JP6455504B2 - Mortar application method - Google Patents

Description

  The present invention relates to a mortar coating method suitable for automation, in which, when building up a coke oven by stacking regular refractories, the mortar is applied to the regular refractories using an arm robot.

  Metallurgical coke used for iron making is produced by dry distillation of coal in a chamber furnace type coke oven. A chamber-type coke oven is configured by alternately arranging a carbonization chamber and a combustion chamber that supplies heat to the carbonization chamber in the furnace width direction, such as a refractory brick that separates the carbonization chamber and the combustion chamber. Heat is supplied from the combustion chamber to the carbonization chamber via a fixed refractory. Some furnace-type coke ovens have more than 100 furnace chambers, and can be said to be huge brick structures with a total length of 100 m or more and a height of 10 m or more.

  In addition, the regular refractory constituting the coke oven has a complicated shape such as a rectangular shape, a trapezoidal shape, and an L-shape when viewed from the top, unlike a brick for a general building. Furthermore, there are cases where irregularities for preventing misalignment called dowels are provided on the side, top and bottom surfaces of these standard refractories. The coke oven is constructed by combining fixed refractories having such extremely complicated shapes.

  Due to this complexity, the construction of coke ovens is currently being carried out by hand-building work by the furnace builder. In a manually built furnace, it is necessary to repeat the work of applying mortar to a predetermined joint thickness using a trowel at a position where the standard refractory is stacked, and then stacking the standard refractory on the mortar. In that case, it is necessary to apply mortar uniformly to the surface of the fixed-shaped refractory with a complicated shape, but extremely advanced skills are required. However, there is always a shortage of skilled furnaces with such skills. ing. In addition, it is extremely hard work to build a furnace by manually applying mortar and stacking regular refractories. Therefore, it is required to use a robot or the like to reduce the labor load of mortar application and regular refractory stacking work, and to shorten the time required for building a furnace.

  For automation of brickwork using a robot, for example, the methods of the following Patent Documents 1 and 2 have been proposed.

  In patent document 1, the apparatus which arrange | positions the brick in a converter furnace is proposed. In the above apparatus, a tower is disposed from the bottom of the furnace circumferential center of the converter furnace body to the upper part of the furnace body, and a work deck that can be raised and lowered is provided on the tower. There is provided a building robot that arranges a link along the link and can be attached to, detached from, and rotated on the link. In the apparatus described in Patent Document 1, it is possible to quickly arrange bricks sequentially in a spiral form from the center of the furnace bottom to the furnace top by the furnace building robot.

  Moreover, in patent document 2, the apparatus which piles up the brick of a chaotic car furnace body is proposed. In the apparatus, a multi-joint arm and a balancer are provided at the tip thereof, and a brick is operated by an adsorption pad at the tip of the balancer. The articulated arm is inserted into the furnace by a mast from the furnace port, and the mast can be swung by a swirling wheel at the furnace port. In the apparatus described in Patent Document 2, it is possible to mechanize the brickwork of the entire upper lower circumference in the furnace.

JP-A-10-204518 JP 2000-319714 A

  The devices proposed in Patent Documents 1 and 2 are intended for converters and chaotic car furnace bodies. Since converters and kneading car furnace bodies are constructed by regularly stacking bricks having a relatively simple structure, it is relatively easy to mechanize the work. However, in the construction of a coke oven, it is necessary to arrange the fixed-shaped refractories in a complicated shape as described above. Therefore, it is not possible to use an apparatus as described in Patent Documents 1 and 2. .

  In addition, in order to automate the work of the coke oven construction, it is necessary not only to build up standard refractories, but also to automate the application of mortar to the standard refractories. It has been difficult to automate the application of mortar to objects.

  For example, FIG. 6 is a schematic view showing an example of a method of performing a work performed in a normal manual furnace by a robot, such as stacking fixed refractories and applying mortar to the stacked fixed refractories. . In this example, the fixed refractory 10 is gripped by a hand 22 provided at the tip of the arm 21 of the fixed refractory gripping arm robot 20 and stacked at a predetermined stacking position. Next, the mortar 40 is applied by the mortar application arm robot 30 to the upper surface and side surfaces of the stacked standard refractories. The mortar application arm robot 30 includes a dispenser 32 at the tip of an arm 31, and a mortar application nozzle 33 is connected to the tip of the dispenser 32. The dispenser 32 is connected to the mortar supply means 50 by a hose 60.

  In this way, a method of applying mortar to a fixed refractory in a stacked state is called “greeting toro”, and is a method generally performed in manual work. However, as shown in FIG. 6, it has been found that there are the following problems when mortar is applied to a fixed refractory in a stacked state by a robot.

  First, in order to apply mortar to the side of the stacked regular refractory, if the mortar is not discharged in a state where the mortar application nozzle 33 is brought close to an appropriate surface of the regular refractory to be coated, It is discharged into the air and does not adhere to the surface of the standard refractory or falls off the side of the standard refractory. Therefore, it is necessary to control the position of the mortar application nozzle 33 very accurately.

  In addition, in the construction of a coke oven, it is necessary to pile up a combination of fixed refractories having complicated shapes as described above. For example, in order to load the next fixed refractory on the fixed refractories 11, 12 in a state where the fixed refractories are stacked as shown in FIG. 7, 11A which is the upper surface of the fixed refractories 11, 12. 12A and 14A and 14B which are side surfaces of the fixed refractory 14 need to be applied with mortar. However, the surface of 14B interferes with the mortar application nozzle 33 when the mortar is applied to 14A, and the surface of 14A interferes with the mortar applied to 14B. Therefore, even if the application is performed using the apparatus as shown in FIG. 6, there is a problem that the mortar application nozzle 33 cannot be brought close to the surface to which the standard refractory is applied up to an appropriate distance. Even if the shape of the mortar application nozzle 33 is devised so that the mortar application nozzle 33 can be brought closer to the application surface, there are restrictions on the posture of the mortar application arm robot 30 and the direction of the nozzle. It is difficult to move the nozzle. Furthermore, the shape of coke ovens and fixed refractories for coke ovens varies greatly depending on the location, so even if the nozzle has a shape that makes it easy to apply mortar to a certain part, it interferes with the fixed refractory in other parts. There are also problems such as inability to use, and the nozzle is too small and the coating efficiency is too low.

  The present invention has been made in view of the circumstances peculiar to a fixed refractory for a coke oven, which is completely different from a brick for general construction as described above, and is constructed by stacking a fixed refractory in a predetermined stacking position. It is an object of the present invention to provide a mortar coating method that can uniformly apply mortar without interfering with the regular refractory, even if it is a regular refractory having a complicated shape.

That is, the gist configuration of the present invention is as follows.
1. A mortar application method for applying mortar to a fixed form refractory when building a coke oven by stacking the fixed form refractory at a predetermined stacking position,
Using at least one fixed refractory arm robot and at least one mortar application arm robot;
A mortar application method, wherein the mortar application arm robot applies mortar to at least one surface of the fixed refractory before being stacked in a state where the fixed refractory holding arm robot is held at an application position different from the stacking position. .

2. A mortar application method for applying mortar to a fixed form refractory when building a coke oven by stacking the fixed form refractory at a predetermined stacking position,
Use at least one mortar application arm robot,
A mortar application method in which mortar is applied to at least one surface of a standard refractory before stacking placed at an application position different from the stacking position by the mortar application arm robot.

3. The mortar coating method according to 1 or 2 above,
The mortar application arm robot includes a mortar application nozzle having an opening of a predetermined width,
When the mortar is applied to at least one surface of the fixed refractory material before the stack by the mortar application arm robot, the width direction of the opening of the mortar application nozzle is set with respect to the moving direction of the mortar application nozzle. A mortar coating method in which the coating width of the mortar is adjusted by tilting.

4). A mortar application method for applying mortar to a fixed form refractory when building a coke oven by stacking the fixed form refractory at a predetermined stacking position,
Use at least one standard refractory gripping arm robot,
The mortar is applied to at least one surface of the fixed refractory by bringing the fixed refractory into contact with the mortar held in a container in a state where the fixed refractory is held by the arm robot for holding the fixed refractory. A mortar coating method.

5. A method of applying mortar to a fixed form refractory when building a coke oven by stacking the fixed form refractory at a predetermined stacking position,
Using at least one fixed refractory arm robot and at least one mortar application arm robot;
Applying mortar to at least one of the upper surface and the side surface of the fixed refractory in a state of being stacked at the stacking position, using the mortar application arm robot;
A mortar coating method comprising a step of applying mortar to at least one surface of a fixed refractory prior to stacking by at least one of the mortar coating methods described in 1 to 4 above.

  According to the mortar coating method of the present invention, when a standard refractory is stacked at a predetermined stacking position to construct a coke oven, even a standard refractory having a complicated shape interferes with the standard refractory. The mortar can be applied uniformly without any problems.

It is a schematic diagram which shows the mortar coating method in 1st Embodiment. It is a schematic diagram which shows the mortar coating method in 2nd Embodiment. It is a schematic diagram which shows the mortar coating method in 3rd Embodiment. It is a schematic diagram which shows the rotation method of the fixed form refractory in 3rd Embodiment. It is a schematic diagram which shows the mortar coating method in 4th Embodiment. It is a schematic diagram which shows an example of the automation method of the stacking | stacking of a regular refractory material and application | coating of mortar by a prior art. It is a schematic diagram which shows an example of the shape and arrangement | positioning of a fixed form refractory in the construction of a coke oven. It is a schematic diagram which shows an example of the shape of the nozzle for mortar application. It is a schematic diagram in case the width | variety L of the opening of the nozzle for mortar application | coating is larger than the width W of the to-be-coated surface of a fixed form refractory. It is a schematic diagram which shows the adjustment method of application | coating width | variety in case the width L of the opening of the nozzle for mortar application | coating is larger than the width W of the to-be-coated surface of a fixed form refractory. It is a schematic diagram in case the width | variety L of the opening of the nozzle for mortar application | coating is smaller than the width W of the to-be-coated surface of a fixed form refractory. It is a schematic diagram which shows an example in the case of apply | coating mortar in 2 steps. It is a schematic diagram which shows the other example in the case of apply | coating mortar in 2 steps.

In the present invention, mortar can be applied to a fixed refractory in the construction of a coke oven by the following four methods.
(1) A method of applying a robot to a fixed refractory held by a robot,
(2) A method of applying a robot to a fixed refractory placed at a coating position different from the loading position,
(3) A method of applying a fixed refractory grasped by a robot by bringing it into contact with a mortar held in a container, and (4) a method of applying by a robot to a fixed refractory in a state of being stacked at a stacking position; The method of apply | coating combining at least 1 method of said (1)-(3).

  The fixed refractory is not particularly limited, and any fixed refractory for a coke oven can be used as long as it is used for a coke oven, such as a brick or a precast block. As the standard refractory material, one having a dowel for alignment on at least one of its surfaces can be used. The shape of the dowel is not particularly limited, but is usually one or both of a hook-like convex portion extending substantially linearly and a groove extending substantially linearly engaged with the convex portion.

  Hereinafter, a method for carrying out each of the mortar coating methods (1) to (4) will be specifically described. The following description shows a preferred embodiment of the present invention, and the present invention is not limited to the following description.

(First embodiment)
In the first embodiment of the present invention, when a standard refractory is stacked at a predetermined stacking position to build a coke oven, the fixed refractory prior to stacking is gripped by a robot, and the fixed refractory is in that state. Apply mortar with robot.

  FIG. 1 is a schematic view showing a mortar coating method in the present embodiment. In addition, the same number is attached | subjected about the element which is common in FIG. The same applies to the subsequent figures. In the present embodiment, at least one fixed refractory holding arm robot 20 and at least one mortar coating arm robot 30 are used. As the fixed refractory holding arm robot 20 and the mortar coating arm robot 30, any arm type robot can be used. From the viewpoint of the wide range of movement, the vertical articulated robot Is preferably used.

  The fixed refractory holding arm robot 20 can hold the fixed refractory 10 with a hand 22 attached to the tip of the arm 21. It is preferable that the arm 21 includes a plurality of rotating shafts because of the high degree of freedom in handling the fixed refractory. As the hand 22, for example, a hand that can be opened and closed by air pressure or electricity can be used. The number of standard refractories to be held at one time is not particularly limited, but may be usually one. The fixed refractory holding arm robot 20 holds the fixed refractory 10 before stacking with the hand 22 and holds the fixed refractory 10 at the application position.

  The fixed-type refractory-holding arm robot 20 is not limited as long as it can hold at least the fixed-type refractory 10 when applying mortar. However, as described later, the fixed-type refractory is moved to the application position, and after the application is finished, the mortar It is preferable to have a function of stacking the fixed refractory coated with the ink at a predetermined stacking position.

  The supply of the fixed refractory 10 to the fixed refractory gripping arm robot 20 can be performed by any method. For example, on a distribution base for supplying a standard refractory, the standard refractory on the distribution base is placed in advance according to the shape of the standard refractory, or placed in advance in the stacking order. The robot 20 may be used for gripping and moving. In this case, the distribution table is installed within a range where the arm 21 of the standard refractory-holding arm robot 20 can reach. As another method, it is also possible to use a supply means such as a belt conveyor to supply the standard refractory within the reach of the arm 21 of the standard refractory gripping arm robot 20 each time.

  The fixed refractory holding arm robot 20 can move the fixed refractory to an arbitrary position as necessary after holding the fixed refractories before stacking. Thereafter, mortar is applied by the mortar application arm robot 30 to at least one surface of the fixed refractory 10 held by the fixed refractory holding arm robot 20. If the position (application position) of the fixed refractory 10 at the time of application is different from the position (stacking position) where the fixed refractory is scheduled to be stacked, the fixed refractory holding arm robot 20 and mortar application Any position can be used as long as the arm of the arm robot 30 can be reached. For example, it can be in the air as shown in FIG.

  The mortar coating arm robot 30 includes a dispenser 32 at the tip of the arm 31, and a mortar coating nozzle 33 is connected to the tip of the dispenser 32. In view of the high degree of freedom of mortar application, the arm 31 preferably includes a plurality of rotating shafts. The dispenser 32 is connected to the mortar supply means 50 by a hose 60. The mortar supply means 50 includes a hopper that accommodates the mortar 40, and supplies the mortar 40 to the dispenser 32 by a pump (not shown).

  As shown in FIG. 1, the mortar application arm robot 30 applies the mortar to the fixed refractory 10 held by the hand 22 of the fixed refractory holding arm robot 20. The mortar application nozzle 33 can be moved closer. This method will be referred to as nozzle attachment. The mortar may be applied to at least one surface of the fixed refractory 10, but may be applied to two or more surfaces as necessary. As described above, when mortar is applied to the side surface of the fixed refractory in a stacked state, the position control of the nozzle is particularly difficult, so in the method of the present invention, at least one of the side surfaces of the fixed refractory is applied. It is preferable to apply mortar with a mortar application arm robot.

  The fixed refractory 10 after the mortar is applied is moved by the fixed refractory gripping arm robot 20 and stacked at a predetermined stacking position. In this way, by applying mortar to the fixed refractory before stacking, the nozzle interferes with the fixed refractory unlike the method of applying mortar to the stacked fixed refractory as explained in FIG. The coating can be performed reliably without any problems. For example, in the case of the situation shown in FIG. 7, the mortar is not applied to the recessed portions like the surfaces 14A and 14B of the fixed refractory 14, but the convex of the fixed refractory that is next stacked so as to contact those surfaces. What is necessary is just to apply | coat mortar to the surface which opposes the surfaces 14A and 14B of a shaped part.

  In addition, the direction of the fixed refractory 10 at the time of apply | coating mortar is not specifically limited, It can be set as arbitrary directions. For example, mortar is applied to a plurality of surfaces by changing the direction of the nozzle 33 for mortar application without changing the direction of the fixed refractory 10 while the fixed refractory 10 is held in the direction of the hand 22. You can also. However, from the viewpoint of ease of mortar application, it is preferable to apply the mortar with the surface to be applied facing upward as shown in FIG. If the mortar is applied with the surface to be coated facing upward, even if the mortar coating nozzle 33 is slightly separated from the surface to be coated, the discharged mortar falls by its own weight and is reliably applied to the surface to be coated. Because it is done. However, according to the method of the present invention, the mortar coating nozzle 33 can be brought close to the surface of the fixed refractory without interfering with the surrounding fixed refractories, and thus the coating is performed in a state where the surface to be coated is in the vertical direction. Can be performed without any problem. The same applies to a second embodiment described later.

  FIG. 8 is a schematic diagram showing an example of the shape of the mortar application nozzle 33, FIG. 8A is a perspective view of the mortar application nozzle 33, and FIG. 8B is the shape of the tip of the mortar application nozzle 33. FIG. A slit-like opening having a predetermined width L is provided at the tip of the mortar application nozzle 33, and mortar is discharged from the opening. The shape of the mortar application nozzle 33 is not limited to that shown in FIG. 8, but can be any shape. However, if the shape is as shown in FIG. 8, the mortar can be applied with a uniform width and a constant width. Therefore, it is preferable.

  In the construction of a coke oven, fixed refractories having various shapes are used as described above. Therefore, in one embodiment of the present invention for mortar application in all cases, mortar application is further described as follows. The width can be adjusted. The coating method described below can be similarly employed in the second embodiment described later.

  FIG. 9 is a schematic view when the width L of the mortar coating nozzle opening is larger than the width W of the coated surface 10a of the fixed refractory. In FIG. 9, the mortar coating nozzle itself is omitted, and only the opening 34 and its moving direction (arrow) are shown. In the example shown in this figure, the mortar application nozzle 33 is moved in the direction perpendicular to the width direction of the opening 34 (the direction indicated by the arrow L in FIG. 8) (the direction indicated by the arrow in FIG. 9). While applying mortar. As shown in FIG. 9, when L is larger than W, the mortar protrudes from the coated surface 10a, so that the mortar is wasted and, in some cases, it is necessary to remove the protruding mortar.

  Therefore, as shown in FIG. 10, the mortar application width is adjusted by inclining the width direction of the opening 34 of the mortar application nozzle 33 with respect to the moving direction of the mortar application nozzle (arrow in FIG. 9). can do. If the opening 34 is inclined in this way, the width of the mortar that is actually applied can be made to substantially coincide with the width W of the surface to be coated 10a by adjusting the angle, and as a result, the mortar that protrudes can be made to protrude. The amount can be minimized. In addition, the inclination method of the opening 34 is not specifically limited, What is necessary is just to incline so that it may become a desired coating width. For example, with reference to a state where the width direction of the opening 34 is perpendicular to the moving direction of the nozzle (FIG. 9), the width direction of the opening 34 may be inclined so as to obtain a desired coating width. Moreover, as shown in FIG. 10, the inclination of the opening 34 can be changed during the coating operation.

  On the other hand, as shown in FIG. 11, when L is smaller than W, the unpainted portion can be left only by applying once (one pass). Therefore, by leaving the position of the mortar coating nozzle 33 in the width direction of the surface to be coated and performing the coating a plurality of times (a plurality of passes), it is possible to prevent unpainted portions.

  For example, FIG. 12 is a schematic diagram when the application is performed in two passes. In the first pass, as shown in FIG. 12A, coating is performed by arranging the opening 34 so that one end in the width direction of the opening 34 is in contact with one end in the width direction of the coated surface 10a. Then, in the second pass, as shown in FIG. 12B, the opening 34 is disposed so that the other end in the width direction of the opening 34 is in contact with the other end in the width direction of the coated surface 10a. . Thereby, mortar can be apply | coated to the whole to-be-coated surface 10a. As shown in FIG. 12, when (L × number of passes) does not match W, a part of the mortar applied in each pass (in the case of FIG. 12, the width direction of the coated surface 10a) It will overlap at the center. For this reason, the mortar coating thickness in that part will be thicker than in other parts, but when stacking regular refractories, the distance between adjacent regular refractories (joint thickness) will be appropriate. There is no problem because the fixed refractory is pressed and the excess mortar is pushed out.

  In the method shown in FIG. 12, the width direction of the opening 34 of the mortar application nozzle 33 is perpendicular to the moving direction of the mortar application nozzle 33. However, as shown in FIG. Can be adjusted with respect to the moving direction of the nozzle 33 for mortar application by adjusting the application width of the mortar. If the opening 34 is inclined in this way, the amount of mortar that is pushed out and wasted can be reduced because the portion to be applied can be minimized even when mortar is applied in multiple passes. This is preferable because it is possible.

(Second Embodiment)
In the second embodiment of the present invention, when a standard refractory is stacked at a predetermined stacking position to build a coke oven, the fixed refractory before stacking is placed at a coating position different from the stacking position. The mortar is applied to at least one surface of the standard refractory by a robot.

  FIG. 2 is a schematic diagram showing a mortar coating method in the present embodiment. First, the fixed refractory 10 before being applied with mortar is placed at a position (application position) for application. Next, the mortar is applied by bringing the mortar application nozzle 33 of the mortar application arm robot 30 close to the fixed refractory 10 placed at the application position. The mortar may be applied to at least one surface of the fixed refractory 10, but may be applied to two or more surfaces as necessary. This method will be referred to as an attachment trowel by standing a fixed refractory. Note that points other than those described here can be the same as those in the first embodiment.

  The application position can be any position as long as it is a position different from the stacking position. For example, the fixed refractory 10 can be moved within a range that the arm 31 of the mortar coating arm robot 30 can reach, as shown in FIG. 2, using a robot or the like that can move the fixed refractory. Moreover, from the viewpoint of work efficiency, it is placed on the distribution stand for supplying the regular refractory, separately for each shape of the regular refractory, or placed in advance in the order of loading. Mortar can also be applied to regular refractories.

  Similar to the first embodiment, also in the method of this embodiment, the nozzle can be reliably applied without interfering with the fixed refractory. Further, the method of this embodiment is excellent in work efficiency because it is not necessary to keep holding the fixed refractory by the robot when applying the mortar.

(Third embodiment)
In the third embodiment of the present invention, the fixed refractory is brought into contact with a mortar held in a container in a state where the fixed refractory is held by a fixed refractory gripping arm robot. Apply mortar to at least one side of the refractory.

  FIG. 3 is a schematic view showing a mortar coating method in the present embodiment. In this embodiment, the mortar 40 is accommodated in the container 70, and the mortar is applied to the surface of the fixed refractory 10 by bringing the fixed refractory 10 held by the fixed refractory holding arm robot 20 into contact with the mortar 40. Is done. This method will be referred to as a “fitting toro”.

  Any container 70 can be used as long as it can accommodate mortar. For example, a bat or the like can be used. The method for bringing the fixed refractory 10 into contact with the mortar 40 is not particularly limited as long as at least the coated surface of the fixed refractory is in contact with the liquid surface of the mortar 40 and the mortar adheres to the fixed refractory surface. The regular refractory 10 may be lowered straight toward the liquid surface of the mortar. At that time, from the viewpoint of ensuring the contact between the surface of the fixed refractory and the mortar, the fixed refractory is placed in the mortar until the coated surface of the fixed refractory falls below the liquid surface of the mortar by 3 mm or more. It is preferable to immerse in On the other hand, if it is excessively immersed in the mortar, adhesion of the mortar to the side surface that does not need to be applied cannot be ignored, so it is immersed until the coated surface of the standard refractory is 20 mm or more below the liquid level of the mortar. Preferably not. In other words, the immersion depth of the coated surface is preferably 3 to 20 mm. Also, if the mortar adheres to the hand 22 holding the fixed refractory 10, the adhered mortar may be dried and fixed, which may hinder the handling of the fixed refractory, so the hand 22 should not be brought into contact with the mortar. Is preferred.

  In addition, from the viewpoint of uniformly attaching the mortar to the surface of the fixed refractory, it is preferable to reciprocate the fixed refractory 10 in a state where the fixed refractory 10 is in contact (immersion) with the mortar 40. The reciprocating motion can be arbitrary, such as vertical motion, swinging, and rotating. However, as indicated by arrows in FIG. 4, the reciprocating motion is reciprocated up and down in a plane perpendicular to the liquid surface of the mortar 40. It is preferable to move the mortar so that the mortar fits the entire coating surface, and to reciprocate in a plane parallel to the liquid surface to separate the mortar from the mortar liquid surface while preventing the mortar from peeling. For the reciprocating rotary motion, a rotary shaft provided in the arm 21 can be used.

  The operation of the attaching toro by the dove attaching can be performed as follows, for example. First, the regular refractory is immersed in the mortar until the coated surface is 10 mm below the mortar liquid surface, and the reciprocating up and down movement is performed three times with a stroke of 3 mm. Next, the reciprocating rotary motion is pulled up vertically at a speed of 2 mm per reciprocating rotational motion while performing the reciprocating rotational motion in a range of ± 13 ° with respect to the vertical central axis of the standard refractory. The reciprocating rotational motion is repeated until the coated surface is completely separated from the mortar liquid surface.

  Similar to the first embodiment, also in the method of this embodiment, the nozzle can be reliably applied without interfering with the fixed refractory. Moreover, in the method of this embodiment, since the arm robot for mortar application | coating is unnecessary, the apparatus required for the construction of a coke oven can be simplified.

(Fourth embodiment)
In the fourth embodiment of the present invention, when a standard refractory is stacked at a predetermined stacking position to build a coke oven, a mortar is placed on the fixed refractory in a state of being stacked at the stacking position using a robot. The mortar is applied using both the application method (greeting trowel) and the mortar application method using an attached trowel. As the mortar coating method using the attaching trowel, at least one of the mortar coating methods corresponding to the first to third embodiments can be used. Moreover, as a coating method by the above pick-up toro, for example, the method described with reference to FIG. 6 can be used.

  Here, the procedure will be described for the case where the standard refractories are stacked in the combination shown in FIG. In this example, 80-91 standard refractories are stacked one by one in this order at the positions shown in the figure. At that time, if the mortar application is performed only by the method of applying the mortar to the stacked regular refractories (greeting toro) as described with reference to FIG. 6, the following operation is performed.

(1) A standard refractory 80 is installed.
(2) Mortar is applied to the surfaces 80A and 80B.
(3) A fixed refractory 81 is installed.
(4) Mortar is applied to the surface 81A.
(5) A standard refractory 82 is installed.
(6) Mortar is applied to the surface 82A.
(7) A fixed refractory 83 is installed.

  Here, after the step (7), mortar is applied to the surfaces 83A and 83B, but the convex dowels present on the surface 83A and the nozzle interfere with each other. Mortar cannot be applied to the surface 83B.

  On the other hand, in the method of the present embodiment, the above steps (1) to (7) are performed by the pick-up trowel as described above, and the next step (7) is mortar on the fixed refractory 83 stacked. By applying mortar to the surface facing the surfaces 83A and 83B of the standard refractory 84 to be stacked next, and then installing it at the position shown in FIG. Stacking of standard refractories can proceed without problems. As described above, when adjacent fixed refractories are in contact with each other on two or more side surfaces, in particular, the fixed refractory whose top surface shape excluding the dowel is substantially T-shaped (81, 83, 88 in FIG. 5). , 86), the mortar coating method of the present invention is extremely effective.

  Here, mortar application to the fixed refractory 84 can be performed using any of the methods shown in the first to third embodiments. For the regular refractory 85 and later, all the parts that are difficult to greet due to interference with the nozzle, etc. can be applied by applying mortar using any one of the methods of the first to third embodiments. Can complete standard refractory stacking. In the example of FIG. 5, only one stage of the standard refractory has been described. However, when stacking a plurality of stages of regular refractories, mortar is also applied to the top surface of the regular refractories that are stacked. Is preferred.

  In this way, by combining the method of applying mortar to the stacked regular refractories (Gross Toro) and the method of applying mortar to the regular refractories before being stacked, the shape and arrangement of the regular refractories to be used Regardless of this, it becomes possible to reliably apply the mortar.

10-14 Fixed refractory 20 Fixed refractory holding arm robot 21 Arm 22 Hand 30 Mortar application arm robot 31 Arm 32 Dispenser 33 Mortar application nozzle 34 Opening 40 Mortar 50 Mortar supply means 60 Hose 70 Container 80-91 Standard fireproof object

Claims (3)

A mortar application method for applying mortar to a fixed form refractory when building a coke oven by stacking the fixed form refractory at a predetermined stacking position,
Using at least one fixed refractory arm robot and at least one mortar application arm robot;
Applying mortar with the mortar application arm robot to at least one surface of the standard refractory before being stacked in the application position different from the stacking position by the standard refractory holding arm robot ,
The mortar application arm robot includes a mortar application nozzle having an opening of a predetermined width,
When the mortar is applied to at least one surface of the fixed refractory material before the stack by the mortar application arm robot, the width direction of the opening of the mortar application nozzle is set with respect to the moving direction of the mortar application nozzle. A mortar coating method in which the coating width of the mortar is adjusted by tilting . A mortar application method for applying mortar to a fixed form refractory when building a coke oven by stacking the fixed form refractory at a predetermined stacking position,
Use at least one mortar application arm robot,
Applying mortar with the mortar application arm robot to at least one surface of the standard refractory before stacking placed at an application position different from the stacking position ;
The mortar application arm robot includes a mortar application nozzle having an opening of a predetermined width,
When the mortar is applied to at least one surface of the fixed refractory material before the stack by the mortar application arm robot, the width direction of the opening of the mortar application nozzle is set with respect to the moving direction of the mortar application nozzle. A mortar coating method in which the coating width of the mortar is adjusted by tilting . A method of applying mortar to a fixed form refractory when building a coke oven by stacking the fixed form refractory at a predetermined stacking position,
Using at least one fixed refractory arm robot and at least one mortar application arm robot;
Applying mortar to at least one of the upper surface and the side surface of the fixed refractory in a state of being stacked at the stacking position, using the mortar application arm robot;
More mortar coating how according to claim 1 or 2, and a step of applying mortar to at least one surface of the fixed refractory before stacking, mortar coating method.

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