The arrangement of the water powered squeezing system of the channel press comprises of a water powered station, an oil chamber, a cylinder, a cylinder bar and a hafland card associated between the cylinder pole and the squeezing plate The design of the pressure driven station comprises of an engine, an oil siphon, a flood valve (to change the strain) a switching valve, a tension measure, an oil circuit and an oil tank.
Filtration method:The way the filtrate streams out is partitioned into open-stream filtration and dim stream filtration. In open-stream filtration, each channel plate is outfitted with a water spout on the lower outlet opening, and the filtrate streams naturally from the spout. For covered stream filtration, the release channel is given under each channel plate, and the release openings of a few channel plates are associated into a solitary release channel, which is released through a line associated with the release opening under the plug.
Washing method:When the channel cake should be washed, there is once in a while single direction washing and two-way washing, and dull stream single direction washing and two-way washing.
The guideline of gear and activity points of the belt channel press
The ooze thickener takes on the type of belt dewatering, and the dewatering machine takes on the type of a completely encased three-stage belt channel press.
Fundamental machine: The thickener and dewatering machine have the capacity of restricting and directing the thickness of the mud layer. The speed of the machine can be changed without a hitch, and its framework sign matches the genuine speed of the machine; the blend of channel fabric embraces enlistment association, the strolling speed is ≥ 1m/min, the strength of the channel material is > 6N/cm, the cross section opening of the thickener is ≤ 450µm, the lattice opening of the dewatering machine is ≤ 600µm, the material is polypropylene, the help life is over 8000 hours; the thickener and the dewatering machine are driven by engines individually, the result speed is flexible, the clamor The cog wheels of the gearbox are planned by ISO filter press company principles, with an assistance element of more than 2.0, the cog wheels are carburised in low-compound steel and have a surface hardness of more than HRC58; the drive unit is secured against over-burden and overheating, the engine has IP55 assurance, Class F protection and Class B temperature rise; every thickener and dewaterer has a different, complete screen flushing framework. Isolated, complete screen flushing framework for every thickener and dewaterer; showering range covering the whole width of the channel material, every spout is replaceable; no sprinkling of flushing water to wet the muck cake; flushing water volume more noteworthy than 6 m3/h-m (transfer speed), water pressure at least 0.4 MPa; thickener and dewaterer with complete programmed control and insurance capacities. All steel parts that might come into contact with the slime are made of treated steel and the edge is made of hostile to consumption carbon steel.
Programmed arrangement and dosing of flocculant framework: flocculant regulation mother alcohol focus 0.5% to 1%, flocculant use fixation 0.1%, flocculant type utilizing polymer powder or fluid flocculant, dosing siphon utilizing screw siphon. Gear strength of the screw siphon decrease gadget is planned by ISO and DIN principles, administration factor ≥ 2.0, gear material is low amalgam steel carburisation treatment, surface hardness higher than HRC58, bearing life (B10) over 100,000 hours. Engine insurance class IP55, class F protection: all materials of the programmed flocculant arrangement and dosing framework ought to be treated steel or non-destructive materials; the control of the flocculant readiness and dosing framework is a protected and programmed working framework, the control box can communicate the working states of the gear to the PLC.
Mud feed siphon: unpredictable moderate pit siphon type; furnished with electric stream managing gadget, the aggregate difficulty free activity season of the siphon is over 20,000 hours; the functioning existence of the stator is over 40,000 hours; the temperature ascent of the bearing doesn’t surpass 35°C surrounding temperature and its cutoff temperature doesn’t surpass 80°C; the bearing takes on mechanical and pressing seal; the spine structure size adjusts to ISO standard; the full plentifulness of the siphon is under 0.055mm (55µm) when working under evaluated working conditions. The siphon’s clamor level is under 70 dB (A); the siphon’s packaging material is solid metal, the pivoting parts material is hardened steel 316, the screw material and consumption safe hard combination steel, the stator material is hard wear-safe elastic, and all association embellishments and foot fasteners material is treated steel 304.
Control framework: the activity technique is neighborhood incorporated manual button control, the entire muck treatment framework ought to be PLC customized and associated with the focal control room, the field bureau is a blend bureau with contact screen HMI for linkage activity, the control bureau ought to likewise be outfitted with I/O interface for communicating the status show sign of every gear to the focal control room. It ought to have the elements of beginning/halting control of every unit, activity and shortcoming sign, crisis stop button, change of the stream pace of the feed siphon and dosing siphon, issue caution, show of the reason for the issue, and so forth
Working guideline and dewatering process
The working guideline of the belt channel press is to utilize two porous channel belts moving in a bunch of compressed shafts, the slime is squeezed in the two channel materials and dried by the tension of the channel fabrics. Coming up next is the course of slime dewatering.
Two drum pre-dewaterers are utilized to do the pre-dewatering work. The slop particles blended in with flocculant in the pre-dewaterer stay in the machine and the water streams out of the machine through the channel fabric, and when the slime has aggregated to a specific sum, it tumbles down from the power source of the pre-dewaterer to the belt channel press.
The pre-dewatering system is vital as it builds the solids centralization of the muck entering the belt press and makes the dewatering proficiency of the belt press higher.
After the slop has been pre-dewatered and brought into the belt press, the main strategy is gravity seepage, this method is once more
This system is to expand the solids content of the ooze again in anticipation of the following working strategy.
After the gravity waste, the ooze is again depleted and equitably circulated on the channel fabric, which steadily begins to be compressed. The thickness of the muck on the fabric relies upon the idea of the slop and the speed of the channel material.
The ooze begins to be squeezed through a bunch of compressed shafts between two channel fabrics and the slop is squeezed dry by the strain produced by the channel material, which can be changed by the dewatering impact.