CN211814524U

CN211814524U - Liquid high-temperature molten slag granulation box

Info

Publication number: CN211814524U
Application number: CN202020286468.2U
Authority: CN
Inventors: 袁晓义
Original assignee: Chongqing Iron and Steel Co Ltd
Current assignee: Chongqing Iron and Steel Co Ltd
Priority date: 2020-03-10
Filing date: 2020-03-10
Publication date: 2020-10-30
Anticipated expiration: 2030-03-10

Abstract

The utility model provides a liquid high temperature slag pelletization case, the power distribution box comprises a box body, be provided with on the back plate of box and be used for the first takeover of being connected with external pipeline, be provided with bar hole and a plurality of circular port on the front bezel of box, be provided with the second on the bottom plate of box and take over, the end connection that the second was taken over has and is used for discharging the pipe in the water of surplus water in the box, be provided with the third on the left side board of box or the right side board and take over, the end connection that the third was taken over has and is used for taking out the blind plate of deposit in the box. The utility model discloses can realize the granulation to liquid high temperature slag, can reduce spare part and cost of overhaul, reduce the manufacturing degree of difficulty, shorten the repair time, and handle simply, do not influence production, the effect of granulating is better.

Description

Liquid high-temperature molten slag granulation box

Technical Field

The utility model belongs to the technical field of blast furnace slag treatment equipment, in particular to a liquid high-temperature slag granulation box.

Background

In the iron-making production of the metallurgical industry, a blast furnace smelts iron ore, coke and the like through the wind temperature of about 1300 ℃ to obtain a main product which is pig iron, and a byproduct which is mainly blast furnace slag accounts for about 40 percent. The method is characterized in that granulated slag (a first-class raw material for processing cement) of a product obtained by crushing high-temperature liquid blast furnace slag through a granulating wheel and rapidly quenching and cooling is the most main method for processing blast furnace slag in China at present.

In the process of treating the blast furnace slag, liquid high-temperature slag flowing out of an iron notch flows into a slag flushing channel along a high-temperature slag channel, is broken up by a rotary granulating wheel arranged at the lower part of the head of the high-temperature slag channel, is quenched and cooled by slag flushing water sprayed by an upper box body at the upper part and a lower box body at the lower part of the head of the high-temperature slag channel to form a slag-water mixture, and the slag-water mixture is conveyed to a dehydrator along the slag flushing channel by virtue of kinetic energy of the slag flushing water to separate slag and water. The slag sluiceway is a groove-shaped device, plays a role in water quenching and granulating blast furnace slag and conveying slag-water mixture, and water sprayed out of the upper box body and the lower box body is provided by a slag slurry pump and can be recycled. However, in the method of granulating slag by using the granulating wheel, the manufacturing cost of the granulating wheel is high, the manufacturing difficulty is high, the maintenance and replacement are difficult, the maintenance cost is high, and the production time is influenced.

SUMMERY OF THE UTILITY MODEL

In view of the above shortcomings of the prior art, an object of the present invention is to provide a liquid high temperature slag granulating tank for solving the problems of high manufacturing cost, large manufacturing difficulty, difficult maintenance and replacement, high cost and long production time influence of granulating wheels in the prior art.

In order to realize above-mentioned purpose and other relevant mesh, the utility model provides a liquid high temperature slag pelletization case, the power distribution box comprises a box body, be provided with on the back plate of box and be used for the first takeover with external pipe connection, be provided with bar hole and a plurality of circular port on the front bezel of box, be provided with the second on the bottom plate of box and take over, the end connection that the second was taken over has and is used for discharging the pipe in the water of surplus water in the box, be provided with the third on the left side board or the right side board of box and take over, the end connection that the third was taken over is used for taking out the blind plate of deposit in the box.

Furthermore, the end part of the first connecting pipe is welded with a first flange, and the first connecting pipe is connected with the external pipeline through the first flange.

Further, a ball valve is further arranged between the second connecting pipe and the downpipe, ball valve flanges are arranged at two ends of the ball valve, and the ball valve is respectively connected with the second connecting pipe and the downpipe through the ball valve flanges.

Furthermore, a third flange is welded at the end part of the third connecting pipe, and the third connecting pipe is connected with the blind plate through the third flange.

Furthermore, the box body is in a reversed bucket shape.

Furthermore, the front plate of the box body is obliquely arranged with the horizontal plane.

Further, the bar hole includes vertical bar hole and horizontal bar hole, the upper portion symmetry of front bezel is provided with two vertical bar hole, the bottom symmetry of front bezel is provided with two horizontal bar hole, and is a plurality of the circular port is located two vertical bar hole and two between the horizontal bar hole.

Further, a plurality of the circular holes are arranged in an inverted trapezoid on the front plate, and a plurality of the circular holes are arranged at a set interval.

Further, the width of the strip-shaped hole is equal to the diameter of the circular hole.

Furthermore, the circular holes and the strip-shaped holes are made of ceramic or spraying alloy.

As mentioned above, the utility model discloses a liquid high temperature slag granulation case has following beneficial effect:

after the granulating water delivered from the slag slurry pump enters the box body, the granulating water is flushed out through the circular holes and the strip-shaped holes arranged on the front plate of the box body, and the slag flowing down from the ditch head of the high-temperature slag ditch can be crushed and quenched by water, so that the aim of granulating the slag is fulfilled. The liquid high-temperature molten slag granulation box can reduce spare parts and maintenance cost, reduce manufacturing difficulty, shorten maintenance time, is simple to treat, does not influence production, and has a better granulation effect.

Drawings

FIG. 1 is a front view of a liquid high-temperature slag granulation tank according to the present invention;

FIG. 2 is a left side view of FIG. 1;

fig. 3 is a view taken along direction a in fig. 1.

Description of reference numerals

1-a box body; 11-a front plate; 111-bar shaped holes; 111 a-longitudinal strip aperture; 111 b-transverse strip-shaped holes; 112-circular hole; 12-a base plate; 13-a back plate; 14-left side panel; 15-right side plate; 2-a first adapter tube; 21-a first flange; 3-a second adapter tube; 31-a second flange; 4-a ball valve; 41-ball valve flange; 5-a downpipe; 51-downpipe flange; 6-third connecting pipe; 61-a third flange; 7-blind plate.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

Fig. 1 is the utility model provides a pair of structure front view of liquid high temperature slag granulation case, fig. 2 is the left side view of fig. 1, fig. 3 is the A in fig. 1 to the view, please combine fig. 1 to 3 to show, the utility model provides a liquid high temperature slag granulation case, including box 1, be provided with on the back plate 13 of box 1 and be used for taking over 2 with external pipe connection's first takeover, be provided with bar hole 111 and a plurality of circular port 112 on the front bezel 11 of box 1, be provided with second takeover 3 on the bottom plate 12 of box 1, the end connection that 3 was taken over to the second has the pipe 5 that falls that is used for discharging surplus water in the box 1, be provided with third takeover 6 on the left side board 14 or the right side board 15 of box 1, the end connection that 6 was taken over to the third has the blind plate 7 that is used for taking out deposit in the box 1.

The granulating water delivered from the slurry pump of the pump room enters the first connecting pipe 2 through an external pipeline, then is delivered into the box body 1 through the first connecting pipe 2, the granulating water delivered into the box body 1 is flushed out through the circular holes 112 and the strip-shaped holes 111 on the front plate 11, and liquid high-temperature molten slag flowing down from the groove head of the high-temperature molten slag groove is crushed and quenched with water, so that the purpose of slag granulation is realized.

The first connecting pipe 2 is welded with a rear plate 13 of the box body 1, a first flange 21 is welded at the end of the first connecting pipe 2, and the first connecting pipe 2 is connected with the external pipeline through the first flange 21. Or, the first flange 21 is not needed, and the first connecting pipe 2 can be directly welded with an external pipeline on the slurry pump.

The second connecting pipe 3 is welded to the bottom plate 12 of the box body 1, a ball valve 4 is further arranged between the second connecting pipe 3 and the downpipe 5, ball valve flanges 41 are arranged at two ends of the ball valve 4, and the ball valve 4 is respectively connected with the second connecting pipe 3 and the downpipe 5 through the ball valve flanges 41. Specifically, a second flange 31 is welded at one end of the second connecting pipe 3 connected with the ball valve 4, a downpipe flange 51 is welded at one end of the downpipe 5 connected with the ball valve 4, and the ball valve flanges 41 at the two ends of the ball valve 4 are respectively connected with the second flange 31 and the downpipe flange 51 through bolts. When the residual water in the box body 1 needs to be discharged, the ball valve 4 can be opened, so that the granulated water in the box body 1 can be discharged through the second connecting pipe 3 and the downpipe 5.

The third connecting pipe 6 is welded with the left side plate 14 or the right side plate 15 of the box body 1, a third flange 61 is welded at the end part of the third connecting pipe 6, and the third connecting pipe 6 is connected with the blind plate 7 through the third flange 61. In particular, the third flange 61 may be connected to the blind plate 7 by bolts. The blind 7 may be profiled to match the shape of the third flange 61. When the circular hole 112 and the strip-shaped hole 111 on the front plate 11 are blocked, the ball valve 4 can be opened to discharge the residual water in the box body 1, then the blind plate 7 is opened, and the sediment in the box body 1 is taken out by a special tool.

In order to make the granulated water flow out smoothly, the tank 1 is in an inverted bucket shape. Wherein, the front plate 11 of the box body 1 is obliquely arranged with the horizontal plane to ensure that the granulating water punched from the circular holes 112 and the strip-shaped holes 111 is basically parallel to the bottom surface of the slag flushing ditch, thereby being beneficial to flushing slag. In this embodiment, the included angle α between the front plate 11 and the horizontal plane is 75 °, and in other embodiments, the included angle α may be changed according to actual requirements.

Referring to fig. 3, the strip-shaped hole 111 includes a longitudinal strip-shaped hole 111a and a transverse strip-shaped hole 111b, the upper symmetry of the front plate 11 is provided with two longitudinal strip-shaped holes 111a, the bottom symmetry of the front plate 11 is provided with two transverse strip-shaped holes 111b, a plurality of the circular holes 112 are located in two longitudinal strip-shaped holes 111a and two between the transverse strip-shaped holes 111 b. The two transverse strip-shaped holes 111b mainly play a role in conveying granulated slag, and the two longitudinal strip-shaped holes 111a mainly play a role in cleaning scum on two sides of a slag sluiceway at the front end of the box body 1.

And, a plurality of the circular holes 112 are arranged in an inverted trapezoid shape on the front plate 11, and the plurality of the circular holes 112 are arranged at a set interval, so that the optimum effect of granulating slag can be achieved. In this embodiment, the transverse spacing L1 of the circular holes 112 is 65mm, and the longitudinal spacing L2 is 35 mm. In other embodiments, the set pitch may be changed according to actual requirements.

In addition, the width W of the strip-shaped hole 111 and the diameter of the circular hole 112

Are equal. In this embodiment, the width W of the strip-shaped hole 111 and the diameter of the circular hole 112

Are all 16 mm.

In order to ensure that the circular holes 112 and the strip-shaped holes 111 are durable, the circular holes 112 and the strip-shaped holes 111 are made of wear-resistant materials, and specifically, the circular holes 112 and the strip-shaped holes 111 can be made of ceramics or spray alloy. Moreover, the circular holes 112 and the strip-shaped holes 111 both require machining.

In summary, the embodiment of the utility model provides a in liquid high temperature slag granulation case, after the granulation water that is carried out from the slurry pump gets into the box, through circular port and the bar hole that sets up on the box front bezel rush out, can smash the slag that flows down from the ditch head of high temperature slag ditch and water quench to realize the mesh that the slag was granulated. The liquid high-temperature molten slag granulation box can reduce spare parts and maintenance cost, reduce manufacturing difficulty, shorten maintenance time, is simple to treat, does not influence production, and has a better granulation effect.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a liquid high temperature slag granulation case which characterized in that: the water storage tank comprises a tank body, be provided with on the back plate of box and be used for the first takeover of being connected with external pipeline, be provided with bar hole and a plurality of circular port on the front bezel of box, be provided with the second on the bottom plate of box and take over, the end connection that the second was taken over has and is used for discharging the pipe in the water of surplus water in the box, be provided with the third on the left side board or the right side board of box and take over, the end connection that the third was taken over has and is used for taking out the blind plate of deposit in the box.

2. The liquid high-temperature slag granulation tank as claimed in claim 1, wherein: the end part of the first connecting pipe is welded with a first flange, and the first connecting pipe is connected with the external pipeline through the first flange.

3. The liquid high-temperature slag granulation tank as claimed in claim 1, wherein: and a ball valve is further arranged between the second connecting pipe and the downpipe, ball valve flanges are arranged at two ends of the ball valve, and the ball valve is respectively connected with the second connecting pipe and the downpipe through the ball valve flanges.

4. The liquid high-temperature slag granulation tank as claimed in claim 1, wherein: and a third flange is welded at the end part of the third connecting pipe, and the third connecting pipe is connected with the blind plate through the third flange.

5. The liquid high-temperature slag granulation tank as claimed in claim 1, wherein: the box body is in a reversed hopper shape.

6. The liquid high temperature slag granulation tank as claimed in claim 5, wherein: the front plate of the box body is obliquely arranged with the horizontal plane.

7. The liquid high-temperature slag granulation tank as claimed in claim 1, wherein: the bar hole is including vertical bar hole and horizontal bar hole, the upper portion symmetry of front bezel is provided with two vertical bar hole, the bottom symmetry of front bezel is provided with two horizontal bar hole, a plurality of the circular port is located two vertical bar hole and two between the horizontal bar hole.

8. The liquid high temperature slag granulation tank as claimed in claim 7, wherein: a plurality of the circular holes are arranged in an inverted trapezoid on the front plate, and a plurality of the circular holes are arranged at a set interval.

9. The liquid high-temperature slag granulation tank as claimed in claim 1, wherein: the width of the strip-shaped hole is equal to the diameter of the circular hole.

10. The liquid high-temperature slag granulation tank as claimed in claim 1, wherein: the circular holes and the strip-shaped holes are made of ceramic or spraying alloy.