Foreign matter treatment apparatus

Abstract

The present invention provides a foreign matter treatment apparatus that separates, in a primary hopper, moisture from foreign matter in the foreign matter to be treated that has been discharged from pigpens and the like, and receives inflow of the moisture discharged from the primary hopper and reprocesses same into fine foreign matter and moisture, thus enabling foreign matter to be treated without using a chemical coagulant.

Description

Junk treatment device

[0001] The present invention relates to a wastewater treatment device that discharges filtered water from an influent containing various wastewaters discharged from a sewage treatment facility, pigsty, cowshed, etc., dehydrates the water, and discharges the dehydrated wastewater to the outside.

[0002] Patent Registration No. 10-2266589 (Title of invention: Device for treating waste) (hereinafter referred to as “prior art”), applied for and registered by the applicant of the present invention, discloses a device for treating waste coming from a pigsty.

[0003] Fig. 1 is a perspective view for explaining the overall configuration of the prior art, Fig. 2 is a plan view of the body of the hopper of Fig. 3, and Fig. 3 is a perspective view of the hopper of the prior art.

[0004] A prior art impurity treatment device (100) is composed of a hopper (110) into which impurities are introduced, primarily discharging moisture and discharging the remainder to a lower device, a screw press unit (130) that compresses impurities discharged from the hopper (110) and separates and discharges moisture and compressed impurities during the compression process, a case (121) and a motor unit (120) installed inside the case to provide rotational force to the rotational axis of the screw press unit (130), a frame (140) that supports the devices, pipes for discharging moisture discharged from the hopper (110) and the screw press unit (130), and a control unit for controlling valves and electric devices installed in the devices.

[0005] The hopper (110) is composed of a body (112) having an open upper surface and a screw press section (130) connected to the lower surface, which primarily filters moisture from impurities introduced inside and discharges them to the outside, and discharges the impurities from which moisture has been filtered to the screw press section (130) connected to a through hole (113) formed in the center of the lower surface, and a cover (111) which closes the upper surface of the body (112) and has an impurity inlet (116) formed in the center or on one side.

[0006] In addition, a screen is installed on the inside of the case of the body (112) to discharge moisture from impurities away from the case surface and to discharge moisture collected at the bottom of the hopper to the outside through the primary filtered water discharge pipe (261).

[0007] At this time, two types of screens are installed. As shown in Fig. 2, the hopper has a rectangular shape when viewed from the top, and the two screens installed on the long horizontal side are mesh-shaped mesh-type screens (114), and the two screens installed on the vertical side are circular bar-type screens (115) and (115') in which bars with a circular cross-section are spaced at equal intervals. The circular bar-type screen (115) has a mesh structure that forms the screen in which circular bars (115-1) with a circular cross-section are spaced at equal intervals, and the circular bars (115-1) do not have sharp corners on the outer surface, and the impurities are not caught and fixed between the circular bars, but move downward smoothly, so that moisture is collected on the inner surface of the case of the body (112) and discharged to the outside.

[0008] A sediment inlet pipe (117) passes through the sediment inlet port (116) of the cover (111) of a hopper having such a structure, and branch pipes (117-1), (117-2) branching off toward circular bar type screens (115), (115') are installed at the ends of the sediment inlet pipes (117), and discharge pipes (117-3), (117-4) are installed vertically to the bars of the circular bar type screen (115) at the ends of the branch pipes (117-1), (117-2), and discharge ports (117-5), (117-6) are installed at the portions of the discharge pipes (117-3), (117-4) facing the circular bar type screen (115) and are formed to be inclined with respect to the vertical direction and have a structure to increase discharge pressure.

[0009] The hopper of the prior art is composed of a mesh type screen (114) and a circular bar type screen (115), (115'). However, if impurities such as pig hair components become entangled in the mesh type screen (114), not only can it no longer perform its screen function, but the stagnant impurities also create a source of contamination with a foul odor.

[0010] In addition, if the spacing between the circular bars of the circular bar type screen (115), (115') is made narrow, moisture discharge does not occur smoothly, so excessive moisture flows into the screw press section (130), which causes the dehydration process to take a long time, thus causing the overall work time to be long. In addition, if the spacing between the circular bars is installed too wide, impurities pass through the circular bar type screen (115), (115') and are discharged to the outside, which causes the dehydration process to not be performed, which is a problem.

[0011] In addition, the water separated from the impurities in the hopper (110) is collected in a drainage tank, but since the separated water contains a large amount of fine impurities, coagulation does not occur naturally, so a chemical coagulant must be used for coagulation, which not only increases the system operating cost but also causes environmental pollution.

[0012] The present invention has been devised in consideration of such problems, and the solution of the present invention is to install at least two hoppers for separating impurities and moisture, and to separate relatively large impurities by widening the interval between the circular bars in the first hopper, and to precisely separate moisture and impurities by narrowing the interval between the circular bars in the successive hoppers, thereby increasing the separation speed of moisture and impurities and improving the precision of separation.

[0013] In addition, the present invention aims to reduce environmental pollution while lowering system operating costs by using a natural circulation method for filtering impurities without using a coagulant.

[0014] A solution for solving the above problem comprises a device for treating impurities that separates and discharges moisture and impurities from impurities to be treated that contain moisture, comprising: a first hopper that receives the impurities containing moisture and primarily separates them into impurities and moisture; a screw press unit that receives the impurities separated by the first hopper, compresses the impurities, and separates and discharges moisture and compressed impurities filtered out during the compression process; and a second hopper that receives the moisture collected from the first hopper and secondarily separates moisture and fine impurities smaller than the impurities separated from the first hopper.

[0015] In addition, in the present invention, it is preferable that a sedimentation tank for settling moisture separated from the secondary hopper is further included, and that the moisture separated from the secondary hopper is introduced into the sedimentation tank.

[0016] In addition, in the present invention, the first hopper is composed of a lower case having an open upper surface and a trapezoidal cross-section, and a cover that closes the upper surface of the lower case, and a plurality of screen bars are installed on the upper portion of the side wall of the lower case to separate moisture and impurities from the impurities to be treated, spaced apart from the upper surface of the side wall, and a moisture collection plate is installed upward from the inner lower portion of the side wall, and a moisture accumulation space is formed in the space formed by the moisture collection plate and the front wall and the rear wall of the first hopper, and moisture accumulated in the moisture accumulation space is discharged to the second hopper through a discharge pipe, and impurities sliding on the upper surface of the screen bars are introduced into the screw press through an opening formed at the lower portion.

[0017] Additionally, in the present invention, it is preferable that the cross-section of the screen bar is circular.

[0018] In addition, in the present invention, it is preferable that each end of the screen bars be joined to a portion spaced downward from the upper end of the moisture collection plate.

[0019] In addition, in the present invention, the secondary hopper is preferably formed of a lower case having an open upper surface and a trapezoidal cross-section, and a cover that closes the upper surface of the lower case, and a plurality of secondary screen bars are installed on the upper portion of the side wall of the lower case to receive moisture flowing in from the primary hopper and separate moisture and fine impurities while being spaced apart from the upper surface of the side wall, and a secondary moisture collection plate is installed upward from the inner lower portion of the side wall of the secondary hopper, and a secondary moisture accumulation space is formed in which moisture is accumulated in the space formed by the secondary moisture collection plate and the front wall and the rear wall of the secondary hopper, and the moisture accumulated in the secondary moisture accumulation space is discharged to the outside through a discharge pipe, and the fine impurities sliding on the upper surface of the secondary screen bars are introduced back into the primary hopper.

[0020] In addition, in the present invention, it is preferable that the diameter of the secondary screen bars is smaller than the diameter of the screen bars, and the installation interval of the secondary screen bars is smaller than the installation interval of the screen bars.

[0021] According to the present invention having the above-mentioned problem and solution, the present invention is composed of a primary hopper and a secondary hopper, and the primary hopper primarily separates impurities and moisture, and the secondary hopper receives moisture from the primary hopper and separates fine impurities again, thereby obtaining the effect of being able to cleanly treat impurities without using any chemical coagulant.

[0022] Figure 1 is a perspective view for explaining the overall configuration of the prior art.

[0023] Figure 2 is a plan view of the body of the hopper of Figure 3.

[0024] Figure 3 is a perspective view of a hopper of the prior art.

[0025] Figure 4 is a schematic diagram for explaining the overall configuration of the present invention.

[0026] Figure 5 is a configuration diagram of the primary hopper of the present invention.

[0027] Figure 6 is a cross-sectional view of Figure 5.

[0028] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

[0029] Figure 4 is a schematic diagram for explaining the overall configuration of the present invention.

[0030] The device for treating impurities (1) of the present invention comprises a raw water tank for collecting impurities (10) for collecting and storing impurities to be treated, which contain a large amount of moisture, from a source of impurities such as a pigsty, a primary hopper (30) for receiving impurities to be treated discharged from the raw water tank for collecting impurities (10) by pressurizing the pump (P) and for primarily separating the introduced impurities into impurities and moisture, a screw press unit (50) for receiving impurities separated by the primary hopper (30), compressing the impurities, and separating and discharging moisture filtered out during the compression process and compressed impurities, a motor unit (60) comprising a motor for providing a driving force for rotating a rotation shaft on which a screw is installed in the screw press unit (50) and a gear unit for reducing the rotation speed of the motor, a sedimentation tank (20) for receiving moisture and sedimenting it, and a first hopper (30) for receiving moisture collected from the primary hopper (30) and for precipitating the collected moisture. It is composed of a secondary hopper (40) that separates moisture and fine impurities secondarily, discharges the separated moisture to a sedimentation tank (20), and discharges the separated fine impurities to a raw water tank (10) for collecting impurities.

[0031] At this time, the screw press section (50) has a cylindrical shape, and a case (51) in which a discharge section (52) for discharging contaminants compressed at the terminal to the outside and a moisture discharge pipe (52) for discharging moisture generated during the compression process are installed, and a screw press (70) installed inside the case (51) to compress the introduced contaminants is installed. In addition, a moisture discharge pipe (53) for discharging moisture generated inside the case to a sedimentation tank (20) or the outside is installed on the bottom surface of the case (51).

[0032] Looking at the treatment process of the waste mixed with water and waste collected from pigsty, etc., the waste to be treated is first collected in the waste collection tank (10) and then transferred to the primary hopper (30) by its own weight or by pressurization by a pump (P) as shown in path ①.

[0033] In the first hopper (30), moisture and impurities are separated by screen bars, the separated impurities are transferred to the screw press section (50), and the separated moisture is transferred to the second hopper (40) through paths ② and ③, in which second screen bars having a finer scale than the screen bars of the first hopper (30) are installed.

[0034] Fig. 5 is a configuration diagram of a primary hopper of the present invention, and Fig. 6 is a cross-sectional view of Fig. 5.

[0035] The primary hopper (30) is formed with a lower case (35) having an open upper surface and an opening (37) formed on the lower surface to allow impurities to be fed into the screw press section (50), and a cross-section formed in a trapezoidal shape, and a cover (35') that closes the upper surface of the lower case (35). A pipe (31) that is connected to a raw material tank (10) for collecting impurities and into which impurities to be treated are introduced passes through the cover (35'), and branch pipes (32), (32') branch from the end of the pipe (31), and the branch pipes (32), (32') are installed toward both side walls (351), (352) of the lower case (35).

[0036] A vertical pipe (33) is installed vertically at the end of the branch pipe (32), and a vertical pipe (33') is installed vertically at the end of the branch pipe (32'). In addition, injection holes (34), (34') are formed in the vertical pipes (33), (33') so that the width becomes narrower as they move forward so that high pressure can be injected toward the left and right side walls (351), (352) of the lower case (35).

[0037] Additionally, screen bars (36), (36') are installed on the upper surface of the side walls (351), (352) of the lower case (35) so as to be spaced apart from the upper surface of the side walls. The screen bars (36), (36') are preferably formed with a circular cross-section to facilitate moisture discharge, and are uniformly installed between the front and rear surfaces of the lower case (35), that is, on the upper portion of the side surface, so that only moisture from the impurities to be treated discharged from the injection ports (34), (34') to the upper surfaces of the screen bars (36), (36') passes through the screen bars (36), (36') and slides down the side wall surfaces (351), (352) of the lower case (35) and is collected in the lower collection space (39), (39'). Among the impurities to be treated discharged from the injection ports (34), (34') to the upper surfaces of the screen bars (36), (36'), the impurities from which moisture has been filtered slide along the upper surfaces of the screen bars (36), (36') and pass through the lower opening (37) to be fed into the screw press unit (50).

[0038] In addition, moisture collection plates (361), (361') are installed upward from the inner bottom of the side walls (351), (352) of the lower case (35), and the end portions of each screen bar (36) are joined to a portion spaced downward from the upper portion of the moisture collection plates (361), (361').

[0039] In this way, the moisture collection plates (361), (361') are installed upward from the inner lower side of the side wall surfaces (351), (352), so that the space formed by the moisture collection plates (361), (361'), the side wall surfaces (351), (352), and the front and rear surfaces forms a moisture collection space (39), (39') in which moisture flowing down the side wall surfaces (351), (352) is collected, and moisture flowing down the side wall surfaces (351), (351') through the screen bar (36) is accumulated in the moisture collection space (39), (39'), and primary discharge pipes (38), (39) are installed in the moisture accumulation space (39), (39') through the front wall of the lower case, and moisture accumulated in the moisture accumulation space (39), (39') is discharged through the primary discharge pipes (38), (39).

[0040] In addition, the screen bar (36) is joined below the end of the moisture collection plate (361), (361'), and the end of the moisture collection plate (361), (361') forms a protrusion (362), (362') that protrudes from the screen bar (36), and the moisture-discharged impurities are caught by the protrusion (362), (362') so that the moisture remains for a longer period of time, thereby allowing the moisture to be discharged better.

[0041] In this way, the impurities from which moisture has been discharged pass through the opening (37) and fall into the screw press section (50) installed directly below, and the impurities, with even the remaining moisture contained in the impurities discharged from the screw press section (50), are discharged to the outside of the case (51) through the discharge section (52).

[0042] In addition, moisture discharged from the screw press section (50) is introduced into the sedimentation tank (20) through a discharge pipe (53) with a screen (not shown) installed, as shown in path ⑦.

[0043] In addition, the primary discharge pipes (38) and (39) are combined, and the combined discharge pipe (41) penetrates the cover of the secondary hopper (40) to discharge moisture containing fine impurities into the interior of the secondary hopper (40).

[0044] The shape and structure of the secondary hopper (40) are the same as those of the primary hopper (30), but the secondary screen bars installed on the upper sides of both sides of the secondary hopper (40) are preferably installed with a smaller diameter than the thickness of the screen bars (36) and (36') of the primary hopper (30) in order to filter out fine impurities.

[0045] In addition, it is desirable that the installation interval of the secondary screen bars installed on the upper sides of both sides of the secondary hopper (40) be smaller and denser than the interval of the screen bars (36), (36') of the primary hopper (30).

[0046] Secondary screen bars are installed on the upper side of the side walls of the lower case of the secondary hopper (40), and moisture collection plates are installed upward on the lower inner side of the side walls, so that a moisture collection space is formed in the space formed by the lower side walls, the moisture collection plates, and the front and rear sides.

[0047] In addition, a discharge pipe (42) is connected to the opening formed at the bottom of the secondary hopper (40), and fine impurities that have come down along the upper surface of the secondary screen bars of the secondary hopper (40) through the discharge pipe (42) are discharged and transported to the impurity collection tank (10) as shown in path ⑥ by their own weight.

[0048] In addition, the moisture collected in the moisture collection space is discharged through a discharge pipe installed in the moisture collection space by penetrating the front and rear walls of the secondary hopper (40) and is transferred to the sedimentation tank (20) as shown in paths ④ and ⑤.

[0049] The screw press section (50) is composed of a case (51) formed of a cylindrical tube, a rotating shaft (53) on which a screw is installed that penetrates the center of the case (51) and rotates by a motor section (60) to transport the impurities flowing in from the primary hopper (30) to one end, a bar cage (70) on which circular bars are installed that compress the impurities transported by the screws and discharge moisture, a cone section (71) installed at an end of the bar cage (70) and is pushed outward by the compressed impurities to discharge the impurities, and a spring (73) for applying elasticity to the cone section (71). The detailed structure is a known conventional structure, so a detailed description thereof will be omitted. The screw press section (50) can also be used by applying the same structure as the registered patents No. 10-2494888 and No. 10-2266589 applied for and registered by the applicant of the present application.

[0050] In addition, the water collected in the sedimentation tank (20) is precipitated to form upper layer water, middle layer water, and lower layer water, and the upper layer water is discharged to the outside, but the middle layer water and lower layer water or only the lower layer water is recovered in the impurity collection tank (10) as in path c and goes through the recycling process again.

Claims

1. In a waste treatment device that separates and discharges moisture and waste from the waste of a moisture-containing treatment target: A primary hopper that receives the above moisture-containing impurities and primarily separates them into impurities and moisture; A screw press unit that receives the impurities separated by the first hopper, compresses the impurities, and separates and discharges the moisture and compressed impurities filtered out during the compression process; A contaminant treatment device characterized by including a secondary hopper that receives moisture collected from the primary hopper and secondarily separates moisture and fine contaminants smaller than the contaminants separated from the primary hopper.

2. In claim 1, a sedimentation tank for sedimenting the water separated from the secondary hopper is further included. A device for treating impurities, characterized in that moisture separated from the secondary hopper flows into the sedimentation tank.

3. In claim 1, the primary hopper comprises a lower case having an open upper surface and a trapezoidal cross-section, and a cover that closes the upper surface of the lower case, a plurality of screen bars that separate moisture and impurities from the impurities to be treated are installed on the upper portion of the side wall of the lower case and spaced apart from the upper surface of the side wall, a moisture collection plate is installed upward from the inner lower portion of the side wall, and a moisture accumulation space is formed in the space formed by the moisture collection plate and the front wall and the rear wall of the primary hopper, and the moisture accumulated in the moisture accumulation space is discharged to the secondary hopper through a discharge pipe, and the impurities that slide on the upper surface of the screen bars are introduced into the screw press through an opening formed at the lower portion.

4. A device for treating contaminants according to claim 3, characterized in that the cross-section of the screen bar is circular.

5. A device for treating impurities, characterized in that, in claim 3, each end of the screen bars is joined to a portion spaced downward from the upper end of the moisture collection plate.

6. In claim 3, the secondary hopper is composed of a lower case having an open upper surface and a trapezoidal cross-section, and a cover that closes the upper surface of the lower case, and a plurality of secondary screen bars are installed on the upper portion of the side wall of the lower case to receive moisture flowing in from the primary hopper and separate moisture and fine impurities while being spaced apart from the upper surface of the side wall, and a secondary moisture collection plate is installed upward from the inner lower portion of the side wall of the secondary hopper, and a secondary moisture accumulation space is formed in which moisture is accumulated in the space formed by the secondary moisture collection plate and the front wall and the rear wall of the secondary hopper, and the moisture accumulated in the secondary moisture accumulation space is discharged to the outside through a discharge pipe, and the fine impurities that slide on the upper surface of the secondary screen bars are introduced back into the primary hopper.

7. A device for treating impurities, characterized in that in claim 6, the diameter of the secondary screen bars is smaller than the diameter of the screen bars, and the installation interval of the secondary screen bars is smaller than the installation interval of the screen bars.

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