Name: Belt Filter Press
Brand: IERS
SKU: 272006533

Application

Belt filter press is suitable for sludge dehydration in municipal sewage treatment plants and water plants; sludge dehydration in slaughtering and animal husbandry; sludge dehydration in various industrial wastewater; solid-liquid separation and dehydration in various food, chemical, mining and other industrial processes.

Product Features

1. After the concentrated sludge is condensed and reacted, it is processed into mud cake by a dehydrator for cleaning, transportation or incineration.

2. Belt filter press can process various sludge and has the dual functions of gravity concentration and dehydration.

3. Belt filter press can automatically control the operation and produce continuously, which is suitable for sludge from all industries.

4. The filter belt is not easy to block, easy to clean and requires less water.

5. The components are of good quality and have been strictly tested, with a low failure rate.

6. Continuous processing and high efficiency.

7. The cylinder correction and positioning system controls the filter belt to operate within the specification range without deviation.

8. The automatic tensioning device of the pneumatic cylinder can adjust the air pressure tension according to the needs to make the moisture content of the filter cake low.

9. Low energy consumption, low noise, simple structure, semi-enclosed structure, and easy maintenance.

10. The belt filter press is simple to operate, easy to understand and learn. General staff can master the entire operation process after a short period of learning.

Working Principle

The polymer and sludge are injected into the sludge coagulation mixer through the polymer dosing machine and the sludge feed pump, and then enter the gravity concentration belt through overflow, and are evenly spread on the full width of the filter belt. After passing through the mud-water separation area, they enter the wedge and roller pressure area. Through the filter pressing effect of a series of rollers and filter belt tensioning devices, the sludge is continuously pressurized along the direction of the filter belt until the sludge cake of the dewatering machine falls from the discharge port.

Structure Diagram

51 EN2379

NO.	Name	NO.	Name
1	Chemical inlet	21	Filter liquid upper water collection tray
2	Sludge inlet	22	Air source inlet + pressure setting switch + pressure regulation, filtration, lubrication device
3	Conditioning tank mixer motor	23	Solenoid valve placement box
4	Conditioning tank	24	Upper and lower filter belt tensioning device
5	Gravity concentrated filter belt tensioner	25	Upper and lower filter belt deviation correction device
6	Sump tank	26	Upper and lower filter belt filtrate collection tray
7	Gravity concentrated filtrate collection tray	27	Lower filter belt cleaning
8	Sump tank drain pipe	28	Cleaning water inlet (fixed)
9	Gravity concentrated zone desilter	29	Filter cake receiving tray
10	Gravity concentrated filter belt cleaning	30	Static mixer tube
11	Gravity concentrated filter belt support movable wheel	31	Upper and lower filter belt deviation correction sensor rod
12	Gravity concentrated filter belt	32	Piping of static mixing tube inlet
13	Gravity concentrated filter belt deviation correction device	33	Filter belt drive roller
14	Gravity concentraed filter belt deviation sensor	34	Mud guide roller
15	Outlet of dewatered sludge	35	Low pressure roller pressing zone
16	Continuously variable speed gravity thickening filter belt drive	36	High pressure roller pressing area
17	Gravity concentrated filter belt drive wheel	37	High pressure roller pressing and shear zone
18	Electric control cabinet	38	Filter belt abnormal deviation alarm stop switch
19	Upper filter belt cleaning	39	Emergency stop safety switch
20	Continuously variable speed upper and lower filter belt drive	40

System Function and Processing Flow

1. System function:

A. The main body of the belt filter press is composed of a belt gravity thickener and a belt filter press. In the entire thickening and dehydration system, mud is fed, chemicals are added, mixed, and reacted in sequence. Under steady flow conditions, the pipeline operations such as concentration and dehydration and mud cake output are carried out to remove the water in the sludge.

B. The sludge and flocculant are added to the conditioning tank together, and a good gel feather is formed after appropriate stirring and residence time.

C. The sludge gel feather overflows into the thickening belt by gravity, and through gravity climbing and mud combing devices, the free water separation speed is increased, and the sludge concentration is increased to form a solid mud mass.

D. The sludge mass falls into the gravity dehydration area of the upper filter belt for the second stage of gravity dehydration. At the same time, the sludge distributor is positioned and adjusted to force the sludge mass to be of equal thickness and width.

E. The evenly distributed sludge mass falls by gravity to the gravity dehydration area of the lower filter belt for the third stage of gravity dehydration. At this time, the sludge solid concentration can reach more than 8-10%.

F. The sludge mass begins to enter the initial pressure sludge inlet, and is squeezed and dehydrated in a horizontal wave-shaped motion trajectory from initial pressure → low pressure → medium pressure → high pressure.

G. The mud cake is attached to the filter belt and is guided out, and is peeled off by a scraper and falls into the next stage of treatment.

H. The solid content of the mud cake can reach more than 15-35%.

2. Processing process:

Concentrated sludge → Sludge conditioning and mixing → Mud and water separation gravity concentration → Gravity dehydration → Pre-pressure dehydration → High-pressure dehydration → High-pressure shear dehydration → Mud cake scraping → Subsequent related cleaning and treatment or incineration