Hazardous waste incineration device

Abstract

The utility model belongs to the technical field of hazardous waste incineration treatment application, and particularly discloses a hazardous waste incineration device which is composed of a main driving shaft, a transmission part, a bearing, an end cover, a bearing seat, an upper shell, a lower shell, an air inlet and a rotor body. The device has the beneficial effects that various hazardous wastes can be treated at the same time, the device is suitable for blocky, granular, lump or pasty, flame-retardant or inflammable hazardous wastes, the accepting range is wide, the adaptability is very strong, the hazardous wastes with the moisture of 30-50% and the granularity of less than or equal to 200mm can be incinerated, and meanwhile, the hazardous wastes do not need to be sorted in the pretreatment process; in the incineration process of the hazardous wastes, the hazardous wastes can be sufficiently combusted by adjusting the rotating speed of the grate plate, the heat energy utilization rate is increased, smoke generated after combustion is discharged through a material and waste gas outlet for purification treatment, and secondary pollution is avoided; the hazardous waste incineration system is simple and reasonable in structure, stable and reliable in operation, capable of reducing operation cost, safe and environmentally friendly.

Description

Technical Field

[0001] This utility model belongs to the field of hazardous waste incineration treatment application technology, and specifically relates to a hazardous waste incineration device. Background Technology

[0002] With the rapid development of global industrialization and urban economies, the amount of hazardous waste generated in my country each year has also increased dramatically. Hazardous waste is typically corrosive, toxic, and flammable, posing serious threats to human health, soil, and water. Improper hazardous waste treatment methods not only yield poor results but also easily cause severe secondary pollution. Therefore, hazardous waste treatment technology is a pressing issue that needs to be addressed.

[0003] Hazardous waste treatment refers to the process of using one or more physical and chemical methods to decompose substances in hazardous waste that are harmful to humans or the environment into harmless components, or to transform them into less toxic chemical forms. The basic principles of hazardous waste pollution prevention and control technology policies are the reduction, resource recovery, and harmlessness of hazardous waste.

[0004] Currently, common methods for hazardous waste treatment include incineration, physicochemical treatment, and landfill. Incineration is one of the most effective ways to treat hazardous waste, and it is the fastest way to reduce waste volume. It can also achieve harmlessness and energy recovery, and it has been widely used in the field of hazardous waste treatment.

[0005] Hazardous waste disposal often employs rotary kiln pyrolysis and two-stage combustion chamber incineration. However, rotary kilns suffer from drawbacks such as large footprint, high investment costs, incomplete combustion, low thermal efficiency, cumbersome operation, and high operating costs. Utilizing cement kilns for co-processing hazardous waste is a novel approach based on existing hazardous waste treatment methods. Currently, most co-processing systems employ SMP (Surface Mount Hydration) systems, which are unsuitable for wastes of various shapes, properties, and moisture content; they tend to clump together during feeding, failing to effectively disperse within the decomposition furnace; and they generate localized high temperatures, causing crusting and blockage, severely impacting the kiln's combustion regime and directly affecting product quality.

[0006] Therefore, the hazardous waste treatment industry urgently needs to improve and innovate its incineration equipment for hazardous waste.

[0007] In view of the above problems, this utility model provides a hazardous waste incineration device. Utility Model Content

[0008] Purpose of the utility model: The purpose of this utility model is to provide a hazardous waste incineration device that enables complete combustion of hazardous waste within the incineration device, improves thermal energy utilization, and allows for the simultaneous treatment of multiple hazardous wastes using the incineration device. The treatment method is simple, reliable, safe, environmentally friendly, and low-cost.

[0009] Technical Solution: This utility model provides a hazardous waste incineration device, comprising a main drive shaft, a transmission unit, bearings, end covers, bearing seats, an upper housing, a lower housing, an air inlet, and a rotor. The main drive shaft is positioned on the symmetrical center line of the cavity formed by the upper and lower housings. The transmission unit is mounted on the main drive shaft and drives it to rotate. The bearing seats are respectively positioned on the center lines of the upper and lower housings. The bearings and end covers are respectively positioned within the bearing seats. Both ends of the main drive shaft are connected to the bearings. The rotor is mounted on the main drive shaft and located within the cavity formed by the upper and lower housings. The main drive shaft drives the rotor to rotate. The air inlet is located at the bottom of the lower housing.

[0010] In this technical solution, the upper shell includes a feed inlet, a fuel inlet, and a material and exhaust gas outlet. The top of the upper shell is provided with a feed inlet and a fuel inlet, both of which are located on the same side of the main drive shaft. Different types of hazardous waste can fall into the incineration device simultaneously through the feed inlet, and combustible materials enter the incineration device through the fuel inlet to provide a heat source for the incineration of hazardous waste. The side of the upper shell is provided with a material and exhaust gas outlet. The incinerated hazardous waste is discharged from the material and exhaust gas outlet for cooling treatment, and the flue gas after combustion is discharged from the material and exhaust gas outlet for purification treatment.

[0011] In this technical solution, the rotor body includes a discharge baffle and a grate; the discharge baffle is fixed to the upper shell, and the grate is installed on the rotor body and rotates synchronously with the rotor body; the bottom of the grate and the lower shell form a hot air chamber, and high-temperature air is blown into the incineration device through the hot air chamber to exchange heat with the hazardous waste falling on the grate. The hazardous waste is continuously and fully burned by the high-temperature air during the rotation of the grate.

[0012] According to this technical solution, the hazardous waste incineration device further includes an upper sealing part disposed between the bearing seat and the upper housing, and a lower sealing part disposed between the grate and the lower housing; wherein the upper sealing part and the lower sealing part are made of, but are not limited to, nitrile rubber.

[0013] Compared with the prior art, the beneficial effects of the hazardous waste incineration device of this utility model are as follows:

[0014] 1. This utility model can simultaneously process multiple types of hazardous waste, and is applicable to block, granular, lumpy or paste-like hazardous waste; both flame-retardant and flammable hazardous waste. It has a wide range of acceptance and is highly adaptable. It can incinerate hazardous waste with a moisture content of 30% to 50% and a particle size of ≤200mm. At the same time, the pretreatment process does not require sorting of hazardous waste.

[0015] 2. During the incineration of hazardous waste, the device of this utility model can adjust the rotation speed of the grate to ensure complete combustion of hazardous waste, thereby improving the thermal energy utilization rate. The bottom of the grate and the lower body of the hazardous waste incineration device form a hot air chamber. High-temperature air is blown into the incineration device through the hot air chamber as combustion air, and exchanges heat with the hazardous waste falling on the grate, which is beneficial to the drying and combustion of hazardous waste. The flue gas after combustion is discharged through the material and exhaust gas outlet for purification treatment to avoid secondary pollution.

[0016] 3. This utility model improves the treatment capacity of hazardous waste, has a simple and reasonable structure, ensures stable and reliable operation of the hazardous waste incineration system, reduces operating costs, and is safe and environmentally friendly. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the main structure of a hazardous waste incineration device according to this utility model;

[0019] Figure 2 This is a top view of the upper shell structure of this utility model;

[0020] Figure 3 This is a top view of the lower shell structure of this utility model;

[0021] Figure 4 This is a partially enlarged structural diagram of the upper shell, lower shell, and flange of this utility model;

[0022] The following numbers are used in the diagram: 1-Main drive shaft, 2-Transmission unit, 3-Bearing, 4-End cover, 5-Bearing housing, 6-Upper housing, 7-Lower housing, 8-Rotor body, 90-Upper sealing part, 91-Lower sealing part, 61-Feed inlet, 62-Fuel inlet, 63-Material and exhaust gas outlet, 71-Air inlet, 81-Discharge baffle, 82-Grate plate, 100-Flange. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be noted that the terms "top," "bottom," "one side," "the other side," "front," "back," "middle part," "inner," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0026] Example

[0027] like Figure 1 , Figure 2 and Figure 3 The hazardous waste incineration device shown includes a main drive shaft 1, a transmission part 2 (sprocket / pulley), a bearing 3, an end cover 4, a bearing seat 5, an upper housing 6, a lower housing 7, and a rotor body 8.

[0028] The transmission device 2 is located at the bottom of the incineration device and is connected to the main drive shaft 1, which drives the main drive shaft 1 to rotate.

[0029] The two ends of the main drive shaft 1 are connected to bearings 3 respectively;

[0030] Bearing 3 and end cap 4 are respectively installed inside bearing housing 5;

[0031] Bearing housings 5 ​​are respectively installed on the center lines of the upper housing 6 and the lower housing 7;

[0032] The rotor body 8 is mounted on the main drive shaft 1 and is located in the cavity formed by the upper housing 6 and the lower housing 7;

[0033] The main drive shaft 1 drives the rotor body 8 to rotate.

[0034] In addition, the upper housing 6 preferably includes a feed inlet 61, a fuel inlet 62, and a material and exhaust gas outlet 63.

[0035] The top of the upper shell 6 is provided with a feed inlet 61 and a fuel inlet 62. Both the feed inlet 61 and the fuel inlet 62 are located on the same side of the main drive shaft 1. Different types of hazardous waste can fall into the incineration device through the feed inlet 61 at the same time, and combustible materials enter the incineration device through the fuel inlet 62 to provide a heat source for the incineration of hazardous waste.

[0036] The upper shell 6 is provided with a material and exhaust gas outlet 63 on its side. The hazardous waste after incineration is discharged from the material and exhaust gas outlet 63 for cooling treatment, and the flue gas after combustion is discharged from the material and exhaust gas outlet 63 for purification treatment.

[0037] In addition, the lower housing 7 preferably includes an air inlet 71, which is located at the bottom of the lower housing. High-temperature air is blown into the incineration device through the air inlet 71 as combustion air, and exchanges heat with the hazardous waste falling on the grate plate 82.

[0038] In addition, the rotor body 8 preferably includes a discharge baffle 81 and a grate 82 (disc).

[0039] The discharge baffle 81 is fixed to the upper shell 6 and located next to the material and exhaust gas outlet 63. The grate 82 is installed on the rotor body 8 and rotates synchronously with the rotor body 8. The bottom of the grate 82 and the lower shell 7 form a hot air chamber. High-temperature air is blown into the incineration device through the hot air chamber and exchanges heat with the hazardous waste falling on the grate 82. The hazardous waste is continuously and fully burned by the high-temperature air during the rotation on the grate 82. The incinerated hazardous waste is pushed to the material and exhaust gas outlet 63 by the discharge baffle 81 and discharged from the material and exhaust gas outlet 63 for cooling treatment.

[0040] In addition, preferably, an upper sealing part 90 is provided between the bearing housing 5 and the upper housing 6 to ensure that the exhaust gas generated by incinerating hazardous waste can only be discharged through the material and exhaust gas outlet 63; a lower sealing part 91 is provided between the grate plate 82 and the lower housing 7 to ensure that hazardous waste will not leak into the lower hot air chamber, and at the same time, hot air will not enter the upper housing 6 without passing through the hazardous waste on the grate plate 82.

[0041] The upper sealing part 90 and the lower sealing part 91 can prevent safety hazards and secondary pollution.

[0042] In addition, such as Figure 4 The upper housing 6 and lower housing 7 shown are connected as one unit by flange 100, which facilitates the installation and maintenance of the equipment.

[0043] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A hazardous waste incineration device, characterized in that: It consists of a main drive shaft (1), a transmission unit (2), a bearing (3), an end cover (4), a bearing housing (5), an upper housing (6), a lower housing (7), an air inlet (71), and a rotor body (8); The main drive shaft (1) is located on the center line of symmetry of the cavity formed by the upper housing (6) and the lower housing (7). The transmission unit (2) is mounted on the main drive shaft (1) and drives the main drive shaft (1) to rotate. The bearing seats (5) are respectively arranged on the center lines of the upper housing (6) and the lower housing (7). The bearing (3) and end cap (4) are respectively installed inside the bearing housing (5). The two ends of the main drive shaft (1) are respectively connected to bearings (3). The rotor body (8) is mounted on the main drive shaft (1) and located within the cavity formed by the upper housing (6) and the lower housing (7). The main drive shaft (1) drives the rotor body (8) to rotate. The air inlet (71) is located at the bottom of the lower housing (7).

2. The hazardous waste incineration device according to claim 1, characterized in that: The upper shell (6) includes a feed inlet (61), a fuel inlet (62), and a material and exhaust gas outlet (63). The top of the upper shell (6) is provided with a feed inlet (61) and a fuel inlet (62), and the feed inlet (61) and the fuel inlet (62) are both located on the same side of the main drive shaft (1). Different types of hazardous waste can fall into the incineration device through the feed inlet (61) at the same time. Combustible materials enter the incineration device through the fuel inlet (62) to provide a heat source for the incineration of hazardous waste. The side of the upper shell (6) is provided with a material and exhaust gas outlet (63). The hazardous waste after incineration is discharged from the material and exhaust gas outlet (63) for cooling treatment, and the flue gas after combustion is discharged through the material and exhaust gas outlet (63) for purification treatment.

3. The hazardous waste incineration device according to claim 1, characterized in that: The rotor body (8) includes a discharge baffle (81) and a grate (82); The discharge baffle (81) is fixed to the upper shell (6), and the grate (82) is installed on the rotor body (8) and rotates synchronously with the rotor body (8); The bottom of the grate (82) and the lower shell (7) form a hot air chamber. High-temperature air is blown into the incineration device through the hot air chamber and exchanges heat with the hazardous waste falling on the grate (82). The hazardous waste is continuously and fully burned by the high-temperature air as it rotates on the grate (82).

4. A hazardous waste incineration device according to claim 3, characterized in that: The hazardous waste incineration device further includes an upper sealing part (90) provided between the bearing seat (5) and the upper shell (6), and a lower sealing part (91) provided between the grate plate (82) and the lower shell (7); The upper sealing part (90) and the lower sealing part (91) are made of, but are not limited to, nitrile rubber.

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