Horizontal directional crossing construction waste mud recycling system and method

Abstract

The invention relates to the technical field of waste slurry recycling and reusing, in particular to a horizontal directional crossing construction waste slurry recycling and reusing system and method.The horizontal directional crossing construction waste slurry recycling and reusing system comprises a penetrating treatment cylinder, a treatment mechanism is installed on the treatment cylinder, and a horizontal rod is installed at the bottom in the treatment cylinder; a rotating shaft which extends in the height direction of the treatment cylinder and is matched with the treatment mechanism is rotationally mounted on the horizontal rod through a bearing; in the reciprocating vibration process of the screening frame, mud and gravel in the mud can be turned over, the gravel can make full contact with sprayed water flow, the surface of the gravel can be cleaned more thoroughly, meanwhile, mud blocks can be dissolved in the mud, and the mud blocks can be cleaned more thoroughly. And in the vibration process, gravels clamped in meshes of the screening net can be vibrated out of the meshes of the screening net through inertia, and then the possibility that the meshes of the screening net are blocked by the gravels is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of waste mud recycling and reuse, and in particular to a system and method for recycling waste mud in horizontal directional crossing construction. Background Art

[0002] Horizontal directional crossing construction refers to a method of constructing a pipeline or pipeline that uses special equipment and pipelines to cross the working pipeline horizontally from the starting point to the end point without excavating the road surface or other buildings.

[0003] In the above-mentioned process of drilling and excavating pipelines, in order to support the pipelines during drilling, reduce the friction between the drill bit and the soil, and clear the rocks and gravel during drilling, it is often necessary to pump mud into the drill bit during drilling. In some hard soil layers, in order to increase the suspension capacity of the mud and reduce the problem of mud blockage, crushed sand and gravel are often filled into the mud.

[0004] After drilling is completed, in order to save the use of mud, reduce material waste, and protect the environment, the mud after drilling is often recycled. Since external gravel and the like will inevitably enter the mud during the drilling process, it is necessary to screen and recycle the external gravel and mud during the mud recycling process. For example, the patent application with publication number CN114212963B discloses a recycling device and recycling method for waste mud from highway construction. The mud enters the screening component through the feed port, the dilution component dilutes its concentration, and the screening component screens out stones in the mud. The screened muddy water flows along the slope to the primary sedimentation component on the ground. After sedimentation, the upper clear muddy water enters the secondary sedimentation component in the sedimentation pit to continue sedimentation, and the mud precipitated at the bottom can be taken out using the lifting component. At the same time, the clean water of the primary sedimentation component is filtered through the first filter component to further remove impurities. The upper clean water of the secondary sedimentation component passes through the sump and passes through the second filter component again to finally obtain recyclable clean water. Due to the use of a multi-stage sedimentation and filtration process, the solid matter in the mud is effectively separated, the mud recycling efficiency is improved, and pollutant emissions are reduced.

[0005] However, the above-mentioned prior art still has the following problems in the process of recycling waste mud: 1. When drilling some clay layers, the mud has high viscosity and is easy to adhere to the external gravel. When diluting and screening the above-mentioned mud, the mud is not stirred, resulting in the mud still being adhered to the external gravel and discharged to the outside of the equipment, affecting the screening and recovery effect of the mud.

[0006] 2. The screen was not dredged during the above screening process, resulting in the possibility that sand and gravel in the mud with a diameter close to the screen mesh diameter may block the screen mesh, affecting the rate at which the diluted mud passes through the screen. Summary of the invention

[0007] In order to solve the above technical problems, the present application provides a system and method for recycling waste mud in horizontal directional crossing construction, which adopts the following technical solutions: In the first aspect, a horizontal directional crossing construction waste mud recovery and reuse system includes a penetrating processing cylinder, on which a processing mechanism is installed, a horizontal rod is installed at the bottom of the processing cylinder, and a rotating shaft extending along the height direction of the processing cylinder and cooperating with the processing mechanism is rotatably installed on the horizontal rod through a bearing.

[0008] The processing mechanism comprises: a dilution component which is arranged on the top of the processing cylinder and performs dilution processing on the mud.

[0009] The screening frames are evenly arranged in multiples along the height direction of the processing cylinder and reciprocate along the height direction of the rotating shaft to screen the sand and gravel in the mud.

[0010] The vibrating frame is arranged on the rotating shaft and corresponds to the screening frame one by one and rotates along the rotating shaft to prevent the gravel from being stuck inside the screening frame.

[0011] Preferably, the dilution assembly comprises: a dilution cylinder installed on the top of the processing cylinder, and a leakage groove matching the inside of the processing cylinder is opened at the bottom of the dilution cylinder.

[0012] The rotating coupling shaft extends along the height direction of the dilution barrel and is installed at the bottom of the dilution barrel through a bearing. The rotating coupling shaft is connected to the rotating shaft through a belt transmission mode.

[0013] The rotating connecting frame is installed on the rotating connecting shaft, and a plurality of toggle connecting rods are evenly installed at the bottom of the rotating connecting frame along the length direction thereof.

[0014] Preferably, the screening frame comprises an annular frame sleeved on a rotating shaft, a plurality of circumferentially evenly distributed support frames are installed on the circumferential surface of the annular frame, an annular frame which slides back and forth along the height direction of the inner wall of the processing cylinder is installed at one end of the support frame away from the annular frame, a screening net is arranged inside the fan-shaped structure formed by the annular frame, the annular frame and adjacent support frames, and the diameter of the screening net gradually decreases from the top of the processing cylinder to the bottom of the processing cylinder.

[0015] Preferably, a plurality of groups of bidirectional threads corresponding to the annular frame are arranged on the circumferential surface of the rotating shaft, and the annular frame and the bidirectional threads cooperate with each other and are installed on the rotating shaft through a threaded connection.

[0016] Preferably, the rotating shaft is provided with a plurality of rotating frames for limiting sliding movement, a plurality of toggle rods evenly distributed along the length direction of the rotating frame are installed at the bottom of the rotating frame, a supporting connecting rod is arranged at the bottom of the rotating frame, one end of the supporting connecting rod away from the rotating frame rests on the annular frame, and a spray pipe is symmetrically installed on the rotating frame along the length direction of the rotating frame.

[0017] Preferably, the vibration frame is composed of an annular block rotatably mounted on a rotating shaft via a bearing, a plurality of circumferentially evenly distributed horizontal cross bars are mounted on the circumferential surface of the annular block, and a plurality of vibration rods matching the screening frame are evenly arranged on the horizontal cross bars along their length direction.

[0018] Preferably, the horizontal cross bars corresponding to the same annular block and the end away from the corresponding annular block are jointly equipped with an annular rack plate, a plurality of annular grooves for making way for the annular rack plate are opened on the inner wall of the processing cylinder, a connecting protrusion is arranged on the top of the outer wall of the processing cylinder, a linkage rod extending along the height direction of the processing cylinder is rotatably installed on the connecting protrusion through a bearing, and a plurality of gears meshing with the corresponding annular rack plate are installed on the linkage rod.

[0019] Preferably, the linkage rod and the rotating shaft are connected via a belt transmission, and the diameter of the pulley on the linkage rod is larger than the diameter of the pulley on the rotating shaft.

[0020] Preferably, the outer wall of the processing cylinder is provided with through grooves corresponding to the screening frames one by one, a sealing plate for blocking the through grooves is slidably provided on the outer wall of the processing cylinder, and a driving rod is installed on the sealing plate.

[0021] The second aspect is a method for recycling and reusing waste mud in horizontal directional crossing construction, comprising the following steps: S1: dilution treatment, pouring the mud into a dilution cylinder and adding water simultaneously to dilute the mud, and the diluted mud enters the processing cylinder through a leakage trough.

[0022] S2: stirring treatment, the diluted mud enters the inner wall of the processing cylinder and falls onto the screening frame, at which time the rotating shaft rotates through the rotating frame and the toggle rod to stir the mud on the screening frame, and at the same time, water is added to the inside of the processing cylinder.

[0023] S3: Screening process: the slurry is screened on the screening frame. The gravel larger than the screening diameter of the screening frame remains on the corresponding screening frame, and the gravel smaller than the diameter of the corresponding screening frame enters the next screening frame with the slurry. The above actions are repeated until the screening is completed.

[0024] S4: Collection and processing: the slurry after screening and dilution is recovered at the bottom of the treatment cylinder, and the sand and gravel left after screening are recovered through the through slot.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. In the dilution component designed in the present invention, during the dilution process of the mud inside the dilution cylinder, the rotating connecting shaft cooperates with the rotating connecting frame and the toggle connecting rod to stir the mud and water, so that the mud and water are fully diluted and mixed, thereby ensuring the dilution and mixing effect of the mud. At the same time, the toggle connecting rod can also toggle the gravel in the mud, so that the stubborn mud blocks attached to the surface of the gravel in the mud fall off from the gravel, thereby reducing the attachment of mud blocks on the surface of the gravel, so that the screened gravel will not adhere to the mud blocks, and at the same time the fallen mud blocks are redissolved in the mud, thereby reducing the loss of mud and ensuring the mud concentration.

[0026] 2. The screening frame designed in the present invention can stir the mud and the gravel in the mud during the reciprocating vibration process, so that the gravel can fully contact with the jetted water flow, so that the surface of the gravel can be cleaned more cleanly, and the mud blocks can be dissolved in the mud. In addition, during the vibration process, the gravel stuck in the mesh of the screening net can be vibrated out of the mesh of the screening net by inertia, thereby reducing the possibility of gravel clogging the mesh of the screening net. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the first viewing angle of the present invention.

[0028] Figure 2 It is a schematic diagram of the internal three-dimensional structure of the present invention.

[0029] Figure 3 It is a schematic diagram of the internal three-dimensional structure of the dilution component of the present invention.

[0030] Figure 4 It is a schematic diagram of the three-dimensional installation structure between the annular frame, the annular frame and the linkage rod etc. of the present invention.

[0031] Figure 5 The present invention Figure 4 A partial enlarged view of point A.

[0032] Figure 6 The present invention Figure 4 A partial enlarged view of point B.

[0033] Figure 7 It is a structural schematic diagram of the second viewing angle of the present invention.

[0034] Figure 8 The present invention Figure 7 A partial enlarged view of point C.

[0035] Fig. 9 The present invention is a flow chart of the method for recycling and reusing waste mud in horizontal directional crossing construction.

[0036] Explanation of the reference numerals: 1. treatment cylinder; 11. through groove; 12. sealing plate; 13. driving rod; 2. treatment mechanism; 21. dilution assembly; 211. dilution cylinder; 212. rotating shaft; 213. rotating frame; 214. toggle connecting rod; 22. screening frame; 221. annular frame; 222. supporting frame; 223. annular frame; 23. vibrating frame; 231. annular block; 232. horizontal cross bar; 233. vibrating rod; 234. annular rack plate; 235. linkage rod; 236. gear; 3. horizontal rod; 4. rotating shaft; 41. rotating frame; 42. toggle rod; 43. supporting connecting rod; 44. spray pipe. DETAILED DESCRIPTION

[0037] The following is combined with Figures 1 to 9 This application is described in further detail.

[0038] The embodiment of the present application discloses a system and method for recycling waste mud in horizontal directional crossing construction, which can dilute and screen the mud, and at the same time separate the gravel adhering to the stubborn mud blocks in the mud from the mud, so as to separate the mud and the gravel and recycle them.

[0039] Embodiment 1: Reference Figure 1 as well as Figure 2 A horizontal directional crossing construction waste mud recovery and reuse system includes a penetrating processing cylinder 1, a processing mechanism 2 is installed on the processing cylinder 1, a horizontal rod 3 is installed at the bottom of the processing cylinder 1, and a rotating shaft 4 extending along the height direction of the processing cylinder 1 and cooperating with the processing mechanism 2 is rotatably installed on the horizontal rod 3 through a bearing.

[0040] The processing mechanism 2 comprises: a dilution component 21, which is arranged on the top of the processing cylinder 1 and performs a dilution process on the slurry.

[0041] A plurality of screening frames 22 are evenly arranged along the height direction of the processing cylinder 1 and reciprocately vibrate along the height direction of the rotating shaft 4 to screen the sand and gravel in the mud.

[0042] The vibration frame 23 is arranged on the rotating shaft 4 and corresponds to the screening frame 22 one by one and rotates along the rotating shaft 4 to prevent the gravel from being stuck inside the screening frame 22 .

[0043] The slurry and the gravel in the slurry can be turned over during the reciprocating vibration of the screening frame 22, and the gravel at the bottom of the slurry on the screening frame 22 can be turned over upward, ensuring that the gravel at different positions in the slurry can fully contact with the jetted water flow, so that the surface of the gravel can be cleaned more cleanly, and at the same time, the stubborn mud blocks attached to the surface of the gravel can be dissolved in the mud, and the gravel stuck in the mesh of the screening net can be vibrated out of the mesh of the screening net by inertia during the vibration process, thereby reducing the possibility of gravel clogging the mesh of the screening net.

[0044] Reference Figure 3 The dilution assembly 21 includes: a dilution cylinder 211 installed on the top of the processing cylinder 1, and a leakage groove matching the inside of the processing cylinder 1 is opened at the bottom of the dilution cylinder 211.

[0045] The rotating shaft 212 extends along the height direction of the dilution cylinder 211 and is installed at the bottom of the dilution cylinder 211 through a bearing. The rotating shaft 212 is connected to the rotating shaft 4 through a belt transmission.

[0046] The rotating connecting frame 213 is installed on the rotating connecting shaft 212, and a plurality of toggle connecting rods 214 are evenly installed at the bottom of the rotating connecting frame 213 along the length direction thereof.

[0047] During specific operation, the mud to be recovered is thrown into the dilution cylinder 211, and water is added to the dilution cylinder 211 at the same time. The water in the dilution cylinder 211 can dilute the mud inside. The rotating shaft 4 is driven to rotate by an external driving motor (not shown in the figure). During the rotation of the rotating shaft 4, the rotating coupling 212 is driven to rotate by a belt transmission method. During the rotation of the rotating coupling 212, the rotating connecting frame 213 drives the toggle connecting rod 214 to rotate circumferentially around the rotating coupling 212, and then the toggle connecting rod 214 can stir the mud in the dilution process, so that the water and the mud are fully integrated, thereby ensuring the dilution effect of the mud.

[0048] In addition, the moving connecting rod 214 can also move the gravel in the mud, providing friction for the gravel surface, so that the stubborn mud blocks attached to the gravel surface in the mud can fall off from the gravel, thereby reducing the adhesion of mud blocks on the gravel surface, so that the screened gravel will not adhere to mud blocks, ensuring that the gravel surface is smooth and tidy without wasting mud blocks, preparing for the subsequent use of the gravel.

[0049] At the same time, lowering the concentration of the mud can reduce the possibility of mud clogging the screening frame 22. At the same time, cleaning and dissolving the mud blocks can avoid the possibility of the mud blocks adhering to the screening frame 22 due to excessive viscosity, causing the screening frame 22 to be blocked. The detached mud blocks are redissolved in the mud, increasing the mud content of the mud, reducing the loss of the mud, and preparing for the subsequent recycling and reuse of the mud.

[0050] The diluted slurry leaks into the processing cylinder 1 through the leakage trough.

[0051] Reference Figure 4 as well as Figure 5The screening frame 22 includes an annular frame 221 sleeved on the rotating shaft 4, and a plurality of circumferentially evenly distributed support frames 222 are installed on the circumferential surface of the annular frame 221. An annular frame 223 that slides back and forth along the height direction of the inner wall of the processing cylinder 1 is installed at one end of the support frame 222 away from the annular frame 221. A screening net is arranged inside the fan-shaped structure formed by the annular frame 223, the annular frame 221 and adjacent support frames 222, and the diameter of the screening net gradually decreases from the top of the processing cylinder 1 to the bottom of the processing cylinder 1.

[0052] Reference Figures 4 to 6 A plurality of rotating frames 41 are provided on the upper limit sliding of the rotating shaft 4, a plurality of toggle rods 42 evenly distributed along the length direction of the rotating frame 41 are installed at the bottom of the rotating frame 41, a supporting connecting rod 43 is provided at the bottom of the rotating frame 41, and one end of the supporting connecting rod 43 away from the rotating frame 41 rests on the annular frame 221, and a spray pipe 44 is symmetrically installed on the rotating frame 41 along the length direction thereof.

[0053] The support frame 222 is made of rubber, and the spray pipe 44 is connected to the existing water pump (not shown) at the starting position. The screening net is an existing steel wire mesh, which is common knowledge, so it is not described here. In order to avoid the steel wire mesh blocking the parts of the processing cylinder 1 and affecting the layout display of the internal parts, it is not shown in the figure. During the specific operation, the mud falls on the screening net after being diluted, and the annular frame 221 is driven by an external drive to reciprocate up and down along the rotating shaft 4. During the reciprocating movement of the annular frame 221 along the rotating shaft 4, the annular frame 223 is driven to reciprocate up and down through the support frame 222. The annular frame 221 can drive the screening net to oscillate up and down through the cooperation between the support frame 222 and the annular frame 223. During the reciprocating oscillation of the screening net, the gravel in the mud can be driven to sway back and forth, and then the mud and the gravel in the mud can be turned over during the reciprocating vibration of the screening frame 22. In this process, the mud and the gravel smaller than the diameter of the screening net fall down to the next screening net through the screening net.

[0054] Since the gravity of the gravel in the mud is greater than that of the mud and the concentration of the mud decreases after dilution, the gravel is easy to sink to the bottom. Therefore, when the mud falls on the screening net, the gravel in the mud falls on the screening net first, which may cause the gravel to block the screening net. In the above-mentioned shaking method, the mud and the gravel in the mud can be turned over, so that the mesh of the screening net can be continuously opened, reducing the probability of the mesh closing of the screening net, ensuring that the mud and the gravel smaller than the diameter of the screening net cannot quickly and effectively leak to the next screening net.

[0055] At this time, the gravel remaining on the screen can be turned over. During the turning process, the gravel can collide and rub against each other, and the mud blocks attached to the surface of the gravel can be further removed. At this time, the existing water pump is turned on to spray water on the corresponding screen. The water can rinse the gravel remaining on the screen during the spraying process. During the turning process, the gravel is in more complete contact with the water flow, so that the surface of the gravel is cleaned more cleanly. At the same time, the mud blocks can be dissolved in the mud under the action of the spraying water flow. In the process of vibration, the gravel stuck in the mesh of the screen can be vibrated out of the mesh of the screen by inertia, thereby reducing the possibility of gravel clogging the mesh of the screen.

[0056] During the above process, the rotating shaft 4 can also drive the rotating frame 41 to rotate during its rotation. During the rotation of the rotating frame 41, the toggle rod 42 can be driven to rotate circumferentially around the rotating shaft 4. During the circumferential rotation of the toggle rod 42, the gravel can be toggled to provide friction for the surface of the gravel, so that the stubborn mud blocks remaining on the surface of the gravel in the mud can fall off the gravel, thereby reducing the adhesion of mud blocks on the surface of the gravel, and reducing the possibility of mud blocks adhering to the screened gravel, ensuring the smoothness and cleanliness of the gravel surface without wasting mud blocks, preparing for the subsequent recycling and reuse of the gravel.

[0057] During the up and down reciprocating movement of the annular frame 221, the supporting connecting rod 43 drives the rotating frame 41 to synchronously reciprocate up and down along the rotating shaft 4, that is, the distance between the rotating frame 41 and the annular frame 221 is always a certain value, and the rotating frame 41 can slide along the rotating shaft 4, that is, the possibility of collision between the annular frame 221 and the toggle rod 42 during the up and down reciprocating movement is avoided.

[0058] The mud that falls to the next screening net repeats the above actions with the gravel inside it to perform multiple screening processes on the expected gravel inside the mud, so that the gravel is distributed on the corresponding screening nets in order from large to small in diameter. The mud can then be graded and screened in the above manner, and the final mud is fine and has a low gravel content, and the gravel obtained can be recycled.

[0059] A plurality of groups of bidirectional threads corresponding to the annular frame 221 are arranged on the circumferential surface of the rotating shaft 4 , and the annular frame 221 and the bidirectional threads cooperate with each other and are installed on the rotating shaft 4 through a threaded connection.

[0060] During specific operation, the rotating shaft 4 can also drive the annular frame 221 to reciprocate up and down on the rotating shaft 4 through the bidirectional thread during rotation, and then the annular frame 221 can also reciprocate up and down along the rotating shaft 4 through the bidirectional thread without using driving force.

[0061] Reference Figures 4 to 6The vibration frame 23 is composed of an annular block 231 rotatably mounted on the rotating shaft 4 through a bearing, and a plurality of circumferentially evenly distributed horizontal cross bars 232 are mounted on the circumferential surface of the annular block 231, and a plurality of vibration rods 233 matching the screening frame 22 are evenly arranged on the horizontal cross bar 232 along its length direction.

[0062] The horizontal cross bar 232 corresponding to the same annular block 231 and the end away from the corresponding annular block 231 are jointly equipped with an annular rack plate 234, and a plurality of annular grooves for making way for the annular rack plate 234 are opened on the inner wall of the processing cylinder 1. A connecting protrusion is arranged on the top of the outer wall of the processing cylinder 1, and a linkage rod 235 extending along the height direction of the processing cylinder 1 is rotatably installed on the connecting protrusion through a bearing, and a plurality of gears 236 meshing with the corresponding annular rack plate 234 are installed on the linkage rod 235.

[0063] The linkage rod 235 is connected to the rotating shaft 4 by belt transmission, and the diameter of the pulley on the linkage rod 235 is larger than the diameter of the pulley on the rotating shaft 4 .

[0064] The annular groove and the annular rack plate 234 are waterproofed, that is, the mud and water inside the cylinder 1 will not flow out from the annular groove, and the vibrating rod 233 is used to dredge the mesh of the screening net, and the support frame 222 is set to a rubber material. If the vibrating rod 233 collides with the support frame 222 during the upward movement, the rubber support frame 222 can buffer the vibrating rod 233 to avoid the possibility of a rigid collision between the vibrating rod 233 and the support frame 222 during the upward movement. During specific operation, the rotating shaft 4 is driven by a belt during the rotation of the rotating shaft 4. The movable linkage rod 235 rotates, and the linkage rod 235 drives the gear 236 to rotate during the rotation process. During the rotation process, the gear 236 engages with the annular rack plate 234 and drives the horizontal cross bar 232 to rotate circumferentially around the rotating shaft 4 through the annular block 231. During the rotation of the horizontal cross bar 232, it drives the vibrating rod 233 to rotate circumferentially. Then, when the screening frame 22 drives the screening net to move back and forth up and down, the vibrating rod 233 can extend into the mesh of the screening net to clear the gravel stuck inside the mesh of the screening net, thereby reducing the possibility of gravel clogging the mesh of the screening net.

[0065] The pulley diameter on the linkage rod 235 is larger than the pulley diameter on the rotating shaft 4, which can ensure that when the rotating shaft 4 rotates one circle, the screening frame 22 can move back and forth up and down for one stroke. At this time, the horizontal cross bar 232 rotates the distance between two adjacent screening meshes, thereby ensuring that the horizontal cross bar 232 and the vibrating rod 233 cooperate with each other to dredge all the meshes of the screening net.

[0066] And because the vibrating rod 233 clears the mesh of the screening net during the up and down reciprocating movement of the screening frame 22, the diameter of the vibrating rod 233 is smaller than the diameter of the screening net, so as to leave enough horizontal displacement of the vibrating rod 233 in the circumferential direction to avoid the possibility of collision between the vibrating rod 233 and the screening net during the up and down reciprocating movement.

[0067] Finally, the screened and diluted slurry is recovered at the bottom of the processing cylinder 1 through an existing collecting bucket (not shown in the figure).

[0068] Example 2: Reference Figure 7 as well as Figure 8 On the basis of the first embodiment, in order to reduce the blockage of the screening net, the through groove 11 designed in the present invention can take out the gravel from the inside of the processing cylinder 1. Specifically, the outer wall of the processing cylinder 1 is provided with a through groove 11 corresponding to the screening frame 22, and a sealing plate 12 for sealing the through groove 11 is slidably provided on the outer wall of the processing cylinder 1, and a driving rod 13 is installed on the sealing plate 12.

[0069] Before use, the driving rod 13 is pulled so that the sealing plate 12 blocks the through groove 11. During specific operation, after the mud is processed for a period of time, the mud is no longer poured into the processing cylinder 1, and the processing cylinder 1 is tilted toward the side of the through groove 11. At this time, the driving rod 13 is lifted upward to move the sealing plate 12 upward. At this time, the through groove 11 is opened and the rotating shaft 4 is rotated. During the rotation of the rotating shaft 4, the toggle rod 42 is driven to rotate through the rotating frame 41. During the rotation of the toggle rod 42, the gravel on the screening net can be swept to the side of the through groove 11, so that the gravel is taken out from the through groove 11. At the same time, the reciprocating screening net can also shake the gravel on the screening net to ensure that the gravel on the screening net is fully taken out, and avoid the gravel remaining on the screening net to affect the subsequent screening effect of the mud.

[0070] Finally, refer to Fig. 9 The present invention also provides a method for recycling waste mud in horizontal directional crossing construction, comprising the following steps: S1: dilution treatment, wherein the mud to be recycled is thrown into the dilution cylinder 211, and water is simultaneously added into the dilution cylinder 211. The water in the dilution cylinder 211 can dilute the mud inside the dilution cylinder 211, and the rotating shaft 4 is driven to rotate by an external driving motor (not shown in the figure). During the rotation of the rotating shaft 4, the rotating coupling 212 is driven to rotate by a belt transmission method. During the rotation of the rotating coupling 212, the rotating connecting frame 213 drives the toggle connecting rod 214 to rotate circumferentially around the rotating coupling 212, and then the toggle connecting rod 214 can stir the mud in the dilution process, so that the water and the mud are fully integrated.

[0071] S2: stirring treatment, the mud falls on the screening net after being diluted, and is driven by an external drive to reciprocate up and down along the rotating shaft 4. During the reciprocating up and down movement of the annular frame 221 along the rotating shaft 4, the annular frame 223 is driven to reciprocate up and down through the support frame 222. The annular frame 221 can drive the screening net to oscillate up and down through the cooperation between the support frame 222 and the annular frame 223. During the reciprocating up and down oscillation of the screening net, the gravel in the mud can be driven to shake back and forth. During the rotation of the rotating frame 41, the toggle rod 42 is driven to rotate circumferentially around the rotating shaft 4. During the circumferential rotation of the toggle rod 42, the gravel can be toggled to provide friction for the gravel surface, so that the stubborn mud blocks remaining on the gravel surface in the mud can fall off from the gravel.

[0072] S3: Screening process: the slurry is screened on the screening frame 22. The gravel larger than the screening diameter of the screening frame 22 remains on the corresponding screening frame 22, and the gravel smaller than the diameter of the corresponding screening frame 22 enters the next screening frame 22 along with the slurry. The above actions are repeated until the screening is completed.

[0073] S4: Collection and processing: the slurry after screening and dilution is recovered at the bottom of the processing cylinder 1, and the sand and gravel left after screening are recovered through the through groove 11.

[0074] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0075] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A system for recycling waste mud in horizontal directional drilling construction, comprising a through-going treatment cylinder (1), characterized in that: The processing cylinder (1) is provided with a processing mechanism (2), and a horizontal rod (3) is provided at the bottom of the processing cylinder (1). A rotating shaft (4) extending along the height direction of the processing cylinder (1) and cooperating with the processing mechanism (2) is rotatably provided on the horizontal rod (3) through a bearing, wherein: The processing mechanism (2) comprises: A dilution component (21) is arranged on the top of the processing cylinder (1) and performs a dilution process on the slurry; A plurality of screening frames (22) are evenly arranged along the height direction of the processing cylinder (1) and reciprocate along the height direction of the rotating shaft (4) to screen the sand and gravel in the mud; The vibrating frame (23) is arranged on the rotating shaft (4) and corresponds to the screening frame (22) one by one and rotates along the rotating shaft (4) to prevent gravel from being stuck inside the screening frame (22).

2. The system for recycling waste mud in horizontal directional crossing construction according to claim 1 is characterized by: The dilution component (21) comprises: The dilution cylinder (211) is installed on the top of the processing cylinder (1), and the bottom of the dilution cylinder (211) is provided with a material leakage groove matched with the inside of the processing cylinder (1); The rotating shaft (212) extends along the height direction of the dilution cylinder (211) and is installed at the bottom of the dilution cylinder (211) through a bearing. The rotating shaft (212) is connected to the rotating shaft (4) through a belt transmission. The rotating connecting frame (213) is mounted on the rotating connecting shaft (212), and a plurality of toggling connecting rods (214) are evenly mounted on the bottom of the rotating connecting frame (213) along the length direction thereof.

3. The system for recycling waste mud in horizontal directional crossing construction according to claim 1 is characterized by: The screening frame (22) comprises an annular frame (221) sleeved on a rotating shaft (4); a plurality of circumferentially evenly distributed support frames (222) are mounted on the circumferential surface of the annular frame (221); an annular frame (223) is mounted on one end of the support frame (222) away from the annular frame (221) and reciprocates along the height direction of the inner wall of the processing cylinder (1); a screening net is arranged inside the fan-shaped structure formed by the annular frame (223), the annular frame (221) and adjacent support frames (222); and the diameter of the screening net gradually decreases from the top of the processing cylinder (1) to the bottom of the processing cylinder (1).

4. The system for recycling waste mud in horizontal directional crossing construction according to claim 3 is characterized by: The circumferential surface of the rotating shaft (4) is provided with a plurality of groups of bidirectional threads corresponding one to one with the annular frame (221), and the annular frame (221) and the bidirectional threads cooperate with each other and are installed on the rotating shaft (4) by means of threaded connection.

5. The system for recycling waste mud in horizontal directional crossing construction according to claim 1 is characterized by: The rotating shaft (4) is provided with a plurality of rotating frames (41) for upper limit sliding movement. A plurality of toggle rods (42) evenly distributed along the length direction of the rotating frame (41) are installed at the bottom of the rotating frame (41). A supporting connecting rod (43) is provided at the bottom of the rotating frame (41). One end of the supporting connecting rod (43) away from the rotating frame (41) abuts against the annular frame (221). Spray pipes (44) are symmetrically installed on the rotating frame (41) along the length direction of the rotating frame (41).

6. The system for recycling waste mud in horizontal directional crossing construction according to claim 1 is characterized by: The vibration frame (23) is composed of an annular block (231) rotatably mounted on a rotating shaft (4) via a bearing, a plurality of circumferentially evenly distributed horizontal cross bars (232) are mounted on the circumferential surface of the annular block (231), and a plurality of vibration rods (233) matching with the screening frame (22) are evenly arranged on the horizontal cross bars (232) along their length direction.

7. The system for recycling waste mud in horizontal directional crossing construction according to claim 6 is characterized by: The horizontal cross bar (232) corresponding to the same annular block (231) and the end away from the corresponding annular block (231) are jointly equipped with an annular rack plate (234); a plurality of annular grooves for making way for the annular rack plate (234) are provided on the inner wall of the processing cylinder (1); a connecting protrusion is provided on the top of the outer wall of the processing cylinder (1); a linkage rod (235) extending in the height direction of the processing cylinder (1) is rotatably installed on the connecting protrusion through a bearing; and a plurality of gears (236) meshing with the corresponding annular rack plate (234) are installed on the linkage rod (235).

8. The system for recycling waste mud in horizontal directional crossing construction according to claim 7 is characterized by: The linkage rod (235) and the rotating shaft (4) are connected to each other via a belt transmission, and the diameter of the pulley on the linkage rod (235) is greater than the diameter of the pulley on the rotating shaft (4).

9. The waste mud recycling system for horizontal directional crossing construction according to claim 1 is characterized by: The outer wall of the processing cylinder (1) is provided with through grooves (11) corresponding to the screening frames (22) one by one, and a sealing plate (12) for sealing the through grooves (11) is slidably arranged on the outer wall of the processing cylinder (1), and a driving rod (13) is installed on the sealing plate (12).

10. A method for recycling waste mud in horizontal directional crossing construction, comprising a system for recycling waste mud in horizontal directional crossing construction as claimed in any one of claims 1 to 9, characterized in that: The method comprises the following steps: S1: Dilution treatment, pouring the mud into the dilution cylinder (211) and adding water simultaneously to dilute the mud, and the diluted mud enters the processing cylinder (1) through the leakage trough; S2: stirring treatment, the diluted mud enters the inner wall of the processing cylinder (1) and falls onto the screening frame (22), at which time the rotating shaft (4) rotates through the rotating frame (41) and cooperates with the toggle rod (42) to stir the mud on the screening frame (22), and at the same time, water is added into the processing cylinder (1); S3: screening process, the slurry is screened on the screening frame (22), the gravel larger than the screening diameter of the screening frame (22) remains on the corresponding screening frame (22), and the gravel smaller than the diameter of the corresponding screening frame (22) enters the next screening frame (22) along with the slurry, and the above-mentioned action is repeated until the screening is completed; S4: Collection and processing: the slurry diluted after screening is recovered at the bottom of the processing cylinder (1), and the sand and gravel left after screening are recovered through the through groove (11).

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