Manure Decanter Centrifuge from Shenzhou
Jinhua Shenzhou Centrifuge Company has specially developed a special centrifuge for kitchen waste and livestock manure biogas slurry for a large renewable resources company in Hubei. Since the centrifuge system was debugged and put into operation, it has been running steadily until now. The treatment of kitchen waste and livestock manure with biogas slurry is a large-scale project for the comprehensive utilization of bio natural gas and organic fertilizer for customers; It is a national pilot project for rural new energy in 2015 and a key investment attraction project in the county.
As the core equipment of the solid-liquid separation section of the biogas slurry in this project, the centrifuge can achieve the total solid content and slag water content in the effluent of the centrifuge to meet the design requirements without adding chemicals.Since the commissioning and operation of the project, the core key equipment of the biogas slurry separation section for kitchen waste and livestock manure, the centrifuge, has been specially developed by Shenzhou based on its process and material characteristics. The safe and stable operation of the centrifuge provides strong support for the entire system.
Operating principle:
Sludge centrifugal dewatering machine
The purpose of separation is to separate out substances with different mass ratios from mixed fluid.Separation forms included solid-liquid separation,liquid-liquid separation and liquid-liquid-solid separation.
When mixed fluid enters rotating bowl of centrifuge through feed tube ,solids with larger density would rapidly deposit on inner wall of the bowl,forced by centrifugal acceleration.Then spiral pusher pushed deposited solids to taper end of the bowl,and discharges them out of centrifuge from residual outlet.Meanwhile ,liquid phase with smaller density forms a liquid ring layer and discharges from bowl through overflow port,the bowl and spiral pusher run at a high speed simultaneously ,for there exists speed discrepancy,deposited solids on the wall of bowl could be conveyed to residue outlet by spiral pusher.This separation process carry out continuously.
Separation technique
Feeding-gravitational separation-liquid discharge-sediment discharge.
Separation effect factors Centrifuging factor ,length to diameter ratio of cavity ,depth of fluid pool.
Field control
Application fields
1. Food
Sludge centrifugal dewatering machine
A flesh processing,aquatic products process and edible protein recovery;
B Extract plant protein from soybean,oily seeds and leguminous plants;
C Recovery of brewing leach liquor malt and yeast
D Treatment and recovery of wine lees liquid;
E Extract of instant coffee and tea;
F Clarification of palm oil,olive oil and seed oil;
G Extract juice from fruits ,berries and vegetables;
H Recovery of refined pectin;
I Clarification of grape juice and grape wine.
2. Environmental protection
Drilling mud ,industrial effluent ,waste water of municipal works,fertilizer,organic waste water,paint sludge,plastic
particles,gravel washing water,waste water in steel-making ,flue gas desulfurization,sewage sludge treatment of waterworks.
3. Petroleum and chemical industry
A Processing of kaolin and calcium carbonate,production of bentonite and titanium dioxide;
B Exploration of petroleum oil,natural gas,crude oil refining and related industries,additive of lube oil and waste oil recovery;
C products and final products of organic chemistry industry;
D Thermoplastic materials,includes PVC,polypropylene,polystyrene,synthetic rubber and fiber;
E Inorganic chemical industry ,includes bleach,acid,silica products and fertilizers;
F Treatment of spent wash and molasses fermentation residues;
G Extraction of starch from wheat,corn ,cassava and potato;
H Waste liquid recovery and recycling from above industries.
Main Advantages From Shenzhou China (Two phase Decanter Centrifuge )
This liquid clarifying device adopts horizontal design which balances the layout of electric motor and bowl. As a result,outstanding operation stability generates minimized vibration.
Dual electric motor control enables stepless speed adjustment on bowl and spiral components.
Scroll conveyor flight inside this continuous centrifuge is painted by abrasion resistant alloy or welded by hard alloy. Moreover, main components on our horizontal decanter centrifuge, such as rotating bowl and spiral parts, are made from corrosion resistant stainless steel or dual-phase steel, whereby offering exceptional speed limits and separation ratio.
Our mud dewatering equipment comes with three options including cycloidal gear, planetary gear and hydraulic differential, resulting in large rang of differential adjustment. Therefore, this industrial centrifuge can be applible to diverse solids.
Multiple protections are available on our horizontal decanter centrifuge to ensure operation safety, including over-vibratation protection, bearing temperature detection, screw conveyor torque protection rotating and differential speed detection, as well as nitrogen-filled explosion-proof protection, motr overload and over heat protection.
1. Industrial design
Sludge centrifugal dewatering machine
Whole machine set design follows concept of advanced industrial design,ensures stability,functionality and safety of whole machine.Also effectively absorbs shear force of dynamic load during operation.
2. Effectively ease resonance during rotating of bi-rotor
When centrifuge works,there is no obvious first-order and two-order resonance regions within designed speed range,meanwhile ,whole vibration intensity of bearing seat is definited within 2mm/s-4mm/s.All of this eliminates extra fatigue damage to components and assembly units from high frequency vibration during operation and sudden vibration when shut down.
3. Thoroughly eliminate phenomenon of liquid ring stalling
Phenomenon of liquid ring stalling happens during heavy duty boot or shutdown process of complete set machine,especially for LW550 and even larger models,It would makes bounce or wild shake,causes extra impact fatigue damage to main bearings,screw bearings and inner parts of rotary bowl.Fortunately ,our engineers have solved this problem thoroughly.
4. Unique technique adopt in main component work-blanks
The manufacturing methods of main component work-blanks are adopt centrifugal casting technique and overall mould-making forging technique,thoroughly avoid risks such as inter-granular corrosion and relaxation of residual stress release in welding joint.
5. Main bearing selection
We use origin bearings of international first-line brands such as S-K-F,F-A-G and so on.
6. Constant temperature detection
All fashioning components and assembly units are detected in constant temperature condition,to make sure of actual processing quality meets the requirements of designed precision accuracy.
7. Inter-change ability
Whole machine physical design and processing technique adopted in critical position,ensure all assembly units and bowls of the same centrifuge model interchangeable.It is not only easy to maintain ,but also greatly improve the reliability and safety of equipment.
8. Simplyand safely in bearing disassemblement
One layer of oil film is injected into contact surfaces between bearing and work-piece by high-
pressure,during disassemblement bearing from the machine.which would fundamentally eliminate friction within different parts.As a result,it would reduce 90% of pulling force and lower the risk of damage to high-precision parts when disassemble bearing.
9.Main bearing lubrication system
There are two kinds of lubrication system for specific product models :
A thin oil lubrication
* Oil pump offers an uninterruptedly power to ensure oil works circularly;
* Jet oil lubrication constantly clean and lubricate bearings and reduce temperature;
* Oil filter system ensure lubricant's cleanliness;
* Oil pressure energy storage system ensure lubrication pump offers an extra oil supply(the pressure is no less than 0.4Mpa) for 5-6 minutes,when power fails accidentally;
* Constant temperature system is available.
B grease lubrication
* Adopt a grease with properties of extreme pressure resistance ,oxidation resistance ,abrasion resistance,water scour
resistance,corrosion-proof and high temperature resistance.
* Optional automatic grease system fills grease on main bearing at designed hours and quantity.
10. Main bearing BH device (patent design)
There are two spare safe bearings at either end of main bearing.When machine works well,they keep certain clearance from bearing inside track to chief axis.When unexpected condition occurs,main bearing got damaged or circle center deviation causing an amplitude of vibration reaches to designed clearance,safe bearings begin to work as main bearing Meanwhile,computer automatic control system would get a feedback of abnormal vibration value on bearing position then activates emergency shutdown and goes a smooth shut down.This system protects machine free from damaging and ensure production safety.
11. GSRL feeding device (potent design)
New design of internal spiral core tube has got following achieves.Without reducing centrifugal acceleration,shorten triangle belt's traction time,reduce disorder of swirling flow and extend separation time.Meanwhile increases inner working pressure of centrifuge,and restrains liquid foaming.
|
Model |
Diameter |
Length |
Max Speed
(R/Min) |
L/D Ratio |
G-Force
(G) |
Capacity |
Main Motor Power |
Weight |
Dimension
(L*W*H) |
|
(Mm) |
(Mm) |
(M3/H) |
(Kw) |
(Kg) |
(Mm) |
|
LW400*800 |
400 |
860 |
3200 |
2.2 |
2294 |
2-8 |
15 |
1600 |
2270*1480*980 |
|
LW400*1200 |
400 |
1200 |
3200 |
3 |
2294 |
3-12 |
18.5 |
1800 |
2730*1600*1080 |
|
LW400*1600 |
400 |
1600 |
3000 |
4 |
2016 |
3-15 |
22 |
2000 |
3130*1600*1080 |
Video outgoing-inspection
Warranty of core components
Core Components
PLC, Bearing, Gearbox, Motor
Applicable Industries
Manufacturing Plant, Machinery Repair Shops, Food & Beverage Factory, Farms, Construction works , Food & Beverage Shops, Chemical plant
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