A method of constructing a balance damper

A damper, balanced technology, applied in earthwork drilling, mine/tunnel ventilation, mining equipment, etc., can solve the problems of time-consuming construction, poor reliability and difficulty of wooden dampers, saving material waste and improving penetration efficiency.

Inactive Publication Date: 2016-11-30
JIANGSU GUOTAI MACHNERY MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for building a balanced damper, which solves the problems of time-consuming and difficult construction of the existing damper, and the problem that the wall of the damper is easy to crack. question

Method used

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  • A method of constructing a balance damper
  • A method of constructing a balance damper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A method for constructing a balanced damper,

[0019] 1. Weld three seamless steel pipes with a diameter of 40mm, a wall thickness of 3.5mm, and a length of 2m at equal distances from the top frame and the side frames of the balance damper;

[0020] 2. According to the position where the balance damper is to be installed, select three anchor rods at the side of the road, and thread the protruding part of the anchor rod with three fixed rods with a diameter of 40mm, a wall thickness of 3.5mm, and a length of 1m. 3 anchor rods, connect the protruding part of the anchor rod with three fixed rods with a diameter of 40mm, a wall thickness of 3.5mm, and a length of 1m. One end of the fixed rod is provided with an internal thread that matches the thread of the anchor rod;

[0021] 3. Use a connecting rod with a diameter of 40mm, a wall thickness of 3.5mm, and a length of 4m to connect the fixed rods at the side of the road and the roof of the road through fasteners to form a r...

Embodiment 2

[0028] like figure 1 , 2 As shown, a method of building a balanced damper,

[0029] 1. Weld seamless steel pipe 1 on the top frame and side frames of the balance damper;

[0030] 2. Thread the fixed rod 2 to the protruding part of the anchor rod on the side of the road and the roof of the road, and one end of the fixed rod is provided with an internal thread that matches the thread of the anchor rod;

[0031] 3. Connect the fixed rod to the seamless steel pipe through the connecting rod 3 and the fastener;

[0032] 4. Lead the steel wire rope 5 from the door frame of the balance damper to connect with the ladder beam at the side of the lane;

[0033] 5. Use the support rod 4 to fix the temporary damper in the downwind direction of the roadway. One end of the support rod 4 is connected to the connecting rod through a fastener, and the other end is embedded in the bottom plate. The angle between the support rod and the bottom plate is 45-75 degrees;

[0034] 6. Use mesh to c...

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Abstract

The invention relates to a method for building a balance damper. The existing balance damper is welded to a seamless steel pipe, and a special fixing rod is used to extend the anchor rod, so that the balance damper is fixed in the roadway, and the time-consuming construction method of the existing damper is solved. , Difficulty, the problem that the damper wall is easy to crack, and it can also solve the problem of poor reliability and wind pressure difference when building a temporary wooden damper.

Description

technical field [0001] The invention belongs to the field of balance dampers, in particular to a method for building a balance damper. Background technique [0002] Underground coal mines often need to build dampers in the connecting lanes before the roadway is connected. At present, there are two main methods: 1. Use non-combustible materials (stone, yellow sand, cement) to build permanent dampers using the balance dampers with mature technology; 2. Use 200mm×200mm square and 5m long as a column, supplemented by wooden boards and air duct cloth to set up temporary dampers. The dampers built in the above two ways have the following disadvantages: 1. Due to the influence of the pressure from the roadway, the dampers of the new through-roads that use non-combustible materials are generally affected by the pressure of the roadway after a period of time, resulting in cracking of the wall and serious deformation of the door frame , the damper has problems such as lax closing and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F1/10
Inventor 李星明
Owner JIANGSU GUOTAI MACHNERY MFG CO LTD
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