CN201083389Y - Solid waste combustion system - Google Patents
Solid waste combustion system Download PDFInfo
- Publication number
- CN201083389Y CN201083389Y CNU2007201555718U CN200720155571U CN201083389Y CN 201083389 Y CN201083389 Y CN 201083389Y CN U2007201555718 U CNU2007201555718 U CN U2007201555718U CN 200720155571 U CN200720155571 U CN 200720155571U CN 201083389 Y CN201083389 Y CN 201083389Y
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- solid waste
- row
- oxygenating
- combustion chamber
- burner
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Abstract
The utility model discloses a solid waste burning system, which comprises a main firebox, an ignition burner, a secondary burner, a high-pressure oxygen supplementation blower, a secondary firebox, a water-cooled dust collector, a high-temperature fire-resisting flue, post treatment equipment, an exhaust blower and a chimney, wherein a heat exchanger for recycling and returning heat energy to the secondary firebox and the main firebox is arranged between the high-temperature fire-resisting flue and the post treatment equipment. In the solid waste burning system, the middle part of the secondary firebox is provided with oxygen supplementation nozzles in rows along the axial direction. Through adopting the solid waste burning system, the contact area between unburned residual organic carbon granules in a primary firebox and oxygen is increased, and the carbon granules rapidly have reactions with oxidation and burn; the whirlpool of the organic carbon granules in the secondary burner is prolonged; also, the retention time of the organic matter in the burner is greatly prolonged, thereby burning fully and thoroughly, effectively reducing the energy consumption in operation and the processing load of the subsequent equipment; the whole set of the burner has a compact structure.
Description
Technical field
The utility model relates to the environmental protection field, specifically, relates to a kind of solid waste burning treatment system.
Background technology
Traditional solid waste incinerator comprises parts such as reinforced bucket elevator, main chamber, combustor, secondary combustion chamber, fuel lance, water-cooled cyclone, high-temperature flame-proof formula flue, equipment for after-treatment, exhaust blower, chimney.Its technological process is solid waste to be promoted to charge door by the machine of carrying that feeds in raw material enter the combustion chamber, the ignition combustion device, combustion-supportingly blast air and realize by high pressure oxygenating blower fan, feed hot blast in the combustion chamber, the flue gas that the burning back produces enters secondary combustion chamber, secondary combustion chamber is lighted fuel lance, and the combustion-supporting of fuel lance also realized by blasting air; After combustion gas is burned, enter the water-cooled dust arrester to collect not clean-burning solid residue in the flue gas, flue gas by acid separator, is used in the alkali and the acid in the tail gas at this along with high-temperature flame-proof formula pipeline enters in the equipment for after-treatment, enters atmosphere by chimney then.But, solid (fixed fire grate type, active type) incinerator in the past, after once burning, because a chamber ignition temperature is low, for example peroxide burns, so a part of organic matter must enter secondary chamber and burn, make the temperature of second-time burning need remain on that pyrolysis just can reach free from extraneous odour more than 1100 ℃, ordorless, smokeless complete combustion effect.After then remaining waste gas being entered vent gas treatment, the gas up to standard of allow compliance with emission standards is entered to atmosphere through chimney.The ashes of burning back generation by artificial taking-up, screening, shift and bury.
Usually, because the oxygen content in the main chamber is lower than the hypoxemia demand of completing combustion, so ignition temperature is not high, and regularly the fixed bed of horizontal translocation (half siege) admittedly is also little to the stirring capacity of rubbish forward, cause solid waste to be difficult to complete after-flame, phosphorus content is higher in the residual ash.And the recent module type incinerator that develops also has two combustion chambers, all needs system's design of superaltitude tolerance.Usually, in order to reduce dust content in the exhaust, the excess air of main chamber maintains about 20%～30% (recruitment of the air capacity that Actual combustion needs), the indoor excess air of second-time burning is 100%～140% (oxygen proportion that the actual waste burning needs), to guarantee gas completing combustion.Temperature in the main chamber is controlled between 900 ℃ in addition, between about 1100 ℃ of the temperature of secondary combustion chamber.
Requirement in view of above-mentioned air capacity and temperature, obviously present solid waste combustion system can not be satisfied the demand, therefore be necessary to redesign a kind of solid waste combustion system, so that indoor air capacity and the temperature of main chamber and second-time burning can both reach new requirement, and make sufficient combustion, harmful components in the tail gas reduce, and reduce environmental pollution, have further improved the efficient of system.
Summary of the invention
One of the purpose of this utility model provides a kind of solid waste combustion system, and this system can make and main chamber can both reach corresponding requirement with air capacity secondary combustion chamber and temperature, makes burning more abundant.
To achieve the above object of the invention, the utility model adopts following technical scheme:
A kind of solid waste combustion system comprises:
Main chamber, start-up burner, secondary burner, high pressure oxygenating blower fan, secondary combustion chamber, water-cooled dust arrester, high-temperature flame-proof formula flue, equipment for after-treatment, exhaust blower and chimney, wherein, between high-temperature flame-proof formula pipeline and equipment for after-treatment, be provided with heat recovery is turned back to heat exchanger in secondary combustion chamber and the main chamber.
In the above-mentioned solid waste combustion system, the middle part of secondary combustion chamber is provided with the oxygenating nozzle vertically in a row, preferred 5-11 row, more preferably 7-9 arranges, the along the circumferential direction uniform oxygenating nozzle of every row, the preferred 6-18 of its quantity, more preferably 10-12, most preferably 12, this quantity can increase according to the treating capacity of equipment or reduce; Be provided with the combustion chamber circumferential wall portion and the conducting of oxygenating nozzle of oxygenating nozzle, and be the hollow-core construction of sealing up and down; The second-time burning chamber outer wall is provided with the air inlet with combustion chamber open circles inner peripheral portion conducting.
Wherein, oxygenating nozzle in a row preferably is symmetrically distributed along the medium line of secondary combustion chamber.
The utility model turns back to heat exchanger in secondary combustion chamber and the main chamber by being provided with heat recovery between high-temperature flame-proof formula pipeline and equipment for after-treatment, heat recovery is arrived in secondary combustion chamber and the main chamber, make burning more abundant, simultaneously also save the energy, improved efficient.Further secondary combustion chamber is improved,, the contact area of indoor unburnt residual organic carbon particle of primary combustion and oxygen is increased, rapidly reaction is burned in carbon granule generation oxidation at the indoor oxygenating nozzle that is provided with.The eddy current of organic carbon particle in after-burning stove prolonged, and the time of staying of organic matter in stove also prolongs greatly, and therefore burning fully, thoroughly reduces simultaneously operation energy consumption effectively, reduces follow-up equipment processing load, a whole set of furnace construction compactness.
Description of drawings
Fig. 1 is the schematic diagram of solid waste incineration systems in the prior art;
Fig. 2 is the schematic diagram of solid waste combustion system of the present utility model;
Fig. 3 is the structural representation of secondary combustion chamber of the present utility model;
Fig. 4 is the vertical view of Fig. 3.
Wherein, 1, secondary combustion chamber chamber body; 2, oxygenating nozzle; 3, combustion chamber circumferential wall portion; 4, air inlet;
11, oil groove; 12, secondary burner; 13, secondary combustion chamber; 14, hot blast reclaims; 15, high-temperature heat-resistance formula flue; 16, heat exchanger; 17, oxygenating blower fan; 18, water-cooled cyclone; 19, ash hole; 20, chamber furnace body; 21, start-up burner; 22, subsequent processing device; 23, exhaust blower; 24, free-standing chimney; 25, detect mouth; 26, high pressure oxygenating blower fan.
The specific embodiment
Below in conjunction with embodiment the utility model is elaborated, it only is an example, is not to be intended to protection domain of the present utility model is imposed any restrictions.
Hereinafter with reference to Fig. 1, Fig. 1 shows the schematic diagram of solid waste incineration systems in the prior art; Solid waste incineration systems comprises parts such as main chamber, combustor, secondary combustion chamber, fuel lance, water-cooled cyclone, high-temperature flame-proof formula flue, equipment for after-treatment, exhaust blower, chimney.But these parts are not owing to be provided with heat exchanger between high-temperature flame-proof formula flue and equipment for after-treatment, with heat recovery in secondary combustion chamber and main chamber, thereby it is insufficient to cause burning, inefficiency.
Fig. 2 has provided the schematic diagram of solid waste incineration systems of the present utility model.As shown in FIG., this system comprises main chamber, start-up burner, secondary burner, high pressure oxygenating blower fan, secondary combustion chamber, water-cooled dust arrester, high-temperature flame-proof formula flue, equipment for after-treatment, exhaust blower and chimney, wherein, between high-temperature flame-proof formula pipeline and equipment for after-treatment, be provided with heat recovery to the heat exchanger that turns back in secondary combustion chamber and the main chamber.The setting of heat exchanger can make burning more abundant with the ducted heat recovery of high-temperature flame-proof formula in secondary combustion chamber and main chamber, has also saved the energy simultaneously, has improved efficient.Further, the utility model improves the structure of secondary combustion chamber, is provided with oxygenating nozzle in a row on chamber wall.As shown in Figure 3 and Figure 4, the oxygenating nozzle 2 that the (not shown) position, Central Line of secondary combustion chamber chamber body 1 has distributed in a row symmetrically, row's number is preferably 7 rows, can certainly on suitable secondary combustion chamber position oxygenating nozzle 2 be set according to actual needs.Every row's oxygenating nozzle 2 is uniform around circumferencial direction, and its quantity is 12, is provided with the combustion chamber circumferential wall portion 3 and 2 conductings of oxygenating nozzle of oxygenating nozzle, and is the hollow-core construction of sealing up and down; The second-time burning chamber outer wall is provided with the air inlet 4 with combustion chamber open circles inner peripheral portion conducting.Be recovered to secondary combustion chamber from the heat of high-temperature heat-resistance formula flue by heat exchanger, its hot-air enters in the combustion chamber circumferential wall portion 3 by air inlet 4, because combustion chamber open circles inner peripheral portion 3 is sealed up and down, therefore to spray into second-time burning by oxygenating nozzle 2 indoor for hot-air, makes burning more abundant.By said structure, the excess air of main chamber maintains about 20%～30%, and the indoor excess air of second-time burning is 100%～140%, can guarantee gas completing combustion.Temperature in the main chamber is controlled between 900 ℃ in addition, between about 1100 ℃ of the temperature of secondary combustion chamber, efficiency of combustion is improved greatly.
It should be noted that; above the technical solution of the utility model is had been described in detail in conjunction with embodiment; but those skilled in the art will find apparent that; on the technical solutions of the utility model basis; can carry out variations and modifications to the technical solution of the utility model, but not break away from the scope that the utility model claims required for protection are summarized.
Claims (8)
1. solid waste combustion system, comprise: main chamber, start-up burner, secondary burner, high pressure oxygenating blower fan, secondary combustion chamber, water-cooled dust arrester, high-temperature flame-proof formula flue, equipment for after-treatment, exhaust blower and chimney, wherein, between high-temperature flame-proof formula pipeline and equipment for after-treatment, be provided with heat recovery is turned back to heat exchanger in secondary combustion chamber and the main chamber.
2. solid waste combustion system as claimed in claim 1 is characterized in that, the middle part of described secondary combustion chamber is provided with the oxygenating nozzle vertically in a row, and 5-11 row is set altogether, the along the circumferential direction uniform oxygenating nozzle of every row, and its quantity is 6-18.
3. solid waste combustion system as claimed in claim 2 is characterized in that, is provided with the combustion chamber circumferential wall portion and the conducting of oxygenating nozzle of oxygenating nozzle, and is the hollow-core construction of sealing up and down; Described second-time burning chamber outer wall is provided with the air inlet with combustion chamber open circles inner peripheral portion conducting.
4. solid waste combustion system as claimed in claim 2 is characterized in that, described oxygenating nozzle is set to 7-9 row.
5. solid waste combustion system as claimed in claim 2 is characterized in that, the quantity of along the circumferential direction uniform every row's oxygenating nozzle is 6-18.
6. solid waste combustion system as claimed in claim 5 is characterized in that, the quantity of along the circumferential direction uniform every row's oxygenating nozzle is 10-12.
7. solid waste combustion system as claimed in claim 6 is characterized in that, the quantity of along the circumferential direction uniform every row's oxygenating nozzle is 12.
8. solid waste combustion system as claimed in claim 2 is characterized in that, oxygenating nozzle in a row is symmetrically distributed along the medium line of secondary combustion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201555718U CN201083389Y (en) | 2007-07-06 | 2007-07-06 | Solid waste combustion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201555718U CN201083389Y (en) | 2007-07-06 | 2007-07-06 | Solid waste combustion system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201083389Y true CN201083389Y (en) | 2008-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201555718U Expired - Fee Related CN201083389Y (en) | 2007-07-06 | 2007-07-06 | Solid waste combustion system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201083389Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105258131A (en) * | 2015-11-30 | 2016-01-20 | 朱肖州 | Environment-friendly efficient waste incinerator |
-
2007
- 2007-07-06 CN CNU2007201555718U patent/CN201083389Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105258131A (en) * | 2015-11-30 | 2016-01-20 | 朱肖州 | Environment-friendly efficient waste incinerator |
| CN105258131B (en) * | 2015-11-30 | 2017-12-01 | 朱肖州 | A kind of environment-friendly high-efficiency waste incinerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20080709 Termination date: 20140706 |
|
| EXPY | Termination of patent right or utility model |