High-efficiency flocculation device and sludge dewatering treatment system

Abstract

The invention discloses a high-efficiency flocculation device and a sludge dewatering treatment system. The high-efficiency flocculation device comprises a high-efficiency flocculation mixing main body, a dry powder putting system and a bottom supporting structure; the high-efficiency flocculation mixing main body is of a box body structure composed of a plurality of box bodies including the mud-chemical mixing box and the flocculation mixing tank; a mud inlet and a mud outlet of the box body structure are formed in the upper portion; the mud-chemical mixing box and the flocculation mixing tank are internally provided with stirring devices, fluid in the mud-chemical mixing box flows in from the upper portion and flows out of the lower portion, and fluid in the flocculation mixing tank flows in from the lower portion and flows out of the upper portion; the box body structure is arranged on the bottom supporting structure; the dry powder putting system is connected with a chemical addingport in the mud-chemical mixing box. The sludge dewatering treatment system comprises the high-efficiency flocculation device and a stacking spiral machine. The high-efficiency flocculation device combines a chemical adding device and the flocculation mixing tank and can replace an original flocculation mixing tank, chemical adding device and chemical adding pump at the front end of the stackingspiral machine, the production capacity of the overall equipment is improved, the clear water is saved, the size is small, the space occupied by the equipment is saved, and discharged sewage is reduced.

Description

technical field

[0001] The invention belongs to the technical field of sludge deep dewatering, and relates to a high-efficiency flocculation device and a sludge dewatering treatment system. Background technique

[0002] Municipal sewage plant sludge is a by-product of sewage treatment. With the continuous improvement of sewage treatment volume and discharge standards, the sludge production is increasing day by day. Sewage plant sludge, also called municipal sludge, or excess sludge, generally has a moisture content of 98.0-99.9%, and an organic matter content of dry sludge of 25-60%. Generally, it is necessary to add PAM and other chemicals, flocculate and mix, and then dehydrate through a screw-type sludge dewatering machine to reduce the moisture content of the mud cake to about 80% before further utilization of the sludge mud cake. and disposal.

[0003] At present, the existing sludge dewatering treatment system, such as Figure 7 As shown, it usually includes a feedin...

Examples

Embodiment 1

[0046] Such as figure 1 , figure 2 , image 3 As shown, a high-efficiency flocculation device of the present invention is mainly composed of the following three parts: a high-efficiency flocculation mixing main body, a dry powder dosing system 5 and a bottom support mechanism 8; A box structure composed of multiple boxes including the flocculation mixing tank; the upper part of one side of the box structure is a mud inlet, and the upper part of the other side is a mud outlet; the multiple boxes include three boxes , that is, the preliminary mud mixing box 7, the aging mud mixing box 3, and the flocculation mixing tank 1 connected in sequence; the mud mixing device 6 is arranged in the preliminary mud mixing box 7; Medicine mixing device 4; flocculation mixing tank 1 is equipped with flocculation mixing device 2; mud mixing box (including preliminary mud mixing box 7, matured mud mixing box 3) has a mud inlet at the top and a mud outlet at the bottom , the flow direction o...

Embodiment 2

[0061] The present invention adopts the sludge dewatering treatment system of the above-mentioned high-efficiency flocculation device, such as Figure 8 As shown, it includes a feed system and a dewatering system that are connected in sequence; the feed system includes a sludge tank and a feed pump; the dewatering system includes the high-efficiency flocculation device described in Example 1, the stacked screw sludge dewatering machine (screw stacker) ); the inlet of the feed pump is connected to the sludge tank; the outlet of the feed pump is connected to the mud inlet of the high-efficiency flocculation device; the sludge outlet of the high-efficiency flocculation device is connected to the mud inlet of the screw stacker.

[0062] Its working process is as follows: the sludge from the sewage plant is pumped into the above-mentioned high-efficiency flocculation device from the sludge tank through the feed pump. After the sludge and chemicals complete the flocculation mixing re...

Embodiment 3

[0067] Such as figure 1As shown, a high-efficiency flocculation device of the present invention includes a high-efficiency flocculation mixing main body, a dry powder dosing system 5 and a bottom support mechanism 8; A box structure composed of a plurality of boxes; the upper part of one side of the box structure is a mud inlet, and the upper part of the other side is a mud outlet; the plurality of boxes includes three boxes, that is, the preliminary mud Medicine mixing box 7, aging mud mixing box 3, flocculation mixing tank 1; preliminary mud mixing box 7 is provided with mud mixing device 6; ripening mud mixing box 3 is provided with mud mixing device 4; flocculation The mixing tank 1 is provided with a flocculation mixing and stirring device 2; the upper part of the mud mixing box (including the preliminary mud mixing box 7 and the mature mud mixing box 3) is provided with a mud inlet, and the lower part is provided with a mud outlet. The flow direction of the fluid (that...

technical field

[0001] The invention belongs to the technical field of sludge deep dewatering, and relates to a high-efficiency flocculation device and a sludge dewatering treatment system. Background technique

[0002] Municipal sewage plant sludge is a by-product of sewage treatment. With the continuous improvement of sewage treatment volume and discharge standards, the sludge production is increasing day by day. Sewage plant sludge, also called municipal sludge, or excess sludge, generally has a moisture content of 98.0-99.9%, and an organic matter content of dry sludge of 25-60%. Generally, it is necessary to add PAM and other chemicals, flocculate and mix, and then dehydrate through a screw-type sludge dewatering machine to reduce the moisture content of the mud cake to about 80% before further utilization of the sludge mud cake. and disposal.

[0003] At present, the existing sludge dewatering treatment system, such as Figure 7 As shown, it usually includes a feedin...

Examples

Embodiment 1

[0046] Such as figure 1 , figure 2 , image 3 As shown, a high-efficiency flocculation device of the present invention is mainly composed of the following three parts: a high-efficiency flocculation mixing main body, a dry powder dosing system 5 and a bottom support mechanism 8; A box structure composed of multiple boxes including the flocculation mixing tank; the upper part of one side of the box structure is a mud inlet, and the upper part of the other side is a mud outlet; the multiple boxes include three boxes , that is, the preliminary mud mixing box 7, the aging mud mixing box 3, and the flocculation mixing tank 1 connected in sequence; the mud mixing device 6 is arranged in the preliminary mud mixing box 7; Medicine mixing device 4; flocculation mixing tank 1 is equipped with flocculation mixing device 2; mud mixing box (including preliminary mud mixing box 7, matured mud mixing box 3) has a mud inlet at the top and a mud outlet at the bottom , the flow direction o...

Embodiment 2

[0061] The present invention adopts the sludge dewatering treatment system of the above-mentioned high-efficiency flocculation device, such as Figure 8 As shown, it includes a feed system and a dewatering system that are connected in sequence; the feed system includes a sludge tank and a feed pump; the dewatering system includes the high-efficiency flocculation device described in Example 1, the stacked screw sludge dewatering machine (screw stacker) ); the inlet of the feed pump is connected to the sludge tank; the outlet of the feed pump is connected to the mud inlet of the high-efficiency flocculation device; the sludge outlet of the high-efficiency flocculation device is connected to the mud inlet of the screw stacker.

[0062] Its working process is as follows: the sludge from the sewage plant is pumped into the above-mentioned high-efficiency flocculation device from the sludge tank through the feed pump. After the sludge and chemicals complete the flocculation mixing re...

Embodiment 3

[0067] Such as figure 1As shown, a high-efficiency flocculation device of the present invention includes a high-efficiency flocculation mixing main body, a dry powder dosing system 5 and a bottom support mechanism 8; A box structure composed of a plurality of boxes; the upper part of one side of the box structure is a mud inlet, and the upper part of the other side is a mud outlet; the plurality of boxes includes three boxes, that is, the preliminary mud Medicine mixing box 7, aging mud mixing box 3, flocculation mixing tank 1; preliminary mud mixing box 7 is provided with mud mixing device 6; ripening mud mixing box 3 is provided with mud mixing device 4; flocculation The mixing tank 1 is provided with a flocculation mixing and stirring device 2; the upper part of the mud mixing box (including the preliminary mud mixing box 7 and the mature mud mixing box 3) is provided with a mud inlet, and the lower part is provided with a mud outlet. The flow direction of the fluid (that...

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