CN203258641U - High-water-content biomass fuel boiler - Google Patents
High-water-content biomass fuel boiler Download PDFInfo
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- CN203258641U CN203258641U CN 201320160328 CN201320160328U CN203258641U CN 203258641 U CN203258641 U CN 203258641U CN 201320160328 CN201320160328 CN 201320160328 CN 201320160328 U CN201320160328 U CN 201320160328U CN 203258641 U CN203258641 U CN 203258641U
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- biomass fuel
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Abstract
The utility model discloses a high-water-content biomass fuel boiler which comprises a boiler body. The boiler body comprises a hearth, an inclined reciprocating grate installed in a combustion chamber under the hearth, a smoke chamber, a grate air chamber, a tail portion flue and a chimney and further comprises an air blower for providing air circulation for combustion of the boiler, an air intake channel, a draft fan arranged in the front of the chimney and a sealed drying smoke chamber. A drying device is installed in the drying smoke chamber and comprises a shell body. A material discharging device is arranged on the top of the shell body. A smoke outlet is formed in a side wall above the shell body. A discharging opening is formed in the bottom of the shell body and directly communicated with the reciprocating grate. A smoke inlet is formed in the lower portion of the drying smoke chamber. A smoke inlet is formed in a side wall of the lower portion of the shell body. The smoke inlet in the drying smoke chamber is communicated with the smoke chamber through the flue. The smoke outlet is communicated with the chimney through the flue. Low-heating-value smoke exhausted by the boiler is used for evaporation and dehydration so as to save heat energy, reduce heat pollution and save energy.
Description
Technical field
The utility model relates to a kind of reciprocating-grate boiler that can be take high moisture content living beings as fuel.
Background technology
The boiler that uses at present the contour moisture content of single vinasse (water content is up to about 64%) low heat value biomass and be fuel has fluidized-bed combustion boiler, but it can not be held concurrently and burn the larger fuel of difference in specific gravity, because the blast of air blast and air quantity can not satisfy service requirement simultaneously, fluidized-bed combustion boiler is to requiring frequent starting and operating mode out of service also inapplicable in addition, and operation easier is large.
And adopt the burn words of high moisture content low heat value vinasse fuel of chain grate boiler, then need to build in addition a special large-scale drying plant place, adopt the large-sized rotary kiln professional equipment, investment is large, also need simultaneously to consume in addition the high-grade energies such as natural gas and do the oven dry energy, the shortcomings such as operating cost height.
The utility model content
For the technical problem of above-mentioned existence, the utility model provides a kind of high moisture content biomass fuel boiler, utilizes the low heat value flue gas drying high-moisture biomass fuel that self discharges, and need not to build in addition the oven dry place.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of high moisture content biomass fuel boiler comprises boiler body; Described boiler body comprises burner hearth, is installed in tilting reciprocating grate, smoke-box, grate wind chamber, back-end ductwork, chimney in the combustion chamber under the burner hearth; Also comprise for boiler combustion provide air circulation air blast, air inlet duct, be located at the air-introduced machine before the chimney, it is characterized in that: also comprise an oven dry smoke-box that is arranged on the sealing of reciprocal grate top; A drying unit is installed in the described oven dry smoke-box; Described drying unit comprises housing, and case top is provided with discharger; Have outlet flue on the sidewall of housing top, housing bottom is provided with discharging opening, and described discharging opening leads directly to reciprocal grate; Described oven dry smoke-box bottom has into mouth, is provided with venetian blind type on the sidewall of described lower housing portion and advances mouth; The mouth that advances on the oven dry smoke-box utilizes flue to be communicated with smoke-box; Described outlet flue utilizes flue to be communicated with chimney.
As a kind of preferred, described housing is two parts up and down, and its top is cuboid, and its underpart is inverted square centrum.Broad top is conducive to the oven dry of fuel, and gradually narrow bottom is conducive to concentrating of fuel.
As a kind of above-mentioned preferred further improvement, but described housing internal upper part is provided with the screen cloth of some layer double vibrationses.So that fuel evenly falls, prolong the time that contacts with hot flue gas as far as possible, reach the purpose of thermal dehydration evaporation.
As a kind of improvement, the bottom is provided with material-loosing apparatus in the described housing; Described material-loosing apparatus comprises a bearing pin that can rotate around the axle center, is fixed with some material toggling rods on the bearing pin.Prevent material " bridging " accumulation.
As a kind of improvement, but the stock stopping door of switch discharging opening is installed also on the described discharging opening.Regulate the size of control inventory.
As a kind of improvement, described combustion chamber and drying unit are equipped with the smoke barrier that prevents that flue gas from pouring in down a chimney on the adjacent edge; Described smoke blocking board can be around the shaft toward the upset of combustion chamber direction.Avoid high-temperature flue gas to scurry in the drying unit, cause the accident of fuel malcombustion.
As a kind of improvement, be provided with vertically some material levels on the described housing sidewall and detect meter; One or several in pull bar, radio frequency admittance and the detections of radar meter are counted in described material level detection.Whether arrive herein for detection of material in the housing, avoid failure of fuel to affect boiler work.
As a kind of improvement, described reciprocating fire grate top also is provided with coal feeding hole, be provided with the switch baffle plate in the coal feeding hole, in back-end ductwork, be provided with air preheater, the import of air preheater links to each other with air blast by pipeline, the outlet of air preheater links to each other with air inlet duct, in the connecting line of air preheater import and air blast, air preheater outlet and air inlet duct, air blast and air inlet duct, be equipped with air door, with flue that smoke-box links to each other in and with flue that outlet flue links to each other in also be equipped with air door.The utility model also can use separately the blending burning of fire coal or coal-fired and living beings;
Usefulness of the present utility model is:
Utilize the low heat value flue gas of boiler exhaust gas to come dehydration by evaporation, thereby saved heat energy, reduce thermal pollution, saved the energy, wine-tank drying apparatus need not aim at the fuel oven dry and establish in addition equipment above fire grate, thereby save equipment investment and saved again the shared place of equipment, reduce the fuel transfer fee, achieve many things at one stroke, when bio-fuel under feeding or fully for the time the utility model also can mix burn and pure burning in matter bituminous coal.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the enlarged drawing of drying unit.
Mark among the figure: 1 housing, 2 oven dry smoke-boxes, 3 advance mouth, 4 burner hearths, 5 combustion chambers, 6 reciprocal grates, 7 material-loosing apparatus, 8 smoke-box I, 9 smoke-box II, 10 chimneys (also for converging flue), 11 smoke barriers, 12 material levels and detect meter, 13 manholes, 14 observation doors, 15 dischargers, 16 stock stopping doors, 17 and advance mouth, 18 screen clothes, 19 outlet flues, 20 coal feeding holes, 21 air blasts, 22 air inlet ducts, 23 air preheaters, 24 grate wind chambers, 25 back-end ductworks, 26 switch baffle plates.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
As shown in Figure 1:
The utility model comprises boiler body; Described boiler body comprises burner hearth 4, is installed in tilting reciprocating grate 6, the smoke-box I8 that the convection current evaporation tube is installed, the smoke-box II9 that economizer is housed, back-end ductwork 25, chimney 10 (converging flue) in the combustion chamber 5 under the burner hearth 4; Reciprocating fire grate 6 tops are provided with coal feeding hole 20, are provided with switch baffle plate 26 in the coal feeding hole 20, and the below is provided with grate wind chamber 24; Also comprise for boiler combustion provide air circulation air blast 21, connect air blast 21 and grate wind chamber 24 air inlet duct 22, be located at the front air-introduced machine (not shown) of chimney 10 (converging flue), be located in the back-end ductwork 25 air preheater 23, the import of air preheater 23 links to each other with air blast 21 by pipeline, the outlet of air preheater 23 links to each other with air inlet duct 22, is equipped with the air door (not shown) in the connecting line of air preheater import and air blast 21, air preheater outlet and air inlet duct 22, air blast 21 and air inlet duct 22; Above reciprocal grate 6, be provided with the oven dry smoke-box 2 of sealing; A drying unit is installed in the described oven dry smoke-box 2; Described drying unit comprises housing 1, and before the housing 1, left and right three parts is suspended on the boiler crossbeam with carriage and is supported on the column, housing 1 top is provided with two dischargers 15; Have outlet flue 19 on the sidewall of housing 1 top, housing 1 bottom is provided with discharging opening, and described discharging opening leads directly to reciprocal grate 6; Described oven dry smoke-box 2 bottoms have into mouth 17, are provided with several venetian blind types on the sidewall of described housing 1 bottom and advance mouth 3; The mouth 17 that advances on the oven dry smoke-box utilizes flue to be communicated with smoke-box I8 and smoke-box II9; Described outlet flue 19 utilizes flue to be communicated with chimney 10 (converging flue), with flue that smoke-box links to each other in and with flue that outlet flue links to each other in also be equipped with the air door (not shown).
Housing is two parts about in the of 1, and its top is cuboid, and its underpart is inverted square centrum.But housing 1 internal upper part is provided with the screen cloth 18 of some layer double vibrationses.Housing 1 interior bottom is provided with material-loosing apparatus 7.Material-loosing apparatus 7 comprises a bearing pin that can rotate around the axle center, is fixed with some material toggling rods on the bearing pin.
But the stock stopping door 16 of switch discharging opening is installed also on the discharging opening.Combustion chamber 5 is equipped with the smoke barrier 11 that prevents that flue gas from pouring in down a chimney on the edge adjacent with drying unit; Described smoke blocking board 11 can be around the shaft toward the upset of combustion chamber 5 directions.
Be provided with vertically some material levels on housing 1 sidewall and detect meter 12; Described material level detection meter 12 is one or several in pull bar, radio frequency admittance and the detections of radar meter.Have on housing 1 sidewall and observe door 14 and manhole 13.
The utility model is in the time of pure burning biomass fuel, air door in switch baffle plate 26 in the coal feeding hole 20 and air preheater import and air blast 21 connecting lines and air preheater outlet are all closed with the air door in air inlet duct 22 connecting lines, because of fuel value lower, air preheater 23 is not worked, with in smoke-box 8 and the flue that 9 link to each other and all open with the air door in the flue that outlet flue 19 links to each other, utilize air blast 21 that air is burnt with fuel mix by the grate wind chamber 24 that air inlet duct 22 is passed under the reciprocal grate 6; High moisture content biomass fuel is poured into housing 1 from discharger 15, and fuel sieves rear even whereabouts by screen cloth 18, utilize the flue gas of introducing from smoke-box I8 and smoke-box II9 fully to contact oven dry after, enter reciprocal grate 6 from the discharging opening of housing 1 bottom and burn; Enter chimney 10 (converging flue) with the water vapour that forms after the biomass fuel heat exchange and cooled flue gas through outlet flue 19, flue, discharged by air-introduced machine;
If need pure burning high-quality bituminous coal, only need close stock stopping door 16 with smoke-box 8 and flue that 9 link to each other in reach with flue that outlet flue 19 links to each other in air door, air door and the air preheater opened in switch baffle plate 26 and air preheater import and air blast 21 connecting lines export the air door interior with air inlet duct 22 connecting lines, add coal-fired getting final product from coal feeding hole 20, air preheater 23 enters duty; As wanting coal-fired and living beings blending burning, switch baffle plate 26, stock stopping door 16 and each air door are all opened, but the size of aperture separately, need to just finish after trial run repeatedly is normal, can realize that blending burns.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (8)
1. a high-moisture biomass fuel boiler comprises boiler body; Described boiler body comprises burner hearth, is installed in tilting reciprocating grate, smoke-box, grate wind chamber, back-end ductwork, chimney in the combustion chamber under the burner hearth; Also comprise for boiler combustion provide air circulation air blast, air inlet duct, be located at the air-introduced machine before the chimney, it is characterized in that: also comprise an oven dry smoke-box that is arranged on the sealing of reciprocal grate top; A drying unit is installed in the described oven dry smoke-box; Described drying unit comprises housing, and case top is provided with discharger; Have outlet flue on the sidewall of housing top, housing bottom is provided with discharging opening, and described discharging opening leads directly to reciprocal grate; Described oven dry smoke-box bottom has into mouth, is provided with venetian blind type on the sidewall of described lower housing portion and advances mouth; The mouth that advances on the oven dry smoke-box utilizes flue to be communicated with smoke-box; Described outlet flue utilizes flue to be communicated with chimney.
2. high-moisture biomass fuel boiler according to claim 1 is characterized in that: described housing is two parts up and down, and its top is cuboid, and its underpart is inverted square cone.
3. high-moisture biomass fuel boiler according to claim 2 is characterized in that: but described housing internal upper part is provided with the screen cloth of some layer double vibrationses.
4. high-moisture biomass fuel boiler according to claim 1 is characterized in that: the bottom is provided with material-loosing apparatus in the described housing; Described material-loosing apparatus comprises a bearing pin that can rotate around the axle center, is fixed with some material toggling rods on the bearing pin.
5. according to high-moisture biomass fuel boiler claimed in claim 1, it is characterized in that: but the stock stopping door of switch discharging opening also is installed on the described discharging opening.
6. high-moisture biomass fuel boiler according to claim 1 is characterized in that: described combustion chamber and drying unit are equipped with the smoke barrier that prevents that flue gas from pouring in down a chimney on the adjacent edge; Described smoke barrier can be around the shaft toward the upset of combustion chamber direction.
7. high-moisture biomass fuel boiler according to claim 1 is characterized in that: be provided with vertically some material levels on the described housing sidewall and detect meter; One or several in pull bar, radio frequency admittance and the detections of radar meter are counted in described material level detection.
8. according to claim 1 to 7 arbitrary described high-moisture biomass fuel boilers, it is characterized in that: described reciprocating fire grate top also is provided with coal feeding hole, be provided with the switch baffle plate in the coal feeding hole, in back-end ductwork, be provided with air preheater, the import of air preheater links to each other with air blast by pipeline, the outlet of air preheater links to each other with air inlet duct, at air preheater import and air blast, air preheater outlet and air inlet duct, be equipped with air door in the connecting line of air blast and air inlet duct, with flue that smoke-box links to each other in and with flue that outlet flue links to each other in also be equipped with air door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320160328 CN203258641U (en) | 2013-04-02 | 2013-04-02 | High-water-content biomass fuel boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320160328 CN203258641U (en) | 2013-04-02 | 2013-04-02 | High-water-content biomass fuel boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203258641U true CN203258641U (en) | 2013-10-30 |
Family
ID=49471201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320160328 Expired - Lifetime CN203258641U (en) | 2013-04-02 | 2013-04-02 | High-water-content biomass fuel boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203258641U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214766A (en) * | 2014-09-17 | 2014-12-17 | 苏州新协力环保科技有限公司 | Biomass particle burner with automatic drying function |
| CN104279547A (en) * | 2014-10-21 | 2015-01-14 | 广州优的新能源科技有限公司 | High-moisture fuel fired steam boiler |
| CN104654278A (en) * | 2015-01-21 | 2015-05-27 | 浙江杭振锅炉有限公司 | Reciprocating-type grate boiler |
| CN110686269A (en) * | 2019-09-27 | 2020-01-14 | 亿利洁能科技(武威)有限公司 | Solid waste utilization method for boiler co-combustion of biomass |
-
2013
- 2013-04-02 CN CN 201320160328 patent/CN203258641U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214766A (en) * | 2014-09-17 | 2014-12-17 | 苏州新协力环保科技有限公司 | Biomass particle burner with automatic drying function |
| CN104279547A (en) * | 2014-10-21 | 2015-01-14 | 广州优的新能源科技有限公司 | High-moisture fuel fired steam boiler |
| CN104654278A (en) * | 2015-01-21 | 2015-05-27 | 浙江杭振锅炉有限公司 | Reciprocating-type grate boiler |
| CN110686269A (en) * | 2019-09-27 | 2020-01-14 | 亿利洁能科技(武威)有限公司 | Solid waste utilization method for boiler co-combustion of biomass |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131030 |