Sand screening machine for concrete production

Abstract

The utility model discloses a sand screening machine for concrete production, which comprises an outer barrel, the top of the outer barrel is fixedly connected with an outer stopper, an inner stopper is arranged in the outer stopper, the bottom of the inner stopper is fixedly connected with a stirring shaft, and the bottom of the stirring shaft is fixedly connected with a motor. A first filter sieve, a second filter sieve, a third filter sieve and a fourth filter sieve are fixedly connected to the circumferential surface of the stirring shaft, and the outer barrel, the stirring shaft, the first filter sieve, the second filter sieve, the third filter sieve, the fourth filter sieve, the first side sieve, the second side sieve, the third side sieve and the fourth side sieve are arranged; the four filtering areas are communicated and do not influence one another, concrete can be dispersed and fully filtered, uneven filtering, long filtering time and the like caused by accumulation due to excessive input are avoided, the structure is simple, and the filtering efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete production, in particular to a sand screening machine for concrete production. Background Art

[0002] A sand screening machine is a machine that separates sand of different sizes through a screen. In the production process of concrete, sand of specified sizes is required, so it is necessary to remove the unqualified large particles in the sand.

[0003] In the existing concrete sand screening machines, filtration is generally performed through devices such as vibrating screens or filter nets. During filtration, since the feeding port is fixed, concrete accumulation is easily generated due to excessive feeding, thereby reducing the sand screening efficiency. The mobile feeding port has a complex structure and is not conducive to cost control. Utility Model Content

[0004] The utility model provides a sand screening machine for concrete production. Concrete is put into a rotating filtering device. Four filtering areas are connected but do not affect each other. Concrete can be dispersed and fully filtered to avoid accumulation caused by excessive input and uneven filtration, long filtration time, etc. The utility model has a simple structure and greatly improves the filtration efficiency. Impurities after filtration can also be removed along the impurity discharge groove to improve the impurity discharge efficiency.

[0005] To achieve the above-mentioned purpose, a sand screening machine for concrete production is provided, comprising: an outer barrel, an outer stopper is fixedly connected to the top of the outer barrel, an inner stopper is arranged inside the outer stopper, a stirring shaft is fixedly connected to the bottom of the inner stopper, a first filter screen, a second filter screen, a third filter screen and a fourth filter screen are fixedly connected to the circumferential surface of the stirring shaft, the first filter screen, the second filter screen, the third filter screen and the fourth filter screen are sequentially distributed on the circumferential surface of the stirring shaft in an upper and lower circumferential manner, a first side screen is fixedly connected between the first filter screen and the second filter screen, a second side screen is fixedly connected between the second filter screen and the third filter screen, a third side screen is fixedly connected between the third filter screen and the fourth filter screen, and a fourth side screen is fixedly connected between the fourth filter screen and the first filter screen;

[0006] A sealing plate is provided inside the outer barrel, an electric rod is fixedly connected to the top of the sealing plate, an inner ring is fixedly connected to the top fixed end of the electric rod, a circumferential surface of the inner ring is fixedly connected to the inner wall of the outer barrel, a debris discharge port is provided on the circumferential surface of the outer barrel, a debris discharge groove is provided outside the debris discharge port, the debris discharge groove is fixedly connected to the circumferential surface of the outer barrel, a sand discharge port is provided on the circumferential surface of the outer barrel, a sand discharge pipe is fixedly connected to the circumferential surface of the outer barrel, and a motor and a support are fixedly connected to the bottom of the outer barrel.

[0007] According to the sand screening machine for concrete production, the sand discharge pipe is connected to the sand discharge port, and the sand discharge pipe is located below the fourth filter screen.

[0008] According to the sand screening machine for concrete production, the output end of the motor passes through the bottom of the outer barrel and is fixedly connected to the bottom of the stirring shaft.

[0009] According to the sand screening machine for concrete production, the first filter screen, the second filter screen, the third filter screen and the fourth filter screen are all fan-shaped, and the outer sides form an angle of 75 degrees downward with the vertical direction.

[0010] According to the sand screening machine for concrete production, the sealing plate, the impurity discharge port and the impurity discharge groove are all spiral-shaped, and the impurity discharge port is located on the outside of the sealing plate, and the impurity discharge groove is located on the outside of the impurity discharge port. The sealing plate is a 5mm thick steel plate.

[0011] According to the sand screening machine for concrete production, the number of the pillars is plural and evenly distributed at the bottom of the outer barrel.

[0012] Beneficial effects of the utility model:

[0013] 1. By setting the outer barrel, the stirring shaft, the first filter screen, the second filter screen, the third filter screen, the fourth filter screen, the first side screen, the second side screen, the third side screen, and the fourth side screen, the concrete is put into the rotating filter device, and the four filter areas are connected but do not affect each other, so the concrete can be dispersed and fully filtered, avoiding excessive accumulation and uneven filtering, long filtering time, etc. The structure is simple and the filtering efficiency is greatly improved;

[0014] 2. By setting the sealing plate, electric rod, inner ring, impurity discharge port and impurity discharge groove, the filtered impurities can be removed along the impurity discharge groove to improve the impurity discharge efficiency.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0017] Figure 1 This is a front view of a sand screening machine for concrete production according to the utility model;

[0018] Figure 2 This is the internal structure diagram of a sand screening machine for concrete production according to the utility model;

[0019] Figure 3 This is a structural diagram of a sealing plate of a sand screening machine for concrete production according to the utility model;

[0020] Figure 4 The utility model is a cross-sectional structural diagram of an outer barrel of a sand screening machine for concrete production.

[0021] Legend:

[0022] 1. Outer barrel; 2. Outer stopper; 3. Inner stopper; 4. Stirring shaft; 5. First filter screen; 6. Second filter screen; 7. Third filter screen; 8. Fourth filter screen; 9. First side screen; 10. Second side screen; 11. Third side screen; 12. Fourth side screen; 13. Sealing plate; 14. Electric rod; 15. Inner ring; 16. Debris discharge port; 17. Debris discharge trough; 18. Sand discharge port; 19. Motor; 20. Sand discharge pipe; 21. Support. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] Reference Figure 1-4 The utility model embodiment is a sand screening machine for concrete production, which includes: an outer barrel 1, an outer stopper 2 is fixedly connected to the top of the outer barrel 1, an inner stopper 3 is arranged inside the outer stopper 2, a feeding port is formed between the outer stopper 2 and the inner stopper 3, a stirring shaft 4 is fixedly connected to the bottom of the inner stopper 3, a first filter screen 5, a second filter screen 6, a third filter screen 7 and a fourth filter screen 8 are fixedly connected to the circumferential surface of the stirring shaft 4, the first filter screen 5, the second filter screen 6, the third filter screen 7 and the fourth filter screen 8 are sequentially distributed on the circumferential surface of the stirring shaft 4, a first side screen 9 is fixedly connected between the first filter screen 5 and the second filter screen 6, a second side screen 10 is fixedly connected between the second filter screen 6 and the third filter screen 7, a third side screen 11 is fixedly connected between the third filter screen 7 and the fourth filter screen 8, a fourth side screen 12 is fixedly connected between the fourth filter screen 8 and the first filter screen 5, the first filter screen 5, the second filter screen 6, the third filter screen 7 and the fourth filter screen 8 are all fan-shaped, and the outer side is downward at an angle of 75 degrees to the vertical direction.

[0025] The outer barrel 1 is provided with a sealing plate 13 inside, the top of the sealing plate 13 is fixedly connected with an electric rod 14, the top fixed end of the electric rod 14 is fixedly connected with an inner ring 15, the circumferential surface of the inner ring 15 is fixedly connected to the inner wall of the outer barrel 1, the circumferential surface of the outer barrel 1 is provided with a debris discharge port 16, the outer side of the debris discharge port 16 is provided with a debris discharge groove 17, the debris discharge groove 17 is fixedly connected to the circumferential surface of the outer barrel 1, the sealing plate 13, the debris discharge port 16 and the debris discharge groove 17 are all spiral, and the debris discharge port 16 is located on the outer side of the sealing plate 13, and the debris discharge groove 17 is fixedly connected to the circumferential surface of the outer barrel 1. Located on the outside of the impurity discharge port 16, the sealing plate 13 is a steel plate with a thickness of 5 mm. A sand discharge port 18 is arranged on the circumferential surface of the outer barrel 1. A sand discharge pipe 20 is fixedly connected to the circumferential surface of the outer barrel 1. The sand discharge pipe 20 is connected with the sand discharge port 18. The sand discharge pipe 20 is located below the fourth filter screen 8. A motor 19 and a support 21 are fixedly connected to the bottom of the outer barrel 1. The output end of the motor 19 passes through the bottom of the outer barrel 1 and is fixedly connected to the bottom of the stirring shaft 4. There are multiple supports 21, which are evenly distributed at the bottom of the outer barrel 1.

[0026] Working principle: concrete is poured between the outer block 2 and the inner block 3, the motor 19 is started, and the stirring shaft 4 rotates to drive the first filter screen 5, the second filter screen 6, the third filter screen 7, the fourth filter screen 8, the first side screen 9, the second side screen 10, the third side screen 11 and the fourth side screen 12 to rotate together, and the concrete can be fully spread during the rotation, and the first filter screen 5, the second filter screen 6, the third filter screen 7 and the fourth filter screen 8 have an angle with the vertical direction, so that the concrete can move to the edge under the action of its own gravity, so that the mixing is more sufficient, the filtering is more dispersed, and the efficiency is higher. The oversized particles are left on the four filter screens, the electric rod 14 is started, and the sealing plate 13 is opened. The large particles enter the impurity discharge trough 17 under the action of the rotation force and gravity, and the sand particles of specifications are obtained under the outer barrel 1, which can be discharged from the sand discharge pipe 20.

[0027] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A sand screening machine for concrete production, It is characterized in that include: An outer barrel (1), wherein an outer stopper (2) is fixedly connected to the top of the outer barrel (1), an inner stopper (3) is arranged inside the outer stopper (2), a stirring shaft (4) is fixedly connected to the bottom of the inner stopper (3), a first filter screen (5), a second filter screen (6), a third filter screen (7) and a fourth filter screen (8) are fixedly connected to the circumferential surface of the stirring shaft (4), the first filter screen (5), the second filter screen (6), the third filter screen (7) and the fourth filter screen (8) are sequentially distributed on the circumferential surface of the stirring shaft (4) in an upper and lower manner, a first side screen (9) is fixedly connected between the first filter screen (5) and the second filter screen (6), a second side screen (10) is fixedly connected between the second filter screen (6) and the third filter screen (7), a third side screen (11) is fixedly connected between the third filter screen (7) and the fourth filter screen (8), and a fourth side screen (12) is fixedly connected between the fourth filter screen (8) and the first filter screen (5); A sealing plate (13) is provided inside the outer barrel (1), the top of the sealing plate (13) is fixedly connected to an electric rod (14), the top fixed end of the electric rod (14) is fixedly connected to an inner ring (15), the circumferential surface of the inner ring (15) is fixedly connected to the inner wall of the outer barrel (1), a debris discharge port (16) is provided on the circumferential surface of the outer barrel (1), a debris discharge groove (17) is provided outside the debris discharge port (16), the debris discharge groove (17) is fixedly connected to the circumferential surface of the outer barrel (1), a sand discharge port (18) is provided on the circumferential surface of the outer barrel (1), a sand discharge pipe (20) is fixedly connected to the circumferential surface of the outer barrel (1), and a motor (19) and a support (21) are fixedly connected to the bottom of the outer barrel (1).

2. A sand screening machine for concrete production according to claim 1, It is characterized in that The sand discharge pipe (20) is connected to the sand discharge port (18), and the sand discharge pipe (20) is located below the fourth filter screen (8).

3. A sand screening machine for concrete production according to claim 1, It is characterized in that The output end of the motor (19) passes through the bottom of the outer barrel (1) and is fixedly connected to the bottom of the stirring shaft (4).

4. A sand screening machine for concrete production according to claim 1, It is characterized in that The first filter screen (5), the second filter screen (6), the third filter screen (7) and the fourth filter screen (8) are all fan-shaped, and the outer sides thereof are downwardly angled at 75 degrees with the vertical direction.

5. A sand screening machine for concrete production according to claim 1, It is characterized in that The sealing plate (13), the impurity discharge port (16) and the impurity discharge groove (17) are all spiral-shaped, and the impurity discharge port (16) is located outside the sealing plate (13), and the impurity discharge groove (17) is located outside the impurity discharge port (16). The sealing plate (13) is a steel plate with a thickness of 5 mm.

6. A sand screening machine for concrete production according to claim 1, It is characterized in that The number of the pillars (21) is multiple and evenly distributed at the bottom of the outer barrel (1).

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