What are the materials and tools needed for the maintenance of coal conveying belts?

1. Cold vulcanized materials: including cold adhesive, repair strip, rubberloc liquid rubber, repair adhesive and other <>

2. Hot vulcanization materials: including hot vulcanizing agent, RIT core glue, surface adhesive, 3. Mechanical materials: belt buckle, flat belt buckle.

Coal conveyor belt repair tools:

1. Hand tools: all kinds of knives, compaction rollers, tape measures, marking pens, etc.

2. Power tools: angle grinder, hot air blower, vulcanizer, repairer, etc.

3 belt splints, 3 hoists, 2 hoisting belts, conveyor belt joints vulcanizer, rubber, glue, several groups of cold adhesive glue, and small tools.

The daily maintenance of the coal conveying belt depends on what kind of maintenance it is, generally speaking, it is divided into three types: coal conveying belt repair, coal conveying belt cold and hot vulcanization joints and drum lagging of the pulley.

1.Coal conveyor belt repair

Surface repair. Tools used: L1202 angle grinder, tungsten carbide grinding disc, cleaning brush, brush, plastic bucket, compaction roller, knife, rubber hammer.

Materials used: cold vulcanized glue SK313, RIT repair strip.

Upper and lower punctures and hole repairs.

Tools used: angle grinder, tungsten carbide grinding disc, cleaning brush, brush, plastic bucket, compaction roller, knife, rubber hammer, T2 glue gun.

Materials used: cold vulcanized glue SK313, RIT repair strip, rubberloc liquid rubber.

2.Coal conveying belt joints

Hot vulcanization joint of coal conveying belt.

Tools used: vulcanizer (including upper and lower vulcanizing plates, 1 pressure pump, 1 pressure water pipe, 2 heating wires, 2 wood boards and several screws and wrenches), rectangular ruler, G-shaped card, knife, screwdriver, clamp, rubber hammer, ruler, steel plate ruler, marker, brush, plastic bucket, cleaning brush, angle grinder, tungsten steel grinding disc, wire brush.

Materials used: vulcanized paper, RIT hot vulcanized core adhesive, RIT hot vulcanized surface adhesive, hot vulcanized glue SK823.

Cold vulcanization joint of coal conveying belt.

Tools used: iron plate, rectangular ruler, G-shaped card, knife, screwdriver, clamp, rubber hammer, ruler, marker, brush, plastic bucket, cleaning brush, angle grinder, tungsten steel grinding disc, wire brush, steel ruler, compaction roller.

Materials used: cold vulcanized glue SK313, RIT repair strip.

3.Pulley lagging

Tools used: glue shovel, grinder, grinding disc, wire brush, cleaning brush, tape measure, knife, marker, brush, rubber bucket, rubber hammer, powder box, compaction roller, carving machine.

Materials used: cleaning agent, metal primer, RIT diamond rubber sheet, cold vulcanized glue SK313.

The daily inspection and repair of the drum of the coal conveying system usually check whether the running belt is damaged, scratched, torn or leaked, and the belt deviates. Then, according to the maintenance situation, it is judged whether it needs to be repaired. The required material is usually cold vulcanized glue with belt repair strips, which are repaired in a laminated manner.

Tools for grinding: glue shovel machine, grinding machine, grinding disc, wire brush, cleaning brush, tape measure, knife, marker, brush, plastic bucket, rubber hammer, powder box, compaction roller, engraving machine.

Materials used: cleaning agent, metal primer, RIT diamond rubber sheet, cold vulcanized glue SK313.

The lagging should be uniform, complete and not easy to crack, the friction should be large, and the herringbone, diamond-shaped and parallel-shaped grooves should be selected according to the operation requirements of the coal conveyor belt.

The coal mine is relatively closed from the underground environment, and the belt maintenance personnel should ensure that the conveyor belt is shut down for construction. It's possible that this sentence is nonsense, but I still want to say it.

Then when operating, try to ensure the ventilation effect of the operating part. While ensuring security, it accelerates the speed of glue fixed lines.

When choosing materials, try to choose glues and repair strips that are fireproof and flame retardant. Like some of the more commonly used supporting operating materials, such as SK313 matching RIT belt repair strip, the two can produce a chemical reaction to ensure adhesion, and the glue has a flame retardant effect to ensure self-extinguishing and enhance the safety of operation.

When operating, it is necessary to pay attention to the operation details, such as the grinding thickness is generally not less than the thickness of the repair strip, so that the repair strip can be laminated in the form of inlay. After grinding, the surface of the belt must be fully cleaned to prevent impurities from remaining, otherwise it will affect the infiltration effect of the glue and affect the adhesion.

Underground belt workers, is it a first-line or second-line, is it dangerous?

Pay attention to the fact that others are copying during the exam, and you should also be able to copy it.

The regulation is flame retardant belt conveyor. That's the fundamental one. There's a lot more to the categories! There are constriction types; Bendable;...I can't call the full name at the moment.

What safety measures should be listed on the work ticket for the maintenance of the replacement roller of the coal conveying belt?

Classification of safety sources According to the characteristics of the belt conveyor in the concentrator, we divide the safety source of the belt conveyor into 7 categories according to the structural characteristics of the belt conveyor, namely: conveyor belt, driving device, electric drum, transmission, redirection, tensioning roller vertical cylinder, idler, cavity disturbance bending cleaner, unloading device, etc. 3. The general provisions of safety precautions strictly prohibit the load start of the belt conveyor, such as in operation, when the machine must be shut down due to power failure or other reasons, the load on the belt conveyor must be cleared before it can be started again.

It is strictly forbidden to cross the belt, and the crossing platform must be set up; When the belt is running, it is strictly forbidden to hit with hands or objects, adjust the roller, sort out the cleaner, remove the drum rolling area ore and remove the funnel deposit, when it must be handled, it is necessary to stop the machine and have a special person to take care of it, and strictly implement the delisting system of Wu Stuffy Electric Hanging, especially remind that when clearing the funnel deposit, there must be a person outside to monitor, and when the height exceeds 2 meters or the operation is inconvenient, the operator should fasten the safety belt. When removing the belt or installing a new belt, a special tool should be set up to clamp one end of the belt, slowly loosen or lift, and when the oblique belt is replaced, it is strictly forbidden to stand at the bottom; When hoisting is required for maintenance, it is necessary to strictly abide by the safety of aerial work and ensure the safety and reliability of hoisting equipment; When the overhaul is completed, the personnel on the belt and close to the belt conveyor should ensure that all of them leave before they can be tested; There should be a special person to command and operate during the test; If there is an abnormal situation in the test, it is necessary to stop the machine to deal with it, and after the treatment is completed, it can be tested again, and in the test, the ore should be given from less to more, and the ore should be evenly fed. All participants are required to wear labor protection equipment.

4. Safety precautions: The replacement of belts, joint bonding, surface glue layer treatment, edge defect treatment, and the whole or partial replacement of belts according to different conditions and requirements, before the replacement, the mobile management office will make a complete set of safe and feasible replacement measures and specific terms. Joint bonding is not a special emergency, we require that the bonding of all joints should be carried out by vulcanization bonding, and the specific vulcanization methods and requirements will be issued at the same time as an annex to this matter; The treatment of the top adhesive layering, the surface adhesive layer treatment and the edge defect treatment used in the treatment of edge defects shall be carried out in the shutdown state, and the power outage and delisting system shall be carried out in strict accordance with the items. The personnel involved in the maintenance shall wear labor protection equipment as required and carry out the operation as required; When you're done, press .

8 requirements for commissioning. The overhaul drive device of the drive device includes motor, high-speed shaft coupling, reducer, low-speed shaft coupling, etc., all belt conveyors in our factory in addition to 4, transfer belt, 5, mill 1 belt conveyor, all contain the above devices. When overhauling the motor, it is necessary to stop the power inspection, and the maintenance can only be carried out after the implementation of the hanging and delisting system; When overhauling the reducer, execute the item first, pay attention to the ground slippage, and remove the high and low speed shaft coupling.

Now many coal plants have used conveyor belts to transport materials, but they don't know how to repair the material scratches the conveyor belt, and the conveyor belt scratches are divided into two types, one is penetrating and the other is not penetrating. The two types of patching methods are basically the same, and the specific steps are as follows:

Non-penetrating scratches:Use a high-power low-speed angle grinder with tungsten carbide grinding disc to polish the damaged part, then use the cleaning agent SK353 to clean the grinding surface, mix the cold vulcanized glue SK313 and the curing agent evenly according to the proportion, brush the glue on the damaged part, and paint it again after it dries, and also paint a layer of cold vulcanized glue on the adhesive surface of the repair strip, when it is slightly sticky to the back of the hand, the repair strip is attached to the damaged part, and the compaction roller can be compacted.

Penetrating scratches:The steps are basically the same as those for penetration, except that the patch strip is pasted at the bottom first, and the rest are the same.

The conveyor belt used for coal transportation will choose a thicker conveyor belt, and good materials should be used for repair, otherwise it may not be as simple as scratching next time, and it is not impossible for the conveyor belt to break.

Belt scratches or tears in the coal conveying system should be regarded as a relatively common belt damage, and the repair is usually carried out by rapid cold vulcanization, which can not only ensure the repair effect, but also ensure the repair efficiency.

Cold vulcanization repair is usually carried out on-site by cold vulcanized glue with RIT belt repair strip or rubber repair agent filling. Among them, cold vulcanized glue with repair strip is usually used for large-scale scratch and tear repair, while rubber repair agent is mostly used for damage or small-scale scratch repair.

At present, most of the commonly used supporting materials are cold vulcanized glue, similar to the imported adhesive SK313 with a semi-vulcanized layer repair strip for use, and the combination of the two can form a vulcanization reaction to further ensure the adhesion between the belt and the repair strip.

For on-site operation, it is usually necessary to polish and clean the scratched or torn parts of the belt, and then apply cold vulcanized glue to the scratched parts, and then brush them once after drying, and at the same time apply cold vulcanized glue on the adhesive surface of the belt repair strip 1 time, and when it is slightly sticky to the back of the hand, the repair strip is attached to the scratched part and rolled with a compaction roller.