Submersible Hydraulic Dredging Sand Pump for Harbour Construction

• After-sales Service: Provide
• Warranty: 1 Year
• Max.Head: 10-60m
• Max.Capacity: 50-2000m3/H
• Driving Type: Motor
• Impeller Number: Single-Stage Pump
• Working Pressure: High Pressure Pump
• Influent Type of Impeller: Single Suction Pump
• Position of Pump Shaft: Vertical Pump
• Pump Casing Combined: Verticaljoint Surface Pump
• Mounting Height: Suction Centrifugal
• Impeller: Closed
• Usage: Pump, Pumps
• Horsepower: 4-428HP
• Cable Length: 10m-Customizable
• Outlet Size: 2-16 Inch
• Pump Power: 11-132kw
• Max. Discharge Distance: 1100m
• Max. Passing Gravel Diameter: 56mm
• Application: River Dredging, Sand Pumping, Power Plants, Mining
• Certification: Soncap
• Maximum Flow Rate: 2.5-3m/S
• Motor Insulation Grade: F
• Transport Package: Can Be Packed According to Customers
• Specification: 3kw-315kw
• Trademark: Ocean Pump
• Origin: China
• HS Code: 8413709190
• Production Capacity: 150

Product Description

Submersible Hydraulic Dredging Sand Pump for Harbour Construction 

Product Description

ZJQ submersible sludge pump is hydraulic machinery, the motor and the pump of which are coaxially submerged in medium to work. The overflowing parts of the pump are made from high alloy wear-resistant material, so the pump has good wear resistance and large flowing passage. It is applicable for conveying media such as sludge, ore slurry, coal slurry, sandstones containing big solid particles. The product is designed and manufactured by domestic and over sea advanced technologies. Besides the main impeller, the bottom of the pump is additionally provided with a set of agitation impeller which can spray the deposited sludge into turbulent flow, and therefore the pump realizes high-concentration conveying under the condition of no auxiliary device. The unique seal device can effectively balance the pressure inside and outside the oil chamber, so as to project the reliability of the mechanical seal to the maximum extent. The motor adopts various protective such as overheat protection, water inlet detecting projection, and can operate safely for a long term in harsh working conditions. The pump is applicable for pumping sand for building, silty sand, silt, tailing slurry, ore, iron sand ore, sediment in sewage treatment works, etc.   

The whole machine is dry submersible pump, and the motor adopts oil chamber seal mode and is provided with mechanical seal inside, so that high pressure water and impurities and are effectively prevented from entering inner cavity of the motor.
1.Besides the main impeller, there is the agitation impeller which can agitate the sludge deposited on the water bottom into turbulent flow and pump the sludge out.
2.The trans-flux parts such as the impeller and the agitation impeller are made from high-hardness high chromium cast steel, have wear resistance, corrosion resistance and strong drainage capacity, and allow big solid particles to pass.
3.The motor is submerged in water, is not limited by suction stroke, and has high   sludge suction rate and thorough desilting.
4.The integral device is simplified, needs no auxiliary stirrer device or ejector device, and has simple and convenient operation and low total investment of the unit.
5.The agitation impeller directly approaches the depositional surface, and controls the concentration through submerged depth. Under the condition of large medium proportion, an auxiliary device can be arranged to increase the concentration of the medium.

1.All water contact parts are all constructed with abrasion resistant materials - chromium alloy; so pumps have better stability & longer service life. 2.Unique mechanical seal device can prevent the electric motor from high pressure water and impurities; thus high suction efficiency can be ensured. 3.Except the main impeller, two or three of extra agitators can be equipped to the main pump body to help break and mix the sludge, greatly improve the work efficiency 4.Easy installation, operation and cost saving, no need additional vacuum pump or pump house.

Detailed Photos

 

 

Product Parameters

Flow	50m3/h-2000m3/h
Head	10m-60m
Speed	980rpm-1460rpm
Power	3kw-315kw
Discharge distance	200m-600m
Dredging depth	within35m
Max.flow particle dia.allowed	10-56mm

NO.	Pump Type	DISCH. DIA	CAP	Head	Power	Rotation speed	Eff.	Biggest particles discontinuous pass through
		(mm)	(m³/h)	(m)	(kw)	(r/min)	(%)	(mm)
1	ZJQA50-21-11	100	35	22	11	1460	48	21
			50	21
			60	20
2	ZJQA50-26-11	80	35	29	11	1460	48	13
			50	26
			60	24
3	ZJQA100-18-11	100	70	20	11	1460	55	21
			100	18
			120	15
4	ZJQA25-40-15	80	18	41	15	1460	35	13
			25	40
			30	39
5	ZJQA50-35-15	100	35	38	15	1460	47	13
			50	35
			60	32
6	ZJQA60-30-15	100	42	33	15	1460	50	13
			60	30
			72	27
7	ZJQA75-25-15	100	52	28	15	1460	51	13
			75	25
			90	22
8	ZJQA150-15-15	150	105	17	15	1460	56	21
			150	15
			180	13
9	ZJQA300-20-37	200	300	20	37	980	68	60

Use Conditions
1.The power source is 50Hz/380V three -phase alternating-current supply, and the capacity of the substation transformator two to three times of the rated capacity of the motor.
2.The temperature of the medium cannot exceed 60ºC, and the medium does not contain inflammable or explosive gases.
3.The maximum weight concentration of the solid particles in the medium: the maximum weight concentration of the ash is 45% and maximum weight concentration of the slag is 60%.
4.The submerged depth of the unit is not more than 20 meters, and the minimum submerged depth takes submerging of the motor as reference.
5.The unit works in the medium vertically, and the working status is continuous.

Packaging & Shipping

Can be packed according to customer requirements

Installation Instructions

1.Preparation before Installation
1)Carefully check whether the electric pump is deformed or damaged in the processes of transport, storage and installation and whether the fastening pieces and loosened or fallen off before starting.
2)Check whether the cable is damaged or broken, if yes, replace the cable to avoid electric leakage.
3)Check whether the power source device is safe and reliable and that the rated voltage should accord with the nameplate.
4)Use a megohmmeter to check that the motor stator winding cold ground insulation resistance should not be less than 50 MΩ.
5)Check whether the oil quantity in the oil chamber is appropriate and that the oil level of the unit in the vertical position should be flush with the oil filling opening.
6)Make sure that clear cold water is filled continuously when the submersible pump with the cooling shield is started, and make sure that the outlet is smooth and the cooling water flows in from one side of the lower end and flows out from the upper end of the other side.
2.Notices
After the pump is operated normally, please observe whether the voltage of the power source, the working current, the flow rate of the pump and the vibration of the pump are normal at any time. If one of the following conditions occurs, please immediately stop the machine to check:
1)The working current exceeds the rated current.
2)In the rated pump lift, the flow rate is reduced by more than 20% or the water outlet is discontinuous.
3)The voltage of the water power source is over high or too low.
4)The pump has obvious vibration or noise.
3.Installation Notices
1)Electrical connection: the electrical connection should be carried out by professional electrician according to the circuit diagram, the insulation resistance should be detected at any time in the installation process, and the motor insulation resistance should not be less than 50 MΩ after the installation is over. The pump is hung and subjected to inching turning, so as to observe its rotation direction, and the pump is rated clockwise if a person looks downward from the motor direction. If the rotation direction is wrong, please replace any two connectors of the three phase power supply.
2)Prohibit using the cable of the pump as a rope for installation and hoisting, so as to avoid dangers.
3)The pump should be vertically submerged in water, should not be horizontally placed and fall into sludge, and the power source should be cut off when the pump is moved.
4.Storage Notices
1)The electric pump should be placed into clear water to rotate for several minutes after being used for many times, so as to prevent sediment from remaining in the pump and ensure the cleanness of the electric pump.
2)The electric pump should be taken out from water if not used for a long term, so as to reduce the occasion that the motor stator winding is affected with damp and prolong the service life of the electric pump.
3)Under normal working conditions, the electric pump should be maintained after working for a year, the worn wearing parts should be replaced, the tightening status should be checked, and the lubricating grease of the bearing and the insulating oil in the oil chamber should be replenished or replaced, so as to ensure good operation of the electric pump.

 

Company Profile

OCEAN Pumping Factory is located in Taian City, the famous tourist city near the expressway from Beijing to Shanghai, Shandong Province, China. As the leading mud slurry pump designer and manufacturer, OCEAN Pumping has its own 15,000 square meters state-of-art manufacturing factory.
Tai'an Ocean Pump Co., Limied specializes producing in various sand pumps, slurrypumps, water pumps, cutter suction dredgers, jet suction dredgers, hydraulic cuttersuction dredgers, related hoses, floaters, discharging sand pipes and other variousdredger equipment parts, etc.
With the accumulation and development of years, we have formed a complete system ofpump design, selection, application and maintenance. Our products are widely used inmining, metallurgy, coal washing, power plants, sewage water treatment, dredging, andchemical and petroleum industries. With the confidence of our clients at home and abroadwe are becoming one of the most important pump suppliers in China.
In recent years, we had invested more than 700,000 dollars into our modern manufacturing factory to improve the basic production facilities , working conditions, employee salary and welfare, technical and teamwork training, etc.
Our anti-impact and anti-abrasive material innovation has reached the internationaladvanced level with the efforts for many years. In the hydraulic design, we are the firstslurry pump manufacturer to sign the cooperation agreement on the research anddevelopment of new projects, We will advance bravely without end and strive continuouslto make new progress.
 

Why chose us !
As the professional sand pumping and dredger designer, manufacturer and exporter, OCEAN Pumping had been worked harder to become the leader to supply One Stop Sand Pumpinging Solutions to worldwide customers since 1997.  We have more than 30 talented sand pumpinging experts and strong teams responsible for product development, manufacturing, quality control, exporting, after sales service. We have our own manufacturing factory with professional technicians and advanced machines. By choosing OCEAN Pumping, you choose a long term professional partner for your sand pumpinging business.