JPS6397521A - Massive solid storage and feed equipment - Google Patents

Abstract

PURPOSE:To aim at the promotion of reduction in both equipment and repair costs and a disposal place through unitization of a silo and a bunker, by charging massive solids conveyed out of a receiving hopper by a conveyor, into the partition wall bunker built in the silo, and making them so as to be fed to its destination from a discharge port at the side. CONSTITUTION:At the time of feeding coal to destination, a silo delivery conveyor 4 and a coal unloading conveyor are automatically started by a low level signal out of a bunker detector LS1. With this operation, the conveyed material prestored in a silo 3 is charged from a silo upper part again, entering the bunker side, and if the quantity comes much in volume, it is overflown, thus it is stored in a lower part of the silo. On the other hand, if a level inside the silo 3 is going to decrement, it is detected by a detector LS2, resupply is carried out from coal receiving equipment at the front stage via a transfer/ coal unloading conveyor 2. And, if a supply comes much and the inside of the silo comes to fullness, it is detected by a detector LS3, and an interlock is assembled so as to automatically stop all coal handling conveyors. Therefore, the silo delivery conveyor 4 is able to reduce both equipment and operating costs for horizontal transferring.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to motor products, to improvements in the structure of coal bunkers and silos for solid fuel supply equipment, and handling devices for the same.

The present invention also applies to 2 solid fuels other than coal, 9 for example.

It can also be applied to storage and supply equipment for petroleum coke, wood chips, etc.

[Conventional technology]

Figure 3 shows an example of a conventional coal storage and supply facility.

In FIG. 3, the coal received in the receiving hopper 2-■ is transported by the transfer/lignite conveyor 2-■ to the silo 2-■, where it is stored.

When supplying coal, the coal is transferred from the lower end of the silo 2-■ to the bunker 2-■ by the unloading conveyor 2-■, and is transported to the bunker 2-■.
It is then supplied to the user.

Here, as a storage facility for 2 coals, the minimum usage amount is 2 ~
A silo 2-■ with a capacity for three days is installed, and in addition to this, a bunker 2-■ with a small capacity (several hours to one day) is placed separately, but generally, the bunker 2-■ They are often located at the same height as silos, as they are installed near where the fuel will be used, and their exhaust ports are restricted in relation to subsequent equipment. Therefore, one or several transfer/lignite conveyors 2-■ were required between the silo 2-■ and the bunker 2-■. In this way, conventionally, the two coals pass through the receiving hopper 2-2, are unloaded by one or several transport/lignite conveyors 2-2, and are required to perform the same function as the conveyor 2-2 again from the lower end of the silo. Transfer/Lignite Conveyor 2-■ There were many cases where conveyor systems were assembled.

[Problem to be solved by the invention]- When the two coal supply bunkers and silos are installed separately like this,
Even if the bunker has a small capacity, a supporting frame is required, and the higher the installation level, the larger the supporting frame.

Furthermore, installation space for the transport/lignite conveyor between the silo and the bunker was also required, which affected the arrangement of other conveyor equipment.

Still, the movement of coal from the silo to the supply bunker requires a device that has the same functionality as the transfer/lignite conveyor from the receiving hopper to the silo.

This conveyor has a special structure, which increases equipment costs and maintenance costs, as well as secondary problems such as environmental deterioration due to falling coal.

[Means for solving problems]

The present invention aims to solve these problems and provide a practically useful storage coal feeding system. In a system for storing and supplying lumped solids such as a conveyor for transporting lumped solids, the supply bunker is built in so as to be in close contact with the outer wall of the silo main body, and the bunker is located at the lowest end and penetrates the outer wall of the silo. With a well-equipped outlet.

A solid lump comprising a conveyor for transferring the lump solid from the receiving hopper to the bunker, and another conveyor for supplying the lump solid discharged from the lower end of the silo body to the middle of the conveyor. It provides storage and supply facilities.

[Effect]

The lumpy solids conveyed by the receiving hopper and the conveyor are charged into the bulkhead bunker built in the silo,
It is supplied to the user through an outlet provided on its side.

Next, when the storage solids in the bunker are full.

It naturally overflows to the edge of the bulkhead and begins to be stored inside the silo itself. The amount stored in the mouth can be determined by level detection, and the supply will be stopped when it is full.

Furthermore, when supplying lump solids to a user, the level in the built-in bunker is detected, and the conveyor from the lower end of the silo transports the solids to the receiving hopper and then to the unloading conveyor for transfer to the silo. By replenishing the lump solids into the bunker, constant supply to the user is possible. Further, this operation can be performed both manually and automatically.

〔Example〕

FIG. 1 is a schematic diagram of a coal storage and supply facility which is an embodiment of the storage and supply facility of the present invention, and FIG. 2 shows a specific operation control mechanism of this embodiment.

In Figure 1, 1 is a receiving hopper that receives coal from trucks, trailers, etc., 2 is a conveyor that transfers coal from the receiving hopper 1 to the built-in bunker, 3 is a silo with a built-in bunker, and 4 is discharged from the bottom end of the silo 3. a conveyor for transferring the coal to the conveyor 2; 5 is a bulkhead forming a bunker; 6
indicates the coal outlet from the built-in bunker.

In Figure 2, level detectors LSI and LS2 are installed at the bottom of the silo and the built-in bunker, respectively, and when coal is being supplied for use, a low level signal from the bunker detector LSI automatically starts the silo unloading compare 4 and lignite conveyor. do. This will remove the items previously stored in the silo.

The water is poured into the upper part of the silo again, and if the amount entering the bunker becomes large, it overflows and is stored in the lower part of the silo. On the other hand, if the level inside the silo decreases, detector LS2
The lignite is detected by the coal receiving equipment in the previous stage (automatically or by an operator's operation), and replenishment is carried out via the lignite conveyor 2. Furthermore, when the interior of the silo with a large amount of supply becomes full, it is detected by the detector LS3, and an interlock is set so that all the coupled conveyors are automatically stopped.

Here, the silo discharging conveyor 4 is a conventional transport/
Unlike lignite conveyors, it does not have any special functions because it transfers horizontally, and it is advantageous in terms of maintenance, making it possible to significantly reduce equipment costs and operating costs.

〔Effect of the invention〕

According to the present invention, the following effects are achieved.

1. By integrating the silo/bunker, there is no need for a support frame for conventional bunker installation, resulting in a significant reduction in equipment costs.

2. Simplification of the conveyor system reduces equipment costs.

This results in a significant reduction in maintenance costs.

3. The combination of silo and bunker requires less space.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram of a coal storage and supply facility that is an embodiment of the present invention, Fig. 2 is a diagram showing a specific operation control mechanism of the embodiment shown in Fig. 1, and Fig. 3 is a diagram of a conventional coal storage and supply facility. Schematic diagram showing an example of supply equipment. 1... Receiving hopper, 2... Transfer/lignite conveyor.

Claims (1)

[Claims] In a system for storing and supplying lumped solids, which includes a receiving hopper, a storage silo, a supply bunker, and a conveyor that connects these and transports the lumped solids, the supply bunker is built into the silo body so as to be in close contact with the outer wall of the silo main body. a discharge port located at the lowest end of the bunker and provided to penetrate the outer wall of the silo; a conveyor for transferring the lumpy solids from the receiving hopper to the bunker; and a conveyor for transporting the lumpy solids discharged from the lower end of the silo body. A storage and supply facility for bulk solids, characterized in that it comprises another conveyor for supplying the solids in the middle of the conveyor.