Molten salt storage tank bottom sediment mechanical loosening and auxiliary salt discharging device

Abstract

The invention relates to the technical field of molten salt sediment treatment, in particular to a molten salt storage tank bottom sediment mechanical loosening and auxiliary salt discharging device which comprises a combined mounting plate, a plurality of fixed mounting rings are arranged on the combined mounting plate at equal angles, and a connecting mounting cylinder is arranged on the combined mounting plate in a penetrating mode. A variable-diameter mounting cylinder is arranged at one end of the connecting mounting cylinder, a power supply line is connected to the combined mounting plate, and a suction salt discharging mechanism, an inner and outer synchronous spraying mechanism and a synchronous rotation loosening mechanism are further included. The device not only solves the industrial problems of high difficulty in cleaning sediments at the bottom of the molten salt storage tank, low efficiency, more residues, high potential safety hazards and the like, but also realizes high efficiency, thoroughness and safety of cleaning operation through high integration and intelligent adjustment, and has remarkable significance in improving the operation reliability of the storage tank, prolonging the repair cycle and reducing the maintenance cost.

Description

Technical Field

[0001] This invention relates to the field of molten salt sediment treatment technology, and in particular to a device for mechanically loosening sediment at the bottom of a molten salt storage tank and assisting in salt removal. Background Technology

[0002] Molten salt storage tanks are key equipment in new energy and industrial thermal energy systems such as concentrated solar power (CSP) and molten salt energy storage. Their core function is to store high-temperature molten salt for energy storage and release. During long-term operation, impurities and oxides in the molten salt, or changes in its own physical properties, gradually deposit and harden at the bottom of the tank, forming a solid sediment layer. The accumulation of these sediments leads to a series of serious problems: First, it significantly reduces the effective volume and heat storage capacity of the tank, affecting the overall system efficiency; second, sediment covering the tank bottom severely hinders heat transfer, potentially causing localized overheating, material degradation, and even safety accidents; third, some sediment components are corrosive, and long-term adhesion exacerbates tank corrosion, shortens equipment lifespan, and increases maintenance costs and safety risks. Therefore, regular and thorough cleaning of the tank bottom sediment is an indispensable maintenance step to ensure the safe, stable, and efficient operation of molten salt storage tanks.

[0003] Currently, the industry mainly relies on the following technical methods for cleaning sediments at the bottom of molten salt storage tanks: First, purely mechanical cleaning methods, such as using shovels, scrapers, or drills for manual or mechanical breaking and scraping. This method is labor-intensive, has low cleaning efficiency, and for severely compacted sediments, it often only treats the surface, failing to reach deeper layers and easily leaving blind spots. It also carries the risk of tool damage to the tank's inner wall. Second, high-pressure water jet or hydraulic dredging methods. This method uses high-pressure water to impact the sediments, which has some effect, but generates a large amount of saline wastewater, making subsequent treatment complex and placing significant environmental pressure on the tank. Furthermore, operating within a closed storage tank presents problems such as low visibility and inconvenient operation, and its ability to break up hard sediments is limited. Third, chemical dissolution combined with manual cleaning. This involves softening the sediments by injecting specific solvents before manual removal. This method is time-consuming, severely impacting the tank's commissioning cycle, and the chemicals may potentially affect the tank material. The treatment of large amounts of chemical waste is also a major challenge.

[0004] The present invention aims to solve the technical problems existing in the prior art. To this end, a device for mechanically loosening sediment at the bottom of molten salt storage tank and assisting in salt discharge is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a device for mechanically loosening sediment at the bottom of a molten salt storage tank and assisting in salt removal, so as to solve the technical problems existing in the prior art.

[0006] By adopting the above technical solution, the present invention has the following beneficial effects:

[0007] This invention provides a device for mechanically loosening sediment at the bottom of a molten salt storage tank and assisting in salt removal. The device includes a combined mounting plate with several fixing rings arranged at equal angles on the plate. A connecting mounting cylinder is inserted through the plate, and a reducing mounting cylinder is provided at one end of the connecting mounting cylinder. A power supply line is connected to the combined mounting plate. The device also includes:

[0008] A suction and salt discharge mechanism is installed on a variable diameter mounting cylinder. The suction and salt discharge mechanism includes a conical mounting cylinder connected to the end of the variable diameter mounting cylinder. A flow-limiting mounting cylinder is installed at the end of the conical mounting cylinder. A feed depth adjustment module is installed inside the conical mounting cylinder.

[0009] A synchronous rotation loosening mechanism is provided on the outside of the conical mounting cylinder. The synchronous rotation loosening mechanism includes a limiting rotation ring provided on the outside of the conical mounting cylinder, a limiting rotation sleeve provided in conjunction with the limiting rotation ring, and sealed rotation rings provided on both sides of the limiting rotation sleeve in conjunction with the conical mounting cylinder and the flow-limiting mounting cylinder, respectively. Several follow-up loosening modules are provided at equal angles on the outside of the limiting rotation sleeve, and a synchronous lifting module is provided on the flow-limiting mounting cylinder.

[0010] The internal and external synchronous spraying mechanism is set on the conical mounting cylinder, including an annular guide cavity embedded in the cylinder wall of the conical mounting cylinder. An inlet pipe is connected to the annular guide cavity. The inlet pipe passes through the conical mounting cylinder, the variable diameter mounting cylinder and the combined mounting plate in sequence, and a connecting flange is provided at the outer end of the inlet pipe.

[0011] As a further aspect of the present invention: a steering gear ring is provided on the inner side of the sealed rotating ring corresponding to the flow-limiting mounting cylinder, and a plurality of drive gears are provided at equal angles on the outer side of the flow-limiting mounting cylinder, all of which mesh with the steering gear ring.

[0012] As a further aspect of the present invention: the inner wall of the conical mounting cylinder is uniformly provided with a plurality of jet nozzles, all of which are connected to the annular guide cavity; the outer side of the conical mounting cylinder is provided with a plurality of universal guide tubes at equal angles, one end of the universal guide tube is connected to the annular guide cavity, and the other end of the universal guide tube is provided with an atomizing nozzle.

[0013] As a further aspect of the present invention: the feed depth adjustment module includes an adjustment mounting plate disposed inside a conical mounting cylinder. The outer side of the adjustment mounting plate is connected to the inner wall of the conical mounting cylinder via a guide mounting frame. A displacement mounting plate is disposed opposite the adjustment mounting plate. One side of the displacement mounting plate is connected to the adjustment mounting plate via a drive telescopic column. A working drive component is disposed on the other side of the displacement mounting plate. A conical feed drill bit is disposed on the working drive component. A spherical telescopic cover is disposed on the outer side of the displacement mounting plate in conjunction with the conical feed drill bit.

[0014] As a further aspect of the present invention: the follow-up loosening module includes a follow-up mounting frame that is equidistantly arranged on the outside of the limiting rotating sleeve, a follow-up rotating column is rotatably arranged on the follow-up mounting frame, a deflection mounting plate is connected to the outside of the follow-up rotating column, a loosening block is provided at the outer end of the deflection mounting plate, and a plurality of loosening teeth are provided on one side of the loosening block.

[0015] As a further embodiment of the present invention: an adjustment mounting plate is provided on the side of the deflection mounting plate facing the flow-limiting mounting cylinder, an adjustment screw is provided through the deflection mounting plate facing the adjustment mounting plate, an adjustment stud is provided in conjunction with the adjustment screw, an adjustment turntable is provided at one end of the adjustment stud, a limit shaft is provided at the other end of the adjustment stud, and a limit bearing sleeve is provided on one side of the adjustment mounting plate in conjunction with the limit shaft.

[0016] As a further embodiment of the present invention: a limiting recess is provided on one side of the deflection mounting plate in conjunction with the limiting bearing sleeve, and a plurality of directional guide posts are provided on one side of the adjustment mounting plate, and directional guide holes are provided on both the deflection mounting plate and the directional guide posts.

[0017] As a further embodiment of the present invention: the synchronous lifting module includes a synchronous mounting cylinder facing the current limiting mounting cylinder, an annular guide cylinder is provided at one end of the synchronous mounting cylinder facing the current limiting mounting cylinder, and a plurality of limiting guide columns are provided at equal angles on the outer side of the annular guide cylinder, and the current limiting mounting cylinder and the limiting guide columns are both provided with limiting guide grooves.

[0018] As a further aspect of the present invention: an annular airbag is provided at the other end of the synchronous installation cylinder, and a plurality of connecting guide holes are provided inside the cylinder wall of the synchronous installation cylinder, with the two ends of the connecting guide holes respectively connected to the annular airbag and the annular guide cylinder.

[0019] As a further embodiment of the present invention: the outer side of the annular guide tube is provided with a number of pneumatic telescopic columns at equal angles in conjunction with the adjusting mounting plate, and the outer end of each pneumatic telescopic column is provided with a top block.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] Achieving highly efficient integrated collaborative operations greatly improves cleaning efficiency:

[0022] This device innovatively integrates three major functions—mechanical loosening, solution spraying, and negative pressure suction—into a single unit, enabling simultaneous and coordinated operation. During the movement of the traction equipment, the device continuously breaks up and pries out sediment, dissolves and softens it, and immediately suctions it away. This continuous closed-loop process of "loosening-dissolving-removing" avoids the intervals and secondary treatments required in traditional step-by-step operations, significantly shortening the downtime for tank cleaning and resulting in a qualitative improvement in overall cleaning efficiency.

[0023] It possesses excellent self-adaptability and adjustability, and is widely adaptable to various operating conditions.

[0024] The device is designed with a multi-level adjustable mechanism, which can flexibly adapt to different sediment conditions and operational requirements:

[0025] Adjustable working depth: The drilling depth of the tapered feed drill bit is controlled by driving the telescopic column, thereby matching the deposition layer of different thicknesses.

[0026] Adjustable spray angle and range: The universal guide tube is flexible and can be adjusted to adjust the spatial position and spray angle of the atomizing nozzle to achieve precise or large-area spraying.

[0027] Adjustable loosening force and angle: By rotating the adjustment dial, the initial angle and prying stroke of the deflection mounting plate can be changed to cope with deposits of different hardness and adhesion.

[0028] These adjustment functions ensure that the device maintains optimal operating performance when faced with diverse field conditions.

[0029] The ingenious mechanical linkage design enables automated and efficient loosening:

[0030] The core advantage of the synchronous rotary loosening mechanism lies in its purely mechanical, automated operation mode. By driving the telescopic column to rise and fall, it cleverly transforms this into the downward pressure of the synchronous mounting cylinder and the compression of the annular airbag, which in turn drives the pneumatic telescopic column to push out, achieving automatic prying of the deflecting mounting plate. Simultaneously, as the device moves, the drive gear meshes with the steering ring gear, causing the loosening gear assembly to rotate, performing tangential friction, impact, and auxiliary crushing on the sediment. This "lifting equals prying, movement equals rotation" linkage mechanism achieves efficient and powerful automated mechanical loosening without the need for an additional complex control system.

[0031] A more thorough cleaning effectively ensures the safety and lifespan of the storage tank.

[0032] Deep processing: The combination of a tapered drill bit and a deflector plate that can be inserted into the deposits enables breaking and prying from within the deposit layer, solving the problem of incomplete surface cleaning.

[0033] Chemical assistance: Simultaneous internal and external spraying can dissolve soluble components before or at the same time as mechanical action, fundamentally reducing the overall strength and cohesiveness of the sediment.

[0034] Instant removal: The enhanced local high negative pressure suction by the spherical telescopic cover can quickly remove loose and broken fragments, preventing secondary deposition.

[0035] This multi-pronged approach ensures that the sediment at the bottom of the tank is completely removed, greatly reducing the risks of localized overheating and corrosion caused by the sediment, and guaranteeing the long-term safe operation of the storage tank.

[0036] High operational safety and easy to use:

[0037] The device can be remotely moved and operated via traction equipment, enabling personnel to work without entering the tank, fundamentally avoiding the direct risks to operators from high temperatures, confined spaces, and hazardous substances. Each functional module is centrally driven and controlled by external equipment, simplifying on-site operation procedures and reducing labor intensity and skill requirements.

[0038] The structural design is reliable and easy to maintain.

[0039] The device adopts a modular design, with each mechanism operating relatively independently yet collaboratively. Key transmission and sealing components are rationally designed to ensure operational reliability under harsh conditions. Furthermore, easily damaged parts such as nozzles and drill bits are easy to inspect and replace, simplifying maintenance. Attached Figure Description

[0040] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0041] Figure 1 This is a top-side three-dimensional structural diagram of a device for mechanically loosening sediment at the bottom of a molten salt storage tank and assisting in salt removal.

[0042] Figure 2 This is a side-view three-dimensional structural diagram of a device for mechanically loosening sediment at the bottom of a molten salt storage tank and assisting in salt removal.

[0043] Figure 3 This is a partial cross-sectional schematic diagram of the internal and external synchronous spraying mechanism in a device for mechanically loosening sediment at the bottom of a molten salt storage tank and assisting in salt removal.

[0044] Figure 4 This is a partial cross-sectional schematic diagram of the internal and external synchronous spraying mechanism and the synchronous rotating loosening mechanism in a mechanical loosening and auxiliary salt discharge device for bottom sediments of a molten salt storage tank.

[0045] Figure 5 This is a partial cross-sectional schematic diagram of the flow-limiting installation cylinder in a device for mechanically loosening sediment at the bottom of a molten salt storage tank and assisting in salt discharge.

[0046] Figure 6 for Figure 5 An enlarged schematic diagram of point a in the middle.

[0047] Figure 7 This is a partial cross-sectional schematic diagram of the synchronous lifting module in a device for mechanically loosening sediment at the bottom of a molten salt storage tank and assisting in salt removal.

[0048] Figure 8 This is a partial cross-sectional schematic diagram of the follow-up loosening module of a mechanical loosening and auxiliary salt discharge device for bottom sediments in a molten salt storage tank.

[0049] Figure 9 This is a three-dimensional structural diagram of one side of a deflection mounting plate in a device for mechanically loosening sediment at the bottom of a molten salt storage tank and assisting in salt removal.

[0050] Figure 10 This is a three-dimensional structural diagram of the other side of a deflection mounting plate in a device for mechanically loosening sediment at the bottom of a molten salt storage tank and assisting in salt removal.

[0051] Figure 11 This is a half-sectional schematic diagram of a device for mechanically loosening sediment at the bottom of a molten salt storage tank and assisting in salt discharge, located at the limit bearing sleeve.

[0052] 1-Assembly mounting plate, 2-Fixed mounting ring, 3-Power supply line, 4-Variable diameter mounting cylinder, 5-Connecting mounting cylinder, 6-Liquid inlet pipe, 7-Conical mounting cylinder, 8-Universal guide tube, 9-Limiting rotating sleeve, 10-Loosening block, 11-Spherical telescopic cover, 12-Conical feed drill bit, 13-Synchronous mounting cylinder, 14-Annular airbag, 15-Connecting flange, 16-Atomizing nozzle, 17-Annular guide cavity, 18-Jet nozzle, 19-Flow limiting mounting cylinder, 20-Drive gear, 21-Limiting rotating ring, 22-Material guide mounting frame, 23-Adjusting mounting plate, 24-Drive telescopic Column, 25-Displacement mounting plate, 26-Working drive component, 27-Sealed rotating ring, 28-Limiting guide groove, 29-Adjusting mounting plate, 30-Top block, 31-Connecting guide hole, 32-Limiting guide column, 33-Pneumatic telescopic column, 34-Annular guide tube, 35-Steering gear ring, 36-Follower mounting bracket, 37-Follower rotating column, 38-Deflection mounting plate, 39-Loosening tooth, 40-Directional guide column, 41-Limiting bearing sleeve, 42-Limiting rotating shaft, 43-Adjusting stud, 44-Adjusting turntable, 45-Directional guide hole, 46-Limiting recess, 47-Adjusting screw cylinder. Detailed Implementation

[0053] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0054] The following disclosure provides numerous different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0055] Example 1, please refer to Figures 1-4 In this embodiment of the invention, a device for mechanically loosening sediment at the bottom of a molten salt storage tank and assisting in salt removal includes a combined mounting plate 1, on which a plurality of fixed mounting rings 2 are arranged at equal angles, and a connecting mounting cylinder 5 is provided through the combined mounting plate 1. A variable diameter mounting cylinder 4 is provided at one end of the connecting mounting cylinder 5, and a power supply line 3 is connected to the combined mounting plate 1. The device also includes a suction and salt removal mechanism, an internal and external synchronous spraying mechanism, and a synchronous rotation loosening mechanism.

[0056] The internal and external synchronous spraying mechanism is set on the conical mounting cylinder 7, including an annular guide cavity 17 embedded in the cylinder wall of the conical mounting cylinder 7. An inlet pipe 6 is connected to the annular guide cavity 17. The inlet pipe 6 passes through the conical mounting cylinder 7, the variable diameter mounting cylinder 4 and the combined mounting plate 1 in sequence, and a connecting flange 15 is provided at the outer end of the inlet pipe 6.

[0057] The inner wall of the conical mounting cylinder 7 is uniformly provided with a plurality of jet nozzles 18, and all jet nozzles 18 are connected to the annular guide cavity 17.

[0058] The outer side of the conical mounting cylinder 7 is provided with several universal guide tubes 8 at equal angles. One end of the universal guide tube 8 is connected to the annular guide cavity 17, and the other end of the universal guide tube 8 is provided with an atomizing nozzle 16.

[0059] The combined mounting plate 1 is installed on the external traction equipment by fixing the mounting ring 2, so that the device can operate as the traction equipment moves. At the same time, the connecting mounting cylinder 5 is connected to the external suction equipment, the power supply line 3 is connected to the external power supply equipment, and the liquid inlet pipe 6 is connected to the external liquid supply equipment through the flange.

[0060] As the machinery loosens, the external liquid supply equipment introduces the prepared liquid into the annular guide cavity 17 through the liquid inlet pipe 6. Part of the liquid is flushed into the inner side of the conical mounting cylinder 7 through the jet nozzle 18, and the other part of the liquid is discharged through the universal guide pipe 8 and its atomizing nozzle 16 to spray the molten salt deposits at the bottom of the tank near the working surface of the synchronous rotating loosening mechanism and the device.

[0061] The spraying position and angle of the atomizing nozzle 16 can be adjusted by adjusting the degree and direction of the bend of the universal guide tube 8 to adapt to the requirements of different operations.

[0062] Spraying a specific solution can dissolve soluble and readily soluble components in molten salt in advance or simultaneously, while jet flushing loosens molten salt deposits, facilitating subsequent mechanical loosening and salt removal.

[0063] Example 2, based on Example 1, please refer to... Figures 1-4 In this embodiment of the invention, the suction and salt discharge mechanism is set on the variable diameter mounting cylinder 4. The suction and salt discharge mechanism includes a conical mounting cylinder 7 connected to the end of the variable diameter mounting cylinder 4. A flow-limiting mounting cylinder 19 is set at the end of the conical mounting cylinder 7. A feed depth adjustment module is set inside the conical mounting cylinder 7.

[0064] The feed depth adjustment module includes an adjustment mounting plate 23 installed inside a conical mounting cylinder 7. The outer side of the adjustment mounting plate 23 is connected to the inner wall of the conical mounting cylinder 7 via a guide mounting frame 22. A displacement mounting plate 25 is installed opposite the adjustment mounting plate 23. One side of the displacement mounting plate 25 is connected to the adjustment mounting plate 23 via a drive telescopic column 24. A working drive component 26 is installed on the other side of the displacement mounting plate 25. A conical feed drill bit 12 is installed on the working drive component 26. A spherical telescopic cover 11 is installed on the outer side of the displacement mounting plate 25 in conjunction with the conical feed drill bit 12.

[0065] The externally installed suction device continuously and at high speed draws out the air from the connecting installation cylinder 5, the variable diameter installation cylinder 4 and the conical installation cylinder 7, causing a negative pressure to be generated in the conical installation cylinder 7. At this time, the loosened and broken sediment fragments of the synchronously rotating loosening mechanism are sucked into the conical installation cylinder 7 and discharged along the variable diameter installation cylinder 4 and the connecting installation cylinder 5, thus completing the suction and desalination operation.

[0066] Because the conical mounting cylinder 7 is equipped with a material guide mounting frame 22, the extracted sediment can be smoothly introduced into the variable diameter mounting cylinder 4. The distance between the adjustment mounting plate 23 and the displacement mounting plate 25 is controlled by the drive telescopic column 24, thereby adjusting the depth of the conical feed drill bit 12 into the sediment. At the same time, the drive telescopic column 24 realizes the lifting and lowering of the device through the conical feed drill bit 12.

[0067] The spherical telescopic cover 11 can reduce the actual flow cross-sectional area inside the conical mounting cylinder 7, increase the negative pressure intensity inside the conical mounting cylinder 7, and further improve the efficiency and quality of suction.

[0068] Example 3, based on Example 2, please refer to... Figures 1 to 11In this embodiment of the invention, a synchronous rotation loosening mechanism is disposed on the outside of the conical mounting cylinder 7. The synchronous rotation loosening mechanism includes a limiting rotation ring 21 disposed on the outside of the conical mounting cylinder 7, a limiting rotation sleeve 9 disposed in conjunction with the limiting rotation ring 21, and a sealed rotation ring 27 disposed on both sides of the limiting rotation sleeve 9 in conjunction with the conical mounting cylinder 7 and the flow-limiting mounting cylinder 19, respectively. A plurality of follow-up loosening modules are disposed at equal angles on the outside of the limiting rotation sleeve 9. A synchronous lifting module is disposed on the flow-limiting mounting cylinder 19. A steering gear ring 35 is disposed on the inner side of the sealed rotation ring 27 corresponding to the flow-limiting mounting cylinder 19. A plurality of drive gears 20 are disposed at equal angles on the outside of the flow-limiting mounting cylinder 19, and all drive gears 20 mesh with the steering gear ring 35.

[0069] The following loosening module includes a following mounting frame 36 that is set at equal angles on the outside of the limiting rotating sleeve 9. A following rotating column 37 is rotatably mounted on the following mounting frame 36. A deflection mounting plate 38 is connected to the outside of the following rotating column 37. A loosening block 10 is provided at the outer end of the deflection mounting plate 38. A plurality of loosening teeth 39 are provided on one side of the loosening block 10.

[0070] An adjustment mounting plate 29 is provided directly opposite the side of the deflection mounting plate 38 facing the flow-limiting mounting cylinder 19. An adjustment screw cylinder 47 is provided through the deflection mounting plate 38 directly opposite the adjustment mounting plate 29. An adjustment stud 43 is provided in conjunction with the adjustment screw cylinder 47. An adjustment turntable 44 is provided at one end of the adjustment stud 43, and a limit shaft 42 is provided at the other end of the adjustment stud 43. A limit bearing sleeve 41 is provided on one side of the adjustment mounting plate 29 in conjunction with the limit shaft 42. A limit recess 46 is provided on one side of the deflection mounting plate 38 in conjunction with the limit bearing sleeve 41. A plurality of directional guide posts 40 are provided on one side of the adjustment mounting plate 29, and each of the deflection mounting plate 38 and the directional guide posts 40 is provided with a directional guide hole 45.

[0071] The synchronous lifting module includes a synchronous mounting cylinder 13 facing the current limiting mounting cylinder 19. An annular guide cylinder 34 is provided at one end of the synchronous mounting cylinder 13 facing the current limiting mounting cylinder 19. A plurality of limiting guide columns 32 are provided at equal angles on the outer side of the annular guide cylinder 34. The current limiting mounting cylinder 19 and the limiting guide columns 32 are both provided with limiting guide grooves 28.

[0072] The other end of the synchronous installation cylinder 13 is provided with an annular airbag 14. The cylinder wall of the synchronous installation cylinder 13 is provided with a plurality of connecting guide holes 31. The two ends of the connecting guide holes 31 are respectively connected to the annular airbag 14 and the annular guide cylinder 34.

[0073] The outer side of the annular guide tube 34 is equipped with several pneumatic telescopic columns 33 at equal angles in conjunction with the adjusting mounting plate 29, and each pneumatic telescopic column 33 has a top block 30 at its outer end.

[0074] When the conical feed drill bit 12 drills into the sediment, the position of the synchronous rotation loosening mechanism and its follow-up loosening module and synchronous lifting module are changed by adjusting the extension and retraction of the drive telescopic column 24, thereby realizing the mechanical loosening of the sediment.

[0075] Specifically, when the drive telescopic column 24 lifts the conical mounting cylinder 7 via the guide mounting frame 22, correspondingly, with the cooperation of the limiting guide column 32 and the limiting guide groove 28, the synchronous mounting cylinder 13, along with the annular guide cylinder 34 and the annular airbag 14 on it, descends synchronously. Under the action of gravity, the loosening block 10 rotates around the follower rotating column 37 at a certain angle with the deflection mounting plate 38 until the end of the loosening block 10 faces downward. Then, the drive telescopic column 24 retracts. As the conical mounting cylinder 7 falls, the loosening teeth 39 cause the loosening block 10 to insert into the sediment. With the further retraction of the drive telescopic column 24, the space between the annular guide cylinder 34 and the flow-limiting mounting cylinder 19... The distance is reduced until the relative movement limit of the limiting guide column 32 and the limiting guide groove 28 is reached. The annular airbag 14 is squeezed by the annular guide cylinder 34 and the synchronous installation cylinder 13, causing the annular airbag 14 to deform and increase pressure. The pressurized gas enters the annular guide cylinder 34 through the connecting guide hole 31, causing the pneumatic telescopic column 33 to extend. This causes the top block 30 to push the adjusting installation plate 29, thereby realizing the deflection installation plate 38 to rotate around the follower rotating column 37. At this time, the loosening block 10 inserted on the sediment pryes the sediment with the rotation of the deflection installation plate 38. As the device moves, the above operation is repeated to continuously pry the sediment at multiple points, thereby realizing the mechanical loosening of the sediment.

[0076] When the loosening teeth 39 and the loosening blocks 10 are inserted into the sediment, the drive gears 20 mesh with the steering gear rings 35, causing the limiting rotating sleeves 9 and the limiting rotating rings 21 to rotate at a certain angle, ensuring that the top block 30 is always facing the adjusting mounting plate 29. At this time, the upper part of the loosening teeth 39 can rub against the sediment and impact the loosened sediment, causing it to break. The loosening blocks 10 that have been inserted into the sediment can loosen the sediment along the tangential direction, significantly improving the efficiency and quality of mechanical loosening, which facilitates the subsequent suction and discharge of molten salt sediment fragments.

[0077] It can also rotate the adjustment turntable 44 according to the progress and efficiency of the mechanical loosening of sediment, so that the adjustment stud 43 and the adjustment cylinder 47 rotate at a certain angle. With the cooperation of the limiting shaft 42 and the limiting bearing sleeve 41, as well as the cooperation of the directional guide post 40 and the directional guide hole 45, the distance between the adjustment mounting plate 29 and the deflection mounting plate 38 can be adjusted, thereby adjusting the angle at which the loosening block 10 is inserted into the sediment and the rotation angle of the deflection mounting plate 38.

[0078] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0079] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A device for mechanically loosening sediment at the bottom of a molten salt storage tank and assisting in salt removal, comprising a combined mounting plate, wherein a plurality of fixing mounting rings are arranged at equal angles on the combined mounting plate, a connecting mounting cylinder is provided through the combined mounting plate, one end of the connecting mounting cylinder is provided with a reducing mounting cylinder, and a power supply line is connected to the combined mounting plate, characterized in that, Also include: Suction salt discharge mechanism is arranged on the variable diameter installation cylinder, the suction salt discharge mechanism includes the taper face installation cylinder which is connected and arranged at the end of the variable diameter installation cylinder, the end of the taper face installation cylinder is provided with a flow limiting installation cylinder, the inside of the taper face installation cylinder is provided with a feeding depth adjusting module; The synchronous rotation loosening mechanism is arranged outside the taper face installation cylinder, the synchronous rotation loosening mechanism includes a limiting rotation ring arranged outside the taper face installation cylinder, a limiting rotation sleeve matched with the limiting rotation ring, airtight rotation rings arranged on both sides of the limiting rotation sleeve matched with the taper face installation cylinder and the flow limiting installation cylinder, a plurality of follow-up loosening modules arranged at equal angles outside the limiting rotation sleeve, and a synchronous lifting module arranged on the flow limiting installation cylinder. The inside and outside synchronous spraying mechanism is arranged on the taper face installation cylinder and includes a ring-shaped flow guide cavity embedded in the wall of the taper face installation cylinder, a liquid inlet pipe communicated and arranged on the ring-shaped flow guide cavity, the liquid inlet pipe sequentially penetrating through the taper face installation cylinder, the variable diameter installation cylinder and the combined installation plate, and a connecting flange arranged at the outer end of the liquid inlet pipe.

2. A molten salt tank bottom sediment mechanical loosening and assisted salt draining apparatus according to claim 1, characterized in that, The inside of the airtight rotation ring corresponding to the flow limiting installation cylinder is provided with a steering gear ring, and the outside of the flow limiting installation cylinder is provided with a plurality of drive gears arranged at equal angles.

3. A molten salt tank bottom sediment mechanical loosening and assisted salt draining apparatus as claimed in claim 1, wherein, The inner wall of the taper face installation cylinder is uniformly provided with a plurality of jet nozzles, and the jet nozzles are in communication with the ring-shaped flow guide cavity.

4. A molten salt tank bottom sediment mechanical loosening and assisted salt draining apparatus according to claim 3, characterized in that, The outside of the taper face installation cylinder is provided with a plurality of universal flow guide pipes arranged at equal angles, one end of the universal flow guide pipe is in communication with the ring-shaped flow guide cavity, and the other end of the universal flow guide pipe is provided with an atomizing nozzle.

5. A molten salt tank bottom sediment mechanical loosening and assisted salt draining apparatus as claimed in claim 1, wherein, The feeding depth adjusting module includes an adjusting installation disc arranged in the taper face installation cylinder, the outside of the adjusting installation disc is connected with the inner wall of the taper face installation cylinder through a material guiding installation frame, a displacement installation disc is arranged opposite to the adjusting installation disc, one side of the displacement installation disc is connected with the adjusting installation disc through a drive telescopic column, the other side of the displacement installation disc is provided with a working drive part, and a tapered feeding drill bit is arranged on the working drive part.

6. A molten salt tank bottom sediment mechanical loosening and assisted salt draining apparatus according to claim 5, characterized in that, The outside of the displacement installation disc is provided with a spherical telescopic cover matched with the tapered feeding drill bit.

7. A molten salt tank bottom sediment mechanical loosening and assisted salt draining apparatus as claimed in claim 1, wherein, The follow-up loosening module includes a follow-up installation frame arranged at equal angles outside the limiting rotation sleeve, a follow-up rotating column rotatably arranged on the follow-up installation frame, a deflection installation plate connected and arranged outside the follow-up rotating column, a loosening block arranged at the outer end of the deflection installation plate, and a plurality of loosening teeth arranged on one side of the loosening block.

8. A molten salt tank bottom sediment mechanical loosening and assisted salt draining apparatus according to claim 7, characterized in that, One side of the deflection installation plate opposite to the flow limiting installation cylinder is provided with an adjusting installation plate, an adjusting screw cylinder is arranged through the deflection installation plate opposite to the adjusting installation plate, an adjusting screw column is matched with the adjusting screw cylinder, one end of the adjusting screw column is provided with an adjusting turntable, the other end of the adjusting screw column is provided with a limiting rotation shaft, one side of the adjusting installation plate is provided with a limiting bearing sleeve matched with the limiting rotation shaft, one side of the deflection installation plate is provided with a limiting concave hole matched with the limiting bearing sleeve, one side of the adjusting installation plate is provided with a plurality of directional guide columns, and the deflection installation plate is provided with directional guide holes matched with the directional guide columns.

9. A molten salt tank bottom sediment mechanical loosening and assisted salt draining apparatus according to claim 8, characterized in that, The synchronous lifting module comprises a synchronous mounting cylinder which is arranged opposite to the flow-limiting mounting cylinder, and the end of the synchronous mounting cylinder opposite to the flow-limiting mounting cylinder is provided with an annular flow guide cylinder, a plurality of limiting guide columns are arranged at equal angles outside the annular flow guide cylinder, and the flow-limiting mounting cylinder is provided with a limiting guide groove matched with the limiting guide column.

10. A molten salt tank bottom sediment mechanical loosening and assisted salt removal apparatus according to claim 9, characterized in that, The other end of the synchronous mounting cylinder is provided with an annular air bag, a plurality of communication guide holes are arranged in the wall of the synchronous mounting cylinder, the two ends of the communication guide holes are respectively communicated with the annular air bag and the annular flow guide cylinder, a plurality of pneumatic telescopic columns are arranged at equal angles outside the annular flow guide cylinder matched with the adjusting mounting plate, and the outer end of each pneumatic telescopic column is provided with a top block.

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