 5 transmission of signal is: measuring pump 11 moment monitors the mass flow in liquid caustic soda bucket 2 and acid solution bucket 3, and be that digital transfer arrives PLC 5 by A/D module converts, PLC 5 is by the value comparing actual value Yu set, after obtaining deviate in PLC 5 inside after PID arithmetic, be passed to D/A module and obtain analog quantity, PLC 5 passes through this analog quantity to control measuring pump 11, measuring pump 11 starts the aperture of the automatic regulating valve door with the increase of weight to reduce charging rate, until weight closes measuring pump 11 after reaching the value of final setting completely, to complete the accurate measurement to material.
With reference to shown in Fig. 1 or Fig. 2, in addition, the present invention also can in and the rate of heat production of control neutralization reaction heat in still 4, the control principle of neutralization reaction heat is: in and still 4 neutralization reaction produce heat by and still 4 chuck, inner coil pipe or outer circulation condenser in chilled water take away, in and temperature in still 4 by temperature sensor 8 also control liquid caustic soda measuring tank 1 in and the charging rate of still 4: a kind of mode be in and in still 4 temperature raise and regulate the aperture of the first control valve 6 and the second control valve 7 to diminish, otherwise then aperture becomes large; Another kind of mode for regulating measuring pump 11, in and temperature height in still 4 then adjust flux aperture diminish, otherwise then aperture becomes large.
With reference to shown in Fig. 1 or Fig. 2, and the flow of the first control valve 6, second control valve 7 and measuring pump 11 can set in PLC 5, and the governing speed of the first control valve 6, second control valve 7 and measuring pump 11 then can be set by pid parameter.
With reference to shown in Fig. 1 or Fig. 2, in addition, the operation of described control valve 10 all can operate on the touchscreen, and chilled water turnover temperature is also to operate on the touchscreen, and touch-screen selects the single-chip microcomputer product with RS485 communication interface, temperature sensor 8.
With reference to shown in Fig. 1 or Fig. 2, the present invention has the following advantages: the first, by neutralization reaction process to the accurate control of material, make the consumption of acid solution and alkali lye controlled, to make acid solution and alkali lye generation complete reaction, avoid the unnecessary waste of acid solution or alkali lye; The second, by neutralization reaction process to the accurate control of material, acid solution and alkali lye can be neutralized completely, thus the chemical property of product can not be had influence on; 3rd, by neutralization reaction process to the accurate control of material, effectively ensure that the effect of acid-base neutralization; 4th, the present invention passes through the powerful programming Control function of PLC 5 Programmable Logic Controller, demand according to chemical technology can work out different programs, both Artificial Control and unstability can be reduced, solve Artificial Control and difficult point, multi-section time can be set again flexibly control, solve the automatic control function of neutralization reaction.
The above is only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, and all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a neutralization reaction device, it is characterized in that: comprise liquid caustic soda measuring tank, liquid caustic soda bucket, acid solution bucket, in and still and PLC, in the described and top of still offers two charging apertures, one of them charging aperture connects liquid caustic soda measuring tank and liquid caustic soda bucket successively, and another charging aperture connects acid solution bucket;
Described neutralization reaction device also includes the first control valve and the accurate control unit for accurately controlling material;
Described first control valve is arranged on any one charging aperture;
In described and still be built-in with temperature sensor, and by and temperature signal in still be delivered to PLC, and control the switch uninterrupted of the first control valve according to PLC.
2. a kind of neutralization reaction device according to claim 1, is characterized in that: described accurate control unit is accurately controlled material by Weighing module control system.
3. a kind of neutralization reaction device according to claim 2, is characterized in that: during described first control valve is arranged on and between still and acid solution bucket;
From liquid caustic soda measuring tank to and still direction is connected with successively and is equipped with control valve and measuring pump, be also provided with the second control valve for regulating liquid caustic soda uninterrupted between described liquid caustic soda measuring tank and liquid caustic soda bucket;
Described accurate control unit include be arranged on liquid caustic soda measuring tank and in and still on acquisition module of weighing;
Described weigh acquisition module by liquid caustic soda measuring tank and in and the weight signal of still be delivered to PLC, and control the switch uninterrupted of the second control valve according to PLC.
4. a kind of neutralization reaction device according to claim 3, is characterized in that: described liquid caustic soda measuring tank and in and still on all Pressure gauge is installed.
5. a kind of neutralization reaction device according to claim 4, it is characterized in that: described first control valve is operated pneumatic valve or electrically operated valve, described second control valve is operated pneumatic valve or electrically operated valve, and described control valve is pneumatic ball valve.
6. a kind of neutralization reaction device according to claim 5, is characterized in that: described accurate control unit is accurately controlled material by measuring pump control system.
7. a kind of neutralization reaction device according to claim 6, is characterized in that: during described first control valve is arranged on and between still and liquid caustic soda measuring tank;
Between liquid caustic soda measuring tank and liquid caustic soda bucket and acid solution bucket and in and be all connected by accurate control unit between still;
Described accurate control unit includes the control valve, measuring pump and the mass flowmenter that are connected successively and arrange, and described control valve is arranged near liquid caustic soda bucket or acid solution bucket.
8. according to any one neutralization reaction device described in claim 1 to 7, it is characterized in that: described liquid caustic soda measuring tank and in and be provided with high some liquid level and low spot liquid level in still, and realize liquid level display and data output by its inner pressure sensor arranged.
9. an automatic control method for neutralization reaction device, comprises the neutralization reaction device in claim 1 to 5 described in any one, it is characterized in that: include following steps,
A: by be arranged on liquid caustic soda measuring tank and in and pressure sensor in still, realize the output of display to its liquid level and data, and the data exported are delivered in PLC;
B: in the neutralization reaction starting stage, the Data Control PLC that pressure sensor exports is to complete negative-pressure feeding, described negative-pressure feeding is for opening, closing corresponding vacuum, and the switching of the control valve of blowdown piping and the first control valve, the second control valve, to realize automatically having controlled to feed intake;
C: in the neutralization reaction incipient stage, material in liquid caustic soda bucket passes through the second control valve to feed in liquid caustic soda measuring tank, material in acid solution bucket by the first control valve in and still feed, when liquid caustic soda measuring tank or in and the weight of still reaches the intermediate weight of acquisition module setting of weighing time, two control valves start the aperture of the automatic regulating valve door with the increase of weight, until weight closes two control valves, completely to complete the accurate measurement to material after reaching the value of final setting.
10. an automatic control method for neutralization reaction device, includes as the neutralization reaction device in claim 1,6,7 as described in any one, it is characterized in that: include following steps,
A: by be arranged on liquid caustic soda measuring tank and in and pressure sensor in still, realize the output of display to its liquid level and data, and the data exported are delivered to PLC;
B: in the neutralization reaction starting stage, the Data Control PLC that pressure sensor exports is to complete material, described material is open, close the switching that product pump, control valve and the first control valve open, close, to realize automatically having controlled throwing;
C: in the neutralization reaction incipient stage, material in liquid caustic soda bucket and acid solution bucket by measuring pump, mass flowmenter flow to respectively liquid caustic soda measuring tank and in and still, mass flowmenter accumulation calculates the weight that material flows through, when material will reach the weight of mass flowmenter setting, measuring pump starts the aperture of the automatic regulating valve door with the increase of weight to reduce charging rate, until weight closes measuring pump, completely to complete the accurate measurement to material after reaching the value of final setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410775190.4A CN104474988B (en) | 2014-12-15 | 2014-12-15 | A kind of automatic control method neutralizing reaction unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410775190.4A CN104474988B (en) | 2014-12-15 | 2014-12-15 | A kind of automatic control method neutralizing reaction unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104474988A true CN104474988A (en) | 2015-04-01 |
| CN104474988B CN104474988B (en) | 2016-09-14 |
Family
ID=52749672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410775190.4A Expired - Fee Related CN104474988B (en) | 2014-12-15 | 2014-12-15 | A kind of automatic control method neutralizing reaction unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104474988B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105289415A (en) * | 2015-10-29 | 2016-02-03 | 佛山市优耐高新材料有限公司 | Polyurethane production system and polyurethane production method |
| CN106082417A (en) * | 2016-07-29 | 2016-11-09 | 重庆鹏雷汽车配件有限公司 | Electroplate liquid cleaning plant |
| CN106237965A (en) * | 2016-08-31 | 2016-12-21 | 无锡中天固废处置有限公司 | A kind of reactor using reduced pressure distillation process to dispose the fluorine-containing material of separation and recovery |
| CN107658521A (en) * | 2017-10-20 | 2018-02-02 | 骆驼集团武汉光谷研发中心有限公司 | Lithium ion battery aluminum alkali soluble and its circulation utilization method and special equipment |
| CN108291883A (en) * | 2015-09-30 | 2018-07-17 | 拜耳股份公司 | Neutralized system |
| CN110162112A (en) * | 2019-06-20 | 2019-08-23 | 湖南正清制药集团股份有限公司 | A kind of pH value regulating device and method for extracting cucoline |
| CN110217807A (en) * | 2019-07-18 | 2019-09-10 | 长沙有色冶金设计研究院有限公司 | Sinker system and sinker technique in a kind of production of lithium carbonate |
| CN112439364A (en) * | 2020-12-04 | 2021-03-05 | 浙江中控技术股份有限公司 | High-precision automatic liquid feeding device and method |
| CN112694097A (en) * | 2021-02-07 | 2021-04-23 | 深圳瑞赛环保科技有限公司 | Control method for chemical waste-throwing phosphoric acid treatment and synthesis of aluminum phosphate molecular sieve |
| CN114367259A (en) * | 2021-12-17 | 2022-04-19 | 江苏春江润田农化有限公司 | Trifluoro acetylenic acid methyl ester apparatus for producing with batching automatically regulated puts in function |
| CN115382469A (en) * | 2022-09-23 | 2022-11-25 | 安徽华星化工有限公司 | O-cresol feeding device and implementation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2215327A1 (en) * | 1972-03-29 | 1973-10-18 | Kueppersbusch | DEVICE FOR DEFROSTING FROZEN FOOD |
| US4571442A (en) * | 1983-09-19 | 1986-02-18 | Institut Francais Du Petrole | Process for selectively hydrogenating acetylene in a mixture of acetylene and ethylene |
| CN101472935A (en) * | 2006-04-27 | 2009-07-01 | V.B.医疗保险私人有限公司 | Continuous neutralizer mixer reactor and a continuous process for quenching chlorination reaction mixture in production of chlorinated sucrose |
| CN202942885U (en) * | 2012-11-21 | 2013-05-22 | 淮安嘉诚高新化工股份有限公司 | Liquid phase catalysis hydrogenation reaction device |
-
2014
- 2014-12-15 CN CN201410775190.4A patent/CN104474988B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2215327A1 (en) * | 1972-03-29 | 1973-10-18 | Kueppersbusch | DEVICE FOR DEFROSTING FROZEN FOOD |
| US4571442A (en) * | 1983-09-19 | 1986-02-18 | Institut Francais Du Petrole | Process for selectively hydrogenating acetylene in a mixture of acetylene and ethylene |
| CN101472935A (en) * | 2006-04-27 | 2009-07-01 | V.B.医疗保险私人有限公司 | Continuous neutralizer mixer reactor and a continuous process for quenching chlorination reaction mixture in production of chlorinated sucrose |
| CN202942885U (en) * | 2012-11-21 | 2013-05-22 | 淮安嘉诚高新化工股份有限公司 | Liquid phase catalysis hydrogenation reaction device |
Non-Patent Citations (1)
| Title |
|---|
| 李涛等: "球形Ni(OH)2制备中pH在线检测及控制系统的设计和应用", 《有色金属》, 31 May 2011 (2011-05-31), pages 118 - 121 * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108291883B (en) * | 2015-09-30 | 2021-06-22 | 拜耳股份公司 | Neutralization system |
| CN108291883A (en) * | 2015-09-30 | 2018-07-17 | 拜耳股份公司 | Neutralized system |
| CN105289415A (en) * | 2015-10-29 | 2016-02-03 | 佛山市优耐高新材料有限公司 | Polyurethane production system and polyurethane production method |
| CN106082417A (en) * | 2016-07-29 | 2016-11-09 | 重庆鹏雷汽车配件有限公司 | Electroplate liquid cleaning plant |
| CN106237965A (en) * | 2016-08-31 | 2016-12-21 | 无锡中天固废处置有限公司 | A kind of reactor using reduced pressure distillation process to dispose the fluorine-containing material of separation and recovery |
| CN107658521A (en) * | 2017-10-20 | 2018-02-02 | 骆驼集团武汉光谷研发中心有限公司 | Lithium ion battery aluminum alkali soluble and its circulation utilization method and special equipment |
| CN110162112A (en) * | 2019-06-20 | 2019-08-23 | 湖南正清制药集团股份有限公司 | A kind of pH value regulating device and method for extracting cucoline |
| CN110217807A (en) * | 2019-07-18 | 2019-09-10 | 长沙有色冶金设计研究院有限公司 | Sinker system and sinker technique in a kind of production of lithium carbonate |
| CN112439364A (en) * | 2020-12-04 | 2021-03-05 | 浙江中控技术股份有限公司 | High-precision automatic liquid feeding device and method |
| CN112694097A (en) * | 2021-02-07 | 2021-04-23 | 深圳瑞赛环保科技有限公司 | Control method for chemical waste-throwing phosphoric acid treatment and synthesis of aluminum phosphate molecular sieve |
| CN112694097B (en) * | 2021-02-07 | 2023-09-12 | 深圳瑞赛环保科技有限公司 | Control method for chemical waste disposal phosphoric acid treatment and aluminum phosphate molecular sieve synthesis |
| CN114367259A (en) * | 2021-12-17 | 2022-04-19 | 江苏春江润田农化有限公司 | Trifluoro acetylenic acid methyl ester apparatus for producing with batching automatically regulated puts in function |
| CN115382469A (en) * | 2022-09-23 | 2022-11-25 | 安徽华星化工有限公司 | O-cresol feeding device and implementation method thereof |
| CN115382469B (en) * | 2022-09-23 | 2024-02-27 | 安徽华星化工有限公司 | O-cresol feeding device and implementation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104474988B (en) | 2016-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104474988A (en) | Neutralization reaction device and automatic control method | |
| CN201404803Y (en) | Automatic control device for paint producing reaction kettle | |
| CN104785466A (en) | Automatic online cleaning system and method of intelligent circulating cooling water heat exchanger | |
| CN106125776A (en) | Devices and methods therefor steam flow being evaporated, measure and automatically controlling | |
| CN207667629U (en) | A kind of safe and efficient alkoxylating catalyst preparation system | |
| CN105174402B (en) | A kind of automatic adding flocculant system settled for black water and its method | |
| CN204058337U (en) | A kind of continous way polyurethane water-proof paint production line | |
| CN204395945U (en) | Polycarboxylate water-reducer automatic production process equipment | |
| CN202956673U (en) | Automatic control system based on liquid level of single water tank | |
| CN203913351U (en) | A kind of cut tobacco damping machine constant temperature priming apparatus | |
| CN203794613U (en) | Automatic rationing water addition device | |
| CN203469990U (en) | Novel reaction kettle | |
| CN201096698Y (en) | Online automatic detection device for candy liquid vertical degree | |
| CN205907759U (en) | Condensate recovering unit of controllable intermittent type that programmes work | |
| CN208145937U (en) | It is a kind of can adjust automatically reaction kettle outer wall water cooling temperature phenolic resin process units | |
| CN206871403U (en) | A kind of feed back control device | |
| CN209302240U (en) | A kind of controllable temperature safflower extraction element | |
| CN204362872U (en) | Profit water controller | |
| CN208145939U (en) | It is a kind of can adjust automatically reaction temperature phenolic resin process units | |
| CN202205106U (en) | Online adjusting and monitoring system for pH value of starch milk | |
| CN108861159B (en) | Glass fiber chemical raw material storage tank and control method thereof | |
| CN206553632U (en) | A kind of electrolytic cell automates feeding device with hydrogen fluoride | |
| CN104211093A (en) | Automatic sodium metabisulfite blending and alkalifying device and method | |
| CN209264198U (en) | A kind of constant-temperature water supply device for the close property detection of packing container | |
| CN210103895U (en) | Automatic control system of condenser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 325025 Zhejiang Province, Wenzhou City Economic Development Zone Shacheng Industrial Zone 73 sand road No. 46 Applicant after: Shi Xueming Applicant after: WENZHOU SUOTE PHARMACEUTICAL AND CHEMICAL ENGINEERING CO., LTD. Address before: 325025 Zhejiang Province, Wenzhou City Economic Development Zone Shacheng Industrial Zone 73 sand road No. 46 Applicant before: WENZHOU SUOTE PHARMACEUTICAL AND CHEMICAL ENGINEERING CO., LTD. Applicant before: Shi Xueming |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160914 Termination date: 20181215 |