KR910003142Y1 - Inspector for tuyer and cooling hearth of blast furnace - Google Patents

Abstract

No content.

Description

Loss Detector for Blast Furnace & Cooling Panel

1 is a use state of the state in which the hand-damage detector of the present invention is connected to the blast furnace vent and the cooling panel side of the predetermined detection point.

2 is a longitudinal sectional view illustrating the internal structure of the gas separation apparatus in FIG.

FIG. 3 is a longitudinal sectional view of the gas detector of FIG.

* Explanation of symbols for main parts of the drawings

7 connector 8 gas collection container

9 gas collecting container 10 separation device

11: detection device 12: oil pipe

13: flow control valve

The present invention relates to a blast furnace vent and a cooling panel disposed on the furnace wall member side of the furnace to cool hot air in the furnace or to a refractory wall of the furnace. More specifically, the blast furnace vent or the cooling panel is melted in the wall. The present invention relates to a blast furnace and cooling vane hand detector in which a detector in the detection becomes a portable form, and the detection function can be reliably and quickly achieved.

Blast furnace vents and cooling panels in this technical field are, for example, in the form of FIG.

Here, as a side view of the piping and the cooling installation in the furnace body, this is a refractories (4) inside the furnace shell (6) to protect the furnace body, between the copper plate (3) The refractory (4) and the cooling panel (3) maintain a mutual complementary relationship by inserting a plurality of the cooling effect, and the cooling panel protection cylinder (1) ( A water supply and drain pipe (2) is provided to supply cooling water to the housing and the cooling panel (3).

In addition, while the cooling plate 3 is disposed at a relatively high place from the bottom of the furnace body, the air vent is located at the lower side of the cooling plate 3 and has a function of blowing hot air into the blast furnace.

However, since the tuyere and the cooling plate 3 is installed inside the hull shell 6, it is difficult to find the molten iron, which leads to a delay in the discovery of the molten cooling plate (or the tuyere). It was there.

In other words, if the discovery of the cooling plate (or wind) damage is delayed, not only does the blast furnace life be shortened due to the immersion in the blast furnace, but also stable operation is not possible due to deterioration of the rust, resulting in lower production and production. It would have a direct impact on the rise of expenses.

Therefore, in order to extend the life of the blast furnace and stabilize the operation, a means for early detection of the Yongson Cooling Unit (or tuye-gu) was essential.

On the other hand, there are a large number of air vents and cooling panels buried in the furnace body of about 800-2200 pieces, and the low speed piping relationship of the air vents and cooling panels is also very complicated, especially in places where the height is high or the location is narrow. It is common for the points to be concentrated.

Therefore, these tolerances exist as a difficulty in the inspection work for checking the loss of the tuyere and the cooling plate.

In addition, there is a problem that the inspector cannot stay for a long time because the working environment is bad because of high heat, dust, and carbon monoxide. It is required to be able to check immediately, so it should be compact and lightweight. On the other hand, the prior art known in this technique has been known to determine the gas detection zone in accordance with the pressure test method and the degree of carbon monoxide content of the cooling panel, or the wind hole in accordance with the cooling water pressure fluctuation in general. However, in the former case, problems such as plumbing pipes, leakage of connection parts, and work complexity existed. In the latter case, since the inspection point is a carbon monoxide leak zone, the proper installation and operation method of the device Problems, lack of reliability of the test results, and misjudgement were not desirable.

For example, Korean Utility Model Registration No. 19012, Fenggu and Cooling Van Hand Identification Gas Collector (Korea Utility Publication No. 466, Notification No. 80-1656) is designed by the gas detection method of the latter example, and structural gas detection here. In order to maintain the level inside the container, a minimum of three personnel must be put in place, and the operator has to monitor the oil level and operate the discharge valve to control the level inside the container. When opening and closing the outlet valve, there were many problems such as the trouble of detecting the gas using a separate gas detector and the possibility of misjudgment due to the mixing of gas scattered outside.

The present invention has been made to solve these problems of the prior art.

In particular, the present invention can accurately and reliably detect the melting damage of the cooling plate (or the tuyere) within a short time, and can be arbitrarily positioned anywhere in a small, lightweight portable device, and the gas is scattered around. Even though it is an independent, airtight structure using air bag principle that is not influenced at all by external influence, it is provided to provide blast furnace and cooling plate (or air vent) melting hand detector without any possibility of wrong plate.

Hereinafter, this will be described in more detail with reference to the accompanying drawings.

The blast furnace bulge and cooling panel foreclosure detector according to the present invention of the system are located outside the furnace shell 6 and are connected to the water supply and drain pipe 2 side.

That is, the blast furnace vent and the cooling panel for the hand detector is connected to one side of the water supply and drain pipe (2) is connected through the lower side of one side of the gas collection container (8) which is a rectangular small cylinder, the gas collection The other side of the cylinder 8 is connected to the curved drainage pipe 18 via the flow control valve 13.

In addition, on the upper side plane of the gas collecting cylinder 8, a cylindrical transparent gas collecting cylinder 9 having a semi-circular head is penetrated with the gas collecting cylinder 8 to be fixed in position, and the gas collecting cylinder 9 At the semicircular apex of), a cylindrical separation device 10 having a semicircle downward is vertically connected therethrough.

In addition, the upper surface of the separation device 10 is connected to the body portion 11a side of the detection device 11, the gas oil pipe 12 having the blocking side 15 is fixed on the gas collection container (8) The cylindrical transparent exterior 115 is connected to the upper surface of the body portion 11a of the detection device 11.

In addition, a detection rod insertion hole 14 for inserting a detection rod of carbon monoxide is provided on one side of the body portion 11a.

On the other hand, the branch device 10 has an internal structure as shown in FIG. In other words, the outer cylinder 104 has an upper side open and a threaded pipe reading portion 104a at the apex of the lower semicircle, and a thread 104b for screwing the cover member 106 at the upper side opening. The cover member 106 has a center through which the rubber packing 101 and the connection pipe 102 are formed.

In addition, the detection device 11 has a configuration as shown in FIG. That is, the transparent transparent tube 115 is coupled to the lower body portion 11a side as the fixing member 114, and the transparent inner tube fixed to the central portion of the transparent outer tube 115 from the body portion 11a. 116 is installed with the coil spring 113.

The transparent inner tube 116 is connected to the gas inlet hole 11b to which the gas oil pipe 12 is connected and the lower surface thereof, and a predetermined space portion between the transparent inner tube 116 and the transparent outer tube 115. The gas outlet 11c penetrates through the said body part 11a from the carbon monoxide detection rod 14a formed in the one side of the body part 11a to the detection rod insertion port 14 side.

A carbon monoxide reagent 11d is inserted into a predetermined portion of the transparent inner tube 116. 16 and 17 in FIG. 1 are the fixing plate 17 and the fixing base 16 of the transparent collecting container 9 and the separating device 10, and 103, 117, and 118 in FIGS. Is the airtight ring, and 10a is the float ball. The operation and effect of the melt-discovery device of the tuyere and the cooling plate according to the present proposal of this configuration are as follows.

That is, in FIG. 1, the flow rate control valve 13 of the blowhole and cooling vane detection apparatus of the present invention is completely opened, and the shutoff valve 15 is closed.

Then, the connection pipe 7 installed on the gas collection container 8 side is connected to the water supply and drain pipe 2 side of the corresponding place for the test, and the blocking valve 15 is opened to pass the cooling water.

The cooling water is filled in the gas collecting container (8) while passing through the flow control valve 13 in the gas collecting container (8), so that the cooling water is filled up to about 의 of the gas collecting container (9) The air in the gas collecting container 9 is discharged to the outside.

On the other hand, the detection apparatus 11 of FIG. 3 disassembles the fixing member 114 of the transparent outer tube 115, inserts the carbon monoxide reagent 11d into the transparent inner tube 116, and is assembled in the reverse order.

In such a state, the cooling plate 3 (or the funnel) installed on the furnace side has a constant amount of coolant connected to the connecting pipe 7 of the air port and cooling panel discriminant detector 7 gas collection vessel 8 flow control valve 13. A flow path is formed on the curved drainage pipe 18 side, and cooling water of the blast furnace itself is sent to a drain box (not shown). When the cooling plate 3 (or the tuyere) installed on the furnace side is melted, carbon monoxide is impregnated and flows into the cooling plate 3 tube body, so that the carbon monoxide flows into the gas collecting container 8 on the gas collecting container 8 side. 9) It will be gathered to the upper part.

At this time, the float ball (10a) is installed in a portion through which the gas oil pipe (12) connected to the detection device 11 side is connected, so that the level of the coolant filled in the gas collecting tank (9) is usually high, so that the top surface of the separation device (10) side When it reaches to the gas passage 12, the passage on the side of the gas oil pipe 12 is blocked, but the gas is kept open at a predetermined level or less, and the gas collected at the upper layer of the gas collecting container 9 is separated from the separation device 10 to the blocking side 15. → gas inlet 11b formed in the body portion 11a of the detector 11 → transparent inner tube 116 → carbon monoxide reagent 11d → space between the transparent outer tube 115 and the transparent inner tube 116 It progresses to the path | route of the carbon monoxide detection rod 14a side through the gas outlet 11c of the body part 11a side.

As a result, the carbon monoxide reagent 11d causes chemical changes in the transparent inner tube 116 so that the internal gas state is determined on the carbon monoxide detecting rod 14a, so that the melted state of the cooling panel piped to the furnace side can be easily determined. It can be determined.

On the other hand, when the coolant filling up in the gas collecting container 9 does not generate carbon monoxide or the like, the carbon monoxide detection rod 14a is also in a steady state because no change occurs in the carbon monoxide reagent 11d on the transparent inner tube 116 side. To be maintained.

Thus, according to the present invention, the blowhole and the cooling panel piped on the furnace side can be easily configured for the portable state determination device, which increases the advantages of use and management, and is compatible with any equipment that requires the detection of gas leakage in the pipe. In particular, it is an independent sealed test apparatus, and the present invention has a beneficial feature that the reliability of the test results can be secured by not affecting the external environment at all.

Claims (1)

In the apparatus capable of determining by gas detection whether the air vents and the cooling plate piped to the side wall of the blast furnace are damaged, a gas collecting container 9 filled with a predetermined amount of coolant is provided on the upper side, and the cooling water is provided on the side sides thereof. And a gas collecting tank 8 having a flow regulating valve 13 installed in a passage leading to the connecting pipe 7 and the curved drainage pipe 18 side of the gas collecting tube 8 and vertically penetrating from an upper portion of the gas collecting tube 8. Float ball (10a) and the gas and cooling water separating device 10 is provided in the connection portion on the side of the gas oil pipe (12) so that it is possible to separate a constant gas and cooling water: the blocking valve (15) from the gas oil pipe (12) A transparent outer tube 115 is provided on the upper portion of the body portion 11a having the gas inlet hole 11b and the gas outlet hole 11c extending through the transparent inner tube 116 into which the carbon monoxide reagent 11d is inserted. It is supported by the coil spring 113 and the transparent inner tube 116 One side of the detection rod insertion hole 14 which is connected to the gas inlet hole 11b on the side of the body portion 11a and inserts the carbon monoxide detection rod 14a into the gas outlet hole 11c on the body portion 11a side. ) Is provided with a detecting device (11): a blast furnace detector and a cooling plate detector of the blast furnace, characterized in that consisting of the configuration.