CN209475724U - Continuous filtering device - Google Patents

Abstract

The utility model discloses a continuous filtering device, which belongs to the technical field of filtering devices. It includes a filter container, the filter container is provided with a spiral filter layer and a slag removal device arranged on the spiral filter layer, and the slag removal device can spirally rise or fall on the thread surface of the spiral filter layer, so The spiral filter layer is used to filter the liquid to be filtered and retain the filter residue on the thread surface, and the residue removal device is used to scrape off the filter residue and take it out. The continuous filtering device of the utility model can automatically clean the filter residue while filtering, greatly prolonging the effective working time of filtering and improving the working efficiency; the utility model has the advantages of reasonable design and easy manufacture.

Description

A continuous filter

technical field

The utility model belongs to the technical field of filtering devices, and more specifically relates to a continuous filtering device.

Background technique

In chemical production, when the product has filter residue and filtrate, it is necessary to filter the product. When filtering, if there are many filter residues, the filter screen needs to be replaced frequently, which is labor-intensive and time-consuming, making continuous filtering impossible.

The Chinese patent 201310480014.3 with the publication date of December 25, 2013 discloses a continuous filtration system, including a filter bucket; a mixing lift pump and a backwashing device are arranged inside; the raw liquid input port and the filtrate output are provided on the side wall There is an exhaust valve on the top; the filter barrel is filled with filter material and is located at the bottom; the backwash device is set on the top of the filter barrel near the exhaust valve; the mixing lift pump passes through the backwash device to filter The barrel extends to the bottom and goes deep into the filter material; the backwashing device includes a separation barrel and a backwash chamber connected up and down; the separation barrel is provided with a sewage outlet and a sewage output port; the mixing lift pump includes a pump body, a compressed air pipe and a lift One end of the compressed air pipe at the bottom of the filter barrel is communicated with the pump body and the side wall of the end of the bottom of the filter barrel; the top of the compressed air pipe extends out of the filter barrel, and the top of the lift pipe is located in the separation barrel and is connected with the separation Barrel connected. This system can achieve the purpose of washing while filtering, but it needs to use high-pressure liquid to clean the filter element, and the liquid needs to be pressurized, so the cost is relatively high.

The Chinese patent 200920164576.6 published on September 1, 2010 discloses a self-cleaning screen filter, including a filter housing, water inlet pipe, water outlet pipe, sewage pipe, and valves on the water inlet pipe, water outlet pipe and sewage pipe , It is characterized in that the filter housing is provided with a filter chamber composed of at least two cylindrical filter screens, and the center of the filter chamber is provided with a hollow shaft type miscellaneous discharge pipe, a miscellaneous suction nozzle and a rotary drive mechanism for the miscellaneous discharge pipe. Although this technology cleans the filter screen by friction between the brush and the filter screen, it needs to be divided into two stages when it works, namely the filtering stage and the cleaning stage, which will cause the filter working cycle to become shorter within a certain period of time. Disadvantages, in addition to the above disadvantages, in the process of brushing the filter screen, due to the effect of water pressure, the cleaning effect is not good.

Contents of the invention

In view of the above-mentioned problems in the prior art, the purpose of this utility model is to provide a device that can realize continuous filtration without using high-pressure flushing filter screen.

In order to solve the above problems, the utility model adopts the following technical solutions.

A continuous filtering device, comprising a filter container, a spiral filter layer and a slag removal device arranged on the spiral filter layer are arranged in the filter container, and the slag removal device can be screwed on the threaded surface of the spiral filter layer Ascending or descending, the spiral filter layer is used to filter the liquid to be filtered and retain the filter residue on the thread surface, and the residue removal device is used to scrape and bring out the filter residue.

The slag removal device includes a rotating shaft, a first bracket, a driving wheel, a second bracket and a scraper, the second bracket is fixedly connected to the middle of the scraper, and the first bracket is connected to the second scraper through the rotating shaft. The two brackets are hinged, and the driving wheel is connected with the first bracket.

It also includes a plane filter layer arranged below the spiral filter layer, the lower end of the spiral filter layer is tangent to the plane filter layer, and a motor is arranged above the spiral filter layer to drive the spiral filter layer turn.

A liquid-conducting layer is arranged below the spiral filter layer.

It also includes a slag collecting device, which is detachably socketed outside the filter container and used to receive the filter slag brought out by the slag removing device.

The center of the spiral filter layer is provided with a central shaft, the motor is connected with the spiral filter layer through the central shaft, the surface of the central shaft is provided with a spiral guide groove, and one end of the rotating shaft is inserted into the in the guide groove.

The rotating shaft is an electric rotating shaft.

Vent holes are arranged above the filter container.

The lower part of the filter container is provided with a suction filter port.

It also includes a PLC, a flow meter is arranged at the outlet pipe, and the PLC is respectively connected with the motor, the rotating shaft, the driving wheel and the flow meter.

Compared with the prior art, the continuous filtering device of the utility model can automatically clean the filter residue while filtering, greatly prolonging the effective working time of filtering and improving the working efficiency; the utility model has reasonable design and is easy to manufacture.

Description of drawings

Fig. 1 is the schematic diagram of the front view of the continuous filter device of the present utility model;

Fig. 2 is the top view schematic diagram of the continuous filtering device of the present utility model;

Fig. 3 is the structural representation of the filter residue discharging device of the present utility model;

In the figure: 1. Motor; 2. Filter container; 3. Slag collection device; 4. Liquid inlet pipe; 5. Flat filter layer; 6. Spiral filter layer; 7. Liquid guide layer; 8. Guide groove; 9. Central shaft; 10, rotating shaft; 11, first bracket; 12, drive wheel; 13, second bracket; 14, scraper; 15, liquid outlet pipe; 16, vent hole; 17, flow meter;

Detailed ways

The utility model is further described below in conjunction with specific embodiments.

A kind of continuous filtration device, as shown in Figure 1, comprises cylindrical filter container 2, and upper end is provided with liquid inlet pipe 4, and bottom end is provided with liquid outlet pipe 15, and liquid outlet pipe 15 places is provided with flow meter 17; Filter container Vent 16 (seeing Fig. 2) can also be set on the top of 2, is used for the internal and external pressure when balancing filtration when filtering at normal pressure, makes filtration carry out smoothly; Filter port, used for suction filtration under reduced pressure.

The filter container 2 is provided with a spiral filter layer 6, the diameter of the spiral filter layer 6 is the same as the inner diameter of the filter container 2, and the two are seamlessly connected, so that the liquid to be filtered can only pass through the spiral filter layer 6 and the filter residue is retained in the Its threaded surface for each layer.

The spiral filter layer 6 is equipped with a slag removal device, which can spiral up or down on the threaded surface of the spiral filter layer 6, and the filter residue can be scraped off and brought out when it rises. The filter container 2 is equipped with a detachable slag collector Device 3 is used to receive the filter residue brought out by the slag removal device.

As shown in Figure 3, the slag removal device includes a rotating shaft 10, a first bracket 11, a driving wheel 12, a second bracket 13 and a scraper 14, the second bracket 13 is fixedly connected to the middle of the scraper 14, and the first bracket 11 passes through the rotating shaft 10 is hinged with the second bracket 13, and the driving wheel 12 is connected with the first bracket 11. The threaded surface of the spiral filter layer 6 has a track for the drive wheel 12 to pass through, and the rest is hollowed out, and the hollowed out part can be selected and fixed with filter paper or filter cloth of suitable specifications as required.

The top of the spiral filter layer 6 is provided with a motor 1, which is fixed by a motor bracket 18. The center of the spiral filter layer 6 is provided with a central shaft 9, which is used to drive the spiral filter layer 6 to rotate through the motor 1. The surface of the central shaft 9 is provided with a spiral One end of the rotating shaft 10 is inserted into the guide groove 8. The central shaft 9 is hollow and is used for passing through wires so that power or signals can be transmitted to the slag removal device from the outside.

The bottom of the spiral filter layer 6 is also fixedly provided with a plane filter layer 5, and the lower end of the spiral filter layer 6 is in contact with the plane filter layer 5 and is tangent. 6, the slag removal device can scrape off the filter residue on the flat filter layer 5.

A liquid-conducting layer 7 can be added below the spiral filter layer 6, and the liquid-conducting layer 7 is also helical, located 1-2 cm below the spiral filter layer 6, so that the filtrate filtered through each layer of thread can directly pass through the liquid-conducting layer 7 diversion and flow down, to improve the efficiency of filtration.

The rotating shaft 10 is an electric rotating shaft, which can be rotated as required to adjust the distance between the scraper 14 and the thread surface (that is, the thickness of the retained filter residue), and can even be rotated to more than 180°, so that the running direction of the scraper 14 and the driving wheel 12 is the same or opposite .

This continuous filtering device also can be provided with PLC, and PLC is connected with motor 1, rotating shaft 10, drive wheel 12, flow meter 17 respectively, can adjust the work of drive wheel 12 according to the data of flow meter 17.

When preparing for work, connect the slag collecting device 3 to the upper part of the filter container 2, so that the top of the slag collecting device 3 is flush with or slightly lower than the top of the filter container 2; turn on the power, and the PLC controls the driving wheel 12, so that the entire slag removing device Move to the bottom of the spiral filter layer 6.

In the working state, the solution flows from the liquid inlet pipe 4 to the filter paper or filter cloth laid on the spiral filter layer 6. After filtering through the filter paper or filter cloth, the filter residue remains on the filter paper or filter cloth, and the filtrate penetrates the filter layer to reach the liquid-conducting layer. 7. The liquid guide layer 7 guides the filtrate directly to the flat filter layer 5 for re-filtration, and the filtrate after two times of filtration flows out of the filter container 2 through the liquid outlet pipe 15 .

The flow value measured by the flow meter 17 is fed back to the PLC. When there is too much filter residue on the surface of the filter layer, the filtration speed is obviously slowed down. Attached to the surface of the filter layer or at a certain distance from the surface of the filter layer, the PLC first controls the rotation of the motor 1: the filter residue on the flat filter layer 5 is collected on the spiral filter layer 6 through the slag removal device, and then the driving wheel 12 is controlled to rotate to drive the scraper 14 Ascending along the spiral filter layer 6, the filter residue is collected by the scraper 14 and finally falls into the slag collection device 3. After the slag collection is completed, the PLC controls the rotation of the rotating shaft 10 to lift the scraper 14, and the residue removal device moves to the spiral filter layer 6 The bottom end is ready for use.

Claims (8)

1. a continuous filtering device, comprising filter container (2), is characterized in that, is provided with spiral filter layer (6) and is arranged on the deslagging on described spiral filter layer (6) in described filter container (2) device, the slag removal device can spiral up or down on the threaded surface of the spiral filter layer (6), the spiral filter layer (6) is used to filter the liquid to be filtered and retain the filter residue on the threaded surface, the The deslagging device is used to scrape off the filter residue and take it out. 2. The continuous filtering device according to claim 1, characterized in that, the slag removal device comprises a rotating shaft (10), a first support (11), a driving wheel (12), a second support (13) and a scraper (14), the second bracket (13) is fixedly connected to the middle part of the scraper (14), and the first bracket (11) is hinged to the second bracket (13) through the rotating shaft (10) , the driving wheel (12) is connected to the first bracket (11). 3. continuous filtering device according to claim 2, is characterized in that, also comprises the plane filter layer (5) that is arranged on described spiral filter layer (6) below, and the lower end of described spiral filter layer (6) and described The plane filter layer (5) is tangent to each other, and a motor (1) is arranged above the spiral filter layer (6) to drive the spiral filter layer (6) to rotate. 4. The continuous filtering device according to claim 1 or 3, characterized in that, a liquid-conducting layer (7) is provided below the spiral filter layer (6). 5. The continuous filtering device according to claim 1, characterized in that, it also includes a slag collecting device (3), and the slag collecting device (3) is detachably socketed outside the filter container (2) for use in To receive the filter residue brought out by the slag removal device. 6. The continuous filtering device according to claim 3, characterized in that, the center of the spiral filter layer (6) is provided with a central shaft (9), and the motor (1) is connected with the central shaft (9) The spiral filter layer (6) is connected, the surface of the central shaft (9) is provided with a spiral guide groove (8), and one end of the rotating shaft (10) is inserted into the guide groove (8) . 7. The continuous filtering device according to claim 1, characterized in that a ventilation hole (16) is arranged above the filtering container (2). 8. The continuous filtering device according to claim 1, characterized in that, the bottom of the filtering container (2) is provided with a suction filter port.