1. What are the washing forms of filter plates for filter presses?

1) Clear flow non washable: This form only has one intermediate feed channel, and the material enters each filter chamber through the feed channel from the feed hole on the thrust plate. The filtrate passes through the filter medium and is discharged from the outlet holes of each filter plate. It is suitable for general filtration and has the advantages of fast filtration speed and intuitive filtration effect.

2) Undercurrent non washable: This type of filter press has an outlet channel in addition to the feed channel. The filtrate from each filter plate is discharged together through this channel. This form is suitable for materials that are contaminated, toxic, volatile, and do not require washing.

3) Clear flow washable: In addition to the feeding channel, this form also has a washing liquid inlet channel. The filtering part is the same as the non washable clear flow. After filtering, perform washing operation.

4) Undercurrent washable: divided into unidirectional washing of undercurrent and bidirectional cross washing of undercurrent. This form of filter press has the same feed and washing solution as open flow washable, but the discharge method is different. The liquid from each filter plate is collected and discharged together through the outlet channel. This form is suitable for materials that are contaminated, toxic, volatile, and require washing.

2. How to choose the filter cloth for the filter press?

The selection of filter cloth is very important and plays a crucial role in the filtration process. The performance of the filter cloth directly affects the filtration effect. In order to achieve ideal filtration effect and speed, the selection should be based on the particle size, density, viscosity, chemical composition, and filtration process conditions of the material. Depending on the actual filtering requirements of the user. When cutting filter cloth, the hole spacing and aperture size must be accurate, and the aperture cannot be too small, otherwise it will block the feeding hole; The nylon buckles on the filter cloth should be arranged evenly, and the filter cloth should be cut with specialized tools such as electric soldering iron to prevent the filter cloth from coming loose.

3. What are the items included in the overall inspection of the filter press?

1) Clean the hydraulic station and electrical control cabinet, check if the oil pipes in the hydraulic station are installed correctly, if the wiring in the electrical control cabinet is correct, and if all electrical wiring is correct.

2) Clean the rack, filter plates, and check if the filter plates are arranged neatly and correctly; Check if the filter cloth is folded during installation, and if so, it needs to be flattened.

3) Check whether the configuration of pipelines and valves for feeding, washing, blowing, etc. is correct and reasonable.

4. What are the safety related issues of filter press?

1) Regularly check the working condition of various instruments, and promptly repair or replace any abnormalities found.

2) Strictly follow the relevant content of precautions, daily maintenance and upkeep, and filter press fault repair methods for operation, and prohibit all instruments from performing filtering operations under abnormal conditions.

3) The working pressure of the oil cylinder is generally around 25Mpa, and the maximum pressure for pressure testing is 31.5Mpa. However, it is strictly prohibited to work for a long time beyond 28Mpa, and it is absolutely forbidden to work beyond 31.5Mpa.

5. What are the preparations before testing the filter press?

1) Sufficient filter slurry, gas source, water source, etc. should be prepared to meet the test conditions.

2) For users who require laboratory testing and inspection of filter slurry, professional laboratory personnel and required laboratory equipment and reagents should be equipped.

3) Equipped with 1-2 maintenance workers and several operators.

4) Equipped with general tools such as small jacks, adjustable wrenches, hammers, wire pliers, screwdrivers, pipe pliers, hex wrenches, etc., as well as a small amount of auxiliary materials such as engine oil, lubricating oil, cotton yarn, etc. for use.