Preparation device of porous castable

Abstract

The utility model discloses a preparation device for porous castable, and relates to the technical field of foaming preparation. Comprising a foaming preparation main body, a mixing mechanism for foaming preparation of the porous castable is arranged in the foaming preparation main body, and the mixing mechanism comprises that a driving rod drives a second stirring rod on a connecting bracket to stir, so that the stirring path and range of materials can be increased; according to the foaming preparation device, the materials are prevented from forming a stable flowing mode in the same direction, so that the materials in different areas can be better mixed, the mixing degree of the materials is further enhanced, the quality stability of the porous castable is improved, and a scraper support fixed to one side of a connecting support rotates on the inner wall of the foaming preparation main body in an attached mode, so that the stability of the foaming preparation main body is improved. By means of the structure, materials attached to the inner wall can be scraped off, the materials participate in stirring again, accumulation and drying of the materials are avoided, cleanliness of the interior of equipment is guaranteed, the utilization rate of the materials is increased, and waste is reduced.

Description

Technical Field

[0001] This utility model relates to the field of foaming preparation technology, specifically to a preparation device for porous castables. Background Technology

[0002] Porous castables are refractory materials with excellent thermal insulation properties, widely used in industrial kilns, heat treatment equipment, and other fields. Foaming is one of the key steps in their preparation, directly affecting the porosity and performance of the product.

[0003] In modern industrial production, porous castables are widely used in many fields such as construction, metallurgy, and chemical engineering due to their unique properties, such as good thermal insulation, sound absorption, and lightweight yet high strength. The performance of porous castables largely depends on their preparation process, especially the foaming and mixing stages.

[0004] The preparation of porous castables requires mixing multiple raw materials. Stirring allows different material particles to fully contact and disperse, ensuring that each component is evenly distributed within the system. However, most traditional devices use a stirring structure that rotates in one direction, which makes it easy for the material to form a stable flow pattern during stirring, resulting in a limited stirring path and range, affecting the stability of the porous castable's quality. Furthermore, during stirring, the material tends to adhere to the inner wall of the device and gradually dries over time, affecting the cleanliness of the equipment and causing material waste. At the same time, a foaming agent needs to be added to form a porous structure. However, adding the foaming agent directly can easily lead to uneven dispersion of the foaming agent in the material, making it impossible to achieve uniform foaming. Therefore, this utility model provides a device for preparing porous castables. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a preparation device for porous castables. It solves the problems of most traditional devices employing a unidirectional rotating stirring structure, which leads to a stable flow pattern in the material during stirring, limiting the stirring path and range and affecting the stability of the porous castable quality. Furthermore, during stirring, the material tends to adhere to the inner wall of the device, gradually drying over time, affecting the cleanliness of the equipment and causing material waste. Additionally, while adding a foaming agent to form a porous structure is necessary, directly adding the foaming agent can easily lead to uneven dispersion of the foaming agent in the material, making uniform foaming impossible.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a porous castable preparation apparatus, comprising a foaming preparation body, wherein the foaming preparation body is internally provided with a mixing mechanism for foaming preparation of the porous castable, the mixing mechanism comprising:

[0007] The stirring assembly includes a top cover at the top of the foaming preparation body, a drive rod connected by a reciprocating assembly in the vertical direction of the top cover, a first stirring rod uniformly fixed on the outer wall of the drive rod, and a second stirring rod and a scraper bracket connected by a fixing assembly on the side of the outer wall of the drive rod near the top cover.

[0008] The injection assembly includes an annular conduit fixed to the inner wall of the foaming preparation body, a first nozzle uniformly fixed to the lower end of the annular conduit, a horizontal conduit fixed to the inner wall of the annular conduit, and a second nozzle uniformly distributed at the lower end of the horizontal conduit.

[0009] Preferably, the reciprocating assembly includes a slide rail housing fixedly connected to the upper end of the top cover, a reciprocating screw rotatably connected to the slide rail housing in the horizontal direction, a slider slidably connected to the inner wall of the slide rail housing, the slider being threadedly connected to the reciprocating screw, a gear rod fixed to the side wall of the slider, a drive rod extending to the upper end of the top cover and a connecting gear fixed thereon, the connecting gear being meshed with the gear rod, and the drive rod being rotatably connected to the top cover.

[0010] Preferably, the fixing assembly includes a connecting bracket fixed to the outer wall of the drive rod near the top cover, the scraper bracket is fixedly connected to the side wall of the connecting bracket, and the scraper bracket is in close contact with the inner wall of the foaming preparation body, and the second stirring rod is fixedly connected to the other side wall of the connecting bracket.

[0011] Preferably, the lower end of the drive rod is fixed with a spiral conveying shaft, and the lower end discharge port of the foaming preparation body has a conical structure.

[0012] Preferably, the lower end of the discharge port of the foaming preparation body is fixed with a discharge pipe controlled by a valve, and the upper end of the top cover is fixed with a feed port for material entry.

[0013] Preferably, one side of the annular conduit extends to the outside of the foaming preparation body and is fixed with an external pipe, and three sets of horizontal conduits are provided.

[0014] Beneficial effects

[0015] This invention provides an apparatus for preparing porous castables. Compared with the prior art, it has the following advantages:

[0016] Firstly, this invention features a first stirring rod on a drive rod that reciprocates inside the foaming preparation body. Simultaneously, the drive rod drives a second stirring rod on a connecting bracket to stir the material. This increases the stirring path and range, preventing the material from forming a stable flow pattern in the same direction. This allows materials from different areas to mix better. The second stirring rod, rotating with the drive rod, works in conjunction with the first stirring rod to create a multi-layered stirring effect, further enhancing the mixing degree and improving the quality stability of the porous castable. Additionally, a scraper bracket fixed to one side of the connecting bracket rotates close to the inner wall of the foaming preparation body, scraping off material adhering to the inner wall and allowing it to re-participate in the stirring process. This prevents material accumulation and drying, ensuring the cleanliness of the equipment's interior, improving material utilization, and reducing waste.

[0017] Secondly, the external connecting pipe of this invention is used to connect to the foaming agent material tank, and then the material is transported by the pump. The foaming agent is then fed into the first nozzle, which is evenly distributed on the annular guide tube, through the external connecting pipe. At the same time, the horizontal guide tube on the inner wall of the annular guide tube is also equipped with a second nozzle, which can evenly distribute the foaming agent inside the foaming preparation body, so that the foaming agent can be evenly dispersed in the material, thereby achieving uniform foaming. This ensures the uniformity of the size and distribution of the porous castable pores, improves the performance stability of the product, and enables the foaming agent to be quickly and evenly distributed throughout the entire foaming preparation body in a short time, so that it can fully contact and act with the material, thereby improving the foaming efficiency, shortening the preparation cycle, and improving production efficiency. At the same time, the foaming agent sprayed from the nozzles at different positions will generate a certain impact force and stirring effect when entering the material, which helps to promote further mixing of the foaming agent with other materials, making the material mixture more uniform, and further improving the quality of the porous castable. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the foaming preparation body of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the slide rail housing of this utility model;

[0021] Figure 4 This is a schematic diagram of the main structure of the annular catheter of this utility model.

[0022] In the diagram: 1. Foaming preparation body; 2. Top cover; 201. Inlet; 202. Outlet pipe; 3. Drive rod; 301. First stirring rod; 302. Connecting bracket; 303. Scraper bracket; 304. Second stirring rod; 305. Screw conveyor shaft; 4. Annular guide tube; 401. First nozzle; 402. Horizontal guide tube; 403. Second nozzle; 404. Outer pipe; 5. Slide rail housing; 501. Reciprocating screw; 502. Slider; 503. Gear rod; 504. Connecting gear. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 This utility model provides a technical solution: a device for preparing porous castable, comprising a foaming preparation body 1, wherein the foaming preparation body 1 is provided with a mixing mechanism for foaming preparation of porous castable, the mixing mechanism comprising:

[0025] The stirring assembly includes a top cover 2 at the top of the foaming preparation body 1, a drive rod 3 connected by a reciprocating assembly in the vertical direction of the top cover 2, a first stirring rod 301 uniformly fixed on the outer wall of the drive rod 3, and a second stirring rod 304 and a scraper bracket 303 connected by a fixing assembly on the side of the outer wall of the drive rod 3 near the top cover 2.

[0026] The injection assembly includes an annular conduit 4 fixed to the inner wall of the foaming preparation body 1, a first nozzle 401 uniformly fixed to the lower end of the annular conduit 4, a horizontal conduit 402 fixed to the inner wall of the annular conduit 4, and a second nozzle 403 uniformly distributed at the lower end of the horizontal conduit 402.

[0027] In a preferred embodiment, the reciprocating assembly includes a slide rail housing 5 fixedly connected to the upper end of the top cover 2. A reciprocating screw 501 is rotatably connected to the slide rail housing 5 in the horizontal direction. A slider 502 is slidably connected to the inner wall of the slide rail housing 5. The slider 502 is threadedly connected to the reciprocating screw 501. A gear rod 503 is fixed to the side wall of the slider 502. A connecting gear 504 is fixed to the upper end of the top cover 2, and the connecting gear 504 is meshed with the gear rod 503. The driving rod 3 is rotatably connected to the top cover 2. The fixing assembly includes a connecting bracket 302 fixed to the outer wall of the driving rod 3 near the top cover 2. A scraper bracket 303 is fixedly connected to the side wall of the connecting bracket 302, and the scraper bracket 303 is in close contact with the inner wall of the foaming preparation body 1. The second stirring rod 304 is connected to the connecting bracket 302. The reciprocating screw 501, fixedly connected to the other side wall of the bracket 302, is driven by a motor. The gear rod 503 slides under the action of the reciprocating screw 501 via the slider 502, causing the gear rod 503 to reciprocate on the top cover 2. The gear rod 503 meshes with the connecting gear 504, causing the drive rod 3 on the connecting gear 504 to rotate. This causes the first stirring rod 301 on the drive rod 3 to reciprocate inside the foaming preparation body 1. Simultaneously, the drive rod 3 drives the second stirring rod 304 on the connecting bracket 302 to stir the material. This increases the stirring path and range, preventing the material from forming a stable flow pattern in the same direction, thus allowing materials from different areas to mix better. As the drive rod 3 rotates to stir, it works in conjunction with the first stirring rod 301 to create a multi-layered stirring effect, further enhancing the mixing degree of the material and helping to improve the quality stability of the porous castable. The scraper bracket 303 fixed on one side of the connecting bracket 302 rotates against the inner wall of the foaming preparation body 1, which can scrape off the material adhering to the inner wall and make it re-participate in the stirring, avoiding the accumulation and drying of the material, ensuring the cleanliness of the equipment interior, improving the utilization rate of the material, and reducing waste. The motor model is Y2-200L1-2Y.

[0028] In a preferred embodiment, a spiral conveying shaft 305 is fixed to the lower end of the drive rod 3. The discharge port at the lower end of the foaming preparation body 1 has a conical structure, which pushes the material located at the bottom of the foaming preparation body 1 to the discharge port along the spiral direction. In particular, for the conical discharge port, the spiral conveying shaft 305 can effectively prevent the material from accumulating at the bottom, ensuring that the material can be discharged smoothly and quickly, improving the discharge efficiency, guiding the material to be discharged in a concentrated manner, and avoiding the material from being dispersed or blocked at the discharge port. A discharge pipe 202 controlled by a valve is fixed to the lower end of the discharge port of the foaming preparation body 1, which can conveniently control the material discharge process. An inlet 201 for material entry is fixed to the upper end of the top cover 2, providing a convenient entry channel for the material.

[0029] In a preferred embodiment, an outer pipe 404 is fixed to one side of the annular conduit 4 extending to the outside of the foaming preparation body 1. Three sets of horizontal conduits 402 are provided. The outer pipes 404 are used to connect to the foaming agent material tank, and then the material is transported by a pump. The foaming agent is then fed through the outer pipes 404 into the uniformly distributed first nozzles 401 on the annular conduit 4. Simultaneously, the horizontal conduits 402 on the inner wall of the annular conduit 4 are also provided with uniformly distributed second nozzles 403, which can evenly distribute the delivered foaming agent inside the foaming preparation body 1, allowing the foaming agent to be evenly dispersed in the material, thereby achieving uniform foaming and ensuring the size and distribution of the porous casting material's pores. The uniformity of the foaming agent improves the performance stability of the product and enables the foaming agent to be quickly and evenly distributed throughout the entire foaming preparation body 1 in a short time, allowing it to fully contact and act with the material, thereby improving foaming efficiency, shortening the preparation cycle, and improving production efficiency. At the same time, the foaming agent is sprayed from nozzles at different positions, which generates a certain impact and stirring effect when entering the material, helping to promote further mixing of the foaming agent with other materials, making the material mixture more uniform, and further improving the quality of the porous castable. The foaming agent is made by adding foaming agents such as aluminum powder, which generates gas through a chemical reaction and is injected through the external pipe. This is existing technology and will not be elaborated on further.

[0030] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0031] During operation, the feed inlet 201 provides a convenient entry channel for materials. The reciprocating screw 501 is driven by a motor, and the gear rod 503 slides under the action of the reciprocating screw 501 via the slider 502. This causes the gear rod 503 to slide back and forth on the top cover 2. The gear rod 503 is meshed with the connecting gear 504, which drives the drive rod 3 on the connecting gear 504 to rotate. This causes the first stirring rod 301 on the drive rod 3 to reciprocate inside the foaming preparation body 1. At the same time, the drive rod 3 drives the second stirring rod 304 on the connecting bracket 302 to stir the materials. This increases the stirring path and range of the materials, prevents the materials from forming a stable flow pattern in the same direction, and allows the materials in different areas to mix better.

[0032] When adding the foaming agent, the external pipe 404 is used to connect to the foaming agent material tank and then transport it through the pump body. The foaming agent is then sent through the external pipe 404 to the first nozzle 401 that is evenly distributed on the annular conduit 4. At the same time, the horizontal conduit 402 on the inner wall of the annular conduit 4 is also provided with a second nozzle 403 that is evenly distributed. This can evenly distribute the added foaming agent inside the foaming preparation body 1, so that the foaming agent can be evenly dispersed in the material, thereby achieving uniform foaming.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for the preparation of a porous cast, comprising a foaming preparation body (1), characterised in that: The foaming preparation body (1) is internally equipped with a mixing mechanism for the foaming preparation of porous castables. The mixing mechanism includes: The stirring assembly includes a top cover (2) provided at the top of the foaming preparation body (1), a drive rod (3) connected by a reciprocating assembly in the vertical direction of the top cover (2), a first stirring rod (301) uniformly fixed on the outer wall of the drive rod (3), and a second stirring rod (304) and a scraper bracket (303) connected by a fixing assembly on the side of the outer wall of the drive rod (3) near the top cover (2). The injection assembly includes an annular conduit (4) fixed to the inner wall of the foaming preparation body (1), a first nozzle (401) uniformly fixed to the lower end of the annular conduit (4), a horizontal conduit (402) fixed to the inner wall of the annular conduit (4), and a second nozzle (403) uniformly distributed at the lower end of the horizontal conduit (402).

2. A device for the preparation of a porous castable according to claim 1, characterized in that: The reciprocating assembly includes a slide rail housing (5) fixedly connected to the upper end of the top cover (2). A reciprocating screw (501) is rotatably connected to the slide rail housing (5) in the horizontal direction. A slider (502) is slidably connected to the inner wall of the slide rail housing (5). The slider (502) is threadedly connected to the reciprocating screw (501). A gear rod (503) is fixed to the side wall of the slider (502). A connecting gear (504) is fixed to the upper end of the top cover (2) where the drive rod (3) extends. The connecting gear (504) is meshed with the gear rod (503). The drive rod (3) is rotatably connected to the top cover (2).

3. The apparatus for preparing porous castable according to claim 1, characterized in that: The fixing assembly includes a connecting bracket (302) fixed to the outer wall of the drive rod (3) near the top cover (2), a scraper bracket (303) fixedly connected to the side wall of the connecting bracket (302), and the scraper bracket (303) is attached to the inner wall of the foaming preparation body (1). The second stirring rod (304) is fixedly connected to the other side wall of the connecting bracket (302).

4. The apparatus for preparing porous castable according to claim 1, characterized in that: The lower end of the drive rod (3) is fixed with a spiral conveying shaft (305), and the lower end of the foaming preparation body (1) has a cone-shaped discharge port.

5. The apparatus for preparing porous castable according to claim 1, characterized in that: The lower end of the outlet of the foaming preparation body (1) is fixed with a discharge pipe (202) controlled by a valve, and the upper end of the top cover (2) is fixed with a feed inlet (201) for material entry.

6. The apparatus for preparing porous castable according to claim 1, characterized in that: The annular conduit (4) extends to the outside of the foaming preparation body (1) and is fixed with an external pipe (404). The horizontal conduit (402) is provided with three sets.

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