A dual-layer filtration and storage device for underground water recycling in tunnels

Abstract

This utility model belongs to the field of groundwater filtration technology, specifically relating to a double-layer filtration and storage device for underground groundwater recycling in tunnels. It includes a filter box, inside which a filter drive belt is movably mounted. The filter drive belt has multiple evenly distributed filter holes. A drive mechanism for driving the filter drive belt is installed inside the filter box. A gap is provided between one end of the filter drive belt and the filter box. A compression structure is assembled inside the filter box and below the gap. A filter plate is installed inside the filter box and at the bottom of the filter drive belt. The drive mechanism includes two drive shafts rotatably connected inside the filter box. This utility model not only performs double-layer filtration of groundwater, effectively removing various impurities from the water, but also compresses the intercepted impurities, squeezing out the water and filtering it again, thus avoiding water waste.

Description

Technical Field

[0001] This utility model belongs to the field of groundwater filtration technology, specifically relating to a dual-layer filtration and storage device for underground water recycling in tunnels. Background Technology

[0002] With the continuous advancement of infrastructure construction, tunnel engineering is playing an increasingly important role in the transportation sector. During tunnel construction and operation, groundwater treatment is a crucial aspect. On the one hand, if large amounts of groundwater are not effectively treated, they will not only threaten the stability of the tunnel structure but may also lead to the deterioration of the surrounding geological environment. On the other hand, directly discharging groundwater will result in a serious waste of water resources, especially given the current situation of increasingly scarce water resources, where this problem is becoming more and more prominent. Currently, there are various tunnel groundwater recycling devices on the market. Some devices use a simple filtration method, filtering groundwater through only a single layer of filter screen. This method is difficult to completely remove fine impurities and suspended solids from the water, resulting in poor water quality and failing to meet the high water quality requirements of scenarios such as construction water and fire-fighting water in tunnels. Some devices, although they have multi-stage filtration functions, have obvious defects in impurity treatment. When impurities accumulate during the filtration process, they cannot be further processed, and the water contained within the impurities is wasted, failing to fully realize the efficient recycling and utilization of water resources. It is evident that existing tunnel groundwater recycling devices are significantly inadequate in terms of filtration efficiency and full utilization of water resources. Utility Model Content

[0003] The purpose of this invention is to provide a double-layer filtration and storage device for underground water recycling in tunnels. This device can not only perform double-layer filtration on groundwater to effectively remove various impurities from the water, but also squeeze out the water from the intercepted impurities and filter them again, thus avoiding the waste of water resources.

[0004] The specific technical solution adopted by this utility model is as follows: A double-layer filtration and storage device for underground water recycling in tunnels includes a filter box, a filter drive belt is movably installed inside the filter box, a plurality of filter holes are evenly distributed on the filter drive belt, and a drive mechanism for driving the filter drive belt is installed inside the filter box. A gap is provided between one end of the filter conveyor belt and the filter housing. An extrusion structure is assembled inside the filter housing and below the gap. A filter plate is installed inside the filter housing and at the bottom of the filter conveyor belt.

[0005] The drive mechanism includes two drive shafts, which are rotatably connected to the filter housing. The filter drive belt is installed on the outside of the two drive shafts. A motor is installed on the filter housing, and the output end of the motor is connected to one of the drive shafts.

[0006] The horizontal height of the filter drive belt near the gap is higher than the horizontal height of the other end.

[0007] The filter box contains two blocking side plates and a blocking end plate. The blocking end plate is in contact with the end of the filter conveyor belt away from the gap, and the two blocking side plates are in contact with the two sides of the filter conveyor belt respectively.

[0008] The extrusion structure includes a slide bar fixed inside the filter box, a scraper blade fixed at one end of the slide bar, a mounting bracket mounted on the top of the slide bar, water outlet holes evenly arranged inside the mounting bracket and on the side near the filter box, a sliding frame slidably connected inside the scraper blade, and at least one electric push rod mounted on the scraper blade, with the stroke rod of the electric push rod connected to the sliding frame.

[0009] The scraping blade is in contact with the bottom of the filter conveyor belt.

[0010] The filter housing has a detachable mounting plate on its side wall, and the mounting bracket is slidably connected to the slide bar.

[0011] The inner wall of the filter box and both ends of the mounting bracket are fixed with guide protective plates.

[0012] The technical effects achieved by this utility model are as follows: This invention filters groundwater using a filter conveyor belt and filter plate. It not only performs double-layer filtration of groundwater, significantly improving filtration accuracy and effectively removing various impurities from the water, resulting in better quality recycled water, but also uses a sliding frame and mounting frame to squeeze out impurities. By squeezing out the water from the intercepted impurities, the water is filtered again, avoiding waste of water resources and greatly improving the recycling rate of water resources. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the filter box in this utility model; Figure 3 This is a schematic diagram of the structure between the filter transmission belt, filter plate and blocking end plate in this utility model; Figure 4 This is a schematic diagram of the structure between the filter transmission belt, the sliding frame, and the mounting frame in this utility model; Figure 5 This is a schematic diagram of the structure between the mounting bracket, the scraping blade, and the guide guard plate in this utility model.

[0014] The attached diagram lists the components represented by each number as follows: 1. Filter housing; 2. Filter drive belt; 3. Filter holes; 4. Drive shaft; 5. Motor; 6. Filter plate; 7. Blocking side plate; 8. Blocking end plate; 9. Scraper; 10. Sliding strip; 11. Mounting bracket; 12. Sliding bracket; 13. Electric push rod; 14. Water outlet; 15. Guide guard plate; 16. Opening and closing plate. Detailed Implementation

[0015] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0016] like Figures 1-5 As shown, a dual-layer filtration and storage device for tunnel groundwater recycling includes a filter box 1. An inlet pipe and an outlet pipe are fixed to the top and bottom of the filter box 1, respectively. Both the inlet and outlet pipes can be equipped with solenoid valves to control the feeding or discharging time and flow rate. When recycling tunnel groundwater, it enters the filter box 1 through the inlet pipe. After the filter box 1 completes filtration, the groundwater is discharged through the outlet pipe. A storage device, such as a storage bin or tank, can be installed below the outlet pipe. Other subsequent filtration structures can be connected to the lower part of the outlet pipe to further filter the groundwater before it is discharged into the storage device. The specific filtration structure inside the filter box 1 is as follows: The filter housing 1 is internally equipped with a filter conveyor belt 2, on which multiple filter holes 3 are evenly distributed. Water flows through the feed pipe onto the filter conveyor belt 2 and is filtered through the filter holes 3. (See attached...) Figure 2 The filter housing 1 is equipped with a drive mechanism for driving the filter conveyor belt 2. This drive mechanism drives the filter conveyor belt 2 and filters impurities in the groundwater onto the filter conveyor belt 2. The horizontal height of the filter conveyor belt 2 near the gap is higher than that of the other end. This can be achieved by the installation position of one drive shaft 4 being higher than that of the other drive shaft 4. This prevents impurities and water from falling too much and rolling directly into the gap mentioned below. Instead, the filter conveyor belt 2 transports the impurities. A gap is provided between one end of the filter conveyor belt 2 and the filter housing 1, so that the impurities are transported towards the direction of the gap. See attached document Figures 2-3Inside the filter housing 1, there are two blocking side plates 7 and a blocking end plate 8. The blocking end plate 8 contacts the end of the filter conveyor belt 2 away from the gap. The two blocking side plates 7 contact the two sides of the filter conveyor belt 2 respectively. By setting the two blocking side plates 7, the two sides of the filter conveyor belt 2 can be blocked. And by setting the blocking end plate 8, the lower inclined end of the filter conveyor belt 2 can be blocked to prevent groundwater from flowing out from there, thus ensuring the filtration effect. Inside the filter housing 1 and below the gap, there is a squeezing structure. By setting the squeezing structure, the moisture of the impurities can be squeezed out. Inside the filter housing 1 and at the bottom of the filter conveyor belt 2, there is a filter plate 6. Secondary filtration is performed through the filter plate 6. After completion, it is discharged from the discharge pipe. See attached document Figure 3 The drive mechanism includes two drive shafts 4, which are rotatably connected inside the filter housing 1. The filter drive belt 2 is installed on the outside of the two drive shafts 4. A motor 5 is installed on the filter housing 1. The output end of the motor 5 is connected to one of the drive shafts 4. A protective cover is installed on the outside of the motor 5 to protect it.

[0017] When driving the filter transmission belt 2, the motor 5 can be driven so that the output end of the motor 5 drives one of the transmission shafts 4 to rotate and drive the filter transmission belt 2 to transmit power. The other transmission shaft 4 can support the filter transmission belt 2. Furthermore, in order to improve the transmission effect, a transmission wheel can be set on the outside of the transmission shaft 4, and a transmission belt is set between the transmission wheels on the two transmission shafts 4. The filter transmission belt 2 is mounted on the transmission belt to achieve a better transmission effect. Moreover, the transmission belt is relatively narrow, so it will not affect the normal operation of the filtered water.

[0018] See attached document Figures 4-5 The extrusion structure includes a slide bar 10 fixed inside the filter box 1. A scraper 9 is fixed at one end of the slide bar 10. A mounting frame 11 is mounted on the top of the slide bar 10. Furthermore, the scraper 9 is in contact with the bottom of the filter conveyor belt 2. By setting the scraper 9, the scraper 9 can scrape off the impurities remaining on the filter conveyor belt 2 until they fall into the mounting frame 11. Water outlet holes 14 are evenly arranged inside the mounting frame 11 and on the side close to the filter box 1. A sliding frame 12 is slidably connected inside the scraper 9. At least one electric push rod 13 is installed on the scraper 9, and the stroke rod of the electric push rod 13 is connected to the sliding frame 12. When impurities fall onto the mounting frame 11 through the gap, the electric push rod 13 can be driven, causing the sliding frame 12 to squeeze the impurities. This forces the water in the impurities to fall through the water outlet 14. The sliding frame 12 is L-shaped, so that when it squeezes the impurities, the horizontal plate above it catches them. When the sliding frame 12 retracts via the electric push rod 13, the scraper 9 can scrape the impurities into the mounting frame 11. Driving the electric push rod 13 again will squeeze the impurities again. The outer side of the electric push rod 13 can be equipped with a protective cover to prevent contact with water. The filter housing 1 has guide plates 15 fixed to both ends of the inner wall of the filter housing 1 and the mounting frame 11. The guide plates 15 can guide the impurities falling from both sides into the mounting frame 11. The side wall of the filter housing 1 has a detachable mounting opening and closing plate 16. The mounting frame 11 is slidably connected to the slide bar 10. With this setting, when the mounting frame 11 needs to be cleaned or replaced, the opening and closing plate 16 can be removed, and the mounting frame 11 can be slid on the slide bar 10 to remove the mounting frame 11. After cleaning or replacement, the mounting frame 11 can be reinstalled.

[0019] The working principle of this utility model is as follows: Water falls from the feed pipe onto the filter conveyor belt 2, is filtered through the filter holes 3, and is filtered again through the filter plate 6. The filter conveyor belt 2 transports impurities until they are transported into the mounting frame 11. The electric push rod 13 is driven, causing the stroke rod of the electric push rod 13 to drive the sliding frame 12 to squeeze the impurities, causing the water in the impurities to be squeezed out and fall onto the filter plate 6 through the water outlet hole 14. The water that has passed through the filter plate 6 is discharged through the discharge pipe and can be transported to the storage device through subsequent filtration mechanisms.

[0020] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A double-layer filtration and storage device for underground water recycling in tunnels, comprising a filter box (1), characterized in that: The filter housing (1) is equipped with a filter transmission belt (2) which is movably arranged inside. The filter transmission belt (2) has multiple filter holes (3) evenly distributed on it. The filter housing (1) is equipped with a drive mechanism for driving the filter transmission belt (2). A gap is provided between one end of the filter transmission belt (2) and the filter box (1). An extrusion structure is installed inside the filter box (1) and below the gap. A filter plate (6) is installed inside the filter box (1) and at the bottom of the filter transmission belt (2).

2. The tunnel groundwater recycling and dual-layer filtration and storage device according to claim 1, characterized in that: The drive mechanism includes two drive shafts (4), and the two drive shafts (4) are rotatably connected inside the filter housing (1). The filter drive belt (2) is installed on the outside of the two drive shafts (4). A motor (5) is installed on the filter housing (1), and the output end of the motor (5) is connected to one of the drive shafts (4).

3. The tunnel groundwater recycling and dual-layer filtration and storage device according to claim 2, characterized in that: The horizontal height of the filter drive belt (2) near the gap is higher than the horizontal height of the other end.

4. A tunnel groundwater recycling and dual-layer filtration and storage device according to claim 3, characterized in that: The filter housing (1) has two blocking side plates (7) and a blocking end plate (8) fixed inside. The blocking end plate (8) is in contact with the end of the filter transmission belt (2) away from the gap, and the two blocking side plates (7) are in contact with the two sides of the filter transmission belt (2) respectively.

5. A tunnel groundwater recycling and storage device with dual-layer filtration as described in claim 1, characterized in that: The extrusion structure includes a slide bar (10) fixed inside the filter box (1), a scraper (9) fixed at one end of the slide bar (10), a mounting bracket (11) mounted on the top of the slide bar (10), water outlet holes (14) are evenly arranged inside the mounting bracket (11) and on the side close to the filter box (1), a sliding frame (12) is slidably connected inside the scraper (9), at least one electric push rod (13) is mounted on the scraper (9), and the stroke rod of the electric push rod (13) is connected to the sliding frame (12).

6. A tunnel groundwater recycling and dual-layer filtration and storage device according to claim 5, characterized in that: The scraper (9) is in contact with the bottom of the filter conveyor belt (2).

7. A tunnel groundwater recycling and storage device with dual-layer filtration as described in claim 5, characterized in that: The filter housing (1) has a detachable mounting plate (16) on its side wall, and the mounting bracket (11) is slidably connected to the slide bar (10).

8. A tunnel groundwater recycling and dual-layer filtration and storage device according to claim 5, characterized in that: Guide guard plates (15) are fixed to the inner wall of the filter box (1) and at both ends of the mounting bracket (11).

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