CN213570573U - Anti-splashing KR desulfurization cluster jet spray gun - Google Patents
Anti-splashing KR desulfurization cluster jet spray gun Download PDFInfo
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- CN213570573U CN213570573U CN202022499843.4U CN202022499843U CN213570573U CN 213570573 U CN213570573 U CN 213570573U CN 202022499843 U CN202022499843 U CN 202022499843U CN 213570573 U CN213570573 U CN 213570573U
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- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The utility model relates to a prevent KR desulfurization efflux spray gun tied in a bundle that spatters, including the spray gun bending section, spray gun straight tube section, spray gun cluster section and the spray gun bend that connects gradually, spray gun cluster section is used for the powder to accelerate, is formed with the internal diameter from spray gun straight tube section one side to spray gun bend one side gradually the transition step that diminishes; the spray gun bend is used for changing the powder spraying direction, and a spray head which is arranged at a certain inclination angle relative to the powder conveying direction of the spray gun bundling section is formed. The utility model can greatly improve the utilization rate of the desulfurizer, improve the diffusion speed of the desulfurizer, shorten the desulfurization time, reduce the consumption of the desulfurizer and improve the desulfurization efficiency; meanwhile, the spray gun bend is arranged, so that the desulfurizer can penetrate through the surface of molten iron to enter the molten iron in the direction perpendicular to the liquid level of the molten iron, splashing of the molten iron can be effectively reduced, the slagging condition of the stirring paddle at the center of the molten iron ladle is improved, the desulfurizer can be further saved, efficient desulfurization is realized, and the service life of the stirring paddle is prolonged.
Description
Technical Field
The utility model relates to a desulfurization spray gun, especially a prevent KR desulfurization efflux spray gun tied in a bundle that spatters.
Background
The traditional KR desulfurizer feeding mode mainly comprises the following steps: the desulfurizer is added into the foundry ladle from a high position through a self-weight through a telescopic chute or is added into the foundry ladle through a pneumatic conveying through the telescopic chute. The feeding mode has weak power, the desulfurizer is drawn into the molten iron by vortex formed by stirring, part of the desulfurizer is sucked into the dust remover, and the desulfurizer reaching the surface of the molten iron is partially wrapped by the slag layer, so that the utilization rate of the desulfurizer is low.
In order to solve the problems, a mode of feeding materials by using a desulfurization spray gun is provided in the prior art. The conventional KR desulfurizing agent cluster jet spray gun is generally of a straight cylinder structure, and when KR is fed, the spray gun is obliquely inserted into a ladle and positioned above the surface of molten iron to spray powder. This feeding method has the following defects: because the spray gun is inserted into the ladle to the one side and is located above the molten iron liquid level and carry out the operation of dusting, lead to spun powder air current to splash the iron slag, the iron slag that splashes just in time flies to the stirring rake at hot-metal bottle center, meets gathering soon after the cold on the stirring rake oar pole, along with the increase of live time, the iron slag that gathers on the stirring rake can be more and more, can directly influence molten iron desulfurization effect and stirring rake life-span.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main objective is overcome prior art's shortcoming, provides one kind and can improve the utilization ratio of desulfurizer greatly, improves the diffusion velocity of desulfurizer, shortens the desulfurization time, improves desulfurization efficiency, effectively reduces the splash of scum, improves the stirring rake slagging scorification condition at ladle center, realizes high-efficient desulfurization to can prolong stirring rake life's prevent spouting KR desulfurization jet spray gun tied in a bundle.
The utility model adopts the following technical scheme:
a spray-proof KR desulfurization cluster jet spray gun comprises a spray gun bending section, a spray gun straight pipe section, a spray gun cluster section and a spray gun bend which are connected in sequence, wherein the spray gun bending section, the spray gun straight pipe section, the spray gun cluster section and the spray gun bend all form a hollow conveying pipeline, and the spray gun bending section is used for guiding flow so that powder can uniformly and stably enter the spray gun straight pipe section; the spray gun bundling section is used for accelerating powder and forms a transition step with the inner diameter gradually reduced from one side of the spray gun straight pipe section to one side of the spray gun bend; the spray gun bend is used for changing the powder spraying direction, a spray head which is arranged at a certain inclination angle relative to the powder conveying direction of the spray gun bundling section is formed, and the spray head faces the molten iron liquid level when the spray gun is inclined for feeding.
Furthermore, the inclination angle of the spray head of the spray gun bend relative to the powder conveying direction of the spray gun bundling section is 105-165 degrees.
Furthermore, the inclination angle of the spray head of the spray gun bend relative to the powder conveying direction of the spray gun bundling section is 135 degrees.
Furthermore, the inner diameter of the transition step of the spray gun bundling section is uniformly reduced from one side of the spray gun straight pipe section to one side of the spray gun bend-turning elbow.
Furthermore, the length of a transition step of the spray gun bundling section is 90mm, and the inner diameters of two ends of the transition step are 65mm and 40mm respectively.
Furthermore, the spray gun bend comprises a straight pipe used for being connected with the spray gun bundling section and a spray head integrally formed with the straight pipe, and smooth chamfer transition is formed between the straight pipe and the spray head.
Furthermore, the spray gun bending section and the spray gun straight pipe section as well as the spray gun straight pipe section and the spray gun bundling section are connected through flange connecting pieces.
Furthermore, the spray gun bend and the spray gun bundling section are integrally formed or in threaded connection.
Further, the bent section of the spray gun forms smooth chamfer transition.
Furthermore, the center lines of the hollow conveying pipelines of the spray gun bending section, the spray gun straight pipe section, the spray gun bundling section and the spray gun bend-changing straight pipe are on the same straight line.
It can be known from the above description of the present invention, compared with the prior art, the beneficial effects of the present invention are:
the utility model can realize the acceleration of the desulfurizer by arranging the spray gun bundling section, so that the desulfurizer can reach the high speed of more than 100m/s, and directly impact the molten iron surface to enter the molten iron, thereby greatly improving the utilization rate of the desulfurizer, improving the diffusion speed of the desulfurizer, shortening the desulfurization time, reducing the consumption of the desulfurizer and improving the desulfurization efficiency; through setting up the spray gun bend that changes direction, can make the desulfurizer penetrate the molten iron surface with the direction of perpendicular to molten iron liquid level and enter into the molten iron inside, can effectively reduce the splash of iron slag, improve the stirring rake slagging condition at ladle center, can further save the desulfurizer, realize high-efficient desulfurization to the life of extension stirring rake.
Drawings
FIG. 1 is a sectional view of the overall structure of a anti-splashing KR desulfurization cluster jet spray gun in embodiment 1 of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
fig. 3 is a schematic view of the use state of the anti-splashing KR desulfurization cluster jet spray gun of embodiment 1 of the present invention.
In the figure: 1. the spray gun comprises a spray gun bending section, 2 spray gun straight pipe sections, 3 spray gun bundling sections, 31 transition steps, 4 spray gun bend-changing elbows, 41 straight pipes, 42 spray heads and 5 stirring paddles.
Detailed Description
The present invention will be further described with reference to the following detailed description.
Example 1
Referring to fig. 1 to 3, the utility model discloses a prevent KR desulfurization efflux spray gun tied in a bundle that spatters, including spray gun bending section 1, spray gun straight tube section 2, the spray gun collection that connects gradually restraints section 3 and spray gun changes to elbow 4, and spray gun changes to elbow 4 including being used for with the spray gun collection restraints the straight tube 41 of section 3 being connected and with straight tube 41 integrated into one piece's shower nozzle 42. The spray gun bending section 1, the spray gun straight pipe section 2, the spray gun bundling section 3 and the spray gun bend 4 form a hollow conveying pipeline, and the center lines of the hollow conveying pipelines of the spray gun bending section 1, the spray gun straight pipe section 2, the spray gun bundling section 3 and the straight pipe 41 of the spray gun bend 4 are on the same straight line. Spray gun bend section 1 and spray gun straight tube section 2 and spray gun cluster between the section 3 all are connected through flange joint spare, and spray gun bend 4 and spray gun cluster section 3 integrated into one piece.
The spray gun bending section 1 is communicated with the injection tank and used for guiding the flow so that the powder can uniformly and stably enter the spray gun straight pipe section 2, and the spray gun bending section 1 forms smooth chamfer transition. The straight lance pipe section 2 is used for transition between the curved lance section 1 and the bundling lance section 3. The spray gun bundling section 3 is used for powder acceleration and is provided with a transition step 31 with the inner diameter gradually and uniformly reduced from one side of the spray gun straight pipe section 2 to one side of the spray gun bend 4; the length of the transition step 31 of the spray gun bundling section 3 is 90mm, and the inner diameter of the transition step 31 is gradually reduced to 40mm from 65 mm. The spray gun bend 4 is used for changing the powder spraying direction, the spray head 42 is inclined at an angle of 135 degrees relative to the powder conveying direction of the spray gun bundling section 3, and the spray head 42 is vertically oriented to the liquid level of molten iron when the spray gun is inclined for feeding; smooth chamfer transition is formed between the straight pipe 41 of the spray gun bend 4 and the spray head 42.
Referring to fig. 1 to 3, the utility model discloses a prevent that KR desulfurization efflux spray gun tied in a bundle that spatters is used for reinforced time, and the slope inserts and lies in the molten iron liquid level in the ladle and spray powder more than. After being pressurized and fluidized, a desulfurizing agent in a blowing tank is conveyed into a spray gun bending section 1 through a pipeline under the pushing of blowing-assisting gas, nitrogen is used as the blowing-assisting gas by the desulfurizing agent, the powder flow realizes stable flow guide in the spray gun bending section 1, so that powder uniformly and stably enters a spray gun straight pipe section 2, the powder reaches a spray gun bundling section 3 after passing through the transition of the spray gun straight pipe section 2, the effects of powder gas contraction, pressurization and acceleration are realized in the spray gun bundling section 3, finally, the powder gas passes through a spray gun bend 4 at the tail end, so that the desulfurizing agent leaves a spray gun nozzle 42 at the speed of about 100m/s, the powder penetrates through the surface of molten iron to enter the interior of the molten iron in the direction perpendicular to the liquid level of the molten iron, the splashing of the molten iron can be effectively reduced, the slagging condition of a stirring paddle 5 is improved, high-efficiency desulfurization is realized, and.
By adopting the anti-splashing KR desulfurization cluster jet spray gun and the blowing feeding mode for feeding, the desulfurizer can be saved by more than 20 percent; the spray gun is provided with a spray gun bend 4, the slagging of the stirring paddle 5 is improved, and compared with a straight cylinder type desulfurization spray gun, the service life of the stirring paddle 5 can be prolonged by more than 40%.
Example 2
This example differs from example 1 in that: the spray head 42 of the spray gun redirection elbow 4 is inclined at an angle of 150 degrees relative to the powder conveying direction of the spray gun bundling section 3. The length of the transition step 31 of the spray gun bundling section 3 is 100mm, and the inner diameter of the transition step 31 is gradually reduced to 45mm from 70 mm.
Example 3
This example differs from example 1 in that: the spray head 42 of the spray gun redirection elbow 4 is inclined at an angle of 120 degrees relative to the powder conveying direction of the spray gun bundling section 3. The spray gun bend 4 is connected with the spray gun bundling section 3 through screw thread.
The aforesaid is only the utility model discloses a three embodiment, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.
Claims (10)
1. The utility model provides a prevent KR desulfurization efflux spray gun tied in a bundle that spatters which characterized in that: the spray gun comprises a spray gun bending section, a spray gun straight pipe section, a spray gun bundling section and a spray gun bend which are connected in sequence, wherein the spray gun bending section, the spray gun straight pipe section, the spray gun bundling section and the spray gun bend all form a hollow conveying pipeline, and the spray gun bending section is used for guiding flow so that powder can uniformly and stably enter the spray gun straight pipe section; the spray gun bundling section is used for accelerating powder and forms a transition step with the inner diameter gradually reduced from one side of the spray gun straight pipe section to one side of the spray gun bend; the spray gun bend is used for changing the powder spraying direction, a spray head which is arranged at a certain inclination angle relative to the powder conveying direction of the spray gun bundling section is formed, and the spray head faces the molten iron liquid level when the spray gun is inclined for feeding.
2. The anti-splashing KR desulfurization cluster jet lance of claim 1, which is characterized in that: the inclination angle of a spray head of the spray gun redirection elbow relative to the powder conveying direction of the spray gun bundling section is 105-165 degrees.
3. The anti-splashing KR desulfurization cluster jet lance of claim 1 or 2, which is characterized in that: the inclination angle of the spray head of the spray gun bend relative to the powder conveying direction of the spray gun bundling section is 135 degrees.
4. The anti-splashing KR desulfurization cluster jet lance of claim 1, which is characterized in that: the inner diameter of the transition step of the spray gun bundling section is uniformly reduced from one side of the spray gun straight pipe section to one side of the spray gun bend.
5. The anti-splashing KR desulfurization cluster jet lance of claim 4, which is characterized in that: the length of the transition step of the spray gun bundling section is 90mm, and the inner diameters of two ends of the transition step are 65mm and 40mm respectively.
6. The anti-splashing KR desulfurization cluster jet lance of claim 1, which is characterized in that: the spray gun bend comprises a straight pipe used for being connected with the spray gun bundling section and a spray head integrally formed with the straight pipe, and smooth chamfer transition is formed between the straight pipe and the spray head.
7. The anti-splashing KR desulfurization cluster jet lance of claim 1, which is characterized in that: the spray gun bending section is connected with the spray gun straight pipe section and the spray gun straight pipe section is connected with the spray gun bundling section through flange connecting pieces.
8. The anti-splashing KR desulfurization cluster jet lance of claim 1, which is characterized in that: the spray gun bend-changing elbow is integrally formed with the spray gun bundling section or in threaded connection with the spray gun bundling section.
9. The anti-splashing KR desulfurization cluster jet lance of claim 1, which is characterized in that: and the bent section of the spray gun forms smooth chamfer transition.
10. The anti-splashing KR desulfurization cluster jet lance of claim 6, which is characterized in that: the center lines of the hollow conveying pipelines of the spray gun bending section, the spray gun straight pipe section, the spray gun bundling section and the spray gun bend-changing elbow straight pipe are on the same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022499843.4U CN213570573U (en) | 2020-11-02 | 2020-11-02 | Anti-splashing KR desulfurization cluster jet spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022499843.4U CN213570573U (en) | 2020-11-02 | 2020-11-02 | Anti-splashing KR desulfurization cluster jet spray gun |
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| Publication Number | Publication Date |
|---|---|
| CN213570573U true CN213570573U (en) | 2021-06-29 |
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|---|---|---|---|
| CN202022499843.4U Active CN213570573U (en) | 2020-11-02 | 2020-11-02 | Anti-splashing KR desulfurization cluster jet spray gun |
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| CN (1) | CN213570573U (en) |
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- 2020-11-02 CN CN202022499843.4U patent/CN213570573U/en active Active
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