Sludge concentration, desiccation and filter pressing system

Abstract

The invention discloses a sludge concentration, desiccation and filter pressing system. The sludge concentration, desiccation and filter pressing system is mainly formed by connecting a sludge gravity concentration basin, a dewatered sludge feed pump, a reaction mixer, a folded screw type sludge dewaterer, a sludge specific resistance conditioning device, a middle delivery pump, a sludge reaction tank, a fed sludge pressing pump and a diaphragm type plate-frame filter press in sequence. The sludge concentration, desiccation and filter pressing system is characterized in that a dosing opening of the sludge specific resistance conditioning device is connected with a conditioner dosing device through a pipeline; the diaphragm type plate-frame filter press is provided with a diaphragm type plate frame wrapped by filter cloth, an inner cavity of the diaphragm type plate frame is connected with a pressurization water tank through a pressurization branch pipe, and a pressure regulating device is arranged on the position, between the pressurization branch pipe and the pressurization water tank, of a header pipe. The system integrates the processes of sludge concentration, mechanical dewatering, specific resistance conditioning, curing conditioning and desiccation, lowers sludge moisture content to below 60%, and has the advantages of automatically running, automatically discharging and saving energy.

Description

technical field

[0001] The invention relates to a sludge concentration and drying filter press system, which belongs to the technical field of environmental protection. Background technique

[0002] With the increasing discharge of urban industrial wastewater and domestic sewage, the urban sewage treatment rate has also increased year by year, and the sludge output of urban sewage treatment plants has also increased sharply. Sewage treatment plants have to discharge a large amount of surplus sludge, a huge amount of sludge Further treatment is required, and if the sludge is not properly treated, it will cause secondary pollution. According to statistics, the cost of sewage sludge treatment and disposal is relatively high. Among the total construction costs of sewage treatment plants, the cost of sludge treatment accounts for about one-fifth to half. The composition of sewage sludge is very complex, in addition to containing a large amount of water, it also contains a large ...

Examples

Embodiment

[0017] Example: such as figure 1 As shown, the present invention is mainly composed of sludge gravity thickening tank (1), dewatered sludge feed pump (2), reaction mixer (3), stacked screw sludge dehydrator (5), sludge ratio resistance conditioning device (7), intermediate delivery pump (8), sludge reaction tank (9), feeding sludge pump (12) and diaphragm plate and frame filter press (21), characterized in that: the sludge The dosing port of the mud specific resistance conditioning device (7) is connected to the conditioning agent dosing device (6) through a pipeline; the diaphragm plate and frame filter press (21) is provided with a diaphragm plate frame (22), and the diaphragm plate The outside of the frame (22) is wrapped with filter cloth (16), and the inner cavity of the diaphragm plate frame (22) is connected to the pressurized water tank (13) through the pressurized branch pipe (15), and the pressurized branch pipe (15) is connected to the pressurized water tank A pres...

technical field

[0001] The invention relates to a sludge concentration and drying filter press system, which belongs to the technical field of environmental protection. Background technique

[0002] With the increasing discharge of urban industrial wastewater and domestic sewage, the urban sewage treatment rate has also increased year by year, and the sludge output of urban sewage treatment plants has also increased sharply. Sewage treatment plants have to discharge a large amount of surplus sludge, a huge amount of sludge Further treatment is required, and if the sludge is not properly treated, it will cause secondary pollution. According to statistics, the cost of sewage sludge treatment and disposal is relatively high. Among the total construction costs of sewage treatment plants, the cost of sludge treatment accounts for about one-fifth to half. The composition of sewage sludge is very complex, in addition to containing a large amount of water, it also contains a large ...

Examples

Embodiment

[0017] Example: such as figure 1 As shown, the present invention is mainly composed of sludge gravity thickening tank (1), dewatered sludge feed pump (2), reaction mixer (3), stacked screw sludge dehydrator (5), sludge ratio resistance conditioning device (7), intermediate delivery pump (8), sludge reaction tank (9), feeding sludge pump (12) and diaphragm plate and frame filter press (21), characterized in that: the sludge The dosing port of the mud specific resistance conditioning device (7) is connected to the conditioning agent dosing device (6) through a pipeline; the diaphragm plate and frame filter press (21) is provided with a diaphragm plate frame (22), and the diaphragm plate The outside of the frame (22) is wrapped with filter cloth (16), and the inner cavity of the diaphragm plate frame (22) is connected to the pressurized water tank (13) through the pressurized branch pipe (15), and the pressurized branch pipe (15) is connected to the pressurized water tank A pres...

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