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| Warranty: | 1 Year |
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PRODUCT DESCRIPTION
 LGZ Centrifuge |
PLD Centrifuge |
Application industries: pharmaceuticals, fine chemicals, pesticides, new energy
Separation principle: PLD, LGZ series flat scraper unloading centrifuge, the basket and the shaft system are arranged in a vertical direction, the slurry is filtered through the filter cloth under the action of centrifugal force to achieve solid-liquid phase separation, it is a filter type, intermittent operation centrifuge machine. Filtration accuracy (minimum particle size) 1um.
Under the feeding speed of the centrifuge basket, the liquid/solid mixed fluid is accelerated and evenly distributed in the centrifuge basket from the feed pipe through the distribution plate. Under the action of the centrifugal force field, the solid phase is intercepted through the filter cloth and the liquid phase is filtered out. When the filter cake layer in the basket reaches the set thickness, the cake layer controller sends out a signal to stop feeding. If the process requires, the filter cake can be washed and purified, and the washing liquid can be filtered out at the same time. Further dewatering until the separation requirements are met. Reduce to low speed, the scraper will scrape off the filter cake to complete a working cycle.
The PLD series centrifuge has the function of pulling the bag. After scraping the material, the bag pulling device will act to stretch and shake the filter bag, and the residual filter cake on the surface of the filter bag will fall off and be discharged (it can effectively remove the residual filter cake, and filter after each discharge. bags are regenerated).
LGZ series centrifuges do not have the function of pulling bags. After scraping, there will be about 8mm of residual filter cake on the surface of the filter cloth. For filter cakes with low viscosity and large particle size, the thin residual filter cake will not have a great impact on subsequent filtration. For a certain material, after repeated scraping, the residual filter cake will become very dense, when all or part of the filter performance is lost, the liquid phase will not be filtered out, or the moisture content of the filter cake becomes very high, you can add Equipped with a roller scraper, while the scraper is scraping the material, the roller crushes the residual filter cake, eliminating the impact of the residual filter cake on subsequent filtration.
The operation of the centrifuge is controlled by PLC, and the system runs automatically according to the set operation program. Different models have corresponding operating parameters or adjustment ranges. For specific working conditions, set appropriate operating parameters during commissioning and subsequent operation to meet separation requirements. The control system automatically repairs or protects the overload in the actual operation process.
Work process:The automatic control system controls the centrifuge host, hydraulic system, pneumatic system, nitrogen protection system, valves, pumps, valves, and material delivery systems related to the centrifuge.
Centrifuge system
| Centrifuge system | Configuration |
| Centrifuge host | Standard |
| Electric control box | Standard |
| Hydraulic station | Standard |
| Air control box | Standard (LGZ models without) |
| Nitrogen replacement box | Optional |
| Oxygen content detection box | Optional |
| Gas liquid seal | Optional |
| On-site operation button | Standard |
| filter cloth | 1 piece as standard, the number of meshes is based on the requirements of filtration accuracy |
| special tools | Standard |
| spare parts | agreement to order |
Conditions of use of the centrifuge
| Conditions of use of the centrifuge | Parameter |
| Ambient temperature °C | -10~45; air relative humidity≯85% |
| Design temperature °C | -10~80 |
| Design pressure mbar | 100 |
| Air source pressure bar | 5-7 |
| Washing liquid pressure bar | ≥3 |
| Main power | 3-phase 5-wire system/50HZ/380V |
| Nitrogen source pressure bar | 2-3 |
| Nitrogen purity | ≥99.9% |
| Nitrogen flushing pressure (working condition) bar | 3 |
System
| System | Standard configuration |
| Explosion-proof requirements | According to URS requirements |
| Feeding method | Inclined feed disc or side feed |
| Discharge method | PLD: bottom discharge with scraper + pull bag to remove residual filter cake LGZ: bottom discharge with scraper + roller |
| Open form | Hydraulic cover opening, cover opening safety pin |
| Support and bearing | Flat four-point support |
| Damping system | Spring + high viscosity liquid damping |
| Host driver | Inverter drive + belt drive |
| Scraper driving method | Hydraulic drive |
| Pull bag drive mode | Pneumatic drive (LGZ model without) |
| Scrape | Hierarchical Stratification or Quantitative Stratification |
| Braking method | Resistance energy braking |
| Lubrication method | Grease lubrication, external grease replenishment |
| System control method | PLC program control |
Centrifuge technical parameters
| Centrifuge Technical Parameters | LGZ1000/ PLD1000 | LGZ1250 /PLD1250 | LGZ1600/ PLD1600 | LGZ1800/ PLD1800 |
| Basket inner diameter mm | 1000 | 1250 | 1600 | 1800 |
| Basket effective height mm | 500 | 630 | 800 | 900 |
| Basket volume L | 180 | 400 | 800 | 1000 |
| Maximum loading limit Kg | 250 | 500 | 1000 | 1250 |
| Filter cake layer thickness mm (max) | 120 | 180 | 230 | 250 |
| Basket speed r/min (max) | 1350 | 1200 | 880 | 800 |
| Separation factor G (max) | 1020 | 1008 | 693 | 645 |
| Filtration area m2 | 1.5 | 2.5 | 5 | 6 |
| Hydraulic station system pressure Mpa | 4 | 4 | 6 | 6 |
| Machine weight Kg | 4000 | 5800 | 10500 | 15000 |
| Host Dimensions LxWxH | 2350x1500 x 2105 | 2655x1750 x 2400 | 2960x2320 x 3115 | 3250x2320 x 2750 |
| Dimensions of hydraulic station LxWxH | 800x500 x 850 | |||
| Dimensions of electric control box LxWxH | 800x630x2200 | |||
| Air control box dimensions LxWxH | 800x300x1000 | |||
| Shock absorber installation center distance | 1800 x1150 | 2050 x1400 | 2300 x1800 | 2500 x2000 |
| Basket rotation direction | Clockwise (looking down at the machine) | |||
| Main motor, inverter power kw | 15 | 22 or 30 | 37 or 45 | 45 or 55 |
| Cloth motor, inverter power kw | 2.2 | 3 | 4 | 5.5 |
| Hydraulic station motor power kw | 1.5 | 1.5 | 2.2 | 3 |
| Noise level (1m away from the machine) | ≤85dBA | |||
| Residual filter cake thickness mm | PLD model ≈ 0, LGZ model ≈ 8mm | |||
| Material level detection method | Electromechanical Level Detector | |||
| External detection method | Manhole + mirror + lighting (explosion-proof LED with switch) | |||
Note 1: The above table is a series of standard specifications, 1350, 1400, 1680, etc. are non-standard specifications
Connection nozzle
| Connection nozzle | LGZ1000/ PLD1000 | LGZ1250 /PLD1250 | LGZ1600/ PLD1600 | LGZ1800/ PLD1800 |
| Feed pipe | DN40 | DN65 | DN65 | DN80 |
| Washing pipe | DN25+ atomizing nozzle | DN25+ atomizing nozzle | DN32+ atomizing nozzle | DN40+ atomizing nozzle |
| Shaft seal (main bearing, cloth, scraper) | 10mm (quick twist joint) | 10mm (quick twist joint) | 10mm (quick twist joint) | 10mm (quick twist joint) |
| pressure detection port | G1/2 | G1/2 | G1/2 | G1/2 |
| Outlet pipe | DN100 | DN100 | DN150 | DN200 |
| Outlet | DN300 | DN450 | DN450 | DN600 |
| Exhaust vent | DN65 | DN65 | DN100 | DN125 |
| Nitrogen filling caliber | 16 mm | 16 mm | 16 mm | 16 mm |
| Pull bag intake and exhaust diameter | 16mm | 16mm | 16mm | 16mm |
| Flip cover online cleaning port (optional) | DN25 | DN25 | DN25 | DN25 |
| Side online cleaning port (optional) | DN25 | DN25 | DN25 | DN25 |
| Bottom online cleaning port (optional) | DN25 | DN25 | DN25 | DN25 |
| Outlet hopper online cleaning port (optional) | DN25 | DN25 | DN25 | DN25 |
| Gas-liquid seal liquid inlet | DN100 | DN100 | DN150 | DN200 |
| Gas-liquid seal liquid outlet | DN100 | DN100 | DN150 | DN200 |
| Gas-liquid seal exhaust port | DN65 | DN65 | DN80 | DN100 |
| Sight glass | Φ220 sight glass with scraper | Φ220 sight glass with scraper | Φ220 sight glass with scraper | Φ220 sight glass with scraper |
| Main drive lubrication and grease replenishment | 2 grease filling nozzles, external | 2 grease filling nozzles, external | 2 grease filling nozzles, external | 2 grease filling nozzles, external |
Note 2: Flange according to HG/20615-2009 Class150 series
Outline drawing and structure diagram of PLD centrifuge
The red cutting head on the bottom of the machine base is the forklift position, and the red cutting head on the upper surface of the machine base is the hoisting position Scraping stroke indication Pull bag: filter state/stretch state Pull bag filter bag
PLD Structural diagram of centrifuge
Centrifuge accessories: hydraulic station, gas-liquid seal, nitrogen replacement box, oxygen content detection box
LGZ, PLD centrifuge installation formThis drawing shows the floor installation form. The centrifuge shock absorber can be directly installed on the floor. The discharge port of the centrifuge is set on the floor. The discharge hopper of the centrifuge is located at the lower part of the floor and can be connected to the material warehouse or conveyor.
If it is installed on the bottom floor, it is necessary to set up the installation bracket and the centrifuge to be elevated, so that the discharge port has a sufficient height from the ground for receiving materials. The specific height is determined according to the material receiving method.
For elevated installation, a safety fence should be provided around the centrifuge plate.
The feed pipe, washing pipe, liquid outlet pipe and other pipeline connections of the centrifuge should be connected by hoses.
For the installation requirements of the centrifuge, please refer to the relevant technical requirements of Tongze.
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