Uniform mixing device for high-strength precoated sand

Abstract

The utility model relates to a high-strength precoated sand uniform mixing device which comprises a mounting frame, a mixing bin, a liquid leakage pipe, a stirring rod and a material turning plate, the mixing bin is arranged on the mounting frame, the liquid leakage pipe is arranged on the upper portion in the mixing bin, a pushing block is arranged on one side in the liquid leakage pipe, and the stirring rod and the material turning plate are arranged in the mixing bin; the precoated sand mixing device is reasonable in structural design, liquid raw materials are more uniformly added on solid raw materials due to the arrangement of the liquid leakage pipe, the raw materials are more uniformly mixed, the strength of precoated sand is improved, the liquid raw materials in the liquid leakage pipe can be completely extruded due to the arrangement of the pushing block, the loss of the materials is reduced, and the stirring rod and the material turning plate act together, so that the production efficiency is improved. Meanwhile, the raw materials are turned and stirred, so that the raw materials are mixed more quickly, the mixing time is shorter, and electric energy is saved.

Description

Technical Field

[0001] The utility model relates to the field of coated sand processing equipment, in particular to a high-strength coated sand uniform mixing device. Background Technique

[0002] The coated sand process is a technology that applies a protective film or coating substance on the surface of sand grains. Coated sand is a kind of molding material, which is prepared by a certain production process with silica sand, binder phenolic resin, curing agent hexamethylenetetramine, and lubricant calcium stearate, forming a dry granular molding material with resin coating the surface of sand grains and containing a curing agent and a lubricant. Coated sand is mainly applied to two major directions: casting molding and oil and gas exploitation.

[0003] After retrieval, the patent with the authorized announcement number of CN214915597U in China discloses a new type of coated sand mixing device, including a support mechanism, a stirring mechanism, and also an inlet mechanism. The stirring mechanism is arranged on the upper side of the support mechanism, and the inlet mechanism is arranged on the upper side of the stirring mechanism. The above patent has the following deficiencies: when the liquid raw material enters the stirring mechanism, it is unevenly sprinkled. Only one stirring device is arranged in the stirring mechanism, which easily leads to problems such as slow mixing speed and uneven mixing during the mixing of coated sand, thus affecting the coating effect of the finished coated sand, and further affecting the strength of the coated sand. At the same time, the mixing time is long and the power consumption is large. Content of the Utility Model

[0004] In order to overcome the deficiencies of the above-mentioned existing problems, the utility model provides a high-strength coated sand uniform mixing device.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows: a high-strength coated sand uniform mixing device, including a mounting frame, a mixing bin, a liquid leakage pipe, a stirring rod and a turning plate. The mixing bin is arranged on the mounting frame. One side of the mixing bin is provided with a feed inlet. The bottom of the mixing bin is provided with a discharge outlet, and a cover plate is arranged on the discharge outlet. The lower half of the mixing bin is of a cylindrical structure. The liquid leakage pipe is arranged above in the mixing bin. The upper end of the liquid leakage pipe is provided with a feed inlet and extends out of the top of the mixing bin. A plurality of liquid outlet holes are opened at the bottom of the liquid leakage pipe. A pushing block is arranged on one side inside the liquid leakage pipe. The shape of the pushing block is adapted to the cross section of the liquid leakage pipe. A rubber ring is arranged on the outer periphery of the pushing block. The end of the pushing block is connected with a telescopic rod, and the telescopic rod passes through the mixing bin and is installed on one side of the mixing bin. The stirring rod is arranged in the lower half of the mixing bin. A spiral belt is fixedly installed on the stirring rod. Rotating rods are arranged at both the left and right ends of the stirring rod. The turning plate is arranged in the mixing bin and is fixedly installed at the end of the rotating rod. Scrapers are arranged on both the front and rear sides of the turning plate. A rotating block is fixedly installed at the upper end of the rotating rod. The rotating block is sleeved on the stirring rod, and a shaft sleeve is arranged at the connection between the rotating block and the stirring rod and is installed through the shaft sleeve. A rotating cross bar is arranged at the bottom of the mixing bin. Driven wheels are fixedly installed at both the left and right ends of the rotating cross bar. A rotating belt is connected between the driven wheel and the rotating block.

[0006] Preferably, the telescopic rod is connected with a controller and the telescopic of the telescopic rod is controlled by the controller.

[0007] Preferably, the stirring rod is connected with a rotating motor and the rotation of the stirring rod is controlled by the rotating motor.

[0008] Preferably, the turning plate is of an arc-shaped structure and fits the inner wall of the cylindrical structure of the lower half of the mixing bin.

[0009] Preferably, the rotating cross bar is connected with a rotating motor and the rotation of the rotating cross bar is controlled by the rotating motor.

[0010] Preferably, a rotating shaft is arranged on one side of the cover plate, and the cover plate is connected with a solenoid valve and the opening and closing of the cover plate is controlled by the solenoid valve.

[0011] Preferably, the stirring rod and the rotating block are respectively controlled by different rotating motors and the rotation speed of the stirring rod is greater than that of the rotating block.

[0012] The beneficial effects of the present utility model are as follows: The structure of the present utility model is reasonably designed. The setting of the liquid leakage pipe enables the liquid raw materials to be added to the solid raw materials more evenly, facilitating the more uniform mixing of the raw materials, improving the strength of the coated sand. The setting of the pushing block enables all the liquid raw materials in the liquid leakage pipe to be extruded, reducing the material loss. The stirring rod and the material turning plate act together to turn and stir the raw materials simultaneously, making the mixing of the raw materials faster and the mixing time shorter, saving electric energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present utility model will be further described below with reference to the drawings and embodiments.

[0014] Figure 1 is a sectional view of the overall structure of the present utility model;

[0015] Figure 2 is a sectional view of the side structure of the present utility model;

[0016] In the figure, 1, mounting frame; 2, mixing bin; 3, liquid leakage pipe; 4, stirring rod; 5, material turning plate; 6, feed inlet; 7, charging port; 8, pushing block; 9, rubber ring; 10, telescopic rod; 11, spiral belt; 12, rotating rod; 13, scraper; 14, rotating block; 15, rotating cross bar; 16, driven wheel; 17, rotating belt; 18, discharge port; 19, cover plate. SPECIFIC EMBODIMENTS

[0017] All the features disclosed in this specification, or all the steps in any disclosed method or process, except for mutually exclusive features and / or steps, can be combined in any manner.

[0018] Any feature disclosed in this specification (including any additional claims, abstract, and drawings), unless specifically recited, can be replaced by other equivalent or similar-purpose alternative features. That is, unless specifically recited, each feature is only an example in a series of equivalent or similar features.

[0019] Such as Figure 1-2As shown in the figure, a high-strength coated sand uniform mixing device includes a mounting frame 1, a mixing bin 2, a liquid leakage pipe 3, a stirring rod 4 and a material turning plate 5. The mixing bin 2 is arranged on the mounting frame 1. An inlet 6 is opened on one side of the mixing bin 2. An outlet 18 is arranged at the bottom of the mixing bin 2. A cover plate 19 is arranged on the outlet 18. The lower half of the mixing bin 2 is of a cylindrical structure. The liquid leakage pipe 3 is arranged above the inside of the mixing bin 2. The upper end of the liquid leakage pipe 3 is provided with a material inlet 7 and extends out of the top of the mixing bin 2. A plurality of liquid outlet holes are opened at the bottom of the liquid leakage pipe 3. A pushing block 8 is arranged on one side inside the liquid leakage pipe 3. The shape of the pushing block 8 is adapted to the cross-section of the liquid leakage pipe 3. A rubber ring 9 is arranged on the outer periphery of the pushing block 8. The end of the pushing block 8 is connected with a telescopic rod 10. The telescopic rod 10 passes through the mixing bin 2 and is installed on one side of the mixing bin 2. The stirring rod 4 is arranged in the lower half of the mixing bin 2. A spiral belt 11 is fixedly installed on the stirring rod 4. Rotating rods 12 are arranged at the left and right ends of the stirring rod 4. The material turning plate 5 is arranged inside the mixing bin 2. The material turning plate 5 is fixedly installed at the end of the rotating rod 12. Scrapers 13 are arranged on the front and rear sides of the material turning plate 5. A rotating block 14 is fixedly installed at the upper end of the rotating rod 12. The rotating block 14 is sleeved on the stirring rod 4. A shaft sleeve is arranged at the connection between the rotating block 14 and the stirring rod 4 and is installed through the shaft sleeve. A rotating cross bar 15 is arranged at the bottom of the mixing bin 2. Driven wheels 16 are fixedly installed at the left and right ends of the rotating cross bar 15. A rotating belt 17 is connected between the driven wheel 16 and the rotating block 14.

[0020] The telescopic rod 10 is connected with a controller and the telescopic movement of the telescopic rod 10 is controlled by the controller; the stirring rod 4 is connected with a rotating motor and the rotation of the stirring rod 4 is controlled by the rotating motor; the material turning plate 5 is of an arc-shaped structure and is attached to the inner wall of the cylindrical structure of the lower half of the mixing bin 2; the rotating cross bar 15 is connected with a rotating motor and the rotation of the rotating cross bar 15 is controlled by the rotating motor; a rotating shaft is arranged on one side of the cover plate 19. The cover plate 19 is connected with a solenoid valve and the opening and closing of the cover plate 19 are controlled by the solenoid valve; the stirring rod 4 and the rotating block 14 are respectively controlled by different rotating motors and the rotation speed of the stirring rod 4 is greater than the rotation speed of the rotating block 14.

[0021] During use, the solid raw materials are put into the mixing bin 2 from the feeding port 6. Then, the liquid raw materials are put into the liquid leakage pipe 3 from the feeding port 7. The liquid raw materials flow evenly down from the liquid outlet holes of the liquid leakage pipe 3 onto the solid raw materials. At the same time, the rotation motor controls the stirring rod 4 to rotate, thereby driving the spiral belt 11 to rotate. Meanwhile, the rotation motor controls the rotation cross bar 15 to rotate. The driven wheel 16 rotates along with the rotation cross bar 15. The driven wheel 16 drives the rotation belt 17 to rotate. The rotation block 14 rotates along with the rotation belt 17. Affected by the rotation block 14, the rotation rod 12 rotates in the mixing bin 2. The turning plate 5 connected to the end of the rotation rod 12 makes a circular motion along the inner wall surface in the cylindrical part of the mixing bin 2. The scraping plate 13 scrapes up the mixed raw materials on the inner wall surface of the mixing bin 2. The mixed raw materials are continuously stirred in the mixing bin 2 under the action of the turning plate 5. After mixing is completed, the electromagnetic valve is controlled to open the cover plate 19, and the mixed raw materials can be taken out from the discharge port 18.

[0022] This design is ingenious. The setting of the liquid leakage pipe 3 makes the liquid raw materials be added more evenly on the solid raw materials, facilitating more uniform mixing of the raw materials and improving the strength of the coated sand; the setting of the pushing block 8 enables all the liquid raw materials in the liquid leakage pipe 3 to be extruded, reducing material loss; the stirring rod 4 and the turning plate 5 work together to stir and mix the raw materials simultaneously, making the raw material mixing faster, with a shorter mixing time and saving electric energy.

[0023] The present utility model is not limited to the foregoing specific embodiments. The present utility model extends to any new feature or any new combination disclosed in this specification, as well as any new method or process step or any new combination disclosed.

Claims

1. A high-strength coated sand uniform mixing device, characterized in that: The invention comprises a mounting frame (1), a mixing bin (2), a liquid leakage pipe (3), a stirring rod (4) and a turning plate (5), wherein the mixing bin (2) is arranged on the mounting frame (1), a feeding port (6) is provided on one side of the mixing bin (2), a material discharge port (18) is provided at the bottom of the mixing bin (2), a cover plate (19) is provided on the material discharge port (18), the lower half of the mixing bin (2) is a cylindrical structure, and the liquid leakage pipe (3) is provided on the upper surface of the mixing bin (2). The upper end of the leakage pipe (3) is provided with a material inlet (7) and extends through the top of the mixing bin (2). The bottom of the leakage pipe (3) is provided with a plurality of liquid outlet holes. A push block (8) is provided on one side of the leakage pipe (3). The shape of the push block (8) is adapted to the cross-section of the leakage pipe (3). A rubber ring (9) is provided on the outer periphery of the push block (8). The end of the push block (8) is connected to a telescopic rod (10). The telescopic rod (10) passes through The mixing bin (2) is installed on one side of the mixing bin (2), the stirring rod (4) is arranged in the lower part of the mixing bin (2), a spiral belt (11) is fixedly installed on the stirring rod (4), a rotating rod (12) is arranged at the left and right ends of the stirring rod (4), the turning plate (5) is arranged in the mixing bin (2), the turning plate (5) is fixedly installed at the end of the rotating rod (12), and the front and rear sides of the turning plate (5) are provided with scrapers (13), A rotating block (14) is fixedly mounted on the upper end of the rotating rod (12), the rotating block (14) is sleeved on the stirring rod (4), a shaft sleeve is provided at the connection between the rotating block (14) and the stirring rod (4) and the rotating block (14) is mounted via the shaft sleeve, a rotating cross bar (15) is provided at the bottom of the mixing bin (2), driven wheels (16) are fixedly mounted on the left and right ends of the rotating cross bar (15), and a rotating belt (17) is connected between the driven wheel (16) and the rotating block (14).

2. A high-strength coated sand uniform mixing device according to claim 1, characterized in that: The telescopic rod (10) is connected to a controller, and the telescopic movement of the telescopic rod (10) is controlled by the controller.

3. A high-strength coated sand uniform mixing device according to claim 1, characterized in that: The stirring rod (4) is connected to a rotating motor, and the rotation of the stirring rod (4) is controlled by the rotating motor.

4. A high-strength coated sand uniform mixing device according to claim 1, characterized in that: The turning plate (5) is an arc-shaped structure and fits in place with the inner wall of the cylindrical structure of the lower half of the mixing bin (2).

5. The high-strength coated sand uniform mixing device according to claim 1, characterized in that: The rotating cross bar (15) is connected to a rotating motor, and the rotating cross bar (15) is controlled to rotate by the rotating motor.

6. A high-strength coated sand uniform mixing device according to claim 1, characterized in that: A rotating shaft is provided on one side of the cover plate (19); the cover plate (19) is connected to a solenoid valve, and the opening and closing of the cover plate (19) is controlled by the solenoid valve.

7. The high-strength coated sand uniform mixing device according to claim 1, characterized in that: The stirring rod (4) and the rotating block (14) are respectively controlled by different rotating motors, and the rotation speed of the stirring rod (4) is greater than the rotation speed of the rotating block (14).

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