CN-115900371-B - Calcium carbide waste heat recovery system

CN115900371BCN 115900371 BCN115900371 BCN 115900371BCN-115900371-B

Abstract

The invention relates to the technical field of calcium carbide production systems, in particular to a calcium carbide waste heat recovery system, which comprises a calcium carbide furnace, a rail, a first tunnel, a first heat exchanger and a second heat exchanger, wherein a train running along the rail is arranged on the rail, the rail comprises a discharge point, a calcium carbide pot carried by the train is discharged at the discharge point, the part of the rail between a furnace mouth of the calcium carbide furnace and the discharge point passes through the first tunnel, the first tunnel is provided with a first air inlet, the first air inlet of the first tunnel is communicated with an air inlet end of the first heat exchanger, the crushing system comprises a crushing device used for crushing and shaping molten calcium carbide, and the crushing device comprises a crushing mechanism, the crushing mechanism comprises a frame, a crushing groove and a crushing head, and the crushing groove is arranged on the frame. The invention can realize the purpose of waste heat recovery in the running process of the train carrying calcium carbide and waste heat recovery in the crushing process.

Inventors

JIN KANZHI
HE JIA
JIN XUBIAO

Assignees

杭州贵能森节能技术有限公司

Dates

Publication Date: 20260512
Application Date: 20221202

Claims (9)

1. The utility model provides a carbide waste heat recovery system, includes carbide stove and track, is equipped with the train of following the track operation on the track, the track includes out the pot point, and the carbide pot that the train held in the palm was carried is discharged at out the pot point, waste heat recovery system still includes: the part of the track between the furnace mouth of the calcium carbide furnace and the pan outlet point passes through the first tunnel, and the first tunnel is provided with a first air guiding port; The first air inlet of the first tunnel is communicated with the air inlet end of the first heat exchanger; the crushing system comprises a crushing device for crushing and shaping molten calcium carbide, the crushing device comprises a crushing mechanism, the crushing mechanism comprises a frame, a crushing groove arranged on the frame and a crushing head, the crushing head comprises a die head and a lifting mechanism for driving the die head to move along the Z-axis direction, a plurality of mutually independent grids are arranged at the bottom of the die head, the crushing groove comprises a first groove wall and a second groove wall which are oppositely arranged along the Y-axis direction, a fan is arranged on the first groove wall, a vent hole is arranged on the second groove wall, an air guide channel communicated with the vent hole is arranged on the outer side of the second groove wall, and the air guide channel is provided with a second air guide port which is communicated with the air inlet end of the second heat exchanger; The first tunnel is a soft tunnel and comprises a top plate and two side parts which are respectively arranged on two sides of the lower part of the top plate, the top plate is kept in position, at least one of the two side parts is a movable side part which can be folded or unfolded relative to the top plate, in an unfolding state, a channel of the tunnel is formed by surrounding the two side parts and the top plate, and in a folding state, the movable side part is folded relative to the top plate, so that one side of the channel corresponding to the movable side part is opened.
2. The calcium carbide waste heat recovery system according to claim 1, further comprising a screening device, wherein the screening device is used for screening calcium carbide crushed by the crushing system, the screening device comprises an inner cavity and an air outlet communicated with the inner cavity, the calcium carbide is screened in the inner cavity, and the air outlet is communicated with the air inlet end of the second heat exchanger.
3. The calcium carbide waste heat recovery system according to claim 2, wherein an air suction cover is arranged at the furnace mouth of the calcium carbide furnace and is communicated with the air inlet end of the first heat exchanger.
4. The calcium carbide waste heat recovery system according to claim 1, further comprising a secondary crushing device, wherein the secondary crushing device is used for crushing calcium carbide crushed by the crushing device, the secondary crushing device comprises a crushing cavity, the crushing cavity is provided with a third air inlet, and the third air inlet is communicated with the air inlet end of the second heat exchanger.
5. The calcium carbide waste heat recovery system according to claim 1, further comprising a second tunnel, wherein the track passes through the second tunnel at a downstream portion of the tapping point.
6. The calcium carbide waste heat recovery system according to claim 1, wherein the movable side portion comprises a plurality of heat insulation plates which are sequentially arranged along the extending direction of the top plate channel, the heat insulation plates can slide along the extending direction of the channel, and two adjacent heat insulation plates are movably arranged.
7. The calcium carbide waste heat recovery system according to claim 1, wherein the crushing device further comprises a conveying belt and a heat preservation cover, the crushing mechanisms are arranged on two sides of the conveying belt, the heat preservation cover is arranged above the conveying belt, and the air guide channel is formed by surrounding the crushing mechanisms, the heat preservation cover and the conveying belt.
8. The calcium carbide waste heat recovery system according to claim 7, wherein the second trough wall is a movable trough wall capable of moving along the Y-axis direction, and the crushing device further comprises a pushing mechanism for pushing the second trough wall to move along the Y-axis direction.
9. The calcium carbide waste heat recovery system according to claim 7, wherein the second groove wall comprises a cross beam, a fixed shaft fixedly arranged on the cross beam and a push plate arranged on the fixed shaft, the cross beam and the fixed shaft extend along the X-axis direction, the cross beam is arranged on the crushing groove in a sliding mode along the Y-axis direction, the upper end of the push plate is rotatably arranged on the fixed shaft, the lower end of the push plate naturally sags, and a limiting piece is further arranged on the cross beam and positioned on the inner side of the push plate and used for limiting the push plate to overturn towards one side close to the first groove wall.

Description

Calcium carbide waste heat recovery system Technical Field The invention relates to the technical field of calcium carbide production systems, in particular to a calcium carbide waste heat recovery system. Background In the existing calcium carbide production process, the main steps are that calcium carbide raw materials are processed by a calcium carbide furnace to form high-temperature molten calcium carbide, then the molten calcium carbide is poured into a calcium carbide pot on a rail train, the molten calcium carbide is conveyed to a cooling room for cooling and shaping through train travelling to form solid calcium carbide, and then the calcium carbide is crushed, screened and the like sequentially. However, in this way, the calcium carbide is broken after cooling, and the calcium carbide has very high heat dissipation in the cooling process, if any heat is volatilized directly, the waste of resources is definitely a kind of resource, and the heat of the calcium carbide is also being dissipated in the process of carrying out the furnace through the train after the calcium carbide is discharged, and the heat of the part also has recovery value, so how to design a system capable of effectively recovering the waste heat of the calcium carbide becomes a technical problem to be solved urgently by those skilled in the art. Disclosure of Invention In order to solve at least one technical problem mentioned in the background art, the invention aims to provide a calcium carbide waste heat recovery system. In order to achieve the above purpose, the present invention provides the following technical solutions: The utility model provides a carbide waste heat recovery system, includes carbide stove and track, is equipped with the train of following the track operation on the track, the track includes out the pot point, and the carbide pot that the train held in the palm was carried is discharged at out the pot point, waste heat recovery system still includes: the part of the track between the furnace mouth of the calcium carbide furnace and the pan outlet point passes through the first tunnel, and the first tunnel is provided with a first air guiding port; The first air inlet of the first tunnel is communicated with the air inlet end of the first heat exchanger; The crushing system comprises a crushing device for crushing and shaping molten calcium carbide, the crushing device comprises a crushing mechanism, the crushing mechanism comprises a frame, a crushing groove and a crushing head, the crushing groove is arranged on the frame, the crushing head comprises a die head and a lifting mechanism for driving the die head to move along the Z-axis direction, a plurality of mutually independent grids are arranged at the bottom of the die head, the crushing groove comprises a first groove wall and a second groove wall which are oppositely arranged along the Y-axis direction, a fan is arranged on the first groove wall, a vent hole is arranged on the second groove wall, an air guide channel communicated with the vent hole is arranged on the outer side of the second groove wall, the air guide channel is provided with a second air guide opening, and the second air guide opening is communicated with an air inlet end of a second heat exchanger. Compared with the prior art, the scheme has the advantages that: Firstly, through setting up first heat exchanger and first tunnel in this scheme, make the track be located the mouth of carbide stove to go out the part between the pot point and pass through in the first tunnel to be linked together the first induced air mouth of first tunnel and the inlet end of first heat exchanger, so, the high-temperature molten state carbide is loaded to the carbide pot on the train from the mouth of carbide stove, and the train is followed to hold in the palm and is carried the carbide pot and move in the first tunnel, and the heat of carbide gives off to form hot air in the first tunnel, so realizes heat exchange in introducing first heat exchanger with the hot air in the first tunnel through first induced air mouth, so with the purpose of realizing the waste heat recovery of train support year carbide operation in-process. Secondly, in this scheme, the carbide stove is discharged at the play pot point after, can directly transport to breaker in, makes the carbide realize broken with the sash of molten state cooperation die head in broken inslot, utilizes each sash to separate into a plurality of regions with the carbide, and after the carbide cooling solidification of molten state, just forms a plurality of small cubic carbide in broken inslot, is equivalent to a sash formation fritter carbide, so with the purpose of realizing the broken design of molten state carbide. In addition, blow to second cell wall one side through the fan, and the wind can absorb the heat that the carbide gives off when sweeping through broken groove and form hot-blast, and then blow into the induced air passageway from