WO2017050270A1

WO2017050270A1 - Combustion-furnace body and combustion furnace

Info

Publication number: WO2017050270A1
Application number: PCT/CN2016/099843
Authority: WO
Inventors: 税英; 赵雅莉
Original assignee: 成都原能科技有限责任公司
Priority date: 2015-09-23
Filing date: 2016-09-23
Publication date: 2017-03-30
Also published as: CN105114987A

Abstract

A combustion-furnace body and a combustion furnace. The combustion-furnace body comprises an upper cover (102) and a furnace main body (101) provided with a combustion cavity. The upper cover (102) is arranged above the furnace main body (101). the combustion cavity has an upward opening. A channel communicated with the combustion cavity is arranged in the middle of the upper cover (102). The side wall of the furnace main body (101) comprises an upper side wall and a lower side wall along a vertical direction. The lower side wall of the furnace main body (101) is provided with first stage air guide holes (107, 108) through which air is pumped in. The side wall of the upper cover (102)is provided with a second stage air guide hole (106). The first stage air guide holes (107, 108) and the second stage air guide hole (106) are all through holes. The combustion furnace comprises a furnace head assembly (300), a combustion furnace isolation housing (200), a combustion furnace air distribution system (500), a combustion furnace support device (400) and the combustion-furnace body. The combustion furnace allows fuel to burn in a staged way so as to be slow in exothermic process and complete in combustion, thereby improving the heat utilization rate.

Description

Burning furnace body and burning furnace

Technical field

The present invention relates to the field of combustion furnaces, and more particularly to a furnace body and a combustion furnace.

Background technique

At the moment, outdoor winds are becoming more and more popular. Mountain climbing, adventure, and play are often indispensable. Wild picnics increase the fun of outdoor activities. People can eliminate barriers and enhance their feelings in the process of preparing meals.

Cooking usually requires high temperature heating, and the high temperature that is easily available outdoors is the flame. In the process of wild donkeys, you can make a simple cooktop by digging holes or stacking bricks, and burn the heat by igniting branches or other combustibles. In a windy environment, the flame is also easily blown out by the wind or triggers a mountain fire.

In this context, portable combustion furnaces have appeared on the market. The portable burner is small and easy to carry, eliminating the need to make a cooktop.

However, the inventors found in the research that the portable combustion furnace in the prior art has insufficient heat power and low heat utilization efficiency due to its small size, and it takes time and effort to use the existing portable combustion furnace for heating; and alcohol and liquefied gas are used. Although flammable dangerous goods are used as fuel, although they have strong firepower, they are very unsafe and not environmentally friendly during the carrying process.

Summary of the invention

It is an object of the present invention to provide a burner furnace body and a combustion furnace to improve the heat utilization efficiency of the existing combustion furnace.

The present invention is implemented as follows:

A burner furnace body comprising a top cover of a combustion furnace and a body body with a combustion cavity, the upper cover of the combustion furnace being disposed above the body of the furnace, the opening of the combustion cavity facing upward, a middle portion of the upper cover of the combustion furnace is provided with a passage communicating with the combustion cavity, and a side wall of the furnace body body is vertically divided into an upper side wall and a lower side wall, and the lower side wall of the furnace body is disposed There is a primary air vent for introducing air, and a side wall of the upper cover of the combustion furnace is provided with a secondary air vent, and the primary air vent and the second air vent are both through holes.

Through the first-stage bleed holes provided on the lower side wall of the furnace body and the secondary bleed holes provided on the upper cover of the furnace, when the combustion occurs in the combustion furnace, the oxygen at the bottom of the furnace and the furnace mouth is more sufficient, and the middle portion of the furnace body In a relatively oxygen-deficient environment. The combustibles burn in the furnace, sink into the furnace, enter the air at the bottom, burn the combustibles, and dissipate heat. The combustibles are mainly subjected to the first stage combustion at the bottom of the furnace body and the middle portion of the furnace body, a part of which is completely burned, and a part of which generates combustible gas, such as carbon monoxide, and then burns in the upper cover area of the combustion furnace and the newly entered air. The entire exothermic process is slow and can greatly increase the heat utilization rate. The temperature accumulated by this type of combustion is higher than that of direct combustion. Due to the small area of the incoming air, the heat is emitted more slowly, which is more conducive to the rising temperature, so that the incoming air becomes a high-temperature gas during the process of entering, and the water in the combustible can be evaporated to reduce the branches under the humid environment. Black smoke from fuel.

Further, the first-stage bleed hole includes a first bleed hole, and air entering the combustion cavity through the first bleed hole flows in a ring shape or a spiral shape.

The center line of the first air inlet hole is different from the center line of the furnace body, so that the air entering the body of the furnace is not directly blown toward the center of the furnace body, but has a component along the circumferential direction of the furnace body. After the air introduced by the plurality of first bleed holes enters the combustion cavity, the airflow of the combustion cavity is spirally increased, so that the flame also spirals up with the airflow instead of directly rising upward.

Further, the lower sidewall is provided with at least one channel recessed into the interior of the combustion cavity, the channel is vertically disposed, and the first air vent is disposed on a sidewall of the channel. And the axial line of the first air inlet hole is different from the center line of the furnace body, and the channel has a cross-sectional shape of a “V” shape or an arc shape.

A channel is formed along the sidewall of the body of the furnace body to recess the interior of the combustion cavity, so that after a large amount of combustibles are added to the interior of the furnace body, a small gap is formed in the vicinity of the recessed channel, and the space can be continued through the gap. A particulate flammable substance is added to the combustion cavity. At the same time, the provision of a groove recessed into the interior facilitates the provision of the first bleed air hole, thereby facilitating the introduction of a spiral upward or annular air flow.

Further, the channels are at least two and rotationally symmetric about a centerline of the combustion cavity.

The uniform distribution of the channels facilitates the airflow introduced by the first air vents on the channel to form a spiral airflow, which drives the flame to spirally rise and raise the temperature inside the furnace.

Further, the primary bleed hole further includes a second bleed hole, a center line of the second bleed hole is coplanar with a center line of the combustion cavity, and the second bleed hole is disposed at the lower sidewall on.

The second bleed hole cooperates with the first bleed hole to increase the amount of intake air at the bottom of the furnace body, thereby avoiding the flame in the combustion cavity being extinguished due to insufficient intake air amount of the first bleed air hole.

Further, the upper cover of the combustion furnace has a truncated cone shape, and a top inner diameter of the upper cover of the combustion furnace is smaller than a bottom inner diameter, and a bottom of the upper cover of the combustion furnace is connected to a top of the upper side wall.

The upper cover of the combustion furnace whose inner diameter gradually increases from top to bottom has a cross-sectional area of the top passage smaller than the cross-sectional area of the bottom passage, and the flow velocity of the fluid in a region with a small cross-sectional area of the passage when the flow rate is constant during the flow of the fluid It is larger than the flow rate in a region where the cross-sectional area of the channel is large. At the first level When the intake air volume of the air inlet hole and the secondary air inlet hole is constant, the rising speed of the flame in the body of the furnace body is small, and the speed suddenly increases when the upper cover of the combustion furnace is narrowed, and the flame can be taken out to orient the heat. Drain onto the object to be heated.

Further, the top of the upper cover of the combustion furnace is a blanking table, and the blanking table is a funnel-shaped structure whose inner diameter gradually decreases from the top to the bottom.

The blanking table is advantageous for introducing the combustion raw material which should be scattered on the upper cover of the burning furnace into the combustion cavity during the filling, so that the user can add fuel to the combustion cavity.

Further, the invention further includes an insulated tube and a heat insulating cover, the top wall of the heat insulating tube is connected to the upper cover of the burning furnace, and the bottom of the heat insulating tube is connected with the heat insulating cover, the heat insulating cover a gap is disposed between the body of the furnace body and the body of the furnace body, and the heat insulation cover and the body of the furnace body are connected by a heat insulation bracket, and the heat insulation tube and the furnace An air intake cavity is formed between the body bodies, the heat insulation cover is provided with an air inlet opening for placing an air intake fan, the air intake fan brings air into the air intake cavity, and allows air to pass through A primary bleed hole and/or the secondary bleed hole enters the combustion cavity.

The heat insulation tube is used to reduce the loss of heat, and the air inlet cavity formed between the heat insulation tube and the body of the furnace is convenient for the air driven by the air inlet fan to enter the combustion from the air intake cavity through the first air inlet hole and the second air inlet hole. Cavity. The air gradually becomes a high-temperature gas in the air intake cavity, and the high-temperature gas is more easily mixed with the combustible gas in the combustion furnace to burn. By adjusting the power of the intake fan, it is possible to control the oxygen content in the combustion cavity and the rate at which the combustion heats up.

A combustion furnace comprising a burner assembly, a combustion furnace isolation casing, a combustion furnace air distribution system, a combustion furnace support device, and a combustion furnace body according to any one of the above, wherein the combustion furnace body is disposed in the combustion furnace In the isolation casing, a top of the burner isolation casing is provided with a fire opening, The burner assembly is disposed above the fire opening, the burner assembly includes a fire cover and a pan holder, the fire cover is coupled to the burner isolation casing, and the pan is disposed on the fire cover The bottom of the combustion furnace isolation casing is fixedly connected to the bottom cover, the bottom cover is provided with a distribution air passage, the combustion furnace supporting device is connected with the bottom cover, and the combustion furnace air distribution system includes an air intake fan, An air intake fan is disposed in the air distribution passage.

The air supply fan increases the air supply speed to the combustion cavity, and the position of the container to be heated is adjusted by the fire hood and the pot holder, so that the flame can uniformly heat the container, and the legs can improve the support effect of the ground on the combustion furnace. At the same time, it can ensure a certain air inlet distance under the air intake fan to prevent the ground from blocking the air distribution channel.

Further, the burner support device includes a leg that is rotatably coupled to the bottom cover, and the pan holder is rotatably coupled to the fire cover.

The rotating connection between the bracket and the leg allows the entire burner to be reduced in size when not in use, making it easy to place in a car or mountaineering bag.

The beneficial effects of the invention are: through the first-stage bleed holes provided on the lower side wall of the furnace body body and the secondary bleed holes provided on the upper cover of the combustion furnace, when the combustion occurs in the combustion furnace, the bottom of the furnace and the mouth of the furnace Oxygen is more abundant, and the middle part of the furnace is in a relatively oxygen-deficient environment. The oxygen content in different areas of the combustion cavity is different, so that the combustion is divided into multiple sections, which delays the heat release process of the fuel, and the heat loss is slower, which is conducive to the continuous increase of temperature and higher utilization of heat. The temperature of the combustion cavity continues to rise, evaporating the water contained in the fuel, and reducing the black smoke generated by the burning of materials such as branches.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings to be used in the embodiments will be briefly described below, it should be understood that the following drawings only show some of the present invention. The embodiments are not to be considered as limiting the scope, and other related figures may be obtained from those skilled in the art without departing from the scope of the invention.

1 is a schematic structural view of a furnace body of a combustion furnace according to Embodiment 1 of the present invention;

2 is a top plan view of a body of the furnace body according to Embodiment 1 of the present invention;

Figure 3 is a schematic view of the deformation of Figure 2;

4 is a schematic structural view of a combustion furnace according to Embodiment 2 of the present invention.

Summary of the reference signs:

Furnace body 101; burner upper cover 102; blanking table 103; heat shield 104; channel 105; secondary air vent 106; first air vent 107; second air vent 108; thermal support 109; Cover 110; burner isolation housing 200; burner assembly 300; furnace support device 400; furnace distribution system 500.

detailed description

The combustion furnace of the prior art has a low heat utilization rate and is very troublesome in use, and it is necessary to continuously add combustibles.

In view of this, the present invention provides a combustion furnace body with a furnace body and a furnace upper cover, the lower side wall of the furnace body is provided with a primary air vent, and the side wall of the upper cover of the combustion furnace is provided with a secondary induction The venting holes and the venting holes are arranged such that the oxygen content of each region of the combustion cavity is inconsistent, and the fuel can achieve multi-stage combustion, thereby improving the heat utilization efficiency of the combustion furnace.

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. The components of the embodiments of the invention, which are generally described and illustrated in the figures herein, may be in various different configurations. Arranged and designed. Therefore, the following detailed description of the embodiments of the invention in the claims All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position of indications such as "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of the description of the invention and the simplified description, and is not intended to indicate or imply that the device or component referred to has a specific orientation, is constructed and operated in a specific orientation, and thus It is not to be understood as limiting the invention.

Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include one or more of the features either explicitly or implicitly. In the description of the present invention, the meaning of "a plurality" is two or more unless specifically and specifically defined otherwise.

In the present invention, the terms "installation", "connected", "connected", "fixed" and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or integrated; can be mechanical connection, or can be electrical connection; can be directly connected, or can be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction of two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

In the present invention, the first feature "on" or "under" the second feature may include direct contact of the first and second features, and may also include first and second features, unless otherwise specifically defined and defined. Do not It is direct contact but through additional features between them. Moreover, the first feature "above", "above" and "above" the second feature includes the first feature directly above and above the second feature, or merely indicating that the first feature level is higher than the second feature. The first feature "below", "below" and "below" the second feature includes the first feature directly below and below the second feature, or merely the first feature level being less than the second feature.

1 is a schematic structural view of a furnace body of a combustion furnace according to a first embodiment of the present invention; FIG. 2 is a top view of the body of the furnace body according to Embodiment 1 of the present invention; and FIG. 3 is a schematic view of the deformation of FIG.

Referring to FIG. 1 to FIG. 3, a first embodiment of the present invention provides a combustion furnace body, including a furnace body, a furnace upper cover, a heat shield and a heat insulation cover.

The furnace body 101 is disposed under the upper cover 102 of the combustion furnace. The top of the upper cover 102 of the furnace is a blanking table 103. The top wall of the heat shield 104 is connected to the blanking table 103 and surrounds the upper cover of the furnace from the side. 102 and the furnace body 101, the heat shield 104 forms an air intake cavity between the upper furnace cover 102 and the furnace body 101, and the bottom of the heat shield 104 is connected with the heat insulation cover 110, and the heat insulation cover 110 and the furnace body The bodies 101 are connected by a heat insulating bracket 109.

The side wall of the furnace body 101 is vertically divided into an upper side wall and a lower side wall, and the lower side wall is provided with a primary air vent.

The upper cover 102 of the burner is fixed above the body 101 of the furnace, and a central portion of the upper cover 102 of the burner is provided with a passage communicating with the combustion cavity for drawing out the flame. The combustion furnace upper cover 102 is provided with a secondary bleed hole 106 for conveying air to the combustion cavity.

The primary bleed hole includes a first bleed hole 107 and a second bleed hole 108, and the air introduced into the combustion cavity by the first bleed hole 107 flows in a ring shape or a spiral shape.

The primary air vent is at the bottom of the combustion cavity, and the secondary air vent 106 is at the top of the combustion cavity. When combustion occurs in the combustion furnace, the oxygen at the bottom of the furnace and the furnace mouth are more sufficient, and the middle of the furnace is in a relative position. An anoxic environment. The combustibles burn in the furnace, sink into the furnace, enter the air at the bottom, burn the combustibles, and dissipate heat. The combustible material is mainly subjected to the first-stage combustion at the bottom of the furnace body and the middle portion of the furnace body to generate a combustible gas such as carbon monoxide, and then burned again in the area of the upper cover 102 of the combustion furnace and fully mixed with the newly entered air. The multi-stage combustion enables the heated high-temperature oxygen to be fully mixed with the combustible gas in the combustion cavity to increase the heat release, thereby improving the firepower. Since the air intake area is small, the heat is emitted more slowly, which is more conducive to the temperature rising, so that the furnace body 101 is in a high temperature environment, and the incoming air is also converted into high temperature air. The high temperature environment causes the moisture contained in the combustibles to be quickly evaporated, so that the fuel such as branches and the like produces less black smoke.

In order to make the air entering the combustion cavity flow in a ring shape or a spiral shape, the center line of the first air inlet hole 107 should be different from the center line of the furnace body 101, and the movement of the air flow introduced by each of the first air holes 107 should be at the horizontal plane. The upper side is clockwise or counterclockwise in the same direction of rotation.

Regardless of whether the flow of air in the combustion cavity is annular or spiral, the surrounding air has a tendency to rise due to heat release from combustion. Therefore, the airflow in the combustion cavity under working conditions should be a spiraling flow.

The flame follows the airflow to make a rotary ascending motion, which is more fully mixed with the air; the flow of the spiral is less wasteful, and the heat loss is slower; the active path of the flame increases, the contact time with the heated object becomes longer, and the heat utilization is higher. The rotating flame has uniform firepower and high heat utilization efficiency.

Referring to FIG. 2, the sidewall of the furnace body 101 is provided with four channels 105 recessed toward the inside of the combustion cavity. The first air inlet 107 is disposed on the side wall of the channel 105. The cross section of the channel 105 is "V" shape.

The hole in the inwardly concave channel 105 can easily realize the requirement that the center line of the first air inlet hole 107 is different from the center line of the furnace body 101, so that the air flow introduced by the first air inlet hole 107 is in the combustion cavity. Flows in a ring or spiral.

In order to ensure the uniformity of the wind direction, the first embodiment of the present invention provides four channels 105 having a cross section of "V" shape. Each of the channels 105 includes a first side wall and a second side wall. The four first side walls are rotationally symmetric about a centerline of the combustion cavity, and the four second side walls are also rotationally symmetric about a centerline of the combustion cavity. The four channels 105 are evenly distributed on the side walls of the furnace body 101.

The first air venting holes 107 are all disposed on the four first side walls or all of the four second side walls.

Referring to Figure 3, the number and shape of the channels 105 can also be varied, such as three curved channels 105.

The channel 105 is disposed vertically.

The "V" shaped channel 105 vertically disposed on the side wall of the furnace body 101 is not easy to continue after the combustion chamber is filled with a large amount of combustible material, in addition to facilitating the processing of the first bleed hole 107. Add inward. The shape of the "V" shaped channel 105 can open the fuel and form a gap near the side wall of the channel 105. Through the gap, the user can continue to add granular fuel to the combustion cavity, and the gap can also make all The fuel is well mixed with the high temperature oxygen entering the furnace.

The number of grooves is not constant. In order to ensure that the effect of the spiral wind is more obvious, the number of grooves may be appropriately increased, the number of the first air holes 107 may be increased, or the angle of the first air holes 107 may be adjusted.

Further, the first bleed hole 107 can also be fabricated by increasing the thickness of the side wall of the furnace body and by drilling the hole on the side wall. The wind that is guided through the first bleed hole 107 by a sufficient thickness is not directly blown toward the center of the furnace body, but enters the furnace in a circular or spiral path.

Referring to FIG. 1 , a second air vent 108 is disposed on a bottom sidewall of the furnace body 101 provided in the first embodiment. The second air vent 108 is used to increase the intake air amount, and the center line of the second air vent 108 can be The center line of the combustion cavity is coplanar and may also coincide with the direction of the first bleed hole 107.

The burner upper cover 102 is disposed at the top of the furnace body 101, and the shape of the burner upper cover 102 is a hollow truncated cone shape.

The inner diameter of the upper cover 102 of the burner gradually increases from top to bottom, and the cross-sectional area of the intermediate passage gradually increases from top to bottom.

The hollow structure of the burner upper cover 102 allows the flame of the combustion cavity to emerge from the intermediate passage of the burner upper cover 102.

In the case where the intake speed is constant, that is, when the speed at which the primary bleed hole and the secondary bleed hole 106 introduce air is constant, the amount of gas in the combustion cavity is constant. The cross-sectional dimension of the combustion cavity is greater than the top dimension of the intermediate passage of the upper cover 102 of the furnace, and the flow rate of air at the top of the intermediate passage of the upper cover 102 of the furnace is greater than the flow rate within the combustion cavity.

According to this feature, the upper and lower passages cause the flame to suddenly pick up at the top of the upper cover 102 of the burner, so that the flame can reach a large height, so that the flame can fully contact the item to be heated above the upper cover 102 of the furnace. .

The combustion furnace upper cover 102 is provided with a secondary venting hole 106. During operation, the oxygen content in the top portion of the combustion cavity is higher than that in the central portion of the combustion cavity.

The top of the burner upper cover 102 is a blanking table 103, and the middle portion of the blanking table 103 is hollowed out for the fire to emerge. The combustion cavity in the furnace body 101 and the central passage of the upper cover 102 of the furnace are penetrated.

The top wall of the blanking table 103 is funnel-shaped, and the top wall is gradually recessed downward from the surrounding hollowed-out area.

The funnel-shaped top wall allows the user to scatter the combustion material that should have been scattered on the top of the upper cover 102 of the furnace to fall into the combustion cavity along the funnel-type slope due to gravity. It is convenient for the user to add fuel to the combustion cavity.

The heat shield 104 surrounds the furnace body 101 and the burner upper cover 102 from the side. The top of the heat shield 104 is connected to the blanking table 103. The side wall of the heat shield 104 is separated from the furnace body 101 and the upper cover 102 of the furnace. The bottom of the heat insulating tube is connected to the heat insulating cover 110. The heat cover 110 is disposed under the furnace body 101 and is provided with a gap between the bottom of the furnace body and the bottom of the furnace body. The heat insulation cover 110 and the furnace body 101 are connected by a heat insulation bracket 109, and the middle portion of the heat insulation cover 110 is provided with a front. Air opening.

The side wall of the heat shield 104 is a fully enclosed structure, and the left gap between the heat shield 104 and the furnace body 101 is an air intake cavity, and the inlet of the air intake cavity is an air inlet opening at the bottom, and the air intake is empty. The outlet of the chamber is a primary vent and a secondary vent 106 disposed on the body 101 of the furnace.

In order to increase the air inlet speed of the intake cavity, an intake fan can be installed at the intake opening in the combustion furnace, and the intake fan can accelerate the injection of fresh air into the intake cavity to provide the wind. The pressure ensures that the flames in the combustion cavity do not escape from the bleed holes, but instead concentrate the objects to be heated that are discharged upward through the intermediate passages.

By adjusting the speed of the fan, it is possible to control the intake speed of the air combustion furnace, thereby controlling the internal firepower.

The heat shield 104 further prevents heat loss from the furnace body 101, and controls the heat released from the combustion of the fuel inside the heat shield 104, thereby greatly reducing heat loss. The temperature of the entire intake cavity is high, and the air entering the air intake cavity is quickly converted into a high temperature gas to make the combustion more complete.

The connection between the burner upper cover 102, the furnace body 101 and the heat shield 104 may be achieved by welding or integrally formed.

Referring to FIG. 4, a second embodiment of the present invention provides a combustion furnace including a burner assembly 300, a combustion furnace isolation casing 200, a combustion furnace air distribution system 500, a combustion furnace support device 400, and a combustion furnace body, and a combustion furnace. The body is disposed in the combustion furnace isolation casing 200. The top of the combustion furnace isolation casing 200 is provided with a fire opening. The burner assembly 300 is disposed above the fire opening. The burner assembly 300 includes a fire cover and a pan holder, and the fire cover and the combustion furnace are separated from the furnace. 200 is connected, the pan holder is rotated on the fire hood, the bottom of the combustion furnace isolation casing 200 is provided with a distribution air passage, and the bottom leg is fixed at the bottom of the combustion furnace isolation casing 200, and the air distribution system includes an air intake fan, and the air intake fan is arranged In the air distribution channel.

The bottom leg is rotatably coupled to the bottom of the burner isolation housing 200, and the pan holder is rotatably coupled to the top of the burner isolation housing 200.

The bottom leg and the pan support are rotatable, so that the bottom leg and the pan frame can be folded after the use of the burner, thereby reducing the overall occupation space, and being portable or installed in the trunk or backpack of the car.

In the examples shown and described herein, any specific values should be construed as merely exemplary, and not as a limitation, and thus, other examples of the exemplary embodiments may have different values.

It should be noted that similar reference numerals and letters indicate similar items in the following figures, and therefore, once an item is defined in a drawing, it is not necessary to further define and explain it in the subsequent drawings.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

A burner furnace body, comprising: a burner upper cover and a furnace body with a combustion cavity, the burner upper cover being disposed above the furnace body, the opening of the combustion cavity facing Above, a middle portion of the upper cover of the combustion furnace is provided with a passage communicating with the combustion cavity, and a side wall of the furnace body body is vertically divided into an upper side wall and a lower side wall, and a lower part of the furnace body A first-stage air inlet hole for introducing air is disposed on the side wall, and a sidewall of the upper surface of the combustion furnace is provided with a secondary air-inlet hole, and the first-stage air-inlet hole and the second-stage air-inlet hole are both through holes.
A furnace body according to claim 1, wherein said primary bleed hole comprises a first bleed hole, and said air flow entering said combustion cavity through said first bleed hole flows in a circular or spiral shape.
A furnace body according to claim 2, wherein said lower side wall is provided with at least one channel recessed toward the inside of said combustion cavity, said channel being vertically disposed, said first An air vent hole is disposed on a sidewall of the channel, and an axial line of the first air vent hole is opposite to a center line of the furnace body, and the channel has a cross-sectional shape of a “V” shape or arc.
A furnace body according to claim 3, wherein said channels are at least two and rotationally symmetric about a centerline of said combustion cavity.
The furnace body of claim 3, wherein the primary bleed hole further comprises a second bleed hole, the center line of the second bleed hole being coplanar with a center line of the combustion cavity, The second air vent is disposed on the lower sidewall.
The furnace body according to claim 1, wherein the upper cover of the burner is in the shape of a truncated cone, the top inner diameter of the upper cover of the combustion furnace is smaller than the inner diameter of the bottom, and the bottom of the upper cover of the combustion furnace is The top of the upper side wall is connected.
The furnace body according to claim 1, wherein the top of the upper cover of the burner is a blanking table, and the blanking table is a funnel-like structure whose inner diameter gradually decreases from the top to the bottom.
A furnace body according to claim 1, further comprising an insulating cylinder and a heat insulating cover, the top wall of the insulating cylinder being connected to the upper cover of the burner, the bottom of the insulating cylinder Connected to the heat insulating cover, the heat insulating cover is disposed under the furnace body and is provided with a gap between the heat insulating cover and the body of the furnace body a heat bracket is connected, an air inlet cavity is formed between the heat insulation tube and the body of the furnace, and the heat insulation cover is provided with an air inlet opening for placing an air intake fan, and the air intake fan brings air into the The intake cavity is introduced into the combustion cavity through the primary bleed hole and/or the secondary bleed hole.
A combustion furnace, comprising: a burner assembly, a combustion furnace isolation casing, a combustion furnace air distribution system, a combustion furnace support device, and a combustion furnace body according to any one of claims 1-8, said combustion The furnace body is disposed in the combustion furnace isolation casing, the top of the combustion furnace isolation casing is provided with a fire opening, the burner assembly is disposed above the fire opening, the burner assembly includes a fire cover and a pan frame The fire hood is connected to the combustion furnace isolation casing, the pan frame is disposed on the fire hood, and the bottom of the combustion furnace isolation casing is fixedly connected with the bottom cover, and the bottom cover is provided with a distribution air passage. The burner support device is coupled to the bottom cover, and the burner air distribution system includes an intake fan, and the intake fan is disposed in the air distribution passage.
The burner according to claim 9, wherein said burner supporting means comprises a leg, said leg being rotatably coupled to said bottom cover, said pan holder being rotatably coupled to said fire head cover.