Novel fire-resistant furnace top unit for high-temperature furnace

Abstract

The utility model provides a novel refractory furnace top unit for a high-temperature furnace, and belongs to the technical field of high-temperature furnace masonry. Comprising bottom bricks, fireproof bricks, heat preservation bricks and connecting bricks, the fireproof bricks form a fireproof arch wall, the heat preservation bricks form a heat preservation arch wall on the outer side of the fireproof arch wall, the fireproof arch wall and the heat preservation arch wall are both installed on the top of the bottom bricks and one sides of the connecting bricks, and convex strips are arranged on one sides of the fireproof bricks. One side of the protruding strip is attached to the heat preservation brick, and an arc groove is formed in the side, facing the fireproof brick, of the heat preservation brick. The fireproof brick has the advantages that heat enters the cavity through the fireproof brick, the contact face of the fireproof brick and the heat preservation brick is reduced, heat loss caused by solid conduction is reduced, and the heat preservation effect of the heat preservation layer is improved; the gaps between the fireproof bricks and the insulating bricks are filled with the raised lines, so that the fireproof bricks and the insulating bricks can be simultaneously built, a binding agent is prevented from being scattered in the cavity outside the fireproof bricks, the binding material is prevented from sliding into the cavity to reduce the insulating effect, and the furnace top unit is more convenient to build.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-temperature furnace masonry, and particularly relates to a novel refractory furnace top unit for a high-temperature furnace. Background Art

[0002] Industrial high-temperature furnaces are made of high-temperature resistant materials and are widely used in metallurgy, casting, forging and other fields. They are important industrial equipment and require a large amount of heat input. In high-temperature environments, the furnace body material may produce large thermal stress due to thermal expansion and contraction. When a high-temperature furnace is in use, there is usually a layer of insulation material on the outside. The use of insulation material can reduce the thermal stress of the high-temperature furnace body, protect the integrity and stability of the furnace body structure, reduce heat loss, and help the high-temperature furnace use energy more efficiently.

[0003] Currently, a commonly used industrial high-temperature furnace has a vault-shaped structure. The existing high-temperature furnace vault unit usually has a layer of insulation bricks built on the outside of the fireproof bricks. The insulation bricks and the internal fireproof bricks are usually laid together in a close fit. This method allows heat to be conducted through the solid, reducing the insulation effect of the insulation layer. Utility Model Content

[0004] The technical problem to be solved by the present invention is that the insulation bricks and the internal fireproof turn are usually laid together in a close fit, which enables heat to be conducted through the solid, reducing the insulation effect. In view of the shortcomings of the existing technology, a new refractory furnace top unit for high-temperature furnaces is provided.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] It includes bottom bricks, fireproof bricks, insulation bricks and connecting bricks. The fireproof bricks form a fireproof arch wall, and the insulation bricks form an insulation arch wall outside the fireproof arch wall. The fireproof arch wall and the insulation arch wall are both installed on the top of the bottom brick and one side of the connecting brick. One side of the fireproof brick is provided with a convex strip, one side of the convex strip is in contact with the insulation brick, and the insulation brick is provided with an arc groove on the side facing the fireproof brick.

[0007] Furthermore, a notch is provided on one side of the fireproof brick, and the opening of the notch faces the thermal insulation brick.

[0008] Furthermore, a first slot is provided on the top of the bottom brick and the fireproof brick, the cross section of the first slot is rectangular, and a first plug corresponding to the shape of the first slot is connected to the bottom of the fireproof brick.

[0009] Furthermore, a receiving groove is provided on the side of the first slot.

[0010] Furthermore, a second slot is provided on the top of the bottom brick and the insulation brick, the cross section of the second slot is a right-angled trapezoid, and a second plug corresponding to the shape of the second slot is provided on the bottom of the insulation brick.

[0011] Furthermore, a third plug-in block and a fourth plug-in block are provided on the side of the connecting brick, the third plug-in block is plugged into the interior of the first slot, and the fourth plug-in block is plugged into the interior of the second slot.

[0012] Furthermore, an assembly groove is provided on the top of the connecting brick, and an insulation layer is provided inside the assembly groove.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. As the arc groove creates a cavity between the insulation bricks and the fireproof bricks, heat enters the cavity through the fireproof bricks, reducing the contact area between the fireproof bricks and the insulation bricks, reducing the heat loss caused by solid conduction, and improving the insulation effect of the insulation layer.

[0015] 2. When building the furnace roof unit, the convex strips fill the gaps between the fireproof bricks and the insulation bricks, so that the fireproof bricks and the insulation bricks can be built at the same time, which prevents the adhesive from spilling into the cavity outside the fireproof bricks and prevents the adhesive material from sliding into the cavity to reduce the insulation effect, making it more convenient to build the furnace roof unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be described in further detail below with reference to the accompanying drawings.

[0017] Figure 1 : A schematic diagram of the three-dimensional structure of Example 1 of the present utility model;

[0018] Figure 2 : In the utility model embodiment 1 Figure 1 Schematic diagram of the structure enlarged at A;

[0019] Figure 3 : A schematic diagram of the structure of the decomposition in Example 1 of the present utility model;

[0020] Figure 4 : A schematic structural diagram of connecting bricks in Example 2 of the present invention.

[0021] Among them, 10, bottom brick; 11, first slot; 12, receiving slot; 13, second slot; 20, fireproof brick; 21, convex strip; 22, notch; 23, first plug; 30, insulation brick; 31, arc groove; 32, second plug; 40, connecting brick; 41, third plug; 42, fourth plug; 43, assembly slot; 44, insulation layer. DETAILED DESCRIPTION

[0022] To better understand the present invention, the following examples further illustrate the present invention. However, the present invention is not limited to the following examples. In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be practiced without one or more of these details.

[0023] Example 1: See Figure 1-3 The present embodiment provides a novel refractory furnace roof unit for a high-temperature furnace, comprising a bottom brick 10, a fireproof brick 20, an insulation brick 30 and a connecting brick 40. When the fireproof brick 20 and the insulation brick 30 are used to build the furnace roof unit, a refractory material is used as a binder. The fireproof bricks (20) form a fireproof arch wall, and the insulation bricks (30) form an insulation arch wall outside the fireproof arch wall. The fireproof arch wall and the insulation arch wall are both installed on the top of the bottom brick (10) and one side of the connecting brick (40). A convex strip 21 is provided on one side of the fireproof brick 20. Multiple fireproof bricks 20 are laid into an arc top, and the insulation brick 30 is laid on the periphery of the fireproof brick 20 so that one side of the insulation brick 30 fits with the convex strip 21. By setting The ridges 21 can accommodate more adhesive. At the same time, because the ridges 21 fill the gaps between the fire bricks 20 and the insulation bricks 30, the fire bricks 20 and the insulation bricks 30 can be built at the same time to prevent the adhesive from spilling into the cavity outside the fire bricks. One side of the ridges 21 is in contact with the insulation bricks 30. The insulation bricks 30 are provided with arc grooves 31 on the side facing the fire bricks 20. After the completion of the masonry, the insulation arch wall and the fireproof arch wall are sealed with fireproof materials at both ends of the arc grooves 31 to make the cavity airtight. Due to the arc grooves 31, there is a cavity between the insulation bricks 30 and the fire bricks 20. Heat enters the cavity through the fire bricks 20, reducing the contact area between the fire bricks 20 and the insulation bricks 30, and reducing the heat loss caused by solid conduction.

[0024] See Figure 3 A notch 22 is provided on one side of the fireproof brick 20, and the opening of the notch 22 faces the insulation brick 30. The notch 22 expands the space of the arc groove 31, thereby improving the insulation effect of the cavity.

[0025] See Figure 3 A first slot 11 is provided on the top of the bottom brick 10 and the fire brick 20. The cross-section of the first slot 11 is rectangular. The bottom of the fire brick 20 is connected to a first plug block 23 corresponding to the shape of the first slot 11. When the fire brick 20 is laid, the first plug block 23 is inserted into the slot 11, which can improve the structural strength of the furnace top unit during laying.

[0026] See Figure 2-3 A receiving groove 12 is provided on the side of the first slot 11. During masonry, the adhesive is pre-placed into the first slot 11, and the excess adhesive enters the receiving groove 12 to reduce the overflow of the adhesive.

[0027] See Figure 2-3 A second slot 13 is provided at the top of the bottom brick 10 and the insulation brick 30. The adhesive is pre-placed in the second slot 13 during masonry. The cross-section of the second slot 13 is a right-angled trapezoid, so that the inner side of the insulation brick 30 in the second slot 13 is higher than the outer side. A second plug 32 corresponding to the shape of the second slot 13 is provided at the bottom of the insulation brick 30. When the insulation brick 30 is laid, the second plug 32 is inserted into the second slot 13, and the internal adhesive is squeezed to flow to the outside of the insulation brick, preventing the adhesive from entering the arc groove 31.

[0028] See Figure 4 A third plug-in block 41 and a fourth plug-in block 42 are provided on the side of the connecting brick 40. The third plug-in block 41 is plugged into the inside of the first slot 11, and the fourth plug-in block 42 is plugged into the inside of the second slot 13. The provision of the third plug-in block 41 and the fourth plug-in block 42 improves the fixing effect of the connecting brick 40.

[0029] Beneficial effects:

[0030] 1. Build a plurality of fireproof bricks 20 into an arc top, and then build insulation bricks 30 on the periphery of the fireproof bricks 20 so that one side of the insulation brick 30 fits with the convex strip 21. At this time, due to the arc groove 31, there is a cavity between the insulation brick 30 and the fireproof brick 20. Heat enters the cavity through the fireproof brick 20, reducing the contact area between the fireproof brick 20 and the insulation brick 30, reducing the heat loss caused by solid conduction, and improving the insulation effect of the insulation layer.

[0031] 2. When using the masonry furnace roof unit, refractory material is used as a binder. The convex strips 21 can accommodate excess binder. At the same time, because the convex strips 21 fill the gaps between the fireproof bricks 20 and the insulation bricks 30, the fireproof bricks 20 and the insulation bricks 30 can be built at the same time, preventing the binder from spilling into the cavity outside the fireproof bricks and preventing the binder from sliding into the cavity to reduce the insulation effect, making it more convenient to build the furnace roof unit.

[0032] Example 2: Example 2 is a further improvement made on the basis of Example 1, see Figure 4 In the novel refractory roof unit for a high-temperature furnace of this embodiment, an assembly groove 43 is provided on the top of the connecting brick 40 , and an insulation layer 44 is provided inside the assembly groove 43 .

[0033] Beneficial effect: By providing the assembly groove 43 on the top of the connecting brick 40 , the thermal insulation layer 44 can be placed in the assembly groove 43 , thereby further improving the thermal insulation effect of the connecting brick 40 .

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

[0035] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A new type of refractory roof unit for high temperature furnace, characterized in that: The invention comprises a bottom brick (10), a fireproof brick (20), an insulation brick (30) and a connecting brick (40), wherein the fireproof brick (20) forms a fireproof arch wall, and the insulation brick (30) forms an insulation arch wall outside the fireproof arch wall. The fireproof arch wall and the insulation arch wall are both installed on the top of the bottom brick (10) and one side of the connecting brick (40). A convex strip (21) is provided on one side of the fireproof brick (20), and one side of the convex strip (21) is in contact with the insulation brick (30). An arc groove (31) is provided on the side of the insulation brick (30) facing the fireproof brick (20).

2. The novel refractory roof unit for a high temperature furnace according to claim 1, characterized in that: A notch (22) is provided on one side of the fireproof brick (20), and the opening of the notch (22) faces the thermal insulation brick (30).

3. The novel refractory roof unit for a high temperature furnace according to claim 1, characterized in that: A first slot (11) is provided on the top of the bottom brick (10) and the fireproof brick (20), wherein the cross section of the first slot (11) is rectangular, and a first plug (23) corresponding to the shape of the first slot (11) is provided on the bottom of the fireproof brick (20).

4. The novel refractory roof unit for a high temperature furnace according to claim 3, characterized in that: An accommodating groove (12) is provided on the side of the first slot (11).

5. The novel refractory roof unit for a high temperature furnace according to claim 1, characterized in that: A second slot (13) is provided on the top of the bottom brick (10) and the insulation brick (30), the cross section of the second slot (13) being a right-angled trapezoid, and a second plug (32) corresponding in shape to the second slot (13) is provided on the bottom of the insulation brick (30).

6. The novel refractory roof unit for a high temperature furnace according to claim 1, characterized in that: A third plug-in block (41) and a fourth plug-in block (42) are provided on the side of the connection brick (40); the third plug-in block (41) is plugged into the interior of the first slot (11); and the fourth plug-in block (42) is plugged into the interior of the second slot (13).

7. The novel refractory roof unit for a high temperature furnace according to claim 1, characterized in that: An assembly groove (43) is provided on the top of the connecting brick (40), and a heat-insulating layer (44) is provided inside the assembly groove (43).

Images