阅读说明：本技术 一种直接安装在钢包烘烤器上测量烘烤温度的红外装置 (Infrared device directly mounted on ladle roaster for measuring roasting temperature ) 是由 陈龙 左爱娟 毛海龙 郭显才 于 2019-12-26 设计创作，主要内容包括：本发明公开一种直接安装在钢包烘烤器上测量烘烤温度的红外装置,包括内管、冷却装置、隔离内管、内盖板和外壳；所述内管安装于外壳内,所述内管内安装有红外测温仪,所述红外测温仪螺纹连接有隔离内管,所述隔离内管伸出内管一侧外部,所述内管的另一侧为封闭的内盖板,所述内管的外表面上安装有冷却装置。本发明减少了设备成本和维护费用。(The invention discloses an infrared device directly mounted on a ladle roaster for measuring roasting temperature, which comprises an inner pipe, a cooling device, an isolation inner pipe, an inner cover plate and an outer shell, wherein the inner pipe is arranged on the inner cover plate; the inner pipe is arranged in the shell, an infrared thermometer is arranged in the inner pipe, the infrared thermometer is in threaded connection with an isolation inner pipe, the isolation inner pipe extends out of one side of the inner pipe, a closed inner cover plate is arranged on the other side of the inner pipe, and a cooling device is arranged on the outer surface of the inner pipe. The invention reduces the equipment cost and maintenance cost.)

1. An infrared device directly mounted on a ladle roaster for measuring roasting temperature is characterized by comprising an inner pipe, a cooling device, an isolation inner pipe, an inner cover plate and an outer shell; the inner pipe is arranged in the shell, an infrared thermometer is arranged in the inner pipe, the infrared thermometer is in threaded connection with an isolation inner pipe, the isolation inner pipe extends out of one side of the inner pipe, a closed inner cover plate is arranged on the other side of the inner pipe, and a cooling device is arranged on the outer surface of the inner pipe.

2. The infrared device for measuring a toasting temperature directly mounted on a ladle toaster as claimed in claim 1, further comprising a front sealing plate, a front inner sealing plate, a fixed outer tube and a rear cover; the fixed outer pipe sleeve is arranged on the isolation inner pipe, a front sealing plate and a front inner sealing plate are sequentially arranged on the fixed outer pipe, the front sealing plate is fixedly connected with one side surface of the shell in a sealing mode, the rear cover is connected with the other side surface of the shell through screws, and the front inner sealing plate is fixedly connected with the inner pipe.

3. The infrared device for measuring roasting temperature directly installed on the ladle roaster as claimed in claim 2, wherein the outer surface of the fixed outer tube has a decreasing step structure, the front sealing plate is fixed at the first step, the front inner sealing plate is fixed at the second step, the joint of the isolation inner tube and the fixed outer tube is provided with a protruding positioning ring, and the isolation inner tube is embedded in the end of the fixed outer tube.

4. The infrared device for measuring the toasting temperature directly mounted on the ladle toaster as claimed in claim 3, wherein said isolating inner tube has an isolating lens mounted in its free end, said isolating lens having an O-ring thereon.

5. The infrared device for measuring baking temperature directly installed on the ladle roaster as claimed in claim 3, wherein the outer shell is made of fire-resistant cotton with a through center, a front sealing plate is installed on one side of the outer shell, a rear cover is installed on the other side of the outer shell, the inner tube is installed in the middle of the outer shell, the fire-resistant cotton is installed between the outer shell and the inner tube, and the fire-resistant cotton is installed between the front sealing plate and the front inner sealing plate.

6. The infrared device for measuring toasting temperature directly mounted on a ladle roaster as claimed in claim 5, wherein the rear cover is fixedly connected with the housing by means of screws, and the rear cover is provided with a handle.

7. The infrared device for measuring a toasting temperature directly mounted on a ladle toaster as claimed in claim 2, wherein said inner tube has a through cylindrical structure with a front inner sealing plate mounted on one side thereof and an inner cover plate mounted on the other side thereof, and a cooling means is provided on the outer surface thereof.

8. The infrared device for measuring the toasting temperature directly mounted on the ladle toaster as claimed in claim 7, wherein said cooling means is a cooling copper tube fixed around the outer surface of the inner tube, the inlet and outlet of said cooling copper tube extending out of the outer shell, and a cooling gas introduced into said cooling copper tube.

9. The infrared device for measuring a toasting temperature directly mounted on a ladle toaster as claimed in claim 1, wherein said inner cover plate is connected to the inner tube by screws, and said inner cover plate is provided with a small handle.

Technical Field

The invention belongs to the technical field of temperature measurement of a ladle roaster, and particularly relates to an infrared device which is directly arranged on the ladle roaster and used for measuring roasting temperature.

Background

Before the molten steel in a steel plant is poured into a ladle, the refractory in the ladle is baked and heated to the high temperature of 800-1200 ℃, so that the refractory is prevented from bursting and the temperature drop of the molten steel is controllable. In recent years, the continuous temperature measurement of refractory materials in the ladle by adopting an infrared thermometer in the ladle baking process is a new technology and is being popularized and applied in China. According to the technology, an optical fiber probe for infrared temperature measurement is installed on a ladle baking cover, a refractory material in a ladle is aimed to measure through fixing of a support, a lens is swept by compressed air to protect, an optical fiber is protected by a heat-insulating material, and flame below the optical fiber is isolated by a fire baffle. The measured temperature signal is sent to a temperature control system for closed-loop control, so that a large amount of energy and production cost are saved. The service life of the refractory is prolonged, and the quality of the molten steel cast steel is improved. However, in application, because flame often moves up the ladle cover, the temperature measuring probe is very easy to burn out in a high-temperature environment, and the temperature measuring equipment is directly arranged above the roaster surrounded by the flame and is very easy to burn out; the cooling medium of the infrared thermometer cannot be used with water, and water leakage can cause explosion; the number of devices on the cover is large, the installation space position is limited, and the protection device of the infrared thermometer cannot be made too large; the maintenance of the ladle cover needs the overhead crane to be lifted away, and the infrared thermometer instrument is easy to be damaged; frequent damage of the optical fiber becomes a problem.

Disclosure of Invention

The purpose of the invention is as follows: the invention aims to provide an infrared device which is directly arranged on a ladle roaster to measure roasting temperature, aiming at the defects of the prior art.

The technical scheme is as follows: the invention relates to an infrared device directly arranged on a ladle roaster for measuring roasting temperature, which comprises an inner pipe, a cooling device, an isolation inner pipe, an inner cover plate and an outer shell; the inner pipe is arranged in the shell, an infrared thermometer is arranged in the inner pipe, the infrared thermometer is in threaded connection with an isolation inner pipe, the isolation inner pipe extends out of one side of the inner pipe, a closed inner cover plate is arranged on the other side of the inner pipe, and a cooling device is arranged on the outer surface of the inner pipe.

According to a further preferable technical scheme, the invention further comprises a front sealing plate, a front inner sealing plate, a fixed outer tube and a rear cover; the fixed outer pipe sleeve is arranged on the isolation inner pipe, a front sealing plate and a front inner sealing plate are sequentially arranged on the fixed outer pipe, the front sealing plate is fixedly connected with one side surface of the shell in a sealing mode, the rear cover is connected with the other side surface of the shell through screws, and the front inner sealing plate is fixedly connected with the inner pipe.

Preferably, the outer surface of the fixed outer tube is of a degressive stepped structure, the front sealing plate is fixedly arranged at the first step, the front inner sealing plate is fixedly arranged at the second step, a protruding positioning ring is arranged at the joint of the isolation inner tube and the fixed outer tube, and the isolation inner tube is embedded into the tail end of the fixed outer tube.

Preferably, an isolation lens is installed in the free end of the isolation inner tube, and an O-ring is padded on the isolation lens.

Preferably, the outer shell is made of fire-resistant cotton with a through middle part, a front sealing plate is arranged on one side of the outer shell, a rear cover is arranged on the other side of the outer shell, the inner pipe is arranged in the middle of the outer shell, the fire-resistant cotton is arranged between the outer shell and the inner pipe, and the fire-resistant cotton is arranged between the front sealing plate and the front inner sealing plate.

Preferably, the rear cover is fixedly connected with the shell through screws, and a handle is mounted on the rear cover.

Preferably, the inner pipe is a through cylinder structure, a front inner sealing plate is installed on one side of the inner pipe, an inner cover plate is installed on the other side of the inner pipe, and a cooling device is arranged on the outer surface of the inner pipe.

Preferably, the cooling device is a cooling copper pipe fixed on the outer surface of the inner pipe in a surrounding manner, an inlet and an outlet of the cooling copper pipe extend out of the outer shell, and cooling gas is introduced into the cooling copper pipe.

Preferably, the inner cover plate is connected with the inner pipe through a screw, and a small handle is installed on the inner cover plate.

According to the invention, the infrared thermometer is directly arranged on the ladle heater, when the ladle heater needs to be overhauled, only the rear cover and the inner sealing plate need to be disassembled, the infrared thermometer and the isolation inner tube are taken out of the inner tube for overhauling, and the infrared thermometer and the isolation inner tube are arranged in the inner tube after overhauling.

Has the advantages that: (1) according to the invention, the infrared thermometer is directly installed on the ladle baking device, and the cooling device and the fireproof cotton are installed on the inner pipe provided with the infrared thermometer, so that the high temperature and flame around the infrared thermometer are isolated, the infrared thermometer is ensured to work in an allowable temperature resistant range, the cooling device is a cooling copper pipe, cooling air is introduced into the cooling copper pipe to cool the inner pipe, and the problem of potential safety hazard caused by water leakage of a water-cooling heat dissipation device at the top of the ladle baking cover is solved;

(2) when the invention needs to be overhauled, the rear cover and the inner sealing plate are only needed to be disassembled, the infrared thermometer and the isolating inner tube are taken out of the inner tube for overhauling, and then the infrared thermometer and the isolating inner tube are installed in the inner tube after overhauling; the working strength of installation personnel can be reduced, and the equipment cost and the maintenance cost are reduced;

(3) in the application process of the invention, the damage of equipment can be obviously reduced, the labor intensity of workers is reduced, the production efficiency is improved, the cost is saved, and good benefits are brought to enterprises.

Drawings

FIG. 1 is a schematic diagram of an infrared device according to the present invention;

FIG. 2 is a cross-sectional view of an infrared device according to the present invention;

FIG. 3 is a schematic structural diagram of the inner isolation tube according to the present invention;

FIG. 4 is a schematic structural view of the fixed outer tube of the present invention;

FIG. 5 is a cross-sectional view of a stationary outer tube according to the present invention;

FIG. 6 is a schematic structural view of the inner cover plate according to the present invention;

FIG. 7 is a schematic view of the cross section A-A in FIG. 6.

In the figure, 1-outer shell, 2-cooling copper pipe, 3-rear cover, 4-inner cover plate, 5-inner pipe, 6-infrared thermometer, 7-front sealing plate, 8-front inner sealing plate, 9-fixed outer pipe, 10-isolation inner pipe, 11-isolation lens, 12-O-shaped ring, and 13-refractory cotton.

Detailed Description

The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.