CN217843868U

CN217843868U - Plasma torch mounting port structure for solid waste treatment

Info

Publication number: CN217843868U
Application number: CN202220942319.6U
Authority: CN
Inventors: 陈庆高
Original assignee: Zhongshan Zhongsheng Environmental Technology Co ltd
Current assignee: Zhongshan Zhongsheng Environmental Technology Co ltd
Priority date: 2022-04-22
Filing date: 2022-04-22
Publication date: 2022-11-18
Anticipated expiration: 2032-04-22

Abstract

The utility model relates to a plasma gasification melting furnace technical field, concretely relates to plasma torch installing port structure for handling useless admittedly. The plasma torch is installed in the plasma torch, and the installing port structure comprises a shell, an injection port, a first sealing door, a second sealing door, a steel pipe sleeve, a sealing ring and a high-pressure shielding fan. Between plasma torch and the shell, except that the regional contact of sealing ring is comparatively inseparable, the space is all reserved to all the other parts to set up the shielding wind gap, the wind channel exit linkage of sealed wind channel and high-pressure shielding fan, all the other spaces are sealed with the metal sheet, can guarantee that the shielding wind that comes from high-pressure shielding fan can be blown into the melting furnace smoothly, through setting up twice sealing door, when plasma torch moves away because of changing the electrode, high temperature high-pressure gas can not follow the installing port and spout, the emergence of the injury accident of avoiding that can be better, safe and reliable.

Description

Plasma torch mounting port structure for solid waste treatment

Technical Field

The utility model relates to a plasma gasification melting furnace technical field, concretely relates to plasma torch installing port structure for handling useless admittedly.

Background

The plasma torch used in the plasma gasification melting furnace for solid waste treatment sprays plasma jet with the temperature of thousands to tens of thousands of degrees centigrade, and the plasma jet is generated by the working gas passing through the high-temperature electric arc between the cathode and the anode of the generator. The service life of the cathode and anode of a plasma torch is often only hundreds of hours due to its harsh operating conditions. When the plasma torch is used for a gasification melting furnace for treating solid wastes, there is a problem of electrode replacement. That is, on the one hand, the gasification melting furnace needs to be operated continuously for a long time, and on the other hand, the process of replacing the electrode requires that the plasma torch must be stopped to complete. This requires that the plasma torch electrode must be replaced on-line without stopping the operation of the melter. However, the on-line replacement process also faces a problem in that the plasma jet is injected into the gasification melting furnace at a high pressure, up to several thousand Pa, and the overall temperature of the region is as high as 1500 ℃ or more, and when the plasma torch is removed from the position of the mounting port of the gasification melting furnace, high-temperature and high-pressure gas is injected from the mounting port, causing a safety accident.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a plasma torch mounting hole structure for giving up useless admittedly handles when puting aside plasma torch from the mounting hole position of gasification melting furnace, high temperature high-pressure gas can not be followed the mounting hole and jetted out to the realization does not influence the safe change of plasma torch electrode under the gasification melting furnace normal operating prerequisite. The technical scheme is as follows:

a plasma torch mounting port structure for solid waste treatment is characterized by comprising a shell, a jet orifice, a first sealing door, a second sealing door, a steel pipe sleeve, a sealing ring and a high-pressure shielding fan, wherein the plasma torch is mounted in the plasma torch mounting port structure; the mounting port structure is an inclined tubular structure, the jet orifice is positioned at the front end of the mounting port structure, the pipe diameter of a front section pipe close to the jet orifice is slender, and the inner diameter of the front section pipe is slightly larger than the outer diameter of the plasma torch; through a section of transition pipe diameter which is gradually enlarged, the pipe diameter of the middle section pipe of the mounting opening structure is wider than that of the front section pipe, the outer diameter of the middle section pipe is matched with the inner diameter of the melting furnace opening, and the outer diameter of the rear section pipe is larger than that of the middle section pipe; a first sealing door is arranged in the middle section of the pipe, and the first sealing door is connected with the steel pipe sleeve at the rear section of the mounting opening structure through a first metal plate; the outer diameter of the steel pipe sleeve is smaller than the inner diameter of the middle section pipe, one end of the steel pipe sleeve extends into the middle section pipe diameter of the mounting opening structure, the other end of the steel pipe sleeve is connected with a second sealing door at the outer end of the mounting opening structure, an annular gap is reserved between the steel pipe sleeve and the shell of the middle section pipe, a shielding air opening is arranged at the gap, the shell extends outwards to enlarge the outer diameter of the rear section pipe, a sealing air channel with a certain distance is arranged outside the steel pipe sleeve through a second metal plate and the shell, an air channel outlet of the high-pressure shielding fan is connected with the shielding air opening through the sealing air channel, and the sealing air channel is not arranged to be closed; and sealing rings are arranged in the steel pipe sleeve and on the inner side of the second sealing door, and the high-pressure shielding fan is arranged on the outer side of the second sealing door.

Preferably, at least one high-pressure shielding fan is arranged, and a sealed air duct matched with an air duct outlet of the high-pressure shielding fan is arranged between the shell and the steel pipe sleeve, so that air blown out by the high-pressure shielding fan can be blown to the jet orifice through the sealed air duct and the shielding air opening.

Preferably, the first metal plate is an iron plate installed at a port where the steel pipe sleeve is connected with the first sealing door, a circular hole is formed in the middle of the first metal plate, the diameter of the circular hole is matched with the outer diameter of the plasma torch, and the diameter of the circular hole is smaller than that of the steel pipe sleeve.

Preferably, the size of the first sealing door is matched with the size of the middle circular hole of the first metal plate.

Preferably, the upper side of the first sealing door is mounted on the first metal plate through a rotating shaft, the lower side of the first sealing door is adsorbed on the first metal plate through a magnet when the first sealing door is closed, and the magnet is located at the rear end of the first metal plate on the lower side opposite to the rotating shaft. Preferably, the first sealing door is parallel to a line connecting the upper end and the lower end of the injection port when the first sealing door is closed.

Preferably, the inner diameter of the sealing ring is adapted to the outer diameter of the plasma torch.

Preferably, the outer wall of the steel pipe sleeve is provided with a plurality of threaded holes, the steel pipe sleeve is closely connected with the sealing ring through a fixing bolt, and the sealing ring can be tightly pressed on the plasma torch through the fixing bolt.

Preferably, a flange blind plate is arranged in the middle of the second sealing door, the diameter of the second sealing door is larger than the outer diameter of the steel pipe sleeve, and the diameter of the flange blind plate is slightly larger than the inner diameter of the sealing ring or is matched with the inner diameter of the sealing ring.

Compared with the prior art, the utility model discloses an useful part lies in:

the utility model provides a plasma torch installing port structure for solid waste treatment, through setting up twice sealing door, and under the effect of high pressure shielding fan, when the plasma torch was removed because of changing the electrode, high temperature high pressure gas can not spout out from the installing port, can better avoid the emergence of injury accident; the safety and the reliability are realized;

the utility model provides a pair of a plasma torch installing port structure for handling useless admittedly, the design is simple, easily operation, safe and reliable.

Drawings

Fig. 1 is a sectional structure view of a plasma torch mounting port structure for solid waste treatment provided by the utility model.

In the figure, 1-plasma torch; 2-a housing; 3-a magnet; 4-a first sealing door; 5-a first metal plate; 6-shielding the air port; 7-a sealing ring; 8-a second sealing door; 9-high-voltage shielding fan; 10-an ejection port; 11-steel pipe sleeve; 12-melting furnace outer wall metal plate; 13-sealing the air duct; 14-a second metal plate; 21-a front section pipe; 22-a middle section pipe; 23-posterior segment tube.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the invention; for the purpose of better illustrating the present embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; for those skilled in the art, some well-known structures in the drawings and descriptions thereof may be omitted; the terms "upper", "lower", "top", "bottom", "side", "end", "inner", "outer", and the like, indicate orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, and are used only for convenience in describing the present invention and for 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," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include at least one of the feature.

It should also be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

The present application is described in detail below with reference to the attached drawings.

As shown in fig. 1, a plasma torch mounting port structure for solid waste treatment, in which a plasma torch 1 is mounted, comprises a housing 2, a jet orifice 10, a first sealing door 4, a second sealing door 8, a steel pipe sleeve 11, a sealing ring 7, and a high-pressure shielding fan 9; the installation opening structure is an inclined tubular structure, the jet opening 10 is positioned at the front end of the installation opening structure, a front section tube 21 close to the jet opening 10 is slender in pipe diameter, and the inner diameter of the front section tube is slightly larger than the outer diameter of the plasma torch 1; through a section of transition pipe diameter which is gradually enlarged, the pipe diameter of a middle section pipe 22 of the mounting port structure is wider than that of a front section pipe 21, the mounting port structure is mounted at a melting furnace port in the middle of the upper part and the lower part of a metal plate 12 on the outer wall of the melting furnace, the outer diameter of the middle section pipe 22 is matched with the inner diameter of the melting furnace port, and the outer diameter of a rear section pipe 23 is larger than that of the middle section pipe 22, so that high-temperature and high-pressure gas in the melting furnace can be better prevented from being ejected.

A first sealing door 4 is arranged in the middle section pipe 22, and the first sealing door 4 is connected with the steel pipe sleeve 11 at the rear section of the mounting opening structure through a first metal plate 5; the outer diameter of the steel pipe sleeve 11 is smaller than the inner diameter of the middle section pipe 22, one end of the steel pipe sleeve 11 extends into the diameter of the middle section pipe 22 of the mounting opening structure, the other end of the steel pipe sleeve is connected with a second sealing door 8 at the outer end of the mounting opening structure, a circular gap is reserved between the steel pipe sleeve 11 and the shell 2 of the middle section pipe 22, a shielding air opening 6 is arranged at the gap, the shell 2 extends outwards to enable the outer diameter of the rear section pipe 23 to be enlarged, a sealing air channel 13 with a certain distance is arranged outside the steel pipe sleeve 11 through a second metal plate 14 and the shell 2, an air channel outlet of the high-pressure shielding fan 9 is connected with the shielding air opening 6 through the sealing air channel 13, and the sealing air channel is not arranged to be closed.

A sealing ring 7 is arranged inside the steel pipe sleeve 11 and on the inner side of the second sealing door 8, and a high-pressure shielding fan 9 is arranged on the outer side of the second sealing door 8.

The side of the shell 2 close to the inside of the gasification melting furnace, that is, the front section pipe 21 of the mounting port, is made of refractory material, and the side far from the gasification melting furnace, that is, the middle and rear sections, can be made of thickened metal material.

At least one high-pressure shielding fan 9 is arranged, and a sealed air duct 13 matched with an air duct outlet of the high-pressure shielding fan 9 is arranged between the shell 2 and the steel pipe sleeve 11. The air blown out by the high-pressure shielding fan 9 can enter the injection opening 10 from the inner part to the front end of the mounting opening structure through the air duct outlet, the sealed air duct 13 and the shielding air opening 6, and can prevent high-temperature and high-pressure gas from entering the mounting opening structure. A certain gap is reserved between the plasma torch 1 and the shell 2 except for the tight contact in the area of the sealing ring 7, so that the shielding wind from the high-pressure shielding fan 9 can be guaranteed to smoothly blow into the melting furnace. When the first sealing door 4 and the second sealing door 8 are both in an open state, the high-pressure shielding fan 9 may be in a closed state or an open state, so as to be used as a high-pressure fan for supplementing gasification air or a sealing fan for preventing high-temperature gas leakage.

First sealing door 4 is installed in the inside of this installing port through first metal sheet 5, first metal sheet 5 is the iron plate of installing in the port department that steel pipe box 11 meets with first sealing door 4, is equipped with the circular port in the middle of it, the diameter of circular port and plasma torch 1's external diameter looks adaptation, and the diameter of circular port is less than the diameter of steel pipe box 11, the size of first sealing door 4 and the size looks adaptation of the circular port in the middle of first metal sheet 5, can just in time block up the circular port.

The upside of first sealing door 4 is installed on first metal sheet 5 through the pivot, and its downside passes through magnet 3 and adsorbs on metal sheet 5 when closing, magnet 3 is located the rear end of the first metal sheet 5 of the relative downside of pivot. When the plasma torch 1 is in the mounting port structure, the first sealing door 4 is positioned above the plasma torch 1 and is placed in a nearly horizontal direction, namely, in an opening state; when closed, the first sealing door 4 is closed parallel to a line connecting the upper end and the lower end of the injection port 10.

The inner diameter of the sealing ring 7 is adapted to the outer diameter of the plasma torch 1. When the plasma torch is installed, the sealing ring 7 can tightly clamp the plasma torch 1 and form a closed space with the installation port structure.

The outer wall of the steel pipe sleeve 11 is provided with a plurality of threaded holes, the steel pipe sleeve 11 is closely connected with the sealing ring 7 through a fixing bolt, and the sealing ring 7 can be tightly pressed on the plasma torch 1 through the fixing bolt.

The flanged blind plate is arranged in the middle of the second sealing door 8, the diameter of the second sealing door 8 is larger than the outer diameter of the steel pipe sleeve 11, the diameter of the flanged blind plate is slightly larger than the inner diameter of the sealing ring 7, or the flanged blind plate is matched with the inner diameter of the sealing ring 7, the inner diameter opening of the sealing ring 7 can be just sealed, when the plasma torch 1 is moved away, the flanged blind plate is buckled, the sealing can be fine, and the whole installation opening structure of the utility model is sealed except for the injection opening 10 and the sealing air duct 13 connected with the high-pressure shielding fan 9.

When the electrode of the plasma torch 1 needs to be replaced, the plasma torch 1 is closed, the high-pressure shielding fan 9 is in a starting state and is in a maximum air volume state, then the plasma torch 1 is slowly drawn out from the mounting port, and when the front end of the plasma torch 1 leaves the first sealing door 4, the first sealing door 4 falls downwards and is closed due to the action of self gravity and clings to the first metal plate 5 under the action of the magnet 3 to realize primary sealing. After the plasma torch 1 is withdrawn from the second sealing door 8, the second sealing door 8 is manually closed, and secondary sealing is realized.

When the plasma torch 1 finishes electrode replacement and needs to be inserted into the gasification melting furnace again, the second sealing door 8 is manually opened firstly, the plasma torch 1 is inserted into the sealing ring 7 and gradually pushed into the melting furnace, then the first sealing door 4 sealed by the combination of gravity and magnetic attraction is pushed open, finally the fixing bolt beside the sealing ring 7 is screwed after the plasma torch 1 is inserted to the designed position, the plasma torch 1 is tightly fixed, and then the plasma torch 1 can be started. A plurality of plasma torches 1 arranged along the gasification melting furnace can sequentially finish the electrode replacement process in turn.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses the standard part that uses all can purchase from the market, perhaps customize according to the picture presentation, the concrete connection mode of each part all adopts conventional means such as ripe bolt in the prior art, rivets, welding, machinery, part and equipment all adopt conventional model in the prior art, for example fixing bolt and the screw hole of looks adaptation with it, the blind plate of flanged, all adopt conventional mounting means in the prior art, adopt conventional connected mode in the prior art in addition circuit connection, other parts that do not describe also adopt prior art, do not do the drawing concrete description here.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, the embodiments do not include only one independent technical solution, and such description is only for clarity, and those skilled in the art should take the description as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A plasma torch mounting port structure for solid waste treatment is characterized by comprising a shell, a jet orifice, a first sealing door, a second sealing door, a steel pipe sleeve, a sealing ring and a high-pressure shielding fan, wherein the plasma torch is mounted in the plasma torch mounting port structure; the mounting port structure is an inclined tubular structure, the jet orifice is positioned at the front end of the mounting port structure, the pipe diameter of a front section pipe close to the jet orifice is slender, and the inner diameter of the front section pipe is slightly larger than the outer diameter of the plasma torch; through a section of transition pipe diameter which is gradually enlarged, the pipe diameter of the middle section pipe of the mounting opening structure is wider than that of the front section pipe, the outer diameter of the middle section pipe is matched with the inner diameter of the melting furnace opening, and the outer diameter of the rear section pipe is larger than that of the middle section pipe; a first sealing door is arranged in the middle section of the pipe, and the first sealing door is connected with the steel pipe sleeve at the rear section of the mounting opening structure through a first metal plate; the outer diameter of the steel pipe sleeve is smaller than the inner diameter of the middle section pipe, one end of the steel pipe sleeve extends into the middle section pipe diameter of the mounting opening structure, the other end of the steel pipe sleeve is connected with a second sealing door at the outer end of the mounting opening structure, an annular gap is reserved between the steel pipe sleeve and the shell of the middle section pipe, a shielding air opening is arranged at the gap, the shell extends outwards to enlarge the outer diameter of the rear section pipe, a sealing air channel with a certain distance is arranged outside the steel pipe sleeve through a second metal plate and the shell, an air channel outlet of the high-pressure shielding fan is connected with the shielding air opening through the sealing air channel, and the sealing air channel is not arranged to be closed; and sealing rings are arranged in the steel pipe sleeve and on the inner side of the second sealing door, and the high-pressure shielding fan is arranged on the outer side of the second sealing door.

2. The plasma torch mounting port structure for solid waste treatment according to claim 1, wherein at least one high-pressure shielding blower is provided, and a sealed air duct adapted to an air duct outlet of the high-pressure shielding blower is provided between the housing and the steel pipe sleeve.

3. The plasma torch mounting port structure for solid waste treatment of claim 1, wherein the first metal plate is an iron plate mounted at a port of the steel pipe sleeve connected to the first sealing door, and a circular hole is formed in the middle of the first metal plate, the diameter of the circular hole is matched with the outer diameter of the plasma torch, and the diameter of the circular hole is smaller than that of the steel pipe sleeve.

4. The plasma torch mounting port structure for solid waste treatment of claim 3, wherein the size of the first sealing door is adapted to the size of the middle circular hole of the first metal plate.

5. The plasma torch mounting port structure for solid waste treatment of claim 4, wherein the upper side of the first sealing door is mounted on the first metal plate through a rotating shaft, and the lower side thereof is attracted to the first metal plate through a magnet at the rear end of the lower first metal plate opposite to the rotating shaft when the first sealing door is closed.

6. The plasma torch mounting port structure for solid waste treatment of claim 5, wherein the first sealing door is closed to be parallel to a line connecting an upper end and a lower end of the injection port.

7. The torch mounting port structure of claim 1, wherein the inner diameter of the sealing ring is adapted to the outer diameter of the torch.

8. The torch mounting port structure for solid waste treatment of claim 7, wherein the steel pipe sleeve is provided with a plurality of threaded holes on the outer wall, the steel pipe sleeve and the sealing ring are closely connected by fixing bolts, and the sealing ring can be pressed against the torch by the fixing bolts.

9. The plasma torch mounting port structure for solid waste treatment according to claim 1, wherein a flange blind plate is arranged in the middle of the second sealing door, the diameter of the second sealing door is larger than the outer diameter of the steel pipe sleeve, and the diameter of the flange blind plate is matched with the inner diameter of the sealing ring.