CN101603692A - Novel large reciprocating grate isobaric air supplying and suspension active propelling unit - Google Patents
Novel large reciprocating grate isobaric air supplying and suspension active propelling unit Download PDFInfo
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- CN101603692A CN101603692A CNA2009100171305A CN200910017130A CN101603692A CN 101603692 A CN101603692 A CN 101603692A CN A2009100171305 A CNA2009100171305 A CN A2009100171305A CN 200910017130 A CN200910017130 A CN 200910017130A CN 101603692 A CN101603692 A CN 101603692A
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Abstract
Novel large reciprocating grate isobaric air supplying of the present invention and suspension active propelling unit relate to and utilize aerodynamic principle, theory of mechanics, belong to International Classification of Patents F23L " industry air-supply " technical field.On 14MW-700MW large scale industry reciprocating-grate boiler, be the device of enforcement isobaric air supplying and suspended swinging propelling, and the new problem that produces, new subject knowledge combination, new Mathematical Modeling notion.The digital module combination is not subjected to the large reciprocating grate boiler, constantly develops the reciprocal grate transverse width dimension restriction of widening; And on the large reciprocating grate boiler, implement the reciprocating motion of suspended swinging and the sealing of dynamic independent air compartment.Realize the large reciprocating grate boiler to reach, horizontal, vertically burning under the great fluctuation process operating condition, the chain at random regulation and control of necessary isobaric air supplying collect control with central authorities; Many group separate units constitute, the reciprocal grate bearing load under the super width dimensions state, difficult point problems such as reciprocating motion synchronously.Be that energy-conservation, efficient burning problem becomes core of the present invention at the solution large reciprocating grate boiler down that imposes a condition.
Description
Technical field
The present invention relates to utilize aerodynamic principle, theory of mechanics, implement the device that isobaric balanced ventilation and suspension active advance dress, belong to International Classification of Patents F23L " industry is blown " technical field at large-scale 14-700MW industry reciprocating-grate boiler.
Background technology
In this field prior art, the furnace grate of small-sized coal-fired reciprocating-grate boiler is generally used for below the 14MW; For many years away from market.Because of reciprocating-grate boiler is applicable to colm, plant fuel, when the lack of energy crisis, pay close attention to again for everybody institute again.Thereby do not stint the furnace grate of reciprocating-grate boiler of plant fuel of huge fund introduction of foreign technology, be generally used for the following boiler of 46MW.No matter adopt the traditional manufacture or the foreign technology of introduction, all exist because of structural design, uneven air burn out that fire grate segment, mechanical breakdown are frequent, temperature distortion, operation are asynchronous, fatal design defect such as operation stability difference.Therefore people wish in the foreign technology of introducing more and more heavier machinery to be dragged, and change hydraulic pressure into and drag; No air compartment changes the segmentation air compartment into, solves the uneven air problem, but can't resolve frequent mechanical breakdown, isobaric air supplying and chain at random regulation and control problem.The heat-resisting alloy fire grate segment that introduction involves great expense, replace traditional reciprocating furance row, but can't resolve coal-fired reciprocating-grate boiler isobaric air supplying, with burn the sheet problem, become the reciprocating-grate boiler that only can be used for plant fuel, can not be used for the reciprocating-grate boiler of coal-fired fuel.Therefore must solve, restrict maximization design, the historical difficult point problem of manufacturing of coal-fired reciprocating-grate boiler for a long time, adapt to the needs of future development.
Before the present invention, also do not retrieve the feasibility technical method that similarly is used to solve large-scale or the coal-fired reciprocating-grate boiler of ultra-large type at present; Maybe can be used for coal-fired large-scale or ultra-large type reciprocating-grate boiler, solve the isobaric air supplying technology of uneven air problem, improve the burning operating condition and the boiler operatiopn thermal efficiency.Still there be fire grate segment, leakage coal, the fluctuation of service problem of burning out in prior art.And transmission, promotion mechanical breakdown are frequent, reciprocating actuator, and electric energy power is big, and the condition restriction of temperature distortion, structural design etc. causes many fatal technology manufacturing defect, has restricted the large scale development of reciprocating-grate boiler.Although people try every possible means to improve all the time, can not find the effective ways that address the aforementioned drawbacks before this.China is to be the country of main energy sources with the fire coal, and historical energy waste and destructive exploitation cause domestic limited lack of energy at present, low heat value coal resource, plant fuel, more apparent important of the comprehensive utilization of waste fuel.The above large-scale or ultra-large type reciprocating-grate boiler of development 14MW-700MW that faces the future is used inexorable trend, and the problems referred to above are the not enough and critical defect problems of left over by history, have seriously restricted the large scale development of following reciprocating-grate boiler.
Summary of the invention
One, the present invention, the purpose of novel large reciprocating grate isobaric air supplying and suspension active propelling unit is:
1. according to aerodynamic principle, coal-fired industry chain grate boiler design principle, the maximization of the above reciprocating-grate boiler of 14-700MW or the large development that faces the future, and the new problem that produces is set up new subject knowledge combination, brand-new Mathematical Modeling notion.The digital module combination is not subjected to the large reciprocating grate boiler, constantly develops the size restrictions of the reciprocal grate transverse width 4-30 rice of widening.These technical measures, on my large-scale traveling-grate stoker isobaric air supplying engineering application technology basis, improved, solve the sealing of the dynamic independent air compartment of large-scale or ultra-large type reciprocating-grate boiler, chain at random regulation and control and many groups hang synchronously many technological difficulties problems such as back and forth promotion.For adapting to the restriction reciprocating-grate boiler maximization project organization problem that solves.
2. core of the present invention is a device of implementing new isobaric air supplying at the reciprocating-grate boiler that maximizes or large develops, is different from the combustion conditions condition of the isobaric air supplying of chain grate boiler; Again technological innovation in addition.Promptly yearn for load-bearing air channel, multiple bank boiler both sides air-supply, symmetrically arranged through two by air blast, reduce the air-supply cross section gradually along air supply direction, have two complete closed of static pressure auto-control function, independent variable cross-section isobaric air supplying road, built-in air distribution panel assembly and the pressure balance chamber that constitutes, its side is provided with, the uiform section side air-out mouth and the isobaric air compartment of novel independence of grouping randomly regulating constitute the complete isobaric air supplying device of a cover; Realize that vertically grouping is arranged, the equipressure that constitutes a cover reciprocating-grate boiler is from wind system.In the isobaric air channel of the variable cross-section of two symmetries and in the isobaric air compartment, fire grate laterally is provided with online static pressure test at random, interlock regulator control system.Be to overcome above-mentioned deficiency, a kind of efficient, energy-saving and cost-reducing, large reciprocating grate boiler isobaric air supplying device of realizing boiler ideal burning operating mode is provided.
3. core of the present invention is at the reciprocating-grate boiler that maximizes or large develops, adopt and dynamically hang totally enclosed independent segmented isobaric air compartment structure, in each independent segmented air compartment, independently air-supply all is housed detects and converter, the YE regulated and control, with central frequency converter interlocking; Implement the chain at random regulation and control of vertical burning and central authorities' collection control of boiler combustion.
4. core of the present invention is on reciprocating-grate boiler, adopts many groups independently, stable suspended swinging active propulsion adjustable shelf, dynamically the suspension swing type structure is arranged at fixedly in the middle of the spandrel girder, back and forth running orbit is spacing accurately, and operation is light and handy, and safety and steady, power performance are good.For what solve because of the reciprocal propulsion plant of machinery, the bearing load amount continues to increase and mechanical friction resistance strengthens, the exercise load super large, insurmountable mechanical movement, asynchronous, the unstable and mechanical breakdown that takes place frequently.For solving because of improving the operating thermal efficiency of reciprocating-grate boiler, continuous large scale development, cause the continuous development of fire grate width dimensions to strengthen, and the stability techniques difficult point problem of structural design load force that causes and Synchronous Transmission operation is the historic structural design difficult point problem that restriction is large-scale or the ultra-large type reciprocating-grate boiler develops.
5. core of the present invention is to adopt on reciprocating-grate boiler, and the moving beam element combination of grouping suspension type is provided with independent air compartment corresponding, sealing in the unit, adopts soft sealer to implement to fixing spandrel girder the dynamic seal (packing) of bottom equipressure air compartment.Solved the independent regulation and control of vertical grouping of boiler combustion, the objective of the invention is to solve reciprocating-grate boiler can not sectional combustion and restrict the historic problem that improves operating thermal efficiency.Explore the historical difficult point problem approach of vertically scurrying wind that has effectively solved between the independent air compartment of each in the combustion process, realize the boiler sectional combustion, reach and improve the boiler operatiopn efficiency of combustion.The bottom of grouping suspended swinging beam element combination, employing, stressed load-bearing rolling stopping means; Guarantee track accurate positioning, the security of operation of back and forth operation.
(2), according to the combustion mechanism of large reciprocating grate boiler, constantly the reciprocal grate width dimensions of the development inevitable development trend of constantly widening adopts according to structural mechanics, organizes the bearing beam fixed grate device of structural design more.Widening not because of the reciprocal grate width dimensions, and influence the mechanical strength and the thermal stress deformation of fixed grate device, core of the present invention is to make up all heated parts and adopt water-cooling circulating systems at fixing spandrel girder, the moving beam element of grouping suspension type, guarantees operating temperature constant in design temperature numerical value.Solved the temperature distortion problem of restriction reciprocal grate large scale development effectively.Different active and passive fire grate segments is adopted in different combustion zones, promotes movable furnace grate plate and implements back and forth to promote on fixed grate film, makes bunker coal finish the combustion function that rolls.Many groups synchronously, horizontal along fire grate if a unit numeral stack combinations, the restriction that not continued to increase by the fire grate width dimensions, the combination of multiple spot, the built-in beam of organizing stressed support and suspension active frame unit mechanisms more, be structural design and the bearing load problem that solves large-scale or ultra-large type reciprocating-grate boiler, solve the load-bearing temperature distortion of large reciprocating grate boiler heavy load, and produce the machine driving failure problems of not even running of machinery, asynchronous operation.
(3), adopt the grey cast-iron of special designs, back and forth the structural design of fire grate screening and passive fire grate segment, secondary screening initiatively is to solve large-scale or ultra-large type reciprocating-grate boiler, the ventilation and the heat dissipation problem of the combustion furnace screening of different burning blocks.Be for solving coal-fired large-scale or ultra-large type reciprocating-grate boiler, burn fire grate segment and leak coal, leak out and the historic technical barrier that produces.
Technical scheme
1. face the future, realize large-scale or the development of ultra-large type reciprocating-grate boiler, the coal-burning boiler combustion mechanism defines burning area and constantly increases when developing, defining of longitudinal size, the fire grate width dimensions constantly develops into inevitable development trend, the isobaric air supplying problem in the variable cross-section air channel of isobaric air supplying becomes research focus, and being becomes the core technology that the present invention will solve at the horizontal combustion problem of solution boiler that imposes a condition.
Realize large reciprocating grate boiler isobaric air supplying, must adapt to the great fluctuation process operating condition of large reciprocating grate boiler, at the large reciprocating grate boiler, the combustion conditions under central authorities' collection control condition, the online variation regulation and control of combustion air amount; Promptly under air quantity, the blast set do not become prerequisite, control the isobaric air supplying mode of dynamic pressure, maintenance static balance.Guarantee the variable cross-section isobaric air supplying road of two symmetries, under the partition of air channel, isobaric air compartment intermediate isolating plate, the required air that will burn uniformly along both sides is sent into isobaric air compartment.Must make that the static pressure of grouping uiform section side opening is that static pressure on the total length of whole air channel remains unchanged; The discharge coefficient of each side air-out mouth or coefficient of partial resistance equate; The direction that also will make the air-flow of sending as far as possible with the axis normal in air channel, promptly the angle of departure of air-flow is big as far as possible.In order to keep the static pressure on the total length of air channel constant, must make air channel head end speed greater than tip speed, and make head end and terminal dynamic pressure poor (or the dynamic pressure between two side holes is poor) equal the pressure loss on the total length of air channel.
Meanwhile, also must change the cross section along the length direction in air channel; That is to say that the cross section in air channel should little by little dwindle towards end direction.Because of the flow velocity static pressure produces that descends regains,, make reduced cross-sectional the static pressure of affluence be converted into dynamic pressure so have to along the air-flow direction of advance often greater than the pressure loss in air channel; Only in this way just can make the static pressure on the total length of air channel keep constant.According to aerodynamic principle, boiler combustion design specification, the nonlinear mathematical model that changeable at random factor in the boiler combustion system engineering causes, must make blast, the wind speed of each the side opening air-out of isobaric air channel equate, the static pressure in isobaric air channel obtains the online at random regulation and control of measures for balance and isobaric air compartment, could adapt to the fluctuation that combustion conditions changes, realize the air supply mode of the horizontal burning isobaric air supplying of large-scale or the isobaric air compartment of ultra-large type reciprocating-grate boiler.
2. solve vertical, the horizontal isobaric air supplying problem and the online regulation and control problem of the isobaric air compartment of realizing large reciprocating grate boiler isobaric air supplying.
Realize large reciprocating grate boiler isobaric air supplying, must guarantee reciprocating-grate boiler, air quantity, the blast of the outlet of fire grate bar seam equate, could guarantee efficient, the energy-saving combustion operating mode of industrial chain furnace grate.
The isobaric air compartment of large reciprocating grate boiler stove, two that must take the intermediate isolating plate to cut off seal independent air compartment fully, must have the independent air compartment of voltage regulation function voluntarily but be provided with 2-30 along the fire grate cross section in two isobaric air compartments simultaneously.External 2-30 online detection converter, YE system control the prismatic crosswind mouth of grouping in isobaric air channel, the air door levelling mechanism of air-supply regulation and control blast, air quantity.(cross section, also manual air port governor motion) guarantees rationally ash exhauster easily.Implement the horizontal combustion conditions of boiler of online regulation and control chain grate boiler main combustion chamber, large reciprocating grate boiler isobaric air supplying device is provided with and is no less than 5 external converter, YE, implements the vertical combustion conditions of regulation and control boiler.Above-mentioned large scale industry boiler isobaric air supplying device and central frequency converter are chain, form central authorities' collection control of large reciprocating grate boiler operatiopn.
3, the movable advance frame of suspended swinging all adopts dynamic full-sealing device with independent air compartment.
Core of the present invention is on reciprocating-grate boiler, adopts many groups independently, the suspended swinging active propulsion adjustable shelf of safety and stability, and dynamic suspension swing type structure is arranged at fixedly in the middle of the spandrel girder, and back and forth running orbit is spacing accurate.Constantly the burning area of the large reciprocating grate boiler of development continues to increase, and is subjected to the restriction of coal-burning boiler combustion mechanism, have only the fire grate of increasing transverse width dimension, and the design of the structural mechanics of horizontal load-bearing has restricted the development of large reciprocating grate boiler.The load-bearing built-in beam of multiple spot fixed support is set because of many groups, it is the structural mechanics design that solves horizontal load-bearing, restricted the development difficult point problem unique channel of large reciprocating grate boiler, tens of groups of suspended swinging bars, decompose labyrinth mechanics design bearing load, solved the operation stability problem of reciprocating-grate boiler.The Any Digit unit combination is not subjected to the restriction of fire grate width dimensions development; Hanging and swinging and the mechanics force structure combination that back and forth promotes have been solved.
In the movable advance frame of suspended swinging, be provided with the isolating seal plate of relatively independent isobaric air compartment position, be provided with sealing device, adopt soft sealing structure, guarantee the corresponding seal request under each independent isobaric air compartment dynamic condition with relative position such as fixing spandrel girder.
5., core of the present invention is on reciprocating-grate boiler, adopt many groups independently, the active propulsion adjustable shelf of safety and stability, dynamically the suspension swing type structure is arranged at fixedly in the middle of the spandrel girder, back and forth running orbit is spacing accurately, constantly the width dimensions of the large reciprocating grate boiler of development continues to increase, and organizes Synchronous Transmission and the long-term safety stable operation problem of replanting lotus more, is the historical difficult point problem of large scale development of restriction reciprocating-grate boiler.The present invention is in conjunction with the mechanical structure design of hanging and swinging motion, adopts the coaxial revolution eccentric wheel of many groups, advances four connecting rod transmissions of rocking bar, guaranteed the large reciprocating grate boiler, because of different combustion conditions, and the reciprocal propelling requirement that specified conditions are provided with down.Reciprocating-grate boiler advances size 60-300mm.Be to solve synchronous revolution, hanging and swinging and the carrying of horizontal heavy load, fault-free accurately back and forth advances the unique technical approach.
Security of operation is stable, light and handy, good dynamic property.For the bearing load that solves because of the reciprocal propulsion plant of machinery strengthens, strengthens with mechanical friction resistance, exercise load moment super large causes insurmountable mechanical movement instability and the mechanical breakdown that takes place frequently.For solving because of improving the operating thermal efficiency under the desirable operating mode of reciprocating-grate boiler, constantly large scale development causes the continuous increasing of fire grate width dimensions.The present invention be for the reciprocating motion load of untiing structural design carry power with the stability techniques difficult point problem of Synchronous Transmission operation, also be the historic difficult point problem that restriction is large-scale or the ultra-large type reciprocating-grate boiler develops.
6, core of the present invention is fall ash and the discharging at large-scale or ultra-large type reciprocating-grate boiler, the development that continues to increase with the transverse width dimension of reciprocal grate, no matter be ash method traditional or that introduce, all be not suitable for large-scale or ultra-large type reciprocating-grate boiler burning ash discharge operating condition.The present invention is at large reciprocating grate burn front section, end according to boiler combustion mechanism, along reciprocal grate cross section total length, the scraper-type revolution chain-drive mechanism of lower position is set, be not subjected to the development restriction of reciprocal grate width dimensions, implement the uninterrupted ash discharge in the full duration size range at random, guarantee the reciprocating-grate boiler security of operation.It is the effective technology measure that solves the boiler operatiopn accident risks that reciprocating-grate boiler causes because of dust stratification.
7, core of the present invention is the draft type and the configuration of the active and passive fire grate segment of or ultra-large type reciprocating-grate boiler large-scale at fire coal.Be the basis of burning that solves reciprocating furance row, isobaric air supplying be solve reciprocating furance row burn one of important means.And the key factor of the draft type of reciprocating furance row design and configuration also to be influence coal-fired large-scale or ultra-large type reciprocating-grate boiler combustion conditions is the major reason that solves the problem of burning of reciprocating furance row.
According to the coal-burning boiler combustion mechanism, the preheating and drying section of or ultra-large type reciprocating-grate boiler large-scale at fire coal, reciprocating furance row are to leak coal and ventilation in the main factor that influences efficiency of combustion of this burning zone.Width dimensions surpasses 230 millimeters, and large stretch of reciprocating furance row of the front air outlet of four layers of setting effectively prevents the leakage coal that causes because of ventilation.The layering air-supply ensures that the burning in this section coal seam promotes, needs roll, blow in the coal seam thickness scope.
According to the coal-burning boiler combustion mechanism, the volatilization of or ultra-large type reciprocating-grate boiler large-scale, separate out section, coke burning block at fire coal, adopt the narrow air duct slats seam of 20-50 millimeter to add four layers of front air outlet reciprocating furance row, ensured that this burning block required air ventilation is big, the needs that promote, roll and blow, ensured the optimal ventilation of fire grate segment and self cooling, anti-leak-stopping coal.Prevent effectively that because of the burning ventilation is little ignition temperature is high and cause the fire grate segment burning phenomenon.
According to the coal-burning boiler combustion mechanism, the burning-out zone of or ultra-large type reciprocating-grate boiler large-scale at fire coal, width dimensions surpasses 230 millimeters, and the reciprocating furance row of four layers of setting can effectively solve lime-ash and leak out and the promotion problem.
1. embodiment structure: novel large reciprocating grate isobaric air supplying and suspension active propelling unit, the front end of large reciprocating grate, the top of fire grate segment is provided with layering coal bunker (1), the lower end of large reciprocating grate is provided with scraper-type ash discharging gear (4), for the reciprocal grate coal supply and connect front panel (2), biside plate (3), biside plate (3) top is welded with suspended axle device (10), connect suspended swinging bar (11), the interior connection organized load-bearing stationary furnace framed bents (5) more, biside plate (3) is gone up and is connected many group connection crossbeams (6), stressed load-bearing rolling stopping means (7), load-bearing limited roller (8), side sealing block (9) is equipped with in inboard, biside plate upper end, connect load-bearing stationary furnace framed bent (5) in the biside plate (3), the tops that many group load-bearing stationary furnace framed bents (5) the are set load-bearing water circulation cooling device (12) that is heated, the both sides, upper end are provided with many group horizontal tie-beams of water-cooled (13) and connect biside plate (2), water bar stationary pipes (14), the fillet seam is set adds fixedly reciprocating furance row (15) of four layers of front air outlet, the sheet of the front air outlet that front end is provided with is reciprocating furance row (16) fixedly, the large stretch of fixedly reciprocating furance row (17) in the rear end that is provided with, connect isobaric air compartment (18) in the biside plate (3), variable cross-section air delivery duct (19), biside plate (3) outside connects load-bearing air delivery duct (20), the air register of built-in independent air compartment (21), RANDOM WIND compression testing device (22), converter A (23), YE A (24), connect central authorities' collection control, implement the vertically automated randomized regulation and control of burning of boiler, be provided with air distribution plate (26) in the variable cross-section air delivery duct (19), arrange the wind deflector (25) that is 60-110 degree angle along air supply direction, be provided with intermediate isolating plate (27) in the middle of the variable cross-section air delivery duct (19) of the setting of two symmetries, the side of variable cross-section air delivery duct (19) is provided with grouping uiform section side air-out mouth (28), prismatic side air-out mouth control set for adjusting (29) at random divides into groups, connect YE B (32) the grouping uiform section side air-out mouth outside air distribution outlet (31) is housed, in be provided with air distribution plate (26) and middle partition panel (29) the centre be provided with central dividing plate A (34) and isolate and become four independent pressure balance chambers (30), to both sides, variable cross-section air delivery duct (19) the air-supply static balance of two symmetries is regulated, the side of variable cross-section air delivery duct (19) is provided with the prismatic side air-out mouth of grouping (28) and connects isobaric air compartment (18), isobaric air compartment (18) bottom is provided with the ash exhauster (37) that has sealing function, sealing device (33), the laterally middle intermediate isolating plate (39) that is provided with in the isobaric air compartment, be provided with 2-30 in the isobaric air compartment and have the independent air compartment (38) of voltage regulation function voluntarily, 2-30 isobaric air compartment is wind pressure detection device (35) at random laterally, beam wind is pressed converter B (36) and prismatic side air-out mouth control set for adjusting (29) at random that divides into groups, connect YE (32) and realize the laterally chain control of burning air-supply, reach the lateral center collection control of sectional combustion air compartment, the afterbody air compartment is provided with the air distribution device (40) of balanced ventilation, the inboard that many group load-bearing stationary furnace framed bents (5) are set is provided with suspended swinging adjustable shelf (41), the weight bearing area that is heated of the walking beam of suspended swinging (41) adopts water circulation cooling, the walking beam of suspended swinging (41) is gone up the longeron both sides and is provided with symmetrical, corresponding top is welded with suspended axle device (42), with the upper end of many groups load-bearing stationary furnace framed bent (5) many group load-bearing fixed mount suspended axle devices (55) are set, connect suspended swinging bar (11), constitute the suspended swinging of reciprocal grate, reciprocal active propulsion unit, the both sides, upper end of the adjustable shelf of suspended swinging (41) are provided with many group horizontal tie-beams of water-cooled adjustable shelf (43), water-cooled adjustable shelf fire grate segment stationary pipes (44), corresponding air compartment position is provided with many group totally-enclosed division boards (47) in the adjustable shelf of suspended swinging (41), soft sealer (48) is provided with totally-enclosed dynamic sealing means (49) with the interior corresponding air compartment position of many group load-bearing stationary furnace framed bents (5), constitute the dynamic seal (packing) structure of isobaric air compartment, the bottom front of the walking beam of suspended swinging (41) is welded with reciprocal promotion horizontal connecting plate (45), active pin shaft (46), the top of the adjustable shelf of suspended swinging (41) the load-bearing water circulation cooling device (50) that is heated, the bottom is provided with rolling location-plate (51), stiffener (52), stressed crossbeam (53), strengthen square tube A (54), connect crossbeam (65), strengthen square tube B (66), large stretch of reciprocating furance row (56) the fillet seam of the active of the front air outlet that water-cooled adjustable shelf fire grate segment stationary pipes (44) front end is provided with adds initiatively reciprocating furance row (57) of four layers of front air outlet, the large stretch of reciprocating furance row (58) of active of rear end is set, dragging motor, reduction box (59), the final drive shaft (61) of drive installation in spring bearing (60), many groups are eccentric drive wheel (62) fixedly, drive and promote connecting rod (63), spacing ring (64) connects active pin shaft (46), back and forth promote horizontal connecting plate (45), the walking beam of suspended swinging (41) is realized the initiatively synchronous reciprocating motion of fire grate segment of reciprocal grate, advances, promote coal fuel roll combustion purpose.
Beneficial effect
Novel large reciprocating grate isobaric air supplying of the present invention and suspension active propelling unit are the devices of implementing isobaric air supplying and suspension active propelling dress at large-scale 14-700MW industry reciprocating-grate boiler, improve the boiler combustion efficiency of colm, plant fuel.Explore the horizontal burning that realizes the large reciprocating grate boiler, central authorities' collection control of vertically burning, reach efficient, energy-conservation.Be large-scale or the ultra-large type reciprocating-grate boiler, maximizing manufactures and designs and effective measures under desirable combustion conditions.
Description of drawings
Among the figure: 1, layering coal bunker, 4, the scraper-type deslagging device, 18, isobaric air compartment, 47, totally-enclosed division board, 56, the large stretch of reciprocating furance row of the active of front air outlet, 57, the fillet seam adds initiatively reciprocating furance rows of four layers of front air outlet, 58, the large stretch of reciprocating furance row of active of rear end.
Accompanying drawing 2 is side views of accompanying drawing 1.
Among the figure: 9, side sealing block, 10, the suspended axle device, 11, the suspended swinging bar, 28, grouping uiform section side air-out mouth, 29, side air-out mouth control set for adjusting at random.
Among the figure: 19, the variable cross-section air delivery duct, 21, air register, 22, the RANDOM WIND compression testing device, 23, converter A, 25, the wind deflector at 60-110 degree angle, 26, the air distribution plate, 27, the intermediate isolating plate, 30, independent pressure balance chamber, 31, air distribution outlet, 32, YE B, 33, sealing device, 34, central dividing plate A, 35, isobaric air compartment is wind pressure detection device at random laterally, and 36, beam wind is pressed converter B, 37, the ash exhauster of sealing function, 38,2-30 has the independent air compartment of voltage regulation function voluntarily, 39, the intermediate isolating plate, 40, the air distribution device of balanced ventilation.
Accompanying drawing 4 is A-A cross-sectional schematic of accompanying drawing 1
Among the figure: 15, the fillet seam adds fixedly reciprocating furance row of four layers of front air outlet, 16, the fixing reciprocating furance row of the sheet of front air outlet, 17, the large stretch of fixedly reciprocating furance row in rear end, 55, load-bearing fixed mount suspended axle device, 59, dragging motor, reduction box, 61, final drive shaft.
Accompanying drawing 5 is E-E cross-sectional schematic of accompanying drawing 2
Among the figure: 41, the adjustable shelf of suspended swinging, 42, the suspended axle device, 45, back and forth promote horizontal connecting plate, 46, active pin shaft, 50, the load-bearing water circulation cooling device that is heated, 51, the rolling location-plate.
Accompanying drawing 6 is schematic top plan view of accompanying drawing 5
Among the figure: 52, stiffener, 53, stressed crossbeam, 54, strengthen square tube A, 65, connect crossbeam, 66, strengthen square tube B.
Among the figure: 3, biside plate, 5, load-bearing stationary furnace framed bent, 12, the top load-bearing water circulation cooling device that is heated, 13, the horizontal tie-beam of water-cooled, 14, the water bar stationary pipes.
Among the figure: 6, connect crossbeam, 7, stressed load-bearing rolling stopping means, 8, the load-bearing limited roller.
Among the figure: 48, soft sealer, 49, totally-enclosed dynamic sealing means.
Accompanying drawing 10 is D enlarged diagrams of accompanying drawing 4
Among the figure: 60, spring bearing, 64, spacing ring.
Accompanying drawing 11 is C enlarged diagrams of accompanying drawing 5
Among the figure: 43, the horizontal tie-beam of water-cooled adjustable shelf, 44, water-cooled adjustable shelf fire grate segment stationary pipes.
Accompanying drawing 12 is F enlarged diagrams of accompanying drawing 5
Among the figure: 62, the fixing eccentric drive wheel of many groups, 63, the promotion connecting rod.
Accompanying drawing 13 is H-H cross-sectional schematic of accompanying drawing 1
Among the figure: 2, front panel, 20, the load-bearing air delivery duct.
The specific embodiment
Novel large reciprocating grate isobaric air supplying of the present invention and suspension active propelling unit, relate to and utilize the aerodynamic principle that purifies central air-conditioning, the burning design specification of reciprocating-grate boiler, at large-scale reciprocal chain grate boiler, implement isobaric air supplying and suspension active propelling unit, purpose implement to be improved blast that reciprocating-grate boiler restricts its large scale development historical knotty problem of blowing, the bearing load of reciprocating machine motion, thermal stress load metamorphism problem, big machinery moves back and forth asynchronous, the frequent boiler operatiopn instability problem of mechanical breakdown.Machinery of the present invention move back and forth implement to be achieved in that final drive shaft (61) spring bearing (60) in of dragging motor, reduction box (59) drive installation, many groups fixedly eccentric drive wheel (62), drive promote that connecting rod (63), spacing ring (64) connect active pin shaft (46), the walking beam (41) that back and forth promotes horizontal connecting plate (45), suspended swinging realizes the initiatively synchronous reciprocating motion of fire grate segment on fixing reciprocating furance row of reciprocal grate, propelling, promotion coal fuel roll combustion purpose.Constituting mechanical reciprocating structure is: the front end of large reciprocating grate, the top of fire grate segment is provided with layering coal bunker (1), the lower end of large reciprocating grate is respectively equipped with scraper-type ash discharging gear (4) and is reciprocal grate coal supply and connect front panel (2), biside plate (3), biside plate (3) top is welded with suspended axle device (10), connect suspended swinging bar (11), the interior connection organized load-bearing stationary furnace framed bents (5) more, biside plate (3) is gone up the many groups of welding and is connected crossbeam (6), stressed load-bearing rolling stopping means (7), load-bearing limited roller (8), side sealing block (9) is equipped with in inboard, biside plate upper end, connect tops that load-bearing stationary furnace framed bent (5) is provided with many group load-bearing stationary furnace framed bents (5) the load-bearing water circulation cooling device (12) that is heated in the biside plate (3), the both sides, upper end are provided with many group horizontal tie-beams of water-cooled (13) and connect biside plate (2), water bar stationary pipes (14), the fillet seam adds fixedly reciprocating furance row (15) of four layers of front air outlet, the sheet of the front air outlet that front end is provided with is reciprocating furance row (16) fixedly, the large stretch of fixedly reciprocating furance row (17) in the rear end that is provided with, connect isobaric air compartment (18) in the biside plate (3), variable cross-section air delivery duct (19), biside plate (3) outside connects load-bearing air delivery duct (20), the air register of built-in independent air compartment (21), RANDOM WIND compression testing device (22), converter A (23), YE A (24) connects central authorities' collection control and implements the vertically automated randomized regulation and control of burning of boiler, be provided with air distribution plate (26) in the variable cross-section air delivery duct (19), arrange the wind deflector that is 60-110 degree angle (25) that strengthens gradually along air supply direction, be provided with intermediate isolating plate (27) in the middle of the variable cross-section air delivery duct (19) of the setting of two symmetries, the side of variable cross-section air delivery duct (19) is provided with grouping uiform section side air-out mouth (28), prismatic side air-out mouth control set for adjusting (29) at random divides into groups, connect YE B (32) the grouping uiform section side air-out mouth outside air distribution outlet (31) is housed, in be provided with air distribution plate (26) and middle partition panel (29) the centre be provided with central dividing plate A (34) and isolate and become four independent pressure balance chambers (30), to both sides, variable cross-section air delivery duct (19) the air-supply static pressure of two symmetries is regulated, the side of variable cross-section air delivery duct (19) is provided with the prismatic side air-out mouth of grouping (28) and connects isobaric air compartment (18), isobaric air compartment (18) bottom is provided with the ash exhauster (37) that has sealing function, the laterally middle intermediate isolating plate (39) that is provided with in the isobaric air compartment of sealing device (33), be provided with 2-30 in the isobaric air compartment and have the independent air compartment (38) of voltage regulation function voluntarily, 2-30 isobaric air compartment is wind pressure detection device (35) at random laterally, beam wind is pressed converter B (36) and prismatic side air-out mouth control set for adjusting (29) at random that divides into groups, connect YE (32) and realize the laterally chain control of burning air-supply, reach the lateral center collection control of sectional combustion air compartment, the afterbody air compartment is provided with the air distribution device (40) of balanced ventilation, the inboard that many group load-bearing stationary furnace framed bents (5) are set is provided with suspended swinging adjustable shelf (41), the weight bearing area that is heated of the walking beam of suspended swinging (41) adopts water circulation cooling, the walking beam of suspended swinging (41) is gone up the longeron both sides and is provided with symmetrical, corresponding top is welded with suspended axle device (42), with the upper end of many groups load-bearing stationary furnace framed bent (5) many group load-bearing fixed mount suspended axle devices (55) are set, connect suspended swinging bar (11), constitute the suspended swinging of reciprocal grate, reciprocal active propulsion unit, the both sides, upper end of the adjustable shelf of suspended swinging (41) are provided with many group horizontal tie-beams of water-cooled adjustable shelf (43), water-cooled adjustable shelf fire grate segment stationary pipes (44), corresponding air compartment position is provided with many group totally-enclosed division boards (47) in the adjustable shelf of suspended swinging (41), soft sealer (48) is provided with totally-enclosed dynamic sealing means (49) with the interior corresponding air compartment position of many group load-bearing stationary furnace framed bents (5), constitute the dynamic seal (packing) structure of isobaric air compartment, the bottom front of the walking beam of suspended swinging (41) is welded with reciprocal promotion horizontal connecting plate (45), active pin shaft (46), the top of the adjustable shelf of suspended swinging (41) the load-bearing water circulation cooling device (50) that is heated, the bottom is provided with rolling location-plate (51), stiffener (52), stressed crossbeam (53), strengthen square tube A (54), connect crossbeam (65), strengthen square tube B (66), large stretch of reciprocating furance row (56) the fillet seam of the active of the front air outlet that water-cooled adjustable shelf fire grate segment stationary pipes (44) front end is provided with adds initiatively reciprocating furance row (57) of four layers of front air outlet, the large stretch of reciprocating furance row (58) of active of rear end is set, the final drive shaft (61) of dragging motor/reduction box (59) drive installation in spring bearing (60), many groups are eccentric drive wheel (62) fixedly, drive and promote connecting rod (63), spacing ring (64) connects active pin shaft (46), back and forth promote horizontal connecting plate (45), the walking beam of suspended swinging (41) is realized the initiatively synchronous reciprocating motion of fire grate segment of reciprocal grate, advances, promote coal fuel roll combustion purpose.Novel large reciprocating grate isobaric air supplying of the present invention is achieved in that required interior variable cross-section air delivery duct (19), the isobaric air compartment (18) of connecting of two load-bearing air delivery ducts (20), biside plate (3) that is passed through biside plate (3) arranged outside with air by air blast of boiler combustion; Connect isobaric air compartment (18) in the biside plate (3), the air register (21) of connection load-bearing air delivery duct (20), biside plate (3) outside, built-in independent air compartment, RANDOM WIND compression testing device (22), converter A (23), YE A (24) and central authorities' collection control are chain, the automated randomized regulation and control of the vertical burning of enforcement boiler; Be provided with air distribution plate (26) in the variable cross-section air delivery duct (19), arrange the wind deflector (25) that is 60-110 degree angle along air supply direction, be provided with intermediate isolating plate (27) in the middle of the variable cross-section air delivery duct (19) of the setting of two symmetries, the side of variable cross-section air delivery duct (19) is provided with grouping uiform section side air-out mouth (28), prismatic side air-out mouth control set for adjusting (29) at random divides into groups, connect YE B (32), air distribution outlet (31) is equipped with in the grouping uiform section side air-out mouth outside, in be provided with air distribution plate (26) and middle partition panel (29) the centre be provided with central dividing plate A (34) and isolate and become four independent pressure balance chambers (30), respectively to both sides, variable cross-section air delivery duct (19) the air-supply static pressure of two symmetries is regulated, the side of variable cross-section air delivery duct (19) is provided with the prismatic side air-out mouth of grouping (28) and connects isobaric air compartment (18), isobaric air compartment (18) bottom is provided with the ash exhauster (37) that has sealing function, the laterally middle intermediate isolating plate (39) that is provided with in the isobaric air compartment of sealing device (33), be provided with 2-30 in the isobaric air compartment and have the independent air compartment (38) of voltage regulation function voluntarily, 2-30 isobaric air compartment is wind pressure detection device (35) at random laterally, beam wind is pressed converter B (36) and prismatic side air-out mouth control set for adjusting (29) at random that divides into groups, it is chain with central collection control to connect YE (32), realize the laterally chain control of burning air-supply, realize the horizontal regulation and control and central authorities' collection control of each sectional combustion air compartment.
Claims (8)
1. novel large reciprocating grate isobaric air supplying and suspension active propelling unit, be at reciprocating-grate boiler large-scale or the large development, implement new isobaric air supplying and suspension active propelling unit, the combustion conditions condition that is different from the isobaric air supplying of chain grate boiler, in addition technological innovation is changed, and on reciprocating-grate boiler, adopt many groups independently, dynamic suspension swing type structure, be arranged at fixedly in the middle of the spandrel girder, reciprocal running orbit and spacing accurate, it is characterized in that: the front end of large reciprocating grate, the top of fire grate segment is provided with layering coal bunker (1), the lower end of large reciprocating grate is provided with scraper-type ash discharging gear (4), for the reciprocal grate coal supply and connect front panel (2), biside plate (3), biside plate (3) top is welded with suspended axle device (10), connect suspended swinging bar (11), the interior connection organized load-bearing stationary furnace framed bents (5) more, biside plate (3) is gone up and is connected many group connection crossbeams (6), stressed load-bearing rolling stopping means (7), load-bearing limited roller (8), side sealing block (9) is equipped with in inboard, biside plate upper end, connect load-bearing stationary furnace framed bent (5) in the biside plate (3), the tops that many group load-bearing stationary furnace framed bents (5) the are set load-bearing water circulation cooling device (12) that is heated, the both sides, upper end are provided with many group horizontal tie-beams of water-cooled (13) and connect biside plate (2), water bar stationary pipes (14), the fillet seam is set adds fixedly reciprocating furance row (15) of four layers of front air outlet, the sheet of the front air outlet that front end is provided with is reciprocating furance row (16) fixedly, the large stretch of fixedly reciprocating furance row (17) in the rear end that is provided with, connect isobaric air compartment (18) in the biside plate (3), variable cross-section air delivery duct (19), biside plate (3) outside connects load-bearing air delivery duct (20), the air register of built-in independent air compartment (21), RANDOM WIND compression testing device (22), converter A (23), YE A (24), connect central authorities' collection control, implement the vertically automated randomized regulation and control of burning of boiler, be provided with air distribution plate (26) in the variable cross-section air delivery duct (19), arrange the wind deflector (25) that is 60-110 degree angle along air supply direction, be provided with intermediate isolating plate (27) in the middle of the variable cross-section air delivery duct (19) of the setting of two symmetries, the side of variable cross-section air delivery duct (19) is provided with grouping uiform section side air-out mouth (28), prismatic side air-out mouth control set for adjusting (29) at random divides into groups, connect YE B (32) the grouping uiform section side air-out mouth outside air distribution outlet (31) is housed, in be provided with air distribution plate (26) and middle partition panel (29) the centre be provided with central dividing plate A (34) and isolate and become four independent pressure balance chambers (30), to both sides, variable cross-section air delivery duct (19) the air-supply static balance of two symmetries is regulated, the side of variable cross-section air delivery duct (19) is provided with the prismatic side air-out mouth of grouping (28) and connects isobaric air compartment (18), isobaric air compartment (18) bottom is provided with the ash exhauster (37) that has sealing function, sealing device (33), the laterally middle intermediate isolating plate (39) that is provided with in the isobaric air compartment, be provided with 2-30 in the isobaric air compartment and have the independent air compartment (38) of voltage regulation function voluntarily, 2-30 isobaric air compartment is wind pressure detection device (35) at random laterally, beam wind is pressed converter B (36) and prismatic side air-out mouth control set for adjusting (29) at random that divides into groups, connect YE (32) and realize the laterally chain control of burning air-supply, reach the lateral center collection control of sectional combustion air compartment, the afterbody air compartment is provided with the air distribution device (40) of balanced ventilation, the inboard that many group load-bearing stationary furnace framed bents (5) are set is provided with suspended swinging adjustable shelf (41), the weight bearing area that is heated of the walking beam of suspended swinging (41) adopts water circulation cooling, the walking beam of suspended swinging (41) is gone up the longeron both sides and is provided with symmetrical, corresponding top is welded with suspended axle device (42), with the upper end of many groups load-bearing stationary furnace framed bent (5) many group load-bearing fixed mount suspended axle devices (55) are set, connect suspended swinging bar (11), constitute the suspended swinging of reciprocal grate, reciprocal active propulsion unit, the both sides, upper end of the adjustable shelf of suspended swinging (41) are provided with many group horizontal tie-beams of water-cooled adjustable shelf (43), water-cooled adjustable shelf fire grate segment stationary pipes (44), corresponding air compartment position is provided with many group totally-enclosed division boards (47) in the adjustable shelf of suspended swinging (41), soft sealer (48) is provided with totally-enclosed dynamic sealing means (49) with the interior corresponding air compartment position of many group load-bearing stationary furnace framed bents (5), constitute the dynamic seal (packing) structure of isobaric air compartment, the bottom front of the walking beam of suspended swinging (41) is welded with reciprocal promotion horizontal connecting plate (45), active pin shaft (46), the top of the adjustable shelf of suspended swinging (41) the load-bearing water circulation cooling device (50) that is heated, the bottom is provided with rolling location-plate (51), stiffener (52), stressed crossbeam (53), strengthen square tube A (54), connect crossbeam (65), strengthen square tube B (66), large stretch of reciprocating furance row (56) the fillet seam of the active of the front air outlet that water-cooled adjustable shelf fire grate segment stationary pipes (44) front end is provided with adds initiatively reciprocating furance row (57) of four layers of front air outlet, the large stretch of reciprocating furance row (58) of active of rear end is set, dragging motor, reduction box (59), the final drive shaft (61) of drive installation in spring bearing (60), many groups are eccentric drive wheel (62) fixedly, drive and promote connecting rod (63), spacing ring (64) connects active pin shaft (46), back and forth promote horizontal connecting plate (45), the walking beam of suspended swinging (41) is realized the initiatively synchronous reciprocating motion of fire grate segment of reciprocal grate, advances, promote coal fuel roll combustion purpose.
2. it is characterized in that according to claim 1 is described: arrange the wind deflector (25) that is 60-110 degree angle along air supply direction, arrange increasing gradually along air supply direction, with air distribution plate joint portion wind distributing hole is arranged, its shape can be circle, rectangle, distortion rectangle, its quantity at least one, can arrange in a variety of forms.
3. it is characterized in that according to claim 1 is described: the air distribution plate (26) in variable cross-section air delivery duct (19), leave the pressure balance space with the upper and lower side of variable cross-section air delivery duct (19), its shape can be circle, bar shaped, rectangle, distortion rectangle.
4. it is characterized in that according to claim 1 is described: the centre that be provided with intermediate isolating plate (39) in the two symmetrically arranged variable cross-section air delivery ducts (19), is provided with air distribution plate (26) and middle partition panel is provided with central dividing plate A (34) and isolates and become four independent pressure balance chambers (30), to variable cross-section air delivery duct (19) air-supply, the pressure balance of both sides, two symmetries, it is peripheral whole sealing status setting with two symmetrically arranged variable cross-section air delivery ducts (19) that intermediate isolating plate (39), centre are provided with central dividing plate A (34).
5. it is characterized in that according to claim 1 is described: the connection surface configuration of suspended axle device (42), suspended axle device (10), connection suspended swinging bar (11) can be cylindrical, spherical, and dihedral connects.
6. it is characterized in that according to claim 1 is described: the side of variable cross-section air delivery duct (19) is provided with the prismatic side air-out mouth of grouping (28) and connects isobaric air compartment (18), the divide into groups variation of opening size of prismatic side air-out mouth (28) is a randomly regulating, and its opening shape is that the equidistant porous of level is arranged for the prismatic circle of grouping, rectangle, distortion rectangle.
7. it is characterized in that according to claim 1 is described: isobaric air compartment (18) laterally is provided with the central dividing plate of sealing fully along fire grate, isobaric air compartment is divided into two fully independently air compartments, 2-30 in the isobaric air compartment has voluntarily the independent air compartment (38) of voltage regulation function and can constitute along the horizontal relatively independent little air compartment of fire grate, by 2-30 isobaric air compartment laterally at random wind pressure detection device (35), beam wind pressure transmitter B (36) and the prismatic side air-out mouth of grouping at random control set for adjusting (29), is connected YE (32) and realizes laterally burning the chain control of blowing.
8. it is characterized in that according to claim 1 is described: be installed in the final drive shaft (61) in the spring bearing (60), many groups fixedly eccentric drive wheel (62), drive and promote connecting rod (63), spacing ring (64) connection active pin shaft (46), back and forth promote horizontal connecting plate (45), can be external, also can be built in reciprocal grate inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100171305A CN101603692A (en) | 2009-07-16 | 2009-07-16 | Novel large reciprocating grate isobaric air supplying and suspension active propelling unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100171305A CN101603692A (en) | 2009-07-16 | 2009-07-16 | Novel large reciprocating grate isobaric air supplying and suspension active propelling unit |
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| CN101603692A true CN101603692A (en) | 2009-12-16 |
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|---|---|---|---|
| CNA2009100171305A Pending CN101603692A (en) | 2009-07-16 | 2009-07-16 | Novel large reciprocating grate isobaric air supplying and suspension active propelling unit |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718437A (en) * | 2010-01-12 | 2010-06-02 | 天津宝成机械集团有限公司 | Two-way sectional-regulation air supply fire grate with |
| CN102261741A (en) * | 2011-08-03 | 2011-11-30 | 无锡锡能锅炉有限公司 | Organic heat carrier boiler with modular structure |
| CN102506436A (en) * | 2011-09-28 | 2012-06-20 | 哈尔滨工业大学 | Multi-frame reciprocating grate |
| CN102635868A (en) * | 2012-05-11 | 2012-08-15 | 上海新业锅炉高科技有限公司 | Combined reciprocating transmission mechanism |
| CN102661611A (en) * | 2012-04-14 | 2012-09-12 | 大连惠英机械有限公司 | Novel wind chamber enabling wind to enter in a tapered way |
| CN103742923A (en) * | 2014-01-15 | 2014-04-23 | 重庆科技学院 | Clockwise and anticlockwise push comprehensive guide rail device for grates |
| CN106123022A (en) * | 2016-08-23 | 2016-11-16 | 大连旺佳新能源科技开发有限公司 | Semi-coke is boiler dedicated |
| CN106705080A (en) * | 2016-12-30 | 2017-05-24 | 安徽海螺川崎工程有限公司 | Grate driving structure and grate driving control step |
| CN111023559A (en) * | 2019-11-06 | 2020-04-17 | 西安天外天锅炉有限公司 | Upper-hanging lower-supporting type combustible material sectional combustion furnace |
| CN112716258A (en) * | 2020-12-24 | 2021-04-30 | 深圳技术大学 | Cooking robot with built-in steam frying shovel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718437A (en) * | 2010-01-12 | 2010-06-02 | 天津宝成机械集团有限公司 | Two-way sectional-regulation air supply fire grate with |
| CN102261741B (en) * | 2011-08-03 | 2013-04-03 | 无锡锡能锅炉有限公司 | Organic heat carrier boiler with modular structure |
| CN102261741A (en) * | 2011-08-03 | 2011-11-30 | 无锡锡能锅炉有限公司 | Organic heat carrier boiler with modular structure |
| CN102506436A (en) * | 2011-09-28 | 2012-06-20 | 哈尔滨工业大学 | Multi-frame reciprocating grate |
| CN102661611B (en) * | 2012-04-14 | 2015-07-22 | 大连惠英机械有限公司 | Novel wind chamber enabling wind to enter in a tapered way |
| CN102661611A (en) * | 2012-04-14 | 2012-09-12 | 大连惠英机械有限公司 | Novel wind chamber enabling wind to enter in a tapered way |
| CN102635868B (en) * | 2012-05-11 | 2014-04-09 | 上海新业锅炉高科技有限公司 | Combined reciprocating transmission mechanism |
| CN102635868A (en) * | 2012-05-11 | 2012-08-15 | 上海新业锅炉高科技有限公司 | Combined reciprocating transmission mechanism |
| CN103742923A (en) * | 2014-01-15 | 2014-04-23 | 重庆科技学院 | Clockwise and anticlockwise push comprehensive guide rail device for grates |
| CN103742923B (en) * | 2014-01-15 | 2016-08-17 | 重庆科技学院 | Along the comprehensive track-type facilities of backstepping fire grate |
| CN106123022A (en) * | 2016-08-23 | 2016-11-16 | 大连旺佳新能源科技开发有限公司 | Semi-coke is boiler dedicated |
| CN106705080A (en) * | 2016-12-30 | 2017-05-24 | 安徽海螺川崎工程有限公司 | Grate driving structure and grate driving control step |
| CN106705080B (en) * | 2016-12-30 | 2019-04-19 | 安徽海螺川崎工程有限公司 | Fire grate driving structure and fire grate drive control method |
| CN111023559A (en) * | 2019-11-06 | 2020-04-17 | 西安天外天锅炉有限公司 | Upper-hanging lower-supporting type combustible material sectional combustion furnace |
| CN111023559B (en) * | 2019-11-06 | 2021-10-08 | 西安天外天锅炉有限公司 | Upper-hanging lower-supporting type combustible material sectional combustion furnace |
| CN112716258A (en) * | 2020-12-24 | 2021-04-30 | 深圳技术大学 | Cooking robot with built-in steam frying shovel |
| CN112716258B (en) * | 2020-12-24 | 2022-03-01 | 深圳技术大学 | Cooking robot with built-in steam frying shovel |
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Open date: 20091216 |