Method for transporting coke continuously produced by dry quenching furnace

Abstract

The invention belongs to the technical field of continuous production of dry quenching furnaces, and particularly relates to a coke transportation method for continuous production of a dry quenching furnace. Comprising the following steps: (1) mounting a front three-way chute between a dry quenching furnace and a conveying belt conveyor, and mounting a rear three-way chute between the conveying belt conveyor and a stock bin; (2) during normal production, one of the two conveying belt conveyors runs for standby application, one of the two stock bins feeds for standby application, the two dry quenching furnaces discharge coke to the running conveying belt conveyor through a front three-way chute, and the conveying belt conveyors discharge the coke to the stock bin needing feeding through a rear three-way chute; and (3) during line changing transportation, starting the standby belt conveyors in the step (2), and discharging materials to the two belt conveyors at the same time through the front three-way chute. According to the invention, coke discharge is not stopped during line changing transportation, so that continuous operation of production is realized, steam fluctuation of dry quenching is avoided, and influence on dry quenching power generation is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of continuous production of dry quenching coke ovens, and in particular relates to a coke transportation method for continuous production of dry quenching coke ovens. Background Art

[0002] There are two CDQ coke ovens and two material lines on a certain CDQ coke production line. The two material lines are one for backup and one for use. Each material line includes a conveyor belt machine and a material silo connected in sequence. When equipment inspection and maintenance is required or equipment failure maintenance occurs, it is necessary to stop the coke discharge from the two CDQ coke ovens at the same time and then switch to the other material line. Stopping the coke discharge from the CDQ coke ovens will affect the temperature of the CDQ ovens and affect the CDQ power generation. Summary of the invention

[0003] The object of the present invention is to provide a method for transporting coke continuously produced by a dry quenching coke oven to solve the problems existing in the prior art.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A method for transporting coke continuously produced by a dry quenching coke oven comprises the following steps:

[0006] (1) A front three-way chute is installed between the CDQ oven and the conveyor belt conveyor, and a rear three-way chute is installed between the conveyor belt conveyor and the silo;

[0007] (2) During normal production, one of the two conveyor belts is in operation while the other is in standby mode, and one of the two silos is in feeding mode while the other is in standby mode. The two dry quenching coke ovens discharge the coke to the operating conveyor belts through the front three-way chute, and the conveyor belts discharge the coke to the silos that need to be fed through the rear three-way chute;

[0008] (3) When changing the line for transportation, start the spare conveyor belt conveyor in step (2) and discharge the material to the two conveyor belt conveyors simultaneously through the front three-way chute;

[0009] After the material is unloaded normally, the material is unloaded to the conveyor belt conveyor running in step (2) through the front three-way chute;

[0010] (4) When changing the storage bin, the material is discharged to the two silos at the same time through the rear three-way chute. After the material discharge is normal, the material is stopped from being discharged to the silo that needs to be fed in step (2) through the rear three-way chute;

[0011] (5) When the CDQ coke oven is under maintenance, the operation of the CDQ coke oven to be maintained is stopped and another CDQ coke oven is used for production and its discharge capacity is increased.

[0012] Furthermore, the dry quenching coke oven, the conveyor belt conveyor, the silo, the front three-way chute and the rear three-way chute each have two, the front three-way chute and the rear three-way chute each have a feed end and two discharge ends, and gate valves are installed on the two discharge ends of the front three-way chute and the rear three-way chute.

[0013] Furthermore, the two front three-way chutes correspond to the two dry quenching coke ovens respectively, one discharge end of the front three-way chute is connected to a conveyor belt conveyor, and the other discharge end of the front three-way chute is connected to another conveyor belt conveyor.

[0014] Furthermore, the two rear three-way chutes correspond to the two conveyor belt conveyors respectively, one discharge end of the rear three-way chute is connected to a silo, and the other discharge end of the front three-way chute is connected to another silo.

[0015] Furthermore, the front three-way chute discharges or stops discharging materials to the corresponding conveyor belt by opening or closing the gate valve thereon, and the rear three-way chute discharges or stops discharging materials to the corresponding silo by opening or closing the gate valve thereon.

[0016] The present invention has the following beneficial effects:

[0017] 1. The present invention can discharge coke without stopping during line change transportation, thereby realizing continuous production operation, thereby avoiding fluctuations in dry coke quenching steam and avoiding affecting dry coke quenching power generation.

[0018] 2. The present invention can discharge coke without stopping when changing storage bins, thereby achieving continuous production operation, thereby avoiding fluctuations in dry coke quenching steam and avoiding affecting dry coke quenching power generation.

[0019] 3. The present invention provides two conveyor belts, two silos, two front three-way chutes and two rear three-way chutes, thereby forming two material lines, which are used as backup for each other and can be adjusted at any time according to production conditions, thereby ensuring continuous production of coke. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the top structure of the present invention.

[0022] Among them: 1. CDQ coke oven; 2. Conveyor belt conveyor; 3. Front three-way chute; 4. Rear three-way chute; 5. Silo; 6. Gate valve; 7. Material line one; 8. Material line two. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] Embodiment 1:

[0025] This embodiment provides a method for transporting coke continuously produced by a dry quenching coke oven, which is mainly an implementation method of the present invention during normal production.

[0026] like Figure 1-2 As shown, a front three-way chute 3 is installed between the dry quenching coke oven 1 and the conveyor belt 2, and a rear three-way chute 4 is installed between the conveyor belt 2 and the silo 5. The dry quenching coke oven 1, the conveyor belt 2, the silo 5, the front three-way chute 3, and the rear three-way chute 4 are all two, and the front three-way chute 3 and the rear three-way chute each have a feed end and two discharge ends, and gate valves 6 are installed on the two discharge ends of the front three-way chute 3 and the rear three-way chute 4.

[0027] The two front three-way chutes 3 correspond to the two dry quenching coke ovens 1 respectively. One discharge end of the front three-way chute 3 is connected to a conveyor belt conveyor 2, and the other discharge end of the front three-way chute 3 is connected to another conveyor belt conveyor 2.

[0028] The two rear three-way chutes 4 correspond to the two conveyor belt conveyors 2 respectively. One discharge end of the rear three-way chute 4 is connected to a silo 5 , and the other discharge end of the front three-way chute 3 is connected to another silo 5 .

[0029] The front three-way chute 3 discharges or stops discharging materials to the corresponding conveyor belt by opening or closing the gate valve 6 thereon, and the rear three-way chute 4 discharges or stops discharging materials to the corresponding silo 5 by opening or closing the gate valve 6 thereon.

[0030] For the convenience of description, one of the conveyor belt conveyors 2, one silo 5, and one rear three-way chute 4 is set as material line one 7, and the other conveyor belt conveyor 2, silo 5, and rear three-way chute 4 is set as material line two 8.

[0031] During normal production, the conveyor belt 2 in the material line 1 7 is in operation, the conveyor belt 2 in the material line 2 8 is on standby, the silo 5 in the material line 1 7 is fed, and the silo 5 in the material line 2 8 is on standby. After the two dry quenching coke ovens 1 are discharged, the coke enters the two front three-way chutes 3 respectively, the gate valves 6 connected to the material line 1 7 on the two front three-way chutes 3 are opened, and the gate valves 6 connected to the material line 2 8 are closed, so that the coke is discharged to the conveyor belt 2 in the material line 1 7, and the conveyor belt 2 in the material line 1 7 conveys the coke to the corresponding rear three-way chute 4, the gate valve 6 of the rear three-way chute 4 connected to the silo 5 in the material line 1 7 is opened, and the gate valve 6 of the rear three-way chute 4 connected to the silo 5 in the material line 2 8 is closed, so that the coke is conveyed to the silo 5 in the material line 1 7. When the dry quenching coke oven 1 is overhauled, the dry quenching coke oven 1 to be overhauled is stopped, and another dry quenching coke oven 1 is used for production and its displacement is increased.

[0032] In order to ensure smooth coke transportation during the coke discharge process, the dry quenching coke oven 1, the conveyor belt conveyor 2, the material level meter and the gate valve 6 of the silo 5 are electrically interlocked, and the program is set through the PLC controller. The execution logic is: when at least one of the two gate valves 6 on the front three-way chute 3 corresponding to the dry quenching coke oven 1 is opened, and the conveyor belt conveyor 2 corresponding to the opened gate valve 6 on the three-way chute is opened, and at least one of the two gate valves 6 on the rear three-way chute 4 corresponding to the opened conveyor belt conveyor 2 is opened, the dry quenching coke oven 1 will discharge coke at this time, otherwise the coke discharge will be stopped.

[0033] Embodiment 2:

[0034] This embodiment provides a method for transporting coke continuously produced by a dry quenching coke oven. This embodiment is implemented based on Embodiment 1, and is mainly an implementation method of the present invention during line change transportation.

[0035] When it is necessary to change the line for transportation, that is, switch the material line 1 7 to the material line 2 8 for transportation, open the conveying belt conveyor 2 in the material line 2 8, and open the gate valve 6 connecting the two front three-way chutes 3 with the material line 2 8. At this time, the coke is discharged to the material line 1 7 and the material line 2 8 at the same time, and enters the two rear three-way chutes 4 through the two conveying belt conveyors 2, so that the gate valve 6 connecting the two rear three-way chutes 4 with the silo 5 in the material line 2 8 remains open, so that the coke is transported to the silo 5 in the material line 1 7. After the gate valve 6 is actuated and the material is discharged normally, the gate valve 6 connecting the two front three-way chutes 3 with the material line 1 7 is closed, and the gate valves 6 on the rear three-way chutes 4 in the material line 1 7 are all closed. At this time, the coke is only transported through the material line 2 8, thereby completing the line change transportation.

[0036] Embodiment 3:

[0037] This embodiment provides a method for transporting coke continuously produced by a dry quenching coke oven. This embodiment is implemented based on Embodiment 1, and is mainly an implementation method of the present invention during storage during change of storage bins.

[0038] When it is necessary to change the storage bin, that is, switch the bin 5 in material line 1 7 to the bin 5 in material line 2 8 for storage, open the gate valve 6 on the rear three-way chute 4 in material line 1 7 connected with material line 2 8, and discharge materials to the two bins 5 at the same time. After the gate valve 6 is actuated and the discharge is normal, close the gate valve 6 on the rear three-way chute 4 in material line 1 7 connected with material line 1 7, thereby stopping the discharge of materials into the bin 5 in material line 1 7, and switching to discharge materials into the bin 5 in material line 2 8.

[0039] The above embodiments are only for describing the preferred implementation of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary persons in the art to the technical solution of the present invention should fall within the protection scope of the present invention.

[0040] The techniques, shapes, and structural parts not described in detail in the present invention are all well-known techniques.

Claims

1. A method for transporting coke continuously produced by a dry quenching coke oven, characterized in that: The following steps are involved: (1) A front three-way chute is installed between the CDQ oven and the conveyor belt conveyor, and a rear three-way chute is installed between the conveyor belt conveyor and the silo; (2) During normal production, one of the two conveyor belts is in operation while the other is in standby mode, and one of the two silos is in feeding mode while the other is in standby mode. The two dry quenching coke ovens discharge the coke to the operating conveyor belts through the front three-way chute, and the conveyor belts discharge the coke to the silos that need to be fed through the rear three-way chute; (3) When changing the line for transportation, start the spare conveyor belt conveyor in step (2) and discharge the material to the two conveyor belt conveyors simultaneously through the front three-way chute; After the material is unloaded normally, the material is unloaded to the conveyor belt conveyor running in step (2) through the front three-way chute; (4) When changing the storage bin, the material is discharged to the two silos at the same time through the rear three-way chute. After the material discharge is normal, the material is stopped from being discharged to the silo that needs to be fed in step (2) through the rear three-way chute; (5) When the CDQ coke oven is under maintenance, the operation of the CDQ coke oven to be maintained is stopped and another CDQ coke oven is used for production and its discharge capacity is increased.

2. The method for transporting coke continuously produced by a dry quenching coke oven according to claim 1, characterized in that: The dry quenching coke oven, conveyor belt conveyor, silo, front three-way chute and rear three-way chute each have two, the front three-way chute and rear three-way chute each have a feed end and two discharge ends, and gate valves are installed on the two discharge ends of the front three-way chute and rear three-way chute.

3. The method for transporting coke continuously produced by a dry quenching coke oven according to claim 2, characterized in that: The two front three-way chutes correspond to two dry quenching coke ovens respectively, one discharge end of the front three-way chute is connected to a conveyor belt conveyor, and the other discharge end of the front three-way chute is connected to another conveyor belt conveyor.

4. The method for transporting coke continuously produced by a dry quenching coke oven according to claim 3, characterized in that: The two rear three-way chutes correspond to the two conveyor belt conveyors respectively, one discharge end of the rear three-way chute is connected to a silo, and the other discharge end of the front three-way chute is connected to another silo.

5. The method for transporting coke continuously produced by a dry quenching coke oven according to claim 4, characterized in that: The front three-way chute discharges or stops discharging materials to the corresponding conveyor belt by opening or closing the gate valve thereon, and the rear three-way chute discharges or stops discharging materials to the corresponding silo by opening or closing the gate valve thereon.

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