CN215465118U

CN215465118U - Lifting type sand washing device of sand washing platform

Info

Publication number: CN215465118U
Application number: CN202121109840.3U
Authority: CN
Inventors: 赵海丰; 杨刚; 师松涛; 李志立; 曹忠辉; 郝卫; 刘自晖; 杨程开; 莫建中
Original assignee: CCCC Tianjin Dredging Co Ltd; CCCC TDC Southern Communications Construction Co Ltd
Current assignee: CCCC Tianjin Dredging Co Ltd; CCCC TDC Southern Communications Construction Co Ltd
Priority date: 2021-05-21
Filing date: 2021-05-21
Publication date: 2022-01-11
Anticipated expiration: 2031-05-21

Abstract

The utility model relates to a lifting type sand washing device of a sand washing platform. The sand washing device comprises a sand washing tank, wherein side wall bodies are arranged on two sides of the sand washing tank, an inclined bottom plate is arranged between the side wall bodies, and the lower edge of the inclined bottom plate is in butt joint connection with the front edge of the sand washing tank; the sand washing machine further comprises an inner frame, wherein an upper rotating roller is mounted at the upper end of the inner frame, a lower rotating roller is mounted at the lower end of the inner frame, a conveying belt is mounted between the upper rotating roller and the lower rotating roller, a plurality of sand washing hoppers are mounted on the conveying belt, a support is mounted at the upper part of the inclined bottom plate, a shaft seat is mounted on the support, and the upper rotating roller is mounted on the shaft seat; the lower end of the inner frame is provided with a suspension arm, the lower end of the suspension arm is hinged with the inner frame, the lifting device further comprises a lifting driving platform, and a pulley block is arranged between the lifting driving platform and the upper end of the suspension arm. The lifting type sand washing device is reasonable in structural design, has the function of stirring the sand washing pool, and improves the sand taking and washing efficiency.

Description

Lifting type sand washing device of sand washing platform

Technical Field

The utility model belongs to the technical field of dredging construction equipment, and particularly relates to a lifting type sand washing device of a sand washing platform.

Background

In the technical field of dredging construction, sand is generally mined by adopting a sand mining construction process, and a sand source obtained by sand mining construction is subjected to land reclamation construction to form land. The sand source obtained by sand mining construction usually contains large soil and stone impurities, and on the other hand, dredging impurities such as stones, hard clay and the like dumped by earlier construction units are distributed on the surface of the covering layer of the sand mining area to different degrees, and part of the dredging impurities sink and are embedded into a sludge layer, so that the collected sand source cannot meet the requirements of project construction on the quality of the sand source, screening treatment is needed, and the large-particle impurities in the sand source are filtered to obtain a qualified sand source for land reclamation. Furthermore, construction of a project usually requires a certain mud content of the sand source, and therefore the obtained mud usually needs to be washed to remove the excess mud.

In order to achieve the sand production purpose and the sand washing effect, a sand washing platform needs to be constructed. The sand washing platform is used for providing a screening and filtering function of the sand source and a sand washing function, wherein the screening and filtering function is used for removing large sundries in the sand source, and the sand washing function is used for reducing the mud content of the sand source. After a sand production facility collects sand sources containing mud and large impurities from the water bottom, the sand sources are firstly conveyed to a screening and filtering device, the large impurities are filtered to obtain a mixture of the sand sources and the mud water with proper particle size, then the sand-water mixture enters a sand washing device for sand washing treatment, the sand washing principle is that the mud water is usually separated from the sand sources, and most of the mud contained in the sand sources is taken away by the mud water.

From the foregoing, the quality of the structural design of the sand washing device, which is the core device of the sand washing platform, directly determines the sand washing efficiency and the sand washing effect. Under the general condition, the sand washing device can be selected as a lifting type sand washing scheme, namely, a sand washing hopper is adopted to lift a sand-water mixture, a sand source is settled at the bottom in the operation process of the sand washing hopper, mud water is distributed at the upper layer, and after the sand washing hopper is turned over, the mud water at the upper layer is separated from the sand source at the lower layer, so that the sand source can be collected.

Because the sand-water mixture is in a relatively static state after entering the sand washing tank (namely, muddy water and a sand source are layered in the sand washing tank), the disturbance effect on the sand washing tank is limited in the process that the sand washing hopper is lifted after entering the sand washing tank in a constant motion. On the other hand, the sand washing hopper with constant motion can only take sand from a single position, so that during long-time operation, sand sources in certain areas in the sand washing tank are easily and effectively acquired, sand washing is completed during lifting motion, and sand sources in other areas are less acquired, so that accumulation of the sand sources in the positions is easily caused. The sand taking and washing efficiency of the sand washing device is reduced due to the defects, and the operation efficiency of the sand washing platform as a sand source obtaining and loading platform is further reduced.

SUMMERY OF THE UTILITY MODEL

The utility model provides the lifting type sand washing device of the sand washing platform, which is reasonable in structural design and has the function of stirring the sand washing tank, and aims to solve the technical problems in the prior art, so that the sand taking and washing efficiency is improved.

The technical scheme adopted by the utility model for solving the technical problems in the prior art is as follows: a lifting type sand washing device of a sand washing platform comprises a sand washing pool, wherein side wall bodies are arranged on two sides of the sand washing pool, an inclined bottom plate is arranged between the two side wall bodies, and the lower edge of the inclined bottom plate is in butt joint connection with the front edge of the sand washing pool; the sand washing machine further comprises an inner frame, wherein an upper rotating roller is mounted at the upper end of the inner frame, a lower rotating roller is mounted at the lower end of the inner frame, a conveying belt is mounted between the upper rotating roller and the lower rotating roller, a plurality of sand washing hoppers are mounted on the conveying belt, a support is mounted at the upper part of the inclined bottom plate, a shaft seat is mounted on the support, and the upper rotating roller is mounted on the shaft seat; the lower end of the inner frame is provided with a suspension arm, the lower end of the suspension arm is hinged with the inner frame, the lifting device further comprises a lifting driving platform, and a pulley block is arranged between the lifting driving platform and the upper end of the suspension arm.

The utility model has the advantages and positive effects that:

compared with the existing sand washing device, the lifting type sand washing device of the sand washing platform is reasonable in structural design, and the circulating movement of the sand washing hopper is realized by arranging the inner frame, the conveying belt and the plurality of sand washing hoppers, so that the continuous sand washing operation effect is realized. Through setting up lift drive platform and adopting assembly pulley and davit and internal frame connection, realized the hoist and mount lift drive effect of internal frame lower extreme, can promote or descend the lower extreme of internal frame at the in-process of washing sand operation like this, adjusted the sand position of getting of washing sand fill promptly, therefore wash the sand position of getting of sand fill in the washing sand pond and change, do not acquire the sand water mixture in single position, consequently avoided piling up of some regions of sand source in the washing sand pond. On the other hand, in the process of lifting and moving the lower end of the inner frame, the sand-water mixture in the sand washing tank is stirred, and under the action of hydraulic stirring and scouring, a sand source in the sand washing tank is gathered to a low position in the sand washing tank, so that a specific area which is stagnant in the sand washing tank is avoided. Therefore, the lifting type sand washing device can improve the efficiency of sand taking and sand washing, and guarantees the effect of sand taking and sand washing.

Preferably: the lifting driving platform comprises a first cross beam and a second cross beam which are oppositely arranged, a platform supporting plate is arranged between the first cross beam and the second cross beam, a motor and a reduction gearbox are arranged on the platform supporting plate, an output shaft of the motor is in butt joint with an input shaft of the reduction gearbox, a steel cable reel is further arranged on the platform supporting plate, and a rotating shaft of the steel cable reel is in butt joint with an output shaft of the reduction gearbox; the middle part of the platform supporting plate is also provided with a steel cable window, a cable guide wheel is arranged between the steel cable window and the steel cable reel, and the steel cable wound and unwound by the steel cable reel bypasses the cable guide wheel and passes through the steel cable window.

Preferably: the lower end of the inner frame is hinged with two suspension arms, the number of the pulley blocks is correspondingly set into two groups, and the number of the cable guide wheels is correspondingly set into two.

Preferably: the pulley block comprises a fixed pulley arranged at the bottom of the lifting driving platform and a movable pulley arranged at the upper end of the suspension arm, and a steel cable wound and unwound by a steel cable reel is arranged on the fixed pulley and the movable pulley.

Preferably: a supporting beam is arranged between the bottoms of the first beam and the second beam, and a fixed pulley of the pulley block is arranged below the supporting beam.

Preferably: and a safety chain is arranged between the inner frame and the supporting beam, the upper end of the safety chain is fixedly connected with the supporting beam, and the lower end of the safety chain is fixedly connected with the inner frame.

Preferably: a plurality of supporting rollers are arranged on the upper part of the inner frame along the length direction, and each supporting roller supports the conveying belt.

Preferably: the sand washing device further comprises an input pipeline for conveying the sand-water mixture into the sand washing pool, and the input pipeline is fixedly arranged between the rear parts of the two side wall plates.

Preferably: the lifting driving platform further comprises a safety guardrail, and the safety guardrail is installed and fixed on the inner side edge of the platform supporting plate.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a front view of the lift drive platform of FIG. 1;

fig. 3 is a schematic perspective view, from the top, of the lifting driving platform in fig. 1.

In the figure:

1. a side wall; 2. an inclined floor; 3. a support; 4. a shaft seat; 5. an upper roller; 6. a driver; 7. washing a sand hopper; 8. a conveyor belt; 9. a middle support roller; 10. an inner frame; 11. a safety chain; 12. a lifting drive platform; 12-1, a first beam; 12-2, a motor; 12-3, a second beam; 12-4, safety guardrails; 12-5, a reduction gearbox; 12-6, a cable guide wheel; 12-7, a wire rope window; 12-8, a cable reel; 12-9, a platform support plate; 13. a fixed pulley; 14. a movable pulley; 15. a suspension arm; 16. an input pipe; 17. a sand washing tank; 18. and a lower roller.

Detailed Description

In order to further understand the contents, features and effects of the present invention, the following embodiments are described in detail.

Referring to fig. 1, the lifting type sand washing device of the sand washing platform of the present invention includes a sand washing tank 17, side wall bodies 1 are disposed at both sides of the sand washing tank 17, an inclined bottom plate 2 is installed between the two side wall bodies 1, and the lower edge of the inclined bottom plate 2 is in butt joint with the front edge of the sand washing tank 17.

When building this over-and-under type sand washing device on the sand washing platform, establish sand washing tank 17 at the low level position of sand washing platform, with two lateral part wall bodies 1 and sand washing platform fixed connection, the fixed inclined floor 2 of installation between two lateral part wall bodies 1 makes the bottom edge of inclined floor 2 and the edge butt joint of sand washing tank 17 be connected. In the process of sand washing operation, mud water, sand sources and the like falling from the upper part fall on the inclined bottom plate 2, and then flow back to the sand washing tank 17 to participate in the subsequent sand washing operation process.

The sand washing machine further comprises an inner frame 10, an upper rotating roller 5 is installed at the upper end of the inner frame 10, a lower rotating roller 18 is installed at the lower end of the inner frame, a conveying belt 8 is installed between the upper rotating roller 5 and the lower rotating roller 18, and a plurality of sand washing hoppers 7 are installed on the conveying belt 8. The conveying belt 8 drives the sand washing hopper 7 to move synchronously in the moving process, so that the sand washing hopper 7 moves circularly, sand-water mixtures enter the hopper when the bottom of the sand washing hopper passes through the sand washing tank 17, the sand-water mixtures in the sand washing hopper 7 are settled and separated to form an upper mud-water layer and a lower sand-source layer in the lifting and conveying process, the sand washing hopper 7 turns over after reaching the top, the mud-water layer above the sand washing hopper leaves the sand washing hopper 7 in advance, namely, the mud-water layer is poured out when the sand washing hopper is not completely turned over, and after the sand source in the hopper is completely turned over, the sand source in the hopper is separated from the sand washing hopper 7 and falls down in a relatively vertical state, so that the sand washing effect is realized.

The upper part of the inclined bottom plate 2 is provided with a bracket 3, the bracket 3 is provided with a shaft seat 4, an upper roller 5 is arranged on the shaft seat 4, and the inclined bottom plate further comprises a driving machine 6 for driving the upper roller 5. Under the driving action of the driving machine 6, the upper roller 5 drives the conveying belt 8 to move, and then each sand washing hopper 7 circularly moves along with the conveying belt.

The lower end of the inner frame 10 is provided with a suspension arm 15, the lower end of the suspension arm 15 is hinged with the inner frame 10, the lifting device also comprises a lifting driving platform 12, and a pulley block is arranged between the lifting driving platform 12 and the upper end of the suspension arm 15. The lifting driving platform 12 drives the lower end of the inner frame 10 to move up and down through the pulley block and the suspension arm 15, the inner frame 10 and the accessory components rotate in a tilting mode by taking the axis of the upper rotating roller 5 as the center, and in the process of moving up and down the lower end of the inner frame 10, the sand taking position of the sand washing hopper 7 in the sand washing pool 17 is changed, sand is not taken at a single position, and meanwhile, the stirring effect on the sand washing pool 17 is provided.

In order to improve the moving stability of the sand washing hopper 7, in the present embodiment, a plurality of support rollers are installed on the upper portion of the inner frame 10 along the length direction, and each support roller supports the conveying belt 8.

Referring to fig. 2 and 3, it can be seen that:

the lifting driving platform 12 comprises a first beam 12-1 and a second beam 12-3 which are oppositely arranged, a platform supporting plate 12-9 is arranged between the first beam 12-1 and the second beam 12-3, and a supporting frame can be arranged between the first beam 12-1 and the second beam 12-3 to support the platform supporting plate 12-9 in order to ensure the supporting strength of the platform supporting plate 12-9.

A motor 12-2 and a reduction gearbox 12-5 are arranged on a platform support plate 12-9, an output shaft of the motor 12-2 is in butt joint with an input shaft of the reduction gearbox 12-5, a steel cable reel 12-8 is further arranged on the platform support plate 12-9, and a rotating shaft of the steel cable reel 12-8 is in butt joint with an output shaft of the reduction gearbox 12-5. Under the driving action of the motor 12-2, the steel cable reel 12-8 rotates forwards or reversely to wind or unwind the steel cable.

As shown in the drawings, the wire rope reel 12-8 includes a reel body, and a wire rope groove is formed on an outer wall of the reel body, and the wire rope is released from or enters the wire rope groove during winding and unwinding.

A cable window 12-7 is also arranged in the middle of the platform supporting plate 12-9, a cable guide wheel 12-6 is arranged between the cable window 12-7 and the cable reel 12-8, a cable wound and unwound by the cable reel 12-8 passes around the cable guide wheel 12-6 and passes through the cable window 12-7, and then the cable is wound on the pulley block.

In this embodiment, the pulley block comprises a fixed pulley 13 mounted at the bottom of the lifting driving platform 12 and a movable pulley 14 mounted at the upper end of the boom 15, and the cable wound and unwound by the cable reel 12-8 is wound on the fixed pulley 13 and the movable pulley 14.

In this embodiment, a supporting beam is installed between the bottoms of the first beam 12-1 and the second beam 12-3, and a fixed pulley 13 of the pulley block is installed below the supporting beam.

Considering that an operator moves on the lifting driving platform 12 to perform operations such as equipment maintenance and the like, the lifting driving platform 12 is provided with the safety guardrails 12-4, and the safety guardrails 12-4 are fixedly arranged on the inner side edges of the platform supporting plates 12-9, namely on one side of the sand washing pool 17, so that the operator is prevented from falling off the lifting driving platform 12 and entering the sand washing pool 17.

As shown in the figure, two said booms 15 are hingedly mounted at the lower end of the inner frame 10, the number of pulley blocks being correspondingly arranged in two groups and the fairleads 12-6 being correspondingly arranged in two groups. By providing a two-point hanger for the inner frame 10, the stability of the hanger in lifting driving movement is improved. At this time, the cable grooves on the cable reels 12-8 are provided with a left group and a right group, two cables are correspondingly provided, and the two cables are synchronously unreeled or reeled by the cable reels 12-8, so that the two pulley blocks synchronously act to generate the same lifting driving effect.

In order to improve the safety and prevent the problems that the lower end of the inner frame 10 falls and collides with the sand washing tank 17 when the lifting driving platform 12 loses power, in this embodiment, a safety chain 11 is arranged between the inner frame 10 and the supporting beam of the lifting driving platform 12, the upper end of the safety chain 11 is fixedly connected with the supporting beam, and the lower end of the safety chain 11 is fixedly connected with the inner frame 10. Thus, when the power of the lifting driving platform 12 is lost, the lower end of the inner frame 10 moves downwards, when the safety chain 11 is completely straightened, the inner frame 10 does not move downwards any more and stops at the position, and the sand washing hopper 7 at the lowest part still does not contact with the wall of the sand washing pool 17, thereby playing a safety protection role.

In this embodiment, the sand-water separator further comprises an input pipe 16 for conveying the sand-water mixture into the sand washing tank 17, and the input pipe 16 is fixedly installed between the rear parts of the two side wall plates 1. After the sand washing device is constructed on the sand washing platform, a sand source screening device is constructed behind the sand washing device, the sand source screening device is used for screening and filtering the collected sand source, large impurities contained in the sand are filtered, the end of the input pipeline 16 is in butt joint connection with an outlet of the sand source screening device, and the screened sand-water mixture is input into the sand washing pool 17 through the input pipeline 16.

The working process is as follows:

continuously inputting the sand-water mixture into the sand washing tank 17; starting the driving machine 6, and driving the sand washing hopper 7 to circularly move by the conveying belt 8; when the sand washing hopper 7 passes through the sand washing tank 17, the sand-water mixture in the tank enters the hopper, and in the lifting and conveying process, the sand-water mixture in the sand washing tank 17 is settled and layered, the upper layer is muddy water, and the lower layer is a sand source; after reaching the high position, the sand washing hopper 7 is gradually turned over, the muddy water on the upper layer is firstly poured out, and after being completely turned over, the sand source on the lower layer is separated from the hopper and falls down; thus, continuous and circulating sand washing operation is formed, in the process of the sand washing operation, the starting motor 12-2 rotates forwards or reversely, the lower end of the inner frame 10 moves up and down, and the technical effects of stirring the sand washing pool 17 and changing the sand taking position are achieved.

Claims

1. The utility model provides a sand washing platform's over-and-under type sand washing device, characterized by: the sand washing device comprises a sand washing tank (17), wherein side wall bodies (1) are arranged on two sides of the sand washing tank (17), an inclined bottom plate (2) is arranged between the two side wall bodies (1), and the lower edge of the inclined bottom plate (2) is in butt joint connection with the front edge of the sand washing tank (17); the sand washing machine further comprises an inner frame (10), an upper rotating roller (5) is mounted at the upper end of the inner frame (10), a lower rotating roller (18) is mounted at the lower end of the inner frame, a conveying belt (8) is mounted between the upper rotating roller (5) and the lower rotating roller (18), a plurality of sand washing hoppers (7) are mounted on the conveying belt (8), a support (3) is mounted on the upper portion of the inclined bottom plate (2), a shaft seat (4) is mounted on the support (3), the upper rotating roller (5) is mounted on the shaft seat (4), and the sand washing machine further comprises a driving machine (6) for driving the upper rotating roller (5); the crane boom structure comprises an inner frame (10), a boom (15) and a lifting driving platform (12), wherein the lower end of the inner frame (10) is provided with the boom (15), the lower end of the boom (15) is hinged with the inner frame (10), and a pulley block is arranged between the lifting driving platform (12) and the upper end of the boom (15).

2. The elevating sand washing apparatus of a sand washing platform as claimed in claim 1, wherein: the lifting driving platform (12) comprises a first cross beam (12-1) and a second cross beam (12-3) which are oppositely arranged, a platform supporting plate (12-9) is arranged between the first cross beam and the second cross beam, a motor (12-2) and a reduction gearbox (12-5) are arranged on the platform supporting plate (12-9), an output shaft of the motor (12-2) is in butt joint with an input shaft of the reduction gearbox (12-5), a steel cable reel (12-8) is further arranged on the platform supporting plate (12-9), and a rotating shaft of the steel cable reel (12-8) is in butt joint with an output shaft of the reduction gearbox (12-5); a steel cable window (12-7) is also arranged in the middle of the platform supporting plate (12-9), a cable guide wheel (12-6) is arranged between the steel cable window (12-7) and the steel cable reel (12-8), and the steel cable wound and unwound by the steel cable reel (12-8) bypasses the cable guide wheel (12-6) and passes through the steel cable window (12-7).

3. The elevating sand washing apparatus of a sand washing platform as claimed in claim 2, wherein: two suspension arms (15) are hinged to the lower end of the inner frame (10), the number of the pulley blocks is correspondingly two, and the number of the cable guide wheels (12-6) is correspondingly two.

4. The elevating sand washing apparatus of a sand washing platform as claimed in claim 3, wherein: the pulley block comprises a fixed pulley (13) arranged at the bottom of the lifting driving platform (12) and a movable pulley (14) arranged at the upper end of the suspension arm (15), and a steel cable wound and unwound by a steel cable reel (12-8) is wound on the fixed pulley (13) and the movable pulley (14).

5. The elevating sand washing apparatus of a sand washing platform as claimed in claim 4, wherein: a supporting beam is arranged between the bottoms of the first beam (12-1) and the second beam (12-3), and a fixed pulley (13) of the pulley block is arranged below the supporting beam.

6. The elevating sand washing apparatus of a sand washing platform as claimed in claim 5, wherein: a safety chain (11) is arranged between the inner frame (10) and the supporting beam, the upper end of the safety chain (11) is fixedly connected with the supporting beam, and the lower end of the safety chain is fixedly connected with the inner frame (10).

7. The elevating sand washing apparatus of a sand washing platform as claimed in claim 6, wherein: a plurality of supporting rollers are arranged on the upper part of the inner frame (10) along the length direction, and each supporting roller supports the conveying belt (8).

8. The elevating sand washing apparatus of a sand washing platform as claimed in claim 7, wherein: the sand washing device also comprises an input pipeline (16) for conveying the sand-water mixture into the sand washing pool (17), and the input pipeline (16) is fixedly arranged between the rear parts of the two side wall bodies (1).

9. The elevating sand washing apparatus of a sand washing platform as claimed in claim 8, wherein: the lifting driving platform (12) further comprises a safety guardrail (12-4), and the safety guardrail (12-4) is fixedly arranged on the inner side edge of the platform supporting plate (12-9).