CN212504536U - High-efficient energy-saving stacked spiral sludge dewatering machine - Google Patents

Abstract

The utility model relates to a high-efficiency energy-saving stacked screw sludge dewatering machine, which comprises a stirring machine (4) and a mud-water separator (5) which are connected, wherein the lower part of the mud-water separator (5) is connected with a filtrate tank (9) and a liquid discharge pipe (9 a), the front part of the stirring machine (4) is connected with a pre-feeding sewage tank (15), the bottom of the pre-feeding sewage tank (15) is connected with a sewage inlet pipe (16) and a return pipe (17), the two sides of the pre-feeding sewage tank are respectively connected with a dosing pipe (19) and a spray pipe (20), the dosing pipe (19) is provided with a metering valve (21), and the spray pipe (20) is provided with a; a liquid level meter (23) which is mutually matched with the sewage inlet pump (18) is arranged in the stirrer (4), the filtrate tank (9) is designed into an inverted triangle, and a liquid discharge pipe (9 a) is connected at the lowest part of the filtrate tank (9). The utility model has the advantages that intelligent control sewage flow avoids mud to spill over, reduces the backward flow volume of advancing dirty incasement, recycle, energy-efficient.

Description

High-efficient energy-saving stacked spiral sludge dewatering machine

Technical Field

The utility model belongs to the technical field of fold spiral shell formula sludge dewaterer technique and specifically relates to a high-efficient energy-conserving fold spiral shell formula sludge dewaterer.

Background

A spiral shell stacking type sludge dewatering machine, called a spiral shell stacking machine for short, is mainly applied to the fields of sludge dewatering and other industrial process dewatering, and the main structure of the spiral shell stacking type sludge dewatering machine is composed of a spiral shaft with gradually changed screw pitch and a filter screen formed by mutually stacking a static ring and a movable ring, wherein the spiral shaft penetrates through the static ring and the movable ring, and the spiral shaft generates strong extrusion force due to the change of the screw pitch and generates a tiny gap between the movable ring and the static ring, so that the sludge-water separation is completed.

The specific working principle of the screw stacking machine is that when the spiral pushing shaft rotates, multiple fixed and movable lamination sheets arranged on the periphery of the pushing shaft move relatively, and water is filtered out from the lamination sheet gaps moving relatively under the action of gravity, so that rapid concentration is realized; the concentrated sludge continuously moves forwards along with the rotation of the spiral shaft, the pitch of the spiral shaft is gradually reduced along the outlet direction of the sludge cake, the gap between the rings is also gradually reduced, and the volume of the spiral cavity is continuously contracted; under the action of the outlet back pressure plate, the internal pressure is gradually increased, and under the pushing of the spiral pushing shaft in sequential continuous operation, the water in the sludge is extruded and discharged, so that the continuous dehydration of the sludge is finally realized.

However, in the use of the existing screw stacking machine, because the amount of the slurry conveyed by the screw stacking machine is larger or the volume of the slurry is larger, the power and the processing capacity of rear-end equipment are lower, particularly, the phenomenon of sludge overflow often exists in the dehydration process, and the phenomenon cannot be solved for a long time, so that the rear-end equipment is damaged, the maintenance rate of the equipment is increased, the production efficiency is reduced, and the production cost is increased; meanwhile, odor cannot be effectively inhibited in the sewage treatment process, a comfortable working environment cannot be created, and the production efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose is exactly in order to solve the current problem that the spiral shell machine mud spills over, efficiency low energy consumption is high of folding, provides a spiral shell formula sludge dewaterer of high-efficient energy-conservation, and intelligent control sewage flow avoids mud to spill over, reduces the backward flow volume of advancing dirty incasement, improves treatment effeciency, reduces the energy consumption.

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

an efficient energy-saving stacked spiral sludge dewatering machine comprises a group of first brackets and second brackets which are fixed on the ground, a stirrer and a mud-water separator are respectively connected on the sludge-water separator, the stirrer and the mud-water separator are connected through a group of sludge conveying pipes, the upper part of the stirrer is provided with a stirring motor connected with the inner stirring shaft, the side surface is provided with an electric control cabinet, the lower part of the mud-water separator is connected with an obliquely arranged filtrate tank, the bottom of the filtrate tank is connected with a liquid discharge pipe, a mud-water separation area is arranged in the mud-water separator, a mud discharge cavity is arranged on the mud-water separator on one side of the mud-water separation area, a group of springs and a back pressure plate connected with the springs are connected in the mud discharge cavity, a pair of dewatering motors are arranged on the mud-water separator on one side of the mud discharge cavity, and the lower part of the mud discharge cavity is connected with an oblique mud cake outlet;

the front part of the stirrer is connected with a pre-sewage inlet tank, the bottom of the pre-sewage inlet tank is connected with a sewage inlet pipe connected with a sewage inlet pump and a return pipe connected with a liquid discharge pipe, two sides of the pre-sewage inlet tank are respectively connected with a dosing pipe and a spraying pipe, the dosing pipe is provided with a metering valve used for controlling the dosage of the medicament, and the spraying pipe is provided with a spraying electromagnetic valve used for recycling separated filtrate of a mud-water separator;

the stirrer is internally provided with a liquid level meter which is connected with an external controller through a signal transmission line, and the external controller is connected with the sewage inlet pump so as to control the frequency of the sewage inlet pump through data collected by the liquid level meter;

the filter liquor box of the mud-water separator is designed into an inverted triangle, and the liquid discharge pipe is connected to the lowest position of the filter liquor box so as to ensure that filtrate cannot be deposited in the filter liquor box and can be recycled fully.

Furthermore, the lower part of the stirrer is connected with an emptying pipe, and the emptying pipe is connected with an emptying electromagnetic valve.

Furthermore, a feeding valve is connected to the sludge conveying pipe.

Furthermore, the outside cover of mud-water separator is equipped with the sealed deodorization apron of one deck, and the deodorization apron is set up just facing the mud-water separation district to be used for avoiding giving off, building more comfortable operational environment from the smell of mud-water separation district.

In the technical scheme of the utility model, through setting up the level gauge of high, medium and low three liquid levels in the agitator tank, the sludge pump adopts frequency conversion control, through the frequency size of level gauge feedback regulation sludge pump, the flow is the biggest during low liquid level, and the flow reduces during medium liquid level, stops into sewage during high liquid level to avoid mud to spill over, reduce the backward flow volume in the dirty incasement of intaking, realize high-efficient energy-conservation; meanwhile, the filtrate collected in the mud-water separator can flow back to the front end of the equipment to be used as water for spraying. The utility model discloses a device is with low costs, take up an area of less, efficient, has improved life, has reduced the work load of installation and maintenance, can realize the centralized processing of mud and filtrating.

Drawings

FIG. 1 is a front view of the high-efficiency energy-saving stacked sludge dewatering machine of the present invention;

FIG. 2 is a side view of the high-efficiency energy-saving stacked sludge dewatering machine of the present invention;

fig. 3 is a top view of the high-efficiency energy-saving stacked screw type sludge dewatering machine of the utility model.

Detailed Description

Example 1

In order to make the present invention more clearly understood, the following description is made with reference to the accompanying drawings, and the specific embodiments described herein are only used for explaining the present invention, and are not used for limiting the present invention.

Referring to fig. 1, 2 and 3, a high-efficiency energy-saving stacked screw sludge dewatering machine comprises a first support 2 and a second support 3, both of which are fixed on the ground 1 through bolts 28, the first support 2 is connected with a stirring machine 4, the second support 3 is connected with a sludge-water separator 5, the stirring machine 4 is connected with the sludge-water separator 5 through a set of sludge conveying pipes 6, the upper part of the stirring machine 4 is provided with a stirring motor 7 connected with an internal stirring shaft, the side surface is provided with an electric control cabinet 8, the lower part of the sludge-water separator 5 is connected with an obliquely arranged filtrate tank 9, the bottom of the filtrate tank 9 is connected with a liquid discharge pipe 9a, the sludge-water separator 5 is internally provided with a separation area 5a, the sludge-water separator 5 at one side of the sludge-water separation area 5a is connected with a sludge discharge chamber 10, the sludge discharge chamber 10 is internally provided with a set of springs 11 and a back pressure plate 12, the mud-water separator 5 positioned on one side of the mud discharging cavity 10 is provided with a pair of dewatering motors 13, the lower part of the mud discharging cavity 10 is connected with an inclined mud cake outlet 14, and the mud-water separator is characterized in that:

the front part of the stirrer 4 is connected with a pre-sewage inlet box 15, the bottom of the pre-sewage inlet box 15 is connected with a sewage inlet pipe 16 connected with a sewage inlet pump 18 and a return pipe 17 connected with a liquid discharge pipe 9a, two sides of the pre-sewage inlet box 15 are respectively connected with a chemical feeding pipe 19 and a spraying pipe 20, the chemical feeding pipe 19 is provided with a metering valve 21 for controlling the dosage of chemicals, and the spraying pipe 20 is provided with a spraying electromagnetic valve 22 for recycling separated filtrate of a mud-water separator;

a vertical liquid level meter 23 is arranged in the stirrer 4, the liquid level meter 23 is connected with an external controller through a signal transmission line, and the external controller is connected with the sewage inlet pump 18 and is used for controlling the frequency of the sewage inlet pump through data collected by the liquid level meter;

the lower part of the stirrer 4 is connected with an emptying pipe 24, and the emptying pipe 24 is connected with an emptying electromagnetic valve 25 for preventing air exhaust at regular time and slowly releasing internal pressure;

the filtrate tank 9 of the mud-water separator 5 is designed into an inverted triangle, and the liquid discharge pipe 9a is connected to the lowest part of the filtrate tank 9 so as to ensure that filtrate is not deposited in the filtrate tank and can be fully recycled;

a layer of sealed deodorization cover plate 26 is sleeved outside the mud-water separator 5, and the deodorization cover plate 26 is arranged right opposite to the mud-water separation area 5a so as to prevent odor from diffusing from the mud-water separation area and create a more comfortable working environment;

the sludge conveying pipe 6 is connected with a feeding valve 27.

In the utility model, the sludge enters the pre-sewage-feeding box 15 from the sewage-feeding pipe 16 through the sludge pump 18 by frequency conversion regulation, the medicament enters the pre-sewage-feeding box 15 through the chemical-feeding pipe 19, premixing the sludge in a pre-sewage-feeding box 15, then feeding the sludge into a stirring box 4 of the sludge medicament through a square hole, forming flowers after being fully stirred by a stirring motor 7, further entering a mud-water separation zone 5a of a mud-water separator 5 through a sludge conveying pipe 6 for mud-water separation, discharging the separated filtrate into a filtrate tank 9 below, the sludge flows to the front section of the system through a liquid discharge pipe 9a to be recycled, the discharged sludge enters a sludge discharge cavity 10, a back pressure plate 12 is extruded through a spring 11 to extrude the sludge into a filter cake, the filter cake is discharged outside through a sludge cake outlet 14, redundant mud-water mixture flows back to the front section of the system through a return pipe 17 to be recycled, and finally clean water is sprayed out through a spray pipe 20 to clean the whole system;

in addition, the dosing pipe 19 is provided with a metering valve 21 which can control the amount of the chemicals to be introduced, and the chemicals are filled into the pre-sewage inlet box 15 to ensure that the sludge can be better condensed and is convenient to treat;

an emptying electromagnetic valve 25 is arranged on the emptying pipe 24, and emptying is started after the whole system is operated to prolong the service life of the whole set of equipment;

set up level gauge 23 of three liquid level of high-middle-low in agitator tank 4, sludge pump 18 adopts frequency conversion control, through level gauge 23 with data feedback to outside controller, thereby sludge pump 18's frequency size is adjusted to the controller, the flow is the biggest during low liquid level, the flow reduces during well liquid level, stop into sewage during the high liquid level, utilize simultaneously advance dirty case 15 to carry out the preliminary treatment to mud, then discharge into in the mixer 4 again, thereby avoided mud to spill over, reduce into the flow of returning in the dirty incasement, realize high efficiency and energy saving.

The utility model discloses a device is with low costs, take up an area of less, efficient, has improved life, has reduced the work load of installation and maintenance, can realize the centralized processing of mud and filtrating.

In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.

Claims (4)

1. The utility model provides a high-efficient energy-conserving spiral shell formula sludge dewaterer that folds, includes a mixer (4) and a mud-water separator (5), links to each other through a set of sludge conveying pipe (6) between the two, and the lower part of mud-water separator (5) even has filtrate box (9) that an slope set up, and a fluid-discharge tube (9 a), its characterized in that are connected to the bottom of filtrate box (9):

the front part of the stirrer (4) is connected with a pre-sewage-feeding tank (15), the bottom of the pre-sewage-feeding tank (15) is connected with a sewage-feeding pipe (16) and a return pipe (17) connected with a liquid discharge pipe (9 a), the sewage-feeding pipe (16) is connected with a sewage-feeding pump (18), two sides of the pre-sewage-feeding tank (15) are respectively connected with a medicine-feeding pipe (19) and a spraying pipe (20), the medicine-feeding pipe (19) is provided with a metering valve (21), and the spraying pipe (20) is provided with a spraying electromagnetic valve (22);

a liquid level meter (23) connected with an external controller is arranged in the stirrer (4), and the liquid level meter (23) is matched with the sewage inlet pump (18);

a filtrate tank (9) of the mud-water separator (5) is designed into an inverted triangle, and a drain pipe (9 a) is connected to the lowest part of the filtrate tank (9).

2. The efficient energy-saving stacked screw type sludge dewatering machine according to claim 1, characterized in that:

the lower part of the stirrer (4) is connected with an emptying pipe (24), and the emptying pipe (24) is connected with an emptying electromagnetic valve (25).

3. The efficient energy-saving stacked screw sludge dewatering machine according to claim 1 or 2, characterized in that:

the outside of the mud-water separator (5) is sleeved with a layer of sealed deodorization cover plate (26), and the deodorization cover plate (26) is arranged right opposite to the mud-water separation area (5 a).

4. The efficient energy-saving stacked screw sludge dewatering machine according to claim 1 or 2, characterized in that:

the sludge conveying pipe (6) is connected with a feeding valve (27).

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