A solid waste separation device for domestic sewage

Abstract

This utility model relates to the field of wastewater treatment technology, specifically to a solid waste separation device for domestic sewage. It includes a filter tank, within which an upper chamber and a lower chamber are formed by an inclined filter plate. A solid discharge outlet and a water inlet pipe, connected to the upper chamber, are located on the side of the filter tank. The water inlet pipe is positioned above the upper end of the filter plate, and the solid discharge outlet is aligned with the upper side of the lower end of the filter plate. A liquid discharge outlet, connected to the lower chamber, is located at the bottom of the filter tank. Filter holes penetrating both the upper and lower sides are provided on the filter plate near the solid discharge outlet. A cleaning plate is movably mounted on the lower side of the filter plate, and cleaning inserts aligned with the filter holes are located on the upper side of the cleaning plate. This device solves the problem of solid-liquid separation in domestic sewage.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a solid waste separation device for domestic sewage. Background Technology

[0002] In rural areas, the treatment and utilization of domestic sewage has always been a critical issue that urgently needs to be addressed. With the development of the rural economy and the improvement of residents' living standards, the discharge of rural domestic sewage is constantly increasing. However, the current situation regarding rural domestic sewage treatment is far from satisfactory; large amounts of sewage are discharged directly without effective treatment, wasting a significant amount of usable water resources and nutrients.

[0003] Rural domestic sewage contains abundant nutrients such as nitrogen and phosphorus, as well as some biodegradable organic matter. If it can be used properly, it can not only reduce the amount of chemical fertilizers used and lower agricultural production costs, but also improve soil fertility and promote crop growth.

[0004] Based on this, our company combines greenhouse cultivation technology with surrounding domestic sewage pipelines. We treat the surrounding domestic sewage and use it as fertilizer to irrigate crops in the greenhouse. However, the mixture of solid and liquid in the sewage is not only unfavorable for irrigation, but also pollutes the soil surface due to the solids, affecting crop growth. Therefore, our company has developed a domestic sewage solid waste separation device to effectively separate the solids and liquids in the sewage. It can make full use of the various nutrients in the liquid to irrigate plants, while avoiding direct soil pollution from the solids. At the same time, the solid waste can also be used as raw material for composting. After the fertilizer is fully released, it can be used as solid fertilizer. Utility Model Content

[0005] The purpose of this invention is to provide a solid waste separation device for domestic sewage, which solves the problem of separating solids and liquids in domestic sewage.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A solid waste separation device for domestic sewage includes a filter tank. The filter tank is divided into an upper chamber and a lower chamber by an inclined filter plate. The side of the filter tank is provided with a solid discharge outlet and a water inlet pipe that are connected to the upper chamber. The water inlet pipe is positioned above the upper end of the filter plate. The solid discharge outlet is aligned with the upper side of the lower end of the filter plate. The bottom of the filter tank is provided with a liquid discharge outlet that is connected to the lower chamber. The filter plate is provided with filter holes that penetrate the upper and lower sides near the solid discharge outlet. A cleaning plate is movably provided on the lower side of the filter plate. A cleaning insert aligned with the filter holes is provided on the upper side of the cleaning plate.

[0008] A further technical solution is that the lower side of the cleaning plate facing the solid discharge outlet is rotatably connected to the cavity wall of the lower chamber via a hinge. A push plate is vertically arranged on the lower side of the cleaning plate, and a drive bar plate is vertically arranged on the side of the push plate facing the solid discharge outlet. A drive bar hole is vertically arranged on the drive bar plate, passing through both sides. A drive shaft is movably arranged in the drive bar hole. A telescopic rod is arranged below the solid discharge outlet of the filter tank. The output shaft of the telescopic rod passes through the lower chamber and is connected to the drive shaft.

[0009] A further technical solution is to have a discharge pipe connected to the side of the filter tank at the solid discharge port, and a sealing door installed at the opening of the discharge pipe.

[0010] A further technical solution is to have several filter holes and cleaning inserts, with the filter holes having a rectangular cross-section and the cleaning inserts having a rhomboid cross-section.

[0011] A further technical solution is to have a liquid discharge pipe connected to the liquid outlet on the lower side of the filter tank, and a valve for controlling its opening and closing on the liquid discharge pipe.

[0012] A further technical solution also includes a water collection tank, the bottom of which has an edge that is concave downwards towards the center. The end of the inlet pipe away from the filter tank is placed inside the water collection tank and close to the center of the bottom of the water collection tank. A water pump is installed on the inlet pipe. A sewage pipe is installed on one side of the water collection tank. A pulverizing pipe is installed at the end of the sewage pipe that is placed at one end of the water collection tank. A pulverizing motor is installed on the outer wall of the pulverizing pipe. The output shaft of the pulverizing motor passes through the pulverizing pipe and is connected to several pulverizing blades.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. With the inclined filter plate, when domestic sewage enters the upper chamber from the inlet pipe, it will flow to the upper side of the filter plate and flow downward along the filter plate. When the sewage flows to the filter hole, the liquid is discharged downward from the filter hole, and the solid remains on the upper side of the filter plate, thus achieving solid-liquid separation; 2. By setting a solid discharge outlet, the solid on the upper side of the filter plate can be discharged in time, avoiding excessive accumulation of solid on the filter plate and affecting the filtration effect; 3. During the filtration process, some solids of similar size to the filter hole are easy to get stuck in the filter hole, causing the filter hole to fail to filter normally. Therefore, by setting a cleaning plate and cleaning insert, when it is necessary to clean the filter hole, the cleaning plate drives the cleaning insert to move upward, and drives the cleaning insert to move up and down in the filter hole, thereby clearing the filter hole and allowing the solid blocking the filter hole to pass through the filter hole after being pushed open or broken. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a domestic sewage solid waste separation device according to the present invention.

[0015] Figure 2This is a schematic diagram of the side cross-section of the filter pipe of a domestic sewage solid waste separation device according to the present invention.

[0016] Figure 3 for Figure 2 A magnified view of the area marked A in the middle.

[0017] Figure 4 for Figure 2 Top view at point A in the middle.

[0018] Icons: 1-Filter tank, 2-Filter plate, 3-Upper chamber, 4-Lower chamber, 5-Solid outlet, 6-Water inlet pipe, 7-Liquid outlet, 8-Filter hole, 9-Cleaning plate, 10-Cleaning insert, 11-Hinge, 12-Push plate, 13-Drive bar plate, 14-Drive bar hole, 15-Drive shaft, 16-Telescopic rod, 17-Discharge pipe, 18-Sealing door, 19-Liquid discharge pipe, 20-Valve, 21-Collection tank, 22-Water pump, 23-Sewage pipe, 24-Grinding pipe, 25-Grinding motor. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] Figures 1 to 4 The following is an embodiment of the present invention.

[0021] Example 1:

[0022] A solid waste separation device for domestic sewage includes a filter tank 1. The filter tank 1 is divided into an upper chamber 3 and a lower chamber 4 by an inclined filter plate 2. A solid discharge outlet 5 and a water inlet pipe 6, connected to the upper chamber 3, are located on the side of the filter tank 1. The water inlet pipe 6 is positioned above the upper end of the filter plate 2. The solid discharge outlet 5 is aligned with the upper side of the lower end of the filter plate 2. A liquid discharge outlet 7, connected to the lower chamber 4, is located at the bottom of the filter tank 1. Filter holes 8, penetrating both the upper and lower sides, are provided on the filter plate 2 near the solid discharge outlet 5. A cleaning plate 9 is movably mounted on the lower side of the filter plate 2, and cleaning inserts 10 aligned with the filter holes 8 are located on the upper side of the cleaning plate 9. Through the inclined filter plate 2, when domestic sewage enters the upper chamber 3 from the water inlet pipe 6, it flows to the upper side of the filter plate 2 and downwards along the filter plate 2. When the sewage reaches the filter holes 8, the liquid is discharged downwards from the filter holes 8, while the solids remain on the upper side of the filter plate 2, achieving solid-liquid separation. By setting up a solid discharge port 5, solids on the upper side of the filter plate 2 can be discharged in a timely manner, preventing excessive accumulation of solids on the filter plate 2 and affecting the filtration effect. During the filtration process, some solids of similar size to the filter holes 8 can easily get stuck in the filter holes 8, causing the filter holes 8 to fail to filter normally. Therefore, by setting up a cleaning plate 9 and a cleaning insert 10, when it is necessary to clean the filter holes 8, the cleaning plate 9 drives the cleaning insert 10 to move upwards, causing the cleaning insert 10 to move up and down within the filter holes 8, thereby clearing the filter holes 8 and pushing open or breaking up the solids blocking the filter holes 8 so that they can pass through the filter holes 8. The difference between domestic sewage and industrial wastewater is that domestic sewage is mostly sewage generated during daily life, containing some vegetable leaf fragments, vegetable stems, vegetable peels, broken rice, etc., which can be treated and used as fertilizer.

[0023] The cleaning plate 9 is rotatably connected to the wall of the lower chamber 4 via a hinge 11 on its lower side facing the solid discharge outlet 5. A push plate 12 is vertically arranged on the lower side of the cleaning plate 9. A drive bar 13 is vertically arranged on the side of the push plate 12 facing the solid discharge outlet 5. A drive bar hole 14 is vertically arranged on the drive bar 13, passing through both sides. A drive shaft 15 is movably arranged within the drive bar hole 14. A telescopic rod 16 is arranged below the solid discharge outlet 5 in the filter tank 1. The output shaft of the telescopic rod 16 passes through the lower chamber 4 and is connected to the drive shaft 15. The telescopic rod 16 is electrically operated and periodically extends and retracts via a control system. When the telescopic rod 16 extends and retracts, it drives the drive shaft 15 along the […]. Figure 2 or Figure 3The left and right movement shown means that when the drive shaft 15 moves left and right, for example, to the right, it will push the lower end of the drive bar 13 to move to the right. The upper end of the drive bar 13 is connected to the lower side of the cleaning plate 9. The right end of the cleaning plate 9 is connected to the cavity wall of the lower chamber 4 through the hinge 11. When the lower end of the drive bar 13 moves, the drive bar 13 and the cleaning plate 9 will make a circular motion around the hinge 11. Therefore, through the cooperation of the drive bar hole 14 and the drive shaft 15, the drive bar 13 can be driven to move by the drive shaft 15 being in different positions in the drive bar hole 14 when the drive bar 13 moves.

[0024] A discharge pipe 17 is connected to the side of the filter tank 1 at the solid discharge port 5, and a sealing door 18 is provided at the opening of the discharge pipe 17. By setting the discharge pipe 17 and the sealing door 18, the solid discharge port 5 can be sealed, achieving a good sealing effect. Simultaneously, the sealing door 18 can be detachably connected to the opening of the discharge pipe 17, allowing the solids in the upper chamber 3 to be cleaned by opening the sealing door 18 when cleaning is required. The sealing door 18 can be connected to the opening of the discharge pipe 17 using a hinge 11 with a locking element, or it can be fixed to the edge of the end of the discharge pipe 17 using bolts. Rubber sealing rings are provided at the fixing points to enhance the sealing effect.

[0025] Several filter holes 8 and cleaning inserts 10 are provided. The filter holes 8 have a rectangular cross-section, and the cleaning inserts 10 have a rhomboid cross-section. Since the cleaning plate 9 moves, it causes the cleaning inserts 10 to insert into the filter holes 8 at an angle. Therefore, to avoid collisions between the cleaning inserts 10 and the edges of the filter holes 8, the filter holes 8 are rectangular strips, allowing the cleaning inserts 10 sufficient room to move. The rhomboid cross-section of the cleaning inserts 10 effectively breaks up solids blocking the filter holes 8, and the upper end of the cleaning inserts 10 can be designed as a sharp point.

[0026] A liquid discharge pipe 19, connected to a liquid outlet 7, is provided on the lower side of the filter tank 1. A valve 20 is installed on the liquid discharge pipe 19 to control its opening and closing. By providing the liquid discharge pipe 19, the liquid filtered from the filter tank 1 can be collected for subsequent use. After treatment, it can be used to irrigate crops in the greenhouse. The valve 20 allows control over the timing of liquid discharge.

[0027] It also includes a water collection tank 21, the bottom of which has an edge that is concave downwards towards the center. The end of the water inlet pipe 6 away from the filter tank 1 is placed inside the water collection tank 21 and close to the center of the bottom of the water collection tank 21. A water pump 22 is installed on the water inlet pipe 6. A sewage pipe 23 is installed on one side of the water collection tank 21. A pulverizing pipe 24 is installed at the end of the sewage pipe 23 that is placed at one end of the water collection tank 21. A pulverizing motor 25 is installed on the outer wall of the pulverizing pipe 24. The output shaft of the pulverizing motor 25 passes through the pulverizing pipe 24 and is connected to several pulverizing blades. By setting up a collection tank 21, the surrounding domestic sewage pipes 23 can be gathered together, and domestic sewage can be collected into the collection tank 21. At the end of the sewage pipe 23, a crushing pipe 24, a crushing motor 25, and crushing blades can be installed to crush some large solids in the sewage. This can prevent large solids from clogging the water pump 22 when it is pumping. At the same time, the fine solids that are inevitably produced by crushing can be mixed into the liquid through the filter holes 8, making the liquid more nutrient-rich.

[0028] Although the present invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications can be made to the components and / or layout of the subject matter combination within the scope of the disclosure, drawings, and claims. Besides variations and modifications to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A domestic sewage solid waste separation device, characterized in that, The filter includes a filter tank (1), which is divided into an upper chamber (3) and a lower chamber (4) by an inclined filter plate (2). The side of the filter tank (1) is provided with a solid outlet (5) and a water inlet pipe (6) connected to the upper chamber (3). The water inlet pipe (6) is positioned above the upper end of the filter plate (2). The solid outlet (5) is aligned with the upper side of the lower end of the filter plate (2). The bottom of the filter tank (1) is provided with a liquid outlet (7) connected to the lower chamber (4). The filter plate (2) is provided with a filter hole (8) that runs through both the upper and lower sides near the solid outlet (5). A cleaning plate (9) is movably provided on the lower side of the filter plate (2). A cleaning insert (10) aligned with the filter hole (8) is provided on the upper side of the cleaning plate (9).

2. The domestic sewage solid waste separation device according to claim 1, characterized in that: The cleaning plate (9) is rotatably connected to the wall of the lower chamber (4) via a hinge (11) on the lower side facing the solid discharge port (5). A push plate (12) is vertically arranged on the lower side of the cleaning plate (9). A drive bar plate (13) is vertically arranged on the side of the push plate (12) facing the solid discharge port (5). A drive bar hole (14) is vertically arranged on the drive bar plate (13) that passes through both sides. A drive shaft (15) is movably arranged in the drive bar hole (14). A telescopic rod (16) is arranged below the solid discharge port (5) of the filter tank (1). The output shaft of the telescopic rod (16) passes into the lower chamber (4) and is connected to the drive shaft (15).

3. The domestic sewage solid waste separation device according to claim 2, characterized in that: The side of the filter tank (1) is connected to a discharge pipe (17) at the solid discharge port (5), and a sealing door (18) is provided at the opening of the discharge pipe (17).

4. The domestic sewage solid waste separation device according to claim 2, characterized in that: The filter hole (8) and the cleaning insert (10) are provided in a plurality of pairs. The cross-section of the filter hole (8) is rectangular and the cross-section of the cleaning insert (10) is rhomboid.

5. A domestic sewage solid waste separation device according to claim 1, characterized in that: The filter tank (1) is provided with a liquid discharge pipe (19) connected to the liquid discharge port (7) on its lower side, and a valve (20) is provided on the liquid discharge pipe (19) for controlling its opening and closing.

6. The domestic sewage solid waste separation device according to claim 1, characterized in that: It also includes a water collection tank (21), the bottom of which has an edge that is concave downward toward the center. The end of the water inlet pipe (6) away from the filter tank (1) is placed inside the water collection tank (21) and close to the center of the bottom of the water collection tank (21). A water pump (22) is installed on the water inlet pipe (6). A sewage pipe (23) is installed on one side of the water collection tank (21). A pulverizing pipe (24) is installed at the end of the sewage pipe (23) placed at one end of the water collection tank (21). A pulverizing motor (25) is installed on the outer wall of the pulverizing pipe (24). The output shaft of the pulverizing motor (25) passes through the pulverizing pipe (24) and is connected to several pulverizing blades.

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