A uniform drying device for castable
By introducing a multi-level mixing and dispersing structure consisting of a dispersion cone, a stirring rod, guide vanes, and spiral blades into the castable drying equipment, the problem of uneven drying caused by castable agglomeration is solved, achieving efficient and uniform drying results, which is suitable for continuous production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI ANNAIJIE FURNACE LINING MATERIAL CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-06-19
AI Technical Summary
Existing castable uniform drying equipment has problems with uneven drying of agglomerated materials, which easily leads to local accumulation and residue, resulting in uneven drying and making it difficult to avoid dead corners.
The mixing and dispersing components include a dispersing cone, a stirring rod with a special shape, guide vanes, a conical cover, and spiral blades. Combined with an electric heater and an insulation shell, the multi-level mixing and dispersing structure achieves uniform drying of materials, avoids agglomeration, and ensures all-round contact heating.
It achieves efficient and uniform drying of castables, avoids local accumulation and dead corners of caking materials, is suitable for continuous production, and reduces manual cleaning work.
Smart Images
Figure CN224382045U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of casting material drying equipment, specifically a casting material uniform drying equipment. Background Technology
[0002] A uniform drying equipment for castables is an industrial device specifically designed for the uniform drying of castable materials (such as refractory materials, ceramic materials, precast concrete components, etc.). Its core objective is to eliminate problems such as material cracking, deformation, or performance degradation caused by uneven temperature or humidity distribution during the drying process, ensuring that the material's interior and surface dry simultaneously to achieve ideal physical properties and structural stability.
[0003] Chinese patent CN219826372U discloses a chemical material drying device that can uniformly dry chemical materials. It uses spiral stirring blades to tumble and stir the chemical materials, which facilitates heat transfer. Hot air is sprayed out through jet holes evenly distributed on the surface of the stirring shaft, which facilitates the expansion of the spray area of hot air and makes full contact with the chemical materials, thereby improving the uniformity of drying of the chemical materials.
[0004] However, when using an inclined drying tank, the equipment relies on the rotation of the tank to turn the material, which is not enough to break up lumpy materials, and it is easy to form local accumulation residues, resulting in uneven drying of materials and dead corners. Utility Model Content
[0005] The purpose of this invention is to provide a uniform drying device for castables, which solves the problem of uneven drying of clumped materials in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a uniform drying device for castable refractory, comprising a support mechanism, an insulation shell disposed at the upper end of the support mechanism, and a stirring and dispersing component disposed inside the insulation shell, wherein the stirring and dispersing component is installed at the upper end of the support mechanism;
[0007] The stirring and dispersing component includes a motor located at the lower end of the support mechanism, a rotating rod located at the output end of the motor, a rotating shaft located outside the rotating rod, a dispersing cone located at the top of the rotating shaft, and a stirring shaped rod, a guide vane, a conical cover, and a spiral blade located on the outer wall of the rotating shaft. The stirring shaped rod is located below the dispersing cone, the guide vane is located below the stirring shaped rod, the conical cover is located below the guide vane, and the spiral blade is located below the conical cover.
[0008] The heat-insulating shell includes a drying cylinder disposed on the outside of the rotating shaft, and electric heaters are uniformly arranged on the inner wall of the drying cylinder.
[0009] Furthermore, a connecting plate is fixedly installed at the lower end of the drying cylinder, a support leg is fixedly installed on the outer wall of the connecting plate, and a stabilizing foot pad is fixedly installed at the lower end of the support leg.
[0010] Furthermore, a ventilation pipe is fixedly installed at the upper end of the drying cylinder, and a feed hopper is fixedly installed at the upper end of the ventilation pipe.
[0011] Furthermore, the feed hopper includes a guide channel 1 located at the upper end of the ventilation pipe, a material mixing channel located at the upper end of the guide channel 1, and a feed cylinder located at the upper end of the material mixing channel.
[0012] Furthermore, the drying cylinder includes a second guide channel located at the lower end of the ventilation pipe, a drying chamber located at the lower end of the second guide channel, a material accumulation chamber located at the lower end of the drying chamber, and a wire connected to the outer wall of the drying chamber.
[0013] Furthermore, a discharge valve is provided at the lower end of the connecting plate.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] This utility model proposes a uniform drying device for castables. Through the setting of a stirring and dispersing component and an insulating shell, during the working process, the material is sequentially driven by a motor to rotate a dispersing cone, a stirring rod, a guide vane, a conical cover, and a spiral blade. In cooperation with the inner wall of the insulating shell, the material is dispersed and broken up, achieving a uniform and efficient drying effect. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the thermal insulation shell structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the feed hopper structure of this utility model;
[0020] Figure 5 This is a schematic diagram of the drying cylinder structure of this utility model;
[0021] Figure 6 This is a schematic diagram of the stirring and dispersing component of this utility model;
[0022] Figure 7 This is a schematic diagram of the support mechanism and some of the stirring and dispersing components of this utility model.
[0023] In the diagram: 1. Support mechanism; 11. Stabilizing foot pad; 12. Support leg; 2. Insulated shell; 21. Connecting plate; 22. Discharge valve; 23. Drying cylinder; 231. Material accumulation chamber; 232. Drying chamber; 233. Electric heater; 234. Guide channel two; 24. Ventilation duct; 25. Feed hopper; 251. Guide channel one; 252. Material mixing channel; 253. Feed cylinder; 3. Mixing and dispersing components; 31. Motor; 32. Rotating rod; 33. Spiral blade; 34. Rotating shaft; 35. Conical cover; 36. Guide blade; 37. Mixing rod; 38. Dispersing cone. Detailed Implementation
[0024] 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.
[0025] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.
[0026] Combination Figure 1 and Figure 2 A uniform drying device for castables includes a support mechanism 1, an insulation shell 2 disposed on the upper end of the support mechanism 1, and a stirring and dispersing component 3 disposed inside the insulation shell 2. The stirring and dispersing component 3 is installed on the upper end of the support mechanism 1.
[0027] The present invention will be further described below with reference to the embodiments.
[0028] Example 1:
[0029] Please see Figure 6 and Figure 7 The stirring and dispersing component 3 includes a motor 31 disposed at the lower end of the support mechanism 1, a rotating rod 32 disposed at the output end of the motor 31, a rotating shaft 34 disposed on the outside of the rotating rod 32, a dispersing cone 38 disposed at the top of the rotating shaft 34, and a stirring shaped rod 37, a guide vane 36, a conical cover 35, and a spiral blade 33 disposed on the outer wall of the rotating shaft 34. The stirring shaped rod 37 is located below the dispersing cone 38, the guide vane 36 is located below the stirring shaped rod 37, the conical cover 35 is located below the guide vane 36, and the spiral blade 33 is located below the conical cover 35.
[0030] The heat-insulating shell 2 includes a drying cylinder 23 located outside the rotating shaft 34. Electric heaters 233 are evenly distributed on the inner wall of the drying cylinder 23. The heat-insulating shell 2 is bolted to the support mechanism 1, forming a semi-enclosed heat-insulating space, reducing heat loss from the electric heaters 233 installed on the inner wall of the drying cylinder 23. The motor 31 starts, and its output rod 32 drives the rotating shaft 34 to rotate synchronously. The rotating shaft 34 drives the dispersing cone 38 to rotate, throwing the material onto the inner wall of the heat-insulating shell 2. Multiple sets of stirring rods 37 are provided; their bodies are curved and break up the material as they rotate with the rotating shaft 34, especially for agglomerated materials, improving drying efficiency. A conical shroud 35 is installed at the lower end of the guide vanes 36, guiding the evenly dispersed material towards the drying surface. The material first slides down the inner wall of the drying cylinder 23, which is preheated by the electric heater 233, under the action of gravity, to the bottom of the drying cylinder 23 to complete the first drying. Then, under the rotation of the spiral blades 33, the material at the bottom of the drying cylinder 23 is conveyed upward to the top of the spiral blades 33. The material at the top is evenly sprinkled onto the inner wall of the drying cylinder 23 under the action of centrifugal force, and then slides down the inner wall of the heated drying cylinder 23 to the bottom of the drying cylinder 23 again to achieve the second drying. The material is repeatedly dried in this up-and-down cycle to achieve multiple drying, further improving the drying effect. The guide blades 36 are spirally distributed around the rotating shaft 34. The rotating guide blades 36 will suck the material remaining on the stirring rod 37 into the drying cylinder 23 to avoid material loss.
[0031] A connecting plate 21 is fixedly installed at the lower end of the drying cylinder 23. A support leg 12 is fixedly installed on the outer wall of the connecting plate 21. A stabilizing foot pad 11 is fixedly installed at the lower end of the support leg 12. Multiple sets of support legs 12 are provided, and each support leg 12 is equipped with a stabilizing foot pad 11 to form a stable support structure, ensuring that the equipment is placed stably as a whole and reducing equipment vibration when the stirring and dispersing component 3 is working.
[0032] Specifically, after the motor 31 starts, it drives the rotating shaft 34 to rotate via the rotating rod 32 at the output end. This causes the dispersing cone 38, stirring rod 37, guide vanes 36, conical cover 35, and spiral blades 33 mounted on its outer wall to rotate synchronously, forming a multi-level stirring and dispersing structure from top to bottom. The dispersing cone 38 at the top of the rotating shaft 34 throws the falling material onto the inner wall. The stirring rod 37 below the dispersing cone 38 breaks up and disperses any clumps of material during the throwing process, ensuring uniform drying and contact of the subsequent material. The guide vanes 36 below the stirring rod 37 further disperse the material. Material remaining on the surface of rod 37 is peeled off and carried into the drying area to avoid material retention and loss. The conical cover 35 below the guide vane 36 guides the evenly dispersed material to slide down the inner wall of the drying cylinder 23. Under the action of gravity, the material adheres tightly to the cylinder wall preheated by the electric heater 233, and the surface moisture evaporates quickly, completing the first drying. The material falling to the bottom is lifted to the top by the rotation of the spiral blade 33, and is sprayed onto the inner wall again under the action of centrifugal force, forming an upper and lower circulation path for repeated drying, thereby avoiding drying dead corners caused by uneven particle size. No manual disassembly and cleaning is required, making it suitable for continuous production.
[0033] Example 2:
[0034] Please see Figure 3 , Figure 4 and Figure 5 A ventilation duct 24 is fixedly installed at the upper end of the drying cylinder 23, and a feed hopper 25 is fixedly installed at the upper end of the ventilation duct 24. The inner wall of the drying cylinder 23 is funnel-shaped, which can guide the material to flow to the bottom of the drying cylinder 23 under the action of gravity. The ventilation duct 24 is connected to the drying cylinder 23 and the upper end is connected to the feed hopper 25. The pipe diameter is designed to be wider at the top and narrower at the bottom to guide the material to fall at a uniform speed and at the same time ensure the uniform flow of air.
[0035] The feeding hopper 25 includes a guide channel 251 located at the upper end of the ventilation duct 24, a material mixing channel 252 located at the upper end of the guide channel 251, and a feeding cylinder 253 located at the upper end of the material mixing channel 252. The guide channel 251 is connected to the upper end of the ventilation duct 24, thereby guiding the material to converge into the ventilation duct 24 by gravity. The feeding cylinder 253 is fixedly installed on the material mixing channel 252 and adopts a trumpet-shaped design to provide a large capacity material feeding space, which is convenient for batch feeding.
[0036] The drying cylinder 23 includes a second guide channel 234 located at the lower end of the ventilation duct 24, a drying chamber 232 located at the lower end of the second guide channel 234, and a material accumulation chamber 231 located at the lower end of the drying chamber 232. The outer wall of the drying chamber 232 is connected to a wire. The upper end of the second guide channel 234 is connected to the ventilation duct 24, and the lower end is connected to the drying chamber 232, ensuring that the material conveyed by the ventilation duct 24 falls evenly into the drying chamber 232. The electric heater 233, which is connected to an external power source through the wire, releases heat into the drying chamber 232. The drying chamber 232 is wider at the top and narrower at the bottom, thereby extending the contact time of the material on the inner wall of the drying chamber 232, allowing the material to fully contact the heated inner wall, accelerating moisture evaporation, and achieving uniform drying. The lower end of the drying chamber 232 is fixedly connected to the material accumulation chamber 231, which facilitates the material to gather towards the center by gravity, reducing the material residue on the inner wall of the drying chamber 232.
[0037] The lower end of the connecting plate 21 is provided with a discharge valve 22, which is connected to the material accumulation chamber 231. When the equipment is working, the discharge valve 22 is closed to prevent material leakage. After the equipment is finished working, the discharge valve 22 can be opened to take out the uniformly dried material.
[0038] Specifically, after the material is poured into the feed cylinder 253, it is initially dispersed in the material mixing channel 252 and then enters the first guide channel 251 to accelerate its fall to the ventilation duct 24. The material flow rate is controlled by gravity acceleration, providing a stable input for subsequent mixing and dispersion. At the same time, it allows the rising hot and humid air in the drying chamber 232 to be discharged from the top of the feed hopper 25, forming natural convection. The material falls into the drying chamber 232 through the second guide channel 234 and slowly slides down the inclined heating wall, making full contact with the cylinder wall heated by the electric heater 233. The material is dried through heat conduction. The design of the drying chamber 232, which is wider at the top and narrower at the bottom, extends the material residence time and ensures continuous drying. The dried material falls into the bottom material accumulation chamber 231 and is gathered to the discharge port by gravity. The discharge valve 22 has a high airtightness and a fast opening and closing design to ensure zero heat leakage during the drying process and convenient discharge.
[0039] 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.
[0040] 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 uniform drying apparatus for a castable, characterized by: It includes a support mechanism, an insulation shell disposed at the upper end of the support mechanism, and a stirring and dispersing component disposed inside the insulation shell, wherein the stirring and dispersing component is installed at the upper end of the support mechanism. The stirring and dispersing component includes a motor located at the lower end of the support mechanism, a rotating rod located at the output end of the motor, a rotating shaft located outside the rotating rod, a dispersing cone located at the top of the rotating shaft, and a stirring shaped rod, a guide vane, a conical cover, and a spiral blade located on the outer wall of the rotating shaft. The stirring shaped rod is located below the dispersing cone, the guide vane is located below the stirring shaped rod, the conical cover is located below the guide vane, and the spiral blade is located below the conical cover. The heat-insulating shell includes a drying cylinder disposed on the outside of the rotating shaft, and electric heaters are uniformly arranged on the inner wall of the drying cylinder.
2. A uniform drying apparatus for a castable material according to claim 1, characterized in that: A connecting plate is fixedly installed at the lower end of the drying cylinder, a support leg is fixedly installed on the outer wall of the connecting plate, and a stabilizing foot pad is fixedly installed at the lower end of the support leg.
3. The uniform drying apparatus for castable material according to claim 1, wherein: A ventilation pipe is fixedly installed at the upper end of the drying cylinder, and a feed hopper is fixedly installed at the upper end of the ventilation pipe.
4. A uniform drying apparatus for a castable according to claim 3, characterized in that: The feeding hopper includes a guide channel 1 located at the upper end of the ventilation pipe, a material mixing channel located at the upper end of the guide channel 1, and a feeding cylinder located at the upper end of the material mixing channel.
5. The uniform drying equipment for castables according to claim 3, characterized in that: The drying cylinder includes a second guide channel located at the lower end of the ventilation pipe, a drying chamber located at the lower end of the second guide channel, a material accumulation chamber located at the lower end of the drying chamber, and a wire connected to the outer wall of the drying chamber.
6. A uniform drying apparatus for a castable material as claimed in claim 2, wherein: A discharge valve is provided at the lower end of the connecting plate.