CN217402569U

CN217402569U - High-temperature slag discharging device of plasma furnace

Info

Publication number: CN217402569U
Application number: CN202221157372.1U
Authority: CN
Inventors: 郭易之; 李国恩
Original assignee: Dalian Yishun Green Technology Co ltd
Current assignee: Dalian Yishun Green Technology Co ltd
Priority date: 2022-05-13
Filing date: 2022-05-13
Publication date: 2022-09-09
Anticipated expiration: 2032-05-13

Abstract

The utility model provides a sediment device is arranged to plasma stove high temperature relates to plasma stove technical field to solve among the prior art plasma stove and pass through manual operation row's sediment, the problem that the drain is inefficient for long consumption time, row, this plasma stove high temperature row's sediment device includes graphite pipe (1), insulating ceramic pipe (2) and induction coil (3), graphite pipe (1) with insulating ceramic pipe (2) are both ends open-ended hollow tubular structure, insulating ceramic pipe (2) overlap in the outside of graphite pipe (1) and with graphite pipe (1) coaxial setting, induction coil (3) wind in the outside of insulating ceramic pipe (2). The utility model discloses a sediment state of arranging of plasma furnace high temperature can be controlled through the on-state that changes induction coil to the sediment device of arranging, and operation process easily controls, and the scene does not need manual work, whole process safety, rapidly and high-efficient.

Description

High-temperature slag discharging device of plasma furnace

Technical Field

The utility model belongs to the technical field of plasma furnace technique and specifically relates to a sediment device is arranged to plasma furnace high temperature.

Background

The principle of plasma treatment of hazardous waste is to treat solid or hazardous waste using a plasma torch with a high temperature of more than 5500 ℃ as a heat source. Plasma technology is a gasification technology that, due to its high temperature and high thermal density, almost completely converts organic matter in carbon-based waste into syngas (mainly CO and H) ₂ ) While inorganic substances can be converted into harmless ash (vitreous body). The solid waste is treated by utilizing the plasma gasification technology, so that the generation of dioxin can be controlled from the source, the volume of the solid waste is reduced by over 90 percent compared with the residue generated by burning, and the burden of land for landfill is greatly reduced; meanwhile, residues generated in the gasification process are melted into a vitreous body through high temperature plasma, so that harmful substances such as heavy metals are sealed in the vitreous body, and the surrounding environment is not polluted. The plasma treatment process realizes the harmlessness, reduction and recycling of the solid waste.

In the process of treating waste in a plasma furnace, since there are inorganic substances that cannot be decomposed in the solid waste, these inorganic substances are generally discharged outside the furnace after being heated to a molten state. In the working process, because the processing scale of the waste is small, the content of inorganic matters which can not be decomposed is also small, the waste is generally discharged out of the furnace body in a batch processing mode, namely, a slag discharge port of the furnace body is firstly plugged by special plugging mud, when the molten matters in the furnace are accumulated to a certain amount, the plugging materials at the slag discharge port of the opening device are manually cleaned, the high-temperature slag in the furnace can be discharged, and the furnace is plugged after the molten matters are discharged, so that the plasma furnace adopts an intermittent slag discharging mode.

However, the intermittent type slag discharge method has the following problems: the method has the advantages that firstly, the plugging of the slag discharging port by the plugging mud is tight, materials or smoke gas are prevented from escaping from the slag discharging port in the operation process, in addition, the plugging and the plugging cleaning work are manually carried out, the operation time is long, the cost of workers and materials is consumed, in addition, the operation is carried out under the high-temperature condition, the operation process is dangerous, the slag discharging efficiency is low, and the treatment efficiency of the plasma furnace is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sediment device is arranged to plasma stove high temperature to solve among the prior art plasma stove and pass through manual operation row's sediment, the problem that the drain is inefficient, that the consumption time is long, arrange the sediment, the utility model discloses a plasma stove high temperature row sediment device does not need manual work when arranging the sediment to the plasma stove, and operation process safety, rapidly and high-efficient.

The utility model provides a pair of sediment device is arranged to plasma furnace high temperature, including the graphite pipe, insulating ceramic pipe and induction coil, the graphite pipe with insulating ceramic pipe is both ends open-ended hollow tubular structure, insulating ceramic pipe overlap in the graphite pipe the outside and with the coaxial setting of graphite pipe, induction coil wind in insulating ceramic pipe's the outside.

As a preferred scheme of the utility model, insulating ceramic pipe paste lean on in the outside of graphite pipe, induction coil is hollow structure and lets in the cooling water in its inside.

As an optimal scheme of the utility model, still include outer ceramic pipe and two ceramic gaskets, outer ceramic pipe overlap in induction coil's the outside and with the coaxial setting of graphite pipe, outer ceramic pipe with be equipped with the clearance between the insulating ceramic pipe and length between them equals, two ceramic gasket overlap respectively in the both ends of graphite pipe are sealed outer ceramic pipe with clearance between the insulating ceramic pipe.

As a preferred scheme of the utility model, the thickness scope of graphite pipe is 10mm-25mm, the internal diameter scope of graphite pipe is 12mm-50 mm.

As a preferred scheme of the utility model, the length of graphite pipe is greater than the length of insulating ceramic pipe, the both ends of graphite pipe extend to the outside of insulating ceramic pipe.

As a preferred scheme of the utility model, the insulating ceramic pipe is beryllium oxide ceramic pipe, and the thickness of insulating ceramic pipe is 4mm-10 mm.

As a preferred scheme of the utility model, outer ceramic pipe is alumina ceramic pipe, the ceramic gasket is alumina ceramic gasket.

As a preferred scheme of the utility model, induction coil for hollow copper pipe wind in on the insulating ceramic pipe.

Compared with the prior art, the utility model discloses there is following positive effect:

1. the utility model provides a sediment device is arranged to plasma stove high temperature through including the graphite pipe, insulating ceramic pipe and induction coil, and graphite pipe and insulating ceramic pipe are both ends open-ended hollow tubular structure, insulating ceramic pipe cover in the outside of graphite pipe and with the coaxial setting of graphite pipe, induction coil around the outside in insulating ceramic pipe. The utility model discloses a sediment device is arranged to plasma furnace high temperature when using, install the row's of installing slag notch department at the plasma furnace, the entrance point of graphite pipe is connected with the inner wall of plasma furnace, the exit end of graphite pipe extends to the plasma furnace outside, when row's sediment is arranged to needs, lead to induction coil has high frequency current, therefore produce alternating magnetic field in induction coil, the graphite pipe at magnetic line of force cutting center, produce induced-current in the graphite pipe, make its rapid heating up, the solid residue sediment melting of high temperature graphite pipe in with the passageway becomes liquid, make it flow out through graphite pipe is automatic, the realization is arranged sediment. After slag discharge is finished and the slag discharge port needs to be plugged, the induction coil stops being electrified, the graphite tube starts cooling, liquid slag in the graphite tube is cooled into a solid state, and the slag discharge channel is sealed to realize plugging of the slag discharge port. The utility model discloses a sediment state of arranging of plasma furnace high temperature can be controlled through the on-state that changes induction coil to the sediment device of arranging, and operation process only needs to pass through the electrical system operation, and the scene does not need manual work, whole process safety, rapidly, high-efficient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of a high-temperature slag discharge device of a plasma furnace according to the present invention;

fig. 2 is a schematic structural diagram of an induction coil in the present invention.

In the figure: 1. a graphite tube; 11. an inlet end; 12. an outlet end; 2. an insulating ceramic tube; 3. an induction coil; 4. an outer ceramic tube; 5. a ceramic shim.

Detailed Description

In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.

The following describes the embodiments of the present invention in further detail with reference to the attached drawings.

Example 1:

the high-temperature slag discharging device of the plasma furnace provided by the embodiment comprises a graphite tube 1, an insulating ceramic tube 2 and an induction coil 3, wherein the graphite tube 1 and the insulating ceramic tube 2 are both hollow tubular structures with openings at two ends, the insulating ceramic tube 2 is sleeved outside the graphite tube 1 and is coaxially arranged with the graphite tube 1, and the induction coil 3 is wound outside the insulating ceramic tube 2, as shown in fig. 1-2. The insulating ceramic tube 2 plays a role in insulating and protecting the graphite tube 1.

When the high-temperature slag discharging device of the plasma furnace is used, the device is arranged at a slag discharging port of the plasma furnace, the inlet end 11 of the graphite tube 1 is connected with the inner wall of the plasma furnace, and the outlet end 12 of the graphite tube extends to the outer side of the plasma furnace and is a discharging port. When the residue in the plasma furnace is accumulated to a certain amount and needs to be discharged, high-frequency current is conducted to the induction coil 3, so that an alternating magnetic field is generated in the induction coil 3, magnetic lines of force cut the graphite tube 1 in the center, induced current is generated in the graphite tube 1, the temperature of the graphite tube is rapidly increased, the high-temperature graphite tube 1 melts the solid residue in the channel into liquid, and the liquid is enabled to automatically flow out through the graphite tube 1, so that the slag discharge is realized. After slag discharging is finished and the slag discharging opening needs to be plugged, the induction coil 3 stops electrifying, the graphite pipe starts cooling, liquid slag in the graphite pipe is cooled to be solid, the slag discharging passage is sealed, and the slag discharging opening is plugged.

The high-temperature slag discharging device of the plasma furnace can control the slag discharging state of the plasma furnace by changing the power-on state of the induction coil 3, the operation process only needs to be carried out through an electric control system, manual operation is not needed on the plasma furnace, and the whole process is safe, rapid and efficient.

Preferably, the insulating ceramic tube 2 is attached to the outside of the graphite tube 1, and the induction coil 3 has a hollow structure and is filled with cooling water. The inner diameter of the insulating ceramic tube 2 is equal to the outer diameter of the graphite tube 1. Preferably, the induction coil 3 is a hollow copper tube wound on the insulating ceramic tube 2.

The plasma furnace high temperature slag discharging device of the embodiment enables cold water to cool the induction coil 3 through the cold water continuously flowing in the induction coil 3, and avoids the phenomenon that the induction coil 3 is too high in temperature and melts. In addition, after the plasma furnace slag discharging is finished, the cooling water can transfer heat through the insulating ceramic tube 2 to cool the graphite tube 1, so that the cooling speed of the graphite tube 1 is increased, and the effect of rapidly plugging the slag discharging opening is realized.

Preferably, the high-temperature slag discharge device of the plasma furnace of the embodiment further comprises an outer ceramic tube 4 and two ceramic gaskets 5, wherein the outer ceramic tube 4 is sleeved outside the induction coil 3 and coaxially arranged with the graphite tube 1, a gap is arranged between the outer ceramic tube 4 and the insulating ceramic tube 2, the lengths of the outer ceramic tube and the insulating ceramic tube are equal, and the two ceramic gaskets 5 are respectively sleeved at two ends of the graphite tube 1 and seal the gap between the outer ceramic tube 4 and the insulating ceramic tube 2. The two ends of the inner induction coil 3 penetrate out of the tube wall of the outer ceramic tube 4 and are connected with an external circuit. The outer ceramic tube 4 wraps the outer side of the induction coil 3 and plays a role in insulation protection for the induction coil 3. The ceramic gasket 5 is annular, and seals the gap between the outer ceramic tube 4 and the insulating ceramic tube 2, so that foreign matters are prevented from entering the gap between the outer ceramic tube 4 and the insulating ceramic tube 2 to interfere the induction coil 3, thereby causing short circuit of a circuit.

Preferably, the thickness range of the graphite tube 1 is 10mm-25mm, and the inner diameter range of the graphite tube 1 is 12mm-50mm, so that the induced current can fully heat the graphite tube 1 in the electrifying process, and waste residues in the graphite tube 1 can be rapidly heated to a molten state.

Preferably, the graphite tube 1 has a length greater than that of the insulating ceramic tube 2, both ends of the graphite tube 1 extend to the outside of the insulating ceramic tube 2, and the outlet end 12 of the graphite tube 1 is provided with a slope so as to introduce the slag inside the plasma furnace into the graphite tube 1 and discharge it to the outside of the plasma furnace in a molten state.

Preferably, the insulating ceramic tube 2 is a beryllium oxide ceramic tube, the thickness of the insulating ceramic tube 2 is 4mm-10mm, the beryllium oxide ceramic tube can resist high temperature, has good insulating property and good heat conducting property, and can quickly transfer the heat of the graphite tube 1 to the induction coil 3, so that the graphite tube 1 can be quickly cooled.

Preferably, the outer ceramic tube 4 is an alumina ceramic tube, the ceramic gasket 5 is an alumina ceramic gasket, and the outer ceramic tube 4 and the ceramic gasket 5 have good high-temperature resistance and can play a good insulating role.

The plasma furnace structure not described in the present invention is the prior art.

The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can make several modifications and improvements without departing from the inventive concept, and all shall be covered by the protection scope of the present invention.

Claims

1. The utility model provides a sediment device is arranged to plasma furnace high temperature which characterized in that, includes graphite pipe (1), insulating ceramic pipe (2) and induction coil (3), graphite pipe (1) with insulating ceramic pipe (2) are both ends open-ended hollow tubular structure, insulating ceramic pipe (2) overlap in the outside of graphite pipe (1) and with graphite pipe (1) coaxial arrangement, induction coil (3) around in the outside of insulating ceramic pipe (2).

2. The high-temperature slag discharging device of the plasma furnace according to claim 1, wherein the insulating ceramic tube (2) is attached to the outer side of the graphite tube (1), and the induction coil (3) is of a hollow structure and is filled with cooling water.

3. The high-temperature slag discharging device of the plasma furnace according to claim 2, further comprising an outer ceramic tube (4) and two ceramic gaskets (5), wherein the outer ceramic tube (4) is sleeved outside the induction coil (3) and is coaxially arranged with the graphite tube (1), a gap is arranged between the outer ceramic tube (4) and the insulating ceramic tube (2) and has the same length, and the two ceramic gaskets (5) are respectively sleeved at two ends of the graphite tube (1) and seal the gap between the outer ceramic tube (4) and the insulating ceramic tube (2).

4. The high-temperature slag discharge device of the plasma furnace according to claim 1, characterized in that the thickness of the graphite tube (1) is in the range of 10mm-25mm, and the inner diameter of the graphite tube (1) is in the range of 12mm-50 mm.

5. The high-temperature slag discharging device of the plasma furnace according to claim 1, wherein the graphite tube (1) has a length greater than that of the insulating ceramic tube (2), and both ends of the graphite tube (1) extend to the outside of the insulating ceramic tube (2).

6. The high-temperature slag discharge device of the plasma furnace according to claim 1, wherein the insulating ceramic tube (2) is a beryllium oxide ceramic tube, and the thickness of the insulating ceramic tube (2) is 4mm-10 mm.

7. The high-temperature deslagging device of the plasma furnace of claim 3, wherein the outer layer ceramic tube (4) is an alumina ceramic tube, and the ceramic gasket (5) is an alumina ceramic gasket.

8. The high-temperature slag discharging device of the plasma furnace according to claim 2, wherein the induction coil (3) is a hollow copper tube wound on the insulating ceramic tube (2).