Rotary kiln for hazardous waste combustion

Abstract

The utility model relates to the technical field of hazardous waste treatment, and discloses a rotary kiln for hazardous waste combustion. The rotary kiln for hazardous waste combustion comprises a rotary kiln body, the outer side of the rotary kiln body is connected with an installation cover, heat dissipation holes are formed in the upper portion of the outer surface of the installation cover, the inner wall of the installation cover is connected with a semiconductor, the inner wall of the semiconductor is movably connected with a copper flow deflector, and the inner wall of the copper flow deflector is connected with a refrigeration face. The outer surface of the mounting cover is connected with a mounting sleeve, and the inner wall of the refrigeration face is connected with a rotary kiln body. The refrigeration face is connected to the outer surface of the rotary kiln body in an attached mode, under the condition that the rotary kiln discharges hazardous waste burning slag, the surface of the rotary kiln is prevented from scalding workers, the cooling effect on the slag is conveniently achieved, the slag is conveniently and timely transferred for use, the blockage condition of the kiln tail of the rotary kiln is avoided, and the production efficiency is improved. The working efficiency of hazardous waste combustion is improved, and the rotary kiln for hazardous waste combustion can be conveniently used.

Description

Technical Field

[0001] The utility model relates to the technical field of hazardous waste treatment, in particular to a rotary kiln for burning hazardous waste. Background Technique

[0002] A rotary kiln refers to a rotary calcination kiln (commonly known as a rotary kiln). Rotary kilns can be divided into cement kilns, metallurgical and chemical kilns, and lime kilns according to the materials processed. Cement kilns are mainly used for calcining cement clinker, and are divided into two major categories: dry-process cement kilns and wet-process cement kilns. Metallurgical and chemical kilns are mainly used in the metallurgical industry for magnetization roasting of lean iron ore in steel plants; oxidation roasting of chromium and nickel iron ore; roasting of bauxite in refractory material plants and roasting of clinker and aluminum hydroxide in aluminum plants; roasting of chromite sand and chromite powder and other minerals in chemical plants. Lime kilns (i.e., active lime kilns) are used for roasting active lime and light burned dolomite used in steel plants and ferroalloy plants.

[0003] There is a prior Chinese utility model patent with the reference publication number: CN215675208U, which discloses a rotary kiln for burning hazardous waste. The utility model includes a rotary kiln and a stratifying device, and the stratifying device is arranged inside the rotary kiln; the stratifying device includes an arc plate, pulleys and a stratifying plate. The arc plate has the same axis as the rotary kiln, the arc plate opens downward, the number of pulleys is two, the two pulleys are respectively arranged on both sides of the axis of the arc plate, and both pulleys are rotatably connected to the arc plate. The outer peripheral surface of the pulley abuts against the inner wall of the rotary kiln; the stratifying plate is arranged on one side of the axis of the arc plate, the stratifying plate is fixedly connected to the arc plate, and the end of the stratifying plate away from the arc plate faces the inner bottom of the rotary kiln, and there is a gap between the stratifying plate and the inner bottom of the rotary kiln. The utility model stratifies the combustibles by arranging a static stratifying device inside the rotary kiln, and by increasing the contact area between the combustibles and the outside world, the combustibles are fully burned, effectively solving the problem of incomplete combustion of the combustibles when the amount of combustibles in the rotary kiln increases.

[0004] The materials entering the hazardous waste rotary kiln are mainly organic wastes such as industrial residues and chemical wastes. During the incineration process, the temperature of the rotary kiln reaches 800 - 1300 °C in a high-temperature environment. As a result, the temperature around the rotary kiln is affected, making it impossible for workers to directly observe the operating state of the rotary kiln, reducing the efficiency of the rotary kiln. At the same time, the hazardous waste slag is discharged from the rotary kiln, carrying temperature, which is not convenient for timely transporting and using the slag, causing blockage at the tail of the rotary kiln and reducing the working efficiency of hazardous waste combustion. Content of the Utility Model

[0005] (I) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the utility model provides a rotary kiln for burning hazardous waste, which has the advantages of being convenient for cooling the outer wall of the rotary kiln, improving the slag discharge efficiency, and improving the working efficiency of hazardous waste combustion, and solves the above technical problems.

[0007] (II) Technical Solution

[0008] To achieve the above object, the utility model provides the following technical solution: The rotary kiln for burning hazardous waste includes a rotary kiln main body for burning and treating hazardous waste. An installation cover for fitting and installing a refrigerating surface is connected to the outside of the rotary kiln main body. Heat dissipation holes are installed above the outer surface of the installation cover. A semiconductor is connected to the inner wall of the installation cover. A copper current guide piece is movably connected to the inner wall of the semiconductor. A refrigerating surface for cooling the rotary kiln main body is connected to the inner wall of the copper current guide piece. An installation sleeve for increasing installation is connected and installed on the outer surface of the installation cover. The inner wall of the refrigerating surface is connected to the rotary kiln main body.

[0009] As a preferred technical solution of the utility model, one end of the rotary kiln main body is connected with a feeding port, the other end of the rotary kiln main body is connected with a flue gas discharge port, and the lower part of the flue gas discharge port is communicated with a discharge port; the flue gas discharge port is used for discharging the flue gas generated by burning hazardous waste, and the flue gas discharge port is used for connecting with flue gas treatment equipment.

[0010] As a preferred technical solution of the utility model, a connecting block is connected to one side of the outer surface of the installation cover, and a wire plug housing is connected to one side of the connecting block; the connecting block is fitted and installed on the outside of the installation cover for cooperation.

[0011] As a preferred technical solution of the utility model, a positive wire is connected to one side of the wire plug housing, a negative wire is installed in parallel on one side of the positive wire, and one end of the negative wire is connected to the semiconductor; the positive wire and the negative wire are connected and matched with a power supply for use.

[0012] As a preferred technical solution of the utility model, an opening is installed on one side of the installation sleeve, installation blocks are connected to both ends of the installation sleeve, and installation bolts are connected above the installation blocks; the installation bolts are used to connect between the two installation blocks.

[0013] As a preferred technical solution of the utility model, a connecting block is installed inside the opening, a wire plug housing is installed inside the opening, and the installation sleeve and the installation blocks are made of bendable steel wire material; the opening is used for installing and matching with the connecting block and the wire plug housing, which is convenient for the negative wire and the positive wire to be connected and matched with the external connection.

[0014] As a preferred technical solution of the utility model, the semiconductor is connected to the inside of the installation cover, and the installation cover is made of electrically insulating ceramic material; the installation cover is installed and connected through the installation sleeve to ensure stability.

[0015] Compared with the prior art, the utility model provides a rotary kiln for burning hazardous waste, which has the following beneficial effects:

[0016] 1. The utility model connects the installation cover to the outer side of the main cylinder of the rotary kiln. The inner wall of the installation cover is fitted with a refrigerating surface structure. The installation cover with the refrigerating surface is installed on the outer surface of the rotary kiln main body for use, which is convenient for cooling the rotary kiln, and it is convenient for the staff to more intuitively observe the working operation state of the rotary kiln, and improves the working efficiency of the rotary kiln.

[0017] 2. The refrigerating surface of the utility model is attached and connected to the outer surface of the rotary kiln main body. When the rotary kiln discharges the burned slag of hazardous waste, it can prevent the surface of the rotary kiln from scalding the staff. At the same time, it is convenient to cool the slag to a certain extent, and it is convenient to transfer the slag in time, effectively avoiding the blockage of the kiln tail of the rotary kiln, further improving the working efficiency of hazardous waste combustion, and facilitating the working use of the rotary kiln for hazardous waste combustion. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the overall schematic diagram of the utility model;

[0019] Figure 2 is the schematic diagram of the rotary kiln main body of the utility model;

[0020] Figure 3 is the schematic diagram of the refrigerating surface of the utility model;

[0021] Figure 4 is the schematic diagram of the installation sleeve of the utility model.

[0022] Wherein: 1. Rotary kiln main body; 11. Feed inlet; 12. Flue gas discharge port; 13. Discharge port; 2. Installation cover; 21. Heat dissipation holes; 22. Connecting blocks; 23. Plug-in housing; 24. Positive wire; 25. Negative wire; 26. Semiconductor; 27. Copper current collector; 28. Refrigerating surface; 3. Installation sleeve; 31. Opening; 32. Installation block; 33. Installation bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following further describes in detail the embodiments of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0024] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] Combined with the attached Figures 1-4 , in this embodiment, the rotary kiln for burning hazardous waste includes a rotary kiln main body 1. An installation cover 2 is connected to the outside of the rotary kiln main body 1. A heat dissipation hole 21 is installed above the outer surface of the installation cover 2. A semiconductor 26 is connected to the inner wall of the installation cover 2. A copper guide sheet 27 is movably connected to the inner wall of the semiconductor 26. A refrigerating surface 28 is connected to the inner wall of the copper guide sheet 27. An installation sleeve 3 is connected and installed on the outer surface of the installation cover 2. The refrigerating surface 28 is connected to the inner wall of the rotary kiln main body 1.

[0027] Specifically, by arranging the installation cover 2 on the outside of the rotary kiln main body 1, and installing the heat dissipation holes 21 above the outer surface of the installation cover 2, the heat dissipation holes 21 are convenient for using the heat dissipation function of the semiconductor 26 refrigerating sheet. The inner wall of the installation cover 2 is connected to the semiconductor 26, the inner wall of the semiconductor 26 is connected to the copper guide sheet 27, the copper guide sheet 27 is connected to the refrigerating surface 28, and the refrigerating surface 28 is connected to the outer surface of the rotary kiln main body 1, which is convenient for using the function of cooling the rotary kiln and facilitating the work of burning hazardous waste. At the same time, the semiconductor 26 is used in a P-type and N-type semiconductor structure, which is convenient for the semiconductor 26 refrigerating sheet to be installed on the outside of the rotary kiln structure, facilitating the improvement of the use function of the rotary kiln for burning hazardous waste and improving the work efficiency of burning and treating hazardous waste.

[0028] One end of the rotary kiln main body 1 is connected to a feed inlet 11, and the other end of the rotary kiln main body 1 is connected to a flue gas discharge port 12. The lower part of the flue gas discharge port 12 is connected and communicated with a discharge port 13.

[0029] A connecting block 22 is connected to one side of the outer surface of the installation cover 2, and a wire plug housing 23 is connected to one side of the connecting block 22.

[0030] One side of the wire plug housing 23 is connected to a positive wire 24. A negative wire 25 is installed in parallel on one side of the positive wire 24. One end of the negative wire 25 is connected to a semiconductor 26.

[0031] Specifically, one end of the rotary kiln main body 1 is connected to a feed inlet 11. The feed inlet 11 facilitates adding hazardous waste into the rotary kiln for combustion treatment. The other end of the rotary kiln main body 1 is connected to a flue gas discharge port 12. The flue gas discharge port 12 is connected to a flue gas treatment device, so as to treat the flue gas during the combustion of hazardous waste, making the rotary kiln environmentally friendly. Below the flue gas discharge port 12 is communicated with a discharge port 13, so that the slag formed after the combustion of hazardous waste is discharged from the discharge port 13 for use, facilitating the coordinated use of the rotary kiln structure and facilitating the combustion treatment of hazardous waste.

[0032] One side of the mounting sleeve 3 is provided with an opening 31. Both ends of the mounting sleeve 3 are connected to mounting blocks 32. Above the mounting blocks 32 are connected with mounting bolts 33.

[0033] Inside the opening 31, a connecting block 22 is installed. Inside the opening 31, a wire plug housing 23 is installed. The mounting sleeve 3 and the mounting blocks 32 are made of bendable steel wire material.

[0034] The semiconductor 26 is connected inside the mounting cover 2. The mounting cover 2 is made of electrically insulating ceramic material.

[0035] Specifically, since the mounting sleeve 3 and the mounting blocks 32 are made of bendable steel wire material, it is convenient to adjust the mounting sleeve 3 and the mounting blocks 32. The mounting blocks 32 are connected to both ends of the mounting sleeve 3, so that the mounting sleeve 3 is fixedly connected by the mounting bolts 33 and fixed on the outer surface of the mounting cover 2 for use, increasing the use of the mounting sleeve 3 outside the rotary kiln main body 1. At the same time, the mounting sleeve 3 is provided with an opening 31 structure. The opening 31 is used in cooperation with the mounting blocks 32 and the wire plug housing 23 for installation, so as to connect and match the semiconductor 26 refrigeration sheet structure with a power supply device through the mounting sleeve 3 for use, facilitating the coordinated use effect of the rotary kiln structure for hazardous waste combustion.

[0036] Working principle: First, the outside of the rotary kiln main body 1 is connected to the installation cover 2, the outside of the installation cover 2 is connected to the installation sleeve 3, the installation sleeve 3 carries the installation block 32, and the installation bolts 33 are used to pass through the installation block 32 to fixedly connect between the installation blocks 32, so that the installation sleeve 3 is fixed on the outer surface of the installation cover 2, and the installation cover 2 is fixed on the outer surface of the rotary kiln main body 1. According to the clamping installation of the installation sleeve 3 on the installation cover 2, the loosening adjustment of the installation sleeve 3 can be used to adjust the installation position of the installation cover 2. The outside of the installation sleeve 3 is connected to the installation block 32, and the installation block 32 is used with the wire plugging shell 23. The wire plugging shell 23 is respectively matched with the negative wire 25 and the positive wire 24. One end of the negative wire 25 and the positive wire 24 is connected and matched with the power supply, and the other end is connected to the semiconductor 26. The semiconductor 26 is divided into an N-type semiconductor 26 material and a P-type semiconductor 26 material. When the N-type semiconductor 26 material and a P-type semiconductor 26 material are connected into a thermocouple pair, after a direct current is connected in this circuit, energy transfer can occur. The joint where the current flows from the N-type element to the P-type element absorbs heat, making it a cold-end working use. Through the refrigerating surface 28 connected to the outer surface of the rotary kiln main body 1, the rotary kiln main body 1 can be cooled, which conveniently increases the working use of the rotary kiln for burning hazardous waste and improves the working efficiency of burning hazardous waste.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotary kiln for burning hazardous waste, comprising a rotary kiln body (1), characterized in that: The outer side of the rotary kiln body (1) is connected to a mounting cover (2), a heat dissipation hole (21) is installed above the outer surface of the mounting cover (2), the inner wall of the mounting cover (2) is connected to a semiconductor (26), the inner wall of the semiconductor (26) is movably connected to a copper guide plate (27), the inner wall of the copper guide plate (27) is connected to a refrigeration surface (28), the outer surface of the mounting cover (2) is connected to a mounting sleeve (3), and the inner wall of the refrigeration surface (28) is connected to the rotary kiln body (1).

2. A rotary kiln for burning hazardous waste according to claim 1, characterized in that: One end of the rotary kiln body (1) is connected to a material inlet (11), and the other end of the rotary kiln body (1) is connected to a smoke exhaust port (12), and the lower part of the smoke exhaust port (12) is connected to a material outlet (13).

3. A rotary kiln for burning hazardous waste according to claim 1, characterized in that: One side of the outer surface of the installation cover (2) is connected to a connection block (22), and one side of the connection block (22) is connected to a plug-in housing (23).

4. A rotary kiln for burning hazardous waste according to claim 3, characterized in that: A positive electrode line (24) is connected to one side of the plug housing (23), a negative electrode line (25) is installed in parallel to one side of the positive electrode line (24), and one end of the negative electrode line (25) is connected to a semiconductor (26).

5. A rotary kiln for burning hazardous waste according to claim 1, characterized in that: An opening (31) is installed on one side of the installation sleeve (3), installation blocks (32) are connected to both ends of the installation sleeve (3), and installation bolts (33) are connected above the installation blocks (32).

6. A rotary kiln for burning hazardous waste according to claim 5, characterized in that: A connection block (22) is installed on the inner side of the opening (31), a wire housing (23) is installed on the inner side of the opening (31), and the installation sleeve (3) and the installation block (32) are made of a bendable steel wire material.

7. A rotary kiln for burning hazardous waste according to claim 1, characterized in that: The semiconductor (26) is connected to the inner side of the mounting cover (2), and the mounting cover (2) is made of an electrically insulating ceramic material.

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