CN201787811U - Energy-saving sectional type hot air recirculation furnace - Google Patents
Energy-saving sectional type hot air recirculation furnace Download PDFInfo
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- CN201787811U CN201787811U CN2010201827343U CN201020182734U CN201787811U CN 201787811 U CN201787811 U CN 201787811U CN 2010201827343 U CN2010201827343 U CN 2010201827343U CN 201020182734 U CN201020182734 U CN 201020182734U CN 201787811 U CN201787811 U CN 201787811U
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Abstract
An energy-saving sectional type hot air recirculation furnace solves the problems of the traditional carrier roasting furnace that the furnace atmosphere is not controlled easily, the operating parameters can not be adjusted appropriately and the carrier quality can not be adjusted and controlled effectively according to different products, and the energy consumption and the manufacturing cost are high. The energy-saving sectional type recirculation furnace is characterized in that the furnace body adopts a zonal structure; and each zone is divided into a material heating zone and a gas heating zone that are independent, wherein a horn-shaped air housing (1) is arranged at the top of the material heating zone, an electric heater (5) is arranged in the gas heating zone, and an air duct (6) is arranged at the top of the electric heater and is communicated with the horn-shaped air housing (1) through a blower (7) and an air duct (8). By virtue of the energy-saving sectional type hot air recirculation furnace, set roasting atmospheres for different carriers can be provided, the heating uniformity of material and the quality of products can be improved, the energy consumption of products can be reduced greatly, and the energy-saving sectional type hot air recirculation furnace can be extensively applied to roasting of various hydrogenant catalyst carriers.
Description
One, technical field
The utility model belongs to the baked for producing equipment of producing chemical catalyst, relates in particular to a kind of raising catalyst carrier technical indicator, reduces catalyst carrier roasting specific energy consumption, the segmented hot air circulation electrical heating guipure kiln of save catalyst production cost.
Two, background technology
The mature equipment that the catalyst carrier roasting of present domestic most of producer is adopted has: 1, the dynamic roasting rotary furnace of upset, and advantage is that material is heated evenly, and shortcoming is that temperature control precision is not high, and the material fragmentation is many, and yield is low.2, static roasting mesh-belt kiln, advantage is the temperature control precision height, material is broken few, the yield height, shortcoming is that the bed of material has a fixed difference difference.3, static roasting roller kilns, advantage is the temperature control precision height, material is broken few, the yield height, shortcoming is that the bed of material has a fixed difference difference, and auxiliary devices such as loading and unloading material carriage return are many, and maintenance is bigger than normal.Domestic Catalyst Production producer adopts continuous guipure roaster substantially, be characterized in that disposal ability is big, the carrier wearing and tearing are little, temperature can realize automatic control, but owing to adopt the continuous guipure roasting technology that is communicated with, be difficult to satisfy the requirement of different catalysts to carrier specific surface, pore volume and pore size distribution " customized ", the useless hole that its micropore of the carrier of preparation is formed is on the high side, and pore size distribution is not dispersed and is concentrated, the considerable part active component has entered in the unapproachable duct of reactant behind the carried metal, causes activity of such catalysts undesirable.
Three, summary of the invention
The purpose of this utility model is just to provide a kind of raising catalyst roasting single device disposal ability, improve the catalyst carrier roasting condition, stable, as to improve catalyst carrier every technical indicator, reduce catalyst carrier roasting specific energy consumption, the segmented hot air circulation electrical heating guipure kiln of save catalyst production cost.
The technical scheme that its technical problem that solves the utility model adopts is: it is made up of kiln body, guipure, transmission system, ventilating system, heating and temperature element, several parts of control system.Body of heater adopts partitioned organization, adopt corrosion resistant plate and heat-insulation layer to separate between every district, and isolate with the stove external space, whenever divide into the material thermal treatment zone, three separate portions in the gas thermal treatment zone and interior circulating air air channel, separate by refractory plate between three districts, top, the described material thermal treatment zone is provided with tubaeform fan housing, the middle part is provided with the stainless steel flanging guipure of the carrying roasted product that is carried by the fish skeletal support of corrosion resistant plate making, refractory plate between the bottom and the gas thermal treatment zone is provided with air door, and horizontal level is equipped with thermocouple in the middle part of a side kiln wall in every district, and kiln also is provided with the pipeline of material thermal treatment zone row's decomposition gas within the walls; Described gas is provided with electric heater in the thermal treatment zone, and its top is provided with the air channel and communicates with the tubaeform fan housing at top, the material thermal treatment zone by blower fan and air channel.Circulating air air channel in also being provided with on the kiln body is installed in the inboard corrosion resistant plate of kiln body, and a side is installed circulation air path and 1 the additional fresh air step reach of Φ 200mm airduct in 2 rectangles.Seal with stainless plate between guipure both sides, bottom and body of heater, respectively be provided with a cover guipure bias correcting mechanism at kiln hood and kiln tail, and be provided with displacement transducer in the both sides of guipure, by the PLC programmable control system correction motor is sent operating instruction, and respectively install one at guipure return phase burner, stove tail and overlap the guipure Rapping apparatus, counterweight 20Kg, it is adjustable that frequency per minute 1-5 time is beaten in shake.
The beneficial effects of the utility model are, because each stage of carrier roasting is divided into the interval of several independent relative closures, and it is the purpose independent regulation that the adjusting of each interval temperature control, ventilation, the adjusting of capacity, the control of the time of staying all reach process conditions with this stage roasting process control.Because air is heated in the gas thermal treatment zone, the kiln top is provided with tubaeform fan housing simultaneously, replenishes fresh air by the body of heater preheating, greatly satisfies enough ventilations, makes material and hot-air that enough heat transfer intensities be arranged, and shortens roasting time, energy efficient.Take the measure of relative sealing to handle between guipure and body of heater, each interval, prevent the air-flow short circuit, improve calcination atmosphere, guipure adds rib to be handled, and increases the useful load of material in the unit are.Both reducing product energy consumption, when having improved product yield again, product quality is improved significantly.
Four, description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the utility model list district cross section structure schematic diagram;
Fig. 2 is the utility model unit district side-looking cross-sectional view;
Fig. 3 is the utility model overall structure front view;
Fig. 4 is the utility model overall structure vertical view.
Among the figure: 1 is tubaeform fan housing, and 2 is guipure, and 3 is refractory plate, and 4 is air door, and 5 is heater, and 6 is the air channel, and 7 is blower fan, and 8 is the air channel, 9 pipelines for row's decomposition gas, and 10 is interior circulation airduct, 11 for replenishing fresh air step reach airduct.
Five, the specific embodiment
To undertake the construction of one 26 meters segmented hot air circulation electrical heating guipure kiln is example, kiln is high 3.50 meters, kiln body width is 2.9 meters, 21 meters of kiln owner's body steel construction total lengths, material bed guipure center is high 150 meters, and body of heater metal framework 6mm steel plate, outside 6mm steel plate make to strengthen gusset, inwall adopts the 3mm corrosion resistant plate, adopts 250mm aluminium silicate wool felt, 25mm high alumina needle punched blanket, 50mm1000 ℃ ceramic beaverboard insulation around body of heater in the furnace binding and between the 3mm corrosion resistant plate.Full stove is divided into 7 districts, and 3 meters/district, the on-the-spot bolt of each unit internode connects.Adopt corrosion resistant plate and heat-insulation layer to separate between the every district of body of heater, and isolate with the stove external space.Whenever divide into the material thermal treatment zone, three separate portions in the gas thermal treatment zone and interior circulating air air channel, separate by refractory plate 3 between three districts, top, the described material thermal treatment zone is provided with tubaeform fan housing 1, the middle part is provided with the stainless steel flanging guipure 2 of the carrying roasted product that is carried by the holder of roller rod, refractory plate 3 between the bottom and the gas thermal treatment zone has air door 4, and horizontal level is equipped with thermocouple in the middle part of a side kiln wall in every district, and kiln also is provided with the pipeline 9 of material thermal treatment zone row's decomposition gas within the walls; Described gas is provided with electric heater 5 in the thermal treatment zone, and its top is provided with air channel 6 and communicates with the tubaeform fan housing 1 at top, the material thermal treatment zone by blower fan 7 and air channel 8.Circulating air air channel in also being provided with on the kiln body is installed in the inboard corrosion resistant plate of kiln body, and a side is installed circulation air path and 1 the additional fresh air step reach of Φ 200mm airduct in 2 rectangles.Air-flow part by material, guipure in the material thermal treatment zone is drained from exhaust body pipeline 9 by blower fan, most of air door 4 that is provided with on by refractory plate 3 through circulating fan is sent into the gas thermal treatment zone, after the fresh dried air that replenishes mixes, heated the back again by electric heater 5 and evenly send into the material thermal treatment zone, circulation and so forth from the top through tubaeform fan housing 1.The fresh dried air that replenishes utilizes the waste heat preheating of heat-insulation layer after circulating fan is sent into the gas thermal treatment zone at the top, motor regulated valve is installed in the every district of fresh air line inlet, exhaust line every district outlet, controls the air inlet of every district, capacity automatically.Every circulating fan is installed frequency converter and is independently controlled air quantity and kiln temperature.Seal with corrosion resistant plate between guipure both sides, 2 bottom and body of heater, respectively be provided with a cover guipure bias correcting mechanism at kiln hood and kiln tail, and be provided with displacement transducer in the both sides of guipure 2, by the PLC programmable control system correction motor is sent operating instruction, and respectively install one at guipure 2 return phase burners, stove tail and overlap the guipure Rapping apparatus, counterweight 20Kg, it is adjustable that frequency per minute 1-5 time is beaten in shake.Guipure passes and adopts the motorised roll barrel structure, and feed end is passive roller, and discharge end is an active roll tube, chooses 304 materials and makes 1.8 meters of length, 1.2 meters of diameter of phi.Active roll tube adopts the pressure welding reticulate pattern to handle reticulate pattern thickness 3mm.The axle two ends are installed on the strainer of adjustable stroke, adopt the counter weight type auto-tensioning.The inside and outside guipure of stove supports the fish-bone frame support skid that adopts δ=10mm 304 material corrosion resistant plates to make.Driving motor adopts the SEW motor, power: 4Kw, and frequency converter is regulated the guipure speed of service, and motor and active roll tube adopt chain drive.Heating element heater adopts air duct type electric heater (80KW), the specified heating power 520kw of this kiln, normal operate power 200kw.Temperature element is a calibration K type thermocouple, 19.Wherein 6 are the control idol, and 13 for detecting idol.Thermocouple is inserted in the stove by the side wall level, and the insertion point is positioned at the middle part in every district.
The whole piece kiln adopts computer+PLC system, can control electrical heating temperature, pressure, flow, the guipure speed of service and rotation speed of fan automatically, can control temperature in the stove automatically by the heat treatment cycle curve requirement.Have failure warning system and unusual correcting system.
Furnace temperature control system makes the master control unit by Siemens PLC C I/O A/D processing unit, can set multistage process curves such as programming rate, holding temperature and temperature retention time in advance respectively at active station, just can control automatically and operate whole heat treatment, and the theoretical value of displays temperature and measured value Siemens PLC C are as performance element, input, output, warning etc. are focused on, realize controlling efficiently, reliably function.
Full kiln has 1 of air exhauster, 3KW, 7 of hot air circulation blowers, 7.5KW.Regulate and stablize its flow by frequency converter, blower fan control is furnished with breaker DZX4-25/3 type, contactor CJX4-1810d type, heat continue 3UA59 control and protection.
Transmission is totally 1 motor 4KW, carries out frequency control by a frequency converter (5.5KW).(PLC) carries out interlocked control blower fan and driving motor by Programmable Logic Controller, and its duty can be operated and show to the enterprising news that work of PLC and computer on computers, sets up control button to carry out reserve on switch board in addition and operates firmly.
Turn-around by photoelectricity, be input to PLC near the detection of switch and control output.
Claims (3)
1. energy-saving segmented recirculation furnace, it is by the kiln body, guipure, transmission system, ventilating system, heating and temperature element, several parts of control system are formed, it is characterized in that: body of heater adopts partitioned organization, adopt corrosion resistant plate and heat-insulation layer to separate between every district, and isolate with the stove external space, whenever divide into the material thermal treatment zone, three separate portions in the gas thermal treatment zone and interior circulating air air channel, separate by refractory plate (3) between three districts, top, the described material thermal treatment zone is provided with tubaeform fan housing (1), the middle part is provided with the stainless steel flanging guipure (2) of the carrying roasted product that is carried by the fish skeletal support of corrosion resistant plate making, refractory plate (3) between the bottom and the gas thermal treatment zone has air door (4), and horizontal level is equipped with thermocouple in the middle part of a side kiln wall in every district, and kiln also is provided with the pipeline (9) of material thermal treatment zone row's decomposition gas within the walls; Electric heater (5) is set in the described gas thermal treatment zone, and its top is provided with air channel (6) and communicates with the tubaeform fan housing (1) at top, the material thermal treatment zone by circulating fan (7) and air channel (8).
2. energy-saving segmented recirculation furnace according to claim 1, it is characterized in that: circulating air air channel on the kiln body, also being provided with, be installed in the inboard corrosion resistant plate of kiln body, guipure bottom one side is equipped with circulation air path (10) and 1 the additional fresh air step reach of Φ 200mm airduct (11) in 2 rectangles.
3. energy-saving segmented recirculation furnace according to claim 1 and 2, it is characterized in that: seal with corrosion resistant plate between guipure (2) both sides, bottom and body of heater, respectively be provided with a cover guipure bias correcting mechanism at kiln hood and kiln tail, and be provided with displacement transducer in the both sides of guipure (2), by the PLC programmable control system correction motor is sent operating instruction, and respectively install one at guipure (2) return phase burner, stove tail and overlap the guipure Rapping apparatus, counterweight 20Kg, it is adjustable that frequency per minute 1-5 time is beaten in shake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201827343U CN201787811U (en) | 2010-04-30 | 2010-04-30 | Energy-saving sectional type hot air recirculation furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201827343U CN201787811U (en) | 2010-04-30 | 2010-04-30 | Energy-saving sectional type hot air recirculation furnace |
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| Publication Number | Publication Date |
|---|---|
| CN201787811U true CN201787811U (en) | 2011-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201827343U Expired - Fee Related CN201787811U (en) | 2010-04-30 | 2010-04-30 | Energy-saving sectional type hot air recirculation furnace |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499208A (en) * | 2013-09-25 | 2014-01-08 | 天津市金桥焊材集团有限公司 | Welding rod baking production line capable of recycling heat energy |
| CN104315843A (en) * | 2014-10-28 | 2015-01-28 | 黄冈市华窑中瑞窑炉有限公司 | Vertical recycling, drying and calcining furnace for SCR (selective catalytic reduction) denitration catalysts |
| CN104858403A (en) * | 2015-05-27 | 2015-08-26 | 法格霭德兰汽车配件〔昆山）有限公司 | Steering knuckle casting die heating furnace |
| CN105170197A (en) * | 2015-10-09 | 2015-12-23 | 山东奥福环保科技股份有限公司 | Catalyst calcinating method and calcinating equipment |
| CN107543659A (en) * | 2016-06-28 | 2018-01-05 | 五冶集团上海有限公司 | Vertical annealing furnace airtightness testing method |
| CN109576486A (en) * | 2018-12-18 | 2019-04-05 | 广西柳州银海铝业股份有限公司 | Heat-treatment furnace bulk temperature control method |
-
2010
- 2010-04-30 CN CN2010201827343U patent/CN201787811U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499208A (en) * | 2013-09-25 | 2014-01-08 | 天津市金桥焊材集团有限公司 | Welding rod baking production line capable of recycling heat energy |
| CN103499208B (en) * | 2013-09-25 | 2016-06-08 | 天津市金桥焊材集团有限公司 | A kind of by the welding rod baking production line of heat energy recycling |
| CN104315843A (en) * | 2014-10-28 | 2015-01-28 | 黄冈市华窑中瑞窑炉有限公司 | Vertical recycling, drying and calcining furnace for SCR (selective catalytic reduction) denitration catalysts |
| CN104858403A (en) * | 2015-05-27 | 2015-08-26 | 法格霭德兰汽车配件〔昆山）有限公司 | Steering knuckle casting die heating furnace |
| CN105170197A (en) * | 2015-10-09 | 2015-12-23 | 山东奥福环保科技股份有限公司 | Catalyst calcinating method and calcinating equipment |
| CN107543659A (en) * | 2016-06-28 | 2018-01-05 | 五冶集团上海有限公司 | Vertical annealing furnace airtightness testing method |
| CN109576486A (en) * | 2018-12-18 | 2019-04-05 | 广西柳州银海铝业股份有限公司 | Heat-treatment furnace bulk temperature control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20120430 |