A kind of grease automatic adding device based on PLC control system
Technical field:
The invention belongs to material transfer equipment technical fields, and in particular to a kind of grease based on PLC control system is automatic
PLC control system is replaced conventional relay control system by adding set, is developed a kind of precision type, procedure and can be chased after
The grease addition equipment traced back.
Background technology:
Grease is a kind of important feedstuff, can promote fat-soluble A, the absorption of D, Z, K, utilization and transhipment,
It contains the necessary unsaturated fatty acid of animal, can promote growth of animal, improves productivity, improves the palatability of feed, improves
Feed intake, the digestion convenient for nutriment.In addition, in process, grease keeps feed granules surface smooth, the adsorptivity of grease
The adverse effect of electrostatic charge can be eliminated, the dust pollution to environment is reduced.What is more important grease can value be carbon hydrate
2.25% times of object can play the transformation efficiency that coordinative role improves feed with other nutritional ingredients.Therefore, in feed processing process
In, grease is reasonably and accurately added most important to the quality of feed product.The grease adding method of early stage mainly has following
Three kinds:(1) it weighs manually;(2) other metering methods are used to infer liquid weight, such as flowmeter;(3) simple weighing device.Side
Method (1) needs artificial, low production efficiency;Method (2) is influenced by extraneous factors such as temperature, is weighed inaccurate;Method (3) uses
Weighing equipment is unstable in the process, and the vibration influence in by machine running process, weighing error is big, and mechanization degree is low.With
The raising required feeding quality, how the raising of Mechanization Level during feed processing, accurately and timely adds grease
Be added in mixing machine, ensure grease add-on system and feed processing system synchronism, search grease addition basic data and
Fast debugging operating process is more and more important.Existing addition manner cannot meet factory feeding quality is strictly controlled,
Refine the demand of cost management, the control of precise treatment production process.In this context, precision type, procedural style, can trace and reliably
Stable addition equipment becomes a kind of inevitable demand.
Programmable logic controller (PLC) (PLC) is used for its internally stored program using a kind of programmable memory, executes
The user oriented instruction such as logical operation, sequential control, timing, counting and arithmetical operation, and by number or analog pattern input/
The various types of machineries of output control or production process.In recent years, PLC control system is compact-sized with its, and reliability is high, function
By force, the advantages such as speed is fast and price is low are played in industrial automation more and more importantly to be acted on, and it is particularly suitable for essence
Close formula, procedure, system process is complicated, and technological parameter is numerous, cumbersome, and industry of the input/output based on switching value is certainly
Dynamic control device.
Invention content:
It is an object of the invention to overcome disadvantage of the existing technology, seek a kind of grease based on PLC control system
Automatic adding device, it is low to solve accuracy in existing grease day adding procedure, low production efficiency, labor intensive, and regulation process is tired
The problem of difficulty, adding procedure data can not trace.
To achieve the goals above, a kind of grease automatic adding device based on PLC control system of the present invention
Agent structure, including host computer, PLC control system, warning device, database, the first liquid level sensor, temperature sensor, title
Quantity sensor, pressure sensor, mixing machine, oil well pump, trapped fuel case, heating unit, the first valve, claims the second liquid level sensor
Batch box, the second valve, buffering bucket and addition pump, host computer, the first valve, the second valve, the first liquid level sensor, temperature sensing
Device, weighing sensor, the second liquid level sensor and pressure sensor are connect with PLC control system power information respectively, warning device
It is connect with upper Measurement And Control of The Jet Flotation Column, the first liquid level sensor and temperature sensor are arranged in trapped fuel case, and the second liquid level sensor is set
It sets in buffering bucket, pressure sensor is arranged on the pipeline between addition pump and mixing machine;Weighing sensor takes three solid points
Determine suspension type to be fixed on scale hooper, along the sequentially connected oil well pump of pipeline, trapped fuel case, the first valve, scale hooper, the second valve
Door, buffering bucket, addition pump and mixing machine combination constitute grease and add equipment.
Liquid is set in host computer and adds weight, number and drop parameter, after grease adds equipment reception instruction, by
PLC control system controls oil well pump and grease is pumped into trapped fuel case, and the first liquid level sensor feeds back liquid level signal, reaches setting liquid level
After value, temperature sensor feedback grease temperature signal, if temperature is less than set temperature, heating unit heats it, reaches
After set temperature, the first valve opening is controlled, grease is sent to scale hooper, and weighing sensor feeds back grease weight, waits for that grease reaches
Setting addition weight, closes the first valve, opens the second valve, and grease reaches buffering bucket, the second liquid level sensor feedback buffering
Grease liquid level in bucket closes the second valve when reaching setting liquid level;Host computer receives needs and adds grease instruction into mixing machine
When, grease is pumped into mixing machine by addition pump;Host computer 1 is connect with feed preparation power information, makes to add by PLC control system
Add process action and Feed Manufacturing close look at the swing, ensures that the addition of every batch of feed is accurate.After the completion of grease addition, weighing instrument
This batch weighing data is uploaded into host computer, this batch weight amount is recorded in Feed Manufacturing database by host computer, in order to
Data query.
Compared with prior art, the present invention PLC control technology is applied in grease adding apparatus, system is controlled by PLC
System is automatically performed the control of the technical parameters such as temperature in adding procedure, liquid level, weight and pressure, and additive amount is according to actual needs
Adjustment in time, detection, recording process data, improve the accuracy and accuracy of grease addition, high degree of automation in real time.
Description of the drawings:
Fig. 1 is the grease automatic adding device structural principle schematic block diagram of the present invention based on PLC control system.
Specific implementation mode:
Below by the drawings and specific embodiments, the present invention will be further described:
Embodiment 1:
A kind of agent structure for grease automatic adding device based on PLC control system that the present embodiment is related to, including it is upper
Position machine 1, PLC control system 2, warning device 3, database 4, the first liquid level sensor 5, temperature sensor 6, weighing sensor 7,
Second liquid level sensor 8, pressure sensor 9, mixing machine 10, oil well pump 11, trapped fuel case 12, heating unit 13, the first valve 14,
Scale hooper 15, the second valve 16, buffering bucket 17 and addition pump 18, host computer 1, the first valve 14, the second valve 16, the first liquid level
Sensor 5, temperature sensor 6, weighing sensor 7, the second liquid level sensor 8 and pressure sensor 9 respectively with PLC control system
2 power information connect, and warning device 3 is connect with 1 power information of host computer, and the first liquid level sensor 5 and the setting of temperature sensor 6 are being deposited
In fuel tank 12, the second liquid level sensor 8 is arranged in buffering bucket 17, and the setting of pressure sensor 9 is in addition pump 18 and mixing machine 19
Between pipeline on;Weighing sensor 7 takes three-point mount suspension type to be fixed on scale hooper 15, further increases the standard of weighing
True property;Along the sequentially connected oil well pump 11 of pipeline, trapped fuel case 12, the first valve 1, scale hooper 15, the second valve 16, buffering bucket
17, addition pump 18 and the combination of mixing machine 10 constitute grease and add equipment.
Liquid is set in host computer 1 and adds weight, number and drop parameter, after grease adds equipment reception instruction, by
PLC control system 2 controls oil well pump 11 and grease is pumped into trapped fuel case 12, and the first liquid level sensor 5 feeds back liquid level signal, reaches and set
After determining level value, temperature sensor 6 feeds back grease temperature signal, if temperature is less than set temperature, heating unit 13 carries out it
Heating, after reaching set temperature, the first valve 14 of control is opened, and grease is sent to scale hooper 15, and weighing sensor 7 feeds back grease weight
It measures, waits for that grease reaches and set addition weight, the first valve 14 of closing, the second valve 16 of unlatching, grease arrival buffering bucket 17, second
Liquid level sensor 8 feeds back grease liquid level in buffering bucket, when reaching setting liquid level, closes the second valve 16;Host computer receives needs
When adding grease instruction into mixing machine 10, grease is pumped into mixing machine 10 by addition pump 18;Host computer 1 and feed preparation electricity
Information connects, and makes adding procedure action and Feed Manufacturing close look at the swing by PLC control system, ensures the addition of every batch of feed
Accurately.After the completion of grease addition, this batch weighing data is uploaded to host computer 1 by weighing instrument, by host computer 1 by this batch weight amount
It is recorded in Feed Manufacturing database 4, in order to data query.