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Having 26 series -312 varieties - over 1000 pump models
Focused on water pump research and development manufacturing for 36 years
Free training for operation and maintenance personnel/free installation guidance/free provision of installation drawings
BQ Series High-Pressure Explosion-Proof Submersible Mine Pump
Traffic: 100–1500 m³/h
Head: 85-720m
Power: 355-4500kw
Efficiency: 47.9–72.3%
Price: 6,900–598,500
The BQ series high-pressure, explosion-proof submersible mine pump consists of a double-suction or single-suction multistage centrifugal pump combined with a water-filled, high-voltage three-phase asynchronous motor, forming a compact unit. This large-scale mine drainage equipment is designed to operate entirely submerged in water and is primarily used for draining water from central pump rooms in coal mines, as well as for emergency drainage following water inundation disasters or for restoring mine operations after flooding.
Hotline:
Submersible pump
Horizontal Single-Stage Fire Pump
Product Parameters
Composition and Significance of Model Designations for the BQ Series High-Pressure, Forced-Discharge, Explosion-Proof Submersible Mine Pumps
Model designations are represented by uppercase Chinese Pinyin letters indicating the model type and its characteristics, while Arabic numerals denote the parameters.
a) Model of the electric pump
B Q ①-②/③-④/⑤-S
B: Explosion-proof for mining use
Q: Submersible pump
①: Rated flow rate, with the unit being cubic meters per hour (m³/h)
②: Rated head, unit: (m)
③: Number of impeller stages
④: Rated output power of the motor, in kilowatts (kW)
⑤: Installation type. Vertical—do not specify; horizontal—use “W”.
S: Water-filled motor
b) Electric motor-driven submersible pump for mining applications
Y B Q-①/②-S ③
③: Rated voltage, in volts (V)
S: Water-filled electric motor high-voltage submersible pump for mining
②: Number of motor poles
①: Rated output power of the motor, in kilowatts (kW)
Q: Submersible electric motor
B: Explosion-proof for mining use
Y: Asynchronous motor
Main Applications and Operating Conditions of the BQ Series High-Pressure, Forced-Discharge, Explosion-Proof Submersible Mine Pump
Main uses:
This series of high-pressure, heavy-duty submersible pumps for mining applications is designed and manufactured in compliance with GB3836.1-2010 for use in explosive environments.
Part 1: General Requirements for Equipment and Explosive Atmospheres GB3836.2-2010;
Part 2: The standard for equipment protected by an explosion-proof enclosure “d” specifies that the explosion-proof type is flameproof, with the explosion-proof marking ExdI. This equipment is suitable for normal production drainage in mines containing explosive gas environments such as methane or coal dust, as well as for emergency rescue and disaster relief operations, and for drainage operations aimed at restoring mining activities in flooded mines.
This high-pressure, heavy-duty mining pump is suitable for all types of mines, including coal mines, iron ore mines, non-ferrous metal mines, and non-metallic mines. It is used for routine drainage during mining operations, emergency rescue drainage in the event of sudden water bursts, drainage for restoring flooded mines, and comprehensive water management in mining areas. It can be used in open-pit mines, vertical shafts, inclined shafts, and underground sumps. Electric pumps must obtain both the National Coal Mine Safety Mark and the Explosion-Proof Certification before they can be installed and put into operation.
A. Normal drainage during the construction of shafts and inclined shafts in coal mines.
B. Mine shafts without water reservoirs drain water from the bottom of the shaft.
C. Drainage of mining faces.
D. Drainage of the loose coal bunker at the bottom of the shaft.
E. Clear sediment and sludge from the water reservoir and drain the water.
F. Old ponds and water surges in uninhabited areas—drainage.
G. Emergency rescue and disaster relief.
H. Suitable for underground coal mines in environments containing explosive gases such as methane or coal dust.
Terms of Use:
1. Power supply voltage: 6000V or 10000V
2. Medium: pH 4–10
3. Ambient water temperature: ≤50℃
4. Solid content: ≤10%
5. Installation method: Vertical, horizontal, or inclined
6. Submergence depth: ≤700 m, but the minimum submergence water level shall not be lower than the top surface of the outlet flange of the check valve.
Structural Features of the BQ Series High-Pressure, Forced-Discharge, Flameproof Submersible Mine Pump
1. High efficiency and energy savings. Utilizing a high-efficiency hydraulic model, the pump boasts high efficiency, a wide efficient operating range, and remarkable energy-saving performance.
2. Safe and explosion-proof. The high-pressure, high-capacity pump motor is filled with water and features an explosion-proof design. It can be submerged underwater for operation, ensuring adequate motor cooling. The entire head range is designed without overload, guaranteeing safe operation and eliminating concerns about motor overload and burnout.
3. High flow rate and high head. The flow rate ranges from 100 to 1,740 m³/h, and the head ranges from 85 to 1,500 m, meeting the demands for high-flow, high-head drainage applications.
4. Easy to install and operate. It features electromechanical integration, a compact structure, small size, and light weight. Depending on the application environment, it can be installed vertically, horizontally, or at an angle.
5. The technology is advanced and reliable. The axial force self-balancing structure effectively reduces the load on the thrust bearings, ensuring stable operational performance and a long service life. The flow-path components are made of wear-resistant materials, making them well-suited for water with high sand content.
High-pressure mining Submersible pump It mainly consists of a pump casing, an impeller, a guide vane, a shaft, bearings, and a filter screen, among other components.
A double-suction pump has two suction inlets, with two sets of impellers arranged back-to-back and facing each other. In reality, it consists of two separate pumps. Multistage pump In parallel operation, each pump has its own suction port—one located at the upper part and the other at the lower part. Since the two sets of impellers have an equal number and rotate in opposite directions, the water thrust they generate is equal in magnitude but opposite in direction; theoretically, the total axial water thrust is zero. A single-suction pump, by contrast, has only one suction port. In this configuration, two sets of impellers are arranged back-to-back and oriented in opposite directions. When the total number of impeller stages required for head generation is even, the two sets of impellers have an equal number and rotate in opposite directions, resulting in a net axial water thrust. However, when the total number of impeller stages required for head generation is odd, the lower-stage impeller set has one additional stage. In such cases, the final-stage impeller of the lower pump is designed as a balancing impeller equipped with a balance hole. The water thrust generated by the balancing impeller is essentially neutralized. Consequently, although the two sets of impellers still have an equal number and rotate in opposite directions, the overall axial water thrust remains virtually zero. As a result, the pump experiences zero axial force, leading to light bearing loads on the thrust bearings, extended service life, and reliable operation.
The motor is a water-cooled three-phase induction motor, primarily composed of the following major components: an upper guide bearing, a stator, a rotor, a lower guide bearing, a thrust bearing, and a cooler (base). The stator windings are made of cross-linked polyethylene water-resistant winding wire. Inside the stator, there are winding temperature sensors and water-level sensors that monitor the winding temperature and prevent motor damage caused by insufficient water supply. At the lower end of the motor’s shaft, a pump impeller is installed. As the motor rotates, the impeller forces the water inside the motor to circulate from bottom to top, continuously exchanging heat with the externally supplied liquid through components such as the motor housing and cooling channels, thereby reducing the motor’s temperature rise.
The BQ high-pressure submersible electric pump unit as a whole comprises three main components:
1) Main unit: pump, motor, pump-motor coupling, pump-motor coupling sleeve, and their fasteners
2) Install the system components: suction hood, connecting flange, check valve, lift pipe, gate valve, etc.;
3) Control system: cables, electrical control cabinets, etc.;
In addition to providing the main unit, the BQ series submersible mine pumps can also supply installation and control systems, as well as automated control systems that can be connected to the mine monitoring network to enable remote ground-based monitoring.
Performance Parameters of BQ Series High-Pressure Explosion-Proof Submersible Mine Pumps and Motor Performance Parameters
Electric pump performance parameters:
Model Specifications | Traffic | Head height | Impeller stages | Electric pump efficiency | Synchronous speed | Motor power | Rated Voltage (kV) | Outlet diameter |
BQ100-595/6-355/W-S | 100 | 595 | 6 | 47.9 | 1500 | 355 | 6/10 | 100 |
BQ100-600/7-400/W-S | 600 | 7 | 400 | |||||
BQ100-680/8-400/W-S | 680 | 8 | 400 | |||||
BQ100-765/9-450/W-S | 765 | 9 | 450 | |||||
BQ100-850/10-500/W-S | 850 | 10 | 48.4 | 500 | ||||
BQ100-935/11-560/W-S | 935 | 11 | 560 | |||||
BQ100-1020/12-630/W-S | 1020 | 12 | 630 | |||||
BQ100-1110/13-710/W-S | 1110 | 13 | 710 | |||||
BQ150-450/5-400/W-S | 150 | 450 | 5 | 52.2 | 1500 | 400 | 6/10 | 150 |
BQ150-510/6-400/W-S | 510 | 6 | 400 | |||||
BQ150-600/7-500/W-S | 600 | 7 | 52.8 | 500 | ||||
BQ150-680/8-560/W-S | 680 | 8 | 560 | |||||
BQ150-765/9-630/W-S | 765 | 9 | 630 | |||||
BQ150-850/10-710/W-S | 850 | 10 | 710 | |||||
BQ150-935/11-800/W-S | 935 | 11 | 53.4 | 800 | ||||
BQ150-1020/12-900/W-S | 1020 | 12 | 900 | |||||
BQ200-350/4-400/ W-S | 200 | 350 | 4 | 56.6 | 1500 | 400 | 6/10 | 200 |
BQ200-425/5-450/ W-S | 425 | 5 | 450 | |||||
BQ200-510/6-500/W-S | 510 | 6 | 57.2 | 500 | ||||
BQ200-600/7-630/W-S | 600 | 7 | 630 | |||||
BQ200-680/8-710/W-S | 680 | 8 | 710 | |||||
BQ200-765/9-800/W-S | 765 | 9 | 57.9 | 800 | ||||
BQ200-850/10-900/W-S | 850 | 10 | 900 | |||||
BQ200-935/11-1000/W-S | 935 | 11 | 58.2 | 1000 | ||||
BQ200-1020/12-1000/W-S | 1020 | 12 | 1000 | |||||
BQ200-1110/13-1120/W-S | 1110 | 13 | 1120 | |||||
BQ280-340/4-400/W-S | 280 | 340 | 4 | 58.3 | 1500 | 400 | 6/10 | 250 |
BQ280-425/5-500/W-S | 425 | 5 | 59 | 500 | ||||
BQ280-540/6-630/W-S | 540 | 6 | 630 | |||||
BQ280-650/7-800/W-S | 650 | 7 | 59.6 | 800 | ||||
BQ280-730/8-900/W-S | 730 | 8 | 900 | |||||
BQ280-850/9-1000/W-S | 850 | 9 | 60 | 1000 | ||||
BQ280-920/10-1120/W-S | 920 | 10 | 1120 | |||||
BQ280-1035/11-1200/W-S | 1035 | 11 | 60.3 | 1200 | ||||
BQ280-1200/12-1400/W-S | 1200 | 12 | 1400 | |||||
BQ280-1330/13-1600/W-S | 1330 | 13 | 1600 | |||||
BQ280-1445/14-1800/W-S | 1445 | 14 | 1800 | |||||
BQ300-270/3-400/W-S | 300 | 270 | 3 | 59.2 | 1500 | 400 | 6/10 | 250 |
BQ300-360/4-500/W-S | 360 | 4 | 59.8 | 500 | ||||
BQ300-450/5-630/W-S | 450 | 5 | 630 | |||||
BQ300-510/6-710/W-S | 510 | 6 | 710 | |||||
BQ300-595/7-800/W-S | 595 | 7 | 60.5 | 800 | ||||
BQ400-255/3-450/W-S | 400 | 255 | 3 | 60 | 1500 | 450 | 6/10 | 250 |
BQ400-340/4-630/W-S | 340 | 4 | 60.7 | 630 | ||||
BQ400-425/5-800/W-S | 425 | 5 | 61.4 | 800 | ||||
BQ400-510/6-900/W-S | 510 | 6 | 900 | |||||
BQ400-600/7-1000/W-S | 600 | 7 | 61.8 | 1000 | ||||
BQ400-680/8-1120/W-S | 680 | 8 | 1120 | |||||
BQ400-765/9-1400/W-S | 765 | 9 | 62.1 | 1400 | ||||
BQ400-850/10-1600/W-S | 850 | 10 | 1600 | |||||
BQ400-935/11-1800/W-S | 935 | 11 | 1800 | |||||
BQ400-1020/12-1900/W-S | 1020 | 12 | 62.4 | 1900 | ||||
BQ450-170/2-355/W-S | 450 | 170 | 2 | 60.9 | 1500 | 355 | 6/10 | 250 |
BQ450-255/3-500/W-S | 255 | 3 | 61.6 | 500 | ||||
BQ450-350/4-630/W-S | 350 | 4 | 630 | |||||
BQ450-425/5-800/W-S | 425 | 5 | 62.3 | 800 | ||||
BQ450-510/6-1000/W-S | 510 | 6 | 62.7 | 1000 | ||||
BQ500-240/3-500/W-S | 500 | 240 | 3 | 63.4 | 1500 | 500 | 6/10 | 250 |
BQ500-280/3-560/W-S | 280 | 3 | 560 | |||||
BQ500-340/4-630/W-S | 340 | 4 | 630 | |||||
BQ500-360/4-710/W-S | 360 | 4 | 710 | |||||
BQ500-440/5-900/W-S | 440 | 5 | 64.1 | 900 | ||||
BQ500-520/6-1000/W-S | 520 | 6 | 64.4 | 1000 | ||||
BQ500-560/6-1120/W-S | 560 | 6 | 1120 | |||||
BQ500-630/7-1200/W-S | 630 | 7 | 64.8 | 1200 | ||||
BQ500-720/8-1400/W-S | 720 | 8 | 1400 | |||||
BQ500-810/9-1600/W-S | 810 | 9 | 1600 | |||||
BQ500-920/10-1800/W-S | 920 | 10 | 1800 | |||||
BQ500-1000/11-2000/W-S | 1000 | 11 | 65.2 | 2000 | ||||
BQ500-1080/12-2200/W-S | 1080 | 12 | 2200 | |||||
BQ550-170/2-400/W-S | 550 | 170 | 2 | 66.6 | 1500 | 400 | 6/10 | 250 |
BQ550-255/3-560/W-S | 255 | 3 | 560 | |||||
BQ550-340/4-800/W-S | 340 | 4 | 67 | 800 | ||||
BQ550-430/5-1000/W-S | 430 | 5 | 1000 | |||||
BQ550-515/6-1200/W-S | 515 | 6 | 66.6 | 1200 | 350 | |||
BQ550-600/7-1400/W-S | 600 | 7 | 1400 | |||||
BQ550-690/8-1600/W-S | 690 | 8 | 1600 | |||||
BQ550-770/9-1800/W-S | 770 | 9 | 1800 | |||||
BQ550-855/10-2000/W-S | 855 | 10 | 67 | 2000 | ||||
BQ550-940/11-2200/W-S | 940 | 11 | 2200 | |||||
BQ600-170/2-450/W-S | 600 | 170 | 2 | 59.2 | 1500 | 450 | 6/10 | 350 |
BQ600-255/3-710/W-S | 255 | 3 | 59.8 | 710 | ||||
BQ600-340/4-900/W-S | 340 | 4 | 60.5 | 900 | ||||
BQ600-430/5-1120/W-S | 430 | 5 | 60.9 | 1120 | ||||
BQ600-515/6-1400/W-S | 515 | 6 | 61.2 | 1400 | ||||
BQ600-600/6-1800/W-S | 600 | 6 | 1800 | |||||
BQ725-132/3-400/W-S | 725 | 132 | 3 | 67.9 | 1500 | 400 | 6/10 | 350 |
BQ725-160/4-500/W-S | 160 | 4 | 68.6 | 500 | ||||
BQ725-215/5-630/W-S | 215 | 5 | 630 | |||||
BQ725-265/6-710/W-S | 265 | 6 | 710 | |||||
BQ725-290/7-800/W-S | 290 | 7 | 69.4 | 800 | ||||
BQ725-320/8-900/W-S | 320 | 8 | 900 | |||||
BQ725-360/9-1000/W-S | 360 | 9 | 69.8 | 1000 | ||||
BQ725-400/10-1120/W-S | 400 | 10 | 1120 | |||||
BQ725-480/12-1200/W-S | 480 | 12 | 70.2 | 1200 | ||||
BQ725-520/13-1400/W-S | 520 | 13 | 1400 | |||||
BQ725-600/15-1600/W-S | 600 | 15 | 1600 | |||||
BQ725-640/16-1800/W-S | 640 | 16 | 1800 | |||||
BQ725-690/17-1900/W-S | 690 | 17 | 70.6 | 1900 | ||||
BQ725-720/18-2000/W-S | 720 | 18 | 2000 | |||||
BQ725-765/19-2200/W-S | 765 | 19 | 2200 | |||||
BQ1000-100-400/W-S | 1000 | 100 | 1 | 64.4 | 1500 | 400 | 6/10 | 350 |
BQ1000-200/2-800/W-S | 200 | 2 | 65.1 | 800 | ||||
BQ1000-270/3-1120/W-S | 270 | 3 | 66.2 | 1120 | ||||
BQ1000-395/4-1600/W-S | 395 | 4 | 66.6 | 1600 | ||||
BQ1000-450/5-1800/W-S | 450 | 5 | 1800 | |||||
BQ1000-560/6-2200/W-S | 560 | 6 | 2200 | |||||
BQ1100-100-450/W-S | 1100 | 100 | 1 | 65.3 | 1500 | 450 | 6/10 | 350 |
BQ1100-170/2-800/W-S | 170 | 2 | 66.8 | 800 | ||||
BQ1100-255/3-1200/W-S | 255 | 3 | 67.5 | 1200 | ||||
BQ1100-340/4-1600/W-S | 340 | 4 | 1600 | |||||
BQ1100-430/5-2000/W-S | 430 | 5 | 67.9 | 2000 | ||||
BQ1450-85/2-500/W-S | 1450 | 85 | 2 | 72.2 | 1500 | 500 | 6/10 | 350 |
BQ1450-135/3-710/W-S | 135 | 3 | 710 | |||||
BQ1450-160/4-900/W-S | 160 | 4 | 73 | 900 | ||||
BQ1450-200/5-1000/W-S | 200 | 5 | 73.4 | 1000 | ||||
BQ1450-240/6-1200/W-S | 240 | 6 | 73.8 | 1200 | ||||
BQ1450-280/7-1400/W-S | 280 | 7 | 1400 | |||||
BQ1450-295/7-1600/W-S | 295 | 7 | 1600 | |||||
BQ1450-320/8-1800/W-S | 320 | 8 | 1800 | |||||
BQ1450-360/9-2000/W-S | 360 | 9 | 74.2 | 2000 | ||||
BQ1450-400/10-2200/W-S | 400 | 10 | 2200 |
Motor performance parameters:
Model | Rated power | Rated voltage | Rated current | Efficiency | Power factor | Rotational speed | Connection method | Starting current multiple | Starting torque multiplier | Maximum torque multiplier |
YBQ-355/4-S(6000) | 355 | 6 | 44.8 | 89 | 0.85 | 1500 | Y | 6.5 | 1.8 | 0.8 |
YBQ-400/4-S(6000) | 400 | 49.6 | ||||||||
YBQ-450/4-S(6000) | 450 | 55.3 | ||||||||
YBQ-500/4-S(6000) | 500 | 61.5 | 90 | 0.86 | ||||||
YBQ-560/4-S(6000) | 560 | 68 | ||||||||
YBQ-630/4-S(6000) | 630 | 72.4 | ||||||||
YBQ-710/4-S(6000) | 710 | 85.5 | ||||||||
YBQ-800/4-S(6000) | 800 | 96.6 | 91 | 0.86 | ||||||
YBQ-900/4-S(6000) | 900 | 107.2 | ||||||||
YBQ-1000/4-S(6000) | 1000 | 118.8 | 91.5 | 0.86 | ||||||
YBQ-1120/4-S(6000) | 1120 | 133 | ||||||||
YBQ-1200/4-S(6000) | 1200 | 142 | 92 | 0.87 | ||||||
YBQ-1400/4-S(6000) | 1400 | 168.4 | ||||||||
YBQ-1600/4-S(6000) | 1600 | 192.5 | ||||||||
YBQ-1800/4-S(6000) | 1800 | 216.6 | ||||||||
YBQ-1900/4-S(6000) | 1900 | 243.6 | ||||||||
YBQ-2000/4-S(6000) | 2000 | 251.7 | 92.5 | 0.88 | ||||||
YBQ-2200/4-S(6000) | 2200 | 266.6 | ||||||||
YBQ-355/4-S(10000) | 355 | 10 | 29 | 88 | 0.85 | 1500 | Y | 6.5 | 1.8 | 0.8 |
YBQ-400/4-S(10000) | 400 | 31.6 | ||||||||
YBQ-450/4-S(10000) | 450 | 35.6 | ||||||||
YBQ-500/4-S(10000) | 500 | 39.3 | 89 | 0.86 | ||||||
YBQ-560/4-S(10000) | 560 | 44.1 | ||||||||
YBQ-630/4-S(10000) | 630 | 48.7 | ||||||||
YBQ-710/4-S(10000) | 710 | 55.8 | ||||||||
YBQ-800/4-S(10000) | 800 | 61.5 | 90 | 0.86 | ||||||
YBQ-900/4-S(10000) | 900 | 68.4 | ||||||||
YBQ-1000/4-S(10000) | 1000 | 75.6 | 90.5 | 0.86 | ||||||
YBQ-1120/4-S(10000) | 1120 | 83.8 | ||||||||
YBQ-1200/4-S(10000) | 1200 | 89.5 | 91 | 0.87 | ||||||
YBQ-1400/4-S(10000) | 1400 | 103.4 | ||||||||
YBQ-1600/4-S(10000) | 1600 | 116.7 | ||||||||
YBQ-1800/4-S(10000) | 1800 | 130.6 | ||||||||
YBQ-1900/4-S(10000) | 1900 | 139.7 | ||||||||
YBQ-2000/4-S(10000) | 2000 | 144.5 | 91.5 | 0.88 | ||||||
Why choose us?
Changsha Zhonghlian Pump Industry Co., Ltd. was founded in 1989 and was independently established after the restructuring of Changsha Water Pump Factory. It is a comprehensive national high-tech enterprise integrating design, research and development, manufacturing, and service. The company was listed on the Hunan Provincial Equity Exchange on December 31, 2019, with the abbreviation "Zhonghlian Pump Industry" and the equity code: 600275HN. It is currently a key backbone enterprise in China's centrifugal pump industry and one of the major professional manufacturers of multi-stage pumps in the country. The headquarters is located in Changsha City, Hunan Province, a historical and cultural city in China.
Square meters of land area
100% factory pass rate
Square meters of land area
100% factory pass rate
Q
What is your typical delivery time?
A
Models in stock can be shipped the next day at the latest. All others are custom-made, with lead times generally ranging from 7 to 90 days depending on the product size and project specifics. Please contact our sales manager for details: 0731-88632200 。
Q
Do you have centrifugal pumps in stock?
A
Centrifugal pumps come in numerous models and configurations. Except for a small number of high-volume, standard models that are in stock, the vast majority are not stocked and are customized products. We need to select a pump based on your site's flow rate, head, media temperature, pH value, and installation conditions, etc., to determine the pump model and configuration before we can submit an order to the factory for production.
Q
What information should I provide when requesting a quote?
A
Generally, to obtain an accurate quotation, we recommend providing us with the following information: pump flow rate, head, on-site operating voltage and frequency, temperature, pH value, and solid particle content of the fluid being conveyed, and on-site installation conditions (horizontal or vertical installation), etc.
If you are not sure, don't worry, our business managers will assist you in determining this.
Q
What products do you mainly produce?
A
Zhonglian Pump Industry manufactures various large industrial centrifugal pumps. Main products include: self-balancing multi-stage pumps, multi-stage centrifugal pumps, single-stage centrifugal pumps, split-case pumps, chemical pumps, submersible pumps, pipeline pumps, long-shaft pumps, condensate pumps, etc.
Q
Why is it so slow to get a price quote?
A
Because centrifugal pumps are non-standard customized products with many models, the price range is also very large. Even for the same model, the price difference is also very large due to different materials and configurations. Taking the most common water 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 clarify the relevant information to give you an accurate price. Normally, if you provide relatively comprehensive information, we can quote within 5 minutes.
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Hotline:
+86 0731-88632200
Export Trade/Technical Support:
+86 153-4831-2290
Head Office Email:
zoomlian@yeah.net
No. 210, Huanbao Zhong Road, Yuhua District, Changsha City, Hunan Province, Leowoju Wisdom Valley Building B, 8th Floor
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