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Hot welding plate of thermofussion welding machine for underground coal mine

A hot-melt welding machine and hot-welding technology, which is applied in the field of hot-welding plates, can solve problems that affect mine operation safety, ignition, arc phenomenon, gas explosion, etc., and achieve electric sparks caused by static electricity, good conductivity, and structural design reasonable effect

Inactive Publication Date: 2014-09-10
SHANDONG BORUI TONG PLASTIC IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When working in underground mines, the concentration of gas in underground mines is relatively high, and the connection ends between resistance heating wires, temperature sensors and cables are exposed, and sparking and arcing are prone to occur during power transmission, power failure and use. , affecting the safety of mine operations
At the same time, the body of the hot plate is made of non-explosion-proof materials, which can easily ignite the gas in the mine due to sparks generated by friction and impact, resulting in a gas explosion

Method used

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  • Hot welding plate of thermofussion welding machine for underground coal mine
  • Hot welding plate of thermofussion welding machine for underground coal mine
  • Hot welding plate of thermofussion welding machine for underground coal mine

Examples

Experimental program
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Effect test

Embodiment 1

[0019] Such as Figure 1 ~ Figure 2 As shown, the present invention includes a hot plate body 1, in which several resistance heating wires 2 and a temperature sensor 3 are arranged, and the hot plate body 1 is made of explosion-proof aluminum. An explosion-proof wiring cavity 4 is arranged on the upper part of the hot plate body 1 , and an explosion-proof cover 5 for closing the explosion-proof wiring cavity 4 is arranged on the top of the explosion-proof wiring cavity 4 . The joint surface of the explosion-proof wiring chamber 4 and the explosion-proof cover body 5 is an explosion-proof surface 14 on which a conductive layer is arranged. Both the inner surfaces of the explosion-proof wiring chamber 4 and the explosion-proof cover 5 are provided with an arc-extinguishing paint layer. A bracket 6 is arranged in the explosion-proof wiring cavity 4, and several terminal posts 7 connected with the resistance heating wire 2 and the temperature sensor 3 are arranged on the bracket ...

Embodiment 2

[0021] Such as Figure 3 ~ Figure 4 As shown, the difference between this embodiment and Embodiment 1 is that three cable passages are uniformly arranged on the top of the anti-riot wiring cavity 4 . The cable channel includes a connecting sleeve 10 arranged on the top of the anti-riot wiring cavity 4. The connecting sleeve 10 communicates with the riot-proof wiring cavity 4. A sealing rubber ring 11 is provided in the connecting sleeve 10, and the connecting sleeve above the sealing rubber ring 11 10 is provided with a sealing plate 12, and the lower end of a trumpet-shaped interface sleeve 13 extends into the upper end of the connecting sleeve 10 and is threadedly connected with it. The other end face is in contact with the sealing rubber ring 11.

[0022] Before use, unscrew the horn-shaped interface sleeve 13 on one of the cable passages from the connection sleeve 10, take out the sealing plate 12, and stretch the cables of the plastic pipe welding device into the explosi...

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Abstract

The invention relates to a hot welding plate of a thermofussion welding machine for an underground coal mine. A hot plate body is made from anti-explosion aluminum, an anti-explosion wiring cavity is formed in the upper part of the hot plate body, an anti-explosion cover body which is used for sealing the anti-explosion wiring cavity is arranged at the top end of the anti-explosion wiring cavity, the combining surface of the anti-explosion wiring cavity and the anti-explosion cover body is an anti-explosion surface, a conducting layer is arranged on the anti-explosion surface, arc extinguishing paint layers are respectively arranged on the inner surfaces of the anti-explosion wiring cavity and the anti-explosion cover body, a bracket is arranged in the anti-explosion wiring cavity, a plurality of binding posts which are connected with a resistance heating wire and a temperature sensor are arranged on the bracket, a grounding screw is arranged in the anti-explosion wiring cavity, two handles are respectively arranged on both sides of the hot plate body, and a plurality of sealed cable channels are communicated with the anti-explosion wiring cavity. The hot welding plate has the advantage of reasonable structural design, explosion suppression and prevention can be effectively realized, the sparking and arc phenomena of a terminal stud are prevented, and underground gas ignition caused by sparks generated by friction and striking of the hot plate body is avoided so as to avoid gas explosion.

Description

Technical field: [0001] The invention relates to a thermal welding plate of a thermal fusion welding machine used in underground coal mines. Background technique: [0002] At present, the heat welding plate used for the existing plastic pipe welding device includes a heat plate body, and a resistance heating wire and a temperature sensor cast in the heat plate body, wherein the terminals of the resistance heating wire and the temperature sensor are connected to the electric control through the cable. The box is connected, and the temperature sensor sends a signal to the electric control box, and the electric control box controls the on-off of the resistance heating wire to realize the heating of the hot plate body, and uses the hot plate body to heat the nozzle of the plastic pipe. Finally, the nozzle butt welding between plastic pipes is realized. When working in underground mines, the concentration of gas in underground mines is relatively high, and the connection ends be...

Claims

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Application Information

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IPC IPC(8): B29C65/22
Inventor 靳德建陈泉华代业滨岳隆国
Owner SHANDONG BORUI TONG PLASTIC IND LTD
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