Castable type coke tank with heat insulation layer

Abstract

The invention belongs to the field of coke tanks, and provides a castable type coke tank with a heat insulation layer, the castable type coke tank comprises a tank body and a coke tank cover, the coke tank cover is mounted at the top of the tank body, and an angle steel ring is arranged at the upper port of the tank body; a bottom door is mounted at the bottom of the tank body, and a hanging beam is mounted on the tank body; and a locking mechanism is also mounted on the coke tank cover. Seamless tube sealing rings are changed into angle steel rings, linear contact is changed into surface contact, and the contact area is increased under the condition that the contact position is not changed, so that the sealing performance is improved, heat leakage in the coke tank is prevented, heat for waste heat recovery is increased, and economic benefits brought by waste heat recovery are improved; when the driving plate is rotated, the extrusion locking block is rotated to the interior of the limiting groove, so that the driving locking plate is jacked up, the locking hook is clamped at the bottom of the angle steel ring, the coke tank cover is further fixed on the angle steel ring, and the situation that the coke tank cover is jacked up by relatively high atmospheric pressure, and then heat loss is caused is avoided.

Description

Technical Field

[0001] The invention belongs to the field of coke drums, and in particular relates to a castable coke drum with a heat insulation layer. Background Art

[0002] The coke drum is a tank equipment used to hold red-hot coke in the dry quenching system of the coking industry. It runs through the entire dry quenching production process. During operation, the coke drum is first used to transport the 1100℃ red coke pushed out from the carbonization chamber. The coke drum filled with red coke is transported to the dry quenching elevator via a coke drum transport trolley, and then lifted to the dry quenching coke oven by the elevator for dry quenching.

[0003] Depending on their lining materials, coke drums are divided into lined drums (with block-shaped linings made of alloy materials) and castable drums (with refractory materials). Castable drums are a new technology developed around 2019 to address some of the shortcomings of lined drums. Currently, castable drums are more widely used.

[0004] The upper cone sealing ring structure of the existing castable coke drum is a seamless tube plus supporting ribs, which is used to seal with the coke drum cover. The sealing contact mode of the upper coke drum cover is line contact, and the contact area of ​​the entire seamless tube sealing ring and the coke drum cover is limited. At the same time, the red coke in the coke drum contains a lot of heat. Under hot charging and cold shrinkage, a large air pressure will be formed in the coke drum. The large air pressure will push the coke drum cover and may also cause the seamless tube sealing ring to deform, which will lead to loose sealing, resulting in heat loss in the coke drum, reducing the heat of waste heat recovery, and thus affecting the economic benefits generated by waste heat recovery. Summary of the Invention

[0005] The purpose of the present invention is to provide a castable coke drum with an insulation layer, aiming to solve the technical problem of heat loss in the coke drum caused by loose sealing caused by seamless pipe sealing rings in the prior art.

[0006] The present invention is realized in this way: a castable coke tank with an insulating layer comprises a tank body and a coke tank cover, wherein the coke tank cover is mounted on the top of the tank body and seals the upper port of the tank body to prevent the heat loss of the red coke in the tank body, and the coke tank cover is equipped with two symmetrically distributed first lifting ears for lifting the coke tank cover and then opening the tank body to facilitate the loading of red coke, and the lifting device for lifting the coke tank cover can be installed next to the coke oven, and when the tank body moves into place, the coke tank cover is lifted by the lifting device, and the coke tank cover is closed after the red coke is dropped. The loading device can also be set on the trolley. When the trolley drives the tank body for transportation, the lifting device lifts or drops the coke tank cover to reduce the transportation time. The upper port of the tank body is provided with an angle steel ring. The angle steel ring is made of equilateral angle steel and is bent into a ring angle steel by a simmering process. The coke tank cover is in contact with the upper end surface of the angle steel ring to form a surface contact, which greatly improves the sealing performance of the coke tank cover, avoids the loss of heat in the coke tank, avoids reducing the heat of waste heat recovery, and thus affects the economic benefits of waste heat recovery.

[0007] A bottom door is installed at the bottom of the tank body, a hanging beam is installed on the tank body, and second lifting ears are installed on both sides of the hanging beam for lifting the tank body;

[0008] The coke tank cover is also provided with a locking mechanism, which is used to fix the coke tank cover to the angle steel ring, thereby preventing the coke tank cover from being lifted up by a large air pressure, thereby improving the sealing performance of the coke tank cover.

[0009] Further technical solution: the tank body includes an upper cone section, a middle section and a lower cone section, the upper cone section, the middle section and the lower cone section are connected in sequence from top to bottom, the bottom door is installed at the bottom of the lower cone section, and the angle steel ring is installed at the top of the upper cone section.

[0010] Further technical solution: the tank body consists of a steel shell, an insulation layer and a casting material layer, and the insulation layer is located between the steel shell and the casting material layer.

[0011] Further technical solution: The locking mechanism includes several groups of locking components and a driving plate. Several groups of locking components are evenly installed around the axis of the coke tank cover. The driving plate is rotatably installed on the top of the coke tank cover. The driving plate is connected to the input ends of all the locking components. The driving plate is used to drive the locking components to move, so that the locking components fix the coke tank cover to the angle steel ring.

[0012] Further technical solution: The locking assembly includes a slide groove provided on the coke tank cover, a slide frame is installed inside the slide groove for sliding along the radial direction of the coke tank cover, a lock plate is installed on the slide frame for sliding along the axis of the coke tank cover, a compression spring is connected between the slide frame and the side of the slide groove away from the axis of the coke tank cover, the compression spring is a high temperature resistant spring, and a lock hook is provided at the bottom of the lock plate;

[0013] The driving plate is provided with an extrusion locking block, which is a right-angled trapezoidal structure. A limiting groove adapted to the extrusion locking block is opened on the side of the lock plate. The driving plate and the extrusion locking block both slide inside the limiting groove, and the height of the limiting groove is not less than the height of the extrusion locking block.

[0014] The peripheral side surface of the driving plate is provided with a convex contact, which is an arc-shaped structure. The vertical distance from the distal end of the convex contact to the peripheral side surface of the driving plate is greater than the distance from the end of the lock hook to the side surface of the lock plate.

[0015] Further technical solution: The locking mechanism also includes a driving mechanism, which includes a vertical plate fixedly installed on the coke tank cover, a rotating rod rotatably installed on the vertical plate, one end of the rotating rod is fixedly connected to a bevel gear, and a bevel rack is fixedly installed on the top of the driving plate, the axis of the bevel rack coincides with the axis of the driving plate, the bevel rack and the bevel gear are meshed and connected, and a handwheel is provided at the other end of the rotating rod.

[0016] Further technical solution: the bottom door is composed of two semicircular doors, both of which are hinged to the bottom of the tank body, the linkage mechanism includes two fixed plates, the two fixed plates are symmetrically mounted on the bottom of the hanging beam, the hanging beam is slidably mounted on the tank body, the bottom end of the fixed plate is rotatably mounted with two connecting rods, the side of each semicircular door is fixedly connected to a fixing rod, and one end of the two connecting rods is rotatably connected to the two fixing rods respectively;

[0017] Both side surfaces of the tank body are fixedly connected with placement blocks.

[0018] Further technical solution: the upper part of the semicircular door is filled with prefabricated refractory bricks.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention replaces the seamless pipe sealing ring with an angle steel ring, and changes the line contact to the surface contact. While the contact position remains unchanged, the contact area is increased, thereby improving the sealing performance, preventing heat leakage in the coke tank, increasing the amount of waste heat recovered, and improving the economic benefits brought by waste heat recovery;

[0021] 2. The present invention provides an extrusion lock block. When the driving plate is rotated, the extrusion lock block is rotated into the inner part of the limiting groove, thereby lifting the driving lock plate and causing the lock hook to be stuck at the bottom of the angle steel ring, thereby fixing the coke tank cover on the angle steel ring, thereby preventing the coke tank cover from being lifted up by a large air pressure and causing heat loss. By providing a synapse on the side of the driving plate, when the tank body is opened, the convex contact is rotated into the inner part of the limiting groove, the convex contact pushes the lock plate outward, and the lock plate drives the lock hook away from the bottom of the angle steel ring, and then the coke tank cover can be smoothly lifted off, thereby making the operation of opening and closing the coke tank cover simpler.

[0022] 3. The present invention provides a fixing plate, a connecting rod, a fixing rod, etc., and enables the lifting beam to be slidably mounted on the tank body. When dropping materials, the tank body can be stably placed on the platform of the loading device, and then the second lifting lug is slowly released. Under its own weight, the bottom door slowly opens, and the red coke in the tank body slides into the loading device and finally falls into the dry quenching furnace. Compared with the prior art that uses a hydraulic system to control the opening and closing of the bottom door, this invention has a simple structure, high reliability, and long service life.

[0023] 4. The present invention replaces the most stressed part in the middle of the semicircular door with a prefabricated refractory brick structure. The prefabricated refractory bricks have high strength, more uniform stress distribution, higher maximum strength, better impact and wear resistance, and are less affected by the environment during construction. The overall strength and service life of the bottom door are greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall top view of the structure of the present invention.

[0025] Figure 2 It is a schematic diagram of the overall bottom-up structure of the present invention.

[0026] Figure 3 For the present invention Figure 1 Enlarged schematic diagram of point A in the middle.

[0027] Figure 4 For the present invention Figure 2 Enlarged schematic diagram of point B in the middle.

[0028] Figure 5 It is a structural schematic diagram of the locking component in the present invention.

[0029] Figure 6 Schematic diagram of the structure of the driving plate in the present invention.

[0030] Figure 7 It is a structural schematic diagram of the tank body when the coke tank cover is not covered in the present invention.

[0031] Figure 8 This is a schematic structural diagram of the tank body when the angle steel ring is removed in the present invention.

[0032] In the accompanying drawings: 1. coke tank cover; 2. hanging beam; 3. tank body; 31. upper cone section; 32. middle section; 33. lower cone section; 34. insulation layer; 35. casting material layer; 4. bottom door; 5. locking mechanism; 51. convex contact; 52. slide groove; 53. compression spring; 54. slide frame; 55. lock plate; 56. extrusion lock block; 57. drive plate; 58. bevel rack; 59. vertical plate; 510. rotating rod; 511. bevel gear; 512. lock hook; 513. limiting groove; 6. first lifting ear; 7. second lifting ear; 8. angle steel ring; 9. linkage mechanism; 91. fixing plate; 92. guide groove; 93. guide rail; 94. connecting rod; 95. placement block; 96. fixing rod. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0035] like Figures 1-8 As shown, a castable coke tank with an insulating layer provided by the present invention comprises a tank body 3 and a coke tank cover 1. The coke tank cover 1 is installed on the top of the tank body 3 and seals the upper port of the tank body 3 to prevent the heat loss of the red coke in the tank body 3. Two symmetrically distributed first lifting ears 6 are installed on the coke tank cover 1 for lifting the coke tank cover 1 and then opening the tank body 3 to facilitate the loading of red coke. The lifting device for lifting the coke tank cover 1 can be installed next to the coke oven. When the tank body 3 moves into place, the coke tank cover 1 is lifted by the lifting device. After the red coke is dropped, the coke tank cover 1 is closed. The lifting device can also be set on a trolley. When the trolley drives the tank body 3 to transport, the lifting device lifts or drops the coke tank cover 1 to reduce the transportation time. The upper port of the tank body 3 is provided with an angle steel ring 8. The angle steel ring 8 is made of equilateral angle steel and is bent into a ring angle steel by a simmering process. The coke tank cover 1 is in contact with the upper end surface of the angle steel ring 8 to form a surface contact, which greatly improves the sealing performance of the coke tank cover 1, avoids heat loss in the coke tank, avoids reducing the heat of waste heat recovery, and thus affects the economic benefits of waste heat recovery.

[0036] A bottom door 4 is installed at the bottom of the tank body 3, a hanging beam 2 is installed on the tank body 3, and second lifting ears 7 are installed on both sides of the hanging beam 2 for lifting the tank body 3;

[0037] A locking mechanism 5 is also installed on the coke tank cover 1. The locking mechanism 5 is used to fix the coke tank cover 1 to the angle steel ring 8, thereby preventing the coke tank cover 1 from being lifted up by a large air pressure, thereby improving the sealing performance of the coke tank cover 1.

[0038] The present invention provides a castable coke tank with an insulation layer 34. In this embodiment, the tank body 3 includes an upper cone section 31, a middle section 32 and a lower cone section 33. The upper cone section 31, the middle section 32 and the lower cone section 33 are connected in sequence from top to bottom. The bottom door 4 is installed at the bottom of the lower cone section 33, and the angle steel ring 8 is installed at the top of the upper cone section 31.

[0039] Specifically, when the seamless pipe sealing ring in traditional technology is retained on the top of the upper cone section 31, the angle steel ring 8 is installed at the same height position outside the seamless pipe sealing ring. The angle steel can be made of carbon steel or stainless steel (stainless steel is preferred).

[0040] At the same time, several small ribs and large ribs are welded on the side of the upper cone section 31, wherein the several small ribs mainly support the seamless pipe sealing ring, and the large ribs mainly support the angle steel ring 8;

[0041] When the seamless pipe sealing ring is not retained on the top of the upper cone section 31, the angle steel ring 8 is directly installed on the top of the upper cone section 31. Among them, several small ribs mainly support the upper cone section 31 to make the upper cone section 31 more solid so as to withstand the impact of falling materials from the red coke, and the large ribs also mainly support the angle steel ring 8 to prevent the angle steel ring 8 from deformation.

[0042] The present invention provides a castable coke drum with an insulation layer 34 . In this embodiment, the drum body 3 is composed of a steel shell, an insulation layer 34 and a casting material layer 35 , and the insulation layer 34 is located between the steel shell and the casting material layer 35 .

[0043] Specifically, the casting material layer 35 is made of high-strength, wear-resistant and fire-resistant castable material, such as corundum-silicon carbide refractory castable material (Al2O3≥80%, thickness 150-250mm), and is anchored by V-shaped stainless steel anchor nails;

[0044] The insulation layer 34 is made of aluminum silicate nanoplate (with a laying thickness of 30 to 50 mm and a thermal conductivity coefficient of ≤0.03 W / m·K). It is laid close to the steel shell to block heat conduction to the shell, so that the outer wall temperature can be reduced from 500°C to 160°C to 200°C.

[0045] The present invention provides a castable coke drum with an insulation layer 34. In this embodiment, the locking mechanism 5 includes several groups of locking components and a drive plate 57. Several groups of locking components are evenly installed around the axis of the coke drum cover 1. The drive plate 57 is rotatably installed on the top of the coke drum cover 1. The drive plate 57 is connected to the input ends of all the locking components. The drive plate 57 is used to drive the locking components to move, so that the locking components fix the coke drum cover 1 to the angle steel ring 8.

[0046] The present invention provides a castable coke drum with an insulation layer 34. In this embodiment, the locking assembly includes a slide groove 52 provided on the coke drum cover 1, a slide frame 54 is installed inside the slide groove 52 for sliding sliding along the radial direction of the coke drum cover 1, and a lock plate 55 is installed on the slide frame 54 for sliding sliding along the axis of the coke drum cover 1. A compression spring 53 is connected between the slide frame 54 and the side of the slide groove 52 away from the axis of the coke drum cover 1. The compression spring 53 is a high-temperature resistant spring, which can be made of high-temperature resistant material, such as precipitation hardened stainless steel (17-7PH, 15-5PH), cobalt-based alloy (Elgiloy), A286, etc. A locking hook 512 is provided at the bottom of the locking plate 55. The locking hook 512 is a right-angled triangle, and the top of the locking hook 512 is a right-angled side, so that it can smoothly abut against the bottom of the angle steel ring 8;

[0047] The locking hook 512 is pressed against the bottom of the angle steel ring 8 by the locking plate 57. The locking hook 512 is pressed against the bottom of the angle steel ring 8 by the locking plate 57. The locking hook 512 is pressed against the bottom of the angle steel ring 8 by the locking plate 57. The locking hook 512 is pressed against the bottom of the angle steel ring 8 by the locking plate 57.

[0048] In the natural state, the compression spring 53 drives the locking plate 55 to abut against the angle steel ring 8, so that the locking hook 512 is stuck at the bottom of the angle steel ring 8. However, when the tank body 3 is opened, the locking hook 512 will cause an obstruction, affecting the coke tank cover 1 from being lifted out. Therefore, a convex contact 51 is provided on the peripheral side of the driving plate 57. The convex contact 51 is an arc-shaped structure. The vertical distance from the distal end of the convex contact 51 to the peripheral side of the driving plate 57 is greater than the distance from the end of the locking hook 512 to the side of the locking plate 55. After the convex contact 51 rotates to the inside of the limiting groove 513, the convex contact 51 pushes the locking plate 55 outward, and the locking plate 55 drives the locking hook 512 away from the bottom of the angle steel ring 8, and then the coke tank cover 1 can be lifted out.

[0049] Specifically, the distance from the top of the limiting groove 513 to the top of the locking hook 512 is equal to the distance from the top of the extrusion locking block 56 to the bottom of the angle steel ring 8, or is slightly smaller by 0.2 to 0.5 mm, so that the coke tank cover 1 can be squeezed onto the angle steel ring 8 to avoid a gap between the coke tank cover 1 and the angle steel ring 8;

[0050] When installing the coke tank cover 1, first use the lifting device to lift the coke tank cover 1 to the top of the tank body 3, and then slowly lower the coke tank cover 1. At this time, the convex contact 51 is inside the limiting groove 513, and the locking hook 512 does not contact the angle steel ring 8. The coke tank cover 1 can fall smoothly on the tank body 3. Then, rotate the driving plate 57 to gradually rotate the convex contact 51 out of the limiting groove 513, and gradually rotate the extruding locking block 56 into the limiting groove 513. The extruding locking block 56 pushes up the locking plate 55, and the locking plate 55 locks the coke tank cover 1 on the angle steel ring 8 through the locking hook 512.

[0051] When removing the coke tank cover 1, the driving plate 57 is rotated in the opposite direction to rotate the extrusion lock block 56 away from the limiting groove 513, and the convex contact 51 is rotated into the limiting groove 513. Under the lateral squeezing of the convex contact 51, the lock plate 55 drives the slide frame 54 to move outward, the compression spring 53 is compressed, and the lock hook 512 is moved away from the angle steel ring 8. Then, the coke tank cover 1 can be lifted off the tank body 3 using the lifting device;

[0052] When the locking plate 55 is in the closed position, the locking plate 55 is in the closed position, and the locking plate 55 is in the closed position, so that the locking plate 55 is in the closed position, and the locking plate 55 is in the closed position, so that the locking plate 55 is in the closed position, and the locking plate 55 is in the closed position, so that the locking plate 55 is in the closed position, and the locking plate 55 is in the closed position, so that the locking plate 55 is in the closed position,

[0053] In addition, under the action of gravity of the locking plate 55 and the locking hook 512, no matter how much vibration the driving plate 57 is subjected to, the extrusion locking block 56 cannot automatically move into the limiting groove 513, thereby avoiding the risk of the locking plate 55 and the driving plate 57 being disengaged.

[0054] The present invention provides a castable coke drum with an insulation layer 34. In order to drive the driving plate 57 to rotate, in this embodiment, the locking mechanism 5 also includes a driving mechanism, which includes a vertical plate 59 fixedly installed on the coke drum cover 1, and a rotating rod 510 is rotatably installed on the vertical plate 59. One end of the rotating rod 510 is fixedly connected to a bevel gear 511, and a bevel rack 58 is fixedly installed on the top of the driving plate 57. The axis of the bevel rack 58 coincides with the axis of the driving plate 57, and the bevel rack 58 is meshed with the bevel gear 511. A handwheel is provided at the other end of the rotating rod 510.

[0055] Specifically, the hand wheel is rotated, and the hand wheel drives the bevel gear 511 to rotate through the rotating rod 510, and the bevel gear 511 drives the bevel rack 58 and the driving plate 57 to rotate;

[0056] In order to facilitate operation, a rotating manipulator can be set on the trolley. After the coke tank cover 1 falls onto the tank body 3, the rotating manipulator can automatically rotate the handwheel, thereby preventing the staff from approaching the tank body 3 and avoiding the risk of burns to the staff.

[0057] The present invention provides a castable coke tank with an insulation layer 34. In the prior art, a hydraulic system is often used to control the opening and closing of the bottom door 4. However, since the tank body 3 exists independently and can be moved independently, the hydraulic system must be installed on the tank body 3. Even if the insulation layer 34 is laid inside the tank body 3, the temperature of the outer surface of the tank body 3 is 160°C to 200°C. The hydraulic system will be affected by the high temperature. Under long-term operation, it may cause the hydraulic system to malfunction or break down. In this embodiment, the bottom door 4 is composed of two semicircular doors, and the two semicircular doors are hinged to the bottom of the tank body 3. The linkage mechanism 9 includes two fixed plates 91, and the two fixed plates 91 are symmetrically mounted on the bottom of the hanging beam 2 respectively. The hanging beam 2 is slidably mounted on the tank body 3. Two connecting rods 94 are rotatably mounted on the bottom end of the fixed plate 91. The side of each semicircular door is fixedly connected to a fixing rod 96, and one end of the two connecting rods 94 is rotatably connected to the two fixing rods 96 respectively.

[0058] Both side surfaces of the tank body 3 are fixedly connected with placement blocks 95 .

[0059] Specifically, a guide rail 93 is provided on the side of the tank body 3, and a guide groove 92 adapted to the guide rail 93 is connected to the side of the fixing plate 91. The guide groove 92 is slidably mounted on the guide rail 93, so that the hanging beam 2 can be slidably mounted on the tank body 3;

[0060] During operation, when the tank body 3 is placed on the trolley, the bottom door 4 closes the bottom of the tank body 3, and then the tank body 3 is transported to the bottom of the lifting device, the lifting device grabs the two second lifting ears 7, and drives the tank body 3 to rise, the second lifting ears 7 drive the hanging beam 2 to rise, and the hanging beam 2 pulls the semicircular door through the fixing plate 91 and the connecting rod 94. While the semicircular door closes the tank body 3, the semicircular door also drives the tank body 3 to rise, so that the tank body 3 can be lifted up, and then the lifting device drives the tank body 3 to move to the top of the dry quenching furnace. A loading device is also provided between the tank body 3 and the dry quenching furnace. The loading device is a loading funnel for the convenience of all the red coke Slide into the dry quenching furnace, a platform for placing placement blocks 95 is designed on both sides of the loading device, and the lifting device places the tank body 3 on the platform. The placement blocks 95 are in contact with the platform, then the tank body 3 will be placed stably, but the opening and closing of the bottom door 4 will not be affected, and then the lifting device slowly releases the second lifting lug 7. Under its own weight, the hanging beam 2 and the fixed plate 91 slowly descend, and the semicircular door slowly opens. The red coke in the tank body 3 will slide into the loading device and finally fall into the dry quenching furnace. When the lifting device lifts the second lifting lug 7 again, the second lifting lug 7 will drive the bottom door 4 to close the tank body 3, and then the tank body 3 can be driven back to the trolley for reloading.

[0061] The present invention provides a castable coke drum with an insulation layer 34. The traditional bottom door 4 adopts a castable structure. The overall strength of the on-site cast structure is limited, the maximum strength is low, and it is greatly affected by the environment during construction. In addition, the construction quality is closely related to the workers' skills. It has poor impact and wear resistance and needs regular repair and re-casting. Therefore, in this embodiment, the upper part of the semicircular door is filled with prefabricated refractory bricks.

[0062] Specifically, the part in the middle of the semicircular door that is subjected to the greatest force (and is also the part that is most vulnerable to damage) is replaced with a prefabricated refractory brick structure. The prefabricated refractory bricks have high strength, more uniform force, higher maximum strength, better impact and wear resistance, and are less affected by the environment during construction. The overall strength and service life of the bottom door 4 are greatly improved.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0064] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A castable coke tank with an insulation layer, comprising a tank body and a coke tank cover, wherein the coke tank cover is mounted on the top of the tank body, characterized in that: The upper port of the tank body is provided with an angle steel ring; A bottom door is installed at the bottom of the tank body, and a hanging beam is installed on the tank body; A locking mechanism is also installed on the coke tank cover, and the locking mechanism is used to fix the coke tank cover to the angle steel ring.

2. The castable coke drum with an insulation layer according to claim 1, characterized in that: The tank body includes an upper cone section, a middle section and a lower cone section, which are connected in sequence from top to bottom. The bottom door is installed at the bottom of the lower cone section, and the angle steel ring is installed at the top of the upper cone section.

3. The castable coke drum with an insulation layer according to claim 1, characterized in that: The tank body consists of a steel shell, a heat-insulating layer and a casting material layer, wherein the heat-insulating layer is located between the steel shell and the casting material layer.

4. The castable coke drum with an insulation layer according to claim 1, characterized in that: The locking mechanism includes several groups of locking components and a drive plate. The several groups of locking components are evenly installed around the axis of the coke tank cover. The drive plate is rotatably installed on the top of the coke tank cover. The drive plate is connected to the input ends of all the locking components. The drive plate is used to drive the locking components to fix the coke tank cover to the angle steel ring.

5. The castable coke drum with an insulation layer according to claim 4, characterized in that: The locking assembly includes a slide groove provided on the coke tank cover, a slide frame is installed in the slide groove for sliding along the radial direction of the coke tank cover, a lock plate is installed on the slide frame for sliding along the axis of the coke tank cover, a compression spring is connected between the slide frame and the slide groove, and a lock hook is provided at the bottom of the lock plate; The driving plate is provided with an extrusion locking block, which is a right-angled trapezoidal structure. A limiting groove adapted to the extrusion locking block is opened on the side of the lock plate, and the driving plate and the extrusion locking block both slide inside the limiting groove; The peripheral side surface of the driving plate is provided with a convex contact matched with the limiting groove.

6. The castable coke drum with an insulation layer according to claim 4, characterized in that: The locking mechanism also includes a driving mechanism, which includes a vertical plate fixedly mounted on the coke tank cover, a rotating rod rotatably mounted on the vertical plate, one end of the rotating rod is fixedly connected to a bevel gear, a bevel rack is fixedly mounted on the top of the driving plate, the axis of the bevel rack coincides with the axis of the driving plate, and the bevel rack and the bevel gear are meshed and connected.

7. The castable coke drum with an insulation layer according to claim 1, characterized in that: The bottom door is composed of two semicircular doors, both of which are hinged to the bottom of the tank body. A linkage mechanism is further connected between the hanging beam and the bottom door. The linkage mechanism includes two fixed plates, which are symmetrically mounted on the bottom of the hanging beam. The hanging beam is slidably mounted on the tank body. Two connecting rods are rotatably mounted on the bottom ends of the fixed plates. A fixing rod is fixedly connected to the side of each semicircular door, and one end of the two connecting rods is rotatably connected to the two fixing rods respectively. Both side surfaces of the tank body are fixedly connected with placement blocks.

8. The castable coke drum with an insulation layer according to claim 7, characterized in that: The upper part of the semicircular door is filled with prefabricated refractory bricks.

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