CN215467959U

CN215467959U - Continuous casting secondary cooling spray set

Info

Publication number: CN215467959U
Application number: CN202121760783.5U
Authority: CN
Inventors: 张威东
Original assignee: Hebei Jing'an Spray Equipment Manufacturing Co ltd
Current assignee: Hebei Jing'an Spray Equipment Manufacturing Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-01-11
Anticipated expiration: 2031-07-30

Abstract

The application provides a continuous casting secondary cooling spray device, which comprises a nozzle, a secondary cooling section and a newly-added cooling section; the newly added cooling section comprises a spray pipe; the spraying pipe is of a double-layer structure, the inner pipe is connected with the first water supply assembly, and the outer pipe is connected with the second water supply assembly; the nozzle is fixedly arranged on the outer pipe and communicated with the inner pipe; the secondary cooling section is communicated with the outer pipe through a pipeline. According to the technical scheme that this application embodiment provided, through the shower that adopts bilayer structure, make newly-increased cooling section form two way water courses, the inlayer water course is used for spraying, and outside water course is used for cooling, can guarantee to draw the speed and can spray the cooling when very fast, can guarantee again to draw the speed and can not receive high temperature when very slow to roast and burn and lead to breaking down.

Description

Continuous casting secondary cooling spray set

Technical Field

The application relates to the technical field of continuous casting, in particular to a continuous casting secondary cooling spray device.

Background

Secondary cooling spray set that square slab caster used mostly sprays the water bar and adds the form of nozzle, sprays along the throwing direction of casting blank during the use and arranges to carry out abundant secondary cooling to the casting blank, reach the purpose of high quality, high yield solidification continuous casting billet.

Along with continuous progress of continuous casting technology, the drawing speed of a continuous casting machine is also continuously improved, the original secondary cooling length needs to be lengthened, design and transformation are needed, a new cooling section needs to be added, the new cooling section is usually put into use at high drawing speed, the new cooling section needs to be closed at normal and low drawing speed, the new cooling section can deform and bend under the baking and burning of a high-temperature casting blank in a waterless state after being closed, the nozzle has the problem of scaling, the nozzle is blocked when the casting machine is put into at high drawing speed again, the spray pipe deforms, the cooling efficiency is seriously influenced, the aim of assisting in spraying and cooling the casting blank cannot be fulfilled, the drawing speed of the casting machine cannot be improved, and the yield of the continuous casting machine is influenced.

Disclosure of Invention

In view of the above-mentioned drawbacks and deficiencies of the prior art, it would be desirable to provide a continuous casting secondary cooling spray apparatus.

The application provides a continuous casting secondary cooling spray device, which comprises a nozzle, a secondary cooling section and a newly-added cooling section; the newly added cooling section comprises a spray pipe; the spraying pipe is of a double-layer structure, the inner pipe is connected with the first water supply assembly, and the outer pipe is connected with the second water supply assembly; the nozzle is fixedly arranged on the outer pipe and communicated with the inner pipe; the secondary cooling section is communicated with the outer pipe through a pipeline.

Further, the nozzle comprises a base and a spray head; the base is arranged on the outer pipe; the spray head is connected with the base through a connecting pipe provided with a filtering component.

Further, the filter assembly includes a first filter grid and a second filter grid; one end of the connecting pipe close to the base is provided with a connecting sleeve for installing a first filtering grating.

Furthermore, a matched socket is arranged at one end of the connecting pipe close to the spray head corresponding to the second filtering grid; the second filter grill is removably mounted within the receptacle.

Furthermore, the connecting sleeve is detachably arranged on the base; the connecting pipe is sleeved with a first threaded sleeve; one end of the first threaded sleeve is provided with internal threads, and the other end of the first threaded sleeve is provided with an inner edge; the base is provided with matched external threads corresponding to the internal threads; and the corresponding inner edge on the connecting sleeve is provided with a matched outer edge for limiting the sliding stroke of the first threaded sleeve.

Furthermore, the spray head is detachably arranged on the connecting pipe; the connecting pipe is provided with external threads and is locked with the spray head through a second thread sleeve; the spray head is in an inverted T shape; the inside corresponding shower nozzle of second thread bush is equipped with the shoulder hole of matcing.

The application has the advantages and positive effects that:

according to the technical scheme, the newly-added cooling section forms two water channels by adopting the spray pipes with the double-layer structures, the inner water channel is used for spraying, and the outer water channel is used for cooling, so that the spraying cooling can be carried out when the pulling speed is high, and the faults caused by high-temperature roasting and burning can be avoided when the pulling speed is low;

furthermore, the secondary cooling section is communicated with the cooling water channel of the newly-added cooling section, so that running water flowing through the cooling water level in the newly-added cooling section is ensured, the newly-added cooling section is utilized to form a water storage container, cooling water entering the secondary cooling section is stable in water pressure, stable spraying is formed, and the production quality can be further improved.

Drawings

FIG. 1 is a schematic structural diagram of a continuous casting secondary cooling spray device provided by an embodiment of the application;

fig. 2 is a schematic structural diagram of a nozzle of the continuous casting secondary cooling spray device provided by the embodiment of the application.

The text labels in the figures are represented as: 100-a nozzle; 110-a base; 120-a spray head; 121-a second threaded sleeve; 130-connecting the pipes; 131-a first filter grid; 132-a second filter grid; 133-connecting sleeves; 134-a first threaded sleeve; 200-a secondary cooling section; 210-a second water supply assembly; 300-a spray pipe; 310-first water supply assembly.

Detailed Description

The following detailed description of the present application is given for the purpose of enabling those skilled in the art to better understand the technical solutions of the present application, and the description in this section is only exemplary and explanatory, and should not be taken as limiting the scope of the present application in any way.

Referring to fig. 1-2, the present embodiment provides a continuous casting secondary cooling spray device, which includes a secondary cooling section 200 and a newly added cooling section; the newly added cooling section comprises a spray pipe 300; the spraying pipe 300 is a double-layer structure, the inner pipe is used for spraying and is connected with the first water supply assembly 310, and the outer pipe is used for cooling and is connected with the second water supply assembly 210; the first water supply assembly 310 can selectively supply water according to the use condition of the newly added cooling section; the secondary cooling section passes through steel wire hose and outer union coupling, second water supply subassembly 210 is for continuously supplying water, even when first water supply subassembly 310 position stop water supply state, newly-increased cooling zone also can obtain effectual cooling, can not burn because of the high temperature and lead to the trouble to take place, simultaneously, the cooling water is through newly-increased cooling zone before feeding secondary cooling section 200, thereby make newly-increased cooling zone form water storage container, make the cooling water that gets into the secondary cooling section, water pressure is more stable, thereby form stable spraying, can further improve production quality.

In a preferred embodiment, the secondary cooling section and the newly added cooling section are respectively provided with a nozzle 100; the nozzle 100 includes a base 110 and a showerhead 120; taking the newly added cooling section as an example, the base 110 is fixedly installed on the spray pipe 300 and communicated with the inner pipe; the showerhead 120 is mounted on the susceptor 110 through a connecting pipe 130; the connecting pipe is arranged between the base and the spray head, so that the distance between the spray head and the base is increased, the distance between the spray head and the spray pipe is increased, the influence of the application environment on the spray pipe can be effectively reduced, and the service life of the spray pipe is further prolonged.

In a preferred embodiment, the connecting tube 130 is provided with a filter assembly; the filter assembly includes a first filter grill 131 and a second filter grill 132; a first filter grill 131 is detachably installed at one end of the connection pipe 130 near the base 110; a second filter grill 132 is detachably installed at one end of the connection pipe 130 near the spray head 120.

Preferably, the connecting pipe 130 is provided with a connecting sleeve 133 corresponding to the first filtering grille 131; the connecting sleeve 133 is positioned at the end part of the connecting pipe 130, and a matched slot is arranged in the connecting sleeve corresponding to the first filter grid 131; the end of the first filter grid 131 is inserted into and installed on the connection sleeve 133, and the body is located inside the base 110.

Preferably, the end of the connecting pipe 130 away from the connecting sleeve 133 is provided with a matching socket corresponding to the second filter grille 132; the second filter grill 132 is end-to-socket by inserting the body into the connecting tube 130.

In a preferred embodiment, the connecting tube 130 is connected to the base 110 by a connecting sleeve 133; the connecting sleeve 133 is provided with a butt joint groove corresponding to the base 110; the base 110 and the connecting sleeve 133 are connected by inserting and pulling through the butt-joint groove.

Preferably, the connecting tube 130 is locked with the base 110 by a first thread sleeve 134; the first threaded sleeve 134 is sleeved on the connecting pipe 130 and can slide relative to the connecting pipe 130; the base 110 is provided with external threads corresponding to the first thread bush 134; the connecting sleeve 133 is provided with a limiting convex edge corresponding to the first threaded sleeve 134; one end of the first threaded sleeve 134 is provided with a matched internal thread corresponding to the external thread, and the other end of the first threaded sleeve is provided with a matched internal edge corresponding to the limiting convex edge; when the first threaded sleeve 134 is screwed on the base 110, the connecting sleeve 133 is pressed on the base 110 by using the pulling force between the inner edge and the limiting convex edge.

In a preferred embodiment, the spray head 120 is detachably mounted on the connecting pipe 130, and is locked by the second thread bushing 121; the nozzle 120 is inverted T-shaped; the second screw cap 121 has a matching stepped hole corresponding to the nozzle 120, and is fitted over the nozzle 120 and threadedly coupled to the connecting pipe 130, so that the nozzle 120 is pressed against the connecting pipe 130 by a tensile force.

The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention in other contexts without modification may be viewed as within the scope of the present application.

Claims

1. A continuous casting secondary cooling spray device is characterized by comprising a nozzle (100), a secondary cooling section (200) and a newly added cooling section; the newly added cooling section comprises a spray pipe (300); the spraying pipe (300) is of a double-layer structure, an inner pipe is connected with the first water supply assembly (310), and an outer pipe is connected with the second water supply assembly (210); the nozzle (100) is fixedly arranged on the outer pipe and communicated with the inner pipe; the secondary cooling section (200) is communicated with the outer pipe through a pipeline.

2. The continuous casting secondary cooling spray device according to claim 1, wherein the nozzle (100) includes a base (110) and a spray head (120); the base (110) is mounted on the outer tube; the spray head (120) is connected with the base (110) through a connecting pipe (130) provided with a filtering component.

3. The continuous casting secondary cooling spray device of claim 2, characterized in that the filter assembly comprises a first filter grate (131) and a second filter grate (132); one end of the connecting pipe (130) close to the base (110) is provided with a connecting sleeve (133) used for installing the first filtering grille (131).

4. The continuous casting secondary cooling spray device according to claim 3, characterized in that one end of the connecting pipe (130) close to the spray head (120) is provided with a matched socket corresponding to the second filter grid (132); the second filter grill (132) is removably mounted within the receptacle.

5. The continuous casting secondary cooling spray device according to claim 3, wherein the connection sleeve (133) is detachably mounted on the base (110); a first threaded sleeve (134) is sleeved on the connecting pipe (130); one end of the first threaded sleeve (134) is provided with internal threads, and the other end of the first threaded sleeve is provided with an inner edge; the base (110) is provided with matched external threads corresponding to the internal threads; and the connecting sleeve (133) is provided with a matched outer edge corresponding to the inner edge and used for limiting the sliding stroke of the first threaded sleeve (134).

6. The continuous casting secondary cooling spray device according to claim 2, wherein the spray head (120) is detachably mounted on the connecting pipe (130); the connecting pipe (130) is provided with an external thread and is locked with the spray head (120) through a second thread sleeve (121); the spray head (120) is in an inverted T shape; and a matched stepped hole is formed in the second threaded sleeve (121) corresponding to the spray head (120).