Weight lifting device of coke oven heating exchange system

Abstract

The utility model relates to a weight lifting device of a coke oven heating exchange system, which comprises a chain and a locking device, one end of the chain is connected with a transmission device of the coke oven heating exchange system, and the other end of the chain is connected with a waste gas weight and an air door through the locking device; the locking device is composed of a locking ring and a locking ring. The opening of the locking ring is locked and connected through matching of threads and a locking nut; the locking ring is arranged in the locking ring, and an opening of the locking ring can be sealed through the movable ring body. A traditional shackle type connection mode is improved into a double-insurance structure composed of the locking ring and the locking ring, the weight falling prevention function can be effectively achieved, the chain clamping condition during weight lifting can be effectively prevented, the accident rate of weight falling and clamping of the exchange transmission device in the heating process of the coke oven is greatly reduced, and the service life of the exchange transmission device is prolonged. The production safety is improved, and the smooth production of the coke oven is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to coke oven coking technical field especially relates to a kind of for coke oven heating exchange system's lifting weight device. BACKGROUND

[0002] The development trend of current coke oven is to develop towards large scale, large coke oven generally adopts double fireway, sectional heating, waste gas circulation, through air and waste gas timed exchange to realize coke oven temperature rising and constant temperature process, i.e. in the process of coke oven heating, gas, air, waste gas need to be exchanged by coke oven heating exchange system in time. Coke oven heating exchange system is the core component of coke oven heating system, which adopts full hydraulic transmission, drives waste gas weight and air damper by chain transmission device to realize the switching of waste gas and air. In the exchange process, lifting weight, falling weight, lifting damper, falling damper and other actions must be accurate. If waste gas weight falls in the process of lifting weight, it will cause the obstruction of raw gas passage, and the raw gas generated by coke oven cannot be smoothly discharged, resulting in production accident, and even threatening personal safety. Therefore, in the process of coke oven production, it is very important to ensure the accuracy of the actions of lifting weight, lifting damper, falling weight and falling damper of exchange opener.

[0003] At present, in the lifting weight device of coke oven heating exchange system, one end of chain is connected with corresponding pull ring on waste gas weight or air damper through shackle, and the other end is connected with transmission device in coke oven heating exchange. After several times of lifting weight (lifting damper), falling weight (falling damper), shackle is prone to loosen and appear to be off. After shackle is off, waste gas weight or air damper cannot be lifted normally, which will cause production accident that raw gas cannot be discharged. In addition, in order to ensure that corresponding waste gas passage or air passage is completely closed when falling weight or falling damper, the length of chain is usually designed to have certain surplus in initial design. When falling weight or falling damper, shackle is prone to fall into corresponding pull ring on exchange opener. In the next exchange state, shackle cannot be smoothly lifted because it is stuck in pull ring, which not only causes the jamming of exchange transmission action, but also shortens the effective length of chain, so that the height of lifting weight or lifting damper is increased, and the passage cannot be completely closed when falling again. Therefore, it is necessary to improve lifting weight device to prevent weight falling or chain sticking. SUMMARY

[0004] The utility model provides a kind of lifting weight device of coke oven heating exchange system, traditional shackle type connection is improved into double insurance structure consisting of locking ring and locking ring, not only can effectively realize the function of preventing weight falling, but also can position pull ring by locking ring in locking ring, effectively prevent the occurrence of chain sticking when lifting weight, greatly reduce the accident rate of weight falling and jamming of exchange transmission device in the process of coke oven heating, improve the safety of production, ensure the smooth progress of coke oven production.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme to realize:

[0006] A kind of lifting device of coke oven heating exchange system, including chain and locking device, one end of the chain is connected with the transmission device of coke oven heating exchange system, the other end of the chain is connected with exhaust weight and air damper by locking device;The locking device is composed of locking ring and locking ring;The opening of the locking ring is connected by thread and locking nut;The locking ring is arranged in the inside of locking ring, and the opening of locking ring can be closed by movable ring body, one end of movable ring body is hinged with locking ring body by hinge, the other end of movable ring body is locked and connected with locking ring body by lock catch.

[0007] The exhaust weight and air damper are respectively provided with pull ring at the chain connection part, and the pull ring is clamped in the locking ring after connection.

[0008] The locking ring body is composed of chain connecting section, intermediate connecting section and pull ring connecting section;Chain connecting section has semicircular ring structure matched with the diameter of chain, and pull ring connecting section has semicircular ring structure matched with the diameter of pull ring;Chain connecting section and pull ring connecting section are connected by intermediate connecting section, one side of intermediate connecting section is provided with opening, thread is arranged on the intermediate connecting section of one end of opening, and locking nut is arranged on the intermediate connecting section of the other end of opening.

[0009] The locking ring is arranged in the inside of pull ring connecting section of locking ring, and the locking ring has diameter matched with pull ring connecting section;Movable ring body is arranged at the top of locking ring.

[0010] The locking ring body and the locking ring body are welded and fixed.

[0011] Compared with prior art, the utility model has the advantages that:

[0012] 1) the traditional unloading buckle type connection is improved into double safety structure of "locking ring + locking ring", which can effectively realize the function of preventing weight falling;

[0013] 2) the locking ring arranged in the locking ring can position the pull ring, effectively preventing the chain from being stuck when lifting the weight;

[0014] 3) greatly reduces the accident rate of weight falling and blocking of exchange transmission device during coke heating process, improves the safety of production, and ensures the smooth production of coke oven.

[0015] 4) the device structure is simple, and maintenance and replacement are convenient;

[0016] 5) wide application prospect, not only suitable for newly-built coke oven, but also convenient for equipment improvement of large-scale coke oven already put into operation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structure schematic view of the weight lifting device of the coke oven heating exchange system.

[0018] Figure 2 is a structure schematic view of the locking device.

[0019] In the figure: 1. chain 2. locking ring 21. thread 22. locking nut 3. locking ring 31. movable ring body 4. waste gas weight 5. air damper 6. pull ring DETAILED DESCRIPTION

[0020] The specific embodiments of the utility model will be further described below in combination with the drawings:

[0021] As Figure 1 , Figure 2 indicated, the utility model discloses a kind of weight lifting devices of coke oven heating exchange system, including chain 1 and locking device, one end of chain 1 is connected with the transmission device of coke oven heating exchange system, the other end of chain 1 is connected with waste gas weight 4 and air damper 5 by locking device;Different from the mode of conventional buckling connection, the locking device of the utility model is composed of locking ring 2 and locking ring 3;The opening of locking ring 2 is locked by thread 21 and locking nut 22 cooperation;Locking ring 3 is arranged in the inside of locking ring 2, the opening of locking ring 3 can be closed by movable ring body 31, one end of movable ring body 31 is hinged with locking ring body by hinge, the other end of movable ring body is locked and connected with locking ring body by lock.

[0022] Waste gas weight 4 and air damper 5 are respectively provided with pull ring 6 at the connection with chain 1, and pull ring 6 is clamped in locking ring 3 after connection.

[0023] Locking ring body is composed of chain connecting section, intermediate connecting section and pull ring connecting section;Chain connecting section has semicircular ring structure matched with the diameter of chain 1, pull ring connecting section has semicircular ring structure matched with the diameter of pull ring 6;Chain connecting section and pull ring connecting section are connected as a whole by intermediate connecting section, and the intermediate connecting section of one side is provided with an opening, thread 21 is arranged on the intermediate connecting section of one end of the opening, and locking nut 22 is arranged on the intermediate connecting section of the other end of the opening.

[0024] Locking ring 3 is arranged in the inside of pull ring connecting section of locking ring 2, and locking ring 3 has a diameter matched with pull ring connecting section;Movable ring body 31 is arranged at the top of locking ring 3.

[0025] Locking ring body and locking ring body are welded and fixed.

[0026] The utility model discloses a kind of scale lifting devices of coke oven heating exchange system, including chain 1, locking ring 2 and locking ring 3;The upper end of chain 1 is connected with the transmission device of coke oven heating exchange system, and the other end of chain 1 is connected with waste gas scale 4 and air damper 5 on exchange switch by locking device.The transmission device of coke oven heating exchange system drags scale lifting device, and corresponding waste gas scale 4 and air damper 5 are driven to open and close by scale lifting device.The part of chain 1 connected with waste gas scale 4 and air damper 5 adopts locking ring 2 that is easy to disassemble and more reliable than unpinning, and is connected by the cooperation of thread 21 and locking nut 22 in the opening of locking body, to realize firm connection, when chain 1 is seriously worn, the quick replacement of chain 1 can be realized by loosening locking nut 22.

[0027] Locking ring 2 is provided with locking ring 3, and the movable ring body 31 is rotatably connected to the locking ring body by a hinge, and after the pull ring 6 enters the locking ring 3, the movable ring body 31 is locked and fixed with the locking ring body by a lock, and then the relative position of the locking ring 2 and the pull ring 6 is fixed, to prevent the scale lifting process from being blocked due to interference between the two.

[0028] The utility model discloses a kind of scale lifting devices of coke oven heating exchange system, is set along coke oven flue corridor, and waste gas scale 4 and air damper 5 of exchange switch are set one by one, for realizing the lifting action of waste gas scale 4 and air damper 5 of each exchange switch.

[0029] In the production process of coke oven, the transmission device of coke oven heating exchange system is operated by reversing at set time interval, and when the transmission device is actuated, waste gas scale 4 and air damper 5 are driven by scale lifting device, to realize the opening and closing of waste gas passage and air passage on each exchange switch.

[0030] The installation and replacement process of the utility model discloses a kind of scale lifting devices of coke oven heating exchange system as follows:

[0031] As shown in Figures 1-2 , before installation, locking nut 22 is loosened and removed, so that the opening of locking ring 2 is in an open state;Then, the lock on locking ring 3 is opened, and the movable ring body 31 is rotated around the hinge, so that the opening of locking ring 3 is also in an open state;The pull ring 6 corresponding to waste gas scale 4 and air damper 5 is sleeved into the locking ring 3 in locking ring 2, the lock on locking ring 3 is locked, and then locking nut 22 is screwed into the threaded section to lock the opening of locking ring 2;After installation is completed, the coke oven heating exchange system is debugged according to the conventional process, and after debugging, it is put into coke oven production;During maintenance, the locking ring 3 and locking ring 2 of scale lifting device are opened in reverse order according to the above process, and the scale lifting device can be removed and replaced.

[0032] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and inventive concept of the present application, can make equivalent substitutions or changes within the technical range disclosed by the present application, which should be encompassed in the protection scope of the present application.

Claims

1. A coke oven heating exchange system's hoist device, comprising a chain and a locking device, one end of the chain is connected to the transmission device of the coke oven heating exchange system, the other end of the chain is connected to the exhaust hoist and the air damper through the locking device; characterized in that, The locking device is composed of a locking ring and a locking ring; the opening of the locking ring is connected by thread and locking nut; the locking ring is arranged inside the locking ring, and the opening of the locking ring can be closed by a movable ring body, one end of the movable ring body is hinged to the locking ring body through a hinge, and the other end of the movable ring body is locked and connected to the locking ring body through a lock.

2. A hoist device for a heating exchange system of a coke oven according to claim 1, characterized in that The exhaust gas and air damper are respectively provided with pull rings at the chain connection positions, and the pull rings are clamped in the locking ring after connection.

3. A hoist device for a heating exchange system of a coke oven according to claim 1, characterized in that, The locking ring body is composed of a chain connection section, an intermediate connection section and a pull ring connection section; the chain connection section has a half-ring structure matched with the diameter of the chain, and the pull ring connection section has a half-ring structure matched with the diameter of the pull ring; the chain connection section and the pull ring connection section are connected into one through the intermediate connection section, one side of the intermediate connection section is provided with an opening, the intermediate connection section at one end of the opening is provided with a thread, and the intermediate connection section at the other end of the opening is provided with a locking nut.

4. A hoist device for a heating exchange system of a coke oven according to claim 1, characterized in that, The locking ring is arranged inside the pull ring connection section of the locking ring, and the locking ring has a diameter matched with the pull ring connection section; the movable ring body is arranged at the top of the locking ring.

5. A jack device for a heating exchange system of a coke oven according to claim 4, characterized in that, The locking ring body and the locking ring body are welded and fixed.

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