CN206695120U - A kind of dore furnace single channel burner - Google Patents

Abstract

The utility model discloses a kind of dore furnace single channel burner, and it includes outer tube and fuel inlet adapter；The single channel burner also includes trunnion, the outer tube, trunnion and fuel inlet adapter are sequentially connected the rear internal fuel channel with insertion, fuel channel in trunnion has the section of gradual change, cone is additionally provided with the trunnion, the cone is slidably disposed in fuel channel, in the also section with gradual change and cone outer wall surface is consistent with the incline direction of trunnion inner wall surface at the trunnion gradual change section, adjusting means is directly or indirectly connected and drives its slip cone with cone.Dore furnace of the present utility model designs unique, the nimble efficiently regulating measure of cooperation with single channel burner structure, a variety of needs of nsp kiln dore furnace applying working condition can be met, be advantageous to establish rational temperature schedule, improve fuel availability, realize the purpose of saving energy, lowering energy consumption and reducing pollutants discharge.

Description

A kind of dore furnace single channel burner

Technical field

The utility model belongs to heat power equipment, is the special single channel burner of nsp kiln dore furnace.

Background technology

China is cement big country, since reform and opening-up, has benefited from economic rapid growth, cement production capacity leaps to rapidly the world One, technology and equipment manufacture level leaps to world-class.But long-term extensive style development also brings the stupid of structural production capacity surplus Disease, imbalance between supply and demand highlight also therefore more.In China, cement industry concentration degree is relatively low, and scope of the enterprise is less than normal, regional area production capacity Serious superfluous, market excessive competition, scientific and technological content is low, the factor such as energy consumption height, causes the profit level of whole cement industry relatively low； And cement production capacity is commercially supplied and is far longer than demand, the year actual demand dosage of whole cement is supplied in hundred million tons of 23-24 It is far longer than this numeral and reaches 3,500,000,000 tons.

Cement decomposing furnace is that raw material are disperseed to suspend in the gas flow, makes coal dust firing and Decomposition of Calcium Carbonate process very in short-term The device of interior generation, it is a kind of efficient directly combustion-type solid-vapor heat-exchange device.With adding for urbanization process Fast and the newly-built demand of infrastructure increase, substantial amounts of cement, cement industry are needed when related road, building or newly-built facility Development at full speed is obtained.In order to adapt to the needs of cement output raising, newly-built cement furnace is on the one hand wanted, on the other hand may be used also To improve yield by being improved to existing cement furnace or reduce energy consumption.And cement furnace is big power consumer, stove is improved The fuel efficiency of kiln is to realize the key of energy-saving and emission-reduction.

In existing cement industry production, burner of decomposition furnace provides 60% or so fuel, is new dry process production One of nucleus equipment of line.Conventional decomposition burner can not carry out fuel feed regulation, fuel feed or more or few, Have a strong impact on clinker, quality, the ton heat consumption of clinker of dry method production line.Ton heat consumption of clinker is reduced, reduces fossil fuel Usage amount, mitigate environmental pressure be a line producers and scientific research personnel mission.Economize on resources, environmental protection everybody have Duty, is green hill emission reduction, is the policy that must be implemented for a long time in the present age for clear water consumption reduction.

It is be only second to thermal power generation second largest in addition, nitrogen oxide NOx caused by novel dry-method cement clinker production line Pollution sources, domestic out of stock be substantially use sprinkling ammoniacal liquor and urea liquid, the escaping of ammonia secondary pollution serious！

Utility model content

The purpose of this utility model is that providing a kind of ton of cement decomposing furnace that heat consumption of clinker is few, discharged nitrous oxides are few uses Single channel burner.

In order to achieve the above object, scheme is used by the utility model：

A kind of dore furnace single channel burner, it includes outer tube and fuel inlet adapter；The single channel burner is also Including trunnion, the outer tube, trunnion and fuel inlet, which are taken over, is sequentially connected the rear internal fuel channel with insertion, in trunnion Fuel channel there is the section of gradual change, be additionally provided with cone in the trunnion, the cone is slidably disposed in fuel channel Interior, cone is inclined the section and cone outer wall surface and trunnion inner wall surface also at trunnion gradual change section with gradual change Tilted direction is consistent, and adjusting means is directly or indirectly connected with cone and drives its slip.By relative between cone and trunnion The change of distance, the fuel channel sectional area of the single channel burner is adjusted, so as to the fuel and/or combustion-supporting to fuel device output The amount of agent is adjusted, and then the combustion process in combustion chamber can be made more abundant, uses the ton of the dore furnace of the burner Heat consumption of clinker fuel low compared with conventional decomposition stove, required is few, and the amount of nitrogen oxides in caused tail gas substantially reduces, can Greatly to reduce the cost of follow-up vent gas treatment, also more environmentally-friendly；Therefore use the dore furnace ton of burner of the present utility model Clinker cost reduces obvious.

Preferably, the adjusting means includes guide rod, worm screw lift and sealing shroud, the guide rod directly or Ground connection be connected with cone, worm screw lift be used for drive leader move, sealing shroud be used for isolate single channel burner with It is extraneous.The adjusting means is simple in construction, easy to make and easy to use.

Further, the adjusting means also includes two guide pin bushings and a strut, and outer tube side is provided with opening, and two guide pin bushings are outside Tube axis direction is arranged at the opening both sides, and guide rod is slidably engaged in two guide pin bushings, and strut is opened through the described of outer tube Both ends are fixedly connected with guide rod and cone respectively after mouthful.It can make fuel channel as far as possible point-blank after so setting, So as to reduce the loss in course of conveying, and the structure of the adjusting means is also more compact, and can increase fuel device installation makes Convenience.

Further, fuel inlet adapter includes spherical shell and inlet tube, and inlet tube is located at spherical shell side, edge on spherical shell Outer tube axis direction is provided with opening, and the guide rod is connected after passing through the opening with worm screw lift；The guide rod The other end that is connected with cone is connected with worm screw lift.The fuel device of the structure carries certain angle turning function, thus right There is practicality well when device shaped or place limitation requirement must carry corner.And its structure is more simple, can To reduce the cost made, reduce failure occurrence probability.

Preferably, the single channel burner also includes inner tube, and said inner tube is concentrically disposed with outer tube, outer tube and interior It is provided with support member between pipe, the support member is same outer tube and inner tube is together cast or is fixed together after manufacturing respectively 's.Inner tube is not involved in the conveying of fuel in itself, does not convey fuel inside it；It is defeated in circulating line only between outer tube and inner tube Send fuel, the effect that fuel can be made to produce flow-disturbing in course of conveying is so set, this is for conveying fuel and combustion adjuvant There is preferably effect during mixture, mixing can be made more abundant.

Preferably, the quantity of the support member is 3,4 or more, and the direction of support member is radially set Or spiral setting, the angle that spiral is set is gradual change in the range of 17 degree to 60 degree.The setting of support member on the one hand can be with Strengthen the degree that is connected firmly of inner and outer tubes, while can also further strengthen flow-disturbing effect, subsequent combustion reaction is more filled Point.

Preferably, the single channel burner also includes scale, and the scale is arranged on single channel burner outer wall simultaneously It is connected with cone, guide rod or worm screw lift, it can show the clearance distance or annular region of cone and trunnion inwall Area.The setting of scale can make operation in working condition that is in good time, intuitively knowing current combustion device.

Preferably, the single channel burner also includes flowmeter, and the flowmeter is arranged on fuel channel.Flowmeter Transducing signal can be produced, is advantageous to be combined with other electrical equipments.

Further, the single channel burner also includes motor and controller, and the motor is used for directly or indirectly Drive leader moves, and controller is used for the transducing signal for receiving flowmeter and motor work.Motor, controller and flowmeter After sharing use, the monitoring that be automated for the working condition of each burner of PLC or single-chip microcomputer can be used, avoids manpower The inconvenience of regulation can improve the precision of regulation simultaneously.

Dore furnace single channel burner of the present utility model can adjust the number of fuel duty, its unique structure Design, coordinate nimble efficiently regulating measure, a variety of needs of nsp kiln dore furnace applying working condition can be met, be advantageous to establish Rational temperature schedule, fuel availability is improved, reduce ton heat consumption of clinker and discharged nitrous oxides, and then a ton clinker can be reduced Production cost.

Brief description of the drawings

Fig. 1 is the schematic diagram of embodiment one；

Fig. 2 is Fig. 1 section B-B structural representation；

Fig. 3 is Fig. 1 C-C cross section structure schematic diagrams；

Fig. 4 is the schematic diagram of embodiment two；

Fig. 5 is Fig. 4 Section A-A structural representation.

Wherein, 1, outer tube, 2, trunnion, 3, fuel inlet adapter, 4, cone, 5, adjusting means, 6, inner tube, 11, support member, 51st, guide rod, 52, worm screw lift, 53, sealing shroud, 541, guide pin bushing, 542, guide pin bushing, 55, strut.

Embodiment

In order that utility model may be better understood in those skilled in the art, so as to the scope of protection of the utility model Apparent restriction is made, the utility model is described in further detail below in conjunction with the accompanying drawings.

A kind of dore furnace single channel burner, including outer tube 1 and fuel inlet adapter 3, the single channel burner is also Including trunnion 2, the outer tube 1, trunnion 2 and fuel inlet adapter 3 be sequentially connected the rear internal fuel channel with insertion with Used when being conveyed for fuel and/or combustion adjuvant, the fuel channel in trunnion 2 has the section of gradual change, i.e., the fuel channel at this Internal diameter gradually increases or reduced in the axial direction, and the fuel channel at this is at least partly round platform or off-centre operation mesa-shaped, and it is on edge Trapezoidal shape, preferably isosceles-trapezium-shaped on the section of axis；I.e.：Fuel channel internal diameter in trunnion 2 can reduce Maintain this internal diameter always afterwards, amplify again after a segment distance can also being maintained after diminution, can also amplify after reducing. Cone 4 is additionally provided with the trunnion 2, the cone 4 is slidably disposed in fuel channel, and its mode set can be A device is fixedly installed in fuel channel, cone 4 is slidably engaged in the device；Cone 4 is close to the gradual change section of trunnion 2 Place also has the section of gradual change and the outer wall surface of cone 4 is consistent with the incline direction of the inner wall surface of trunnion 2, cone 4 and trunnion 2 The part of cooperation can be cone or round platform (or eccentric round platform)；Adjusting means 5 is directly or indirectly connected and driven with cone 4 Its slip is moved, adjusting means 5, which is set, to be fixed on burner, and it has a drive mechanism and bindiny mechanism, and bindiny mechanism is straight Connecing or be connected indirectly with cone 4, drive mechanism is used for drive connection mechanism and moved so as to be slided with movable cone 4, and then, cone 4 can relative to trunnion 2 closer or far from；Specifically, adjusting means 5 can be by guide rod 51, worm screw lift 52, sealing Set 53 and other necessary component compositions, the guide rod 51 are directly or indirectly connected with cone 4, worm screw lift 52 Moved for drive leader 51, because worm screw lift 52 or miscellaneous part it is at least part of will be located at external environment in, And fuel channel needs and extraneous isolation, thus sealing shroud 53 is set to be used for isolation single channel burner and the external world.

In further embodiments, the single channel burner also includes scale, and the scale is arranged at single channel burner It is connected on outer wall and with cone 4, guide rod 51 or worm screw lift 52, the clearance gap of cone 4 and the inwall of trunnion 2 can be shown From or annular region area.Scale can make operator intuitively know gap at that time when needed, so as to be advantageous to fire The use of glassware.

In some preferred embodiments, the single channel burner also includes inner tube 6, and said inner tube 6 is arranged in outer tube 1, Preferably it is arranged concentrically, cone 4 is slidably engaged in the one end of inner tube 6, so as to slidably fixing using inner tube 6 as cone 4 Device, both fit systems can be cone 4 have be slightly less than the internal diameter of inner tube 6 or the sliding part slightly larger than the external diameter of inner tube 6 Part.Support member 11 is provided between outer tube 1 and inner tube 6, support member 11 is used to inner tube 6 being firmly fixed in outer tube 1, support member 11 can be same outer tube 1 and inner tube 6 together cast complete can also manufacture respectively after be fixed together.It is in order that fixed More firmly, support member in general it is spaced apart need to set it is at least one, in 360 degree of directions of each set-point (the outer of inner tube 6 makes a circle) can be one, two or more；The quantity of support member 11 is 3,4 or more, support member 11 Direction be radially set or spiral set, the angle of rotation can be 17 degree to 60 degree gradual changes or solid Determine angle (such as 45 degree) setting.Such structure uses the circulating line between inner tube 6 and outer tube 1 as fuel channel And fuel is not conveyed inside inner tube 6, the support set along with the support member being arranged in the circulating line, particularly spiral Part, the fuel and/or the air motion mode of combustion adjuvant that can be exported to the fuel device have an impact, its caused flow-disturbing effect Fuel effect can be significantly improved, reduces fuel usage amount and discharge of poisonous waste amount.

In other preferred embodiments, the single channel burner also includes flowmeter, motor and controller；The flow Meter is arranged on fuel channel, and it can produce signal sensed from flux, is preferably also provided with display device (machinery or digital display) and side Just in good time flow is checked；The motor moves for directly or indirectly drive leader, passes through belt for example with general motor Or gear drives worm screw lift to rotate or directly drives guide rod using reciprocating motor substitution worm screw lift And then driving cone 4 to move, controller is used for the transducing signal for receiving flowmeter and motor work.So improved single-pass Road burner can individually in good time intelligent control its output fuel and/or combustion adjuvant speed, a son can also be used as System is incorporated to overall system control and carries out accurate Combustion System, so as to combine the in good time heat transfer agent of combustion chamber to fuel And/or the supply of combustion adjuvant carries out accurate control in good time.

Preferred embodiment one

A kind of dore furnace single channel burner, it is made up of outer tube 1, trunnion 2 and fuel inlet adapter 3, the outer tube 1, Trunnion 2 and fuel inlet adapter 3 are sequentially connected the rear internal fuel channel with insertion, and outer tube 1, trunnion 2 and fuel enter The mode connected between mouth adapter 3 can be welding, threaded connection or bolt connection；Fuel channel in trunnion 2 in round table-like, From fuel inlet adapter 3 to the direction of outer tube 1, its fuel channel internal diameter gradually increases, and it is in isosceles trapezoid on the section along axis Shape.The single channel burner also includes inner tube 6, and said inner tube 6 is concentrically disposed with outer tube 1, between outer tube 1 and inner tube 6 Provided with support member 11, support member 11 is used to inner tube 6 being firmly fixed in outer tube 1, and support member 11 can be same outer tube 1 and interior Pipe 6 together cast complete can also manufacture respectively after be fixed together.Support member 11 has three, and three support members divide at three Set, often place sets one, and support member 11 is radially set.Cone 4 is additionally provided with trunnion 2, cone 4 has two parts group Into, i.e. nose cone part and slide unit, conical head are divided into hollow or solid and cone, cone direction with inside trunnion 2 Round table-like fuel channel direction it is identical (both incline directions are consistent from section), slide unit external diameter is slightly less than The internal diameter of inner tube 6 is so as to being slidably matched with inner tube 6.Adjusting means 5 is used to drive cone 4 to slide, and it is by guide rod 51, whirlpool Wheel screw-threaded shaft elevator 52, sealing shroud 53, guide pin bushing (541,542) and strut 55 form；The side of outer tube 1 (supplies strut provided with opening Used when movable), two guide pin bushings (541,542) are arranged at the opening both sides along the axis direction of outer tube 1, two guide pin bushings (541, 542) it is used for slideably location guide 51, the guide pin bushing 542 close to worm screw lift 52 is arranged at sealing shroud exit, It is sealing guide pin bushing；Guide rod 51 is slidably engaged in two guide pin bushings (541,542), and strut 55 passes through the opening of outer tube 1 Both ends are fixedly connected with guide rod 51 and cone 4 respectively afterwards；The miscellaneous part of adjusting means 5 is enclosed in it by sealing shroud 53, is removed It is sealing outside that guide rod 51, which exports, and the exit is provided with sealing guide pin bushing 542, so sealing shroud and the sealing knot of guide pin bushing 542 It can play good sealing effectiveness after closing and not influence the normal slip of guide rod, realize slidable sealing.Cone 4 exists Can be relative to trunnion 2 closer or far from (being moved up and down in such as Fig. 2, left and right in Fig. 3 in the presence of worm screw lift 52 Motion), and then gap between the two can be adjusted, the fuel quantity for entering burner is adjusted.

During use with reference to shown in figure 1-3, turbine screw mandrel worm screw lift is adjusted, so that guide rod 51 is along the axle of outer tube 1 Line direction (vertical direction in Fig. 2) is moved, and in the presence of strut 55, cone 4 is also vertically moving；Nose cone part The gap of outer wall surface and the inner wall surface of trunnion 2 becomes big or diminished, so as to adjust the fuel quantity by burner.

Preferred embodiment two

A kind of dore furnace single channel burner, it is made up of outer tube 1, trunnion 2 and fuel inlet adapter 3, the outer tube 1, Trunnion 2 and fuel inlet adapter 3 are sequentially connected the rear internal fuel channel with insertion, and outer tube 1, trunnion 2 and fuel enter The mode connected between mouth adapter 3 can be welding, threaded connection or bolt connection；Fuel channel dumbbell shaped in trunnion 2, its It is made up of two round platforms and a cylinder among two round platforms.The single channel burner also includes inner tube 6, said inner tube 6 are concentrically disposed with outer tube 1, being provided with support member 11 between outer tube 1 and inner tube 6, and support member 11 is used for inner tube 6 securely It is fixed in outer tube 1, support member 11 can be that same outer tube 1 and inner tube 6 together cast that complete can also be solid after manufacture respectively It is scheduled on together.Support member 11 has three, is set at three support members point three, often place sets one, and support member 11 is radially Set.Cone 4 is additionally provided with trunnion 2, cone 4 is made up of two parts, i.e. round platform part and slide unit, and round platform part is hollow Or solid and round platform, (both inclinations from section identical with the round table-like fuel channel direction inside trunnion 2 of round platform direction Direction is consistent), slide unit external diameter is slightly less than the internal diameter of inner tube 6 so as to slidably be matched with inner tube 6.The combustion Material inlet connection 3 includes spherical shell 31 and inlet tube 32, and inlet tube 32 is located at the side of spherical shell 31, along the axis side of outer tube 1 on spherical shell 31 (pass through to provided with opening for guide rod 51).Adjusting means 5 is used to drive cone 4 to slide, and it is lifted by guide rod 51, worm screw Machine 52 and sealing shroud 53 form, and the one end of guide rod 51 and the round platform part of cone 4 link together, and both can be after manufacturing respectively It is fixed together by modes such as welding, screw threads or integrally manufactured, the other end of guide rod 51 and worm screw lift 52 are connected, and guide rod 51 is arranged on the axis of outer tube 1, and it is connected with worm screw lift 52 after passing through the opening and can be at it Lower slider is driven, sealing shroud is arranged at the opening of spherical shell 31, for playing a part of sealing to the opening, in its effect Under, guide rod 51, which seals slidingly against, is matched with spherical shell 31.

During use with reference to shown in figure 4-5, turbine screw mandrel worm screw lift is adjusted, so as to drive guide rod 51 is front and rear to transport Dynamic, cone 4 also moves forward and backward；The round platform outer wall surface of cone 4 and the gap of the inner wall surface of trunnion 2 become big or diminished, So as to adjust the fuel quantity by burner.

Single channel burner of the present utility model can significantly reduce novel dry-method cement clinker production line ton clinker mark coal The discharge capacity of consumption and NOx, compared with conventional burners, is reduced using the ton clinker mark coal consumption of burner of the present utility model More than 3kg, NOx discharge capacity reduce by more than 30%, and out-of-stock cost reduces by 60% --- and 100%, ton clinker cost can reduce 5 --- 20 yuan.Reduce NOx discharge capacity, it is possible to reduce the out of stock usage amount with ammoniacal liquor or urea, reduce the escaping of ammonia, particularly The generation for mitigating haze is very beneficial！

It is described above merely to the exemplary illustration conveniently made of description, not certainly to protection model of the present utility model Enclose produce it is certain, directly limit；For example, for trunnion and cone setting direction and mutual position relationship simultaneously It is not limited to the mode of foregoing description；Those skilled in the art know, any normal according to made by design of the present utility model Accommodation, the replacement of rule should all belong to the scope of protection of the utility model.

Claims (9)

1. a kind of dore furnace single channel burner, it includes outer tube (1) and fuel inlet adapter (3)；It is characterized in that, described Single channel burner also includes trunnion (2), and the outer tube (1), trunnion (2) and fuel inlet adapter (3) are interior after being sequentially connected Portion has the fuel channel of insertion, and the fuel channel in trunnion (2) has the section of gradual change, and cone is additionally provided with the trunnion (2) Body (4), the cone (4) are slidably disposed in fuel channel, and cone (4) also has at trunnion (2) gradual change section There is the section of gradual change and cone (4) outer wall surface is consistent with the incline direction of trunnion (2) inner wall surface, adjusting means (5) is straight Connect or be connected indirectly with cone (4) and can drive its slip.

2. dore furnace according to claim 1 single channel burner, it is characterised in that the adjusting means (5) includes Guide rod (51), worm screw lift (52) and sealing shroud (53), the guide rod (51) directly or indirectly with cone (4) phase Even, worm screw lift (52) be used for drive leader (51) move, sealing shroud (53) be used for isolation single channel burner with It is extraneous.

3. dore furnace according to claim 2 single channel burner, it is characterised in that the adjusting means (5) is also wrapped Include two guide pin bushings (541,542) and a strut (55), outer tube (1) side is provided with opening, and two guide pin bushings (541,542) are along outer tube (1) axle Line direction is arranged at the opening both sides, and guide rod (51) is slidably engaged in two guide pin bushings (541,542), and strut (55) passes through Both ends are fixedly connected with guide rod (51) and cone (4) respectively after the opening of outer tube (1).

4. dore furnace according to claim 2 single channel burner, it is characterised in that the fuel inlet takes over (3) Including spherical shell (31) and inlet tube (32), inlet tube (32) is located at spherical shell (31) side, along outer tube (1) axis side on spherical shell (31) It is connected to provided with opening, the guide rod (51) after passing through the opening with worm screw lift (52)；The guide rod (51) one The other end that is connected with cone (4) is held to be connected with worm screw lift (52).

5. the dore furnace single channel burner according to claim any one of 1-4, it is characterised in that the single channel combustion Burner also includes inner tube (6), and said inner tube (6) is concentrically disposed with outer tube (1), and branch is provided between outer tube (1) and inner tube (6) Support member (11), the support member (11) is same outer tube (1) and inner tube (6) is together cast or is fixed together after manufacturing respectively 's.

6. dore furnace according to claim 5 single channel burner, it is characterised in that the quantity of the support member (11) 3,4 or more, the direction of support member be radially set or spiral set, spiral set angle be In the range of 17 degree to 60 degree gradual change or fixed angle value.

7. the dore furnace single channel burner according to claim any one of 1-4, it is characterised in that the single channel combustion Burner also includes scale, the scale be arranged on single channel burner outer wall and with cone (4), guide rod (51) or worm screw Lift (52) is connected, and it can show the clearance distance of cone (4) and trunnion (2) inwall or the area of annular region.

8. the dore furnace single channel burner according to claim any one of 1-4, it is characterised in that the single channel combustion Burner also includes flowmeter, and the flowmeter is arranged on fuel channel.

9. dore furnace according to claim 8 single channel burner, it is characterised in that the single channel burner also wraps Motor and controller are included, the motor moves for directly or indirectly drive leader, and controller is used for the biography for receiving flowmeter Feel signal and motor work.