A waste gasification furnace

Abstract

The application discloses a garbage gasification furnace, which comprises a combustion cavity, the combustion cavity comprises a first chamber and a second chamber which are communicated with each other, the top of the second chamber is provided with a feeding port and an exhaust port, the feeding port is provided below with a feeding port pushing assembly, the second chamber comprises a first side wall arranged obliquely and a second side wall arranged oppositely to the first side wall, and the lower part of the second chamber is provided with a horizontal pushing assembly, the inside of the horizontal pushing assembly is provided with a first air supply pipe which is communicated with the outside, and the horizontal pushing assembly is used for loosening garbage and providing combustion-supporting air. The application has the advantages of high combustion efficiency, energy saving and environmental protection.

Description

TECHNICAL FIELD

[0001] The present application mainly relates to the field of waste incineration equipment, in particular to a waste gasification furnace. BACKGROUND

[0002] At present, three methods of landfill, composting and incineration are basically adopted to solve the urban domestic waste. Compared with landfill and composting, the incineration method has the characteristics of volume reduction, weight reduction, on-site treatment, fast treatment speed, heat energy recovery and high degree of harmlessness. Therefore, domestic waste incineration for power generation is an important way for developing new energy and disposing domestic waste. However, the existing waste incineration device still has the following problems: high investment cost of equipment, large occupied area, unstable and uneven combustion, and low burnout rate.

[0003] Waste gasification is one of the new technologies of waste incineration. Compared with the traditional waste incineration technology, the waste gasification makes the waste gasify into combustible gas in an oxygen-free or oxygen-deficient environment, which more effectively reduces the generation of dioxin, and compared with the traditional incinerator, the waste gasification produces less flue gas dust and is easy to handle. SUMMARY

[0004] In view of the technical problems existing in the prior art, the present application provides a waste gasification furnace with high combustion efficiency, energy saving and environmental protection.

[0005] To solve the above technical problems, the present application adopts the following technical scheme:

[0006] A waste gasification furnace comprises a combustion cavity, the combustion cavity comprises a first chamber and a second chamber which are in communication with each other, the top of the second chamber is provided with a feeding port and an exhaust port, a feeding port pushing assembly is arranged below the feeding port, the second chamber comprises a first side wall arranged obliquely and a second side wall arranged opposite to the first side wall, a horizontal pushing assembly is arranged at the lower part of the second chamber, the inside of the horizontal pushing assembly is provided with a first air supply pipe in communication with the outside, and the horizontal pushing assembly is used for loosening the waste and providing combustion-supporting air.

[0007] As a further improvement of the present application, the second side wall is arc-shaped.

[0008] As a further improvement of the present application, the combustion cavity further comprises a slag collecting chamber in communication with the first chamber and a slag pushing piece, the slag pushing piece reciprocates in the horizontal direction to push the burned slag into the slag collecting chamber.

[0009] As a further improvement of the present application, the bottom of the combustion cavity is provided with at least one top loosening device, the top loosening device moves up and down in the vertical direction to loosen the waste.

[0010] As a further improvement of the present application: the top loosening device is provided with a second air supply pipe which is in communication with the outside.

[0011] As a further improvement of the present application: the top of the top loosening device is provided with a tapered tip.

[0012] As a further improvement of the present application: the side wall of the first chamber is provided with at least one first air supply hole.

[0013] As a further improvement of the present application: the side wall of the second chamber is provided with at least one second air supply hole.

[0014] As a further improvement of the present application: an acid removing device is further included, which is used for spraying acid removing substances into the combustion chamber.

[0015] As a further improvement of the present application: a gas injection device is further included, which is used for spraying combustion-supporting gas into the combustion chamber.

[0016] As a further improvement of the present application: the acid removing device includes a plurality of spray heads.

[0017] As a further improvement of the present application: a first air supply pipe and a boiler mechanism are further included, one end of the air supply pipe is in communication with the exhaust port, the other end of the first air supply pipe is in communication with the second chamber through the boiler mechanism, and the air supply pipe is used for guiding hot air into the second chamber.

[0018] As a further improvement of the present application: a secondary combustion chamber is further included, which is in communication with the exhaust port through a second air supply pipe.

[0019] As a further improvement of the present application: an acid removing device is provided in the secondary combustion chamber, which is used for spraying acid removing substances into the secondary combustion chamber.

[0020] As a further improvement of the present application: the secondary combustion chamber is provided with an air outlet, which is in communication with the second chamber through a third air supply pipe.

[0021] Compared with the prior art, the present application has the following advantages:

[0022] 1. The waste gasification furnace of the present application, waste is grabbed from the inlet by a mechanical arm, and is pushed into the second chamber by the inlet pushing assembly, and quickly slides along the first side wall of the second chamber to burn, when the amount of waste entering increases and accumulates into a group, the lower part of the second chamber is provided with a horizontal pushing assembly, which moves back and forth in the horizontal direction, loosens the accumulated waste, and introduces air into the second chamber through the first air supply pipe to make the waste fully contact with the air, the arc-shaped second side wall forms a circulation of the guide gas in the second chamber, so that the waste is more fully burned, avoiding the problem of low combustion efficiency due to insufficient burning of the accumulated waste.

[0023] 2. The waste gasification furnace of the present application, waste is burned in the second chamber for the first time, and under the pushing of the horizontal pushing assembly, the accumulated waste is loosened and falls into the first chamber for secondary combustion, the bottom of the combustion chamber is provided with a loosening device, which lifts the accumulated waste at the bottom of the first chamber in the vertical direction, the waste is loosened during the lifting process, and air is introduced through the second air supply pipe in the loosening device to make the waste fully contact with the air, promote the waste to burn more fully, and greatly improve the combustion rate of the waste through the two air supply combustion assisting modes.

[0024] 3. The waste gasification furnace of the present application, waste is burned in the combustion chamber, and high-temperature flue gas is continuously generated, the high-temperature flue gas generated during the incineration of the waste is introduced into the second chamber through the gas supply pipe, which is beneficial to dry the wet waste just entering, realizes the recycling of heat energy, and has good energy-saving effect.

[0025] 4. The waste gasification furnace of the present application, a slag collecting chamber is arranged below the first chamber and communicates with the first chamber, when the waste is completely burned for the second time, the slag pushing assembly reciprocates in the horizontal direction to push the slag into the slag collecting chamber, realizing automatic cleaning of the slag, and greatly reducing the labor intensity. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a sectional view of the present application in embodiment one.

[0027] Figure 2 It is a sectional view of the present application in embodiment two.

[0028] LEGEND:

[0029] 1, first chamber; 2, second chamber; 21, first side wall; 22, second side wall; 3, feeding inlet; 4, horizontal pushing assembly; 41, first air feeding pipe; 5, top loosening device; 51, second air feeding pipe; 52, conical tip; 6, first air feeding hole; 7, second air feeding hole; 8, acid removing device; 81, spray head; 9, first gas feeding pipe; 10, exhaust outlet; 11, feeding inlet pushing assembly; 12, boiler mechanism; 13, slag collecting chamber; 14, slag discharging pushing piece; 15, secondary combustion chamber; 16, second gas feeding pipe; 17, third gas feeding pipe; 18, jetting device. DETAILED DESCRIPTION

[0030] The application will be further described below in conjunction with the accompanying drawings and specific preferred embodiments, but the protection scope of the application should not be limited thereby.

[0031] In the description of the application, it should be understood that the orientation or positional relationship indicated by the terms "side", "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0032] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated, so that the features with "first" and "second" can explicitly or implicitly include one or more of the features, and in the description of the application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0033] The application will be further described below in conjunction with the accompanying drawings and specific preferred embodiments, but the protection scope of the application should not be limited thereby.

[0034] Example One

[0035] As Figure 1As shown, the embodiment provides a waste gasification furnace, which comprises a combustion cavity, the combustion cavity comprises a first chamber 1 and a second chamber 2 which are communicated with each other, the top of the first chamber 1 is provided with an inlet 3 and an exhaust port 10, the inlet 3 is provided below with an inlet pushing assembly 11, the second chamber 2 comprises a first side wall 21 arranged obliquely and a second side wall 22 arranged opposite to the first side wall 21, the lower part of the second chamber 2 is provided with a horizontal pushing assembly 4, the inside of the horizontal pushing assembly 4 is provided with a first air supply pipe 41 which is communicated with the outside, and the horizontal pushing assembly 4 is used for loosening the waste and providing air for combustion.

[0036] In the embodiment, the first side wall 21 is a slope with a length of about 20 meters, and the included angle between the first side wall 21 and the horizontal plane is not less than 45 degrees. The outer wall of the combustion cavity adopts a double-layer structure and is provided with a cavity, and air or heat exchange medium can be introduced into the cavity.

[0037] In the embodiment, the side wall of the inlet 3 is provided with a gas injection hole, and dry gas can be introduced into the gas injection hole to dry the waste.

[0038] In the embodiment, the second side wall 22 is designed as an arc shape.

[0039] The waste is grabbed by a mechanical arm from the inlet 3 and pushed into the second chamber 2 by the inlet pushing assembly 11, and the waste quickly slides along the obliquely arranged first side wall 21 to the second chamber 2 for combustion. When the amount of the waste entering increases and accumulates into a group, the horizontal pushing assembly 4 arranged at the lower part of the second chamber 2 moves back and forth in the horizontal direction to loosen the waste accumulated into a group, and air is introduced into the first chamber 1 through the first air supply pipe 41 to make the waste fully contact with the air. The arc-shaped second side wall 21 guides the gas to form a circulation in the first chamber 1, so that the waste is more fully combusted, and the problem of low combustion efficiency caused by insufficient combustion of the waste accumulated into a group is avoided.

[0040] In the embodiment, the combustion cavity further comprises a slag collecting cavity 13 and a slag pushing piece 14 which are communicated with the first chamber 1, and the slag pushing piece 14 reciprocates in the horizontal direction to push the combusted slag into the slag collecting cavity 13. When the waste is completely combusted for the second time, the slag pushing piece 14 reciprocates in the horizontal direction to push the slag into the slag collecting cavity 13, so that the slag is automatically cleaned, and the labor intensity is greatly reduced.

[0041] In this embodiment, the bottom of the combustion cavity is provided with at least one top loosening device 5, which moves up and down in the vertical direction to loosen the garbage. The garbage is subjected to the first combustion in the second chamber 2, and under the pushing of the horizontal pushing assembly 4, the gathered garbage is loosened and dispersed to fall into the first chamber 1 for the second combustion. The garbage that is accumulated in the form of a group at the bottom of the first chamber 1 is lifted up in the vertical direction by the top loosening device 5, and in the process of lifting, the garbage is loosened, and air is introduced through the second air supply pipe 51 in the top loosening device 5, so that the garbage is fully contacted with the air, and the garbage is promoted to be more fully combusted. The combustion-supporting by twice ventilation greatly improves the burnout rate of the garbage.

[0042] In this embodiment, the top end of the top loosening device 5 is provided with a tapered tip 52. The up-and-down movement of the tapered tip 52 can loosen and disperse the gathered large pieces of garbage, which is beneficial to the full combustion of the garbage.

[0043] In this embodiment, the side wall of the first chamber 1 is provided with at least one first air supply hole 6, and the side wall of the second chamber 2 is provided with at least one second air supply hole 7. The first air supply hole 6 and the second air supply hole 7 are connected with an air compressor or a fan, and air is introduced into the first chamber 1 and the second chamber 2, which is helpful to the full combustion of the garbage.

[0044] In this embodiment, it also includes an acid removal device 8 for spraying acid-removing substances (such as alkaline liquid, lime, etc.) into the combustion cavity. The acid removal device 8 includes a plurality of spray heads 81 for uniformly spraying alkaline substances to reduce the emission of HCL, SO2 and other acid gases generated in the garbage incineration process, and reduce the impact on the environment.

[0045] In this embodiment, it also includes a gas injection device 18 for injecting combustion-supporting gas into the combustion cavity to make the garbage incineration more sufficient.

[0046] In this embodiment, it also includes a first gas supply pipe 9 and a boiler mechanism 12. One end of the first gas supply pipe 9 is communicated with an exhaust port 10, and the other end of the first gas supply pipe 9 is communicated with the second chamber 2 through the boiler mechanism 12. A first side wall 21 is provided with an air supply port for hot flue gas, and the first gas supply pipe 9 introduces the hot flue gas into the second chamber 2 through the air supply port. Since the flue gas generated by the garbage incineration still has a large amount of heat, and the garbage entering from the feeding port 3 is relatively moist in the initial state, the high-temperature flue gas generated in the garbage incineration process is introduced into the boiler mechanism 12 through the first gas supply pipe 9 for utilization and then introduced into the second chamber 2, which is beneficial to promoting the rapid drying of the garbage, and realizes the recycling of heat energy, and has good energy-saving effect.

[0047] The working principle is as follows: garbage is grabbed by the robotic arm and enters from the feed port 3, and is pushed into the second chamber 2 through the feed port pushing assembly 11. The garbage quickly slides along the inclined first side wall 21 to the second chamber 2 for combustion. When the amount of garbage entering increases and accumulates into a mass, the horizontal pushing assembly 4 set at the lower part of the second chamber 2 moves back and forth in the horizontal direction to loosen the accumulated garbage, and introduces air into the first chamber 1 through the first air supply pipe 41 so that the garbage is fully in contact with the air. The curved second side wall 22 will guide the gas to circulate in the first chamber 1, so that the garbage is more fully burned, and the garbage undergoes the first combustion in the second chamber 2. Secondary combustion: Under the push of the horizontal pushing assembly 4, the clumped garbage is loosened and dispersed and falls into the first chamber 1 for secondary combustion. A loosening device 5 is provided at the bottom of the combustion chamber, and the garbage that has fallen into the bottom of the first chamber 1 and piled up in a clumping state is lifted up in the vertical direction by the loosening device 5. During the lifting process, the garbage is loosened, and air is introduced through the second air supply pipe 51 in the loosening device 5, so that the garbage is fully in contact with the air, which promotes more complete combustion of the garbage. The burnout rate of the garbage is greatly improved by the two-way ventilation and combustion-aiding method; the slag after combustion is pushed into the slag collecting chamber 13 by the slag discharge pusher 14 reciprocating in the horizontal direction, so as to realize automatic cleaning of the slag.

[0048] Example 2

[0049] like Figure 2 As shown, this embodiment is basically the same as the first embodiment, except that it further includes a secondary combustion chamber 15, which is connected to the exhaust port 10 via a second air supply pipe 16. As the garbage burns in the combustion chamber, some incompletely burned combustibles may be present in the flue gas. The flue gas passes directly through the exhaust port 10 and the second air supply pipe 16 into the secondary combustion chamber 15 without passing through the boiler mechanism 12. By further burning the flue gas, the combustibles can be burned to the greatest extent possible, further reducing resource waste.

[0050] In this embodiment, the secondary combustion chamber 15 is provided with an air outlet, which is connected to the second chamber 2 through the third air supply pipe 17. The hot gas generated by the combustion in the secondary combustion chamber 15 is reintroduced into the second chamber 2 through the third air supply pipe 17, thereby realizing the recovery and utilization of heat energy and having a good energy-saving effect.

[0051] In this embodiment, an acid removal device 8 is provided in the secondary combustion chamber 15. The acid removal device 8 is used to spray acid removal substances (such as alkaline liquid, lime, etc.) into the secondary combustion chamber 15. By evenly spraying the alkaline substances, the emission of acidic gases such as HCL and SO2 generated during the waste incineration process is reduced, thereby reducing the impact on the environment.

[0052] The above are only preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical scheme falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled in the art, some improvements and refinements without departing from the principles of the present application shall be considered as the protection scope of the present application.

Claims

1. A garbage gasification furnace, characterized in that: The invention comprises a combustion chamber, wherein the combustion chamber comprises a first chamber (1) and a second chamber (2) which are interconnected, a feed port (3) and an exhaust port (10) being provided at the top of the second chamber (2), a feed port pushing assembly (11) being provided below the feed port (3), the second chamber (2) comprising a first side wall (21) arranged obliquely and a second side wall (22) arranged opposite to the first side wall (21), the angle between the first side wall (21) and the horizontal plane being not less than 45 degrees, and the second side wall (22) being arc-shaped; a horizontal pushing assembly (4) being provided at the lower part of the second chamber (2), a first air supply pipe (41) communicating with the outside being provided inside the horizontal pushing assembly (4), the horizontal pushing assembly (4) being used to loosen the garbage and provide combustion-supporting air; at least one top loosening device (5) being provided at the bottom of the combustion chamber, the top loosening device (5) moving up and down in the vertical direction to loosen the garbage; a second air supply pipe (51) communicating with the outside being provided inside the top loosening device (5).

2. The garbage gasification furnace according to claim 1, characterized in that: The combustion chamber further comprises a slag collecting chamber (13) and a slag discharge pusher (14) in communication with the first chamber (1); the slag discharge pusher (14) reciprocates in a horizontal direction to push the burned slag into the slag collecting chamber (13).

3. The garbage gasification furnace according to claim 1, characterized in that: The top end of the loosening device (5) is provided with a cone tip (52).

4. The garbage gasification furnace according to claim 1, characterized in that: At least one first air supply hole (6) is provided on the side wall of the first chamber (1).

5. The garbage gasification furnace according to claim 1, characterized in that: At least one second air supply hole (7) is provided on the side wall of the second chamber (2).

6. The garbage gasification furnace according to any one of claims 1 to 5, characterized in that: It also includes an acid removal device (8), which is used to inject acid removal material into the combustion chamber.

7. The garbage gasification furnace according to any one of claims 1 to 5, characterized in that: It also includes an injection device (18), which is used to inject combustion-supporting gas into the combustion chamber.

8. The garbage gasification furnace according to claim 6, characterized in that: The acid removal device (8) includes a plurality of spray heads (81).

9. The garbage gasification furnace according to any one of claims 1 to 5, characterized in that: It also includes a first air supply pipe (9) and a boiler mechanism (12), wherein one end of the first air supply pipe (9) is connected to the exhaust port (10), and the other end of the first air supply pipe (9) is connected to the second chamber (2) through the boiler mechanism (12), and the first air supply pipe (9) is used to reintroduce hot air into the second chamber (2).

10. The garbage gasification furnace according to any one of claims 1 to 4, characterized in that: It also includes a secondary combustion chamber (15), which is connected to the exhaust port (10) via a second air supply pipe (16).

11. The garbage gasification furnace according to claim 10, characterized in that: An acid removal device (8) is provided in the secondary combustion chamber (15), and the acid removal device (8) is used to inject an acid removal substance into the secondary combustion chamber (15).

12. The garbage gasification furnace according to claim 10, characterized in that: The secondary combustion chamber (15) is provided with an air outlet, and the air outlet is connected to the second chamber (2) through a third air supply pipe (17).

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