CN114806608A

CN114806608A - Regenerator of coke oven

Info

Publication number: CN114806608A
Application number: CN202210408399.1A
Authority: CN
Inventors: 黎耀南; 夏春; 梅俊
Original assignee: China First Metallurgical Group Co Ltd
Current assignee: China First Metallurgical Group Co Ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-07-29
Anticipated expiration: 2042-04-19
Also published as: CN114806608B

Abstract

The application discloses a regenerator for a coke oven. In the technical scheme, when the checker bricks are required to be disassembled and replaced, the bricks of the checker bricks are only required to be moved by external force operation until the positioning grooves formed in the wall body of the regenerator are separated, and the checker bricks can be installed on the wall body of the regenerator at the moment. Because the boss of the brick body and the positioning groove of the wall body of the regenerator are inserted and installed and the inserting directions of the boss and the positioning groove are generally perpendicular to the arrangement direction of the checker brick layer, when a certain layer of checker brick layer is disassembled and replaced, the disassembling and replacing operation cannot touch the checker bricks on the surrounding layers, so that any checker brick layer can be disassembled, the original installation positions of the checker bricks on the surrounding layers cannot be influenced, and the disassembling and replacing difficulty is effectively reduced.

Description

Regenerator of coke oven

Technical Field

The application relates to the technical field of industrial furnace construction, in particular to a regenerator of a coke oven.

Background

The coke oven checker brick is a porous refractory brick, and high-temperature flue gas waste heat discharged by a combustion chamber is recovered in a heat storage chamber through alternative heat storage and heat release. In the use process of the coke oven, the checker bricks stacked on the upper part of the regenerator are easy to damage because the dust brought in the coal gas is deposited on the surface of the checker brick at the top layer, the checker bricks are accumulated for a long period of time, the high temperature of the dust and other factors can cause the softening, deformation and foaming of the check holes of the checker bricks, further the upper layer of the checker bricks are blocked, and the regenerator needs to be overhauled on line to replace the checker bricks.

In the related art, the checker bricks need to be disassembled and replaced in the process of overhauling the checker bricks. However, when the checker bricks are disassembled and replaced, the lower checker bricks are prone to toppling over, and the difficulty in disassembling and replacing is increased.

Disclosure of Invention

In view of this, the present application provides a regenerator for a coke oven, which can reduce the difficulty of replacing checker bricks.

In a first aspect, the application provides a regenerator for a coke oven, comprising a wall body for enclosing a chamber cavity, wherein a plurality of checker brick layers are arranged in the chamber cavity along the layer height direction;

wherein the checker brick forming the checker brick layer comprises a brick body, and the brick body is provided with a boss;

the wall body is provided with positioning grooves extending in a direction substantially perpendicular to the floor height, and the positioning grooves are used for the bosses to be inserted in the extending direction of the positioning grooves so that the checker bricks are installed on the wall body, or are used for the bosses to be separated in the extending direction of the positioning grooves so that the checker bricks installed on the wall body can be detached in the extending direction.

Optionally, the surface of the brick body is configured with brick grooves.

Optionally, the middle part of the brick body is provided with a dome part presenting a convex shape, and two ends of the dome part extend to positions communicated with the brick groove.

Optionally, the brick body is configured with transverse bars.

Optionally, the brick body is configured with a grid hole.

In a second aspect, the present application provides a tile pushing device, comprising:

the bracket comprises a first supporting rod and a second supporting rod which are mutually and rotatably connected;

a support plate disposed at least at the ends of the first and second support rods for supporting the checker bricks of the regenerator;

and a plurality of rollers which are arranged at the ends of the first support rod and the second support rod and are used for supporting in positioning grooves on the wall body of the heat storage chamber when the supporting plate is positioned on the brick body.

Optionally, the rotary connection portion of the first support rod and the second support rod is provided with a torsion spring.

Optionally, a centering block is provided on the support plate to center the checker bricks.

In a third aspect, the present application provides a brick hook, comprising a rod body, wherein a hook head for hooking into a grid hole on the lattice brick is arranged on the rod body.

When the checker bricks in the heat storage chamber need to be disassembled and replaced, the checker bricks can be installed on the wall of the heat storage chamber only by moving the bricks of the checker bricks until the bricks are separated from the positioning grooves formed in the wall of the heat storage chamber through external force operation. Because the boss of the brick body and the inserting installation of the positioning groove of the wall body are relied on and the inserting direction of the boss and the positioning groove is substantially perpendicular to the arrangement direction of the checker brick layer, when a certain layer of checker brick layer is detached and replaced, the detaching and replacing operation can not touch the checker bricks on the surrounding layers, so that any checker brick layer can be detached, the original installation position of the checker bricks on the surrounding layers can not be influenced, and the detaching and replacing difficulty is effectively reduced.

Drawings

The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.

FIG. 1 is a side view of a wall of a regenerator provided in accordance with an embodiment of the present disclosure.

Fig. 2 is a perspective view of a wall of a regenerator according to an embodiment of the present disclosure.

Fig. 3 is a block diagram of a wall body provided with checker bricks according to an embodiment of the present application.

Fig. 4 is a block diagram of a wall body provided with checker bricks according to yet another embodiment of the present application.

Fig. 5 is a structural diagram of the brick pushing device in installation according to the embodiment of the present application.

Fig. 6 is a block diagram of a brick pushing device applied to checker bricks according to an embodiment of the present application.

Fig. 7 is a structural diagram of a brick pushing device provided in an embodiment of the present application.

Fig. 8 is a block diagram of the application embodiment providing the brick hooks to act on the checker bricks.

Wherein the elements in the figures are identified as follows:

100-checker bricks; 120-brick body; 120 a-cells; 120 b-brick groove; 130-a boss; 140-crown; 150-transverse partition ribs;

200-a wall body; 200 a-a positioning groove; 210-a main wall; 220-single wall; 230-partition walls;

300-a brick pushing device; 320-a bracket; 321-a first strut; 322-a second strut; 331-a pallet; 332-center block; 340-rolling; 350-torsion spring; 360-a handle; 370-wheel seat;

400-brick hook; 420-a rod body; 430-hook head.

500-regenerator.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to 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 mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Before the technical solutions of the present application are introduced, it is necessary to explain the background of the invention of the present application.

It is common that, in the coke oven, the checker bricks 100 stacked on the upper part of the regenerator are easily damaged because the dust carried in the gas is deposited on the surface of the checker brick 100 on the top layer, and the dust is accumulated over the years, and the high temperature of the dust causes the reflowing, deformation and foaming of the cells 120a of the checker bricks 100, and further causes the blockage of the upper layer checker bricks 100, and the regenerator needs to be overhauled on line to replace the checker bricks 100.

In the related art, checker bricks 100 are installed layer by layer in a stacked manner. In the maintenance process, the checker bricks of any layer cannot be replaced. Specifically, for replacing the checker brick 100 located at the bottom, the upper checker brick 100 is pressed against the surface of the lower checker brick 100, and dragging the lower checker brick 100 inevitably causes the upper checker brick 100 to loosen. In the checker brick 100 to be replaced at the upper layer, the checker bricks 100 stacked one on top of another are partially melted at the contact surface between layers and are stuck together in the high-temperature environment of the regenerator 500 where the checker bricks 100 are located. Due to the blocking phenomenon, the dragging of the lower grid may be intensified. It is thus understood that the replacement of the target checker brick 100 is likely to affect other surrounding checker bricks.

In summary, in the related art, there is a great technical difficulty in replacing the grid brick 100.

Based on the above-mentioned problems, the inventors of the present invention propose checker bricks 100 and a wall 200 of a regenerator of a coke oven regenerator, wherein when the checker bricks 100 need to be disassembled and replaced, the bricks 120 of the checker bricks 100 are moved to be separated from positioning grooves 200a formed in the wall 200 of the regenerator by external force operation, and at this time, the checker bricks 100 can be mounted on the wall 200 of the regenerator. Because the lug boss 130 of the brick body 120 is inserted into the positioning groove 200a of the wall 200 of the regenerator and the inserting direction of the lug boss and the positioning groove is generally perpendicular to the arrangement direction of the checker brick 100 layers, when a certain layer of checker bricks 100 is disassembled and replaced, the disassembling and replacing operation cannot touch the checker bricks 100 on the surrounding layers, so that any layer of checker bricks 100 can be disassembled, the original installation position of the checker bricks 100 on the surrounding layers cannot be influenced, and the disassembling and replacing difficulty is effectively reduced. Therefore, the invention is created.

Referring to fig. 1 to 3, the embodiment of the application provides a regenerative chamber of a coke oven, and a wall 200 for enclosing a chamber cavity is provided, wherein a plurality of checker brick layers are arranged in the chamber cavity along the layer height direction.

Wherein, the checker brick 100 comprises a brick body 120 provided with a boss 130;

the wall 200 is provided with a positioning groove 200a extending substantially perpendicular to the floor height direction, and the positioning groove 200a is used for the boss 130 to be inserted along the extending direction of the positioning groove 200a so that the checker brick 130 is installed on the wall 200, or is used for the boss 130 to be detached along the extending direction of the positioning groove 200a so that the checker brick 100 installed on the wall 200 can be detached along the extending direction.

The term "layer height direction" as used herein refers to the height of a single layer of checker bricks 100 or the height of all layers of checker bricks, and as a more general application, the layer height direction generally coincides with the height of the regenerator 500. Of course, the height direction may not be the same as the height of the regenerator 500, depending on the stacking arrangement of the layers.

The boss 130 may be integrally formed with the brick body 120. The shape of the boss 130 may be a square bar shape, or other shapes according to actual needs.

The position of the boss 130 relative to the brick body 120 is exemplarily located at both ends (in the longitudinal direction) of the brick body 120, but may be a side edge (in the width direction), and the position does not substantially affect the effect of the present application.

In an exemplary embodiment, the brick body 120 is configured with a grid 120 a.

Design considerations for the grid holes 120a are: the heat in the heat storage chamber is conveniently circulated up and down through the cells 120 a.

In an exemplary embodiment, the surface of the brick body 120 is configured with a brick groove 120 b.

Thus, the design considerations for the brick wells 120b are: when the checker bricks 100 are installed in the topmost position of the regenerator wall 200, they are susceptible to the problems of dust deposition as previously mentioned. While the brick channel 120b facilitates the collection of dust deposits to reduce dust falling into the cells 120a of the top checker brick 100 to clog the checker brick 100.

It should be understood that it is most apparent from the function or function of the crown 140 in the foregoing, for the checker brick 100 located at the top level. For the non-top checker brick 100, reference is again made to fig. 4, which may omit the design of the brick channel 120 b.

As for the shape of the brick groove 120b, the cross section thereof may be U-shaped or arc-shaped, such as circular arc-shaped or elliptical arc-shaped.

Here, in order to further improve the deposition of dust into the brick groove 120b and reduce the deposition of dust into the cells 120a to block the cells 120a, a dome portion 140 having a convex shape is disposed at the middle of the brick body 120, and both ends of the dome portion 140 extend to positions communicating with the brick groove 120 b.

In this way, the dust will gradually flow toward the brick tub 120b through the crown 140 to facilitate the flow of the dust to the brick tub 120b finally. Moreover, even when dust falls on the surface of the grid hole for a short time, it is more likely to gradually slide down toward the brick groove 120b along the crown portion 140 until finally sliding down into the brick groove 120 b.

Referring again to fig. 4, it should be understood that it is most apparent from the function or function of the forward dome 140 for the checker brick 100 located at the top level. For a non-top checker brick 100, the design of the dome 140 may be omitted.

In an exemplary embodiment, the brick 120 is configured with transverse spacer ribs 150.

Here, the design considerations of the transverse ribs 150 are: a risk between checker bricks 100 may be artificially created, facilitating the flow of heat. In addition, the transverse ribs 150 can contribute to the enhancement of the mechanical strength of the brick body 120.

Referring again to fig. 1-4, the regenerator wall 200 may be configured as desired, for example, including a main wall 210, a single wall 220, and a partition 230.

Referring to fig. 5-7, the present application provides a tile pushing device 300 comprising:

a bracket 320 including a first support rod 321 and a second support rod 322 rotatably connected to each other;

a support plate 331 which is disposed at least at the end portions of the first support bar 321 and the second support bar 322 and supports the brick body 120 of the checker brick 100;

and a plurality of rollers 340 disposed at the ends of the first and second support bars 321 and 322 to be supported in the positioning grooves 200a of the wall 200 of the regenerator when the pallet 331 supports the brick 120.

In the brick pushing apparatus 300 having the above-described structure, when the checker bricks 100 are placed on the supporting plate 331 during the brick pushing operation, the first supporting rod 321 and the second supporting rod 322 form a clamping force to the bricks as long as the first supporting rod 321 or the second supporting rod 322 is rotated by an external operation, that is, the first supporting rod 321 and the second supporting rod 322 are drawn together. After the clamping operation is maintained, the first rod 321 and the second rod 322 are translated and run by the rollers 340, so that the checker bricks 100 can be moved to a predetermined mounting position.

Here, it has been described that this clamping operation of holding the first and

second struts

321, 322 is a necessary condition for bringing the checker brick 100 into motion. To eliminate the reliance on manual long-term application of clamping, the rotational connection of the first and

second struts

321, 322 is provided with a torsion spring 350.

Thus, the torsion spring 350 can generate an elastic force to rotate the first and

second levers

321 and 322 to reduce the dependence on manual clamping, thereby keeping the roller 340 supported in the groove of the positioning groove 200 a.

As an exemplary implementation manner of the supporting plate 331, the supporting plate 331 is further provided with a centering block 332.

The purpose of the centering block 332 is here to center the moving checker brick 100 in relation to the already installed checker bricks of the other layers, so that the holes 120a of the checker bricks of the different layers can be made to pass through each other. The centering block 332 may be formed of two convex blocks.

As for the installation manner of the roller 340, a roller seat 370 and the like may be provided, which will not be described herein.

In order to facilitate the operation of the holder 320 by external force, a handle 360 may be provided on the holder 320.

The number of the rollers 340 may be four as an implementation manner as shown in fig. 5, that is, two rollers 340 are respectively disposed on the first supporting rod 321 and the second supporting rod 322. This allows a better stability.

Of course, the number of the rollers 340 may be two without considering stability, that is, one roller 340 is disposed on each of the first supporting rod 321 and the second supporting rod 322, and at this time, the end of the first supporting rod 321 and the end of the second supporting rod 322 where no roller 340 is disposed are supported in the positioning groove 200a of the wall 200 in a sliding manner.

Referring to fig. 8, the present application provides a brick hook 400, which includes a rod body 420, wherein the rod body 420 is provided with a hook head 430 for hooking into the grid hole 120a of the lattice brick 100.

In the brick hook 400 with the above-mentioned structure, when the hook head 430 is inserted into the grid hole 120a, the user can pull the rod body 420 by hand to pull the checker brick 100 out of the positioning slot 220a of the wall.

The hook head 430 may have an L-shape or a "n" shape as shown in fig. 8. Of course, an arc-shaped curve or the like may be used.

The operation of the present application for removing and replacing checker bricks 100 will now be described with respect to a common application scenario. It should be noted that this common embodiment is not to be taken as an identification basis for understanding the essential features of the technical problem to be solved as claimed in the present application, which is merely exemplary.

S1, in the stage of building the regenerator, building the main wall 210 and the single wall 220 of the regenerator and stacking the checker bricks 100 alternately, after the main wall 210 and the single wall 220 of the regenerator are built, cleaning mud and ash scars on the wall surface, stacking the checker bricks 100 from the center of the coke oven to the jambs on two sides, and simultaneously building the partition walls 230. After the stacking of the checker bricks 100 is finished, a protective layer is laid to prevent the pollution of masonry slurry during upper construction.

S2, laying on the top of the regenerator by the above method, and placing sub-top checker bricks 100 on the grooves of the main wall 210 and the single wall 220 of the regenerator. A single brick may be advanced from the entrance of the burner until it butts against a previously installed brick and then the brick is held centered by manual adjustment. And the roller 340 is horizontally moved in the grooves of the regenerator main wall 210 and the single wall 220, and a pallet is further provided at one side of the support 320 to receive the top checker bricks 100 or the sub-top checker bricks 100. A centering pallet 331 is provided on the pallet for centering the top checker brick 100, improving the installation through-hole rate of the lower checker brick 100 and the top checker brick 100.

S3, the top checker brick 100 is installed according to S2.

S4, top checker brick 100 and top checker brick 100 are removed and replaced by brick hooks 400 during the hot repair phase of production. The brick hook comprises a hook head and a long rod, wherein the hook head is a single-tooth or multi-tooth hook, and is laterally inserted into a brick layer gap of an upper checker brick and a lower checker brick during use, and then the hook head rotates by 90 degrees to enable the hook teeth to be inserted into the grid holes 120a and pulled out of a furnace mouth for replacement. The brick hook can also install top layer checker bricks or secondary top layer checker bricks in the heat storage chamber.

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 changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.

Claims

1. The regenerator of the coke oven is characterized by comprising a wall body for enclosing a chamber cavity, wherein a plurality of layers of checker bricks are arranged in the chamber cavity along the layer height direction;

2. The regenerator of claim 1, wherein the surface of the brick is configured with brick grooves.

3. The regenerator as claimed in claim 2, wherein the middle of the brick is provided with a dome portion having a convex shape, and both ends of the dome portion extend to positions communicating with the brick groove.

4. The regenerator of claim 1, wherein the brick is configured with transverse ribs.

5. The regenerator of claim 1, wherein the brick is configured with cells.

6. A brick pushing device is characterized by comprising:

a support plate disposed at least at the ends of the first and second struts and supporting the checker bricks of the regenerator of claim 1;

and a plurality of rollers disposed at the ends of the first and second struts for supporting in the positioning grooves on the wall of the regenerator of claim 1 when the pallet is supported on the brick.

7. The tile pushing device according to claim 1, wherein the rotational connecting portion of the first and second struts is provided with a torsion spring.

8. A tile pushing device according to claim 1, wherein the support plate is provided with a centering block for centering the checker bricks.

9. A brick hook comprising a rod body having a hook head for hooking into a hole in a checker brick of a regenerator as claimed in claim 1.