Explosion-proof hole of ash bin of calcium carbide furnace gas purification device

Abstract

The utility model relates to the technical field of calcium carbide furnace gas purification devices, in particular to an explosion-proof hole of an ash bin of a calcium carbide furnace gas purification device, which comprises an explosion-proof hole and an explosion-proof hole cover, the explosion-proof hole is sleeved with the explosion-proof hole cover, an outlet of the explosion-proof hole is an inclined plane, and a connecting component used for connecting and supporting the explosion-proof hole cover is arranged on the explosion-proof hole cover. The connecting assembly comprises a support and a connecting plate, the support is hinged to the connecting plate, the support is welded to the anti-explosion hole, the connecting plate is in bolted connection with the anti-explosion hole cover, and a balancing weight is welded to the connecting plate, so that rain and snow are effectively prevented from entering the anti-explosion hole, and when the internal pressure of the anti-explosion hole is increased, the internal pressure of the anti-explosion hole can be quickly relieved, and meanwhile, the anti-explosion hole cover is reset.

Description

Technical Field

[0001] The utility model relates to the technical field of furnace gas purification devices for calcium carbide furnaces, in particular to an explosion-proof hole of an ash bin of a furnace gas purification device for a calcium carbide furnace. Background Art

[0002] The explosion-proof holes in the calcium carbide furnace gas purification device are set to prevent the accumulation of furnace gas generated in the furnace and cause an explosion. A large amount of calcium carbide furnace gas will be generated during the normal production process of the calcium carbide furnace. The gas contains a certain amount of carbon monoxide, dust, hydrogen, carbon dioxide, etc. This gas needs to be filtered through the calcium carbide furnace purification device, and the carbon monoxide with a concentration of about 75%-85% is used as the lime kiln calcined lime. In this process, the gas passes through the purified ash bin and the residual dust (purified ash) is left in the ash bin. The purified ash has a high fixed carbon content and can spontaneously combust after contacting the air. Therefore, an explosion-proof hole is installed on each purified ash bin to prevent flash explosions in the ash bin.

[0003] There is an explosion-proof hole installed above each existing ash storage bin. The exit of the existing explosion-proof hole is a flat open structure. In rainy and snowy weather, rainwater is easy to gather in the explosion-proof hole, which will cause corrosion and rupture of the explosion-proof membrane over a long period of time, causing carbon monoxide gas leakage. When carbon monoxide meets oxygen, it will form an explosive mixture in the air. When the explosion limit is reached, a flash explosion will occur. After the flash explosion, the explosion-proof membrane is damaged, allowing a large amount of oxygen to enter the ash bin, causing a secondary flash explosion, posing a huge safety risk. Utility Model Content

[0004] The purpose of the utility model is to provide an explosion-proof hole for the ash bin of a furnace gas purification device of a calcium carbide furnace, so as to solve the problem that in rainy and snowy weather, rainwater is easy to gather in the explosion-proof hole, and long-term retention will cause corrosion and rupture of the explosion-proof membrane. After the explosion-proof membrane is ruptured, a large amount of oxygen enters the purification system, resulting in the risk of flash explosion in the ash bin. After the flash explosion, the explosion-proof membrane is damaged, allowing a large amount of oxygen to enter the ash bin, causing a secondary flash explosion, which poses a great safety risk.

[0005] To achieve the above-mentioned purpose, the basic solution provided by the utility model is: an explosion-proof hole of the ash bin of a furnace gas purification device of a calcium carbide furnace, comprising an explosion-proof hole and an explosion-proof hole cover, the explosion-proof hole and the explosion-proof hole cover are socketed, the explosion-proof hole outlet is an inclined surface, and a connecting component for connecting the explosion-proof hole cover is provided on the explosion-proof hole.

[0006] The principle and beneficial effect of the utility model are as follows: the explosion-proof hole is designed as an inclined surface, and an explosion-proof hole cover is sleeved thereon to make the explosion-proof hole airtight, effectively preventing rain and snow from entering the explosion-proof hole; when the internal pressure of the explosion-proof hole increases, the connecting assembly supporting and connecting the explosion-proof hole cover can enable the explosion-proof hole cover to quickly release pressure and reset.

[0007] Option 2 is a preferred option of the basic option. The connecting assembly includes a bracket and a connecting plate. The bracket is hinged to the connecting plate. The bracket is welded to the explosion-proof hole. The connecting plate is bolted to the explosion-proof hole cover.

[0008] Option three is a preferred option of option two, in which a counterweight is fixedly connected to the connecting plate, and the counterweight can reset the connecting plate.

[0009] Option 4 is a preferred option of Option 2. A limit plate is fixedly connected to the bracket, and the limit plate prevents the connecting plate from flipping over and being unable to reset due to excessive internal pressure.

[0010] Option 5, which is a preferred option of Option 2, the surfaces of the explosion-proof holes, brackets and connecting plates are coated with anti-corrosion paint. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of an explosion-proof hole of an ash bin of a gas purification device for a calcium carbide furnace according to the utility model;

[0012] Figure 2 The utility model is a schematic diagram of the closed state of the explosion-proof hole of the ash bin of the gas purification device of the calcium carbide furnace. DETAILED DESCRIPTION

[0013] The present invention is further described in detail below through specific implementation modes:

[0014] The reference numerals in the drawings of the specification include: 1 explosion-proof hole, 2 bracket, 3 connecting plate, 4 explosion-proof hole cover, 5 counterweight block, 6 limit plate.

[0015] Example

[0016] like Figure 1 and Figure 2 As shown: an explosion-proof hole of an ash bin of a gas purification device for a calcium carbide furnace, comprising an explosion-proof hole 1 and an explosion-proof hole cover 4, the explosion-proof hole 1 and the explosion-proof hole cover 4 are sleeved, the outlet of the explosion-proof hole 1 is an inclined surface, a connecting component for connecting and supporting the explosion-proof hole cover 4 is provided on the explosion-proof hole 1, the connecting component comprises a bracket 2 and a connecting plate 3, the bracket 2 and the connecting plate 3 are hinged, the bracket 2 is welded to the explosion-proof hole 1, the connecting plate 3 is bolted to the explosion-proof hole cover 4, a counterweight 5 is welded to the connecting plate 4, a limiting plate 6 is welded to the bracket 2, and the surfaces of the explosion-proof hole 1, the bracket 2 and the connecting plate 3 are coated with anti-corrosion paint.

[0017] The implementation method of this embodiment is as follows: the outlet of the explosion-proof hole 1 is cut into an inclined surface, a bracket 2 is welded on the explosion-proof hole 1, a connecting plate 3 is hinged above the bracket 2, a limit plate 6 is welded above the bracket, and a counterweight 5 is welded on the top of the connecting plate 3, and the explosion-proof hole cover 4 is connected to the connecting plate 3 with bolts. After the explosion-proof hole 1 is completed as a whole, the explosion-proof hole 1 is welded to the top of the ash bin during the shutdown and maintenance time of the purification device to complete the installation of the explosion-proof hole 1.

[0018] When in use, because the outlet of the explosion-proof hole 1 is an inclined surface and the outlet of the explosion-proof hole 1 is covered with an explosion-proof hole cover 4 and a connecting plate 3, rain and snow can be effectively prevented from entering the explosion-proof hole 1, thereby avoiding corrosion of the explosion-proof membrane.

[0019] If a flash explosion occurs, the internal air pressure can push open the explosion-proof hole cover 4 to complete emergency pressure relief. At the same time, the counterweight block 5 on the connecting plate 3 resets the explosion-proof hole cover 4 through gravity to prevent a large amount of oxygen from entering the ash bin and avoid secondary flash explosion.

[0020] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An explosion-proof hole for the ash bin of a gas purification device for a calcium carbide furnace, characterized in that: The invention comprises an explosion-proof hole (1) and an explosion-proof hole cover (4); the explosion-proof hole (1) is sleeved with the explosion-proof hole cover (4); the outlet of the explosion-proof hole (1) is an inclined surface; and a connecting component for connecting the explosion-proof hole cover (4) is provided on the explosion-proof hole (1).

2. The explosion-proof hole of the ash bin of the gas purification device of the calcium carbide furnace according to claim 1 is characterized in that The connecting assembly comprises a bracket (2) and a connecting plate (3), the bracket (2) and the connecting plate (3) are hinged, the bracket (2) and the explosion-proof hole (1) are welded, and the connecting plate (3) and the explosion-proof hole cover (4) are bolted.

3. The explosion-proof hole of the ash bin of the gas purification device of the calcium carbide furnace according to claim 2 is characterized in that: A counterweight block (5) is fixedly connected to the connecting plate (3).

4. The explosion-proof hole of the ash bin of the gas purification device of calcium carbide furnace according to claim 2 is characterized in that: A limiting plate (6) is fixedly connected to the bracket (2).

5. The explosion-proof hole of the ash bin of the gas purification device of the calcium carbide furnace according to claim 2 is characterized in that The surfaces of the explosion-proof hole (1), the bracket (2) and the connecting plate (3) are coated with anti-corrosion paint.

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