Author Archives: GN Decanter Centrifuge

Construction Mud Solids Liquid Separation Equipment for Australia

News from GN company this week: Recently, 1 set of Construction Mud Solids Liquid Separation Equipment has been manufactured and are ready to start serving for a project in Australia.

This set of Construction Mud Solids Liquid Separation Equipment includes:

1. Linear dewatering vibrating screen GNLMZ1236

2. Double deck Vibrating Screen GNZS706

3. mud cleaner GNZJ703

4. Decanter centrifuge GNLW553

5. Chemical Dosing Unit

To make sure this set of Construction Mud Solids Liquid Separation Equipment will provide a reliable performance and the parts and components of all the equipment will run smoothly for a long term operation, our technical department, production department and quality control department have paid a lot of attention to the material selection, material preparation, every step of production and the inspection for this set of equipment in each step.

If you need any support about the operation and maintenance of Construction Mud Solids Liquid Separation Equipment, like Chemical Dosing Unit, Double deck Vibrating Screen, mud cleaner, Chemical Dosing Unit, Decanter centrifuge, please feel free to contact GN company for our engineers’ best experience and knowledge in the relevant industry. We will do our best to assist your project because just in this way we can establish a stable and long term cooperation. And we can provide on-line support and site instruction for specific situation if needed.

As a leading manufacturer of separation equipment and conveying equipment, GN always pay high attention to the product quality and consider the long-term benefits for our users. We would also like to introduce GN as a professional manufacturer in Decanter centrifuge field, GN pays a lot of attention in the selection of raw materials, high-quality centrifugal casting or forging stainless steel materials are used, and for wearing parts, hard alloy protection is used.

By the way, if you are interested in our products, please check the following items of our company on Alibaba:

Decanter centrifuge

3–Phase Disc centrifuge

Sludge dewatering Screw press

Important factors for the selection of Decanter Centrifuge

It is very important to consider the factor for the selection of Decanter centrifuge, here’s some important factors for the users:

1.1 Differential ratio

The settling velocity of solids in different media is different, and the degree of aggregation is different, so different differential speed ratios should be used. When the other parameters remain unchanged, the differential speed is large, the solid material is pushed out faster, the amount increases, and the liquid content increases, the shaft power generally decreases, but the separation effect will decrease, that is, the solid content in the filtered liquid Will increase. As the differential speed increases, it actually acts as a stirrer in the drum. Choosing the right differential ratio is the first factor to consider when choosing a model.

1.2 Length-to-diameter ratio

The aspect ratio is the ratio of the axial length of the Decanter centrifuge drum to its diameter. The working area of the Decanter Centrifuge is divided into several areas such as feeding, sedimentation, drying, and unloading. The length of the settlement area is the main parameter that determines the separation effect. The longer the settlement area, the greater the aspect ratio, the better the separation effect, but the greater the shaft power. Different length-to-diameter ratios should be selected according to different media properties (mainly settlement performance), and should be considered in combination with differential speed ratios.

1.3 Power

The use of larger power can improve the processing capacity, especially when the settlement performance of the medium is very good. The user has certain difficulty in choosing the model. In the face of new media or media without successful use experience, relevant tests should be conducted.

2 Determination of operating parameters

2.1 Adjustment of overflow diameter

There are four options for the overflow diameter of the general Decanter centrifuge. The larger the diameter of the overflow, the longer the drying zone, and the lower the water content of the filter cake, but the higher the solid content of the filtered liquid, so the appropriate overflow diameter should be adjusted. For the “three mud” that is not easy to settle, it should be smaller, and for the medium that is easy to settle, such as TA residue, it should be larger.

2.2 Speed

According to the working principle of the Decanter Centrifuge, the higher the speed, the better the separation effect, the dryer the filter cake, the clearer the filtered liquid, and the greater the shaft power. This is an important parameter in actual operation, but it is not that the higher the speed, the better the effect. Generally speaking, for the medium that is easy to settle, the higher the speed, the greater the shaft power, which is easy to cause the mechanical or solid material to be pushed out, causing the material to block. Therefore, the appropriate speed should be selected according to the factors such as the power of the Decanter Centrifuge, the feed, the dehydration effect and other factors. For the “three muds” that are not easy to settle, when the rotation speed is high to a certain value, there will be a phenomenon that the separation effect decreases, the sludge production decreases, and the solid content in the filtered liquid increases. When the rotation speed is reduced, the mud production fork will increase. This is because the material slips in the drum and cannot be pushed out. At the same time, as the speed increases, the absolute differential increases, and the stirring effect of the spiral drum is enhanced.

1500GPM Drilling Mud Cleaner for Drilling Company in China

News from GN company this week: Recently, 1 set of Drilling mud cleaner have been manufactured and are ready to start serving for a Drilling Company in China.

To make sure the Drilling mud cleaner will provide a reliable performance and the parts and components of all the equipment will run smoothly for a long term operation, our technical department, production department and quality control department have paid a lot of attention to the material selection, material preparation, every step of production and the inspection for this set of equipment in each step.

If you need any support about the operation and maintenance of Drilling mud cleaner, please feel free to contact GN company for our engineers’ best experience and knowledge in the relevant industry. We will do our best to assist your project because just in this way we can establish a stable and long term cooperation. And we can provide on-line support and site instruction for specific situation if needed.

As a leading manufacturer of separation equipment and conveying equipment, GN always pay high attention to the product quality and consider the long-term benefits for our users. We would also like to introduce GN as a professional manufacturer in decanter centrifuge field, GN pays a lot of attention in the selection of raw materials, high-quality centrifugal casting or forging stainless steel materials are used, and for wearing parts, hard alloy protection is used.

By the way, if you are interested in our products, please check the following items of our company on Alibaba:

Decanter centrifuge

3–Phase Disc centrifuge

Sludge dewatering Screw press

Drilling Fluids Shale Shaker and Mud tank for Offshore Drilling Company

News from GN company this week: Recently, 1 series of Drilling Fluids shale shakers and Mud tanks have been manufactured and are ready to start serving for an Offshore Drilling Company.

Shale shaker is one of the most important drilling fluids treatment equipment, 6 sets of shakers are provided in this system.GN Solids Control also manufactures API 3rd party verified shaker screens, more cost-effective than most of other brands.

GN Solids Control has built thousands of mud tanks for our worldwide clients. At the same time, walkway, ladder and safety guide rails can also be equipped along with the mud tanks.

If you need any support about the operation and maintenance of shale shakers and Mud tanks, please feel free to contact GN company for our engineers’ best experience and knowledge in the relevant industry. We will do our best to assist your project because just in this way we can establish a stable and long term cooperation. And we can provide on-line support and site instruction for specific situation if needed.

As a leading manufacturer of separation equipment and conveying equipment, GN always pay high attention to the product quality and consider the long-term benefits for our users. We would also like to introduce GN as a professional manufacturer in decanter centrifuge field, GN pays a lot of attention in the selection of raw materials, high-quality centrifugal casting or forging stainless steel materials are used, and for wearing parts, hard alloy protection is used.

By the way, if you are interested in our products, please check the following items of our company on Alibaba:

Decanter centrifuge

3–Phase Disc centrifuge

Sludge dewatering Screw press

The methods for removal blocking material from decanter centrifuge

The decanter centrifuge operators often encounters problems like material blocking material during their daily use. Here are some normal solutions about the blocking issue to share with our users:

When the decanter centrifuge cannot be turned on normally and the auxiliary inverter alarms overload, we can remove the protective cover of the auxiliary motor and move the input shaft pulley of the differential with the hand wheel. The phenomenon proved to be that too much material between the spiral and the drum caused the spiral to jam. The solution is as follows:

1. Catch the differential pulley with something, and manually rotate the steering wheel to rotate the drum, until the resistance obviously disappears. Then adjust the main and auxiliary machines to a lower frequency, start at low speed, and rinse with water.

2. Some decanter centrifuges are equipped with foreign frequency converters, such as ABB, Siemens, etc. Some frequency converters have a special low-speed protection starting method.

If the low-speed and high-torque starting function can be realized, just adjust the main and auxiliary machines to the low-speed section and rinse with water.

Another method is to hold the drum in place, remove the end water blocking adjustment plate of the drum, adjust the auxiliary machine to reverse, turn on, and let the material be discharged from the drain outlet of the drum. Then adjust the auxiliary machine to forward rotation and discharge. Repeat the operation. This method is suitable for large length-diameter ratio decanter centrifuges where the material blocking is particularly serious and the artificial rotation cannot move at all.

GN can not only provide users with Dewatering Decanter Centrifuges, rely on GN rich production line of separation and conveying equipment. GN can also provide users with turnkey solutions for the material dewatering process, including solutions for material transportation, classification and dewatering.

Pipe Jacking Slurry Separation Desander Plant for Asia Client

News from GN company this week: Recently, 1 series of Slurry Separation Desander Plant have been manufactured and are ready to start serving for an Asia Client’s project. The equipment includes:

4 sets of GNMS-1000D pipe jacking Slurry separation system

1 set of GNTBM-240 three-stage purification Slurry separation system

Including Vibrating Screen, Desilter, Desander Unit and 2 slurry pumps

3 sets of GNMS-1500D pipe jacking Slurry separation systems, each set is configured as follows:

Desanding cyclone 4 inches: 2 sets

1 set of double-decker vibrating screen

1 set of Sand pump: 75KW

GN Solids Control is one of the most famous International Brand for Mud Solids Control System & Drilling Waste Management. GN have the one stop for Solids Control Solution for mud recycling projects.

To make sure the Slurry Separation Desander Plant will provide a reliable performance and the parts and components of all the equipment will run smoothly for a long term operation, our technical department, production department and quality control department have paid a lot of attention to the material selection, material preparation, every step of production and the inspection for this set of equipment in each step.

If you need any support about the operation and maintenance of GN’s Slurry Dewatering equipment like Vibrating Screen, Desilter, Desander Unit, please feel free to contact GN company for our engineers’ best experience and knowledge in the relevant industry. We will do our best to assist your project because just in this way we can establish a stable and long term cooperation. And we can provide on-line support and site instruction for specific situation if needed.

As a leading manufacturer of separation equipment and conveying equipment, GN always pay high attention to the product quality and consider the long-term benefits for our users. We would also like to introduce GN as a professional manufacturer in decanter centrifuge field, GN pays a lot of attention in the selection of raw materials, high-quality centrifugal casting or forging stainless steel materials are used, and for wearing parts, hard alloy protection is used.

By the way, if you are interested in our products, please check the following items of our company on Alibaba:

Decanter centrifuge

3–Phase Disc centrifuge

Sludge dewatering Screw press

Suggestions for The Decanter Centrifuge Operation

GN is a professional manufacturer in Decanter centrifuge field. In order to achieve a better performance during the separation process of decanter centrifuge, the following advice are provided by GN :

(1) In order to make the Decanter centrifuge as stable as possible, it is required to keep the flow, concentration and temperature of the supply stable. This is very important for the continuous running process. The decanter centrifuge feed is stable and the clarification of its outlet The flow and concentration of liquid and solid residue can be kept constant, and the process equipment connected to the decanter centrifuge can also work in a stable state, which can ensure the stability of the entire system. In order to achieve this purpose, the materials must enter a storage tank with a stirrer before entering the decanter centrifuge. The solid-liquid is made homogeneous by stirring, and then the feed liquid is quantitatively fed into the decanter centrifuge through a flow meter by a screw pump.

(2) For those materials that are highly abrasive to equipment, it is recommended to remove coarse particles first, which can greatly improve the wear on equipment. In order to prevent Decanter centrifuge from blocking, coarse particles larger than the required diameter should be removed before entering the decanter centrifuge. In order to prevent the fibrous material from entering the decanter centrifuge and blocking the material port, which will cause the machine to vibrate, in the sludge dewatering process of urban sewage treatment, a sludge cutter is installed in the decanter centrifuge feed pipe, so that the pipe and screw The clogging of pumps and decanter centrifuges has basically improved.

(3) A flexible connection must be used between the pipeline connected to the inlet and outlet of the decanter centrifuge to prevent the vibration transmission.

(4) Before the decanter centrifuge is stopped, the remaining material in the drum must be cleaned to prevent the drum from being out of balance due to the presence of the residual material, which will cause the excitation vibration at the next stop. Therefore, a water inlet must be configured at the machine inlet to facilitate cleaning when the machine is stopped.

(5) Lifting tools need to be installed in the decanter centrifuge operation workshop for easy maintenance. The control instrument of the decanter centrifuge should be placed in a room with better conditions to ensure the normal operation of the instrument.

Dewatering Screw Press Package Sent to USA for Sewage Treatment

News from GN company this week: Recently, a set of dewatering screw press and Chemical Dosing Unit have been manufactured and are ready to start serving for an Sewage Treatment project in the USA, including one set of screw press GNDL-402 and two sets of 500L Chemical Dosing Units.

To make sure these sets of dewatering screw press and Chemical Dosing Unit will provide a reliable performance and the parts and components of all the equipment will run smoothly for a long term operation, our technical department, production department and quality control department have paid a lot of attention to the material selection, material preparation, every step of production and the inspection for this set of equipment in each step.

GN Solids Control is one of the most famous International Brand for Mud Solids Control System & Drilling Waste Management. GN have the one stop for Solids Control Solution for mud recycling projects.

If you need any support about the operation and maintenance of GN’s equipment like dewatering screw press and Chemical Dosing Unit, please feel free to contact GN company for our engineers’ best experience and knowledge in the relevant industry. We will do our best to assist your project because just in this way we can establish a stable and long term cooperation. And we can provide on-line support and site instruction for specific situation if needed.

As a leading manufacturer of separation equipment and conveying equipment, GN always pay high attention to the product quality and consider the long-term benefits for our users. We would also like to introduce GN as a professional manufacturer in decanter centrifuge field, GN pays a lot of attention in the selection of raw materials, high-quality centrifugal casting or forging stainless steel materials are used, and for wearing parts, hard alloy protection is used.

By the way, if you are interested in our products, please check the following items of our company on Alibaba:

Decanter centrifuge

3–Phase Disc centrifuge

Sludge dewatering Screw press

Sludge Screw Press and Chemical Dosing Unit Ready for Shipment to American Client

News from GN company this week: Recently, a complete set of Sludge dewatering Screw press and Chemical Dosing Unit have been manufactured and are ready to start serving for an American Client.

To make sure this set of Sludge dewatering Screw press and Chemical Dosing Unit will provide a reliable performance and the parts and components of all the equipment will run smoothly for a long term operation, our technical department, production department and quality control department have paid a lot of attention to the material selection, material preparation, every step of production and the inspection for this set of equipment in each step.

GN Solids Control is one of the most famous International Brand for Mud Solids Control System & Drilling Waste Management. GN have the one stop for Solids Control Solution for mud recycling projects.

If you need any support about the operation and maintenance of GN’s equipment like Sludge dewatering Screw press and Chemical Dosing Unit, please feel free to contact GN company for our engineers’ best experience and knowledge in the relevant industry. We will do our best to assist your project because just in this way we can establish a stable and long term cooperation. And we can provide on-line support and site instruction for specific situation if needed.

As a leading manufacturer of separation equipment and conveying equipment, GN always pay high attention to the product quality and consider the long-term benefits for our users. We would also like to introduce GN as a professional manufacturer in decanter centrifuge field, GN pays a lot of attention in the selection of raw materials, high-quality centrifugal casting or forging stainless steel materials are used, and for wearing parts, hard alloy protection is used.

By the way, if you are interested in our products, please check the following items of our company on Alibaba:

Decanter centrifuge

3–Phase Disc centrifuge

Sludge dewatering Screw press

Introduction of the Screw Conveyor inside Decanter Centrifuge

The screw conveyor is a main component of decanter centrifuge, its structure, materials and parameters are directly related to the separation effect, production capacity and service life of the decanter centrifuge. The screw conveyor is mainly composed of a spiral blade, a spiral cylinder and a feed chamber.

①Spiral blade: The spiral blade of the recovery device is a continuous integral spiral blade, the spiral winding direction is right-handed, the blade is perpendicular to the generatrix of the drum, and arranged at equal pitch. Since the spiral blade directly contacts the solid-phase sediment, the solid-phase sediment and the blade move relatively. The blades will wear out in daily use, and the ability to transport sediment after the wear is reduced, so that the moisture content of the sediment increases. In daily inspection work, attention should be paid to the inspection of spiral blades. Maintenance personnel sometimes only pay attention to the inspection of rotating parts and ignore spiral blades. If the spiral of the centrifuge has open welding, cracks or severe wear, it should be repaired in time. The repaired welding place on the screw pushing surface should be polished and smooth, and the spiral should be corrected. The stress relief heat treatment is more difficult to operate, so it is more important to focus on strengthening the protection of the spiral during daily use.

②Spiral cylinder body: The spiral cylinder body is also a cone-pillar combination type. The inner cavity of the cylinder is the feed cavity, and there are four feed distribution holes in the feed cavity.

③Feeding position: In production, the closer the feeding point is to the liquid phase outlet, the smaller the particles have no chance to deposit and will be discharged together with the centrifugal liquid. The manufacturer takes this into consideration when producing the centrifuge. The precision of the feeding point set at the small end of the spiral is set at the middle and rear of the spiral cylinder, which is equivalent to extending the drying zone and solid phase material. The time for centrifugal separation of the liquid is correspondingly extended to ensure the dryness of the solid phase discharge.

By the way, if you are interested in our products, please check the following items of our company on Alibaba:

Decanter centrifuge

3–Phase Disc centrifuge

Sludge dewatering Screw press