Household garbage incineration low-temperature power generation device

Abstract

The utility model relates to the technical field of garbage power generation, in particular to a household garbage incineration low-temperature power generation device, and aims to solve the problems that in the prior art, when garbage is stacked in an incinerator, the garbage on the upper layer is deflagrated, and the garbage on the lower layer is not combustible. The two ends of the stirring frame are rotationally connected with shaft ends of cylinders, holes are formed in the cylinders, pressing plates are connected to the cylinders, the rotation range of the pressing plates is concentric with the semicircular grid plates, and the pressing plates make contact with the inner walls of the semicircular grid plates. A spiral feeder and an air inlet pipe are arranged on the upper portion of the incinerator. During low-temperature combustion, the cylinder rotates at a low speed, the pressing plate and the semicircular grid plate are matched to keep garbage overturning, meanwhile, the contact area between the lower garbage and air is reduced, the lower garbage is kept in contact with the air through the cylinder holes, and therefore low-temperature uniform incineration is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of garbage power generation, and specifically relates to a low-temperature power generation device for burning domestic garbage. Background Art

[0002] Low-temperature power generation from the incineration of domestic waste is an emerging technology for waste treatment and energy recovery. It mainly utilizes the heat energy released during the incineration process of domestic waste and converts it into electrical energy through a specific thermodynamic cycle system. Different from traditional high-temperature power generation methods, low-temperature power generation technology realizes energy conversion within a relatively low temperature range. Traditional waste incineration power generation technology operates at high temperatures. Although it can produce higher steam parameters to drive steam turbines to generate electricity, there is a lot of heat loss during the energy conversion process. Low-temperature power generation technology can better match the low-temperature heat energy generated by waste incineration by adopting suitable low-boiling point organic working fluids or ammonia water mixtures, reducing irreversible losses caused by excessive temperature differences and improving energy utilization efficiency. According to research, in some cases, the energy conversion efficiency of low-temperature power generation technology can be improved by 10% - 20% compared with traditional high-temperature power generation technology;

[0003] The existing technology only controls the temperature by controlling the air intake. When garbage is stacked in the furnace, the upper garbage will explode while the lower garbage will not burn, making it difficult to effectively control the temperature. The present invention solves the above problem. Utility Model Content

[0004] In order to solve the technical problem that the existing technology only controls the temperature by controlling the air intake, and when garbage is stacked in the furnace, the upper layer of garbage explodes while the lower layer of garbage does not burn, making it difficult to effectively control the temperature, the utility model provides a low-temperature power generation device for incinerating domestic garbage.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-temperature power generation device for incinerating domestic waste, comprising: an incinerator, the incinerator and the ash furnace are connected by a stirring frame, the lower part of the stirring frame is connected to a semicircular grate plate, the semicircular grate plate is provided with grate holes, the two ends of the stirring frame are rotatably connected to the shaft end of a cylinder, a hole is provided on the cylinder, a pressure plate is connected to the cylinder, the rotation range of the pressure plate is concentric with the semicircular grate plate and contacts with the inner wall of the semicircular grate plate, a spiral feeder and an air inlet pipe are provided on the upper part of the incinerator, a smoke exhaust pipe is connected to the ash furnace, and a burner is provided in the incinerator.

[0006] Preferably, the barrel of the screw feeder is connected to the incinerator through an upper spherical cover, the top wall of the incinerator is connected to a lower spherical cover, the lower part of the lower spherical cover is provided with an opening, the upper spherical cover and the lower spherical cover are two parts of the same sphere, the upper spherical cover and the top wall of the incinerator inside the lower spherical cover are rotatably connected with the sealing leaf shaft end, the sealing leaf contacts the inner wall of the upper spherical cover, the barrel of the screw feeder is eccentrically connected to the upper spherical cover, and the barrel is located on the upper part of the sealing leaf on one side.

[0007] Preferably, the side wall of the incinerator is connected with a fuel pipe, the fuel pipe is located at the upper part between adjacent semicircular grate plates, the fuel pipe is connected to the ignition nozzle, and the ignition nozzle points to the semicircular grate plates on both sides respectively.

[0008] Preferably, the lower part of the ash furnace is connected to an ash hopper, and an ash valve is provided at the lower end of the ash hopper.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] During high-temperature combustion, the cylinder is controlled to rotate rapidly, and the pressing plate lifts the garbage to fully immerse it in the air, and the ashes enter the lower part of the semicircular grate plate. During low-temperature combustion, the cylinder rotates slowly, and the pressing plate and the semicircular grate plate cooperate to keep the garbage turning while reducing the contact area between the lower garbage and the air and keeping the lower garbage in contact with the air through the cylinder holes, thus achieving low-temperature and uniform incineration;

[0011] The spiral feeder drives the garbage to push the sealing leaves to rotate and transport the garbage downward. When the sealing leaves rotate, they contact the upper and lower ball covers to maintain a seal, and the smoke will not flow back through the spiral feeder. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0013] Figure 2 It is a schematic diagram of the structural cross section of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the utility model Figure 2 .

[0015] In the figure: incinerator 1; ash furnace 2; stirring frame 3; semicircular grate plate 4; grate hole 5; cylinder 6; hole 7; pressing plate 8; screw feeder 9; air inlet pipe 10; smoke exhaust pipe 11; upper ball cover 12; lower ball cover 13; sealing leaf 14; fuel pipe 15; ignition nozzle 16; ash hopper 17. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] The rotational connection described in this device refers to the process of baking the bearing on the shaft, providing a spring retaining ring groove on the shaft or the shaft hole, and clamping the elastic retaining ring in the retaining ring groove to achieve axial fixation of the bearing and realize rotation; the articulation refers to a connection method that is achieved by performing activities on connecting parts such as hinges, pins and short shafts.

[0018] The present invention will be described in detail below with reference to the accompanying drawings. Example

[0019] The following is combined with Figure 1-3 The present embodiment describes a low-temperature power generation device for incinerating domestic waste, including: an incinerator 1, wherein the incinerator 1 is connected to an ash furnace 2 via a stirring frame 3, a semicircular grate plate 4 is connected to the lower portion of the stirring frame 3, and a grate hole 5 is provided on the semicircular grate plate 4. Both ends of the stirring frame 3 are rotatably connected to the shaft ends of a cylinder 6, a hole 7 is provided on the cylinder 6, and a pressing plate 8 is connected to the cylinder 6. The pressing plate 8 rotates concentrically with the semicircular grate plate 4 and contacts the inner wall of the semicircular grate plate 4. A screw feeder 9 and an air inlet pipe 10 are provided on the upper portion of the incinerator 1, a smoke exhaust pipe 11 is connected to the ash furnace 2, and a burner is provided in the incinerator 1;

[0020] Garbage is fed into the incinerator 1 through the screw feeder 9, the burner ignites the garbage, the air inlet pipe 10 provides air for garbage combustion, and the smoke is discharged through the exhaust pipe 11. The cylinder 6 drives the pressure plate 8 to rotate to lift the garbage and fully contact it with the air, so that the combustion is sufficient. During low-temperature incineration, the air supply is reduced, and the rotation of the cylinder 6 is reduced. The cylinder 6 drives the garbage into the gap between the semicircular grate plate 4 and the pressure plate 8 through the pressure plate 8, reducing the contact area between the garbage and the air in the gap but keeping it in contact with the air through the hole 7, so that all the garbage will not be accumulated and stratified while being evenly in contact with the relatively thin air, thus achieving low-temperature and uniform incineration.

[0021] The barrel of the screw feeder 9 is connected to the incinerator 1 through the upper spherical cover 12. The top wall of the incinerator 1 is connected to the lower spherical cover 13. The lower part of the lower spherical cover 13 is provided with an opening. The upper spherical cover 12 and the lower spherical cover 13 are two parts of the same sphere. The upper spherical cover 12 and the lower spherical cover 13 are rotatably connected to the top wall of the incinerator 1 inside the upper spherical cover 12 and the lower spherical cover 13. The shaft end of the sealing leaf 14 is in contact with the inner wall of the upper spherical cover 12. The barrel of the screw feeder 9 is eccentrically connected to the upper spherical cover 12, and the barrel is located above the sealing leaf 14 on one side.

[0022] When the spiral feeder 9 transports garbage, the garbage pushes the sealing leaf 14 on one side, and the sealing leaf 14 rotates. Since the sealing leaf 14 contacts the inner wall of the upper spherical cover 12, when the garbage is discharged through the lower opening of the lower spherical cover 13, the sealing leaf 14 maintains the seal on the connection between the spiral feeder 9 and the upper spherical cover 12, so that the smoke will not flow back. In this way, continuous feeding is achieved while combustion is being carried out, and there is no need to close the spiral feeder 9 during combustion.

[0023] The side wall of the incinerator 1 is connected to a fuel pipe 15, which is located at the upper part between the adjacent semicircular grate plates 4. The fuel pipe 15 is connected to an ignition nozzle 16, which points to the semicircular grate plates 4 on both sides.

[0024] Fuel is injected through the fuel pipe 15, and the ignition nozzle 16 ignites the fire, and the flame is sprayed toward the semicircular grate plates 4 on both sides, thereby conveniently igniting the garbage on both sides.

[0025] The lower part of the ash furnace 2 is connected to an ash hopper 17, and an ash valve is provided at the lower end of the ash hopper 17;

[0026] Ash is accumulated at the lower part along the slope of the ash hopper 17, and the flue gas is discharged from the exhaust pipe 11 of the ash furnace 2 to complete the separation. When discharging ash, the exhaust pipe 11 is closed and the ash hopper 17 valve is opened. The flue gas assists the ash to be discharged to complete the ash discharge.

[0027] In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0028] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0029] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A low-temperature power generation device for incinerating domestic waste, characterized by: include: An incinerator (1) is connected to an ash furnace (2) through a stirring frame (3), a semicircular grate plate (4) is connected to the lower part of the stirring frame (3), a grate hole (5) is provided on the semicircular grate plate (4), both ends of the stirring frame (3) are rotatably connected to the shaft end of a cylinder (6), a hole (7) is provided on the cylinder (6), a pressing plate (8) is connected to the cylinder (6), the rotation range of the pressing plate (8) is concentric with the semicircular grate plate (4) and contacts the inner wall of the semicircular grate plate (4), a screw feeder (9) and an air inlet pipe (10) are provided on the upper part of the incinerator (1), a smoke exhaust pipe (11) is connected to the ash furnace (2), and a burner is provided in the incinerator (1).

2. The low-temperature power generation device for burning domestic waste according to claim 1, characterized in that: The barrel of the screw feeder (9) is connected to the incinerator (1) through the upper ball cover (12), the top wall of the incinerator (1) is connected to the lower ball cover (13), the lower part of the lower ball cover (13) is provided with an opening, the upper ball cover (12) and the lower ball cover (13) are two parts of the same sphere, the upper ball cover (12) and the lower ball cover (13) are rotatably connected to the top wall of the incinerator (1) in the lower ball cover (13), the sealing leaf (14) is in contact with the inner wall of the upper ball cover (12), the barrel of the screw feeder (9) is eccentrically connected to the upper ball cover (12), and the barrel is located on the upper part of the sealing leaf (14) on one side.

3. The low-temperature power generation device for burning domestic waste according to claim 1, characterized in that: The side wall of the incinerator (1) is connected to a fuel pipe (15), which is located at the upper part between adjacent semicircular grate plates (4). The fuel pipe (15) is connected to an ignition nozzle (16), which points to the semicircular grate plates (4) on both sides.

4. The low-temperature power generation device for burning domestic waste according to claim 1, characterized in that: The lower part of the ash furnace (2) is connected to an ash hopper (17), and an ash valve is provided at the lower end of the ash hopper (17).

Images