CN201731752U - Shaft kiln - Google Patents
Shaft kiln Download PDFInfo
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- CN201731752U CN201731752U CN2010202203633U CN201020220363U CN201731752U CN 201731752 U CN201731752 U CN 201731752U CN 2010202203633 U CN2010202203633 U CN 2010202203633U CN 201020220363 U CN201020220363 U CN 201020220363U CN 201731752 U CN201731752 U CN 201731752U
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Abstract
A shaft kiln comprises a fuel supply device, an ignition device, a temperature measuring device, an unloading discharging device, a kiln chamber, a fan, a pipeline, a valve, refractory materials, refractory fiber materials, heat preserving reinforcing materials, an iron plate, reinforced concrete materials, masonry materials and an exhaust treatment device. The kiln chamber is provided with a preheating chamber, a heating chamber and a cooling chamber, the upper portion of the heating chamber is communicated with the preheating chamber, the lower portion of the heating chamber is communicated with the cooling chamber, a feeding inlet is arranged on the upper portion of the preheating chamber, a preheating chamber air outlet is arranged on the upper portion of the preheating chamber, a plurality of flame paths are arranged on the lateral wall of the heating chamber, a plurality of air inlet channels are arranged on the lateral walls of the flame paths, the air inlet channels are communicated with the flame paths, a discharge outlet arranged on the lower portion of the cooling chamber is communicated with a discharge chamber, and the unloading device is arranged on the discharge outlet. The shaft kiln saves more energy and is more environmentally friendly by using heat convection and vortex for combustion, can use various fuels such as powdered coals, gas fuel, liquid fuel and the like, is even in heating materials by using the vortex, leads the materials to naturally move to a preheating zone, a heating zone and a cooling zone by aid of natural sedimentation, and can be used for firing various blocky materials such as cements, limes, aluminum oxide, flint clays and the like.
Description
Technical field
The utility model relates to the furnace equipment field, specifically is a kind of shaft furnace.
Background technology
Existing shaft furnace, be used to produce cement, lime, roasting, the multiple ore of calcining, lump material etc. more, ubiquity energy consumption height, discharge that not enough environmental protection, heat energy utilization rate are low, polyhybird coal burning in the kiln, fuel combustion are insufficient, dust and noxious gas emission is too many, problems such as non-uniform temperature in the stove.Cement in vertical kiln has been force and has been stopped using, and the shaft kiln technology progressively withdraws from the manufacture of cement industry.
The utility model content
The purpose of this utility model is to provide a kind of shaft furnace of brand new, can make fuel combustion more abundant, capacity usage ratio is higher, discharge environmental protection more, noxious gas emission significantly reduces, and can make product better, more energy-saving and cost-reducing, reduce production costs, improve furnace efficiency greatly, can produce that cement, lime, flint clay, aluminium oxide, ore roasting, alumina balls are fired, lump material is fired etc. with it.The shaft kiln production technology is radiated vigour again at cement industry, can eliminate rotary kiln, thoroughly shake the production monopoly position of rotary kiln at cement industry, this shaft furnace technology will become dominant technology in following cement industry production.
Also can in shaft furnace, spray into chemical reaction catalyst, reducing agent, additive etc., make shaft furnace become a high-temperature chemical reaction kiln, available its roasting, calcine multiple ore, lump material etc., granular material can be made the ball lump material after, fire with this shaft furnace again.
The utility model shaft furnace can use pluralities of fuel, can use any one solid, liquid, gaseous fuel, also can use multiple fuel combination.Can use all gases, liquid fuels such as natural gas, coal gas, blast furnace gas, coke-stove gas, hydrogen, diesel oil, heavy oil, water-coal-slurry.
The utility model is achieved through the following technical solutions for achieving the above object:
Shaft furnace, comprise: fuel supply system, igniter, temperature measuring equipment, the discharging drawing mechanism, the firing chamber, blower fan, pipeline, valve, refractory material, refractory fibrous material, insulation material, iron plate, Reinforced Concrete Materials, brick mixes material, exhaust gas processing device and waste heat harvester, the firing chamber establishes preheating chamber, heating clamber and cooling chamber, heating clamber top is communicated with preheating chamber, the heating clamber bottom is communicated with cooling chamber, charging aperture is established on preheating chamber top, the preheating chamber gas outlet is established on preheating chamber top, many quirks are set on the sidewall of heating clamber, the quirk sidewall is provided with many inlet channels, inlet channel is communicated with quirk, discharging opening is established in the cooling chamber bottom, discharging opening is communicated with discharge chamber, and discharging opening is provided with the discharging drawing mechanism.Firing chamber's inner chamber cross section is rounded, and inlet channel is provided with along firing chamber's inner chamber cross section tangential direction.Around the heating clamber parallel sidewalls many quirks are set, the quirk top is provided with bossy body.Around the preheating chamber parallel sidewalls multiple tracks is set and leans out body.The cooling chamber internal diameter is overstriking gradually from top to bottom.Cooling chamber is established the cooling chamber admission line, and the cooling chamber admission line connects blower fan, and the discharge chamber gas outlet is established on discharge chamber top, and the discharge chamber gas outlet connects blower fan.The intersection crossbeam is established in the preheating chamber top, establishes the preheating chamber gas outlet on the preheating chamber sidewall of intersection crossbeam below, and the preheating chamber gas outlet connects air-introduced machine, and air-introduced machine connects exhaust gas processing device.The inlet channel outlet side is provided with high temperature resistant pipeline, and outlet side, high-temperature resistant tube road probes in the quirk, and power transportation pipe connects quirk, and the power transportation pipe outlet side probes in the quirk, and the eaves convex body is established on cooling chamber top.Inlet channel connects cartridge and air inlet pipe, and the cartridge outlet side is in the place ahead, air inlet pipe outlet side.The rotation feeding-distribution device is established on the axis in the cooling chamber bottom, rotation feeding-distribution device bottom transverse cross section is rounded, rotation feeding-distribution device top is conical, rotation connects rotating shaft on the axis, feeding-distribution device bottom, the rotating shaft lower end connects rotary power unit, rotating shaft top is provided with the spin stabilization device, rotation feeding-distribution device below is provided with the cooling chamber admission line, the terminal spin stabilization device that connects of cooling chamber admission line, cooling chamber admission line end is provided with the cooling air gas outlet, the cooling chamber lower central is established discharging opening, and the discharging opening below is provided with the discharging drawing mechanism, and the discharging drawing mechanism is provided with arrangements for speed regulation.
Advantage of the present utility model is: the twisted-plumes of fuel burning, swirl combustion has prolonged burning time, makes fuel and air better mixing even, makes full combustion of fuel.Avoid flame temperature, made more uniform temperature, more helped material and be heated evenly, reduced the burning rate of giving birth to greatly.
Utilize fan airflow to make and form eddy current in the firing chamber, improved the move distance of thermal current, improved the holdup time of thermal current in the firing chamber, better cut off thermal current rectilinear motion upward, cut off the adherent effect of thermal current, realize heat transmission better, make in the firing chamber temperature even, material is heated evenly.
Motion is mutual, the thermal current motion makes material also move with respect to thermal current, the motion that utilizes thermal current to center on material has replaced mode of heating that material is rolled, it is the same substantially with the effect of rotary kiln to add thermal effect, also avoided lump material because the broken problem of rolling and causing, make the material required energy consumption of rolling will be far longer than and make the required energy consumption of air motion, can significantly reduce energy consumption, more energy-conservation.
Utilize natural subsidence make in the firing chamber material proper motion to the preheating zone, the thermal treatment zone, cooling zone.The characteristics of utilizing hot-air to move upward make the heat that material is with that burns till be taken to the thermal treatment zone by air, realize the heat radiation of finished product and the recycling of waste heat, and are energy-conservation greatly.
Utilizing the geometry of firing chamber's inwall to make material form nature in the natural subsidence process rolls, material better is heated, changed the ventilation condition of stock column, improved the permeability of stock column, make thermal current better heating material.
Utilize many parallel quirks to increase thermal treatment zone height, utilize quirk that material is enclosed in the fire group, make material better, faster, more uniform being heated.
Utilize material to make material form after-ripening, guarantee that better material fully fires maturation in the holdup time of cooling chamber.Utilize air-breathing firing chamber's charging aperture and the discharging opening place of making of blower fan to form negative pressure, dust, waste gas can not leaked in the atmosphere, the dust when yet making charging, discharging can not leak in the surrounding space, environmental protection more.
Can original old-fashioned shaft kiln be undergone technological transformation with this shaft furnace technology, can make old-fashioned shaft kiln reach environmental requirement, can significantly improve production capacity simultaneously.
Description of drawings
Accompanying drawing 1 is the main TV structure schematic diagram of one of the utility model embodiment;
Accompanying drawing 2 is that the A-A of accompanying drawing 1 is to the sectional structure schematic diagram;
Accompanying drawing 3 is main TV structure schematic diagrames of two of the utility model embodiment;
Accompanying drawing 5 is main TV structure schematic diagrames of three of the utility model embodiment;
The specific embodiment
Agent structure of the present utility model is: shaft furnace, comprise: fuel supply system 32, igniter, temperature measuring equipment 30, discharging drawing mechanism 22, the firing chamber, blower fan 14, pipeline 33, valve 34, refractory material 35, refractory fibrous material 36, insulation reinforcement material 37, iron plate 38, Reinforced Concrete Materials 39, brick mixes material 40, exhaust gas processing device 25 and waste heat harvester 26, the firing chamber establishes preheating chamber 1, heating clamber 2 and cooling chamber 3, heating clamber 2 tops are communicated with preheating chamber 1, heating clamber 2 bottoms are communicated with cooling chamber 3, charging aperture 4 is established on preheating chamber 1 top, preheating chamber gas outlet 5 is established on preheating chamber 1 top, many quirks 7 are set on the sidewall of heating clamber 2, quirk 7 sidewalls are provided with many inlet channels 8, inlet channel 8 is communicated with quirk 7, discharging opening 6 is established in cooling chamber 3 bottoms, discharging opening 6 is communicated with discharge chamber 15, and discharging opening 6 is provided with discharging drawing mechanism 22.
Igniter can be established electronic ignition device, can the using gases fuel ignition.Can first using gases fuel ignition when this shaft furnace uses coal, can be on inlet channel the set-point vent, lighting door seals at ordinary times, opens during igniting, the igniter fuel pipe is inserted in the inlet channel, after the igniting temperature raising to coal dust being sprayed into the success of can lighting a fire in the quirk.Opening air intake during igniting, air quantity strengthens gradually, strengthens fuel quantity gradually, just can use various fuel when forming high temperature eddy current.Also the movable sealing fire hole can be set, available existing burning torch igniting after the igniting is extracted burning torch out, and fire hole is got final product with the sealing bolt sealing.Fire hole can use as flame-observing hole simultaneously.
Temperature measuring equipment 30 can adopt thermocouple equitemperature sensing device, can point for measuring temperature be set a plurality of zones in the firing chamber, can utilize temperature measurement data control temperature, coordinates discharging speed.
It is fixed that firing chamber's height can wait according to the internal diameter size of the category of the material of firing, granular size, firing chamber, and can increase the firing chamber when when material particles is big and firing chamber internal diameter is big.Firing chamber's internal diameter is unsuitable excessive or too small, is controlled between the 1.5-4 rice properly, can reduce the cost and putting up a kiln the cycle of putting up a kiln, and reduces the material loading cost.The firing chamber can utilize the hillside fields to comply with the slope and build, and it is firm to help the firing chamber, reduces the cost of putting up a kiln, and also helps material loading.The chamber that puts up a kiln, level land need reinforce, and the firing chamber can seal with iron plate, can concrete be set or steel structure support is firm, and material loading need be used lowering or hoisting gear.
Can select different refractory material 35 for use according to actual temp, inside, firing chamber is built into refractory brick, can specifically set refractory brick thickness according to firing chamber's height, fire clay, refractory mortar or refractory cement sealing can be used in the refractory brick slit, one deck refractory fibrous material 36 can be established in the refractory brick outside, the outside is established insulation reinforcement material 37 again, can build one deck insulating brick or clay brick etc., and reinforcings such as reinforcing bar can be set in the brick layer.Can keep at a certain distance away in 36 layers of the refractory fibrous materials between refractory brick and the clay brick and the part refractory brick blocks is set as support, can improve the overall construction intensity of kiln wall, avoid fire brick layer outwards to overhang, the clay brick outside can be tamped with mineral wool or perlite or ashes etc., and the outside is used iron plate 38 sealing and reinforcings again, and firing chamber's material is light material like this, the cycle of putting up a kiln can be shortened, improve construction efficiency, can improve firing chamber's heat insulation effect simultaneously, reduce the kiln cost.When the hillside fields puts up a kiln, for reducing investment, the firing chamber directly can be built in the slope, the outside, firing chamber is tamped with soil and is got final product.The firing chamber can use the several years generally speaking continuously, can be with the unified replacing of internal refractory brick during firing chamber's overhaul.
Blower fan 14 can be selected different specifications and models as the case may be for use.
Valve 34 can adopt various air valves.
Refractory fibrous material 36 can be selected different refractory fibrous materials for use according to different temperature needs, can select materials such as ceramic fibre, mineral wool for use.
Reinforced Concrete Materials 39 and brick mix material 40 and can specifically be provided with as required.
Exhaust gas processing device 25 can adopt existing furnace equipment, kiln tail gas is carried out processing such as dedusting, desulfurization, waste heat collection, makes full use of waste heat, fully handles kiln tail gas, reduces environmental pollution.
The firing chamber establishes preheating chamber 1, heating clamber 2 and cooling chamber 3, and heating clamber 2 tops are communicated with preheating chamber 1, and heating clamber 2 bottoms are communicated with cooling chamber 3.Be the better utilization heat, the better heating material, it is better to draw following ratio effect by experiment: the ratio of preheating chamber height, heating clamber height and cooling chamber height can be selected 1: 1: 1, and the ratio of cooling chamber height and cooling chamber internal diameter can be selected 1: 0.382.
Quirk 7 sidewalls are provided with many inlet channels 8, and inlet channel 8 is communicated with quirk 7, utilize inlet channel to send into air and fuel in heating clamber.
Discharging opening 6 is established in cooling chamber 3 bottoms, and discharging opening 6 is communicated with discharge chamber 15, and discharging opening 6 is established device for discharging.Discharging opening can be provided with present fire bars or present shaft furnace machinery device for discharging.
Firing chamber's inner chamber cross section is rounded, and inlet channel 8 is provided with along firing chamber's inner chamber cross section tangential direction.Firing chamber's inner chamber cross section is rounded, can make in the firing chamber more balance of thermal convection current, makes more uniform temperature in the firing chamber.Inlet channel is provided with along firing chamber's inner chamber cross section tangential direction, can make air-flow form eddy current in the firing chamber, helps air motion.Can make and form an eddy current that increases progressively to the center rotating speed from the periphery in the quirk, make fuel burning more fully in quirk, the eddy motion that increases progressively to the center rotating speed from the periphery makes air-flow converge to the eddy current center, makes thermal current enter the central area, firing chamber better, and material better is heated evenly.
Around heating clamber 2 parallel sidewalls many quirks 7 are set, quirk 7 tops are provided with bossy body 9.Bossy body can stop the material vertical sedimentation, can form the space below bossy body, can utilize this space to form quirk.The inclined-plane is arranged in the bossy body top, can make material sedimentation more smoothly.Bossy body can be built into lengthening refractory brick, and the protrusion length of bossy body can specifically be set according to the refractory material rupture strength, avoids fracture.Bossy body makes material form certain rolling in infall process, and material better is heated.
Around preheating chamber 1 parallel sidewalls multiple tracks is set and leans out body 10.Lean out body and can stop the material vertical sedimentation, lean out body and can better cut off thermal current, avoid the adherent effect of thermal current, material better is heated along the rising of firing chamber's inwall straight line.
The overstriking gradually from top to bottom of cooling chamber 3 internal diameters.Can make the material sedimentation more smooth and easy, avoid the material hindered settling to cause scaffold, simultaneously can alleviate the cooling chamber inner wall abrasion, prolong firing chamber service life.
Inlet channel 8 connects cartridge 11 and air inlet pipe 12, and cartridge 11 outlet sides are in the place ahead, air inlet pipe 12 outlet side.Can utilize air inlet cooling cartridge, avoid fuel mouth of pipe scaling loss, can remove the nozzles of various complexity from.Air inlet can avoid forming thermal-flame to the cooling effect of flame zone in quirk, can make more uniform temperature in the quirk.When using coal dust, combustion gas or oil fuel pipe can be packed in the high temperature resistant pipeline 28, can make shaft furnace become the kiln that can use pluralities of fuel or fuel combination, better guarantee the kiln operation as main fuel.
Establish rotation feeding-distribution device 17 on the axis, cooling chamber 3 bottom, rotation feeding-distribution device 17 bottom transverse cross sections are rounded, rotation feeding-distribution device 17 tops are conical, rotation connects rotating shaft 18 on the axis, feeding-distribution device 17 bottom, rotating shaft 18 lower ends connect rotary power unit 19, rotating shaft 18 tops are provided with spin stabilization device 20, rotation feeding-distribution device 17 belows are provided with cooling chamber admission line 13, the cooling chamber admission line 13 terminal spin stabilization devices 20 that connect, cooling chamber admission line 13 ends are provided with cooling air gas outlet 21, cooling chamber 3 lower central are established discharging opening 6, and discharging opening 6 belows are provided with discharging drawing mechanism 22, and discharging drawing mechanism 22 is provided with arrangements for speed regulation.The rotation feeding-distribution device can be cast with wear-resisting steel, circle is arranged in the bottom, diameter of a circle can be selected 0.618 times of discharging opening internal diameter, cone is made on top, the cone surface can be provided with ridge, and rotating shaft driven rotary feeding-distribution device is done crankmotion can better stir material, can play fragmentation to the material that bonds together, can make material along the sedimentation on every side of rotation feeding-distribution device better, the interior material of shaft furnace is evenly leaked down.Discharging opening and rotation feeding-distribution device bottom interval certain altitude can guarantee that material leaks down from discharging opening, and discharging opening is positioned at cooling chamber bottom centre can make the blanking on every side of rotation feeding-distribution device even.Cooling chamber admission line 13 can make refrigerating gas enter cooling chamber more easily, and the space that utilizes rotation feeding-distribution device below to form blows out refrigerating gas around the rotation feeding-distribution device, material is evenly cooled off.The spin stabilization device can adopt bearing or bearing shell, the butter pipe can be drawn outside the firing chamber from cooling chamber admission line 13 bottoms, and is lubricated to spin stabilization device forced feed butter by the butter pipe.Rotating shaft 18 bottoms are provided with thrust bearing 53 and stable bearing 54, guarantee rotating shaft 18 spin stabilizations.Rotary power unit 19 is provided with gear wheel 50, pinion 51, reductor 52, motor etc., and gear wheel 50 is connected on the rotating shaft 18, and driven rotary axle 18 rotates.Discharging drawing mechanism 22 can adopt conveyer belt, the discharging drawing mechanism is provided with arrangements for speed regulation can regulate discharging speed automatically, arrangements for speed regulation can adopt variable-frequency motor, can incessantly mass transport be gone out, can determine discharging speed according to the mature condition that material in the firing chamber is fired, make material uniform settling in the firing chamber, make in the firing chamber furnace atmosphere more stable.
The structure of one of the utility model embodiment is: the firing chamber establishes preheating chamber 1, heating clamber 2 and cooling chamber 3, heating clamber 2 tops are communicated with preheating chamber 1, heating clamber 2 bottoms are communicated with cooling chamber 3, and charging aperture 4 is established on preheating chamber 1 top, and preheating chamber gas outlet 5 is established on preheating chamber 1 top, many quirks 7 are set on the sidewall of heating clamber 2, or many inlet channels 8 are set to 7 sidewalls, and inlet channel 8 is communicated with quirk 7, and discharging opening 6 is established in cooling chamber 3 bottoms, discharging opening 6 is communicated with discharge chamber 15, and discharging opening 6 is provided with the discharging drawing mechanism.Firing chamber's inner chamber cross section is rounded, and inlet channel 8 is provided with along firing chamber's inner chamber cross section tangential direction.Around heating clamber 2 parallel sidewalls many quirks 7 are set, quirk 7 tops are provided with bossy body 9.Around preheating chamber 1 parallel sidewalls multiple tracks is set and leans out body 10.The overstriking gradually from top to bottom of cooling chamber 3 internal diameters.Cooling chamber 3 is established cooling chamber admission line 13, and cooling chamber admission line 13 connects blower fan 14, and discharge chamber gas outlet 16 is established on discharge chamber 15 tops, and discharge chamber gas outlet 16 connects blower fan 14.Intersection crossbeam 23 is established in the preheating chamber top, establishes preheating chamber gas outlet 5 on the preheating chamber sidewall of intersection crossbeam 23 belows, and preheating chamber gas outlet 5 connects air-introduced machines 24, and air-introduced machine 24 connects exhaust gas processing devices 25.Inlet channel 8 outlet sides are provided with high temperature resistant pipeline 28, and high temperature resistant pipeline 28 outlet sides probe in the quirk 7, and power transportation pipe 29 connects quirk 7, and power transportation pipe 29 outlet sides probe in the quirk 7, and eaves convex body 27 is established on cooling chamber 3 tops.Preheating chamber gas outlet 5 connects the coal powder grinding conveying equipment, and the coal powder grinding conveying equipment connects power transportation pipe.
The present embodiment scheme can reduce cost, sufficient combustion, and it is more even that material is heated, and makes heat pass to material more fully.Can utilize waste heat more fully, can make discharging, reinforced not flying dust, can utilize waste heat, better handle kiln tail gas, make the shaft furnace energy-conserving and environment-protective.The shaft furnace of present embodiment can avoid coal dust knot reef to stop up inlet channel.Can avoid coal dust knot reef to stop up power transportation pipe.Can avoid wall hanging reef dross in the cooling chamber, avoid avoiding causing scaffold because of wall hanging reef dross in the cooling chamber influences the material natural subsidence.Can utilize waste heat that coal is dried, can pulverize coal better, can use the bigger coal of humidity, remove the trouble of coal airing oven dry from, can utilize the coal powder grinding conveying equipment to make kiln tail gas pass the coal powder grinding conveying equipment, take out of from the coal powder grinding conveying equipment pulverizing the suspended particulate that produces in the coal powder grinding conveying equipment, be blown into the firing chamber by the coal powder grinding conveying equipment, the coal powder grinding conveying equipment can adopt existing coal-grinding and powder-spraying machine.Use kiln tail gas can better avoid tempering as the coal dust delivery air, the inert gas of employing motion pulverized coal conveying incessantly can thoroughly be avoided coal dust explosion hazard.
Two the structure of the utility model embodiment is: on the architecture basics of embodiment one, inlet channel 8 connects cartridge 11 and air inlet pipe 12, and cartridge 11 outlet sides are in the place ahead, air inlet pipe 12 outlet side.
But the shaft furnace using gases fuel or the liquid fuel of present embodiment can be removed nozzles from, can avoid forming in quirk thermal-flame, can make more uniform temperature in the quirk, and cartridge can adopt the high temperature resistant stainless steel material.
Three the structure of the utility model embodiment is: on the architecture basics of above embodiment, establish rotation feeding-distribution device 17 on the axis, cooling chamber 3 bottom, rotation feeding-distribution device 17 bottom transverse cross sections are rounded, rotation feeding-distribution device 17 tops are conical, rotation connects rotating shaft 18 on the axis, feeding-distribution device 17 bottom, rotating shaft 18 lower ends connect rotary power unit 19, rotating shaft 18 tops are provided with spin stabilization device 20, rotation feeding-distribution device 17 belows are provided with cooling chamber admission line 13, the cooling chamber admission line 13 terminal spin stabilization devices 20 that connect, cooling chamber admission line 13 ends are provided with cooling air gas outlet 21, cooling chamber 3 lower central are established discharging opening 6, discharging opening 6 belows are provided with discharging drawing mechanism 22, and discharging drawing mechanism 22 is provided with arrangements for speed regulation.
The shaft furnace of present embodiment can reduce the drawing mechanism cost, realizes the kiln mechanical automation.
When this shaft furnace uses, dwindle the material lumpiness as far as possible, adopt piece material can shorten firing time, cut down the consumption of energy, can improve the furnace output and the thermal efficiency greatly.Can fill the firing chamber with raw material earlier, release bottom, firing chamber raw material after the igniting gradually from the firing chamber, again these raw material be reloaded the firing chamber and get final product.During cement baking, cement slurry can be made the ball bulk, can suppress or pelletizing balling-up piece.Do not mix coal dust in the cement slurry, can make the cement quality better, comparable existing cement rotary kiln equipment reduces cost greatly, cuts down the consumption of energy greatly, and environmental protection more also can be used this shaft furnace technical scheme existing cement in vertical kiln is transformed.
When producing lime, can fire little lump lime, the 3-5 that the output of firing chamber's lime of unit volume can reach existing limekiln doubly more than, it is higher to produce fritter lime output, produces lime output with the building stones of 2-4 centimetre or 3-5 centimetre and can improve more than 3-5 times.Fritter lime activity is higher, and it is better that lime is fired maturity, and energy consumption can reduce more than 50% than traditional limekiln.Chamber temperature can be controlled within 1200 degree, the lime burn-off phenomenon can not occur, can burn out the little lump lime of highly active superfine.
During the roasting copper sulfide concentrate, can from tail gas, make sulfuric acid.Aluminium hydroxide can be pressed into block material when firing aluminium oxide, calcining gets final product in the kiln of packing into, and comparable existing aluminium oxide is fired equipment and reduced cost greatly, cuts down the consumption of energy greatly, more environmental protection.
When using solid fuel; earlier it is ground into a certain size particle; thin more good more; tiny particle can fully burn in eddy current, and control fuel flow rate and air quantity can be controlled combustion power, when using solid fuel; can use the auger conveyor transfer the fuel; auger conveyor adopts buncher, regulates motor speed and gets final product regulate fuel flow, can control combustion intensity.Can use existing coal-grinding and powder-spraying machine directly to supply with fuel when using coal dust.The coal dust carrier pipe can adopt wear-resistant temperature-resistant high alumina ceramic pipe, during the kiln overhaul earthenware replacing is got final product.
Each compressor flow in the utility model can adopt converter technique, come the layout computer program according to temperature sensor, can control combustion power by computer, computer control fuel flow rate, computer control ignition temperature, computer control firing chamber temperature, computer control discharging speed can use existing computer technology that equipment is carried out Microcomputer Management.Can be above quirk, preheating chamber gas outlet, discharging opening etc. locate to be provided with point for measuring temperature, control the kiln operation according to temperature.
Can transform existing shaft kiln etc. with this shaft furnace technology, can make them reach, surpass present environmental requirement.Their output is significantly improved, and product quality significantly improves, and energy consumption reduces greatly.Make backward production capacity be changed new life, make original old kiln be unlikely to removing in vain, social resources are fully utilized.The energy-saving and emission-reduction of this shaft furnace, environmental protection, the utilization of resources etc. are significant.
The technical solution of the utility model is not restricted in the scope of embodiment described in the utility model.The utility model not technology contents of detailed description is known technology.
Claims (10)
1. shaft furnace, comprise: fuel supply system (32), igniter, temperature measuring equipment (30), discharging drawing mechanism (22), the firing chamber, blower fan (14), pipeline (33), valve (34), refractory material (35), refractory fibrous material (36), insulation reinforcement material (37), iron plate (38), Reinforced Concrete Materials (39), brick mixes material (40), exhaust gas processing device (25), it is characterized in that: the firing chamber establishes preheating chamber (1), heating clamber (2) and cooling chamber (3), heating clamber (2) top is communicated with preheating chamber (1), heating clamber (2) bottom is communicated with cooling chamber (3), charging aperture (4) is established on preheating chamber (1) top, preheating chamber gas outlet (5) is established on preheating chamber (1) top, many quirks (7) are set on the sidewall of heating clamber (2), quirk (7) sidewall is provided with many inlet channels (8), inlet channel (8) is communicated with quirk (7), discharging opening (6) is established in cooling chamber (3) bottom, discharging opening (6) is communicated with discharge chamber (15), and discharging opening (6) is provided with discharging drawing mechanism (22).
2. shaft furnace according to claim 1 is characterized in that: firing chamber's inner chamber cross section is rounded, and inlet channel (8) is provided with along firing chamber's inner chamber cross section tangential direction.
3. shaft furnace according to claim 1 is characterized in that: around heating clamber (2) parallel sidewalls many quirks (7) are set, quirk (7) top is provided with bossy body (9).
4. shaft furnace according to claim 1 is characterized in that: around preheating chamber (1) parallel sidewalls multiple tracks is set and leans out body (10).
5. shaft furnace according to claim 1 is characterized in that: the overstriking gradually from top to bottom of cooling chamber (3) internal diameter.
6. shaft furnace according to claim 1, it is characterized in that: cooling chamber (3) is established cooling chamber admission line (13), cooling chamber admission line (13) connects blower fan (14), and discharge chamber gas outlet (16) is established on discharge chamber (15) top, and discharge chamber gas outlet (16) connect blower fan (14).
7. shaft furnace according to claim 1, it is characterized in that: intersection crossbeam (23) is established in the preheating chamber top, establish preheating chamber gas outlet (5) on the preheating chamber sidewall of intersection crossbeam (23) below, preheating chamber gas outlet (5) connects air-introduced machine (24), and air-introduced machine (24) connects exhaust gas processing device (25).
8. shaft furnace according to claim 1, it is characterized in that: inlet channel (8) outlet side is provided with high temperature resistant pipeline (28), high temperature resistant pipeline (28) outlet side probes in the quirk (7), power transportation pipe (29) connects quirk (7), power transportation pipe (29) outlet side probes in the quirk (7), and eaves convex body (27) is established on cooling chamber (3) top.
9. shaft furnace according to claim 1 is characterized in that: inlet channel (8) connects cartridge (11) and air inlet pipe (12), and cartridge (11) outlet side is in air inlet pipe (12) the place ahead, outlet side.
10. according to claim 1,2,3,4,5,6,7,8 or 9 each described shaft furnaces, it is characterized in that: establish rotation feeding-distribution device (17) on cooling chamber (3) axis, bottom, rotation feeding-distribution device (17) bottom transverse cross section is rounded, rotation feeding-distribution device (17) top is conical, rotation feeding-distribution device (17) connects rotating shaft (18) on the axis, bottom, rotating shaft (18) lower end connects rotary power unit (19), rotating shaft (18) top is provided with spin stabilization device (20), rotation feeding-distribution device (17) below is provided with cooling chamber admission line (13), the terminal spin stabilization device (20) that connects of cooling chamber admission line (13), cooling chamber admission line (13) end is provided with cooling air gas outlet (21), cooling chamber (3) lower central is established discharging opening (6), discharging opening (6) below is provided with discharging drawing mechanism (22), and discharging drawing mechanism (22) is provided with arrangements for speed regulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202203633U CN201731752U (en) | 2010-05-31 | 2010-05-31 | Shaft kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202203633U CN201731752U (en) | 2010-05-31 | 2010-05-31 | Shaft kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201731752U true CN201731752U (en) | 2011-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202203633U Expired - Fee Related CN201731752U (en) | 2010-05-31 | 2010-05-31 | Shaft kiln |
Country Status (1)
| Country | Link |
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| CN (1) | CN201731752U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106045345A (en) * | 2016-08-08 | 2016-10-26 | 辽宁信威环保科技有限公司 | Dumbbell-shaped dead burned magnesia roasting kiln |
-
2010
- 2010-05-31 CN CN2010202203633U patent/CN201731752U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106045345A (en) * | 2016-08-08 | 2016-10-26 | 辽宁信威环保科技有限公司 | Dumbbell-shaped dead burned magnesia roasting kiln |
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