Refractory coke drum

Abstract

The dry quenching coke tank made of refractory material relates to coke oven machinery technology field in coking industry, and particularly relates to a dry quenching coke tank made of refractory material. The inner side of the upper cone part of the upper part of the coke tank body is assembled with a metal lining plate through a hook and a bolt; the inner side of the straight section part of the middle part of the coke tank body is assembled with low-density refractory precast blocks; the inner side of the lower cone part of the lower part of the coke tank body is assembled with high-density refractory precast blocks; the coke tank body and the low-density refractory precast blocks and the coke tank body and the high-density refractory precast blocks are filled with light heat-insulating pouring material, which plays a heat-insulating and heat-preserving role; the transition part between the straight section part and the lower cone part of the inner side of the coke tank body, the bottom of the lower cone part and the upper part of the coke tank bottom gate are all poured with high-density pouring material; the coke tank bottom gate is installed with a bottom gate outer ring lining plate made of heat-resistant cast steel. The technical scheme of the present application solves the problems of long construction period, local easy damage of refractory material, coke jamming at the damaged part, and inability to repair in time in the prior art.

Description

Technical Field

[0001] This invention relates to the field of coke oven machinery technology in the coking industry, and particularly to a dry quenching coke can made of refractory material. Background Technology

[0002] Rotary coke cans are used to transport red coke pushed out of the carbonization chamber. The coke cans are transported to the dry quenching hoisting shaft by electric locomotives and coke can trolleys, and the red coke is loaded into the dry quenching furnace by hoisting and loading devices.

[0003] Most existing refractory coke ovens are made entirely of cast-in-place refractory material. These refractory coke ovens have the following main disadvantages:

[0004] 1. The construction period for integral casting of refractory materials is long. In the early stage of casting, it is necessary to fix the formwork. After solidification, the formwork is removed and then grinding and leveling are carried out.

[0005] 2. The refractory material is prone to localized damage. During the operation of the coke tank, coke may become trapped between the bottom of the coke tank and the bottom gate, making the refractory material in the trapped area susceptible to damage. Collisions between the top of the coke tank and the coke tank cover can also cause damage to the refractory material.

[0006] 3. Unable to repair in a timely manner: If the refractory material inside the integral refractory coke pot is damaged in a timely manner, it cannot be replaced or repaired in time, and can only be poured as a whole during the overhaul period.

[0007] In view of the problems existing in the above-mentioned existing technologies, it is necessary to research and design a new type of refractory coke pot to overcome the problems existing in the existing technologies. Summary of the Invention

[0008] To address the technical problems of existing technologies, such as long construction periods, easy local damage to refractory materials, coke trapping at damaged areas, and inability to repair in a timely manner, this invention provides a refractory coke oven. This invention primarily employs a combination of refractory precast blocks, refractory castables, and metal liners, using different types of refractory linings depending on the working conditions of different parts; thus avoiding the problems of easy local damage to the coke oven during use and the inability to replace refractory materials after damage.

[0009] The technical means employed in this invention are as follows:

[0010] A refractory coke can includes: a coke can body and a coke can bottom gate; the coke can body is welded from steel plates and shaped steel; the coke can bottom gate is welded from heat-resistant steel plates, has a semi-circular structure, and is installed at the bottom of the coke can body.

[0011] Furthermore, a metal liner is fitted on the inner side of the upper conical part of the coke tank body via hooks and bolts;

[0012] Furthermore, a low-density refractory precast block is assembled on the inner side of the straight section in the middle of the coke pot body.

[0013] Furthermore, high-density refractory precast blocks are fitted inside the lower cone section of the coke oven body.

[0014] Furthermore, lightweight insulating castable is filled between the coke oven body and the low-density refractory precast blocks, and between the coke oven body and the high-density refractory precast blocks, to provide thermal insulation.

[0015] Furthermore, high-density castable material is poured into the transition section between the straight section and the lower cone section inside the coke tank body, the bottom of the lower cone section, and the upper part of the bottom gate of the coke tank.

[0016] Furthermore, the bottom gate of the coke oven is equipped with an outer ring liner made of heat-resistant cast steel to prevent high-density castable material from falling off the bottom gate of the coke oven.

[0017] Furthermore, multiple C-shaped lugs made of curved steel plates are welded onto the straight section and lower conical section inside the coke pot body for assembling low-density refractory precast blocks and high-density refractory precast blocks.

[0018] Furthermore, both the low-density and high-density refractory precast blocks are made of refractory materials and cast using molds. They are also pre-embedded with n-shaped hooks made of curved round steel. The low-density and high-density refractory precast blocks are installed on the inner wall of the coke oven body by the cooperation of the n-shaped hooks and C-shaped lugs.

[0019] Furthermore, V-shaped anchoring claws are welded to the transition section between the straight section and the lower conical section inside the coke tank body, the bottom of the lower conical section, and the upper part of the bottom gate of the coke tank.

[0020] Furthermore, the high-density castable material is secured by anchoring claws to the transition section between the straight section and the lower cone section of the coke tank body, the bottom of the lower cone section, and the upper part of the bottom gate of the coke tank.

[0021] Furthermore, a flange plate is welded to the bottom surface of the lower conical part of the coke oven body;

[0022] Furthermore, a heat-resistant protective plate is welded to the inner ring of the flange plate to protect the high-density castable material at the bottom of the lower cone section.

[0023] Furthermore, a heat-resistant protective plate is welded to the upper inner side of the bottom gate to protect the high-density castable material.

[0024] Compared with the prior art, the present invention has the following advantages:

[0025] 1. Traditional refractory coke tanks are cast as a single piece, requiring construction to be completed only after the tank body and bottom gate are fabricated, resulting in a long production cycle. The refractory coke tank provided by this invention uses precast refractory blocks for the central part of the cylindrical straight section and lower conical section of the tank body. The precast refractory blocks are pre-processed, greatly reducing the construction period.

[0026] 2. The upper conical section of the coke can is subject to impact from the coke can lid during use. In the past, the refractory material of the upper conical section of refractory coke cans would fall off in a short time under impact, affecting its use. The refractory coke can provided by this invention uses replaceable metal liners for vulnerable parts, which can be replaced in time after damage, reducing maintenance time and facilitating long-term online use of the coke can.

[0027] 3. During use, coke jamming often occurs at the bottom of the lower conical section and the outer ring of the bottom gate of the coke tank, causing damage to the refractory material of the original refractory coke tank. The refractory coke tank provided by this invention uses metal flange plates and metal lining plates in contact with the parts prone to coke jamming, avoiding the problem of damage to the refractory material caused by coke jamming in the previous refractory coke tanks;

[0028] 4. Refractory coke canisters are subject to impact from coke and rapid temperature changes during use, which can damage the refractory material. Replacing the refractory material in existing refractory coke canisters is extremely inconvenient. The refractory coke canister provided by this invention allows for the removal of damaged refractory prefabricated blocks. New refractory prefabricated blocks are then attached to the coke canister body via hooks, simplifying installation and replacement. This overcomes the drawback of monolithically cast refractory coke canisters, which cannot be replaced.

[0029] In summary, the technical solution of this invention solves the problems of long construction period, easy local damage to refractory materials, coke trapping at damaged areas, and inability to repair in a timely manner in the prior art. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is an external schematic diagram of the present invention;

[0032] Figure 2 This is a cross-sectional view of the present invention;

[0033] Figure 3 For the present invention Figure 2 Enlarged view of Part I;

[0034] Figure 4 For the present invention Figure 2 Enlarged view of Part II;

[0035] Figure 5 For the present invention Figure 2 Enlarged view of Part III;

[0036] Figure 6 For the present invention Figure 5 AA view.

[0037] In the figure: 1. Coke tank body; 2. Metal lining plate; 3. Low-density refractory precast block; 4. Lightweight heat-insulating castable; 5. High-density castable; 6. High-density refractory precast block; 7. Coke tank bottom gate; 8. Bottom gate outer ring lining plate; 9. C-type hanging lug; 10. Anchor claw; 11. Flange plate; 12. Heat-resistant protective plate; 13. N-type hook; 14. Bottom gate heat-resistant protective plate. Detailed Implementation

[0038] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0041] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0042] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0043] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0044] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0045] like Figure 1-2As shown, the present invention provides a refractory coke can, comprising: a coke can body 1 and a coke can bottom gate 7; the coke can body 1 is welded from steel plates and shaped steel; the coke can bottom gate 7 is welded from heat-resistant steel plates, has a semi-circular structure, and is installed at the bottom of the coke can body 1.

[0046] like Figure 1-2 As shown, a metal liner 2 is fitted inside the upper conical section of the coke tank body 1 via hooks and bolts; a low-density refractory precast block 3 is fitted inside the straight section of the middle part of the coke tank body 1; a high-density refractory precast block 6 is fitted inside the lower conical section of the coke tank body 1; lightweight heat-insulating castable 4 is filled between the coke tank body 1 and the low-density refractory precast block 3 and between the coke tank body 1 and the high-density refractory precast block 6 to provide heat insulation; high-density castable 5 is cast in the transition section between the straight section and the lower conical section inside the coke tank body 1, at the bottom of the lower conical section, and above the bottom gate 7 of the coke tank; a bottom gate outer ring liner 8 made of heat-resistant cast steel is installed on the bottom gate 7 of the coke tank to prevent the high-density castable 5 from falling off the bottom gate 7 of the coke tank.

[0047] like Figure 5-6 As shown, multiple C-shaped lugs 9, made of curved steel plates, are welded onto the straight section and lower conical section inside the coke tank body 1 for assembling low-density refractory precast blocks 3 and high-density refractory precast blocks 6.

[0048] like Figure 5-6 As shown, both the low-density refractory precast block 3 and the high-density refractory precast block 6 are made of refractory materials and are cast by molds. They are also pre-embedded with n-shaped hooks 13 made of round steel. The low-density refractory precast block 3 and the high-density refractory precast block 6 are installed on the inner wall of the coke tank body 1 by the cooperation of the n-shaped hooks 13 and the C-shaped hanging ears 9.

[0049] like Figure 2 , 4 As shown, V-shaped anchor claws 10 are welded to the transition section between the straight section and the lower cone section inside the coke tank body 1, the bottom of the lower cone section, and the upper part of the coke tank bottom gate 7.

[0050] like Figure 2 , 4 As shown, the high-density castable 5 is secured by anchoring claws 10 to the transition section between the straight section and the lower cone section of the coke tank body 1, the bottom of the lower cone section, and the upper part of the bottom gate 7 of the coke tank.

[0051] like Figure 3 As shown, a flange plate 11 is welded to the bottom surface of the lower cone part of the coke tank body 1; a heat-resistant protective plate 12 is welded to the inner ring of the flange plate 11, which serves to protect the high-density castable material 5 at the bottom of the lower cone part.

[0052] like Figure 4As shown, a heat-resistant protective plate 14 is welded to the upper inner side of the bottom gate 7, which serves to protect the high-density castable material 5.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A refractory coke container, comprising: coke... The coke tank body (1) and the bottom gate (7) of the coke tank; the coke tank body (1) is welded from steel plates and structural steel; the bottom gate (7) of the coke tank is welded from heat-resistant steel plates, has a semi-circular structure, and is installed at the bottom of the coke tank body (1); its characteristics are: The inner side of the upper cone part of the coke tank body (1) is fitted with a metal liner (2) by hooks and bolts. The inner side of the straight section in the middle of the coke tank body (1) is fitted with a low-density refractory precast block (3). The lower cone portion of the coke tank body (1) is fitted with a high-density refractory precast block (6) on its inner side. The space between the coke tank body (1) and the low-density refractory precast block (3) and between the coke tank body (1) and the high-density refractory precast block (6) is filled with lightweight heat-insulating castable material (4) to provide heat insulation. The transition section between the straight section and the lower cone section inside the coke tank body (1), the bottom of the lower cone section, and the upper part of the bottom gate (7) of the coke tank are all filled with high-density castable material (5). The bottom gate (7) of the coke tank is equipped with a bottom gate outer ring liner (8) made of heat-resistant cast steel to prevent high-density castable material (5) from falling off the bottom gate (7) of the coke tank; The inner straight section and lower conical section of the coke tank body (1) are welded with multiple C-shaped lugs (9) made of curved steel plates for assembling low-density refractory precast blocks (3) and high-density refractory precast blocks (6). The bottom surface of the lower cone portion of the coke tank body (1) is welded with a flange plate (11). A heat-resistant protective plate (12) is welded to the inner ring of the flange plate (11) to protect the high-density castable material (5) at the bottom of the lower cone part.

2. The refractory coke pot according to claim 1, characterized in that: The low-density refractory precast block (3) and the high-density refractory precast block (6) are both made of refractory materials and cast by molds. They are pre-embedded with n-shaped hooks (13) made of round steel. The low-density refractory precast block (3) and the high-density refractory precast block (6) are installed on the inner wall of the coke tank body (1) by the cooperation of the n-shaped hooks (13) and the C-shaped hanging ears (9).

3. The refractory coke pot according to claim 2, characterized in that: The transition section between the straight section and the lower cone section inside the coke tank body (1), the bottom of the lower cone section, and the upper part of the bottom gate (7) of the coke tank are welded with V-shaped anchor claws (10).

4. The refractory coke pot according to claim 1, characterized in that: The high-density castable material (5) is secured by anchoring claws (10) to the transition section between the straight section and the lower cone section of the coke tank body (1), the bottom of the lower cone section, and the upper part of the bottom gate (7) of the coke tank.

5. The refractory coke pot according to claim 1, characterized in that: The upper inner side of the bottom gate (7) of the coke tank is welded with a bottom gate heat-resistant protective plate (14), which serves to protect the high-density castable material (5).

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