CN217757537U

CN217757537U - Pipe-buried type water-cooling blanking device

Info

Publication number: CN217757537U
Application number: CN202222023554.6U
Authority: CN
Inventors: 王志斌; 朱荣; 周恒贵; 陈友勤; 莫志远; 卢建林; 王文祥; 张金国
Original assignee: JIANGSU LIANXING COMPLETE SETS OF EQUIPMENT MANUFACTURE CO Ltd
Current assignee: JIANGSU LIANXING COMPLETE SETS OF EQUIPMENT MANUFACTURE CO Ltd
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2022-11-08
Anticipated expiration: 2032-08-02

Abstract

The utility model discloses a buried pipe type water-cooling unloader relates to the metallurgical technology field, including the feed opening, the inside of feed opening is provided with the cavity, the feed opening is located cavity internal fixed mounting and has vertical pipe one, the bottom fixedly connected with return bend of vertical pipe one, the vertical pipe two of other end fixedly connected with of return bend, the top input welding of vertical pipe one has branch pipe one, the top output welding of vertical pipe two has branch pipe two, the utility model discloses in, the feed opening adopts the mould casting to make, with vertical pipe one, return bend, vertical pipe two pre-buried in the die cavity of mould, branch pipe one, branch pipe two as for the mould outside, fix it through appurtenance, then the casting makes vertical pipe one, return bend, vertical pipe two and feed opening integrated into one piece, makes the inboard in feed opening not have welded joint, and high temperature resistance can improve, receives high temperature to influence for a short time, has avoided the fracture.

Description

Pipe-buried type water-cooling blanking device

Technical Field

The utility model relates to the technical field of metallurgy, especially, relate to a pipe laying type water-cooling unloader.

Background

The oxygen lance and the feed opening are key equipment for normal production of the converter, and the working state of the oxygen lance and the feed opening directly influences the normal operation of a steelmaking process. The main functions of the oxygen lance and the feed opening are that auxiliary raw materials are added into the converter through the feed opening and oxygen is blown into the converter through the oxygen lance during the smelting of the converter. Because the oxygen lance and the feed opening are in a high-temperature working environment of 1400 ℃ for a long time, the bottom of the feed opening is quickly burnt and smoke leakage due to the fact that high-temperature-resistant alloy cannot bear the high temperature, and the oxygen lance and the feed opening can normally work only by effective cooling.

Chinese patent publication No. CN103131819B discloses a cooling structure for an oxygen lance and a feed opening of a converter, and describes "including: oxygen gun case and feed opening cover, the feed opening cover includes: the annular lower feed opening is sleeved with the lower header in welded connection with the flue wall of the converter, the annular end face circumference of the lower feed opening is densely arranged to be connected with the lower feed opening sleeve branch pipes, the other ends of the densely arranged lower feed opening sleeve branch pipes are sleeved with the upper header which is also annular, and the device reduces the fault rate of the lower feed opening and oxygen due to the increase of the cooling effect, reduces the maintenance time and improves the production efficiency. The service life of the equipment is obviously prolonged, and the production cost is reduced. Importantly, the waste heat boiler effectively utilizes heat, reduces heat pollution emission and improves the utilization rate of heat energy.

However, the following drawbacks or problems still exist in connection with the prior art: firstly, the feed opening is formed by welding the feed opening sleeve branch pipe and the feed opening sleeve slat, the design easily causes excessive inner wall welding seams of the feed opening, cracks are easy to appear after long-term use, and the service life is influenced. Secondly, the feed opening sleeve branch pipe is vertically designed, cooling water enters from the upper part and exits from the lower part, so that the retention time of the cooling water in the feed opening sleeve branch pipe is too short easily, the absorption of the cooling water to heat is influenced, the cooling water is difficult to quickly vaporize, and the resource waste is easily caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a buried pipe type water-cooling blanking device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a buried pipe formula water-cooling unloader, includes the feed opening, the inside of feed opening is provided with the cavity, the feed opening is located cavity internal fixed mounting has vertical pipe one, the bottom fixedly connected with return bend of vertical pipe one, the vertical pipe two of other end fixedly connected with of return bend, the welding of the top input of vertical pipe one has branch pipe one, the welding of the top output of vertical pipe two has branch pipe two, vertical pipe one, return bend, vertical pipe two, branch pipe one, branch pipe two are a plurality of, and are a plurality of vertical pipe one, return bend, vertical pipe two, branch pipe one, branch pipe two all prolong the centre of a circle equidistance of feed opening and arrange, the equal fixedly connected with throttling arrangement of branch pipe one department, the welding of the input of branch pipe one has the last annular pipe, the input welding of last annular pipe has the inlet tube, branch pipe one, the inlet tube all is linked together with last annular pipe, the welding of the output of branch pipe two has the lower annular pipe, the output welding of lower annular pipe has the drain pipe, branch pipe two, the drain pipe all is linked together with the lower annular pipe, the inner wall of feed opening is provided with the water conservancy diversion piece that a plurality of equidistance was arranged.

Preferably, the top of the feed opening is horizontally arranged, and a flange is welded at the opening at the top of the feed opening.

Preferably, the bottom port of the feed opening is arranged in an inclined mode, the inclined angle of the bottom port of the feed opening ranges from 35 degrees to 40 degrees, the mounting plate is welded to the bottom port of the feed opening, and a plurality of through holes are formed in the outer wall of the mounting plate.

Preferably, the elbow is an arc-shaped pipeline, the vertical pipe I, the elbow and the vertical pipe II form a U-shaped pipeline, the U-shaped pipeline is formed by bending a vertical steel pipe, and the length of the vertical pipe I is larger than that of the vertical pipe II.

Preferably, the branch pipe is located on the inner side of the upper annular pipe, the water inlet pipe is located on the outer side of the upper annular pipe, the branch pipe is located on the inner side of the lower annular pipe, the water outlet pipe is located on the outer side of the lower annular pipe, the upper annular pipe is located above the lower annular pipe, and the upper main flow pipe and the lower main flow pipe are both hexagonal.

Preferably, the feed opening and the flow guide block are made of alloy carburizing steel materials by casting, the flow guide block is in a sawtooth shape, and the surface of the flow guide block is covered by high-chromium wear-resistant material overlaying welding.

Preferably, throttling arrangement includes preceding tube head, back tube head, protection ring, the one end of preceding tube head and the port fixed weld of branch pipe one, the other end of preceding tube head and the one end fixed weld of protection ring, the one end of back tube head and the port fixed weld of branch pipe one, the other end of back tube head and the other end fixed weld of protection ring, the slope notch has all been seted up, two to the inside of preceding tube head and back tube head the slope notch is linked together.

The utility model has the advantages that:

1. the utility model discloses in, vertical pipe one, return bend, vertical pipe two are by vertical steel pipe integrated into one piece after buckling to reduced the welding between the pipeline, made the difficult fracture of pipeline leak, and set up vertical pipe one, return bend and vertical pipe two that a plurality of equidistance were arranged through the inside at the feed opening, thereby it is even to reach the cooling.

2. The utility model discloses in, the feed opening adopts the mould casting to make, with vertical pipe one, return bend, vertical pipe two pre-buried in the die cavity of mould, branch pipe one, branch pipe two are as for the mould outside, fixed with it through appurtenance, then the casting makes vertical pipe one, return bend, vertical pipe two and feed opening integrated into one piece, makes the inboard of feed opening not have welded joint, and high temperature resistance can improve, receives high temperature influence little, has avoided the fracture.

3. The utility model discloses in, vertical pipe one, return bend, vertical pipe two adopt the design of U-shaped pipeline, have increased the dwell time of cooling water in the feed opening, do benefit to the cooling water and to thermal absorption, the cooling water in vertical pipe one, return bend, vertical pipe two absorbs a large amount of heats and makes feed opening temperature reduce.

4. The utility model discloses in, the blanking flushing face of feed opening sets up the water conservancy diversion piece, and the water conservancy diversion piece is the cockscomb structure, is made by the casting of alloy carburizing steel material, and the surface of water conservancy diversion piece adopts high chromium wear-resisting material build-up welding to cover, makes water conservancy diversion piece surface form and has resisted the protective layer that erodees, has improved the life of feed opening.

5. The utility model discloses in, through a branch pipe throttling arrangement's setting, make the interior roof beam of branch pipe one will locate to form local undergauge state at throttling arrangement, the static pressure reduces, through the through-hole setting of difference, thereby adjust the velocity of flow of fluid medium, the branch pipe one of guaranteeing different positions can both have stable cooling water yield, make every branch pipe one reach equal velocity of flow and flow, solve because the pressure differential that appears on last branch pipe one arouses vertical pipe one, the uneven gasified phenomenon that produces appears cold and hot on the vertical pipe two, and then improve the cooling effect.

Drawings

Fig. 1 is a schematic structural view of the buried pipe type water-cooling blanking device of the present invention.

Fig. 2 is the structural schematic diagram of a vertical pipe i, a bent pipe and a vertical pipe ii of the buried pipe type water-cooling blanking device of the present invention.

Fig. 3 isbase:Sub>A schematic view ofbase:Sub>A partial structure atbase:Sub>A-base:Sub>A in fig. 1 ofbase:Sub>A buried pipe type water-cooling blanking device of the present invention.

Fig. 4 is a schematic structural view of the throttling device of the buried pipe type water-cooling blanking device of the present invention.

Fig. 5 is a schematic view of a partial structure at B-B in fig. 1 of the buried pipe type water-cooling blanking device of the present invention.

The reference numbers in the figures: 1. a feeding port; 2. a cavity; 3. a first vertical pipe; 4. bending the pipe; 5. a vertical pipe II; 6. a water inlet pipe; 7. an upper main flow pipe; 8. a first branch pipe; 9. a second branch pipe; 10. a lower main flow pipe; 11. a drain pipe; 12. a flange; 13. mounting a plate; 14. a flow guide block; 15. a throttling device; 151. a front pipe head; 152. a rear pipe head; 153. a guard ring; 154. an inclined notch.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

As shown in figures 1 to 5:

a pipe-buried water-cooling blanking device comprises a blanking port 1, wherein the blanking port 1 is made of alloy carburizing steel through casting, a cavity 2 is formed in the blanking port 1, a first vertical pipe 3 is fixedly installed in the cavity 2 of the blanking port 1, the bottom end of the first vertical pipe 3 is fixedly connected with a bent pipe 4, the other end of the bent pipe 4 is fixedly connected with a second vertical pipe 5, the bent pipe 4 is an arc-shaped pipeline, the first vertical pipe 3, the bent pipe 4 and the second vertical pipe 5 form a U-shaped pipeline, the U-shaped pipeline is formed by bending a vertical steel pipe, the length of the first vertical pipe 3 is larger than that of the second vertical pipe 5, and the U-shaped pipeline is cast in the blanking port 1 so as to be integrally cast with the blanking port 1;

the inner wall of the feed opening 1 is provided with a plurality of guide blocks 14 which are arranged at equal intervals, the guide blocks 14 are positioned on the blanking flushing surface of the feed opening 1, the guide blocks 14 are made of alloy carburizing steel by casting, the guide blocks 14 are serrated, and the surfaces of the guide blocks 14 are covered by high-chromium wear-resistant materials by overlaying welding, so that a scouring-resistant protective layer is formed on the surfaces of the guide blocks 14, and the service life of the feed opening 1 is prolonged;

the bending device comprises a vertical pipe I3, a branch pipe I8, a branch pipe II 9, a plurality of vertical pipes I3, a bent pipe 4, a vertical pipe II 5, a branch pipe I8 and a branch pipe II 9, wherein the top input end of the vertical pipe I5 is welded with the branch pipe II 9, the plurality of vertical pipes I3, the bent pipe 4, the vertical pipe II 5, the branch pipe I8 and the branch pipe II 9 are arranged at equal intervals along the circle center of a feed opening 1, an upper main pipe 7 is welded with the input end of the branch pipe I8, a water inlet pipe 6 is welded with the input end of the upper main pipe 7, the branch pipe I8 and the water inlet pipe 6 are both communicated with an upper annular pipe 7, a lower main pipe 10 is welded with the output end of the branch pipe II 9, a drain pipe 11 is welded with the output end of the lower main pipe 10, the branch pipes II 9 and the drain pipe 11 are both communicated with the lower annular pipe 10, the branch pipe I8 is positioned on the inner side of the upper main pipe 7, the water inlet pipe 6 is positioned on the outer side of the upper main pipe 7, the branch pipe II 9 is positioned on the inner side of the lower main pipe 10, the drain pipe 11 is positioned on the outer side of the lower main pipe 10, the outer side of the upper main pipe 10, the upper main pipe 7 is positioned on the upper main pipe 10, and the lower main pipe 10, the lower hexagonal pipe 10;

the throttling device 15 is fixedly connected to the first branch pipe 8, the throttling device 15 comprises a front pipe head 151, a rear pipe head 152 and a protection ring 153, one end of the front pipe head 151 is fixedly welded with a port of the first branch pipe 8, the other end of the front pipe head 151 is fixedly welded with one end of the protection ring 153, one end of the rear pipe head 152 is fixedly welded with a port of the first branch pipe 8, the other end of the rear pipe head 152 is fixedly welded with the other end of the protection ring 153, inclined notches 154 are formed in the front pipe head 151 and the rear pipe head 152 respectively, the two inclined notches 154 are communicated to form through holes, the through holes in different positions are different in aperture, and the aperture of the through hole is smaller when the through hole is closer to the water inlet pipe 6;

by arranging the throttling device 15, the flow beams in the branch pipes I8 form a local reducing state at the throttling device 15, the static pressure is reduced, and the flow velocity of a fluid medium is adjusted by arranging different through holes, so that the branch pipes I8 at different positions can have stable cooling water quantity, each branch pipe I8 achieves equal flow velocity and flow quantity, the phenomenon of gasification caused by uneven cooling and heating caused by the pressure difference on the upper branch pipe I8 is solved, and the cooling effect is improved;

the top level of feed opening 1 sets up, and the welding of the open-top department of feed opening 1 has flange 12, and the bottom port slope of feed opening 1 sets up, and the bottom port inclination of feed opening 1 is 35-40, and the welding of the bottom port of feed opening 1 has mounting panel 13, and a plurality of through-holes have been seted up to mounting panel 13's outer wall, and through mounting panel 13 with feed opening 1 fixed mounting in converter furnace mouth department.

The specific use mode and function of the embodiment are as follows:

the utility model discloses during the use, vertical pipe 3, return bend 4, vertical pipe two 5 are integrated into one piece after being buckled by vertical steel pipe, thereby reduced the welding between the pipeline, make the pipeline difficult fracture leak, make the pipeline surface more level and smooth simultaneously, feed opening 1 adopts the mould casting to make, the port of vertical pipe 3 is welded with branch pipe one 8, the port of vertical pipe two 5 is welded with branch pipe two 9, pre-embed vertical pipe 3, return bend 4, vertical pipe two 5 in the die cavity of mould, branch pipe one 8, branch pipe two is as the mould outside, fix it through specialized tool, then the casting, make vertical pipe one 3, return bend 4, vertical pipe two 5 and feed opening 1 integrated into one piece, the inboard of making feed opening 1 in have no welded joint, high temperature resistance improves, receive high temperature to influence little, avoided the fracture;

various auxiliary materials enter the converter through the feed opening 1, cooling water enters the upper annular pipe 7 through the water inlet pipe 6, then enters the first vertical pipe 3, the bent pipe 4 and the second vertical pipe 5 through the branch pipe 8 connected to the inner side of the upper annular pipe 7, the first vertical pipe 3, the bent pipe 4 and the second vertical pipe 5 adopt a U-shaped pipeline design, the retention time of the cooling water in the feed opening 1 is prolonged, the cooling water can absorb heat, the cooling water in the first vertical pipe 3, the bent pipe 4 and the second vertical pipe 5 can absorb a large amount of heat to reduce the temperature of the feed opening 1, and a plurality of first vertical pipes 3, bent pipes 4 and second vertical pipes 5 which are arranged at equal intervals are arranged in the feed opening 1, so that uniform cooling is achieved;

through the arrangement of the throttling device 15 at the position of the first branch pipe 8, a flow beam in the first branch pipe 8 can form a local reducing state at the throttling device 15, static pressure is reduced, and through the arrangement of different through holes, the flow velocity of a fluid medium is adjusted, stable cooling water quantity can be guaranteed for the first branch pipes 8 at different positions, each first branch pipe 8 achieves equal flow velocity and flow quantity, the problem that due to the fact that the differential pressure appearing on the first branch pipe 8 causes uneven cooling and heating on the first vertical pipe 3 and the second vertical pipe 5 is solved, and the cooling effect is improved;

the blanking flushing surface of the blanking port 1 is provided with the guide block 14, the guide block 14 is serrated and is made of alloy carburizing steel through casting, the surface of the guide block 14 is covered by overlaying welding with high-chromium wear-resistant material, so that a flushing-resistant protective layer is formed on the surface of the guide block 14, and the service life of the blanking port 1 is prolonged.

The above structure and process are shown in FIGS. 1-5.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, but do not indicate or imply that the device or element 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 "first" 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" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a buried pipe type water-cooling blanking device, includes feed opening (1), its characterized in that, the inside of feed opening (1) is provided with cavity (2), fixed mounting has vertical pipe (3) in feed opening (1) is located cavity (2), the bottom fixedly connected with return bend (4) of vertical pipe (3), the other end fixedly connected with vertical pipe two (5) of return bend (4), the top input welding of vertical pipe (3) has branch pipe one (8), the top output welding of vertical pipe two (5) has branch pipe two (9), vertical pipe one (3), return bend (4), vertical pipe two (5), branch pipe one (8), branch pipe two (9) are a plurality of, and a plurality of vertical pipe one (3), return bend (4), vertical pipe two (5), branch pipe one (8), branch pipe two (9) all prolong the centre of a circle equidistance of feed opening (1) and arrange, branch pipe one (8) locates equal fixedly connected with device (15), the input of branch pipe one (7) has inlet tube (6), the input welding of branch pipe (7) has inlet tube (6), the branch pipe (6) all the welding has inlet tube (7), inlet tube (6) and the inlet tube (10) is linked together with the output end, the inlet tube (10), the output welding of lower mainstream pipe (10) has drain pipe (11), branch pipe two (9), drain pipe (11) all are linked together with lower mainstream pipe (10), the inner wall of feed opening (1) is provided with water conservancy diversion piece (14) that a plurality of equidistance were arranged.

2. The buried pipe type water-cooling blanking device according to claim 1, wherein the top of the blanking port (1) is horizontally arranged, and a flange (12) is welded at an opening at the top of the blanking port (1).

3. The buried pipe type water-cooling blanking device according to claim 1, wherein a bottom port of the blanking port (1) is arranged in an inclined manner, the bottom port of the blanking port (1) is inclined at an angle of 35-40 degrees, a mounting plate (13) is welded to the bottom port of the blanking port (1), and a plurality of through holes are formed in the outer wall of the mounting plate (13).

4. The buried pipe type water-cooling blanking device as claimed in claim 1, wherein the bent pipe (4) is an arc-shaped pipe, the first vertical pipe (3), the bent pipe (4) and the second vertical pipe (5) form a U-shaped pipe, the U-shaped pipe is formed by bending a vertical steel pipe, and the length of the first vertical pipe (3) is greater than that of the second vertical pipe (5).

5. The buried pipe type water-cooling blanking device according to claim 4, wherein the first branch pipe (8) is located on the inner side of the upper main flow pipe (7), the water inlet pipe (6) is located on the outer side of the upper main flow pipe (7), the second branch pipe (9) is located on the inner side of the lower main flow pipe (10), the water outlet pipe (11) is located on the outer side of the lower main flow pipe (10), the upper main flow pipe (7) is located above the lower main flow pipe (10), and the upper main flow pipe (7) and the lower main flow pipe (10) are hexagons.

6. The buried pipe type water-cooling blanking device according to claim 1, wherein the blanking port (1) and the flow guide block (14) are made of alloy carburizing steel through casting, the flow guide block (14) is serrated, and the surface of the flow guide block (14) is covered by high-chromium wear-resistant material through overlaying welding.

7. The buried pipe type water-cooling blanking device of claim 1, wherein the throttling device (15) comprises a front pipe head (151), a rear pipe head (152) and a protection ring (153), one end of the front pipe head (151) is fixedly welded with a port of a branch pipe (8), the other end of the front pipe head (151) is fixedly welded with one end of the protection ring (153), one end of the rear pipe head (152) is fixedly welded with the port of the branch pipe (8), the other end of the rear pipe head (152) is fixedly welded with the other end of the protection ring (153), inclined notches (154) are formed in the front pipe head (151) and the rear pipe head (152), and the inclined notches (154) are communicated with each other.