Scraping device for sludge on inner wall of horizontal fermentation tank

Abstract

The invention provides a horizontal fermentation tank inner wall sludge scraping device which comprises a tank body, a sliding annular rail is arranged on the tank body, a scraping device body is arranged on the annular rail, the scraping device body comprises a frame and a sliding block, the sliding block rotates along the annular rail, a plurality of rotating scraping pieces are arranged on the frame, and the annular rail comprises a bottom rail capable of ascending and descending. An arc-shaped scraper is arranged at the bottom of the bottom rail. The whole structure is simple, a scaffold does not need to be erected in the tank body, the whole device is high in automation degree, sludge can be automatically scraped and cleaned, and the phenomena that a worker scrapes the sludge on the scaffold, time and labor are wasted, and certain potential safety hazards exist are avoided. Meanwhile, the phenomenon that time and labor are wasted when workers need to transport the sludge in a long tank body is avoided. Meanwhile, the phenomena that the flushing cost is increased and time and labor are consumed due to the fact that a high-pressure water gun needs to install and transport flushing equipment and a large amount of water for flushing are avoided.

Description

Technical Field

[0001] This invention relates to the field of fecal treatment, and in particular to a device for scraping sludge off the inner wall of a horizontal fermenter. Background Technology

[0002] Manure treatment often employs horizontal fermentation tanks for dry anaerobic fermentation. However, after long-term operation, a thick layer of sludge gradually forms on the inner walls of these dry anaerobic fermentation tanks, necessitating sludge scraping. There are two main existing methods for handling sludge. One is manual scraping: the manhole of the tank is opened, and workers enter the tank through the manhole to scrape away the sludge from the inner wall using scrapers or shovels. However, this method has significant drawbacks. Not only is it time-consuming, usually more than a week, but scaffolding also needs to be erected inside the tank for workers to scrape the sludge, which is time-consuming and labor-intensive. Workers also need to enter the tank to operate, which may pose certain safety hazards, such as oxygen deficiency and harmful gases. Furthermore, workers need to transport the sludge inside the long tank, which is very difficult to do manually, increasing the workload and difficulty. Another method is high-pressure water gun rinsing: This method still requires manual operation of the high-pressure water gun inside the tank for a long time, but it consumes a lot of water. The installation and transportation of the rinsing equipment, coupled with the large amount of water used, results in high costs. The wastewater after rinsing is difficult to collect, and the collected wastewater is also difficult to treat. Summary of the Invention

[0003] This invention provides a device for scraping sludge from the inner wall of a horizontal fermenter, which solves the problems of long time required for manual scraping, the need to erect scaffolding inside the tank, the time and labor costs for workers, the safety hazards, the difficulty in transporting the scraped sludge, and the large amount of water consumed by high-pressure washing, which makes wastewater difficult to treat.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a horizontal fermentation tank inner wall sludge scraping device, including a tank body, a sliding annular track on the tank body, a scraping device on the annular track, the scraping device including a frame and a slider, the slider rotating along the annular track, a plurality of rotating scrapers on the frame, the annular track including a bottom rail that can be raised and lowered, and an arc-shaped scraper at the bottom of the bottom rail.

[0005] In a preferred embodiment, the circular track includes two side rails, a top rail, and a bottom rail. A support frame is provided in the middle of the circular track, and a lifting device is provided between the support frame and the bottom rail. In the preferred embodiment, the side rail is provided with a chute, and an arc-shaped toothed ring is provided on one side of the chute. The top rail and bottom rail have the same structure as the side rail, and the side rail is connected to the transport device.

[0006] In a preferred embodiment, the lifting device includes a second motor and a protrusion. The second motor is equipped with a lead screw, which is threadedly connected to the protrusion. The support is equipped with a vertical rail, and the protrusion slides against the vertical rail. The bottom rail is equipped with multiple connecting rods, which are connected to the protrusion.

[0007] In a preferred embodiment, the slider is provided with a frame, the frame is provided with a sliding telescopic slide bar, the scraper includes a shaft, the shaft is rotatably connected to the frame, a side shaft is provided on one side of the scraper, the telescopic slide bar is provided with multiple limiting grooves, and the side shaft abuts against the limiting grooves.

[0008] In a preferred embodiment, the slider is provided with a mounting groove, and the top of the slider is provided with a driving mechanism. The driving mechanism includes a first motor, and the first motor is provided with a gear that meshes with an arc-shaped gear ring.

[0009] In a preferred embodiment, the frame includes a frame body with a bottom groove and multiple rotating holes. A telescopic slide bar abuts against the bottom groove and is equipped with a cylinder. The cylinder is rotatably connected to the telescopic slide bar via a rotating seat, and the other end of the cylinder is rotatably connected to the frame via a second rotating seat.

[0010] In the preferred embodiment, a side groove is provided on one side of the side rail, and multiple side rods are provided on the side groove. Horizontal grooves are provided on both sides of the tank body, and a manhole is provided at the bottom of the tank body.

[0011] In the preferred embodiment, a transport device is provided on both sides of the tank body. The transport device includes a U-shaped bar and a moving block. The U-shaped bar abuts against the side groove. Rotary drums are provided at both ends of the U-shaped bar. A third motor is provided on one of the rotating drums. A belt is provided between the two rotating drums. A guide rail is provided on the belt.

[0012] In the preferred embodiment, the movable block has a U-shaped structure, slides against the side rail, is connected to the side rail, and has a guide rail groove, with the guide rail abutting against the guide rail groove.

[0013] The beneficial effects of the present invention are as follows: when it is necessary to scrape the sludge on the inner wall of the tank, the cylinder of the scraping device is driven to make multiple scrapers rotate, so that the scraping device opens and closes, so that one end of the blade of the multiple scrapers abuts against the inner wall of the tank, and the drive mechanism is driven to make the slider rotate along the annular track, so that the frame rotates along the inner wall of the tank to scrape, so that the multiple scrapers scrape along the inner wall of the tank.

[0014] Drive the conveyor to move the belt, so that the scraping device reciprocates, so that the conveyor can move laterally, so that the scraping device can reciprocate along the horizontal axis of the tank.

[0015] When the sludge scraped from the inner wall of the tank falls to the bottom of the inner wall, the second motor of the lifting device is driven to make the protrusion rise and fall along the vertical rail, and the bottom rail rise and fall, so that the arc-shaped scraper of the bottom rail abuts against the tank. Similarly, the transport device is driven to make the bottom rail move back and forth, so that the bottom rail carries the sludge scraped from the tank to one end of the manhole, so that the sludge falls from the manhole. The workers only need to collect the waste sludge at the bottom of the manhole.

[0016] The overall structure is simple, eliminating the need for scaffolding inside the tank. The device is highly automated, automatically scraping and cleaning sludge, avoiding the time-consuming, labor-intensive, and safety-hazardous task of workers scraping sludge on scaffolding. It also eliminates the need for workers to transport sludge within long tanks, saving time and effort. Furthermore, it avoids the need for high-pressure water jet cleaning, which requires the installation and transportation of cleaning equipment and large quantities of water, increasing cleaning costs and wasting time and effort.

[0017] The circular track consists of multiple individual tracks that can be assembled quickly and are easy to install. It can be assembled through a small manhole. The overall structure of the circular track is ingenious. The bottom rail of the circular track can be retracted to become part of the circular track, and the bottom rail can be extended to serve as a structure for sweeping away scraped silt. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a half-sectional view of the overall structure of the present invention; Figure 2 This is an axonometric view of the overall structure of the present invention without the tank body; Figure 3 This is an axonometric view of a partial structure of the present invention; Figure 4 This is an axial view of the scraping device of the present invention; Figure 5 This is an exploded view of the scraping device of the present invention; Figure 6 This is an exploded view of the scraping device of the present invention from another perspective; Figure 7 This is an axonometric view of the side rail of the present invention; Figure 8 This is an axonometric view of the framework of the present invention; Figure 9 This is an axial view of the scraper blade of the present invention; Figure 10 This is an axonometric view of the transport device of the present invention; Figure 11 This is an exploded view of a partial structure of the present invention; Figure 12This is an axonometric view of the bottom rail of the present invention; Figure 13 This is an exploded view of the lifting device of the present invention; In the diagram: Tank 1; Horizontal groove 101; Manhole 102; Transport device 2; U-shaped bar 201; Rotary drum 202; Belt 203; Moving block 204; Guide rail groove 2041; Guide rail 205; Circular track 3; Side rail 301; Slide groove 3011; Arc-shaped toothed ring 3012; Side groove 3013; Side rod 3014; Top rail 302; Bottom rail 303; Connecting rod 3031; Arc-shaped scraper 3032; Scraper 4. Remover; 5. Slider; 501. Mounting groove; 6. Drive mechanism; 7. Telescopic slide bar; 701. Limiting groove; 702. Rotating seat; 8. Frame; 801. Bottom groove; 802. Rotating hole; 803. Second rotating seat; 804. Scraper; 9. Shaft; 901. Side shaft; 902. Cylinder; 10. Bracket; 11. Lifting device; 12. Protrusion; 1201. Lead screw; 1202. Second motor; 1203. Vertical rail; 1204. Detailed Implementation

[0019] Example 1: like Figure 1-13 A horizontal fermentation tank inner wall sludge scraping device includes a tank body 1, a sliding annular track 3 on the tank body 1, and a scraping device 4 on the annular track 3. The scraping device 4 includes a frame 8 and a slider 5, the slider 5 rotating along the annular track 3. The frame 8 has multiple rotating scrapers 9. The annular track 3 includes a liftable bottom rail 303, and the bottom of the bottom rail 303 has an arc-shaped scraper 3032. With this structure, the annular track 3 is transported into the tank body 1 for assembly. The manhole 102 of the tank body 1 is opened, and two side rails 301, one top rail 302, and one bottom rail 303 of the annular track 3 are transported into the tank body 1, so that multiple individual tracks form an annular structure. The arc-shaped structure of the individual track components facilitates transport into the tank body 1 for assembly through the smaller manhole 102. Adjacent individual tracks are connected by bolts. The two side rails 301 are connected to a support 11. The two side rails are connected to the moving block 204 of the transport device 2.

[0020] When it is necessary to scrape off the sludge on the inner wall of the tank 1, the cylinder 10 of the scraping device 4 is driven to make the multiple scraper blades 9 rotate, so that the scraping device 4 opens and closes, so that one end of the blade of the multiple scraper blades 9 abuts against the inner wall of the tank 1, and the drive mechanism 6 is driven to make the slider 5 rotate along the annular track 3, so that the frame 8 rotates along the inner wall of the tank 1 to scrape, so that the multiple scraper blades 9 scrape along the inner wall of the tank 1.

[0021] Drive the conveyor 2 to move the belt 203, so that the scraping device 4 reciprocates, so that the conveyor 2 can move laterally, so that the scraping device 4 can reciprocate along the horizontal axis of the tank 1.

[0022] When the sludge scraped from the inner wall of tank 1 falls to the bottom of the inner wall of tank 1, the second motor 1203 of the lifting device 12 is driven to make the protrusion 1201 rise and fall along the vertical rail 1204, so that the bottom rail 303 rises and falls, so that the arc-shaped scraper 3032 of the bottom rail 303 abuts against the tank 1. Similarly, the transport device 2 is driven to make the bottom rail 303 move back and forth, so that the bottom rail 303 carries the sludge scraped from tank 1 to one end of manhole 102, so that the sludge falls from the manhole 102. The staff only need to collect the waste sludge at the bottom of the manhole 102.

[0023] The overall structure is simple, eliminating the need for scaffolding inside tank 1. The device boasts a high degree of automation, automatically scraping and cleaning sludge, thus avoiding the time-consuming, labor-intensive, and potentially safety-hazardous task of workers scraping sludge on scaffolding. It also eliminates the need for workers to transport sludge within the long tank 1, saving time and effort. Furthermore, it avoids the need for high-pressure water jet cleaning, which requires the installation and transportation of cleaning equipment and large quantities of water, increasing cleaning costs and wasting time and effort.

[0024] The circular track 3 comprises multiple individual tracks, which can be assembled quickly and are easy and quick to install. It can be assembled through a small manhole 102. The overall structure of the circular track 3 is ingenious. The bottom rail 303 of the circular track 3 can be retracted to become part of the circular track 3, and the bottom rail 303 can be extended to serve as a structure for sweeping away scraped silt.

[0025] In a preferred embodiment, the annular track 3 includes two side rails 301, a top rail 302, and a bottom rail 303. A support 11 is provided in the middle of the annular track 3, and a lifting device 12 is provided between the support 11 and the bottom rail 303. With this structure, the lifting device 12 is installed on the support 11.

[0026] In a preferred embodiment, the side rail 301 is provided with a groove 3011, and an arc-shaped toothed ring 3012 is provided on one side of the groove 3011. The top rail 302 and bottom rail 303 have the same structure as the side rail 301. The side rail 301 is connected to the transport device 2. With this structure, the annular track 3 is transported into the tank 1 for assembly. The manhole 102 of the tank 1 is opened, and the two side rails 301, one top rail 302, and one bottom rail 303 of the annular track 3 are transported into the tank 1 so that multiple individual tracks form a ring. The arc-shaped structure of the individual track assembly facilitates transportation into the tank 1 for assembly through the smaller manhole 102. Adjacent individual tracks are connected by bolts, and the two side rails 301 are connected to the bracket 11. The two side rails are connected to the moving block 204 of the transport device 2.

[0027] In a preferred embodiment, the lifting device 12 includes a second motor 1203 and a protrusion 1201. The second motor 1203 is provided with a lead screw 1202, which is threadedly connected to the protrusion 1201. The bracket 11 is provided with a vertical rail 1204, and the protrusion 1201 slides against the vertical rail 1204. The bottom rail 303 is provided with a plurality of connecting rods 3031, which are connected to the protrusion 1201. With this structure, when the sludge scraped from the inner wall of the tank 1 falls to the bottom of the inner wall of the tank 1, the second motor 1203 of the lifting device 12 is driven to make the protrusion 1201 rise and fall along the vertical rail 1204, so that the bottom rail 303 rises and falls, so that the arc-shaped scraper 3032 of the bottom rail 303 abuts against the tank 1. Similarly, the transport device 2 is driven to make the bottom rail 303 move back and forth, so that the bottom rail 303 carries the sludge scraped from the tank 1 to one end of the manhole 102, so that the sludge falls from the manhole 102. The staff only need to collect the waste sludge at the bottom of the manhole 102.

[0028] In a preferred embodiment, the slider 5 is provided with a frame 8, and the frame 8 is provided with a sliding telescopic strip 7. The scraper 9 includes a shaft 901, which is rotatably connected to the frame 8. A side shaft 902 is provided on one side of the scraper 9. The telescopic strip 7 is provided with multiple limiting grooves 701, and the side shaft 902 abuts against the limiting grooves 701. With this structure, the driving cylinder 10 is used to make the telescopic strip 7 slide along the bottom groove 802, so that the side shafts 902 of the multiple scrapers 9 slide in the limiting grooves 701, so that the multiple scrapers 9 rotate, and so that the multiple scrapers 9 can abut against the inner wall of the tank 1.

[0029] In a preferred embodiment, the slider 5 is provided with a mounting groove 501, and a drive mechanism 6 is provided on the top of the slider 5. The drive mechanism 6 includes a first motor, which is provided with a gear that meshes with an arc-shaped gear ring 3012. With this structure, the first motor is driven to rotate the gear, thereby causing the slider 5 to slide along the annular track 3, and causing the scraping device 4 to slide along the annular track 3.

[0030] In a preferred embodiment, the frame 8 includes a frame body 801, which has a bottom groove 802 and multiple rotating holes 803. A telescopic slide bar 7 abuts against the bottom groove 802. A cylinder 10 is mounted on the telescopic slide bar 7, which is rotatably connected to the telescopic slide bar 7 via a rotating seat 702. The other end of the cylinder 10 is rotatably connected to the frame 8 via a second rotating seat 804. With this structure, driving the cylinder 10 causes the telescopic slide bar 7 to slide along the bottom groove 802, causing the side shafts 902 of the multiple scrapers 9 to slide in the limiting grooves 701, thus rotating the multiple scrapers 9 so that they can abut against the inner wall of the tank body 1. One end of the cylinder 10 is rotatably connected to the telescopic slide bar 7, and the other end is rotatably connected to the frame 8.

[0031] In the preferred embodiment, a side groove 3013 is provided on one side of the side rail 301, and multiple side rods 3014 are provided on the side groove 3013. Horizontal grooves 101 are provided on both sides of the tank body 1, and a manhole 102 is provided at the bottom of the tank body 1. With this structure, the driving transport device 2 is used to reciprocate the bottom rail 303, which carries the sludge scraped from the tank body 1 to one end of the manhole 102, allowing the sludge to fall through. Workers only need to collect the waste sludge at the bottom of the manhole 102. Workers enter the tank body 1 through the manhole 102.

[0032] In a preferred embodiment, a transport device 2 is provided on both sides of the tank body 1. The transport device 2 includes a U-shaped bar 201 and a moving block 204. The U-shaped bar 201 abuts against the side groove 3013. Rotary drums 202 are provided at both ends of the U-shaped bar 201. A third motor is provided on one of the rotating drums 202. A belt 203 is provided between the two rotating drums 202. A guide rail 205 is provided on the belt 203. With this structure, the third motor is driven to rotate the rotating drum 202, which in turn moves the belt 203, causing the moving block 204 to reciprocate, and causing the scraping device 4 to reciprocate.

[0033] In the preferred embodiment, the movable block 204 has a U-shaped structure, slides against the side rail 301, is connected to the side rail 301, and has a guide rail groove 2041, with the guide rail 205 abutting against the guide rail groove 2041.

[0034] The above embodiments are merely preferred technical solutions of the present invention and should not be considered as limitations on the present invention. The scope of protection of the present invention should be limited to the technical solutions described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A device for scraping sludge from the inner wall of a horizontal fermenter, characterized in that: It includes a tank body (1), a sliding annular track (3) on the tank body (1), a scraping device (4) on the annular track (3), the scraping device (4) includes a frame (8) and a slider (5), the slider (5) rotates along the annular track (3), the frame (8) is provided with multiple rotating scrapers (9), the annular track (3) includes a bottom rail (303) that can be raised and lowered, and an arc-shaped scraper (3032) is provided at the bottom of the bottom rail (303).

2. The sludge scraping device for the inner wall of a horizontal fermenter according to claim 1, characterized in that: The circular track (3) includes two side rails (301), a top rail (302) and a bottom rail (303). A support (11) is provided in the middle of the circular track (3), and a lifting device (12) is provided between the support (11) and the bottom rail (303).

3. The sludge scraping device for the inner wall of a horizontal fermenter according to claim 2, characterized in that: The side rail (301) is provided with a groove (3011), and an arc-shaped toothed ring (3012) is provided on one side of the groove (3011). The top rail (302) and bottom rail (303) have the same structure as the side rail (301). The side rail (301) is connected to the transport device (2).

4. The sludge scraping device for the inner wall of a horizontal fermenter according to claim 2, characterized in that: The lifting device (12) includes a second motor (1203) and a protrusion (1201). The second motor (1203) is provided with a lead screw (1202), which is threadedly connected to the protrusion (1201). The bracket (11) is provided with a vertical rail (1204), and the protrusion (1201) slides against the vertical rail (1204). The bottom rail (303) is provided with multiple connecting rods (3031), which are connected to the protrusion (1201).

5. The sludge scraping device for the inner wall of a horizontal fermenter according to claim 1, characterized in that: The slider (5) is provided with a frame (8), the frame (8) is provided with a sliding telescopic slide bar (7), the scraper (9) includes a shaft (901), the shaft (901) is rotatably connected to the frame (8), the scraper (9) is provided with a side shaft (902) on one side, the telescopic slide bar (7) is provided with multiple limiting grooves (701), and the side shaft (902) abuts against the limiting grooves (701).

6. The sludge scraping device for the inner wall of a horizontal fermenter according to claim 5, characterized in that: The slider (5) is provided with a mounting groove (501), and the top of the slider (5) is provided with a drive mechanism (6). The drive mechanism (6) includes a first motor, and the first motor is provided with a gear, which meshes with an arc-shaped gear ring (3012).

7. The sludge scraping device for the inner wall of a horizontal fermenter according to claim 5, characterized in that: The frame (8) includes a frame body (801), which has a bottom groove (802) and multiple rotating holes (803). The telescopic slide (7) abuts against the bottom groove (802), and the telescopic slide (7) is equipped with a cylinder (10). The cylinder (10) is rotatably connected to the telescopic slide (7) through a rotating seat (702), and the other end of the cylinder (10) is rotatably connected to the frame (8) through a second rotating seat (804).

8. The sludge scraping device for the inner wall of a horizontal fermenter according to claim 2, characterized in that: A side groove (3013) is provided on one side of the side rail (3013), and multiple side rods (3014) are provided on the side groove (3013). A transverse groove (101) is provided on both sides of the tank body (1), and a manhole (102) is provided at the bottom of the tank body (1).

9. The sludge scraping device for the inner wall of a horizontal fermenter according to claim 1, characterized in that: The tank body (1) is equipped with a transport device (2) on both sides. The transport device (2) includes a U-shaped bar (201) and a moving block (204). The U-shaped bar (201) abuts against the side groove (3013). The U-shaped bar (201) is equipped with a rotating drum (202) at both ends. One of the rotating drums (202) is equipped with a third motor. A belt (203) is provided between the two rotating drums (202). A guide rail (205) is provided on the belt (203).

10. The sludge scraping device for the inner wall of a horizontal fermenter according to claim 9, characterized in that: The movable block (204) has a U-shaped structure. The movable block (204) slides against the side rail (301). The movable block (204) is connected to the side rail (301). The movable block (204) is provided with a guide rail groove (2041). The guide rail (205) abuts against the guide rail groove (2041).

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