Changsha Zoomlian Pump Co., Ltd. 长沙中联泵业股份有限公司

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    Pneumatic submersible pump for mining type FQW
    Pneumatic submersible pump for mining type FQW
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    • Pneumatic submersible pump for mining type FQW
    • Pneumatic submersible pump for mining type FQW

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    Submersible Pump

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    Pump

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    Pneumatic submersible pump for mining type FQW

    Flow: 8-48m³/h

    Lift height: 10-50m

    Price: 0.06-5.68 ten thousand

     

    The FQW type pneumatic submersible pump for mining has the advantages of compact structure, mobility, easy assembly and disassembly, simple maintenance, small size, strong drainage capacity, large flow, and high lift height. It is suitable for drainage operations in places with the danger of gas and coal dust explosions, and can be widely used in any underground coal mine working face to transport underground water containing dirt, coal dust, sand, and other solid particles.

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    Product Description Product Specifications Why Choose Us? FAQ

    Product Description

    　　The FQW type pneumatic submersible pump for mining (originally BQF, FWQB type) is an advanced pneumatic drainage equipment developed with a centrifugal pump structure and driven by compressed air. It uses a rotor coaxially connected with the pump body, with a vertical structure and lower pump, complying with the standard: Q/JNAT001-2016. This pump has the advantages of compact structure, mobility, easy assembly and maintenance, small size, strong wastewater drainage capacity, large flow, and high lift. It is suitable for drainage operations in places with the risk of gas and coal dust explosion, and can be widely used in any underground coal mine working face to transport groundwater containing dirt, coal dust, sand, and other solid particles. The pump is safe, reliable, and effectively improves the air quality on site.

    Pneumatic Submersible Pump for Mining

    　　The body of the FQW type pneumatic submersible pump uses an efficient and energy-saving hydraulic flow channel, with a special impeller design. It has a strong wastewater drainage capacity, is not clogged by the suction of solid particles or fibers, nor is it prematurely damaged by the suction of particulate media. Its performance is good and air consumption is low.

    Product Parameters

    Meaning of the FQW Type Pneumatic Submersible Pump Model for Mining

    FQ: Pneumatic Submersible Pump for Mining

    ①: Transport medium code: w wastewater (clean water not indicated)

    ②: Nominal flow m³/h

    ③: Nominal head (m)

    ④: Type code: W: vortex type (impeller type not indicated)

    ⑤: Turbine type characteristic code: K: open (closed not indicated)

    Model example: FQW20-40/W FQW represents a pneumatic submersible pump for mining that transports wastewater; the nominal flow is 20 cubic meters per hour, the nominal head is 40 meters, the pump type is closed turbine (hydraulic wheel). This product belongs to pneumatic tools, named as pneumatic submersible pump for mining.

     

    Operating Conditions of the FQW Type Pneumatic Submersible Pump for Mining

    a) The surrounding air contains coal gas and dust;

    b) Air pressure is (0.4-0.7) MPa;

    c) Water pH is in the range of 4 to 10;

    d) The volumetric ratio of solids in the water exceeds 2%;

    e) Water density does not exceed 1.1*10³ kg/m³

    f) Working ambient temperature (5~40)℃

     

    Structural Features and Working Principle of the FQW Type Pneumatic Submersible Pump for Mining

    The pneumatic submersible pump for mining mainly consists of three parts: pump body, pneumatic motor, and flow passage part.

    1. Pump body part: divided into two chambers, upper and lower, separated by a sealing ring that isolates air and water. The sealing ring uses a spring seal and utilizes air and water pressure to allow high-pressure air and water to enter the inner walls of the upper and lower sealing rings, causing them to expand and improve the sealing effect.

    2. Pneumatic motor part: composed of rotor, turbine, upper and lower cylinders, bearings, etc. It uses compressed air as energy to drive the turbine which rotates the rotor at high speed to perform work.

    3. Flow passage part: composed of the hydraulic wheel, pump cover suction port, and pump base. The hydraulic wheel is mounted on the rotor shaft of the lower chamber of the body; compressed air is introduced through the air inlet, the rotor rotates and drives the hydraulic wheel, the water inside the hydraulic wheel is propelled by centrifugal force to the outlet channel of the body and discharged through the outlet pipe.

    Special structural points:

    The FQW/W type pneumatic submersible pump for mining (originally FWQB type) breaks the old design concept, uses pneumatic turbine transmission and compressed air as energy, overcoming the characteristics of old pneumatic pumps which had high noise, high air consumption, and low efficiency. It is widely used in mining gallery excavation, vertical shaft construction, and underground chamber drainage, with the following features:

    1. Low noise level, maintained below 40 decibels;

    2. Low air consumption, high efficiency;

    3. Small size, light weight, compact structure, easy to move;

    4. Long service life, few wear parts, easy maintenance.

     

    Performance Parameters of the FQW Type Pneumatic Submersible Pump for Mining

    Water Pump Model

    Nominal Flow
    (m³/h)

    Nominal Head
    (m)

    Air Working Pressure
    (MPa)

    Air Consumption
    (m³/min)

    Weight
    (kg)

    External Dimensions
    (mm)

    FQW20-25/W

    20

    25

    0.5

    4.5~5

    30

    347×274×462

    FQW70-30/W

    70

    30

    0.5

    4.5~5

    32

    347×274×462

    FQW20-40/W

    20

    40

    0.5

    4.5~5

    34

    329×274×495

    FQW40-20/W

    40

    20

    0.5

    4.5~5

    31

    347×274×462

    FQW25-50/W

    25

    50

    0.5

    4.5~5

    35

    329×274×495

    FQW30-18/W

    30

    18

    0.5

    4.5~5

    35

    329×274×495

    FQW50-25/W

    50

    25

    0.5

    4.5~5

    32

    347×274×462

    FQW48-12/W

    48

    12

    0.5

    4.5~5

    31

    347×274×462

    Reminder: For more parameters of the mining submersible pump, please click →【Pump Selection】 to consult

    Changsha Zhonglian Pump Industry Co., Ltd.

    Why Choose Us?

    Changsha Zhonglian Pump Industry Co., Ltd. was established in 1989, following the reform of the Changsha Water Pump Factory. It is a national high-tech comprehensive enterprise integrating design, research and development, manufacturing, and service. The company was listed on the Hunan Provincial Stock Exchange on December 31, 2019, with the abbreviated name "Zhonglian Pump Industry" and stock code: 600275HN. It is currently a key enterprise in China's centrifugal pump industry and one of the leading domestic manufacturers of multi-stage pumps, headquartered in Changsha, Hunan, a historical and cultural city in China.

    Changsha Zhonglian Pump Industry Co., Ltd.
    Changsha Zhonglian Pump Industry Co., Ltd.

    FAQ

    Q

    What products do you mainly produce?

    A

    Zoomlion Pump Industry manufactures various large industrial centrifugal pumps. The main products include: self-balancing multistage pumps, multistage centrifugal pumps, single-stage centrifugal pumps, split-case pumps, chemical pumps, submersible pumps, pipeline pumps, long-shaft pumps, condenser pumps, and more.

    Q

    Can you help me choose a model?

    A

    Of course! If the water pump model is not selected accurately, it can cause significant problems. After you take it back, it might be either too small to meet the usage requirements or too large, resulting in higher electricity and fuel costs, increasing the operating expenses.

    Q

    Why is the price quotation so slow?

    A

    Because centrifugal pumps are non-standard custom products with many models and a wide price range. Even for the same model, the price varies greatly depending on the materials and configurations used. Taking the most common pump accessory—the impeller—as an example, the price of a stainless steel impeller is several times that of a cast iron impeller. Therefore, we need to clearly confirm the relevant information to provide you with an accurate price. Normally, if you provide comprehensive information, we can quote within 5 minutes.

    Q

    What information should I provide when I need a quote?

    A

    Usually, if you want to get an accurate quote, it is recommended that you provide us with the following information: pump flow rate, head, on-site operating voltage, frequency, temperature of the conveyed liquid, pH value, solid particle content, on-site installation conditions (horizontal or vertical installation), and other related details. If you are not very familiar with these, it’s okay; our sales manager will assist you in determining them.

    Q

    Do you have centrifugal pumps in stock?

    A

    There are many models and configurations of centrifugal pumps. Except for a small number of commonly used standard models that are in stock, the vast majority of models and configurations are not stocked and are customized products. We need to first select the pump based on your site conditions such as flow rate, head, medium temperature, pH value, and installation conditions. After determining the pump model and configuration, we can then place an order with the workshop for production.

    Q

    What is your usual delivery time?

    A

    Models in stock can be shipped by the next day at the latest. Others are custom-made, and depending on the product size and specific project conditions, the delivery time is generally between 7-90 days. Please consult our sales manager for details: 0731-88632200 。

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