CN103620162B - Ventilation system repair bandage - Google Patents

Abstract

A ventilation system repair tape for a damaged portion of a ventilation pipe. The ventilation system repair tape comprises a first and a second side, wherein the first side comprises an adhesive material and can be used to join the damaged portion of the ventilation pipe when the ventilation pipe is in a ventilation and pressurized state to substantially prevent leakage through holes and cracks in the ventilation pipe portion.

Description

Ventilation system repair tape

technical field

The invention relates to a ventilation system repair tape.

Background technique

Ventilation systems for underground mining typically consist of a series of pipe sections interconnected and in communication with ventilation sources such as fans. Pipe sections are used to provide mine ventilation, especially in working areas.

Pipe sections used to provide mine ventilation are usually installed at the top of a mine shaft or decline. However, this makes the vent pipes vulnerable to cracking, especially if vehicles or other heavy equipment passes around the mine.

Once cracked, the vent pipe is usually repaired with needle and thread. Stitching the cracked area reduces the amount of leakage through the hole, but generally does not completely stop the leak. Additionally, repeated cracking in the same part of the pipe is common in high-traffic areas. The repeatedly repaired parts caused a large amount of ventilation gas leakage.

In addition, even if it can be sewn with needle and thread, it is difficult to completely stop the leak. Consequently, workers tend not to be concerned with patching small cracks or holes in vent ducts.

The present invention seeks to overcome, at least in part, the disadvantages of prior air duct repair methods described above.

Contents of the invention

The present invention provides a vent system repair tape for repairing a damaged vent duct, the repair tape comprising first and second sides, wherein the first side comprises an adhesive material capable of being damaged while the vent duct is in a vented state. Under the pressure of the ventilation air flow, it is used to join the broken part of the ventilation pipe so as to sufficiently prevent the leakage of the ventilation air through the holes and cracks in the part of the ventilation pipe.

Description of drawings

The present invention is illustrated by way of example below with reference to the accompanying drawings, wherein:

Figure 1 shows a section of a ventilation pipe installed in a mine with visible damage;

Fig. 2 is a section of a vent pipe similar to that in Fig. 1 installed in a mine repaired with vent pipe repair tape.

detailed description

Referring to Figure 1, there is shown a vent pipe section 12 in normal use. The ventilation pipe 12 is installed on the top of the mine shaft or the ramp to provide ventilation in the mine shaft. Due to the position of the pipe and the tight working environment in the mine, the ventilation pipe 12 is usually in close contact with the machines working in the mine. This intimate contact causes the vent tube to wear and possibly crack. As can be seen from Fig. 1, some holes 14 and cracks 16 are arranged on the ventilation pipe 12. Holes 14 and slits 16 reduce the effectiveness of ventilation in the mine due to leakage of ventilation airflow into areas where it is not needed.

FIG. 2 shows the ventilation pipe 12 in FIG. 1 repaired with the repair tape 10 when the ventilation pipe 12 is still in a ventilated state and subjected to the pressure of the ventilation airflow. The repair tape 10 is glued to the hole 14 and is shown at 18 . Repair tape 10 bonded to vent pipe 12 repairs crack 16 is shown at 20 .

The repair tape 10 is preferably made of a flexible and crack-resistant polymer material, such as polyethylene. In addition, the repair tape 10 may include several layers, where the layers are interwoven to increase resistance to cracking.

The first surface of the repair tape 10 is provided with adhesive. Through the adhesive (not shown in the figure) on the first surface, the repair tape 10 is closely attached to the ventilation pipe 12 . Once tightly fitted, apply pressure to maintain the fit with the repair tape 10 until the adhesive has achieved the desired bond strength, maintaining a tight fit between the vent pipe and the repair tape to sufficiently prevent leakage of the ventilation airflow inside the vent pipe .

According to another preferred embodiment of the present invention, the repair tape 10 may further include another layer of material that may serve as a reflective material. The reflective material in it provides a visual indication to heavy equipment operators of previously damaged areas of the ventilation pipe, so that they can move heavy equipment through the mine with more caution.

According to a preferred embodiment of the present invention, the adhesive used in the present invention can be various adhesives that can be used for bonding between the ventilation pipe and the repair tape. Contact with the repair tape creates a permanent bond between the vent and the repair tape .

According to a preferred embodiment of the present invention, the second adhesive should be applied on the repair tape 10 before the repair tape 10 is closely attached to the ventilation pipe.

The adhesive used for the repair tape 10 should preferably be a known adhesive that has been proven to bond to polymer compounds and has a short curing time. In addition, the adhesive used for the repair tape 10 is preferably a known adhesive that does not emit a noxious odor when cured.

The adhesive used for the repair tape 10 is preferably applied to the first side of the repair tape 10 during the manufacturing process and the repair tape 10 is subsequently wound into a roll. Preferably, the adhesive is temporarily bonded to the second side, but not permanently bonded to the second side. When the repair tape 10 needs to be used, the user can take the length suitable for repair.

During use, when the ventilation pipe segment 12 is damaged due to abrasion or cracking, according to the present invention, a piece of repair tape 10 is bonded to the ventilation pipe 12 to repair the damaged part.

According to the first embodiment of the invention, it is preferred to first clean the area around the hole 14 or crevice 16 to remove dirt or grease that may affect the performance of the adhesive. Once prepared, a length of repair tape 10 is cut to size and shape to cover the crack (overlap is allowed).

The repair tape 10 is snugly fitted around the hole 14 or crack 16 in the vent tube 12, thereby preventing further leakage of the ventilating air. Adhesives with a short curing time are preferred so that the adhesive does not need to hold the repair tape 10 in place for an extended period of time while the adhesive is curing.

According to another embodiment of the present invention, wherein the repair tape 10 has been rolled into a roll and its first side is coated with adhesive, the repair tape 10 can be cut to a suitable length and pasted in the same manner as in the above-described embodiments. The repair is done on the vent pipe 12. Pressure is applied to the overlapping area between the repair tape 10 and the vent tube 12 so that the two adhere.

When pasting the repair tape 10 , it is preferable to align the longest axis of the repair tape 10 with the longest axis of the hole 14 or the crack 16 . In some cases, such as when repairing very large holes or fissures, multiple sections of repair tape 10 may be snapped together to form a seal around the periphery of the hole 14 or fissure 16.

Modifications and alterations obvious to those skilled in the art are deemed to be within the scope of the present invention.

Claims (17)

1. the ventilation system repair bandage for damaged ventilation duct, it is characterized in that, described mending tape includes the first and second sides, some layers are had between described first, second side, wherein the first side comprises jointing material, can when described ventilation duct is in ventilation pressurized, for the damaged part of flexible engagement ventilation duct, to be substantially prevented from hole in ventilation duct part and slit leakage.

2. ventilation system repair bandage according to claim 1, it is characterised in that the size of described mending tape at least just is enough to cover damaged part.

3. ventilation system repair bandage according to claim 1, it is characterised in that described some layers become intertexture shape.

4. ventilation system repair bandage according to claim 2, it is characterised in that described some layers become intertexture shape.

5. ventilation system repair bandage according to claim 1, it is characterised in that described second side is made up of reflectorized material.

6. ventilation system repair bandage according to claim 2, it is characterised in that described second side is made up of reflectorized material.

7. according to ventilation system repair bandage any one of in claim 1-6, it is characterised in that described mending tape is made up of macromolecular material.

8. according to ventilation system repair bandage any one of in claim 1-6, it is characterised in that its main part is made up of polythene material.

9. ventilation system repair bandage according to claim 7, it is characterised in that its main part is made up of polythene material.

10. ventilation system repair bandage according to claim 7, it is characterised in that described second side is made up of macromolecular material, and binding agent will not permanent adhesive on this macromolecular material.

11. ventilation system repair bandage according to claim 10, it is characterized in that, described mending tape is rolled into web-like, is wherein applied to the binding agent on the first side and the second engagement sides, to keep described mending tape to be web-like, until user is by two surfaces separately.

12. the ventilation system repair bandage according to any claim in claim 1-6, it is characterised in that before being bonded on ventilation duct, the second binding agent is coated on described mending tape.

13. ventilation system repair bandage according to claim 7, it is characterised in that before being bonded on ventilation duct, the second binding agent is coated on described mending tape.

14. ventilation system repair bandage according to claim 8, it is characterised in that before being bonded on ventilation duct, the second binding agent is coated on described mending tape.

15. ventilation system repair bandage according to claim 9, it is characterised in that before being bonded on ventilation duct, the second binding agent is coated on described mending tape.

16. ventilation system repair bandage according to claim 10, it is characterised in that before being bonded on ventilation duct, the second binding agent is coated on described mending tape.

17. ventilation system repair bandage according to claim 11, it is characterised in that before being bonded on ventilation duct, the second binding agent is coated on described mending tape.