Discharging device of filter press

Abstract

The utility model discloses a discharge device of a filter press, which comprises a filter press body, a plurality of filter pressing plates are arranged in the filter press body, hangers are arranged on two sides of each filter pressing plate, the filter pressing plates are erected on the filter press body through the hangers, and oscillation devices for promoting filter mud cleaning are arranged on the hangers. The filter plates are connected through the hanging lugs, and the connecting parts are arranged outside the stock bin, so that foreign matters are prevented from being brought in due to friction of the filter plates; the oscillating device is used for automatically and completely unloading the filter mud; the oscillating device is arranged in the hanging lug, and only the upper surface is in contact with the hanging lug, so that the friction surface is reduced as much as possible and more metal foreign matters are avoided; the metal primers are collected in time through the hollowed-out sliding groove and the collecting groove in the bottom, and metal foreign matter is prevented from being stacked and mistakenly entering the stock bin.

Description

Technical Field

[0001] The utility model relates to a discharging device, in particular to a filter press discharging device. Background Art

[0002] During the production of battery materials, the introduction of foreign matter, especially metal ions, can seriously impact battery quality and safety. During the battery formation stage, when the voltage reaches the redox potential of the impurity ions, these introduced metal contaminants undergo a redox reaction. When the impurity metal ions accumulate to a certain level at the negative electrode, the hard, sharp edges of the deposited metal can pierce the separator, causing battery self-discharge, impacting battery quality and stability and posing a safety hazard. Therefore, strict control is implemented throughout the production process, from personnel to equipment, with strict attire and work procedures to minimize the introduction of metal contaminants. However, production equipment is a major source of metal contaminants. Metal contaminants caused by rust and wear can float into the powder material with airflow in the workshop, impacting production. Filter presses, as a filter medium, are widely used in battery material production, separating solids and liquids by applying pressure to cause dialysis. To ensure adequate solid-liquid separation, filter mud after filtration is difficult to dislodge. To minimize the amount of filter mud removed, a cylinder drives a metal block against the plate frame, which in turn vibrates the filter cloth, leading to discharge. In this setting, the metal block is easy to fall off, and metal debris will be generated when the metal block hits the plate frame. At the same time, the spring friction at the screw will also generate metal debris, greatly increasing the risk of metal foreign matter being introduced into the powder. Utility Model Content

[0003] Purpose of the utility model: The purpose of the utility model is to promote the shedding of filter mud without introducing metal foreign matter in advance, and to provide a filter press unloading device.

[0004] Technical solution: The filter press unloading device described in the utility model includes a filter press body with multiple filter press plates arranged therein. Hanging ears are provided on both sides of the filter press plates. The filter press plates are mounted on the filter press body through the hanging ears. The hanging ears are provided with an oscillation device for promoting the cleaning of filter mud.

[0005] Furthermore, an opening is provided at the bottom of the hanging ear, and the top of the oscillating device is fixed below the opening. The length, width and height of the oscillating device are respectively smaller than the length, width and height of the opening. The external placement of the oscillating device avoids the introduction of metal foreign matter into the silo. The oscillating device is smaller than the size of the opening at the bottom of the hanging ear, so that only the fixed surface is in contact with the hanging ear, reducing the risk of metal foreign matter generated by friction.

[0006] Furthermore, slide grooves are provided on both sides of the top of the filter press body to cooperate with the bottom openings of the hanging ears for moving the filter press plates. The bottom of the slide groove is hollowed out and a debris collection groove is provided below it. The hollow design and the debris collection groove can collect a small amount of foreign matter generated in time to avoid metal being introduced into the silo due to changes in the surrounding environment or vibrations of the machine itself.

[0007] Furthermore, the filter press plate and the hanging ear are formed in one piece, thereby avoiding the generation of more connecting parts, thereby avoiding the generation of metal foreign matter due to friction at the connecting parts.

[0008] Beneficial effects: Compared with the prior art, the utility model has the following advantages: 1. The filter plates are connected by hanging ears, and the connecting part is placed outside the silo to avoid foreign matter being brought in due to friction of the filter plates; 2. The vibration device realizes automatic and complete unloading of the filter mud; 3. The vibration device is placed in the hanging ear and only the upper surface is in contact with the hanging ear, which minimizes the friction surface and avoids the generation of more metal foreign matter; 4. The hollow setting of the chute and the collection groove at the bottom collect metal primers in time to avoid the accumulation of metal foreign matter and accidentally entering the silo. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural diagram of the utility model;

[0010] Figure 2 It is a structural sectional view of the utility model. DETAILED DESCRIPTION

[0011] The technical solution of the present utility model will be further described below with reference to the accompanying drawings.

[0012] like Figure 1 and 2 The illustrated filter press unloading device comprises a filter press body 4 housing multiple filter plates 1. Lugs 2 are provided on either side of the filter plates 1, forming an integral unit with the lugs 2. Slideways 5 are located on either side of the top of the filter press body 4, below the lugs 2. The filter plates 1 can slide left and right on the slideways 5. The bottom of the slideways 5 is hollowed out, and a debris collection trough is located below the slideways 5. An opening 6 is provided at the bottom of the lugs 2. The top of an oscillating device 3 is fixed below the opening at the bottom of the lugs 2. The length, width, and height of the oscillating device 3 are smaller than those of the opening 6. After filtration is complete, the oscillating device 3 is activated to vibrate the filter plates 1 up and down, rapidly removing any filter mud adhering to them. This device eliminates the introduction of metallic foreign matter during the impact process by using vibration instead of metal blocks. The filter plates 1 and lugs 2 are integrally formed, and the oscillating device is externally located, further preventing the introduction of metallic foreign matter. The hollowed-out slideways and collection trough collect any small amounts of foreign matter that is generated, further preventing their accumulation and inadvertent entry into the silo.

Claims

1. A filter press unloading device, comprising a filter press body (4) with a plurality of filter press plates (1) arranged therein; characterized in that: Hanging ears (2) are provided on both sides of the filter press plate (1), and the filter press plate (1) is mounted on the filter press body (4) through the hanging ears (2). An oscillating device (3) for promoting filter mud cleaning is provided on the hanging ears (2).

2. The filter press discharge device according to claim 1, characterized in that: The bottom of the hanging ear (2) is provided with an opening (6), and the oscillating device (3) is placed in the opening at the bottom of the hanging ear (2).

3. The filter press discharge device according to claim 2, characterized in that: The top end of the oscillating device (3) is fixed below the opening (6).

4. The filter press discharge device according to claim 3, characterized in that: The length, width and height of the oscillating device (3) are respectively smaller than the length, width and height of the opening (6).

5. The filter press discharge device according to claim 1, characterized in that: Both sides of the top of the filter press body (4) are provided with sliding grooves (5) that cooperate with the bottom openings (6) of the hanging ears (2) for moving the filter press plate (1).

6. The filter press discharge device according to claim 5, characterized in that: The bottom of the chute (5) is hollowed out.

7. The filter press discharge device according to claim 6, characterized in that: A debris collection trough is provided below the chute (5).

8. The filter press discharge device according to claim 1, characterized in that: The filter press plate (1) and the hanging ear (2) are formed in one step.

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