CN204460694U - A kind of biomass thermal wind furnace - Google Patents
A kind of biomass thermal wind furnace Download PDFInfo
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- CN204460694U CN204460694U CN201420776856.3U CN201420776856U CN204460694U CN 204460694 U CN204460694 U CN 204460694U CN 201420776856 U CN201420776856 U CN 201420776856U CN 204460694 U CN204460694 U CN 204460694U
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Abstract
The utility model discloses a kind of biomass thermal wind furnace, comprise be positioned at combustion chamber below Bunker, with the expansion chamber of combustion chamber, the Heat Room that is communicated with expansion chamber, bottom, described combustion chamber is provided with fire grate, and described Bunker outlet at bottom place is provided with can the feed appliance of transfer the fuel at regular time and quantity; Described hot-blast stove inside arranges blast main, and one end of blast main is connected with the air blast being positioned at furnace shell outside, and the other end branches into blowpipe A, blowpipe B and blowpipe C; The end of the end of blowpipe A to be the end of combustion-supporting air outlet A, blowpipe B be combustion-supporting air outlet B, blowpipe C is heat exchange air outlet.The utility model compact conformation, rationally distributed, heating efficiency is high, smoke discharge amount is little, and can according to the burning time of biomass fuel at regular time and quantity in combustion chamber, add fuel, enable fuel Thorough combustion, improve combustion heat release efficiency.
Description
Technical field
The utility model relates to a kind of hot-blast stove, particularly relates to a kind of biomass thermal wind furnace using living beings as fuel.
Background technology
Hot-blast stove is modal energy conversion devices in people's lives and industry, the chemical energy of conventional energy resource or electric energy conversion are heat energy by it, energy is supplied to corresponding equipment with the form of hot blast, be usually used in drying machine, dryer, forming machine and heating etc., be also widely used at agricultural product Workplaces such as livestock and poultry cultivation workshop, green house of vegetables.The fuel normally coal of hot-blast stove; But along with the rising of increase and the coal price day by day of environmental protection pressure, living beings replace the fuel that coal becomes hot-blast stove just gradually.Mostly the biomass fuel of China is with stalk biomass such as maize straw, straw, cotton stalks for raw material, forms through granulator or stalk block making machine compacting.
Traditional biomass thermal wind furnace mainly comprises Bunker, combustion chamber and Heat Room, and Bunker is positioned at above combustion chamber.Be stored at the biomass fuel of Bunker in combustion chamber combustion, the air that the heat smoke that burning produces sends into Heat Room with drum carries out heat exchange, and cold flue gas is discharged by exhaust opening, and hot-air supplies to relevant device.In above-mentioned traditional hot-blast stove, the addition manner of biomass fuel relies on gravity to drop.Along with fuel sustained combustion on the fire grate of combustion chamber, the ashes produced after burning are fallen into above bottom of combustion chamber, fire grate by the gap of fire grate and occur space, therefore the biomass fuel in Bunker drops into combustion chamber by Action of Gravity Field, postcombustion, maintenance burning.
But this fuel addition manner still has many defects.Owing to being communicated with between Bunker with combustion chamber, therefore, biomass fuel is deposited in above fire grate all the time, and have impact on ventilation effect and oxygen supply, the combustion efficiency of fuel cannot ensure; And, when in Bunker biomass fuel store more time, also there will be fuel presses make non-Thorough combustion completely fuel be squeezed into bottom of combustion chamber by fire grate gap, have impact on the service efficiency of biomass fuel, improve heat cost.In addition, when biomass fuel burn incompletely, the toxic fuel gas such as carbon monoxide can be generated.The directly outer row of these gases, not only reduces the heat utilization ratio of hot-blast stove, and can cause the pollution of environment.
Utility model content
The utility model technical issues that need to address are to provide that a kind of sufficient combustion is thorough, heat utilization ratio is high, can add the biomass thermal wind furnace of fuel at regular time and quantity.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of biomass thermal wind furnace, comprise be positioned at combustion chamber below Bunker, with the expansion chamber of combustion chamber, the Heat Room that is communicated with expansion chamber, bottom, described combustion chamber is provided with fire grate, and described Bunker outlet at bottom place is provided with feed appliance; Described feed appliance comprises feed mechanism and rotating mechanism; Front end face and the rear end face of described feed mechanism are circle, and the top of feed mechanism, bottom symmetry offer the bucket-shaped material chamber A of cone, material chamber B; Part between material chamber A and material chamber B is blocking part; The rotating shaft that be provided with rotating mechanism control at the circle centre position of feed mechanism, feed mechanism can be driven to rotate; The framework be fixedly connected with Bunker is also provided with outside described feed mechanism;
Described hot-blast stove inside arranges blast main, and one end of blast main is connected with the air blast being positioned at furnace shell outside, and the other end branches into blowpipe A, blowpipe B and blowpipe C; The end of blowpipe A is the combustion-supporting air outlet A be positioned at below fire grate, and the end of blowpipe B is the end of the combustion-supporting air outlet B being positioned at top, combustion chamber, blowpipe C is the heat exchange air outlet being communicated with air duct in Heat Room.
Further improvement of the utility model is: the width of described combustion chamber is greater than Bunker width, form flue gas flow pass between the furnace wall top, the left and right sides of combustion chamber and the lateral wall of Bunker, be respectively arranged with two combustion-supporting air outlet B of longitudinal arrangement at the front inner wall of flue gas flow pass and the top of rear side inwall; Combustion-supporting air outlet B on described front inner wall and the combustion-supporting air outlet B on rear side inwall is oppositely arranged.
Further improvement of the utility model is: be provided with several air ducts in described Heat Room, and the entrance of air duct is connected with blowpipe C, and the outlet of air duct is to hot-blast outlet; Gap between air duct outer wall and Heat Room inwall is exhaust gases passes, and the entrance of exhaust gases passes is connected with the exhanst gas outlet of expansion chamber, and the outlet of exhaust gases passes is to exhaust opening.
Further improvement of the utility model is: the furnace shell front end face be positioned at above fire grate is provided with draws cinder notch, and the furnace shell front end face be positioned at below fire grate is provided with cleaning door; The furnace shell front end face be positioned at below expansion chamber is provided with dust removal port; The top of described Bunker front side wall offers charge door.
Owing to have employed technique scheme, the technological progress that the utility model obtains is:
The utility model provides a kind of biomass thermal wind furnace.This hot-blast stove compact conformation, rationally distributed, heating efficiency is high, smoke discharge amount is little, and can according to the burning time of biomass fuel at regular time and quantity in combustion chamber, add fuel, enable fuel Thorough combustion, improve combustion heat release efficiency.
The utility model is provided with feed appliance in Bunker exit.Feed appliance can rotate automatically according to the burning time of biomass fuel, thus the fuel in material chamber is added in combustion chamber at regular time and quantity, makes combustion heat release stable uniform, and then ensure that the stability of the hot blast temperature that hot-blast stove blows out.The use of feed appliance, isolates Bunker and combustion chamber, makes the fuel in combustion chamber pile up loose, oxygen abundant, is conducive to igniting; And effectively prevent unburnt fuel squeezed fall fire grate, cause the waste of fuel, decrease manual operation, reduce working strength.
The supply air system of the utility model product comprises blast main and three blowpipes, and air is admitted to diverse location by different blowpipes.The air-supply of combustion-supporting air outlet A is used for providing oxygen for biomass fuel, makes biomass fuel in a combustion chamber can Thorough combustion, keeps stable burning velocity to provide heat smoke with stable; The ashes output of fuel after Thorough combustion also greatly reduces and then decreases the flue dust carried secretly in heat smoke simultaneously.The imflammable gas Thorough combustion that the air-supply of combustion-supporting air outlet B can make combustion process produce, improve the utilization rate of biomass fuel, heating load significantly improves, and can effectively prevent toxic gas from leaking, and avoids environmental pollution.The air-supply of heat exchange air outlet is delivered to Heat Room air duct, is carried out heat exchange with the heat smoke of pipeline external, and the hot-air produced is for being the intensification of heating place.Above-mentioned three air outlets individually control, can adjust the air output of each air outlet according to the moisture of biomass fuel used, flammability etc. in use, by the Thorough combustion and the heat supply that regulate the oxygen content of combustion chamber to ensure biomass fuel, by the temperature regulating the air input of Heat Room to ensure hot-air after heat exchange, practical.
The heat smoke that in the utility model, combustion chamber produces also will through expansion chamber before entering Heat Room; most of flue dust in heat smoke can be separated by expansion chamber; thus reduce the flue dust entered in Heat Room; in order to avoid flue dust is attached on Heat Room inwall affect heat exchange efficiency; reduce the fume amount that discharged gas fume comprises, very environmental protection simultaneously.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is the main TV structure schematic diagram of the utility model feed appliance;
Fig. 3 is the side-looking structural representation of the utility model feed appliance;
Fig. 4 is the plan structure schematic diagram of the utility model feed appliance.
Wherein, 1, Bunker, 2, combustion chamber, 3, Heat Room, 4, expansion chamber, 5, air blast, 6, fire grate, 7, exhaust opening, 8, blast main, 9, blowpipe A, 10, combustion-supporting air outlet A, 11, blowpipe B, 12, combustion-supporting air outlet B, 13, blowpipe C, 14, heat exchange air outlet, 15, draw cinder notch, 16, cleaning door, 17, hot-blast outlet, 18, feed appliance, 181, framework, 1821, material chamber A, 1822, chamber B is expected, 183, blocking part, 184, rotating shaft, 19, furnace shell.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further details:
A kind of biomass thermal wind furnace, as shown in Figure 1, comprises furnace shell 19, is provided with Bunker 1, combustion chamber 2, Heat Room 3, expansion chamber 4 in furnace shell 19 inner chamber.
Described Bunker 1 is positioned at above combustion chamber 2, for splendid attire biomass fuel.Offer the charge door for adding fuel on the top of the front side wall of Bunker 1, charge door is equipped with gallery ports.Namely close gallery ports after being filled it up with by Bunker 1, when fuel fast after-flame, again open gallery ports add fuel; The process of adding fuel is intermittent operation, and labour intensity is low.Bottom Bunker 1, be provided with conical discharge port, conical discharge port bottom is provided with feed appliance 18.
As shown in Figure 2, Figure 3, Figure 4, feed appliance 18 comprises feed mechanism and controlling organization.Front end face and the rear end face of feed mechanism are circle, and the top of feed mechanism, bottom symmetry offer the bucket-shaped material chamber A1821 of cone, material chamber B1822; Entity part between material chamber A1821 and material chamber B1822 is blocking part 183.Be provided with the rotating shaft 184 running through feed mechanism at the circle centre position of feed mechanism, rotating shaft 184 is moved and is driven feed mechanism to rotate under the control of controlling organization.In the present embodiment, controlling organization is Electric Machine Control.Framework 181 is also correspondingly provided with in the outside of feed mechanism, framework 181 is fixedly connected on the sidewall of Bunker 1 conical discharge port, the upper and lower of framework 181 offers respectively and expects chamber A1821, expects the opening that chamber B1822 is corresponding, to realize the filling of biomass fuel and to draw off; The lateral wall of blocking part 183 and the madial wall of framework 181 fit tightly, and Bunker and combustion chamber are separated completely, are conducive to biomass fuel Thorough combustion in a combustion chamber.
At work, according to the moisture of biomass fuel and the capacity in material chamber, determine the time of the fuel after-flame of expecting chamber institute splendid attire, and the time interval of controlling organization automatic rotation 180 ° is set as the tail-off time.When expect chamber A1821 vertically upward, material chamber B1822 vertically downward, blocking part 183 be positioned at left and right time, material chamber A1821 be communicated with Bunker 1, biomass fuel fall into expects chamber A; Material chamber B1822 is communicated with combustion chamber 2.During the basic after-flame of the biomass fuel in room 2 to be combusted, controlling organization controls feed mechanism automatic rotation, and make material chamber A1821 vertically downward, the biomass fuel of its splendid attire falls into combustion chamber 2 and burns, material chamber B1822 contain fuel again vertically upward.By the continuous rotation of feed mechanism, carry out the interpolation at regular time and quantity of biomass fuel.When the moisture of biomass fuel used is excessive, burning velocity slows down, the time interval of automatic rotation can be adjusted by controlling organization, the highest to ensure the abundant after-flame of fuel, fuel availability.
Combustion chamber 2 is arranged on the below of Bunker 1, and is connected with expansion chamber 4.The below of combustion chamber 2 is provided with fire grate 6, and biomass fuel burns on fire grate 6, and the ashes that burning produces fall into bottom combustion chamber 2.The front end face being positioned at the furnace shell 19 above fire grate 6 is provided with and draws cinder notch 15, for removing the slag that biomass fuel combustion produces; The front end face being positioned at the furnace shell 19 below fire grate 6 is provided with cleaning door 16, for removing ashes.Below fire grate 6, be provided with combustion-supporting air outlet A10, combustion-supporting air outlet A10 is connected with blast main 8 by blowpipe A9.Air-supply from combustion-supporting air outlet A10 can provide sufficient oxygen, improve burning velocity for fuel combustion.
The width of described combustion chamber 2 is greater than the width of Bunker 1, forms flue gas flow pass between the furnace wall top, the left and right sides of combustion chamber 2 and the lateral wall of Bunker 1.Combustion chamber 2 is connected with expansion chamber 4 by this flue gas flow pass.The front inner wall and rear side inwall of flue gas flow pass are respectively arranged with 2 combustion-supporting air outlet B12, these 2 combustion-supporting air outlet B12 longitudinal arrangements; 2 combustion-supporting air outlet B12 on 2 on front inner wall combustion-supporting air outlet B12 and rear side inwall are oppositely arranged.The air-supply of combustion-supporting air outlet B12 is from air blast 5, carry through blast main 8 and blowpipe B11.When biomass fuel combustion is insufficient, the flammable toxic gases such as carbon monoxide can be produced; The imflammable gas that the air-supply of combustion-supporting air outlet B fully can mix with flue gas, provide sufficient oxygen to make to comprise in flue gas thoroughly burns, make the heating load of the thorough combustion heat release of biomass fuel, raising biomass thermal wind furnace on the one hand, the pollution that the outer row that effectively prevent toxic gas on the other hand causes environment.Number and the arrangement of combustion-supporting air outlet B12 can adjust according to the actual requirements.
Expansion chamber 4 is cavitys that a cross section is larger, and the flue dust of heat smoke in expansion chamber 4 in flow velocity reduction, flue gas is deposited to the bottom of expansion chamber 4 gradually.Position furnace shell 19 corresponding to expansion chamber 4 is provided with dust removal port, when fume amount accumulation is more in expansion chamber 4, can open dust removal port, concentrate cleaning flue dust.
Be admitted to Heat Room 3 through the heat smoke of expansion chamber 4 dedusting and carry out heat exchange.Heat Room 3 is positioned at above the both sides of combustion chamber 2, expansion chamber 4.Heat Room 3 inside is provided with several air duct longitudinally arranged, and the gap between air duct outer wall and Heat Room 3 inwall is exhaust gases passes.The entrance of air duct is connected with the heat exchange air outlet 14 of blowpipe C13, and the outlet of air duct is to hot-blast outlet 17; The entrance of exhaust gases passes is connected with the exhanst gas outlet of expansion chamber 4, and the outlet of exhaust gases passes is to exhaust opening 7.Except air duct entrance, air duct outlet, the outlet of exhaust gases passes entrance, exhaust gases passes, Heat Room inwall is sealing.Heat smoke from expansion chamber 4 enters the exhaust gases passes of Heat Room 3, and the air from air blast 5 sends into the air duct of Heat Room 3 via blowpipe C13, and heat smoke and air carry out heat exchange by the tube wall of air duct.Change thermogenetic hot-air from hot-blast outlet 17 discharge and be delivered to need heating place use, the cold flue gas completing heat exchange is discharged by exhaust opening 7.
Described charge door, draw in cinder notch, cleaning door and dust removal port and be provided with hermatic door.After hermatic door is closed, except air blast air-supply, cold flue gas smoke evacuation, hot-air air draft, whole hot-blast stove is in air-tight state.
The course of work of the present utility model is:
When biomass thermal wind furnace runs, be stored in by biomass fuel in Bunker, by the feed appliance at outlet at bottom place by fuel feeding combustion chamber at regular time and quantity, combustion-supporting air outlet A continues air-supply simultaneously, and biomass fuel is burnt on grate; The heat smoke that burning produces mixes with the air-supply of combustion-supporting air outlet B, makes the further combustion heat release of the imflammable gas in heat smoke.Then heat smoke enters expansion chamber sedimentation dedusting, and the heat smoke after dedusting is admitted to Heat Room, and carry out heat exchange with the air from heat exchange air outlet, hot-air drains into by hot-blast outlet place of need heating; The cold flue gas completing heat exchange is discharged by exhaust opening.
During work, cold air in environment is constantly blown in biomass thermal wind furnace by air blast, three strands are divided into: 1. carry by blowpipe A, deliver to below fire grate by combustion-supporting air outlet A, for providing sufficient oxygen for the fuel on fire grate, accelerating burning velocity by blast main's cold air entered in biomass thermal wind furnace; 2. carry by blowpipe B, deliver to top, combustion chamber by combustion-supporting air outlet B, for mixing, make the imflammable gas Thorough combustion comprised in heat smoke with the heat smoke that biomass fuel combustion produces; 3. carried, sent into by heat exchange air outlet the air duct of Heat Room by blowpipe C, carry out heat exchange with the heat smoke in Heat Room exhaust gases passes, add hot-air and drain into by hot-blast outlet place of need heating.
Claims (4)
1. a biomass thermal wind furnace, comprise the combustion chamber (2) being positioned at Bunker (1) below, the expansion chamber (4) be communicated with combustion chamber (2), the Heat Room (3) that is communicated with expansion chamber (4), described combustion chamber (2) bottom is provided with fire grate (6), it is characterized in that: described Bunker (1) outlet at bottom place is provided with feed appliance (18); Described feed appliance (18) comprises feed mechanism and rotating mechanism; Front end face and the rear end face of described feed mechanism are circle, and the top of feed mechanism, bottom symmetry offer the bucket-shaped material chamber A(1821 of cone), material chamber B(1822); Material chamber A(1821) with expect chamber B(1822) between part be blocking part (183); The rotating shaft (184) that be provided with rotating mechanism control at the circle centre position of feed mechanism, feed mechanism can be driven to rotate; The framework (181) be fixedly connected with Bunker (1) is also provided with outside described feed mechanism; The top of described framework (181), bottom offer respectively and expect chamber A(1821), expect chamber B(1822) corresponding opening, the madial wall of framework (181) and the lateral wall of blocking part (183) fit tightly;
Described hot-blast stove inside arranges blast main (8), and one end of blast main (8) air blast (5) outside with being positioned at furnace shell (19) is connected, and the other end branches into blowpipe A(9), blowpipe B(11) and blowpipe C(13); Blowpipe A(9) end be positioned at fire grate (6) below combustion-supporting air outlet A(10), blowpipe B(11) end be the combustion-supporting air outlet B(12 being positioned at combustion chamber (2) top), blowpipe C(13) end be the heat exchange air outlet (14) being communicated with air duct in Heat Room (3).
2. a kind of biomass thermal wind furnace according to claim 1, it is characterized in that: the width of described combustion chamber (2) is greater than Bunker (1) width, between the furnace wall top, the left and right sides of combustion chamber (2) and the lateral wall of Bunker (1), form flue gas flow pass; Two combustion-supporting air outlet B(12 of longitudinal arrangement are respectively arranged with) at the front inner wall of flue gas flow pass and the top of rear side inwall; Combustion-supporting air outlet B(12 on described front inner wall) with rear side inwall on combustion-supporting air outlet B(12) be oppositely arranged.
3. a kind of biomass thermal wind furnace according to claim 2, it is characterized in that: described Heat Room is provided with several air ducts in (3), entrance and the blowpipe C(13 of air duct) be connected, the outlet of air duct is to hot-blast outlet (17); Gap between air duct outer wall and Heat Room (3) inwall is exhaust gases passes, and the entrance of exhaust gases passes is connected with the exhanst gas outlet of expansion chamber (4), and the outlet of exhaust gases passes is to exhaust opening (7).
4. a kind of biomass thermal wind furnace according to any one of claim 1 ~ 3, it is characterized in that: furnace shell (19) front end face being positioned at fire grate (6) top is provided with draws cinder notch (15), and furnace shell (19) front end face being positioned at fire grate (6) below is provided with cleaning door (16); Furnace shell (19) front end face being positioned at expansion chamber (4) below is provided with dust removal port; The top of described Bunker (1) front side wall offers charge door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420776856.3U CN204460694U (en) | 2014-12-11 | 2014-12-11 | A kind of biomass thermal wind furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420776856.3U CN204460694U (en) | 2014-12-11 | 2014-12-11 | A kind of biomass thermal wind furnace |
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| Publication Number | Publication Date |
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| CN204460694U true CN204460694U (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420776856.3U Expired - Fee Related CN204460694U (en) | 2014-12-11 | 2014-12-11 | A kind of biomass thermal wind furnace |
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| Country | Link |
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| CN (1) | CN204460694U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240839A (en) * | 2015-09-18 | 2016-01-13 | 广西节得乐生物质能源科技有限公司 | Biomass fuel combustion device |
| CN107477566A (en) * | 2017-09-28 | 2017-12-15 | 安徽辰瑞达农业设备有限公司 | Fuel homogenizer and combustion furnace system |
-
2014
- 2014-12-11 CN CN201420776856.3U patent/CN204460694U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240839A (en) * | 2015-09-18 | 2016-01-13 | 广西节得乐生物质能源科技有限公司 | Biomass fuel combustion device |
| CN107477566A (en) * | 2017-09-28 | 2017-12-15 | 安徽辰瑞达农业设备有限公司 | Fuel homogenizer and combustion furnace system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20161211 |
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| CF01 | Termination of patent right due to non-payment of annual fee |