CN216118483U

CN216118483U - Surplus coal single bucket control system

Info

Publication number: CN216118483U
Application number: CN202122236523.4U
Authority: CN
Inventors: 杨金星; 崔金林; 陈永昌; 于庆泉
Original assignee: Angang Steel Co Ltd
Current assignee: Angang Steel Co Ltd
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2022-03-22
Anticipated expiration: 2031-09-15

Abstract

The utility model provides a surplus coal single bucket control system, includes track, steel cable, motor, upper portion hopper, lower part hopper, upper portion fixed pulley, lower part fixed pulley, reel, single bucket dolly install the encoder on the reel axle be equipped with the charge level indicator on the hopper of upper portion, PLC is connected respectively to encoder and charge level indicator, and PLC connects the converter, and the motor is connected to the converter. Compared with the prior art, the utility model has the beneficial effects that: the utility model can successfully control the running speed of the single-bucket trolley, reduces the impact of the trolley and the track when the single-bucket trolley runs to the curved rail, reduces the abrasion of the trolley and the track, prevents the occurrence of the trolley derailment accident, improves the use efficiency of the single bucket, leads the production to be smoother and increases the yield of coke. The upper hopper is additionally provided with the material level meter, so that the phenomenon that the coal powder overflows due to continuous feeding at the full material level is avoided, and the safety of a single hopper is improved.

Description

Surplus coal single bucket control system

Technical Field

The utility model relates to the technical field of coking, in particular to a single-bucket control system for residual coal.

Background

During coking production, a certain amount of residual coal is carried out in the coal leveling process of the coke pusher, the residual coal is collected in a residual coal hopper of the coke pusher, the residual coal hopper needs to be placed in a hopper at the lower part of a single-hopper elevator after the residual coal hopper is filled, when the single-hopper trolley runs to the lower part of a track, a chute nozzle of the lower hopper is opened, the residual coal is loaded into the single-hopper trolley, the single-hopper trolley is conveyed to an upper hopper, then the residual coal is loaded back to the coal pusher for reuse, and when the single-hopper trolley leaves the lower part of the track, the chute nozzle of the lower hopper is automatically closed. The movement of the single-bucket trolley is realized by driving a speed reducer through a motor, the track of the single-bucket trolley is divided into a lower curved rail, a straight rail and an upper curved rail, and the single-bucket trolley ascends and descends along the track. Because the motor adopts the direct start mode, unable speed governing, when the single bucket dolly goes up and down the in-process through the bend, the impact of the dolly of fast moving is great to the track, often takes place the condition that the track warp and the dolly derails, influences the coke pusher and puts the surplus coal, increases the maintenance work load of equipment maintenance personnel simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a single-bucket residual coal control system, which changes the running speed of a motor by changing the control system of the motor of a single-bucket elevator, reduces the speed when a single-bucket trolley enters a curved rail, lightens the impact on the rail, reduces the abrasion of the single-bucket trolley and the rail, prevents the occurrence of trolley derailment accidents, improves the stability of single-bucket residual coal equipment and increases the yield of coke; when the upper hopper is full, the single-hopper trolley is controlled not to ascend, so that the situation that the full material level continues to be fed and pulverized coal is scattered outside the upper hopper is avoided.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a surplus coal single bucket control system, includes track, steel cable, motor, upper portion hopper, lower part hopper, upper portion fixed pulley, lower part fixed pulley, reel, single bucket dolly, upper portion fixed pulley and lower part fixed pulley set up on the track, the steel cable is walked around upper portion fixed pulley and lower part fixed pulley and is connected the reel, the single bucket dolly passes through the steel cable and pulls and walk on the track, the motor drive reel rotates and makes the steel cable twine or extend on the reel install the encoder on the reel be equipped with the charge level indicator on the hopper of upper portion, PLC is do not connected to encoder and charge level indicator, and PLC connects the converter, and the motor is connected to the converter.

The track comprises an upper curved rail, a straight rail and a lower curved rail.

And the lower hopper is provided with a sliding nozzle.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model can successfully control the running speed of the single-bucket trolley, reduces the impact of the trolley and the track when the single-bucket trolley runs to the curved rail, reduces the abrasion of the trolley and the track, prevents the occurrence of the trolley derailment accident, improves the use efficiency of the single bucket, leads the production to be smoother and increases the yield of coke.

The upper hopper is additionally provided with the material level meter, so that the phenomenon that the coal powder overflows due to continuous feeding at the full material level is avoided, and the safety of a single hopper is improved.

Drawings

FIG. 1 is a block diagram of a residual coal single hopper control system according to the present invention;

fig. 2 is an electrical schematic of the present invention.

In the figure: 1. the device comprises a motor, 2, an upper hopper, 3, an upper fixed pulley, 4, a track, 5, a lower fixed pulley, 6, a lower hopper, 7, a single-hopper trolley, 8, a steel rope, 9, a sliding nozzle, 10, a material return pipe, 11 and a winding drum.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

See fig. 1-fig. 2, a surplus coal single bucket control system, including track 4, steel cable 8, motor 1, upper portion hopper 2, lower part hopper 6, upper portion fixed pulley 3, lower part fixed pulley 5, reel 11, single bucket dolly 7, upper portion fixed pulley 3 and lower part fixed pulley 5 set up on track 4, steel cable 8 is walked around upper portion fixed pulley 3 and lower part fixed pulley 5 and is connected reel 11, single bucket dolly 7 is drawn through steel cable 8 and is walked on track 4, motor 1 drive reel 11 rotates and makes steel cable 8 twine or extend on reel 11 epaxial encoder is installed to reel 11, be equipped with the charge level indicator on upper portion hopper 2, PLC is connected to encoder and charge level indicator difference, and PLC connects the converter, and motor 1 is connected to the converter.

The track 4 comprises an upper curved track, a straight track and a lower curved track.

The lower hopper 6 is provided with a spout 9.

An encoder is arranged on the shaft of the winding drum 11 and used for detecting the stroke S of the single-bucket trolley 7 and accessing a PLC system; a material level meter is arranged on the upper hopper 2, and is used for detecting material level signals and accessing a PLC system.

The whole travel of the single-bucket trolley 7 is divided into the following parts:

position S0 (lower start position), position S1 (lower track position), position S2 (upper track position), position S3 (upper stop position), control system workflow:

1. the rising process: the cart is at position S0 → low speed up → reach position S1 → high speed up → reach position S2 → low speed up → reach position S3 → stop;

2. and (3) a descending process: the trolley is in position S3 → descends at low speed → reaches position S2 → descends at high speed → reaches position S1 → descends at low speed → reaches position S0 → stops;

3. when the level indicator sends a full level signal, the single-bucket trolley 7 cannot be started to rise.

Claims

1. The utility model provides a surplus coal single bucket control system, includes track, steel cable, motor, upper portion hopper, lower part hopper, upper portion fixed pulley, lower part fixed pulley, reel, single bucket dolly, upper portion fixed pulley and lower part fixed pulley set up on the track, the steel cable is walked around upper portion fixed pulley and lower part fixed pulley and is connected the reel, the single bucket dolly passes through the steel cable and pulls and walk on the track, motor drive reel rotates and makes the steel cable twine or extend on the reel, its characterized in that install the encoder on the reel be equipped with the charge level indicator on the hopper of upper portion, PLC is connected respectively to encoder and charge level indicator, and PLC connects the converter, and the motor is connected to the converter.

2. The single residual coal bucket control system according to claim 1 wherein said rail includes three portions of an upper curved rail, a straight rail and a lower curved rail.

3. The single residual coal hopper control system according to claim 1, wherein said lower hopper is provided with a chute.