CN217895248U - Anaerobic sludge reflux device - Google Patents

Abstract

The utility model provides an anaerobism sludge reflux unit, include: the system comprises an anaerobic system, a sludge dewatering structure, a sewage pool and an anaerobic sludge concentration tank; the anaerobic system's upper left portion is connected with the back flow, and the other end of back flow is connected in anaerobic sludge thickening jar's lower terminal surface left part to install the second centrifugal pump on the back flow, anaerobic system's right sub-unit connection has the muddy water raceway, and the other end of muddy water raceway leads to in the sludge dewatering structure, and installs first centrifugal pump on the muddy water raceway, the right part lower side of sludge dewatering structure is provided with first export, and is connected with the sewage raceway under the first export, and the other end of sewage raceway leads to in the sewage pond. The utility model discloses with the sludge dewatering processing of many plays in the anaerobic system, dilute the backward flow with mud again, not only reduce outward transport landfill cost, but also can avoid anaerobic system organic matter and anaerobic fermentation bacterial to run off, make its sustainable operation, more economic environmental protection.

Description

Anaerobic sludge reflux device

Technical Field

The utility model relates to an anaerobism sludge reflux processing technology field, concretely relates to anaerobism sludge reflux unit.

Background

With the enlargement of the urban scale and the improvement of the treatment efficiency of sewage treatment plants, the output of the excess sludge is increased year by year; according to statistics, the annual output of municipal sludge in China reaches 3000 million tons, 80 percent of the municipal sludge is not properly treated, and the anaerobic digestion technology can simultaneously realize sludge reduction and energy recovery in a plurality of sludge treatment methods and is widely applied at home and abroad. However, after a large amount of sludge is accumulated in the anaerobic system in the prior art, organic matters and anaerobic fermentation strains in the anaerobic system are discharged regularly, so that the continuous operation of the anaerobic system is influenced, and the cost is high due to outward transportation and landfill.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, an anaerobic sludge reflux device is provided so as to solve the problems that organic matters and anaerobic fermentation strains in an anaerobic system are lost without delay due to the fact that sludge is accumulated in the anaerobic system in the prior art and is discharged regularly, continuous operation of anaerobism is influenced, and the cost is high due to outward transportation and landfill.

In order to achieve the above object, there is provided an anaerobic sludge recirculation apparatus including: the system comprises an anaerobic system, a sludge dewatering structure, a sewage pool and an anaerobic sludge concentration tank;

the anaerobic system's upper left portion is connected with the back flow, and the other end of back flow is connected at anaerobic sludge concentration tank's lower terminal surface left part to install the second centrifugal pump on the back flow, anaerobic system's right sub-unit connection has the muddy water raceway, and the other end of muddy water raceway accesss to in the sludge dewatering structure, and installs first centrifugal pump on the muddy water raceway, the right part below of sludge dewatering structure is provided with first export, and is connected with the sewage raceway under the first export, and the other end of sewage raceway accesss to in the sewage pond to the right-hand member of sludge dewatering structure is provided with the second export, is connected with the dry sludge raceway under the second export, and in the other end of dry sludge raceway accesss to anaerobic sludge concentration tank, installs the third centrifugal pump on the dry sludge raceway, and the lower part of third centrifugal pump is provided with the pump block, and the pump block is located anaerobic sludge concentration tank's up end.

Further, the upper portion is provided with the grid in the anaerobic system, and the bottom is provided with the second base in the anaerobic system, and mid-mounting has the second motor in the second base to the upper end of second motor is provided with the second pivot, and the left and right sides two of second pivot all is provided with multiunit second stirring rake.

Furthermore, a water filling structure is installed in the anaerobic system, an upper ring pipe is arranged on the upper portion of the water filling structure, a middle ring pipe is arranged in the middle of the water filling structure, a lower ring pipe is arranged on the lower portion of the water filling structure, multiple groups of inner spray heads are arranged on the inner ring surface of the upper ring pipe, multiple groups of outer spray heads are arranged on the outer ring surface of the upper ring pipe, the structures of the upper ring pipe, the middle ring pipe and the lower ring pipe are arranged consistently, a first purified water conveying pipe and a second purified water conveying pipe are connected among the upper ring pipe, the middle ring pipe and the lower ring pipe, a first water inlet is formed in the lower end of the first purified water conveying pipe, and a second water inlet is formed in the lower end of the second purified water conveying pipe.

Further, the upper end of anaerobism sludge thickening jar is provided with third inlet port and feed inlet, and the lower extreme of dry mud raceway is connected in feed inlet department, and the lower part of anaerobism sludge thickening jar is provided with first base to left stirring structure is installed to anaerobism sludge thickening jar inside left portion, and right stirring structure is installed to anaerobism sludge thickening jar inside right portion, and left stirring structure and right stirring structure are the bilateral symmetry structure about the center of anaerobism sludge thickening jar, and the structure setting of left stirring structure and right stirring structure is unanimous.

Furthermore, the right side stirring structure is provided with a first rotating shaft, the left and right sides of the first rotating shaft are provided with a plurality of groups of first stirring paddles, the lower part of the first rotating shaft is rotatably connected in the shaft sleeve, and a second belt pulley is installed at the lower end of the first rotating shaft.

Further, mid-mounting has first motor in the first base, and the upper end of first motor is provided with first belt pulley, and about two in the first base all establish about a set of connecting seat down to the transmission is connected with the belt between the second belt pulley of first belt pulley and left and right sides.

The beneficial effects of the utility model reside in that:

1. the utility model discloses well anaerobic system carries the mud of coming out more in toward the sludge dewatering structure through the muddy water raceway, mud carries out the wet separation futilely in the sludge dewatering structure, the sewage of isolating enters into the sewage pond through the sewage raceway, the dry mud of isolating enters into in the anaerobism sludge thickening jar through the dry mud raceway, after adding water and diluting in the anaerobism sludge thickening jar, the rethread back flow flows back in anaerobic system, with anaerobism bacterial sustainable use in the guarantee anaerobic system, avoid losing.

2. The utility model discloses the usable ring pipe of setting up of well water filling structure, well ring canal and lower ring pipe fill into clean water to upper portion, middle part and lower part space in the anaerobic system respectively for anaerobe in the anaerobic system continuously carries out the anaerobism activity, has also improved anaerobic system's economic efficiency, make full use of resource.

3. The utility model discloses set up two stirring structures in the well anaerobism sludge thickening jar, the convenience carries out even, quick stirring to the mud material of diluting, dilutes more evenly fast, helps improving holistic work efficiency.

4. The utility model discloses total left stirring structure and right side stirring structure are the bilateral symmetry setting about the central line of anaerobism sludge thickening jar, and left side stirring structure is unanimous with the structure setting of right side stirring structure simultaneously, and accessible a set of motor carries out the transmission and drives to it stirs in step to drive left stirring structure and right side stirring structure.

Drawings

Fig. 1 is a schematic front view of an embodiment of the present invention;

fig. 2 is a front view of an embodiment of the present invention;

FIG. 3 is a schematic diagram of the internal structure of an anaerobic system according to an embodiment of the present invention;

fig. 4 is a schematic view of the internal structure of the anaerobic sludge thickening tank according to the embodiment of the present invention.

In the figure: 1. an anaerobic system; 10. a return pipe; 11. a muddy water delivery pipe; 12. a first centrifugal pump; 13. a second centrifugal pump; 14. a grid; 15. a second base; 16. a second motor; 17. a second rotating shaft; 18. a second stirring paddle; 2. a sludge dewatering structure; 20. a first outlet; 21. a second outlet; 22. a sewage conduit pipe; 23. a dry sludge water delivery pipe; 24. a third centrifugal pump; 25. a pump mount; 3. a sewage tank; 4. an anaerobic sludge concentration tank; 40. a third water inlet; 41. a feed inlet; 42. a first base; 43. a first motor; 44. a first pulley; 45. a belt; 46. a lower connecting seat; 5. a water filling structure; 50. an upper ring pipe; 51. an inner spray head; 52. an outer nozzle; 53. a first purified water delivery pipe; 54. a second purified water delivery pipe; 55. a middle ring pipe; 56. a lower ring pipe; 57. a first water inlet; 58. a second water inlet; 6. a right stirring structure; 60. a first stirring paddle; 61. a first rotating shaft; 62. a shaft sleeve; 63. a second pulley; 7. left stirring structure.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can be implemented or applied by other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

Fig. 1 is a schematic view of the front view of the embodiment of the present invention, fig. 2 is a schematic view of the front view of the embodiment of the present invention, fig. 3 is a schematic view of the internal structure of the anaerobic system of the embodiment of the present invention, and fig. 4 is a schematic view of the internal structure of the anaerobic sludge concentrating tank of the embodiment of the present invention.

Referring to fig. 1 to 4, the present invention provides an anaerobic sludge recirculation apparatus, including: the system comprises an anaerobic system 1, a sludge dewatering structure 2, a sewage pool 3 and an anaerobic sludge concentration tank 4; the upper left portion of anaerobic system 1 is connected with back flow pipe 10, and the other end of back flow pipe 10 is connected in the lower terminal surface left portion of anaerobism sludge concentration jar 4, and install second centrifugal pump 13 on the back flow pipe 10, the lower right portion of anaerobic system 1 is connected with muddy water raceway 11, the other end of muddy water raceway 11 accesss to in the sludge dewatering structure 2, and install first centrifugal pump 12 on the muddy water raceway 11, the right part lower side of sludge dewatering structure 2 is provided with first export 20, and be connected with sewage raceway 22 under the first export 20, the other end of sewage raceway 22 accesss to in the effluent water sump 3, and the right-hand member of sludge dewatering structure 2 is provided with second export 21, the other end of dry sludge raceway 23 accesss to in anaerobism sludge concentration jar 4, install third centrifugal pump 24 on the dry sludge raceway 23, the lower part of third centrifugal pump 24 is provided with pump seat 25, pump seat 25 is located the up end of anaerobism sludge concentration jar 4.

In this embodiment, a grating 14 is arranged at the upper part in the anaerobic system 1, a second base 15 is arranged at the bottom in the anaerobic system 1, a second motor 16 is installed at the middle part in the second base 15, a second rotating shaft 17 is arranged at the upper end of the second motor 16, and a plurality of groups of second stirring paddles 18 are arranged at the left part and the right part of the second rotating shaft 17.

As an embodiment of preferred, the utility model discloses well anaerobic system 1 carries the mud of many coming out through muddy water raceway 11 toward sludge dewatering structure 2 in, mud carries out the wet separation futilely in sludge dewatering structure 2, the sewage of isolating enters into effluent water sump 3 through sewage raceway 22, the dry mud of isolating enters into anaerobism sludge concentration jar 4 through dry mud raceway 23 in, after adding water and diluting in anaerobism sludge concentration jar 4, rethread back flow 10 flows back in anaerobic system 1, with the sustainable use of anaerobism bacterial in the guarantee anaerobic system 1, avoid losing.

In this embodiment, a water filling structure 5 is installed in the anaerobic system 1, an upper ring pipe 50 is disposed on the upper portion of the water filling structure 5, a middle ring pipe 55 is disposed in the middle of the water filling structure 5, a lower ring pipe 56 is disposed on the lower portion of the water filling structure 5, a plurality of groups of inner spray heads 51 are disposed on the inner ring surface of the upper ring pipe 50, a plurality of groups of outer spray heads 52 are disposed on the outer ring surface of the upper ring pipe 50, the middle ring pipe 55 and the lower ring pipe 56 are in the same structural arrangement, a first purified water conveying pipe 53 and a second purified water conveying pipe 54 are connected between the upper ring pipe 50, the middle ring pipe 55 and the lower ring pipe 56, a first water inlet 57 is disposed at the lower end of the first purified water conveying pipe 53, and a second water inlet 58 is disposed at the lower end of the second purified water conveying pipe 54.

As a preferred embodiment, the utility model discloses in fill water structure 5 set up usable upper ring pipe 50, well ring pipe 55 and lower ring pipe 56 and fill into clean water to upper portion, middle part and lower part space in the anaerobic system 1 respectively for the anaerobe in the anaerobic system 1 continuously carries out anaerobic activity, has also improved anaerobic system's economic efficiency, make full use of resource.

In this embodiment, the upper end of anaerobism sludge thickening jar 4 is provided with third inlet 40 and feed inlet 41, the lower extreme of dry sludge raceway 23 is connected in feed inlet 41 department, and the lower part of anaerobism sludge thickening jar 4 is provided with first base 42, and left stirring structure 7 is installed to the left part in the anaerobism sludge thickening jar 4, right stirring structure 6 is installed to the right part in the anaerobism sludge thickening jar 4, and left stirring structure 7 and right stirring structure 6 are the bilateral symmetry structure about the center of anaerobism sludge thickening jar 4, and left stirring structure 7 is unanimous with the structure setting of right stirring structure 6.

As an embodiment of preferred, the utility model discloses set up two stirring structures in well anaerobism sludge thickening jar 4, the convenience carries out even, quick stirring to the pug of diluting, dilutes more evenly fast, helps improving holistic work efficiency.

In this embodiment, the right stirring structure 6 is provided with a first rotating shaft 61, the left and right sides of the first rotating shaft 61 are provided with a plurality of groups of first stirring paddles 60, the lower part of the first rotating shaft 61 is rotatably connected in a shaft sleeve 62, and the lower end of the first rotating shaft 61 is provided with a second belt pulley 63; the middle part is installed first motor 43 in first base 42, and the upper end of first motor 43 is provided with first belt pulley 44, and the left and right sides all establishes about in first base 42 a set of lower connecting seat 46 to the transmission is connected with belt 45 between the second belt pulley 63 of first belt pulley 44 and the left and right sides.

As an embodiment of preferred, the utility model discloses total left stirring structure 7 and right stirring structure 6 are about the central line of anaerobism sludge thickening jar 4 and are bilateral symmetry setting, and left stirring structure 7 is unanimous with the structure setting of right stirring structure 6 simultaneously, and the accessible a set of motor carries out the transmission and drives to it stirs in step to drive left stirring structure 7 and right stirring structure 6.

The utility model discloses can effectively solve the inside silt of anaerobic system of prior art long-pending back many, regularly discharge and lead to anaerobic system inessential loss, not only influence the continuous operation of anaerobism, outward transport landfill moreover, problem with high costs, the utility model discloses with the sludge dewatering who goes out in the anaerobic system handles, dilutes the backward flow with mud again, not only reduces outward transport landfill cost, but also can avoid anaerobic system mud to run off, makes its sustainable operation, more economic environmental protection.

Claims (6)

1. An anaerobic sludge recirculation apparatus, comprising: the system comprises an anaerobic system (1), a sludge dewatering structure (2), a sewage pool (3) and an anaerobic sludge concentration tank (4);

the anaerobic system is characterized in that a return pipe (10) is connected to the upper left portion of the anaerobic system (1), the other end of the return pipe (10) is connected to the left portion of the lower end face of an anaerobic sludge concentration tank (4), a second centrifugal pump (13) is installed on the return pipe (10), a muddy water delivery pipe (11) is connected to the lower right portion of the anaerobic system (1), the other end of the muddy water delivery pipe (11) is led into a sludge dewatering structure (2), a first centrifugal pump (12) is installed on the muddy water delivery pipe (11), a first outlet (20) is arranged on the lower right portion of the sludge dewatering structure (2), a sewage delivery pipe (22) is connected to the lower portion of the first outlet (20), the other end of the sewage delivery pipe (22) is led into a sewage pool (3), a second outlet (21) is arranged at the right end of the sludge dewatering structure (2), a dry sludge delivery pipe (23) is connected to the lower portion of the second outlet (21), the other end of the dry sludge delivery pipe (23) is led into the anaerobic sludge concentration tank (4), a third centrifugal pump (24) is installed on the dry sludge delivery pipe (23), and a pump seat (25) is arranged on the anaerobic sludge concentration tank (4).

2. The anaerobic sludge reflux device as claimed in claim 1, wherein a grating (14) is arranged at the upper part in the anaerobic system (1), a second base (15) is arranged at the bottom in the anaerobic system (1), a second motor (16) is arranged at the middle part in the second base (15), a second rotating shaft (17) is arranged at the upper end of the second motor (16), and a plurality of groups of second stirring paddles (18) are arranged at the left part and the right part of the second rotating shaft (17).

3. The anaerobic sludge recirculation apparatus according to claim 1, wherein a water filling structure (5) is installed in the anaerobic system (1), an upper ring pipe (50) is arranged on the upper portion of the water filling structure (5), a middle ring pipe (55) is arranged in the middle of the water filling structure (5), a lower ring pipe (56) is arranged on the lower portion of the water filling structure (5), multiple groups of inner nozzles (51) are arranged on the inner ring surface of the upper ring pipe (50), multiple groups of outer nozzles (52) are arranged on the outer ring surface of the upper ring pipe (50), the structures of the upper ring pipe (50), the middle ring pipe (55) and the lower ring pipe (56) are arranged in a consistent manner, a first purified water conveying pipe (53) and a second purified water conveying pipe (54) are connected between the upper ring pipe (50), the middle ring pipe (55) and the lower ring pipe (56), a first water inlet (57) is arranged at the lower end of the first purified water conveying pipe (53), and a second water inlet (58) is arranged at the lower end of the second purified water conveying pipe (54).

4. The anaerobic sludge backflow device according to claim 1, wherein a third water inlet (40) and a feed inlet (41) are formed in the upper end of the anaerobic sludge concentration tank (4), the lower end of the dry sludge water pipe (23) is connected to the feed inlet (41), a first base (42) is arranged on the lower portion of the anaerobic sludge concentration tank (4), a left stirring structure (7) is installed on the left portion of the anaerobic sludge concentration tank (4), a right stirring structure (6) is installed on the right portion of the anaerobic sludge concentration tank (4), the left stirring structure (7) and the right stirring structure (6) are in a bilateral symmetry structure with respect to the center of the anaerobic sludge concentration tank (4), and the left stirring structure (7) and the right stirring structure (6) are arranged in a consistent manner.

5. The anaerobic sludge recirculation apparatus according to claim 4, wherein the right stirring structure (6) is provided with a first rotating shaft (61), the left and right sides of the first rotating shaft (61) are provided with a plurality of groups of first stirring paddles (60), the lower part of the first rotating shaft (61) is rotatably connected in the shaft sleeve (62), and the lower end of the first rotating shaft (61) is provided with a second belt pulley (63).

6. The anaerobic sludge reflux device as claimed in claim 4, wherein a first motor (43) is installed in the middle of the first base (42), a first belt pulley (44) is arranged at the upper end of the first motor (43), a left and right group of lower connecting seats (46) are arranged at the left and right parts of the first base (42), and a belt (45) is connected between the first belt pulley (44) and second belt pulleys (63) at the left and right sides in a transmission manner.

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