CN108050695A - A kind of hot-blast stove of automatic temperature controlling - Google Patents
A kind of hot-blast stove of automatic temperature controlling Download PDFInfo
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- CN108050695A CN108050695A CN201711235733.3A CN201711235733A CN108050695A CN 108050695 A CN108050695 A CN 108050695A CN 201711235733 A CN201711235733 A CN 201711235733A CN 108050695 A CN108050695 A CN 108050695A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
- F24H3/08—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes
- F24H3/081—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes using electric energy supply
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/16—Reducing
- B01J37/18—Reducing with gases containing free hydrogen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
- F24H9/1863—Arrangement or mounting of electric heating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2064—Arrangement or mounting of control or safety devices for air heaters
- F24H9/2071—Arrangement or mounting of control or safety devices for air heaters using electrical energy supply
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
A kind of hot-blast stove of automatic temperature controlling, including heating furnace discharge port, temperature of lower detection device, upper temp detection device, charge door, floss hole, automatic heating device, manually-operated gate, motor-driven valve, flowmeter, the heat tape with accurate temperature control system, automatic heating wind furnace；Heating furnace discharge port is located at the bottom of bar shape heating furnace, the position of bar shape heating furnace lateral inner on the lower carries temperature of lower detection device, the top position of bar shape heating furnace lateral inner carries upper temp detection device, charge door is located at bar shape heating furnace top, automatic hot-air furnace interior carries the pipeline of helical form arrangement, and the side of automatic heating wind furnace carries the heat tape with accurate temperature control system.Advantages of the present invention：Global design is that closed container, bottom and top control unlatching by valve, can be relatively more flexible with normal pressure or pressurize heating operation, has novelty, saving equipment cost in field of catalyst preparation from function and structure.
Description
Technical field
The present invention relates to catalyst-handling equipment field, a kind of more particularly to hot-blast stove of automatic temperature controlling.
Background technology
Catalyst carrier activation, finished catalyst activation, catalyst reduction and molecular sieve roasting are Catalyst Production systems
The important process component of standby process, generally requires to be respectively completed by different roasting apparatus, for example, batch-type furnace, tunnel oven,
Rotary furnace, atmosphere furnace etc. at present, lack relevant multi-functional, versatile equipment.
The content of the invention
The purpose of the present invention is the activation of collection catalyst carrier, finished catalyst activation, catalyst reduction and molecular sieve roastings
Etc. functions be integrated, provided a kind of hot-blast stove of automatic temperature controlling.
The present invention provides a kind of hot-blast stoves of automatic temperature controlling, it is characterised in that：The hot wind of the automatic temperature controlling
Stove, including heating furnace discharge port 1, temperature of lower detection device 2, upper temp detection device 3, charge door 4, floss hole 5, automatically
Heating unit 6, manually-operated gate 7, motor-driven valve 8, flowmeter 9, the heat tape 10 with accurate temperature control system, automatic heating wind furnace
11；
Wherein：Heating furnace discharge port 1 is located at the bottom of bar shape heating furnace, the position of bar shape heating furnace lateral inner on the lower
It puts with temperature of lower detection device 2, the top position of bar shape heating furnace lateral inner carries upper temp detection device 3,
Charge door 4 is located at bar shape heating furnace top, and bar shape heating furnace upper side carries floss hole 5, and automatic heating device 6 is wound
In bar shape heating furnace side, outside carries insulating layer；
11 pipeline of the inside with helical form arrangement of automatic heating wind furnace, manually valve 7 adds with bar shape for pipeline one end
Connection inside hot stove, manually valve 7, motor-driven valve 8 and flowmeter 9 are connected the pipeline other end with external compression air pump, from
The side of dynamic hot-blast stove 11 carries the heat tape 10 with accurate temperature control system.
The bar shape heating furnace from top to bottom, is divided into seven segment structures.
The hot-blast stove of the automatic temperature controlling, also with the control device that programmable logic controller (PLC) is core, difference
It is connected with motor-driven valve 8, automatic heating device 6 and heat tape 10 with accurate temperature control system.
11 monolithic case of automatic heating wind furnace is cube structure.
The hot-blast stove of the automatic temperature controlling further includes touch screen display system, is connected with programmable logic controller (PLC).
Compressed air passes through valve, and flowmeter, into automatic hot-air stove heat after electronic valve regulation, temperature reaches setting temperature
After degree, high temperature compressed air enters vertical activation furnace heated material, and exhaust gas is discharged by vertical activation furnace top.
The heating of compressed air is controlled by automatic hot-air furnace pressure contracting air exit temp and fire box temperature, and compressed air is vertical
It is gradually increasing during formula activation furnace heated material, temperature is gradually reduced, in order to keep temperature in vertical activation furnace, Verticle active
Change stove and be divided into seven areas from below to up, displays temperature is distinguished in each area, and an area to 6th area is controlled by PLC by temperature change and corresponded to
The heating in region, it is ensured that the temperature of material is maintained in the range of setting in vertical activation furnace.
Every activation furnace and an automatic heating wind furnace form a set of independent process system, using PLC control system to work
All parameters for changing stove and automatic heating wind furnace are detected, control or show.And perform the protection of alarm and automatic interlock blowing out
Function；The data such as all operating parameters, state, alarm signal can be transmitted to central control room by control system, and receive center
The urgent blowing out ESD signals of control room.Interlock protection signal is mainly overtemperature, and superpressure powers off, electric fault etc..
Often set process system platform is configured with independent switch board and is equipped with a PLC liquid crystal touch display screen.All operation ginsengs
The switch board that the data such as number, state, alarm signal access on the spot simultaneously can show screen display in PLC, and set communication interface.
Heating furnace technical process：
Hydrogen, air-heating furnace are cube shaped, and major function is to provide the heating of medium from outside for vertical activation furnace
Function heater body is multilayer coil pipe, is compressed air, hydrogen or nitrogen by medium, and the thermal medium after heating enters vertical
Stove flue passes through catalyst feed bed, so as to reach the purpose of catalyst high-temperature roasting, decomposition, oxidation, reduction.
Hydrogen, air-heating furnace are by furnace body, temperature detection device, resistance band, 310S stainless steel tubes, stainless steel case
Body, high-purity alumina silicate fibre fold the compositions such as block, sealing device.It is high with the thermal efficiency, pressure-resistant, reliable, easy to operate, use of insulating
Long lifespan, the features such as safe and reliable, temperature control is accurate, easy to maintain.
Vertical activation furnace technical process：Vertical activation furnace is made of from top to bottom the electric heater unit of 7 heating zones, each
Qu Weiyi group electric heater units, the design power of one group of electric heater unit is 21kw or so, and whole vertical heater always heats work(
Rate is 150kw or so.Material adds in from top to down in vertical activation furnace, and the thermal current that vertical heater outer heating device comes out is from activation furnace
Bottom enters, and is discharged after material is heated by technological requirement from bottom, and the activating velocity of the bed of material is true according to the technological requirement of material
It is fixed.Exhaust gas after the completion of activation at the top of activation furnace by discharging.
Every hydrogen, air-heating furnace and vertical activation furnace configure a set of PLC temperature control systems, and PLC automatically controls hydrogen
It is warm in the burner hearth of gas air-heating furnace, the simultaneously interior flow by heat gas of gauge line is adjusted, respectively temperature in measurement burner hearth, in pipe
Gas temperature, at vertical activation furnace temperature control point 7, each one temperature measuring point in heating zone corresponds to one group of electricity in the heating zone respectively
Heating unit, and a Closed Loop Control Unit is formed with the power regulating eqiupment of corresponding electric heater unit power supply, automatically control heating zone
The temperature of liner, PLC system are exported according to the electric current of the temperature adjust automatically power regulating eqiupment in each area, temperature are maintained the temperature of setting
In the range of degree, the temperature control system of whole vertical activation furnace of composition from below to up.
Every hydrogen air heating furnace sets a pressure detecting point, and pressure limit 0-0.5Mpa touches screen display in PLC
Show pressure.
Vertical activation furnace automatic control system is formed：
It is made of 200 system PLC and mcgs touch-screens of Siemens S7.PLC system by On-off signal, output module and
Analog quantity current signal input module, temperature-detecting device module, analog output module composition；Temperature is included by external signal
The acquisitions such as degree, pressure, flow, system realize vertical heating furnace and activation furnace heating and temperature control by logical operation.
Touchscreen configuration picture, including control system technological process picture：Parameters refer in monitoring technological process in real time
Mark；Parameter setting adjusts picture：Technological process parameters are set and volume damper is controlled to export, scene is heated
Temperature control effectively；Parameter alarm screen：Temperature parameter alarming value setting is carried out, the work for having temperature requirement to technological process
Skill point carries out alarming value setting, and overtemperature alarm prompting site operation personnel is handled.
It is realized first according to scene and measures temperature and technological process, in the enterprising trip temperature of touch-screen parameter setting configuration picture
Parameter setting, activation furnace segmentation carry out heating temperature setting by heating time periods and heat-up periods, and hydrogen air heating furnace is pressed
Heating time periods and heat-up periods carry out fire box temperature control setting and the setting of heating temperature end value；Parameters are set
Surely finish, start control system by startup button, hydrogen air heating furnace and activation furnace are progressively added by control system design temperature
During which hot hot-air controls air force by controlling volume damper, hot-air reaches technological requirement, and hot-air is sent into
Activation furnace.
PLC program operates：
PLC operations are carried out by touch screen human-computer interface, monitor parameters index in technological process in real time, including：It is empty
Gas inlet pressure, air intake mouth temperature, air adjustment valve opening, air instantaneous delivery, heating-furnace bore temperature, hot wind temperature
Degree, one section of temperature of vertical activation furnace, two sections of temperature, three sections of temperature, four sections of temperature, five sections of temperature, six sections of temperature, seven sections of temperature.
Parameter setting is adjusted：Technological process parameters are set and volume damper is controlled to export, scene is added
Hot temperature control effectively." setting value " refers to the temperature value that every section of temperature can be heated to, temperature stabilization in this temperature
Point；" S heating cycle " refers to heating time setting how many second, and the temperature value that can be set with " heat-up periods DEG C " heats；" between heating
Every DEG C " refer to temperature value setting, refer to several seconds can heat how many degree.Such as：" S heating cycle " sets 60S, and " heat-up periods DEG C " are set
It is 2 DEG C fixed, it is exactly that 2 DEG C can be heated in 60S, however not excluded that the influence of thermal inertia." increase, reduce " button：For adjusting air valve
Aperture, to adjust air instantaneous delivery.
Parameter is alarmed：Temperature parameter alarming value setting is carried out, the process point for having temperature requirement to technological process is alarmed
Value setting, overtemperature alarm prompting site operation personnel are handled." alarm setting value "：It is more than this to refer to parameters real time temperature
A setting value, is issued by alarm." alarm condition "：It is exactly alarm, it is more than to set alarming value, alarm condition to have temperature
Just there are discoloration and flickering display, switch board simultaneously sends acousto-optic alarm." show value " is each section of temperature real-time temperature values of display,
Reference role is risen to alarm setting value.
When equipment is stopped, it is necessary to close electrical power control cabinet, power cabinet power supply is cleaned out in vertical activation furnace, closed
The corresponding position of the switch of equipment and power supply closed needs suspension equipment to disable, can not power transmission mark, it is ensured that safety.
Automatic heating wind furnace is by resistance furnace main body, temperature control, heat pipe, sealing device, gas feeding system, high-temperature electric
The compositions such as stopband, refractory material, temperature-detecting device, compensating wire.With following functions：Adapted temperature controller can be realized certainly
Dynamic heating, thermometric, temperature control, constant temperature.Belong to the gas heating special equipment of continuous sex work.
Resistance furnace main body is folded block furnace lining, heating element, temperature-detecting device, stainless steel casing etc. by high aluminum fiber and is formed,
There is quick heating, light-weight, energy saving, acid-alkali-corrosive-resisting.
Heating element Shoudu Iron and Steel Co high temperature resistance band.Material 0Gr21Al6Nb specifications 1.8*20mm
Temperature control selects the instrument and meters such as PLC control system, silicon-controlled to form.With intelligent temperature control, PID adjust, when
Between the functions such as ratio heating, output percentage, overtemperature alarm, disconnected even protection.It can show that electric furnace owns on touch-screen display
Parameter.
310 stainless steel tube of air heats pipe bears Hydrogen Vapor Pressure by heat pipe, and receives heat.It is set in air inlet, air outlet pipe
Put the temperature-detecting device of monitoring hydrogen temperature.
Temperature controller is not required to special mounting, is placed on indoor smooth ground or on workbench, but temperature controls
Device should avoid being placed on the environment that can be given a shock, and with electric furnace should not be excessively near place.Prevented the normal of heat affecting controller
Work.
Advantages of the present invention：
The hot-blast stove of automatic temperature controlling of the present invention, global design are closed container, bottom and top by valve control
System is opened, can be relatively more flexible with normal pressure or pressurize heating operation, has innovation in field of catalyst preparation from function and structure
Property, save equipment cost.
Description of the drawings
Below in conjunction with the accompanying drawings and embodiment the present invention is described in further detail：
Fig. 1 is the hot-blast stove structure diagram of automatic temperature controlling；
Fig. 2 is bar shape heating furnace structure schematic diagram.
Specific embodiment
Embodiment 1
The present invention provides a kind of hot-blast stoves of automatic temperature controlling, it is characterised in that：The hot wind of the automatic temperature controlling
Stove, including heating furnace discharge port 1, temperature of lower detection device 2, upper temp detection device 3, charge door 4, floss hole 5, automatically
Heating unit 6, manually-operated gate 7, motor-driven valve 8, flowmeter 9, the heat tape 10 with accurate temperature control system, automatic heating wind furnace
11；
Wherein：Heating furnace discharge port 1 is located at the bottom of bar shape heating furnace, the position of bar shape heating furnace lateral inner on the lower
It puts with temperature of lower detection device 2, the top position of bar shape heating furnace lateral inner carries upper temp detection device 3,
Charge door 4 is located at bar shape heating furnace top, and bar shape heating furnace upper side carries floss hole 5, and automatic heating device 6 is wound
In bar shape heating furnace side, outside carries insulating layer；
11 pipeline of the inside with helical form arrangement of automatic heating wind furnace, manually valve 7 adds with bar shape for pipeline one end
Connection inside hot stove, manually valve 7, motor-driven valve 8 and flowmeter 9 are connected the pipeline other end with external compression air pump, from
The side of dynamic hot-blast stove 11 carries the heat tape 10 with accurate temperature control system.
The bar shape heating furnace from top to bottom, is divided into seven segment structures.
The hot-blast stove of the automatic temperature controlling, also with the control device that programmable logic controller (PLC) is core, difference
It is connected with motor-driven valve 8, automatic heating device 6 and heat tape 10 with accurate temperature control system.
11 monolithic case of automatic heating wind furnace is cube structure.
The hot-blast stove of the automatic temperature controlling further includes touch screen display system, is connected with programmable logic controller (PLC).
Compressed air passes through valve, and flowmeter, into automatic hot-air stove heat after electronic valve regulation, temperature reaches setting temperature
After degree, high temperature compressed air enters vertical activation furnace heated material, and exhaust gas is discharged by vertical activation furnace top.
The heating of compressed air is controlled by automatic hot-air furnace pressure contracting air exit temp and fire box temperature, and compressed air is vertical
It is gradually increasing during formula activation furnace heated material, temperature is gradually reduced, in order to keep temperature in vertical activation furnace, Verticle active
Change stove and be divided into seven areas from below to up, displays temperature is distinguished in each area, and an area to 6th area is controlled by PLC by temperature change and corresponded to
The heating in region, it is ensured that the temperature of material is maintained in the range of setting in vertical activation furnace.
Every activation furnace and an automatic heating wind furnace form a set of independent process system, using PLC control system to work
All parameters for changing stove and automatic heating wind furnace are detected, control or show.And perform the protection of alarm and automatic interlock blowing out
Function；The data such as all operating parameters, state, alarm signal can be transmitted to central control room by control system, and receive center
The urgent blowing out ESD signals of control room.Interlock protection signal is mainly overtemperature, and superpressure powers off, electric fault etc..
Often set process system platform is configured with independent switch board and is equipped with a PLC liquid crystal touch display screen.All operation ginsengs
The switch board that the data such as number, state, alarm signal access on the spot simultaneously can show screen display in PLC, and set communication interface.
Control System Software selects the Siemens's S-200 control softwares and system of mature and reliable, and Siemens S-200 controls are soft
Part has the very convenient Chinese operation interface used, and the scalability of measuring point is also fine, and it is defeated to carry address inside programming software
Enter, the numerical value of encoder can send PLC, the simulation output that PLC outputs are 4-20 milliamperes, the measuring point data of PLC control system to
Collect and computing is all very fast, the real-time processing of signal and data records, output, alarms and control to adjust feedback and system
Protection setting is comprehensive.
The signal transmission form serial communication of PLC and middle control computer.
Hydrogen, air-heating furnace：The important configuration section of vertical activation furnace complete set of equipments is more using electrical heating side's furnace interior
Layer coil pipe, is compressed air, hydrogen or nitrogen by medium, and thermal medium enters vertical heater flue, passes through catalyst feed bed,
So as to reach the purpose of catalyst high-temperature roasting, decomposition, oxidation, reduction.It needs to control entrance flow, temperature, pressure.
Vertical activation furnace：The important configuration section of catalyst vertical activation furnace complete set of equipments, using cylinder enclosed split
Combine electric heating body, by control in the vertical stove flue of the means such as temperature, pressure catalyst feed bed carry out peripheral heating or
Heat preservation aids in the thermal medium that following hydrogen, air-heating furnace provide to reach the techniques purpose such as Roasting Decomposition to catalyst in flue.
Heating furnace technical process：
Hydrogen, air-heating furnace are cube shaped, and major function is to provide the heating of medium from outside for vertical activation furnace
Function heater body is multilayer coil pipe, is compressed air, hydrogen or nitrogen by medium, and the thermal medium after heating enters vertical
Stove flue passes through catalyst feed bed, so as to reach the purpose of catalyst high-temperature roasting, decomposition, oxidation, reduction.
Hydrogen, air-heating furnace are by furnace body, temperature detection device, resistance band, 310S stainless steel tubes, stainless steel case
Body, high-purity alumina silicate fibre fold the compositions such as block, sealing device.It is high with the thermal efficiency, pressure-resistant, reliable, easy to operate, use of insulating
Long lifespan, the features such as safe and reliable, temperature control is accurate, easy to maintain.
Vertical activation furnace technical process：Vertical activation furnace is made of from top to bottom the electric heater unit of 7 heating zones, each
Qu Weiyi group electric heater units, the design power of one group of electric heater unit is 21kw or so, and whole vertical heater always heats work(
Rate is 150kw or so.Material adds in from top to down in vertical activation furnace, and the thermal current that vertical heater outer heating device comes out is from activation furnace
Bottom enters, and is discharged after material is heated by technological requirement from bottom, and the activating velocity of the bed of material is true according to the technological requirement of material
It is fixed.Exhaust gas after the completion of activation at the top of activation furnace by discharging.
Every hydrogen, air-heating furnace and vertical activation furnace configure a set of PLC temperature control systems, and PLC automatically controls hydrogen
It is warm in the burner hearth of gas air-heating furnace, the simultaneously interior flow by heat gas of gauge line is adjusted, respectively temperature in measurement burner hearth, in pipe
Gas temperature, at vertical activation furnace temperature control point 7, each one temperature measuring point in heating zone corresponds to one group of electricity in the heating zone respectively
Heating unit, and a Closed Loop Control Unit is formed with the power regulating eqiupment of corresponding electric heater unit power supply, automatically control heating zone
The temperature of liner, PLC system are exported according to the electric current of the temperature adjust automatically power regulating eqiupment in each area, temperature are maintained the temperature of setting
In the range of degree, the temperature control system of whole vertical activation furnace of composition from below to up.
Every hydrogen air heating furnace sets a pressure detecting point, and pressure limit 0-0.5Mpa touches screen display in PLC
Show pressure.
Vertical activation furnace automatic control system is formed：
It is made of 200 system PLC and mcgs touch-screens of Siemens S7.PLC system by On-off signal, output module and
Analog quantity current signal input module, temperature-detecting device module, analog output module composition；Temperature is included by external signal
The acquisitions such as degree, pressure, flow, system realize vertical heating furnace and activation furnace heating and temperature control by logical operation.
Touchscreen configuration picture, including control system technological process picture：Parameters refer in monitoring technological process in real time
Mark；Parameter setting adjusts picture：Technological process parameters are set and volume damper is controlled to export, scene is heated
Temperature control effectively；Parameter alarm screen：Temperature parameter alarming value setting is carried out, the work for having temperature requirement to technological process
Skill point carries out alarming value setting, and overtemperature alarm prompting site operation personnel is handled.
It is realized first according to scene and measures temperature and technological process, in the enterprising trip temperature of touch-screen parameter setting configuration picture
Parameter setting, activation furnace segmentation carry out heating temperature setting by heating time periods and heat-up periods, and hydrogen air heating furnace is pressed
Heating time periods and heat-up periods carry out fire box temperature control setting and the setting of heating temperature end value；Parameters are set
Surely finish, start control system by startup button, hydrogen air heating furnace and activation furnace are progressively added by control system design temperature
During which hot hot-air controls air force by controlling volume damper, hot-air reaches technological requirement, and hot-air is sent into
Activation furnace.
PLC program operates：
PLC operations are carried out by touch screen human-computer interface, monitor parameters index in technological process in real time, including：It is empty
Gas inlet pressure, air intake mouth temperature, air adjustment valve opening, air instantaneous delivery, heating-furnace bore temperature, hot wind temperature
Degree, one section of temperature of vertical activation furnace, two sections of temperature, three sections of temperature, four sections of temperature, five sections of temperature, six sections of temperature, seven sections of temperature.
Parameter setting is adjusted：Technological process parameters are set and volume damper is controlled to export, scene is added
Hot temperature control effectively." setting value " refers to the temperature value that every section of temperature can be heated to, temperature stabilization in this temperature
Point；" S heating cycle " refers to heating time setting how many second, and the temperature value that can be set with " heat-up periods DEG C " heats；" between heating
Every DEG C " refer to temperature value setting, refer to several seconds can heat how many degree.Such as：" S heating cycle " sets 60S, and " heat-up periods DEG C " are set
It is 2 DEG C fixed, it is exactly that 2 DEG C can be heated in 60S, however not excluded that the influence of thermal inertia." increase, reduce " button：For adjusting air valve
Aperture, to adjust air instantaneous delivery.
Parameter is alarmed：Temperature parameter alarming value setting is carried out, the process point for having temperature requirement to technological process is alarmed
Value setting, overtemperature alarm prompting site operation personnel are handled." alarm setting value "：It is more than this to refer to parameters real time temperature
A setting value, is issued by alarm." alarm condition "：It is exactly alarm, it is more than to set alarming value, alarm condition to have temperature
Just there are discoloration and flickering display, switch board simultaneously sends acousto-optic alarm." show value " is each section of temperature real-time temperature values of display,
Reference role is risen to alarm setting value.
When equipment is stopped, it is necessary to close electrical power control cabinet, power cabinet power supply is cleaned out in vertical activation furnace, closed
The corresponding position of the switch of equipment and power supply closed needs suspension equipment to disable, can not power transmission mark, it is ensured that safety.
Automatic heating wind furnace is by resistance furnace main body, temperature control, heat pipe, sealing device, gas feeding system, high-temperature electric
The compositions such as stopband, refractory material, temperature-detecting device, compensating wire.With following functions：Adapted temperature controller can be realized certainly
Dynamic heating, thermometric, temperature control, constant temperature.Belong to the gas heating special equipment of continuous sex work.
Resistance furnace main body is folded block furnace lining, heating element, temperature-detecting device, stainless steel casing etc. by high aluminum fiber and is formed,
There is quick heating, light-weight, energy saving, acid-alkali-corrosive-resisting.
Heating element Shoudu Iron and Steel Co high temperature resistance band.Material 0Gr21Al6Nb specifications 1.8*20mm
Temperature control selects the instrument and meters such as PLC control system, silicon-controlled to form.With intelligent temperature control, PID adjust, when
Between the functions such as ratio heating, output percentage, overtemperature alarm, disconnected even protection.It can show that electric furnace owns on touch-screen display
Parameter.
310 stainless steel tube of air heats pipe bears Hydrogen Vapor Pressure by heat pipe, and receives heat.It is set in air inlet, air outlet pipe
Put the temperature-detecting device of monitoring hydrogen temperature.
Temperature controller is not required to special mounting, is placed on indoor smooth ground or on workbench, but temperature controls
Device should avoid being placed on the environment that can be given a shock, and with electric furnace should not be excessively near place.Prevented the normal of heat affecting controller
Work.
Embodiment 2
The present invention provides a kind of hot-blast stoves of automatic temperature controlling, it is characterised in that：The hot wind of the automatic temperature controlling
Stove, including heating furnace discharge port 1, temperature of lower detection device 2, upper temp detection device 3, charge door 4, floss hole 5, automatically
Heating unit 6, manually-operated gate 7, motor-driven valve 8, flowmeter 9, the heat tape 10 with accurate temperature control system, automatic heating wind furnace
11；
Wherein：Heating furnace discharge port 1 is located at the bottom of bar shape heating furnace, the position of bar shape heating furnace lateral inner on the lower
It puts with temperature of lower detection device 2, the top position of bar shape heating furnace lateral inner carries upper temp detection device 3,
Charge door 4 is located at bar shape heating furnace top, and bar shape heating furnace upper side carries floss hole 5, and automatic heating device 6 is wound
In bar shape heating furnace side, outside carries insulating layer；
11 pipeline of the inside with helical form arrangement of automatic heating wind furnace, manually valve 7 adds with bar shape for pipeline one end
Connection inside hot stove, manually valve 7, motor-driven valve 8 and flowmeter 9 are connected the pipeline other end with external compression air pump, from
The side of dynamic hot-blast stove 11 carries the heat tape 10 with accurate temperature control system.
The hot-blast stove of the automatic temperature controlling further includes touch screen display system, is connected with programmable logic controller (PLC).
Compressed air passes through valve, and flowmeter, into automatic hot-air stove heat after electronic valve regulation, temperature reaches setting temperature
After degree, high temperature compressed air enters vertical activation furnace heated material, and exhaust gas is discharged by vertical activation furnace top.
The heating of compressed air is controlled by automatic hot-air furnace pressure contracting air exit temp and fire box temperature, and compressed air is vertical
It is gradually increasing during formula activation furnace heated material, temperature is gradually reduced, in order to keep temperature in vertical activation furnace, Verticle active
Change stove and be divided into seven areas from below to up, displays temperature is distinguished in each area, and an area to 6th area is controlled by PLC by temperature change and corresponded to
The heating in region, it is ensured that the temperature of material is maintained in the range of setting in vertical activation furnace.
Every activation furnace and an automatic heating wind furnace form a set of independent process system, using PLC control system to work
All parameters for changing stove and automatic heating wind furnace are detected, control or show.And perform the protection of alarm and automatic interlock blowing out
Function；The data such as all operating parameters, state, alarm signal can be transmitted to central control room by control system, and receive center
The urgent blowing out ESD signals of control room.Interlock protection signal is mainly overtemperature, and superpressure powers off, electric fault etc..
Often set process system platform is configured with independent switch board and is equipped with a PLC liquid crystal touch display screen.All operation ginsengs
The switch board that the data such as number, state, alarm signal access on the spot simultaneously can show screen display in PLC, and set communication interface.
The signal transmission form serial communication of PLC and middle control computer.
Hydrogen, air-heating furnace：The important configuration section of vertical activation furnace complete set of equipments is more using electrical heating side's furnace interior
Layer coil pipe, is compressed air, hydrogen or nitrogen by medium, and thermal medium enters vertical heater flue, passes through catalyst feed bed,
So as to reach the purpose of catalyst high-temperature roasting, decomposition, oxidation, reduction.It needs to control entrance flow, temperature, pressure.
Vertical activation furnace：The important configuration section of catalyst vertical activation furnace complete set of equipments, using cylinder enclosed split
Combine electric heating body, by control in the vertical stove flue of the means such as temperature, pressure catalyst feed bed carry out peripheral heating or
Heat preservation aids in the thermal medium that following hydrogen, air-heating furnace provide to reach the techniques purpose such as Roasting Decomposition to catalyst in flue.
Heating furnace technical process：
Hydrogen, air-heating furnace are cube shaped, and major function is to provide the heating of medium from outside for vertical activation furnace
Function heater body is multilayer coil pipe, is compressed air, hydrogen or nitrogen by medium, and the thermal medium after heating enters vertical
Stove flue passes through catalyst feed bed, so as to reach the purpose of catalyst high-temperature roasting, decomposition, oxidation, reduction.
Hydrogen, air-heating furnace are by furnace body, temperature detection device, resistance band, 310S stainless steel tubes, stainless steel case
Body, high-purity alumina silicate fibre fold the compositions such as block, sealing device.It is high with the thermal efficiency, pressure-resistant, reliable, easy to operate, use of insulating
Long lifespan, the features such as safe and reliable, temperature control is accurate, easy to maintain.
Every hydrogen, air-heating furnace and vertical activation furnace configure a set of PLC temperature control systems, and PLC automatically controls hydrogen
It is warm in the burner hearth of gas air-heating furnace, the simultaneously interior flow by heat gas of gauge line is adjusted, respectively temperature in measurement burner hearth, in pipe
Gas temperature, at vertical activation furnace temperature control point 7, each one temperature measuring point in heating zone corresponds to one group of electricity in the heating zone respectively
Heating unit, and a Closed Loop Control Unit is formed with the power regulating eqiupment of corresponding electric heater unit power supply, automatically control heating zone
The temperature of liner, PLC system are exported according to the electric current of the temperature adjust automatically power regulating eqiupment in each area, temperature are maintained the temperature of setting
In the range of degree, the temperature control system of whole vertical activation furnace of composition from below to up.
Every hydrogen air heating furnace sets a pressure detecting point, and pressure limit 0-0.5Mpa touches screen display in PLC
Show pressure.
Vertical activation furnace automatic control system is formed：
It is made of 200 system PLC and mcgs touch-screens of Siemens S7.PLC system by On-off signal, output module and
Analog quantity current signal input module, temperature-detecting device module, analog output module composition；Temperature is included by external signal
The acquisitions such as degree, pressure, flow, system realize vertical heating furnace and activation furnace heating and temperature control by logical operation.
It is realized first according to scene and measures temperature and technological process, in the enterprising trip temperature of touch-screen parameter setting configuration picture
Parameter setting, activation furnace segmentation carry out heating temperature setting by heating time periods and heat-up periods, and hydrogen air heating furnace is pressed
Heating time periods and heat-up periods carry out fire box temperature control setting and the setting of heating temperature end value；Parameters are set
Surely finish, start control system by startup button, hydrogen air heating furnace and activation furnace are progressively added by control system design temperature
During which hot hot-air controls air force by controlling volume damper, hot-air reaches technological requirement, and hot-air is sent into
Activation furnace.
PLC program operates：
PLC operations are carried out by touch screen human-computer interface, monitor parameters index in technological process in real time, including：It is empty
Gas inlet pressure, air intake mouth temperature, air adjustment valve opening, air instantaneous delivery, heating-furnace bore temperature, hot wind temperature
Degree, one section of temperature of vertical activation furnace, two sections of temperature, three sections of temperature, four sections of temperature, five sections of temperature, six sections of temperature, seven sections of temperature.
Parameter setting is adjusted：Technological process parameters are set and volume damper is controlled to export, scene is added
Hot temperature control effectively." setting value " refers to the temperature value that every section of temperature can be heated to, temperature stabilization in this temperature
Point；" S heating cycle " refers to heating time setting how many second, and the temperature value that can be set with " heat-up periods DEG C " heats；" between heating
Every DEG C " refer to temperature value setting, refer to several seconds can heat how many degree.Such as：" S heating cycle " sets 60S, and " heat-up periods DEG C " are set
It is 2 DEG C fixed, it is exactly that 2 DEG C can be heated in 60S, however not excluded that the influence of thermal inertia." increase, reduce " button：For adjusting air valve
Aperture, to adjust air instantaneous delivery.
Parameter is alarmed：Temperature parameter alarming value setting is carried out, the process point for having temperature requirement to technological process is alarmed
Value setting, overtemperature alarm prompting site operation personnel are handled." alarm setting value "：It is more than this to refer to parameters real time temperature
A setting value, is issued by alarm." alarm condition "：It is exactly alarm, it is more than to set alarming value, alarm condition to have temperature
Just there are discoloration and flickering display, switch board simultaneously sends acousto-optic alarm." show value " is each section of temperature real-time temperature values of display,
Reference role is risen to alarm setting value.
When equipment is stopped, it is necessary to close electrical power control cabinet, power cabinet power supply is cleaned out in vertical activation furnace, closed
The corresponding position of the switch of equipment and power supply closed needs suspension equipment to disable, can not power transmission mark, it is ensured that safety.
Automatic heating wind furnace is by resistance furnace main body, temperature control, heat pipe, sealing device, gas feeding system, high-temperature electric
The compositions such as stopband, refractory material, temperature-detecting device, compensating wire.With following functions：Adapted temperature controller can be realized certainly
Dynamic heating, thermometric, temperature control, constant temperature.Belong to the gas heating special equipment of continuous sex work.
Resistance furnace main body is folded block furnace lining, heating element, temperature-detecting device, stainless steel casing etc. by high aluminum fiber and is formed,
There is quick heating, light-weight, energy saving, acid-alkali-corrosive-resisting.
Temperature control selects the instrument and meters such as PLC control system, silicon-controlled to form.With intelligent temperature control, PID adjust, when
Between the functions such as ratio heating, output percentage, overtemperature alarm, disconnected even protection.It can show that electric furnace owns on touch-screen display
Parameter.
310 stainless steel tube of air heats pipe bears Hydrogen Vapor Pressure by heat pipe, and receives heat.It is set in air inlet, air outlet pipe
Put the temperature-detecting device of monitoring hydrogen temperature.
Temperature controller is not required to special mounting, is placed on indoor smooth ground or on workbench, but temperature controls
Device should avoid being placed on the environment that can be given a shock, and with electric furnace should not be excessively near place.Prevented the normal of heat affecting controller
Work.
Claims (3)
1. a kind of hot-blast stove of automatic temperature controlling, it is characterised in that：The hot-blast stove of the automatic temperature controlling, goes out including heating furnace
Material mouth (1), temperature of lower detection device (2), upper temp detection device (3), charge door (4), floss hole (5) are automatic to heat
Device (6), manually-operated gate (7), motor-driven valve (8), flowmeter (9), the heat tape (10) with accurate temperature control system, automatic heating
Wind furnace (11)；Wherein：Heating furnace discharge port (1) is located at the bottom of bar shape heating furnace, and bar shape heating furnace lateral inner is on the lower
Position with temperature of lower detection device (2), the top position of bar shape heating furnace lateral inner is with upper temp detection
Device (3), charge door (4) are located at bar shape heating furnace top, and bar shape heating furnace upper side carries floss hole (5), automatically
Heating unit (6) is wrapped in bar shape heating furnace side, and outside carries insulating layer；Helical form is carried inside automatic heating wind furnace (11)
The pipeline of arrangement, manually valve (7) is connected with bar shape inside heating furnace for pipeline one end, the pipeline other end manually valve
Door (7), motor-driven valve (8) and flowmeter (9) are connected with external compression air pump, and the side of automatic heating wind furnace (11) is carried with essence
The heat tape (10) of quasi- temperature control system.
2. the hot-blast stove of automatic temperature controlling described in accordance with the claim 1, it is characterised in that：The hot wind of the automatic temperature controlling
Stove, also with programmable logic controller (PLC) be core control device, respectively with motor-driven valve (8), automatic heating device (6) and band
The heat tape (10) for having accurate temperature control system connects.
3. the hot-blast stove of automatic temperature controlling described in accordance with the claim 1, it is characterised in that：The hot wind of the automatic temperature controlling
Stove further includes touch screen display system, is connected with programmable logic controller (PLC).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108762187A (en) * | 2018-05-29 | 2018-11-06 | 南通理工学院 | A kind of heating reaction furnace monitoring system based on MCGS |
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Application publication date: 20180518 |