CN202675312U - Water-cooled grate bars of water-cooled reciprocating multi-stage hydraulic mechanical type grate furnace - Google Patents
Water-cooled grate bars of water-cooled reciprocating multi-stage hydraulic mechanical type grate furnace Download PDFInfo
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- CN202675312U CN202675312U CN 201220336692 CN201220336692U CN202675312U CN 202675312 U CN202675312 U CN 202675312U CN 201220336692 CN201220336692 CN 201220336692 CN 201220336692 U CN201220336692 U CN 201220336692U CN 202675312 U CN202675312 U CN 202675312U
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Abstract
The utility model relates to water-cooled grate bars of a water-cooled reciprocating multi-stage hydraulic mechanical type grate furnace. A water-cooled pipe is arranged on each grate bar and is used for cooling the grate bar; and the water-cooled pipe is arranged on each grate bar in a serpentine mode. The grate bars are cooled through the water-cooled pipes, so that the temperature of a grate can be reduced, and the heat stress of the grate bars during running is reduced; and therefore, damage to the grate bars due to high temperature can be avoided, the service life of the grate bars is prolonged, cost is saved, loss of materials is reduced, and the running cost is reduced; and due to the adoption of the water-cooled grate bars, the application range of fuel is wide, and biomass, domestic garbage with high calorific value, industrial garbage and medical garbage are burnt, and waste heat is utilized to generate power.
Description
Technical field
The utility model relates to the incinerator field, and particularly, the utility model relates to the water bar of the reciprocal multistage hydraulic mechanical type of a kind of water-cooled grate furnace.
Background technology
Waste incineration is to realize one of main path of garbage decrement, innoxious and recycling treatment.At present waste incineration becomes the main path of garbage disposal gradually, and rubbish is through modern burning disposal, and volume generally can reduce 80%-90%, can eliminate various pathogen simultaneously, and harmful substance is converted into harmless object, can also realize the utilization of resource.Because the kind of rubbish is different, it can be divided into house refuse, high heating value house refuse, industrial refuse and medical waste etc. several, rubbish is carried out in the burning process because the calorific value that produces after the water content of every kind of rubbish and the burning is different, often need different incinerators to process, usually select the incinerator of water-cooling vibration furnace grate to process for high heating value house refuse, industrial refuse and medical waste.In addition, adopt the incinerator of water-cooling vibration furnace grate also to comprise biomass combustion furnace, in the face of the present situation of energy worsening shortages, its development and utilization to biomass energy has great importance.
The structure of the incinerator that comprises water-cooling vibration furnace grate used in the prior art usually as shown in Figure 1, mainly by water-cooling vibration furnace grate 1, vibrating motor 6, the compositions such as flexible cooling tube and water-cooling wall, wherein, described water-cooling vibration furnace grate 1 is inclined on the base by certain bracing or strutting arrangement, its inclined degree can be regulated as required, and driven by vibrating motor 6, water-cooling vibration furnace grate is by front flexible connection pipe 4 and front water screen header or coolant outlet 2 UNICOMs, water-cooling vibration furnace grate is by rear flexible connection pipe 5 and rear water screen header or coolant outlet 3 UNICOMs, and formation cooling water circuit, in burning process, take away a part of heat by the evaporation of cooling water, to avoid the fire grate excess Temperature, cause the loss of fire grate, guarantee simultaneously the normal discharge of slag, fuel can be burnt fully efficiently.The concrete setting of fire grate segment 9 and water cooling tube 10 as shown in Figure 2 in the described fire grate, be provided with certain interval between the described fire grate segment, water cooling tube 10 is arranged in the interval of described fire grate segment 9, passes into cooling water by water inlet adapter 8 and water outlet adapter 7 fire grate segment is lowered the temperature.
Although existing water-cooling vibration furnace grate has well solved the problem of grate overheating in the combustion process, but water-cooling vibration furnace grate is in vibrational state during owing to working, and the water-cooling wall at boiler two ends maintains static, must be provided with the gap between the water-cooling wall of fire grate and both sides, simultaneously because the setting of water cooling tube, also formed the gap between the fire grate, can cause from the inleakage of grate surface both sides excessive during described excesssive gap, irrational air quantity occurring distributes, cause the fuel on the grate surface can not normal combustion, cause combustion heat loss, in addition, a large amount of inorganization air-supplies of bleeding from described gap can increase heat loss due to exhaust gas, increase the power consumption of air blast, reduce boiler efficiency.
When processing for low-calorie rubbish, can select multiple reciprocal grate, take the described garbage incinerator fire grate of Fig. 4 as example, described fire grate comprises that a plurality of reciprocal unit 11-15(are respectively Unit first to the 5th), but the fire grate segment of these fire grates does not all possess water cooling function, therefore burning high heating value rubbish, biomass fuel, can be because the excessive loss that excess Temperature causes fire grate segment when industrial refuse and medical waste, also can cause simultaneously because excess Temperature causes that lime-ash melts at grate surface, stop up the air port of grate surface, the after-flame that is unfavorable for fuel also is unfavorable for deslagging, and more easily burns out fire grate segment.In addition, also has following shortcoming during described fire grate burning exotic fuels: easily fire grate segment is caused loss because the material of high heating value produces high temperature when burning, mostly the action that adds existing air feed system and fire grate is the manual adjustments of carrying out according to operations staff's experience, the experience shadow that is subjected to subjective factor and operations staff is to large and can not adjust according to the variation of refuse thermal value timely, cause the combustion efficiency of rubbish or unclassified stores relatively poor, birth slag rate is higher, and is large on the impact of fire grate.
Therefore, no matter be water-cooled grate of the prior art or common garbage incinerator fire grate all are not suitable for other kinds for a kind of burning object design fuel, or there is not a problem of water-cooled cooling, and in above-mentioned all fire grate combustion processes owing to there not being a temperature monitoring system, can not carry out real-time detection and control to the combustion case on the fire grate segment, so present fire grate segment and fire grate are improved to improve its efficiency of combustion, reduce the wastage, the applicability that increases fire grate segment and fire grate has great importance.
The utility model content
For the deficiencies in the prior art, the utility model provides the water bar of the reciprocal multistage hydraulic mechanical type of a kind of water-cooled grate furnace, can be applicable to living beings, high heating value house refuse, industrial refuse and medical waste, the problem that does not have water cooling equipment to improve existing incinerator, realization reduces the loss of fire grate segment to the cooling of fire grate segment.
Be equipped with water cooling tube on the water bar of the reciprocal multistage hydraulic mechanical type of water-cooled described in the utility model grate furnace, be used for described fire grate segment is cooled off.
As preferably, described water cooling tube is serpentine bend and is arranged on the described fire grate segment.
As preferably, described fire grate segment is provided with installation axle hole, described water cooling tube is provided with cooling water outlet near an end of described installation axle hole, is provided with cooling water intake away from an end of described installation axle hole, and described water inlet all links to each other with cooling circulating water with delivery port.
As preferably, described cooling circulating water is supplied with by header.
As preferably, described fire grate segment is provided with the elastic wear-resisting scraper plate.
As preferably, described fire grate segment is fixed grate film and slip fire grate segment.
As preferably, described fixed grate film is provided with the thermocouple for thermometric.
In addition, the utility model also provides the reciprocal multistage hydraulic mechanical type of a kind of water-cooled grate furnace, and described grate furnace comprises above-mentioned water bar.
The utility model provides the water bar of the reciprocal multistage hydraulic mechanical type of a kind of water-cooled grate furnace, realizes the cooling to fire grate segment, improves the loss of fire grate segment, has the following advantages:
1, fire grate segment cools off by water cooling tube, can reduce the fire grate temperature, the thermal stress of fire grate when reducing operation, thus can avoid fire grate segment because the service life of the damage that high temperature causes and prolongation fire grate segment, save cost, reduced spillage of material, reduced operating cost.
2, owing to adopting water bar, the accommodation of fuel is more extensive, can carry out burning disposal and utilize cogeneration living beings, high heating value house refuse, industrial refuse, medical waste; Simultaneously, because the area thermic load of water-cooled grate is larger, so that the transmit bed area of same capability reduces, save floor occupying area; In addition, because the adjusting of a wind does not need to consider the factor of fire grate cooling, primary air flow can by the required supply of burning, be conducive to the accurate adjusting of incinerator.
Description of drawings
Following accompanying drawing of the present utility model is used for understanding the utility model at this as a part of the present utility model.Shown in the drawings of embodiment of the present utility model and description thereof, be used for explaining device of the present utility model and principle.In the accompanying drawings,
Fig. 1 is the structural representation that contains the combustion furnace of water-cooling vibration furnace grate in the prior art;
Fig. 2 is the structural representation of water-cooling vibration furnace grate in the prior art;
Fig. 3 is the structural representation of water bar in the utility model;
Fig. 4 is the overall structure schematic diagram of water-cooled grate in the utility model;
Fig. 5 is that fire grate segment thermocouple of the present utility model is arranged schematic diagram;
Fig. 6 is the arrangement schematic diagram of thermocouple on the utility model fixed grate film.
The specific embodiment
In the following description, having provided a large amount of concrete details understands the utility model more thoroughly in order to provide.Yet, it is obvious to the skilled person that the utility model can need not one or more these details and implemented.In other example, for fear of obscuring with the utility model, be not described for technical characterictics more well known in the art.
In order thoroughly to understand the utility model, detailed step will be proposed, so that the water bar of the reciprocal multistage hydraulic mechanical type garbage of the water-cooled incinerator that explaination the utility model proposes in following description.Obviously, execution of the present utility model is not limited to the specific details that those skilled in the art has the knack of.Preferred embodiment of the present utility model is described in detail as follows, yet except these were described in detail, the utility model can also have other embodiments.
Should be understood that, when using in this manual term " to comprise " and/or when " comprising ", it indicates and has described feature, integral body, step, operation, element and/or assembly, does not exist or additional one or more other features, integral body, step, operation, element, assembly and/or their combination but do not get rid of.
The variety of issue that exists in order to solve present incinerator in the utility model, the water bar of the reciprocal multistage hydraulic mechanical type of a kind of water-cooled grate furnace is provided, described water bar is provided with water cooling tube 19, be used for described fire grate segment is cooled off, wherein, described fire grate segment can be slip fire grate segment and fixed grate film.
As preferably, described water cooling tube 19 integral body are that serpentine bend is arranged, described water cooling tube is arranged in the below of fire grate segment supporting surface 18, described water cooling tube integral body is and is horizontally disposed with, the vertically upper afterbody that extends to fire grate segment from an end that is provided with axis hole along fire grate segment, wherein, straight-tube portion in the water cooling tube is along being horizontally through described fire grate segment, then after turning back, the bend pipe connection connects again a transverse tube, so repeatedly, and to form described serpentine bend, as shown in Figure 3, water cooling tube arranges below the fire grate supporting surface, from the distance of combustible more close to, better to the cooling effect of fire grate segment, and described water cooling tube does not arrange in whole fire grate segment, but only being arranged at the below of fire grate segment supporting surface 18, consumptive material is less, cost.Wherein, the direction that vertically refers to the fire grate segment overall alignment of described fire grate segment, consistent with the combustible moving direction, laterally be the axial of fire grate segment, horizontal and vertical all with reference to this explanation when in the utility model, not doing specified otherwise.
As preferably; described water cooling tube arranges sparse degree and can select according to the fuel value of combustible and the material of selected fire grate segment; as long as can realize fire grate segment is cooled off; play a protective role and get final product; do not have strict restriction; those skilled in the art can adjust according to actual conditions; as further preferred; water bar in the utility model is formed by special heat resisting cast steel manufacturing; so that fire grate segment is when equipment moves; namely guarantee to have enough so-called mechanical strength and rigidity, guarantee that again the fire grate segment surface has good anti-wear performance.As further preferred, described fire grate segment is provided with elastic wear-resisting scraper plate 20, can reduce to face mutually the friction between the two grate furnace sheets, and then the service life of having improved fire grate segment.Dual-side at fire grate also is provided with cooling chamber.Adopt cooling air to make the external temperature of equipment unlikely too high, also play a part simultaneously the refractory material of protection side wall fire grate segment inside.
As preferably; for mechanical strength and the rigidity that guarantees fire grate segment; and when burning good heat dispersion; described water cooling tube can design according to the concrete structure of fire grate segment when arranging; for example; for the slip fire grate segment; the place that is provided with floor near installation axle hole can make water cooling tube more sparse; can not destroy described floor; as further preferred, described water cooling tube also further extends to the end of fire grate segment, for example also is provided with cold water pipe in the outside of elastic wear-resisting scraper plate 20; strengthen the cooling effect of fire grate segment, fire grate segment is played further protective effect.
As preferably, described water cooling tube is provided with cooling water outlet near an end of installation axle hole, end away from installation axle hole is provided with cooling water intake, described water inlet all links to each other with cooling circulating water with delivery port, because fire grate is obliquely installed, by above-mentioned setting recirculated water is up flowed from the bottom, be full of whole water cooling tube to guarantee cooling water, guarantee its cooling effect.As further preferred, described cooling circulating water can be supplied with by header, cooling water circulation is used, further, described water inlet is connected with delivery port and can be connected with header by the elasticity bent pipe, described header can be arranged at the both sides of fire grate, rather than is arranged at the two ends of combustion furnace in the prior art.
The utility model also provides the reciprocal multistage hydraulic mechanical type of a kind of water-cooled grate furnace, described grate furnace comprises above-mentioned water bar, in addition, this grate furnace also comprises feeding system, transmit bed, wind supply system and Secondary Air supply system, described transmit bed longitudinally is divided into five unit, described five unit are divided into dryer section with described transmit bed integral body along the rubbish moving direction, burning zone and after-flame section, described each unit is comprised of several slip fire grate segments and fixed grate film, wherein, be equipped with water cooling tube 19 on described slip fire grate segment and the fixed grate film, be used for described fire grate segment is cooled off.
As preferably, each unit all is comprised of 3 row's slip fire grate segments and 3 row's fixed grate films in described five unit, fixed grate film is identical with the structure of slip fire grate segment, burning living beings and high heating value rubbish time-division other places in stationary state and state slidably, the structure of slip fire grate segment as shown in Figure 3, mainly comprise installation axle hole, fire grate segment supporting surface 18, water cooling tube 19 and scraper plate 20, but fire grate described in the utility model is not limited only to this embodiment.
Owing between the fire grate segment relative motion being arranged, so the accuracy of manufacture of fire grate segment is had relatively high expectations, not only require fire grate segment to have higher dimensional accuracy, and require fire grate segment to have higher surface accuracy, and higher shape and positional precision.Fuel is pushed on the fire grate in the stove by the feed fire grate, then carries out drying, burning and after-flame, then drains into dragveyer, finally enters lime-ash storage hole.
Water cooling tube described in the utility model changes the method that is arranged at the fire grate interval in the prior art, make between the fire grate of the present utility model arrange more even, and no longer include the interval, reduced between the fire grate inleakage excessive, solve the unreasonable distribution of air quantity, caused the fuel on the grate surface can not normal combustion, caused the problem of combustion heat loss, make on the fire grate air quantity and Temperature Distribution more even, further improve combustion efficiency.Simultaneously, fire grate segment cools off by water cooling tube, can reduce the fire grate temperature, the thermal stress of fire grate when reducing operation, thereby can avoid fire grate segment because saved cost, reduced spillage of material the service life of the damage that high temperature causes and prolongation fire grate segment, reduce operating cost; The fire grate assembly is modular construction, and installation accuracy is high, and installation rate is fast, and cost is lower.Because adopt water bar, the accommodation of fuel is more extensive, can carry out burning disposal and utilize cogeneration living beings, high heating value house refuse, industrial refuse, medical waste; Simultaneously, because the area thermic load of water-cooled grate is larger, so that the transmit bed area of same capability reduces, save floor occupying area; In addition, because the adjusting of a wind does not need to consider the factor of fire grate cooling, primary air flow can by the required supply of burning, be conducive to the accurate adjusting of incinerator.
Fuel is pushed on the transmit bed by the feed fire grate in the utility model, then carries out drying, burning and after-flame.Transmit bed comprises slip fire grate segment and fixed grate film.Consider the expanded by heating of fire grate segment when operation, when equipment is installed, can leave certain gap between the fire grate segment and between fire grate segment and the equipment sidewall, because it is very little that described gap is compared with larger interval in the prior art, therefore can not distribute to air quantity of the present utility model impacts.As preferably, in order to reduce fuel from the leakage rate of this gap, and for a wind that enters from the fire grate bottom is evenly distributed at the fire grate device interior, the inside of described fire grate segment also is welded with the dust block board of stainless steel material.For the fire grate segment of different installed positions, also be not quite similar the leakage ash of minimizing fire grate that can maximum possible with shape and the position of the stainless steel dust block board of its welding.
The technical program is provided with the measuring point to the fire grate segment temperature, and the temperature of fire grate segment in service is carried out Real-Time Monitoring, is used for slip fire grate and travelling grate are controlled.
Be illustrated in figure 5 as fire grate thermocouple of the present utility model and arrange schematic diagram, Fig. 6 is the furnace bed top view of waste incineration, and it specifically comprises 5 unit, and each unit comprises a plurality of slip fire grate segments and fixed grate film.For the concrete arrangement of above-mentioned fire grate thermocouple can for: for every row's fixed grate film of described each unit, from the 3rd fire grate segment in left side, every 4 fire grate segments a thermocouple is set; The arrangement of the thermocouple on each fixed grate film as shown in Figure 6, described the installation of TC is on the bottom surface of described top stove cover plate.Here the concrete arrangement that need to prove above-mentioned fire grate thermocouple only is a concrete example of the present utility model; be not to limit the utility model; obviously also have for a person skilled in the art other possible alternative or simple distortion, but all belong to protection domain of the present utility model.
The utility model is illustrated by above-described embodiment, but should be understood that, above-described embodiment just is used for for example and the purpose of explanation, but not is intended to the utility model is limited in the described scope of embodiments.It will be understood by those skilled in the art that in addition; the utility model is not limited to above-described embodiment; can also make more kinds of variants and modifications according to instruction of the present utility model, these variants and modifications all drop in the utility model scope required for protection.Protection domain of the present utility model is defined by the appended claims and equivalent scope thereof.
Claims (8)
1. the water bar of the reciprocal multistage hydraulic mechanical type of a water-cooled grate furnace is characterized in that, is equipped with water cooling tube on the described fire grate segment, is used for described fire grate segment is cooled off.
2. the water bar of the reciprocal multistage hydraulic mechanical type of water-cooled according to claim 1 grate furnace is characterized in that, described water cooling tube is serpentine bend and is arranged on the described fire grate segment.
3. the water bar of the reciprocal multistage hydraulic mechanical type of water-cooled according to claim 1 grate furnace, it is characterized in that, described fire grate segment is provided with installation axle hole, described water cooling tube is provided with cooling water outlet near an end of described installation axle hole, end away from described installation axle hole is provided with cooling water intake, and described water inlet all links to each other with cooling circulating water with delivery port.
4. the water bar of the reciprocal multistage hydraulic mechanical type of water-cooled according to claim 3 grate furnace is characterized in that, described cooling circulating water is supplied with by header.
5. the water bar of the reciprocal multistage hydraulic mechanical type of water-cooled according to claim 1 grate furnace is characterized in that, described fire grate segment is provided with the elastic wear-resisting scraper plate.
6. the water bar of the reciprocal multistage hydraulic mechanical type of water-cooled according to claim 1 grate furnace is characterized in that, described fire grate segment is fixed grate film and slip fire grate segment.
7. the water bar of the reciprocal multistage hydraulic mechanical type of water-cooled according to claim 6 grate furnace is characterized in that, described fixed grate film is provided with the thermocouple for thermometric.
8. the reciprocal multistage hydraulic mechanical type of a water-cooled grate furnace is characterized in that, described grate furnace comprises the described water bar of one of claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220336692 CN202675312U (en) | 2012-07-11 | 2012-07-11 | Water-cooled grate bars of water-cooled reciprocating multi-stage hydraulic mechanical type grate furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220336692 CN202675312U (en) | 2012-07-11 | 2012-07-11 | Water-cooled grate bars of water-cooled reciprocating multi-stage hydraulic mechanical type grate furnace |
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| Publication Number | Publication Date |
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| CN202675312U true CN202675312U (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220336692 Expired - Lifetime CN202675312U (en) | 2012-07-11 | 2012-07-11 | Water-cooled grate bars of water-cooled reciprocating multi-stage hydraulic mechanical type grate furnace |
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| CN (1) | CN202675312U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106322410A (en) * | 2016-08-17 | 2017-01-11 | 光大环保技术装备（常州）有限公司 | Side-wall water-cooled furnace grate segment and incinerator |
-
2012
- 2012-07-11 CN CN 201220336692 patent/CN202675312U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106322410A (en) * | 2016-08-17 | 2017-01-11 | 光大环保技术装备（常州）有限公司 | Side-wall water-cooled furnace grate segment and incinerator |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130116 |