CN113685803A

CN113685803A - Energy-saving combustion furnace with fire gathering and smoke burning functions

Info

Publication number: CN113685803A
Application number: CN202110945561.9A
Authority: CN
Inventors: 姚志勇; 姚志强
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-29
Filing date: 2021-08-11
Publication date: 2021-11-23

Abstract

The invention belongs to the field of combustion furnaces, particularly relates to a fire-gathering and smoke-burning energy-saving combustion furnace, and particularly has great advantages for combustion of fuels with low combustion value and high smoke quantity, such as combustible garbage and the like. A conical combustion chamber is arranged in the furnace wall, and the flame in the combustion chamber is subjected to forced physical constraint by the side wall of the conical combustion chamber, so that the highest-temperature flame (generally called as 'flame focus') is gathered at the smoke pipe mouth to form a high-temperature flame curtain, which is similar to the condenser principle. The unburned smoke particles in the combustion chamber can be completely combusted by the focused high-temperature flame curtain when passing through the smoke pipe opening. Meanwhile, a clean fuel combustion furnace is arranged near the smoke pipe opening, when insufficient combustion occurs in the hearth and dense smoke occurs, the clean fuel combustion furnace is started to completely combust the passing dense smoke so as to achieve the purpose of thoroughly eliminating smoke dust, and when the fuel in the hearth can be fully combusted, the clean fuel combustion furnace is closed.

Description

Energy-saving combustion furnace with fire gathering and smoke burning functions

Technical Field

The invention belongs to the field of combustion furnaces, and particularly relates to a fire-gathering and smoke-burning energy-saving combustion furnace which is suitable for combustion of all fuels, particularly combustion of low-fuel-value and high-smoke fuels such as combustible garbage and the like, and has great advantages.

Background

Traditional small and medium-sized combustion furnaces, particularly boilers, have the following common defects:

1, adding enough fuel at one time, and then gradually burning. The fuel in the bottom layer is burnt first, and the fuel in the upper layer is used as reserve fuel to be burnt, or vice versa. The part of the fuel to be burnt is always subjected to smoke generation due to the fact that the part of the fuel to be burnt is always in a smoldering state. When the boiler needs to turn over the fuel at regular time, the fuel to be burnt can not be fully combusted, so a great amount of dense smoke can be emitted immediately, which is also the main cause of pollution of the coal-fired and firewood-fired boiler.

2, the distance from the fuel on the fire grate of the traditional boiler to the smoke pipe opening of the top of the boiler is longer, which is usually designed for reducing the temperature at the smoke pipe opening, so the flame can not reach the smoke pipe opening; meanwhile, the design in the hearth does not consider the concentration of flame, so the smoke and dust can be eliminated only by improving the overall temperature in the hearth. The smoke and dust are burnt by increasing the integral temperature in the hearth, so that the energy consumption is low and the effect is very small.

3, the traditional combustion furnace, especially the heating boiler, because the fuel is added at regular time intervals for a long time, and the fuel is more added at one time, so that the excessive fuel reserves in the hearth are formed, so that when the excessive fuel is added or the fuel is stirred at regular time, the thick smoke can emit long-time thick smoke, and the thick smoke can not be eliminated by the high temperature in the hearth.

Disclosure of Invention

The present invention has been made in view of the above drawbacks of the prior art. The invention is to arrange a conical combustion chamber in the furnace wall. The conical combustion chamber has two advantages, one is to reduce the distance from the fuel on the fire grate to the smoke pipe opening, and the other is to focus the highest temperature flame (commonly referred to as 'flame focus') to the smoke pipe opening under the forced physical constraint of the side wall of the conical combustion chamber, similar to the condenser principle. Therefore, the flame temperature at the smoke pipe port is highest, and the high-temperature flame completely covers the smoke pipe port to form a high-temperature flame curtain. The unburned smoke particles in the combustion chamber can be completely combusted by the focused high-temperature flame curtain when passing through the smoke pipe opening. Meanwhile, a clean fuel combustion furnace is arranged near the smoke pipe opening, when insufficient combustion occurs in the hearth and dense smoke occurs, the clean fuel combustion furnace is started, the flame of the clean fuel can completely combust the passing dense smoke to achieve the purpose of thoroughly eliminating smoke dust, and when the fuel in the hearth can be sufficiently combusted, the clean fuel combustion furnace can be closed to achieve the purpose of saving energy.

The specific technical scheme adopted for realizing the invention is as follows: the combustion chamber is a conical cavity with a small upper part and a large lower part, the upper opening of the conical cavity is connected with the smoke tube, the periphery of the lower opening of the conical cavity is tightly attached to the furnace wall and is sealed, the conical cavity is arranged above the fire grate, the side edge of the conical cavity is provided with a conical heat collection wall, the conical heat collection wall separates the flame of the combustion chamber from the furnace wall, the conical heat collection wall forces the flame in the combustion chamber to shrink along a conical slope, so that the flame is finally gathered at the joint of the smoke tube and the combustion chamber, namely at the neck part of the smoke tube, and the flame burns above the smoke tube through the neck part of the smoke tube. The tapered cavity refers to a three-dimensional space with a large upper part and a small lower part and comprises any three-dimensional space structure with a large upper part and a small lower part and with side edges formed by straight lines and curved surfaces.

A stirring device is arranged in the combustion chamber close to the fire grate and consists of a motor, a rotating shaft and thorns, the axial direction of the rotating shaft is preferably vertical to the direction of a gap of the fire grate, and the thorns are driven to rotate by the rotation of the rotating shaft so as to turn the fuel in the combustion chamber and achieve the purpose of full combustion.

The upper part outside the combustion furnace is provided with a storage bin, the bottom of the storage bin is higher than the position of a grate in the combustion chamber, fuel is filled in the storage bin, the bottom of the storage bin is provided with a delivery pipe, a pipe orifice at the front end of the delivery pipe penetrates through the furnace wall and simultaneously penetrates through a conical heat collection wall to extend into the combustion chamber, the joint part of the bottom of the storage bin and the delivery pipe is provided with an automatic opening and closing device, the opening and closing device is opened, and the fuel in the storage bin enters the combustion chamber through the delivery pipe.

The secondary heat collection device is connected with the smoke tube in series, the secondary heat collection device is composed of a narrow-channel smoke tube, an upper smoke cavity, a lower smoke cavity and a liquid storage box, the narrow-channel smoke tube is composed of a long and narrow hollow cavity with two open ends, the upper smoke cavity and the lower smoke cavity are both flat and hollow cavities, the narrow-channel smoke tube is connected and communicated between the upper smoke cavity and the lower smoke cavity, the upper end opening of the upper smoke cavity is communicated with the smoke tube, the upper end opening of the narrow-channel smoke tube is inserted into the upper smoke cavity from the bottom of the upper smoke cavity, the upper end pipe orifice of the narrow-channel smoke tube is communicated with the upper smoke cavity, the lower end opening of the lower smoke cavity is communicated with the smoke tube, the lower end opening of the narrow-channel smoke tube is inserted into the top of the lower smoke cavity, the lower end pipe orifice of the narrow-channel smoke tube is communicated with the lower smoke cavity, and the liquid storage box side wall of the liquid storage box is wrapped along the periphery of the side walls of the upper smoke cavity and the lower smoke cavity. The liquid storage tank side wall, the bottom of going up the tobacco cavity and the upper portion of lower tobacco cavity constitute an inclosed cavity jointly, and this inclosed cavity is exactly the liquid storage tank, is provided with inlet and liquid outlet on the liquid storage tank, stores up full liquid in the liquid storage tank, the submergence of narrow passageway tobacco pipe is in liquid.

The clean gas furnace is connected in series on the smoke tube near the neck of the smoke tube, and comprises a gas fuel supply furnace and a gas fuel supply furnace which is supplied by liquid fuel and is finally heated and vaporized to burn at high temperature. The periphery of the clean gas furnace is sealed with the smoke tube, and the middle of the clean gas furnace is provided with a hollow gas channel so as to ensure that flame in the combustion chamber can continue to burn above the smoke tube through the hollow gas channel of the clean gas furnace. The flame generated by the clean gas furnace can be overlapped with the flame from the lower combustion chamber, and meanwhile, the high-temperature flame generated by the clean gas furnace can carry out secondary combustion on the smoke dust which is not burnt to be clean in the combustion chamber. The clean combustion furnace is provided with an ignition device, the side surface of a smoke tube at the clean gas furnace is provided with an observation port, and the clean gas furnace is supplied with clean fuel through a fuel tube.

A neck-surrounding type oxygen supply device is arranged at the position close to the neck of the smoke pipe. Enclose neck formula apparatus of oxygen supply includes fan, oxygen suppliment pipeline and encloses neck formula oxygen suppliment chamber. The neck-surrounding type oxygen supply cavity is an annular closed cavity tightly hooped on the smoke tube, a plurality of oxygen supply vent holes are uniformly distributed on the inner wall side of the annular closed cavity, and the oxygen supply vent holes are communicated with the inside of the smoke tube. On the neck formula oxygen suppliment chamber was connected to the fan through the oxygen suppliment pipeline, the fan carried neck formula oxygen suppliment chamber with the air through the oxygen suppliment pipeline, then entered into the tobacco pipe through the oxygen suppliment air vent in neck formula oxygen suppliment chamber in, reached secondary oxygen suppliment purpose.

Drawings

FIG. 1 is a schematic cross-sectional view of a conical heat-collecting wall type energy-saving combustion furnace with a heat-collecting wall and a heat-collecting wall, wherein the conical heat-collecting wall type energy-saving combustion furnace is a sandwich chamber composed of an inner wall of the heat-collecting wall and an outer wall of the heat-collecting wall.

FIG. 2 is a schematic cross-sectional view of a conical heat collecting wall type energy-saving combustion furnace with fire and smoke collecting function, which is composed of a single-layer conical wall and a heat conducting pipe attached to the wall.

FIG. 3 is a schematic perspective view of a secondary heat collecting device composed of a plurality of tubular narrow-passage flue tubes.

Fig. 4 is a schematic perspective view of a narrow-passage smoke tube formed by rectangular chambers communicated with each other.

FIG. 5 is a schematic cross-sectional view of the construction of the clean gas burner and the upper fire grate disposed at the smoke tube.

Fig. 6 is a schematic perspective view of a neck oxygen supply cavity.

FIG. 7 is a schematic perspective view of a tapered heat collecting wall.

FIG. 8 is a schematic cross-sectional view of a tapered heat collecting wall composed of a single tapered wall and heat pipes attached thereto.

Figure 9 is a schematic perspective view of the lower fire grate.

Figure 10 is a schematic perspective view of the upper fire grate.

In the figure, 1, a conical heat collecting wall, 2, a combustion chamber, 3, flame, 4, a furnace wall, 5, a smoke pipe, 6, a smoke pipe neck, 7, a conical cavity upper opening, 8, a conical cavity lower opening, 9, a liquid circulating device, 10, a liquid cavity, 11, liquid, 12, a pipeline, 13, a fire grate, 14, a stirring device, 15, a motor, 16, a rotating shaft, 17, a thorn, 18, fuel, 19, a storage bin, 20, a delivery pipe, 21, a switching device, 22, a secondary heat collecting device, 23, a narrow-channel smoke pipe, 24, an upper smoke cavity, 25, a lower smoke cavity, 26, a liquid storage box side wall, 27, a liquid storage box, 28, a clean gas furnace, 29, an ignition device, 30, an observation opening, 31, a neck type oxygen supply device, 32, an oxygen supply vent hole, 33, a fan, 34, an oxygen supply pipeline, 35, a neck type oxygen supply grate cavity, 36, lower smoke and fire through holes, 37, 38, an upper smoke and fire grate inner wall 39, an oxygen supply grate, 40. the heat collecting wall comprises an outer wall of a heat collecting wall, 41 single-layer conical walls, 42 heat conducting pipes, 43 liquid inlets, 44 liquid outlets and 45 fuel pipes.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

In the figure 1, the combustion chamber is a conical cavity with a small upper part and a big lower part, an upper opening 7 of the conical cavity is connected with a smoke pipe 5, the periphery of a lower opening 8 of the conical cavity is tightly attached to the furnace wall 4 and is closed, and the conical cavity is arranged above the fire grate. The tapered heat collecting wall 1 is arranged on the side edge of the tapered cavity, the tapered heat collecting wall 1 separates the flame 3 in the combustion chamber 2 from the furnace wall 4, and the tapered heat collecting wall 1 forces the flame 3 in the combustion chamber 2 to shrink along a tapered slope, so that the flame 3 is finally gathered at the joint of the smoke pipe 5 and the combustion chamber 2, namely, at the neck 6 of the smoke pipe. The flame 3 is combusted above the smoke tube 5 through the smoke tube neck 6, the conical heat collection wall 1 is provided with a liquid circulating device 9, and the liquid circulating device 9 consists of a liquid cavity 10, liquid 11 and a pipeline 12. The heat-absorbable liquid 11 circulates to absorb the heat of the combustion chamber 2 and supply heat to the outside. The tapered cavity refers to a three-dimensional space with a large upper part and a small lower part and comprises any three-dimensional space structure with a large upper part and a small lower part and with side edges formed by straight lines and curved surfaces.

A stirring device 14 is arranged in the combustion chamber 2 close to the fire grate 13, the stirring device 14 is composed of a motor 15, a rotating shaft 16 and thorns 17, the axial direction of the rotating shaft 16 is preferably vertical to the direction of a gap of the fire grate 13, and the thorns 17 are driven to rotate by the rotation of the rotating shaft 16 to turn over the fuel 18 in the combustion chamber 2, so that the purpose of full combustion is achieved.

A storage bin 19 is arranged above the outside of the combustion furnace, the bottom of the storage bin 19 is higher than the position of the fire grate 13 in the combustion chamber 2, fuel 18 is filled in the storage bin 19, a delivery pipe 20 is arranged at the bottom of the storage bin 19, and a pipe orifice at the front end of the delivery pipe 20 penetrates through the furnace wall 4 and simultaneously penetrates through the conical heat collection wall 1 to extend into the combustion chamber 1. An automatic opening and closing device 21 is arranged at the joint of the bottom of the storage bin 19 and the delivery pipe 20, the opening and closing device 21 is opened, and the fuel 18 in the storage bin 19 enters the combustion chamber 2 through the delivery pipe 20.

The smoke tube 5 is connected with a secondary heat collecting device 22 in series, and the secondary heat collecting device 22 consists of a narrow-channel smoke tube 23, an upper smoke cavity 24, a lower smoke cavity 25 and a liquid storage tank 27. The narrow passage smoke tube 23 is composed of a long and narrow hollow cavity with two open ends. The upper smoke cavity 24 and the lower smoke cavity 25 are both flat and hollow cavities, the narrow-channel smoke tube 23 is connected and communicated between the upper smoke cavity 24 and the lower smoke cavity 25, and the upper end opening of the upper smoke cavity 24 is communicated with the smoke tube 5. The upper end opening of the narrow-passage smoke tube 23 is inserted into the upper smoke cavity 24 from the bottom of the upper smoke cavity 24, the upper end opening of the narrow-passage smoke tube 23 is communicated with the upper smoke cavity 24, the lower end opening of the lower smoke cavity 25 is communicated with the smoke tube 5, the lower end opening of the narrow-passage smoke tube 23 is inserted into the top of the lower smoke cavity 25, and the lower end opening of the narrow-passage smoke tube 25 is communicated with the lower smoke cavity 25. Along the lateral wall periphery of last cigarette chamber 24 and lower cigarette chamber 25, the stock solution tank lateral wall 26 that the parcel has the stock solution case, and stock solution tank lateral wall 26, the bottom of last cigarette chamber 24 and the upper portion of lower cigarette chamber 25 constitute a confined cavity jointly, and this confined cavity is exactly stock solution tank 27. The liquid storage tank 27 is provided with a liquid inlet and a liquid outlet, the liquid storage tank is filled with liquid 11, and the narrow-channel smoke tube 23 is immersed in the liquid 11.

A clean gas furnace 28 is connected in series on the smoke tube 5 near the smoke tube neck 6. The clean gas furnace 28 includes a gas fuel-supplied furnace, and also includes a furnace supplied with liquid fuel, but is finally heated by high temperature to be vaporized for combustion. The periphery of the clean gas furnace 28 is sealed with the smoke pipe 5. The clean gas furnace 28 has a hollow gas channel in the middle to ensure that the flame 3 in the combustion chamber 2 can continue to burn above the smoke tube 5 through the hollow gas channel of the clean gas furnace 28. The flame 3 generated by the clean gas furnace 28 can overlap with the flame 3 from the lower combustion chamber 2, and the high temperature flame generated by the clean gas furnace 28 can burn out the uncombusted and clean smoke in the combustion chamber 2. The clean combustion furnace 28 is provided with an ignition device 29. An observation port 30 is arranged on the side surface of the smoke pipe 5 at the clean gas furnace 28. Clean gas furnace 28 is supplied with clean fuel through fuel line 45.

A neck-surrounding type oxygen supply device 31 is arranged at the position close to the position of the neck part 6 of the smoke tube. The neck-surrounding type oxygen supply device 31 comprises a fan 33, an oxygen supply pipeline 34 and a neck-surrounding type oxygen supply cavity 35. The neck-surrounding type oxygen supply cavity 35 is an annular closed cavity tightly hooped on the smoke tube 5, a plurality of oxygen supply vent holes 32 are uniformly distributed on the inner wall side of the annular closed cavity, and the oxygen supply vent holes 32 are communicated with the inside of the smoke tube 5. The neck-surrounding type oxygen supply cavity 35 is connected to the fan 33 through an oxygen supply pipeline 34, the fan 33 conveys air to the neck-surrounding type oxygen supply cavity 35 through the oxygen supply pipeline 34, and then the air enters the smoke tube 5 through the oxygen supply vent hole 32 of the neck-surrounding type oxygen supply cavity 35, so that the purpose of secondary oxygen supply is achieved.

The lower smoke fire grate 36 is arranged in the combustion chamber 2 close to the smoke tube 5. The lower smoke grate 36 is located near the neck 6 of the pipe but below the neck 6 of the pipe. The lower fire grate 36 is a flat porous structure, the plane of the lower fire grate is horizontally arranged, a plurality of uniform fire grate through holes 37 which are communicated up and down are arranged vertical to the plane of the lower fire grate 36, and the area of the plane of the lower fire grate 36 is equal to or larger than the pipe orifice of the smoke pipe 5. When the flame with the smoke dust in the combustion chamber 5 advances from the lower smoke and fire grate 36 to the upper smoke and fire tube 5, the flame can only pass through the smoke and fire grate through holes 37 of the lower smoke and fire grate 36, and at the moment, the lower smoke and fire grate 36 heated to a high temperature by the flame achieves the purposes of homogenizing the flame and further burning the smoke dust carried in the flame. The firework grate through holes 37 of the lower firework grate 36 comprise mesh holes formed by interweaving silk screens.

An upper smoke and fire grate 38 is arranged above the clean gas furnace 28 in the smoke pipe 5. The upper fire grate 38 is a flat porous structure, the plane of which is horizontally arranged, and a plurality of uniform fire grate through holes 37 which are communicated up and down are arranged on the plane vertical to the lower fire grate 36. The periphery of the upper smoke grate 38 is matched with the inner wall of the pipe orifice of the smoke pipe 5. The upper fire grate 38 can suppress the flame from the clean gas burner 28 below the upper fire grate to cover the fire grate through holes 37 of the upper fire grate 38, so that the flame with the smoke rising from the combustion chamber 2 can only pass through the fire grate through holes 37 of the upper fire grate 38, thereby burning the residual smoke. The firework grate through holes 37 of the upper firework grate 38 comprise mesh holes formed by interweaving silk screens.

The conical heat collecting wall 1 is a sandwich chamber formed by an inner wall 39 of the heat collecting wall and an outer wall 40 of the heat collecting wall, the periphery of the sandwich chamber is closed, the sandwich chamber is filled with liquid 11 to form a liquid cavity 10 of the conical heat collecting wall 1 according to the characteristic of claim 1, and the liquid 11 in the heated liquid cavity 10 is exchanged with a heat supply facility outside the furnace through an inlet and an outlet on the liquid cavity.

In fig. 2, fig. 2 is basically the same as fig. 1 in principle, except that the tapered heat collecting wall 1 in fig. 2 is composed of a single tapered wall and a heat conducting pipe attached thereto. The conical heat collecting wall 1 is a sandwich chamber formed by an inner wall 39 of the heat collecting wall and an outer wall 40 of the heat collecting wall, the periphery of the sandwich chamber is closed, the sandwich chamber is filled with liquid 11 to form a liquid cavity 10 of the conical heat collecting wall 1 according to the characteristic of claim 1, and the liquid 11 in the heated liquid cavity 10 is exchanged with a heat supply facility outside the furnace through an inlet and an outlet on the liquid cavity.

In fig. 3, fig. 3 is a schematic perspective view of a secondary heat collecting device composed of a plurality of tubular narrow-passage flue tubes. The flame and hot gas from the combustion chamber 2 to the smoke tube 5 rise to a plurality of tubular narrow passage smoke tubes through the lower smoke chamber 25, then enter the upper smoke chamber 24, and finally are discharged from the smoke tube 5 above. Because a plurality of tubular narrow-passage smoke pipes are soaked in the liquid storage tank 27, the liquid in the liquid storage tank 27 is heated, and the heated liquid outputs heat through the circulating device, so that secondary heat utilization is achieved.

In fig. 4, fig. 4 is a schematic perspective view of a narrow-passage smoke tube formed by rectangular interconnected chambers. The design idea is to increase the surface area of the side surface of the narrow-channel smoke pipe as much as possible, so that any similar modified design belongs to the protection scope of the invention.

In FIG. 5, FIG. 5 is a schematic cross-sectional view of the construction of the clean gas burner and the upper fire grate disposed at the smoke tube. A clean gas furnace 28 is connected in series on the smoke tube 5 near the smoke tube neck 6. The clean gas furnace 28 includes a gas fuel-supplied furnace, and also includes a furnace supplied with liquid fuel, but is finally heated by high temperature to be vaporized for combustion. The periphery of the clean gas furnace 28 is sealed with the smoke tube 5, and the middle of the clean gas furnace 28 is provided with a hollow gas passage, so that the flame 3 in the combustion chamber 2 can be continuously combusted above the smoke tube 5 through the hollow gas passage of the clean gas furnace 28. The flame 3 generated by the clean gas furnace 28 can be overlapped with the flame 3 from the lower combustion chamber 2; meanwhile, the high temperature flame generated by the clean gas furnace 28 can burn the uncombusted clean smoke in the combustion chamber 2 for the second time. The clean combustion furnace 28 is provided with an ignition device 29, which is not specifically described herein since it is a disclosed technology. An observation port 30 is arranged on the side surface of the smoke pipe 5 at the clean gas furnace 28. Clean gas furnace 28 is supplied with clean fuel through fuel line 45.

An upper smoke and fire grate 38 is arranged above the clean gas furnace 28 in the smoke tube 5, the upper smoke and fire grate 38 is of a flat porous structure, the plane of the upper smoke and fire grate is horizontally arranged, and a plurality of uniform smoke and fire grate through holes 37 which are communicated up and down are arranged vertical to the plane of the lower smoke and fire grate 36. The periphery of the upper smoke grate 38 is matched with the inner wall of the pipe orifice of the smoke pipe 5. The upper fire grate 38 can suppress the flame from the clean gas burner 28 below the upper fire grate to cover the fire grate through holes 37 of the upper fire grate 38, so that the flame with the smoke rising from the combustion chamber 2 can only pass through the fire grate through holes 37 of the upper fire grate 38, thereby burning the residual smoke. The firework grate through holes 37 of the upper firework grate 38 comprise mesh holes formed by interweaving silk screens.

Fig. 6 is a schematic perspective view of a neck oxygen supply cavity. A neck-surrounding type oxygen supply device 31 is arranged at the position close to the position of the neck part 6 of the smoke pipe, and the neck-surrounding type oxygen supply device 31 comprises a fan 33, an oxygen supply pipeline 34 and a neck-surrounding type oxygen supply cavity 35. The neck-surrounding type oxygen supply cavity 35 is an annular closed cavity tightly hooped on the smoke tube 5, a plurality of oxygen supply vent holes 32 are uniformly distributed on the inner wall side of the annular closed cavity, and the oxygen supply vent holes 32 are communicated with the inside of the smoke tube 5. The neck-surrounding type oxygen supply cavity 35 is connected to the fan 33 through an oxygen supply pipeline 34, the fan 33 conveys air to the neck-surrounding type oxygen supply cavity 35 through the oxygen supply pipeline 34, and then the air enters the smoke tube 5 through the oxygen supply vent hole 32 of the neck-surrounding type oxygen supply cavity 35, so that the purpose of secondary oxygen supply is achieved.

FIG. 7 is a schematic perspective view of a tapered heat collecting wall.

The upper mouth 7 of the conical cavity of the conical heat collecting wall is communicated with the smoke pipe mouth, the lower mouth 8 of the conical cavity is arranged above the fire grate, and the periphery of the lower mouth 8 of the conical cavity is tightly attached to the furnace wall 4 and is closed.

FIG. 8 is a schematic cross-sectional view of a tapered heat collecting wall composed of a single tapered wall and heat pipes attached thereto. The tapered heat collecting wall 1 is composed of a single-layer tapered wall 41 made of flat heat conducting materials and a heat conducting pipe 42 attached to the single-layer tapered wall 41. The heat pipe 42 is filled with the liquid 11, the heat pipe 42 is distributed on the single-layer tapered wall 41, and the heat pipe 42 is preferably arranged on the inner side of the single-layer tapered wall 41 to absorb as much flame heat as possible.

Figure 9 is a schematic perspective view of the lower fire grate. The upper fire grate 38 is a flat plate-like porous structure, the plane of which is arranged horizontally. A plurality of uniform firework grate through holes 37 which are communicated up and down are arranged vertical to the plane of the lower firework grate 36, and the periphery of the upper firework grate 38 is matched with the inner wall of the pipe orifice of the smoke pipe 5. The upper fire grate 38 can suppress the flame from the clean gas burner 28 below the upper fire grate to cover the fire grate through holes 37 of the upper fire grate 38, so that the flame with the smoke rising from the combustion chamber 2 can only pass through the fire grate through holes 37 of the upper fire grate 38, thereby burning the residual smoke. The firework grate through holes 37 of the upper firework grate 38 comprise mesh holes formed by interweaving silk screens.

Figure 10 is a schematic perspective view of the upper fire grate. The lower fire grate 36 is a flat plate-like porous structure, the plane of which is arranged horizontally. A plurality of uniform firework grate through holes 37 which are communicated up and down are arranged vertical to the plane of the lower firework grate 36, and the area of the plane of the lower firework grate 36 is equal to or larger than the pipe orifice of the smoke pipe 5. When the flame with the smoke dust in the combustion chamber 5 advances from the lower smoke and fire grate 36 to the upper smoke and fire tube 5, the flame can only pass through the smoke and fire grate through holes 37 of the lower smoke and fire grate 36, and at the moment, the lower smoke and fire grate 36 heated to a high temperature by the flame achieves the purposes of homogenizing the flame and further burning the smoke dust carried in the flame. The firework grate through holes 37 of the lower firework grate 36 comprise mesh holes formed by interweaving silk screens.

It should be noted that, for the structure and specific arrangement of the related prior art, such as the opening and closing device, the ignition device, the observation port, the blower, the oxygen supply pipeline, the liquid inlet, the liquid outlet, etc., no details are given since they do not belong to the patent features.

Claims

1. The utility model provides a gather fire and fire energy-conserving burning furnace of cigarette, by oven, combustion chamber, grate, slag chamber, feed bin, tobacco pipe, agitating unit, heat sink, apparatus of oxygen supply constitute, there is the bin gate on the combustion chamber, has the slag gate on the slag chamber, characterized by:

characterized in that the combustion chamber is a conical cavity with a small upper part and a big lower part, an upper opening (7) of the conical cavity is connected with the smoke tube (5), the periphery of a lower opening (8) of the conical cavity is tightly attached to the furnace wall (4) and is sealed, the conical cavity is arranged above the fire grate, a conical heat collection wall (1) is arranged on the side edge of the conical cavity, the conical heat collection wall (1) separates the flame (3) of the combustion chamber (2) from the furnace wall (4), the conical heat collection wall (1) forces the flame (3) in the combustion chamber (2) to shrink along a conical slope, so that the flame (3) is finally gathered at the joint of the smoke tube (5) and the combustion chamber (2), namely at the neck part (6) of the smoke tube, the flame (3) burns above the smoke tube (5) through the neck part (6) of the smoke tube, the conical heat collection wall (1) is provided with a liquid circulating device (9), and the liquid circulating device (9) consists of a liquid cavity (10), liquid (11) and a pipeline (12), the liquid (11) capable of absorbing heat circularly flows to absorb the heat of the combustion chamber (2) and supply heat to the outside, and the conical cavity refers to a three-dimensional space with a large upper part and a small lower part and comprises any three-dimensional space structure with a large upper part and a small lower part, wherein the side edge of the three-dimensional space structure consists of a straight line and a curved surface;

the combustion chamber (2) is internally provided with a stirring device (14) close to the fire grate (13), the stirring device (14) consists of a motor (15), a rotating shaft (16) and thorns (17), and the rotating shaft (16) rotates to drive the thorns (17) to rotate so as to turn over the fuel (18) in the combustion chamber (2) and achieve the purpose of full combustion;

the combustion furnace is characterized in that a storage bin (19) is arranged above the outside of the combustion furnace, the bottom of the storage bin (19) is higher than the position of a fire grate (13) in the combustion chamber (2), fuel (18) is filled in the storage bin (19), a delivery pipe (20) is arranged at the bottom of the storage bin (19), a pipe opening at the front end of the delivery pipe (20) penetrates through a furnace wall (4) and simultaneously penetrates through a conical heat collection wall (1) to extend into the combustion chamber (1), an automatic opening and closing device (21) is arranged at the connecting part of the bottom of the storage bin (19) and the delivery pipe (20), the opening and closing device (21) is opened, and the fuel (18) in the storage bin (19) enters the combustion chamber (2) through the delivery pipe (20);

is characterized in that a secondary heat collecting device (22) is connected in series on the smoke tube (5), the secondary heat collecting device (22) consists of a narrow-passage smoke tube (23), an upper smoke cavity (24), a lower smoke cavity (25) and a liquid storage tank (27), the narrow-passage smoke tube (23) consists of a long and narrow hollow cavity with two open ends, the upper smoke cavity (24) and the lower smoke cavity (25) are both flat and hollow cavities, the narrow-passage smoke tube (23) is connected and communicated between the upper smoke cavity (24) and the lower smoke cavity (25), the upper end opening of the upper smoke cavity (24) is communicated with the smoke tube (5), the upper end opening of the narrow-passage smoke tube (23) is inserted into the upper smoke cavity (24) from the bottom of the upper smoke cavity (24), the upper end opening of the narrow-passage smoke tube (23) is communicated with the upper smoke cavity (24), the lower end opening of the lower smoke cavity (25) is communicated with the smoke tube (5), and the lower end opening of the narrow-passage smoke tube (23) is inserted into the top of the lower smoke cavity (25), the lower end pipe orifice of the narrow-channel smoke pipe (25) is communicated with the lower smoke cavity (25), the liquid storage tank side wall (26) of the liquid storage tank is wrapped along the peripheries of the side walls of the upper smoke cavity (24) and the lower smoke cavity (25), the liquid storage tank side wall (26), the bottom of the upper smoke cavity (24) and the upper part of the lower smoke cavity (25) jointly form a closed cavity, the closed cavity is the liquid storage tank (27), a liquid inlet and a liquid outlet are formed in the liquid storage tank (27), liquid (11) is stored in the liquid storage tank, and the narrow-channel smoke pipe (23) is immersed in the liquid (11);

is characterized in that a clean gas furnace (28) is connected in series on the smoke tube (5) near the smoke tube neck (6), the clean gas furnace (28) comprises a gas furnace supplied by gas fuel and a gas furnace supplied by liquid fuel and finally heated and vaporized to burn at high temperature, the periphery of the clean gas furnace (28) is sealed with the smoke tube (5), a hollow gas passage is arranged in the clean gas furnace (28) to ensure that the flame (3) in the combustion chamber (2) can continue to burn above the smoke tube (5) through the hollow gas passage of the clean gas furnace (28), the flame (3) generated by the clean gas furnace (28) can be overlapped with the flame (3) from the combustion chamber (2) below, meanwhile, the high-temperature flame generated by the clean gas furnace (28) can completely burn the clean smoke dust in the combustion chamber (2), and an ignition device (29) is arranged on the clean gas furnace (28), an observation port (30) is arranged on the side surface of the smoke pipe (5) at the clean gas furnace (28), and the clean gas furnace (28) supplies clean fuel through a fuel pipe (45);

six characteristics are provided with at tobacco pipe neck (6) position department of being close and enclose neck formula oxygen suppliment device (31), including fan (33), oxygen supply pipeline (34) and enclose neck formula oxygen suppliment chamber (35), be the ring-shaped closed cavity of lock hoop on tobacco pipe (5), a plurality of oxygen suppliment air vents (32) are being linked together to annular closed cavity inner wall side evenly distributed, inside this oxygen suppliment air vent (32) communicate tobacco pipe (5), enclose neck formula oxygen suppliment chamber (35) are connected to on fan (33) through oxygen suppliment pipeline (34), fan (33) are carried the air through oxygen suppliment pipeline (34) and are enclosed neck formula oxygen suppliment chamber (35), then enter into tobacco pipe (5) through oxygen suppliment air vent (32) of enclosing neck formula oxygen suppliment chamber (35) in, reach secondary oxygen suppliment purpose.

2. The fire-gathering and energy-saving combustion furnace as claimed in claim 1, wherein a lower fire grate (36) is arranged in the combustion chamber (2) near the flue tube (5), the lower fire grate (36) is close to the neck (6) of the flue tube, but below the neck (6) of the flue tube, the lower fire grate (36) is of a flat plate-shaped porous structure, the plane of the lower fire grate is horizontally arranged, a plurality of uniform fire grate through holes (37) which are vertically communicated are arranged perpendicular to the plane of the lower fire grate (36), and the plane area of the lower fire grate (36) is equal to or larger than the pipe orifice of the flue tube (5); when the flame with smoke dust in the combustion chamber (5) advances from the lower smoke and fire grate (36) to the upper smoke and fire tube (5), the flame can only pass through the smoke and fire grate through holes (37) of the lower smoke and fire grate (36), and at the moment, the lower smoke and fire grate (36) heated to a high temperature by the flame plays the roles of homogenizing the flame and further burning the smoke dust carried in the flame; the firework grate through holes (37) of the lower firework grate (36) comprise mesh holes formed by interweaving wire nets.

3. The fire-gathering and energy-saving combustion furnace as claimed in the claim, wherein the upper fire grate (38) is arranged above the clean gas furnace (28) in the smoke tube (5), the upper fire grate (38) is of a flat plate-shaped porous structure, the plane of the upper fire grate is horizontally arranged, a plurality of uniform fire grate through holes (37) which are communicated up and down are arranged on the plane vertical to the lower fire grate (36), and the periphery of the upper fire grate (38) is inosculated with the inner wall of the mouth of the smoke tube (5); the upper smoke and fire grate (38) can press the flame from the clean gas furnace (28) below the upper smoke and fire grate to cover the smoke and fire grate through holes (37) of the upper smoke and fire grate (38), so that the flame with smoke dust rising from the combustion chamber (2) can only pass through the smoke and fire grate through holes (37) of the upper smoke and fire grate (38), and the residual smoke dust is completely combusted; the firework grate through holes (37) of the upper firework grate (38) comprise mesh holes formed by interweaving wire nets.

4. A fire-gathering and energy-saving combustion furnace as claimed in claim 1, wherein said tapered heat collecting wall (1) is a sandwich chamber formed by an inner wall (39) of the heat collecting wall and an outer wall (40) of the heat collecting wall, the periphery of the sandwich chamber is closed, the sandwich chamber is filled with liquid (11) to form a liquid chamber (10) of said tapered heat collecting wall (1) as claimed in claim 1, and the liquid (11) in the heated liquid chamber (10) is exchanged with a heat supply facility outside the furnace through an inlet and an outlet thereof.

5. A fire and smoke collecting energy saving combustion furnace as claimed in claim 1, wherein said tapered heat collecting wall (1) is composed of a single tapered wall (41) made of flat heat conducting material and a heat conducting pipe (42) attached to said single tapered wall (41), said heat conducting pipe (42) is filled with liquid (11), said heat conducting pipe (42) is provided with a liquid inlet (43) and a liquid outlet (44), said heat conducting pipe (42) is distributed on said single tapered wall (41) to absorb flame heat as much as possible, said heat conducting pipe (42) is said liquid chamber (10).