CN214830107U

CN214830107U - Coke quenching car add take off and cover device

Info

Publication number: CN214830107U
Application number: CN202121250774.1U
Authority: CN
Inventors: 邱志刚
Original assignee: Qinhuangdao Zhuoming Technology Development Co ltd
Current assignee: Qinhuangdao Zhuoming Technology Development Co ltd
Priority date: 2021-06-04
Filing date: 2021-06-04
Publication date: 2021-11-23
Anticipated expiration: 2031-06-04

Abstract

The utility model provides a coke quenching car add and take off and cover device relates to coking equipment technical field, and it is many to have solved the uncovered and dust cage of upside of coke quenching jar among the prior art and overflow scattered, easily causes smoke and dust and harmful gas inorganization to discharge, the technical problem of polluted environment. This cover device is taken off with adding includes the support frame, lifting unit, snatch subassembly and lid, the support frame erects the top at the quenching car, lifting unit's first end is connected with the support frame, its second end with snatch the subassembly and be connected, the lid can cover the jar mouth of quenching jar on the quenching car, lifting unit can drive and snatch the subassembly motion so that snatch the subassembly and grasp and release the action to the lid, can all add the lid in the advancing and return process of quenching car and seal, greatly reduce the unorganized emission of smoke and dust and toxic gas in the quenching jar, environmental pollution has been reduced and the coke calorific loss of quenching jar at the walking in-process can be greatly reduced.

Description

Coke quenching car add take off and cover device

Technical Field

The utility model belongs to the technical field of the coking equipment technique and specifically relates to a coke quenching car add take off and cover device.

Background

The coke quenching car is a matching device of a large coke oven, generally runs on a track below the coke side of the coke oven, is provided with a coke quenching tank for receiving high-temperature coke derived by a coke guide, can drive the coke quenching tank to move to a lifting tower along the track of the coke quenching car, lifts and feeds the high-temperature coke in the coke quenching tank into the coke quenching tower through the lifting tower, then conveys the cooled coke to a coke drying platform and discharges the cooled coke, and the primary coke quenching operation is finished.

At present, in the reciprocating motion process of a coke quenching car from a coke guide to a lifting tower, a coke quenching tank is open at the upper side, smoke and harmful gas generated by high-temperature coke combustion in the coke quenching car can be subjected to unorganized emission in the walking process of the coke quenching car, so that the environment is greatly polluted, and the life safety of workers is harmed. Among the prior art, the staff can set up the suction hood above the removal track that coke car and coke quenching car contain the coke receiving, but the migration distance of coke quenching car is longer, and the more and mounted position of a quantity that the suction hood need set up is limited, need preserve great clearance home distance between suction hood and the quenching jar moreover, and excessive scattered some is many, and dust absorption purifying effect is relatively poor.

Therefore, how to solve the technical problems of the prior art that the upper side of the coke quenching tank is open and the dust hood has a plurality of overflow and scattering points, which easily causes the inorganization discharge of smoke dust and harmful gas and pollutes the environment becomes an important technical problem to be solved by the personnel in the field.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a coke quenching car add and take off and cover device, it is many to have solved the uncovered and suction hood of upside of coke quenching jar among the prior art overflow scattered, easily causes smoke and dust and harmful gas inorganization to discharge, the technical problem of polluted environment. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a coke quenching car add take off and cover device can set up and be close to coke guide and hoisting tower position department, include support frame, lifting unit, snatch subassembly and lid, wherein, the support frame erects coke guide's top, lifting unit's first end with the support frame is connected, its second end with it is connected to snatch the subassembly, the lid can cover put out the jar mouth of burnt jar on the coke guide, lifting unit can drive it moves so that to snatch the subassembly right the lid promptly holds and releases the action.

Preferably, the lifting tower comprises a first lifting mechanism fixedly provided with a sealing cover, and the covering and uncovering devices are respectively arranged at the position close to the dust hood of the coke guide and at the positions in front of and behind the lower part of the lifting tower.

Preferably, the lifting tower comprises a second lifting mechanism without a sealing cover, and the covering and uncovering device is arranged at a position close to a dust hood of the coke guide.

Preferably, the lower part of the support frame is in sliding connection with the track of the coke guide.

Preferably, the lifting assembly comprises one or more vertically arranged telescopic pieces, the grabbing assembly is arranged at the lower part of the one or more telescopic pieces, and the telescopic pieces are circumferentially distributed along the upper part of the cover body.

Preferably, the telescopic part is a cylinder, a hydraulic cylinder or an electric push rod.

Preferably, the grabbing component is an electromagnet suction structure, a manipulator structure or a hook connecting structure.

Preferably, the coke quenching car further comprises a first sensing part arranged on the coke quenching car walking path and used for detecting the forward walking state of the coke quenching car and a second sensing part arranged on the coke quenching car walking path and used for detecting the return walking state of the coke quenching car, and the first sensing part and the second sensing part are both in communication connection with the lifting assembly and the driving part of the grabbing assembly.

Preferably, the first sensing member and the second sensing member are both photoelectric switches or travel switches.

Preferably, the cover body comprises an outer shell and an inner core arranged in the outer shell, and the inner core is made of an aluminum silicate fiber module.

The utility model discloses compare in prior art and have following beneficial effect:

the cover adding and uncovering device of the coke quenching car provided by the utility model is arranged at the coke guide and the lifting tower, and the coke quenching tank is subjected to the cover adding operation at the coke guide position and the cover uncovering operation at the lifting tower position in the process that the coke quenching car moves from the coke guide to the lifting tower position, so as to perform the subsequent process; the in-process that the coke quenching car returned to coke guide position department by the lift tower, the coke quenching jar adds the lid operation in lift tower position department, and take off the lid operation in coke guide position department, so that the coke quenching jar connects burnt filling operation again, whole cycle in-process, it is swift to add and take off the lid operation, the time is no longer than 40 seconds, can all add the lid and seal at the advancing of coke quenching car and return in-process, greatly reduce the unorganized emission of smoke and dust and toxic gas in the coke quenching jar, environmental pollution has been reduced and the coke calorific loss of coke jar in the walking in-process can greatly be reduced, after covering, coke forms oxygen deficiency semi-combustion state in the coke quenching jar, more do benefit to the formation of coke body.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of a covering and uncovering device of a coke quenching car provided by an embodiment of the invention;

fig. 2 is a schematic position diagram of a second sensing element according to an embodiment of the present invention;

FIG. 3 is a front view of a covering and uncovering device of a coke quenching car provided by an embodiment of the present invention;

FIG. 4 is a side view of a covering and uncovering device of a quenching car according to an embodiment of the present invention;

FIG. 5 is a top view of a covering and uncovering device of a coke quenching car provided by an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a cover body according to an embodiment of the present invention.

FIG. 1-support shelf; 2-a lifting assembly; 3-a grasping assembly; 4-a cover body; 5-a telescopic member; 6-a first sensing member; 7-a second sensing member; 8-a housing; 9-inner core; 10-quenching car; 11-a coke quenching tank; 12-rails of coke guide; 13-track of quenching car.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

An object of the utility model is to provide a coke quenching car add and take off and cover device, it is many to have solved the uncovered and suction hood of upside of coke quenching jar among the prior art overflow scattered, easily causes smoke and dust and harmful gas inorganization to discharge, the technical problem of polluted environment.

Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the scope of the invention described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the invention described in the claims.

Referring to fig. 1-2, the utility model provides a coke quenching car cover adding and uncovering device which can be arranged at a position close to a coke guide and a lifting tower and is used for adding a cover to a coke quenching tank 11 on a coke quenching car 10 to seal the cover. Specifically, the covering and uncovering device of the coke quenching car comprises a support frame 1, a lifting assembly 2, a grabbing assembly 3 and a cover body 4, wherein the support frame 1 is erected above the coke quenching car 10, the support frame 1 is located on one side of a dust removing cover of the coke guide, the first end of the lifting assembly 2 is connected with the support frame 1, and the second end of the lifting assembly is connected with the grabbing assembly 3 so as to drive the grabbing assembly 3 and the cover body 4 to perform lifting motion. The cover body 4 can cover the mouth of the coke quenching tank 11 on the coke quenching car 10, so that the cover body 4 can cover the coke quenching tank 11 to seal the gland of the coke quenching tank 11, and thus, when the coke quenching tank 11 needs to be covered, the lifting assembly 2 moves to drive the grabbing assembly 3 and the cover body 4 to fall down, the cover body 4 is released and placed at the mouth of the coke quenching tank 11, and then the lifting assembly 2 can drive the grabbing assembly 3 to lift back to complete the covering operation; when the coke quenching tank 11 needs to be uncovered, the lifting assembly 2 moves to drive the grabbing assembly 3 to fall down, the grabbing assembly 3 grabs the cover body 4 tightly, then the lifting assembly 2 can drive the grabbing assembly 3 and the cover body 4 to lift back, so that the cover body 4 is separated from the coke quenching tank 11, the cover uncovering operation is completed, and the operation is rapid, simple and convenient. The utility model is arranged near the coke guide and the lifting tower, that is, the coke quenching tank 11 is covered at the position of the dust hood of the coke guide and uncovered at the position of the lifting tower for the subsequent process when the coke guide 10 moves to the position of the lifting tower from the coke guide; in the process that the coke quenching car 10 returns to the coke guide position from the lifting tower, the coke quenching tank 11 is covered at the lifting tower position, and the cover uncovering operation is carried out at the dust hood position of the coke guide, so that the coke quenching tank 11 is subjected to coke receiving and filling operation again, in the whole circulation process, the cover covering and uncovering operation is simple and quick, the time is not more than 40 seconds, the cover covering and uncovering sealing can be carried out in the advancing and returning processes of the coke quenching car 10, the unorganized emission of smoke dust and toxic gas in the coke quenching tank 11 is greatly reduced, the environmental pollution is reduced, the coke heat loss of the coke quenching tank 11 in the walking process can be greatly reduced, after covering, the coke in the coke quenching tank 11 is in an anoxic semi-combustion state, the formation of coke bodies is more facilitated, and the problem that in the prior art, the smoke dust and harmful gas are easily discharged in an unorganized mode due to the fact that the upper side of the coke quenching tank 11 is open and the dust hood overflows and scatters a lot is solved, the technical problem of environmental pollution.

The coke quenching car 10 drives the coke quenching tank 11 to move along a coke quenching car track 13 to perform reciprocating motion between the coke guide and the lifting tower, and the coke quenching car 10 can be driven by a motor or a cover adding and removing device can be detachably connected with the coke guide to synchronously operate with the coke guide.

The technical solution of the present invention will be described in detail with reference to the following specific embodiments.

Example 1:

the coke quenching car cover adding and uncovering device provided by the embodiment comprises a support frame 1, a lifting component 2, a grabbing component 3 and a cover body 4, wherein the support frame 1 is erected above a coke quenching car 10, the first end of the lifting component 2 is connected with the support frame 1, the second end of the lifting component 2 is connected with the grabbing component 3, the cover body 4 can cover a tank opening of a coke quenching tank 11 on the coke quenching car 10, the lifting component 2 can drive the grabbing component 3 to move so that the grabbing component 3 can grasp and release the cover body 4, wherein the lifting tower comprises a first lifting mechanism fixedly provided with a sealing cover, namely the lifting tower is provided with the sealing cover, under the condition, the cover adding and uncovering device is respectively arranged at a dust hood position close to the coke barrier car and at the front position or the rear position of the lower part of the lifting tower, or the coke quenching cover adding and uncovering device is arranged at the front position and the rear position of the lower part of the lifting tower so as to adapt to the condition that the two coke quenching cars 10 alternately run at the left side and the right side of the lifting tower, thus, corresponding covering and uncovering operations are carried out on the corresponding coke quenching tank 11, namely when the coke quenching tank 11 moves forward, the coke quenching tank is covered at the position of a dust hood of the coke guide, the coke quenching tank is uncovered in front of the lifting tower, and then the coke quenching tank is covered and lifted by a sealing cover arranged on the lifting tower for subsequent processes; after the subsequent processes are completed, the coke quenching tank 11 is transported by the lifting tower, and then returns to the position of the dust hood of the coke guide for uncovering after being covered in front of the lifting tower, so that the coke quenching tank can be used by matching with the existing lifting tower, and the transformation project of the lifting tower is avoided.

Example 2:

referring to fig. 1-2, the coke quenching car cover adding and removing device provided in this embodiment includes a supporting frame 1, a lifting assembly 2, a grabbing assembly 3 and a cover body 4, the supporting frame 1 is erected above the coke quenching car 10, the lifting assembly 2 is connected to the supporting frame 1 at a first end and connected to the grabbing assembly 3 at a second end, the cover body 4 can cover a mouth of a coke quenching tank 11 on the coke quenching car 10, the lifting assembly 2 can drive the grabbing assembly 3 to move so that the grabbing assembly 3 can grasp and release the cover body 4, wherein the lifting tower includes a second lifting mechanism without a sealing cover, that is, the structure of the existing lifting tower is changed, only the second lifting mechanism for lifting the coke quenching tank 11 by the lifting tower is reserved, in this case, the cover adding and removing device can be disposed at a position close to a dust hood of the coke guide, that is, after the coke quenching tank 11 is subjected to a subsequent process, the lifting tower carries the cover body 4 directly to the coke quenching car 10, and is transported back to the position close to the dust hood of the coke guide by the coke quenching car 10 to carry out uncovering operation, thereby leading the coke quenching tank 10 to continue to smoothly receive coke again at the coke guide. After the coke quenching tank 11 is coked, the coke quenching tank 11 is moved to the cover adding and removing device of the coke guide to be covered, the coke quenching tank 11 is provided with the cover body 4 to be moved to the lifting tower, the lifting tower is used for lifting the coke quenching tank 11 and the cover body 4 together to perform subsequent procedures, the lifting tower can directly drive the cover body 4 and the coke quenching tank 11 to be lifted together, the cover adding and removing operation before and after lifting is reduced, the cover adding and removing time of the coke quenching tank 11 in the circulation process from the coke guide to the lifting tower is greatly reduced, and the cover adding and removing time is not more than ten seconds.

It should be noted here that when the coke quenching tank 11 needs to be opened at the upper portion in the subsequent process, the covering and uncovering device can be additionally arranged at the rear of the upper portion of the lifting tower to uncover the coke quenching tank 11, and certainly, if the coke quenching tank 11 does not need to be opened at the upper portion in the subsequent process, the covering and uncovering device at the rear of the upper portion of the lifting tower can be omitted, that is, the covering and uncovering device at the rear of the upper portion of the lifting tower can be selectively arranged according to the actual situation, so that the covering and uncovering time in the whole circulation process can be saved.

Example 3:

referring to fig. 1-5, the coke quenching car cover adding and uncovering device provided in this embodiment includes a support frame 1, a lifting assembly 2, a grabbing assembly 3 and a cover body 4, the support frame 1 is erected above a coke quenching car 10, a first end of the lifting assembly 2 is connected to the support frame 1, a second end of the lifting assembly 2 is connected to the grabbing assembly 3, the cover body 4 can cover a mouth of a coke quenching tank 11 on the coke quenching car 10, the lifting assembly 2 can drive the grabbing assembly 3 to move so that the grabbing assembly 3 can grab and release the cover body 4, wherein the lower portion of the support frame 1 is slidably connected to a rail 12 of a coke barrier car, that is, the support frame 1 can be a gantry structure with rollers at the lower portion, the support frame 1 runs along the rail 12 of the coke barrier car, can synchronously move with the coke barrier car to various oven door positions to perform coke receiving operation, and is more flexible and convenient to use.

As the embodiment of the utility model provides an optional embodiment, lifting unit 2 includes a plurality of vertical setting's of edge extensible member 5, snatchs the subassembly 3 and sets up in the lower part of a plurality of extensible members 5 to make extensible member 5 drive and snatch subassembly 3 and carry out vertical lift. A plurality of extensible member 5 distribute along the circumference of lid 4 and set up, can form a plurality of promotion hanging points in the circumference of lid 4 for the promotion process of lid 4 is more steady and makes lid 4 and lifting unit 2's connection more firm. Preferably, four telescopic elements 5 may be provided.

Further, extensible member 5 is cylinder or pneumatic cylinder, and both structures operation is stable, can make the reciprocal lift of lid 4 more steady.

As the utility model discloses embodiment is optional, snatch subassembly 3 and be electro-magnet suction structure, manipulator structure or joint structure, electro-magnet suction structure, establish to magnet or metal material for 4 upper portions of lid promptly, it is a plurality of electromagnetism magnetic part to snatch subassembly 3, the circular telegram of electro-magnet part produces suction and snatchs lid 4, the outage loses suction and releases lid 4, this structure can make lid 4 and snatch for the face contact between the subassembly 3, more can adapt to put out burnt jar 11 and need the pivoted condition when connecing burnt. The manipulator structure or the clamping structure can tightly clamp or clamp the circumferential direction of the cover body 4, so that the cover body 4 and the grabbing assembly 3 are more stably and firmly connected.

As the embodiment of the utility model provides an optional embodiment, the utility model discloses still include first response piece 6 and second response piece 7, first response piece 6 and second response piece 7 all set up on the walking route of quenching car 10, and first response piece 6 and second response piece 7 all with lifting unit 2 with snatch subassembly 3's drive part looks communication connection, lifting unit 2 with snatch subassembly 3's drive part and two response piece between be connected the cooperation mode and be close with prior art, no longer describe herein. The first sensing part 6 and the second sensing part 7 can be respectively positioned in front of or behind the support frame 1 and respectively detect the walking state of the coke quenching car 10, the first sensing part 6 can be used for detecting the advancing state of the coke quenching car 10, namely the walking direction of the coke quenching car 10 is triggered when the advancing direction is the advancing direction, and the first sensing part 6 transmits the walking state and position signals of the coke quenching car 10 to the driving parts of the lifting assembly 2 and the grabbing assembly 3 so that the lifting assembly 2 and the grabbing assembly 3 at the position of the coke guide or the lifting tower can perform corresponding capping or uncapping operations. The second sensing member 7 can be used for detecting the return state of the coke quenching car 10, namely, the second sensing member 7 can be used for triggering when the walking direction of the coke quenching car 10 is the return direction, the second sensing member 7 can transmit the walking state and position signals of the coke quenching car 10 to the driving parts of the lifting assembly 2 and the grabbing assembly 3 so as to enable the lifting assembly 2 and the grabbing assembly 3 at the position of the coke guide or the lifting tower to perform corresponding covering or uncovering operation, the arrangement is such that when the coke quenching car 10 advances from the coke guide to the lifting tower, the first sensing member 6 at the corresponding position can be triggered so as to drive the lifting assembly 2 and the grabbing assembly 3 to move in advance according to the motion state of the coke quenching car 10, when the coke quenching car 10 reaches the position of the dust hood of the coke guide, the cover body 4 just covers the coke quenching tank 11, when the coke car 10 reaches the position of the lifting tower, the lifting assembly 2 and the grabbing assembly 3 just fall down to the cover body 4 to perform uncovering operation on the cover body 4, when the coke quenching car 10 returns from the lifting tower to the coke guide, the second sensing piece 7 at the corresponding position is triggered, and the whole cycle time of advancing and returning and the time of covering and uncovering can be greatly saved.

Further, the first sensing member 6 and the second sensing member 7 can be but not limited to photoelectric switches or travel switches, and are triggered by the motion state of the quenching tank 11 or the quenching car 10, so that the sensing is sensitive, and the use is convenient and quick. Of course, the user may select other sensing elements according to the actual situation as long as the motion state of the coke quenching car 10 can be detected and corresponding signals can be transmitted.

Referring to fig. 6, as an alternative embodiment of the present invention, the cover 4 includes an outer shell 8 and an inner core 9 disposed inside the outer shell 8, the outer shell 8 may be made of metal material, such as steel plate or iron plate, the material of the inner core 9 is light or heavy high temperature resistant refractory material, preferably, the material of the inner core 9 may be, but is not limited to, an aluminum silicate fiber module, which has characteristics of fire resistance, heat preservation, heat insulation, sound absorption, energy saving, and the like, and can better insulate and seal the coke quenching tank 11.

In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The cover adding and uncovering device of the coke quenching car can be arranged at a position close to the coke quenching car and a lifting tower, and is characterized by comprising a support frame (1), a lifting assembly (2), a grabbing assembly (3) and a cover body (4), wherein the support frame (1) is erected above the coke quenching car (10), the first end of the lifting assembly (2) is connected with the support frame (1), the second end of the lifting assembly is connected with the grabbing assembly (3), the cover body (4) can cover a tank opening of a coke quenching tank (11) on the coke quenching car (10), and the lifting assembly (2) can drive the grabbing assembly (3) to move so that the grabbing assembly (3) can grasp and release the cover body (4).

2. The coke quenching car cover adding and removing device of claim 1, wherein the lifting tower comprises a first lifting mechanism fixedly provided with a sealing cover, and the cover adding and removing device is respectively arranged at a position close to a dust hood of the coke guide and at positions in front of and behind the lower part of the lifting tower.

3. The coke quenching car cover adding and removing device of claim 1, wherein the lifting tower comprises a second lifting mechanism without a sealing cover, and the cover adding and removing device is arranged at a position close to a dust hood of the coke guide.

4. The cover-lifting device for coke-quenching cars as claimed in claim 1, characterized in that the underside of the support frame (1) is in sliding connection with the rails (12) of the coke-quenching car.

5. The cover-lifting device for a coke quenching car as claimed in claim 1, wherein the lifting assembly (2) comprises one or more vertically arranged telescopic members (5), the grabbing assembly (3) is arranged at the lower part of the one or more telescopic members (5), and the telescopic members (5) are circumferentially distributed along the upper part of the cover body (4).

6. The lift-off device for coke quenching cars as claimed in claim 5, characterized in that the telescopic elements (5) are pneumatic cylinders, hydraulic cylinders or electric push rods.

7. The cover-lifting device for a coke quenching car as claimed in claim 1, wherein the gripping assembly (3) is an electromagnet suction structure, a manipulator structure or a hook-and-loop connection structure.

8. The cover-uncovering device for a coke quenching car as claimed in claim 1, further comprising a first sensing member (6) disposed on the travel path of the coke quenching car (10) for detecting the forward travel state of the coke quenching car (10) and a second sensing member (7) disposed on the travel path of the coke quenching car (10) for detecting the return travel state of the coke quenching car (10), wherein the first sensing member (6) and the second sensing member (7) are both in communication connection with the driving parts of the lifting assembly (2) and the grabbing assembly (3).

9. The lift-off device for a coke quenching car as claimed in claim 8, wherein the first sensor element (6) and the second sensor element (7) are both photoelectric switches or travel switches.

10. The cover-lifting device for the coke quenching car as claimed in claim 1, characterized in that the cover body (4) comprises an outer shell (8) and an inner core (9) arranged in the outer shell (8), the material of the inner core (9) is an alumina silicate fiber module.