CN214212206U

CN214212206U - Durable pouring basket nozzle pocket brick

Info

Publication number: CN214212206U
Application number: CN202023235199.6U
Authority: CN
Inventors: 史文
Original assignee: Zhucheng Jinde Refractory Co ltd
Current assignee: Zhucheng Jinde Refractory Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-09-17
Anticipated expiration: 2030-12-29

Abstract

The utility model is suitable for a tundish nozzle pocket brick technical field provides a durable tundish nozzle pocket brick, include: the base body is of a two-layer stepped structure, a main sprue gate is arranged at the top of the first step, a secondary sprue gate is arranged at the junction of the first step and the second step, the secondary sprue gate inclines downwards, the bottom of the secondary sprue gate is communicated with the main sprue gate, a mounting hole matched with a molten steel nozzle is arranged at the bottom of the base body, and an upper nozzle of the molten steel nozzle corresponds to the bottom of the main sprue gate. Inferior sprue gate sheath, its with inferior sprue gate corresponds the setting, the sheath top is equipped with molten steel injection groove and locating plate, the locating plate with the cooperation of first step side, molten steel injection groove bottom with the cooperation of second step top, borrow this, the utility model discloses a reduce when the molten steel is poured erode the corruption to with the last mouth of a river, set up simultaneously and dismantle the pot hole cover, guarantee the durability of device.

Description

Durable pouring basket nozzle pocket brick

Technical Field

The utility model relates to a middle package mouth of a river brick cup technical field especially relates to a durable middle package mouth of a river brick cup.

Background

The tundish nozzle pocket brick is placed below a tundish nozzle and on the vibration platform, molten steel in the tundish flows into a crystallizer on the vibration platform through the tundish nozzle pocket brick to be cooled, and steel drawing is realized through continuous vibration of the vibration platform.

In order to reduce erosion of an upper nozzle, a tundish nozzle pocket brick is mainly realized by reducing the contact area of molten steel and the upper nozzle and reducing the flow rate of the molten steel, the main pouring gate of the conventional tundish nozzle pocket brick is too large, the area of the molten steel impacting the upper nozzle is relatively large, the erosion force to the upper nozzle is strong, the tundish nozzle pocket brick cannot be matched with continuous casting for long-time pulling and straightening, the production efficiency is influenced, and then the pouring gate is single, the opening is too large to form a vortex, and impurities can enter a crystallizer to influence the quality of a steel billet.

In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.

SUMMERY OF THE UTILITY MODEL

To foretell defect, the utility model aims to provide a durable tundish nozzle pocket brick, it can solve and appear not buffering when the haplopore pouring, and is more serious to the erosion and corrosion of the mouth of a river of feeding, adopts oblique sprue gate, through the pouring of a plurality of directions, makes molten steel pouring in-process molten steel self accomplish the buffering, reduces to the erosion and corrosion with the mouth of a river of feeding, sets up simultaneously and to dismantle the pot head, guarantees the durability of device.

In order to achieve the above object, the utility model provides a durable tundish nozzle pocket brick, include: the base body is of a two-layer stepped structure, a main sprue gate is arranged at the top of the first step, a secondary sprue gate is arranged at the junction of the first step and the second step, the secondary sprue gate inclines downwards, the bottom of the secondary sprue gate is communicated with the main sprue gate, a mounting hole matched with a molten steel nozzle is arranged at the bottom of the base body, and an upper nozzle of the molten steel nozzle corresponds to the bottom of the main sprue gate. And the secondary pouring gate sheath is arranged corresponding to the secondary pouring gate, a molten steel injection groove and a positioning plate are arranged at the top of the sheath, the positioning plate is matched with the side surface of the first step, and the bottom of the molten steel injection groove is matched with the top of the second step.

According to the utility model discloses a durable tundish nozzle pocket brick, inferior sprue gate sheath with inferior sprue gate is clearance connection, inferior sprue gate sheath is detachable construction.

According to the utility model discloses a durable tundish nozzle pocket brick, inferior sprue gate is equipped with threely, just is 120 degrees distributions each other at same height between inferior sprue gate.

According to the utility model discloses a durable tundish nozzle pocket brick, main sprue gate is the bell mouth, and its top is equipped with the chamfer.

According to the utility model discloses a durable tundish nozzle pocket brick, main sprue gate bottom diameter slightly is less than go up the mouth of a river diameter.

The utility model provides a durable tundish nozzle pocket brick, include: the base body is of a two-layer ladder structure, a main pouring gate is arranged at the top of the first ladder and is responsible for pouring most of molten steel, the pouring process of pouring is guaranteed, a secondary pouring gate is arranged at the junction of the first ladder and the second ladder, the molten steel is added into the secondary pouring gate in the pouring process of the main pouring gate, so that the molten steel of the pouring gate forms an intersection process in the inner part, the two downward scouring forces can be offset and weakened by virtue of the scouring effect of the molten steel in the intersection process, the action of scouring force of the upper nozzle is reduced, the secondary pouring gate inclines downwards, the bottom of the secondary pouring gate is communicated with the main pouring gate, the bottom of the base body is provided with a mounting hole matched with the molten steel nozzle, the upper nozzle of the molten steel nozzle corresponds to the bottom of the main pouring gate, and therefore, the molten steel can completely enter the upper nozzle during the pouring of the molten steel, preventing the occurrence of more residues. Inferior sprue gate sheath, its with inferior sprue gate corresponds the setting, through setting up the water conservancy diversion effect when the sheath guarantees the molten steel pouring, prevents remaining of residue simultaneously after the pouring, leads to inferior sprue gate blocking phenomenon to appear, the sheath top is equipped with molten steel injection groove and locating plate, the locating plate with first step side cooperation, molten steel injection groove bottom with the cooperation of second step top guarantees the location effect of sheath, prevents to appear running through the unable problem of taking out in bottom.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic sectional structure of the present invention;

fig. 3 is a schematic structural view of the feeding sheath of the present invention;

in the figure, 1-diversion trench, 2-main pouring gate, 3-first step, 4-secondary pouring gate sheath, 5-second step, 6-molten steel nozzle, 7-blind hole, 8-base body, 9-secondary pouring gate, 401-molten steel injection trench, 402-sheath port, 403-positioning plate, 404-sheath pipe, 601-upper nozzle, 602-nozzle wall, 603-nozzle sheath, 604-lower nozzle.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments, it is to be understood that the specific embodiments described herein are only used for explaining the present invention, and are not used for limiting the present invention.

Referring to fig. 1 and 2, the present invention provides a durable tundish nozzle pocket brick, which comprises a diversion trench 1, a main nozzle 2, a first step 3, a secondary nozzle sheath 4, a second step 5, a molten steel nozzle 6, a blind hole 7, a base body 8 and a secondary nozzle 9, wherein the base body 8 is a main body of the integral device, the diversion trench 1 is arranged at the top of the base body 8, the main nozzle 2 is arranged at the bottom of the diversion trench 1, the main nozzle 2 is arranged to ensure the pouring of most molten steel during pouring, the base body 8 is provided with steps, the first step 3 and the second step 5 are separated, the main nozzle 2 is a through hole structure arranged on the first step 3, the secondary nozzle 9 is arranged at the junction of the first step 3 and the second step 5, the secondary nozzle 9 inclines downwards and the bottom of the secondary nozzle 9 is communicated with the main nozzle 2 to ensure the pouring of molten steel at the main nozzle 2, the pouring of the secondary pouring gate 9 can be realized, the molten steel intersection is realized, the scouring corrosion to the upper nozzle 601 is less when the molten steel enters the upper nozzle 601, the bottom of the base body 8 is provided with an installation hole matched with the molten steel nozzle 6, and the upper nozzle 601 of the molten steel nozzle 6 corresponds to the bottom of the main pouring gate 2.

Referring to fig. 3, preferably, the utility model discloses a time sprue bush 4 includes molten steel injection groove 401, sheath mouth 402, locating plate 403 and protecting pipe 404, time sprue bush 4 with time sprue bush 9 corresponds the setting, time sprue bush 4 top is equipped with molten steel injection groove 401 and locating plate 403, locating plate 403 with the cooperation of first ladder 3 side, molten steel injection groove 401 bottom with the cooperation of second ladder 5 top has increased molten steel injection groove 401, guarantees that the molten steel can not appear splashing and the condition of excessive in carrying out the molten steel pouring in-process, and locating plate 403 has guaranteed various location of time sprue bush 4 when installing, prevents to appear the phenomenon of installation dislocation when the installation.

Referring to fig. 2, in addition, inferior sprue gate sheath 4 with inferior sprue gate 9 is clearance connection, inferior sprue gate sheath 4 is detachable construction, can guarantee like this to have produced behind too much slag in the pouring process, can demolish inferior sprue gate sheath 4, demolish the back and all occupy very big advantage in the aspect of wasing or changing, has increased productivity.

Referring to fig. 1, it is further that inferior sprue gate 9 is equipped with threely, and it just is 120 degrees distributions each other to be between inferior sprue gate 9 at same height, sets up like this, can utilize the kinetic energy of the flow of the inside molten steel of inferior sprue gate 9 as far as, offsets the kinetic energy of the molten steel in main sprue gate 2, is favorable to reducing the washing away to the mouth of a river.

Referring to fig. 2, better, the utility model discloses a pouring subassembly includes mouth of a river 601, mouth of a river wall 602, mouth of a river sheath 603 and lower mouth of a river 604, and base structure's setting has protected mouth of a river sheath 603 in the at utmost, avoids appearing the erosion and corrosion.

Further, main sprue gate 2 is the bell mouth, and its top is equipped with guiding gutter 1. The diameter of the bottom of the main pouring gate 2 is slightly smaller than that of the upper nozzle 601, so that molten steel can be prevented from splashing outside in the pouring process, on one hand, the diameter of the bottom of the main pouring gate 2 is slightly smaller than that of the upper nozzle 601, direct washing of the nozzle sheath 603 can be prevented, and the nozzle sheath 603 is effectively protected.

To sum up the utility model provides a durable tundish nozzle pocket brick, include: the base body is of a two-layer ladder structure, a main pouring gate is arranged at the top of the first ladder and is responsible for pouring most of molten steel, the pouring process of pouring is guaranteed, a secondary pouring gate is arranged at the junction of the first ladder and the second ladder, the molten steel is added into the secondary pouring gate in the pouring process of the main pouring gate, so that the molten steel of the pouring gate forms an intersection process in the inner part, the two downward scouring forces can be offset and weakened by virtue of the scouring effect of the molten steel in the intersection process, the action of scouring force of the upper nozzle is reduced, the secondary pouring gate inclines downwards, the bottom of the secondary pouring gate is communicated with the main pouring gate, the bottom of the base body is provided with a mounting hole matched with the molten steel nozzle, the upper nozzle of the molten steel nozzle corresponds to the bottom of the main pouring gate, and therefore, the molten steel can completely enter the upper nozzle during the pouring of the molten steel, preventing the occurrence of more residues. Inferior sprue gate sheath, its with inferior sprue gate corresponds the setting, through setting up the water conservancy diversion effect when the sheath guarantees the molten steel pouring, prevents remaining of residue simultaneously after the pouring, leads to inferior sprue gate blocking phenomenon to appear, the sheath top is equipped with molten steel injection groove and locating plate, the locating plate with first step side cooperation, molten steel injection groove bottom with the cooperation of second step top guarantees the location effect of sheath, prevents to appear running through the unable problem of taking out in bottom.

Naturally, the present invention can be embodied in many other forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be made by one skilled in the art without departing from the spirit or essential attributes thereof, and it is intended that all such changes and modifications be considered as within the scope of the appended claims.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being 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", etc. 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," "second," etc. 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 otherwise specified.

Claims

1. A durable tundish nozzle pocket block comprising:

the base body is of a two-layer ladder structure and comprises a first ladder and a second ladder, a main pouring gate is arranged at the top of the first ladder, a secondary pouring gate is arranged at the junction of the first ladder and the second ladder, the secondary pouring gate inclines downwards, the bottom of the secondary pouring gate is communicated with the main pouring gate, an installation hole matched with a molten steel nozzle is formed in the bottom of the base body, and an upper nozzle of the molten steel nozzle corresponds to the bottom of the main pouring gate;

and the secondary pouring gate sheath is arranged corresponding to the secondary pouring gate, a molten steel injection groove and a positioning plate are arranged at the top of the sheath, the positioning plate is matched with the side surface of the first step, and the bottom of the molten steel injection groove is matched with the top of the second step.

2. The durable tundish nozzle pocket block of claim 1, wherein the secondary nozzle sheath is in a clearance connection with the secondary nozzle and the secondary nozzle sheath is a removable structure.

3. The durable tundish nozzle pocket block of claim 1, wherein the base is cylindrical and the number of secondary nozzles is three, the secondary nozzles being at the same height and 120 degrees from each other.

4. The durable tundish nozzle pocket block of claim 1, wherein the primary nozzle is a tapered bore with a chamfer on the top.

5. The durable tundish nozzle pocket block of claim 1, wherein the main nozzle bottom diameter is slightly smaller than the top nozzle diameter.