Ecological treatment device for domestic sewage

Abstract

This application relates to the technical field of ecological treatment devices for domestic sewage, and discloses such devices, including a pretreatment tank, a biological reactor, and a collection tank. This ecological treatment device for domestic sewage, by using a dual-shaft motor, operates when sludge needs to be cleaned from the bottom of the pretreatment tank. This motor causes the transmission rod and the first bevel gear to rotate. Through the meshing of the first and second bevel gears, the rotating shaft and the threaded rod rotate. The movable block limits the movement of the fixed cylinder within the sliding box, thereby moving the scraper. The scraper removes sludge from the surface of the first inclined block. The fixed rod and connecting groove limit the rotational freedom of the scraper, ensuring vertical vertical movement. A drain valve discharges the scraped sludge.

Description

Technical Field

[0001] This application relates to the field of wastewater treatment technology, specifically to an ecological treatment device for domestic wastewater. Background Technology

[0002] Current ecological wastewater treatment technologies primarily utilize the food chain to adsorb, trap, store, and transform pollutants, and are widely applied to the treatment of pollution sources such as garbage, domestic sewage, and urban rainwater. Common ecological treatment methods include constructed wetlands, planting highly absorbent aquatic plants, introducing highly efficient decomposing microorganisms, and utilizing natural ponds. These technologies can effectively remove harmful substances such as phosphorus and nitrogen from wastewater, but they still suffer from low efficiency and frequent human intervention when treating solid pollutants such as silt. Ecological treatment technologies are currently unable to effectively address highly challenging pollution sources such as soil pesticide residues and chemical contamination.

[0003] Existing biological wastewater treatment systems typically employ a multi-stage treatment tank series configuration, including a pretreatment tank, a biological reactor, and a collection tank. The pretreatment tank uses physical sedimentation to initially separate large particles of silt; the biological reactor degrades organic matter through microorganisms and aquatic plants; and the collection tank stores the treated water. However, the main drawback of existing biological wastewater treatment tanks is incomplete silt separation, allowing silt to easily enter the collection tank with the wastewater. Over time, this accumulation affects drainage efficiency, and manual silt removal is not only labor-intensive but also poses safety hazards and low efficiency. To address these issues, an ecological wastewater treatment device is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides an ecological treatment device for domestic sewage, which has advantages such as cleaning and sludge collection, and solves the problems of incomplete sludge separation, manual sludge cleaning which is not only labor-intensive, but also poses safety hazards and low work efficiency.

[0005] To achieve the above objectives, this application provides the following technical solution: an ecological treatment device for domestic sewage, comprising a pretreatment tank, a biological reactor, and a collection tank, wherein a first sediment interception box is fixedly connected between the pretreatment tank and the biological reactor, and a second sediment interception box is fixedly connected between the biological reactor and the collection tank.

[0006] A liquid inlet pipe is fixedly connected to the top of the pretreatment tank. Multiple water distributors are fixedly connected to the surface of the liquid inlet pipe. The water distributors are located inside the pretreatment tank. A first inclined block is fixedly connected to the bottom of the pretreatment tank. Two sliding boxes are fixedly connected to the top of the pretreatment tank. A power box is fixedly connected to the sides of the two sliding boxes. A dual-axis motor and a fixed block are fixedly connected inside the power box. A transmission rod is fixedly connected to the output end of the dual-axis motor. One end of the transmission rod rotates through a fixed plate and is fixedly connected to a first bevel gear. A rotating shaft is tightly nested inside the sliding box via bearings. A second bevel gear and a threaded rod are fixedly connected to both ends of the rotating shaft, respectively. The first bevel gear and the second bevel gear mesh with each other. A threaded cylinder is threadedly connected to the surface of the threaded rod. A movable block is fixedly connected to the surface of the threaded cylinder. A fixed cylinder is fixedly connected to the bottom of the movable block. An annular block is slidably connected inside the fixed cylinder. A connecting rod is fixedly connected to the bottom of the annular block. The bottom end of the connecting rod slides through the bottom of the fixed cylinder and is fixedly connected to a scraper. The bottom of the scraper overlaps the top of the first inclined block.

[0007] The above scheme, by setting up a dual-shaft motor, allows the transmission rod and the first bevel gear to rotate when the sludge at the bottom of the pretreatment tank needs to be cleaned. Through the meshing of the first and second bevel gears, the rotating shaft and threaded rod can be rotated. Through the limiting of the movable block, the fixed cylinder can be moved in the sliding box, which in turn can drive the scraper to move. Through the movement of the scraper, the sludge on the surface of the first inclined block can be scraped off. By setting up a water distributor, the sewage flow can be evenly distributed, avoiding excessive load in local areas and reducing sedimentation disturbance.

[0008] Furthermore, a connecting spring is fixedly connected to the top of the inside of the fixed cylinder, and the bottom end of the connecting spring is fixedly connected to the top of the annular block.

[0009] The above solution, by setting a connecting spring, can provide a downward pressure on the scraper when it moves, while also allowing the scraper to float up and down.

[0010] Furthermore, a fixing rod is fixedly connected to the top of the inside of the fixing cylinder, and connecting grooves are provided inside the connecting rod and the annular block. The fixing rod is located in the connecting groove, and a drain valve is provided on the side of the pretreatment tank.

[0011] The above solution restricts the rotational freedom of the scraper by setting a fixed rod and a connecting groove, ensuring vertical up-and-down floating. The scraped sludge can be discharged by setting a drain valve.

[0012] Furthermore, the top of the first sediment interception box and the top of the second sediment interception box are respectively equipped with a first mounting plate and a second mounting plate through the same structure. The first sediment interception box and the second sediment interception box are both fixedly connected to a limiting frame. The bottom of the first mounting plate is fixedly connected to an interception net and a first sand-blocking net. The bottom of the second mounting plate is fixedly connected to a second sand-blocking net. The interception net and the first sand-blocking net and the second sand-blocking net are slidably connected within the limiting frame.

[0013] The above scheme achieves dual filtration of large particles of silt by setting up an interception net and a first sand-blocking net. The first sand-blocking net can also intercept residual fine silt, protecting the collection tank. The limiting frame can fix the interception net, the first sand-blocking net, and the second sand-blocking net, preventing the filter screen from shifting due to water flow impact.

[0014] Furthermore, the first sediment interception box has a snap-fit ​​frame fixedly connected to both sides of its top, and an elastic telescopic rod fixedly connected to the inner side of the snap-fit ​​frame. One end of the elastic telescopic rod is fixedly connected to an L-shaped plate, and the side of the L-shaped plate has a first triangular groove. The top sides of the first mounting plate and the second mounting plate have second triangular grooves, and the first triangular groove and the second triangular groove are interlocked.

[0015] With the above scheme, by interlocking the first triangular groove and the second triangular groove, multiple L-shaped plates can be combined with two mounting plates to form a concave-convex interlocking structure. Then, by the clamping force provided by the elastic telescopic rod, it can be ensured that the two mounting plates are firmly embedded in the two snap-fit ​​frames.

[0016] Furthermore, both the first mounting plate and the second mounting plate are fixedly connected to a handle on their tops.

[0017] The above solution, by setting a handle, makes it easy to manually remove the installation plate and replace or clean the filter.

[0018] Furthermore, a placement plate is provided inside the bioreactor.

[0019] The above scheme utilizes a placement plate, which serves as a support structure inside the bioreactor.

[0020] Furthermore, a second inclined block is fixedly connected to the bottom of the water collection tank, a drain pipe is installed and connected to the side of the water collection tank, and a level sensor is fixedly connected to the inner side of the water collection tank.

[0021] The above scheme allows for the flow of treated clean water to the drain pipe by setting a second tilting block, thus preventing residue. By setting a level sensor and a drain pipe, the final purified clean water can be discharged and the water level can be controlled.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] This domestic sewage ecological treatment device, equipped with a dual-shaft motor, operates when sludge needs to be cleaned from the bottom of the pretreatment tank. This motor causes the transmission rod and the first bevel gear to rotate. Through the meshing of the first and second bevel gears, the rotating shaft and threaded rod are driven to rotate. The movable block limits the movement of the fixed cylinder within the sliding box, thereby moving the scraper. The movement of the scraper removes the sludge from the surface of the first inclined block. The fixed rod and connecting groove limit the rotational freedom of the scraper, ensuring vertical vertical movement. A drain valve allows the scraped sludge to be discharged. Attached Figure Description

[0024] Figure 1 This is a frontal three-dimensional structural diagram of this application;

[0025] Figure 2 This is a schematic diagram of the structure in frontal cross-section in this application;

[0026] Figure 3 This is a side-view three-dimensional structural schematic diagram of this application;

[0027] Figure 4 This is a schematic diagram of the structure of the dual-axis motor in this application;

[0028] Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle.

[0029] In the picture:

[0030] 1. Pretreatment tank; 101. Inlet pipe; 102. Water distributor; 103. First inclined block; 104. Drain valve; 105. Sliding box; 106. Power box; 107. Dual-shaft motor; 108. Fixed plate; 109. Transmission rod; 1010. First bevel gear; 1011. Rotating shaft; 1012. Second bevel gear; 1013. Threaded rod; 1014. Threaded cylinder; 1015. Movable block; 1016. Fixed cylinder; 1017. Fixed rod; 1018. Connecting spring; 1019. Annular block; 1020. Connecting rod; 1021. Connecting groove; 1022. Scraper;

[0031] 2. First sediment interception box; 201. Clip-on frame; 202. Limiting frame; 203. Elastic telescopic rod; 204. L-shaped plate; 205. First triangular groove;

[0032] 3. Biological reactor; 301. Placement plate;

[0033] 4. Second sediment interception box;

[0034] 5. Water collection tank; 501. Second inclined block; 502. Drain pipe; 503. Liquid level sensor;

[0035] 6. First mounting plate; 601. Second triangular groove; 602. Handle;

[0036] 7. Interception net;

[0037] 8. First sand-trapping net;

[0038] 9. Second mounting plate;

[0039] 10. Second sand-trapping net. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0041] Please see Figure 2 , Figure 4 and Figure 5 An ecological treatment device for domestic sewage in this embodiment includes a pretreatment tank 1, a biological reactor 3 and a collection tank 5. A first sediment interception box 2 is fixedly connected between the pretreatment tank 1 and the biological reactor 3, and a second sediment interception box 4 is fixedly connected between the biological reactor 3 and the collection tank 5.

[0042] A liquid inlet pipe 101 is fixedly connected to the top of the pretreatment tank 1. Multiple water distributors 102 are fixedly connected to the surface of the liquid inlet pipe 101. The water distributors 102 are installed inside the pretreatment tank 1. A first inclined block 103 is fixedly connected to the bottom of the pretreatment tank 1. Two sliding boxes 105 are fixedly connected to the top of the pretreatment tank 1. A power box 106 is fixedly connected to the side of the two sliding boxes 105. A dual-axis motor 107 and a fixed block are fixedly connected inside the power box 106. A transmission rod 109 is fixedly connected to the output end of the dual-axis motor 107. One end of the transmission rod 109 rotates through a fixed plate 108 and is fixedly connected to a first bevel gear 1010. A rotating shaft 1011 is tightly nested inside the sliding box 105 via bearings. Both ends of the rotating shaft 1011 are fixed. A second bevel gear 1012 and a threaded rod 1013 are connected. The first bevel gear 1010 meshes with the second bevel gear 1012. A threaded cylinder 1014 is threadedly connected to the surface of the threaded rod 1013. A movable block 1015 is fixedly connected to the surface of the threaded cylinder 1014. A fixed cylinder 1016 is fixedly connected to the bottom of the movable block 1015. An annular block 1019 is slidably connected inside the fixed cylinder 1016. A connecting rod 1020 is fixedly connected to the bottom of the annular block 1019. The bottom end of the connecting rod 1020 slides through the bottom of the fixed cylinder 1016 and is fixedly connected to a scraper 1022. The bottom of the scraper 1022 rests on the top of the first inclined block 103. When it is necessary to clean the sludge at the bottom of the pretreatment tank 1 by setting a dual-shaft motor 107, When the dual-shaft motor 107 operates, it causes the transmission rod 109 to rotate with the first bevel gear 1010. Through the meshing of the first bevel gear 1010 with the second bevel gear 1012, the rotating shaft 1011 and the threaded rod 1013 can be rotated. The limiting action of the movable block 1015 allows the fixed cylinder 1016 to move within the sliding box 105, thereby moving the scraper 1022. The movement of the scraper 1022 removes the sludge from the surface of the first inclined block 103. The water distributor 102 ensures even distribution of wastewater flow, preventing excessive load in localized areas and reducing sediment disturbance. A connecting spring 1018 is fixedly connected to the top of the fixed cylinder 1016, and the bottom of the connecting spring 1018 is fixedly connected to... At the top of the annular block 1019, a connecting spring 1018 is provided. When the scraper 1022 moves, the connecting spring 1018 provides a downward pressure on the scraper 1022, while also allowing the scraper 1022 to float up and down. A fixing rod 1017 is fixedly connected to the top of the fixed cylinder 1016. Connecting grooves 1021 are provided inside both the connecting rod 1020 and the annular block 1019. The fixing rod 1017 is located in the connecting groove 1021. A drain valve 104 is provided on the side of the pretreatment tank 1. By setting the fixing rod 1017 and the connecting groove 1021, the rotational freedom of the scraper 1022 can be restricted to ensure vertical up and down floating. By setting the drain valve 104, the scraped sludge can be discharged.

[0043] Please see Figure 2 and Figure 4 The top of the first sediment interception box 2 and the top of the second sediment interception box 4 are respectively equipped with a first mounting plate 6 and a second mounting plate 9 using the same structure. Both the first sediment interception box 2 and the second sediment interception box 4 are fixedly connected to a limiting frame 202. An interception net 7 and a first sand-blocking net 8 are fixedly connected to the bottom of the first mounting plate 6, and a second sand-blocking net 10 is fixedly connected to the bottom of the second mounting plate 9. The interception net 7, the first sand-blocking net 8, and the second sand-blocking net 10 are slidably connected within the limiting frame 202. By setting the interception net 7 and the first sand-blocking net 8, large particles of sediment can be filtered twice. By setting the second sand-blocking net 10, residual fine sediment can be intercepted, protecting the collection tank 5. By setting the limiting frame 202, the interception net 7, the first sand-blocking net 8, and the second sand-blocking net 10 can be fixed, preventing water flow from eroding them. The impact causes the filter screen to shift. The top of the first sediment interception box 2 is fixedly connected to the two opposite sides of the top of the snap-fit ​​frame 201. The inner side of the snap-fit ​​frame 201 is fixedly connected to the elastic telescopic rod 203. One end of the elastic telescopic rod 203 is fixedly connected to the L-shaped plate 204. The side of the L-shaped plate 204 is provided with a first triangular groove 205. The top of the first mounting plate 6 and the second mounting plate 9 are provided with second triangular grooves 601 on opposite sides. The first triangular groove 205 and the second triangular groove 601 are interlocked. Through the interlocking of the first triangular groove 205 and the second triangular groove 601, multiple L-shaped plates 204 can be combined with two mounting plates to form a concave-convex interlocking structure. Then, through the clamping force provided by the elastic telescopic rod 203, it can be ensured that the two mounting plates are firmly embedded in the two snap-fit ​​frames 201 respectively.

[0044] Please see Figure 1 , Figure 2 and Figure 4 Both the first mounting plate 6 and the second mounting plate 9 are fixedly connected to handles 602 at their tops. The handles 602 facilitate manual removal of the mounting plates for replacement or cleaning of the filter screen. The biological reactor 3 is equipped with a placement plate 301, which serves as a support structure inside the biological reactor 3. The bottom of the water collection tank 5 is fixedly connected to a second inclined block 501, and a drain pipe 502 is installed and connected to the side of the water collection tank 5. A level sensor 503 is fixedly connected to the inside side of the water collection tank 5. The second inclined block 501 guides the treated clean water to the drain pipe 502 to avoid residue. The level sensor 503 accurately detects the water level in the water collection tank 5. The drain pipe 502 discharges the final purified clean water.

[0045] In this embodiment, by setting a dual-axis motor 107, when it is necessary to clean the sludge at the bottom of the pretreatment tank 1, the dual-axis motor 107 runs, which causes the transmission rod 109 to rotate with the first bevel gear 1010. Through the meshing of the first bevel gear 1010 and the second bevel gear 1012, the rotating shaft 1011 and the threaded rod 1013 can be rotated. Through the limiting of the movable block 1015, the fixed cylinder 1016 can be moved within the sliding box 105, thereby driving the scraper 1022 to move. Through the movement of the scraper 1022, the first inclined block 103 can be cleaned. The sludge on the surface is scraped off. By setting up the water distributor 102, the sewage flow can be evenly distributed to avoid excessive load in local areas and reduce sediment disturbance. By setting up the connecting spring 1018, when the scraper 1022 moves, the connecting spring 1018 can provide a downward pressure on the scraper 1022. At the same time, it can also allow the scraper 1022 to float up and down. By setting up the fixing rod 1017 and the connecting groove 1021, the rotational freedom of the scraper 1022 can be restricted to ensure vertical up and down floating. By setting up the drain valve 104, the scraped sludge can be discharged.

[0046] The working principle of the above embodiment is as follows: During use, sewage flows into the pretreatment tank 1 through the inlet pipe 101 and the distributor 102. Under the action of the pretreatment tank 1 and the first inclined block 103, the sewage can settle and large particles of silt can be initially separated. Then, the sewage flows into the biological reaction tank 3 through the first silt interception box 2. Under the action of the interception net 7 and the first sand trap 8, the sewage can be filtered twice. The filtered sewage enters the biological reaction tank 3. Aquatic plants and microbial carriers are arranged in the biological reaction tank 3, which can be used to degrade organic matter. The degraded sewage flows into the collection tank 5 through the second silt interception box 4. Under the action of the second sand trap 10, residual fine silt can be intercepted. The water flowing into the collection tank 5 can be discharged through the drain pipe 502.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0048] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A domestic sewage ecological treatment device, comprising a pretreatment tank (1), a biological reactor (3), and a collection tank (5), characterized in that: A first sediment interception box (2) is fixedly connected between the pretreatment tank (1) and the biological reactor (3), and a second sediment interception box (4) is fixedly connected between the biological reactor (3) and the water collection tank (5). The pretreatment tank (1) is fixedly connected to the top of an inlet pipe (101), and multiple water distributors (102) are fixedly connected to the surface of the inlet pipe (101). The water distributors (102) are located inside the pretreatment tank (1). A first inclined block (103) is fixedly connected to the bottom of the pretreatment tank (1). Two sliding boxes (105) are fixedly connected to the top of the pretreatment tank (1). A power box (106) is fixedly connected to the sides of the two sliding boxes (105). A dual-axis motor (107) and a fixed block are fixedly connected inside the power box (106). A transmission rod (109) is fixedly connected to the output end of the dual-axis motor (107). One end of the transmission rod (109) rotates through a fixed plate (108) and is fixedly connected to a first bevel gear (1010). A rotating shaft (1010) is tightly nested inside the sliding box (105) via a bearing. 011), the two ends of the rotating shaft (1011) are respectively fixedly connected to a second bevel gear (1012) and a threaded rod (1013). The first bevel gear (1010) and the second bevel gear (1012) mesh with each other. The threaded rod (1013) is threadedly connected to a threaded cylinder (1014). The threaded cylinder (1014) is fixedly connected to a movable block (1015). The bottom of the movable block (1015) is fixedly connected to a fixed cylinder (1016). The fixed cylinder (1016) is slidably connected to an annular block (1019). The bottom of the annular block (1019) is fixedly connected to a connecting rod (1020). The bottom end of the connecting rod (1020) slides through the bottom of the fixed cylinder (1016) and is fixedly connected to a scraper (1022). The bottom of the scraper (1022) overlaps the top of the first inclined block (103).

2. The domestic sewage ecological treatment device according to claim 1, characterized in that: A connecting spring (1018) is fixedly connected to the top of the inside of the fixed cylinder (1016), and the bottom end of the connecting spring (1018) is fixedly connected to the top of the annular block (1019).

3. The domestic sewage ecological treatment device according to claim 2, characterized in that: A fixing rod (1017) is fixedly connected to the top of the inside of the fixing cylinder (1016). A connecting groove (1021) is provided inside the connecting rod (1020) and the annular block (1019). The fixing rod (1017) is located in the connecting groove (1021). A drain valve (104) is provided on the side of the pretreatment tank (1).

4. The domestic sewage ecological treatment device according to claim 1, characterized in that: The top of the first sediment interception box (2) and the top of the second sediment interception box (4) are respectively equipped with a first mounting plate (6) and a second mounting plate (9) through the same structure. The first sediment interception box (2) and the second sediment interception box (4) are both fixedly connected to a limiting frame (202). The bottom of the first mounting plate (6) is fixedly connected to an interception net (7) and a first sand-blocking net (8). The bottom of the second mounting plate (9) is fixedly connected to a second sand-blocking net (10). The interception net (7), the first sand-blocking net (8), and the second sand-blocking net (10) are slidably connected within the limiting frame (202).

5. The domestic sewage ecological treatment device according to claim 4, characterized in that: The first sediment interception box (2) has a snap-fit ​​frame (201) fixedly connected to both sides of the top. The snap-fit ​​frame (201) has an elastic telescopic rod (203) fixedly connected to the inner side. One end of the elastic telescopic rod (203) is fixedly connected to an L-shaped plate (204). The L-shaped plate (204) has a first triangular groove (205) on its side. The first mounting plate (6) and the second mounting plate (9) have a second triangular groove (601) on both sides of the top. The first triangular groove (205) and the second triangular groove (601) are interlocked.

6. The domestic sewage ecological treatment device according to claim 4, characterized in that: The top of the first mounting plate (6) and the second mounting plate (9) are both fixedly connected with handles (602).

7. The domestic sewage ecological treatment device according to claim 1, characterized in that: The bioreactor (3) is equipped with a placement plate (301).

8. The domestic sewage ecological treatment device according to claim 1, characterized in that: The bottom of the water collection tank (5) is fixedly connected to a second inclined block (501), the side of the water collection tank (5) is connected to a drain pipe (502), and the inside side of the water collection tank (5) is fixedly connected to a level sensor (503).

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