KR20000004192U - Apparatus for crushing sludge dryness system - Google Patents

Abstract

The present invention is a sludge drying system configured to dry sludge by evaporating water from sludge crushed to a predetermined size by using hot air introduced from an external heat source, and the upper and lower ends of the tubular body are opened so that hot air is introduced into and discharged from the inside. Wow; A net body disposed perpendicular to the inside of the cylinder and having upper and lower ends opened; One side is fixed to the outside of the mesh body, the other side is the network support member is fixed to the inside of the cylinder; A rotating shaft rotatably installed by a separate driving source inside the mesh; A sludge crushing blade which is installed radially on the outer circumferential surface of the rotating shaft, and is formed such that a plurality of layers are formed in the axial direction so as to crush sludge introduced and dropped from the upper side of the cylinder when the rotating shaft is rotated; It is installed on the lower end of the cylinder is formed by a sludge drop hole formed so that the sludge of the size smaller than the size of the initial sludge is introduced into the crushed by the sludge crushing blades formed; characterized in that it comprises a. By constructing as described above, the sludge containing a certain size and a certain moisture is supplied to the crushing wing that is rotating to supply hot air from an external heat source in the process of crushing finely, so that the water content of the sludge can be close to zero. do.

Description

Crusher of Sludge Drying System {APPARATUS FOR CRUSHING SLUDGE DRYNESS SYSTEM}

The present invention relates to a crushing apparatus of a sludge drying system, and more particularly, by supplying hot air from an external heat source in the process of finely crushing the sludge containing a certain size and a certain moisture to the rotating crushing wing, The present invention relates to a crushing apparatus of a sludge drying system, which allows the sludge to have a water content close to zero.

In recent years, treatment facilities such as sewage, wastewater end, livestock and manure have been continuously expanded due to population growth, industrial facilities, etc., and sludge generated in the treatment facilities described above is an environmental problem. Among the various adverse effects, how to treat sludge has emerged as a big issue.

As a result, most of the sludge treatment is landfilled or dumped at sea.

The treatment of sludge in the manner described above causes the environmental pollution due to the lack of landfill and further heavy metals contained in the sludge, so that future landfilling or dumping is not legally allowed.

Therefore, we are actively seeking an alternative method of incineration by changing the treatment of sludge.

Incineration should be carried out in a state where the sludge is dried under conditions that must be combined to incinerate sludge in the above-described manner.

Here, drying the sludge means minimizing the water content of the sludge.

In order to reduce the water content of the sludge, which is the most common at present, incineration is performed after dehydration of the water to 80% to 90% by using a mechanical or physical method.

By the way, the sludge should be completely dried before incineration, but at present the method using the dehydration can not reduce the water content to almost 0%, there was a problem that incineration takes a long time in the end.

In order to solve such a problem, incineration is performed after drying using a predetermined drying apparatus before incineration of sludge.

In the above-described conventional drying apparatus, the sludge is dried using hot air generated from a heat source provided separately, for example, a burner, to dry the sludge, and the drying chemical is mixed with the sludge during drying.

According to the conventional method as described above, since the means for generating the hot air required for drying the sludge uses fuel such as diesel, such as, there is a problem that the consumption of fuel is increased to operate it.

In addition, when the sludge is dried out of the sludge to the outside of the drying apparatus is discharged odor without filtration, there was also a problem that adversely affects the environment.

Therefore, the present applicant has developed a sludge drying system that solves all the problems of the conventional sludge drying apparatus and disclosed a domestic patent application as the same.

Looking at the sludge drying system developed by the present applicant and applied for the same patent briefly, the sludge supply means for supplying the sludge introduced in a state containing a certain amount of water, and the sludge supplied by the sludge supply means at least two stages A multi-stage sludge crushing means for crushing sludge to a size smaller than the initially introduced state by falling through the above step, a sludge discharge means for transferring the crushed sludge passed through the multi-stage sludge crushing means and discharged to the outside, and an external heat source Water evaporation means for evaporating water from the sludge present in the multi-stage sludge crushing means and sludge discharge means by diverting at least two hot air generated from the multi-stage sludge crushing means and sludge discharge means And multilevel slender Deodorization means for removing odor from hot air discharged through the paper crushing means and sludge discharge means, and hot air forced transfer means for forcibly conveying the hot air discharged from the multi-stage sludge crushing means and sludge discharge means to the deodorizing means side consist of.

The same applicant application of the present applicant to dry the sludge by evaporating the water in multiple stages from the sludge conveyed in multiple stages using hot air generated in the incinerator used in the incineration of the sludge from the problems with the conventional sludge drying apparatus In addition, the odor generated during drying of the sludge can be removed, and the dried and crushed sludge can be used as fuel of the incinerator again.

Therefore, the present invention is more specific in the configuration of the first sludge crushing means constituting the multi-stage sludge crushing means of the sludge drying system filed by the applicant of the present application to the crushed wing in which the sludge containing a certain size and a certain moisture is rotated It is an object of the present invention to provide a crushing apparatus of a sludge drying system which makes it possible to bring the water content of the sludge to near zero by supplying hot air from an external heat source during the fine crushing process.

1 is a crushing apparatus of a sludge drying system according to an embodiment of the present invention

Section showing the composition.

2 is a plan view of FIG.

Figure 3 is a sectional view showing another embodiment of the shredding apparatus of the present invention.

4 is a plan view of FIG.

<Description of the symbols for the main parts of the drawings>

1: cylinder 2: mesh

3: sludge guide member 4: network support member

5: rotating shaft 6: sludge crushing wing

7: plate 71: sludge dropping hole

The present invention for achieving the above object, in the sludge drying system configured to dry the sludge by evaporating the water from the sludge crushed to a predetermined size using the hot air flowing from the external heat source, the hot air flows into the interior A cylindrical body having upper and lower ends opened so as to be discharged; A net body disposed perpendicular to the inside of the cylinder and having upper and lower ends opened; One side is fixed to the outside of the mesh body, the other side is the network support member is fixed to the inside of the cylinder; A rotating shaft rotatably installed by a separate driving source inside the mesh; A sludge crushing blade which is installed radially on the outer circumferential surface of the rotating shaft, and is formed such that a plurality of layers are formed in the axial direction so as to crush sludge introduced and dropped from the upper side of the cylinder when the rotating shaft is rotated; It is installed on the lower end of the cylinder is formed by a sludge drop hole formed so that the sludge of the size smaller than the size of the initial sludge is introduced into the crushed by the sludge crushing blades formed; characterized in that it comprises a.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the crushing device of the sludge drying system according to the present invention in detail as follows.

1 is a cross-sectional view showing the configuration of a crushing device of a sludge drying system according to an embodiment of the present invention, Figure 2 is a plan view of FIG.

At the point of predetermined height from the ground, the cylindrical cylinder 1 which has a fixed length in the vertical direction is fixedly installed.

The cylinder 1 has an upper and lower end opening therein, and hot air supplied from an external heat source is opened through the interior of the cylinder 1 at an upper portion through a portion opened downward in the direction of the solid line arrow shown in the drawing. Is moved to the part and discharged.

Hot air flow duct 10 is fixed to the outside of the cylinder body 1 to flow the hot air discharged to the upper side of the cylinder body 1, the hot air induction duct 10 is substantially cylindrical in the predetermined shape of the cylinder 1 To form a space.

In the upper side of the hot air induction duct 10, a sludge inlet 8 for injecting sludge containing a certain amount of water in the direction of the solid arrow is provided.

Inside the cylinder 1, the net body 2 with the upper and lower ends opened is vertically arranged via a predetermined net support member 4.

The network 2 serves to allow hot air introduced from the lower part of the cylinder 1 to flow to the side.

One side of the mesh support member 4 is fixed to the outside of the mesh 2, and the other side has a rod shape fixed to the inside of the cylinder 1 by bolts 41 or the like.

The rotating shaft 5 is installed inside the mesh 2 so as to be rotatable by a driving motor which is a separate driving source (not shown).

Here, the position where the drive motor is installed is installed on the upper side of the sludge inlet 8 described above, the rotary shaft 5 is not shown in the drawing so that the drive force of the drive motor is transmitted, but the sludge inlet 8 It is preferable to set it as the length which fully protrudes outward.

The sludge crushing blade 6 is fixedly installed on the outer circumferential surface of the rotary shaft 5.

The sludge crushing blades 6 are installed radially on the outer circumferential surface of the rotary shaft 5, and are installed to form a plurality of layers spaced apart by a predetermined height h in the axial direction of the rotary shaft 5, so that when the rotary shaft rotates The sludge introduced and dropped from the upper side of (1) is crushed.

A plate 7 having a sludge drop hole 71 is fixedly installed at the lower end of the cylinder 1 so that sludge having a size smaller than the size of the sludge initially introduced by the sludge crushing blade 6 is naturally dropped.

Here, the diameter of the sludge drop hole 71 is formed so that the sludge crushed by the sludge crushing blades 6 of the lowermost can sufficiently fall.

Reference numeral 3 is a hot air guide portion installed in the upper end of the cylinder (1), 9 is a hot air outlet, 61 is a crushing blade shaft, 62 is a bolt coupling hole for bolting the crushing blade shaft and the rotating shaft (5) bolted to be.

3 is a cross-sectional view showing another embodiment of the shredding apparatus of the present invention, and FIG. 4 is a plan view of FIG. 3, and only different parts from those of FIGS. 1 and 2 described above will be described.

The sludge crushing blades 6 are installed at an outer side of the rotary shaft 5 at a predetermined angle, and the sludge auxiliary crushing blades 11 are installed perpendicular to the sludge crushing blades 6.

Preferably, the auxiliary crushing blades 11 are fixedly installed at each end of the sludge crushing blades 6 and are installed adjacent to the inner side of the net body 2.

Here, in the above description, in Fig. 1 and Fig. 2, the plate 7 having the sludge drop hole 71 is formed at the lower end of the cylinder 1, and the plate 7 is not provided in Fig. 2. Not shown as not.

However, of course, the plate 7 can also be provided in the lower end part of the cylinder 1 in FIG.

Referring to the operation of the shredding apparatus according to the present invention configured as described above are as follows.

First, the sludge is formed in the sludge inlet 8 provided on the upper side of the hot air induction duct 10, and the sludge containing a predetermined amount of water is introduced in the direction of the solid arrow shown.

The sludge injected into this sludge inlet 8 falls naturally.

Sludge falling to a predetermined size as described above is received by the driving force of the drive motor which is a separate drive source is slated to the sludge crushing blade 6 installed on the rotating shaft (5).

Since the sludge crushing blades 6 are provided in plural layers in the axial direction of the rotary shaft 5, the sludge is crushed by the uppermost sludge crushing blades 6 and reaches the lowest sludge crushing blades 6 while falling. During the process, the final sludge is crushed to a smaller size than the initial charged state.

On the other hand, the sludge crushed by the sludge crushing blade 6 is spread in the direction orthogonal to the axial direction of the rotary shaft 5 toward the auxiliary crushing blade 11 by the centrifugal force generated by the high speed rotation of the rotary shaft 5 and eventually. Is crushed finely to fall on the side of the auxiliary crushing blade (11).

Here, the auxiliary crushing wing 11 rotates to serve as a scraper to scrape the sludge existing inside the net body (2).

That is, since the sludge spreads in the direction orthogonal to the axial direction by the centrifugal force while passing through the sludge supporting blade 6, and reaches the net body 2, the sludge that has reached the net body 2 should be removed.

On the other hand, during the crushing process of the sludge, hot air is supplied from an external heat source, and this hot air flows from the lower side of the cylinder 1 in the direction of the solid arrow in the direction A in the drawing to be raised into the cylinder 1. After being discharged to the upper side of the cylinder (1) is guided along the hot air guide portion (3) and flows in the order to be discharged to the hot air outlet 9 of the hot air induction duct 10 in the B direction.

As described above, the hot air is heat-exchanged with the sludge being crushed as it flows from the outside into the cylinder 1 and the net 2, and eventually evaporates moisture from the sludge.

In addition, since the size of the sludge is gradually broken into small states, the heat exchange efficiency with the hot air is increased to increase the amount of water evaporated from the sludge.

Therefore, the sludge which is naturally dropped and discharged to the lower portion of the cylindrical body is crushed to have a smaller water content than the initial input state, and a water content closer to zero than the initial input state.

According to the present invention configured as described above, by supplying hot air from the external heat source in the process of being finely crushed by the sludge containing a constant size and a certain moisture to the rotating blades, the water content of this sludge to close to zero You can do it.

Claims (2)

In the sludge drying system configured to dry the sludge by evaporating water from the sludge crushed to a predetermined size by using hot air flowing from an external heat source, A cylinder (1) having upper and lower ends opened so that the hot air is introduced into and discharged from the inside; A net body 2 disposed perpendicularly to the inside of the cylinder 1 and having an upper and lower end opened therein; One side is fixed to the outside of the mesh (2), the other side is fixed to the inside of the cylindrical body (1) support member 4 and; A rotating shaft 5 installed rotatably by a separate driving source inside the mesh 2; A plurality of radially installed on the outer circumferential surface of the rotary shaft 5, is installed so that a plurality of layers are formed in the axial direction to crush the sludge introduced and dropped from the upper side of the cylinder (1) during the rotation of the rotary shaft. Sludge crushing blade (6) for; A plate (7) formed at the lower end of the cylinder (1) and formed with a sludge drop hole (71) so that sludge having a size smaller than the size of the initial sludge that is crushed by the sludge crushing blade (6) is naturally dropped. Crushing device of the sludge drying system, characterized in that made. The method of claim 1, The sludge crushing blade (6) is installed on the outside of the rotary shaft (5) at a predetermined angle twist, the sludge auxiliary crushing blade (11), characterized in that the sludge crushing blade (11) is installed perpendicular to the sludge crushing blade (6). Crusher.