The blasting work surface is accepted as a safety technical measure

(1) Overview of the work surface

1. Geological conditions of the working face

Things to work long, coal thickness, tilt angle, top and bottom slate and the like.

2, the work surface support situation

Support form and parameters, pillar and top beam model, roofing material, working face mining, etc.

3. Other matters that need to be explained

(2) Technical solutions and requirements

1. Collection range

Explain the scope of the collection and the equipment materials to be recycled.

2, collected as a technical solution

According to the mining technical conditions of the working face, the technical plan for collection is included: the control of the high mining before the harvest, the order of the construction for the returning shed, the laying of the net, the control of the top distance, the working surface and the transportation routes of the two lanes.

3. Other technical requirements.

(3) Preparation before the collection

Preparation and use of local ventilators and air ducts, preparation of various materials, cleaning and maintenance of working surfaces, preparation of equipment and transportation routes, etc.

(4) Engineering quality and safety management requirements

1. Roof management measures and requirements

The initial support force of the working face pillar, the control top distance, the special bracket requirements for the shed, the pump pressure requirements, and other technical measures to be taken, such as the support of the special sections such as coal roof, coal bottom and fault, and the measures of returning the column.

2. Safety facilities management and requirements

Anti-back rope, horizontal pin, etc.

3. Management and requirements of “one pass and three defenses”

Local ventilation system management measures and requirements, gas monitoring and management requirements, comprehensive dust prevention, anti-natural fire management requirements.

4. Transportation safety management requirements

Requirements for outbound transportation, loading and inclined lane transportation of supporting materials.

5, emergency, spare material configuration

Emergency, spare material name, quantity and location requirements;

6. Construction and labor organization arrangements

7. Other management requirements

(5) Organizational measures

1. Established as a leading group

2. Main responsibilities of the leading group

The implementation and implementation of the acceptance measures, and the team members’ follow-up system.

(6) Drawings

1. Plan view of the roadway system of the working face

Mark the current mining and expected collection line position, and the two lanes recycling position.

2, the work surface support flat, sectional view

It is necessary to reflect the top time of the control.

(7) Attachments

Received as a meeting minutes and so on.

Double Shaft Hammer Mill

The double shaft Wood Hammer Mill has a large crushing output and uses internal cooling structure, which can avoid the damage to the hammer mill caused by high temperature during grinding

Double crushing chamber, double rotor, simultaneous positive and negative rotation, strong strike of double linear velocity in the center of material crushing, and axial air inlet and top air filling function.Efficiency is higher than ordinary Hammer Mill 35%~100%.

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Shandong Kingoro Machinery Co., Ltd , https://www.kingoromachinery.com