CN219346781U - Vertical biomass hot-blast stove - Google Patents
Vertical biomass hot-blast stove Download PDFInfo
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- CN219346781U CN219346781U CN202320517206.6U CN202320517206U CN219346781U CN 219346781 U CN219346781 U CN 219346781U CN 202320517206 U CN202320517206 U CN 202320517206U CN 219346781 U CN219346781 U CN 219346781U
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Abstract
The utility model discloses a vertical biomass hot blast stove, which relates to the technical field of hot blast stoves and comprises a hot blast stove main body, a feeding device, a flue gas discharge device, a blower, an air inlet and a hot air outlet, wherein a first chamber is arranged in the hot blast stove main body, a fire grate is fixedly arranged in the first chamber, the internal space of the first chamber is divided into a combustion chamber and a blast chamber by the fire grate, a second chamber is arranged between the inner wall of the hot blast stove main body and the outer wall of the first chamber, the second chamber is connected and communicated with the combustion chamber through a flue gas pipe, a hot air layer is formed between the outer wall of the first chamber and the wall surface of the second chamber, which is close to one side of the first chamber, a cold air layer is formed between the inner wall of the hot blast stove main body and the wall surface of the second chamber, which is close to one side of the inner wall of the hot blast stove main body, and the cold air layer is connected and communicated. The vertical biomass hot blast stove provided by the utility model has the advantages of small occupied area and high heat exchange efficiency, and meanwhile, the use safety is improved.
Description
Technical Field
The utility model relates to the technical field of hot blast stoves, in particular to a vertical biomass hot blast stove.
Background
The hot blast stove is a thermodynamic device, has become the product of the traditional steam heat source in the agricultural product drying industry, its principle is: the fuel is combusted in the combustion chamber to generate high-temperature flue gas, and the heat of the high-temperature flue gas is transferred to air through the heat exchanger to heat the air and output medium-temperature high-temperature air; the prior common hot blast stove has the defects that the feeding amount of the fuel is required to be controlled manually and the fuel is paved in a combustion hearth as uniformly as possible, so that the manual work is large, and the feeding amount cannot be controlled uniformly, so that the fuel is not combusted sufficiently and the heat generation is not uniform; at present, the biomass hot blast stove is complicated in design, and is often used by matching a biomass burner with a heat exchanger, so that the mode needs an additional biomass burner, the cost is increased, and the occupied area of equipment is increased at the same time; in the using mode, as the flame is transversely sprayed into the heat exchanger from the outside, the flame is easily reflected back to the flame spraying port of the burner, so that the heat exchanger is easy to burn through, and the burner head is also easy to burn out; the combustion chamber and the heat exchanger are separately designed, so that the heat exchange efficiency is affected to a certain extent; meanwhile, as the combustion chamber of the biomass burner is small, the problems of insufficient combustion, easy coking and the like are easy to occur.
For example, chinese patent CN112524798A discloses a high-efficiency heat exchanger of biomass fuel hot blast stove, which is provided with a main combustion box and an auxiliary combustion box, the upper surface of the main combustion box is communicated with the lower surface of the auxiliary combustion box, the number of blowers is two, the exhaust pipes of the two blowers are respectively communicated with the main combustion box and the auxiliary combustion box, the air outlet end of the auxiliary combustion box is fixedly connected with a connecting pipe, the air outlet end of the connecting pipe is fixedly connected with a heat exchanger, hot air enters into the heat exchanger through an air inlet pipe for heat exchange, the combustion box is matched with the heat exchanger for use, the combustion box is additionally arranged, the cost is increased, the occupied area of equipment is increased, and flame can be transversely sprayed into the connecting pipe to burn the equipment.
Disclosure of Invention
The utility model aims to provide a vertical biomass hot blast stove, which solves the problems of the prior art, has small occupied area and high heat exchange efficiency, and improves the use safety.
In order to achieve the above object, the present utility model provides the following solutions:
the utility model provides a vertical biomass hot blast stove, which comprises a hot blast stove main body, a feeding device connected and communicated with a combustion chamber, a smoke exhaust device connected and communicated with a second chamber, a blower connected and communicated with a cold air layer, an air inlet capable of penetrating through the hot blast stove main body and connected and communicated with the blower chamber, and a hot air outlet connected and communicated with a hot air layer, wherein a first chamber is arranged in the hot blast stove main body, a fire grate is fixedly arranged in the first chamber, the internal space of the hot first chamber is divided into an upper chamber and a lower chamber by the fire grate, the chamber above the fire grate is the combustion chamber, the chamber below the fire grate is a blast chamber, the second chamber is arranged between the internal wall of the hot blast stove main body and the external wall of the first chamber, the second chamber is connected and communicated with the combustion chamber through a smoke pipe, a hot air layer is formed between the external wall of the first chamber and the wall of the second chamber, a cold air layer is formed between the internal wall of the hot blast stove main body and the wall of the second chamber, and a cold air layer is formed between the wall of the hot blast stove main body and the cold air layer; the fuel can be conveyed to the fire grate through the feeding device; the hot air outlet is used for being communicated with drying equipment.
Preferably, the air inlet is connected with and communicated with a blower.
Preferably, the feeding device comprises a lifting machine, a hopper, a rotary blanking device and a blanking pipe, wherein the hopper is arranged corresponding to the lifting machine, the rotary blanking device is connected and communicated with a discharge hole of the hopper, the blanking pipe is connected and communicated with a discharge hole of the rotary blanking device, and the discharge hole of the blanking pipe is connected and communicated with the combustion chamber.
Preferably, the feeding device further comprises a blowing fan arranged at the joint of the rotary blanking device and the blanking pipe.
Preferably, the feeding device further comprises a spiral feeding mechanism arranged at the discharging hole of the discharging pipe, and the discharging hole of the spiral feeding mechanism is connected with and communicated with the combustion chamber.
Preferably, the flue gas exhaust device comprises a first flue gas pipeline connected and communicated with the second chamber, a dust remover connected and communicated with the first flue gas pipeline, a second flue gas pipeline connected and communicated with the dust remover and a chimney connected and communicated with the second flue gas pipeline, and an induced draft fan is arranged on the second flue gas pipeline.
Preferably, the flue gas pipe is connected and communicated with the side top of the first chamber.
Preferably, the fuel is a biomass fuel.
Compared with the prior art, the utility model has the following technical effects:
(1) According to the vertical biomass hot blast stove provided by the utility model, flue gas generated by fuel combustion can enter the second chamber from the combustion chamber through the flue gas pipe and is finally discharged by the flue gas discharge device, cold air can be sent into the cold air layer through the air blower, the cold air can exchange heat with the flue gas and flows into the hot air layer, and finally is discharged through the hot air outlet, so that the output of hot air is realized;
(2) According to the vertical biomass hot blast stove provided by the utility model, under the action of the induced draft fan, combustion flame is upward, the periphery of the combustion chamber is uniformly heated, and the problems of uneven heating of a steel plate of a heat exchanger and burning through of a furnace liner of a traditional combustor due to transverse flaming of the traditional combustor are solved;
(3) And the feeding device is used for feeding, so that the automatic control of fuel feeding is realized and the working efficiency is improved compared with the traditional manual operation mode.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a structure of a feeding device and a hot blast stove body connected with each other;
FIG. 2 is a schematic diagram of the connection structure of the main body and the fume exhausting device of the hot blast stove;
fig. 3 is a top view of the vertical biomass hot blast stove provided by the utility model;
in the figure: 1-a main body of the hot blast stove; 11-a fire grate; 12-combustion chamber; 13-a blast chamber; 14-a second chamber; 15-smoke pipe; 16-a cold air layer; 17-a hot air layer; 18-a hot air outlet; 2-feeding devices; 21-a lifter; 22-a hopper; 23-rotating the blanking device; 24-blanking pipe; 25-a blowing fan; 3-a fume exhaust device; 31-a first flue gas duct; 32-a dust remover; 33-a second flue gas duct; 34-induced draft fan; 35-chimney; 4-a blower; 5-blower.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model aims to provide a vertical biomass hot-blast stove, which solves the problems in the prior art, has small occupied area and high heat exchange efficiency, and improves the use safety.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
The utility model provides a vertical biomass hot blast stove, as shown in figures 1-3, in the embodiment, the vertical biomass hot blast stove comprises a stove main body 1, a feeding device 2 connected and communicated with a combustion chamber 12, a smoke exhaust device 3 connected and communicated with a second chamber 14, a blower 4 connected and communicated with a cold air layer 16, an air inlet capable of penetrating through the stove main body 1 and connected and communicated with a blast chamber 13, and a hot air outlet 18 connected and communicated with a hot air layer 17, wherein a first chamber is arranged in the stove main body 1, a fire grate 11 is fixedly arranged in the first chamber, the fire grate 11 divides the internal space of the hot first chamber into an upper chamber and a lower chamber, the chamber above the fire grate 11 is the combustion chamber 12, the chamber below the fire grate 11 is the blast chamber 13, the second chamber 14 and the combustion chamber 12 are connected and communicated through a smoke pipe 15, the second chamber 14 is formed between the inner wall of the stove main body 1 and the outer wall of the first chamber, the hot air layer 17 is formed between the outer wall of the first chamber 14 and the wall surface of the second chamber, the hot air layer 17 is formed between the inner wall of the stove main body 1 and the cold air layer 16 formed between the inner wall of the second chamber 14 and the cold air layer 16 formed between the inner wall of the second chamber and the cold air layer 16; the fuel can be fed to the grate 11 by the feed device 2; the hot air outlet 18 is adapted to communicate with a drying appliance.
The feeding device 2 can control the quantity of biomass fuel supplied, the biomass fuel is combusted in the combustion chamber 12 on the fire grate 11, the air is continuously fed by the air blower 5 to enable the biomass fuel to be combusted fully, high-temperature flue gas is generated, the high-temperature flue gas moves in the combustion chamber 12 from bottom to top and flows into a flue gas layer through the flue gas pipe 15, the outer wall of the second chamber 14 is made of steel plates, the high-temperature flue gas is discharged through the induced draft fan 34 through the flue gas discharge device 3 after heat exchange is carried out between the high-temperature flue gas and the steel plates, under the action of the induced draft fan 34, combustion flame is upward, the periphery of the combustion chamber 12 is heated uniformly, and the problems of transverse flaming, uneven heating of the steel plates of a heat exchanger and burning through of a furnace liner of the traditional combustion machine are solved; meanwhile, external cold air is sent into the cold air layer 16 through the air feeder 4 and flows through the hot air layer 17, heat exchange is carried out between the external cold air and the steel plate, and finally high-temperature hot air is output from the hot air outlet 18 to the drying equipment.
The air inlet is connected with and communicated with an air blower, the negative pressure can be generated by the combustion chamber and the blast chamber by means of the suction force of the induced draft fan, the natural passive air inlet of the blast chamber is realized, and the active air blowing of the air inlet of the blast chamber can be realized by arranging the air blower at the air inlet.
The feeding device 2 comprises a lifting machine 21, a hopper 22, a rotary blanking device 23, a blanking pipe 24, a blowing fan 25, a discharging hole of the blanking pipe 24, a combustion chamber 12 and a biomass fuel conveying mechanism, wherein the hopper 22 is correspondingly arranged with the lifting machine 21, the rotary blanking device 23 is connected with the discharging hole of the hopper 22 and communicated with the discharging hole of the rotary blanking device 23, the blanking pipe 24 is connected with the discharging hole of the rotary blanking device 23, the blowing fan 25 is arranged at the joint of the rotary blanking device 23 and the blanking pipe 24, the discharging hole of the blanking pipe 24 is connected with the combustion chamber 12 and communicated with the combustion chamber 12, the biomass fuel is conveyed to the hopper 22 by the lifting machine 21 for temporary storage, the rotary blanking device 23 comprises a motor and is driven by the motor, the rotary blanking device 23 is driven by the motor to rotate at a fixed frequency, biomass fuel particles are continuously conveyed downwards to the blanking pipe 24, the biomass fuel is uniformly paved on the fire grate 11 through wind power conveying of the blowing fan 25, and compared with the traditional manual operation mode, the feeding device 2 not only achieves automatic control of fuel feeding, but also improves working efficiency, the blowing fan 25 can be replaced by a spiral feeding mechanism, and biomass fuel can be uniformly paved on the fire grate 11 through the spiral feeding mechanism.
The fume exhausting device 3 comprises a first fume pipe 31 connected and communicated with the second chamber 14, a dust remover 32 connected and communicated with the first fume pipe 31, a second fume pipe 33 connected and communicated with the dust remover 32, and a chimney 35 connected and communicated with the second fume pipe 33, wherein an induced draft fan 34 is arranged on the second fume pipe 33.
The flue pipe 15 is connected and communicated with the side top of the first chamber, so that high-temperature flue gas is ensured to move from bottom to top in the combustion chamber 12.
The vertical biomass hot blast stove provided by the utility model adopts biomass as fuel, integrates automatic feeding and combustion heat exchange, has the advantages of no pollution, fast temperature rise, small volume and stable output hot air, and has the advantages of flue gas and air carrying paths.
The principles and embodiments of the present utility model have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present utility model; also, it is within the scope of the present utility model to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.
Claims (8)
1. A vertical biomass hot blast stove, which is characterized in that: comprising the following steps:
the hot air furnace comprises a hot air furnace main body, wherein a first cavity is arranged in the hot air furnace main body, a fire grate is fixedly arranged in the first cavity, the internal space of the first cavity is divided into an upper cavity and a lower cavity by the fire grate, the cavity above the fire grate is a combustion chamber, the cavity below the fire grate is a blast chamber, a second cavity is arranged between the inner wall of the hot air furnace main body and the outer wall of the first cavity in the hot air furnace main body, the second cavity is connected and communicated with the combustion chamber through a flue gas pipe, a hot air layer is formed between the outer wall of the first cavity and the wall surface of the second cavity, which is close to one side of the first cavity, and a cold air layer is formed between the inner wall of the hot air furnace main body and the wall surface of the second cavity, which is close to one side of the inner wall of the hot air furnace main body, and the cold air layer is connected and communicated with the hot air layer;
a supply device connected and in communication with the combustion chamber, the supply device being capable of delivering fuel to the grate;
a smoke exhaust connected and in communication with the second chamber;
the air feeder is connected and communicated with the cold air layer;
an air inlet which can pass through the hot blast stove main body and is connected and communicated with the blast chamber;
and the hot air outlet is connected and communicated with the hot air layer and is used for being communicated with drying equipment.
2. The vertical biomass hot blast stove according to claim 1, wherein: the air inlet is connected with and communicated with a blower.
3. The vertical biomass hot blast stove according to claim 1, wherein: the feeding device comprises a lifting machine, a hopper, a rotary blanking device and a blanking pipe, wherein the hopper is arranged corresponding to the lifting machine, the rotary blanking device is connected and communicated with a discharge hole of the hopper, the blanking pipe is connected and communicated with a discharge hole of the rotary blanking device, and a discharge hole of the blanking pipe is connected and communicated with the combustion chamber.
4. A vertical biomass hot blast stove according to claim 3, wherein: the feeding device further comprises a blowing fan arranged at the joint of the rotary blanking device and the blanking pipe.
5. A vertical biomass hot blast stove according to claim 3, wherein: the feeding device further comprises a spiral feeding mechanism arranged at the discharging hole of the discharging pipe, and the discharging hole of the spiral feeding mechanism is connected and communicated with the combustion chamber.
6. The vertical biomass hot blast stove according to claim 1, wherein: the flue gas exhaust device comprises a first flue gas pipeline connected and communicated with the second chamber, a dust remover connected and communicated with the first flue gas pipeline, a second flue gas pipeline connected and communicated with the dust remover and a chimney connected and communicated with the second flue gas pipeline, and an induced draft fan is arranged on the second flue gas pipeline.
7. The vertical biomass hot blast stove according to claim 1, wherein: the flue gas pipe is connected and communicated with the side top of the first chamber.
8. The vertical biomass hot blast stove according to claim 1, wherein: the fuel is a biomass fuel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320517206.6U CN219346781U (en) | 2023-03-17 | 2023-03-17 | Vertical biomass hot-blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320517206.6U CN219346781U (en) | 2023-03-17 | 2023-03-17 | Vertical biomass hot-blast stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219346781U true CN219346781U (en) | 2023-07-14 |
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ID=87075523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320517206.6U Active CN219346781U (en) | 2023-03-17 | 2023-03-17 | Vertical biomass hot-blast stove |
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| Country | Link |
|---|---|
| CN (1) | CN219346781U (en) |
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2023
- 2023-03-17 CN CN202320517206.6U patent/CN219346781U/en active Active
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