Slurry treatment equipment for shield construction and use method

Abstract

The invention relates to the technical field of slurry treatment, in particular to slurry treatment equipment for shield construction and a using method, the slurry treatment equipment comprises a slurry screening barrel, a motor is fixedly arranged on the side surface of the slurry screening barrel, and a gear is fixedly mounted on a rotating shaft of the motor. According to the slurry treatment equipment for shield construction and the using method, an elastic pin reaches a slope block and is extruded to retract inwards, a convex block on the surface of the elastic pin pushes two slurry filtering plates to move relatively along an inclined groove in a supporting plate, a folding plate on the lower side is pushed into an arc groove, when the elastic pin leaves the slope block, the two slurry filtering plates move back to back, and the folding plate is pulled out; compared with an existing fixed filter plate for filtering slurry, the slurry filter plate has the advantages that on one hand, slurry in the slurry can be thrown away through rotation, the filtering efficiency is improved, and on the other hand, filtered solids are extruded through relative displacement of the slurry filter plate, so that mud blocks existing in broken stones are crushed, and the situation that the mud blocks are mixed into the broken stones to affect subsequent use is avoided; and the slurry treatment effect is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of mud treatment, and in particular to mud treatment equipment for shield construction and a use method thereof. Background Art

[0002] The shield machine is a special mechanical equipment used for underground tunnel excavation, usually used in urban subway, road tunnel, water conservancy project and other construction projects. Its working principle is to use the shield machine to excavate and support the soil layer while advancing underground, so that the tunnel can be built smoothly. The shield machine is mainly composed of the tunneling head, shield shell, cutter head, cutter head drive system, propulsion hydraulic system, earth pressure balance system, support structure and other components. The working process can be roughly described as: excavation, propulsion, support and mud treatment. The shield machine will produce a lot of mud during the excavation process, which needs to be treated. The usual treatment method is to separate the solid particles and liquid in the mud through the mud treatment system, and then carry out deep treatment or discharge.

[0003] The existing patent (publication number: CN118267778B) discloses a mud treatment system for shield construction, including a feedback separation mechanism, a conveyor belt, a multi-stage cleaning mechanism and a sedimentation mechanism. The invention is provided with a feedback separation mechanism and a multi-stage cleaning mechanism to separate the gravel in the mud, and at the same time, the gravel is washed with wastewater in the mud to obtain clean gravel. The above-mentioned prior art uses a static filter plate to filter the mud, which has low efficiency, and the filter holes for separating stones need to be stopped for manual cleaning after being blocked, which greatly interferes with the mud treatment operation.

[0004] In view of this, we propose a mud processing equipment and a use method for shield construction. Summary of the invention

[0005] The object of the present invention is to provide a mud processing device and a method of use for shield construction, so as to solve the problem that the prior art proposed in the above background technology uses a static filter plate to filter the mud, which has low efficiency, and the filter holes for separating stones need to be stopped for manual cleaning after being blocked, which greatly interferes with the mud processing operation. In order to achieve the above purpose, the present invention provides the following technical solutions: a mud processing device for shield construction, including a slurry screening barrel, a motor is fixedly provided on the side surface of the slurry screening barrel, and a gear is fixedly installed on the rotating shaft of the motor, the top of the slurry screening barrel is rotatably connected to a gear ring meshing with the gear, and two vertical plates are fixedly connected to the inner side of the gear ring, the two vertical plates are symmetrically distributed, and the suspension is located in the slurry screening barrel, the bottom of the two vertical plates is fixedly connected to the suspension, and a screen press is provided on the suspension and the vertical plates.

[0006] The screen press comprises through holes opened along both ends of the suspension, and elastic pins are slidably connected in the through holes. A spring is arranged in the through holes, and the spring pushes the elastic pin to slide outward. A slope block matching with the elastic pin is fixedly arranged on the inner side wall of the pulp screening barrel.

[0007] The surface of the vertical plate is provided with stone filtering holes.

[0008] Two filter plates are arranged on the suspension, and the two filter plates are offset from the vertical plates on both sides and are symmetrically distributed along the suspension, the bottoms of both sides of the filter plates are fixedly connected with support plates, the upper surface of the suspension is provided with a slide groove connected with the through hole, the filter plates are slidably connected along the slide groove through the support plate, the top of the elastic pin is fixedly connected with a protrusion corresponding to the support plate, and the bottom of the support plate is provided with an inclined groove matching with the protrusion.

[0009] The inner side of the filter plate is fixedly connected with a folding plate which is composed of a plurality of hinged slats, and the suspension is provided with an arc groove which matches with the folding plate.

[0010] An arc plate for blocking mud is fixedly arranged on the outer side of the filter plate, a slurry blocking ring corresponding to the arc plate is arranged on the inner bottom of the screening barrel, and a coarse stone ring corresponding to the support plate is arranged on the outer side of the slurry blocking ring, and a fine stone ring corresponding to the vertical plate and the filter stone hole is arranged on the outer side of the coarse stone ring.

[0011] A hole cleaning component is arranged between the filter plate and the vertical plate.

[0012] Preferably, the hole cleaning assembly comprises a movable plate fixedly arranged on the inner side of the surface of the filter plate, and the number of the movable plates is four, and the four movable plates are symmetrically distributed along the two filter plates in a group of two.

[0013] The surface of the movable plate is provided with adjustment holes corresponding to the stone filtering holes, and the adjustment holes and the stone filtering holes are arranged in a staggered manner.

[0014] The folding plate and the suspension are provided with a magnetic screen assembly.

[0015] Preferably, the magnetic screen assembly includes an inner groove opened inside the suspension, and the inner groove is communicated with the through hole, and the bottom of the elastic pin is fixedly connected with a bracket, and the bracket is located in the inner groove.

[0016] Two triangular drawers are arranged on the lower side of the suspension, and the arc groove is set as the gap between the triangular drawers and the suspension.

[0017] A control shaft is fixedly connected to the end of the triangular drawer, and the control shaft passes through the suspension and extends into the inner groove. A spiral groove matching the bracket is provided on the surface of the control shaft, and a vertical groove connected to the spiral groove is also provided on the surface of the control shaft.

[0018] A magnetic sheet is fixedly arranged on one side of the folding plate surface opposite to the triangular drawer.

[0019] Preferably, the bottom of the pulp screening barrel is provided with three discharge outlets respectively cooperating with a pulp retaining ring, a coarse stone ring and a fine stone ring.

[0020] Preferably, a ball is rotatably provided on the outer end of the elastic pin.

[0021] Preferably, the movable plate and the pulp filter plate are connected by bolts.

[0022] Preferably, a rubber edge is fixedly provided on the bottom edge of the triangular drawer on the side opposite to the magnetic sheet.

[0023] A method for using a slurry processing device for shield construction comprises the following steps: S1. Pour the mud generated during construction into the processing area composed of the filter plate, folding plate and vertical plate, start the motor, and drive the vertical plate and suspension to rotate through the gear ring. During the rotation of the processing area, the muddy water of the mud is thrown out along the filter plate, and falls into the slurry retaining ring after being intercepted by the arc plate. The remaining solid matter is screened through the filter stone holes. The coarse stone falls into the coarse stone ring along the gap of the support plate, and the fine stone passes through the filter stone holes and falls into the fine stone ring; S2. During the process of the filter plates rotating and throwing pulp, the elastic pin reaches the slope block and is squeezed and retracted. The protrusions on its surface push the two filter plates to move relative to each other along the inclined groove on the support plate, and push the lower folding plate into the arc groove. When the elastic pin leaves the slope block, the two filter plates move back to each other and pull out the folding plate. S3, the stone filter holes on the vertical plate and the regulating holes on the movable plate are normally offset, and the overlapping area is used for stone filtering. During the relative displacement of the two filter plates, the movable plates on their sides move synchronously, so that the regulating holes are completely overlapped with the stone filter holes first, and then the offset is closed; S4. When the two filter plates are displaced relative to each other, the folding plate on the lower side is pushed into the arc groove, and the folding plate is made to fall downward into the slurry retaining ring, and then perform circular motion in the mud to adsorb the metal mixed therein on the magnetic sheet. When the two filter plates are displaced opposite to each other, the folding plate is pulled out of the slurry retaining ring. During the pulling-up process of the folding plate, the bracket moves synchronously with the outward-moving elastic pin, slides out of the vertical groove, and pushes the control shaft and the triangular drawer to rotate downward along the spiral groove to widen the arc groove. At this time, the magnetic sheet will not contact the triangular drawer, and during the downward movement of the folding plate along the arc groove, the bracket moves synchronously with the inward-moving elastic pin, and pushes the control shaft and the triangular drawer to rotate upward along the spiral groove to reset the arc groove. At this time, the downward-moving magnetic sheet contacts the triangular drawer and scrapes the metal on its surface into the triangular drawer.

[0024] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the elastic pin reaches the slope block and is squeezed and retracted, and the protrusions on its surface push the two filter plates to relative displacement along the inclined groove on the support plate, and push the lower folding plate into the arc groove. When the elastic pin leaves the slope block, the two filter plates are displaced back to back and the folding plate is pulled out. Compared with the existing method of filtering mud with a fixed filter plate, the above-mentioned filter plate can, on the one hand, use rotation to remove the slurry in the mud to improve the filtering efficiency, and on the other hand, the relative displacement of the filter plate squeezes the filtered solids, thereby crushing the mud blocks in the crushed stone to prevent the mud blocks from mixing into the crushed stone and affecting the subsequent use, thereby greatly improving the mud treatment effect.

[0025] In the present invention, the stone filtering holes on the vertical plate and the adjusting holes on the movable plate are normally offset, and the overlapping area is used for filtering stones. During the relative displacement of the two filter plates, the movable plates on their sides follow the synchronous movement, so that the adjusting holes are first completely overlapped with the stone filtering holes, and then offset and closed. Compared with the existing fixed filtering structure, the aperture between the adjusting holes and the stone filtering holes can be instantly expanded, and the stones that fit the filtering aperture and cause blockage can be loosened, thereby realizing automatic cleaning of the filtering hole structure, avoiding stone blockage that affects the efficiency of stone screening, and reducing the interference of manual shutdown inspection and maintenance on mud processing operations.

[0026] In the present invention, the folding plate falls downward into the slurry retaining ring and then performs a circular motion in the mud to adsorb the metal mixed therein onto the magnetic sheet. When the two filter plates are displaced in opposite directions, the folding plate is pulled out of the slurry retaining ring. During the pulling-up process of the folding plate, the bracket moves synchronously with the outwardly moving elastic pin, slides out of the vertical groove, and pushes the control shaft and the triangular drawer to rotate downward to widen the arc groove. At this time, the magnetic sheet will not contact the triangular drawer. During the downward movement of the folding plate along the arc groove, the bracket moves synchronously with the inwardly shrinking elastic pin, and pushes the control shaft and the triangular drawer to rotate upward along the spiral groove to reset the arc groove. At this time, the downwardly moving magnetic sheet contacts the triangular drawer and scrapes the metal on its surface into the triangular drawer. Compared with the existing method of removing all solid matter, the folding plate can use the magnetic sheet to screen out the metal in the mud during the pulling process, and then collect the screened metal in conjunction with the rotation of the triangular drawer. On the one hand, it is beneficial for users to recover the metal in the mud for value-added, and on the other hand, it is convenient for the subsequent wastewater treatment and discharge of the mud. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 An exploded view of the pulp screening barrel and the gear ring of the present invention; Figure 3 The three-dimensional structure of the pulp filter plate, vertical plate and arc plate of the present invention is shown in FIG. Figure 1 ; Figure 4 The three-dimensional structure of the pulp filter plate, vertical plate and arc plate of the present invention is shown in FIG. Figure 2 ; Figure 5 An exploded view of the pulp filter plate and the folding plate of the present invention; Figure 6 For the present invention Figure 5 The enlarged view of point A in the middle; Figure 7 It is a schematic diagram of the three-dimensional structure of the suspension and the vertical plate of the present invention; Figure 8 It is a three-dimensional structural cross-sectional view of the stone filter hole and the regulating hole of the present invention; Fig. 9 An exploded view of the support plate and the suspension of the present invention; Fig.10 A partial cross-sectional view of the suspension and the through hole of the present invention; Fig.11 The exploded view of the suspension and the triangle drawer of the present invention; Fig.12 For the present invention Fig.11 Enlarged view of point B in the middle.

[0028] In the figure: 1, pulp screening barrel; 2, motor; 3, gear; 4, gear ring; 5, vertical plate; 6, suspension; 7, screen press; 71, through hole; 72, spring pin; 73, spring; 74, slope block; 75, stone filter hole; 76, pulp filter plate; 77, support plate; 78, slide groove; 79, convex block; 710, inclined groove; 711, folding plate; 712, arc groove; 713, arc plate; 714, pulp retaining ring; 715, coarse stone ring; 716, fine stone ring; 717, hole cleaning assembly; 7171, movable plate; 7172, adjusting hole; 7173, magnetic screen assembly; 71731, inner groove; 71732, bracket; 71733, triangular drawer; 71734, control shaft; 71735, spiral groove; 71736, vertical groove; 71737, magnetic sheet. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figures 1 to 12The present invention provides a technical solution: a slurry processing equipment for shield construction, comprising a slurry screening barrel 1, a motor 2 is fixedly arranged on the side surface of the slurry screening barrel 1, and a gear 3 is fixedly installed on the rotating shaft of the motor 2, the top of the slurry screening barrel 1 is rotatably connected with a gear ring 4 meshing with the gear 3, and the inner side of the gear ring 4 is fixedly connected with two vertical plates 5, the two vertical plates 5 are symmetrically distributed, and a suspension 6 is located in the slurry screening barrel 1, the bottom of the two vertical plates 5 is fixedly connected with the suspension 6, and a screen press 7 is arranged on the suspension 6 and the vertical plates 5, and the motor 2 drives the screen press 7 to rotate through the gear ring 4.

[0031] The screen press 7 includes through holes 71 opened along the two ends of the suspension 6, and a spring pin 72 is slidably connected in the through hole 71. A spring 73 is arranged in the through hole 71, and the spring 73 pushes the spring pin 72 to slide outward. A slope block 74 matching the spring pin 72 is fixedly arranged on the inner side wall of the pulp screening barrel 1.

[0032] The surface of the vertical plate 5 is provided with stone filtering holes 75 .

[0033] Two filter plates 76 are arranged on the suspension 6, and the two filter plates 76 are offset from the vertical plates 5 on both sides and are symmetrically distributed along the suspension 6. The bottoms of both sides of the filter plates 76 are fixedly connected with support plates 77. The upper surface of the suspension 6 is provided with a slide groove 78 connected with the through hole 71. The filter plates 76 are slidably connected along the slide groove 78 through the support plate 77. The top of the elastic pin 72 is fixedly connected with a protrusion 79 corresponding to the support plate 77, and the bottom of the support plate 77 is provided with an inclined groove 710 matching the protrusion 79.

[0034] The inner side of the filter plate 76 is fixedly connected to a folding plate 711 composed of a plurality of hinged slats. An arc groove 712 matching the folding plate 711 is provided on the suspension 6. When the spring pin 72 reaches the slope block 74, it is squeezed and retracts. The protrusion 79 on its surface pushes the two filter plates 76 to move relative to each other along the inclined groove 710 on the support plate 77, and pushes the lower folding plate 711 into the arc groove 712. When the spring pin 72 leaves the slope block 74, the two filter plates 76 move back to back and pull out the folding plate 711, and the mud generated during the construction is poured into the processing area composed of the filter plates 76, the folding plates 711 and the vertical plates 5. The muddy water in the mud is thrown out along the filter plates 76 during the rotation of the processing area.

[0035] An arc plate 713 for blocking mud is fixedly provided on the outer side of the filter plate 76, and the arc plate 713 can be fixedly connected to the gear ring 4. A slurry blocking ring 714 corresponding to the arc plate 713 is provided on the inner bottom of the screening barrel 1, and a coarse stone ring 715 corresponding to the support plate 77 is provided on the outer side of the slurry blocking ring 714, and a fine stone ring 716 corresponding to the vertical plate 5 and the filter stone hole 75 is provided on the outer side of the coarse stone ring 715. The muddy water thrown out by the filter plate 76 falls into the slurry blocking ring 714 after being intercepted by the arc plate 713, and the remaining solid matter is sieved through the filter stone hole 75, the coarse stone falls into the coarse stone ring 715 along the gap of the support plate 77, and the fine stone passes through the filter stone hole 75 and falls into the fine stone ring 716.

[0036] A hole cleaning assembly 717 is provided between the pulp filter plate 76 and the vertical plate 5 .

[0037] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 12 As shown, the hole cleaning assembly 717 includes a movable plate 7171 fixedly arranged on the inner side of the surface of the filter plate 76, and the number of the movable plates 7171 is four. The four movable plates 7171 are symmetrically distributed along the two filter plates 76 in a group of two.

[0038] An adjustment hole 7172 corresponding to the stone filter hole 75 is provided on the surface of the movable plate 7171, and the adjustment hole 7172 is staggered with the stone filter hole 75. When the spring pin 72 reaches the slope block 74, it is squeezed and shrinks inward, and the protrusion 79 on its surface pushes the two filter plates 76 to move relative to each other along the inclined groove 710 on the support plate 77, and pushes the lower folding plate 711 into the arc groove 712. When the spring pin 72 leaves the slope block 74, the two filter plates 76 move back to back and pull out the folding plate 711.

[0039] A magnetic screen assembly 7173 is provided on the folding plate 711 and the suspension 6 .

[0040] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 12 As shown, the magnetic screen assembly 7173 includes an inner groove 71731 opened inside the suspension 6, and the inner groove 71731 is connected to the through hole 71, and the bottom of the elastic pin 72 is fixedly connected with a bracket 71732, and the bracket 71732 is located in the inner groove 71731.

[0041] Two triangular drawers 71733 are provided on the lower side of the suspension 6, and the arc groove 712 is set as the gap between the triangular drawers 71733 and the suspension 6.

[0042] The end of the triangular drawer 71733 is fixedly connected with a control shaft 71734, and the control shaft 71734 passes through the suspension 6 and extends into the inner groove 71731. The surface of the control shaft 71734 is provided with a spiral groove 71735 that matches the bracket 71732, and the surface of the control shaft 71734 is also provided with a vertical groove 71736 that communicates with the spiral groove 71735. When the two filter plates are displaced in opposite directions, the folding plate 711 is pulled out of the slurry retaining ring 714. During the upward pulling of the folding plate 711, the bracket 71732 follows the outwardly moving elastic pin 72 It moves synchronously and slides out of the vertical groove 71736, pushing the control shaft 71734 and the triangular drawer 71733 to rotate downward along the spiral groove 71735 to widen the arc groove 712. At this time, the magnetic sheet 71737 will not contact the triangular drawer 71733. During the downward movement of the folding plate 711 along the arc groove 712, the bracket 71732 moves synchronously with the retracted spring pin 72, and pushes the control shaft 71734 and the triangular drawer 71733 to rotate upward along the spiral groove 71735 to reset the arc groove 712. At this time, the downward moving magnetic sheet 71737 contacts the triangular drawer 71733.

[0043] A magnetic sheet 71737 is fixedly provided on the surface of the folding plate 711 on one side relative to the triangular drawer 71733. When the two filter plates 76 are relatively displaced, the lower folding plate 711 is pushed into the arc groove 712, and the folding plate 711 falls downward into the slurry retaining ring 714, and then moves in a circular motion in the mud, so that the metal contained therein is adsorbed on the magnetic sheet 71737.

[0044] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 12 As shown, the bottom of the slurry screening barrel 1 is respectively provided with three discharge outlets cooperating with the slurry retaining ring 714, the coarse stone ring 715 and the fine stone ring 716. The slurry intercepted by the slurry retaining ring 714, the coarse stone intercepted by the coarse stone ring 715 and the fine stone intercepted by the fine stone ring 716 are respectively discharged through different discharge outlets.

[0045] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 12 As shown, a ball is rotatably provided at the outer end of the elastic pin 72. The elastic pin 72 contacts the protrusion 79 by the ball during the circular motion, which can effectively reduce friction and extend the service life.

[0046] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 12As shown, the movable plate 7171 is connected to the pulp filter plate 76 by bolts. The movable plate 7171 can be disassembled after the bolts are unscrewed, so that the movable plate 7171 and the adjustment hole 7172 can be quickly replaced after they are worn.

[0047] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 12 As shown, a rubber edge is fixedly provided on the bottom edge of the triangular drawer 71733 on the side opposite to the magnetic sheet 71737. When the triangular drawer 71733 is closed, the rubber edge is used to fit with the magnetic sheet 71737, so that the metal chips adsorbed on the magnetic sheet 71737 can be scraped off better.

[0048] A method for using a slurry processing device for shield construction comprises the following steps: S1. Pour the mud generated during construction into the processing area composed of the filter plate 76, the folding plate 711 and the vertical plate 5, start the motor 2, and drive the vertical plate 5 and the suspension 6 to rotate through the gear ring 4. During the rotation of the processing area, the muddy water of the mud is thrown out along the filter plate 76, and the mud falls into the slurry retaining ring 714 after being intercepted by the arc plate 713. The remaining solid matter is screened through the filter stone holes 75, and the coarse stone falls into the coarse stone ring 715 along the gap of the support plate 77, and the fine stone passes through the filter stone holes 75 and falls into the fine stone ring 716.

[0049] S2. During the process of the filter plates 76 rotating and throwing out pulp, the spring pin 72 reaches the slope block 74 and is squeezed and retracted. The protrusion 79 on its surface pushes the two filter plates 76 to move relative to each other along the inclined groove 710 on the support plate 77, and pushes the lower folding plate 711 into the arc groove 712. When the spring pin 72 leaves the slope block 74, the two filter plates 76 move back to each other and pull out the folding plate 711.

[0050] S3. The stone filtering hole 75 on the vertical plate 5 and the adjusting hole 7172 on the movable plate 7171 are normally offset, and the overlapping area is used for filtering stones. During the relative displacement of the two filter plates 76, the movable plate 7171 on its side follows and moves synchronously, so that the adjusting hole 7172 is first completely overlapped with the stone filtering hole 75, and then the offset is closed.

[0051] S4. When the two filter plates 76 are displaced relative to each other, the folding plate 711 on the lower side is pushed into the arc groove 712, and the folding plate 711 is made to fall downward into the slurry retaining ring 714, and then performs a circular motion in the mud to adsorb the metal mixed therein onto the magnetic sheet 71737. When the two filter plates are displaced in opposite directions, the folding plate 711 is pulled out of the slurry retaining ring 714. During the upward pulling of the folding plate 711, the bracket 71732 moves synchronously with the outwardly moving spring pin 72, and slides out of the vertical groove 71736 to push the control along the spiral groove 71735. The shaft 71734 and the triangular drawer 71733 rotate downward to widen the arc groove 712. At this time, the magnetic sheet 71737 will not contact the triangular drawer 71733. During the downward movement of the folding plate 711 along the arc groove 712, the bracket 71732 moves synchronously with the retracted spring pin 72, and pushes the control shaft 71734 and the triangular drawer 71733 to rotate upward along the spiral groove 71735 to reset the arc groove 712. At this time, the downward moving magnetic sheet 71737 contacts the triangular drawer 71733 and scrapes the metal on its surface into the triangular drawer 71733.

[0052] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A slurry processing device for shield construction, comprising a slurry screening bucket (1), characterized in that: A motor (2) is fixedly arranged on the side surface of the pulp screening barrel (1), and a gear (3) is fixedly mounted on the rotating shaft of the motor (2); a gear ring (4) meshing with the gear (3) is rotatably connected to the top of the pulp screening barrel (1), and two vertical plates (5) are fixedly connected to the inner side of the gear ring (4); the two vertical plates (5) are symmetrically distributed, and a suspension (6) is located in the pulp screening barrel (1); the bottoms of the two vertical plates (5) are fixedly connected to the suspension (6), and a screen press (7) is arranged on the suspension (6) and the vertical plates (5); The screen press (7) comprises through holes (71) opened along both ends of the suspension (6), and a spring pin (72) is slidably connected in the through hole (71), a spring (73) is arranged in the through hole (71), and the spring (73) pushes the spring pin (72) to slide outward, and a slope block (74) matching with the spring pin (72) is fixedly arranged on the inner side wall of the pulp screening barrel (1); The surface of the vertical plate (5) is provided with stone filtering holes (75); Two pulp filter plates (76) are arranged on the suspension (6), and the two pulp filter plates (76) are offset from the vertical plates (5) on both sides and are symmetrically distributed along the suspension (6); the bottoms of both sides of the pulp filter plates (76) are fixedly connected to support plates (77); a slide groove (78) communicating with the through hole (71) is provided on the upper surface of the suspension (6); the pulp filter plates (76) are slidably connected along the slide groove (78) via the support plate (77); a protrusion (79) corresponding to the support plate (77) is fixedly connected to the top of the elastic pin (72); and an inclined groove (710) matching the protrusion (79) is provided at the bottom of the support plate (77); A folding plate (711) composed of a plurality of hinged slats is fixedly connected to the inner side of the pulp filter plate (76), and an arc groove (712) matching with the folding plate (711) is provided on the suspension frame (6); An arc plate (713) for blocking mud is fixedly arranged on the outer side of the pulp filter plate (76); a mud blocking ring (714) corresponding to the arc plate (713) is arranged on the inner bottom of the pulp screening barrel (1); a coarse stone ring (715) corresponding to the support plate (77) is arranged on the outer side of the mud blocking ring (714); and a fine stone ring (716) corresponding to the vertical plate (5) and the stone filtering hole (75) is arranged on the outer side of the coarse stone ring (715); A hole cleaning component (717) is provided between the pulp filter plate (76) and the vertical plate (5).

2. The slurry processing equipment for shield construction according to claim 1, characterized in that: The hole cleaning assembly (717) comprises a movable plate (7171) fixedly arranged on the inner side of the surface of the pulp filter plate (76), and the number of the movable plates (7171) is four, and the four movable plates (7171) are arranged in groups of two and are symmetrically distributed along the two pulp filter plates (76); The surface of the movable plate (7171) is provided with an adjustment hole (7172) corresponding to the stone filtering hole (75), and the adjustment hole (7172) and the stone filtering hole (75) are arranged in a staggered manner; A magnetic screen assembly (7173) is provided on the folding plate (711) and the suspension frame (6).

3. The slurry processing equipment for shield construction according to claim 2 is characterized in that: The magnetic screen assembly (7173) comprises an inner groove (71731) opened inside the suspension (6), and the inner groove (71731) is connected to the through hole (71), and the bottom of the elastic pin (72) is fixedly connected to a bracket (71732), and the bracket (71732) is located in the inner groove (71731); Two triangular drawers (71733) are provided on the lower side of the suspension (6), and the arc groove (712) is set as the gap between the triangular drawers (71733) and the suspension (6); The end of the triangular drawer (71733) is fixedly connected to a control shaft (71734), and the control shaft (71734) passes through the suspension (6) and extends into the inner groove (71731); the surface of the control shaft (71734) is provided with a spiral groove (71735) that matches the bracket (71732), and the surface of the control shaft (71734) is also provided with a vertical groove (71736) that communicates with the spiral groove (71735); A magnetic sheet (71737) is fixedly arranged on one side of the surface of the folding plate (711) opposite to the triangular drawer (71733).

4. The slurry processing equipment for shield construction according to claim 1, characterized in that: The bottom of the pulp screening barrel (1) is provided with three discharge outlets respectively matched with a pulp retaining ring (714), a coarse stone ring (715), and a fine stone ring (716).

5. The slurry processing equipment for shield construction according to claim 1, characterized in that: A ball is rotatably arranged on the outer end of the elastic pin (72).

6. The slurry processing equipment for shield construction according to claim 2, characterized in that: The movable plate (7171) and the pulp filter plate (76) are connected via bolts.

7. The slurry processing equipment for shield construction according to claim 3 is characterized by: A rubber edge is fixedly provided on the bottom edge of the triangular drawer (71733) on the side opposite to the magnetic sheet (71737).

8. The method for using the mud processing equipment for shield construction according to claim 3 comprises the following steps: S1, pouring the mud generated during construction into the processing area composed of the filter plate (76), the folding plate (711) and the vertical plate (5), starting the motor (2), driving the vertical plate (5) and the suspension (6) to rotate through the gear ring (4), and during the rotation of the processing area, the muddy water of the mud is thrown out along the filter plate (76), intercepted by the arc plate (713) and falls into the mud retaining ring (714), and the remaining solid matter is screened through the filter stone holes (75), and the coarse stone falls into the coarse stone ring (715) along the gap of the support plate (77), and the fine stone passes through the filter stone holes (75) and falls into the fine stone ring (716); S2, during the process of the filter plates (76) rotating and throwing pulp, the spring pin (72) reaches the slope block (74) and is squeezed and retracted, and the protrusion (79) on its surface pushes the two filter plates (76) to move relative to each other along the inclined groove (710) on the support plate (77), and pushes the folding plate (711) on the lower side into the arc groove (712). When the spring pin (72) leaves the slope block (74), the two filter plates (76) move back to each other and pull out the folding plate (711); S3, the stone filtering holes (75) on the vertical plate (5) and the regulating holes (7172) on the movable plate (7171) are normally offset, and the overlapping area is used for filtering stones. During the relative displacement of the two pulp filter plates (76), the movable plates (7171) on the sides thereof follow and move synchronously, so that the regulating holes (7172) are first completely overlapped with the stone filtering holes (75), and then the offset sealing is performed; S4. When the two filter plates (76) are displaced relative to each other, the folding plate (711) on the lower side is pushed into the arc groove (712), and the folding plate (711) is made to fall downward into the slurry retaining ring (714), and then performs a circular motion in the slurry to adsorb the metal contained therein onto the magnetic sheet (71737). When the two filter plates are displaced in opposite directions, the folding plate (711) is pulled out of the slurry retaining ring (714). During the upward pulling of the folding plate (711), the bracket (71732) moves synchronously with the outwardly moving spring pin (72), slides out of the vertical groove (71736), and pushes the control shaft (71735) along the spiral groove (71735). 1734) and the triangular drawer (71733) rotate downward to widen the arc groove (712), at which time the magnetic sheet (71737) does not contact the triangular drawer (71733), and when the folding plate (711) moves downward along the arc groove (712), the bracket (71732) moves synchronously with the retracted spring pin (72) and pushes the control shaft (71734) and the triangular drawer (71733) to rotate upward along the spiral groove (71735) to reset the arc groove (712), at which time the downwardly moving magnetic sheet (71737) contacts the triangular drawer (71733) and scrapes the metal on its surface into the triangular drawer (71733).

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