CN108144543A - Step-by-step movement concentration liquid mixing system and with liquid method - Google Patents
Step-by-step movement concentration liquid mixing system and with liquid method Download PDFInfo
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- CN108144543A CN108144543A CN201611105868.3A CN201611105868A CN108144543A CN 108144543 A CN108144543 A CN 108144543A CN 201611105868 A CN201611105868 A CN 201611105868A CN 108144543 A CN108144543 A CN 108144543A
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- liquid
- dispensing box
- concentration
- metering pump
- stoste
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/211—Measuring of the operational parameters
- B01F35/2112—Level of material in a container or the position or shape of the upper surface of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/2132—Concentration, pH, pOH, p(ION) or oxygen-demand
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/7176—Feed mechanisms characterised by the means for feeding the components to the mixer using pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/71805—Feed mechanisms characterised by the means for feeding the components to the mixer using valves, gates, orifices or openings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/81—Forming mixtures with changing ratios or gradients
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/83—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices
- B01F35/831—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices using one or more pump or other dispensing mechanisms for feeding the flows in predetermined proportion, e.g. one of the pumps being driven by one of the flows
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/83—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices
- B01F35/831—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices using one or more pump or other dispensing mechanisms for feeding the flows in predetermined proportion, e.g. one of the pumps being driven by one of the flows
- B01F35/8311—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices using one or more pump or other dispensing mechanisms for feeding the flows in predetermined proportion, e.g. one of the pumps being driven by one of the flows with means for controlling the motor driving the pumps or the other dispensing mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/83—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices
- B01F35/833—Flow control by valves, e.g. opening intermittently
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/45—Mixing in metallurgical processes of ferrous or non-ferrous materials
Abstract
The invention discloses a kind of step-by-step movement concentration liquid mixing systems, the liquid mixing system include two sets it is identical with liquid component, the often set includes dispensing box with liquid component, metering pump, liquid level gauge, blender, controller, concentration detector, stoste filling line and valve, desalted water filling line and valve, the desalted water filling line passes through metering pump, liquid-filling valve reaches dispensing box, liquid level gauge is mounted in dispensing box, liquid level gauge signal connects controller, the stoste filling line passes through metering pump, introduction valve reaches dispensing box, blender is mounted in dispensing box, controller control blender operation, concentration detector is mounted in dispensing box, the controller is directly connected to introduction valve and metering pump respectively by pipeline.This method greatly improves the control accuracy of leveling precision concentration.
Description
Technical field
The present invention relates to a kind of liquid mixing systems, and in particular to a kind of step-by-step movement concentration liquid mixing system and with liquid method belongs to
Cold rolling production technical field.
Background technology
In cold rolling levelling production process, temper rolling technology is tried out extensively.Lead to when strip passes through flattening process
It crosses smooth nozzle for liquid and leveling precision is sprayed to roll different parts, the purpose is to remove belt steel surface residual object and antirust.Generally,
Leveling precision is stirred by stoste and desalted water according to processing compound, is matched by leveling precision concentration requirement, is prepared
Good leveling precision is loaded in dispensing box, and the concentration control accuracy of leveling precision is particularly important to produced on-site, in the prior art, is put down
Whole liquid existed in practical process for preparation due to the problem of concentration precision preparation is low caused by detection error, temperature fluctuation, in order to
The technical problem is solved, those skilled in the art has attempted to new scheme, but the problem is never properly solved
Certainly.
Invention content
The present invention is exactly for the technical problems in the prior art, to provide a step-by-step movement concentration liquid mixing system and match
Method is put, this method greatly improves the control accuracy of leveling precision concentration.
In order to solve technical problem in the prior art, technical scheme is as follows:A kind of step-by-step movement concentration
Liquid mixing system, which is characterized in that the liquid mixing system include two sets it is identical with liquid component, the often set is with liquid component including matching
Liquid case, metering pump, liquid level gauge, blender, controller, concentration detector, stoste filling line and valve, desalted water filling line
And valve, the desalted water filling line reach dispensing box by metering pump, liquid-filling valve, liquid level gauge is mounted in dispensing box, liquid
Position meter signal connection controller, the stoste filling line reach dispensing box by metering pump, introduction valve, and blender, which is mounted on, matches
In liquid case, controller control blender operation, concentration detector is mounted in dispensing box, and the controller is distinguished straight by pipeline
Introduction valve and metering pump are connect in succession.
As a modification of the present invention, for the dispensing box for loading and preparing leveling precision, entire liquid mixing system has two
A dispensing box, a dispensing box is with a dispensing box with liquid, match liquid, come into operation in turn in turn, reaches by two dispensing box chests
The stabilization of concentration and liquid level;The concentration detector two, is respectively placed in two dispensing box, for detecting leveling precision in real time
Concentration, and detected value is sent to controller;The liquid level gauge two, is respectively placed in two dispensing box, flat for detecting in real time
The liquid level of whole liquid, and detected value is sent to controller;Two, the blender, is respectively placed in two dispensing box, for smooth
Mixing is stirred to stoste and desalted water in liquid process for preparation, the concentration for reaching prepared leveling precision is true, stable;It is described
Stoste filling line and valve, are respectively used to two dispensing box injection stostes by totally two sets, and setting is with a electromagnetism in every circuits
Valve;The desalted water filling line and valve, are respectively used to two dispensing box injection stostes, are set in every circuits by totally two sets
One solenoid valve.
A kind of step-by-step movement concentration liquid mixing system matches liquid method, which is characterized in that the described method comprises the following steps:
(1)The liquid level of liquid level gauge detection dispensing box simultaneously send detected value to controller, and each dispensing box level set value is X
L;
(2)Concentration detector detects leveling precision concentration and send detected value Ya to controller;And each dispensing box concentration set point
For Y%;
(3)When a dispensing box liquid level is less than Z L, dispensing box is by the pattern switching that comes into operation with liquid pattern;Another dispensing box by etc.
The state for the treatment of is switched to the pattern of coming into operation;
(4)Controller matches level set value X, concentration set point Y, residual liquid level Z and the metering of the dispensing box of liquid as needed
Pump discharge A is calculated with the amount of stoste L1 metering pumps running time T 1 and desalination water L2 required for during liquid, and calculation formula is such as
Under:
L1=(X-Z)*Y% (1)
L2=X-Z-L1 (2)
(5)Step(4)In further include controller according to metering pump discharge A, the amount of stoste L1 and desalination water L2 to calculate with liquid mistake
Stoste metering pump running time T 1 and desalted water metering pump running time T 2 in journey, calculation formula is as follows:
T1=L1/A1 (3)
T2=L2/A2 (4)
(6)When dispensing box is switched to liquid pattern, controller control stoste filling line solenoid valve is opened, desalted water filling line
On solenoid valve open, while metering pump startup is controlled to run to dispensing box fluid injection, stoste stops after the metering pump operation T1 times,
Desalted water stops after the metering pump operation T2 times;
(7)Further, after two metering pumps are out of service, enter concentration trim process with liquid process, step-by-step movement concentration matches liquid
Method is further comprising the steps of:
A. work as concentration set point>Concentration actual value, and the two deviation is more than 0.1%, starts stoste metering pump operation, until
Or work as the two deviation and be less than 0.1%, stop stoste metering pump;
B. work as concentration set point<Concentration actual value, and the two deviation overflowed 0.1%, started desalted water metering pump operation, directly
It is less than 0.1% to or when the two deviation, stops desalted water metering pump;
C. when dispensing box liquid level is less than or equal to level set value, concentration set point and concentration actual value deviation are less than or equal to 0.1%,
Entirely terminate with liquid process.
Relative to the prior art, the advantages of technical solution, is as follows, which can be realized matching for leveling precision concentration
Liquid requirement is entirely divided into 2 stages with the control of liquid concentration:First stage controls metering pump by the setting of liquid level and concentration
The fluid injection time then enters the fine tuning stage with liquid, i.e., carries out stepping fluid injection to metering pump by concentration deviation range, final to ensure
Concentration control accuracy, the step-by-step movement concentration control system and method are simple and convenient, and practical application effect is good.
Description of the drawings
Fig. 1 leveling precisions match hydraulic control heating system pipe figure.
Fig. 2 metering pumps step-by-step movement starts figure with liquid.
Specific embodiment
In order to further enhance the appreciation and understanding of the invention, with reference to the accompanying drawings and detailed description, it is further described this
Invention.
Embodiment 1:Referring to Fig. 1, a kind of step-by-step movement concentration liquid mixing system, the liquid mixing system include two sets it is identical with liquid
Component, the often set include dispensing box, metering pump, liquid level gauge, blender, controller, concentration detector, stoste note with liquid component
Enter pipeline and valve, desalted water filling line and valve, the desalted water filling line is reached by metering pump, liquid-filling valve with liquid
Case, liquid level gauge are mounted in dispensing box, and liquid level gauge signal connection controller, the stoste filling line passes through metering pump, injection
Valve reaches dispensing box, and blender is mounted in dispensing box, and controller control blender operation, concentration detector is mounted on dispensing box
Interior, the controller is directly connected to introduction valve and metering pump respectively by pipeline.The controller is directly connected respectively by pipeline
Connect introduction valve and metering pump, the dispensing box is for loading and preparing leveling precision, and entire liquid mixing system is there are two dispensing box, one
Dispensing box is with, dispensing box, with liquid, two dispensing box chests reach concentration and liquid level in turn with liquid, come into operation in turn
Stablize;The concentration detector two, is respectively placed in two dispensing box, for detecting the concentration of leveling precision in real time, and will inspection
Measured value is sent to controller;The liquid level gauge two, is respectively placed in two dispensing box, for detecting the liquid level of leveling precision in real time,
And detected value is sent to controller;Two, the blender, is respectively placed in two dispensing box, in leveling precision process for preparation
Mixing is stirred to stoste and desalted water, the concentration for reaching prepared leveling precision is true, stable;The stoste filling line
And valve, totally two sets, two dispensing box injection stostes are respectively used to, setting is with a solenoid valve in every circuits;The desalted water
Filling line and valve, are respectively used to two dispensing box injection stostes, a solenoid valve are set in every circuits by totally two sets.
Embodiment 2:Referring to Fig. 1, Fig. 2, a kind of step-by-step movement concentration liquid mixing system matches liquid method, and the method includes following
Step:(1)The liquid level of liquid level gauge detection dispensing box simultaneously send detected value to controller, and each dispensing box level set value is X
L;
(2)Concentration detector detects leveling precision concentration and send detected value Ya to controller;And each dispensing box concentration set point
For Y%;
(3)When a dispensing box liquid level is less than Z L, dispensing box is by the pattern switching that comes into operation with liquid pattern;Another dispensing box by etc.
The state for the treatment of is switched to the pattern of coming into operation;
(4)Controller matches level set value X, concentration set point Y, residual liquid level Z and the metering of the dispensing box of liquid as needed
Pump discharge A is calculated with the amount of stoste L1 metering pumps running time T 1 and desalination water L2 required for during liquid, and calculation formula is such as
Under:
L1=(X-Z)*Y% (1)
L2=X-Z-L1 (2)
(5)Step(4)In further include controller according to metering pump discharge A, the amount of stoste L1 and desalination water L2 to calculate with liquid mistake
Stoste metering pump running time T 1 and desalted water metering pump running time T 2 in journey, calculation formula is as follows:
T1=L1/A1 (3)
T2=L2/A2 (4)
(6)When dispensing box is switched to liquid pattern, controller control stoste filling line solenoid valve is opened, desalted water filling line
On solenoid valve open, while metering pump startup is controlled to run to dispensing box fluid injection, stoste stops after the metering pump operation T1 times,
Desalted water stops after the metering pump operation T2 times;
(7)Further, after two metering pumps are out of service, enter concentration trim process with liquid process, step-by-step movement concentration matches liquid
Method is further comprising the steps of:
A. work as concentration set point>Concentration actual value, and the two deviation is more than 0.1%, starts stoste metering pump operation, until
Or work as the two deviation and be less than 0.1%, stop stoste metering pump;
B. work as concentration set point<Concentration actual value, and the two deviation overflowed 0.1%, started desalted water metering pump operation, directly
It is less than 0.1% to or when the two deviation, stops desalted water metering pump;
C. when dispensing box liquid level is less than or equal to level set value, concentration set point and concentration actual value deviation are less than or equal to 0.1%,
Entirely terminate with liquid process.
Application example:Referring to Fig. 1, continuous annealing unit planisher is temper rolling technology, and rack inner nozzle is with a level pressure during rolling
Power sprays leveling precision to roll.Entire leveling precision system is by 2 Agitation Tanks, 1 original fluid container and 1 desalination water pot and electromagnetism
Valve, all kinds of detecting elements, pump class composition.It by the input of automatic liquid matching function, can be guaranteed, operate with liquid concentration precision
Personnel are only needed to matching liquid process into line trace, without being intervened, so as to which control be avoided with the otherness during liquid, to protect manually
Stablizing for leveling precision is demonstrate,proved to use.Wherein:
Original fluid container:Volume is 30000L, and stoste carries out stoste addition by the way of once adding, so as to reduce waste and promotion
Field labor efficiency.
Agitation Tank:The Agitation Tank of two 10000L ensures at least to disclosure satisfy that 1 hour when liquid mixing system occurs abnormal
The usage time of leveling precision dilution, meanwhile, reduce the stable components for liquid frequency, ensureing dilution.
Desalination water pot:The desalted water preheating tank of one 15000L, ensure the desalted water into Agitation Tank stablize keep 45 ~
48℃。
A kind of step-by-step movement concentration of the present embodiment match liquid system and method, such as Fig. 1, including dispensing box, stoste metering pump,
Desalted water metering pump, liquid level gauge, blender, controller, concentration detector, stoste filling line valve, desalted water filling line
Valve etc..Leveling precision compounding system such as Fig. 1.
This example only illustrates a dispensing box with liquid process, another dispensing box is without explanation.
(1)Dispensing box level set 80%, residual liquid level 20%, then entire dispensing box need fluid infusion 6000L.
(2)The flux unit of 2 stoste metering pumps be 0.5L/S, 3 desalted water metering pumps flux unit be 6L/S, controller
The run time of this 2 metering pumps is calculated according to amount infused 6000L and concentration setting 2%.
Raw liquor pump metering pump run time:T1=6000*2%/0.5=240S
Desalted water metering pump run time:T2=6000*(1-2%)/6=980S
(3)When 1 dispensing box enters with liquid process, 6 controllers control 8 stoste filling line valves and 9 desalted water filling line valves
Door, while stoste is controlled to measure pump operation, stop after running 240S, desalted water metering pump operation stops after running 980S.
(4)Enter stepping with liquid step with liquid, work as concentration set point>Concentration actual value, and the two deviation is more than
0.1%, start stoste metering pump operation, when the two deviation is less than 0.1%;
(5)Work as concentration set point<Concentration actual value, and the two deviation overflowed 0.1%, started desalted water metering pump operation,
When the two deviation is less than 0.1%;
(6)When dispensing box liquid level is less than or equal to level set value, concentration set point and concentration actual value deviation are less than or equal to
0.1%, entirely terminate with liquid process.
(7)Entirely run with 5 blenders during liquid;Stop with blender after the completion of liquid.
It should be noted that above-described embodiment, is not used for limiting protection scope of the present invention, in above-mentioned technical proposal
On the basis of made equivalents or replacement each fall within the range that the claims in the present invention are protected.
Claims (3)
1. a kind of step-by-step movement concentration liquid mixing system, which is characterized in that the liquid mixing system includes two sets and identical matches liquid component, institute
It states every set and includes dispensing box, metering pump, liquid level gauge, blender, controller, concentration detector, stoste filling line with liquid component
And valve, desalted water filling line and valve, the desalted water filling line reach dispensing box, liquid by metering pump, liquid-filling valve
Position meter is mounted in dispensing box, and liquid level gauge signal connection controller, the stoste filling line is reached by metering pump, introduction valve
Dispensing box, blender are mounted in dispensing box, and controller control blender operation, concentration detector is mounted in dispensing box, institute
It states controller and introduction valve and metering pump is directly connected to by pipeline respectively.
2. step-by-step movement concentration liquid mixing system according to claim 1, which is characterized in that the dispensing box is used to load and match
Leveling precision processed, there are two dispensing box for entire liquid mixing system, and a dispensing box is with a dispensing box is with liquid, two dispensing box
Chest matches liquid, comes into operation in turn in turn, reaches the stabilization of concentration and liquid level;The concentration detector two, is respectively placed in two and matches
In liquid case, for detecting the concentration of leveling precision in real time, and detected value is sent to controller;The liquid level gauge two, is respectively placed in
In two dispensing box, for detecting the liquid level of leveling precision in real time, and detected value is sent to controller;Two, the blender, point
It is not placed in two dispensing box, for being stirred mixing to stoste and desalted water in leveling precision process for preparation, reaches and prepared
Leveling precision concentration it is true, stablize;The stoste filling line and valve, are respectively used to two dispensing box injections by totally two sets
Stoste is often set in circuits with a solenoid valve;The desalted water filling line and valve, are respectively used to two and match by totally two sets
Liquid case injects stoste, and a solenoid valve is set in every circuits.
3. liquid method is matched using step-by-step movement concentration liquid mixing system described in claims 1 or 2, which is characterized in that the method packet
Include following steps:
(1)The liquid level of liquid level gauge detection dispensing box simultaneously send detected value to controller, and each dispensing box level set value is X
L;
(2)Concentration detector detects leveling precision concentration and send detected value Ya to controller;And each dispensing box concentration set point
For Y%;
(3)When a dispensing box liquid level is less than Z L, dispensing box is by the pattern switching that comes into operation with liquid pattern;Another dispensing box by etc.
The state for the treatment of is switched to the pattern of coming into operation;
(4)Controller matches level set value X, concentration set point Y, residual liquid level Z and the metering of the dispensing box of liquid as needed
Pump discharge A is calculated with the amount of stoste L1 metering pumps running time T 1 and desalination water L2 required for during liquid, and calculation formula is such as
Under:
L1=(X-Z)*Y% (1)
L2=X-Z-L1 (2)
(5)Step(4)In further include controller according to metering pump discharge A, the amount of stoste L1 and desalination water L2 to calculate with liquid mistake
Stoste metering pump running time T 1 and desalted water metering pump running time T 2 in journey, calculation formula is as follows:
T1=L1/A1 (3)
T2=L2/A2 (4)
(6)When dispensing box is switched to liquid pattern, controller control stoste filling line solenoid valve is opened, desalted water filling line
On solenoid valve open, while metering pump startup is controlled to run to dispensing box fluid injection, stoste stops after the metering pump operation T1 times,
Desalted water stops after the metering pump operation T2 times;
(7)Further, after two metering pumps are out of service, enter concentration trim process with liquid process, step-by-step movement concentration matches liquid
Method is further comprising the steps of:
A. work as concentration set point>Concentration actual value, and the two deviation is more than 0.1%, starts stoste metering pump operation, until
Or work as the two deviation and be less than 0.1%, stop stoste metering pump;
B. work as concentration set point<Concentration actual value, and the two deviation overflowed 0.1%, started desalted water metering pump operation, directly
It is less than 0.1% to or when the two deviation, stops desalted water metering pump;
C. when dispensing box liquid level is less than or equal to level set value, concentration set point and concentration actual value deviation are less than or equal to 0.1%,
Entirely terminate with liquid process.
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CN109453714A (en) * | 2018-12-28 | 2019-03-12 | 东莞市银锐精密机械有限公司 | A kind of liquid medicine device for formulating |
CN112717825A (en) * | 2020-12-15 | 2021-04-30 | 上海奥栋机电有限公司 | Propylene glycol liquid supplementing device, control method and device thereof, and storage medium |
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CN112973538A (en) * | 2021-02-03 | 2021-06-18 | 上海梦地工业自动控制系统股份有限公司 | Automatic liquid adding and mixing equipment for water used for water purifier test |
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