River channel desilting treatment device and treatment method thereof

Abstract

The invention discloses a river channel dredging treatment device and a treatment method thereof, and belongs to the technical field of sludge treatment. Comprising a sludge stirring barrel, a medicament feeding mechanism and a mixing mechanism, the medicament feeding mechanism is used for realizing timed and quantitative delivery of medicaments, and the quantitative delivery is adjustable; and the mixing mechanism also has a sludge scraping function. Efficient mixing and pretreatment of sludge and chemicals can be completed on a dredging site, the water content of the sludge can be greatly reduced by combining the subsequent dehydration link, the transportation load and cost are reduced, meanwhile, the uniformity and continuity of sludge treatment are improved, the efficiency and economical efficiency of river dredging operation are overall improved, the operation automation degree is high, and the operation cost is low. The desilting requirements of different river channels can be met.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of sludge treatment, and particularly relates to a river channel dredging treatment device and a treatment method thereof. BACKGROUND

[0002] As an important part of the water conservancy engineering system, the river channel undertakes multiple key functions such as flood control and drainage, irrigation and water supply, and navigation transportation, and its smoothness and ecological state directly affect the regional economic and social development and people's livelihood guarantee. However, due to factors such as natural sedimentation and pollutant discharge, the problem of river channel siltation is increasingly prominent, which leads to the reduction of river channel section and the obstruction of water flow, not only weakening the flood control and drainage capacity, but also causing the decline of water quality due to the enrichment of pollutants in silt, and adversely affecting the production and living environment along the river. Therefore, river channel dredging becomes a necessary measure to restore the function of the river channel and improve the ecological environment.

[0003] In the operation process of the existing dredging equipment, only the extraction and transportation of silt can be completed, and the silt cannot be pretreated on the dredging site. Since the untreated silt has a high water content, not only the equipment load and energy consumption are increased during transportation, but also secondary pollution is easily caused by leakage, and the pressure of the subsequent treatment link is also increased, which restricts the efficiency and economy of the dredging project.

[0004] In addition, the existing equipment lacks precise control ability in the medicament adding link, and it is difficult to flexibly adjust the medicament dosage according to the amount of silt and the degree of pollution, which leads to waste of medicament or insufficient mixing, affecting the silt treatment effect; at the same time, the phenomenon of adhesion and deposition of the barrel wall easily occurs during silt stirring, further reducing the treatment efficiency.

[0005] Therefore, it is urgent to provide a dredging treatment device integrating silt stirring, precise medicament dosing, inner wall scraping and on-site dehydration function to solve the defects of the existing equipment in high silt transportation cost, insufficient medicament control and low treatment efficiency, and improve the comprehensive benefits of river channel dredging. SUMMARY

[0006] The present application provides a river channel dredging treatment device and a treatment method thereof to solve the technical problems in the background art.

[0007] The present application adopts the following technical solution: a river channel dredging treatment device, comprising a frame body; the dredging treatment device comprises: a silt stirring barrel fixed on the frame body; a silt feeding port is formed at the top of the silt stirring barrel; an inclined medicament feeding pipe is fixed at the silt feeding port; a medicament feeding mechanism arranged close to the medicament feeding pipe; the medicament feeding mechanism is used for realizing the timed and quantitative delivery of medicament, and the quantity is adjustable; A mixing mechanism is arranged in the sludge mixing barrel, and has a sludge scraping function; A screw stacking machine is arranged opposite to the medicine feeding mechanism, and is connected to the discharge port of the sludge mixing barrel through a feeding pipe.

[0008] In a further embodiment, the medicine feeding mechanism comprises: A transmission assembly is installed in the frame body; A first material conveying disc is drivingly connected to the output end of the transmission assembly, and is located above the medicine feeding pipe and rotates intermittently under the driving of the transmission assembly; A lifting assembly is integrated near the transmission assembly; A second material conveying disc is drivingly connected to the output end of the lifting assembly, and is coaxially located below the first material conveying disc, and the first material conveying disc and the second material conveying disc form at least two medicine storage cavities with adjustable volumes, and each medicine storage cavity is provided with a self-triggering material blocking cover at the bottom.

[0009] In a further embodiment, the mixing mechanism comprises: A linkage shaft passes through the sludge mixing barrel through a sealing ring at the bottom; A mixing plate is fixed on the linkage shaft, and a scraping plate is fixedly connected to the periphery of the mixing plate and movably contacts the inner wall of the sludge mixing barrel; A driving mechanism is drivingly connected to the bottom of the linkage shaft, and the mixing plate has rotational freedom and axial reciprocating freedom under the action of the driving mechanism.

[0010] In a further embodiment, the transmission assembly comprises: A first motor is fixed on the frame body through a support plate; An intermittent gear assembly is drivingly connected to the output shaft of the first motor; A center column is drivingly connected to the output end of the intermittent gear assembly, and the top end of the center column is fixedly connected to the first material conveying disc; A hollow column pipe is movably sleeved on the outside of the center column, and the top of the hollow column pipe is connected to the second material conveying disc.

[0011] In a further embodiment, at least two groups of first medicine storage pipes are arranged on the first material conveying disc in the axial direction; At least two groups of second medicine storage pipes are arranged at the corresponding positions of the second material conveying disc, and the outer diameter of the first medicine storage pipe is equal to the outer diameter of the second medicine storage pipe.

[0012] In a further embodiment, the lifting assembly comprises: The second motor is fixed on the frame body through the positioning frame; The worm gear assembly is drivingly connected to the output end of the second motor. The lifting ring is connected to the output end of the worm gear assembly through the engagement of the arc-shaped block.

[0013] In a further embodiment, the self-triggering plugging cover comprises a plugging disc which is connected to the inner side wall of the second medicine storage tube through a spring; the inner side of the plugging disc has a trigger plate extending to the center; The edge plate is fixed on the upper surface of the plugging disc along the edge. Further comprising a transmission disc which is sleeved on the outside of the hollow column pipe; the transmission disc has no rotational freedom. The transmission disc has a special-shaped groove on the lower surface; the highest point of the special-shaped groove is close to the medicine delivery tube, and the lowest point is arranged in the opposite direction of the medicine delivery tube; the movable end of the trigger plate is always in surface contact with the special-shaped groove.

[0014] In a further embodiment, the drive mechanism comprises: The connecting piece is connected to the top of the linkage shaft. The linkage column is sleeved on the linkage shaft through the upper positioning block and the lower positioning block; the surface of the linkage column is provided with a first linkage groove arranged in cross; the upper and lower ends of the linkage column are provided with a second linkage groove with a predetermined distance; the first linkage groove and the second linkage groove are in communication. Correspondingly, it further comprises two groups of arc-shaped linkage rods arranged in symmetry and two groups of vertical linkage rods arranged in symmetry; the two groups of arc-shaped linkage rods and the two groups of vertical linkage rods are fixedly connected in perpendicular intersection and fixed to the driving pulley; wherein the first linkage groove is matched with the vertical linkage rod, and the second linkage groove is obliquely arranged to form a connecting interface, which is matched with the arc-shaped linkage rod through the connecting interface.

[0015] In a further embodiment, the drive mechanism further comprises: The driven pulley is rotatably mounted on the frame body; the driven pulley is drivingly connected to the driving pulley through a transmission belt. The driving rod is fixedly connected to the driven pulley in the radial direction; the lower end of the driving rod is fixedly connected to the driving piece on the front side; the driving piece is movably connected in the linkage piece; the linkage piece is fixed to the connecting piece.

[0016] The treatment method using the river channel dredging treatment device as described above comprises the following steps: The silt in the river channel is transported into the silt stirring barrel by a silt pump, the pollution condition of the silt and the silt amount of the silt stirring barrel are obtained, the conveying amount of the medicament is determined according to the pollution condition and the silt amount, and the distance between the first material conveying disc and the second material conveying disc is adjusted according to the conveying amount to realize quantitative adjustment during conveying. The driving assembly is started, the first material conveying disc is driven to rotate intermittently, and the second material conveying disc moves synchronously with the first material conveying disc; when the storage cavity rotates to the upper side of the medicine conveying pipe, the self-triggering blocking cover is automatically opened under the action of the special-shaped groove of the transmission disc, the medicament enters the silt stirring barrel through the medicine conveying pipe, and the medicament is mixed with the silt. Meanwhile, the mixing mechanism is started, the mixing plate is rotated and axially reciprocated under the action of the linkage shaft, so that the medicament and the silt are fully mixed, and the silt on the inner wall of the silt stirring barrel is scraped off by the scraping plate.

[0017] The mixed silt enters the screw stacker through the feeding pipe for dehydration treatment, and the dehydrated silt is discharged, and the dredging treatment is completed.

[0018] The beneficial effects of the present application are as follows: the present application integrates the silt stirring barrel and the screw stacker, and constructs an integrated on-site operation process of stirring and mixing-dehydration treatment. During operation, the river silt is transported to the silt stirring barrel through the pump body, and the flocculating agent accurately put by the feeding assembly fully reacts with the silt, so that the silt particles quickly coagulate and separate from the water body; the reacted silt directly enters the screw stacker through the medicine conveying pipe for dehydration treatment, and the water content of the dehydrated silt is significantly reduced. Compared with the existing dredging equipment which directly transports silt with high water content, not only the load and energy consumption of the transportation equipment are reduced, but also the leakage risk in the transportation process is reduced, secondary pollution is avoided, and the economic efficiency and environmental protection of the dredging project are significantly improved.

[0019] The present application realizes quantitative, batch and uniform feeding of the flocculating agent through the nested design of the first material conveying disc and the second material conveying disc. Specifically, the first storage pipe of the first material conveying disc and the second storage pipe of the second material conveying disc are slidably connected to form a storage space with adjustable volume, and the lifting assembly is used to flexibly adjust the single medicament feeding amount by changing the distance between the two discs, so as to accurately match the processing requirements of different silt amounts and pollution degrees. At the same time, the intermittent gear assembly drives the material conveying disc to rotate intermittently, and the synchronous action of the self-triggering blocking cover ensures that the medicament falls into the silt stirring barrel at regular time, and cooperates with the continuously inhaled silt to form high efficiency. This design avoids the problem of excessive or insufficient medicament feeding of traditional equipment, reduces the waste of medicament, and the whole process does not need manual intervention, and the automation degree is significantly improved.

[0020] The mixing assembly of the application realizes the alternating linkage of rotary stirring and inner wall scraping. When the mixing plate rotates under the driving of the linkage shaft, it can fully mix the flocculating agent and the sludge, ensuring uniform reaction; when the scraping plate moves axially back and forth with the linkage shaft, it can closely adhere to the inner wall of the sludge stirring barrel and timely remove the adhered sludge deposits, avoiding insufficient reaction or waste of barrel volume due to local accumulation. The two actions are orderly switched through the ingenious design of the driving mechanism, which not only ensures the mixing efficiency of the sludge and the reagent, but also maintains the cleanliness of the barrel, so that the device can continuously maintain high processing efficiency, solving the problem of reduced processing efficiency caused by uneven stirring or sludge accumulation in the existing equipment.

[0021] The device integrates the sludge stirring barrel, the feeding assembly, the mixing assembly and the stacking screw machine in the same frame through the integrated fixing structure of the rear frame body and the front frame body, and has compact overall layout and small floor area, which can be flexibly adapted to the dredging site environment of different rivers. At the same time, the components are driven by mechanical structures such as gears and linkage shafts, and have stable and reliable operation, low maintenance cost and suitability for long-term outdoor operation scene. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 A structure diagram of a river dredging device is provided.

[0023] Figure 2 A structure diagram of a river dredging device is provided. Figure One A structure diagram of a river dredging device is provided.

[0024] Figure 3 A structure diagram of a river dredging device is provided. Figure One .

[0025] Figure 4 A structure diagram of a river dredging device is provided. Figure Two .

[0026] Figure 5 A structure diagram of a river dredging device is provided. Figure Three .

[0027] Figure 6 A structure diagram of a river dredging device is provided. Figure One .

[0028] Figure 7 A structure diagram of a river dredging device is provided. Figure Two .

[0029] Figure 8 A structure diagram of a river dredging device is provided. Figure Three .

[0030] Figure 9 Part structure diagram of feeding assembly in river dredging device Figure One .

[0031] Figure 10 Part structure diagram of feeding assembly in river dredging device Figure Two .

[0032] Figure 11 Part structure diagram of feeding assembly in river dredging device Figure Three .

[0033] Figure 12 Part structure diagram of feeding assembly in river dredging device Figure Four .

[0034] Figure 13 Connection diagram of mixing assembly and sludge stirring barrel in river dredging device.

[0035] Figure 14 Structure diagram of mixing assembly in river dredging device.

[0036] Figure 15 Part structure diagram of mixing assembly in river dredging device.

[0037] Figures 1 to 15 The annotations in the drawings are sludge stirring barrel 1, rear frame body 2, feeding pipe 3, medicament feeding mechanism 4, mixing mechanism 5, front frame body 6, medicament feeding hopper 401, first material conveying disc 402, second material conveying disc 403, medicament feeding pipe 404, first medicament storage pipe 405, second medicament storage pipe 4051, supporting plate 406, first motor 407, intermittent driving pulley 408, first auxiliary pulley 4081, intermittent driven pulley 409, second auxiliary pulley 4091, second motor 410, lifting pulley 4101, mounting frame 411, material blocking disc 412, center column 413, hollow column pipe 414, positioning frame 415, transmission disc 416, lifting gear column 417, lifting ring 4171, clamping arc-shaped block 4172, connecting rod 4173, mixing plate 501, scraping plate 502, linkage shaft 503, positioning block 504, linkage column body 505, first linkage groove 5051, second linkage groove 5052, connecting piece 506, third motor 507, driving pulley 508, driven pulley 509, arc-shaped linkage rod 510, vertical linkage rod 511, driving rod 512, driving piece 5121, linkage piece 513. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0039] Example 1 like Figures 1 to 5 As shown, a river channel desilting device includes a frame. The frame described in this embodiment, based on the positional relationship shown in the figure, can be understood as comprising a rear frame 2 and a front frame 6. Furthermore, a sludge mixing drum 1 is fixedly connected to the junction of the rear frame 2 and the front frame 6. A sludge feed port is defined at the top of the sludge mixing drum 1; an inclined drug delivery pipe 404 is fixed to the sludge feed port.

[0040] In order to better treat the sludge, this embodiment is provided with a medicine feeding mechanism 4 near the medicine feeding pipe 404. For example, the medicine feeding mechanism 4 is provided on the rear frame 2. The medicine feeding mechanism 4 of this embodiment is used to achieve timed and quantitative delivery of the medicine, and the quantitative amount is adjustable; The invention also includes: a mixing mechanism 5 provided in the sludge stirring barrel 1, the mixing mechanism 5 also having the function of scraping sludge; The snail stacking machine is arranged opposite to the medicine feeder; the snail stacking machine is connected to the discharge port of the sludge stirring barrel 1 through the feed pipe 3.

[0041] In a further embodiment, the medicine feeding mechanism 4 includes: a transmission component installed in the rear frame 2, and the output end of the transmission component is connected to the first transport tray 402. In order not to affect the addition of medicine, the first transport tray 402 is located above the medicine feeding tube 404, and the first transport tray 402 rotates intermittently under the drive of the transmission component.

[0042] A lifting component is integrated near the transmission component, and the output end of the lifting component is connected to the second material transport tray 403, which is coaxially located below the first material transport tray 402. At least two medicine storage cavities with adjustable volumes are formed between the first material transport tray 402 and the second material transport tray 403, and the bottom of each medicine storage cavity is provided with a self-triggering blocking cover.

[0043] As shown in the figure, the transmission assembly of this embodiment includes a first motor 407 fixed to the rear frame 2 via a support plate 406. The output shaft of the motor is in driving connection with an intermittent gear assembly. The output end of the intermittent gear assembly is in driving connection with a center column 413, the top end of which is fixedly connected to the first material transport tray 402. In other words, the intermittent gear assembly rotates the first material transport tray 402 by controlling the rotation of the center column 413.

[0044] In order to synchronize the movement of the second material conveying disc 403, a hollow column pipe 414 is movably sleeved outside the center column 413, and the top of the hollow column pipe 414 is connected to the second material conveying disc 403.

[0045] The linkage of the first material conveying disc 402 and the second material conveying disc 403 is realized by the following scheme, and the first material conveying disc 402 is provided with at least two groups of first medicine storage pipes 405 in the axial direction; At least two groups of second medicine storage pipes 4051 are arranged at the corresponding positions of the second material conveying disc 403, and the outer diameter of the first medicine storage pipe 405 is equal to the outer diameter of the second medicine storage pipe 4051.

[0046] It is further understood that the lower end of the first medicine storage pipe 405 and the upper end of the second medicine storage pipe 4051 are slidably sleeved to form a new medicine storage pipe for storing medicine. At the same time, the sleeving of the first medicine storage pipe 405 and the second medicine storage pipe 4051 can realize the driving of the first material conveying disc 402 to the second material conveying disc 403.

[0047] In another embodiment, a medicine adding hopper 401 is movably arranged above the first medicine storage pipe 405, and a medicine storage box is arranged above the medicine adding hopper 401, and the medicine storage box is filled with flocculants.

[0048] Therefore, the intermittent gear assembly in the embodiment comprises a mounting frame 411 fixed on the rear frame body 2, and the first auxiliary wheel disc 4081 and the second auxiliary wheel disc 4091 are fixed side by side on the mounting frame 411, and the rotatable intermittent driving pulley 408 and the intermittent driven pulley 409 are respectively installed on the first auxiliary wheel disc 4081 and the second auxiliary wheel disc 4091. It should be noted that the outer side of the intermittent driving pulley 408 is partially provided with a gear, and the outer side wall of the intermittent driven pulley 409 is covered with gears, so that the intermittent driving pulley 408 and the intermittent driven pulley 409 are intermittently meshed. Correspondingly, the bottom of the center column 413 is fixedly connected to the intermittent driven pulley 409.

[0049] When the flocculants in the dosing hopper 401 are discharged, they should just fall into the first storage pipe 405 in the first material conveying disc 402, and then fall into the second storage pipe 4051. Since the lower end of the second storage pipe 4051 corresponding to the dosing is in close contact with the horizontal blocking disc 412, the flocculants stay in the corresponding second storage pipe 4051 for a period of time. Then, by starting the first motor 407 to drive the intermittent driving pulley 408 to rotate, the intermittent driving pulley 408 drives the intermittent driven pulley 409 to rotate, the intermittent driven pulley 409 drives the first material conveying disc 402 to rotate through the center column 413, and the first material conveying disc 402 drives the second material conveying disc 403 to rotate through the first storage pipe 405 and the second storage pipe 4051. When the first material conveying disc 402 and the second material conveying disc 403 rotate by one hundred and eighty degrees, the first storage pipe 405 and the second storage pipe 4051 loaded with flocculants are located above the dosing pipe to pour the flocculants into the dosing pipe. The intermittent driving pulley 408 is provided with only half a circle of teeth, which is used to reserve a certain time for the flocculants to enter and discharge the storage pipe. The first auxiliary pulley 4081 and the second auxiliary pulley 4091 on the lower side of the intermittent driving pulley 408 and the intermittent driven pulley 409 cooperate to drive the transmission process more stably.

[0050] In another embodiment, the self-triggering blocking cover comprises: a blocking disc 412 connected to the inner side wall of the second storage pipe 4051 by a spring; An edge plate is fixed on the upper surface of the blocking disc 412 along the edge; Further comprising: a transmission disc 416 sleeved on the outside of the hollow column pipe 414; the transmission disc 416 has no rotational freedom, i.e. it is fixedly connected to the positioning frame 415 through the connecting rod 4173.

[0051] A special-shaped groove is opened in the lower surface of the transmission disc 416; the highest point of the special-shaped groove is close to the dosing pipe 404, and the lowest point is located in the opposite direction of the dosing pipe 404; the movable end of the trigger plate is always in surface contact with the special-shaped groove.

[0052] Under normal circumstances, the blocking disc 412 is tightly attached to the lower end of the second storage pipe 4051 under the action of the spring, sealing the storage cavity and preventing the leakage of the medicament; at this time, the movable end of the trigger plate is in surface contact with the lowest point of the special-shaped groove on the lower surface of the transmission disc 416.

[0053] When the second material conveying disc 403 rotates with the hollow column pipe 414, the trigger plate moves synchronously with the storage pipe, and its movable end slides along the special-shaped groove: when the storage cavity is rotated to above the dosing pipe 404, the trigger plate moves to the highest point area of the special-shaped groove, and is pushed outward to open the blocking disc 412 (the spring is stretched) under the action of the groove profile and the weight of the medicament, the bottom of the storage cavity is opened, and the medicament falls into the sludge stirring barrel 1 through the dosing pipe 404.

[0054] In contrast, when the storage cavity leaves the area of the medicine delivery tube 404, the trigger plate slides to the lowest point of the special-shaped groove body, the spring reset drives the blocking disc 412 to close, resealing the storage cavity, completing a medicine delivery cycle. Through the cooperation of the trigger plate and the special-shaped groove body, the automatic linkage of the medicine delivery and the rotation of the storage cavity is realized, and no additional power is needed to control the opening and closing of the blocking disc 412.

[0055] In another embodiment, the lifting assembly includes: a second motor 410 fixedly connected with the lower positioning frame 415 through a fixed frame; the output shaft of the second motor 410 is drivingly connected with a worm gear assembly, and the output end of the worm gear assembly is provided with an engagement arc block 4172. And in the outside of the hollow column pipe 414, a lifting ring 4171 is sleeved through a bearing (i.e. the hollow column pipe can rotate by itself, but the axial direction is relatively static with the lifting ring 4171), and the lifting ring 4171 is connected to the engagement arc block 4172.

[0056] Therefore, the height of the lifting ring 4171 is controlled by the worm gear assembly to realize the height adjustment of the hollow column pipe 414, and further realize the height adjustment of the second material disc 403.

[0057] Further, the worm gear assembly of the embodiment includes: two positioning frames 415 movably sleeved on the center column 413, the rear sides of the two positioning frames 415 are fixedly connected with the inner side of the rear frame body 2 (i.e. the center column 413 can rotate by itself), and the rear end of the positioning frame 415 is slidingly connected with a lifting gear column 417; the lifting gear column 417 is meshingly connected with a lifting wheel 4101 on one side, and the shaft center rear end of the lifting wheel 4101 is fixedly connected with the output shaft of the second motor 410.

[0058] When the amount of sludge is large, more flocculants are needed for sludge treatment, at this time the second motor 410 is started to drive the lifting wheel 4101 to rotate and thus drive the lifting gear column 417 to descend, the upper end of the lifting gear column 417 drives the engagement arc block 4172 to move downward, the engagement arc block 4172 drives the lifting ring 4171 to move downward, the lifting ring 4171 drives the hollow column pipe 414 and the transmission disc 416 to move downward and thus drives the second material disc 403 to move downward, the second material disc 403 drives the second storage tube 4051 to move downward, at this time the overlapping height of the second storage tube 4051 and the first storage tube 405 becomes smaller, and the space between the first storage tube 405 and the second storage tube 4051 for storing flocculants becomes larger, and at the same time the time interval of the opening of the electric valve in the dosing hopper 401 is also correspondingly extended, so that more flocculants can be transported into the sludge mixing barrel 1; The present application can quantitatively and evenly put the sludge into the sludge during the sludge treatment, and can adjust the input amount of the flocculating agent according to the input amount of the sludge, so as to realize high automation and continuously and uninterruptedly cooperate with the sludge suction process.

[0059] Embodiment 2 Based on the river dredging treatment device disclosed in embodiment 1, the mixing mechanism 5 of the present embodiment comprises: The mixing plate 501 is fixedly connected with the scraping plate 502 around the periphery, and the scraping plate 502 is movably connected with the inner wall of the sludge stirring barrel 1. The central part of the mixing plate 501 is fixedly connected with the linkage shaft 503, the bottom of the linkage shaft 503 is movably connected with the linkage column body 505, and the linkage shaft 503 is sealingly connected with the bottom of the sludge stirring barrel 1.

[0060] The linkage column body 505 is provided with positioning blocks 504 on the upper and lower sides, the positioning blocks 504 are fixedly connected with the inner side of the lower end of the sludge stirring barrel 1 through positioning rods, the outer wall of the linkage shaft 503 is fixedly connected with limiting sheets on both sides, the linkage shaft 503 is rotatably connected with the positioning blocks 504, the linkage column body 505 is provided with a limiting ring in the center, a limiting groove is formed in the limiting ring, the limiting sheets are slidably connected in the limiting groove, and the limiting ring is fixedly connected with the linkage column body 505.

[0061] The linkage column body 505 is provided with first linkage grooves 5051 arranged in cross on the column surface, and second linkage grooves 5052 are arranged at the edges of the upper and lower ends of the linkage column body 505; the first linkage grooves 5051 are matched with the vertical linkage rods 511, the second linkage grooves 5052 are formed into a connecting interface by being arranged in an inclined manner, and the connecting interface is matched with the arc-shaped linkage rods 510.

[0062] The two arc-shaped linkage rods 510 are fixedly connected through a fixed rod, the fixed rod is connected with the vertical linkage rods 511; the connection position of the fixed rod and the vertical linkage rods 511 is fixedly connected to the front side of the shaft center of the driving pulley 508 on the rear side, the rear side of the driving pulley 508 is fixedly connected with the output shaft of the third motor 507 on the front end, the rear side of the third motor 507 is fixedly connected with the upper end of the front frame body 6; the driving pulley 508 is meshingly connected with the driven pulley 509 on one side below through a transmission belt, and the shaft center of the driven pulley 509 is movably connected to the inner side of the front frame body 6 on one end; the shaft center of the driven pulley 509 is fixedly connected with the driving rod 512 on the other end on the front side, the lower end of the driving rod 512 is fixedly connected with the driving piece 5121 on the front side, and the driving piece 5121 is movably clamped in the linkage piece 513; the linkage piece 513 is fixedly connected with the connecting piece 506, and the upper end of the connecting piece 506 is movably connected with the lower end of the linkage shaft 503.

[0063] The third motor 507 drives the main drive pulley 508 to rotate, drives the vertical linkage rod 511 and the arc linkage rod 510 to rotate synchronously through the fixed rod, and drives the driven pulley 509 to rotate through the transmission belt, and then drives the drive rod 512 and the lower end drive element 5121 to rotate.

[0064] When the vertical linkage rod 511 is in contact with the first linkage groove 5051 on the surface of the linkage cylinder 505, the linkage cylinder 505 is rotated, the linkage cylinder 505 is matched with the limiting piece of the linkage shaft 503 through the limiting groove of the central limiting ring, the linkage shaft 503 and the mixing plate 501 are driven to rotate, and the stirring and mixing of the sludge and the medicament are realized.

[0065] When the arc linkage rod 510 is matched with the second linkage groove 5052 (inclined connection port) on the upper and lower ends of the linkage cylinder 505, the linkage cylinder 505 is driven to move axially, the linkage shaft 503 and the peripheral scraping plate 502 are lifted and lowered along the inner wall of the sludge stirring barrel 1 through the sliding matching of the limiting ring and the limiting piece, and the sludge adhered to the barrel wall is scraped off.

[0066] The drive element 5121 driven by the driven pulley 509 slides in the linkage element 513, further drives the linkage shaft 503 to make axial reciprocating motion through the connecting element 506, cooperates with the rotating action, realizes the alternation and cooperation of the rotating stirring of the mixing plate 501 and the lifting and scraping of the scraping plate 502, improves the mixing efficiency, and avoids the deposition of the sludge.

[0067] Embodiment 3 Based on the river dredging treatment device disclosed in Embodiment 1 and Embodiment 2, the treatment method disclosed in the embodiment comprises the following steps: The sludge in the river is transported into the sludge stirring barrel through the sludge pump, the pollution condition of the sludge and the sludge amount of the sludge stirring barrel are obtained, the delivery amount of the medicament is determined according to the pollution condition and the sludge amount, the distance between the first material conveying disc and the second material conveying disc is adjusted to realize the quantitative adjustment during delivery according to the delivery amount, and the medicament concentration ratio corresponding to different pollution degrees, the sludge amount and the medicament amount are different.

[0068] The transmission assembly is started, the first material conveying disc is driven to rotate intermittently, and the second material conveying disc moves synchronously with the first material conveying disc; when the medicine storage cavity is rotated to above the medicine feeding pipe, the self-triggering type blocking cover is automatically opened under the action of the transmission disc special-shaped groove body, the medicament enters the sludge stirring barrel through the medicine feeding pipe, and the medicament is mixed with the sludge. At the same time, the mixing mechanism is started, the linkage shaft drives the mixing plate to rotate and make axial reciprocating motion, the medicament and the sludge are fully mixed, and the sludge stirring barrel inner wall sludge is scraped off by the scraping plate.

[0069] The mixed sludge enters the stacking screw machine through the feeding pipe for dehydration treatment, the dehydrated sludge is discharged, and the dredging treatment is completed.

[0070] The above merely provides the preferred embodiment of the present application, and the protection scope of the present application is not limited thereto. Any person skilled in the art, according to the technical range disclosed by the present application and the inventive concept thereof, can make equivalent replacements or changes, and all these should be covered in the protection scope of the present application.

Claims

1. A river channel desilting device, comprising a frame; characterized in that: The desilting treatment device comprises: A sludge stirring barrel is fixed on the frame; a sludge feeding port is provided on the top of the sludge stirring barrel; an inclined medicine feeding pipe is fixed at the sludge feeding port; A medicine feeding mechanism is provided near the medicine feeding tube; the medicine feeding mechanism is used to achieve timed and quantitative delivery of medicine, and the quantitative amount is adjustable; A mixing mechanism is provided in the sludge stirring barrel; the mixing mechanism also has the function of scraping sludge; The screw stacking machine is arranged opposite to the medicine feeder; the screw stacking machine is connected to the discharge port of the sludge stirring barrel through a feed pipe.

2. A river channel desilting device according to claim 1, characterized in that: The medicine feeding mechanism comprises: A transmission assembly is installed in the frame; A first material transport tray is transmission-connected to the output end of the transmission assembly; the first material transport tray is located above the medicine delivery tube, and the first material transport tray rotates intermittently under the drive of the transmission assembly; a lifting assembly, integrated in the vicinity of the transmission assembly; The second material transport tray is transmission-connected to the output end of the lifting assembly; the second material transport tray is coaxially located below the first material transport tray, and at least two medicine storage cavities with adjustable volumes are formed between the first material transport tray and the second material transport tray, and a self-triggering blocking cover is provided at the bottom of each medicine storage cavity.

3. A river channel desilting device according to claim 1, characterized in that: The mixing mechanism comprises: A linkage shaft, the bottom of which movably passes through the sludge mixing barrel via a sealing ring; A mixing plate is fixed on the linkage shaft; a scraping plate is fixedly connected to the periphery of the mixing plate, and the scraping plate is in movable contact with the inner wall of the sludge mixing barrel; The driving mechanism is transmission-connected to the bottom of the linkage shaft; the mixing plate has rotational freedom and axial reciprocating freedom under the action of the driving mechanism.

4. A river channel desilting device according to claim 2, characterized in that: The transmission assembly comprises: A first motor is fixed to the frame via a supporting plate; an intermittent gear assembly, drivingly connected to the output shaft of the first motor; A central column is transmission-connected to the output end of the intermittent gear assembly; the top end of the central column is fixedly connected to the first material transport tray; The hollow column tube is movably sleeved on the outside of the central column; the top of the hollow column tube is connected to the second material transport tray.

5. A river channel desilting device according to claim 2, characterized in that: At least two groups of first medicine storage tubes are arranged axially on the first material transport tray; At least two groups of second medicine storage tubes are provided at corresponding positions of the second material transport tray, and the outer diameter of the first medicine storage tube is equal to the outer diameter of the second medicine storage tube.

6. A river channel desilting device according to claim 2, characterized in that: The lifting assembly comprises: The second motor is fixed to the frame through a positioning frame; a worm gear assembly, transmission-connected to an output end of the second motor; The lifting ring is sleeved on the outside of the hollow column tube through a bearing; one side of the lifting ring is connected to the output end of the worm gear assembly through a snap-fit ​​arc block.

7. A river channel desilting device according to claim 2, characterized in that: The self-triggering blocking cover comprises: a blocking plate connected to the inner wall of the second medicine storage tube via a spring; a trigger plate extending toward the center is provided on the inner side of the blocking plate; An edge plate is fixed to the upper surface of the blocking tray along the edge; It also includes: a transmission disk, which is sleeved on the outside of the hollow column tube; the transmission disk has no rotational freedom; The special-shaped groove body is opened on the lower surface of the transmission plate; the highest point of the special-shaped groove body is close to the medicine delivery tube, and the lowest point is located in the opposite direction of the medicine delivery tube; the movable end of the trigger plate is always in contact with the special-shaped groove body.

8. A river channel desilting device according to claim 3, characterized in that: The driving mechanism comprises: a connecting member, the top of which is connected to the linkage shaft; A linkage column is sleeved on the linkage shaft through an upper positioning block and a lower positioning block; a first linkage groove is formed on the surface of the linkage column, and a second linkage groove is formed at a predetermined distance at the upper and lower ends of the linkage column, and the first linkage groove and the second linkage groove are connected; Correspondingly, it also includes: two symmetrically arranged groups of arc-shaped linkage rods and two symmetrically arranged groups of vertical linkage rods, the two groups of arc-shaped linkage rods and the two groups of vertical linkage rods are vertically cross-fixed and connected, and fixed to the active pulley; wherein, the first linkage groove is adapted to the vertical linkage rod, and the second linkage groove is inclined to form a connecting port, and is adapted to the arc-shaped linkage rod through the connecting port.

9. A river channel desilting device according to claim 8, characterized in that: The driving mechanism further comprises: A driven pulley is rotatably mounted on the frame; the driven pulley is connected to the driving pulley via a transmission belt; The driving rod is fixedly connected to the driven pulley in radial direction; the front side of the lower end of the driving rod is fixedly connected with a driving member, and the driving member is movably engaged in the linkage member; the linkage member is fixed to a connecting member.

10. A method for using the river channel desilting device according to any one of claims 1 to 9, characterized in that: The following steps are involved: The silt in the river channel is transported to the silt mixing barrel by a silt pump, and the pollution status of the silt and the amount of silt in the silt mixing barrel are obtained. The delivery amount of the agent is determined according to the pollution status and the amount of silt; the distance between the first material transport tray and the second material transport tray is adjusted according to the delivery amount to achieve quantitative adjustment during delivery; The transmission assembly is started to drive the first material transport tray to intermittently rotate, while the second material transport tray moves synchronously with the first material transport tray; when the drug storage cavity rotates to above the drug delivery pipe, the self-triggering material blocking cover automatically opens under the action of the special-shaped groove of the transmission disk, and the drug enters the sludge mixing barrel through the drug delivery pipe and mixes with the sludge; At the same time, the mixing mechanism starts, the linkage shaft drives the mixing plate to rotate and make axial reciprocating motion, so that the reagent and sludge are fully mixed, and at the same time the scraper plate scrapes off the sludge on the inner wall of the sludge mixing barrel. The mixed sludge enters the screw press through the feeding pipe for dehydration. The dehydrated sludge is discharged, completing the dredging process.

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