Stepped combustion furnace for solid hazardous waste disposal

Abstract

The utility model discloses a stepped combustion furnace for solid hazardous waste disposal, and belongs to the technical field of solid hazardous waste combustion furnaces. Comprising a furnace body upper part and a furnace body lower part which are vertically connected and internally communicated, a feeding hole is formed in the furnace body upper part, a scattering device is arranged below the feeding hole, and the scattering device is positioned in the furnace body upper part; the bottom face of the lower portion of the furnace body is of a step-shaped structure, each layer of the step-shaped structure is connected with an air cannon air inlet pipeline, one end of each air cannon air inlet pipeline is located outside the furnace body and used for being connected with an air cannon device, and the other end of each air cannon air inlet pipeline extends into the furnace body and is connected with an air cannon pipeline nozzle. According to the utility model, the stepped design is adopted, so that more materials are not easy to store; a plurality of air cannons are arranged at each step for cleaning and blowing, so that the treated solid wastes can be effectively and timely cleaned; the problem that solid hazardous waste is accumulated and bonded together after being combusted in a combustion furnace and is difficult to clean is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of solid hazardous waste combustion furnaces, in particular to a stepped combustion furnace for solid hazardous waste disposal. Background Art

[0002] At present, there are many types of solid waste. In the cement production process, the solid hazardous waste is mostly paint residue and organic solvents, which have high calorific value. Many existing cement production lines have built solid waste collaborative disposal devices, using the heat generated when treating solid waste as an alternative fuel to reduce the amount of coal used in cement clinker production. While eliminating the pollution of solid waste to the environment, it also increases the disposal income of enterprises.

[0003] The existing solid hazardous waste incinerators have a flat bottom design. When the solid hazardous waste is crushed, mixed into a semi-solid state and transported to the incinerator for disposal, the solid hazardous waste is easily piled up and stuck together after being burned in the incinerator, which makes it difficult to clean and hinders the normal disposal of the incinerator. Utility Model Content

[0004] The utility model overcomes the shortcomings of the prior art, and provides a stepped combustion furnace for solid and hazardous waste disposal, which solves the problem that solid and hazardous wastes are piled up and adhered together after being burned in the combustion furnace and are difficult to clean up.

[0005] In order to achieve the above purpose, the utility model is implemented through the following technical solutions.

[0006] A stepped combustion furnace for solid hazardous waste disposal comprises an upper furnace body and a lower furnace body which are connected up and down and communicate with each other internally, a feed port is arranged at the upper furnace body, a scattering device is arranged below the feed port, and the scattering device is located in the upper furnace body; the bottom surface of the lower furnace body is a stepped structure, and an air cannon air inlet duct is connected to each layer of the stepped structure, one end of the air cannon air inlet duct is outside the furnace body for connecting to the air cannon device, and the other end of the air cannon air inlet duct extends into the furnace body and is connected to the air cannon duct nozzle.

[0007] Furthermore, a hot air duct interface is provided on the upper part of the furnace body, and the hot air duct interface is used to connect the hot air pipeline from the cement burning system.

[0008] Furthermore, a detection port is provided on the upper part of the furnace body, and the detection port is adjacent to the feed port.

[0009] Furthermore, the upper part of the furnace body is a box-type structure with an open bottom, which is formed by welding a top plate, two first side plates, a rear vertical plate, and a front vertical plate.

[0010] Furthermore, reinforcing rib plates that cross horizontally and vertically are welded on the shell of the entire box-type structure.

[0011] Furthermore, the lower part of the furnace body is composed of two second side plates and multiple bottom plates welded together; wherein, the bottom of the second side plate is a stepped structure, the two second side plates are arranged in parallel, and the stepped bottoms of the two second side plates are connected and closed by multiple bottom plates, so that the bottom of the furnace body forms a stepped structure, and the front sides of the two second side plates are the combustion furnace outlet.

[0012] Furthermore, at the outlet of the combustion furnace is an intermediate section welded to the second side plate, and the connecting section is connected to the intermediate section via a flange.

[0013] Furthermore, an inspection door is arranged on each of the two first side panels, and two inspection doors are arranged on each of the second side panels on both sides.

[0014] Furthermore, the breaking up device is a rotating blade driven by a motor.

[0015] The beneficial effects of the utility model compared with the prior art are:

[0016] The utility model adopts a stepped structure design, and multiple air cannons are arranged at each step for blowing, which can effectively and timely clean up the disposed solid waste materials. The utility model can also improve the combustion efficiency of organic matter in solid hazardous waste and increase the system disposal capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The structure of the combustion furnace of the utility model is shown in FIG. Figure 1 .

[0018] Figure 2 The structure of the combustion furnace of the utility model is shown in FIG. Figure 2 .

[0019] Figure 3 The structure of the combustion furnace of the utility model is shown in FIG. Figure 3 .

[0020] In the figure:

[0021] 1 is the top plate, 2 is the first side plate, 3 is the rear vertical plate, 4 is the front vertical plate, 5 is the second side plate, 6 is the bottom plate, 7 is the middle section, 8 is the connecting section, 9 is the reinforcing rib plate, 10 is the air cannon air inlet duct, 11 is the air cannon duct nozzle, 12 is the inspection door, 13 is the hot air duct interface, 14 is the feed port, 15 is the detection port, and 16 is the breaking device. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail in combination with the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. The technical solution of the present invention is described in detail below in combination with the embodiments and the accompanying drawings, but the scope of protection is not limited thereto.

[0023] like Figures 1 to 3 As shown, this embodiment provides a stepped combustion furnace for solid hazardous waste disposal, and the combustion furnace body is composed of an upper furnace body and a lower furnace body:

[0024] The upper part of the furnace body: a box-type structure with an open bottom, which is welded together by a top plate 1, two first side plates 2, a rear vertical plate 3, and a front vertical plate 4. The shell of the entire box-type structure is welded with reinforcing ribs 9 that cross horizontally and vertically to improve the strength of the upper part of the entire furnace body. The feed port 14 is designed at the front of the top plate 1. A scattering device 16 is installed below the feed port 14. The scattering device 16 is located in the furnace body. The scattering device 16 uses a rotating blade driven by a motor to impact and scatter the solid hazardous waste entering the furnace body. A detection port 15 is provided on the top plate 1 adjacent to the feed port 14, and a hot air duct interface 13 is provided in the middle of the front vertical plate 4. The hot air duct interface 13 is connected to the air duct. An inspection door 12 is arranged on each of the two first side plates 2.

[0025] The lower part of the furnace body: It is composed of two second side panels 5, a bottom plate 6, and an intermediate section 7 welded together, wherein the bottom of the second side panel 5 is a stepped structure, the two second side panels 5 are arranged in parallel, and the stepped bottoms of the two second side panels 5 are connected and closed by multiple bottom plates 6, so that the bottom of the furnace body forms a stepped structure, and three air cannon air inlet ducts 10 are arranged at each step of the bottom plate 6 of the step, one end of the air cannon air inlet duct 10 is outside the furnace body for connecting the air cannon device, and the other end of the air cannon air inlet duct 10 extends into the furnace body and is connected to the air cannon duct nozzle 11. Two inspection doors 12 are arranged on the second side panels 5 on both sides.

[0026] The front sides of the two second side plates 5 are the combustion furnace outlets, at the combustion furnace outlets there is a middle section 7 welded to the second side plates 5 , and a connecting section 8 is connected to the middle section 7 via a flange.

[0027] When installing the whole part of the step-type combustion furnace of the utility model, the feed port 14, the detection port 15, and the hot air duct interface 13 need to be made according to the actual location and size on site. Then the upper part and the lower part of the furnace body are assembled and welded on the ground on site, and finally hoisted and welded on site. After the overall installation is completed, refractory materials are poured inside the combustion furnace to protect the combustion furnace.

[0028] Working principle: The feed port 14 of the stepped combustion furnace of the utility model is connected to the solid waste semi-solid conveying system, the detection port 15 is used to install monitoring and detection equipment, and the hot air duct interface 13 is used to connect the hot air pipeline from the cement burning system. After the semi-solid solid waste enters the combustion furnace from the feed port 14, it is dispersed by the dispersion device 16 below, and then dried by the hot air blown in from the hot air duct interface 13, and fully burned in the combustion furnace to transport heat for the subsequent decomposition furnace. After the solid waste is burned, the solid waste residue is cleaned up by blowing from the air cannon air inlet duct 10 from the outside. Due to the step design of the bottom, it is not easy to store more materials. When the combustion furnace is working normally, it can be monitored by the monitoring equipment installed at the detection port 15 to timely understand the situation in the furnace and ensure the stable operation of the combustion furnace.

[0029] The above content is a further detailed description of the utility model in combination with a specific preferred implementation method. It cannot be determined that the specific implementation methods of the utility model are limited to this. For ordinary technicians in the technical field to which the utility model belongs, they can make several simple deductions or substitutions without departing from the utility model, which should be regarded as belonging to the utility model and the scope of patent protection determined by the submitted claims.

Claims

1. A stepped combustion furnace for solid and hazardous waste disposal, characterized in that: The invention comprises an upper furnace body and a lower furnace body which are connected to each other and communicate with each other internally, wherein the upper furnace body is provided with a feed port (14), and a scattering device (16) is provided below the feed port (14), and the scattering device (16) is located in the upper furnace body; the bottom surface of the lower furnace body is a stepped structure, and an air cannon air inlet duct (10) is connected to each layer of the stepped structure, and one end of the air cannon air inlet duct (10) is outside the furnace body for connecting to the air cannon device, and the other end of the air cannon air inlet duct (10) extends into the furnace body and is connected to the air cannon duct nozzle (11).

2. A stepped combustion furnace for solid and hazardous waste disposal according to claim 1, characterized in that: A hot air duct interface (13) is provided on the upper part of the furnace body, and the hot air duct interface (13) is used to connect a hot air pipeline from a cement burning system.

3. The stepped combustion furnace for solid and hazardous waste disposal according to claim 1, characterized in that: A detection port (15) is provided at the upper portion of the furnace body, and the detection port (15) is adjacent to the feed port (14).

4. The stepped combustion furnace for solid and hazardous waste disposal according to claim 1, characterized in that: The upper part of the furnace body is a box-type structure with an open bottom, which is formed by welding a top plate (1), two first side plates (2), a rear vertical plate (3), and a front vertical plate (4).

5. The stepped combustion furnace for solid and hazardous waste disposal according to claim 4, characterized in that: The entire box-type structure shell is welded with reinforcing rib plates (9) that cross each other in the horizontal and vertical directions.

6. The stepped combustion furnace for solid and hazardous waste disposal according to claim 4, characterized in that: The lower part of the furnace body is formed by welding two second side plates (5) and a plurality of bottom plates (6); wherein the bottom of the second side plate (5) is a stepped structure, the two second side plates (5) are arranged in parallel, and the stepped bottoms of the two second side plates (5) are connected and sealed by a plurality of bottom plates (6), so that the bottom of the furnace body forms a stepped structure, and the front sides of the two second side plates (5) are the outlets of the combustion furnace.

7. A stepped combustion furnace for solid and hazardous waste disposal according to claim 6, characterized in that: At the outlet of the combustion furnace is an intermediate section (7) welded to the second side plate (5), and a connecting section (8) is connected to the intermediate section (7) via a flange.

8. The stepped combustion furnace for solid and hazardous waste disposal according to claim 6, characterized in that: An inspection door (12) is arranged on each of the two first side panels (2), and two inspection doors (12) are arranged on each of the second side panels (5) on both sides.

9. The stepped combustion furnace for solid and hazardous waste disposal according to claim 1, characterized in that: The breaking device (16) is a rotating blade driven by a motor.

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