CN200940840Y - Reversely pushing refuse incinerator having material layer height regulated - Google Patents
Reversely pushing refuse incinerator having material layer height regulated Download PDFInfo
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- CN200940840Y CN200940840Y CN 200620106519 CN200620106519U CN200940840Y CN 200940840 Y CN200940840 Y CN 200940840Y CN 200620106519 CN200620106519 CN 200620106519 CN 200620106519 U CN200620106519 U CN 200620106519U CN 200940840 Y CN200940840 Y CN 200940840Y
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- inverse
- fire grate
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- incinerator
- heater
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Abstract
A reverse pushed refuse incinerator is provided which can make regulate the height of refuse layer. More specially, it relates to a domestic refuse incinerator which is used to incinerate such domestic refuse of small or medium scale as with a large fluctuation at physical component or heat value. The utility model comprises a body, a feeder, a reverse pushed grate, an air compartment and an ash compartment all located below the grate, a slag discharge duct and a slag discharge machine. At the utility model, the grate comprises a fixation sheet, connected with the body, and a mobile sheet between two neighboring fixation sheets, connected with a rod of reciprocating motion. The utility model is characterized in that a regulation device of refuse layer height is equipped at the body section wherein the rear of reverse pushed grate is equipped. The regulation device comprises a baffle shaft installed in a bearing pedestal of the body, a baffle, fixed on the baffle shaft and competent to change the height of refuse layer by its rotation, a drive mechanism, installed on the body and competent to drive the baffle shaft for rotation. The utility model can suit a large fluctuation in terms of refuse component or heat value and achieve an expected incineration effect and make same incinerator able to perform against different zone, season and climate condition.
Description
Technical field
The utility model relates to a kind of incinerator, the inverse-push incinerator of the adjustable bed depth of the house refuse that the fluctuation range of especially a kind of physics that is used for burning disposal or calorific value is bigger.
Background technology
Existing domestic waste incineration all is that parameters such as the water content of the rubbish at some composition, a certain scope or calorific value design, so the domestic waste incineration with a kind of type of furnace can only use in the parameter area of its setting, if exceed the scope of its setting, it is undesirable that then every index of its burning will not reach index, the combustion efficiency of setting; Yet the physics of house refuse, moisture content, change at random such as calorific value are big, normally be difficult to consistent with the scope of incinerator setting, for example its physics comprises moisture, paper or wood waste, the residue of vegetables or melon and fruit, the kitchen is surplus, the flowers and plants of fallen leaves and shovel, dirt etc., not only kind is many, but also be difficult to predict this kind, because the physics of these components, water content, calorific value etc., and with season, weather, the difference of region etc. and difference, even on the same day, also have very big discrepancy, therefore house refuse to be burned normally is difficult to meet the scope of application of incinerator, that is to say that existing domestic waste incineration all has a difficult parameters when using to be worse than the problem that it sets effect with the Actual combustion effect that incinerator appears in the setting range that meets incinerator in use.
For the Actual combustion effect that makes incinerator with to set effect approaching, existing domestic waste incineration is to adopt the motion frequency of regulating fire grate segment to change stirring extent and the bed depth of fire grate segment to the rubbish bed of material, but the method for this adjusting is being used for composition, during the bigger rubbish of calorific value fluctuation, find an equalization point with bring between a hot burn decrement rate that is difficult in rubbish and the load thereupon, be difficult to make the both meet the burning index: for example the water content when rubbish is big, when calorific value is low, for guaranteeing need the slow down motion frequency of fire grate of its hot burn decrement rate, in order to avoid the rubbish unburned is fully just released outside the stove by fire grate; But slowing down, stirring and weaken of fire grate motion can make the problem of the load reduction of incinerator, if accelerate the motion of fire grate, hot burn decrement rate exceeded standard.Otherwise, the burning high heating value rubbish the time, as moving and shorten the time of staying of material in stove to accelerate fire grate, then the load of incinerator with too high, the danger that exceeds design load is arranged, and the fire grate speed that slows down can prolong rubbish in stove unnecessary time of staying, influence the treating capacity of rubbish.Therefore, coming the bigger rubbish of fluctuation such as burning disposal composition, calorific value, moisture content with the method for regulating the fire grate segment motion frequency, is the every index that is difficult to satisfy simultaneously incineration treatment of garbage.
" method and apparatus that the multi-driving inverse-push fire grate is burnt away the refuse " that Chinese patent ZL03126962.1 provides, it is that the reciprocating type backstepping fire grate of the inclination that is provided with in the grate-type incinerator is divided into dry section 1 or 2, combustion zone 1 or 2 and burnt zone 1 or 2; The moving grate in each district is respectively by the oil cylinder drive in each district; It changes inverse-push waste incineration fire grate latter end fire grate into independent driving, can be inconsistent with the fire grate action of dryer section, burning zone and the after-flame section three phases of waste incineration, can regulate the speed of the fire grate action of after-flame section separately; But it still has following problem: the inverse-push fire grate of its multistage driving also can only be regulated the bed of material by the operating frequency of regulating latter end inverse-push fire grate actually, and owing to be subjected to the restriction of fire grate layout angle, rubbish will gravitate after being deposited into to a certain degree and fall naturally; So this structure also is difficult to the thickness of the ACTIVE CONTROL rubbish bed of material, thereby can not guarantee that incinerator can be all the time with stable load operation; In addition, the cost of investment of its structure more complicated, equipment is than higher.
In sum, when using domestic waste incineration, when the undulating value of every indexs such as component of refuse, calorific value, moisture content is bigger, can not guarantees the effect and the hot burn decrement rate of waste incineration simultaneously, and can not be used for the garbage disposal of zones of different with a kind of type of furnace.Therefore, for the incinerator that makes the same type of furnace can be widely used in garbage disposal under zones of different, Various Seasonal, the different weather, to adapt to the bigger incineration treatment of garbage of every index fluctuation such as physics, calorific value, moisture content, just must improve existing domestic waste incineration.
Summary of the invention
The utility model is to overcome existing problem in the above-mentioned prior art, provide a kind of and can be adapted to rubbish, the inverse-push incinerator of the bigger adjustable bed depth of the physics of house refuse or calorific value fluctuation particularly, so that it has is easy to adjust, use reliable and stable, as to satisfy incineration treatment of garbage simultaneously every index, and simple and reasonable, characteristics such as cost of investment is low.
The inverse-push incinerator of adjustable bed depth of the present utility model, it contains the body of heater of a band charging conduit, be contained in the batcher in the body of heater, the inverse-push fire grate, be positioned at air compartment and slag releasing channel under the fire grate, slag releasing channel and mucking machine, its fire grate segment contain be connected the stator on the body of heater and be spaced between the two adjacent stators of front and back and with move back and forth the activity template that rod member is connected, it is characterized in that: it is provided with the bed depth adjusting device on the body of heater at inverse-push fire grate tail end place, and this device is included in the damper shaft of installing in the bearing block of the terminal place of inverse-push fire grate body of heater, be fixed on the baffle plate that can change bed depth on the damper shaft by its rotation, that installs on body of heater can drive the driving mechanism that damper shaft is rotated.
Above-mentioned driving mechanism is a hydraulic drive mechanism, the crank that this mechanism includes the hydraulic cylinder that is fixed on the body of heater, is connected with piston in the hydraulic cylinder, and crank connection damper shaft.
Above-mentioned driving mechanism also can be an Electric Drive mechanism, and this mechanism comprises motor, decelerator, and is connected the mechanical transmission mechanism between reducer output shaft and the damper shaft.The spiral gear drive mechanism formed by two helical gears of mechanical transmission mechanism wherein, or the circle of being made up of two conical gears pushes away gear drive, or Worm and worm-wheel gearing, and the axis of two helical gear place axles in the spiral gear drive mechanism respectively with the output shaft and the damper shaft coaxial line of decelerator; The axis of two conical gear place axles in the conical gear drive respectively with the output shaft and the damper shaft coaxial line of decelerator; The output shaft coaxial line of the worm-wheel shaft in the Worm and worm-wheel gearing and damper shaft coaxial line, worm shaft and decelerator.
The inverse-push incinerator of adjustable bed depth of the present utility model, the angle of inclination beta of its inverse-push fire grate and horizontal direction is 20～30 °.
The beneficial effects of the utility model: 1) in existing inverse-push incinerator, be provided with the bed depth adjusting device after, can bed depth be increased or reduction by the Level Change of its baffle plate on the fire grate tail end, thereby the rubbish bed of material in having guaranteed to stir on the fire grate and stir can reach the bed depth that burns best results, and can be not too early or throw off fire grate the day after the fair, also therefore guaranteed the low-heat burn decrement rate of waste incineration and continual and steady treating capacity; 2), can make the inverse-push incinerator of same model can the burning disposal physics, moisture content, rubbish that the calorific value fluctuation is bigger by to the adjustment of bed depth adjusting device; Perhaps the inverse-push incinerator of same model can be widely used in the consumer waste incineration processing of zones of different, Various Seasonal, different weathers; 3) the bed depth adjusting device that is had in the utility model, its simple and reasonable, easy to adjust and reliable operation, and when it is incorporated into existing incinerator, need not change its original incinerator structure and layout, not only economy but also help renovating to existing incinerator, particularly domestic waste incineration.
Description of drawings
Fig. 1 is the main cutaway view of the inverse-push incinerator of the adjustable bed depth of the utility model;
Fig. 2 and Fig. 3 are that the master of the bed depth adjusting device 7 among Fig. 1 looks enlarged drawing; Wherein Fig. 2 is to be the bed depth adjusting device of driving mechanism with the hydraulic cylinder, and Fig. 3 is to be the bed depth adjusting device of driving mechanism with Electric Drive mechanism;
Fig. 4 and Fig. 5 are the A-A cutaway view Amplified images of the bed depth adjusting device among Fig. 1; Wherein Fig. 4 is to be the A-A cutaway view Amplified image of the bed depth adjusting device of driving mechanism with the hydraulic cylinder, and Fig. 5 is to be the A-A cutaway view Amplified image of the bed depth adjusting device of driving mechanism with Electric Drive mechanism.
Label declaration among the figure: 1-body of heater; The 1a-charging conduit; The 2-batcher; 3-inverse-push fire grate; 4-air compartment and slag releasing channel; The 5-mucking machine; The 6-slag releasing channel; 7-bed depth adjusting device; The 7a-baffle plate; The 7b-crank; The 7c-hydraulic cylinder; 7c '-piston; The 7d-damper shaft; The 7e-bearing block; The 7f-mechanical transmission mechanism; The 7g-decelerator; The 7h-motor; 8-moves back and forth rod member; The a-stator; The b-activity template; The H-height fall; The inclination angle of β-fire grate and horizontal direction.
The specific embodiment
The inverse-push incinerator of the adjustable bed depth of present embodiment, its structure can be seen from Fig. 1, it contain a band charging conduit 1a body of heater 1, be contained in batcher 2, inverse-push fire grate 3 in the body of heater, be positioned at air compartment under the fire grate and slag releasing channel 4, mucking machine 5, slag releasing channel 6, the fire grate segment of its inverse-push fire grate contain the stator a that is cemented on the body of heater 1 and are spaced between the two adjacent stators of front and back and the activity template b that is connected with reciprocating motion rod member 8; Wherein on the tail end place body of heater of the inverse-push fire grate 3 at slag output end place, be provided with bed depth adjusting device 7.Activity template in the inverse-push fire grate is opposite with the direction of advance of rubbish to the rubbing direction of the rubbish bed of material, that is to say, reciprocating motion rod member 8 in the fire grate drives back and forth upwards rubbing and rubbish is downward all the time by the component of conducting oneself with dignity of activity template b, thereby makes in rubbish the rolling in the counterclockwise direction in the bed of material to descending.
See that from Fig. 1 and Fig. 3 or Fig. 5 two inverse-push fire grates arranged side by side are arranged in the present embodiment, the tail end of each row inverse-push fire grate is respectively equipped with a cover bed depth adjusting device 7; The structure of this device also can see from Fig. 2 and Fig. 4 or Fig. 3 and Fig. 5, this device comprises the damper shaft 7d that installs in the driving mechanism that is connected on the body of heater, the bearing block on body of heater and is connected with driving mechanism, be fixed on the damper shaft can be by the block baffle plate 7a of bed depth of rotation change.
See that from Fig. 2 and Fig. 4 above-mentioned driving mechanism to be being hydraulic drive mechanism, the crank 7b that it includes the hydraulic cylinder 7c that is fixed on the body of heater, is connected with piston 7c ' in the hydraulic cylinder, and crank connection damper shaft 7d.Wherein install respectively in two plain bearing housing 7e that are arranged on the body of heater at the two ends of damper shaft 7d, and damper shaft is connected one at the overhanging end of plain bearing housing with crank 7b by it, can baffle plate 7a be rotated by crank 7b drive damper shaft 7d with piston when motion that is implemented in the hydraulic cylinder 7c; By baffle plate 7a with respect to the inverse-push fire grate less than the rotation in 180 ° of scopes, can realize baffle plate 7a to the bed of material block the height rising or decline, in case the rubbish material on the non-return pushing-type fire grate breaks away from fire grate prematurely, perhaps allow the rubbish material leave from fire grate early, the former makes the bed of material on the fire grate thicken then bed of material attenuate of the latter.
See that from Fig. 3 and Fig. 5 above-mentioned driving mechanism can also be an Electric Drive mechanism, it comprises the motor 7h that is fixed on the body of heater, the decelerator 7g that is connected with motor, and is connected the mechanical transmission mechanism 7f between reducer output shaft and the damper shaft.The spiral gear drive mechanism that this mechanical transmission mechanism is made up of a pair of helical gear, or the conical gear drive of a pair of conical gear composition, or Worm and worm-wheel gearing; Wherein the axis of two helical gear place axles in the spiral gear drive mechanism respectively with the output shaft and the damper shaft coaxial line of decelerator; The axis of two conical gear place axles in the conical gear drive respectively with the output shaft and the damper shaft coaxial line of decelerator; The output shaft coaxial line of the worm-wheel shaft in the Worm and worm-wheel gearing and damper shaft coaxial line, worm shaft and decelerator.Only represented it is Worm and worm-wheel gearing and do not represent spiral gear drive mechanism and conical gear drive among Fig. 3.
The inverse-push incinerator of the adjustable bed depth of present embodiment is when work, house refuse enters body of heater 1 from charging conduit 1a, be distributed on the inverse-push fire grate 3 through batcher 2, the rubbish bed of material is subjected to downward partical gravity and activity template are tilted to rubbing power to waste layer double action at the same time, make rubbish in descending process, spiral rolling, stir, broken, and the rubbish of newly sending into oblique upper, tiltedly the spent rubbish in below is instant fully mixes, dry, burning, when arriving the bottom of inverse-push fire grate, become lime-ash, entered mucking machine 5 through slag releasing channel 6 and discharge out of the furnace.The air that combustion process consumed provides from air compartment and the slag releasing channel 4 under the fire grate, and air intake makes progress from the fire grate bottom, and the air vent that passes on the fire grate segment is distributed in the continuous moving rubbish bed of material.
When burning disposal high heating value, low moisture house refuse, can start bed depth adjusting device 7; From Fig. 1 and Fig. 3, Fig. 5, see, at this moment the fuel tap that can open hydraulic cylinder 7c outwards stretches the piston 7c ' in the cylinder, then crank 7b promptly is being with damper shaft 7d to rotate an angle, baffle plate 7a fixed thereon is rotated in a clockwise direction downwards, baffle plate reduces the barrier height of rubbish and the rotation of damper shaft has driven immediately, at this moment the lime-ash of inverse-push fire grate tail end under fire grate segment promotes, fall in the slag releasing channel 6, rubbish bed of material attenuate gradually; Regulate the treating capacity that not only high heating value rubbish is fully burned but also has guaranteed rubbish by this.On the contrary, when burning disposal high-moisture, low heat value house refuse, but the fuel tap of reverse opening hydraulic cylinder 7c, the baffle plate 7a that is fixed on the damper shaft 7d makes progress along counterclockwise rotating, the height of baffle plate on fire grate increases so that interior piston 7c ' direction retraction, the crank 7b in cylinder of hydraulic cylinder 7c cylinder also driven immediately around damper shaft 7d backward rotation, the thickness of feed layer that is blocked on the fire grate thickens, thereby can prolong the burning time of rubbish on inverse-push fire grate 3; If accelerate the frequency of fire grate motion this moment more simultaneously, then can make in the bed depth scope of rubbish after this setting and fully be stirred, stir, burn, therefore and can not make rubbish under unburnt situation, just be pushed out the inverse-push fire grate because of the quickening of fire grate motion frequency, guarantee the treating capacity and the hot burn decrement rate of burning disposal high-moisture, low heat value house refuse.In sum, when burning disposal high-moisture, low heat value house refuse, can improve the fire grate motion frequency to strengthen agitaion the clean-burning while, make rubbish enough time of staying be arranged under the inverse-push fire grate, can not take out of outside the stove prematurely by heightening baffle plate to the barrier height of the bed of material again, thereby guarantee that incinerator hot burn decrement rate under stable operating load still keeps lower level.If under the situation that refuse thermal value uprises, by reducing the height of baffle plate, the motion frequency of the fire grate that slows down can shorten the time of staying of rubbish in stove, can keep certain burning load again simultaneously, guarantees the disposal ability of rubbish.Therefore, the inverse-push incinerator of the adjustable bed depth of present embodiment is under the prerequisite that guarantees garbage treatment quantity and hot burn decrement rate, can adapt to the bigger house refuse of burning disposal physics or calorific value fluctuation so that can also realize the incinerator of same model can the burning disposal zones of different, the house refuse of Various Seasonal, different weathers and obtain the combustion efficiency of setting.In addition, simple and reasonable, the simple to operation use that present embodiment is regulated is reliable, and economical and few, the long service life of fault.
Above-mentioned bed depth adjusting device 7 as to adopt be driving mechanism with Electric Drive mechanism as shown in Fig. 3 and Fig. 5, adjustment process when it handles the bigger rubbish of composition or calorific value fluctuation is similar with above-mentioned hydraulically powered bed depth adjusting device, and they all need to drive baffle plate on it by damper shaft and rotate the block height of the bed of material of an angle, increase or reduction baffle plate on fire grate.Different is with hydraulic drive mechanism; Electric Drive mechanism rotates clockwise or counterclockwise by control motor 7h work, rotates, changes the time of staying of rubbish on fire grate through decelerator 7g and mechanical transmission mechanism 7f control baffle plate 7a then.Therefore, with Electric Drive mechanism is the bed depth adjusting device of driving mechanism, equally can be under the prerequisite of garbage treatment quantity that guarantees incinerator and hot burn decrement rate, can adapt to burning disposal physics or calorific value and change big house refuse, with realize same stove domestic waste incineration can the burning disposal zones of different, the house refuse of Various Seasonal, different weathers and obtain the effect of setting.In addition, its adjusting simple and reasonable, simple to operation reliable, and fault is few, long service life.
Mechanical transmission mechanism 7f in the above-mentioned Electric Drive mechanism can select spiral gear drive mechanism for use according to the orientation and the angle of the locus between reducer output shaft and the damper shaft, or conical gear drive, or Worm and worm-wheel gearing.
The angle of inclination beta that the inverse-push incinerator of the adjustable bed depth of present embodiment, its inverse-push fire grate 3 and horizontal direction tilt is 20～30 ° of hot burn decrement rate of slag≤3% with the inverse-push incinerator of guaranteeing the adjustable bed depth of present embodiment.
Claims (6)
1, a kind of inverse-push incinerator of adjustable bed depth, it contains the body of heater (1) of a band charging conduit (1a), be contained in the batcher (2) in the body of heater, inverse-push fire grate (3), be positioned at air compartment and slag releasing channel (4) under the fire grate, mucking machine (5) and slag releasing channel (6), its fire grate segment contains the stator (a) that is cemented on the body of heater and is spaced between the two adjacent stators of front and back and the activity template (b) that is connected with reciprocating motion rod member (8), it is characterized in that: it is provided with bed depth adjusting device (7) on the body of heater at inverse-push fire grate tail end place, and this device is included in the damper shaft (7d) of installing in the bearing block (7e) of the terminal place of inverse-push fire grate body of heater, be fixed on the baffle plate (7a) that can change bed depth on the damper shaft by its rotation, that installs on body of heater can drive the driving mechanism that damper shaft (7d) is rotated.
2, the inverse-push incinerator of adjustable bed depth according to claim 1, it is characterized in that: said driving mechanism is a hydraulic drive mechanism, the crank (7b) that it includes the hydraulic cylinder (7c) that is connected on the body of heater (1), is connected with piston (7c ') in the hydraulic cylinder, and crank connection damper shaft (7d).
3, the inverse-push incinerator of adjustable bed depth according to claim 1, it is characterized in that: said driving mechanism is an Electric Drive mechanism, it comprises motor (7h), decelerator (7g), and be connected the output shaft of decelerator (7g) and the mechanical transmission mechanism between the damper shaft (7d), the wherein spiral gear drive mechanism formed by two helical gears of mechanical transmission mechanism, and the axis of two helical gear place axles in the spiral gear drive mechanism respectively with the output shaft and the damper shaft coaxial line of decelerator.
4, the inverse-push incinerator of adjustable bed depth according to claim 3, it is characterized in that: saidly be connected the output shaft of decelerator (7g) and the conical gear drive that the mechanical transmission mechanism between the damper shaft (7d) is made up of two conical gears, and the axis of two conical gear place axles respectively with the output shaft and the damper shaft coaxial line of decelerator.
5, the inverse-push incinerator of adjustable bed depth according to claim 3, it is characterized in that: saidly be connected the output shaft of decelerator (7g) and the mechanical transmission mechanism between the damper shaft (7d) is a Worm and worm-wheel gearing, and the output shaft coaxial line of worm-wheel shaft and damper shaft coaxial line, worm shaft and decelerator.
6, according to the inverse-push incinerator of claim 1 or 2 or 3 or 4 or 5 described adjustable bed depths, it is characterized in that: its inverse-push fire grate (3) is inclined to set, and the inclination angle of fire grate and horizontal direction (β) is 20～30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620106519 CN200940840Y (en) | 2006-08-09 | 2006-08-09 | Reversely pushing refuse incinerator having material layer height regulated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620106519 CN200940840Y (en) | 2006-08-09 | 2006-08-09 | Reversely pushing refuse incinerator having material layer height regulated |
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| Publication Number | Publication Date |
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| CN200940840Y true CN200940840Y (en) | 2007-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200620106519 Expired - Lifetime CN200940840Y (en) | 2006-08-09 | 2006-08-09 | Reversely pushing refuse incinerator having material layer height regulated |
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| CN (1) | CN200940840Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100494781C (en) * | 2006-08-09 | 2009-06-03 | 杭州新世纪能源环保工程股份有限公司 | Invers propeller garbage furnace capable of regulating height of bed of material |
| CN101225960B (en) * | 2008-01-30 | 2010-06-09 | 重庆三峰卡万塔环境产业有限公司 | Fire box of inverse push type destructor |
| CN103759270A (en) * | 2014-01-20 | 2014-04-30 | 扬州澄露环境工程有限公司 | Eccentric turnover type grate device |
| CN106871142A (en) * | 2017-04-13 | 2017-06-20 | 孙庆根 | Fire grate and household garbage particles burner |
| CN107990327A (en) * | 2017-12-16 | 2018-05-04 | 上海康恒环境股份有限公司 | Waste incinerator pusher mechanical synchronization running gear |
-
2006
- 2006-08-09 CN CN 200620106519 patent/CN200940840Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100494781C (en) * | 2006-08-09 | 2009-06-03 | 杭州新世纪能源环保工程股份有限公司 | Invers propeller garbage furnace capable of regulating height of bed of material |
| CN101225960B (en) * | 2008-01-30 | 2010-06-09 | 重庆三峰卡万塔环境产业有限公司 | Fire box of inverse push type destructor |
| CN103759270A (en) * | 2014-01-20 | 2014-04-30 | 扬州澄露环境工程有限公司 | Eccentric turnover type grate device |
| CN103759270B (en) * | 2014-01-20 | 2015-10-28 | 扬州澄露环境工程有限公司 | Eccentric turnover type grate device |
| CN106871142A (en) * | 2017-04-13 | 2017-06-20 | 孙庆根 | Fire grate and household garbage particles burner |
| CN107990327A (en) * | 2017-12-16 | 2018-05-04 | 上海康恒环境股份有限公司 | Waste incinerator pusher mechanical synchronization running gear |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20060809 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |