KR100905592B1 - An apparatus for jetting cooling water capable of adjusting injection pressure - Google Patents

Abstract

It is used to re-water the slag (SLAG), one of the melts produced in the blast furnace, and a cooling water injector is provided which can control the cooling water injection pressure.

Cooling water injector capable of adjusting the injection force, the cooling water supply pipe is connected, one side is an opening body; and the upper, lower and center side nozzle head is fixed to the upper, lower and center respectively through the body opening body A first nozzle head provided in multiple stages and having a plurality of first nozzle holes formed integrally therewith; And an upper and lower nozzle head inserted between the upper, lower and center nozzle heads of the first nozzle head to be movable to form a spray nozzle for spraying coolant in cooperation with the first nozzle. Including a second nozzle head having a plurality of second nozzle holes formed integrally, the cooling water injection pressure through the injection nozzle is configured to be adjusted in accordance with the movement of the second nozzle head.

According to the present invention, it is possible to adjust the injection pressure of the cooling water sprayed from the injector installed in the lower portion of the container in accordance with the discharge amount of the slag to provide an effect of improving the quality of the water produced by injecting the cooling water to the slag do.

Blast furnace, blast furnace melt, slag, slag goods, coolant spray

Description

Coolant jetting device with adjustable injection force {AN APPARATUS FOR JETTING COOLING WATER CAPABLE OF ADJUSTING INJECTION PRESSURE}             

1 is a perspective view showing a main part of the cooling water injection device used in the conventional embodiment for producing slag produced in the blast furnace operation as a handmade product

Figure 2 is a schematic diagram showing an installation state of the coolant injection device used in FIG.

Figure 3 is a perspective view showing the main portion showing an embodiment of using the cooling water jetting apparatus capable of adjusting the injection force according to the present invention for the production of slag wood products

Figure 4 shows the present invention, the cooling water injector capable of adjusting the injection force,

(a) is a perspective view showing the state before the movement of the second nozzle head

(b) is a perspective view showing the injection pressure adjustment state according to the movement of the second nozzle head

5 is a view showing a cooling water injector capable of adjusting the injection force of the present invention,

(a) is an exploded perspective view

(b) is a partial cutaway perspective view of the assembled state                 

Figure 6 is an exploded perspective view showing the sealing means in the present invention injection force adjustable cooling water injector

7 is a view showing a jetting force control state in the present invention, the jetting force adjustable cooling water injector,

(a) is a side view showing the spraying operation when the second nozzle head is in the initial position;

(b) is a side structural view showing a state where the injection pressure is increased by the movement of the second nozzle head;

8 is a view showing the operating state of the sealing means in the cooling water injector capable of adjusting the injection force of the present invention,

(a) is a perspective view of main parts showing an operating state according to FIG. 7a

(b) is a perspective view of the main portion showing the operating state according to Figure 7b

Explanation of symbols on the main parts of the drawings

1 .... Chilled water injector 10 .... Body

12 .... Opening 20 .... Spray nozzle

30,50 .... 1st, 2nd nozzle head 32,52 .... 1st, 2nd nozzle port

54 .... Cylinder 56 .... Second nozzle head extension

58 .... Fixed arm 70 .... Sealing means

72 .. Body seating 74 .... Spring

76 .... Sealing block 78 .... Moving arm                 

80 .... Injection pressure sensor

The present invention relates to a cooling water injector used to produce slag (SLAG), which is one of the melts discharged from the blast furnace, as a product, and more specifically, the injection pressure of the cooling water of the injector installed under the container. The present invention relates to a cooling water injector capable of adjusting the spraying force so that it can be variably adjusted according to the amount of slag discharged to improve the quality of the product produced by injecting the cooling water into the slag.

1 and 2 illustrate a process for producing slag, which is one of the melts produced during the blast furnace operation of a steel mill, as a handmade product. In such a manufactured product manufacturing process, discharged from the exit of the blast furnace 100 is shown. Melt, that is, molten iron and slag (SLAG) is separated from each other by the specific gravity difference in the skimmer 120 of the large bathway 110, the molten iron is moved to the molten iron raceway 140 via the molten iron bath 130, the slag slag The fluid container 160 is reached via the flow path 150.

At this time, in the slag (S) falling through the falling ball 162 of the barrel 160, a coolant spray (SPRAY BOX) formed with a plurality of coolant spray holes 210 provided in the lower portion of the barrel 160 ( The high pressure cooling water supplied from the cooling water pump (PUMP) and the supply pipe 202 of 200 is injected through the cooling water injection holes 210, and the injected cooling water is formed into granulated particles by granulating the slag (S). As shown in FIG. 2, the slag material mixed with the cooling water is collected and eroded by the stirring vessel 220.

Next, the slag material in the stirring tank 220 is transferred to the screw conveyor 230 and the conveyor belt 240 is stored in the water storage tank 250, and is carried out in a later process, the cooling water used is recovered and circulated equipment Through 260 is repeatedly supplied to the injector 200 of the lower cylinder 160.

By the way, since the opening area of the blast furnace 100 exit area is small in the initial stage of discharging the melt from the exit port during the slag production process of the slag, the amount of slag discharge is small, but gradually if the opening area of the blast furnace opening area is gradually expanded. In addition, the discharge of the slag is also increased, in view of this, as shown in FIGS. 1 and 2, initially, only one pump 262 is operated in the coolant recovery and circulation facility 260 to inject the coolant into the injector 200. When the supply of slag (S) is increased while supplying the amount of slag (S) falling from the container 160 to increase the amount of cooling water to the injector 200 by operating the remaining pump 262 at the same time .

In this case, in order to produce the best quality water, the ratio of the slag (S) and the cooling water sprayed is 1: 8, and the pressure of the cooling water sprayed at the same time is known to be 1.2 Kg / cm 2 most appropriate.

On the other hand, as shown in Figures 1 and 2, in the initial stage of starting the slag by starting the one coolant pump 262 with the injector 200 is installed in the lower cylinder 160, the cooling power of 24m² / min and 1.2Kg / When slag is granulated at an injection pressure of cm 2 and the slag discharge is increased over time, the remaining pump 264 is operated to increase the cooling power to 48 m 2 / min. This increase is natural.

Therefore, in order to produce high quality handmade products, an injection pressure of 1.2 Kg / cm 2 is appropriate. In the related art, the injection pressure increases more than necessary because the injection pressure is adjusted to the cooling power of the injector 200. In order to prevent the coolant from being injected into the slag S in which the coolant falls, the fine particles that are not completely granulated are produced by manual operation of the pumps 262 and 264 which supply the coolant to the injector 200. It is a cumbersome task to switch.

Accordingly, in the conventional coolant injector for producing slag resin products, that is, the injector 200, since the injection pressure thereof cannot be adjusted by itself, the operator manually adjusts the operation of the pumps 262 and 264. It requires cumbersome work, and in this case, it is difficult to keep the injection pressure of the coolant constantly constant, so that the excessive pressure of the coolant is injected into the slag (S) to produce the granulated product which does not granulate the slag. There was a problem.

In addition, such fine resin blocks the piping facilities or is fixed in them, which does not supply smoothly, and causes equipment troubles such as pumps. When the spray pressure of the coolant is adjusted during manual operation of the pump, the coolant spraying ability decreases. Will cause other problems.

The present invention has been made in order to improve the various problems as described above, the object of the present invention, by adjusting the pressure of the cooling water is automatically injected in accordance with the amount of slag discharged from the blast furnace during the production of the slag reinforcement product, constant water particle size It is to provide a cooling water injector capable of adjusting the injection force that can be sized in size to facilitate the production of high-quality water.

The present invention as a technical configuration for achieving the above object, the cooling water supply pipe is connected, one side of the opening body;
A first nozzle head having a plurality of first nozzle holes which are provided in a plurality of stages and are integrally formed in an inner side of the body, the nozzle head being configured to be respectively fixed to the upper, lower and center sides through the body opening; ; And,
It consists of upper and lower nozzle heads which are inserted between the upper, lower and center nozzle heads of the first nozzle head to be movable, and form a spray nozzle for injecting cooling water in cooperation with the first nozzle port. A second nozzle head having a plurality of second nozzle holes formed into;
By providing a cooling water injector capable of adjusting the injection force configured to adjust the cooling water injection pressure through the injection nozzle in accordance with the movement of the second nozzle head.

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Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is a perspective view of the main part showing a state using a cooling water injector capable of adjusting the spraying force according to the present invention for slag rehydration, Figure 4 is an assembled state diagram showing a cooling water injector capable of adjusting the injection force, Figure 5 Figure 6 is a view showing a cooling water injector capable of adjusting the injection force, Figure 6 is an exploded perspective view showing the sealing means in the cooling water injector capable of adjusting the injection force, Figure 7 shows the injection force control state in the cooling water injector capable of adjusting the injection force 8 is a view showing an operating state of the sealing means in the cooling water injection apparatus capable of adjusting the injection force, the same configuration as the conventional configuration is indicated by the same reference numerals.

Figure 3 shows the state of use of the cooling water injector (1) capable of adjusting the injection force of the present invention, such a cooling water injector (1) of the present invention is large body 10 and the first and second nozzle head (30) It can be divided as 50, these components 10, 30, 50 will be described in detail as follows.

First, as shown in Figure 3, looking at the installation position of the coolant injection device 1 of the present invention, the slag (S) is disposed in the lower portion of the falling cylinder 160, as in the prior art, two pumps 262 264 is connected to the supply pipe 202 for supplying the cooling water.

Next, FIG. 4 and FIG. 5 show the body 10 of the present invention's cooling water injector 1, wherein the body 10 of the present invention has the cooling water supply pipe 202 connected to a lower portion thereof. The body 10 of the present invention is manufactured in a rectangular box shape.

In this case, as shown in FIG. 5, the body 10 has an opening 12 completely formed in a quadrangular shape, and both side wall portions of the body 10 have a second nozzle head (described below). An opening 14 through which the extension part 56 of 50 passes is integrally formed, and the seating opening 72 in which the sealing means 70 described below is integrally formed in the both side wall openings 14 is integrally formed. As shown in FIG. 6, the seat 72 is recessed and formed in the opening side wall portion of the body 10.

Next, FIG. 4, FIG. 5 and FIG. 7 show the first nozzle head 30 of the cooling water injector 1 capable of adjusting the injection force of the present invention. The first nozzle head 30 of the present invention is Second nozzle head 50 which will be described later with a spray nozzle 20 which is fixed in multiple stages therein through the front opening 12 of the body 10 and is sprayed at a constant pressure while substantially passing through the cooling water. A plurality of first nozzle holes 32 are formed integrally to form in cooperation with the nozzle hole 52 of the.

That is, as shown in Figures 4 and 5, the first nozzle head 30, the upper, lower and center side is fixed to the upper, lower and center respectively through the opening 12 of the body 10 The nozzle heads 30a, 30c, and 30b are divided into upper and lower first nozzle heads 30a and 30c. The upper and lower surfaces of the upper and lower surfaces are formed in a plane to form an opening 12 of the box 10. The central nozzle of the first nozzle head 30b has an elongated triangular pyramid shape formed in a triangular shape so as to smoothly flow the cooling water, as shown in FIG. 5.                     

At this time, the lower and upper sides of the upper and lower first nozzle heads 30a and 30c cooperate with the second nozzle holes 52 of the second nozzle head 50 to be described later to substantially spray coolant. The first nozzle holes 32 for forming the injection nozzle 20 are integrally formed sequentially in the longitudinal direction thereof, and likewise, the first nozzle head 30b on the center side has the first nozzle above and below the front surface. Sphere 32 is formed integrally, the first nozzle sphere 32 is shown in Figs. 5 and 7, upper and lower surfaces of the front of each nozzle head (30a) 30b (30c) It is integrally processed and formed.

Next, FIG. 4, FIG. 5 and FIG. 7 show the said 2nd nozzle head 50 of the coolant injection device 1 which is this invention, The 2nd nozzle head 50 of this invention is the said 1st A plurality of second to be movable between the nozzle head 30, and formed integrally to form the injection nozzle 20 in cooperation with the first nozzle port 32 of the first nozzle head (30) The nozzle holes 52 are provided.

That is, the cooling water injector 1 capable of adjusting the spraying force of the present invention is sprayed when the first nozzle head 30 and the second nozzle head 50 operate in accordance with the movement of the second nozzle head 50. It is to adjust the injection pressure of the cooling water sprayed through the nozzle 20.

In this case, as shown in FIGS. 5 and 7, the second nozzle heads 50 are respectively inserted through the openings 12 of the body 10 between the respective first nozzle heads 30. The nozzle nozzles 50 of the second nozzle head 50 may be divided into upper and lower nozzle heads 50a and 50b, and the upper and lower surfaces of the nozzle nozzles 50 may extend in the longitudinal direction of the second nozzle head 50. The injection nozzle 20 which is processed and integrally formed to protrude and eventually enables the injection of substantial cooling water is formed in the first and second nozzle holes of the concave and protruding first and second nozzle heads 30 and 50. It is formed by cooperation between 32 and 52.

In addition, the second nozzle head 50 is formed in a triangular shape in the side cross-section, as shown in Figure 7a, the second nozzle head 50 is located in the same line on the front of the body 10 Since the cooling water is injected to the maximum through the injection nozzles 20 implemented by the first and second nozzle holes 32 and 52, the injection pressure is lowered, and as shown in FIG. 7B, the second nozzle head ( At a position where 50 moves between the first nozzle heads 30 inside the body, the coolant is sprayed to the minimum through the injection nozzles 20 formed by the first and second nozzle holes 32 and 52 in cooperation. Therefore, the injection pressure is increased, and thus the cooling water injection pressure can be adjusted according to the moving width of the second nozzle head 50. The standard is 1.2 Kg / cm 2, which is an appropriate cooling water injection pressure in slag production.

As shown in FIG. 7, the first and second nozzle holes 32 and 52 of the first and second nozzle heads 30 and 50 are cooled even when the second nozzle head 50 moves. It is formed in a curved surface so that the passage amount of is increased or decreased at the same ratio.

On the other hand, as shown in Figs. 4 and 5, the both ends of the second nozzle head 50, the extension portion 56 to which the moving arm 76 of the sealing means 70 will be described later is integrally integrated. Is formed, the extension 56 of the second nozzle head 50 is inserted through the openings 14 formed on both side walls of the body (10).                     

At this time, the cooling water injector (1) of the injection force controllable of the present invention is further provided with a sealing means 70 for preventing the cooling water leakage between the movable second nozzle head 50 and the body (10). do.

That is, as shown in Figures 4 and 6, the sealing means 70, the sealing block 76 is inserted into the seating hole 72 formed in the body 10 via a spring 74 and the A moving arm 78 is inserted into the opening 76a formed in the sealing block 76 and is connected to the extension portion 56 on both sides of the second nozzle head 50.

At this time, the movable arm 78 is inserted into and fixed to the opening 76a of the sealing block 76, and the movable arm 78 is connected to the extension 56 of the second nozzle head 50. When the second nozzle head 50 moves by the operation of the cylinder 54, the sealing block 76 moves integrally to prevent the cooling water from leaking to the outside. As shown in FIG. When the nozzle head 50 moves to the inside of the body as much as possible, the sealing block 76 compresses the spring 74 in the body seat 72.

Therefore, when the second nozzle head 50 moves to the outside of the body, the spring 74 is returned and the sealing block 76 maintains a portion of the sealing block 76 inserted into the seat 72 of the body 10. Will move.

Next, as shown in FIG. 4, the cylinder 54 is horizontally integrally fixed to the outer side of both side walls of the body 10, and the rod 54a of the cylinder 54 is formed of the upper and lower agents. It is connected to a fixed arm 58 that is vertically connected between the extension portions 56 of the two nozzle heads 50a and 50b, so that the second nozzle heads 50 are formed in accordance with the operation of the cylinder 54. The nozzle head 30 is moved to adjust the injection pressure of the cooling water.

On the other hand, as shown in Figure 7a, it is preferable that the upper portion of the body 10 of the present invention cooling water injector 1 is disposed in the lower cylinder 160 as shown in Figure 3 through a separate support block 16. However, it forms grooves 82 and 84 in the body 10 and the upper first nozzle head 30a, respectively, inserts the injection pressure sensor 80 into the inside thereof, and supports the support block 16. The cable (not shown) is drawn out to the outside while protecting it, and the detector 80 is configured to be electrically connected to the controller C electrically connected to the cylinders 54 as shown in FIG. 3. Lose.

Referring to the operation of the present invention made in the above configuration in detail as follows.

As shown in Figure 3 to 8, the injection pressure of the cooling water injected from the injection device installed in the lower cylinder 160 can be adjusted in accordance with the discharge amount of the slag of the water produced by injecting the cooling water to the slag Cooling water injector (1) capable of adjusting the spraying force of the present invention to improve the quality is as follows, the cooling water injector capable of adjusting the spraying power is the other arbitrary that needs to adjust the spraying pressure of the cooling water to the environment Of course, it can also be used in equipment.

First, as shown in FIGS. 1 and 3, when the slag S is initially discharged from the blast furnace 100 and falls from the molten metal cylinder 160, only one pump 262 is operated to operate the feed pipe 202. Cooling water is supplied to the body 10 of the present invention cooling water injector (1).                     

Therefore, the coolant supplied in the body 10 is the first and second nozzle heads 30 at the initial position where the second nozzle head 50 is located in the same line as the front surface of the body, as shown in FIGS. 4A and 7A. It is injected to the slag (S) falling through the injection nozzle 20 formed between the first and second nozzle holes 32, 52 formed integrally in the longitudinal direction of the (50).

At this time, the coolant injection pressure injected through the injection nozzle 20 is detected through the injection pressure sensor 80, as shown in Figure 7a, if the detected injection pressure of the coolant is less than 1.2Kg / ㎠ As shown in FIG. 3, the controller C electrically connected to the detector 80 automatically operates the cylinder 54 to move the second nozzle head 50 inside the body.

Therefore, the detector 80 continuously detects the injection pressure, and according to the movement of the second row head 50, the first and second nozzle holes of the first and second nozzle heads 30 and 50 ( When the injection nozzle 20 formed between 32) and 52 is narrowed and the injection pressure of the coolant injected through this reaches 1.2Kg / cm <2>, the cylinder 54 stops its operation as a controller C. Although not shown in detail in the drawings, the controller C is electrically connected to an electric operation valve on the hydraulic unit side for driving the cylinder 54 to control the cylinder.

6 and 8, the movable arm 78 connected to the extension part 56 of the second nozzle head 50 above and below the fixed arm 58 connected to the cylinder 54 has a body. Since the sealing block 76 is inserted into the opening 76a of the sealing block 76 of the sealing means 70 inserted into the seating hole 72 of the 10, the sealing block 76 is also moved when the second nozzle head 50 is moved. It moves in a state inserted into the seat 12 integrally to block the external leakage of the coolant.

Next, when the amount of slag (S) discharged from the blast furnace increases, the operator operates the remaining pump 264 shown in Figure 3 to tighten through the supply pipe 202 connected to the body 10 to supply a large amount of cooling water do.

Therefore, when more coolant is supplied into the body 10, the spray pressure of the coolant injected through the spray nozzle 20, which was kept constant, rises above 1.2 Kg / cm &lt; 2 &gt;, the reference value, so that the detector 80 cools the coolant. When the pressure is sensed, the cylinder 54 is moved forward or backward through the controller C to adjust the amount of coolant injected through the injection nozzle 20, thereby adjusting the injection pressure of the coolant to a reference value. When the amount of cooling water is increased, the second nozzle head 50 is advanced to enlarge the width of the injection nozzle 20, thereby controlling the injection pressure.

That is, as shown in FIG. 7, the first nozzle heads 30 are fixed and cooperate with the concave first nozzle hole 32 while the first nozzle hole 32 formed thereon is fixed. The second nozzle port 52 of the second nozzle head 50 forming the spray nozzle 20 gradually decreases the passage amount of cooling water of the spray nozzle 20 when the second nozzle head 50 moves inside the body. By reducing the width of the injection nozzle 20, as shown in FIG. 7B, the injection pressure of the cooling water is adjusted. As the width of the injection nozzle 20 decreases, the injection pressure of the cooling water will increase.

Accordingly, according to the present invention, the cooling water injector (1) capable of adjusting the injection force, according to the cooling water supply amount in accordance with the most suitable cooling water injection pressure 1.2Kg / ㎠ when the cool water is injected into the slag and atomized It can be adjusted to produce higher quality slag material.

As described above, according to the present invention, the cooling water injector capable of adjusting the spraying force automatically cools the injector to inject the coolant into the slag falling from the molten metal in the process of producing slag produced in the blast furnace by the amount of slag. By adjusting to, it is possible to prevent the injection of the slag at an excessive pressure to minimize the occurrence of the fine particles of the slag is not granulated to provide an excellent effect to further improve the quality of the wood.

In addition, by preventing the generation of particulates that can not be granulated, it is possible to prevent the particulates from blocking the equipment such as pipes, and to obtain an additional effect of improving the overall utilization rate of the production facilities.

While the invention has been shown and described with respect to specific embodiments thereof, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit or scope of the invention as set forth in the claims below. I would like to know that those who have knowledge of this can easily know.

Claims (6)

Cooling water supply pipe 202 is connected, one side is the opening 12, the body 10; The upper, lower, and center side nozzle heads 30a, 30c, and 30b fixed to the upper, lower, and center, respectively, through the body opening 12, are provided in multiple stages inside the body, and are integrally formed. A first nozzle head 30 having a plurality of first nozzle holes 32; And, And the upper and lower nozzle heads 50a and 50b which are inserted between the upper, lower, and center nozzle heads 30a, 30c, and 30b of the first nozzle head to be movable. A second nozzle head (50) having a plurality of second nozzle holes (52) formed integrally to form a spray nozzle (20) for injecting cooling water in cooperation with the first nozzle (32); Cooling water injection device capable of adjusting the injection force configured to adjust the cooling water injection pressure through the injection nozzle in accordance with the movement of the second nozzle head. 2. The coolant injection of claim 1, further comprising sealing means (70) interposed between the movable second nozzle head (50) and the body (10) to prevent leakage of cooling water. Device. The method of claim 2, wherein the sealing means 70, A sealing block 76 inserted into the seating hole 72 formed in the body 10 via a spring 74; And, Injection arm adjustment, characterized in that consisting of; moving arm 78 is fixed to the opening (76a) formed in the sealing block 76, and connected to both sides extending portion 56 of the second nozzle head (50) Possible coolant injectors. The method of claim 1, wherein the body 10 is formed in a box shape, the front surface is opened, the cooling water supply pipe 202 is connected to the bottom side of the body 10, the first nozzle port 32 is Cooling water jetting apparatus capable of adjusting the injection force, characterized in that the upper, lower and central nozzle heads (30a, 30c, 30b) are integrally processed on the front, bottom of the front. According to claim 1, wherein the nozzle port 52 of the second nozzle head 50 is integrally protruded on the front, upper and lower sides of the upper and lower nozzle heads 50a and 50b of the second nozzle head. Cooling water injector with adjustable injection force. According to claim 3, Both end portions of the second nozzle head 50 is integrally formed with an extension portion 56 to which the moving arm 76 of the sealing means 70 is connected, the body 10 of the The rod 54a of the cylinder 54 horizontally fixed to both side walls is connected to a fixed bar 58 vertically fixed between the second nozzle head extension 56 so that the second nozzle head is removed when the cylinder is operated. Cooling water injector capable of adjusting the spraying force, characterized in that configured to move between the nozzle head before and after.

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