CN102840753A - Novel high temperature smoke fluidized bed furnace - Google Patents
Novel high temperature smoke fluidized bed furnace Download PDFInfo
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- CN102840753A CN102840753A CN 201210299266 CN201210299266A CN102840753A CN 102840753 A CN102840753 A CN 102840753A CN 201210299266 CN201210299266 CN 201210299266 CN 201210299266 A CN201210299266 A CN 201210299266A CN 102840753 A CN102840753 A CN 102840753A
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Abstract
The invention relates to a fluidized bed furnace for drying in the industry, in particular to a novel high temperature smoke fluidized bed furnace which is thorough in slag discharging and long in service life, and a coking phenomenon cannot happen. The novel high temperature smoke fluidized bed furnace comprises a furnace body (1), a fire blocking wall (2) is arranged inside the furnace body, the inside of the furnace body (1) is separated by the fire blocking wall (1) into a combustion chamber (3) and a mixing chamber (4). A coal inlet pipe (5) is arranged on the lateral wall of the furnace body (1) of the combustion chamber (3) in inclination mode, a wind distribution plate (6) is arranged at the bottom of the furnace body (1), and an air outlet (7) is arranged on the lateral wall of the furnace body (1) of the mixing chamber (4). The novel high temperature smoke fluidized bed furnace is characterized in that the top of the furnace body (1) is in an arc shape protruding upwards, the fire blocking wall (2) is vertically located at the lower portion of one side of the mixing chamber (4), and the upper portion is in an arc shape curving to the mixing chamber (4). The fire blocking wall (2) is located on one side of the mixing chamber (4) to be connected with the bottom of the mixing chamber (4) to form an inclined face (8) with the same inclination, and the tail end of the inclined face (8) is connected with the bottom end of the air outlet (7).
Description
Technical field
The present invention relates to desiccant fluidized bed furnace in a kind of industry, be specially a kind of new type high temperature flue gas fluidized bed furnace.
Background technology
Fluidized bed furnace is to be the basis with the fluidization technology, and solid particle constitutes fluidization bed pseudo boiling state under the effect of air-flow, be known as fluidized-bed or ebullated bed.Winkler that by Germany proposes solid material fluidised form technology in nineteen twenty-one, at first is used in chemistry and the metallurgical industry.The fifties, it is transplanted to the combustion field of boiler, and has obtained development.Solid fuel is held up by airflow flowing upwards in stove, in the certain height scope, makes tumbling motion up and down, and the burner hearth that burns with fluidization (or claiming boiling) state, so fluidized bed furnace is claimed fluid-bed combustion furnace again.
Fluidized bed furnace is with the conny that is crushed to certain particle size, rises with wind, on the certain altitude of burner hearth, becomes the burning of boiling shape.The burning of coal in fluidized bed furnace, neither on fire grate, carry out, neither as coal-powder boiler, be suspended in space combustion, but on boiling furnace charge bed, carry out.The outstanding advantage of fluidized bed furnace is, and is wide to coal adaptability, incendivity bituminous coal, anthracite, brown coal and gangue, and its another benefit is to make fuel combustion abundant, thereby improves the utilization rate of fuel.The mean temperature of the boiling bed of material is generally at 850-1050 ℃, and the bed of material is very thick, is equivalent to a big accumulation of heat pond; Wherein fuel only accounts for about 5%; Initiate coal grain just mixes with the high tens times scorching hot particle of temperature after getting into the bed of material, therefore can burn very soon, produces stable thermals source in a large number.
Fluidized bed furnace not only can burn fat coal, also can burn all kinds of colms that general grate furnace and chamber burner can not be burnt; Heat-transfer effect is fine in the bed, and the growing amount of nitrogen oxide is few in the flue gas, but existing fluidized bed furnace is because the defective of structure; In use heat flow is slow to make it, and easily close-burning, and firebreak falls tower easily; Life-span is short, and sediment and the scum silica frost in the stove all can not be removed completely simultaneously, influenced arranging of air-out greatly; The boiling situation is bad; Influenced the output of hot-fluid, variation has all taken place in the structure in the stove that is arranged so that of adding overflow and slag mouth and coal feed point, also air-flow and hot-fluid has been produced the influence of upsetting.
Summary of the invention
The object of the present invention is to provide a kind of residue-discharge convenience thorough, the new type high temperature flue gas fluidized bed furnace of close-burning phenomenon can not take place in long service life.
A kind of new type high temperature flue gas of the present invention fluidized bed furnace, it comprises body of heater 1, the firebreak 2 that is provided with in the body of heater 1, the combustion chamber 3 and mixing chamber 4 that body of heater 1 inside are separated to form by firebreak 2; Body of heater 1 sidewall of combustion chamber 3 tilts and is provided with coal feeding pipe 5, and the bottom is provided with air distribution plate 6; Body of heater 1 sidewall of mixing chamber 4 is provided with air outlet 7; It is characterized in that described body of heater 1 top is arc protruding upward; It is vertical that described firebreak 2 is positioned at a side lower part of combustion chamber 3, and top is to the crooked arc of mixing chamber 4; The side that firebreak 2 is positioned at mixing chamber 4 links to each other with mixing chamber 4 bottoms and forms the consistent inclined-plane 8 of gradient, and inclined-plane 8 is terminal to be connected with air outlet 7 bottoms.
Further, be evenly distributed with air vent 9 on the described air distribution plate 6, its top is tiltedly installed with ash discharge plate 10; Ash discharge plate 10 lower sides are provided with the ash-draining gate 11 hinged with body of heater 1; Corresponding air vent 9 is sealedly connected with ventilation duct 12 respectively on the air distribution plate 6; Ventilation duct 12 runs through ash discharge plate 10 and is provided with, and the upper end is respectively arranged with blast cap 13.
Further, described air distribution plate 6 belows are provided with the air compartment 14 that is vertebral body, and a side of air compartment 14 is connected with high pressure positive blower 16 through blast pipe 15.
Further, described coal feeding pipe 5 is provided with Pulverized Coal Bin 17, also is disposed with lock feeding machine 18, coal powder metering device 19 and screw feeder 20 between coal feeding pipe 5 and the Pulverized Coal Bin 17.
Further, also be provided with cleaning door 21 between described inclined-plane 8 and the air outlet 7, be provided with Blowing stopper 22 in the cleaning door 21; Below, mixing chamber 4 bottoms also is provided with the cavity 23 that the top is arcuation.
Further, all be provided with one deck refractory material on described body of heater 1 inwall and firebreak 2 and the inclined-plane 8; The tremie pipe 24 that is provided with to tilt to air outlet 7 is also run through at the top of mixing chamber 4.
A kind of new type high temperature flue gas of the present invention fluidized bed furnace, adopt above-mentioned technical scheme after, its beneficial effect is following:
1) utilizes the top of curved body of heater 1 top and firebreak 2; Quickened flowing of hot-air; Avoid the generation at dead angle, avoided close-burning to reduce the impact to body of heater 1 and firebreak 2, the inclined-plane that a side that cooperates firebreak 2 to be positioned at mixing chamber 4 again links to each other with mixing chamber 4 bottoms and forms simultaneously; Improve the stability of firebreak 2 greatly, prolonged service life.
2) through dust block board 10 that tilts and the ash-draining gate 11 that is positioned at blast cap 13 bottoms, can make things convenient for rapidly slag is discharged, the air-flow that does not influence simultaneously in the combustion chamber 3 distributes; The air compartment 14 that air distribution plate 6 bottoms are provided with is assigned to wind in the different ventilation pipe 12; In combustion chamber 3, form boiling section, reasonable in design, simple in structure; The thermal efficiency is high, and boiling is stable.
3) between inclined-plane 8 and air outlet 7, be provided with the cleaning door 21 that Blowing stopper 22 is installed; Control the folding of cleaning door 21 through the keying of Blowing stopper 22, thereby reach the effect that guarantees that oven dry and hot-fluid are carried, the while can be to remove the dust that falls in the mixing chamber 4 smoothly in heat supply only;, realizes material the sealing of mixing chamber 4 when being accomplished oven dry; Also below mixing chamber 4 bottoms through cavity 23 is set, alleviated body of heater 1 quality, strengthened structural strength.
4) at the lock feeding machine 18 that is provided with on successively on the coal feeding pipe 5, coal powder metering device 19 and screw feeder 20, and Pulverized Coal Bin 17; Make it in the coal process, not only can accurately control the coal amount; And can reduce the leakage of air-flow in pollution and the body of heater 1 of dust, and easy to use, safety and environmental protection.
Description of drawings
Accompanying drawing is the structural representation described in the instance of the present invention.
Among the figure: body of heater 1, firebreak 2, combustion chamber 3, mixing chamber 4, coal feeding pipe 5, air distribution plate 6; Air outlet 7, inclined-plane 8, air vent 9, ash discharge plate 10, ash-draining gate 11, ventilation duct 12; Blast cap 13, air compartment 14, blast pipe 15, high pressure positive blower 16, Pulverized Coal Bin 17, lock feeding machine 18; Coal powder metering device 19, screw feeder 20, cleaning door 21, Blowing stopper 22, cavity 23, tremie pipe 24.
The specific embodiment
The present invention is further made an explanation and explain below in conjunction with accompanying drawing.
A kind of new type high temperature flue gas of the present invention fluidized bed furnace, shown in accompanying drawing, it comprises body of heater 1, the firebreak 2 that is provided with in the body of heater 1 is the combustion chamber 3 and mixing chamber 4 on boundary with firebreak 2 in the body of heater 1; Body of heater 1 sidewall of combustion chamber 3 tilts and is provided with coal feeding pipe 5, and the bottom is provided with air distribution plate 6; Body of heater 1 sidewall of mixing chamber 4 is provided with air outlet 7; Wherein, body of heater 1 top is arc protruding upward, is beneficial to flowing of hot-air, can not form the dead angle, avoids close-burning; It is vertical that firebreak 2 is positioned at a side lower part of combustion chamber 3, and top is to the crooked arc of mixing chamber 4, and a side that is positioned at mixing chamber 4 links to each other with mixing chamber 4 bottoms and forms the inclined-plane 8 of gradient unanimity, and inclined-plane 8 ends are connected with air outlet 7 bottoms.When using the present invention to carry out thermal source output; From coal feeding pipe 5, be heated to coal dust in the combustion chamber 3; Boiling Combustion under the air-flow effect that air distribution plate 6 blows out, the air after the heating flow to output from air outlet 7 in the mixing chamber 4, and the space of less mixing chamber 4 has guaranteed the lowest loss of heat; Hot-fluid has also guaranteed the lowest loss of energy and body of heater 1 simultaneously at the equal camber of contact-making surface of body of heater 1 and firebreak 2.
On above-described basis, the present invention can also further optimize, and wherein, air distribution plate 6 tops are tiltedly installed with ash discharge plate 10, and ash discharge plate 10 lower sides are provided with the ash-draining gate 11 hinged with body of heater 1; Air distribution plate 6 is evenly distributed with on the air vent 9, and corresponding air vent 9 is sealedly connected with respectively and runs through the ventilation duct 12 that ash discharge plate 10 is provided with; Ventilation duct 12 upper ends are respectively arranged with blast cap 13, and air distribution plate 6 belows are provided with the air compartment 14 that is vertebral body, and a side of air compartment 14 is connected with high pressure positive blower 16 through blast pipe 15; Optimize the structure setting, when having guaranteed that cloth wind is stable, the problem that waste residue stops up and is difficult to discharge can not take place, also guaranteed the boiling space in the combustion chamber 3.
Wherein, Coal feeding pipe 5 is provided with Pulverized Coal Bin 17, also is disposed with lock feeding machine 18, coal powder metering device 19 and screw feeder 20 between coal feeding pipe 5 and the Pulverized Coal Bin 17, when coal, has broken away from experience control; Can be more accurate, realized sealing simultaneously to coal feeding pipe 5.
Wherein, also be provided with cleaning door 21 between inclined-plane 8 and the air outlet 7, be provided with Blowing stopper 22 in the cleaning door 21; Can clear up the dust that falls easily, can not leak in use simultaneously because of the setting of cleaning door 21; Below, last mixing chamber 4 bottoms also is provided with the cavity 23 that the top is arcuation, has alleviated the deadweight of body of heater 1, has improved structural strength.
Wherein, all be provided with one deck refractory material on body of heater 1 inwall and firebreak 2 and the inclined-plane 8, further prolonged service life; The tremie pipe 24 that is provided with to tilt to air outlet 7 is also run through at the top of mixing chamber 4; Can accomplish flash baking to material; After material is discharged from tremie pipe 24, directly contact, and enter into dryer completion subsequent operation from air outlet 7 with the shortest distance and the fastest speed with hot-fluid.
Claims (6)
1. new type high temperature flue gas fluidized bed furnace, it comprises body of heater (1), the firebreak (2) that is provided with in the body of heater (1), the combustion chamber (3) and the mixing chamber (4) that body of heater (1) inside are separated to form by firebreak (2); Body of heater (1) sidewall of combustion chamber (3) tilts and is provided with coal feeding pipe (5), and the bottom is provided with air distribution plate (6); Body of heater (1) sidewall of mixing chamber (4) is provided with air outlet (7); It is characterized in that described body of heater (1) top is arc protruding upward; It is vertical that described firebreak (2) is positioned at a side lower part of combustion chamber (3), and top is to the crooked arc of mixing chamber (4); The side that firebreak (2) is positioned at mixing chamber (4) links to each other with mixing chamber (4) bottom and forms the consistent inclined-plane (8) of gradient, and inclined-plane (8) end is connected with air outlet (7) bottom.
2. a kind of new type high temperature flue gas fluidized bed furnace as claimed in claim 1 is characterized in that, is evenly distributed with air vent (9) on the described air distribution plate (6), and its top is tiltedly installed with ash discharge plate (10); The side that ash discharge plate (10) is lower is provided with and the hinged ash-draining gate (11) of body of heater (1); Air distribution plate (6) is gone up corresponding air vent (9) and is sealedly connected with ventilation duct (12) respectively; Ventilation duct (12) runs through ash discharge plate (10) setting, and the upper end is respectively arranged with blast cap (13).
3. according to claim 1 or claim 2 a kind of new type high temperature flue gas fluidized bed furnace; It is characterized in that; Described air distribution plate (6) below is provided with the air compartment (14) that is vertebral body, and a side of air compartment (14) is connected with high pressure positive blower (16) through blast pipe (15).
4. a kind of new type high temperature flue gas fluidized bed furnace as claimed in claim 1; It is characterized in that; Described coal feeding pipe (5) is provided with Pulverized Coal Bin (17), also is disposed with lock feeding machine (18), coal powder metering device (19) and screw feeder (20) between coal feeding pipe (5) and the Pulverized Coal Bin (17).
5. a kind of new type high temperature flue gas fluidized bed furnace as claimed in claim 1 is characterized in that, also is provided with cleaning door (21) between described inclined-plane (8) and the air outlet (7), is provided with Blowing stopper (22) in the cleaning door (21); Below, mixing chamber (4) bottom also is provided with the cavity (23) that the top is arcuation.
6. a kind of new type high temperature flue gas fluidized bed furnace as claimed in claim 1 is characterized in that, all is provided with one deck refractory material on described body of heater (1) inwall and firebreak (2) and inclined-plane (8); The tremie pipe (24) that is provided with to tilt to air outlet (7) is also run through at the top of mixing chamber (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210299266 CN102840753A (en) | 2012-08-22 | 2012-08-22 | Novel high temperature smoke fluidized bed furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210299266 CN102840753A (en) | 2012-08-22 | 2012-08-22 | Novel high temperature smoke fluidized bed furnace |
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| CN102840753A true CN102840753A (en) | 2012-12-26 |
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| CN 201210299266 Pending CN102840753A (en) | 2012-08-22 | 2012-08-22 | Novel high temperature smoke fluidized bed furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157043A (en) * | 2015-10-09 | 2015-12-16 | 杨刚 | Special boiling furnace for strong-oxygen combustion sludge |
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2012
- 2012-08-22 CN CN 201210299266 patent/CN102840753A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157043A (en) * | 2015-10-09 | 2015-12-16 | 杨刚 | Special boiling furnace for strong-oxygen combustion sludge |
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Application publication date: 20121226 |