Expendable mold sand cooling sand bin
By designing a lost foam casting sand cooling silo and utilizing a negative pressure exhaust system with a permeable plate and a guide hood, the problem of low cooling efficiency of sand silos in existing technologies has been solved, achieving efficient initial cooling of the casting sand and rapid cooling of subsequent cooling equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINGMEN XINJIAN MASCH CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-07-17
AI Technical Summary
The existing sand storage facilities lack cooling functions during the lost foam sand cooling process, which affects the working efficiency of the cooling equipment.
A lost foam sand cooling silo was designed, comprising a silo body, a dispersion plate, a vent plate, and a flow guide hood. The design of the vent plate and flow guide hood enables negative pressure exhaust, rapidly dissipates heat, and improves cooling efficiency.
Preliminary cooling during the storage of molding sand improves the cooling efficiency of subsequent cooling equipment, achieving a highly efficient molding sand cooling process.
Smart Images

Figure CN224508384U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lost foam sand recycling technology, specifically to a lost foam sand cooling sand silo. Background Technology
[0002] Dry sand negative pressure lost foam casting technology is a precision molding casting technology. Before the lost foam sand is recycled, it needs to be shaken off and cooled in sequence. After the sand is crushed by the sand shaker, it enters the sand silo for storage and then is cooled in batches for reuse. The existing sand silo does not have a cooling function, which will directly affect the working efficiency of the cooling equipment in the whole cooling process. Utility Model Content
[0003] The purpose of this invention is to address the above-mentioned shortcomings by providing a lost foam sand cooling sand silo.
[0004] This utility model includes a silo body, with a feed pipe located at the center of the top of the silo body. A dispersion plate is movably connected to the silo body below the feed pipe. A set of venting plates is provided on each of the four side walls of the silo body. A flow guide is provided on the silo body outside the venting plates, and the flow guides are connected to each other through an exhaust pipe.
[0005] The bottom of the silo is a four-sided pyramidal structure, and a discharge pipe is provided on one side of the four-sided pyramidal structure. The top of the silo is detachably connected to a cover, and the feed pipe is located on the cover.
[0006] The dispersion plate is a conical or square pyramidal structure, and it is suspended inside the silo by a set of ropes.
[0007] The four sides of the silo are provided with a set of ventilation plate mounting holes. The ventilation plates can be detachably installed in the corresponding ventilation plate mounting holes. The ventilation holes of the ventilation plates are grid holes with the openings tilted upwards.
[0008] The bottom of the deflector and the side that fits against the hull are open. The top of the deflector is a trapezoidal structure that is high in the middle and low at both ends. An exhaust port is provided at the top of the trapezoidal structure. The exhaust pipe is connected to the corresponding exhaust port of the deflector through a set of branch pipes.
[0009] The advantages of this invention are: the cooling sand silo can perform preliminary cooling and temperature reduction on the molding sand during storage, which facilitates the subsequent cooling equipment to quickly cool the molding sand and improves cooling efficiency. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model.
[0011] Figure 2 This is a schematic diagram of the internal structure of this utility model. Detailed Implementation
[0012] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0013] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0014] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the utility model. Furthermore, if terms such as "first" or "second" appear in the description of this utility model, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0015] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0016] As shown in the attached figure, the present invention includes a hopper body 16, a feed pipe is provided at the top center of the hopper body 16, a dispersion plate 17 is movably connected to the hopper body 16 below the feed pipe, a set of venting plates 20 are provided on the four sides of the hopper body 16, and a flow guide hood 18 is provided on the hopper body 16 outside the venting plate 20, and the flow guide hoods 18 are connected to each other through an exhaust pipe 19.
[0017] The crushed sand particles enter the silo 16 through the feed pipe. As they fall, they are dispersed by the dispersion plate 17, which facilitates the rapid dissipation of heat during the uniform falling process. Then, they enter the guide hood 18 through the vent plate 20. The guide hood 18 exhausts the hot air to the outside through the exhaust pipe 19. The exhaust pipe 19 extends to the outside and can form a chimney effect, creating a negative pressure inside the guide hood 18, thereby carrying away the heat.
[0018] Furthermore, the bottom of the hopper 16 is a four-sided pyramidal structure, and a discharge pipe is provided on one side of the four-sided pyramidal structure. The top of the hopper 16 is detachably connected to a cover, and the feed pipe is located on the cover.
[0019] Preferably, the dispersion plate 17 is a conical or quadrangular pyramidal structure, which can quickly disperse the sand particles in all directions. The dispersion plate 17 is suspended inside the silo body 16 by a set of pull ropes. The dispersion plate 17 is a movable part and will shake when impacted by sand particles. The sand particles fall onto the bottom of the silo body 16 through the dispersion plate 17 and are spread more evenly.
[0020] Furthermore, a set of ventilation plate mounting holes are provided on the four sides of the silo body 16. The ventilation plate 20 can be detachably installed in the corresponding ventilation plate mounting hole. The air holes of the ventilation plate 20 are grid holes with the openings tilted upwards to prevent sand particles from splashing out from the grid holes.
[0021] Preferably, the bottom of the flow guide 18 and the side that fits against the compartment 16 are open, the top of the flow guide 18 is a trapezoidal structure with a high middle and low ends, and an exhaust port is provided at the top of the trapezoidal structure. The exhaust pipe 19 is connected to the corresponding exhaust port of the flow guide 18 through a set of branch pipes.
Claims
1. An exfoliation mold sand cooling sand bin, characterized by Includes a silo body (16), with a feed pipe at the top center of the silo body (16), and a dispersion plate (17) movably connected to the silo body (16) below the feed pipe. A set of air vents (20) are provided on the four sides of the silo body (16), and a flow guide (18) is provided on the silo body (16) outside the air vents (20), and the flow guides (18) are connected to each other through an exhaust pipe (19).
2. An exfoliation mold sand cooling bin according to claim 1, characterized in that The bottom of the silo (16) is a four-sided pyramidal structure, and a discharge pipe is provided on one side of the four-sided pyramidal structure. The top of the silo (16) is detachably connected to a cover, and the feed pipe is located on the cover.
3. An expendable mold sand cooling bin according to claim 1, characterized in that The dispersion plate (17) is a conical or quadrangular pyramidal structure, and the dispersion plate (17) is suspended inside the silo body (16) by a set of ropes.
4. An expendable mold sand cooling bin according to claim 1, wherein The four sides of the silo body (16) are provided with a set of ventilation plate mounting holes. The ventilation plate (20) can be detachably installed in the corresponding ventilation plate mounting hole. The air holes of the ventilation plate (20) are grid holes with the opening tilted upward.
5. An expendable mold sand cooling bin according to claim 1, wherein The bottom of the deflector (18) and the side that is in contact with the compartment (16) are open. The top of the deflector (18) is a trapezoidal structure with a high middle and low ends, and an exhaust port is provided at the top of the trapezoidal structure. The exhaust pipe (19) is connected to the exhaust port of the corresponding deflector (18) through a set of branch pipes.