Monthly Archives: May 2022

Complete set of equipment for sludge dewatering

The complete set of sludge dewatering treatment is an important equipment in urban domestic sewage treatment, sludge treatment in the process of tap water production, and industrial and agricultural sewage treatment projects. It has the integrated processing functions of sludge dewatering and sludge concentration and dewatering. A fully enclosed continuous running large-aspect-ratio Decanter centrifuge is generally used as the main body of sludge dewatering. It has more advantages than other types of sludge dewatering equipment :

2021.12.11 Decanter Centrifuge Skid

1. Fully enclosed operation, clean and pollution-free on site;

2. The amount of flocculant and cleaning water is small, and the daily running cost is low;

3. The equipment layout is compact and the area is small, which can significantly reduce land acquisition and infrastructure investment.

The sludge centrifugal dewatering Decanter centrifuge manufactured by GN company has a large length-to-diameter ratio and high speed. It is also equipped with pumps and conveyors to feed and discharges sludge, and conveys the sludge during the entire processing process, and with dosing unit to add flocculant to the entire system The monitoring of operating conditions is implemented by the control system of PLC + LCD screen. For users, this device is an ideal turn-key project as a fully automated complete operating unit.

1. Sludge feeding system: composed of sludge feed pump, electromagnetic flow meter, valve, pipeline, etc .;

2. Flocculant dosing system: It is composed of PT dry powder automatic quantitative dosing device, dilution water device, dosing screw pump, valve, pipeline, etc. It can realize fully automatic feeding, dissolving, aging, storage, dosing and other processes. The whole process runs completely automatically without human operation.

3. Proportioning system of specific gravity agent: mixing tank, electric diaphragm pump, valve, pipeline, etc. The system is a supporting device for dewatering of oily sludge.

4. Dewatering sludge conveying system (screw conveyor): The design of the screw conveyor can effectively prevent the clogging and entanglement of mud cakes, and is widely used in the transportation of sludge after centrifugal dewatering of sludge.

5. Electronic control system (PLC + LCD screen full automatic control, dynamic picture display): It consists of decanter main engine, feed pump, dosing pump, dilution water pump, PLC control and related electrical components control box and LCD touch screen.

Screw Press Dewatering Machine for South American Client

News from GN company this week: Recently, 2 complete sets of Screw press sludge dewatering machine ( Model number: GNDL101 and GNDL 201) have been manufactured and ready to start serving a new project for a South American Company.

2022.05.18 Screw Press Dewatering Unit

To make sure the 2 sets of Screw press sludge dewatering machines 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 the 2 set of Screw press sludge dewatering machinein each step.

2022.05.18 Screw Press Dewatering Machine 1

If you need any support about the operation and maintenance of the equipment of Screw press sludge dewatering machine 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.

GN high-end CNC lathes, CNC centers, and CNC gantry milling machines can better ensure the machining accuracy of centrifuge parts. In terms of the dynamic balance of the decanter centrifuge, in addition to the ordinary low and medium speed dynamic balance, GN also applies a high speed dynamic balance process, which can dynamically balance the centrifuge screw and bowl at the actual working speed of the centrifuge. In terms of market applications, GN decanter centrifuges are widely used in the industry, and the products are exported to more than 60 countries and regions in the world, and have won high praise from customers.

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

Decanter centrifuge

3Phase Disc centrifuge

Sludge dewatering Screw press

Oil water separator

Centrifugal pump

Vacuum Pump

Submersible pump

Sludge Dewatering Decanter Centrifuge for Europe Waste Disposal Company

News from GN company this week: Recently, a set of Sludge Dewatering Decanter centrifuge has been manufactured and are ready to start serving for a European waste disposal company  .

 2022.05.05 GN decanter centrifuge used in Europe

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.

2022.05.05 VFD control panel decanter centrifuge

To make sure this set of Sludge Dewatering Decanter centrifuge 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 equipment like Sludge Dewatering 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

3Phase Disc centrifuge

Sludge dewatering Screw press

Oil water separator

Centrifugal pump

Vacuum Pump

Submersible pump 

Some Points Comparison between decanter centrifuge and belt filter press

1. Decanter centrifuge is suitable for all kinds of sludge; belt machine is also suitable for all kinds of sludge, but for oily, viscous, remaining activated sludge, it needs a large amount of medicine and dehydration is difficult.

2022.01.13 Decanter Centrifuge

2. The problem of feed control

The Decanter centrifuge can automatically adjust the slip and torque according to the change of the feed concentration, and the belt machine must be manually adjusted.

3. Problems of solid recovery rate and dosage

The solid recovery rate of the Decanter centrifuge is indeed higher than that of the belt machine, but this does not mean that the solid recovery rate of the belt machine cannot be used if it is low. In fact, the belt filter must be returned to the front and reprocessed.

The dosage of medicament is added. A 15 × 104t / d urban sewage treatment plant designed by the author adopts a decanter centrifuge for dehydration. The measured consumption of PAM per ton of dry sludge after production is 1.7-2.0kg. The lower the consumption of medicine with machine (PAM) is generally 4kg / (t [dry mud]).

4. Power consumption problem

The difference in power consumption is not as claimed by the manufacturer of the machine. It is actually controversial. The centrifuge manufacturers will also say that their centrifuges use less electricity. The author speaks a jargon here: power consumption differs mainly depending on the model and the amount of processing capacity.

The noise of the centrifuge is large, but the noise with the machine is not the machine itself, mainly the sound of washing water, the sound feels better than the centrifuge;

5. The life of the machine

The bearing life of a good-quality belt machine is theoretically 20a, which is similar to the life of the host machine. The filter belt needs to be replaced frequently. The filter belt is generally replaced continuously for 2000h operation. If it is intermittently operated and maintained well, then it depends on the length of use and shutdown In contrast, regardless of whether it is a domestic or imported belt machine, the filter belt can generally be replaced with a domestic filter belt, so the cost of replacing the filter belt is not high, and the current domestic equipment of the decanter centrifuge is reliable, stable, and easy to maintain and maintain.

In theory, the running time of the belt machine can also run for 24 hours. Of course, the continuous operation of the belt machine is not as reliable as the centrifuge.

6. Calculation of operating expenses

When the belt filter press dehydration machine manufacturer calculates the dehydration and centrifuge core operating costs, there are many problems in the calculation method used. The operating costs mainly include: pharmaceutical fees, electricity costs and water costs. In addition to the belt machine, there are downtime costs and flushing costs. The author took an 8 × 104t / d sewage treatment plant as an example to calculate the actual operating cost of sludge treatment. Therefore, from the perspective of operating costs, the use of centrifuges and Not higher than with the machine.

High frequency dewatering vibrating screen system sold to American environmental protection company

News from GN company this week: Recently, 1 set of High frequency dewatering vibrating screen system has been manufactured and are ready to start serving for an American environmental protection company. It will be used for sludge treatment in the environmental protection industry.

2022.04.26 High G Vibrating Screen

To make sure this set of High frequency dewatering vibrating screen system 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.

2022.04.26 Dewatering Vibrating Screen

If you need any support about the operation and maintenance of Construction Mud Solids Liquid Separation Equipment, like Vibrating ScreenMud tank, Mixer, Centrifugal pump, 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

3Phase Disc centrifuge

Sludge dewatering Screw press

Oil water separator

Centrifugal pump

Vacuum Pump

Submersible pump