CN209744362U - Biomass particle combustion stove - Google Patents
Biomass particle combustion stove Download PDFInfo
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- CN209744362U CN209744362U CN201920422653.7U CN201920422653U CN209744362U CN 209744362 U CN209744362 U CN 209744362U CN 201920422653 U CN201920422653 U CN 201920422653U CN 209744362 U CN209744362 U CN 209744362U
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Abstract
The utility model relates to a combustion apparatus technical field specifically relates to a living beings granule burning stove. Two fire grates are arranged in the combustion bin, and rotating shafts of the two fire grates respectively extend to the outside of the furnace body and are connected with a fire grate transmission mechanism; an ash removing auger is arranged in the ash falling bin, and one end of an auger shaft where the ash removing auger is arranged extends out of the furnace body and is connected with an ash removing transmission mechanism; the ash outlet of the ash removing auger is arranged at the other side far away from the furnace body of the feeding device; the storage bin of the feeding device is arranged above the side of the combustion bin and is arranged above the upper feeding auger; the discharge end of the lower feeding auger is arranged above the side of the combustion bin in the furnace body, and the upper feeding auger and the lower feeding auger are respectively connected with the feeding transmission mechanism. The fire grate rotating as a fixed shaft realizes dynamic combustion and solves the slagging problem; the ash cleaning auger and the transmission mechanism with synchronous feeding and ash cleaning solve the problem that accumulated ash cannot be cleaned in time.
Description
Technical Field
The utility model relates to a combustion apparatus technical field specifically relates to a living beings granule burning stove.
Background
With the increasing importance of the country on environmental protection, the development and utilization of biomass energy are vigorously promoted. So that the biomass granular fuel is widely applied to actual production and life. The biomass pellet fuel has the advantages of easy storage, convenient transportation, cleanness, environmental protection, high combustion efficiency and the like, and is one of the main directions for developing and utilizing the biomass energy.
However, the following problems are encountered when using bio-particles as fuel:
The first problem is that: the biomass granular fuel pressed by the plant straws has high sugar content, and the phenomenon of slag bonding frequently occurs in a furnace during combustion. When the fuel is burnt, the slag is formed in the furnace, the ventilation gap between fuel layers can be blocked, the fuel waste is caused by the influence of the normal burning of the fuel in the furnace, and the service life of combustion equipment is seriously influenced.
The second problem is that: most of fire grates of traditional small and medium-sized biomass particle combustion stoves are fixed, and ash and slag are often required to be removed manually and periodically; if the accumulated ash cannot be cleaned in time, the combustion performance of the stove is affected; the long-term excessive accumulation of ash can affect the service life of the furnace.
therefore, according to the above situation, it is very desirable to develop a biomass particle combustion furnace capable of realizing dynamic combustion and timely removing deposited ash.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a biomass particle combustion furnace which is provided with a rotary grate and realizes automatic feeding and ash removal.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
A biomass particle combustion furnace comprises a furnace body, an induced draft fan and a feeding device, wherein a combustion chamber and a flue gas chamber are arranged in the furnace body, the top of the flue gas chamber is provided with a smoke outlet, and the smoke outlet is connected with the induced draft fan; the combustion chamber is arranged into an upper part and a lower part: the upper part is a combustion bin, the lower part is an ash falling bin, the feeding device is arranged outside the furnace body, two fire grates are arranged in the combustion bin, each fire grate consists of a rotating shaft and fire grate teeth arranged on the rotating shaft, and the rotating shafts of the two fire grates respectively extend to the outside of the furnace body and are connected with a fire grate transmission mechanism;
An ash removing auger is arranged in the ash falling bin, one end of an auger shaft where the ash removing auger is located extends out of the furnace body and is connected with an ash removing transmission mechanism, and the ash removing transmission mechanism and the grate transmission mechanism are located on the same side of the furnace body; the ash outlet of the ash removing auger is arranged at the other side far away from the furnace body of the feeding device;
the storage bin of the feeding device is arranged above the side of the combustion bin, the storage bin is arranged above the upper feeding auger, the discharge end of the upper feeding auger is provided with a communicating pipe, and the communicating pipe is arranged above the lower feeding auger; the discharge end of the lower feeding auger is arranged above the side of the combustion bin in the furnace body, and the upper feeding auger and the lower feeding auger are respectively connected with the feeding transmission mechanism.
Compared with the traditional technical scheme, the beneficial effects of the utility model are that: the fire grate rotating with a fixed shaft realizes the dynamic combustion of fuel in the combustion bin, and effectively solves the slagging problem; the ash cleaning auger and the transmission mechanism with synchronous feeding and ash cleaning effectively solve the problem that accumulated ash cannot be cleaned in time.
Can also be right the utility model discloses improve as follows:
And a spacer bush with a certain width is arranged between adjacent grate teeth on a rotating shaft of the same grate, the spacer bush is fixed on the rotating shaft, the width of the spacer bush is 6-8 mm wider than the thickness of the grate teeth, and the grate teeth of the two grates are mutually inserted into the space between the adjacent grate teeth of the other grate.
The center of the grate tooth is provided with a round sleeve structure, and 8 strip-shaped bodies are uniformly arranged on the outer wall of the round sleeve structure in the circumferential direction.
The fire grate transmission mechanism consists of a pair of gears which are arranged on two rotating shafts and are meshed with each other, a first driven wheel arranged on the rotating shafts and a first driving wheel arranged on a shaft of a first motor; the feeding transmission mechanism consists of a second driven wheel arranged on an auger shaft of the upper feeding auger, a third driven wheel arranged on an auger shaft of the lower feeding auger and a second driving wheel on a second motor; the ash removal transmission mechanism consists of a third driven wheel and a fourth driven wheel arranged on a packing auger shaft of the ash removal packing auger.
The first driving wheel, the first driven wheel, the second driving wheel, the second driven wheel, the third driven wheel and the fourth driven wheel are respectively provided with chain wheels, and the transmission among the wheels is chain transmission.
Support sleeves are respectively arranged on auger shafts of the upper feeding auger, the lower feeding auger and the ash removal auger and on a rotating shaft of the fire grate; wherein the auger shaft of the ash removal auger and the support sleeve on the rotating shaft of the fire grate are respectively fixed on the outer wall of the furnace body.
The first motor is connected with the time relay and the speed regulator through a circuit; the second motor is connected with the time relay and the speed regulator through a circuit.
the top of the combustion chamber is a flue gas inlet of a flue gas chamber, and the flue gas inlet adopts an upward convex curved surface structure.
Drawings
Fig. 1 is a front view of the present invention;
Fig. 2 is a plan view of the present invention corresponding to fig. 1;
Fig. 3 is a right side view of the present invention corresponding to fig. 1;
FIG. 4 is a top view of the combustion chamber and grate;
FIG. 5 is a block diagram of a fire grate tooth;
in the figure: a furnace body 1; an induced draft fan 2; a feeding device 3; a storage bin 301; an upper feed auger 302; a lower feeding auger 303; a combustion chamber 4; an ash falling bin 401; a combustion bin 402; ash removal auger 403; a flue gas chamber 5; a smoke inlet 501; a smoke outlet 502; a grate 6; a rotating shaft 601; a grate tooth 602; a gear 7; a first electric motor 8; a second electric motor 9; a first drive pulley 10; a second driving wheel 11; a first driven wheel 12; a second driven pulley 13; a third driven pulley 14; a fourth driven pulley 15; a support sleeve 16; a time relay 17; a governor 18; a door 19; an ash hopper 20; spacer 21.
Detailed Description
the present invention will be described in further detail with reference to the following embodiments and accompanying drawings.
As shown in fig. 1 to 5, the biomass particle combustion furnace of the present embodiment is mainly composed of a furnace body 1, an induced draft fan 2, a feeding device 3, a storage bin 301, an upper feeding auger 302, a lower feeding auger 303, a combustion chamber 4, an ash dropping bin 401, an ash cleaning auger 403, a flue gas chamber 5, a flue gas inlet 501, a flue gas outlet 502, a combustion bin 402, a fire grate 6, a rotating shaft 601, fire grate teeth 602, a gear 7, a first motor 8, a second motor 9, a first driving wheel 10, a second driving wheel 11, a first driven wheel 12, a second driven wheel 13, a third driven wheel 14, a fourth driven wheel 15, a support sleeve 16, a time relay 17, a speed regulator 18, a furnace door 19, an ash hopper 20, a spacer 21, and the like.
Wherein be provided with combustion chamber 4 and flue gas chamber 5 in the furnace body 1, constitute the flue by the steel pipe of many intercommunications at the flue gas chamber 5 of furnace body 1, there is the inlet 501 of flue gas chamber 5 even on the top surface of combustion chamber 4, the top of flue gas chamber 5 is provided with exhaust port 502, exhaust port 502 is connected with draught fan 2, the flue gas that produces in the combustion chamber 4 gets into the flue of flue gas chamber 5 through inlet 501, the flue gas of raising in through the outlet 502 discharges under the effect of draught fan 2. The combustion chamber 4 is provided with an upper part and a lower part: the upper part is a combustion bin 402, the lower part is an ash falling bin 401, and the feeding device 3 is arranged outside the furnace body 1.
Two fire grates 6 are arranged in the combustion bin 402, each fire grate 6 is composed of a rotating shaft and fire grate teeth 602, the rotating shaft 601 is mounted on the rotating shaft, the fire grate teeth 602 in the embodiment are fixedly mounted on the rotating shaft 601 by adopting a welding method, and the rotating shafts 601 of the two fire grates 6 respectively extend to the outside of the furnace body 1 and are connected with a fire grate transmission mechanism.
Under the action of the grate transmission mechanism, the grate 6 rotates around a fixed shaft, and the grate 6 rotates around the fixed shaft, so that biomass particles realize dynamic rolling combustion in the combustion chamber 4, thereby not only ensuring the full combustion of fuel, but also timely dropping ash and slag attached to the burning fuel and avoiding the occurrence of slagging in the combustion chamber 4.
an ash removing auger 403 is arranged in the ash falling bin 401, one end of an auger shaft where the ash removing auger 403 is located extends out of the furnace body 1 and is connected with an ash removing transmission mechanism, and the ash removing transmission mechanism and the fire grate transmission mechanism are located on the same side of the furnace body 1; the ash outlet of the ash cleaning auger 403 is arranged at the other side of the furnace body far away from the feeding device 3. The ash falling bin 401 is internally provided with an ash removing auger 403, so that automatic ash removal is realized, and influence and damage to the combustion performance of the embodiment caused by untimely ash removal are avoided.
The storage bin 301 of the feeding device 3 is arranged above the side of the combustion bin 402, the storage bin 301 is arranged above the upper feeding auger 302, the discharge end of the upper feeding auger 302 is provided with a communicating pipe, and the communicating pipe is arranged above the lower feeding auger 303; the discharge end of the lower feeding auger 303 is arranged above the side of the combustion bin 402 in the furnace body 1, and the upper feeding auger 302 and the lower feeding auger 301 are respectively connected with the feeding transmission mechanism.
under the action of the feeding transmission mechanism, the biomass granular fuel in the storage bin 301 is conveyed to the communicating pipe through the upper feeding auger 302, then conveyed to the lower feeding auger 303 through the communicating pipe, and finally conveyed to the combustion bin 402 by the lower feeding auger 303. The double augers supply materials in a grading way, so that the problems of blockage and uneven blanking of fuel in the augers are solved, and the uniformity of the supply materials is obviously improved; and simultaneously, the uniform and proper amount of fuel is provided for the combustion chamber 4, so that the combustion condition in the combustion chamber 4 is improved, and the fuel is combusted more fully. Under the drive of the second motor 9, the synchronous feeding and dust removing are realized through the combined action of the feeding transmission mechanism and the dust removing transmission mechanism, and the real-time automatic dust removing function is realized.
The advantages of this embodiment: the biomass granular fuel realizes dynamic combustion in the combustion bin 402, and compared with the stove adopting the traditional fixed grate 6, the biomass granular fuel solves the problem of coking in the combustion chamber 4, and improves the stability of the combustion state of the stove; the automation of cleaning the deposited dust is realized, and the adverse effect caused by the deposited dust is eliminated.
the present embodiment adopts the following preferred structure:
As a preferable structure, a spacer 21 with a certain width is arranged between adjacent grate teeth 602 on a rotating shaft 601 of the same grate 6, the spacer 21 is fixed on the rotating shaft 601, the width of the spacer 21 is 6-8 mm wider than the thickness of the grate teeth 602, and the grate teeth 602 of two grates 6 are mutually inserted into the interval between the adjacent grate teeth 602.
As a preferable structure, in the present embodiment, a circular sleeve-shaped structure is provided at the center of the grate teeth 602, and 8 bars are uniformly provided on the outer wall of the circular sleeve-shaped structure in the circumferential direction.
as a preferable structure, the grate transmission mechanism in this embodiment is composed of a pair of gears 7 engaged with each other and mounted on two rotating shafts 601, a first driven wheel 12 mounted on the rotating shaft 601, and a first driving wheel 10 mounted on the shaft of the first motor 8.
The feeding transmission mechanism is composed of a second driven wheel 13 arranged on the auger shaft of the upper feeding auger 302, a third driven wheel 14 arranged on the auger shaft of the lower feeding auger 303 and a second driving wheel 11 arranged on the second motor 9.
The ash removal transmission mechanism is composed of a third driven wheel 14 and a fourth driven wheel 15 arranged on a packing auger shaft of the ash removal packing auger 403.
In a preferred structure, the first driving wheel 10, the first driven wheel 12, the second driving wheel 11, the second driven wheel 13, the third driven wheel 14 and the fourth driven wheel 15 respectively adopt chain wheels, and the transmission among the wheels is chain transmission. The chain wheel is adopted to realize stable transmission ratio, and different transmission ratios can be selected according to requirements, so that the fuel ratio in the combustion chamber 4 between the feeding and the ash removal is optimized. Because the operation environment is relatively high in temperature, the chain transmission is long in service life, and the influence of the temperature is smaller than that of belt transmission and the like.
As a preferable structure, support sleeves 16 are respectively arranged on auger shafts of the upper feeding auger 302, the lower feeding auger 303 and the ash removal auger 403 and a rotating shaft 601 of the fire grate 6; wherein, the auger shaft of the ash cleaning auger 403 and the support sleeve 16 on the rotating shaft 601 of the fire grate 6 are respectively fixed on the outer wall of the furnace body 1. The support sleeve 16 is internally provided with a bearing, and the support sleeve 16 can enable the auger shaft and the grate 6 to rotate more stably and smoothly.
As a preferable structure, the first motor 8 is connected with a time relay 17 and a speed governor 18 through a circuit; the second motor 9 is connected to a time relay 17 and a governor 18 through a circuit. The material feeding time and the combustion intensity are controlled by using the matching of the time relay 17 and the speed regulator 18, namely the material feeding amount is controlled, and the controllability of the material feeding amount is realized; the fuel ratio in the combustion chamber 4 is more reasonable through adjusting the feeding amount.
As a preferred structure, the top of the combustion chamber 4 is a flue gas inlet of a flue gas chamber 5, and the flue gas inlet adopts an upward convex curved structure. The structure can gather together, and further improves the stability of the combustion of the biomass granular fuel in the combustion chamber.
Preferably, two igniters are disposed within the combustion chamber 402. Automatic rapid ignition is achieved, and normally, only 2 minutes are needed to ignite the fuel in the combustion chamber 4.
Through carrying out multiple continuous combustion experiments on the product of the embodiment, no slagging condition occurs in the biomass granular fuel in the combustion bin 402; the ash and slag in the ash falling bin 401 are all powder, and have no unburned residual body particles or agglomerated coke bodies of the biomass particle fuel.
The application method of the embodiment comprises the following steps: the present embodiment is divided into two modes of ignition and operation. And powering on the control system under the condition of ensuring the power supply to be switched on.
Manually selecting a starting ignition mode: the first motor 8 is started and drives the feeding device 3 to feed materials to the combustion bin 402; when the thickness of the fuel in the combustion chamber 4 is about 2/3 from the upper surface of the rotating shaft 601 in the combustion chamber 4 to the height of the upper end of the combustion chamber 402, the first motor 8 is powered off, and the feeding is stopped;
The igniter is electrified to start working, and the ignition is finished after 2 minutes; the state of the fuel in the combustion chamber 4 is observed through the door 19, and the operation mode is manually switched after the flame in the combustion chamber 4 is substantially stabilized.
In the operation mode, the control system realizes the regulation and control of the combustion intensity and the stability by controlling and adjusting the time relay 17, the speed regulator 18, the first motor 8, the second motor 9 and the start and stop. Thereby achieving stable automatic combustion. One need only add fuel and empty the hopper 20 at regular intervals. The filler is only required to be filled for 1-2 times every day, and the ash is removed for 1-2 times.
Claims (8)
1. A biomass particle combustion furnace comprises a furnace body, an induced draft fan and a feeding device, wherein a combustion chamber and a flue gas chamber are arranged in the furnace body, the top of the flue gas chamber is provided with a smoke outlet, and the smoke outlet is connected with the induced draft fan; the combustion chamber is arranged into an upper part and a lower part: the upper portion is the combustion chamber, and the lower part is the ash falling bin, and feedway sets up in the furnace body outside, its characterized in that: two fire grates are arranged in the combustion bin, each fire grate consists of a rotating shaft and fire grate teeth arranged on the rotating shaft, and the rotating shafts of the two fire grates extend to the outside of the furnace body respectively and are connected with a fire grate transmission mechanism;
an ash removing auger is arranged in the ash falling bin, one end of an auger shaft where the ash removing auger is located extends out of the furnace body and is connected with an ash removing transmission mechanism, and the ash removing transmission mechanism and the grate transmission mechanism are located on the same side of the furnace body; the ash outlet of the ash removing auger is arranged at the other side far away from the furnace body of the feeding device;
the storage bin of the feeding device is arranged above the side of the combustion bin, the storage bin is arranged above the upper feeding auger, the discharge end of the upper feeding auger is provided with a communicating pipe, and the communicating pipe is arranged above the lower feeding auger; the discharge end of the lower feeding auger is arranged above the side of the combustion bin in the furnace body, and the upper feeding auger and the lower feeding auger are respectively connected with the feeding transmission mechanism.
2. The biomass particle burning stove according to claim 1, wherein: and a spacer bush with a certain width is arranged between adjacent grate teeth on a rotating shaft of the same grate, the spacer bush is fixed on the rotating shaft, the width of the spacer bush is 6-8 mm wider than the thickness of the grate teeth, and the grate teeth of the two grates are mutually inserted into the space between the adjacent grate teeth of the other grate.
3. The biomass particle burning stove according to claim 2, wherein: the center of the grate tooth is provided with a round sleeve structure, and 8 strip-shaped bodies are uniformly arranged on the outer wall of the round sleeve structure in the circumferential direction.
4. The biomass particle burning stove according to claim 1, wherein: the fire grate transmission mechanism consists of a pair of gears which are arranged on two rotating shafts and are meshed with each other, a first driven wheel arranged on the rotating shafts and a first driving wheel arranged on a shaft of a first motor; the feeding transmission mechanism consists of a second driven wheel arranged on the auger shaft of the upper feeding auger, a third driven wheel arranged on the auger shaft of the lower feeding auger and a second driving wheel on a second motor; the ash removal transmission mechanism consists of a third driven wheel and a fourth driven wheel arranged on a packing auger shaft of the ash removal packing auger.
5. The biomass particle burning stove according to claim 4, wherein: the first driving wheel, the first driven wheel, the second driving wheel, the second driven wheel, the third driven wheel and the fourth driven wheel are respectively provided with chain wheels, and the transmission among the wheels is chain transmission.
6. The biomass particle burning stove according to claim 1, wherein: support sleeves are respectively arranged on auger shafts of the upper feeding auger, the lower feeding auger and the ash removal auger and on a rotating shaft of the fire grate; wherein the auger shaft of the ash removal auger and the support sleeve on the rotating shaft of the fire grate are respectively fixed on the outer wall of the furnace body.
7. The biomass particle combustion furnace as claimed in any one of claims 1 to 5, wherein: the first motor is connected with the time relay and the speed regulator through a circuit; the second motor is connected with the time relay and the speed regulator through a circuit.
8. The biomass particle combustion furnace as claimed in any one of claims 1 to 6, wherein: the top of the combustion chamber is a flue gas inlet of a flue gas chamber, and the flue gas inlet adopts an upward convex curved surface structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920422653.7U CN209744362U (en) | 2019-03-31 | 2019-03-31 | Biomass particle combustion stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920422653.7U CN209744362U (en) | 2019-03-31 | 2019-03-31 | Biomass particle combustion stove |
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| Publication Number | Publication Date |
|---|---|
| CN209744362U true CN209744362U (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920422653.7U Active CN209744362U (en) | 2019-03-31 | 2019-03-31 | Biomass particle combustion stove |
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| CN (1) | CN209744362U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855087A (en) * | 2019-03-31 | 2019-06-07 | 唐山市丰润区神火新能源开发有限公司 | Biological particles combustion stove |
| CN112128792A (en) * | 2020-09-25 | 2020-12-25 | 衡阳市大成锅炉有限公司 | Boiler of scraper feeding system |
-
2019
- 2019-03-31 CN CN201920422653.7U patent/CN209744362U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855087A (en) * | 2019-03-31 | 2019-06-07 | 唐山市丰润区神火新能源开发有限公司 | Biological particles combustion stove |
| CN112128792A (en) * | 2020-09-25 | 2020-12-25 | 衡阳市大成锅炉有限公司 | Boiler of scraper feeding system |
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