Metal lining plate for bottom of coke pot

Abstract

The utility model discloses a metal lining plate for the bottom of a coke pot, which comprises a bottom lining plate, the bottom lining plate comprises a steel structure protection section and a flange protection section, the flange protection section is arranged at one end of the steel structure protection section, and an included angle is formed between the steel structure protection section and the flange protection section; the steel structure protection section is detachably connected with a bottom steel structure of the coke tank body, the steel structure protection section can be laid on the inner side of the bottom steel structure, the flange protection section is detachably connected with a bottom flange plate of the coke tank body, and the flange protection section can shield the lower surface of the bottom flange plate; and a plurality of coke separation bulges are arranged on one surface, far away from the steel structure protection section, of the flange protection section. The problems that the bottom gate is not tightly closed and the bottom flange plate is damaged due to coke powder are solved, and coke leakage of the coke tank is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of dry coke quenching equipment, in particular to a metal lining plate for the bottom of a coke tank. Background Art

[0002] Coke drum belongs to dry quenching equipment, mainly composed of coke drum body, bottom gate and lifting mechanism. The coke drum body includes coke drum body steel structure and metal lining plate. The coke drum body steel structure is welded by steel plate and steel section. The bottom of the coke drum body steel structure is welded and fixed with bottom flange plate. The metal lining plate is installed on the inner side of the coke drum body steel structure. The metal lining plate located at the bottom of the coke drum body steel structure is generally a number of arc-shaped heat-resistant cast steel plates arranged in a circular array.

[0003] Coke pinching is inevitable during the use of the coke drum. The location where it occurs is between the bottom flange plate and the bottom gate of the coke drum body steel structure. The coke powder formed after the coke is crushed will stick to the bottom flange plate and the outer ring lining of the bottom gate through the tar produced in the coking process. After long-term use, the coke powder becomes more and more sticky, and the bottom gate is repeatedly opened and closed, causing a large amount of coke powder to repeatedly squeeze the bottom flange plate and the outer ring lining of the bottom gate, causing the bottom gate to be not closed tightly and the bottom flange plate to be damaged, resulting in coke leakage in the coke drum and shortening the service life of the coke drum. Summary of the invention

[0004] The utility model provides a metal lining plate for the bottom of a coke tank, which can overcome the problems of a bottom gate not being tightly closed and a bottom flange plate being damaged due to coke powder, and prevent the coke tank from leaking.

[0005] In order to achieve the above purpose, the technical solution of the utility model is:

[0006] A metal lining plate for the bottom of a coke drum, comprising a bottom lining plate, wherein the bottom lining plate comprises a steel structure protection section and a flange protection section, wherein the flange protection section is arranged at one end of the steel structure protection section, and an angle is formed between the steel structure protection section and the flange protection section;

[0007] The steel structure protection section is detachably connected to the bottom steel structure of the coke tank body, and the steel structure protection section can be laid on the inner side of the bottom steel structure; the flange protection section is detachably connected to the bottom flange plate of the coke tank body, and the flange protection section can shield the lower surface of the bottom flange plate;

[0008] A plurality of focus dividing protrusions are arranged on a surface of the flange protection section away from the steel structure protection section.

[0009] Furthermore, a plurality of the coke dividing protrusions are arranged concentrically with respect to the axis of the coke tank body.

[0010] Furthermore, the cross section of the focusing protrusion is triangular or semicircular.

[0011] Further, it also includes a mounting rod and a mounting rod bolt;

[0012] A connecting ear that can extend to the outside of the bottom steel structure is fixed on one side of the steel structure protection section facing the flange protection section;

[0013] The mounting rod is detachably connected to the connecting ear, and the mounting rod bolt is detachably connected to the mounting rod;

[0014] When the steel structure protection section is laid on the inner side of the bottom steel structure, the end of the mounting rod bolt abuts against the outer side of the bottom steel structure.

[0015] Furthermore, it also includes a ceramic fiber felt arranged between the bottom lining plate and the coke tank body.

[0016] Furthermore, a first sealing groove is provided on a surface of the steel structure protection section facing the flange protection section, and a second sealing groove is provided on a surface of the flange protection section facing the steel structure protection section, and the first sealing groove and the second sealing groove are connected to each other.

[0017] Furthermore, reinforcing ribs are provided on a surface of the steel structure protection section facing the flange protection section and on a surface of the flange protection section facing the steel structure protection section.

[0018] Furthermore, a plurality of bottom lining plates arranged in a circular array can form an annular structure that wraps the bottom steel structure and the bottom flange plate.

[0019] Beneficial effects:

[0020] Compared with the metal lining plate used at the bottom of the existing coke drum, the metal lining plate for the bottom of the coke drum provided by the utility model protects the bottom flange plate of the coke drum body through the flange protection section, so that the bottom flange plate does not directly contact the coke powder. Long-term extrusion of the coke powder will only cause damage to the bottom lining plate. Compared with the bottom flange plate fixed by welding, the bottom lining plate is detachable and easy to replace separately, which reduces the cost of coke drum maintenance and prolongs the service life of the coke drum.

[0021] Through the coke-separating protrusions on the flange protection section, the bottom lining plate can crush the coke powder bonded together by tar during the repeated opening and closing of the bottom gate, reduce the coke powder stuck on the flange protection section, prevent the coke powder from sticking more and more, overcome the coke leakage problem caused by the accumulation of coke powder, and extend the service life of the coke drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of a coke tank bottom disclosed in the utility model being installed on the coke tank with a metal lining plate;

[0024] Figure 2 for Figure 1 The enlarged view of point E;

[0025] Figure 3 for Figure 2 The enlarged view of point F;

[0026] Figure 4 It is a structural schematic diagram of a bottom lining plate of a metal lining plate for the bottom of a coke tank disclosed in the utility model;

[0027] Figure 5 It is a front view of a bottom lining plate of a metal lining plate for the bottom of a coke tank disclosed in the utility model;

[0028] Figure 6 It is a side view of a bottom lining plate of a metal lining plate for the bottom of a coke tank disclosed in the utility model;

[0029] Figure 7 It is a top view of a bottom lining plate of a metal lining plate for the bottom of a coke tank disclosed in the utility model;

[0030] Figure 8 The utility model discloses a structural schematic diagram of a mounting rod of a metal lining plate for a coke tank bottom.

[0031] In the figure:

[0032] 1. Bottom lining plate; 101. Steel structure protection section; 102. Flange protection section; 103. Connecting ear; 104. Focusing protrusion; 105. First sealing groove; 106. Reinforcement rib; 107. Second sealing groove;

[0033] 2. Mounting rod; 201. First connecting hole; 202. Second connecting hole;

[0034] 3. Ceramic fiber felt;

[0035] 4. Install the rod nut;

[0036] 5. Install the rod bolts;

[0037] A. Bottom steel structure; B. Bottom gate; C. Bottom flange plate; D. Bottom gate outer ring lining. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] This embodiment provides a metal lining plate for the bottom of a coke tank, such as Figures 2 to 7 As shown, it includes a bottom lining plate 1, the bottom lining plate 1 includes a steel structure protection section 101 and a flange protection section 102, the flange protection section 102 is arranged at one end of the steel structure protection section 101, and an angle is formed between the steel structure protection section 101 and the flange protection section 102. In this embodiment, the steel structure protection section 101 and the flange protection section 102 are integrally formed;

[0040] The steel structure protection section 101 is detachably connected to the bottom steel structure A of the coke tank body, and the steel structure protection section 101 can be laid on the inner side of the bottom steel structure A. The flange protection section 102 is detachably connected to the bottom flange plate C of the coke tank body, and the flange protection section 102 can cover the lower surface of the bottom flange plate C.

[0041] A plurality of focus separation protrusions 104 are provided on a surface of the flange protection section 102 away from the steel structure protection section 101;

[0042] The existing coke drum body steel structure has a bottom flange plate welded to the bottom, the coke drum body is rotatably connected to the bottom gate, and the bottom gate outer ring lining plate is fixed to the bottom gate. During the repeated opening and closing of the bottom gate, the coke powder will repeatedly squeeze the bottom flange plate and the bottom gate outer ring lining plate. Since the metal lining plate at the bottom of the coke drum body steel structure cannot protect the bottom flange plate, the bottom flange plate will directly contact the coke powder, which may easily cause the bottom gate to be not closed tightly and the bottom flange plate to be damaged.

[0043] The schematic diagram of a coke drum bottom provided in the present application with a metal lining plate installed on the coke drum is as follows Figure 1 and Figure 2As shown, a bottom flange plate C is welded at the bottom of the bottom steel structure A of the coke tank body, the coke tank body is rotatably connected to the bottom gate B, and a bottom gate outer ring lining plate D is fixed on the bottom gate B. Compared with the metal lining plate used at the bottom of the existing coke tank, the metal lining plate for the bottom of the coke tank provided in this embodiment protects the bottom flange plate C of the coke tank body through the flange protection section 102, so that the bottom flange plate C does not directly contact the coke powder, and the long-term extrusion of the coke powder will only cause the bottom lining plate 1 to be damaged. Compared with the bottom flange plate C fixed by welding, the bottom lining plate 1 is detachable and easy to replace separately, which reduces the cost of coke tank maintenance and prolongs the service life of the coke tank.

[0044] By means of the coke separating protrusion 104 provided on the flange protection section 102, the bottom lining plate 1 can crush the coke powder bonded together by tar during the repeated opening and closing of the bottom gate B, thereby reducing the coke powder adhering to the flange protection section 102 and preventing the coke powder from becoming more and more adhered, thereby overcoming the coke leakage problem caused by the accumulation of coke powder and extending the service life of the coke drum.

[0045] In a specific embodiment, Figure 2 As shown, a plurality of the coke dividing protrusions 104 are arranged concentrically relative to the axis of the coke tank body.

[0046] In a specific embodiment, the cross section of the coke separating protrusion 104 is triangular or semicircular. The triangular or semicircular cross section encounters less resistance when squeezing the coke powder, making it easier to crush the coke powder.

[0047] In a specific embodiment, Figure 3 As shown, it also includes a mounting rod 2 and a mounting rod bolt 5;

[0048] like Figures 3 to 6 As shown, a connecting ear 103 that can extend to the outside of the bottom steel structure A is fixed on one side of the steel structure protection section 101 facing the flange protection section 102;

[0049] The bottom steel structure A is a steel frame structure formed by welding steel plates and steel sections. There are many gaps on the steel frame structure. The connecting ears 103 extend out of the steel frame structure through the gaps in the steel frame structure and extend to the outside of the bottom steel structure A.

[0050] The mounting rod 2 is detachably connected to the connecting ear 103, and the mounting rod bolt 5 is detachably connected to the mounting rod 2;

[0051] When the steel structure protection section 101 is laid on the inner side of the bottom steel structure A, the end of the mounting rod bolt 5 abuts against the outer side of the bottom steel structure A. By tightening the mounting rod bolt 5, the steel structure protection section 101 can fit closely to the inner side of the bottom steel structure A.

[0052] In this embodiment, if Figure 3As shown, it further includes an installation rod nut 4, as Figure 8 As shown, the installation rod 2 is provided with a first connection hole 201 and a second connection hole 202. The axes of the first connection hole 201 and the second connection hole 202 are perpendicular to each other. The installation rod 2 is fixed on the connecting ear 103 by a bolt passing through the second connection hole 202. The installation rod nut 4 is welded and fixed on the installation rod 2. The threaded hole of the installation rod nut 4 is arranged opposite to the first connection hole 201. After the installation rod bolt 5 is coupled with the installation rod nut 4, the rear end of the installation rod bolt 5 passes through the first connection hole 201 and abuts against the outer side of the bottom steel structure A;

[0053] The flange protection section 102 is provided with countersunk holes, and is fixedly connected to the bottom flange plate C by bolts passing through the countersunk holes.

[0054] In a specific embodiment, as Figure 3 As shown, it further includes a ceramic fiber felt 3 disposed between the bottom lining plate 1 and the coke pot body. The ceramic fiber felt 3 can play a heat insulation role.

[0055] In a specific embodiment, as Figure 4 and Figure 5 As shown, a first sealing groove 105 is provided on the surface of the steel structure protection section 101 facing the flange protection section 102. The first sealing groove 105 is in a "C" shape. A second sealing groove 107 is provided on the surface of the flange protection section 102 facing the steel structure protection section 101. The second sealing groove 107 is in a "C" shape. The first sealing groove 105 and the second sealing groove 107 communicate with each other;

[0056] When the coke pot is working, the coke pot body and the bottom gate B form an upper-opening container, which contains red coke with a temperature up to 1050 °C. The red coke is stored in the coke pot body for about 2 minutes, and then the bottom gate B is opened by a lifting mechanism to discharge the red coke;

[0057] Simply setting the ceramic fiber felt 3 between the bottom lining plate 1 and the coke pot body cannot effectively prevent air from entering the inside of the coke pot. When air continuously enters the inside of the coke pot and reacts with the red coke by combustion, the temperature will continue to rise. When the temperature exceeds the heat-resistant temperature of the lining plate, the four corners of the lining plate will warp. When the warping of the lining plate is serious, a large amount of air will enter the coke pot, causing the lining plate to burn and crack, and in severe cases, the lining plate will fall off;

[0058] In this embodiment, by providing the first sealing groove 105 and the second sealing groove 107 which are interconnected, when the bottom lining plate 1 is tightly fitted to the inner side of the bottom steel structure A by the action of the mounting rod bolt 5, the ceramic fiber felt 3 located between the bottom lining plate 1 and the bottom steel structure A is embedded in the first sealing groove 105 and the second sealing groove 107, thereby improving the sealing effect and preventing as little air as possible from entering the interior of the coke drum.

[0059] In a specific embodiment, Figure 4 and Figure 5 As shown, reinforcing ribs 106 are provided on the surface of the steel structure protection section 101 facing the flange protection section 102 and on the surface of the flange protection section 102 facing the steel structure protection section 101 to improve the strength of the bottom lining plate 1.

[0060] In a specific embodiment, a plurality of bottom lining plates 1 arranged in a circular array can form an annular structure that wraps the bottom steel structure A and the bottom flange plate C to provide protection for the bottom steel structure A and the bottom flange plate C as much as possible. In actual applications, the specific shapes and sizes of the steel structure protection segment 101 and the flange protection segment 102 are determined according to the number of bottom lining plates 1 and the contour shape of the bottom of coke drums of different specifications, and will not be elaborated on.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A metal lining plate for the bottom of a coke tank, characterized in that: The bottom lining plate (1) comprises a steel structure protection section (101) and a flange protection section (102), wherein the flange protection section (102) is arranged at one end of the steel structure protection section (101), and an angle is formed between the steel structure protection section (101) and the flange protection section (102); The steel structure protection section (101) is detachably connected to the bottom steel structure (A) of the coke tank body, and the steel structure protection section (101) can be laid on the inner side of the bottom steel structure (A); the flange protection section (102) is detachably connected to the bottom flange plate (C) of the coke tank body, and the flange protection section (102) can cover the lower surface of the bottom flange plate (C); A plurality of focus separation protrusions (104) are provided on a surface of the flange protection section (102) away from the steel structure protection section (101); A first sealing groove (105) is provided on the side of the steel structure protection section (101) facing the flange protection section (102), and a second sealing groove (107) is provided on the side of the flange protection section (102) facing the steel structure protection section (101), and the first sealing groove (105) and the second sealing groove (107) are connected to each other.

2. The metal lining plate for the bottom of a coke tank according to claim 1, characterized in that: A plurality of the coke separation protrusions (104) are arranged concentrically relative to the axis of the coke tank body.

3. The metal lining plate for the bottom of a coke tank according to claim 1, characterized in that: The cross section of the focusing protrusion (104) is triangular or semicircular.

4. The metal lining plate for the bottom of a coke tank according to claim 1, characterized in that: Also includes a mounting rod (2) and a mounting rod bolt (5); A connecting ear (103) capable of extending to the outside of the bottom steel structure (A) is fixed on a side of the steel structure protection section (101) facing the flange protection section (102); The mounting rod (2) is detachably connected to the connecting ear (103), and the mounting rod bolt (5) is detachably connected to the mounting rod (2); When the steel structure protection section (101) is laid on the inner side of the bottom steel structure (A), the end of the mounting rod bolt (5) abuts against the outer side of the bottom steel structure (A).

5. The metal lining plate for the bottom of a coke tank according to claim 1, characterized in that: It also includes a ceramic fiber felt (3) arranged between the bottom lining plate (1) and the coke tank body.

6. The metal lining plate for the bottom of a coke tank according to claim 1, characterized in that: Reinforcing ribs (106) are provided on a surface of the steel structure protection section (101) facing the flange protection section (102) and on a surface of the flange protection section (102) facing the steel structure protection section (101).

7. A metal lining plate for the bottom of a coke tank according to any one of claims 1 to 6, characterized in that: A plurality of bottom lining plates (1) arranged in a circular array can form an annular structure that wraps around the bottom steel structure (A) and the bottom flange plate (C).

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