阅读说明：本技术 一种用于皮带输送机滚筒现场包胶的方法 (Method for on-site rubber coating of belt conveyor roller ) 是由 沈季国 杨成典 张风涛 林安飞 常永利 王振 王东旭 马忠华 郭永刚 于 2021-07-01 设计创作，主要内容包括：本发明实施例公开了一种用于皮带输送机滚筒现场包胶的方法,其特征在于,包括：步骤1：将所述滚筒位于皮带内侧相对所述皮带的露出表面清理干净,并对所述露出表面进行磨平处理；步骤2：向所述露出表面涂抹胶水；步骤3：待所述胶水干燥后,再次向所述露出表面涂抹胶水,并对胶板待粘贴侧涂抹胶水；步骤4：在所述露出表面划起始线；步骤5：参考所述起始线,将所述胶板粘贴在所述露出表面上,在所述胶板的表面划线,对所述胶板进行裁切形成覆盖在所述露出表面的胶板片。本发明的技术方案通过对未拆卸的滚筒进行分段式的包胶操作,可以实现在有限的空间内,对驱动卸料滚筒表面进行分段包胶。(The embodiment of the invention discloses a method for field rubber coating of a roller of a belt conveyor, which is characterized by comprising the following steps: step 1: cleaning the exposed surface of the roller, which is positioned on the inner side of the belt and opposite to the belt, and grinding the exposed surface; step 2: coating glue on the exposed surface; and step 3: after the glue is dried, coating the glue on the exposed surface again, and coating the glue on the side to be adhered of the rubber plate; and 4, step 4: marking a starting line on the exposed surface; and 5: and referring to the starting line, adhering the rubber plate on the exposed surface, scribing a line on the surface of the rubber plate, and cutting the rubber plate to form a rubber plate sheet covering the exposed surface. According to the technical scheme, the sectional type rubber coating operation is carried out on the roller which is not disassembled, so that the sectional type rubber coating can be carried out on the surface of the driving unloading roller in a limited space.)

1. A method for in situ encapsulation of a belt conveyor drum, comprising:

step 1: cleaning the exposed surface (21) of the roller (20) which is positioned on the inner side of the belt (10) and opposite to the belt (10), and grinding the exposed surface (21);

step 2: applying glue to the exposed surface (21);

and step 3: after the glue is dried, coating the glue on the exposed surface (21) again, and coating the glue on the side to be adhered of the rubber plate;

and 4, step 4: drawing a start line on the exposed surface (21);

and 5: and adhering the rubber plate on the exposed surface (21) by referring to the starting line, scribing the surface of the rubber plate, and cutting the rubber plate to form a rubber plate sheet (30) covered on the exposed surface (21).

2. The method for field encapsulation of a belt conveyor roller as in claim 1 wherein step 5 further comprises:

after the adhesive sheet piece (30) covers the exposed surface (21), performing air exhaust operation, wherein the air exhaust operation specifically comprises the following steps: -repeatedly compacting said slabs (30) by means of compacting rollers, -striking said slabs (30) by means of rubber hammers, ensuring the degassing between said slabs (30) and said exposed surface (21).

3. The method for field encapsulation of a belt conveyor roller as in claim 1 further comprising:

step 6: rotating the drum (20) to form a new exposed surface (21);

and 7: repeating the operations of steps 1-6 until the encapsulation of the peripheral side surface of the drum (20) is completed.

4. The method for field encapsulation of a belt conveyor roller as in claim 3 further comprising:

and 8: filling the inter-sheet rubber joint (40) covered on the surface of the roller (20).

5. The method for the in-situ encapsulation of a belt conveyor roller according to claim 4, characterized in that step 8 is embodied as:

polishing the joints (40) between the rubber plate pieces to form a certain groove, and cleaning and smearing cold vulcanizing agent on the surface of the groove;

and (3) cold-bonding the joints (40) between the rubber plate sheets by using a repairing strip.

6. The method for field encapsulation of a belt conveyor roller as in claim 4 further comprising:

and step 9: trimming the edge of the film sheet (30) covering the surface of the roller (20).

7. The method for the in situ encapsulation of a belt conveyor roller according to claim 1,

in the step 5, the adhesive sheet piece (30) covers the exposed surface (21), and the covered area of the adhesive sheet piece (30) accounts for 1/3-1/4 of the area of the peripheral side of the roller (20).

8. The method for the in situ encapsulation of a belt conveyor roller according to claim 1,

the glue is cold vulcanizing agent glue.

9. The method for the in situ encapsulation of a belt conveyor roller according to claim 1,

before glue is coated on the exposed surface (21), a metal treatment agent is coated on the exposed surface (21) for treatment.

Technical Field

The embodiment of the invention relates to the field of roller encapsulation, in particular to a method for field encapsulation of a roller of a belt conveyor.

Background

In order to ensure the driving performance and the transmission effect of the belt conveyor and ensure the safe and reliable operation of the rollers, the surfaces of the driving rollers of the belt conveyor and the surfaces of the important bend rollers need to have good rubber surfaces, if the rubber layers are worn, rubber lining maintenance needs to be carried out in time, and the faults of slipping and deviation of the belt, roller breakage and the like are avoided.

Belt conveyor driving roller compares other position cylinders its rubber coating layer and changes wearing and tearing more easily, and especially the drive cylinder of unloading is installed inside the coal hopper that falls, and it is very difficult to dismantle alone and change the head cylinder, and the narrow difficult operation construction of field maintenance rubber coating space, in order to carry out the lining maintenance with wearing and tearing cylinder, the common way is that the drive cylinder of unloading and conveyer belt are changed simultaneously. If the conveyor belt has not reached the end of life standard, it is obviously uneconomical to replace the conveyor belt in advance in order to replace the head rollers, so that the optimal maintenance solution for the head rollers is field maintenance.

The difficulty of field maintenance of the rubber coating layer of the driving discharging roller is that the space of the conveying belt is narrow, the tension force between the conveying belt and the roller is large, the roller and the belt cannot be isolated and independently coated, the implementation difficulty is high according to the traditional rubber coating process under the condition of the prior art, and a new method for field rubber coating is urgently needed.

Disclosure of Invention

Therefore, the embodiment of the invention provides a method for field rubber coating of a roller of a belt conveyor, which aims to solve the problems of high process implementation difficulty and material waste in roller rubber coating in the prior art.

In order to achieve the above object, an embodiment of the present invention provides the following:

in one aspect of an embodiment of the present invention, there is provided a method for in situ encapsulation of a belt conveyor drum, comprising:

step 1: cleaning the exposed surface of the roller, which is positioned on the inner side of the belt and opposite to the belt, and grinding the exposed surface;

step 2: coating glue on the exposed surface;

and step 3: after the glue is dried, coating the glue on the exposed surface again, and coating the glue on the side to be adhered of the rubber plate;

and 4, step 4: marking a starting line on the exposed surface;

and 5: and referring to the starting line, adhering the rubber plate on the exposed surface, scribing a line on the surface of the rubber plate, and cutting the rubber plate to form a rubber plate sheet covering the exposed surface.

Further, step 5 further comprises:

after the adhesive sheet piece covers the exposed surface, carrying out air exhaust operation, wherein the air exhaust operation specifically comprises the following steps: and repeatedly compacting the rubber sheet piece by using a compaction roller, and knocking the rubber sheet piece by using a rubber hammer to ensure the exhaust between the rubber sheet piece and the exposed surface.

Further, the method for in-situ encapsulation of a belt conveyor roller further comprises:

step 6: rotating the drum to form a new exposed surface;

and 7: and (4) repeating the operations of the steps 1 to 6 until the encapsulation of the peripheral side surface of the roller is completed.

Further, the method for in-situ encapsulation of a belt conveyor roller further comprises:

and 8: and filling the joints among the rubber plate sheets covered on the surface of the roller.

Further, step 8 specifically comprises:

polishing the joints among the rubber plate pieces to form a certain groove, and cleaning and smearing cold vulcanizing agent on the surface of the groove;

and (5) carrying out cold bonding on the seams between the rubber plate sheets by using a repairing strip.

Further, the method for in-situ encapsulation of a belt conveyor roller further comprises:

and step 9: trimming the edge of the rubber plate covered on the surface of the roller.

Further, in step 5, the rubber sheet covers the exposed surface, and the covered area of the rubber sheet occupies 1/3 to 1/4 of the area of the periphery side of the roller.

Further, the glue is cold vulcanizing agent glue.

Further, before glue is coated on the exposed surface, a metal treatment agent is coated on the exposed surface, and the exposed surface is treated.

The embodiment of the invention has the following advantages:

the embodiment of the invention discloses a method for field rubber coating of a roller of a belt conveyor, which can realize sectional rubber coating on the surface of a driving unloading roller in a limited space by performing sectional rubber coating operation on an undetached roller and simultaneously save manpower and material resources waste caused by detaching the roller. The rubber coating method greatly shortens the maintenance time, ensures the continuity and stability of coal conveying production and maintenance operation, and provides effective guarantee for unit coal supply and blending coal combustion.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

Fig. 1 is a schematic flow diagram of a method for in situ encapsulation of a belt conveyor roller according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of drum encapsulation provided by an embodiment of the present invention;

fig. 3 is another schematic structural diagram of drum encapsulation provided by the embodiment of the invention.

In the figure: 10-belt, 20-roller, 21-exposed surface, 30-rubber sheet piece, 40-rubber sheet piece joint.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for clarity of description, and are not intended to limit the scope of the present invention, and changes or modifications in the relative relationship may be made without substantial changes in the technical content.

Examples

As shown in fig. 1, 2, and 3, embodiments of the present invention provide a method for in situ encapsulation of a belt conveyor roller, comprising the steps of:

step 1: the exposed surface 21 of the belt 10 is cleaned by cleaning the rollers 20 located inside the belt 10 and by smoothing the exposed surface 21. Optionally, as shown in fig. 2, the residual glue and rust on the exposed surface 21 of the driving roller 20 on the inner side of the belt 10 are cleaned, polished uniformly, polished to form a bright surface, the surface of the driving roller 20 is cleaned with a brush, and then repeatedly cleaned with a cleaning agent until the surface is free of any oil stain and dirt, and the surface of the driving roller 20 is kept dry for 5 minutes. Further, in the present embodiment, the surface of the drum 20 subjected to the cleaning and smoothing process in step 1 may be only a part of the exposed surface 21.

Step 2: glue is applied to the exposed surface 21. And step 3: and after the glue is dried, coating the glue on the exposed surface 21 again, and coating the glue on the side to be adhered of the rubber plate. Specifically, the application of a cold vulcanizing agent is carried out: the first time of coating the cold vulcanizing agent glue by using a brush is required to keep uniform coating thickness, all parts to be bonded on the exposed surface 21 are covered, no flow mark and no omission exist, the operation is rapid, the drying lasts for more than 30 minutes, and the complete drying is ensured. In the second pass, the roller 20 and the blanket are applied simultaneously and dried to a slightly sticky back for the next step. Optionally, the glue is a cold vulcanizing agent glue. The cold vulcanization adhesive is mainly applied to cold bonding joints of belts, belt repair, cold encapsulation of rollers and the like.

And 4, step 4: a start line is drawn on the exposed surface 21. Alternatively, a start line is drawn by a tape measure or a bullet line box, specifically, a start line parallel to the central axis direction of the drum 20.

And 5: referring to the start line, the rubber plate is pasted on the exposed surface 21, the surface of the rubber plate is scribed, and the rubber plate is cut to form a rubber plate piece 30 covering the exposed surface 21. Specifically, one side of the rubber plate is aligned with the drawn starting line, the rubber plate is pushed towards the lower part of the roller 20 to cover the 1/3-1/4 surface of the roller 20, the line is drawn and cut according to the line box, then the repairing part is repeatedly compacted by a compaction roller, the rubber plate part is beaten by a rubber hammer, and the air exhaust is ensured.

In step 5, the rubber sheet 30 covers the exposed surface 21, and the area covered by the rubber sheet 30 accounts for 1/3 to 1/4 of the area of the circumferential side of the roller 20.

In an embodiment of the present invention, step 5 further includes: after the film sheet 30 is covered on the exposed surface 21, the air exhausting operation is performed, specifically: the blanket 30 is repeatedly compacted by a compaction roller and the blanket 30 is struck by a rubber hammer to ensure venting between the blanket 30 and the exposed surface 21.

In other embodiments, the method for in situ encapsulation of a belt conveyor drum further comprises:

step 6: the drum 20 is rotated to form a new exposed surface 21. Specifically, the drum 20 is driven to rotate, and the adhesive surface that has completed the bonding is rotated counterclockwise to a position above the center of the drum.

And 7: the operations of steps 1-6 are repeated until the wrapping of the peripheral side surface of the drum 20 is completed. Specifically, the previous procedure was repeated, including: removing residual glue, polishing, cleaning, drying, smearing a cold vulcanizing agent, marking and bonding.

Further, the method for in situ encapsulation of a belt conveyor drum further comprises:

and 8: the inter-blanket joint 40 covering the surface of the cylinder 20 is treated. The step 8 specifically comprises the following steps: polishing the seams 40 between the rubber sheets to form a certain groove, and cleaning and smearing cold vulcanizing agent on the surface of the groove; the inter-sheet joints 40 are cold bonded with a repair strip. In the embodiment, the following may be specifically mentioned: the seam between the rubber sheet 30 and the rubber sheet 30 is processed: grinding the joint 40 between the rubber plates by using an angle grinder matched with a tungsten steel sheet to form a certain groove, cleaning, coating a cold vulcanizing agent, and cold bonding the rubber joint by using a repairing strip with the width of 150mm and the thickness of 2.5 mm.

The method for in situ encapsulation of a belt conveyor roller further comprises: and step 9: the edges of the blanket sheet 30 covering the surface of the cylinder 20 are trimmed. Specifically, performing edge trimming comprises: and cutting off the redundant rubber plate along one end face of the roller 20 by using a wallpaper cutter in a 45-degree direction, namely cutting off the excess materials at two ends of the rubber plate piece 30 relative to the roller 20. The roller 20 can be operated under light load after standing and curing for 6 hours, the longer the time is, the better the curing effect is, and finally the sectional type encapsulation repairing of the roller 20 is completed.

Optionally, before applying the glue to the exposed surface 21, a metal treatment agent is applied to treat the exposed surface 21. Specifically, the metal treatment agent is uniformly coated by using a brush, the metal treatment agent is not too thick, and glue is coated after drying for 30 minutes. The metal treatment agent is a generic term for chemical agents that perform various treatments on metal surfaces. The metal surface treatment comprises the base pretreatment of oil removal, rust removal, phosphorization, rust prevention and the like, and is prepared for a metal coating technology and a metal protection technology.

According to the technical scheme, the roller 20 which is not detached is subjected to sectional type rubber coating operation, so that sectional rubber coating can be performed on the surface of the driving discharging roller 20 in a limited space. Through the technical scheme of the invention, the sectional encapsulation of the encapsulation layer of the head roller 20 is realized, the characteristics of no damage to a conveying belt, convenient operation and good encapsulation effect are realized, the construction is convenient, and the rapid encapsulation of the roller 20 on site can be realized. The seam joint adopts the cold bonding form of the repairing strip, the seam bonding effect can be improved, the phenomenon that the seam is extruded and drilled into impurities such as coal dust and the like to cause peeling, damage and falling is avoided, and the technology has the advantages of low replacement cost of the rubber plate and small maintenance operation difficulty.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.