A blast furnace electrical cable protection device

Abstract

The utility model discloses a blast furnace electrical cable protection device, which belongs to the field of cable protection technology, and solves the problem that the existing blast furnace electrical cable protection device lacks active heat dissipation measures and has poor heat dissipation effect. The utility model includes a cooling box, which is installed on the outer wall of the blast furnace, and a mounting pipe is provided in the cooling box. The cable passes through the mounting pipe and extends from one end of the cooling box. A thermocouple is installed on the cooling box, and one end of the thermocouple is connected to the cable. A water inlet pipe and a water outlet pipe are installed on the top of the cooling box, and the far ends of the water inlet pipe and the water outlet pipe are connected to a cooling water device. The blast furnace electrical cable protection device provided by the utility model is provided with a cooling box, a water inlet pipe and a water outlet pipe, and the cooling water device is used to continuously circulate cooling water into the cooling box, so as to actively dissipate heat and cool down the cable close to the outer shell of the blast furnace, so as to effectively reduce the cable temperature and increase the service life of the cable.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable protection, and in particular relates to a blast furnace electrical cable protection device. Background Art

[0002] Blast furnaces are used to smelt and produce industrial metals, usually pig iron, but also other metals such as lead or copper. Electrical is a science that uses electrical energy, electrical equipment and electrical technology to create, maintain and improve confined space and environment. It covers three aspects: conversion, utilization and research of electrical energy, including basic theory, application technology, facilities and equipment. Electrical can also be simply understood as the use of electricity to generate energy. Electrical equipment needs to be installed on the blast furnace to detect the blast furnace temperature in order to control the blast furnace temperature and better smelt the metal.

[0003] The existing disclosed blast furnace electrical cable protection device lacks active heat dissipation measures and only relies on the protection tube to passively dissipate heat for the cable, which has a poor heat dissipation effect. The blast furnace shell is high, and the high temperature will accelerate the aging speed of rubber products, thereby seriously affecting the service life of the cables installed near the blast furnace shell. Therefore, it is necessary to provide a blast furnace electrical cable protection device to solve the above technical problems. Utility Model Content

[0004] The utility model aims to provide a blast furnace electrical cable protection device to solve the problem that the existing blast furnace electrical cable protection device lacks active heat dissipation measures and has poor heat dissipation effect.

[0005] The technical solution of the utility model is: a blast furnace electrical cable protection structure, comprising a cooling box, the cooling box is installed on the outer wall of the blast furnace, a mounting pipe is provided in the cooling box, the cable passes through the mounting pipe and extends from one end of the cooling box, a thermocouple is installed on the cooling box, one end of the thermocouple is connected to the cable, a water inlet pipe and a water outlet pipe are installed on the top of the cooling box, and the far ends of the water inlet pipe and the water outlet pipe are connected to cooling water equipment.

[0006] As a further improvement of the utility model, a threaded groove and a mounting groove are respectively provided at the two ends of the mounting tube. The threaded groove is located at the end close to the cable, and the mounting groove is located at the end close to the thermocouple. A first sealing ring and a locking piece are installed in the threaded groove, and a second sealing ring is installed in the mounting groove.

[0007] As a further improvement of the utility model, the locking piece includes an integrally formed threaded tube and a nut, and the threaded tube is arranged in the nut.

[0008] As a further improvement of the utility model, a connecting ear is provided on one side of the cooling box close to the thermocouple, and a connecting hole is provided on the connecting ear.

[0009] The beneficial effects of the utility model are:

[0010] 1. The utility model provides a cooling box, a water inlet pipe and a water outlet pipe, and uses a cooling water device to continuously circulate cooling water into the cooling box, so as to actively dissipate heat and cool down the cables close to the blast furnace shell, thereby effectively reducing the cable temperature and increasing the service life of the cables;

[0011] 2. The utility model can isolate the cables from the cooling water by installing the installation pipe in the cooling box, thereby improving the safety of the device;

[0012] 3. The utility model can achieve double sealing by installing a first sealing ring and a second sealing ring at both ends of the installation pipe, effectively preventing harmful gases in the furnace from leaking through the installation pipe;

[0013] 4. The utility model can conveniently turn the locking member and fix the first sealing ring by providing an integrally formed threaded tube and nut;

[0014] 5. The utility model can conveniently connect the cooling box to the blast furnace by arranging connecting ears on the cooling box and opening connecting holes on the connecting ears. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a structural cross-sectional view of the cooling box in the utility model;

[0017] Figure 3 It is a structural cross-sectional view of the installation pipe in the utility model;

[0018] Figure 4 It is a structural sectional view of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the locking member in the utility model.

[0020] In the figure: 1-cooling box; 2-water inlet pipe; 3-water outlet pipe; 4-thermocouple; 5-cable; 6-mounting pipe; 7-connecting ear; 8-connecting hole; 9-first sealing ring; 10-locking piece; 11-threaded groove; 12-mounting groove; 13-second sealing ring; 14-threaded pipe; 15-nut. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments. The present invention includes but is not limited to the following embodiments.

[0022] like Figure 1-5As shown, a blast furnace electrical cable protection structure includes a cooling box 1, which is fixedly mounted on the outer wall of the blast furnace. A mounting tube 6 is installed in the cooling box 1, and a cable 5 passes through the mounting tube 6 and extends from one end of the cooling box 1. A thermocouple 4 for detecting the internal temperature of the blast furnace is installed on the inner side of the cooling box 1, and one end of the thermocouple 4 extends into the blast furnace to detect the internal temperature of the blast furnace. The other end of the thermocouple 4 is connected to the cable 5 and passes through the other side of the cooling box 1. The cable 5 is separated from the cooling water in the cooling box 1 by the mounting tube 6, thereby preventing the cooling water from invading the cable 5 and causing a leakage accident. The use is safer. By installing the mounting tube 6 in the cooling box 1, the cable 5 can be isolated from the cooling water, thereby improving the safety of the device.

[0023] The length of the cooling box 1 is preferably 30-40 cm, or it can be designed according to on-site usage conditions, so that there is a sufficient distance between the exposed part of the cable 5 and the outer wall of the blast furnace to reduce the impact of the high temperature of the blast furnace shell on the exposed part of the cable 5; an inlet pipe 2 and an outlet pipe 3 are installed on the top of the cooling box 1, and the inlet pipe 2 and the outlet pipe 3 are connected to external cooling water equipment.

[0024] When in use, the cooling water device provides cooling water and sends it into the cooling box 1 through the water inlet pipe 2. The cooling water cools the cable 5 in the box 1, and the generated high-temperature water flows back to the cooling water device through the water outlet pipe 3 for re-cooling. The cooling water circulates in this way, thereby reducing the temperature of the cable 5 close to the blast furnace shell and maintaining it in a lower temperature range for a long time, which can help to extend the service life of the cable 5.

[0025] By providing a cooling box 1, a water inlet pipe 2 and a water outlet pipe 3, a cooling water device is used to continuously circulate cooling water into the cooling box 1, and the cable 5 close to the blast furnace shell is actively cooled and cooled, which can effectively reduce the temperature of the cable 5 and increase the service life of the cable 5.

[0026] Embodiment 1,

[0027] like Figure 2-4As shown, a thread groove 11 and a mounting groove 12 are respectively provided at the two ends of the mounting tube 6. The thread groove 11 is located at one end close to the cable 5, and the mounting groove 12 is located at one end close to the thermocouple 4. A first sealing ring 9 and a locking member 10 are installed in the thread groove 11, and a second sealing ring 13 is installed in the mounting groove 12. The second sealing ring 13 is tightly sleeved on the thermocouple 4, and the first sealing ring 9 is tightly sleeved on the cable 5. When the cooling box 1 is fixed on the blast furnace shell, the second sealing ring 13 will be squeezed to deform the second sealing ring 13, and the gap between the thermocouple 4 and the mounting groove 12, as well as the gap between the thermocouple 4 and the second sealing ring 13, will be effectively sealed. The locking member 10 is sleeved on the cable 5, and one end of the locking member 10 is screwed into the thread groove 11 and squeezes the first sealing ring 9, so that the first sealing ring 9 is deformed by force, so that the gap between the outer end of the mounting tube 6 and the cable 5 is sealed.

[0028] By installing the first sealing ring 12 and the second sealing ring 13 at both ends of the installation pipe 6 , double sealing can be achieved, effectively preventing harmful gases in the furnace from leaking through the installation pipe 6 .

[0029] Embodiment 2,

[0030] like Figure 5 As shown, the locking member 10 includes an integrally formed threaded tube 14 and a nut 15. The threaded tube 14 is arranged in the nut 15. The cable 5 passes through the center of the threaded tube 14 on the nut 15. The threaded tube 14 is screwed into the thread groove 11 and squeezes the first sealing ring 9, so that the first sealing ring 9 is fixed in the thread groove 11. The threaded tube 14 is twisted by clamping the nut with a wrench, which is more convenient to use.

[0031] By providing the integrally formed threaded tube 14 and nut 15 , the locking member 10 can be easily screwed and the first sealing ring 9 can be effectively fixed.

[0032] Embodiment 3,

[0033] like Figure 1-3 As shown, a connecting ear 7 is provided on one side of the cooling box 1 close to the thermocouple 4, and a connecting hole 8 is provided on the connecting ear 7. During installation, the bolt column on the blast furnace shell is passed through the connecting hole 8 and fastened with a nut, thereby fixing the cooling box 1 on the blast furnace shell.

[0034] By providing a connecting ear 7 on the cooling box 1 and opening a connecting hole 8 on the connecting ear 7, the cooling box 1 can be conveniently connected to the blast furnace.

[0035] Working principle: When in use, the external cooling water equipment provides cooling water and sends it into the cooling box 1 through the water inlet pipe 2. The cooling water cools the cable 5 in the box 1, and the generated high-temperature water flows back to the cooling water equipment through the water outlet pipe 3 for re-cooling. The cooling water circulates in this way, thereby reducing the temperature of the cable 5 close to the blast furnace shell, allowing the cable 5 to be maintained in a lower temperature range for a long time, which can help to extend the service life of the cable 5.

Claims

1. A blast furnace electrical cable protection device, characterized in that: The invention comprises a cooling box (1), wherein the cooling box (1) is mounted on the outer wall of a blast furnace, wherein a mounting pipe (6) is arranged inside the cooling box (1), wherein the cable (5) passes through the mounting pipe (6) and extends from one end of the cooling box (1), wherein a thermocouple (4) is mounted on the cooling box (1), wherein one end of the thermocouple (4) is connected to the cable (5), and wherein a water inlet pipe (2) and a water outlet pipe (3) are mounted on the top of the cooling box (1), wherein the far ends of the water inlet pipe (2) and the water outlet pipe (3) are connected to cooling water equipment.

2. A blast furnace electrical cable protection device according to claim 1, characterized in that: A threaded groove (11) and a mounting groove (12) are respectively provided at two ends of the mounting tube (6); the threaded groove (11) is located at an end close to the cable (5), and the mounting groove (12) is located at an end close to the thermocouple (4); a first sealing ring (9) and a locking member (10) are installed in the threaded groove (11), and a second sealing ring (13) is installed in the mounting groove (12).

3. A blast furnace electrical cable protection device according to claim 2, characterized in that: The locking member (10) comprises an integrally formed threaded tube (14) and a nut (15), wherein the threaded tube (14) is disposed inside the nut (15).

4. A blast furnace electrical cable protection device according to claim 1, characterized in that: A connecting ear (7) is provided on a side of the cooling box (1) close to the thermocouple (4), and a connecting hole (8) is provided on the connecting ear (7).

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