JPH075907Y2 - Drive device for vertical wall cleaning device - Google Patents

Description

[Detailed Description of the Invention] << Industrial Application Field >> The present invention relates to a drive device in a cleaning device for removing deposits adhering to a vertical wall surface, particularly in a cylinder such as a spray dryer for manufacturing ceramic raw material powder. The present invention relates to a drive device in a self-propelled cleaning device that automatically cleans a peripheral surface.

<< Prior Art >> As a device for cleaning a vertical wall, the conventional practice has been 1-11140.
There is one disclosed in Japanese Patent Publication No. 92.

This is because the horizontal movement guide rails are arranged above and below the vertical wall surface, and the upper guide rail suspends and supports the laterally moving drive unit. A vertically moving guide member is arranged between the support base and a wiper attached to the guide member.

However, in this conventional cleaning device, the lateral movement mechanism is
Since the lower surface of the guide rail formed by the beam is used as the running surface, the cleaning device cannot be removed from the guide rail, and the cleaning device is always located inside the cylinder such as the spray dryer or hopper. In a powder forming device such as a spray dryer, the formed powder adheres to the cleaning device itself. Therefore, the conventional cleaning device should be used as a device for cleaning the adhered substances on the inner peripheral surface of the spray dryer. I couldn't.

In view of this, there has been proposed a device disclosed in Japanese Utility Model Laid-Open No. 62-123291 as a device for cleaning deposits adhering to the inner peripheral surface of a hopper or the like.

This is because a header is rotatably attached to a high-pressure water conduit, and a cleaning tool having a high-pressure water jet nozzle and a high-pressure water jet outlet for rotation drive formed on the peripheral side surface of the header is thrust into the hopper, By ejecting high-pressure water onto the inner surface of the hopper, deposits attached to the inner peripheral surface of the hopper are removed.

By the way, in the case of a spray dryer for producing ceramic raw material powder, the same spray dryer produces different ceramic raw material powders, but the ceramic slurry supplied to the spray dryer contains pasty ingredients as a binder. As a result, the adhering force on the inner wall of the spray dryer that was dried due to the jetting force was strong and could not be completely removed by jetting high-pressure water. If the ceramic raw material adhering to the inner peripheral surface of the spray dryer cannot be completely removed, another ceramic raw material powder adhering to the wall surface will be mixed into the ceramic raw material powder after replacement, resulting in a decrease in product purity. It becomes a problem to do.

For this reason, in a spray dryer for producing ceramic raw material powder, an operator is currently in the spray dryer with a wiping cleaning tool such as a mop, and cleans the inner peripheral surface of the spray dryer by input.

<Problems to be solved> It is not good for the worker to enter the cleaning chamber to clean the spray dryer, which causes poor working environment and sanitary problems. Since it is a big thing with a dozen meters or so, when cleaning manually, for example, an inner diameter of 7.4 m,
In the case of a spray dryer having an overall height of 11 m and a straight tube portion height of 4.5 m, a total of 14 hours were required for cleaning the inner surface of the straight tube portion, and the production efficiency of the ceramic raw material powder was also deteriorated.

The present invention has been made with this point in mind, and is a self-propelled type that can be attached to and detached from a hopper such as a spray dryer, and that can completely remove deposits adhering to the inner wall surface of the hopper such as a spray dryer. It is an object of the present invention to provide a drive device for a cleaning device.

<Means for Solving the Problems> In order to achieve the above-mentioned object, the present invention arranges a guide rail along a horizontal direction on a vertically arranged wall surface, and a washing machine unit can be driven and run on the guide rail. The washing drive unit of the washing machine unit is suspended and supported by a free roller that rolls along one side surface of the guide rail, a drive roller that contacts the other side surface of the guide rail, and a drive system that drives the drive roller. It is characterized in that either one of the drive roller and the free roller is configured to be movable back and forth with respect to the guide rail, and both rollers are configured to travel while sandwiching the side surface of the guide rail.

<Operation> In the present invention, the guide rail is arranged along the horizontal direction on the vertically arranged wall surface, the washing machine unit is suspended and supported by the guide rail so that the washing machine unit can be driven, and the traveling drive section of the washing machine unit is , A free roller that rolls along one side of the guide rail, a drive roller that contacts the other side of the guide rail, and a drive system that drives the drive roller, and guides either the drive roller or the free roller. Since it is configured to move forward and backward with respect to the rail, and to run while holding the side surface of the guide rail between both rollers, it is a drive roller or free roller configured to move forward and backward with respect to the guide rail. By removing the guide rail from the guide rail, it is possible to release the guide rail clamping between both rollers. It becomes possible to attach and detach with a simple operation.

<< Embodiment >> A drawing shows an embodiment of the present invention, FIG. 1 is a side view of a washing machine unit, and FIG. 2 is a front view thereof.

The washing machine unit (1) is configured to be detachably attached to the inner wall surface (3) of the straight tube portion of the spray dryer (2). Spray dryer (2)
Guide rails (4) are arranged on the inner peripheral surface (3) in two stages in the vertical direction along the circumferential direction. Each guide rail (4) is formed in an annular shape with a part cut away, and dogs of limit switches are formed at both ends of each guide rail (4).

The washer unit (1) has a traveling drive unit (6) that travels while straddling a guide rail (4) and sandwiching both side surfaces (5) of the cleaning unit, and is suspended below the traveling drive unit (6). It is formed with the cleaned cleaning part (7). Travel drive (6) is third
As shown in FIGS. 5 to 5, the base frame (8) and the base frame (8)
It has a movable table (9) which moves horizontally above. The base frame (8) is a base block (11) that supports a pair of free rollers (10) (10) rotatably around a vertical axis and a base block (supporting a cleaning unit (7) described later. 12) and the slide shaft (13) and the ball screw (14),
A moving table advancing / retreating drive motor (15) for rotationally driving the ball screw (14) is fixed to the base block (12). The movable table (9) is moved forward and backward in the horizontal direction with respect to the base frame (8) by a nut block (17) meshing with a slider (16) fitted on a slide shaft (13) of the base frame (8) and a ball screw (14). A movable drive roller (18) that rotates around a vertical axis on the movable base (9), a traveling drive gear motor (19) that drives the drive roller (18), and a pair of umbrellas. A power transmission device (21) composed of gears (20) (20) is supported. Then, the tip block (1
The free roller (10) (10) pivotally supported by 1) runs along the peripheral side surface (outer peripheral surface) of the guide rail (4) facing the inner peripheral surface (3) of the spray dryer (2). The drive rollers (18), which are arranged in the front and rear in a rolling state and are supported by the moving table (9), are a pair of free rollers (10).
It is arranged at a position corresponding to each other between the (10) and in contact with the inner peripheral surface of the guide rail (4).

Therefore, by moving the moving table (9) forward with respect to the base frame (8), a pair of front and rear free rollers (10) (10)
The inner and outer peripheral side surfaces of the guide rail (4) are sandwiched between the drive roller (18) and one drive roller (18), and the traveling drive unit is driven by the operation of the traveling drive gear motor (19) supported by the moving base (9). (6) will be moved horizontally along the guide rail (4).

As shown in FIG. 6, the cleaning section (7) is composed of a rolling roller support frame (22) and a cleaning brush holding frame (23). A rolling roller (25) that rolls on the upper surface of the guide rail (4) is rotatable around a horizontal axis at the tip of the fixed arm (24) that extends toward the inner peripheral surface (3) of (2). In addition to being pivotally supported, the traveling roller support frame (22) swingably connects and supports the traveling drive unit (6).
The cleaning brush holding frame (23) is vertically formed below the rolling roller support frame (22) so as to be orthogonal to the rolling roller support frame (22), and the cleaning brush holding frame (23) is sprayed. A pair of upper and lower brush support arms (27, 28) are horizontally swingably connected to the left and right side surfaces of the vertical column (26) located on the center side of the dryer, and the rotating brushes are respectively attached to the arms (27) (28). (29) is rotatably arranged.

One brush support arm (27)
a) (27b) rotatably supports the core shaft (30) of the first rotating brush (29a), and the first brush drive motor (31) fixed to the lower arm (27b) and the brush core shaft (30). And 30) are connected by a belt transmission (32) arranged in the lower arm (27b). The other brush support arm ((28)
Then, the upper side of the upper arm (28a) and the lower arm (28b)
The second rotating brushes (29b) (29c) are respectively arranged on the lower side and the second rotating brushes (29b) (29c) are fixed to the common rotating shaft (33), and the lower arm (28b) is fixed. The fixed second brush drive motor (34) and the rotating shaft (33) are linked by a belt transmission mechanism (35) arranged in the lower arm (28b). And this first rotating brush (29a)
And the two second rotating brushes (29b) and (29c), a portion of the first rotating brush (29a) near the upper end is the upper second rotating brush (2
9b) near the lower end and also the first rotating brush (29
The lower end portion of a) overlaps with the upper end portion of the lower second rotating brush (29c) in a side view.

Further, although not shown in the drawing, the cleaning section (7) has a cleaning liquid injection nozzle arranged outside the first rotating brush (29a).

In the washing machine unit (1) configured as described above, when the product is changed in the spray dryer (2), the overhead traveling crane (37) or the like is used to wash the inside of the spray dryer (2). The unit (1) is carried in, the traveling drive unit (6) of the washing machine unit (1) is engaged with the guide rail (4), the motor for moving the carriage back and forth (15) is operated, and the drive roller ( By pressing 18) on the guide rail (4), the washing machine unit (1) is suspended and supported on the guide rail (4). Then, the cleaning section (7)
Is swingably connected to the drive unit (6),
The cleaning part (7) swings toward the inner peripheral surface (3) of the spray dryer (2) by its own weight, and the rotating brush (29) of the cleaning part (7) contacts the inner peripheral surface of the spray dryer (2). You will win. In this state, the cleaning liquid is sprayed from the cleaning liquid jet nozzle by a command from the control device (38) to the dryer (2).
Of the washing machine unit (1) to the guide rail (4) by jetting it toward the inner peripheral surface (3) of the machine and simultaneously operating the traveling drive motor (19) and both brush drive motors (31) (34). The spray brush (2) is automatically run along with it, and the rotating brush (29) wipes off the adhered matter adhering to the inner peripheral surface (3) of the spray dryer (2). Then, when the limit switch detects that the washing machine unit (1) has reached one end of the guide rail (4), the traveling drive motor (19) is reversely rotated based on the detection signal and the guide rail (4) is moved backward. Then return to the original position.

Reference numeral (36) in the figure denotes a platform installed on the inner peripheral surface of the spray dryer (2), which serves as a foothold for the worker when the washing machine unit (1) is set on the guide rail (4). .

Although the free roller (10) is fixed and the drive roller (18) is movable forward and backward in the above embodiment, the drive roller (18) is fixed and the free roller (10) is movable forward and backward. May be. Further, in the above-mentioned embodiment, the device for cleaning the inner peripheral surface of the spray dryer (2) has been described. However, the inner peripheral surface of the vertical wall of tanks having a hopper and a large diameter cylindrical portion outside the spray dryer (2) is described. It can be used for a cleaning device that removes adhered deposits.

<Effect> In the present invention, the guide rail is arranged along the horizontal direction on the vertically arranged wall surface, the washing machine unit is suspended and supported by the guide rail so that the washing machine unit can be driven, and the traveling drive section of the washing machine unit is , A free roller that rolls along one side of the guide rail, a drive roller that contacts the other side of the guide rail, and a drive system that drives the drive roller, and guides either the drive roller or the free roller. Since it is configured to move forward and backward with respect to the rail, and to run while holding the side surface of the guide rail between both rollers, it is a drive roller or free roller configured to move forward and backward with respect to the guide rail. By removing the guide rail from the guide rail, it is possible to release the guide rail clamping between both rollers. It becomes possible to attach and detach with a simple operation.

As a result, the self-propelled washing machine unit can be mounted on the vertical wall surface only during the cleaning work, so that the washing machine unit does not become a new adhesion surface of the adhered matter, and the interior of the tank having the vertical wall surface The peripheral surface can be reliably cleaned.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a side view of a washing machine unit, FIG. 2 is a front view thereof, FIG. 3 is a perspective view of a drive unit, FIG. 4 is a side view of the drive unit, and FIG. FIG. 5 is a plan view of the drive unit, FIG. 6 is a perspective view of the cleaning unit, and FIG. 7 is a conceptual view of the cleaning device. DESCRIPTION OF SYMBOLS 1 ... Washer unit, 3 ... Vertical wall surface, 4 ... Guide rail, 6 ... (1) traveling drive part, 10 ... Free roller, 18 ...
Drive roller.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yuki Kayama 2-41 Tsukisan-cho Minato-ku Nagoya City Aichi Prefecture Kyoritsu Ceramic Raw Materials Co., Ltd. (72) Inventor Oguri Shuji 1 Shimosaka-cho, Mizuho-ku, Nagoya-shi, Aichi Prefecture 5 chome ONU General Electric Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A guide rail (4) is arranged along a horizontal direction on a wall surface (3) arranged vertically, and a washing machine unit (1) is suspended and supported by the guide rail (4) so as to be able to drive. , A drive for abutting the traveling drive unit (6) of the washing machine unit (1) on the free roller (10) rolling along one side surface of the guide rail (4) and the other side surface of the guide rail (4) A drive system for driving the roller (18) and the drive roller (18), and either the drive roller (18) or the free roller (10) is configured to be movable back and forth with respect to the guide rail (4). A drive device for a vertical wall surface cleaning device configured such that both rollers (10) (18) sandwich the side surface of the guide rail (4) for traveling.