CN219050441U

CN219050441U - Pneumatic quicksand filtering system

Info

Publication number: CN219050441U
Application number: CN202223365212.9U
Authority: CN
Inventors: 王忠强; 袁绍宇; 吴忠
Original assignee: Koovine Environmental Protection Technology Co ltd
Current assignee: Koovine Environmental Protection Technology Co ltd
Priority date: 2022-12-15
Filing date: 2022-12-15
Publication date: 2023-05-23
Anticipated expiration: 2032-12-15

Abstract

The utility model discloses a pneumatic quicksand filtering system which comprises a plurality of filters, a high-level water tank, a dosing device and an air compressor which are connected in parallel, wherein the bottoms of the filters are provided with a water inlet ring pipe and a back flushing air inlet pipe, and the side surfaces of the filters are provided with water outlets; the dosing device is connected to a high-level water tank, the high-level water tank is connected to each water inlet ring pipe through a water diversion pipe, the air compressor is connected to a compressed air tank, the compressed air pipe is connected to a back flushing air inlet pipe of each filter through an air control device, and the water outlet is connected to a water outlet pipe through a pipeline. The utility model has simple structure, can independently operate a single unit, can also operate a plurality of units in parallel, stores raw water and backwash water through different position areas, realizes synchronous filtration and backwash, and has convenient operation of the whole system, high filtration efficiency and low energy consumption.

Description

Pneumatic quicksand filtering system

Technical Field

The utility model relates to the technical field of filter systems, in particular to a pneumatic quicksand filter system.

Background

The filter in various forms mainly has the function of removing suspended matters or gelatinous impurities in water in a filter tank or a container by utilizing a filter material, particularly can effectively remove tiny particles and bacteria which cannot be removed by a precipitation technology, and has a certain removing effect on BOD, COD and the like. The filtering equipment mainly comprises a common rapid filter, a siphon filter, a gravity valveless filter, a pressure filter, a micro-filter and the like according to the structural form; according to different types of filter materials, the filter materials are divided into: sand filters, multi-media filters, activated carbon filters, fiber bundle filters, and the like. The sand filter is divided into a sand flow filter, a shallow sand filter and a quartz sand pressure filter.

The shallow sand filter and the quartz sand pressure filter in the same field realize automation in filtration and backwashing, but the filtration work cannot be normally realized in the backwashing process. Thus, the defects of large equipment investment and high operation cost exist under the condition of treating the same water volume scale.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a pneumatic sand flowing filtering system which is simple in structure, can independently operate a single pneumatic sand flowing filtering system or can operate a plurality of pneumatic sand flowing filtering systems in parallel, stores raw water and backwash water through different position areas, realizes synchronous filtration and backwash, and is convenient in overall system operation, high in filtering efficiency and low in energy consumption.

In order to solve the technical problems, the utility model provides a pneumatic quicksand filtering system which comprises a plurality of filters, a high-level water tank, a dosing device and an air compressor which are connected in parallel, wherein the bottom of each filter is provided with a water inlet ring pipe and a back flushing air inlet pipe, and the side surface of each filter is provided with a water outlet; the dosing device is connected to a high-level water tank, the high-level water tank is connected to each water inlet ring pipe through a water diversion pipe, the air compressor is connected to a compressed air tank, the compressed air tank is connected to a back flushing air inlet pipe of each filter through an air control device, and the water outlet is connected into a water outlet pipe through a pipeline.

Further, the filter comprises a cone and a sand washer, a sand collecting box is arranged at the bottom of the cone, a sand lifting device is arranged on the sand collecting box, a sand lifting pipe is arranged between the sand lifting device and the sand washer, and a drain pipe is arranged at the bottom of the sand washer.

Further, the bottom of the filter is provided with supporting legs.

Further, a water outlet baffle plate is arranged at the water outlet.

Further, a water level regulator is arranged at the top of the filter.

Further, a water inlet pipe is arranged on one side of the high-level water tank, and a water pump is arranged on the water inlet pipe.

Further, a sand distribution cone is arranged above the cone, and a water distribution baffle plate is arranged on the sand distribution cone.

The utility model has the beneficial effects that: the device can independently operate or operate in parallel, and raw water and backwash water are stored through different position areas. The raw water of the filter material is shunted to a water inlet ring pipe at the lower part of the filter through a pipeline by a high-level water tank arranged at the top of the filter tank, the water inlet ring pipe is shunted to a peripheral inverted cone water distribution area inside the filter in three ways, the water distribution area and the lower part of the whole cone bottom are filled with the filter material, and the raw water uniformly and reversely flows through a filter bed, so that impurities are continuously intercepted and adsorbed, the filtered raw water is discharged from a water outlet pipe at the top of the filter, and the filtering process is completed. The method is characterized in that the intercepting polluted filter material flows to the bottom sand collecting box through gaps around the inner sand distributing cone, a sand outlet is arranged on one side of the sand collecting box, a back flushing air inlet pipe is arranged on the other side of the sand collecting box, a stainless steel air distributing ring pipe is arranged in the sand distributing box, the sand outlet is connected with a sand lifting device, the sand lifting device is used for mixing water, sand and air, rubbing and cleaning the water, separating the air, enabling the sand water after separating the air to flow down to the lower part, entering the multistage labyrinth triangle ring slope in the sand lifting device, spreading the sand water to form a character shape, slowly descending, removing dirt on the surface of the sand in a stage, forming a liquid level negative difference by utilizing the filtered water level and a drain pipe drain regulating weir of the sand lifting device, so that part of filtered water is discharged from the inner bottom of the sand lifting device through the drain pipe, achieving the purpose of automatic back cleaning, and the cleaned sand is evenly distributed to the center of the filter bed again, and enters the circulating and cleaning process.

Drawings

Fig. 1 is a schematic view of the overall structure of the present utility model.

Fig. 2 is a schematic view of the filter structure of the present utility model.

The reference numerals in the figures illustrate: 1. an air compressor; 2. a high level water tank; 3. a dosing device; 4. a filter; 41. a water inlet ring pipe; 42. a water outlet; 43. a cone; 44. a sand washer; 45. collecting a sand box; 46. a sand lifter; 47. a sand lifting pipe; 48. a blow-down pipe; 49. a support leg; 410. a water outlet baffle; 411. a water level regulator; 412. a sand distribution cone; 413. a water distribution baffle plate; 5. a water diversion pipe; 6. a compressed air tank; 7. an air control device; 8. back flushing the air inlet pipe; 9. a water outlet pipe; 10. a water inlet pipe; 11. and (3) a water pump.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1 to 2, an embodiment of a pneumatic quicksand filtering system of the present utility model includes a plurality of filters 4 connected in parallel, a high-level water tank 2, a dosing device 3 and an air compressor 1, a water inlet ring pipe 41 and a back flushing air inlet pipe 8 are arranged at the bottom of the filters 4, and water outlets 42 are arranged at the sides of the filters 4; the dosing device 3 is connected to the head tank 2, the head tank 2 is connected to the respective water inlet loops 41 via the water dividing pipe 5, the air compressor 1 is connected to the compressed air tank 6, which is connected to the backwash air inlet pipe 8 of the respective filter 4 via the air control device 7, and the water outlet 42 is connected into the water outlet pipe 9 via a pipe.

A water inlet pipe 10 is arranged on one side of the high-level water tank 2, and a water pump 11 is arranged on the water inlet pipe 10;

the filter 4 comprises a cone 43 and a sand washer 44, a sand collecting box 45 is arranged at the bottom of the cone 43, a sand extracting device 46 is arranged on the sand collecting box 45, a sand extracting pipe 47 is arranged between the sand extracting device 46 and the sand washer 44, a drain pipe 48 is arranged at the bottom of the sand washer 44, a supporting leg 49 is arranged at the bottom of the filter 4, a water outlet partition 410 is arranged at the water outlet 42, a water level regulator 411 is arranged at the top of the filter 4, a sand distributing cone 41243 is arranged above the bottom cone, and a water distributing partition 413 is arranged on the sand distributing cone 41243.

The device can independently operate a single filter 4 or can operate a plurality of filters in parallel, and raw water and backwash water are stored through different position areas. The raw water of the filter material is shunted to a water inlet ring pipe 41 at the lower part of the filter 4 by a high-level water tank 2 arranged at the top of the filter tank through a pipeline, the water inlet ring pipe 41 is shunted to a peripheral inverted cone water distribution area inside the filter 4, the water distribution area and the lower part of the whole cone bottom are filled with the filter material, and the raw water uniformly and upwards flows back through the filter bed, so that impurities are continuously intercepted and adsorbed, the filtered raw water is discharged from a water outlet pipe 9 at the top of the filter 4, and the filtering process is completed. The filter material with interception pollution flows to the bottom sand collecting box 45 through gaps on the periphery of an inner sand distributing cone 41243, a sand outlet is arranged on one side of the sand collecting box 45, a back flushing air inlet pipe 8 is arranged on the other side of the sand collecting box 45, a stainless steel air distributing ring pipe is arranged in the sand collecting box, the sand outlet is connected with a sand lifter 46, the sand lifter 46 is connected to the sand washer 44 on the top of the filter 4 through the sand lifter 47, water, sand and air are mixed and vigorously rubbed and cleaned to separate air, sand water after air separation flows to the lower part downstream, the sand water enters the multistage labyrinth triangular annular slope in the sand washer 44 and spreads out to form a character shape, the dirt on the surface of the sand is removed in a stage, the removed dirt forms a liquid level negative difference with the sewage discharging pipe 48 of the regulating weir liquid level of the sand washer 44 after filtering, so that part of filtered clean water is discharged from the bottom in the sand washer 44 through the sewage discharging pipe 48, the purpose of automatic back cleaning is achieved, the cleaned sand is evenly distributed to the center of the filter bed again, and the circulation and re-cleaning process is carried out.

Filter media requirements for the bottom of filter 4: the material, hardness and shape of the filter material directly affect the filtering effect and the service life, and the sand used for different water medium filters 4 is different, and the filter material with high hardness, less edges and corners and no sulfur, magnetism and iron is selected. The materials are generally refined quartz sand and silicon carbide, the effective diameter is generally 0.9mm, the uniformity coefficient is 1.4, oily wastewater or raw water which is easy to adhere is selected, the uniformity coefficient is 1.4, and the air quantity required by a sand pump is increased along with the increase of the particle size due to the difference of the particle size;

requirements for the air control device 7: the air purifying tank, control box and built-in elements constitute the air purifying tank, the purifying tank is filled with air compressor or public system air for purifying and buffering, the air is fed into the main inlet of the air controlling tank via pipeline and valve, the air pipe of the main inlet is provided with pressure gauge and adjustable rotor flowmeter, the air is connected to sand extracting device 46 via the flowmeter, the air line connected to sand extracting device 46 is pu, the temperature resistance is-40-80 deg.c, the maximum pressure resistance is 1.2MPa, the pressure regulating value and sand extracting amount can be regulated according to the condition of site, the air pressure is regulated to 5-7kg/cm2, and the compressed air can not contain oil and water.

Yarn washer: the sand washing device consists of an inner cylinder and an outer cylinder, wherein the inner side of the outer cylinder is provided with a wear-resistant Wang Xisha nonmetallic ring, the outer side of the inner cylinder is provided with a sand washing ring, the outer cylinder is formed by alternately installing an empty ring and a sand washing ring on the inner side of stainless steel, the sand washing ring is made of polyurethane, the outer cylinder of the sand washing device is arranged at the upper end of a washing groove, and the inner cylinder is arranged inside the outer cylinder.

The lower end of the inner cylinder is supported by the lower guide ring, the upper end of the inner cylinder is supported by the upper guide ring, the air separator is arranged on the upper guide ring, the sand washing ring of the outer cylinder is intersected with the sand washing ring of the inner cylinder, so that a labyrinth channel is formed between the inner cylinder and the outer cylinder, polluted sand is lifted to the air separator from the sand collecting hopper to separate air, then enters a labyrinth or a cleaning area to be slowly cleaned and lowered, so that dirt on the surface of the sand is removed, and part of water washing water washes away the dirt by the water level difference.

The above-described embodiments are merely preferred embodiments for fully explaining the present utility model, and the scope of the present utility model is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present utility model, and are intended to be within the scope of the present utility model. The protection scope of the utility model is subject to the claims.

Claims

1. The pneumatic sand flowing filtering system is characterized by comprising a plurality of filters, a high-level water tank, a dosing device and an air compressor which are connected in parallel, wherein the bottoms of the filters are provided with a water inlet ring pipe and a back flushing air inlet pipe, and the side surfaces of the filters are provided with water outlets;

the dosing device is connected to a high-level water tank, the high-level water tank is connected to each water inlet ring pipe through a water diversion pipe, the air compressor is connected to a compressed air tank, the compressed air tank is connected to a back flushing air inlet pipe of each filter through an air control device, and the water outlet is connected into a water outlet pipe through a pipeline.

2. The pneumatic sand flow filter system of claim 1 wherein a water inlet pipe is provided on one side of the head tank and a water pump is provided on the water inlet pipe.

3. The pneumatic quicksand filtration system of claim 1, wherein the filter comprises a cone and a sand washer, a sand collecting box is arranged at the bottom of the cone, a sand lifting device is arranged on the sand collecting box, a sand lifting pipe is arranged between the sand lifting device and the sand washer, and a drain pipe is arranged at the bottom of the sand washer.

4. The pneumatic quicksand filtration system of claim 1, wherein the filter bottom is provided with legs.

5. The pneumatic quicksand filtration system of claim 1, wherein a water outlet baffle is provided at the water outlet.

6. The pneumatic quicksand filtration system of claim 1, wherein the filter top is provided with a water level regulator.

7. The pneumatic quicksand filtration system of claim 3, wherein a sand distribution cone is arranged above the cone, and a water distribution baffle is arranged on the sand distribution cone.