Ballast treatment device for water inlet pipeline of sewage treatment plant

Abstract

The invention relates to the technical field of sewage treatment, and discloses a sewage treatment plant water inlet pipeline rock ballast treatment device which comprises a slag discharge port, a slag discharge pipe and a slag receiving room, and the slag discharge port is formed in the bottom of the water inlet pipe; the inlet end of the slag discharging pipe is connected with the slag discharging opening in a sealed mode, the slag discharging pipe is located below the water inlet pipe, and a stop valve is installed on the slag discharging pipe; the slag receiving chamber is hollow and located below the slag discharging pipe, the outlet end of the slag discharging pipe is connected with the slag receiving chamber in a sealed mode, and an anti-leakage layer is arranged in an inner cavity of the slag receiving chamber. The device has the beneficial effects that stones, slag and the like located in the water inlet pipe fall into the slag discharging pipe from the slag discharging opening under the action of gravity and enter the slag receiving room from the slag discharging pipe, blocking of the stones, the slag and the like through a coarse grid is replaced, overflow caused by accumulation of the stones in front of the grid is prevented, and normal operation of a sewage treatment plant is ensured.

Description

Technical Field

[0001] The present invention relates to the field of sewage treatment technology, and in particular to a slag treatment device for a water inlet pipeline of a sewage treatment plant. Background Art

[0002] Sewage treatment plant inlet pipes contain gravel. This gravel is typically caused by surface runoff, including sediment, fallen leaves, and garbage (e.g., around construction sites), which enters the sewage system through rainwater grates. Furthermore, some industrial enterprises (e.g., building materials factories, mining processing plants, and concrete mixing plants) do not follow required pretreatment procedures and directly discharge wastewater containing sand, gravel, slag, and metal debris. Therefore, inorganic solid impurities such as gravel enter the sewage treatment plant through pretreatment to remove large gravel particles.

[0003] At present, coarse screens are set up to intercept stones, slag, metal debris, etc. in sewage. However, when hard impurities such as stones hit the screen teeth or chains, they can easily cause wear of the mechanical parts of the equipment (such as the bucket, bearings, and transmission chain), shortening the life of the equipment. In addition, large stones accumulate in front of the screen, forming a "dam", resulting in increased head loss and even causing sewage overflow, affecting the normal operation of the treatment plant. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that the stones, slag, etc. in the sewage are currently pre-treated by coarse screens, which may cause large stones to accumulate in front of the screen, causing overflow and affecting the normal operation of the treatment plant. The purpose is to provide a stone and slag treatment device for the water inlet pipe of the sewage treatment plant, so that the stones and slag, etc. located in the water inlet pipe fall from the slag outlet into the slag discharge pipe under the action of gravity, and enter the slag receiving room from the slag discharge pipe, instead of blocking the stones and slag, etc. through the coarse screen, preventing overflow caused by the accumulation of stones in front of the screen, and ensuring the normal operation of the sewage treatment plant.

[0005] The present invention is achieved through the following technical solutions: A slag treatment device for a water inlet pipe of a sewage treatment plant comprises a slag discharge port, a slag discharge pipe and a slag receiving room, wherein the slag discharge port is arranged at the bottom of the water inlet pipe; the inlet end of the slag discharge pipe is sealedly connected to the slag discharge port, the slag discharge pipe is located below the water inlet pipe, and a stop valve is installed on the slag discharge pipe; the slag receiving room is hollow inside and is located below the slag discharge pipe, the outlet end of the slag discharge pipe is sealedly connected to the slag receiving room, and the inner cavity of the slag receiving room is provided with an anti-leakage layer.

[0006] The beneficial effect of the present invention is that by arranging a slag discharge port at the bottom of the water inlet pipe and sealing the inlet end of the slag discharge pipe with the slag discharge port, the elevations of the slag discharge pipe and the slag receiving room are lowered in sequence, so that stones and slag, etc. located in the water inlet pipe fall from the slag discharge port into the slag discharge pipe under the action of gravity, and enter the slag receiving room from the slag discharge pipe. Moreover, since the inner cavity of the slag receiving room is provided with an anti-leakage layer, when the stop valve is not closed, the water entering the slag receiving room will flow back into the slag discharge pipe and enter the water inlet pipe from the slag discharge port. Since solids with a density greater than that of water, such as stones and slag, are retained in the slag receiving room, the stones and slag are collected in the slag receiving room instead of being blocked by coarse screens, thereby reducing the operating cost of the equipment and preventing overflow caused by stones accumulating in front of the screen, thereby ensuring the normal operation of the sewage treatment plant.

[0007] In some embodiments, a slag retaining plate is further included, wherein the bottom of the slag retaining plate is sealedly connected to the bottom of the inner cavity of the water inlet pipe, the top of the slag retaining plate is located in the water inlet pipe, and the slag retaining plate is located downstream of the slag discharge port. By arranging the slag retaining plate downstream of the slag discharge port and sealing the bottom of the slag retaining plate with the bottom of the inner cavity of the water inlet pipe, it is possible to prevent some slag and the like that have not entered the slag discharge port from falling due to their own gravity and the resistance of the slag retaining plate when encountering the slag retaining plate and entering the slag discharge port, thereby improving the effect of removing slag and the like.

[0008] In some embodiments, the top of the slag retaining plate is inclined toward the slag discharge port, and the vertical projection of the top of the slag retaining plate is located within the slag discharge port. By slanting the slag retaining plate and positioning the vertical projection of the top of the slag retaining plate within the slag discharge port, the direction of the gate plate's resistance to slag is directed toward the bottom of the water inlet pipe, further increasing the amount of slag entering the slag discharge port and further improving the effectiveness of removing slag.

[0009] In some embodiments, the shut-off valve is installed at the inlet end of the slag discharge pipe, and the angle α between the slag discharge pipe and the section of the water inlet pipe downstream of the slag discharge port is 30° to 45°. By setting the angle α between the slag discharge pipe and the section of the water inlet pipe downstream of the slag discharge port to 30° to 45°, the flow direction is changed at a gentle angle, which facilitates the sedimentation of debris and other materials to the bottom of the slag discharge pipe due to gravity and inertia when the fluid flows within the slag discharge pipe cavity, and then smoothly settles into the slag receiving room, thereby ensuring effective slag removal.

[0010] In some embodiments, the slag receiving room is a structure, and the anti-leakage layer is provided on the top, bottom, and side walls of the slag receiving room's inner cavity, and the anti-leakage layer is a rigid waterproof structure. By providing a rigid waterproof structure on the top, bottom, and side walls of the slag receiving room's inner cavity, the strength and rigidity of the structure are improved while ensuring anti-leakage properties, thereby preventing slag and the like from damaging the slag receiving room's waterproofing.

[0011] In some embodiments, the system further comprises a filter frame and a water pump, wherein the water pump is mounted on the outside of the slag receiving room, the filter frame is mounted on the inner bottom of the slag receiving room, and the suction end of the water pump's water pipe is located within the inner cavity of the filter frame. By installing the filter frame within the slag receiving room and arranging the suction end of the water pump's water pipe within the inner cavity of the filter frame, slag and rocks within the slag receiving room are prevented from being sucked into the water pump, thereby affecting the normal operation of the water pump. Furthermore, when the stop valve closes the slag discharge pipe, water within the slag receiving room can be pumped out by the water pump.

[0012] In some embodiments, the filter frame includes a first filter frame and a second filter frame, the second filter frame being located within the inner cavity of the first filter frame, the suction end of the water pump's suction pipe being located within the inner cavity of the second filter frame, the filter layer of the first filter frame being made of wire mesh, and the filter layer of the second filter frame being made of geotextile or thick linen. The first filter frame, comprised of wire mesh, blocks most particulate matter from flowing outside the first filter frame, and the second filter frame, comprised of a filter layer made of geotextile or thick linen, is disposed inside the first filter frame to further block fine particulate matter from flowing outside the second filter frame, thereby ensuring that water drawn by the water pump does not affect the normal operation of the water pump.

[0013] In some embodiments, a slag removal door is installed on the side wall of the slag receiving room. A groove is provided on the inner side of the door frame of the slag receiving room. An elastic sealing strip is installed on the edge of the slag removal door to match the groove. The slag removal door is connected to the door frame via a top and bottom lock and a side lock. By installing a sealing slag removal door on the side wall of the slag receiving room, the entire slag receiving room is ensured to be leak-proof. When slag removal is required, workers can first close the slag discharge pipe with a stop valve, open the slag removal door, and enter the slag receiving room to clean the slag and rocks inside.

[0014] In some embodiments, a ventilation cover is further included, the ventilation cover being connected to the top of the slag receiving room. The top of the slag receiving room is provided with a mounting frame having a groove. The edge of the ventilation cover is provided with a silicone sealing ring that matches the groove. By providing a ventilation cover that is sealed to the top of the slag receiving room, the entire slag receiving room is ensured to be leak-proof. When slag removal is required, the ventilation cover can be opened first to allow sufficient oxygen into the slag receiving room before opening the slag removal door, thereby ensuring the safety and health of workers during slag removal.

[0015] In some embodiments, a mounting base is mounted on the top of the slag receiving room, a cylinder is mounted on top of the mounting base, the free end of the piston rod of the cylinder is hinged to the outer side of the vent cover, and the cylinder is electrically connected to a control terminal. By providing a mounting base on the top of the slag receiving room and mounting the cylinder on top of the mounting base, the free end of the piston rod of the cylinder can be hinged to the control terminal, so that the vent cover can be opened and closed by extending and retracting the piston rod during operation.

[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. The stones and slag in the water inlet pipe fall from the slag outlet into the slag pipe under the action of gravity, and then enter the slag receiving room from the slag pipe, instead of being blocked by coarse screens, to prevent overflow caused by stones accumulating in front of the screen, and ensure normal sewage treatment.

[0017] 2. Since the grille requires continuous electricity during use, the solution in the present invention does not require continuous electricity use, thereby reducing the operating cost of the equipment and not affecting the service life of the grille, further reducing the cost of use.

[0018] 3. A slag retaining plate is set downstream of the slag discharge port, and the bottom of the slag retaining plate is sealed and connected to the bottom of the inner cavity of the water inlet pipe to prevent some slag that has not entered the slag discharge port from falling under the action of its own gravity and the resistance of the slag retaining plate when encountering the slag retaining plate, and entering the slag discharge port, thereby improving the effect of removing slag and stone. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the examples. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be considered as limiting the scope. A person of ordinary skill in the art can also derive other relevant drawings based on these drawings without inventive effort. In the drawings: Figure 1 It is a structural schematic diagram of the present invention; Figure 2 This is a diagram of the internal structure of the water inlet pipe in the present invention; Figure 3 This is a diagram of the internal structure of the slag receiving room in the present invention.

[0020] Markings and corresponding parts names in the accompanying drawings: Water inlet pipe 10, slag discharge port 11, slag baffle 20, slag discharge pipe 30, stop valve 31, slag receiving room 32, air permeable cover 33, cylinder 331, mounting seat 335, slag removal door 34, first filter frame 35, second filter frame 36, water pumping pipe 37, water pumping pump 38. DETAILED DESCRIPTION

[0021] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with examples and drawings. The exemplary embodiments of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0022] Throughout this specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment of the present invention. Therefore, appearances of the phrases "one embodiment," "an embodiment," "an example," or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combinations and / or subcombinations. Furthermore, it will be understood by those of ordinary skill in the art that the figures provided herein are for illustrative purposes only and are not necessarily drawn to scale. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0023] In the description of the present invention, the terms "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0024] The terms "first" and "second" used in the present invention are only used to distinguish corresponding components for the sake of clarity of description and are not intended to limit any order or emphasize importance. In addition, the term "connected" used in this article can refer to direct connection or indirect connection via other components unless otherwise specified.

[0025] Example See also Figure 1-Figure 3 This embodiment provides a slag treatment device for the water inlet pipe of a sewage treatment plant, comprising a slag discharge port 11, a slag discharge pipe 30, and a slag receiving room 32. The slag discharge port 11 is located at the bottom of the water inlet pipe 10; the inlet end of the slag discharge pipe 30 is sealedly connected to the slag discharge port 11, the slag discharge pipe 30 is located below the water inlet pipe 10, and a shut-off valve 31 is installed on the slag discharge pipe 30; the slag receiving room 32 is hollow and located below the slag discharge pipe 30, and the outlet end of the slag discharge pipe 30 is sealedly connected to the slag receiving room 32, and the inner cavity of the slag receiving room 32 is provided with an anti-leakage layer. Stones and slag are collected in the slag receiving room 32, instead of being blocked by coarse screens, thereby reducing equipment operating costs and preventing overflow caused by stone accumulation in front of the screen, ensuring normal sewage treatment.

[0026] See also Figure 1-Figure 2, further comprising a slag blocking plate 20, the bottom of which is sealedly connected to the bottom of the inner cavity of the water inlet pipe 10, and the top of which is located in the water inlet pipe 10, and the slag blocking plate 20 is located downstream of the slag discharge port 11. By arranging the slag blocking plate 20 downstream of the slag discharge port 11 and sealingly connecting the bottom of the slag blocking plate 20 to the bottom of the inner cavity of the water inlet pipe 10, it is possible to prevent some slag and the like that have not entered the slag discharge port 11 from falling under the action of their own gravity and the resistance of the slag blocking plate 20 when encountering the slag blocking plate 20 and entering the slag discharge port 11, thereby improving the effect of removing slag and the like.

[0027] See also Figure 1-Figure 2 The top of the slag retaining plate 20 is inclined toward the slag discharge port 11, and the vertical projection of the top of the slag retaining plate 20 is located within the slag discharge port 11. By tilting the slag retaining plate 20 and positioning the vertical projection of the top of the slag retaining plate 20 within the slag discharge port 11, the direction of the resistance of the gate plate to the slag is directed toward the bottom of the water inlet pipe 10, further increasing the amount of slag entering the slag discharge port 11 and further improving the effect of removing slag.

[0028] See also Figure 1-Figure 3 The shut-off valve 31 is installed at the inlet end of the slag discharge pipe 30. The included angle α between the slag discharge pipe 30 and the section of the water inlet pipe 10 downstream of the slag discharge port 11 is 30° to 45°. By setting the included angle α between the slag discharge pipe 30 and the section of the water inlet pipe 10 downstream of the slag discharge port 11 to 30° to 45°, the flow direction is gently changed. This facilitates the flow of fluid within the cavity of the slag discharge pipe 30, allowing slag and rocks to more easily settle to the bottom of the slag discharge pipe 30 due to gravity and inertia, and then smoothly settle into the slag receiving chamber 32, thereby ensuring effective slag removal.

[0029] See also Figure 1-Figure 3 The slag receiving room 32 is a structure, and the anti-leakage layer is arranged on the top, bottom and side walls of the inner cavity of the slag receiving room 32. The anti-leakage layer is a rigid waterproof structure. By setting the top, bottom and side walls of the inner cavity of the slag receiving room 32 as rigid waterproof structures, it is convenient to improve the strength and rigidity of the structure while meeting the anti-leakage requirements, and prevent slag and the like from damaging the waterproof effect of the slag receiving room 32. The rigid waterproof structure in the present invention is a structure with cement, sand and stone as the base material, and the density is improved by adding waterproofing agents, water reducing agents and the like. The rigid waterproof structure can also be composed of welded steel plates. The rigid waterproof structure is a prior art and will not be described in detail in the present invention.

[0030] See also Figure 1-Figure 3, further comprising a filter frame and a water pump 38. The water pump 38 is mounted on the outside of the slag receiving room 32, the filter frame is mounted on the inner bottom of the slag receiving room 32, and the suction end of the water pipe 37 of the water pump 38 is located in the inner cavity of the filter frame. By installing the filter frame in the slag receiving room 32 and arranging the suction end of the water pipe 37 of the water pump 38 in the inner cavity of the filter frame, slag and rocks in the slag receiving room 32 are prevented from being sucked into the water pump 38, thereby affecting the normal operation of the water pump 38. It is also convenient to pump out water in the slag receiving room 32 through the water pump 38 when the stop valve 31 closes the slag discharge pipe 30.

[0031] See also Figure 1-Figure 3 The filter frame includes a first filter frame 35 and a second filter frame 36. The second filter frame 36 is located within the inner cavity of the first filter frame 35. The suction end of the pump pipe 37 of the pumping pump 38 is located within the inner cavity of the second filter frame 36. The filter layer of the first filter frame 35 is made of wire mesh, and the filter layer of the second filter frame 36 is made of geotextile or thick linen. The first filter frame 35, which is made of wire mesh, blocks most particulate matter from the outside of the first filter frame 35. The second filter frame 36, which is made of a filter layer made of geotextile or thick linen, is located inside the first filter frame 35 to further block fine particulate matter from the outside of the second filter frame 36. This ensures that the water extracted by the pumping pump 38 does not affect the normal operation of the pump 38.

[0032] See also Figure 1-Figure 3 A slag removal door 34 is installed on the side wall of the slag receiving room 32. A groove is provided on the inner side of the door frame of the slag receiving room 32. An elastic sealing strip is installed on the edge of the slag removal door 34 to match the groove. The slag removal door 34 is connected to the door frame via a top and bottom lock and a side lock. The sealing slag removal door 34 installed on the side wall of the slag receiving room 32 ensures that the entire slag receiving room 32 is leak-proof. When slag removal is required, workers first close the slag discharge pipe 30 via the stop valve 31. Then, workers open the slag removal door 34 and enter the slag receiving room to clean the slag and rocks inside.

[0033] See also Figure 1-Figure 3 The slag receiving room 32 further includes a breathable cover 33 connected to the top of the slag receiving room 32. The top of the slag receiving room 32 is provided with a mounting frame with a groove. The edge of the breathable cover 33 is installed with a silicone sealing ring that matches the groove. By providing the breathable cover 33 with a sealing connection to the top of the slag receiving room 32, the entire slag receiving room 32 is ensured to be leak-proof. When slag removal is required, the breathable cover 33 is opened first to allow sufficient oxygen to enter the slag receiving room 32 before opening the slag removal door 34, thereby ensuring the safety and health of workers during slag removal.

[0034] The sealing structure of the air permeable cover 33 or the slag removal door 34 connected to the slag receiving room 32 in the present invention can also refer to the explosion-proof sealing door: thickened steel plate + airtight rubber strips are used, and high-pressure sealing is achieved by fastening with bolts to prevent explosion impact and leakage of harmful gases.

[0035] See also Figure 1-Figure 3 A mounting base 335 is mounted on the top of the slag receiving room 32. A cylinder 331 is mounted on top of the mounting base 335. The free end of the piston rod of the cylinder 331 is hinged to the outside of the air permeable cover 33. The cylinder 331 is electrically connected to the control terminal. By providing the mounting base 335 on the top of the slag receiving room 32 and mounting the cylinder 331 on top of the mounting base 335, the free end of the piston rod of the cylinder 331 can be hinged to the control terminal, allowing the air permeable cover 33 to be opened and closed during operation by extending and retracting the piston rod.

[0036] See also Figure 2-Figure 3 Specifically, an inclined portion is provided on the top of the mounting seat 335, the cylinder 331 is installed on the inclined portion, the air cover 33 is hinged on the mounting frame, and the free end of the piston rod of the cylinder 331 is connected to the end away from the air cover 33 and hinged to the mounting frame.

[0037] See also Figure 3 When it is necessary to remove the slag in the slag receiving room 32, first close the slag discharge pipe 30 through the stop valve 31, then start the water pump 38 to extract water from the slag receiving room 32, then control the cylinder 331 to open the air vent, and then open the slag removal door 34, and then have workers remove the slag in the slag receiving room 32.

[0038] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A slag treatment device for the water inlet pipe of a sewage treatment plant, characterized in that: include: A slag discharge port, the slag discharge port being arranged at the bottom of the water inlet pipe; A slag discharge pipe, the inlet end of which is sealedly connected to the slag discharge port, the slag discharge pipe is located below the water inlet pipe, and a stop valve is installed on the slag discharge pipe; The slag receiving room is hollow inside and is located below the slag discharge pipe. The outlet end of the slag discharge pipe is sealed and connected to the slag receiving room. The inner cavity of the slag receiving room is provided with an anti-leakage layer.

2. The slag treatment device for the water inlet pipe of a sewage treatment plant according to claim 1, characterized in that: It also includes a slag blocking plate, the bottom of which is sealed with the bottom of the inner cavity of the water inlet pipe, the top of which is located in the water inlet pipe, and the slag blocking plate is located downstream of the slag discharge port.

3. The slag treatment device for the water inlet pipe of a sewage treatment plant according to claim 2, characterized in that: The top of the slag blocking plate is inclined toward the slag discharge port, and the vertical projection of the top of the slag blocking plate is located in the slag discharge port.

4. The slag treatment device for the water inlet pipe of a sewage treatment plant according to claim 1, characterized in that: The stop valve is installed at the inlet end of the slag discharge pipe, and the angle α between the slag discharge pipe and the pipe section of the water inlet pipe located downstream of the slag discharge port is 30° to 45°.

5. The slag treatment device for the water inlet pipe of a sewage treatment plant according to claim 1, characterized in that: The slag receiving room is a structure, and the anti-leakage layer is arranged on the top, bottom and side walls of the inner cavity of the slag receiving room. The anti-leakage layer is a rigid waterproof structure.

6. The slag treatment device for the water inlet pipe of a sewage treatment plant according to claim 1, characterized in that: It also includes a filter frame and a water pump. The water pump is installed on the outside of the slag receiving room, the filter frame is installed on the inner bottom of the slag receiving room, and the suction end of the water pump's suction pipe is located in the inner cavity of the filter frame.

7. The slag treatment device for the water inlet pipe of a sewage treatment plant according to claim 6, characterized in that: The filter frame includes a first filter frame and a second filter frame, the second filter frame is located in the inner cavity of the first filter frame, the suction end of the water pump pipe is located in the inner cavity of the second filter frame, the filter layer of the first filter frame is made of wire mesh, and the filter layer of the second filter frame is made of geotextile or thick linen.

8. The slag treatment device for the water inlet pipe of a sewage treatment plant according to claim 1, characterized in that: A slag removal door is installed on the side wall of the slag receiving room, a groove is provided on the inner side of the door frame of the slag receiving room, an elastic sealing strip matching the groove is installed on the edge of the slag removal door, and the slag removal door is connected to the door frame through a top and bottom lock and a side lock.

9. The slag treatment device for the water inlet pipe of a sewage treatment plant according to claim 1, characterized in that: It also includes a breathable cover connected to the top of the slag receiving room. The top of the slag receiving room is provided with a mounting frame, the mounting frame is provided with a groove, and the edge of the breathable cover is installed with a silicone sealing ring that matches the groove.

10. The slag treatment device for the water inlet pipe of a sewage treatment plant according to claim 9, characterized in that: A mounting seat is installed on the top of the slag receiving room, a cylinder is installed on the top of the mounting seat, a free end of the piston rod of the cylinder is hinged to the outer side of the breathable cover, and the cylinder is electrically connected to the control terminal.

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