Automatic pressure release measuring device for calcium carbide furnace

Abstract

The utility model discloses an automatic pressure release measuring device for a calcium carbide furnace, which relates to the technical field of calcium carbide furnaces and comprises a closed smoke hood, an air pressure tank is fixedly mounted at the top end of the closed smoke hood, an air inlet pipe is communicated with the top end of the closed smoke hood, and an air pressure adjusting component is arranged in the air pressure tank; the air pressure adjusting assembly comprises a fixed partition plate fixedly installed in the air pressure box, the fixed partition plate divides the air pressure box into a first air cavity close to the air inlet pipe and a second air cavity away from the air inlet pipe, an adjusting disc is movably arranged in the second air cavity, and a through air hole is formed in the center of the fixed partition plate. By arranging the air pressure adjusting assembly, under the sealing condition, a sealing rubber pad is attached to a fixed partition plate, a servo motor works, a rotating shaft drives a threaded sleeve, the threaded sleeve drives an adjusting disc to move, and air in a first air cavity enters a second air cavity through a through air hole; the gas flow rate is adjusted by adjusting the distance between the sealing rubber pad and the fixed partition plate.

Description

Technical Field

[0001] The utility model relates to the technical field of calcium carbide furnaces, in particular to an automatic measuring and pressing device for a calcium carbide furnace. Background Art

[0002] In the production of calcium carbide, the closed calcium carbide furnace hood collects the carbon monoxide produced during the calcium carbide reaction and transports it to the recycling device (such as lime kiln, gas engine, etc.) through pipelines. The furnace pressure in the calcium carbide furnace hood is required to be guaranteed at 5±10Pa. However, in the actual production of calcium carbide enterprises, the furnace conditions often fluctuate due to unstable furnace pressure. In particular, the collapse of the outer melting hole of the electrode is more likely to cause a huge change in the furnace pressure of the calcium carbide furnace, which not only affects the normal production operation, causing production fluctuations and product quality, but also brings great safety hazards to production. Therefore, the furnace pressure device of the calcium carbide furnace is very important. Reducing the measurement error of the electrode pressure release is conducive to ensuring safe production and improving production efficiency.

[0003] Traditional smoke hoods release furnace pressure through explosion-proof valves in emergency situations (furnace pressure greater than 50Pa), and the furnace needs to be stopped and the explosion-proof valve plate needs to be replaced. This not only affects production but also poses a safety risk, and does not play a role in continuously regulating furnace pressure. Therefore, it is necessary to propose an automatic pressure measurement and release device for calcium carbide furnaces. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an automatic measuring and pressing device for a calcium carbide furnace.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An automatic measuring pressure release device for a calcium carbide furnace comprises a closed smoke hood, a pressure box is fixedly installed on the top of the closed smoke hood, an air intake pipe is connected to the top of the closed smoke hood, and a pressure regulating component is arranged in the pressure box;

[0007] The air pressure regulating assembly includes a fixed partition fixedly installed in the air pressure box, the fixed partition divides the air pressure box into a first air cavity close to the air intake pipe and a second air cavity away from the air intake pipe, an adjusting disk is movably arranged in the second air cavity, and a through air hole is opened in the center of the fixed partition.

[0008] Preferably, a sealing rubber pad is fixedly installed on one side of the adjusting disk close to the fixed partition, the fixed partition, the adjusting disk and the sealing rubber pad are coaxially arranged, and the diameter of the sealing rubber pad is larger than the diameter of the through-hole;

[0009] The adjusting disk is provided with an air outlet in an annular shape near the outer side, a sliding block is symmetrically fixedly installed on the outer side wall of the adjusting disk, and a sliding groove arranged in the second air cavity is symmetrically opened on the inner side wall of the air pressure box;

[0010] It is used to adjust the amount of gas transported from the first air cavity to the second air cavity. In the sealed state, the sealing rubber pad fits with the fixed partition, so that the sealing rubber pad seals the air outlet. When the adjustment disk moves, the sliding block moves in the sliding groove, so that the sealing rubber pad fits with the fixed partition, so that the gas in the first air cavity enters the second air cavity through the through hole. The gas flow rate is adjusted by adjusting the distance between the sealing rubber pad and the fixed partition.

[0011] Preferably, a threaded sleeve is coaxially fixedly installed on one side of the adjusting disk away from the sealing rubber pad, a threaded rod is rotatably installed in the threaded sleeve, a rotating shaft is coaxially fixedly installed on one end of the threaded rod away from the adjusting disk, and the other end of the rotating shaft rotates through the outer wall of the air pressure box;

[0012] A servo motor is fixedly mounted on the outer wall of the air pressure box, the output shaft of the servo motor is coaxially fixedly connected with a driving gear, the driving gear is meshed with a driven gear, the driven gear is coaxially fixedly connected with the rotating shaft, and an air outlet pipe connecting the second air cavity with the outside is arranged at the top of the air pressure box;

[0013] It is used to drive the adjusting disk to move, the servo motor works, the servo motor drives the driving gear to rotate, the driving gear drives the driven wheel to rotate, the driven wheel drives the rotating shaft to rotate, the rotating shaft drives the threaded sleeve, so that the threaded sleeve drives the adjusting disk to move.

[0014] Preferably, an air-distributing plate is fixedly installed in the closed smoke hood, an air pressure detection device is fixedly installed at the center of the bottom end of the air-distributing plate, a plurality of air-distributing holes are evenly and equidistantly opened on the air-distributing plate, and the air-distributing holes are arranged on the outside of the air-distributing plate;

[0015] It is used to ensure uniform distribution of gas at the top of the closed fume hood. The gas passes through the uniform plate from the uniform holes to ensure uniform distribution of gas.

[0016] The utility model has the following beneficial effects:

[0017] By setting the air pressure regulating component, in the sealed state, the sealing rubber pad is fitted with the fixed partition, so that the sealing rubber pad seals the air outlet, and the servo motor works, the servo motor drives the driving gear to rotate, the driving gear drives the driven wheel to rotate, the driven wheel drives the rotating shaft to rotate, the rotating shaft drives the threaded sleeve, so that the threaded sleeve drives the adjusting disk to move, when the adjusting disk moves, the sliding block moves in the sliding groove, so that the sealing rubber pad is fitted with the fixed partition, so that the gas in the first air cavity enters the second air cavity through the through hole, and the gas flow rate is adjusted by adjusting the distance between the sealing rubber pad and the fixed partition. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is a schematic diagram of the external structure of an automatic measuring and pressing device for a calcium carbide furnace proposed by the utility model;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the enclosed smoke hood of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the air pressure box of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the driving gear and the driven gear of the utility model.

[0022] In the figure: 1. closed smoke hood; 11. air uniforming plate; 12. air pressure detection device; 13. air uniforming hole; 2. air pressure box; 3. air inlet pipe; 4. air pressure regulating assembly; 41. fixed partition; 42. first air cavity; 43. second air cavity; 44. regulating plate; 45. through air hole; 46. sealing rubber pad; 47. air outlet; 48. sliding block; 49. sliding groove; 410. threaded sleeve; 411. threaded rod; 412. rotating shaft; 413. servo motor; 414. driving gear; 415. driven gear; 416. air outlet pipe. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] Reference Figure 1-4 , an automatic measuring pressure release device for a calcium carbide furnace, comprising a closed smoke hood 1, a pressure box 2 is fixedly installed on the top of the closed smoke hood 1, an air intake pipe 3 is connected to the top of the closed smoke hood 1, and a pressure regulating component 4 is arranged in the pressure box 2;

[0026] The air pressure regulating assembly 4 includes a fixed partition 41 fixedly installed in the air pressure box 2, the fixed partition 41 divides the air pressure box 2 into a first air cavity 42 close to the air intake pipe 3 and a second air cavity 43 away from the air intake pipe 3, an adjusting disk 44 is movably arranged in the second air cavity 43, and a through air hole 45 is opened in the center of the fixed partition 41.

[0027] A sealing rubber pad 46 is fixedly installed on one side of the adjusting disk 44 close to the fixed partition 41 . The fixed partition 41 , the adjusting disk 44 and the sealing rubber pad 46 are coaxially arranged. The diameter of the sealing rubber pad 46 is larger than the diameter of the through-hole 45 .

[0028] An air outlet 47 is provided in an annular shape near the outer side of the regulating disk 44 , a sliding block 48 is symmetrically fixedly mounted on the outer side wall of the regulating disk 44 , and a sliding groove 49 arranged in the second air cavity 43 is symmetrically opened on the inner side wall of the air pressure box 2 .

[0029] A threaded sleeve 410 is coaxially fixedly installed on one side of the adjusting disk 44 away from the sealing rubber pad 46, and a threaded rod 411 is rotatably installed in the threaded sleeve 410. A rotating shaft 412 is coaxially fixedly installed on one end of the threaded rod 411 away from the adjusting disk 44, and the other end of the rotating shaft 412 rotates and penetrates the outer wall of the air pressure box 2.

[0030] A servo motor 413 is fixedly installed on the outer wall of the air pressure box 2, and the output shaft of the servo motor 413 is coaxially fixedly connected with a driving gear 414, and the driving gear 414 is meshed with a driven gear 415. The driven gear 415 is coaxially fixedly connected with the rotating shaft 412, and an air outlet pipe 416 connecting the second air cavity 43 with the outside is provided at the top of the air pressure box 2.

[0031] An air-distributing plate 11 is fixedly installed in the closed smoke hood 1 , an air pressure detection device 12 is fixedly installed at the bottom center of the air-distributing plate 11 , a plurality of air-distributing holes 13 are evenly and equidistantly opened on the air-distributing plate 11 , and the air-distributing holes 13 are arranged outside the air-distributing plate 11 .

[0032] In the utility model, the air pressure detection device 12 detects the air pressure in the closed smoke hood 1, and the gas passes through the air uniforming plate 11 from the air uniforming hole 13 to ensure that the gas is evenly distributed. In the sealed state, the sealing rubber pad 46 fits with the fixed partition 41, so that the sealing rubber pad 46 seals the air outlet 47. When the air pressure detection device 12 detects that the air pressure is too high, the servo motor 413 works, the servo motor 413 drives the driving gear 414 to rotate, the driving gear 414 drives the driven rotating wheel 415 to rotate, and the driven rotating wheel 415 drives the rotating shaft 4 12 rotates, the rotating shaft 413 drives the threaded sleeve 410, so that the threaded sleeve 410 drives the adjusting disk 44 to move. When the adjusting disk 44 moves, the sliding block 48 moves in the sliding groove 49, so that the sealing rubber pad 46 fits with the fixed partition 41, so that the gas in the first air cavity 42 enters the second air cavity 43 through the through hole 45, and the gas flow rate is adjusted by adjusting the distance between the sealing rubber pad 46 and the fixed partition 41. The gas in the closed smoke hood 1 enters the air pressure box 2 through the air inlet pipe 3 and is discharged through the air outlet pipe 416.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for automatically measuring and releasing pressure in a calcium carbide furnace, comprising a closed smoke hood (1), characterized in that: A pressure box (2) is fixedly mounted on the top of the enclosed smoke hood (1), an air inlet pipe (3) is connected to the top of the enclosed smoke hood (1), and a pressure regulating component (4) is arranged inside the pressure box (2); The air pressure regulating assembly (4) comprises a fixed partition (41) fixedly installed in the air pressure box (2), wherein the fixed partition (41) divides the air pressure box (2) into a first air cavity (42) close to the air intake pipe (3) and a second air cavity (43) away from the air intake pipe (3), wherein an adjusting disk (44) is movably arranged in the second air cavity (43), and a through air hole (45) is provided in the center of the fixed partition (41).

2. The automatic measuring and releasing device for calcium carbide furnace according to claim 1 is characterized in that: A sealing rubber pad (46) is fixedly mounted on one side of the adjustment disk (44) close to the fixed partition (41); the fixed partition (41), the adjustment disk (44) and the sealing rubber pad (46) are coaxially arranged; and the diameter of the sealing rubber pad (46) is greater than the diameter of the through-hole (45).

3. The automatic measuring and releasing device for calcium carbide furnace according to claim 2 is characterized in that: The regulating disk (44) is provided with an air outlet hole (47) in a ring shape near the outer side, a sliding block (48) is symmetrically fixedly installed on the outer side wall of the regulating disk (44), and a sliding groove (49) arranged in the second air cavity (43) is symmetrically opened on the inner side wall of the air pressure box (2).

4. The automatic measuring and releasing device for calcium carbide furnace according to claim 3 is characterized in that: A threaded sleeve (410) is coaxially fixedly installed on one side of the adjustment disk (44) away from the sealing rubber pad (46), a threaded rod (411) is rotatably installed in the threaded sleeve (410), a rotating shaft (412) is coaxially fixedly installed on one end of the threaded rod (411) away from the adjustment disk (44), and the other end of the rotating shaft (412) rotates through the outer wall of the air pressure box (2).

5. The automatic measuring and releasing device for calcium carbide furnace according to claim 4 is characterized in that: A servo motor (413) is fixedly mounted on the outer wall of the air pressure box (2); the output shaft of the servo motor (413) is coaxially fixedly connected to a driving gear (414); the driving gear (414) is meshed with a driven gear (415); the driven gear (415) is coaxially fixedly connected to the rotating shaft (412); and an air outlet pipe (416) is provided at the top of the air pressure box (2) for connecting the second air cavity (43) with the outside.

6. The automatic measuring and releasing device for calcium carbide furnace according to claim 1 is characterized in that: An air-distributing plate (11) is fixedly installed in the closed smoke hood (1), an air pressure detection device (12) is fixedly installed at the center of the bottom end of the air-distributing plate (11), a plurality of air-distributing holes (13) are evenly and equidistantly provided on the air-distributing plate (11), and the air-distributing holes (13) are arranged on the outside of the air-distributing plate (11).

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