CN216005755U

CN216005755U - Integral furnace door with elastic knife edge seal for coke oven

Info

Publication number: CN216005755U
Application number: CN202121436307.8U
Authority: CN
Inventors: 邹力; 胡迎华
Original assignee: ENGINEERING TECHNOLOGY CO Ltd UNIVERSITY OF SCIENCE AND TECHNOLOGY LIAONING
Current assignee: ENGINEERING TECHNOLOGY CO Ltd UNIVERSITY OF SCIENCE AND TECHNOLOGY LIAONING
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2022-03-11
Anticipated expiration: 2031-06-28

Abstract

The utility model relates to the technical field of heat recovery coke ovens in the metallurgical industry, in particular to an integral oven door with an elastic knife edge seal for a coke oven. The utility model has the beneficial effects that: 1) the integral furnace door body shortens the height of the furnace door, improves the sealing effect and improves the environmental protection grade of the coke furnace; the solar cell has the characteristics of simple structure, light weight of the single body, small volume, easy manufacture, easy installation, easy replacement and the like; 2) the raw gas is reduced to escape from the furnace door in a large amount in the coal charging and coke pushing processes, and the dust removal burden is reduced; the furnace body and refractory materials are prevented from being damaged by the rapid temperature drop in the furnace hearth, and the service life of the coke oven is prolonged; 3) the temperature of the furnace hearth is quickly raised, the coking time is shortened, and the coke yield is improved; 4) the primary air inlet is not arranged on the furnace door body, so that the vibration and the damage of the regulating valve caused by frequent picking can be avoided.

Description

Integral furnace door with elastic knife edge seal for coke oven

Technical Field

The utility model relates to the technical field of heat recovery coke ovens in the metallurgical industry, in particular to an integral oven door with elastic knife edge sealing for a coke oven.

Background

At present, there are two types of heat recovery furnace doors in the metallurgical industry in the prior art: the traditional heat recovery furnace door is divided into an upper furnace door and a lower furnace door, wherein the upper furnace door and the lower furnace door are lined with ceramic fibers, the furnace door is directly pressed on a protection plate, and a rigid hard sealing structure is adopted. There are: poor sealing effect, serious furnace door burning loss, frequent maintenance and replacement and the like. The other heat recovery furnace door is an integral furnace door for a clean, environment-friendly and full-energy intelligent coke furnace disclosed by the Chinese utility model with the patent application number of 201920501520.9, and consists of a furnace door body, a jacking seat configuration device, a carrier roller, a connecting rod, a crank, a door lifting hook, an adjusting bolt, a machine coke side guide seat, an air inlet door, a furnace drying hole, a sliding plate, a knife edge web plate, an upper brick groove and a lower brick groove, wherein the furnace door body is of a hexagonal structure and is cast by vermicular cast iron; the top pressing seat configuration devices are uniformly arranged at the edge of the hexagonal periphery of the furnace door body; the lower part of the carrier roller is arranged on a supporting seat of a coke oven protection plate and is fixedly connected with the two sides of the upper part of the oven door body through bolts; the crank is fixedly connected with the furnace door body through a tight screw rod; the door lifting hook is fixedly connected with the furnace door body through a rivet; the furnace door body is connected with the sliding plate and the like through the sliding block by the adjusting bolt; the machine coke side guide seats are arranged at two sides of the furnace door body; 3 air inlet doors are uniformly arranged on the sliding plate in the opening of the furnace door body; the oven hole is arranged at the lower part of the oven door body; the brick groove at the upper part of the furnace door body and the brick groove at the lower part are connected with the sliding plate and the knife edge web plate through double-end studs and nuts; the lower brick groove is lined with refractory bricks, and the upper brick groove is lined with refractory bricks and is sealed by castable. In the production practice process, the problem that the integral furnace door is inconvenient to operate is found, the experience is summarized, and the technical improvement is carried out on the basis of the original integral furnace door.

Disclosure of Invention

The utility model aims to provide an integral furnace door with an elastic knife edge seal for a coke furnace, which overcomes the defects of the prior art, and the integral furnace door body reduces the manufacturing difficulty and cost of a protection plate and the furnace door and improves the sealing effect; three primary air inlet regulating valves at the upper part of the conventional furnace door are omitted, so that frequent picking along with the coal charging and door pushing actions of the furnace door is avoided, and the operation convenience is improved; the installation direction of the connecting rod device enables the brick groove to better slide in the vertical direction during thermal expansion; the handle of the crank is lengthened, so that the crank rotating into the furnace column locking pad can better transmit force to the knife edge, and the knife edge is better sealed; the size of the furnace openings at two sides of the coke oven machine is reduced, and the raw coke oven gas is prevented from escaping from the furnace openings in a large amount in the processes of coal charging and coke pushing.

In order to solve the above problems, the present invention adopts the following technical solutions.

An integral furnace door with elastic knife edge sealing for a coke furnace comprises a furnace door body, a top pressing seat, a carrier roller, a connecting rod device, a crank, a door lifting hook, an adjusting bolt, a machine coke side guide seat, a slide block, a furnace drying hole, a slide plate, a knife edge web plate and a brick groove, wherein the furnace door body is cast by vermicular cast iron; the jacking seats are uniformly arranged at the peripheral edge of the furnace door body; the carrier rollers are fixedly connected to two sides of the upper part of the furnace door body by bolts; the single supporting seat of the connecting rod device is connected with the sliding plate, the double supporting seats are connected with the furnace door body, and the single supporting seat and the double supporting seats are connected through a connecting rod, a shaft and a shaft sleeve; the crank is connected with the furnace door body by a tight screw rod; the door lifting hook is fixedly connected with the furnace door body by a rivet; the furnace door body is connected with the sliding plate through the sliding block by the adjusting bolt; the machine coke side guide seats are arranged on two sides of the furnace door body; the oven hole is arranged at the lower part of the oven door body, and the carrier roller is hung on the supporting seat of the protection plate; an anchoring claw and a refractory castable material with a heat insulation function are arranged in the brick groove, and the brick groove, the sliding plate and the knife edge web plate are connected with the furnace door body through a double-end stud and a nut; the oven door is characterized in that the brick groove is of an integral structure, a primary air inlet is not formed in the oven door body, and the crank is connected with the oven door body through a tight screw rod.

Further, the furnace door body is any one of rectangle, hexagon or octagon with length of 3200-.

Furthermore, the connecting rod device comprises a single supporting seat, two supporting seats and a connecting rod, the single supporting seat is connected with the sliding plate, the two supporting seats are connected with the furnace door body, and the single supporting seat is connected with the two supporting seats through the connecting rod.

Furthermore, the refractory castable in the brick groove is a one-step casting monolithic castable.

Furthermore, the depth L of the tray positioned at the bottom of the brick groove is 255-300 mm.

Furthermore, one end of the anchoring claw is provided with threads, and the anchoring claw is matched and connected with the threaded hole in the brick groove.

Further, the anchoring claw is any one of Y-shaped, V-shaped, S-shaped and U-shaped.

Further, the handle length M of the crank is 140-250 mm.

Compared with the prior art, the utility model has the beneficial effects that: 1) the integral furnace door body shortens the height of the furnace door, improves the sealing effect and improves the environmental protection grade of the coke furnace; the single-body type solar cell has the characteristics of simple structure, light weight of the single body, small volume, easiness in manufacturing, installation and replacement, saving of casting, installation, maintenance and replacement costs, improvement of enterprise economic benefits and the like; 2) the size of furnace mouths on two sides of the coke oven machine is reduced, the large escape of raw coke gas from the furnace mouths in the coal charging and coke pushing processes is reduced, the dust removal burden is reduced, and the environment protection is facilitated; the furnace body and refractory materials are prevented from being damaged by the rapid temperature drop in the furnace hearth, and the service life of the coke oven is prolonged; 3) the temperature of the furnace hearth is quickly raised, the coal cake is quickly matured, the coking time is shortened, and the coke yield is improved; 4) the furnace door body is not provided with a primary air inlet regulating valve, but is arranged on the protective plate instead, so that the vibration and the damage of the regulating valve caused by frequent picking along with the coal charging and door pushing actions of the furnace door are avoided; 5) an anchoring claw is arranged in the brick groove and used for supporting the refractory pouring material so that the refractory pouring material is firmly fixed in the brick groove; 6) the handle of the crank is lengthened, so that the crank rotating into the furnace column locking pad can better transmit force to the knife edge, and the knife edge is better sealed.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a sectional view taken along line a-a of fig. 1.

Fig. 3 is a sectional view taken along line B-B in fig. 1.

In the figure: 1-furnace door body, 2-top pressure seat device, 3-carrier roller, 4-connecting rod device, 5-crank, 6-lifting door hook, 7-adjusting bolt, 8-machine coke side guide seat, 9-slide block, 10-furnace drying hole, 11-slide plate, 12-knife edge and web plate, 13-brick groove, 14-anchoring claw, 15-furnace column locking pad, 16-protective plate, 17-single supporting seat, 18-double supporting seat and 19-connecting rod.

Detailed Description

The technical solution of the present invention is further illustrated by the following examples:

in the description of the present invention, it should 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; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, which are schematic structural views of an embodiment of an integral furnace door with an elastic knife edge seal for a coke furnace, the furnace door body 1 is a rectangular structure and is cast by vermicular cast iron; the top pressing seats 2 are uniformly arranged at the peripheral edges of the furnace door body 1; the carrier rollers 3 are fixedly connected with the two sides of the upper part of the furnace door body 1 by bolts; the double supporting seats 18 in the connecting rod device 4 are connected with the oven door body 1, the single supporting seat 17 in the connecting rod device 4 is fixedly connected with the sliding plate 11 by bolts, and the single supporting seat 17 is connected with the double supporting seats 18 by the connecting rod 19, so that the brick groove 13 can better slide in the vertical direction during thermal expansion; the crank 5 is fixedly connected with the furnace door body 1 by adopting a tight screw rod; the door lifting hook 6 is fixedly connected with the furnace door body 1 by a rivet; the adjusting bolt 7 connects the furnace door body 1 with the sliding plate 11 and the like through the sliding block 9; the machine coke side guide seats 8 are arranged at two sides of the furnace door body 1; the sliding block 9 is welded on the sliding plate 11; the oven hole 9 is arranged at the lower part of the oven door body 1; the brick groove 13 adopts an integral structure and is connected with the furnace door body 1 through a slide plate 11, a knife edge and a web plate 12 by a double-end stud and a nut; an anchoring claw 14 is arranged in the brick groove 13; brick groove 13 is changed into integral by original sectional type, and the monoblock refractory castable of inside pouring has avoided the body cast iron part of brick groove segmentation junction and the indoor high temperature flue gas direct contact of carbomorphism, prevents that the brick groove scaling loss is serious. The brick groove 13 is lined with refractory castable to play a role in heat insulation; the anchoring claws 14 are used for fixing the refractory castable; the carrier roller 3 is hung on the supporting seat of the protection plate; the crank 5 is an important part for fixing the furnace door, the handle length M of the crank 5 is 140-250 mm, so that the crank rotating into the furnace column locking pad can better transmit force to the knife edge, and the knife edge is better sealed. Operating a crank 5 through a door picking and hanging mechanism of the coal-charging coke pusher, rotating the crank 5 into a furnace column locking pad 15, applying pressure to a furnace door to enable a knife edge 12 of the furnace door to be tightly sealed with a sealing surface of a protection plate 16, and hanging and closing the furnace door at furnace mouths at two ends of coke oven carbonization through the close fit of the door picking and hanging mechanism of the coal-charging coke pusher, the protection plate and the furnace column to form a sealing structure for preventing coal gas in a carbonization chamber from escaping outwards and preventing outdoor air from entering; the furnace door picking and hanging mechanism of the coal-charging coke pusher rotates the crank out of the furnace column locking pad 15 to open the furnace door.

In the embodiment, the rectangular shape of the furnace door body 1 shortens the height of the furnace door and reduces the manufacturing difficulty and cost of the furnace door; the external dimension of the furnace door body 1 is any one of the ranges of 3200 minus one plus one minus one plus one minus one plus one minus one plus one minus one plus one minus one plus one. The shape of the oven door body 1 can be any one of a hexagonal structure, a rectangular structure and an octagonal structure, and the technical purpose of the utility model can be realized. The embodiment reduces the size of the furnace opening of the furnace door body 1, reduces a large amount of raw coke oven gas escaping from the furnace opening in the coal charging and coke pushing processes, reduces the dust removal burden, and is beneficial to environmental protection. Meanwhile, cold air is reduced from passing through the furnace hearth, the furnace body and refractory materials are prevented from being damaged due to the rapid temperature reduction in the furnace hearth, and the service life of the coke oven is prolonged. Because the temperature of the furnace chamber is ensured, the temperature of the furnace body is quickly raised, the coal cake is quickly matured, the coking time is shortened, and the coke yield is improved.

The oven door body is not provided with three primary air inlet regulating valves and is placed on the protective plate 16, so that frequent picking along with the coal charging and door pushing actions of the oven door is avoided, and the operation convenience is improved.

In the embodiment, the depth L of the tray at the bottom of the brick groove 13 is 255-300 mm, and the depth size is reduced, so that the inner size of the brick groove body entering the carbonization chamber is reduced, and the brick groove body is protected from being burnt by high-temperature flue gas; an anchoring claw 14 is arranged in the brick groove and used for supporting the refractory casting material, so that the refractory casting material is firmly arranged in the brick groove 13; the anchoring claw 14 may be any one of a Y-shaped, V-shaped, S-shaped, U-shaped anchoring claw. One end of the anchoring claw 14 can be provided with threads, and the threaded holes on the brick groove 13 are connected to strengthen the holding of the refractory casting material.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof.

Claims

1. An integral furnace door with elastic knife edge sealing for a coke furnace comprises a furnace door body, a top pressing seat, a carrier roller, a connecting rod device, a crank, a door lifting hook, an adjusting bolt, a machine coke side guide seat, a slide block, a furnace drying hole, a slide plate, a knife edge web plate and a brick groove, wherein the furnace door body is cast by vermicular cast iron; the jacking seats are uniformly arranged at the peripheral edge of the furnace door body; the carrier rollers are fixedly connected to two sides of the upper part of the furnace door body by bolts; the connecting rod device is fixedly connected with the furnace door body and the sliding plate; the crank is connected with the furnace door body by a tight screw rod; the door lifting hook is fixedly connected with the furnace door body by a rivet; the furnace door body is connected with the sliding plate through the sliding block by the adjusting bolt; the machine coke side guide seats are arranged on two sides of the furnace door body; the oven hole is arranged at the lower part of the oven door body, and the carrier roller is hung on the supporting seat of the protection plate; an anchoring claw and a refractory castable material with a heat insulation function are arranged in the brick groove, and the brick groove, the sliding plate and the knife edge web plate are connected with the furnace door body through a double-end stud and a nut; the oven door is characterized in that the brick groove is of an integral structure, a primary air inlet is not formed in the oven door body, and the crank is connected with the oven door body through a tight screw rod.

2. The integrated furnace door with the elastic knife edge seal for the coke furnace as claimed in claim 1, wherein the furnace door body is any one of rectangle, hexagon or octagon with length of 3200-.

3. The integrated furnace door with the elastic knife edge seal for the coke furnace according to claim 1, characterized in that the connecting rod device comprises a single supporting seat, double supporting seats and a connecting rod, wherein the single supporting seat is connected with the sliding plate, the double supporting seats are connected with the furnace door body, and the single supporting seat and the double supporting seats are connected through the connecting rod.

4. The integrated furnace door with the elastic knife edge seal for the coke furnace according to claim 1, characterized in that the refractory castable inside the brick groove is a one-step casting monolithic castable.

5. The integral furnace door with the elastic knife edge seal for the coke furnace as claimed in claim 1, wherein the depth L of the tray at the bottom of the brick groove is 255-300 mm.

6. The integrated furnace door with the elastic knife edge seal for the coke furnace as claimed in claim 1, wherein one end of the anchoring claw is provided with screw threads which are matched and connected with the screw holes on the brick groove.

7. The integrated furnace door with the elastic knife edge seal for the coke furnace according to claim 6, characterized in that the anchoring claw is any one of Y-shaped, V-shaped, S-shaped and U-shaped anchoring claws.

8. The integral furnace door with the elastic knife edge seal for the coke furnace as claimed in claim 1, wherein the handle length M of the crank is 140-250 mm.