CN207330376U - Furnace of calcium carbide uses the control system of blowing oxygen - Google Patents
Furnace of calcium carbide uses the control system of blowing oxygen Download PDFInfo
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- CN207330376U CN207330376U CN201720779754.0U CN201720779754U CN207330376U CN 207330376 U CN207330376 U CN 207330376U CN 201720779754 U CN201720779754 U CN 201720779754U CN 207330376 U CN207330376 U CN 207330376U
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Abstract
The utility model proposes the control system that a kind of furnace of calcium carbide uses blowing oxygen, including：Detection device, for detecting the current state of furnace of calcium carbide；Executing agency, for being controlled to furnace of calcium carbide using blowing oxygen；Controller, controller are connected with detection device and executing agency respectively, and controller controls executing agency to perform corresponding actions after starting to perform the oxygen spray oxygen operation of furnace of calcium carbide according to current state, to complete blowing oxygen work.The system can realize furnace of calcium carbide automatically controlling using blowing oxygen system, effectively reduce the production cost of calcium carbide, and improve energy structure, possess the characteristics of stablizing, is safe efficient, improve automation and the reliability of system, simple easily to realize.
Description
Technical field
Calcium carbide technical field of smelting is the utility model is related to, more particularly to a kind of furnace of calcium carbide uses the control system of blowing oxygen
System.
Background technology
In correlation technique, the aerobic hot method of production method and electrothermal way of calcium carbide are general more using electrothermal way production calcium carbide, main
Wanting production process is：First meeting the lime of calcium carbide production requirement after broken, screening and carbon raw material (coke, anthracite
Or petroleum coke) dispensing is carried out according to the specified ratio, feed through converying feeding tube to furnace of calcium carbide, next is inserted electrodes into furnace of calcium carbide
It is powered, furnace charge is heated to 1900-2200 DEG C by heat caused by the resistance thermal response of electrode arc pad and furnace charge, and furnace charge is in calcium carbide
Chemical reaction generation calcium carbide occurs in stove, after finally cooling is broken, obtains finished product calcium carbide.
It should be noted that calcium carbide smelting furnace blowing oxygen is the crucial skill for significantly alterring calcium carbide smelting furnace energy structure
Art, it can reduce the production cost of calcium carbide.Specifically, blowing oxygen technique can improve regional area around coke oxygen it is dense
Degree, improves mass transport process, realizes that oxygen coal directly burns, so as to effectively improve the combustion rate of coke.However, as blowing oxygen work
The key technology of skill, its control system will not only meet normal technique productions needs, also possess protection oxygen coal spray gun and electricity
The function of stone smelting furnace safety in production, therefore correlation technique has much room for improvement.
Utility model content
The utility model is intended to solve at least some of the technical problems in related technologies.
For this reason, the purpose of this utility model is that propose that a kind of furnace of calcium carbide uses the control system of blowing oxygen, the system
It can realize furnace of calcium carbide automatically controlling using blowing oxygen system, it is simple easily to realize.
To reach above-mentioned purpose, the utility model proposes the control system that a kind of furnace of calcium carbide uses blowing oxygen, including：
Detection device, for detecting the current state of furnace of calcium carbide；Executing agency, for being controlled to the furnace of calcium carbide using blowing oxygen
System；Controller, the controller are connected with the detection device and the executing agency respectively, and the controller is starting to perform
After the oxygen spray oxygen operation of furnace of calcium carbide, the executing agency is controlled to perform corresponding actions according to the current state, to complete oxygen
Work is blown in gas blowout.
The furnace of calcium carbide of the utility model uses the control system of blowing oxygen, is grasped in the oxygen spray oxygen for starting to perform furnace of calcium carbide
After work, control executing agency to perform corresponding actions according to current state, realize automatic control of the furnace of calcium carbide using blowing oxygen system
System, effectively reduces the production cost of calcium carbide, and improves energy structure, possesses the characteristics of stablizing, is safe efficient, improves system
Automation and reliability, it is simple easily to realize.
Alternatively, the current state includes oxygen rifle position, return water temperature, inflow temperature, flue-gas temperature, cooling current
One or more after amount, oxygen flow, nitrogen pressure, valve before oxygen pressure and valve in oxygen pressure.
Further, the detection device after pressure transmitter, oxygen valve before oxygen flow transmitter, oxygen valve including pressing
Power transmitter, nitrogen pressure transmitter, inflow temperature transmitter, return water temperature transmitter, cooling water flow transmitter, oxygen rifle position
Sensor and flue-gas temperature sensor are put, wherein, pressure transmitter and described before the oxygen flow transmitter, the oxygen valve
Pressure transmitter is arranged on oxygen channel after oxygen valve, and the nitrogen pressure transmitter is arranged on nitrogen pipeline, described
Inflow temperature transmitter, the return water temperature transmitter and the cooling water flow transmitter are arranged at oxygen gun cooling water pipeline
On, the change in location of the oxygen rifle position sensor detection oxygen rifle, and the flue-gas temperature sensor are arranged on flue
On.
Further, the executing agency include oxygen cutting valve, nitrogen stop valve, oxygen regulating valve, water inlet stop valve,
Backwater stop valve, emergency diffusion valve and lifting motor, wherein, the oxygen cutting valve, the oxygen regulating valve, described promptly put
Scattered valve is arranged on oxygen channel, and the nitrogen stop valve is arranged on nitrogen pipeline, and the water inlet stop valve, described
Backwater stop valve is arranged on oxygen gun cooling water pipeline, and the lifting motor passes through hoisting oxygen rifle；Wherein, the oxygen
Gas stop valve includes the first oxygen cutting valve and the second oxygen cutting valve, pressure transmitter, first oxygen before the oxygen valve
Gas stop valve, the oxygen flow transmitter, the oxygen regulating valve, the emergency diffusion valve, the second oxygen cutting valve
It is arranged at pressure transmitter after the oxygen valve according to gas flow in the oxygen channel on the oxygen channel, it is described urgent
The oxygen connected with the oxygen channel that diffusion valve is arranged between the oxygen regulating valve, the second oxygen cutting valve is tight
Suddenly diffuse on branch, the nitrogen pipeline includes nitrogen header pipe road and its first nitrogen branch pipe(tube) of lateral and the second nitrogen
Branch pipe(tube), the first nitrogen branch pipe(tube) is connected to the oxygen regulating valve and the oxygen emergency diffuses oxygen between branch
On pipeline, the second nitrogen branch pipe(tube) is connected to after the second oxygen cutting valve and the oxygen valve between pressure transmitter
Oxygen channel on, and the nitrogen stop valve includes the first nitrogen stop valve and the second nitrogen stop valve, first nitrogen
Gas stop valve is arranged at the first nitrogen branch pipe(tube), and the second nitrogen stop valve is arranged at the second nitrogen branch pipe(tube),
To control the nitrogen pipeline and the on and off between the oxygen channel, the inflow temperature transmitter, the water inlet
Stop valve, the backwater stop valve, return water temperature transmitter and cooling water flow transmitter are according in the oxygen gun cooling water pipeline
Liquid flow direction is arranged on the oxygen gun cooling water pipeline.
Further, before the oxygen spray oxygen operation is performed, the second oxygen cutting valve, nitrogen stop valve are closed
With emergency diffusion valve, and the first oxygen cutting valve, the water inlet stop valve and backwater stop valve are opened；Starting to hold
The row oxygen spray oxygen operation, and the second oxygen cutting valve is opened in the oxygen rifle position positioned at when opening oxygen point, and in institute
Oxygen rifle position is stated positioned at when closing oxygen point, the second oxygen cutting valve is closed, stops spray oxygen；It is described when there is emergency
Lifting motor promptly carries rifle, and closes the oxygen cutting valve and the oxygen regulating valve, and opens the nitrogen stop valve
With the emergency diffusion valve, and when being in limes superiors point in the oxygen rifle position, close the water inlet stop valve and backwater and cut
Disconnected valve.
Further, oxygen spray oxygen operation includes oxygen rifle to decline process, oxygen lance spraying oxygen process and oxygen rifle automatically automatic
Lifting process, wherein, during the oxygen rifle declines automatically, when the oxygen rifle position drop to it is described open oxygen point when, it is described
Second oxygen cutting valve is opened, and starts to spray oxygen operation, and when the oxygen rifle position drops to halt, oxygen rifle declines and stops automatically
Only；During the oxygen lance spraying oxygen, when the oxygen rifle position is below the pass oxygen point, pass through the oxygen regulating valve tune
The specified rate of oxygen is saved, to reach optimal burning condition；During the oxygen rifle automatic lifting, when the oxygen rifle position carries
When being raised to the pass oxygen point, the second oxygen cutting valve is closed, and stops spray oxygen operation, and the oxygen rifle continuously rises to wait
During point, oxygen rifle lifting is automatically stopped.
Further, the oxygen spray oxygen operation further includes emergency process, and the controller control, which performs, promptly to be carried
Rifle, closes the first oxygen cutting valve, the second oxygen cutting valve and the oxygen regulating valve, opens first nitrogen
Stop valve, the second nitrogen stop valve and the emergency diffusion valve, and after oxygen rifle lifting to the limes superiors point,
Close the water inlet stop valve and the backwater stop valve.
Further, further include：The human-computer interaction module being connected with the controller, to receive the control instruction of user.
Alternatively, the human-computer interaction module is human interface device HIMI.
The aspect and advantage that the utility model adds will be set forth in part in the description, partly by from following description
In become obvious, or recognized by the practice of the utility model.
Brief description of the drawings
The above-mentioned and/or additional aspect of the utility model and advantage from the following description of the accompanying drawings of embodiments will
Become obvious and be readily appreciated that, wherein：
Fig. 1 is the structure diagram using the control system of blowing oxygen according to the furnace of calcium carbide of the utility model embodiment；
Fig. 2 is the operation principle using the control system of blowing oxygen according to the furnace of calcium carbide of the utility model one embodiment
Schematic diagram；
Fig. 3 is the structure using the control system of blowing oxygen according to the furnace of calcium carbide of one specific embodiment of the utility model
Schematic diagram；
Fig. 4 is the flow chart using the control method of blowing oxygen according to the furnace of calcium carbide of the utility model embodiment.
Embodiment
The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is same or like element.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model
Limitation.
The furnace of calcium carbide for describing to be proposed according to the utility model embodiment with reference to the accompanying drawings uses the control system of blowing oxygen
System and method, the furnace of calcium carbide for describing to be proposed according to the utility model embodiment first with reference to the accompanying drawings use the control of blowing oxygen
System.
Fig. 1 is that the furnace of calcium carbide of the utility model embodiment uses the structure diagram of the control system of blowing oxygen.
As shown in Figure 1, the furnace of calcium carbide is included using the control system 10 of blowing oxygen：Detection device 100, executing agency
200 and controller 300.
Wherein, detection device 100 is used for the current state for detecting furnace of calcium carbide.Executing agency 200 is used to use furnace of calcium carbide
Blowing oxygen is controlled.Controller 300 is connected with detection device 100 and executing agency 200 respectively, and controller 300 is starting
After the oxygen spray oxygen operation for performing furnace of calcium carbide, executing agency 200 is controlled to perform corresponding actions according to current state, to complete oxygen
It is blown work.The system 10 of the utility model embodiment can realize furnace of calcium carbide automatically controlling using blowing oxygen system, have
Effect reduces the production cost of calcium carbide, and improves energy structure, possesses the characteristics of stablizing, is safe efficient, improves the automatic of system
Change and reliability are simple easily to realize.
Further, in one embodiment of the utility model, the system 10 of the utility model embodiment further includes：People
Machine interactive module.Wherein, human-computer interaction module is connected with controller 300, to receive the control instruction of user.
Alternatively, in one embodiment of the utility model, as shown in Fig. 2, human-computer interaction module can be human-machine interface
Jaws equipment HIMI, controller 300 can be PLC (Programmable Logic Controller, programmable logic controller (PLC))
System.
It is understood that the system 10 of the utility model embodiment can be divided into three parts：First, master system is
HMI (human interface device)；2nd, PLC system, including：Power module, CPU (Central Processing Unit, centre
Manage device) module, digital signal input module, digital signal output modules, analog signals input module, analog signals output
Module etc., to reduce redundancy, is not described in detail herein；3rd, field instrument and executing agency, including：Oxygen cutting valve, nitrogen
Stop valve, oxygen regulating valve, water inlet stop valve, backwater stop valve, emergency diffusion valve, lifting motor, oxygen rifle position sensor, it is cold
But after water water inlet return water temperature, flue-gas temperature, cooling water flow, oxygen flow, nitrogen pressure, oxygen upstream pressure and oxygen valve
Pressure etc., is further explained below.
Wherein, in one embodiment of the utility model, as shown in Fig. 2, current state includes oxygen rifle position, backwater temperature
Oxygen pressure before oxygen pressure and valve after degree, inflow temperature, flue-gas temperature, cooling water flow, oxygen flow, nitrogen pressure, valve
In one or more.
Further, in one embodiment of the utility model, detection device 100 includes oxygen flow transmitter 1, oxygen
Pressure transmitter 3, nitrogen pressure transmitter 4, inflow temperature transmitter 5, backwater temperature after pressure transmitter 2, oxygen valve before air valve
Transmitter 6, cooling water flow transmitter 7, oxygen rifle position sensor and flue-gas temperature sensor 8 are spent, wherein, oxygen flow pick-up
Pressure transmitter 3 is arranged on oxygen channel after pressure transmitter 2 and oxygen valve before device 1, oxygen valve, nitrogen pressure transmitter
4 are arranged on nitrogen pipeline, and inflow temperature transmitter 5, return water temperature transmitter 6 and cooling water flow transmitter 7 are arranged at
On oxygen gun cooling water pipeline, oxygen rifle position sensor detects the change in location of oxygen rifle, and flue-gas temperature sensor 8 is arranged on cigarette
In feed channel.
Further, in one embodiment of the utility model, as shown in figure 3, executing agency include oxygen cutting valve,
Nitrogen stop valve, oxygen regulating valve 11, water inlet stop valve 12, backwater stop valve 13, emergency diffusion valve 14 and lifting motor 15, its
In, oxygen cutting valve, oxygen regulating valve 11, emergency diffusion valve 14 are arranged on oxygen channel, and nitrogen stop valve is arranged on nitrogen
In feed channel, and stop valve 12 of intaking, backwater stop valve 13 are arranged on oxygen gun cooling water pipeline, and lifting motor 15 is logical
Cross hoisting oxygen rifle.
Wherein, oxygen cutting valve includes the first oxygen cutting valve 91 and the second oxygen cutting valve 92, and oxygen upstream pressure becomes
Send device 2, the first oxygen cutting valve 91, oxygen flow transmitter 1, oxygen regulating valve 11, emergency diffusion valve 14, the second oxygen cutting
Pressure transmitter 3 is arranged on oxygen channel according to gas flow in oxygen channel after valve 92 and oxygen valve, and emergency diffusion valve 14 is set
The oxygen emergency connected with oxygen channel being placed between oxygen regulating valve 11, the second oxygen cutting valve 92 is diffused on branch, nitrogen
Feed channel includes the first nitrogen branch pipe(tube) and the second nitrogen branch pipe(tube) of nitrogen header pipe road and its lateral, the first nitrogen branch pipe
Road is connected to oxygen regulating valve 11 and oxygen emergency is diffused on the oxygen channel between branch, and the second nitrogen branch pipe(tube) is connected to
On oxygen channel after two oxygen cutting valves 92 and oxygen valve between pressure transmitter 3, and nitrogen stop valve includes the first nitrogen
101 and second nitrogen stop valve 102 of gas stop valve, the first nitrogen stop valve 101 are arranged at the first nitrogen branch pipe(tube), the second nitrogen
Stop valve 102 is arranged at the second nitrogen branch pipe(tube), to control nitrogen pipeline and the on and off between oxygen channel, into water temperature
Transmitter 5, water inlet stop valve 12, backwater stop valve 13, return water temperature transmitter 6 and cooling water flow transmitter 7 are spent according to oxygen rifle
Liquid flow direction is arranged on oxygen gun cooling water pipeline in cooling water pipeline.
It is understood that oxygen cutting valve, oxygen regulating valve 11, emergency diffusion valve 14, oxygen flow transmitter 1, oxygen
Pressure transmitter 3 is installed on oxygen channel after pressure transmitter 2 and oxygen valve before air valve, and nitrogen pressure transmitter 4, nitrogen are cut
Disconnected valve is installed on nitrogen pipeline, water inlet stop valve 12, backwater stop valve 13 and inflow temperature transmitter 5, return water temperature pick-up
Device 6, cooling water flow transmitter 7 are installed on oxygen gun cooling water pipeline, and lifting motor 15 passes through hoisting oxygen rifle, oxygen rifle position
Put the change in location of sensor measurement oxygen rifle.Flue-gas temperature sensor 8 is installed on flue, all field instruments and execution
Mechanism connects PLC system, the programme-control scene executing agency of PLC system and the operation of motor, the return of collection site instrument
Value, detection and record related data and alarm are in case inquiry.HMI is connected as monitor, PLC system by data communication line
HMI, the operation of system do not depend on HMI.
The operation principle of the control system of the utility model embodiment is described in detail below.
Wherein, in one embodiment of the utility model, before oxygen spray oxygen operation is performed, close the second oxygen and cut
Disconnected valve 92, nitrogen stop valve and emergency diffusion valve 14, and open the first oxygen cutting valve 91, water inlet stop valve 12 and backwater cut-out
Valve 13；Start perform oxygen spray oxygen operation, and oxygen rifle position positioned at open oxygen point when, open the second oxygen cutting valve 92, and
When oxygen rifle position is positioned at pass oxygen point, the second oxygen cutting valve 92 is closed, stops spray oxygen；When there is emergency, lifting electricity
Machine 15 promptly carries rifle, and closes oxygen cutting valve and oxygen regulating valve 11, and opens nitrogen stop valve and emergency diffusion valve 14,
And when in oxygen rifle position being in limes superiors point, close water inlet stop valve 12 and backwater stop valve 13.
Further, in one embodiment of the utility model, oxygen spray oxygen operation include oxygen rifle decline automatically process,
Oxygen lance spraying oxygen process and oxygen rifle automatic lifting process, wherein, during oxygen rifle declines automatically, when oxygen rifle position drops to out oxygen
During point, the second oxygen cutting valve 92 is opened, and starts to spray oxygen operation, and when oxygen rifle position drops to halt, oxygen rifle declines certainly
It is dynamic to stop；During oxygen lance spraying oxygen, when oxygen rifle position is being closed below oxygen point, giving for oxygen is adjusted by oxygen regulating valve 11
It is quantitative, to reach optimal burning condition；During oxygen rifle automatic lifting, when the lifting of oxygen rifle position is to pass oxygen point, second
Oxygen cutting valve 92 is closed, and stops spray oxygen operation, and when oxygen rifle continuously rises to holding point, oxygen rifle lifting is automatically stopped.
It is understood that as shown in figure 3, before system operation, electric furnace starts, and is given by adjusting heating furnace power
Change output power to give calcium carbide stove heat, calcium carbide smelting furnace is heated to certain temperature, the operation of oxygen lance spraying oxygen can be performed.
Each executing agency's state：The second oxygen cutting valve 92, nitrogen stop valve and emergency diffusion valve 14 are closed, opens the first oxygen cutting
Valve 91, water inlet stop valve 12 and backwater stop valve 13, and ensure that cooling water flow meets the requirement of technique, otherwise, oxygen rifle is in
Interlock Status, does not allow to operate.
The position of oxygen rifle is placed on holding point, and (limes superiors point, holding point, close oxygen point, open itchy points, halt, limit inferior point
It is the location point of oxygen rifle, has demarcated finish before being initiated, and height arranges from top to bottom, as above repeats no more hereinafter).Oxygen
The action of the speed of the lifting process of rifle and the second oxygen cutting valve 92 switch is automatically controlled by PLC system executive program.
Oxygen rifle declines automatically：PLC passes through rolling control oxygen rifle liter by Frequency Converter Control lifting motor 15, lifting motor 15
Drop, when the position of oxygen rifle drops to out oxygen point, the second oxygen cutting valve 92 automatically opens up, and starts to spray oxygen operation, when under oxygen rifle
Halt is dropped to, oxygen rifle, which declines, to be automatically stopped, and is waited and being operated in next step.
Oxygen lance spraying oxygen：Oxygen rifle can adjust the given of oxygen below the oxygen point of pass either manually or by oxygen regulating valve 11 is adjusted
Amount, to reach optimal burning condition, while coordinates manual fine-tuning to lift oxygen rifle, to realize optimal energy consumption ratio and technique bar
Part.
Oxygen rifle automatic lifting：PLC passes through rolling control oxygen rifle liter by Frequency Converter Control lifting motor 15, lifting motor 15
Drop, when the position lifting of oxygen rifle is to when closing oxygen point, the second oxygen cutting valve 92 is automatically closed.Stop spray oxygen operation, oxygen rifle continues
Holding point is risen to, oxygen rifle lifting is automatically stopped, waits and operating in next step.
In addition, in one embodiment of the utility model, oxygen spray oxygen operation further includes emergency process, controller
Control, which performs, promptly carries rifle, closes the first oxygen cutting valve 91, the second oxygen cutting valve 92 and oxygen regulating valve 11, opens first
Nitrogen stop valve 101, the second nitrogen stop valve 102 and emergency diffusion valve 14, and after oxygen rifle lifting to limes superiors point, close
Water inlet stop valve 12 and backwater stop valve 13.
It is understood that as shown in figure 3, emergency：Such as occur oxygen rifle leak, oxygen pressure difference abruptly increase after and before the valve
Deng, PLC control perform it is urgent carries rifle, lift oxygen rifle at a high speed, close the first oxygen cutting valve 91, the second oxygen cutting valve 92 and oxygen
Gas regulating valve 11, opens the first nitrogen stop valve 101, the second nitrogen stop valve 102 and emergency diffusion valve 14, is arrived in oxygen rifle lifting
After limes superiors point, water inlet stop valve 12 and backwater stop valve 13 are closed, ensures equipment and personnel safety.
For example, control system installation equipment includes：1st, HMI can be computer or touch-screen, such as using industry
PC, including：The input equipments such as display, host and keyboard；2nd, PLC system, including：Power module, CPU module, digital signal
Input module, digital signal output modules, analog signals input module, analog signals output module etc.；3rd, field instrument
And executing agency, including：Oxygen cutting valve, nitrogen stop valve, oxygen regulating valve 11, water inlet stop valve 12, backwater stop valve 13,
Emergency diffusion valve 14, lifting motor 15, oxygen rifle position sensor, inflow temperature transmitter 5, return water temperature transmitter 6, flue gas temperature
Pressure inverting before degree sensor 8, cooling water flow transmitter 7, oxygen flow transmitter 1, nitrogen pressure transmitter 4, oxygen valve
Pressure transmitter 3 etc. after device 2 and oxygen valve.
Field instrument and executing agency's installation site are according to as shown in figure 3, electric furnace can select Frequency Induction Heating
Stove, all field instruments and executing agency's connection PLC system, PLC system connect Industrial PC by data communication line, work out PLC
The monitoring programme of system control program and host computer Industrial PC.PLC system is become by gathering oxygen rifle position sensor, inflow temperature
Send device 5, return water temperature transmitter 6, flue-gas temperature sensor 8, cooling water flow transmitter 7, oxygen flow transmitter 1, nitrogen
The parameter at the scene such as pressure transmitter 3 controls oxygen in real time after pressure transmitter 2 and oxygen valve before pressure transmitter 4, oxygen valve
Stop valve, nitrogen stop valve, oxygen regulating valve 11, water inlet stop valve 12, backwater stop valve 13, emergency diffusion valve 14, lifting electricity
The grade of machine 15 executing agency, so as to fulfill furnace of calcium carbide automatically controlling using blowing oxygen system.
Specifically, before system operation, electric furnace start, by adjust heating furnace power give change output power come
Calcium carbide stove heat is given, calcium carbide smelting furnace is heated to certain temperature, the operation of oxygen lance spraying oxygen can be performed.Each executing agency's shape
State：The second oxygen cutting valve 92, nitrogen stop valve and emergency diffusion valve 14 are closed, opens the first oxygen cutting valve 91, water inlet is cut
Disconnected valve 12 and backwater stop valve 13, and ensure that cooling water flow meets the requirement of technique, otherwise, oxygen rifle is in Interlock Status, no
Allow to operate.
The position of oxygen rifle is placed on holding point, and (limes superiors point, holding point, close oxygen point, open itchy points, halt, limit inferior point
It is the location point of oxygen rifle, has demarcated finish before being initiated, and height arranges from top to bottom, as above repeats no more hereinafter).Oxygen
The action of the speed of the lifting process of rifle and the second oxygen cutting valve 92 switch is automatically controlled by PLC system executive program.
Oxygen rifle declines automatically：PLC passes through rolling control oxygen rifle liter by Frequency Converter Control lifting motor 15, lifting motor 15
Drop, when the position of oxygen rifle drops to out oxygen point, the second oxygen cutting valve 92 automatically opens up, and starts to spray oxygen operation, when under oxygen rifle
Halt is dropped to, oxygen rifle, which declines, to be automatically stopped, and is waited and being operated in next step.
Oxygen lance spraying oxygen：Oxygen rifle can adjust the given of oxygen below the oxygen point of pass either manually or by oxygen regulating valve 11 is adjusted
Amount, to reach optimal burning condition, while coordinates manual fine-tuning to lift oxygen rifle, to realize optimal energy consumption ratio and technique bar
Part.
Oxygen rifle automatic lifting：PLC passes through rolling control oxygen rifle liter by Frequency Converter Control lifting motor 15, lifting motor 15
Drop, when the position lifting of oxygen rifle is to when closing oxygen point, the second oxygen cutting valve 92 is automatically closed.Stop spray oxygen operation, oxygen rifle continues
Holding point is risen to, oxygen rifle lifting is automatically stopped, waits and operating in next step.
Emergency：Oxygen rifle leak such as occurs, pressure difference abruptly increase etc., PLC control execution promptly carry rifle to oxygen after and before the valve, height
Speed lifting oxygen rifle, closes the first oxygen cutting valve 91, the second nitrogen stop valve 102 and oxygen regulating valve 11, opens the first nitrogen
Stop valve 101, the second nitrogen stop valve 102 and emergency diffusion valve 14, after oxygen rifle lifting to limes superiors point, close water inlet cut-out
Valve 12 and backwater stop valve 13, ensure equipment and personnel safety.
The furnace of calcium carbide proposed according to the utility model embodiment uses the control system of blowing oxygen, is made using PLC system
Carry out safeguards system normal operation for core, by gathering oxygen rifle position sensor, cooling water water inlet return water temperature, flue-gas temperature,
The parameter at the scene such as cooling water flow, oxygen flow, nitrogen pressure, oxygen upstream pressure and oxygen downstream pressure controls oxygen in real time
Gas stop valve, nitrogen stop valve, oxygen regulating valve, water inlet stop valve, backwater stop valve, emergency diffusion valve, lifting motor etc. are held
Row mechanism, i.e., after starting to perform the oxygen spray oxygen operation of furnace of calcium carbide, control executing agency to perform corresponding dynamic according to current state
Make, realize furnace of calcium carbide automatically controlling using blowing oxygen system, effectively reduce the production cost of calcium carbide, and improve use to tie
Structure, possesses the characteristics of stablizing, is safe efficient, improves automation and the reliability of system, simple easily to realize.
The furnace of calcium carbide proposed referring next to attached drawing description according to the utility model embodiment uses the controlling party of blowing oxygen
Method.
Fig. 4 is that the furnace of calcium carbide of the utility model embodiment uses the flow chart of the control method of blowing oxygen.
As shown in figure 4, the furnace of calcium carbide is comprised the following steps using the control method of blowing oxygen：
Step S401, detects the current state of furnace of calcium carbide, current state include oxygen rifle position, return water temperature, inflow temperature,
One kind or more after flue-gas temperature, cooling water flow, oxygen flow, nitrogen pressure, valve before oxygen pressure and valve in oxygen pressure
Kind.
Step S402, before starting to perform oxygen spray oxygen operation, closes the second oxygen cutting valve, nitrogen stop valve and tight
Anxious diffusion valve, and open the first oxygen cutting valve, water inlet stop valve and backwater stop valve.
Step S403, during oxygen rifle declines automatically, when oxygen rifle position drops to out oxygen point, the second oxygen cutting valve
Open, start to spray oxygen operation, and when oxygen rifle position drops to halt, oxygen rifle, which declines, to be automatically stopped.
Step S404, during oxygen lance spraying oxygen, when oxygen rifle position is being closed below oxygen point, is adjusted by oxygen regulating valve
The specified rate of oxygen, to reach optimal burning condition.
Step S405, during oxygen rifle automatic lifting, when the lifting of oxygen rifle position is to pass oxygen point, the second oxygen cutting valve
Close, stop spray oxygen operation, and when oxygen rifle continuously rises to holding point, oxygen rifle lifting is automatically stopped.
It should be noted that foregoing be also suitable furnace of calcium carbide using the explanation of the control system embodiment of blowing oxygen
The control method of blowing oxygen is used in the furnace of calcium carbide of the embodiment, details are not described herein again.
The furnace of calcium carbide proposed according to the utility model embodiment uses the control method of blowing oxygen, is made using PLC system
Carry out safeguards system normal operation for core, by gathering oxygen rifle position sensor, cooling water water inlet return water temperature, flue-gas temperature,
The parameter at the scene such as cooling water flow, oxygen flow, nitrogen pressure, oxygen upstream pressure and oxygen downstream pressure controls oxygen in real time
Gas stop valve, nitrogen stop valve, oxygen regulating valve, water inlet stop valve, backwater stop valve, emergency diffusion valve, lifting motor etc. are held
Row mechanism, i.e., after starting to perform the oxygen spray oxygen operation of furnace of calcium carbide, control executing agency to perform corresponding dynamic according to current state
Make, realize furnace of calcium carbide automatically controlling using blowing oxygen system, effectively reduce the production cost of calcium carbide, and improve use to tie
Structure, possesses the characteristics of stablizing, is safe efficient, improves automation and the reliability of system, simple easily to realize.
In the description of the utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " suitable
The orientation or position relationship of the instruction such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " are based on orientation shown in the drawings
Or position relationship, be for only for ease of description the utility model and simplify and describe, rather than instruction or imply signified device or
Element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that limit to the utility model
System.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the utility model, " multiple " are meant that at least two, such as two
It is a, three etc., unless otherwise specifically defined.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be
Mechanically connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, can be two
The interaction relationship of connection or two elements inside element, unless otherwise restricted clearly.For the common skill of this area
For art personnel, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature is "above" or "below" second feature
Can be that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, first is special
Sign second feature " on ", " top " and " above " can be fisrt feature directly over second feature or oblique upper, or only
Represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be with
Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height and be less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
State and be necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with
Combine in an appropriate manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this area
Technical staff can by the different embodiments or example described in this specification and different embodiments or exemplary feature into
Row combines and combination.
Although the embodiment of the utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to the limitation to the utility model is interpreted as, those of ordinary skill in the art are in the scope of the utility model
It is interior above-described embodiment to be changed, changed, replaced and modification.
Claims (6)
1. a kind of furnace of calcium carbide uses the control system of blowing oxygen, it is characterised in that including：
Detection device, for detecting the current state of furnace of calcium carbide；
Executing agency, for being controlled to the furnace of calcium carbide using blowing oxygen；And
Controller, the controller are connected with the detection device and the executing agency respectively, and the controller is starting to hold
After the oxygen spray oxygen operation of row furnace of calcium carbide, the executing agency is controlled to perform corresponding actions according to the current state, to complete
Blowing oxygen works.
2. furnace of calcium carbide according to claim 1 uses the control system of blowing oxygen, it is characterised in that the current state
Including oxygen after oxygen rifle position, return water temperature, inflow temperature, flue-gas temperature, cooling water flow, oxygen flow, nitrogen pressure, valve
One or more before pressure and valve in oxygen pressure.
3. furnace of calcium carbide according to claim 2 uses the control system of blowing oxygen, it is characterised in that the detection device
Including pressure transmitter, nitrogen pressure transmitter, water inlet after pressure transmitter, oxygen valve before oxygen flow transmitter, oxygen valve
Temperature transmitter, return water temperature transmitter, cooling water flow transmitter, oxygen rifle position sensor and flue-gas temperature sensor, its
In, pressure transmitter is arranged at after pressure transmitter and the oxygen valve before the oxygen flow transmitter, the oxygen valve
On oxygen channel, the nitrogen pressure transmitter is arranged on nitrogen pipeline, the inflow temperature transmitter, the return water temperature
Transmitter and the cooling water flow transmitter are arranged on oxygen gun cooling water pipeline, and the oxygen rifle position sensor detects oxygen
The change in location of rifle, and the flue-gas temperature sensor are arranged on flue.
4. furnace of calcium carbide according to claim 3 uses the control system of blowing oxygen, it is characterised in that the executing agency
Including oxygen cutting valve, nitrogen stop valve, oxygen regulating valve, water inlet stop valve, backwater stop valve, emergency diffusion valve and lifting electricity
Machine, wherein, the oxygen cutting valve, the oxygen regulating valve, the emergency diffusion valve are arranged on oxygen channel, and the nitrogen
Gas stop valve is arranged on nitrogen pipeline, and the water inlet stop valve, the backwater stop valve are arranged on oxygen gun cooling water pipe
On road, and the lifting motor passes through hoisting oxygen rifle；
Wherein, the oxygen cutting valve includes the first oxygen cutting valve and the second oxygen cutting valve, and the oxygen upstream pressure becomes
Send device, the first oxygen cutting valve, the oxygen flow transmitter, the oxygen regulating valve, the emergency diffusion valve, described
Pressure transmitter is arranged at the oxygen according to gas flow in the oxygen channel after second oxygen cutting valve and the oxygen valve
On pipeline, the emergency diffusion valve be arranged between the oxygen regulating valve, the second oxygen cutting valve with the oxygen
The oxygen emergency of pipeline connection is diffused on branch, and the nitrogen pipeline includes the first nitrogen of nitrogen header pipe road and its lateral
Branch pipe(tube) and the second nitrogen branch pipe(tube), the first nitrogen branch pipe(tube) is connected to the oxygen regulating valve and the oxygen emergency is put
Dissipate on the oxygen channel between branch, the second nitrogen branch pipe(tube) is connected to the second oxygen cutting valve and the oxygen valve
Afterwards on the oxygen channel between pressure transmitter, and the nitrogen stop valve includes the first nitrogen stop valve and the second nitrogen is cut
Disconnected valve, the first nitrogen stop valve are arranged at the first nitrogen branch pipe(tube), and the second nitrogen stop valve is arranged at described
Second nitrogen branch pipe(tube), to control on and off between the nitrogen pipeline and the oxygen channel, the inflow temperature becomes
Device, water inlet stop valve, the backwater stop valve, return water temperature transmitter and the cooling water flow transmitter are sent according to the oxygen rifle
Liquid flow direction is arranged on the oxygen gun cooling water pipeline in cooling water pipeline.
5. furnace of calcium carbide according to claim 1 uses the control system of blowing oxygen, it is characterised in that further includes：
The human-computer interaction module being connected with the controller, to receive the control instruction of user.
6. furnace of calcium carbide according to claim 5 uses the control system of blowing oxygen, it is characterised in that the human-computer interaction
Module is human interface device HIMI.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720779754.0U CN207330376U (en) | 2017-06-29 | 2017-06-29 | Furnace of calcium carbide uses the control system of blowing oxygen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720779754.0U CN207330376U (en) | 2017-06-29 | 2017-06-29 | Furnace of calcium carbide uses the control system of blowing oxygen |
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| Publication Number | Publication Date |
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| CN207330376U true CN207330376U (en) | 2018-05-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107117619A (en) * | 2017-06-29 | 2017-09-01 | 神雾环保技术股份有限公司 | Furnace of calcium carbide uses the control system and method for blowing oxygen |
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2017
- 2017-06-29 CN CN201720779754.0U patent/CN207330376U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107117619A (en) * | 2017-06-29 | 2017-09-01 | 神雾环保技术股份有限公司 | Furnace of calcium carbide uses the control system and method for blowing oxygen |
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