KR101936065B1 - Sludge Dehydration Equipment System Enhanced Efficiency Using Cohesion Mixing Tank - Google Patents

Abstract

A dehydration device system of the present invention comprises: a flocculation mixing tank; a flocculant supplying unit; a sludge inlet unit; an organic flocculant charging unit; a rapid agitation unit; and a slow agitation unit. According to the dehydration system of the present invention, a problem of flocculated sludge being broken at the beginning of a dehydration device and a problem of leakage are solved by installing an inflow pipe, thereby enhancing dehydration efficiency.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a sludge dehydration equipment system having enhanced efficiency of cohesion mixing tank,

More particularly, the present invention relates to a sludge dewatering system for increasing the dewatering efficiency using an agglomerate mixing tank, and more particularly, to a sludge dewatering system for sludge dewatering system, comprising a sludge inlet, a sludge inlet, An agglomeration tank for making dewatered flocculated sludge by introducing a coagulant to be used for separating water from the sludge into a coagulation admixture tank having a slow stirring portion and dewatering by means of a dewatering device provided with an inlet pipe and a main shaft bearing housing portion To increase the dehydration efficiency of the dehydrating device.

Recently, as the amount of living sewage is rapidly increasing, the pollution problem of the surrounding environment is seriously arising, and various efforts are being made to effectively treat domestic sewage and industrial wastewater.

Generally, the physico-chemical wastewater treatment technology is used for treatment of domestic sewage and industrial wastewater containing heavy metals, and is separated from water by various chemicals or polymer flocculants, and the heavy metal-containing sludge generated at this time is dewatered The cake is dried and buried or incinerated, and the desalted liquid is processed using biological treatment and physical / chemical treatment techniques.

On the other hand, in the case of a sewage treatment plant, which is a representative facility of biological treatment methods, the BOD concentration of sewage introduced into the sewage treatment plant is increased due to the improvement of the living standard, so that the concentration of the microorganisms in the sludge becomes higher and the sedimentability of the sludge deteriorates.

In addition, since sewage pipes are replaced with sewage pipes through which sewage and sewage are separated from the pipes in which the existing stormwater and sewage are simultaneously introduced, the concentration of the inorganic solid in the sludge is reduced and the sedimentation property is lowered have.

As a result, the performance of the dewatering apparatus and the performance of the digester (sludge reducing apparatus) deteriorate due to the lowering of the concentration of the sludge in the existing sewage treatment plant in operation.

The sludge treatment system overflows the supernatant separated by the specific gravity difference between solids and liquid in the sedimentation basin and transfers the sedimented solids to the sludge reservoir through the sediment transport pipe through the sediment transporting pump.

However, when the concentration of precipitated solids is low, it may be sent to a post-sludge storage tank through a thickener.

At this time, the concentration of precipitated solid transferred to the sludge storage tank varies greatly depending on water temperature, sludge concentration, season, and number of withdrawal.

The sludge stored in the sludge storage tank is transferred to the coagulation tank through the sludge pump.

Separately, the flocculant, which is dispensed to separate water from the sludge, is dissolved in the flocculant dissolver by the flocculant stirrer and then transferred to the flocculant mix tank through the dissolved flocculant transfer pump.

The sludge and the flocculant transferred to the coagulating bath are stirred and mixed by a mixing bath stirrer, and as a result floc (flocculent) is formed.

The flock thus formed is conveyed to the dehydrating device through the flock conveying pipe and dehydrated.

The dewatering device may be a screw-type multi-disk fluid type in which a screw blade is provided therein and dewatering is performed while the flocked sludge supplied to one end is compressed and moved, A centrifugal dehydrator is used which is separated into an outer cylinder and an inner cylinder by centrifugal force to concentrate and separate the sludge and transfer the sludge due to the vehicle speed of the screw.

The multi-disc type dewatering device is a dewatering device with low power consumption, excellent durability, low speed rotation, low power and noise, and high recovery efficiency (over 99%). However, it can also be used as a concentrating device for concentrating surplus sludge and floating sludge.

The principle of the multi-disk flow dewatering system is different from that of the screw rotation speed of about 3 rpm and the multi-disk flow concentrator is about 30 rpm.

The centrifugal type dehydrator has a small number of constituent components and is less dense and odorous, and can operate unattended. However, it generates noises due to high speed rotation, consumes a large amount of power, is manufactured with high precision, It can also be used as a concentration device.

In order to ensure stable operation and automation of the dewatering device, it is necessary that the flocized sludge introduced into the dewatering device has as uniform concentration and moisture as possible in the coagulation admixture tank and has a certain strength so that the solid matter is well separated Do.

Flocs should also not break in the dehydrator.

The screw type dewatering device of the rotating ring rotating structure disclosed by Korean Patent Registration No. 10-0934578 (registered on Dec. 22, 2009) discloses a problem in that leakage occurs at the end shaft of the transfer screw, There was a problem of cracking floc sludge from the tank and leakage between the fluid ring and the stationary ring at the inlet portion.

There is a problem that the flocs formed in the coagulation admixture tank are cracked to increase the strength of the flocs and to cause the coagulation of poly iron and anionic materials and suspensions and suspended substances to be tightly aggregated to reduce the number of pores between the sludge and the sludge, It became necessary to reduce the water content.

1. Korean Patent Registration No. 10-1816693 (registered on Jan. 31, 2018) Energy saving work environment improvement screw press dewatering system 2. Korean Patent Registration No. 10-1433931 (Registration Date: Aug. 19, 2014) Sludge agglomeration, concentration and screw press dehydration system 3. Korean Patent Registration No. 10-1640941 (Date of Registration: July 13, 2016) Sludge Pipeline Coagulation Device and Sludge Treatment System 4. Korean Patent Registration No. 10-0934578 (Date of Registration: December 22, 2009) Screw-type dehydrator with rotating ring rotating structure 5. Korean Patent Registration No. 10-1259907 (Registration date: April 25, 2013) Multi-disk type sludge thickening device

In order to solve the above problems, a sludge inlet portion, an organic coagulant feed portion, a rapid stirring portion, and a slow stirring portion are provided in an aggregation admixture tank to reduce the number of pores between sludge and sludge, The present invention provides a dewatering system that increases the dewatering efficiency by using an agglomeration tank equipped with an inflow pipe for solving the problem of cracking flocized sludge at the beginning of the dewatering device and the problem of leakage.

The dewatering system according to the present invention comprises a coagulant tank in which a stabilized sludge is introduced in a sludge storage tank, a coagulant to be used for separating water from the sludge is injected into the floc sludge, An agglomeration tank in which an agglomerant is injected into the sludge to be converted into flourized sludge; A coagulant supply unit for supplying a coagulant composed of poly iron as an inorganic polymer flocculant, which is chemically reacted with an anionic material and floating matters in the sludge, and a polymer as an organic polymer flocculant; The flocculated sludge overflowed in the coagulation and mixing tank is supplied to the flexible floc supply line, and the flaked sludge is compressed and moved in the solid-liquid separation unit including the fixed ring and the floating ring, And a screw-type dewatering device in which the desorption filtrate is drained to the bottom by the swing motion of the flow ring, and the cake is discharged to the other end.

Wherein the coagulant admixture tank comprises a sludge inlet portion for introducing sludge into the lower portion of the poly-iron, and a sludge inlet portion for uniformly mixing the sludge with the poly-iron; An organic coagulant injector connected in series to the sludge inlet to share one side of the sludge inlet from a predetermined height, the sludge drawn in the sludge inlet being drawn over and the polymer injected from the top; The sludge mixed with the coagulant at the sludge inlet portion and the organic flocculant input portion is introduced at a predetermined lower height of the side surface and the sludge charged with the flocculant is rapidly stirred at a predetermined number of revolutions to separate the polyferric and anionic materials, A rapid agitator for reducing the water content of the cake in the dewatering device by reducing the pore water between the sludge and the sludge by firmly aggregating the poly-iron, the anionic material and the suspended or suspended material, The sludge agglomerated to some extent at a constant rotation speed to make the sludge into flocked sludge, and the sludge is overflowed to the upper part, And a slow stirring portion for supplying sludge flocified.

A level sensor bracket is formed on a side surface of the sludge inlet portion to provide a level sensor for measuring the level of the sludge inlet portion. The sludge is introduced into the side lower portion of the sludge inlet portion from the lower side thereof, And a sludge draw-in nozzle connected to the sludge draw-in line. The sludge draw-in nozzle is connected to the lower end of the draw-out vertical muffle. The sludge draw- A sludge supply unit for supplying a sludge to the sludge supply unit; a drain nozzle for completely discharging sludge inside the sludge supply unit; and a sludge supply unit for supplying sludge to the sludge supply unit, An overflow single pipe welded to the front face, An overflow elbow coupled to the other end of the single pipe to change an overflowing direction by 90 degrees, an overflow vertical single pipe coupled to the other end of the overflow elbow, and an overflow flange coupled to a lower end of the overflow vertical single pipe, And an overflow nozzle is formed in the sludge inlet. The inside of the overflow nozzle of the sludge inlet portion surrounds the inlet of the overflow nozzle at a predetermined height so as to overflow the overflow nozzle when a predetermined height is reached, A rosin is formed.

A V-Weir is formed at a 90-degree angle in a V-shape so that the flow rate of the sludge can be measured on one side shared by the sludge inlet portion and the organic flocculant input portion.

When the sludge charged with the poly-iron fed to the V-weir reaches a certain level, the organic coagulant is introduced into the organic coagulant input portion and is supplied to the side lower portion of the predetermined height of the rapid stirring portion. A sludge supply pipe into which the polymer is introduced at a predetermined ratio is formed.

The rapid stirring portion is provided with a rapid stirring device rotating at a predetermined rotation speed between 120 and 240 rpm in order to reduce the number of pores between the sludge and the sludge by causing the poly-iron, the anionic material, A sludge inlet hole for the sludge supply pipe of the organic coagulant input unit is formed at a lower portion of the side surface of the rapid agitating unit, and a lower portion of the opposite side surface of the sludge inlet hole has a certain height from the bottom, A lower opening portion which is moved to the stirring portion is formed.

Wherein the rapid agitation device comprises: a rapid geared motor having a reduction ratio of between 7.5 and 15: 1 and having a pole number of 4; And a rapid agitator coupled to the rapid geared motor through a coupling to rotate at a reduced rotational speed, wherein the rapid agitator includes a rapid stirring shaft coupled with the rapid geared motor through coupling; And two rapid stirring blades each of which is installed at a lower end of the rapid stirring shaft and at a predetermined height, respectively, and of a propeller type.

Wherein the slow stirring portion is provided with a slow stirring device for rotating the circulating current to a turbulent flow state so as to smoothly form flocs in the slow stirring portion and rotating at a speed varying from 10 to 60 rpm, An overflow head having a predetermined width such that the sludge can overflow; And a floc discharge unit installed at an outer lower side of the overflow head and discharging the flocculated sludge and composed of one or two or more flocked outlets, and a drain nozzle for cleaning the slow stirring unit, .

The slow stirring device includes a constant speed geared motor having a reduction ratio of 30 to 1 or 60 to 1 and having a pole number of 4; An inverter for varying the number of revolutions of the constant speed geared motor by frequency adjustment; And a slow speed stirrer coupled to the slow geared motor through a coupling and rotating at a reduced rotational speed, wherein the slow speed stirrer includes a slow speed stirring shaft coupled with the full speed geared motor by coupling; Two slow stirring blades each of which is of a paddle type having four vertical blades respectively installed at a certain height of the slow stirring shaft to make the rotating current turbulent in order to achieve floc formation smoothly; And a lower fixed disk which is inserted into the slow stirring shaft to smoothly rotate the slow stirring shaft without vibration and supports the lower portion of the slow stirring shaft and is fixedly coupled to the bottom of the slow stirring portion.

Wherein the lower fixed disk has a shaft support portion into which the slow stirring shaft is inserted in a cylindrical shape; And a disc flange welded to the outer periphery of the lower portion of the shaft support portion and ring-shaped and fixed to the bottom of the slow stirring portion, the shaft support portion having a metal bushing in which the slow stirring shaft is inserted and in surface contact therewith; And a support outer cylinder into which the metal bush is inserted and is engaged with the disk flange.

The dewatering device includes a screw blade having a screw vane installed at a predetermined rotation speed to rotate the sludge forward when the flocked sludge is flocculated and solidified, And a screw main shaft having a double shaft structure having eccentric shafts at both ends of the main shaft, respectively; The sludge flocized by the rotation of the feed screw part is dehydrated while being concentrated by the rotation of the feed screw part, and the desorption filtrate from which the slurry is separated is discharged downward by the swing of the flow ring due to eccentric motion of the eccentric shaft Liquid separator; And an inflow pipe which is provided at a front end of the solid-liquid separating unit and is connected to the inflow portion fixing plate, stabilizes and re-coagulates the sludge having a part of flocking broken while being drawn into the dehydration apparatus, and has a predetermined length.

The solid-liquid separating portion is fixed in a fixed interval by being coupled to three fixing bars, both ends of which are rotated in the inside of the conveying screw portion and fixed to the inlet portion fixing plate and the outlet portion fixing plate, and is formed in a thin ring- A plurality of fixing rings formed with three fixing bar fastening ribs to be fastened to the fixing bar and including spacers which are spaced apart from each other; Wherein the conveying screw portion is rotated inside and is provided between the stationary ring and the stationary ring, each of the eccentric axial end portions is engaged, two eccentric drive plates which are rotated by the rotation of the eccentric shaft and provided with eccentric bearings, And a plurality of fluid rings mounted between the three fluid coaxially connected to each other and rotated by the rotation of the screw spindle, the fluid ring being in the shape of a thin ring and being swung and rotated by the flow of the fluid axis.

The main shaft is provided with a main shaft at its front end to smoothly rotate the feed screw to prevent vibration to increase the sludge recovery rate by causing the swinging of the fluid ring to have a constant pattern and to prevent sludge and moisture from leaking to the outside, A bearing housing portion is provided.

The problem to be solved by the present invention can be solved by the dewatering device system described above.

According to the dewatering device system in which the dewatering efficiency is enhanced by using the flocculation tank of the present invention, the water content of the cake in the dewatering device is reduced by reducing the number of pores between the sludge and the sludge by using the flocculation tank having the rapid stirring portion, And the problem of leakage is solved by the inlet pipe installation, and the dewatering efficiency is improved. The main shaft bearing housing part is installed to prevent the vibration of the conveying screw part and operate equally to the flow ring motion due to the silent movement, Improved dewatering and recovery efficiency by 15%, improved durability from moisture and gas, and prevented wear of screw spindle, improving durability.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a layout diagram of a dehydrator system in which the dehydrating efficiency is increased by using the coagulation admixture tank of the present invention
FIG. 2 is a graph showing the P & ID of a dehydrator system in which dehydration efficiency is increased by using the flocculation tank of the present invention.
3 is a schematic front view of an agglomerated mixing tank according to a dewatering system in which the dewatering efficiency is increased by using the flocculation tank of the present invention
4 is a schematic plan view of an agglomeration tank according to a dewatering system in which the dewatering efficiency is increased by using the agglomerated tank of the present invention
5 is a side schematic view of an agglomeration and mixing tank according to a dewatering system in which the dewatering efficiency is increased by using the agglomeration tank of the present invention
FIG. 6 is a schematic view of a rapid agitation device of a rapid agitation part of a flocculation and agglomeration tank of a dewatering system in which the dehydration efficiency is increased by using the agglomeration tank of the present invention
7 is a schematic view of a slow stirring apparatus of a slow stirring portion of an agglomerated mixing tank of a dewatering system in which the dewatering efficiency is increased by using the flocculation and mixing tank of the present invention
8 is a schematic view of a lower fixed disk of a slow stirring apparatus of a slow stirring portion of an agglomerated mixing tank of a dewatering system in which the dewatering efficiency is increased by using the flocculation tank of the present invention
9 is a schematic view of a dehydrator of a dehydrator system in which the dehydration efficiency is increased by using the flocculation tank of the present invention
10 is a perspective view of a dewatering device of a dewatering system in which the dewatering efficiency is increased by using the flocculation tank of the present invention
11 is a diagram showing the entire AA section of the dehydrator of the dehydrator system in which the dehydration efficiency is increased by using the coagulating tank of the present invention
12 is a cross-sectional view of the dewatering device BB of the dewatering device system in which the dewatering efficiency is increased by using the flocculation tank of the present invention
13 is a schematic view of a conveying screw section according to a dewatering device of a dewatering system in which the dewatering efficiency is increased by using the coagulation admixture tank of the present invention
14 is a schematic view of a screw main shaft according to a conveying screw portion of a dewatering device of a dewatering system in which the dewatering efficiency is increased by using the flocculation admixture tank of the present invention
15 is a perspective view of the dewatering system of the dewatering system in which the dewatering efficiency is increased by using the flocculation tank of the invention,
16 is a schematic view of the inflow pipe according to the dewatering device of the dewatering system in which the dewatering efficiency is increased by using the flocculation tank of the invention
17 is a view showing an inlet pipe part according to a dewatering device of a dewatering system in which the dewatering efficiency is increased by using the flocculation tank of the invention
18 is a cross-sectional view of the main shaft bearing housing according to the dewatering device of the dewatering system in which the dewatering efficiency is increased by using the coagulating tank of the invention
19 is an exploded perspective view of the main shaft bearing housing part according to the dewatering device of the dewatering device system in which the dewatering efficiency is increased by using the flocculation-
20 is a schematic view of the main shaft bearing according to the main shaft bearing housing portion of the dewatering device of the dewatering device system in which the dewatering efficiency is increased by using the coagulating tank of the invention
21 is a schematic view of the main shaft bearing housing according to the main shaft bearing housing portion of the dewatering device of the dewatering system in which the dewatering efficiency is increased by using the flocculation-
FIG. 22 is a perspective view of a dewatering system according to the present invention, in which the dewatering efficiency is increased by using the coagulating tank,
23 is a schematic view of the main shaft bearing housing cover according to the main shaft bearing housing portion of the dewatering device of the dewatering system in which the dewatering efficiency is increased by using the flocculation-

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

It should be noted that the following terms are defined in consideration of the functions of the present invention, and this may vary depending on the intention or custom of the user, the operator, and the like. The definition of " coagulation "Quot; a dewatering device system " which is incorporated herein by reference in its entirety.

Hereinafter, a preferred embodiment of the " dewatering device system in which the dewatering efficiency is enhanced by using the coagulating and mixing tank " according to the present invention will be described in detail.

The following examples are merely illustrative of the present invention and are not intended to limit the scope of the present invention.

FIG. 1 is a layout diagram of a dewatering system in which the dewatering efficiency is increased by using the flocculation tank of the present invention, FIG. 2 is a P & ID of a dewatering system in which the dehydration efficiency is increased by using the flocculation tank of the present invention, FIG. 3 is a schematic front view of a flocculation and mixing tank according to a dehydration system in which dehydration efficiency is increased by using the flocculation tank of the present invention. FIG. 4 is a schematic view of a dehydration system FIG. 5 is a schematic side view of a flocculation and mixing tank according to a dehydration system in which dehydration efficiency is increased by using the flocculation and mixing tank of the present invention. FIG. 6 is a schematic view of the flocculation tank, FIG. 7 is a schematic view of a rapid agitating device of a rapid agitation part of a flocculation tank of a flocculation tank of a dewatering system in which the efficiency is enhanced. FIG. 8 is a schematic view of a lower fixed disk of a slow stirrer of a slow stirring portion of a flocculation tank of a flocculation tank of a dehydrator system in which dehydration efficiency is increased using the flocculation tank of the present invention. And FIG. 9 is a schematic view of a dewatering system of a dewatering system in which the dewatering efficiency is increased by using the flocculation and mixing tank of the present invention. FIG. 10 is a schematic view of a dewatering system FIG. 11 is a sectional AA view of the dewatering system of the dewatering system in which the dewatering efficiency is increased by using the flocculation and mixing tank of the present invention. FIG. 12 is a view showing the dewatering efficiency 13 is a view showing the dehydration apparatus of the dewatering system in which the dehydration efficiency is increased by using the coagulation tank of the present invention FIG. 14 is a schematic view of a screw main shaft according to a conveying screw portion of a dewatering device of the dewatering device system in which the dewatering efficiency is increased by using the coagulation admixture tank of the present invention. FIG. 15 is a schematic view of a screw- FIG. 16 is a schematic view of an inlet pipe according to a dewatering device of a dewatering system in which the dewatering efficiency is increased by using the coagulation admixture tank of the present invention. FIG. 16 is a schematic view of a dewatering device And FIG. 17 is a view of the inlet pipe according to the dehydrating apparatus of the dehydrating apparatus system having increased dehydrating efficiency by using the flocculation and mixing tank of the invention. FIG. 18 is a view showing a dehydrating apparatus FIG. 19 is a cross-sectional view of the main shaft bearing housing according to the dewatering system of the system. FIG. 19 is a view showing the dehydration system of the dewatering system, 20 is a schematic view of the main shaft bearing according to the main shaft bearing housing part of the dewatering device of the dewatering device system in which the dewatering efficiency is increased by using the coagulation admixture tank of the present invention. FIG. 22 is a schematic view of a main shaft bearing housing according to a main shaft bearing housing part of a dewatering device of a dewatering system using an agglomerated admixture tank. FIG. 22 is a schematic view of a dewatering device system 23 is a schematic view of the main shaft bearing housing cover according to the main shaft bearing housing part of the dewatering device of the dewatering device system in which the dewatering efficiency is increased by using the coagulation admixture tank of the present invention.

As shown in FIG. 1 and FIG. 2, the dewatering system A of the present invention transfers sludge concentrated in a sludge settling apparatus or a sludge concentration apparatus to a sludge storage tank to stabilize the sludge, 2), and a coagulant to be used for separating water from the sludge is introduced into the coagulating / mixing tank 2 into which the sludge is introduced to form a flocized sludge, and the flocized sludge is supplied and dehydrated .

)과, 유기 고분자응집제인 폴리머를 포함하는 응집제를 공급하는 응집제 공급부(1)와; 상기 응집혼화탱크(2)에서 플록화된 슬러지가 오버 플로된 것을 플렉서블한 플록공급라인(2423)으로 공급받고, 내부에 스크류날개(312)가 설치되며 고정링(321)과 유동링(323)을 포함하는 고액분리부(32)에서 플록화된 슬러지가 압축 이동되면서 상기 유동링(323)의 스윙운동으로 하부로 탈리여액이 배출되어 탈수가 이루어지고, 타단부로 케이크가 배출되는 스크류 타입의 탈수장치(3)를 포함하여 구성된다.The dewatering system (A) comprises: the coagulation tank (2) for adding flocculant to the incoming sludge to form flocized sludge; Ferric Sulfate (SBR), which is an inorganic polymer coagulant that chemically reacts with anionic substances and suspended or suspended substances in sludge to increase the floc-specific floc strength,

(1) for supplying a flocculant containing a polymer as an organic polymer flocculant; The flocked sludge overflowed in the coagulation and mixing tank 2 is supplied to the flexible flock supply line 2423 and the screw vane 312 is installed therein and the fixed ring 321 and the floating ring 323 are installed, The sludge flourized in the solid-liquid separating unit 32 is compressed and moved, the sludge is discharged by the swinging motion of the fluidizing ring 323 to the bottom, and the sludge is dewatered and the cake is discharged to the other end And a dewatering device (3).

The dewatering system A may include a cake conveying conveyor 4 for conveying a cake discharged from the dewatering device 3 and a cake discharge hopper 5 for temporarily storing and discharging the cake.

The coagulant feeder 1 comprises the poly-iron storage tank 111 for storing the poly-iron and the poly-iron from the poly-iron storage tank 111 to the coagulation- A poly-iron supply device (11) including a poly-iron supply pump (112) for supplying; A polymer dissolving apparatus 122 for dissolving the polymer stock solution in water to dilute the polymer stock solution, and a polymer solution tank for circulating the polymer solution from the polymer stock solution tank 121 to the polymer dissolving apparatus 122, And a dilute polymer feed pump 123 for feeding the diluted polymer to the coagulation and mixing tank 2 through a dilute polymer feed line.

The sludge is introduced into the coagulation and mixing tank (2) through the sludge inlet line.

Floched sludge is fed into the dehydrating device 3 from the flocculation tank 2 by means of a flexible floc supply line 2423.

As shown in FIGS. 3 to 5, the flocculation and mixing tank 2 is provided with a sludge inlet 21 for introducing sludge into the upper portion of the poly-iron, Wow; The sludge drawn in from the sludge inlet (21) flows in and flows through the sludge inlet (21) while sharing one side from a certain height to an upper end of the sludge inlet (21). The organic coagulant (22); The sludge mixed with the flocculant at the sludge inlet portion 21 and the organic flocculant input portion 22 is introduced at a predetermined lower height of the sidewall and the sludge charged with the flocculant is rapidly stirred at a predetermined number of revolutions, Thereby making the environment where the substance, suspended matter and suspended matter chemically react with each other to make the poly-iron and the anionic substance and the suspended and suspended substances hardly aggregate to reduce the pore water between the sludge and the sludge to reduce the moisture content of the cake in the dehydration apparatus A rapid stirring portion 23; The sludge is partially flocculated by the rapid agitating part 23 and is slowly stirred at a constant rotation speed to make flocculated sludge. The sludge is overflowed to the upper part, And a slow stirring section (24) for supplying flourized sludge to the dewatering device (3).

A level sensor bracket 2111 is formed on a side surface of the sludge inlet portion 21 and a level sensor 211 for measuring the level of the sludge inlet portion 21 is installed.

The sludge is drawn to the side of the sidewall of the sludge inlet 21 and drawn into the sidewall of the sludge inlet 21. The sludge inlet 2117 is connected to the sidewall of the inlet elbow 2121 and the inlet vertical pipe 2122 is welded to the other end of the inlet elbow 2121, And a suction flange 2123 coupled to the lower end of the inlet vertical single pipe 2122 to form a sludge inlet nozzle 212 coupled with the sludge inlet line.

A drain nozzle 213 for completely discharging sludge in the interior of the sludge inlet 21 is formed at the bottom of the sludge inlet 21.

The amount of sludge introduced into the sludge inlet portion 21 is greater than the amount of the organic flocculant injected into the sludge inlet portion 22 so that the sludge overflows when the sludge reaches a predetermined height. An overflow elbow 2142 coupled to the other end of the overflow elbow 2141 and an overflow elbow 2142 coupled to the other end of the overflow elbow 2141 to change an overflowing direction by 90 degrees, A sludge overflow nozzle 214 composed of an overflow flange 2144 and a overflow flange 2144 coupled to a lower end of the overflow vertical single pipe 2143 is formed.

The overflow nozzle 214 of the sludge inlet portion 21 is provided with an inlet of the overflow nozzle 214 at a predetermined height so as to overflow the overflow nozzle 214 when a predetermined height is reached. And an overflow tank 215 having a bottom is formed.

As shown in FIG. 3, on one side shared by the sludge inlet portion 21 and the organic flocculant input portion 22, a V-Weir ) 221 are formed.

As shown in FIG. 5, when the sludge charged with the poly-iron fed into the V-shaped weir 221 reaches a certain level, the organic coagulant feed unit 22 is drawn into the organic coagulant feed unit 22, And the sludge supply pipe 222 into which the polymer is introduced is formed at a predetermined ratio according to the flow rate so that the polymer is uniformly mixed.

In order to reduce the number of pores between the sludge and the sludge by causing the poly-iron, the anionic material, suspended matters and suspended substances to be tightly aggregated, the rapid stirring part 23 is rotated at a constant speed between 120 and 240 rpm 231 are installed.

A sludge inlet hole 232 to which the sludge supply pipe 222 of the organic flocculant input unit 22 is connected is formed at a lower portion of the side surface of the rapid stirring unit 23 at a predetermined height.

The lower portion of the opposite side of the sludge inlet hole 232 is formed with a lower opening portion 233 at which the partially agglomerated sludge is moved to the slow stirring portion 24 at a predetermined height from the bottom.

It is preferable that the slow stirring portion 24 is sized to allow the sludge to stay for at least one minute so that the sludge can sufficiently aggregate.

The slow stirring portion 24 is provided with a slow stirring device 241 that turns the rotating current in a turbulent state so as to smoothly form flocs and rotates at a rotating speed varying from 10 to 60 rpm.

An overflow head 2421 having a predetermined width so that the flocized sludge can overflow; The flocked sludge is discharged at the lower end of the overflow head 2421, and a floc discharge portion 242 composed of one or more floc discharge openings 2422 is formed.

A drain nozzle 243 for cleaning the slow stirring part 24 is formed on the bottom of the slow stirring part 24.

As shown in FIG. 6, the rapid stirring apparatus 231 is operated at a constant rotation speed of 120 to 240 rpm to reduce the number of pores between the sludge and the sludge by causing the poly-iron and the anionic material, Turns to the channel.

The rapid stirring apparatus 231 includes a rapid geared motor 2311 having a reduction ratio of 7.5 to 15 to 1 and having a pole number of 4; And a rapid agitator 2312 coupled to the rapid geared motor 2311 by coupling and rotating at a reduced rotational speed.

The rapid agitator 2312 includes a rapid agitation shaft 23121 coupled to the rotation axis of the rapid geared motor 2311 by coupling. And two rapid stirring blades 23122 each of which is installed at a lower end of the rapid stirring shaft 23121 and stopped at a predetermined height.

It is preferable that the diameter of the rapid stirring vane 23122 is 200 mm and the height is 60 mm.

As shown in FIG. 7, the slow stirring apparatus 241 turns the rotating current in a turbulent state to smooth floc formation, and rotates at a rotating speed varying from 10 to 60 rpm.

The slow stirring device 241 includes a constant speed geared motor 2411 having a reduction ratio of 30 to 1 or 60 to 1 and having a pole number of 4; An inverter for varying the number of revolutions of the full geared motor 2411 by frequency adjustment; And a slow speed stirrer 2412 which is coupled with the full speed geared motor 2411 by coupling and rotates at a reduced rotation speed.

The slow stirrer 2412 includes a slow stirring shaft 24121 coupled to the rotary shaft of the constant speed geared motor 2411 by coupling. In order to smoothly form the floc, two smooth stirring blades 24122, which are paddle type, each of which is provided at a certain height of the slow stirring shaft 24121 and have four vertical blades 241221, )Wow; The slow stirring shaft 24121 is inserted to support the lower portion of the slow stirring shaft 24121 so that the slow stirring shaft 24121 rotates silently without vibration and is fixedly coupled to the bottom of the slow stirring portion 24 And a lower fixed disk 24123.

The slow stirring blade 24122 preferably has a vertical blade 241221 having a height of 300mm and a width of 50mm and a rotation diameter of 750 to 850mm.

8, the lower fixed disk 24123 is inserted into the slow stirring shaft 24121 so that the slow stirring shaft 24121 is silently rotated without vibration, And is fixedly coupled to the bottom of the slow stirring portion 24.

The lower fixed disk 24123 includes a shaft support portion 241231 into which the slowly stirring shaft 24121 is inserted in a cylindrical shape; And a disk flange 241232 welded to the lower outer periphery of the shaft support portion 241231 and ring-shaped and fixed to the bottom of the slow stirring portion 24, and the shaft support portion 241231 is fixed to the bottom end of the slow stirring shaft 24, A metal bushing 2412311 into which surface 24121 is inserted and is in surface contact; And a support outer tube 2412312 into which the metal bush 2412311 is inserted and is engaged with the disk flange 241232.

As shown in FIGS. 9 to 11, the dewatering device 3 includes a screw blade 312 (see FIG. 9) for sludge which is flocculated and flocculated when the solid material is flocculated, And a screw main shaft 311 having a double shaft structure having the main shaft 3111 and the eccentric shaft 3112 at both ends of the main shaft 3111. The screw main shaft 311 includes the screw vane 312, A conveying screw portion 31 for conveying the toner image; The sludge flocized by the rotation of the feed screw part 31 is concentrated while being dewatered and the desorbed filtrate from which the slurry is separated is discharged to the outside of the eccentric shaft 3112 A solid-liquid separating portion 32 which is discharged downward by a swing of the fluid ring 323 due to eccentric motion; The sludge is connected to the inflow portion fixing plate 361 at the front end of the solid-liquid separating portion 32 and stabilizes and re-coagulates the sludge having some flocked portions while being drawn into the dewatering device 3, 33); A sludge inlet (34) installed in the inflow section fixing plate (361) at the upper portion of the inlet pipe (33) and into which flocked sludge is introduced; A cake discharging portion 35 connected to the rear end of the solid-liquid separating portion 32 and having a discharging portion fixing plate 362 and a cake discharging portion 35 coupled to the other end of the solid-liquid separating portion 32 to discharge the cake; The inflow section fixing plate 361 having the solid-liquid separating section 32 and the conveying screw section 31 built therein and having the sludge inlet section 34 and one end of the inflow pipe 33 is installed, A discharge port fixing plate 362 on which the cake discharge port 35 is installed, a filtrate discharge hopper 364 through which the liquid discharged from the dewatering device is discharged downward, and a frame body (36); A drive unit (37) for rotating the feed screw unit (31); A controller for operating and controlling the dewatering device 3; And a spray device (38) for cleaning the foreign substance of the solid-liquid separation part (32).

The solid-liquid separating section 32 is connected to three fixing bars 322, both ends of which are rotatable in the conveying screw section 31 and are fixed to the inlet fixing plate 361 and the discharging section fixing plate 362, respectively, A plurality of fixing bars 3211 fastened to the fixing bars 322 at predetermined intervals on the outer circumference and formed with spacers 3212 spaced apart from each other by a predetermined distance, A plurality of retaining rings 321; The conveying screw unit 31 is rotatably rotated and is installed between the stationary ring 321 and the stationary ring 321. The end of each eccentric shaft 3112 is engaged with the rotation of the eccentric shaft 3112 And the two eccentric drive plates 314 are connected to the two eccentric drive plates 314 and are installed between the three main axes 324 which are rotated by the screw main axis 311, And a plurality of fluid rings 323 which are in the shape of a thin ring plate and swing and rotate by the flow of the fluid axis 324. [

The swinging of the fluid ring 323 has a constant pattern to increase the sludge recovery rate by preventing the vibration of the feed screw part 31 by smoothly rotating the feed screw part 31 at the front end of the main shaft 3111, A main shaft bearing housing portion 313 for preventing sludge and moisture from leaking to the outside is provided.

According to the dewatering device (3) of the present invention, the problem of breakage of the flooded sludge and leakage of the dewatering device (3) can be solved by installing the inflow pipe (33) And the sludge dewatering and recovery efficiency is improved by 15% by operating the moving ring portion 323 due to the silent movement. The durability is improved, and the wear of the screw main shaft 311 is prevented, thereby improving the durability.

The recovery efficiency of the solid material of the dewatering device of the present invention was commissioned on Feb. 1, 2018, Korea Research Institute of Chemical Fusion Test, and as a result, TS (Total Solid) of the inflow sludge was 10700 mg / L and the suspended material of the tear filtrate was 37 mg / , And the solids recovery rate is [Inflow Sludge (TS) - Tally Filtrate (TS)] / Inflow Sludge (S) X 100, which is 99.65%.

In addition, since the inflow pipe 33 and the spindle bearing housing portion 313 are provided to cause the flock to break and the flow of the fluidized ring to have a certain pattern due to the silent operation, the rotation speed of the feed screw is increased, .

As shown in FIGS. 11 and 12, the fixing ring 321 is fixed to the inlet stationary plate 361 and the outlet stationary plate 362 with both ends thereof being rotated inside the feed screw unit 31, And three fixing bar fastening ribs 3211 fastened to the fixing bar 322 at regular intervals on the outer circumference are formed on the outer circumference of the fixing bar 322, And a plurality of spacers 3212 are provided to maintain constant spacing.

The moving ring 323 is rotatably supported by the moving screw part 1 and is installed between the stationary ring 321 and the stationary ring 321. The ends of the rotating eccentric shaft 3112 are engaged with each other, Both ends are coupled to two eccentric drive plates 314 that are rotated by the rotation of the eccentric shaft 3112 and are provided with eccentric bearings 3141 so that the three main axes 311, 324, and is formed in a thin ring shape, and is swung and rotated by the flow of the moving shaft 24, and is formed of a plurality of pieces.

The floating ring 323 is inserted and arranged so as to swing at a predetermined interval formed between the fixed rings 321 and inserted into the fixed ring 321 so as to flow between the fixed rings 321, The thickness of the fixing ring 321 is smaller than the distance between the fixing rings 321 so that water is discharged to the outside through a minute gap formed between the fixing ring 321 and the floating ring 323.

The outer circumference of the fluid ring 323 is in contact with and supported by the three fluid axes 324 so that the outer circumference of the fluid ring 323 and the outer circumference of the fluid axis 324 are moved in accordance with the eccentric oscillation of the fluid axis 324, And the pressure of the solid and liquid mixture pressed by the feed screw section 31 provided at the center of each ring, the plurality of the flow rings 323 swing individually and rotate So that the desirable regeneration and filtration capability of the filtration gap between the fixed ring 321 and the floating ring 323 is remarkably improved.

Since the fixed ring 321 and the floating ring 323 do not directly touch the water film, wear due to friction between them does not occur, and there is no wear, and the durability is semi-permanent.

Since the contact and support between the floating ring 323 and the floating shaft 324 are point-contact with the circular and circular shapes, the floating ring 323 and the floating shaft 324 are not worn and can be used permanently. In the case of replacing the broken fluid ring 323, only one fluid axis 324 is disassembled to replace only the fluid ring 323 which is worn out, and only one fluid axis 324 which has been disassembled is fastened. There is an effect that the replacement work of the worn fluid ring 323 becomes much simpler.

As shown in FIG. 13, the conveying screw unit 31 has a screw blade 312, which is narrowed in pitch toward the front side so as to be dewatered by advancing the sludge forward when the flocked sludge is flocculated and solidified, And a screw main shaft 311 having a double shaft structure having the main shaft 3111 and the eccentric shaft 3112 at both ends of the main shaft 3111 and the screw vane 312 installed therein and rotated at a constant rotation speed.

The swinging of the fluid ring 323 has a constant pattern to increase the sludge recovery rate by preventing the vibration of the feed screw part 31 by smoothly rotating at the front end of the main shaft 3111, A main shaft bearing housing portion 313 for preventing sludge and moisture from leaking to the outside is provided.

An O-ring groove 31111 is formed at the front end of the main shaft 3111 to insert the O-ring 3134 of the main shaft bearing housing portion 313.

Eccentric bearings 3141 are provided at both ends of the eccentric shaft 3112 and each eccentric drive plate 314 is formed by the rotation of the eccentric shaft 3112.

The eccentric drive plate 314 is formed with a shaft coupling hole through which the shaft 324 is coupled.

The eccentric bearing 3141 is preferably a ball bearing type having rubber seals on both sides to prevent the sludge from penetrating into the bearing and preventing the bearing from rotating smoothly.

14, the screw spindle 311 is provided with the screw vane 312 and is rotated at a constant rotation speed and has an eccentric shaft 3112 at both ends of the main shaft 3111 and the main shaft 3111 The branch is a dual axis structure.

Since the screw main shaft 311 has the eccentric shaft 3112, the eccentric drive plate 314 installed on the eccentric shaft 3112 is eccentrically moved, And the fluid ring 323 provided between the three fluid dynamic shafts 324 is also subjected to the rotational motion and the swing motion.

The pitch P between the screw blade 312 and the screw blade 312 provided on the screw main shaft 311 becomes narrower from the sludge inlet 34 toward the cake outlet 35, And the pressure in the portion 320 gradually increases.

That is, the pitch P of the screw spindle 311 is gradually narrowed, that is, P1> P2> P3> P4> P5> P6> P7> P8> P9, Pressure is generated on the inner side of the flow ring 321 and the flow ring 323.

15, the stationary ring 321 is rotatably supported by three fixing members 361, 362, 363, 363, 363, 363, Three fixed bar fastening ribs 3211 which are fixed to the fixed bar 322 and are fixed at regular intervals and which are formed in a thin ring shape and are fastened to the fixing bar 322 at regular intervals on the outer circumference, And a plurality of spacers 3212 are provided.

Each of the fixed bar fastening ribs 3211 has a fastening hole 32111 through which the fastening bar 322 is inserted.

The moving ring 323 is rotatably supported by the moving screw portion 31 and is installed between the stationary ring 321 and the stationary ring 321. The ends of the rotating eccentric shaft 3112 are engaged with each other, Both ends are coupled to two eccentric drive plates 314 that are rotated by the rotation of the eccentric shaft 3112 and are provided with eccentric bearings 3141 so that the three main axes 311, 324, and is formed in a thin ring shape, and is swung and rotated by the flow of the moving shaft 324, and is formed of a plurality of pieces.

The floating ring 323 is inserted and disposed so as to swing at a predetermined interval formed between the fixed rings 321 and inserted into the fixed ring 321 so as to flow between the fixed rings 321. [ The thickness of the fixing ring 321 is smaller than the distance between the fixing rings 321 so that water is discharged to the outside through a minute gap formed between the fixing ring 321 and the floating ring 323.

16 and 17, the inflow pipe 33 is provided at the front end of the solid-liquid separator 32 and is coupled to the inflow portion fixing plate 361. The inflow pipe 33 is inserted into the dehydrator 3, Flocking stabilizes the broken sludge and re-agglomerates it, has a length of 150 mm to 300 mm, and preferably has a length of 200 mm.

The inflow pipe (33) has a cylindrical portion (331) having a predetermined length and stabilizing and re-coagulating the sludge broken by flocking while being drawn into the dewatering device (3); Three inlet pipe coupling ribs 3321 each formed at both ends of the cylindrical portion 331 and welded to each other and having a coupling hole 33211 through which the fixing bar 322 passes are formed to protrude, Two rib flanges 332 of the same shape as the ring 321, one of which is in contact with the stationary ring 321 and the other of which is in contact with the inlet stationary plate; The fixing bar 322 has a guide hollow 3331 having the same diameter as that of the fastening hole 33211 and passes through the fastening hole 33211 of the rib flange 332 and the fastening hole 33211 by welding And three guide pipes 333 for reinforcing the strength of the rib flange 332 and guiding the fixing bar 322. [

A rib flange fitting portion 3311 is formed at both ends of the cylindrical portion 331 to weld the rib flange 332.

The inside of the guide hollow 3331 must be subjected to an inner surface treatment so that the fixing bar 322 can easily pass through.

The rib flange 332 is provided with a fluid contact portion 3322 for line contact with the fluid axis 24.

As shown in FIGS. 18 and 19, the main shaft bearing housing portion 313 smoothly rotates the feed screw portion 31 to prevent vibration, so that the swing of the fluid ring 323 has a constant pattern Thereby increasing the sludge recovery rate and preventing the sludge and moisture from leaking to the outside through the main shaft 3111.

The main shaft bearing housing part 313 is fitted to one end of the main shaft 3111 of the screw main shaft 311 to support a load applied to the screw main shaft 311 and to increase water tightness. A main shaft bearing 3131 for rotating the main shaft 3131; The main shaft bearing 3131 is inserted into one end of the main shaft bearing 3131 and serves as a case of the main shaft bearing 3131. The main shaft bearing housing portion 313 supports the screw main shaft 311, A main shaft bearing housing 3132 installed and supported on the inflow section fixing plate; A riser 3133 installed inside the main shaft bearing 3131 of the main shaft bearing housing 3132 to block sludge and moisture from entering the main shaft bearing 3131; A pair of O-rings 31341 and 3134b installed inside the O-ring groove 31111 of the main shaft 3111 and one end of the main shaft bearing housing 3132 to prevent leakage of sludge and moisture on the main shaft 3111 )and; And a spindle bearing housing cover 3135 for blocking one end of the spindle bearing housing 3132 where the spindle bearing 3131 is installed to prevent the spindle bearing 3131 from being removed from the spindle bearing housing 3132 .

20, the main shaft bearing 3131 is fitted to one end of the main shaft 3111 of the screw main shaft 311 to support a load applied to the screw main shaft 311 and to increase water tightness. Thereby allowing the main shaft 311 to rotate smoothly.

The main shaft bearing 3131 includes a bearing outer ring case 31311 serving as an outer case of the bearing; A bearing inner ring case 31315 into which the main shaft 3111 is inserted and rotated together with the main shaft 3111; A plurality of balls 31312 formed between the bearing outer ring case 31311 and the bearing inner ring case 31315 to smooth the rotation and support the load; A ball retainer 31313 serving as a ball casing for holding the balls 31312 at predetermined intervals and rotating the balls; A rubber seal 31314 is provided to prevent the sludge and moisture from penetrating into the inside of the ball to prevent the bearing from rotating smoothly.

The main shaft bearing housing 3132 serves as a case of the main shaft bearing 3131 and the main shaft bearing 3131 is inserted into one end of the main shaft bearing housing 3131 and the main shaft bearing housing portion 313 And supports and supports the inflow section fixing plate to withstand the load applied to the screw main shaft 311 and rotate smoothly.

The main shaft bearing housing 3132 is coupled to and supported by the inflow portion fixing plate 361 and includes a fixed plate coupling flange portion 31321 through which the main shaft 3111 passes; An O-ring mounting portion 31322 formed continuously from the fixing plate-engaging flange portion 31321 and provided with two O-rings and having a main shaft through-hole 313221 formed therein to allow the main shaft 3111 to pass therethrough; The ribs 31323 are formed in a continuous manner with the O-ring mounting portion 31322 and are provided with ribs 313231 which are larger than the main shaft passing hollows 313221 so that the ribs 3133 can be installed. A mounting portion 31323 on which the o-ring mounting portion 31322 and the lead-in portion 313232 are formed; A spindle bearing mounting hole 313241 which is connected to the lead pin mounting portion 31323 and is provided with the main spindle bearing 3131 and is larger than the lead pin mounting hole 313231 so that the main spindle bearing 3131 can be installed, And a spindle bearing mounting portion 31324 having a bearing jaw 313242 formed on the lead frame mounting portion 31323 and a spindle bearing housing cover 3135 mounted on the end portion.

The fixing plate engaging flange portion 31321 has a flange end pipe 313211 having a predetermined length; And a coupling flange 313212 which is connected to the flange single pipe 313211 and is coupled to the inlet fixing plate 361.

In order to prevent the interference flange 313212 from interfering with the sludge inlet portion 34, a horizontal cutting portion 3132121 having a shape in which the arc of the upper portion is cut to a predetermined size is formed.

Four spindle bearing housing cover engaging holes 313243 are formed at one end of the main shaft bearing mounting portion 31324.

22, the riser 3133 is installed inside the main shaft bearing 3131 of the main shaft bearing housing 3132 so that sludge and moisture are introduced into the main shaft bearing 3131 in a second order The giver plays a role.

The ridener 3133 includes an outer diameter portion 31331 having an outer diameter equal to that of the hollow 313231 and contacting the bearing case 31311 of the main shaft bearing 3131; And an inner diameter portion 31332 connected to the outer diameter portion 31331 and having an inner diameter equal to the outer diameter of the main shaft 3111 and preventing sludge and water from being drawn through the main shaft 3111.

A ring 313311 having a circular cross section is inserted into the outer diameter portion 31331.

An elastic spring 313321 for tightly contacting the main shaft 3111 is installed inside the inside of the inside diameter portion 31332.

A spring mounting groove 313322 for mounting the elastic spring 313321 is formed on the outer side of the inner diameter portion 31332.

A dust separator 313323 for primarily preventing sludge and moisture from being drawn into the main shaft bearing 3131 side through the main shaft 3111, inside the inner diameter portion 31332; The sludge and moisture that have passed through the dust separator 313323 are prevented from coming into contact with the main shaft bearing 3131 by the compression force of the elastic spring 313321 to close the main shaft 3111, A triangular protrusion 313324 is formed.

23, the main shaft bearing housing cover 3135 blocks one end of the main shaft bearing housing 3132 on which the main shaft bearing 3131 is installed, so that the main shaft bearing 3131 is inserted into the main shaft bearing housing 3131 3132). ≪ / RTI >

The main shaft bearing housing cover 3135 is provided with a main shaft through hole 31351 through which the main shaft 3111 passes and a housing coupling hole 31352 coupled with the main shaft bearing housing cover coupling hole 313243 by a cup screw 31353. [ And the main shaft bearing housing cover 3135 and the main shaft bearing housing 3132 are coupled by a dish screw 31353.

According to the dehydrator system A in which the dehydrating efficiency is increased by using the flocculation tank 2 of the present invention, the number of voids between the sludge and the sludge is reduced by using the flocculation tank 2 in which the rapid agitator 23 is formed Thereby reducing the moisture content of the cake in the dewatering device 3 and solving the problem of cracking flaked sludge at the beginning of the dewatering device 3 and the leakage problem by the installation of the inflow pipe to increase the dewatering efficiency, The housing part 313 is provided to prevent vibration of the conveying screw part 31 and to operate uniformly to the movement of the fluid ring 323 due to the silent movement to improve the sludge dewatering and recovery efficiency by 15% The durability of the screw main shaft 311 is improved to prevent wear of the screw main shaft 311, thereby improving the durability.

A: Dewatering system
1: coagulant feeder 11: poly iron feeder
111: poly iron storage tank 112: poly iron feed pump
12: Polymer supply device 121: Polymer stock tank
1211: Polymer stock solution supply pump 122: Polymer dissolution apparatus
123: Dilute Polymer Feed Pump
2: coagulation tank
21: sludge inlet portion 211: level sensor
2111: Level sensor bracket 212: Sludge draw-in nozzle
2121: Inlet Elbow 2122: Inlet Vertical Single Pipe
2123: inlet flange 213: drain nozzle
214: overflow nozzle 2141: overflow nozzle
2142: overflow elbow 2143: overflow vertical pipe
2144: Overflow flange 215: Overflow flange
22: Organic coagulant input part 221: Vwyer
222: sludge supply pipe 23: rapid agitation part
231: Rapid stirring device 2311: Rapid geared motor
23111: Geared motor bracket
2312: Rapid stirrer 23121: Rapid stirrer shaft
23122: Rapid stirring wing 232: Sludge inlet hole
233: lower opening portion 24: slow stirring portion
241: Slow stirring device 2411: Completely geared motor
2412: Slow stirrer 24121: Slow stirrer
24122: Slow stirring blade 241221: Vertical blade
24123: Lower fixed disk 241231:
2412311: Metal bushing 2412312: Support shaft
241232: Disk flange 242: Floc discharge
2421: Overflow head 2422: Floc outlet
2423: Floc supply line 243: Drain nozzle
3: Dewatering device
31. Feed screw section 311: screw main shaft
3111: Spindle 31111: O-ring groove
3112: eccentric shaft 312: screw blade
313: Main shaft bearing housing part 3131: Main shaft bearing
31311: Bearing outer ring case 31312: Ball
31313: Ball retainer 31314: Rubber seal
31315: Bearing inner ring case
3132: Spindle bearing housing 31321: Fixing plate coupling flange section
313211: Flanged end fittings 313212: Fitting flanges
3132121: Horizontal cutting part 3132122: Flange hole
31322: O-ring mounting part 31323: Leader mounting part
313231: Ridena installation hollow 313232: Ridena chin
31324: Spindle bearing mounting part 313241: Spindle bearing mounting hollow
313242: bearing chin 313243: spindle bearing housing cover engaging hole
3133: Ridena 31331:
313311: Ring 31332: Inner diameter
313321: Elastic spring 313322: Spring mounting groove
313323: Part with dust film 313324: Triangular protrusion
3134: O-ring 3135: Spindle bearing housing cover
31351: Spindle through hollow 31352: Housing coupling hole
31353: Plate screw 314: Eccentric drive plate
3141: eccentric bearing 32: solid-liquid separator
321: Retaining ring 3211: Fixing bar fastening rib
32111: fastening hole 3212: spacer
322: fixed bar 323: floating ring
324: Liquid shaft 325: Eccentric drive plate
3251: eccentric bearing 33: inlet pipe
331: cylindrical portion 3311: rib flange fitting portion
332: rib flange 3321: inflow tube fastening rib
33211: fastening hole 3322:
333: Guide tube 3331: Guide hollow
34: sludge inlet portion 35: cake outlet portion
36: main body frame part 361: inflow part fixing plate
362: discharge part fixing plate 363: side plate
364: Fluid discharge hopper 366: Fluid shaft and fixed bar supporting plate
37: driving part 38: spray device
4: Cake transfer conveyor 5: Cake discharge hopper

Claims (5)

A dewatering device system (hereinafter referred to as " dewatering system ") for supplying frozen sludge by supplying a coagulant to be introduced for separating water from the sludge into a flocculation and mixing tank 2 in which a stabilized sludge is introduced in a sludge storage tank A)
The dewatering system (A) comprises: the coagulation tank (2) for adding flocculant to the incoming sludge to form flocized sludge;
Ferric sulfate (2), which is an inorganic polymer flocculant that chemically reacts with anionic substances and suspended or suspended substances in the sludge to increase floc strength,

(1) for supplying a flocculant containing a polymer as an organic polymer flocculant;
The flocked sludge overflowed in the coagulation and mixing tank 2 is supplied to the flexible flock supply line 2423 and the screw vane 312 is installed therein and the fixed ring 321 and the floating ring 323 are installed, The sludge flourized in the solid-liquid separating unit 32 is compressed and moved, the sludge is discharged by the swinging motion of the fluidizing ring 323 to the bottom, and the sludge is dewatered and the cake is discharged to the other end And a dehydrating device (3)
The coagulant admixture tank 2 includes a sludge inlet 21 for introducing the ferric sulfate into the upper portion and introducing sludge from the lower portion to uniformly mix the ferric sulfate and the sludge.
The sludge drawn in from the sludge inlet (21) flows in and flows through the sludge inlet (21) while sharing one side from a certain height to an upper end of the sludge inlet (21). The organic coagulant (22);
The sludge mixed with the flocculant at the sludge inlet portion 21 and the organic flocculant input portion 22 is introduced at a predetermined lower height of the sidewall and the sludge charged with the flocculant is rapidly stirred at a predetermined rotation speed to form the ferric sulfate and the anionic The ferric sulfate, the anionic material, the suspen- sion and the suspended material are tightly aggregated to reduce the pore water between the sludge and the sludge, thereby reducing the moisture content of the cake in the dehydration apparatus A rapid stirring portion 23;
The sludge is partially flocculated by the rapid agitating part 23 and is slowly stirred at a constant rotation speed to make flocculated sludge. The sludge is overflowed to the upper part, And a slow stirring part (24) for supplying sludge flocized by the dewatering device (3)
In order to reduce the number of pores between the sludge and the sludge by firmly aggregating the ferric sulfate, anionic material, suspended solids and suspending substances, the rapid stirring part 23 is rotated at a constant speed between 120 rpm and 240 rpm 231,
A sludge inlet hole 232 to which a sludge supply pipe 222 of the organic flocculant input unit 22 is connected is formed at a lower portion of a predetermined height of the side surface of the rapid agitation unit 23,
The lower portion of the opposite side of the sludge inlet hole 232 is formed with a lower opening portion 233 at which the sludge agglomerated to a certain height at the bottom is moved to the slow stirring portion 24,
The rapid stirring apparatus 231 includes a rapid geared motor 2311 having a reduction ratio of 7.5 to 15 to 1 and having a pole number of 4;
And a rapid agitator 2312 coupled to the rapid geared motor 2311 by coupling to rotate at a reduced rotational speed,
The rapid agitator 2312 includes a rapid agitation shaft 23121 coupled to the rotation axis of the rapid geared motor 2311 by coupling.
And two rapid stirring vanes 23122 each of which is a propeller type and provided at a lower end of the rapid stirring shaft 23121 and at a predetermined height. The dewatering device system
The method according to claim 1,
A level sensor 211 for measuring the level of the sludge inlet 21 is provided on the upper side of the sludge inlet 21,
The sludge is drawn to the side of the sidewall of the sludge inlet 21 and drawn into the sidewall of the sludge inlet 21. The sludge inlet 2117 is connected to the sidewall of the inlet elbow 2121 and the inlet vertical pipe 2122 is welded to the other end of the inlet elbow 2121, And a suction flange 2123 coupled to the lower end of the inlet vertical single pipe 2122 to form a sludge inlet nozzle 212 coupled with the sludge inlet line,
A drain nozzle (213) for completely discharging sludge therein is formed at the bottom of the sludge inlet (21)
The amount of sludge introduced into the sludge inlet portion 21 is greater than the amount of the organic flocculant injected into the sludge inlet portion 22 so that the sludge overflows when the sludge reaches a predetermined height. An overflow elbow 2142 coupled to the other end of the overflow elbow 2141 and an overflow elbow 2142 coupled to the other end of the overflow elbow 2141 to change an overflowing direction by 90 degrees, A sludge overflow nozzle 214 composed of an overflow flange 2144 and an overflow flange 2144 coupled to a lower end of the overflow vertical single pipe 2143,
The overflow nozzle 214 of the sludge inlet portion 21 is provided with an inlet of the overflow nozzle 214 at a predetermined height so as to overflow the overflow nozzle 214 when a predetermined height is reached. And an overflow tank 215 having a bottom is formed,
A V-Weir 221 is formed at a 90-degree angle in a V-shape so as to measure the flow rate of the sludge, on one side shared by the sludge inlet 21 and the organic coagulant input 22, Is formed,
When the sludge having the ferric sulfate injected into the VWir 221 reaches a certain level, the organic coagulant injecting unit 22 draws in the sludge and supplies the sludge to the lower side of the predetermined height of the rapid agitating unit 23 And a sludge supply pipe (222) into which the polymer is injected is formed at a predetermined ratio according to a flow rate so that the polymer is uniformly mixed. The dewatering device system
delete The method according to claim 1,
The slow stirring portion 24 is sized to allow the sludge to stay for at least one minute so that the sludge can sufficiently aggregate,
The slow stirring section 24 is provided with a slow stirring device 241 which makes the rotating current turbulent so as to smoothly form flocs and rotates at a rotating speed varying from 10 to 60 rpm,
An overflow head 2421 having a predetermined width so that the flocized sludge can overflow;
A floc discharge portion 242 is formed at the lower outer side of the overflow head 2421, flocized sludge is discharged and one or more floc discharge openings 2422 are formed,
A drain nozzle 243 for cleaning the slow stirring portion 24 is formed on the bottom of the slow stirring portion 24,
The slow stirring device 241 includes a constant speed geared motor 2411 having a reduction ratio of 30 to 1 or 60 to 1 and having a pole number of 4;
An inverter for varying the number of revolutions of the full geared motor 2411 by frequency adjustment;
And a slow speed stirrer 2412 which is coupled with the full speed geared motor 2411 and rotates at a reduced rotational speed,
The slow stirrer 2412 includes a slow stirring shaft 24121 coupled to the rotary shaft of the constant speed geared motor 2411 by coupling.
In order to smoothly form the floc, two smooth stirring blades 24122, which are paddle type, each of which is provided at a certain height of the slow stirring shaft 24121 and have four vertical blades 241221, )Wow;
The slow stirring shaft 24121 is inserted to support the lower portion of the slow stirring shaft 24121 so that the slow stirring shaft 24121 rotates silently without vibration and is fixedly coupled to the bottom of the slow stirring portion 24 And a lower fixed disk 24123,
The lower fixed disk 24123 includes a shaft support portion 241231 into which the slowly stirring shaft 24121 is inserted in a cylindrical shape;
A disk flange 241232 welded to the lower outer periphery of the shaft support portion 241231 and ring-shaped and fixed to the bottom of the slow stirring portion 24,
The shaft support portion 241231 includes a metal bush 2412311 in which the slow stirring shaft 24121 is inserted and in surface contact therewith;
And a support outer tube (2412312) into which the metal bushing (2412311) is inserted and engaged with the disk flange (241232). The dewatering system
The method according to claim 1,
The dewatering device (3) comprises a screw blade (312) for narrowing the pitch toward the front side to be dewatered by advancing the sludge forward when the flocked sludge is flocculated and solidified, and a screw blade A conveying screw portion 31 including a main shaft 3111 and a screw shaft 311 having a double shaft structure and having eccentric shafts 3112 at both ends of the main shaft 3111;
The sludge flocized by the rotation of the feed screw part 31 is concentrated while being dewatered and the desorbed filtrate from which the slurry is separated is discharged to the outside of the eccentric shaft 3112 A solid-liquid separating portion 32 which is discharged downward by a swing of the fluid ring 323 due to eccentric motion;
The sludge is connected to the inflow portion fixing plate 361 at the front end of the solid-liquid separating portion 32 and stabilizes and re-coagulates the sludge having some flocked portions while being drawn into the dewatering device 3, 33,
The solid-liquid separating section 32 is connected to three fixing bars 322, both ends of which are rotatable in the conveying screw section 31 and are fixed to the inlet fixing plate 361 and the discharging section fixing plate 362, respectively, A plurality of fixing bars 3211 fastened to the fixing bars 322 at predetermined intervals on the outer circumference and formed with spacers 3212 spaced apart from each other by a predetermined distance, A plurality of retaining rings 321;
The conveying screw unit 31 is rotatably rotated and is installed between the stationary ring 321 and the stationary ring 321. The end of each eccentric shaft 3112 is engaged with the rotation of the eccentric shaft 3112 And two eccentric drive plates 325 which are connected to both ends by the eccentric bearing 3251 and are installed between the three main axes 324 which are rotated by the screw main axis 311, And a plurality of fluid rings (323) in the form of a thin ring plate and swinging and rotating by the flow of the fluid axis (324)
The swinging of the fluid ring 323 has a constant pattern to increase the sludge recovery rate by preventing the vibration of the feed screw part 31 by smoothly rotating the feed screw part 31 at the front end of the main shaft 3111, And a main shaft bearing housing part (313) for preventing sludge and moisture from leaking out to the outside is installed on the bottom of the sludge tank

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