CN203785423U - Calcination rotary kiln - Google Patents
Calcination rotary kiln Download PDFInfo
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- CN203785423U CN203785423U CN201420188493.1U CN201420188493U CN203785423U CN 203785423 U CN203785423 U CN 203785423U CN 201420188493 U CN201420188493 U CN 201420188493U CN 203785423 U CN203785423 U CN 203785423U
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- rotary kiln
- kiln
- fixed leg
- sleeve pipe
- calcination
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- 238000001354 calcination Methods 0.000 title claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 17
- 239000000446 fuel Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000002826 coolant Substances 0.000 claims description 4
- 239000000498 cooling water Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 13
- 229910052720 vanadium Inorganic materials 0.000 abstract description 12
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 abstract description 12
- 239000003245 coal Substances 0.000 abstract description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000005261 decarburization Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 4
- 230000001590 oxidative effect Effects 0.000 abstract description 3
- 238000009776 industrial production Methods 0.000 abstract 2
- GUWKQWHKSFBVAC-UHFFFAOYSA-N [C].[Au] Chemical compound [C].[Au] GUWKQWHKSFBVAC-UHFFFAOYSA-N 0.000 abstract 1
- 239000004575 stone Substances 0.000 abstract 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 31
- 239000010931 gold Substances 0.000 description 31
- 229910052737 gold Inorganic materials 0.000 description 31
- 239000003921 oil Substances 0.000 description 21
- 210000000988 bone and bone Anatomy 0.000 description 8
- 239000002245 particle Substances 0.000 description 6
- 238000011084 recovery Methods 0.000 description 6
- 239000011257 shell material Substances 0.000 description 6
- 238000003723 Smelting Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000011449 brick Substances 0.000 description 4
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 description 4
- 238000002386 leaching Methods 0.000 description 4
- 229910052785 arsenic Inorganic materials 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000003610 charcoal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000031068 symbiosis, encompassing mutualism through parasitism Effects 0.000 description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- 229910052787 antimony Inorganic materials 0.000 description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 241000122049 Hesperiidae Species 0.000 description 1
- 229910001374 Invar Inorganic materials 0.000 description 1
- 241000630329 Scomberesox saurus saurus Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910001569 aluminium mineral Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229910001784 vanadium mineral Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model discloses a calcination rotary kiln, which comprises a rotary kiln barrel, a kiln head sealing device, a kiln head cover, a main ignition gas burner, a secondary air inlet device, a temperature measuring device, a power transmission slip ring device and a roller bearing, wherein the secondary air inlet device is arranged on a kiln body, the Roller bearing is arranged on the bottom portion of the rotary kiln, the rotary kiln barrel is provided with a sleeving which stretches into the rotary kiln, a fixed column which passes through the sleeving and stretches into the rotary kiln is arranged in the sleeving, an annular space is arranged between the fixed column and the sleeving, one end of the fixed column stretching outside the rotary kiln barrel is connected with one end of the sleeving stretching outside the rotary kiln barrel, and a lifting board is arranged on one end of the fixed column stretching into the rotary kiln barrel. The calcination rotary kiln can achieve to control various segments of temperature in the calcination rotary kiln, and guarantees temperature demands and stop time needed by burning reaction, thereby achieving process purpose. The calcination rotary kiln is used for large industrial production design of carbon gold decarburization roasting, and also can be applied for oxidizing roasting industrial production process of stone coal vanadium ores.
Description
Technical field
The utility model relates to a kind of calcination rotary kiln.
Background technology
Gold is one of element that in the earth's crust, abundance is lower, and it is varied that situation is deposited in the tax of gold in the crossing of all kinds of ore deposits and ore, has the placer gold deposit of piling up through natural force weathering carrying, and gold is wherein free particles not of uniform size more, is easy to extract; Have buried underground independent gold deposit and with the gold deposit of other metal symbiosis, the gold wherein having is monomer free gold, more easily extracts; Some particles are thinner, more difficult choosing, and some particles are thin and even by other mineral, wrapped up extremely difficult extraction with other metalliferous minerals or the tight symbiosis of impurity.
In ore, due to gold mainly with fine granular distribution (being wrapped) in sulfide, other objectionable impurities compositions are as the existence of arsenic, antimony, Carbonaceous matter etc., the in various degree low Cyanide Leaching rate of recovery that has influence on Gold in Ores in addition.Comprise China, how unsatisfactory the recovery rate of many gold ores is in the world, and many valuable gold ore deposits enter mine tailing, the wilderness of abandoning.In addition, many gold deposits cannot develop by conventional method, and become slow-witted ore deposit.Therefore, from sulfide superfine granule type and other Technique of Refractory Gold Ores, carry gold and be all considered to " a universally acknowledged difficult problem ".
From the eighties so far, cyaniding has become the conventional golden method of soaking.When in Gold Concentrate under Normal Pressure, the component content such as Cu, Sb, As, C is high, the effect that cyaniding leaches is unsatisfactory, and therefore, people weigh easily the soaking of gold ore, degree that difficulty is soaked according to the height of cyaniding leaching rate.For difficulty being soaked, changing easy gold ore into compared with refractory gold ore, people are constantly exploring various gold extracting methods.Each progress that modern times are put forward golden art is soaked difficulty, compared with refractory gold ore, is become easy gold ore, also make the coverage rate of " difficulty is soaked ", " difficulty is selected smelting " concept constantly towards the direction of grade reduction, the more difficult direction of smelting of selecting, extend, therefore, how further to improve recovery rate, how constantly to reduce costs and improve environment etc. problem, still make " Technique of Refractory Gold Ores is carried technology for gold " to become one of the most challenging problem that scientific worker faces.
Industrialized gold mine roasting technique mainly contains at present: rotary kiln baking, Flash Smelting Furnace roasting, boiling roaster etc.The industrialization of these roasting techniques is mainly used in desulfurization, the dearsenification roasting of (sulfur-bearing, arsenic) gold mine, industrialization report for Carbonaceous gold ore rotary kiln decarburization roasting only shows in the < < non-ferrous metal engineering > > magazine in April, 2012, and the paper < < that Ji Wo company has published is containing in charcoal gold mine roasting expanding test design and interpretation of result > > mono-literary composition.
National Development and Reform Committee has announced the comprehensive utilization of < < vanadium and titanium resources and industry development " 12 " planning > > in July, 2012, in its strict market access clause, clearly stipulate: newly-built vanadic anhydride process units single line production capacity is not less than 3000 t/a, vanadium recovery more than 80%, is realized wastewater zero discharge and tailings comprehensive utilization.From the situation of current vanadium smelting manufacturing enterprise, great majority are difficult to meet afore mentioned rules requirement; For newly-built, take for the vanadium smelting manufacturing enterprise that bone coal navajoite is raw material, maximum bottleneck problem is the vanadium recovery more than 80% that can not meet national relevant regulations, its reason is that the vanadium in bone coal navajoite is composed and is stored in aluminium mineral material crystal structure mainly with trivalent form greatly, and this special occurrence status has determined that it is difficult to be leached by acid or alkali.Meanwhile, due to the organic carbon containing in bone coal navajoite more than 10%, carbonaceous, with complicated containing the tight symbiosis of vanadium mineral, embedding cloth relation, is unfavorable for the leaching of vanadium more.In order successfully to extract vanadic anhydride, conventionally bone coal navajoite is carried out to oxidizing roasting, make Low Valent Vanadium be transformed into pentavalent vanadium, the existing bone coal navajoite torrefaction equipment adopting mainly contains flat kiln, shaft kiln, rotary kiln, tunnel cave, multiple hearth furnace, fluidized bed furnace etc.; But on the current technology, in these facilities, the conversion ratio of bone coal navajoite torrefaction Low Valent Vanadium is all difficult to reach 80%.Therefore, the bone coal navajoite torrefaction technology and equipment of exploitation raising vanadium recovery has very important significance.
Rotary kiln and dry kiln, cooler all belong to the apparatus for rotating category of hot-swap feature.For the apparatus for rotating of heat exchange action, great majority are all provided with lifting facility in cylindrical shell, to guarantee that material particles fully contacts with heat (or cold) air (or other atmosphere) in motion process, the process that obtains heat exchange as much as possible.And dry kiln and cooler because of the temperature of heat exchange be not very high (being all at 800 ℃ or following mostly), lining brick not in steel cylinders, lifting blade adopts and is directly welded on cylindrical shell inner side and is fixed.And rotary kiln determines that by function its calcining, volatilization or other reaction temperatures require often all higher than 1000 ℃, even up to 1200 ℃ or more than.Therefore, in the kiln body of rotary kiln, according to the height of temperature, be all lined with the refractory brick of unlike material, the stack shell material of kiln body is considered also can only adopt ordinary carbon steel because of the economy of manufacturing price, in kiln, the lifting blade invar gonosome direct heat transfer of weldability will occur that barrel part is shock heating, cylinder strength is reduced, finally cause kiln body to destroy.So its lifting effect of rotary kiln mainly with improving drum speed, makes on barrel lump material rise to certain altitude along kiln body inwall, all let alone again Free-rolling and get off, finally make material bed realization upset.In kiln body, raw meal particle size is very little, the material calcination time of staying reaches again a few hours, rely on and improve drum speed, its speed revolution value size is also subject to the restriction of specification and the time of staying, although material can promote certain altitude slightly along kiln body inwall, and tiny bulk material does not occur rolling and divide spilling action, and only only have the slightly bulky grain of less than 10% on charge level, to have rolling, all the other tiny materials are only done slippage and are not stirred at tube wall surface.
In addition, make the long stable operation of rotary kiln, it is a very important ring that each running gear keeps good lubricating condition.Rotary kiln lubricated has following characteristics, 1) low-speed heave-load.As the rotating speed of support roller, be that number per minute turns, even lower, and the pressure that bearing of conveyor idler bears be tens tons to hundreds of ton; 2) environment temperature is high, and cylinder of rotary kiln surface temperature is often more than 200 ℃, the heat that radiation is towards periphery a large amount of, 3) environment dust is many, each seal point of rotary kiln and conveying equipment and the kiln tail flue dust dust that is all scattered towards periphery; 4) in extreme severe cold area, when can causing lubricating oil, rotary kiln accidental shutdown overlong time solidifies, affect reruning of rotary kiln., at present for heavily loaded rotary kiln, support roller supporting sliding bearing and the oil skippers of adopting lubricate more, can not solve the defect of insufficient lubrication in utmost point slow-speed of revolution situation.
Utility model content
The utility model is intended to overcome the deficiencies in the prior art, and a kind of calcination rotary kiln is provided.
In order to achieve the above object, the technical scheme that the utility model provides is:
Described calcination rotary kiln comprises cylinder of rotary kiln, kiln end sealing device, kiln head cover, primary ignition fuel burner nozzle, secondary air device on kiln body, temperature measuring equipment, power transmission slip-ring device and the support roller supporting of being located at rotary kiln bottom; Described cylinder of rotary kiln is provided with the sleeve pipe passing in kiln; In described sleeve pipe, be provided with by sleeve pipe and stretch into the fixed leg in kiln, between fixed leg and sleeve pipe, having annular space; Described fixed leg stretches out one end outside stretching out cylinder of rotary kiln with sleeve pipe, one end outside cylinder of rotary kiln and is connected; The described one end stretched in cylinder of rotary kiln of fixing is provided with lifting blade.
Preferably, described fixed leg comprises fixed leg body and fixed leg external end head; The diameter of described fixed leg external end head is greater than the diameter of fixed leg body; Described fixed leg external end head is connected with sleeve pipe.
Preferably, the junction of described fixed leg external end head and sleeve pipe is provided with adjusting pad.
Preferably, in the annular space between described fixed leg and sleeve pipe, be filled with heat-barrier material.
Preferably, described support roller supporting comprises water cooled bearing seat; Water cooled bearing seat is provided with oil sump, and described oil sump is provided with electric oil pump, is connected with the oil pipe that passes into support roller inside on described electric oil pump; Described oil sump bottom is provided with electric heater and temperature element; On described water cooled bearing seat, be also provided with cooling water inlet and coolant outlet.The other air compensation device that is provided with of described primary ignition fuel burner nozzle.
Wherein, described cylinder of rotary kiln, kiln end sealing device, kiln head cover, primary ignition fuel burner nozzle, secondary air device on kiln body, the structure of temperature measuring equipment and power transmission slip-ring device is identical with rotary kiln described in Chinese patent ZL200820159159.8.
Below in conjunction with design principle, the utility model is described in further detail:
The utility model has been continued to use described in Chinese patent ZL200820159159.8 secondary air supply device and temperature measuring equipment on the kiln body in rotary kiln.When kiln temperature exceeds setting value, on kiln body, secondary air supply device starts automatically, to supplying with cold wind between high-temperature region, reduces this interval sintering temperature, regulates calcination atmosphere, guarantees that Carbonaceous gold ore reacts within the scope of ideal temperature and atmosphere.And kiln exhaust gas atmosphere is monitored, when kiln discharge atmosphere oxygen content is less than particular value, secondary air supply device starts automatically, increases kiln atmosphere oxygen content.According to the actual temperature of the measured kiln body of temperature measuring equipment, react with calcining section the difference that requires temperature, by regulating the opening degree of control valve and the frequency of blower motor size, comprehensive adjustment is controlled air intake uninterrupted and the air intake pressure of the leeward machine of kiln, thereby reach, controls in kiln body the object of temperature fluctuation range in each segment length.
Unlike the prior art but, the utility model adds lifting blade at the inwall of cylinder of rotary kiln furnace zone.Process conditions containing the roasting of charcoal gold mine, not only need certain temperature range and gas concentration at furnace zone, also need the time of staying of a few hours to meet the fully requirement of reaction.Therefore, the speed of gyration of kiln body is subject to the restriction of specification of equipment size, thereby the utmost point slow-speed of revolution makes material in cylindrical shell form slippage and difficult being kicked up.Cause material particles surface to contact with hot atmosphere insufficient, roasting is not thorough, and decarburization is insufficient, directly affects its leaching rate, causes the waste of raw ore.In the cylindrical shell of laying bricks at high temperature, by unique connected mode, add lifting blade, overcome the problem that in prior art, directly welding lifting blade brings in cylindrical shell, and material by lifting blade, can become after kicking up relatively loose, being so just conducive to material can fully contact heat exchange with the interior gas of kiln.Both can reduce gas consumption, also can alleviate the wearing and tearing of material to lining brick.Meet energy-saving and cost-reducing requirement simultaneously.
The utility model also improves the lubricating system of support roller supporting.The utility model except the original oil skipper of employing is lubricated, adds electric oil pump and pipeline on the bearing block of support roller supporting simultaneously, solves lubricated defect not in place in extremely slow-revving situation.In bearing block oil sump bottom, add electric heater, water-cooling system and temperature element, according to the height of oil temperature, judge the situation of working lubrication state, the control of heating, water-cooled and thermometric is all chain with rotary kiln electric-control system, can carry out the manual input of service data, control signal automatic feedback and record, make technological process apparatus realize sequencing and automation completely.
In a word, the rotary kiln that the utility model provides, can realize each section of temperature in kiln controlled, and has guaranteed temperature requirement and the time of staying that calcination is required, thereby has reached technique object.The utility model, for charcoal gold mine decarburization roasting large industrialized Production design, also can be applied to the industrialized producing technology of the oxidizing roasting of bone coal navajoite.
Accompanying drawing explanation
Fig. 1 is the structure chart of the utility model calcination rotary kiln;
Fig. 2 is the B-B profile (lifting blade) of Fig. 1;
Fig. 3 is the I place partial enlarged drawing of Fig. 4;
Fig. 4 is the A-A profile (support roller supporting) of Fig. 1;
Fig. 5 is support roller support side view.
In figure, 1, cylinder of rotary kiln; 2, kiln end sealing device; 3, kiln head cover; 4, primary ignition fuel burner nozzle; 5, secondary air device on kiln body; 6, temperature measuring equipment; 7, power transmission slip-ring device; 8, support roller supporting; 9, lifting blade; 10, fix; 11, sleeve pipe; 12, adjusting pad; 13, water cooled bearing seat; 14, oil sump; 15, electric oil pump; 16, oil pipe; 17, electric heater; 18, temperature element; 19, air compensation device; 20, fixed leg body; 21, fixed leg external end head; 22, cooling water inlet; 23, coolant outlet.
The specific embodiment
embodiment 1
The parameter of the rotary kiln that the utility model provides
1. rotary kiln diameter: 3.6m(effective diameter 3.16m)
2. rotary kiln length: 54m
3. kiln body running rotating speed: 0.2～0.48 r/min
4. kiln is installed gradient: 3%(2%～4%)
5. Main drive power: 30 KW
6. coil kiln power: 4.0 KW
7. overfire air fan power: 3.0KWx5 platform
8. temperature measurer: 20
9. electric heater: 12
10. electric oil pump: 12.
Referring to Fig. 1 to Fig. 5, described calcination rotary kiln comprises cylinder of rotary kiln 1, kiln end sealing device 2, kiln head cover 3, primary ignition fuel burner nozzle 4, secondary air device 5 on kiln body, temperature measuring equipment 6, power transmission slip-ring device 7 and the support roller supporting 8 of being located at rotary kiln bottom; Described cylinder of rotary kiln 1) be provided with the sleeve pipe 11 passing in kiln; In described sleeve pipe 11, be provided with by sleeve pipe 11 and stretch into the fixed leg 10 in kiln, between fixed leg 10 and sleeve pipe 11, having annular space; Described fixed leg 10 stretches out one end outside stretching out cylinder of rotary kiln 1 with sleeve pipe 11, one end outside cylinder of rotary kiln 1 and is connected; Described 10 one end stretched in cylinder of rotary kiln 1 of fixing are provided with lifting blade 9.
Wherein, described fixed leg 10 comprises fixed leg body 20 and fixed leg external end head 21; The diameter of described fixed leg external end head 21 is greater than the diameter of fixed leg body 20; Described fixed leg external end head 21 is connected with sleeve pipe 11.
Described fixed leg external end head 21 is provided with adjusting pad 12 with the junction of sleeve pipe 11.
In annular space between described fixed leg 10 and sleeve pipe 11, be filled with heat-barrier material.
Described support roller supporting 8 comprises water cooled bearing seat 13; Water cooled bearing seat 13 is provided with oil sump 14, and described oil sump 14 is provided with electric oil pump 15, is connected with the oil pipe 16 that passes into support roller inside on described electric oil pump 15; Described oil sump 14 bottoms are provided with electric heater 17 and temperature element 18; On described water cooled bearing seat 13, be also provided with cooling water inlet 22 and coolant outlet 23.The other air compensation device 19 that is provided with of described primary ignition fuel burner nozzle 4.
Take multistage controlling temperature with region device.Low side (being exhaust end) at rotary kiln is fixed on kiln head cover 3 on flooring, length is installed for the primary ignition fuel burner nozzle 4 of number meter Chang Du in the middle and upper part of kiln head cover 3.Because the particularity of primary ignition fuel burner nozzle 4 structural requirements and function is installed on mobile stool car, in the building of kiln head cover 3 plane, be provided with trapped orbit, gas burning system travelling car can shift out Maintenance and Repair by primary ignition fuel burner nozzle 4 easily from rotary kiln.The kiln head cover 3 fixing on the ground and the cylinder of rotary kiln 1 of doing gyration seal by the weight of multilayer flake type, can effectively stop the air of kiln external body to enter, and maintain rotary kiln end reducing atmosphere.
Primary ignition fuel burner nozzle 4 sides at kiln head cover 3 are furnished with an air compensation device 19, according to calcination atmosphere, supplement fresh air, the atmosphere oxygen content of auxiliary burning nozzle ignition and combustion, and the lasting calcination of kiln body middle part material, keep continuity and the uniformity of its atmosphere, improve rotary kiln baking effect.
Claims (6)
1. a calcination rotary kiln, it comprises cylinder of rotary kiln (1), kiln end sealing device (2), kiln head cover (3), primary ignition fuel burner nozzle (4), secondary air device (5) on kiln body, temperature measuring equipment (6), power transmission slip-ring device (7) and be located at the support roller supporting (8) of rotary kiln bottom; It is characterized in that, described cylinder of rotary kiln (1) is provided with the sleeve pipe (11) passing in kiln; In described sleeve pipe (11), be provided with by sleeve pipe (11) and stretch into the fixed leg (10) in kiln, between fixed leg (10) and sleeve pipe (11), having annular space; Described fixed leg (10) stretches out the outer one end of cylinder of rotary kiln (1) and stretches out cylinder of rotary kiln (1) one end outward with sleeve pipe (11) and be connected; One end that described fixing (10) stretched in cylinder of rotary kiln (1) is provided with lifting blade (9).
2. calcination rotary kiln as claimed in claim 1, is characterized in that, described fixed leg (10) comprises fixed leg body (20) and fixed leg external end head (21); The diameter of described fixed leg external end head (21) is greater than the diameter of fixed leg body (20); Described fixed leg external end head (21) is connected with sleeve pipe (11).
3. calcination rotary kiln as claimed in claim 2, is characterized in that, described fixed leg external end head (21) is provided with adjusting pad (12) with the junction of sleeve pipe (11).
4. calcination rotary kiln as claimed in claim 1, is characterized in that, in the annular space between described fixed leg (10) and sleeve pipe (11), is filled with heat-barrier material.
5. calcination rotary kiln as claimed in claim 1, is characterized in that, described support roller supporting (8) comprises water cooled bearing seat (13); Water cooled bearing seat (13) is provided with oil sump (14), and described oil sump (14) is provided with electric oil pump (15), is connected with the oil pipe (16) that passes into support roller inside on described electric oil pump (15); Described oil sump (14) bottom is provided with electric heater (17) and temperature element (18); On described water cooled bearing seat (13), be also provided with cooling water inlet (22) and coolant outlet (23).
6. calcination rotary kiln as claimed in claim 1, is characterized in that, the other air compensation device (19) that is provided with of described primary ignition fuel burner nozzle (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420188493.1U CN203785423U (en) | 2014-04-18 | 2014-04-18 | Calcination rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420188493.1U CN203785423U (en) | 2014-04-18 | 2014-04-18 | Calcination rotary kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203785423U true CN203785423U (en) | 2014-08-20 |
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|---|---|---|---|
| CN201420188493.1U Expired - Lifetime CN203785423U (en) | 2014-04-18 | 2014-04-18 | Calcination rotary kiln |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388817A (en) * | 2017-08-02 | 2017-11-24 | 合肥四书电子商务有限公司 | A kind of manufacture of cement rotary kiln |
| CN115232973A (en) * | 2022-07-27 | 2022-10-25 | 修水县德瑞科技有限公司 | Device and method for improving leaching rate of copper-zinc ash |
-
2014
- 2014-04-18 CN CN201420188493.1U patent/CN203785423U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388817A (en) * | 2017-08-02 | 2017-11-24 | 合肥四书电子商务有限公司 | A kind of manufacture of cement rotary kiln |
| CN107388817B (en) * | 2017-08-02 | 2019-05-28 | 黄石市四棵水泥厂 | A kind of manufacture of cement rotary kiln |
| CN115232973A (en) * | 2022-07-27 | 2022-10-25 | 修水县德瑞科技有限公司 | Device and method for improving leaching rate of copper-zinc ash |
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