KR200304494Y1 - Sandless - Google Patents

Abstract

The present invention relates to a sedimentary sand separator, which is a device that effectively separates heavy sediment, such as sand, which is an obstacle during wastewater treatment process, from process wastewater.

The inlet which introduces the process wastewater into the sedimentation tank by the inlet nozzle, and the sand included in the inflowed wastewater are precipitated by the deflector, which is a vortex preventive plate under the inlet nozzle, and the sedimentation tank. The ribbon screw conveyor unit for transporting and discharging sediment such as sand settled in the outer end of the lower part by the submerged ribbon screw, the driving unit for driving the screw conveyor, and the upper part wastewater separated from the sediment are located in the upper part of the sedimentation tank. Consists of a discharge pipe that discharges to the outside through the discharge pipe, it is possible to quickly separate heavy sediment such as sand contained in the process wastewater, and ribbon type screw that continuously transfers the sediment such as the separated sand to the outside of the settling tank Conveyor provides a sedimentation sand separator that can discharge sediment with low moisture content.

Description

Sand Sand Sand Separator {Sandless}

This paper is about sedimentation sand separator and consists of sedimentation tank which can be installed in any place and specially designed ribbon screw conveyor, and sediment with heavy gravity such as sand contained in waste water is sedimented in sedimentation tank and ribbon A sand screw separator is provided for separating sand and the like by continuously discharging sediment outwardly by a type screw conveyor.

The process water discharged during the selection of waste support fee for reuse of waste paper at the paper mill includes heavy sediments such as sand, glass pieces and metal pieces. If it accumulates over a long period of time and accumulates for a long time, it may cause an obstacle in process operation. Therefore, sediment such as sand in the discharge process water must be separated and removed from the process to stabilize the waste water treatment process. The sedimentation sand separator is a major device in the paper mill because it can be used as reused water.

In addition, since sediment such as sand is contained in the raw water of wastewater flowing from sewage, sewage treatment plant, industrial wastewater treatment, etc. by the surrounding environment, it is effective in wastewater treatment operation management by separating and removing sediment such as sand in influent wastewater. During construction work, the sedimentary sand separator plays an important role as the groundwater containing soil, sand, etc. is discharged to sewage pipes.

The conventional method of separating sediments with heavy gravity, such as sand, from process wastewater and wastewater treatment plant in most paper mills, forms sedimentation sites, precipitates sand contained in process wastewater, and drains wastewater from the upper layer to drainage. It is discharged into the wastewater treatment plant, and sediment such as sand deposited on the bottom is collected and separated by equipment.There are problems in economics because it takes a lot of site and cost according to the composition of the settlement and high operating cost. In addition, since the separation work of the sand is performed in the settlement, the sedimentation sand flows out into the drainage with the wastewater of the upper layer, and thus the separation is difficult.There is a odor when collecting the sediment such as the sand deposited in the settlement. There is a problem.

In addition, the shaftless screw conveyor without a rotating shaft applied to the existing sand separator (Registration Utility Model No. 20-0201939) has a structure in which the upper support part and the lower part U-shaped outer cylinder on the driving side serve as the lower support part. In order to prevent direct friction of the passage, a number of wear rail bars are attached in the longitudinal direction of the inner wall of the outer cylinder, or semi-circular plates made of synthetic resin are mounted on the inner wall of the outer cylinder to prevent direct friction with the outer cylinder. As the center of gravity is located at the bottom, the rail bar mounted on the inner wall of the outer cylinder by friction with sand, the synthetic resin needs to be replaced when it is worn, and the replacement work is not smooth. A shaftless screw conveyor without a rotating shaft provides strength suitable for the outer diameter and length of the screw. The thickness and width of the screw blade is high in production cost due to the structure, the resulting product price and problems with the economic aspects have high operating costs due to replacement in order to.

The purpose of the present invention is to discharge the sediment from the sedimentation tank, which has a specific gravity such as sand contained in the waste water, by the screw conveyor of the special ribbon type screw. It is to provide a sedimentation sand separator that completely separates the included sand lamp.

Separation work of heavy sediment such as sand, glass piece, and metal piece among the reject discharged with the process water in the process of raw material selection at the paper mill must proceed continuously, completely settle in the sedimentation tank, flow pattern of the settling area It is a structure to discharge the sediment sand with low moisture content by the ribbon type screw conveyor which transfers the sediment to the outside without disturbing the product.

1 is an operation of the sedimentation sand separator,

Figure 2 is a front view of the sedimentation sand separator,

3 is a side view of the sedimentation sand separator,

4 is a plan view of the sedimentation sand separator,

5 is a main detailed view of the sedimentation sand separator.

-Selection of symbols for details in the drawings;

1. Inlet nozzle 2. Wastewater inflow piping

3. Sedimentation Tank 4. Ribbon Hung Screw Conveyor

4a. Ribbon screw 4b. Screw guide plate

4c. Screw shaft 4d. Shaft lower support

5. Deflecta 6. U-shaped outer cylinder

7. Outlet port 8. Driving part

9. Discharge pipe part 10. Purification discharge pipe

11. Influent wastewater 12. Movement route of wastewater

13. Exhaust sand 14. Caba

15. Special Instructions

Inlet nozzle connected to waste water inlet pipe, deflector which prevents vortex of incoming wastewater and spreads to sedimentation area, sedimentation tank to settle heavy sediment such as sand, and ribbon screw to transfer and discharge sediment out It provides a settling sand separator consisting of a conveyor unit, a driving unit for operating a screw conveyor, and a discharge pipe unit for discharging the separated wastewater of the upper layer to the outside along the discharge pipe in the upper part of the settling tank.

In order to achieve the above object will be described in detail as an example of the operation of the drawings and the subject innovation.

The inlet nozzle 1 is mounted on the upper surface of the sedimentation tank 3 and connected to the wastewater inlet pipe 2 so that the inflow wastewater 11 flows into the sedimentation zone of the sedimentation tank 3 and is maintained. In order to block the inflow of wastewater during maintenance and emergency, a manual valve is attached to the inlet nozzle (1).

The sedimentation tank (3) is introduced by the deflector (5) under the inlet nozzle (1) inside the sedimentation tank (3) with a capacity that has sufficient residence time to minimize the generation of influent wastewater and to settle sand. It is a structure that collects the sediments such as sand and spreads to the sedimentation area of the lower part of the sedimentation tank while completely preventing the vortices of waste water. For cleaning, there is a cleaning tool (15) at the bottom of the tank, and a manual valve is mounted.

The discharge sand 13 is discharged through the outlet 7 by the rotation of the ribbon-hung screw conveyor 4 for transporting and discharging the sand settled out along the longitudinal direction to the U-shaped outer cylinder 6 at the bottom of the settling tank 3. Discharge. The separated upper wastewater flows from the upper part of the settling tank to the discharge pipe by a constant level control device and is discharged from the purification discharge pipe 10 to the outside of the settling tank 3, and the suspended matter in the upper wastewater is discharged through the discharge pipe 9 along the discharge channel. It is composed of a discharge structure.

In particular, the ribbon screw conveyor 4 is longitudinally in the lower U-shaped outer cylinder 6 at a 25 ° inclination angle in the water of the sedimentation tank 3, and the ribbon-type screw 4a leaves only the outer diameter of the required screw blades. In the hollow form that eliminated the middle part, the screw blades on the screw shaft (4c) is supported by a flat bar, the hollow ribbon type screw (4a) serves to reduce the moisture content of the sand discharged during the transfer process, In order to prevent direct friction with the U-shaped outer cylinder 6, the lower support portion 4d is attached to the upper end support portion of the screw shaft 4c and the screw shaft 4c at the lower end of the sedimentation tank, and the U Heng outer cylinder 6 is mounted. It is configured to prevent the wear of the outer cylinder (6) by maintaining a gap between and apply a ribbon type screw conveyor with a rotating shaft to minimize the mechanical load.

The drive unit 8 is mounted on the upper end of the ribbon screw conveyor, and drives the ribbon screw conveyor 4 by the geared motor and chain transmission to transfer sand.

As an example of carrying out the operation of the present invention, the inflow process wastewater 12 containing the sediment, such as sand in the paper mill as the main raw material is introduced into the settling tank (3) through the inlet nozzle (1), the inlet nozzle It sinks to the bottom of the settling zone of the settling tank (3), spreading by the deflector (5) under (1).

The sand lamp settled at the lower end of the sedimentation tank 3 flows into the U-shaped outer cylinder 6 and continuously discharges the sand lamp to the outlet 7 by screw rotation of the ribbon screw conveyor 4. Waste water flows from the upper part of the sedimentation tank to the discharge pipe by a constant water level control device and is discharged from the purification discharge pipe 10 to the outside of the sedimentation tank 3 to be used in the process as reused water. (9) is discharged to the outside.

The sedimentation sand separator described in the above embodiment precipitates heavy sediment such as sand contained in the process wastewater in the sedimentation tank, and the sedimented sediment is transported and separated by applying a ribbon-type screw conveyor, so sand separation is continuously performed. Proceeds.

The sedimentary sand separator according to this paper is composed of sedimentation tank and ribbon screw conveyor, which can be installed in any place such as paper mill, sewage, wastewater treatment plant, etc. Efficient separation involves sinking sand, glass pieces, and metal pieces contained in the wastewater by deflectors to prevent vortices, sinking to the settling zone in the sedimentation tank. The ribbon screw conveyor will discharge sand with low moisture content from the inside.

In particular, ribbon screw conveyor, which is the main part of the sand sand separator, is easier to manage and operate compared to the shaftless screw conveyor that is used in the past, and it is economical because the product price and operation cost are very low, and the process of selecting raw materials in the paper mill using waste paper. Process water reuse facility that separates sand from process waste water discarded by sediment from sand and reuses the waste water purified by the water level control device in the process, and the floats are discharged to the outside of the settling tank through the discharge pipe. It is a very efficient device and will greatly contribute to the operation management of the wastewater treatment process.

Claims (2)

In the separator for separating heavy sediment, such as sand contained in waste water, Sediment, such as sand, is deposited by the inlet nozzle (1) connected to the wastewater inlet pipe (2) and the deflector (5) to prevent vortex inside the sedimentation tank (3) under the inlet nozzle (1). In the V-type sedimentation tank (3), the ribbon-shaped screw conveyor (4) in the longitudinal direction inside the U-shaped outer cylinder (6) in which the sediment is collected at the lower end at a 25 ° inclination inside the sedimentation tank (3) is a driving part (8). The ribbon screw is rotated by the chain motor to the motor and the reducer to transfer the precipitated sand to the discharge port (7), and the separated upper wastewater is discharged to the discharge pipe by a constant level control device on the upper part of the precipitation tank (3). Flowing and discharged to the outside of the sedimentation tank (3) from the purification discharge pipe (10), sedimentary sand separator characterized in that the structure is configured to discharge through the discharge pipe (9) along the discharge water passage. In the ribbon type screw conveyor (4) according to claim 1, The ribbon type screw conveyor (4) is in the longitudinal direction in the lower U-shaped outer cylinder (6) at a 25 ° inclination angle at the bottom of the submerged tank (3) of the submerged tank (3), the ribbon type screw (4a) leaving only the outer diameter of the required screw blades Hollow type with no intermediate part, partly supported by the ribbon-shaped screw 4a blade and flat plate on the screw shaft 4c, and horizontally flat on the inner diameter of the blade-shaped screw 4a blade for optimum transport capacity. The guide plate 4b is welded in the lengthwise direction of the ribbon screw 4a to serve to transport sand, which is precipitated from the sedimentation tank 3, on the guide plate 4b. The screw 4a serves to reduce the moisture content of the sand discharged while the water transported together with the discharge sand flows back to the middle part of the screw blade in the process of transferring the precipitated sand, and the top of the driving side of the screw shaft 4c. Support A ribbon characterized in that the lower support portion (4d) is attached to the screw shaft of the lower end of the sedimentation tank (3) to maintain a gap with the U Heng outer cylinder (6) to prevent wear of the U-shaped outer cylinder (6). Type screw conveyor.