Drying device for precoated sand coating production

Abstract

The utility model discloses a drying device for precoated sand coating production, and relates to the technical field of precoated sand coating processing equipment, the drying device comprises a drying tank body, the top of the drying tank body is provided with a feed inlet, the inner wall of the feed inlet is provided with a limiting rod, the outer wall of the limiting rod is provided with a reset spring, and the reset spring is connected with the drying tank body. The top of the limiting rod is provided with a pressing ring, and the bottom of the limiting rod is provided with a filter screen. Through the arrangement of the feeding port, the limiting rod, the reset spring, the pressing ring and the filter screen, powdery precoated sand paint is poured into the feeding port, then the precoated sand paint is filtered through the filter screen, large-particle solid impurities are intercepted, meanwhile, the pressing ring is continuously pressed in the feeding process, and therefore the precoated sand paint can be evenly mixed. And the pressing ring reciprocates through the elastic force of the reset spring, so that the filter screen reciprocates along with the pressing ring, powdery precoated sand paint is prevented from being accumulated and blocked on the surface of the filter screen, and the feeding efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of coated sand coating processing equipment, specifically a drying device for coated sand coating production. Background Technology

[0002] Drying is a crucial step in the production of coated sand coatings. Coated sand coatings typically consist of various components, including refractory materials, binders, and suspending agents. After these components are mixed and applied to the surface of coated sand, the coating needs to be dried to remove moisture or solvents, ensuring a firm adhesion and forming a high-performance coating. However, existing coated sand coatings mainly rely on natural air drying, which has a long drying cycle and affects processing efficiency. Furthermore, other solid impurities may be introduced into the coated sand coating during production. If not filtered in time, this can lead to uneven coating, affecting the smoothness and evenness of the coating, thus reducing the surface quality of the casting. It may also create defects on the casting surface, such as pitting and sand holes, affecting the appearance and performance of the casting. To solve these problems, a drying device for the production of coated sand coatings is needed.

[0003] An existing type of coated sand coating has problems such as not being able to dry quickly, not being able to filter the coated sand coating, and not being able to prevent the feed from clogging. Therefore, there is an urgent need for a drying device for the production of coated sand coating. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a drying device for the production of coated sand coatings, so as to solve the problems that existing coated sand coatings cannot be dried quickly, cannot be filtered, and cannot prevent clogging during feeding.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drying device for producing coated sand coatings, comprising a drying tank body, a feed inlet installed at the top of the drying tank body, a limit rod installed on the inner wall of the feed inlet, a return spring installed on the outer wall of the limit rod, a pressure ring installed at the top of the limit rod, a filter screen installed at the bottom of the limit rod, hot air channels provided on both outer walls of the drying tank body, a hot air blower installed at the top of the hot air channel, a heating pipe installed at the bottom of the hot air blower, a dustproof plate installed on the side wall of the hot air channel, a power motor installed on the outer wall of the dustproof plate, fan blades installed on the outer wall of the power motor, a rotary motor installed at the bottom of the drying tank body, a turntable installed at the top of the rotary motor, and a stirring rod installed at the top of the turntable.

[0006] Preferably, the drying tank body is welded to the feed inlet, and the inner wall of the feed inlet has an open design.

[0007] Preferably, the limiting rods are arranged in a circular array with the central axis of the feed inlet as the center, and the limiting rods are movably connected to the feed inlet.

[0008] Preferably, the pressure ring forms a telescopic structure with the feed inlet via a reset spring, and the outer diameter of the filter screen matches the inner diameter of the drying tank body.

[0009] Preferably, the hot air channel is symmetrically arranged with the central axis of the drying tank body as the center, and the heating tubes are evenly distributed with the central axis of the hot air channel as the center.

[0010] Preferably, the turntable forms a rotating structure with the drying tank body via a rotary motor, and the stirring rods are arranged in a ring array with the central axis of the turntable as the center.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model uses a feed inlet, a limiting rod, a return spring, a pressure ring, and a filter screen to pour powdered coated sand paint into the feed inlet. The coated sand paint is then filtered through the filter screen to intercept large solid particles. At the same time, the pressure ring is continuously pressed during the feeding process. The pressure ring reciprocates due to the elastic force of the return spring, which causes the filter screen to reciprocate accordingly. This prevents the powdered coated sand paint from accumulating and clogging on the surface of the filter screen, thereby improving the feeding efficiency.

[0013] 2. This utility model, through the setting of a hot air channel, hot air blower, heating pipe, dustproof plate, power motor, fan blade, rotary motor, turntable and stirring rod, when the powdered coated sand coating enters the drying tank, the rotary motor is started to drive the turntable and stirring rod to rotate, so as to stir the coated sand coating at a uniform speed and accelerate the evaporation of internal moisture. At the same time, the hot air blower is started to raise the temperature of the heating pipe, and then the power motor drives the fan blade to blow dry hot air into the drying tank. With the use of the stirring rod, the drying efficiency of the coated sand coating is further improved. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of the present utility model from the front view;

[0015] Figure 2 This is a structural schematic diagram showing the details of the components surrounding the filter screen of this utility model;

[0016] Figure 3 This is a schematic diagram showing the internal cross-section of the hot air channel of this utility model;

[0017] Figure 4 This is a schematic diagram showing the internal cross-section of the drying tank body of this utility model.

[0018] In the diagram: 1. Drying tank body; 2. Feed inlet; 3. Limiting rod; 4. Return spring; 5. Pressure ring; 6. Filter screen; 7. Hot air passage; 8. Hot air blower; 9. Heating tube; 10. Dustproof plate; 11. Power motor; 12. Fan blade; 13. Rotary motor; 14. Turntable; 15. Stirring rod. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0020] The embodiments of this utility model will be described below based on its overall structure.

[0021] Please see Figure 1-4 A drying device for producing coated sand coatings includes a drying tank body 1. A feed inlet 2 is installed on the top of the drying tank body 1. A limit rod 3 is installed on the inner wall of the feed inlet 2, and a return spring 4 is installed on the outer wall of the limit rod 3. A pressure ring 5 is installed on the top of the limit rod 3, and a filter screen 6 is installed on the bottom of the limit rod 3. The drying tank body 1 is welded to the feed inlet 2, and the inner wall of the feed inlet 2 is designed with openings. The limit rods 3 are arranged in a circular array around the central axis of the feed inlet 2, and are movably connected to the feed inlet 2. The pressure ring 5 is connected to the feed inlet 2 via the return spring 4. The structure is telescopic, with the outer diameter of the filter screen 6 matching the inner diameter of the drying tank body 1. Powdered coated sand paint is poured into the feed inlet 2 via the feed port 2, limit rod 3, return spring 4, pressure ring 5, and filter screen 6. The coated sand paint is then filtered through the filter screen 6, intercepting large solid particles. Simultaneously, the pressure ring 5 is continuously pressed during the feeding process, causing it to reciprocate under the elastic force of the return spring 4. This reciprocates the pressure ring 6, preventing the powdered coated sand paint from accumulating and clogging on the filter screen 6, thus improving feeding efficiency.

[0022] Please see Figure 1-4A drying device for producing coated sand paint includes a drying tank body 1 with hot air channels 7 on both outer walls. A hot air blower 8 is installed at the top of the hot air channel 7, and a heating pipe 9 is installed at the bottom of the hot air blower 8. Dustproof plates 10 are installed on the side walls of the hot air channels 7, and a power motor 11 is installed on the outer wall of the dustproof plate 10. Fan blades 12 are installed on the outer wall of the power motor 11. A rotary motor 13 is installed at the bottom of the drying tank body 1, and a turntable 14 is installed on the top of the rotary motor 13. A stirring rod 15 is installed on the top of the turntable 14. The hot air channels 7 are symmetrically arranged around the central axis of the drying tank body 1, and the heating pipes 9 are evenly spaced around the central axis of the hot air channels 7. The turntable 14 is connected to the drying tank body 1 by the rotary motor 13. The drying tank body 1 has a rotating structure, and the stirring rods 15 are arranged in a circular array around the central axis of the turntable 14. Through the set hot air channel 7, hot air blower 8, heating pipe 9, dustproof plate 10, power motor 11, fan blade 12, rotary motor 13, turntable 14 and stirring rods 15, when the powdered coated sand coating enters the drying tank body 1, the rotary motor 13 is started to drive the turntable 14 and stirring rods 15 to rotate, so as to stir the coated sand coating at a uniform speed and accelerate the evaporation of internal moisture. At the same time, the hot air blower 8 is started to raise the temperature of the heating pipe 9, and then the power motor 11 drives the fan blade 12 to blow dry hot air into the drying tank body 1. With the use of stirring rods 15, the drying efficiency of the coated sand coating is further improved.

[0023] Working Principle: In use, first move the device to the desired position, then pour the powdered coated sand coating into the feed inlet 2. The coating is then filtered through the filter screen 6 to intercept large solid particles. Simultaneously, during the feeding process, the pressure ring 5 is continuously pressed. The pressure ring 5 reciprocates due to the elasticity of the return spring 4, causing the filter screen 6 to reciprocate as well, preventing the powdered coated sand coating from accumulating and clogging on its surface. After the powdered coated sand coating enters the drying tank body 1, the rotary motor 13 is started, driving the turntable 14 and stirring rod 15 to rotate, uniformly stirring the coating and accelerating internal moisture evaporation. Simultaneously, the hot air blower 8 is started to raise the temperature of the heating tube 9. The power motor 11 then drives the fan blades 12 to blow dry hot air into the drying tank body 1. Combined with the use of the stirring rod 15, this further improves the drying efficiency of the coated sand coating. This completes the device's operation. Content not described in detail in this manual is prior art known to those skilled in the art.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A drying apparatus for producing coated sand coatings, comprising a drying tank body (1), characterized in that: The top of the drying tank body (1) is equipped with a feed inlet (2), the inner wall of the feed inlet (2) is equipped with a limit rod (3), the outer wall of the limit rod (3) is equipped with a return spring (4), the top of the limit rod (3) is equipped with a pressure ring (5), the bottom of the limit rod (3) is equipped with a filter screen (6), both sides of the outer wall of the drying tank body (1) are provided with hot air channels (7), the top of the hot air channels (7) is equipped with a hot air blower (8), and the... A heating tube (9) is installed at the bottom of the hot air blower (8), a dustproof plate (10) is installed on the side wall of the hot air channel (7), a power motor (11) is installed on the outer wall of the dustproof plate (10), a fan blade (12) is installed on the outer wall of the power motor (11), a rotary motor (13) is installed at the bottom of the drying tank body (1), a turntable (14) is installed on the top of the rotary motor (13), and a stirring rod (15) is installed on the top of the turntable (14).

2. The drying apparatus for producing coated sand coatings according to claim 1, characterized in that: The drying tank body (1) is welded to the feed inlet (2), and the inner wall of the feed inlet (2) is designed with an open hole.

3. The drying apparatus for producing coated sand coatings according to claim 1, characterized in that: The limiting rods (3) are arranged in a ring array with the central axis of the feed inlet (2) as the center, and the limiting rods (3) are movably connected to the feed inlet (2).

4. A drying apparatus for producing coated sand coatings according to claim 1, characterized in that: The pressure ring (5) forms a telescopic structure with the feed inlet (2) through the return spring (4), and the outer diameter of the filter screen (6) matches the inner diameter of the drying tank body (1).

5. A drying apparatus for producing coated sand coatings according to claim 1, characterized in that: The hot air channel (7) is symmetrically arranged with the central axis of the drying tank body (1) as the center, and the heating tubes (9) are evenly distributed with the central axis of the hot air channel (7) as the center.

6. A drying apparatus for producing coated sand coatings according to claim 1, characterized in that: The turntable (14) forms a rotating structure with the drying tank body (1) via a rotary motor (13), and the stirring rods (15) are arranged in a ring array with the central axis of the turntable (14) as the center.

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