CN101029728A - Ceramic hot-blast furnace by emusified coking slurry cyclone burner - Google Patents

Ceramic hot-blast furnace by emusified coking slurry cyclone burner Download PDF

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Publication number
CN101029728A
CN101029728A CNA2006101243909A CN200610124390A CN101029728A CN 101029728 A CN101029728 A CN 101029728A CN A2006101243909 A CNA2006101243909 A CN A2006101243909A CN 200610124390 A CN200610124390 A CN 200610124390A CN 101029728 A CN101029728 A CN 101029728A
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China
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bulkhead
burner
outlet
housing
inwall
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CNA2006101243909A
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Chinese (zh)
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CN100552291C (en
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常厚春
李祖芹
马革
刘效洲
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广州迪森热能技术股份有限公司
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]

Abstract

This invention discloses a ceramic air heating furnace with the emulsification slurry wind burning device including vertical air heating furnace and the emulsification slurry wind burning device. The air heating furnace includes an egg-shape furnace chamber and the heat air opening. The emulsification burning device consists of a front end wall, back end wall and the side crust inside which forms a cylindraceous burning space. There are at least one emulsification burning device and at least a fuel burning device or at least air burning device. The back end wall has an outlet opening which connects to the egg-shape furnace chamber by the pipe. The side of the crust sets two or more tangential wind inlet openings and there are at least one dreg outlet opening near the back end wall at the side of the bottom of the burning space. The ceramic air heating furnace of this invention utilizes the emulsification burning device and the emulsification slurry as fuel so as to save the cost and maximize the utilization of the resource.

Description

Adopt the ceramic hot-blast furnace of emulsifying coke mertar vortex burning device
Technical field
The invention relates to a kind of ceramic hot-blast furnace, particularly about a kind of ceramic hot-blast furnace that adopts emulsified coke slurry burner.
Background technology
Usually, the comparatively energy of cleaning that ceramic hot-blast furnace adopts at present mainly is oil, natural gas or coal gas etc., and still, this rises the fuel cost of ceramic hot-blast furnace significantly, has had a strong impact on the existence of using and making the enterprise of ceramic hot-blast furnace.
For this reason, those skilled in the art is developing the new available energy hardy.Emulsified coke slurry fuel cheap, high effect cleaning becomes the new lover in this area gradually.In ceramic hot-blast furnace, adopt the emulsified coke slurry fuel can the reasonable use natural resources, can reduce the fuel cost of ceramic hot-blast furnace again, so the emulsified coke slurry combustion technology is all being widelyd popularize in countries in the world.
Yet in emulsified coke slurry when burning, exist the difficulty of catching fire, easily coking, flame to disperse, be difficult to the problem of after-flame, industry continuous exploitation can the active combustion emulsified coke slurry boiler plant.A kind of water coke slurry buring technology that is disclosed for CN02135439.1 number as Chinese patent, it comprises twice wind tangent air inlet on precombustion chamber and the wall thereof, tangential twice wind speed is 25~40m/s, end in precombustion chamber is equipped with the wind turbulent burner one time, the swirl strength of a wind is greater than 3.0, the burnt slurry of water atomizing lance is settled in the turbulent burner central area, be atomized into 60~100 μ m granularities by its burnt slurry of water that will enter precombustion chamber, the other end of precombustion chamber is the opening port that connects Industrial Stoves or boiler, after the pre-burning indoor temperature will reach 950~1000 ℃ of temperature at least, guarantee the burning of the burnt slurry of water stable ignition.The burnt slurry of a kind of water cyclone burner that disclosed for CN03113078.X number of Chinese patent and for example, formed by spray gun, combustion chamber, tangential wind inlet, whirlwind tube combustion chamber is cylindric, the burnt slurry of water spray gun is located at an end of whirlwind tube combustion chamber, once tangential wind inlet, twice tangential wind inlet are set in sequence on the wall of the burnt whirlwind tube combustion chamber of starching the spray gun downstream of water, and the other end in whirlwind tube combustion chamber is provided with whirlwind tube combustor exit.But above-mentioned two water coke slurry combustion apparatus that patent disclosed and method exist defective, at first, only adopt the burnt slurry of water spray gun, reach enough combustion intensities, the quantity delivered that must add the burnt slurry of big flood, that is, it is far that the burnt slurry of water particle will spray, and combustion powered that forms like this is elongated, inhomogeneous, not full, thereby can not make the burnt slurry of water particle obtain burning effectively fully, in case the burnt slurry of water particle burning is insufficient, it leaves after the combustion chamber, along with decrease of temperature, it will coking on furnace wall or duct wall, after coking acquires a certain degree, will reduce the heat transfer efficiency of equipment, serious also will cause security incident; Secondly, only adopt the burnt slurry of water spray gun, must restart igniting in case this spray gun is flame-out, what influence was produced normally carries out; Also have, only adopt the burnt slurry of water spray gun, be difficult to effectively the fully atomizing of the burnt slurry of water can not be atomized effectively, just can not guarantee that the burnt slurry of water particle is sufficient to contact with air and burn that efficiency of combustion is not high; And, only adopt the burnt slurry of water spray gun, and other ignition device is not set, have no idea in principle the burnt slurry of water is directly lighted, even in fact the method that adopts first fuel oil to change the burnt slurry of water spray gun again can not light the burnt slurry of water; At last, a wind of above-mentioned two patents is not distinguished with the air that tangential elegance is used, if the air of a wind does not heat, then can cause burning inviolent, if tangential wind does not adopt cold air, then just can not reach effective reduction combustion chamber inner wall temperature and avoid the effect of coking.
In addition, emulsified coke slurry nitrogen content height will produce a large amount of nitrogen oxide after the burning, and such as nitric oxide, nitrogen dioxide etc., these nitrogen oxide compound are discharged in the air will cause atmosphere pollution.Such as, nitric oxide is a no color or smell gas, it generally can not produce adverse effect to human body, but when it is transformed into nitrogen dioxide, just has corrosivity and physiological stimulation effect; When nitrogen dioxide content when 100ppm is above, a few minutes just can cause humans and animals desperately, inhaled concentration is that 5ppm (is 9.4mg/m 2) nitrogen dioxide, a few minutes just can be caused respiratory system imbalance; And nitrogen oxide will cause photochemical fog, such as, as HC and NO XAfter in atmospheric environment, being subjected to strong solar ultraviolet irradiation, produce a kind of photochemical reaction of complexity, generate a kind of new pollutant-photochemical fog.The photochemical fog that December nineteen fifty-two, London took place, in 4 days death toll throughout the year the same period many approximately at most dead more than 4000,45 years old, be about at ordinary times 3 times, be about at ordinary times 2 times below 1 years old.In the week that incident takes place, be respectively 9.3 times, 2.4 times, 5.5 times and 2.8 times of incident similar death toll the last week because of bronchitis, coronary heart disease, pulmonary tuberculosis and the person's of having a weak heart death.Therefore, strict restriction has all been made to the discharge capacity of nitrogen oxide in countries in the world.So,, must adopt various measures to reduce the generation of nitrogen oxide in the emulsified coke slurry combustion process at the high characteristics of emulsified coke slurry nitrogen content.The method and apparatus that can be used to reduce the generation of nitrogen oxide at present mainly is at burning of coal.As a kind of powdered coal burner that Chinese patent is disclosed for No. 97199607, it has a transitional region that plays cushioning effect between main region and auxiliary area.Transitional region is by providing restricted recirculation zone between main region and auxiliary area, thereby improves the control near mixing the burner and flame holding.These restricted recirculation zone send back near the burner outlet an oxygen deprivation pyrolytic zone being reduced into dinitrogen with the nitrogen oxide of emitting, thereby reduce the loss of discharging and uncombusted fuel.It can be seen from the above, and at first, this burner structure only is suitable for the burning of fine coal and is not suitable for the burning of emulsified coke slurry; Secondly, this burner is nitrogen oxide to be reduced into dinitrogen, its structure and complex process by special oxygen deprivation pyrolytic zone.
Also have, contain a large amount of lime-ash in the emulsified coke slurry gas fume after burning, in case these lime-ash enter heating surface, to form dust stratification and coking, light then reduce the heat transfer efficiency of heating surface, heavy then cause being subjected to boiler plant to explode, therefore must manage before entering heating surface, most of lime-ash to be removed.But, also do not have a kind of device preferably effectively the dust in the emulsified coke slurry flue gas to be removed at present.The invention personnel if make combustion chamber temperature reach grey melting point, just can make overwhelming majority ash discharge with the form of liquid through several times experiment discovery.But also there is not a kind of combustion chamber temperature that can make effectively to reach the emulsified coke slurry burner of grey melting point at present.Some technical staff of this area is used for Thermal Equipment with the slag tap technology, a kind of reverse combustion type water-coal-slurry slag tap combustion furnace that is disclosed for No. 02240518 as Chinese patent, mainly by the body of heater shell, upper combustion chamber, the taper reducing, lower combustion chamber, air outlet, heat collector, the collection slag bath is formed, it is characterized in that: the body of heater shell is a metal shell, its inboard wall of burner hearth carries out moulding with refractory material, and top is upper combustion chamber, and planform is the tubular construction than minor diameter, top is airtight on it, and the bottom of upper combustion chamber extends for the taper reducing; One side of taper reducing is an air outlet, and it is lower combustion chamber down, and the planform of lower combustion chamber is the diameter tubular construction bigger slightly than upper combustion chamber diameter, and its underpart is a convergent cone; The extendible portion of air outlet is a heat collector, planform is a cylindrical shape bivalve layer structure, inwall applies with certain thickness refractory material, in the middle of it is hot-air channel, the circular passage is arranged in the bivalve, on the end of heat collector combustion fan is installed, heat collector and, secondary combustion air house steward is connected with three combustion air house stewards; Uniform setting has upwards and the water-coal-slurry spout of oblique angle on the furnace wall, middle part of upper combustion chamber, once combustion-supporting airduct and water-coal-slurry spout and one, secondary combustion air house steward is connected, make progress and the combustion-supporting airduct of the secondary of identical oblique angle being equipped with up and down of water-coal-slurry spout, and with one, secondary combustion air house steward is connected, and is equipped with three combustion-supporting airducts of oblique angle on the furnace wall, middle part of lower combustion chamber, and is connected with three combustion air house stewards.As can be seen from the above analysis, at first, this reverse combustion type water-coal-slurry slag tap combustion furnace is not suitable for the burning of emulsified coke slurry; Secondly, the chamber temperature of this reverse combustion type water-coal-slurry slag tap combustion furnace does not also reach the ash fusion point of emulsified coke slurry lime-ash, the emulsified coke slurry lime-ash can't be liquefied; At last, the chamber structure complexity of this reverse combustion type water-coal-slurry slag tap combustion furnace, manufacturing cost is higher.
At last, for make system continuously, normal operation, that must in time change the burner bottom connects the slag device, and, also contain a large amount of waste heats that can be utilized in the liquid slag, if directly the liquid slag inflow is connect the slag device, will cause the waste of the energy.
Therefore, provide high, that can realize slag tap and the ceramic hot-blast furnace that can effectively reduce the employing emulsifying coke mertar vortex burning device of amount of nitrogen oxides in the tail gas that enters atmosphere of a kind of efficiency of combustion to become the problem that industry need solve.
Summary of the invention
The purpose of this invention is to provide the ceramic hot-blast furnace that a kind of efficiency of combustion is high, that can realize slag tap, adopt emulsifying coke mertar vortex burning device.
A kind of technical scheme of the present invention is: a kind of ceramic hot-blast furnace that adopts emulsifying coke mertar vortex burning device is provided, comprise vertical hot furnace body and emulsifying coke mertar vortex burning device, the hot-blast stove body comprises an avette furnace chamber and the hot-blast outlet that is positioned at avette furnace chamber top, emulsifying coke mertar vortex burning device comprises by front bulkhead, aft bulkhead, and the housing that surrounds of sidewall, the inside of housing forms a combustion space cylindraceous, front bulkhead is provided with at least one emulsified coke slurry burner, and at least one oil burner and/or at least one gas burner, aft bulkhead is offered an outlet, outlet is communicated with avette furnace chamber by pipeline, it is characterized in that, two groups or two groups of above tangential wind inlets are set on the sidewall of housing at interval, every group of tangential wind inlet comprises two or more, make the tangential wind of sending into the combustion space form the tangential wind inlet of circulation, be positioned on the sidewall of bottom, combustion space and offer at least one liquid slag outlet in the position of adjacent back end wall along the inner surface of housing sidewall.
So-called avette furnace chamber is meant approximate avette, is meant that a kind of mid portion diameter is bigger, top and the bottom diameter small construction, such as, left and right sides side is gone up the short eight-sided formation in bottom than length.
Wherein, the outlet of emulsifying coke mertar vortex burning device is communicated with the middle part of avette furnace chamber by pipeline.Further, vertical hot furnace can also comprise a secondary slag outlet that is positioned at avette furnace chamber bottom.
Preferably, the emulsified coke slurry burner is provided with and is used for carrying an air distribution outlet of preheated air in the combustion space, is provided with at interval on the sidewall of housing to be used for carrying in the combustion space not preheated air and total flow to be 0.05~0.15 times tangential wind inlet of preheated air flow more than two groups or two groups.The above tangential wind inlet of two groups or two groups lays respectively on two or more the cross section that is parallel to each other of housing, the cross section of close front bulkhead is at the inwall of front bulkhead sixth to the three/place to the distance between the inwall of aft bulkhead, the cross section of close aft bulkhead at the inwall of front bulkhead to 1/2nd to five/everywhere of the distance between the inwall of aft bulkhead.
Wherein, so-called preheated air is meant the air that heats through suitably, and heating can adopt Special Equipment to carry out, and also can in the afterbody pipeline of this burner residual heat using device be set, utilize the waste heat of flue gas that air heat is arrived certain temperature, so that improve efficiency of combustion.So-called not preheated air is meant the air that temperature is lower, can directly adopt the air in the surrounding environment also can adopt special arrangement suitably to cool off, so that effectively reduce the combustion chamber inner wall temperature and avoid coking.The total flow of tangential wind adopts 0.05~0.15 times of an air distribution flow to be in order to control the excess air coefficient in the combustion chamber, so that reduce the generation of oxynitrides.And stable, full, high speed is rotated, is mixed and acutely, fully avoid combustion powered of coking to guarantee still can burn fully efficiently under than the situation of low excess air coefficient.
Preferably, the inwall of aft bulkhead is 1 times to 5 times of interior diameter of combustion space to the distance between the inwall of front bulkhead, the housing cross section at liquid slag outlet place is between the inwall of the housing cross section at one group of tangential wind inlet place of close aft bulkhead and aft bulkhead, the diameter of outlet be the combustion space interior diameter 1/4th to 2/3rds, formation one coniform transition chamber thereof between outlet and the sidewall of housing.
Wherein, the housing cross section at liquid slag outlet place can be the cross section of housing at the central point place of liquid slag outlet, also can be the cross section of housing at marginal point place of the most close front bulkhead of liquid slag outlet.Alternatively, adopt the ceramic hot-blast furnace of emulsifying coke mertar vortex burning device to be provided with a liquid slag outlet, the aperture area of liquid slag outlet on the inwall of sidewall is less than 1/10th of the cross-sectional area of combustion space.Alternatively, adopt the ceramic hot-blast furnace of emulsifying coke mertar vortex burning device to be provided with two or more liquid slag outlet, the aperture area of each liquid slag outlet on the inwall of sidewall is less than 1/20th of the cross-sectional area of combustion space.
Alternatively, two groups and total flow are set at interval on the sidewall of housing are 0.08~0.12 times tangential wind inlet of preheated air, two groups of tangential wind inlets lay respectively on two cross sections that are parallel to each other of housing, near the cross section of front bulkhead at the inwall of front bulkhead 1/5th to 1/4th places to the distance between the inwall of aft bulkhead, near the cross section of aft bulkhead at the inwall of front bulkhead 1/2nd to 2/3rds places to the distance between the inwall of aft bulkhead, the inner surface contour line of offering direction and sidewall of each tangential wind inlet is tangent, and the bore dia of each tangential wind inlet is smaller or equal to the sixth of the interior diameter of combustion space.
Alternatively, emulsifying coke mertar vortex burning device comprises an emulsified coke slurry burner, an oil burner and a gas burner, wherein, oil burner and gas burner are arranged on emulsified coke slurry burner below, and an air distribution outlet of emulsified coke slurry burner is provided with the eddy flow air register.
Alternatively, the emulsified coke slurry burner is four, the center that four emulsified coke slurry burners uniformly-spaced are arranged on front bulkhead is on the circumference in the center of circle, the diameter of the circumference at four emulsified coke slurry burner places be the combustion space interior diameter 1/3rd to 3/4ths; Oil burner is three, and two are arranged on the front bulkhead bottom, a top that is arranged on front bulkhead; Gas burner is two, is separately positioned near two oil burners of bottom, and an air distribution outlet of emulsified coke slurry burner is provided with the eddy flow air register.
Preferably, further comprise the deslagging car of two or more alternations, one of them deslagging car rests on liquid slag outlet below, and the solid-holding space of this deslagging car is communicated with the liquid slag outlet and the junction of solid-holding space and liquid slag outlet seals.
More preferably, the secondary deslagging car that further comprises two or more alternations, one of them secondary deslagging car rests on secondary slag outlet below, and the solid-holding space of this secondary deslagging car is communicated with the outlet of secondary slag and the junction of solid-holding space and the outlet of secondary slag seals.
Preferably, the deslagging car is provided with roller, adopts the ceramic hot-blast furnace of emulsifying coke mertar vortex burning device further to comprise the guiding device that is used to guide the deslagging car, and guiding device can be the guide rail of recessed guide groove, protrusion or pull line etc.The deslagging car is provided with sensing element, and the sense element senses full load condition is also changed fully loaded deslagging car by the deslagging car of a sky of control system instruction, such as adopting pressure inductor or height measuring device etc.Be provided with the heat absorbing element that is used to absorb the liquid slag waste heat between liquid slag outlet and the solid-holding space, such as pancake coil etc.
Preferably, the below of housing is provided with around the transitional cavity of liquid slag outlet, one end of transitional cavity is fixed on the sidewall of housing, the other end of transitional cavity extends to housing below, and the solid-holding space of deslagging car that rests on liquid slag outlet below is by being tightly connected away from an end of housing with transitional cavity and being communicated with the liquid slag outlet.
Particularly; the roof activity setting of deslagging car can be higher than deslagging roof wall position and be lower than the protective cover of changing between the deslagging roof wall position; transitional cavity is slightly larger than the distance of the roof of deslagging car to ground away from an end of housing to the distance on ground; protective cover is in when being higher than deslagging roof wall position, and the distance on ground is arrived at the top of protective cover away from an end of housing greater than transitional cavity to the distance on ground.When the solid-holding space of deslagging car was communicated with the liquid slag outlet, the other end of transitional cavity was near the roof of deslagging car and be looped around the inside of protective cover, and the inside of protective cover is filled with that sealing is husky to be sealed with the junction that solid-holding space and liquid slag are exported.
Preferably, transitional cavity is a funnel-shaped structure, the cross-sectional area of transitional cavity exports to the solid-holding space from liquid slag and increases gradually, transitional cavity is consistent with the opening shape in solid-holding space away from the shape of housing one end, heat absorbing element is the pancake coil that is arranged in the transitional cavity, and the basal surface in solid-holding space is covered with one deck anti-stick sand.More preferably; transitional cavity is quadrangle away from the shape of housing one end and the opening shape in solid-holding space; protective cover comprises that four can pivot and are arranged on the snap close backplate of deslagging roof wall; each snap close backplate correspondence respectively pivots around each limit of the opening in solid-holding space; when they all are pivoted to deslagging roof wall top; by snap close piece two adjacent snap close backplates are fixed together; thereby four snap close backplates are fixed into a complete protective cover; when not needing to use protective cover; discharge each snap close piece then four snap close backplates be pivoted to deslagging roof wall below respectively; get out of the way the space of deslagging roof wall top, so that the deslagging car enters the operating position or leaves the operating position.
Alternatively, transitional cavity can be circular, square, rectangle or other shape away from the shape of housing one end, and the opening shape in solid-holding space is corresponding with it.
Alternatively, adopt the outlet of a plurality of liquid slag, each liquid slag outlet is corresponding respectively adopts the work that hockets of two or more deslagging cars.
Alternatively, vertical hot furnace can also not established secondary slag outlet, and the furnace chamber of hot-blast stove can also be cylindric, cube or other suitable shape.
Alternatively, the deslagging car is provided with autoalarm, in case reached full load condition (i.e. Yu Ding capacity), the deslagging car will send the alarm staff and come to change the deslagging car.
Alternatively, the deslagging car can adopt electric power, fuel oil, combustion gas or other suitable power drive.
Alternatively, the above and total flow of three groups or three groups can be set at interval on the sidewall of housing and be 0.06~0.1 times tangential wind inlet of preheated air flow.
Alternatively, every group of tangential wind inlet can comprise the tangential wind inlet that is spacedly distributed more than three or three.
Alternatively, two or more emulsified coke slurry burners, two or more oil burner and two or more gas burner can be set on the front bulkhead.
Alternatively, the inwall of aft bulkhead is 2.5 times to 3 times of interior diameter of combustion space to the distance between the inwall of front bulkhead.
Alternatively, the inwall of aft bulkhead is 2.5 times to 4 times of interior diameter of combustion space to the distance between the inwall of front bulkhead, and the central authorities of aft bulkhead offer an outlet, the diameter of this outlet be the combustion space interior diameter 1/4th to 1/3rd.
Alternatively, the atomizing dispersion angle of the emulsified coke slurry of emulsified coke slurry burner ejection, is spent such as 120 degree or 150 smaller or equal to 150 degree more than or equal to 90 degree.
Preferably, oil burner, gas burner are equipped with air distribution outlet, and wherein, the air distribution outlet at the emulsified coke slurry burner is provided with the eddy flow air register at least.
Preferably, fill out deposited alumina silicate fibre heat-insulation layer and phosphate refractory concrete at the inwall of housing; Respectively arrange at least one flame-observing hole at front bulkhead and sidewall; A measuring point of measuring temperature in the combustion space is set, so that monitoring and control automatically above housing.
Preferably, the direction of rotation of the rotational flow air that tangential wind inlet forms is identical with the direction of rotation of the air that the eddy flow air register sprays into, such as all being counter clockwise direction.
Preferably, the ceramic hot-blast furnace of employing emulsifying coke mertar vortex burning device of the present invention further comprises the self energy control system, carries out the full-automation operation, can regulate the shared ratio of each strand wind automatically to adapt to the combustion requirements under the different load.And mix the man-machine dialog interface that advanced large-size screen monitors show, as long as touch the function key on the screen, just can go on foot complete operation by each, but the running status of display system watch-dog and real time information, fault shows and record.
Alternatively, can only adopt the oil burner emulsified coke slurry burner that ignites, perhaps only adopt the gas burner emulsified coke slurry burner that ignites, wherein, gas burner can gas-firing or liquefied gas.
The emulsifying coke mertar vortex burning device that the present invention adopts also can be used for the boiler plant or the furnace equipment of other type, such as steam phase transforming boiler, water-bath stove, metallurgical reflecting stove, glass kiln, heat-conducting oil furnace, Industrial Boiler, oilfield gas injection stove etc.
The invention has the beneficial effects as follows: at first, adopting emulsifying coke mertar vortex burning device on the ceramic hot-blast furnace, is fuel with the emulsified coke slurry, provides cost savings and rationally utilized natural resources; Secondly, emulsified coke slurry is fully burnt and surpass grey melting point, so that the grey liquefy that emulsified coke slurry burning back produces and discharging from the liquid slag outlet has avoided a large amount of lime-ash in the flue gas to enter ceramic hot-blast furnace, thereby avoided lime-ash to enter in the material, therefore guaranteed ceramic quality; Once more, the outlet of secondary slag is set in the avette furnace chamber bottom of hot-blast stove, further the lime-ash of removing in cyclone burner to fraction carries out the removing second time, the fraction lime-ash is discharged from the outlet of secondary slag, the cleannes of hot blast have further been improved, and adopt two or morely both to have guaranteed the burning of emulsified coke slurry efficient stable, realized the liquid state slagging-off of continuous effective again at the work that hockets of the custom-designed deslagging car of burner; In addition, the total flow of tangential wind adopts 0.05~0.15 times of an air distribution flow to make the excess air coefficient in the combustion chamber remain on lower level, fully reduces the generation of oxynitrides; In addition, the inwall of aft bulkhead is 2 times to 5 times of interior diameter of combustion space to the distance between the inwall of front bulkhead, the feasible emulsified coke slurry droplet that is sprayed into by the emulsified coke slurry burner of sidespin wind is done rotation at a high speed, thereby formed a tubbiness, full combustion powered field, can in the combustion chamber, form a kind of fireball shape burning, one side smooth combustion operating mode, the thermal-flame that will burn is drawn into stable burning room's front end on the other hand, solve catching fire and burning problem of the burnt slurry of water effectively, fuel and air mix violent, the ignition temperature height, it is strong that burnout rate height, higher swirl strength mix fuel and air, can realize completing combustion under less excess air coefficient, thereby reduce the generation of nitrogen oxide, and make ignition temperature considerably beyond grey melting point; Further, the classification of sidespin wind adds in the burning one by one, can realize fractional combustion, and the desulfuration efficiency in the combustion process improves in topical hypothermia; Further, adopt two groups of four tangential wind inlets, and inflow cold air, form tangential rotary air stream, both strengthened emulsified coke slurry droplet mixed combustion intensity, reduced the temperature of inner walls again, avoided the coking on inner walls of emulsified coke slurry droplet, simultaneously, tangential swirl can also be wrapped in the emulsified coke slurry torch wherein, avoids it directly to contact with inner walls; At last, adopt a plurality of emulsified coke slurry burners evenly to be arranged on the front bulkhead, can strengthen the atomizing intensity of emulsified coke slurry, shorten the spray penetration of emulsified coke slurry, form tubbiness, even, full, well-mixed combustion powered field, adopt three oil burners, two gas burners, and light four emulsified coke slurry burners in order successively, really effectively four emulsified coke slurry burners are fully lighted, and stable burning, can ignite mutually between four emulsified coke slurry burners, auxiliary combustion has been avoided flame-out phenomenon mutually; In addition, external horizontal cylindrical shape emulsifying coke mertar vortex burning device can directly dock with hot-blast stove, is specially adapted to the transformation to the former hot-blast stove of haveing been friends in the past, and split is arranged, and is easy to maintenance, flexible for installation.
Below in conjunction with drawings and Examples, further specify the present invention, but the present invention is not limited to these embodiment, any on essence spirit of the present invention improvement or substitute, still belong to scope required for protection in claims of the present invention.
Description of drawings
Fig. 1 is the structural representation of the ceramic hot-blast furnace of employing emulsifying coke mertar vortex burning device of the present invention.
Fig. 2 is vertical cross-sectional schematic of the emulsifying coke mertar vortex burning device of the embodiment of the invention 1 employing.
Fig. 3 is along the horizontal cross-sectional schematic of A-A line among Fig. 2.
Fig. 4 is vertical cross-sectional schematic of the emulsifying coke mertar vortex burning device of the embodiment of the invention 2 employings.
Fig. 5 is along the horizontal cross-sectional schematic of B-B line among Fig. 4.
The specific embodiment
Embodiment 1
Please refer to Fig. 1, the ceramic hot-blast furnace of employing emulsifying coke mertar vortex burning device of the present invention comprises vertical hot-blast stove body and emulsifying coke mertar vortex burning device.Wherein, the hot-blast stove body comprise an avette furnace chamber 402, be positioned at avette furnace chamber 402 tops hot-blast outlet 404, be positioned at the secondary slag outlet 406 of avette furnace chamber 402 bottoms and be arranged on the secondary slag-draining device 408 that the secondary slag exports 406 belows.Emulsifying coke mertar vortex burning device comprises housing 10, emulsified coke slurry burner 70, oil burner (figure does not show), gas burner (figure does not show) and a slag-draining device 500.Emulsifying coke mertar vortex burning device is communicated with the middle part of avette furnace chamber 402 by pipeline 104.
Fig. 2 and Fig. 3 have specifically disclosed the structure of the emulsifying coke mertar vortex burning device that ceramic hot-blast furnace adopted.Wherein, one time slag-draining device 500 adopts two deslagging car 500 alternations, and secondary slag-draining device 408 also adopts similar deslagging car.
Please in the lump with reference to Fig. 1, Fig. 2 and Fig. 3, housing 10 is surrounded by front bulkhead 20, aft bulkhead 40 and sidewall 60.Housing 10 is cylindric, and the inside of housing 10 forms a combustion space 30 cylindraceous.The inwall of aft bulkhead 40 is 3 times of interior diameter of combustion space 30 to the vertical range between the inwall of front bulkhead 20.
Evenly be provided with emulsified coke slurry burner 70 and oil burner and gas burner on the housing front bulkhead 20, wherein, emulsified coke slurry burner 70 is arranged on the central authorities of front bulkhead 20, and oil burner and gas burner are arranged on the below of emulsified coke slurry burner 70.Emulsified coke slurry burner 70 and oil burner and gas burner are equipped with and are used for carrying an air distribution outlet of preheated air (figure does not show) in combustion spaces 30, and emulsified coke slurry burner 70 is provided with the eddy flow air register.
The central authorities of housing aft bulkhead 40 offer one the outlet 44, the diameter length of this outlet 44 be combustion space 30 interior diameter 1/4th.
Being provided with two groups is used for carrying the not tangential wind inlet 610,620 of preheated air in combustion space 30 at interval on the housing sidewall 60.Two groups of tangential wind inlets lay respectively on two cross sections that are parallel to each other of housing 10, at the inwall of front bulkhead 20 about 1/4th places to the vertical range between the inwall of aft bulkhead 40, one of them cross section of close aft bulkhead 40 is at the inwall of front bulkhead 20 about 2/3rds places to the vertical range between the inwall of aft bulkhead 40 near one of them cross section of front bulkhead 20.Wherein, the opening direction of each tangential wind inlet 610,620 and the inner surface contour line of sidewall 60 are tangent, the bore dia of each tangential wind inlet 610,620 approximate combustion space 30 interior diameter 1/10th.Each direction of rotation of organizing the rotational flow air that tangential wind inlet 610,620 forms respectively is identical with the direction of rotation of the air that the eddy flow air register sprays into, and is counterclockwise.
Offer liquid slag outlet 66 on the sidewall 60 of 30 bottoms, combustion space, the housing cross section that liquid slag exports 66 places is between the inwall of the housing cross section at one group of tangential wind inlet 620 place of the most close aft bulkhead 40 and aft bulkhead 40.The aperture area of liquid slag outlet 66 on the inwall of sidewall 60 be about combustion space 30 cross-sectional area 1/15th.
The below of housing 10 is provided with around the transitional cavity 666 of liquid slag outlet 66, and an end of transitional cavity 666 is fixed on the sidewall 60 of housing 10, and the other end of transitional cavity 666 extends to the housing below.Particularly, transitional cavity 666 is a funnel-shaped structure, and the cross-sectional area of transitional cavity 666 increases from top to bottom gradually, and transitional cavity 666 is away from the quadrangle that is shaped as of housing one end.Transitional cavity 666 is slightly larger than the vertical range of the roof of deslagging car 500 to ground away from an end of housing to the vertical range on ground.Be provided with the pancake coil 662 that is used to absorb the liquid slag waste heat in the transitional cavity 666, cold water flows in the pancake coil 662 from the below, becomes the higher water of temperature after process and the liquid slag heat exchange and flows out pancake coil 662 from the top.
Two electric power deslagging cars 500 are alternately worked, and Fig. 2 and Fig. 3 have shown that one of them deslagging car 500 is in the operating position, promptly rest on the solid-holding space 505 that liquid slag exports 66 belows and deslagging car 500 and are communicated with via transitional cavity 666 and liquid slag outlet 66.Wherein, the opening shape in solid-holding space 505 and transitional cavity 666 away from the shape of housing one end consistent also be quadrangle.In addition, the basal surface in solid-holding space 505 also is covered with one deck anti-stick sand 902.
The roof activity of deslagging car 500 is provided with a protective cover 503, and protective cover 503 can be higher than deslagging roof wall position and one at one and be lower than between the deslagging roof wall position and move.Wherein, when protective cover 503 is in when being higher than deslagging roof wall position, the top of protective cover 503 to the vertical range on ground greater than transitional cavity 666 away from an end of housing vertical range to ground.At this moment, protective cover 503 can fence up the seam crossing of solid-holding space 505 with transitional cavity 666.And further between protective cover 505 inner surfaces and transitional cavity 666 outer surfaces, fill sealing husky 901 so that the seam crossing of solid-holding space 505 with transitional cavity 666 effectively sealed.
Particularly; protective cover comprises that four can pivot and are arranged on the snap close backplate 503 of deslagging car 500 roofs; each snap close backplate 503 correspondence respectively pivots around each limit of the opening in solid-holding space 505; when they all are pivoted to deslagging car 500 roofs top; by snap close piece 5,035 two adjacent snap close backplates 503 are fixed together; thereby four snap close backplates 503 are fixed into a complete protective cover, so that be connected and sealed with transitional cavity 666.When not needing to use protective cover, discharge the roof below that 5,035 four snap close backplates 503 of each snap close piece are pivoted to deslagging car 500 respectively, get out of the way the space of deslagging car 500 roofs top, so that deslagging car 500 enters the operating position or leaves the operating position.
Deslagging car 500 is provided with roller 508, and ground is provided with the guide rail 800 that is used to guide deslagging car 500.Deslagging car 500 is provided with pressure inductor (figure does not show).When the weight that induces solid-holding space 505 when pressure inductor reaches predetermined weight, will change fully loaded deslagging car 500 by the deslagging car of a sky of control system instruction.
In order further to improve efficiency of combustion, the higher air of the temperature that is preheating that an air distribution outlet of emulsified coke slurry burner 70 and oil burner and gas burner is carried in combustion space 30.
In order to reduce housing 10 inner wall temperatures, avoid the coking on housing 10 inwalls of emulsified coke slurry droplet, the lower air of the temperature that is not preheating that each tangential wind inlet 610,620 is carried in combustion space 30.
In combustion space 30, do rotation at a high speed in order to make the emulsified coke slurry droplet, thereby so that the violent mixed combustion of emulsified coke slurry droplet and air fully improves burnout rate under less excess air coefficient, the wind speed of the tangential wind that each tangential wind inlet 610,620 is carried in combustion space 30 is 30 meter per seconds.
In order fully the emulsified coke slurry atomizing to be disperseed, thereby improve efficiency of combustion so that the emulsified coke slurry droplet mixes combustion powered of the fireball shape that forms a tubbiness with air fully, the atomizing dispersion angle of the emulsified coke slurry of emulsified coke slurry burner ejection is selected about 150 degree for use.
Thereby, by said structure can realize emulsified coke slurry stably, efficiently, high temperature ground burning, ignition temperature surpasses grey melting point, overwhelming majority ash is discharged from liquid slag outlet 66 with the form of liquid, and the deslagging car by alternation 500 transports lime-ash, guaranteed the operation that system stability is continuous.
In addition, in order to reduce the generation of oxynitrides in the emulsified coke slurry combustion process, the total flow of the not preheated air that each tangential wind inlet 610,620 is carried in combustion space 30 is about 0.1 times of preheated air that an air distribution outlet of emulsified coke slurry burner 70 carries in combustion space 30.
In addition, fill out at the inwall of housing 10 and apply alumina silicate fibre heat-insulation layer and phosphate refractory concrete so that fire prevention and insulation.Respectively arrange a flame-observing hole (figure does not show) at front bulkhead 20 and sidewall 60.Leading portion, stage casing and back segment at housing 10 are provided with a temperature sensor (figure does not show) of measuring temperature level in the combustion space respectively, monitor the combustion position of each section of combustion space respectively, so that combinatory analysis and control automatically.
Running is, lights gas burner earlier, relies on gas burner to light oil burner then, the stable back of oil burner turndown of gas burner; After the furnace temperature in the combustion space 30 is raised to about 650~700 ℃, beginning is carried emulsified coke slurry by pulp feeding system to emulsified coke slurry burner 70, emulsified coke slurry burner 70 sprays into the emulsified coke slurry droplet in the combustion space 30, and under the effect of eddy flow air register and tangential wind inlet 610,620, thereby mix fully with air and to form a powerful rotary combustion aerodynamic field, it is low to have solved the burnt slurry of water volatile matter effectively, the technical barrier that difficulty is caught fire; After 70 smooth combustions of emulsified coke slurry burner, close oil burner.At this moment, ignition temperature is considerably beyond grey melting point, and because the density of the liquid slag that forms in the combustion process is big, from high-temperature flue gas, thrown away effectively by centrifugal force, liquid slag outlet 66 from the bottom flows into the deslagging car 500 then, the ash disposal rate can be guaranteed the safe operation of equipment up to more than 80%.High-temperature flue gas in piping 104 enters avette furnace chamber 402, and is supplied with next step operations from the hot-blast outlet 404 on top from the outlet 44 of aft bulkhead 40.In the secondary slag-draining device 408 of remaining fraction cigarette ash below avette furnace chamber 402 is split into secondary slag outlet 406, thereby further improve the hot blast quality, and then guaranteed the quality of ceramic product.
Embodiment 2
Please refer to Fig. 4 and Fig. 5, present embodiment is similar to embodiment 1, and difference is:
Since secondary slag outlet 406 to go out the quantity of slag less, so can not adopt the deslagging car of alternation, but adopt a deslagging container, and at set intervals this deslagging container emptied or changes.
The aperture area of liquid slag outlet 66 on the inwall of sidewall 60 approximate combustion space 30 cross-sectional area 1/20th.
The inwall of front bulkhead 20 is 1.5 times of interior diameter of combustion space 30 to the vertical range between the inwall of aft bulkhead 40.
Outlet 44 diameter approximate combustion space 30 interior diameter 1/2nd, formation one coniform transition chamber thereof 48 between the sidewall 60 of outlet 44 and housing 10.That is, on aft bulkhead 40, formed a horn opening.
Emulsified coke slurry burner 70 is four, four emulsified coke slurry burners 70 are installed in respectively on the front bulkhead 20, and the center of the former end wall 20 that is spacedly distributed is on the circumference in the center of circle, the diameter of the circumference at the place, center of four emulsified coke slurry burners 70 be housing 10 interior diameter 2/3rds.Wherein, the atomizing dispersion angle of the emulsified coke slurry of each emulsified coke slurry burner 70 ejection approximates 45 degree.Thereby, after emulsified coke slurry is lighted, in the combustion space 30 of housing 10 inside, will form the full combustion powered field of the tubbiness that constitutes by four torches.
Oil burner 80 is three, two bottoms that are arranged on front bulkhead 20 wherein, and a top that is arranged on front bulkhead 20, gas burner 90 is two, is separately positioned near two oil burners 80 of bottom.
The bore dia of tangential wind inlet 610,620 is smaller or equal to the circumference at the outermost place of four emulsified coke slurry burners 70 distance to housing 10 inwalls.Wherein, one group of tangential wind inlet 610 is provided with near front bulkheads 20, and the emulsified coke slurry of contiguous four emulsified coke slurry burners, the 70 ejections position that begins to intersect.
During igniting, earlier light gas burner 90 by ignitor, light two oil burners 80 adjacent thereto by gas burner 90 then, rely on the flame in the combustion space 30 to light an oil burner 80 on top again, after furnace temperature in the oil burner 80 operation certain hour combustion spaces 30 is raised to about 650~700 ℃, beginning is carried emulsified coke slurry by pulp feeding system to emulsified coke slurry burner 70, emulsified coke slurry burner 70 is lighted a fire one by one and is put into operation, because tangential wind inlet 610 in the present embodiment, 620 rotation wind direction is counterclockwise, so drop into bottom-right emulsified coke slurry burner 70 earlier, then by counterclockwise dropping into emulsified coke slurry burner 70 one by one.Such emulsified coke slurry burner 70 is lighted the back, and it can be used to again light another emulsified coke slurry burner 70, thereby effectively four emulsified coke slurry burners 70 is all lighted.Because the air distribution outlet of emulsified coke slurry burner 70 installing eddy flow air register, combustion air also is rotated counterclockwise, so the torch of combustion space 30 interior four rotations is added the maelstrom dynamics by the tangential wind that flows in the tangential wind inlet 610,620, and form a big rotary combustion aerodynamic field, it is low to have solved the burnt slurry of water volatile matter effectively, the technical barrier that difficulty is caught fire.
Ceramic hot-blast furnace of the present invention has been arranged the emulsified coke slurry burner 70 of four symmetries, and by igniting mutually between them, the method that improves the furnace flame degree of filling is used for lighting emulsified coke slurry.
Four strands of eddy flow wind that the eddy flow air register of ceramic hot-blast furnace of the present invention by four emulsified coke slurry burners 70 sprayed into and by two strands of tangential swirl wind that sidewall 60 sprays into finish jointly the burnt slurry of water heating, dry, catch fire and combustion process.Rotational flow air mixes fully with the emulsified coke slurry droplet, forms complicated rotation and axially-movable in combustion space 30, improves combustion intensity, makes ignition temperature considerably beyond grey melting point, has realized slag tap.
The outlet 44 of ceramic hot-blast furnace of the present invention is designed to tubaeform, can quicken the spin intensity of thermal-flame so that emulsified coke slurry is fully burnt on the one hand, can also avoid thermal-flame to go out outlet 44 backs on the other hand and directly contact, thoroughly avoid burning the generation of boiler tube phenomenon with boiler tube.
Embodiment 3
Present embodiment is similar to embodiment 1, and difference is:
Adopt the ceramic hot-blast furnace of emulsifying coke mertar vortex burning device to be provided with two big or small identical liquid slag outlets 66 spaced apart, each liquid slag export 66 aperture areas on the inwall of sidewall 60 approximate the combustion space cross-sectional area a thirtieth.
The outlet 66 of two liquid slag by same transitional cavity 666 around and be communicated to the solid-holding space 505 of same deslagging car 500.
The inwall of aft bulkhead 40 is 4 times of interior diameter of combustion space 30 to the vertical range between the inwall of front bulkhead 20.
The wind speed of the tangential wind that each tangential wind inlet is carried in combustion space 30 is 28 meter per seconds.Three groups and total flow are set at interval on the sidewall of housing 10 are 0.08 times tangential wind inlet of preheated air flow.
The atomizing dispersion angle of the emulsified coke slurry of emulsified coke slurry burner ejection is selected about 120 degree for use.
Each direction of rotation of organizing the rotational flow air that tangential wind inlet 610,620 forms respectively is identical with the direction of rotation of the air that the eddy flow air register sprays into, and is clockwise direction.
Embodiment 4
Present embodiment is similar to embodiment 1, and difference is:
The aperture area of liquid slag outlet 66 on the inwall of sidewall 60 approximate combustion space 30 cross-sectional area 1/25th.
Transitional cavity 666 is away from the circle that is shaped as of housing 10 1 ends, and accordingly, the shape of the opening shape in solid-holding space 505 and protective cover 503 also is circular.
Deslagging car 500 is provided with autoalarm, in case reached full load condition (i.e. Yu Ding capacity or weight), deslagging car 500 will send the alarm staff and come to change the deslagging car.
Deslagging car 500 adopts fuel oil to drive.Guiding device is the guide groove on recessed ground.
Transitional cavity 666 is provided with water-cooling wall so that absorb the waste heat of liquid slag.
The inwall of aft bulkhead 40 is 3.5 times of interior diameter of combustion space 30 to the vertical range between the inwall of front bulkhead 20.
The wind speed of the tangential wind that each tangential wind inlet is carried in combustion space 30 is 45 meter per seconds.The total flow of the tangential wind that each tangential wind inlet is carried in combustion space 30 is 0.13 times of preheated air flow.
A temperature sensor of measuring temperature level in the combustion space is set so that monitoring and control automatically on housing 10.
Embodiment 5
Present embodiment is similar to embodiment 1, and difference is:
The deslagging car of alternation is not all adopted in liquid slag outlet 66, secondary slag outlet 406, but adopts a deslagging container, and at set intervals this deslagging container is emptied or changes.
The aperture area of liquid slag outlet 66 on the inwall of sidewall 60 approximate combustion space 30 cross-sectional area 1/10th.
Every group of tangential wind inlet 610,620 comprises three tangential wind inlets that are spacedly distributed.
The inwall of aft bulkhead 40 is 2.5 times of interior diameter of combustion space 30 to the vertical range between the inwall of front bulkhead 20.
The wind speed of the tangential wind that each tangential wind inlet is carried in combustion space 30 is 35 meter per seconds.The total flow of the tangential wind that each tangential wind inlet is carried in combustion space 30 is 0.11 times of preheated air flow.
Embodiment 6
Present embodiment is similar to embodiment 1, and difference is:
The ceramic hot-blast furnace of employing emulsifying coke mertar vortex burning device of the present invention further comprise the self energy control system, it adopts the medium-sized programmable logic controller (PLC) of Siemens, full-automatic operation can be regulated the shared ratio of each strand wind automatically to adapt to the combustion requirements under the different load.And the configuration man-machine dialog interface, as long as touch function key on the screen, just can go on foot complete operation by each, but the running status of display system watch-dog and real time information, fault shows and record.
Intelligence control system has steam overtemperature, steam superpressure, flue overtemperature, overtemperature of tube wall, plunger displacement pump import hydraulic pressure is low, the system water flow is low, plunger displacement pump low oil pressure, high-pressure blast blast are low, low, the no flare up fire of air blast blast, slurry force down, starch and press high, each road sensor fault automatic protection functions such as the slurry flow is low, blower fault, slurry supply pump fault, pump for mortar transmission fault, slurry jar slurry are low, a slurry jar slurry height, piston pump motor fault, pressure sensor failure, but unmanned.
In addition, the ceramic hot-blast furnace of employing emulsifying coke mertar vortex burning device of the present invention further comprises primary supply air system and secondary supply air system.Primary supply air system is made up of main blower, air preheater, air channel, eddy flow air register etc.The air-supply process of primary supply air system is: required combustion air, pressurize through air blast, be warmed to about 100 ℃ through air preheater, deliver to emulsified coke slurry burner 70, oil burner and gas burner respectively by the main air duct current divider, wherein each emulsified coke slurry burner 70 pro-rata becomes rotation wind and direct current wind, provides burning required most of air.Secondary supply air system directly enters tangential wind inlet through the air channel without heating by small blower, produces the cold wind of tangential swirl.

Claims (10)

1, a kind of ceramic hot-blast furnace that adopts emulsifying coke mertar vortex burning device, comprise vertical hot furnace body and emulsifying coke mertar vortex burning device, described hot-blast stove body comprises an avette furnace chamber and the hot-blast outlet that is positioned at described avette furnace chamber top, described emulsifying coke mertar vortex burning device comprises by front bulkhead, aft bulkhead, and the housing that surrounds of sidewall, the inside of described housing forms a combustion space cylindraceous, described front bulkhead is provided with at least one emulsified coke slurry burner, and at least one oil burner and/or at least one gas burner, described aft bulkhead is offered an outlet, described outlet is communicated with described avette furnace chamber by pipeline, it is characterized in that, two groups or two groups of above tangential wind inlets are set on the sidewall of described housing at interval, described every group of tangential wind inlet comprises two or more, make the tangential wind of sending into described combustion space form the tangential wind inlet of circulation, be positioned on the described sidewall of bottom, described combustion space and offer at least one liquid slag outlet in the position of contiguous described aft bulkhead along the inner surface of described housing sidewall.
2, ceramic hot-blast furnace as claimed in claim 1 is characterized in that, further comprises a secondary slag outlet that is positioned at described avette furnace chamber bottom.
3, ceramic hot-blast furnace as claimed in claim 1, it is characterized in that, described emulsified coke slurry burner is provided with and is used for carrying an air distribution outlet of preheated air in described combustion space, is provided with at interval on the sidewall of described housing that to be used for carrying in described combustion space not preheated air and total flow more than two groups or two groups be 0.05~0.15 times tangential wind inlet of the described flow of preheated air.
4, ceramic hot-blast furnace as claimed in claim 3 is characterized in that, the above tangential wind inlet of described two groups or two groups lays respectively on two or more the cross section that is parallel to each other of described housing; Wherein, the cross section of close described front bulkhead is at the inwall of described front bulkhead sixth to the three/place to the distance between the inwall of described aft bulkhead, the cross section of close described aft bulkhead at the inwall of described front bulkhead to 1/2nd to five/everywhere of the distance between the inwall of described aft bulkhead.
5, ceramic hot-blast furnace as claimed in claim 4, it is characterized in that, the inwall of described aft bulkhead is 1 times to 5 times of interior diameter of described combustion space to the distance between the inwall of described front bulkhead, the housing cross section at described liquid slag outlet place is between the inwall of the housing cross section at one group of described tangential wind inlet place of close described aft bulkhead and described aft bulkhead, the diameter of described outlet be described combustion space interior diameter 1/4th to 2/3rds, form a coniform transition chamber thereof between the sidewall of described outlet and described housing.
6, ceramic hot-blast furnace as claimed in claim 4, it is characterized in that, it is 0.08~0.12 times tangential wind inlet of described preheated air that two groups and total flow are set at interval on the sidewall of described housing, described two groups of tangential wind inlets lay respectively on two cross sections that are parallel to each other of described housing, wherein, near the cross section of described front bulkhead at the inwall of described front bulkhead 1/5th to 1/4th places to the distance between the inwall of described aft bulkhead, near the cross section of described aft bulkhead at the inwall of described front bulkhead 1/2nd to 2/3rds places to the distance between the inwall of described aft bulkhead; The inner surface contour line of offering direction and described sidewall of described each tangential wind inlet is tangent, and the bore dia of described each tangential wind inlet is less than or equal to the sixth of the interior diameter of described combustion space.
7, ceramic hot-blast furnace as claimed in claim 3, it is characterized in that, described emulsifying coke mertar vortex burning device comprises a described emulsified coke slurry burner, a described oil burner and a described gas burner, wherein, described oil burner and described gas burner are arranged on described emulsified coke slurry burner below, and an air distribution outlet of described emulsified coke slurry burner is provided with the eddy flow air register.
8, ceramic hot-blast furnace as claimed in claim 3, it is characterized in that, described emulsified coke slurry burner is four, the center that described four emulsified coke slurry burners uniformly-spaced are arranged on front bulkhead is on the circumference in the center of circle, the diameter of the circumference at described four emulsified coke slurry burner places be described combustion space interior diameter 1/3rd to 3/4ths; Described oil burner is three, and two are arranged on described front bulkhead bottom, a top that is arranged on described front bulkhead; Described gas burner is two, is separately positioned near two oil burners of described bottom, and an air distribution outlet of described emulsified coke slurry burner is provided with the eddy flow air register.
9, as the described ceramic hot-blast furnace of one of claim 1~8, it is characterized in that, the deslagging car that further comprises two or more alternations, one of them deslagging car rests on described liquid slag outlet below, and the solid-holding space of this deslagging car is communicated with described liquid slag outlet and the junction of described solid-holding space and the outlet of described liquid slag seals.
10, ceramic hot-blast furnace as claimed in claim 9, it is characterized in that, the secondary deslagging car that further comprises two or more alternations, one of them secondary deslagging car rests on described secondary slag outlet below, and the solid-holding space of this secondary deslagging car is communicated with described secondary slag outlet and the junction of described solid-holding space and the outlet of described secondary slag seals.
CNB2006101243909A 2006-12-25 2006-12-25 Adopt the ceramic hot-blast furnace of emulsifying coke mertar vortex burning device CN100552291C (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102679562A (en) * 2012-05-31 2012-09-19 苏州市金翔钛设备有限公司 Hot-blast stove monitoring system
CN103432876A (en) * 2013-08-21 2013-12-11 潘广松 Method for treating tail gases from kilns
CN103727526A (en) * 2013-12-23 2014-04-16 惠建军 Vertical bidirectional blast injected pulverized-coal combustion furnace

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102679562A (en) * 2012-05-31 2012-09-19 苏州市金翔钛设备有限公司 Hot-blast stove monitoring system
CN103432876A (en) * 2013-08-21 2013-12-11 潘广松 Method for treating tail gases from kilns
CN103432876B (en) * 2013-08-21 2016-06-29 潘广松 A kind of kiln exhaust gas treating method
CN103727526A (en) * 2013-12-23 2014-04-16 惠建军 Vertical bidirectional blast injected pulverized-coal combustion furnace

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