Safety technical measures for the use of the hotte

2022-09-23
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Safety technical measures for the use of air hammer and anchor bolt machine

what is the reason why the friction and wear experimental machine is so sad? This is a question worth pondering by everyone in the experimental machine industry. First, overview

the anchor rope supporting roadway needs to use air hammer or anchor bolt machine to drill anchor bolt holes in the tunneling process. In order to ensure safe production and prevent the accident of machines and tools tilting and injuring people during construction, this measure is specially formulated and must be strictly followed by the construction unit

II. Applicable conditions and form of use

1. Applicable conditions:

1) secondary protective measures must be taken to prevent the machines and tools from toppling when drilling in the roadway top (arch) and installing the top (arch) bolt (cable)

2) when the height of the upper anchor rod from the bottom plate exceeds 2m, anti collapse measures must be taken for the machines and tools during drilling and installing the anchor rod

2. Form of use:

1) when taking secondary protection measures, use reinforcement hooks and nylon ropes to protect the machines and tools

(1) reinforcement hook Φ 12mm reinforcement processing, one end is pinched into a hook, and the depth of the hook must ensure that it will not fall off when shaking after hanging on the anchor or steel belt, and the lower end of the hook head is welded or processed into one Φ A closed ring of about 50mm

(2) the overall length of the reinforcement hook can be processed into three types: 1000mm, 600mm and 200mm, and one of them can be selected according to the height of the on-site roadway

(3) the diameter of nylon rope shall not be less than 8mm, and the length shall not be less than twice the roadway height

(4) when in use, one end of the nylon rope passes through the ring of the reinforcement hook and is firmly tied to the upper part of the machine body, and the other end is pulled and loosened by a specially assigned person

2) several closed hooks (such as safety belt hooks) are used with closed pulleys together with nylon ropes. The rope passes through the pulley and is firmly connected with the hook. The upper pulley is hung on the top anchor or steel belt, and the two ends of the rope (which can be hooked) are firmly connected with the upper and lower parts of the machine, so that the rope and the machine body form a closed whole without toppling

(1) the requirements for secondary protection materials are the same as above

(2) after the secondary protection connection is completed, it must be ensured that there is no remaining rope and the rope must pass through the upper retainer of the anchor machine body

(3) the air hammer can be used according to this article, but all connecting parts must be firmly connected and checked frequently

3) site operators can choose to use different secondary protection methods according to the site conditions

III. safety technical measures

1 Before lifting the machine, one end of the nylon rope must be firmly tied to the machine body

2. When drilling the top anchor bolt eye, after determining the eye position, hang the reinforcement hook on the anchor or steel belt near the supporting anchor bolt nearest to the eye position; When anchoring the eye, hang the reinforcement hook on the supported anchor or steel belt within 200 ~ 500mm from the eye

3. After irrelevant personnel near the machines and tools evacuate to a safe place, the operator lifts the machines and tools for operation, and another person tightens the remaining rope between the machines and tools and the reinforcement hook (pull until the remaining rope is in a loose state, the same below)

4. With the continuous increase of drilling depth, the remaining rope shall be tightened in time. The other end of the nylon rope can be tied to the upper support steel belt or anchor, or the reinforcement hook processed by the above method (the bending length of one end of the hook shall not be less than 80mm) can be hung on the upper support steel belt or anchor, which can also be operated by a specially assigned person

5. Before the machines and tools are lowered, the nylon rope shall be tightened by a specially assigned person. With the continuous reduction of the height of the machines and tools, the operator shall slowly loosen the rope until the air legs of the machines and tools are fully retracted. When loosening the rope, it is strictly forbidden for the machines and tools to fall freely, and they must be loosened slowly with force

6. During the installation of anchor rods and anchor cables, anti overturning measures of machines and tools must be taken

7. When the height of the upper anchor rod from the bottom plate exceeds 2m, anti collapse measures must be taken for the machines and tools during drilling and installing the anchor rod

8. During the operation process, it is necessary to regularly check whether the binding and hook of each link of the anti collapse facilities are firm, and if any abnormality is found, it must be shut down in time for treatment

9. After the machines and tools with top anchor bolt (cable) holes are protected for the second time, the upper brushing operation shall not be carried out within 2m around when the machines and tools are running

its fresh-keeping function is much greater than the current plastic film 10 After the drill bit is drilled into the rock (or coal body) for 30 ~ 50mm, the personnel responsible for stabilizing the anchor rope machine must withdraw to a safe place behind the machine operator

11. When multiple machines and tools are used to construct top (arch) anchor bolts and anchor cables (holes) at the same time, the spacing between the two anchor bolts must be less than 1.2m, and the spacing between the two air hammers must not be less than 1m. The operator stands on the outer side of the two bolt machines

12. In the downhill roadway 2. If there is a long period of time after the experiment when the machine is not used for operation, the machine and tool operator Jinan new era Gold Testing Instrument Co., Ltd. will introduce you the operation skills of the wear resistance testing machine. The operator will stand above; When constructing the uphill roadway, personnel stand on the (outer) side of the machines and tools

13. When the top plate is high, personnel can stand on the ladder and hang the reinforcement hook, and the ladder must be firmly supported by a specially assigned person

14. When the tunnel is facing the blast hole, after the machines and tools are protected for the second time, no one is allowed to work in front of the machines and tools, and the machines within 3M behind the machines and tools are not allowed to brush the upper

15. In order to prevent accidental injury accidents, operators should concentrate, do not whisper, always pay attention to the surrounding conditions, and shut down immediately in case of abnormalities

16. Do not arbitrarily change the purpose of various machines and tools or use them savagely

17. When the site conditions change and this measure cannot guide the production, the construction unit must take reliable safety protection measures again

IV. other unaccomplished matters must be carried out in strict accordance with the relevant provisions of the coal mine safety regulations, the coal mine safety technical operation regulations and the construction roadway excavation operation regulations

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