HDD is short of horizontal direction drilling, this is widely used in municipal project and also oil gas industry for pipeline laying etc. In most HDD project there will generate large drilling sludge, in some special project, these slurry also mixed much chemical medicine to improve the drilling efficiency and protect the rig. However these slurry is very expensive and also has big pollution to environment if we directly dump. Recycle the involved slurry in drilling sludge is very necessary to reduce the drilling cost and protect environment.

Last week we delivered one set HDD mud reclaimer to abroad project. This system include 2 unit GN mud recycle and one unit mud mixing tank. GN mud recycle unit is a small comprehensive system, which equipped GN shale shaker, hydrocyclone and also mud tank. This is double deck shaker, sludge was feed on the bottom shaker first, which can remove out the big size particle, liquid through shake screen and down to bottom tank. Centrifuge pump transfer slurry from tank into hydrocyclone, under the rotating liquid flow, solids will discharged from bottom of hydrocyclone , and recycled liquid will discharged out the system from top end, this discharged liquid is clean enough for reusing. Solids discharged from cyclone will drop on top layer shaker screen. This screen is higher mesh to separate out small size particle, liquid go through top and bottom shaker screen , finally down to bottom tank. Centrifuge pump it again into hydrocyclone. After a entire loop treatment, we get clean slurry and dry solids.

In this project, we also customized produce mud mixing tank for client mad drilling mud. From photo you can see it has big tank to store cleaner water and also a feeding hopper. Pump water from tank, through venturi principle, chemical medicine will be feed from hopper and mix with water. This design is convent for client to supplement new mud when they need.

GN has more than 15 years manufacture experience in separation equipment.If your project have demand on this kind equipment ,welcome to contact us.

In Latin America and south America, such as Peru ,Chile, Mexico etc. The mining industry of these country is very developed. However ,in the mining process, which will use large water to flush the mining ore , and genera large slurry. Which is high pollution , the sludge with long time accumulation, the quantity is huge. Almost every mining have a huge sludge pit. It is very necessary to treat these sludge ,and recovery the oil.

Last week , we receive inquiry form Peru customer in mining. They have a big issue of sludge in their mine. This customer want us provide solution to process these sludge , otherwise they have to built a new job site for the mining.Client require us recovery the water and dewatering the solids. The recycled water will be reuse for mining, and the dried solids will be transport to landfill near the job site. It is a huge treating capacity ,in the rainy season ,the flow rate can reach 360 cub meter per hour, 30% solids content , particle size centralize over 400 um. For this project, we need to use the big capacity equipment.

Firstly, GNZS595 shaker screen. 3 units shaker, the treating capacity can reach 140m3/hour. It will equipped PU shaker screen to anti wear for long lifetime. In this process, the particle bigger than 400 um will be remove out. And then the discharged liquid will be feed into GNLW764 decanter centrifuge. Which is the biggest mode centrifuge of GN, every hour can treat more 120 cub meter slurry. In this process, the particle size bigger than 5um will be separated out , and it does not need to add any chemical medicine. The moisture of discharged solids will less than 40%, which will dry enough for landfill without any liquid leakage. Water will be stock for mining.

GN has series equipment for waste management , and provide the technical support. If your project have demand on these separation equipment, we will be please to share our experience.

GN Solids Control have more than 13 years manufacture and design experience in Decanter centrifuge. As one of the earliest enterprise of solids control company in China. We exported our equipment to 76 countries all over the world, and built long term cooperate relationship with lots of customer. At the beginning of GN, we main serve oil gas industry to process the drilling mud, and we deigned our own Decanter centrifuge for these drilling mud treat .So what we do best of Decanter is the application on drilling mud treatment.

In drilling mud treatment, GNLW-363VFD is the most popular model. The centrifuge bowl is 14 inch with 45 m3/hour treating capacity when material is water. Along with the solids content raising of material ,the treating capacity will be smaller. The typical capacity is 30m3/hour in work field. This treating capacity almost can satisfied most of the drilling project. Since Decanter centrifuge only be used to separate the particle size smaller than 20um. Only when material include overmuch tiny particle, we run Decanter centrifuge to treat drilling mud.

The moisture of discharged solids is adjustable through change the centrifuge rotating speed. Higher speed would get dryer solids and more clarify liquid. As generally , the solid dryness in following picture is enough for most project. If you want to get more dryer, keep raising speed. High speed and high solids content will speed up the wear of equipment. So choose the adapted speed is helpful to extend equipment lifetime.

GN363 decanter centrifuge also has the fixed speed version. Our engineer will setup the speed in our factory before delivery. Compare with VFD, the application is limited due to the speed is non-adjustable. To some single application or some material with changeless solids content, fixed decanter centrifuge is more economic. Actually, many clients choose this fixed speed decanter for their drilling mud treatment.

Our decanter centrifuge is comply with API standard, if you have demanded on drilling mud treatment, welcome to contact us.

Decanter centrifuge is the most widely used solids-liquid separation equipment in vary industries. GN Solids control has more than 13 years experience in manufacture and designing of Decanter centrifuge. We exported our Decanter centrifuge to 76 countries of all over the world, and we get the good reputation from our customer.

Last week client sent us some chemical sample to test the decanter cent, and to see if our centrifuge is suitable to their manganesesulfate solution dewatering project. In this kind chemical project, most client will require the discharged solids as dry as possible. So we select our T series Decanter centrifuge for this experiment. GNLW-224ET is one mini centrifuge, the treating capacity is 6 m3/hour, and centrifuge bowl is only 9inch, it is very popular in some mining explore project, to use it process the drilling slurry.

In this experiment, our engineer modulate the saturated solution till we can see the crystal of manganoussulfate. Stop add the solids when the solids content reach 15% the totally same status with customer project. Connect the screw pump, and trans the liquid into Decanter centrifuge. To get the most dry solids, we directly adjust the centrifuge speed into 4500 rpm with 2500G force. Under this work situation, the moisture of discharged solids is 2.58%, and the solids content of discharged liquid is 0.3% in volume rate. This separation result reached client requirement, and more better than they expected. After experiment , our engineer recommend the suitable mode of Decanter centrifuge to client according to the treating capacity.

Decanter centrifuge is the best solution for chemical separation. But we need to select special material to make the centrifuge when separate some corrosive material such as sodiumchloride. The chloridion will corrosive centrifuge bowl and scroll. So it is very important to check with our engineer when you use GN Decanter centrifuge to process uncommon material. Not only decanter centrifuge, but we also can provide disc centrifuge ,screw press etc. If you have demanded on our equipment, welcome to contact us.