CN101929681A - Two-stage grate system - Google Patents
Two-stage grate system Download PDFInfo
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- CN101929681A CN101929681A CN201010268380.9A CN201010268380A CN101929681A CN 101929681 A CN101929681 A CN 101929681A CN 201010268380 A CN201010268380 A CN 201010268380A CN 101929681 A CN101929681 A CN 101929681A
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Abstract
一种两段式炉排系统，炉排由高到低分为两段，上面的一段为顺推段，下面的一段为逆推段，所述顺推段上的炉排片头部均朝向炉排低点方向，逆推段上的炉排片头部均朝向炉排高点方向。同一段炉排的活动横梁配备有左、右并排设置的拉杆，该左、右拉杆由托辊装置支承，所述左、右拉杆与活动横梁连接成拉杆架，拉杆架的端部与驱动机构连接。本发明采用上面段顺推、下面段逆推的两段式结构，两段具有独立的驱动机构，便于各段控制料层停留时间，以实现整个垃圾料层的移动工艺控制，不断的搅动、混合，提高垃圾与空气的混合、扰动，辅助干燥、燃烧，保障垃圾运送的可靠性和焚烧工艺效果。并且备品、备件规格少，易损件互换性好，炉排系统的制造、维护成本低。
A two-stage fire grate system, the fire grate is divided into two sections from high to low, the upper section is a forward push section, and the lower section is a reverse push section, and the heads of the grate pieces on the forward push section are all facing the furnace In the direction of the low point of the grate, the heads of the grate pieces on the reverse push section are all facing the direction of the high point of the grate. The movable crossbeam of the same section of fire grate is equipped with left and right pull rods arranged side by side. The left and right pull rods are supported by roller devices. The left and right pull rods are connected with the movable crossbeam to form a pull rod frame. connect. The present invention adopts a two-stage structure in which the upper section pushes forward and the lower section pushes backwards. The two sections have independent driving mechanisms, which is convenient for each section to control the residence time of the material layer, so as to realize the moving process control of the entire garbage material layer, continuous stirring, Mixing, improving the mixing and disturbance of garbage and air, assisting drying and burning, ensuring the reliability of garbage transportation and the effect of incineration process. In addition, there are fewer spare parts and spare parts, good interchangeability of wearing parts, and low manufacturing and maintenance costs of the grate system.
Description
Technical field
The invention belongs to the solid waste incineration processing technology field, relate in particular to the two-section grate system of urban domestic garbage incinerator.
Background technology
The essential elements of solid waste incineration stove is the incineration furnace grate system.The incineration furnace grate system is responsible for that rubbish transports in the stove, carrying etc., improves rubbish and Air mixing, disturbance simultaneously, the raising efficiency of combustion.
Existing polytype now incinerator heat-extraction system comes out, especially reciprocating machine formula incinerator heat-extraction system, it is that fixed grate plate and moving grate plate alternately overlap regularly and form the incineration firing supporter, the moving grate plate is done back and forth and is seesawed, simultaneously in conjunction with the inclination installation form of grate surface, thereby cause that the rubbish bed of material is to forward and backward, upper and lower random stirring, mixing.According to the relative motion form of the rubbish bed of material and moving grate plate, fire grate can be divided into two kinds of forwards formula and inclination inverse-push.The direction of motion of its portable plate of forwards formula fire grate is consistent with the direction that rubbish advances in stove, and the portable plate of inverse-push fire grate, and the descending direction of its direction of motion and rubbish is opposite.
Existing reciprocating fire grate respectively has himself advantage, but shows following problem and shortage in the practical application of China:
1, fire grate system all adopts forwards formula fire grate, and for guaranteeing the time of staying of rubbish in stove, fire grate length is longer usually, and fire grate is designed to the segmentation staged, and speed is also controlled slowlyer.Higher when the rubbish bed of material, and adjacent fire grate drop is when low, and operating rubbish almost is in relative static conditions, can not stir mutually preferably, mix, so the rubbish bed of material can not fully burn, efficiency of combustion is low, is difficult to reach the hot burn decrement rate index of lime-ash; Fire grate level inclination less (near level), the incinerator height is relatively low.
2, fire grate system all adopts the inverse-push fire grate, and fire grate is 26 ° approximately at the stove leaning angle.Because inclination angle and backstepping effect, bottom rubbish is up, and upper strata rubbish is descending, constantly overturns and stirs, and fully contacts with air, and comparatively ideal burning condition is arranged, and can realize that rubbish burns completely, and hot burn decrement rate is better.In addition, because reverse promotion can the corresponding time of staying of prolongation rubbish in stove, therefore under the identical situation of disposal ability, grate area can be less than the forwards fire grate usually.
3, adopt above-mentioned two kinds of fire grate ways of propelling separately, rubbish stirs, upset is still abundant inadequately, particularly moves on the same inclined-plane of height fall not having, and the rubbish impact force is little, extruding, stirs insufficiently, and incineration firing is not thorough yet.
When 4, existing fire grate moves, all form neat plane and promote rubbish, make the rubbish of horizontal direction do being synchronized with the movement of longitudinal direction with the head of single fire grate.Fire grate segment only stirs and the rubbish that loosens at longitudinal direction, and is not obvious to the rubbish bed of material influence of horizontal direction, to the stirring and the loose DeGrain of the whole rubbish bed of material.Therefore, the whole rubbish bed of material that can not overturn fully, stirs and loosen has prolonged drying time, has influenced efficiency of combustion.
5, since Chinese rubbish to have a calorific value low, characteristics such as moisture height are stabilized in 850 ° more than the C for guaranteeing the incinerator outlet temperature, need be on fire grate the enough modified rubbish of rules.And existing fire grate segment head or do not have boss, the boss height is lower, cause fire grate head whole height lower, the lengthwise movement of fire grate like this, can only stir, break up near the rubbish of bottom or bottom, and upper strata rubbish can not mix with rubbish on every side, keeps whole slip state, also can prolong drying time, influence efficiency of combustion.
6,, easily clump together, form piece when causing drying garbage and burning owing to Chinese house refuse water content height, complicated component.Therefore also require the rubbish that fire grate segment can the group of being slit into, the rubbish diplomatic corps in enough fully contacts with wind energy, drying is abundant, completing combustion, to guarantee hot burn decrement rate.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of rubbish that can make to stir, overturn fully, and two-section grate system completely burns.
Technical scheme of the present invention is as follows: a kind of two-section grate system, be installed in the draw-in groove that fixed cross beam on the side bar passes same row's fixed grate film afterbody, form the fixed grate plate, be installed in the draw-in groove that moved cross beam on the pull bar passes same row's movable furnace grate plate afterbody, form the moving grate plate, described moving grate plate and fixed grate plate forward lap, and accumulate fire grate alternately, head at described fire grate segment all offers the wind hole one time, its key is: described fire grate is divided into two sections from high to low, top one section is the forwards section, following one section is the backstepping section, fire grate segment head on the described forwards section is all towards fire grate low spot direction, and the fire grate segment head on the backstepping section is all towards the high point of fire grate direction; The moved cross beam of described same section fire grate is equipped with the left and right pull bar that is arranged side by side, this left and right pull bar is supported by support roller device, described left and right pull bar and moved cross beam connect into pulling-rod frame, and the end of pulling-rod frame and front arm driving mechanism or side driving mechanism for rocker arm or preceding straight driving mechanism are connected.
The drying that the present invention experiences on fire grate in conjunction with rubbish, burn and burn three phases, design and form one by dryer section fire grate, burning and burning segment fire grate and be listed as independently two-section grate, two sections have independent driving mechanisms, be convenient to each section control bed of material time of staying, to realize the moving process control of the whole rubbish bed of material, constantly stir, mix, improve rubbish and Air mixing, disturbance, drying aid, burning ensure reliability and burning process effect that rubbish transports.Transport the difference of rubbish ability according to fire grate system in the incinerator, single-row, two (two) row, three row, four row can be set ... fire grate system, the two-section grate system of formation seriation.Wherein, be " low order " fire grate system of the small incinerator of its installation supporting single-row or two (two) row for " satellite " city of small city or big city periphery; For big and medium-sized cities, be supporting three row of the large-scale incinerator of its installation, four row ... " high-order " fire grate system.
For the dryer section fire grate, transport abundant mixing, the stirring of rubbish effect and rubbish in order to guarantee fire grate, prevent drying garbage and bad, the conglomeration of when burning fire grate transport result, caking etc., the whole forwards formula that adopts, the fire grate segment head is towards the low side of whole fire grate; For burning and the whole backstepping form that adopts of burning segment fire grate, the fire grate segment head is high-end towards whole fire grate, help increasing rubbish like this and fully mix, stir, ensure reliability and burning process effect that burning and burning segment transport rubbish at the control effect and the assurance rubbish of residing time in furnace.The left and right pull bar and the moved cross beam of forwards section and backstepping section connect into framework, and structural strength is good, can guarantee the synchronism of each moving grate plate motion of same section fire grate; Pull bar is supported by the support roller device carrying, can reduce the resistance of motion of pull bar, strengthens fire grate system reliability of operation and stability, improves service life.
The angle of formed inclined plane of fire grate segment head line, described forwards section and horizontal plane is 0-18 °, and the angle of forwards section movable furnace grate plate moving surface and horizontal plane is 0-60 °, and the stroke of forwards section movable furnace grate plate is 200-400mm.Perhaps, the angle of formed inclined plane of fire grate segment head line, described forwards section and horizontal plane is 18-30 °, and the angle of forwards section movable furnace grate plate moving surface and horizontal plane is 0-60 °, and the stroke of forwards section movable furnace grate plate is 400-500mm.
The angle of formed inclined plane of fire grate segment head line, forwards section and horizontal plane is the overall inclination angle of forwards
,, can select small inclination or high inclination-angle forwards form according to the difference of different cities zone rubbish characteristic.
Adopt 0-18 ° small inclination mode to install, be applicable to the area that the rubbish water content is lower, and adopt no head version to be staggeredly arranged, wherein
The time, inclination angle, fire grate segment back also becomes with horizontal plane
, be called " to degree " forwards fire grate.
Adopt 18-30 ° high inclination-angle mode to install, be applicable to the area that the rubbish water content is higher, adopting has head and no head version to be staggeredly arranged.Wherein the inclination angle is
The time, inclination angle, fire grate segment back becomes with horizontal plane
, be called " zero degree " forwards fire grate.Dryer section forwards fire grate stroke adopts big stroke, and stroke range is 400-500mm; Adopt little stroke, stroke range is 200-400, and big stroke adopts different control rates, control algolithm respectively with little stroke, realizes mixing, the stirring of rubbish in dryer section.By the integrated combination that the overall inclination angle of dryer section fire grate, head construction form, fire grate segment are staggeredly arranged, and realize the operational characteristic process of whole dryer section ensureing reliability and burning process effect that dryer section is transported rubbish in conjunction with stroke and control mode.
In order further to strengthen the stirring effect to rubbish, the head of the every fire grate segment in described forwards section is provided with fin, and the fin of all fire grate segment heads of forwards section forms transversely arranged dentation matrix structure.
The angle of formed inclined plane of fire grate segment head line, described backstepping section and horizontal plane is 20-35 °, and the angle of backstepping section movable furnace grate plate moving surface and horizontal plane is 25-60 °, and the stroke of backstepping section movable furnace grate plate is 350-500mm.For burning and the whole backstepping form that adopts of burning segment fire grate, the fire grate segment head is high-end towards whole fire grate, the angle of formed inclined plane of fire grate segment head line, backstepping section and horizontal plane, the i.e. overall inclination angle of backstepping
Be 20-35 °, the fire grate stroke adopts big stroke, stroke range is 350-500mm, helps increasing rubbish and fully mixes, stirs at the control effect and the assurance rubbish of residing time in furnace, ensures reliability and burning process effect that burning and burning segment transport rubbish.
The head boss of two adjacent fire grate segments all has dislocation in horizontal, front and back on the same grate furnace row plate of described backstepping section, and every grate furnace screening front end is concordant, and the wind hole that two adjacent fire grate segment heads are offered along its width also all has dislocation in horizontal, front and back.So obvious disturbance, cutting, immixture can be arranged to the rubbish of vertical and horizontal, increase the unstability of rubbish on fire grate; Also help simultaneously fixedly connected with between the grate furnace screening, the fire grate front end is concordant, every stressed evenly, every row's moving grate plate operates steadily.
For simplified structure, the convenient installation and layout, further improve reciprocating stability of pull bar and reliability, described support roller device is made of roller carrier shaft and roller carrier shaft bearing, the two ends of roller carrier shaft are by the Idler bearing seat supports, and the corresponding pull bar of roller carrier shaft supporting is provided with directive wheel in the both sides of pull bar.
Above-mentioned forwards section and backstepping section fire grate be drive respectively, and setting mainly contains the driving of side rocking arm, front arm driving, preceding straight driving three classes to driving mechanism in the present invention, can carry out any permutation and combination and be used.Described front arm driving mechanism constitutes by driving oil cylinder, driving oil cylinder seat, driving shaft, driving shaft bearing, pull bar rocking arm, connecting rod and tie rod arm, it is hinged with the driving oil cylinder seat wherein to drive cylinder block, the piston rod that drives oil cylinder is connected with the oil cylinder rocking arm of driving shaft, the end at these driving shaft two ends is by the driving bearing seat supports, position at the driving shaft two ends near the end is provided with the pull bar rocking arm, each pull bar rocking arm is hinged by connecting rod and tie rod arm, described tie rod arm and corresponding pulling-rod frame connection.When the piston rod that drives oil cylinder was flexible, the piston rod that drives oil cylinder drove the positive and negative rotation certain angle of driving shaft, in the time of drive shaft turns, drove tie rod arm by the connecting rod that is connected with the pull bar rocking arm, made pulling-rod frame drive the moving grate plate and moved back and forth.
Described side driving mechanism for rocker arm constitutes by driving oil cylinder, driving oil cylinder seat, swing arm, driving shaft, driving shaft bearing, pull bar rocking arm and connecting rod, it is hinged with the driving oil cylinder seat wherein to drive cylinder block, the piston rod of driving oil cylinder and an end of swing arm are hinged, the other end of swing arm is connected with the end of driving shaft, the two ends of this driving shaft are by the driving bearing seat supports, be arranged side by side two pull bar rocking arms on driving shaft, each pull bar rocking arm is by connecting rod and corresponding pulling-rod frame connection.When the piston rod that drives oil cylinder is flexible, the piston rod that drives oil cylinder drives the positive and negative rotation certain angle of driving shaft by swing arm, in the time of drive shaft turns, drive pulling-rod frame, make pulling-rod frame drive the moving grate plate and move back and forth by the connecting rod that is connected with the pull bar rocking arm.
Straight driving mechanism constitutes by driving oil cylinder, driving oil cylinder seat and directly driving connecting rod before described, it is hinged with the driving oil cylinder seat wherein to drive cylinder block, it is hinged with an end that directly drives connecting rod to drive the piston rod of oil cylinder, and this directly drives the other end of connecting rod and corresponding pulling-rod frame connection.When the piston rod that drives oil cylinder is flexible, directly drive pulling-rod frame by directly driving connecting rod, make pulling-rod frame drive the moving grate plate and move back and forth.
The driving mechanism of forwards section is in foremost, promptly in incinerator material-pulling device bottom, erection unit seldom, higher for the rubbish water content, percolate is just many, easy etching apparatus parts, and available front arm drives or preceding straight driving, so that can better handle the percolate problem, reduce the etching apparatus parts; Lower for the rubbish water content, percolate is just few, and is less to the part of appliance corrosion, and for strengthening facility compact, available side rocking arm drives.And the backstepping section fire grate is burning zone, burning segment, is in the high-temperature region, and temperature is higher, is in the fire grate postmedian, and installing space also is subjected to certain limitation, and for strengthening facility compact, available side rocking arm drives, front arm drives simultaneously.
In sum, three class driving mechanisms are made up setting, preferred three kinds of set-up modes: one of set-up mode, forwards drive and are in foremost, adopt the front arm drive form; Backstepping drives and is in backstepping fire grate side, adopts side rocking arm drive form; Two of set-up mode, forwards drive and are in foremost, straight drive form before adopting, and backstepping drives and is in the backstepping fire grate foremost, adopts the front arm drive form; Three of set-up mode, forwards drives and side rocking arm drive form is all adopted in the backstepping driving, particularly in inverse-push burning zone, the burning segment fire grate drive mechanism side rocking arm drive form, also can drive at two groups of side rocking arms of backstepping fire grate side arrangement, perhaps front arm drives the driving of plus side rocking arm, to strengthen the operability to the fire grate technological parameter.Above arrangement form makes fire grate system have independent driving mechanisms, be convenient to each section control bed of material time of staying, to realize the moving process control of the whole rubbish bed of material, constantly stir, mix, improve rubbish and Air mixing, disturbance, drying aid, burning ensure reliability and burning process effect that rubbish transports.As the two-section grate system of seriation, above-mentioned single-row and two (two) row are applicable to " low order " fire grate system of small incinerator, and forwards fire grate, backstepping fire grate drive form all can adopt the driving of side rocking arm, front arm driving, preceding straight driving.Three row, four row ... be applicable to " high-order " fire grate system of large-scale incinerator, forwards fire grate drive form adopts the driving of side rocking arm, front arm driving, preceding straight driving; Backstepping fire grate drive form all can adopt front arm driving, preceding straight driving, but side rocking arm drive form can only be used for two row fire grates of ragged edge.
Adopt no drop to be connected between described forwards section and the backstepping section, the fixed grate plate of forwards section tail end directly snaps into the head of backstepping section front end fixed grate plate.Do not have the type of attachment that highly falls and can keep the continuity of rubbish on whole grate surface, be suitable for the low and less rubbish of rubbish property difference of moisture, promptly calorific value is higher, the rubbish characteristic not high to the fire grate process requirements.
Have height fall between described forwards section and the backstepping section, the tail end of forwards section is connected with the backstepping section by fire-resistant transition platform or middle fire grate.After transporting end by the forwards dryer section, drop falls further the rubbish bed of material of breaing up, mix, roll, and cuts off the continuity of waste layer on whole grate surface, helps fully dry, improve combustion efficiency, be suitable for the higher and bigger rubbish of rubbish property difference of water content.
For simplified structure, convenient processing and installation, described pull bar is linear pattern or " Z " shape; Described fixed cross beam is " M " shape or " returning " shape.
Beneficial effect: the two-part structure of section forwards, following section backstepping above the present invention adopts, two sections have independent driving mechanisms, be convenient to each section control bed of material time of staying, to realize the moving process control of the whole rubbish bed of material, constantly stir, mix, improve rubbish and Air mixing, disturbance, drying aid, burning ensure reliability and burning process effect that rubbish transports.And spare unit, spare part specification are few, and consumable accessory interchangeability is good, and manufacturing, the maintenance cost of fire grate system are low.
Description of drawings
Fig. 1 is the structural representation of embodiment 1.
First kind of structural representation that Fig. 2 analyses and observe for Fig. 1 B-B.
Second kind of structural representation that Fig. 3 analyses and observe for Fig. 1 B-B.
The third structural representation that Fig. 4 analyses and observe for Fig. 1 B-B.
Fig. 5 is the C-C cutaway view of Fig. 1.
Fig. 6 is the D-D cutaway view of Fig. 1.
Fig. 7 is the E-E cutaway view of Fig. 1.
Fig. 8 is the schematic diagram that adopts fire-resistant transition platform to be connected between suitable among the embodiment 1, the backstepping section fire grate.
Fig. 9 adopts the directly schematic diagram of overlap joint between suitable among the embodiment 1, the backstepping section fire grate.
Figure 10 is the structural representation of embodiment 2.
Figure 11 is the structural representation of embodiment 3.
The schematic diagram that Figure 12 is arranged to two row fire grates for the present invention and adopts the side rocking arm to drive.
The schematic diagram that Figure 13 is arranged to two row fire grates for the present invention and adopts front arm to drive.
Figure 14 is arranged to the schematic diagram of four row fire grates for the present invention.
Figure 15 is the structural representation of embodiment 4.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples:
Embodiment 1
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, the fire grate in incinerator is divided into two sections from high to low, and top one section is forwards section 6, and following one section is backstepping section 7.Described forwards section fire grate is made of side bar 1, fixed cross beam 2, fixed grate film 3, moved cross beam 4, movable furnace grate plate 5, forwards pull bar 24, support roller device and front arm driving mechanism.Fixed cross beam 2 and moved cross beam 4 are set between the side bar 1 on left and right both sides, fixed cross beam 2 is " M " shape or " returning " shape, this fixed cross beam 2 passes the draw-in groove of same row's fixed grate film 3 afterbodys, forms the fixed grate plate, and the end of fixed cross beam 2 fixes with corresponding side bar 1.Described moved cross beam 4 passes the draw-in groove of same row's movable furnace grate plate 5 afterbodys, forms the moving grate plate.Described moving grate plate and fixed grate plate forward lap, and accumulate the forwards section fire grate alternately.Head at described fixed grate film 3 and movable furnace grate plate 5 all offers the wind hole one time.
As can be known from Fig. 1, all towards fire grate low spot direction, the head of 6 every fire grate segments is provided with fin 20 to the fire grate segment head on the forwards section 6 in the forwards section, and the fin 20 of forwards section 6 all fire grate segment heads forms transversely arranged dentation matrix structure.The angle of 6 formed inclined planes of fire grate segment head line, described forwards section and horizontal plane is the overall inclination angle of forwards
, should
Can adopt the small inclination mode to install, be 0-18 °, the angle of forwards section 6 movable furnace grate plate moving surfaces and horizontal plane is 0-60 °, and the stroke of forwards section 6 movable furnace grate plates is 200-400mm.
Also can adopt the high inclination-angle mode to install, be 18-30 °, correspondingly, the angle of forwards section 6 movable furnace grate plate moving surfaces and horizontal plane is 0-60 °, and the stroke of forwards section 6 movable furnace grate plates is 400-500mm.
From Fig. 1, Fig. 2, Fig. 3, Fig. 4 also as can be known, the moved cross beam 4 of forwards section fire grate is equipped with the left and right forwards pull bar 24 that is arranged side by side, forwards pull bar 24 is linear pattern or " Z " shape, and left and right forwards pull bar 24 passes fixed cross beam 2, by the front arm drive mechanism.Described left and right forwards pull bar 24 connects into pulling-rod frame with moved cross beam 4, and left and right forwards pull bar 24 is supported by at least two support roller devices.This support roller device is made of roller carrier shaft 8 and roller carrier shaft bearing 9, and the two ends of roller carrier shaft 8 are supported by roller carrier shaft bearing 9, and roller carrier shaft bearing 9 can be arranged in air compartment 26, also can be arranged on outside air compartment 26.Position near roller carrier shaft bearing 9 on roller carrier shaft 8 is provided with " V " shape surface of revolution 8a, should support corresponding forwards pull bar 24 by " V " shape surface of revolution 8a; Perhaps, roller carrier shaft 8 directly supports forwards pull bar 24, in the both sides of forwards pull bar 24 directive wheel 10 is set.
From Fig. 1, among Fig. 6 as can be known, the front arm driving mechanism is positioned at the front lower place of forwards section 6, by driving oil cylinder 11, drive oil cylinder seat 12, driving shaft 13, driving shaft bearing 14, pull bar rocking arm 15, connecting rod 16 and tie rod arm 17 constitute, the cylinder body that wherein drives oil cylinder 11 is hinged with driving oil cylinder seat 12, the piston rod that drives oil cylinder 11 is connected with the oil cylinder rocking arm of driving shaft 13 by hinge arrangement, the end at these driving shaft 13 two ends is supported by driving shaft bearing 14, position at driving shaft 13 two ends near the end is provided with pull bar rocking arm 15, each pull bar rocking arm 15 is hinged by connecting rod 16 and tie rod arm 17, and described tie rod arm 17 is connected with the end of forwards pulling-rod frame.
As can be known, the backstepping section fire grate is made of side bar 1, fixed cross beam 2, fixed grate film 3, moved cross beam 4, movable furnace grate plate 5, backstepping pull bar 25, support roller device and side driving mechanism for rocker arm from Fig. 1, Fig. 7.Fixed cross beam 2 passes the draw-in groove of same row's fixed grate film 3 afterbodys, forms the fixed grate plate, and the end of fixed cross beam 2 fixes with corresponding side bar 1; Moved cross beam 4 passes the draw-in groove of same row's movable furnace grate plate 5 afterbodys, forms the moving grate plate.Described moving grate plate and fixed grate plate forward lap, and accumulate the backstepping section fire grate alternately.
As can be known from Fig. 1, the fire grate segment head on the backstepping section 7 is all towards the high point of fire grate direction.The angle of 7 formed inclined planes of fire grate segment head line, described backstepping section and horizontal plane is 20-35 °, and the angle of backstepping section 7 movable furnace grate plate moving surfaces and horizontal plane is 25-60 °, and the stroke of backstepping section 7 movable furnace grate plates is 350-500mm; The head boss of two adjacent fire grate segments all has dislocation in horizontal, front and back on the 7 same grate furnace row plates of described backstepping section, and every grate furnace screening front end is concordant, about the fire grate segment head boss of backstepping section fire grate is formed, be staggered front to back layout, every row's two adjacent fire grate segment heads also all have dislocation in horizontal, front and back along the wind hole 21 that its width is offered.
As can be known, the moved cross beam 4 of backstepping section fire grate is equipped with the left and right backstepping pull bar 25 that is arranged side by side from Fig. 1, Fig. 5, and backstepping pull bar 25 is linear pattern or " Z " shape, and left and right backstepping pull bar 25 passes fixed cross beam 2, is driven by the side driving mechanism for rocker arm.Described left and right backstepping pull bar 25 connects into pulling-rod frame with moved cross beam 4, and left and right backstepping pull bar 25 is supported by a plurality of support roller devices.The structure of support roller device and arrangement form are identical with the forwards section, do not do at this and give unnecessary details.
From Fig. 1, among Fig. 5 also as can be known, the side driving mechanism for rocker arm is positioned at the below of 7 front portions, backstepping section, by driving oil cylinder 11, drive oil cylinder seat 12, swing arm 18, driving shaft 13, driving shaft bearing 14, pull bar rocking arm 15 and connecting rod 16 constitute, the cylinder body that wherein drives oil cylinder 11 is hinged with driving oil cylinder seat 12, the piston rod of driving oil cylinder 11 and an end of swing arm 18 are hinged, the other end of swing arm 18 is connected with the end of driving shaft 13, the two ends of this driving shaft 13 are supported by driving shaft bearing 14, be arranged side by side two pull bar rocking arms 15 on driving shaft 13, each pull bar rocking arm 15 is connected with the end of backstepping pulling-rod frame by connecting rod 16.
From Fig. 1, Fig. 8, Fig. 9 as can be known, the tail end of 6 head end and backstepping section 7 is provided with hold down gag in the forwards section, can adopt no drop to be connected between described forwards section 6 and the backstepping section 7, promptly the fixed grate plate of forwards section 6 tail ends directly snaps into the head (see figure 9) of backstepping section 7 front end fixed grate plates.Also can have height fall between forwards section 6 and the backstepping section 7, the tail end of forwards section 6 is connected (see figure 8) by fire-resistant transition platform 22 with backstepping section 7, and perhaps, the tail end of forwards section 6 is connected (see figure 1) by middle fire grate 23 with backstepping section 7.
Embodiment 2
As shown in figure 10, in the present embodiment, the pulling-rod frame of forwards section 6 is by the front arm drive mechanism, and the pulling-rod frame of backstepping section is by preceding straight drive mechanism.Straight driving mechanism constitutes by driving oil cylinder 11, driving oil cylinder seat 12 and directly driving connecting rod 19 before described, the cylinder body that wherein drives oil cylinder 11 is hinged with driving oil cylinder seat 12, it is hinged with an end that directly drives connecting rod 19 to drive the piston rod of oil cylinder 11, and this directly drives the other end of connecting rod 19 and corresponding pulling-rod frame connection.All the other structures of present embodiment are identical with embodiment 1, do not do at this and give unnecessary details.
As shown in figure 11, in the present embodiment, the front and rear of backstepping section 7 respectively is provided with one group of backstepping pull bar 25, and every group of backstepping pull bar 25 formed pulling-rod frame with corresponding moved cross beam 4, and forward and backward pulling-rod frame respectively is equipped with a side driving mechanism for rocker arm.All the other structures of present embodiment are identical with embodiment 1, do not do at this and give unnecessary details.
Embodiment 4
As shown in figure 15, in the present embodiment, the driving oil cylinder of forwards section 6 and backstepping section 7 all is positioned at the front side of forwards section 6, and all the other structures of present embodiment are identical with embodiment 1, do not do at this and give unnecessary details.
The present invention transports the difference of rubbish ability according to fire grate system in the incinerator, and single-row fire grate system can be set, two (two) row fire grate system, three row, four row ... fire grate system, the two-section grate system of formation seriation.And fire grate system is suitable, the type of drive of backstepping section can freely be selected the front arm driving mechanism as required or side driving mechanism for rocker arm or preceding straight driving mechanism.Two (two) row fire grate systems as shown in figure 12 adopt the side driving mechanism for rocker arm, and two (two) row fire grate systems shown in Figure 13 adopt the front arm driving mechanism, and four row fire grate systems shown in Figure 14 adopt the front arm driving mechanism.
In sum, whole fire grate system is an elementary cell with fire grate segment (fixed and movable two classes), along staggered fixed grate film and the movable furnace grate plate of adding of rubbish direction of advance (vertically), can increase the length of single-row fire grate; In like manner, along corresponding fixed grate film and the movable furnace grate plate of adding of incinerator horizontal direction, can increase the width of single-row fire grate, final formation by forwards dryer section fire grate, backstepping burning burning segment fire grate formed single-row independently two-section grate system.For two (two) row and with upper fire-grating, connect by intermediate beam between the two adjacent column fire grates in same section.Basic data (as: water content, component etc.) according to house refuse changes dryer section fire grate, the length of burning burning segment fire grate and the width of determining single-row fire grate system, determines the columns of fire grate system again according to required total amount of burning away the refuse.Each row adopts independently air compartment in dryer section, the burning after-flame section, and wind-warm syndrome, blast are independently controlled.The driving mechanism of each section of fire grate system is arranged in beyond the air compartment, is in the normal temperature state, can guarantee that seal normally uses, and improves service life, and is lubricated good to ensure the driving mechanism moving component, makes the moving grate plate that is fixed on the pull bar stable.Spare unit, spare part specification are few, and consumable accessory interchangeability is good, and manufacturing, the maintenance cost of fire grate system are low.
Claims (10)
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| CN201010268380.9A CN101929681A (en) | 2010-09-01 | 2010-09-01 | Two-stage grate system |
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| CN201010268380.9A CN101929681A (en) | 2010-09-01 | 2010-09-01 | Two-stage grate system |
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| CN101929681A true CN101929681A (en) | 2010-12-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106678829A (en) * | 2016-12-30 | 2017-05-17 | 安徽海螺川崎工程有限公司 | Incinerator fire grate structure |
| CN109469904A (en) * | 2018-10-19 | 2019-03-15 | 重庆科技学院 | Refuse gasification combustion furnace with telescopic grate structure and gasification combustion treatment process |
| CN117053214A (en) * | 2023-08-16 | 2023-11-14 | 重庆三峰卡万塔环境产业有限公司 | A composite garbage incineration grate with a guide and lift-limiting mechanism |
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| CN201141608Y (en) * | 2007-08-03 | 2008-10-29 | 重庆科技学院 | Reciprocating grate system with lateral movement |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106678829A (en) * | 2016-12-30 | 2017-05-17 | 安徽海螺川崎工程有限公司 | Incinerator fire grate structure |
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Application publication date: 20101229 |