CN211372749U - Biomass hot blast stove with special arrangement precombustion chamber - Google Patents

Abstract

The utility model discloses a living beings hot-blast furnace with special arrangement precombustion chamber, including hot-blast furnace body, precombustion chamber body, motor and fan, the bottom of hot-blast furnace body is provided with the fire grate face, the right side of precombustion chamber body is connected with the combustion chamber, the rear of hot-blast furnace body is fixed with the casing, the gas filling hole has been seted up at the rear of casing, the embedded motor of installing of left side rear surface of casing, the external fixed surface of connecting axle has the adsorption plate, the left side the place ahead of fan is connected with the defeated tuber pipe. This living beings hot-blast furnace with special arrangement precombustion chamber adopts the flue gas of hot-blast furnace body afterbody to make the biomass fuel oxygen deficiency burning in the precombustion chamber body, is favorable to appearing a large amount of volatilizing and combustible gas in the combustion process, and the control of cooperation precombustion chamber body internal temperature makes biomass fuel can not reach the temperature that produces coking and slagging scorification when burning, has successfully solved the problem of easy coking of biomass fuel when burning and slagging scorification.

Description

Biomass hot blast stove with special arrangement precombustion chamber

Technical Field

The utility model relates to a biomass fuel's the relevant technical field of hot-blast furnace, specifically be a living beings hot-blast furnace with special arrangement precombustion chamber.

Background

The hot blast stove is a thermal power machine, the hot blast stove of biomass fuel is an environment-friendly device which adopts a counter-current combustion mode to enable hot flue gas to flow through the surface of wet fuel, promotes the drying and the water vapor delivery of the fuel, realizes the promotion of the fuel combustion, reduces the generation of black smoke and dries objects, but the existing biomass hot blast stove has certain defects.

The existing biomass hot blast stove generally adopts a method of directly burning biomass fuel, has large heat loss, low combustion efficiency, easy occurrence of coking, slagging and insufficient combustion in the combustion process, and high dust content in flue gas generated by combustion, and is easy to cause environmental pollution.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a living beings hot-blast furnace with special arrangement precombustion chamber to propose the method that current living beings hot-blast furnace generally adopted direct combustion biomass fuel among the above-mentioned background art of solution, heat loss is big, and combustion efficiency is low, the easy problem that appears coking, slagging scorification and the insufficient phenomenon of burning.

In order to achieve the above object, the utility model provides a following technical scheme: a biomass hot blast stove with a specially arranged precombustion chamber comprises a hot blast stove body, a precombustion chamber body, a motor and a fan, wherein a grate surface is arranged at the bottom of the hot blast stove body, the precombustion chamber body is arranged on the left side inside the hot blast stove body, a smoke outlet is formed in the right side of the precombustion chamber body, a combustion chamber is connected to the right side of the precombustion chamber body, a secondary air pipe is arranged inside the combustion chamber, a settling chamber is connected to the right side of the combustion chamber, a shell is fixed at the rear of the hot blast stove body, a filter screen is embedded at the rear of the shell, an air filling hole is formed in the rear of the shell and is positioned on the left side of the filter screen, the motor is embedded in the rear surface of the left side of the shell, a connecting shaft is arranged on the motor, an adsorption plate, and a fan is installed on the left side of the shell, an air conveying pipe is connected to the front of the left side of the fan, and the right end of the air conveying pipe is connected with the left side surface of the hot blast stove body.

Preferably, the precombustion chamber body and the smoke outlet are of an integrated structure, and 2 groups of smoke outlets are symmetrically arranged around the central point of the precombustion chamber body.

Preferably, the length of the combustion chamber is greater than that of the precombustion chamber body, and the secondary air pipes are symmetrically arranged inside the combustion chamber.

Preferably, the filter screen and the shell form a detachable mounting structure in clamping connection, and the length of the filter screen is greater than that of the adsorption plate.

Preferably, the connecting shaft is rotatably connected with the shell, and the length of the shell is smaller than that of the hot blast stove body.

Preferably, the adsorption plates are arranged on the outer surface of the connecting shaft at equal angles, and the adsorption plates are honeycomb ceramic plates.

Compared with the prior art, the beneficial effects of the utility model are that: the biomass hot blast stove with the special arrangement precombustion chamber,

1. the biomass fuel in the pre-combustion chamber body is subjected to anoxic combustion by adopting the flue gas at the tail part of the hot blast stove body, so that a large amount of volatile and combustible gas can be separated out in the combustion process, and the biomass fuel cannot reach the temperature for generating coking and slagging during combustion by matching with the control of the internal temperature of the pre-combustion chamber body, so that the problems of easy coking and slagging of the biomass fuel during combustion are successfully solved;

2. the smoke at the tail part of the hot blast stove body is adsorbed into the shell through the fan and then is guided to the interior of the precombustion chamber body through the air delivery pipe, so that the circular flow of the gas is realized, the gas after anoxic combustion in the precombustion chamber body enters the combustion chamber from the smoke outlet, and is completely and fully combusted after oxygen supply of the secondary air pipe, and the heat efficiency of the hot blast stove body is greatly improved;

3. casing internally mounted has the filter screen, purifies the flue gas of hot-blast furnace body afterbody through the filter screen, has reduced the content of impurity in the flue gas, and the filter screen left side is provided with the adsorption plate, drives the adsorption plate through the motor and rotates inside the casing, is convenient for adsorb the unable filterable material in the flue gas, makes the leading-in flue gas purity of precombustion chamber body obtain promoting.

Drawings

FIG. 1 is a schematic front sectional view of the present invention;

FIG. 2 is a schematic view of the top view structure of the hot blast stove body and the shell;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 1 according to the present invention;

fig. 4 is a schematic view of the structure of the connecting shaft and the adsorption plate in front view.

In the figure: 1. a hot blast stove body; 2. a grate surface; 3. a prechamber body; 4. a smoke outlet; 5. a combustion chamber; 6. a secondary air duct; 7. a settling chamber; 8. a housing; 9. a filter screen; 10. air holes are added; 11. a motor; 12. a connecting shaft; 13. an adsorption plate; 14. a fan; 15. a wind conveying pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a biomass hot blast stove with a specially arranged precombustion chamber comprises a hot blast stove body 1, a fire grate surface 2, a precombustion chamber body 3, a smoke outlet 4, a combustion chamber 5, a secondary air pipe 6, a settling chamber 7, a shell 8, a filter screen 9, an air adding hole 10, a motor 11, a connecting shaft 12, an adsorption plate 13, a fan 14 and an air conveying pipe 15, wherein the fire grate surface 2 is arranged at the bottom of the hot blast stove body 1, the precombustion chamber body 3 is arranged on the left side of the inside of the hot blast stove body 1, the smoke outlet 4 is formed in the right side of the precombustion chamber body 3, the combustion chamber 5 is connected to the right side of the precombustion chamber body 3, the secondary air pipe 6 is arranged in the combustion chamber 5, the settling chamber 7 is connected to the right side of the combustion chamber 5, the shell 8 is fixed at the rear of the hot blast stove body 1, the filter screen 9 is installed behind the shell 8, a motor 11 is embedded in the rear surface of the left side of the shell 8, a connecting shaft 12 is installed on the motor 11, an adsorption plate 13 is fixed on the outer surface of the connecting shaft 12, the front end of the connecting shaft 12 is connected with the inner wall surface of the shell 8, a fan 14 is installed on the left side of the shell 8, an air delivery pipe 15 is connected in front of the left side of the fan 14, and the right end of the air delivery pipe 15 is connected with the left side surface of the hot blast stove body 1;

the precombustion chamber body 3 and the smoke outlet 4 are of an integrated structure, 2 groups of smoke outlets 4 are symmetrically arranged about the central point of the precombustion chamber body 3, and the symmetrically arranged smoke outlets 4 are beneficial to a large amount of volatile and combustible gas separated out from the precombustion chamber body 3 to enter the combustion chamber 5 and improve the combustion efficiency of the hot blast stove body 1;

the length of the combustion chamber 5 is greater than that of the precombustion chamber body 3, and the secondary air pipes 6 are symmetrically arranged inside the combustion chamber 5, so that oxygen can be conveniently supplied into the combustion chamber 5 through the secondary air pipes 6, the gas in the combustion chamber 5 can be completely and fully combusted, and the heat efficiency of the hot blast stove body 1 is improved;

the filter screen 9 and the shell 8 form a disassembly and assembly structure in clamping connection, the length of the filter screen 9 is larger than that of the adsorption plate 13, the filter screen 9 is convenient to clean and replace by disassembling the filter screen 9, the purification effect of the filter screen 9 is improved, the smoke entering the tail part of the hot blast stove body 1 in the shell 8 is preliminarily purified by the filter screen 9, and the content of impurities in the smoke is reduced;

the connecting shaft 12 is rotatably connected with the shell 8, the length of the shell 8 is smaller than that of the hot blast stove body 1, and the adsorption plate 13 is driven by the connecting shaft 12 to rotate in the shell 8, so that flue gas and a catalyst added into the gas filling hole 10 can be mixed more fully;

the adsorption plate 13 is arranged on the outer surface of the connecting shaft 12 at equal angles, the adsorption plate 13 is arranged into a honeycomb ceramic plate, the honeycomb ceramic plate has better thermal shock resistance, substances which cannot be filtered in the flue gas are adsorbed again through the adsorption plate 13, and the purity of the flue gas guided into the prechamber body 3 is improved.

The working principle is as follows: when the biomass hot blast stove with the special arrangement precombustion chamber is used, as shown in the figure 1-4, biomass briquette fuel falls into the grate surface 2 through a feeding mechanism, then a fan 14 and a motor 11 are started, smoke at the tail part of the hot blast stove body 1 is pumped into a shell 8 and then is guided into the precombustion chamber body 3 through an air conveying pipe 15, so that the biomass briquette fuel in the precombustion chamber body 3 is subjected to anoxic combustion, the combustion mode is favorable for separating out a large amount of volatile and combustible gas in the combustion process, the temperature is controlled below 650 ℃ in cooperation with the control of the internal temperature of the precombustion chamber body 3, the temperature for generating coking and slagging can not be reached when the biomass briquette fuel is combusted in the precombustion chamber body 3, the problems that the biomass briquette fuel is easy to coke and slagging in the combustion process are successfully solved, the gas after the anoxic combustion in the precombustion chamber body 3 enters the combustion chamber 5 from the smoke, the biomass briquette is completely and fully combusted after being supplied with oxygen by a secondary air pipe 6 in the combustion chamber 5, so that the heat efficiency of the hot blast stove body 1 is greatly improved, the fully combusted gas enters a settling chamber 7, the utilization efficiency of the biomass briquette is improved by specially arranging a combustion structure of the precombustion chamber body 3, the original dust exhaust concentration of the hot blast stove body 1 is reduced, and the energy-saving and environment-friendly effects are realized;

the casing 8 is internally provided with a filter screen 9, the flue gas entering the tail part of the hot blast stove body 1 in the casing 8 is firstly primarily purified by the filter screen 9, the content of impurities in the flue gas is reduced, the purified flue gas flows to the left side of the filter screen 9, an adsorption plate 13 is driven by a motor 11 to rotate in the casing 8, the non-filterable substances in the flue gas are conveniently adsorbed again, the purity of the flue gas led into the prechamber body 3 is improved, when the filter screen 9 needs to be cleaned, the filter screen 9 is pulled backwards, the filter screen 9 is separated from the inside of the casing 8, the filter screen 9 can be cleaned and maintained, after the cleaning is finished, the flue gas is downwards inserted into the casing 8, the installation between the casing 8 and the filter screen 9 can be finished, the filter screen 9 is cleaned regularly, the purification effect of the filter screen 9 is improved, and an air adding hole 10 is arranged, the gas catalyst can be added to the flue gas through the gas adding hole 10, and meanwhile, the rotation of the connecting shaft 12 and the adsorption plate 13 is utilized, so that the flue gas and the catalyst are mixed more fully, and the overall practicability is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a living beings hot-blast furnace with special arrangement precombustion chamber, includes hot-blast furnace body (1), precombustion chamber body (3), motor (11) and fan (14), its characterized in that: the hot blast stove comprises a hot blast stove body (1), a fire grate surface (2) is arranged at the bottom of the hot blast stove body (1), a precombustion chamber body (3) is arranged on the left side of the interior of the hot blast stove body (1), smoke outlets (4) are formed in the right side of the precombustion chamber body (3), a combustion chamber (5) is connected to the right side of the precombustion chamber body (3), a secondary air pipe (6) is arranged inside the combustion chamber (5), a settling chamber (7) is connected to the right side of the combustion chamber (5), a shell (8) is fixed at the rear of the hot blast stove body (1), a filter screen (9) is embedded at the rear of the shell (8), an air adding hole (10) is formed in the rear of the shell (8), the air adding hole (10) is located on the left side of the filter screen (9), a motor (11) is embedded at, the outer fixed surface of connecting axle (12) has adsorption plate (13), and the front end of connecting axle (12) and the inner wall surface interconnect of casing (8) to fan (14) are installed in the left side of casing (8), the left side the place ahead of fan (14) is connected with defeated tuber pipe (15), and the right-hand member of defeated tuber pipe (15) and the left side surface interconnect of hot-blast furnace body (1).

2. A biomass stove with a specially arranged prechamber according to claim 1, characterised in that: the precombustion chamber body (3) and the smoke outlet (4) are of an integrated structure, and 2 groups of smoke outlets (4) are symmetrically arranged around the central point of the precombustion chamber body (3).

3. A biomass stove with a specially arranged prechamber according to claim 1, characterised in that: the length of the combustion chamber (5) is greater than that of the precombustion chamber body (3), and secondary air pipes (6) are symmetrically arranged inside the combustion chamber (5).

4. A biomass stove with a specially arranged prechamber according to claim 1, characterised in that: the filter screen (9) and the shell (8) form a clamping connection dismounting and mounting structure, and the length of the filter screen (9) is larger than that of the adsorption plate (13).

5. A biomass stove with a specially arranged prechamber according to claim 1, characterised in that: the connecting shaft (12) is rotatably connected with the shell (8), and the length of the shell (8) is smaller than that of the hot blast stove body (1).

6. A biomass stove with a specially arranged prechamber according to claim 1, characterised in that: the adsorption plates (13) are arranged on the outer surface of the connecting shaft (12) at equal angles, and the adsorption plates (13) are honeycomb ceramic plates.

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