Automated centrifugal thickening and dewatering integrated machine, sludge dewatering centrifuge

Description :

　　Automated centrifugal thickening and dewatering integrated machine, sludge dewatering centrifuge

　　Introduction

　　The centrifugal concentration and dewatering integrated sludge dewatering centrifuge produced by Lishui Ruichen Environmental Protection Technology Co., Ltd. can achieve three functions: sludge concentration, sludge dewatering, and integrated sludge concentration and dewatering. The entire concentration and dehydration system consists of five parts: (1) sludge feeding system; (2) Flocculant dosing system; (3) Concentration and dehydration system; (4) Mud cake conveying system; (5) In terms of complete system electrical control devices, Lishui Ruichen Environmental Protection Technology Co., Ltd. has various configurations to adapt to different customer groups, mainly including: (1) simple type: automatic control can be achieved during operation; (2) Universal type: with PLC control.

　　The main features of the large aspect ratio centrifugal concentration and dehydration integrated machine produced by Lishui Ruichen Environmental Protection Technology Co., Ltd

　　Adopting a large aspect ratio L/D: 4-4.8, high-speed, and small differential system: a large aspect ratio increases the settling and dehydration residence time of materials in the machine; High speed has a great centrifugal force; The small differential reduces the stirring of the spiral on the material, increases the dehydration residence time, and thus improves the separation effect of material dehydration and clarification. It can obtain drier solid slag and clearer clarified separation liquid than a typical horizontal spiral centrifuge.

　　2. Adopting a high torque hydraulic differential: It has a large pushing torque (2-4 times greater than a mechanical differential for the same volume), which increases the output of dehydrated solids.

　　3. The hydraulic differential has differential speed adjustment based on load changes, automatic feedback adjustment of differential speed, and automatic compensation of pushing power, so that the solid slag in the machine is not only subjected to centrifugal pressure, but also undergoes bi-directional compression between the two front blades to ensure a constant dryness of the solid slag and obtain drier solid slag. After discharging the solid slag, it automatically restores the initial differential speed without material blockage. The same processing capacity is 30% less than that of a general centrifuge, and the noise is less than 82dB.

　　4. Wide initial differential adjustment range: differential setting range 0~25r/min.

　　5. The slag discharge port, spiral inlet, and pushing surface blades of the rotary drum are high-temperature spray welded with W2C-65% superhard wear-resistant material, with a thickness of 3mm. Compared with the inserts, it has the advantages of good wear resistance and does not need to be replaced, which extends the service life.

　　Working principle of centrifugal concentration and dehydration integrated machine

　　Working process: The high dryness centrifuge optimizes and combines different stages of the separation process in a limited space.

　　Mixing and acceleration stage: The sludge and flocculant are mixed and accelerated in a specially designed inlet chamber to ensure that the sludge enters the separation zone in an optimal state.

　　Clarification stage: Under the action of centrifugal force, the flocculated particles quickly separate and settle in the straight section of the drum. The separated supernatant is discharged through a weir located at the end of the drum.

　　Compression stage: The screw propeller pushes the settled solid to the discharge end, and the sludge is further compressed under the action of centrifugal force, releasing pore water.

　　Bi directional squeezing stage: In the conical section of the drum, the sludge is subjected to a specially designed biaxial squeezing effect, and the screw conveyor is appropriately designed to generate squeezing force along the axial direction. Combined with the compression effect of the centrifuge, further squeeze out the capillary water of the sludge.

　　Control solid retention time: When the amount and quality of sludge entering the centrifuge change, in order to maintain optimal dewatering effect, continuously control the total amount of solids in the high dryness centrifuge drum. This control is achieved through the drive system of the propeller. The propeller drive system can detect the total amount of solids in the drum in real time and automatically adjust the differential speed and compensate for the pushing power.

　　Drive technology: The reliable and excellent performance of high dryness centrifuges requires a better combination of drum drive and propeller drive. Lishui Ruichen Environmental Protection Technology Co., Ltd. has developed a comprehensive and complete drive combination for all types of sludge dewatering, which can recommend the most suitable drive combination method based on specific application backgrounds and requirements.

　　Drum drive system: optional methods include: AC motor+frequency converter; AC motor+hydraulic coupling; Other specific methods.

　　Spiral propeller drive system: optional methods include: AC regeneration rear drive or front wheel drive (variable frequency) DVF multi-stage planetary control; Hydraulic motor with independent hydraulic pump; Other specific methods.

　　Note:

　　1. As with the continuous improvement of the product, any changes in surface parameters shall be subject to the product specifications.

　　2. We can design and manufacture centrifuges of different models, specifications, and parameters according to user requirements.

　　3. The material of this model includes excellent carbon steel and 304, 316, 321 stainless steel.

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• Centrifugal concentration and dehydration integrated machine