CN202647795U - Double water-cooled oscillating grate - Google Patents
Double water-cooled oscillating grate Download PDFInfo
- Publication number
- CN202647795U CN202647795U CN 201220227028 CN201220227028U CN202647795U CN 202647795 U CN202647795 U CN 202647795U CN 201220227028 CN201220227028 CN 201220227028 CN 201220227028 U CN201220227028 U CN 201220227028U CN 202647795 U CN202647795 U CN 202647795U
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- grate
- water
- cooled
- furnace grate
- oscillating
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Abstract
The utility model discloses a double water-cooled oscillating grate which comprises a front water-cooled oscillating grate, a rear water-cooled oscillating grate and an oscillating mechanism. Both the front water-cooled oscillating grate and the rear water-cooled oscillating grate comprise water-cooled membrane walls, are respectively connected with the water-cooled wall of a hearth through flexible pipes and are inclined downwards along the motion direction of fuels, the front grate is lapped on the rear grate, and a sealing baffle is arranged between the front grate and the rear grate and used for stopping the fuels from leaking. The fuels are fed into the front water-cooled oscillating grate by a feeder and are preheated and dried by the aid of high-temperature flue gas radiating heat, so that moisture is separated out. Standing time of the fuels in the front grate is controlled by adjusting the oscillating frequency of the front grate, the fuels gradually move backwards in the operation process and are transmitted to the rear water-cooled oscillating grate, small ventilation holes are uniformly arranged on the rear grate, the lower portion of the rear grate is connected with an air chamber, the fuels sufficiently burn under the combined action of the high-temperature flue gas and primary air, move backwards along with oscillation of the rear grate and fall into a slag discharge opening after burning out, and the burning efficiency of the double water-cooled oscillating grate is greatly improved.
Description
Technical field
The utility model belongs to the biomass fuel boiler technical field, relates in particular to a kind of vibrating-grate stoker of biomass fuel boiler.
Background technology
Biomass resource is as renewable resource, aspect main energy resource structure, played increasing effect take coal in improvement, country is also giving support on policy and popularization aspect the comprehensive utilization biomass resource, and the upsurge of Large scale construction biomass fuel power plant forms.Biomass boiler is as one of three large main frames of power plant, and the characteristic that can its combustion apparatus fully adapt to domestic biomass fuel is most important.At present the biomass electric power plant boiler all adopts the single vibration fire grate form of imported technology, and this burning form is for directed fuel, and the moisture content of fuel is had certain limitation; And what obtain from the purchase of domestic fuel market usually is high moisture fuel, even pluralities of fuel mixed form, so that biomass boiler fuel combustion in actual moving process lags behind, uncombusted is just discharged by the cinder notch that falls, fuel is combustion instability on the single vibration fire grate, disturbing phenomenon occurs, efficiency of combustion is low.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and the domestic high-moisture biomass fuel of a kind of adaptation and multiple mixing biomass fuel are provided, and can improve two water-cooling vibration furnace grates of equipment efficiency of combustion.
The technical scheme that the utility model adopts for achieving the above object is:
A kind of pair of water-cooling vibration furnace grate comprises fire grate and vibrating mechanism, it is characterized in that: described fire grate is comprised of front water-cooling vibration furnace grate, rear water-cooling vibration furnace grate; Described front water-cooling vibration furnace grate, rear water-cooling vibration furnace grate consist of by the water-cooled membrane wall, and front water-cooling vibration furnace grate, rear water-cooling vibration furnace grate are connected with furnace wall cooling by front flexible pipe, rear flexible pipe respectively.
In order to make fuel be detained the rational time at fire grate, described front water-cooling vibration furnace grate, rear water-cooling vibration furnace grate are downward-sloping along the direction of motion of fuel, front water-cooling vibration furnace grate is overlapped on the rear water-cooling vibration furnace grate, is provided with sealing baffle between front water-cooling vibration furnace grate, the rear water-cooling vibration furnace grate.
In order to improve efficiency of combustion, rear water-cooling vibration furnace grate described in the utility model is provided with air vent.
The working method of of the present utility model pair of water-cooling vibration furnace grate is: fuel is sent into front water-cooling vibration furnace grate by batcher, utilizes the high-temperature flue gas radiant heat in addition preheating of fuel, drying herein, separates out moisture.Adjust the fire grate vibration frequency and control fuel in the time of staying of front fire grate.Fuel is progressively mobile backward in the running, reaches rear water-cooling vibration furnace grate.Front and back fire grate lap-joint is provided with sealing baffle, stops spilling of fuel.Rear fire grate has been evenly arranged airing hole, and the bottom connects air compartment, and under the acting in conjunction of high-temperature flue gas and a wind, full combustion of fuel is also mobile backward with the vibration of fire grate, and the afterburnt falls into slag-drip opening, has greatly improved the efficiency of combustion of equipment.Its beneficial effect is apparent.
Description of drawings
Fig. 1 is that the master of the two water-cooling vibration furnace grates of the utility model looks schematic diagram.
Fig. 2 is the schematic top plan view of the two water-cooling vibration furnace grates of the utility model.
Among the figure: water-cooling vibration furnace grate before the flexible pipe before the 1-, 2-, water-cooling vibration furnace grate behind the 3-, flexible pipe behind the 4-, 5-sealing baffle, 6-vibrating mechanism, 7-vibrating mechanism.
The specific embodiment
Also by reference to the accompanying drawings the utility model is described further below by non-limiting embodiment.
Fig. 1, Fig. 2 are the schematic diagram of a kind of specific embodiment of the two water-cooling vibration furnace grates of the utility model, this pair water-cooling vibration furnace grate is comprised of front water-cooling vibration furnace grate 2, rear water-cooling vibration furnace grate 3, front water-cooling vibration furnace grate 2, rear water-cooling vibration furnace grate 3 are respectively equipped with vibrating mechanism 6, vibrating mechanism 7, front water-cooling vibration furnace grate 2, rear water-cooling vibration furnace grate 3 consist of by the water-cooled membrane wall, and material adopts 15CrMo; Front water-cooling vibration furnace grate 2, rear water-cooling vibration furnace grate 3 are connected with furnace wall cooling by front flexible pipe 1, rear flexible pipe 4 respectively, and the material that front flexible pipe 1, rear flexible pipe 4 adopt is 13CrMo44; Front water-cooling vibration furnace grate 2, rear water-cooling vibration furnace grate 3 are downward-sloping along the direction of motion of fuel, front water-cooling vibration furnace grate 2 is overlapped on the rear water-cooling vibration furnace grate 3, be provided with sealing baffle 5 between front water-cooling vibration furnace grate 2, the rear water-cooling vibration furnace grate 3, the material that adopts is 12Cr1MoV, and rear water-cooling vibration furnace grate 3 is provided with air vent.
More than cited embodiment only for understanding the utility model; be not to be restriction to the described technical scheme of the utility model; the those of ordinary skill in relevant field; on the basis of the described technical scheme of claim; can also make multiple variation or distortion, the variation that all are equal to or distortion all should be encompassed within the claim protection domain of the present utility model.
Claims (3)
1. a two water-cooling vibration furnace grate comprises fire grate and vibrating mechanism, and it is characterized in that: described fire grate is comprised of front water-cooling vibration furnace grate, rear water-cooling vibration furnace grate; Described front water-cooling vibration furnace grate, rear water-cooling vibration furnace grate consist of by the water-cooled membrane wall, and front water-cooling vibration furnace grate, rear water-cooling vibration furnace grate are connected with furnace wall cooling by front flexible pipe, rear flexible pipe respectively.
2. according to claim 1 pair of water-cooling vibration furnace grate, it is characterized in that: described front water-cooling vibration furnace grate, rear water-cooling vibration furnace grate are downward-sloping along the direction of motion of fuel, front water-cooling vibration furnace grate is overlapped on the rear water-cooling vibration furnace grate, is provided with sealing baffle between front water-cooling vibration furnace grate, the rear water-cooling vibration furnace grate.
3. according to claim 1 and 2 pair of water-cooling vibration furnace grate, it is characterized in that: described after vibration fire grate is provided with air vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220227028 CN202647795U (en) | 2012-05-21 | 2012-05-21 | Double water-cooled oscillating grate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220227028 CN202647795U (en) | 2012-05-21 | 2012-05-21 | Double water-cooled oscillating grate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202647795U true CN202647795U (en) | 2013-01-02 |
Family
ID=47416895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220227028 Expired - Lifetime CN202647795U (en) | 2012-05-21 | 2012-05-21 | Double water-cooled oscillating grate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202647795U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708129A (en) * | 2019-01-22 | 2019-05-03 | 济南锅炉集团有限公司 | Combine water-cooled grate |
-
2012
- 2012-05-21 CN CN 201220227028 patent/CN202647795U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708129A (en) * | 2019-01-22 | 2019-05-03 | 济南锅炉集团有限公司 | Combine water-cooled grate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |
|
| CX01 | Expiry of patent term |