CN213202789U

CN213202789U - Sludge secondary dewatering device

Info

Publication number: CN213202789U
Application number: CN202021924677.1U
Authority: CN
Inventors: 冯小慧
Original assignee: Guangdong Licheng Environmental Technology Co ltd
Current assignee: Guangdong Licheng Environmental Technology Co ltd
Priority date: 2020-09-05
Filing date: 2020-09-05
Publication date: 2021-05-14
Anticipated expiration: 2030-09-05

Abstract

The utility model discloses a secondary sludge dewatering device, which comprises a first sludge tank, a second sludge tank and a sludge conveying pipe, wherein a first motor, a first screw rod, a first helical blade and a first filter plate are arranged in the first sludge tank, the first filter plate is arranged in the first sludge tank and divides the first sludge tank into a first dewatering cavity and a first sewage cavity, and the first motor and the first screw rod are both arranged in the first dewatering cavity; a second motor, a second screw rod, a second helical blade and a second filter plate are arranged in the second sludge tank, the second filter plate is arranged in the second sludge tank and divides the second sludge tank into a second dehydration cavity and a second sewage cavity, and the second motor and the second screw rod are both arranged in the second dehydration cavity; the first dehydration cavity is communicated with the second dehydration cavity through a sludge conveying pipe. The utility model discloses the first helical blade of accessible and second helical blade rotate and dewater and carry in proper order, improve sludge treatment efficiency.

Description

Sludge secondary dewatering device

Technical Field

The utility model relates to a sludge treatment equipment technical field especially relates to a mud secondary dewatering device.

Background

At present, sludge drying is called sludge dewatering, which refers to a process of removing most of water content from sludge through the actions of percolation or evaporation and the like, and after sludge is concentrated, the water content of the sludge is further reduced by a physical method, so that the sludge is convenient to transport, pile, utilize or further treat. The existing sludge dewatering efficiency is low, and the sludge dewatering degree is not enough.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a sludge secondary dewatering device, the first helical blade of its accessible and second helical blade rotate to dewater and carry in proper order, improve sludge treatment efficiency.

The purpose of the utility model is realized by adopting the following technical scheme:

a secondary sludge dewatering device comprises a first sludge tank, a second sludge tank and a sludge conveying pipe, wherein a first motor, a first screw rod, a first helical blade and a first filter plate are arranged in the first sludge tank, the first filter plate is arranged in the first sludge tank and divides the first sludge tank into a first dewatering cavity and a first sewage cavity, the first motor and the first screw rod are both arranged in the first dewatering cavity, the first screw rod is connected with a rotating shaft of the first motor, and the first helical blade is arranged outside the first screw rod and extends spirally along the axial direction of the first screw rod; a second motor, a second screw rod, a second helical blade and a second filter plate are arranged in the second sludge tank, the second filter plate is arranged in the second sludge tank and divides the second sludge tank into a second dehydration cavity and a second sewage cavity, the second motor and the second screw rod are both arranged in the second dehydration cavity, the second screw rod is connected with a rotating shaft of the second motor, and the second helical blade is arranged outside the second screw rod and extends spirally along the axial direction of the second screw rod; the first dehydration cavity is communicated with the second dehydration cavity through a sludge conveying pipe.

Preferably, the first filter plate is gradually inclined towards the sludge conveying pipe from top to bottom; the second filter is towards keeping away from the slope of mud conveyer pipe gradually from top to bottom.

Preferably, this mud secondary dewatering device still includes the heating cabinet, be equipped with the heating pipe in the heating cabinet, the heating cabinet passes through the heat-transfer pipe intercommunication with first sludge tank.

Preferably, a partition board is arranged on the heating box and is blocked between the heat conveying pipe and the side part of the heating box; the partition is slidably installed at a side of the heating compartment and serves to open or close the heating compartment.

Preferably, the secondary sludge dewatering device further comprises a reactant tank, and the reactant tank is communicated with the first sewage cavity or the second sewage cavity through an introducing pipe.

Compared with the prior art, the beneficial effects of the utility model reside in that: sludge can enter a first sludge tank, a first spiral rod rotates under the drive of a first motor and drives the sludge to be extruded along a first spiral blade and spin-dried for dehydration, and the dehydrated sewage is filtered into a first sewage cavity through a first filter plate; and the mud through prefilter can be through the leading-in second mud intracavity of mud pipeline, and under the drive of second motor, the second hob rotates to drive mud and extrude and spin-dry the dehydration along second helical blade, the sewage of deviating from filters the second sewage intracavity through the second filter, and the mud of secondary dehydration can discharge under second helical blade's squeezing action, so, dehydration efficiency is higher, and dewatering effect is better.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention.

In the figure: 10. a first sludge tank; 11. a sludge inlet; 12. a first sewage outlet; 13. a first filter plate; 20. a second sludge tank; 21. a sludge outlet; 22. a second sewage outlet; 23. a second filter plate; 30. a sludge conveying pipeline; 40. a heating box; 41. heating a tube; 42. a partition plate; 43. a heat transfer pipe; 50. a reactant tank; 60. a first motor; 70. a first helical blade; 71. a first screw rod; 80. a second motor; 90. a second helical blade; 91. a second screw rod.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments:

as shown in fig. 1 and 2, the secondary sludge dewatering device comprises a first sludge tank 10, a second sludge tank 20 and a sludge conveying pipe, wherein a first motor 60, a first screw rod 71, a first helical blade 70 and a first filter plate 13 are arranged in the first sludge tank 10, the first filter plate 13 is arranged in the first sludge tank 10, and the first sludge tank 10 is divided into a first dewatering chamber and a first sewage chamber by the first filter plate 13. The first motor 60 and the first screw rod 71 are both installed in the first dewatering cavity, the first screw rod 71 is connected with the rotating shaft of the first motor 60, the first helical blade 70 is installed outside the first screw rod 71, and the first helical blade 70 can extend helically along the axial direction of the first screw rod 71.

In addition, a second motor 80, a second screw rod 91, a second helical blade 90 and a second filter plate 23 are arranged in the second sludge tank 20, the second filter plate 23 is arranged in the second sludge tank 20, and the second filter plate 23 divides the second sludge tank 20 into a second dehydration chamber and a second sewage chamber. The second motor 80 and the second screw rod 91 are both arranged in the second dehydration cavity, the second screw rod 91 is connected with the rotating shaft of the second motor 80, and the second helical blade 90 is arranged outside the second screw rod 91 and extends spirally along the axial direction of the second screw rod 91; the first dehydration cavity is communicated with the second dehydration cavity through a sludge conveying pipe.

The top end of the first sludge tank 10 may be provided with a sludge inlet 11, and the bottom end of the first sludge tank 10 may be provided with a first sewage outlet 12. The top end of the second sludge tank 20 is provided with a sludge outlet 21, and the bottom end of the second sludge tank 20 is provided with a second sewage outlet 22.

On the basis of the structure, use the utility model discloses a during mud secondary dewatering device, treat that the mud of dehydration can be through the leading-in first dehydration intracavity of sludge import 11, start first motor 60, first motor 60's pivot is rotated and is driven first hob 71 and rotate, first hob 71 rotates and can drive first helical blade 70 and rotate, first helical blade 70 spiral rotation can be followed to mud, mud is along first helical blade 70 pivoted in-process, can dewater and carry under the effect of centrifugal force, extrude and spin-dry the dehydration, the sewage of deviating from filters first sewage intracavity through first filter 13, the sewage in first sewage chamber can be derived through first sewage export 12.

And the mud through preliminary filtration can be through the leading-in second mud intracavity of mud pipeline 30, under the drive of second motor 80, second hob 91 rotates to drive mud and extrude and spin-dry along second helical blade 90 and dewater, and the sewage of deviating from filters the second sewage intracavity through second filter 23, and the mud of secondary dehydration can be discharged through mud export 21 under the extrusion of second helical blade 90, and the sewage in second sewage chamber then can be led out through second sewage export 22.

So, mud is extruded and is dehydrated in lasting transportation process, can carry out sewage transport, can carry out the dehydration mummification again, and dehydration efficiency is higher, and dewatering effect is better.

Further, the first filter plate 13 is inclined from top to bottom toward the sludge conveying pipe, that is, the sludge extruded and dewatered by the first helical blade 70 can fall to the first filter plate 13, and is guided to the sludge conveying pipe 30 by the inclined direction of the first filter plate 13, and is guided into the second dewatering chamber by the sludge conveying pipe 30, so that the sludge is prevented from being accumulated on the first filter plate 13.

Similarly, the second filter plate 23 is inclined from top to bottom gradually towards the sludge delivery pipe, and the sludge entering the second dewatering chamber can be discharged from the sludge outlet 21 through the second filter plate 23, so that the sludge accumulation is prevented.

In this embodiment, the secondary sludge dewatering device further includes a heating box 40, a heating pipe 41 may be disposed in the heating box 40, and the heating box 40 is communicated with the first sludge tank 10 through a heat transfer pipe 43. So, at the sludge dewatering in-process, heating pipe 41 in the accessible heating cabinet 40 generates heat, produces hot-air, produces in hot-air can the leading-in first sludge tank 10 of hot conveyer pipe 43, heats the mummification to the mud of spiral dehydration, improves the mummification efficiency of mud, and dehydration efficiency is higher.

Further, a partition plate 42 may be provided on the heating box 40, an opening may be provided on a side portion of the heating box 40, and the partition plate 42 may be slidably installed in the opening to block the partition plate 42 between the heat transport pipe 43 and the opening on the side portion of the heating box 40. The partition 42 is slidably installed at a side of the heating compartment 40 to open or close the heating compartment 40.

Therefore, after the temperature in the first dehydration chamber is stabilized, the partition plate 42 can be closed to stop the heating operation of the heating pipe 41, so as to prevent the steam in the dehydration process from flowing back into the heating box 40 to affect the heating pipe 41.

More specifically, this mud secondary dewatering device still includes reactant tank 50, and reactant tank 50 switches on through the induction pipe with first sewage chamber or second sewage chamber, so can add the flocculating agent in reactant tank 50, and the leading-in pipe of flocculating agent accessible is leading-in first sewage chamber and second sewage chamber, carries out further flocculation to sewage and handles, and sewage treatment effect is better.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.

Claims

1. A secondary sludge dewatering device is characterized by comprising a first sludge tank, a second sludge tank and a sludge conveying pipe, wherein a first motor, a first screw rod, a first screw blade and a first filter plate are arranged in the first sludge tank, the first filter plate is arranged in the first sludge tank and divides the first sludge tank into a first dewatering cavity and a first sewage cavity, the first motor and the first screw rod are both arranged in the first dewatering cavity, the first screw rod is connected with a rotating shaft of the first motor, and the first screw blade is arranged outside the first screw rod and spirally extends along the axial direction of the first screw rod; a second motor, a second screw rod, a second helical blade and a second filter plate are arranged in the second sludge tank, the second filter plate is arranged in the second sludge tank and divides the second sludge tank into a second dehydration cavity and a second sewage cavity, the second motor and the second screw rod are both arranged in the second dehydration cavity, the second screw rod is connected with a rotating shaft of the second motor, and the second helical blade is arranged outside the second screw rod and extends spirally along the axial direction of the second screw rod; the first dehydration cavity is communicated with the second dehydration cavity through a sludge conveying pipe.

2. The secondary sludge dewatering apparatus of claim 1, wherein the first filter plate is inclined from top to bottom toward the sludge conveying pipe; the second filter is towards keeping away from the slope of mud conveyer pipe gradually from top to bottom.

3. The secondary sludge dewatering device of claim 1, further comprising a heating tank, wherein heating pipes are disposed in the heating tank, and the heating tank is communicated with the first sludge tank through the heating pipes.

4. The secondary sludge dewatering device of claim 3, wherein the heating tank is provided with a partition plate which is blocked between the heat transfer pipe and the side part of the heating tank; the partition is slidably installed at a side of the heating compartment and serves to open or close the heating compartment.

5. The secondary sludge dewatering device of claim 1, further comprising a reagent tank in communication with the first wastewater chamber or the second wastewater chamber via an inlet conduit.