阅读说明：本技术 一种超大流量移动介质过滤装置 (Ultra-large flow mobile medium filtering device ) 是由 沈志梁 于 2020-03-30 设计创作，主要内容包括：本发明一种超大流量移动介质过滤装置,由罐体、颗粒滤料、滤料清洗分离器。进出水布水器、自动控制箱等组成,该过滤器可以单台处理流量达300-500吨/小时,是现有石英砂过滤器的3-10倍,占地只有同规模的1/5,并且过滤精度高,具有在线不停机清洗滤料和离线清洗滤料功能,并且清洗时的废水量只有产水量的1％-2％。(The invention relates to an ultra-large flow mobile medium filtering device which comprises a tank body, a particle filtering material and a filtering material cleaning separator. The filter can process flow rate of 500 tons/hour which is 3-10 times of that of the prior quartz sand filter, occupies only 1/5 with the same scale, has high filtering precision, has the functions of cleaning filter materials on line without stopping and cleaning filter materials off line, and has the wastewater amount during cleaning only 1-2% of water yield.)

1. The invention relates to an ultra-large flow mobile medium filter device which comprises a filter material, a tank body 5, a water inlet 2, a water inlet collecting pipe 3, a water inlet distribution pipe 4, a filter material cleaning separator 6, a three-way valve 7, a sewage discharge pipe 8, a conveying pipe 9, a water outlet collecting pipe 10, a water outlet 11, a water outlet distribution pipe 12, a flow guide cover 13, an ejector 14, an ejector water inlet pipe 15, an ejector material conveying pipe 16 and a discharge opening 1. The method is characterized in that: the lower part of the tank body 5 is a conical bottom and is provided with a flow guide cover 13, and the top part is connected with a filter material cleaning separator 6; the water inlet collecting pipe 3, the water inlet distributing pipe 4, the water outlet collecting pipe 10 and the water outlet distributing pipe 12 are completely covered by the filter material in the middle of the tank body; one end of an ejector feed pipe 16 is connected with the bottom plate of the tank body 5, and the other end is connected with an ejector 14; one end of the conveying pipe 9 is connected with the ejector 14, and the other end is connected with the filter material cleaning separator 6; one end of the injector water inlet pipe 15 is connected with the injector 14, and the other end is connected with the water outlet 11.

2. The ultra-large flow mobile medium filtering device is characterized by the combination of a filtering material cleaning separator 6, a three-way control valve 7, a blow-off pipe 8 and a conveying pipe 19. The filter material cleaning separator 8 is provided with an upper storage chamber and a lower storage chamber which are arranged in series from top to bottom, a discharge port at the bottom of each storage chamber is provided with a check valve, and a discharge port of the lower storage chamber is communicated with the tank body 5. The filter material cleaning separator 8 has 6 connectors: the first joint is arranged at the top, an inlet port of the mixed liquid of the filter material, the suspended matters and the liquid is connected with the conveying pipe 9, the second joint is also connected with the blow-off pipe 8 at the top, the third, the fourth and the fifth joints are respectively connected with three ports of the three-way valve 7, one end of the third joint is communicated with the upper part of the upper storage chamber, the other end of the fourth joint is communicated with the lower part of the upper storage chamber or the upper part of the lower storage chamber, and the other end of the fifth joint is communicated with the lower part of the lower storage chamber during storage; the outlet of the lower storage chamber is communicated with the tank body 5.

3. The ultra-large flow mobile medium filter device is characterized in that the positions of the water inlet distribution pipe 4 and the water outlet distribution pipe 12 are all parallel to the axis of the tank body 5, and are arranged in a crossed manner by taking the shaft of the tank body 5 as the center and equidistance is arranged in the circumferential direction, thus not only: one layer is a cylinder formed by a plurality of water inlet distribution pipes 4, the other layer is a cylinder formed by a plurality of water outlet distribution pipes 12, and the arrangement is repeated, wherein the number of the layers can be 2 to multiple, 5 layers are provided, and the distance between the layers is 300 mm; one end of each water inlet distribution pipe 4 is connected with the water inlet 2 through the water inlet collecting pipe 3, and the other end is in a closed state; one end of each water outlet distribution pipe 12 is connected with the water outlet 11 through the water outlet collecting pipe 10, and the other end is in a closed state; the aperture of the pipe surface of the water outlet and distribution pipe 12 is smaller than the particle diameter of the particle filter material. The cylindrical jacket is composed of a cylindrical water inlet and distribution pipe group and a cylindrical water outlet pipe group, and can also be a cylindrical jacket composed of two layers of interlayers with screens.

4. The super-large flow mobile medium filter device is characterized in that the distance between a cylinder formed by 4 groups of water inlet and water distribution pipes and an adjacent cylinder formed by the water outlet and water distribution pipes 12 is related to the particle diameter of a filter material, and the distance is 1000-2000 times of the particle diameter of the filter material.

5. The ultra-large flow mobile medium filter device is characterized in that the filter material is in a particle state, the particle diameter of the particle filter material is not limited, the material quality of the particle filter material is not limited, and the specific gravity of the particle filter material is greater than that of liquid to be filtered; the granular filter material is quartz sand with the diameter of 0.15-0.1 mm.

6. The ultra-large flow mobile medium filter device is characterized in that filter materials are arranged, and the distance from the top of each filter material to the upper ends of a water inlet water distributor 4 and a water outlet water distributor 12 is larger than 1/2 of the distance between the adjacent water inlet water distributors and the adjacent water outlet water distributors.

7. The ultra-large flow mobile medium filtering device is characterized in that the pressure of inlet water is kept at a certain pressure, and the pressure of a water outlet is ensured to be not lower than 0.1 Mp.

8. The invention has the beneficial effects that: the medium filter device can be ensured to realize large-flow operation, the treatment flow is improved by 3-10 times compared with the existing filter under the same floor area, the filter material can be cleaned on line without stopping and off line, and the amount of backwashing wastewater during cleaning is only 1% -2% of the produced water.

Technical Field

The invention belongs to the field of water treatment, relates to an ultra-large flow mobile medium filtering device, is widely applied to devices for removing suspended matters in wastewater treatment, water purification and liquid treatment, and can solve the problems that the existing medium filter has small treatment flow, large occupied area, needs to be shut down for backwashing and generates a large amount of backwashing water.

Background

The medium filter is widely used in the industries of water treatment, chemical engineering, energy and the like. However, most of the existing medium filters are of tank body structures, and have the problems of small treatment flow, large occupied area, necessary halt during backwashing and generation of a large amount of backwashing wastewater. At present, the most commonly used quartz sand filter generally adopts an upper water inlet and lower water outlet mode, namely: the liquid to be filtered flows downwards from the top layer of the filter layer to the filter layer, suspended matters are intercepted in the filter layer, after the operation is carried out for a certain time, the machine needs to be stopped to carry out back washing regeneration on the filter material, and the process is repeated. The size of the water treatment amount of the quartz sand filter is related to the sectional area of the tank body, the treatment flow of the equipment can be increased only by increasing the diameter of the equipment, the diameter of the equipment is limited by traffic regulations and the like, and the diameter of the equipment cannot exceed 3 meters at present, so that the maximum treatment flow of a single quartz sand filter cannot exceed 100 tons/hour, the occupied area is large, the back washing needs to be stopped, a large amount of back washing wastewater can be generated, and the wastewater amount is 5-10% of the water yield.

The ultra-large flow mobile medium filtering device can improve the treatment flow by 3-10 times under the condition of the same floor area, greatly reduce the floor area of equipment, reduce the on-site basic investment, and is not required to be shut down when the filtering material is cleaned, and the backwashing wastewater only has 1% -2% of the water yield. The invention can well solve the problems of the existing medium filter and is particularly suitable for large-scale water treatment places.

Disclosure of Invention

The invention aims to solve the technical problems that in the prior art, the single device of the medium filter has small processing flow, and a plurality of devices are required to be combined to meet the requirements, so that the device occupies large area, the site capital construction investment is increased, the site device is complex to install and the like; and during backwashing, the filtering equipment needs to be stopped, a large amount of backwashing wastewater needs to be treated, and the treatment cost of the large amount of backwashing wastewater is increased. The utility model provides a super large flow removes media filter equipment, this filter equipment can be fine the problem of solving current media filter.

The technical scheme of the invention for realizing the aim is realized as follows:

the invention relates to an ultra-large flow mobile medium filter device which comprises a filter material, a tank body 5, a water inlet 2, a water inlet collecting pipe 3, a water inlet distribution pipe 4, a filter material cleaning separator 6, a three-way valve 7, a sewage discharge pipe 8, a conveying pipe 9, a water outlet collecting pipe 10, a water outlet 11, a water outlet distribution pipe 12, a flow guide cover 13, an ejector 14, an ejector water inlet pipe 15, an ejector material conveying pipe 16 and a discharge opening 1. The method is characterized in that: the lower part of the tank body 5 is a conical bottom and is provided with a flow guide cover 13, and the top part is connected with a filter material cleaning separator 6; the water inlet collecting pipe 3, the water inlet distributing pipe 4, the water outlet collecting pipe 10 and the water outlet distributing pipe 12 are completely covered by the filter material in the middle of the tank body; one end of an ejector feed pipe 16 is connected with the bottom plate of the tank body 5, and the other end is connected with an ejector 14; one end of the conveying pipe 9 is connected with the ejector 14, and the other end is connected with the filter material cleaning separator 6; one end of the injector water inlet pipe 15 is connected with the injector 14, and the other end is connected with the water outlet 11.

The ultra-large flow mobile medium filtering device is characterized by the combination of a filtering material cleaning separator 6, a three-way control valve 7, a blow-off pipe 8 and a conveying pipe 19. The filter material cleaning separator 8 is provided with an upper storage chamber and a lower storage chamber which are arranged in series from top to bottom, a discharge port at the bottom of each storage chamber is provided with a check valve, and a discharge port of the lower storage chamber is communicated with the tank body 5. The filter material cleaning separator 8 has 6 connectors: the first joint is arranged at the top, an inlet port of the mixed liquid of the filter material, the suspended matters and the liquid is connected with the conveying pipe 9, the second joint is also connected with the blow-off pipe 8 at the top, the third, the fourth and the fifth joints are respectively connected with three ports of the three-way valve 7, one end of the third joint is communicated with the upper part of the upper storage chamber, the other end of the fourth joint is communicated with the lower part of the upper storage chamber or the upper part of the lower storage chamber, and the other end of the fifth joint is communicated with the lower part of the lower storage chamber during storage; the outlet of the lower storage chamber is communicated with the tank body 5.

The ultra-large flow mobile medium filter device is characterized in that the positions of the water inlet distribution pipe 4 and the water outlet distribution pipe 12 are all parallel to the axis of the tank body 5, and are arranged in a crossed manner by taking the shaft of the tank body 5 as the center and equidistance is arranged in the circumferential direction, thus not only: one layer is a cylinder formed by a plurality of water inlet distribution pipes 4, the other layer is a cylinder formed by a plurality of water outlet distribution pipes 12, and the arrangement is repeated, wherein the number of the layers can be 2 to multiple, 5 layers are provided, and the distance between the layers is 300 mm; one end of each water inlet distribution pipe 4 is connected with the water inlet 2 through the water inlet collecting pipe 3, and the other end is in a closed state; one end of each water outlet distribution pipe 12 is connected with the water outlet 11 through the water outlet collecting pipe 10, and the other end is in a closed state; the aperture of the pipe surface of the water outlet and distribution pipe 12 is smaller than the particle diameter of the particle filter material. The cylindrical jacket is composed of a cylindrical water inlet and distribution pipe group and a cylindrical water outlet pipe group, and can also be a cylindrical jacket composed of two layers of interlayers with screens.

The super-large flow mobile medium filter device is characterized in that the distance between a cylinder formed by 4 groups of water inlet and water distribution pipes and an adjacent cylinder formed by the water outlet and water distribution pipes 12 is related to the particle diameter of a filter material, and the distance is 1000-2000 times of the particle diameter of the filter material.

The ultra-large flow mobile medium filter device is characterized in that the filter material is in a particle state, the particle diameter of the particle filter material is not limited, the material quality of the particle filter material is not limited, and the specific gravity of the particle filter material is greater than that of liquid to be filtered; the granular filter material is quartz sand with the diameter of 0.15-0.1 mm.

The ultra-large flow mobile medium filter device is characterized in that filter materials are arranged, and the distance from the top of each filter material to the upper ends of a water inlet water distributor 4 and a water outlet water distributor 12 is larger than 1/2 of the distance between the adjacent water inlet water distributors and the adjacent water outlet water distributors.

The ultra-large flow mobile medium filtering device is characterized in that the taper included angle of the tapered bottom at the lower part of the tank body 5 is 90-60 degrees. The taper included angle of the guide cone 13 is 90-60 degrees.

The ultra-large flow mobile medium filtering device is characterized in that the pressure of inlet water is kept at a certain pressure, and the pressure of a water outlet is ensured to be not lower than 0.1 Mp.

The ultra-large flow mobile medium filtering device is characterized by being capable of realizing on-line cleaning of granular filter materials and also capable of realizing off-line cleaning in a shutdown mode.

The invention has the beneficial effects that: the medium filter device can be ensured to realize large-flow operation, the treatment flow can be improved by 3-10 times under the same floor area of the existing filter, the filter material can be cleaned on line without stopping, the filter material can be cleaned off line, and a large amount of backwashing wastewater is not generated during cleaning.

Drawings

Fig. 1 is a schematic diagram of the general structure of a super-large flow rate moving medium filtering device according to the present invention.

As shown in figure 1, the filter material cleaning device comprises a filter material, a tank body 5, a water inlet 2, a water inlet collecting pipe 3, a water inlet distributing pipe 4, a filter material cleaning separator 6, a three-way valve 7, a sewage discharge pipe 8, a conveying pipe 9, a water outlet collecting pipe 10, a water outlet 11, a water outlet distributing pipe 12, a flow guide cover 13, an ejector 14, an ejector water inlet pipe 15, an ejector material conveying pipe 16 and a discharge opening 1.

The liquid to be treated enters the tank 5 from the water inlet 2, the water inlet collecting pipe 3 and the water inlet distributing pipe 4, passes through the particle filter material layer, and flows out of the tank 5 from the water outlet distributor 11, the water outlet collecting pipe 12 and the water outlet 11, thus completing the liquid filtering process.

The cleaning of the particle filter material has two cleaning modes of on-line cleaning and off-line cleaning. Off-line cleaning: after the filtering device works for a period of time, because the suspended matters intercepted by the filtering material are more and more, the pressure of an inlet and an outlet of the filtering device is increased, the normal work of the filtering device is influenced, and at the moment, the filtering material layer needs to be cleaned. The off-line cleaning process comprises the following steps: closing the outlet valve of the water outlet 11, keeping the pressure in the tank body not lower than 0.1Mp, opening the control valve on the sewage discharge pipe 8 and the control valve on the water inlet pipe 15 of the ejector, pushing the particle filter material containing suspended matters into the material conveying pipe 16 of the ejector by water flow, mixing the filtered water from the ejector 14 and the water inlet pipe 15 of the ejector, then entering the filter material cleaning separator 6 through the conveying pipe 9, in the filter material cleaning separator 6, the granular filter material is separated from the cleaning fluid and the suspended matters, the granular filter material firstly falls into an upper storage chamber of the filter material cleaning separator 6 under the action of self weight, the liquid containing the suspended matters is discharged through a discharge pipe 8, when the granular filter material in the upper storage chamber is accumulated to a certain amount, the three-way control valve 7 is adjusted to enable the upper storage chamber to be communicated with the lower storage chamber and the lower storage chamber to be disconnected with the upper space of the tank body 5, so that the granular filter material in the upper storage chamber falls into the lower storage chamber under the action of gravity; after a certain time, the three-way control valve 7 is adjusted again to communicate the lower storage chamber with the upper space of the tank 5, so that the upper storage chamber is disconnected from the lower storage chamber, at the moment, the check valve of the upper storage chamber is closed under the action of pressure, the check valve of the lower storage chamber is opened under the action of gravity, the granular filter material falls to the upper part of the tank 5 by self weight, the granular filter material moves from top to bottom in the tank 5 and is filled between the water inlet distribution pipe 4 and the water outlet distribution pipe 12, the granular filter material continues to move downwards and is guided to the bottom of the tank 5 by the guide cover 13 to enter the ejector feed pipe 16 again, and thus the cleaning cycle of the granular filter material is completed.

An online cleaning process: keeping the pressure of the water outlet 11 not lower than 0.1Mp, opening a blowdown valve of the blowdown pipe 8 and a control valve on the injector water inlet pipe 15 for a long time, and setting the three-way valve 7 to be automatic time control, so that the online self-cleaning of the ultra-large filter can be realized.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

Fig. 1 is a general structural diagram of a super-large flow moving medium filtering device. The filter material cleaning device comprises filter materials, a tank body 5, a water inlet 2, a water inlet collecting pipe 3, a water inlet distribution pipe 4, a filter material cleaning separator 6, a three-way valve 7, a sewage discharge pipe 8, a conveying pipe 9, a water outlet collecting pipe 10, a water outlet 11, a water outlet distribution pipe 12, a flow guide cover 13, an ejector 14, an ejector water inlet pipe 15, an ejector conveying pipe 16 and a discharge opening 1.

The working process of the ultra-large flow mobile medium filtering device comprises the following steps

The filtration process is as follows: the liquid to be treated enters the tank 5 from the water inlet 2, the water inlet collecting pipe 3 and the water inlet distributing pipe 4, passes through the particle filter material layer, and flows out of the tank 5 from the water outlet distributor 11, the water outlet collecting pipe 12 and the water outlet 11, thus completing the liquid filtering process.

An off-line cleaning process: closing the outlet valve of the water outlet 11, keeping the pressure in the tank body not lower than 0.1Mp, opening the control valve on the sewage discharge pipe 8 and the control valve on the water inlet pipe 15 of the ejector, pushing the particle filter material containing suspended matters into the material conveying pipe 16 of the ejector by water flow, mixing the filtered water from the ejector 14 and the water inlet pipe 15 of the ejector, then entering the filter material cleaning separator 6 through the conveying pipe 9, in the filter material cleaning separator 6, the granular filter material is separated from the cleaning fluid and the suspended matters, the granular filter material firstly falls into an upper storage chamber of the filter material cleaning separator 6 under the action of self weight, the liquid containing the suspended matters is discharged through a discharge pipe 8, when the granular filter material in the upper storage chamber is accumulated to a certain amount, the three-way control valve 7 is adjusted to enable the upper storage chamber to be communicated with the lower storage chamber and the lower storage chamber to be disconnected with the upper space of the tank body 5, so that the granular filter material in the upper storage chamber falls into the lower storage chamber under the action of gravity; after a certain time, the three-way control valve 7 is adjusted again to communicate the lower storage chamber with the upper space of the tank 5, so that the upper storage chamber is disconnected from the lower storage chamber, at the moment, the check valve of the upper storage chamber is closed under the action of pressure, the check valve of the lower storage chamber is opened under the action of gravity, the granular filter material falls to the upper part of the tank 5 by self weight, the granular filter material moves from top to bottom in the tank 5 and is filled between the water inlet distribution pipe 4 and the water outlet distribution pipe 12, the granular filter material continues to move downwards and is guided to the bottom of the tank 5 by the guide cover 13 to enter the ejector feed pipe 16 again, and thus the cleaning cycle of the granular filter material is completed.

An online cleaning process: when the filter works normally, the pressure of the water outlet 11 is kept to be not lower than 0.1Mp, the drain valve of the drain pipe 8 and the control valve on the water inlet pipe 15 of the ejector are opened for a long time, the control of the three-way valve 7 is set to be time control, and the online self-cleaning of the ultra-large filter can be realized.