CN202002137U - Special efficient feeder for biomass direct combustion - Google Patents
Special efficient feeder for biomass direct combustion Download PDFInfo
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- CN202002137U CN202002137U CN2011200237061U CN201120023706U CN202002137U CN 202002137 U CN202002137 U CN 202002137U CN 2011200237061 U CN2011200237061 U CN 2011200237061U CN 201120023706 U CN201120023706 U CN 201120023706U CN 202002137 U CN202002137 U CN 202002137U
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- sieve
- ratchet
- tooth
- special efficient
- biomass direct
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Abstract
The invention provides a special efficient feeder for biomass direct combustion and relates to a feeding device for a biomass combustion chain boiler. In the special efficient feeder for biomass direct combustion, a discharging hopper is arranged on a fire grate; an access door is arranged at the front end below the discharging hopper; a feeding roller is arranged in the discharging hopper through a roller main shaft; a fuel switching plate is arranged above the feeding roller; a material accommodating plate is arranged on the outer side of the feeding roller; poking bars are uniformly arranged on the material accommodating plate; a ratchet wheel is arranged at one end of the roller main shaft; the other end of the roller main shaft is connected with a speed reducer and a motor; a pawl is arranged on the ratchet wheel and connected with a vibrating arm; an angle adjusting plate is arranged on the vibrating arm; the lower end of the vibrating arm is connected with a rotating shaft of a vibrating sieve; the rotating shaft of the vibrating sieve is connected with a tooth type vibrating sieve; a main pipe is arranged on the right above the feeding roller; the lower end of the main pipe is connected with branched pipes; and a plurality of branched pipes are uniformly arranged in the width direction of the fire grate. By adopting the special efficient feeder for biomass direct combustion, fuel layers can be distributed on the chain grate sequentially to form a loose, flat and well ventilated material layer with granule size increased from top to bottom, so that the boiler can run under the efficient, energy-saving and environment-friendly conditions.
Description
Technical field:
The utility model relates to a kind of biomass-burning chain-grate boiler charging gear, relates in particular to a kind of biomass direct-fired special efficient dispenser.
Background technology:
All the time, coal is the pillar of China's energy system.The primary energy demand of China more than 60% satisfied by coal.But because the pressure that the distribution region is extremely inhomogeneous and burning coal brings environment of coal resources, people are seeking more clean energy resource and are substituting fossil fuels such as coal, and new clean energy resource has wind energy, solar energy, water energy and biomass energy etc.
Now increasing newborn substance boiler is being devised or is changing biomass-burning into from original fire coal.Biomass fuel has biomass-making gas, bio oil, several fuel forms such as biomass direct-fired.The boiler of biomass-burning, charging design usually have following version:
At hermetic boiler front wall a hopper is set, fuel is delivered to hopper through haul devices such as conveyer belts, and hopper is provided with the material controlling flashboard by the opening part of furnace wall one side.The fuel that falls on the traveling-grate stoker enters burner hearth by the material controlling flashboard under the drive of chain.Material controlling flashboard liftable is with the control thickness of feed layer, to be suitable for different operating conditions.
The advantage of this device is simple in structure.Shortcoming is the restriction that is subjected to material transport equipment, and the width of hopper is very little, and fuel can only be arranged in the very little scope of relative fire grate width, and this device can only be applicable under the operating condition of arcola and little load; In addition because the specifications vary of fuel is big, and the fuel that enters fire grate is arranged desultorily, cause and ventilate uneven and form " flue ", and living beings are because the volatile content height, it is rapid fire burns, and evenly air distribution is most important to the completing combustion of fugitive constituent gas.Therefore this device increases the gas heat loss due to incomplete combustion of boiler, and the thermal efficiency reduces, and because the easy over-emitting black exhaust of fugitive constituent imperfect combustion is huge to the influence of environment.
Also have a kind of spiral blanking machine, this device has the fuel wideless shortcoming that distributes equally on the fire grate width, and only is fit to grain biomass fuel.
The utility model content:
The purpose of this utility model provides a kind of biomass direct-fired special efficient dispenser, it is applicable to that evaporation capacity is 4T/H～35T/H positive turning chain furnace row biomass boiler, it can make fuel bed be distributed on the traveling-grate stoker in an orderly manner, it is big down little to form the fuel particle diameter, loose smooth, the draughty bed of material, make high efficiency boiler, energy-conservation, the operation of environmental protection ground, the design of fuel switch boards can also make boiler be applicable to grain biomass simultaneously and the biomass fuel of chipping, when the combustion grain biomass, also can distribute along the fire grate width equably, guarantee that boiler is at load, normally move during fuel change.
In order to solve the existing problem of background technology, the utility model is by the following technical solutions: it comprises hopper, the material toggling rib, ratchet, drum spindle, hold flitch, access door, fire grate, tooth-like vibratory sieve, the vibratory sieve rotating shaft, shaker arm, angle adjustment plate, be in charge of, be responsible for, ratchet, give feed roller, the fuel switch boards, decelerator and motor, fire grate is provided with hopper, the hopper lower front end is provided with access door, be provided with to feed roller by drum spindle in the hopper, the fuel switch boards is arranged on to the feed roller top, the appearance flitch is arranged for the feed roller arranged outside, hold on the flitch and evenly be provided with the material toggling rib, drum spindle one end is provided with ratchet, the other end links to each other with motor with decelerator, ratchet is provided with ratchet, ratchet links to each other with shaker arm, shaker arm is provided with angle adjustment plate, the shaker arm lower end links to each other with the vibratory sieve rotating shaft, the vibratory sieve rotating shaft links to each other with tooth-like vibratory sieve, the person in charge is arranged on to the feed roller upper right side, be responsible for the lower end and link to each other with being in charge of, be in charge of on the width that evenly is arranged on fire grate for many.
Described tooth-like vibratory sieve comprises bastard sieve and serration sieve, the bastard sieve is arranged on the upper strata of tooth-like vibratory sieve, the serration sieve is arranged on the lower floor of tooth-like vibratory sieve, the space width of bastard sieve is 50mm-100mm, the space width of serration sieve is 30mm-60mm, the sieve tooth diameter is 4mm-6mm, and the angle between sieve tooth and the fire grate is 40 °-50 °, and angle can be regulated by angle adjustment plate.
The diameter of described ratchet is 250mm-350mm, and the number of teeth is 25-40, and evenly distributes.
Described appearance flitch height is 50mm-100mm.
The diameter of described material toggling rib is 4mm-6mm.
Described fuel switch boards and hopper upper edge angle are 40 °-50 °, and the fuel switch boards is provided with stock guide, guide plate hight 60mm-80mm.
Described predominant tube diameter is 150mm-200mm, and being in charge of diameter is 30mm-80mm, be in charge of with the fire grate angle be 15 °-30 °.
The utility model is to be provided with to give feed roller in hopper, gives to be furnished with the fuel switch boards above the feed roller, and switching screen can rotate around pivot pin, fore shell or back cover to dispenser, when burning grain biomass, will switch screen and go to fore shell, burning goes to back cover when chipping fuel; Be provided with double-deck tooth-like vibratory sieve below feed roller, vibratory sieve is intermittent control shaking under the drive of the shaker arm that is connected to ratchet, can prevent fuel clamping stagnation or accumulation, strengthens screening effect.The fuel of feed hopper is under the drive of material toggling rib, quantitatively fall continuously, during through vibratory sieve, near the fuel that size is big arrives the fire grate starting point along the scalping dedentition on upper strata, the medium fuel of size is fallen with fire grate along lower floor's serration sieve and is moved on the big bed of material of the size of its below, and chip then scatters on the middle-sized bed of material equably.
The utility model formed on the traveling-grate stoker time big little, uniform sequential, draughty fuel bed, the heat loss due to incomplete combustion of gas is minimized, efficiency of combustion is improved, the thermal efficiency of boiler is improved, the ability of boiler reply load variations is strengthened, can be at full capacity even overload operation, and reduced pollution to environment; The design of fuel switch boards both can have been satisfied the combustion living beings of chipping, and can fire grain biomass again, had relaxed the restriction to fuel, for the economical operation of boiler provides necessary condition; Secondary wind on can the open glassware when fuel too dried (burning velocity is too fast) or fuel are too wet to strengthen mixing and playing desiccation of flue gas and fugitive constituent, guarantees required load.The utility model is simple in structure, and power consumption is few, need not to change boiler body during installation, and simple installation is quick, short construction period.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a transmission schematic diagram of the present utility model.
The specific embodiment:
With reference to Fig. 1-2, this specific embodiment is by the following technical solutions: it comprises hopper 1, material toggling rib 2, ratchet 3, drum spindle 4, hold flitch 5, access door 6, fire grate 9, tooth-like vibratory sieve 13, vibratory sieve rotating shaft 14, shaker arm 15, angle adjustment plate 16, be in charge of 17, be responsible for 18, ratchet 19, give feed roller 20, fuel switch boards 21, decelerator 25 and motor 27, fire grate 9 is provided with hopper 1, hopper 1 lower front end is provided with access door 6, be provided with to feed roller 20 by drum spindle 4 in the hopper 1, fuel switch boards 21 is arranged on to feed roller 20 tops, the flitch 5 of appearance is arranged for feed roller 20 arranged outside, hold on the flitch 5 and evenly be provided with material toggling rib 2, drum spindle 4 one ends are provided with ratchet 3, the other end links to each other with motor 27 with decelerator 25, ratchet 3 is provided with ratchet 19, ratchet 19 links to each other with shaker arm 15, shaker arm 15 is provided with angle adjustment plate 16, shaker arm 15 lower ends link to each other with vibratory sieve rotating shaft 14, vibratory sieve rotating shaft 14 links to each other with tooth-like vibratory sieve 13, being responsible for 18 is arranged on to feed roller 20 upper right side, be responsible for 18 lower ends and be in charge of 17 and link to each other, be in charge of 17 for many and evenly be arranged on the width of fire grate 9.
Described tooth-like vibratory sieve 13 comprises bastard sieve 12 and serration sieve 11, and bastard sieve 12 is arranged on the upper strata of tooth-like vibratory sieve 13, and serration sieve 11 is arranged on the lower floor of tooth-like vibratory sieve 13.The space width of bastard sieve 12 is 50mm-100mm, and the space width of serration sieve 11 is 30mm-60mm, and the sieve tooth diameter is 4mm-6mm, and the angle between sieve tooth and the fire grate 9 is 40 °-50 °, and angle can be regulated by angle adjustment plate 16.
The diameter of described ratchet 3 is 250mm-350mm, and the number of teeth is 25-40, and evenly distributes.
Described appearance flitch 5 highly is 50mm-100mm.
The diameter of described material toggling rib 2 is 4mm-6mm.
Described fuel switch boards 21 is 40 °-50 ° with hopper 1 upper edge angle, and fuel switch boards 21 is provided with stock guide, guide plate hight 60mm-80mm.
The described person in charge's 18 diameters are 150mm-200mm, and being in charge of 17 diameters is 30mm-80mm, be in charge of 17 with fire grate 9 angles be 15 °-30 °.
This specific embodiment is arranged on the outside of boiler front wall 10, be provided with in its hopper 1 and give feed roller 20, give and be furnished with fuel switch boards 21 above the feed roller 20, fuel switch boards 21 can be rotated around pivot pin, fore shell or back cover to dispenser, when burning grain biomass, will switch screen and go to fore shell, burning goes to back cover when chipping fuel; Be provided with double-deck tooth-like vibratory sieve 13 below feed roller 20, vibratory sieve is intermittent control shaking under the drive of the shaker arm that is connected to ratchet, can prevent fuel clamping stagnation or accumulation, strengthens screening effect.The fuel of feed hopper is under the drive of material toggling rib 2, quantitatively fall continuously, during through vibratory sieve, near the fuel that size is big arrives the fire grate starting point along the scalping dedentition on upper strata, the medium fuel of size is fallen with fire grate along lower floor's serration sieve and is moved on the big bed of material of the size of its below, and chip then scatters on the middle-sized bed of material equably.
This specific embodiment formed on the traveling-grate stoker time big little, uniform sequential, draughty fuel bed, the heat loss due to incomplete combustion of gas is minimized, efficiency of combustion is improved, the thermal efficiency of boiler is improved, the ability of boiler reply load variations is strengthened, can be at full capacity even overload operation, and reduced pollution to environment; The design of fuel switch boards both can have been satisfied the combustion living beings of chipping, and can fire grain biomass again, had relaxed the restriction to fuel, for the economical operation of boiler provides necessary condition; Secondary wind on can the open glassware when fuel too dried (burning velocity is too fast) or fuel are too wet to strengthen mixing and playing desiccation of flue gas and fugitive constituent, guarantees required load.The utility model is simple in structure, and power consumption is few, need not to change boiler body during installation, and simple installation is quick, short construction period.
Embodiment: this specific embodiment is that the implementation result that just changes on the chain-grate boiler of 20T/H is as follows a rated capacity: boiler design fuel is living beings, the chip fugitive constituent V of living beings of burning
Ad=71.55%, full water M
t=10.5%, ash content A
Ad=3.17%, fixed carbon FC
Ad=17.16%.
Before implement improving, the boiler blanking device is for only with the hopper of a cylinder.Fuel bed confusion to the traveling-grate stoker, improper ventilation, grate firing is inhomogeneous, occurs burner often, also frequent over-emitting black exhaust.Using when chipping living beings, undercapacity, peak load can only reach 15T/H, and exhaust gas volumn is big, over-emitting black exhaust rate height.
After the improvement, the device that boiler adopts the specific embodiment to propose replaces original blanking device, only takes over a secondary air channel on former combustion air trunk line, and other system and boiler body are not all done any change, one day Installation and Debugging phase.After the fuel bed situation was improved, grate was stable, over-emitting black exhaust not, and the foot of exerting oneself, operating condition is stable, and regulating working conditions is convenient, has reached intended purposes.Use with improve before during identical fuel, peak load can reach 22T/H, and can keep stable operation, not over-emitting black exhaust.Open secondary wind when the big or fuel of load is wet, still keep load.
Claims (7)
1. biomass direct-fired special efficient dispenser, it is characterized in that it comprises hopper (1), material toggling rib (2), ratchet (3), drum spindle (4), hold flitch (5), access door (6), fire grate (9), tooth-like vibratory sieve (13), vibratory sieve rotating shaft (14), shaker arm (15), angle adjustment plate (16), be in charge of (17), be responsible for (18), ratchet (19), give feed roller (20), fuel switch boards (21), decelerator (25) and motor (27), fire grate (9) is provided with hopper (1), hopper (1) lower front end is provided with access door (6), be provided with to feed roller (20) by drum spindle (4) in the hopper (1), fuel switch boards (21) is arranged on to feed roller (20) top, appearance flitch (5) is arranged for feed roller (20) arranged outside, hold on the flitch (5) and evenly be provided with material toggling rib (2), drum spindle (4) one ends are provided with ratchet (3), the other end links to each other with motor (27) with decelerator (25), ratchet (3) is provided with ratchet (19), ratchet (19) links to each other with shaker arm (15), shaker arm (15) is provided with angle adjustment plate (16), shaker arm (15) lower end links to each other with vibratory sieve rotating shaft (14), vibratory sieve rotating shaft (14) links to each other with tooth-like vibratory sieve (13), being responsible for (18) is arranged on to feed roller (20) upper right side, be responsible for (18) lower end and link to each other, be in charge of on the width that (17) evenly be arranged on fire grate (9) for many with being in charge of (17).
2. biomass direct-fired special efficient dispenser according to claim 1, it is characterized in that described tooth-like vibratory sieve (13) comprises bastard sieve (12) and serration sieve (11), bastard sieve (12) is arranged on the upper strata of tooth-like vibratory sieve (13), serration sieve (11) is arranged on the lower floor of tooth-like vibratory sieve (13), the space width of bastard sieve (12) is 50mm-100mm, the space width of serration sieve (11) is 30mm-60mm, the sieve tooth diameter is 4mm-6mm, and the angle between sieve tooth and the fire grate (9) is 40 °-50 °.
3. biomass direct-fired special efficient dispenser according to claim 1, the diameter that it is characterized in that described ratchet (3) is 250mm-350mm, the number of teeth is 25-40, and evenly distributes.
4. biomass direct-fired special efficient dispenser according to claim 1 is characterized in that described appearance flitch (5) highly is 50mm-100mm.
5. biomass direct-fired special efficient dispenser according to claim 1, the diameter that it is characterized in that described material toggling rib (2) is 4mm-6mm.
6. biomass direct-fired special efficient dispenser according to claim 1 is characterized in that described fuel switch boards (21) and hopper (1) upper edge angle are 40 °-50 °, and fuel switch boards (21) is provided with stock guide, guide plate hight 60mm-80mm.
7. biomass direct-fired special efficient dispenser according to claim 1 is characterized in that the described person in charge (18) diameter is 150mm-200mm, and being in charge of (17) diameter is 30mm-80mm, and being in charge of (17) is 15 °-30 ° with fire grate (9) angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200237061U CN202002137U (en) | 2011-01-25 | 2011-01-25 | Special efficient feeder for biomass direct combustion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200237061U CN202002137U (en) | 2011-01-25 | 2011-01-25 | Special efficient feeder for biomass direct combustion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202002137U true CN202002137U (en) | 2011-10-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200237061U Expired - Fee Related CN202002137U (en) | 2011-01-25 | 2011-01-25 | Special efficient feeder for biomass direct combustion |
Country Status (1)
| Country | Link |
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| CN (1) | CN202002137U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048310A (en) * | 2014-05-19 | 2014-09-17 | 沈阳工程学院 | Intermediate bunker of biomass boiler taking straw as fuel |
| CN104633690A (en) * | 2015-02-15 | 2015-05-20 | 广州贝龙环保热力设备股份有限公司 | Eccentric type biomass fuel feeder |
| WO2015149637A1 (en) * | 2014-04-04 | 2015-10-08 | 车战斌 | Combustion device for solid fuels |
| CN109732941A (en) * | 2018-12-25 | 2019-05-10 | 湖南工业大学 | A kind of biostromal composite material molding machine |
| CN110980176A (en) * | 2019-11-28 | 2020-04-10 | 苏州嘉诺环境工程有限公司 | Material conveying device suitable for stokehold feeding system |
| CN112747307A (en) * | 2020-12-08 | 2021-05-04 | 汤宝宝 | Industrial coal-fired boiler |
| CN113154512A (en) * | 2021-05-01 | 2021-07-23 | 刘庆超 | Household environment-friendly bundling straw heating stove |
-
2011
- 2011-01-25 CN CN2011200237061U patent/CN202002137U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015149637A1 (en) * | 2014-04-04 | 2015-10-08 | 车战斌 | Combustion device for solid fuels |
| CN104048310A (en) * | 2014-05-19 | 2014-09-17 | 沈阳工程学院 | Intermediate bunker of biomass boiler taking straw as fuel |
| CN104633690A (en) * | 2015-02-15 | 2015-05-20 | 广州贝龙环保热力设备股份有限公司 | Eccentric type biomass fuel feeder |
| CN109732941A (en) * | 2018-12-25 | 2019-05-10 | 湖南工业大学 | A kind of biostromal composite material molding machine |
| CN110980176A (en) * | 2019-11-28 | 2020-04-10 | 苏州嘉诺环境工程有限公司 | Material conveying device suitable for stokehold feeding system |
| CN112747307A (en) * | 2020-12-08 | 2021-05-04 | 汤宝宝 | Industrial coal-fired boiler |
| CN113154512A (en) * | 2021-05-01 | 2021-07-23 | 刘庆超 | Household environment-friendly bundling straw heating stove |
| CN113154512B (en) * | 2021-05-01 | 2022-04-12 | 刘庆超 | Household environment-friendly bundling straw heating stove |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20120125 |