Fly ash bin discharging mechanism of raw mill

By designing an outer and inner tank structure in the fly ash silo, combined with a vibration motor and spiral blades, the problems of adhesion and clogging in the fly ash silo are solved, enabling continuous and uniform feeding and precise control of fly ash, and reducing dust pollution and maintenance costs.

CN223920139UActive Publication Date: 2026-02-17JIANGXI JIZHOU SOUTH CEMENT CO LTD
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Patent Information

Application Number
CN202520020341.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-06
Publication Date
2026-02-17
Estimated Expiration
2035-01-06

AI Technical Summary

Technical Problem

Traditional fly ash silos and their feeding mechanisms suffer from adhesion and clogging problems during fly ash storage and feeding, resulting in uneven feeding, inability to achieve precise control, and dust spillage during feeding, which pollutes the working environment.

Method used

Design a fly ash silo for a raw material mill, comprising an outer tank and an inner tank. The inner tank is connected to the outer tank via a buffer. Vibration motors are installed on both sides of the inner tank, and a spiral blade in the middle is driven by a drive motor. An electric push rod at the bottom controls a cone block to adjust the discharge speed, preventing adhesion and blockage, and ensuring continuous and uniform material feeding.

Benefits of technology

It enables continuous and uniform feeding of fly ash, improves feeding accuracy and ease of operation, reduces dust pollution, and lowers maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of coal ash bins, in particular to a coal ash bin discharging mechanism of a raw mill. According to the technical scheme, the device comprises an outer tank body and an inner tank body, the inner tank body is arranged in the middle of the interior of the outer tank body, first motors are arranged on the two sides of the middle of the exterior of the inner tank body, a transverse plate is fixed to the middle of the interior of the inner tank body, the inner tank body is connected to the middle of the interior of the outer tank body through a buffer, and a second motor is fixed to the middle of the surface of the transverse plate; the output end of the second motor is connected with a shaft rod, and spiral blades are fixed to the surface of the shaft rod. The inner tank body is installed in the outer tank body through the buffer, the first motors capable of vibrating are installed on the two sides to prevent adhesion and blockage, the middle spiral blade is driven by the second motor to discharge coal ash, the blanking continuity and uniformity are ensured, the conical block driven by the electric push rod at the bottom end controls the blanking speed, the blanking precision and the operation convenience are improved, and the production efficiency is improved. And the overall design improves the working efficiency and the stability.
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Description

Technical Field

[0001] This utility model relates to the field of fly ash silo technology, specifically to a fly ash silo feeding mechanism for a raw material mill. Background Technology

[0002] Traditional fly ash silos and their feeding mechanisms face several problems during fly ash storage and feeding, primarily including fly ash adhesion and clogging on the silo walls and at the feeding port, affecting the continuity and uniformity of feeding. Commonly used feeding devices such as vibrating feeders and screw conveyors still struggle to avoid clogging and bridging when handling fly ash with high moisture content. Furthermore, the feeding speed and quantity control of traditional feeding mechanisms are not precise enough, often requiring manual adjustment and intervention, increasing operational difficulty and maintenance costs. Dust spillage during feeding and conveying also frequently pollutes the working environment, affecting the health of operators. Utility Model Content

[0003] The purpose of this utility model is to provide a fly ash silo feeding mechanism for a raw material mill to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a fly ash silo feeding mechanism for a raw material mill, comprising an outer tank and an inner tank, wherein the inner tank is disposed in the middle of the interior of the outer tank, and a first motor is disposed on both sides of the middle of the exterior of the inner tank, a horizontal plate is fixed in the middle of the interior of the inner tank, and the inner tank is connected to and installed in the middle of the interior of the outer tank via a buffer, a second motor is fixed in the middle of the surface of the horizontal plate, and a shaft is connected to the output end of the second motor, and a spiral blade is fixed on the surface of the shaft.

[0005] When using the fly ash silo feeding mechanism of a raw material mill according to this technical solution, the operator first needs to connect an external power supply to the device and control its operation via a controller. The operator holds the handle and applies force to rotate and open the top cover. After the top cover is opened, the operator pours the fly ash to be used into the feed hopper. The fly ash is then transported through the feed hopper to the inner tank. After a suitable amount is transported, the transport stops. When the operator needs to use the fly ash in the inner tank, the operator takes the container to the bottom of the dust bag and inserts one end of the dust bag into the container. At this time, the operator controls the cone block to move using an electric actuator. The position of the inner tank at the bottom is used to adjust the discharge speed of the coal ash inside the tank. At this time, the operator controls the second motor to run. The shaft connected to the output end of the second motor rotates, and the spiral blades fixed on its surface also rotate. The rotating spiral blades will squeeze the coal ash in the inner tank and discharge it. The discharged coal ash will enter the container through the dust bag. When the coal ash in the inner tank cannot be discharged by the spiral blades, the operator can start the first motor in conjunction with the buffer to vibrate the inner tank and shake off the coal ash adhering to the inner wall of the inner tank, thus completing the discharge operation.

[0006] Preferably, electric actuators are fixed on both sides of the outer bottom of the inner tank, and the output end of the electric actuator is connected to a cone block. By setting the electric actuators, the cone block can be raised and lowered at the outer bottom of the inner tank to change its position, thereby indirectly changing the discharge speed.

[0007] Preferably, the cone block adopts a conical structure design. The cone block with a conical structure design can be inserted into the outer bottom end of the inner tank. After being inserted into the inner tank and then loosened, the discharge speed can be changed.

[0008] Preferably, the outer surface of the second motor is provided with a housing, and the housing is fixed to the surface of the cross plate. By providing the housing, the second motor can be installed inside, thus achieving the effect of providing both an installation position and a protective position.

[0009] Preferably, the second motor is a drive motor, and the first motor is a vibration motor. By setting the second motor, the shaft and the spiral blades mounted on its surface can rotate, achieving the effect of rotational power output. By setting the first motor, the inner tank can vibrate in conjunction with the buffer, achieving the effect of vibration power output.

[0010] Preferably, a feed hopper is installed through the center of the top of the outer tank, and a top cover is rotatably mounted on the surface of the feed hopper. A handle is provided at one end of the top cover. The feed hopper allows coal ash to be stored in the inner tank to be transferred through it, providing a feeding position. The top cover allows the feed hopper to be closed when no material is being fed, preventing debris from falling in. The handle provides a point of leverage for workers to easily rotate and open and close the top cover.

[0011] Preferably, a dustproof bag is connected to the middle of the bottom of the outer tank. By setting the dustproof bag, the coal ash in the inner tank can be continuously and in a closed manner during discharge, thus avoiding the generation of dust.

[0012] Preferably, the outer bottom side of the outer tank is connected to a support leg, and a base plate is fixed to the bottom of the support leg. Through the cooperation of the support leg and the base plate, this utility model can be fixedly installed in the position to be used, achieving the effect of fixing the utility model in place and allowing it to be placed off the ground for use.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model features an inner tank installed inside an outer tank via a buffer, with a vibrating first motor installed on both sides to prevent adhesion and blockage, and a spiral blade in the middle driven by a second motor to discharge fly ash, ensuring continuous and uniform feeding. The cone block driven by the electric push rod at the bottom controls the feeding speed, improving feeding accuracy and ease of operation. The overall design improves work efficiency and stability, and solves many shortcomings of traditional feeding mechanisms. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main appearance structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the outer tank of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the inner tank of this utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the outer shell of this utility model.

[0019] In the diagram: 1. Top cover; 2. Feed hopper; 3. Outer tank; 4. Dust bag; 5. Support leg; 6. Inner tank; 7. Buffer; 8. First motor; 9. Electric push rod; 10. Cone block; 11. Outer shell; 12. Horizontal plate; 13. Shaft; 14. Spiral blade; 15. Second motor. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the present invention proposes a fly ash silo feeding mechanism for a raw material mill, comprising an outer tank 3 and an inner tank 6. The inner tank 6 is located in the middle of the interior of the outer tank 3. A first motor 8 is located on both sides of the middle of the exterior of the inner tank 6. A horizontal plate 12 is fixed in the middle of the interior of the inner tank 6. The inner tank 6 is connected to and installed in the middle of the interior of the outer tank 3 through a buffer 7. A second motor 15 is fixed in the middle of the surface of the horizontal plate 12. A shaft 13 is connected to the output end of the second motor 15. A spiral blade 14 is fixed on the surface of the shaft 13.

[0023] The operator must first connect an external power supply to this utility model and control its operation via a controller. The operator holds the handle and applies force to rotate and open the top cover 1. After the top cover 1 is opened, the operator pours the coal ash to be used into the feed hopper 2. The coal ash is then transported through the feed hopper 2 to the inner tank 6. The transport is stopped after a suitable amount has been conveyed. When the operator needs to use the coal ash from the inner tank 6, the operator takes the container to the bottom of the dust bag 4 and inserts one end of the dust bag 4 into the container. At this time, the operator uses the electric actuator 9 to control the position of the cone 10 at the bottom of the inner tank 6, thereby adjusting its position. The coal ash discharge rate inside the inner tank 6 is controlled by the operator. The second motor 15 is then operated. The second motor 15 rotates the shaft 13 connected to the output end. After the shaft 13 rotates, the spiral blades 14 fixed on its surface will also rotate. The rotating spiral blades 14 will squeeze the coal ash in the inner tank 6 out. The discharged coal ash will enter the container through the dust bag 4. When the coal ash in the inner tank 6 cannot be discharged by the spiral blades 14, the operator can start the first motor 8 in conjunction with the buffer 7 to vibrate the inner tank 6, shake off the coal ash adhering to the inner wall of the inner tank 6, and complete the discharge operation.

[0024] Example 2

[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the present invention proposes a fly ash silo feeding mechanism for a raw material mill. Compared with Embodiment 1, this embodiment further includes: electric push rods 9 fixed on both sides of the outer bottom end of the inner tank 6, and a cone block 10 connected to the output end of the electric push rod 9. The cone block 10 adopts a conical structure design. The outer surface of the second motor 15 is provided with a housing 11, and the housing 11 is fixed to the surface of the horizontal plate 12. The second motor 15 is a drive motor, and the first motor 8 is a vibration motor. A feed hopper 2 is installed through the middle of the outer top end of the outer tank 3. A top cover 1 is rotatably installed on the surface of the feed hopper 2. A handle is provided on one end of the surface of the top cover 1. A dustproof bag 4 is connected to the middle of the outer bottom end of the outer tank 3. A support leg 5 is connected to the side of the outer bottom end of the outer tank 3, and a base plate is fixed to the bottom end of the support leg 5.

[0026] In this embodiment, as Figure 2 and Figure 3 As shown, by setting the electric actuator 9, the cone block 10 can be raised and lowered at the bottom of the outer side of the inner tank 6 to change its position, thereby indirectly changing the discharge speed.

[0027] like Figure 2 and Figure 3 As shown, the cone block 10 with a conical structure can be inserted into the bottom of the outer side of the inner tank 6. After being inserted into the inner tank and loosened, the discharge speed can be changed.

[0028] like Figure 3 and Figure 4 As shown, by providing the housing 11, the second motor 15 can be installed inside, thus achieving the effect of providing both an installation position and a protection position.

[0029] like Figure 2 and Figure 4 As shown, by setting the second motor 15, the shaft 13 and the spiral blades 14 mounted on its surface can rotate, achieving the effect of rotational power output. By setting the first motor 8, the inner tank 6 can vibrate in conjunction with the buffer 7, achieving the effect of vibration power output.

[0030] like Figure 1 and Figure 2 As shown, the installation of the feed hopper 2 allows the coal ash to be stored in the inner tank 6 to be transferred to its interior through this point, providing a feeding position. The installation of the top cover 1 allows the feed hopper 2 to be closed when no material is being fed, preventing debris from falling in. The installation of the handle allows the operator to easily turn to open and close the top cover 1, providing a point of force application.

[0031] like Figure 1 As shown, by setting up the dustproof bag 4, the coal ash in the inner tank 6 can be continuously and closedly transported when it is discharged, thus achieving the effect of avoiding dust generation.

[0032] like Figure 1As shown, the cooperation of the support leg 5 and the base plate allows the present invention to be fixedly installed in the position to be used, achieving the effect of fixing the present invention and allowing the present invention to be placed off the ground for use.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A raw mill fly ash bin discharge mechanism comprising an outer tank (3) and an inner tank (6), characterized in that: The outer tank body (3) is internally provided with an inner tank body (6), the outer tank body (6) is provided with a first motor (8) on both sides of the middle part of the outer tank body (6), the inner tank body (6) is fixed with a horizontal plate (12) in the middle part of the inner tank body (6), and the inner tank body (6) is connected and installed in the middle part of the outer tank body (3) through a buffer (7), the surface of the horizontal plate (12) is fixed with a second motor (15), the output end of the second motor (15) is connected with a shaft rod (13), and the surface of the shaft rod (13) is fixed with a spiral blade (14).

2. A raw mill coal ash bin discharging mechanism according to claim 1, characterized in that: The outer bottom end of the inner tank body (6) is fixed with an electric push rod (9), and the output end of the electric push rod (9) is connected with a taper block (10).

3. A raw mill coal ash bin discharging mechanism according to claim 2, characterized in that: The taper block (10) adopts a conical structure design.

4. A raw mill coal ash bin discharging mechanism according to claim 1, characterized in that: The outer surface of the second motor (15) is provided with an outer shell (11), and the outer shell (11) is fixed on the surface of the horizontal plate (12).

5. A raw mill coal ash bin discharging mechanism according to claim 1, characterized in that: The second motor (15) is a driving motor, and the first motor (8) is a vibration motor.

6. A raw mill coal ash bin discharging mechanism according to claim 1, characterized in that: The outer top end of the outer tank body (3) is provided with an inlet hopper (2), the surface of the inlet hopper (2) is rotatably provided with a top cover (1), and the surface of the top cover (1) is provided with a handle.

7. A raw mill coal ash bin discharging mechanism according to claim 1, characterized in that: The outer bottom end of the outer tank body (3) is connected with a dust bag (4).

8. A raw mill coal ash bin discharging mechanism according to claim 1, characterized in that: The outer bottom end of the outer tank body (3) is connected with a support leg (5), and the bottom end of the support leg (5) is fixed with a bottom plate.