Feeding device for grinding aid cement grinding

Abstract

The utility model relates to the technical field of cement processing, in particular to a feeding device for cement grinding of a grinding aid. According to the technical scheme, the device comprises a feeding barrel, a bag opening mechanism and a control box, a feeding port is formed in the middle of the top of the feeding barrel, a feeding hopper is installed at the top of the feeding port, a U-shaped frame is installed at the position, under the feeding port, of the top end in the feeding barrel, the bag opening mechanism is arranged at the position, under the U-shaped frame, in the feeding barrel, and a discharging port is formed in the middle of the bottom of the feeding barrel; the lower end of the feeding pipe is fixed to the bottom of the feeding barrel through a fixing sleeve, the bottom of the upper end of the feeding pipe is supported on the ground through a supporting rod, a feeding motor is installed at the left end of the feeding pipe, a conveying stirring wheel is rotationally installed in the feeding pipe, and an output shaft of the feeding motor is connected with a rotating shaft of the conveying stirring wheel through a flange. Bagged grinding aids are integrally added into the feeding barrel, the bag is automatically opened through the bag opening mechanism, a large amount of dust is prevented from polluting the environment, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cement processing, in particular to a feeding device for grinding aid cement grinding. Background Art

[0002] A cement grinding aid is an additive that needs to be used in the cement production process. Adding a grinding aid to the cement can increase the wear resistance of the cement, significantly improve the strength of the cement at each age period, and improve the fluidity of the cement. When the cement is ground, a feeding device is used to continuously add the grinding aid into the grinding mechanism.

[0003] When the traditional feeding device is used, it is necessary for workers to first open the bag mouth of the bagged additive. During the process of adding the opened bagged grinding aid into the feeding bucket, it is easy to spill out, generating a large amount of dust and polluting the surrounding environment, with poor practicability. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a feeding device for grinding aid cement grinding, which has the advantages of integrally adding the bagged grinding aid into the feeding bucket and automatically opening the bag through the bag opening mechanism, avoiding dust pollution to the environment and improving the practicability of the device, and solving the problems mentioned in the background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A feeding device for grinding aid cement grinding, including a feeding bucket, a bag opening mechanism and a control box. There is a feed inlet in the middle of the top of the feeding bucket, and a feed hopper is installed at the top of the feed inlet. At the top end inside the feeding bucket, a U-shaped frame is installed directly below the feed inlet. A rectangular notch is opened in the middle of the crossbeam of the U-shaped frame. A bag opening mechanism is arranged below the U-shaped frame inside the feeding bucket. There is a discharge port in the middle of the bottom of the feeding bucket, and a feeding pipe is installed at the discharge port. The lower end of the feeding pipe is fixed to the bottom of the feeding bucket through a fixed sleeve, and the upper end bottom is supported on the ground through a support rod. A feeding motor is installed at the left end of the feeding pipe, and a conveying stirring wheel is rotatably installed inside. The output shaft of the feeding motor is connected to the rotating shaft of the conveying stirring wheel through a flange. A discharge nozzle is installed at the bottom of the right end of the feeding pipe.

[0006] Preferably, four support legs are annularly and arrayedly installed at the four corners of the bottom end of the feeding bucket. By setting the four support legs, stable support for the feeding bucket is achieved.

[0007] Preferably, a dust-proof leather is installed at the feed inlet of the feed hopper, and a notch is opened in the middle of the dust-proof leather. By setting the dust-proof leather, the function of dust prevention is achieved when the grinding aid is added to the feeding bucket.

[0008] Preferably, the bag-opening mechanism is composed of two electric telescopic rods, two sleeve columns, two sliding columns, two knife seats and two cutting knives. The two sleeve columns are inserted into the inside of the feeding barrel and welded thereto. One end of the outer sides of the two sleeve columns is provided with electric telescopic rods, and one end of the inner sides thereof is inserted and installed with sliding columns. The extending ends of the two electric telescopic rods are fixed to the two sliding columns. The other ends of the two sliding columns are installed with knife seats, and the two cutting knives pass through the rectangular notch and are installed on the knife seats through screws. By providing the opening mechanism, the bag of grinding aid can be automatically cut open.

[0009] Preferably, two rectangular iron blocks are symmetrically installed on the output shaft of the discharging end of the conveying stirring wheel. By providing the two rectangular iron blocks, the materials can be quickly pushed towards the discharging nozzle.

[0010] Preferably, the control box is installed at the outer side position of the left support leg, and the control box is electrically connected to the feeding motor and the electric telescopic rod respectively. By providing the control box, the start and stop of the feeding motor and the electric telescopic rod can be conveniently controlled integrally.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] When adding the grinding aid in the present utility model, the whole bag of grinding aid is added from the feed hopper. When the bottom of the bagged grinding aid contacts the U-shaped frame, it will be inserted by the two cutting knives under the action of gravity. The two electric telescopic rods are started through the control box. The two electric telescopic rods work to drive the two sliding columns to retract into the sleeve columns, and the two cutting knives move accordingly to cut open the bag mouth, so as to realize the overall addition of the bagged grinding aid into the feeding barrel and automatically open the bag through the bag-opening mechanism, avoiding dust pollution to the environment and improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is an external view of the present utility model;

[0015] Figure 3 is a schematic structural diagram of the inside of the feeding pipe of the present utility model.

[0016] In the figure: 1, fixed sleeve; 2, feeding pipe; 3, discharging port; 4, feeding motor; 5, feeding barrel; 6, support leg; 7, control box; 8, electric telescopic rod; 9, sleeve column; 10, feed hopper; 11, dust-proof leather; 12, U-shaped frame; 13, sliding column; 14, rectangular notch; 15, knife seat; 16, cutting knife; 17, support rod; 18, discharging nozzle; 19, conveying stirring wheel; 20, rectangular iron block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0018] Please refer to Figures 1 to 3 , the present utility model provides a technical solution for a feeding device for grinding aid cement grinding: a feeding device for grinding aid cement grinding, including a feeding bucket 5, a bag-opening mechanism and a control box 7. Four support legs 6 are annularly arranged at the four corners of the bottom end of the feeding bucket 5. An inlet is provided in the middle of the top of the feeding bucket 5, and a feeding hopper 10 is installed at the top of the inlet. A dust-proof leather 11 is installed at the inlet of the feeding hopper 10, and a notch is opened in the middle of the dust-proof leather 11. A U-shaped frame 12 is installed directly below the inlet at the inner top end of the feeding bucket 5. A rectangular notch 14 is opened in the middle of the cross beam of the U-shaped frame 12. A bag-opening mechanism is provided below the U-shaped frame 12 inside the feeding bucket 5. The bag-opening mechanism is composed of two electric telescopic rods 8, two sleeve columns 9, two sliding columns 13, two knife seats 15 and two cutting knives 16. The two sleeve columns 9 are inserted into the inside of the feeding bucket 5 and welded thereto. One end of the outer side of the two sleeve columns 9 is installed with an electric telescopic rod 8, and one end of the inner side is inserted and installed with a sliding column 13. The extending ends of the two electric telescopic rods 8 are fixed on the two sliding columns 13. The other ends of the two sliding columns 13 are installed with knife seats 15. The two cutting knives 16 pass through the rectangular notch 14 and are installed on the knife seats 15 through screws. When the whole bag of grinding aid is added from the feeding hopper 10, when the bottom of the bagged grinding aid touches the U-shaped frame 12, it will be inserted by the two cutting knives 16 under the action of gravity. By starting the two electric telescopic rods 8 through the control box 7, the two electric telescopic rods 8 work to drive the two sliding columns 13 to retract into the sleeve columns 9, and the two cutting knives 16 move accordingly to cut open the bag mouth.

[0019] A discharge port 3 is provided in the middle of the bottom of the feeding bucket 5. A feeding pipe 2 is installed at the discharge port 3. The lower end of the feeding pipe 2 is fixed to the bottom of the feeding bucket 5 through a fixing sleeve 1, and the upper end bottom is supported on the ground through a support rod 17. A feeding motor 4 is installed at the left end of the feeding pipe 2, and a conveying stirring wheel 19 is rotatably installed inside. The output shaft of the feeding motor 4 is connected to the rotating shaft of the conveying stirring wheel 19 through a flange. Two rectangular iron blocks 20 are symmetrically installed on the output shaft of the discharging end of the conveying stirring wheel 19. A discharge nozzle 18 is installed at the bottom end of the right end of the feeding pipe 2. The grinding aid will fall into the inside of the feeding bucket 5 and enter the feeding pipe 2 along the discharge port 3. The feeding motor 4 works to drive the conveying stirring wheel 19 to rotate to convey the grinding aid. The two rectangular iron blocks 20 start to rotate to drive the grinding aid towards the discharge nozzle 18, and finally enter the inside of the grinding mechanism from the discharge nozzle 18 to be ground together with the cement clinker. The control box 7 is installed at the outer position of the left support leg 6, and the control box 7 is electrically connected to the feeding motor 4 and the electric telescopic rod 8 respectively.

[0020] All motors of the present utility model are designed by selecting small servo motors of model 14HS2408. This model of motor is only for reference by those skilled in the art. Those skilled in the art can select motors with the same parameters and functions for installation, debugging and use according to actual production needs, and the present utility model will not elaborate on this.

[0021] When the present utility model is in use, first, the feeding motor 4 is started through the control box 7, and then the whole bag of grinding aid is added from the feed hopper 10. When the bottom of the bagged grinding aid contacts the U-shaped frame 12, it will be inserted by two cutting knives 16 under the action of gravity. The two electric telescopic rods 8 are started through the control box 7. When the two electric telescopic rods 8 work, they drive the two sliding columns 13 to retract into the sleeve columns 9, and the two cutting knives 16 move accordingly to cut open the bag mouth. The grinding aid will fall into the inside of the feeding bucket 5 and then along the feeding port 3 into the feeding pipe 2 inside the machine. The feeding motor 4 works to drive the conveying agitator wheel 19 to rotate to convey the grinding aid. The two rectangular iron blocks 20 start to rotate to drive the grinding aid towards the discharge nozzle 18, and finally enter the inside of the grinding mechanism from the discharge nozzle 18 to be ground together with the cement clinker.

[0022] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A feeding device for grinding cement with grinding aid, comprising a feeding bucket (5), a bag opening mechanism and a control box (7), characterized in that: A feeding port is provided in the middle of the top of the feeding barrel (5), and a feeding hopper (10) is installed at the top of the feeding port. A U-shaped frame (12) is installed at the top of the feeding barrel (5) just below the feeding port. A rectangular notch (14) is provided in the middle of the crossbeam of the U-shaped frame (12). A bag opening mechanism is provided inside the feeding barrel (5) below the U-shaped frame (12). A discharge port (3) is provided in the middle of the bottom of the feeding barrel (5). A feeding pipe (2) is installed at the discharge port (3). The lower end of the feeding pipe (2) is fixed to the bottom of the feeding barrel (5) through a fixing sleeve (1), and the bottom of the upper end is supported on the ground through a supporting rod (17). A feeding motor (4) is installed at the left end of the feeding pipe (2), and a conveying impeller (19) is rotatably installed inside. The output shaft of the feeding motor (4) is connected to the rotating shaft of the conveying impeller (19) through a flange. A discharge nozzle (18) is installed at the bottom of the right end of the feeding pipe (2).

2. A feeding device for grinding aid cement grinding according to claim 1, characterized in that: Four supporting legs (6) are installed in a circular array at the four corners of the bottom end of the feeding bucket (5).

3. A feeding device for grinding aid cement grinding according to claim 1, characterized in that: A dustproof cover (11) is installed at the feeding port of the feeding hopper (10), and a notch is provided in the middle of the dustproof cover (11).

4. A feeding device for grinding aid cement grinding according to claim 1, characterized in that: The bag opening mechanism is composed of two electric telescopic rods (8), two sleeve columns (9), two sliding columns (13), two knife seats (15) and two cutting knives (16). The two sleeve columns (9) are inserted into the feeding bucket (5) and welded thereon. The electric telescopic rod (8) is installed at one end of the outer side of the two sleeve columns (9), and the sliding column (13) is inserted and installed at one end of the inner side. The extended ends of the two electric telescopic rods (8) are fixed on the two sliding columns (13). The knife seats (15) are installed at the other ends of the two sliding columns (13). The two cutting knives (16) pass through the rectangular notch (14) and are installed on the knife seat (15) by screws.

5. A feeding device for grinding aid cement grinding according to claim 1, characterized in that: Two rectangular iron blocks (20) are symmetrically mounted on the output shaft at the discharge end of the conveying stirring wheel (19).

6. A feeding device for grinding aid cement grinding according to claim 1, characterized in that: The control box (7) is installed at the outer side of the left supporting leg (6), and the control box (7) is electrically connected to the feeding motor (4) and the electric telescopic rod (8) respectively.

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