Smelting furnace sampling port covering device

Abstract

A cover plate is arranged on a sampling opening in a furnace top plate, the plate face of the cover plate is attached to the upper end face of the furnace top plate, a guide groove with the groove length direction located in the horizontal direction is formed in the furnace top plate, the cover plate is arranged in the guide groove, and the cover plate and the guide groove are in guide limiting fit. A first flexible rope and a second flexible rope are respectively connected to two ends of the cover plate in the length direction of the guide groove and respectively extend reversely from two ends of the cover plate along the length direction of the guide groove; the power unit drives the first flexible rope and pulls the cover plate to an opening position staggered with the sampling port or drives the second flexible rope and pulls the cover plate to a closing position for covering the sampling port, so that the sampling port can be uncovered or closed, an operator does not need to manually open and close the cover body, the potential safety hazard of short-distance manual operation is avoided, and the working efficiency is improved. The safety of opening and closing operation of the sampling opening is ensured.

Description

Technical Field

[0001] This utility model relates to sampling in a smelting furnace, specifically to a sampling port covering device for a smelting furnace. Background Technology

[0002] In the metallurgical industry, it is essential to detect parameters such as the composition, temperature, liquid level, and slag layer thickness of the high-temperature melt inside the furnace. The purpose is to provide important guidance for adjusting the downstream production process and it is an important component of intelligent factories in industrial production.

[0003] The patent application entitled "Automatic Detection Device for Melt Composition in Furnace with Sampling Rod" (Document No. CN115950875A) is an online application submitted by the applicant. The disclosed technical solution includes a furnace top plate with a sampling hole communicating with the furnace cavity; a sampling mechanism installed on the furnace top plate, the sampling mechanism including a sampling rod that is movable relative to the furnace top plate and adapted to pass through the sampling hole into the furnace cavity for sampling, and a thermocouple installed at the end of the sampling rod; a laser analyzer module and a control module, the laser analyzer module being installed on the furnace top plate and used to emit a detection laser to the sampling rod, and both the laser analyzer module and the thermocouple being electrically connected to the control module. This solution uses a sampling mechanism, a laser analyzer module, a control module, and an openable / closable baffle on the furnace top plate to work together. By using a sampling rod to extend into the furnace through a sampling hole on the furnace top plate, it can automatically detect the content of various elements in the high-temperature melt and slag, the melt temperature, the melt level, and the thickness of the slag layer.

[0004] In existing technology, a cover plate is installed on the sampling port. During sampling, the cover plate needs to be opened so that the sampling rod can be inserted into the furnace through the sampling hole. Currently, the cover plate is mainly opened and closed manually on-site. This method has the following disadvantages: the temperature at the sampling port is high, and sometimes high-temperature flue gas with positive pressure is emitted, which poses a significant safety hazard to the manual opening operator. Moreover, the operating environment is harsh due to the flue gas, which is detrimental to the health of the manual operator. Summary of the Invention

[0005] This utility model provides a sampling port covering device for a smelting furnace, which replaces the traditional manual operation of opening or closing the sampling port, eliminating the safety hazards of manual operation.

[0006] To achieve the above objectives, the technical solution adopted is as follows: a sampling port covering device for a smelting furnace, wherein a cover plate is provided on the sampling port on the furnace top plate, the surface of the cover plate is arranged in close contact with the upper end surface of the furnace top plate, a guide groove with the groove length direction located horizontally is provided on the furnace top plate, the cover plate is set in the guide groove and the two form a guiding and limiting cooperation, and a first flexible rope and a second flexible rope are respectively connected to the two ends of the cover plate located in the groove length direction of the guide groove. The first and second flexible ropes extend in opposite directions from the two ends of the cover plate along the groove length direction of the guide groove, and a power unit drives the first flexible rope and pulls the cover plate to the open position that is misaligned with the sampling port or drives the second flexible rope and pulls the cover plate to the closed position when the sampling port is covered.

[0007] Compared with the prior art, the technical effect of this utility model is as follows: the cover plate of the sampling port is connected with a first flexible rope and a second flexible rope. The power unit can drive the first flexible rope and pull the cover plate to the open position that is misaligned with the sampling port, or drive the second flexible rope and pull the cover plate to the closed position when the sampling port is closed. This can realize the opening or closing operation of the sampling port without the need for the operator to manually open or close the cover, avoiding the safety hazards of close-range manual operation and ensuring the safety of the sampling port opening and closing operation. Attached Figure Description

[0008] Figure 1 This is a three-dimensional appearance schematic diagram of the present utility model;

[0009] Figure 2 for Figure 1 Enlarged view of part N in the image;

[0010] Figure 3 This is a diagram showing the sampling port in a closed state.

[0011] Figure 4 This is a schematic diagram showing the sampling port in the open state. Detailed Implementation

[0012] The following is in conjunction with the appendix Figure 1-4 The present invention will be further described in detail below, including related content:

[0013] A sampling port covering device for a smelting furnace includes a cover plate 20 on the sampling port A1 of the furnace top plate A. The surface of the cover plate 20 is fitted to the upper end surface of the furnace top plate A. The furnace top plate A has a guide groove 10 with its length direction in the horizontal direction. The cover plate 20 is placed in the guide groove 10 and the two form a guiding and limiting fit. The two ends of the cover plate 20 located in the length direction of the guide groove 10 are respectively connected to a first flexible rope 40A and a second flexible rope 40B. The first and second flexible ropes 40A and 40B extend in opposite directions from the two ends of the cover plate 20 along the length direction of the guide groove 10. A power unit 50 drives the first flexible rope 40A and pulls the cover plate 20 to an open position that is misaligned with the sampling port A1, or drives the second flexible rope 40B and pulls the cover plate 20 to a closed position when the sampling port A1 is covered.

[0014] In the above scheme, when it is necessary to open the sampling port A1, the power unit 50 drives the first flexible rope 40A, which pulls the cover plate 20 to slide along the guide groove 10 until the cover plate 20 is displaced to the open position that is offset from the sampling port A1. At this time, the sampling port A1 is in the open state, so that the sampling rod used for sampling can be inserted into the sampling port A1. Conversely, when it is necessary to close the sampling port A1, the power unit 50 drives the second flexible rope 40B, which pulls the cover plate 20 to slide in the opposite direction along the guide groove 10 until the cover plate 20 is displaced to the closed position when it covers the sampling port A1. At this time, the sampling port A1 is in the closed state. Through the design of this scheme, the opening or closing operation of the sampling port A1 can be realized without the operator manually opening or closing the cover 20, avoiding the safety hazards of close-range manual operation and ensuring the safety of the opening and closing operation of the sampling port A1.

[0015] It should be noted that, considering that the ambient temperature of the first flexible rope 40A and the second flexible rope 40B may be relatively high, the first flexible rope 40A and the second flexible rope 40B can be made of high temperature resistant and wear-resistant materials, such as steel wire, to ensure that the first flexible rope 40A and the second flexible rope 40B can be used normally.

[0016] Furthermore, fixed pulleys 30 are provided at both ends of the guide groove 10. The first flexible rope 40A and the second flexible rope 40B are respectively wound in the grooves of the opposite fixed pulleys 30. The free ends of the first flexible rope 40A and the second flexible rope 40B are guided by the fixed pulleys 30 and then connected to the power unit 50. The power unit 50 pulls the first flexible rope 40A while simultaneously releasing the second flexible rope 40B, or pulls the second flexible rope 40B while simultaneously releasing the first flexible rope 40A. In this scheme, the first flexible rope 40A and the second flexible rope 40B are connected to a common power unit 50. The power unit 50 pulls the first flexible rope 40A while simultaneously releasing the second flexible rope 40B, and vice versa. In this way, the cover plate 20 can be opened and closed normally using a single power source.

[0017] Specifically, the power unit 50 includes a motor, the output shaft of which is connected to a sprocket 51. The two ends of a chain segment 52 meshing with the sprocket 51 are respectively connected to a first flexible rope 40A and a second flexible rope 40B. The first flexible rope 40A, the second flexible rope 40B, and the chain segment 52 are arranged in a coplanar manner, and the direction of the motor's shaft is parallel to the direction of the pulley 30's wheel core. The motor drives the sprocket 51 to rotate, causing the chain segment 52 to perform transmission displacement. Since the two ends of the chain segment 52 are respectively connected to the first flexible rope 40A and the second flexible rope 40B, when the chain segment 52 is in forward transmission, one end pulls the first flexible rope 40A while the other end simultaneously relaxes the second flexible rope 40B; conversely, when the chain segment 52 is in reverse transmission, one end pulls the second flexible rope 40B while the other end simultaneously relaxes the first flexible rope 40A.

[0018] Essentially, the loop formed by the first flexible rope 40A, the cover plate 20, the second flexible rope 40B, and the chain segment 52 connected end to end rotates under the drive of the power unit 50. Here, the wrap angle of the chain segment 52 on the sprocket 51 must ensure that the chain segment 52 remains effectively engaged with the sprocket 51 when the cover plate 20 is moved to the open or closed position.

[0019] In addition, to facilitate the installation of the motor, which serves as the power unit 50, on the furnace top plate A, a bracket 60 is provided on the furnace top plate A. The motor is mounted on the bracket 60, and the height of the motor is higher than that of the cover plate 20. The coplanar planes of the first flexible rope 40A, the second flexible rope 40B, and the chain segment 52 are arranged at an angle to the furnace top plate A. Mounting the motor on the bracket 60 at a certain distance from the furnace top plate A provides a mounting position for the motor and also avoids the motor being too close to the furnace body and thus affected by the high temperature of the furnace body.

[0020] As a preferred option, such as Figure 3 and Figure 4 As shown, the cover plate 20 has a through hole 21 penetrating its body. The core direction of the through hole 21 is parallel to the core direction of the sampling port A1. When the cover plate 20 is in the open position, offset from the sampling port A1, the through hole 21 surrounds the outer periphery of the sampling port A1; when the cover plate 20 is in the closed position, covering the sampling port A1, the through hole 21 is offset from the sampling port A1. In this scheme, the opening and closing of the sampling port A1 is achieved by overlapping or offsetting the through hole 21 on the cover plate 20 with the sampling port A1. Specifically, when the cover plate 20 is in the closed position, covering the sampling port A1, Figure 3 The length of the plate portion on the middle cover plate 20 located to the right of the through hole 21 is greater than the diameter of the sampling port A1, and the coverage area of ​​this portion is greater than the hole area of ​​the sampling port A1, thereby ensuring that the sampling port A1 can be effectively covered.

Claims

1. A smelting furnace sampling port covering device, a cover plate (20) is arranged on a sampling port (A1) on a roof plate (A), the plate face of the cover plate (20) is arranged in abutment with the upper end face of the roof plate (A), a guide groove (10) is arranged on the roof plate (A) in a lengthwise direction of the groove and in a horizontal direction, the cover plate (20) is arranged in the guide groove (10) and the two constitute a guide and limiting fit, characterized in that: The first flexible rope (40A) and the second flexible rope (40B) are respectively connected to two ends of the cover plate (20) in the length direction of the guide groove (10), the first flexible rope (40A) and the second flexible rope (40B) are respectively reversely extended from the two ends of the cover plate (20) in the length direction of the guide groove (10), the power unit (50) drives the first flexible rope (40A) and pulls the cover plate (20) to the opening position which is arranged in the dislocation position of the sampling port (A1) or drives the second flexible rope (40B) and pulls the cover plate (20) to the closing position which covers the sampling port (A1).

2. The smelter sampling port covering apparatus of claim 1, wherein: The guide groove (10) is provided with a fixed pulley (30) at each end, the first flexible rope (40A) and the second flexible rope (40B) are respectively arranged in the wheel groove of the opposite fixed pulley (30), the free ends of the first flexible rope (40A) and the second flexible rope (40B) are guided by the fixed pulley (30) and are connected to the power unit (50) together, the power unit (50) pulls the first flexible rope (40A) at the same time and synchronously loosens the second flexible rope (40B) or pulls the second flexible rope (40B) at the same time and synchronously loosens the first flexible rope (40A).

3. The smelter sampling port covering apparatus of claim 2, wherein: The power unit (50) comprises a motor, the output shaft of the motor is connected with a chain wheel (51), the two ends of a chain segment (52) engaged with the chain wheel (51) are respectively connected with the first flexible rope (40A) and the second flexible rope (40B), the first flexible rope (40A), the second flexible rope (40B) and the chain segment (52) are coplanarly arranged and the shaft core direction of the motor is parallel to the wheel core direction of the fixed pulley (30).

4. The smelter sampling port covering apparatus defined in claim 3, characterized in that: The motor is installed on the support (60) provided on the furnace top plate (A) and the height of the motor is higher than that of the cover plate (20), the coplanar surface of the first flexible rope (40A), the second flexible rope (40B) and the chain segment (52) is arranged at an angle with the furnace top plate (A).

5. The smelter sampling port covering apparatus of claim 1 wherein: The cover plate (20) is provided with a through hole (21) penetrating through the plate body, the hole core direction of the through hole (21) is parallel to the hole core direction of the sampling port (A1), when the cover plate (20) is located at the opening position which is arranged in the dislocation position of the sampling port (A1), the through hole (21) is arranged around the outer periphery of the sampling port (A1); when the cover plate (20) is located at the closing position which covers the sampling port (A1), the through hole (21) is arranged in the dislocation position of the sampling port (A1).

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