CN207649334U - A kind of energy-efficient automation roller kilns - Google Patents
A kind of energy-efficient automation roller kilns Download PDFInfo
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- CN207649334U CN207649334U CN201721433814.XU CN201721433814U CN207649334U CN 207649334 U CN207649334 U CN 207649334U CN 201721433814 U CN201721433814 U CN 201721433814U CN 207649334 U CN207649334 U CN 207649334U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Abstract
The utility model discloses a kind of energy-efficient automation roller kilns, including kiln body, conveying device, heating system, combustion-supporting smoke evacuation system and Distributed Control System；The kiln body is equipped with preheating zone, zoneofoxidation, high temperature firing area and cooling zone；Conveying device includes being set to three layers of rollgang being from top to bottom arranged in the furnace chamber；Heating system includes fuel gas pipeline, oxygen pipeline and the microwave thermal radiation spray gun set on the kiln body two side；The combustion-supporting smoke evacuation system includes fume extraction unit, UTILIZATION OF VESIDUAL HEAT IN unit and pumping temperature reducing unit；The Distributed Control System carries out automation control to each control unit in the conveying device, heating system, combustion-supporting smoke evacuation system.The roller kilns of the utility model have many advantages, such as that high degree of automation, energy consumption poor efficiency are high, temperature control is balanced, can solve that firing ceramics, foamed ceramic articles production capacity be low, the required artificial more and non-uniform technical problem of furnace chamber temperature.
Description
Technical field
The utility model is related to kiln technical fields, and in particular to a kind of energy-efficient roller kilns, it is suitable for ceramics,
Foamed ceramic high temperature firing kiln.
Background technology
Roller kilns are a kind of equipment for firing ceramics, artificial more required for traditional roller kilns and be single layer structure, production
Energy is low, high energy consumption, being adjusted flexibly property of adaptation is poor, service life is short, output size of product is small, mechanical automation degree is low,
Product stability is poor, temperature difference in kiln is big, is unable to meet production foamed ceramic and stone material and foams the production requirement of big specification.It is existing
There is roller kilns structure single, cumbersome with heat supply heating system inaccurate coordination with material, it is unified not reach performance fusion, production cost
Cost is high, energy resource waste is big.
The utility model patent of Publication No. CN203478953U discloses a kind of leaky wave-prevention microwave roller kiln with roll bar, the roller
Road kiln includes shell and kiln body shell, and ceramic rod is extended transversely through in kiln body, and kiln wall on roller is arranged between ceramic rod and kiln top,
Kiln furnitures are set on roller among kiln wall, is equipped in kiln furnitures and bakes material.The ceramic rod of the roller kilns is single layer structure, can be carried
Foamed ceramic articles limited amount and energy consumption it is higher, working efficiency is low.
Utility model content
Technical problem to be solved in the utility model is：A kind of roller kilns of energy-efficient automation, the roller-way are provided
Kiln can solve fired ceramic production capacity bottom, the required artificial more and non-uniform technical problem of furnace chamber temperature.
In order to solve the above technical problems, the technical solution of the utility model is：A kind of energy-efficient automation roller kilns, packet
Include kiln body, conveying device, heating system, combustion-supporting smoke evacuation system and Distributed Control System；Furnace chamber, the kiln are equipped in the kiln body
Body head and the tail are respectively equipped with feed inlet and discharge port, and the kiln body is from the feed inlet to being sequentially with preheating the discharge port
Area, zoneofoxidation, high temperature firing area and cooling zone；The conveying device include be set to the furnace chamber in, through the kiln body by
Up to three layers of roller conveyor of lower setting；The heating system is used for the heat supply into the kiln body；The combustion-supporting smoke evacuation system
System include be withdrawn into for the fume extraction unit of smoke evacuation, by the heat of the cooling zone preheating zone UTILIZATION OF VESIDUAL HEAT IN unit and
To the pumping temperature reducing unit of the cooling zone slow cooling cooling of exhausting progress back to front；The Distributed Control System is set by center control
Preparation send instruction to regulate and control electronic control actuator via control circuit and controls the heating system, the conveying device and described help
Fire smoke evacuation system.
As an improvement mode, the kiln body includes being built by laying bricks or stones and being made pottery by mullite/cordierite light heat-insulating fire resistant brick
The kiln bottom and Yao Qiang of porcelain cellucotton composition；In the kiln wall top portion ecto-entad successively be equipped with by mullite/cordierite I-shaped brick,
The kiln top that mullite/cordierite refractory plate, ceramic beaverboard, ceramic fiber blanket and ceramic fibre loose wool are formed；The kiln body
Be externally provided with furnace shell, between the kiln wall and furnace shell be equipped with multi-layer ceramics fiberboard, multi-layer ceramics tapetum fibrosum and built by laying bricks or stones mullite/
Cordierite light heat-insulating fire resistant brick, for be driven the material high-temperature resistant silicon carbide/ceramic rod be horizontally through the mullite/
Cordierite light thermal-shield refractory roller aperture brick.
As an improvement mode, the Distributed Control System includes the conveying device, heating system, combustion-supporting smoke evacuation
Induction feedback device, control device, infor-mation-carrying wire road, central control equipment and the electronic control actuator of system.
As an improvement mode, the conveying device includes three layers of high temperature resistant carbon that high-temperature resistant silicon carbide roller stick is paved into
SiClx rollgang, transmission mechanism, decelerating motor；Each layer rollgang is driven by decelerating motor by transmission mechanism,
The transmission mechanism includes transmission shaft.
As an improvement mode, the heating system includes preheating zone, zoneofoxidation and the height set on the kiln body
Microwave thermal radiation spray gun, fuel gas pipeline, oxygen pipeline and the electronic control actuator of warm firing zone；The fuel gas pipeline,
Oxygen pipeline, microwave thermal radiation spray gun are set to the kiln body two side, the gas inlet pipe and oxygen of the microwave thermal radiation spray gun
Gas air inlet pipe is connect with the fuel gas pipeline and oxygen pipeline respectively, and electronic control actuator is set to the microwave thermal radiation spray
On rifle, the combustion gas of the microwave thermal radiation spray gun, oxygen air inflow are regulated and controled, helping for the microwave thermal radiation spray gun is controlled
Oxygen combustion flame size；Side wall above high-temperature resistant silicon carbide rollgang described in upper layer in the kiln body both sides is respectively equipped with one
The microwave thermal radiation spray gun and flame-observing hole of the interlaced setting of group；High-temperature resistant silicon carbide rollgang and middle level described in upper layer
Side wall between the high-temperature resistant silicon carbide rollgang in the kiln body both sides is respectively equipped with the institute of one group of interlaced setting
State microwave thermal radiation spray gun and flame-observing hole；High-temperature resistant silicon carbide rollgang and high-temperature resistant silicon carbide described in lower layer described in middle level are defeated
Send the side wall between roller-way in the kiln body both sides be respectively equipped with one group of interlaced setting the microwave thermal radiation spray gun and
Flame-observing hole；Side wall below high-temperature resistant silicon carbide rollgang described in lower layer in the kiln body both sides is respectively equipped with one group and mutually hands over
The microwave thermal radiation spray gun and flame-observing hole of the setting of mistake setting, arbitrary neighbouring two groups of the microwave thermal radiation spray gun
It is staggered with the flame-observing hole with the microwave thermal radiation spray gun of the flame-observing hole.
As an improvement mode, each adjusting control signal feeds back to heating system by the Distributed Control System,
Control by the electronic control actuator of each heating element of heating system to microwave thermal radiation torch flame size regulates and controls stove
Chamber internal temperature and air content allow furnace chamber internal temperature to form each temperature gradient according to the plan of establishment of technological temperature curve
Section.
As an improvement mode, the inner wall of the kiln body is equipped with several for measuring the kiln body temperature
Thermocouple, the thermocouple, by connection, the temperature value incuded in real time are fed back to described with the Distributed Control System
Distributed Control System sends out the electronics control that instruction regulates and controls the microwave thermal radiation spray gun after Distributed Control System processing
Actuator processed adjusts flame size, to reach temperature control equilibrium purpose.
As an improvement mode, the combustion-supporting smoke evacuation system includes fume extraction unit, UTILIZATION OF VESIDUAL HEAT IN unit and pumping
Temperature reducing unit；The fume extraction unit includes air blower and electronic control actuator, the air inlet of the air blower and the furnace chamber
It is connected, air outlet connects chimney；The UTILIZATION OF VESIDUAL HEAT IN unit includes taking out air-heater, electronic control actuator, thermal cycle ventilation
Control valve and thermal cycle pipeline, the stove that the air inlet for taking out air-heater passes through cooling zone described in the thermal cycle pipeline connection
Chamber, the air outlet for taking out air-heater pass through the furnace chamber of preheating zone described in the thermal cycle pipeline connection, the thermal cycle pipeline
Equipped with the thermal cycle draft control valve and electronic control actuator；The pumping temperature reducing unit includes high temperature draught fan, cooling
Wind pipeline is set to electronic control actuator, the electronic control actuator of the cooling wind pipeline in the high temperature draught fan,
The air inlet of the high temperature draught fan is connected to the suction opening at the top of the cooling zone furnace chamber, and the high temperature draught fan goes out
Air port is connected to the return air inlet at the top of the cooling zone furnace chamber, and the return air inlet is set to the front of the suction opening.
As an improvement mode, further include hot wind cyclone circulation system, the hot wind cyclone circulation system include take out
Wind wind turbine, waste heat conveyance conduit, electronic control actuator, the air inlet of the induced draft fans are connected by the waste heat conveyance conduit
The logical hot wind outlet set on one upper lateral part of the kiln body, the air outlet of the induced draft fans are connected to by the waste heat conveyance conduit
Set on the backheat air port of another side lower part of the kiln body, it is staggered before and after hot wind outlet and backheat air port, the preheating zone, oxidation
Area, high temperature firing area are respectively equipped with the hot wind cyclone circulation system.
As an improvement mode, the device for discharging includes the conveyer that the feed inlet is passed to by the discharge port
Structure, the conveying mechanism include several metal rollers arranged side by side, and the metal roller passes through chain by variable frequency reducer motor
Driving.
Use the technique effect acquired by above-mentioned technical proposal for：
The production for carrying out foamed ceramic in the kiln bodies of the roller kilns using three layers of rollgang, have it is with short production cycle, from
The features such as dynamicization degree is high, energy utilization rate is high, production cost is low, yield is big.The roller kilns pass through preheating zone, zoneofoxidation, height
Warm firing zone and the rational proportion of cooling zone improve the availability of material to play energy-saving effect.The roller kilns
The hot wind whirlwind kiln inner cavity that oxygen burning is reached with combustion-supporting smoke evacuation system collective effect is helped by heating system progress oxygenation
Environment is by the insufficient discarded flue gas of burning caused by preheating zone, zoneofoxidation by high temperature firing area again via combustion-supporting smoke evacuation system
Discharge makes full use of the energy, generation and the discharge of reduction/elimination pernicious gas, reduction to the endangering of environment, environmentally protective.This
Utility model can further improve the comprehensive qualified rate of product, effectively overcome traditional liquid while realizing Fast Sintering
Product problem of Cracking when fuel heating kiln Fast Sintering.
Hot wind cyclone circulation system is devised in the present invention, and the hot wind cyclone circulation system includes exhausting wind
Machine, waste heat conveyance conduit, collecting and distributing control wind pressure control valve, the air inlet of the induced draft fans are connected by the waste heat conveyance conduit
The logical hot wind outlet set on one upper lateral part of the kiln body, the air outlet of the induced draft fans are connected to by the waste heat conveyance conduit
Set on the backheat air port of another side lower part of the kiln body, it is staggered before and after hot wind outlet and backheat air port, induced draft fans can be by kiln
The hot wind of one upper lateral part of body is extracted into the lower part of the kiln body other side by wind conveying pipe road, and then the thermal current in kiln body can rise to again
The top of kiln body forms whirlwind in the inner cavity of kiln body, realizes the cycle of hot wind, keep the temperature in kiln body uniform.In addition, this reality
Distributed Control System is also applied with novel, the Distributed Control System sends instruction via circuit tune by central control equipment
Control electronic control actuator regulation and control heating system, conveying device and combustion-supporting smoke evacuation system, be the fluctuation of furnace chamber internal temperature become smaller, area
Between it is apparent, more stablize, improve the utilization rate of the energy, the qualification rate of product and quality.
Description of the drawings
Fig. 1 is the overall structure diagram of the roller kilns of the utility model；
Fig. 2 is the internal structure schematic diagram of the kiln body of the roller kilns of the utility model；
Fig. 3 is the partial structural diagram of the roller kiln body side surface of the utility model；
In figure, 1- kiln bodies, the preheating zones 101-, 102- zoneofoxidations, 103- high temperature firings area, the cooling zones 104-, 106- chargings
Mouthful, 107- discharge ports, 2- air blowers, 3- pumping air-heaters, 4- high temperature draught fans, 5- chimneys, 61- rollgangs, 62- slows down electric
Machine, 71- fuel gas pipelines, 72- oxygen pipelines, 8- kiln furnitures, 9- microwave thermal radiation spray guns, 91- gas inlet pipes, 92- help oxygen into
Actuator, 15- induced draft fans, 16- return air is controlled electronically in tracheae, 10- flame-observing holes, 11- kilns top, 12- kiln bottoms, 13- kiln walls, 14-
Pipeline.
Specific implementation mode
The utility model is further illustrated with reference to the accompanying drawings and examples.
As Fig. 1 and Fig. 2 jointly shown in, a kind of roller kilns of energy-efficient automation, including kiln body 1, conveying device, heat supply
System, combustion-supporting smoke evacuation system and Distributed Control System.
Be equipped with furnace chamber in kiln body 1,1 front of kiln body is equipped with feed inlet 106, and 1 rear portion of kiln body is equipped with discharge port 107, kiln body 1 from
Feed inlet 106 is to being sequentially with preheating zone 101, zoneofoxidation 102, high temperature firing area 103 and cooling zone between discharge port 107
104.Furnace chamber wall is equipped with high-temperature-resistant thermal-insulation thermal insulation layer, inside furnace chamber heat-resisting material be mullite material or cordierite material or
Pyroceram fibre material.
Kiln body 1 builds the kiln bottom formed with ceramic fiber cotton and Yao Qiang by laying bricks or stones including mullite/cordierite light heat-insulating fire resistant brick
13；It is equipped with successively by mullite/cordierite I-shaped brick, mullite/cordierite refractory plate, ceramics in 13 top ecto-entad of kiln wall
The kiln top 11 that fiberboard, ceramic fiber blanket and ceramic fibre loose wool are formed.Kiln body 1 is externally provided with furnace shell, kiln wall 13 and furnace shell it
Between be equipped with multi-layer ceramics fiberboard, multi-layer ceramics tapetum fibrosum and built mullite/cordierite light heat-insulating fire resistant brick by laying bricks or stones.For passing
It moves the material high-temperature resistant silicon carbide/ceramic rod and is horizontally through the mullite/cordierite light thermal-shield refractory roller aperture brick.
Conveying device includes three layers of high-temperature resistant silicon carbide rollgang 61, the driver for including high-temperature resistant silicon carbide roller stick and being paved into
Structure and decelerating motor；Rollgang 61 runs through entire furnace chamber, and a series of correction means are devised on club, to ensure in life
When producing product, grinding tool is made not shift in kiln inner cavity traffic direction.The roller stick of rollgang 61 is high-temperature resistant silicon carbide roller
Stick or high temperature resistant mullite roller stick or one or more of cordierite roller stick or ceramic rod, each layer of rollgang 61 is by subtracting
Speed motor 62 drives.Each layer of rollgang 61 is driven by decelerating motor 62 by transmission mechanism, and transmission mechanism includes transmission
Axis is equipped with driven helical gear on the drum shaft of rollgang 61, and transmission shaft is equipped with the driving tooth being meshed with driven gear
Wheel, decelerating motor 62 drive transmission shaft rotation.
Kiln body 1 is provided with three layers, and the roller stick for carrying and conveying fire resisting lath, the rollgang 61 are placed at equal intervals
Part in furnace chamber is interior circulating conveyor, and interior circulating conveyor is driven using multigroup spiral beveled wheel, and every group of spiral is oblique
Gear is driven by a cycloidal pin decelerating motor 62, by frequency converter governing speed, each section of transmission group is enable independently to advance, retreat
And back and forth movement.One end of high-temperature resistant silicon carbide roller stick is supported by roller stick cutting ferrule and bearing block mounted in active, the other end
It is placed on passive bearing, the transmission shaft that cycloidal pin decelerating motor 62 drives is rotated by helical gear driven roller stick.Interior circulation conveying
Device makes the push plate being placed on roller stick by predetermined speed from 106 catchment of kiln feed inlet to preheating zone 101, sintering zone, cold
But area 104 moves, and is finally completed firing process.Conveying high temperature resistant kiln furnitures 8 are driven using silicon carbide roller stick, convey high temperature resistant kiln furnitures
Stone material foamed ceramic material is placed on 8 again, conveying high temperature resistant kiln furnitures 8 are made of carbofrax material, can guarantee the high-quality of product.
Kiln body 1 is externally provided with device for discharging, and device for discharging includes the conveying mechanism that feed inlet 106 is passed to by discharge port 107, defeated
It includes several metal rollers arranged side by side to send mechanism, and metal roller passes through chain drive, conveying mechanism by variable frequency reducer motor
The push plate for the loaded material that the discharge port exports is delivered to the loading and unloading region of conveying mechanism, in continuously running for push plate
Cheng Zhong carries out material process up and down, the push plate is then sent to kiln import.
Heating system includes the fuel gas pipeline set on 103 two side of preheating zone 101, zoneofoxidation 102 and high temperature firing area
71, oxygen pipeline 72 and microwave thermal radiation spray gun 9, the gas inlet pipe 91 of microwave thermal radiation spray gun 9 and help gas inlet pipe
92 are respectively connected to fuel gas pipeline 71 and oxygen pipeline 72.Gas inlet pipe 91 presses 7 with oxygen pipeline 71:3 ratio conveys gas
Body.Oxygenation may be implemented by the conveying oxygen of oxygen pipeline 71, oxygen is helped to burn, to keep fuel gas buring abundant, environmental protection and energy saving.It is micro-
Wave heat radiation spray gun is equipped with electronic control actuator 14, and to control the combustion gas of microwave thermal radiation spray gun 9, oxygen air inflow carries out
Regulation and control, control microwave thermal radiation spray gun 9 help oxygen combustion flame size.Microwave thermal radiation spray gun 9 is carbonized with microwave thermal radiation
The operating voltage of silicon burner, automatic ignition device is 220/240V, frequency 50/60HZ, -10/60 DEG C of operating temperature range.Electricity is certainly
Dynamic control solenoid valve, combustion gas and airflow pipe, kiln inlet and outlet, kiln top 11 and furnace chamber inner wall are designed with micro-wave screening material
Layer.
Combustion-supporting smoke evacuation system includes fume extraction unit, UTILIZATION OF VESIDUAL HEAT IN unit and pumping temperature reducing unit, and fume extraction unit includes drum
Wind turbine 2 is connected with electronic control actuator, the air inlet of air blower 2 with furnace chamber, and the air outlet of air blower 2 connects chimney 5.
UTILIZATION OF VESIDUAL HEAT IN unit includes taking out air-heater 3, electronic control actuator, thermal cycle draft control valve and thermal cycle pipeline, takes out hot wind
For the air inlet of machine 3 by the furnace chamber of thermal cycle pipeline connection cooling zone 104, the air outlet for taking out air-heater 3 passes through thermal cycle pipeline
It is connected to the furnace chamber of preheating zone 101.Thermal cycle pipeline is equipped with thermal cycle draft control valve and actuator is controlled electronically.It is evacuated temperature reducing unit
It is set in high temperature draught fan 4 including high temperature draught fan 4, cooling wind pipeline and electronic control actuator, electronic control actuator,
The air inlet of high temperature draught fan 4 be connected to the suction opening at the top of 104 furnace chamber of cooling zone, the air outlet of high temperature draught fan 4 and
Return air inlet connection at the top of 104 furnace chamber of cooling zone, return air inlet are set to the front of suction opening.Two or more high temperature
4 tandem of air-introduced machine is set to 104 top of cooling zone, and high temperature draught fan 4 in cooling zone 104 delayed back to front by exhausting
Cold cooling.
The energy-efficient automation roller kilns further include Distributed Control System, and Distributed Control System includes conveying device, supplies
Hot systems, the induction feedback device of combustion-supporting smoke evacuation system, control device, infor-mation-carrying wire road, central control equipment and electronics
Control actuator.Distributed Control System sends instruction by central control equipment and regulates and controls electronic control actuator via control circuit
Control heating system, conveying device and combustion-supporting smoke evacuation system.
The roller kilns further include Distributed Control System, and Distributed Control System includes power-supply system, heating control system, transmission
Control system and host computer operating system.Distributed Control System controls heating system and combustion-supporting smoke evacuation system by control circuit.
The survey of heating control system, temperature controlling point are in 1 top of kiln body and side, and using thermocouple temperature measurement, stove is goed deep into thermocouple test side
Thorax is connected by compensating wire with control element close to the top and side of material, the temperature feedback that thermocouple is measured to temperature
Instrument is controlled, the temperature of setting is compared and enlarged with measured value the current signal for being converted to 4mA~20mA in temperature controller, and output is to electricity
Force regulator and PLC, followed by power regulator and PLC adjust the conducting of thyristor according to the size of temperature controller input signal
The turn-on time and microwave power supply switch motion of angle size or thyristor, to reach the size of adjusting heater element power and open
It closes, changes the height of the warm area temperature, and the temperature value feeds back to temperature controller through thermocouple, constitutes the closed-loop control of the warm area
System reaches temperature Pingdu.Due to using advanced control technology and cold end electronic compensation circuitry in temperature controller, have
Higher accuracy of temperature control.
Distributed Control System carries out kiln and automates temperature adjustment, and each adjusting control signal is fed back to heating system, is passed through
Control of the electronic control actuator of each heating element of heating system to microwave thermal radiation torch flame size regulates and controls in furnace chamber
Portion's temperature and air content allow furnace chamber internal temperature to form the area of each temperature gradient according to the plan of establishment of technological temperature curve
Between.
Distributed Control System setting is in specific centralized control position, control heating system and combustion-supporting smoke evacuation system.Combustion-supporting row
Cigarette system gives wind air quantity electromagnetic valve control point in 1 liang of outside of kiln body, and the control of air draft air quantity is by changing smoke exhaust fan
Working frequency frequency converter.
As shown in figure 3, side wall of the top of upper layer rollgang 61 in 1 both sides of kiln body be respectively equipped with one group it is spaced micro-
Wave heat radiation spray gun 9 and flame-observing hole 10；Upper layer high-temperature resistant silicon carbide rollgang 61 and middle level high-temperature resistant silicon carbide rollgang
Side wall between 61 in 1 both sides of kiln body is respectively equipped with one group of spaced microwave thermal radiation spray gun 9 and flame-observing hole 10；Middle level is resistance to
Side wall between high-temperature carborundum rollgang 61 and lower layer's high-temperature resistant silicon carbide rollgang 61 in 1 both sides of kiln body is respectively equipped with
One group of spaced microwave thermal radiation spray gun 9 and flame-observing hole 10；61 lower section of lower layer's high-temperature resistant silicon carbide rollgang is in kiln body 1
The side wall of both sides is respectively equipped with one group of spaced microwave thermal radiation spray gun 9 and flame-observing hole 10.Arbitrary neighbouring two groups
The microwave thermal radiation spray gun 9 of microwave thermal radiation spray gun 9 and flame-observing hole 10 is staggered with flame-observing hole 10.Spaced high warm
Radiation spray gun reduces gas consumption usage amount, and yield is also accordingly improved while energy conservation and environmental protection.Unilateral spray gun interlayer
It is uniformly dislocatedly distributed in triangle disposition, keeps material to be processed antipyretic evenly in the heating period, product quality is more preferable.
The inner wall of kiln body 1 is equipped with several thermocouples for being used to measure temperature in the kiln body 1, thermocouple and the collection
Control system is dissipated by connection, and the temperature value that Distributed Control System is fed back according to thermocouple is controlled by autocontrol valve 14
Microwave thermal radiation spray gun 9 processed heats, and the temperature value incuded in real time is fed back to Distributed Control System by thermocouple, by described collecting and distributing
The adjustment flame size of electronic control actuator 14 that instruction regulates and controls the microwave thermal radiation spray gun 9 is sent out after control system processing,
To reach temperature control equilibrium purpose.
The tunnel oven further includes hot wind cyclone circulation system, and hot wind cyclone circulation system includes induced draft fans, induced draft fans
Air inlet the hot wind outlet of 1 one upper lateral part of kiln body is communicated in by intake stack, the air outlet of induced draft fans passes through return air
Pipeline is communicated in the backheat air port of 1 another side lower part of the kiln body, is staggered before and after hot wind outlet and backheat air port, exhausting wind
The hot wind of 1 one upper lateral part of kiln body can be extracted into the lower part of 1 other side of kiln body by machine by wind conveying pipe road, then the hot gas in kiln body 1
Stream can rise to the top of kiln body 1 again, form whirlwind in the inner cavity of kiln body 1, realize the cycle of hot wind, make the temperature in kiln body 1
Degree is uniform, improves the utilization rate of the energy and the qualification rate of product.Preheating zone 101, zoneofoxidation 102, high temperature firing area 103 are distinguished
Equipped with above-mentioned hot wind cyclone circulation system.
The utility model realizes the Uniformity of Temperature Field of ± 3 DEG C of the holding in 3000mm × 1200mm sintering section, and
Temperature uniformity of the simple microwave heating kiln and electric kiln in same region is generally in ± 5 DEG C or even bigger.This reality
With the novel consistency of performance for being effectively improved sintered products, and then improve the consistency of downstream product functional parameter.To burn
For tying foamed ceramic, runs each performance parameter index and be all significantly improved.The utility model is realizing Fast Sintering
While, the comprehensive qualified rate of product is can further improve, when effectively overcoming conventional liquid fuel heating kiln Fast Sintering
Product problem of Cracking.By taking sintered and foamed ceramics as an example, the utility model can carry the comprehensive qualified rate of product by original 90%
98% or more is risen to, and then directly improves the production capacity of single device.It can make the flexural strength of product can be by using the tunnel oven
2.0 original~2.5MPa is promoted to 2.8MPa or more, and the compression strength of product can be by original 6.5MPa promotions to 7.0MPa
More than, improve the performance of product.
The roller kilns belong to continous way kiln, and foamed ceramic is burnt into three layers of roller kilns, and inner wall surface smears heat in kiln
Radiation paint reduces energy consumption, brief period, and high degree of automation, production cost is low, and yield is big, may be implemented to mass produce.
In addition, the utility model is compared with prior art, by the rational proportion in each section, improve the availability of material from
And play energy-saving effect, while the destruction of environment be also reduced to accordingly it is minimum.This utility model is in applicating energy-saving environment-friendly fuel
Energy consumption usage amount is decreased while natural gas, yield is also accordingly improved.The three-decker of the tunnel oven can save
Basic material (such as steel construction, heat insulation foam and refractory brick) and kiln furnitures (kiln car) are saved, manufacturing cost can be effectively reduced.
The tunnel oven can be used following table to show relative to the raising of the technical performance of original tunnel kiln：
In short, the roller way kiln of the utility model is using microwave and electric Hybrid Heating, kiln is easy to operate, easy care, sintering
Material quality height, energy-efficient microwave and electric Hybrid Heating high temperature sintering, and in same heating interval, existing microwave heating
Also there is electrical heating, heating speed is fast, is heated evenly in furnace chamber, material processing quality is good.
Claims (10)
1. a kind of energy-efficient automation roller kilns, which is characterized in that including：Including kiln body, conveying device, heat supply system
System, combustion-supporting smoke evacuation system, Distributed Control System and device for discharging；Furnace chamber is equipped in the kiln body, the kiln body head and the tail are respectively
Equipped with feed inlet and discharge port, the kiln body from the feed inlet to be sequentially with the discharge port preheating zone, zoneofoxidation,
High temperature firing area and cooling zone；The conveying device includes being set in the furnace chamber, is from top to bottom arranged through the kiln body
Three layers of roller conveyor；The heating system is used for the heat supply into the kiln body；The combustion-supporting smoke evacuation system includes being used for
The fume extraction unit of smoke evacuation, the UTILIZATION OF VESIDUAL HEAT IN unit that the heat of the cooling zone is withdrawn into the preheating zone and to cooling zone by
The pumping temperature reducing unit of the slow cooling cooling of exhausting progress forward afterwards；The Distributed Control System is sent by central control equipment and is instructed
Regulate and control electronic control actuator via control circuit and controls the heating system, the conveying device and the combustion-supporting smoke evacuation system
System；The push plate for the loaded material that the discharge port exports is delivered to loading and unloading region by the device for discharging, in the continuous of push plate
In operation process, material process up and down is carried out, the push plate is then sent to kiln import.
2. energy-efficient automation roller kilns as described in claim 1, which is characterized in that the kiln body includes mullite/violet
Green stone light heat-insulating fire resistant brick builds the kiln bottom formed with ceramic fiber cotton and Yao Qiang by laying bricks or stones；In kiln wall top portion, ecto-entad is successively
Equipped with fine by mullite/cordierite I-shaped brick, mullite/cordierite refractory plate, ceramic beaverboard, ceramic fiber blanket and ceramics
Tie up the kiln top that loose wool is formed；The kiln body is externally provided with furnace shell, and multi-layer ceramics fiberboard, multilayer are equipped between the kiln wall and furnace shell
Ceramic fiber blanket has simultaneously built mullite/cordierite light heat-insulating fire resistant brick by laying bricks or stones, for being driven the material high-temperature resistant silicon carbide/pottery
Porcelain roller bar is horizontally through the mullite/cordierite light thermal-shield refractory roller aperture brick.
3. energy-efficient automation roller kilns as described in claim 1, which is characterized in that the Distributed Control System includes institute
State conveying device, heating system, the induction feedback device of combustion-supporting smoke evacuation system, control device, infor-mation-carrying wire road, center control
Equipment and electronic control actuator.
4. energy-efficient automation roller kilns as claimed in claim 2, which is characterized in that the conveying device includes high temperature resistant
Three layers of high-temperature resistant silicon carbide rollgang, transmission mechanism, decelerating motor that silicon carbide roller stick is paved into；Each layer rollgang
It is driven by transmission mechanism by decelerating motor, the transmission mechanism includes transmission shaft.
5. energy-efficient automation roller kilns as claimed in claim 4, which is characterized in that the heating system includes being set to institute
State microwave thermal radiation spray gun, fuel gas pipeline, oxygen pipeline and the electronics in the preheating zone of kiln body, zoneofoxidation and high temperature firing area
Control actuator；The fuel gas pipeline, oxygen pipeline, microwave thermal radiation spray gun are set to the kiln body two side, the microwave
The gas inlet pipe and oxygen intake pipe of heat radiation spray gun are connect with the fuel gas pipeline and oxygen pipeline respectively, and electronic control is held
Row device is set on the microwave thermal radiation spray gun, is regulated and controled to the combustion gas of the microwave thermal radiation spray gun, oxygen air inflow,
Control the microwave thermal radiation spray gun helps oxygen combustion flame size；In institute above high-temperature resistant silicon carbide rollgang described in upper layer
The side wall for stating kiln body both sides is respectively equipped with the microwave thermal radiation spray gun and flame-observing hole of one group of interlaced setting；Described in upper layer
In the side wall of the kiln body both sides point between high-temperature resistant silicon carbide rollgang described in high-temperature resistant silicon carbide rollgang and middle level
Not She You one group of interlaced setting the microwave thermal radiation spray gun and flame-observing hole；High-temperature resistant silicon carbide conveying roller described in middle level
Side wall between high-temperature resistant silicon carbide rollgang described in road and lower layer in the kiln body both sides be respectively equipped with one group it is interlaced
The microwave thermal radiation spray gun and flame-observing hole being arranged；In the kiln body two below high-temperature resistant silicon carbide rollgang described in lower layer
The side wall of side is respectively equipped with the microwave thermal radiation spray gun and flame-observing hole of the setting of one group of interlaced setting, arbitrarily phase up and down
The microwave thermal radiation spray gun of adjacent two groups of the microwave thermal radiation spray gun and the flame-observing hole is staggeredly set with the flame-observing hole
It sets.
6. energy-efficient automation roller kilns as claimed in claim 5, which is characterized in that the Distributed Control System will be each
Adjusting control signal feeds back to heating system, by the electronic control actuator of each heating element of heating system to microwave thermal spoke
The control of torch flame size is penetrated, regulates and controls furnace chamber internal temperature and air content, furnace chamber internal temperature is allowed to write music according to process warm
The plan of establishment of line forms the section of each temperature gradient.
7. energy-efficient automation roller kilns as claimed in claim 6, which is characterized in that if the inner wall of the kiln body is equipped with
The dry thermocouple for measuring the kiln body temperature, the thermocouple and the Distributed Control System by connection simultaneously
The temperature value incuded in real time is fed back into the Distributed Control System, sending out instruction after Distributed Control System processing adjusts
The electronic control actuator adjustment flame size for controlling the microwave thermal radiation spray gun, to reach temperature control equilibrium purpose.
8. energy-efficient automation roller kilns as described in claim 1, which is characterized in that the combustion-supporting smoke evacuation system includes row
Cigarette unit, UTILIZATION OF VESIDUAL HEAT IN unit and pumping temperature reducing unit；The fume extraction unit includes air blower and electronic control actuator, institute
The air inlet for stating air blower is connected with the furnace chamber, and air outlet connects chimney；The UTILIZATION OF VESIDUAL HEAT IN unit include take out air-heater,
Actuator, thermal cycle draft control valve and thermal cycle pipeline is controlled electronically, the air inlet for taking out air-heater is followed by the heat
The furnace chamber of cooling zone described in ring pipeline connection, the air outlet for taking out air-heater described in the thermal cycle pipeline connection by preheating
The furnace chamber in area, the thermal cycle pipeline are equipped with the thermal cycle draft control valve and electronic control actuator；The pumping cooling
Unit includes high temperature draught fan, cooling wind pipeline and electronic control actuator, the electronic control actuator of the cooling wind pipeline
It is set in the high temperature draught fan, the air inlet of the high temperature draught fan and the suction opening at the top of the cooling zone furnace chamber
Connection, the air outlet of the high temperature draught fan are connected to the return air inlet at the top of the cooling zone furnace chamber, and the return air inlet is set
In the front of the suction opening.
9. energy-efficient automation roller kilns as described in claim 1, which is characterized in that further include hot wind cyclone circulation system
System, the hot wind cyclone circulation system include induced draft fans, waste heat conveyance conduit, electronic control actuator, the induced draft fans
Air inlet the hot wind outlet of one upper lateral part of the kiln body is communicated in by the waste heat conveyance conduit, the induced draft fans
Air outlet is communicated in the backheat air port of another side lower part of the kiln body, hot wind outlet and backheat by the waste heat conveyance conduit
It is staggered before and after air port, the preheating zone, zoneofoxidation, high temperature firing area are respectively equipped with the hot wind cyclone circulation system.
10. energy-efficient automation roller kilns as described in claim 1, which is characterized in that the device for discharging includes by institute
The conveying mechanism that discharge port passes to the feed inlet is stated, the conveying mechanism includes several metal rollers arranged side by side, described
Metal roller passes through chain drive by variable frequency reducer motor.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721433814.XU CN207649334U (en) | 2017-10-31 | 2017-10-31 | A kind of energy-efficient automation roller kilns |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721433814.XU CN207649334U (en) | 2017-10-31 | 2017-10-31 | A kind of energy-efficient automation roller kilns |
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| CN207649334U true CN207649334U (en) | 2018-07-24 |
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ID=62884087
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109341333A (en) * | 2018-10-16 | 2019-02-15 | 广东科达洁能股份有限公司 | A kind of big specification foamed ceramic roller kilns device |
| CN113566595A (en) * | 2021-07-12 | 2021-10-29 | 广东雅诚德实业有限公司 | Preparation method of waste heat recovery device |
-
2017
- 2017-10-31 CN CN201721433814.XU patent/CN207649334U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109341333A (en) * | 2018-10-16 | 2019-02-15 | 广东科达洁能股份有限公司 | A kind of big specification foamed ceramic roller kilns device |
| CN109341333B (en) * | 2018-10-16 | 2024-02-09 | 佛山市科达机电有限公司 | Roller kiln device for large-size foamed ceramics |
| CN113566595A (en) * | 2021-07-12 | 2021-10-29 | 广东雅诚德实业有限公司 | Preparation method of waste heat recovery device |
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