Sewage treatment device applied to road and bridge construction

Abstract

The invention belongs to the technical field of sludge waste treatment, and particularly relates to a sewage treatment device applied to road and bridge construction. Guide plates are symmetrically mounted in the treatment box, and a bottom plate body for supporting to-be-dewatered sludge is arranged under the guide plates; a dewatering channel is formed between the bottom plate body and the guide plate, and a pressing plate body is slidably arranged on the left side of the dewatering channel; a filter screen plate is installed at the position, aligned with the pressing plate body, of the right side wall of the treatment box, a collecting box is installed on the outer side of the filter screen plate, and the pressing plate body and the filter screen plate are connected with a driving sliding mechanism installed in the treatment box in the linear direction. A drying box is installed outside the right side of the treatment box, a moving channel is formed in the upper portion in the drying box, and the moving channel corresponds to the filter screen plate; a drying channel is formed below the drying box and extends to the inner bottom of the treatment box; according to the sludge dewatering and drying device, the surrounding environment cannot be polluted, and the sludge dewatering and drying efficiency can be improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of sludge waste treatment, and particularly relates to a sewage treatment device applied in road and bridge construction. Background Art

[0002] During the process of road and bridge construction, a large amount of sewage is generated, and a large amount of solid sludge and other wastes are mixed in the sewage. Therefore, if the sludge waste mixed in the sewage is not treated in time, it is easy to affect the surrounding environment.

[0003] Most of the existing equipment for treating sludge waste first dehydrates the sludge and then performs subsequent treatment. Most of the existing equipment for dehydrating sludge waste directly puts the precipitated sludge waste into a dehydration tank for extrusion dehydration or directly into a drying box for heating and drying. If direct extrusion dehydration is carried out, the dehydration and drying effect of the sludge will be affected. If direct drying treatment is carried out, since there is more sewage mixed in the sludge, the efficiency of sludge dehydration and drying will be affected. Summary of the Invention

[0004] To solve the above technical problems, the present invention is realized through the following technical solutions: The present invention is a sewage treatment device applied in road and bridge construction, including a treatment tank; Flow guide plates are symmetrically installed inside the treatment tank, and a bottom plate body for supporting the sludge to be dehydrated is arranged directly below the flow guide plates; A dehydration channel is formed between the bottom plate body and the flow guide plates, and a pressing plate body is slidably arranged on the left side of the dehydration channel; A filter screen plate is installed at the alignment position of the right side wall of the treatment tank and the pressing plate body, and a collection box is installed outside the filter screen plate. The pressing plate body and the filter screen plate are connected to a driving sliding mechanism installed in a straight line direction inside the treatment tank; A drying box is installed outside the right side of the treatment tank. A moving channel is formed above the drying box, and the moving channel corresponds to the filter screen plate; A drying channel is formed below the drying box, and the drying channel extends to the inner bottom of the treatment tank.

[0005] Furthermore, the driving sliding mechanism includes a lead screw member, a sleeve member, a ball nut pair, an electromagnetic ring, and a metal ring; The lead screw member is located inside the dehydration channel, and both ends of it are rotatably connected to the tank walls of the treatment tank and the drying box through bearings respectively; Sleeve members are fixedly arranged at the centers of the pressing plate body and the filter screen plate, and a ball nut pair is installed inside each sleeve member; An annular cavity is formed on the inner circumferential surface of the sleeve member, and an electromagnetic ring is installed on the inner cavity wall of the annular cavity in an insulating manner; The outer ring surface of the ball nut pair is insulated with a metal ring installed thereon. The metal ring is located in the annular cavity, and its outer ring surface is in contact with the inner ring surface of the electromagnetic ring.

[0006] Furthermore, the driving sliding mechanism further includes scraping blades. The ball nut pair located on the filter screen plate extends out of the sleeve part near the end of the pressing plate body, and scraping blades are installed in a circumferential array on the extended end of the ball nut pair. The inner ends of the plurality of scraping blades are attached to the surface of the filter screen plate, and their outer ends extend out of the outer end of the ball nut pair.

[0007] Furthermore, the diversion plate is swingably installed in the treatment box through a moving adjustment mechanism. The moving adjustment mechanism includes a hinge post, rollers, elastic racks, meshing gears, and a shaft rod; U-shaped guide grooves are formed on the front and rear inner side walls of the treatment box, and the vertical grooves on both sides of the U-shaped guide groove are close to the left and right side walls of the treatment box, while the bottom groove of the U-shaped guide groove is located above the bottom plate body; Hinge posts are installed at positions near the ends on the front and rear sides of the diversion plate, and rollers are sleeved on each hinge post; The front and rear groups of symmetric rollers respectively slide along the trajectories of the front and rear two U-shaped guide grooves; Two elastic racks are symmetrically installed in each U-shaped guide groove, and both ends of each elastic rack are respectively connected to the two rollers on the same side; A driving cavity is formed at the connection of the vertical groove and the horizontal groove of the U-shaped guide groove, and a meshing gear is rotatably installed in the driving cavity through a shaft rod. The meshing gear meshes with the elastic rack with downward-facing teeth.

[0008] Furthermore, the moving adjustment mechanism further includes guide rail blocks, metal sheets, and electromagnetic conduction strips. A guide rail groove is formed on the groove wall of the U-shaped guide groove that fits with the elastic rack, and the width of the guide rail groove is smaller than the width of the elastic rack. A plurality of guide rail blocks are installed on the side wall of the elastic rack that fits with the U-shaped guide groove, and the plurality of guide rail blocks are located in the guide rail groove. A metal sheet is insulatedly installed on the end face of each guide rail block, and an electromagnetic conduction strip is insulatedly installed on the groove wall of the guide rail groove, and the electromagnetic conduction strip is in contact with the plurality of metal sheets.

[0009] Furthermore, the moving adjustment mechanism further includes sliding blocks and spring members. A sliding guide groove is formed at the position of the diversion plate corresponding to the hinge post. The hinge post is slidably inserted into the sliding guide groove through the sliding block, and both side faces of the sliding block are connected to the groove wall of the sliding guide groove through spring members.

[0010] Furthermore, a horizontal plate is fixedly installed inside the drying box and above the drying channel, and a blanking channel is formed between the end of the horizontal plate and the side wall of the treatment box. A sealing plate is slidably arranged on the upper surface of the horizontal plate, and the sealing plate is communicated with the inside of the collection box through a conduction pipe. The conduction pipe is communicated with a communication pipe fixedly installed on the side wall of the drying box through an elastic hose.

[0011] Further, a through guide groove is formed in the horizontal plate along its length direction. A suspension block is slidably arranged in the through guide groove. A sealing insertion plate is slidably attached to the lower surface of the horizontal plate, and the sealing insertion plate is connected to the suspension block. The upper surface of the suspension block is connected to the sealing plate, and the sealing insertion plate is slidably inserted into the blanking channel.

[0012] Further, a spiral blade is rotatably installed in the drying channel, and the shaft rod of the spiral blade is rotatably installed on both side walls of the drying channel through bearings. A discharge slot hole is formed in the left side wall of the drying channel, and an openable bin door is installed on the discharge slot hole.

[0013] Further, an elastic membrane tube is sleeved on the screw rod member, and both ends of the elastic membrane tube are respectively connected to two ball nut pairs. A segmented sealing membrane is slidably arranged in the U-shaped guide groove, and each segment of the sealing membrane is respectively connected to the roller and the groove wall of the U-shaped guide groove.

[0014] The present invention has the following beneficial effects: 1. By integrally integrating the dewatering and drying of sludge, the sliding of the pressing plate body can perform preliminary dewatering treatment on the put-in sludge. When the filter screen plate slides open, the pressing plate body will slide and push the extruded sludge into the drying channel, so that the extruded sludge will be directly transferred to the drying channel in a sealed environment for drying treatment, which will not pollute the surrounding environment and can improve the dewatering and drying efficiency of the sludge.

[0015] 2. By meshing and matching two inclined guide plates through two groups of symmetric elastic racks and meshing gears, the position of the blanking channel formed between the symmetric guide plates above the bottom plate body can be adjusted, so that the sludge entering the treatment box will evenly fall onto the bottom plate body, and there will be no phenomenon of local accumulation of the falling sludge above the bottom plate body, enabling the sludge on the bottom plate body to be accurately and quickly dewatered. When the falling sludge is guided by the guide plate, the intermittent swinging of the guide plate can be controlled, thereby facilitating the acceleration of the efficiency of the falling sludge entering above the bottom plate body.

[0016] 3. The articulated column is slidably installed in the sliding guide groove 21 formed on the side surface of the guide plate through the sliding block. When the guide plate slides to the horizontal state, the sliding block connected to the articulated rod will slide in the sliding guide groove 21 at this time, and the spring member will be compressed or stretched, so that the inclined guide plate can accurately and stably slide to the horizontal state, realizing the sealing of the dewatering channel. When the pressing plate body squeezes and dehydrates the sludge, since there is no sealing plate or other structures above the dewatering channel between the pressing plate body and the filter screen body, when the sludge is squeezed and dehydrated, the scattered flow of the sludge in the extrusion channel will enter the space above the pressing plate body or cross over the pressing plate body and enter the space on its left side, which will affect the accurate and quick dewatering treatment of the sludge by the pressing plate body and also requires manual cleaning by the operator.

[0017] Of course, it is not necessary for any product implementing the present invention to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 Schematic diagram of the overall structure disclosed by the present invention; Figure 2 Schematic diagram of the internal structure of the processing box disclosed by the present invention; Figure 3 Cooperating state diagram of the flow guide plate and the moving adjustment mechanism disclosed by the present invention; Figure 4 Schematic diagram of the structure of the flow guide plate disclosed by the present invention; Figure 5 Schematic diagram of the cooperating structure of the scraping blade and the filter screen plate disclosed by the present invention; Figure 6 Schematic diagram of the internal structure of the drying box disclosed by the present invention; Figure 7 Cross-sectional view of the filter screen plate disclosed by the present invention.

[0020] In the figure: 1. Processing box; 101. Dehydration channel; 102. U-shaped guide groove; 103. Discharge slot hole; 2. Flow guide plate; 21. Sliding guide groove; 3. Bottom plate body; 4. Pressing plate body; 5. Filter screen plate; 51. Collection box; 52. Conducting pipe; 53. Elastic hose; 54. Connecting pipe; 6. Driving sliding mechanism; 61. Lead screw member; 62. Sleeve member; 63. Ball screw nut pair; 64. Electromagnetic ring; 65. Metal ring; 66. Scraping blade; 7. Moving adjustment mechanism; 71. Hinge column; 72. Roller; 73. Elastic rack; 74. Meshing gear; 75. Shaft rod; 76. Guide rail block; 77. Metal sheet; 78. Electromagnetic suction strip; 79. Sliding block; 791. Spring member; 8. Drying box; 81. Drying channel; 82. Horizontal plate; 821. Through guide groove; 83. Sealing plate; 84. Suspension block; 85. Sealing plug board; 9. Spiral blade; 10. Elastic membrane tube. Detailed implementation mode

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating the orientation or position relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present invention.

[0023] Please refer to Figures 1-7 As shown, the present invention is a sewage treatment device applied in road and bridge construction, including a treatment tank 1; flow guiding plates 2 are symmetrically installed inside the treatment tank 1, and a bottom plate body 3 for supporting the sludge to be dewatered is arranged directly below the flow guiding plates 2; a dewatering channel 101 is formed between the bottom plate body 3 and the flow guiding plates 2, and a pressing plate body 4 is slidably arranged on the left side of the dewatering channel 101; a filter screen plate 5 is installed at the alignment position of the right side wall of the treatment tank 1 and the pressing plate body 4, and a collection box 51 is installed outside the filter screen plate 5. The pressing plate body 4 and the filter screen plate 5 are connected to a driving sliding mechanism 6 installed in a straight line direction inside the treatment tank 1; a drying box 8 is installed outside the right side of the treatment tank 1. A moving channel is formed above the drying box 8, and the moving channel corresponds to the filter screen plate 5; a drying channel 81 is formed below the drying box 8, and the drying channel 81 extends to the inner bottom of the treatment tank 1; Specifically, the present invention integrally sets a sludge extrusion dehydration device and a drying device. The sludge mixed in the sewage is first precipitated in a sedimentation tank, and the precipitated sludge waste is transported into the treatment tank 1. It will enter the dehydration channel 101 through the guide plate 2. When a certain amount of sludge has fallen into the dehydration channel 101, the entry of sludge is stopped at this time. Then, the driving sliding mechanism 6 drives the pressing plate body 4 to slide on the upper surface of the bottom plate body 3 towards the filter plate 5, so as to realize the extrusion dehydration treatment of the sludge above the bottom plate body 3. The sewage mixed in the sludge will enter the collection box 51 through the filter plate 5 for collection. When the sludge is extruded to a certain extent, the driving sliding mechanism 6 drives the filter plate 5 and the pressing plate body 4 to slide synchronously towards the drying box 8, so that the filter plate 5 enters the drying box 8, and the sliding of the pressing plate body 4 will push the extruded sludge to fall into the lower drying channel 81. The heating component in the drying channel 81 dries the dehydrated sludge, and the dried sludge is discharged through the discharge slot on the left side; Compared with the prior art, most of the traditional equipment for dehydrating sludge first puts the precipitated sludge into an extrusion dehydration or centrifugal dehydration device for preliminary dehydration treatment, and then transfers the dehydrated sludge to other drying devices for drying treatment. Obviously, this method requires operators to transfer the sludge frequently, which will not only cause pollution to the surrounding environment, but also affect the efficiency of sludge dehydration and drying treatment. In this solution, by integrally setting the dehydration and drying of sludge, the sliding of the pressing plate body 4 can perform preliminary dehydration treatment on the put-in sludge, and the opening of the sliding of the filter plate 5 will also enable the pressing plate body 4 to slide and push the extruded sludge into the drying channel 81, so that the extruded sludge will directly be transferred to the drying channel 81 for drying treatment in a sealed environment, which will not only cause pollution to the surrounding environment, but also improve the dehydration and drying efficiency of the sludge.

[0024] In this embodiment, the driving sliding mechanism 6 includes a screw member 61, a sleeve member 62, a ball nut pair 63, an electromagnetic ring 64 and a metal ring 65; the screw member 61 is located in the dehydration channel 101, and its two end portions are respectively rotatably connected to the box walls of the treatment tank 1 and the drying box 8 through bearings; sleeve members 62 are fixedly provided at the centers of the pressing plate body 4 and the filter plate 5, and a ball nut pair 63 is installed in each sleeve member 62; an annular cavity is formed on the inner circumferential surface of the sleeve member 62, and an electromagnetic ring 64 is insulatively installed on the inner cavity wall of the annular cavity; a metal ring 65 is insulatively installed on the outer circumferential surface of the ball nut pair 63, and the metal ring 65 is located in the annular cavity, and its outer circumferential surface is in contact with the inner circumferential surface of the electromagnetic ring 64; Specifically, driven by a servo motor fixedly installed on the right side of the drying box 8, the lead screw member 61 can rotate within the dehydration channel 101. When it is necessary for the pressing plate body 4 to slide within the dehydration channel 101, at this time, the electromagnetic suction block installed on the inner circumferential surface of the corresponding electromagnetic ring 64 on the filter screen plate 5 is powered off. The working principle of this electromagnetic suction block is the same as that of an existing electromagnetic chuck, causing it to release the adsorption and fixation of the metal ring 65. Furthermore, the rotation of the lead screw member 61 will only drive the pressing plate body 4 to slide on the upper surface of the bottom plate body 3 through the cooperation of the corresponding ball screw pair 63 and the sleeve member 62 on the pressing plate body 4, achieving the extrusion treatment of the put sludge; when it is necessary for the pressing plate body 4 and the filter screen plate 5 to slide synchronously, at this time, the two ball screw pairs 63 and the two sleeve members 62 are synchronously connected, so that the rotation of the lead screw member 61 drives the pressing plate body 4 and the filter screen plate 5 to slide synchronously, causing the filter screen plate 5 to disengage from the through groove on the side of the treatment box 1, while the pressing plate body 4 will push the extruded sludge down into the drying box 8 for drying treatment; when all the sludge on the bottom plate body 3 is pushed out, the reverse rotation of the lead screw member 61 will drive the filter screen plate 5 and the pressing plate body 4 to slide leftward within the dehydration channel 101. When the filter screen plate 5 slides and inserts into the through groove of the treatment box 1 for sealing, at this time, the ball screw pair 63 and the sleeve member 62 on the filter screen plate 5 are disengaged, and the continuous rotation of the lead screw member 61 will drive the pressing plate body 4 to continue to slide within the drying channel 81 to the initial position, thus facilitating the extrusion and dehydration treatment of the next put sludge; Compared with the prior art, in the traditional structure for squeezing and dehydrating sludge, most of them make the filter screen plate 5 slide on the bottom plate to squeeze and dehydrate the sludge, and then open the hinged bottom plate to discharge the extruded sludge for drying. Obviously, this method will not only cause the squeezed sewage to enter the space between the filter screen plate 5 and the power source, resulting in its pollution, but also when the bottom plate is hinged and opened, some sludge will enter the gap between the filter screen plate 5 and the bottom plate, which will affect the normal discharge of the extruded sludge. Moreover, the power sources for driving the filter screen plate 5 or the pressing plate to slide mostly use electric telescopic rods or hydraulic rods. Therefore, it is inevitable that the sludge dehydration equipment will occupy a large space; while in this solution, the filter screen plate 5 is slid and inserted onto the treatment box 1, so that when the filter screen plate 5 is in a fixed state, the squeezed sewage will directly enter the collection box 51, without causing pollution to the squeezed sewage. The extruded sludge is discharged through the slid and opened filter screen plate 5 and enters below the bottom plate body 3. Therefore, it will not occur that the extruded sludge enters the left side of the pressing plate body 4 and cannot be quickly and accurately discharged. The filter screen plate 5 and the pressing plate body 4 are driven to slide by the same lead screw member 61 located within the dehydration channel 101. Therefore, not only will this solution not make the sewage treatment equipment occupy a large space, but it can also achieve the conversion and sliding of the pressing plate body 4 or the filter screen plate 5.

[0025] In this embodiment, the driving and sliding mechanism 6 further includes a scraping blade 66. The end of the ball nut pair 63 located on the filter screen plate 5 near the pressing plate body 4 extends outside the sleeve member 62, and scraping blades 66 are circumferentially arranged on the extended end of the ball nut pair 63. The inner ends of the plurality of scraping blades 66 are in contact with the surface of the filter screen plate 5, and their outer ends extend outside the outer end of the ball nut pair 63. Specifically, when the pressing plate body 4 slides on the bottom plate body 3 to dehydrate the sludge, since the ball nut pair 63 located on the filter screen plate 5 rotates freely at this time, the rotation of the ball nut pair 63 will drive the plurality of scraping blades 66 to rotate, enabling them to scrape and clean the sludge adhered to the surface of the filter screen plate 5 to prevent the sludge from clogging the mesh holes of the filter screen plate 5. After the extruded sludge falls into the drying channel 81 through the opened filter screen plate 5, at this time, the ball nut pair 63 on the pressing plate body 4 is disconnected from the sleeve member 62, causing the filter screen plate 5 to slide towards the pressing plate body 4, making the outer ends of the plurality of scraping blades 66 in contact with the pressing plate body 4. Then, the ball nut pair 63 corresponding to the filter screen plate 5 is disconnected from the sleeve member 62. Further, the rotation of the screw member 61 will drive the ball nut pair 63 to rotate, causing the corresponding scraping blade 66 to rotate to scrape the sludge adhered to the surface of the pressing plate body 4 and drop it into the drying channel 81 below. Through the above technical solution, in this application, when the corresponding ball nut pair 63 located on the filter screen plate 5 rotates freely, the plurality of scraping blades 66 can not only scrape and clean the sludge adhered to the surface of the filter screen plate 5 during extrusion, but also when the extruded sludge is discharged and falls into the drying channel 81, the plurality of scraping blades 66 can also be in contact with the surface of the pressing plate body 4 to scrape and clean the sludge adhered and remaining on the surfaces of the filter screen plate 5 and the pressing plate body 4, preventing a large amount of dehydrated sludge from remaining on the filter screen plate 5 or the pressing plate body 4.

[0026] In this embodiment, the diversion plate 2 is swingably installed in the processing tank 1 through a moving and adjusting mechanism 7. The moving and adjusting mechanism 7 includes a hinge column 71, a roller 72, an elastic rack 73, a meshing gear 74, and a shaft rod 75. U-shaped guide grooves 102 are formed on the front and rear inner side walls of the processing tank 1, and the vertical grooves on both sides of the U-shaped guide grooves 102 are close to the left and right side walls of the processing tank 1, while the bottom groove of the U-shaped guide grooves 102 is located above the bottom plate body 3. Hinge columns 71 are installed at positions near the ends on the front and rear sides of the diversion plate 2, and a roller 72 is sleeved on each hinge column 71. The front and rear two groups of symmetric rollers 72 slide along the trajectories of the front and rear two U-shaped guide grooves 102 respectively. Two elastic racks 73 are symmetrically installed in each U-shaped guide groove 102, and both ends of each elastic rack 73 are respectively connected to the two rollers 72 on the same side. A driving cavity is formed at the connection of the vertical groove and the horizontal groove of the U-shaped guide groove 102, and a meshing gear 74 is rotatably installed in the driving cavity through a shaft rod 75. The meshing gear 74 meshes with the elastic rack 73 with its teeth facing downwards. Specifically, by controlling the drive of the servo motor connected to the shaft rod 75, a plurality of meshing gears 74 can drive a plurality of elastic racks 73 to slide within the U-shaped guide groove 102. Since both ends of the same elastic rack 73 are respectively connected to the rollers 72, and the two rollers 72 on the front and rear sides of the same deflector 2 are respectively located in the vertical groove and the horizontal groove of the U-shaped guide groove 102. Therefore, when the elastic rack 73 slides into the horizontal groove of the U-shaped guide groove 102, at this time, the elastic rack 73 will pull the roller 72 located in the vertical groove to slide downward in the vertical groove, and the roller 72 located in the horizontal groove will slide towards its center. Furthermore, the inclination angle between the two symmetric deflectors 2 can be reduced, the distance between the mutually approaching ends of the two deflectors 2 is reduced, so that the discharged sludge will only fall to the center of the dehydration channel 101. When the front and rear two elastic racks 73 on the left side slide into the vertical groove of the U-shaped guide groove 102, at this time, the bottom end of the deflector 2 on the left side will slide towards the left side wall of the treatment tank 1, and the bottom end of the deflector 2 on the right side can be controlled to slide towards the middle of the treatment tank 1, so that the position between the two deflectors 2 will be at the left side inside the treatment tank 1, and the sludge entering the treatment tank 1 will first fall from the left side to the bottom plate body 3, and there will be no phenomenon that the falling sludge accumulates locally above the bottom plate body 3. Thus, the sludge located on the bottom plate body 3 can be accurately and quickly squeezed and dehydrated. When the falling sludge is guided by the deflector 2, the intermittent swing of the deflector 2 can be controlled, thereby facilitating the improvement of the efficiency of the falling sludge entering above the bottom plate body 3; Compared with the prior art, most of the traditional deflectors 2 are in a fixed state. Although they can swing, they only swing obliquely around a point and cannot adjust the position of the oblique swing of the deflector 2. As a result, it is easy to cause the phenomenon that the sludge falling into the dehydration tank accumulates locally in the dehydration tank, which will affect the accuracy and efficiency of sludge dehydration treatment. In this solution, the two inclined deflectors 2 are engaged and matched through two groups of symmetric elastic racks 73 and meshing gears 74, and the position of the material falling channel formed between the symmetric deflectors 2 above the bottom plate body 3 can be adjusted, so that the sludge entering the treatment tank 1 will evenly fall onto the bottom plate body 3, and there will be no phenomenon that the falling sludge accumulates locally above the bottom plate body 3. Thus, the sludge located on the bottom plate body 3 can be accurately and quickly squeezed and dehydrated. When the falling sludge is guided by the deflector 2, the intermittent swing of the deflector 2 can be controlled, thereby facilitating the improvement of the efficiency of the falling sludge entering above the bottom plate body 3.

[0027] In this embodiment, the movable adjustment mechanism 7 further includes a guide rail block 76, a metal sheet 77 and an electromagnetic suction strip 78. A guide rail groove begins at the groove wall where the U-shaped guide groove 102 and the elastic rack 73 are in contact with each other, and the width of the guide rail groove is smaller than the width of the elastic rack 73. A plurality of guide rail blocks 76 are installed on the side wall where the elastic rack 73 and the U-shaped guide groove 102 are in contact with each other, and the plurality of guide rail blocks 76 are located in the guide rail groove. The end surface of each guide rail block 76 is insulated and installed with a metal sheet 77. The groove wall of the guide rail groove is insulated and installed with an electromagnetic suction strip 78, and the electromagnetic suction strip 78 is in contact with the plurality of metal sheets 77. Specifically, in order to prevent the adjusted guide plate 2 from shaking in a large range under the impact of falling sludge, thereby affecting the normal use of the guide plate 2, when the guide plate 2 is adjusted, the electromagnetic suction strip 78 is energized. The electromagnetic suction strip 78 has the same principle as the existing electromagnetic suction cup, so that it has a magnetic adsorption force to adsorb and fix the metal sheet 77, and then the elastic rack 73 can be adsorbed and fixed through the guide rail block 76, so that the two rollers 72 on the same side are in a fixed state, preventing the guide plate 2 from shaking when guiding the falling sludge. The impact force of the sludge causes the guide plate 2 to be in a relatively horizontal state, which in turn affects the accurate falling of the sludge into the dewatering channel 101. When the guide plate 2 needs to be adjusted, the electromagnetic suction strip 78 is controlled to be powered off to separate it from the adsorption and fixation on the metal sheet 77, so that the sliding elastic rack 73 can drive the roller 72 to slide in the U-shaped guide groove 102, and the guide rail block 76 will also slide in the guide rail groove, so that the sliding elastic rack 73 will not be separated from the U-shaped guide groove 102, thereby improving the stability and safety of the tilting and swinging adjustment of the guide plate 2.

[0028] In this embodiment, the movable adjustment mechanism 7 further includes a sliding block 79 and a spring member 791. A sliding guide groove 21 is provided at a position corresponding to the hinge column 71 of the guide plate 2. The hinge column 71 is slidably inserted into the sliding guide groove 21 through the sliding block 79. The side surface of the sliding block 79 is connected to the groove wall of the sliding guide groove 21 through the spring member 791. Specifically, when a sufficient amount of sludge to be dewatered enters the bottom plate body 3, at this time, the symmetrical guide plates 2 can be controlled to swing to a horizontal state, and the two close ends thereof are made to fit and seal with each other. At this time, the rollers 72 located in the vertical grooves of the U-shaped guide grooves 102 will slide into the communication part of the horizontal groove and the vertical groove. The installation position of the meshing gears 74 will not interfere with the normal sliding of the rollers 72 located in the vertical grooves. When the guide plates 2 slide to the horizontal state, the sliding blocks 79 connected to the hinge rods will slide in the sliding guide grooves 21, and the spring members 791 will be compressed or stretched. Thus, the inclined guide plates 2 can accurately and stably slide to the horizontal state, realizing the sealing of the dehydration channel 101. When the pressing plate body 4 squeezes and dehydrates the sludge, since there is no structure such as a sealing plate 83 above the dehydration channel 101 between the pressing plate body 4 and the filter screen body, when the sludge is squeezed and dehydrated, the scattered flow of the sludge in the squeezing channel will enter the space above the pressing plate body 4 or cross over the pressing plate body 4 and enter the space on its left side. This will affect the accurate and rapid dehydration treatment of the sludge by the pressing plate body 4, and manual cleaning by the operator is also required. When the guide plates 2 slide and swing in an inclined state, the cooperation of the sliding blocks 79 and the spring members 791 will enable the rollers 72 on the top side of the guide plates 2 to slide freely in the vertical grooves, thus facilitating the sliding adjustment of the guide plates 2 in different inclined states to realize the guiding of the sludge. It should be noted that elastic sealing strips are provided at the top ends of the guide plates 2. On the premise of not interfering with the swing of the guide plates 2 to the horizontal state, the two guide plates 2 in the horizontal state can be closely attached to the box wall of the treatment box 1 through the elastically compressed elastic sealing strips at their far ends.

[0029] In this embodiment, a horizontal plate 82 is fixedly provided inside the drying box 8 and above the drying channel 81. A blanking channel is formed between the end of the horizontal plate 82 and the side wall of the treatment box 1. A sealing plate 83 is slidably provided on the upper surface of the horizontal plate 82, and the sealing plate 83 is internally connected to the collection box 51 through a conduction pipe 52. The conduction pipe 52 is connected to a communication pipe 54 fixedly provided on the side wall of the drying box 8 through an elastic hose 53. Specifically, when the pressing plate body 4 slides to squeeze and dehydrate the sludge, the sewage that enters the collection box 51 at this time will be discharged outside the drying box 8 through the conduction pipe 52, the elastic hose 53 and the communication pipe 54 for centralized collection and treatment. When the filter screen plate 5 slides into the drying box 8, at this time, the conduction pipe 52 will push the sealing plate 83 to slide on the upper surface of the horizontal plate 82. At this time, the cooperation of the conduction pipe 52 and the sliding sealing plate 83 can play a role of sliding support for the sliding filter screen plate 5, and the sliding sealing plate 83 will compress the elastic hose 53 so that it will not interfere with the normal sliding of the filter screen plate 5. When the filter screen plate 5 and the collection box 51 slide onto the horizontal plate 82, at this time, the horizontal plate 82 can support and limit the stopped sliding filter screen plate 5, so that the pressing plate body 4 continues to slide to push and discharge the squeezed and dehydrated sludge.

[0030] In this embodiment, a through guide groove 821 is formed in the horizontal plate 82 along its length direction. A suspension block 84 is slidably arranged in the through guide groove 821. A sealing plug plate 85 is slidably attached to the lower surface of the horizontal plate 82, and the sealing plug plate 85 is connected to the suspension block 84. The upper surface of the suspension block 84 is connected to the sealing plate 83, and the sealing plug plate 85 is slidably inserted into the blanking channel. Specifically, when the filter screen plate 5 slides towards the horizontal plate 82, at this time, the sealing plate 83 will drive the sealing plug plate 85 to disengage from the blanking channel formed between the drying box 8 and the drying channel 81 through the suspension block 84, so as to facilitate opening the blanking channel, so that the sliding of the pressing plate body 4 can push the squeezed and dehydrated sludge to quickly fall into the drying channel 81. Since the through guide groove 821 is formed through the horizontal plate 82 up and down, and both ends are closed, therefore, when the filter screen plate 5 slides and is inserted into the through groove on the side wall of the processing box 1, at this time, the suspension block 84 will slide to fit against the left end wall of the through guide groove 821, and the sealing plug plate 85 will completely seal the blanking channel, so that the heat generated in the drying channel 81 will not rise through the blanking channel and cause heat loss. The cooperation of the suspension block 84 and the sealing plate 83 can play a role of limiting, guiding and supporting the sliding and inserted filter screen plate 5, preventing the filter screen plate 5 from completely entering the processing box 1 and affecting the squeezing and dehydration treatment of the subsequently put sludge.

[0031] In this embodiment, a spiral blade 9 is rotatably installed in the drying channel 81, and the shaft rod 75 of the spiral blade 9 is rotatably installed on both side walls of the drying channel 81 through bearings. A discharge slot hole 103 is formed in the left side wall of the drying channel 81, and an openable hatch is installed on the discharge slot hole 103. Specifically, the spiral blade 9 rotates in the drying channel 81 driven by a servo motor fixedly installed outside the drying box 8. It can not only evenly convey the squeezed and dewatered sludge falling into the drying channel 81, but also discharge and collect the dried sludge through the discharge chute holes 103. When the door is opened, the dried sludge can be conveyed and discharged through the spiral blade 9.

[0032] In this embodiment, an elastic membrane tube 10 is sleeved on the lead screw member 61, and both ends of the elastic membrane tube 10 are respectively connected to two ball nut pairs 63. A segmented sealing membrane is slidably arranged in the U-shaped guide groove 102, and each segment of the sealing membrane is respectively connected to the roller 72 and the groove wall of the U-shaped guide groove 102. Specifically, the design of the elastic membrane tube 10 and the segmented sealing membrane can seal the lead screw member 61 and the U-shaped guide groove 102, preventing a large amount of sludge from adhering to the lead screw member 61 or entering the U-shaped guide groove 102, which would otherwise affect the sliding of the pressing plate body 4 or the swing adjustment of the deflector 2.

[0033] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0034] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A sewage treatment device applied in road and bridge construction, characterized in that It includes a processing box; Flow guiding plates are symmetrically installed inside the processing box, and a bottom plate body for supporting the sludge to be dewatered is arranged directly below the flow guiding plates; A dehydration channel is formed between the bottom plate body and the flow guiding plates, and a pressing plate body is slidably arranged on the left side of the dehydration channel; A filter screen plate is installed at the alignment position of the right side wall of the processing box and the pressing plate body, and a collection box is installed outside the filter screen plate. The pressing plate body and the filter screen plate are connected to a driving and sliding mechanism installed in a straight line direction inside the processing box; A drying box is installed outside the right side of the processing box. A moving channel is formed above the drying box, and the moving channel corresponds to the filter screen plate; A drying channel is formed below the drying box, and the drying channel extends to the inner bottom of the processing box.

2. The sewage treatment device applied in road and bridge construction according to claim 1, characterized in that, The driving and sliding mechanism includes a lead screw member, a sleeve member, a ball nut pair, an electromagnetic ring and a metal ring; The lead screw member is located inside the dehydration channel, and its two end portions are respectively rotatably connected to the box walls of the processing box and the drying box through bearings; Sleeve members are fixedly arranged at the centers of the pressing plate body and the filter screen plate, and a ball nut pair is installed inside each sleeve member; An annular cavity is formed on the inner circumferential surface of the sleeve member, and an electromagnetic ring is installed on the inner cavity wall of the annular cavity in an insulating manner; A metal ring is installed on the outer circumferential surface of the ball nut pair in an insulating manner, and the metal ring is located inside the annular cavity, and its outer circumferential surface is in contact with the inner circumferential surface of the electromagnetic ring.

3. The sewage treatment device applied in the construction of a road and bridge according to claim 2, characterized in that The driving and sliding mechanism further includes scraping blades. The end portion of the ball nut pair located on the filter screen plate close to the pressing plate body extends outside the sleeve member, and scraping blades are circumferentially arranged on the extended end portion of the ball nut pair. The inner ends of the plurality of scraping blades are attached to the surface of the filter screen plate, and their outer ends extend outside the outer end portion of the ball nut pair.

4. The sewage treatment device applied in road and bridge construction according to claim 2, characterized in that, The flow guiding plates are swingably installed inside the processing box through a moving and adjusting mechanism. The moving and adjusting mechanism includes a hinge column, a roller, an elastic rack, a meshing gear and a shaft rod; U-shaped guide grooves are formed on the front and rear inner side walls of the processing box. The two vertical grooves of the U-shaped guide grooves are close to the left and right side walls of the processing box, and the bottom groove of the U-shaped guide groove is located above the bottom plate body; Hinge columns are installed at the positions close to the ends on the front and rear side surfaces of the flow guiding plates, and a roller is sleeved on each hinge column; The front and rear groups of symmetric rollers respectively slide along the trajectories of the front and rear two U-shaped guide grooves; Two elastic racks are symmetrically installed in each U-shaped guide groove, and the two end portions of each elastic rack are respectively connected to the two rollers on the same side; A driving cavity is opened at the connection of the vertical groove and the horizontal groove of the U-shaped guide groove, and a meshing gear is rotatably installed in the driving cavity through a shaft rod. The meshing gear meshes with the elastic rack with downward-facing teeth.

5. The sewage treatment device applied in road and bridge construction according to claim 4, characterized in that, The moving and adjusting mechanism further includes a guide rail block, a metal sheet and a through electromagnetic strip. A guide rail groove is formed on the groove wall of the U-shaped guide groove that fits with the elastic rack, and the width of the guide rail groove is smaller than the width of the elastic rack. A plurality of guide rail blocks are installed on the side wall of the elastic rack that fits with the U-shaped guide groove, and the plurality of guide rail blocks are located in the guide rail groove. A metal sheet is installed on the end surface of each guide rail block in an insulating manner, and a through electromagnetic strip is installed on the groove wall of the guide rail groove in an insulating manner, and the through electromagnetic strip is in contact with the plurality of metal sheets.

6. The sewage treatment device applied in road and bridge construction according to claim 5, wherein, The moving and adjusting mechanism further includes a sliding block and a spring member. A sliding guide groove is opened at the position of the flow guiding plate corresponding to the hinge column. The hinge column is slidably inserted into the sliding guide groove through the sliding block, and the two side surfaces of the sliding block are connected to the groove walls of the sliding guide groove through the spring member.

7. The sewage treatment device applied in road and bridge construction according to claim 3, characterized in that, Inside the drying box and above the drying channel, a horizontal plate is fixedly installed. A material dropping channel is formed between the end of the horizontal plate and the side wall of the processing box. A sealing plate is slidably arranged on the upper surface of the horizontal plate, and the sealing plate is internally communicated with the collection box through a conduction pipe. The conduction pipe is communicated with a communication pipe fixedly installed on the side wall of the drying box through an elastic hose.

8. The sewage treatment device applied in road and bridge construction according to claim 7, characterized in that, A through guide groove is formed in the horizontal plate along its length direction. A suspension block is slidably arranged in the through guide groove. A sealing plug plate is slidably attached to the lower surface of the horizontal plate, and the sealing plug plate is connected to the suspension block. The upper surface of the suspension block is connected to the sealing plate, and the sealing plug plate is slidably inserted into the material dropping channel.

9. The sewage treatment device applied in road and bridge construction according to claim 1, characterized in that, A spiral blade is rotatably installed in the drying channel, and the shaft rod of the spiral blade is rotatably installed on the two side walls of the drying channel through bearings. A discharge slot hole is formed in the left side wall of the drying channel, and an openable bin door is installed on the discharge slot hole.

10. The sewage treatment device applied in road and bridge construction according to claim 4, wherein, An elastic membrane tube is sleeved on the screw member, and the two end parts of the elastic membrane tube are respectively connected to two ball nut pairs. A segmented sealing membrane is slidably arranged in the U-shaped guide groove, and each segment of the sealing membrane is respectively connected to the roller and the groove wall of the U-shaped guide groove.

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