CN104566435A - Boiler coal feeding device capable of increasing coal combustion efficiency - Google Patents
Boiler coal feeding device capable of increasing coal combustion efficiency Download PDFInfo
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- CN104566435A CN104566435A CN201410341540.6A CN201410341540A CN104566435A CN 104566435 A CN104566435 A CN 104566435A CN 201410341540 A CN201410341540 A CN 201410341540A CN 104566435 A CN104566435 A CN 104566435A
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Abstract
The invention relates to a boiler coal feeding device capable of increasing coal combustion efficiency. The boiler coal feeding device comprises a coal hopper, wherein a roller is arranged at an outlet of the coal hopper; an elastic baffle plate is arranged under the roller and is obliquely arranged; an elastic assembly driving the elastic baffle plate to bounce up and down is arranged under the elastic baffle plate; a screening assembly is arranged under the elastic baffle plate and comprises an upper-layer screening plate and a lower-layer carrying plate; the upper end of the upper-layer screening plate is connected to the lower end of the elastic baffle plate in a lap-joint way; the lower end of the upper-layer screening plate is positioned right above a furnace bar, and an included angle between the upper-layer screening plate and the elastic baffle plate is 120 to 150 degrees; the lower-layer carrying plate is positioned under the upper-layer screening plate; the lower end of the lower-layer carrying plate is connected with the bottom end of the upper-layer screening plate; the upper end of the lower-layer carrying plate is positioned under the upper end of the upper-layer screening plate, and an included angle between the lower-layer carrying plate and the upper-layer screening plate is 20 to 30 degrees. Compared with the prior art, according to the boiler coal feeding device disclosed by the invention, the fuel coal can be more fully combusted, the heat efficiency is increased, energy is saved, the cost is reduced, and meanwhile, the electricity consumption and the fault rate of an auxiliary machine of the boiler are obviously reduced.
Description
Technical field
The present invention relates to a kind of boiler and enter device for coal, especially relate to a kind of coal supply apparatus for boiler improving efficiency of fire coal.
Background technology
It is simply direct fire coal is fallen into fire grate from coal bunker that the boiler of current use enters device for coal, then enters hearth combustion.Because containing certain particle in the fire coal in coal bunker, burning during burning, can be caused insufficient, waste fuel.
Chinese patent CN202598571U discloses a kind of boiler oil and enters stove burner, comprises bucket body: bucket body top is provided with coal-in port, and below coal-in port, side is provided with breaking down shovel elastic force baffle plate, and breaking down shovel elastic force baffle plate lower slide is provided with adjustable coal flashboard; Be provided with rotating cylinder in the middle part of bucket body, rotating cylinder is outside equipped with rib and dials device for coal, and rotating cylinder is connected to the driving wheel be arranged on below bucket body by driving chain, is coal breakage passage between rotating cylinder and bucket body, is a point coal channel below rotating cylinder; Bucket body lower end sidewall is provided with compound and divides multiple cribellum up and down; Bucket body bottom opening is just to the traveling-grate stoker be arranged on below bucket body.This utility model by installing separating screen device in bucket body, make that the bunker coal that got off by boiler coal bunker is loose through rotary drum, after coal flashboard control amount on screening plant, soft coal level little large under being formed on fire grate after mechanical grading again, the continuous moving finally by fire grate brings rational coal seam into hearth combustion.Make as-fired coal Thorough combustion, improve energy utilization rate.But this apparatus structure is too complicated, maintenance or use inconvenience.
Summary of the invention
Object of the present invention is exactly provide to overcome defect that above-mentioned prior art exists the coal supply apparatus for boiler that a kind of structure is simple, energy-saving and cost-reducing, improve efficiency of fire coal.
Object of the present invention can be achieved through the following technical solutions:
A kind of coal supply apparatus for boiler improving efficiency of fire coal, above the fire grate being arranged on boiler, comprise coal hopper, roller is provided with in coal hopper, described roller is located at the exit of coal hopper, elastic force baffle plate is provided with below described roller, this elastic force baffle plate is obliquely installed, the elastic component driving the upper and lower springing of elastic force baffle plate is provided with below described elastic force baffle plate, apart assembly is provided with below described elastic force baffle plate, the upper end of described apart assembly and the lower end of elastic force baffle plate overlap, and the lower end of apart assembly is positioned at above fire grate.
Described apart assembly comprises upper strata sieve plate and lower floor's bearing plate, and the upper end of described upper strata sieve plate is overlapped on the lower end of elastic force baffle plate, and the lower end of upper strata sieve plate is positioned at directly over fire grate, and the angle between described upper strata sieve plate and elastic force baffle plate is 120-150 °; Described lower floor's bearing plate is positioned at the below of upper strata sieve plate, and the lower end of lower floor's bearing plate connects with the bottom of upper strata sieve plate, the upper end of lower floor's bearing plate is positioned at the below of sieve plate upper end, upper strata, and the angle between described lower floor's bearing plate and upper strata sieve plate is 20-30 °.
Described upper strata sieve plate is the spaced apart surface plate being provided with vertical bar groove on it.
Described lower floor's bearing plate is complete surface plate.
Described elastic force baffle plate is complete surface plate, and the lower end of elastic force baffle plate is bent upwards into flanging, and the height of flanging is 2-3cm.Described elastic force baffle plate and the angle of horizontal plane are 30-50 °.
Described elastic component is spring.
Raw coal by coal hopper out afterwards through cylinder shunt after, fall on elastic force baffle plate, under elastic component effect, the upper and lower springing concussion of elastic force baffle plate, make coal above along with concussion, because there is flanging elastic force baffle plate lower end, first powder inside coal can drop on elastic force baffle plate, bulky grain coal cinder enters into apart assembly, more short grained coal cinder drops on lower floor's bearing plate by the bar groove of upper strata sieve plate, because the upper strata sieve plate gradient in apart assembly is steeper, therefore bulky grain drops in fire grate at first, and the ratio of slope upper strata sieve plate of lower floor's bearing plate is little, therefore the comparatively granule on lower floor's bearing plate drops in fire grate subsequently, and the Powdered coal on elastic force baffle plate is owing to there being the barrier effect of flanging, finally fall.Like this by the double action that vibration and gravity sieve, large little under forming coal grain before making raw coal enter burner hearth, the uniform stratification state of thickness distribution.The stratification state of this coal reduces coal bed ventilation resistance, makes Uniform Ventilation, can obviously improve coal burning condition.
Compared with prior art, apparatus structure of the present invention is simple, easy to use, for ease of maintenaince, use device of the present invention can make raw coal be divided on fire grate lower large little stratification state, make fired coal combustion more abundant, improve grate calorific intensity and coal combustion speed, improve the thermal efficiency, energy-saving and cost-reducing.Simultaneously due to the stratification state of fire coal, during burning, ventilation condition is improved, and induced draft electric current reduces, and power consumption and auxiliary machinery fault rate obviously reduce.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
A kind of coal supply apparatus for boiler improving efficiency of fire coal, as shown in Figure 1, above the fire grate being arranged on boiler, comprise coal hopper, be provided with roller 1 in coal hopper, roller 1 is located at the exit of coal hopper, elastic force baffle plate 2 is provided with below roller 1, this elastic force baffle plate 2 is obliquely installed, and be provided with the elastic component driving the springing of elastic force baffle plate about 2 below elastic force baffle plate 2, elastic component is spring.Be provided with apart assembly below elastic force baffle plate 2, the upper end of apart assembly and the lower end of elastic force baffle plate 2 overlap, and the lower end of apart assembly is positioned at above fire grate.
Apart assembly comprises upper strata sieve plate 3 and lower floor's bearing plate 4, and upper strata sieve plate 3 is surface plate being provided with vertical bar groove spaced apart on it.Lower floor's bearing plate 4 is complete surface plate.The upper end of upper strata sieve plate 3 is overlapped on the lower end of elastic force baffle plate 2, and the lower end of upper strata sieve plate 3 is positioned at directly over fire grate, and the angle between upper strata sieve plate 3 and elastic force baffle plate 2 is 120-150 °; Lower floor's bearing plate 4 is positioned at the below of upper strata sieve plate 3, and the lower end of lower floor's bearing plate 4 connects with the bottom of upper strata sieve plate 3, and the upper end of lower floor's bearing plate 4 is positioned at the below of upper strata sieve plate 3 upper end, and the angle between lower floor's bearing plate 4 and upper strata sieve plate 3 is 20-30 °.
Elastic force baffle plate 2 is complete surface plate, and the lower end of elastic force baffle plate 2 is bent upwards into flanging 21, and the height of flanging 21 is 2-3cm.Elastic force baffle plate 2 is 30-50 ° with the angle of horizontal plane.
Raw coal by coal hopper out afterwards through cylinder shunt after, fall on elastic force baffle plate 2, under elastic component effect, elastic force baffle plate about 2 springing is shaken, make coal above along with concussion, because there is flanging 21 elastic force baffle plate 2 lower end, first powder inside coal can drop on elastic force baffle plate 2, bulky grain coal cinder enters into apart assembly, more short grained coal cinder drops on lower floor's bearing plate 4 by the bar groove of upper strata sieve plate 3, because upper strata sieve plate 3 gradient in apart assembly is steeper, therefore bulky grain drops in fire grate at first, and the ratio of slope upper strata sieve plate 3 of lower floor's bearing plate 4 is little, therefore the comparatively granule on lower floor's bearing plate 4 drops in fire grate subsequently, and the Powdered coal on elastic force baffle plate 2 is owing to there being the barrier effect of flanging 21, finally fall.Like this by the double action that vibration and gravity sieve, large little under forming coal grain before making raw coal enter burner hearth, the uniform stratification state of thickness distribution.The stratification state of this coal reduces coal bed ventilation resistance, makes Uniform Ventilation, can obviously improve coal burning condition.
Above-mentioned is can understand and use invention for ease of those skilled in the art to the description of embodiment.Person skilled in the art obviously easily can make various amendment to these embodiments, and General Principle described herein is applied in other embodiments and need not through performing creative labour.Therefore, the invention is not restricted to above-described embodiment, those skilled in the art, according to announcement of the present invention, do not depart from improvement that scope makes and amendment all should within protection scope of the present invention.
Claims (7)
1. one kind is improved the coal supply apparatus for boiler of efficiency of fire coal, above the fire grate being arranged on boiler, comprise coal hopper, roller is provided with in coal hopper, it is characterized in that, described roller is located at the exit of coal hopper, elastic force baffle plate is provided with below described roller, this elastic force baffle plate is obliquely installed, the elastic component driving the upper and lower springing of elastic force baffle plate is provided with below described elastic force baffle plate, be provided with apart assembly below described elastic force baffle plate, the upper end of described apart assembly and the lower end of elastic force baffle plate overlap, and the lower end of apart assembly is positioned at above fire grate.
2. a kind of coal supply apparatus for boiler improving efficiency of fire coal according to claim 1, it is characterized in that, described apart assembly comprises upper strata sieve plate and lower floor's bearing plate, the upper end of described upper strata sieve plate is overlapped on the lower end of elastic force baffle plate, the lower end of upper strata sieve plate is positioned at directly over fire grate, and the angle between described upper strata sieve plate and elastic force baffle plate is 120-150 °; Described lower floor's bearing plate is positioned at the below of upper strata sieve plate, and the lower end of lower floor's bearing plate connects with the bottom of upper strata sieve plate, the upper end of lower floor's bearing plate is positioned at the below of sieve plate upper end, upper strata, and the angle between described lower floor's bearing plate and upper strata sieve plate is 20-30 °.
3. a kind of coal supply apparatus for boiler improving efficiency of fire coal according to claim 2, is characterized in that, described upper strata sieve plate is the spaced apart surface plate being provided with vertical bar groove on it.
4. a kind of coal supply apparatus for boiler improving efficiency of fire coal according to claim 2, is characterized in that, described lower floor's bearing plate is complete surface plate.
5. a kind of coal supply apparatus for boiler improving efficiency of fire coal according to claim 1, is characterized in that, described elastic force baffle plate is complete surface plate, and the lower end of elastic force baffle plate is bent upwards into flanging, and the height of flanging is 2-3cm.
6. a kind of coal supply apparatus for boiler improving efficiency of fire coal according to claim 1, is characterized in that, described elastic component is spring.
7. a kind of coal supply apparatus for boiler improving efficiency of fire coal according to claim 1, is characterized in that, described elastic force baffle plate and the angle of horizontal plane are 30-50 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410341540.6A CN104566435B (en) | 2014-07-17 | 2014-07-17 | Boiler coal feeding device capable of increasing coal combustion efficiency |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410341540.6A CN104566435B (en) | 2014-07-17 | 2014-07-17 | Boiler coal feeding device capable of increasing coal combustion efficiency |
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| Publication Number | Publication Date |
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| CN104566435A true CN104566435A (en) | 2015-04-29 |
| CN104566435B CN104566435B (en) | 2017-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410341540.6A Active CN104566435B (en) | 2014-07-17 | 2014-07-17 | Boiler coal feeding device capable of increasing coal combustion efficiency |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB682929A (en) * | 1950-05-15 | 1952-11-19 | David Leonard Swendsen | Improvements in or relating to feeding devices for breeze-fuels |
| CN2305562Y (en) * | 1997-01-31 | 1999-01-27 | 中国航空工业总公司第六二七研究所 | Positive rotation chain boiler coal feeder |
| CN2319699Y (en) * | 1997-10-23 | 1999-05-19 | 林�源 | Three-roller uniform layering coal feeder |
| CN2434551Y (en) * | 2000-05-25 | 2001-06-13 | 王蕾 | Chain non-screening layered feeder for boiler |
| CN203980329U (en) * | 2014-07-17 | 2014-12-03 | 上海大众祥源动力供应有限公司 | Improve the coal supply apparatus for boiler of efficiency of fire coal |
-
2014
- 2014-07-17 CN CN201410341540.6A patent/CN104566435B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB682929A (en) * | 1950-05-15 | 1952-11-19 | David Leonard Swendsen | Improvements in or relating to feeding devices for breeze-fuels |
| CN2305562Y (en) * | 1997-01-31 | 1999-01-27 | 中国航空工业总公司第六二七研究所 | Positive rotation chain boiler coal feeder |
| CN2319699Y (en) * | 1997-10-23 | 1999-05-19 | 林�源 | Three-roller uniform layering coal feeder |
| CN2434551Y (en) * | 2000-05-25 | 2001-06-13 | 王蕾 | Chain non-screening layered feeder for boiler |
| CN203980329U (en) * | 2014-07-17 | 2014-12-03 | 上海大众祥源动力供应有限公司 | Improve the coal supply apparatus for boiler of efficiency of fire coal |
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| Publication number | Publication date |
|---|---|
| CN104566435B (en) | 2017-02-01 |
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