CN105823333A - Segmented type tunnel kiln - Google Patents

Segmented type tunnel kiln Download PDF

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Publication number
CN105823333A
CN105823333A CN201610350474.8A CN201610350474A CN105823333A CN 105823333 A CN105823333 A CN 105823333A CN 201610350474 A CN201610350474 A CN 201610350474A CN 105823333 A CN105823333 A CN 105823333A
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CN
China
Prior art keywords
kiln
type tunnel
sectional type
cooling
tunnel kiln
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610350474.8A
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Chinese (zh)
Inventor
王景甫
赵传亮
任山祥
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Beijing University of Technology
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Beijing University of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Beijing University of Technology filed Critical Beijing University of Technology
Priority to CN201610350474.8A priority Critical patent/CN105823333A/en
Publication of CN105823333A publication Critical patent/CN105823333A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/02Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces
    • F27B9/028Multi-chamber type furnaces
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/36Arrangements of heating devices

Abstract

The invention provides a segmented type tunnel kiln. According to the segmented type tunnel kiln, with a mode of adding a segmenting device and building an air channel in a kiln car, an air flow is blocked from flowing at the upper part of a kiln body and is forced to circulate in the air channel in the kiln car, so that the heat exchange strength of air and a product is greatly strengthened, the temperature difference in cross section of the product is reduced, the heating speed and the yield are increased, the energy consumption is saved, the heating quality of the product is improved, and the qualified rate of the product is increased; the segmented type tunnel kiln is equipped with a burner, and the burner can be fully mixed and burnt with hot air brought by cooling; and the segmented type tunnel kiln is also equipped with measuring and controlling equipment, so that purposes of monitoring the running state in the kiln, and thermal parameters in the kiln are controlled with high accuracy are reached. With matching use with external tracks of the kiln, a car entering and exiting mechanism and the like, the segmented type tunnel kiln is reasonable in design, stable in running, long in service life, high in yield and good in quality and in addition, is capable of guaranteeing smooth running only being used matching with the external tracks of the kiln, the car entering and exiting mechanism and the like.

Description

Sectional type tunnel kiln
Technical field
The present invention relates to a kind of sectional type tunnel kiln, be particularly applied to the Thermal Equipment that goods are heated of the industries such as refractory material, building materials, pottery.
Background technology
The most frequently used firing equipments such as refractory material, building materials, ceramic industry are tunnel cave, due to thermal current bottom horizontal flow sheet in tunnel cave, in preheating zone, the heat smoke heating product come from clinkering zone, but, the principle floated according to hot gas, a large amount of hot gas easily flow at kiln body upper space, heating is in the goods on kiln car top, and is in the goods of kiln car bottom, owing to the steam scale of construction is little, the low firing rate of temperature is slow, cause preheating zone section upper and lower temperature difference big, affect control of industrial furnace home, increase energy consumption;And in cooling zone, owing to kiln body upper space is big, gas, from upper flow, affects rate of cooling and cooling uniformity, cause rate of cooling slow, yield poorly.In order to overcome drawbacks described above, using and increase air curtain, add the measures such as air blast agitation, not only effect is undesirable, and consumes a large amount of electric power, increases equipment investment, and using effect is difficult to meet technological requirement, deficiency in economic performance.
Sectional type tunnel kiln is not with shuttle kiln frontal region, although shuttle kiln kiln temperature is uniform, but will experience intensification at the kiln body refractory material each heating cycle of goods, temperature-fall period, service life of kiln body is short, and high fume temperature, the thermal efficiency is low, production capacity is little, and each section of sectional type tunnel kiln all works at metastable temperature section, fume afterheat can abundant heating product, and the heat of goods can fully heat exchange, heating combustion air, saves fuel consumption.And kiln body is owing to working in metastable temperature range, temperature fluctuation is little, and service life of kiln body is long.Sectional type tunnel kiln another outstanding advantages compared with shuttle kiln is that production capacity is big, and equivalent production capacity reduced investment, operating cost is low.
Summary of the invention
It is an object of the invention to provide set of Thermal Equipment, this Thermal Equipment is widely used in the industries such as refractory material, building materials, pottery, this sectional type tunnel kiln not only has operating feature and the mode of tunnel cave, production capacity is big, mechanization degree is high, and avoids the defect that the tunnel cave section temperature difference is big, can be effectively improved production efficiency, save energy resource consumption, improve conforming product rate.
For achieving the above object, the technical solution used in the present invention is sectional type tunnel kiln, this sectional type tunnel kiln is by the way of increasing sectioning (18) and building gas passage (19) on kiln car by laying bricks or stones, stop that air-flow is from kiln body upper flow, forced draft gas channel circulation from kiln car, thus greatly strengthen the heat transfer intensity of gas and goods, decrease the goods section temperature difference, improve firing rate, add yield, save energy consumption, improve control of industrial furnace home and qualification rate.
This sectional type tunnel kiln can be sufficiently mixed with the hot blast that cooling brings and burn equipped with burner (4), this burner (4).
This sectional type tunnel kiln is further equipped with measuring and control equipment, reaches to monitor running status in kiln, it is achieved the purpose of thermal parameter in high accuracy control kiln.
Sectional type tunnel kiln includes preheating zone, clinkering zone, cooling zone;Wherein, preheating zone, clinkering zone, cooling zone are sequentially connected with;Preheating zone is sequentially connected with by each equally distributed preheating unit and forms, and clinkering zone is sequentially connected with is formed by each equally distributed unit that burns till, and cooling zone is sequentially connected with by each equally distributed cooling unit and forms;
Kiln body be divided into some sections to be made every section to be a shuttle kiln by sectional type tunnel kiln by sectioning (18), sectioning (18) is arranged on each section of junction, in making kiln by sectioning (18), gas flows by force on the gas passage being located at kiln car, thoroughly avoid stratification of hot gas, gas can flow through equably from heated goods (12), heat-transfer intensity can be strengthened, improve heat transfer rate, shorten heat time heating time, increase the uniformity of kiln body section, improve control of industrial furnace home.
This sectional type tunnel kiln includes track (1), smoke discharging pipe (2), smoke exhaust fan (3), burner (4), fuel channel (5), hot air duct (6), hot-air blower (7), cooling wind arm (8), cooling wind house steward (9), cooling blower (10), kiln tail wicket (11), heated goods (12), kiln car and masonry (13), kiln hood wicket (14), the kiln body masonry of resistance to material (15), kiln body steel construction (16), measurement and control system (17).
Track (1) is arranged in parallel in the bottom of sectional type tunnel kiln, and kiln tail wicket (11), kiln hood wicket (14) are separately positioned on the both sides of sectional type tunnel kiln.
Smoke discharging pipe (2) is connected with smoke exhaust fan (3), and each smoke discharging pipe (2) is connected with the preheating unit of preheating zone.
The unit that burns till of clinkering zone is connected with fuel channel (5), and hot air duct (6) and fuel channel (5) junction are provided with burner (4);Hot air duct (6) is connected with the cooling unit of cooling zone by hot-air blower (7).
Cooling unit is connected with cooling wind house steward (9) by cooling wind arm (8), and cooling wind house steward (9) is connected with cooling blower (10).
Heated goods (12) are arranged on kiln car and masonry (13);The kiln body masonry of resistance to material (15) is the top structure of sectional type tunnel kiln;Kiln body steel construction (16) is the peripheral support structure of sectional type tunnel kiln;Measurement and control system (17) is arranged in sectional type tunnel kiln.
The kiln body section of sectional type tunnel kiln is to put down to hang structure or vault construction.
The sectioning (18) of sectional type tunnel kiln is driven by hydraulic means.
Gas passage (19) is all located on kiln car or local is located on kiln car, local is located on kiln wall.
Under different fuel types and burning condition, burner (4) designs different structure according to fuel change, is equipped with atomization and adjusting means, and guarantee fully burns, energy-saving and cost-reducing.
The present invention by and kiln outside track, turnover mechanism of car etc. support the use reasonable in design, stable, life-span length, yield high, quality is good and it is necessary to and, could ensure run smooth and easy.
Accompanying drawing explanation
Fig. 1 is the generalized section of the present invention;
Fig. 2 is the top view of the present invention.
Fig. 3 is the side view of the present invention.
Fig. 4 is another structural profile schematic diagram of the present invention.
Fig. 5 is another structure schematic top plan view of the present invention.
Fig. 6 is another structure schematic side view of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail.
As shown in figures 1 to 6, sectional type tunnel kiln includes preheating zone, clinkering zone, cooling zone;Wherein, preheating zone, clinkering zone, cooling zone are sequentially connected with;Preheating zone is sequentially connected with by each equally distributed preheating unit and forms, and clinkering zone is sequentially connected with is formed by each equally distributed unit that burns till, and cooling zone is sequentially connected with by each equally distributed cooling unit and forms;
The sectioning of tunnel cave is the temperature according to each section, is fabricated by with the material of different refractory temperatures, and its material can be refractory material, it is also possible to be heat resisting steel etc..
The sectioning of tunnel cave is can be raised up by machinery or hydraulic means when kiln car advances, it is ensured that tunnel cave sectioning does not affect kiln car timing and advances, and after kiln car has advanced, sectioning settles out again.A part or whole part of sectioning can move horizontally, it is also possible to promotes up and down or lands, as long as not affecting kiln car motion just belong to the claimed range of this patent.
The sectioning of tunnel cave can be overall, it is also possible to is divided into several assembly, as long as its function is to stop that air-flow flows from kiln internal upper part, forces gas to flow through within the scope of all power at this patent asks from heated goods bottom.
A part for tunnel cave sectioning can be to build on kiln car by suitable material, and another part is for can up and down or move left and right, it is ensured that before kiln car and then unaffected.
The gas passage (19) being located on kiln car, it is according to hydrodynamics and thermodynamic principles, through strictly calculate, must assure that the Rational flow area of gas, gas is at lower flow, alleviate conventional tunnel kiln bottom goods and be significantly less than the defect of top products temperature, make heated products temperature reach unanimity.
The method of operation of sectional type tunnel kiln is such, heating cycle according to goods and technological requirement, calculate the preheating of goods, heating and cool time, according to the above results, tunnel cave is divided into some sections, every section is made up of one group of kiln car, according to quantity and the length of often organizing kiln car, if arranging arterial highway stop air-flow in kiln body from upper flow often organizing, force gas from the barricade of lower flow i.e. sectioning (18), when being heated to uniform temperature and needing into car, removing sectioning in whole or in part, after the distance of mobile one group of kiln car, sectioning is retracted.Heat according to the high-temperature gas that goods place section is come from the section of burning till at the goods of preheating section, goods in the section of burning till continue to be heated to firing temperature, goods at cooling section are cooled down by cold air and are heated by cold air, deliver to clinkering zone and fuel mixed combustion after air is heated.
It should be noted that, although the present invention is described with reference to detailed description of the invention and illustrates, it is not intended that the present invention is limited to these embodiments described, those skilled in the art can therefrom derive many different variants, and they are all by the true spirit and the scope that are covered in the claims in the present invention.
This reality inventive embodiment has preferably implementation, and not the present invention is made any type of restriction, any one skilled in the art changes possibly also with the technology contents of the disclosure above or is modified to effective embodiment of equivalent, in every case without departing from the content of technical solution of the present invention, the any amendment made above example according to the technical spirit of the present invention or equivalent variations and modification, all still fall within the range of technical solution of the present invention.

Claims (4)

1. sectional type tunnel kiln, it is characterised in that: this tunnel kiln includes preheating zone, clinkering zone, cooling zone;Wherein, preheating zone, clinkering zone, cooling zone are sequentially connected with;Preheating zone is sequentially connected with by each equally distributed preheating unit and forms, and clinkering zone is sequentially connected with is formed by each equally distributed unit that burns till, and cooling zone is sequentially connected with by each equally distributed cooling unit and forms;
Kiln body be divided into some sections to be made every section to be a shuttle kiln by sectional type tunnel kiln by sectioning (18), sectioning (18) is arranged on each section of junction, in making kiln by sectioning (18), gas flows by force on the gas passage being located at kiln car, thoroughly avoid stratification of hot gas, gas can flow through equably from heated goods (12), heat-transfer intensity can be strengthened, improve heat transfer rate, shorten heat time heating time, increase the uniformity of kiln body section, improve control of industrial furnace home;
This sectional type tunnel kiln includes track (1), smoke discharging pipe (2), smoke exhaust fan (3), burner (4), fuel channel (5), hot air duct (6), hot-air blower (7), cooling wind arm (8), cooling wind house steward (9), cooling blower (10), kiln tail wicket (11), heated goods (12), kiln car and masonry (13), kiln hood wicket (14), the kiln body masonry of resistance to material (15), kiln body steel construction (16), measurement and control system (17);
Track (1) is arranged in parallel in the bottom of sectional type tunnel kiln, and kiln tail wicket (11), kiln hood wicket (14) are separately positioned on the both sides of sectional type tunnel kiln;
Smoke discharging pipe (2) is connected with smoke exhaust fan (3), and each smoke discharging pipe (2) is connected with the preheating unit of preheating zone;
The unit that burns till of clinkering zone is connected with fuel channel (5), and hot air duct (6) and fuel channel (5) junction are provided with burner (4);Hot air duct (6) is connected with the cooling unit of cooling zone by hot-air blower (7);
Cooling unit is connected with cooling wind house steward (9) by cooling wind arm (8), and cooling wind house steward (9) is connected with cooling blower (10);
Heated goods (12) are arranged on kiln car and masonry (13);The kiln body masonry of resistance to material (15) is the top structure of sectional type tunnel kiln;Kiln body steel construction (16) is the peripheral support structure of sectional type tunnel kiln;Measurement and control system (17) is arranged in sectional type tunnel kiln.
Sectional type tunnel kiln the most according to claim 1, it is characterised in that: the kiln body section of sectional type tunnel kiln is to put down to hang structure or vault construction.
Sectional type tunnel kiln the most according to claim 1, it is characterised in that: the sectioning (18) of sectional type tunnel kiln is driven by hydraulic means.
Sectional type tunnel kiln the most according to claim 1, it is characterised in that: gas passage (19) is all located on kiln car or local is located on kiln car, local is located on kiln wall.
CN201610350474.8A 2016-05-24 2016-05-24 Segmented type tunnel kiln Pending CN105823333A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610350474.8A CN105823333A (en) 2016-05-24 2016-05-24 Segmented type tunnel kiln

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610350474.8A CN105823333A (en) 2016-05-24 2016-05-24 Segmented type tunnel kiln

Publications (1)

Publication Number Publication Date
CN105823333A true CN105823333A (en) 2016-08-03

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013130366A (en) * 2011-12-22 2013-07-04 Lixil Corp Firing furnace
CN103411421A (en) * 2013-03-28 2013-11-27 济南大学 Novel preheating belt for tunnel kiln
CN203586768U (en) * 2013-11-30 2014-05-07 周全初 Section-type tunnel kiln
CN204187975U (en) * 2014-09-28 2015-03-04 李华 The compound tunnel cave of a kind of circulation
CN204958411U (en) * 2015-05-31 2016-01-13 浙江富来森能源科技有限公司 Continuous alkali activation tunnel kiln of many temperature section active carbons of kun formula
CN205784530U (en) * 2016-05-24 2016-12-07 北京工业大学 Sectional type tunnel kiln

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013130366A (en) * 2011-12-22 2013-07-04 Lixil Corp Firing furnace
CN103411421A (en) * 2013-03-28 2013-11-27 济南大学 Novel preheating belt for tunnel kiln
CN203586768U (en) * 2013-11-30 2014-05-07 周全初 Section-type tunnel kiln
CN204187975U (en) * 2014-09-28 2015-03-04 李华 The compound tunnel cave of a kind of circulation
CN204958411U (en) * 2015-05-31 2016-01-13 浙江富来森能源科技有限公司 Continuous alkali activation tunnel kiln of many temperature section active carbons of kun formula
CN205784530U (en) * 2016-05-24 2016-12-07 北京工业大学 Sectional type tunnel kiln

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
宋希文: "《耐火材料工艺学》", 31 December 2008 *

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Application publication date: 20160803

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