CN221720686U - A sludge dewatering device after sewage treatment - Google Patents

Abstract

The utility model discloses a sludge dewatering device after sewage treatment, which comprises a dewatering tank, wherein a dewatering plate is fixedly arranged in the dewatering tank, a plurality of dewatering holes are formed in the upper end face of the dewatering plate, dewatering filter cloth is fixedly arranged on the upper end face of the dewatering plate, air cylinders are fixedly arranged on the outer walls of two sides of the dewatering tank through supporting mechanisms, a lower pressing plate is fixedly arranged at the telescopic ends of the air cylinders, a plurality of slotted plates are fixedly arranged on the bottom wall of the lower pressing plate, a vacuum pump is fixedly arranged on the outer wall of the dewatering tank through a connecting mechanism, and an inlet pipe of the vacuum pump extends into the dewatering tank. According to the utility model, by arranging the components such as the air cylinder, the lower pressing plate, the grooved plate and the like, the air cylinder drives the lower pressing plate to move downwards, when the lower pressing plate moves into the dewatering box, the bottom wall of the lower pressing plate can be used for downwards paving the sludge to ensure that the thickness of the sludge is consistent, and when the sludge is downwards pressed, the lower pressing plate can also drive the grooved plate to groove the flattened sludge, so that the influence of the excessive density of the sludge on ventilation is prevented.

Description

A sludge dewatering device after sewage treatment

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a sludge dewatering device after sewage treatment.

Background Art

Sludge is an inevitable product of sewage treatment in sewage treatment plants and sewage stations. If the sludge is not properly treated and disposed of, it will directly cause secondary pollution to the water and the atmosphere after entering the environment, and will also pose a serious threat to the ecological environment and human activities.

Since the sludge is still in a liquid flow state and has a large volume after concentration or digestion, it cannot be transported and disposed of. In order to further reduce the moisture content and make the sludge moisture content as low as possible, the sludge must be dehydrated to reduce the sludge volume and facilitate transportation.

Most of the sludge dewatering devices in the prior art are rotary drying and vacuum suction. The common vacuum suction dewatering device directly pours the sludge into the dewatering device when in use. Since there is no component for spreading the sludge, it is easy for some sludge to pile up too much, resulting in too high sludge thickness, thus affecting the effect of vacuum dewatering. Therefore, it is necessary to redesign a sludge dewatering device after sewage treatment to address the above problems.

Utility Model Content

The utility model aims to solve the shortcomings in the prior art and proposes a sludge dewatering device after sewage treatment.

In order to achieve the above purpose, the utility model adopts the following technical solutions:

A sludge dewatering device after sewage treatment comprises a dewatering box, a dewatering plate is fixedly installed inside the dewatering box, a plurality of dewatering holes are opened on the upper surface of the dewatering plate, a dewatering filter cloth is fixedly installed on the upper surface of the dewatering plate, a cylinder is fixedly installed on the outer walls on both sides of the dewatering box through a supporting mechanism, a lower pressure plate is fixedly installed on the telescopic end of the cylinder, a plurality of slotted plates are fixedly installed on the bottom wall of the lower pressure plate, a vacuum pump is fixedly installed on the outer wall of the dewatering box through a connecting mechanism, an inlet pipe of the vacuum pump extends to the inside of the dewatering box, the inner bottom wall of the dewatering box is inclined, a connecting pipe connected with the inside is fixedly installed on the outer wall of the dewatering box, a plurality of supporting legs are fixedly installed on the outer bottom wall of the dewatering box, a supporting plate is fixedly installed on the end of each supporting leg, a filter box is fixedly installed on the outer bottom wall of the dewatering box through a connecting mechanism, and the end of the connecting pipe extends to the inside of the filter box.

Preferably, the support mechanism comprises a support frame fixedly mounted on the outer walls of both sides of the dehydration box, and the cylinder is fixedly mounted on the bottom wall of the support frame.

Preferably, the connection mechanism comprises a connection plate fixedly mounted on the outer wall of the dehydration box, and the vacuum pump is fixedly mounted on the upper end surface of the dehydration box.

Preferably, the connection mechanism comprises two connection rods fixedly mounted on the outer bottom wall of the dehydration box, and the ends of the two connection rods are fixedly connected to the upper end surface of the filter box.

Preferably, the outer wall of the dehydration box is provided with a cleaning opening connected to the interior, and a plug plate cooperating with the dehydration opening is slidably mounted on the outer wall of the dehydration box through two mounting frames.

Preferably, a filter plate is slidably mounted on the outer wall of the filter box through a pull-out opening, the filter plate is made of activated carbon material, and a drainage pipe connected to the interior is fixedly mounted on the outer wall of the filter box.

Beneficial effects of the utility model:

1. By setting up components such as a cylinder, a lower pressure plate and a slotted plate, the cylinder drives the lower pressure plate to move downward. When the lower pressure plate moves to the inside of the dehydration box, the bottom wall of the lower pressure plate can press down and flatten the sludge to make it of uniform thickness. When pressing down, the lower pressure plate can also drive the slotted plate to slot the flattened sludge, thereby preventing the sludge density from being too high to affect ventilation.

2. By setting up components such as connecting pipes, filter boxes and filter plates, the absorbed water can be condensed inside the dehydration box and flow out to the filter box through the connecting pipe. The water can be filtered through the filter plate inside the filter box, thereby increasing the purity of the water and facilitating its recycling.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of a sludge dewatering device after sewage treatment proposed by the utility model;

FIG2 is a schematic diagram of the vertical cross-section structure of FIG1 ;

FIG3 is a side view schematic diagram of a sludge dewatering device after sewage treatment proposed by the utility model;

FIG4 is an enlarged schematic diagram of the structure at point A in FIG1 ;

FIG. 5 is an enlarged schematic diagram of the structure at point B in FIG. 2 .

In the figure: 1 dehydration box, 2 dehydration plate, 3 dehydration filter cloth, 4 support frame, 5 cylinder, 6 lower pressure plate, 7 slotted plate, 8 installation frame, 9 plug plate, 10 connecting plate, 11 vacuum pump, 12 connecting pipe, 13 support leg, 14 support plate, 15 connecting rod, 16 filter box, 17 filter plate, 18 drain pipe.

DETAILED DESCRIPTION

The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

Referring to Figures 1-5, a sludge dewatering device after sewage treatment includes a dewatering box 1, a dewatering plate 2 is fixedly installed inside the dewatering box 1, a plurality of dewatering holes are opened on the upper end surface of the dewatering plate 2, a dewatering filter cloth 3 is fixedly installed on the upper end surface of the dewatering plate 2, and the dewatering filter cloth 3 is made of polyester fiber. The polyester fiber filter cloth has good acid and alkali resistance and wear resistance, and is suitable for treating some corrosive media with low pH value. In addition, it has high filtration efficiency and good temperature resistance. The outer walls on both sides of the dewatering box 1 are fixedly installed with cylinders 5 through a supporting mechanism. The supporting mechanism includes a fixed installation A support frame 4 is installed on the outer walls of both sides of the dehydration box 1, and a cylinder 5 is fixedly installed on the bottom wall of the support frame 4. A lower pressure plate 6 is fixedly installed on the telescopic end of the cylinder 5, and a plurality of slotted plates 7 are fixedly installed on the bottom wall of the lower pressure plate 6. A cleaning opening connected to the interior is opened on the outer wall of the dehydration box 1, and a plug plate 9 matching the dehydration opening is slidably installed on the outer wall of the dehydration box 1 through two installation frames 8. A vacuum pump 11 is fixedly installed on the outer wall of the dehydration box 1 through a connecting mechanism. The connecting mechanism includes a connecting plate 10 fixedly installed on the outer wall of the dehydration box 1, and the vacuum pump 11 is fixedly installed on the upper end surface of the dehydration box 1.

The inlet pipe of the vacuum pump 11 extends to the interior of the dehydration box 1. The inner bottom wall of the dehydration box 1 is inclined. A connecting pipe 12 communicating with the interior is fixedly installed on the outer wall of the dehydration box 1. A plurality of supporting legs 13 are fixedly installed on the outer bottom wall of the dehydration box 1. A supporting plate 14 is fixedly installed at the end of each supporting leg 13. The cooperation between the supporting legs 13 and the supporting plate 14 can increase the stability of the dehydration box 1 during placement and use. A filter box 16 is fixedly installed on the outer bottom wall of the dehydration box 1 through a connecting mechanism. The connecting mechanism includes two connecting rods fixedly installed on the outer bottom wall of the dehydration box 1 15. The ends of the two connecting rods 15 are fixedly connected to the upper end surface of the filter box 16. The end of the connecting pipe 12 extends to the inside of the filter box 16. The outer wall of the filter box 16 is slidably installed with a filter plate 17 through a pull-out opening. The filter plate 17 is an activated carbon material. The principle of activated carbon water purification is to use the adsorption properties of activated carbon to remove pollutants in water. Activated carbon is a porous material with a very large surface area and can adsorb organic matter, odor, pigment, heavy metal ions, etc. in water. The outer wall of the filter box 16 is fixedly installed with a drain pipe 18 connected to the inside.

When the utility model is used, the sludge is poured into the dehydration box 1 so that it is on the upper end surface of the dehydration filter cloth 3, and then the cylinder 5 drives the lower pressure plate 6 to move downward. When the lower pressure plate 6 moves to the inside of the dehydration box 1, the bottom wall of the lower pressure plate 6 can press down and flatten the sludge to make it of uniform thickness, and when pressing down, the lower pressure plate 6 can also drive the slotting plate 7 to slot the flattened sludge, thereby preventing the sludge density from being too large to affect ventilation. Then the vacuum pump 11 is started to form a negative pressure inside the dehydration box 1. The suction force generated by the negative pressure can suck the moisture in the sludge out of the multiple dehydration holes through the dehydration filter cloth 3. While absorbing the moisture, the slots opened by the slotting plate 7 can ensure that air flows from the surface of the sludge, thereby completing the dehydration of the sludge.

When the sludge is dehydrated, the plug plate 9 can be moved to pull it out of the two mounting frames 8, and then the dehydrated sludge can be cleaned out from the inside of the dehydration box 1 through the cleaning opening. The absorbed water can condense inside the dehydration box 1 and flow out to the inside of the filter box 16 through the connecting pipe 12. The water can be filtered through the filter plate 17 inside the filter box 16, thereby increasing the purity of the water and facilitating its recycling. The filtered water can flow out of the filter box 16 through the drain pipe 18. After the filter plate 17 has been used for a long time, it can be taken out of the filter box 16 through the pull-out opening to facilitate its cleaning or replacement, thereby ensuring the filtration and purification of the water.

The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims (6)

1. A sludge dewatering device after sewage treatment, characterized in that it comprises a dewatering box (1), a dewatering plate (2) is fixedly installed inside the dewatering box (1), a plurality of dewatering holes are opened on the upper end surface of the dewatering plate (2), a dewatering filter cloth (3) is fixedly installed on the upper end surface of the dewatering plate (2), a cylinder (5) is fixedly installed on the outer walls of both sides of the dewatering box (1) through a supporting mechanism, a lower pressure plate (6) is fixedly installed on the telescopic end of the cylinder (5), a plurality of slotted plates (7) are fixedly installed on the bottom wall of the lower pressure plate (6), and the outer wall of the dewatering box (1) is fixedly installed through a connecting mechanism A vacuum pump (11) is fixedly installed, and the inlet pipe of the vacuum pump (11) extends to the interior of the dehydration box (1). The inner bottom wall of the dehydration box (1) is inclined. A connecting pipe (12) communicating with the interior is fixedly installed on the outer wall of the dehydration box (1). A plurality of supporting legs (13) are fixedly installed on the outer bottom wall of the dehydration box (1), and a supporting plate (14) is fixedly installed at the end of each supporting leg (13). A filter box (16) is fixedly installed on the outer bottom wall of the dehydration box (1) via a connecting mechanism, and the end of the connecting pipe (12) extends to the interior of the filter box (16). 2. A sludge dewatering device after sewage treatment according to claim 1, characterized in that the support mechanism comprises a support frame (4) fixedly mounted on the outer walls of both sides of the dewatering box (1), and the cylinder (5) is fixedly mounted on the bottom wall of the support frame (4). 3. A sludge dewatering device after sewage treatment according to claim 2, characterized in that the connection mechanism includes a connection plate (10) fixedly mounted on the outer wall of the dewatering box (1), and the vacuum pump (11) is fixedly mounted on the upper end surface of the dewatering box (1). 4. A sludge dewatering device after sewage treatment according to claim 3, characterized in that the connecting mechanism comprises two connecting rods (15) fixedly mounted on the outer bottom wall of the dewatering box (1), and the ends of the two connecting rods (15) are fixedly connected to the upper end surface of the filter box (16). 5. A sludge dewatering device after sewage treatment according to claim 4, characterized in that the outer wall of the dewatering box (1) is provided with a cleaning opening connected to the interior, and the outer wall of the dewatering box (1) is slidably mounted with a plug plate (9) that cooperates with the dewatering opening through two mounting frames (8). 6. A sludge dewatering device after sewage treatment according to claim 5, characterized in that a filter plate (17) is slidably mounted on the outer wall of the filter box (16) through a pull-out opening, the filter plate (17) is made of activated carbon material, and a drainage pipe (18) connected to the interior is fixedly mounted on the outer wall of the filter box (16).