CN213614120U

CN213614120U - Special tool for oxygen burning and cleaning ladle long nozzle

Info

Publication number: CN213614120U
Application number: CN202022740553.4U
Authority: CN
Inventors: 王兴华
Original assignee: Jianlong Beiman Special Steel Co Ltd
Current assignee: Jianlong Beiman Special Steel Co Ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-07-06
Anticipated expiration: 2030-11-24

Abstract

A special tool for oxygen combustion cleaning of a ladle long nozzle belongs to the field of long nozzle cleaning tools. The utility model provides an at present instrument to the incomplete steel clearance effect of clearance long mouth of a river inner wall not good, the improper operation damages the inner wall in long mouth of a river easily, influences the life's in long mouth of a river problem. The utility model discloses a long mouth of a river, laval spray tube, connecting piece, connecting pipe, oxygen therapy pipe and oxygen source, the one end of oxygen therapy pipe is connected on the oxygen source, the other end and the connecting pipe intercommunication of oxygen therapy pipe, the other end of connecting pipe install on the connecting piece and with the connecting piece intercommunication, the other end of connecting piece and the input intercommunication of laval spray tube, the output and the long mouth of a river intercommunication of laval spray tube. The utility model discloses an install the Laval spray tube additional at long mouth of a river entry end, improve the flow rate of oxygen, play the high-efficient clearance to the incomplete steel of long mouth of a river inner wall.

Description

Special tool for oxygen burning and cleaning ladle long nozzle

Technical Field

The utility model relates to a bale long mouth of a river burns oxygen clearance specialized tool belongs to long mouth of a river clearance instrument field.

Background

The long nozzle is also called as a protection tube and is used between a steel ladle and a tundish to protect molten steel from secondary oxidation and prevent molten steel from splashing, otherwise, accidents such as cracking, breaking and the like are easy to occur during casting, and the long nozzle has strong adaptability to steel types and good erosion resistance;

at present, the excellent and special steel smelting continuous casting uses a ladle long nozzle to connect the molten steel circulation of the ladle and the tundish in the production process, and the ladle long nozzle belongs to a product with multi-furnace continuous casting and multiple use, when a furnace is alternated with the furnace, an operator uses 3 minutes or 4 minutes oxygen burning pipes to clean the residual steel on the inner wall of the nozzle, and the tool for cleaning the residual steel on the inner wall of the long nozzle has the following defects when in use:

1. when the 3-branch oxygen burning pipe or the 4-branch oxygen burning pipe is used for cleaning the residual steel, if the operation is improper, the inner wall of the long nozzle is burnt, the service life of the long nozzle is shortened, and the damaged refractory materials are peeled off in the casting process to pollute molten steel;

2. because the diameter of the oxygen burning pipe is much smaller than that of the long nozzle of the ladle, the diameter of the oxygen burning pipe is generally 30-40 mm, and the inner diameter of the long nozzle is 75mm, the phenomenon that the residual steel is not cleaned completely can occur during the residual steel cleaning, the residual steel is not cleaned in time or is not cleaned completely, the residual steel on the inner wall of the long nozzle can flow into the molten steel, and the purity of the molten steel is seriously influenced;

3. when the residual steel on the inner wall of the long nozzle is cleaned, because the diameter difference between the oxygen burning pipe and the long nozzle is large, part of the residual steel cleaning residues such as oxidation slag and the like can be attached to the inner wall of the long nozzle, and flow into a tundish along with molten steel discharged from a furnace, so that pollution and negative reaction of the oxidized molten steel are caused.

In summary, there is a need for a special tool for oxygen-burning cleaning of long nozzle, which can clean the residual steel on the inner wall of the long nozzle without damaging the long nozzle and has a good cleaning effect, to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a present instrument to the incomplete steel cleaning effect of clearance long mouth of a river inner wall not good, the improper inner wall that damages the long mouth of a river easily of improper operation, cause the problem of pollution to the molten steel easily, to prior art not enough, the utility model discloses a "big package long mouth of a river burns oxygen clearance specialized tool". A brief summary of the present invention is provided below in order to provide a basic understanding of some aspects of the present invention. It should be understood that this summary is not an exhaustive overview of the invention. It is not intended to identify key or critical elements of the invention or to delineate the scope of the invention.

The technical scheme of the utility model:

the utility model provides a bale of long mouth of a river burns oxygen clearance specialized tool, includes long mouth of a river, laval spray tube, connecting piece, connecting pipe, oxygen therapy pipe and oxygen source, and the one end of oxygen therapy pipe is connected on the oxygen source, and the other end and the connecting pipe intercommunication of oxygen therapy pipe, the other end of connecting pipe install on the connecting piece and with the connecting piece intercommunication, the other end of connecting piece and the input intercommunication of laval spray tube, the output and the long mouth of a river intercommunication of laval spray tube.

Furthermore, the oxygen therapy pipe is sleeved at one end of the connecting pipe, and a valve is arranged on the oxygen therapy pipe.

Furthermore, an external thread is processed on the outer wall of the connecting pipe, an internal thread is processed on the inner wall of the connecting piece, and the connecting piece is connected with the connecting pipe in a threaded connection mode.

Furthermore, a first gasket is arranged at the joint of the connecting pipe and the connecting piece.

Furthermore, the one end of connecting piece is connected with first connecting pipe, and the outer wall processing of first connecting pipe has the external screw thread, and processing has the internal thread on the inner wall of connecting piece, and the connecting piece is connected through threaded connection's mode with first connecting pipe, and the other end of first connecting pipe is installed on the laval spray tube, and first connecting pipe communicates with the input of laval spray tube.

Further, a second gasket is arranged at the joint of the first connecting pipe and the connecting piece.

Furthermore, the laval nozzle comprises an upper conical pipe, a narrow throat pipe and a lower conical pipe, the narrow opening end of the upper conical pipe is communicated with the narrow throat pipe, the other end of the narrow throat pipe is communicated with the narrow opening end of the lower conical pipe, and the upper conical pipe and the lower conical pipe are identical in structure.

Furthermore, the connecting piece comprises a connecting piece shell and a connecting piece pipe, and the connecting piece shell is sleeved on the outer side of the connecting piece pipe.

Furthermore, the connecting piece pipe is a silica gel hose.

The utility model has the advantages that:

1. the special oxygen-burning cleaning tool for the ladle long nozzle has good cleaning effect on the long nozzle, can effectively clean the residual steel in the long nozzle, and prevents the residual steel on the inner wall of the long nozzle from falling into the molten steel to pollute the molten steel;

2. the inner diameter of the laval nozzle of the utility model is the same as that of the long nozzle, so that the problem of damage to the long nozzle caused by improper operation can be avoided when the residual steel on the inner wall of the long nozzle is cleaned, and the service life of the long nozzle is effectively prolonged;

3. the utility model discloses an effectual medium flow velocity that has increased of laval spray tube can reach the efficient clearance to the long mouth of a river inner wall, and the mutual restriction of diameter between laval spray tube and the long mouth of a river can not produce the incline, can not appear the phenomenon that the residue hung the long mouth of a river inner wall.

Drawings

FIG. 1 is a schematic view of the overall structure of a special oxygen-burning cleaning tool for a ladle long nozzle;

FIG. 2 is a cross-sectional view of the connector;

fig. 3 is a schematic structural view of a laval nozzle.

In the figure, 1-long nozzle, 2-laval nozzle, 3-connecting piece, 4-connecting pipe, 5-oxygen therapy pipe, 6-valve, 7-oxygen source, 8-connecting piece shell, 9-connecting piece pipe, 10-first gasket, 11-second gasket, 12-upper conical pipe and 13-narrow throat pipe. 14-lower conical tube, 15-first connecting tube.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described below with reference to specific embodiments shown in the accompanying drawings. It should be understood that the description is intended to be illustrative 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 first embodiment is as follows: the embodiment is described with reference to fig. 1-3, and the special tool for oxygen combustion cleaning of a bale long nozzle of the embodiment comprises a long nozzle 1, a laval nozzle 2, a connecting member 3, a connecting pipe 4, an oxygen delivery pipe 5 and an oxygen source 7, wherein one end of the oxygen delivery pipe 5 is connected to the oxygen source 7, the other end of the oxygen delivery pipe 5 is communicated with the connecting pipe 4, the other end of the connecting pipe 4 is mounted on the connecting member 3 and is communicated with the connecting member 3, the other end of the connecting member 3 is communicated with an input end of the laval nozzle 2, an output end of the laval nozzle 2 is communicated with the long nozzle 1, the oxygen source 7 provides oxygen, the oxygen delivery pipe 5 delivers the oxygen of the oxygen source 7 to the connecting pipe 4, the oxygen enters the connecting member 3 after passing through the connecting pipe 4, the connecting member 3 is connected with the laval nozzle 2, the oxygen enters the laval nozzle 2 from the connecting member 3, and when the oxygen passes through, according to the principle of Laval spray tube 2, the flow of oxygen output increases by a wide margin, the output through Laval spray tube 2 gets into inside long mouth of a river 1 afterwards, the oxygen that has great velocity of flow can effectively clear up the steel scrap on the 1 inner wall in long mouth of a river, and can not lead to the fact the damage to the 1 inner wall in long mouth of a river, the output external diameter of Laval spray tube 2 equals with 1 internal diameter in long mouth of a river, form the restriction of mutual diameter, can not damage the inner wall in long mouth of a river 1 at the in-process of clearance, and can not produce the skew at the in-process of input oxygen.

The second embodiment is as follows: the embodiment is described with reference to fig. 1 to 3, and the special tool for oxygen combustion and cleaning of the ladle long nozzle of the embodiment is characterized in that the oxygen pipe 5 is sleeved at one end of the connecting pipe 4, the valve 6 is installed on the oxygen pipe 5, the valve 6 controls the flow of the oxygen flowing into the connecting pipe 4 in the oxygen pipe 5, and the oxygen flowing to the connecting pipe 4 from the oxygen pipe 5 can be opened or closed through the valve 6.

The third concrete implementation mode: the embodiment is described with reference to fig. 1 to 3, and the special tool for oxygen combustion and cleaning of the ladle long nozzle of the embodiment is characterized in that external threads are processed on the outer wall of the connecting pipe 4, internal threads are processed on the inner wall of the connecting part 3, the connecting part 3 is connected with the connecting pipe 4 in a threaded connection manner, the connecting pipe 4 is connected with the connecting part 3 in a threaded manner, so that the connecting pipe 4 mounted on the connecting part 3 can be conveniently detached at any time, and the special tool plays a convenient role in daily cleaning and maintenance of the cleaning tool.

The fourth concrete implementation mode: the embodiment is described with reference to fig. 1 to 3, and the special tool for oxygen combustion and cleaning of the ladle long nozzle of the embodiment is characterized in that a first gasket 10 is installed at the joint of the connecting pipe 4 and the connecting piece 3, and the first gasket 10 prevents oxygen from leaking in the conveying process.

The fifth concrete implementation mode: the embodiment is described with reference to fig. 1 to 3, and the special tool for oxygen combustion and cleaning of a bale long nozzle of the embodiment is characterized in that one end of a connecting piece 3 is connected with a first connecting pipe 15, the outer wall of the first connecting pipe 15 is provided with an external thread, the inner wall of the connecting piece 3 is provided with an internal thread, the connecting piece 3 is connected with the first connecting pipe 15 in a threaded manner, the other end of the first connecting pipe 15 is mounted on a laval nozzle 2, the first connecting pipe 15 is communicated with the input end of the laval nozzle 2, the connecting piece 3 is communicated with the laval nozzle 2 through the first connecting pipe 15, compared with the connection of the laval nozzle 2 directly with the connecting piece 3, the oxygen conveying amount is effectively increased, the leakage generated when the oxygen is conveyed from the connecting piece 3 to the laval nozzle 2 is prevented, one end of the first connecting pipe 15 is connected with the connecting piece 3 through the thread, and the cleaning tool is stable, the other end of the first connecting pipe 15 is inserted into the inlet end of the laval nozzle 2 to deliver oxygen into the laval nozzle 2.

The sixth specific implementation mode: the embodiment is described with reference to fig. 1 to fig. 3, and the special tool for oxygen combustion and cleaning of the ladle long nozzle of the embodiment is characterized in that a second gasket 11 is installed at a joint of the first connecting pipe 15 and the connecting piece 3, and the second gasket 11 plays a role in sealing the joint of the first connecting pipe 15 and the connecting piece 3, so as to prevent oxygen from leaking during the conveying process.

The seventh embodiment: the present embodiment is described with reference to fig. 1 to 3, and the laval nozzle 2 of the present embodiment includes an upper conical pipe 12, a narrow throat 13 and a lower conical pipe 14, the narrow end of the upper conical pipe 12 is communicated with the narrow throat 13, the other end of the narrow throat 13 is communicated with the narrow end of the lower conical pipe 14, the upper conical pipe 12 and the lower conical pipe 14 have the same structure, the inner diameter of the upper conical pipe 12 is reduced from large to small and is the same as the inner diameter of the narrow throat 13, the inner diameter of the lower conical pipe 14 is expanded from small to large and is extended outward to the outlet end, when oxygen flows into the inner cavity of the upper conical pipe 12 from the connecting member 3 and then escapes from the lower conical pipe 14 after passing through the narrow throat 13, the structure can change the speed of the air flow due to the change of the sectional area of the nozzle, so as to greatly accelerate the flow speed of the oxygen flowing through, the high-speed oxygen can effectively clean the residual steel on the inner wall of the long nozzle 1, high-efficiency cleaning work can be realized; the upper conical pipe 12, the narrow throat pipe 13 and the lower conical pipe 14 are sequentially arranged, and the upper conical pipe 12, the narrow throat pipe 13 and the lower conical pipe 14 are processed in an integrated processing mode.

The specific implementation mode is eight: the embodiment is described with reference to fig. 1 to 3, and the special tool for oxygen combustion and cleaning of the ladle long nozzle of the embodiment includes a connector housing 8 and a connector pipe 9, the connector housing 8 is sleeved outside the connector pipe 9, because the connector 3 is a bent pipe, the bent portion of the bent pipe is relatively weak, and the bent portion is air leakage or damaged due to long-time oxygen impact, the connector housing 8 is sleeved outside the connector pipe 9, and the connector housing 8 is a metal housing or a plastic housing, so that the problem of damage and air leakage caused by long-time use of the connector pipe 9 can be effectively prevented.

The specific implementation method nine: the embodiment is described with reference to fig. 1 to 3, and the special tool for oxygen-burning cleaning of the bale long nozzle of the embodiment is characterized in that the connecting pipe 9 is a silica gel hose, the silica gel hose is convenient to replace and has high flexibility, when the silica gel hose is adopted, because the silica gel hose has good elasticity, one end of the silica gel hose is directly sleeved on the connecting pipe 4, the other end of the silica gel hose is sleeved on the first connecting pipe 15, oxygen can be conveyed, and effective sealing performance can be achieved according to the good elasticity of the silica gel hose to prevent oxygen leakage.

This embodiment is only illustrative of the patent and does not limit the scope of protection thereof, and those skilled in the art can make modifications to its part without departing from the spirit of the patent.

Claims

1. The utility model provides a bale long mouth of a river burns oxygen clearance specialized tool which characterized in that: including long mouth of a river (1), laval spray tube (2), connecting piece (3), connecting pipe (4), oxygen therapy pipe (5) and oxygen source (7), the one end of oxygen therapy pipe (5) is connected on oxygen source (7), the other end and connecting pipe (4) intercommunication of oxygen therapy pipe (5), the other end of connecting pipe (4) is installed on connecting piece (3) and is linked together with connecting piece (3), the other end of connecting piece (3) and the input intercommunication of laval spray tube (2), the output and the long mouth of a river (1) intercommunication of laval spray tube (2).

2. The special tool for oxygen combustion and cleaning of the ladle long nozzle according to claim 1, wherein: the oxygen therapy pipe (5) is sleeved at one end of the connecting pipe (4), and a valve (6) is installed on the oxygen therapy pipe (5).

3. The special tool for oxygen combustion and cleaning of the ladle long nozzle according to claim 1, wherein: the outer wall of the connecting pipe (4) is provided with external threads, the inner wall of the connecting piece (3) is provided with internal threads, and the connecting piece (3) is connected with the connecting pipe (4) in a threaded connection mode.

4. The special tool for oxygen combustion and cleaning of the ladle long nozzle according to claim 3, wherein: and a first gasket (10) is arranged at the joint of the connecting pipe (4) and the connecting piece (3).

5. The special tool for oxygen combustion and cleaning of the ladle long nozzle according to claim 1, wherein: the one end of connecting piece (3) is connected with first connecting pipe (15), and the outer wall processing of first connecting pipe (15) has the external screw thread, and processing has the internal thread on the inner wall of connecting piece (3), and connecting piece (3) are connected through threaded connection's mode with first connecting pipe (15), and the other end of first connecting pipe (15) is installed on laval spray tube (2), and first connecting pipe (15) communicates with the input of laval spray tube (2).

6. The special tool for oxygen combustion and cleaning of the ladle long nozzle according to claim 5, wherein: and a second gasket (11) is arranged at the joint of the first connecting pipe (15) and the connecting piece (3).

7. The special tool for oxygen combustion and cleaning of the ladle long nozzle according to claim 1, wherein: the laval nozzle (2) comprises an upper conical pipe (12), a narrow throat pipe (13) and a lower conical pipe (14), the narrow opening end of the upper conical pipe (12) is communicated with the narrow throat pipe (13), the other end of the narrow throat pipe (13) is communicated with the narrow opening end of the lower conical pipe (14), and the upper conical pipe (12) and the lower conical pipe (14) are identical in structure.

8. The special tool for oxygen combustion and cleaning of the ladle long nozzle according to claim 1, wherein: the connecting piece (3) comprises a connecting piece shell (8) and a connecting piece pipe (9), and the connecting piece shell (8) is sleeved on the outer side of the connecting piece pipe (9).

9. The special tool for oxygen combustion and cleaning of the ladle long nozzle according to claim 8, wherein: the connecting piece pipe (9) is a silica gel hose.