CN101972565A

CN101972565A - Self-cleaning cloth-media filter

Info

Publication number: CN101972565A
Application number: CN201010217143XA
Authority: CN
Inventors: 石亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-06-27
Filing date: 2010-06-27
Publication date: 2011-02-16

Abstract

The invention discloses a self-cleaning cloth-media filter, which belongs to the technical field of environmental-protection wastewater treatment. The self-cleaning cloth-media filter comprises a filter body, a center pipe, filter discs, a water inlet pipe, a water outlet pipe, a cleaning water outlet pipe and a liquid level meter. The running process of the self-cleaning cloth-media filter is that: before running, a water inlet electric valve and a water outlet electric valve are opened and a cleaning water outlet electric valve is closed; wastewater enters the center pipe through the water inlet pipe and a water flowing-through opening, and then enters the filter discs through water through holes of the center pipe and the filter discs; when the wastewater flows out of the filter discs, filter cloth intercepts suspended matters in the wastewater onto the surface of the filter cloth, and the treated water flows into the filter body and flows out from the water outlet pipe; in cleaning, the water outlet electric valve is closed to realize the rise of a water level in the filter body, the water inlet electric valve is closed and simultaneously the cleaning water outlet electric valve is opened; the water flows into the filter discs to clean the suspended matters in fibers; and the cleaning water outlet electric valve is closed, and the water inlet electric valve and the water outlet electric valve are simultaneously opened to make the equipment enter a normal running state.

Description

Self-cleaning type filter cloth filter tank

Technical field

The present invention relates to a kind of filter cloth filter tank, belong to the technical field of sewage of environmental protection, refer in particular to a kind of filter cloth filter tank that can self-cleaning.

Background technology

Along with water in recent years pollutes the increasingly serious of situation; country has strengthened the management that water is polluted; higher level, strict more environment protectment protection have been taked; improve the advanced treatment of wastewater ability; require sewage treatment plant to carry mark transformation; newly-built sewage treatment plant reaches one-level A discharge standard without exception, goes out aqueous suspension (SS) discharge standard improvement value 10mg/L.

In addition, mark is carried by existing sewage treatment plant, and to transform the most real problem generally face be that the usable land area is limited, also will consider to reduce investment outlay, and corresponding technology coupling shortens problems such as construction period as far as possible.Press for that development process efficient is higher on existing Separation of Solid and Liquid basis, floor space is littler, with the clarification filtration technology and the relevant device of existing sewage treatment process coupling.

The filter cloth filter tank is a kind of novel advanced treatment of wastewater equipment, be equivalent to the combination of filtering ponds and sedimentation basin, compare with traditional technology, equipment takes up an area of little, running is simple to operate, and is easy to control, and it is better to filter effluent quality, the equipment that is higher than traditional handicraft is applicable to the engineering of water treatment of various scales.Name as the applicant's application is called " fibre turntable filter " application number: 200920043914.5 filter, adopt and filter disc outsourcing filter cloth, the filter cloth aperture is little, can hold back particle diameter and be several microns molecule, so effluent quality and stable water outlet all are better than traditional filter tank.Sewage flows in the filtering ponds, rely on the gravity effect, effluent stream forms clear water after filter cloth is held back suspension, clear water is discharged by delivery port or is entered the subsequent treatment stage, suspension in the running in the sewage can form the suspension accumulation layer on the fiber of filter cloth, the loss of flood peak increases, the filter disc capacity of outlet water descends, cause that the filtering ponds middle water level rises, when water level reaches predetermined water level, begin to carry out that back suction is inhaled or flushing, filter cloth filtering ponds of the prior art are inhaled or during flushing at back suction, back suction is inhaled or flusher maintains static, and rotating axle drives and filters the disc rotation.

Its weak point has:

Electricity consumption drives the motor of water pump and center of rotation pipe when 1, cleaning, and consume electric power has increased moving capable cost;

2, each filter disc of equipment all will be provided with a pair of cleaning device, cleans filter cloth with water pump during cleaning, has caused the manufacturing cost of equipment higher, has increased the construction cost of applying unit;

3, equipment component is more, complex manufacturing;

4, the working procedure complexity of equipment, operation easier is big.

5, equipment component is more, increases the maintenance cost of equipment.

Summary of the invention

The present invention provides a kind of self-cleaning type filter cloth filter tank for solving the deficiencies in the prior art, this equipment modern design, and compact conformation does not use cleaning devices such as flushing water pump, and sewage enters filter disc from central tube in running; The operation electricity consumption is few, cleans not electricity consumption, and the device fabrication cost is little, and device fabrication technology is simple; Operation is simple.

The technical scheme that the present invention overcomes the above problems is: self-cleaning type filter cloth filter tank, at Chi Tizhong the filter cloth filter disc is set, and it is characterized in that: comprise the pond body, central tube, filter disc, water inlet pipe cleans outlet pipe, outlet pipe, outlet pass, delivery port, liquid level gauge; The pond body is a rectangle, and a middle side part of pond body or bottom are provided with outlet pass, relative opposite side bottom is provided with delivery port; Central tube is fixedlyed connected with filter disc, has the central tube limbers on the tube wall, is communicated with filter disc limbers on the filter disc, and an end of central tube is connected with outlet pass; Filter disc is provided with one at least, is installed in the body of pond; Outlet pass one end is connected with central tube, and the other end is connected with the cleaning outlet pipe with water inlet pipe respectively, and water inlet pipe is provided with into water motor-driven valve and intake pressure instrumentation, cleans outlet pipe and is provided with cleaning water outlet motor-driven valve; Outlet pipe is connected with delivery port, and outlet pipe is provided with water outlet motor-driven valve and discharge pressure instrumentation; Liquid level gauge is arranged in the body of pond.

In the above-mentioned self-cleaning type filter cloth filter tank, described filter disc is cuboid or disc, filter disc has the filter disc limbers to be connected with the central tube limbers of central tube with the central tube junction, water can be communicated with, the inboard, two sides of filter disc is respectively arranged with inner frame, the arranged outside of inner frame has outer skeleton, and the centre of inner frame and outer skeleton is provided with fiber filter cloth, and filter cloth has the one side of fiber inside.

In the above-mentioned self-cleaning type filter cloth filter tank, described central tube is arranged in the body of pond, and central tube one end is connected with outlet pass, and corresponding other end sealing has the central tube limbers, with the corresponding setting in the filter disc limbers on the filter disc on the tube wall.

In the above-mentioned self-cleaning type filter cloth filter tank, described filter cloth, constitute by base fabric and the fiber that is fixed on the base fabric, fiber adopts dacron thread or acrylics filament or polypropylene fibre silk, and fiber cloth 1/3rd is a long wool, and 2/3rds is short flannel, long wool length is 12～20mm, short flannel length is 5～8mm, and long wool is a bending, and short flannel is a vertical.

In the above-mentioned self-cleaning type filter cloth filter tank, described liquid level gauge, be arranged in the body of pond, high liquid level, middle liquid level and low liquid level control point are set, high liquid level control point is arranged on Chi Tiwu/four height, middle liquid level control point is arranged on Chi Tiwu/three the height, and low liquid level control point is arranged on the height of pond body 1/2nd.

Self-cleaning type filter cloth of the present invention filter tank, its beneficial effect is:

Self-cleaning type filter cloth of the present invention filter tank, this equipment modern design, compact conformation, sewage enters filter disc from central tube in running, filters the back through filter cloth and flows out from delivery port; Flushing water pump and cleaning device are not set, and power-equipment is few, and the operation electricity consumption is few, not electricity consumption during cleaning; The device fabrication cost is little; Device fabrication technology is simple; Equipment adopts motor-driven valve, liquid level gauge and pressure detecting instrument to cooperate operation and autocontrol method operation, and operation is simple.

The processed in units expense is lower than fibre turntable filter chamber and other advanced treating technology, is applicable to the advanced treating of large-scale municipal wastewater engineering by it.

Description of drawings

In conjunction with the accompanying drawings and embodiments self-cleaning type filter cloth of the present invention filter tank is described further.

Fig. 1 is the structural representation in self-cleaning type filter cloth of the present invention filter tank.

Fig. 2 is the floor map in self-cleaning type filter cloth of the present invention filter tank.

Among the figure 1 is the pond body, the 2nd, and outlet pass, the 3rd, delivery port, the 4th, central tube, the 5th, filter disc, the 6th, water inlet pipe, the 7th, outlet pipe, the 8th, clean outlet pipe, the 9th, advance the water motor-driven valve, the 10th, the water outlet motor-driven valve, the 11st, clean the water outlet motor-driven valve, the 12nd, the intake pressure instrumentation, the 13rd, the discharge pressure instrumentation, the 14th, liquid level gauge, the 15th, drive motors, 16 central tube limbers.

The specific embodiment

Describe structure of the present invention and characteristics in detail below in conjunction with accompanying drawing:

Embodiment one

Self-cleaning type filter cloth filter tank, its structure comprise pond body 1 as depicted in figs. 1 and 2, central tube 4, and filter disc 5, water inlet pipe 6 cleans outlet pipe 8, outlet pipe 7, outlet pass 2, delivery port 3, liquid level gauge 14; The pond body is a rectangle, and a side lower part of pond body is provided with outlet pass, relative opposite side bottom is provided with delivery port; Central tube 4 is fixedlyed connected with filter disc, has central tube limbers 16 on the tube wall, and an end of central tube is connected with outlet pass 2; Filter disc 5 is provided with one at least, is installed in the pond body 1; Outlet pass 2 one ends are connected with central tube 4, and the other end is connected with cleaning outlet pipe 8 with water inlet pipe 6 respectively, and water inlet pipe 6 is provided with into water motor-driven valve 9 and intake pressure instrumentation 12, clean outlet pipe 8 and are provided with cleaning water outlet motor-driven valve 11; Outlet pipe 7 is connected with delivery port 3, and outlet pipe 7 is provided with water outlet motor-driven valve 10 and discharge pressure instrumentation 13; Liquid level gauge 14 is arranged in the pond body 1.

In the above-mentioned self-cleaning type filter cloth filter tank, described filter disc 5 is a cuboid, filter disc has the filter disc limbers to be connected with the central tube limbers 16 of central tube 4 with the central tube junction, water can be communicated with, the inboard, two sides of filter disc 5 is respectively arranged with inner frame, the arranged outside of inner frame has outer skeleton, and the centre of inner frame and outer skeleton is provided with fiber filter cloth, and filter cloth has the one side of fiber inside.

In the above-mentioned self-cleaning type filter cloth filter tank, described central tube 4 is arranged in the pond body 1, and central tube 4 one ends are connected with outlet pass 2, and corresponding other end sealing has central tube limbers 16, with the corresponding setting in the filter disc limbers on the filter disc 5 on the tube wall.

In the above-mentioned self-cleaning type filter cloth filter tank, described liquid level gauge 14, be arranged in the pond body 1, high liquid level, middle liquid level and low liquid level control point are set, high liquid level control point is arranged on Chi Tiwu/four height, middle liquid level control point is arranged on Chi Tiwu/three the height, and low liquid level control point is arranged on the height of pond body 1/2nd.

Principle of the present invention and running are:

The self-cleaning type filter cloth filter tank motor-driven valve 9 of will intaking earlier before operation is opened, water outlet motor-driven valve 10 is opened, cleaning water outlet motor-driven valve 11 closes, sewage at first enters central tube 4 by water inlet pipe 6 by outlet pass 2, enter filter disc 5 inside by central tube limbers 16 and filter disc limbers again, pressure in the filter disc 5 is greater than the pressure of filter disc outside at this moment, because the fiber of filter cloth one side inwardly is provided with, filament on the filter disc 5 both sides filter clothes is attached on the base fabric, when sewage flows to outside the filter disc in filter disc 5, filter cloth is trapped in the suspension in the sewage on the surface of filter cloth, water after the processing flows in the pond body 1, flow into outlet pipe 7 by delivery port 3 again, flow out from outlet pipe 7 at last, after operation a period of time, suspension on filter cloth increases, disposal ability descends, water outlet reduces, water inlet pipe 6 internal pressures increase, pressure in the outlet pipe 7 reduces, when the pressure in the water inlet pipe 6 is 2 times of outlet pipe 7 internal pressures, close water outlet motor-driven valve 10, make water level rising in the pond body 1, when water level rise to pond body 1 height 4/5ths the time, when being high liquid level control point, close into water motor-driven valve 9, open simultaneously and clean water outlet motor-driven valve 11, pressure outside the filter disc 5 is greater than the pressure in the filter disc at this moment, and water flows into outside filter disc in the filter disc, and the fiber of filter cloth becomes rarefaction from the state that is attached to base fabric in this process, suspension in the fiber is cleaned totally, when the water level in the pond body 1 drops to middle liquid level or low liquid level, finish cleaning process, close and clean water outlet motor-driven valve 11, open into water motor-driven valve 9 and water outlet motor-driven valve 10 simultaneously, equipment enters normal operating condition.

Embodiment two

Under principle of uniformity, self-cleaning type filter cloth of the present invention filter tank also can adopt rotating disc type to install, the self-cleaning type filter cloth filter tank that rotating disc type is installed, as shown in Figure 3 and Figure 4, central tube 4 is arranged on pond body 1 middle part, filter disc 5 is a disc, the vertical placement, fixedly connected with central tube in the middle part of filter disc, central tube 4 and 2 rotatable connections of outlet pass, body 1 top in pond is provided with drive motors 15, opens drive motors 15 and can make central tube 4 and filter disc 5 rotations, and the rotation of filter disc 5 helps the observation and the adjustment of equipment running status.The other parts of equipment are identical with embodiment one.

The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims

1. self-cleaning type filter cloth filter tank is provided with the filter cloth filter disc at Chi Tizhong, it is characterized in that: its structure comprises pond body (1), central tube (4), filter disc (5), water inlet pipe (6) cleans outlet pipe (8), outlet pipe (7), outlet pass (2), delivery port (3), liquid level gauge (14); Pond body (1) is a rectangle, and a middle side part of pond body or bottom are provided with outlet pass (2), relative opposite side bottom is provided with delivery port (3); Central tube (4) is fixedlyed connected with filter disc (5), has central tube limbers (16) on the tube wall, and an end of central tube (4) is connected with outlet pass (2); Filter disc (5) is provided with one at least, is installed in the pond body (1); Outlet pass (2) one ends are connected with central tube (4), the other end is connected with cleaning outlet pipe (8) with water inlet pipe (6) respectively, water inlet pipe (6) is provided with into water motor-driven valve (9) and intake pressure instrumentation (12), cleans outlet pipe (8) and is provided with cleaning water outlet motor-driven valve (11); Outlet pipe (7) is connected with delivery port (3), and outlet pipe (7) is provided with water outlet motor-driven valve (10) and discharge pressure instrumentation (13); Liquid level gauge (14) is arranged in the pond body (1).

2. self-cleaning type filter cloth according to claim 1 filter tank, it is characterized in that: described filter disc (5) is cuboid or disc, filter disc (5) has the filter disc limbers to be connected with the central tube limbers (16) of central tube (4) with central tube (4) junction, water can be communicated with, the inboard, two sides of filter disc (5) is respectively arranged with inner frame, the arranged outside of inner frame has outer skeleton, and the centre of inner frame and outer skeleton is provided with fiber filter cloth, and filter cloth has the one side of fiber inside.

3. self-cleaning type filter cloth according to claim 1 filter tank, it is characterized in that: described central tube (4), be arranged in the pond body (1), central tube (4) one ends are connected with outlet pass (2), corresponding other end sealing, have central tube limbers (16) on the tube wall, with the corresponding setting in the filter disc limbers on the filter disc (5).

4. self-cleaning type filter cloth according to claim 1 filter tank, it is characterized in that: described filter cloth, constitute by base fabric and the fiber that is fixed on the base fabric, fiber adopts dacron thread or acrylics filament or polypropylene fibre silk, and fiber cloth 1/3rd is a long wool, and 2/3rds is short flannel, long wool length is 12～20mm, short flannel length is 5～8mm, and long wool is a bending, and short flannel is a vertical.

5. self-cleaning type filter cloth according to claim 1 filter tank, it is characterized in that: described liquid level gauge (14), be arranged in the pond body (1), high liquid level, middle liquid level and low liquid level control point are set, high liquid level control point is arranged on Chi Tiwu/four height, middle liquid level control point is arranged on Chi Tiwu/three the height, and low liquid level control point is arranged on the height of pond body 1/2nd.