This vehicle is mainly used for the suction and discharge of industrial wastewater in factories and mines, for on-site transportation. It can be licensed and has a tax exemption announcement. This vehicle has three operating functions: "pump suction", "pump discharge", and "gravity flow".

 

 

　　The QLC5250GXW1 suction truck is ideal for suctioning tar sludge water.

　　I. Technical Parameters and Configuration

　　1. Applications and Requirements

　　This vehicle is mainly used for the suction and discharge of wastewater in factories and mines, for intra-factory transportation, can be licensed, and has an exemption from vehicle purchase tax announcement; this vehicle has three operation functions: "pump suction", "pump discharge", and "self-flow";

　　2. Main Configuration Table

 

Vehicle Configuration Parameters		Remarks
Vehicle Model	QLC5250GXW1
Batch Announcement	Under Application
Overall vehicle dimensions: Length × Width × Height (mm)	8200×2500×3450
Chassis Configuration Parameters
Chassis Model	Dongfeng DFH1250D4
Engine power (hp/kw)	290/213
Engine Model	D6.7NS6B290 National VI
Drive Type	6X2
Engine displacement (ml)	6700
Tires	11.00R20 / 11 sets
Wheelbase (mm)	4350+1350
Chassis GVW (kg)	25000
Vehicle Curb Weight (kg)	13000
Tank Configuration Parameters
Tank effective volume (m3)	13
Tank inner diameter (mm)	1700
Tank material	6mm/Q235
Head type	Spin-formed butterfly head
Head material	6mm/Q235
Maximum tank lifting angle	39°
Maximum working negative pressure in tank (mPa)	Vacuum Pump
Tank design negative pressure (Mpa)	-0.1
Maximum working positive pressure in tank (Mpa)	0.06
Tank design positive pressure (Mpa)	0.25
Tank lifting and tilting angle (º)	39
Tank tilting time (s)	≤70
Maximum rear cover opening angle (º)	91
Control water suction and sewage discharge actions	Stainless steel pneumatic ball valve
Loading Operation Configuration Parameters
Loading method	Negative pressure suction
Suction machinery used	Vacuum Pump
Vacuum pump model	50QZXDH-68-7000	Hangzhou Weilong
Tank suction capacity (m)	Horizontal 30, Vertical 8
Time to fill a truck (min)	≤20
Suction hose inner diameter (mm)	100 (matched with on-site pipe joints)
Discharging Operation Configuration Parameters
Discharging method	1. Positive pressure discharge; 2. Open rear cover and lift for self-discharge
Pressure discharge machinery used	Shared with suction vacuum pump
Sewage discharge hose inner diameter (mm)	100
Hydraulic system working pressure (MPa)	16
Tank lifting	Side top double cylinder
Rear cover opening	Double cylinder
Rear cover locking method	Mechanical screw
Maximum rear door opening angle (º)	91

 

　　3. Attachment Configuration Table (per vehicle)

 

On-board Attachment Configuration Table
Serial number	Specification	Model	Quantity/Piece	Remarks
1	Suction and discharge rubber hose	DN100 8 meters long	1 piece
2	Quick connector female end	DN100	1 piece
3	Chassis on-board tools	1 set provided with the chassis	1

 

　　II. Structure and Composition

　　In addition to the vehicle chassis, the suction truck's superstructure includes: tank assembly, power take-off transmission system, suction and discharge pipeline system, pipe box, side and rear guardrails, and safety protection devices, etc.

　　1. Tank assembly

　　The tank is a "cylindrical" container with internal baffles welded inside to divide the tank into compartments, reducing the impact of wastewater fluctuations and inertia on the compartment walls during vehicle travel. Components include the cylinder, end caps, and baffle plates. A water level indicator is installed above the rear end cap. Lifting lugs and a manhole are also installed on the tank top.

　　A bottom frame is welded to the bottom of the tank, and it is fixed to the vehicle's main beam via U-bolts and connecting plates. The tank has reliable strength and rigidity to ensure that it does not deform during vehicle operation and suction/discharge operations.

　　The suction pipe assembly (suction pipe, suction ball valve, and quick connector) is installed on the side of the tank, with the suction pipe entering the tank from the top.

　　The flange ring at the rear of the tank is hinged to the rear end cap. A sealing ring is installed on the rear cover, and a DN80 or DN100 (depending on site configuration) discharge ball valve and quick connector are installed on the underside of the rear cover to connect the discharge hose. The rear cover is opened and closed by two cylinders installed on either side of the tank. The maximum opening angle of the rear cover is 90°. In addition to the two opening cylinders, which also act as locking devices, the rest of the rear cover is locked using a screw-type manual locking device.

　　A check valve is installed at the connection between the tank and the inlet/outlet pipes to prevent backflow during charging operations. A full-load alarm is installed at the front of the tank top.

　　The tank is mainly used for loading sludge and wastewater, and it withstands negative pressure during suction and positive pressure during discharge. The tank's negative pressure design pressure is "full vacuum," and the positive pressure design pressure is "0.25 MPa." The tank has reliable strength and rigidity, ensuring that it does not deform during suction and discharge operations. All connecting surfaces, such as the tank and rear cover, charging port and charging cover, and pipes, are sealed with sealing rings secured by cylinders or bolts to ensure the airtightness of the tank.

　　The tank is lifted by two cylinders installed on either side of the tank. The maximum lifting angle is controlled by a hydraulic limit valve. The maximum lifting angle of the tank is 39 degrees.

　　2. Power Take-Off (PTO) Transmission System

　　The PTO transmission system includes a vehicle PTO, a transmission shaft, and a gear pump driving a vacuum pump (see parameter table for details).

　　3. Suction and Discharge Piping System

　　The suction and discharge piping is a DN100 steel wire reinforced hose with standard quick connectors. Different combinations of ball valves allow for three operating modes: "pump suction," "pump discharge," and "gravity flow":

　　Pump Suction:Wastewater from mine shafts is pumped into the tank (see gas flow direction in Figure 1).

 

(Figure 1)

 

　　Pump Discharge:Wastewater from the tank is pumped to the designated location (see gas flow direction in Figure 2).

 

 

(Figure 2)

 

 

　　Gravity Flow:Wastewater from the tank is discharged to the designated location by gravity flow through the pipes or by opening the rear cover (see Figure 3).

 

 

(Figure 3)

 

　　4. Other

　　The design and manufacture of this vehicle comply with national standards for tank vehicles and motor vehicle safety regulations.

　　Appendix: Figures