Integrated sewage treatment device and operation method thereof

Abstract

The present invention provides an integrated sewage treatment device and an operation method thereof. The device comprises a clean water tank, a sewage tank and a filter. Untreated sewage is stored in the sewage tank, filtered clean water is stored in the clean water tank, a water inlet and a drainage pump are provided in the clean water tank, and the filter includes a tank body, a filter piston is provided in the tank body, the filter piston is connected to the piston rod of a piston cylinder, the piston cylinder is provided outside the tank body or in the tank body, the filter piston divides the tank body into a clean water chamber and a sewage chamber, a sewage port on the side wall of the sewage chamber is provided with a sewage valve, the sewage port is connected to the sewage tank through a pipeline and a sewage pump, the clean water chamber is connected to the water inlet of the clean water tank or the sewage port of another set of filters through a pipeline, a slag discharge port is provided at the bottom of the sewage chamber, and a slag discharge valve is provided at the slag discharge port. The sewage treatment device is integrated and modularized, easy to install and transfer, and filters and treats sewage.

Description

Technical Field

[0001] The present invention relates to the field of sewage treatment equipment, and in particular to an integrated sewage treatment device and an operating method thereof. Background Art

[0002] The treatment and discharge of sewage in tunnel construction has always been a difficult problem, because the traditional sewage treatment system occupies a large area, requires a lot of equipment, is difficult to turn around and install, and has poor flexibility. This application adopts an integrated and modular approach, and integrates sewage treatment equipment into small modules through new processes and new devices, which are easy to install and transfer, and have better versatility and economy, effectively solving the above problems. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an integrated sewage treatment device and an operating method thereof, which is integrated and modularized, easy to install, dismantle and transfer, and can filter and treat sewage.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: an integrated sewage treatment device, including a clean water tank, a sewage tank and a filter. Untreated sewage is stored in the sewage tank, and filtered clean water is stored in the clean water tank. The clean water tank is provided with a water inlet and a drainage pump. The filter includes a tank body, a vertically arranged filter piston is provided in the tank body, the filter piston is connected to the piston rod of the piston cylinder, the piston cylinder is arranged on the side wall of the tank body, the filter piston divides the tank body into a clean water chamber and a sewage chamber, the sewage outlet on the side wall of the sewage chamber is provided with a sewage valve, the sewage outlet is connected to the sewage tank through a pipeline and a sewage pump, the clean water chamber is connected to the water inlet of the clean water tank or the sewage outlet of another group of filters through a pipeline, a slag discharge outlet is provided at the bottom of the sewage chamber, and a slag discharge valve is provided at the slag discharge outlet.

[0005] In a preferred embodiment, the filter piston is composed of a flexible multi-layer filter material lined with a steel support.

[0006] In a preferred solution, a steel frame is provided on the outside of the clean water tank, and the sewage tank and the filter are placed on the upper side of the steel frame.

[0007] In the preferred scheme, a cleaning partition is provided in the sewage chamber, and the cleaning partition and the outer wall of the tank body form a jet chamber. A plurality of nozzles for spraying jets to the filter piston are provided on the cleaning partition, and the nozzles are connected to the check valve, the jet pipeline and the main air valve in sequence, and the main air valve is connected to the air compressor through the air pipe.

[0008] In a preferred embodiment, a slag discharger is provided below the filter, and the slag discharger is a screw conveyor. The material chamber of the screw conveyor is located below the slag discharge port, and a first slag discharge port is provided at one end of the slag discharger. The screw conveyor rotates forward to store material and reverses to transport the sludge toward the first slag discharge port for discharge.

[0009] In a preferred solution, the first slag outlet is provided with a first chute, and the first chute is arranged above the slag collecting hopper.

[0010] In a preferred solution, a spiral feeding mechanism is provided in the slag collecting bucket, and the spiral feeding mechanism includes a feeding shaft arranged in the slag collecting bucket, and the feeding shaft is provided with spiral blades. The feeding shaft is driven by a motor, and a second slag outlet is provided at one end of the slag collecting bucket, and a second chute is provided at the second slag outlet.

[0011] In a preferred embodiment, the first chute or the second chute comprises multiple chute sections, which are nested with each other to form a telescopic chute. A telescopic cylinder is fixed at the end of the slag discharger or the slag collecting bucket, and the telescopic rod of the telescopic cylinder is hinged to the last chute section. A supporting roll is provided at the end of the slag discharger or the slag collecting bucket, and a limiting roll that cooperates with the supporting roll is provided at the end of the first chute section.

[0012] In a preferred solution, the chute section is an arc-shaped trough that is larger at the top and smaller at the bottom.

[0013] In the preferred solution, a lower limit hook is provided on the inner side of the lower end of the chute section, and an upper limit hook is provided on the outer side of the upper end. After the chute is extended and expanded, the upper limit hook of the chute section engages with the lower limit hook of the chute section of the previous section.

[0014] In the preferred scheme, the water inlet of the sewage tank is sequentially provided with a sewage inlet valve and a sewage inlet pan, the discharge outlet of the sewage pump is provided with a sewage discharge pan, the water inlet of the clean water tank is provided with a water inlet pan, and the sewage inlet pan, the sewage discharge pan and the water inlet pan are all provided with a plurality of water inlets, which are threadedly connected to the connected pipes.

[0015] In a preferred solution, a one-way valve is provided in the water delivery port.

[0016] In a preferred solution, a plurality of vertically arranged damping plates are provided in the water purification tank.

[0017] The present invention also provides an operating method of an integrated sewage treatment device, comprising the following steps:

[0018] Step 1: Store the construction wastewater in a sewage tank, and transport the wastewater to the sewage chamber of the filter through a sewage pump and pipeline;

[0019] Step 2: Start the piston cylinder, the filter piston moves toward the sewage chamber, and under the action of pressure, the sewage passes through the filter piston and enters the clean water chamber. The clean water after pressure filtration is transported to the clean water tank through the pipeline for storage or to the next set of filters for pressure filtration, and the piston cylinder retracts and resets;

[0020] Step 3: Open the slag discharge valve at the slag discharge port to allow the sludge in the sewage chamber to fall out;

[0021] Step 4: When the filter piston needs to be cleaned after multiple filtrations, start the piston cylinder to move the filter piston to the side of the cleaning baffle, turn on the air compressor and the main air valve, and the high-pressure gas enters from the main air valve through the air compressor pipeline, is diverted through the jet pipe, and then sprayed out from the nozzle on the cleaning baffle. The sprayed gas impacts the filter piston and flushes the filter residue down. After cleaning, open the slag discharge valve at the slag discharge port, the sludge in the sewage chamber falls out, and the piston cylinder retracts and resets.

[0022] In the preferred scheme, in the step 2, at least two groups of filters are provided, and the clean water after filtration by the first group of filters is transported to the next group of filters for re-filtration. Along the order of sewage filtration, the pores of the filter pistons of the filters gradually become smaller, and the clean water after filtration by the last group of filters is transported to a clean water tank for storage.

[0023] In the preferred scheme, in the step 2, multiple groups of filters are provided, the sewage discharge tray of the sewage tank is connected to the sewage outlets of the multiple groups of filters through multiple pipes at the same time, the multiple groups of filters are operated simultaneously, and the clean water after pressure filtration is transported to the clean water tank through pipes and water inlet trays.

[0024] In the preferred scheme, in the step three, the sludge in the sewage chamber falls into the slag discharger, and is transported to the first slag outlet by screw conveyor. The screw conveyor rotates forward to store the material, and transports the sludge in the opposite direction of the first slag outlet to store the material. The screw conveyor reverses and transports the sludge in the direction of the first slag outlet to discharge the material, and the material is discharged into the slag collecting bucket for slag collection.

[0025] In the preferred scheme, in the step three, before the slag discharger discharges materials, it first starts the telescopic cylinder on the lower side of the first chute to pull out each chute section to extend and expand the first chute; when the slag discharge is completed, the telescopic cylinder retracts to retract each chute section to retract and store the first chute.

[0026] The present invention provides an integrated sewage treatment device and an operating method thereof, which have the following beneficial effects:

[0027] 1. Modular design. This device adopts modular design, which is convenient for transportation and can be quickly connected and expanded according to the required processing capacity. For example, any number of filters can be quickly connected in parallel or in series as needed, with good scale benefits.

[0028] 2. Highly integrated. This device integrates multiple processes such as multi-stage treatment of waste liquid, waste residue collection, and clean liquid classification into one device, meeting the use requirements in caverns and small spaces.

[0029] 3. Diverse functions. This device can be used not only for wastewater treatment, but also for the treatment of various waste liquids. It can be used in various occasions such as water conservancy and hydropower, various types of construction, environmental protection, production and domestic water supply, etc. It has diverse functions and a wide range of applications.

[0030] 4. Simple and practical. The device has a delicate and simple structure, is easy to install and maintain, is very practical, and is very suitable for large-scale application and promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0033] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 It is a schematic diagram of the structure of the filter and the slag discharger;

[0035] Figure 3 This is a schematic diagram of the nozzle installation;

[0036] Figure 4 for Figure 3 Right view of;

[0037] Figure 5 for Figure 3 Left view of

[0038] Figure 6 It is a schematic diagram of the structure of the first chute or the second chute;

[0039] Figure 7 for Figure 6 Schematic diagram of the structure in the middle B direction;

[0040] Figure 8 It is a schematic diagram of the structure of the sewage tray;

[0041] Fig. 9 for Figure 1 The structural diagram of the slag collecting bucket in the middle A direction;

[0042] Fig.10 This is a schematic diagram of pipeline connection in Example 1 of the present invention;

[0043] Fig.11 This is a schematic diagram of pipeline connection in Example 2 of the present invention;

[0044] In the figure: water tank 1, sewage tank 2, filter 3, drainage pump 4, sewage pump 5, air compressor 6, slag discharger 7, slag collecting bucket 8, feeding shaft 9, spiral blade 10, chute section 11, telescopic cylinder 12, supporting roll plate 13, sewage inlet tray 14, sewage discharge tray 15, water inlet tray 16, water delivery port 17, one-way valve 18, steel frame 19, telescopic cylinder 20, sewage inlet valve 21, lower limit hook 22, upper limit hook 23, damping plate 101, tank body 301, filter piston 302, piston cylinder 303, clean water chamber 304, sewage chamber 305, sewage valve 306, slag discharge port 307, cleaning baffle 308, jet chamber 309, nozzle 310, check valve 311, jet pipe 312, main air valve 313, first slag discharge port 701, first chute 702, second slag discharge port 801, second chute 802, limiting coil 1101. DETAILED DESCRIPTION

[0045] The technical solution of the present invention will be further explained and described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0047] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0049] like Figures 1 to 11As shown, an integrated sewage treatment device includes a clean water tank 1, a sewage tank 2 and a filter 3. A power cabinet and an electric control cabinet are respectively arranged at appropriate positions above the clean water tank 1. The power cabinet is used to provide power and its control device for the entire system; the control cabinet is equipped with a communication system, control software and hardware, etc., for the overall control of the device.

[0050] This device adopts a multi-layer modular layout:

[0051] The first layer is provided with a clean water tank 1, in which filtered clean water is stored. The clean water tank 1 is provided with a water inlet and a drainage pump 4. The clean water tank 1 is designed to be of standard size. The clean water tank 1 selects one or more clean water tanks according to the type and capacity of the clean water required, so as to facilitate transportation using a vehicle-mounted platform, and also facilitate assembly in series or parallel as needed. Preferably, a vertical damping plate 101 is provided inside each clean water tank 1 to effectively reduce the shaking of the liquid in the warehouse during transportation, and to avoid transportation risks or equipment damage. A steel frame 19 is provided outside the pressure-bearing tank body of the clean water tank 1, so as to place other equipment on top.

[0052] The second layer is provided with a sewage tank 2 and a filter 3. The sewage tank 2 is used to store the sewage to be treated. The water inlet of the sewage tank 2 is provided with a sewage inlet valve 21 and a sewage inlet tray 14 in sequence. The water inlet of the water tank 1 is provided with a water inlet tray 16. The water outlet of the sewage tank 2 is provided with a sewage pump 5. The drainage outlet of the sewage pump 5 is provided with a sewage drainage tray 15. Both the sewage drainage tray 14 and the sewage drainage tray 15 adopt a similar disc-shaped structure, such as Figure 8 As shown, a plurality of water delivery ports 17 connected to the quick connector hose are provided above, and a sealing gasket, a spiral port and a one-way valve 18 are provided in each water delivery port 17, so that multiple pipelines can be connected to the sewage inlet tray 14 and the sewage outlet tray 15 at the same time to transport sewage. Each quick connector is connected thereto by a spiral method, which also ensures independent water supply between each inlet and outlet.

[0053] like Figure 2 As shown, the filter 3 includes a tank body 301, which is a closed pressure vessel. A vertically arranged filter piston 302 is arranged in the tank body 301. The filter piston 302 is composed of a flexible multi-layer filter material lined with a steel support. The filter piston 302 is connected to the piston rod of the piston cylinder 303. The piston cylinder 303 is arranged on the outside or inside of the tank body 301. The filter piston 302 divides the tank body 301 into a clean water chamber 304 and a sewage chamber 305. The sewage outlet on the side wall of the sewage chamber 305 is provided with a sewage valve 306. The sewage outlet is connected to the sewage tank 2 through a pipeline and a sewage pump 5. The clean water chamber 304 is connected to the water inlet of the clean water tank 1 or the sewage outlet of another group of filters 3 through a pipeline. A slag discharge outlet 307 is provided at the bottom of the sewage chamber 305, and a slag discharge valve is provided at the slag discharge outlet 307.

[0054] The sewage introduced through the sewage tank 2 pipeline flows into the sewage chamber 305 through the sewage valve 306, and the piston cylinder 303 is activated, and the filter piston 302 moves toward the sewage chamber 305. Under the action of pressure, the sewage passes through the filter piston 302 and enters the clean water chamber 304. The clean water after pressure filtration is transported to the clean water tank 1 through a pipeline for storage and use. The treated primary clean water can be purified multiple times by connecting other filter collectors in series, and the purified water is transported to the clean water tank 1. The clean water tank 1 is provided with a water inlet and a drainage pump 4 so that clean water can be supplied to the outside when needed for production or life.

[0055] The waste liquid is purified by multiple filters 3 in series or in parallel, and each filter is an independently operated filtering unit. The filters can be assembled and stacked at will according to the processing capacity requirements. In this example, multiple layers of filters 3 are preferably arranged face to face so that a slag collecting bucket is shared to facilitate slag discharge.

[0056] Preferably, Figures 2~5 As shown, after multiple compression and filtration, the surface of the right side of the filter piston 302 facing the sewage chamber 305 will be adhered to mud and other debris, and it needs to be cleaned in time to avoid affecting the filtering effect. For this reason, an injection chamber 309 is set on the right side of the sewage chamber 305. The specific setting is that a cleaning partition 308 is provided in the sewage chamber 305, and the cleaning partition 308 and the outer wall of the tank body 301 form the injection chamber 309. The cleaning partition 308 is provided with a plurality of nozzles 310 for spraying air to the filter piston 302. The nozzles 310 are connected to the check valve 311, the injection pipe 312 and the main air valve 313 in sequence, and the main air valve 313 is connected to the air compressor 6 through the air pipe.

[0057] The cleaning process is as follows: start the piston cylinder 303 to move the filter piston 302 to the side close to the cleaning baffle 308, start the air compressor 6 and the main air valve 313, and the high-pressure gas enters from the main air valve 313 through the pipeline of the air compressor 6, and after being diverted through the jet pipe 312, it is ejected from the nozzle 310 on the cleaning baffle 308. The ejected gas impacts the filter piston 302 and washes down the filter residue. After the cleaning is completed, the slag discharge valve of the slag discharge port 307 is opened, and the sludge in the sewage chamber 305 falls out.

[0058] The air compressor 6 can also provide compressed air power for the piston cylinder, telescopic cylinders, etc. of the filter at the same time.

[0059] Preferably, a slag discharger 7 is provided below the filter 3, and the slag discharger 7 can be provided as an integral part of the filter 3. The slag discharger 7 is a screw conveyor, and the material chamber of the screw conveyor is located below the slag discharge port 307. A first slag discharge port 701 is provided at one end of the slag discharger 7. The slag discharger 7 can rotate forward and reverse. The slag discharger 7 can first rotate forward under the drive of the motor to push the filter residue falling from the slag discharge port 307 into the material chamber of the screw conveyor for temporary storage. When the slag needs to be discharged in a centralized manner, the motor is reversed to discharge the filter residue stored in the material chamber of the screw conveyor to the slag collecting bucket 8 for processing.

[0060] The first slag outlet 701 is provided with a first chute 702 , and the first chute is arranged above the slag collecting bucket 8 . By providing the first chute 702 , the filtered residue can enter the slag collecting bucket 8 from the first slag outlet 701 along the first chute 702 .

[0061] Preferably, Fig. 9 As shown, a spiral feeding mechanism is provided in the slag collecting bucket 8, and the spiral feeding mechanism includes a feeding shaft 9 arranged in the slag collecting bucket 8, and a spiral blade 10 is arranged on the feeding shaft 9. The feeding shaft 9 is driven by a motor, and a second slag outlet 801 is provided at one end of the slag collecting bucket 8, and a second chute 802 is provided at the second slag outlet 801.

[0062] After the filtered residue is discharged into the residue collecting bucket 8 through the first chute 702 for collection, the spiral blade 10 is driven by a motor to rotate, so as to facilitate the conveying of the material residue to the second residue outlet 801 for convenient removal of the residue.

[0063] Preferably, Figure 6-7 As shown, the first chute 702 or the second chute 802 includes multiple chute sections 11, and the chute sections 11 are mutually sleeved to form a retractable chute. In actual use, a chute can be provided on the upper side of the chute section 11, and a slider can be provided at the bottom. Adjacent chute sections 11 slide with each other through the chute and the slider, or both sides of the chute section 11 are provided with outward-turned limiting curling edges, and the limiting curling edge of the next section of the chute section 11 is inserted into the limiting curling edge of the previous section of the chute section, so that adjacent chute sections 11 slide with each other. A telescopic cylinder 12 is fixedly provided at the end of the slag discharger 7 or the slag collecting bucket 8, and the telescopic rod of the telescopic cylinder 12 is hinged to the last section of the chute section 11. A supporting roll plate 13 is provided at the end of the slag discharger 7 or the slag collecting bucket 8, and a limiting roll plate 1101 cooperating with the supporting roll plate 13 is provided at the end of the first section of the chute section 11.

[0064] The limiting rolling plate 1101 can rotate around the supporting rolling plate 13, so as to facilitate the angle adjustment of the first chute 702 and the second chute 802.

[0065] During specific use, the telescopic cylinder 12 drives the last chute section 11 to extend or retract relative to the previous chute section 11, and the chute sections 11 are extended or retracted in sequence until the first chute 702 or the second chute 802 is shortened to the target length.

[0066] like Figure 7 As shown, the chute section 11 is an arc-shaped trough with a larger upper part and a smaller lower part. A lower limit hook 22 is provided on the inner side of the lower end of the chute section 11, and an upper limit hook 23 is provided on the outer side of the upper end. After the chute is extended and expanded, the upper limit hook 23 of the chute section 11 is engaged with the lower limit hook 22 of the previous chute section 11. Through the cooperation between the upper limit hook 23 and the lower limit hook 22, when the telescopic cylinder 12 pushes out the chute section 11 located downstream, it is prevented from being separated from the chute section 11 of the previous section, and the inter-section is prevented from being disengaged.

[0067] The first chute 702 is designed to be retractable in order to prevent the slag from the upper filter 3 from falling on the first chute 702 of the lower filter 3, affecting the slag discharge effect of the lower layer. The upper and lower layers can discharge slag at different times, that is, when the first chute 702 corresponding to the upper filter 3 extends out to discharge slag, the first chute 702 corresponding to the lower filter 3 retracts. This is also the reason why the slag discharger 7 has a certain slag storage capacity.

[0068] The second chute 802 corresponding to the slag collecting bucket 8 is designed to be retractable, and is extended when slag is discharged. In the non-slag discharge stage, the second chute 802 is retracted to avoid interference with the operation of surrounding equipment.

[0069] Embodiment 1: An operating method of an integrated sewage treatment device, comprising the following steps:

[0070] Step 1: Store the construction wastewater in the wastewater tank 2, and transport the wastewater to the wastewater chamber 305 of the filter 3 through the wastewater pump 5 and the pipeline.

[0071] Step 2: Start the piston cylinder 303, and the filter piston 302 moves toward the sewage chamber 305. Under the action of pressure, the sewage passes through the filter piston 302 and enters the clean water chamber 304. The clean water after pressure filtration is transported to the clean water tank 1 through a pipeline for storage or transported to the next group of filters 3 for pressure filtration. The piston cylinder 303 retracts and resets. There are at least two groups of filters 3. The clean water after pressure filtration of the first group of filters 3 is transported to the next group of filters 3 for pressure filtration again. Along the order of sewage pressure filtration, the pores of the filter pistons 302 of the filters 3 gradually become smaller. The clean water after pressure filtration of the last group of filters 3 is transported to the clean water tank 1 for storage. Fig.10 shown.

[0072] Step 3: Open the slag discharge valve of the slag discharge port 307 to allow the sludge in the sewage chamber 305 to fall out.

[0073] The sludge in the sewage chamber 305 falls into the slag discharger 7, is transported to the first slag outlet 701 by screw conveyor, and is discharged into the slag collecting hopper 8 for slag collection.

[0074] Before discharging materials, the slag discharger 7 first starts the telescopic cylinder 12 on the lower side of the first chute 702 to pull out the chute sections 11 to extend and expand the first chute 702. When the filter 3 is arranged in layers, in order to prevent the first chute 702 from affecting the slag discharge effect of the lower layer, the upper and lower layers can discharge slag at different times, that is, when the first chute 702 corresponding to the upper filter 3 extends out to discharge slag, the first chute 702 corresponding to the lower filter 3 retracts. When the slag discharge is completed, all the telescopic cylinders 12 retract, and the chute sections 11 are retracted to retract the first chute 702.

[0075] Step 4. When the filter piston 302 needs to be cleaned after multiple filtrations, start the piston cylinder 303 to move the filter piston 302 to the side of the cleaning baffle 308, turn on the air compressor 6 and the main air valve 313, and the high-pressure gas enters from the main air valve 313 through the pipeline of the air compressor 6, and is diverted through the jet pipe 312, and then ejected from the nozzle 310 on the cleaning baffle 308. The ejected gas impacts the filter piston 302 and washes down the filter residue. After cleaning, open the slag discharge valve of the slag discharge port 307, and the sludge in the sewage chamber 305 falls out, and the piston cylinder 303 retracts and resets.

[0076] As an alternative embodiment, the present invention can use compressed gas or liquid for cleaning.

[0077] Embodiment 2: Different from embodiment 1, Fig.11 As shown, in the step 2, multiple groups of filters 3 are provided, the sewage discharge tray 15 of the sewage tank 2 is simultaneously connected to the sewage outlets of the multiple groups of filters 3 through multiple pipes, the multiple groups of filters 3 are operated simultaneously, and the clean water after pressure filtration is transported to the clean water tank 1 through pipes and the water inlet tray 16.

[0078] As an alternative embodiment, each piston cylinder of the present patent can be in the form of a gas cylinder or a hydraulic cylinder.

[0079] As an alternative implementation, this patented device can be used not only for sewage treatment, but also for various other occasions requiring liquid and gas filtration, and has a very wide range of applications and applicability.

[0080] The device and operation method have the following advantages:

[0081] 1. Modular design. This device adopts modular design, which is convenient for transportation and can be quickly connected and expanded according to the required processing capacity. For example, any number of filters can be quickly connected in parallel or in series as needed, with good scale benefits.

[0082] 2. Highly integrated. This device integrates multiple processes such as multi-stage treatment of waste liquid, waste residue collection, and clean liquid classification into one device, meeting the use requirements in caverns and small spaces.

[0083] 3. Diverse functions. This device can be used not only for wastewater treatment, but also for the treatment of various waste liquids. It can be used in various occasions such as water conservancy and hydropower, various types of construction, environmental protection, production and domestic water supply, etc. It has diverse functions and a wide range of applications.

[0084] 4. Simple and practical. The device has a delicate and simple structure, is easy to install and maintain, is very practical, and is very suitable for large-scale application and promotion.

[0085] The above-mentioned embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here, that is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. An integrated sewage treatment device, characterized in that: The invention comprises a clean water tank (1), a sewage tank (2) and a filter (3), wherein the sewage tank (2) stores untreated sewage, the clean water tank (1) stores filtered clean water, the clean water tank (1) is provided with a water inlet and a drainage pump (4), and the filter (3) comprises a tank body (301), a filter piston (302) arranged vertically in the tank body (301), the filter piston (302) being connected to a piston rod of a piston cylinder (303), the piston cylinder (303) being arranged on the side wall of the tank body (301), and the filter piston (302) dividing the tank body (301) into a clean water chamber (304) and a sewage chamber (305). A sewage outlet on the side wall of the sewage chamber (305) is provided with a sewage valve (306), the sewage outlet is connected to the sewage tank (2) through a pipeline and a sewage pump (5), the clean water chamber (304) is connected to the water inlet of the clean water tank (1) or the sewage outlet of another set of filters (3) through a pipeline, a slag discharge outlet (307) is provided at the bottom of the sewage chamber (305), and a slag discharge valve is provided at the slag discharge outlet (307), the sewage is purified by a plurality of filters (3) in series or in parallel, each filter (3) is an independently operated filtering unit, and the filters (3) are assembled and stacked according to the processing capacity requirements; A slag discharger (7) is provided below the filter (3). The slag discharger (7) is a screw conveyor. The material chamber of the screw conveyor is located below the slag discharge port (307). A first slag discharge port (701) is provided at one end of the slag discharger (7). The screw conveyor rotates forward to store material and reverses to convey sludge toward the first slag discharge port (701) for discharge. The first slag discharge port (701) is provided with a first chute (702). The first chute (702) is arranged above the slag collecting bucket (8). The first chute (702) includes a plurality of chute sections (11). The chute sections (11) are mutually sleeved to form a retractable chute. (7) A telescopic cylinder (12) is provided at the end, and the telescopic rod of the telescopic cylinder (12) is hinged to the last chute section (11). A supporting roll plate (13) is provided at the end of the slag discharger (7). A limiting roll plate (1101) cooperating with the supporting roll plate (13) is provided at the end of the first chute section (11). When the filter (3) is arranged in layers, in order to prevent the first chute (702) from affecting the slag discharge effect of the lower filter (3), the upper and lower layers are staggered to discharge slag. The slag discharge operation when the upper and lower layers are staggered is as follows: when the first chute (702) corresponding to the upper filter (3) extends out to discharge slag, the first chute (702) corresponding to the lower filter (3) is retracted.

2. The integrated sewage treatment device according to claim 1, characterized in that: The filter piston (302) is composed of a flexible multi-layer filter material lined with a steel support.

3. The integrated sewage treatment device according to claim 1, characterized in that: A steel frame (19) is provided on the outside of the clean water tank (1), and the sewage tank (2) and the filter (3) are placed on the upper side of the steel frame (19).

4. The integrated sewage treatment device according to claim 1, characterized in that: A cleaning baffle (308) is provided in the sewage chamber (305), and the cleaning baffle (308) and the outer wall of the tank body (301) form an air jet chamber (309). The cleaning baffle (308) is provided with a plurality of nozzles (310) for jetting air to the filter piston (302), and the nozzles (310) are connected in sequence to a check valve (311), an air jet pipeline (312) and a main air valve (313), and the main air valve (313) is connected to an air compressor (6) via an air pipe.

5. The integrated sewage treatment device according to claim 1, characterized in that: A spiral feeding mechanism is provided in the slag collecting bucket (8), the spiral feeding mechanism comprising a feeding shaft (9) arranged in the slag collecting bucket (8), a spiral blade (10) being provided on the feeding shaft (9), the feeding shaft (9) being driven by a motor, a second slag outlet (801) being provided at one end of the slag collecting bucket (8), and a second chute (802) being provided at the second slag outlet (801).

6. The integrated sewage treatment device according to claim 1, characterized in that: The chute section (11) is an arc-shaped trough that is larger at the top and smaller at the bottom.

7. The integrated sewage treatment device according to claim 1, characterized in that: The inner side of the lower end of the chute section (11) is provided with a lower limit hook (22), and the outer side of the upper end is provided with an upper limit hook (23). After the chute is extended and unfolded, the upper limit hook (23) of the chute section (11) and the lower limit hook (22) of the previous chute section (11) are interlocked.

8. The integrated sewage treatment device according to claim 1, characterized in that: The water inlet of the sewage tank (2) is provided with a sewage inlet valve (21) and a sewage inlet tray (14) in sequence, the drainage outlet of the sewage pump (5) is provided with a sewage discharge tray (15), the water inlet of the clean water tank (1) is provided with a water inlet tray (16), and the sewage inlet tray (14), the sewage discharge tray (15) and the water inlet tray (16) are all provided with a plurality of water delivery ports (17), and the water delivery ports (17) are threadedly connected to the connected pipes.

9. The integrated sewage treatment device according to claim 8, characterized in that: A one-way valve (18) is provided in the water delivery port (17).

10. The integrated sewage treatment device according to claim 1, characterized in that: A plurality of vertically arranged damping plates (101) are provided in the water purification tank (1).

11. The method for operating an integrated sewage treatment device according to any one of claims 1 to 10, characterized in that: The steps include: Step 1: storing construction wastewater in a wastewater tank (2), and transporting the wastewater to a wastewater chamber (305) of a filter (3) through a wastewater pump (5) and a pipeline; Step 2: Start the piston cylinder (303), the filter piston (302) moves toward the sewage chamber (305), and under the action of pressure, the sewage passes through the filter piston (302) and enters the clean water chamber (304). The clean water after pressure filtration is transported to the clean water tank (1) through a pipeline for storage or transported to the next set of filters (3) for pressure filtration, and the piston cylinder (303) retracts and resets; Step 3: Open the slag discharge valve of the slag discharge port (307) to allow the sludge in the sewage chamber (305) to fall out; Step 4: When the filter piston (302) needs to be cleaned after multiple filter pressings, the piston cylinder (303) is started to move the filter piston (302) to the side of the cleaning baffle (308), and the air compressor (6) and the main air valve (313) are turned on. High-pressure gas enters from the main air valve (313) through the pipeline of the air compressor (6), is diverted through the jet pipeline (312), and is then ejected from the nozzle (310) on the cleaning baffle (308). The ejected gas impacts the filter piston (302) and washes the filter residue down. After cleaning is completed, the slag discharge valve of the slag discharge port (307) is opened, and the sludge in the sewage chamber (305) falls out, and the piston cylinder (303) retracts and resets.

12. The method for operating an integrated sewage treatment device according to claim 11, characterized in that: In the step 2, at least two groups of filters (3) are provided, and the clean water after filtration by the first group of filters (3) is transported to the next group of filters (3) for re-filtration. Along the order of filtration of the sewage, the pores of the filter pistons (302) of the filters (3) gradually become smaller, and the clean water after filtration by the last group of filters (3) is transported to the clean water tank (1) for storage.

13. The method for operating an integrated sewage treatment device according to claim 11, characterized in that: In the step 2, a plurality of sets of filters (3) are provided, the sewage discharge tray (15) of the sewage tank (2) is simultaneously connected to the sewage outlets of the plurality of sets of filters (3) through a plurality of pipes, the plurality of sets of filters (3) are operated simultaneously, and the clean water after pressure filtration is transported to the clean water tank (1) through the pipes and the water inlet tray (16).

14. The method for operating an integrated sewage treatment device according to claim 11, characterized in that: In step three, the sludge in the sewage chamber (305) falls into the slag discharger (7), the screw conveyor rotates forward to store the sludge, and the sludge is transported in the opposite direction of the first slag discharge port (701) to store the sludge, the screw conveyor rotates reversely, and the sludge is transported in the direction of the first slag discharge port (701) to discharge the sludge, and the sludge is discharged into the slag collecting bucket (8) for slag collection.

15. The method for operating an integrated sewage treatment device according to claim 14, characterized in that: In the step three, before the slag discharger (7) discharges the material, it first starts the telescopic cylinder (12) on the lower side of the first chute (702) to pull out each chute section (11) so that the first chute (702) is extended and expanded. When the slag discharge is completed, the telescopic cylinder (12) is retracted to retract each chute section (11) so that the first chute (702) is retracted and stored.

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