CN107015523A - A kind of coal preparation plant's rubber conveyer automatic control system - Google Patents
A kind of coal preparation plant's rubber conveyer automatic control system Download PDFInfo
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- CN107015523A CN107015523A CN201710434958.5A CN201710434958A CN107015523A CN 107015523 A CN107015523 A CN 107015523A CN 201710434958 A CN201710434958 A CN 201710434958A CN 107015523 A CN107015523 A CN 107015523A
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- rubber conveyer
- coal
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- conveyer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Conveyors (AREA)
Abstract
The present invention relates to a kind of coal preparation plant's rubber conveyer automatic control system, including：The velocity sensor on rubber conveyer is arranged on, the real-time belt speed for obtaining rubber conveyer；PLC controls substation, and according to rubber conveyer in real time come coal amount, rubber conveyer is controlled with the optimal control condition of rubber conveyer；Monitoring host computer, the running status for real-time monitoring system；Ethernet communication module, the control instruction for receiving monitoring host computer, or the running status of system and parameter are uploaded to monitoring host computer.The present invention controls substation to be controlled respectively with the optimal control condition of rubber conveyer to 2 rubber conveyers by 2 PLC, and monitoring host computer can control the running status of simultaneously real-time monitoring system.The system overcomes rubber conveyer, and no matter load is how many with the shortcoming of full speed running, has reached energy-conservation and has reduced the unnecessary abrasion of rubber conveyer, has improved the production efficiency of coal preparation plant.
Description
Technical field
The invention belongs to rubber conveyer control field, and in particular to a kind of coal preparation plant's rubber conveyer is with automatically controlling
System.
Background technology
Due to the restriction of geological conditions and working condition, the production of colliery raw coal is often discontinuous, although in coal separation
The front-end configuration of factory has run coal bin, in order to ensure the continuity of raw coal washing process, so passing through feeder under storehouse by run coal bin
The conveying capacity being conveyed on rubber conveyer is change, and the output quantity of the cleaned coal (by cleaned coal rubber conveyer) of wash-off is also to become
Change, so result under the storehouse of coal preparation plant and cleaned coal accumulating rubber conveyer can not be usually realized under specified belt speed at full capacity
(filling rate is 100%) operates, and causes unnecessary waste of energy and equipment attrition, the efficiency of transportation system of influence coal preparation plant.
Therefore, realize that Raw Coal is inputted and cleaned coal exports the excellent of rubber conveyer used speed of service minimum with filling rate maximum
Change control, have highly important meaning for the production efficiency for improving enterprise.
The washing of raw coal is a continuous production process, and the input of the raw coal feeder under the storehouse of run coal bin is transported to storehouse
On lower rubber conveyer, due to the uncertainty of coal mining, in order to ensure the continuous of washing process, feeder coal-supplying amount it is big
It is small to be controlled according to the coal position (origin coal and the flow that produces coal are determined) of coal bunker, thus result under storehouse on rubber conveyer
Coal flow change, the coal flow being output to by washing system on cleaned coal rubber conveyer also changes.
Operated under usual storehouse with cleaned coal accumulating rubber conveyer with specified belt speed, it is right due to inputting the change of coal flow
Underloading or non-running status at full capacity are usually in for rubber conveyer, causes the waste of electric energy and equipment unnecessary
Abrasion.
The content of the invention
In order to solve existing coal preparation plant with being operated when rubber conveyer underloading or oepration at full load with specified belt speed, make
The problem of into waste of energy, the invention provides a kind of coal preparation plant's rubber conveyer automatic control system.The invention solves the problems that
Technical problem be achieved through the following technical solutions：
A kind of coal preparation plant's rubber conveyer automatic control system, including：
The velocity sensor on rubber conveyer is arranged on, the real-time belt speed for obtaining rubber conveyer；
PLC controls substation, according to rubber conveyer in real time come coal amount, with the optimal control condition of rubber conveyer to glue
Band conveyer is controlled；
Monitoring host computer, the running status for real-time monitoring system；
Ethernet communication module, the control instruction for receiving monitoring host computer, or by the running status and parameter of system
Reach monitoring host computer.
A kind of above-mentioned coal preparation plant's rubber conveyer automatic control system, the rubber conveyer is carried out by frequency converter
Driving, belted electronic balance is additionally provided with the rubber conveyer, the belted electronic balance is used to weigh by real-time from what is be in
Coal flow.
A kind of above-mentioned coal preparation plant's rubber conveyer automatic control system, the PLC controls substation includes：
Network Communication module is controlled, is that frequency converter sends operation instruction；
Switching value output module, for starting rubber conveyer；
Switching input module, the running status for reading rubber conveyer；
Analog input mModule, the real-time coal flow for reading belted electronic balance, or for reading speed sensor
Real-time belt speed data；
CPU module, for optimizing control to dealings conveyer according to optimal conditions.
A kind of above-mentioned coal preparation plant's rubber conveyer automatic control system, the rubber conveyer includes raw coal and conveys glue
Set respectively on band conveyer, cleaned coal accumulating rubber conveyer, the raw coal transportation rubber belt conveyer, cleaned coal accumulating rubber conveyer
There are velocity sensor and belted electronic balance；
The raw coal transportation rubber belt conveyer, cleaned coal accumulating rubber conveyer are entered by a set of automation control system respectively
Row optimal control for energy saving.
A kind of above-mentioned coal preparation plant's rubber conveyer automatic control system, the raw coal transportation rubber belt conveyer it is automatic
Data are carried out between networked control systems, the automation control system of the cleaned coal accumulating rubber conveyer by EPA to lead to
Letter；
Industrial ethernet switch is that 2 PLC control substations and the data-interface of monitoring host computer connection EPA to set
It is standby.
A kind of above-mentioned coal preparation plant's rubber conveyer automatic control system, the monitoring host computer also conveys subsystem to raw coal
System, the issue control instruction of cleaned coal output subsystem.
Beneficial effects of the present invention：
Rubber conveyer energy saving optimizing automatic control system of the present invention, controls substation to be conveyed respectively according to raw coal by 2 PLC
Carry out coal amount in real time with two rubber conveyers of cleaned coal accumulating, with the filling rate of rubber conveyer is maximum and optimization that speed is minimum
Control condition is controlled to 2 rubber conveyers, and monitoring host computer can carry out sequential control to raw coal conveying and washing system
And the running status of real-time monitoring system.It follows that instant invention overcomes existing rubber conveyer, no matter how much equal load is
With the shortcoming of full speed running, energy-conservation is reached and has reduced the unnecessary abrasion of rubber conveyer, improved the production effect of coal preparation plant
Rate.
The present invention is described in further details below with reference to drawings and Examples.
Brief description of the drawings
Fig. 1 is the theory diagram of the present invention.
Fig. 2 is coal flow loop control theory figure.
Embodiment
Reach technological means and effect that predetermined purpose is taken for the present invention is expanded on further, below in conjunction with accompanying drawing and reality
Embodiment, architectural feature and its effect of example to the present invention are applied, is described in detail as follows.
In order to solve existing coal preparation plant with being operated when rubber conveyer underloading or oepration at full load with specified belt speed, make
The problem of into waste of energy, a kind of coal preparation plant's rubber conveyer automatic control system as shown in Figure 1 is present embodiments provided,
The system is for Raw Coal conveying and two rubber conveyers of cleaned coal accumulating, according to optimal control for energy saving principle, difference root
The size for carrying out coal amount in real time according to them carries out optimal control for energy saving to it.
The system includes 2 rubber conveyers, 2 frequency converters, 2 belted electronic balances, 2 velocity sensors, 2 PLC
Substation, EPA and its interchanger and monitoring host computer etc. are controlled, wherein PLC control substations include CPU module, switching value
Input/output module, Analog input mModule, control Network Communication module and ethernet communication module etc..
2 rubber conveyers are respectively to be located under the storehouse below run coal bin rubber conveyer and positioned at washing system downstream
They are driven control by cleaned coal rubber conveyer by 2 frequency converters respectively, and the size and frequency converter of their running speeds are defeated
The size for going out electric voltage frequency is directly proportional.
2 belted electronic balances are installed under storehouse on rubber conveyer and cleaned coal rubber conveyer respectively, weigh pass through respectively
From the real-time coal flow being in.
2 PLC control substations receive the control instruction from monitoring host computer by ethernet communication module respectively, can be with
The running status of system and parameter are uploaded to monitoring host computer；According to the control instruction of system, substation is controlled by 1#PLC first
Control Network Communication module send operation instruction to 1# frequency converters, then by its switching value output module start storehouse under adhesive tape it is defeated
Machine is sent, the running status of rubber conveyer under storehouse is read by its switching input module, then passes through its Analog input mModule
The real-time coal flow of 1# belted electronic balances and the real-time belt speed data of 1# velocity sensors are read, and according to optimal control condition pair
Rubber conveyer optimizes control under storehouse；Then, monitoring host computer sends control to 2#PLC control substations by Ethernet and referred to
Make, then 2#PLC controls substation to control Network Communication module to send operation instruction to 2# frequency converters by it first, then by it
Switching value output module starts cleaned coal rubber conveyer and washing subsystem, and cleaned coal adhesive tape is read by its switching input module
The running status of conveyer, then the real-time coal flow and 2# speed that read 2# belted electronic balances by its Analog input mModule are passed
The real-time belt speed data of sensor, and control is optimized to cleaned coal rubber conveyer according to optimal control condition.
EPA is the ring optical networks dedicated for control inside coal preparation plant, between each control subsystem
Data exchange.
Ethernet switch is the data interface unit that 2 PLC control substations and monitoring host computer connect EPA, is led to
Row data communication can be entered between 2 rubber conveyer optimal control subsystems by crossing Ethernet and its interchanger monitoring host computer.
Monitoring host computer can give the subsystem issue control instruction such as raw coal conveying, raw coal washing and cleaned coal output, can also
Running status and parameter of subsystems etc. are shown in real time.
For Raw Coal conveying and two rubber conveyers of cleaned coal accumulating, can according to optimal control for energy saving principle,
Optimal control for energy saving is carried out to it come the size of coal amount in real time according to them respectively, so as to reach energy-conservation and reduce adhesive tape conveying
The purpose of the unnecessary abrasion of machine.
Control substations respectively under storehouse and the running speed of cleaned coal adhesive tape conveying machine carries out closed-loop control by two PLC,
The filling rate of rubber conveyer is set to reach maximum (100%), filling rate is measured by 2 belted electronic balances.
2 PLC control substations of the present embodiment, it can be communicated by Ethernet and monitoring host computer, that is, receive prison
Control the control command of main frame and upload the running status and parameter of optimal control for energy saving subsystem, can also be real according to control instruction
The automatic operating of existing coal preparation plant.
Monitoring host computer controls substation to issue subsystem operation instruction by Ethernet to 2 PLC, can also receive energy-conservation excellent
Change the running status and parameter of control subsystem, and shown in real time.
Match somebody with somebody respectively to rubber conveyer under the storehouse of run coal bin and for the drive motor of the rubber conveyer of cleaned coal accumulating
Frequency converter is put, the size of their running speeds and the size of frequency converter output voltage frequency are directly proportional.It is defeated by changing frequency converter
The running speed of rubber conveyer can be controlled by going out the frequency of voltage.
The tail of rubber conveyer and cleaned coal rubber conveyer installs belted electronic balance respectively under storehouse, passes through for weighing
Real-time coal flow at installing.Velocity sensor is installed respectively on rubber conveyer and cleaned coal rubber conveyer under storehouse, is used for
Detect the real-time belt speed of rubber conveyer.
2 PLC control substations can be communicated by Ethernet with monitoring host computer respectively, on the one hand can receive monitoring
The control instruction of main frame, on the other hand can be uploaded to monitoring host computer by the running status of system and parameter.2 PLC controls point
Standing can be communicated by Ethernet with monitoring host computer respectively, on the one hand can receive the control instruction of monitoring host computer, another
The running status of system and parameter can be uploaded to monitoring host computer by aspect.2 PLC control substations according to the control of monitoring host computer
Order and the washing flow startup or stopping rubber conveyer and raw coal washing subsystem of coal preparation plant.2 PLC control substations point
The real-time coal flow on respective rubber conveyer not received by Analog input mModule, according to optimal control condition with calculating
Method controls the running speed of rubber conveyer, realizes that its energy saving optimizing is operated.
2 PLC control substations and monitoring host computer access the work of the internal proprietary of coal preparation plant by Ethernet switch respectively
, can be between 2 rubber conveyer optimal control subsystems by Ethernet and its interchanger monitoring host computer on industrial Ethernet
Enter row data communication.Monitoring host computer can also can in real time show energy saving optimizing to 2 PLC control substation issue control instructions
Running status and parameter of control subsystem etc..
The rubber conveyer of coal preparation plant is dragged by ac motor, it is possible to use frequency converter is to motor, such as
The frequency that fruit changes frequency converter output voltage can just change the running speed of rubber conveyer, carry out the constant condition of coal flow
Under, the coal flow (filling rate) on rubber conveyer can just be changed by changing belt speed.For ac motor, ribbon conveyer
It is constant torque load, according to the dragging principle of motor, the power output of motor and its power supply under the conditions of constant torque load
Frequency is approximately directly proportional, i.e. P1/P2=f1/f2, therefore can be electronic by changing dragging when the load variations of ribbon conveyer
The frequency of electromechanical source changes the rotating speed of motor, to reach the purpose of energy-conservation, while can also reduce the abrasion of equipment and prolong
The service life of long equipment.Further, since the limitation of rubber conveyer structure and bandwidth, the precondition for reducing belt speed is can not
The spilling of material is caused, so the condition for reducing belt speed is to ensure that the filling rate of (or close to) rubber conveyer is (full for 100%
Load).
In order to realize the optimal control (belt speed control under full capacity) of rubber conveyer it is necessary to being stored up under storehouse with cleaned coal
The size of real-time coal flow and operation belt speed on fortune rubber conveyer is detected, electricity is installed on the adhesive tape of rubber conveyer
Sub- belt conveyer scale and velocity sensor can detect coal flow and operating belt speed thereon in real time, and substation is controlled according to adhesive tape by PLC
The coal flow that comes in real time of conveyer determines its given belt speed, then by controlling the frequency shift belt speed of frequency converter output voltage,
Belt speed closed-loop control is constituted, the optimal control of rubber conveyer can be thus realized.
It may be noted that rubber conveyer is to realize fortune using driving the frictional force between roller and adhesive tape to overcome running resistance
Turn, its running resistance is
FU=FUK+AqG (1)
F in formulaUKFor the unloaded resistance of rubber conveyer, A is its structural coefficient, qGFor every meter on adhesive tape of quality of material.
After the structure and installation site of rubber conveyer are determined, FUKIt is definite value with A.
Due to the influence of the factor of production, qGIt is the amount of a change, its excursion is 0~qGN(qGNFor every meter on adhesive tape
The nominal-mass of material), then the filling rate of rubber conveyer may be defined as
Then filling rate γ excursion is 0~100%, and formula (2) is substituted into formula (1), obtained
FU=FUK+Kγ (3)
K=Aq in formulaGN, it is a constant coefficient for specific rubber conveyer.As can be seen here, except zero load
Outside resistance, the running resistance of rubber conveyer and the filling rate of rubber conveyer are directly proportional.
According to motor run principle, when rubber conveyer travels at the uniform speed, the power needed for driving roller is
PGT=FUv (4)
V is the operating belt speed of rubber conveyer in formula.Bring formula (3) into formula (4), then
PGT=(FUK+ K γ) v=PK+PWL (5)
P in formulaK=FUKV is no-load power (driving power needed for overcoming unloaded resistance), PWL=K γ v are load power
(overcoming the driving power needed for material resistance).
The roller of rubber conveyer is driven by motor, and the power output of motor is equal to rubber conveyer drive
Power needed for dynamic roller, i.e.,
PQD=PGT=FUV=FUKV+K γ v=PK+PWL (6)
In order to realize Energy Saving Control, under conditions of rubber conveyer load is certain, make output power of motor minimum
Object function is
minPQD={ FUvmin}={ FUKvmin+Kγvmin} (7)
In order that rubber conveyer reaches (γ=100%) at full capacity, then the power that motor is consumed under the conditions of being somebody's turn to do is
η in formulaDFor the efficiency of motor.The formula shows, is equal in the filling rate of rubber conveyer under 1 constraints,
Make its running speed minimum, then drive motor consumes electric energy just minimum.It is possible thereby to realize that the energy-conservation of rubber conveyer is excellent
Change control.
In order to realize the optimal control for energy saving of rubber conveyer, first have to according to rubber conveyer upstream equipment (or system)
Carry out coal amount, by material balance relationship, i.e.,
G1=qG1v1=GvN=qGvN=γ qGNvN (9)
Q in formulaG1For the unit length quality of material on upstream equipment, v1For the flow velocity of material, then adhesive tape is obtained by formula (9) defeated
The filling rate for sending machine is
If making rubber conveyer reach at full capacity, i.e., (or the energy-saving run of rubber conveyer gives band for minimum operating belt speed
Speed) be
The coal stream of coal preparation plant is a continuous dynamic process, and raw coal is from input, washing and cleaned coal output by 3 rings
Section, can realize the coordination control of links by monitoring host computer, while it is defeated to monitor adhesive tape in real time by monitoring host computer
Send the running status of machine, it is ensured that the reliability of production process.
In Fig. 2, controller uses pid algorithm, according to given belt speed (minimum belt speed) by frequency converter to rubber conveyer
Belt speed carry out closed-loop control, realize optimization and energy saving.The control principle is not only suitable for rubber conveyer under storehouse and is also applied for
Cleaned coal accumulating rubber conveyer.
The present invention control process be：Sent first by operating personnel in control main frame under system enabled instruction and storehouse to
Coal machine is default to give coal speed v1(understand coal-supplying amount qG1), when 1#PLC control substations are connected to, to open feeder under car order and storehouse pre-
After setting parameter, the optimization and energy saving speed of rubber conveyer under export can be calculated by formula (11), then in this given speed
Down by rubber conveyer under the control Network Communication module of 1#PLC control substations, 1# frequency converters startup storehouse, delay etc. is to be launched complete
Finish, loop control theory of the controller in 1#PLC control substations according to Fig. 2 carries out the closed-loop automatic control of belt speed, then
The switching value output module of substation is controlled to open feeder under storehouse by 1#PLC, raw coal just enters via rubber conveyer under storehouse to be washed
Subsystem is selected to carry out into washing；While rubber conveyer under starting storehouse, its output switch parameter mould is passed through by 2#PLC control substations
Block sends enabled instruction to washing subsystem, is entering to wash and being ready for raw coal.Through entering to wash the impurity in subsystem raw coal and
Coal slime is removed, and the cleaned coal of output will enter cleaned coal rubber conveyer.After raw coal enters and washed, by 2#PLC control substation according to
Formula (11) calculates the optimization and energy saving speed of cleaned coal rubber conveyer, by one section of delay (raw coal enters to wash cleaned coal output),
Then Network Communication module, 2# frequency converters is controlled to start the controller root in cleaned coal rubber conveyer, 2#PLC control substations by it
The closed-loop automatic control of its belt speed is carried out according to the loop control theory shown in Fig. 2.
1# the and 2# velocity sensors and the live signal point of belted electronic balance installed under storehouse and on cleaned coal rubber conveyer
Do not obtained by 1# and 2# Analog input mModule, its rate signal is used to be used as the belt speed feedback signal in Fig. 2, its coal stream
Amount signal appraises and decides signal as sealing-tape machine input coal flow, for checking the belt speed specified rate calculated by formula (11).
After system operation, the respective switching input module point passed through under storehouse with the running status of cleaned coal rubber conveyer
Supplementary biography is sent in 1# and 2#PLC control substations, running status and parameter (output voltage and frequency, the operating current of 2 frequency converters
Deng) be respectively transmitted to by controlling Network Communication module in 1# and 2#PLC substations, then 2 PLC control substations by the operation of system
State is transmitted to monitoring host computer with parameter by ethernet communication module and interchanger, and monitoring host computer shows rubber conveyer in real time
The running status and operational factor of energy saving optimizing automatic control system.
After monitoring host computer sends parking order, 1#PLC controls substation to be controlled by its switching value output module, feeder
Module stops feeder under storehouse, after delay (coal under storehouse on rubber conveyer will be unsnatched), is passed through by 1#PLC control substations
It controls Network Communication module to stop rubber conveyer under 1# frequency converters and storehouse；Confirm cleaned coal by delay (raw coal washing time) again
Export and finished, controlled substation to send cutoff command to washing subsystem by its switching value output module by 2#PLC；Pass through again
Delay (coal on cleaned coal rubber conveyer will be unsnatched) is crossed, controls substation to control Network Communication module to stop 2# by it by 2#PLC
Frequency converter and cleaned coal rubber conveyer, the whole system of such coal preparation plant are just out of service.In 1# and 2#PLC control substations
Switching input module can confirm that whether 2 rubber conveyers indeed stop.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to assert
The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of not departing from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention's
Protection domain.
Claims (6)
1. a kind of coal preparation plant's rubber conveyer automatic control system, it is characterised in that including：
The velocity sensor on rubber conveyer is arranged on, the real-time belt speed for obtaining rubber conveyer；
PLC controls substation, defeated to adhesive tape with the optimal control condition of rubber conveyer according to rubber conveyer in real time come coal amount
Machine is sent to be controlled；
Monitoring host computer, the running status for real-time monitoring system；
Ethernet communication module, the control instruction for receiving monitoring host computer, or the running status of system and parameter are uploaded to
Monitoring host computer.
2. coal preparation plant's rubber conveyer automatic control system as claimed in claim 1, it is characterised in that the adhesive tape conveying
Machine is driven by frequency converter, and belted electronic balance is additionally provided with the rubber conveyer, and the belted electronic balance is used to weigh
By the real-time coal flow being in certainly.
3. coal preparation plant's rubber conveyer automatic control system as claimed in claim 2, it is characterised in that the PLC controls
Substation includes：
Network Communication module is controlled, is that frequency converter sends operation instruction；
Switching value output module, for starting rubber conveyer；
Switching input module, the running status for reading rubber conveyer；
Analog input mModule, the real-time coal flow for reading belted electronic balance, or for the real-time of reading speed sensor
Belt speed data；
CPU module, for optimizing control to dealings conveyer according to optimal conditions.
4. coal preparation plant's rubber conveyer automatic control system as described in claim any one of 1-3, it is characterised in that described
Rubber conveyer includes raw coal transportation rubber belt conveyer, cleaned coal accumulating rubber conveyer, the raw coal transportation rubber belt conveyer, essence
Velocity sensor and belted electronic balance are respectively equipped with coal accumulating rubber conveyer；
The raw coal transportation rubber belt conveyer, cleaned coal accumulating rubber conveyer are saved by a set of automation control system respectively
Can optimal control.
5. coal preparation plant's rubber conveyer automatic control system as claimed in claim 4, it is characterised in that the raw coal conveying
Pass through industry between the automation control system of rubber conveyer, the automation control system of the cleaned coal accumulating rubber conveyer
Ethernet enters row data communication；
Industrial ethernet switch is the data interface unit that 2 PLC control substations and monitoring host computer connect EPA.
6. coal preparation plant's rubber conveyer automatic control system as claimed in claim 5, it is characterised in that the monitoring host computer
Also to raw coal transport subsystem, the issue control instruction of cleaned coal output subsystem.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710434958.5A CN107015523A (en) | 2017-06-10 | 2017-06-10 | A kind of coal preparation plant's rubber conveyer automatic control system |
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| CN201710434958.5A CN107015523A (en) | 2017-06-10 | 2017-06-10 | A kind of coal preparation plant's rubber conveyer automatic control system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107539750A (en) * | 2017-08-15 | 2018-01-05 | 贵州省动能煤炭技术发展服务有限公司 | Ribbon conveyer energy-saving control device |
| CN108718163A (en) * | 2018-05-22 | 2018-10-30 | 太原理工大学 | A kind of permanent-magnetic variable-frequency driving drag conveyor energy-saving control device |
| CN113884167A (en) * | 2021-09-15 | 2022-01-04 | 湖南库特智能科技有限公司 | Method and system for measuring working capacity of movable crusher |
| CN113895910A (en) * | 2021-10-27 | 2022-01-07 | 西安科技大学 | Optimized control method for multi-stage tandem type rubber belt conveyor transportation system |
-
2017
- 2017-06-10 CN CN201710434958.5A patent/CN107015523A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107539750A (en) * | 2017-08-15 | 2018-01-05 | 贵州省动能煤炭技术发展服务有限公司 | Ribbon conveyer energy-saving control device |
| CN108718163A (en) * | 2018-05-22 | 2018-10-30 | 太原理工大学 | A kind of permanent-magnetic variable-frequency driving drag conveyor energy-saving control device |
| CN108718163B (en) * | 2018-05-22 | 2021-12-21 | 太原理工大学 | Energy-saving control device of permanent magnet variable frequency driving scraper conveyor |
| CN113884167A (en) * | 2021-09-15 | 2022-01-04 | 湖南库特智能科技有限公司 | Method and system for measuring working capacity of movable crusher |
| CN113884167B (en) * | 2021-09-15 | 2024-03-01 | 湖南库特智能科技有限公司 | Working capacity metering method and system for mobile crusher |
| CN113895910A (en) * | 2021-10-27 | 2022-01-07 | 西安科技大学 | Optimized control method for multi-stage tandem type rubber belt conveyor transportation system |
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Application publication date: 20170804 |