WO2011099691A2

WO2011099691A2 - Dehydrating and evaporation-drying apparatus for sludge treatment

Info

Publication number: WO2011099691A2
Application number: PCT/KR2010/008726
Authority: WO
Inventors: 김미정
Original assignee: 주식회사 에이케이인터내셔널
Priority date: 2010-02-12
Filing date: 2010-12-08
Publication date: 2011-08-18
Also published as: WO2011099691A3; KR100976243B1

Abstract

The present invention relates to a dehydrating and evaporation-drying apparatus for sludge treatment. More particularly, the apparatus, into which sludge is introduced between a filtering belt and a high-temperature heat-generating roller, evaporation-dried, and dehydrated, comprises a sludge supply unit, a driving unit and a sludge discharge unit. The sludge supply unit includes a hopper into which sludge is injected, and a crush roller arranged beneath the hopper to crush sludge. The driving unit is arranged in the vicinity of the sludge supply unit, and includes: a driving roller which is directly connected to a motor and which to one side of which a driving gear is coupled; a high-temperature heat-generating roller, to one side of which a driven gear is coupled such that the driven gear engages with the driving gear to rotate together with the driving gear; and a filtering belt, which covers the circumferential surfaces of the driving roller and of the high-temperature heat-generating roller, so as to deliver the sludge supplied from the sludge supply unit such that the sludge can be compression-dehydrated and evaporation-dried. The sludge discharge unit includes a plurality of scrappers elastically and tightly contacting each other along the lengthwise direction of the high-temperature heat-generating roller, such that the scrappers are separable from each other and can scrap sludge compressed onto the high-temperature heat-generating roller.

Description

Dewatering and Evaporation Dryer for Wastewater Sludge Treatment

The present invention relates to a dewatering and evaporation drying apparatus for wastewater sludge treatment, and more particularly, to a dewatering and evaporation drying apparatus for wastewater sludge treatment that can discharge the sludge containing water by compression dehydration and evaporation to dryness.

In general, the industrial dewatering device is an industrial device for dewatering and draining the water contained in the sludge generated during the treatment of purified water, sewage, wastewater and the like.

And, to specify a conventional industrial dehydration device is described in the Republic of Korea Patent Registration No. 10-0877414 'industrial dehydration device having a high temperature heating roller'.

1 illustrates a conventional industrial dewatering apparatus having a high temperature heating roller, and is divided into a first primary dewatering means 100 and a second secondary dewatering means 200. First, the first primary dewatering means 100 is a sludge supply unit. It is supplied between the upper and lower filter belts 110 through 140 and depressurized. In addition,

reference numerals

120 and 130 are "S" -type belt presses that allow the upper and lower filter belts 110 to be installed in a zigzag.

Then, the sludge that passed through the first dehydration means 100 is introduced into the second dehydration means 200, which is the next step, the high temperature heat generating roller 220 consisting of a double roller so that the heat medium is introduced therein, reticular The filter belt 210 is to be rotated along the circumferential surface of the high temperature heat roller (220). And the sludge is introduced and discharged between the high temperature heating roller 220 and the filter belt 210 to further remove the water of the sludge. Here, the apparatus for pressurizing the high temperature heat roller 220 and the filter belt 210 is provided with a caterpillar 240, attach chain bracket 241, attach chain 242, attach plate 243 , The remaining suction device 250, the steam discharge device 260, the hopper 261 is provided to discharge the sludge moisture.

Figure 2 shows a detailed view of the conventional high temperature heating roller, the heating unit 230 is connected to the high temperature heating roller 220 consisting of a double roller is drawn and discharged along the heat medium passage 221 is the structure It is possible to heat transfer to the rotating circumferential surface of the high temperature heat roller (220).

However, the industrial dehydrator as in the prior art has a problem in the filter belt is damaged or sludge treatment efficiency due to the slipping phenomenon caused by the filter belt to drive the high temperature heat roller by friction of the filter belt.

In addition, the filter belt is damaged by the chain-type caterpillar for pressurizing the filter belt to the high temperature heat roller, and the caterpillar is pressurized entirely to the filter belt which is in contact with the high temperature heat roller, so that the sludge due to the type of sludge and the dehydration process If the amount of imbalance occurs, there has also been a problem in that it does not properly press the filter belt.

The present invention has been made in order to solve the above problems, to provide a dewatering and evaporation drying apparatus for wastewater sludge treatment that can directly drive the high temperature heat roller at the correct speed ratio to prevent the slip of the high temperature heat roller and the filter belt. Its purpose is to.

And, it is provided with a pressurizing means to minimize the damage of the filter belt, the sludge is introduced into the high temperature heating roller and the filter belt is compressed and dewatered and evaporated to dry and discharged, and partially pressurized to the filter belt according to the sludge imbalance. Another object of the present invention is to provide a dewatering and evaporation drying apparatus for wastewater sludge treatment.

In order to achieve the above object, the present invention provides a wastewater sludge treatment dewatering and evaporation drying apparatus in which sludge is introduced between a filter belt and a high temperature heating roller to be evaporated to dry and dehydrated. Sludge supply unit is composed of a crushing roller is provided with a sludge crushed finely, the drive roller is provided in the vicinity of the sludge supply unit is directly connected to the motor and coupled to the drive gear on one side, driven on one side so as to interlock rotation with the drive gear A high temperature heat generating roller coupled to a gear, a driving unit composed of a filter belt for compressing dewatering and evaporation drying of the sludge introduced from the sludge supply unit while surrounding the circumferential surfaces of the driving roller and the high temperature heat generating roller, and pressing the high heat generating roller. Elastically milled to be separated in the longitudinal direction to separate the sludge It characterized in that it comprises a sludge discharge portion consisting of a plurality of attached scraper.

Here, the high temperature heating roller, the receiving groove is formed in a straight or zigzag direction along the rotational circumferential surface, characterized in that the plurality of receiving grooves are arranged in the longitudinal direction of the high temperature heating roller.

In addition, the filter belt is characterized in that it is further provided with a pressure roller to partially adjust the pressing force to the high temperature heating roller.

And, the filter belt is further provided with a tension adjustment portion consisting of a pinion coupled to the shaft over the filter belt, a rack for guiding the pinion left and right, the balance weight to move the pinion left and right to adjust the tension of the filter belt It is characterized by.

Finally, the sludge discharge portion is characterized in that the plurality of screws are further provided to be movable while the sludge separated from the scraper is crushed.

According to the present invention of the configuration described above, the following effects can be expected.

First, power is directly transmitted to the high temperature heat roller by gear engagement, thereby preventing the slip phenomenon between the filter belt and the high temperature heat roller.

In addition, since the conventional caterpillar having a pressure roller on the circumferential surface of the high temperature heating roller becomes unnecessary, the caterpillar pressurizing the filter belt to the high temperature heating roller becomes unnecessary, thereby preventing damage to the filtering belt due to friction between the caterpillar and the filtering belt. And there is also an effect that can be partially pressurized as necessary to the filter belt in close contact with the high temperature heating roller by the sludge imbalance.

1 is a block diagram of an industrial dehydration apparatus having a high temperature heating roller according to the prior art.

Figure 2 is a detailed view showing the configuration of a conventional high temperature heating roller.

Figure 3 is a block diagram of a dewatering and evaporation drying apparatus for wastewater sludge treatment according to a preferred embodiment of the present invention.

4 is a plan view of the high temperature heating roller and the driving roller of FIG.

Figure 5 (a), (b) is an illustration of the receiving groove of the high temperature heating roller of FIG.

Figure 6 (a), (b) is a detail and side view of the pressure roller of Figure 3;

Figure 7 is a detail view of the tension control of Figure 3;

8 is a detail view of the scraper of FIG. 3.

9 is a detailed view of the sludge discharge portion of FIG.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

First, Figure 3 shows the overall configuration of the dewatering and evaporation drying apparatus for wastewater sludge treatment according to a preferred embodiment of the present invention.

3, in the dewatering and evaporation drying apparatus for wastewater sludge treatment in which sludge is introduced between a conventional filter belt and a high temperature heating roller by evaporation drying and dehydration, the present invention is largely provided with a sludge supply unit 100 and a driving unit 200. ) And the sludge discharge part 300.

First, the sludge supply unit 100 is a hopper 120 into which sludge is introduced into the dewatering and evaporation drying apparatus for wastewater sludge treatment from the outside, and the sludge supplied from the hopper 120 is provided below the hopper 120. It is composed of a shredding roller 140 to be shredded to a predetermined size to be supplied to the drive unit (200).

The drive unit 200 is largely composed of a driving roller 240, a high temperature heating roller 260 and a filtration belt 280 to compress and dewater and evaporate the sludge supplied from the sludge supply unit 100.

The driving roller 240 is to drive the high temperature heat roller 260 and the filter belt 280 is located above the inlet of the high temperature heat roller 260.

Here, the inlet portion of the high temperature heat roller 260 refers to a position where the filter belt 280 and the high temperature heat roller 260 are compressed, and a sludge is formed between the high temperature heat roller 260 and the filter belt 280. This is where you will be introduced.

The high temperature heating roller 260 is rotatable by receiving power from the driving roller 240 and heat-transfers to the sludge accommodated in the inlet of the high temperature heating roller 260 to evaporate to dry.

Here, the high temperature heat roller 260 is composed of a double roller for maintaining a high temperature, the heating system through its internal configuration and the heat medium will be omitted as applied in the same manner as described above in the prior art.

The filter belt 280 wraps around the circumferential surfaces of the driving roller 240 and the high temperature heating roller 260 and moves the sludge introduced from the sludge supply unit 100 to the high temperature heating roller 260 to compress and dewater. It is for enabling evaporation and drying, which is the same as a conventional filter belt.

On the other hand, according to a preferred embodiment of the present invention, the filter belt 280 is positioned so that the sludge passed through the sludge supply unit 100 can be introduced in the horizontal direction with the center point of the high temperature heat roller 260, the high temperature heat roller The circumferential surface of 260 is wrapped in a counterclockwise direction, and then, the circumferential surface of the drive roller 240 is sequentially wrapped in a clockwise direction, thereby rotating while forming an endless track.

At this time, the heat transfer time that the hot heat roller 260 can be applied to the sludge per revolution by bringing the drive roller 240, which is the evaporated and dried sludge discharge point, as close as possible to the inlet of the hot heat roller 260 as much as possible. And the heat transfer effective cross-sectional area can be maximized.

Here, the filter belt 280 is further provided with a pressure roller 400 to partially adjust the compressive force to the high temperature heat roller 260, so that the partial pressure is made according to the sludge characteristics to improve the drying effect. It can be done.

In addition, the filter belt 280 to the left and right guide pinion 520, the pinion 520 is coupled to the shaft that is located in the lower direction of the sludge supply unit 100 to the filter belt 280 to adjust the tension. Retention 540, the pinion 520 is moved to the left and right, characterized in that the tension control unit 500 is composed of a balance weight 560 capable of adjusting the tension of the filter belt 280.

Finally, the sludge discharge part 300 is composed of a plurality of scrapers 320 are elastically in close contact detachably in the longitudinal direction so that the sludge pressed on the high temperature heat roller 260 can be peeled off.

Here, the sludge discharge part 300 is located below the drive roller 240 to accommodate not only sludge peeling compressed on the high temperature heating roller 260 but also sludge attached to the filter belt 280. It is desirable to.

As mentioned above, preferred embodiments of the present invention have been described with reference to FIG. 3, and each component will be described in more detail with reference to the accompanying drawings as necessary.

Figure 4 shows a plan view of the high temperature heating roller and the driving roller of Figure 3, first, as shown, the driving roller 240 is a cylindrical roller rotatable directly connected to the motor 220, the driving on one side Gear 242 is to be coupled, where the reducer 222 is coupled between the motor 220 and the drive roller 240 is preferably able to adjust the rotational speed according to the working environment.

The high temperature heating roller 260 is disposed in parallel with the drive roller 240, the driven gear 262 is coupled to one side surface to be engaged with the drive gear 242 to receive power.

Here, looking at the power transmission sequence, power is supplied from the motor 220 to the reducer 222, and the driving roller 240 is rotated according to the speed setting of the reducer 222. Accordingly, the driving gear 242 coupled to one side of the driving roller 240 rotates, and the high temperature heating roller 260 coupled to the driven gear 262 on one side of the driving gear 242 is engaged with the driving gear 242 so that rotation is interlocked. The power is transmitted at the correct speed ratio.

5 (a), 5 (b) is an illustration of the receiving groove of the high temperature heating roller of Figure 3, as shown, the high temperature heating roller 260 is a straight line along the rotational circumferential surface [5 (a) ] Or the zigzag [5 (b)] in the receiving groove 264 to be formed. At this time, the receiving groove 264 is characterized in that a plurality of the high temperature heating roller 260 is arranged in the longitudinal direction, the sludge capacity is increased as much as the water receiving groove 264 and the heat transfer area of the high temperature heating roller 260 It is possible to widen the sludge treatment efficiency per one revolution of the high temperature heat roller (260) can be increased.

6 (a), (b) is shown in detail and a side view of the pressure roller of Figure 3, a fixed bracket 430 capable of taking the pressure roller 400 on both ends of the high temperature heat roller (260) Is coupled, the fixing bracket 430 inside the roller guide 450 is provided so that the pressure roller 400 can flow.

Here, at both ends of the pressure roller shaft 410 taking the pressure roller 400 is provided on one side of the spring 440, the spring 440 is elastically pressed according to the sludge shape to adjust the elasticity of the spring 440 To adjust the bolt 420 and the filter belt 280 and the pressure roller 400 of the clearance adjustable stopper 460 is composed of.

That is, the spring 440 and the adjustment bolt 420 is a means for pressing the filter belt 280 in the direction of the pressure roller 400 in the high temperature heat roller 260, the stopper 460 is the pressure roller 400 is a safety means that can be smoothly rotated by ensuring a minimum clearance to the high temperature heating roller 260 and the filter belt 280 is rotated.

7 is a detailed view of the tension adjusting unit of FIG. 3, the pinion 520 is integrally connected to the chain bracket 580 by the pinion 520 on the upper portion of the rack 540, and the chain bracket 580 is It is connected to the balance weight 560. A guide bar 590 is provided to allow the balance weight 560 to be vertically guided.

Here, the pinion 520 may move left and right by adjusting the weight of the balance weight 560 so that the shaft (not shown) coupled with the pinion 520 may adjust the tension of the filter belt (not shown). Will be.

8 is a detailed view of the scraper of FIG. 3, the scraper shaft 322 is provided side by side in the longitudinal direction of the high temperature heat roller 260, a plurality of scrapers 320 are the scraper Fitted detachably on the shaft 322, the scraper 320 is provided with a spring 324 to support the elasticity to scrape the sludge after pressing dehydration and evaporation drying to the rotating high temperature heating roller 260 Will be.

Here, configuring the scraper 320 in a plurality of separable parts may reduce the cost and time since the scraper 320 may be partially replaced when the scraper 320 is burned out due to friction with the high temperature heating roller 260. It becomes possible.

In addition, even in the case where the accommodating groove 264 is formed in the high temperature heat roller 260 in the above-described FIG. .

An apparatus for moving the sludge separated from the scraper 320 is further provided, which will be described with reference to FIG. 9.

9 is a view illustrating an example of the sludge discharge unit 300 of FIG. 3, the sludge discharge unit 300 of FIG. 3 is disposed in a plurality of sludge discharged from the scraper 320 to be movable while being crushed. By further providing three screws 340, the dewatering and evaporation drying apparatus for wastewater sludge treatment according to the type of sludge and the user's requirements can be configured in multiple stages.

That is, by connecting the screw 340 to the sludge to be moved to the hopper 120 and the crushing roller 140 of the dewatering and evaporation drying apparatus for other wastewater sludge treatment can be carried out in multiple stages.

As described above, the present invention drives the high temperature heating roller by gear engagement, thereby preventing slippage of the high temperature heating roller and the filter belt, minimizing the damage of the filter belt, and efficiently treating the dewatering and sludge treatment of wastewater sludge. It can be seen that providing the drying apparatus is a basic technical idea, and within the scope of the basic idea of the present invention, many other modifications are possible to those skilled in the art.

Explanation of sign

100: sludge supply part 120: hopper

140: shredding roller 200: drive unit

220: motor 240: drive roller

242: drive gear 260: high temperature heating roller

262: driven gear 264: receiving groove

280: filter belt 300: sludge discharge portion

320: scraper 340: screw

400: pressure roller 500: tension control unit

520: Pinion 540: Lek

560: balance weight

The present invention can be used in the dewatering and evaporation drying apparatus for wastewater sludge treatment, and more specifically, it can be used in the dewatering and evaporation drying apparatus for wastewater sludge treatment that can discharge the sludge containing water by compression dehydration and evaporation to dryness.

Claims

In the dewatering and evaporation drying apparatus for wastewater sludge treatment in which sludge is introduced between the filter belt and the high temperature heating roller, evaporated to dryness and dehydrated,

A sludge supply unit 100 including a hopper 120 into which sludge is introduced, and a crushing roller 140 which is disposed under the hopper 120 to crush sludge finely;

The driving roller 240 is provided near the sludge supply unit 100 and directly connected to the motor 220, and the driving gear 242 is coupled to one side, and the driven gear 262 on one side such that the rotation is interlocked with the driving gear. ) Is coupled to a high temperature heating roller 260 coupled to the driving unit comprising a filtration belt 280 to enable the compression and dehydration and evaporation of the sludge drawn from the sludge supply unit while surrounding the circumferential surfaces of the driving roller and the high temperature heating roller ( 200); And

Sludge discharge portion 300 consisting of a plurality of scrapers 320 are elastically in close contact so as to be separated in the longitudinal direction so that the sludge pressed on the high temperature heating roller can be peeled off; wastewater comprising a Dewatering and evaporation drying device for sludge treatment.
The method of claim 1,

The high temperature heating roller 260,

Receiving groove 264 is formed in a straight or zigzag direction along the rotational circumferential surface, the receiving groove is a dewatering and evaporation drying device for wastewater sludge treatment, characterized in that a plurality of the groove is disposed in the longitudinal direction of the high temperature heating roller.
The method of claim 1,

The filter belt 280,

Dewatering and evaporation drying apparatus for wastewater sludge treatment, characterized in that the pressurized roller 400 is further provided to partially adjust the pressing force to the high temperature heat roller.
The method of claim 1,

The filter belt 280,

A pinion 520 coupled to an axis that spans the filter belt 280, a rack 540 for guiding the pinion left and right, and a balance weight 560 capable of adjusting the tension of the filter belt 280 by moving the pinion left and right. The dewatering and evaporation drying apparatus for wastewater sludge treatment, characterized in that the tension control unit 500 is further provided.
The method of claim 1,

In the sludge discharge unit 300,

Dewatering and evaporation drying apparatus for wastewater sludge treatment, characterized in that a plurality of screws (340) are further provided to be movable while the sludge separated from the scraper 320 is crushed.