Lower surface protection cooling device of slab online surface quality detection system

Abstract

The utility model relates to a lower surface protection cooling device of a slab online surface quality detection system, which is characterized in that a lower surface protection room 5 is arranged on the lower side of a slab conveying roller way 1 of a continuous casting machine; the lower surface protection room 5 is internally provided with plate blank lower surface detection equipment 6 for detecting the lower surface of a plate blank 4, the lower surface protection cooling device of the plate blank online surface quality detection system is arranged at the top of the lower surface protection room 5, and the lower surface protection cooling device of the plate blank online surface quality detection system is a water tank internally provided with circulating water; the distance between the edge of the projection of the lower surface protection room 5 on the water tank and the nearest edge of the water tank is larger than 2 cm. It is ensured that the space between the lower surface protection room 5 and the plate blank conveying roller bed 1 is completely shielded by the water tank and is abundant, and heat transmitted from the plate blank conveying roller bed 1 is prevented from being radiated to the lower surface protection room 5.

Description

Technical Field

[0001] The utility model relates to a lower surface protection and cooling device of an online surface quality detection system for a slab. Background Art

[0002] In addition to high-precision detection capabilities, the slab online quality inspection system also requires equipment protection measures to ensure stable operation of the equipment and accuracy of the test results. At present, the slab bottom surface inspection equipment is directly installed in the bottom surface protection room on the lower side of the slab conveyor roller of the continuous casting machine. Since the high temperature radiation of the slab can reach 900℃-1000℃, the top of the bottom surface protection room will be baked for a long time, which will cause the top steel plate to bulge and deform, and at the same time damage the camera, light source, circuit, etc. inside the protection room and the stable operation of the equipment. Utility Model Content

[0003] The technical problem to be solved by the utility model is: how to solve the problem that the slab bottom surface detection equipment is easily damaged due to the excessively high ambient temperature.

[0004] The technical solution adopted by the utility model is: a lower surface protection and cooling device for a slab online surface quality detection system, a lower surface protection room 5 is installed on the lower side of the slab conveying roller 1 of the continuous casting machine, a slab lower surface detection device 6 for detecting the lower surface of the slab 4 is installed in the lower surface protection room 5, the lower surface protection and cooling device for the slab online surface quality detection system is installed on the top of the lower surface protection room 5, the lower surface protection and cooling device for the slab online surface quality detection system is a water tank with circulating water inside, and the distance from the edge of the projection of the lower surface protection room 5 on the water tank to the nearest edge of the water tank is greater than 2cm. Ensure that the lower surface protection room 5 and the slab conveying roller 1 are completely blocked by the water tank and have a surplus, so as to prevent the heat from the slab conveying roller 1 from radiating to the lower surface protection room 5.

[0005] The water tank includes a shell 51 and a partition 52 inside the shell 51. The partition 52 isolates the internal space of the shell 51 into a zigzag water flow channel. An inlet is connected to a water inlet pipe at the inlet of the water flow channel, and an outlet is connected to a water outlet pipe at the outlet of the water flow channel.

[0006] The shell 51 of the water tank is a rectangular structure, and the partition 52 includes a left partition and a right partition arranged from front to back. The left partition and the right partition are of the same size and are both rectangular plates. The left partition is fixed to the left side wall inside the water tank and extends to the right side. The left partition does not contact the right side wall inside the water tank. The upper and lower parts of the left partition are correspondingly welded to the upper and lower sides of the water tank. The right partition is fixed to the right side wall inside the water tank and extends to the left side. The right partition does not contact the left side wall inside the water tank. The upper and lower parts of the right partition are correspondingly welded to the upper and lower sides of the water tank.

[0007] There are two water tanks, and the inlet and outlet of each water tank are connected to the same water inlet pipe and water outlet pipe.

[0008] The beneficial effect of the utility model is that the utility model insulates the lower surface protection room through a water tank with circulating water, reduces the temperature inside the lower surface protection room, and avoids high-temperature damage to the slab lower surface detection equipment inside the lower surface protection room. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0010] Figure 2 It is a schematic diagram of the internal structure of two water tanks of the utility model;

[0011] Figure 3 It is a schematic diagram of the internal structure of a water tank of the utility model;

[0012] Figure 4 yes Figure 3 Schematic diagram of the external structure;

[0013] Among them, 1. slab conveying roller table, 2. upper surface protection room, 3. support frame, 4. slab, 5. lower surface protection room, 6. slab lower surface detection equipment, 51. shell, 52. partition. DETAILED DESCRIPTION

[0014] Since the high temperature radiation of the slab on the slab conveying roller 1 of the continuous casting machine can reach 900℃-1000℃, it is necessary to protect the equipment involved in the slab online surface quality detection system, such as Figure 1As shown, since the space on the upper side of the slab conveying roller 1 of the continuous casting machine is large enough, a large enough upper surface protection room 2 for workers to enter and exit is installed on the upper side of the slab conveying roller 1 through a support frame, and then the temperature inside the upper surface protection room 2 is reduced by air conditioning or other cooling equipment to avoid high temperature damage to the equipment installed inside the upper surface protection room. However, since the space on the lower side of the slab conveying roller 1 of the continuous casting machine is relatively small, it is impossible to cool down and protect the slab lower surface detection equipment 6 on the lower side of the slab conveying roller 1 of the casting machine like the upper surface protection room 2. In the prior art, the slab lower surface detection equipment 6 is generally installed in a lower surface protection room 5 composed of a box body, and simple protection is performed through isolation. However, since the high temperature radiation of the slab can reach 900℃-1000℃, the top of the lower surface protection room will be baked for a long time, which will cause the top steel plate to bulge and deform, and at the same time damage the camera, light source, circuit, etc. inside the protection room and the stable operation of the equipment.

[0015] The utility model installs a water tank with circulating water on the top of the existing lower surface protection room 5, and the water tank constitutes the lower surface protection and cooling device of the slab online surface quality detection system. The water tank is installed on the top of the lower surface protection room, and the internal water flow direction adopts a guide trough method. The cooling water of the slab transport roller conveyor forms water inlet and outlet, and the heat of the high temperature of the slab is taken away by the internal water circulation. It can achieve the purpose of cooling and save energy. The distance from the edge of the projection of the lower surface protection room 5 on the water tank to the nearest edge of the water tank is 3cm. Ensure that the lower surface protection room 5 and the slab conveyor roller conveyor 1 are completely blocked by the water tank and have a surplus, so as to prevent the heat from the slab conveyor roller conveyor 1 from radiating to the lower surface protection room 5.

[0016] The water tank includes a shell 51 and a partition 52 inside the shell 51. The partition 52 isolates the internal space of the shell 51 into a zigzag water flow channel. An inlet is connected to the water inlet pipe at the inlet of the water flow channel, and an outlet is connected to the water outlet pipe at the outlet of the water flow channel. After the water from the water inlet pipe enters the shell 51, a zigzag water flow channel is formed under the action of the partition 52, thereby absorbing more heat and reducing the temperature of the lower part of the shell 51 as much as possible.

[0017] The shell 51 of the water tank is a rectangular structure, and the partition 52 includes a left partition and a right partition arranged from front to back. The left partition and the right partition are of the same size and are both rectangular plates. The left partition is fixed to the left side wall inside the water tank and extends to the right side. The left partition does not contact the right side wall inside the water tank. The upper and lower parts of the left partition are correspondingly welded to the upper and lower sides of the water tank. The right partition is fixed to the right side wall inside the water tank and extends to the left side. The right partition does not contact the left side wall inside the water tank. The upper and lower parts of the right partition are correspondingly welded to the upper and lower sides of the water tank.

[0018] Depending on different situations, there are one or two water tanks, and the inlet and outlet of each water tank are connected to the same water inlet pipe and water outlet pipe.

[0019] like Figure 3 and 4 As shown, there is one water tank, and a detection hole is left at the detection head position of the slab lower surface detection equipment. The lower surface protection room 5 is located next to the detection hole, and the water tank cannot cover the detection hole. It mainly takes away heat and protects the top steel plate of the house from long-term baking and deformation.

[0020] like Figure 2 As shown, there are two water tanks, each of which may be different in size but has a similar internal structure, and the water tanks are separated into a zigzag water flow channel by a partition 52, so that the water flow is more likely to take away the heat, thereby ensuring that the temperature of the lower surface protection room 5 below is relatively low. The reason for using two water tanks is generally because the lower surface protection room 5 itself is divided into two sections or the lower surface protection room 5 needs to lead out a detection probe, etc.

[0021] In one embodiment, the shell 51 of the water tank is made of 6mm thick steel plate, the size fits the top of the protective room below, is fully welded, has no false welds, and is made of Q235 series material. The water inlet is installed on the edge of the water tank and a ball valve is installed. The water outlet is installed on the top of the water tank and is made into an elbow shape to better form an internal water circulation. The characteristics of water's large hot melting capacity and good thermal conductivity, as well as the flow of water to absorb and take away heat, enable the heat to be more effectively transferred to the water, and the heat is taken away through the heat exchange effect of air on water.

[0022] Through the on-site use effect, the temperature in the protection room under the slab is maintained at 18℃-20℃, which reduces equipment failures and maintenance workload, and reduces maintenance costs. By effectively preventing the high temperature of the slab from affecting the equipment, the continuous and stable operation of the equipment in the protection is ensured, and the detection accuracy is further improved.

Claims

1. A slab bottom surface protection and cooling device for an online slab surface quality detection system, wherein a bottom surface protection room (5) is installed on the bottom side of a slab conveying roller table (1) of a continuous casting machine, and a slab bottom surface detection device (6) for detecting the bottom surface of a slab (4) is installed in the bottom surface protection room (5), characterized in that: The lower surface protection and cooling device of the slab online surface quality detection system is installed on the top of the lower surface protection room (5). The lower surface protection and cooling device of the slab online surface quality detection system is a water tank with circulating water inside. The distance between the edge of the projection of the lower surface protection room (5) on the water tank and the nearest edge of the water tank is greater than 2 cm.

2. The bottom surface protection and cooling device of the slab online surface quality detection system according to claim 1 is characterized by: The water tank comprises a shell (51) and a partition (52) inside the shell (51); the partition (52) separates the internal space of the shell (51) into a folded-line water flow channel; an inlet is connected to a water inlet pipe at the inlet of the water flow channel, and an outlet is connected to a water outlet pipe at the outlet of the water flow channel.

3. The bottom surface protection and cooling device of the slab online surface quality detection system according to claim 2 is characterized by: The shell (51) of the water tank is a rectangular parallelepiped structure, and the partition (52) includes a left partition and a right partition arranged from front to back, the left partition and the right partition are of the same size and are both rectangular parallelepiped plates, the left partition is fixed to the left side wall inside the water tank and extends to the right side, the left partition does not contact the right side wall inside the water tank, the upper and lower parts of the left partition are correspondingly welded to the upper and lower sides of the water tank, the right partition is fixed to the right side wall inside the water tank and extends to the left side, the right partition does not contact the left side wall inside the water tank, and the upper and lower parts of the right partition are correspondingly welded to the upper and lower sides of the water tank.

4. The bottom surface protection and cooling device of the slab online surface quality detection system according to claim 2 is characterized by: There are two water tanks, and the inlet and outlet of each water tank are connected to the same water inlet pipe and water outlet pipe.

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