Double-impeller structure for cement bagging machine

Abstract

The utility model relates to the technical field of cement packaging, in particular to a double-impeller structure for a cement bagging machine, which comprises a main frame, a feeding bin arranged on the main frame, a rotor bin connected with 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, and inner-ring blades and outer-ring blades are concentrically arranged on the mounting plate. According to the technical scheme, after the inner ring blades are added, the inner ring blades can guide cement particles to enter the rotor bin area, more cement particles reach the conveying blade area through the centrifugal effect of the inner ring blades, the effective increase of the particle amount between rotors is achieved, and therefore the discharging amount is increased.

Description

Technical Field

[0001] This utility model relates to the field of cement packaging technology, specifically to a double impeller structure for cement bagging machines. 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 double impeller structure for a cement bagging machine.

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

[0005] A double impeller structure for a cement bagging machine includes a main frame, a feed hopper on the main frame, a rotor hopper connected to the bottom of the feed hopper, a rotor impeller inside the rotor hopper, and a rotor impeller including 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, and inner and outer blades are concentrically arranged on the mounting plate.

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

[0007] After adding the inner ring blades, the inner ring blades can guide cement particles into the rotor chamber area and, through the centrifugal effect of the inner ring blades, allow more cement particles to reach the conveying blade area, thereby increasing the effective amount of particles between rotors and thus increasing the output.

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

[0009] Preferably, the inner and outer blades are arranged in opposite directions.

[0010] Preferably, the mounting plate has an annular structure, and both the inner and outer blades have rectangular structure.

[0011] Preferably, the end of the outer ring blade extends outward to the outside of the mounting plate by a predetermined length, and the inner end of the inner ring blade extends inward to the inside of the mounting plate by a predetermined length.

[0012] Preferably, the bottom edge of the outer blade, located outside the mounting plate, is provided with a widened structure.

[0013] Preferably, the dimensions of the widened structure are greater than the thickness of the mounting plate.

[0014] Preferably, the bottom edge of the inner blade, located inside the mounting plate, is provided with a width-reducing groove.

[0015] Preferably, a turbulence groove is provided at the connection position between the bottom edge of the inner blade and the width reduction groove.

[0016] Preferably, the turbulence channel has an arc-shaped channel structure that is compatible with the mounting plate.

[0017] Preferably, the top edge of the inner blade has a twisted structure relative to the bottom edge. 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. Figure 1 ;

[0019] Figure 2 This is a three-dimensional structural diagram of the cement bagging machine in this embodiment of the utility model. Figure 2 ;

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

[0021] Figure 4 This is a side view of the double impeller structure in an embodiment of this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the double impeller in an embodiment of this utility model. Figure 2 ;

[0023] Figure 6 This is a three-dimensional structural diagram of the double impeller in an embodiment of this utility model. Figure 3 ;

[0024] Figure 7 This is a three-dimensional structural diagram of the double impeller in an embodiment of this utility model. Figure 4 ;

[0025] Figure 8 This is a model diagram of the simulated material discharge situation provided by the embodiment of this utility model. a represents a model with inner ring blades, and b represents a model without inner ring blades.

[0026] 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. Inner ring blades; 8. Outer ring blades; 9. Widened structure; 10. Widened slot; 11. Turbulence channel. Detailed Implementation

[0027] 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.

[0028] like Figures 1 to 7 As shown in the figure, this embodiment provides a double impeller structure 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, and the impeller 4 includes a mounting plate 6 coaxially fixed with the main shaft, and inner ring blades 7 and outer ring blades 8 are concentrically arranged on the mounting plate 6.

[0029] In practice, see Table 1, which compares the discharge rates obtained after simulation with and without inner ring blades. Simulation results show that at 0.5s and 1s, the discharge rate with inner ring blades is higher than that without inner ring blades; simultaneously Figure 8 The diagram shows the material distribution during the simulation process (blue areas represent areas without material, and green areas represent areas with material). It can be seen that after adding the inner blades, the inner blades can guide cement particles into the rotor chamber area and, through the centrifugal effect of the inner blades, allow more cement particles to reach the conveying blade area, thereby increasing the effective particle quantity between rotors and thus improving the output.

[0030] Table 1 Comparison of Material Discharge Status

[0031] 0.5s 1s With inner blades 8.93KG / s 9.18KG / s No inner ring blades 8.12KG / s 8.11KG / s

[0032] In practice, the inner ring blades 7 and the outer ring blades 8 are arranged in opposite directions; for example... Figure 3 As shown, the outer ring blade 8 is radially inclined clockwise relative to the mounting plate 6, and the inner ring blade 7 is radially inclined counterclockwise.

[0033] Mounting plate 6 has a ring-shaped structure, while inner blade 7 and outer blade 8 both have rectangular plate structures.

[0034] The end of the outer ring blade 8 extends outward to the outside of the mounting plate 6 by a predetermined length, and the inner end of the inner ring blade 7 extends inward to the inside of the mounting plate 6 by a predetermined length.

[0035] The bottom edge of the outer ring blade 8, located outside the mounting plate 6, is provided with a widened structure 9.

[0036] The dimensions of the widened structure 9 are greater than the thickness of the mounting plate 6.

[0037] The bottom edge of the inner blade 7, located inside the mounting plate 6, is provided with a widening groove 10.

[0038] A turbulence groove 11 is provided at the connection position between the bottom edge of the inner blade 7 and the width reduction groove 10.

[0039] The turbulence channel 11 has an arc-shaped channel structure that is compatible with the mounting plate.

[0040] The top edge of the inner blade 7 has a twisted structure relative to the bottom edge.

[0041] 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 double-impeller structure 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 that is fixed coaxially with the main shaft, and inner and outer blades are concentrically arranged on the mounting plate.

2. The double impeller structure for a cement bagging machine according to claim 1, characterized in that, The inner and outer blades are arranged in opposite directions.

3. The double impeller structure for a cement bagging machine according to claim 1, characterized by, The mounting plate has a ring-shaped structure, while the inner and outer blades both have rectangular plate structures.

4. The double impeller structure for a cement bagging machine according to claim 3, characterized by The outer blades extend a predetermined length outward from the mounting plate, and the inner blades extend a predetermined length inward from the mounting plate.

5. The twin-impeller structure for a cement bagging machine according to claim 4, characterized by The bottom edge of the outer blades, located outside the mounting plate, has a widened structure.

6. The twin-impeller structure for a cement bagging machine according to claim 5, characterized by The dimensions of the widened structure are greater than the thickness of the mounting plate.

7. The double impeller structure for a cement bagging machine according to claim 4, wherein The bottom edge of the inner blade, located inside the mounting plate, is provided with a width-reducing groove.

8. The twin-impeller structure for a cement bagging machine according to claim 7, characterized by A turbulence groove is provided at the junction between the bottom edge of the inner blade and the width reduction slot.

9. The twin-impeller structure for a cement bagging machine according to claim 8, characterized by The turbulence channel has an arc-shaped groove structure that fits the mounting plate.

10. The twin-impeller structure for a cement bagging machine according to claim 1, characterized by The top edge of the inner blades has a twisted structure relative to the bottom edge.

Images