TBM long-distance large-gradient intelligent deslagging cross-country belt

Abstract

The invention relates to the field of TBM rock tunnel construction equipment, in particular to a TBM long-distance large-gradient intelligent deslagging off-road belt. Comprising multiple sets of belt conveyors and multiple stages of transshipment devices, the belt conveyors and the transshipment devices are matched with each other, and the belt conveyors are connected through the transshipment devices; the transshipment device is arranged at a position with a large continuous gradient; protection devices, intelligent detection devices and deicing devices which are matched with the belt conveyors are arranged on the belt conveyors; the problems that in the prior art, slag discharging equipment is large in gradient, small in turning radius and low in safety performance are effectively solved, and meanwhile the problem that transportation cost is high is solved. And the deslagging efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the field of TBM rock tunnel construction equipment, in particular to a TBM long-distance and large-slope intelligent slag-discharging cross-country belt. Background Art

[0002] With the continuous development of underground engineering construction technology and tunnel boring equipment, TBMs and shield machines are increasingly being used in tunnel construction, especially in the process of railway tunnel excavation, where a single-hole double-line form is adopted and both lines need to be excavated simultaneously.

[0003] In high-altitude areas, the slag dump is far away from the cross tunnel, the valleys on both sides are narrow, the terrain is complex, the slope along the road is large and most of it is downhill, the vertical drop between the tunnel entrance and the slag dump is large, the tunnel is located in the area with a long winter, the temperature difference between day and night is large, and the road surface is prone to ice. If the traditional slag discharge method is adopted, there will be problems such as low slag efficiency and safety performance, and high transportation cost; on the other hand, the slag discharge equipment in the existing technology has a simple structure, and there are problems such as large slag discharge slope and small turning radius during the slag discharge process; in addition, the slag discharge equipment in the existing technology often requires manual inspection and has low safety performance; therefore, there is an urgent need for a TBM long-distance and large-slope intelligent slag discharge off-road belt to solve the current problem. Summary of the invention

[0004] To solve the above problems, the present invention proposes a TBM long-distance and large-slope intelligent slag discharge off-road belt, which effectively solves the problems of large slope, small turning radius and low safety performance in the slag discharge equipment in the prior art, and also solves the problem of high transportation cost; and greatly improves the slag discharge efficiency.

[0005] To achieve the above-mentioned purpose, the present invention proposes the following technical solutions: a TBM long-distance and large-slope intelligent slag discharge off-road belt, including multiple groups of belt conveyors and multi-stage transfer rooms, the belt conveyors and transfer rooms cooperate with each other, and the belt conveyors are connected through transfer rooms; the transfer rooms are arranged at a position with a large continuous slope; the belt conveyors are provided with protective devices, intelligent detection devices and deicing devices that cooperate with them.

[0006] Furthermore: the protection device includes anti-blocking protection and anti-mine pressure protection.

[0007] Furthermore: the intelligent detection device includes speed monitoring, anti-deviation monitoring, material flow monitoring and slippage monitoring.

[0008] Furthermore: an alarm device coordinated with the detection device is arranged on the belt conveyor.

[0009] Furthermore: the deicing device includes a driving roller on the belt conveyor; the belt conveyor is provided with a heating fan matched with the driving roller.

[0010] Further: the transfer is arranged at a position with a smaller turning radius.

[0011] Furthermore: the conveyor belts on the belt conveyor are all steel wire core tear-resistant conveyor belts; the belt conveyor is provided with a primary cleaner, a secondary cleaner and a V-shaped cleaner matched with the conveyor belt; the V-shaped cleaner is installed at the tail of the belt conveyor.

[0012] Compared with the prior art, the gain effect of the present invention is: Compared with the existing slag transportation method, the present invention proposes a slag discharge method using a long-distance belt conveyor. By setting up multi-stage transfer, the problems such as the long distance between the tunnel entrance and the slag yard, the large slope along the way and the small turning radius are solved. By equipping with an intelligent monitoring system and various protection devices, the problems of high cost and low safety performance of manual inspection of traditional belt conveyors and easy freezing of construction belt conveyors under low temperature are solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the overall layout diagram of the present invention.

[0014] Figure 2 It is a partial side view of the present invention.

[0015] Figure 3 It is a partial structural diagram of the present invention.

[0016] Figure 4 It is a side view of the belt conveyor of the present invention.

[0017] Figure 5 It is a three-dimensional diagram of the belt conveyor of the present invention.

[0018] In the picture: 1. belt conveyor, 2. transfer. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] The off-road belt conveyor 1 described in the present invention is divided into multiple groups of belt conveyors 1. Each belt conveyor 1 is provided with a transfer 2, which has the function of reducing the slope. Some transfer 2 are arranged at a place with a smaller turning radius to solve the problem of small radius turning of the belt conveyor 1. The tunnel slag is transported by the belt conveyor 1 in the tunnel to the transfer 2 at the end. The transfer 2 is provided with a chute device to transport the tunnel slag to the next belt conveyor 1. After multiple transfers 2 and belt conveyors 1, the tunnel slag is finally transported to the slag yard.

[0021] The conveyor belt adopts a steel cord tear-resistant conveyor belt. The belt conveyor 1 is equipped with a cleaning device. The head unloading roller is equipped with a primary cleaner and a secondary cleaner made of polyurethane material. The primary cleaner loosens the materials on the conveyor belt, and the secondary cleaner cleans the residual materials after the primary cleaner cleans. V-shaped cleaners are installed on the front of the lower drive roller and the return rollers of all tail stations to prevent the leaked materials from entering between the conveyor belt and the roller shell. The conveyor belt tensioning roller is cleaned by a steel scraper cleaner.

[0022] The belt conveyors 1 at all levels described in the present invention are all provided with protection devices and intelligent detection devices, and the belt conveyors are provided with the following safety protection facilities to ensure the safe operation of the equipment: anti-blocking and anti-pressure protection at the head unloading place; speed monitoring devices are provided at the driving rollers and redirecting rollers of the belt conveyor to accurately control the belt speed and detect and protect the belt from slipping; anti-deviation rollers are used to prevent the belt from deviating, and an anti-belt deviation switch is provided (it can identify the specific position of the deviated belt along the line, and a two-stage deviation switch is used. Under normal circumstances, it will not trip, and it will trip only when it deviates to the limit position); the lower running belt conveyors are all provided with overspeed protection devices; the lower running belt conveyors are all provided with speed encoders; the lower running belt conveyors are all provided with controllable hydraulic disc brakes; the emergency stop rope switch safety protection along the line (it can identify the specific position of the emergency stop lock along the line , the line voltage loss of the emergency pull-wire switch is ≤15%, which can solve the problem of rapid attenuation of the control signal, and use the I / O station to control the switch system); the off-road belt conveyor 1 described in the present invention is equipped with a deicing device in consideration of the long winter period in the region where it is located, and a heating fan is arranged at the driving roller. After the equipment is shut down for a long time, hot air is blown to the rubber surface of the driving roller to bake it, so as to ensure that the rubber surface of the driving roller is dry, and to ensure that there is sufficient friction between the transmission roller and the belt to the maximum extent. The drive mode selects variable frequency drive. When the equipment is not transporting materials, the advantages of frequency conversion technology are fully utilized. Through frequency conversion technology, the equipment is kept running at a low speed, so that all rotating parts of the equipment run at a low speed and low power consumption, thereby avoiding the reduction of the viscosity of the lubricating oil of each rotating part after the equipment is shut down, the ice on the surface of the belt, etc., which causes the resistance to increase and the difficulty in starting the equipment.

Claims

1. A TBM long-distance and high-slope intelligent slag-discharging off-road belt, characterized by: The invention comprises a plurality of belt conveyors (1) and a multi-stage transfer device (2), wherein the belt conveyors (1) and the transfer device (2) cooperate with each other, and the belt conveyors (1) are connected through the transfer device (2); the transfer device (2) is arranged at a position with a large continuous slope; and the belt conveyors (1) are provided with protective devices, intelligent detection devices and deicing devices that cooperate with them.

2. The TBM long-distance and large-slope intelligent slag-discharging off-road belt according to claim 1 is characterized in that: The protection devices include anti-blockage protection and anti-mine pressure protection.

3. The TBM long-distance and large-slope intelligent slag-discharging off-road belt according to claim 1 is characterized in that: Intelligent detection devices include speed monitoring, anti-deviation monitoring, material flow monitoring and slip monitoring.

4. The TBM long-distance and large-slope intelligent slag-discharging off-road belt according to claim 1 is characterized in that: The belt conveyor (1) is provided with an alarm device which cooperates with the detection device.

5. The TBM long-distance and large-slope intelligent slag-discharging off-road belt according to claim 1 is characterized in that: The deicing device comprises a driving roller on a belt conveyor (1); a heating fan matched with the driving roller is arranged on the belt conveyor (1).

6. The TBM long-distance and large-slope intelligent slag-discharging off-road belt according to claim 1 is characterized by: Reprint (2) is set at a location with a small turning radius.

7. The TBM long-distance and large-slope intelligent slag-discharging off-road belt according to claim 1 is characterized by: The conveyor belts on the belt conveyor (1) are all steel wire core tear-resistant conveyor belts; the belt conveyor (1) is provided with a primary cleaner, a secondary cleaner and a V-shaped cleaner that match the conveyor belt; the V-shaped cleaner is installed at the rear of the belt conveyor (1).

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