A multi-source composite contaminated soil remediation pretreatment system and method

Abstract

The present invention provides a multi-source composite contaminated soil remediation pretreatment system and method, belonging to the contaminated soil treatment technical field, comprising a support frame, the upper end of the support frame is fixedly connected to a mixing bin seat, the lower end of the mixing bin seat is fixedly connected to a discharge bin seat, a plurality of mixing and stirring teeth are arranged on the rotating shaft 1, the output end of the motor 1 is connected to one end of the rotating shaft 1, the output end of the motor 2 is connected to one end of a conveying worm, the rotating shaft 1 and the mixing bin seat, and the conveying worm and the support and the discharge bin seat are respectively connected to each other via a slewing bearing, and an isolation unit is arranged in the discharge slot. The present invention solves the problem that when the soil material falls into the mixing bin seat in the existing multi-source composite contaminated soil remediation pretreatment device, part of the soil material will fall into the discharge bin seat, which then causes part of the soil to be unable to be treated, greatly reducing the effect of the device on the treatment of contaminated soil.

Description

Technical Field

[0001] The present invention belongs to the technical field of contaminated soil treatment, and in particular relates to a multi-source composite contaminated soil remediation pretreatment system and method. Background Art

[0002] Soil remediation refers to the use of physical, chemical and biological methods to transfer, absorb, degrade and transform pollutants in the soil, reducing their concentration to an acceptable level, or converting toxic and harmful pollutants into harmless substances.

[0003] Prior art CN220406634U discloses a multi-source composite contaminated soil remediation pretreatment device, including a mixing bin for treating multi-source composite contaminated soil, the bottom of the mixing bin is fixedly connected with a support frame, the top of the mixing bin is fixed with a feeding trough, the internal rotation of the mixing bin is provided with mixing and stirring teeth, and the upper side of the mixing bin is provided with a reagent feeding seat; the bottom of the mixing bin is provided with a discharge bin, the internal rotation of the discharge bin is provided with a conveying worm, and the front side of the discharge bin is fixed with a discharge trough. During the treatment of the contaminated soil by the device, the discharge trough between the mixing bin and the discharge bin is open, so when the soil material falls into the mixing bin, part of the soil material will fall into the discharge bin, which will cause part of the soil to be unable to be treated, greatly reducing the effect of the device on the treatment of the contaminated soil. Summary of the invention

[0004] The present invention provides a multi-source composite contaminated soil remediation pretreatment system and method, which aims to solve the problem that when the soil material falls into the mixing bin seat in the existing multi-source composite contaminated soil remediation pretreatment device, part of the soil material will fall into the discharge bin seat, which will cause part of the soil to be unable to be treated, greatly reducing the effect of the device on the contaminated soil treatment.

[0005] The embodiment of the present invention provides a multi-source composite contaminated soil remediation pretreatment system, comprising a support frame, the upper end of the support frame is fixedly connected to a mixing bin seat, the lower end of the mixing bin seat is fixedly connected to a discharging bin seat, the mixing bin seat and the discharging bin seat are connected through a discharging notch, a rotating shaft 1 is arranged in the mixing bin seat, a plurality of mixing and stirring teeth are arranged on the rotating shaft 1, the right side of the mixing bin seat is fixedly connected to a motor 1, the output end of the motor 1 is connected to one end of the rotating shaft 1, the left side of the lower end of the mixing bin seat is fixedly connected to a support, a conveying worm is arranged between the support and the right side of the discharging bin seat, the right side of the discharging bin seat is fixedly connected to a motor 2, the output end of the motor 2 is connected to one end of the conveying worm, the rotating shaft 1 and the mixing bin seat, and the conveying worm and the support and the discharging bin seat are respectively rotated to each other via a slewing bearing, and an isolation unit is arranged in the discharging notch;

[0006] The isolation unit includes an isolation plate slidably installed in the material discharge slot and an electric telescopic rod fixedly connected to the lower end of the discharge bin seat. The output end of the electric telescopic rod is fixedly connected to one side of the isolation plate via a connecting rod. The isolation plate can completely block the material discharge slot.

[0007] Further, the slewing bearing comprises a steel ring 1, a steel ring 2, a plurality of steel balls, a bearing seat and a pair of leak-proof rings, a circular channel is formed between the inner surface of the steel ring 2 and the outer surface of the steel ring 1, the steel balls are in the circular channel, a pair of leak-proof rings are arranged on both sides of the inner surface of the steel ring 2, a circular gap is reserved between the inner surface of the leak-proof ring and the outer surface of the steel ring 1, a plurality of tracks are reserved at equal intervals on the inner surface of the steel ring 2, a plurality of movable platforms are arranged on the outer surface of the leak-proof ring, and the plurality of movable platforms are movably arranged in a plurality of tracks, the tracks are arranged along the central axis of the steel ring 2 and are skewed in the annular direction, one end of the track is close to the annular protruding wall on the steel ring 2, and the other end of the track is close to the movable channel;

[0008] The amount of oil injected is more than half of the amount of the annular channel. When the movable platform moves in the track, the movable platform pulls the anti-leakage ring to rotate with the center of the second steel ring as the center of the circle, and the movable platform pulls the anti-leakage ring to move along the axial direction of the second steel ring toward the middle of the second steel ring. When the anti-leakage ring rotates and moves, the gas in the annular channel is first pressed out from the gap, and then the excess oil in the annular channel is pressed out from the gap.

[0009] A pair of protruding walls on the two axes of the steel ring are provided with pointers pointing to the anti-leakage ring. A plurality of marking lines are provided on the wall of the anti-leakage ring far from the steel ball. The plurality of marking lines are distributed in a circle shape, and each of the plurality of marking lines indicates 1 to 1 / 5 of the amount of oil injected into the circular channel. When the movable platform is assembled into the track, the pointer points to the marking line 1; when the movable platform moves in the track, the pointer points to the marking lines 1 to 1 / 5 in sequence; when the movable platform moves to the track close to the other end of the movable channel, the pointer points to the marking line 1 / 5.

[0010] Furthermore, a sealing unit is mounted on the side wall of the leak-proof ring, and the sealing unit is used to block or open the gap. A plurality of oil outlets are reserved on the leak-proof ring, and a plurality of leak-proof columns used to block the oil outlets are embedded on the leak-proof ring.

[0011] When rotating the anti-leakage ring and performing oil leakage in the gap, rotate the steel ring in the same direction or in the opposite direction.

[0012] Further, the sealing unit comprises a traction column, a plurality of rotating columns and a sealing sheet, the plurality of rotating columns are screwed on the side wall of the leak-proof ring at equal intervals along the circumferential direction of the leak-proof ring, the plurality of sealing sheets are fixedly connected to the rotating column, the plurality of sealing sheets are arranged at equal intervals along the circumferential direction of the leak-proof ring, the arched surface on the sealing sheet is in close contact with the concave surface on the adjacent sealing sheet, the traction column passes through the leak-proof ring and is fixedly connected to the corresponding rotating column, the traction column pulls the sealing sheet to rotate via the rotating column, the plurality of sealing sheets are in close contact with each other and rotate together, the plurality of sealing sheets are rotated and in close contact with the outer surface of the steel ring 1 and block the gap;

[0013] A toggle post is fixedly connected to the surface of the anti-leakage ring, and the toggle post and the pulling post are arranged in mirror images of each other.

[0014] Furthermore, a spiral beryllium copper wire is hooped on the outer circumference of the rotating column, one end of the spiral beryllium copper wire is fixedly connected to the leak-proof ring, and the other end of the spiral beryllium copper wire is fixedly connected to the sealing plate. When the traction column is rotated, the traction column pulls the sealing plate through the rotating column to rotate and open the gap, and the sealing plate applies force to the spiral beryllium copper wire to change the shape of the spiral beryllium copper wire. When the traction column is released, the force generated by the change in the shape of the spiral beryllium copper wire causes the sealing plate to rotate and block the gap.

[0015] Furthermore, the end of the sealing piece which is farther from the rotating column is fixedly connected to a lead sheet which is used to open the gap automatically when the slewing support rotates.

[0016] Furthermore, an assembly opening is reserved on the axial protrusion of the second steel ring, and the assembly opening is connected to one end of the track close to the protrusion of the second steel ring, and the movable platform can be movably installed in the track through the assembly opening.

[0017] Furthermore, the two steel rings are fixedly connected with an embedding piece on the side wall of each track near one end of the assembly port. When the movable platform moves to the embedding piece, the embedding piece presses the movable platform and changes the shape of the movable platform. At this moment, the movable platform is pressed tightly in the track. When the leak-proof ring pulls the movable platform to continue to move, the movable platform moves through the embedding piece.

[0018] Furthermore, the bearing seat includes a constraint ring 1, a constraint ring 2 and a connecting column. A wall surface of the constraint ring 1 is in contact with a wall surface of the constraint ring 2 and they are fixed to each other via the connecting column. A plurality of arched areas for constraining the steel ball are arranged on the constraint ring 1 and the constraint ring 2. A avoidance opening is reserved in the middle of the arched area and along the axial direction of the steel ring 2, and the steel ball is located in the avoidance opening.

[0019] A multi-source composite contaminated soil remediation pretreatment method comprises the above-mentioned multi-source composite contaminated soil remediation pretreatment system, and further comprises the following steps:

[0020] Step 1: Put the soil material into the mixing bin, the motor starts to operate, the motor drives the rotating shaft to rotate, the rotating shaft drives the mixing and stirring teeth to rotate, and the rotating mixing and stirring teeth are used to crush and mix the soil material;

[0021] Step 2: spraying the agent on the soil material while crushing and mixing the soil material to complete the mixing operation of the soil material;

[0022] Step 3: The electric telescopic rod is extended, and the electric telescopic rod pulls the isolation plate out of the discharge slot through the connecting rod, and then opens the discharge slot so that the soil material in the mixing bin seat falls into the discharge bin seat;

[0023] Step 4: Motor 2 is activated, and the motor 2 drives the conveying worm to move, and the conveying worm discharges the soil material that falls into the discharge bin seat;

[0024] Step 5: After the soil material is discharged, the electric telescopic rod is retracted, and the isolation plate is pushed back to its original position through the connecting rod, and then the discharge slot is blocked. Repeat the above steps to continue to treat the contaminated soil.

[0025] The beneficial effects of the present invention are:

[0026] 1. The present invention is provided with an isolation unit. When material is required to be discharged, the electric telescopic rod is extended, and the electric telescopic rod pulls the isolation plate out of the material discharge slot through the connecting rod, and then opens the material discharge slot so that the soil material in the mixing bin seat falls into the material discharge bin seat for discharge. After the soil material is discharged, the electric telescopic rod contracts, and the isolation plate is pushed back to the original position through the connecting rod, and then the material discharge slot is blocked to prevent the untreated soil from falling into the material discharge bin seat during the mixing of the soil, thereby ensuring that the soil is fully treated, and then ensuring the effect of soil pretreatment.

[0027] 2. The present invention allows the anti-leakage ring to rotate in the steel ring through the installation of the movable platform and the track. During the rotation, the pair of anti-leakage rings can move towards positions close to each other, and then compress the annular channel on the slewing bearing, so that the air and excess oil in the annular channel on the slewing bearing are pressed out from the gap, and then the amount of oil remaining in the annular channel is determined through the indication of the pointer and the marking line, and then the required amount of oil can be accurately injected into the annular channel on the slewing bearing, making the slewing bearing more durable.

[0028] 3. The present invention installs a sealing unit and an oil outlet, uses the sealing unit to open the gap, rotates the leak-proof ring to leak out the gas in the annular channel, then uses the sealing unit to block the gap, pulls out the leak-proof column, and then rotates the leak-proof ring, the oil in the annular channel on the slewing bearing leaks out of the annular channel from the oil outlet, and the oil leaks out of the annular channel on the slewing bearing from the oil outlet, and then the leaked oil is cleaned.

[0029] 4. The present invention adopts the installation of spiral beryllium copper wire and lead sheet, so that when the slewing bearing rotates, the gap opens automatically, so that the annular channel on the slewing bearing can be cooled down. When the slewing bearing stops rotating, the gap closes automatically, and then the debris cannot easily fall into the annular channel from the gap.

[0030] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0032] Figure 1 It is a schematic diagram of the main cross-sectional structure of an embodiment of the present invention;

[0033] Figure 2 It is a schematic diagram of the main structure of an embodiment of the present invention;

[0034] Figure 3 It is a rear view structural schematic diagram of an embodiment of the present invention;

[0035] Figure 4 The three-dimensional structure of the slewing bearing of the embodiment of the present invention is shown in FIG. Figure 1 ;

[0036] Figure 5 It is a schematic diagram of the disassembled structure of the slewing bearing according to an embodiment of the present invention;

[0037] Figure 6 For the embodiment of the present invention Figure 5 A schematic diagram of the structure at M of FIG.

[0038] Figure 7 A schematic diagram of a track structure according to an embodiment of the present invention;

[0039] Figure 8 For the embodiment of the present invention Figure 7 A schematic diagram of the enlarged structure at N;

[0040] Fig. 9 The three-dimensional structure of the slewing bearing of the embodiment of the present invention is shown in FIG. Figure 2 ;

[0041] Fig.10 A schematic diagram of the structure of one side of the anti-leakage ring according to an embodiment of the present invention;

[0042] Fig.11 This is a schematic structural diagram of the other side of the anti-leakage ring according to an embodiment of the present invention;

[0043] Fig.12 It is a partially enlarged structural schematic diagram of a closed unit according to an embodiment of the present invention;

[0044] Figure numerals: 1, mixing bin seat; 2, discharge bin seat; 3, motor 1; 4, rotating shaft 1; 5, mixing and stirring teeth; 6, support; 7, conveying worm; 8, motor 2; 9, slewing bearing; 10, unloading slot; 11, isolation unit; 12, support frame; 91, steel ring 1; 92, steel ring 2; 93, steel ball; 94, bearing seat; 941, restraining ring 1; 942, restraining ring 2; 943, connecting column; 95, leak-proof ring; 96, circular channel; 97, gap; 98, track; 99. movable platform; 910. pointer; 911. marking line; 912. closed unit; 9121. traction column; 9122. rotating column; 9123. sealing plate; 913. oil outlet; 914. leak-proof column; 916. spiral beryllium copper wire; 917. lead sheet; 918. toggle column; 919. assembly port; 920. splice plate; 921. escape port; 922. arched area; 923. movable channel; 111. isolation plate; 112. electric telescopic rod; 113. connecting rod. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of specific embodiments of the present invention. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] See also Figure 1-12The embodiment of the present invention provides a multi-source composite contaminated soil remediation pretreatment system, comprising a support frame (12), the upper end of the support frame (12) is fixedly connected to a mixing bin seat (1), the lower end of the mixing bin seat (1) is fixedly connected to a discharge bin seat (2), the mixing bin seat (1) and the discharge bin seat (2) are connected via a discharge slot (10), a rotating shaft (4) is arranged in the mixing bin seat (1), a plurality of mixing and stirring teeth (5) are arranged on the rotating shaft (4), a motor (3) is fixedly connected to the right side of the mixing bin seat (1), and the output end and the output end of the motor (3) are connected to each other. One end of the rotating shaft (4) is connected, the left side of the lower end of the mixing bin seat (1) is fixedly connected to the support (6), a conveying worm (7) is arranged between the support (6) and the right side of the discharge bin seat (2), the right side of the discharge bin seat (2) is fixedly connected to the motor (8), the output end of the motor (8) is connected to one end of the conveying worm (7), the rotating shaft (4) and the mixing bin seat (1) and the conveying worm (7) and the support (6) and the discharge bin seat (2) are respectively screwed to each other via a slewing bearing (9), and an isolation unit (11) is arranged in the discharge slot (10).

[0047] The soil material is put into the mixing bin seat (1), the motor 1 (3) is activated, the motor 1 (3) drives the rotating shaft 1 (4) to rotate, the rotating shaft 1 (4) drives the mixing and stirring teeth (5) to rotate, the soil material is crushed and mixed by the rotating mixing and stirring teeth (5), and during this period, the chemical is sprayed on the soil material to complete the mixing operation of the soil material. After the mixing is completed, the isolation unit (11) is activated to open the discharge slot (10), and the soil material falls into the discharge bin seat (2), the motor 2 (8) is activated, the motor 2 (8) drives the conveying worm (7) to operate, and the conveying worm (7) discharges the soil material that has fallen into the discharge bin seat (2).

[0048] See also Figure 4 and Figure 5 The slewing bearing (9) comprises a steel ring 1 (91), a steel ring 2 (92), a plurality of steel balls (93), a bearing seat (94) and a pair of leak-proof rings (95); a movable channel (923) is reserved on the outer surface of the steel ring 1 (91) and the inner surface of the steel ring 2 (92), and the plurality of steel balls (93) are movably arranged in the movable channels (923) on the steel ring 1 (91) and the steel ring 2 (92).

[0049] See also Figure 5 and Figure 6The bearing seat (94) includes a constraint ring 1 (941), a constraint ring 2 (942) and a connecting column (943). A wall surface of the constraint ring 1 (941) is in contact with a wall surface of the constraint ring 2 (942). The surface of the constraint ring 1 (941) facing the constraint ring 2 (942) protrudes toward the side away from the constraint ring 2 (942) and forms a plurality of arched areas (922). A avoidance opening (921) is reserved in the middle of each of the arched areas (922) and along the axial direction of the steel ring 2 (92). The number of the arched areas (922) is equal to the number of steel balls (93).

[0050] The structures of the constraint ring 1 (941) and the constraint ring 2 (942) are the same and are mirror images of each other. The constraint ring 1 (941) and the constraint ring 2 (942) are fixedly connected to each other via a connecting column (943); the corresponding arched areas (922) on the constraint ring 1 (941) and the constraint ring 2 (942) surround the outer surface of the steel ball (93) and constrain it, so that the distance between several steel balls (93) remains constant, and the two ends of the steel ball (93) along the axial direction of the steel ring 2 (92) are respectively located in the avoidance openings (921) on the constraint ring 1 (941) and the constraint ring 2 (942).

[0051] See also Figure 4 and Figure 5 The inner surface of the second steel ring (92) and the outer surface of the first steel ring (91) form a circular channel (96), the steel ball (93) is located in the circular channel (96), a pair of leakproof rings (95) are arranged on the inner surface of the second steel ring (92) along the axial direction of the second steel ring (92), a pair of leakproof rings (95) are located on both sides of the steel ball (93) along the axial direction of the second steel ring (92), the leakproof rings (95) are located in the circular channel (96), and a circular gap (97) is reserved between the inner surface of the leakproof ring (95) and the outer surface of the first steel ring (91). The leakproof ring (95) is made of TPE material.

[0052] See also Figure 5 and Figure 6Three movable platforms (99) are arranged on the outer surface of each of the leak-proof rings (95), and the three movable platforms (99) are arranged in a circle at equal intervals. Three pairs of tracks (98) are reserved on the inner surface of the steel ring 2 (92) on both sides of the movable channel (923) in a mirror image. The three tracks (98) on one side of the movable channel (923) are arranged in a circle at equal intervals along the steel ring 2 (92). The three movable platforms (99) on one of the leak-proof rings (95) can be movably arranged in the three tracks (98) on one side of the movable channel (923) on the steel ring 2 (92); the tracks (98) are arranged along the central axis of the steel ring 2 (92) and are skewed in the annular direction. One end of the track (98) is close to the annular protrusion on the steel ring 2 (92), and the other end of the track (98) is close to the movable channel (923). The movable platform (99) and the leak-proof ring (95) are both made of TPE material.

[0053] See also Figure 4 and Figure 8 The protruding wall of the second steel ring (92) is provided with three assembling openings (919) at equal intervals, and the three assembling openings (919) are distributed in a circle, and the three pairs of the assembling openings (919) are respectively connected to one end of the three pairs of tracks (98) close to the protruding wall of the second steel ring (92). When the leakproof ring (95) is assembled, the leakproof ring (95) pulls the movable platform (99) to move, and the movable platform (99) can move to the track (98) through the assembling openings (919), and then the leakproof ring (95) is assembled in the second steel ring (92).

[0054] See also Figure 5 and Figure 7 Before assembling the anti-leakage ring (95), firstly, the annular channel (96) of the slewing bearing (9) is filled with engine oil, and the amount of engine oil injected is more than half of the amount of the annular channel (96) that can accommodate the engine oil. After the engine oil is injected, the pair of anti-leakage rings (95) are assembled in the second steel ring (92); the pair of anti-leakage rings (95) are rotated, and the anti-leakage rings (95) pull the movable platform (99) to move in the track (98). The inclined track (98) guides the movement of the movable platform (99), so that the movable platform (99) slowly moves along the axial direction of the second steel ring (92) while moving in the annular direction along the second steel ring (92), so that the anti-leakage ring (95) also moves along the axial direction of the second steel ring (92) while rotating in the second steel ring (92).

[0055] The pair of anti-leakage rings (95) rotate together, and the pair of anti-leakage rings (95) change their positions toward the steel ball (93), and then can compress the engine oil and gas in the annular channel (96) on the slewing bearing (9). The gas in the annular channel (96) is first compressed and leaks out of the annular channel (96) from the gap (97) between the anti-leakage ring (95) and the steel ring (91). When the gas is released under pressure, the engine oil in the annular channel (96) is then compressed and leaks out of the annular channel (96) from the gap (97).

[0056] See also Figure 4 A pair of protruding walls on the axial direction of the steel ring 2 (92) are provided with pointers (910) pointing to the anti-leakage ring (95), and a plurality of marking lines (911) are provided on the wall of the anti-leakage ring (95) far from the steel ball (93), and the plurality of marking lines (911) are distributed in a circle shape, and the plurality of marking lines (911) each represent 1 to 1 / 5 of the amount of oil injected into the circle channel (96). When the movable platform (99) is assembled into the track (98), the pointer (910) points to the marking line (911) of 1; when the movable platform (99) moves in the track (98), the pointer (910) points to the marking lines (911) of 1 to 1 / 5 in sequence; when the movable platform (99) moves to the other end of the track (98) close to the movable channel (923), the pointer (910) points to the marking line (911) of 1 / 5.

[0057] During the rotation of the anti-leakage ring (95), the marking line (911) that the pointer (910) points to continuously changes and corresponds to the amount of oil injected into the circular channel (96). By rotating the anti-leakage ring (95) to a certain position so that the pointer (910) points to the marking line (911) of the required injection amount, the required amount of oil can be accurately injected into the circular channel (96) on the slewing bearing (9), thereby extending the maintenance period of the slewing bearing (9) and allowing it to work for a longer time.

[0058] When the leak-proof ring (95) is rotated and the oil is leaked in the gap (97), the steel ring (91) is rotated in the same direction or in the opposite direction. During the rotation of the steel ring (91), the engine oil will adhere to its surface, causing the engine oil to flow toward the area where the steel ball (93) and the steel ring (91) are in contact, thereby eliminating small gas clusters in the engine oil and making the injection amount of the engine oil more accurate.

[0059] See also Figure 8The second steel ring (92) is fixedly connected to an inlay piece (920) on the side wall of each track (98) near the assembly port (919), and both ends of the inlay piece (920) along the track (98) are inclined surfaces. When the leakproof ring (95) rotates and pulls the movable platform (99) to move to the inlay piece (920) in the track (98), the inlay piece (920) presses the movable platform (99) and changes the shape of the movable platform (99). At this moment, the movable platform (99) is pressed tightly in the track (98), and then the leakproof ring (95) is rotated, and the leakproof ring (95) pulls the movable platform (99) to move, and then the movable platform (99) can move through the inlay piece (920) and then move in the track (98). When the oil leakage of the annular channel (96) on the slewing bearing (9) ends, the anti-leakage ring (95) is rotated in the reverse direction, and the anti-leakage ring (95) pulls the movable platform (99) to move to the embedded piece (920) again, and then the movable platform (99) is pressed and locked in the track (98), and then the anti-leakage ring (95) is locked in the second steel ring (92).

[0060] More than half of the engine oil is injected into the circular channel (96) on the slewing bearing (9), and a pair of leak-proof rings (95) are assembled in the second steel ring (92). The pair of leak-proof rings (95) are rotated, and the leak-proof rings (95) pull the movable platform (99) to move in the track (98). During the rotation of the leak-proof ring (95) in the second steel ring (92), the leak-proof ring (95) also moves along the axial direction of the second steel ring (92). When the leak-proof ring (95) rotates and moves, the gas in the circular channel (96) is first pressed out from the gap (97), and then the leak-proof ring (95) is rotated and moved. The excess oil in the circular channel (96) is pressed out from the gap (97). During the rotation of the leak-proof ring (95), the marking line (911) that the pointer (910) points to continuously changes and corresponds to the amount of oil injected into the circular channel (96). The leak-proof ring (95) is rotated to a corresponding position so that the pointer (910) points to the marking line (911) of the required injection amount, so that the required amount of oil can be accurately injected into the circular channel (96) on the slewing bearing (9), so that the slewing bearing (9) can work for a longer time and be more durable.

[0061] See also Fig. 9 and Fig.10 The side wall of the leak-proof ring (95) close to the steel ball (93) is equipped with a sealing unit (912), and the gap (97) between the leak-proof ring (95) and the steel ring (91) can be blocked or opened through the sealing unit (912). A pair of oil outlets (913) are reserved on the leak-proof ring (95) in a mirror image, and the leak-proof column (914) is embedded in the position of the pair of oil outlets (913) of the leak-proof ring (95). The oil outlet (913) can be opened by pulling out the leak-proof column (914), and the oil outlet (913) can be blocked by inserting the leak-proof column (914).

[0062] When the annular channel (96) on the slewing bearing (9) is deflated, the sealing unit (912) is first used to open the gap (97), and when the leak-proof ring (95) rotates, the gas in the annular channel (96) is leaked from the gap (97); when the annular channel (96) on the slewing bearing (9) is deflated, the sealing unit (912) is then used to block the gap (97) and extract the leak-proof column (914), and when the leak-proof ring (95) rotates, the oil in the annular channel (96) is leaked from the oil outlet (913), so that the leaked oil can be cleaned. When the leak-proof ring (95) rotates, and the steel ring (91) is rotated, a small group of gas in the oil can be leaked from the oil outlet (913).

[0063] See also Fig.10 , Fig.11 and Fig.12 The sealing unit (912) comprises a traction column (9121), a plurality of rotating columns (9122) and a sealing plate (9123); the plurality of rotating columns (9122) are screwed on the side wall of the leakage-proof ring (95) close to the steel ball (93) at equal intervals along the circumferential direction of the leakage-proof ring (95); the plurality of sealing plates (9123) are respectively fixedly connected to the plurality of rotating columns (9122); the plurality of sealing plates (9123) are arranged at equal intervals along the circumferential direction of the leakage-proof ring (95); the arched surface on the sealing plate (9123) is in close contact with the concave surface on the adjacent sealing plate (9123). The traction column (9121) penetrates the leak-proof ring (95) along the axial direction of the leak-proof ring (95), one end of the traction column (9121) passes through the side of the leak-proof ring (95) farther from the steel ball (93), and the other end of the traction column (9121) is fixedly connected to one end of the corresponding rotating column (9122).

[0064] The traction column (9121) is rotated, and the traction column (9121) pulls the corresponding sealing plate (9123) to rotate via the rotating column (9122), and the sealing plate (9123) then pulls a plurality of sealing plates (9123) to rotate together. When the sealing plate (9123) rotates toward a direction close to the steel ring one (91), the outer surfaces of the plurality of sealing plates (9123) are tightly attached to the outer surface of the steel ring one (91), and then the gap (97) can be blocked; when the sealing plate (9123) rotates toward a side farther from the steel ring one (91), the outer surfaces of the plurality of sealing plates (9123) move away from the outer surface of the steel ring one (91), and then the gap (97) can be opened.

[0065] The anti-leakage ring (95) is fixedly connected to a toggle post (918) on the surface farther from the steel ball (93). The toggle post (918) and the traction post (9121) are arranged in mirror images of each other. The angle between the connecting line between the toggle post (918) and the traction post (9121) and the connecting line between the pair of oil outlets (913) is 90 degrees. During the period of rotating the anti-leakage ring (95) to drain oil, a certain force is required to rotate the anti-leakage ring (95). The anti-leakage ring (95) is conveniently rotated through the mirror-arranged toggle post (918) and the traction post (9121).

[0066] The end of each sealing piece (9123) which is farther from the rotating column (9122) is fixedly connected to the lead sheet (917). When the slewing bearing (9) rotates, the second steel ring (92) pulls the leakproof ring (95) to rotate, the leakproof ring (95) pulls the sealing piece (9123) to rotate, and the sealing piece (9123) pulls the lead sheet (917) to rotate. Since the lead sheet (917) is located at the end of the sealing piece (9123) which is farther from the rotating column (9122), when the sealing piece (9123) rotates, the lead sheet (917) pulls the sealing piece (9123) to rotate toward a direction farther from the first steel ring (91) under the cooperation of the force generated during the circular motion, so that the gap (97) on the slewing bearing (9) is opened. At this moment, the annular channel (96) on the slewing bearing (9) is connected to the outside, thereby cooling the annular channel (96) on the slewing bearing (9).

[0067] A spiral beryllium copper wire (916) is hooped on the outer circumference of each rotating column (9122), one end of the spiral beryllium copper wire (916) is fixedly connected to the leak-proof ring (95), and the other end of the spiral beryllium copper wire (916) is fixedly connected to the sealing plate (9123). When one end of the spiral beryllium copper wire (916) rotates under the action of an external force, the spiral beryllium copper wire (916) will generate a reverse circumferential force. After the external force disappears, the spiral beryllium copper wire (916) returns to its original position along the circumferential direction under the cooperation of the reverse circumferential force. When the circular channel (96) on the slewing bearing (9) is deflated, the traction column (9121) is rotated to open the gap (97), at which time the sealing plate (9123) rotates and pulls the spiral beryllium copper wire (916) to change its shape; when the circular channel (96) on the slewing bearing (9) is deflated, the traction column (9121) is released, and the force generated by the change in the shape of the spiral beryllium copper wire (916) pulls the sealing plate (9123) to rotate in the reverse direction back to its original position, so that the gap (97) is blocked by itself, and then the oil is discharged.

[0068] When the slewing bearing (9) rotates, the lead sheet (917) pulls the sealing sheet (9123) to rotate, and the sealing sheet (9123) pulls the spiral beryllium copper wire (916) to change its shape. When the slewing bearing (9) stops rotating, the force generated by the change in shape of the spiral beryllium copper wire (916) pulls the sealing sheet (9123) to rotate in the opposite direction and return to its original position, so that the gap (97) is blocked by itself, and then the debris cannot easily fall from the gap (97) into the circular channel (96) on the slewing bearing (9).

[0069] When the annular channel (96) on the slewing bearing (9) is deflated, the traction column (9121) is first used to open the gap (97), and when the leak-proof ring (95) rotates, the gas in the annular channel (96) is leaked from the gap (97); when the annular channel (96) on the slewing bearing (9) is deflated, the traction column (9121) is then used to block the gap (97) and the leak-proof column (914) is pulled out, and the spiral beryllium copper wire (916) applies force to the sealing sheet (9123) to close the gap (97) automatically, and when the leak-proof ring (95) rotates, the oil in the annular channel (96) is leaked from the oil outlet (913), and then the leaked oil is cleaned.

[0070] The isolation unit (11) comprises an isolation plate (111) slidably installed in the material discharge slot (10) and an electric telescopic rod (112) fixedly connected to the lower end of the material discharge bin seat (2); the output end of the electric telescopic rod (112) is fixedly connected to one side of the isolation plate (111) via a connecting rod (113); and the isolation plate (111) can completely cover the material discharge slot (10).

[0071] When it is necessary to discharge the material, the electric telescopic rod (112) is extended, and the electric telescopic rod (112) pulls the isolation plate (111) out of the discharge slot (10) via the connecting rod (113), and then opens the discharge slot (10), so that the soil material in the mixing bin seat (1) falls into the discharge bin seat (2) for discharge. After the soil material is discharged, the electric telescopic rod (112) is retracted, and the isolation plate (111) is pushed back to the original position via the connecting rod (113), and then the discharge slot (10) is blocked, so that the untreated soil is prevented from falling into the discharge bin seat (2) when mixing the soil, thereby ensuring that the soil is fully treated, and then ensuring the effect of soil pretreatment.

[0072] A multi-source composite contaminated soil remediation pretreatment method comprises the above-mentioned multi-source composite contaminated soil remediation pretreatment system, and further comprises the following steps:

[0073] Step 1: soil material is put into the mixing bin (1), the motor 1 (3) is activated, the motor 1 (3) drives the rotating shaft 1 (4) to rotate, the rotating shaft 1 (4) drives the mixing and stirring teeth (5) to rotate, and the rotating mixing and stirring teeth (5) are used to crush and mix the soil material;

[0074] Step 2: spraying the agent on the soil material while crushing and mixing the soil material to complete the mixing operation of the soil material;

[0075] Step 3: The electric telescopic rod (112) is extended, and the electric telescopic rod (112) pulls the isolation plate (111) out of the material discharge slot (10) via the connecting rod (113), and then opens the material discharge slot (10) so that the soil material in the mixing bin seat (1) falls into the material discharge bin seat (2);

[0076] Step 4: The motor 2 (8) is activated, and the motor 2 (8) drives the conveying worm (7) to move, and the conveying worm (7) discharges the soil material that has fallen into the discharge bin seat (2);

[0077] Step 5: After the soil material is discharged, the electric telescopic rod (112) is retracted, and the isolation plate (111) is pushed back to the original position via the connecting rod (113), and then the discharge slot (10) is blocked, and the above steps are repeated to continuously treat the contaminated soil.

[0078] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of 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 multi-source composite contaminated soil remediation pretreatment system, comprising a support frame (12), the upper end of the support frame (12) is fixedly connected to a mixing bin seat (1), the lower end of the mixing bin seat (1) is fixedly connected to a discharge bin seat (2), the mixing bin seat (1) and the discharge bin seat (2) are connected via a discharge slot (10), a rotating shaft (4) is arranged in the mixing bin seat (1), a plurality of mixing and stirring teeth (5) are arranged on the rotating shaft (4), the right side of the mixing bin seat (1) is fixedly connected to a motor (3), the output end of the motor (3) is connected to one end of the rotating shaft (4), the left side of the lower end of the mixing bin seat (1) is fixedly connected to a support (6), a conveying worm (7) is arranged between the support (6) and the right side of the discharge bin seat (2), the right side of the discharge bin seat (2) is fixedly connected to a motor (8), the output end of the motor (8) is connected to one end of the conveying worm (7), characterized in that: The rotating shaft 1 (4) and the mixing bin seat (1) as well as the conveying worm (7) and the support (6) and the discharge bin seat (2) are respectively connected to each other by rotation via a slewing bearing (9), and an isolation unit (11) is installed in the discharge slot (10); The isolation unit (11) comprises an isolation plate (111) slidably mounted in the material discharge slot (10) and an electric telescopic rod (112) fixedly connected to the lower end of the material discharge bin seat (2); the output end of the electric telescopic rod (112) is fixedly connected to one side of the isolation plate (111) via a connecting rod (113); and the isolation plate (111) can completely cover the material discharge slot (10); The slewing bearing (9) comprises a steel ring 1 (91), a steel ring 2 (92), a plurality of steel balls (93), a bearing seat (94) and a pair of leakproof rings (95); an inner surface of the steel ring 2 (92) and an outer surface of the steel ring 1 (91) form a circular channel (96); the steel balls (93) are located in the circular channel (96); a pair of leakproof rings (95) are arranged on both sides of the inner surface of the steel ring 2 (92); a circular gap is reserved between the inner surface of the leakproof ring (95) and the outer surface of the steel ring 1 (91). (97), a plurality of tracks (98) are reserved at even intervals on the inner surface of the second steel ring (92), a plurality of movable platforms (99) are arranged on the outer surface of the leakproof ring (95), and the plurality of movable platforms (99) are movably arranged in the plurality of tracks (98), the tracks (98) are arranged along the central axis of the second steel ring (92) and are inclined in the circumferential direction, one end of the tracks (98) is close to the circumferential protruding wall on the second steel ring (92), and the other end of the tracks (98) is close to the movable channel (923); The amount of oil injected is more than half of the amount of the annular channel (96). When the movable platform (99) moves in the track (98), the movable platform (99) pulls the leak-proof ring (95) to rotate with the center of the second steel ring (92) as the center of the circle, and the movable platform (99) pulls the leak-proof ring (95) to move along the axial direction of the second steel ring (92) toward the middle of the second steel ring (92). When the leak-proof ring (95) rotates and moves, the gas in the annular channel (96) is first pressed out from the gap (97), and then the excess oil in the annular channel (96) is pressed out from the gap (97); A pair of protruding walls on the axial direction of the second steel ring (92) are provided with pointers (910) pointing to the anti-leakage ring (95); a plurality of marking lines (911) are provided on the wall of the anti-leakage ring (95) farther from the steel ball (93); the plurality of marking lines (911) are distributed in a circle shape, and the plurality of marking lines (911) each represent 1 to 1 / 5 of the amount of oil injected into the circular channel (96); when the movable platform (99) is assembled into the track (98), the pointer (910) points to the marking line (911) of 1; when the movable platform (99) moves in the track (98), the pointer (910) points to the marking lines (911) of 1 to 1 / 5 in sequence; when the movable platform (99) moves to the track (98) close to the other end of the movable channel (923), the pointer (910) points to the marking line (911) of 1 / 5.

2. A multi-source composite contaminated soil remediation pretreatment system according to claim 1, characterized in that: A sealing unit (912) is mounted on the side wall of the leak-proof ring (95), and the sealing unit (912) is used to block or open the gap (97). A plurality of oil outlets (913) are reserved on the leak-proof ring (95), and a plurality of leak-proof columns (914) used to block the oil outlets (913) are embedded on the leak-proof ring (95); When the leak-proof ring (95) is rotated and the oil is drained in the gap (97), the steel ring (91) is rotated in the same direction or in the reverse direction.

3. A multi-source composite contaminated soil remediation pretreatment system according to claim 2, characterized in that: The sealing unit (912) comprises a traction column (9121), a plurality of rotating columns (9122) and a sealing sheet (9123); the plurality of rotating columns (9122) are screwed onto the side wall of the leak-proof ring (95) at equal intervals along the circumferential direction of the leak-proof ring (95); the plurality of sealing sheets (9123) are fixedly connected to the rotating columns (9122); the plurality of sealing sheets (9123) are arranged at equal intervals along the circumferential direction of the leak-proof ring (95); and the arches on the sealing sheets (9123) are arranged to prevent the leak-proof ring (95) from leaking. The surface of the sealing sheet (9123) is in close contact with the concave surface on the adjacent sealing sheet (9123), the traction column (9121) passes through the anti-leakage ring (95) and is fixedly connected to the corresponding rotating column (9122), the traction column (9121) pulls the sealing sheet (9123) to rotate via the rotating column (9122), a plurality of the sealing sheets (9123) are in close contact with each other and rotate together, and a plurality of the sealing sheets (9123) rotate and are in close contact with the outer surface of the steel ring (91) and block the gap (97); A toggle post (918) is fixedly connected to the surface of the leak-proof ring (95), and the toggle post (918) and the traction post (9121) are arranged in mirror images of each other.

4. A multi-source composite contaminated soil remediation pretreatment system according to claim 3, characterized in that: The outer circumference of the rotating column (9122) is hooped with a spiral beryllium copper wire (916), one end of the spiral beryllium copper wire (916) is fixedly connected to the leak-proof ring (95), and the other end of the spiral beryllium copper wire (916) is fixedly connected to the sealing plate (9123). When the traction column (9121) is rotated, the traction column (9121) pulls the sealing plate (9123) through the rotating column (9122) to rotate and open the gap (97). The sealing plate (9123) applies force to the spiral beryllium copper wire (916) and changes the shape of the spiral beryllium copper wire (916). When the traction column (9121) is released, the force generated by the change in the shape of the spiral beryllium copper wire (916) causes the sealing plate (9123) to rotate and block the gap (97).

5. A multi-source composite contaminated soil remediation pretreatment system according to claim 4, characterized in that: The end of the sealing piece (9123) which is farther from the rotating column (9122) is fixedly connected to a lead sheet (917) which is used to open the gap (97) automatically when the slewing bearing (9) rotates.

6. The multi-source composite contaminated soil remediation pretreatment system according to claim 1 is characterized by: An assembly opening (919) is reserved on the axial protruding wall of the second steel ring (92), and the assembly opening (919) is connected to one end of the track (98) close to the protruding wall of the second steel ring (92). The movable platform (99) is movably installed in the track (98) through the assembly opening (919).

7. A multi-source composite contaminated soil remediation pretreatment system according to claim 6, characterized in that: The second steel ring (92) is fixedly connected to an embedding piece (920) on the side wall of each track (98) close to the assembly opening (919). When the movable platform (99) moves to the embedding piece (920), the embedding piece (920) presses the movable platform (99) and changes the shape of the movable platform (99). At this time, the movable platform (99) is pressed tightly in the track (98). When the leak-proof ring (95) pulls the movable platform (99) to move, the movable platform (99) moves through the embedding piece (920).

8. The multi-source composite contaminated soil remediation pretreatment system according to claim 1 is characterized by: The bearing seat (94) comprises a restraining ring 1 (941), a restraining ring 2 (942) and a connecting column (943); a wall surface of the restraining ring 1 (941) is in contact with a wall surface of the restraining ring 2 (942) and they are fixedly connected to each other via the connecting column (943); a plurality of arched areas (922) for restraining the steel ball (93) are arranged on the restraining ring 1 (941) and the restraining ring 2 (942); an escape opening (921) is reserved in the middle of the arched area (922) and along the axial direction of the steel ring 2 (92); the steel ball (93) is located in the escape opening (921).

9. A method for remediation pretreatment of multi-source composite contaminated soil, comprising a system for remediation pretreatment of multi-source composite contaminated soil according to claim 1, characterized in that: It also includes the following steps: Step 1: soil material is put into the mixing bin (1), motor 1 (3) is activated, motor 1 (3) drives rotating shaft 1 (4) to rotate, rotating shaft 1 (4) drives mixing and stirring teeth (5) to rotate, and the rotating mixing and stirring teeth (5) are used to crush and mix the soil material; Step 2: spraying the agent on the soil material while crushing and mixing the soil material to complete the mixing operation of the soil material; Step 3: the electric telescopic rod (112) is extended, and the electric telescopic rod (112) pulls the isolation plate (111) out of the material discharge slot (10) via the connecting rod (113), and then opens the material discharge slot (10) so that the soil material in the mixing bin (1) falls into the material discharge bin (2); Step 4: The second motor (8) is activated, and the second motor (8) drives the conveying worm (7) to move, and the conveying worm (7) discharges the soil material that has fallen into the discharge bin seat (2); Step 5: After the soil material is discharged, the electric telescopic rod (112) is retracted, and the isolation plate (111) is pushed back to the original position via the connecting rod (113), and then the discharge slot (10) is blocked, and the above steps are repeated to continuously treat the contaminated soil.

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