KR102465948B1 - Sludge drying device with fine adjustment of paddle direction - Google Patents

Abstract

The present invention is to provide a sludge drying apparatus in which the direction of a paddle is finely adjusted for effective drying in consideration of the properties and moisture content of continuously introduced sludge. According to the present invention, the sludge drying apparatus includes: a drying drum (100) which is seated on a support roller (120) to be rotated by a driving unit, has sludge inlets and outlets (101, 102) formed at both ends, and includes a plurality of lift blades (130) for upward transporting the sludge on an inner circumferential surface; and a paddle axis (200) installed at the rotation center and eccentric position of the drying drum (100) to be rotated by the driving unit, and provided with a plurality of paddle members (210) to strike and crush the sludge which falls after being transported upward by the lift blade (130). The paddle member (210) includes paddle shafts (212) formed on the outer circumferential surface of the paddle axis (200) at a predetermined interval to be separated, a concave-convex unit (214) formed at an end of the paddle shaft (212), a knob cap (215) having a corresponding concave-convex unit (216) formed therein to be installed so as to be angle-adjustable by engaging with the concave-convex unit (214), and a paddle (218) installed on the knob cap (215).

Description

Sludge drying device with fine adjustment of paddle direction {Sludge drying device with fine adjustment of paddle direction}

The present invention relates to a sludge drying apparatus in which the paddle direction is finely controlled, and more specifically, it relates to a sludge drying apparatus in which the paddle direction is finely adjusted, which can effectively dry sludge in consideration of the properties and moisture content of continuously introduced sludge.

Usually, sludge, which is waste, is generated in the microbial treatment process of various water treatment processes at sewage wastewater treatment plants. This sludge is mainly composed of microorganisms and is necessarily generated in the advanced treatment process or activated sludge process. Or landfill or carbonization.

In addition, due to the increase in the dosage of chemical additives including coagulants in water purification and sewage wastewater treatment processes, as well as sewers, sewage treatment plants, septic tanks, factories or barns, the amount of sludge produced is rapidly increasing.

On the other hand, the treatment of sludge generated in sewage or wastewater treatment plants is very insufficient, and it is necessary to develop a system to effectively treat increasingly increasing industrial waste. In particular, technology to minimize moisture content for recycling organic industrial waste this was requested

Accordingly, in Patent Registration No. 10-0591201 disclosed in the prior art, a drying drum rotatably installed on a base, a supply table and a discharge pipe installed in a sealing cap sealing the front and rear sides of the drying drum, and installed inside the drying drum. Although a technology consisting of a rotating piece for crushing driven by a rotating shaft and a burner for spraying hot air into the drying drum has been previously suggested, since the sludge continuously introduced through the supply table falls in the form of lumps, crushing There was a problem that it was difficult to expect a crushing effect in reality because the dragon rotating piece was overloaded.

In addition, in Patent Registration No. 10-1792782, which is another prior art, the unit sludge drying unit has a certain interval inside the drying body and is arranged in a plurality of layers having a zigzag shape, the unit sludge drying unit has a tube on one side of the drying tube A dry sludge inlet is formed, a tube dry sludge outlet is formed on the other side, a sludge feeding shaft having a paddle or screw is formed inside the drying tube, and a reduction drive unit is provided outside the drying tube to remove the sludge A feeding shaft is coupled, a heated air inlet is formed close to the tube dry sludge outlet, and a dry gas outlet through which dry gas containing wet steam is discharged is connected to the odor decomposition unit close to the tube dry sludge outlet The heated air inlet is pre-registered, characterized in that the heat exchanged heated air is supplied by the dry heat exchange unit provided on the lower or upper part of the drying body, but the paddle installed on the sludge feeding shaft It is fixedly installed at a predetermined angle of inclination, resulting in a problem in that it is impossible to control the feeding speed in response to the sludge properties and moisture content.

KR 10-0591201 B1 (2006.06.12.) KR 10-1792782 B1 (2017.10.26.)

In the present invention, a new technology has been invented to solve all the problems of the prior art, and the structure is improved to simply and precisely control the angle of the paddle rotatably installed inside the drying dream, thereby improving the properties and moisture content of the sludge. It is an object to be solved by the present invention to provide a sludge drying apparatus in which the direction of the paddle is finely adjusted, which can maximize drying efficiency under optimized conditions.

As a specific means for solving the above problems of the present invention, in the present invention, a sludge drying apparatus in which the direction of the paddle is finely adjusted is configured, but it is seated on the support roller 120 and rotated by the drive unit, and the sludge inlet and outlet at both ends (101) (102) is formed, the drying drum 100 is provided with a plurality of lift blades 130 for transporting the sludge upward on the inner circumferential surface; and

Paddles provided with a plurality of paddle members 210 installed at the rotational center and eccentric position of the drying drum 100, rotated by a drive unit, and hit and crush sludge that falls after being transported upward by a lift blade 130 Shaft 200; including,

The paddle member 210 includes a paddle shaft 212 spaced apart from a predetermined interval on the outer circumferential surface of the paddle shaft 200, a concave-convex portion 214 formed at an end of the paddle shaft 212, and the concave-convex portion 214 ) and a knob cap 215 having a corresponding concavo-convex portion 216 formed therein so as to be installed so as to be angle-adjustable, and a striking bar installed on the knob cap 215 and disposed to cross the paddle shaft 212. It is characterized in that it consists of a paddle 218 including (218c).

At this time, grooves parallel to the longitudinal direction of the paddle shaft 212 are densely formed on the concave-convex portion 214, and the corresponding concave-convex portion 216 formed inside the knob cap 215 corresponding thereto also has grooves in the longitudinal direction. It is characterized in that parallel grooves are densely formed.

In addition, the concave-convex portion 214 is formed as a radial concave-convex surface 222 in which protrusions and grooves having a constant pitch are provided alternately in a radial direction from the end surface of the paddle shaft 212, and on the inner bottom surface of the knob cap 215. It is characterized in that a radial concave-convex surface 222 of the same standard is formed so as to correspond to the radial concave-convex surface 222.

In addition, the paddle 218 is inserted into a pair of support plates 218a having one end fixed to the knob cap 215 and having a plurality of mounting grooves 218b formed on the other end, and the mounting groove 218b. It includes a plurality of striking rods 218c that are fixed, and the plurality of striking rods 218c are formed with different inclinations based on one end, and each striking rod 218c moves sludge at different inclination angles. It is characterized in that it is provided to hit in.

In addition, the angle of the paddle 218 coupled to the paddle shaft 200 is characterized in that the inlet 101 side and the outlet 102 of the drying drum 100 are provided differently from each other.

According to the specific means for solving the above-described problems, the present invention can simply and precisely control the angle of the paddle installed on the paddle axis rotating eccentrically inside the dry dream, so that under conditions optimized for the properties and moisture content of the sludge It has the effect of maximizing the drying efficiency.

1 is a front configuration diagram showing a preferred embodiment of a sludge drying apparatus in which the paddle direction is finely adjusted provided by the present invention.
Figure 2 is a configuration diagram showing the sludge drying apparatus in which the direction of the paddle is finely adjusted according to an embodiment of the present invention in a plan view as a whole.
Figure 3 is a block diagram showing the internal operating structure from the side of the sludge drying apparatus in which the direction of the paddle is finely adjusted according to an embodiment of the present invention.
4 is a configuration diagram showing a paddle member of a sludge drying apparatus in which the direction of the paddle is finely adjusted according to an embodiment of the present invention.
5 is a configuration diagram showing a disassembled paddle member of a sludge drying apparatus in which a paddle direction is finely adjusted according to an embodiment of the present invention.
6 is an enlarged perspective view of another embodiment of a paddle shaft in the drying apparatus of the present invention.
7 is a configuration diagram showing the adjustment state of each pair of paddle members of the sludge drying apparatus in which the direction of the paddle is finely adjusted according to an embodiment of the present invention.
8 is a configuration diagram showing a state in which striking rods constituting a unit paddle are arranged at different angles in the sludge drying apparatus of the present invention.

Hereinafter, the present invention will be described in more detail according to specific embodiments of the accompanying drawings. Technical terms used in this specification are terms selected in consideration of functions in embodiments, and the meanings of the terms may vary depending on specific embodiments of the invention. And throughout the specification, when a part is said to be "connected" to another part, this includes not only the case of being "directly connected" but also the case of being "indirectly connected" with another member interposed therebetween. do.

1 is a front configuration diagram showing a preferred embodiment of a sludge drying apparatus in which the paddle direction is finely adjusted provided by the present invention, Figure 2 is a plan configuration diagram of the sludge drying apparatus of the present invention, and Figure 3 is a sludge drying apparatus of the present invention It is a configuration diagram showing the internal operating structure of the drying device from the side.

The present invention relates to a sludge drying apparatus in which the paddle direction is finely adjusted, which is a sludge drying apparatus comprising a drying drum 100 and a paddle shaft 200, wherein the paddles installed on the paddle shaft 200 It is characterized by providing an improved structure so that the direction can be easily and precisely controlled.

1 and 2, the drying drum 100 according to the present invention is seated on a support roller 120 and is rotated by a driving unit, and sludge inlets and outlets 101 and 102 are formed at both ends, , A plurality of lift blades 130 for upward transporting sludge are provided on the inner circumferential surface.

The drying drum 100 is formed of a hollow cylindrical tube, has an insulation layer formed on an outer circumferential surface, is rotatably supported by a plurality of support rollers 120, and is driven by chains, belts, and gears connected to the outer circumferential surface. It is provided so as to be rotated by a driving unit including a.

As shown in FIG. 3, the lift blades 130 are radially disposed on the inner circumferential surface of the drying drum 100 to rotate and transport the lower sludge in a rotational direction.

Accordingly, when the drying drum 100 rotates, the sludge accommodated therein is transported upward by the lift blade 130, and then the agitation action of falling downward from a predetermined height by gravity is performed. At this time, the gravity direction The sludge falling into the sludge is dried and transported while being crushed while repeating the process of hitting the paddle member 210 described later.

Meanwhile, the lift blades 130 are divided and disposed in the longitudinal direction in the inner area of the drying drum 100. In addition, the lift blades 130 adjacent to each other are arranged to be inconsistent on a straight line (inconsistent when viewed in a longitudinal section), and the lift blades 130 adjacent to the inlet side of the drying drum 100 described later are arranged at an inclination angle, so that the lift blade While the sludge is being transported upward by the 130, it is provided to be inclinedly transported along the inclined surface toward the outlet of the drying drum 100.

In addition, a front cover part 300 is installed at the inlet side of the drying drum 100, and the front cover part 300 is installed to accommodate the inlet area of the drying drum 100 and is airtightly treated by a sealing member. A nozzle member 310 for distributing and injecting sludge in a direction and an inlet port 320 for supplying hot air are provided.

Here, the nozzle member 310 is spaced apart from the main tube body to which sludge is supplied, an expansion tube formed at the end of the main tube body to diffuse and accommodate the sludge, and spaced apart from the expansion tube, and the end protrudes into the drying drum to remove the sludge It may be configured to include a plurality of nozzles (multi-nozzle) for dispersing and discharging.

The multi-nozzle is formed with a protruding length stepwise from the bottom to the top, so that the sludge falling points supplied through each nozzle are differently spaced apart from each other.

In this way, while the sludge is transported through a single main pipe, it is dispersed and extruded by a plurality of nozzles in a relatively reduced cross-sectional area, and at this time, due to the different lengths of the nozzles, the surface area exposed to the hot air is expanded while being dispersed so that the falling points do not overlap As a result, there is an advantage in that the drying efficiency by direct heat (hot air) is highly improved.

A rear cover part 400 is installed on the outlet side of the drying drum 100, and the rear cover part 400 is installed to accommodate the outlet side of the drying drum 100 and is hermetically sealed by a sealing member, and dried sludge at the bottom A discharge port for discharging the air and an exhaust port for discharging waste dry air are formed at the top.

The paddle shaft 200 according to the present invention is installed at an eccentric position with the center of rotation of the drying drum 100, is rotated by a driving unit, and is transported upward by a lift blade 130 and then dropped to strike and crush sludge. Of the paddle member 210 is provided.

Referring to FIG. 3 , the paddle shaft 200 rotates in the same direction as the drying drum 100, but the paddle shaft 200 rotates at a higher speed than the drying drum 100.

And, the rotation radius of the paddle member 210 is installed biased to the left when viewed from the drawing so that the sludge passes through an area where the sludge falls after being transported upward by the lift blade 130.

Accordingly, while the sludge is transported upward along the lift blade 130 by the rotational motion of the drying drum 100 and then dropped, the paddle member 210 strikes the sludge in an upward direction to finely disperse the drying drum 100 It is provided to move slightly toward the exit side.

In order to move the sludge to the outlet side by hitting the paddle member 210, the installation direction and angle of the paddle 218 to be described later must be finely adjustable, and a detailed configuration for this will be described with drawings.

4 is a configuration diagram showing a paddle member of a sludge drying apparatus in which a paddle direction is finely adjusted according to an embodiment of the present invention, and FIG. 5 is a configuration diagram showing a disassembled paddle member of the sludge drying apparatus.

The paddle member 210 includes a paddle shaft 212 spaced apart from a predetermined interval on the outer circumferential surface of the paddle shaft 200, a concave-convex portion 214 formed at an end of the paddle shaft 212, and the concave-convex portion 214 ) includes a knob cap 215 having a corresponding concave-convex portion 216 formed therein so that the knob cap 215 is inserted and interlocked, and a paddle 218 installed on the knob cap 215. At this time, the angle of the knob cap 125 can be adjusted according to a meshing angle at which the concave-convex portion 214 and the corresponding concave-convex portion 216 are engaged.

The concave-convex portion 214 and the corresponding concave-convex portion 216 may be formed in a spline shape or in the form of a serration having a fine and constant pitch as shown in FIG. 5 . Specifically, grooves parallel to the longitudinal direction of the paddle shaft 212 are densely formed on the concave-convex portion 214, which is the end of the paddle shaft 212, and the corresponding concave-convex portion formed inside the knob cap 215 corresponding thereto ( 216) are also densely formed with parallel grooves in the longitudinal direction.

Also, the concave-convex portion 214 and the knob cap 215 are provided to be restrained by a fixing means. For example, a through hole into which a fixing bolt is inserted is formed in the knob cap 215, and a female screw is formed in the center of the paddle shaft 212, so that the knob cap 215 is detachably assembled by the fixing bolt and the uneven portion of the paddle shaft 212. If the fixing bolt is fastened in a state where the knob cap 215 is coupled to 214, the paddle shaft 200 can maintain a solid coupling state without shaking or falling out during operation.

6 is an enlarged perspective view of another embodiment of a paddle shaft in the drying apparatus of the present invention, wherein the concave-convex portion 214 is radially formed on the end surface of the paddle shaft 212 with protrusions and grooves having a constant pitch alternately. A radial concave-convex surface 222 of the same standard may be formed on the inner bottom surface of the knob cap 215 in which a through hole is formed so as to be coupled to the radial concave-convex surface 222 correspondingly. .

6, the direction (angle) of the paddle 218 can be changed by slightly lifting the knob cap 215 in a state in which the fixing bolt is loosened without separating the knob cap 215 from the paddle shaft 212. In that it can provide easier workability.

7 is a configuration diagram showing the adjustment state of each step of the paddle member of the sludge drying apparatus in which the direction of the paddle is finely adjusted according to an embodiment of the present invention. As a result, the angle of inclination of the paddle 218 is finely adjusted with respect to the axis of the paddle shaft 200. As shown in FIG. 7, the angle of the paddle 218 is adjusted according to the assembly angle of the corresponding uneven portion 216. And, as the angle of the paddle 218 increases, the sludge feeding speed increases.

Therefore, the drying apparatus of the present invention can accurately adjust the direction and angle of the paddle 218 according to the characteristics such as the properties or moisture content of the sludge to be dried and the RPM of the paddle shaft 200, so that optimal drying efficiency can be realized. there will be

5 to 7, the paddle 218 includes a pair of support plates 218a having one end fixed to the outer circumferential surface of the knob cap 215 and having a plurality of mounting grooves 218b formed on the other end. And, it is inserted and fixed into the mounting groove 218b and includes a plurality of striking rods 218c disposed to cross the paddle shaft 212.

The support plate 218a is formed in a plate shape and is provided so that the sludge can be cut when the sludge collides with the corner, and the striking rod 218c crushes the sludge in the form of a lump by impact to promote moisture evaporation, In addition, it acts to transport the sludge in the drying drum 100 to the outlet 102 side.

8 is a block diagram showing another embodiment of a paddle, showing a state in which striking rods constituting a unit paddle are arranged at different angles. That is, in the unit paddle 218 coupled to one paddle shaft 212, a plurality of striking rods 218c are arranged at different inclination angles.

Based on the view of the paddle 218 from the axis of the paddle shaft 212, the striking rods 218c may have different inclinations based on one end of the paddle shaft 212.

In this case, each hitting bar 218c is provided to hit the sludge at different angles of inclination, so that the sludge in the form of a lump is sequentially hit and scattered in different directions while falling downward, so that the scattered sludge is not biased to one side. The drying efficiency is improved by the action of scattering widely.

Meanwhile, the angles of the paddles 218 coupled to the paddle shaft 200 in the drying drum 100 may be provided differently for each section of the drying drum 100.

As an example, since the moisture content is high at the inlet 101 side of the drying drum 100, the angle between the striking rod 218c of the paddle 218 and the paddle shaft 200 is parallel or small to slow down the sludge progression. , It can be designed in the direction of gradually increasing the transfer speed by arranging the angle of the paddle 218 to gradually increase toward the exit 102 side.

Alternatively, a configuration in which a section in which the angle of the paddle 218 increases toward the outlet 102 side of the drying drum 100 and a section in which the angle is reduced is combined can be arranged, or in some sections, as shown in the embodiment of FIG. 8, each blow It can be designed to increase the dispersion effect by forming different installation angles of the rods 218c.

In this way, as the angle of the paddle 218 is differently arranged for each section in the inner space of the drying drum 100, the sludge transfer speed for each drying section is controlled differently, and the drying efficiency can be maximized under conditions optimized for the properties and moisture content of the sludge There is an advantage to being

As described above, the most preferred embodiment of the present invention has been described in the detailed description of the present invention, but various modifications may be made within a range that does not depart from the technical scope of the present invention. Therefore, the scope of protection of the present invention should not be limited to the above embodiments, but the scope of protection should be recognized from the techniques of the claims to be described later and from these techniques to equivalent technical means.

100: dry drum
101: entrance 102: exit
120: support roller 130: lift blade
200: paddle axis
210: paddle member 212: paddle shaft 214: uneven part
215: knob cap 216: corresponding uneven portion
218: paddle 218a: support plate 218b: mounting groove 218c: batting rod
222: radial concave surface
300: front cover 310: multi-nozzle member 320: inlet port
400: rear cover

Claims (6)

It is seated on a support roller 120 and rotated by a drive unit, sludge inlets and outlets 101 and 102 are formed at both ends, and a plurality of lift blades 130 for upward transporting sludge are provided on the inner circumference Drying drum 100; and
Paddles provided with a plurality of paddle members 210 installed at the rotational center and eccentric position of the drying drum 100, rotated by a drive unit, and hit and crush sludge that falls after being transported upward by a lift blade 130 Shaft 200; including,
The paddle member 210,
Paddle shafts 212 spaced apart from each other at predetermined intervals on the outer circumferential surface of the paddle shaft 200;
An uneven portion 214 formed at the end of the paddle shaft 212;
A knob cap 215 having a corresponding concave-convex portion 216 formed therein so that the concave-convex portion 214 is inserted into and interlocked with each other;
A fixing means for restraining the uneven portion 214 and the knob cap 215;
It is installed on the knob cap 215 and is composed of a paddle 218 including a striking rod 218c disposed to cross the paddle shaft 212,
Grooves parallel to the longitudinal direction of the paddle shaft 212 are densely formed on the concave-convex portion 214, and the corresponding concave-convex portion 216 formed inside the knob cap 215 corresponds to the grooves parallel to the longitudinal direction. Sludge drying apparatus in which the direction of the paddle is finely controlled, characterized in that the grooves are formed densely.
It is seated on a support roller 120 and rotated by a drive unit, sludge inlets and outlets 101 and 102 are formed at both ends, and a plurality of lift blades 130 for upward transporting sludge are provided on the inner circumference Drying drum 100; and
Paddles provided with a plurality of paddle members 210 installed at the rotational center and eccentric position of the drying drum 100, rotated by a drive unit, and hit and crush sludge that falls after being transported upward by a lift blade 130 Shaft 200; including,
The paddle member 210,
Paddle shafts 212 spaced apart from each other at predetermined intervals on the outer circumferential surface of the paddle shaft 200;
An uneven portion 214 formed at the end of the paddle shaft 212;
A knob cap 215 having a corresponding concave-convex portion 216 formed therein so that the concave-convex portion 214 is inserted into and interlocked with each other;
A fixing means for restraining the uneven portion 214 and the knob cap 215;
It is installed on the knob cap 215 and is composed of a paddle 218 including a striking rod 218c disposed to cross the paddle shaft 212,
The concave-convex portion 214 is formed as a radial concave-convex surface 222 in which protrusions and grooves having a constant pitch are alternately provided radially from the end surface of the paddle shaft 212,
Sludge drying device with finely adjusted paddle direction, characterized in that a radial concave-convex surface 222 of the same standard is formed on the inner bottom surface of the knob cap 215 to correspond to the radial concave-convex surface 222.
According to claim 1 or 2,
The paddle 218,
A pair of support plates 218a having one end fixed to the knob cap 215 and having a plurality of mounting grooves 218b formed on the other end;
A sludge drying apparatus in which the direction of the paddle is finely adjusted, characterized in that it includes a plurality of striking rods 218c inserted and fixed into the mounting groove 218b.
According to claim 3,
The plurality of hitting rods 218c are formed with different inclinations based on one end, and each hitting rod 218c has a fine paddle direction, characterized in that it is provided to hit the sludge at different angles of inclination. Controlled sludge dryer.
According to claim 1 or 2,
The angle of the paddle 218 coupled to the paddle shaft 200 is characterized in that the inlet 101 side and the outlet 102 of the drying drum 100 are provided differently from each other. Sludge drying with finely adjusted paddle direction Device.
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