CN202955714U - Chained fire bed furnace wind force mixed feeding combustion device with front arch baffle - Google Patents
Chained fire bed furnace wind force mixed feeding combustion device with front arch baffle Download PDFInfo
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- CN202955714U CN202955714U CN 201220541669 CN201220541669U CN202955714U CN 202955714 U CN202955714 U CN 202955714U CN 201220541669 CN201220541669 CN 201220541669 CN 201220541669 U CN201220541669 U CN 201220541669U CN 202955714 U CN202955714 U CN 202955714U
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- nozzle assembly
- grate
- face arch
- mixed feeding
- jet
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Abstract
The utility model discloses a chained fire bed furnace wind force mixed feeding combustion device with a front arch baffle. The combustion device comprises a furnace cavity, a chained fire grate arranged under the furnace cavity, a material gate arranged on one side of the furnace cavity, a front wall, a front arch and a double-cavity material hopper. The double-cavity material hopper is of a double-cavity structure transversely separated by a nozzle assembly in the material hopper. A flow distribution plate with adjustable angle is arranged at the top end of the nozzle assembly, an air inlet of the nozzle assembly is arranged on the lateral wall of the double-cavity material hopper, a jet-flow flow adjusting door is arranged at the front of the air inlet, a group of flow guide arc plates are arranged at the back of the air inlet located in the nozzle assembly, a sewing type nozzle is arranged at the tail end of the nozzle assembly, a jet flow baffle piece is arranged at the back end of the sewing type nozzle, and a front arch baffle piece changing moving track of biomass fuel discharged from the double-cavity material hopper is arranged on the front arch. The chained fire bed furnace resolves the problem of high fly ash share in the prior front wall material spraying art, simultaneously improves fire grate fuel distribution, improves combustion efficiency, reduces furnace cavity slag-bonding, and reduces heated face abrasion.
Description
Technical field
The improvement of wind-force material spray technology when the utility model relates to a kind of burning-used biologic mass fuel, relate in particular to a kind of chain type grate stove wind-force mixed feeding burner stopped with face arch.
Background technology
For reproducible clean energy resource---the living beings such as cavings, stalk of directly burning at chain type grate stove, very low according to its calorific value, the characteristics that bulk density is extremely low, develop multiple technologies now, mainly contain following several.
Adopt the mode that chain-grate speed increases thickness of bed layer simultaneously of accelerating.But biomass burning, can cause a series of negative consequence like this, be mainly that chain-grate need to be born larger pulling force, the fire grate functional reliability descends; The security hidden danger that hopper has spontaneous combustion and fuel gas to leak; Living beings grate meeting Serious Slagging etc.
The high-order wind-force material spray of front wall.Though be improved than above-mentioned way, cause the significantly rising of converter fly ash share, the fire grate front end occurs very thin without empty fire grate or the bed of the bed of material, has reduced the time of staying of fuel on grate; The particles settling difficulty, efficiency of combustion descends, and Boiler Furnace slagging worsens, heating surface wear aggravation while using high ash biomass fuel (as rice husk).
The utility model content
The purpose of this utility model is in order to make up the deficiency of prior art, a kind of chain type grate stove wind-force mixed feeding burner stopped with face arch is provided, to solve the high problem of existing front wall material spray technology flying dust share, improved the fire grate fuel distribution simultaneously, improved efficiency of combustion, alleviated Boiler Furnace slagging and reduced heating surface wear; By the structure of jet block piece and face arch block piece, make biomass fuel become horizontal movement and move into high the throwing, then fall immediately, reduced flying dust share in flue gas.
The utility model is achieved through the following technical solutions:
A kind of chain type grate stove wind-force mixed feeding burner stopped with face arch, include burner hearth, the chain-grate of burner hearth below, the material gate of burner hearth one side, front wall and face arch and two-chamber hopper, it is characterized in that: described two-chamber hopper is the double cavity structure that the nozzle assembly in hopper laterally is separated into it, the top of described nozzle assembly is provided with the adjustable flow distribution plate of angle, the air inlet of described nozzle assembly is located on the sidewall of two-chamber hopper, and be provided with the jet flow adjustment doors before air inlet, be provided with one group of water conservancy diversion arc plate after being positioned at air inlet in described nozzle assembly, spacing between the baseplane of described nozzle assembly and the upper surface of chain-grate is skewed, the tail end of described nozzle assembly is provided with seam shape spout, the rear end of described seam shape spout is provided with the jet block piece, described face arch is provided with the face arch block piece that changes the biomass fuel movement locus after the discharging of two-chamber hopper.
The upper surface of described nozzle assembly baseplane and chain-grate has one 5
o～10
oThe angle that warps.
The architectural feature of described water conservancy diversion arc plate is that front end is parallel with the side incoming flow, and each distance between plates of front end is equal, and water conservancy diversion arc plate end arc transition turns a quarter bend, and each distance between plates after turning also equates.
Described seam shape width of jet direction is laterally arranged on grate surface, vertical with the chain-grate direction of motion; The height of described seam shape spout is 5～40 millimeters, and its bottom surface is apart from 50～120 millimeters of grate surfaces, and the jet direction that described seam shape spout forms is parallel to grate surface.
Described jet block piece is connected with the bottom surface case with the two sides of nozzle assembly.
Described jet block piece forms by two the heat-resisting steel sheet and plate that angle, radius of the radian be not less than 1/4 circular arc of 100 millimeters and is welded, or by two plane heat-resisting steel sheet and plates that form angle, perhaps only by a plane heat-resisting steel sheet and plate vertical welding, in the baseplane of nozzle assembly, formed, and heat-resisting steel sheet and plate is all wide with nozzle assembly.
The horizontal range of described jet block piece upper limb and face arch bottom is 100～300 millimeters.
Described face arch block piece is the short wall on one section block, or the baffle plate of a heat-resisting steel sheet and plate system, and its length direction is vertical with the chain-grate direction of motion, and its length and burner hearth are wide.
The Secondary Air exhaust duct that described face arch block piece is horizontal dress, its length and burner hearth are wide, axially have the air-out notch of interruption, and air-out notch normal direction is pointed to the burner hearth back lower place; The Secondary Air exhaust duct is by an end air intake, and the other end seals.
Its principle: the utility model is above the jet block piece, add on the face arch of burner hearth and build a face arch block piece that can change the biomass fuel movement locus---such as a stifled short wall, perhaps, when inconvenience is built by laying bricks or stones, install a baffle plate additional, even add a pipe of the secondary exhausting to canyon.
In the time of above fuel turns under the effect of jet block piece, do not remake free projectile motion, but collide or affected by it with obstacle, fall immediately.The wind of feeding is under the acting in conjunction of face arch and obstacle, at its lower wheal that forms Chui direct rotary Zhuan rotation stream on the other hand.Carry Sheng material Ran Liao rotation and turn burning.
The utility model has the advantages that:
The first, most of fuel, in the sedimentation of burner hearth front end, has reduced scattered band, and the flying dust share further reduces.
The second, the biomass fuel rotary combustion can significantly extend the front time of staying in furnace flame of particles settling, makes particle fully pyrolysis in infall process, separates out volatile matter.Combustible in grate only has remaining fixed carbon, and the fire grate air quantity can further be cut down, and the Actual combustion load of grate inside further reduces, and temperature descends, and further reduces the grate ash deposition propensity.
The 3rd, feeding air quantity wind speed is no longer limited, and adjustable extent strengthens.
The accompanying drawing explanation
Fig. 1 is the side sectional view with the grate surface material spray grate stove of face arch baffle plate.
Fig. 2 is the side sectional view with the grate surface material spray grate stove of front arch secondary air exhaust duct.
The specific embodiment
Referring to accompanying drawing, a kind of chain type grate stove wind-force mixed feeding burner stopped with face arch, include burner hearth 10, the chain-grate 6 of burner hearth 10 belows, the material gate 1 of burner hearth 10 1 sides, front wall 7 and face arch 9 and two-chamber hopper 3, the double cavity structure that two-chamber hopper 3 laterally is separated into it for the nozzle assembly 4 in hopper, the top of nozzle assembly 4 is provided with the adjustable flow distribution plate of angle, the air inlet of nozzle assembly 4 is located on the sidewall of two-chamber hopper 3, and be provided with the jet flow adjustment doors before air inlet, be provided with one group of water conservancy diversion arc plate after being positioned at air inlet in nozzle assembly 4, spacing between the upper surface of the baseplane of nozzle assembly 4 and chain-grate 6 is skewed, the tail end of nozzle assembly 4 is provided with seam shape spout 5, the rear end of seam shape spout 5 is provided with jet block piece 8, face arch 9 is provided with the face arch block piece 11 that changes the biomass fuel movement locus after 3 dischargings of two-chamber hopper.
The upper surface of described nozzle assembly 4 baseplanes and chain-grate 6 has one 5
o～10
oThe angle that warps; The architectural feature of water conservancy diversion arc plate is that front end is parallel with the side incoming flow, and each distance between plates of front end is equal, and water conservancy diversion arc plate end arc transition turns a quarter bend, and each distance between plates after turning also equates; Seam shape spout 5 widths are laterally arranged on grate surface, vertical with chain-grate 6 directions of motion; The height of seam shape spout 5 is 5～40 millimeters, and its bottom surface is apart from 50～120 millimeters of grate surfaces, and the jet direction that seam shape spout 5 forms is parallel to grate surface; Jet block piece 8 is connected with the bottom surface case with the two sides of nozzle assembly 4; Jet block piece 8 forms by two the heat-resisting steel sheet and plate that angle, radius of the radian be not less than 1/4 circular arc of 100 millimeters and is welded, and heat-resisting steel sheet and plate is all wide with nozzle assembly 4; The horizontal range of jet block piece 8 upper limbs and face arch bottom is 100～300 millimeters; Face arch block piece 11 is the short wall on one section block, or the baffle plate of a heat-resisting steel sheet and plate system, and its length direction is vertical with chain-grate 6 directions of motion, and its length and burner hearth 10 are wide; The Secondary Air exhaust duct that face arch block piece 11 is horizontal dress, its length and burner hearth 10 are wide, axially have the air-out notch of interruption, and air-out notch normal direction is pointed to burner hearth 10 back lower places; The Secondary Air exhaust duct is by an end air intake, and the other end seals.
Embodiment mono-: two-chamber hopper 3, nozzle assembly 4 form by Plate Welding, and the jet direction that seam shape spout 5 forms is parallel to grate surface.Two-chamber hopper 3 blasts air by the air inlet of side.Jet block piece 8 is the arc heat-resisting steel sheet and plate, is welded in the end of nozzle assembly 4.
Above jet block piece 8 partially after on some face arch 9, be added with face arch retention device 11, it or one section short wall building out with refractory material, or make a baffle plate with heat-resisting steel sheet and plate.Their positions are identical, and width all with burner hearth 10 equates.
Embodiment bis-: above jet block piece 8 partially after on some face arch 9, with heat resisting pipe, laterally be fixed on face arch 9, vertical with the chain-grate direction of motion.Its length degree and burner hearth are wide.Heat resisting pipe has the air-out notch of interruption vertically in advance, and this Secondary Air exhaust duct also can be used as the face arch retention device.The normal direction of air-out notch is pointed to the back lower place of burner hearth 10.The Secondary Air induced duct that the Secondary Air exhaust duct is connected by an end blasts air.Do not connect the other end sealing of induced duct.
Its course of work is: biomass fuel 2 falls above two-chamber hopper 4, by nozzle assembly 6, is shunted, and approximately 20% biomass fuel 2 falls from ante-chamber, is laid on fire grate and forms the thin layer bed material; Approximately 80% biomass fuel 2 mixes with the wind comes from of two-chamber hopper 4 at seam shape spout 7 places, forms Particle laden jet, sprays to burner hearth 10.Because same jet block piece 8 clashes into, fuel particle is upwards thrown, and collides face arch retention device 11 or affected by Secondary Air, falls immediately, and part of fuel is by Guo Ru rotation stream wheal.Fuel long period pyrolysis aloft in a word, separate out volatile matter, fully burning.Constantly free settling, at the front end of burner hearth 10, forms large thickness grate layer simultaneously, with chain-grate 6, shifts to the burner hearth tail end.
Claims (9)
1. the chain type grate stove wind-force mixed feeding burner stopped with face arch, include burner hearth, the chain-grate of burner hearth below, the material gate of burner hearth one side, front wall and face arch and two-chamber hopper, it is characterized in that: described two-chamber hopper is the double cavity structure that the nozzle assembly in hopper laterally is separated into it, the top of described nozzle assembly is provided with the adjustable flow distribution plate of angle, the air inlet of described nozzle assembly is located on the sidewall of two-chamber hopper, and be provided with the jet flow adjustment doors before air inlet, be provided with one group of water conservancy diversion arc plate after being positioned at air inlet in described nozzle assembly, spacing between the baseplane of described nozzle assembly and the upper surface of chain-grate is skewed, the tail end of described nozzle assembly is provided with seam shape spout, the rear end of described seam shape spout is provided with the jet block piece, described face arch is provided with the face arch block piece that changes the biomass fuel movement locus after the discharging of two-chamber hopper.
2. the chain type grate stove wind-force mixed feeding burner stopped with face arch according to claim 1, it is characterized in that: the upper surface of described nozzle assembly baseplane and chain-grate has one 5
o～10
oThe angle that warps.
3. the chain type grate stove wind-force mixed feeding burner stopped with face arch according to claim 1, it is characterized in that: the architectural feature of described water conservancy diversion arc plate is that front end is parallel with the side incoming flow, and each distance between plates of front end equates, water conservancy diversion arc plate end arc transition turns a quarter bend, and each distance between plates after turning also equates.
4. the chain type grate stove wind-force mixed feeding burner stopped with face arch according to claim 1 is characterized in that: described seam shape width of jet direction is laterally arranged on grate surface, vertical with the chain-grate direction of motion; The height of described seam shape spout is 5～40 millimeters, and its bottom surface is apart from 50～120 millimeters of grate surfaces, and the jet direction that described seam shape spout forms is parallel to grate surface.
5. the chain type grate stove wind-force mixed feeding burner stopped with face arch according to claim 1, it is characterized in that: described jet block piece is connected with the bottom surface case with the two sides of nozzle assembly.
6. the chain type grate stove wind-force mixed feeding burner stopped with face arch according to claim 5, it is characterized in that: described jet block piece forms by two the heat-resisting steel sheet and plate that angle, radius of the radian be not less than 1/4 circular arc of 100 millimeters and is welded, or by two plane heat-resisting steel sheet and plates that form angle, perhaps only by a plane heat-resisting steel sheet and plate vertical welding, in the baseplane of nozzle assembly, formed, and heat-resisting steel sheet and plate is all wide with nozzle assembly.
7. the chain type grate stove wind-force mixed feeding burner stopped with face arch according to claim 6 is characterized in that: the horizontal range of described jet block piece upper limb and face arch bottom is 100～300 millimeters.
8. the chain type grate stove wind-force mixed feeding burner stopped with face arch according to claim 1, it is characterized in that: described face arch block piece is the short wall on one section block, or the baffle plate of a heat-resisting steel sheet and plate system, its length direction is vertical with the chain-grate direction of motion, and its length and burner hearth are wide.
9. the chain type grate stove wind-force mixed feeding burner stopped with face arch according to claim 1, it is characterized in that: the Secondary Air exhaust duct that described face arch block piece is horizontal dress, its length and burner hearth are wide, axially have the air-out notch of interruption, air-out notch normal direction is pointed to the burner hearth back lower place; The Secondary Air exhaust duct is by an end air intake, and the other end seals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220541669 CN202955714U (en) | 2012-10-22 | 2012-10-22 | Chained fire bed furnace wind force mixed feeding combustion device with front arch baffle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220541669 CN202955714U (en) | 2012-10-22 | 2012-10-22 | Chained fire bed furnace wind force mixed feeding combustion device with front arch baffle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202955714U true CN202955714U (en) | 2013-05-29 |
Family
ID=48461284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220541669 Expired - Fee Related CN202955714U (en) | 2012-10-22 | 2012-10-22 | Chained fire bed furnace wind force mixed feeding combustion device with front arch baffle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202955714U (en) |
-
2012
- 2012-10-22 CN CN 201220541669 patent/CN202955714U/en not_active Expired - Fee Related
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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: 20130529 Termination date: 20151022 |
|
| EXPY | Termination of patent right or utility model |