Tunnel construction wastewater separation treatment equipment

Abstract

The invention provides tunnel construction wastewater separation treatment equipment which comprises a prying frame assembly and a primary separation mechanism, and the prying frame assembly comprises a desliming prying frame, a water treatment prying frame, a sludge discharging prying frame and a pump prying frame; the desliming prying frame and the water treatment prying frame are both mounted on the upper surface of the sludge discharging prying frame; through the primary separation mechanism, the spiral guide plate is utilized to enable entering wastewater to form vortex in the desliming tank, so that the vortex centrifugal force is utilized to enable silt carried in the wastewater to move towards the outer side, the flow speed of the silt is reduced, and the silt is deposited at the bottom of the desliming tank; then, the water guide mechanism is matched with the water guide pipe to pump out the waste water after silt separation at the vortex center, and the waste water is conveyed into the secondary treatment mechanism for secondary treatment, so that the condition of blockage caused by excessive silt carried in the waste water is avoided; and sediment deposited in the desliming tank can be pushed into the sludge discharging mechanism by utilizing a rotating third auger column, so that the effect of separating the sediment in the desliming tank is ensured.

Description

Technical Field

[0001] The invention relates to wastewater treatment equipment, in particular to tunnel construction wastewater separation and treatment equipment, belonging to the technical field of construction wastewater treatment. Background Art

[0002] Tunnel construction wastewater mainly includes tunnel water gushing, drilling and blasting wastewater, shotcrete and grouting wastewater, etc. It usually has the characteristics of high suspended matter content, complex chemical composition, and difficulty in treatment. If it is discharged directly without treatment, it will easily cause pollution to the surrounding environment.

[0003] The Chinese patent, entitled A Tunnel Wastewater Treatment and Processing Equipment (publication number CN117883831A), discloses a wastewater treatment and processing technology, which uses a cylinder to drive a cleaning unit to slide on the side wall of a conical sedimentation tank to clean the inner wall of the conical sedimentation tank, so that the sludge layer attached to the inner wall of the conical sedimentation tank is separated from the conical sedimentation tank and re-enters the sludge return cycle, thereby improving the efficiency of the water treatment box for tunnel construction wastewater. The cleaning plate can be flattened against the inner wall of the conical sedimentation tank by rotating the extrusion drive arm and maintaining a downward displacement action, so that the sludge attached to the conical sedimentation tank can be scraped off and broken up, and then re-enter the sludge return cycle, thereby preventing the water treatment efficiency from being reduced due to frequent cleaning cycles; however, the overall structure of the equipment is an integrated structure, which not only has a high transportation cost, but also uses sedimentation to separate silt, and the treatment efficiency is low.

[0004] The Chinese patent, entitled A Green and Environmentally Friendly Tunnel Construction Wastewater Circulation Device (publication number CN118811905A), discloses a construction wastewater circulation technology that can effectively remove solid particles in wastewater through coarse and fine filters to ensure that the wastewater reaches a high degree of cleanliness before entering the mixing barrel. At the same time, through the adjustment component, the filter component can be easily lifted to the top of the sedimentation barrel to clean the solid particles on the filter screen, thereby improving the filtration efficiency and reducing the frequency and workload of manual cleaning. However, although the device can use the coarse filter screen to initially filter out solid particles, the solid particles are still prone to clogging the coarse filter screen, which not only affects the treatment efficiency, but also requires regular cleaning, resulting in a high overall cost of use. For this reason, a tunnel construction wastewater separation and treatment device is proposed. Summary of the invention

[0005] In view of this, the present invention provides a tunnel construction wastewater separation and treatment device to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial choice.

[0006] The technical solution of the embodiment of the present invention is implemented as follows: a tunnel construction wastewater separation and treatment device, including a skid assembly and a primary separation mechanism, wherein the skid assembly includes a desludging skid, a water treatment skid, a mud discharge skid and a pump skid; The desludging skid and the water treatment skid are both installed on the upper surface of the desludging skid, the pump skid is arranged on one side of the desludging skid, the primary separation mechanism is installed on the top of the inner wall of the desludging skid, the secondary treatment mechanism is installed on the top of the inner wall of the water treatment skid, the desludging mechanism is installed on the top of the inner wall of the desludging skid, a synchronous pushing mechanism and a water guiding mechanism are installed between the primary separation mechanism and the secondary treatment mechanism, and a pressure bearing mechanism is installed on the bottom of the inner wall of the secondary treatment mechanism; Wherein, the primary separation mechanism includes a desludging tank, a spiral guide plate and a water diversion pipe, and the synchronous pushing mechanism includes a third auger column and a water stirring frame; Among them, the demudifying tank is fixedly connected to the top of the inner wall of the demudifying skid frame, the spiral guide plate is fixedly connected to the inner wall of the demudifying tank, the water diversion pipe is fixedly connected to the top of the inner wall of the demudifying tank, the third auger column is arranged in the middle of the inner wall of the demudifying tank, and the water stirring frame is fixedly connected to the middle of the outer wall of the third auger column.

[0007] Further preferably, the primary separation mechanism further includes an external pipe, a sewage inlet pipe and a sewage outlet pipe; Among them, one end of the external pipe is connected to the top of the outer wall of the water diversion pipe, the other end of the external pipe passes through the inner wall of the desludging tank, one end of the sewage inlet pipe is connected to the top of the outer wall of the desludging tank, and one end of the sewage discharge pipe is connected to the bottom of the desludging tank.

[0008] Further preferably, the secondary treatment mechanism includes a water treatment tank, a support grid, modified fiber balls, a water purification filter cartridge, a drainage pipe, a drainage valve and a cylindrical water-passing air bag; Among them, the water treatment tank is fixedly connected to the top of the inner wall of the water treatment skid frame, the supporting grid is fixedly connected to the middle of the inner wall of the water treatment tank, the outer wall of the cylindrical water-passing airbag is fixedly connected to the inner wall of the supporting grid, the water purification filter cartridge is arranged inside the supporting grid and installed in the middle of the inner wall of the water treatment tank, the modified fiber balls are filled between the water purification filter cartridge and the cylindrical water-passing airbag, one end of the drainage pipe is connected to the bottom of the water treatment tank, and one end of the drain valve is connected to the bottom of the outer wall of the water treatment tank.

[0009] Further preferably, the mud discharge mechanism includes a first motor, a first auger column, a plurality of water-passing microholes, a slide, a plug column, a first spring, a mud discharge pipe, two branch pipes and a dewatering cylinder; In which, the dewatering cylinder is fixedly connected to the top of the inner wall of the mud discharge skid frame, the first motor is installed at one end of the dewatering cylinder, the first auger column is arranged inside the dewatering cylinder, one end of the first auger column is fixedly connected to the output shaft of the first motor, the slide is fixedly connected to the other end of the dewatering cylinder, the outer wall of the plug column is slidably connected to the inner wall of the dewatering cylinder close to one end of the slide, the inner wall of the plug column is slidably connected to the outer wall of the slide, the first spring is fixedly connected between the slide and the plug column, the mud discharge pipe is connected to the bottom of the outer wall of the dewatering cylinder close to one end of the slide, the two branch pipes are symmetrically connected to the top of the outer wall of the dewatering cylinder, one end of one branch pipe is connected to the sewage pipe flange, and one end of the other branch pipe is connected to the debris discharge pipe flange.

[0010] Further preferably, the synchronous pushing mechanism further includes a driving mechanism, a first pulley, a transmission belt, a second pulley and a second auger column; Wherein, the driving mechanism is installed on one side of the upper surface of the water treatment tank, the first pulley is installed in the middle of the upper surface of the water treatment tank, the second pulley is installed in the middle of the upper surface of the demudification tank, the transmission belt is sleeved on the outer wall of the second pulley and the transmission belt, one end of the third auger column penetrates the inner wall of the demudification tank and is fixedly connected to the inner wall of the second pulley, the second auger column is arranged on the inner wall of the water purification filter cartridge, one end of the second auger column penetrates the inner wall of the water treatment tank and is fixedly connected to the inner wall of the first pulley, and a plurality of the water-passing micropores are opened on the outer walls of the first auger column and the second auger column.

[0011] Further preferably, the driving mechanism is composed of a mounting frame, a second motor and a gear; Among them, the mounting frame is fixedly connected to one side of the upper surface of the water treatment tank, the second motor is installed in the middle of the upper surface of the mounting frame, the gear is rotatably connected between the upper surface of the water treatment tank and the mounting frame, the output shaft of the second motor is fixedly connected to one end of the gear, and the outer wall of the gear is meshed with the bottom of the outer wall of the first pulley.

[0012] Further preferably, the water guiding mechanism comprises a water pump, a water guiding connecting pipe and a water guiding delivery pipe; Among them, the water pump is installed in the middle of the inner wall of the water treatment skid, one end of the water connecting pipe is flange-connected to one end of the external pipe, the other end of the water connecting pipe is connected to the water inlet of the water pump, one end of the water conveying pipe is connected to the drain outlet of the water pump, and the other end of the water conveying pipe passes through the water treatment tank, the supporting grid, the cylindrical water-passing airbag, the inner wall of the modified fiber ball and extends to the interior of the water purification filter cartridge.

[0013] Further preferably, the pressure-bearing mechanism includes a support frame, a sealing baffle, a guide shaft and a second spring; Among them, the support frame is fixedly connected to the middle part of the inner wall of the drainage pipe, the outer wall of the sealing baffle is slidably connected to the bottom of the inner wall of the water treatment tank, one end of the guide shaft is fixedly connected to the bottom of the sealing baffle, the outer wall of the guide shaft is slidably connected to the inner wall of the support frame, the second spring is sleeved on the outside of the guide shaft, and the second spring is fixedly connected between the sealing baffle and the support frame.

[0014] Further preferably, a sewage pump is installed at the bottom of the inner wall of the pump skid frame, the discharge port of the sewage pump is connected to a sewage pipe, one end of the sewage pipe passes through the inner wall of the pump skid frame and is flange-connected to one end of the sewage inlet pipe.

[0015] Further preferably, a compression mechanism is installed on the top of the water treatment tank, and the compression mechanism includes an electric push rod, an air storage cylinder, a piston plate and an air guide pipe; Among them, the electric push rod is installed on one side of the upper surface of the water treatment tank, the air cylinder is fixedly connected to one side of the top of the inner wall of the water treatment tank, the outer wall of the piston plate is slidably connected to the inner wall of the air cylinder, the piston rod of the electric push rod is fixedly connected to the top of the piston plate, one end of the air guide pipe is connected to the bottom of the air cylinder, the other end of the air guide pipe passes through the supporting grid and is connected to the interior of the cylindrical water-passing air bag, and the top of the outer wall of the water treatment tank is connected to a recoil pipe.

[0016] The embodiment of the present invention has the following advantages due to the adoption of the above technical solution: 1. The present invention uses a spiral guide plate through a primary separation mechanism to form a vortex inside the desludging tank for the incoming wastewater, so that the centrifugal force of the vortex can be used to move the silt carried in the wastewater outward, reduce its flow rate, and make it deposit at the bottom of the desludging tank. Then, the wastewater after the silt is separated at the center of the vortex is extracted through the water guide mechanism in cooperation with the water guide pipe, and transported to the interior of the secondary treatment mechanism for secondary treatment, thereby avoiding blockage caused by excessive silt carried in the wastewater, and the rotating third auger column can be used to push the silt deposited in the desludging tank to the interior of the sludge discharge mechanism, thereby ensuring the effect of silt separation in the desludging tank.

[0017] 2. The present invention uses a synchronous pushing mechanism to push the impurities separated during the processing of the primary separation mechanism and the secondary processing mechanism into the interior of the mud discharge mechanism, and then uses the mud discharge mechanism to extrude and dehydrate the impurities, and discharges the impurities after dehydration, so that during the tunnel construction process, the treated water and separated impurities can be reused as needed.

[0018] 3. The present invention performs skid-mounting on the entire equipment so that the entire equipment can be quickly assembled on the construction site. The entire equipment can also be disassembled so that the desludging skid, water treatment skid, mud discharge skid and pump skid can be transported separately, saving transportation costs. The structures of the disassembled equipment are relatively small and more convenient for handling operations.

[0019] The above summary is for illustrative purposes only and is not limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural diagram of the present invention; Figure 2 It is a schematic cross-sectional structure diagram of the present invention from a first viewing angle; Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure of region A; Figure 4 For the present invention Figure 2 A schematic diagram of the enlarged structure of region B; Figure 5 is a schematic cross-sectional structural diagram of the present invention from a second viewing angle; Figure 6 This is an axonometric view of the desludging skid frame of the present invention; Figure 7 It is an axonometric view of the water treatment skid of the present invention; Figure 8 It is a schematic cross-sectional structural diagram of the water treatment skid frame of the present invention; Fig. 9 It is an isometric view of the cylindrical water-passing airbag of the present invention; Fig.10 It is an axonometric view of the mud removal skid frame of the present invention; Fig.11 is an axonometric view of the pump skid of the present invention; Fig.12 It is a side structural schematic diagram of the present invention.

[0022] Figure numerals: 1, skid assembly; 2, primary separation mechanism; 3, secondary treatment mechanism; 4, mud discharge mechanism; 5, synchronous pushing mechanism; 6, compression mechanism; 7, water guide mechanism; 8, pressure mechanism; 101, mud removal skid; 102, water treatment skid; 103, mud discharge skid; 104, pump skid; 201, mud removal tank; 202, spiral guide plate; 203, water diversion pipe; 204, external pipe; 205, sewage inlet pipe; 206, sewage discharge pipe; 301, water treatment tank; 302, support grid; 303, modified fiber ball; 304, water purification filter cartridge; 305, drainage pipe; 306, drainage valve; 307, cylindrical water-passing airbag; 401, first motor; 402, first auger column; 403, water-passing micropore; 404, Slide; 405, plug; 406, first spring; 407, mud discharge pipe; 408, branch pipe; 409, dewatering cylinder; 501, driving mechanism; 502, first pulley; 503, transmission belt; 504, second pulley; 505, second auger column; 506, third auger column; 507, water stirring frame; 511, mounting frame; 512, second motor; 513, gear; 601, electric push rod; 602, air storage cylinder; 603, piston plate; 604, air guide pipe; 701, water pump; 702, water guide connecting pipe; 703, water guide delivery pipe; 801, support frame; 802, sealing baffle; 803, guide shaft; 804, second spring; 91, recoil pipe; 92, sewage pump; 93, sewage guide pipe. DETAILED DESCRIPTION

[0023] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0024] It should be noted that the terms "first", "second", "symmetrical", "array", etc. are only used to distinguish between description and position description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the definition of "first", "symmetrical", etc. can explicitly or implicitly include one or more of these features; similarly, when the number of certain features is not limited in the form of words such as "two" or "three", it should be noted that this feature also explicitly or implicitly includes one or more feature quantities.

[0025] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0026] like Figure 1-Figure 12As shown, an embodiment of the present invention provides a tunnel construction wastewater separation and treatment device, including a skid assembly 1 and a primary separation mechanism 2, wherein the skid assembly 1 includes a desludging skid 101, a water treatment skid 102, a mud discharge skid 103 and a pump skid 104; Among them, the desludging skid 101 and the water treatment skid 102 are both installed on the upper surface of the desludging skid 103, the pump skid 104 is arranged on one side of the desludging skid 101, the primary separation mechanism 2 is installed on the top of the inner wall of the desludging skid 101, the secondary treatment mechanism 3 is installed on the top of the inner wall of the water treatment skid 102, the desludging mechanism 4 is installed on the top of the inner wall of the desludging skid 103, a synchronous pushing mechanism 5 and a water guiding mechanism 7 are installed between the primary separation mechanism 2 and the secondary treatment mechanism 3, and a pressure bearing mechanism 8 is installed at the bottom of the inner wall of the secondary treatment mechanism 3; The primary separation mechanism 2 includes a desludging tank 201, a spiral guide plate 202, a water diversion pipe 203, an external pipe 204, a sewage inlet pipe 205 and a sewage outlet pipe 206, and the synchronous pushing mechanism 5 includes a third auger column 506 and a water stirring frame 507; Among them, the demudification tank 201 is fixedly connected to the top of the inner wall of the demudification skid 101, the spiral guide plate 202 is fixedly connected to the inner wall of the demudification tank 201, the water diversion pipe 203 is fixedly connected to the top of the inner wall of the demudification tank 201, the third auger column 506 is arranged in the middle of the inner wall of the demudification tank 201, one end of the external pipe 204 is connected to the top of the outer wall of the water diversion pipe 203, and the other end of the external pipe 204 passes through the inner wall of the demudification tank 201. One end of the sewage inlet pipe 205 is connected to the top of the outer wall of the desludging tank 201, one end of the sewage discharge pipe 206 is connected to the bottom of the desludging tank 201, and the water stirring frame 507 is fixedly connected to the middle of the outer wall of the third auger column 506; a sewage pump 92 is installed at the bottom of the inner wall of the pump skid frame 104, and the discharge port of the sewage pump 92 is connected to a sewage guide pipe 93, and one end of the sewage guide pipe 93 passes through the inner wall of the pump skid frame 104 and is flange-connected to one end of the sewage inlet pipe 205.

[0027] In one embodiment, the secondary treatment mechanism 3 includes a water treatment tank 301, a support grid 302, modified fiber balls 303, a water purification filter cartridge 304, a drainage pipe 305, a drainage valve 306 and a cylindrical water-passing air bag 307; Among them, the water treatment tank 301 is fixedly connected to the top of the inner wall of the water treatment skid frame 102, the support frame 302 is fixedly connected to the middle of the inner wall of the water treatment tank 301, the outer wall of the cylindrical water-passing airbag 307 is fixedly connected to the inner wall of the support frame 302, the water purification filter cartridge 304 is arranged inside the support frame 302 and installed in the middle of the inner wall of the water treatment tank 301, the modified fiber ball 303 is filled between the water purification filter cartridge 304 and the cylindrical water-passing airbag 307, one end of the drainage pipe 305 is connected to the bottom of the water treatment tank 301, and one end of the drain valve 306 is connected to the bottom of the outer wall of the water treatment tank 301.

[0028] The solid particles remaining in the wastewater are intercepted by the water purification filter cartridge 304, and then the modified fiber balls 303 use their larger specific surface area and pore structure to intercept the suspended matter, colloids, organic matter and some heavy metal ions remaining in the wastewater. The support grid 302 is used to provide support for the outer side of the cylindrical water-passing airbag 307.

[0029] In one embodiment, the mud discharge mechanism 4 includes a first motor 401, a first auger column 402, a plurality of water-passing micro-holes 403, a slide 404, a plug column 405, a first spring 406, a mud discharge pipe 407, two branch pipes 408 and a dewatering cylinder 409; The dewatering cylinder 409 is fixedly connected to the top of the inner wall of the mud discharge skid frame 103, the first motor 401 is installed at one end of the dewatering cylinder 409, the first auger column 402 is arranged inside the dewatering cylinder 409, one end of the first auger column 402 is fixedly connected to the output shaft of the first motor 401, the slide 404 is fixedly connected to the other end of the dewatering cylinder 409, the outer wall of the plug column 405 is slidably connected to the inner wall of the dewatering cylinder 409 near one end of the slide 404, and the plug column 405 is connected to the inner wall of the dewatering cylinder 409 near the end of the slide 404. The inner wall of the column 405 is slidably connected to the outer wall of the slide 404, the first spring 406 is fixedly connected between the slide 404 and the plug column 405, the mud discharge pipe 407 is connected to the bottom of the outer wall of the dewatering cylinder 409 near one end of the slide 404, and the two branch pipes 408 are symmetrically connected to the top of the outer wall of the dewatering cylinder 409, one end of one branch pipe 408 is flange-connected to the sewage pipe 206, and one end of the other branch pipe 408 is flange-connected to the debris discharge pipe 305.

[0030] The output shaft of the first motor 401 drives the first auger column 402 to rotate, and the rotating first auger column 402 drives the mud and other solid particles collected in the dewatering cylinder 409 to move, so as to concentrate the mud and other solid particles on the plug column 405, and then the rotating first auger column 402 cooperates with the mud and other solid particles to squeeze one end of the plug column 405. When the pressure on the plug column 405 reaches the pressure limit of the first spring 406, the plug column 405 moves along the slide 404 under the action of pressure, and drives the first spring 406 to be compressed.

[0031] In one embodiment, the synchronous pushing mechanism 5 further includes a driving mechanism 501, a first pulley 502, a transmission belt 503, a second pulley 504 and a second auger column 505; Among them, the driving mechanism 501 is installed on one side of the upper surface of the water treatment tank 301, the first pulley 502 is installed in the middle of the upper surface of the water treatment tank 301, the second pulley 504 is installed in the middle of the upper surface of the desludging tank 201, the transmission belt 503 is sleeved on the second pulley 504 and the outer wall of the transmission belt 503, one end of the third auger column 506 passes through the inner wall of the desludging tank 201 and is fixedly connected to the inner wall of the second pulley 504, the second auger column 505 is arranged on the inner wall of the water purification filter cartridge 304, one end of the second auger column 505 passes through the inner wall of the water treatment tank 301 and is fixedly connected to the inner wall of the first pulley 502, and a plurality of water passing micropores 403 are opened on the outer walls of the first auger column 402 and the second auger column 505; The driving mechanism 501 is composed of a mounting frame 511, a second motor 512 and a gear 513; Among them, the mounting frame 511 is fixedly connected to one side of the upper surface of the water treatment tank 301, the second motor 512 is installed in the middle of the upper surface of the mounting frame 511, the gear 513 is rotatably connected between the upper surface of the water treatment tank 301 and the mounting frame 511, the output shaft of the second motor 512 is fixedly connected to one end of the gear 513, and the outer wall of the gear 513 is meshed with the bottom of the outer wall of the first pulley 502.

[0032] The output shaft of the second motor 512 drives the gear 513 to rotate, and the rotating gear 513 drives the first pulley 502 to rotate using the tooth pattern. The rotating first pulley 502 drives the second auger column 505 and the transmission belt 503 to move. The moving transmission belt 503 drives the second pulley 504 to rotate. The rotating second pulley 504 drives the water stirring frame 507 to rotate using the third auger column 506.

[0033] In one embodiment, the water guiding mechanism 7 includes a water pump 701, a water guiding connecting pipe 702 and a water guiding delivery pipe 703; Among them, the water pump 701 is installed in the middle of the inner wall of the water treatment skid frame 102, one end of the water connecting pipe 702 is flange-connected to one end of the external pipe 204, the other end of the water connecting pipe 702 is connected to the water inlet of the water pump 701, one end of the water delivery pipe 703 is connected to the drain outlet of the water pump 701, and the other end of the water delivery pipe 703 passes through the water treatment tank 301, the supporting grid 302, the cylindrical water-passing airbag 307, the inner wall of the modified fiber ball 303 and extends to the interior of the water purification filter cartridge 304.

[0034] The water pump 701 uses the water connecting pipe 702 to cooperate with the external pipe 204 to generate suction in the water pipe 203, so that the wastewater after the sediment is separated can be pumped out through the water pipe 203, and then the pumped wastewater is injected into the water purification filter cartridge 304 through the water delivery pipe 703.

[0035] In one embodiment, the pressure bearing mechanism 8 includes a support frame 801, a sealing baffle 802, a guide shaft 803 and a second spring 804; Among them, the support frame 801 is fixedly connected to the middle part of the inner wall of the exhaust pipe 305, the outer wall of the sealing baffle 802 is slidably connected to the bottom of the inner wall of the water treatment tank 301, one end of the guide shaft 803 is fixedly connected to the bottom of the sealing baffle 802, the outer wall of the guide shaft 803 is slidably connected to the inner wall of the support frame 801, the second spring 804 is sleeved on the outside of the guide shaft 803, and the second spring 804 is fixedly connected between the sealing baffle 802 and the support frame 801.

[0036] By utilizing the accumulated solid particles to squeeze the surface of the sealing baffle 802, when the pressure on the sealing baffle 802 reaches the bearing limit of the second spring 804, the sealing baffle 802 drives the guide shaft 803 and the second spring 804 to move under the action of pressure, and the moving guide shaft 803 slides in the support frame 801 to guide the sealing baffle 802, and the moving second spring 804 is compressed.

[0037] In one embodiment, a pressing mechanism 6 is installed on the top of the water treatment tank 301, and the pressing mechanism 6 includes an electric push rod 601, an air storage cylinder 602, a piston plate 603 and an air guide pipe 604; Among them, the electric push rod 601 is installed on one side of the upper surface of the water treatment tank 301, the air cylinder 602 is fixedly connected to one side of the top of the inner wall of the water treatment tank 301, the outer wall of the piston plate 603 is slidably connected to the inner wall of the air cylinder 602, the piston rod of the electric push rod 601 is fixedly connected to the top of the piston plate 603, one end of the air guide tube 604 is connected to the bottom of the air cylinder 602, the other end of the air guide tube 604 passes through the supporting frame 302 and is connected to the interior of the cylindrical water-passing air bag 307, and the top of the outer wall of the water treatment tank 301 is connected to a recoil pipe 91.

[0038] The piston plate 603 is pushed to reciprocate by the piston rod of the electric push rod 601. The moving piston plate 603 cooperates with the air guide tube 604 to squeeze the air in the air storage cylinder 602 into the interior of the cylindrical water-passing air bag 307, so that the cylindrical water-passing air bag 307 expands to squeeze the modified fiber ball 303, so as to squeeze out the impurities intercepted by it; the backwash pipe 91 is provided to inject backwash clean water into the water treatment tank 301.

[0039] When the present invention is working: first, according to actual needs, the mud removal skid frame 103 is installed as a whole at the specified position, and then the mud removal skid frame 101 and the water treatment skid frame 102 are assembled as a whole by hoisting, so that one end of the sewage pipe 206 and the impurity discharge pipe 305 are aligned with one end of the two branch pipes 408 at the same time, and one end of the external pipe 204 is aligned with one end of the water guide connecting pipe 702. After all alignment is completed, the bottom of the mud removal skid frame 101 and the water treatment skid frame 102 are fixed on the mud removal skid frame 103, and then the pump skid frame 104 is installed. Install it to one side of the mud discharge skid frame 103, align one end of the sewage pipe 93 with one end of the sewage inlet pipe 205, and then use bolts to connect the sewage pipe 93 and the sewage inlet pipe 205, the external pipe 204 and the water connecting pipe 702, the sewage pipe 206 and the branch pipe 408, and the debris discharge pipe 305 and the branch pipe 408 respectively, and put the transmission belt 503 between the first pulley 502 and the second pulley 504, and then connect the sewage pipe to the water inlet of the sewage pump 92 according to actual needs to complete the overall assembly operation of the equipment.

[0040] When it is necessary to treat the tunnel construction wastewater, the wastewater is pumped out through the sewage pump 92 in cooperation with the sewage pipe, and injected into the desludging tank 201 through the sewage pipe 93 in cooperation with the sewage inlet pipe 205, and then the incoming wastewater is guided by the spiral guide plate 202 to form a vortex in the desludging tank 201, so that the centrifugal force of the vortex can be used to move the silt carried in the wastewater outward and contact the inner wall of the desludging tank 201, so as to reduce the flow rate of the silt and gradually deposit it at the bottom of the desludging tank 201, so as to separate and treat the construction wastewater.

[0041] Then, the output shaft of the second motor 512 drives the gear 513 to rotate, and the rotating gear 513 drives the first pulley 502 to rotate by means of the tooth pattern, and the rotating first pulley 502 drives the second auger column 505 and the transmission belt 503 to move, and the moving transmission belt 503 drives the second pulley 504 to rotate, and the rotating second pulley 504 drives the water stirring frame 507 to rotate by means of the third auger column 506, and the rotating water stirring frame 507 drives the wastewater in the desludging tank 201 to move, so as to increase the speed at which the wastewater rotates in the desludging tank 201, and at the same time, the rotating third auger column 506 pushes the mud and sand deposited at the bottom of the desludging tank 201 and part of the wastewater into the dewatering cylinder 409, so as to prevent the mud and sand from accumulating at the bottom of the desludging tank 201 and affecting the separation effect.

[0042] The water pump 701 uses the water connecting pipe 702 to cooperate with the external pipe 204 to generate suction in the water pipe 203, so that the wastewater after the sediment is separated at the center of the vortex can be pumped out by the water pipe 203, and then the pumped wastewater is injected into the water purification filter cartridge 304 through the water conveying pipe 703, so that the solid particles remaining in the wastewater can be intercepted by the water purification filter cartridge 304, and then the modified fiber ball 303 uses its large specific surface area and pore structure to intercept the suspended matter, colloid, organic matter and some heavy metal ions remaining in the wastewater, so as to perform secondary purification treatment on the construction wastewater, so that the treated water can be put into the tunnel construction operation again, reducing the pollution to the surrounding environment, and then the drain valve 306 is opened to discharge the treated water in the water treatment tank 301 for use.

[0043] The solid particles intercepted in the water purification filter cartridge 304 are pushed to the bottom of the water treatment tank 301 by the rotating second auger column 505. When the solid particles are accumulated at the bottom of the inner wall of the water treatment tank 301, the rotating second auger column 505 uses the accumulated solid particles to squeeze the surface of the sealing baffle 802. When the pressure on the sealing baffle 802 reaches the bearing limit of the second spring 804, the sealing baffle 802 drives the guide shaft 803 and the second spring 804 to move under the action of the pressure. The moving guide shaft 803 passes through the support frame 80 1 to guide the sealing baffle 802, and the moving second spring 804 is compressed, so that the bottom of the water treatment tank 301 can be opened, so that the solid particles accumulated inside can be discharged into the interior of the dehydration cylinder 409 through the drainage pipe 305 and the branch pipe 408. When the accumulated solid particles are discharged and the pressure on the sealing baffle 802 is reduced, the compressed second spring 804 drives the sealing baffle 802 to reset, so as to block the bottom of the water treatment tank 301 and prevent the water in the water purification filter cartridge 304 from being directly discharged into the interior of the dehydration cylinder 409.

[0044] The output shaft of the first motor 401 drives the first auger column 402 to rotate, and the rotating first auger column 402 drives the silt and other solid particles collected in the dewatering cylinder 409 to move, so as to concentrate the silt and other solid particles on the plug column 405, and then the rotating first auger column 402 cooperates with the silt and other solid particles to squeeze one end of the plug column 405. When the pressure on the plug column 405 reaches the pressure limit of the first spring 406, the plug column 405 moves along the slide under the action of the pressure. 404 moves and drives the first spring 406 to be compressed. When the plug 405 moves to one side of the mud discharge pipe 407, the pressure is used to squeeze the dehydrated mud and other solid particles between the plug 405 and the first auger column 402 into the mud discharge pipe 407 so as to be discharged through the mud discharge pipe 407. The water-passing micropores 403 are arranged to ensure that during the squeezing process of mud or other solid particles, the squeezed water can flow directly through the first auger column 402 or the second auger column 505.

[0045] When the water purification filter cartridge 304 and the modified fiber ball 303 need to be cleaned after being used for a long time, the pump skid frame 104 is assembled with the water treatment skid frame 102, and one end of the sewage pipe 93 is connected with one end of the backwash pipe 91, and the drain valve 306 is closed, so that the sewage pump 92 cooperates with the sewage pipe 93 and the backwash pipe 91 to directly inject the extracted clean water into the water treatment tank 301, and then the injected water is used to backwash the modified fiber ball 303 and the water purification filter cartridge 304, and then the bottom of the water treatment tank 301 is opened by the pressure bearing mechanism 8 under the action of water pressure, so that the water treatment tank 301 can be discharged through the impurity discharge pipe 305. The water from the reverse flushing is discharged, and during the flushing process, the piston plate 603 can be pushed to reciprocate by the piston rod of the electric push rod 601. The moving piston plate 603 cooperates with the air guide tube 604 to squeeze the air in the air storage cylinder 602 into the interior of the cylindrical water-passing air bag 307, so that the cylindrical water-passing air bag 307 expands to squeeze the modified fiber ball 303, so as to squeeze out the impurities intercepted by it, and when the piston plate 603 is reset, the air in the cylindrical water-passing air bag 307 can be extracted by the air guide tube 604, so that the cylindrical water-passing air bag 307 is reset, so as to repeatedly squeeze the modified fiber ball 303, and cooperate with the reverse flushing water to clean the water purification filter cartridge 304.

[0046] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of various changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A tunnel construction wastewater separation and treatment device, comprising a skid assembly (1) and a primary separation mechanism (2), characterized in that: The skid assembly (1) comprises a desludging skid (101), a water treatment skid (102), a mud discharge skid (103) and a pump skid (104); The desludging skid (101) and the water treatment skid (102) are both mounted on the upper surface of the desludging skid (103); the pump skid (104) is arranged on one side of the desludging skid (101); the primary separation mechanism (2) is mounted on the top of the inner wall of the desludging skid (101); a secondary treatment mechanism (3) is mounted on the top of the inner wall of the water treatment skid (102); a desludging mechanism (4) is mounted on the top of the inner wall of the desludging skid (103); a synchronous pushing mechanism (5) and a water guiding mechanism (7) are mounted between the primary separation mechanism (2) and the secondary treatment mechanism (3); and a pressure bearing mechanism (8) is mounted on the bottom of the inner wall of the secondary treatment mechanism (3); The primary separation mechanism (2) comprises a desludging tank (201), a spiral guide plate (202) and a water diversion pipe (203), and the synchronous pushing mechanism (5) comprises a third auger column (506) and a water stirring frame (507); The demuding tank (201) is fixedly connected to the top of the inner wall of the demuding skid frame (101), the spiral guide plate (202) is fixedly connected to the inner wall of the demuding tank (201), the water guide pipe (203) is fixedly connected to the top of the inner wall of the demuding tank (201), the third auger column (506) is arranged in the middle of the inner wall of the demuding tank (201), and the water stirring frame (507) is fixedly connected to the middle of the outer wall of the third auger column (506).

2. The tunnel construction wastewater separation and treatment equipment according to claim 1 is characterized by: The primary separation mechanism (2) further comprises an external pipe (204), a sewage inlet pipe (205) and a sewage outlet pipe (206); One end of the external pipe (204) is connected to the top of the outer wall of the water diversion pipe (203), the other end of the external pipe (204) passes through the inner wall of the desludging tank (201), one end of the sewage inlet pipe (205) is connected to the top of the outer wall of the desludging tank (201), and one end of the sewage discharge pipe (206) is connected to the bottom of the desludging tank (201).

3. The tunnel construction wastewater separation and treatment equipment according to claim 2 is characterized by: The secondary treatment mechanism (3) comprises a water treatment tank (301), a support grid (302), modified fiber balls (303), a water purification filter cartridge (304), a drainage pipe (305), a drainage valve (306) and a cylindrical water-passing air bag (307); The water treatment tank (301) is fixedly connected to the top of the inner wall of the water treatment skid (102), the support grid (302) is fixedly connected to the middle of the inner wall of the water treatment tank (301), the outer wall of the cylindrical water-passing air bag (307) is fixedly connected to the inner wall of the support grid (302), the water purification filter cartridge (304) is arranged inside the support grid (302) and installed in the middle of the inner wall of the water treatment tank (301), the modified fiber balls (303) are filled between the water purification filter cartridge (304) and the cylindrical water-passing air bag (307), one end of the drainage pipe (305) is connected to the bottom of the water treatment tank (301), and one end of the drainage valve (306) is connected to the bottom of the outer wall of the water treatment tank (301).

4. The tunnel construction wastewater separation and treatment equipment according to claim 3 is characterized by: The mud discharge mechanism (4) comprises a first motor (401), a first auger column (402), a plurality of water-passing microholes (403), a slide frame (404), a plug column (405), a first spring (406), a mud discharge pipe (407), two branch pipes (408) and a dewatering cylinder (409); The dewatering cylinder (409) is fixedly connected to the top of the inner wall of the mud discharge skid frame (103); the first motor (401) is installed at one end of the dewatering cylinder (409); the first auger column (402) is arranged inside the dewatering cylinder (409); one end of the first auger column (402) is fixedly connected to the output shaft of the first motor (401); the slide (404) is fixedly connected to the other end of the dewatering cylinder (409); the outer wall of the plug column (405) is slidably connected to the inner wall of the dewatering cylinder (409) near one end of the slide (404); and the plug column The inner wall of the (405) is slidably connected to the outer wall of the slide (404), the first spring (406) is fixedly connected between the slide (404) and the plug (405), the mud discharge pipe (407) is connected to the bottom of the outer wall of the dewatering cylinder (409) close to one end of the slide (404), the two branch pipes (408) are symmetrically connected to the top of the outer wall of the dewatering cylinder (409), one end of one branch pipe (408) is flange-connected to the sewage discharge pipe (206), and one end of the other branch pipe (408) is flange-connected to the impurity discharge pipe (305).

5. The tunnel construction wastewater separation and treatment equipment according to claim 4 is characterized by: The synchronous pushing mechanism (5) further comprises a driving mechanism (501), a first belt pulley (502), a transmission belt (503), a second belt pulley (504) and a second auger column (505); The driving mechanism (501) is installed on one side of the upper surface of the water treatment tank (301), the first pulley (502) is installed in the middle of the upper surface of the water treatment tank (301), the second pulley (504) is installed in the middle of the upper surface of the desludging tank (201), the transmission belt (503) is sleeved on the outer wall of the second pulley (504) and the transmission belt (503), and one end of the third auger column (506) passes through the desludging tank (201). The inner wall of the water treatment tank (201) is fixedly connected to the inner wall of the second pulley (504), the second auger column (505) is arranged inside the water purification filter cartridge (304), one end of the second auger column (505) passes through the inner wall of the water treatment tank (301) and is fixedly connected to the inner wall of the first pulley (502), and a plurality of water-passing micropores (403) are provided on the outer walls of the first auger column (402) and the second auger column (505).

6. The tunnel construction wastewater separation and treatment equipment according to claim 5 is characterized by: The driving mechanism (501) is composed of a mounting frame (511), a second motor (512) and a gear (513); The mounting frame (511) is fixedly connected to one side of the upper surface of the water treatment tank (301); the second motor (512) is installed in the middle of the upper surface of the mounting frame (511); the gear (513) is rotatably connected between the upper surface of the water treatment tank (301) and the mounting frame (511); the output shaft of the second motor (512) is fixedly connected to one end of the gear (513); and the outer wall of the gear (513) is meshedly connected to the bottom of the outer wall of the first pulley (502).

7. The tunnel construction wastewater separation and treatment equipment according to claim 3 is characterized by: The water guiding mechanism (7) comprises a water pump (701), a water guiding connecting pipe (702) and a water guiding delivery pipe (703); The water pump (701) is installed at the middle of the inner wall of the water treatment skid (102), one end of the water guide connecting pipe (702) is flange-connected to one end of the external pipe (204), the other end of the water guide connecting pipe (702) is connected to the water inlet of the water pump (701), one end of the water guide delivery pipe (703) is connected to the drain outlet of the water pump (701), and the other end of the water guide delivery pipe (703) passes through the water treatment tank (301), the support grid (302), the cylindrical water-passing air bag (307), and the inner wall of the modified fiber ball (303) and extends to the interior of the water purification filter cartridge (304).

8. The tunnel construction wastewater separation and treatment equipment according to claim 3 is characterized by: The pressure-bearing mechanism (8) comprises a support frame (801), a sealing baffle (802), a guide shaft (803) and a second spring (804); The support frame (801) is fixedly connected to the middle of the inner wall of the impurity discharge pipe (305), the outer wall of the sealing baffle (802) is slidably connected to the bottom of the inner wall of the water treatment tank (301), one end of the guide shaft (803) is fixedly connected to the bottom of the sealing baffle (802), the outer wall of the guide shaft (803) is slidably connected to the inner wall of the support frame (801), the second spring (804) is sleeved on the outside of the guide shaft (803), and the second spring (804) is fixedly connected between the sealing baffle (802) and the support frame (801).

9. The tunnel construction wastewater separation and treatment equipment according to claim 2, characterized in that: A sewage pump (92) is installed at the bottom of the inner wall of the pump skid frame (104); the drainage port of the sewage pump (92) is connected to a sewage guide pipe (93); one end of the sewage guide pipe (93) passes through the inner wall of the pump skid frame (104) and is flange-connected to one end of the sewage inlet pipe (205).

10. The tunnel construction wastewater separation and treatment equipment according to claim 3, characterized in that: A compression mechanism (6) is installed on the top of the water treatment tank (301), and the compression mechanism (6) comprises an electric push rod (601), an air storage cylinder (602), a piston plate (603) and an air guide pipe (604); The electric push rod (601) is installed on one side of the upper surface of the water treatment tank (301), the air cylinder (602) is fixedly connected to one side of the top of the inner wall of the water treatment tank (301), the outer wall of the piston plate (603) is slidably connected to the inner wall of the air cylinder (602), the piston rod of the electric push rod (601) is fixedly connected to the top of the piston plate (603), one end of the air guide tube (604) is connected to the bottom of the air cylinder (602), the other end of the air guide tube (604) passes through the supporting grid (302) and is connected to the inside of the cylindrical water-passing air bag (307), and the top of the outer wall of the water treatment tank (301) is connected to a recoil pipe (91).

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