Construction site piling sludge dewatering machine Jinhua manufacturer

Company name Zhejiang Jinhua Shenzhou Centrifuge Co., Ltd.
Address No. Jinlong Road, Bailongqiao, Wucheng District, Jinhua City, Zhejiang Province
Inquiry phone number
Manager Liu
Construction site piling silt Dehydrator Jinhua manufacturer construction piling sludge treatment equipment Piling sludge treatment machine
General idea[/]
Output the muddy water formed from soil and sand during piling pile foundation construction, and separate it into soil, sand and recyclables through the muddy water treatment system The recycled mud is transported away by truck in the form of soil and sand.
Technical Solution
Requirements for the mud handling system of the rotary drilling rig
Requirements for the mud handling system capacity, rotary drill diameter and ring length, feed rate, rotary drilling rig's demand for mud The slurry discharge volume of the rotary drilling rig is calculated based on the maximum slurry discharge volume of each rotary drilling rig.
The requirements for the mud index processing results are to maintain the performance of the mud pump, reduce wear, and reduce the cost of piping. Resistance, as a mud for slurry delivery, has the following basic characteristics: Liquid specific gravity, funnel viscosity - sand content or less.
Requirements for reliability The mud treatment system is an important guarantee for the normal excavation of the rotary drill. The treatment system must be foolproof during the construction of the rotary drill and be 100% reliable. The reliability of this treatment system is mainly reflected in the reliability of the overall design in several aspects, that is, the timeliness of slurry treatment, the adaptability of the slurry quality, and the abundant configuration of processing capabilities, including the backup functions of the complete equipment and the assembled equipment itself. The performance, quality and service life of each group of equipment are switched through the piping system and valve group to serve as backup for each other.
Integration of the control system The circulation of mud and water between the rotary drilling rig and the mud and water treatment system is realized by the mud and water transportation system. The soil and sand excavated by the rotary drilling rig enter the slurry storage tank, and the high-density mud and water after stirring is transported by The mud water pump pumps it to the mud water treatment system, where it is processed in the mud water treatment field. After adjusting the density, viscosity and other indicators, the separated mud water is pumped back to the excavation surface, and the cycle continues.
Working principle of the mud treatment system
It consists of three decanter centrifuges. The mud treatment system consists of a dosing system, a sand removal and purification system, a slag discharge system, a recovery mud tank and a mixing mud tank. During pile driving and pile foundation construction, a pumping system can be selected according to the design of the environmental system to ensure that the mud is delivered at a reasonable flow and pressure to the decanter centrifuge of the slag removal and purification system. Most of the sand particles are removed after sand removal, separation and dehydration. , when the rotary drilling rig is digging in the gravel layer or medium sand layer, the mud has met the requirements after passing through the sand removal and purification system. At this time, the slurry outlet valve can be switched, and the purified mud can directly enter the recovery mud tank. The high-speed pulping machine of the pulping system will timely mix the mud in the mud tank and pump it back to the rotary drilling rig. When the rotary drilling rig is digging in the silt layer and the sand removal and purification system is not enough to reduce the mud gravity and sand content to a reasonable range, the dosing valve can be switched to use the chemical liquid sand removal and purification system. The sand in the mud can be removed. The mud after sand removal flows from the slurry outlet into the adjusting tank, and is pumped back to the well after being adjusted.
Mud water treatment system
The system was established in order to achieve the stable mud indicators required by the two rotary drilling rigs and achieve the ideal effect of mud water separation. According to the geological structure, particle size distribution and processing volume per unit time , design this system. This system uses three decanter centrifuge mud purification systems, one decanter centrifuge mud purification system as standby, and a dosing system to form a mud treatment system.
After the rotary drilling rig digs, the mud discharged from the mud pipe is purified by the processing equipment. If the sand content of the treated mud water meets the requirements, it can be directly discharged into the sedimentation tank for overflow sedimentation. Otherwise, it will be added The pharmaceutical system treatment equipment performs further processing, and then is discharged into the sedimentation tank for overflow sedimentation. After treatment and chemical addition, the screened out ballast soil is transported to a designated waste dump for storage. After the mud overflows into the adjustment tank, if the amount of mud is excessive, the mud can be discharged into the abandoned mud tank and stored. When the mud amount exceeds the capacity of the abandoned mud tank, it will be pumped to a nearby transport carrier and transported to the abandoned mud field. If the mud amount cannot meet the requirement, When the demand is high, a pulping machine can be used to make artificial pulp for replenishing. When the mud concentration in the adjustment tank meets the requirements, it should be directly pumped by the slurry pump to the rotary drilling rig. If the mud concentration is too thick, add water to dilute it. If the mud concentration is too low, adjust the slurry to increase the mud concentration before pumping. to the rotary drilling rig.
Handle equipment backup and security to ensure equipment configuration backup. According to the sludge discharge flow rate, the sludge discharge equipment is used for treatment first, and then the sludge is discharged into the sedimentation tank for overflow process. At this time, the capacity of the processing equipment required for each rotary drilling rig to discharge mud is/. This project uses three decanter centrifuge mud treatment equipment. Each rotary drilling rig is equipped with one set of decanter centrifuge mud treatment equipment to meet the processing requirements. The remaining set of decanter centrifuge mud treatment equipment is reserved. Moreover, the equipment can be used as backup for each other through pipeline switching, so that the equipment reserve capacity is greatly enhanced. There are three decanter centrifuge-type processing equipment working, because the chance of three decanter centrifuge-type equipment failing at the same time is very small. The safety of the system is that the whole machine has a large ballast slurry processing capacity and a high purification/sand removal rate, which can reach above. The decanter centrifuge type mud treatment system is simple to operate, has low failure rate, is easy to install, use and maintain, has good use effect and high separation efficiency. It can be adapted to the construction process of various piling pile foundation construction in different strata. The motor has high power factor, low energy consumption and significant energy saving effect. The operation noise is low, which is beneficial to improving the working environment. It has the advantages of advanced structure, high degree of generalization, reliable operation and convenient disassembly, assembly and maintenance to ensure the long-term normal operation of the equipment. The electrical control adopts a variable frequency start control system, which can realize fully automatic control. The wiring is simple, the anti-interference ability is strong, and the maintenance and repair are convenient.
Implementation results
It fully meets the normal tunneling capacity of the rotary drilling rig and improves production efficiency.
The treated mud has high quality and a sand content of less than 10%, which prolongs the service life of the equipment and improves economic benefits.
Since the moisture content of the treated soil and sand is lower than that of the treated soil, the discharge amount is greatly reduced, and transportation is convenient, which avoids environmental pollution caused by mud discharge problems and is beneficial to environmental protection.