Protective device for preventing bin explosion and belt scram

Abstract

The utility model discloses a belt scram protection device for preventing a stock bin from exploding, which relates to the technical field of stock bin equipment and comprises a belt conveyor, the belt conveyor comprises a belt, a tail wheel, a tail shell, a discharge port, a lower support and a scram switch, and the scram switch is relatively far away from the tail shell and can be closed through pulling of a pull rope; the emergency stop protection mechanism is arranged below the belt conveyor; the emergency stop protection mechanism has the advantages that the emergency stop protection mechanism is installed at the bottom of the tail of an existing belt conveyor, when a bin explodes, the side, close to a balancing weight, in the material receiving tray rotates downwards along with continuous increase of overflowing calcium carbide materials, enough force for pulling an emergency stop switch is generated, and the emergency stop switch is stopped. And finally, the connecting piece rotates under the action of the iron chain, the emergency stop switch is directly pulled through the pull rope to enable the belt conveyor to stop immediately, feeding is stopped, the influence on production after the bin is exploded is reduced, and manual cleaning work for materials overflowing from the exploded bin is reduced.

Description

Technical field:

[0001] The utility model relates to the technical field of silo equipment, in particular to a belt emergency stop protection device for preventing silo explosion. Background technology:

[0002] In the process of calcium carbide production, the calcium carbide material needs to be transported to the silo by a belt conveyor for loading. The existing silo is equipped with a level meter to detect the height of the calcium carbide material.

[0003] The current technical defects are: due to the large amount of dust in the silo, the material level meter sometimes malfunctions, causing the silo to burst, causing the calcium carbide material to overflow through the belt discharge port after the silo bursts. The amount of calcium carbide material after the overflow is large, which is inconvenient to clean, causing unnecessary trouble to production. Utility model content:

[0004] The utility model aims to provide a belt emergency stop protection device for preventing a silo from bursting, so as to solve the problems raised in the above-mentioned background technology.

[0005] The utility model is implemented by the following technical solutions:

[0006] A belt emergency stop protection device to prevent a silo from bursting comprises a belt conveyor, wherein the belt conveyor comprises: a belt, a tail wheel, a tail shell, a material outlet, a lower bracket and an emergency stop switch, wherein the emergency stop switch is relatively far away from the tail shell and can be closed by pulling a pull rope; further comprising an emergency stop protection mechanism arranged below the belt conveyor, wherein the emergency stop protection mechanism comprises: a connecting piece, a pull rope, two iron chains, a material receiving tray, a support seat, a plurality of counterweights and a limiting steel bar; a connecting piece is rotatably arranged on the lower bracket, and one end of the connecting piece is connected to the pull rope and the emergency stop switch The other end of the connecting piece is connected to one side of the material receiving tray through an iron chain, the middle bottom portion of the material receiving tray is rotatably arranged on a support seat, the other side of the material receiving tray is connected to the lower surface of the overflow of the tail casing through an iron chain, a counterweight block is installed below the side of the material receiving tray away from the tail casing, so that the material receiving tray can only rotate relative to one side of the counterweight block as the calcium carbide material increases, and a limiting steel bar is also horizontally arranged below one side of the material receiving tray, and the lower surface of the material receiving tray can overlap the limiting steel bar after the material receiving tray rotates.

[0007] Preferably, the switching action pulling force of the emergency stop switch is N.

[0008] Preferably, the middle portion of the connecting member is rotatably disposed on the lower bracket.

[0009] Preferably, the material receiving tray is in the shape of an inverted triangle when viewed from the side, and is hollow from the inside to the upper surface.

[0010] The advantages of the utility model are as follows: an emergency stop protection mechanism is installed at the bottom of the tail of the existing belt conveyor. When the silo bursts, as the overflowed calcium carbide material continues to increase, the side of the receiving tray close to the counterweight block rotates downward, generating a force sufficient to pull the emergency stop switch, and finally the connecting part rotates under the action of the iron chain. The emergency stop switch is directly pulled by the pull rope to stop the belt conveyor immediately and stop feeding, thereby reducing the impact of the silo bursting on production and reducing the manual cleaning work of the overflowed material. Description of the drawings:

[0011] Figure 1 It is a structural schematic diagram of the prior art;

[0012] Figure 2 It is a structural schematic diagram of the utility model.

[0013] In the figure: 1. belt, 2. tail wheel, 3. tail shell, 4. discharge port, 5. lower bracket, 6. emergency stop switch, 7. connecting piece, 8. pull rope, 9. chain, 10. material receiving tray, 11. support seat, 12. counterweight, 13. limit steel bar, 14. material level meter. Specific implementation method:

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] See also Figure 1-2 The utility model provides a technical solution for the belt emergency stop protection device to prevent the silo from bursting:

[0016] A belt emergency stop protection device for preventing a silo from exploding comprises a belt conveyor, wherein the belt conveyor comprises: a belt 1, a tail wheel 2, a tail shell 3, a material outlet 4, a lower bracket 5 and an emergency stop switch 6, wherein the switch action pulling force of the emergency stop switch 6 is 50N, the emergency stop switch 6 is relatively far away from the tail shell 3 and can be closed by pulling a pull rope 8, and further comprises an emergency stop protection mechanism arranged below the belt conveyor.

[0017] The emergency stop protection mechanism includes: a connecting member 7, a pull rope 8, two iron chains 9, a material receiving tray 10, a support seat 11, a plurality of counterweights 12 and a limiting steel bar 13; the middle part of the connecting member 7 is rotatably arranged on the lower bracket 5, one end of the connecting member 7 is connected to the emergency stop switch 6 through the pull rope 8, the material receiving tray 10 is an inverted triangle when viewed from the side, and its interior to the upper surface is hollow, the other end of the connecting member 7 is connected to one side of the material receiving tray 10 through the iron chain 9, the middle part of the bottom of the material receiving tray 10 is rotatably arranged on the support seat 11, and the other side of the material receiving tray 10 is connected to the lower surface of the overflow of the tail shell 3 through the iron chain 9, and a counterweight 12 is installed below the side of the material receiving tray 10 away from the tail shell 3, so that the material receiving tray 10 can only rotate relative to the lower side of the counterweight 12 as the calcium carbide material increases, and the material receiving tray 10 is also horizontally provided with a limiting steel bar 13 below one side of the counterweight 12, and the lower surface of the material receiving tray 10 can overlap the limiting steel bar 13 after the material receiving tray 10 rotates.

[0018] The working principle is as follows: the calcium carbide material needs to be transported to the silo through a belt conveyor for loading. Due to the large amount of dust in the silo, the material level meter 14 may sometimes malfunction, resulting in a silo burst. The calcium carbide material overflows through the belt discharge port after the silo bursts, and the overflowed calcium carbide material falls on the receiving tray 10, which is convenient for centralized cleaning of the overflowed calcium carbide material. At the same time, as the overflowed calcium carbide material continues to increase, the side of the receiving tray 10 close to the counterweight block rotates downward, generating a force of 50N sufficient to pull the emergency stop switch 6, and finally causing the connecting piece 7 to rotate under the action of the iron chain 9, directly pulling the emergency stop switch 6 through the pull rope 8 to stop the belt conveyor immediately and stop loading, thereby reducing the impact of the silo burst on production and reducing the manual cleaning of the overflowed material from the silo burst.

[0019] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A belt emergency stop protection device for preventing a silo from bursting, comprising a belt conveyor, wherein the belt conveyor comprises: A belt (1), a tail wheel (2), a tail housing (3), a material outlet (4), a lower bracket (5) and an emergency stop switch (6), wherein the emergency stop switch (6) is relatively far away from the tail housing (3) and can be closed by pulling a pull rope (8); characterized in that it also includes an emergency stop protection mechanism arranged below the belt conveyor, wherein the emergency stop protection mechanism includes: a connecting piece (7), a pull rope (8), two iron chains (9), a material receiving tray (10), a support seat (11), a plurality of counterweights (12) and a limiting steel bar (13); a connecting piece (7) is rotatably arranged on the lower bracket (5), one end of the connecting piece (7) is connected to the emergency stop switch (6) by a pull rope (8), and the other end of the connecting piece (7) is The material receiving tray (10) is connected to one side of the material receiving tray (10) through an iron chain (9), and the middle part of the bottom of the material receiving tray (10) is rotatably arranged on a support seat (11). The other side of the material receiving tray (10) is connected to the lower surface of the overflow of the tail shell (3) through the iron chain (9). A counterweight (12) is installed below the side of the material receiving tray (10) away from the tail shell (3), so that the material receiving tray (10) can only rotate relative to the lower side of the counterweight (12) as the amount of calcium carbide material increases. A limiting steel bar (13) is also horizontally arranged below the side of the material receiving tray (10) and the lower surface of the material receiving tray (10) can overlap the limiting steel bar (13) after the material receiving tray (10) rotates.

2. The belt emergency stop protection device for preventing a silo from bursting according to claim 1 is characterized in that: The switch action pulling force of the emergency stop switch (6) is 50N.

3. The belt emergency stop protection device for preventing a silo from bursting according to claim 1 is characterized in that: The middle part of the connecting member (7) is rotatably arranged on the lower bracket (5).

4. The belt emergency stop protection device for preventing a silo from bursting according to claim 1 is characterized in that: The receiving tray (10) is in the shape of an inverted triangle when viewed from the side, and is hollow from the inside to the upper surface.

Images