CN2606321Y - Flash rotary kiln - Google Patents
Flash rotary kiln Download PDFInfo
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- CN2606321Y CN2606321Y CN 03233660 CN03233660U CN2606321Y CN 2606321 Y CN2606321 Y CN 2606321Y CN 03233660 CN03233660 CN 03233660 CN 03233660 U CN03233660 U CN 03233660U CN 2606321 Y CN2606321 Y CN 2606321Y
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- air feed
- fuel
- pipe
- rotary kiln
- kiln
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Abstract
The utility model relates to a flash rotary kiln, wherein, a cylinder-shaped kiln body which is obliquely horizontally arranged on a plurality of bases is rotatablely supported by a supporting roller; a driven wheel fixed on the outerwall of the kiln body is driven by an electrical motor to rotate; an upper end wrapping drum is provided with a charging opening, while a lower end wrapping drum is provided with a discharging opening and a fuel and air inlet. The key structure of the utility model lies in that: the central axial line of the kiln cavity is provided with a fuel conveying pipe and an air feed pipe; a water cooling pipe is nested outside the fuel conveying pipe; the bunker of a roll material plate on the internal wall of the kiln body is in the shape of an angle or a circular arc with the angle being more than or equal to 90 degrees. The technology disclosed by the utility model combines the advantages of ordinary rotary kiln, suspended furnace and cyclone furnace; the utility model not only realizes production and processing of material like rotary kiln, but generates cyclone or suspension type burning mode like cyclone furnace or suspended furnace, thereby possessing the function of energy saving and improving production capacity of rotary kiln.
Description
The utility model belongs to a kind of improvement technology of rotary kiln, and the advantage of this technology collection rotary kiln, cyclone furnace, three kinds of kilns of shower furnace is an one.
Rotary kiln has that production capacity is big, quality is uniform and stable, automaticity is high, maintenance is easy, also has characteristics such as thermal efficiency height, low, the continuous operational reliability of cost are good simultaneously.In industries such as metallurgy, chemical industry, building materials, refractory materials, be widely used in the industrial purposes such as cooling of drying, roasting, calcination, calcining, fuming volatilization, calcination material.Its structure mainly is a steel cylindrical shell kiln body, and inner lining refractory constitutes.Be horizontally-inclined be installed in several to or tens of on the steel support roller by base supports, motor-driven rotation.Material to be processed is sent in the chamber from high-end, moves to low under the state of rolling, and burns till gradually, sends from the low side discharging opening.Powdery, liquid or gaseous fuel and air together spray into kiln chamber internal combustion from low side, and waste gas and flue dust are discharged from high-end expelling tube, to gather dust, fuming, cleaning system such as dedusting.Material is distributed in the chamber inner bottom part, original applying number is " 02239188 ", name is called the patent application technology of " a kind of new rotary kiln intracoelomic cavity structure ", solved material is the maximum distribution area in the chamber problem, material is suspension repeatedly, continuously, the swirling air stream shape is distributed in whole kiln space but can not make, and reaches effect low-cost, high production.
The technical problems to be solved in the utility model is on the basis of existing rotary structure, design a kind of oxygen and fuel and supply with the new construction that can directly arrive each position in the kiln chamber simultaneously, feed bin shape to the coiled strip plate is further improved, make fuel and air directly in the chamber each position contact with material to be processed, be the continuous repeatedly processing in kiln of suspension, swirl shape, collection cyclone furnace, shower furnace and general rotary kiln advantage are the flash-type rotary kiln of one.
The concrete scheme that solves the problems of the technologies described above is as follows:
A kind of flash-type rotary kiln, kiln body profile are cylindric, and horizontally-inclined is installed on a plurality of pedestals, use the support roller rotational support, and the driven pulley that is anchored on the external wall of kiln by motor-driven rotates; Upper end bag tube has charging aperture, and lower end bag tube has the inlet of discharging opening, fuel and air.Key is that fuel-supply pipe and air feed pipe are installed on the axis at center, kiln chamber, is set with water composite cooling pipe outside fuel-supply pipe; The feed bin that is packed in the coiled strip plate on the kiln body inwall is 〉=90 ° of angle dihedrals and circular arc.
Further scheme is, fuel-supply pipe, air feed pipe, the water cooling tube that install at kiln intracoelomic cavity center are water-cooled pipe box fuel-supply pipes, three pipe phase nested structures of air feed pipe box water cooling tube.Evenly at interval have the air feed mouth in the kiln chamber on the air feed tube wall, air feed mouth place is equipped with the playpipe of fuel and air; Have on the fuel-supply pipe wall and the corresponding outlet in air feed mouth position, fuel is installed carries arm, every fuel is carried the mouth of pipe of arm, is in the playpipe at air feed mouth place.Every group of air feed mouth on the air feed pipe opened on a circumference, and on the same tangential direction that the playpipe that oral area is installed is being justified.Make the combustion flame and the air in the chamber and the mixing of materials burning of shedding from the coiled strip plate in the space that enter in the kiln chamber like this, oxygen supply is abundant, is the cyclone type burning.Can also be vertically mounted on each air feed mouth place to playpipe, outlet sealing with the playpipe end face, open a plurality of outlets from the playpipe sidewall, radial distributes and installs a plurality of nozzles, fuel and Air mixing combustion flame are forms of radiation and spray in the kiln chamber like this, make processing materials be suspension combustion.
According to the flash-type rotary kiln that such scheme is made, has whirlwind or the common advantage of suspend two kinds of combustion systems of two kinds of kilns and general rotary kiln processing materials.Equidistant intervals is equipped with a plurality of support rings between cavity inner wall and air feed pipe, and is affixed by at least three support members and cavity inner wall, and support ring is sleeved on the air feed pipe outer wall, and formation is rotationally connected with the air feed pipe.Between fuel-supply pipe and water cooling tube, water cooling tube and air feed pipe, mutual support bar is installed uniformly-spaced all.Be welded with the reinforcing ring of many equidistant intervals in the outside, coiled strip plate lower end, its holding capacity distributed rationally and increase, and be difficult for deforming.So just make the flash-type rotary kiln, the end opening of air feed pipe and fuel-supply pipe is all in front, cylinder of rotary kiln lower end; Air blast is communicated with the air feed ferrule, supplies with wind-force and oxygen by each air feed mouth in the kiln chamber.Fuel-supplying unit is communicated with the sealing of fuel-supply pipe mouth, carries arm to supply with fuel to the kiln chamber by the fuel of the playpipe that is positioned at the air feed mouth, in the cavity internal combustion.
The utility model has the advantages that material in the process of rolling with the rotation of kiln body, dished out by the coiled strip plate, wafing under strong wind is sprinkling upon in the space in the chamber, and fuel is sent into through each playpipe has sufficient oxygen to supply with in the chamber; Each playpipe being evenly distributed in the chamber in addition, area of flame is big, and it is violent, effective to burn.The tangential direction structure in the same way that playpipe constitutes outside the air feed pipe can produce swirling air stream, forms the cyclone type fired state, has promoted material to add the process of thermal response rapidly in flame.Playpipe and air feed pipe structure connected vertically then can make fuel and air spray into to the four sides radial, and wind-force and flame make material produce the suspension air-flow in the chamber, form the suspension burning.The structure of two kinds of forms that playpipe constitutes all can reach the oxygen supply abundance, and wind-force is big, and fuel and air distribute all more even than prior art in the chamber.Under the effect cooperation of coiled strip plate to material, burned flame is big with the material contact area at cavity space, thereby burning fully, and firing rate is fast, can improve the production capacity of rotary kiln greatly.Because heat energy utilization rate height also just reduces energy consumption, has reduced cost.The harmful components of discharging in the gas have been reduced simultaneously.By preventing that fuel-supply pipe from being influenced by the hot environment in the kiln chamber, cause in carrier pipe with regard to ignition, even unsafe problem, outside fuel-supply pipe suit water cooling tube, feed the cooling circulating water that flows, make fuel-supply pipe be in low-temperature condition all the time.Guaranteed that fuel is sent to the oral area of each playpipe, sprayed into high pressure wind-force and just carry out combustion reaction in the kiln chamber, more helped safety in production.
Fig. 1, flash-type rotary kiln profile schematic diagram;
Coiled strip plate, support ring and support member in Fig. 2, the chamber, air feed pipe, water cooling tube, fuel-supply pipe are in the version of kiln body cross-section, and the fuel of installing on the nozzle at each place, air port, the fuel-supply pipe on the air feed pipe is carried the position and the installation of the support bar between the fit form of the two and water cooling tube and air feed pipe, fuel-supply pipe and the water cooling tube distribution connected mode cutaway view of arm;
The connected mode distribution situation schematic diagram of circular ring type reinforcing ring that is welded on Fig. 3, the coiled strip plate and coiled strip plate;
Tangential direction formula playpipe that install at each air feed mouth place on Fig. 4, the air feed pipe and fuel carry arm with the position view on the annulus;
Install rectilinear playpipe and fuel and carry arm with the position view on the annulus at place, air port on Fig. 5, the air feed pipe;
Fig. 6, perpendicular type coiled strip plate three-dimensional shape schematic diagram;
Fig. 7, circular arc type coiled strip plate three-dimensional shape schematic diagram;
Fig. 8, air feed pipe, water cooling tube and fuel-supply pipe with the interface of corresponding external equipment and the water-circulating pipe version schematic diagram in the water cooling tube.
Below in conjunction with accompanying drawing,, scheme of the present utility model is described further as embodiment.
With reference to Fig. 1,8, the profile of flash-type rotary kiln is the same with general rotary kiln, is made of the bag tube 8 at long tubular kiln body 11 and both ends.There is the kiln of driving body motor rotating 17 at kiln body middle part, and motor power passes to driven pulley 10 through decelerator 18 and driving wheel 19, and driven pulley 10 is sleeved on kiln body 11 outer walls and with the kiln body and tightens together.About in the of 11 the halves centre position at the kiln body, has to be placed on the external wall of kiln and with the affixed rolling ring 9,12 of kiln body.There is support roller 21,15 to be rotationally connected below each rolling ring and supports the kiln body.Roller bracket, motor, driving wheel support, bag tube stent etc. are all affixed with corresponding kiln susceptor body 22,16,20,14.Charging aperture is opened in bag tube front, upper end, and upside is installed the expelling tube 13 of refuse waste gas; The following bottom surface of lower end bag tube has discharging opening 1, the positive interface that fuel-supply pipe 4, air feed pipe 7 and water cooling tube 6 and corresponding external device are installed; The downside of air feed pipe is installed into air port 2, and the upside of water cooling tube is installed into the mouth of a river 5, and downside is installed delivery port 3.
With reference to Fig. 2,6,7, coiled strip plate 23 is made 90 ° or greater than 90 ° dihedral, or circular arc.Except the welded plate 32 with kiln body inwall was arranged, the edge, lower end was an open type, and favourable material is shed to the kiln cavity space.With reference to Fig. 2,4,5,3,23 sliverings of coiled strip plate are welded on the kiln body 11 steel inwalls, simultaneously support member 26 across of each support ring 24 are welded on kiln body 11 inwalls, and the embedding lining is gone up refractory insulating layer 30.Each support ring is welded, like this, kiln body 11 just is rotationally connected by support ring 24 formations with air feed pipe 7, when the kiln body is rotated under motor-driven, does not influence the work of air feed pipe 7, water cooling tube 6 and fuel-supply pipe 4 again; Rotation contact site at support ring and air feed pipe increases temperature anti-wearing liner.Simultaneously the reinforcing ring 29 of coiled strip plate 23 is welded on outside coiled strip plate 23 lower ends by position uniformly-spaced.
With reference to Fig. 2,4,5, on air feed pipe 7 walls, have a plurality of air feed mouths by equidistant intervals, each air feed mouth place is equipped with playpipe 25, the same outlet that also has the same number corresponding with air feed mouth position on fuel-supply pipe 4, the affixed fuel of going up is carried arm 27 and is made it pass playpipe 25 oral areas that water cooling tube 6 walls stretch into air feed mouth place.Every fuel arm 27 keeps sealed air-tight, does not seep water with the contact position of water cooling tube 6 walls that passed.The playpipe 25 that install at each air feed mouth place on air feed pipe 7 walls can be installed by two kinds of forms: one, with reference to Fig. 4, the outlet of each playpipe 25 in the same way, and on the tangential direction of circle ejection air and fuel, make the fuel that enters and air form cyclone type in kiln the chamber in and burn; And each playpipe 25 also can be mounted to embedded, and promptly body places in the air feed pipe 7, and the mouth of pipe is equal with air feed pipe 7 outer surfaces, helps installing and maintenance.Its two, with reference to Fig. 5, playpipe 25 is vertically mounted on air feed mouth place, the outlet sealing of playpipe 25 end faces has the outlet to all directions on playpipe 25 sidewalls, nozzle 31 is installed, radial ejection air and fuel make material form suspension combustion in the chamber.
With reference to Fig. 2,8, air feed pipe 7 and water cooling tube 6,4 of water cooling tube 6 and fuel-supply pipes are connected and separate by support bar 28, and make being rotationally connected of their formations and kiln body 11 by support ring 24.Fuel-supply pipe 4 is packed in the water cooling tube 6, and makes the front end of fuel-supply pipe 4 stretch out one section, as with the interface of the external device (ED) of supplying with fuel; A circulating water pipe 33 is installed in bottom in water cooling tube 6, and its inner end extend into water cooling tube 6 inner bosoms, and its delivery port 3 is installed on the water cooling tube 6 front end lower walls.The water inlet 5 of water cooling tube 6 is installed on the water cooling tube front end upper wall.The water cooling tube 6 that fuel-supply pipe 4 will be housed is again packed in the air feed pipe 7, and makes in air feed pipe 7 front ends and receive, and forms the step cutting pattern shape, is convenient to be installed into the mouth of a river 5 and delivery port 3.Front end side wall upper shed at air feed pipe 7 is installed into air port 2.Support bar 28 between each pipe in advance by the requirement that is spacedly distributed, is welded on respectively on fuel-supply pipe 4 outer walls and water cooling tube 6 outer walls, just forms the support bar 28 of inner and outer pipes after the pipe of packing into is interior.Fuel on the fuel-supply pipe is carried arm 27, require in advance by designing requirement, determined the each point position, and the position on the corresponding water cooling tube 6, each point place opening on fuel-supply pipe 4 and water cooling tube 6 installs spiral interface, fuel is installed in water cooling tube 6 is carried the inner segment of arm 27, fuel is installed air feed pipe 7 in is carried outer section of arm 27, make in the playpipe 25 that is on it on air feed pipe; All fuel are carried the good and inspection nothing gas leakage drainage of arm 27 attachings, with water cooling tube 6 and air feed pipe 7 front end welded seals.At last three pipes are packed in each support ring 24 in the kiln chamber for the member of one.
Just make a kind of flash-type rotary kiln in the manner described above.Because air is supplied with, fuel is supplied with each position that all can deliver in the kiln chamber, the one, guaranteed combining of oxygen in fuel and the air, oxygen supply abundance in the combustion process, combustion reaction is quick and complete, heat energy utilization rate height.The 2nd and since air blast through air feed pipe 7 big air quantity from playpipe 25 ejections, make the material that is spread on cavity space from coiled strip plate 23 upthrows under the wind-force effect, easier floating forms whirlwind shape or suspension, the contact-making surface and the time of contact that have increased flame and material.The thermal response of material in flame can also be to constitute the high factor of heat energy utilization rate rapidly just.No matter be that playpipe 25 sprays the cyclone type burning of fuel and air formation or the suspension combustion that the nozzle 31 of playpipe 25 forms with radial ejection fuel and air with tangential direction, all played and quickened the thermal response of material with flame, reduce energy consumption and production costs, improve kiln production capacity, reduce the effect of pernicious gas content in the effluent.Thereby be a kind of new designing technique of rotary kiln.
Claims (8)
1, a kind of flash-type rotary kiln, kiln body (11) profile is cylindric, horizontally-inclined is installed on a plurality of pedestals, with support roller (15,21) rotational support, drives driven pulley (10) rotation that is anchored on kiln body (11) outer wall by motor (17); Upper end bag tube has charging aperture, and lower end bag tube (8) has the inlet of discharging opening, fuel and air.It is characterized in that on the axis at center, kiln chamber, being equipped with fuel-supply pipe (4) and air feed pipe (7), outside fuel-supply pipe (4), be set with water cooling tube (6); The feed bin that is packed in the coiled strip plate (23) on the kiln body inwall is 〉=90 ° of angle dihedrals and circular arc.
2, a kind of flash-type rotary kiln according to claim 1, it is characterized in that fuel-supply pipe (4), air feed pipe (7), water cooling tube (6) that kiln body (11) lumen centers is installed are water-cooled pipe box fuel-supply pipes, three pipe phase nested structures of air feed pipe box water cooling tube.
3, a kind of flash-type rotary kiln according to claim 1 and 2 is characterized in that on air feed pipe (7) wall evenly having at interval the air feed mouth in the kiln chamber, and air feed mouth place is equipped with the playpipe (25) of fuel and air; Have and the corresponding outlet in air feed mouth position on fuel-supply pipe (4) wall, fuel is installed carries arm (27), every fuel is carried the mouth of pipe of arm (27), is in the playpipe (25) at air feed mouth place.
4, a kind of flash-type rotary kiln according to claim 1 and 2 is characterized in that every group of air feed mouth on the air feed pipe (7) opened on a circumference, and on the same tangential direction that the playpipe (25) that oral area is installed is being justified.
5, a kind of flash-type rotary kiln according to claim 1 and 2, it is characterized in that and to be vertically mounted on each air feed mouth place to playpipe (25), with the outlet sealing of playpipe (25) end face, open a plurality of outlets from the playpipe sidewall, radial distributes and installs a plurality of nozzles (31).
6, a kind of flash-type rotary kiln according to claim 1 and 2, it is characterized in that equidistant intervals is equipped with a plurality of support rings (24) between cavity inner wall and air feed pipe (7), affixed by at least three support members (26) and cavity inner wall, support ring is sleeved on the air feed pipe outer wall, and formation is rotationally connected with the air feed pipe.
7, a kind of flash-type rotary kiln according to claim 1 and 2 is characterized in that between fuel-supply pipe (4) and water cooling tube (6), water cooling tube (6) and air feed pipe (7) mutual support bar (28) being installed uniformly-spaced all.
8, a kind of flash-type rotary kiln according to claim 1 is characterized in that being welded with in coiled strip plate (23) the lower end outside reinforcing ring (29) of many equidistant intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03233660 CN2606321Y (en) | 2003-03-19 | 2003-03-19 | Flash rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03233660 CN2606321Y (en) | 2003-03-19 | 2003-03-19 | Flash rotary kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2606321Y true CN2606321Y (en) | 2004-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03233660 Expired - Fee Related CN2606321Y (en) | 2003-03-19 | 2003-03-19 | Flash rotary kiln |
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| CN (1) | CN2606321Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101655312B (en) * | 2009-09-11 | 2012-03-21 | 中冶赛迪工程技术股份有限公司 | Water cooling device and method of rotary kiln shell |
| CN106705654A (en) * | 2016-12-29 | 2017-05-24 | 石家庄新华能源环保科技股份有限公司 | Dividing wall rotary kiln |
| CN106907933A (en) * | 2017-01-13 | 2017-06-30 | 石家庄新华能源环保科技股份有限公司 | A kind of partition rotary kiln production of energy-conserving and environment-protective and electricity generation system |
| CN109827425A (en) * | 2019-03-19 | 2019-05-31 | 镇江东亚碳素焦化有限公司 | Rotary kiln is used in a kind of production of petroleum coke |
| CN113237327A (en) * | 2021-04-29 | 2021-08-10 | 安徽省泽乾冶金科技有限公司 | Air supply device of rotary kiln |
| CN115011187A (en) * | 2022-06-25 | 2022-09-06 | 科控环保材料(韶关)有限公司 | Preparation method of high-performance modified water-based paint |
-
2003
- 2003-03-19 CN CN 03233660 patent/CN2606321Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101655312B (en) * | 2009-09-11 | 2012-03-21 | 中冶赛迪工程技术股份有限公司 | Water cooling device and method of rotary kiln shell |
| CN106705654A (en) * | 2016-12-29 | 2017-05-24 | 石家庄新华能源环保科技股份有限公司 | Dividing wall rotary kiln |
| CN106705654B (en) * | 2016-12-29 | 2019-06-04 | 石家庄新华能源环保科技股份有限公司 | A kind of partition rotary kiln |
| CN106907933A (en) * | 2017-01-13 | 2017-06-30 | 石家庄新华能源环保科技股份有限公司 | A kind of partition rotary kiln production of energy-conserving and environment-protective and electricity generation system |
| CN109827425A (en) * | 2019-03-19 | 2019-05-31 | 镇江东亚碳素焦化有限公司 | Rotary kiln is used in a kind of production of petroleum coke |
| CN113237327A (en) * | 2021-04-29 | 2021-08-10 | 安徽省泽乾冶金科技有限公司 | Air supply device of rotary kiln |
| CN113237327B (en) * | 2021-04-29 | 2023-10-20 | 安徽省泽乾冶金科技有限公司 | Rotary kiln air supply device |
| CN115011187A (en) * | 2022-06-25 | 2022-09-06 | 科控环保材料(韶关)有限公司 | Preparation method of high-performance modified water-based paint |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |