CN114413473B

CN114413473B - Frozen coal online thawing device and method thereof

Info

Publication number: CN114413473B
Application number: CN202210018718.8A
Authority: CN
Inventors: 方明成; 徐涛; 曹辉; 王瑞; 韩清国; 李先超; 孙胜臣; 盖建旺; 刘超
Original assignee: Hua Electricity Qu Dong Electricity Generating Corp Ltds
Current assignee: Hua Electricity Qu Dong Electricity Generating Corp Ltds
Priority date: 2022-01-08
Filing date: 2022-01-08
Publication date: 2023-06-06
Anticipated expiration: 2042-01-08
Also published as: CN114413473A

Abstract

The invention discloses an online thawing device for frozen coal, which comprises a railway track, wherein a rapid thawing area, a carriage heat-preserving area and a reconditioner are arranged above the railway track, the reconditioner is arranged at the end part of the railway track, the reconditioner is close to the carriage heat-preserving area, a steam source pipeline is arranged between the rapid thawing area and the carriage heat-preserving area, a steam source pipeline is arranged in the rapid thawing area, the carriage heat-preserving area comprises a carriage heating heat-preserving shed and a steam heating system, the steam source pipeline is connected with the steam source pipeline, and the steam heating system is connected with the steam source pipeline. The invention realizes the on-line quick thawing of the frozen coal transported by the train in the process of receiving and unloading the train, does not need to wait for the natural thawing of the carriage, does not need to wait for delay, reforms the existing railway track, changes the normal receiving and unloading operation flow of the existing dumper, can automatically operate, has simple and easy operation, is safe and efficient, greatly saves the labor cost, and integrally reduces the production and operation cost.

Description

Frozen coal online thawing device and method thereof

Technical Field

The invention relates to an online thawing device and method for frozen coal, and belongs to the technical field of safe and economic operation of thermal power plants.

Background

When the thermal power plant is transported by using a train, the coal is frozen together with the inner wall of a carriage, and the lower the ambient temperature is, the more serious the freezing phenomenon is due to the fact that the coal contains a certain amount of moisture when the thermal power plant is transported and started.

The train for transporting coal adopts two types of open car carriages and K-shaped hopper carriages, the existing train for transporting coal is not provided with a coal thawing device, more than about one fourth of coal is left in the carriages due to freezing after the open car carriages are dumped by a dumper, tools such as a large hammer, a chisel, a shovel and the like are required to be used for manual cleaning, the inner wall of the carriages is easy to damage in the cleaning process, potential safety hazards exist, and the dumping efficiency is low; the bottom of the K-shaped hopper carriage is provided with a door for unloading, the door for unloading is difficult to open due to freezing, coal near the door for unloading is frozen into a large block, coal is not discharged during unloading, a coal grate of a coal unloading ditch is easy to block, a great deal of time is needed if a large hammer is adopted to strike the door for assisting in unloading or waiting for the carriage to naturally defrost and the like for unloading, the unloading efficiency is reduced, the unloading is easy to delay and overtime, train delay cost can be generated due to overtime of unloading, time and labor are wasted, and the production and operation costs of a thermal power plant are integrally increased.

Therefore, there is an urgent need for a device capable of rapidly thawing frozen coal to solve the above problems.

Disclosure of Invention

The invention aims to provide an on-line thawing device for frozen coal and a method for thawing frozen coal on line, which realize on-line quick thawing of frozen coal transported by a train in the process of receiving and unloading the train, do not need to wait for natural thawing of a carriage, do not need to wait for delay, reform on the existing railway track, change the normal receiving and unloading operation flow of the existing tippler, realize automatic operation, have simple and easy operation, are safe and efficient, greatly save labor cost and integrally reduce production and operation cost.

In order to solve the technical problems, the invention adopts the following technical scheme: the frozen coal online thawing device comprises a railway track, wherein a rapid thawing area, a carriage heat-preserving area and a reconditioner are arranged above the railway track, the reconditioner is arranged at the end part of the railway track and is close to the carriage heat-preserving area, a steam source pipeline is arranged between the rapid thawing area and the carriage heat-preserving area, a steam source pipeline is arranged in the rapid thawing area, the carriage heat-preserving area comprises a carriage heating heat-preserving shed and a steam heating system, the steam source pipeline is connected with the steam source pipeline, and the steam heating system is connected with the steam source pipeline; the on-line quick thawing of the frozen coal transported by the train in the process of receiving and unloading the train is realized, the delay waiting and the change of the normal receiving and unloading operation program of the existing dumper are not needed, the operation is convenient and quick, the safety and the high efficiency are realized, and the labor and the production and operation cost are saved; the carriage heat preservation area is used for timely preserving heat of the carriage after the steam heating thawing, preventing the carriage from being frozen again before the completion of unloading due to the influence of low-temperature environment and middle part frozen coal in the carriage, at least two carriages can be simultaneously contained in the carriage heating heat preservation shed, the carriage is deeply thawed by frozen coal in the carriage in the process of heating the heat preservation shed through the carriage, the generation of large blocks of frozen coal is reduced, the blockage of the coal discharging ditch coal grate is prevented, and the coal discharging efficiency is improved.

The steam source pipeline comprises an A steam supply pipeline and a jet system, the jet system is connected with the steam source pipeline through the A steam supply pipeline, the steam heating system comprises a B steam supply pipeline and a steam heating pipeline, the steam heating pipeline is connected with the steam source pipeline through the B steam supply pipeline, a fin is arranged on a part of the steam heating pipeline, a part of a spray head arranged on the steam heating pipeline is arranged in a carriage heating insulation shed, the jet system comprises an A steam pipeline, a horizontal nozzle component, a B steam pipeline and a vertical nozzle component, the B steam pipeline is connected with the A steam pipeline, the A steam pipeline is connected with the A steam supply pipeline, the horizontal nozzle component is arranged on the A steam pipeline, and the vertical nozzle component is arranged on the B steam pipeline; the horizontal nozzle assembly is adopted, the carriage and the frozen coal are directly heated by utilizing steam, the frozen coal at the edge layer of the carriage and the frozen part of the carriage can be quickly thawed, the thawing efficiency is improved, the vertical nozzle assembly is adopted, the frozen coal at the bottom of the carriage of the K-shaped funnel can be directly heated and thawed by the steam in the unloading door area, the frozen coal is reduced to be large, the unloading efficiency is improved, and the unloading door at the bottom of the carriage of the K-shaped funnel is protected; the vertical nozzle assembly is provided with a stop valve, the control of the state of the vertical nozzle assembly is carried out when the truck carriage passes over the vertical nozzle assembly, the vertical nozzle assembly does not work, and the overheat damage of parts at the bottom of the truck carriage is prevented.

The gas source pipeline further comprises a photoelectric detector group, a controller and an audible and visual alarm, wherein the controller is connected with the A gas supply pipeline, the photoelectric detector group is connected with the controller, and the audible and visual alarm is connected with the controller; the controller has two control modes of manual control and automatic control; in the automatic control mode, a carriage passing signal is collected through a photoelectric detector, and the on-off state of the electromagnetic valve is judged and controlled by utilizing logic, so that automatic control of steam spraying of the steam nozzle is realized, and steam is saved; the manual control can be performed according to actual conditions, and the manual control is safe and reliable; the audible and visual alarm is connected with the controller; before the steam nozzle is put into operation and during steam spraying, alarming and reminding are carried out, personnel are prevented from entering the steam spraying working area by mistake, and the use safety of the device is improved.

In the online thawing device for frozen coal, the other part of the steam heating pipeline which is arranged outside the carriage heating and heat preserving shed is sequentially provided with the pressure gauge, the thermometer and the steam trap, wherein the steam trap is close to the readjuster, and the pressure gauge and the thermometer are both arranged close to the steam supply pipeline B; the steam trap is used for heating the system pipeline before the system is put into operation, so that severe vibration damage of the pipeline steam with water can be effectively prevented; after the system is put into operation and stopped, drain water is carried out on the system pipeline, and the water stored in the pipeline is prevented from being rusted despite the water stored in the pipeline; after the carriage heat preservation area is put into operation, the steam trap ensures the normal flow of steam and steam-water separation in the heat preservation heating pipeline, and the water can be collected and recycled after drainage, so that the water is saved.

The on-line unfreezing device for frozen coal is characterized in that the steam source pipeline is provided with the stop valve A, the steam supply pipeline A is sequentially provided with the stop valve B, the electromagnetic valve and the drain valve A, the controller is connected to the electromagnetic valve, and the steam supply pipeline B is sequentially provided with the stop valve F and the drain valve B.

According to the frozen coal on-line thawing device, the A steam pipeline is provided with the C stop valve, and the B steam pipeline is provided with the E stop valve.

The on-line defrosting device for frozen coal is characterized in that the steam heating pipeline is further provided with a D stop valve, the D stop valve is arranged between the pressure gauge and the B steam supply pipeline, the steam heating pipeline is arranged on the other part outside the carriage heating heat preservation shed, and the C drain valve is arranged at one end close to the steam trap.

In the frozen coal on-line thawing device, the two ends of the carriage heating and heat-preserving shed are provided with heat-preserving curtains; the carriage heating heat preservation shed and the heat preservation curtains on two sides can adopt flexible heat preservation materials, so that heat loss of the heat preservation shed is reduced; the flexible heat-insulating curtains with fixed upper ends are arranged on two sides of the heat-insulating shed along the width direction of the rail, and can be rolled up upwards, so that the work of the unloading inspection and readjusting machine traction arm of the staff is not affected, and the use adaptability is good.

The method for on-line thawing of the frozen coal comprises the following steps:

s1, before a train carriage for transporting frozen coal enters a quick thawing area, starting an audible and visual alarm and overhauling various pipelines and equipment, preventing pipeline vibration damage caused by accumulated water in the pipeline when the accumulated water is vaporized by heating, prompting a worker device to put into operation, preventing the worker from entering an air injection system area by mistake, and ensuring safety;

s2, closing a stop valve C, a stop valve E and a stop valve D, opening a drain valve A and a drain valve B, opening the stop valve A, the stop valve B and the stop valve F, and opening an electromagnetic valve in a manual control mode by a controller to drain a steam supply pipeline A of a quick thawing zone and a steam supply pipeline B of a carriage heat preservation zone; putting the steam trap into the water trap, opening the C steam trap, opening the D stop valve, starting heating in a compartment heat preservation area, and opening the C stop valve to enable the quick thawing area to operate;

s3, adjusting the opening and closing states of the E stop valves according to the types of the railway carriages, and if the railway carriages enter the quick thawing area, keeping the E stop valves in the closing states;

s4, closing the drain valve A and the drain valve B; the opening of the stop valve A is adjusted according to the indication of the pressure gauge and the thermometer; the controller is arranged in an automatic control mode, when the frozen coal train carriage enters the rapid thawing area, the photoelectric detector group sends out corresponding signals when detecting that the frozen coal train carriage passes through, the controller receives the signals, the logic judgment shows that the frozen coal train carriage passes through the rapid thawing area (2), an audible and visual alarm is started, a worker is prompted that the air injection system is put into operation, the electromagnetic valve is controlled to be opened, and the horizontal nozzle component keeps the steam injection state when the open car carriage passes through;

S5, enabling the frozen coal railway carriage passing through the rapid thawing area to enter a carriage heat preservation area for thawing and heat preservation, and pulling the frozen coal railway carriage into a unloading operation program by a reconditioner;

s6, the frozen coal train carriage drives away from the rapid thawing area, the photoelectric detector group detects that the frozen coal-free train carriage passes through and sends out corresponding signals, the controller receives the signals, the frozen coal-free train carriage passes through the rapid thawing area according to logic judgment, the electromagnetic valve is controlled to be closed, the horizontal nozzle assembly and the vertical nozzle assembly stop steam spraying, and the audible and visual alarm stops alarming;

and S7, after the carriage of the all-frozen coal open wagon is frozen, closing the stop valve A, the stop valve B, the stop valve F, the stop valve C, the stop valve D and the stop valve E, opening the drain valve A, the drain valve B and the drain valve C, placing a controller in a manual position to close the electromagnetic valve, and stopping the operation of the quick thawing area and the carriage heat preservation area.

In the method for on-line thawing of frozen coal, if the K-shaped hopper car carriage enters the quick thawing area, the E stop valve is opened, and when the K-shaped hopper car carriage passes through, the horizontal nozzle assembly and the vertical nozzle assembly keep the steam spraying state, so that the frozen coal train carriage is quickly thawed

Compared with the prior art, the invention has the following advantages:

1. According to the invention, the on-line quick thawing of frozen coal transported by the train in the process of receiving and unloading the train is realized, the carriage does not need to be thawed naturally, delay waiting is not needed, the existing railway track is modified, the normal receiving and unloading operation flow of the existing dumper is changed, the automatic operation can be realized, the operation is simple and easy, the safety and the high efficiency are realized, the labor cost is greatly saved, and the production and operation cost is integrally reduced;

2. the invention is provided with a quick thawing area, adopts a horizontal nozzle assembly, utilizes steam to directly heat the carriage and the frozen coal, can quickly thaw the frozen coal at the edge layer of the carriage and the frozen part of the carriage, and improves thawing efficiency;

3. the invention is characterized in that a group of steam nozzles are vertically arranged at the upper part of the middle of the railway track upwards to directly heat and defrost frozen coal in the bottom unloading door area of the K-shaped hopper carriage, thereby reducing the generation of large frozen coal, improving the unloading efficiency and protecting the bottom unloading door of the K-shaped hopper carriage;

4. the carriage heat preservation area provided by the invention can preserve the temperature of the carriage after the steam heating and thawing in time, so that the carriage is prevented from being frozen again before the unloading is completed under the influence of low-temperature environment and the frozen coal in the middle part of the carriage, at least two carriages can be simultaneously accommodated in the carriage heating heat preservation shed, the frozen coal movement in the carriage is deeply thawed in the process that the carriage passes through the carriage heating heat preservation shed, the generation of large blocks of frozen coal is reduced, the blockage of a coal grate of a coal unloading ditch is prevented, and the coal unloading efficiency is improved;

5. The length of at least three carriages is set in the rapid thawing area and the carriage heat-preserving area, when the carriage approaches to the position of the traction arm of the reconditioning machine, normal connection and disconnection operation of the reconditioning machine is not affected when the carriage of the frozen coal open wagon passes through the area, continuous thawing of frozen coal and carriages is realized, and online completion can be realized without stopping and waiting, thereby being convenient and rapid;

6. the photoelectric detector and the controller are arranged in the invention, and the controller has two control modes of manual control and automatic control; in the automatic control mode, a carriage passing signal is collected through a photoelectric detector, the on-off state of the electromagnetic valve is judged and controlled through logic, automatic control of steam spraying of the steam nozzle is realized, and steam is saved; the manual control can be performed according to actual conditions, and the manual control is safe and reliable;

7. in the invention, an audible and visual alarm is arranged around the steam nozzle arrangement frame and is connected with a controller; alarming and reminding are carried out before the steam nozzle is put into operation and during steam spraying, personnel are prevented from entering a steam spraying working area by mistake, and the use safety of the device is improved;

8. according to the invention, the steam pipeline is provided with the drain valve and the drain valve, and the system pipeline is warmed before the system is put into operation, so that severe vibration damage of the pipeline steam with water can be effectively prevented; after the system is put into operation and stopped, drain water is carried out on the system pipeline, and the water stored in the pipeline is prevented from being rusted despite the water stored in the pipeline; after the carriage heat preservation area is put into operation, the steam trap ensures the normal flow of steam and steam-water separation in the heat preservation heating pipeline, and the water can be collected and recycled, so that the water is saved;

9. The equipment is arranged above and at two sides of the railway track, is symmetrically arranged, does not influence the normal passing and connection and disconnection of the train, does not occupy other sites, and has simple structure and easy realization;

10. according to the carriage heating heat-preserving shed and the two side heat-preserving curtains, flexible heat-preserving materials can be adopted, so that heat loss of the heat-preserving shed is reduced; the flexible heat-insulating curtains with fixed upper ends are arranged on two sides of the heat-insulating shed along the width direction of the rail, and can be rolled up upwards, so that the unloading inspection of workers and the work of the traction arm of the readjuster are not influenced, and the use adaptability is good;

11. according to the invention, the fins are arranged on the steam heating pipelines at the two sides of the carriage heating heat preservation shed, so that the heat exchange efficiency of the heating pipelines is high;

12. according to the invention, the two ends of the steam heating pipelines at the two sides of the carriage heating and heat-preserving shed can be connected by adopting the expandable elbow, so that the application range of the device is wide;

13. the quick thawing area and the carriage heat preservation area share one main pipe steam source pipeline, and the quality of the used steam is the same, so that the structure of the invention is simplified;

14. the rapid thawing area and the carriage heat preservation area can be matched for use, and the thawing effect is good; but also can be put into operation independently, has strong adaptability and is convenient for operation control and equipment maintenance.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic view of the structure of the quick thawing area of the present invention;

fig. 3 is a schematic view of the structure of the compartment insulation of the present invention.

Reference numerals: the system comprises a railway track, a 2-quick defrosting zone, a 3-carriage heat preservation zone, a 4-reconditioning machine, a 5-steam source pipeline, a 6-defrosting system, a 7-carriage heating heat preservation shed, an 8-steam heating system, a 9-A steam supply pipeline, a 10-jet system, a 11-B steam supply pipeline, a 12-steam heating pipeline, a 13-fin, a 14-A steam pipeline, a 15-horizontal nozzle assembly, a 16-B steam pipeline, a 17-vertical nozzle assembly, a 18-photoelectric detector group, a 19-controller, a 20-audible and visual alarm, a 21-pressure gauge, a 22-thermometer, a 23-steam trap, a 24-A stop valve, a 25-B stop valve, a 26-electromagnetic valve, a 27-A steam trap, a 28-F stop valve, a 29-B steam trap, a 30-C stop valve, a 31-E stop valve, a 32-D stop valve, a 33-C steam trap and a 34-heat preservation curtain.

The invention is further described below with reference to the drawings and the detailed description.

Detailed Description

Example 1 of the present invention: the utility model provides an online thawing apparatus of frozen coal, includes railway track 1, railway track 1 top is provided with quick thawing zone 2, carriage heat preservation district 3 and retuner 4, retuner 4 is arranged in railway track 1's tip, and retuner 4 is close to carriage heat preservation district 3, be provided with vapour source pipeline 5 between quick thawing zone 2 and carriage heat preservation district 3, be provided with thawing system 6 in the quick thawing zone 2, carriage heat preservation district 3 includes carriage heating thermal-insulation shed 7 and steam heating system 8, thawing system 6 and vapour source pipeline 5 pipe connection, steam heating system 8 and vapour source pipeline 5 pipe connection.

Example 2 of the present invention: the utility model provides a frozen coal on-line defrosting device, includes railway track 1, railway track 1 top is provided with quick defrosting zone 2, carriage heat preservation district 3 and retuner 4, retuner 4 is arranged in railway track 1's tip, and retuner 4 is close to carriage heat preservation district 3, be provided with vapour source pipeline 5 between quick defrosting zone 2 and the carriage heat preservation district 3, be provided with defrosting system 6 in the quick defrosting zone 2, carriage heat preservation district 3 includes carriage heating heat preservation canopy 7 and steam heating system 8, defrosting system 6 is connected with vapour source pipeline 5 pipeline, steam heating system 8 is connected with vapour source pipeline 5 pipeline; the defrosting system 6 comprises an A steam supply pipeline 9 and an air injection system 10, the air injection system 10 is connected with the steam source pipeline 5 through the A steam supply pipeline 9, the steam heating system 8 comprises a B steam supply pipeline 11 and a steam heating pipeline 12, the steam heating pipeline 12 is connected with the steam source pipeline 5 through the B steam supply pipeline 11, a part of the steam heating pipeline 12 is provided with fins 13, a part of the steam heating pipeline 12 provided with the fins 13 is arranged in the carriage heating thermal insulation shed 7, the air injection system 10 comprises an A steam pipeline 14, a horizontal nozzle assembly 15, a B steam pipeline 16 and a vertical nozzle assembly 17, the B steam pipeline 16 is connected with the A steam pipeline 14, the A steam pipeline 14 is connected with the A steam supply pipeline 9, the horizontal nozzle assembly 15 is arranged on the A steam pipeline 14, and the vertical nozzle assembly 17 is arranged on the B steam pipeline 16.

Example 3 of the present invention: the utility model provides a frozen coal on-line defrosting device, includes railway track 1, railway track 1 top is provided with quick defrosting zone 2, carriage heat preservation district 3 and retuner 4, retuner 4 is arranged in railway track 1's tip, and retuner 4 is close to carriage heat preservation district 3, be provided with vapour source pipeline 5 between quick defrosting zone 2 and the carriage heat preservation district 3, be provided with defrosting system 6 in the quick defrosting zone 2, carriage heat preservation district 3 includes carriage heating heat preservation canopy 7 and steam heating system 8, defrosting system 6 is connected with vapour source pipeline 5 pipeline, steam heating system 8 is connected with vapour source pipeline 5 pipeline; the defrosting system 6 comprises an A steam supply pipeline 9 and an air injection system 10, the air injection system 10 is connected with the steam source pipeline 5 through the A steam supply pipeline 9, the steam heating system 8 comprises a B steam supply pipeline 11 and a steam heating pipeline 12, the steam heating pipeline 12 is connected with the steam source pipeline 5 through the B steam supply pipeline 11, a part of the steam heating pipeline 12 is provided with fins 13, a part of the steam heating pipeline 12 provided with the fins 13 is arranged in the carriage heating thermal insulation shed 7, the air injection system 10 comprises an A steam pipeline 14, a horizontal nozzle assembly 15, a B steam pipeline 16 and a vertical nozzle assembly 17, the B steam pipeline 16 is connected with the A steam pipeline 14, the A steam pipeline 14 is connected with the A steam supply pipeline 9, the horizontal nozzle assembly 15 is arranged on the A steam pipeline 14, and the vertical nozzle assembly 17 is arranged on the B steam pipeline 16; the thawing system 6 further comprises a photoelectric detector group 18, a controller 19 and an audible and visual alarm 20, wherein the controller 19 is connected to the A steam supply pipeline 9, the photoelectric detector group 18 is connected to the controller 19, and the audible and visual alarm 20 is connected to the controller 19.

Example 4 of the present invention: the utility model provides a frozen coal on-line defrosting device, includes railway track 1, railway track 1 top is provided with quick defrosting zone 2, carriage heat preservation district 3 and retuner 4, retuner 4 is arranged in railway track 1's tip, and retuner 4 is close to carriage heat preservation district 3, be provided with vapour source pipeline 5 between quick defrosting zone 2 and the carriage heat preservation district 3, be provided with defrosting system 6 in the quick defrosting zone 2, carriage heat preservation district 3 includes carriage heating heat preservation canopy 7 and steam heating system 8, defrosting system 6 is connected with vapour source pipeline 5 pipeline, steam heating system 8 is connected with vapour source pipeline 5 pipeline; the defrosting system 6 comprises an A steam supply pipeline 9 and an air injection system 10, the air injection system 10 is connected with the steam source pipeline 5 through the A steam supply pipeline 9, the steam heating system 8 comprises a B steam supply pipeline 11 and a steam heating pipeline 12, the steam heating pipeline 12 is connected with the steam source pipeline 5 through the B steam supply pipeline 11, a part of the steam heating pipeline 12 is provided with fins 13, a part of the steam heating pipeline 12 provided with the fins 13 is arranged in the carriage heating thermal insulation shed 7, the air injection system 10 comprises an A steam pipeline 14, a horizontal nozzle assembly 15, a B steam pipeline 16 and a vertical nozzle assembly 17, the B steam pipeline 16 is connected with the A steam pipeline 14, the A steam pipeline 14 is connected with the A steam supply pipeline 9, the horizontal nozzle assembly 15 is arranged on the A steam pipeline 14, and the vertical nozzle assembly 17 is arranged on the B steam pipeline 16; the thawing system 6 further comprises a photoelectric detector group 18, a controller 19 and an audible and visual alarm 20, wherein the controller 19 is connected with the A steam supply pipeline 9, the photoelectric detector group 18 is connected with the controller 19, and the audible and visual alarm 20 is connected with the controller 19; the steam heating pipeline 12 is arranged at the other part outside the carriage heating and heat preserving shed 7, and is provided with a pressure gauge 21, a thermometer 22 and a steam trap 23 in sequence, the steam trap 23 is close to the readjuster 4, and the pressure gauge 21 and the thermometer 22 are both arranged close to the B steam supply pipeline 11.

Example 5 of the present invention: the utility model provides a frozen coal on-line defrosting device, includes railway track 1, railway track 1 top is provided with quick defrosting zone 2, carriage heat preservation district 3 and retuner 4, retuner 4 is arranged in railway track 1's tip, and retuner 4 is close to carriage heat preservation district 3, be provided with vapour source pipeline 5 between quick defrosting zone 2 and the carriage heat preservation district 3, be provided with defrosting system 6 in the quick defrosting zone 2, carriage heat preservation district 3 includes carriage heating heat preservation canopy 7 and steam heating system 8, defrosting system 6 is connected with vapour source pipeline 5 pipeline, steam heating system 8 is connected with vapour source pipeline 5 pipeline; the defrosting system 6 comprises an A steam supply pipeline 9 and an air injection system 10, the air injection system 10 is connected with the steam source pipeline 5 through the A steam supply pipeline 9, the steam heating system 8 comprises a B steam supply pipeline 11 and a steam heating pipeline 12, the steam heating pipeline 12 is connected with the steam source pipeline 5 through the B steam supply pipeline 11, a part of the steam heating pipeline 12 is provided with fins 13, a part of the steam heating pipeline 12 provided with the fins 13 is arranged in the carriage heating thermal insulation shed 7, the air injection system 10 comprises an A steam pipeline 14, a horizontal nozzle assembly 15, a B steam pipeline 16 and a vertical nozzle assembly 17, the B steam pipeline 16 is connected with the A steam pipeline 14, the A steam pipeline 14 is connected with the A steam supply pipeline 9, the horizontal nozzle assembly 15 is arranged on the A steam pipeline 14, and the vertical nozzle assembly 17 is arranged on the B steam pipeline 16; the thawing system 6 further comprises a photoelectric detector group 18, a controller 19 and an audible and visual alarm 20, wherein the controller 19 is connected with the A steam supply pipeline 9, the photoelectric detector group 18 is connected with the controller 19, and the audible and visual alarm 20 is connected with the controller 19; the other part of the steam heating pipeline 12, which is arranged outside the carriage heating and heat preserving shed 7, is sequentially provided with a pressure gauge 21, a thermometer 22 and a steam trap 23, wherein the steam trap 23 is close to the readjuster 4, and the pressure gauge 21 and the thermometer 22 are both arranged close to the B steam supply pipeline 11; a stop valve 24 is arranged on the steam source pipeline 5, a stop valve 25, an electromagnetic valve 26 and a drain valve 27 are sequentially arranged on the steam supply pipeline A9, the controller 19 is connected with the electromagnetic valve 26, and an F stop valve 28 and a drain valve 29 are sequentially arranged on the steam supply pipeline B11.

Example 6 of the present invention: the utility model provides a frozen coal on-line defrosting device, includes railway track 1, railway track 1 top is provided with quick defrosting zone 2, carriage heat preservation district 3 and retuner 4, retuner 4 is arranged in railway track 1's tip, and retuner 4 is close to carriage heat preservation district 3, be provided with vapour source pipeline 5 between quick defrosting zone 2 and the carriage heat preservation district 3, be provided with defrosting system 6 in the quick defrosting zone 2, carriage heat preservation district 3 includes carriage heating heat preservation canopy 7 and steam heating system 8, defrosting system 6 is connected with vapour source pipeline 5 pipeline, steam heating system 8 is connected with vapour source pipeline 5 pipeline; the defrosting system 6 comprises an A steam supply pipeline 9 and an air injection system 10, the air injection system 10 is connected with the steam source pipeline 5 through the A steam supply pipeline 9, the steam heating system 8 comprises a B steam supply pipeline 11 and a steam heating pipeline 12, the steam heating pipeline 12 is connected with the steam source pipeline 5 through the B steam supply pipeline 11, a part of the steam heating pipeline 12 is provided with fins 13, a part of the steam heating pipeline 12 provided with the fins 13 is arranged in the carriage heating thermal insulation shed 7, the air injection system 10 comprises an A steam pipeline 14, a horizontal nozzle assembly 15, a B steam pipeline 16 and a vertical nozzle assembly 17, the B steam pipeline 16 is connected with the A steam pipeline 14, the A steam pipeline 14 is connected with the A steam supply pipeline 9, the horizontal nozzle assembly 15 is arranged on the A steam pipeline 14, and the vertical nozzle assembly 17 is arranged on the B steam pipeline 16; the thawing system 6 further comprises a photoelectric detector group 18, a controller 19 and an audible and visual alarm 20, wherein the controller 19 is connected with the A steam supply pipeline 9, the photoelectric detector group 18 is connected with the controller 19, and the audible and visual alarm 20 is connected with the controller 19; the other part of the steam heating pipeline 12, which is arranged outside the carriage heating and heat preserving shed 7, is sequentially provided with a pressure gauge 21, a thermometer 22 and a steam trap 23, wherein the steam trap 23 is close to the readjuster 4, and the pressure gauge 21 and the thermometer 22 are both arranged close to the B steam supply pipeline 11; the steam source pipeline 5 is provided with an A stop valve 24, the A steam supply pipeline 9 is sequentially provided with a B stop valve 25, an electromagnetic valve 26 and an A drain valve 27, the controller 19 is connected with the electromagnetic valve 26, and the B steam supply pipeline 11 is sequentially provided with an F stop valve 28 and a B drain valve 29; a stop valve 30 is arranged on the A steam pipeline 14, and an E stop valve 31 is arranged on the B steam pipeline 16.

Example 7 of the present invention: the utility model provides a frozen coal on-line defrosting device, includes railway track 1, railway track 1 top is provided with quick defrosting zone 2, carriage heat preservation district 3 and retuner 4, retuner 4 is arranged in railway track 1's tip, and retuner 4 is close to carriage heat preservation district 3, be provided with vapour source pipeline 5 between quick defrosting zone 2 and the carriage heat preservation district 3, be provided with defrosting system 6 in the quick defrosting zone 2, carriage heat preservation district 3 includes carriage heating heat preservation canopy 7 and steam heating system 8, defrosting system 6 is connected with vapour source pipeline 5 pipeline, steam heating system 8 is connected with vapour source pipeline 5 pipeline; the defrosting system 6 comprises an A steam supply pipeline 9 and an air injection system 10, the air injection system 10 is connected with the steam source pipeline 5 through the A steam supply pipeline 9, the steam heating system 8 comprises a B steam supply pipeline 11 and a steam heating pipeline 12, the steam heating pipeline 12 is connected with the steam source pipeline 5 through the B steam supply pipeline 11, a part of the steam heating pipeline 12 is provided with fins 13, a part of the steam heating pipeline 12 provided with the fins 13 is arranged in the carriage heating thermal insulation shed 7, the air injection system 10 comprises an A steam pipeline 14, a horizontal nozzle assembly 15, a B steam pipeline 16 and a vertical nozzle assembly 17, the B steam pipeline 16 is connected with the A steam pipeline 14, the A steam pipeline 14 is connected with the A steam supply pipeline 9, the horizontal nozzle assembly 15 is arranged on the A steam pipeline 14, and the vertical nozzle assembly 17 is arranged on the B steam pipeline 16; the thawing system 6 further comprises a photoelectric detector group 18, a controller 19 and an audible and visual alarm 20, wherein the controller 19 is connected with the A steam supply pipeline 9, the photoelectric detector group 18 is connected with the controller 19, and the audible and visual alarm 20 is connected with the controller 19; the other part of the steam heating pipeline 12, which is arranged outside the carriage heating and heat preserving shed 7, is sequentially provided with a pressure gauge 21, a thermometer 22 and a steam trap 23, wherein the steam trap 23 is close to the readjuster 4, and the pressure gauge 21 and the thermometer 22 are both arranged close to the B steam supply pipeline 11; the steam source pipeline 5 is provided with an A stop valve 24, the A steam supply pipeline 9 is sequentially provided with a B stop valve 25, an electromagnetic valve 26 and an A drain valve 27, the controller 19 is connected with the electromagnetic valve 26, and the B steam supply pipeline 11 is sequentially provided with an F stop valve 28 and a B drain valve 29; a C stop valve 30 is arranged on the A steam pipeline 14, and an E stop valve 31 is arranged on the B steam pipeline 16; the steam heating pipeline 12 is also provided with a D stop valve 32, the D stop valve 32 is arranged between the pressure gauge 21 and the B steam supply pipeline 11, the other part of the steam heating pipeline 12 which is arranged outside the carriage heating insulation shed 7 is also provided with a C drain valve 33, and the C drain valve 33 is arranged at one end close to the steam trap 23.

Example 8 of the present invention: the utility model provides a frozen coal on-line defrosting device, includes railway track 1, railway track 1 top is provided with quick defrosting zone 2, carriage heat preservation district 3 and retuner 4, retuner 4 is arranged in railway track 1's tip, and retuner 4 is close to carriage heat preservation district 3, be provided with vapour source pipeline 5 between quick defrosting zone 2 and the carriage heat preservation district 3, be provided with defrosting system 6 in the quick defrosting zone 2, carriage heat preservation district 3 includes carriage heating heat preservation canopy 7 and steam heating system 8, defrosting system 6 is connected with vapour source pipeline 5 pipeline, steam heating system 8 is connected with vapour source pipeline 5 pipeline; the defrosting system 6 comprises an A steam supply pipeline 9 and an air injection system 10, the air injection system 10 is connected with the steam source pipeline 5 through the A steam supply pipeline 9, the steam heating system 8 comprises a B steam supply pipeline 11 and a steam heating pipeline 12, the steam heating pipeline 12 is connected with the steam source pipeline 5 through the B steam supply pipeline 11, a part of the steam heating pipeline 12 is provided with fins 13, a part of the steam heating pipeline 12 provided with the fins 13 is arranged in the carriage heating thermal insulation shed 7, the air injection system 10 comprises an A steam pipeline 14, a horizontal nozzle assembly 15, a B steam pipeline 16 and a vertical nozzle assembly 17, the B steam pipeline 16 is connected with the A steam pipeline 14, the A steam pipeline 14 is connected with the A steam supply pipeline 9, the horizontal nozzle assembly 15 is arranged on the A steam pipeline 14, and the vertical nozzle assembly 17 is arranged on the B steam pipeline 16; the thawing system 6 further comprises a photoelectric detector group 18, a controller 19 and an audible and visual alarm 20, wherein the controller 19 is connected with the A steam supply pipeline 9, the photoelectric detector group 18 is connected with the controller 19, and the audible and visual alarm 20 is connected with the controller 19; the other part of the steam heating pipeline 12, which is arranged outside the carriage heating and heat preserving shed 7, is sequentially provided with a pressure gauge 21, a thermometer 22 and a steam trap 23, wherein the steam trap 23 is close to the readjuster 4, and the pressure gauge 21 and the thermometer 22 are both arranged close to the B steam supply pipeline 11; the steam source pipeline 5 is provided with an A stop valve 24, the A steam supply pipeline 9 is sequentially provided with a B stop valve 25, an electromagnetic valve 26 and an A drain valve 27, the controller 19 is connected with the electromagnetic valve 26, and the B steam supply pipeline 11 is sequentially provided with an F stop valve 28 and a B drain valve 29; a C stop valve 30 is arranged on the A steam pipeline 14, and an E stop valve 31 is arranged on the B steam pipeline 16; the steam heating pipeline 12 is also provided with a D stop valve 32, the D stop valve 32 is arranged between the pressure gauge 21 and the B steam supply pipeline 11, the other part of the steam heating pipeline 12 which is arranged outside the carriage heating insulation shed 7 is also provided with a C drain valve 33, and the C drain valve 33 is arranged at one end close to the steam trap 23; both ends of the carriage heating thermal insulation shed 7 are provided with thermal insulation curtains 34.

s1, before a train carriage for transporting frozen coal enters a quick thawing area 2, starting an audible and visual alarm 20 and checking various pipelines and equipment, preventing pipeline vibration damage caused by accumulated water in the pipelines when the accumulated water is vaporized under heat, prompting a worker that the device is put into operation, preventing the worker from entering an air injection system 10 area by mistake, and ensuring safety;

s2, closing a stop valve 30, a stop valve 31 and a stop valve 32, opening a drain valve 27 and a drain valve 29, opening a stop valve 24, a stop valve 25 and a stop valve 28, and opening an electromagnetic valve 26 in a manual control mode by a controller 19 to drain and warm the steam supply pipeline A9 of the rapid thawing zone 2 and the steam supply pipeline B11 of the carriage heat preservation zone 3; putting the steam trap 23 into the tank, opening the C steam trap 33, opening the D stop valve 32, starting heating the compartment heat preservation area 3, and opening the C stop valve 30 to enable the rapid thawing area 2 to operate;

s3, adjusting the opening and closing state of the E stop valve 31 according to the type of the railway carriage, and if the railway carriage enters the quick thawing area 2 and is an open car carriage, keeping the E stop valve 31 in a closed state;

s4, closing the drain valve A27 and the drain valve B29; according to the instructions of the pressure gauge 21 and the thermometer 22, the opening of the stop valve A24 is adjusted; the controller 19 is arranged in an automatic control mode, when the frozen coal train carriage passes through the quick thawing area 2, the photoelectric detector group 18 sends out corresponding signals, the controller 19 receives the signals, the logic judgment shows that the frozen coal train carriage passes through the quick thawing area 2, the audible and visual alarm 20 is started, the working personnel is prompted that the air injection system 10 is put into operation, the electromagnetic valve 26 is controlled to be opened, and the horizontal nozzle assembly 15 keeps a steam injection state when the open car carriage passes through;

S5, enabling the frozen coal railway carriage passing through the rapid thawing area 2 to enter a carriage heat preservation area 3 for thawing and heat preservation, and pulling the frozen coal railway carriage into a unloading operation program by a reconditioner 4;

s6, the frozen coal train carriage drives away from the rapid thawing area 2, the photoelectric detector group 18 detects that the frozen coal train carriage passes through, and sends out corresponding signals, the controller 19 receives the signals, and according to logic judgment, the frozen coal train carriage is determined to pass through the rapid thawing area 2, the electromagnetic valve 26 is controlled to be closed, the horizontal nozzle assembly 15 and the vertical nozzle assembly 17 stop steam spraying, and the audible and visual annunciator 20 stops alarming;

s7, after the carriage of the all-frozen coal open wagon is frozen, closing the stop valve A24, the stop valve B25, the stop valve F28, the stop valve C30 and the stop valve D32, opening the drain valve A27, the drain valve B29 and the drain valve C33, placing the controller 19 in a manual position to close the electromagnetic valve 26, and stopping the operation of the rapid thawing zone 2 and the carriage heat preservation zone 3.

Example 9 of the present invention: the utility model provides a frozen coal on-line defrosting device, includes railway track 1, railway track 1 top is provided with quick defrosting zone 2, carriage heat preservation district 3 and retuner 4, retuner 4 is arranged in railway track 1's tip, and retuner 4 is close to carriage heat preservation district 3, be provided with vapour source pipeline 5 between quick defrosting zone 2 and the carriage heat preservation district 3, be provided with defrosting system 6 in the quick defrosting zone 2, carriage heat preservation district 3 includes carriage heating heat preservation canopy 7 and steam heating system 8, defrosting system 6 is connected with vapour source pipeline 5 pipeline, steam heating system 8 is connected with vapour source pipeline 5 pipeline; the defrosting system 6 comprises an A steam supply pipeline 9 and an air injection system 10, the air injection system 10 is connected with the steam source pipeline 5 through the A steam supply pipeline 9, the steam heating system 8 comprises a B steam supply pipeline 11 and a steam heating pipeline 12, the steam heating pipeline 12 is connected with the steam source pipeline 5 through the B steam supply pipeline 11, a part of the steam heating pipeline 12 is provided with fins 13, a part of the steam heating pipeline 12 provided with the fins 13 is arranged in the carriage heating thermal insulation shed 7, the air injection system 10 comprises an A steam pipeline 14, a horizontal nozzle assembly 15, a B steam pipeline 16 and a vertical nozzle assembly 17, the B steam pipeline 16 is connected with the A steam pipeline 14, the A steam pipeline 14 is connected with the A steam supply pipeline 9, the horizontal nozzle assembly 15 is arranged on the A steam pipeline 14, and the vertical nozzle assembly 17 is arranged on the B steam pipeline 16; the thawing system 6 further comprises a photoelectric detector group 18, a controller 19 and an audible and visual alarm 20, wherein the controller 19 is connected with the A steam supply pipeline 9, the photoelectric detector group 18 is connected with the controller 19, and the audible and visual alarm 20 is connected with the controller 19; the other part of the steam heating pipeline 12, which is arranged outside the carriage heating and heat preserving shed 7, is sequentially provided with a pressure gauge 21, a thermometer 22 and a steam trap 23, wherein the steam trap 23 is close to the readjuster 4, and the pressure gauge 21 and the thermometer 22 are both arranged close to the B steam supply pipeline 11; the steam source pipeline 5 is provided with an A stop valve 24, the A steam supply pipeline 9 is sequentially provided with a B stop valve 25, an electromagnetic valve 26 and an A drain valve 27, the controller 19 is connected with the electromagnetic valve 26, and the B steam supply pipeline 11 is sequentially provided with an F stop valve 28 and a B drain valve 29; a C stop valve 30 is arranged on the A steam pipeline 14, and an E stop valve 31 is arranged on the B steam pipeline 16; the steam heating pipeline 12 is also provided with a D stop valve 32, the D stop valve 32 is arranged between the pressure gauge 21 and the B steam supply pipeline 11, the other part of the steam heating pipeline 12 which is arranged outside the carriage heating insulation shed 7 is also provided with a C drain valve 33, and the C drain valve 33 is arranged at one end close to the steam trap 23; both ends of the carriage heating thermal insulation shed 7 are provided with thermal insulation curtains 34.

s3, adjusting the on-off state of the E stop valve 31 according to the type of the railway carriage, if the railway carriage enters the quick thawing area 2, the railway carriage is an open car carriage, keeping the E stop valve 31 in a closed state, and if the railway carriage enters the quick thawing area 2, the railway carriage is a K-shaped hopper car carriage, and opening the E stop valve 31;

s4, closing the drain valve A27 and the drain valve B29; the opening of the stop valve 24 is regulated according to the instructions of the pressure gauge 21 and the thermometer 22; the controller 19 is arranged in an automatic control mode, when a frozen coal train carriage passes through the quick thawing area 2, the photoelectric detector group 18 sends out corresponding signals, the controller 19 receives signals, logic judgment shows that the frozen coal train carriage passes through the quick thawing area 2, the audible and visual alarm 20 is started, a worker is prompted that the air injection system 10 is put into operation, the electromagnetic valve 26 is controlled to be opened, the horizontal nozzle assembly 15 keeps a steam spraying state when the open wagon carriage passes through, and the horizontal nozzle assembly 15 and the vertical nozzle assembly 17 keep a steam spraying state when the K-shaped hopper wagon carriage passes through, so that the frozen coal train carriage can be thawed quickly;

Example 10 of the present invention: the utility model provides a frozen coal on-line defrosting device, includes railway track 1, railway track 1 top is provided with quick defrosting zone 2, carriage heat preservation district 3 and retuner 4, retuner 4 is arranged in railway track 1's tip, and retuner 4 is close to carriage heat preservation district 3, be provided with vapour source pipeline 5 between quick defrosting zone 2 and the carriage heat preservation district 3, be provided with defrosting system 6 in the quick defrosting zone 2, carriage heat preservation district 3 includes carriage heating thermal-insulation shed 7 and steam heating system 8, defrosting system 6 is connected with vapour source pipeline 5 pipeline, steam heating system 8 is connected with vapour source pipeline 5 pipeline, defrosting system 6 and steam heating system 8 are provided with a set of at least; the defrosting system 6 comprises an A steam supply pipeline 9 and an air injection system 10, the air injection system 10 is connected with the steam source pipeline 5 through the A steam supply pipeline 9, the steam heating system 8 comprises a B steam supply pipeline 11 and a steam heating pipeline 12, the steam heating pipeline 12 is connected with the steam source pipeline 5 through the B steam supply pipeline 11, a part of the steam heating pipeline 12 is provided with fins 13, a part of the steam heating pipeline 12 provided with the fins 13 is arranged in the carriage heating thermal insulation shed 7, the air injection system 10 comprises an A steam pipeline 14, a horizontal nozzle assembly 15, a B steam pipeline 16 and a vertical nozzle assembly 17, the B steam pipeline 16 is connected with the A steam pipeline 14, the A steam pipeline 14 is connected with the A steam supply pipeline 9, the horizontal nozzle assembly 15 is arranged on the A steam pipeline 14, and the vertical nozzle assembly 17 is arranged on the B steam pipeline 16; the thawing system 6 further comprises a photoelectric detector group 18, a controller 19 and an audible and visual alarm 20, wherein the controller 19 is connected with the A steam supply pipeline 9, the photoelectric detector group 18 is connected with the controller 19, and the audible and visual alarm 20 is connected with the controller 19; the other part of the steam heating pipeline 12, which is arranged outside the carriage heating and heat preserving shed 7, is sequentially provided with a pressure gauge 21, a thermometer 22 and a steam trap 23, wherein the steam trap 23 is close to the readjuster 4, and the pressure gauge 21 and the thermometer 22 are both arranged close to the B steam supply pipeline 11; the steam source pipeline 5 is provided with an A stop valve 24, the A steam supply pipeline 9 is sequentially provided with a B stop valve 25, an electromagnetic valve 26 and an A drain valve 27, the controller 19 is connected with the electromagnetic valve 26, and the B steam supply pipeline 11 is sequentially provided with an F stop valve 28 and a B drain valve 29; a C stop valve 30 is arranged on the A steam pipeline 14, and an E stop valve 31 is arranged on the B steam pipeline 16; the steam heating pipeline 12 is also provided with a D stop valve 32, the D stop valve 32 is arranged between the pressure gauge 21 and the B steam supply pipeline 11, the other part of the steam heating pipeline 12 which is arranged outside the carriage heating insulation shed 7 is also provided with a C drain valve 33, and the C drain valve 33 is arranged at one end close to the steam trap 23; the two ends of the carriage heating thermal insulation shed 7 are provided with thermal insulation curtains 34, and the carriage heating thermal insulation shed 7 and the thermal insulation curtains 34 can be made of flexible thermal insulation materials.

Example 11 of the present invention: the utility model provides a frozen coal on-line defrosting device, includes railway track 1, railway track 1 top is provided with quick defrosting zone 2, carriage heat preservation district 3 and retuner 4, retuner 4 is arranged in railway track 1's tip, and retuner 4 is close to carriage heat preservation district 3, be provided with vapour source pipeline 5 between quick defrosting zone 2 and the carriage heat preservation district 3, be provided with defrosting system 6 in the quick defrosting zone 2, carriage heat preservation district 3 includes carriage heating thermal-insulation shed 7 and steam heating system 8, defrosting system 6 is connected with vapour source pipeline 5 pipeline, steam heating system 8 is connected with vapour source pipeline 5 pipeline, defrosting system 6 and steam heating system 8 are provided with a set of; the defrosting system 6 comprises an A steam supply pipeline 9 and an air injection system 10, the air injection system 10 is connected with the steam source pipeline 5 through the A steam supply pipeline 9, the steam heating system 8 comprises a B steam supply pipeline 11 and a steam heating pipeline 12, the steam heating pipeline 12 is connected with the steam source pipeline 5 through the B steam supply pipeline 11, a part of the steam heating pipeline 12 is provided with fins 13, a part of the steam heating pipeline 12 provided with the fins 13 is arranged in the carriage heating thermal insulation shed 7, the air injection system 10 comprises an A steam pipeline 14, a horizontal nozzle assembly 15, a B steam pipeline 16 and a vertical nozzle assembly 17, the B steam pipeline 16 is connected with the A steam pipeline 14, the A steam pipeline 14 is connected with the A steam supply pipeline 9, the horizontal nozzle assembly 15 is arranged on the A steam pipeline 14, and the vertical nozzle assembly 17 is arranged on the B steam pipeline 16; the thawing system 6 further comprises a photoelectric detector group 18, a controller 19 and an audible and visual alarm 20, wherein the controller 19 is connected with the A steam supply pipeline 9, the photoelectric detector group 18 is connected with the controller 19, and the audible and visual alarm 20 is connected with the controller 19; the other part of the steam heating pipeline 12, which is arranged outside the carriage heating and heat preserving shed 7, is sequentially provided with a pressure gauge 21, a thermometer 22 and a steam trap 23, wherein the steam trap 23 is close to the readjuster 4, and the pressure gauge 21 and the thermometer 22 are both arranged close to the B steam supply pipeline 11; the steam source pipeline 5 is provided with an A stop valve 24, the A steam supply pipeline 9 is sequentially provided with a B stop valve 25, an electromagnetic valve 26 and an A drain valve 27, the controller 19 is connected with the electromagnetic valve 26, and the B steam supply pipeline 11 is sequentially provided with an F stop valve 28 and a B drain valve 29; a C stop valve 30 is arranged on the A steam pipeline 14, and an E stop valve 31 is arranged on the B steam pipeline 16; the steam heating pipeline 12 is also provided with a D stop valve 32, the D stop valve 32 is arranged between the pressure gauge 21 and the B steam supply pipeline 11, the other part of the steam heating pipeline 12 which is arranged outside the carriage heating insulation shed 7 is also provided with a C drain valve 33, and the C drain valve 33 is arranged at one end close to the steam trap 23; the two ends of the carriage heating thermal insulation shed 7 are provided with thermal insulation curtains 34, and the carriage heating thermal insulation shed 7 and the thermal insulation curtains 34 can be made of flexible thermal insulation materials.

Example 12 of the present invention: the utility model provides a frozen coal on-line defrosting device, includes railway track 1, railway track 1 top is provided with quick defrosting zone 2, carriage heat preservation zone 3 and retool machine 4, retool machine 4 is arranged in railway track 1's tip, retool machine 4 is close to carriage heat preservation zone 3, be provided with vapour source pipeline 5 between quick defrosting zone 2 and the carriage heat preservation zone 3, be provided with defrosting system 6 in quick defrosting zone 2, carriage heat preservation zone 3 includes carriage heating thermal-insulation shed 7 and vapour heating system 8, defrosting system 6 is connected with vapour source pipeline 5 pipeline, vapour heating system 8 is connected with vapour source pipeline 5 pipeline, defrosting system 6 and vapour heating system 8 are provided with two sets of, and carriage heating thermal-insulation shed 7 sets up the fixed flexible thermal-insulation curtain in upper end along railway track 1 width direction both sides, and flexible thermal-insulation curtain can upwards roll up and do not influence staff's unloading inspection and the work of retool machine traction arm, use adaptability is good; the defrosting system 6 comprises an A steam supply pipeline 9 and an air injection system 10, the air injection system 10 is connected with the steam source pipeline 5 through the A steam supply pipeline 9, the steam heating system 8 comprises a B steam supply pipeline 11 and a steam heating pipeline 12, the steam heating pipeline 12 is connected with the steam source pipeline 5 through the B steam supply pipeline 11, a part of the steam heating pipeline 12 is provided with fins 13, a part of the steam heating pipeline 12 provided with the fins 13 is arranged in the carriage heating thermal insulation shed 7, the air injection system 10 comprises an A steam pipeline 14, a horizontal nozzle assembly 15, a B steam pipeline 16 and a vertical nozzle assembly 17, the B steam pipeline 16 is connected with the A steam pipeline 14, the A steam pipeline 14 is connected with the A steam supply pipeline 9, the horizontal nozzle assembly 15 is arranged on the A steam pipeline 14, and the vertical nozzle assembly 17 is arranged on the B steam pipeline 16; the thawing system 6 further comprises a photoelectric detector group 18, a controller 19 and an audible and visual alarm 20, wherein the controller 19 is connected with the A steam supply pipeline 9, the photoelectric detector group 18 is connected with the controller 19, and the audible and visual alarm 20 is connected with the controller 19; the other part of the steam heating pipeline 12, which is arranged outside the carriage heating and heat preserving shed 7, is sequentially provided with a pressure gauge 21, a thermometer 22 and a steam trap 23, wherein the steam trap 23 is close to the readjuster 4, and the pressure gauge 21 and the thermometer 22 are both arranged close to the B steam supply pipeline 11; the steam source pipeline 5 is provided with an A stop valve 24, the A steam supply pipeline 9 is sequentially provided with a B stop valve 25, an electromagnetic valve 26 and an A drain valve 27, the controller 19 is connected with the electromagnetic valve 26, and the B steam supply pipeline 11 is sequentially provided with an F stop valve 28 and a B drain valve 29; a C stop valve 30 is arranged on the A steam pipeline 14, and an E stop valve 31 is arranged on the B steam pipeline 16; the steam heating pipeline 12 is also provided with a D stop valve 32, the D stop valve 32 is arranged between the pressure gauge 21 and the B steam supply pipeline 11, the other part of the steam heating pipeline 12 which is arranged outside the carriage heating insulation shed 7 is also provided with a C drain valve 33, and the C drain valve 33 is arranged at one end close to the steam trap 23; the two ends of the carriage heating thermal insulation shed 7 are provided with thermal insulation curtains 34, and the carriage heating thermal insulation shed 7 and the thermal insulation curtains 34 can be made of flexible thermal insulation materials.

The working principle of one embodiment of the invention is as follows: when the invention works, before a train carriage for transporting frozen coal enters the quick thawing area 2, the audible and visual alarm 20 is started and various pipelines and equipment are checked, so that the damage of vaporization vibration after accumulated water in the pipelines is heated is prevented, a worker device is prompted to be put into operation, personnel is prevented from entering the area of the air injection system 10 by mistake, and the safety is ensured; closing the stop valve 30, the stop valve 31 and the stop valve 32, opening the drain valve 27 and the drain valve 29, opening the stop valve 24, the stop valve 25 and the stop valve 28, and opening the electromagnetic valve 26 in a manual control mode by the controller 19 to drain and warm the steam supply pipeline 9 of the quick thawing zone 2 and the steam supply pipeline 11 of the carriage heat preservation zone 3; putting the steam trap 23 into the tank, opening the C steam trap 33, opening the D stop valve 32, starting heating the compartment heat preservation area 3, and opening the C stop valve 30 to enable the rapid thawing area 2 to operate; and (3) adjusting the on-off state of the E stop valve 31 according to the type of the railway carriage, if the railway carriage enters the quick thawing zone 2, keeping the E stop valve 31 in a closed state, and if the railway carriage enters the quick thawing zone 2, opening the E stop valve 31. Closing the drain valve A27 and the drain valve B29; according to the instructions of the pressure gauge 21 and the thermometer 22, the opening of the stop valve A24 is adjusted; the controller 19 is arranged in an automatic control mode, when a frozen coal train carriage passes through the quick thawing area 2, the photoelectric detector group 18 sends out corresponding signals, the controller 19 receives signals, logic judgment shows that the frozen coal train carriage passes through the quick thawing area 2, the audible and visual alarm 20 is started, a worker is prompted that the air injection system 10 is put into operation, the electromagnetic valve 26 is controlled to be opened, the horizontal nozzle assembly 15 keeps a steam spraying state when the open wagon carriage passes through, and the horizontal nozzle assembly 15 and the vertical nozzle assembly 17 keep a steam spraying state when the K-shaped hopper wagon carriage passes through, so that the frozen coal train carriage can be thawed quickly; the frozen coal railway carriage passing through the rapid thawing area 2 enters a carriage heat preservation area 3 for thawing and heat preservation, and is pulled by a reconditioner 4 to enter a unloading operation program; the frozen coal train carriage drives away from the rapid thawing area 2, the photoelectric detector group 18 detects that the frozen coal train carriage passes through, and sends out corresponding signals, the controller 19 receives the signals, and according to logic judgment, the frozen coal train carriage is determined to pass through the rapid thawing area 2, the electromagnetic valve 26 is controlled to be closed, the horizontal nozzle assembly 15 and the vertical nozzle assembly 17 stop steam spraying, and the audible and visual annunciator 20 stops alarming; after all the frozen coal train carriages are frozen, the stop valves A, B, F, C and D24, 25, 28, 30 and 32 are closed, the drain valves A, 29 and 33 are opened, the electromagnetic valve 26 is closed by placing the controller 19 in a manual position, and the operation of the quick thawing zone 2 and the carriage heat-preserving zone 3 is stopped.

Claims

1. The utility model provides a frozen coal on-line defrosting device, includes railway track (1), its characterized in that, railway track (1) top is provided with quick defrosting zone (2), carriage heat preservation district (3) and reconditioner (4), reconditioner (4) are arranged in railway track (1)'s tip, and reconditioner (4) are close to carriage heat preservation district (3), be provided with vapour source pipeline (5) between quick defrosting zone (2) and carriage heat preservation district (3), be provided with defrosting system (6) in quick defrosting zone (2), carriage heat preservation district (3) include carriage heating heat preservation canopy (7) and steam heating system (8), defrosting system (6) are connected with vapour source pipeline (5) pipeline, steam heating system (8) are connected with vapour source pipeline (5) pipeline, vapour supply pipeline (9) and jet system (10) are included A, vapour supply pipeline (9) are connected with vapour source pipeline (5) through A, vapour heating system (8) include vapour supply pipeline (11) and vapour supply pipeline (12) are connected with vapour source pipeline (12) through vapour heating pipeline (12) heating part (13), the part provided with fins (13) on the steam heating pipeline (12) is arranged in the carriage heating heat preservation shed (7), the air injection system (10) comprises an A steam pipeline (14), a horizontal nozzle assembly (15), a B steam pipeline (16) and a vertical nozzle assembly (17), the B steam pipeline (16) is connected with the A steam pipeline (14), the A steam pipeline (14) is connected with the A steam supply pipeline (9), the horizontal nozzle assembly (15) is arranged on the A steam pipeline (14), and the vertical nozzle assembly (17) is arranged on the B steam pipeline (16).

2. The frozen coal on-line thawing device according to claim 1, wherein the thawing system (6) further comprises a photoelectric detector group (18), a controller (19) and an audible and visual alarm (20), the controller (19) is connected to the a steam supply pipeline (9), the photoelectric detector group (18) is connected to the controller (19), and the audible and visual alarm (20) is connected to the controller (19).

3. The online thawing apparatus of frozen coal according to claim 2, wherein the steam heating pipeline (12) is arranged at another part outside the carriage heating and heat preserving shed (7) and is sequentially provided with a pressure gauge (21), a thermometer (22) and a steam trap (23), the steam trap (23) is close to the reconditioner (4), and the pressure gauge (21) and the thermometer (22) are both arranged close to the B steam supply pipeline (11).

4. The frozen coal on-line thawing device according to claim 3, wherein an A stop valve (24) is arranged on the steam source pipeline (5), a B stop valve (25), an electromagnetic valve (26) and an A drain valve (27) are sequentially arranged on the A steam supply pipeline (9), the controller (19) is connected to the electromagnetic valve (26), and an F stop valve (28) and a B drain valve (29) are sequentially arranged on the B steam supply pipeline (11).

5. The online thawing device for frozen coal as recited in claim 4, wherein a C stop valve (30) is arranged on the A steam pipeline (14), and an E stop valve (31) is arranged on the B steam pipeline (16).

6. The online thawing device for frozen coal according to claim 5, wherein the steam heating pipeline (12) is further provided with a D stop valve (32), the D stop valve (32) is arranged between the pressure gauge (21) and the B steam supply pipeline (11), the steam heating pipeline (12) is arranged on the other part outside the carriage heating and heat insulating shed (7), the other part is further provided with a C drain valve (33), and the C drain valve (33) is arranged at one end close to the steam trap (23).

7. The online thawing device for frozen coal as recited in claim 6, wherein heat preservation curtains (34) are arranged at two ends of the carriage heating heat preservation shed (7).

8. The thawing method of the frozen coal on-line thawing device as recited in claim 7, comprising the steps of:

s1, before a train carriage for transporting frozen coal enters a quick thawing area (2), starting an audible and visual alarm (20) and checking various pipelines and equipment, so that the pipeline vibration damage caused by vaporization after accumulated water in the pipeline is heated is prevented, a worker is prompted to put into operation, personnel are prevented from entering an air injection system (10) area by mistake, and safety is ensured;

S2, closing a C stop valve (30), an E stop valve (31) and a D stop valve (32), opening an A drain valve (27) and a B drain valve (29), opening an A stop valve (24), a B stop valve (25) and an F stop valve (28), opening an electromagnetic valve (26) in a manual control mode by a controller (19), and draining water and heating pipes for an A steam supply pipeline (9) of a rapid thawing zone (2) and a B steam supply pipeline (11) of a carriage heat preservation zone (3); putting the steam trap (23), opening a C steam trap (33), opening a D stop valve (32), starting heating the carriage heat preservation area (3), and opening a C stop valve (30) to enable the rapid thawing area (2) to operate;

s3, adjusting the on-off state of the E stop valve (31) according to the type of the railway carriage, and if the railway carriage enters the quick thawing area (2) and is an open car carriage, keeping the E stop valve (31) in a closed state;

s4, closing the drain valve A (27) and the drain valve B (29); the opening degree of the stop valve A (24) is regulated according to the instructions of the pressure gauge (21) and the thermometer (22); the controller (19) is arranged in an automatic control mode, when a frozen coal train carriage enters the rapid thawing area (2), a photoelectric detector group (18) detects that the frozen coal train carriage passes through, a corresponding signal is sent out, the controller (19) receives the signal, logic judges that the frozen coal train carriage passes through the rapid thawing area (2), an audible and visual alarm (20) is started, a worker is prompted that the air injection system (10) is put into operation, an electromagnetic valve (26) is controlled to be opened, and when an open car carriage passes through, a horizontal nozzle assembly (15) keeps a steam injection state;

S5, enabling the frozen coal railway carriage passing through the rapid thawing area (2) to enter a carriage heat preservation area (3) for thawing and heat preservation, and pulling the frozen coal railway carriage into a unloading operation program by a reconditioner (4);

s6, the frozen coal train carriage drives away from the quick thawing area (2), the photoelectric detector group (18) detects that the frozen coal-free train carriage passes through and sends out corresponding signals, the controller (19) receives the signals, and according to logic judgment, the frozen coal-free train carriage is confirmed to pass through the quick thawing area (2), the electromagnetic valve (26) is controlled to be closed, the horizontal nozzle assembly (15) and the vertical nozzle assembly (17) stop steam spraying, and the audible and visual alarm (20) stop alarming;

s7, after the carriage of the all-frozen coal open wagon is frozen, closing an A stop valve (24), a B stop valve (25), an F stop valve (28), a C stop valve (30) and a D stop valve (32), opening an A drain valve (27), a B drain valve (29) and a C drain valve (33), placing a controller (19) at a manual position to close an electromagnetic valve (26), and stopping the operation of the rapid thawing area (2) and the carriage heat preservation area (3).

9. The thawing method of the frozen coal on-line thawing device according to claim 8, wherein if the frozen coal on-line thawing device is driven into the quick thawing area (2) and is a K-shaped hopper car carriage, the E stop valve (31) is opened, and when the K-shaped hopper car carriage passes through, the horizontal nozzle assembly (15) and the vertical nozzle assembly (17) keep a steam spraying state, so that the frozen coal train carriage is thawed quickly.