SCF-HX Product Technical Parameters

Single unit water treatment capacity range: 12-2600t/h

Shell material: Carbon steel, 304 stainless steel

Water head pressure loss: ≤2mm

Minimum working pressure: ≥0.1Mpa

Maximum working pressure: 1.6Mpa (higher customized according to special specifications)

Sand removal diameter > 0.1mm

Temperature: 0-85℃

Raw water turbidity ≥ 300NTU

Outlet water turbidity ≤10NTU
I. Introduction to the Principle of Solid-Liquid Separator Product

The solid-liquid separator uses the principle of centrifugal separation for decontamination. Since the inlet pipe is installed eccentrically on the cylinder, when water enters the inlet of the cyclone separator, it first forms an oblique downward circumferential flow along the tangential direction of the cylinder. The water rotates downward, and when it reaches a certain part of the cone, it then rotates upward along the cylinder axis, finally discharging through the outlet pipe.

The solid-liquid separator is a highly efficient and extremely convenient and reliable decontaminator that is not easily clogged. It has incomparable advantages over conventional filter-type decontaminators in protecting the safe operation of water systems.
When water flows tangentially into the device at a certain pressure from the sand removal inlet, it generates a strong rotational movement. Due to the different densities of sand and water, under the combined action of centrifugal force, centripetal force, buoyancy, and fluid drag, the lower density water rises and discharges from the outlet, while the higher density sand particles discharge from the bottom sewage outlet, achieving sand removal. It features high sand removal rate, space-saving installation, low leakage rate for small solids, and stable operation.
Process flow: raw water - cyclone sand removal - precision filtration - water storage tank - user. The solid-liquid separator operates on the principles of centrifugal sedimentation and density difference. When water flows tangentially into the device at a certain pressure from the sand remover inlet, it generates strong rotational movement. Due to the density difference between sand and water, under the forces of centrifugal force, buoyancy, and fluid drag, the lower density clean water rises and discharges from the overflow outlet, while the higher density sand discharges from the bottom sand outlet, achieving sand removal. Within a certain range and conditions, the higher the inlet pressure, the higher the sand removal rate, and multiple units can be used in parallel.

II. Features of Solid-Liquid Separator

1. Simple structure, easy operation, safe and reliable use, almost maintenance-free.
2. Compared with expansion pipes, buffer tanks, and other sand removal equipment, it has advantages of small size, large capacity, and space-saving on site.
3. Can remove sand particles from water during uninterrupted water supply.
4. Avoids secondary water pollution common in other sand removal methods, with high sand removal efficiency.

III. Application Fields of Solid-Liquid Separator

The solid-liquid separator is mainly used to remove solid particles from groundwater, geothermal water, and other water sources. It is suitable for water source heat pump systems, central air conditioning cooling water, chilled water systems, winter heating and cooling circulation water systems, and industrial cooling water systems. It is widely used in chemical, environmental protection, food, pharmaceutical, and many other industrial sectors, achieving significant effects in sand removal, turbidity reduction, and solid-liquid separation in water treatment.

1. Mainly suitable for raw water and makeup water quality treatment and control, such as river water and well water sand removal, coal washing water, industrial ore dressing, solid-liquid separation, liquid degassing, and separation of immiscible liquids.
2. Widely applicable to water source heat pump systems, heating water, central air conditioning cooling water, chilled water, steel, power generation, chemical and other industrial and mining enterprises, tap water, seawater, surface water, groundwater, etc.

IV. Selection Considerations for Solid-Liquid Separator

Selection of solid-liquid separator must consider factors such as treatment water volume, external pipe diameter, pipeline working pressure, raw water quality, and treated water quality requirements. Generally, when selecting a solid-liquid separator, under the premise of meeting flow requirements, a larger model is preferred, and it is recommended to use several units in parallel in the system instead of a large unit to achieve better solid-liquid separation effect.

1. The solid-liquid separator should be installed on the main pipe of the water supply network and fixed on the base, with a bypass between the inlet and outlet pipes.
2. To ensure stable water flow at the inlet, a straight pipe section with the same diameter as the inlet should be installed before the device inlet, with a length of 10-15 times the inlet diameter.
3. Sufficient maintenance space should be reserved around the device during installation.
4. During normal operation, open the inlet and outlet valves, and close the sewage and bypass valves.
5. Regularly discharge sand and sewage according to the sand content in the source water. Open the sewage valve during discharge until clear water flows out. The discharge process does not affect normal water use in the system.
6. Close the sewage valve after discharge.
7. If sand discharge pressure is insufficient, close the valve at the outlet.

 Dirty water enters from the filter inlet, first passing through the coarse filter screen to remove larger particles, then reaching the fine filter screen. During filtration, the fine filter screen gradually accumulates dirt and impurities from the water, forming a filter impurity layer. Because the impurity layer accumulates on the inside of the fine filter screen, a pressure difference forms on the inside and outside of the fine filter screen. When the pressure difference of the self-cleaning filter reaches the preset value, a switch signal is sent to the control box PLC system to start a cleaning cycle. Cleaning process: The cleaning mechanism of the fully automatic negative pressure suction filter is a stainless steel spiral up-and-down moving suction scanner. It is hollow in structure, with several suction nozzles vertically distributed at certain distances along its axis. The inside of the suction scanner communicates with the 3” drain valve. When the drain valve opens, the pressure difference between the internal water pressure of the filter and the external atmospheric pressure generates strong suction at each suction nozzle. At each suction nozzle, water flows rapidly from outside to inside in reverse, washing impurities attached to the inner wall of the filter screen into the suction nozzle, through the hollow shaft of the suction scanner, then discharged through the drain valve, completing the cleaning process which takes about 30-60 seconds. At this time, the pressure difference returns to normal, the cleaning process ends, and filtration resumes. During cleaning, the system continues to flow.