KR100688036B1 - The centrifugal dehydrator which does not use a coagulant and in which the sludge is extracted - Google Patents

Abstract

A centrifugal dehydrator for extracting sludge without using a coagulant is provided to separate and extract principal components of the sludge such as celluloid, minerals and oil and fat constituents through a plurality of diaphragm parts by using a specific gravity difference of the principal components of the sludge. A centrifugal dehydrator for extracting sludge without using a coagulant comprises: a bowl(1) which is formed as a cylindrical cross-sectional shaped member and has four crushing projections(14) longitudinally projected to four directions from an inner circumference thereof, and into which the screw conveyor is connected; a rotary vane(20) formed on an outer side of the screw conveyor such that the rotary vane has 1 mm or less of a tolerance with the crushing projections and 1 to 3 mm of a tolerance with the inner circumference of the bowl; a first rotor shaft(11) connected to one side of the bowl; a first screw shaft(12) connected into the first rotor shaft; a second rotor shaft(21) connected to the other side of the bowl; a second screw shaft(22) connected into the second rotor shaft; a screw conveyor(2) in which a centrifugal rod connecting hole(23) is formed, and which is connected into the first screw shaft and the second screw shaft; a centrifugal rod(3) slid into the centrifugal rod connecting hole from an outer side of the first rotor shaft; and a first pulley(41) and a second pulley(42) respectively connected onto the first rotor shaft and the second rotor shaft.

Description

CENTRIFUGAL DEHYDRATOR WHICH DOES NOT USE A COAGULANT AND IN WHICH THE SLUDGE IS EXTRACTED}

1 is a cross-sectional view of the coupling state of the present invention

Figure 2 is an isolated state of Figure 1

3A is a side view of the first rotor shaft

3b is a perspective view of the first rotor shaft;

4A is a side view of the second rotor shaft

4b is a perspective view of the second rotor shaft;

5 is a conventional centrifuge operating state diagram

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

1-Ball 2-Screw Conveyor

3-centrifugal rod 11-first rotor shaft

12-first screw shaft 14-crushing jaw

20-swing vanes 21-second rotor shaft

22-second screw shaft 23-centrifugal rod coupling hole

24-valve 25-ball jaw

26a, 26b-diaphragm 27a, 27b, 27c-hole

31-discharge outlet 41-first pulley

42-second pulley 43-second pulley

44-Fourth Pulley 411,421-V Belt

M1-first motor M2-second motor

The present invention relates to a sludge extraction centrifugal dehydrator that does not require a flocculant. More specifically, the screw conveyor and the sludge discharged through the discharge port of the centrifugal rod are guided to the sill of the valve formed in the inner center of the screw conveyor. As the bowl surrounding the screw conveyor is reversely rotated at 2500RPM, the sludge is centrifuged by the specific gravity difference. Separated by fat oil, etc., respectively, guided to different diaphragm parts, and each of the guided components as described above is guided to the outside of the screw conveyor through a plurality of extraction holes formed outside the diaphragm portion, the rotary blades of the screw conveyor and the screw conveyor Of the bowl which surrounds Due to the tolerance between the inner periphery and the grinding jaw protruding in the four directions from the inner periphery, the sludge is finely ground while being centrifugally rotated by a tolerance of 1 mm or less. Since the flocculant is not introduced at all in the centrifugal dehydration process, it is a very excellent invention that can be used as an organic fertilizer.

As is well known, most of the sludge extraction methods that have been used in the past are mainly used by injecting sludge generated in water, sewage water treatment, livestock wastewater treatment, etc. into a centrifuge in order to concentrate and dehydrate by physical centrifugal force. As described above, the centrifuge provided as described above mainly extracts sludge injected according to the operation of a screw conveyor, as described in Korean Patent Registration No. 407896, wherein the centrifuge rotates water and solids contained in the sludge. Water and solids are separated by applying centrifugal force with little power by injecting into the external copper, and a separate flocculant is put in a state in which the sludge is discharged.

That is, the centrifuge will be described in more detail with reference to the accompanying FIG. 5, wherein a driving motor is formed at both sides, and each pulley is driven by a V-belt coupled from the driving motor, and the sludge inlet tube shown on the right side is provided. The sludge introduced through the sludge is introduced along the centrifugal rod drawn into the screw conveyor, and the sludge introduced as described above is rubbed with the inner film of the screw conveyor, and the sludge is discharged to the outside through the extraction hole of the screw conveyor. Due to the problem of the cohesive force of the sludge during the discharge operation as described above, a problem such as the addition of a separate coagulant, such as inefficiency in the operation as well as difficult to use as an organic fertilizer is raised.

Therefore, an object of the present invention is that four grinding jaws protruding in four directions in the longitudinal direction on the inner circumference of the bowl is formed of a member having a cylindrical cross-section, the screw conveyor is coupled to the inside of the bowl, the rotation of the screw conveyor It is an object of the present invention that the blade is formed to have a tolerance of 1 mm or less with the grinding jaw and configured to have a tolerance of 1 to 2 mm or more with the inner circumference of the bowl.

Another object of the present invention is a sludge extraction device using a centrifuge which is configured to centrifuge the sludge particles by specific gravity difference, and the celluloid and minerals and oils, which are the main components of the sludge, through a plurality of diaphragms due to the specific gravity difference. It is another object of the present invention to be divided by specific gravity difference.

Another object of the present invention is that the bowl and the screw conveyor to be rotated to the inside of the casing is rotated at 2500 ~ 3000RPM, respectively, the rotational direction is rotated in the reverse direction is formed so that the rotational acceleration is augmented For another purpose.

Hereinafter, the components of the present invention will be described.

In the centrifugal dehydrator in which sludge is extracted to 0.1 mm or less without using a coagulant having the bowl 1 and the screw conveyor 2 coupled inside the casing, the bowl 1 is formed of a member having a cylindrical cross section. Four grinding jaw 14 in the longitudinal direction on the inner circumference of the bowl (1) is protruded in the upper, lower, left, right, respectively, screw conveyor (2) is coupled to the inside of the bowl (1), The rotary blade 20 of the screw conveyor 2 is formed to have a tolerance of 1 mm or less with the grinding jaw 14 and is configured to have a tolerance within 1 to 3 mm from the inner circumference of the bowl 1.

The first rotor shaft 11 is coupled to one side of the bowl 1 configured as described above, and the first screw shaft 12 is coupled to the inside of the first rotor shaft 11, and on the other side of the bowl 1. The second rotor shaft 21 is coupled and the second screw shaft 22 is coupled to the inside of the second rotor shaft 21, and the inner side of the first screw shaft 12 and the second screw shaft 22 is coupled. The screw conveyor (2) having the centrifugal rod coupling hole (23) formed in the longitudinal direction is coupled thereto, and the centrifugal rod (3) is inserted into the centrifugal rod coupling hole (23) from the outer direction of the first rotor shaft (11). The first pulley 41 and the second pulley 42 are coupled to each other on the shaft of the first rotor shaft 11 and the second rotor shaft 21, and the centrifugal rod coupling of the screw conveyor 2 is performed. A valve 24 is formed at the center of the ball 23, and a hemispherical ball jaw 25 is protruded on the front surface of the valve 24. The distal bar sludge discharged from the discharge port 31 of the centrifugal pin 3 been coupled to the coupling hole 23 is formed such that it is guided by the bolteok 25.

In addition, a plurality of diaphragm portions 26a and 26b are formed inside the centrifugal rod coupling hole 23, and a plurality of extraction holes 27a and 27b are disposed outside the diaphragm portions 26a and 26b. (27c) is formed through the blade and the blade of the screw conveyor (2) and the third pulley (43) coupled to the shaft of the first motor (M1) to the outside of the first pulley (41) is a V belt ( 411) the bowl 1 is rotated, the fourth pulley 44 coupled to the shaft of the second motor (M2) to the outside of the second pulley 42 is coupled to the V belt 421 screw conveyor (2) is rotated, but the first motor (M1) and the second motor (M2) is rotated in the reverse direction.

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

1 is a cross-sectional view showing a state in which the coupling state of the present invention, as shown above, the bowl 1 is coupled to the inside of the housing and the screw conveyor 2 is coupled to the inside of the bowl 1, but the bowl At the inner circumference of (1), the grinding jaw 14 protrudes in the longitudinal direction in the four directions so that the grinding jaw 14 has a tolerance of 1 mm or less with the rotary blade 20 formed in a thread shape on the outside of the screw. The inner periphery formed and the crushing jaw 14 is not protruding form a tolerance within the range of 1 to 3 mm with the rotary blade 20 of the screw conveyor 2. Sludge discharged through the discharge port of the friction friction with the ball jaw 25 as shown by the arrow at this time, the screw conveyor (2) and the bowl (1) is rotated in reverse centrifugal separation occurs due to the specific gravity difference (26a) and (b) share specific gravity Different molecules are guided and the molecules are extracted through the extraction holes 27a, 27b, and 27c formed outside the diaphragm portions 26a and 26b. It is finely pulverized by the tolerance between the rotary blades 20 of the screw conveyor 2 is to be extracted through the extraction hole 13 shown on one side.

FIG. 2 is a diagram illustrating a separated state of FIG. 1, in which power is transmitted from the first motor M1 and the second motor M2, and a pulley 41 formed on an axis of the motors M1 and M2. (42) is coupled to the pulley (43), (44) and V-belt (411, 421) coupled to the shaft of the bowl (1) and screw conveyor (2) and can be driven An enlarged view of the upper side shows an enlarged view of the crushing jaw 14 protruding from the inner circumference of the bowl 1.

FIG. 3a illustrates a side view of the first rotor shaft 11 and FIG. 3b illustrates a perspective view of the first rotor shaft 11, in which a pulley is coupled to one side of the first rotor shaft 11 as shown above. On the other side of the bearing, the first screw shaft 12 is installed in a row, and the power transmitted from the pulley rotates the bowl 1. FIG. 4A shows a side view of the second rotor shaft 21 and FIG. 4B shows a second view. As shown in the perspective view of the rotor shaft 21 as shown in the pulley is coupled to one side of the second rotor shaft 21 and the second screw shaft 22 is coupled to the other side is the power transmitted from the pulley The screw conveyor 2 is driven to rotate.

Figure 5 shows a conventional state of the centrifuge as shown in the centrifuge as shown above the drive motor is formed on both sides and each pulley from the drive motor is driven by the V belt coupled, the sludge shown on the right The sludge introduced through the input pipe is introduced along the centrifugal rod drawn into the screw conveyor. The sludge introduced as described above is rubbed with the inner film of the screw conveyor, and the sludge is discharged to the outside through the extraction hole of the screw conveyor. As a result, as described above, due to the problem of the cohesive force of the sludge during the discharging operation as described above, a drug such as a separate coagulant is added.

Hereinafter will be described the effects of the present invention.

By protruding the grinding jaw in four directions along the inner circumference of the bowl, the tolerance between the rotary blade of the screw shaft and the crushing jaw and the tolerance between the inner circumference of the rotating blade and the bowl are differently formed. The sludge particles divided and extracted by the specific gravity during rotation are pulverized to 0.1 mm or less by centrifugal force, and thus, a separate flocculant is not required as in the prior art, thereby providing an effect that can be utilized as a simplification of the work process and organic fertilizer.

In addition, when a flocculant is used as in the past, wastes are generated and marine dumping is frequently used in the process of treating the wastes, and problems such as impediment to environmental pollution are solved and environmentally friendly effects occur. Depending on the type of water content is set to be about 30% lower than the conventional sludge, while the present invention has been described with reference to the example shown in the drawings, but this is merely illustrative and those skilled in the art From the above, it is obvious that various variations are possible.

Claims (5)

In the centrifugal dehydrator in which a bowl and a screw conveyor are coupled to the inside of the casing, The bowl 1 is formed of a member having a cylindrical cross section so that four grinding jaws 14 in the longitudinal direction are protruded from the upper, lower, left, and right directions on the inner circumference of the bowl 1. Screw conveyor 2 is coupled to the inside of the (1), the rotary blade 20 is formed to the outside of the screw conveyor (2) is formed to have a tolerance of 1 mm or less with the grinding jaw (14) The inner periphery of the bowl 1 is configured to have a tolerance within 1 to 3 mm, the first rotor shaft 11 is coupled to one side of the bowl 1 and the inner side of the first rotor shaft 11. The first screw shaft 12 is coupled to the other side of the bowl (1) is coupled to the second rotor shaft 21 and the second screw shaft 22 is coupled to the inside of the second rotor shaft 21, On the inside of the first screw shaft 12 and the second screw shaft 22, the centrifugal rod coupling hole 23 is formed Conveyor (2) is coupled, the centrifugal rod (3) is slide-bonded to the centrifugal rod coupling hole (23) from the outer direction of the first rotor shaft (11) and the first rotor shaft (11) and the second A centrifugal dehydrator in which sludge is extracted without using a flocculant, characterized in that the first pulley (41) and the second pulley (42) are respectively coupled on the shaft of the rotor shaft (21). delete The method of claim 1, A valve 24 is formed at the center of the centrifugal rod coupling hole 23 of the screw conveyor 2, and a hemispherical ball jaw 25 is protruded from the front side of the valve 24 to the centrifugal rod coupling 23. Centrifugal dehydrator to extract the sludge without using a flocculant, characterized in that the sludge discharged from the discharge port 31 of the combined centrifugal rod (3) is guided to the chin (25). The method of claim 3, A plurality of diaphragm portions 26a and 26b are formed inside the centrifugal rod coupling hole 23, and a plurality of extraction holes 27a and 27b outside the diaphragm portions 26a and 26b are provided. A centrifugal dehydrator in which sludge is extracted without using a flocculant, characterized in that (27c) is penetrated between the blade and the blade of the screw conveyor (2). The method of claim 3, The third pulley 43 coupled to the shaft of the first motor M1 to the outside of the first pulley 41 is coupled to the V belt 411 so that the bowl 1 is rotated and the second pulley 42 is rotated. The fourth pulley 44 coupled to the shaft of the second motor M2 to the outside of the V belt 421 is coupled to the screw conveyor 2 is rotated, the first motor (M1) and the second motor ( A centrifugal dehydrator in which sludge is extracted without using a flocculant, wherein M2) is rotated in a reverse direction.

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