Tunnel construction wastewater treatment system

Abstract

This invention discloses a wastewater treatment system for tunnel construction, comprising: a filter box with an inlet and an outlet; a filtration mechanism including a filter block disposed within the filter box, the filter block having a rectangular horizontal cross-section filter opening, two cavities within the filter block, each cavity having an opening communicating with the filter opening, a support plate movable towards or away from the opening within each cavity, filter screens disposed on the support plate, and a connecting block connecting the ends of the two filter screens; a water inlet pipe communicating with the cavity, the water inlet pipe passing through the filter block and the filter box and extending outside the filter box; and a slag discharge port within the cavity. This invention, by setting up cavities, support blocks, connecting blocks, and filter screens, allows one filter screen to be used while the other is being flushed within the cavity, effectively preventing filter screen clogging and eliminating the need to pause filtration when cleaning residue, thus improving filtration efficiency.

Description

Technical Field

[0001] This invention relates to the field of tunnel construction equipment technology. More specifically, this invention relates to a tunnel construction wastewater treatment system. Background Technology

[0002] As we all know, tunnels are engineering structures buried underground. During tunnel construction, a large amount of construction wastewater is generated. If this wastewater is not treated and allowed to flow freely, it will cause environmental pollution. Wastewater treatment systems are required during tunnel construction to treat the generated wastewater. However, existing wastewater treatment devices cannot remove residue from the filter screens in a timely manner, leading to filter blockage and reduced filtration efficiency. Summary of the Invention

[0003] One object of the present invention is to solve at least the above-mentioned problems and to provide at least the advantages that will be described later.

[0004] Another objective of this invention is to provide a tunnel construction wastewater treatment system that, by setting up a cavity, support block, connecting block, and filter screen, allows one filter screen to be used for filtration while another filter screen is being flushed within the cavity. This effectively avoids filter screen clogging and does not require pausing filtration when cleaning residue, thus improving filtration efficiency.

[0005] To achieve these objectives and other advantages of the present invention, a tunnel construction wastewater treatment system is provided, comprising:

[0006] The filter box is equipped with an inlet and an outlet.

[0007] A filtration mechanism includes a filter block disposed within a filter box. The filter block has a filter opening with a rectangular horizontal cross-section. The filter block has two cavities symmetrically arranged along the filter opening. Each cavity has an opening that communicates with the filter opening. A support plate that can move toward or away from the opening is disposed within each cavity. A filter screen is disposed on the support plate. The width of the filter screen is slightly smaller than the width of the filter opening. The ends of the two filter screens are connected to a connecting block. A water inlet pipe is connected to each cavity. The water inlet pipe passes through the filter block and the filter box and extends out of the filter box. The cavity has a slag discharge port. When one filter screen passes through the opening and is located within the cavity, the other filter screen is located at the filter opening.

[0008] Preferably, the support plate is provided with a rotatable rotating shaft, the end of which is rotatably connected to the connecting block. The two filter screens are respectively disposed on the two rotating shafts. The lower part of the rotating shaft is provided with an arc-shaped first gear, the center of which is located on the central axis of the rotating shaft and is perpendicular to the rotating shaft. The first gear is disposed close to the support plate and is located below the filter screen.

[0009] Two rotary motors are installed outside the filter box. The output shafts of the two rotary motors extend into two cavities respectively. The ends of the output shafts of the rotary motors are connected to drive shafts, and the ends of the drive shafts are provided with arc-shaped second gears.

[0010] When the filter screen moves into the cavity, the rotary motor drives the second gear to rotate until the second gear meshes with the first gear. The rotary motor continues to rotate until the filter screen changes from a horizontal state to a vertical state. After the slag discharge is completed, the rotary motor drives the filter screen to change from a vertical state to a horizontal state.

[0011] Preferably, the connecting block includes a connecting portion, the length of which is slightly less than the length of the opening, the width of which is greater than the width of the opening, and protrusions on both sides of the connecting portion, the length of which is equal to the length of the connecting portion and the width of which is slightly less than the width of the opening, so that the protrusions can close the opening.

[0012] A sliding groove is provided through the connecting block. The sliding groove is located below the rotating shaft. Two pairs of cavities are provided below the sliding groove. The cavities are connected to sliding openings. The two pairs of sliding openings are located below two protrusions. A horizontally slidable support block is provided in the sliding groove. A first spring is provided in the cavity. A sliding rod is provided at the end of the first spring. The sliding rod is slidably disposed in the sliding opening. A connecting rod is provided on the sliding rod. The connecting rod is connected to the support block.

[0013] When the first spring is in its natural extended state, the slide rod protrudes from the slide opening, and the support block protrudes from the slide groove. When one of the protrusions is located in its corresponding opening, the slide rod drives the support block to move until the end of the slide rod is flush with the slide opening.

[0014] Preferably, multiple second springs are provided at intervals at both ends of the filter screen, wherein the ends of the multiple second springs at one end are connected to the support plate, and the ends of the multiple second springs at the other end are connected to the protrusion.

[0015] Preferably, the filter box is provided with two telescopic motors, the output shafts of the two telescopic motors extend into the two cavities respectively, and the output shafts of the telescopic motors are connected to the support plate to drive the support plate to move toward or away from the opening.

[0016] Preferably, the slag discharge port is connected to a slag discharge pipe;

[0017] Two processing boxes are provided outside the filter box. The two processing boxes are respectively connected to two slag discharge pipes. A screen is provided inside the processing box. The mesh size of the screen is smaller than that of the filter screen. The processing box is provided with a slag cleaning port and a water guide port. The water guide port is located below the filter block and is connected to the filter box. An openable and closable cover is provided at the slag cleaning port.

[0018] Preferably, the filter box is provided with two water guide pipes, the ends of which are respectively connected to two water inlet pipes, wherein the connection between the water guide pipes and the filter box is lower than the filter block.

[0019] The present invention has at least the following beneficial effects:

[0020] First, this invention, by setting up a cavity, a support plate, a connecting block, and a filter screen, allows one filter screen to be used while the other is being rinsed inside the cavity. This effectively avoids filter screen clogging, and filtration can be stopped without interrupting when cleaning residue, thus improving filtration efficiency. The connecting block not only connects the two filter screens but also seals the opening to prevent sewage from entering the cavity. At the same time, the support plate can also seal the opening. The water inlet pipe and the cavity enable rinsing of the filter screens, promptly removing residue from them.

[0021] Secondly, the present invention sets the filter screen to be able to change from a horizontal state to a vertical state, which facilitates the thorough removal of residue from the filter screen; the filter screen can be rotated relative to the support plate by setting a rotating shaft, and the filter screen can be driven to change from a horizontal state to a vertical state or from a vertical state to a horizontal state by setting a first gear, a second gear, and a rotating motor.

[0022] Third, the present invention supports the filter screen by setting a support block, thus preventing the filter screen from tilting during filtration; the opening can be blocked by setting a protrusion; the filter screen is supported by setting a support block; and by setting a slide rod, connecting rod, and first spring, the support block can be moved below the filter screen by the slide rod, and the support block can be moved by the slide rod, so that the filter screen located in the cavity can be separated from the support block to facilitate the rotation of the filter screen.

[0023] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the tunnel construction wastewater treatment system according to one of the technical solutions of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the filter block according to one of the technical solutions of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the filter block according to one of the technical solutions of the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of the filter screen according to one of the technical solutions of the present invention;

[0028] Figure 5 This is a schematic diagram of the slide groove according to one of the technical solutions of the present invention;

[0029] Figure 6 This is a schematic diagram of the structure of the connecting block according to one of the technical solutions of the present invention;

[0030] Figure 7 This is a schematic diagram of the structure of the connecting block according to one of the technical solutions of the present invention;

[0031] Figure 8 This is a state diagram of the second gear according to one of the technical solutions of the present invention, that is, when the filter screen is in a horizontal state;

[0032] Figure 9 This is a schematic diagram of the structure of the second gear according to one of the technical solutions of the present invention, that is, when the first gear and the second gear are meshing;

[0033] Figure 10 This is a state diagram of the second gear according to one of the technical solutions of the present invention, that is, when the filter screen is in a vertical state. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0035] like Figure 1-10 As shown, the present invention provides a tunnel construction wastewater treatment system, comprising:

[0036] The filter box 1 is provided with an inlet 2 and an outlet 19 (the inlet 2 is located at the top of the filter box 1, and the outlet 19 is located at the bottom of the filter box 1).

[0037] The filtration mechanism includes a filter block 3 disposed within the filter box 1. The filter block 3 has a filter port 20 with a rectangular horizontal cross-section. The filter block 3 has two cavities 6 arranged symmetrically along the filter port 20. Each cavity 6 has an opening that communicates with the filter port 20. Each cavity 6 has a support plate 7 that can move toward or away from the opening. The support plate 7 has a filter screen 21 with a width slightly smaller than the width of the filter port 20. The ends of the two filter screens 21 are connected to a connecting block 8. The cavity 6 is connected to a water inlet pipe 4 that passes through the filter block 3 and the filter box 1 and extends out of the filter box 1. The cavity 6 has a slag discharge port 14. When one filter screen 21 passes through the opening and is located within the cavity 6, the other filter screen 21 is located at the filter port 20 for filtration.

[0038] In this technical solution, the horizontal cross-section of the filter box 1 can be circular or rectangular; the filter block 3 is located in the middle of the filter box 1, the filter port 20 passes through the filter block 3, the cavity 6 is located inside the filter block 3, the two cavities 6 correspond to a pair of parallel sides of the filter port 20, the opening is located on the side of the filter port 20, and is used to connect the cavity 6 and the filter port 20. The size of the support plate 7 is slightly larger than the size of the opening so that the support plate 7 can block the opening during filtration. The width of the filter port 20 is the length of the side perpendicular to the moving direction of the filter screen 21. The length of the opening is equal to the width of the filter port 20. The two filter screens 21 are connected by a connecting block 8. The water inlet pipe 4 is used to rinse the filter screen 21. One end of the water inlet pipe 4 is connected to the cavity 6, and the other end is located outside the filter box 1. The slag discharge port 14 is used to discharge the residue in the cavity 6.

[0039] During use, when filtration begins, one filter screen 21 is located at the filter port 20, and the other filter screen 21 is located in the cavity 6. After filtration for a certain period of time, the filter screen 21 at the filter port 20 moves toward its corresponding opening and into its corresponding cavity 6. During the movement, the filter screen 21 in the cavity 6 moves toward the filter port 20 until it reaches the filter port 20 for filtration. When the filter screen 21 is at the filter port 20, the corresponding support plate 7 blocks the opening corresponding to the filter screen 21, and the connecting block 8 blocks the other opening.

[0040] By adopting this technical solution, the present invention enables one filter screen 21 to be flushed within the cavity 6 while the other filter screen 21 is filtering, through the setting of cavity 6, support plate 7, connecting block 8, and filter screen 21. This effectively avoids clogging of filter screen 21, and the filtration process can be completed without interrupting the process of cleaning residue, thus improving filtration efficiency. The connecting block 8 not only connects the two filter screens 21 but also seals the opening to prevent sewage from entering the cavity 6. At the same time, the support plate 7 can also seal the opening. The filter screen 21 can be flushed through the water inlet pipe 4 and cavity 6, and the residue on the filter screen 21 can be removed in a timely manner.

[0041] In another technical solution, the support plate 7 is provided with a rotatable rotating shaft 9 (the rotating shaft 9 can rotate relative to the support plate 7, specifically through a bearing seat connection), the end of the rotating shaft 9 is rotatably connected to the connecting block 8 (specifically through a bearing seat connection), two filter screens 21 are respectively and correspondingly arranged on the two rotating shafts 9 (each rotating shaft 9 corresponds to one filter screen 21), the lower part of the rotating shaft 9 is provided with an arc-shaped first gear 10, the center of the first gear 10 is located on the central axis of the rotating shaft 9, and the first gear 10 is perpendicular to the rotating shaft 9, the first gear 10 is arranged close to the support plate 7 and is located below the filter screen 21;

[0042] Two rotary motors 11 are provided outside the filter box 1 (the rotary motors 11 are forward and reverse motors, rotating until the filter screen 21 is in a vertical state, maintaining this position for a certain period of time, and then rotating in the opposite direction, and so on). The output shafts of the two rotary motors 11 extend into the two cavities 6 respectively. The end of the output shaft of the rotary motor 11 is connected to a drive shaft 12 (the drive shaft 12 is set horizontally). The end of the drive shaft 12 is provided with an arc-shaped second gear 13. The drive shaft 12 is perpendicular to the second gear 13. When the filter screen 21 is located at the filter port 20, the second gear 13 is located below the drive shaft 12 to facilitate the back-and-forth movement of the support plate 7.

[0043] When the filter screen 21 moves into the cavity 6, the rotary motor 11 drives the second gear 13 to rotate until the second gear 13 meshes with the first gear 10. The rotary motor 11 continues to rotate until the filter screen 21 changes from a horizontal to a vertical position. After the slag discharge is completed, the rotary motor 11 drives the filter screen 21 to change from a vertical to a horizontal position. When the filter screen 21 is located in the cavity 6, it is completely located within the cavity 6 to facilitate rotation. Using this technical solution, the present invention sets the filter screen 21 to be able to change from a horizontal to a vertical position, facilitating thorough removal of residue from the filter screen 21. The filter screen 21 can rotate relative to the support plate 7 by setting a rotating shaft 9, and the filter screen 21 can be driven to change from a horizontal to a vertical position or vice versa by setting the first gear 10, the second gear 13, and the rotary motor 11.

[0044] In another technical solution, the connecting block 8 includes a connecting portion 801, the length of which is slightly less than the length of the opening, and the width of which is greater than the width of the opening (to seal the opening). Both sides of the connecting portion 801 are provided with protrusions 802, the length of which is equal to the length of the connecting portion 801, and the width of which is slightly less than the width of the opening, so that the protrusions 802 can close the opening.

[0045] A horizontally oriented sliding groove 23 is provided through the connecting block 8. The sliding groove 23 is located below the rotating shaft 9. Two pairs of sub-cavities 26 are connected below the sliding groove 23 (each pair of sub-cavities 26 includes two sub-cavities 26, which are located within the connecting block 8). Each sub-cavity 26 is connected to a sliding opening 24 (the sliding opening 24 is horizontally oriented). The two pairs of sliding openings 24 are located below two protrusions 802 respectively (i.e., each protrusion 802 has two corresponding sliding openings 24 below it). A horizontally slidable support block 25 is provided in the sliding groove 23. A first spring 28 is provided in each sub-cavity 26. A sliding rod 27 is provided at the end of the first spring 28. The sliding rod 27 is slidably disposed within the sliding opening 24. A connecting rod 29 is provided on the sliding rod 27. The connecting rod 29 is connected to the support block 25 to drive the support block 25 to move through the sliding rod 27.

[0046] When the first spring 28 is in its natural extended state, the slide rod 27 protrudes from the sliding opening 24, and the support block 25 protrudes from the sliding groove 23 (i.e., symmetrical along the connecting block 8). When one of the protrusions 802 is located in its corresponding opening, the slide rod 27 drives the support block 25 to move until the end of the slide rod 27 is flush with the sliding opening 24. During use, when the protrusion 802 moves to the opening (but does not enter the opening at this time), the end of the slide rod 27 contacts the side wall of the filter port 20 (the slide rod 27 located below the protrusion 802). When the protrusion 802 continues to move, under the obstruction of the side wall of the filter port 20, the slide rod 27 moves until its end is flush with the sliding opening 24. The movement of the slide rod 27 drives the support block 25 to move until the other end of the support block 25 is located below the filter screen 21 and contacts the filter screen 21, thereby supporting the filter screen 21. By adopting this technical solution, the present invention supports the filter screen 21 by setting a support block 25, thereby preventing the filter screen 21 from tilting during filtration; the opening can be blocked by setting a protrusion 802; the filter screen 21 is supported by setting a support block 25; and by setting a slide rod 27, a connecting rod 29, and a first spring 28, the support block 25 can be moved below the filter screen 21 by the slide rod 27, and the support block 25 can be moved by the slide rod 27, so that the filter screen 21 located in the cavity 6 can be separated from the support block 25 to facilitate the rotation of the filter screen 21.

[0047] In another technical solution, multiple second springs 22 are spaced apart at both ends of the filter screen 21. The ends of the multiple second springs 22 at one end are connected to the support plate 7, and the ends of the multiple second springs 22 at the other end are connected to the protrusion 802. That is, multiple second springs 22 are provided between the filter screen 21 and the support plate 7, and between the filter screen 21 and the protrusion 802. Using this technical solution, the filter screen 21 is fixed by the second springs 22, thus providing support for the filter screen 21.

[0048] In another technical solution, two telescopic motors 5 are provided outside the filter box 1. The output shafts of the two telescopic motors 5 extend into two cavities 6 respectively. The output shafts of the telescopic motors 5 are connected to the support plate 7 to drive the support plate 7 to move toward or away from the opening. This technical solution achieves the goal of driving the support plate 7 to move.

[0049] In another technical solution, the slag discharge port 14 is connected to a slag discharge pipe 15;

[0050] The filter box 1 is equipped with two processing boxes 16, which are respectively connected to two slag discharge pipes 15. Each processing box 16 contains a screen 17 (horizontally arranged), the mesh size of which is smaller than that of the filter screen 21. Each processing box 16 has a slag removal port and a water guide port 18. The water guide port 18 is located below the filter block 3 and is connected to the filter box 1 to discharge water into the filter box 1 and out through the water outlet 19. The slag removal port has an openable cover; when slag needs to be removed, the cover is opened, and after cleaning, the cover is closed. Using this technical solution, the present invention achieves this by setting up processing boxes 16 and slag discharge ports 14.

[0051] In another technical solution, the filter box 1 is equipped with two water guide pipes, the ends of which are respectively connected to two water inlet pipes 4. The connection point between the water guide pipes and the filter box 1 is lower than the filter block 3, meaning that water filtered through the filter screen 21 is used to rinse the filter screen 21, achieving efficient water utilization. Water is then pumped through the filter. Using this technical solution, the present invention achieves efficient water utilization by setting up water guide pipes.

[0052] The number of devices and processing capacity described herein are for simplification. Applications, modifications, and variations of the tunnel construction wastewater treatment system of this invention will be readily apparent to those skilled in the art.

[0053] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A tunnel construction wastewater treatment system, characterized by, The utility model relates to a filter device, including: a filter box provided with a water inlet and a water outlet; a filter mechanism including a filter block provided in the filter box, the filter block being provided with a filter opening with a horizontal rectangular cross section, two cavities being provided in the filter block symmetrically along the filter opening, the cavities being provided with an opening in communication with the filter opening, the cavities being provided with a support plate movable towards or away from the opening, the support plate being provided with a filter screen, the width of the filter screen being slightly smaller than the width of the filter opening, the ends of the two filter screens being connected with a connecting block, wherein the cavities are communicated with a water feeding pipe, the water feeding pipe penetrating through the filter block, the filter box and extending out of the filter box, the cavities being provided with a residue discharging opening, when one of the filter screens penetrates through the opening and is located in the cavity, the other filter screen is located at the filter opening; the support plate being provided with a rotatable rotating shaft, the ends of the rotating shaft being rotatably connected with the connecting block, the two filter screens being respectively and correspondingly provided on the two rotating shafts, the lower part of the rotating shaft being provided with an arc-shaped first gear, the center of the first gear being located on the central axis of the rotating shaft, the first gear being perpendicular to the rotating shaft, the first gear being located below the filter screen and close to the support plate; the filter box being provided with two rotating motors, the output shafts of the two rotating motors extending into the two cavities, the ends of the output shafts of the rotating motors being connected with a driving shaft, the end of the driving shaft being provided with an arc-shaped second gear; wherein, when the filter screen moves into the cavity, the rotating motor drives the second gear to rotate to mesh with the first gear, the rotating motor continues to rotate to change the filter screen from a horizontal state to a vertical state, after residue discharging, the rotating motor drives the filter screen to change from a vertical state to a horizontal state; the connecting block including a connecting part, the length of the connecting part being slightly smaller than the length of the opening, the width of the connecting part being greater than the width of the opening, both sides of the connecting part being provided with a protruding part, the length of the protruding part being equal to the length of the connecting part and the width of the protruding part being slightly smaller than the width of the opening so that the protruding part can close the opening; a sliding groove being provided in the connecting block, the sliding groove being located below the rotating shaft, two pairs of sub-cavities being provided below the sliding groove, the sub-cavities being communicated with a sliding opening, the two pairs of sliding openings being respectively located below the two protruding parts, wherein a support block horizontally slidable is provided in the sliding groove, a first spring being provided in the sub-cavity, the end of the first spring being provided with a sliding rod, the sliding rod being slidably provided in the sliding opening, a connecting rod being provided on the sliding rod and connected with the support block; wherein, when the first spring is in a natural elongation state, the sliding rod protrudes from the sliding opening and the support block protrudes from the sliding groove, when one of the protruding parts is located in the corresponding opening, the sliding rod drives the support block to move to the end of the sliding rod flush with the sliding opening.

2. The tunneling wastewater treatment system of claim 1, wherein, The second springs are arranged at two ends of the filter screen, and the ends of the second springs at one end are connected with the support plate, and the ends of the second springs at the other end are connected with the convex part.

3. The tunneling wastewater treatment system of claim 2, wherein, Two telescopic motors are arranged outside the filter box, the output shafts of the two telescopic motors extend into the two cavities respectively, and the ends of the output shafts of the telescopic motors are connected with the support plate to drive the support plate to move towards or away from the opening.

4. The tunneling wastewater treatment system of claim 3, wherein, The slag discharge port is connected with a slag discharge pipe. Two treatment boxes are arranged outside the filter box, the two treatment boxes are communicated with the two slag discharge pipes respectively, a screen is arranged in the treatment box, the mesh of the screen is smaller than the mesh of the filter screen, the treatment box is provided with a slag cleaning port and a water guide port, the water guide port is located below the filter block and is communicated with the filter box, and a cover that can be opened and closed is arranged at the slag cleaning port.

5. The tunneling wastewater treatment system of claim 3, wherein, The filter box is provided with two water guide pipes, the ends of the two water guide pipes are communicated with two water adding pipes one by one in a one-to-one correspondence, and the connection position of the water guide pipe and the filter box is lower than the filter block.

Images