WO2020252986A1

WO2020252986A1 - Prefiltering device for oil-containing waste liquid in ship production

Info

Publication number: WO2020252986A1
Application number: PCT/CN2019/110331
Authority: WO
Inventors: 李占鹏
Original assignee: 招商局重工(深圳)有限公司; 友联船厂（蛇口）有限公司
Priority date: 2019-06-17
Filing date: 2019-10-10
Publication date: 2020-12-24
Also published as: CN110180234A

Abstract

Provided is a prefiltering device for oil-containing waste liquid in ship production, comprising a treating box (1), a mounting rack (2) is fixed inside the treating box (1), a filter net (3) is fixed on the mounting rack (2), a stirring mechanism (4) is arranged on the upper side of the filter net (3), a first servo motor (6) is arranged on the outer side of the treating box (1), an output shaft of the first servo motor (6) is connected with a first belt pulley (7), second belt pulleys (8) are in transmission connection on two sides of the first belt pulley (7), each second belt pulley (8) is in key connection with a screw rod (9), a transmission nut (11) is in threaded connection on each screw rod (9), the transmission nuts (11) are inlaid in a material pushing plate (12), connecting rods (13) are welded to two sides of the upper end of the material pushing plate (12), a material baffle block (14) is welded to the end portions of the connecting rods (13), the material baffle block (14) is in tight contact with a discharge port (15), a recovery box (16) is arranged on the lower side of the discharge port (15). Filtered impurities can be automatically discharged and recovered, and the filtering speed and work efficiency are improved by stirring the liquid.

Description

Pre-filtering device for oily waste liquid in ship production

Technical field

The invention belongs to the technical field of waste liquid pre-filtering in ship production, and in particular relates to a pre-filtering device for oily waste liquid in ship production.

Background technique

Ship is a kind of man-made vehicle mainly operating in geographical water. It can sail or berth in water for transportation or operation. It has different technical performance, equipment and structure according to different usage requirements. The interior of the ship mainly includes accommodation space, support structure and drainage structure, and has a propulsion system that uses external or self-contained energy.

In the prior art, the steel surface of the ship, that is, the surface of the hull hull, needs to be painted in the production of ships, and rust removal is required before painting. The rust removal method will add a large amount of rust remover, emulsion, etc., and the waste contains A large amount of pollutants, oil, etc., these substances cannot be directly discharged into the external environmental seawater, and they need to be treated in a cycle test or discharged after reaching the standard. There are also many processing methods in the prior art, but the work efficiency is low and the cost is high. Therefore, those skilled in the art should realize fast, clean and simple methods to solve the above-mentioned problems.

Summary of the invention

The purpose of the present invention is to provide a pre-filtering device for oily waste liquid in ship production, which improves work efficiency, realizes automatic discharge by machinery, saves labor costs, and has high work efficiency.

In order to achieve the above objectives, the present invention adopts the following technical solutions:

A pre-filtering device for oily waste liquid in ship production, comprising a processing box, the top end of the processing box is connected with a feed pipe, the bottom end of the processing box is connected with a discharge pipe, and the inner middle of the processing box A mounting frame is fixed, a screen is fixed on the mounting frame, a stirring mechanism is arranged on the upper side of the screen, an installation box is welded in the middle of the outside of the processing box, and the inner bottom end of the installation box is fixed by bolts There is a first servo motor, the end of the output shaft of the first servo motor is keyed with a first pulley, both sides of the first pulley are connected with a second pulley through a conveyor belt, and the second pulley key is connected with A screw rod, one end of the screw rod away from the second pulley is rotatably connected with a mounting block through a bearing, and the mounting block is fixed on the inner wall of the processing box;

The screw is threaded and connected with a transmission nut, the transmission nut is inlaid on the pusher plate, the lower side of the pusher plate is in close contact with the screen, and the upper end of the pusher plate is welded on both sides A rod, one end of the connecting rod away from the pushing plate is welded with a stopper, the stopper is in close contact with a discharge port, the discharge port is arranged on the side wall of the processing box, and the discharge A recovery box is provided on the lower side of the mouth, and the recovery box is located on one side of the processing box.

Preferably, the stirring mechanism includes a second servo motor, the second servo motor is fixed to the top of the outer side of the installation box by bolts, the end of the output shaft of the second servo motor is fixed with a rotating shaft through a coupling, the The rotating shaft penetrates the processing box and is rotatably connected with the side wall of the processing box. The rotating shaft is welded with stirring blades, and the stirring blades are located at the inner upper end of the processing box.

Preferably, a protective cover is provided on the outer side of the second servo motor, and the protective cover is fixed to the top of the installation box by bolts.

Preferably, a rib is welded between the bottom end of the installation box and the bottom end side wall of the processing box.

Preferably, a sliding material plate is provided on the lower side of the discharging port, and the sliding material plate is fixed on the side wall of the processing box by bolts, and the two sides of the sliding material plate are provided with baffle plates. The lower side of the material board is located in the recycling bin.

Preferably, both sides of the lower end of the pushing plate are provided with sliding blocks, the sliding blocks slide in the sliding grooves, and the sliding grooves are arranged on the mounting frame.

Preferably, a sealing ring is arranged around the outer side of the discharge port, and the sealing ring is pasted on the outer wall of the processing box.

Preferably, the four corners of the lower end of the processing box are all welded with support legs, the bottom ends of the support legs are all welded with a stainless steel base, and the four corners of the recovery box are all fixed with self-locking universal wheels by bolts.

Technical effects and advantages of the present invention: Compared with the prior art, the pre-filtering device for oily waste liquid in ship production proposed by the present invention has the following advantages:

The present invention drives the first pulley to rotate through the first servo motor, and then the first pulley drives the second pulley to rotate through the conveyor belt, and then the second pulley drives the screw to rotate. The rotation of the screw drives the drive nut to move forward along the screw to drive The nut drives the pusher plate to move forward along the screw rod, and then the pusher plate moves forward along the screen, and then the pusher plate pushes the impurities filtered out on the screen to move forward, and the pusher plate moves forward to push the stopper through the connecting rod The block moves forward, and the blocking block is separated from the discharge port, and the impurities on the screen flow from the discharge port along the sliding plate into the recovery box, thereby realizing automatic discharge without manual discharge, saving labor costs and working efficient;

Furthermore, in the present invention, the second servo motor drives the rotating shaft to rotate, and then the rotating shaft drives the stirring blades to rotate in the processing box, and the stirring blades stir the unfiltered waste liquid at the upper end of the processing box, which speeds up the flow of the liquid, thereby accelerating Improved liquid filtration and improved work efficiency.

Description of the drawings

Figure 1 is a schematic structural diagram of a pre-filtering device for oily waste liquid in ship production according to the present invention;

Figure 2 is a perspective view of a pre-filtering device for oily waste liquid in ship production according to the present invention;

Fig. 3 is a schematic diagram of a material pushing structure of a pre-filtering device for oily waste liquid in ship production according to the present invention;

Fig. 4 is an enlarged view of A part of an oily waste liquid pre-filtering device used in ship production according to the present invention;

Fig. 5 is an exploded view of a material pushing structure of an oily waste liquid pre-filtering device used in ship production according to the present invention.

Among them, the reference signs of the present invention are:

1. Processing box; 101, feed pipe; 102, discharge pipe; 2. mounting frame; 3. screen; 4. stirring mechanism; 401, second servo motor; 402, coupling; 403, rotating shaft; 404 , Mixing blade; 405, protective cover; 5. installation box; 6, the first servo motor; 7, the first pulley; 8, the second pulley; 9, the screw rod; 10, the installation block; 11, the drive nut; 12. Pushing plate; 13, connecting rod; 14, stopper; 15, discharge port; 16, recovery box; 17, ribs; 18, sliding material plate; 19, baffle plate; 20, slider; 21, Chute; 22. Seal ring; 23. Support leg; 24. Stainless steel base; 25. Self-locking universal wheel.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The specific embodiments described here are only used to explain the present invention, but not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

The present invention provides a pre-filtering device for oily waste liquid in ship production as shown in Figures 1-5, which includes a processing tank 1, and a feed pipe 101 is connected to the top of the processing tank 1, and the processing tank 1 A discharge pipe 102 is connected to the bottom end of the processing box 1, a mounting frame 2 is fixed in the middle of the processing box 1, and a screen 3 is fixed on the mounting frame 2, and a stirring mechanism 4 is provided on the upper side of the screen 3, A mounting box 5 is welded to the middle of the outer side of the processing box 1, and the inner bottom end of the mounting box 5 is fixed with a first servo motor 6 through bolts. The output shaft end of the first servo motor 6 is keyed with a first Pulley 7, both sides of the first pulley 7 are connected with a second pulley 8 through a conveyor belt, the second pulley 8 is keyed with a screw rod 9, and the end of the screw rod 9 away from the second pulley 8 passes through a bearing A mounting block 10 is rotatably connected, and the mounting block 10 is fixed on the inner wall of the processing box 1;

The screw 9 is threadedly connected with a transmission nut 11, the transmission nut 11 is inlaid on the pusher plate 12, the lower side of the pusher plate 12 is in close contact with the screen 3, the pusher plate 12 A connecting rod 13 is welded on both sides of the upper end. A stopper 14 is welded on the end of the connecting rod 13 far away from the pushing plate 12. The stopper 14 is in close contact with a discharge port 15, and the discharge port 15 is arranged on the side wall of the processing box 1, a recovery box 16 is arranged on the lower side of the discharge port 15, and the recovery box 16 is located on one side of the processing box 1.

Preferably, the stirring mechanism 4 includes a second servo motor 401, the second servo motor 401 is fixed on the outer top end of the mounting box 5 by bolts, and the output shaft end of the second servo motor 401 passes through a coupling 402 is fixed with a rotating shaft 403 that penetrates the processing box 1 and is rotatably connected with the side wall of the processing box 1, and a stirring blade 404 is welded on the rotating shaft 403, and the stirring blade 404 is located at the upper inner end of the processing box 1.

By adopting the above technical solution, the second servo motor 401 drives the mixing blade 404 to agitate the unfiltered waste liquid at the upper end of the processing tank 1, which speeds up the flow of the liquid, thereby speeding up the liquid filtration and improving work efficiency.

Preferably, a protective cover 405 is provided on the outside of the second servo motor 401, and the protective cover 405 is fixed to the top of the mounting box 5 by bolts.

By adopting the above technical solution, the setting of the protective cover 405 realizes isolation and protection of the second servo motor 401 and prevents damage to it by foreign objects.

Preferably, a rib 17 is welded between the bottom end of the installation box 5 and the bottom end side wall of the processing box 1.

By adopting the above technical solution, the arrangement of the ribs 17 improves the firmness of the connection between the installation box 5 and the processing box 1, and improves the stability and firmness of the entire device during operation.

Preferably, a sliding material plate 18 is provided on the lower side of the discharge port 15. The sliding material plate 18 is fixed on the side wall of the processing box 1 by bolts, and both sides of the sliding material plate 18 are provided with stoppers. The material board 19, the lower side of the sliding material board 18 is located in the recovery box 16.

By adopting the above technical solution, the waste on the screen 3 is pushed by the pushing plate 12, and then flows out of the processing box 1 from the discharge port 15, and then flows into the recovery box 16 along the sliding plate 18, realizing the automatic recovery of the waste, which is convenient Work and work efficiency are high. The setting of the baffle plate 19 prevents the waste from flowing out of the two sides of the sliding plate 18 when it flows from the sliding plate 18, which plays a blocking role.

Preferably, sliding blocks 20 are provided on both sides of the lower end of the pushing plate 12, and the sliding blocks 20 slide in the sliding groove 21, and the sliding groove 21 is arranged on the mounting frame 2.

By adopting the above technical solution, the pusher plate 12 is driven by the sliding block 20 to slide along the sliding groove 21 on the mounting frame 2 to reduce friction and save energy. At the same time, the lower side of the pusher plate 12 is in close contact with the screen 3 , Easy to push materials.

Preferably, a sealing ring 22 is provided around the outer periphery of the discharge port 15, and the sealing ring 22 is pasted on the outer wall of the processing box 1.

By adopting the above technical solution, the sealing ring 22 is arranged when the stopper 14 is in contact with the discharge port 15 to prevent the liquid from flowing out of the gap between them, thereby playing a sealing role.

Preferably, the bottom four corners of the processing box 1 are all welded with support legs 23, the bottom ends of the support legs 23 are welded with a stainless steel base 24, and the bottom four corners of the recovery box 16 are all fixed with self-locking bolts. Lock the universal wheel 25.

By adopting the above technical solution, the arrangement of the supporting legs 23 and the stainless steel base 24 improves the stability and firmness of the entire device installation, and the arrangement of the self-locking universal wheels 25 facilitates the movement and fixation of the recovery box 16 and improves the mobility of the recovery box 16 And flexibility.

Here, we first discuss one of the commonly used methods in the prior art: the existing filter device filters closely to its own gravity when filtering, and the work efficiency is low, and the filtered impurities need to be discharged manually, which is inconvenient for discharging and low work efficiency. . The present invention is developed in view of this shortcoming and its relevance.

Working principle: First, add the waste liquid with treatment into the treatment tank 1 through the feed pipe 101, then start the second servo motor 401, and then the second servo motor 401 drives the rotating shaft 403 to rotate, and then the rotating shaft 403 drives the stirring blade 404 in the treatment tank 1 Inner rotation, and the stirring blade 404 stirs the unfiltered waste liquid at the upper end of the treatment tank 1, which speeds up the flow of the liquid, thereby speeding up the liquid filtration. The liquid flows into the lower side of the treatment tank 1 through the screen 3, and the solids in the liquid , Rust mud and other impurities are blocked by the screen 3 and remain on the screen 3;

When there are too many impurities on the screen 3, stop adding waste liquid to the treatment tank 1. After the waste liquid in the treatment tank 1 is filtered, start the first servo motor 6, and then the first servo motor 6 drives the first pulley 7 to rotate , And then the first pulley 7 drives the second pulley 8 to rotate through the conveyor belt, and then the second pulley 8 drives the screw 9 to rotate. The rotation of the screw 9 drives the transmission nut 11 to move forward along the screw 9, and then the transmission nut 11 drives the material pushing The plate 12 moves forward along the screw 9, and then the material pushing plate 12 moves forward along the screen 3, and then the material pushing plate 12 pushes the impurities filtered out on the screen 3 to move forward, and the material pushing plate 12 moves forward through the connection The rod 13 pushes the stopper 14 to move forward, and the stopper 14 is separated from the discharge port 15, and the impurities on the screen 3 flow from the discharge port 15 along the sliding plate 18 into the recovery box 16, thereby realizing automatic Discharging, without manual discharging, saving labor costs and high work efficiency;

After the pusher plate 12 pushes the waste on the screen 3, the first servo motor 6 reverses, and then drives the pusher plate 12 to move back to the original position, and at the same time, the stopper 14 is in close contact with the discharge port 15 to block The outlet 15 is dead, and then the filtering work is performed, and the cycle is in turn.

Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, it is still for those skilled in the art. The technical solutions described in the foregoing embodiments can be modified, or some of the technical features can be equivalently replaced. Any modification, equivalent replacement, improvement, etc., made within the spirit and principle of the present invention shall be included in Within the protection scope of the present invention.

Claims

A pre-filtering device for oily waste liquid in ship production, comprising a treatment tank (1), characterized in that: the top end of the treatment tank is connected with a feed pipe (101), and the bottom end of the treatment tank is connected with an outlet A material pipe (102), a mounting frame (2) is fixed in the middle of the inside of the processing box, a screen (3) is fixed on the mounting frame, and a stirring mechanism (4) is provided on the upper side of the screen, so A mounting box (5) is welded in the middle of the outer side of the processing box, the inner bottom end of the mounting box is fixed with a first servo motor (6) by bolts, and the output shaft end of the first servo motor is keyed with a first A pulley (7), both sides of the first pulley are connected to a second pulley (8) through a conveyor belt, the second pulley key is connected with a screw rod (9), and one end of the screw rod away from the second pulley A mounting block (10) is rotatably connected with a bearing, and the mounting block is fixed on the inner wall of the processing box;

A transmission nut (11) is connected to the screw for threaded transmission. The transmission nut is inlaid on a pusher plate (12). The lower side of the pusher plate is in close contact with the screen. The upper end of the pusher plate A connecting rod (13) is welded on both sides, and a stopper (14) is welded on the end of the connecting rod away from the pusher plate. The stopper is in close contact with a discharge port (15), and the exit The material opening is arranged on the side wall of the processing box, and a recovery box (16) is arranged on the lower side of the discharge opening, and the recovery box is located on one side of the processing box.
The device for pre-filtering oily waste liquid in ship production according to claim 1, characterized in that: the stirring mechanism comprises a second servo motor (401), and the second servo motor is fixed to the installation box by bolts The end of the output shaft of the second servo motor is fixed with a rotating shaft (403) through a coupling (402). The rotating shaft penetrates the processing box and is rotatably connected with the side wall of the processing box. The rotating shaft is welded There is a stirring blade (404), and the stirring blade is located at the inner upper end of the processing box.
The device for pre-filtering oily waste liquid in ship production according to claim 1, characterized in that: a protective cover (405) is provided on the outside of the second servo motor, and the protective cover is fixed to the installation by bolts. The top of the box.
A pre-filtering device for oily waste liquid in ship production according to claim 1, characterized in that: a rib (17) is welded between the bottom end of the installation box and the bottom end side wall of the processing box.
A pre-filtering device for oily waste liquid in ship production according to claim 1, characterized in that: a sliding material plate (18) is provided on the lower side of the discharge port, and the sliding material plate is fixed by bolts On the side wall of the processing box, a baffle plate (19) is provided on both sides of the sliding material plate, and the lower side of the sliding material plate is located in the recovery box.
A pre-filtering device for oily waste liquid in ship production according to claim 5, characterized in that: both sides of the lower end of the pushing plate are provided with sliding blocks (20), and the sliding blocks are in the sliding groove. (21) Internal sliding, the sliding groove is arranged on the mounting frame.
A pre-filtering device for oily waste liquid in ship production according to claim 1, characterized in that: a sealing ring (22) is arranged around the outer periphery of the discharge port, and the sealing ring is pasted on the processing box. On the outer wall.
The pre-filtering device for oily waste liquid in ship production according to claim 1, characterized in that: the four corners of the lower end of the processing box are all welded with support legs (23), and the bottom ends of the support legs are all welded. A stainless steel base (24) is welded, and the four corners of the lower end of the recovery box are all fixed with self-locking universal wheels (25) by bolts.