KR100834848B1 - Crushing equipment of cake type sludge - Google Patents

Abstract

A sludge cake crushing apparatus is provided to improve the sludge press rate during a sludge dehydrating process by equally spreading the sludge by a flattening roller of a flattening unit and to increase the dehydration rate of moisture contained in the sludge. In a sludge cake crushing apparatus, a crushing unit(10) comprises a hopper-shaped input port pouring cake-shaped sludge; a pair of press feeder rollers(12) installed at the lower side of the input port to crush sludge cakes inserted through the input port, firstly; a first motor connected to a roller shaft of one of a pair of press feeder rollers to transmit rotating power of the press feeder roller; a crushing drum having plural projections protruded on the outer peripheral surface to crush the falling sludge broken by a pair of press feeder rollers, secondarily by centrifugal force turning fast; an inverse hopper-shaped guide plate installed at the outer side of the crushing drum; and a crushing motor connected to a shaft of the crushing drum by a belt to transmit rotating power of the crushing drum. A flattening unit(20) is installed at one side of the crushing unit to flatten the sludge crushed by the crushing unit and transferred, equally. The flattening unit has flattening rollers. The flattening rollers comprise a rotary shaft connected to a driving motor(21) by a belt(22) and two screws spirally protruded on the outer peripheral surface of the rotary shaft and symmetrically formed from the center of the rotary shaft to both sides of the rotary shaft to rotate in the opposite directions.

Description

Sludge Cake Shredder {CRUSHING EQUIPMENT OF CAKE TYPE SLUDGE}

1 is a block diagram showing the configuration of a sludge cake dewatering device to which the present invention sludge cake shredding device is applied.

2 is a plan view showing the configuration of the sludge cake crushing device of the present invention.

3 is a front view showing a crushing part of the sludge cake crushing device of the present invention.

Figure 4 is a plan view showing a crushing portion of the sludge cake crushing apparatus of the present invention.

5 is a side view showing a crushing part of the sludge cake crushing device of the present invention.

6 is a plan view showing a flattening portion of the sludge cake crushing apparatus of the present invention.

7 is a front configuration diagram showing a flattening part of the sludge cake crushing device of the present invention.

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

10: crushing unit 11: inlet

12, 13: crimp feeder roller 14: the first motor

15: crushing drum 16, 22, 28: drive belt

17: crushing motor 18: distance control

20: flattening portion 21: drive motor

23: rotating shaft 24, 25: screw

26: flat roller 27: drive pulley

The present invention relates to a crushing device for reducing the moisture content of the cake type sludge, and more particularly, is provided on one side of the dewatering device for dehydrating the water contained in the sludge to crush the cake-type sludge firstly removed water Then, the present invention relates to a sludge cake crushing apparatus capable of flattening the crushed sludge again and increasing the dehydration rate of the water contained in the sludge.

In general, sludge builds up on the floor of a facility that has fresh water, such as a dam or a water purification plant, and the sludge is dewatered periodically to remove the sludge. The dewatering belt is wound around the outer surface of the pressure roller disposed in the furnace, and the water contained in the sludge is dehydrated by pressing the dewatering belt rotated by the driving of the pressure roller.

In the conventional dehydration device, while supplying and storing various sludges to a fixed-quantity supply station, the filtrate is drained and the precipitated sludge is put into a stirring tank, stirred together with a polymer flocculant to form a suitable state for dehydration, and then transported sludge. It is composed of a structure that removes water contained in sludge primarily by its own gravity and also removes water contained in sludge conveyed through the pressing force of the dewatering belt wound around a plurality of pressure rollers. Water extracted during the pressurization process is not completely dehydrated from the sludge, but is absorbed into the sludge again, so that there is a problem in that the dehydration effect is lowered.

Meanwhile, according to the felt-type sludge dewatering apparatus, which is conventionally registered in Korean Patent No. 586053, the press roller, which is a means for dehydrating water contained in the sludge by pressurizing the sludge to be conveyed, is configured in a zigzag shape to the pressing roller. The pressure of the dewatering belt which is wound up and pressurizes the sludge is improved to increase the pressurization effect of the sludge, and at the same time, a plurality of holes are drilled on the outer surface of the pressing roller, and the water of the sludge released by the dewatering belt is pressed into the hole. Through this, it is possible to escape to the inner surface side of the pressing roller to improve the dehydration rate of the water contained in the sludge.

That is, when the sludge agglomerated in the shape of cake is placed on the upper side of the conveying belt, the sludge is conveyed to the pressing roller side by rotating the conveying belt, and the water is dehydrated by the dewatering belt wound on the pressing roller. Since the compressive force of the dewatering belt generated during the process of the sludge being compressed by the dewatering belt is not evenly distributed in the sludge, the compressive force against the sludge is greatly reduced, so that the dehydration rate of water contained in the sludge is lowered.

Therefore, in order to solve this problem, first, before dewatering the cake-shaped sludge cake, the sludge should be finely and evenly crushed so that the sludge cake is easily seated on the upper and lower dewatering belts of the felt type dewatering device and spread out evenly.

The present invention has been made to solve the problems caused by the dehydration of water contained in the conventional sludge, sludge dewatering device comprising a crushing unit having a crushing feeder roller on one side, and a flattening unit having a flattening roller on one side In the process of sludge is added to the dewatering belt of the cake-shaped sludge cake first crushed through the crushing unit, and then spread evenly throughout the dewatering belt by the flattening unit to not only improve the compression rate of the sludge, but also the crushing It is an object of the present invention to provide a sludge cake shredding apparatus which allows the sludge to be shredded again by the centrifugal force of the shredding drum which is rapidly rotated on the lower part of the part, thereby increasing the dehydration rate of the water contained in the sludge to below the environmental regulations.

The sludge cake crushing device of the present invention as a means for achieving the above object, the hopper-shaped inlet to which the cake-shaped sludge is introduced, and is provided on the lower side of the inlet to primarily crush the sludge cake introduced through the inlet A pair of crimped feeder rollers, a first motor connected to the roller shaft of any one of the crimped feeder rollers to transmit rotational force of the crimped feeder rollers, and by the pair of crimped feeder rollers A crushing drum in which a plurality of protrusions protrude on the outer circumferential surface of the crushed sludge so that the sludge is secondaryly crushed by a rapidly rotating centrifugal force, and a reverse hopper-shaped guide plate disposed on an outer side of the crushing drum; A crushing unit having a crushing motor connected to a drum shaft of the crushing drum by a belt to transmit a rotational force of the crushing drum; The flattening unit is provided on one side of the shredding unit and evenly flattened sludge crushed and dropped by the shredding unit.

The flattening unit includes a rotating shaft connected to the belt by a drive motor and a flat roller having two screws spirally formed on the outer circumferential surface of the rotating shaft and symmetrically rotated oppositely from the center of the rotating shaft to both sides of the rotating shaft. It features.

The flattening roller of the flattening part may be provided with at least two or more parallelly spaced apart by a belt connected to the driving pulley further formed on the rotation axis of the flattening roller.

One side of any one of the compression feed rollers of the pair of pressing feed rollers of the shredding portion may be further provided with a distance adjusting mechanism for adjusting the distance of the pair of pressing feed rollers.

In the sludge cake dewatering device of the present invention having the above characteristics, the cake-shaped sludge cake is crushed by a pair of press feeder rollers provided on both sides of the crushing portion, and the crushed sludge is evenly spread by the flat roller of the flattening portion. As the sludge is dewatered by the dewatering device, the compression rate of the sludge can be greatly improved, so that the dehydration rate of the water contained in the sludge is increased, so that the water content of the sludge is lower than the environmental regulation.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings, and the terminology or words used in the specification and claims are used to explain the invention in its best way. Based on the principle that the concept of can be properly defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

1 is a block diagram showing the configuration of the sludge cake dewatering device to which the present invention sludge cake crushing device is applied, Figure 2 is a plan view showing the configuration of the sludge cake crushing device of the present invention, Figure 3 is a crushing of the sludge cake crushing device of the present invention 4 is a plan view showing a crushing part of the sludge cake crushing apparatus of the present invention, Figure 5 is a side view showing a crushing portion of the sludge cake crushing apparatus of the present invention, Figure 6 shows a flattening portion of the sludge cake crushing apparatus of the present invention 7 is a plan view showing a flattening part of the sludge cake crushing device of the present invention.

As shown in the present invention, the sludge cake crushing apparatus is provided with a hopper-shaped inlet 11 into which a cake-shaped sludge is introduced, and a sludge cake introduced through the inlet 11 provided at a lower side of the inlet 11. The rotational force of the crimp feeder roller is connected to the roller shaft of any one of the crimp feed rollers 12 and 13 and the pair of crimp feed rollers 12 and 13 which are primarily crushed. The first motor 14 for transmitting the plurality of sludge, and the sludge crushed by the pair of pressing feeder rollers 12, 13 are dropped to a plurality of outer peripheral surfaces so that the sludge is secondary crushed by the centrifugal force that rotates rapidly A belt 16 is connected to the crushing drum 15 protruding from the protrusion 15a, a guide plate 11a having a reverse hopper shape installed on the outer side of the crushing drum, and a drum shaft of the crushing drum 15. The crushing motor 17 which transmits the rotational force of the crushing drum 15 And a flattening portion 20 provided on one side of the crushing portion 10 and flattening the sludge evenly crushed by the crushing portion.

The crushing drum 15 is crushed again by the centrifugal force of the crushing drum 15, the sludge crushed primarily by the pair of compressed feed rollers 12, 13, the rapid When the sludge primarily crushed by the pair of pressing feeder rollers 12 and 13 by rotation falls to the crushing drum 15, the sludge is caused by the centrifugal force of the rapidly rotating crushing drum 15. The second crushing operation of the sludge is made by being scattered while being scratched by a plurality of protrusions (15a) protruding on the outer peripheral surface of the crushing drum (15).

In addition, by the reverse hopper-shaped guide plate (11a) installed on the outer side of the shredding drum (15) is secondly crushed by the centrifugal force by the rapid rotational force of the shredding drum (15) to be scattered and scattered The sludge is guided downwards without falling outwards and falls.

The sludge is scattered by the centrifugal force generated by the rapid rotation of the crushing drum 15, and the reason for the second crushing operation is similar to that of the threshing machine principle that is conventionally used. When the sludge is in contact with the protrusions (15a), the secondary protrusions of the sludge is possible by scattering as the protrusions (15a) rotated by the centrifugal force of the rotating crushing drum (15) to touch and scrape the sludge.

For example, the guide plate 11a may be formed of a stainless material so that the sludge naturally slips even if the sludge to be scattered does not fall and adheres to the inner surface side of the guide plate 11a.

Therefore, in the sludge cake crushing apparatus of the present invention, the cake-shaped sludge cake introduced by the inlet 11 is primarily crushed by a pair of press feeder rollers 12 and 13, and the first crushed sludge is Secondary crushing by the centrifugal force of the rapidly rotating crushing drum 15 in the falling process, flattening the sludge by the flattening unit 20 with the effect that the water contained in the sludge in the crushing process to some extent dewatered Work is made easier.

The flattening part 20 is formed in a spiral shape on the rotary shaft 23 connected to the belt 22 by the drive motor 21 and the outer circumferential surface of the rotary shaft 23, but is rotated from the center of the rotary shaft 23 to the rotary shaft 23. It consists of a flat roller (26) having two screws (24, 25) formed symmetrically so as to be reversely rotated to both sides of.

Therefore, two screws 24, 25 spirally protruding on the outer circumferential surface of the rotating shaft 23 of the flat roller 26 are formed symmetrically with each other so as to be reversely rotated to both sides with the center point of the rotating shaft 23 as the center point. Accordingly, the sludge crushed and conveyed through the crushing unit 10 is widely spread by the screws 24 and 25 of the flat roller 26.

In addition, the flat roller 26 of the flattening portion 20, the drive pulley 27 is further extended to the end of the rotation shaft 23 of the flat roller 26 and the belt (connected to the drive pulley 27) 28) may be provided spaced apart in parallel to at least two or more, in this way, a plurality of the flat roller 26 may be provided as necessary.

The sludge cake of the present invention configured as described above is used to be applied to a sludge cake dewatering apparatus as shown in FIG. 1, and the dewatering process of the sludge will be described with reference to FIG. 1.

When the sludge cake is introduced into the inlet 11 formed in the hopper shape of the crushing unit 10, the pair of pressing feeder rollers 12 and 13 provided on the lower side of the inlet 11 are rotated so that the inlet 11 The cake-shaped sludge cake introduced through the crushing is crushed and seated on the upper side of the lower dewatering belt 2 which is configured and rotated at the lower side of the crushing unit 10.

As such, the sludge seated on the upper side of the lower dewatering belt 2 is transferred to the flattening unit 20 provided on one side of the crushing unit 10 by the lower dewatering belt 2. The sludge is spread to both the left and right sides by two screws 24 and 25 symmetrically formed in opposite directions on the rotation shaft 23 of the flat roller 26 of 20 so that the entire upper side of the lower dewatering belt 2 Spread evenly on

The reason why the sludge is evenly flattened by the flattening unit 20 is as shown in FIG. 6, as shown in FIG. 6, two screws 24 formed on the rotation shaft 23 of the flattening roller 26 configured in the flattening unit 20. (25) is formed in a reverse symmetric helical shape that is formed outwardly centered on the center of the rotation axis 23, the sludge conveyed to the center side, that is, the upper surface of the lower dewatering belt (2) This is because it spreads evenly from the center side to both sides of the upper surface.

The sludge spread evenly on the upper surface of the lower dewatering belt 2 is transferred to the upper dewatering belt 1 in close contact with the lower dewatering belt 2, and is thus pressurized by the pressurized dewatering part 30 to be primarily. When the phosphorus dehydration is made, the upper and lower dewatering belts (1) and (2) are simultaneously wound and rotated by the pressure roller (31) formed in the pressure dewatering unit (30), and the sludge is the upper and lower dewatering belts ( 1) (2) by being pressed between the press, while the upper / lower dewatering belt (1) (2) is rotated along the pressure roller 31 to perform the primary dewatering operation.

As described above, the sludge which is subjected to the primary dehydration operation by the pressurized dehydration unit 30 is dehydrated again by the secondary dehydration operation of the compression dewatering unit 40. The upper and lower dewatering belts (1) and (2), which are in close contact with each other, are wound on the pressing rollers (41) and (42) of the pressing dewatering part (40), respectively. ), The pressing dewatering belts 41a and 42a are compressed by the pressing rollers 41 and 42 configured in a zigzag shape, so that the upper and lower dewatering belts 1 and 2 are moved. Dewatering work of sludge located in between is done secondarily.

The crimping and dewatering part 40 is provided with upper and lower crimping and dewatering belts 41a and 42a, which are wound around the crimping rollers 41 and 42 and formed of felt, and are seated on the upper crimping and dewatering belt 41a. It is provided with a pressing table 44 on the upper support shaft 43 of the pressing roller 41 and one side of the pressing table 44 is hinged by the hinge portion 45 and the other side of the rod of the pressure cylinder 46 The support shaft 43 of the upper pressing dewatering belt 41 is pressed by the pressing cylinder 46 to press the upper / lower pressing dewatering belts 41 and 42 to press the sludge to each other. The upper and lower dewatering belt (1) (2) placed in the compression is made and the dehydration operation is in progress.

In this way, the sludge which is seated on the lower dewatering belt 2 and dehydrated by the pressurized dewatering part 30 and the pressurized dewatering part 40 is seated on the upper side of the lower dewatering belt 2 and transported. After being crushed by the crushing part 10 and the flattening part 20 of the sludge cake crushing device of the inventors, the pressure and the pressing force of the pressure dewatering part 30 as well as the squeezing dehydration part 40 are conveyed in an unfolded state. It can be distributed evenly in the sludge, so that the dehydration rate of the water contained in the sludge is greatly increased, so that the water content of the sludge can be reduced below the environmental regulation value.

These effects are as shown in Table 1, and dehydration of the sludge cake using the sludge cake crushing device of the present invention can lower the water content to 68% or less as shown in Table 1 below.

Sludge Existing Function Rate (%) Sludge Dehydrator (%) Cake Dehydrator (%) Date of Measurement Zain Purification Plant (Unmun Dam) 84.8 73.9 67.6 7/5 Zain Purification Plant (Unmun Dam) 83.1 73.5 67.7 7/3 Zain Purification Plant (Unmun Dam) - 68.9 61.8 6/23

The sludge cake shredding device of the present invention, the distance to adjust the distance of the pair of the compressed feed roller of any one of the pair of the compressed feed rollers 12, 13 of the crushing unit (10) The adjusting mechanism 18 is further provided.

The distance adjusting mechanism 18 is a general configuration in which any one of the compression feed rollers 12 and 13 of the compression feed rollers is slidably moved in a parallel line to the left or the right when rotating to one side, and a detailed description thereof will be omitted. , By adjusting the interval of the pressing feeder roller 12, 13 of the crushing unit 10 can be adjusted to adjust the size of the sludge or the amount of input work efficiency and workability is improved.

In addition, the sludge cake crushing device of the present invention is compact in its external shape and easily mounted and detached to the dewatering device.

The sludge cake crushing apparatus of the present invention has been described as the use of crushing a cake-shaped sludge cake according to the above, but is not limited to this, of course, it can be utilized for various purposes.

In addition to the present invention, the sludge cake shredding apparatus that can be modified in various ways, all the embodiments modified without departing from the scope of the present invention should be construed as being included in the scope of the present invention.

As described above, according to the sludge cake dewatering device of the present invention, the cake-shaped sludge cake is primarily crushed by a pair of press feeder rollers provided on the shredding portion, and the sludge that is primarily crushed is crushed. As the secondary crushing is made by the centrifugal force generated by the fast rotation, the sludge can be evenly spread by the flat roller of the flattening part, so that the sludge compression rate of the sludge is greatly improved in the process of dewatering the sludge by the dewatering device. As a result, the dehydration rate of the water contained in the sludge increases, so that the water content of the sludge is lowered below the environmental regulation value.

Claims (4)

Hopper-shaped inlet 11 into which cake-shaped sludge is introduced, and a pair of compressed feed rollers 12 provided at the lower side of the inlet 11 to crush the sludge cake introduced through the inlet 11 first. 13 and the first motor 14 is connected to the roller shaft of any one of the pair of the crimping feeder rollers 12 and 13 to transmit the rotational force of the crimping feeder roller, and the Crushed drum 15 in which a plurality of protrusions 15a protrude on the outer circumferential surface so that the sludge crushed by the pair of compressed feed rollers 12 and 13 falls and is rapidly crushed by the centrifugal force which rotates rapidly. And a crushing motor which is connected to the drum shaft of the crushing drum 15 by a belt 16 to transfer the rotational force of the crushing drum 15 to the reverse hopper-shaped guide plate 11a installed on the outer side of the crushing drum. A shredding portion (10) having (17); And a flattening part 20 provided on one side of the crushing part 10 and evenly flattening the sludge crushed and dropped by the crushing part. The flattening part 20 is formed in a spiral shape on the rotary shaft 23 connected to the belt 22 by the drive motor 21 and the outer circumferential surface of the rotary shaft 23, but is rotated from the center of the rotary shaft 23 to the rotary shaft 23. Sludge cake crushing device characterized in that it comprises a flat roller 26 having two screws (24) (25) formed symmetrically so as to be reversely rotated to both sides of the. delete The flattening roller 26 of the flattening unit 20, The driving pulley 27 is further arranged at the end of the rotation shaft 23 of the flat roller 26 and is spaced apart at least two or more in parallel by a belt 28 connected to the driving pulley 27. Sludge cake crusher, characterized in that. The method of claim 1, One side of the one of the pressing feeder roller of the pair of pressing feeder roller 12, 13 of the crushing unit 10 is further provided with a distance adjusting mechanism 18 for adjusting the distance of the pair of pressing feeder rollers. Sludge cake crushing device characterized in that it is made.

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