Mould for lintel brick of dry quenching furnace

Abstract

The utility model belongs to the technical field of refractory materials, and relates to a mold for a lintel brick of a dry quenching furnace, which comprises a machine table, a mold frame is arranged on the machine table, an upper mold block is arranged above the mold frame, a lower mold block is arranged in the mold frame, and the upper mold block and the lower mold block are both connected with hydraulic ejector rods. A movable plate tightly attached to the inner wall of the mold frame is arranged in the mold frame, the movable plate is formed by combining three split bodies including a first plate block, a second plate block and a third plate block, and the first plate block, the second plate block and the third plate block are obtained by cutting the movable plate in the longitudinal direction. In the demolding process, the second plate block is demolded firstly, only one face of the second plate block is connected with the brick body, friction is not generated between the face of the second plate block and the surface of the brick body in the demolding process, demolding can be conducted easily, the surface of the brick body cannot be damaged, the product quality is ensured, and after the second plate block is demolded, the first plate block and the second plate block are demolded.

Description

Technical Field

[0001] The utility model relates to the technical field of refractory materials, and particularly relates to a mold for a dry quenching coke oven lintel brick. Background Art

[0002] Dry quenching of coke uses inert gas as a heat exchange medium, which moves in the opposite direction to the red coke in the dry quenching coke oven (CDQ) to exchange heat, so that the coke is cooled from 1000 °C to below 250 °C. At the same time, the heat is recovered for power generation and other energy utilization. Complex and multiple-shaped refractory products are used in the CDQ furnace, and among them, the lintel brick is the most important and complex brick type in the CDQ furnace.

[0003] Patent No. CN202021975663.2 discloses a molding mold for refractory bricks, including a mounting seat and a mold frame. A hydraulic jack is arranged at the upper end of the mounting seat, and the upper end of the hydraulic jack is connected to a connecting plate. At the same time, the connecting plate is connected to the lower end of the mold bottom plate through a first bolt. The mold frame is fixedly connected to the mounting seat and is arranged above the mold bottom plate. A lower mold is arranged on the mold frame, and an upper mold is arranged above the lower mold. In this molding mold for refractory bricks, the first mold baffle and the second mold baffle are connected and fixed through a second bolt, which is convenient for disassembly, maintenance and replacement. At the same time, the first mold baffle and the second mold baffle are slidably connected to the mold frame through a first T-shaped groove and a second T-shaped groove. According to the size of the refractory brick, the first mold baffle and the second mold baffle with appropriate sizes can be selected on the mold frame to select the corresponding first T-shaped groove and the third T-shaped groove or the second T-shaped groove and the fourth T-shaped groove to control the size of the lower mold and adaptively replace the upper mold. There are depressions on the surfaces of some special-shaped lintel bricks, which requires assembling some movable plates in the mold. After the brick body is formed, the movable plates are ejected out of the mold frame together with the brick body and then the movable plates are demolded. At this time, the movable plates are embedded in the brick body, and the demolding is difficult. Forcible demolding is likely to cause damage to the brick body. Therefore, the utility model proposes a mold for a dry quenching coke oven lintel brick. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a mold for a dry quenching coke oven lintel brick, which can...

[0005] The utility model realizes the above purpose through the following technical solutions: A mold for a dry quenching coke oven lintel brick includes a machine table. A mold frame is arranged on the machine table. An upper module is arranged above the mold frame. A lower module is arranged in the mold frame. The upper module and the lower module are both connected with hydraulic jacks. A movable plate closely attached to the inner wall of the mold frame is arranged in the mold frame. It is characterized in that: the movable plate is composed of three split parts, including a first plate, a second plate and a third plate. The first plate, the second plate and the third plate are obtained by longitudinally cutting the movable plate.

[0006] Preferably, a limiting groove matching the movable plate is provided on the lower module, the bottom end of the movable plate is located in the limiting groove, the movable plate includes a vertical portion and an embedded portion in a pointed shape provided at the bottom of the vertical portion, the top end of the vertical portion is flush with the top end of the mold frame, and an avoidance notch matching the vertical portion is provided on the upper module.

[0007] Preferably, the cutting surfaces between the first plate and the second plate and between the second plate and the third plate form a 5° angle with the horizontal plane, and the projection of the second plate in the horizontal plane is an isosceles trapezoid with the small end facing inwards.

[0008] Preferably, the upper module, the lower module, the mold frame and the movable plate are all made of stainless steel.

[0009] The beneficial effects of the technical solution of the present utility model are:

[0010] The movable plate is divided into a first plate, a second plate and a third plate. When demolding, the second plate is demolded first. Only one surface of the second plate is in contact with the brick body, and during demolding, this surface does not rub against the surface of the brick body, so it can be easily demolded. After the second plate is demolded, the first plate and the second plate are demolded. At this time, there is enough space to facilitate the demolding of the first plate and the second plate without damaging the brick body, ensuring the product quality and improving the yield rate of the product;

[0011] The projection of the second plate in the horizontal plane is an isosceles trapezoid with the small end facing inwards. When the second plate is taken outwards, the contact surfaces of the second plate with the first plate and the third plate are quickly separated, hardly affected by friction, and can be quickly demolded, improving the demolding efficiency. Description of the Drawings

[0012] Figure 1 It is a schematic diagram of the brick body structure.

[0013] Figure 2 It is a schematic diagram of the mold frame structure.

[0014] Figure 3 It is a schematic diagram of the movable plate structure.

[0015] Figure 4 It is a schematic diagram of the second plate structure.

[0016] The numbers in the figure represent:

[0017] 1. Mold frame; 2. Upper module; 3. Lower module; 4. Movable plate; 5. First plate; 6. Second plate; 7. Third plate; 8. Embedded portion; 9. Vertical portion. Detailed Embodiments

[0018] The present utility model will be further described in detail below in conjunction with specific embodiments.

[0019] Embodiment:

[0020] As Figures 1 to 4 shown, a mold for a dry quenching furnace lintel brick of the present utility model includes a machine table, a mold frame 1 is provided on the machine table, an upper module 2 is provided above the mold frame 1, a lower module 3 is provided in the mold frame 1, hydraulic ejector rods are connected to both the upper module 2 and the lower module 3, a movable plate 4 is provided in the mold frame 1 and is in close contact with the inner wall of the mold frame 1. The movable plate 4 is composed of three parts in combination, including a first plate 5, a second plate 6 and a third plate 7. The first plate 5, the second plate 6 and the third plate 7 are obtained by longitudinally cutting the movable plate 4. The movable plate 4 is assembled into the mold frame 1, brick material is added into the mold frame 1, the hydraulic ejector rod drives the upper module 2 to press downward. After the brick body is formed, the upper module 2 resets, the movable plate 4 is embedded in the brick body, the lower module 3 ejects the brick body and the movable plate 4 out of the mold frame 1. First, the second plate 6 is demolded. Only one side of the second plate 6 is in contact with the brick body, and when demolding, this side does not rub against the surface of the brick body, so it can be easily demolded. After the second plate 6 is demolded, the first plate 5 and the second plate 6 are demolded. At this time, there is enough space to facilitate the demolding of the first plate 5 and the second plate 6 without damaging the brick body, improving the yield rate of the product.

[0021] A limiting groove matching the movable plate 4 is provided on the lower module 3, the bottom end of the movable plate 4 is located in the limiting groove. The movable plate 4 includes a vertical portion 9 and an embedded portion 8 in a pointed shape provided at the bottom of the vertical portion 9. The top end of the vertical portion 9 is flush with the top end of the mold frame 1. An avoidance notch matching the vertical portion 9 is provided on the upper module 2. After the brick body is formed, the embedded portion 8 is embedded in the brick body, and the vertical portion 9 is exposed above the brick body, so as to facilitate clamping and pushing the movable plate 4 for demolding.

[0022] The cutting surface between the first plate 5 and the second plate 6 and the cutting surface between the second plate 6 and the third plate 7 both form a 5° angle with the horizontal plane. The projection of the second plate 6 in the horizontal plane is an isosceles trapezoid with the small end facing inwards. When the second plate 6 is taken outwards, the contact surfaces between the second plate 6 and the first plate 5 and the third plate 7 are quickly separated, hardly affected by friction, and can be quickly demolded.

[0023] The upper module 2, the lower module 3, the mold frame 1 and the movable plate 4 are all made of stainless steel.

[0024] The above are only some embodiments of the present utility model. For those of ordinary skill in the art, without departing from the inventive concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model.

Claims

1. A mold for a dry quenching coke oven lintel brick, comprising a machine table, a mold frame is provided on the machine table, an upper module is provided above the mold frame, a lower module is provided in the mold frame, hydraulic ejector rods are connected to both the upper module and the lower module, and a movable plate closely attached to the inner wall of the mold frame is provided in the mold frame, characterized in that: The movable plate is composed of three separate parts, including a first plate, a second plate, and a third plate. The first plate, the second plate, and the third plate are obtained by longitudinally cutting the movable plate.

2. The mold for the lintel brick of a coke dry quenching furnace according to claim 1, characterized in that: The lower module is provided with a limiting groove matching the movable plate. The bottom end of the movable plate is located in the limiting groove. The movable plate includes a vertical part and a pointed embedding part arranged at the bottom of the vertical part. The top end of the vertical part is flush with the top end of the mold frame. The upper module is provided with an avoidance notch matching the vertical part.

3. The die for the coking chamber lintel brick according to claim 1, wherein: The cutting surface between the first plate and the second plate and the cutting surface between the second plate and the third plate both form an angle of 5° with the horizontal plane. The projection of the second plate in the horizontal plane is an isosceles trapezoid with the small end facing inward.

4. A mold for the lintel bricks of a coke dry quenching furnace according to claim 1, characterized in that: The upper module, the lower module, the mold frame, and the movable plate are all made of stainless steel.

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