WO2016119195A1

WO2016119195A1 - Combustion equipment for solid fuel

Info

Publication number: WO2016119195A1
Application number: PCT/CN2015/071901
Authority: WO
Inventors: 车战斌
Original assignee: 车战斌
Priority date: 2015-01-30
Filing date: 2015-01-30
Publication date: 2016-08-04

Abstract

Combustion equipment (100) for a solid fuel (5). The combustion equipment (100) is provided with a fuel-stacking surface (14) corresponding to a fuel inlet (11) within a furnace chamber (10). A fuel-blocking grate (2) capable of changing the shape in which the upper part of the fuel-stacking level (1) is stacked is arranged at a combustion side (102) of the fuel-stacking level (1). The fuel-blocking grate (2) is provided with a flow-allowing structure (21) that allows airflow to pass through. The equipment allows full combustion of a volatile in the solid fuel (5), thus increasing combustion efficiency.

Description

Solid fuel combustion device

Technical field

This invention relates to the field of solid fuel combustion, and more particularly to a solid fuel combustion apparatus.

Background technique

From the perspective of fuel classification, solid fuels are the most widely used combustion materials, especially coal, because of their abundant resources and safe use. In addition, with the increase in the demand for mineral solid fuels represented by coal, the reduction of resources, and the development of global new energy campaigns, renewable biomass burning materials such as straw, straw, wood, wood chips, Dead branches and other molding fuels have received great attention.

After careful study, the inventors found that the biomass carbon combustion material has a relatively low fixed carbon content and a relatively high volatile content (about 50% to 70%). Such solid fuels with high volatile content, including biomass burning materials, and low-quality coal such as lignite coal, have two main characteristics: 1) the volatile matter precipitation temperature is lower than the volatile ignition point; 2) the ignition point of the volatile matter Higher than the ash melting point. Conventional combustion devices mainly used for mineral solid fuels represented by coal cannot be directly applied to biomass burning materials.

Based on the above characteristics of a combustion material having a high volatile content, the inventors have proposed a combustion apparatus for burning which can sufficiently burn volatile matter in a solid fuel having a high volatile content by using lateral combustion. And solve the problem of ash to ensure continuous combustion of fuel. (See utility model patent with patent number 201420098863.5)

The combustion mechanism of the above-described combustion apparatus is that the volatile matter is first precipitated by the heating of the biomass fuel, and the evolved volatile matter flows toward the combustion chamber with the gas flow, and is ignited by the high-temperature flame generated by the combustion flame to be combusted when passing through the combustion flame. In the above process, if the volatile matter is not sufficiently burned, it will be discharged into the air in the form of black smoke, causing environmental pollution.

Upon investigation, the inventors have further found that if the volatiles are to be sufficiently combusted, it is necessary to: 1) the time during which the volatiles stay in the combustion chamber; 2) the provision of sufficient air in the combustion chamber. That is, if the volatiles are to be sufficiently combusted, the amount of air to be introduced into the combustion chamber matches the amount of volatiles deposited.

However, for different combustion materials having a high volatile content, the amount of air required to enter the combustion chamber during combustion is also different due to the difference in the content of volatiles therein. For the same kind of combustion material, the degree of volatility is different in different combustion stages, and the amount of air required to enter the combustion chamber is also different, and for the same biomass fuel, when When the volume and thickness of the formed buildup layer are different, the amount of air distribution required to enter the combustion chamber during combustion is also different.

Therefore, it is necessary to provide a combustion material that can be adapted to different types of volatiles and can be adapted to the same combustion. The solid fuel combustion device of the burning material in different combustion stages ensures that the volatile matter in the solid fuel can be fully burned, the combustion efficiency is improved, the emission of harmful gases is reduced, and the environment is protected.

Summary of the invention

An object of the present invention is to provide a combustion apparatus for a solid fuel which can sufficiently burn volatile matter in a solid fuel, improve combustion efficiency, reduce harmful gas emissions, and is environmentally friendly.

In order to achieve the above object, the present invention provides a solid fuel combustion apparatus including a furnace having an air inlet for supplying air to a furnace and a solid fuel feed port, wherein the feed port is disposed in the furnace At the top, in the furnace, corresponding to the feed port, a stacking surface for receiving solid fuel entering from the feed port is provided, and the solid fuel forms a stack layer between the feed port and the stack face, in the stack layer One side is formed as an air inlet side for supplying air to the stack layer, and the other side opposite to the air inlet side is formed as a combustion side; the pile layer constitutes a partition between the inlet side and the combustion side; The combustion side is formed with a combustion chamber that is electrically connected to the outlet of the exhaust gas. The combustion side of the stack layer is provided with a baffle that can change the shape of the upper portion of the stack, and the baffle has a flow allowing the airflow to pass. The structure has a spacing between the bottom end of the baffle and the stacking surface.

With the above-described combustion apparatus of the present invention, when the pile layer is burned, the wind entering the furnace is laterally passed through the pile layer from the inlet side, and exits from the combustion side of the pile layer to enter the combustion chamber. It can be seen from the above process that the resistance of the pile layer to the wind is one of the key factors affecting the amount of air distribution into the combustion chamber. In the present invention, the baffle disposed on one side of the stack layer changes the shape and thickness of the stack layer by the baffle, changes the resistance of the stack layer to the wind, and changes the fit into the combustion chamber. Air volume. In this way, as long as the upper stacking shape of the stack layer is changed by the retaining material, the air distribution entering the combustion chamber can be adapted to different biomass fuels, thereby ensuring that the volatiles in different types of biomass fuel can be fully burned. Reduce harmful emissions and contribute to environmental protection.

In addition, for the same biomass fuel, the amount of volatiles in the biomass fuel is different at different stages of combustion. At different stages of combustion, the stacking shape of the pile layer is changed by the stopper, so that The amount of air distribution entering the combustion chamber at different stages of combustion matches the amount of volatiles deposited, ensuring that the volatiles are fully combusted at different stages of combustion, reducing harmful gas emissions.

Moreover, for the same biomass fuel, because the thickness of the pile layer at different height positions in the vertical direction is different, the air distribution amount at different height positions of the pile layer is different, and the pile layer is changed by the block material. The stacked shape is such that the distribution air volume at different height positions of the pile layer matches the volatile matter precipitated at the height position, thereby ensuring that the volatiles at different height positions of the pile layer can be effectively burned and the emission of harmful gases is reduced.

In an alternative example, the baffle is tilted relative to the horizontal.

In an alternative example of the baffle, the baffle is inclined at an angle relative to the horizontal direction that is less than or equal to the natural stacking slope of the solid fuel.

In an alternative example of the baffle, the top wall of the baffle is fixedly coupled.

In another alternative example of the baffle, the angle of inclination of the baffle is substantially the same as the natural stacking slope of the solid fuel.

In still another optional example of the baffle, the top end of the baffle is rotatably coupled to the wall of the grate, and the bottom end of the baffle is formed as a free end that can be swung by adjusting the baffle The angle of inclination of the crucible changes the thickness of the upper portion of the stack.

In an alternative example, the angle of inclination of the baffle is adjusted to be less than the natural stacking slope of the solid fuel.

In an alternative example, the angle of inclination of the stop can be adjusted infinitely.

In an alternative example, the rotating shaft end of the baffle extends beyond the outside of the wall of the furnace and is controlled by a knob or a crank to rotate the baffle.

In an optional example of the present invention, the flow-receiving structure of the baffle is a fence structure, a grid structure or a grid structure.

In an alternative embodiment of the invention, the stack layer is in contact with the inner wall of the furnace on opposite sides between the inlet side and the combustion side to isolate the inlet side from the combustion side.

In an optional example of the present invention, the side wall of the two opposite side inner walls between the inlet side and the combustion side of the furnace above the stacking surface is between the inlet side and the combustion side of the stack layer The natural stacking slopes formed by the two sides are uniform or located inside the natural stacking slope, so that the two side wall faces of the stacking layer between the inlet side and the burning side are in contact with the inner wall of the furnace.

In an alternative embodiment of the invention, the volatiles flow path on the combustion side is provided with a flow guiding wall that directs the volatile gas stream to the lateral combustion flame.

In an alternative example of the invention, the flow guiding wall is made of a heat storage material.

In an alternative embodiment of the invention, the stacking surface has a void structure for ash discharge, and a ash chamber for receiving ash is disposed below the stack surface.

In an optional example of the present invention, the stacking surface is a closed surface that does not allow airflow, and an ashing device for removing the ash is disposed on the stacking surface, and the stacking surface is located at the burning side. A ash chamber for receiving the ash is disposed outside the portion. In an optional embodiment of the example, an air inlet channel for supplying wind entering from the air inlet to the air inlet side of the stack layer may be disposed between the air inlet and the air inlet side of the stack layer, the stack surface The lower part is connected to the inlet passage. In an alternative embodiment of this example, the upper surface of the stacking surface is a bevel that slopes downward toward the combustion side.

In an alternative embodiment of the invention, the baffle is in the form of a flat plate.

In an alternative embodiment of the invention, the baffle is curved.

In an alternative embodiment of the invention, the baffle is stepped.

Experiments have shown that with the above-mentioned combustion apparatus of the present invention, the volatile matter can be almost completely burned, the combustion efficiency of the combustion furnace is over 95%, and there is no black smoke emission, and the clean discharge of the solid fuel combustion with high volatile content is realized. The combustion furnace of the invention fully utilizes the characteristics of gravity and heat transfer, and not only meets the requirements of the combustion principle, but also achieves combustion. The automatic and orderly combustion of the material has the advantages of simple structure, low manufacturing cost and convenient use, thereby providing favorable conditions for the popularization and application of the solid fuel with high volatile content.

DRAWINGS

The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure. In addition, the shapes, proportions, and the like of the components in the drawings are merely illustrative and are intended to assist the understanding of the present invention and are not intended to limit the shapes and proportions of the components of the present invention. Those skilled in the art, in light of the teachings of the present invention, may choose various possible shapes and ratios to implement the present invention.

Figure 1 is a schematic view showing the combustion of the combustion apparatus of the present invention;

2 is a schematic structural view showing that the inclination angle of the stopper of the combustion device of the present invention is smaller than the natural stacking slope of the pile layer;

Figure 3 is a schematic view showing the structure of the top end of the baffle of the combustion apparatus of the present invention being rotatably connected to the wall of the furnace;

Figure 4 is a schematic view showing the structure of the rotating shaft end of the stopper of the burning device of the present invention;

Figure 5 is a schematic view showing the structure of the stacking surface of the combustion device of the present invention;

Figure 6 is a side cross-sectional structural view showing the knob of the rotating device of the combustion device of the present invention with a knob mounted thereon;

Figure 7A is a schematic structural view (1) of the stopper of the combustion apparatus of the present invention;

Figure 7B is a schematic structural view (2) of the stopper of the combustion apparatus of the present invention;

Figure 7C is a schematic structural view (3) of the stopper of the combustion apparatus of the present invention;

Figure 8 is a schematic view showing the structure of the material of the combustion device of the present invention in an arc shape (1);

Figure 9 is a schematic view showing the structure of the material of the combustion device of the present invention in an arc shape (2)

Figure 10 is a schematic view showing the structure of the blocker of the combustion apparatus of the present invention in a trapezoidal shape.

Description of the reference signs:

Combustion device 100; heat exchange device 200; exhaust gas discharge port 201;

Furnace 10; inlet side 101; combustion side 102; two opposite side wall faces 103, 104 between the inlet side and the combustion side;

Stack layer 1; thickness d; two

opposite sides

161, 162 of the stack layer between the inlet side and the combustion side; natural stacking slope 16; feed port 11; air inlet 12; furnace 14; Feed hopper 15;

Retaining material 箅2; flow absorbing structure 21; bottom end 22; top end 23; rotating shaft end 231; rocking handle 24; knob 25;

Combustion chamber 3; ash chamber 4;

Solid fuel 5; volatile matter 51; fixed carbon fuel 52 after volatilization; furnace ash 53;

The deflector wall 6; the ashing device 7.

detailed description

The details of the present invention can be more clearly understood from the description of the drawings and the description of the invention. However, the specific embodiments of the invention described herein are intended to be illustrative only and not to be construed as limiting the invention. Those skilled in the art can devise any possible variations based on the present invention, which are considered to be within the scope of the present invention.

The present invention provides a solid fuel combustion apparatus 100 comprising a furnace 10 provided with an air inlet 12 for supplying air to the furnace 10 and a solid fuel feed port 11 which is disposed at the top of the furnace 10 at the furnace 10 The corresponding corresponding feed port 11 is provided with a stacking surface 14 for receiving solid fuel entering from the feed port 11, and the solid fuel forms a stack layer 1 between the feed port 11 and the stacking surface 14, at the stack layer 1 One side is formed as an air inlet side 101 for supplying air to the pile layer 1, and the other side opposite to the air inlet side 101 is formed as a combustion side 102; the pile layer 1 constitutes an inlet side 101 and a combustion side 102 a partition between the combustion side 3 and a combustion chamber 3 that is electrically connected to the outlet of the stack, wherein the combustion side of the stock layer 1 is provided with a stopper 2 capable of changing the shape of the upper portion of the stack 1 The baffle 2 has a flow-receiving structure 21 that allows airflow therethrough. The baffle 2 is extended from the bottom end of the feed opening 11 toward the stacking surface 14. The baffle 2 is arranged with a spacing between its bottom end 22 and the stacking surface 14.

During combustion, the pile layer 1 is ignited, and air is introduced from the inlet side 101 of the pile layer 1, the wind passes transversely through the pile layer 1, and exits from the combustion side 102 of the pile layer 1, the wind is directed toward the combustion flame The combustion chamber 3 is burned, the fuel gradually moves down as the volume becomes smaller, and the new fuel is automatically replenished to the stack layer 1 under the action of gravity, and the volatiles 51 are heated to precipitate, and the volatiles 51 are deposited from the stack layer. The combustion side 102 of the first one passes through, and the stacking shape of the upper part of the stack layer 1 is adjusted by the retaining material ,2, thereby adjusting the air distribution amount of the wind entering the combustion chamber through the pile layer 1, and finally the air distribution amount entering the combustion chamber 3 is finally obtained. Matches the amount of volatiles 51 precipitated. Thus, the volatile matter 51 is sufficiently burned in the combustion chamber 3, and the combustion exhaust gas is discharged from the exhaust gas outlet 201. At the same time, the fixed carbon fuel 52 after the volatile matter 51 is precipitated is ignited, carbon combustion is performed, and a new combustion flame is generated, and after burning out The resulting ash 53 is discharged through the stacking surface 14 at the bottom of the pile layer 1, and as the combustion progresses, the new fuel is continuously replenished on the pile layer 1, forming a combustion cycle.

With the above-described combustion apparatus of the present invention, when the pile layer 1 is burned, the wind entering the furnace chamber passes through the stack layer 1 laterally from the inlet side 101, passes through the combustion side 102 of the pile layer 1, and enters the combustion chamber 3. . It can be seen from the above process that the resistance of the pile layer 1 to the wind is one of the key factors affecting the amount of air distribution into the air in the combustion chamber 3. In the present invention, the baffle 2 disposed on the air inlet side of the pile layer 1 changes the shape and thickness of the pile layer 1 by the baffle ,2, thereby realizing the change of the resistance of the pile layer 1 to the wind. Further, the amount of air distribution entering the air in the combustion chamber 3 is changed. In this way, as long as the upper stacking shape of the stack layer 1 is changed by the retaining material 箅2, the air distribution entering the combustion chamber 3 can be adapted to different biomass fuels, and the volatiles 51 in different kinds of biomass fuels are ensured. It can fully burn, reduce harmful gas emissions and is conducive to environmental protection.

In addition, for the same biomass fuel, volatiles are released from the biomass fuel at different stages of combustion. How much is different, at different stages of combustion, the stacking shape of the stock layer 1 is changed by the baffle ,2, so that the amount of air distribution entering the combustion chamber 3 at different stages of combustion matches the amount of volatile matter 51 precipitated, ensuring The volatiles 51 can be fully burned at different combustion stages to reduce the emission of harmful gases.

Moreover, for the same biomass fuel, since the thickness of the pile layer 1 at different height positions in the vertical direction is different, the air distribution amount at different height positions of the pile layer 1 is different, and the pile is changed by the stopper 箅2 The stacked shape of the material layer is such that the distribution air volume at different height positions of the pile layer 1 matches the volatile matter 51 precipitated at the height position, thereby ensuring that the volatile matter 51 at different height positions of the pile layer 1 can be effectively burned. Reduce the emission of harmful gases.

The main air flow generated by the wind entering the furnace 10 of the present invention refers to the main air flow generated by the wind, which flows from the air inlet side 101 of the pile area 1 substantially transversely through the pile area 1 from the combustion side 102; during the combustion process The wind entering the furnace 10 mainly produces airflow transversely through the stacking zone 1, and the bottom stacking surface 14 of the stacking zone 1 has almost no airflow or a weak airflow passing through the bottom stacking surface 14, as long as the wind The weak airflow does not affect the main airflow direction, and does not affect the effect of the combustion apparatus of the present invention, that is, the combustion apparatus of the present invention can ensure that the main airflow direction in the combustion process enters from the inlet side 101 of the stack layer 1 and from the combustion side. It is within the scope of the invention for the 102 to pass through the stacking layer 1 to form a lateral burning pattern.

The stock layer 1 in the present invention refers to a pile formed of a solid fuel between the feed port 11 and the pile surface 14. During the combustion process, the newly introduced fuel in the upper layer is first heated to a temperature at which the volatile matter is precipitated to precipitate volatiles, and then ignited for fixed carbon combustion, and gradually decreases as the volume of the fuel becomes smaller as the combustion progresses. The ash 53 generated after the burnout is discharged through the stacking surface 14; at the same time, the new fuel is automatically replenished to the stack layer 1 under the action of gravity, and thus circulates, the stack layer 1 between the feed port 11 and the stacking surface 14 It is in a state of dynamic equilibrium during combustion and maintains a stable pile shape.

According to the above-described combustion apparatus 100 of the present invention, since the fuel is released from the volatile matter 51 and the fixed carbon combustion is carried out in the furnace above the pile layer 14 during the combustion process, the volume of the fuel is released after the volatile matter 51 is precipitated as the combustion proceeds. Small, automatically moving downward under the action of gravity, and gradually ignited by the lower combustion flame, the new fuel is automatically replenished from the feed port 11 to the pile layer 1 under the action of gravity, and the fixed carbon combustion of the lower layer of fuel is the upper layer of fuel. The volatile matter is precipitated to provide the required heat, and the replenishing speed of the new fuel depends on the burning speed of the lower layer fuel, thereby naturally achieving the natural matching of the upper volatile layer precipitation and the burning speed of the fixed carbon fuel 52, effectively solving the existing hot blast stove burning A security risk problem that does not match the speed.

Meanwhile, as shown in FIG. 1 to FIG. 3, during the combustion process, the stacking shape of the upper portion of the stack layer 1 is changed by the stopper 箅2 to change the thickness d of the upper portion of the stack layer 1 in the vertical direction. Finally, the amount of air distribution at different positions in the vertical direction through the upper portion of the stacking layer 1 is adapted to the amount of the volatile matter 51 precipitated to ensure sufficient combustion of the volatile matter 51.

In the present invention, as shown in Fig. 1, Fig. 8, or Fig. 9, the specific shape of the stopper 2 can be set as needed, as long as the shape of the upper portion of the stack layer 1 can be changed.

In an alternative embodiment of the baffle of the present invention, as shown in Figure 1, the baffle 2 can be in the shape of a straight plate.

In another alternative embodiment of the baffle of the present invention, as shown in Figures 8 and 9, the baffle 2 can be curved.

In still another alternative embodiment of the baffle of the present invention, as shown in Figure 10, the baffle 2 can also be trapezoidal.

In the present invention, as shown in Figs. 1 to 8, the stopper 2 is inclined with respect to the horizontal direction. The solid fuel entering from the feed port 11 is stacked upward by the stacking surface 14 to form a buildup layer 1. After the solid fuel is accumulated to a certain height, the stacked shape of the stack layer 1 occurs due to the blockage of the damper 2 disposed obliquely. Change (as shown in Fig. 1), thereby avoiding that the distribution air volume at the upper part of the pile layer 1 is higher than the low position due to the thickness d of the upper portion of the pile layer 1 being smaller than the thickness d at the lower position. In the case of the air distribution amount, the wind with the excessively high air volume and the wind speed is too fast, and the wind with the volatile matter 51 is directly excluded from the exhaust gas discharge port 201 and cannot be completely burned. The problem is that the volatiles 51 carried by the wind passing through the pile layer 1 can smoothly reach the high temperature flame zone, and the full combustion of the volatile matter 51 of the solid fuel is achieved.

In the present invention, as shown in FIGS. 1 to 6, the inclination angle of the stopper 2 with respect to the horizontal direction can be set as needed as long as it can change the stacked shape of the upper portion of the stack layer 1.

In an alternative example of the invention, as shown in Figure 2, the fence 2 is inclined at an angle relative to the horizontal direction that is less than the natural stacking slope of the solid fuel. Under the blocking action of the baffle 2, the thickness d of the stock layer 1 gradually decreases downward from the feed port 11 in the vertical direction, and the thickness of the stock layer 1 at the position of the bottom end 22 of the baffle 2 d is the smallest. Correspondingly, the air volume and the wind speed of the wind passing through the pile layer 1 gradually increase from the feed port 11 in the vertical direction, and the air distribution amount passing through the bottom end 22 of the baffle 2 And the wind speed is also the biggest.

In another alternative example of the present invention, as shown in Figures 1 and 6, the angle of inclination of the baffle 2 is substantially the same as the natural stacking slope of the solid fuel. Under the action of the baffle 2, the side of the upper part of the stacking layer 1 on the burning side is substantially parallel to the side located on the inlet side, that is to say, the thickness d at the different heights of the upper part of the pile layer 1 is also substantially the same, so that The distribution air volume and the wind speed at the different heights of the upper part of the pile layer 1 are basically the same, that is, the wind can average the average speed through the high temperature flame zone, which is favorable for the full combustion of the volatile matter 51 carried in the wind.

In an alternative embodiment of the invention, as shown in Figures 1 and 2, the top end of the retainer 2 is fixedly coupled to the wall of the furnace.

In another optional example of the present invention, as shown in FIGS. 3 and 4, the tip end of the stopper 2 is rotatably coupled to the wall of the furnace, and the bottom end 22 of the stopper 2 is formed as a free end capable of swinging. Adjusting the inclination angle of the stopper 2 changes the degree d of the upper portion of the pile layer 1. In this way, according to the combustion condition of the solid fuel in the furnace 10, the thickness d of the upper portion of the pile layer 1 can be changed at any time by the stopper 箅2, so that the air distribution amount and the wind speed passing through the pile layer 1 are more closely matched with the combustion condition.

In an alternative example of the invention, the angle of inclination of the baffle 2 is adjusted to be less than the natural stacking slope of the solid fuel.

In another alternative example of the invention, the angle of inclination of the stop 2 can be adjusted infinitely.

In an optional example of the present invention, the rotating shaft end 231 of the stopper 2 extends beyond the outside of the furnace wall. As shown in FIG. 6, the rotating shaft end 231 is provided with a knob 25, and the knob 25 controls the rotation of the stopper 2, Alternatively, as shown in FIGS. 4 and 7, the rotating shaft end 23 is mounted with a rocker 24, and the rocker 24 controls the rotation of the stopper 2 .

In the present invention, the flow-receiving structure 21 of the baffle 2 can be designed in various forms as long as it can allow airflow to pass through and block the fuel. For example, the flow-allowing structure 21 can be a fence structure, a grid structure or a grid. Structure, etc. 7A, 7B, and 7C show examples in which the stopper 2 is a porous structure, a fence structure, and a louver structure.

In the present invention, as shown in FIGS. 6 and 7, the two

opposite sides

161, 162 of the stack layer 1 between the inlet side 101 and the combustion side 102 are in contact with the inner wall of the furnace 10, thereby the inlet side 101. Isolated from the combustion side 102. In this way, the airflow generated by the wind entering the air inlet side 101 passes through the pile layer 1 to reach the combustion side 102, thereby preventing the wind from passing outside the pile layer 1 and doing useless work, thereby ensuring the effectiveness of the wind passing through the pile layer 1. supply.

In the present invention, as shown in FIG. 6, the two opposite side wall faces 103, 104 between the inlet side 101 and the combustion side 102 of the furnace 10 above the stacking surface 14 and the stack layer 1 on the inlet side 101 The natural stacking slope 16 that can be formed on both sides between the combustion side 102 coincides with or is located inside the natural stacking slope such that the two

sides

161, 162 of the stack layer between the inlet side 101 and the combustion side 102 and the furnace 10 The inner walls meet.

In the present invention, as shown in Figs. 1 to 6, a flow guiding wall 6 for guiding a volatile gas flow to a lateral combustion flame is provided on the volatile flow path of the combustion side 102. The wind that has passed through the stack layer 1 is guided via the pilot wall 6 via the combustion flame so that the volatiles 51 can be burned more fully.

Further, as shown in FIGS. 1 to 8, the flow guiding wall 6 is made of a heat storage material. Thus, the flow guiding wall 6 can be formed as a high-temperature regenerator after being heated by the combustion flame due to its heat storage capacity, and is formed by the high-temperature regenerator and the combustion flame when the volatilized gas stream passes through the high-temperature regenerator. High temperatures make it easier to ignite volatiles, which is more conducive to the full combustion of volatiles.

In an alternative example of the invention, as shown in Figures 1 to 6, the stacking surface 14 has a void structure 141 for ash discharge, below which a ash chamber 4 for receiving ash is provided. .

In another optional example of the present invention, as shown in FIGS. 5 and 6, the stacking surface 14 is a closed surface that does not allow airflow to pass through, and the pile surface 14 is provided with a dusting ash for removing the ash. The apparatus 7 is provided with a ash chamber 4 for receiving the ash on the outside of the end of the stacking surface 14 on the combustion side 102.

In another optional example of the present invention, as shown in FIGS. 5 and 6, the stacking surface 14 is a closed surface that does not allow airflow to pass through, and the pile surface 14 is provided with a dusting ash for removing the ash. The apparatus 7 is provided with a ash chamber 4 for receiving the ash on the outside of the end of the stacking surface 14 on the combustion side 102. In this way, since the stacking surface 14 is a closed structure that does not allow airflow, the airflow under the stacking surface 14 is effectively prevented from entering the stacking layer 1 through the stacking surface 14, thereby avoiding uncontrollable airflow below the stacking surface 14. Adverse effects on combustion. And, since no airflow passes through the stacking surface 14, it enters the bottom of the stacking surface 14. In the pile layer 1, the temperature at the bottom of the pile layer 1 is also not too high, and the problem of slagging due to excessive temperature is avoided or improved.

In an optional example of the present invention, as shown in FIG. 5, between the air inlet 12 and the air inlet side 101 of the stack layer 1, a wind entering from the air inlet 12 is provided to the air inlet side of the stack layer 1. The air inlet passage 18 of 101. Further, a space below the stack face 14 having a closed structure may be in communication with the intake passage 18. Thus, a part of the cold air entering from the air inlet 11 can enter below the stacking surface 14 of the closed structure, and this part of the cold air can lower the temperature of the stacking surface 14, further avoiding the temperature at the bottom of the stacking layer 1 being too high. The resulting ash problem, at the same time, the bottom 14 of the material can preheat this part of the cold air to improve the thermal efficiency.

In an alternative example of the present invention, as shown in FIGS. 5 and 6, the upper surface of the stacking surface 4 having a closed structure that does not allow airflow therethrough is a slope that slopes downward toward the combustion side 102 to facilitate cleaning. .

The experiment proves that with the above-mentioned lateral combustion type combustion device of the present invention, the volatile matter can be almost completely burned, the combustion efficiency is higher than 95%, and there is no black smoke emission, and the clean discharge of the solid fuel combustion with high volatile content is realized. . The invention fully utilizes the characteristics of gravity and heat transfer, realizes automatic and orderly combustion of fuel, has simple structure, low manufacturing cost and convenient use, and provides favorable conditions for popularization and application of solid fuel with high volatile content.

The detailed description of the various embodiments described above is intended to be illustrative of the present invention in order to provide a better understanding of the present invention, but these descriptions are not to be construed as limiting the invention, in particular, The various features described in the embodiments can also be arbitrarily combined with each other to form other embodiments, which are to be understood as being applicable to any one embodiment, and are not limited to the described embodiments. the way.

Claims

A solid fuel combustion apparatus includes a furnace, the furnace is provided with an air inlet for supplying air to the furnace, and a solid fuel feed port, the feed port is disposed at the top of the furnace, and is arranged corresponding to the feed port in the furnace There is a stacking surface for receiving solid fuel entering from the feed port, and a solid fuel forms a stack layer between the feed port and the stacking surface, and a wind supply to the stack layer is formed on one side of the stack layer. a wind side, the other side opposite to the air inlet side is formed as a combustion side; a partition body between the air inlet side and the combustion side is formed by the pile layer; and combustion on the combustion side is formed to be connected to the exhaust gas outlet a cavity, characterized in that: on the combustion side of the stack layer, a baffle is provided which can change the shape of the upper part of the stack, the baffle has a flow allowing structure for allowing airflow; the bottom end of the baffle There is a gap between the faces.
A solid fuel combustion apparatus according to claim 1, wherein said stopper is inclined with respect to a horizontal direction.
A solid fuel combustion apparatus according to claim 2, wherein the baffle is inclined at an angle with respect to the horizontal direction that is less than or equal to a natural stacking gradient of the solid fuel.
A combustion apparatus for a solid fuel according to claim 1, wherein a wall of the top end of the baffle is fixedly connected.
A solid fuel combustion apparatus according to claim 2, wherein the angle of inclination of the retaining weir is substantially the same as the natural stacking gradient of the solid fuel.
A combustion apparatus for a solid fuel according to claim 1, wherein a tip end of said retaining pocket is rotatably coupled to said furnace wall, and a bottom end of said retaining pocket is formed as a free end capable of swinging Adjusting the angle of inclination of the baffle changes the thickness of the upper portion of the stack.
A solid fuel combustion apparatus according to claim 6, wherein the angle of inclination of the baffle is adjusted to be smaller than a natural stacking gradient of the solid fuel.
A combustion apparatus for a solid fuel according to claim 6, wherein the inclination angle of the stopper is infinitely adjustable.
A combustion apparatus for a solid fuel according to claim 6, wherein a rotating shaft end of said baffle extends beyond the outside of the furnace wall, and the baffle is controlled to rotate by a knob or a crank.
The apparatus for burning a solid fuel according to claim 1, wherein the flow-receiving structure of the baffle is a fence structure, a lattice structure, a mesh structure or a louver structure.
A combustion apparatus for a solid fuel according to claim 1, wherein said stack layer is in contact with the inner wall of the furnace at opposite sides between the inlet side and the combustion side, thereby isolating the inlet side from the combustion side. .
A solid fuel combustion apparatus according to claim 11, wherein said furnace upper side of said stacking surface has said opposite side wall faces between the inlet side and the combustion side, and said stack layer is on the inlet side with said stack layer The two sides between the burning sides can be formed The natural stacking slope is uniform or located inside the natural stacking slope such that the two opposite sides of the stacking layer between the inlet side and the burning side are in contact with the inner wall of the furnace.
A solid fuel combustion apparatus according to claim 1, wherein said volatile matter flow path on the combustion side is provided with a flow guiding wall for directing the volatile gas flow toward the lateral combustion flame.
A combustion apparatus for a solid fuel according to claim 1, wherein said flow guiding wall is made of a heat storage material.
A combustion apparatus for a solid fuel according to claim 1, wherein said stacking surface has a void structure for discharging ash, and a ash chamber for receiving ash is disposed below the stacking surface.
A combustion apparatus for a solid fuel according to claim 1, wherein said stacking surface is a closed surface, and an ash discharging device for removing the ash is disposed on the stacking surface, and the stacking surface is located on the burning side The outer side of the end is provided with a ash chamber for receiving the ashes.
A combustion apparatus for a solid fuel according to claim 16, wherein an air inlet from the air inlet to the air inlet side of the stack layer is provided between the air inlet and the air inlet side of the stack layer. a passage, the lower side of the stacking surface is in communication with the inlet passage.
A solid fuel combustion apparatus according to claim 17, wherein said upper surface of said stacking surface has a slope which is inclined downward toward the burning side.
The solid fuel combustion apparatus according to any one of claims 1 to 18, wherein the stopper is of a flat plate type.
The apparatus for burning a solid fuel according to any one of claims 1 to 18, wherein the stopper is curved.
The solid fuel combustion apparatus according to any one of claims 1 to 18, wherein the stopper is stepped.