Blast furnace working state detection device

Abstract

The utility model belongs to the technical field of blast furnace coal injection systems, and discloses a blast furnace working state detection device which comprises fixed channel steel, guide rods are fixed to the inner side of the fixed channel steel, rectangular grooves are formed in the upper and lower surfaces of the fixed channel steel, a fixed plate is fixed to one end of the fixed channel steel, and a proximity sensor is fixed to the lower end of the other end; the sliding block slides on the guide rod, the guide rod is sleeved with a first spring, a connecting rod is fixed to the lower end of the sliding block, and a push plate is fixed to the lower end of the connecting rod; a first electrode block is fixed to the upper end of the sliding block, two fixing blocks are fixed to the side face of the fixing plate, square limiting rods are slidably connected to the fixing blocks and sleeved with second springs, and second electrode blocks are fixed to the opposite ends of the square limiting rods; the alarm is fixed on the fixing plate, and the alarm is electrically connected with the first electrode block and the second electrode block. The distance between the detection plate and the proximity sensor is detected, a circuit of the first electrode block and a circuit of the second electrode block are connected, and the alarm gives an alarm to monitor whether materials exist on the conveying belt or not.

Description

Technical Field

[0001] The present disclosure belongs to the technical field of the blast furnace coal injection system, and specifically relates to a blast furnace working state detection device. Background Art

[0002] In the blast furnace coal injection feeding system, a speed measuring sensor feeds back the speed to a secondary meter. The secondary meter calculates the actual flow rate based on the feedback speed, compares it with the given flow rate on the screen, controls the frequency converter to give a signal, thereby controlling the speed of the coal feeder belt. The outlet of the coal feeder is connected to a mill.

[0003] When the speed measuring sensor fails or the connecting shaft breaks, the actual flow rate is 0. The operator may misjudge the coal cut-off. In fact, the coal feeder is running at 50HZ, which may cause a large amount of coal accumulation in the mill and shutdown, ultimately leading to coal cut-off in the blast furnace, damage to the mill motor, affecting production, and damaging equipment. Therefore, designing a detection device that can detect whether the coal feeder is out of coal is a problem that needs to be solved by the workers in this field. Utility Model Content

[0004] Aiming at the deficiencies of the prior art, the purpose of the present disclosure is to provide a blast furnace working state detection device. By detecting the distance between a detection plate and a proximity sensor, and the conduction of the circuit between the first electrode block and the second electrode block, and the alarm of the alarm, it monitors whether there is material on the conveyor belt, can quickly and accurately judge the coal cut-off fault, eliminates the situation of misjudgment by the operator, effectively ensures the stable operation of the equipment, reduces the economic losses caused by equipment failures, gives an alarm in the first time to shorten the accident handling time, improves the work efficiency of personnel for emergency repair, and ensures production.

[0005] The purpose of the present disclosure can be achieved by the following technical solutions:

[0006] A blast furnace working state detection device, comprising:

[0007] A fixed channel steel, a guide rod is fixedly connected along the length direction on the inner side of the fixed channel steel. Rectangular grooves are provided on both the upper surface and the lower surface of the fixed channel steel along its length direction. One end of the fixed channel steel is fixedly connected with a fixed plate, and a proximity sensor is fixedly connected to the lower end of the other end;

[0008] A slider, the slider is slidably connected to the guide rod. A first spring is sleeved on the guide rod between the slider and the proximity sensor. A connecting rod is fixedly connected to the lower end of the slider, and pushing plates are fixedly connected to both sides of the lower end of the connecting rod;

[0009] The upper end of the slider is fixedly connected with a first electrode block. Two fixed blocks are symmetrically fixedly connected to the upper and lower sides of the side surface of the fixed plate. A square limiting rod is slidably connected to the fixed block. A second spring is sleeved on the square limiting rod. Second electrode blocks are fixedly connected to the opposite ends of the two square limiting rods;

[0010] Alarm, the alarm fixing connector is on the fixing plate, and the alarm is electrically connected to the first electrode block and the second electrode block.

[0011] For the above technical solution, its principle and technical effects are as follows:

[0012] The push plate is above the conveyor belt. The conveyor belt drives the material to be conveyed in the direction of the proximity sensor. During the conveying process, the material pushes the push plate to move. Through the transmission of the connecting rod, the slider moves towards the proximity sensor. When there is a coal break situation, the elastic force of the first spring makes the slider move towards the fixing plate. At this time, the proximity sensor detects the distance information and sends out a coal break signal. At the same time, the first electrode block is inserted between the two second electrode blocks, making the circuit conduct, and the alarm gives an alarm.

[0013] Further, four rollers are arranged on each side of the slider. The rollers are rotatably connected to the side surface of the slider and are in rolling connection with the inner wall of the fixed channel steel.

[0014] Further, there is an included angle between the push plates on both sides of the lower end of the connecting rod, and the included angle is less than or equal to ninety degrees.

[0015] Further, a first support rod is fixedly connected to the lower end of the fixed channel steel away from the fixing plate, and the proximity sensor is fixedly connected to the lower end of the first support rod.

[0016] Further, a detection plate is fixedly connected to the connecting rod, and the detection plate and the proximity sensor are on the same axis.

[0017] Further, a second support rod is fixedly connected to the upper end of the slider. The second support rod extends upward out of the rectangular groove, and one end of the first electrode block is fixedly connected to the side surface of the upper end of the second support rod close to the fixing plate.

[0018] Further, one end of the first electrode block close to the second electrode block is a protruding acute-angle structure, and inclined surfaces are provided at one ends of the two second electrode blocks close to the first electrode block, and an included angle is formed between the two inclined surfaces.

[0019] Further, a retaining ring is fixedly connected to the end of the square limiting rod away from the second electrode block.

[0020] Further, an avoidance hole for avoiding the first electrode block is provided on the fixing plate.

[0021] Further, a plurality of mounting holes are provided on both sides of the fixing plate.

[0022] Explanations for the nouns, conjunctions or adjectives involved in the above technical solution are as follows:

[0023] A fixed connection means a connection where parts or components are fixed without any relative movement. It is divided into two types: detachable connection and non-detachable connection.

[0024] (1) A detachable connection uses screws, splines, wedge pins, etc. to fix components together. This connection can be disassembled during maintenance without damaging the parts. However, the specifications of the connecting parts used must be correct (such as the length of bolts, keys, and wedge pins), and they must be tightened appropriately.

[0025] (2) Non-detachable connections mainly refer to welding, riveting, and mortise fitting, etc. Since they need to be forged, sawed, or oxy-cut to be disassembled during maintenance or replacement, the spare parts generally cannot be used twice. At the same time, during connection, attention should be paid to process quality, technical inspection, and remedial measures (such as correction, polishing, etc.).

[0026] Threaded connection means a detachable connection that connects the connected parts together with threaded parts (or the threaded parts of the connected parts).

[0027] A sliding connection means that two objects are in contact but not fixed, and they can slide relative to each other.

[0028] A rotational connection means that the connection between parts allows the parts to rotate relative to each other.

[0029] Advantages of the present disclosure:

[0030] By detecting the distance between the detection plate and the proximity sensor, and the conduction of the circuit between the first electrode block and the second electrode block, the alarm gives an alarm to monitor whether there is material on the conveyor belt, which can quickly and accurately judge the coal-breaking fault, prevent the misjudgment of the operator, effectively ensure the stable operation of the equipment, reduce the economic losses caused by equipment failures, give an alarm immediately to shorten the accident handling time, improve the efficiency of the personnel's emergency repair work, and ensure production. Description of the drawings

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0032] Figure 1 is the overall structural schematic diagram of the embodiment of the present disclosure;

[0033] Figure 2 is the Figure 1 structural schematic diagram of part A in the embodiment of the present disclosure;

[0034] Figure 3 is the structural schematic diagram of the slider in the embodiment of the present disclosure. Detailed implementation manners

[0035] Next, in combination with the accompanying drawings in the embodiments of the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present disclosure.

[0036] In the description of the present disclosure, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating orientation or positional relationships are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present disclosure.

[0037] According to the concept of the present application, embodiments of the blast furnace working state detection device will be described herein in combination with Figures 1 to 3 Specifically, the blast furnace working state detection device is configured as a split structure, and it has components such as a fixed channel steel 1, a slider 6, and a connecting rod 8. Through the mutual cooperation of structures such as a proximity sensor 5, a first electrode block 10, a second electrode block 14, and an alarm 15, the push plate 9 is located above the conveyor belt. The conveyor belt drives the material to be conveyed in the direction of the proximity sensor 5. During the conveying process, the material pushes the push plate 9 to move. Through the transmission of the connecting rod 8, the slider 6 moves towards the proximity sensor 5. When a coal break situation occurs, the elastic force of the first spring 7 causes the slider 6 to move towards the fixed plate 4. At this time, the proximity sensor 5 detects the distance information from the connecting rod 8 and emits a coal break signal. At the same time, the first electrode block 10 is inserted between the two second electrode blocks 14, making the circuit conductive, and the alarm 15 emits an alarm.

[0038] As Figures 1-3 shown, the blast furnace working state detection device includes:

[0039] A fixed channel steel 1, a guide rod 2 is fixedly connected along the length direction on the inner side of the fixed channel steel 1. Rectangular grooves 3 are provided on both the upper surface and the lower surface of the fixed channel steel 1 along its length direction. One end of the fixed channel steel 1 is fixedly connected with a fixed plate 4, and a proximity sensor 5 is fixedly connected to the lower end of the other end;

[0040] A slider 6, the slider 6 is slidably connected to the guide rod 2. A first spring 7 is sleeved on the guide rod 2 between the slider 6 and the proximity sensor 5. The lower end of the slider 6 is fixedly connected with a connecting rod 8, and push plates 9 are fixedly connected to both sides of the lower end of the connecting rod 8;

[0041] The upper end of the slider 6 is fixedly connected with a first electrode block 10. On the side surface of the fixed plate 4, two fixed blocks 11 are symmetrically and fixedly connected up and down. A square limiting rod 12 is slidably connected to the fixed block 11. A second spring 13 is sleeved on the square limiting rod 12. The opposite ends of the two square limiting rods 12 are fixedly connected with second electrode blocks 14.

[0042] An alarm 15 is fixedly connected to the fixed plate 4. The alarm 15 is electrically connected to the first electrode block 10 and the second electrode blocks 14.

[0043] During use, the push plate 9 is located above the conveyor belt. The conveyor belt drives the material to be conveyed in the direction close to the proximity sensor 5. During the conveying process, the material pushes the push plate 9 to move. Through the transmission of the connecting rod 8, the slider 6 moves towards the proximity sensor 5. When a coal breakage occurs, the elastic force of the first spring 7 causes the slider 6 to move towards the fixed plate 4. At this time, the proximity sensor 5 detects the distance information from the connecting rod 8 and sends out a coal breakage signal. At the same time, the first electrode block 10 is inserted between the two second electrode blocks 14, making the circuit conductive, and the alarm 15 gives an alarm.

[0044] A proximity sensor is a general term for sensors that replace contact detection methods such as limit switches and are used for the purpose of detecting without contacting the detection object. It can convert the moving information and presence information of the detection object into electrical signals. In the detection methods of converting into electrical signals, it includes methods such as using eddy currents generated in the metal body of the detection object caused by electromagnetic induction, methods of capacitance change of electrical signals caused by the approach of the detection body, and methods using stones and guide switches.

[0045] A slider is a mold component that can slide perpendicular to the mold opening and closing direction or at a certain angle to the mold opening and closing direction during the mold opening action. When the product structure makes it impossible to normally demold the mold without using a slider, a slider has to be used. The material itself has appropriate hardness and wear resistance to withstand the friction during movement. The hardness of the cavity part or core part on the slider should be at the same level as other parts of the mold cavity and mold core.

[0046] A spring is a mechanical part that uses elasticity to work. A part made of elastic material deforms under the action of an external force and returns to its original state after the external force is removed. Also called "spring". Generally made of spring steel. Springs are complex and diverse in types. Classified by shape, there are mainly helical springs, scroll springs, leaf springs, special-shaped springs, etc.

[0047] In an embodiment of the present utility model, four rollers 17 are arranged on each side of the slider 6. The rollers 17 are rotatably connected to the side surface of the slider 6 and are in rolling connection with the inner wall of the fixed channel steel 1. This provides the stability of the movement of the slider 6 and reduces the friction force.

[0048] In an embodiment of the present utility model, there is an included angle between the push plates 9 on both sides of the lower end of the connecting rod 8, and the included angle is less than or equal to ninety degrees. When the material on the lower conveyor belt moves, on the one hand, it can push the push plate 9 to move, and on the other hand, it can avoid excessive resistance, which is not conducive to the conveying of the material.

[0049] In an embodiment of the present utility model, a first support rod 18 is fixedly connected to the lower end of the fixed channel steel 1 away from the fixed plate 4, and the proximity sensor 5 is fixedly connected to the lower end of the first support rod 18.

[0050] In an embodiment of the present utility model, a detection plate 19 is fixedly connected to the connecting rod 8, and the detection plate 19 and the proximity sensor 5 are on the same axis. This facilitates the detection of the proximity sensor 5.

[0051] In an embodiment of the present utility model, a second support rod 20 is fixedly connected to the upper end of the slider 6. The second support rod 20 extends upward out of the rectangular groove 3, and one end of the first electrode block 10 is fixedly connected to the side surface of the upper end of the second support rod 20 close to the fixed plate 4.

[0052] In an embodiment of the present utility model, one end of the first electrode block 10 close to the second electrode block 14 is a protruding acute-angle structure, and inclined surfaces are provided at the ends of the two second electrode blocks 14 close to the first electrode block 10, and an included angle is formed between the two inclined surfaces. This facilitates the insertion of the first electrode block 10 between the two second electrode blocks 14 to make the circuit conductive.

[0053] In an embodiment of the present utility model, a retaining ring 21 is fixedly connected to the end of the square limiting rod 12 away from the second electrode block 14. This prevents the square limiting rod 12 from detaching from the fixed block 11.

[0054] In an embodiment of the present utility model, an avoidance hole 22 for avoiding the first electrode block is provided on the fixed plate 4. This avoids movement interference.

[0055] In an embodiment of the present utility model, a plurality of mounting holes 23 are provided on both sides of the fixed plate 4. This facilitates fixing the entire device with bolts.

[0056] The following further describes the blast furnace working state detection device provided by the present utility model in conjunction with the drawings and embodiments.

[0057] The blast furnace working state detection device includes:

[0058] A fixed channel steel 1, a guide rod 2 is fixedly connected to the inner side of the fixed channel steel 1 along its length direction. Rectangular grooves 3 are provided on both the upper surface and the lower surface of the fixed channel steel 1 along its length direction. One end of the fixed channel steel 1 is fixedly connected to a fixed plate 4, and the lower end of the other end is fixedly connected to a proximity sensor 5;

[0059] Slider 6 is slidably connected to the guide rod 2. A first spring 7 is sleeved on the guide rod 2 between the slider 6 and the proximity sensor 5. A connecting rod 8 is fixedly connected to the lower end of the slider 6, and pushing plates 9 are fixedly connected to both sides of the lower end of the connecting rod 8;

[0060] A first electrode block 10 is fixedly connected to the upper end of the slider 6. Two fixing blocks 11 are symmetrically and fixedly connected to the upper and lower sides of the side surface of the fixing plate 4. A square limiting rod 12 is slidably connected to the fixing block 11. A second spring 13 is sleeved on the square limiting rod 12. Second electrode blocks 14 are fixedly connected to the opposite ends of the two square limiting rods 12;

[0061] Alarm 15 is fixedly connected to the fixing plate 4. The alarm 15 is electrically connected to the first electrode block 10 and the second electrode block 14.

[0062] Four rollers 17 are provided on each side of the slider 6. The rollers 17 are rotatably connected to the side surface of the slider 6 and are in rolling connection with the inner wall of the fixed channel steel 1.

[0063] An included angle exists between the pushing plates 9 on both sides of the lower end of the connecting rod 8, and the included angle is less than or equal to ninety degrees.

[0064] A first support rod 18 is fixedly connected to the lower end of the end of the fixed channel steel 1 away from the fixing plate 4. The proximity sensor 5 is fixedly connected to the lower end of the first support rod 18.

[0065] A detection plate 19 is fixedly connected to the connecting rod 8. The detection plate 19 and the proximity sensor 5 are on the same axis.

[0066] A second support rod 20 is fixedly connected to the upper end of the slider 6. The second support rod 20 extends upward out of the rectangular groove 3. One end of the first electrode block 10 is fixedly connected to the side surface of the upper end of the second support rod 20 close to the fixing plate 4.

[0067] One end of the first electrode block 10 close to the second electrode block 14 is a protruding acute-angle structure. Bevels are provided at the ends of the two second electrode blocks 14 close to the first electrode block 10, and an included angle is formed between the two bevels.

[0068] A retaining ring 21 is fixedly connected to the end of the square limiting rod 12 away from the second electrode block 14.

[0069] An avoidance hole 22 for avoiding the first electrode block is formed in the fixing plate 4.

[0070] A number of mounting holes 23 are formed on both sides of the fixing plate 4.

[0071] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0072] The above shows and describes the basic principles, main features and advantages of the present disclosure. Those skilled in the art of this industry should understand that the present disclosure is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present disclosure. Without departing from the spirit and scope of the present disclosure, the present disclosure will have various changes and improvements, and these changes and improvements all fall within the scope of the present disclosure claimed.

Claims

1. Blast furnace working condition detection device, characterized in that, Including: A fixed channel steel (1), a guide rod (2) is fixedly connected to the inner side of the fixed channel steel (1) along its length direction, rectangular grooves (3) are provided on both the upper surface and the lower surface of the fixed channel steel (1) along its length direction, one end of the fixed channel steel (1) is fixedly connected with a fixing plate (4), and a proximity sensor (5) is fixedly connected to the lower end of the other end; A slider (6), the slider (6) is slidably connected to the guide rod (2), a first spring (7) is sleeved on the guide rod (2) between the slider (6) and the proximity sensor (5), a connecting rod (8) is fixedly connected to the lower end of the slider (6), and pushing plates (9) are fixedly connected to both sides of the lower end of the connecting rod (8); A first electrode block (10) is fixedly connected to the upper end of the slider (6), two fixing blocks (11) are symmetrically fixedly connected to the upper and lower sides of the side surface of the fixing plate (4), a square limiting rod (12) is slidably connected to the fixing block (11), a second spring (13) is sleeved on the square limiting rod (12), and second electrode blocks (14) are fixedly connected to the opposite ends of the two square limiting rods (12); An alarm (15), the alarm (15) is fixedly connected to the fixing plate (4), and the alarm (15) is electrically connected to the first electrode block (10) and the second electrode block (14).

2. The blast furnace working state detection device according to claim 1, characterized in that, Four rollers (17) are arranged on each side of the slider (6), the rollers (17) are rotatably connected to the side surface of the slider (6), and the rollers (17) are in rolling connection with the inner wall of the fixed channel steel (1).

3. The blast furnace working condition detection device according to claim 2, characterized in that, There is an included angle between the pushing plates (9) on both sides of the lower end of the connecting rod (8), and the included angle is less than or equal to ninety degrees.

4. The blast furnace working condition detection device according to claim 3, characterized in that, A first support rod (18) is fixedly connected to the lower end of the end of the fixed channel steel (1) far from the fixing plate (4), and the proximity sensor (5) is fixedly connected to the lower end of the first support rod (18).

5. The blast furnace working state detection device according to claim 4, characterized in that, A detection plate (19) is fixedly connected to the connecting rod (8), and the detection plate (19) is on the same axis as the proximity sensor (5).

6. The blast furnace working state detection device according to claim 5, characterized in that A second support rod (20) is fixedly connected to the upper end of the slider (6), the second support rod (20) extends upward out of the rectangular groove (3), and one end of the first electrode block (10) is fixedly connected to the side surface of the upper end of the second support rod (20) close to the fixing plate (4).

7. The blast furnace working state detection device according to claim 6, characterized in that, One end of the first electrode block (10) close to the second electrode block (14) is a protruding acute angle structure, and inclined surfaces are provided at the ends of the two second electrode blocks (14) close to the first electrode block (10), and an included angle is formed between the two inclined surfaces.

8. The blast furnace working condition detection device according to claim 7, characterized in that, A retaining ring (21) is fixedly connected to the end of the square limiting rod (12) far from the second electrode block (14).

9. The blast furnace working condition detection device according to claim 1, characterized in that, An avoidance hole (22) for avoiding the first electrode block is provided on the fixing plate (4).

10. The blast furnace working state detection device according to claim 1, characterized in that, A plurality of mounting holes (23) are provided on both sides of the fixing plate (4).

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