Sawtooth-shaped impeller for cement bagging machine

Abstract

The utility model relates to the technical field of cement packaging, in particular to a zigzag impeller for a cement bagging machine, which comprises a main frame, a feeding bin arranged on the main frame, a rotor bin connected to the bottom of the feeding bin, a rotor impeller arranged in the rotor bin and comprising a main shaft and an impeller coaxially fixed with the main shaft, wherein one end of the main shaft penetrates out of the side wall of the rotor bin and is connected with a transmission mechanism, the impeller comprises a mounting plate coaxially fixed with the main shaft, blades are arranged on the mounting plate at intervals, and notches are formed in the tail ends of the blades. According to the technical scheme, the notches are formed in the tail ends of the blades, so that the friction pressure of the discharging pipe is reduced, the friction force between particles and the friction force between the particles and the wall surface are reduced, the resistance of the discharging pipe is reduced, and the discharging amount is increased.

Description

Technical Field

[0001] This utility model relates to the field of cement packaging technology, specifically a serrated impeller for a cement bagging machine. Background Technology

[0002] Currently, in cement bagging machines, impeller-type discharge devices are commonly used because their ash discharge capacity is significantly higher than that of spiral discharge devices. In practical applications, the structure of the rotor impeller is an important factor affecting the ash discharge capacity of the impeller-type discharge device. Improving the discharge capacity by optimizing the rotor impeller structure has become one of the main research directions. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a serrated impeller for a cement bagging machine.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A sawtooth impeller for a cement bagging machine includes a main frame with a feed hopper on the main frame. A rotor hopper is connected to the bottom of the feed hopper, and a rotor impeller is installed inside the rotor hopper. The rotor impeller includes a main shaft and an impeller fixed coaxially with the main shaft. One end of the main shaft extends through the side wall of the rotor hopper and is connected to a transmission mechanism. The impeller includes a mounting plate fixed coaxially with the main shaft. Blades are spaced apart on the mounting plate, and slots are opened at the ends of the blades.

[0006] Compared with the prior art, the outstanding features of this utility model, which adopts the above technical solution, are:

[0007] The slots at the blade tips help reduce the particle pressure in the triangular area formed by the blades and the rotor chamber sidewall, creating a small turbulence and increasing the looseness of the particles. Some particles missed by the serrated structure will be replenished between the blades when the following blades arrive, reducing the volume fraction of the triangular area. This helps reduce the frictional pressure of the discharge pipe, reduce the friction between particles and between particles and the wall, thereby reducing the resistance of the discharge pipe and increasing the discharge rate.

[0008] As a preferred embodiment, a further technical solution of this utility model is:

[0009] Preferably, the slots on each blade are evenly spaced.

[0010] Preferably, the slot is rectangular.

[0011] Preferably, the slots on each blade are in the same position.

[0012] Preferably, the blade is shaped like a rectangular plate.

[0013] Preferably, the mounting plate is in the form of a ring.

[0014] Preferably, the blades are vertically fixed to the mounting plate, and the blade orientation is at a predetermined angle to the radial direction of the mounting plate.

[0015] Preferably, the tip of the blade extends a predetermined length outward from the mounting plate.

[0016] Preferably, the bottom edge of the blade, located on the outside of the mounting plate, is provided with a widened structure.

[0017] Preferably, the dimensions of the widened structure are greater than the thickness of the mounting plate. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the cement bagging machine in this embodiment of the utility model;

[0019] Figure 2 This is a side view of the cement bagging machine in this embodiment of the present invention.

[0020] Figure 3 This is a three-dimensional structural diagram of the impeller in an embodiment of this utility model. Figure 1 ;

[0021] Figure 4 This is a three-dimensional structural diagram of the impeller in an embodiment of this utility model. Figure 2 ;

[0022] Figure 5 This is a schematic diagram of the main view of the impeller in an embodiment of this utility model;

[0023] Figure 6 This is a side view of the impeller in an embodiment of the present invention.

[0024] Explanation of reference numerals in the attached drawings: 1. Main frame; 2. Feed hopper; 3. Rotor hopper; 4. Impeller; 5. Transmission mechanism; 6. Mounting plate; 7. Blade; 8. Groove; 9. Widened structure. Detailed Implementation

[0025] The present invention will be further described below with reference to specific embodiments. The purpose of this description is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0026] like Figures 1 to 6As shown in the figure, this embodiment provides a sawtooth impeller for a cement bagging machine, including a main frame 1, a feed bin 2 on the main frame 1, a rotor bin 3 connected to the bottom of the feed bin 2, a rotor impeller inside the rotor bin 3, the rotor impeller including a main shaft and an impeller 4 coaxially fixed with the main shaft, wherein one end of the main shaft protrudes through the side wall of the rotor bin 3 and is connected to a transmission mechanism 5, the impeller 4 including a mounting plate 6 coaxially fixed with the main shaft, blades 7 are spaced apart on the mounting plate 6, and the end of the blades 7 is provided with a slot 8.

[0027] In practice, each blade 7 is provided with multiple slots 8, and the slots 8 are equally spaced.

[0028] The slot 8 is rectangular.

[0029] The slots 8 on each blade 7 are in the same position.

[0030] The blade 7 is shaped like a rectangular plate.

[0031] Mounting plate 6 is a ring-shaped plate.

[0032] The blade 7 is vertically fixed to the mounting plate 6, and the blade 7 is set at a predetermined angle to the radial direction of the mounting plate 6. Simulation results show that when the blade 7 tilt angle is 66°, the discharge rate increases significantly with the increase of the rotor impeller speed; that is, the number of times the blade 7 discharges material per unit time increases, and the discharge rate per unit time also increases.

[0033] The end of blade 7 extends a predetermined length outward from the mounting plate 6.

[0034] The bottom edge of the blade 7, located outside the mounting plate 6, is provided with a widened structure 8.

[0035] The widened dimension of the widened structure 8 is greater than the thickness of the mounting plate 6.

[0036] The solution provided by this utility model is that the slot 8 at the end of the blade 7 helps to reduce the particle pressure in the triangular area formed by the blade 7 and the side wall of the rotor chamber 3, forming a certain small turbulence, improving the looseness of the particles. Some particles missed by the serrated slot 8 in this application will be replenished between the blades 7 when the following blades 7 arrive, so that the volume fraction of the triangular area is reduced, which helps to reduce the friction pressure of the discharge pipe, reduce the friction between particles and between particles and the wall, thereby reducing the resistance of the discharge pipe and increasing the discharge rate.

[0037] The above description is merely a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.

Claims

1. A serrated impeller for a cement bagging machine, comprising a main frame, a feed hopper mounted on the main frame, a rotor hopper connected to the bottom of the feed hopper, a rotor impeller disposed within the rotor hopper, the rotor impeller comprising a main shaft and an impeller coaxially fixed to the main shaft, wherein one end of the main shaft extends through the side wall of the rotor hopper and is connected to a transmission mechanism, characterized in that, The impeller includes a mounting plate fixed coaxially with the main shaft, and blades are spaced apart on the mounting plate, with slots at the ends of the blades.

2. The serrated impeller for a cement bagging machine according to claim 1, characterized in that, The slots on each blade are evenly spaced.

3. The serrated impeller for a cement bagging machine according to claim 1, characterized by, The slot is rectangular.

4. The serrated impeller for a cement bagging machine according to claim 1, characterized by, The slots on each blade are in the same position.

5. The serrated impeller for a cement bagging machine according to claim 1, characterized by, The blade is shaped like a rectangular plate.

6. The serrated impeller for a cement bagging machine according to claim 5, characterized in that, The mounting plate is a ring-shaped plate.

7. The serrated impeller for a cement bagging machine according to claim 6, characterized in that, The blades are vertically fixed to the mounting plate, and the blade orientation is at a predetermined angle to the radial direction of the mounting plate.

8. The serrated impeller for a cement bagging machine of claim 6 wherein, The tip of the blade extends a predetermined length outward from the mounting plate.

9. The serrated impeller for a cement bagging machine according to claim 8, characterized in that, The bottom edge of the blade, located on the outside of the mounting plate, has a widened structure.

10. The serrated impeller for a cement bagging machine according to claim 9, characterized in that, The dimensions of the widened structure are greater than the thickness of the mounting plate.

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