Air inlet plugging device of underground conveying belt roadway

Abstract

The utility model discloses an air inlet plugging device of an underground conveying belt roadway, belongs to the technical field of underground ventilation facilities, and is used for plugging air inlet of the underground conveying belt roadway. According to the technical scheme, a steel retaining wall is located in a conveying belt roadway on one side of a main shaft and is made of channel steel and a steel plate, the channel steel surrounds the side wall and the top face of the roadway and is fixedly connected with the side wall and the top face of the roadway, the steel plate is welded to the channel steel, the roadway of the conveying belt roadway is closed through the steel plate, and a window and a doorway are formed in the steel plate; the movable window and the movable air door are connected with the window and the doorway respectively, the conveying belt is located in a roadway of the conveying belt roadway on the inner side of the steel retaining wall, and one end of the belt conveying windshield is connected with the steel retaining wall in a welded mode. The blocking retaining wall is simple in structure and good in blocking effect, normal use of the conveying belt roadway is not affected, targeted improvement can be conducted on the blocking retaining wall of the conveying belt roadway, ventilation disorder of the conveying belt roadway can be effectively improved, and the state that an existing blocking retaining wall is not tight in sealing is eliminated.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of devices for plugging the air intake of underground transport belt lane, belong to underground ventilation facility technical field. BACKGROUND

[0002] The main shaft skip conveyor belt of underground metal mine is the most important ore transport level, undertakes the heavy responsibility of underground ore transfer to main shaft skip, in order to ensure the normal operation of ventilation system, main shaft is not used as air intake shaft, often needs to set normally closed air door in belt way near horsehead, blocks isolation main shaft air intake. Because belt way needs to be operated frequently, cause part of air flow to enter belt way through the channel near belt in operation process, cause air leakage, seriously cause long-term disorder of ventilation system, not in line with ventilation related specification, affect normal production. Therefore, how to effectively solve the problem that long-term air leakage caused by the closure of the closure retaining wall of transport belt lane becomes particularly important. SUMMARY

[0003] The utility model solves the technical problem to provide a kind of air intake plugging device of underground transport belt lane, this plugging device can improve the condition that existing plugging retaining wall is not closed tightly, reduce air leakage, effectively solve the ventilation problem of belt way.

[0004] The technical scheme for solving the above technical problem is:

[0005] A kind of air intake plugging device of underground transport belt lane, it includes steel retaining wall, movable window, movable air door, steel retaining wall is located in the transport belt lane of main shaft side, steel retaining wall is made of channel steel and steel plate, channel steel surrounds the side wall and top surface of roadway, channel steel is fixedly connected with the side wall and top surface of roadway, steel plate is welded with channel steel, steel plate closes the roadway of transport belt lane, window and door are opened on steel plate, movable window and movable air door are connected with window and door respectively, transport belt is located in the roadway of the transport belt lane in the inboard side of steel retaining wall, and one end of belt transport wind shield is welded with steel retaining wall.

[0006] The air intake plugging device of above-mentioned underground transport belt lane, movable window is located in the middle position of steel retaining wall, movable window is connected with the window of steel retaining wall by inserting plate, movable air door is welded into plate frame structure by channel steel and steel plate, one side of movable air door is connected with the door of steel retaining wall by hinge, and the opening direction of movable air door is against the wind opening.

[0007] The air intake plugging device of above-mentioned underground transport belt lane, it also has plugging rubber strip, plugging rubber strip is fixed in the inboard side of belt transport wind shield by steel nail, and plugging rubber strip is perpendicular to transport belt.

[0008] The utility model has the advantages that:

[0009] The utility model discloses can carry out pertinence improvement to the main shaft transport belt lane plugging retaining wall, can effectively improve the transport belt lane ventilation disorder, is favorable to the improvement of the present plugging retaining wall closed not strict condition, reduces the air flow and leaks, effectively solved the ventilation problem of the main shaft transport belt lane. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is the installation position schematic drawing of the utility model;

[0011] Figure 2 It is the structure schematic drawing of the utility model.

[0012] Marked as follows in the drawing: main shaft 1, transport belt lane 2, transport belt 3, belt transport wind shield 4, steel retaining wall 5, movable window 6, movable air door 7, plugging rubber strip 8, steel nail 9. DETAILED DESCRIPTION

[0013] The utility model discloses a steel retaining wall 5, movable window 6, movable air door 7, plugging rubber strip 8, steel nail 9 composition.

[0014] Figure 1 Show, steel retaining wall 5 is located in the transport belt lane 2 of main shaft 1 side, and transport belt 3 is located in the transport belt lane 2 of the inside of steel retaining wall 5, and belt transport wind shield 4 is covered in transport belt 3 outside, and one end of belt transport wind shield 4 is connected with steel retaining wall 5 by welding.Plugging rubber strip 8 is fixed in the inside of belt transport wind shield 4 by steel nail 9, and plugging rubber strip 8 is perpendicular to transport belt 3.

[0015] Figure 2 Show, steel retaining wall 5 is made of channel steel and steel plate, and the channel steel surrounds the roadway side wall and top surface of transport belt lane 2, and the channel steel is fixedly connected with the side wall and top surface of the roadway by round steel bar, and the round steel bar is punched into the side wall and top surface of the roadway, and the channel steel is welded with the round steel bar to fix the channel steel on the side wall and top surface of the roadway, and the steel plate is welded with the channel steel, and the steel plate seals the roadway of transport belt lane 2.The round steel bar is 30# round steel, and the depth of the round steel bar is not more than 350mm, and the outer leakage length is 250mm.

[0016] Figure 2 Show, the steel plate of steel retaining wall 5 is provided with a window and a door, and movable window 6 and movable air door 7 are connected with the window and the door respectively.Movable window 6 is located at the middle position of steel retaining wall 5, and movable window 6 is connected with the window of steel retaining wall 5 by plugboard.Movable air door 7 is welded into a plate frame structure by channel steel and steel plate, and one side of movable air door 7 is connected with the door of steel retaining wall 5 by hinge, and the opening direction of movable air door 7 is against the wind.

[0017] The steel retaining wall 5 can effectively seal the connecting section of the transport belt lane 2 and the main shaft 1, can avoid overall air flow disorder, can effectively improve the ventilation environment of the belt lane, and can improve the effectiveness of ventilation; the movable air door 7 and the movable window 6 are the only passageway of the steel retaining wall 5, under the premise of not affecting the normal use of the transport belt lane 2, can enter the inner side of the steel retaining wall 5, can be used as a passageway for later maintenance of the transport belt lane 2, and can reduce the later maintenance cost; the sealing rubber strip 8 is an important structure inside the belt transport wind shield 4, bears the air flow generated in the running process of the transport belt lane 2, is favorable for improving the state that the existing sealing retaining wall is not tightly closed, reduces air flow running and air leakage, can effectively improve the sealing rate of the sealing retaining wall, and guarantees the normal use of the steel retaining wall 5 of the running belt lane 2.

[0018] The implementation process of the utility model is as follows:

[0019] The -448m level of a mine in Hebei is a main shaft skip conveyor belt ore loading level, is influenced by the change of air pressure environment for a long time, the main shaft is often an air inlet shaft, the main shaft is communicated with the -448m level and the -488m level underground. A normally closed air door is arranged at the -488m level, no air door is arranged at the -448m level, the air flow entering the main shaft well passes through the -448m level and enters the pedestrian well and even the elevator shaft, influences the stability of the underground air flow, and does not conform to the safety specification standard. In order to guarantee the stability of the underground air flow, the steel retaining wall 5 needs to be installed near the -448m level horsehead, effectively blocks the air entering the transport belt lane, and guarantees the stability of the underground air supply.

[0020] One embodiment of the utility model is as follows:

[0021] The channel steel specification of the steel retaining wall 5 is 20#, the steel plate thickness is 6mm, the fixed round steel stick specification adopts 30#, the depth is not more than 350mm, and the outer leakage length is 250mm;

[0022] The width of the movable window 6 is 300mm, and the height is 400mm;

[0023] The width of the movable air door 7 is 1000mm, and the height is 2000mm;

[0024] The length of the sealing rubber strip 8 is 50cm, the width is 10cm, the thickness is 5cm, the interval is not more than 2mm, the arrangement row spacing is not more than 0.5m;

[0025] The diameter of the steel nail 9 is 5mm, and the length is 10cm.

Claims

1. An air inlet plugging device for an underground haulage belt entry, characterized in that: It includes steel retaining wall (5), movable window (6), movable air door (7), steel retaining wall (5) is located in the transport belt lane (2) of the main shaft (1) one side, steel retaining wall (5) is made of channel steel and steel plate, channel steel surrounds the side wall and top surface of the roadway, channel steel is fixedly connected with the side wall and top surface of the roadway, the steel plate is welded with the channel steel, the steel plate seals the roadway of the transport belt lane (2), the steel plate is provided with window and door opening, movable window (6) and movable air door (7) are connected with the window and door opening respectively, the transport belt is located in the roadway of the transport belt lane (2) on the inner side of the steel retaining wall (5), one end of the belt transport wind shield (4) is welded with the steel retaining wall (5).

2. An air inlet blanking device for a downhole haulage belt entry according to claim 1, characterised in that: The movable window (6) is located at the middle position of the steel retaining wall (5), the movable window (6) is connected with the window of the steel retaining wall (5) through the plugboard, the movable air door (7) is welded with the channel steel and the steel plate into the plate frame structure, one side of the movable air door (7) is connected with the door opening of the steel retaining wall (5) through the hinge, and the opening direction of the movable air door (7) is against the wind.

3. An air inlet blanking device for a downhole haulage belt entry according to claim 1, characterized in that: It also has a sealing rubber strip (8), the sealing rubber strip (8) is fixed in the inner side of the belt transport wind shield (4) through the steel nail (9), and the sealing rubber strip (8) is perpendicular to the transport belt (3).

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