KR102639149B1 - Dewatering and drying equipment for recycling wastewater sludge into eco-friendly materials - Google Patents

Abstract

The present invention discloses a dewatering and drying device for recycling wastewater sludge into eco-friendly materials, and moves and compresses the sludge supplied through the sludge supply unit within a cylindrical dewatering body to separate moisture contained in the sludge, and to maintain the center of gravity. As the dehydration body moves, it is tilted and installed close to the dehydration unit for separating and discharging sludge and moisture, and the moisture flowing in from the dehydration unit is stored separately, and the sludge is blown by hot air with eccentric rotation. It includes a drying unit for drying.

Description

Dewatering and drying equipment for recycling wastewater sludge into eco-friendly materials}

Embodiments of the present disclosure relate to wastewater sludge treatment, and to a dewatering and drying device for recycling wastewater sludge into eco-friendly materials that can ensure environmental safety through appropriate treatment of wastewater sludge.

Environmental infrastructure includes sewage treatment facilities, excrement treatment facilities, and public livestock wastewater treatment facilities, and sludge is generated as a result of the operation of the above facilities.

In relation to the ban on direct landfilling of food waste and sludge among organic wastes, along with the enforcement rules of the Waste Management Act, direct landfilling of food waste and various sludges in urban areas has been banned since January 2005 and July 2003. This direct landfill ban is based on the premise of on-land treatment and resource conversion of sludge. However, for technical and economic reasons, marine discharge has been prioritized over land-based treatment.

Ocean discharge of sewage sludge has been increasing since the late 1990s, but as marine pollution has recently been recognized as a global environmental problem, the 72 London Convention Amendment 96 Protocol (Protocol 96 London Convention) was adopted to prevent pollution caused by ocean discharge of waste. ) came into effect, there was a demand for specific alternatives to sludge disposal, and as marine dumping of sludge was partially banned from 2008 and completely banned from 2012, resource recovery technology based on land disposal is being developed.

Accordingly, since sludge with a high moisture content is difficult to use directly, most treatment and recycling processes adopt a drying process to apply it as a pretreatment process to lower the moisture content or to use it directly after complete drying.

In general, drying is recognized as a simple technology to reduce moisture content, but it is necessary to be careful in selecting the technology because drying characteristics not only vary depending on the characteristics of the material being dried, but also require dried sludge in a different state depending on the situation of the place of use. there is.

Depending on the method of using heat, sludge drying methods include a direct drying method that uses combustion heat directly for drying, and an indirect drying method that uses indirect heat by generating steam with combustion heat. The moisture content of completely dried sludge is reduced to about 10-15%. After being made into pellets, they are recycled as auxiliary fuel for incinerators or as compost.

In addition, partial drying is carried out to reduce the moisture of the sludge and then incinerate it. However, due to the emission of bad odor and scattering of sludge during incineration, attention must be paid to prevention facilities, so the complete drying method is often used.

Accordingly, dewatering and drying devices and methods have been disclosed to recycle sludge as incinerator auxiliary fuel or compost, but these also do not efficiently dehydrate and dry the discharged sludge, and there are problems with bad odor and sludge scattering during the drying process. Still holding it.

Republic of Korea Patent Registration No. 10-0976243 Republic of Korea Patent Publication No. 10-2017-0116591

Embodiments of the present disclosure are intended to provide a dewatering and drying device for recycling sludge that improves the problems described above. In order to recycle wastewater sludge as incinerator auxiliary fuel or compost, the wastewater sludge is dehydrated by compression transfer and completely dried in a rotation manner. The purpose is to provide a device that can dry.

The technical problems to be achieved in the embodiments of the present disclosure are not limited to the matters mentioned above, and other technical problems not mentioned can be explained to those skilled in the art from the various embodiments described below. can be considered.

In the dewatering and drying device for recycling wastewater sludge into eco-friendly materials according to the spirit of the present invention, the sludge supplied through the sludge supply unit is moved and compressed within a cylindrical dewatering body to separate moisture contained in the sludge, and to reduce the weight. As the center moves, the dehydration body is tilted and installed close to a dehydration unit that separates and discharges sludge and moisture, and is connected to the dehydration unit. The moisture flowing in from the dehydration unit is stored separately, and the sludge is rotated eccentrically. It includes a drying unit for drying with hot air, wherein the dehydration unit includes a base frame supported on a floor, a dehydration body installed on the base frame in a hollow cylindrical shape with one end open, and a sludge inlet installed on the upper surface of the cylinder; An internal dehydration pipe installed in a concentric circle inside the hollow dehydration main body, which is cylindrical in shape with an inner diameter gradually narrowing as it moves toward the drying unit, and has a plurality of drain holes formed in a certain area, and a drive motor installed in the dehydration main body. A transfer screw, which is rotationally driven by a transfer screw located at the inner center of the internal dewatering pipe and moving the sludge forward, compressing the sludge by the narrowing width of the internal dewatering pipe and discharging moisture through the drain hole, And a support hinge that is supported on the base frame and connected to the dehydration main body and tilts the dewatering main body toward the drying unit around the fulcrum due to movement of the force point as the sludge moves forward within the internal dewatering pipe. You can.

According to an embodiment of the present invention, the support hinge can be installed to move from the center of the dewatering body to one side, so that the dewatering body can be tilted to the side where the drive motor is installed before moving the sludge.

According to an embodiment of the present invention, the drying unit includes an outer cylinder body in which moisture in the dehydration main body flows and a storage tank for storing the introduced moisture is provided at the bottom, and the drying unit is installed inside the outer cylinder body and is filled with the sludge and rotates. It may include an inner cylinder screen body that dehydrates and dries, a driving unit eccentrically installed on the inner cylinder screen body to rotate eccentrically, and a hot air means that penetrates the outer cylinder body and supplies hot air toward the inner cylinder screen body.

In the dewatering and drying device for recycling wastewater sludge into eco-friendly materials according to the present invention, effective dewatering of sludge is possible and odor and scattering of sludge can be prevented during the drying process.

In addition, through complete drying, organic matter contained in the sludge is decomposed and stabilized, and foreign substances containing pathogens, parasite eggs, viruses, and weed seeds are killed or inactivated at high temperatures, making it a hygienically safe recycling by-product. You can.

1 is an overall configuration diagram of a dewatering and drying device for recycling wastewater sludge into eco-friendly materials according to an embodiment of the present disclosure;
Figure 2 is a perspective view of a dehydration unit in a dewatering and drying device for recycling wastewater sludge into eco-friendly materials according to an embodiment of the present disclosure;
Figure 3 is a front cross-sectional view of the dehydration unit in the dewatering and drying device for recycling wastewater sludge into eco-friendly materials according to an embodiment of the present disclosure;
Figure 4 is a front cross-sectional view showing the operation of the dehydration unit in Figure 3;
Figure 5 is a cross-sectional view of the drying unit in the dewatering and drying device for recycling wastewater sludge into eco-friendly materials according to an embodiment of the present disclosure;
Figure 6 is a flat cross-sectional view showing the eccentric rotation of the inner cylindrical screen body in the drying section of Figure 5;
Figure 7 is a cross-sectional view showing another embodiment of a hot air means for delivering hot air to the drying unit.

The embodiments described in this specification and the configurations shown in the drawings are merely preferred examples of the disclosed invention, and at the time of filing this application, there may be various modifications that can replace the embodiments and drawings in this specification.

The same reference numbers or symbols shown in each drawing of this specification indicate parts or components that perform substantially the same function. The shapes and sizes of elements in the drawings may be exaggerated for clarity.

The terminology used herein is used to describe embodiments and is not intended to limit and/or limit the disclosed invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as “include” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. The existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof is not excluded in advance.

Terms containing ordinal numbers, such as “first,” “second,” etc., used in this specification may be used to describe various components, but the components are not limited by the terms, and the terms refer to one It is used only for the purpose of distinguishing one component from another. For example, a first component may be named a second component, and similarly, the second component may also be named a first component without departing from the scope of the present invention. The term “and/or” includes any combination of a plurality of related stated items or any of a plurality of related stated items.

Terms such as "... unit", "... unit", and "module" used in the specification refer to a unit that processes at least one function or operation, which is implemented as hardware, software, or a combination of hardware and software. It can be. Additionally, the terms “a or an,” “one,” “the,” and similar related terms are used herein in the context of describing various embodiments (particularly in the context of the claims below). Unless otherwise indicated or clearly contradicted by context, it may be used in both singular and plural terms.

The terms “top”, “bottom”, “front”, “rear”, etc. used below are defined based on the drawings, and the shape and location of each component are not limited by these terms.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the attached drawings.

Here, FIG. 1 is an overall configuration diagram of a dewatering and drying device for recycling wastewater sludge into eco-friendly materials according to an embodiment of the present disclosure, and FIG. 2 is a diagram showing the overall configuration of a dewatering and drying device for recycling wastewater sludge into eco-friendly materials according to an embodiment of the present disclosure. FIG. 3 is a perspective view of the dehydration unit in the dewatering and drying apparatus for recycling wastewater sludge into eco-friendly materials according to an embodiment of the present disclosure, and FIG. 4 is a front cross-sectional view of the dehydration unit in FIG. 3. It is a front cross-sectional view showing the operation, and FIG. 5 is a cross-sectional view of the drying unit in the dewatering and drying device for recycling wastewater sludge into eco-friendly materials according to an embodiment of the present disclosure, and FIG. 6 is an inner cylinder in the drying unit of FIG. 5. This is a flat cross-sectional view showing the eccentric rotation of the screen body.

The dewatering and drying device for recycling wastewater sludge into eco-friendly materials according to an embodiment of the present disclosure largely moves and compresses the sludge, and separates and discharges sludge and moisture from the dehydration unit 100. The moisture is stored separately, and the sludge may include a drying unit 200 that is dried with hot air while rotating eccentrically.

Figure 1 is an overall configuration diagram of a dewatering and drying device for recycling wastewater sludge into eco-friendly materials, which includes a hopper-shaped sludge supply unit (1) and a dewatering unit (100) located below the sludge supply unit (1) into which sludge flows. ), and a drying unit 200 is installed adjacent to the dehydrating unit 100.

The purpose is to recycle the sludge after the sludge (not shown) is dehydrated in the dehydration unit 100 and dried in direct contact with hot air in the drying unit 200 to reduce the moisture content of the sludge to about 10 to 15% or less. .

First, the wastewater sludge is collected externally, and then the suspended solids that can precipitate among the contaminants contained in the sludge are primarily precipitated, and the precipitated primary sludge is supplied to the sludge supply unit (1).

The sludge supply unit (1) is in the form of a hopper, and the supplied sludge falls and flows into the dewatering unit (100).

The dehydration unit 100 will be described with reference to Figure 2 or Figure 3.

The dehydration unit 100 separates moisture contained in the sludge while moving and compressing the sludge supplied through the sludge supply unit 1, and moves the center of gravity to tilt the dehydration main body 120 to separate and discharge the sludge and moisture. You can.

The dehydration unit 100 largely consists of a base frame 110, a dehydration main body 120 installed in a hollow cylindrical shape with one end open on the base frame 110, and an internal body installed inside the dehydration main body 120. It can be composed of a dewatering pipe 130, a transfer screw 140 that moves the sludge forward and compresses it inside the internal dewatering pipe 130, and a support hinge 170 that tilts the dewatering body 120 by moving the force point. there is.

More specifically, the base frame 110 is preferably made of metal and is composed of a floor frame 112 supported on the floor in a rectangular frame shape and a support frame 114 installed at a certain distance from the floor frame 112. , these floor frames 112 and support frames 114 are connected by multiple vertical frames (not numbered).

The support frame 114 may be a flat plate.

Additionally, the dehydration body 120 is installed on the base frame 110 and may have a hollow cylindrical shape with one end open.

In addition, a sludge inlet 122 is installed on the upper surface of the cylinder, so that sludge falling from the sludge supply unit 1 can flow into the sludge inlet 122.

An internal dehydration pipe 130 may be supported and installed concentrically within the hollow interior of the dehydration main body 120.

Both ends of the internal dewatering pipe 130 are supported and installed inside the dewatering main body 120, and a communication hole 132 may be formed to communicate with the sludge inlet 122.

In addition, the internal dehydration pipe 130 may preferably be cylindrical in shape with an inner diameter that gradually becomes narrower as it approaches the drying unit 200, and the end side facing the drying unit 200 along the entire length is separated from the open dehydration main body 120. It can be installed to protrude.

In addition, the discharge hole 134 of the internal dewatering pipe 130 may be formed from approximately half of the entire length where the inner diameter width gradually becomes narrower.

A plurality of discharge holes 134 may be perforated and arranged along the circumferential area.

Subsequently, the transfer screw 140 may be installed in the inner center of the internal dewatering pipe 130.

In order to drive the transfer screw 140, a drive motor 160 may be installed through the support plate 150 installed inside the dewatering body 120.

The drive motor 160 may be a general motor capable of forward and reverse rotation.

Again, the transfer screw 140 is located in the inner center of the internal dewatering pipe 130 and moves the sludge forward through a rotating operation, compressing the sludge moving toward the narrowing width of the internal dewatering pipe 130 and moving the sludge through the drain hole. Moisture is discharged through.

The transfer screw 140 has screw wings 142 continuously installed in the longitudinal direction along the internal dehydration pipe 130, and the size of the screw wings 142 is also small as the inner diameter width of the internal dewatering pipe 130 narrows. You can lose.

Meanwhile, a support hinge 170 may be supported on the base frame 110 and connected to the dehydrating body 120.

The support hinges 170 may be installed as a pair facing the dehydrating body 120.

The support hinge 170 may be a center part that rotates the dehydrating body 120 in the left and right directions like a seesaw through a hinge action.

In other words, the support hinge 170 moves the force point like the operation of a seesaw as the sludge moves forward within the internal dewatering pipe 130, so that the dewatering body 120 tilts toward the drying unit 200 around the support point. It can be operated easily.

That is, the sludge moving forward along the inside of the internal dewatering pipe 130 by the transfer screw 140 serves as an action point and is tilted around the support hinge 170 by moving the center of gravity.

As shown in FIG. 4, all of the sludge in the internal dehydration pipe 130 inclined toward the drying unit 200 and the moisture in the dehydration main body 120 can naturally freely fall.

In addition, the support hinge 170 can be moved to one side from the center of the dehydrating body 120.

As shown in FIG. 3, the support hinge 170 is installed at a position where the length of L2 is shorter than L1, so that the point of action acts toward the driving motor 160, so that the dewatering body 120 can be positioned to be tilted before the sludge moves.

In the present invention, the installation position of the support hinge 170 may vary depending on the amount of sludge supplied or the moving speed within the internal dewatering pipe 130.

That is, it may be desirable for the support hinge 170 to be installed at a position where the center of gravity of the dewatering body 120 can be moved and tilted when the sludge can be sufficiently moved or compressed.

Furthermore, a buffer pad 180 may be installed on the support frame 114 to protect the tilting dewatering body 120.

The buffer pad 180 can prevent damage by contacting the end side of the dehydrating body 120.

And the drying unit 200 is again installed close to the dehydrating unit 100 as shown in FIG. 1.

In the drying unit 200, the introduced moisture is stored separately, and the sludge is dried with hot air while rotating eccentrically.

The drying unit 200 will be described in detail with reference to FIG. 5 .

The drying unit 200 may be composed of an outer cylinder body 210, an inner cylinder screen body 220, a driving unit 230, and a hot air means 240.

In detail, the outer cylinder body 210 may be open at the top and a certain space may be formed inside.

A cover (not shown) may be installed on the open top of the outer cylinder body 210 to increase drying efficiency, and an exhaust port 212 may be integrally formed on the upper side.

Hot air and bad odors generated during the sludge drying process are discharged through the exhaust port 212, and a filter, etc. is installed inside, so that they can be purified and discharged.

In addition, a blocking plate 214 may be formed in the inner space of the outer cylinder body 210, and the blocking plate 214 partitions the inner cylinder screen body 220 and the driving unit 230, which will be described below, into space. It may be divided into an upper space 211a where the screen body 220 is installed and a lower space 211b where the driving unit 230 is installed.

Here, a drain hole 214a is formed in the blocking plate 214, and a storage tank 216 communicating with the drain hole 214a may be installed in the lower space 211b.

In the storage tank 216, moisture that has fallen from the dehydration unit 100 flows into the drain hole 214a of the blocking plate 214 and is temporarily stored therein.

The blocking plate 214 may be formed to be inclined toward the drain hole 214a.

Then, the inner cylinder screen body 220 is installed inside the outer cylinder body 210, and the sludge filled in the inner cylinder screen body 220 is dehydrated and dried through a rotating operation.

The inner cylindrical screen body 220 has a cylindrical shape with an upper opening, and the interior is filled with sludge, and a mesh or a plurality of through holes may be formed over the entire area.

The inner cylinder screen body 220 is installed at a certain distance from the outer cylinder body 210 in the upper space 211a to ensure an eccentric rotation radius.

In another embodiment, stirring wings (not shown) may be installed along the inner peripheral surface of the inner cylinder screen body 220.

And the driving unit 230 is a driving motor, and is installed in the lower space 211b so that the driving shaft 232 is connected to the inner cylinder screen body 220 and can rotate and drive the inner cylinder screen body 220.

Here, the drive shaft 232 may be installed eccentrically away from the center of the inner cylinder screen body 220.

As shown in FIG. 6, the drive shaft 232 is installed eccentrically such that L3 < L4 of the inner cylindrical screen body 220, so that the rotation radius can be expanded.

Furthermore, although not shown, a door is installed on one side of the inner cylinder screen body 220 and the outer cylinder main body 210, so that dried sludge can be removed.

And the hot air means 240 supplies hot air through the outer cylinder body 210 toward the inner cylinder screen body 220, thereby receiving hot air into the inner space of the inner cylinder screen body 220 where the sludge is accommodated, and at the same time, according to the eccentric rotation motion. It is a means of efficiently drying sludge by receiving hot air evenly over the entire area.

The hot air means 240 consists of a blower 242 that generates and sends wind, and an electric heater 244 that communicates with the blower 242 and transfers heat to the wind supplied from the blower.

The hot air supply pipe 246 connected from the electric heater 244 passes horizontally through the outer cylinder body 210 in the longitudinal direction and supplies hot air toward the inner cylinder screen body 220.

That is, the wind that receives radiant heat through the electric heater 244 is supplied to the inner space of the inner screen main body 220 through the hot air supply pipe 246 extending from the electric heater 244.

The operation of the dewatering and drying device for recycling wastewater sludge according to the present invention configured as described above into eco-friendly materials will be described in detail with reference to FIG. 4 or FIG. 6.

First, sludge in which suspended solids among contaminants are primarily precipitated is supplied to the dewatering unit 100 through the sludge supply unit 1.

The dehydration body 120 is tilted in the direction in which the drive motor 160 is installed around the support hinge 170 and becomes a force point, so that the end of the dehydration body 120 is a buffer pad installed on the support frame 114 ( 180).

In the above state, sludge flows into the sludge inlet 122 of the dewatering main body 120, and flows into the internal dewatering pipe 130 through the communicating hole 132.

Next, the transfer screw 140 is driven to rotate by driving the drive motor 160, and the screw blade 142 of the transfer screw 140 moves the sludge forward.

The sludge moving forward is naturally compressed in the internal dewatering pipe 130 whose inner diameter gradually narrows, and the moisture contained in the sludge is discharged through the discharge hole 134, and the discharged moisture is located in the dehydration main body 120. And the sludge, which has been dewatered to some extent, is in the internal dewatering pipe 130.

And at the point when the center of gravity moves according to the movement of the sludge, the dehydration main body 120 is tilted downward toward the drying unit 200 around the support hinge 170, and the moisture located in the dehydration main body 120 and Sludge in the internal dewatering pipe 130 may be naturally introduced into the drying unit 200 by its own weight.

Although not shown here, in another embodiment, a door that can be opened and closed automatically may be further installed in the dehydration body 120 and the internal dehydration pipe 130, and when the door is closed, the sludge can be sufficiently compressed and moisture can be discharged, After a certain period of time, the door can be opened to separate the sludge and moisture.

The dewatering body 120 and the internal dewatering pipe 130, which pour out moisture and sludge, can be automatically converted to the initial tilted position by rotating around the support hinge 170.

Subsequently, in the drying unit 200, moisture pours into the interior of the outer cylinder body 210 and is discharged into the drain hole 214a along the inclined blocking plate 214, and may be temporarily stored in the storage tank 216. there is.

Then, the sludge is filled in the inner cylinder screen body 220, and is rotated eccentrically by the eccentrically installed drive shaft 232 by the driving unit 230.

The inner cylinder screen body 220, which rotates eccentrically, has an enlarged rotation radius to shake off the remaining moisture from the internal sludge by centrifugal force, and the wind that receives radiant heat through the electric heater 244 extends to the electric heater 244. The sludge can be dehydrated and dried by being supplied to the inner space of the inner cylinder screen body 220 through the formed hot air supply pipe 246.

At this time, the moisture dehydrated from the inner cylinder screen main body 220 is stored in the storage tank 216.

And the dewatered and dried sludge is discharged through the door (not shown) of the inner cylinder screen main body 220.

Meanwhile, Figure 7 is a cross-sectional view showing another embodiment of a hot air means for delivering hot air to the drying unit.

Identical components are described by assigning the same number.

The hot air means 300 may be installed in the form of a cover at the open top of the inner cylinder screen main body 220.

Therefore, it is open when sludge is supplied and closed when rotated for drying.

The hot air means 300 may be composed of a thermoelectric element 302 and a heat sink 304.

It may include a thermoelectric element 302 that dissipates heat into the inner cylinder screen main body 220 by power supply, and a heat sink 304 that can dissipate heat generated from the thermoelectric element 302.

The thermoelectric element 302 may be a Peltier element, and the Peltier element has been used for a long time, and utilizes the phenomenon that a temperature difference persists between both ends of several layers of a conductive material when an electric current is passed.

The thermoelectric element 302 has a thin plate shape, and when power is supplied, one side is cooled to become a cooling surface with a low temperature, and the other side radiates heat so that one side can continuously maintain the cooling surface, thereby lowering the temperature. It becomes a rising heat dissipation surface.

Therefore, a heat sink 304 is formed on the heat dissipation surface side to radiate heat generated from the thermoelectric element 302 to the outside.

By increasing the internal temperature of the inner cylinder screen body 220, the sludge can be dried with rotation.

As described above, effective dewatering of sludge is possible, and odor and scattering of sludge can be prevented during the drying process.

In addition, through complete drying, the organic matter contained in the sludge is decomposed and stabilized, and the material is killed or inactivated in the high temperature zone where pathogens, parasite eggs, viruses, and weed seeds are mixed, so it can be a hygienically safe recycling by-product. .

In the above, specific embodiments are shown and described. However, it is not limited to the above-described embodiments, and those skilled in the art can make various changes without departing from the gist of the technical idea of the invention as set forth in the claims below. .

1: Sludge supply unit 100: Dehydration unit
110: base frame 112: floor frame
114: support frame 120: dehydration body
122: Sludge inlet 130: Internal dewatering pipe
132: communication hole 134: discharge hole
140: transfer screw 142: screw wing
150: support plate 160: drive motor
170: support hinge 180: buffer pad
200: drying part 210: outer cylinder body
211a: upper space 211b: lower space
212: exhaust port 214: blocking plate
214a: drain hole 216: storage bin
220: Inner barrel screen body 230: Drive part
232: Drive shaft 240: Hot air means
242: blower 244: electric heater
246: Hot air supply pipe

Claims (3)

A dewatering unit that moves and compresses the sludge supplied through the sludge supply unit within a cylindrical dewatering main body to separate moisture contained in the sludge, and moves the center of gravity to tilt the dehydrating main body to separate and discharge the sludge and moisture, and
It is installed in close proximity to the dehydration unit, the moisture introduced from the dehydration unit is stored separately, and the sludge includes a drying unit for drying the sludge with hot air while rotating eccentrically,
The dehydration unit,
A base frame supported on the floor,
The dewatering body is installed on the base frame in the form of a hollow cylinder with one end open, and a sludge inlet is installed on the upper surface of the cylinder;
An internal dewatering pipe installed concentrically inside the hollow dehydrating main body, having a cylindrical shape whose inner diameter gradually narrows as it approaches the drying unit, and having a plurality of drain holes formed in a certain area,
It is rotated and driven by a drive motor installed in the dewatering main body, and is located at the inner center of the internal dewatering pipe to move the sludge forward, compressing the sludge by the narrowing width of the internal dewatering pipe and opening the drain hole. A transfer screw that discharges moisture through
A support hinge supported on the base frame and connected to the dehydration main body so that the dewatering main body is tilted toward the drying unit around the fulcrum due to movement of a force point as the sludge moves forward within the internal dewatering pipe;
Dewatering and drying device for recycling wastewater sludge containing into eco-friendly materials.
◈Claim 2 was abandoned upon payment of the setup registration fee.◈ According to paragraph 1,
The support hinge is installed to move from the center of the dewatering main body to one side, and the dewatering main body is tilted to the side where the drive motor is installed before moving the sludge. Dewatering and recycling for recycling wastewater sludge into eco-friendly materials. Drying device.
According to paragraph 1,
The drying part,
An outer cylinder body in which moisture flows into the dehydration body and a storage tank for storing the introduced moisture is provided at the lower portion;
An inner cylinder screen body installed inside the outer cylinder body, filled with the sludge, and dewatered and dried through a rotating operation,
A driving unit that is eccentrically installed on the inner screen body and rotates eccentrically, and
A hot air means for supplying hot air through the outer cylinder body toward the inner cylinder screen body,
Dewatering and drying device for recycling wastewater sludge containing into eco-friendly materials.