Water circulation energy-saving foundation pit of solid waste wet processing system

Abstract

The utility model relates to a water circulation energy-saving foundation pit of a solid waste wet processing system. Comprising a foundation pit, and a foundation pit support is arranged in the foundation pit; a clean water tank is arranged on the bottom surface of the foundation pit, a sewage well is dug, a filtering mounting ring is fixedly connected to a wellhead of the sewage well, a filtering piece is detachably connected to the wellhead of the sewage well, and a cleaning device is arranged in the filtering piece; the cleaning device comprises a support structure, and a filter screen cleaning assembly and a sludge cleaning assembly are installed on the support structure. A submersible pump and a water lifting pipeline are arranged in the sewage well, and a water return pipeline is arranged at a water outlet of the water lifting pipeline; a main water outlet pipeline is mounted at a water outlet of the clear water tank, a water supplementing pipeline and a high-pressure water outlet pipeline are mounted at a water outlet of the main water outlet pipeline, and a high-pressure cleaning part is mounted on the high-pressure water outlet pipeline; and a water inlet pipeline is mounted at the water inlet of the clear water tank. According to the utility model, the generated wastewater can be collected in a centralized manner and is filtered, so that the sewage is recycled, water resources are saved, and the environmental awareness is met; meanwhile, filter screen cleaning and filtered matter discharging operation can be conducted regularly, the automation degree is high, and the operation process is simple.

Description

TECHNICAL FIELD

[0001] The utility model belongs to building foundation pit technical field especially relates to a water circulation energy -conserving foundation pit of solid waste wet process system. BACKGROUND

[0002] Solid waste refers to solid, semi-solid waste substances that human produces in production, consumption, life, wherein coal dry stone, soil, slag etc. can be used to prepare non -firing brick, realizes waste utilization. Non -firing brick can adopt wet forming process to carry out embryo body forming, after a period of curing, embryo body strength reaches certain requirement after certain process treatment.

[0003] In the process of using wet forming process to carry out embryo body forming, in view of the mixture for preparing non -firing brick is wet material, in the process of forming, extra water will be discharged, in addition, in the curing process of non -firing brick, need through water pipe to water or spray non -firing brick, make it fully absorb water, and extra water is directly discharged into sewer and flows away. Therefore, in solid waste wet process system, a large amount of sewage will be produced, and the sand content in sewage is relatively large.

[0004] In order to avoid the above-mentioned sewage directly discharging to cause environmental pollution, often directly digs out a water collecting pit to carry out centralized collection to sewage, but, the above-mentioned water collecting pit structure is relatively simple, and the function is single, only can carry out collection to sewage, cannot carry out recycling to sewage, and the wasted water resource is more, does not accord with environmental protection consciousness. CONTENT OF UTILITY MODEL

[0005] The utility model provides a water circulation energy -conserving foundation pit of solid waste wet process system for solving the technical problems in prior art. The utility model can concentrate the wastewater produced in the solid waste wet process system, filter the collected wastewater, recycle the wastewater, save water resources, accord with environmental protection consciousness, regularly clean the filter screen and discharge the filtered material, have high automation degree and simple operation process.

[0006] The technical solution adopted by this utility model to solve the technical problems existing in the prior art is as follows: A water circulation energy-saving foundation pit for a solid waste wet treatment system includes a foundation pit excavated on the ground, and a foundation pit support is installed inside the foundation pit; a clean water tank is installed at the bottom of the foundation pit and a sewage well is excavated; a filter mounting ring is fixedly connected to the opening of the sewage well, and a filter element is detachably connected to the filter mounting ring. The filter element has a truncated cone structure, and a cleaning device is installed inside the filter element for cleaning the filter element and discharging the cleaned material; the cleaning device includes a support structure installed at the bottom of the foundation pit, and a filter screen is installed on the support structure. The system includes a cleaning assembly for cleaning the filter elements; a sludge cleaning assembly coaxially arranged with the filter cleaning assembly for discharging the sludge removed by the filter cleaning assembly; a submersible pump is installed in the sewage well, and a water lifting pipeline is installed at the outlet of the submersible pump, with a return water pipeline connected to the outlet of the water lifting pipeline via a tee fitting; a main water outlet pipeline is installed at the outlet of the clean water tank, and a water supply pipeline and a high-pressure water outlet pipeline are installed at the outlet of the main water outlet pipeline via a tee fitting, with a high-pressure cleaning component installed on the high-pressure water outlet pipeline; and an inlet water pipeline connected to the water source is installed at the inlet of the clean water tank.

[0007] The advantages and positive effects of this utility model are as follows: This utility model provides a water circulation energy-saving pit for a solid waste wet treatment system. Through the installed filter elements, sewage flowing into the sewage well can be filtered, preventing solid impurities in the sewage from entering the sewage well. A cleaning device consisting of a filter screen cleaning component and a sludge cleaning component can periodically clean the filter elements and the filtered sludge impurities. The filter screen cleaning component can periodically clean the filter elements, and the sludge cleaning component can promptly discharge the cleaned sludge impurities, eliminating the need for manual cleaning and sewage discharge operations by staff, thus reducing the labor intensity of workers. Through the installed submersible pump, water lifting pipeline, and return water pipeline, the water resources after filtration can be recycled back into the solid waste wet treatment system, saving water resources and conforming to environmental awareness. Through the installed clear water tank, main outlet pipeline, and water replenishment pipeline, clear water can be added to the return water pipeline when needed. Through the installed high-pressure water outlet pipeline and high-pressure cleaning component connected to the main outlet pipeline, the clear water in the clear water tank can be used to perform high-pressure cleaning of the equipment in the solid waste wet treatment system, providing rich functionality. In summary, this utility model can centrally collect wastewater generated in a wet solid waste treatment system, filter the collected wastewater, and then recycle the wastewater, saving water resources and conforming to environmental protection awareness. At the same time, it can regularly clean the filter screen and discharge the filtered material, with a high degree of automation and simple operation.

[0008] Preferably, the filter screen cleaning assembly comprises a cleaning rotating sleeve connected to the support structure in a longitudinal rotating mode, a cleaning scraper connected to the outer wall of the cleaning rotating sleeve through a rod, and the cleaning scraper is attached to the inner surface of the peripheral wall of the filter element; a scraper motor is installed on the support structure, a driving sprocket is connected to the output shaft of the scraper motor through a key, and a driven sprocket is installed on the outer wall of the cleaning rotating sleeve; and a transmission chain is installed between the driven sprocket and the driving sprocket.

[0009] Preferably, the sludge cleaning assembly comprises a cleaning cylinder connected to the bottom surface of the filter element through a plurality of supporting rods, the bottom surface of the cleaning cylinder is open, and a gap is formed between the bottom surface of the cleaning cylinder and the bottom surface of the filter element for slurry flow; a cleaning auger is arranged in the cleaning cylinder and connected to the filter element in a rotating mode; a cleaning rotating shaft is coaxially connected to the cleaning auger; a lifting motor is installed on the support structure and used to drive the cleaning rotating shaft to rotate; a discharge chute is arranged at the upper part of the cleaning cylinder and connected to the filter screen cleaning assembly in a gap matching mode.

[0010] Preferably, a plurality of pit support columns are arranged in the pit in a triangular shape and used to support the solid waste treatment equipment; and a plurality of pit support columns are arranged on the ground outside the pit.

[0011] Preferably, the water return pipeline comprises a total water return pipe connected to the water supply pipeline through a three-way pipe; a water return pump, a control valve and a pressure gauge are installed on the total water return pipe; a first water return branch and a second water return branch are installed on the total water return pipe through a three-way pipe; and control valves are installed on the first water return branch and the second water return branch.

[0012] Preferably, the water supply pipeline comprises a total water supply pipe connected to the total water outlet pipeline through a three-way pipe; a water supply pump, a control valve and a pressure gauge are installed on the total water supply pipe; a clean water branch one and a clean water branch two are installed on the total water supply pipe through a three-way pipe; and control valves are installed on the clean water branch one and the clean water branch two; the clean water branch two is connected to the water return pipeline through a three-way pipe.

[0013] Preferably, the water inlet pipeline comprises a total water inlet pipe connected to the water inlet of the clean water tank; the total water inlet pipe is connected to a water source; a water inlet pump, a control valve and a pressure gauge are installed on the total water inlet pipe. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a schematic view of the front view and the cross-sectional view of the utility model;

[0015] Figure 2 is a schematic view of the front view and the cross-sectional view of the cleaning device in the utility model;

[0016] Figure 3 is the water inlet and outlet pipeline schematic diagram in the utility model;

[0017] Figure 4 is the three-dimensional structure schematic diagram of part structure of the utility model.

[0018] In the drawing: 1, filter; 2, sewage well; 3, submersible pump; 4, water lifting pipeline; 5, backwater pipeline; 5-1, backwater pump; 5-2, first backwater branch; 5-3, second backwater branch; 6, foundation pit support; 7, foundation pit; 8, cleaning device; 8-1, cleaning auger; 8-2, cleaning cylinder shell; 8-3, cleaning scraper; 8-4, cleaning rotating shaft; 8-5, cleaning rotating sleeve; 8-6, driven sprocket; 8-7, lifting motor; 8-8, positioning sleeve; 8-9, driving sprocket; 8-10, scraper motor; 8-11, cleaning top frame; 8-12, cleaning support column; 9, water replenishing pipeline; 9-1, water replenishing pump; 9-2, clean water branch one; 9-3, clean water branch two; 10, total water outlet pipeline; 11, clean water tank; 12, high-pressure water outlet pipeline; 13, water inlet pipeline; 13-1, water inlet pump; 14, high-pressure cleaning part; 15, filter mounting ring; 16, in-pit support column; 17, out-pit support column. DETAILED DESCRIPTION

[0019] In order to further understand the invention content, characteristics and effects of the utility model, the following embodiments are described in detail as follows:

[0020] Please refer to Figure 1 The water recycling energy-saving foundation pit of the solid waste wet treatment system comprises a foundation pit 7 dug on the ground, and a foundation pit support 6 arranged in the foundation pit 7; a clean water tank 11 is arranged on the bottom surface of the foundation pit 7, and a sewage well 2 is dug, a filter mounting ring 15 is fixedly connected to the well mouth of the sewage well 2, and a plurality of mounting blocks distributed in the circumferential direction are fixedly connected to the well mouth of the sewage well 2 for the convenience of mounting the filter mounting ring 15, and the mounting blocks are used for mounting the filter mounting ring 15, and in the embodiment, the mounting blocks are cement mounting blocks, and a screw rod for mounting the filter mounting ring 15 is arranged on the cement mounting block.

[0021] The filter mounting ring 15 is detachably connected with a filter 1, the filter 1 is in a conical table structure, a cleaning device 8 is arranged in the filter 1 for cleaning the filter 1 and discharging the cleaning material. Figure 2 The cleaning device 8 comprises a support structure arranged on the bottom surface of the foundation pit 7, a filter screen cleaning assembly is arranged on the support structure for cleaning the filter 1, and a sludge cleaning assembly coaxial with the filter screen cleaning assembly is arranged for discharging the sludge cleaned by the filter screen cleaning assembly.

[0022] The filter screen cleaning assembly comprises a cleaning rotating sleeve 8-5 connected to the support structure in longitudinal rotation, a cleaning scraper 8-3 connected to the outer wall of the cleaning rotating sleeve 8-5 through a rod, and the cleaning scraper 8-3 is attached to the inner surface of the peripheral wall of the filter element 1. The filter screen cleaning assembly further comprises a scraper motor 8-10 installed on the support structure, a driving sprocket 8-9 connected to the output shaft of the scraper motor 8-10, and a driven sprocket 8-6 installed on the outer wall of the cleaning rotating sleeve 8-5, and a transmission chain is installed between the driven sprocket 8-6 and the driving sprocket 8-9.

[0023] Further, the rod is connected to the cleaning scraper 8-3 through a bolt, the outer end of the rod is connected to the cleaning scraper 8-3, and the middle of the rod is connected to a vertical connecting rod. The lower end of the connecting rod is fixedly connected to the cleaning scraper 8-3. The rod, the connecting rod and the cleaning scraper 8-3 form a relatively stable triangular structure, which improves the structural stability of the cleaning scraper 8-3.

[0024] In addition, the sludge cleaning assembly comprises a cleaning cylinder 8-2 fixedly connected to the bottom surface of the filter element 1 through a plurality of supporting rods, and the filter element 1 and the cleaning cylinder 8-2 are coaxially arranged. The bottom surface of the cleaning cylinder 8-2 is open and has a gap between the bottom surface of the filter element 1 for the flow of slurry. A cleaning auger 8-1 is arranged in the cleaning cylinder 8-2 and is rotatably connected to the filter element 1. The cleaning cylinder 8-2 is rotatably connected to the filter screen cleaning assembly. The cleaning auger 8-1 is coaxially connected to the cleaning rotating shaft 8-4. A lifting motor 8-7 is installed on the support structure to drive the cleaning rotating shaft 8-4 to rotate. An outlet chute is arranged at the upper part of the cleaning cylinder 8-2 and is connected to the outlet chute. The outer end of the outlet chute is in gap cooperation with the rotating filter screen cleaning assembly.

[0025] In order to avoid the influence of the outlet chute arranged at the upper part of the cleaning cylinder 8-2 on the rotation of the cleaning scraper 8-3, and to ensure that the sludge cleaning assembly can discharge the cleaned sludge to the outside of the filter element 1 during operation, a sludge discharge pipeline is detachably connected to the outlet chute. When the filter screen cleaning assembly is working, the outlet chute and the sludge discharge pipeline are disconnected. When the sludge cleaning assembly is working, the filter screen cleaning assembly stops running, and the sludge discharge pipeline is installed on the outlet chute, and the outlet of the sludge discharge pipeline is located outside the filter element 1.

[0026] Further, the support structure comprises a plurality of cleaning struts 8-12 fixed at the bottom of the foundation pit 7, a cleaning top frame 8-11 fixed on the plurality of cleaning struts 8-12, a positioning sleeve 8-8 fixed on the cleaning top frame 8-11, a cleaning rotating sleeve 8-5 rotatably connected with the positioning sleeve 8-8 through a rolling bearing, and a slot for the chain to pass through is formed on the outer wall of the positioning sleeve 8-8. In addition, in order to play a protective role and avoid damage to the motor due to water ingress, protective covers are installed on the support structure to cover the outside of the lifting motor 8-7 and the scraper motor 8-10.

[0027] In order to recycle the filtered wastewater, further referring to Figure 1 A submersible pump 3 is arranged in the sewage well 2, a water lifting pipeline 4 is installed at the water outlet of the submersible pump 3, a water return pipeline 5 is installed at the water outlet of the water lifting pipeline 4 through a three-way pipe fitting; a total water outlet pipeline 10 is installed at the water outlet of the clean water tank 11, a water supplement pipeline 9 and a high-pressure water outlet pipeline 12 are installed at the water outlet of the total water outlet pipeline 10 through a three-way pipe fitting, a high-pressure cleaning device 14 is installed on the high-pressure water outlet pipeline 12, and a high-pressure water pump is arranged in the high-pressure cleaning device 14. In addition, a water inlet pipeline 13 connected with a water source is installed at the water inlet of the clean water tank 11, and a liquid level meter is arranged in the clean water tank 11 for real-time sensing of the liquid level in the clean water tank 11. When the liquid level is lower than a preset position, the water inlet pump 13-1 is controlled to start and supplement clean water into the clean water tank 11.

[0028] As shown in Figure 3 The water return pipeline 5 comprises a total water return pipeline connected with the water supplement pipeline 9 through a three-way pipe fitting, a water return pump 5-1, a control valve and a pressure gauge are installed on the total water return pipeline; a first water return branch 5-2 and a second water return branch 5-3 are installed on the total water return pipeline through a three-way pipe, control valves are installed on the first water return branch 5-2 and the second water return branch 5-3, the water outlets of the first water return branch 5-2 and the second water return branch 5-3 can be connected with devices in the solid waste wet treatment system, so that the recycled wastewater flowing out of the water outlets of the first water return branch 5-2 and the second water return branch 5-3 can participate in the work of the solid waste wet treatment system again.

[0029] As shown in Figure 3As shown, the above-mentioned water supplement pipeline 9 includes a total water supplement pipe connected with the total water outlet pipeline 10 through a three-way pipe, and a water supplement pump 9-1, a control valve and a pressure gauge are installed on the total water supplement pipe; it also includes a clean water branch 9-2 and a clean water branch 9-3 installed on the total water supplement pipe through a three-way pipe, and a control valve is installed on each of the clean water branch 9-2 and the clean water branch 9-3; the clean water branch 9-3 is connected with the water return pipeline 5 through a three-way pipe. Among them, the above-mentioned clean water branch 9-2 can be connected with other devices or equipment that need clean water to participate. In addition, a pressure gauge and a control valve are installed on the total water outlet pipeline 10.

[0030] As shown in Figure 3 As shown, the above-mentioned water supplement pipeline 9 includes a total water supplement pipe connected with the total water outlet pipeline 10 through a three-way pipe, and a water supplement pump 9-1, a control valve and a pressure gauge are installed on the total water supplement pipe; it also includes a clean water branch 9-2 and a clean water branch 9-3 installed on the total water supplement pipe through a three-way pipe, and a control valve is installed on each of the clean water branch 9-2 and the clean water branch 9-3; the clean water branch 9-3 is connected with the water return pipeline 5 through a three-way pipe. Among them, the above-mentioned clean water branch 9-2 can be connected with other devices or equipment that need clean water to participate. In addition, a pressure gauge and a control valve are installed on the total water outlet pipeline 10.

[0031] Further referring to Figure 4 A plurality of pit support columns 16 in a triangular shape are installed in the foundation pit 7 for supporting the solid waste treatment equipment, and a plurality of pit support columns 17 connected with the ground are arranged on the periphery of the foundation pit 7.

[0032] Working principle:

[0033] In the actual working process, the wastewater generated by the solid waste wet treatment system is filtered by the filter 1 and then discharged into the sewage well 2, and the solid particles in the wastewater are intercepted by the filter 1. After a period of work, the filter 1 needs to be cleaned regularly by the filter screen cleaning assembly in the cleaning device 8 to avoid the solid particles intercepted by the filter 1 from blocking the screen holes of the filter 1 and affecting the subsequent filtering effect, that is, the scraper motor 8-10 is started, and under the transmission of the driven sprocket 8-6, the driving sprocket 8-9 and the chain, the cleaning rotating sleeve 8-5 is driven to rotate, and then drives the cleaning scraper 8-3 installed on the cleaning rotating sleeve 8-5 to rotate, so as to clean the circumferential wall of the filter 1, and the impurities cleaned out flow to the bottom surface of the filter 1.

[0034] When the impurities scraped off by the cleaning scraper 8-3 need to be cleaned out of the filter 1, the operation of the filter screen cleaning assembly needs to be stopped, and the sewage discharge pipeline is installed on the discharge chute, so that the discharge opening of the sewage discharge pipeline is located outside the filter 1, thereby facilitating the collection of the discharged sludge impurities, and then the lifting motor 8-7 in the sludge cleaning assembly is started to drive the cleaning rotating shaft 8-4 installed thereon to rotate, and then drive the cleaning auger 8-1 to rotate. The rotating cleaning auger 8-1 can lift the sludge impurities accumulated at the bottom of the filter 1 upward along the cleaning cylinder shell 8-2, and the lifted sludge impurities are discharged from the discharge chute and the sewage discharge pipeline at the upper part of the cleaning cylinder shell 8-2 to the outside of the filter 1, thereby achieving the purpose of cleaning the filter 1 and discharging the sludge.

[0035] The sewage filtered by the filtering member 1 can flow into the backwater pipeline 5 under the lifting action of the submersible pump 3 and the water lifting pipeline 4, and participate in the solid waste wet treatment system under the action of the backwater pump 5-1 in the backwater pipeline 5. When the above circulating water is insufficient to meet the normal operation of the solid waste wet treatment system, the control valve on the total water outlet pipeline 10, the control valve on the total water supplement pipeline in the water supplement pipeline 9, the water supplement pump 9-1 and the control valve on the clean water branch 2 9-3 can be opened, so as to realize the purpose of supplementing water to the backwater pipeline 5.

[0036] Since the clean water tank 11 is connected with the high-pressure cleaning member 14 through the total water outlet pipeline 10 and the high-pressure water outlet pipeline 12, the clean water in the clean water tank 11 can be used to clean the devices and equipment in the solid waste wet treatment system under high pressure. The waste water generated in the cleaning process can be filtered again in the filtering member 1 and then flow into the sewage well 2 to participate in the circulation again. When the liquid level in the clean water tank 11 is lower than the preset position, the water inlet pump 13-1 and the control valve in the water inlet pipeline 13 are opened, so as to supplement clean water to the filtering member 1.

Claims

1. A water-circulating energy-saving foundation pit for a solid waste wet treatment system, characterized in that: The utility model provides a filter element (1) is set up in the well mouth of sewage well (2) in the bottom surface of the foundation pit (7) of setting up the foundation pit (7) on the ground, and the filter element (1) is detachably connected with the filter mounting ring (15) on the filter mounting ring (15), and the filter element (1) is used for filtering the sewage in the sewage well (2) and discharging the filtered water, and the filter element (1) is used for filtering the sewage in the sewage well (2) and discharging the filtered water, and the filter element (1) is used for filtering the sewage in the sewage well (2) and discharging the filtered water, and the filter element (1) is used for filtering the sewage in the sewage well (2) and discharging the filtered water, and the filter element (1) is used for filtering the sewage in the sewage well (2) and 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the sewage well (2) and discharging the filtered water, and the filter element (1) is used for filtering the sewage in the sewage well (2) and discharging the filtered water, and the filter element (1) is used for filtering the sewage in the sewage well (2) and discharging the filtered water, and the filter element (1) is used for filtering the sewage in the sewage well (2) and discharging the filtered water, and the filter element (1) is used for filtering the sewage in the sewage well (2) and discharging the filtered water, and the filter element (1) is used for filtering the sewage in the sewage well (2) and discharging the filtered water, and the filter element (1) is used for filtering the sewage in the sewage well (2) and discharging the filtered water, and the filter element (1) is used for filtering the sewage in the sewage well (2) and discharging the filtered water, and the filter element (1) is used for filtering the sewage in the sewage well (2) and discharging the filtered water, and the filter element (1) is used for filtering the sewage in the sewage well (2) and discharging the filtered water, and the filter 2. The water recycling and energy saving foundation pit of solid waste wet treatment system according to claim 1, characterized in that: ​ 3. The water recycling and energy saving foundation pit of solid waste wet treatment system according to claim 1, characterized in that: ​ 4. The water recycling and energy saving foundation pit of solid waste wet treatment system according to claim 1, characterized in that: ​ 5. The water recycling and energy saving foundation pit of solid waste wet treatment system according to claim 1, characterized in that: The backwater pipeline (5) comprises a total backwater pipe connected with the water supplement pipeline (9) through a three-way pipe fitting, a backwater pump (5-1), a control valve and a pressure gauge are installed on the total backwater pipe; the first backwater branch (5-2) and the second backwater branch (5-3) are installed on the total backwater pipe through three-way pipelines, and control valves are installed on the first backwater branch (5-2) and the second backwater branch (5-3).

6. The water recycling and energy saving foundation pit of solid waste wet treatment system according to claim 1, characterized in that: The water supplement pipeline (9) comprises a total water supplement pipe connected with the total water outlet pipeline (10) through a three-way pipe fitting, a water supplement pump (9-1), a control valve and a pressure gauge are installed on the total water supplement pipe; the first clean water branch (9-2) and the second clean water branch (9-3) are installed on the total water supplement pipe through three-way pipelines, and control valves are installed on the first clean water branch (9-2) and the second clean water branch (9-3); the second clean water branch (9-3) is connected with the backwater pipeline (5) through a three-way pipeline.

7. The water recycling and energy saving foundation pit of solid waste wet treatment system according to claim 1, characterized in that: The water inlet pipeline (13) comprises a total water inlet pipe connected with the water inlet of the clean water tank (11), the total water inlet pipe is connected with a water source, a water inlet pump (13-1), a control valve and a pressure gauge are installed on the total water inlet pipe.

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