CN211896788U - Stroke control device of coal supporting bottom plate of coal charging car - Google Patents
Stroke control device of coal supporting bottom plate of coal charging car Download PDFInfo
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- CN211896788U CN211896788U CN202020315528.9U CN202020315528U CN211896788U CN 211896788 U CN211896788 U CN 211896788U CN 202020315528 U CN202020315528 U CN 202020315528U CN 211896788 U CN211896788 U CN 211896788U
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Abstract
The utility model belongs to the technical field of tamping coal charging cars, in particular to a stroke control device of a coal supporting bottom plate of a coal charging car, which comprises a carbonization furnace, a coal charging car track and a coal charging car, wherein a coal pushing device on the coal charging car pushes a tamping-formed briquette on the coal supporting bottom plate in the coal charging car into a corresponding carbonization chamber; add on the coal pushing motor and be equipped with the encoder, hold in the palm the coal bottom plate and have proximity switch along its promotion orbit fixed mounting, be provided with wireless communicator on the coal charging car, the coal charging car outside is provided with wireless receiver, encoder and proximity switch pass through wireless communicator and will hold in the palm coal bottom plate stroke signal transmission for wireless receiver, wireless receiver passes through the coding cable and is connected with remote control center's PLC, the retort is equipped with smoke absorption pipeline and high-pressure ammonia pump, PLC passes through control relay, converter and control cable are connected with high-pressure ammonia pump electricity. The high-pressure ammonia water system is controlled by the linkage of the stroke of the coal supporting bottom plate, so that the technical problem of improper matching of smoking force during coal charging is solved.
Description
Technical Field
The utility model belongs to the technical field of the coal charging car of tamping, concretely relates to coal charging car holds in palm stroke control device of coal bottom plate.
Background
The tamping coal charging car is important coke production equipment in the coal coking industry, the coal charging car is pushed to different strokes in the process of pushing coal cakes into a coking furnace by a coal supporting bottom plate, different amounts of smoke dust overflow, especially when the coal cakes enter 11 meters of a coking chamber, a large amount of smoke dust overflows instantly, a ground station coal charging dust removal device cannot absorb the smoke dust in time, and the environment-friendly requirement of smokeless coal charging cannot be met.
The smoke absorption device of the carbonization furnace is mainly a remote high-pressure ammonia water control system, the negative pressure of a smoke absorption pipeline is adjusted by controlling the ammonia spraying water amount, the original high-pressure ammonia water flow adjustment needs to be carried out through interphone communication, the ammonia spraying water amount is adjusted timely to realize the suction of the smoke absorption pipeline, but as long-distance transmission antenna signals are blocked by a large obstacle, the interphone communication is influenced, and the high-pressure ammonia water adjustment operation has a hysteresis phenomenon; in addition, the ammonia injection water amount is not easy to be accurately controlled by manual operation control, the ammonia injection water amount is less, the smoking capability cannot be kept up to the standard, and a large amount of smoke dust overflows during coal charging operation. The amount of sprayed ammonia water is large, excessive coal powder enters the gas collecting pipe through the ascending pipe due to overlarge suction force, so that pipeline blockage and poor tar and ammonia water separation effect are caused, and the yield of coal tar is reduced.
SUMMERY OF THE UTILITY MODEL
In order to the above situation, the utility model designs a coal charging car holds in the palm stroke control device of coal bottom plate, through this high-pressure aqueous ammonia flow adjustment system of stroke control device coordinated control who holds in the palm the coal bottom plate, solved high-pressure aqueous ammonia adjustment lag well, manual control spouts the ammonia water yield to the accuse accurate inadequately, leads to the improper various problems that bring of smoking device suction size.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the stroke control device of the coal supporting bottom plate of the coal charging car comprises a carbonization furnace, a coal charging car track and the coal charging car, wherein the carbonization furnace comprises a plurality of parallel carbonization chambers, the coal charging car reciprocates on the coal charging car track on one side of the carbonization furnace, and after the coal charging car is parked at a specified position, a coal pushing device on the coal charging car pushes a coal cake formed by tamping on the coal supporting bottom plate in the coal charging car into a corresponding carbonization chamber for high-temperature carbonization; the coal pushing device comprises a coal pushing plate, a coal pushing connecting rod and a coal pushing motor, wherein an encoder is additionally arranged on the coal pushing motor, a plurality of proximity switches are fixedly arranged on one side of a coal supporting base plate along the pushing track of the coal supporting base plate, a wireless communicator is arranged on a coal charging car, a wireless receiver of the wireless communicator is arranged on the outer side of the coal charging car, the encoder and the proximity switches are connected with the wireless communicator through signal cables, the wireless communicator transmits stroke signals of the coal supporting base plate to the wireless receiver in a wireless mode, the wireless receiver is electrically connected with a PLC (programmable logic controller) of a remote control center through encoding cables, a smoke absorbing pipeline is arranged above the carbonization furnace, one end, far away from the carbonization furnace, of the smoke absorbing pipeline is provided with a high-pressure ammonia pump, and the PLC is electrically connected with the high-pressure ammonia pump through a control relay.
Preferably, the amount of ammonia water sprayed by the high-pressure ammonia water pump is automatically adjusted in time along with the detected stroke of the coal supporting bottom plate.
Preferably, the PLC is connected to a monitoring computer of the remote control center through an industrial ethernet, and the monitoring computer is incorporated into the enterprise lan through a network card.
The whole system consists of a plurality of computers, wherein the computers comprise an industrial control computer, a plurality of PLCs, modules and the like. The computers of the above parts are connected into a whole through data communication, and the system can be merged into an enterprise local area network through a network card.
The induction wireless technology adopts a special coding cable compiled according to a certain rule, and two problems of data communication and position detection of the mobile locomotive are successfully solved: data communication and position detection. The induction wireless technology is deeply researched, and the PLC and the induction wireless technology are combined together
For data communication between a mobile locomotive and a central control room, the wired communication mode has the defects that a cable is inconvenient to drag, and a slip ring generates spark interference; the wireless communication mode is greatly influenced by environmental factors, such as thunder, rain, wind and absorption shielding of a steel mesh framework of a coke oven, the misoperation rate is high, and field debugging is difficult.
The induction wireless data communication is a novel communication mode between the wired communication and the wireless communication, realizes the data communication by the electromagnetic induction of 5-20cm between an induction antenna arranged on a mobile locomotive and a coded cable arranged along the track of the locomotive, and ensures the reliability of the communication quality because the wireless communication distance is only 5-20 cm; but also ensures the flexibility of locomotive movement.
Because the high-pressure ammonia water pump slowly rises when being started, the current is smoothly increased, and the amplification time can be set according to the actual situation, the defects that the starting current is large in the original control mode, the air switch is caused, the arc discharge of a contactor is serious, and the mechanical instant hard impact occurs are overcome, and the serious leakage condition caused by the long-term high pressure building of the pump body before the transformation is also overcome, so the service life of the equipment is greatly prolonged.
The flow of the high-pressure ammonia water pump is saved to be in direct proportion to the rotating speed, the pressure is in direct proportion to the square of the rotating speed, the required shaft power is in direct proportion to the third power of the rotating speed, the stroke of the coal supporting bottom plate is adopted to accurately adjust the speed, the energy-saving loss is greatly reduced, and a certain amount of electric energy loss is saved under the condition of meeting the normal technological requirements.
After the smokeless coal charging of the coke oven is controlled, the space environment is obviously improved, the SO2 content in the air is greatly reduced, the harm of atmospheric pollution to the body of workers is reduced, and the enterprise benefit is indirectly improved.
The utility model discloses still including other subassemblies that can make its normal use, be the conventional technical means in this field, in addition, the utility model discloses in add device or the subassembly of injecing, all adopt the conventional setting in this field.
The utility model has the advantages as follows:
1. the stroke control of the coal supporting bottom plate adopts a wireless communication technology and combines a cable transmission facility to realize the reliability of signal transmission closed-loop control, and the problems that the high-pressure ammonia water adjustment operation hysteresis phenomenon is caused due to the influence of the original communication antenna signal through a remote interphone and smoke dust is excessive when coal is charged due to untimely smoking are avoided.
2. The PLC controls the ammonia injection amount more accurately, and the problems that the smoke absorbing capacity cannot follow up due to too much and too little ammonia injection amount control and too late and too early action time, a large amount of smoke overflows during coal charging operation, or too large suction force is caused, and excessive coal powder enters a gas collecting pipe to influence the yield of coal tar are solved.
3. The workload of a coal charging car driver and chemical product center control is reduced, remote monitoring and control are realized, misoperation is avoided, equipment faults are reduced, electric energy loss is saved, working efficiency is improved, economic benefits are increased, the space environment is obviously improved, and harm of atmospheric pollution to the body of workers is reduced.
Drawings
FIG. 1 is a schematic structural diagram of a stroke control device of a coal supporting bottom plate of a coal charging car in the embodiment.
Detailed Description
The technical solution of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments.
Examples
As shown in fig. 1, the stroke control device of the coal supporting bottom plate of the coal charging car comprises a carbonization furnace 1, a coal charging car track 2 and a coal charging car 3, wherein the carbonization furnace 1 comprises a plurality of parallel carbonization chambers 4, the coal charging car 3 runs on the coal charging car track 2 on one side of the carbonization furnace 1 in a reciprocating manner, and after the coal charging car stops at a specified position, a coal pushing device 7 on the coal charging car 3 pushes a coal cake 6 formed by tamping on the coal supporting bottom plate 5 in the coal charging car 3 into the corresponding carbonization chamber 4 for high-temperature carbonization; the coal pushing device 7 comprises a coal pushing plate 71, a coal pushing connecting rod 72 and a coal pushing motor 73, wherein an encoder 74 is additionally arranged on the coal pushing motor 73, a plurality of proximity switches 51 are fixedly arranged on one side of a coal supporting base plate 5 along the pushing track of the coal supporting base plate, a wireless communicator 31 is arranged on the coal charging car 3, a wireless receiver 32 matched with the wireless communicator 31 is arranged on the outer side of the coal charging car 3, the encoder 74 and the proximity switches 51 are electrically connected with the wireless communicator 31 through signal cables 52, the wireless communicator 31 wirelessly transmits stroke signals of the coal supporting base plate 5 to the wireless receiver 32, the wireless receiver 32 is electrically connected with a PLC8 of a remote control center through encoding cables 33, a smoke absorbing pipeline 11 is arranged above the carbonization furnace 1, a high-pressure ammonia pump 10 is arranged at one end, far away from the carbonization furnace 1, of the PLC8 is connected with a control relay 9, The frequency converter 12 and the control cable 13 are electrically connected with the high-pressure ammonia pump 10.
The amount of ammonia water sprayed by the high-pressure ammonia water pump 10 is automatically adjusted in time along with the detected stroke of the coal supporting bottom plate 5. The flow of the high-pressure ammonia water pump 10 is saved in direct proportion to the rotating speed, the pressure is saved in direct proportion to the square of the rotating speed, the required shaft power is saved in direct proportion to the third power of the rotating speed, the travel of the coal supporting bottom plate 5 is used for accurately adjusting the speed, and the energy-saving loss is greatly reduced.
The PLC8 is connected with a monitoring computer of a remote control center through an industrial Ethernet, and the monitoring computer is merged into an enterprise local area network through a network card, so that remote monitoring and control are realized, misoperation is avoided, equipment failure is reduced, electric energy loss is saved, working efficiency is improved, and economic benefit is increased.
The technical solution of the present invention is not limited to the above-mentioned specific embodiments, and many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.
Claims (3)
1. Coal charging car holds in palm stroke controlling means of coal bottom plate, including retort (1), coal charging car track (2) and coal charging car (3), its characterized in that: the carbonization furnace (1) comprises a plurality of parallel carbonization chambers (4), the coal charging car (3) runs on a coal charging car track (2) on one side of the carbonization furnace (1) in a reciprocating manner, and after the coal charging car is parked at a designated position, a coal pushing device (7) on the coal charging car (3) pushes a coal cake (6) which is formed by tamping on a coal supporting bottom plate (5) in the coal charging car (3) into the corresponding carbonization chamber (4) for high-temperature carbonization; the coal pushing device (7) comprises a coal pushing plate (71), a coal pushing connecting rod (72) and a coal pushing motor (73), wherein an encoder (74) is additionally arranged on the coal pushing motor (73), a plurality of proximity switches (51) are fixedly arranged on one side of the coal supporting base plate (5) along the pushing track of the coal supporting base plate, a wireless communicator (31) is arranged on the coal charging car (3), a wireless receiver (32) matched with the wireless communicator (31) is arranged on the outer side of the coal charging car (3), the encoder (74) and the proximity switches (51) are electrically connected with the wireless communicator (31) through signal cables (52), the wireless communicator (31) wirelessly transmits stroke signals of the coal supporting base plate (5) to the wireless receiver (32), the wireless receiver (32) is electrically connected with a PLC (8) of a remote control center through an encoding cable (33), a smoke absorbing pipe (11) is arranged above the carbonization furnace (1), one end of the smoke absorbing pipeline (11) far away from the carbonization furnace (1) is provided with a high-pressure ammonia water pump (10), and the PLC (8) is electrically connected with the high-pressure ammonia water pump (10) through a control relay (9), a frequency converter (12) and a control cable (13).
2. The stroke control device of the coal supporting bottom plate of the coal charging car according to claim 1, characterized in that: the amount of ammonia water sprayed by the high-pressure ammonia water pump (10) is automatically adjusted in time along with the detected stroke of the coal supporting bottom plate (5).
3. The stroke control device of the coal supporting bottom plate of the coal charging car according to claim 1, characterized in that: the PLC (8) is connected with a monitoring computer of a remote control center through an industrial Ethernet, and the monitoring computer is merged into an enterprise local area network through a network card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020315528.9U CN211896788U (en) | 2020-03-14 | 2020-03-14 | Stroke control device of coal supporting bottom plate of coal charging car |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020315528.9U CN211896788U (en) | 2020-03-14 | 2020-03-14 | Stroke control device of coal supporting bottom plate of coal charging car |
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| CN211896788U true CN211896788U (en) | 2020-11-10 |
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| CN202020315528.9U Active CN211896788U (en) | 2020-03-14 | 2020-03-14 | Stroke control device of coal supporting bottom plate of coal charging car |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115109603A (en) * | 2021-03-23 | 2022-09-27 | 上海梅山钢铁股份有限公司 | Coal discharge control method for safety coal tower of coke oven |
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2020
- 2020-03-14 CN CN202020315528.9U patent/CN211896788U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115109603A (en) * | 2021-03-23 | 2022-09-27 | 上海梅山钢铁股份有限公司 | Coal discharge control method for safety coal tower of coke oven |
| CN115109603B (en) * | 2021-03-23 | 2024-06-04 | 上海梅山钢铁股份有限公司 | Coal discharging control method for coke oven safety molded coal tower |
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