TBM belt conveyor slag-water separation device

Abstract

The utility model discloses a slag-water separation device of a TBM (Tunnel Boring Machine) belt conveyor, which is arranged at a slag transfer position of the TBM and comprises a belt conveyor, a slope-shaped guide plate, a gradient adjusting device and a water collecting tank, the slope-shaped guide plate is located at a material receiving point at the front end of the belt conveyor, and a soft belt of the belt conveyor is located on the upper surface of the slope-shaped guide plate. A gradient adjusting device for adjusting the gradient of the slope-shaped guide plate is arranged at the bottom of the slope-shaped guide plate; a water collecting tank is arranged below the front end of the belt conveyor. According to the TBM belt conveyor slag-water separation device, slag-water separation is achieved on the basis of the principle that a belt conveyor can carry slag soil to move upwards along a slope section but cannot carry sewage to move upwards along the slope section.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel excavation, and in particular relates to a slag-water separation device for a TBM belt conveyor. Background Art

[0002] With the continuous increase of tunnel projects at home and abroad, TBM tunnel boring machines have been more and more widely used as a construction tool for hard rock tunnels. The cutter head of the TBM tunnel boring machine cuts the surrounding rock in front of the tunnel and transports the slag to the outside of the tunnel through the main machine belt conveyor, the rear supporting belt conveyor, the continuous belt conveyor or the mine car slag relay. The conventional TBM belt conveyor slag discharge system is suitable for the transportation of dry or low-water slag materials. At this time, the belt conveyor slag discharge system has high transportation efficiency and environmental protection performance. However, when the TBM belt conveyor is used to transport slag-water mixture, the friction between the slag and the belt will be reduced due to the friction-reducing effect of water, which will lead to a decrease in the slag transportation capacity of the belt conveyor. In addition, a large amount of sewage is transported forward with the belt, and sewage will inevitably be spilled or overflowed during the transportation process, which will cause great pollution to the TBM equipment and the tunnel construction environment, and at the same time cause safety hazards to tunnel workers.

[0003] At present, manual cleaning is commonly used in TBM tunnel construction to deal with sludge and sewage spilled during belt transportation; this method has high labor costs and low efficiency. Utility Model Content

[0004] The utility model aims to provide a slag-water separation device for a TBM belt conveyor, aiming to solve the above-mentioned problem.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is to design a TBM belt conveyor slag-water separation device, which is installed at the slag transfer position of the TBM tunnel boring machine. The TBM belt conveyor slag-water separation device includes a belt conveyor, a sloped guide plate, a slope adjustment device and a water collecting trough; the sloped guide plate is located at the material receiving point at the front end of the belt conveyor, and the soft belt of the belt conveyor is located on the upper surface of the sloped guide plate; a slope adjustment device for adjusting the slope of the sloped guide plate is provided at the bottom of the sloped guide plate; a water collecting trough is provided at the lower part of the front end of the belt conveyor.

[0006] The sloped guide plate can support the soft belt and divert the sewage falling on the soft belt to the water collection tank. The inclination of the sloped guide plate can be adjusted to increase the diversion speed of the sewage and improve the separation effect of slag and water. The water collection tank is used to collect the diverted sewage.

[0007] Furthermore, a sewage discharge pipe outlet is provided on the water collection tank, and the sewage discharge pipe outlet is connected to a sewage pump.

[0008] Furthermore, a slide rail is provided at the lower part of the belt conveyor, and the water collecting tank slides along the slide rail, so that the water collecting tank can be axially slid to the external space for disassembly, so that the sludge settled in the water collecting tank can be manually cleaned when necessary.

[0009] Furthermore, the slope adjustment device is composed of a base and a telescopic rod. The front end of the sloped guide plate is hinged to the front end of the base, and the rear end of the sloped guide plate and the rear end of the base are respectively hinged to the two ends of the telescopic rod. The slope of the sloped guide plate is adjusted by extending and retracting the telescopic rod.

[0010] Furthermore, a plurality of slag transfer positions are arranged in the TBM tunnel boring machine; each slag transfer position is provided with the TBM belt conveyor slag-water separation device.

[0011] The principle of separation of slag and water in this device is mainly based on the different friction between water, soil and belt. The belt conveyor can carry slag and soil upward along the slope section, but cannot carry sewage upward along the slope section.

[0012] The advantages and beneficial effects of the utility model are:

[0013] 1) It can separate the water in the TBM discharged soil to a certain extent, increase the friction between the soil and the belt, and improve the soil transportation efficiency of the TBM belt conveyor system.

[0014] 2) The sewage separated from the slag can be collected in a sump and then pumped out by a sewage pump, thereby avoiding the pollution of TBM equipment caused by sewage spillage and facilitating a clean tunnel working environment.

[0015] 3) Corresponding slag-water separation devices are installed at each relay slag transfer position of the TBM belt conveyor system, which can realize multi-stage separation of slag and water, and further improve the transportation efficiency of the TBM belt conveyor slag discharge system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is the installation diagram of the utility model.

[0018] Figure 3 Schematic diagram of the moving state of the water collection tank.

[0019] Among them, the cutter disc A, the cutter disc collecting hopper B, the TBM belt conveyor slag-water separation device C, the arrow D, the main machine belt conveyor E, the belt conveyor 1, the sloped guide plate 2, the slope adjustment device 3, the water collecting trough 4, the sewage pipe outlet 5, the slide rail 6, and the sewage pump 7. DETAILED DESCRIPTION

[0020] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention. Example

[0021] like Figure 1 , Figure 2 As shown, a TBM belt conveyor slag-water separation device C is installed at the rear end of the cutterhead A of the TBM tunnel boring machine and is located at the slag transfer position between the cutterhead collecting hopper B and the main machine belt conveyor E; the TBM belt conveyor slag-water separation device C consists of a belt conveyor 1, a slope-shaped guide plate 2, a slope adjustment device 3, a water collecting trough 4, a sewage pipe outlet 5, a slide rail 6, and a sewage pump 7.

[0022] A sloped guide plate 2 is provided at the material receiving point at the front end of the belt conveyor 1, and the soft belt of the belt conveyor 1 is located on the upper surface of the sloped guide plate 2. A slope adjustment device 3 for adjusting the slope of the sloped guide plate 2 is provided at the bottom of the sloped guide plate 2.

[0023] The slope adjustment device 3 consists of a base and a telescopic rod. The front end of the sloped guide plate 2 is hinged to the front end of the base, and the rear ends of the sloped guide plate 2 and the rear end of the base are respectively hinged to the two ends of the telescopic rod. The slope of the sloped guide plate 2 is adjusted by the extension and retraction of the telescopic rod.

[0024] A water collecting tank 4 is arranged at the lower part of the front end of the belt conveyor 1 ; a sewage discharge pipe outlet 5 is arranged on the water collecting tank 4 , and a sewage discharge pump 7 is connected to the sewage discharge pipe outlet 5 .

[0025] like Figure 3 As shown, a slide rail 6 (similar in structure to a drawer) is provided at the lower part of the belt conveyor 1, and the water collecting trough 4 is suspended on the slide rail 6, and the water collecting trough 4 can be moved along the direction of arrow D in the figure.

[0026] Working process: With the continuous excavation of the TBM tunnel boring machine, the slag water flows from the slag transfer position to the soft belt surface of the belt conveyor 1 supported by the sloped guide plate 2. Since the soft belt forms a slope under the action of the sloped guide plate 2, the water in the slag water flows along the soft belt surface to the water collection tank 4; and the slag soil in the slag water is transported to the rear of the TBM tunnel boring machine by the soft belt, thereby achieving the separation of water and soil in the slag water. The sewage entering the water collection tank 4 can be discharged from the sewage outlet 5, and the sewage pump 7 plays the role of pumping water.

[0027] The water collecting tank 4 can be drawn out along the slide rail 6 , so that workers can clean the sludge deposited in the water collecting tank 4 when necessary.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A TBM belt conveyor slag water separation device, installed at the slag transfer position of the TBM tunnel boring machine, Features: The TBM belt conveyor slag-water separation device includes a belt conveyor, a sloped guide plate, a slope adjustment device and a water collecting trough; the sloped guide plate is located at the material receiving point at the front end of the belt conveyor, and the soft belt of the belt conveyor is located on the upper surface of the sloped guide plate; a slope adjustment device for adjusting the slope of the sloped guide plate is provided at the bottom of the sloped guide plate; a water collecting trough is provided at the lower part of the front end of the belt conveyor.

2. A TBM belt conveyor slag-water separation device according to claim 1, Features: The water collecting tank is provided with a sewage discharge pipe outlet, and the sewage discharge pipe outlet is connected with a sewage discharge pump.

3. A TBM belt conveyor slag-water separation device according to claim 1, Features: A slide rail is arranged at the lower part of the belt conveyor, and the water collecting trough slides along the slide rail.

4. A TBM belt conveyor slag-water separation device according to claim 1, Features: The slope adjustment device consists of a base and a telescopic rod. The front end of the sloped guide plate is hinged to the front end of the base, and the rear ends of the sloped guide plate and the rear end of the base are respectively hinged to the two ends of the telescopic rod. The slope of the sloped guide plate is adjusted by extending and retracting the telescopic rod.

5. The TBM belt conveyor slag-water separation device according to claim 1, Features: A plurality of slag transfer positions are arranged in the TBM tunnel boring machine; each slag transfer position is provided with the TBM belt conveyor slag-water separation device.

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