KR101244211B1 - Apparatus for processing adulteration material from sewage and wasted water - Google Patents

Abstract

PURPOSE: An adulteration processor for sewage and wasted water is provided to have an excellent process performance of adulteration included in the sewage or wasted water, which is almost equivalent to the previous application, with a simple structure, and to be optimized for sewage or wasted water treatment in a small to medium size which has various influx property phases including excrements, livestock wastewater, or domestic wastewater etc. CONSTITUTION: An adulteration processor(1) for sewage and wasted water comprises an equipment base(2), a disc screen(10), a screw press(20), a low speed dehydrator(30) and a fine sand discharger(40). The equipment base comprises a filtrate reservoir and a filtrate outlet bath. The disc screen is arranged on the upper part of the filtrate reservoir, and separates filtrate and adulteration from the sewage or wasted water introduced in the processor. The screw press is arranged in the outlet side of the disc screen, and extrudes the adulteration. The low speed dehydrator is arranged on the upper part of the filtrate outlet bath, and separates the fine adulteration from the filtrate pumped in the filtrate reservoir. The fine sand discharger is connected to the lower part of the low speed dehydrator, and discharges the fine adulteration separated from the low speed dehydrator.

Description

Apparatus for processing adulteration material from sewage and wasted water}

In the present invention, the sewage or wastewater input into the treatment unit is separated firstly from the filtrate through the gap provided in the screen unit of the disk screen, and the contaminant filtered on the upper part of the screen unit is transferred to a screw press to dehydrate and compress the treatment. The fine contaminants (seeds, animal hair, or sand) less than 2mm introduced into the filtrate storage tank together with the filtrate are pumped together with the filtrate with a low-speed centrifugal dehydrator to finally separate the filtrate and the fine contaminants. It is very economical and reasonable to treat small and small scale sewage and wastewater, and it can be used for various purposes such as purification of river or lake bottom and treatment of plant discharge in addition to treatment of sewage and wastewater. It relates to a sewage and sewage sewage treatment device.

In recent years, with the increase of urban population and the increase of livestock farms, a large amount of manure, livestock waste or domestic sewage is generated, and various kinds of wastewater cause serious pollution of groundwater, rivers and coastal waters. In addition, due to the odor generated from the waste water has a negative effect on the creation of a pleasant living environment.

Among the various wastewaters mentioned above, manure and livestock wastewater are treated in a separate purification facility for manure and livestock wastewater collected in each region for the management of government level, but in the case of livestock wastewater, Since the concentration is 20,000 ~ 25,000ppm, there is a problem that excessive load is applied to the treatment of the contaminants during operation of the purification plant.

Accordingly, in order to treat manure and livestock waste more efficiently, various contaminants are removed from the collected manure and livestock wastewater, which are formed into a liquid filtrate with a low concentration of suspended solids, and then sent to a final purification facility for treatment. In addition to manure and livestock waste, sewage and wastewater containing large amounts of contaminants are also treated in the same way.

As described above, sewage or livestock wastewater, such as manure, is separated into the filtrate and contaminants, and the manure or livestock wastewater is introduced into the housing constituting the main body of the processor, and the filtrate generated during the process of processing the first contaminant by a rotary screen and a dehydrator. Is stored in the filtrate storage tank, and the filtrate stored in the filtrate is pumped to a cyclone connected to the seed removal screen and centrifuge to remove the fine contaminants such as seeds, animal hairs and sesame components contained in the filtrate. In addition, a composite waste treatment system for supplying the filtrate thus treated to the final purification facility through the filtrate discharge tank is known and filed by the present applicant (patent number: 10-0212298).

Applicant's application for the composite waste treatment system is a device that separates and dehydrates the condensate and the filtrate three times from the inflow of manure and livestock wastewater, and the storage and discharge tank of the filtrate generated in the process are collected and installed in one processor. In addition, the overall volume and installation area of the processor and its fabrication cost were reduced, while the microfiltrate, such as seeds, animal hairs, and fine sand, contained in the filtrate, was more effectively removed.

However, the proposed composite waste treatment system proposes to collect a large amount of wastewater such as manure and livestock wastewater and domestic sewage and process them collectively, or to be suitable for a large-capacity treatment facility where a relatively large amount of wastewater flows through sewage pipes. As a result, it is uneconomical to apply the pre-claimed contaminant treatment system for the treatment of medium and small scale sewage and wastewater in which wastewater such as manure, livestock wastewater or domestic sewage flows into different properties.

In other words, the pre-applied contaminant comprehensive processor includes a housing constituting the processor body, a rotary screen and a dehydrator installed inside the housing, and a cyclone and seed removal for removing fine contaminants (seeds, animal hair, sand, etc.). As it is a large-scale treatment device including a screen, a centrifuge, and a fine sand discharger for final discharge of fine contaminants, the size of the facility is unnecessarily large for application to sewage or wastewater treatment of small and medium scales, and The cost burden for operation and maintenance also increases.

 For this reason, in the sewage treatment plant, manure treatment plant, or food waste treatment plant of a local government (city, county, ward) where small and small scale sewage or wastewater treatment is required, the comprehensive waste treatment system pre-claimed due to budget expenditure problems It is not easily applied, and in addition to sewage or wastewater treatment, there is a problem that causes a lot of troubles in terms of use for other purposes such as the collection and purification of sewage deposited on the bottom of a river or lake, or drainage treatment of a food factory.

Republic of Korea Patent Registration No. 10-0212298 (Notice date: October 01, 1999) Republic of Korea Patent Registration No. 10-0880270 (Notice date: January 28, 2009)

The present invention has been made in order to supplement the problems of the above-described application, the sewage or sewage in the sewage introduced into the processor is separated from the filtrate first through the gap provided in the screen unit of the disk screen, filtered on the top of the screen unit The contaminants are transferred to a screw press to dehydrate and compress. In this process, the micro-concrete of less than 2 mm (seed, animal hair or sand, etc.) introduced into the filtrate together with the filtrate is pumped together with the filtrate with a low-speed centrifugal dehydrator. By finally separating the fine and fine contaminants, it is very economically and reasonably able to treat small and small scale sewage and wastewater having various inflow properties, and in addition to the treatment of sewage and wastewater, Sewage and wastewater can be used for a wide variety of applications such as treatment of effluents To provide the handler with the impurities that technical challenges.

As a means for solving the above technical problem, the sewage and wastewater contaminant treatment device according to the present invention, the device base including the filtrate storage tank and the filtrate discharge tank, and disposed on the upper side of the filtrate storage tank while the sewage or A disk screen separating the filtrate and the contaminants from the waste water, a screw press disposed on the outlet side of the disk screen to perform the extruding process of the contaminants, and a fine liquid from the filtrate disposed on the upper side of the filtrate discharge tank and pumped in the filtrate storage tank. It is characterized by consisting of a low-speed dehydrator for separating the impurities, and a fine yarn discharger is connected to the lower end of the low-speed dehydrator for discharging the fine contaminants separated from the low-speed dehydrator.

The disk screen is provided with a screen housing in which an inlet chamber for sewage or wastewater is installed at the front side, and a filtrate outlet to the filtrate storage tank is provided at the lower side, and with a predetermined gap in the longitudinal direction in the screen housing. It consists of a plurality of screen units to rotate the power of the drive motor to transfer the contaminants to the screw press side, each screen unit has an elliptical screen with a tight gap along the rotation axis connected across the left and right walls of the screen housing The plate is installed, the elliptical screen plate is installed in each of the screen unit is to have a configuration arranged to cross at an angle of 90 degrees along the conveying direction of the contaminants.

The screw press is a screw casing in which the input hopper of the contaminants discharged through the disk screen is installed on the upper side, a feed screw inserted into the screw casing to rotate with the power of the screw motor, and the tip of the screw casing. It consists of a discharge duct of the contaminants installed at the side outlet, the bottom surface of the screw casing is formed with a filtrate discharge hole, the lower portion of the screw casing is configured to have a filtrate discharge port to the filtrate storage tank.

The low-speed dehydrator, the dehydrator casing is installed in the discharge passage and the filtrate discharge tank of the fine contaminants, respectively, and the dehydration screw is inserted into the dehydrator casing and rotated by the power of the dehydration motor, and the dehydration screw Is formed on the outside of the cylindrical dewatering screen to rotate with the dewatering screw, the wall portion of the dehydrator casing is installed through the filtrate transport pipe extending from the filtrate storage tank through the transfer pump, the filtrate transport pipe It is inserted into the inside of the screw pipe which is a rotating shaft of the dewatering screw, the screw pipe is formed with an outlet of the filtrate, the other side of the dewatering screen has a configuration in which the outlet of the fine contaminants formed.

The fine yarn discharger, the one end is connected to the discharge passage of the low-speed dehydrator, the other end is composed of a screw casing is installed with the fine yarn discharge port, the discharge screw is inserted into the screw casing is rotated by the power of the discharge motor.

In addition, the driving means of the screen unit constituting the disk screen is a gear transmission mechanism, the gear transmission mechanism is disposed between the main gear and one of the main gear is installed at one end of the rotating shaft of each screen unit, the main gear It consists of an auxiliary gear which is installed to mesh with, the gear shaft of the auxiliary gear is installed on the wall of the screen housing, the rotating shaft of the screen unit disposed on the foremost side of the screen unit has a driven shaft associated with the drive shaft of the drive motor It is characterized by.

In addition, the cleaning brush of the screen unit is installed in the inner space of the screen housing corresponding to the upper side of the screen unit, the cleaning brush is in contact with the surface of the screen unit to be a cylindrical brush that rotates with the screen unit The dewatering screen of the low-speed dehydrator is characterized in that the dual screen structure is installed in close contact with the inner side primary screen formed with the slit-shaped dehydration hole, the outer side secondary screen formed with a circular dehydration hole.

As an additional matter, screen shafts extending to the outside through the central portion of the wall of the dehydrator casing are connected to both ends of the dehydration screen, and screen shafts are provided at the other ends of the screw pipes corresponding to the insertion portion of the filtrate transfer pipe. A screw shaft extending through and connected to the outside is connected, and a screen pulley is installed at an end of the screen shaft through which the screw shaft passes, and a screw pulley is installed at an end of the screw shaft extending through the screen shaft. The drive shaft is characterized in that two drive pulleys are respectively connected to the screen pulley and screw pulley and the belt is installed.

According to the present invention as described above, while applying a simple structure consisting of a disk screen, a screw press, a low-speed dehydrator and a fine yarn discharger, the treatment performance of the contaminants contained in sewage or wastewater is an effect of providing a superior treatment performance of a level close to the prior application. Due to this, there is an effect of providing a complex treatment device optimized for the treatment of small and medium scale sewage or wastewater having various inflow properties such as manure, livestock wastewater or domestic sewage.

As described above, the treatment efficiency is maintained while reducing the size of the contaminant treatment machine, so that the cost of equipment and maintenance of the contaminant treatment machine can be reduced to the maximum. In addition to the sewage treatment plant, manure treatment plant or food waste treatment plant in the county and wards, it can be used for a wide variety of purposes such as the collection and purification of sewage deposited on the bottom of rivers or lakes, and the drainage treatment of food factories. To provide a very useful effect.

1 is a plan view of the sewage and sewage sewage treatment unit according to the present invention.
2 is a schematic side cross-sectional view of FIG. 1;
3 is a left side view of FIG. 1;
4 is a cross-sectional view taken along the line AA of FIG.
5 is a cross-sectional view taken along line BB of FIG. 2.
6 is a cross-sectional view taken along line CC of FIG. 2.
7 is an enlarged side cross-sectional view showing the main portion of the dewatering screen.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

First, the overall configuration of the sewage and wastewater contaminant treatment device 1 according to the present invention is a device base (2) including a filtrate storage tank (4) and a filtrate discharge tank (8), as shown in Figs. And a disk screen 10 disposed on the upper side of the filtrate storage tank 4 to separate the filtrate and the contaminants from sewage or wastewater introduced into the treatment unit, and disposed at the outlet side of the disk screen 10. A screw press 20 for performing an extrusion treatment, a low speed dehydrator 30 arranged at an upper side of the filtrate discharge tank 8 and separating fine contaminants from the filtrate pumped in the filtrate storage tank 4, and the low speed It is connected to the lower end of the dehydrator 30 is composed of a fine yarn discharger 40 for discharging the fine contaminants separated from the low-speed dehydrator (30).

The device base (2) connects the filtrate storage tank (4) and the filtrate discharge tank (8), which form the main base of the contaminant treatment machine (1), according to the present invention, and the disk screen (10) and the screw press. (20) and the low-speed dehydrator (30) and to provide a variety of frame and bracket structure that can be installed stably the pump mechanism for operating the bar, in this respect the structure and shape of the device base (2) is very diverse Note that changes are possible.

The disk screen 10 constituting the contaminant treatment device 1 of the present invention, as shown in Figures 1 to 4, the input chamber 3 of the sewage or waste water is installed on the front side and to the filtrate storage tank (4) The filtrate discharge port 19 is installed on the basis of the screen housing 11 provided at the lower side, and the input pipe (3a) is connected to the front surface of the input chamber 3, the screen housing 11 The rear surface of is provided with an opening for inputting the contaminants to the screw press 20 side.

In the drawing, the upper surface of the screen housing 11 is also opened, but a cover is provided with an opening lid or a cover provided with an inspection window or a check door to prevent foreign substances from entering the outside and odor leakage. It may be installed on the upper surface of the screen housing 11, a plurality of (5 in the drawing) screen unit (5 in the figure) to rotate the power of the drive motor 15 to transfer the contaminants to the screw press 20 side (top) 12) is installed.

Each screen unit 12 has an ellipsoidal screen plate 13 with a tight gap, preferably a gap of about 2 mm, along a rotating shaft 14 connected horizontally across the left and right walls of the screen housing 11. ) Is installed, and each screen unit 12 is also installed in the longitudinal direction along the screen housing 11 with a clearance gap of about 2mm, between the gap between the elliptical screen plate 13 and the screen unit 12 The gap provides an exit gap for the filtrate and fine contaminants (such as seeds or animal hairs or sand components of less than 2 mm), and contaminants having larger particles are filtered out of the top of the screen unit 12.

As described above, the screen unit 12 is an arrangement structure of the screen unit 12 to transfer the contaminants filtered from the upper part of the screen unit 12 to the screw press 20, as shown in FIG. The elliptical screen plate 13 installed at 12) is arranged to intersect at an angle of 90 degrees along the conveying direction of the impurities.

In other words, the screen unit 12 provided with each elliptic screen plate 13 in the horizontal direction (long axis direction) on the rotating shaft 14, and each elliptic screen plate 13 perpendicular to the rotating shaft 14 (short axis) The screen units 12 installed in an alternate direction along the longitudinal direction of the screen housing 11, while each screen unit 12 is rotated at the same time by the drive motor 15, The ellipsoidal screen plate 13 of the screen unit 12 is located in the rear side of the ellipsoidal screen plate 13 of the screen unit 12 located in the ellipsoidal screen plate 13 is a conveying method is applied.

As described above, various methods may be applied to each screen unit 12 so as to be simultaneously rotated by the driving motor 15. As a representative example, the screen unit 12 penetrates through one wall of the screen housing 11 to the outside. A pair of driven sprockets or driven pulleys is fixedly installed at the end of the rotating shaft 14 of each of the extending screen units 12, and each driven sprocket is provided from a drive sprocket or drive pulley provided on the drive shaft 15a of the drive motor 15. Or zigzag chains or belts along a driven pulley.

However, if the chain-type or belt-type electric mechanism as described above is applied, there is a possibility that each screen unit 12 rotates at different speeds according to the tensile force applied to the chain or belt, which may cause sewage or wastewater. 3 is not preferable in terms of filtering the contained contaminants to a certain level and in terms of quiet operation of the disc screen 10, so that each screen unit 12 can always be rotated quietly at the same speed as in FIG. Most preferably, the gear transmission mechanism 16 is applied.

The gear transmission mechanism 16 is fixed to the end of the rotation shaft 14 of each screen unit 12 extending through the wall (left in the drawing) of the screen housing 11 to the outside of the main gear (16a) And an auxiliary gear 16b disposed between the main gears 16a on the lower side of the main gear 16a and installed to engage with the main gear 16a, and including a gear shaft of the auxiliary gear 16b. 16c) is installed based on the wall of the screen housing 11, and supports the rotational operation of the screen unit 12 inside the left and right walls of the screen housing 11, while reinforcing the wall of the screen housing 11; The screen rail 18 is installed for this purpose.

In addition, as shown in FIG. 1 for the operation of the gear transmission mechanism 16, the rotating shaft 14 of the screen unit 12 located on the foremost side of each screen unit 12 is the drive shaft of the drive motor 15. As the driven shaft 15b associated with the 15a, the transmission means between the drive shaft 15a and the driven shaft 15b is shown as a chain and a sprocket are applied, and smooth rotation of the screen unit 12 is achieved. To this end, each of the rotating shafts 14 is provided with a bearing unit 14a.

In addition, the cleaning brush 17 of the screen unit 12 is installed in the inner space of the screen housing 11 corresponding to the upper side of the screen unit 12, the cleaning brush 17 as shown in FIG. While scraping the surface of the screen unit 12 while rotating in conjunction with the screen unit 12 in contact with the surface of the screen unit 12, while screwing the impurities caught in the screen unit 12 with the screen unit 12 A cylindrical brush provided on the basis of the brush shaft 17a so as to be pushed toward the (20) side is preferable, and the bearing unit 17b is also applied to both ends of the brush shaft 17a.

In the screw press 20 constituting the contaminant treatment device 1 of the present invention, as shown in FIGS. 1 to 3 and 5, the input hopper 22 of the contaminant discharged from the disk screen 10 is on the upper side. It is installed on the basis of the screw casing 21 installed in the, the lower portion of the screw casing 21, the filtrate discharge port 27 to the filtrate storage tank 4 is installed, the bottom surface of the screw casing 21 is the filtrate discharge port In connection with the (27) has a porous plate shape to discharge the filtrate dewatered from the screw press 20 to the filtrate storage tank (4), the diameter of the filtrate discharge hole (21a) forming the porous plate is about 6 ~ 8mm Is preferred.

In addition, the screw casing 21 is inserted into the feed screw 23 for discharging the contaminants introduced through the disk screen 10 by extrusion (extrusion), the front end side of the screw casing 21 ( Right end in Figure 5) is provided with a debris outlet 24 to form a narrow outlet for dehydration of the debris, the discharge duct 25 is connected to the debris discharge port (24).

In addition, the rear end of the screw shaft 23a (the left end in FIG. 5) of the transfer screw 23 extends through the rotational support 28 of the screw casing 21 and extends to the outside. The driven sprocket and the bearing unit 23b are installed on the screw shaft 23a, and the driven sprocket is connected to the drive sprocket and the chain installed on the drive shaft 26a of the screw motor 26, thereby operating the screw motor 26. Accordingly, the transfer screw 23 is rotated in the screw casing 21 to extrude the contaminants toward the discharge duct (25).

As described above, the disk screen 10 and the screw press 20 performs a function of primarily separating the contaminants from sewage or waste water, and in this process, the filtrate containing the fine contaminants is the disk screen 10 and the screw press ( 20 is introduced into the filtrate storage tank 4 through the filtrate discharge port 19, 27, the filtrate storage tank 4 is disposed in the lower portion of the disk screen 10 and the screw press 20 to support the device It will also perform the function.

On the other hand, the filtrate storage tank 4 has a separate diaphragm 4a as shown in FIG. 2, similar to the technical details of the complex processing system, which the applicant has filed in 2005 patent application No. 61539 and patented as No. 10-518805. By the bottom of the upper space including the disk screen 10 and the filtrate discharge ports (19, 27) of the screw press 20 toward the lower side of the upper and lower strait (ie, funnel type) It may be partitioned into a first storage space and a second storage space formed under the first storage space to form the remaining space of the filtrate storage tank 4.

In this case, an overflow passage (not shown) for communicating each storage space will be installed at an upper side of the diaphragm 4a that divides the first storage space and the second storage space, and corresponds to the first storage space. A filtrate transfer pipe 5 as a main suction pipe is connected to the bottom of the filtrate storage tank 4 and is an auxiliary suction pipe extending through the diaphragm 4a from the filtrate transport pipe 5 to the bottom of the second storage space. (Not shown) is further provided.

The filtrate transport pipe (5) connected to the bottom side of the filtrate storage tank (4) as described above is extended through a transfer pump (6) having a pump motor (7) and then connected to the low-speed dehydrator (30), As shown in FIGS. 1 to 3 and 6, the low speed dehydrator 30 includes a dehydrator provided with a discharge passage 36 and a filtrate discharge port 37 to the filtrate discharge tank 8, respectively, on the lower side. It is installed based on the casing 31.

Inside the dehydrator casing 31 is a dewatering screw 33 that rotates with the power of the dehydrating motor 34 and a cylindrical dewatering that is installed outside the dewatering screw 33 and rotates together with the dewatering screw 33. The screen 32 is inserted and installed, and the filtrate transfer pipe 5 is inserted along the rotation axis of the dewatering screw 33 through a central portion of the wall of the dehydrator casing 31 (left in FIG. 6), which is To this end, the rotating shaft of the dewatering screw 33 becomes a hollow pipe-type screw pipe 33a into which the filtrate transfer pipe 5 can be inserted.

In addition, an outlet hole 33b is formed at the periphery of the screw pipe 33a corresponding to the dewatering screw 33 so that the filtrate introduced through the filtrate transport pipe 5 flows into the dewatering screen 32 side. On one side (right side in FIG. 6) of the dewatering screen 32, an outlet 32c for discharging the fine contaminants transported along the dewatering screw 33 is provided, and the outlet 32c opens the discharge passage 36. It communicates with the fine yarn discharger 40 via.

As described above, the dehydrating screw 33 and the dehydrating screen 32 are rotated at the same time by using the screw pipe 33a of the dewatering screw 33 itself as a rotating shaft, and one side end of the screw pipe 33a is dehydrated. Although extending to the outside of the casing 31 may be connected to the drive shaft (34a) of the dewatering motor 34 and the transmission means (chain or belt, etc.), the rotational speed of the dewatering screen 32 and the dewatering screw 33 mutually Alternatively, it is even more advantageous in terms of ensuring the discharge performance of the fine contaminants by the dewatering screw 33.

To this end, as shown in Figures 1 and 6, both side ends of the dewatering screen 32 is connected to the screen shaft 35 extending through the central portion of the wall of the dehydrator casing 31 to the outside, and each of The screen shaft 35 is rotated and supported by the bearing unit 35b of the apparatus base 2, and the filtrate transfer pipe 5 penetrates through the screen shaft 35 on one side (left side in FIG. 6) by a screw pipe. Inserted into the inside of the (33a), the other end (right end in Figure 6) of the screw pipe 33a corresponding to the insertion portion of the filtrate transfer pipe 5 penetrates the screen shaft 35 to the outside Screw shaft 38 extending to the connection is installed.

In addition, a screen pulley 35a is installed at an end portion of the screen shaft 35 through which the screw shaft 38 penetrates, and a screw pulley at an end portion of the screw shaft 38 extending through the screen shaft 35. At the same time, the driving shaft 34a of the dehydration motor 34 is provided with a screen pulley 35a and two drive pulleys 34b connected to the belt pulley 38a and a belt, respectively. The rotating support bearing unit 33c is also interposed between the portion 5 and the screw shaft 38 passing through the screen shaft 35.

Accordingly, by rotating the screen pulley 35a and the screw pulley 38a connected to each driving pulley 34b separately using one dewatering motor 34, the dewatering screen 32 and the dewatering screw 33 The method of varying the rotational speed of the dewatering screen 32 and the dewatering screw 33 can be rotated at different speeds, as shown in the drawing, the belt wound around the screen pulley 35a and the screw pulley 38a. By varying the number of the power of the dehydration motor 34 to be transmitted to different levels, or a variety of methods such as varying the diameter (deceleration ratio) of the screen pulley (35a) and screw pulley (38a) can be applied, dehydration As for the rotation speed ratio of the screen 32 and the dewatering screw 33, about 10: 7-9 are preferable.

On the other hand, as the most preferred application of the dewatering screen 32, as shown in Figure 7, the inner side primary screen (32a) formed with a slit (slit) dehydration hole, the outer side secondary screen formed with a circular dehydration hole (32b) is a double screen structure is installed in close contact, by applying such a double screen structure so that the removal and dewatering function of the fine contaminants are separately performed by the primary screen (32a) and the secondary screen (32b), It is possible to minimize the clogging of the dehydration hole by the fine contaminants and increase the dehydration efficiency of the filtrate.

In other words, by the centrifugal force generated during the rotation of the dewatering screen 32, fine contaminants having a size of less than 2 mm are filtered out by the slit type dewatering hole of the primary screen 32a, and by the primary screen 32a. In the process of passing the filtered fine condensate to the outlet 32c along the dewatering screw 33, the water and the filtrate contained in the fine condensate fall out of the dewatering screen 32 through the circular dehydration hole of the secondary screen 32b. Is to get out.

To this end, the cutting width (minimum diameter) of the slit-type dehydration hole formed in the primary screen 32a is preferably about 1.5 to 2 mm so as to filter out fine contaminants less than 2 mm in size, and the slit-type dewatering hole The length of the is preferably about 5cm, the diameter of the circular dewatering hole formed in the secondary screen 32b is preferably 25 to 30mm for smooth dewatering performance.

In addition, it is necessary that the fine contaminants attached to the inner circumferential surface of the primary screen 32a do not escape to the circular dehydration hole of the secondary screen 32b due to excessive rotational force during the dehydration operation of the filtrate using the dehydration screen 32. For this purpose, the rotation speed of the dehydration screen 32 by the dehydration motor 34 is preferably about 120 to 250 rpm, and the dehydration motor 34 uses a reducer integrated motor for easy control of the rotation speed. Preferably, the pump motor 7, the drive motor 15, the screw motor 26 and the discharge motor 44 also preferably use a motor having a speed reducer.

As described above, the dewatering screw 33 is installed in the screw pipe 33a, and the dewatering screen 32 is disposed outside the dewatering screw 33, while the dewatering screw 33 and the dewatering screen 32 are different from each other. By rotating at a speed, the low-speed dehydrator 30 is capable of simultaneously performing the functions of the seed removal screen and the centrifuge of the pre-applied contaminant synthesis processor.

In addition to the application of the low-speed dehydrator 30 as described above, instead of the rotary screen of the original application using a large disc using a small ellipsoidal screen plate 13 to improve the separation and transfer function of the contaminants By applying, it is possible to reduce the size of the installation compared to the pre-applied contaminant processing system, while the performance of the contaminant treatment is almost close to the prior application.

The fine yarn discharger 40 constituting the contaminant processor 1 of the present invention together with the low speed dehydrator 30 has one side (lower side in the drawing) of the low speed dehydrator 30 as shown in FIG. 6 more clearly. A screw casing 41 connected to the discharge passage 36 and provided with a fine thread discharge port 43 at the other end (upper side in the drawing), and inserted into the screw casing 41 to power the discharge motor 44. Consisting of the discharge screw 42 to rotate, the bearing unit for supporting the rotation of the discharge screw 42 is also applied to the upper and lower side walls of the screw casing 41, of course.

The discharge motor 44 is installed on the motor bracket 45 fixed to the upper side of the screw casing 41, a drive sprocket is installed on the drive shaft 44a of the discharge motor 44, the screw casing 41 A driven sprocket is installed on the screw shaft 42a of the discharge screw 42 extending through the upper end side of the), and the driving sprocket and the driven sprocket are connected by a chain.

On the other hand, the filtrate discharge tank 8 is disposed in the lower portion of the low-speed dehydrator 30 to communicate with the filtrate discharge port 37 of the low-speed dehydrator 30, the fine yarn discharger 40 is the lower end side of the filtrate discharge tank ( 8) is inserted into the interior of the low-speed dehydrator 30 in the state connected to the fine concave discharge passage 36, it is made of a structure extending inclined upwardly through the side wall portion of the filtrate discharge tank (8).

Due to this, the filtrate discharge tank 8 is a structure for supporting the low-speed dehydrator 30 at the bottom, and becomes a structure for the stable installation of the fine yarn discharger 40, the low-speed dehydrator (at the bottom side of the filtrate storage tank 8) A filtrate discharge pipe 9 for supplying the filtrate, which has been made through 30) to the removal of fine contaminants, to the final purification facility is connected.

Hereinafter, a process of treating sewage and wastewater using the contaminant treatment device 1 of the present invention having the above configuration will be described in detail with reference to FIG. 2.

First, wastewater such as manure, livestock wastewater or domestic sewage is collected by a collection vehicle such as tank lorry, and the wastewater is transported to an area equipped with a purification facility, and then the discharge hose of the collection vehicle of the contaminant treatment machine 1 according to the present invention. By connecting the inlet pipe (3a) or inlet such as sewage pipes with the inlet pipe (3a) of the contaminant treatment machine 1 according to the present invention, the sewage or waste water is passed through the input chamber (3) to the disk screen (10) To flow to the side.

In this case, when the sewage or waste water is introduced into the disk screen 10, the motor mechanism constituting the contaminant processing apparatus 1 of the present invention may be manually operated, or the periphery of the input pipe 3a or the input chamber 3 may be used. By installing a sensor mechanism not shown in the inside of the sewage or waste water to the disk screen 10, the motor mechanism constituting the contaminant processor 1 of the present invention may be automatically operated.

When the sewage or wastewater is introduced into the disk screen 10 as described above, the sewage or wastewater contaminants are filtered out of the top of the screen unit 12 of the disk screen 10, the fine contaminants in the sewage or wastewater ( Seeds, animal hairs, or sand having a size of less than 2 mm) are introduced into the filtrate storage tank 4 together with the filtrate through the gap provided in the screen unit 12 and the filtrate discharge port 19 of the screen housing 11.

In addition, the contaminants filtered from the upper portion of the screen unit 12 is introduced into the screw casing 21 through the feed hopper 22 of the screw press 20 in accordance with the rotation of the screen unit 12, and then the transfer screw 23 Is rotated and transported to the contaminant discharge port 24 side by the rotation of the), in this process, the water contained in the contaminant is further dehydrated, so that the filtrate discharge hole 21a and the filtrate outlet 27 of the screw casing 21 are dehydrated. Accordingly, while entering the filtrate storage tank 4, the debris from which water is dehydrated is discharged to the outside of the screw casing 21 via the discharge duct 25.

As described above, the filtrate introduced into the filtrate storage tank 4 through the filtrate discharge ports 19 and 27 of the disk screen 10 and the screw press 20 and the fine contaminants contained therein are conveyed by the pump motor 7. According to the operation of (6), it is supplied to the inside of the low speed dehydrator 30 via the filtrate conveying pipe 5.

As described above, the filtrate supplied into the low-speed dehydrator 30 flows down to the dewatering screen 32 through the outlet hole 33b formed in the screw pipe 33a of the dewatering screw 33, and the dewatering screen 32. Due to the centrifugal force generated during the rotation of the fine condensate contained in the filtrate is filtered in the primary screen (32a) of the dewatering screen 32, the remaining filtrate is passed through the secondary screen (32b) of the dewatering screen (32) It is discharged to the outside.

As described above, the fine contaminants filtered from the primary screen 32a of the dewatering screen 32 are transferred to the outlet 32c of the dewatering screen 32 by the rotation of the dewatering screw 33, and then the dehydrator casing 31 Through the discharge passage 36 is introduced into the fine yarn discharger 40, the final discharge treatment, the filtrate made up to the removal of fine contaminants are introduced into the filtrate discharge tank (8) through the filtrate outlet 37 of the dehydrator casing (31) Next, it is supplied to the final purification facility via the filtrate discharge port (9) of the filtrate discharge tank (8).

As described above, while applying a simple structure consisting of a disk screen 10, a screw press 20, a low-speed dehydrator 30 and a fine yarn discharger 40, the processing performance of the contaminants contained in the sewage or waste water is almost close to the prior application. It is possible to provide excellent treatment performance, thereby providing a complex treatment device (1) optimized for the treatment of small and medium-sized sewage or wastewater having various inflow properties such as manure, livestock wastewater or domestic sewage.

As described above, the treatment efficiency is maintained while reducing the size of the contaminant treatment machine 1, and thus, the cost of equipment and maintenance of the contaminant treatment machine 1 can be reduced to the maximum. It is not only used for sewage treatment plant, manure treatment plant or food waste treatment plant of municipalities (city, county, ward) but also for various purposes such as collection and purification of sediment deposited on the bottom of river or lake, or drainage of food factory. It is possible to provide a possible contaminant handler (1).

Description of Reference Numerals 1 of the impurities disposal 2 device base 3 input chamber
3a: input tube 4: filtrate storage tank 4a: diaphragm
5: filtrate transfer pipe 6: transfer pump 7: pump motor
8: filtrate discharge tank 9: filtrate discharge pipe 10: disk screen
11 screen housing 12 screen unit 13 oval screen plate
14: rotation shaft 15: drive motor 15b, 26b: driven shaft
15a, 26a, 34a, 44a: drive shaft 14a, 17b, 23b, 33c, 35b: bearing unit
16 Gear Drive Mechanism 16a Main Gear 16b Auxiliary Gear
16c: Gear Shaft 17: Cleaning Brush 17a: Brush Shaft
18: screen rail 19, 27, 37: filtrate outlet 20: screw press
21,41: Screw casing 23a, 38,42a: Screw shaft
21a: filtrate discharge hole 22: hopper 23: transfer screw
24: miscellaneous discharge outlet 25: discharge duct 25a: vent
26: screw motor 28: rotary support 30: low speed dehydrator
31: dehydrator casing 32: dehydration screen 32a: primary screen
32b: secondary screen 32c: outlet 33: dewatering screw
33a: screw pipe 33b: outflow hole 34: dewatering motor
34b: driving pulley 35: screen axis 35a: screen pulley
36: discharge passage 38a: screw pulley 40: fine yarn discharger
42: discharge screw 43: fine thread outlet 44: discharge motor
45: motor bracket

Claims (4)

In the contaminant treatment system to separate the contaminants contained in sewage or waste water from the filtrate,
The contaminant treatment unit 1 is provided with an apparatus base 2 including a filtrate storage tank 4 and a filtrate discharge tank 8, and sewage or wastewater disposed on an upper side of the filtrate storage tank 4 and introduced into a processor. The disk screen 10 for separating the filtrate and the contaminants, a screw press 20 disposed on the outlet side of the disk screen 10 to perform the extrusion process of the contaminants, and the upper side of the filtrate discharge tank (8) The low-speed dehydrator 30 is disposed and separated from the filtrate pumped in the filtrate storage tank 4 and connected to the lower end of the low-speed dehydrator 30 to discharge the fine contaminants separated from the low-speed dehydrator 30 It is made of fine yarn discharger (40),
The disk screen 10 has a screen housing 11 having a discharge chamber 3 for sewage or wastewater installed at the front side, and a filtrate discharge port 19 to the filtrate storage tank 4 at the lower side thereof, and the screen housing. (11) is provided with a plurality of screen units 12 are installed with a predetermined gap along the longitudinal direction while rotating by the power of the drive motor 15 to transfer the contaminants to the screw press 20 side, each of the The screen unit 12 of the ellipsoidal screen plate 13 is provided with a tight gap along the rotating shaft 14 connected across the left and right walls of the screen housing 11, each screen unit 12 Elliptical screen plate 13 is installed to be arranged to cross at an angle of 90 degrees along the conveying direction of the miscellaneous material,
The screw press 20 is a screw casing 21 in which the input hopper 22 of the contaminant discharged through the disk screen 10 is installed at the upper end side, and the screw press 21 is inserted into the screw casing 21 and installed in the screw. It consists of a conveying screw 23 that rotates by the power of the motor 26 and the discharge duct 25 of the contaminant is installed at the outlet side of the screw casing 21, the bottom surface of the screw casing 21 A filtrate discharge hole 21a is formed, and a filtrate discharge port 27 to the filtrate storage tank 4 is installed at the lower portion of the screw casing 21,
The low-speed dehydrator 30, the dehydrator casing 31 is provided with a discharge passage 36 and a filtrate discharge port 37 to the filtrate discharge tank 8, respectively, on the lower end side of the fine contaminant, and the inside of the dehydrator casing 31 A dewatering screw 33 inserted into and rotating by the power of the dewatering motor 34 and a cylindrical dewatering screen 32 installed outside the dewatering screw 33 and rotating together with the dewatering screw 33. In the wall portion of the dehydrator casing 31, a filtrate transport pipe 5 extending from the filtrate storage tank 4 through the transfer pump 6 is installed therethrough, and the filtrate transport pipe 5 is a dewatering screw. It is inserted into the inside of the screw pipe (33a) which is the rotation axis of the 33, the screw pipe (33a) is formed with an outlet hole (33b) of the filtrate, the other side of the dehydration screen 32 Outlet 32c is formed,
The fine yarn discharger 40, the one end is connected to the discharge passage 36 of the low-speed dehydrator 30, the screw casing 41 is provided with a fine yarn discharge port 43 at the other end, the inside of the screw casing 41 Sewage and wastewater sewage treatment device, characterized in that consisting of a discharge screw 42 is inserted into the rotation of the power of the discharge motor 44. According to claim 1, wherein the drive means of the screen unit 12 constituting the disk screen 10 is a gear transmission mechanism 16,
The gear transmission mechanism 16 is disposed between the main gear 16a provided at one end of the rotation shaft 14 of each screen unit 12 and the main gear 16a and meshes with the main gear 16a. It consists of an auxiliary gear (16b) that is installed so that
The gear shaft 16c of the auxiliary gear 16b is installed on the wall of the screen housing 11, and the rotating shaft 14 of the screen unit 12 disposed at the foremost side of the screen unit 12 is a drive motor. A sewage and wastewater contaminant treatment device, characterized in that the driven shaft (15b) associated with the drive shaft (15a) of (15). The washing brush 17 of the screen unit 12 is installed in the inner space of the screen housing 11 corresponding to the upper side of the screen unit 12.
The washing brush 17 is in contact with the surface of the screen unit 12, the sewage and wastewater sewage treatment device, characterized in that the cylindrical brush to rotate with the screen unit 12. The dewatering screen 32 of the low speed dehydrator 30, the inner primary screen 32a in which a slit-shaped dewatering hole is formed, and circular dewatering according to any one of claims 1 to 3. The outer side secondary screen 32b in which the ball is formed is a double screen structure installed in close contact,
Both side ends of the dewatering screen 32 are connected to the screen shaft 35 extending through the center of the wall of the dehydrator casing 31 to the outside, corresponding to the opposite side of the insertion portion of the filtrate transport pipe (5) The other end of the screw pipe 33a is connected to the screw shaft 38 extending through the screen shaft 35 to extend to the outside,
A screen pulley 35a is installed at the end of the screen shaft 35 through which the screw shaft 38 penetrates, and a screw pulley 38a at the end of the screw shaft 38 extending through the screen shaft 35. Is installed, the drive shaft (34a) of the dehydration motor 34, the sewage and wastewater, characterized in that the screen pulley (35a) and the screw pulley (38a) and two drive pulleys (34b) are connected to the belt, respectively Dragons dust handler.

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