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I. Overview:

1. Product model and name:

ZFGLZD (2000 / 31.5 / 25 / F) automatic backwash recoil recovery high pressure filtration station

2. The main purpose and usages:

The product is mainly used for hydraulic props in coal mines. It is used as the first-stage filter at the exit of pumping stations to protect the safety of brackets and hydraulic coal mining equipment. Filtering accuracy of 25um, (according to the user can choose between 25-40um).

3. product features

The product is used for coal mine holder emulsion filtration, in order to more reliably ensure product performance, the main valve body are used automatic opening and closing function; product of high and low voltage sealing reliability, long service life, coal mine hydraulic system is an important part . With program control to achieve automatic backwash, a large amount of filtration, high precision, high performance recoil, high-flow sewage and sewage filtration and recycling characteristics.

Second, the structural characteristics and working principle

1. Structure: (with photos)

The filter station will be alternating valves and filters together as one, is by the base, the integrated valve seat, alternating valve, drain valve, recoil valve, check valve, accumulator, two 1000L high pressure filter, rotating base , Recycling filters, transmission and explosion-proof motor and flameproof explosion-proof electric PLC program automatic control system and other components of the filter station. Into the liquid inlet with DN50SS interface and with DN31.5D socket for customer selection. The inlet and outlet are equipped with a pressure gauge to detect the hydraulic pressure difference; the accumulator is equipped with a pressure gauge to check the accumulator pressure.

When the filter needs to be replaced, the movable plate can ratchet wrench of the swivel bracket 65 is rotated integrally easy removal filter; DN19 using a high-pressure discharge valve quick connector is connected to the filter cartridge, outlet hose with DN19 and JK19 rapid sewage collecting pipe after connecting the filter into the recovery; recycling water filtering accuracy of the filter cartridge 120 mesh, and the housing cap is connected to the fastening clamp is dedicated fast, easy to quickly disassemble and clean the filter, and out of the line are connected to the hose JK19 emulsion tank .

2. Function and working principle:

The filter station has the following functions: 1) high-precision filtering; 2) timing or pressure display preset program controlled by the PLC to achieve online recoil; 3) liquid waste recycling.

How it works:

1)    The emulsion coming out from the emulsion pump directly enters the alternating valve inlet of the filter station, enters the filter through the high-pressure check valve, automatically opens the one-way valve in the integrated valve seat after filtering through the filter cartridge, Liquid pipeline, from the liquid outlet into the face through the pipeline to the hydraulic support.

2)    The use of liquid pressure into the system of pressure as a source of pressure through the recoil valve into the filter for high-pressure washing filter, the filter to obtain a clean cleaning effect, the sewage through the sewage valve into the recovery filter, filtered back to the liquid Box, to achieve secondary recycling and access to good environmental effects, recoil time, interval time has been set by the electrical control device can also be set according to user requirements.

This filter station is an essential and essential equipment for obtaining pure liquid in coal