An emergency stop control system for a pellet plant

Abstract

The utility model provides a kind of pellet plant equipment's emergency stop control system, and the system includes: dosing mixing emergency stop module, pelletizing emergency stop module, baking hot air emergency stop module, screening emergency stop module and main control room centralized emergency stop module;Main control room centralized emergency stop module includes: dosing mixing module total emergency stop device, pelletizing module total emergency stop device, baking hot air module total emergency stop device and screening module total emergency stop device;Dosing mixing module total emergency stop device connects every emergency stop device in dosing mixing emergency stop module;Pelletizing module total emergency stop device connects every emergency stop device in pelletizing emergency stop module;Baking hot air module total emergency stop device connects every emergency stop device in baking hot air emergency stop module;Screening module total emergency stop device connects every emergency stop device in screening emergency stop module.The priority of pellet plant according to process flow control is divided into four groups of emergency stop module, and the emergency stop control of each group of emergency stop module is concentrated in main control room, to realize the quick and accurate emergency stop to fault equipment.

Claims

1. An emergency stop control system for pellet plant equipment, characterized in that, The system includes: an emergency stop module for batching and mixing, an emergency stop module for pelletizing, an emergency stop module for roasting hot air, an emergency stop module for screening, and a centralized emergency stop module for the main control room; The main control room centralized emergency stop module includes: a main emergency stop device for the batching and mixing module, a main emergency stop device for the pelletizing module, a main emergency stop device for the roasting hot air module, and a main emergency stop device for the screening module. The main emergency stop device of the ingredient mixing module is connected to each emergency stop device in the ingredient mixing emergency stop module; The main emergency stop device of the pelletizing module is connected to each emergency stop device in the pelletizing emergency stop module; The main emergency stop device of the roasting hot air module is connected to each emergency stop device in the roasting hot air emergency stop module. The main emergency stop device of the screening module is connected to each emergency stop device in the screening emergency stop module.

2. The system according to claim 1, characterized in that, The emergency stop devices in the batching and mixing emergency stop module include: an emergency stop device for the H1 conveyor belt equipment, an emergency stop device for the M1 conveyor belt equipment, an emergency stop device for the quantitative feeder equipment, an emergency stop device for the roller screen and high-pressure roller mill equipment, and an emergency stop device for the mixer equipment. The emergency stop device for the H1 conveyor belt machine is connected to the H1 conveyor belt machine; the emergency stop device for the M1 conveyor belt machine is connected to the M1 conveyor belt machine; the emergency stop device for the quantitative feeder is connected to the quantitative feeder; the emergency stop device for the rotary screen and high-pressure roller mill is connected to the rotary screen and high-pressure roller mill; the emergency stop device for the mixer is connected to the mixer. Correspondingly, the main emergency stop device of the batching and mixing module is connected to the M1 conveyor belt machine, the quantitative feeder, the roller screen and high-pressure roller mill, and the mixer, forming multiple emergency stop control loops.

3. The system according to claim 2, characterized in that, The emergency stop device for the ingredient mixing module includes a safety relay K304; the safety relay K304 is provided with multiple sets of auxiliary contacts; The H1 conveyor belt machine's emergency stop device includes: a safety relay K304.1; The emergency stop device for the M1 conveyor belt machine includes: a safety relay K304.2; The emergency stop device beside the metering feeder includes: a safety relay K304.3; The emergency stop device beside the roller screen and high-pressure roller mill equipment includes: a safety relay K304.5; The emergency stop device for the mixer includes a safety relay K304.

5.

4. The system according to claim 1, characterized in that, The emergency stop device in the pelletizing emergency stop module includes: an emergency stop device for the P1 conveyor belt equipment, an emergency stop device for the P2 to P4 conveyor belt equipment, an emergency stop device for the pelletizing disc equipment, and an emergency stop device for the roller screen equipment. The emergency stop device for the P1 conveyor belt machine is connected to the P1 conveyor belt machine; the emergency stop devices for the P2 to P4 conveyor belt machines are connected to the P2 to P4 conveyor belt machines; the emergency stop device for the pelletizing disc machine is connected to the pelletizing disc machine; and the emergency stop device for the roller screening machine is connected to the roller screening machine. Correspondingly, the ball-forming module's main emergency stop device is connected to the P1 conveyor belt equipment, the P2 to P4 conveyor belt equipment, the ball-forming disc equipment, and the roller screening machine equipment, forming multiple emergency stop control loops.

5. The system according to claim 4, characterized in that, The ball-forming module's main emergency stop device includes: a safety relay K201; the safety relay K201 is equipped with multiple sets of auxiliary contacts; The emergency stop device for the P1 conveyor belt machine includes: a safety relay K201.1; The emergency stop device for the P2 to P4 conveyor belt equipment includes: safety relay K201.2; The emergency stop device for the pelletizing disc equipment includes: a safety relay K201.3; The emergency stop device beside the roller screen includes: safety relay K201.

4.

6. The system according to claim 1, characterized in that, The emergency stop devices in the calcining hot air emergency stop module include: emergency stop devices for L1 conveyor belt and wide conveyor belt equipment, emergency stop devices for L2 and L3 conveyor belt equipment, emergency stop devices for combustion fan equipment, emergency stop devices for roller feeder equipment, emergency stop devices for calcining machine main drive equipment, emergency stop devices for five major process fans equipment, and emergency stop devices for burner equipment. The emergency stop devices for the L1 conveyor belt machine and the wide conveyor belt machine are connected to the L1 conveyor belt machine and the wide conveyor belt machine; the emergency stop devices for the L2 and L3 conveyor belt machines are connected to the L2 and L3 conveyor belt machines; the emergency stop device for the combustion fan machine is connected to the combustion fan machine; the emergency stop device for the roller feeder machine is connected to the roller feeder machine; the emergency stop device for the calciner main drive machine is connected to the calciner main drive machine; the emergency stop devices for the five major process fans are connected to the five major process fans; and the emergency stop device for the burner machine is connected to the burner machine. Correspondingly, the main emergency stop device of the roasting hot air module is connected to the L1 conveyor belt and wide conveyor belt equipment, the L2 and L3 conveyor belt equipment, the combustion fan equipment, the roller feeder equipment, the main drive equipment of the roasting machine and the five major process fans, forming multiple emergency stop control loops.

7. The system according to claim 6, characterized in that, The emergency stop device for the roasting hot air module includes a safety relay K101; the safety relay K101 is provided with multiple sets of auxiliary contacts; The emergency stop device for the L1 conveyor belt machine and wide conveyor belt machine includes: a safety relay K101.1; The emergency stop device for the L2 and L3 conveyor belt machines includes: a safety relay K101.2; The emergency stop device for the combustion fan equipment includes: a safety relay K101.3; The emergency stop device for the roller feeder equipment includes: a safety relay K101.4; The emergency stop device beside the main drive equipment of the roasting machine includes: a safety relay K101.5; The emergency stop device for the five major process fan equipment includes: safety relay K101.6; The burner equipment's on-site emergency stop device includes: a safety relay K101.

7.

8. The system according to claim 1, characterized in that, The emergency stop devices in the screening emergency stop module include: PT1 conveyor belt machine emergency stop device, S3 conveyor belt machine emergency stop device and vibrating screen machine emergency stop device. The PT1 conveyor belt machine's emergency stop device is connected to the PT1 conveyor belt machine; the S3 conveyor belt machine's emergency stop device is connected to the S3 conveyor belt machine; the vibrating screen machine's emergency stop device is connected to the vibrating screen machine. Correspondingly, the main emergency stop device of the screening module is connected to the PT1 conveyor belt equipment, the S3 conveyor belt equipment and the vibrating screen equipment respectively, forming multiple emergency stop control loops.

9. The system according to claim 8, characterized in that, The screening module's emergency stop device includes a safety relay K103; the safety relay K103 is equipped with multiple sets of auxiliary contacts. The PT1 conveyor belt machine's emergency stop device includes: a safety relay K103.1; The S3 conveyor belt machine's emergency stop device includes: a safety relay K103.2; The emergency stop device for the vibrating screen equipment includes a safety relay K103.

3.

10. The system according to any one of claims 1 to 9, characterized in that, The ingredient mixing emergency stop module, the pelletizing emergency stop module, the roasting hot air emergency stop module, and the screening emergency stop module are installed in the production workshop of the pellet plant; The centralized emergency stop module is located in the main control room of the pellet plant.

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