Graphene refractory brick and industrial furnace adopting same

Abstract

The graphene refractory brick comprises a refractory brick body, and graphene blocks are arranged on the surface side of the refractory brick body. The industrial furnace adopting the graphene refractory bricks comprises an industrial furnace body, refractory brick bodies are laid in the industrial furnace body, and graphene blocks are arranged on the surface sides of the refractory brick bodies. According to the refractory brick, the graphene blocks are arranged on the surface side of the refractory brick body, the graphene blocks have excellent heat conduction performance, the heat conduction efficiency of the refractory brick can be greatly improved through the graphene blocks, the industrial furnace adopting the refractory brick can enable heat energy to be rapidly conducted in the industrial furnace, the hearth temperature increasing speed is high, and the heat energy use efficiency is high; and the working requirement can be quickly met, so that the use amount of fuel or electric energy is saved to a certain extent.

Description

Technical Field

[0001] The present invention relates to the technical field of refractory bricks, and in particular to a graphene refractory brick and an industrial furnace using the graphene refractory brick. Background Art

[0002] Industrial furnaces include melting furnaces, smelting furnaces, holding furnaces, medium frequency furnaces and other heating furnaces that use electricity, oil or gas as heating sources. Traditional industrial furnaces are usually paved with refractory bricks or refractory castables. The current refractory bricks and refractory castables have poor thermal conductivity, which leads to slow furnace temperature increase and low efficiency in industrial furnaces. In order to achieve the furnace temperature required for production, a large amount of fuel or electricity is required, resulting in low thermal energy utilization and waste of fuel or electricity. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a graphene refractory brick and an industrial furnace using the graphene refractory brick. The graphene refractory brick has the characteristics of excellent thermal conductivity, so that heat energy can be quickly conducted in the industrial furnace, the furnace temperature increases quickly, the efficiency is high, and the use of fuel or electricity can be saved to a certain extent.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a graphene refractory brick is provided, comprising a refractory brick body, and a graphene block is arranged on the surface side of the refractory brick body.

[0005] As a further improvement of the graphene refractory brick, a notch is provided on the surface of the refractory brick body, and the notch is a groove or a slot or a connected groove and slot, and the graphene block is fixed in the notch.

[0006] As a further improvement of the graphene refractory brick, the notch is a card slot, the front and rear ends or any one of the front and rear ends of the card slot are opened, and the graphene block is put into the card slot from the opening and carded in the card slot.

[0007] As a further improvement of the graphene refractory brick, the notch is a connected groove and a card slot, at least one graphene block is put into the groove and connected to the card slot by moving, and at least one graphene block is fixed in the groove to seal the graphene block on the card slot.

[0008] As a further improvement of the graphene refractory brick, the surface side of the graphene block is flush with the surface side of the refractory brick body.

[0009] The present invention also provides an industrial furnace using graphene refractory bricks, comprising an industrial furnace body, wherein a refractory brick body is laid inside the industrial furnace body, and graphene blocks are arranged on the surface side of the refractory brick body.

[0010] As a further improvement of the industrial furnace, a notch is provided on the surface side of the refractory brick body, and the notch is a groove or a slot or a connected groove and slot, and the graphene block is fixed in the notch.

[0011] As a further improvement of the industrial furnace, at least two refractory brick bodies tightly pressed together are laid in the body of the industrial furnace, one of the refractory brick bodies is provided with a groove on its surface, and the other refractory brick body is provided with a slot on its surface, the grooves and slots on the two refractory brick bodies are connected, at least one graphene block is put into the groove and connected to the slot by moving, and at least one graphene block is fixed in the groove to seal the graphene block on the slot.

[0012] As a further improvement of the industrial furnace, at least one refractory brick body is provided with interconnected grooves and slots on its surface, at least one graphene block is placed into the groove and connected to the slot by moving, and at least one graphene block is fixed in the groove to seal the graphene block on the slot.

[0013] As a further improvement of the industrial furnace, the surface side of the graphene block is flush with the surface side of the refractory brick body.

[0014] The beneficial effects of the present invention are as follows: in the present invention, a graphene block is arranged on the surface side of the refractory brick body, and the graphene block has excellent thermal conductivity. The use of the graphene block can greatly improve the thermal conductivity of the refractory brick. An industrial furnace using the refractory brick can quickly conduct heat energy in the industrial furnace, and the furnace temperature increases quickly with high efficiency, and can quickly meet working requirements, thereby saving the use of fuel or electricity to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the graphene refractory brick described in Example 1;

[0016] Figure 2 This is a schematic diagram of the structure of the graphene refractory brick described in Example 2;

[0017] Figure 3 This is a schematic diagram of the structure of the graphene refractory brick described in Example 3;

[0018] Figure 4 This is a schematic diagram of the structure of the graphene refractory brick described in Example 4;

[0019] Figure 5 This is a schematic diagram of the structure of the graphene refractory brick described in Example 5;

[0020] Figure 6 This is a cross-sectional view of the overall structure of the industrial furnace described in Example 6;

[0021] Figure 7This is a schematic diagram of the connection of graphene refractory bricks on the top of an industrial furnace as described in Example 6;

[0022] Marking description: refractory brick body 1, groove 11, card slot 12, connecting column 13, clamping plate 14, connecting hook 15, graphene block 2, industrial furnace body 3, insulation layer 31, profile 32. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings.

[0024] Embodiment 1:

[0025] like Figure 1 As shown, a graphene refractory brick includes a refractory brick body 1 and a graphene block 2. The graphene block 2 is fixed on the surface of the refractory brick body 1, and the surface of the graphene block 2 is flush with the surface of the refractory brick body 1. Since the graphene block 2 is a relatively brittle material, the surface of the graphene block 2 is set flush with the surface of the refractory brick body 1, which can prevent the graphene block 2 from protruding from the surface of the refractory brick body 1, and to a certain extent prevent the graphene block 2 from being damaged by collision with other objects. Specifically, the installation structure between the refractory brick body 1 and the graphene block 2 is as follows: a groove 11 is provided on the surface of the refractory brick body 1, and the shape of the graphene block 2 is adapted to the groove 11, and the graphene block 2 is fixed in the groove 11 by adhesive.

[0026] Embodiment 2:

[0027] like Figure 2 As shown, a graphene refractory brick comprises a refractory brick body 1 and a graphene block 2. The graphene block 2 is fixed on the surface of the refractory brick body 1, and the surface of the graphene block 2 is flush with the surface of the refractory brick body 1. Specifically, the installation structure between the refractory brick body 1 and the graphene block 2 is as follows: a slot 12 is provided on the surface of the refractory brick body 1, and the shape of the graphene block 2 is adapted to the slot 12. The front and rear ends of the slot 12 are set as openings, and the graphene block 2 is placed from the opening and snapped into the slot 12. In other embodiments, the opening can also be set only on either side of the slot 12.

[0028] Embodiment three:

[0029] like Figure 3 As shown, the difference between the third embodiment and the first embodiment is that: a connecting column 13 is further provided on the top of the refractory brick body 1, a plurality of circles of spaced clamping plates 14 are provided on the outer peripheral wall of the connecting column 13 along the height direction, and a connecting hook 15 is provided on the top of the connecting column 13. Except for the above, the rest of the third embodiment is the same as the first embodiment.

[0030] Embodiment 4:

[0031] like Figure 4As shown, the difference between the fourth embodiment and the second embodiment is that: a connecting column 13 is further provided on the top of the refractory brick body 1, a plurality of circles of spaced-apart clamping plates 14 are provided on the outer peripheral wall of the connecting column 13 along the height direction, and a connecting hook 15 is provided on the top of the connecting column 13. Except for the above, the rest of the fourth embodiment is the same as the second embodiment.

[0032] Embodiment five:

[0033] like Figure 5 As shown, a graphene refractory brick comprises a refractory brick body 1 and a graphene block 2. The graphene block 2 is fixed on the surface of the refractory brick body 1, and the surface of the graphene block 2 is flush with the surface of the refractory brick body 1. Specifically, the mounting structure between the refractory brick body 1 and the graphene block 2 is as follows: a groove 11 and a clamping groove 12 are provided on the surface of the refractory brick body 1, and the shape of at least one graphene block 2 is matched with the clamping groove 12. The graphene block 2 is put into the groove 11 and clamped in the clamping groove 12 by moving. The shape of at least one graphene block 2 is matched with the groove 11, and the graphene block 2 is fixed in the groove 11 to block the graphene block 2 on the clamping groove 12.

[0034] Embodiment six:

[0035] like Figure 6 , 7 As shown, an industrial furnace using graphene refractory bricks includes an industrial furnace body 3. Among the four sides of the industrial furnace body 3, except one side of the feed port, the other three sides as well as the top and bottom are paved with graphene refractory bricks. In order to reduce the risk of leakage between brick joints, the three sides and the bottom of the industrial furnace body 3 are paved with the graphene refractory bricks described in Example 5, and in order to prevent the top material from sinking, the top of the industrial furnace body 3 is paved with the graphene refractory bricks described in Example 3 and Example 4.

[0036] Specifically, the graphene refractory bricks on the three sides and the bottom of the industrial furnace body 3 are long strip bricks, and adjacent refractory brick bodies 1 are arranged closely on the left and right to minimize brick gaps.

[0037] The connecting column 13 of the graphene refractory brick on the top is embedded in the insulation layer 31 on the top of the furnace body and is fixed by the clamping plate 14. The connecting hook 15 on the top of the connecting column 13 is connected to the profile 32 on the top of the furnace body. The above structure can prevent the top material from sinking or falling.

[0038] The graphene refractory bricks on the top are arranged in a row closely together, and in a row of graphene refractory bricks, one adopts the graphene refractory brick in Example 3, and the rest adopt the graphene refractory brick in Example 4. Among them, the grooves 11 and the card slots 12 on the two refractory brick bodies 1 of Example 3 and Example 4 are connected, and the card slots 12 between the refractory brick bodies 1 of the other Example 4 are also connected. The graphene block 2 can be put into the groove 11 and connected to the card slot 12 by moving. After the graphene block 2 on the card slot 12 is installed, another graphene block 2 is fixed in the groove 11 to seal the graphene block 2 in the card slot 12.

[0039] Since the graphene block 2 is a relatively brittle material, when the graphene block 2 is damaged or reaches a certain service life, the graphene block 2 needs to be replaced, and the graphene refractory brick structure in which the groove 11 and the card slot 12 are connected can facilitate the replacement of the graphene block 2. When the graphene block 2 needs to be replaced, the graphene block 2 in the groove 11 is removed, and then the graphene block 2 in the card slot 12 is pushed into the groove 11 along the card slot 12 and removed, and then a new graphene block 2 is loaded from the groove 11. The operation is simple and convenient, and the graphene block 2 replacement efficiency is high. In other embodiments, the graphene block 2 may not be fixed in the groove 11 to serve as the installation port of the graphene block 2.

[0040] The above embodiments are only used to illustrate the present invention. Any person with ordinary knowledge in the technical field can make equivalent embodiments by making partial changes or modifications to the technical contents disclosed in the present invention without departing from the scope of the technical features of the present invention, and they still fall within the scope of the technical features of the present invention without departing from the technical features of the present invention.

Claims

1. A graphene refractory brick, comprising a refractory brick body, characterized in that: A graphene block is arranged on the surface side of the refractory brick body.

2. A graphene refractory brick according to claim 1, characterized in that: A notch is arranged on the surface side of the refractory brick body, and the notch is a groove or a clamping groove or a groove and a clamping groove connected to each other, and the graphene block is fixed in the notch.

3. A graphene refractory brick according to claim 2, characterized in that: The notch is a card slot, and the front and rear ends or any one of the front and rear ends of the card slot are set as openings, and the graphene block is put into the card slot from the opening and carded in the card slot.

4. A graphene refractory brick according to claim 2, characterized in that: The notch is a connected groove and a card slot, at least one graphene block is put into the groove and connected to the card slot by moving, and at least one graphene block is fixed in the groove to seal the graphene block on the card slot.

5. A graphene refractory brick according to any one of claims 1 to 4, characterized in that: The surface of the graphene block is flush with the surface of the refractory brick body.

6. An industrial furnace using graphene refractory bricks, comprising an industrial furnace body, wherein a refractory brick body is laid inside the industrial furnace body, characterized in that: A graphene block is arranged on the surface side of the refractory brick body.

7. An industrial furnace using graphene refractory bricks according to claim 6, characterized in that: A notch is arranged on the surface side of the refractory brick body, and the notch is a groove or a clamping groove or a groove and a clamping groove connected to each other, and the graphene block is fixed in the notch.

8. The industrial furnace using graphene refractory bricks according to claim 6, characterized in that: At least two refractory brick bodies are laid in the industrial furnace body, one of which is provided with a groove on its surface, and the other is provided with a slot on its surface. The grooves and slots on the two refractory brick bodies are connected. At least one graphene block is put into the groove and connected to the slot by moving. At least one graphene block is fixed in the groove to seal the graphene block on the slot.

9. The industrial furnace using graphene refractory bricks according to claim 6, characterized in that: At least one refractory brick body is provided with interconnected grooves and slots on its surface, at least one graphene block is put into the groove and connected to the slot by moving, and at least one graphene block is fixed in the groove to seal the graphene block on the slot.

10. An industrial furnace using graphene refractory bricks according to any one of claims 6 to 9, characterized in that: The surface of the graphene block is flush with the surface of the refractory brick body.

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