Graphite crucible negative oxygen combustion gas tunnel kiln

Abstract

The utility model discloses a graphite crucible negative oxygen combustion gas tunnel kiln which comprises a tunnel kiln outer frame, installation columns are installed on the periphery of the lower end of the tunnel kiln outer frame, the tunnel kiln outer frame comprises a material base layer, an inner heat preservation layer is arranged on the inner surface of the material base layer, and a fireproof layer is arranged on the inner surface of the inner heat preservation layer. According to the tunnel kiln outer frame, due to the arrangement of the inner heat preservation layer, the heat conductivity coefficient is low, the high temperature resistance is good, heat loss can be effectively reduced, the good heat preservation effect on the tunnel kiln outer frame is achieved, the sealing performance of the tunnel kiln outer frame is guaranteed, and heat loss is prevented; the tunnel kiln outer frame has the primary function of reducing chemical erosion and mechanical abrasion of high-temperature gas and materials to the tunnel kiln outer frame, so that the tunnel kiln outer frame is protected, a part of heat is absorbed from the gas, the heat is transmitted to the materials in different conduction and radiation modes, the heat serves as a heat transfer medium, and a good heat preservation effect on the tunnel kiln can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to graphite crucible negative oxygen combustion gas tunnel kiln technical field, concretely is a graphite crucible negative oxygen combustion gas tunnel kiln. BACKGROUND

[0002] Graphite crucible, also known as molten copper package, molten copper, refers to the graphite, clay, silica and talc as raw material and is baked and is formed of a kind of crucible.Graphite crucible is mainly used to smelt copper, brass, gold, silver, zinc and lead and other non-ferrous metals and its alloy, tunnel kiln is by refractory material, thermal insulation material and building material and is built up in the inside with the like carrying tool of kiln car and is similar to tunnel of kiln, is modern continuous firing heat engineering equipment, tunnel kiln is widely used in the calcination production of ceramic products, and also has application in metallurgical industry such as abrasive.

[0003] The existing graphite crucible negative oxygen combustion gas tunnel kiln has poor heat preservation effect and poor refractory performance, and long-term use will affect the firing effect inside the tunnel kiln, and the finished product will be damaged due to the failure to meet the heat preservation requirement, frequent maintenance of the tunnel kiln is required, and the use demand cannot be met.

[0004] Therefore, it is necessary to provide a graphite crucible negative oxygen combustion gas tunnel kiln to solve the above technical problems, and the information disclosed in this background technology part is only intended to increase the understanding of the overall background of the utility model, and does not necessarily be regarded as acknowledging or implying that the information constitutes prior art known to those skilled in the art. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a graphite crucible negative oxygen combustion gas tunnel kiln, which solves the problem of poor heat preservation effect and poor refractory performance of the graphite crucible negative oxygen combustion gas tunnel kiln proposed in the above background technology, long-term use will affect the firing effect inside the tunnel kiln, and the finished product will be damaged due to the failure to meet the heat preservation requirement, frequent maintenance of the tunnel kiln is required, and the use demand cannot be met.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a graphite crucible negative oxygen combustion gas tunnel kiln, comprising a tunnel kiln outer frame, four around the lower end of the tunnel kiln outer frame is equipped with mounting column, the tunnel kiln outer frame includes material base layer, the inner surface of material base layer is provided with inner insulation layer, the inner surface of inner insulation layer is provided with refractory layer, the outer surface of material base layer is provided with outer insulation layer, the inner insulation layer includes light weight refractory material, the outer surface of light weight refractory material is provided with aluminium silicate insulation layer, the outer surface of aluminium silicate insulation layer is provided with high temperature sealing coating, the material base layer includes refractory brick, the outer surface of refractory brick is provided with refractory mortar, the outer surface of refractory mortar is provided with refractory fiber material.

[0007] Preferably, the lower end of the mounting column is provided with a bottom plate.

[0008] Preferably, the top of the tunnel kiln outer frame is sequentially communicated with a duct from left to right, and the rear side of the top of the tunnel kiln outer frame is sequentially communicated with a conveying pipe from left to right.

[0009] Preferably, the outer surface of the refractory brick is adhered to the inner surface of the refractory clay, and the outer surface of the refractory clay is adhered to the inner surface of the refractory fiber material.

[0010] Preferably, the material of the inner thermal insulation layer is the same as that of the outer thermal insulation layer.

[0011] Preferably, the outer surface of the lightweight refractory material is adhered to the inner surface of the aluminum silicate thermal insulation layer, and the outer surface of the aluminum silicate thermal insulation layer is adhered to the inner surface of the high-temperature sealing coating.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1、The utility model discloses a tunnel kiln outer frame structure, which comprises a tunnel kiln outer frame, a material base layer, an inner thermal insulation layer and a lightweight refractory material.

[0014] 2、The utility model discloses a tunnel kiln outer frame structure, which comprises a tunnel kiln outer frame, a material base layer, an inner thermal insulation layer and a lightweight refractory material. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structural schematic diagram of the utility model;

[0016] Figure 2 It is the tunnel kiln outer frame structure plan view of the utility model;

[0017] Figure 3 It is the tunnel kiln outer frame structure partial section view of the utility model;

[0018] Figure 4 It is the material base layer structure partial section view of the utility model;

[0019] Figure 5 It is the inner thermal insulation layer structure partial section view of the utility model.

[0020] In the figure: 1, the outer frame of the tunnel kiln; 2, the mounting column; 3, the bottom plate; 4, the material base layer; 401, the refractory brick; 402, the refractory mortar; 403, the refractory fiber material; 5, the inner insulation layer; 501, the lightweight refractory material; 502, the aluminum silicate insulation layer; 503, the high-temperature sealing coating; 6, the refractory layer; 7, the outer insulation layer. DETAILED DESCRIPTION

[0021] In order to make the technical personnel better understand the technical scheme of the utility model, the utility model is described in detail below in conjunction with the drawings, and the description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the utility model.

[0022] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0023] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0024] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0025] In the description of the utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provision", "installation", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0026] Please refer to Figures 1-5The graphite crucible negative oxygen combustion gas tunnel kiln comprises a tunnel kiln outer frame 1, mounting columns 2 are mounted around the lower end of the tunnel kiln outer frame 1, the tunnel kiln outer frame 1 comprises a material base layer 4, the inner surface of the material base layer 4 is provided with an inner thermal insulation layer 5, the inner surface of the inner thermal insulation layer 5 is provided with a refractory layer 6, the outer surface of the material base layer 4 is provided with an outer thermal insulation layer 7, the inner thermal insulation layer 5 comprises lightweight refractory material 501, the outer surface of the lightweight refractory material 501 is provided with an aluminum silicate thermal insulation layer 502, the outer surface of the aluminum silicate thermal insulation layer 502 is provided with a high-temperature sealing coating 503, the material base layer 4 comprises refractory bricks 401, the outer surface of the refractory bricks 401 is provided with refractory mortar 402, and the outer surface of the refractory mortar 402 is provided with refractory fiber material 403.

[0027] The lower end of the mounting column 2 is provided with a bottom plate 3, the lightweight refractory material 501 has a low thermal conductivity and good high-temperature resistance, can effectively reduce heat loss, and plays a good thermal insulation role on the tunnel kiln outer frame 1.

[0028] The top of the tunnel kiln outer frame 1 is sequentially connected with conduits from left to right, and the rear side of the top of the tunnel kiln outer frame 1 is sequentially connected with conveying pipes from left to right, the aluminum silicate thermal insulation layer 502 can still have good thermal insulation effect at high temperature, the high-temperature sealing coating 503 is used to ensure the sealing performance of the tunnel kiln outer frame 1 and prevent heat loss, and the lightweight refractory material 501 and the aluminum silicate thermal insulation layer 502 are usually used in combination to improve the overall sealing performance and thermal insulation performance of the tunnel kiln outer frame 1.

[0029] The outer surface of the refractory brick 401 is adhered to the inner surface of the refractory mortar 402, and the outer surface of the refractory mortar 402 is adhered to the inner surface of the refractory fiber material 403, the refractory brick 401 and the refractory mortar 402 are mainly used to reduce the chemical corrosion and mechanical wear of the tunnel kiln outer frame 1 caused by high-temperature gas and materials, thereby protecting the tunnel kiln outer frame 1, absorbing part of the heat from the gas, and transmitting the heat to the materials in different conduction and radiation modes to act as a heat transfer medium, and also playing a good thermal insulation role on the tunnel kiln, the refractoriness of the refractory brick 401 and the refractory mortar 402 is generally between 1580-1770 DEG C or even higher, and therefore can meet the use requirements in various high-temperature environments.

[0030] The material of the inner thermal insulation layer 5 is the same as that of the outer thermal insulation layer 7, and the refractory fiber material 403 is used to effectively isolate external heat, reduce heat loss and improve the thermal efficiency of the tunnel kiln during operation.

[0031] The outer surface of the lightweight refractory material 501 is adhered to the inner surface of the aluminum silicate thermal insulation layer 502, and the outer surface of the aluminum silicate thermal insulation layer 502 is adhered to the inner surface of the high-temperature sealing coating 503.

[0032] In use, the lightweight refractory material 501 has a low thermal conductivity and good high-temperature resistance, which can effectively reduce heat loss and provide good heat preservation for the tunnel kiln outer frame 1. The aluminum silicate insulation layer 502 can maintain good heat preservation effect at high temperature. The high-temperature sealing coating 503 is used to ensure the sealing of the tunnel kiln outer frame 1 and prevent heat loss. The lightweight refractory material 501 and the aluminum silicate insulation layer 502 are usually used together to improve the overall sealing and heat preservation performance of the tunnel kiln outer frame 1. The refractory bricks 401 and the refractory mortar 402 are used to reduce the chemical corrosion and mechanical wear of the tunnel kiln outer frame 1 caused by high-temperature gas and materials, thereby protecting the tunnel kiln outer frame 1. The refractory bricks 401 and the refractory mortar 402 can also absorb some heat from the gas and transfer the heat to the materials in different ways, thereby acting as a heat transfer medium. The refractory bricks 401 and the refractory mortar 402 can also provide good heat preservation for the tunnel kiln. The refractory degree of the refractory bricks 401 and the refractory mortar 402 is generally between 1580-1770℃, or even higher, so they can withstand various high-temperature environments. The refractory fiber material 403 can effectively insulate external heat and reduce heat loss during operation, thereby improving the thermal efficiency of the tunnel kiln.

[0033] The standard parts used in the present application can be purchased from the market, and can be customized according to the description and drawings. The specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art. The mechanical parts and equipment adopt conventional models in the prior art. The control mode is automatically controlled by a controller. The control circuit of the controller can be realized by simple programming by a person skilled in the art, which is common knowledge in the art. The present application is mainly used to protect mechanical devices, so the control mode and circuit connection of the present application will not be explained in detail, and the external controller mentioned in the description can control the electrical elements mentioned in the text. Moreover, the external controller is a conventional known device.

[0034] It should be noted that in this document, the terms "comprise", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed or inherent to such a process, method, article or device.

[0035] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0036] Furthermore, it should be understood that although the present specification describes exemplary embodiments, not every embodiment contains only one independent technical solution, and the present specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that a person skilled in the art can understand.

Claims

1. A graphite crucible negative oxygen combustion gas tunnel kiln, comprising a tunnel kiln outer frame (1), characterized in that: The tunnel kiln outer frame (1) is equipped with mounting columns (2) around its lower end. The tunnel kiln outer frame (1) includes a material base layer (4). The inner surface of the material base layer (4) is provided with an inner insulation layer (5). The inner surface of the inner insulation layer (5) is provided with a refractory layer (6). The outer surface of the material base layer (4) is provided with an outer insulation layer (7). The inner insulation layer (5) includes a lightweight refractory material (501). The outer surface of the lightweight refractory material (501) is provided with an aluminum silicate insulation layer (502). The outer surface of the aluminum silicate insulation layer (502) is provided with a high-temperature sealing coating (503). The material base layer (4) includes a refractory brick (401). The outer surface of the refractory brick (401) is provided with refractory mortar (402). The outer surface of the refractory mortar (402) is provided with refractory fiber material (403).

2. The graphite crucible negative oxygen combustion gas tunnel kiln according to claim 1, characterized in that: A base plate (3) is installed at the lower end of the mounting column (2).

3. The graphite crucible negative oxygen combustion gas tunnel kiln according to claim 1, characterized in that: The top of the tunnel kiln outer frame (1) is connected to a conduit from left to right, and the rear side of the top of the tunnel kiln outer frame (1) is connected to a conveying pipe from left to right.

4. The graphite crucible negative oxygen combustion gas tunnel kiln according to claim 1, characterized in that: The outer surface of the refractory brick (401) is bonded to the inner surface of the refractory mortar (402), and the outer surface of the refractory mortar (402) is bonded to the inner surface of the refractory fiber material (403).

5. A graphite crucible negative oxygen combustion gas tunnel kiln according to claim 1, characterized in that: The material of the inner insulation layer (5) is the same as that of the outer insulation layer (7).

6. The graphite crucible negative oxygen combustion gas tunnel kiln according to claim 1, characterized in that: The outer surface of the lightweight refractory material (501) is bonded to the inner surface of the aluminum silicate insulation layer (502), and the outer surface of the aluminum silicate insulation layer (502) is bonded to the inner surface of the high-temperature sealing coating (503).

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