CN102705829A - Fixed grate incinerator - Google Patents
Fixed grate incinerator Download PDFInfo
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- CN102705829A CN102705829A CN2011100741556A CN201110074155A CN102705829A CN 102705829 A CN102705829 A CN 102705829A CN 2011100741556 A CN2011100741556 A CN 2011100741556A CN 201110074155 A CN201110074155 A CN 201110074155A CN 102705829 A CN102705829 A CN 102705829A
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- grate
- water
- incinerator
- cooled
- furnace
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Abstract
The invention belongs to the field of waste disposal equipment and discloses a fixed grate incinerator. The fixed grate incinerator comprises an incinerator body made of a refractory material and a water-cooled grate, wherein the water-cooled grate transversely passes through the middle lower part of the incinerator body, and a water outlet of the water-cooled grate is higher than a water inlet; and an angle formed between a plane of the grate and a horizontal plane is 3-5 degrees. High-pressure air supply pipes are uniformly and densely distributed on the wall of the incinerator body and the bottom of the incinerator, high-pressure air is introduced into the high-pressure air supply pipes, and the flow velocity of the high-pressure air is 30-100 m/s. The fixed grate incinerator has the beneficial effects that the existing water-cooled jacket type grate furnace and the existing refractory material type grate furnace are recombined in structure, the advantages of high hearth temperature and complete waste incineration of the incinerator body made of the refractory material are combined with the advantage of long service life of the water-cooled grate, the defects of lower grate temperature and incomplete waste incineration of a traditional water-cooled jacket type furnace are overcome, and the defects of easiness in high-temperature oxidization and burnout and short service life of a cast iron fire-proof grate are also overcome.
Description
Technical field
The invention belongs to the refuse treatment plant field, relate to the fixed grate incinerator.
Background technology
Burn solid waste such as medical waste, aviation rubbish, house refuse, spoil, wood chip, waste paper and generally adopt the fixed grate incinerator, following two kinds of structures are generally arranged: a kind of is water-cooling jacket formula structure, and a kind of is structure of refractory.Water-cooling jacket formula structure adopts water-cooled grate, though can guarantee the service life of fire grate, because the characteristic of solid waste adopts the grate furnace furnace temperature of water-cooling jacket formula generally to have only 500～600 ℃, solid waste burning is not thorough.Though adopt structure of refractory can guarantee to get into dual firing chamber's flue-gas temperature; Reduce the Fuel Consumption of dual firing chamber, and fire box temperature can reach more than 800 ℃, solid waste burning is more thorough; But because incineration temperature is higher; Discharge a large amount of corrosive substances in the waste incineration process, adopt casting furnace grate, the easy high-temperature oxydation of fire grate or burn out.
Summary of the invention
The objective of the invention is above-mentioned deficiency, a kind of fixed grate incinerator is provided to prior art.
The object of the invention can be realized through following technical scheme:
The fixed grate incinerator comprises body of heater and the water-cooled grate processed by refractory material, and described water-cooled grate passes across the body of heater middle and lower part, and its delivery port is higher than water inlet, and the angle of fire grate plane and horizontal plane is 3 °～5 °.
Described water-cooled grate caliber is 50～108mm, and the outer wall spacing of adjacent furnace grate tube is 60～120mm.
Described furnace body wall and furnace bottom evenly gather the high pressure secondary air channel are set.
Described upper of furnace body is provided with dog-house, and bottom of furnace body one side is provided with mends the wind interface, mends wind interface one end and is connected with blast apparatus, and an end communicates with described secondary air channel.
The body of heater bottom is provided with the twice ashpit, lays respectively at the both sides up and down of fire grate.
Beneficial effect:
The present invention recombinates the structure of existing water-cooling jacket formula and refractory material formula grate furnace, and body of heater adopts refractory material, and fire grate adopts water-cooled grate; Refractory material burner hearth of the furnace body temperature is high; Waste incineration advantage completely combines with the advantage of water-cooled fire grate long service life, and it is on the low side to have overcome traditional water-cooling jacket formula grate furnace temperature, the halfway defective of waste incineration; Avoid the easy oxidation of employing casting furnace grate stove high temperature again and burnt out the deficiency that service life is short.
Furnace body wall of the present invention and furnace bottom evenly gather the high pressure secondary air channel are set, and mend wind around discarded object and bottom the fire grate, make oxygenating more evenly more abundant, and pressure-air gets into after preheating in the stove, fuel saving.Pressure-air speed 30～100m/s, burning velocity speeds 5～10 times than generally, makes discarded object have enough air to reach complete combustion effect.
Fixed grate incinerator of the present invention relatively is fit to burn medical waste, aviation rubbish, house refuse, spoil, wood chip, waste paper etc., also is fit to burn general industry discarded objects such as rubber, the chemical industry dregs of fat.
Description of drawings
Fig. 1 fixed grate incinerator of the present invention front view.
1 is dog-house, and 2 is furnace body wall, and 3 is secondary air channel, and 4 is ashpit, and 5 is water-cooled grate, and 6 for mending the wind interface, and 7 is body of heater.
Fig. 2 fixed grate incinerator of the present invention right view.
1 is dog-house, and 3 is secondary air channel, and 4 is ashpit, and 5 is water-cooled grate, and 7 is body of heater.
The specific embodiment
Embodiment 1
Fixed grate incinerator, structural representation are seen Fig. 1 and Fig. 2; Comprise the body of heater 7 and water-cooled grate 5 processed by refractory material, described water-cooled grate 5 passes across body of heater 7 middle and lower parts, and its delivery port is higher than water inlet, and the angle of fire grate plane and horizontal plane is 3 °.Fire grate has certain inclination, and the aqueous vapor that helps in the water-cooled grate 5 is discharged, and prevents to cause the local pressure increase that fire grate is broken because bubble can not in time be discharged.
The water-cooled grate caliber is 50mm, and the outer wall spacing of adjacent furnace grate tube is 80mm.
Described furnace body wall 2 and furnace bottom evenly gather high pressure secondary air channel 3 are set, and wherein feed pressure-air, and the pressure-air flow velocity is 30～100m/s.
Described body of heater 7 tops are provided with dog-house 1; Body of heater 7 bottoms are provided with twice ashpit 4; Lay respectively at the both sides up and down of water-cooled grate 5, body of heater 7 bottoms one side is provided with mends wind interface 6, mends wind interface 6 one ends and communicates with described secondary air channel 3; One end is connected with blast apparatus, for secondary air channel 3 provides pressure-air.
Fixed grate incinerator, structural representation are seen Fig. 1 and Fig. 2; Comprise the body of heater 7 and water-cooled grate 5 processed by refractory material, described water-cooled grate 5 passes across the body of heater middle and lower part, and its delivery port is higher than water inlet, and the angle of fire grate plane and horizontal plane is 5 °.Fire grate has certain inclination, and the aqueous vapor that helps in the water-cooled grate 5 is discharged, and prevents because bubble causes the local pressure increase that fire grate is broken owing to can not in time discharging.
The water-cooled grate caliber is 89mm, and the outer wall spacing of adjacent furnace grate tube is 100mm.
Described furnace body wall 2 and furnace bottom evenly gather high pressure secondary air channel 3 are set, and wherein feed pressure-air, and the pressure-air flow velocity is 30～100m/s.
Described body of heater 7 tops are provided with dog-house, and body of heater 7 bottoms are provided with twice ashpit 4, lay respectively at the both sides up and down of water-cooled grate 5; Bottom of furnace body is provided with mends wind interface 6; Mend wind interface 6 one ends and communicate with described secondary air channel 3, an end is connected with blast apparatus, for secondary air channel 3 provides pressure-air.
The present invention does not describe part in detail, is the state of the art.
Embodiment recited above describes preferred implementation of the present invention; Be not that design of the present invention and scope are limited; Do not breaking away under the design concept prerequisite of the present invention; Various modification and improvement that those skilled in the art make technical scheme of the present invention all should fall into protection scope of the present invention, and the technology contents that the present invention asks for protection all is documented in claims.
Claims (5)
1. the fixed grate incinerator is characterized in that comprising body of heater (7) and the water-cooled grate (5) processed by refractory material, and described water-cooled grate (5) passes across the body of heater middle and lower part, and its delivery port is higher than water inlet, and the angle of fire grate plane and horizontal plane is 3 °～5 °.
2. fixed grate incinerator according to claim 1 is characterized in that described water-cooled grate caliber is 50～108mm, and the outer wall spacing of adjacent furnace grate tube is 60～120mm.
3. fixed grate incinerator according to claim 1 is characterized in that the evenly densely covered high pressure secondary air channel (3) that is provided with in described furnace body wall (2) and fire grate bottom.
4. fixed grate incinerator according to claim 3 is characterized in that described upper of furnace body is provided with dog-house (1), and bottom of furnace body one side is provided with mends wind interface (6), mends wind interface (6) one ends and is connected with blast apparatus, and an end communicates with described secondary air channel (3).
5. fixed grate incinerator according to claim 2 is characterized in that body of heater (7) bottom is provided with twice ashpit (4), lays respectively at the both sides up and down of fire grate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100741556A CN102705829A (en) | 2011-03-28 | 2011-03-28 | Fixed grate incinerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100741556A CN102705829A (en) | 2011-03-28 | 2011-03-28 | Fixed grate incinerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102705829A true CN102705829A (en) | 2012-10-03 |
Family
ID=46898799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100741556A Pending CN102705829A (en) | 2011-03-28 | 2011-03-28 | Fixed grate incinerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102705829A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02259325A (en) * | 1989-03-30 | 1990-10-22 | Babu Hitachi Eng Service Kk | Waste ignition device having boiler |
| CN2775494Y (en) * | 2005-03-08 | 2006-04-26 | 辽宁藤井环保设备制造有限公司 | Reverse direction continuous incinerator |
| CN201462863U (en) * | 2009-06-30 | 2010-05-12 | 乐山乐通锅炉有限公司 | Water-cooled grate for vertical coal-fired boiler |
| CN201954557U (en) * | 2011-03-28 | 2011-08-31 | 江苏大信环境科技有限公司 | Incinerator with fixed grate |
-
2011
- 2011-03-28 CN CN2011100741556A patent/CN102705829A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02259325A (en) * | 1989-03-30 | 1990-10-22 | Babu Hitachi Eng Service Kk | Waste ignition device having boiler |
| CN2775494Y (en) * | 2005-03-08 | 2006-04-26 | 辽宁藤井环保设备制造有限公司 | Reverse direction continuous incinerator |
| CN201462863U (en) * | 2009-06-30 | 2010-05-12 | 乐山乐通锅炉有限公司 | Water-cooled grate for vertical coal-fired boiler |
| CN201954557U (en) * | 2011-03-28 | 2011-08-31 | 江苏大信环境科技有限公司 | Incinerator with fixed grate |
Non-Patent Citations (1)
| Title |
|---|
| 贺永德: "《现代煤化工技术手册》", 31 March 2004 * |
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Application publication date: 20121003 |