A slurry treatment device for shield construction and its usage method

Abstract

The present invention relates to the technical field of mud treatment, and specifically to a mud treatment device and a usage method for shield construction, including a slurry screening barrel. A motor is fixedly arranged on the side surface of the slurry screening barrel, and a gear is fixedly installed on the rotating shaft of the motor. For this mud treatment device and usage method for shield construction, when the spring pin reaches the slope block, it is squeezed and retracts inward. The convex block on its surface pushes the two filter slurry plates to displace relative to each other along the inclined groove on the support plate, and pushes the lower folding plate into the arc groove. When the spring pin leaves the slope block, the two filter slurry plates displace away from each other and pull out the folding plate. Compared with the existing method of using fixed filter plates to filter mud, on the one hand, the above-mentioned filter slurry plates can use rotation to throw out the slurry in the mud, improving the filtration efficiency. On the other hand, the relative displacement of the filter slurry plates squeezes the filtered solids, thereby crushing the mud blocks existing in the crushed stones and preventing the mud blocks from mixing into the crushed stones and affecting subsequent use, greatly improving the mud treatment effect.

Description

Technical Field

[0001] The present invention relates to the technical field of mud treatment, and particularly to a mud treatment device and a usage method for shield construction. Background Technique

[0002] A shield machine is a special mechanical equipment for underground tunnel excavation, usually used in construction projects such as urban subways, road tunnels, and water conservancy projects. Its working principle is to excavate and support the soil layer while the shield machine advances underground, enabling the tunnel to be smoothly constructed. The shield machine mainly consists of components such as a tunneling head, a shield shell, a cutter head, a cutter head drive system, a propulsion hydraulic system, an earth pressure balance system, and a support structure. The working process can be generally described as: tunneling, propulsion, support, and mud treatment. A large amount of mud is generated during the excavation process of the shield machine, and this mud needs to be treated. The usual treatment method is to separate the solid particles and liquid in the mud through a mud treatment system, and then perform in-depth 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. This invention sets up a feedback separation mechanism and a multi-stage cleaning mechanism to separate the gravel in the mud, and at the same time uses the waste water in the mud to wash the gravel to obtain clean gravel. The above-mentioned existing technology uses a static filter plate to filter the mud, with low efficiency, and when the filter holes for separating stones are blocked, it is necessary to stop the machine for manual cleaning, which greatly interferes with the mud treatment operation.

[0004] In view of this, we propose a mud treatment device and a usage method for shield construction. Summary of the Invention

[0005] The purpose of the present invention is to provide a mud treatment device and a usage method for shield construction to solve the problems in the above-mentioned background technique that the existing technology uses a static filter plate to filter the mud, with low efficiency, and when the filter holes for separating stones are blocked, it is necessary to stop the machine for manual cleaning, which greatly interferes with the mud treatment operation. To achieve the above purpose, the present invention provides the following technical solution: A mud treatment device for shield construction, including a slurry screening barrel, a motor is fixedly arranged on the side surface of the slurry screening barrel, and a gear is fixedly installed on the rotating shaft of the motor. A gear ring meshing with the gear is rotatably connected to the top of the slurry screening barrel, and two vertical plates are fixedly connected to the inner side of the gear ring. The two vertical plates are symmetrically distributed, and a suspension is located inside the slurry screening barrel. The bottom of the two vertical plates is fixedly connected to the suspension, and a screen pressing device is arranged on the suspension and the vertical plates.

[0006] The pressing sieve includes through holes opened at both ends of the suspension, and spring pins are slidably connected in the through holes. Springs are arranged in the through holes, and the springs push the spring pins to slide outwards. Slope blocks are fixedly arranged on the inner side wall of the pulp screening barrel and are matched with the spring pins.

[0007] Filter stone holes are formed on the surface of the vertical plate.

[0008] Two pulp filtering plates are arranged on the suspension. The two pulp filtering plates are misaligned with the vertical plates on both sides and are symmetrically distributed along the suspension. Support plates are fixedly connected to the bottoms on both sides of the pulp filtering plates. A sliding groove communicated with the through hole is formed on the upper surface of the suspension. The pulp filtering plates are slidably connected along the sliding groove through the support plates. A convex block corresponding to the support plate is fixedly connected to the top of the spring pin, and an inclined groove matched with the convex block is formed at the bottom of the support plate.

[0009] A folding plate composed of a plurality of slats hinged together is fixedly connected to the inner side of the pulp filtering plate. An arc groove matched with the folding plate is formed on the suspension.

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

[0011] A hole cleaning assembly is arranged between the pulp filtering plate and the vertical plate.

[0012] Preferably, the hole cleaning assembly includes movable plates fixedly arranged on the inner side of the surface of the pulp filtering plate. The number of the movable plates is four. The four movable plates are symmetrically distributed in two groups along the two pulp filtering plates respectively.

[0013] Adjusting holes corresponding to the filter stone holes are formed on the surface of the movable plates, and the adjusting holes are misaligned with the filter stone holes.

[0014] A magnetic sieve assembly is arranged between the folding plate and the suspension.

[0015] Preferably, the magnetic sieve assembly includes an inner groove opened inside the suspension. The inner groove is communicated with the through hole. A bracket is fixedly connected to the bottom of the spring pin, and the bracket is located in the inner groove.

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

[0017] A control shaft is fixedly connected to the end of the triangular drawer, and the control shaft penetrates through the suspension and extends into the inner groove. A spiral groove matched with the bracket is formed on the surface of the control shaft, and a vertical groove communicated with the spiral groove is also formed on the surface of the control shaft.

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

[0019] Preferably, three discharge ports are respectively arranged at the bottom of the pulp screening barrel and are matched with the slurry retaining ring, the coarse stone ring and the fine stone ring.

[0020] Preferably, a rolling ball is rotatably arranged at the outer end of the spring pin.

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

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

[0023] A usage method of a slurry treatment device for shield construction includes the following steps:

[0024] S1. Pour the slurry generated during construction into the treatment area composed of the filter pulp plate, the folding plate and the vertical plate, start the motor, drive the vertical plate and the suspension to rotate through the gear ring. During the rotation of the treatment area, the muddy water of the slurry is thrown out along the filter pulp plate, intercepted by the arc plate and then falls into the slurry retaining ring, and the remaining solid substances are screened through the filter stone holes. The coarse stones fall into the coarse stone ring along the gaps between the support plates, and the fine stones pass through the filter stone holes and fall into the fine stone ring;

[0025] S2. During the process of the filter pulp plate rotating and throwing slurry, when the spring pin reaches the slope block, it is squeezed and retracts inward. The convex blocks on its surface push the two filter pulp plates to displace relatively along the inclined grooves on the support plate, and push the lower folding plate into the arc groove. When the spring pin leaves the slope block, the two filter pulp plates displace away from each other and pull out the folding plate;

[0026] S3. The filter stone holes on the vertical plate and the adjustment holes on the movable plate are misaligned under normal conditions, and the overlapping area is used for filtering stones. During the relative displacement of the two filter pulp plates, the movable plate on the side follows and moves synchronously, so that the adjustment holes first completely coincide with the filter stone holes and then are misaligned and closed;

[0027] S4. When the two filter pulp plates displace relatively, the lower folding plate is pushed into the arc groove and the folding plate falls downward into the slurry retaining ring, and then makes a circular motion in the slurry to adsorb the metal mixed in it on the magnetic sheet. When the two filter plates displace away from each other, the folding plate is pulled out from the slurry retaining ring. During the upward pulling process of the folding plate, the support moves synchronously with the outward moving spring pin, slides out of the vertical groove and pushes the control shaft and the lower widened arc groove of the triangular drawer along the spiral groove. At this time, the magnetic sheet does not contact the triangular drawer. When the folding plate moves downward along the arc groove, the support moves synchronously with the inward retracting spring pin and pushes the control shaft and the triangular drawer to rotate upward 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.

[0028] Compared with the prior art, the beneficial effects of the present invention:

[0029] In the present invention, when the ejector pin reaches the slope block, it is squeezed and retracted. The bump on its surface pushes the two filter slurry plates to displace relative to each other along the inclined groove on the support plate, and the folding plate on the lower side is pushed into the arc groove. When the ejector pin leaves the slope block, the two filter slurry plates displace away from each other and pull out the folding plate. Compared with the existing method of using fixed filter plates to filter mud, on the one hand, the above-mentioned filter slurry plates can use rotation to throw off the slurry in the mud, improving the filtration efficiency. On the other hand, the relative displacement of the filter slurry plates squeezes the filtered solids, thereby crushing the mud blocks existing in the gravel and preventing the mud blocks from mixing into the gravel and affecting subsequent use, greatly improving the mud treatment effect.

[0030] In the present invention, the filter stone holes on the vertical plate and the adjustment holes on the movable plate are misaligned under normal conditions, and the overlapping area is used for filtering stones. During the relative displacement of the two filter slurry plates, the movable plate on the side follows and moves synchronously, so that the adjustment holes first completely coincide with the filter stone holes and then are misaligned and closed. Compared with the existing fixed filtering structure, the aperture between the above-mentioned adjustment holes and the filter stone holes can be instantaneously enlarged, releasing the stones that fit the filtering aperture and cause blockage, thereby realizing the automatic cleaning of the filtering hole structure, avoiding the influence of stone blockage on the efficiency of stone screening, and also reducing the interference of manual shutdown inspection and maintenance on the mud treatment operation.

[0031] In the present invention, the folding plate falls downward into the slurry retaining ring and then makes a circular motion in the mud, adsorbing the metal mixed in it on the magnetic sheet. When the two filter plates displace away from each other, the folding plate is pulled out of the slurry retaining ring. During the upward pulling of the folding plate, the bracket moves synchronously with the outward-moving ejector pin and slides out of the vertical groove and pushes the control shaft and the lower part of the triangular drawer along the spiral groove to increase the width of the arc groove. At this time, the magnetic sheet does not contact the triangular drawer. When the folding plate moves downward along the arc groove, the bracket moves synchronously with the retracted ejector pin and pushes the control shaft and the triangular drawer to rotate upward 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. Compared with the existing method of completely removing all solids, the above-mentioned folding plate can use the magnetic sheet to screen out the metal in the mud during the pulling process, and then cooperate with the rotation of the triangular drawer to collect the screened metal. On the one hand, it is beneficial for users to recycle the metal in the mud for value addition. On the other hand, it facilitates the subsequent wastewater treatment and discharge of the mud. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0033] Figure 2 is an exploded view of the slurry screening barrel and the gear ring of the present invention;

[0034] Figure 3 is a three-dimensional structural schematic of the filter slurry plate, vertical plate and arc plate of the present invention Figure 1 ;

[0035] Figure 4Schematic three-dimensional structure of the filter slurry plate, vertical plate and arc plate of the present invention Figure 2 ;

[0036] Figure 5 Exploded view of the filter slurry plate and the folding plate of the present invention;

[0037] Figure 6 For the present invention Figure 5 Enlarged view of part A in;

[0038] Figure 7 Schematic three-dimensional structure of the suspension and the vertical plate of the present invention;

[0039] Figure 8 Schematic cross-sectional view of the three-dimensional structure of the filter stone hole and the adjustment hole of the present invention;

[0040] Figure 9 Exploded view of the support plate and the suspension of the present invention;

[0041] Figure 10 Partial cross-sectional view of the suspension and the through hole of the present invention;

[0042] Figure 11 Exploded view of the suspension and the triangular drawer of the present invention;

[0043] Figure 12 For the present invention Figure 11 Enlarged view of part B in.

[0044] In the figure: 1, pulp screening barrel; 2, motor; 3, gear; 4, gear ring; 5, vertical plate; 6, suspension; 7, pulp pressing sieve; 71, through hole; 72, spring pin; 73, spring; 74, slope block; 75, filter stone hole; 76, filter slurry plate; 77, support plate; 78, chute; 79, convex block; 710, inclined chute; 711, folding plate; 712, arc chute; 713, arc plate; 714, slurry retaining ring; 715, coarse stone ring; 716, fine stone ring; 717, hole cleaning assembly; 7171, movable plate; 7172, adjustment hole; 7173, magnetic screening assembly; 71731, inner groove; 71732, bracket; 71733, triangular drawer; 71734, control shaft; 71735, spiral groove; 71736, vertical groove; 71737, magnetic sheet. Detailed implementation manners

[0045] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical staff in the art without creative work fall within the protection scope of the present invention.

[0046] Please refer to Figures 1 to 12, the present invention provides a technical solution: a slurry treatment device for shield construction, including 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. A gear ring 4 meshing with the gear 3 is rotatably connected to the top of the slurry 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 inside the slurry screening barrel 1. The bottoms of the two vertical plates 5 are fixedly connected to the suspension 6, and a pressure screen 7 is arranged on the suspension 6 and the vertical plates 5. The motor 2 drives the pressure screen 7 to rotate through the gear ring 4.

[0047] The pressure screen 7 includes through holes 71 opened along both ends of the suspension 6, and a spring pin 72 is slidably connected in the through holes 71. A spring 73 is arranged in the through holes 71, and the spring 73 pushes the spring pin 72 to slide outwards. A slope block 74 cooperating with the spring pin 72 is fixedly arranged on the inner side wall of the slurry screening barrel 1.

[0048] Filter stone holes 75 are opened on the surface of the vertical plate 5.

[0049] Two filter slurry plates 76 are arranged on the suspension 6, and the two filter slurry plates 76 are misaligned with the two side vertical plates 5 and are symmetrically distributed along the suspension 6. Support plates 77 are fixedly connected to the bottoms on both sides of the filter slurry plates 76. A sliding groove 78 communicated with the through holes 71 is opened on the upper surface of the suspension 6. The filter slurry plates 76 are slidably connected along the sliding groove 78 through the support plates 77. A convex block 79 corresponding to the support plate 77 is fixedly connected to the top of the spring pin 72, and an inclined groove 710 cooperating with the convex block 79 is opened at the bottom of the support plate 77.

[0050] The inner side of the filter slurry plate 76 is fixedly connected with a folding plate 711 composed of a plurality of slats hinged together. An arc groove 712 cooperating with the folding plate 711 is opened on the suspension 6. When the spring pin 72 reaches the slope block 74, it is squeezed and retracts. The convex block 79 on its surface pushes the two filter slurry plates 76 to displace relatively 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 slurry plates 76 displace away from each other and pull out the folding plate 711. The slurry generated during construction is poured into the treatment area composed of the filter slurry plates 76, the folding plate 711 and the vertical plates 5. During the rotation of the treatment area, the muddy water of the slurry is thrown out along the filter slurry plates 76.

[0051] An arc plate 713 for blocking mud is fixedly arranged on the outer side of the filter slurry plate 76. The arc plate 713 can be fixedly connected to the gear ring 4. A mud blocking ring 714 corresponding to the arc plate 713 is arranged at the inner bottom of the slurry 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. A fine stone ring 716 corresponding to the vertical plate 5 and the filter stone holes 75 is arranged on the outer side of the coarse stone ring 715. The muddy water thrown out by the filter slurry plate 76 is intercepted by the arc plate 713 and then falls into the mud blocking ring 714. The remaining solid substances are sieved through the filter stone holes 75. The coarse stone materials fall into the coarse stone ring 715 along the gaps of the support plate 77, and the fine stone materials pass through the filter stone holes 75 and fall into the fine stone ring 716.

[0052] A hole cleaning assembly 717 is arranged between the filter slurry plate 76 and the vertical plate 5.

[0053] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 12 shown, the hole cleaning assembly 717 includes movable plates 7171 fixedly arranged on the inner side of the surface of the filter slurry plate 76. The number of the movable plates 7171 is four. The four movable plates 7171 are symmetrically distributed in groups of two along the two filter slurry plates 76 respectively.

[0054] Adjusting holes 7172 corresponding to the filter stone holes 75 are formed on the surface of the movable plate 7171. The adjusting holes 7172 and the filter stone holes 75 are arranged in a staggered manner. When the spring pin 72 reaches the slope block 74, it is squeezed and retracted inward. The convex block 79 on its surface pushes the two filter slurry plates 76 to displace relatively 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 slurry plates 76 displace away from each other and pull out the folding plate 711.

[0055] A magnetic screening assembly 7173 is arranged on the folding plate 711 and the suspension 6.

[0056] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 12 shown, the magnetic screening assembly 7173 includes an inner groove 71731 formed inside the suspension 6. The inner groove 71731 is communicated with the through hole 71. The bottom of the spring pin 72 is fixedly connected with a bracket 71732, and the bracket 71732 is located in the inner groove 71731.

[0057] Two triangular drawers 71733 are arranged on the lower side of the suspension 6. The arc groove 712 is set as the gap between the triangular drawer 71733 and the suspension 6.

[0058] A control shaft 71734 is fixedly connected to the end of the triangular drawer 71733, and the control shaft 71734 penetrates through the suspension 6 and extends into the inner groove 71731. A spiral groove 71735 that mates with the bracket 71732 is formed on the surface of the control shaft 71734, and a vertical groove 71736 that communicates with the spiral groove 71735 is also formed on the surface of the control shaft 71734. When the two filter plates are displaced away from each other, the folding plate 711 is pulled out of the slurry retaining ring 714. During the upward movement of the folding plate 711, the bracket 71732 moves synchronously with the outwardly displaced spring pin 72, slides out of the vertical groove 71736, and pushes the control shaft 71734 and the triangular drawer 71733 downward to increase the width of the arc groove 712. At this time, the magnetic sheet 71737 does not contact the triangular drawer 71733. When the folding plate 711 moves downward along the arc groove 712, the bracket 71732 moves synchronously with the inwardly retracted spring pin 72, and pushes the control shaft 71734 and the triangular drawer 71733 upward to reset the arc groove 712. At this time, the downwardly moving magnetic sheet 71737 contacts the triangular drawer 71733.

[0059] A magnetic sheet 71737 is fixedly arranged on one side of the surface of the folding plate 711 opposite to the triangular drawer 71733. When the two filter slurry plates 76 are displaced relative to each other, 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 makes a circular motion in the slurry to adsorb the metal contained therein on the magnetic sheet 71737.

[0060] In this embodiment, as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figures 5 to 12 shown, three discharge ports that mate with the slurry retaining ring 714, the coarse stone ring 715, and the fine stone ring 716 are respectively arranged at the bottom of the pulp screening barrel 1. The slurry retained by the slurry retaining ring 714, the coarse stone materials retained by the coarse stone ring 715, and the fine stone materials retained by the fine stone ring 716 are respectively discharged through different discharge ports.

[0061] In this embodiment, as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figures 5 to 12 shown, a ball is rotatably arranged at the outer end of the spring pin 72. When the spring pin 72 makes a circular motion, the ball contacts the convex block 79, which can effectively reduce the friction force and extend the service life.

[0062] In this embodiment, as 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.

[0063] 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.

[0064] A method for using a slurry processing device for shield construction comprises the following steps:

[0065] 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.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] 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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