CN213570557U

CN213570557U - Leakage detection device for cooling wall of iron-making blast furnace

Info

Publication number: CN213570557U
Application number: CN202021825415.XU
Authority: CN
Inventors: 李天宝
Original assignee: Hebei Rongxin Iron And Steel Co ltd
Current assignee: Hebei Rongxin Iron And Steel Co ltd
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2021-06-29
Anticipated expiration: 2030-08-27

Abstract

A leakage detection device for a cooling wall of an iron-making blast furnace is provided with a cooling water circulation mechanism and an electronic monitoring mechanism, wherein the cooling water circulation mechanism comprises a water inlet main pipe, a water outlet main pipe transparent pipe, a connecting water pipe transparent pipe, a cooling wall and a connecting water pipe; the electronic monitoring mechanism is provided with a photoelectric pair tube, a triode T2, a relay J1 and an acousto-optic alarm circuit BJ, and the photoelectric pair tube LED1 and the photoelectric tube T1 are arranged on two sides of a transparent tube (4) of the water outlet main pipe. The utility model discloses whether can produce the bubble in the automatically monitoring outfall sewer hyaline tube to carry out the early warning to the seepage in the seepage initial stage, in addition, the utility model discloses can also be through artifical patrol, whether each connection water pipe hyaline tube department of monitoring stave unit has the bubble, and then can confirm the concrete pipeline that takes place the seepage, thereby reduced the accident rate, also reduced operating personnel's intensity of labour.

Description

Leakage detection device for cooling wall of iron-making blast furnace

Technical Field

The utility model relates to the technical field of metallurgy, in particular to a leakage detection device for a cooling wall of an iron-making blast furnace.

Background

In the metallurgical industry, an iron-making blast furnace is provided with a cooling wall which is arranged between an outer furnace shell and an inner furnace lining, is mainly made of cast iron, cast steel or copper, and can cool the inner lining of the blast furnace and prevent the furnace shell from being heated and burnt. The cooling wall is easy to leak because the cooling wall can bear high temperature, the abrasion of furnace burden, the erosion of slag and the scouring of coal gas flow. The technical means adopted at present include a pressing method, a water control method, a local water control method and a lighting method, the safety of operators is not guaranteed by the methods, each cooling wall needs to be checked one by one, the checking time is too long, the labor intensity of workers is too high, and in order to solve the problems and early warn leakage in the early stage of leakage, a detection device for leakage of the cooling wall of the iron-making blast furnace is urgently needed to be provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an iron-making blast furnace stave leakage detection device can be to the leakage early warning at the leakage initial stage, can distinguish which group's stave leaks after the emergence is leaked simultaneously, like this greatly reduced workman intensity of detection, improved production efficiency.

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

a leakage detection device for a cooling wall of an iron-making blast furnace is provided with a cooling water circulation mechanism and an electronic monitoring mechanism, wherein the cooling water circulation mechanism comprises a water inlet main pipe, a water outlet main pipe transparent pipe, a connecting water pipe transparent pipe, a cooling wall and a connecting water pipe; the water inlet main pipe is arranged at the lower part of the blast furnace and surrounds the blast furnace, the upper part of the water inlet main pipe is provided with a water distribution pipe, and the water distribution pipe is connected with a water pipe on the cooling wall through a connecting water pipe; the water outlet main pipe is arranged on the upper portion of the blast furnace and surrounds the blast furnace, the lower portion of the water outlet main pipe is provided with a water distribution pipe, and the water distribution pipe is communicated with a water pipe in the cooling wall through a transparent pipe of a connecting water pipe.

According to the leakage detection device for the cooling wall of the iron-making blast furnace, the electronic monitoring mechanism is provided with a photoelectric pair tube, a triode T2, a relay J1 and an acousto-optic alarm circuit BJ, the photoelectric pair tube comprises an emission tube LED1 and a photoelectric tube T1, and an LED1 and a photoelectric tube T1 in the photoelectric pair tube are respectively arranged on two sides of a transparent tube of a water outlet main pipe; the collector of the triode T2 is connected with the control coil of the relay J1, and the other end of the control coil is connected with the positive electrode of the power supply; the normally open contact J1-1 of the relay J1 is communicated with an acousto-optic alarm circuit BJ, and an audible alarm circuit or a flashing alarm circuit is arranged in the acousto-optic alarm circuit.

According to the leakage detection device for the cooling wall of the iron-making blast furnace, the cooling wall is positioned between the furnace shell and the furnace lining, the cooling wall is formed by splicing a plurality of cooling wall units into a whole in rows and columns, the cooling wall units are provided with water pipe inlets and water pipe outlets, and the water pipe inlets and the water pipe outlets of adjacent cooling walls between each layer are respectively communicated in series through connecting water pipes.

Above-mentioned blast furnace stave leakage detection device, connect the water pipe hyaline tube and set up in the top of stave and with the distributive pipe connection of water main, the lower extreme with the water pipe exit linkage of stave unit.

Advantageous effects

The utility model has the advantages of as follows:

the utility model discloses whether can produce the bubble in the automatically monitoring outfall sewer transparent tube to carry out the early warning to the seepage at the seepage initial stage. In addition, remove behind the electronic detection mechanism automated inspection, the utility model discloses can also be through artifical patrol, whether the water pipe hyaline tube department is connected to the monitoring cooling wall unit respectively has the bubble, and then can confirm the concrete pipeline that takes place the seepage to reduce the accident rate, also reduced operating personnel's intensity of labour.

Drawings

Fig. 1 is a schematic view of the present invention;

FIG. 2 is a partial enlarged view of the present invention;

fig. 3 is an electrical schematic of the electronic monitoring mechanism.

In the drawings, the reference numerals denote: 1. the device comprises a water inlet main pipe, a water outlet main pipe, a 3 electronic monitoring mechanism, a 4 water outlet main pipe transparent pipe, a 5 connecting water pipe transparent pipe, a 6 furnace shell, a 7 cooling wall, a 8 furnace lining, a 9 connecting water pipe.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

The utility model discloses a leakage detection device for a cooling wall of an iron-making blast furnace, which is provided with a cooling water circulation mechanism and an electronic monitoring mechanism 3, wherein the cooling water circulation mechanism comprises a water inlet header pipe 1, a water outlet header pipe 2, a header pipe transparent pipe 4, a connecting water pipe transparent pipe 5, a cooling wall 7 and a connecting water pipe 9; the stave is located between stove outer covering 6 and furnace lining 8, the stave comprises a plurality of stave units concatenation, divide into the multilayer from top to bottom, divide into the multiseriate about, and every stave unit is inside to be arranged and has communicating water pipe from top to bottom, and every water pipe of every stave unit all is equipped with water pipe import and water pipe export, and the water pipe import and the water pipe export of adjacent stave between each layer are through connecting the water pipe and establishing ties the intercommunication. The water inlet main pipe is arranged at the lower part of the blast furnace and surrounds the blast furnace, the upper part of the water inlet main pipe is provided with a water distribution pipe, and the water distribution pipe is connected with a water pipe on the cooling wall through a connecting water pipe; the water outlet header pipe is arranged on the upper portion of the blast furnace and surrounds the blast furnace, the lower portion of the water outlet header pipe is provided with the water distribution pipes, the water distribution pipes are connected with water pipes on the cooling walls through connecting water pipe transparent pipes, cooling water enters the water distribution pipes in a dispersed mode through the water inlet header pipe, flows through the cooling walls, and finally converges to the water outlet header pipe to flow out of the blast furnace.

The novel leakage detection device for the cooling wall of the iron-making blast furnace is provided with an electronic monitoring mechanism 3, wherein the electronic monitoring mechanism is provided with photoelectric geminate transistors (an emitting tube LED1 and a photoelectric tube T1), a triode T2, a relay J1 and a sound-light alarm circuit BJ, and the photoelectric geminate transistors LED1 and the photoelectric tube T1 are arranged on two sides of a transparent tube (4) of a water outlet main pipe; the photoelectric pair tube LED1 and the photoelectric tube T1 are arranged on two sides of the transparent tube (4) of the water outlet manifold, the emitting electrode of the triode T2 is grounded, and the load of the collecting electrode is a control coil of the relay J1; the normally open contact J1-1 of the relay J1 is communicated with an acousto-optic alarm circuit BJ, and an audible alarm circuit or a flashing alarm circuit is arranged in the acousto-optic alarm circuit.

This use neotype blast furnace stave seepage detection device that cools off, set up the connecting water pipe hyaline tube 5 uppermost in the stave, the upper end of connecting water pipe hyaline tube is connected with the distributive pipe of total outlet pipe, and the lower extreme is connected with the delivery port of stave.

When the cooling wall leaks, bubbles can be generated in the cooling water, the light of the transmitting tube LED1 irradiates on the photoelectric tube T1, the photoelectric tube T1 is conducted, the collector is at a high level, the triode T2 is conducted, the relay J1 is electrified to act, the normally open contact J1-1 of the relay is connected with the acousto-optic alarm circuit BJ, an acousto-optic alarm signal is sent out, and a maintenance person is informed of on-site maintenance. The maintainer can also quickly determine which specific row of the cooling wall leaks by observing whether bubbles are generated in the transparent pipe of each row of the connecting water pipe.

Claims

1. The utility model provides an iron-making blast furnace stave leakage detection device which characterized in that: the leakage detection device is provided with a cooling water circulation mechanism and an electronic monitoring mechanism (3), wherein the cooling water circulation mechanism comprises a water inlet main pipe (1), a water outlet main pipe (2), a water outlet main pipe transparent pipe (4), a connecting water pipe transparent pipe (5), a cooling wall (7) and a connecting water pipe (9); the water inlet main pipe is arranged at the lower part of the blast furnace and surrounds the blast furnace, the upper part of the water inlet main pipe is provided with a water distribution pipe, and the water distribution pipe is connected with a water pipe on the cooling wall through a connecting water pipe; the water outlet main pipe is arranged on the upper portion of the blast furnace and surrounds the blast furnace, the lower portion of the water outlet main pipe is provided with a water distribution pipe, and the water distribution pipe is communicated with a water pipe outlet in the cooling wall through a connecting water pipe transparent pipe.

2. The leakage detection device for the cooling wall of the ironmaking blast furnace according to claim 1, characterized in that: the electronic monitoring mechanism (3) is provided with a photoelectric pair tube, a triode T2, a relay J1 and an acousto-optic alarm circuit BJ, the photoelectric pair tube comprises an emission tube LED1 and a photoelectric tube T1, and the LED1 and the photoelectric tube T1 in the photoelectric pair tube are respectively arranged on two sides of a transparent tube (4) of the water outlet main pipe; the collector of the triode T2 is connected with the control coil of the relay J1, and the other end of the control coil is connected with the positive electrode of the power supply; the normally open contact J1-1 of the relay J1 is communicated with an acousto-optic alarm circuit BJ, and an audible alarm circuit or a flashing alarm circuit is arranged in the acousto-optic alarm circuit.

3. The leakage detection device for the cooling wall of the ironmaking blast furnace according to claim 1, characterized in that: the cooling wall (7) is positioned between the furnace shell (6) and the furnace lining (8), the cooling wall is formed by splicing a plurality of cooling wall units in rows and columns into a whole, each cooling wall unit is provided with a water pipe inlet and a water pipe outlet, and the water pipe inlets and the water pipe outlets of the adjacent cooling walls between each layer are respectively communicated in series through connecting water pipes (9).

4. The leakage detection device for the cooling wall of the ironmaking blast furnace according to claim 1, characterized in that: the transparent pipe (5) of the connecting water pipe is arranged at the uppermost end of the cooling wall and is connected with the water distribution pipe of the water outlet main pipe, and the lower end of the transparent pipe is connected with the water pipe outlet of the cooling wall unit.