Split type mixing furnace

Abstract

The utility model relates to the technical field of holding furnaces, in particular to a split type holding furnace. The mixing furnace comprises a furnace body which is of a split structure and comprises a heat preservation section and a molten pool section which are sequentially communicated from top to bottom; the heat preservation section comprises an outer frame, and a heat preservation inner layer composed of fire-resistant structural blocks is arranged in the outer frame. The molten pool section comprises a pool bottom and a side wall, and the pool bottom comprises a high-temperature casting layer, a heat preservation cushion layer and a body protection layer which are sequentially arranged from top to bottom. The split type furnace body is arranged and divided into the heat preservation section and the molten pool section, so that when any part of the heat preservation section and the molten pool section is damaged, the heat preservation section and the molten pool section can be independently replaced without overall maintenance, the heat preservation section is designed to be of a structure comprising the outer frame and the heat preservation inner layer composed of the fire-resistant structural blocks, cast-in-place is not needed, the manufacturing period is short, and cost is low. The technical problems that in the prior art, a furnace door lining of a holding furnace is long in manufacturing period, needs overall maintenance when damaged, and is large in maintenance difficulty and high in cost are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mixing furnaces, in particular to a split type mixing furnace. Background Art

[0002] Mixing furnaces are widely used in industrial production. Their primary function is to mix and smelt various metal raw materials or substances to produce alloys or products that meet specific requirements. Existing mixing furnaces often use tilting doors, which have poor sealing and insulation properties. The doors also occupy a large area, leaving the effective furnace area small.

[0003] In response to the above problems, the patent document with application publication number CN108518981A discloses an electrolytic aluminum-liquid mixing furnace, in which the operating platform, outer furnace door opening and closing system and smoke extraction hood of the mixing furnace are arranged on the same side of the furnace body, the fuel gun is located on the other side of the furnace body, and an agitator is provided at the lower end of the furnace body. The operating platform is provided with an outer furnace door lower locking part, and the outer furnace door opening and closing system includes an outer furnace door and a support seat installed on the furnace body. The outer furnace door is controlled to move up and down by the operating platform, which can facilitate operators to perform slag removal and other operations. Relying on the weight of the furnace door itself, it can be ensured that the furnace door is locked by the furnace door lower locking part after it is lowered, thereby improving the sealing effect and thermal insulation performance of the furnace door. The furnace door has a vertical furnace door structure, which reduces its footprint, increases the usable area of the furnace chamber, and can improve the sealing effect and thermal insulation performance of the furnace door.

[0004] It can be seen that the above-mentioned mixing furnace can improve the sealing effect and thermal insulation performance of the furnace door while reducing the floor space occupied by the furnace door and increasing the usable area of the furnace chamber. However, the above-mentioned mixing furnace still has the following problems in actual use: 1. The furnace door lining is made in a fully cast form and needs to be produced on-site. After production is completed, the furnace needs to be heated and dried to dry the inner cavity. The drying process usually takes one month, which is very time-consuming. 2. Under normal circumstances, the molten aluminum in the mixing furnace is in the molten pool at the bottom. After the mixing furnace has been in use for a period of time, the bottom of the molten pool is easily damaged. If it is to be repaired, the side walls of the mixing furnace need to be dismantled for overall maintenance. The damaged parts cannot be repaired separately, which makes maintenance difficult and costly. Utility Model Content

[0005] The utility model provides a split mixing furnace to solve the technical problems in the prior art that the inner lining of the mixing furnace door has a long production cycle and needs to be repaired as a whole when damaged, which results in great difficulty and high cost in repair.

[0006] In order to solve the above problems, the split mixing furnace provided by the present invention adopts the following technical solutions:

[0007] A split type mixing furnace, comprising:

[0008] The furnace body is a split structure, and the furnace body includes a heat preservation section and a molten pool section which are connected in sequence from top to bottom;

[0009] The insulation section includes an outer frame, an insulation inner layer composed of refractory structural blocks is provided in the outer frame, and a refractory plate is provided on the side of the insulation inner layer facing the inside of the furnace body to prevent aluminum liquid from splashing onto the refractory structural blocks;

[0010] The molten pool section includes a pool bottom and side walls, and the pool bottom includes a high-temperature casting layer, a thermal insulation cushion layer and a protective layer arranged in sequence from top to bottom.

[0011] The beneficial effects of the split mixing furnace provided by the utility model are:

[0012] 1. The furnace body is designed as a split structure, which includes a heat preservation section and a molten pool section from top to bottom. When either the heat preservation section or the molten pool section is damaged, it can be repaired separately. Compared with the existing integrated mixing furnace, it not only greatly reduces the difficulty of maintenance but also reduces the maintenance cost;

[0013] 2. The insulation section is designed to include an outer frame and an insulation inner layer filled in the outer frame, and the insulation inner layer is composed of refractory structural blocks. When the mixing furnace is manufactured on site, it is only necessary to install the outer frame in place and install the refractory board on the side facing the inside of the furnace body. Then, the prefabricated refractory structural blocks are filled in the outer frame. The refractory structural blocks can be produced on a large scale and in batches in the factory with high production efficiency and fast on-site assembly speed, which reduces a large amount of wet work in traditional construction and speeds up the construction progress. After assembly is completed, there is no need to perform furnace baking operation, which greatly saves the production time of the insulation section, thereby shortening the production cycle of the mixing furnace.

[0014] Through the above-mentioned arrangement, the utility model completes the improvement and upgrade of the existing mixing furnace, and effectively solves the technical problems in the prior art that the production cycle of the lining of the mixing furnace door is long and when damaged, the entire repair is required, and the repair is difficult and costly.

[0015] Furthermore, the fire-resistant plate is a fire-resistant metal plate.

[0016] Furthermore, the refractory metal plate is a stainless steel plate.

[0017] Furthermore, the refractory structural block is a refractory fiberboard.

[0018] Furthermore, the thermal insulation cushion layer is a refractory brick layer or a refractory fiberboard layer.

[0019] Furthermore, the side wall includes an inner lining facing the interior of the furnace body, and refractory bricks are provided on a side of the inner lining facing away from the interior of the furnace body.

[0020] Furthermore, the lining is cast from a high-temperature casting material.

[0021] Furthermore, a furnace eye is opened on the side wall, and the furnace eye is used to flow out the high-temperature aluminum liquid.

[0022] Furthermore, the protective layer is a steel protective layer, which is coated on the outside of the thermal insulation cushion layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0024] Figure 1 This is a structural schematic diagram of the split mixing furnace provided by the utility model.

[0025] Description of reference numerals:

[0026] 1. Outer frame; 2. Refractory fiberboard; 3. Refractory board; 4. High-temperature casting layer; 5. Thermal insulation cushion layer; 6. Body protection layer; 7. Inner lining; 8. Refractory bricks; 9. Furnace eye. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0028] It should be noted that the main idea of the split mixing furnace provided by the present invention is: by designing the furnace body as a split structure including an insulation section and a molten pool section, the insulation section or the molten pool section can be repaired separately when any part is damaged, without the need for overall repair, thereby reducing the difficulty and cost of repair; by designing the insulation section to include an outer frame and an insulation inner layer composed of refractory structural blocks filled in the outer frame, and arranging refractory plates on the inner side of the insulation inner layer, when the insulation section is manufactured on site, it is only necessary to assemble the outer frame, refractory structural blocks and refractory plates, which not only shortens the manufacturing time, but also does not require furnace baking operation, making the manufacturing of the insulation section simpler and faster, and the repair process is also more convenient and quick; the refractory plates can not only prevent aluminum liquid from splashing onto the refractory structural blocks, but also enhance the sealing between the refractory structural blocks to ensure the sealing effect of the mixing furnace.

[0029] After introducing the basic principles of the present invention, various non-limiting embodiments of the present invention are described in detail below. The numbers of any elements in the drawings are for illustration only and not for limitation, and any names are for distinction only and do not have any limiting meaning.

[0030] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0031] Example 1 of the split mixing furnace provided by the utility model:

[0032] like Figure 1 As shown, the split mixing furnace is a split structure, which includes a heat preservation section and a molten pool section which are connected in sequence from top to bottom.

[0033] The following describes the structural components of the insulation section. The insulation section comprises an outer frame 1, which is filled with refractory blocks. These blocks are neatly stacked to form an inner insulation layer. A refractory metal plate, known as a refractory plate 3, is positioned on the inner side of the insulation layer (i.e., the side facing the interior of the furnace). This plate prevents molten aluminum from splashing onto the refractory blocks.

[0034] Specifically, the outer frame 1 is a steel frame, the refractory structural block is a refractory fiberboard 2, and the refractory metal plate is a stainless steel plate.

[0035] Next, we'll describe the structural components of the melt pool section. The melt pool section consists of a bottom and sidewalls. The top of the sidewalls abuts the bottom of the insulation section. The bottom comprises, from top to bottom, a high-temperature casting layer 4, an insulation cushion layer 5, and a protective layer 6. The sidewalls include an inner lining 7 facing the interior of the furnace. Refractory bricks 8 are located on the side of the inner lining 7 facing away from the interior of the furnace.

[0036] Specifically, the thermal insulation cushion layer 5 is a refractory brick layer or a refractory fiberboard layer, and the protective layer 6 is a steel protective body, which is covered on the outside of the thermal insulation cushion layer 5. The pool bottom composed of the steel protective body, the thermal insulation cushion layer 5 and the high-temperature casting layer 4 has a better thermal insulation effect than the existing pool bottom composed of thermal insulation bricks and high-temperature casting materials.

[0037] Specifically, the lining 7 is cast from a high-temperature casting material.

[0038] In addition, a furnace eye 9 is provided on the side wall for flowing out the high-temperature aluminum liquid in the furnace body.

[0039] The working principle of the split mixing furnace provided by the present invention is: first, a steel guard is installed at the installation position of the molten pool section, and a thermal insulation cushion layer 5 is installed on the steel guard; after the installation is completed, a high-temperature casting layer 4 is cast on the top surface of the thermal insulation cushion layer 5 to complete the production of the molten pool section; thereafter, an outer frame 1 is installed, and a stainless steel plate is installed on the inner side of the outer frame 1; after the installation is completed, a refractory fiberboard 2 is stacked to complete the production of the thermal insulation section; after the split mixing furnace is put into use, if a fault occurs, the thermal insulation section and the molten pool section can be inspected and repaired separately.

[0040] It should be noted that the fire-resistant board 3 can be a metal board or a non-metal board.

[0041] Example 2 of the split mixing furnace provided by the present utility model:

[0042] The main difference between it and Example 1 is:

[0043] In Example 1, the refractory structural block is a refractory fiberboard.

[0044] In this embodiment, the refractory structural block is a high-temperature ceramic fiber board or a composite material board.

[0045] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "width", "horizontal", "top", "bottom", "inside", "outside" and other terms indicating orientation or positional relationships are based on the orientation or positional relationships shown in the drawings of this specification. They are only for the purpose of facilitating the explanation of the scheme of the utility model and simplifying the description, rather than explicitly or implicitly indicating that the devices or elements involved must have the specific orientation, be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the utility model.

[0046] In addition, in the description of this specification, “a plurality of” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. A split type mixing furnace, characterized in that: include: The furnace body is a split structure, and the furnace body includes a heat preservation section and a molten pool section which are connected in sequence from top to bottom; The insulation section includes an outer frame, an insulation inner layer composed of refractory structural blocks is provided in the outer frame, and a refractory plate is provided on the side of the insulation inner layer facing the inside of the furnace body to prevent aluminum liquid from splashing onto the refractory structural blocks; The molten pool section includes a pool bottom and side walls, and the pool bottom includes a high-temperature casting layer, a thermal insulation cushion layer and a protective layer arranged in sequence from top to bottom.

2. The split type mixing furnace according to claim 1, characterized in that: The fire-resistant plate is a fire-resistant metal plate.

3. The split type mixing furnace according to claim 2, characterized in that: The refractory metal plate is a stainless steel plate.

4. The split type mixing furnace according to any one of claims 1 to 3, characterized in that: The refractory structural block is a refractory fiberboard.

5. The split type mixing furnace according to any one of claims 1 to 3, characterized in that: The thermal insulation cushion layer is a refractory brick layer or a refractory fiberboard layer.

6. The split type mixing furnace according to any one of claims 1 to 3, characterized in that: The side wall includes an inner lining facing the interior of the furnace body, and a side of the inner lining facing away from the interior of the furnace body is provided with refractory bricks.

7. The split type mixing furnace according to claim 6, characterized in that: The inner lining is cast from high-temperature casting material.

8. The split type mixing furnace according to any one of claims 1 to 3, characterized in that: A furnace eye is provided on the side wall, and the furnace eye is used for flowing out high-temperature aluminum liquid.

9. The split type mixing furnace according to any one of claims 1 to 3, characterized in that: The protective layer is a steel protective layer, which is covered on the outside of the thermal insulation cushion layer.

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