Limestone powder bin discharging device

Abstract

The utility model relates to a limestone powder bin blanking device, which belongs to the technical field of blanking devices, and comprises a star-shaped feeder and a screw feeder, an overflow device is arranged between the star-shaped feeder and the screw feeder, the overflow device can discharge redundant materials, the bottom of the overflow device is connected with a backflow pipeline, the backflow pipeline is connected with a stock bin, and the stock bin is connected with the overflow device. The backflow pipeline is used for guiding redundant materials into the stock bin again; according to the discharging device of the limestone powder bin, when the star-shaped feeding machine supplies materials too fast and the spiral feeding machine does not convey the materials in time, redundant materials are discharged in time through the overflow device, the material blocking phenomenon is avoided, meanwhile, the materials are guided into the material bin again through the backflow pipeline, and normal operation of the device is guaranteed.

Description

Technical Field

[0001] The utility model relates to a limestone powder bin unloading device, belonging to the technical field of unloading devices. Background Art

[0002] In the desulfurization system, the unloading work of the limestone powder bin is completed by the star feeder and the screw feeder. During operation, the material in the limestone powder bin passes through the star feeder and enters the screw feeder. However, the feeding frequency of the star feeder is difficult to control, and the material is often fed too fast, and the material entering the screw feeder is not transported in time, which is easy to cause material blockage, causing the equipment to trip and affecting its use. Utility Model Content

[0003] In view of the above deficiencies in the prior art, the technical problem to be solved by the utility model is: to provide a limestone powder silo unloading device, when the star feeder feeds too fast and the spiral feeder does not deliver in time, the excess material can be discharged in time to avoid blockage and ensure the normal operation of the device.

[0004] The limestone powder bin unloading device described in the utility model comprises a star feeder and a screw feeder, an overflow device is installed between the star feeder and the screw feeder, the overflow device can discharge excess material, the bottom of the overflow device is connected to a reflux pipe, the reflux pipe is connected to the bin, and the reflux pipe is used to re-introduce excess material into the bin.

[0005] The technical solution of the utility model is to provide a limestone powder bin unloading device. When the star feeder feeds too fast and the spiral feeder fails to deliver in time, the excess material can be discharged in time through the overflow device and enter the reflux pipe, and then the material is re-introduced into the bin through the reflux pipe.

[0006] Preferably, the overflow device includes an overflow pipe, which is provided with an obliquely inserted tee, the upper part of the straight pipe of the obliquely inserted tee is connected to the outlet of the star feeder, the lower part of the straight pipe of the obliquely inserted tee is connected to the inlet of the screw feeder, and the oblique pipe of the obliquely inserted tee is connected to the return pipe through a diameter change.

[0007] Furthermore, a flip plate is provided inside the oblique tube of the oblique tee, the flip plate is rotatably connected to the oblique tee, springs are provided on both sides of the flip plate, one side of the spring is fixedly connected to the flip plate, and the other side of the spring is connected to the overflow pipe; when there is too much material, the excess material will push the flip plate and be discharged from the overflow pipe. After the material is discharged, the flip plate is reset under the action of the spring.

[0008] Preferably, a fan is provided at one end of the return pipe, and the other end of the return pipe is connected to the silo.

[0009] Preferably, a level meter for monitoring the material level is provided below the variable diameter, and the level meter is interlocked with the fan; when the overflowing material reaches the height of the level meter, the level meter sends a signal to the control system, the fan starts, and blows the material back to the silo, and when the height of the material is lower than the level meter, the fan stops.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] The limestone powder bin unloading device described in the utility model can discharge excess materials in time through the overflow device when the star feeder feeds too fast and the spiral feeder fails to deliver in time, thereby avoiding material blockage. At the same time, the materials are reintroduced into the bin through the reflux pipe to ensure the normal operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 is a cross-sectional view of the overflow device;

[0014] Figure 3 It is a three-dimensional diagram of the flip board.

[0015] In the figure: 1. Screw feeder; 2. Fan; 3. Level meter; 4. Return pipe; 5. Silo; 6. Star feeder; 7. Overflow pipe; 71. Oblique insertion tee; 72. Reducer; 8. Flip plate; 9. Spring. DETAILED DESCRIPTION

[0016] The utility model is further described below in conjunction with specific embodiments.

[0017] However, the description of the present invention is merely an embodiment of structural and even functional description, and the scope of rights of the present invention is not limited by the embodiments described in the text.

[0018] For example, multiple embodiments may have multiple changes and multiple forms, and it should be understood that the scope of rights of the present utility model includes equivalents that can realize the technical idea.

[0019] like Figures 1 to 3 As shown, this embodiment is implemented through the following technical scheme: it includes a star feeder 6 and a screw feeder 1, an overflow device is installed between the star feeder 6 and the screw feeder 1, the overflow device can discharge excess material, the bottom of the overflow device is connected to a return pipe 4, the return pipe 4 is connected to a silo 5, and the return pipe 4 is used to re-introduce excess material into the silo 5.

[0020] In this embodiment, the overflow device includes an overflow pipe 7, which is provided with an obliquely inserted tee 71. The upper part of the straight pipe of the obliquely inserted tee 71 is connected to the outlet of the star feeder 6, and the lower part of the straight pipe of the obliquely inserted tee 71 is connected to the inlet of the screw feeder 1. The oblique pipe of the obliquely inserted tee 71 is connected to the return pipe 4 through a reducer 72.

[0021] A flip plate 8 is provided inside the oblique tube of the oblique tee 71, and the flip plate 8 is rotatably connected to the oblique tee 71. Springs 9 are provided on both sides of the flip plate 8, one side of the spring 9 is fixedly connected to the flip plate 8, and the other side of the spring 9 is connected to the pipe wall of the overflow pipe 7; when there is too much material, the excess material will push the flip plate 8 and be discharged from the overflow pipe 7. After the material is discharged, the flip plate 8 is reset under the action of the spring 9.

[0022] A fan 2 is provided at one end of the return pipe 4, and the other end of the return pipe 4 is connected to the silo 5; a level meter 3 for monitoring the material level in the pipe is provided below the reducer 72, and the level meter 3 is interlocked with the fan 2; when the overflowing material reaches the height of the level meter 3, the level meter 3 sends a signal to the control system, and the fan 2 starts to blow the material back to the silo 5. When the height of the material is lower than the level meter 3, the fan 2 stops.

[0023] Of course, the above contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and any equivalent changes and improvements made by ordinary technicians in the technical field within the essential scope of the present invention shall fall within the scope of the patent coverage of the present invention.

Claims

1. A limestone powder silo unloading device, characterized in that: The invention comprises a star feeder (6) and a screw feeder (1), wherein an overflow device for discharging excess material is installed between the star feeder (6) and the screw feeder (1), the bottom of the overflow device is connected to a return pipe (4), and the return pipe (4) is connected to a silo (5).

2. The limestone powder bin unloading device according to claim 1, characterized in that: The overflow device comprises an overflow pipe (7), the overflow pipe (7) is provided with an obliquely inserted tee (71), the upper part of the straight pipe of the obliquely inserted tee (71) is connected to the outlet of the star feeder (6), the lower part of the straight pipe of the obliquely inserted tee (71) is connected to the inlet of the screw feeder (1), and the obliquely inserted pipe of the obliquely inserted tee (71) is connected to the return pipe (4) through a reducer (72).

3. The limestone powder bin unloading device according to claim 2, characterized in that: A flip plate (8) is provided inside the oblique insertion tube of the oblique insertion tee (71), the flip plate (8) is rotatably connected to the oblique insertion tee (71), springs (9) are provided on both sides of the flip plate (8), one side of the spring (9) is fixedly connected to the flip plate (8), and the other side of the spring (9) is connected to the overflow pipe (7).

4. The limestone powder bin unloading device according to claim 2, characterized in that: A fan (2) is provided at one end of the return pipe (4), and the other end of the return pipe (4) is connected to the silo (5).

5. The limestone powder silo unloading device according to claim 4, characterized in that: A material level meter (3) for monitoring the material level is provided below the variable diameter (72), and the material level meter (3) is interlockedly controlled with the fan (2).

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