HR Two-stage Piston Push Centrifuge

 

Product Features And Application

HR series centrifuge is a horizontal two-stage piston push, continuous operation filter centrifuge. It completes all operations at full speed, such as feeding, separation, washing, drying and unloading. It is suitable for the separation of crystallized or short fibrous suspension containing medium par ticles (crystal par ticle size 0.1-10mm shor t fiber within 30mm), widely used in chemical industry, chemical fertilizer, salt making, pharmaceutical, food, light industry and other industrial sectors. HR series centrifuge has automatic continuous operation, continuous slag discharge, high production capacity, not easy to break grain, filter slag can be washed and other traditional advantages, but also has high filter slag production, high solid recovery, low filter slag moisture content, low energy consumption and other characteristics. And the parts of the machine in contact with the material are made of stainless steel, so the corrosion resistance is good.
The main motor drives the inner and outer drum of the set to rotate at full speed, and the material is continuously introduced by the feed pipe and evenly distributed to the filter screen wall of the inner drum. Under the action of centrifugal force, the liquid phase is discharged through the filter screen and the filter hole of the drum wall, and the liquid phase is discharged out of the machine through the discharge pipe, and the solid phase is trapped in the inner drum to form a ring filter cake layer. When the inner and outer drum rotate at the same speed, the inner drum continuously reciprocates in axial motion under the push of the piston, so the pushing plate pushes the inner drum filter cake layer to move outwards continuously and discharge the inner drum, and the outer end of the inner drum is to push the outer drum filter cake layer to move outwards continuously and discharge the outer drum, and discharge th machine through the scraping trough.

Main technical parameters
 

Model	HR-400	HR-500	HR-630	HR-800	HR-1000
Drum diameter (mm)	337/400	400/500	560/630	720/800	920/1000
Filter length of drum	145/155	180/180	240/240	240/320	240/320
Rotary speed (rpm)	1600	1800	1000-1800	800-1600	650-1250
Separator factor(ω2R/g)	545/645	796/904	350/1142	286/1145	236/875
Pushing stroke(mm)	40	50	50	50	50
Pushing times/min	30-70	40-80	30-80	30-80	20-70
Main power (kw)	11	45-37	37-55	55-75	75-90
Oil pump power(kw)	5.5	22	30	37	45
Working pressure of hydraulic system	1-6	5-12	8-25	15-40	18-50
Overall size(mm)	2215*1160*1070	3365*1380*1628	3690*1600*1265	3700*1800*1450	4200*1900*1550
Weight (kg)	2480	3100	4100	7000	12000

Centrifuge Application Conditions and Adaptability Adjustment
Basic application conditions of the two-stage piston discharge centrifuge:

• The material to be separated is a suspension or other solid-liquid mixture, not a turbid liquid;
• Suspension concentration ≥35%
• Average particle size of solid ≥0.08mm;
• Process temperature during separation ≤80℃

Appropriate viscosity;
Separation purpose: solid-liquid separation, obtaining the lowest possible solid moisture content and liquid solid content.
Different separated materials have different separation characteristics. Even for the same separated material, different process methods and operating conditions have different separation characteristics. The quality of the separation characteristics of the separated material will directly affect the separation effect and processing capacity of the centrifuge.

The separation characteristics of the separated material can be adjusted through the following methods:

• Adjust the suspension concentration through pre-concentration measures;
• Adjust the early-stage process to increase the particle size of the solid;
• Adjust the operating temperature to improve the viscosity of the suspension.
• For some difficult-to-separate materials, in addition to taking corresponding adjustment measures for the separated material itself, corresponding adjustments and improvements can also be made to the centrifuge;
• Adjust the drum speed
• Adjust the number of pushes
• Adjust the screen gap and porosity

Except for the number of pushes, which can be adjusted on-site during separation, the adjustments to the technical parameters of the centrifuge must be determined before the centrifuge product is manufactured. In addition, different materials with different corrosion resistance must be matched according to the different corrosiveness of the separated material. Therefore, when customers inquire, please provide detailed information on the characteristic parameters, operating conditions, and separation requirements of the separated material.
 
Centrifuge Quality Assurance
Product quality assurance: Product design, manufacturing, and inspection are carried out in accordance with technical standards such as JB/T447 "Piston Discharge Centrifuge" and quality management system standards such as GB/T19001 idt ISO9001 to ensure that product quality and performance meet design drawings, technical standards, and user requirements.

Typical Separated Materials for Piston Discharge Centrifuges
 

Chloroacetic acid	Acetic acid	Animal bones	Dehydration of coarse-grained coal slurry and suspension concentrates
Dicalcium phosphate dihydrate	Ammonium chloride	Fructose	Sodium sulfate
Lysine	Dispersed rubber	Sodium phosphate	Copper sulfate
Lysine	Dispersed rubber	Sodium phosphate	Polyacrylate
Potassium sulfate	Glauber's salt	Potassium fluophosphate fertilizer	Pentaerythritol salt
Ammonium carbonate	Urea	Potassium fluophosphate fertilizer	Raw phosphate
Potassium chloride	Glutamic acid	Potassium fluophosphate fertilizer	Dehydration after filtering residue
Carnallite	Glutamic acid	Glutamic acid	Chlorate

The various separated materials listed in the table are only some of the uses of this type of centrifuge. With the continuous development of various industries in the national economy, its application breadth and depth will continue to expand, and various new uses will continue to increase. For specific separated materials, appropriate centrifuge types, specifications, and technical parameters must be selected through experiments or analogy analysis.