CN117222093A - Plasma torch and plasma torch system for gasifying solid wastes - Google Patents

Abstract

The invention provides a solid waste gasified plasma torch and a plasma torch system, wherein the solid waste gasified plasma torch comprises a shell and an electrode group, wherein a containing space is arranged in the shell, and a gas inlet and a gas outlet which are respectively connected with the containing space are arranged on the shell; the electrode groups are arranged in the accommodating space in a matrix manner, gaps are reserved between the adjacent electrode groups, each electrode group comprises anodes and cathodes which are distributed at intervals, an ionization field is formed between each anode and each cathode, and the ionization fields between the electrode groups are communicated. The solid waste gasification plasma torch has long service life. In addition, the invention arranges the electrode groups in the containing space of the shell in a matrix way, so that the gas can pass through the ionization fields of a plurality of electrode groups arranged in the matrix way, the ionization path is longer, and the ionization is more uniform and sufficient.

Description

Plasma torch and plasma torch system for gasifying solid wastes

Technical Field

The invention relates to the technical field of solid waste treatment, in particular to a plasma torch for solid waste gasification.

Background

In the gasification treatment of solid waste, a plasma torch is generally used as a high temperature heat source. A plasma torch is a device that utilizes a high temperature, high energy electron beam generated by a plasma to heat, melt, vaporize, oxidize, reduce, etc., chemical reactions. The plasma torch works on the principle that gas is passed through an electric field between electrodes to ionize gas molecules and form plasma. The plasma is a high-temperature and high-energy ionized gas, the temperature of which can reach thousands of degrees or even tens of thousands of degrees, and the energy density is very high.

At present, the existing plasma torch adopts a single electrode structure, and the temperature is required to be heated to 3000-5000 ℃ in the gasification treatment process of solid waste residues, so that the requirement on the single electrode material is very high, and the use cost of the electrode is high. And the power reaching the required temperature is pulled up by the single electrode, so that the service life of the electrode is lower, and the service life of the plasma torch is lower. Further, since the conventional plasma torch has a single electrode structure, there is a problem in that gas ionization is insufficient and uneven.

Accordingly, there is a need to provide a plasma torch for solid waste gasification that has a long life and more uniform ionization, and to provide a plasma torch system having the same.

Disclosure of Invention

A first object of the present invention is to provide a plasma torch for gasification of solid wastes with a long service life and a more uniform ionization.

A second object of the present invention is to provide a plasma torch system having a long life, more uniform ionization of the solid waste gasified plasma torch.

In order to achieve the first object, the present invention provides a solid waste gasification plasma torch, comprising a housing and an electrode group, wherein the housing is provided with a containing space, and the housing is provided with a gas inlet and a gas outlet which are respectively connected with the containing space; the electrode groups are arranged in the accommodating space in a matrix manner, gaps are reserved between the adjacent electrode groups, each electrode group comprises anodes and cathodes which are distributed at intervals, an ionization field is formed between each anode and each cathode, and the ionization fields between the electrode groups are communicated.

Compared with the prior art, the plasma torch for gasifying solid wastes is provided with the plurality of electrode groups, and each electrode group can ionize the air force by using relatively low power, so that the gas is ionized in a superposition way through the plurality of electrode groups, and the plasma formed after ionization reaches the required high temperature. Therefore, the invention can improve the service life of the electrode group and reduce the use cost of the electrode group by arranging a plurality of electrode groups to achieve the condition of required equal power, so the solid waste gasification plasma torch has long service life. In addition, the invention arranges the electrode groups in the containing space of the shell in a matrix way, so that the gas can pass through the ionization fields of a plurality of electrode groups arranged in the matrix way, the ionization path is longer, and the ionization is more uniform and sufficient.

Preferably, each electrode group is spirally distributed along the same straight line direction.

Preferably, the electrode groups are distributed in parallel along the same straight line direction.

Preferably, the anodes are in one-to-one correspondence with the cathodes.

Preferably, the anode and the cathode are both cylindrical structures.

In order to achieve the second object, the invention provides a plasma torch system, which comprises a wind distribution structure, a wind source providing device and the solid waste gasified plasma torches, wherein a wind distribution space is arranged in the wind distribution structure, the wind source providing device is connected with the wind distribution structure, the wind source providing device is used for providing a wind source for the wind distribution space, a plurality of the solid waste gasified plasma torches are respectively connected to the wind distribution structure, a conduit which is communicated with the gas outlet and the wind distribution space is arranged between each shell and the wind distribution structure, the wind distribution structure is also provided with a wind distribution outlet which is communicated with the wind distribution space, and the wind distribution outlet is used for being communicated with a gasification furnace.

Compared with the prior art, the plasma torch system provided by the invention has the plasma torch for gasifying solid wastes, and the plasma torch for gasifying the solid wastes is provided with a plurality of electrode groups, and each electrode group can ionize the air force by using relatively low power, so that the gas is subjected to superposition ionization through the plurality of electrode groups, and the plasma formed after ionization reaches the required high temperature. Therefore, the invention can improve the service life of the electrode group and reduce the use cost of the electrode group by arranging a plurality of electrode groups to achieve the condition of required equal power, so the solid waste gasification plasma torch has long service life. The invention arranges the electrode groups in the containing space of the shell in a matrix way, and the gas can pass through the ionization fields of the electrode groups arranged in the matrix way, so that the ionization path is longer, and the ionization is more uniform and sufficient. Furthermore, by arranging the air distribution structure, plasma formed by ionization in each solid waste gasified plasma torch can enter an air distribution space of the air distribution structure, and the air source providing device is utilized to distribute air to the air distribution space, so that the plasma in the air distribution space is uniformly distributed, and the temperature of a plasma heat source discharged from an air distribution outlet is uniform.

Drawings

Fig. 1 is a block diagram of a first embodiment of a solid waste gasified plasma torch of the present invention.

Fig. 2 is an internal structural view of a second embodiment of a solid waste gasified plasma torch of the present invention.

Fig. 3 is a block diagram of a plasma torch system of the present invention.

Detailed Description

In order to describe the technical content and constructional features of the present invention in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.

Referring to fig. 1, a solid waste gasification plasma torch 100 of the present invention includes a housing 1 and an electrode set 2, wherein a receiving space 11 is provided in the housing 1, and a gas inlet 12 and a gas outlet 13 are provided on the housing 1 and respectively connected with the receiving space 11; the electrode groups 2 are arranged in the accommodating space 11 in a matrix manner, gaps are reserved between the adjacent electrode groups 2, the electrode groups 2 comprise anodes 21 and cathodes 22 which are distributed at intervals, an ionization field is formed between the anodes 21 and the cathodes 22, and the ionization fields among the electrode groups 2 are communicated. The gas can enter the accommodating space 11 from the gas inlet 12 of the housing 1, then ionize through an ionization field between the anode 21 and the cathode 22 of the electrode group 2, and finally be discharged from the gas outlet 13. The solid waste gasification plasma torch 100 may further include a high voltage power source (not shown) electrically connected to each electrode group 2 and a power source controller (not shown) connected to the high voltage power source and for controlling the high voltage power source to be turned on or off. The manner and principle of the electrical connection between the high-voltage power supply and each electrode set, and the manner and principle of the connection between the power supply controller and the high-voltage power supply are well known to those skilled in the art, and are not described herein.

Referring to fig. 2, in one embodiment, each electrode set 2 is spirally distributed along the same straight line. By arranging the electrode groups 2 in spiral distribution, the gas can be ionized in the three-dimensional space in 360 degrees along the same straight line direction, and the uniformity of gas ionization is further ensured.

Referring to fig. 1, in one embodiment, the electrode sets 2 are parallel along the same straight line. By arranging the respective electrode groups 2 in parallel, the gas can be rapidly ionized while the gas ionization path is prolonged.

It should be noted that the electrode sets 2 are not limited to the above-mentioned spiral and parallel arrangement, and for example, in other embodiments, the electrode sets 2 may be arranged in an arc shape.

Referring to fig. 1, in one embodiment, the anode 21 and the cathode 22 are in one-to-one correspondence.

Referring to fig. 2, in one embodiment, the anode 21 and the cathode 22 are both cylindrical structures. However, the anode 21 and the cathode 22 may have a sheet structure, a ring structure, or the like.

Referring to fig. 3, the present invention further provides a plasma torch system 200, which includes a wind distribution structure 201, a wind source providing device 202 and the above solid waste gasified plasma torches 100, wherein a wind distribution space 201a is provided in the wind distribution structure 201, the wind source providing device 202 is connected with the wind distribution structure 201, the wind source providing device 202 is used for providing a wind source for the wind distribution space 201a, a plurality of solid waste gasified plasma torches 100 are respectively connected to the wind distribution structure 201, a conduit 203 is provided between each housing 1 and the wind distribution structure 201, and is communicated with the gas outlet 13 and the wind distribution space 201a, the wind distribution structure 201 is further provided with a wind distribution outlet 201b communicated with the wind distribution space 201a, and the wind distribution outlet 201b is used for being communicated with the gasifier. The plasma formed by ionization in each solid waste gasified plasma torch 100 can enter the air distribution space 201a of the air distribution structure 201 through a conduit, and air is distributed to the air distribution space 201a by the air source providing device 202, so that the plasma in the air distribution space 201a is uniformly distributed, and then is discharged from the air distribution outlet 201b, and then can enter the gasifier.

In summary, the plasma torch system 200 of the present invention has a solid waste gasified plasma torch 100, and the solid waste gasified plasma torch 100 is provided with a plurality of electrode sets 2, each electrode set 2 can ionize the gas with relatively low power, so that the gas is ionized by the plurality of electrode sets 2 in a superposition manner, so that the plasma formed after ionization reaches the required high temperature. Therefore, the present invention can increase the service life of the electrode group 2 and reduce the use cost of the electrode group 2 by providing a plurality of electrode groups 2 to achieve the required equivalent power, and thus the solid waste gasification plasma torch 100 of the present invention has a long service life. In the invention, the electrode groups 2 are arranged in the accommodating space 11 of the shell 1 in a matrix, so that gas can pass through the ionization fields of the plurality of electrode groups 2 arranged in the matrix, and the ionization path is longer, so that the ionization is more uniform and sufficient. Furthermore, by arranging the air distribution structure 201, plasma formed by ionization in each solid waste gasified plasma torch 100 can enter the air distribution space 201a of the air distribution structure 201, and the air source providing device 202 is utilized to distribute air to the air distribution space 201a, so that the plasma in the air distribution space 201a is uniformly distributed, and the temperature of a plasma heat source discharged from the air distribution outlet 201b is uniform.

The foregoing disclosure is only illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.

Claims (6)

1. A solid waste gasification plasma torch, comprising:

the shell is internally provided with an accommodating space, and a gas inlet and a gas outlet which are respectively connected with the accommodating space are arranged on the shell;

the electrode groups are arranged in the accommodating space in a matrix manner, gaps are reserved between the adjacent electrode groups, each electrode group comprises anodes and cathodes which are distributed at intervals, an ionization field is formed between each anode and each cathode, and the ionization fields between the electrode groups are communicated.

2. The solid waste gasification plasma torch as set forth in claim 1 wherein each electrode set is spirally distributed in the same straight line direction.

3. The solid waste gasification plasma torch as set forth in claim 1 wherein each electrode set is arranged in parallel in a straight line direction.

4. The solid waste gasified plasma torch of claim 1, wherein the anode is in one-to-one correspondence with the cathode.

5. The solid waste gasification plasma torch of claim 1 wherein the anode and the cathode are each of cylindrical configuration.

6. A plasma torch system, characterized by comprising a wind distribution structure, a wind source providing device and a plasma torch for solid waste gasification according to any one of claims 1-5, wherein a wind distribution space is arranged in the wind distribution structure, the wind source providing device is connected with the wind distribution structure, the wind source providing device is used for providing a wind source for the wind distribution space, a plurality of plasma torches for solid waste gasification are respectively connected to the wind distribution structure, a conduit for communicating the gas outlet with the wind distribution space is arranged between each shell and the wind distribution structure, and the wind distribution structure is also provided with a wind distribution outlet communicated with the wind distribution space, and the wind distribution outlet is used for being communicated with a gasifier.