KR102545054B1 - High-speed mixer built-in centrifugal separation, concentration and dewatering device to improve sludge treatment efficiency - Google Patents

Abstract

The present invention relates to a centrifugal separation, concentrating, and dehydrating apparatus with a built-in high-speed mixer for improving sludge treatment efficiency.
According to the present invention, the sludge storage tank for storing the sludge supplied from the sludge storage tank is mounted on the front side of the lower case of the centrifugal separation, thickening and dehydration device, and the high-speed mixer is detachably fastened to the sludge storage tank without a separate pipe line Convenience and cost are reduced by fixing, and liquid coagulant (polymer) is sprayed into the sludge inside the sludge storage tank through the coagulant spray member on the other side of the rotating hollow shaft rotating at high speed to mix and solidify the sludge, sludge storage The mixed sludge input member composed of the primary and secondary mix lines and the inner input line installed between the tank and the inside of the scroll of the centrifugal separation, condensation and dehydration device is sequentially passed through and mixed to create a large floc and introduced into the scroll. Accordingly, the effect of efficiently treating the sludge is provided.

Description

High-speed mixer built-in centrifugal separation, concentration and dewatering device to improve sludge treatment efficiency}

The present invention relates to a centrifugal separation, condensation and dehydration device with a built-in high-speed mixer for improving sludge treatment efficiency, and more specifically, to a sludge storage tank mounted on the front side of the lower casing to store sludge supplied from a sludge storage tank. , The high-speed mixer is detachably fastened and fixed to spray the liquid coagulant (polymer) into the sludge inside the sludge storage tank as a coagulant spray member that rotates at high speed, mixing the sludge mixed with the coagulant while passing through the primary and secondary in-mix lines It is configured to improve separation, concentration and dehydration efficiency by generating large sea flocs and introducing them into the scroll of the centrifugal dehydration device.

In general, sludge is discharged after going through a pretreatment process in wastewater and chemical processes that have undergone physical or biological treatment in the sewage treatment process, water treatment process, and wastewater treatment process. It is classified into sludge and mixed sludge, and this sludge is discharged in the form of dehydrated cake by minimizing the moisture content through separation and concentration or dehydration facilities in the wastewater treatment process, and is finally incinerated or landfilled and reprocessed in the form of fuel.

However, such a conventional mixing device guarantees a certain amount of sedimentation required in the water treatment process, but a stirring tank that requires a residence time of about 20 to 30 minutes must be secured for complete mixing of the sludge, which is also difficult to completely stir. there is. In addition, because of the low speed, some coagulants form a layer with the sludge, and are discharged without sufficient contact with the sludge, so that the required amount of coagulant is high, but the treatment (mixing or stirring) efficiency is low. In addition, problems such as increased power, increased sludge generation, and deterioration of effluent quality have been raised in the subsequent water treatment process due to an increase in the required amount of coagulant and secondary contamination due to excessive input of coagulant.

Therefore, recently, an inline mixer device is installed as a high-speed mixing device on the flow path between the sludge storage tank (or thickening tank) and the dehydrator (or thickening facility). This mixing device has a coagulant nozzle capable of spraying the coagulant, through which the coagulant diffuses into the pipe and instantly mixes with the sludge, thereby reducing the consumption of the coagulant and increasing the treatment efficiency.

Regarding the prior art of such an inline mixer device, Registration Patent No. 10-1943944 (name of invention: centrifugal dehydrator) and Patent Registration No. 10-1168723 (name of invention: drug dispersion type inline mixing device) are disclosed.

Such a prior art centrifugal dehydrator includes a casing formed with a liquid discharge port and a cake discharge port through which liquid and cake are discharged; a rotating drum rotatably shrunk by the drum driving means on the other side of the casing and having a cake discharge hole communicating with the cake discharge port; a scroll that is rotatably reduced by a scroll rotating means on one side of the rotating drum and discharges the supplied sludge into the rotating drum to separate and discharge the sludge into liquid and solid materials; A centrifugal dehydrator composed of a control unit for controlling the operation of a scroll rotating means and a drum driving means, wherein the scroll comprises: a plurality of sealed spaces composed of a circular piece, and a vertical closing piece and a horizontal closing piece integrally formed on an outer circumferential surface of the circular piece; a circle with a through hole

A plurality of open spaces composed of the shape and the vertical closing piece and the horizontal closing piece integrally formed on the outer circumferential surface of the circular piece; A horizontal finishing member fixed between the vertical and horizontal closing pieces of the closed space and the open space and fixed to the outer circumferential surface of the circular piece so that a straight line interval and a circular shape are maintained as much as the width of the vertical and horizontal closing piece; an inclined finishing member that is obliquely fixed to the other end of the horizontal finishing member and maintains an inclined interval; first and second closing housings fixed to one end and the other end of the horizontal closing member, having a scroll rotation means installed thereon, and finishing the other end of the inclined finishing member; It is characterized in that it consists of transfer wings installed straight and inclined in the outer circumferential area of the first finishing housing, horizontal finishing member, inclined finishing member and second finishing housing.

In the prior art configured as described above, a square discharge hole is formed in the transfer blade of the scroll for discharging the sludge with floc formed into a solid (solid) and a liquid by gravity separation into the rotating drum to discharge the separated liquid This is done quickly, so the dehydration efficiency is high, so the moisture content is reduced and the amount of cake is reduced. In addition, the cut-off blades are protruded on the outer circumferential surface of the second finishing housing of the scroll, so that the cake transferred from the transfer blades collides and induces discharge to the cake discharge port. The discharge of the cake is facilitated, and a plurality of inclined reinforcing pieces are partitioned and installed at the straight and inclined intervals formed on the horizontal finishing member and the inclined finishing member of the scroll so that the sludge is discharged into the rotating drum to reinforce the strength and rotate at the same time The effect of high dewatering efficiency is provided by blocking the reverse inflow of sludge (water + solids) inside the drum into the inside of the scroll.

However, this prior art is not equipped with a mixing process of spraying a coagulant for sludge supplied from the outside through an inlet pipe coupled to a scroll and a device for generating a large floc for the mixed sludge, so the sludge transferred from the sludge storage tank As the is introduced into the dehydration device as it is, the efficiency of the dehydration device is reduced.

In addition, the chemical injection type inline mixing device of the prior art, a motor providing driving force, an injection chamber in which the motor is coupled and installed and an injection pipe through which chemicals are supplied to the internal space are connected, and the injection chamber is coupled and installed while the sewage A mixing pipe coupled to the conveying pipe to be transported, and inserted into the injection chamber, mounted on the driving shaft of the motor, and having an injection hole formed so as to be located in the injection chamber, and a hollow shaft having an injection hole and a mixing impeller radially formed so as to be located in the mixing pipe, The injection hole and the injection hole formed in the hollow shaft pass through the central hole, respectively, and are formed as elongated holes, and form a pumping chamber in the inner space where the injection tube is located in the injection chamber, and the hollow shaft to be located in the pumping chamber. It is characterized in that the suction pumping of the drug is performed by installing a suction impeller.

In the prior art configured as described above, chemicals are dispersed and injected into a mixing pipe through which sewage or industrial wastewater is transported through a hollow shaft that rotates by the drive of a motor, and in addition, the impeller rotates at high speed due to the rotation of the hollow shaft to mix the chemicals. , The chemical is uniformly dispersed and mixed to improve the reaction efficiency, while the chemical is injected in a fixed amount, thereby preventing excessive use and reducing the amount of use.

However, in this prior art, as the inflowing drug is injected through a spray hole formed long in the longitudinal direction of a high-speed rotating hollow shaft, the drug is sprayed differentially and uniform dispersion and mixing is not achieved, and also high-speed rotating As foreign substances (hair, hair, and other fibers) are wound around the impeller, a load is generated on the motor, resulting in a decrease in efficiency.

Registered Patent No. 10-1943944 (2019.01.24.) Registered Patent No. 10-1168723 (2012.07.19.)

The present invention has been made to solve the problems of the prior art, and an object of the present invention is to detachably fasten the sludge storage tank mounted on the other front side of the lower casing to store the sludge supplied from the sludge storage tank As a fixed high-speed mixer, the liquid coagulant (polymer) is injected into the sludge inside the sludge storage tank through a coagulant spray member that rotates at high speed. The sludge mixed with the coagulant by spraying is mixed while passing through the 1st and 2nd in-mix lines to create a large floc and introduced into the scroll of the centrifugal dewatering device to improve separation, concentration and dehydration efficiency. To improve sludge treatment efficiency It is to provide a centrifugal separation, concentration and dehydration device with a built-in high-speed mixer.

Another object of the present invention is to prevent overload of the rotary motor by preventing foreign substances (hair, hair and other fibers) included in the sludge from being wound around the anti-winding block and the mix nozzle fastened to the hollow rotary shaft rotating at high speed.

The problem solving means of the present invention for achieving the above object is a lower casing; a rotating drum installed rotatably as a drum rotating means on the other side inside the lower casing, and having a liquid discharge hole at one end and a cake discharge hole formed on the outer circumferential surface of the other side; It is rotatably installed on one side of the rotary drum as a scroll rotating means, and is located on the inner circumferential surface of the rotary drum to discharge the sludge supplied to the inside through the liquid discharge hole and the cake discharge hole of the rotary drum Scroll for separating and discharging into liquid and solid In the centrifugal separation, condensation and dehydration apparatus consisting of, a sludge storage tank mounted on the other side of the front surface of the lower casing to store the sludge transferred and supplied from the sludge storage tank; Coagulant spraying member provided on the other side of the rotating hollow shaft, the coagulant introduced through the inner inlet hole of the rotating hollow shaft rotatably connected to the motor shaft of the rotating hollow shaft, which is detachably fastened to the top of one side of the sludge storage tank in communication as a flange, and is rotatably connected to the motor shaft of the rotating motor A high-speed mixer for separating solids by mixing with sludge by spraying as; And a mixed sludge input member installed between the sludge storage tank and the scroll to inject large flocs generated by secondarily mixing the sludge mixed with the coagulant inside the sludge storage tank by a high-speed mixer into the inside of the scroll. characterized by

According to the present invention, the sludge storage tank for storing the sludge supplied from the sludge storage tank is mounted on the front side of the lower case of the centrifugal separator, thickening and dehydration device, and the high-speed mixer is detachably fastened to the sludge storage tank without a separate pipe line Convenience and cost are reduced by fixing, and liquid coagulant (polymer) is sprayed into the sludge inside the sludge storage tank through the coagulant spray member on the other side of the rotating hollow shaft rotating at high speed to mix and solidify the sludge. Mixed sludge input members (primary and secondary mix lines and inner input lines) installed between the tank and the inside of the scroll of the centrifugal separation, condensation and dehydration device are mixed while passing sequentially to create large flocs and feed them into the scroll. sludge can be efficiently treated according to the method, and foreign substances (hair, hair, and other fibers) included in the sludge are not wound around the anti-wrap block and mix nozzle fastened to the hollow rotary shaft that rotates at high speed, preventing overload of the rotary motor. effect is provided.

1 is a perspective view showing a centrifugal separation, concentrating and dehydrating apparatus with a built-in high-speed mixer for improving sludge treatment efficiency according to the present invention.
Figure 2 is a side configuration diagram showing a centrifugal separation, concentration and dehydration device with a built-in high-speed mixer for improving sludge treatment efficiency according to the present invention.
Figure 3 is a configuration diagram showing the main part of the mixed sludge input member of the high-speed mixer built-in centrifugal separation, concentration and dehydration device for improving sludge treatment efficiency according to the present invention.
Figure 4 is a cross-sectional configuration diagram showing the operating state of the high-speed mixer built-in centrifugal separation, concentration and dehydration device for improving sludge treatment efficiency according to the present invention.
Figure 5 is a cross-sectional view of the high-speed mixer of the high-speed mixer built-in centrifugal separation, concentration and dehydration device for improving sludge treatment efficiency according to the present invention.
Figure 6 is a cross-sectional view showing another embodiment of the high-speed mixer of the high-speed mixer built-in centrifugal separation, concentration and dehydration device for improving sludge treatment efficiency according to the present invention.

Hereinafter, an embodiment of the invention will be described in detail with reference to the accompanying drawings.

Among the accompanying drawings, FIG. 1 is a perspective view showing a centrifugal separation, condensation and dehydration device with a built-in high-speed mixer for improving sludge treatment efficiency according to the present invention, and FIG. 2 is a high-speed mixer for improving sludge treatment efficiency according to the present invention It is a side configuration diagram of a built-in centrifugal separation, concentrating and dehydrating device, and FIG. 3 is a schematic diagram showing the main parts of a high-speed mixer built-in centrifugal separation, concentrating and dehydrating device for improving sludge treatment efficiency according to the present invention, and FIG. It is a cross-sectional configuration diagram showing the operating state of a centrifugal separation, condensation and dehydration device with a built-in high-speed mixer for improving sludge treatment efficiency according to the present invention. , It is a cross-sectional diagram of the concentrating and dehydrating device.

As shown in FIGS. 1 to 5, the high-speed mixer built-in centrifugal separation, condensation and dehydration device for improving sludge treatment efficiency according to the present invention is a support 10a. ) It is rotatably installed as a drum rotating means 20 on the other side of the inside, finished as a circular closing plate 32 having a liquid discharge hole 31a formed at one end, and a rotation in which a cake discharge hole 33a is formed on the outer circumferential surface of the other side. The drum 30 and the sludge rotatably reduced by the scroll rotating means 40 on one side of the rotary drum 30, located close to the inner circumferential surface of the rotary drum 30, and supplied to the inside of the rotary drum 30 ) With a scroll 50 for discharging to the inside to separate and discharge liquid and solid, and an upper cover 60 provided to be able to open and close on the back of the lower case 10 and having a plurality of partitions 61 on the inner circumferential surface a centrifugal separation, concentrating and dehydrating device (1); A sludge storage tank 70 mounted on the other front side of the lower case 10 to receive and store the sludge supplied from the sludge storage tank through the sludge supply pipe 70a; A high-speed mixer 80 for separating solids by being detachably fastened to one surface of the sludge storage tank 70 and spraying a coagulant (polymer) into the sludge storage tank 70 to mix with the sludge inside the sludge storage tank 70; It is installed between the sludge storage tank 70 and the scroll 50, and the large floc generated by secondarily mixing the sludge mixed with the coagulant inside the sludge storage tank 70 by the high-speed mixer 80 is removed by the scroll 50 It consists of a mixed sludge input member 90 for inputting into the interior.

The high-speed mixer 80 includes a circular plate 82 detachably fastened to an upper flange 71 fixed to an upper portion of one surface of the sludge storage tank 70 and having a central through hole 82a formed in a central region; One end is inserted and fixed to the motor shaft 83a of the rotary motor 83, the other end is shrunk through the central through hole 82a of the round plate 82, the inner inlet hole 84a is formed through the central area, and the other end The blocked rotational hollow shaft 84 and; A coagulant blocking member provided between one side and the other side of the circular plate 82 and the rotary motor 83 and on the outer circumferential surface of the hollow shaft 84 to block the inflow of the coagulant (polymer) into the rotary motor 83. (100) and; It is detachably fastened to the outer circumferential surface of the rotating hollow shaft 84 of the other area of the circular plate 82 and consists of a coagulant spraying member 110 for spraying the coagulant into the sludge storage tank 70 and mixing it with the sludge.

The rotating hollow shaft 84 has a power lock 86 inserted and fixed to the outer circumferential surface inserted into and fixed to the motor shaft 83a of the rotating motor 83, causing wear and tear under load due to high-speed rotation of the rotating motor 83. Vibration durability is improved.

In the power lock 86, an insertion through hole 86a into which the hollow rotation shaft 84 is inserted is formed in a central region, and strength is reinforced by a plurality of fastening bolts 87.

The mixed sludge input member 90 is detachably connected to the top of the sludge storage tank 70 as a flange, and the sludge mixed inside the sludge storage tank 70 by the high-speed mixer 80 is supplied. Primary mix line (92) and; It is detachably connected to the primary mix line 92 as a flange, and the mixing wing 94 is fixed to the inner circumferential surface so that the mixed sludge passes through and is secondarily mixed so that large-sized flocs are generated. 2nd mix line (95) and; One end is connected to the secondary mix line 95 as a flange, and the other end is inserted so as to be located inside the scroll 50, so that the large-sized floc generated sludge is injected into the scroll 50. An inner input line (96) made up of

The coagulant blocking member 100 is detachably fastened to the other surface of the circular plate 82 with a fastening bolt 101, and the coagulant inlet body 102 having an inlet through hole 102a formed in the center; an inlet 103 connected in communication with the inlet through hole 102a on the outer circumferential surface of the coagulant inlet body 102; a coagulant supply pipe 104 detachably coupled to the inlet 103 and through which the coagulant flows into the coagulant inlet body 102; An oil chamber 105 fastened to one side of the coagulant inlet body 102 by fastening bolts 101 so that the other side remains watertight, and filled with oil therein; An oil chamber cover 106 inserted into the rotating hollow shaft 84 to maintain oil tightness and fastened and fixed to maintain oil tightness inside the oil chamber 105 to block the inside of the oil chamber 105; The inner circumferential surface is inserted into the outer circumferential surface of the rotating hollow shaft 84, and one side is inserted into the other side of the oil chamber 105 so that the other side is positioned inside the inlet through hole 102a of the coagulant inlet body 102, so that the oil chamber 105 It consists of a mechanical seal 107 to prevent oil leakage and inflow of coagulant.

At this time, a level gauge 105a is detachably fastened to the outer circumferential surface of the oil chamber 105 to check the horizontal state of the oil.

The coagulant injection member 110 includes a winding prevention block 111 detachably fastened to the outer circumferential surface of the hollow rotating shaft 84 of the other side region of the circular plate 82 and fixed as a bolt; A pair of mix nozzles 112 detachably fastened to both sides of the outer circumferential surface of the hollow shaft 84 of the other area of the anti-wrap block 111 and fixed with bolts; A plurality of inner injection holes 113 formed to communicate with the rotating hollow shaft 84; It is formed in the mix nozzle 112 to communicate with the inside injection hole 113 and consists of an outside injection hole 114 through which the coagulant introduced through the inside inlet hole 84a of the rotating hollow shaft 84 is sprayed to the outside.

The outer injection hole 114 has a linear portion 114a formed to communicate with the inner circumferential surface of the hollow rotating shaft 84; It is formed in communication with both ends of the straight part 114a and consists of a fan-shaped expansion part 114b for spraying the coagulant to the outside.

On the other hand, the information shown in Figure 6 is another embodiment of the coagulant spraying member of Figures 1 to 5, and the same reference numerals and names are used for the same components.

The coagulant injection member 110 includes a winding prevention block 120 that is detachably fastened and fixed as a bolt to the outer circumferential surface of the hollow shaft 84 of the other side region of the circular plate 82; A pair of blades 121 protruding and fixed to correspond to both sides of the outer circumferential surface of the hollow shaft 84 of the other side of the anti-winding block 120 and having rounded corners; It consists of a coagulant injection hole 122 formed through to correspond to the rotating hollow shaft 84 between the blades 121.

The coagulant injection hole 122 has one end sharp on the rotating hollow shaft 84 between the blades 121, and is formed to penetrate widely to the other side, so that the supplied coagulant is evenly sprayed and the inflow of sludge is blocked.

The edge of the blade 121 is rounded so that foreign substances (hair, hair, and other fibers) included in the sludge are not wound, preventing the rotary motor 83 from being overloaded.

The operating state of the centrifugal separation, concentrating and dehydrating device with a built-in high-speed mixer for improving sludge treatment efficiency according to the present invention configured as described above will be schematically described.

As shown in FIG. 1, when the sludge supplied and transported at an appropriate pressure from the sludge storage tank (not shown) is introduced into the sludge storage tank 70 mounted on the other front side of the lower case 10 of the centrifugal dewatering device 1 and stored, The rotary motor 83 is rotated at high speed (1000 to 3000 rpm) according to the flow rate or concentration of the sludge.

Then, the hollow rotary shaft 84 inserted and fixed to the motor shaft 83a of the rotary motor 83 rotates with improved durability from overload, wear and vibration due to high-speed rotation by the power lock 86 on the outer circumferential surface.

At the same time, the coagulant (polymer) supplied through the coagulant supply pipe 104 at an appropriate pressure by a pump (not shown) passes through the outer injection hole 102b formed to communicate with the inlet through hole 102a of the coagulant inlet body 102. It passes through the coupled inlet 103 and flows into the inlet through hole 102a.

At this time, as shown in FIG. 5, the coagulant having an appropriate pressure introduced into the inlet through hole 102a of the coagulant inlet body 102 passes through the inner inlet hole 83a in the central region of the rotating hollow shaft 84. (84) flows into the inside and moves to the other side along the inner circumferential surface of the rotating hollow shaft 84 rotating at high speed, and the inner spray hole 113 of the rotating hollow shaft 84 and the outer spray hole 114 of the mix nozzle 112 ) through which it is injected into the sludge inside the sludge storage tank 70.

At this time, as shown in FIG. 2, the outer injection hole 114 through which the coagulant is injected is composed of a straight portion 114a formed in communication with the inner inlet hole 84a and a fan-shaped expansion portion 114b, and the sludge spreads throughout. As the anti-wind block 111 and the mix nozzle 112, which are sprayed and fastened to the rotating hollow shaft 84, rotate at high speed, they are easily mixed with the sludge transported to the inside to be solidified.

In addition, foreign substances (hair, hair, and other fibers) included in the sludge are not wound around the rotating anti-wrap block 111 and the mix nozzle 112, so that the rotation motor 83 can be prevented from being overloaded.

On the other hand, as shown in FIG. 5, the coagulant that is introduced into the inlet through hole 102a of the coagulant inlet body 102 and cannot flow into the inner inlet hole 84a of the rotating hollow shaft 84 that rotates at high speed is the rotating hollow shaft 84 ) The inner circumferential surface is inserted into the outer circumferential surface, inserted inside the other side of the oil chamber 105, and into the oil chamber 105 by the mechanical seal 107 located inside the inlet through hole 102a of the coagulant inlet body 102. At the same time, the inflow is blocked, and the oil inside the oil chamber 105 is blocked from flowing out through the inlet through hole 102a of the coagulant inlet body 102, where the oil and coagulant inside the oil chamber 105 rotate at high speed. It serves to cool the rotating shaft 84.

In addition, as shown in FIGS. 3 and 4, the sludge mixed with the coagulant by the coagulant spray member 110 (small flocks are generated) is provided between the top of the sludge storage tank 70 and the scroll 50. Input of the mixed sludge A mixing wing that is supplied to the inside of the primary mix line 92 constituting the member 90 and supplied to the inside of the secondary mix line 95 that is detachably connected to the primary mix line 92 and fixed to extend on the inner circumferential surface. Secondary mixing occurs by collision while passing through (94), and large-sized flocs are generated and quickly introduced into the scroll (50) through the inner sludge input pipe (96) connected to the secondary mix line (94).

In this way, the mixed sludge produced with a large amount of floc injected into the scroll 50 is separated into liquid and solid by the scroll 50 rotating as the scroll rotating means 40, and the rotating drum rotating as the drum rotating means 20 ( 30) through the liquid discharge hole 31a and the cake discharge hole 33a, and through the liquid discharge port 11 and the cake discharge port 12 of the lower case 10, the liquid is discharged with high dehydration efficiency.

On the other hand, the operating state for another embodiment of the coagulant injection member 110 shown in FIG. 6 will be described.

The coagulant having an appropriate pressure introduced into the inlet through hole 102a of the coagulant inlet body 102 flows into the rotating hollow shaft 84 through the inner inlet hole 84a in the central area of the rotating hollow shaft 84. is formed in the rotating hollow shaft 84 constituting the coagulant spraying member 110 by moving to the other side along the inner circumferential surface of the rotating hollow shaft 84 which rotates at high speed. Evenly sprayed as sludge through the coagulant spraying hole 122 , the inflow of sludge into the interior is blocked.

At the same time, foreign substances (hair, hair, and other fibers) included in the sludge are not wound on the pair of blades 121 and the round anti-wrap block 120 having rounded corners, preventing the rotation motor 83 from overloading You will be able to do it.

The centrifugal separation, concentrating and dehydrating apparatus with built-in high-speed mixer for improving sludge treatment efficiency according to the present invention described above is not limited to the above-described embodiment, and without departing from the gist of the present invention claimed in the following claims Anyone with ordinary knowledge in the field belonging to the present invention will say that there is a technical idea to the extent that various changes can be implemented.

1: centrifugal separation, condensation and dehydration device 10: lower case
30: rotary drum 50: scroll
70: sludge storage tank 80: high-speed mixer
83: rotation motor 84: hollow rotation shaft
84a: inner inlet hole 90: mixed sludge supply member
92,95: 1st, 2nd mix line 94: mixing wing
96: inner input line 100: aggregate blocking member
110: coagulant spraying member 111,120: winding prevention block
112: mix nozzle 113: inner spray hole
114: outside injection hole 121: blade
122: coagulant injection hole

Claims (5)

a rotary drum 30 rotatably installed as a drum rotating means 20 on the other side of the lower case 10 and having a liquid discharge hole 31a at one end and a cake discharge hole 33a formed on the outer circumferential surface of the other side; It is rotatably reduced as a scroll rotation means 40 on one side of the rotary drum 30, and is located on the inner circumferential surface of the rotary drum 30 to supply sludge to the inside through the liquid discharge hole 31a of the rotary drum 30 and In the centrifugal separation, concentrating and dehydrating device composed of a scroll 50 for separating and discharging liquid and solid by discharging through the cake discharge hole 33a,
a sludge storage tank 70 mounted on the other front side of the lower case 10 and storing sludge transferred and supplied from the sludge storage tank;
The inner inlet hole (84a) of the hollow shaft (84) connected to the motor shaft (83a) of the rotational motor (83) rotatably connected to the motor shaft (83a) of the rotational motor (83) A high-speed mixer 80 for separating the solids by spraying the coagulant introduced through the hollow shaft 84 as the coagulant injection member 110 provided on the other side and mixing with the sludge; and
a primary mix line 92 detachably connected to the top of the sludge storage tank 70 as a flange and supplying the sludge mixed in the sludge storage tank 70 by the high-speed mixer 80; It is detachably connected to the primary mix line 92 as a flange, and the mixing wing 94 is fixed to the inner circumferential surface so that the mixed sludge passes through and is secondarily mixed so that large-sized flocs are generated. 2nd mix line (95) and; One end is connected to the secondary mix line 95 as a flange, and the other end is inserted so as to be located inside the scroll 50, so that the large-sized floc generated sludge is injected into the scroll 50. An inner input line (96) It is configured to include a mixed sludge input member 90 made of,
The coagulant injection member 110 is
A winding prevention block 111 having a circular cross section that is detachably fastened to the outer circumferential surface of the hollow shaft 84 of the other side of the circular plate 82;
a pair of mix nozzles 112 with rounded corners that are detachably fastened to both sides of the outer circumferential surface of the hollow rotating shaft 84 of the other area of the anti-wrap block 111 having a circular cross section;
A plurality of inner injection holes 113 formed on the other side of the hollow rotation shaft 84 to communicate with the inner diameter of the rotation hollow shaft 84;
An outer spray hole through which the coagulant introduced through the inner inlet hole 84a formed in the mix nozzle 112 in communication with the inner spray hole 113 and formed in the central region of the rotating hollow shaft 84 is sprayed to the outside ( 114), a centrifugal separation, concentration and dehydration device with a built-in high-speed mixer for improving sludge treatment efficiency, characterized in that composed of. delete delete The method of claim 1, wherein the coagulant injection member 110
a circular anti-wrap block 120 detachably fastened and fixed to the outer circumferential surface of the hollow shaft 84 of the other side of the circular plate 82;
A pair of blades 121 protruding and fixed to correspond to both sides of the outer circumferential surface of the hollow shaft 84 of the other side of the anti-wrap block 120 and having rounded corners;
High-speed mixer built-in centrifugal separation, concentration and dehydration device for improving sludge treatment efficiency, characterized in that composed of a coagulant injection hole 122 formed to correspond to the rotating hollow shaft 84 between the blades 121. The method of claim 4, wherein the coagulant injection hole 122
One end is sharp on the rotating hollow shaft 84 between the blades 121, and the other side is formed to penetrate widely, so that the supplied coagulant is evenly sprayed and the inflow of sludge is blocked. Improvement of sludge treatment efficiency, characterized in that High-speed blender built-in centrifugal separation, concentration and dehydration equipment for

Images