Warning device for fullness of coal conveying silo

Abstract

The utility model discloses a full alarm device for a coal conveying silo. The full alarm device comprises a coal storage bunker, a top cover is fixedly arranged at the top end of the coal storage bunker, a feeding device is arranged on the top cover, monitoring mechanisms are symmetrically arranged at the top end of the interior of the coal storage bunker, protection mechanisms are arranged outside the monitoring mechanisms, and a discharging opening is formed in the bottom end of the coal storage bunker. By arranging the monitoring mechanism, in the feeding process of the coal storage bunker, the amount of coal in the coal storage bunker can be conveniently monitored, the situation that the bunker is full during feeding can be prevented, people do not need to conduct monitoring all the time, conveying can be automatically stopped after a preset value is monitored, and convenience is achieved; by arranging the protection mechanism, the monitoring mechanism can be protected when the monitoring device is not used, external coal ash and the like are prevented from entering the monitoring device and being attached to the surface of the monitoring mechanism, the monitoring device can be prevented from being affected with damp, the monitoring device is opened before use, meanwhile, the surface can be wiped, surface cleanliness is ensured, and the monitoring accuracy is prevented from being affected by impurities and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of storage, in particular to a full-storage alarm device for a coal silo. Background Art

[0002] At present, the existing coal plants have not had full-bin protection devices when transporting coal on the coal conveyor belts since the plants were built. In the harsh coal transportation environment, affected by factors such as coal quality, electrical failures, and the length of the coal conveyor belts, the coal transport and inspection personnel cannot always monitor the height of the coal bin, and serious coal accumulation in the coal bins often occurs.

[0003] The existing methods for inspecting coal storage bins mostly use cameras to shoot internal images or staff to check. The camera monitoring requires staff to observe the monitoring screen all the time, which consumes energy, and the staff need to climb high to check on site, which is relatively inconvenient and has certain risks. Utility Model Content

[0004] The purpose of the utility model is to overcome the above-mentioned deficiencies in the prior art and to provide a coal silo full silo alarm device with a reasonable structural design.

[0005] The technical solution adopted by the utility model to solve the above-mentioned problem is: a coal silo full warehouse alarm device, including a coal storage bin, characterized in that: a top cover is fixedly provided on the top of the coal storage bin, a feeding device is provided on the top cover, a monitoring mechanism is symmetrically provided on the inner top of the coal storage bin, a protective mechanism is provided outside the monitoring mechanism, and a discharge port is provided at the bottom of the coal storage bin.

[0006] Preferably, the monitoring mechanism includes mounting plates symmetrically arranged on the inner side walls of the coal storage bin, wherein a second laser emitter is provided in the middle of one of the mounting plates, and a first laser emitter is symmetrically arranged on both sides of the second laser emitter, and a second laser receiver matching the second laser emitter is provided in the middle of the other mounting plate, and a first laser receiver matching the first laser emitter is symmetrically arranged on both sides of the second laser receiver.

[0007] Preferably, a mounting frame is symmetrically provided on the mounting plate, and a drying plate is provided in the mounting frame.

[0008] Preferably, the bottom end of the coal storage bin is provided with supporting feet at equal intervals, and the top end of the coal storage bin is fixedly provided with a guardrail.

[0009] Preferably, a ladder is fixedly provided on the side wall of the coal storage bin.

[0010] Preferably, the protection mechanism comprises an electric push rod symmetrically arranged at the bottom end of the top cover, and an output end of the electric push rod is provided with a blocking cover, and the blocking cover corresponds to the mounting plate.

[0011] Preferably, the protection mechanism further comprises a cleaning plate equidistantly arranged inside the blocking cover, and cleaning cotton is provided on the side wall of the cleaning plate.

[0012] Compared with the prior art, the utility model has the following advantages and effects:

[0013] By setting up a monitoring mechanism, the amount of coal inside the coal storage bin can be monitored during the loading process, which can prevent the bin from being full during loading.

[0014] By setting up a protective mechanism, the monitoring mechanism can be protected when not in use to prevent external coal dust and the like from entering the interior and adhering to the surface of the monitoring mechanism. It can also be prevented from getting damp. It can be opened before use and the surface can be wiped to ensure that the surface is clean and to prevent impurities from affecting the accuracy of monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the coal silo full silo alarm device proposed by the utility model;

[0016] Figure 2 This is a partial structural diagram of the coal silo full silo alarm device proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the monitoring mechanism in the coal silo full silo alarm device proposed by the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the protection mechanism in the coal silo full silo alarm device proposed by the utility model;

[0019] Figure 5 The utility model is a schematic diagram of the structure of the installation frame of the coal silo full silo alarm device.

[0020] In the figure: coal storage bin 1, top cover 2, feeding device 3, guardrail 4, ladder 5, support leg 6, discharge port 7, electric push rod 8, baffle cover 9, mounting plate 10, laser transmitter 1 11, laser transmitter 2 12, laser receiver 1 13, laser receiver 2 14, mounting frame 15, cleaning plate 16, cleaning cotton 17, drying plate 18. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0022] See also Figure 1-Figure 5The utility model provides a coal silo full warehouse alarm device, including a coal storage bin 1 for storing coal, a top cover 2 is arranged on the top, and a feeding device 3 is arranged on the top cover 2 (it can be a conveyor belt or other conveying devices, which is a relatively mature technology and will not be described here), a ladder 5 is welded on the side wall of the coal storage bin 1, which can facilitate the staff to climb and inspect, etc., a guardrail 4 is welded on the side surface around the top of the coal storage bin 1 to improve the safety of the staff at the top, and legs 6 are equidistantly welded vertically at the bottom of the coal storage bin 1, and the number of legs can be three or four groups to ensure stability, and a discharge port 7 is arranged at the bottom of the coal storage bin 1 for convenient coal discharge.

[0023] In order to monitor the amount of coal in the coal storage bin 1 and prevent the occurrence of full bin and accumulation during loading, two mounting plates 10 are installed on the inner side wall of the coal storage bin 1, and a laser transmitter 12 is installed in the middle of one of the mounting plates 10, and a laser receiver 14 is installed at the corresponding position of the other mounting plate 10. In order to improve the accuracy of monitoring, a laser transmitter 11 and a laser receiver 13 are symmetrically installed at both ends of the laser transmitter 12 and the laser receiver 14, respectively. When the coal in the coal storage bin 1 is below the warning line, the laser receiver 14 receives the signal from the laser transmitter 12, and the laser receiver 13 receives the signal from the laser transmitter 11. When the coal is transported into the coal storage bin 1, the two As the coal falls, signals are received at intervals, and as the material is loaded, the coal in the coal storage bin 1 gradually accumulates. When it reaches the warning line, the coal in the middle blocks the signal sent by the laser transmitter 12, and the laser receiver 14 cannot receive the signal sent, and cannot receive the signal for a long time. Then, as the material is loaded, the laser receiver 13 cannot receive the signal sent by the laser transmitter 11. At this time, the coal inside reaches the preset height, and the feeding device 3 stops conveying and feeding (a control device can be installed on the side wall of the coal storage bin 1, which can conveniently and timely control the start and stop of the feeding device 3. This is a relatively mature technology and will not be elaborated here) to avoid full warehouse. In order to monitor more accurately, a camera can also be installed at the top of the coal storage bin 1 to monitor the internal scene.

[0024] In order to provide protection for the monitoring mechanism when not in use and ensure its service life, and to prevent coal ash from adhering to the surface and affecting the monitoring effect, a mounting frame 15 is symmetrically installed on the mounting plate 10, and a drying plate 18 is embedded in the mounting frame 15. The drying plate 18 is provided with a filling hole for conveniently filling the desiccant. At the same time, an electric push rod 8 is symmetrically arranged at the bottom end of the inner part of the top cover 2, and a baffle 9 is installed at the output end (bottom end) of the electric push rod 8. The baffle 9 is adapted to the mounting plate 10 and can seal the monitoring mechanism on the mounting plate 10 after moving down to prevent coal ash from entering the interior. At the same time, the surface can also be wiped. Cleaning plates 16 are equidistantly bonded to the inside of the baffle 9, and cleaning cotton 17 is bonded to the side wall of the cleaning plate 16, which can wipe the laser transmitter 2 12, the laser transmitter 1 11, the laser receiver 2 14 and the laser receiver 1 13 to ensure the monitoring effect.

[0025] When in use, coal is loaded through the loading device 3, and the coal enters the coal storage bin 1. The amount of coal in the coal storage bin 1 is monitored through the cooperation of the laser transmitter 11 and the laser receiver 13, the laser transmitter 2 12 and the laser receiver 2 14. After reaching the preset value, the feeding operation is stopped after monitoring to avoid full bin. Then, the electric push rod 8 is extended and the baffle 9 is moved downward to fit with the mounting plate 10, thereby sealing the monitoring mechanism on the mounting plate 10. At the same time, the drying plate 18 can ensure that the interior is in a dry environment to avoid moisture and rust. When it is needed in the future, the electric push rod 8 is retracted and the baffle 9 is moved up and reset. At this time, the cleaning cotton 17 on the cleaning plate 16 can wipe the surface of the monitoring mechanism to ensure cleanliness without affecting subsequent monitoring use.

[0026] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0027] In addition, it should be noted that the above content described in this specification is only an example of the structure of the utility model. All equivalent changes made based on the structure, features and principles described in the utility model patent are included in the protection scope of the utility model patent. Technicians in the technical field of the utility model can make various modifications, supplements or replace the specific embodiments described in a similar manner, as long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should all fall within the protection scope of the utility model.

Claims

1. A coal silo full storage alarm device, comprising a coal storage silo (1), characterized in that: A top cover (2) is fixedly provided at the top of the coal storage bin (1), a loading device (3) is provided on the top cover (2), a monitoring mechanism is symmetrically provided at the top of the interior of the coal storage bin (1), a protective mechanism is provided outside the monitoring mechanism, and a discharge port (7) is provided at the bottom of the coal storage bin (1); The monitoring mechanism comprises a mounting plate (10) symmetrically arranged on the inner side wall of the coal storage bin (1), wherein a second laser emitter (12) is arranged in the middle of one of the mounting plates (10), and a first laser emitter (11) is symmetrically arranged on both sides of the second laser emitter (12), and a second laser receiver (14) matching the second laser emitter (12) is arranged in the middle of the other mounting plate (10), and a first laser receiver (13) matching the first laser emitter (11) is symmetrically arranged on both sides of the second laser receiver (14).

2. The coal silo full silo alarm device according to claim 1, characterized in that: A mounting frame (15) is symmetrically arranged on the mounting plate (10), and a drying plate (18) is arranged inside the mounting frame (15).

3. The coal silo full silo alarm device according to claim 1, characterized in that: The bottom end of the coal storage bin (1) is provided with supporting feet (6) at equal intervals, and the top end of the coal storage bin (1) is fixedly provided with a guardrail (4).

4. The coal silo full silo alarm device according to claim 1, characterized in that: A ladder (5) is fixedly provided on the side wall of the coal storage bin (1).

5. The coal silo full silo alarm device according to claim 1, characterized in that: The protection mechanism comprises an electric push rod (8) symmetrically arranged at the bottom end inside the top cover (2), and a blocking cover (9) is provided at the output end of the electric push rod (8), and the blocking cover (9) corresponds to the mounting plate (10).

6. The coal silo full silo alarm device according to claim 5, characterized in that: The protection mechanism further comprises a cleaning plate (16) arranged equidistantly inside the blocking cover (9), and a cleaning cotton (17) is provided on a side wall of the cleaning plate (16).

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