CN114395408B - Dry quenching coke tank cover deviation correcting device and method - Google Patents

Abstract

The invention relates to a correction device and a correction method for a coke dry quenching tank cover, wherein the device comprises a forced correction device and a gravity auxiliary correction device; the forced deviation correcting device consists of 4 groups of forced deviation correcting mechanisms arranged at the outer side of the coke tank capping position, and each group of forced deviation correcting mechanisms comprises a deviation correcting guide rail and a positioning support; the outer side of the top of the coke tank cover is provided with 4 groups of lifting beams in one-to-one correspondence with the deviation correcting guide rails, and the bottom of the lifting beams is provided with a positioning sleeve matched with the positioning support for positioning; the gravity auxiliary deviation correcting device consists of a guide rod, a sliding sleeve and a gravity balance beam. According to the invention, the forced deviation correcting device and the gravity auxiliary deviation correcting device are arranged, so that the coke can cover can automatically correct the deviation in the falling process, the abrasion of a limiting and guiding mechanism of the coke can cover in the capping operation is reduced, and the service life of the coke can cover is prolonged; the coke tank capping process is smooth, the smooth production of the dry quenching is ensured, and the potential safety hazard of overhaul operation caused by the alignment deviation fault of the coke tank cap is avoided.

Description

A device and method for correcting the deviation of dry coke quenching coke tank cover

Technical field

The present invention relates to the technical field of dry coke quenching, and in particular to a device and method for correcting the deviation of a dry coke quenching coke tank cover.

Background technique

During the coke dry quenching production process, the coke tank needs to be frequently capped at the lower part of the lifting derrick and lifted to the upper part of the elevator. During the capping operation, the coke tank is lifted by an elevator to seal the coke tank cover with the coke tank. However, due to changes in the length of the steel rope and the offset of the center of gravity of the coke tank cover, there is often a deviation in the alignment of the coke tank and the coke tank cover during lifting. The conventional coke tank cover is equipped with four support seats, and each support seat is equipped with a two-dimensional limit guide structure. When the alignment deviation is serious, the impact load received is very large, and problems such as wear and deformation are prone to occur. In severe cases, the coke tank cover It may deviate from the positioner or even get stuck, causing the dry coke quenching to be forced to stop production for maintenance; and the maintenance process involves high-altitude operations, which poses the risk of safety accidents.

Contents of the invention

The invention provides a dry quenching coke tank cover deviation correction device and method. By setting a forced deviation correction device and a gravity-assisted deviation correction device, the coke tank lid can realize automatic deviation correction during the falling process, thereby reducing the capping operation and focusing on the tank lid limit guide mechanism. The wear and tear of the coke tank cover is extended, and the coke tank capping process is smooth, ensuring the smooth flow of dry quenching coke production and avoiding potential safety hazards in maintenance operations caused by misalignment of the coke tank cover.

In order to achieve the above objects, the present invention adopts the following technical solutions:

A dry quenching coke tank cover correction device, including a forced correction device and a gravity-assisted correction device; the forced correction device consists of four sets of forced correction mechanisms arranged in pairs along the horizontal center line outside the coke tank cover position, Each set of forced correction mechanisms includes a correction guide rail and a positioning support; an operating platform is provided on the upper outer side of the coke tank capping position, the correction guide rail and the positioning support are located on the operating platform, and the correction guide rail has a V-shaped structure; the coke tank cover Four sets of lifting beams are set up on the outside of the top of the machine in one-to-one correspondence with the correction guide rails. After the coke tank cover falls, the lifting beams fall into the opening of the correction guide rails and slide along them; the bottom setting sleeve of the lifting beams is positioned in conjunction with the positioning support. ; The gravity-assisted correction device is composed of a guide rod, a sliding sleeve and a gravity balance beam; the lower end of the guide rod is hinged with the top center of the coke tank cover, and the middle part of the gravity balance beam is slidingly connected to the guide rod through the sliding sleeve.

The end of the lifting beam in contact with the correction guide rail is provided with a guide roller, a bearing is provided between the guide roller and the lifting beam, and the outer end of the bearing is sealed by a shaft end gland.

The lifting beam is an L-shaped structure composed of a vertical rod and a horizontal rod. The bottom end of the vertical rod is fixedly connected to the coke tank cover, and the top of the vertical rod is connected to the inner end of the horizontal rod; there is also a horizontal rod between the horizontal rod and the vertical rod. There are reinforced diagonal supports.

The opening angle of the correction guide rail is 45°-65°.

The height of the top surface of the correction guide rail from the top surface of the positioning support is 1.2 to 1.5 m.

The top center of the coke tank cover is provided with a hinge support, and the lower end of the guide rod is hinged with the hinge support through a hinge shaft; the top of the guide rod is provided with a top baffle, which is fixedly connected to the guide rod through bolts.

The gravity balance beam has a self-weight of 0.5 to 2t.

The deviation-correcting guide rail is installed on the operating platform through a guide rail fixed seat.

A dry quenching coke tank lid correction method includes the following steps:

1) After loading the red coke into the dry quenching furnace, the elevator drives the coke tank and the coke tank cover to move horizontally to the lifting derrick, and the elevator lifts the coke tank cover and starts to fall;

2) When the lifting beam on the coke tank cover approaches the deviation-correcting guide rail, the elevator runs at low speed; the guide roller on the lifting beam moves downward along the opening of the deviation-correcting guide rail to achieve forced deviation correction;

3) During the downward movement of the coke tank lid, the gravity balance beam is suspended by the auxiliary hook of the elevator and moves downward with the coke tank lid; when the bottom surface of the positioning sleeve at the bottom of the lifting beam is far away from the top surface of the positioning support on the operating platform When 0.2~0.6m, the coke tank cover stops moving downward; the gravity balance beam begins to descend, and the balance force is applied to the coke tank cover through the guide rod to achieve gravity-assisted correction;

4) After the coke tank cover reaches balance, the coke tank cover continues to fall, and finally the positioning sleeve at the bottom of the lifting beam is set on the positioning support of the operating platform. At the same time, the coke tank cover achieves precise balance and is then covered on the coke tank.

Compared with the prior art, the beneficial effects of the present invention are:

1) The forced correction device is used in conjunction with the gravity-assisted correction device to achieve alignment and balance during the falling process of the coke tank cover, and to act as a buffer to ensure that the coke tank cover falls smoothly into place;

2) It can reduce the wear of the focus tank cover limit guide mechanism during capping operations and extend the service life of the coke tank cover;

3) The coke tank capping process is smoother, ensuring the smooth flow of dry quenching coke production and avoiding potential safety hazards in maintenance operations caused by misalignment of coke tank caps.

Description of the drawings

Figure 1 is a front view of a CDQ coke tank cover correction device according to the present invention (in order to avoid confusion in the drawing, the front and rear sets of forced correction devices are omitted, and only the left and right sets of forced correction devices are shown).

Fig. 2 is a view along direction A in Fig. 1 .

Figure 3 is a schematic structural diagram of the gravity-assisted correction device according to the present invention.

In the picture: 1. Coke tank cover 11. Lifting beam 12. Guide roller 13. Shaft end gland 14. Positioning sleeve 15. Reinforced oblique support 2. Forced correction device 21. Correction guide rail 22. Operating platform 23. Guide rail fixation Seat 24. Positioning support 3. Gravity-assisted entanglement device 31. Guide rod 32. Hinge support 33. Hinge shaft 34. Gravity balance beam 35. Sliding sleeve 36. Top baffle 37. Bolt

Detailed ways

The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings:

As shown in Figures 1 to 3, the dry quenching coke tank cover deviation correction device according to the present invention includes a forced deviation correction device 2 and a gravity-assisted deviation correction device 3; the forced deviation correction device 2 consists of 4 groups with two sides along the horizontal center line. It consists of two forced correction mechanisms arranged oppositely on the outside of the coke tank capping position. Each set of forced correction mechanisms includes a correction guide rail 21 and a positioning support 24; an operating platform 22 is provided outside the upper part of the coke tank capping position, and the correction guide rail 21 And the positioning support 24 is installed on the operating platform 22, and the correction guide rail 21 has a V-shaped structure; four sets of lifting beams 11 are arranged on the top outer side of the coke tank cover 1 and the deviation correction guide rail 21 in one-to-one correspondence, and the coke tank cover 1 lifts the cross beams after it falls. 11 falls into the opening of the correction guide rail 21 and slides along it; the bottom setting sleeve 14 of the lifting beam 11 cooperates with the positioning support 24 for positioning; the gravity-assisted correction device 3 consists of a guide rod 31, a sliding sleeve 35 and It consists of a gravity balance beam 34; the lower end of the guide rod 31 is hinged with the top center of the coke tank cover 1, and the middle part of the gravity balance beam 34 is slidingly connected to the guide rod 31 through a sliding sleeve 35.

A guide roller 12 is provided at one end of the lifting beam 11 that contacts the deflection guide rail 21 . A bearing is provided between the guide roller 12 and the lifting beam 11 . The outer end of the bearing is sealed by a shaft end gland 13 .

The lifting beam 11 is an L-shaped structure composed of a vertical rod and a horizontal rod. The bottom end of the vertical rod is fixedly connected to the coke tank cover 1, and the top of the vertical rod is connected to the inner end of the horizontal rod; between the horizontal rod and the vertical rod There are also reinforced diagonal supports 15.

The opening angle of the correction guide rail 21 is 45° to 65°.

The height of the top surface of the correction guide rail 21 from the top surface of the positioning support 24 is 1.2 to 1.5 m.

The top center of the coke tank cover 1 is provided with a hinge support 32, and the lower end of the guide rod 31 is hinged with the hinge support 32 through the hinge shaft 33; the top of the guide rod 31 is provided with a top baffle 36, and the top baffle 36 is connected through a bolt 37 Fixedly connected to guide rod 31.

The gravity balance beam 34 has a self-weight of 0.5 to 2t.

The correction guide rail 21 is installed on the operating platform 22 through the guide rail fixing seat 23 .

A dry quenching coke tank lid correction method includes the following steps:

1) After loading the red coke into the dry quenching furnace, the elevator drives the coke tank and coke tank cover 1 to move laterally to the lifting derrick, and the elevator lifts the coke tank cover 1 and begins to fall;

2) When the lifting beam 11 on the coke tank cover 1 approaches the correction guide rail 21, the elevator runs at low speed; the guide roller 12 on the lifting beam 11 moves downward along the opening of the correction guide rail 21 to achieve forced correction;

3) During the downward movement of the coke tank cover 1, the gravity balance beam 34 is suspended by the auxiliary hook of the elevator and moves downward with the coke tank cover 1; when the bottom surface of the positioning sleeve 14 at the bottom of the lifting beam 11 is in contact with the When the top surfaces of the positioning supports 24 are 0.2 to 0.6m apart, the coke tank cover 1 stops moving downward; the gravity balance beam 34 begins to descend, and the balance force is applied to the coke tank cover 1 through the guide rod 31 to achieve gravity-assisted correction;

4) After the coke tank cover 1 reaches balance, the coke tank cover 1 continues to fall, and finally the positioning sleeve 14 at the bottom of the lifting beam 11 is set on the positioning support 24 of the operating platform 22, and at the same time, the coke tank cover 1 achieves precise balance. On the coke pot.

In the CDQ coke tank lid deviation correction device of the present invention, the deviation correction guide rail is a V-shaped structure with an opening angle of 45° to 65°, and the deviation correction guide rail can be made of channel steel. The correction guide rail is fixed on the operating platform, and the height of its top surface from the top surface of the positioning support is 1.2 to 1.5m. The correction guide rail can bear the self-weight of the coke tank cover. When the coke tank cover falls and approaches the correction guide rail, the elevator runs at low speed, and both ends of the lifting beam enter the corresponding opening areas of the correction guide rail, and forced correction is achieved through the correction guide rail.

The lifting beam on the top of the coke tank cover bears the weight of the entire coke tank cover during the period when the coke tank cover falls until it falls into place. When the coke tank cover falls into place, the positioning sleeve at the bottom of the lifting beam is placed on the fixed support. In order to reduce the friction between the lifting beam and the correction guide rail during the falling process of the coke tank cover, guide rollers are respectively installed at the outer ends of the lifting beam. The guide roller is sleeved on the lifting beam and is rollingly connected to the lifting beam through bearings. The outer end of the guide roller is sealed with a shaft end gland to protect the internal bearing and prevent dust from entering.

The guide rod and the gravity balance beam form a gravity auxiliary balance device. The gravity balance beam has a dead weight between 0.5 tons and 2 tons. After the coke tank cover falls and the preliminary center alignment is adjusted by the forced correction device, the level of the coke tank cover is adjusted through the gravity balance beam. The gravity of the gravity balance beam is transmitted to the coke tank cover through the guide rod for gravity-assisted deviation correction. The gravity balance beam is slidingly connected to the guide rod through a sliding sleeve, and a baffle is set on the top of the guide rod to control the stroke of the gravity balance beam. The guide rod is connected to the coke tank cover in a hinged manner to relieve the stress on the guide rod and the coke tank cover and avoid frequent damage to the coke tank cover and guide rod due to impact.

The alignment connection between the positioning support and the positioning sleeve is the final positioning method of the coke tank cover, which can ensure the precise positioning of the coke tank cover. The positioning sleeve is installed at the bottom of the lifting beam, and the fixed support is fixed on the operating platform. When the coke tank cover is corrected by the forced correction guide rail and balanced by the gravity balance beam, it then falls smoothly and balancedly for the last part of the journey, and the positioning sleeve is exactly set. on the positioning support.

The above are only preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person familiar with the technical field can, within the technical scope disclosed in the present invention, implement the technical solutions of the present invention. Equivalent substitutions or changes of the inventive concept thereof shall be included in the protection scope of the present invention.

Claims (7)

1. The dry quenching coke tank cover deviation correcting method is realized based on a dry quenching coke tank cover deviation correcting device and is characterized in that the dry quenching coke tank cover deviation correcting device comprises a forced deviation correcting device and a gravity auxiliary deviation correcting device; the forced deviation correcting device consists of 4 groups of forced deviation correcting mechanisms which are arranged on the outer side of the coke tank capping position in a pairwise manner along the horizontal central line, and each group of forced deviation correcting mechanisms comprises a deviation correcting guide rail and a positioning support; an operation platform is arranged on the outer side of the upper part of the coke tank capping position, a correction guide rail and a positioning support are arranged on the operation platform, and the correction guide rail is of a V-shaped structure; 4 groups of lifting cross beams are arranged on the outer side of the top of the coke tank cover in one-to-one correspondence with the deviation correcting guide rails; the lifting beam falls into the opening of the deviation correcting guide rail after the coke tank cover falls down and slides down along the opening; a positioning sleeve is arranged at the bottom of the lifting beam and is matched with the positioning support for positioning; the gravity auxiliary deviation correcting device consists of a guide rod, a sliding sleeve and a gravity balance beam; the lower end of the guide rod is hinged with the center part of the top of the coke tank cover, and the middle part of the gravity balance beam is in sliding connection with the guide rod through a sliding sleeve; a guide idler is arranged at one end of the lifting beam, which is in contact with the deviation correcting guide rail, a bearing is arranged between the guide idler and the lifting beam, and the outer end of the bearing is sealed through a shaft end gland;

the method for correcting the deviation of the coke dry quenching tank cover comprises the following steps:

1) After the dry quenching furnace red coke is filled, the lifting machine drives the coke tank and the coke tank cover to transversely move to the lifting derrick, and the lifting machine lifts the coke tank cover to start falling;

2) When the lifting beam on the coke tank cover approaches the deviation correcting guide rail, the lifter runs at a low speed; the guide carrier roller on the lifting beam moves downwards along the opening of the deviation correcting guide rail to realize forced deviation correction;

3) In the downward moving process of the coke tank cover, the gravity balance beam is suspended by the auxiliary lifting hook of the lifting machine to move downwards along with the coke tank cover; when the distance between the bottom surface of the positioning sleeve at the bottom of the lifting beam and the top surface of the positioning support on the operating platform is 0.2-0.6 m, the coke tank cover stops moving downwards; the gravity balance beam starts to descend, and a balance force is applied to the coke tank cover through the guide rod to realize gravity auxiliary deviation correction;

4) After the coke tank cover reaches balance, the coke tank cover continuously falls, and finally the positioning sleeve at the bottom of the lifting beam is sleeved on the positioning support of the operating platform, and the coke tank cover covers the coke tank after accurate balance is realized.

2. The method for correcting the deviation of the coke dry quenching tank cover according to claim 1, wherein the lifting cross beam is of an L-shaped structure consisting of a vertical rod and a cross rod, the bottom end of the vertical rod is fixedly connected with the coke tank cover, and the top of the vertical rod is connected with the inner end of the cross rod; a reinforced inclined support is also arranged between the cross rod and the vertical rod.

3. The method for correcting the deviation of the coke dry quenching tank cover according to claim 1, wherein the opening angle of the correcting guide rail is 45-65 degrees.

4. The method for correcting the coke dry quenching tank cover according to claim 1, wherein the height of the top surface of the correcting guide rail from the top surface of the positioning support is 1.2-1.5 m.

5. The method for correcting the deviation of the coke dry quenching tank cover according to claim 1, wherein a hinged support is arranged at the center of the top of the coke tank cover, and the lower end of the guide rod is hinged with the hinged support through a hinged shaft; the top baffle is established at the top of guide bar, and top baffle passes through bolt and guide bar fixed connection.

6. The method for correcting the deviation of the coke dry quenching tank cover according to claim 1, wherein the gravity balance beam has a dead weight of 0.5-2 t.

7. The method for correcting the deviation of the coke dry quenching tank cover according to claim 1, wherein the deviation correcting guide rail is arranged on the operation platform through a guide rail fixing seat.