Sealing device for calcium carbide furnace stock bin

Abstract

The utility model relates to the technical field of calcium carbide furnace bins, in particular to a sealing device for a calcium carbide furnace bin, which has the characteristic of improving practicability and comprises a bin, a material closing valve, a first fixing ring and a second fixing ring, a sliding groove is formed in the first fixing ring, another sliding groove is formed in the second fixing ring, and the first fixing ring and the second fixing ring are both connected with sliding plates in a sliding mode. A plurality of sliding grooves are formed in the first fixing ring, a plurality of springs are arranged in the sliding grooves, one ends of the springs are connected with the corresponding sliding plates, first sealing gaskets are arranged on one sides of the sliding plates in the sliding grooves in the first fixing ring, and a plurality of second sealing gaskets are arranged on the lower portions of the first sealing gaskets; third sealing gaskets are arranged on one sides of the sliding plates in the sliding grooves in the first fixing ring, a plurality of clamping grooves are formed in the upper portions of the third sealing gaskets, and the clamping grooves and the corresponding second sealing gaskets are arranged in a clamped mode.

Description

Technical Field

[0001] The utility model relates to the technical field of calcium carbide furnace silo, in particular to a calcium carbide furnace silo sealing device. Background Art

[0002] As we all know, the calcium carbide furnace equipment in the calcium carbide industry operates for a long period of time. The originally designed silo feeding system installs a closing valve at the bottom of the silo. During the operation of the calcium carbide furnace equipment, due to factors such as uneven material feeding, pressure fluctuations in the furnace, and downward movement of the material layer structure, the furnace gas overflows, resulting in frequent carbon monoxide gas overflow from the closing valve at the bottom of the silo, powdered raw materials spraying out, etc., causing the carbon monoxide content and dust content in the space where the closing valve is located to seriously exceed the standard in a short period of time, and failing to meet the safety operation requirements, seriously affecting the occupational health of operators.

[0003] The patent with application number CN202321411766.X discloses a sealing device for a calcium carbide furnace silo, which includes a silo, a closing valve, a front mounting half ring, a rear mounting half ring, a front sealing half ring, a rear sealing half ring and a sealing box. A closing valve is provided at the lower part of the silo, a front mounting half ring is provided at the outer side of the front part of the closing valve, and a rear mounting half ring is provided at the outer side of the rear part of the closing valve. The rear end of the front mounting half ring and the front end of the rear mounting half ring are detachably fixed together; a front sealing half ring located above the closing valve is fixedly installed on the inner side of the upper end of the front mounting ring.

[0004] Although the device has the effect of sealing the closed material valve, the front sealing half ring and the rear sealing half ring of the device are fixed. The temperature of the calcium carbide furnace silo sealing device will increase during operation and decrease during shutdown. At this time, the front sealing half ring and the rear sealing half ring will experience the physical phenomenon of thermal expansion and contraction during the temperature change. When the front sealing half ring and the rear sealing half ring expand due to heat, the front mounting half ring and the rear mounting half ring do not provide expansion space for the front sealing half ring and the rear sealing half ring. Therefore, the front sealing half ring and the rear sealing half ring extend from the area between the front sealing half ring, the rear sealing half ring and the silo to the outside. When the sealing half ring and the rear sealing half ring shrink due to cold, their own volume decreases, resulting in a gap between the front sealing half ring, the rear sealing half ring and the silo, resulting in a reduced sealing effect. Therefore, the practicality is not very good and there is room for improvement. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a calcium carbide furnace silo sealing device, which has the characteristic of improving practicability.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a calcium carbide furnace silo sealing device, comprising a first fixed ring and a second fixed ring, the first fixed ring is provided with a slide groove inside, the second fixed ring is provided with another slide groove inside, and both are slidably connected with a sliding plate, several of the slide grooves are provided with several springs, one end of several of the springs are connected to the corresponding sliding plates, a first sealing gasket is provided on one side of the sliding plate in the slide groove in the first fixed ring, several second sealing gaskets are provided at the lower part of several of the first sealing gaskets, a third sealing gasket is provided on one side of the sliding plate in the slide groove in the first fixed ring, several clamping grooves are provided on the upper part of several of the third sealing gaskets, and all are clamped with the corresponding second sealing gaskets.

[0009] Furthermore, the lower end surface of the first sealing gasket is in contact with the upper end surface of the third sealing gasket, and the side wall of the third sealing gasket is in contact with the side walls of the second sealing gaskets.

[0010] Furthermore, the front and rear end surfaces of the first sealing gasket are in contact with the front and rear end surfaces of the corresponding slide groove, and the front and rear end surfaces of the second sealing gasket are in contact with the front and rear end surfaces of the corresponding slide groove.

[0011] Furthermore, the exteriors of the plurality of springs are coated with an anti-corrosion coating, and the plurality of springs are spaced apart from one another.

[0012] Preferably, the plurality of sliding plates are all made of metal material and are coated with an anti-corrosion coating.

[0013] Preferably, a plurality of threaded holes are provided on both sides of the first fixing ring and the second fixing ring, and both are threadedly connected with bolts.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a calcium carbide furnace silo sealing device, which has the following beneficial effects:

[0016] The calcium carbide furnace silo sealing device has a volume increase when the first sealing gasket, the second sealing gasket and the third sealing gasket expand due to heat, which compresses the sliding plate to slide into the sliding groove and compresses the spring to provide sufficient space for the expansion of the first sealing gasket, the second sealing gasket and the third sealing gasket. When the first sealing gasket, the second sealing gasket and the third sealing gasket shrink due to cold, the volume decreases. At this time, the compressed spring begins to stretch, pushing the sliding plate to slide in the sliding groove, and then pushing the first sealing gasket, the second sealing gasket and the third sealing gasket to move, so that the first sealing gasket, the second sealing gasket and the third sealing gasket are tightly against the side wall of the closing valve, ensuring the sealing performance, thereby improving the practicality to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the first sealing gasket, the second sealing gasket and the third sealing gasket of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the first fixing ring, the slide groove and the spring of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the sliding plate, spring, first sealing gasket and second sealing gasket of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the third sealing pad and the card slot of the utility model;

[0022] Figure 6 For this utility model Figure 1 A schematic diagram of the structure partially enlarged at position A shown in FIG.

[0023] Figure 7 It is a schematic diagram of the coordination of the first fixing ring, the second fixing ring, the material bin and the closing valve of the utility model.

[0024] In the figure: 1. first fixing ring; 2. second fixing ring; 3. slide groove; 4. sliding plate; 5. spring; 6. first sealing gasket; 7. second sealing gasket; 8. third sealing gasket; 9. slot; 10. threaded hole; 11. bolt; 12. silo; 13. closing valve. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-7The utility model discloses a calcium carbide furnace silo sealing device, comprising a first fixing ring 1 and a second fixing ring 2. Both sides of the first fixing ring 1 and the second fixing ring 2 are provided with a plurality of threaded holes 10, and both are threadedly connected with bolts 11. By screwing the bolts 11 into the plurality of threaded holes 10, the first fixing ring 1 and the second fixing ring 2 can be fixed together to seal a closing valve 13 of a calcium carbide furnace silo 12. A slide groove 3 is provided inside the first fixing ring 1, and another slide groove 3 is provided inside the second fixing ring 2, and both are slidably connected with a sliding plate 4. The sliding plate 4 slides in the slide groove 3. The plurality of sliding plates 4 are all made of metal materials and are coated with an anti-corrosion coating. The metal materials have good quality and a long service life. The protective coating can improve High anti-corrosion effect, several springs 5 ​​are arranged in several slide grooves 3, one end of several springs 5 ​​are connected to the corresponding sliding plate 4, when the sliding plate 4 slides in the slide groove 3, several springs 5 ​​are compressed and contracted, several springs 5 ​​provide reaction force to the sliding plate 4, the outside of several springs 5 ​​are coated with anti-corrosion coating to improve the anti-corrosion effect of springs 5, several springs 5 ​​are arranged with intervals to facilitate the installation of springs 5, a first sealing gasket 6 is arranged on one side of the sliding plate 4 in the slide groove 3 in the first fixing ring 1, several second sealing gaskets 7 are arranged at the lower part of several first sealing gaskets 6, a third sealing gasket 8 is arranged on one side of the sliding plate 4 in the slide groove 3 in the first fixing ring 1, the first sealing gasket 6, the second sealing gasket 7 and the third sealing gasket 8 are attached to each other 3, and the spring 5 is stretched out. At the same time, the spring 5 still provides a reaction force to the sliding plate 4, and the reaction force acts on the first sealing gasket 6, the second sealing gasket 7 and the third sealing gasket 8, so that the first sealing gasket 6, the second sealing gasket 7 and the third sealing gasket 8 are fitted to the outer side of the closing valve 13. When the first sealing gasket 6, the second sealing gasket 7 and the third sealing gasket 8 are cooled and contracted, the corresponding sliding plates are driven to slide in the sliding groove 3, and several springs 5 ​​are stretched out. At the same time, the spring 5 still provides a reaction force to the sliding plate 4, and the reaction force acts on the first sealing gasket 6, the second sealing gasket 7 and the third sealing gasket 8. The second sealing gasket 7 and the third sealing gasket 8 make the first sealing gasket 6, the second sealing gasket 7 and the third sealing gasket 8 fit on the outer side of the closing valve 13 to prevent the first sealing gasket 6, the second sealing gasket 7 and the third sealing gasket 8 from no longer fitting on the outer side of the closing valve 13 when the first sealing gasket 6, the second sealing gasket 7 and the third sealing gasket 8 expand and contract due to heat. Several card grooves 9 are arranged on the upper parts of several third sealing gaskets 8, and they are all card-connected with the corresponding second sealing gasket 7. The card grooves 9 of the second sealing gasket 7 and the third sealing gasket 8 are card-connected together, so that the first sealing gasket 6 and the third sealing gasket 8 can be connected together to prevent the first sealing gasket 6 and the third sealing gasket 8 from separating when the three expand. The lower end face of the first sealing gasket 6 fits with the upper end face of the third sealing gasket 8 to improve the sealing performance between the two.The side wall of the third gasket 8 is in contact with the side walls of the second gaskets 7 to improve the sealing performance between the two. The front and rear end faces of the first gasket 6 are in contact with the front and rear end faces of the corresponding chute 3 to improve the sealing performance between the two. The front and rear end faces of the second gasket 7 are in contact with the front and rear end faces of the corresponding chute 3 to improve the sealing performance between the two.

[0027] To sum up, when the calcium carbide furnace silo sealing device is in use, the staff puts the first fixing ring 1 on the outer side of the closing valve 13, so that the inner walls of the first sealing gasket 6 and the second sealing gasket 7 are fitted on the outer side of the closing valve 13, and then puts the first fixing ring 1 on the outer side of the closing valve 13, and at the same time slowly inserts the second sealing gasket 7 into the inside from the side port of the slot 9 of the third sealing gasket 8. When the front and rear end faces of the first fixing ring 1 and the front and rear end faces of the second fixing ring 2 are flush, the bolt 11 is screwed into the threaded hole 10 to fix the first fixing ring 1 and the second fixing ring 2 together. When the first fixing ring 1 and the second fixing ring 2 are close to each other, several springs 5 ​​contract to provide reaction force to the sliding plate 4, the first sealing gasket 6, the second sealing gasket 7 and the third sealing gasket 8, so that the first sealing gasket 6, the second sealing gasket 7 and the third sealing gasket 8 are tightly pressed against the outer side of the closing valve 13. During use, when the first sealing gasket 6, the second sealing gasket 7 and the third sealing gasket 8 expand due to heat, they will drive the corresponding slide plates to slide in the slide groove 3 and compress the corresponding spring 5 to contract. At this time, the spring 5 provides a reaction force to the sliding plate 4, and the reaction force acts on the first sealing gasket 6, the second sealing gasket 7 and the third sealing gasket 8, so that the first sealing gasket 6, the second sealing gasket 7 and the third sealing gasket 8 are fitted to the outside of the closing valve 13. When the first sealing gasket 6, the second sealing gasket 7 and the third sealing gasket 8 shrink due to cold, they will drive the corresponding slide plates to slide in the slide groove 3, and several springs 5 ​​will stretch out. At the same time, the spring 5 still provides a reaction force to the sliding plate 4, and the reaction force acts on the first sealing gasket 6, the second sealing gasket 7 and the third sealing gasket 8, so that the first sealing gasket 6, the second sealing gasket 7 and the third sealing gasket 8 are fitted to the outside of the closing valve 13 to seal the closing valve 13.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing device for a calcium carbide furnace silo, comprising a silo (12), a closing valve (13), a first fixing ring (1) and a second fixing ring (2), characterized in that: A sliding groove (3) is provided inside the first fixing ring (1), another sliding groove (3) is provided inside the second fixing ring (2), and both are slidably connected with a sliding plate (4), a plurality of springs (5) are provided inside the plurality of sliding grooves (3), one end of each of the plurality of springs (5) is connected with the corresponding sliding plate (4), a first sealing gasket (6) is provided on one side of the sliding plate (4) in the sliding groove (3) in the first fixing ring (1), a plurality of second sealing gaskets (7) are provided below the plurality of the first sealing gaskets (6), a third sealing gasket (8) is provided on one side of the sliding plate (4) in the sliding groove (3) in the first fixing ring (1), a plurality of clamping grooves (9) are provided on the upper parts of the plurality of the third sealing gaskets (8), and each of the third sealing gaskets (8) is clamped with the corresponding second sealing gasket (7).

2. A calcium carbide furnace silo sealing device according to claim 1, characterized in that: The lower end surface of the first sealing gasket (6) is in contact with the upper end surface of the third sealing gasket (8), and the side wall of the third sealing gasket (8) is in contact with the side walls of the plurality of second sealing gaskets (7).

3. A calcium carbide furnace silo sealing device according to claim 2, characterized in that: The front and rear end surfaces of the first sealing gasket (6) are in contact with the front and rear end surfaces of the corresponding slide groove (3), and the front and rear end surfaces of the second sealing gasket (7) are in contact with the front and rear end surfaces of the corresponding slide groove (3).

4. A calcium carbide furnace silo sealing device according to claim 3, characterized in that: The exteriors of the plurality of springs (5) are coated with an anti-corrosion coating, and the plurality of springs (5) are spaced apart from one another.

5. A calcium carbide furnace silo sealing device according to claim 4, characterized in that: The plurality of sliding plates (4) are all made of metal material and are coated with an anti-corrosion coating.

6. A calcium carbide furnace silo sealing device according to claim 5, characterized in that: A plurality of threaded holes (10) are provided on both sides of the first fixing ring (1) and the second fixing ring (2), and both are threadedly connected with bolts (11).

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