CN215876356U - Prevent hardened center drive mud scraper of mud - Google Patents

Abstract

The utility model belongs to the technical field of mud scrapers, and particularly relates to a central transmission mud scraper for preventing sludge from hardening, which comprises a sedimentation tank with an inclined inner bottom surface, a mud collecting groove arranged on the inner bottom surface of the sedimentation tank, a working bridge erected at the top end of the sedimentation tank, a central driving assembly, a rack assembly, a mud scraping assembly, a main driving pipe, a main air pipe and an annular air pipe, wherein the central driving assembly is arranged on the rack assembly; the main driving pipe is arranged at the center of the sedimentation tank along the vertical direction; according to the center-drive mud scraper, the arranged main air pipe and the annular air pipe are utilized, gas is introduced, so that mud in the mud collection groove is always in a loose state, mud is prevented from being hardened, the mud in the mud collection groove can be easily scraped by matching with a small scraper, the mud automatically falls off, the treatment is more convenient and efficient, and meanwhile, the accident of equipment overload is avoided; the design of double-deck mud scraper combines the elastic support subassembly, can improve the structural strength of mud scraper, has guaranteed the reliability of mud scraper, has prolonged the life of equipment.

Description

Prevent hardened center drive mud scraper of mud

Technical Field

The utility model belongs to the technical field of mud scrapers, and particularly relates to a central transmission mud scraper capable of preventing mud from hardening.

Background

A mud scraper is a machine for cleaning mud from a river channel, is used in a circular sedimentation tank with larger diameter in municipal sewage treatment plants, water supply plants and industrial wastewater treatment, and is used for removing the mud settled at the bottom of the tank and skimming scum on the surface of the tank.

The mud scraper mainly comprises a peripheral transmission mud scraper and a central transmission concentration mud scraper, wherein the central transmission concentration mud scraper can further separate free moisture in the sludge in the concentration tank so as to reduce the volume of the sludge, improve the concentration of the sludge and discharge the concentrated sludge out of the tank.

When the traditional center transmission mud scraper is used, after the mud scraper has long dead time, bottom sludge is easy to harden, and the main shaft is easy to overload during subsequent operation, so that the equipment is damaged by overlarge locked-rotor current.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides the center drive mud scraper for preventing the mud from hardening, which has the characteristics of convenient use and high treatment efficiency.

In order to achieve the purpose, the utility model provides the following technical scheme: a central transmission mud scraper for preventing sludge from hardening comprises a sedimentation tank with an inclined inner bottom surface, a mud collecting groove arranged on the inner bottom surface of the sedimentation tank, a working bridge erected at the top end of the sedimentation tank, a central driving assembly, a rack assembly, a mud scraping assembly, a main driving pipe, a main air pipe and an annular air pipe;

the main driving pipe is arranged at the center of the sedimentation tank along the vertical direction and is driven to rotate by a central driving component arranged on the working bridge;

the rack assembly is fixed on the main driving pipe and rotates along with the main driving pipe;

the mud scraping assembly comprises mud scraping arms, mud scraping plates and small scraping plates, the mud scraping arms are fixed at the bottom end of the rack assembly, the bottom surface of each mud scraping arm is provided with two symmetrically distributed mud scraping plates, elastic supporting assemblies are uniformly distributed between the two mud scraping plates and the mud scraping arms, and the small scraping plates are fixed at the bottom end of the main driving pipe and are positioned in the mud collecting groove;

the main air pipe is installed thoroughly in the main drive pipe, just stretch out the bottom of main air pipe the main drive pipe stretches into the mud collection inslot, the ring air pipe communicate in the bottom of main air pipe the equidistant multiunit exhaust hole of having seted up on the ring air pipe, just the direction in exhaust hole is directional the inner wall in mud collection groove.

As a preferable technical scheme of the utility model, the exhaust holes are provided with two groups which are symmetrically distributed, the exhaust holes are obliquely and downwards formed, and the inclination angle of the exhaust holes is 45 degrees.

As a preferable technical solution of the present invention, the central driving assembly includes a reduction motor and a gear reducer, and the reduction motor drives the main driving pipe to rotate through the gear reducer.

As a preferred technical scheme of the utility model, the rack assembly comprises an upper grid bar, a lower grid bar and a connecting rod, one end of each of the upper grid bar and the lower grid bar is fixed on the main driving pipe, and the mud scraping arm is fixed on the lower grid bar; the upper grid bars are horizontally arranged, the lower grid bars are obliquely arranged, the inclination angle of the lower grid bars is consistent with that of the inner bottom surface of the sedimentation tank, a plurality of reinforcing rib plates are connected between the upper grid bars and the lower grid bars, one end of each connecting rod is connected with the main driving pipe, and the other end of each connecting rod is connected with the upper grid bars.

As a preferred technical scheme of the utility model, a plurality of stirring rods are further fixed on the upper grid bars and the lower grid bars; the bottom end of the main driving pipe is connected with a main shaft support.

As a preferred technical scheme of the utility model, the elastic support assembly comprises a telescopic column, a telescopic spring and a connecting plate, wherein one end of the telescopic column is hinged with the mud scraping arm, the other end of the telescopic column is hinged with the connecting plate, two ends of the telescopic column are both fixed with limit rings, and the telescopic spring is sleeved on the telescopic column and is positioned between the two limit rings; the bottom surface of the connecting plate is fixed with a positioning column, the outer surface of the mud scraper is fixed with a supporting seat, and a positioning through hole for the positioning column to be embedded is formed in the supporting seat.

Compared with the prior art, the utility model has the beneficial effects that: according to the center-drive mud scraper, the arranged main air pipe and the annular air pipe are utilized, gas is introduced, so that mud in the mud collection groove is always in a loose state, mud is prevented from being hardened, the mud in the mud collection groove can be easily scraped by matching with a small scraper, the mud automatically falls off, the treatment is more convenient and efficient, and meanwhile, the accident of equipment overload is avoided; the design of double-deck mud scraper combines the elastic support subassembly, can improve the structural strength of mud scraper, has guaranteed the reliability of mud scraper, has prolonged the life of equipment.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

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

FIG. 2 is a schematic top view of the annular air tube of the present invention;

FIG. 3 is a schematic cross-sectional view of the circular air tube of the present invention;

FIG. 4 is a schematic side view of the axle of the mud scraper in the present invention;

FIG. 5 is an enlarged view of the resilient support assembly of FIG. 4 according to the present invention;

in the figure: 1. a sedimentation tank; 2. a sludge collection tank; 3. a working bridge; 4. a central drive assembly; 5. a rack assembly; 6. a mud scraping assembly; 7. a reduction motor; 8. a gear reducer; 9. a main drive tube; 10. upper grid bars; 11. a lower grid bar; 12. a connecting rod; 13. reinforcing rib plates; 14. a mud scraping arm; 15. a mud scraper; 16. a small scraper; 17. a main shaft support; 18. a stirring rod; 19. a main air duct; 20. an annular air tube; 21. an exhaust hole; 22. an elastic support member; 23. a telescopic column; 24. a limiting ring; 25. a tension spring; 26. a connecting plate; 27. a supporting seat; 28. a positioning column; 29. the perforation is positioned.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides the following technical solutions: a central transmission mud scraper for preventing sludge from hardening comprises a sedimentation tank 1 with an inclined inner bottom surface, a mud collecting groove 2 arranged on the inner bottom surface of the sedimentation tank 1, a working bridge 3 erected at the top end of the sedimentation tank 1, a central driving assembly 4, a rack assembly 5, a mud scraping assembly 6, a main driving pipe 9, a main air pipe 19 and an annular air pipe 20;

the main driving pipe 9 is arranged at the center of the sedimentation tank 1 along the vertical direction and is driven to rotate by a central driving component 4 arranged on the working bridge 3;

the frame component 5 is fixed on the main driving pipe 9 and rotates along with the main driving pipe 9;

the mud scraping assembly 6 comprises mud scraping arms 14, mud scraping plates 15 and small scraping plates 16, the mud scraping arms 14 are fixed at the bottom end of the rack assembly 5, the bottom surface of each mud scraping arm 14 is provided with two symmetrically distributed mud scraping plates 15, elastic supporting assemblies 22 are distributed between the two mud scraping plates 15 and the mud scraping arms 14, and the small scraping plates 16 are fixed at the bottom end of the main driving pipe 9 and are positioned in the mud collecting groove 2;

the main air pipe 19 is mounted in the main driving pipe 9 in a penetrating way, the bottom end of the main air pipe 19 extends out of the main driving pipe 9 and into the mud collecting groove 2, the annular air pipe 20 is communicated with the bottom end of the main air pipe 19, a plurality of groups of exhaust holes 21 are arranged on the annular air pipe 20 at equal intervals, the direction of the exhaust holes 21 points to the inner wall of the mud collecting groove 2, when in use, the central driving component 4 at the top is started, the main driving pipe 9 is driven by the central driving component 4 to rotate, the main driving pipe 9 drives the rack component 5 to rotate, the rack component 5 drives the mud scraping component 6 at the bottom end to rotate, the mud scraping plate 15 and the small scraping plate 16 rotate to scrape the mud in the sedimentation tank 1 and the mud collecting groove 2, so that the mud is evacuated and falls into the mud collecting groove 2 along the inclined plane in the sedimentation tank 1, and automatically falls, the mud scraping plate 15 is of a double-layer design, and combines the elastic supporting component 22, thereby greatly improving the structural strength of the mud scraping plate 15, the occurrence of deformation accidents is avoided, and the reliability of treatment is ensured; after the equipment is stopped, air is blown in through the main air pipe 19, the air enters the annular air pipe 20 through the main air pipe 19 and is sprayed out from the air exhaust holes 21 to the sludge in the sludge collection groove 2, so that the sludge is evacuated and automatically falls off, the occurrence of sludge hardening accidents is avoided, the occurrence of equipment overload accidents is avoided, and the service life of the equipment is prolonged.

Specifically, as shown in fig. 1, fig. 2 and fig. 3, in this embodiment, two sets of symmetrically distributed exhaust holes 21 are formed, and the exhaust holes 21 are formed obliquely downward at an inclination angle of 45 degrees, so as to ensure that gas is reliably sprayed to the sludge in the sludge collection tank 2, so that the sludge is automatically dispersed and dropped, and meanwhile, the gas also generates an acting force on the sludge, which is helpful for the dropping of the sludge.

Specifically, according to fig. 1, in this embodiment, the central driving assembly 4 includes a reduction motor 7 and a gear reducer 8, and the reduction motor 7 drives the main driving pipe 9 to rotate through the gear reducer 8, so as to scrape mud.

Specifically, according to fig. 1, in the present embodiment, the frame assembly 5 includes an upper grid 10, a lower grid 11 and a connecting rod 12, one end of each of the upper grid 10 and the lower grid 11 is fixed on the main driving pipe 9, and the mud scraping arm 14 is fixed on the lower grid 11; go up bars 10 and be horizontal installation, lower bars 11 is the slope installation, and the inclination of lower bars 11 is unanimous with the inclination of bottom surface in the sedimentation tank 1, guarantee to reliably strike off the mud in the sedimentation tank 1, be connected with many deep floor 13 between last bars 10 and lower bars 11, the stability of being connected of bars 10 and lower bars 11 is improved, the one end and the main drive tube 9 of connecting rod 12 are connected, the other end is connected with last bars 10, further improve the stability of last bars 10 and lower bars 11, guarantee to scrape the reliability and the security of mud, avoid the occurence of failure of last bars 10 and lower bars 11 deformation.

Specifically, as shown in fig. 1, in this embodiment, a plurality of stirring rods 18 are further fixed on the upper grid 10 and the lower grid 11 to help loosen the sludge; the bottom end of the main driving pipe 9 is connected with a main shaft support 17, so that the stability of the main driving pipe 9 is ensured, and the main driving pipe 9 cannot move when rotating.

Specifically, as shown in fig. 1, 4 and 5, in this embodiment, the elastic support assembly 22 includes a telescopic column 23, a telescopic spring 25 and a connecting plate 26, one end of the telescopic column 23 is hinged to the mud scraping arm 14, the other end of the telescopic column 23 is hinged to the connecting plate 26, two ends of the telescopic column 23 are both fixed with limit rings 24, and the telescopic spring 25 is sleeved on the telescopic column 23 and located between the two limit rings 24; be fixed with reference column 28 in the bottom surface of connecting plate 26, external fixation at mud scraper 15 has supporting seat 27, and set up the location perforation 29 that supplies reference column 28 embedding in supporting seat 27, flexible post 23 is two sections hollow cylinder components and cup joints and constitutes, under expanding spring 25's effect, make flexible post 23 have elasticity, it has the effect of outside support mud scraper 15, no matter mud scraper 15 clockwise turning or anticlockwise turning, the mud scraper 15 of contact mud earlier all can keep higher intensity under the elastic support of elastic support subassembly 22, avoid the emergence of deformation accident, the reliability of sludge treatment has been improved, the life of equipment has been prolonged.

The working principle and the using process of the utility model are as follows: when the mud scraper is used, the central driving component 4 at the top is started, the central driving component 4 is used for driving the main driving pipe 9 to rotate, the main driving pipe 9 drives the rack component 5 to rotate, the rack component 5 drives the mud scraping component 6 at the bottom end to rotate, the mud scraping plate 15 and the small scraping plate 16 rotate to scrape the mud in the sedimentation tank 1 and the mud collecting groove 2, so that the mud is dispersed and falls into the mud collecting groove 2 along the inclined plane in the sedimentation tank 1 and automatically falls;

the mud scraper 15 is designed in a double-layer mode, and the elastic supporting assembly 22 is combined, so that the structural strength of the mud scraper 15 can be greatly improved, the occurrence of deformation accidents is avoided, and the reliability of treatment is ensured; after the equipment is stopped, air is blown in through the main air pipe 19, the air enters the annular air pipe 20 through the main air pipe 19 and is sprayed out from the air exhaust holes 21 to the sludge in the sludge collection groove 2, so that the sludge is evacuated and automatically falls off, the occurrence of sludge hardening accidents is avoided, the occurrence of equipment overload accidents is avoided, and the service life of the equipment is prolonged.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides a prevent mud scraper of central transmission that mud hardens, includes that interior bottom surface is sedimentation tank (1) of slope form the interior bottom surface of sedimentation tank (1) is equipped with sludge collection groove (2) the top of sedimentation tank (1) has erect working bridge (3), its characterized in that: the mud scraper is characterized by also comprising a central driving assembly (4), a rack assembly (5), a mud scraping assembly (6), a main driving pipe (9), a main air pipe (19) and an annular air pipe (20);

the main driving pipe (9) is arranged at the center of the sedimentation tank (1) along the vertical direction and is driven to rotate by a central driving component (4) arranged on the working bridge (3);

the rack assembly (5) is fixed on the main driving pipe (9) and rotates along with the main driving pipe (9);

the mud scraping assembly (6) comprises mud scraping arms (14), mud scraping plates (15) and small scraping plates (16), the mud scraping arms (14) are fixed at the bottom end of the rack assembly (5), the bottom surface of each mud scraping arm (14) is provided with two symmetrically-distributed mud scraping plates (15), elastic supporting assemblies (22) are uniformly distributed between the two mud scraping plates (15) and the mud scraping arms (14), and the small scraping plates (16) are fixed at the bottom end of the main driving pipe (9) and are positioned in the mud collecting groove (2);

main air pipe (19) install thoroughly in main driving pipe (9), just stretch out the bottom of main air pipe (19) main driving pipe (9) and stretch into in mud collection groove (2), annular air pipe (20) communicate in the bottom of main air pipe (19) equidistant multiunit exhaust hole (21) that is equipped with on annular air pipe (20), just the direction of exhaust hole (21) is directional the inner wall in mud collection groove (2).

2. The central transmission mud scraper for preventing the mud hardening according to claim 1, characterized in that: two groups of exhaust holes (21) are symmetrically distributed, the exhaust holes (21) are obliquely and downwards opened, and the inclination angle of the exhaust holes is 45 degrees.

3. The central transmission mud scraper for preventing the mud hardening according to claim 1, characterized in that: the central driving assembly (4) comprises a speed reducing motor (7) and a gear speed reducer (8), and the speed reducing motor (7) drives the main driving pipe (9) to rotate through the gear speed reducer (8).

4. The central transmission mud scraper for preventing the mud hardening according to claim 1, characterized in that: the rack assembly (5) comprises an upper grid bar (10), a lower grid bar (11) and a connecting rod (12), one end of each of the upper grid bar (10) and the lower grid bar (11) is fixed on the main driving pipe (9), and the mud scraping arm (14) is fixed on the lower grid bar (11); the upper grid bars (10) are horizontally arranged, the lower grid bars (11) are obliquely arranged, the inclination angles of the lower grid bars (11) are consistent with that of the inner bottom surface of the sedimentation tank (1), a plurality of reinforcing rib plates (13) are connected between the upper grid bars (10) and the lower grid bars (11), one end of each connecting rod (12) is connected with the main driving pipe (9), and the other end of each connecting rod is connected with the upper grid bars (10).

5. The central transmission mud scraper for preventing the mud hardening according to claim 4, wherein: a plurality of stirring rods (18) are further fixed on the upper grid bars (10) and the lower grid bars (11); the bottom end of the main driving pipe (9) is connected with a main shaft support (17).

6. The central transmission mud scraper for preventing the mud hardening according to claim 1, characterized in that: the elastic support assembly (22) comprises a telescopic column (23), a telescopic spring (25) and a connecting plate (26), one end of the telescopic column (23) is hinged with the mud scraping arm (14), the other end of the telescopic column is hinged with the connecting plate (26), two ends of the telescopic column (23) are respectively fixed with a limiting ring (24), and the telescopic spring (25) is sleeved on the telescopic column (23) and is positioned between the two limiting rings (24); a positioning column (28) is fixed on the bottom surface of the connecting plate (26), a supporting seat (27) is fixed on the outer surface of the mud scraper (15), and a positioning through hole (29) for the positioning column (28) to be embedded in is formed in the supporting seat (27).

Images