A filter aid feeding device and an automatic feeding type pre-coat filtration system

Abstract

The utility model discloses a kind of filter aid feeding device and automatic feeding type pre-coating filtration system, belong to particulate or powder filtering equipment field.A kind of filter aid feeding device, including receiving hopper;The feeding device further includes: ration feeding mechanism, located in the receiving hopper below;Shutoff valve is connected with the ration feeding mechanism;Shutoff valve and ration feeding mechanism between being equipped with blanking tube;Liquid storage tank is divided into cylinder part and cone, the powder dispersing mechanism is equipped in the cylinder part, flange is equipped on the liquid storage tank, and the flange is connected with the shutoff valve;The first liquid inlet is equipped between the powder dispersing mechanism and the flange;Liquid outlet is equipped below the liquid storage tank.The utility model utilizes filter aid feeding device ration automatic feeding, feeding and liquid inlet stagger time, avoid powder absorption water vapor knot group.And immediately after dosing to liquid storage tank, make liquid flow and filter aid powder fully mix, directly introduce mixed liquid of mixing evenly into filter tank and carry out filtration, process is simpler, compact structure.

Claims

1. A filter aid feeding device, comprising a receiving hopper; characterized in that, The feeding device further includes: A quantitative feeding mechanism is located below the receiving hopper; A shut-off valve is connected to the quantitative feeding mechanism; a discharge pipe is provided between the shut-off valve and the quantitative feeding mechanism; The liquid storage tank is divided into a cylindrical part and a conical part. A powder dispersion mechanism is provided inside the cylindrical part. A flange is provided on the top of the liquid storage tank, and the flange is connected to the shut-off valve. A first liquid inlet is provided between the powder dispersion mechanism and the flange. A liquid outlet is provided at the bottom of the liquid storage tank. The first liquid inlet is tangentially positioned to the cylindrical portion.

2. The filter aid feeding device according to claim 1, characterized in that, The powder dispersion mechanism is a filter screen, and the pore size of the filter screen is larger than the particle size of the filter aid powder.

3. The filter aid feeding device according to claim 2, characterized in that, The cylindrical section is provided with a fixed cylinder to support the filter screen. The fixed cylinder extends out of the liquid storage tank. The fixed cylinder is provided with a flange, which is connected to the shut-off valve.

4. The filter aid feeding device according to claim 1, characterized in that, The liquid storage tank is equipped with an air intake, which is connected to a negative pressure generator; the liquid storage tank is also equipped with a negative pressure gauge.

5. The filter aid feeding device according to claim 1, characterized in that, The powder dispersion mechanism includes: A hollow frame is provided on the cylindrical portion; Rotating blades are evenly distributed and connected to the central column, which is rotatably connected to the hollow frame; The guide vanes, in a spiral shape, are positioned below the hollow frame; The first liquid inlet is located opposite to the rotating blade; the first liquid inlet and the rotating blade have a certain tilt angle.

6. The filter aid feeding device according to claim 1, characterized in that, The feeding pipe has a split structure, and a receiving pipe is also provided below the feeding pipe.

7. The filter aid feeding device according to claim 1, characterized in that, The feed pipe is connected to the air pipe; the liquid storage tank is connected to the air inlet pipe.

8. The filter aid feeding device according to claim 1, characterized in that, A first inlet valve is provided on the pipe where the first inlet is located, and a third inlet valve is connected to the pipe where the outlet is located.

9. An automatic feeding pre-coating filtration system, comprising a filter tank, characterized in that, The pre-coated filtration system includes a filter aid feeding device according to any one of claims 1 to 8, wherein the filter aid feeding device is connected to the filter tank, and a centrifugal pump and a third inlet valve are connected between the filter aid feeding device and the filter tank; the filter aid feeding device includes a first inlet, the filter tank is provided with an outlet pipe, and the outlet pipe is connected to a purified liquid tank; the first inlet is connected to the purified liquid tank through a first inlet valve; the first inlet is connected to a raw water tank, and a second inlet valve is connected between the raw water tank and the first inlet.

10. An automatic feeding pre-coating filter system according to claim 9, characterized in that, The filter aid feeding device includes a storage tank, which is connected to a blower; the blower rotates forward to draw air into the storage tank, and rotates in reverse to allow air to enter the storage tank and discharge the liquid.

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