CN211645024U

CN211645024U - Sludge dewatering device

Info

Publication number: CN211645024U
Application number: CN201922405894.3U
Authority: CN
Inventors: 覃飞; 陈洪明; 谢凡
Original assignee: Guangxi Yineng Environmental Protection Engineering Co ltd
Current assignee: Guangxi Yineng Environmental Protection Engineering Co ltd
Priority date: 2019-12-28
Filing date: 2019-12-28
Publication date: 2020-10-09
Anticipated expiration: 2029-12-28

Abstract

A sludge dewatering device comprising: the sludge dewatering device adopts two modes of centrifugal dewatering in the first half and rolling dewatering in the second half, and the dewatering efficiency is improved by more than 80% compared with that of the traditional equipment adopting centrifugal dewatering; the squeeze roll surface adopts the screw thread structural design, can promote silt to advance in the extruded, can not cause the jam, is equipped with the heating wire in the squeeze roll and makes the squeeze roll wholly generate heat, and the evaporation of mud moisture is accelerated at the extruded in-process, plays certain stoving effect, makes the sludge dewatering rate higher.

Description

Sludge dewatering device

Technical Field

The utility model relates to an environmental protection equipment field specifically is a sludge dewatering device.

Background

The dewatered sludge is a solid residue remaining after dewatering wet sludge by drainage or filtration. After various dehydration treatments, the water content is reduced to 65-85 percent and the sludge becomes wet soil-shaped sludge. The non-toxic dewatered sludge can be directly used as fertilizer in farmland. The water content of the sediment in the wastewater treatment process reaches 99 percent, and a part of water needs to be removed before the sludge is treated so as to reduce the volume of the sludge and facilitate transportation and further treatment. The method for removing the water in the sludge generally comprises gravity concentration, vacuum filtration, filter pressing, stacking and natural air drying and the like.

Most of existing sludge dewatering machines on the market adopt a centrifugal dewatering mode, the dewatering efficiency is low, dewatered sludge blocks are different in shape and difficult to transport, and in order to solve the problems of the existing sludge dewatering machines, the applicant provides a novel sludge dewatering device.

Disclosure of Invention

The utility model aims at providing a combine centrifugal dewatering, roll-in dewatering and three kinds of modes of stoving dewatering high efficiency sludge dewatering device as an organic whole. In order to achieve the purpose, the utility model adopts the following scheme:

a sludge dewatering device comprising: flocculating agent holding vessel, flocculating agent inlet pipe, flocculation drum shell, mud inlet, centrifugal chamber, main shaft, pile spiral shell piece, roller press room, squeeze roll, strainer, drainage port, mud outlet and inverter motor, the inside first half of drum shell is the centrifugal chamber, and the latter half is the roller press room, and centrifugal chamber and roller press room all pass through bracing piece and drum shell inner wall fixed connection, and the flocculating agent holding vessel passes through the flocculating agent inlet pipe and links to each other with the centrifugal chamber, and the drum shell of centrifugal chamber below is equipped with the drainage port, and the strainer is installed to the drainage port, and the main shaft runs through the drum shell, and main shaft one end is connected with inverter motor, and the main shaft other end is fixed at the drum shell end through the bearing, and the part that the main shaft passed the centrifugal chamber is equipped with pile spiral shell piece, is equipped with the mud outlet on the drum shell of the below of roller.

Further, the centrifugal chamber is a latticed cylinder made of stainless steel materials.

Further, the diameter of the roller pressure chamber is 10-20 cm larger than that of the centrifugal chamber.

Further, the main shaft is of a hollow structure and can be used for laying lines.

Furthermore, the surface of the extrusion roller is of a threaded structure, an electric heating wire is arranged in the extrusion roller, and a power supply circuit of the electric heating wire penetrates through the main shaft to be connected with an external power supply.

The utility model has the advantages that:

(1) the sludge dewatering device adopts the first half section centrifugal dewatering, and the second half section rolling dewatering two modes are combined, so that the dewatering efficiency is improved by more than 80% compared with the traditional equipment adopting centrifugal dewatering.

(2) The squeeze roll surface adopts the screw thread structural design, can promote silt to advance in the extruded, can not cause the jam, is equipped with the heating wire in the squeeze roll and makes the squeeze roll wholly generate heat, and the evaporation of mud moisture is accelerated at the extruded in-process, plays certain stoving effect, makes the sludge dewatering rate higher.

(3) This application adopts inverter motor drive main shaft, can be according to different demands adjustment rotational speed.

Drawings

FIG. 1 is a schematic structural view of the sludge dewatering device;

FIG. 2 is a schematic view of the internal structure of the squeeze roll;

the meanings are shown below:

1-a flocculant storage tank; 2-flocculant feeding pipe; 3-a cylindrical shell; 4-a sludge inlet; 5-centrifugal chamber; 6-a main shaft; 7-stacking snail sheets; 8-a roller press chamber; 9-a squeezing roller; 10-a water filtering net; 11-a water filtering opening; 12-a sludge outlet; 13-a variable frequency motor; 14-a support bar; 15-a bearing; 16-electric heating wire.

Detailed Description

The sludge dewatering device comprises: the flocculant mixing device comprises a flocculant storage tank (1), a flocculant inlet pipe (2), a cylindrical shell (3), a sludge inlet (4), a centrifugal chamber (5), a main shaft (6), a laminated spiral sheet (7), a roller pressure chamber (8), a squeeze roller (9), a water filtering net (10), a water filtering port (11), a sludge outlet (12) and a variable frequency motor (13), wherein the front half part of the interior of the cylindrical shell (3) is the centrifugal chamber (5), the rear half part of the interior of the cylindrical shell is the roller pressure chamber (8), the centrifugal chamber (5) and the roller pressure chamber (8) are fixedly connected with the inner wall of the cylindrical shell (3) through a support rod (14), the flocculant storage tank (1) is connected with the centrifugal chamber (5) through the flocculant inlet pipe (2), the cylindrical shell (3) below the centrifugal chamber (5) is provided with the water filtering port (11), the water filtering net (10) is installed at the water, one end of a main shaft (6) is connected with a variable frequency motor (13), the other end of the main shaft (6) is fixed at the tail end of a cylinder shell (3) through a bearing (15), a laminated spiral sheet (7) is arranged on the part of the main shaft (6) penetrating through a centrifugal chamber (5), a sludge outlet (12) is arranged on the cylinder shell (3) below a roller pressing chamber (8), and a squeezing roller (9) is arranged on the part of the main shaft (6) penetrating through the roller pressing chamber (8). Preferably, the centrifugal chamber (5) is a latticed cylinder made of stainless steel material.

Preferably, the diameter of the roller chamber (8) is 15cm larger than the diameter of the centrifugal chamber (5).

Preferably, the main shaft (6) is of a hollow structure and can be used for laying lines.

Preferably, the surface of the extrusion roller (9) is in a threaded structure, an electric heating wire (16) is arranged in the extrusion roller (9), and a power supply circuit of the electric heating wire (16) penetrates through the main shaft (6) to be connected with an external power supply.

Claims

1. A sludge dewatering device, comprising: the flocculant mixing device comprises a flocculant storage tank (1), a flocculant inlet pipe (2), a cylindrical shell (3), a sludge inlet (4), a centrifugal chamber (5), a main shaft (6), a laminated spiral sheet (7), a roller pressure chamber (8), a squeeze roller (9), a water filtering net (10), a water filtering port (11), a sludge outlet (12) and a variable frequency motor (13), wherein the front half part of the interior of the cylindrical shell (3) is the centrifugal chamber (5), the rear half part of the interior of the cylindrical shell is the roller pressure chamber (8), the centrifugal chamber (5) and the roller pressure chamber (8) are fixedly connected with the inner wall of the cylindrical shell (3) through a support rod (14), the flocculant storage tank (1) is connected with the centrifugal chamber (5) through the flocculant inlet pipe (2), the cylindrical shell (3) below the centrifugal chamber (5) is provided with the water filtering port (11), the water filtering net (10) is installed at the water, one end of a main shaft (6) is connected with a variable frequency motor (13), the other end of the main shaft (6) is fixed at the tail end of a cylinder shell (3) through a bearing (15), a laminated spiral sheet (7) is arranged on the part of the main shaft (6) penetrating through a centrifugal chamber (5), a sludge outlet (12) is arranged on the cylinder shell (3) below a roller pressing chamber (8), and a squeezing roller (9) is arranged on the part of the main shaft (6) penetrating through the roller pressing chamber (8).

2. The sludge dewatering apparatus according to claim 1, characterized in that: the centrifugal chamber (5) is a latticed cylinder made of stainless steel materials.

3. The sludge dewatering apparatus according to claim 1, characterized in that: the diameter of the roller pressure chamber (8) is 10-20 cm larger than that of the centrifugal chamber (5).

4. The sludge dewatering apparatus according to claim 1, characterized in that: the main shaft (6) is of a hollow structure and can be used for laying lines.

5. The sludge dewatering apparatus according to claim 1, characterized in that: the surface of the extrusion roller (9) is of a threaded structure, an electric heating wire (16) is arranged in the extrusion roller (9), and a power supply circuit of the electric heating wire (16) penetrates through the main shaft (6) to be connected with an external power supply.