CN217749262U - Continuous casting spray gun with filtration system - Google Patents

Abstract

The application provides a continuous casting spray gun with a filtering system, which comprises a base body and a first filtering component; the base body is respectively provided with an air inlet and a liquid inlet; the air inlet and the liquid inlet are respectively provided with a second filtering component for filtering; the first filtering component is positioned in the base body and is in butt joint with the liquid inlet; the base body is provided with a mounting groove corresponding to the first filtering component; the mounting groove is open structure, can dismantle between with first filtering component and be connected. According to the technical scheme provided by the embodiment of the application, the air inlet and the liquid inlet are respectively arranged on the substrate, air supply and liquid supply can be independently carried out, and effective filtration can be carried out before air supply and liquid supply enter the substrate by matching with the second filtering components on the air inlet and the liquid inlet, so that blockage is prevented; simultaneously, still be equipped with first filtering component in the base, after the feed liquor was filtered for the first time, still can carry out the second through first filtering component and filter.

Description

Continuous casting spray gun with filtration system

Technical Field

The application relates to the technical field of continuous casting cooling, in particular to a continuous casting spray gun with a filtering system.

Background

In the production process of a slab caster, the secondary cooling key component is the atomization performance, the online perfectness rate and the service life of a nozzle, and plays a role in lifting the weight of continuous casting billets and the continuous casting operation rate, and directly influences whether the continuous casting machine can move forward or not and whether the quality can be ensured or not. On the other hand, with the demands of cost reduction, efficiency improvement, energy saving, consumption reduction, carbon neutralization, carbon peak reaching and the like of a steel plant, the secondary cooling medium consumption of a continuous casting machine is required to be saved as much as possible on the premise of ensuring the quality, yield and process requirements, the medium consumption of a nozzle is required to be more accurate and fine, particularly, the compressed air consumption of an air-water atomizing nozzle is more economical and effective, the cooling utilization rate of the atomized water of the nozzle reaches the optimal state, the generation of excessive mechanical water and flowing water is reduced, meanwhile, the long period and high integrity of the online use of the nozzle are ensured, and the requirements of quality yield, energy saving and consumption reduction of continuous casting billets can be only ensured.

At present domestic and abroad generally used aerial fog nozzle is mostly simple and easy air water atomizing nozzle, and the inlet port of intaking has only been designed to simple combination flow requirement, and aqueous vapor mixing position is at aqueous vapor entrance department or in the near casting blank department of distal end, and the atomizing mode of air water is less that the latus rectum of intaking that is the main this kind of nozzle often designs with the crossing shear atomization perpendicularly, and the minimum only has 1.2 millimeters, and the during operation is very easily blockked up, consequently, the aforesaid is urgent to wait to solve.

Disclosure of Invention

In view of the above-identified deficiencies or inadequacies in the prior art, it would be desirable to provide a continuous casting lance with a filtration system.

The application provides a continuous casting spray gun with a filtering system, which comprises a base body and a first filtering component;

the base body is respectively provided with an air inlet and a liquid inlet; the air inlet and the liquid inlet are respectively provided with a second filtering component for filtering;

the first filtering component is positioned in the base body and is in butt joint with the liquid inlet; the base body is provided with a mounting groove corresponding to the first filtering component; the mounting groove is open structure, with can dismantle between the first filtering component and be connected.

Further, the liquid inlet is connected with the mounting groove through an inclined opening; the bevel connection is arranged along the circumferential direction and used for dredging liquid to enter along the inner wall of the mounting groove.

Further, the second filter assembly comprises an air outer grid and a water outer grid;

the air outer grid is arranged on the air inlet in a plugging and pulling manner and is sealed with the base body through a first sealing ring;

the water outer grid is installed on the liquid inlet in a plugging and pulling mode and is sealed between the base bodies through a second sealing ring.

Further, the first filter assembly comprises a first in-water grille; grid demountable installation in first water is in the mounting groove, fix through the plug.

Further, a spray head is also arranged on the base body; the spray head is connected with the base body through the pipe body and is used for mixing and atomizing liquid inlet and air inlet.

Further, the pipe body comprises an inner pipe and an outer pipe, and an interlayer is formed between the inner pipe and the outer pipe; the inner pipe is butted with the mounting groove; the interlayer is in butt joint with the air inlet.

Furthermore, a stepped hole is formed in the base body corresponding to the pipe body; the stepped hole is provided with an internal thread; the inner pipe is connected with the stepped hole through threads; the outer pipe is connected with the stepped hole through a butt joint.

Further, the device also comprises a high-temperature resistant gas filter screen; the high-temperature-resistant gas filter screen is positioned between the butt joint and the inner pipe; the inner side of the butt joint corresponds to the high-temperature-resistant gas filter screen and is provided with a matched clamping groove, and the outer side of the butt joint corresponds to the stepped hole and is provided with matched external threads.

Further, the device also comprises a second internal water grid; the second water inner grating is detachably arranged at the joint of the spray head and the inner pipe.

The application has the advantages and positive effects that:

according to the technical scheme, the air inlet and the liquid inlet are respectively formed in the substrate, air supply and liquid supply can be independently carried out, and effective filtration can be carried out before air supply and liquid supply enter the substrate by matching with the second filtering assemblies on the air inlet and the liquid inlet, so that blockage is prevented; simultaneously, still be equipped with first filtering component in the base, after the feed liquor was filtered for the first time, still can carry out the second through first filtering component and filter.

Drawings

FIG. 1 is a schematic structural diagram of a continuous casting spray gun with a filter system according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a positioning assembly of a continuous casting spray gun with a filtering system according to an embodiment of the present application.

The text labels in the figures are represented as: 100-a substrate; 101-bevel connection; 110-an outer air grid; 120-water external grating; 130-a first in-water grille; 140-plug screw; 150-a back sheet; 151-docking slot; 160-positioning holes; 170-butt joint; 171-high temperature resistant gas filter screen; 200-a spray head; 210-a water-distributing core; 220-a nozzle; 221-a nut; 230-a first airflow accelerating device; 240-a second in-water grille; 250-a second airflow accelerating device; 260-cyclone core; 310-an inner tube; 320-outer tube.

Detailed Description

The following detailed description of the present application is given in conjunction with the accompanying drawings for the purpose of enabling those skilled in the art to better understand the technical solution 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 spray gun with a filtering system, which includes a base 100 and a nozzle 200; the spray head 200 is connected with the base body 100 through a pipe body, so that a spray gun is formed; wherein, the base body 100 is provided with an air inlet and a liquid inlet respectively, and the spray head 200 is provided with a nozzle 220, thereby forming a complete spray system.

In a preferred embodiment, the tubular body comprises an inner tube 310 and an outer tube 320 that are coaxial; the inner pipe 310 is in butt joint with the liquid inlet and is used for conveying the liquid inlet; an interlayer is formed between the outer pipe 320 and the inner pipe 310, and the interlayer can convey the intake air after being butted with the intake port.

In a preferred embodiment, the nozzle 200 is provided with a first airflow accelerating device 230 corresponding to the pipe; the first airflow accelerating device 230 is provided with a through hole corresponding to the inner tube 310 and a laval accelerating hole corresponding to the interlayer; the through hole is coaxial with and communicates with the inner tube 310; the Laval accelerating holes are uniformly distributed around the through holes.

Preferably, a swirling flow core 260 is further arranged in the nozzle 200; the swirl cores 260 are mounted inside the through holes at the end of the first airflow acceleration device 230 away from the pipe body.

Preferably, a second water inner grid 240 is further installed in the through hole; the second in-water grill 240 is detachably installed at an end of the through-hole far from the cyclone core 260.

Preferably, the end of the first air flow accelerating device 230 away from the tube body is further provided with a second air flow accelerating device 250; the second airflow accelerating device 250 is provided with matching docking holes corresponding to the swirling flow core 260 and the laval accelerating holes, and meanwhile, a mixing cavity communicated with the docking holes is further provided at one end of the second airflow accelerating device 250 away from the first airflow accelerating device 230, and a discharge port with a relatively small aperture is provided at one end of the mixing cavity away from the docking holes.

Preferably, the water diversion core 210 is further installed at one end of the second airflow accelerating device 250 far away from the first airflow accelerating device 230; the water distribution core 210 is provided with an inlet and a plurality of outlets, wherein the inlet is in butt joint with the discharge port of the second airflow accelerating device 250, and the plurality of outlets are respectively communicated with the inlet and are used for accelerating the mixing of bubbles and preventing the secondary polymerization of air and water, thereby improving the atomization effect.

Preferably, the spray head 200 is further provided with a spray nozzle 220 corresponding to the water distribution core 210; the nozzle 220 is detachably mounted on the spray head 200 and fixed with the spray head 200 through a nut 221; the spray head 200 is provided with matched external threads corresponding to the nut 221; a matching abutment edge is provided between the nut 221 and the nozzle 220.

In a preferred embodiment, the device further comprises a filter assembly; the filter assembly includes an air outer grill 110, a water outer grill 120, and a first water inner grill 130;

the outer grid 120 of water demountable installation is on the inlet, and after the inlet was connected with outside confession liquid device, the inlet liquor can carry out first filtration through outer grid 120 of water, can effectively avoid leading to the jam because of adulterating in the inlet liquor.

The air outlet grill 110 is detachably installed on the air inlet, and after the air inlet is in butt joint with an external air supply device, air supply can be filtered through the air outlet grill 110 before entering the base body 110, so that blockage caused by impurities doped in the air inlet is avoided.

The first in-water grill 130 is installed inside the base 100; a matched mounting groove is formed in the base body 100 corresponding to the first internal water grille 130; the mounting groove is coaxial with the inner tube 310, one end of the mounting groove is butted with the inner tube 310, and the other end of the mounting groove penetrates through the base body 100.

Preferably, the end of the first internal water grate 130 far away from the inner pipe 310 through the installation groove can be detached from the base 100, after the installation, one end of the first internal water grate 130 abuts against the bottom of the installation groove, and the other end is fixed through the plug 140, thereby completing the installation.

In a preferred embodiment, one side of the mounting groove is communicated with the liquid inlet through an inclined opening 101; the bevel connection 101 is arranged along the circumferential direction, and the liquid can be dredged to enter along the inner wall of the mounting groove, so that the outer wall of the first water inner grid 130 can be flushed, and the blockage caused by excessive impurities on the first water inner grid 130 is avoided.

In a preferred embodiment, the base 100 is further provided with a positioning component; the positioning assembly comprises a back plate 150 and a positioning hole 160; locating hole 160 is located between air inlet and the inlet, and when butt joint with external supply device, can carry out effectual location through the pin that locating hole 160 cooperation was matchd.

Preferably, the back plate 150 is provided with a U-shaped ground connecting groove 151 respectively located at two sides of the positioning hole 160; the butt joint groove 151 is in a step shape along the axis direction of the positioning hole 160, the end, away from the base body 100, of the butt joint groove 151, where the positioning hole 160 is formed, is relatively wide, when the butt joint groove is in butt joint with a supply device, a spare nut can be firstly clamped in the butt joint groove 151, and locking is performed through matched bolts, so that operation is more convenient.

In a preferred embodiment, the base 100 is provided with a stepped hole corresponding to the tube; the stepped hole is provided with an internal thread; the inner tube 310 is connected with the stepped hole through a screw thread, and the outer tube 320 is butted with the stepped hole through a butt joint 170.

Preferably, a high-temperature resistant gas filter screen 171 is further arranged between the butt joint 170 and the inner pipe 310; the high-temperature-resistant gas filter screen 171 is positioned in the interlayer and can be used for filtering the inlet gas for the second time; the butt joint 170 is provided with a matching slot corresponding to the high temperature resistant gas filter screen 171, and is used for positioning and fixing the high temperature resistant gas filter screen 171.

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 (9)

1. A continuous casting lance with a filter system, comprising a base body (100) and a first filter assembly;

the base body (100) is respectively provided with an air inlet and a liquid inlet; the air inlet and the liquid inlet are respectively provided with a second filtering component for filtering;

the first filter assembly is positioned inside the base body (100) and is in butt joint with the liquid inlet; the base body (100) is provided with an installation groove corresponding to the first filtering component; the mounting groove is open structure, with can dismantle between the first filtering component and be connected.

2. The continuous casting lance with filter system according to claim 1, wherein the liquid inlet is connected with the mounting groove by a bevel (101); the bevel connection (101) is arranged along the circumferential direction and used for guiding liquid to enter along the inner wall of the mounting groove.

3. The continuous casting lance with filter system according to claim 1, characterized in that the second filter assembly comprises an air outer grate (110) and a water outer grate (120);

the air outer grid (110) is installed on the air inlet in a plugging mode and is sealed with the base body (100) through a first sealing ring;

the outer water grating (120) is installed on the liquid inlet in a plugging mode and is sealed with the base body (100) through a second sealing ring.

4. The continuous casting lance with filtration system of claim 1 wherein the first filter assembly includes a first in-water grate (130); the first water inner grid (130) is detachably arranged in the mounting groove and is fixed through a plug (140).

5. Continuous casting lance with filter system according to claim 1, characterized in that a spray head (200) is also mounted on the base body (100); the spray head (200) is connected with the base body (100) through a pipe body and used for mixing and atomizing liquid inlet and air inlet.

6. The continuous casting lance with the filter system as claimed in claim 5, wherein the pipe body comprises an inner pipe (310) and an outer pipe (320) forming an interlayer therebetween; the inner pipe (310) is butted with the mounting groove; the interlayer is in butt joint with the air inlet.

7. The continuous casting lance with the filter system as claimed in claim 6, characterized in that the base body (100) is provided with a stepped bore corresponding to the pipe body; the stepped hole is provided with an internal thread; the inner pipe (310) is connected with the stepped hole through threads; the outer pipe (320) is connected with the stepped hole through a butt joint (170).

8. The continuous casting lance with filter system according to claim 7 further comprising a refractory gas screen (171); the high-temperature-resistant gas filter screen (171) is positioned between the butt joint (170) and the inner pipe (310); the inner side of the butt joint (170) is provided with a matched clamping groove corresponding to the high-temperature-resistant gas filter screen (171), and the outer side of the butt joint corresponds to the stepped hole and is provided with a matched external thread.

9. The continuous casting lance with filtration system as claimed in claim 6 further comprising a second internal water grate (240); the second water inner grid (240) is detachably arranged at the joint of the spray head (200) and the inner pipe (310).

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