Blanking device for coal weigher

Abstract

The utility model discloses a discharging device for a coal weigher. The bottom of a discharging bin communicates with a discharging pipe, lump coal is temporarily stored in the discharging bin, a material blocking plate is fixed to the discharging pipe, a discharging cavity corresponding to the discharging pipe is formed in the material blocking plate, an upper-layer gate plate and a lower-layer gate plate are arranged on the two sides of the material blocking plate in a drawing and inserting mode respectively, and an upper-layer telescopic rod is arranged at one end of the upper-layer gate plate; when blanking is needed, the upper layer telescopic rod and the lower layer telescopic rod are controlled to be shortened to drive the upper layer flashboard and the lower layer flashboard to move, so that the upper layer flashboard and the lower layer flashboard are far away from each other and staggered on the horizontal plane to achieve blanking, and when blanking needs to be stopped, the lower layer telescopic rod is connected with the L-shaped connecting plate. The upper-layer telescopic rod and the lower-layer telescopic rod are controlled to extend to drive the upper-layer flashboard and the lower-layer flashboard to move, so that the upper-layer flashboard and the lower-layer flashboard are close to each other on the horizontal plane, the blanking pipe is plugged through the two layers of flashboards, the coal leakage or gas leakage phenomenon caused by the fact that one layer of flashboard is not plugged in place can be avoided, and the plugging effect and the use safety are effectively ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of cement processing and production, in particular to a blanking device for a coal scale. Background Art

[0002] In the process of cement processing and production, equipment that consumes coal such as a rotary kiln is usually required to perform corresponding processing on cement raw materials. Moreover, during the use of coal, a blanking device is needed to blank coal onto a coal scale for metering. Once the metering is up to standard, blanking needs to be stopped immediately. However, for the existing coal blanking device, the blanking blocking effect on the blanking pipe is poor. After stopping blanking, the blanking pipe at the bottom of the blanking bin is prone to coal leakage or air leakage, which may cause spontaneous combustion of pulverized coal, resulting in low safety. Summary of the Utility Model

[0003] The purpose of this application is to provide a blanking device for a coal scale to solve the problems of the existing coal blanking device, which has a poor blanking blocking effect on the blanking pipe. After stopping blanking, the blanking pipe at the bottom of the blanking bin is prone to coal leakage or air leakage, which may cause spontaneous combustion of pulverized coal, resulting in low safety.

[0004] To solve the above technical problems, this application provides a blanking device for a coal scale, including:

[0005] A blanking bin, the bottom of the blanking bin is communicated with a blanking pipe, a baffle is fixed at the blanking pipe, a blanking cavity corresponding to the blanking pipe is arranged in the baffle, an upper gate plate and a lower gate plate are respectively inserted and pulled on both sides of the baffle, an upper telescopic rod is arranged at one end of the upper gate plate, a lower telescopic rod is arranged at one end of the lower gate plate, and one ends of the upper telescopic rod and the lower telescopic rod are respectively connected with an L-shaped connecting plate, and the L-shaped connecting plate is fixed on one side of the baffle.

[0006] On the basis of the above embodiment, as a preferred embodiment, an upper limit groove and a lower limit groove communicated with the blanking cavity are further arranged in the baffle, both sides of the upper gate plate are located in the upper limit groove, and the lower gate plate is located in the lower limit groove.

[0007] On the basis of the above embodiment, as a preferred embodiment, an upper groove and a lower groove communicated with the blanking cavity are further arranged in the baffle, one end of the upper gate plate is located in the upper groove, and one end of the lower gate plate is located in the lower groove.

[0008] It should be specifically noted in the solution that the baffle and the blanking pipe are integrally formed.

[0009] On the basis of the above embodiments, as a preferred implementation mode, a dust collecting hood is further provided at the feeding end of the lower material bin, and the dust collecting hood is connected to the dust collecting system through a dust collecting pipe.

[0010] It is necessary to explain in detail in the solution that sealing gaskets are also provided at the positions where the upper gate plate and the lower gate plate contact the material baffle plate.

[0011] Compared with the prior art, the utility model provides a coal weighing feeding device, including a feeding bin, the bottom of which is connected with a feeding pipe. When in use, the lump coal can be temporarily stored in the feeding bin, a baffle plate is fixed at the feeding pipe, a feeding cavity corresponding to the feeding pipe is arranged in the baffle plate, an upper gate plate and a lower gate plate are respectively inserted and arranged on both sides of the baffle plate, an upper telescopic rod is arranged at one end of the upper gate plate, a lower telescopic rod is arranged at one end of the lower gate plate, one end of the upper telescopic rod and the lower telescopic rod are respectively connected to an L-shaped connecting plate, and the L-shaped connecting plate is fixed to the baffle plate. On one side of the material plate, when material is needed to be unloaded, the upper telescopic rod and the lower telescopic rod are controlled to shorten to drive the upper gate plate and the lower gate plate to move, so that the upper gate plate and the lower gate plate are staggered away from each other on the horizontal plane to realize material unloading. When material unloading needs to be stopped, the upper telescopic rod and the lower telescopic rod are controlled to extend to drive the upper gate plate and the lower gate plate to move, so that the upper gate plate and the lower gate plate are close to each other on the horizontal plane. The unloading pipe is blocked by two gate plates, which can avoid coal leakage or gas leakage caused by inadequate blocking of one gate plate, effectively ensuring the blocking effect and safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solution of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without inventiveness.

[0013] Figure 1 A schematic diagram of the structure of a coal weighing feeding device provided in an embodiment of the present application;

[0014] Figure 2 A schematic diagram of the internal structure of a baffle plate provided in an embodiment of the present application;

[0015] Figure 3 A schematic diagram of the internal structure of another baffle plate provided in an embodiment of the present application;

[0016] In the figure: 1. material discharge bin; 2. material discharge pipe; 3. material baffle plate; 4. material discharge cavity; 5. upper gate plate; 6. lower gate plate; 7. upper telescopic rod; 8. lower telescopic rod; 9. L-shaped connecting plate; 10. upper limit groove; 11. upper groove; 12. lower groove; 13. dust collecting hood; 14. dust collecting pipe. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0018] The core of the present application is to provide a feeding device for a coal scale, which solves the problem that the existing coal feeding device has a poor feeding and blocking effect on the feeding pipe. After the feeding is stopped, the feeding pipe at the bottom of the feeding bin is prone to coal leakage or air leakage, which may cause spontaneous combustion of coal powder and result in low safety.

[0019] Figure 1 This is a schematic diagram of the structure of a coal weighing feeding device provided in an embodiment of the present application. Figure 2 A schematic diagram of the internal structure of a baffle plate provided in an embodiment of the present application, Figure 3 Another schematic diagram of the internal structure of the baffle plate provided in the embodiment of the present application is shown in FIG. Figures 1 to 3 shown.

[0020] Example 1

[0021] A material discharge device for coal weighing includes a material discharge bin 1. The size and shape of the material discharge bin 1 can be determined according to actual conditions. A material discharge pipe 2 is connected to the bottom of the material discharge bin 1. A material baffle plate 3 is fixed to the material discharge pipe 2. In actual design, in order to improve the convenience of installation, preferably, the material baffle plate 3 and the material discharge pipe 2 can be set as an integrated molding structure. A material discharge cavity 4 is set in the material baffle plate 3. After installation, the material discharge cavity 4 corresponds to the material discharge pipe 2. An upper gate plate 5 and a lower gate plate 6 are respectively inserted and arranged on both sides of the material baffle plate 3. The length and width of the upper gate plate 5 and the lower gate plate 6 are both greater than the length and width of the material discharge cavity 4, ensuring that the material discharge cavity 4 can be blocked by the upper gate plate 5 and the lower gate plate 6. An upper telescopic rod 7 is set at one end of the upper gate plate 5, and a lower telescopic rod 8 is set at one end of the lower gate plate 6. The upper telescopic rod 7 and the lower telescopic rod 8 are arranged on one end of the lower gate plate 6. One end of the rod 8 is connected to the L-shaped connecting plate 9, which is fixed to one side of the baffle plate 3. The upper telescopic rod 7 and the lower telescopic rod 8 are fixed by the L-shaped connecting plate 9. When in use, the upper gate plate 5 and the lower gate plate 6 can be moved by controlling the extension and retraction of the upper telescopic rod 7 and the lower telescopic rod 8, so that the upper gate plate 5 and the lower gate plate 6 are close to each other or separated and staggered, thereby realizing the blocking and falling of the material at the discharge pipe 2. By setting two layers of gates, the blocking and sealing effect of the material can be achieved.

[0022] Example 2

[0023] Based on Embodiment 1, for a coal weighing blanking device, in order to improve the blocking effect on materials, preferably, an upper limiting groove 10 communicating with the blanking cavity 4 is further provided in the baffle plate 3, and a lower limiting groove (not shown in the figure). The two sides of the upper shutter 5 are located in the upper limiting groove 10, and the lower shutter 6 is located in the lower limiting groove.

[0024] Based on Embodiment 2, for a coal weighing blanking device, in order to further improve the blocking effect on materials and the operating stability of the upper shutter 5 and the lower shutter 6, preferably, an upper groove 11 and a lower groove 12 communicating with the blanking cavity 4 are further provided in the baffle plate 3. After installation, one end of the upper shutter 5 is located in the upper groove 11, and one end of the lower shutter 6 is located in the lower groove 12.

[0025] Based on Embodiment 1, for a coal weighing blanking device, in order to prevent the pulverized coal mixed in the lump coal from flying during the process of the material entering the blanking bin 1, preferably, a dust collection hood 13 is further provided at the feeding end of the blanking bin 1. The dust collection hood 13 is connected to the dust collection system through a dust collection pipe 14. The dust collection hood 13 cooperates with the dust collection pipe 14 to collect the pulverized coal that is lifted. The dust collection system is not shown in the figure.

[0026] Based on Embodiment 1, for a coal weighing blanking device, in order to further improve the blocking effect on materials, preferably, a sealing gasket is further provided at the position where the upper shutter 5 and the lower shutter 6 are in contact with the baffle plate 3. The sealing gasket is not shown in the figure.

[0027] A coal weighing blanking device provided in this embodiment includes a blanking bin 1. The bottom of the blanking bin 1 is communicated with a blanking pipe 2. During use, the lump coal can be temporarily stored in the blanking bin 1. A baffle plate 3 is fixed at the blanking pipe 2. A blanking cavity 4 corresponding to the blanking pipe 2 is provided in the baffle plate 3. An upper shutter 5 and a lower shutter 6 are respectively inserted and pulled on both sides of the baffle plate 3. An upper telescopic rod 7 is provided at one end of the upper shutter 5, and a lower telescopic rod 8 is provided at one end of the lower shutter 6. One ends of the upper telescopic rod 7 and the lower telescopic rod 8 are respectively connected to an L-shaped connecting plate 9. The L-shaped connecting plate 9 is fixed on one side of the baffle plate 3. When blanking is required, control the upper telescopic rod 7 and the lower telescopic rod 8 to shorten, driving the upper shutter 5 and the lower shutter 6 to move, so that the upper shutter 5 and the lower shutter 6 are separated from each other horizontally to realize blanking. When it is necessary to stop blanking, control the upper telescopic rod 7 and the lower telescopic rod 8 to extend, driving the upper shutter 5 and the lower shutter 6 to move, so that the upper shutter 5 and the lower shutter 6 approach each other horizontally. The blanking pipe 2 is blocked by two layers of shutters, which can avoid the phenomenon of coal leakage or air leakage caused by insufficient blocking of a single layer of shutter, effectively ensuring the blocking effect and use safety.

[0028] Other embodiments of the present application will be readily contemplated by those skilled in the art upon consideration of the specification and practice of the application disclosed herein. The present application is intended to cover any variations, uses, or adaptations of the present application, which follow the general principles of the present application and include the common general knowledge or conventional technical means in the technical field disclosed in the present application. The specification and examples are only illustrative, and the true scope of the present application is pointed out by the claims.

[0029] It should be understood that the present application is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The embodiments of the present application described above do not constitute a limitation on the protection scope of the present application.

Claims

1. A feeding device for coal weighing, characterized in that: include: A material discharge bin (1), wherein the bottom of the material discharge bin (1) is connected to a material discharge pipe (2), a material baffle plate (3) is fixed to the material discharge pipe (2), a material discharge cavity (4) corresponding to the material discharge pipe (2) is arranged in the material baffle plate (3), an upper gate plate (5) and a lower gate plate (6) are respectively inserted and inserted on both sides of the material baffle plate (3), an upper telescopic rod (7) is arranged at one end of the upper gate plate (5), and a lower telescopic rod (8) is arranged at one end of the lower gate plate (6), one end of the upper telescopic rod (7) and one end of the lower telescopic rod (8) are respectively connected to an L-shaped connecting plate (9), and the L-shaped connecting plate (9) is fixed to one side of the material baffle plate (3).

2. The coal weighing feeding device according to claim 1, characterized in that: The material blocking plate (3) is also provided with an upper limiting groove (10) and a lower limiting groove which are in communication with the material discharge cavity (4); two sides of the upper gate plate (5) are located in the upper limiting groove (10), and the lower gate plate (6) is located in the lower limiting groove.

3. The coal weighing feeding device according to claim 2, characterized in that: The baffle plate (3) is also provided with an upper groove (11) and a lower groove (12) which are in communication with the material discharge cavity (4); one end of the upper gate plate (5) is located in the upper groove (11), and one end of the lower gate plate (6) is located in the lower groove (12).

4. The coal weighing feeding device according to claim 1, characterized in that: The material baffle plate (3) and the material discharge pipe (2) are integrally formed.

5. The coal weighing feeding device according to claim 1, characterized in that: The feeding end of the lower material bin (1) is also provided with a dust collecting hood (13), and the dust collecting hood (13) is connected to the dust collecting system via a dust collecting pipe (14).

6. The coal weighing feeding device according to claim 1, characterized in that: Sealing gaskets are also provided at the positions where the upper gate plate (5) and the lower gate plate (6) contact the material blocking plate (3).

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