Sewage totally-closed collection and recycling device in river channel plate dismantling process

Abstract

The utility model discloses a totally-enclosed sewage collecting and recycling device in a riverway plate dismantling process, which comprises a water storage tank (6), a sedimentation tank (5) and a control box, the water storage tank (6) is arranged on a disc buckle type full framing of a riverway plate dismantling structure and below the lowest position of PE (Poly Ethylene) waterproof cloth above a wood template, and a floating ball sensor (7) is arranged at the upper part of the water storage tank (6). A submersible sewage pump (8) is arranged at the bottom; the submersible sewage pump (8) is connected with the sedimentation tank (5) through a PVC (polyvinyl chloride) pipeline (9); the sedimentation tank (5) comprises a cuboid tank body formed by a supporting frame and waterproof cloth (3), wherein the supporting frame is formed by a plurality of vertical rods (1) and horizontal rods (2). The industrial problems that the sewage collection rate is low and water pollution is easily caused in the river channel plate dismantling construction are solved, the sewage collection rate reaches 100%, the water saving efficiency is improved by 40%, and the device has remarkable environmental protection benefits and is worthy of wide popularization and application.

Description

Technical Field

[0001] This utility model belongs to the field of building wastewater treatment, specifically relating to a fully enclosed wastewater collection and reuse device during the demolition of riverbed slabs. Background Technology

[0002] In our company's flood control and disaster reduction project along the Guancheng River and Bo'ai Road in Nanming District, Guiyang City, the Guancheng River flows directly into the Nanming River, Guiyang's mother river. Therefore, addressing the wastewater discharge problem generated during the demolition process is particularly crucial. The inventors have innovatively solved the industry-wide problem of low wastewater collection rates and easy water pollution during riverbed slab demolition by integrating a "full-span scaffolding support system," a "flexible water collection system," and "intelligent pumping technology." Utility Model Content

[0003] The purpose of this utility model is to provide a fully enclosed sewage collection and recycling device during the demolition of river slabs, which solves the industry problem of low sewage collection rate and easy water pollution during the demolition of river slabs. The sewage collection rate reaches 100%, the water saving efficiency is improved by 40%, and it has significant environmental benefits and is worthy of widespread promotion and application.

[0004] The technical solution of this utility model:

[0005] A fully enclosed sewage collection and reuse device for the demolition of riverbed slabs includes a water storage tank, a sedimentation tank, and a control box. The water storage tank is installed on the disc-lock type full-span scaffold of the riverbed slab demolition structure, below the lowest point of the PE waterproof cloth above the wooden formwork. A float sensor is installed at the top of the water storage tank, and a submersible sewage pump is installed at the bottom. The submersible sewage pump is connected to the sedimentation tank through a PVC pipeline. The sedimentation tank includes a rectangular tank body composed of a support frame erected by multiple vertical and horizontal poles and a waterproof cloth.

[0006] Furthermore, the float sensor is fixed to the side wall of the water storage tank 6 by a stainless steel bracket, with the low liquid level contact elevation at 0.2m and the high liquid level contact elevation at 0.6m. The float sensor model is Q21F-40P.

[0007] Furthermore, the waterproof cloth is installed on the uppermost horizontal bar of the support frame via hooks.

[0008] Furthermore, the sedimentation tank is designed with a trapezoidal cross-section, with a bottom width of 2m, a top width of 3m, and a depth of 1.5m, forming a bottom slope of 1%.

[0009] Furthermore, the bottom of the sedimentation tank is laid with an HDPE geomembrane: 2mm thick, with a permeability coefficient ≤1×10⁻⁶. - ¹²cm / s, the joint is made by hot-melt welding, and the overlap width is ≥10cm.

[0010] Furthermore, the submersible sewage pump has the following specifications: 40WQ7-15-1.1, flow rate: 7m³ / h, head: 15m, and outlet diameter: 40mm.

[0011] Furthermore, the control box houses a PLC controller and a power supply system. The PLC controller integrates an RS485 communication interface and supports manual / automatic switching. The power supply system is equipped with an independent residual current circuit breaker (RCCB) C32A and a UPS (Uninterruptible Power Supply) with a runtime of ≥2 hours. The PLC controller model is YTRC-08.

[0012] Furthermore, the aforementioned fully enclosed sewage collection and reuse device during the removal of riverbed slabs also includes a sludge tank, which comprises a square tank consisting of four vertical poles, eight horizontal poles, and a waterproof tarpaulin.

[0013] This utility model has the following features:

[0014] 1. Fully enclosed collection system: The system adopts a disc-lock full-span frame + double-layer PE waterproof cloth to form a three-dimensional water collection cavity, achieving zero leakage of sewage.

[0015] 2. Intelligent water level control: The system integrates a liquid level sensor with a 220V submersible sewage pump to achieve automatic start-stop pumping.

[0016] 3. Modular construction: The support frame uses standardized components, which can be quickly disassembled and reused.

[0017] 4. Recycling system: A three-stage sedimentation tank is set up, and the sedimented material is used for processes such as wire saw cooling and site dust suppression.

[0018] 5. Eco-friendly: Zero wastewater discharge is achieved throughout the construction process, protecting the aquatic ecological environment.

[0019] 6. Scope of application: (1) Removal of concrete cover plates in urban river management projects; (2) Water-related municipal projects where the groundwater level is more than 1m above the working surface; (3) Gentle slope river sections with a water depth of ≤1.5m. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the sludge tank of this utility model;

[0022] Figure 3 This is a reference diagram of the usage state of this utility model (sedimentation tank omitted).

[0023] Marked in the image:

[0024] 1. Upright pole, 2. Horizontal pole, 3. Waterproof cloth, 4. Hook, 5. Sedimentation tank, 6. Water storage tank, 7. Float sensor, 8. Submersible sewage pump, 9. PVC pipeline, 10. Sludge tank. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Example 1: See Figure 1 , Figure 3 A fully enclosed sewage collection and reuse device for the demolition of riverbed slabs includes a water storage tank 6, a sedimentation tank 5, and a control box. The water storage tank 6 is installed on the disc-lock type full-span scaffold of the riverbed slab demolition structure, below the lowest point of the PE waterproof cloth above the wooden template. A float sensor 7 is installed on the upper part of the water storage tank 6, and a submersible sewage pump 8 is installed at the bottom. The submersible sewage pump 8 is connected to the sedimentation tank 5 through a PVC pipeline 9. The sedimentation tank 5 includes a rectangular tank body composed of a support frame erected by multiple uprights 1 and horizontal bars 2 and a waterproof cloth 3.

[0027] The float sensor 7 is fixed to the side wall of the water storage tank 6 by a stainless steel bracket. The low liquid level contact elevation is 0.2m, and the high liquid level contact elevation is 0.6m. The model of the float sensor 7 is Q21F-40P.

[0028] The waterproof cloth 3 is installed on the horizontal bar 2 at the top of the support frame via hooks 4.

[0029] The sedimentation tank 5 is designed with a trapezoidal cross-section, with a bottom width of 2m, a top width of 3m, and a depth of 1.5m, forming a bottom slope of 1%.

[0030] The bottom of sedimentation tank 5 is covered with a 2mm thick HDPE geomembrane with a permeability coefficient ≤1×10⁻⁶. - ¹²cm / s, the joint is made by hot-melt welding, and the overlap width is ≥10cm.

[0031] The submersible sewage pump 8 has the following specifications: 40WQ7-15-1.1, flow rate: 7m³ / h, head: 15m, and outlet diameter: 40mm.

[0032] The control box houses a PLC controller and a power supply system. The PLC controller integrates an RS485 communication interface and supports manual / automatic switching. The power supply system is equipped with an independent C32A residual current circuit breaker and a UPS uninterruptible power supply with a runtime of ≥2 hours. The PLC controller model is YTRC-08.

[0033] Example 2: See Figure 1-3A fully enclosed sewage collection and reuse device for the demolition of riverbed slabs includes a water storage tank 6 and a sedimentation tank 5. The water storage tank 6 is installed on the disc-lock type full-span scaffold of the riverbed slab demolition structure, below the lowest point of the PE waterproof cloth above the wooden template. A float sensor 7 is installed on the upper part of the water storage tank 6, and a submersible sewage pump 8 is installed at the bottom. The submersible sewage pump 8 is connected to the sedimentation tank 5 through a PVC pipeline 9. The sedimentation tank 5 includes a rectangular tank body composed of a support frame erected by multiple uprights 1 and horizontal bars 2 and a waterproof cloth 3. The waterproof cloth 3 is installed on the horizontal bar 2 at the top of the support frame through hooks 4. It also includes a sludge tank 10, which includes a square tank body composed of four uprights 1, eight horizontal bars 2 and a waterproof cloth 3.

[0034] Wastewater is pumped from storage tank 6 into sedimentation tank 5 using submersible sewage pump 8:

[0035] 1) Gravity settlement

[0036] Wastewater is allowed to settle in the pool for ≥4 hours. The pool is designed with a trapezoidal cross-section (bottom width 2m, top width 3m, depth 1.5m) to promote sludge collection by utilizing the slope difference (bottom slope 1%).

[0037] After sedimentation, the upper layer of clear water has SS (suspended solids) ≤200mg / L, and the lower layer of sludge is periodically pumped out by a vacuum truck (tank capacity 8m³) to a designated treatment point.

[0038] 2) Sludge treatment

[0039] The sludge is dewatered by a plate and frame filter press (moisture content ≤60%), and the sludge cake is transported to the construction waste recycling center.

[0040] The principle of this utility model:

[0041] 1. Mechanical transfer mechanism: The construction load is evenly transferred to the concrete bottom slab of the riverbed through the disc-lock frame.

[0042] 2. Fluid guiding principle: The 2‰ slope design allows sewage to be collected along the waterproof cloth into the collection pit.

[0043] 3. Automatic control technology: The 40WQ7151.1 submersible sewage pump (Q=7m³ / h, H=15m) is used in conjunction with a float sensor to achieve intelligent pumping.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments without departing from the technical essence of the present invention shall still fall within the scope of the present invention.

Claims

1. A fully enclosed wastewater collection and reuse device during the removal of riverbed slabs, characterized in that: It includes a water storage tank (6), a sedimentation tank (5) and a control box. The water storage tank (6) is installed on the disc-type full-span scaffold of the riverbed slab demolition structure, below the lowest point of the PE waterproof cloth above the wooden template. The water storage tank (6) is equipped with a float sensor (7) at the top and a submersible sewage pump (8) at the bottom. The submersible sewage pump (8) is connected to the sedimentation tank (5) through a PVC pipeline (9). The sedimentation tank (5) includes a rectangular pool body composed of a support frame erected by multiple uprights (1) and horizontal bars (2) and a waterproof cloth (3).

2. The fully enclosed wastewater collection and reuse device during the removal of riverbed slabs as described in claim 1, characterized in that: The float sensor (7) is fixed to the side wall of the water storage tank (6) by a stainless steel bracket. The low liquid level contact is at an elevation of 0.2m and the high liquid level contact is at an elevation of 0.6m.

3. The fully enclosed wastewater collection and reuse device during the removal of riverbed slabs as described in claim 1, characterized in that: The waterproof cloth (3) is installed on the horizontal bar (2) at the top of the support frame by means of hooks (4).

4. The fully enclosed wastewater collection and reuse device during the removal of riverbed slabs as described in claim 1, characterized in that: The sedimentation tank (5) is designed with a trapezoidal cross-section, with a bottom width of 2m, a top width of 3m, and a depth of 1.5m, forming a bottom slope of 1%.

5. The fully enclosed wastewater collection and reuse device during the removal of riverbed slabs as described in claim 1, characterized in that: The bottom of the sedimentation tank (5) is covered with an HDPE geomembrane: 2mm thick, with a permeability coefficient ≤1×10⁻⁶. - ¹²cm / s, the joint is made by hot-melt welding, and the overlap width is ≥10cm.

6. The fully enclosed wastewater collection and reuse device during the removal of riverbed slabs as described in claim 1, characterized in that: The submersible sewage pump (8) has the following specifications: 40WQ7-15-1.1, flow rate: 7m³ / h, head: 15m, and outlet diameter: 40mm.

7. The fully enclosed wastewater collection and reuse device during the removal of riverbed slabs as described in claim 1, characterized in that: The control box houses a PLC controller and a power supply system. The PLC controller integrates an RS485 communication interface and supports manual / automatic switching. The power supply system is equipped with an independent residual current circuit breaker (RCCB) C32A and a UPS uninterruptible power supply with a runtime of ≥2 hours.

8. The fully enclosed wastewater collection and reuse device during the removal of riverbed slabs as described in claim 1, characterized in that: It also includes a sludge tank (10), which is a square tank consisting of four uprights (1), eight horizontal bars (2) and a waterproof cloth (3).

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