CN204932986U - A kind of inflation disturbance filter - Google Patents

Abstract

The utility model relates to an air-inflated disturbance filter device, which is suitable for filtering and dehydrating fine-grained material suspension in a laboratory. The filter device includes a bracket, an operation table and a vacuum pump. The operation table is provided with a filter tank, the outside of the filter tank is provided with a compressed air inlet, the inside bottom of the filter tank is provided with an air outlet, and the bottom of the filter tank is provided with a liquid collection tank. A sealing ring and a filter disc are arranged between the liquid collecting tanks, and an air suction port connected with a vacuum pump is arranged on the liquid collecting tanks. The device is used in conjunction with an air compressor to feed air into the filter tank chamber to enhance the disturbance of the suspension, increase the gap between particles, reduce the clogging of the filter medium, accelerate the filtration speed, and reduce the moisture content of the filter cake.

Description

An inflatable disturbance filter device

technical field

The utility model relates to a filter device, in particular to an air-inflated disturbance filter device suitable for filtering fine particle materials in a laboratory.

Background technique

At present, the commonly used fine particle filtration equipment in the laboratory is a vacuum filter, which uses a vacuum pump to filter the suspension under negative pressure. During the filtration process, the filter cake stored on the surface of the filter medium gradually thickens, and the resistance of the liquid passing through the filter cake increases accordingly. Larger, the filtration speed decreases. When the filter chamber is full of filter cake or the filtration speed is too low, it is necessary to stop the filtration. Therefore, this equipment is suitable for processing suspensions with a small amount of feed and a large number of coarse particles.

The liquid must overcome the resistance through the filter cake and the filter medium, so there must be a pressure difference on both sides of the filter medium, which is the driving force to achieve filtration. Increasing the pressure difference can speed up the filtration, but the deformed particles under pressure will easily block the gap of the filter medium when the pressure difference is large, and the filtration will slow down instead.

Contents of the invention

Aiming at the above-mentioned shortcomings, an air-inflated disturbance filter device which can accelerate the dehydration speed and reduce the water content of the filter cake is provided.

In order to achieve the above purpose, the utility model inflatable disturbance filtering device includes a support, an operating table and a vacuum pump, the operating table is provided with a filter tank, the outside of the filter tank is provided with a compressed air inlet, and the inside bottom of the filter tank is provided with an air outlet. A liquid collection tank is provided at the bottom of the tank, a sealing ring and a filter disc are provided between the filter tank and the liquid collection tank, and an air suction port connected with a vacuum pump is provided on the liquid collection tank.

The filter tank is connected to the air compressor through a pipeline; the outside of the filter tank is provided with a compressed air inlet, and the inside bottom of the filter tank is provided with an air outlet; the filter tank and the filter disc are connected by a pressing device, and the filter tank A sealing ring is provided between the filter disc; a liquid collection tank is provided at the lower part of the filter disc; an air suction port connected with a vacuum pump is provided on the liquid collection tank.

Beneficial effects: In the utility model, the filter tank is connected with the air compressor through a pipeline, which effectively realizes the disturbance of the suspension, which is beneficial to the filtration of the suspension; the liquid collection tank is connected with the vacuum pump, and forms a pressure difference between the upper and lower filter discs, which is beneficial to the suspension of the suspension. Filtration; there is a sealing ring between the filter tank and the filter disc, which is beneficial to the sealing of the filter system.

Description of drawings

Figure 1: Schematic diagram of the structure of the utility model inflatable disturbance filter device

In the figure: 1—support, 2—operating table, 3—filter tank, 4—air inlet, 5—air outlet, 6—sealing ring, 7—filter disc, 8—pressing device, 9—liquid collection tank , 10—gas outlet, 11—vacuum pump.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in detail:

As shown in Figure 1, an air-inflated disturbance filter device includes a support 1, an operating table 2 and a vacuum pump 11, and is characterized in that: the operating table 2 is provided with a filter tank 3, and the outside of the filter tank 3 is provided with a compressed air inlet 4. There is an air outlet 5 at the bottom of the inner side of the filter tank, a liquid collection tank 9 is provided at the bottom of the filter tank 3, a sealing ring 6 and a filter disc 7 are provided between the filter tank 3 and the liquid collection tank 9, and a filter disc 7 is provided on the liquid collection tank 9. There is an air suction port 10 connected with a vacuum pump 11 . The filter tank 3 is connected to the air compressor through a pipeline; the outside of the filter tank 3 is provided with a compressed air inlet 4, and the inside bottom of the filter tank is provided with an air outlet 5; the filter tank 3 and the filter disc 7 are pressed The tight device 8 is connected, and a sealing ring 6 is provided between the filter tank and the filter disc; the bottom of the filter disc 7 is provided with a sump 9; the sump 9 is provided with a suction port 10 connected to a vacuum pump 11 . The suspension is filtered under the aeration disturbance and negative pressure driving force, and the filtrate is discharged through the disc filter 7 and the liquid collection tank 9 .

Working process: the suspension in the filter tank 3 is filtered under the negative pressure driving force formed by the vacuum pump 11, and the compressed gas enters from the outer air inlet 4 of the filter tank 3 through the inner bottom air outlet 5, which disturbs the suspension and increases the size of the suspension. The medium particle gap reduces the clogging of the filter medium, the liquid in the suspension quickly passes through the filter disc 7 and enters the sump 9, and the solid particles form a low-moisture filter cake on the filter medium.

Claims (2)

1. An inflatable disturbance filtering device, comprising a support, an operating table and a vacuum pump, is characterized in that: the operating table is provided with a filter tank, the bottom of the filter tank is provided with a sump, and between the filter tank and the sump There is a sealing ring and a filter disc, and an air suction port connected with a vacuum pump is arranged on the liquid collection tank. 2. An air-inflated disturbance filtering device according to claim 1, characterized in that: the filter tank is a hollow tank body, the outside of the filter tank is provided with a compressed air inlet, and the bottom of the inside of the filter tank is provided with air outlet holes, and the distribution of air outlet holes is around the bottom of the filter tank.