Unidirectional filter cloth bending and expanding cake unloading device

Abstract

A one-way filter cloth curving and expanding cake unloading device is characterized in that the lower ends of curving and expanding supports are installed on the two sides of a filter plate, filter cloth frame rods penetrate through the top ends of the curving and expanding supports on the two sides, the top ends of the curving and expanding supports are hinged with the filter cloth frame rods as shafts, the upper portions of filter cloth on the two faces of a compartment type filter plate are hung on the filter cloth frame rods, and filter cloth on the two faces of a membrane filter plate is arranged on the membrane filter plate; the curved support disclosed by the utility model is simpler in structure, the filter cloth hung on the curved support is reduced by half, the production cost is reduced, the dislocation of the liquid outlet holes in the filter cloth is reduced, the failure rate is low, and the filtering efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of filter presses in the solid-liquid separation industry, and more particularly relates to a one-way filter cloth bending cake unloading device. Background Art

[0002] The filter press is an important solid-liquid separation equipment. The filter plate is closed to form a closed filter chamber. The filtered material enters the various chambers of the filter plate through the pressure of the feed pump. The solid particles in the material are trapped by the filter medium filter cloth, forming a filter cake in the filter chamber. The filtrate is discharged through the drainage holes of the filter plate. The filter plate is pulled apart by the plate puller, and the filter cake falls off the surface of the filter cloth to complete the cake unloading. In the filtration industry, due to the different properties of materials, especially in some chemical industries where the material viscosity is relatively high, the filter cake sticks to the filter cloth and is not easy to separate and fall off. It is necessary to use tools to manually peel the filter cake from the surface of the filter cloth, which has low production efficiency and the filter cloth is easily damaged.

[0003] The applicant's utility model patent "Curved Filter Cloth Device for Filter Press" (authorization announcement number CN201482272U) discloses a curved filter cloth device for filter press, in which the curved bracket is installed on the upper part of both sides of the filter plate, and the upper part of the filter cloth on both sides of the filter plate is hung on the filter cloth rack rod; when the filter plate is pulled open, the curved device automatically opens, the filter cloth changes its vertical angle, and the filter cake stuck on the filter plate automatically falls off; the upper end of the curved bracket of the prior art is connected by a pin shaft and the filter cloth rack rod is installed by a spring, and the failure rate is relatively high; in addition, the filter cloth on both sides of the filter plate are hung on the filter cloth rack rod, and after long-term use, the liquid outlet holes of the filter cloth are severely misaligned, affecting the filtration efficiency.

[0004] It is necessary to install brackets on both sides of the filter plate, and the lower end of the flexural arm is connected to the bracket through a pin, and the upper end of the flexural arm is connected through a pin and the filter cloth hanging rod is installed through a spring; however, after a period of use, the pin of the flexural arm wears and causes the filter cloth to shake, and the liquid outlet hole of the filter cloth and the liquid outlet of the filter plate are misaligned, affecting normal filtration; and there will be vibration and displacement when the filter plate is opened and closed, which will cause damage to the flexural arm and the failure rate is high. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the above-mentioned background technology and provide a one-way filter cloth bending cake unloading device.

[0006] The one-way filter cloth bending and cake unloading device is characterized in that the lower end of the bending bracket is installed on both sides of the filter plate, the filter cloth frame rod passes through the top of the bending bracket on both sides, the top of the bending bracket is hinged with the filter cloth frame rod as the axis, the upper part of the filter cloth on both sides of the chamber filter plate is hung on the filter cloth frame rod, and the filter cloth on both sides of the diaphragm filter plate is arranged on the diaphragm filter plate.

[0007] The utility model discloses a one-way filter cloth flexure cake unloading device, which is applied to a diaphragm filter press. Filter cloths on both sides of a diaphragm filter plate are arranged on the diaphragm filter plate. When the diaphragm filter plate is subjected to diaphragm pressing, the diaphragm filter plate expands, and the filter cakes stuck on the filter cloths on both sides of the diaphragm filter plate will fall off from the filter cloths. The filter cloths on both sides of a chamber filter plate are arranged on filter cloth support rods. When the filter plate is opened, the flexure support automatically opens, the filter cloth changes its vertical angle, and the filter cakes stuck on the filter cloth automatically fall off.

[0008] The utility model has a simpler structure of the varicose bracket, and the filter cloth hung on the varicose bracket is reduced by half, thereby reducing the production cost. Moreover, the misalignment of the liquid outlet holes on the filter cloth is reduced, the failure rate is low, and the filtering efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the one-way filter cloth bending cake unloading device of the utility model.

[0010] Figure 2 It is a side schematic diagram of the utility model.

[0011] In the figure: 1. Chamber filter plate; 2. Diaphragm filter plate; 3. Varicose support; 4. Filter cloth support rod; 5. Filter cloth. DETAILED DESCRIPTION

[0012] In order to have a further understanding and recognition of the structural features and the effects achieved by the present invention, a preferred embodiment and accompanying drawings are used for detailed description as follows:

[0013] like Figure 1 , Figure 2 As shown, the lower 3 ends of the varicose bracket are installed on both sides of the filter plate, the filter cloth frame rod 4 passes through the top of the varicose bracket 3 on both sides, the top of the varicose bracket 3 is hinged with the filter cloth frame rod 4 as the axis, the upper part of the filter cloth 5 on both sides of the chamber filter plate 1 is hung on the filter cloth frame rod 4, and the filter cloth on both sides of the diaphragm filter plate 2 is arranged on the diaphragm filter plate 2.

[0014] The utility model discloses a one-way filter cloth flexure cake unloading device, which is applied to a diaphragm filter press. Filter cloths 5 on both sides of a diaphragm filter plate 2 are arranged on the diaphragm filter plate 2. When the diaphragm filter plate 2 is subjected to diaphragm pressing, the diaphragm filter plate 2 expands, and the filter cakes stuck on the filter cloths 5 on both sides of the diaphragm filter plate 2 will fall off from the filter cloths 5. The filter cloths 5 on both sides of a chamber filter plate 1 are arranged on a filter cloth support rod 4. When the filter plate is opened, the flexure support 3 is automatically opened, the filter cloth 5 changes its vertical angle, and the filter cakes stuck on the filter cloth 5 automatically fall off.

Claims

1. One-way filter cloth bending cake unloading device, characterized in that: The lower end of the varicose bracket is installed on both sides of the filter plate, the filter cloth frame rod passes through the top of the varicose bracket on both sides, the top of the varicose bracket is hinged with the filter cloth frame rod as the axis, the upper part of the filter cloth on both sides of the chamber filter plate is hung on the filter cloth frame rod, and the filter cloth on both sides of the diaphragm filter plate is arranged on the diaphragm filter plate.

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