CN201875680U - Boiler burning refuse derived fuels, waste plastics and waste wood - Google Patents
Boiler burning refuse derived fuels, waste plastics and waste wood Download PDFInfo
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- CN201875680U CN201875680U CN2010202081000U CN201020208100U CN201875680U CN 201875680 U CN201875680 U CN 201875680U CN 2010202081000 U CN2010202081000 U CN 2010202081000U CN 201020208100 U CN201020208100 U CN 201020208100U CN 201875680 U CN201875680 U CN 201875680U
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- waste wood
- derivatived fuel
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Abstract
The utility model discloses a boiler burning refuse derived fuels, waste plastics and waste wood, mainly comprising a hearth, and a combustion chamber, a superheater chamber and a tail flue sequentially connected behind the hearth, wherein a drum and a reverse chain grate are arranged above and below the hearth respectively; a slag and ash discharging device is arranged below the reverse chain grate; a waste wood spraying device and a refuse derived fuel (RDF) and waste plastic spraying device communicated with the inside of the hearth are arranged on the front wall at the lower part of the hearth; and the waste wood spraying device is positioned below the RDF and waste plastic spraying device. The boiler has the social effect of saving energy and reducing environment pollution and also has good economic effect by using the steam generated by burning the RDF, the waste plastic and the waste wood in the boiler for power generation and steam supply.
Description
Technical field
The utility model belongs to thermal power and field of environment protection, specifically is meant a kind of boiler that uses garbage derivatived fuel RDF, waste plastics RPF and waste wood.
Background technology
When self-contained thermoelectric plant, industrial production, need to use the steam of boiler generation, the normally used fuel of boiler is fossil fuel.Fossil fuel are non-renewable primary energy, owing to be becoming tight primary energy supply day, price is constantly soaring, has become the significant problem of serious restriction national economy sustainable development.
For the shortage of tackling primary energy with develop the economy, improve the people's livelihood, the problem that the energy is had more demands, except strengthening saving energy and reduce the cost, improve the utilization rate of primary energy, also should actively make great efforts to seek new forms of energy, this has become the only way of various countries' energy strategy development.
Garbage derivatived fuel RDF is the fuel of being made by the municipal refuse discarded object, and waste plastics RPF, waste wood are industrial discarded objects, also is the valuable energy.If abandon as rubbish, not only waste resource, also pollute the environment.But, because garbage derivatived fuel RDF, waste plastics RPF ash fusion point is low, fugitive constituent is high, the characteristic of easy bonding, when therefore utilizing existing boiler to come combustion refuse derivatived fuel RDF, waste plastics RPF, easily coking on heating surface, dust stratification, cause boiler normally not move, the fault rate height, even cause security incident.
The utility model content
The purpose of this utility model is in order to overcome the shortcoming and defect that prior art exists, and provide a kind of boiler that uses garbage derivatived fuel, waste plastics and waste wood, utilize garbage derivatived fuel RDF, waste plastics RPF and waste wood in boiler, to burn, the steam that produces is used for generating and steam supply, have the social benefit of energy savings, minimizing environmental pollution, good economic benefits is also arranged.
For achieving the above object, the technical solution of the utility model is to use garbage derivatived fuel, the boiler of waste plastics and waste wood, mainly include burner hearth, be connected in the burning chamber behind the burner hearth successively, superheater chamber and back-end ductwork, drum is installed in the top of described burner hearth, the lower disposed reversing traveling-grate stoker of described burner hearth, the chain fire-gate below of described reversing is installed and is slagged tap and ash discharge equipment, the described waste wood that communicates with burner hearth inside sow grass seeds by duster device and the garbage derivatived fuel RDF of on the front wall of lower furnace portion, being equipped with, the waste plastics RPF device of sowing grass seeds by duster, and this waste wood device of sowing grass seeds by duster is positioned at garbage derivatived fuel RDF, the sow grass seeds by duster arranged beneath of device of waste plastics RPF.
Be furnished with face arch above the reversing traveling-grate stoker relatively on the front wall that further setting is described burner hearth, and put overfire air port at the back wall paper of face arch, burner hearth.
Further being provided with is at indoor installation high temperature superheater of superheater and low temperature superheater, and economizer and air preheater are installed in back-end ductwork.
On the middle part side wall that further setting is described burner hearth oil burner is installed.
Further being provided with is that described burner hearth is installed on the steelframe, and this steelframe is that the platform staircase is installed.
Further setting is the suitable row layout of pipe row employing of high temperature superheater and low temperature superheater, economizer and air preheater.
Further be provided with is that high temperature superheater adopts following current to arrange.
Further being provided with is that air preheater adopts horizontal layout.
Further be provided with is that the fire grate segment material adopts the corrosion-and high-temp-resistant alloy cast steel in the reversing traveling-grate stoker.
Advantage of the present utility model has:
1, at garbage derivatived fuel RDF, waste plastics RPF ash fusion point is low, the fugitive constituent height, the characteristic of easy bonding, use garbage derivatived fuel RDF, the boiler of waste plastics RPF and waste wood has adopted garbage derivatived fuel RDF, waste plastics RPF the sow grass seeds by duster design concept of device combination of device and waste wood of sowing grass seeds by duster, the waste wood that is difficult for coking is shed on the chain fire-gate grate surface of reversing, on the waste wood layer, shed garbage derivatived fuel RDF and waste plastics RPF again, because the waste wood layer is with garbage derivatived fuel RDF and waste plastics RPF and fire grate isolation, not only can reach combustion refuse derivatived fuel RDF, the purpose of waste plastics RPF and waste wood, and prevented combustion product coking on grate surface of garbage derivatived fuel RDF and waste plastics RPF effectively, in addition, garbage derivatived fuel RDF, waste plastics RPF and waste wood use the device of sowing grass seeds by duster to spray into burner hearth, in the process of sowing grass seeds by duster, part fines begins suspension combustion, bulky grain is fallen on the fire grate and is burnt away, combustion heat intensity height.
2, above fire grate, arrange suitable face arch, and arrange secondary wind at face arch, wall place, back.Burner hearth, face arch and the secondary air system of reversing traveling-grate stoker, fire grate top have been formed complete combustion system, can make garbage derivatived fuel RDF, waste plastics RPF and waste wood completing combustion, fly ash combustible material reduces, and the flying dust amount in the flue gas also reduces, and has very high efficiency of combustion.
3, flue gas adopts four backhauls to flow to, and helps increasing flue gas flow, and fully cooled flue gas prevents to absorb heat because of coking influences boiler.Flue gas is through after the burning chamber, and the temperature that enters the superheater chamber is lower than ash fusion point, can avoid coking on superheater and later heating surface.
4, superheater, economizer, air preheat organ pipe row adopt along row and arrange, are convenient to deashing.
5, high temperature superheater adopts following current to arrange, can prevent high temperature corrosion effectively.
6, all arrange soot blower at each heating surface place, can in time remove coking and dust stratification on the heating surface, do not influence the heat transfer of each heating surface.
7, air preheater adopt horizontal be furnished with to be beneficial to prevent cold end corrosion.
8, lay the castable refractory thermal insulation in the burner hearth and be in the condition of high temperature, and stop the enough time, help removing the harmful substance in the flue gas to keep flue gas.
9, oil burner improves fire box temperature when starting boiler, produces public hazards when preventing boiler startup.
10, the fire grate segment material adopts corrosion-and high-temp-resistant alloy cast steel, long service life in the reversing traveling-grate stoker.
Below in conjunction with specification drawings and specific embodiments the utility model is done further introduction.
Description of drawings
Fig. 1 the utility model specific embodiment structural representation;
Among the figure: 1 is drum, and 2 is burner hearth, and 3 is steelframe and platform staircase, 4 is oil burner, and 5 is economizer, and 6 are the waste wood device of sowing grass seeds by duster, 7 are garbage derivatived fuel RDF, the waste plastics RPF device of sowing grass seeds by duster, and 8 is overfire air port, and 9 is air preheater, 10 are the reversing traveling-grate stoker, and 11 for slagging tap and ash discharge equipment, and 12 is burning chamber, 13 is the superheater chamber, and 14 is back-end ductwork, and 15 is high temperature superheater, 16 is low temperature superheater, and 17 is soot blower, and 18 is face arch.
The specific embodiment
Below by embodiment the utility model is carried out concrete description; only be used for the utility model is further specified; can not be interpreted as the qualification to the utility model protection domain, the technician in this field can make some nonessential improvement and adjustment to the utility model according to the content of above-mentioned utility model.
As shown in Figure 1, burner hearth 2 is installed on the steelframe, drum 1 is installed above burner hearth 2, lower disposed reversing traveling-grate stoker 10 at burner hearth 2, waste wood sow grass seeds by duster device 6 and garbage derivatived fuel RDF are installed on the front wall of burner hearth 2 bottoms, the waste plastics RPF device 7 of sowing grass seeds by duster, and this waste wood device 6 of sowing grass seeds by duster is positioned at garbage derivatived fuel RDF, the sow grass seeds by duster arranged beneath of device 7 of waste plastics RPF, oil burner 4 is installed on the side wall at burner hearth 2 middle parts, behind burner hearth 2, set gradually burning chamber 12, superheater chamber 13 and back-end ductwork 14, installation is slagged tap and ash discharge equipment 11 below reversing traveling-grate stoker 10.Mounting platform staircase 3 on steelframe.High temperature superheater 15 and low temperature superheater 16 are installed in superheater chamber 13.Economizer 5 and air preheater 9 are set in the back-end ductwork 14.According to generating or the required steam parameter situation of steam supply, high temperature superheater 15 and low temperature superheater 16 are installed in superheater chamber 13.In burner hearth 2 lower disposed face arch 18, in addition, at burner hearth 2 lower disposed overfire air ports 8.
As shown in Figure 1, the utility model boiler is four return structures, be garbage derivatived fuel RDF, waste plastics RPF and waste wood after burner hearth 2 internal combustion, the flue gas of generation flow through successively burner hearth 2, burning chamber 12, superheater chamber 13 and back-end ductwork 14 form four backhauls and flow to.Flue gas is four backhauls and flows in boiler, i.e. flow through successively burner hearth 2, burning chamber 12, superheater chamber 13 and back-end ductwork 14 of the flue gas that produces in the burner hearth internal combustion of garbage derivatived fuel RDF, waste plastics RPF and waste wood.
The boiler that uses garbage derivatived fuel RDF, waste plastics RPF and waste wood comprises high temperature superheater 15 and low temperature superheater 16.When the parameter of steam is medium temperature and medium pressure, need to arrange high temperature superheater 15 and low temperature superheater 16; And when the parameter of steam is low pressure, only need to arrange low temperature superheater 16; Saturated stove does not need to arrange superheater.Steelframe in steelframe and the platform staircase 3 is used to bear the boiler overall weight, and platform staircase 31 is used for boiler attendance, maintenance.
Use garbage derivatived fuel RDF, the boiler of waste plastics RPF and waste wood has adopted garbage derivatived fuel RDF, waste plastics RPF the sow grass seeds by duster design concept of device combination of device and waste wood of sowing grass seeds by duster, the waste wood that is difficult for coking is shed on the grate surface of reversing traveling-grate stoker 10, on the waste wood layer, shed garbage derivatived fuel RDF and waste plastics RPF again, because the waste wood layer is with garbage derivatived fuel RDF and waste plastics RPF and fire grate isolation, not only can reach combustion refuse derivatived fuel RDF, the purpose of waste plastics RPF and waste wood, and the combustion product that has prevented garbage derivatived fuel RDF and waste plastics RPF effectively coking on the grate surface of reversing traveling-grate stoker 10.Garbage derivatived fuel RDF, waste plastics RPF and waste wood use the device of sowing grass seeds by duster to spray into burner hearth, and in the process of sowing grass seeds by duster, a part of fines begins suspension combustion, and bulky grain is fallen on the fire grate and burnt away, combustion heat intensity height.
Flue gas is four backhauls and flows to.When combustion refuse derivatived fuel RDF, waste plastics RPF, because of the ash fusion point of garbage derivatived fuel RDF, waste plastics RPF is low, easily coking on heating surface, dust stratification.Adopt flue gas four backhauls to flow to, help arranging the heating surface of the difficult formation coking of special construction.Simultaneously, in the flue-gas temperature scope of easily coking, do not arrange heating surface, in being difficult for the flue-gas temperature scope of coking, arrange heating surface.
The pipe row of high temperature superheater 15, low temperature superheater 16, economizer 5, air preheater 9 adopts along row and arranges, therefore the space between pipe row is bigger, is convenient to deashing.
High temperature superheater 15 adopts following current to arrange that tube wall temperature is lower, can prevent high temperature corrosion effectively.
All arrange soot blower 17 at each heating surface place, can in time remove coking and dust stratification on the heating surface, do not influence the heat transfer of each heating surface.
Air preheater 9 adopts horizontal layout, helps preventing cold end corrosion.
Lay the castable refractory thermal insulation in the burner hearth and be in the condition of high temperature, and stop the enough time, help removing the harmful substance in the flue gas to keep flue gas.
Oil burner 4 improves burner hearth 2 temperature when starting boiler, produce public hazards when preventing boiler startup.
The fire grate segment material adopts corrosion-and high-temp-resistant alloy cast steel, long service life in the reversing traveling-grate stoker 10.
Claims (9)
1. one kind uses garbage derivatived fuel, the boiler of waste plastics and waste wood, mainly include burner hearth, be connected in the burning chamber behind the burner hearth successively, superheater chamber and back-end ductwork, drum is installed in the top of described burner hearth, the lower disposed reversing traveling-grate stoker of described burner hearth, the chain fire-gate below of described reversing is installed and is slagged tap and ash discharge equipment, it is characterized in that: the described waste wood that communicates with burner hearth inside sow grass seeds by duster device and the garbage derivatived fuel RDF of on the front wall of lower furnace portion, being equipped with, the waste plastics RPF device of sowing grass seeds by duster, and this waste wood device of sowing grass seeds by duster is positioned at garbage derivatived fuel RDF, the sow grass seeds by duster arranged beneath of device of waste plastics RPF.
2. a kind of boiler that uses garbage derivatived fuel, waste plastics and waste wood according to claim 1 is characterized in that: be furnished with face arch above the reversing traveling-grate stoker relatively on the front wall of described burner hearth, and put overfire air port at the back wall paper of face arch, burner hearth.
3. a kind of boiler that uses garbage derivatived fuel, waste plastics and waste wood according to claim 1 and 2 is characterized in that: at indoor installation high temperature superheater of superheater and low temperature superheater, economizer and air preheater are installed in back-end ductwork.
4. a kind of boiler that uses garbage derivatived fuel, waste plastics and waste wood according to claim 3 is characterized in that: on the middle part side wall of described burner hearth oil burner is installed.
5. a kind of boiler that uses garbage derivatived fuel, waste plastics and waste wood according to claim 4, it is characterized in that: described burner hearth is installed on the steelframe, and this steelframe is that the platform staircase is installed.
6. a kind of boiler that uses garbage derivatived fuel, waste plastics and waste wood according to claim 5 is characterized in that: the pipe row of high temperature superheater and low temperature superheater, economizer and air preheater adopts along row and arranges.
7. a kind of boiler that uses garbage derivatived fuel, waste plastics and waste wood according to claim 6 is characterized in that: high temperature superheater adopts following current to arrange.
8. the boiler that uses garbage derivatived fuel, waste plastics and waste wood according to claim 7 is characterized in that: air preheater adopts horizontal layout.
9. the boiler that uses garbage derivatived fuel, waste plastics and waste wood according to claim 8 is characterized in that: the fire grate segment material adopts the corrosion-and high-temp-resistant alloy cast steel in the described reversing traveling-grate stoker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202081000U CN201875680U (en) | 2010-05-26 | 2010-05-26 | Boiler burning refuse derived fuels, waste plastics and waste wood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202081000U CN201875680U (en) | 2010-05-26 | 2010-05-26 | Boiler burning refuse derived fuels, waste plastics and waste wood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201875680U true CN201875680U (en) | 2011-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202081000U Expired - Lifetime CN201875680U (en) | 2010-05-26 | 2010-05-26 | Boiler burning refuse derived fuels, waste plastics and waste wood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201875680U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852422A (en) * | 2010-05-26 | 2010-10-06 | 伟明环保设备有限公司 | Boiler for derived fuel RDF, waste plastics RPF and waste wood of combustion of refuses |
| CN104359099A (en) * | 2014-10-09 | 2015-02-18 | 杭州燃油锅炉有限公司 | Three-return-stroke powder steam boiler |
| CN104359098A (en) * | 2014-10-09 | 2015-02-18 | 杭州燃油锅炉有限公司 | Three-return-stroke powder heat conduction oil boiler |
| CN105674304A (en) * | 2016-03-22 | 2016-06-15 | 浙江伟明环保股份有限公司 | Garden waste incineration boiler |
-
2010
- 2010-05-26 CN CN2010202081000U patent/CN201875680U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852422A (en) * | 2010-05-26 | 2010-10-06 | 伟明环保设备有限公司 | Boiler for derived fuel RDF, waste plastics RPF and waste wood of combustion of refuses |
| CN104359099A (en) * | 2014-10-09 | 2015-02-18 | 杭州燃油锅炉有限公司 | Three-return-stroke powder steam boiler |
| CN104359098A (en) * | 2014-10-09 | 2015-02-18 | 杭州燃油锅炉有限公司 | Three-return-stroke powder heat conduction oil boiler |
| CN105674304A (en) * | 2016-03-22 | 2016-06-15 | 浙江伟明环保股份有限公司 | Garden waste incineration boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110622 Effective date of abandoning: 20120118 |