10. Install the upper cover of the collection box, tighten the bolts, turn on the equipment to see if there is any abnormality. After confirming everything is normal, install the inlet pipe, turn on the equipment again to confirm that there is no abnormal sound, scratch, etc., Install the motor shield, and start the equipment. Observe the work status, and check the bearing temperature . Commissioning with 4 hours idling to make sure no abnormalities

Inlet pipe as a spare part of decanter centrifuge, it need to replace sometime. The following is one case of inlet pipe replacement.

According to the photos client provided, the abraded place is sealing sleeve part of inlet pipe,and we guess the sealing sleeve was also damaged. In order to prevent the new slurry inlet pipe from being damaged again, the damaged sealing sleeve needs to be removed, and the removing of sealing sleeve will not affect the functionality of decanter centrifuge. After the sealing sleeve is removed, the gap between inlet pipe and the rotating parts will be increased, which will prevent the friction between inlet pipe and rotating part .

The specific steps for removing the sealing sleeve:

1.Remove the motor shield, take off the auxiliary motor belt, open the upper cover of the collection box, unscrew the mounting bolts of the centrifuge bearing seat, pull out the positioning pins. Use the sling to lift the centrifuge assembly and place it on a flat floor covered with rubber sheets or V-shaped sleeper. The component of centrifuge assembly can not be in contact with the ground to prevent damage the surface of the part and the mating surface。

2. Make alignment marks on the small end cover and the rotating drum, then unscrew the mounting bolts of the small end cover, push out the the small end cover and bearing seat with jackscrew. The bearing seat should be hung with a strap to prevent falling damage. The disassembled small end cover should be wrapped with plastic film to prevent dirt from falling into the bearing chamber.

3. Unscrew themounting bolts of small-end shaft , and push out the small-end shaft with jackscrew.

4. Remove the seal sleeve of the inlet pipe installed in the small end shaft, check and clean the material in the spiral mandrel, then align the small end shaft with the mark line before, assemble the small end shaft. Pay attention to check the spigot surface, use the fine oil stone polish the burrs and the bulge caused by the jackscrew during disassembling.

  GN has been in the solids control industry for more than 13 years. We never stop to develop new equipment to help our customer impression the drilling efficiency ,and reduce the cost. As we all know there will produce large drilling cutting and other waste solids in the oil field when drilling. We need to transfer these waste into other place immediately to make room for the constantly discharged drilling cutting from shale shaker or decanter centrifuge. Most of oil field use the screw conveyor for these material transferring. But the screw conveyor only can transfer in straight direction , if there is a elbow transfer ,we have to add other screw conveyor. This will occupy much area at job site and also limited on the transfer distance.  

GN drill cutting transfer pump is developed for the high solids material transfer. Difference with screw conveyor, there are two hydraulic rod to inject the material into the pipe, and then push it, complete the the solids transferring. The transfer distance of this pump can reach 100 meters in horizontal and the vertical height can reach 30meters. And the max particle size the pump can transfer is 20mm. GN drilling cutting transfer pump is automatic, we designed a catch hopper, the discharged drilling cutting from shale shaker can directly feed into the hopper, and then be transferred.

We have 3 models according to the transfer capacity , the 15A for 10 tons/hour, 22A for 20tons/hour, and the 30A for 30 tons/hour. Long transfer distance and small occupation space are the advantage to other kinds pump. The solids pump even can transfer 100% dry powder material, but for now, we only used it for drilling industry. Sample mechanical structure , easily maintain and stable quality , that will make sure the drilling cutting transfer pump will instead of screw conveyor someday. If your project have demand on our equipment , welcome to contact us. We will be pleased to quote and provide the technical support.  

As we all know there will produce large waste in the drilling process. Especially in the oil well drilling job site. Some well depth can reach 7000 meters,it need last of drilling mud to take out the cutting from oil well, balance the well pressure, cool the rig tap. Drilling mud is very important and complex material, and also withe high pollution to the environment .It is cycle using , the solids control system can remove out the most particle in the mud , and get the clean liquid for reuse. The discharged solids not only include the drilling cutting, but also include many high pollution mud material . As normal ,these kind material is very hard to treat and speed lots of money. Actually ,there is no technology to reduce these material pollution in zero. So GN solidfication unit is used to solidify these pollution to prevent the pollution spread and go deep into ground pollute the water.

From the photo you can see ,this solidfication unit is a very sample structure, include the feed hopper, catch hopper, mix tank. The cutting will be transferred by the screw conveyor, and feed into mix tank through the feeding hopper. Must times , we use the cement as the curing agent. The worker can directly dump cement to tank through the catch hopper. Then the drill cutting and cement will be mixed inside the tank through a agitator. And then discharge out the tank. After few times, then cement and drill cutting will be solidify together.

After treatment , these material can be used to built road as the base. Or deeply bury. However we do not need to worry the pollution spread , because the pollution material is locked together with cement. GN Solidfication unit has 15m3/hour treatment capacity. And if you need more bigger size, we are also can customized production. Solids control and waste treatment both are the two main business, if you have the demand on our equipment , please feel free to contact us.

Solids control is one branch industry of drilling. In petroleum industry,oil well drilling is a complex project. As usual, the depth of well can reach 7000 meters. The drilling need mud to take out drill cutting from well and also balance the well pressure. GN has been in solids control equipment for more than 15years. We are the first China manufacture that got the API test report for all API code screen, and all our solids control equipment are comply with API standard. For now, we had funded our Houston branch to serve the America client , and Russia branch to serve the area that speak Russia. Last week we delivered 1 set solids control system to our European client. It will be matched with 1000HP rig machine.

The 1000 HP rig usually be used to rig the well less than 1000meters . Which have not too strict requirement to drill mud. As you can see from the photo, the system just include the shale shaker and decanter centrifuge. Shale shaker can remove out most big size particle, and if we use more higher API screen, the smallest particle size that we can remove is 44 um. That is very tiny particle. In this system we didn’t not add any desander and desilter, because the 1000 HP has a small require to the mud flow. If we want to get more cleaner mud, we just need to start the decanter centrifuge. The decanter centrifuge can separate out the particle between 20-40um.

In this system ,our engineer designed small size mud tank. Which is convenient for client to transport it into different job site and also easily to install. All the electrical control and electrical motor are comply with ATEX explosion proof standard to reach the European standard. Stable quality with competitive price, especially the design capacity and customized production are our advantage to serve will our client. If you have demand on solids control equipment, welcome to contact us.