CN202419674U - Fire grate boiler for performing mixed combustion of sludge and household garbage - Google Patents
Fire grate boiler for performing mixed combustion of sludge and household garbage Download PDFInfo
- Publication number
- CN202419674U CN202419674U CN2012200207959U CN201220020795U CN202419674U CN 202419674 U CN202419674 U CN 202419674U CN 2012200207959 U CN2012200207959 U CN 2012200207959U CN 201220020795 U CN201220020795 U CN 201220020795U CN 202419674 U CN202419674 U CN 202419674U
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- fire grate
- furnace chamber
- mud
- sludge
- household garbage
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Abstract
The utility model relates to a fire grate boiler for performing the mixed combustion of sludge and household garbage and generating steam for steam supply and power generation. According to the technical scheme, the fire grate boiler for performing the mixed combustion of sludge and household garbage is characterized in that a fire grate is a two-sectional reciprocating type fire grate; a horizontal flue and a tail flue are arranged behind a furnace chamber; the furnace chamber, the horizontal flue and the tail flue are arranged in an n shape; a feeding device is arranged on the front part of the furnace chamber and comprises a household garbage hopper and a sludge feeding opening; and the sludge feeding opening is formed on the rear wall of the household garbage hopper. By the technical scheme, the utility model aims to provide the fire grate boiler for performing the mixed combustion of the sludge and the household garbage.
Description
Technical field
The utility model relates to a kind of mud and domestic garbage mixing burning and produces the fire grate type boiler that steam is used for steam supply, generating.
Background technology
Mud is the product after the sewage disposal, is a kind of extremely complicated heterogeneous body of being made up of organic relic, bacterium thalline, inorganic particle, colloid etc.The key property of mud is that moisture content is high, and content of organics is high, degenerates smellyly easily, and particle is thinner, and proportion is less, is gluey liquid.Along with the raising of wastewater treatment rate, sludge quantity also constantly increases, and the treatment and disposal problem of mud becomes increasingly conspicuous.If drying sludge is handled back (moisture percentage in sewage sludge reduces by 50%); As boiler oil, send into the burning of fire grate type boiler and domestic garbage mixing, utilize the heat that burns to produce steam and be used for steam supply and generating; And utilize the flue gas processing device of refuse burning system to handle the tail gas that produces; So not only can turn waste into wealth energy savings, protection environment; Again good social benefit and considerable economic can be arranged.Fuel characteristic to mud and house refuse; Completely newly developed the fire grate type boiler of domestic first platform mud and domestic garbage mixing burning, the mud after the dried (moisture percentage in sewage sludge reduces by 50%) is acted as a fuel and delivers to fire grate type boiler, carried out mixed combustion with house refuse; Impel the active combustion of mud and house refuse with this; Guarantee that mixed fuel firing is abundant, the thermal efficiency is high, and boiler operatiopn is stable.
Summary of the invention
The purpose of the utility model is to provide the fire grate type boiler of a kind of mud and domestic garbage mixing burning.
Realize above-mentioned purpose, the utility model adopts following technical scheme, the fire grate type boiler of a kind of mud and domestic garbage mixing burning; Include steelframe, furnace chamber, drum, charging gear, fire grate and slag tap and ash discharge equipment, wherein furnace chamber is installed on the steelframe, and furnace chamber includes burner hearth, burning chamber and three flues; Drum is installed in the top of furnace chamber, and fire grate is arranged on the bottom of furnace chamber, slags tap to be arranged on the below of fire grate with ash discharge equipment; It is characterized in that: said fire grate is two sections reciprocating fire grates; Horizontal flue and back-end ductwork are set behind the said furnace chamber, and furnace chamber, horizontal flue and back-end ductwork become the Jiong type to arrange that materials device is assigned in said furnace chamber front portion; Charging gear includes house refuse hopper and mud dog-house, and said mud dog-house is arranged on the rear wall place of house refuse hopper.
The further setting of the utility model is: be provided with high temperature superheater, medium temperature overheater and low temperature superheater in the said horizontal flue; In the said back-end ductwork economizer is set; Said lower furnace portion and be positioned on the side wall of fire grate top auxiliary burner is installed; Mounting points ignition combustor on the back wall of lower furnace portion, is positioned at fire grate top and arranges face arch and rear arch said lower furnace portion, and in front and back arch place arranging multiplayer secondary wind respectively.
Further being provided with again of the utility model is: in said three flues evaporating heating surface is installed, evaporating heating surface adopts independently closed circuit.
Through adopting such scheme, the utlity model has following advantage:
1, mud is delivered to the mud dog-house at house refuse hopper rear wall place through conveyance conduit; Mud is evenly distributed on the interior house refuse bed of material of hopper; Mud is along with house refuse together gets on the fire grate; And remain and be positioned on the house refuse bed of material, therefore can guarantee stable drying and burn effect.Mud is through high temperature incineration, and harmful substance obtains sufficient oxidation Decomposition, reaches the target of innoxious, minimizing, resource.
2, to the fuel characteristic of the fuel characteristic of mud after the dried and house refuse low heat value, high moisture content, ash-rich, the special combustion apparatus that adopts two sections reciprocating fire grates is guaranteed that mud and house refuse are in time caught fire, smooth combustion, is fully burnt.Two sections combined reciprocating fire grates of this kind backstepping fire grate and forwards fire grate can make rubbish overturn effectively, stir; Has comparatively ideal burning condition; Can realize rubbish completing combustion, the house refuse of China without letter sorting, low heat value, high moisture content, ash-rich is specially adapted to burn.Mud the drying that under the radiation of red-hot flue gas, takes the lead in, catches fire, burns on the rubbish bed of material.
3, fuel combination burns on two sections reciprocating fire grates, the flue gas of generation flow through successively burner hearth, burning chamber, three flues, horizontal flue and back-end ductwork.Flue gas flow is long, and abundant cooled flue gas prevents because of coking influences the boiler heat absorption, flue gas through three flues after, the temperature that gets into horizontal flue has been lower than ash fusion point, can avoid coking on superheater surface.
4, arrange evaporating heating surface in three flues, make full use of space in three flues, shorten the length of horizontal flue effectively, and can make smoke distribution even, reduce the superheater input gas temperature simultaneously, avoid the superheater coking.Evaporating heating surface adopts independently closed circuit, and is safe.
5, in order to satisfy environmental requirement, suppress the generation of dioxin harmful substance, side wall is provided with auxiliary burner to burner hearth in its underpart, and wall is provided with start-up burner after lower furnace portion, promotes in the stove temperature when guaranteeing the boiler starting with this and keeps temperature in the stove.
6, according to the fuel characteristic of fuel combination low heat value, high moisture content; In order to accelerate igniting and promoting the mixing of gas in the burner hearth of fresh fuel; And tissue radiation and red-hot flue gas is mobile; Guarantee the rapidly evaporation and the vaporization of moisture content of fresh fuel, make fuel combination catch fire in time, burn, lower furnace portion, be positioned at face arch and rear arch that the fire grate top is laid with thermal insulation.
7, owing in the fuel combination a certain amount of fly ash particle is arranged, the arch place is furnished with the multilayer secondary wind in front and back, makes full use of high speed secondary wind jet leader tape and the effect that pushes flue gas; Strengthen the disturbance of flue gas, cause flue-gas swirl, the stroke of prolong smoke in stove, improve the degree of filling of gas stream in the stove; Fuel combination is fully mixed with air; Completing combustion, burn, guarantee that fly ash combustible material reduces in the burner hearth, and the needed oxygen of aftercombustion.
8, evaporating heating surface, sectionalized superheater, economizer are along row and arrange, are difficult for dust stratification.
9, each convection heating surface place all is provided with the shock-wave ash blowing device, can effectively remove dust stratification, guarantees safe operation of the boiler.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Fig. 1 always schemes for the utility model embodiment boiler;
Fig. 2 is the charging gear structure chart of the utility model embodiment;
Fig. 3 is the side view of Fig. 2.
The specific embodiment
As shown in the figure: 1 is two sections reciprocating fire grates, and 2 is burner hearth, and 3 is start-up burner, and 4 is auxiliary burner, and 5 is evaporating heating surface; 6 is high temperature superheater, and 7 is medium temperature overheater, and 8 is low temperature superheater, and 9 is economizer, and 10 for slagging tap and ash discharge equipment; 11 is burning chamber, and 12 is three flues, and 13 is horizontal flue, and 14 is back-end ductwork, and 15 is the shock-wave ash blowing device; 16 is face arch, and 17 is rear arch, and 18 is secondary wind, and 19 is charging gear; 20 is steelframe, and 21 is drum, and 191 is the house refuse hopper, and 192 is the mud dog-house.
Like Fig. 1-shown in Figure 3; The fire grate type boiler of a kind of mud and domestic garbage mixing burning; Include steelframe 20, furnace chamber, drum 21, charging gear 19, fire grate 1 and slag tap and ash discharge equipment 10; Said furnace chamber comprises burner hearth 2, burning chamber 11 and three flues 12, and furnace chamber, horizontal flue 13 and back-end ductwork 14 constitute Jiong type structure, and promptly furnace chamber, horizontal flue 13 and back-end ductwork 14 adopt the Jiong type to arrange.Slag tap with ash discharge equipment 10 be installed in two sections reciprocating fire grates 1 below, burner hearth 2 in its underpart side wall auxiliary burner 4 is installed, wall mounting points ignition combustor 3 behind its underpart, is positioned at two sections reciprocating fire grate 1 tops and arranges face arch 16 and rear arch 17 burner hearth 2 bottoms.Be furnished with secondary wind 18 at face arch 16 and rear arch 17 places.Set gradually burning chamber's 11, three flues 12 behind the burner hearth 2, horizontal flue 13 and back-end ductwork 14.In three flues 12 evaporating heating surface 5 is installed, evaporating heating surface 5 adopts independently closed circuit, and high temperature superheater 6, medium temperature overheater 7 and low temperature superheater 8 are installed in the horizontal flue 13.Economizer 9 is set in the back-end ductwork 14.All arrange shock-wave ash blowing device 15 at each heating surface place.
In the utility model embodiment; Said charging gear 19 includes house refuse hopper 191 and mud dog-house 192; Said mud dog-house 192 is arranged on the rear wall place of house refuse hopper 191, and mud is delivered to the mud dog-house 192 at house refuse hopper 191 rear wall places through conveyance conduit, and mud is evenly distributed in the hopper on the house refuse bed of material; Mud is along with house refuse together gets on the fire grate 1, and remains and be positioned on the house refuse bed of material.Mud and house refuse after burning on two sections reciprocating fire grates 1, the flue gas of generation flow through successively burner hearth 2, burning chamber 11, three flues 12, horizontal flue 13 and back-end ductwork 14, flue gas flow is long, fully cooled flue gas prevents to absorb heat because of coking influences boiler.
Claims (3)
1. the fire grate type boiler of mud and domestic garbage mixing burning includes steelframe, furnace chamber, drum, charging gear, fire grate and slags tap and ash discharge equipment, and wherein furnace chamber is installed on the steelframe; Furnace chamber includes burner hearth, burning chamber and three flues; Drum is installed in the top of furnace chamber, and fire grate is arranged on the bottom of furnace chamber, slags tap to be arranged on the below of fire grate with ash discharge equipment; It is characterized in that: said fire grate is two sections reciprocating fire grates; Horizontal flue and back-end ductwork are set behind the said furnace chamber, and furnace chamber, horizontal flue and back-end ductwork become the Jiong type to arrange that materials device is assigned in said furnace chamber front portion; Charging gear includes house refuse hopper and mud dog-house, and said mud dog-house is arranged on the rear wall place of house refuse hopper.
2. the fire grate type boiler of mud according to claim 1 and domestic garbage mixing burning; It is characterized in that: be provided with high temperature superheater, medium temperature overheater and low temperature superheater in the said horizontal flue; In the said back-end ductwork economizer is set; Said lower furnace portion and be positioned on the side wall of fire grate top auxiliary burner is installed; Mounting points ignition combustor on the back wall of lower furnace portion, is positioned at fire grate top and arranges face arch and rear arch said lower furnace portion, and in front and back arch place arranging multiplayer secondary wind respectively.
3. the fire grate type boiler of mud according to claim 2 and domestic garbage mixing burning, it is characterized in that: in said three flues evaporating heating surface is installed, evaporating heating surface adopts independently closed circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200207959U CN202419674U (en) | 2012-01-17 | 2012-01-17 | Fire grate boiler for performing mixed combustion of sludge and household garbage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200207959U CN202419674U (en) | 2012-01-17 | 2012-01-17 | Fire grate boiler for performing mixed combustion of sludge and household garbage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202419674U true CN202419674U (en) | 2012-09-05 |
Family
ID=46744433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200207959U Expired - Lifetime CN202419674U (en) | 2012-01-17 | 2012-01-17 | Fire grate boiler for performing mixed combustion of sludge and household garbage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202419674U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563668A (en) * | 2012-01-17 | 2012-07-11 | 伟明环保设备有限公司 | Sludge and domestic garbage mixed firing grate boiler |
| CN103471103A (en) * | 2013-09-12 | 2013-12-25 | 伟明环保设备有限公司 | Furnace for combined combustion of methane of garbage leachate and garbage |
-
2012
- 2012-01-17 CN CN2012200207959U patent/CN202419674U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563668A (en) * | 2012-01-17 | 2012-07-11 | 伟明环保设备有限公司 | Sludge and domestic garbage mixed firing grate boiler |
| CN103471103A (en) * | 2013-09-12 | 2013-12-25 | 伟明环保设备有限公司 | Furnace for combined combustion of methane of garbage leachate and garbage |
| CN103471103B (en) * | 2013-09-12 | 2015-11-25 | 伟明环保设备有限公司 | A kind of biogas of percolate and the boiler of rubbish mixed combustion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |