Incinerator for hazardous waste treatment and incineration method

Abstract

The invention relates to the technical field of incinerators, and provides an incinerator for hazardous waste treatment and an incineration method.The incinerator comprises a base table, a furnace body is arranged on the base table, and a feeding port is formed in one side of the furnace body; the first rotary cylinder is rotationally arranged on the base table and communicates with the feeding opening; a connecting chamber is further arranged on the base table and located at the feeding end of the first rotary cylinder, and a first liquid groove is formed in the inner bottom of the connecting chamber. The second rotary cylinder is rotationally arranged and provided with a filtering part extending into the connecting chamber, and a plurality of filtering holes are formed in the peripheral wall of the filtering part and used for discharging liquid hazardous waste into the first liquid tank; the first rotary cylinder is used for receiving the solid hazardous waste in the second rotary cylinder and supplying the solid hazardous waste into the furnace body. The liquid hazardous waste passes through the filter holes to the first liquid tank below under the action of gravity and the rotating centrifugal force of the barrel; the solid hazardous waste is intercepted in the cylinder and moves towards the first rotary cylinder along with rotation of the cylinder body, solid-liquid separation and solid pretreatment are achieved, and the incineration efficiency and the environmental protection property are improved.

Description

Technical Field

[0001] Embodiments of the present invention relate to the technical field of incinerators, and more specifically, to an incinerator and an incineration method for treating hazardous waste. Background Art

[0002] In the incineration treatment of hazardous waste, there are significant differences between liquid hazardous waste and solid hazardous waste in terms of physical state, chemical properties, combustion characteristics, etc. Liquid hazardous waste usually has a low flash point and ignition point, is easy to volatilize and atomize, and has a fast combustion rate; while solid hazardous waste has a complex composition and may contain a large amount of substances that are difficult to burn, such as inert minerals, heavy metal compounds with high melting points, etc. The combustion process is relatively slow, and higher temperatures and longer residence times are required to achieve complete combustion.

[0003] In traditional hazardous waste incineration methods, mixtures of liquid hazardous waste and solid hazardous waste are often simultaneously fed into the incinerator for incineration, resulting in low preheating efficiency of the furnace chamber, a long time required to raise the furnace chamber temperature to the target incineration temperature, and thus problems such as slow preheating of solid materials due to low calorific value and high moisture content. This can lead to the catalytic synthesis reaction of dioxins by metal elements (such as Cu, Fe), and an increase in the reaction of sulfates and nitrates in solids with chlorine elements in liquids to generate acidic gases such as SO2, NOx, and HCl. Summary of the Invention

[0004] To overcome the above defects, the present invention provides an incinerator and an incineration method for treating hazardous waste, which solve the technical problems of low preheating efficiency of the furnace chamber and a long time required to raise the furnace chamber temperature to the target incineration temperature in the related art, resulting in slow preheating of solid materials due to low calorific value and high moisture content.

[0005] According to one aspect, at least one embodiment of the present invention provides an incinerator for treating hazardous waste, comprising: a base, on which a connection chamber is provided, and the connection chamber is provided with a first liquid tank; A second rotary drum, rotatably arranged on the base, having a filtering part, the filtering part is located in the connection chamber and above the first liquid tank, and a plurality of filter holes are provided on the side wall of the filtering part. After the second rotary drum rotates, liquid hazardous waste enters the first liquid tank below through the filter holes; A first rotary drum, rotatably arranged on the base and communicating with the second rotary drum, the rotation axis of the first rotary drum is parallel to the rotation axis of the second rotary drum, and the second rotary drum and the first rotary drum are arranged in sequence along the rotation axis direction, so that solid hazardous waste can pass through the second rotary drum and the first rotary drum in sequence.

[0006] For example, in an incinerator for hazardous waste treatment provided by at least one embodiment of the present invention, the filtering part is configured in a conical cylinder shape, and the diameter of the end close to the first rotating cylinder is larger than that of the end far from the first rotating cylinder, so that the solid hazardous waste can move obliquely along the inner wall of the filtering part into the first rotating cylinder.

[0007] For example, in an incinerator for hazardous waste treatment provided by at least one embodiment of the present invention, the second rotating cylinder further has a connecting disk, the connecting disk is rotatably arranged on the base, and the filtering part is eccentrically arranged relative to the connecting disk.

[0008] For example, in an incinerator for hazardous waste treatment provided by at least one embodiment of the present invention, it further includes: A winnowing device, the winnowing device is arranged on the base and located between the second rotating cylinder and the first rotating cylinder, the winnowing device includes a winnowing cylinder and an air duct, the winnowing cylinder is annular and is respectively rotatably connected to the second rotating cylinder and the first rotating cylinder; There is at least one of the air ducts, which faces between the second rotating cylinder and the first rotating cylinder, is used for adsorbing light impurities in the solid hazardous waste, and is communicated with the furnace body, and the distance from the communication part to the bottom of the furnace body is less than the distance from the first rotating cylinder to the bottom of the furnace body.

[0009] For example, in an incinerator for hazardous waste treatment provided by at least one embodiment of the present invention, the diameter of the end of the filtering part close to the first rotating cylinder is smaller than the diameter of the first rotating cylinder, so that there is a height difference between the filtering part and the first rotating cylinder, so that after the solid hazardous waste passes through the filtering part, it can fall in the air.

[0010] For example, in an incinerator for hazardous waste treatment provided by at least one embodiment of the present invention, it further includes: A furnace body, the furnace body is located on one side of the first rotating cylinder and is communicated with the first rotating cylinder, the furnace body is provided with a communication port, the communication port is located below the first rotating cylinder, and the distance from the communication port to the bottom of the furnace body is less than the distance from the first rotating cylinder to the bottom of the furnace body; The base further has a second liquid tank, the second liquid tank is respectively communicated with the first liquid tank and the communication port, so that the liquid hazardous waste can sequentially pass through the first liquid tank, the second liquid tank and the communication port and flow into the furnace body.

[0011] For example, in an incinerator for hazardous waste treatment provided by at least one embodiment of the present invention, a diversion protrusion is arranged in the second liquid tank, and the diversion protrusion can divide the liquid hazardous waste in the second liquid tank into two streams; There are two of the connecting ports, which are respectively connected to the two radial sides inside the furnace body, and the two connecting ports are respectively used to dock two streams of liquid hazardous waste.

[0012] For example, in an incinerator for treating hazardous waste provided by at least one embodiment of the present invention, two guiding channels are further provided on the inner wall of the furnace body. One ends of the two guiding channels are respectively docked and communicated with the two connecting ports, and the other ends extend towards the bottom of the furnace body, so that after the liquid hazardous waste flows out of the connecting port, it flows into the furnace body through the guiding channel.

[0013] For example, in an incinerator for treating hazardous waste provided by at least one embodiment of the present invention, the guiding channel has an outlet, and the outlets of the two guiding channels are arranged oppositely and both face the middle of the furnace body.

[0014] According to one aspect, at least one embodiment of the present invention provides an incineration method for treating hazardous waste, which uses the incinerator for treating hazardous waste described above to carry out incineration processing of hazardous waste, including: S1. Separating the mixed hazardous waste into solid and liquid; S2. Separating the light impurities and heavy impurities from the solid hazardous waste; S3. Incinerating the light-impurity solid hazardous waste, heavy-impurity solid hazardous waste and liquid hazardous waste.

[0015] The beneficial effects of the embodiments of the present invention are as follows: In the present invention, after the hazardous waste containing liquid and solid enters the second rotary drum, the liquid hazardous waste passes through the filter holes to the first liquid tank below under the action of gravity and the centrifugal force of the rotation of the drum body; the solid hazardous waste is intercepted in the drum and moves towards the first rotary drum as the drum rotates. Preferably, the first rotary drum rotates at the same speed to further convey the solid hazardous waste. Traditional incinerators may directly input the solid-liquid mixed waste into the furnace body, resulting in low combustion efficiency and high pollutant emissions; this solution first realizes solid-liquid separation and solid pretreatment through a double rotary drum, improving incineration efficiency and environmental protection. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the following drawings are only some exemplary embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the content of the exemplary embodiments of the present invention and these drawings.

[0017] Figure 1 It is a schematic structural diagram of an incinerator and an incineration method for treating hazardous waste in an embodiment of the present invention; Figure 2 ForFigure 1 Schematic top view structure diagram of the incinerator in the embodiment of Figure 3 is Figure 2 Schematic cross-sectional structure diagram of A-A in Figure 4 is Figure 1 Schematic structure diagram of the second rotary drum, the first rotary drum, the air separation device and part of the base in the embodiment of Figure 5 is Figure 1 Schematic structure diagram of the second rotary drum and part of the base in the embodiment of Figure 6 is Figure 1 Schematic internal structure diagram of the furnace body in the embodiment of Figure 7 is Figure 1 Schematic cross-sectional structure diagram of the second liquid tank inside the base in the embodiment of Figure 8 is Figure 1 Schematic structure diagram of the guiding channel in the embodiment of

[0018] In the figure: 1. Base; 101. Connection chamber; 102. First liquid tank; 103. Second liquid tank; 104. Shunt projection; 105. Feed inlet; 106. Support cylinder part; 2. First rotary drum; 3. Second rotary drum; 301. Filter part; 302. Filter hole; 303. Connection disk; 4. Air duct; 5. Furnace body; 501. Communication port; 6. Guiding channel; 601. Outlet. Detailed implementation manners

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention.

[0020] For the sake of simplicity of the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, for the sake of simplicity and easy understanding of the drawings, in some figures, parts with the same structure or function are only schematically shown for one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also can mean "more than one" situation, and "several" includes "two" and "more than two".

[0021] In this text, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" 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 a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0022] In the present invention, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0023] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "left", and "right" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, 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 thus should not be construed as a limitation to the present invention.

[0024] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions, and cannot be understood as indicating or implying relative importance.

[0025] As Figures 1 to 8 shown, it shows an incinerator in an embodiment of the present invention. As Figure 5 shown, a connection chamber 101 is provided on a base 1. The connection chamber 101 has an inner cavity, and the inner cavity includes a part for accommodating a second rotary cylinder 3 and a first liquid tank 102. The first liquid tank 102 is located below and is used to receive the liquid hazardous waste flowing down from the second rotary cylinder 3. Specifically, the connection chamber 101 and the base 1 can be a split structure. That is, during the installation of the equipment, first, the second rotary cylinder 3 is rotatably arranged on the support cylinder part 106 of the base 1. As Figure 3As shown, an annular connecting protrusion and an annular groove are respectively machined at one end of the support cylinder part 106 and one end of the second rotating cylinder 3. After the second rotating cylinder 3 is rotatably installed, the connecting chamber 101 is sleeved on the second rotating cylinder 3. The connecting chamber 101 abuts against the other end of the second rotating cylinder 3. The connecting chamber 101 and the support cylinder part 106 together are used to provide the installation and rotation basis for the second rotating cylinder 3. As an option, similar annular grooves and annular connecting protrusions can also be provided at the connection between the connecting chamber 101 and the second rotating cylinder 3 (this is for reference of the installation and design idea and is not shown in the figure).

[0026] The second rotating cylinder 3 rotates around its axis. Filter holes 302 are provided on the side wall of its filtering part 301. In this solution, the filter holes 302 are arranged in a strip shape instead of multiple small holes. The function is that the strip-shaped holes make solid particles more likely to roll or slide when contacting the orifice, rather than being stuck like circular small holes. When the liquid flows in the strip-shaped holes, the boundary layer in the long axis direction develops more fully, forming a laminar flow state, which is beneficial for fine particles to pass through with the liquid flow; while circular holes are prone to generate turbulence, resulting in particle aggregation near the orifice. The rotation of the second rotating cylinder 3 can be achieved by arranging a gear ring on its outer side wall and configuring a gear for rotational transmission. The driving rotation is a conventional technical means and is only shown schematically in the drawings. For details, reference can be made to the actual equipment environment and space.

[0027] When the mixed hazardous waste containing liquid and solid enters the second rotating cylinder 3, the liquid hazardous waste passes through the filter holes 302 to the lower first liquid tank 102 under the action of gravity and the centrifugal force of the cylinder rotation; the solid hazardous waste is retained in the cylinder and moves towards the first rotating cylinder 2 as the second rotating cylinder 3 rotates. As an option, the first rotating cylinder 2 rotates at the same speed to further convey the solid hazardous waste. Traditional incinerators may directly input the solid-liquid mixed waste into the furnace body 5, resulting in low combustion efficiency and high pollutant emissions; this solution first realizes solid-liquid separation and solid pretreatment through a double rotating cylinder, improving the incineration efficiency and environmental protection.

[0028] As Figure 4 and Figure 5 shown, in some examples, the filtering part 301 is configured as a conical cylinder, and the diameter of the end close to the first rotating cylinder 2 is larger, and the diameter of the end far from the first rotating cylinder 2 is smaller. The inner wall has a certain inclination. The solid hazardous waste will move along the inclined inner wall from the end with a smaller diameter to the end with a larger diameter, that is, towards the direction of the first rotating cylinder 2, and finally smoothly enter the first rotating cylinder 2. Compared with other shapes, the conical cylinder structure makes it difficult for the solid hazardous waste to accumulate or get stuck during the movement. Because as the solid hazardous waste moves towards the large-diameter end, the space gradually becomes larger, reducing the possibility of blockage and improving the stability and reliability of the equipment operation.

[0029] As Figure 4 and Figure 5As shown, in some examples, the connecting disc 303 is rotatably arranged on the base 1, providing a rotating support point for the second rotary cylinder 3, enabling the second rotary cylinder 3 to stably rotate around the axis of the connecting disc 303. The filtering part 301 is eccentrically arranged relative to the connecting disc 303. When the second rotary cylinder 3 rotates around the axis of the connecting disc 303, the filtering part 301 will perform an eccentric motion. This eccentric motion causes the hazardous waste in the filtering part 301 to be subjected to uneven centrifugal forces. During the rotation process, the hazardous waste will roll and move continuously within the filtering part 301 under the combined action of various forces such as centrifugal force, gravity, and the frictional force of the inner wall of the filtering part 301, so as to come into contact with the inner wall of the filtering part 301 more fully, which helps the liquid hazardous waste to be better separated through the filter holes 302. At the same time, it can also make the solid hazardous waste more evenly distributed within the filtering part 301, preparing for the subsequent transfer to the first rotary cylinder 2. Preferably, the second rotary cylinder 3 is configured such that there is always an overlapping space in the middle of the second rotary cylinder 3 during the eccentric rotation process to facilitate feeding into the second rotary cylinder 3 through the conveyor belt.

[0030] As Figure 1 , Figure 2 and Figure 3 shown, in some examples, the support cylinder part 106 is annular and is rotatably connected to the second rotary cylinder 3 and the first rotary cylinder 2 respectively as a support base. The air duct 4 is arranged on the support cylinder part 106, and there is at least one. In this solution, two symmetrically arranged air ducts 4 are provided to improve the air separation efficiency. The air ducts 4 face towards the space between the second rotary cylinder 3 and the first rotary cylinder 2. The fan in the air duct 4 operates to generate wind power. Since the light impurities (such as plastic fragments, fibers, etc.) are of light mass, they enter the air duct 4 along with the wind. While the heavy solids (such as metal blocks, ceramic blocks, etc.) will continue to move into the first rotary cylinder 2 due to their large mass. Preferably, the lower part of the support cylinder part 106 can be set as an inclined surface to prevent the hazardous waste from accumulating on the support cylinder part 106. The light impurities sucked up by the wind enter the furnace body 5 through the air duct 4. And since the distance from the connection point to the bottom of the furnace body 5 is less than the distance from the first rotary cylinder 2 to the bottom of the furnace body 5, the light impurities will fall into the furnace body 5 for incineration treatment prior to the heavy solids entering the furnace body 5 from the first rotary cylinder 2. The light impurities fall into the furnace body 5 prior to the heavy solids. Since the light impurities are usually flammable, their prior combustion in the furnace can provide a certain amount of heat for the subsequent combustion of the heavy solids, which helps to improve the combustion efficiency of the heavy solids and makes the entire incineration process more stable and complete. At the same time, the presence of light impurities in the heavy solids is reduced, and the possibility of generating pollutants due to incomplete combustion of the light impurities is lowered.

[0031] As Figure 4As shown, in some examples, the diameter of the filtering portion 301 of the second rotating cylinder 3 near one end of the first rotating cylinder 2 is smaller than the diameter of the first rotating cylinder 2, thus forming a height difference between the filtering portion 301 and the first rotating cylinder 2. When the solid hazardous waste completes solid-liquid separation in the filtering portion 301 of the second rotating cylinder 3, it will leave from the end of the filtering portion 301. Due to the height difference, the solid hazardous waste no longer enters the first rotating cylinder 2 directly and smoothly, but has a certain height, so that it can fall in the air.

[0032] Since the rotation of the second rotating cylinder 3 gives the solid hazardous waste a certain initial velocity, when it falls in the air, it will form a parabolic trajectory. During the falling process, the air duct 4 sucks up and takes away the light solid hazardous waste, while the heavy solid, due to its large mass, will continue to fall along the parabolic trajectory and finally fall into the first rotating cylinder 2.

[0033] As Figure 3 shown, in some examples, the first rotating cylinder 2 is connected to the furnace body 5, and the solid hazardous waste processed by the first rotating cylinder 2 will fall from its outlet 601 into the furnace body 5 for incineration. The connection port 501 is arranged on the furnace body 5 and is located below the first rotating cylinder 2, and the distance from the connection port 501 to the bottom of the furnace body 5 is smaller than the distance from the first rotating cylinder 2 to the bottom of the furnace body 5. Usually, the bottom of the furnace body 5 is an area where the heat is relatively concentrated. When the liquid hazardous waste enters here, it can fully contact the high-temperature area in the lower part of the furnace, better absorb heat, contribute to the rapid heating, evaporation and gasification of the liquid hazardous waste, achieve more complete combustion, improve the heat utilization efficiency, and at the same time contribute to maintaining the uniformity of the temperature distribution in the furnace, providing a stable temperature environment for the effective incineration of the hazardous waste.

[0034] The first liquid tank 102 collects the liquid hazardous waste separated from the filtering portion 301 of the second rotating cylinder 3 and further flows into the second liquid tank 103. The second liquid tank 103 is respectively connected to the first liquid tank 102 and the connection port 501 of the furnace body 5. After the liquid hazardous waste is temporarily stored in the second liquid tank 103, it then flows into the interior of the furnace body 5 under the action of gravity or pumping through the connection with the connection port 501.

[0035] As Figure 4 and Figure 7As shown, in some examples, the diversion protrusion 104 in the second liquid tank 103 divides the collected liquid hazardous waste into two streams. The two communication ports 501 on the furnace body 5 are respectively located on the radial two sides inside the furnace body 5 and are respectively docked with the two streams of liquid hazardous waste after diversion. In this way, the diverted liquid hazardous waste will flow into different positions inside the furnace body 5 through the corresponding communication ports 501, realizing the decentralized feeding of liquid hazardous waste inside the furnace body 5. It can make the liquid hazardous waste more evenly distributed inside the furnace body 5, contact more fully with the high-temperature gas and solid hazardous waste inside the furnace, so as to achieve more uniform and sufficient combustion, improve the combustion efficiency, and reduce the situation of local overheating or incomplete combustion. Feeding from both sides helps to optimize the airflow distribution inside the furnace. After the liquid hazardous waste enters the furnace body 5, it will cause a certain disturbance to the airflow inside the furnace. The two streams of liquid entering from different positions can make the airflow distribution more uniform, avoid problems such as airflow deviation or local airflow blockage, and is conducive to maintaining a stable combustion environment inside the furnace and improving the heat transfer efficiency. In addition, the liquid hazardous waste is evenly distributed inside the furnace body 5, avoiding local overheating and corrosion caused by the liquid concentrating in a certain area, thereby reducing the loss of internal components of the furnace body 5, extending the service life of the equipment, and reducing the equipment maintenance cost.

[0036] As Figure 2 , Figure 3 and Figure 6 As shown, in some examples, one end of each of the two guiding channels 6 is respectively docked and communicated with the two communication ports 501 on the furnace body 5, and the other end extends towards the bottom of the furnace body 5. When the liquid hazardous waste flows out from the communication port 501, it will directly enter the corresponding guiding channel 6. During the process of the liquid hazardous waste flowing along the guiding channel 6, the outer wall of the guiding channel 6 contacts the high-temperature environment inside the furnace, and will transfer the heat inside the furnace to the liquid hazardous waste. After the liquid hazardous waste absorbs heat, its temperature gradually rises, and part of the liquid may evaporate or gasify in advance. When the liquid hazardous waste reaches the outlet 601 of the guiding channel 6 and flows into the inside of the furnace body 5, it has been preheated to a certain extent, which is more conducive to mixing with air and burning rapidly inside the furnace.

[0037] The guiding channel 6 can accurately guide the liquid hazardous waste to the designated position inside the furnace body 5, ensuring that the distribution of the liquid hazardous waste inside the furnace is more reasonable. In this way, it can avoid the random spraying or dispersion of the liquid hazardous waste, enable the liquid hazardous waste to burn in the area most conducive to combustion, and improve the combustion efficiency and treatment effect. In this solution, the outlets 601 of the two guiding channels 6 are arranged oppositely, forming opposite liquid flows in the middle of the furnace body 5, which helps to form a stable combustion area in this area. The liquid hazardous waste is fully mixed and burned in the middle, which can better utilize the heat distribution inside the furnace, making the combustion reaction more stable and efficient. At the same time, this design is also conducive to the uniform transfer of heat inside the furnace body 5, avoiding the occurrence of local overheating or overcooling, and improving the thermal efficiency and stability of the entire furnace body 5.

[0038] An incineration method for hazardous waste treatment, specifically including the following steps: S1. Separate the mixed hazardous waste into solid and liquid phases. Specifically: Feed the mixed hazardous waste into the rotatable second rotary drum 3. The filtering part 301 on the inner wall of the drum realizes solid-liquid separation under the action of centrifugal force: the liquid hazardous waste penetrates through the strip-shaped filter holes 202 to the first liquid tank 102 below, and the solid hazardous waste is intercepted because its particle size is larger than the filter holes 202 and moves towards the first rotary drum 2 under the eccentric movement of the rotary drum, realizing preliminary separation of substances.

[0039] S2. The solid hazardous waste moves further for separation of light impurities and heavy impurities. Specifically: During the transfer of the solid hazardous waste to the first rotary drum 2, classification is achieved through the air separation device 4. Using the height difference, the solid materials form a parabolic trajectory, and the light impurities are absorbed through sorting and directly transported into the furnace body 5.

[0040] S3. Incinerate the light-impurity solid hazardous waste, heavy-impurity solid hazardous waste, and liquid hazardous waste. Specifically: After the liquid hazardous waste is shunted by the second liquid tank 103, it is fed into the high-temperature area from both sides in the middle of the furnace body 5 through the guiding channel 6. The light impurities enter from the upper part of the furnace body 5 and burn prior to the heavy materials using their flammable characteristics to provide preheating for subsequent combustion; the heavy solids fall into the furnace body 5 from a higher position, fully contact with the rising hot air flow, and the residence time is extended to ensure complete combustion.

[0041] Through solid-liquid separation of substances, separation of light and heavy, and directional feeding, efficient incineration of hazardous waste and reduction of pollutants are achieved.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. An incinerator for hazardous waste treatment, characterized in that, Comprising: A base (1) is provided with a furnace body (5) thereon, and one side of the furnace body (5) has a feed inlet (105); A first rotary cylinder (2) is rotatably arranged on the base (1) and communicates with the feed inlet (105); A connection chamber (101) is further provided on the base (1), the connection chamber (101) is located at the feed end of the first rotary cylinder (2), and the inner bottom of the connection chamber (101) has a first liquid tank (102); A second rotary cylinder (3) is rotatably arranged on the base (1), the second rotary cylinder (3) has a filtering part (301) extending into the connection chamber (101), a plurality of filter holes (302) are provided on the peripheral wall of the filtering part (301), the filtering part (301) is used for receiving and driving the mixed hazardous waste to rotate to filter the mixed hazardous waste and form liquid hazardous waste and solid hazardous waste, and the filter holes (302) are used for discharging the liquid hazardous waste into the first liquid tank (102); The first rotary cylinder (2) is used for receiving the solid hazardous waste in the second rotary cylinder (3) and feeding the solid hazardous waste into the furnace body (5).

2. The incinerator for hazardous waste treatment according to claim 1, characterized in that, The filtering part (301) is configured as a conical cylinder, the diameter of the end of the filtering part (301) far from the first rotary cylinder (2) gradually becomes smaller, and the filtering part (301) is used for guiding the solid hazardous waste into the first rotary cylinder (2).

3. An incinerator for hazardous waste treatment according to claim 2, characterized in that, A connection disk (303) is sleeved on the outer periphery of one end of the second rotary cylinder (3), the connection disk (303) is rotatably arranged on the base (1), and the main axis of the filtering part (301) is eccentrically arranged with the main axis of the connection disk (303).

4. A waste incinerator for hazardous waste treatment according to claim 1, characterized in that, A communication port (501) extending into the base (1) and located below the first rotary cylinder (2) is provided on the side of the furnace body (5); A second liquid tank (103) for communicating the first liquid tank (102) and the communication port (501) is provided in the base (1), and the second liquid tank (103) is used for guiding the liquid hazardous waste to flow into the furnace body (5) from the first liquid tank (102) through the communication port (501).

5. An incinerator for hazardous waste treatment according to claim 4, characterized in that, The base (1) further has a support cylinder part (106), the support cylinder part (106) is located between the first rotary cylinder (2) and the second rotary cylinder (3), and the first rotary cylinder (2) and the second rotary cylinder (3) are rotatably connected to both ends of the support cylinder part (106). Further comprising: An air duct (4) has at least one provided on the support cylinder part (106), one end of the air duct (4) communicates with the inside of the support cylinder part (106), and the other end communicates with the lower part of the furnace body (5), and is used for adsorbing the light solid hazardous waste sent from the first rotary cylinder (2) to the second rotary cylinder (3) and guiding the light solid hazardous waste into the furnace body (5).

6. The incinerator for hazardous waste treatment according to claim 5, characterized in that, The diameter of the filtering part (301) near one end of the first rotary cylinder (2) is smaller than the diameter of the first rotary cylinder (2), so that the second rotary cylinder (3) can receive the solid hazardous waste discharged from the filtering part (301).

7. The incinerator for hazardous waste treatment according to claim 4, wherein, A flow dividing protrusion (104) is arranged in the second liquid tank (103), and the flow dividing protrusion (104) can divide the liquid hazardous waste in the second liquid tank (103) into two streams; There are two communication ports (501), which are respectively communicated with both sides of the furnace body (5), and the two communication ports (501) are respectively used to receive and divert two streams of liquid hazardous waste into the furnace body (5).

8. An incinerator for hazardous waste treatment according to claim 7, characterized in that, Two guiding channels (6) symmetrically arranged on both sides of the central axis of the furnace body (5) are further arranged on the inner wall of the furnace body (5). One end of the guiding channel (6) is communicated with the communication port (501), and the other end spirally extends towards the inner bottom of the furnace body (5) for guiding the liquid hazardous waste in the communication port (501) to the bottom of the furnace body (5).

9. The incinerator for hazardous waste treatment according to claim 8, characterized in that, The bottom end of the guiding channel (6) has an outlet (601), and the outlets (601) of the two guiding channels (6) are both arranged towards the central axis of the furnace body (5).

10. An incineration method for hazardous waste treatment, characterized in that, Using the incinerator for hazardous waste treatment according to any one of claims 1-9 for incineration processing of hazardous waste, including: S1. Place the mixed hazardous waste into the first rotary cylinder (2), and use the first rotary cylinder (2) to drive the mixed hazardous waste to rotate for solid-liquid separation to obtain liquid hazardous waste and solid hazardous waste. The liquid hazardous waste enters the furnace body (5) through the first liquid tank (102) and the second liquid tank (103); S2. The air duct (4) adsorbs and guides the light impurities in the solid hazardous waste into the furnace body (5); S3. The second rotary cylinder (3) sends the solid hazardous waste remaining after being adsorbed by the air duct (4) into the furnace body (5) for incineration treatment.

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