Cement bagging machine

Abstract

The invention relates to the technical field of cement packaging, in particular to a cement bagging machine which is characterized in that the side wall is of a bent structure, so that the opening of the side wall of a rotor bin is improved, and meanwhile, the pressure applying capacity of the side wall is guaranteed; the baffle is mainly used for preventing particles between rotors from entering the small stock bin from the rotor bin due to centrifugal force between the rotor bin and the small stock bin, so that the effective particle amount between the rotors is increased, the particle amount between the discharging pipe and the rotor bin is increased, and under the condition of the same discharging frequency, the higher discharging amount is obtained, namely the discharging speed is increased. The rotor bin is obliquely arranged, so that particles can directly reach the central area of the rotor impeller, and effective discharging is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of cement packaging, in particular to a cement bagging machine. Background Art

[0002] At present, the discharge device in the cement bagging machine generally adopts an impeller type discharge device because the ash discharge capacity of the impeller type discharge device is significantly higher than that of the spiral type discharge device. In practical applications, the structure of the rotor bin has a greater influence on the discharge capacity. For example, the existing patent with application number 96200560.6 and the name of the impeller type discharge device of the cement bagging machine has an ash chamber lower side wall arranged in an inclined shape with an inclination angle α of 10 degrees. The inclined arrangement can expand the opening of the rotor bin side wall, which is conducive to the entry of particles into the rotor bin, thereby increasing the amount of particles between the rotors. However, the increased opening of the rotor bin side wall means that the side wall pressure capacity required for providing particles is weakened, and the lateral conveying capacity of cement particles is weakened. Under the action of centrifugal force, the effective amount of particles between the rotor blades is reduced, which reduces the discharge speed. Therefore, how to ensure the side wall pressure capacity while increasing the opening of the rotor bin side wall has become a research direction for increasing the discharge capacity. Summary of the invention

[0003] In view of the deficiencies in the prior art, an object of the present invention is to provide a cement bagging machine.

[0004] The technical solution adopted by the present invention to solve its technical problem is: A cement bagging machine comprises a main frame, a feeding bin is arranged on the main frame, a rotor bin is connected to the bottom of the feeding bin, a rotor impeller is arranged in the rotor bin, a main shaft of the rotor impeller passes through the left side wall of the rotor bin and a transmission mechanism is connected to the rotor impeller, the right side wall of the rotor bin is a bent structure, and the inclination angle of the upper part of the right side wall is greater than the inclination angle of the lower part of the right side wall.

[0005] Preferably, a further technical solution of the present invention is: Preferably, the right side wall of the rotor bin has a two-section bending structure.

[0006] Preferably, the upper portion of the right side wall of the rotor bin is an oblique straight plate structure, and the lower portion is a concave arc plate structure.

[0007] Preferably, a baffle is provided inside the rotor bin above the rotor impeller.

[0008] Preferably, the baffle is in a right-angle arc shape.

[0009] Preferably, the baffle curvature is adapted to the outer peripheral contour of the rotor impeller.

[0010] Preferably, the baffle is located at the middle right position of the rotor bin.

[0011] Preferably, the rotor bin is inclined at a predetermined angle relative to the feed bin.

[0012] The present invention adopting the above technical solution, compared with the prior art, its prominent features are: The side wall is arranged as a bent structure, which helps to increase the opening of the side wall of the rotor bin while ensuring the pressure-bearing capacity of the side wall; the main purpose of the baffle is to prevent the particles between the rotors from entering the small bin from the rotor bin due to centrifugal force between the rotor bin and the small bin, thereby increasing the effective amount of particles between the rotors, and ultimately increasing the amount of particles in the discharge pipe and the rotor bin. Under the condition of the same number of discharge times, a higher discharge amount is obtained, and the discharge speed is increased; the inclined setting of the rotor bin helps the particles in the small bin to directly reach the central area of the rotor impeller, realizing effective discharge. Description of the Drawings

[0013] Figure 1 is the structural schematic diagram of the cement bagging machine in the embodiment of the present invention Figure I ; Figure 2 is the structural schematic diagram of the cement bagging machine in the embodiment of the present invention Figure II ; Figure 3 is the schematic diagram of the model assembly structure of the rotor bin part in the embodiment of the present invention; Figure 4 is the three-dimensional structural schematic diagram of the rotor bin in the embodiment of the present invention; Figure 5 is the front view structural schematic diagram of the rotor bin in the embodiment of the present invention; Figure 6 is the comparison curve graph of the discharge amount under the simulation of the presence or absence of a right-angled arc baffle in the embodiment of the present invention; Figure 7 is the inclined setting structural schematic diagram of the rotor bin in the embodiment of the present invention; Figure 8 is the comparison curve graph of the discharge speed with or without the inclined setting of the rotor bin in the embodiment of the present invention; Figure 9 is the comparison curve graph of the amount of particles between the rotors with or without the inclined setting of the rotor bin in the embodiment of the present invention.

[0014] Description of the reference numerals: 1, main frame; 2, feed bin; 3, rotor bin; 4, rotor impeller; 5, transmission mechanism; 6, discharge pipe interface; 7, inclined straight plate; 8, arc plate; 9, baffle; 10, small bin. Detailed Embodiments

[0015] The present invention will be further described below in conjunction with specific embodiments. The purpose is only to better understand the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0016] Such as Figures 1 to 3As shown in the figure, this embodiment provides a cement bagging machine, which includes a main frame 1. An inlet hopper 2 is arranged on the main frame 1. The bottom of the inlet hopper 2 is connected to a rotor bin 3. A rotor impeller 4 is arranged in the rotor bin 3. The main shaft of the rotor impeller 4 passes through the left side wall of the rotor bin 3, and a transmission mechanism 5 is connected to the rotor impeller 4. The right side wall of the rotor bin 3 is in a bent structure, and the inclination angle of the upper part of the right side wall is greater than that of the lower part of the right side wall.

[0017] During implementation, the inclined setting of the right side wall has an important impact on the pressure and lateral transportation of cement particles entering the rotor bin 3. While the cement particles move in an arc in the rotor bin 3, they are subjected to a lateral thrust from the side wall, and the amount of cement particles between the blades in the rotor impeller 4 increases, so as to achieve a higher volume fraction and a higher amount of particles at the interface 6 of the discharge pipe. However, when the overall inclined width of the right side wall is too large, the particles cannot obtain better momentum in the direction of blade movement and cannot be effectively stacked in the area of the discharge pipe orifice, so the discharge amount cannot be guaranteed. Based on this, in the present invention, the right side wall of the rotor bin 3 adopts a bent structure to increase the opening of the side wall of the rotor bin while ensuring the pressure application ability of the side wall.

[0018] Specifically, the right side wall of the rotor bin 3 can be in a two-stage bent structure.

[0019] The upper part of the right side wall of the rotor bin 3 is in the structure of an inclined straight plate 7, and the lower part is in the structure of an inward concave arc plate 8.

[0020] Refer to Table 1, which is a comparison table of the discharge amounts of the arc plate side wall and the existing inclined side wall obtained by simulation of the present invention. It can be seen that through simulation, the discharge situation of the arc plate side wall of the present invention in 1 s is compared with the discharge situation of the existing inclined side wall in 1.3 s. The discharge speeds of the arc plate side wall of this application at 0.5 s and 1 s are both higher than those of the existing inclined side wall.

[0021] Table 1 Comparison of discharge amounts Sidewall type Outlet pipe Calculation time Discharge rate at 0.5 s Discharge rate at 1 s Inclined sidewall Straight pipe 1.3s 6.17 KG / s 5.06 KG / s Arc-shaped sidewall Straight pipe 1s 7.91 KG / s 7.85 KG / s During implementation, refer to Figure 4 and Figure 5 , a baffle 9 can also be arranged above the rotor impeller 4 inside the rotor bin 3; the baffle 9 is fixed in a way that straddles between the front and rear side walls of the rotor bin 3.

[0022] The baffle 9 is in a right-angled arc shape; the radian of the baffle 9 is adapted to the outer peripheral contour of the rotor impeller 4.

[0023] Specifically, the baffle 9 can be made by bending an angle steel to a predetermined radian. When specifically fixing, refer to Figure 3 One right-angled surface of the baffle 9 can be coplanar with the outer surface of the rotor impeller 4, and the other right-angled surface can be arranged to surround the outer periphery of the rotor impeller 4 at a predetermined distance position.

[0024] Refer to Figure 6This is a comparison curve graph of the discharge volume obtained by simulating the case of the baffle 9 with and without a right-angled arc. It can be seen that setting the baffle 9 with a right-angled arc helps to increase the discharge volume, can more effectively achieve the task goal, and increase the effective amount of particles between the rotors. This is because the main purpose of setting the baffle 9 is to inhibit the particles between the rotors from entering the small bin 10 ( Figure 5 the red-marked area in it) from the rotor bin 3 into the small bin 10 due to the centrifugal force, thereby increasing the effective amount of particles between the rotors, increasing the amount of particles in the discharge pipe and the rotor bin 3, and obtaining a higher discharge volume and a higher discharge speed under the condition of the same number of discharge times.

[0025] During implementation, refer to Figure 7 , the rotor bin 3 is inclined at a predetermined angle relative to the feed bin 2. Specifically, when inclining, it will be skewed in the way that the side of the small bin 10 is upward and the opposite side of the small bin 10 is downward. Refer to Figure 8 and Figure 9 the curve graphs given by the simulation. The discharge speed and the amount of particles between the rotors of the inclined rotor bin structure are both stronger than those of the straight bin structure. The inclined rotor bin structure is more conducive to increasing the amount of particles between the rotors, and further increasing the discharge speed; the cement in the small bin 10 is more inclined to directly reach the center area of the rotor and reach the outer edge of the rotor to achieve effective discharge.

[0026] The above is only a preferred and feasible embodiment of the present invention, and does not limit the scope of rights of the present invention accordingly. Any equivalent changes made by using the content of the specification and drawings of the present invention are included in the scope of rights of the present invention.

Claims

1. A cement bagging machine, comprising a main frame, a feeding bin is arranged on the main frame, a rotor bin is connected to the bottom of the feeding bin, a rotor impeller is arranged in the rotor bin, a main shaft of the rotor impeller passes through the left side wall of the rotor bin and a transmission mechanism is connected to the rotor impeller, characterized in that: The right side wall of the rotor bin is in a bent structure, and the inclination angle of the upper part of the right side wall is greater than the inclination angle of the lower part of the right side wall.

2. The cement bagging machine according to claim 1, characterized in that: The right side wall of the rotor bin is a two-section bent structure.

3. The cement bagging machine according to claim 1, characterized in that: The upper part of the right side wall of the rotor bin is an oblique straight plate structure, and the lower part is a concave arc plate structure.

4. The cement bagging machine according to claim 1, characterized in that: A baffle is arranged inside the rotor bin above the rotor impeller.

5. The cement bagging machine according to claim 4, characterized in that: The baffle is in a right-angle arc shape.

6. The cement bagging machine according to claim 5, characterized in that: The baffle curvature is adapted to the outer peripheral contour of the rotor impeller.

7. The cement bagging machine according to claim 4, characterized in that: The baffle is located in the middle right of the rotor compartment.

8. The cement bagging machine according to claim 1, characterized in that: The rotor bin is inclined at a predetermined angle relative to the feed bin.

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