JP2014094991A - Door cleaner of coke oven - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door cleaner of a coke oven which can reduce running cost and failure rate and can remove affix of an internal upper part, a side part and a lower part of a furnace cover.SOLUTION: A door cleaner 10 of a coke oven comprises: a move carriage 15 moving to a vertical direction along an inner face of a furnace cover 11 being removed from a throat and standing on a placing point on a coke oven working vehicle; a first fitting shaft 16 and a second fitting shaft 17 which is comprised to both of right and left sides of the move carriage 15 and a central axis direction is at right angles to the inner face of the standing furnace cover 11; a first arm member 18 and a second arm member 19 attached to the first fitting shaft 16 and the second fitting shaft 17 rotatably; driving means 20 connecting the first arm member 18 and the second arm member 19, and synchronizing and making the first arm member 18 and the second arm member 19 rotating symmetrically each other; and blowout nozzle means 21, 21a, 22 and 22a provided at tips of the first arm member 18 and the second arm member 19 respectively, and removing affix by jetting high pressure water to the affix of a gas canal 12 and the side of a refractory member 13.

Description

The present invention is a tar provided on a coke oven working vehicle (a coke oven extruder or a guide vehicle) and attached to the inner surface of the furnace lid (the side of the gas passage and the refractory member) attached to each coking chamber of the coke oven. The present invention relates to a coke oven door cleaner that removes (cleans) such deposits.

In each coking chamber of the coke oven, gas containing tar components is generated during operation, and part of the generated gas is externally exposed through the gaps between the furnace lids attached to the furnace ports on the extrusion side and discharge side of the carbonization chamber. Leak out. When the gas passes through the gap with the furnace lid, the gas is cooled, and the tar component in the gas becomes tar and adheres to the inner surface of the furnace lid. Then, when the adhesion of tar to the furnace lid proceeds, and dust such as carbon powder further adheres to the adhered tar and the thickness increases, the sealing performance of the furnace port by the furnace lid is reduced, and the carbonization chamber As a result, the leakage of gas from the furnace becomes more prominent, and air enters into the carbonization chamber during operation, causing problems in the operation of the coke oven. Therefore, when the furnace lid is removed in order to discharge the red hot coke from the carbonization chamber, the inner surface of the furnace lid (that is, the gas passage and the gas passage formed in an annular shape along the outer peripheral portion of the inner surface of the outer metal fitting of the furnace lid). A coke oven working vehicle is provided with a door cleaner that ejects high-pressure water, for example, to deposits on the refractory brick portion protruding from the inner side and provided on the outer hardware.

Here, the removal of deposits adhering to the furnace lid must be performed within a limited time from the opening of the furnace opening and the start of extrusion of red hot coke until the discharge of red hot coke is completed. is there. For this reason, the door cleaner includes, for example, an upper surface cleaner that removes deposits on the upper side of the inner surface of the furnace lid, and a side cleaner that removes deposits on the side portions of the inner surface of the furnace lid (see, for example, Patent Document 1). The lower surface cleaner (see, for example, Patent Document 2) that removes deposits on the lower side of the inner surface of the furnace lid is configured.

Japanese Utility Model Publication No. 60-165445 JP 59-108086 A

However, since the furnace door cleaner is composed of three devices, an upper surface cleaner, a side surface cleaner, and a lower surface cleaner, there is a problem that a lot of time is required for maintenance of each cleaner. In addition, since each cleaner is equipped with a moving means and a means for removing deposits, the number of parts for the door cleaner as a whole increases, so purchasing costs for parts to be stored as spares, securing storage locations, grasping inventory status, etc. There is also a problem that the management burden increases. And on the lower side of the coke oven working vehicle where the lower surface cleaner is installed, it becomes a bad environment due to scattering of water sprinkled during coke oven operation, accumulation of dust generated by coke oven operation, etc. There is a problem that the corrosion deterioration of each used device is severe and the device malfunctions easily. Furthermore, since the upper and lower surface cleaners move along horizontal guides arranged at different height positions on the coke oven work vehicle, the upper and lower surface cleaners are changed according to the adhesion range of the deposit on the inner surface of the furnace lid. Changing the operating range in the vertical direction requires mechanical position adjustment of the horizontal guide. For this reason, there is a problem that the operating range in the vertical direction of the upper and lower cleaners cannot be changed according to the adhesion range of the deposit on the inner surface of the furnace lid.

The present invention has been made in view of such circumstances, and reduces the equipment cost, operation cost, maintenance management cost and failure rate, and removes the deposits on the upper, side and lower portions of the inner surface of the furnace lid with a single unit. An object is to provide a possible coke oven door cleaner.

A coke oven door cleaner according to the present invention that meets the above object is provided in a coke oven working vehicle that travels along the longitudinal direction of the coke oven on the extrusion side or discharge side of the coke oven, and a plurality of carbonizations of the coke oven are provided. A gas passage formed in an annular shape along the outer peripheral portion of the inner surface of the outer metal fitting of the furnace lid attached to the furnace port provided at each end of the chamber, and provided on the outer hardware protruding from the inner side of the gas passage. A coke oven door cleaner that removes deposits attached to the sides of the refractory member,
A movable carriage that is provided in the coke oven working vehicle and moves up and down along the inner surface of the furnace lid that is removed from the furnace port and is erected at a preset placement place on the coke oven working vehicle. When,
First and second mounting shafts that are provided on both the left and right sides of the movable carriage and whose respective axial directions are perpendicular to the inner surface of the furnace lid that is erected at the above-described installation place;
First and second arm members rotatably attached to the first and second attachment shafts;
Drive means for connecting the first and second arm members and rotating the first and second arm members synchronously and symmetrically;
A jet nozzle means provided on the front side of each of the first and second arm members, for spraying high pressure water on the deposits adhered to the gas passages and the side portions of the refractory member to remove the deposits. And have.
Here, to synchronize and rotate the first and second arm members in synchronization with each other means that the tip portions of the first and second arm members are close to each other at the same time, or the tip portions are simultaneously moved. It means to rotate away from each other.

In the coke oven door cleaner according to the present invention, the refractory member of the furnace lid erected at the above-mentioned installation place is on a second equal divisional surface of the refractory member, and is opposed to the refractory member with a gap. It is preferable that the movable carriage has a column member disposed and moves in the vertical direction while being guided by the column member.
Here, the bisected vertical dividing plane is a front view of the refractory member of the erected furnace lid, and passes through the center position in the left-right direction of the refractory member to bisect the refractory member to the left and right. A plane.

In the door cleaner of the coke oven according to the present invention, the height position of the movable carriage is preferably detected by a detector that measures a distance from a reference value.

In the door cleaner of the coke oven according to the present invention, the driving means is attached to the first and second arm members and opens and closes the first and second arm members, and the first And a balance weight attached to one of the second arm members and moving the first and second arm members symmetrically.

In the coke oven door cleaner according to the present invention, it is preferable that the control unit of the fluid pressure cylinder can arbitrarily adjust the change speed of the fluid pressure.

In the door cleaner of the coke oven according to the present invention, the jet nozzle means preferably has a plurality of nozzles rotated by a hydraulic motor.

In the coke oven door cleaner according to the present invention, the first and second arm members further contact the front sides of the left and right side portions of the refractory member, respectively, on the front sides of the first and second arm members. It is preferable that a first rod member and a second rod member for rotatably holding the roller are respectively attached.

In the coke oven door cleaner according to the present invention, the first and second arms are operated by operating the driving means when the furnace lid removed from the furnace port is placed upright on the placement place on the coke oven working vehicle. By rotating the member so that the tip portions of the first and second arm members are separated from each other, the jet nozzle means attached to the first and second arm members becomes the refractory member on the inner surface of the furnace lid. Contact can be prevented, and the movable carriage can be moved in the vertical direction along the inner surface of the furnace cover. Thereby, the height position of the ejection nozzle means can be arbitrarily adjusted, and the high-pressure water ejected from the ejection nozzle means can collide with a specific height position on the inner surface of the furnace lid. Further, when the first and second arm members are rotated, the interval between the ejection nozzle means provided on the first and second arm members can be increased or decreased within a plane parallel to the inner surface of the furnace lid. it can. Thereby, the collision position of the high-pressure water on the inner surface of the furnace lid is changed by rotating the first and second arm members while injecting the high-pressure water from the ejection nozzle means toward the inner surface of the furnace lid. Can do.

Accordingly, the moving carriage is placed on the upper side of the inner surface of the furnace lid (the inner surface of the outer hardware and above the upper end of the refractory member) or the lower side (the inner surface of the outer hardware and lower than the lower end of the refractory member). The collision position of the high-pressure water on the upper side or the lower side of the inner surface of the furnace lid is determined by rotating the first and second arm members while injecting high-pressure water from the jet nozzle means. The high pressure water collides with the deposit on the upper side or the lower side of the inner surface of the furnace lid, and the deposit can be removed by the impact force. Further, the first and second high pressure water sprayed from the jet nozzle means collide with the side portions of the inner surface of the furnace lid (the gas passage along the left and right outer peripheral portions and the left and right side portions of the refractory member). The pivot angle position of each arm member is set, and the movable carriage is moved up and down while jetting high-pressure water from the jet nozzle means, thereby connecting the upper side and the lower side of the inner side of the furnace lid. High pressure water can be applied to the side portion of the inner surface along the vertical direction, and deposits on the side portion of the inner surface of the furnace lid can be removed by the impact force of the high pressure water.

As a result, the deposits adhered to the inner surface of the furnace lid can be removed using a single door cleaner, and the deposits adhered to the inner surface of the furnace lid can be removed by using an upper surface cleaner, a side surface cleaner, and a lower surface cleaner. Compared with the conventional case where three cleaners are used, the time required for maintenance of the door cleaner can be greatly reduced.
In the past, spare parts were procured and stored for each top cleaner, side cleaner, and bottom cleaner. However, the procurement and storage management of spare parts is equivalent to one unit. The burden of storage management, such as securing the location and grasping the inventory status, can be greatly reduced.
In addition, since the movable carriage can move in the vertical direction, it is possible to wait for the door cleaner to avoid locations where water splashes and dust accumulates during coke oven operation, and each device used in the door cleaner Corrosion degradation is prevented, and the failure rate of the door cleaner can be reduced. And since a door cleaner can be easily moved to the optimal place according to the adhesion range of the deposit | attachment on the inner surface of a furnace lid, the deposit | attachment on the inner surface of a furnace lid can be removed reliably.

In the door cleaner of the coke oven according to the present invention, the coke oven is located on the second equal vertical division surface of the refractory member of the furnace lid erected at the mounting place, and is disposed to face the refractory member with a gap. When the movable carriage has a pillar member and is guided by the pillar member and moves in the vertical direction, the first and second arm members can be respectively disposed on both sides of the center line in the lateral direction of the inner surface of the furnace cover. In addition, high pressure water can be jetted from both the left and right sides to the inner surface of the furnace lid from the jet nozzle means provided on the first and second arm members, respectively.

In the coke oven door cleaner according to the present invention, when detecting the height position of the moving carriage with a detector that measures the distance from the reference value, the current height position of the moving carriage is directly grasped from the detected value. Therefore, it is possible to switch between the deposit removal work on the upper side of the inner surface of the furnace lid and the deposit removal work on the side of the inner surface of the furnace lid, the deposit removal work on the lower side of the inner surface of the furnace lid, and the It is possible to easily switch between the deposit removal work on the side portion of the inner surface.

In the door cleaner of the coke oven according to the present invention, the driving means is attached to the first and second arm members to open and close the first and second arm members, and the first and second fluid pressure cylinders. In the case of having a balance weight attached to one of the arm members and moving the first and second arm members symmetrically, the first and second arm members can be rotated symmetrically with each other with a simple configuration. It can be operated, and the equipment cost is reduced and the maintenance becomes easy.

In the coke oven door cleaner according to the present invention, when the control unit of the fluid pressure cylinder can arbitrarily adjust the change speed of the fluid pressure, the rotation speed of the first and second arm members can be adjusted. It is possible to adjust the angle adjustment time between the first and second arm members and the moving speed of the high-pressure water collision position. As a result, the switching time between the deposit removal operation on the upper side of the inner surface of the furnace lid and the deposit removal operation on the side portion of the inner surface of the furnace lid, the deposit removal operation on the lower side of the inner surface of the furnace lid, and the furnace lid It is possible to shorten the switching time between the side of the inner surface of the inner surface and the work for removing the deposits and to optimize the cleaning speed when removing the deposits.

In the door cleaner of the coke oven according to the present invention, when the ejection nozzle means has a plurality of nozzles rotated by a hydraulic motor, high-pressure water is ejected into a conical region having the nozzle rotation center as a vertex. And high-pressure water can be efficiently applied to a wide range of deposits.

In the coke oven door cleaner according to the present invention, the first and second rollers contacting the front sides of the first and second arm members and the front sides of the left and right side portions of the refractory member are rotated. When the 1st and 2nd rod member to hold | maintain freely is each attached, a movable trolley | bogie can be stably moved to an up-down direction along a refractory member.

It is a side view of the door cleaner of the coke oven which concerns on one embodiment of this invention. It is a top view of the door cleaner of the coke oven. It is explanatory drawing of rotation of the 1st, 2nd arm member. It is explanatory drawing of rotation of the 1st, 2nd arm member. It is explanatory drawing at the time of removing the deposit | attachment of the lower part side of the inner surface of a furnace cover. It is explanatory drawing at the time of removing the deposit | attachment of the side part of the inner surface of a furnace cover.

Next, embodiments of the present invention will be described with reference to the accompanying drawings for understanding of the present invention.
As shown in FIGS. 1 and 2, a coke oven door cleaner 10 (sometimes simply referred to as a door cleaner 10) according to an embodiment of the present invention is, for example, an extrusion side of a coke oven (not shown). A plurality of coking chambers (not shown) are provided in an unillustrated extruder (an example of a coke oven working vehicle) that travels along the longitudinal direction (furnace length direction) of the coke oven (extrusion side of red hot coke). ) And the gas passage 12 formed in an annular shape along the outer peripheral portion of the inner surface of the outer metal piece 14 of the furnace lid 11 attached to the furnace opening provided at the end of the extrusion side, and the outer side protruding from the inner side of the gas passage 12. This is an apparatus for removing (cleaning) deposits (not shown) adhering to the side portions of the refractory member 13 provided on the metal object 14.

The door cleaner 10 is provided in the extruder, and is a moving carriage that moves up and down along the inner surface of the furnace lid 11 that is removed from the furnace port and is erected at a preset placement place on the extruder. 15, first and second mounting shafts 16, 17 which are provided on the left and right sides of the movable carriage 15, and whose respective axial directions are orthogonal to the inner surface of the furnace lid 11 erected at the mounting place, The first and second arm members 18 and 19 and the first and second arm members 18 and 19 that are rotatably attached to the second attachment shafts 16 and 17 are connected to the first and second arm members 18 and 19, respectively. Drive means 20 for rotating the two arm members 18 and 19 synchronously with each other and a front side of the first arm member 18 respectively, and one side of the gas passage 12 and the side of the refractory member 13 Multiple, for example, spraying high-pressure water on the deposits adhering to one side High pressure water is applied to the deposits attached to the other side of the gas passage 12 and the other side of the refractory member 13 provided on the front side of the two ejection nozzle means 21 and 21a and the second arm member 19, respectively. And a plurality of, for example, two ejection nozzle means 22 and 22a for removing deposits. Details will be described below.

As shown in FIG. 2, the door cleaner 10 is on the two equal longitudinal division surfaces of the refractory member 13 of the furnace lid 11 erected at the place where the extruder is placed, that is, the furnace lid erected. 11, the refractory member 13 is viewed from the front, passes through a central position in the left-right direction of the refractory member 13, and is on a plane that bisects the refractory member 13 to the left and right. It has the pillar member 23 which has and is arranged oppositely. Here, the pillar member 23 is H-shaped in a cross-sectional view, and the opposing flange portions 24 and 25 are arranged in parallel to the inner surface 26 of the refractory member 13 of the furnace lid 11. In the left and right space portions surrounded by the web 27 connecting the flange portion 24 and the flange portion 25, wheels 28 and 29 arranged in the vertical direction on both the left and right sides of the movable carriage 15 are fitted. Accordingly, the movable carriage 15 can be moved in the vertical direction while being guided by the column member 23.

Further, the movable carriage 15 is guided by the column member 23 and moves up and down via an elevating mechanism (not shown). And in the lifting mechanism, measure the distance from the reference value with reference to the reference position of the furnace lid 11 erected at the placement place of the extruder, for example, the lower end of the inner surface of the outer metal piece 14 of the furnace lid 11, A detector (not shown) having an absolute coder detection function for obtaining and storing and displaying the height position of the movable carriage 15 is provided. Thereby, when the furnace lid 11 is removed from the coking chamber of the coke oven and is set up at the place where the extruder is placed, the current height position of the movable carriage 15 with respect to the reference position of the furnace lid 11 can be immediately known. The moving carriage 15 can be quickly moved to a target height position and stopped while referring to the current position displayed on the display section.

As shown in FIGS. 2 to 4, the drive means 20 is attached to the first and second arm members 18, 19, and opens and closes the first and second arm members 18, 19. An example of a pressure cylinder) and one of the first and second arm members 18 and 19, for example, the second arm member 19, move the first and second arm members 18 and 19 symmetrically. And a balance weight 52. Here, the hydraulic cylinder 35 includes a cylindrical body portion 30, a piston 32 protruding from the cylindrical body portion 30, and a drive control unit (a control unit of the hydraulic cylinder 35, not shown). The first arm member 18 is connected to the longitudinal intermediate portion of the first arm member 18 via a pin 31, and the tip of the piston 32 is connected to the longitudinal intermediate portion of the second arm member 19 via an attachment rod 33. Connected.

Since the weight on the first arm member 18 side and the weight on the second arm member 19 side are balanced, as shown in FIG. 3, when the piston 32 is pulled into the cylindrical body portion 30, the first and second The arm members 18 and 19 are rotated so that the front portions of the first and second arm members 18 and 19 are synchronized with each other with the first and second mounting shafts 16 and 17 as fulcrums, respectively. To do. Further, as shown in FIG. 4, when the piston 32 is protruded from the cylindrical portion 30 by operating the drive control portion, the first and second arm members 18 and 19 are connected to the first and second mounting shafts 16. , 17 are pivoted so that the front portions of the first and second arm members 18, 19 are synchronously separated from each other with the fulcrum as a fulcrum.
Here, the drive control unit includes a flow rate control valve that adjusts the amount of oil supplied to the cylindrical body unit 30, and can arbitrarily adjust the change speed of the hydraulic pressure (an example of fluid pressure) in the cylindrical body unit 30. Accordingly, the advance / retreat speed of the piston 32 can be adjusted, and the rotation speeds of the first and second arm members 18 and 19 that rotate in synchronization can be changed.

A position different from the ejection nozzle means 21, 21 a on the front side of the first arm member 18, for example, in a region closer to the second arm member 19 than the ejection nozzle means 21, 21 a provided on the first arm member 18. Is provided with a first rod member 36 having an axial direction parallel to the first mounting shaft 16, and the position of the rotational axis is located at the tip of the first rod member 36. A first roller 37 is rotatably attached so as to coincide with the axial center position. Further, a position different from the ejection nozzle means 22 and 22a on the front side of the second arm member 19, for example, the ejection arm means 22 and 22a provided on the second arm member 19 is closer to the first arm member 18 side. In the region, a second rod member 38 parallel to the second mounting shaft 17 and the axial center direction is provided in alignment with the first rod member 36, and the tip of the second rod member 38 is provided. A second roller 39 is rotatably attached to the part so that the position of the rotational axis coincides with the axial position of the second rod member 38.

As a result, the first and second arm members 18 and 19 are rotated so that the front portions of the first and second arm members 18 and 19 come close to each other, thereby the first and second arm members. First and second rollers 37 and 39 provided respectively on first and second rod members 36 and 38 attached to 18 and 19 are brought into contact with the front sides of the left and right side portions of the refractory member 13. it can. As a result, when the movable carriage 15 is moved in the vertical direction along the inner surface of the furnace lid 11, the movable carriage 15 can be stably moved in the vertical direction along the refractory member 13.

Here, the ejection nozzle means 21 (the ejection nozzle means 21a, 22 and 22a are also the same) includes a hydraulic motor 40 and a nozzle head 41 attached to the tip of the rotation shaft of the hydraulic motor 40 so as to match the axial direction. The nozzle head 41 has first and second nozzles 42, 43 that are inclined toward the tangential direction at opposite positions on the circumference of a circle around the rotation axis of the nozzle head 41 and that are rotated by the hydraulic motor 40. ing. By setting it as such a structure, high pressure water can be ejected in the conical area | region which makes the rotation center of the nozzle head 41 a vertex, and high pressure water can be efficiently applied to a wide range of deposits.

As shown in FIGS. 3 and 4, a connecting member 44 is attached to the front side of the first arm member 18 in the extending direction of the first arm member 18, and the first attachment is attached to the front side of the connecting member 44. The base member 45 is provided so as to protrude in a region opposite to the second arm member 19 (for example, orthogonal to the connecting member 44), and the ejection nozzle is formed on the connecting member 44 side on the first mounting base member 45. A first fixing plate 46 for fixing the means 21 is provided, and a second fixing plate 47 for fixing the ejection nozzle means 21 a is provided outside the first fixing plate 46 on the first mounting base member 45. . A connecting member 48 is attached to the front side of the second arm member 19 in the extending direction of the second arm member 19, and a second mounting base member 49 is attached to the front side of the connecting member 48. The first nozzle for fixing the ejection nozzle means 22 to the connecting member 48 side on the second mounting base member 49 is provided so as to protrude in a region opposite to the arm member 18 (for example, orthogonal to the connecting member 48). The fixing plate 50 is provided with a second fixing plate 51 for fixing the ejection nozzle means 22 a outside the first fixing plate 50 on the second mounting base member 49.

Here, when the first arm member 18 is rotated and the first roller 37 is brought into contact with one side of the side of the refractory member 13, the rotation axis of the nozzle head 41 of the ejection nozzle means 21 is adjusted. The mounting position of the first fixing plate 46 on the first mounting base member 45 is determined so that the direction points to one side of the gas passage 12 on the inner surface of the furnace lid 11. Further, when the second arm member 19 is rotated to bring the second roller 39 into contact with the other side of the refractory member 13, the direction of the rotation axis of the nozzle head 41 of the ejection nozzle means 22 The position of attachment of the first fixing plate 50 on the second attachment base member 49 is determined so as to indicate the other side of the gas passage 12 on the inner surface of the furnace lid 11.

Furthermore, the movable carriage 15 is stopped at a preset position (referred to as an upper cleaning position) on the upper side of the inner surface of the furnace lid 11 (the inner surface of the outer metal piece 14 and above the upper end of the refractory member 13). When the first and second arm members 18 and 19 are rotated, the rotation axis of the nozzle head 41 of the ejection nozzle means 21 and 22 provided on the first and second arm members 18 and 19 respectively is the furnace lid. 11, so that the intersection intersecting the upper side of the inner surface of the gas turbine 11 moves substantially along the upper part of the gas passage 12 (region arranged along the left-right direction), and the movable carriage 15 is placed on the lower side of the inner surface of the furnace lid 11. The first and second arm members 18 and 19 are rotated by stopping at a preset position (referred to as a lower cleaning position) on the inner surface of the outer metal piece 14 and below the lower end of the refractory member 13. When moved, the first and second The intersection where the rotation axis of the nozzle head 41 of the ejection nozzle means 21, 22 of the gas member 18, 19 intersects the lower side of the inner surface of the furnace lid 11 is at the lower part of the gas passage 12 (area arranged along the left-right direction). The attachment directions when attaching the hydraulic motor 40 of the ejection nozzle means 21 and 22 to the first fixing plates 46 and 50 are determined so as to move substantially along.

Similarly, when the first arm member 18 is rotated and the first roller 37 is brought into contact with one side of the refractory member 13, the rotational axis of the nozzle head 41 of the ejection nozzle means 21a is adjusted. The mounting position on the first mounting base member 45 of the second fixing plate 47 is determined so that the direction points to one side of the refractory member 13 on the inner surface of the furnace lid 11. Further, when the second arm member 19 is rotated to bring the second roller 39 into contact with the other side of the side portion of the refractory member 13, the direction of the rotation axis of the nozzle head 41 of the ejection nozzle means 22a Indicates the attachment position of the second fixing plate 51 on the second attachment base member 49 so that the other side of the refractory member 13 on the inner surface of the furnace lid 11 is indicated.

Further, when the movable carriage 15 is stopped at the upper cleaning position set on the upper side of the inner surface of the furnace lid 11 and the first and second arm members 18 and 19 are rotated, the first and second arms The intersection where the rotation axis of the nozzle head 41 of the ejection nozzle means 21a, 22a of the members 18, 19 intersects the upper side of the inner surface of the furnace lid 11 is substantially along the left-right direction in the region above the upper end of the refractory member 13. When the moving carriage 15 is stopped at the lower cleaning position set on the lower side of the inner surface of the furnace lid 11 and the first and second arm members 18 and 19 are rotated so as to move, the first The intersection where the rotation axis of the nozzle head 41 of the ejection nozzle means 21a, 22a of the second arm members 18, 19 intersects the lower side of the inner surface of the furnace lid 11 is left and right in the region below the lower end of the refractory member 13. To move roughly along the direction , The jetting nozzle means 21a, the mounting direction for mounting each hydraulic motor 40 of 22a to the second fixed plate 47, 51 are determined respectively.

As a result, as shown in FIG. 5, the movable carriage 15 is stopped at the lower cleaning position, and high pressure water is jetted from the jet nozzle means 21, 21a, 22, 22a, while the first and second arm members 18, 19, the collision position between the high pressure water jetted from the jet nozzle means 21 and 22 and the inner surface of the furnace lid 11 is moved along the lower part of the gas passage 12 respectively, and the jet nozzle means 21a, The collision position between the high pressure water jetted from 22a and the inner surface of the furnace lid 11 can be moved along the left-right direction in the region below the lower end portion of the refractory member 13, and the lower side of the inner surface of the furnace lid 11 can be moved. Deposits adhering to can be removed by the impact force of high-pressure water.

Further, the first and second arm members 18 and 19 are rotated to bring the first and second rollers 37 and 39 into contact with both sides of the side portion of the refractory member 13, respectively, As shown in FIG. 6, by moving the movable carriage 15 in the vertical direction while jetting high-pressure water from 21a, 22, 22a, the high-pressure water jetted from the jet nozzle means 21, 22 and the inner surface of the furnace lid 11 Is moved along the left and right regions (vertical regions) of the gas passage 12 on the inner surface of the furnace lid 11, and the high-pressure water injected from the ejection nozzle means 21 a and 22 a and the inner surface of the furnace lid 11. The collision position can be moved along the left and right sides of the refractory member 13, and the deposits adhering to the left and right sides of the inner surface of the furnace lid 11 can be removed by the impact force of the high-pressure water.

Further, by stopping the movable carriage 15 at the upper cleaning position and rotating the first and second arm members 18 and 19 while jetting high-pressure water from the jet nozzle means 21, 21a, 22, and 22a, The collision position between the high-pressure water jetted from the jet nozzle means 21 and 22 and the inner surface of the furnace lid 11 is moved substantially along the upper part of the gas passage 12, respectively, and the high-pressure water jetted from the jet nozzle means 21a and 22a and the furnace The collision position with the inner surface of the lid 11 can be moved along the left and right directions in the region above the upper end portion of the refractory member 13, and the adhering matter adhering to the upper side of the inner surface of the furnace lid 11 can be removed. It can be removed by impact force.

Here, when the movable carriage 15 is stopped at the lower cleaning position (the same applies to the upper cleaning position) and the high pressure water is to be sprayed uniformly on the lower side of the inner surface of the furnace lid 11, the first arm member 18. Are provided with the ejection nozzle means 21 (same for the ejection nozzle means 21a) and the second arm member 19 is provided with the ejection nozzle means 22 (same for the ejection nozzle means 22a). High pressure water may be sprayed from the jet nozzle means 21 to a region on one side of the center line in the left-right direction, and from the spray nozzle means 22 to a region on the other side of the center line in the left-right direction of the inner surface of the furnace lid 11. For this reason, when it is going to spray high pressure water uniformly from the one side of the left-right direction to the other side in the lower part side of the inner surface of the furnace lid 11, each of the first and second arm members 18 and 19 is necessary. The rotation angle is smaller than the required rotation angle of the arm member when one ejection nozzle means is provided for one arm member.

For this reason, the range in which the ejection nozzle means 21 and 22 move in the vertical direction with the rotation of the first and second arm members 18 and 19 is one ejection nozzle means with the rotation of one arm member. Becomes smaller than the range of movement in the vertical direction. Therefore, the collision position of the high-pressure water ejected from the ejection nozzle means 21 and 22 is at the height position of the gas passage 12 at an arbitrary rotational angle within the rotational angle range of the first and second arm members 18 and 19. The collision position of the high-pressure water ejected from the ejection nozzle means coincides with the height position of the gas passage 12 at an arbitrary rotation angle within the rotation angle range of one arm member so as to coincide with each other. In this case, the deviation of the locus of the collision position when the first and second arm members 18 and 19 are rotated and the gas path 12 are shifted from the locus of the collision position and the gas path 12 when one arm member is rotated. Smaller than the deviation. As a result, by providing the ejection nozzle means 21 and 22 on the first and second arm members 18 and 19, respectively, high-pressure water can be efficiently sprayed along the gas passage 12 and attached to the gas passage 12. It is possible to efficiently remove the adhered matter.

Then, the usage method of the door cleaner 10 which concerns on one embodiment of this invention is demonstrated.
The furnace lid 11 removed from the furnace port provided at the end of the carbonizing chamber on the extrusion side is placed upright on the placement place on the extruder, and the driving means 20 is operated to operate the first and second arm members 18. , 19 are respectively moved to the outside in the left-right direction of the furnace lid 11 on the inner surface side of the furnace lid 11, and the ejection nozzle means 21, 21a, 22, 22a and the furnace Interference with the inner surface of the lid 11 is prevented. As a result, the movable carriage 15 can be moved toward the lower cleaning position, for example, on the inner surface of the furnace lid 11 on the front side of the inner surface of the furnace lid 11 and stopped when it reaches the lower cleaning position.

Next, the first and second ejecting nozzle means 21, 21 a, 22, 22 a provided on the front sides of the first and second arm members 18, 19 are operated again by operating the driving means 20. The arm members 18 and 19 are rotated. Then, the first and second arm members 18 and 19 are rotated so that the ejection nozzle means 21, 21a, 22, and 22a are separated from each other while jetting high-pressure water from the ejection nozzle means 21, 21a, 22, and 22a. . Thereby, the collision position of the high-pressure water jetted from the jet nozzle means 21 and 22 is moved substantially along the lower part of the gas passage 12 (area arranged along the left-right direction) and jetted from the jet nozzle means 21a and 22a. The collision position of the high-pressure water moves along the left-right direction in a region below the lower end portion of the refractory member 13. As a result, deposits adhering to the lower side of the inner surface of the furnace lid 11 are removed by the impact force of the high-pressure water.

Here, the first and second arm members 18 and 19 are rotated when the movable carriage 15 is moved to the lower cleaning position, and the high pressure water is ejected from the ejection nozzle means 21, 21a, 22, and 22a. For example, the first and second arm members 18 and 19 are rotated at the maximum rotation speed. Thereby, the removal operation | work of a deposit can be started quickly. In addition, when the first and second arm members 18 and 19 are rotated while jetting high-pressure water from the jet nozzle means 21, 21a, 22, and 22a, the rotation is made according to the adhesion status and adhesion strength of the deposit. Adjust the dynamic speed. Thereby, an impact force can be effectively applied to the deposit and the deposit can be efficiently removed.

When the removal of the adhering matter adhering to the lower side of the inner surface of the furnace lid 11 is completed, the first and second arm members 18 and 19 are rotated while jetting high-pressure water from the jet nozzle means 21, 21a, 22, and 22a. The first and second rollers 37 and 39 are brought into contact with both sides of the side portion of the refractory member 13 by moving them. When the first and second rollers 37 and 39 are in contact with both sides of the side portion of the refractory member 13, the high-pressure water sprayed from the jet nozzle means 21 and 22 flows into the gas passage 12 on the inner surface of the furnace lid 11. The high-pressure water that collides with the left and right regions and is ejected from the ejection nozzle means 21 a and 22 a collides with the left and right sides of the refractory member 13 on the inner surface of the furnace lid 11. Subsequently, the movable carriage 15 is moved toward the upper cleaning position while jetting high-pressure water from the jet nozzle means 21, 21a, 22, 22a.

As a result, the collision position of the high-pressure water ejected from the ejection nozzle means 21, 22 moves along the left and right regions of the gas passage 12, and the collision position of the high-pressure water ejected from the ejection nozzle means 21 a, 22 a is the refractory member 13. Move along the left and right sides of the. As a result, the deposits adhering to the side of the inner surface of the furnace lid 11 are removed by the impact force of the high-pressure water. In addition, when moving the mobile trolley | bogie 15, a moving speed is adjusted according to the adhesion condition and adhesion intensity | strength of a deposit | attachment. Thereby, an impact force can be effectively applied to the deposit and the deposit can be efficiently removed.

When the removal of the adhering matter adhering to the side of the inner surface of the furnace lid 11 is completed, the first and second driving means 20 are operated while jetting high-pressure water from the jet nozzle means 21, 21a, 22, 22a. The first and second arm members 18 and 19 are rotated so that the ejection nozzle means 21, 21 a, 22, and 22 a provided on the front sides of the arm members 18 and 19 reapproach each other. Thereby, the collision position of the high-pressure water jetted from the jet nozzle means 21 and 22 moves from the outer side in the left-right direction toward the center of the upper part of the gas passage 12 (region arranged along the left-right direction). The collision position of the high-pressure water jetted from the means 21a, 22a moves from the upper side of the refractory member 13 to the center from the outer side in the left-right direction. As a result, deposits adhering to the upper side of the inner surface of the furnace lid 11 are removed by the impact force of the high-pressure water. Here, when rotating the first and second arm members 18 and 19 while jetting high-pressure water from the jet nozzle means 21, 21a, 22, 22a, Adjust the rotation speed. Thereby, an impact force can be effectively applied to the deposit and the deposit can be efficiently removed.

When the removal of the adhering matter adhering to the upper side of the inner surface of the furnace lid 11 is completed, the high pressure water sprayed from the jet nozzle means 21, 21a, 22, 22a is stopped, and the movable carriage 15 is further raised to the upper standby position. Let Thereby, it is possible to avoid the scattering of water sprayed during the coke oven operation, and to prevent the dust generated with the coke oven operation from accumulating. As a result, it is possible to suppress the corrosion deterioration of each device used in the door cleaner 10 and to prevent the door cleaner 10 from being damaged due to the malfunction of the device.

As described above, the present invention has been described with reference to the embodiment. However, the present invention is not limited to the configuration described in the above-described embodiment, and the matters described in the scope of claims. Other embodiments and modifications conceivable within the scope are also included.
Further, the present invention also includes a combination of components included in the present embodiment and other embodiments and modifications.
For example, the coke oven door cleaner is provided in the extruder, but it can also be provided in a guide vehicle that runs on the discharge side of the coke oven. Further, a coke oven door cleaner may be provided in each of the guide wheel and the extruder.

10: coke oven door cleaner, 11: furnace lid, 12: gas passage, 13: refractory member, 14: outer hardware, 15: moving carriage, 16: first mounting shaft, 17: second mounting shaft, 18: first arm member, 19: second arm member, 20: driving means, 21, 21a, 22, 22a: ejection nozzle means, 23: column member, 24, 25: flange portion, 26: inner surface, 27: Web, 28, 29: Wheel, 30: Tube part, 31: Pin, 32: Piston, 33: Mounting rod, 34: Pin, 35: Hydraulic cylinder, 36: First rod member, 37: First 38: second rod member, 39: second roller, 40: hydraulic motor, 41: nozzle head, 42: first nozzle, 43: second nozzle, 44: coupling member, 45: first 1 mounting base member, 46: first fixing , 47: second fixing plate, 48: connecting member, 49: second mounting base member, 50: first fixed plate, 51: a second fixing plate, 52: balance weight

Claims (7)

A furnace lid mounted on a coke oven working vehicle that travels along the longitudinal direction of the coke oven on the extrusion side or discharge side of the coke oven, and attached to the furnace ports respectively provided at the ends of the plurality of coking chambers of the coke oven. A gas passage formed in an annular shape along the outer peripheral portion of the inner surface of the outer metal fitting, and deposits protruding from the inner portion of the gas passage and adhering to the side portions of the refractory member provided on the outer metal fitting are removed. A coke oven door cleaner,
A movable carriage that is provided in the coke oven working vehicle and moves up and down along the inner surface of the furnace lid that is removed from the furnace port and is erected at a preset placement place on the coke oven working vehicle. When,
First and second mounting shafts that are provided on both the left and right sides of the movable carriage and whose respective axial directions are perpendicular to the inner surface of the furnace lid that is erected at the above-described installation place;
First and second arm members rotatably attached to the first and second attachment shafts;
Drive means for connecting the first and second arm members and rotating the first and second arm members synchronously and symmetrically;
A jet nozzle means provided on the front side of each of the first and second arm members, for spraying high pressure water on the deposits adhered to the gas passages and the side portions of the refractory member to remove the deposits. And a coke oven door cleaner. The door cleaner for a coke oven according to claim 1, wherein the refractory member has a gap on the second equal divisional surface of the refractory member of the furnace lid erected at the installation place. A door cleaner for a coke oven, comprising column members disposed opposite to each other, wherein the movable carriage is guided by the column members and moves in a vertical direction. The coke oven door cleaner according to claim 2, wherein the height position of the movable carriage is detected by a detector that measures a distance from a reference value. The coke oven door cleaner according to any one of claims 1 to 3, wherein the driving means is attached to the first and second arm members to open and close the first and second arm members. And a balance weight attached to one of the first and second arm members to move the first and second arm members symmetrically. Cleaner. 5. The coke oven door cleaner according to claim 4, wherein the fluid pressure cylinder control unit can arbitrarily adjust the rate of change of fluid pressure. The coke oven door cleaner according to any one of claims 1 to 5, wherein the jet nozzle means includes a plurality of nozzles rotated by a hydraulic motor. In the door cleaner of the coke oven of any one of Claims 1-6, in the front side of the said 1st, 2nd arm member, it is further on the front side of the left-right side part of the said refractory member. A coke oven door cleaner, characterized in that first and second rod members are rotatably mounted to hold the first and second rollers in contact with each other.

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