CN213207826U - Semi-gasification anti-coking biomass particle fireplace - Google Patents

Abstract

The utility model provides a semi-gasification anti-coking biomass particle fireplace, which comprises an upper combustion chamber, a lower combustion chamber, an ash chamber and a rotary burner rotatably arranged in the ash chamber, wherein the bottom of the upper combustion chamber is communicated with the top of the lower combustion chamber, and a secondary air inlet device is arranged at the bottom of the upper combustion chamber; a feeding hole is formed in the side wall of the lower combustion cavity, a combustion port is formed in the bottom of the lower combustion cavity, an ignition rod is arranged in the combustion port, the rotary combustor is located right below the combustion port, and a ventilation gap is reserved between the outer edge of the rotary combustor and the combustion port; the ash chamber is provided with a primary air inlet. The semi-gasification anti-coking biomass particle fireplace has the advantages of scientific design, easy ash cleaning, smooth ventilation and difficult coking.

Description

Semi-gasification anti-coking biomass particle fireplace

Technical Field

The utility model relates to a fireplace, specific theory has related to a semi-gasification anti-coking living beings granule fireplace.

Background

The existing air-heating fireplace in the market is based on a biomass particle primary combustion mode, wherein the primary combustion mode refers to that biomass particles are directly combusted in a combustion cavity, air enters the lower portion of the combustion cavity, negative pressure is generated inside the combustion cavity, and combustion waste gas is discharged out of the combustion cavity. The combustion mode has the disadvantages that when the fuel is poor, the ash ratio is high, the fuel is easy to coke in the combustion chamber, the combustion is influenced, and great troubles are brought to subsequent decoking.

In order to solve the problems, the applicant provides a biomass air heating fireplace in the patent with the application number of 202010018249.0, wherein an upper combustion chamber and a lower combustion chamber are designed to solve the coking problem, but after fuel in the lower combustion chamber is reacted, air holes in an ash falling disc are easily blocked by residual ash residues, so that the ash residues are prevented from falling, the cleaning is not convenient, the air holes are easily blocked, and air entering into the lower combustion chamber is influenced.

In order to solve the above problems, people are always seeking an ideal technical solution.

Disclosure of Invention

The utility model aims at the not enough of prior art to a semi-gasification anti-coking biomass particle fireplace that design science, lime-ash are easily cleared up, ventilate smoothly, difficult coking is provided.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is: a semi-gasification anti-coking biomass particle fireplace comprises an upper combustion cavity, a lower combustion cavity, an ash chamber and a rotary combustor rotatably arranged in the ash chamber, wherein the bottom of the upper combustion cavity is communicated with the top of the lower combustion cavity, and a secondary air inlet device is arranged at the bottom of the upper combustion cavity; a feeding hole is formed in the side wall of the lower combustion cavity, a combustion port is formed in the bottom of the lower combustion cavity, an ignition rod is arranged in the combustion port, the rotary combustor is located right below the combustion port, and a ventilation gap is reserved between the outer edge of the rotary combustor and the combustion port; the ash chamber is provided with a primary air inlet.

Based on the above, the feed inlet is located rotatory combustor precession one side of burner port, the feed inlet is external to have the feeding storehouse.

Based on the above, the rotary combustor comprises a rotary drum, rotating shafts fixed at two axial ends of the rotary drum, a power mechanism for driving the rotating shafts to rotate and combustion grooves, the rotating shafts are mounted on two opposite side walls of the ash chamber through bearings, the combustion grooves are uniformly distributed on the outer peripheral surface of the rotary drum, and the combustion grooves on the upper portion of the rotary drum are matched with the combustion ports to form a combustion area.

Based on the above, a plurality of parallel parting strips are uniformly distributed on the surface of the rotary drum, and the combustion grooves are formed in the areas among the parting strips.

Based on the above, the combustion port is a throat-shaped opening formed at the bottom of the lower combustion chamber, and the throat-shaped opening has an inclined side wall.

Based on the above, be provided with the ash bucket in the ash chamber, the ash bucket is located under the rotatory combustor.

Based on the above, the height of the primary air inlet is higher than the ash bucket and lower than the bottom of the rotary combustor.

Based on the above, secondary air inlet device is including enclosing to establish the air inlet chamber in lower combustion chamber lateral wall and the roof outside, secondary air intake has been seted up on the air inlet chamber lateral wall, the air inlet chamber is in go up the combustion chamber with the position of lower combustion chamber intercommunication is provided with secondary air-out dish.

Based on the above, the top of the upper combustion chamber is provided with a smoke exhaust system.

The utility model discloses relative prior art has substantive characteristics and progress, specific theory, the utility model discloses utilize go up the burning chamber with the chamber of burning realizes the postcombustion down, wherein, and fuel is followed the feed inlet gets into down the burning chamber, and the air is followed an air intake is started, process the ash chamber gets into the burner port, and here is less because the relative fuel proportion of cold air, and fuel can not the incomplete combustion, has guaranteed that biomass fuel is not coked, and the combustible gas who burns the incomplete formation reenters go up the burning chamber, the air that secondary air inlet device got into makes combustible gas be in it is complete to go up the burning chamber burning, meanwhile, rotatory combustor can be with the lime-ash after burning through self rotation, in time clear up extremely ash chamber bottom, it has design science, easy clearance of lime-ash, ventilates smoothly, the advantage of difficult coking.

Furthermore, the feed inlet is arranged on one side of the rotary combustor screwed into the combustion port, fuel firstly falls on the screwing end of the rotary combustor after entering, and in the screwing-out process, the reaction time of the fuel is prolonged, and the combustion effect is improved.

Furthermore, each combustion groove forms an independent combustion area, so that the fuel is prevented from rolling back and forth in the reaction process; the arrangement of the necking-shaped opening can guide the fuel to slide to the middle part of the combustion opening, so that the fuel is prevented from being accumulated near the combustion opening; the ash hopper is convenient for cleaning ash from the ash chamber; the height of the primary air inlet is higher than the ash bucket and lower than the bottom of the rotary combustor, so that ash and slag are not blown up, and the entering air can be temporarily stored in a combustion groove at the bottom to be conveniently reacted with fuel.

Furthermore, the air inlet cavity is arranged around the outer sides of the side wall and the top wall of the lower combustion cavity, so that the space is saved, and the whole fireplace is more compact in layout; the smoke exhaust system is convenient for smoke exhaust.

Drawings

FIG. 1 is a schematic structural diagram of a semi-gasification anti-coking biomass particle fireplace of the utility model.

In the figure: 1. an upper combustion chamber; 2. a lower combustion chamber; 3. a rotary burner; 4. a feeding bin; 5. an ash chamber; 6. a smoke exhaust system; 7. an ash hopper; 8. an air inlet cavity; 9. biomass pellet fuel; 10. ash and slag; 21. an ignition bar; 22. a burner port; 23. a ventilation gap; 31. a combustion tank; 32. a parting strip; 51. a primary air inlet; 81. a secondary air inlet; 82. and (5) a secondary air outlet disc.

Detailed Description

The technical solution of the present invention will be described in further detail through the following embodiments.

As shown in figure 1, the semi-gasification anti-coking biomass particle fireplace comprises an upper combustion chamber 1, a lower combustion chamber 2, an ash chamber 5, a feeding bin 4, a smoke exhaust system 6 arranged at the top of the upper combustion chamber 1 and a rotary burner 3 rotatably arranged in the ash chamber 5, wherein the bottom of the upper combustion chamber 1 is communicated with the top of the lower combustion chamber 2, and a secondary air inlet device is arranged at the bottom of the upper combustion chamber 1 and used for supplementing air or oxygen; a feeding hole is formed in the side wall of the lower combustion chamber 2, and the feeding bin 4 is connected to the feeding hole so as to input biomass granular fuel 9 to the lower combustion chamber 2; the bottom of the lower combustion cavity 2 is provided with a combustion port 22, an ignition rod 21 is arranged in the combustion port 22 and used for ignition, the rotary combustor 3 is located under the combustion port 22, an air permeable gap 23 is reserved between the outer edge of the rotary combustor 3 and the combustion port 22, the ash chamber 5 is provided with a primary air inlet 51, and air enters the ash chamber 5 from the primary air inlet 51 and contacts with the biomass granular fuel 9 through the air permeable gap 23 in the combustion port 22.

The rotary combustor 3 specifically comprises a rotary drum, rotating shafts fixed at two axial ends of the rotary drum, a power mechanism for driving the rotating shafts to rotate and a combustion groove 31, the rotating shafts are installed on two opposite side walls of the ash chamber 5 through bearings, a plurality of parallel partition strips are uniformly distributed on the surface of the rotary drum, the combustion groove 31 is formed by the area between the partition strips, the combustion groove 31 on the upper portion of the rotary drum is matched with the combustion port 22 to form a combustion area, an independent combustion area is formed in each combustion groove 31, and the back and forth rolling in the fuel reaction process is avoided.

The working principle is as follows:

the biomass particle fuel 9 enters the lower combustion chamber 2 from the feeding bin 4 through the feeding hole, air enters the ash chamber 5 from the primary air inlet 51, enters the combustion port 22 through the ventilation gap 23, the ignition rod 21 ignites, because the proportion of cold air relative to fuel is small, the fuel can be incompletely combusted, so that the biomass particle fuel 9 is prevented from coking, combustible gas generated by incomplete combustion enters the upper combustion chamber 1, the secondary air inlet device supplies sufficient oxygen or air to the bottom of the upper combustion chamber 1, the combustible gas is completely combusted in the upper combustion chamber 1, meanwhile, the rotary combustor 3 can timely clean the combusted ash 10 to the bottom of the ash chamber 5 through self rotation, and smoke in the upper combustion chamber 1 is discharged through the smoke discharge system 6.

In order to improve the reaction effect in the lower combustion chamber 2, the feed inlet is positioned at one side of the rotary burner 3 screwed into the combustion port 22; when the biomass particle fuel cyclone is used, the biomass particle fuel 9 firstly falls on the screwing-in end of the rotary combustor 3, and the reaction time is prolonged in the screwing-out process, so that the combustion effect is improved.

In order to avoid fuel accumulation near the combustion port 22, the combustion port 22 is a throat-shaped opening formed at the bottom of the lower combustion chamber 2, the throat-shaped opening having an inclined side wall; in use, the converging mouth shaped opening may direct fuel to slide towards the middle of the combustion port 22, thereby avoiding accumulation near the combustion port 22.

In order to collect and clean the ash 10, an ash bucket 7 is also arranged in the ash chamber 5, and the ash bucket 7 is positioned right below the rotary combustor 3.

The height of the primary air inlet 51 is higher than that of the ash hopper 7 and lower than the bottom of the rotary combustor 3; when in use, on one hand, the ash 10 is not blown up, and on the other hand, the entering air can be temporarily stored in the combustion groove 31 at the bottom, so that the reaction with the biomass particle fuel 9 is facilitated.

In order to save space, the secondary air inlet device comprises an air inlet cavity 8 which is arranged on the outer side of the side wall and the top wall of the lower combustion cavity 2 in a surrounding mode, a secondary air inlet 81 is formed in the side wall of the air inlet cavity 8, and a secondary air outlet disc 82 is arranged at the position, communicated with the upper combustion cavity 1 and the lower combustion cavity 2, of the air inlet cavity 8.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims (9)

1. The utility model provides a semi-gasification anti-coking biomass particle fireplace which characterized in that: the device comprises an upper combustion chamber, a lower combustion chamber, an ash chamber and a rotary combustor rotatably arranged in the ash chamber, wherein the bottom of the upper combustion chamber is communicated with the top of the lower combustion chamber, and a secondary air inlet device is arranged at the bottom of the upper combustion chamber; a feeding hole is formed in the side wall of the lower combustion cavity, a combustion port is formed in the bottom of the lower combustion cavity, an ignition rod is arranged in the combustion port, the rotary combustor is located right below the combustion port, and a ventilation gap is reserved between the outer edge of the rotary combustor and the combustion port; the ash chamber is provided with a primary air inlet.

2. The semi-gasification anti-coking biomass particle fireplace of claim 1, wherein: the feed inlet is located rotatory combustor precession one side of burner port, the feed inlet is external to have the feeding storehouse.

3. The semi-gasification anti-coking biomass particle fireplace of claim 1 or 2, wherein: the rotary combustor comprises a rotary drum, rotating shafts fixed at two axial ends of the rotary drum, a power mechanism driving the rotating shafts to rotate and combustion grooves, the rotating shafts are mounted on two opposite side walls of the ash chamber through bearings, the combustion grooves are uniformly distributed on the outer peripheral surface of the rotary drum, and the combustion grooves in the upper portion of the rotary drum are matched with combustion ports to form a combustion area.

4. The semi-gasification anti-coking biomass particle fireplace of claim 3, wherein: the surface of the rotary drum is uniformly distributed with a plurality of parallel parting strips, and the area between the parting strips forms the combustion groove.

5. The semi-gasification anti-coking biomass particle fireplace of claim 4, wherein: the combustion port is a throat-shaped opening formed at the bottom of the lower combustion chamber, and the throat-shaped opening is provided with an inclined side wall.

6. The semi-gasification anti-coking biomass particle fireplace of claim 4 or 5, wherein: an ash bucket is arranged in the ash chamber and is positioned under the rotary combustor.

7. The semi-gasification anti-coking biomass particle fireplace of claim 6, wherein: the height of the primary air inlet is higher than the ash bucket and lower than the bottom of the rotary combustor.

8. A semi-gasification coke-resistant biomass particle fireplace as claimed in any one of claims 1, 2, 4, 5 and 7 wherein: the secondary air inlet device comprises an air inlet cavity which is arranged on the outer side of the lower combustion cavity side wall and the outer side of the top wall in a surrounding mode, a secondary air inlet is formed in the side wall of the air inlet cavity, and a secondary air outlet disc is arranged in the position where the upper combustion cavity and the lower combustion cavity are communicated.

9. The semi-gasification anti-coking biomass particle fireplace of claim 8, wherein: and a smoke exhaust system is arranged at the top of the upper combustion chamber.

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