JP2016056310A - Extruder, and method for operating the extruder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an extruder in which the trouble of an observation apparatus at high heat is suppressed, and a method for operating the extruder even when a hose is damaged.SOLUTION: Provided is an extruder composed of: an observation apparatus 3 for observing the conditions in the carbonization chamber of a coke oven; an air pipe line 221 for cooling where air at the outside of a furnace is applied to the observation apparatus 3 and is cooled; a hose 4 in common introducing the air into the air pipe line 221 for cooling and having flexibility; and a temporal hose 6 forming a casual air passage L2 so as to be a bypass to an air passage L1 in common composed so as to include the hose 4 in common, and a method for operating the extruder.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an extruder in which an extrusion ram is arranged to be able to be taken in and out of a carbonization chamber of a coke oven, and an operation method of the extruder.

  Observation equipment such as a camera, furnace width measuring device, temperature measuring device, etc. is installed in the extrusion ram of the extruder in order to observe the carbonization chamber of the coke oven and for example grasp the damage of the wall surface and the carbon adhesion status ( For example, it describes in patent document 1.). The extrusion ram moves back and forth with respect to the carbonization chamber in order to remove the coke that has been carbonized in the carbonization chamber.

  Since the carbonization chamber in operation is at a high temperature of 1000 ° C or higher, when the extrusion ram enters the carbonization chamber, the observation equipment is cooled by applying air outside the furnace so that the observation equipment does not break down due to high heat. ing. Cooling air is supplied by air supply means such as a compressor and an air tank. Although the extrusion ram moves back and forth, since the air supply means is fixed to the main body of the extruder, the air supply means and the extrusion ram are connected by a hose having a sufficient length, and the longitudinal direction of the extrusion ram Absorbs displacement. Note that a steel pipe is attached to the extrusion ram, and the air passing through the hose is caused to flow through the steel pipe to the observation instrument.

Japanese Patent No. 48733962

  The hose may break due to aging or wear. If the hose breaks, air leaks from the hose, and the amount of air supplied through the hose decreases or becomes zero, so the observation equipment installed in the extrusion ram may fail without being cooled sufficiently. If an observation device breaks down, it must be replaced or repaired. However, some devices, such as cameras, are expensive and require delivery, and may require significant costs and time for recovery.

  Even if it is a case where a hose is damaged, this invention makes it a subject to provide the operating method of the extruder and extruder which suppressed that an observation apparatus failed with high heat.

  The present invention relates to an extruder arranged so that an extrusion ram can be taken in and out of a carbonization chamber of a coke oven, and an observation device for observing the condition in the carbonization chamber and a discharge portion are positioned corresponding to the observation device. A cooling air line that cools the observation device by applying air outside the furnace, and a flexible service that is connected to the cooling air line and introduces the air into the cooling air line It is an extruder configured so that a temporary hose that forms a temporary air path serving as a bypass can be connected to a normal air path that includes the hose and the normal hose.

  According to this structure, the temporary hose which forms the temporary air path used as a bypass is connectable with respect to the normal air path comprised including the normal hose. For this reason, even if the supply amount of air passing through the hose decreases or becomes zero due to breakage of the normal hose, a temporary hose is connected to the normal air path to form a temporary air path, thereby Cooling with outside air can be continued.

  Moreover, the temporary hose connection part which can connect the said temporary hose with respect to the said normal air path | route, and the switching valve which switches the said normal air path | route and the said temporary air path | route can also be provided.

  According to this structure, a temporary hose connection part and a switching valve are provided. For this reason, after connecting a temporary hose to a temporary hose connection part, air can be easily passed through a temporary air path by switching a regular air path and a temporary air path with a switching valve.

  The service hose is arranged in parallel with the electrical equipment wiring connected to the observation equipment, and a terminal portion for relaying the electrical air path and the electrical equipment wiring for the equipment respectively. It is provided in the upstream and downstream sides in the air flow direction of the service hose, and the temporary hose connection part can be located on the upstream side and the downstream side of the two terminal parts.

  According to this structure, a temporary hose connection part is located in the upstream and downstream of two terminal parts. For this reason, the temporary hose can be substituted for the full length of the service hose.

  Moreover, the detection part which detects that the air is leaking from the said regular hose and the alerting | reporting part which alert | reports that the said detection part act | operated can also be provided.

  According to this configuration, the detection unit and the notification unit are provided. For this reason, the breakage of the service hose can be quickly grasped, and the time lag for shifting to cooling the observation equipment by connecting the temporary hose can be reduced.

  Further, according to the present invention, when the notification by the notification unit is made, if the extrusion ram is not in a fixed position outside the carbonization chamber, the push ram is moved to a fixed position, and then the prepared temporary hose is moved to the temporary hose. The extruder is characterized in that the switching valve is switched to allow air to pass through the temporary air path after being connected to the connection portion, and then the observation device is cooled with the air passed through the temporary air path. It is an operation method.

  According to this method, when there is a notification by the notification unit, the observation hose is cooled by switching the switching valve after connecting the temporary hose to the temporary hose connection unit. For this reason, even if the supply amount of air in the hose decreases or becomes zero due to breakage of the service hose, the temporary hose is quickly connected to form a temporary air path so that the observation equipment can Cooling with air can be continued with a reduced time lag.

  In the present invention, by connecting a temporary hose to form a temporary air path, it is possible to continue cooling by applying air outside the furnace to the observation equipment. For this reason, even if the service hose is damaged, it is possible to provide an extruder and an operation method of the extruder that suppress the failure of the observation equipment due to high heat.

It is the schematic of a side view which shows the structure and positional relationship of the extruder and coke oven which concern on one Embodiment of this invention, the state which has an extrusion ram in the front position is shown with a broken line, and an extrusion ram is a back position (fixed position) ) Is indicated by a solid line. It is the schematic which shows the structure of the extrusion ram of the same extruder. It is a flowchart at the time of connecting a temporary hose to the same extruder.

  Hereinafter, an extruder according to an embodiment of the present invention will be described.

  In the coke oven, a plurality of combustion chambers for burning fuel and a plurality of carbonization chambers C for carbonizing coal by heat of the combustion chambers are alternately installed in the width direction. As shown in FIG. 1, the extruder 1 includes a main body (not shown) configured to be movable in the furnace width direction with respect to the coking chamber C of the coke oven, for example, along a track laid in front of the coke oven. An extrusion ram 2 is provided that is movable in the front-rear direction (a direction toward and away from the carbonization chamber C, and the approach direction is “front”) with respect to the main body.

  As shown in FIGS. 1 and 2, the extrusion ram 2 includes a ram head 21 on the front side and a ram beam 22 on the rear side. The ram head 21 has a front view shape slightly smaller than the shape of the indoor space of the carbonization chamber C so as not to interfere with the wall surface of the carbonization chamber C when the extrusion ram 2 moves. The ram beam 22 is connected to the rear of the ram head 21 and is formed to extend in the horizontal direction. The ram beam 22 is supported by a roller 23 from below. Thereby, the ram beam 22 is movable in the front-rear direction with respect to the main body of the extruder 1.

  The ram beam 22 is moved in the front-rear direction by the driving means 24. A rack 241 and a pinion 242 are used as the driving means 24. The rack 241 is located on the upper surface of the ram beam 22. On the other hand, the pinion 242 is provided in the main body of the extruder 1 and is driven by a motor and a speed reducer (not shown), and the ram beam 22 can be moved in the front-rear direction according to the rotation amount of the driven pinion 242. .

  As shown in FIG. 1, the extrusion ram 2 configured as described above is disposed so as to be able to be taken in and out of the carbonization chamber C of the coke oven. By driving the driving means 24, the extrusion ram 2 moves forward, and a part of the ram head 21 and the ram beam 22 enter the carbonizing chamber C in which the lid is opened. Then, the ram head 21 pushes the carbonized coke out of the carbonizing chamber C on the opposite side to the extruder 1. The extruded coke is moved to a fire-fighting train via a guide car (not shown), and is carried to a subsequent process.

  As shown in FIG. 2, the ram beam 22 is provided with an observation device 3 for observing the situation inside the carbonization chamber C. Examples of the observation device 3 include a CCD camera 31 that obtains an image of a wall surface, a furnace width measuring device 32 that measures the dimension between the wall surfaces of the carbonizing chamber C, and a temperature measuring device 33 that measures the temperature in the carbonizing chamber C. Other various devices (optical equipment, sensors, etc.) can be used. The temperature measuring device 33 according to the present embodiment is provided at three locations in the extrusion ram 2 including an upper portion (33a), an intermediate portion (33b), and a lower portion (33c).

  The ram beam 22 includes a cooling air pipe 221 made of a steel pipe or the like. The discharge part located at the tip of the cooling air duct 221 is located corresponding to each observation device 3. For this reason, it is possible to cool each observation device 3 by applying air outside the furnace.

  A flexible hose 4 having flexibility is connected to the rear end of the cooling air duct 221. A service air path (main line) L1 is configured including the service hose 4. Air is introduced from the air supply means 51 such as a compressor and an air tank to the base end (end portion far from the extrusion ram 22) of the service hose 4, and air is supplied from the tip to the cooling air pipe 221 on the ram beam 22. Can be introduced. Although the pressure-resistant rubber hose is used for the service hose 4 of this embodiment, various things can be used if it is a hose which is hard to be damaged by air pressure and has flexibility.

  The air supply means 51 is fixed on the main body of the extruder 1. On the other hand, since the extrusion ram 2 moves in the front-rear direction, in order to absorb the displacement of the extrusion ram 2, the service hose 4 has a sufficient length with reference to the state where the extrusion ram 2 has moved forward. Has been. Since the service hose 4 has a sufficient length as described above, the service hose 4 is wound around the winder 52 so as not to be entangled, and is pulled out from the winder 52 as necessary. Has been.

  The service hose 4 is arranged in parallel with the electrical wiring 53 for equipment. As the electrical wiring 53 for equipment, for example, power wiring for supplying power to the observation equipment 3 etc., operation wiring for sending electrical signals for operating the observation equipment 3 etc., data obtained by the observation equipment 3 etc. are extruded. Signal wiring to be sent to the operation room M on the machine 1 and an optical fiber cable to send video data from a camera or the like can be mentioned, but various other wirings can be used. The electrical wiring 53 for equipment can be a composite cable in which a plurality of types of wiring are combined into one. Further, a part of the electrical wiring 53 for equipment can be disposed in the service hose 4. In the present embodiment, when an optical fiber cable is used as the electrical wiring 53 for equipment, this optical fiber cable is arranged in the regular hose 4 and constitutes a composite cable with other wirings constituting the electrical wiring 53 for equipment. Not to be. And the terminal part 54 provided with the pipe connection part and a terminal etc. for respectively relaying the normal air path | route L1 and the electrical wiring 53 for apparatuses is the upstream of the normal hose 4 in the air flow direction (on the main body of the extruder 1). And downstream (on the extrusion ram 2).

  The extruder 1 of this embodiment is comprised so that the temporary hose 6 which forms the temporary air path | route (bypass line) L2 used as a bypass with respect to the regular air path | route L1 can be connected. The temporary hose 6 is a hose that is used temporarily (emergency) when the service hose 4 breaks, and is used to close the service air path L1 and allow air to pass through the service air path L2. That is, the temporary air path L2 includes the temporary hose 6. This temporary hose 6 is attached to the extrusion ram 2 only when necessary. The temporary hose 6 is made of the same material as the regular hose 4 (in addition, the pressure hose 6 may be made of a material different from the regular hose 4 as long as the pressure resistant performance when the temporary hose 6 can be used) is used temporarily. Therefore, the length connects the cooling air duct 221 of the extrusion ram 2 and the air supply means 51 at a fixed position (position indicated by a solid line in FIG. 1) moved rearward from the carbonization chamber C (more Specifically, the length may be sufficient to connect the two terminal portions 54 and 54. Moreover, in this embodiment, it is not made to wind up by the winder 52 like the service hose 4. Further, unlike the regular hose 4, the temporary hose 6 is not provided with electrical wiring for equipment and is used only for flowing air.

  In order to connect the temporary hose 6 to the regular air path L1, the extruder 1 of the present embodiment switches between the temporary hose connection part 71 to which the temporary hose 6 can be connected, the regular air path L1 and the temporary air path L2. And a switching valve 72.

  The temporary hose connection portion 71 is located at two locations, further upstream than the upstream terminal portion 54 and further downstream from the downstream terminal portion 54. In addition, the temporary hose connection part 71 can also be located in each terminal part 54. FIG. Since the full length of the service hose 4 is located between the two terminal portions 54, 54, the temporary hose 6 can be substituted for the full length of the service hose 4 when the service hose 4 is damaged. The temporary hose connection portion 71 is a cooling fixed on the upstream side position of the winder 52, the regular hose 4 and the extrusion ram 2 (ram beam 22) in the regular air path L1 from the air supply means 51 to the observation device 3. Branch portions 73, 73 for branching the air flow into two systems are provided at positions near the base end of the air duct 221 for use, and a temporary hose is provided between the upstream branch portion 73 and the downstream branch portion 73. 6 can be connected. However, the temporary hose 6 is not connected to the temporary hose connection portion 71 located at least on the side of the extrusion ram 2 at the normal time (when the normal hose 4 is not damaged). In the present embodiment, the length of the temporary hose 6 is the minimum length that can be temporarily used when the service hose 4 is broken, and cannot cope with the forward and backward movement of the extrusion ram 2 in a normal state. is there. In addition, about the temporary hose connection part 71 by the side of the main body of the extruder 1, the temporary hose 6 may be always connected, the connection may not be performed, and the temporary hose 6 may be stored separately inside and outside the extruder 1. .

  In the present embodiment, the temporary hose 6 is connected manually. However, for example, an actuator or the like may be installed and the connection may be made automatically. In addition, as a specific connection method of the temporary hose connection portion 71, various connection methods such as a coupler (for example, so-called “bamboo shoot”), a screw, a flange, and the like can be adopted.

  In this embodiment, the winder 52 is installed on the second floor portion of the extruder 1, and the extrusion ram 2 is installed on the first floor portion of the extruder 1. For this reason, in the temporary air path L2, a fixed pipe made of a steel pipe or the like is installed in the main body of the extruder 1 from the branch portion 73 on the winder 52 side to the vicinity of the extrusion ram 2, and the temporary hose connection portion 71 is provided. Is preferably located in the vicinity of the extrusion ram 2 because the necessary length of the temporary hose 6 is shortened, which makes the temporary hose 6 difficult to entangle and easy to handle.

  The switching valve 72 can switch between the normal air path L1 passing through the service hose 4 and the temporary air path L2 passing through the temporary hose 6. As shown in FIG. 2, the switching valve 72 of the present embodiment is adjacent to the branching portion 73 and disposed in each of the air paths L1 and L2 branched into two systems. A three-way valve 73 may be arranged.

  Further, the extruder 1 is provided with a detection unit 81 that detects that air is leaking from the service hose 4 and a notification unit 82 that notifies that the detection unit 81 has been activated. The notification unit 82 is located in the operation chamber M on the extruder 1 in the present embodiment. However, for example, when the extruder 1 is remotely operated, the notification unit 82 may be provided at a position away from the extruder 1. Good.

  The detection part 81 should just be able to detect directly or indirectly that the air is leaking from the service hose 4, and can employ | adopt various structures. For example, an air leak can be detected by installing a pressure sensor in the regular air path L1 and detecting a pressure drop. Moreover, an air leak can be detected by installing a flow meter in the regular air path L1 and detecting a decrease in the flow rate. Moreover, you may detect an air leak by detecting the raise of apparatus temperature with the temperature sensor installed in the camera etc.

  The notification unit 82 only needs to be able to notify the operator of the extruder 1 that the detection unit 81 has been activated (detection of air leakage), and uses various devices such as a liquid crystal display, an LED, and a buzzer. Can do.

  By providing the detection unit 81 and the notification unit 82, an operator or the like can quickly grasp the breakage of the service hose 4, and the time lag for switching to the temporary hose 6 to cool the observation device 3 can be reduced.

  Next, an operation method of the extruder 1 configured as described above will be described. As shown in FIG. 3, during operation (step S1), when there is a notification by the notification unit 82 due to the operation of the detection unit 81 (step S2), the extrusion ram 2 is positioned at a fixed position outside the carbonization chamber C (FIG. 3). 1 is determined (step S3). If the extrusion ram 2 is at the fixed position in step S3, the process proceeds to step S5. On the other hand, when the extrusion ram 2 is not in the fixed position, the extrusion operation from the coking carbonization chamber C is completed to the end, and the extrusion ram 2 is moved to the fixed position (step S4). Since the time taken for step S4 is several tens of seconds and is not so long, the observation device 3 can be moved to a fixed position before it breaks down due to high heat.

  Thereafter, the provisional hose 6 prepared in advance is connected to the provisional hose connection portion 71 (step S5). Then, among the switching valves 72, one that opens and closes the temporary air path (bypass line) L2 is opened (step S6), and one that opens and closes the service air path (main line) L1 is closed (step S7). That is, the switching valve 72 is switched to allow air to pass through the temporary air path L2. Thereafter, the observation device 3 is cooled by the air passed through the temporary air path L2 (step S8). Even after the air path is switched, the electrical wiring 53 for equipment is continuously used.

  Cooling is performed until the observation device 3 is cooled to room temperature, and then the service air path L1 is restored by replacing the service hose 4 and a part (if any) of the device electrical wiring 53 arranged in the service hose 4. To do. When the damage state of the service hose 4 is light, the entire hose is not replaced, and the damaged part of the service hose 4 may be repaired so as not to leak air.

  Here, in the conventional extruder, the compressor constituting the air supply means stops when a power failure occurs, and therefore, a power failure countermeasure has been taken by installing an engine-driven compressor used as a preliminary. However, the actual situation was that no measures were taken against the breakage of the hose. On the other hand, in this embodiment, the temporary hose 6 which forms the temporary air path | route L2 used as a bypass with respect to the normal air path | route L1 comprised including the service hose 4 is comprised so that connection is possible. For this reason, even if the supply amount of air in the hose decreases or becomes zero due to breakage of the service hose 4, the temporary hose 6 is connected to form the temporary air path L <b> 2. Cooling with outside air can be continued. As a result, even if the service hose 4 is damaged, it is possible to suppress the observation device 3 from being damaged due to high heat.

  Although this embodiment is as above-mentioned, the operation method of the extruder which concerns on this invention and an extruder is not limited to the said embodiment, A various change is added in the range which does not deviate from the summary of this invention. be able to.

DESCRIPTION OF SYMBOLS 1 Extruder 2 Extrusion ram 221 Air line for cooling 3 Observation equipment 4 Regular hose 54 Terminal part 6 Temporary hose 71 Temporary hose connection part 72 Switching valve 81 Detection part 82 Notification part C Carbonization chamber L1 Regular air path L2 Temporary air path

Claims (5)

In an extruder arranged so that an extrusion ram can be taken in and out of the coking chamber of the coke oven,
An observation device for observing the condition in the carbonization chamber;
A discharge part is positioned corresponding to the observation device, and a cooling air line that cools the observation device by applying air outside the furnace;
A flexible service hose connected to the cooling air line and introducing the air into the cooling air line;
A temporary hose that forms a temporary air path that serves as a bypass can be connected to a normal air path that includes the normal hose so that the air is supplied to the cooling air line via the temporary hose. An extruder characterized in that it can be introduced.   The extrusion according to claim 1, further comprising: a temporary hose connection portion that can connect the temporary hose to the normal air path; and a switching valve that switches between the normal air path and the temporary air path. Machine. The regular hose is arranged in parallel with the electrical wiring for equipment connected to the observation equipment,
Terminal portions for relaying the normal air path and the electrical wiring for the equipment are provided on the upstream side and the downstream side in the air flow direction of the normal hose,
The extruder according to claim 2, wherein the temporary hose connection part is located further upstream and downstream of the two terminal parts. A detection unit for detecting that air is leaking from the regular hose;
The extruder according to any one of claims 1 to 3, further comprising a notification unit that notifies that the detection unit has been activated. Using the extruder cited in claim 2 or 3 in claim 4,
When there is a notification by the notification unit, if the extrusion ram is not in a fixed position outside the carbonization chamber, move to a fixed position,
Then, after connecting the temporary hose prepared in advance to the temporary hose connection portion, the switching valve is switched to allow air to pass through the temporary air path,
Thereafter, the observation device is cooled by the air passed through the temporary air path.

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