CN205909922U - Accurate batching control system of carbide raw materials - Google Patents
Accurate batching control system of carbide raw materials Download PDFInfo
- Publication number
- CN205909922U CN205909922U CN201620706663.XU CN201620706663U CN205909922U CN 205909922 U CN205909922 U CN 205909922U CN 201620706663 U CN201620706663 U CN 201620706663U CN 205909922 U CN205909922 U CN 205909922U
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- raw material
- control
- control system
- plc
- hmi
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Abstract
The utility model discloses an accurate batching control system of carbide raw materials, including HMI, PLC, operating instrument, spiral decrement balance, hand -operated gate valve and electronic push -pull valve, PLC connects HMI, control instrument connecting PLC and spiral decrement balance, and decrement balance and operating instrument are connected respectively to hand -operated gate valve and electronic push -pull valve. The utility model discloses can satisfy product quality and large -scale production requirement.
Description
Technical field
The utility model is related to calcium carbide field of smelting, more particularly, to a kind of carbide raw material accurate dosing control system.
Background technology
Technology
The feature that electric furnace produces calcium carbide is the necessary substantial amounts of raw material of working process, and the indices of raw material are stable, first
It is the stable of its chemical composition and granularmetric composition it is ensured that smelting system is stable, so that raw material and electric power resource are able to effective profit
With.The quality that raw material prepares, has very big impact to the working of a furnace.For example, during calcium carbide is smelted, whether reducing agent amount of allocating is suitable, respectively
Plant whether raw material proportioning is stably considerable.This uniformity being not only decided by dispensing mixing and feed way, more important
Be be decided by raw material appropriate proportioning, weigh accuracy.Calcium carbide be by semi-coke reduction proportioning is improper, weighing precision
Low, the excessive or very few region of reducing agent, being smoothed out of impact reduction can occur in stove, destroy CURRENT DISTRIBUTION, cause
In-furnace temperature is uneven.So furnace charge is prepared quality and is only in calcium carbide smelting process and plays a decisive role, furnace charge is to utilize
Various equipment and burden balance composition.The basic demand of these equipment and feed proportioning system is continuously by the furnace charge of regulation proportioning
Put in stove.It follows that various raw materials have conclusive impact through weighing, dispensing fed to boiler to the smelting of calcium carbide.
But in current carbide raw material proportioning process, great majority are feeding devices being interrupted, and be interrupted operation to
Material equipment only has an adjustment effect: i.e. feed change adds the speed of batch bin.Therefore this feeding device has following two kinds
Control mode selects.First: with changeless speed feeding, until reaching the once weighing value of regulation, be then turned off feed
Device.Second: most of raw material maximal rate feed in once weighing, then changes feeding device for low-speed handing system
Degree, closes feeding device until once weighing setting.Both control modes have the disadvantage in that i.e. Aggregate Feeding Error is big, raw
Produce efficiency low it is impossible to meet the requirement of the required a large amount of feeding lot numbers of large-scale production it is impossible to continuous produce.
Utility model content
Utility model purpose: the utility model is directed to the problem that prior art exists, and provides a kind of carbide raw material accurately to join
Material control system, can meet product quality and large-scale production requires, and realize continuous production.
Technical scheme: carbide raw material accurate dosing control system described in the utility model includes hmi (human
Machine interface, man-machine interface), plc (programmable logic controller, Programmable logical controller
Device), control instrument, spiral measuring balance, hand operated gate valve and electric gate valve；Wherein: hmi connects plc, for man-machine interaction；
Control instrument connects plc and spiral measuring balance, and hand operated gate valve and electric gate valve connect spiral measuring balance and controller respectively
Table.
Further, described spiral measuring balance includes Weighing control hopper, frequency converter and conveying worm, wherein: described
Weighing control hopper is provided with LOAD CELLS, and described LOAD CELLS connects to described control instrument, and described frequency converter connects
Control instrument and conveying worm.
Further, described hmi is provided with and opens/stop button, to control batching control system to open/stop.
Further, described hmi is connected with plc by Ethernet.
Further, it is provided with pid adjuster in described control instrument.
Beneficial effect: compared with prior art, its remarkable advantage is the utility model:
1st, Production requirement can be reached by the compound of this system, and system architecture is simple, process control, solve electricity
The exact requirements to various raw material proportionings smelted by stone stove, work continuously and have certain effect for guarantee product quality and production line.
2nd, operation can be made to become very simple in application and production, reduce the work load of workman, effectively improve product
Quality, reduces production cost.
3rd, employ plc control technology, extension is easily；Can be connected by Ethernet with furnace's control system, real
Show the computer management of whole system, and can be by the centralized Control of the feed proportioning system of mistake more than real-time performance.
3rd, using novel measuring balance, the functions such as material transport, batching control, formula design, Product Data Management are realized.
4th, user carries out configuration, programming data management under its friendly hmi man-machine interface, needed for being formed
Operation screen, supervision picture, control interface, alarm screen, real-time tendency curve, historical text and printing reports etc..
5th, provide for operative employee that both pictures and texts are excellent, visual in image operating environment, can easily with various softwares and use
Family program groups is combined together sets up friendly man-machine interface, and satisfaction is actually needed.
Brief description
Fig. 1 is the system block diagram of the embodiment of carbide raw material accurate dosing control system that the utility model provides.
Specific embodiment
As shown in figure 1, the carbide raw material accurate dosing control system of the present embodiment includes hmi, plc, control instrument, spiral
Measuring balance, hand operated gate valve and electric gate valve；Including hmi, plc, control instrument, spiral measuring balance, hand operated gate valve and electricity
Dynamic push-pull valve；Hmi connects plc, for man-machine interaction；Control instrument connects plc and spiral measuring balance, be inside provided with pid adjuster,
Wic (weigh indicate control, weight display controller) and wit (weigh indicate transmit, weight
Display transmitter), hand operated gate valve and electric gate valve connect spiral measuring balance and control instrument respectively.Wherein, spiral decrement
Scale includes Weighing control hopper, frequency converter and conveying worm；Weighing control hopper is provided with LOAD CELLS, for weighing
Control the actual raw material in material to be weighed, and raw material actual weight is sent to control instrument；Frequency converter connects control instrument
And conveying worm, for the rotating speed of the output adjustable screw conveyer according to control instrument, conveying worm is by Weighing control
Material in hopper transfers out, and makes raw material actual flow follow the tracks of raw material in real time and sets flow.
The job step of the present embodiment:
S1, user issue proportioning and the dispensing total amount parameter per hour of each batch compound according to demand by hmi
To plc.
Wherein, hmi is mainly used in user setup various parameters, can also operate and open/stop button, make dispensing control on hmi
System processed opens/stops.The startup of batching control system and stopping stop the inverse control mode opening using suitable.Start, stop, playing open and close
The instruction such as close to be realized by plc program software and control instrument firmware program, practical.Hmi can also carry out configuration, programming
Data manages, and can form required operation screen, monitor picture, control interface, alarm screen, real-time tendency curve, history
Trend curve and printing reports etc..
Proportioning that s2, plc issue according to hmi and dispensing total amount parameter calculate the setting flow of each raw material, and pass
Deliver to control instrument.
Wherein, hmi is connected with plc by Ethernet.
S3, spiral measuring balance are weighed to internal actual raw material, and raw material actual weight is sent to control instrument.
This step specifically includes: spiral measuring balance passes through to arrange LOAD CELLS to the actual raw material in Weighing control hopper
Weighed, and component signal sampling is carried out to the actual raw material weight value of LOAD CELLS, and the component signal of sampling is sent out
Deliver to control instrument.
The raw material actual weight that s4, control instrument return according to spiral measuring balance, is calculated often little by internal pid
When actual flow, and calculate the difference of the setting flow that actual flow and plc calculate, according to difference adjustable screw measuring balance
Feedstock transportation speed, realizes accurate dosing.
Wherein, this step specifically includes: (1) control instrument pass through internal pid ((proportional-integral derivative controller),
The component signal of the raw material actual weight according to collection, the change calculating component signal in per time instance is turned to instantaneous delivery,
It is transformed to actual flow hourly further according to instantaneous delivery.(2) calculate the difference of the setting flow that actual flow is calculated with plc
Value. the rotating speed of (3) conveying worm according to difference adjustable screw measuring balance, and then adjust feedstock transportation speed, make raw material real
Border flow is followed the tracks of raw material in real time and is set flow.Raw material actual weight is Real-time Collection, thus being calculated real-time reality
Flow, then according to actual flow and setting flow come real-time regulation delivery rate, makes actual flow meet exactly all the time and sets
Constant flow, thus realize accurate dosing.
The raw material actual weight that spiral measuring balance returns is entered by s5, control instrument with weight upper limit value and lower limit value set in advance
Row compares and differentiates, when exceeding upper limit value and lower limit value, then controls electric gate valve to close, stops feed, realize into weigh hopper
Interruption feed, when not less than upper limit value and lower limit value, then controls electric gate valve to open, continues feed.
Wherein, when electric gate valve opens feed in weigh hopper, plc passes through control instrument locking screw conveyer
Rotating speed is set-point, until electric gate valve shutdown signal occurs again.
S6, spiral measuring balance are fed according to the control output of control instrument.
S7, when hand operated gate valve is opened, be operated manually be fed.
Above disclosed be only a kind of preferred embodiment of the utility model and it is impossible to the utility model is limited with this
Interest field, the equivalent variations therefore made according to the utility model claim, still belong to the scope that the utility model is covered.
Claims (5)
1. a kind of carbide raw material accurate dosing control system it is characterised in that: include hmi, plc, control instrument, spiral decrement
Scale, hand operated gate valve and electric gate valve；Wherein: hmi connects plc, for man-machine interaction；Control instrument connects plc and spiral
Measuring balance, hand operated gate valve and electric gate valve connect spiral measuring balance and control instrument respectively.
2. carbide raw material accurate dosing control system according to claim 1 it is characterised in that: described spiral measuring balance bag
Include Weighing control hopper, frequency converter and conveying worm, wherein: described Weighing control hopper is provided with LOAD CELLS, described
LOAD CELLS connects to described control instrument, and described frequency converter connects control instrument and conveying worm.
3. carbide raw material accurate dosing control system according to claim 1 it is characterised in that: described hmi be provided with open/
Stop button, to control batching control system to open/stop.
4. carbide raw material accurate dosing control system according to claim 1 it is characterised in that: described hmi pass through ether
Net is connected with plc.
5. carbide raw material accurate dosing control system according to claim 1 it is characterised in that: set in described control instrument
There is pid adjuster.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620706663.XU CN205909922U (en) | 2016-07-06 | 2016-07-06 | Accurate batching control system of carbide raw materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620706663.XU CN205909922U (en) | 2016-07-06 | 2016-07-06 | Accurate batching control system of carbide raw materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205909922U true CN205909922U (en) | 2017-01-25 |
Family
ID=57804580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620706663.XU Expired - Fee Related CN205909922U (en) | 2016-07-06 | 2016-07-06 | Accurate batching control system of carbide raw materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205909922U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114123937A (en) * | 2021-10-22 | 2022-03-01 | 衢州元立金属制品有限公司 | Smooth conversion method for realizing manual and automatic PID adjustment |
| CN115159164A (en) * | 2022-06-23 | 2022-10-11 | 上海康恒环境股份有限公司 | Slaked lime conveying system and control method thereof |
-
2016
- 2016-07-06 CN CN201620706663.XU patent/CN205909922U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114123937A (en) * | 2021-10-22 | 2022-03-01 | 衢州元立金属制品有限公司 | Smooth conversion method for realizing manual and automatic PID adjustment |
| CN114123937B (en) * | 2021-10-22 | 2024-04-09 | 衢州元立金属制品有限公司 | Smooth conversion method for realizing manual and automatic PID adjustment |
| CN115159164A (en) * | 2022-06-23 | 2022-10-11 | 上海康恒环境股份有限公司 | Slaked lime conveying system and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20190102 Granted publication date: 20170125 |
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| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20220102 Granted publication date: 20170125 |
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| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170125 Termination date: 20180706 |
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| CF01 | Termination of patent right due to non-payment of annual fee |