CN215538669U - Particle separation equipment - Google Patents

Abstract

The utility model relates to particle separation equipment which comprises two chain plate type mud scrapers respectively arranged on the water inlet side and the water outlet side of a sedimentation tank (1), wherein the bottoms of the two mud scrapers are provided with combined movable traction wheels (2), and the combined movable traction wheels (2) are simultaneously connected with the two mud scrapers. Compared with the prior art, the utility model scrapes mud in different areas, and realizes the separation of the target mud according to the quality.

Description

Particle separation equipment

Technical Field

The utility model relates to the technical field of water treatment, in particular to particle separation equipment.

Background

The precipitation separation in the water treatment process is widely applied to processes such as activated sludge mud-water separation, coagulation precipitation chemical sludge separation and the like. In separation, the characteristics of the sludge are not generally distinguished by a precipitation process, and the precipitated sludge is collected and mixed for treatment.

With the continuous emergence of various novel sewage treatment processes such as an activated sludge method, a granular sludge process, a heavy powder carrier reinforced water treatment process, a granular sludge flocculent sludge composite process, a biochemical tank in-situ chemical phosphorus removal process and the like, the sludge in the sewage reactor gradually presents various composite characteristics, so that strict separation and distinction are required when target sludge is recovered and residual sludge is discharged.

The mud scraper is a mud discharging device, mainly used in municipal sewage treatment plants, among the sedimentation tank among waterworks and industrial wastewater treatment, wherein, the chain slat type mud scraper arranges mud efficiently, moreover, the steam generator is simple in structure, mainly by transmission (motor reducer, drive chain system), from driving wheel (axle) device, action wheel (axle) device, take-up pulley (axle) device, driving chain and scraper blade, a bracket, parts such as electric cabinet constitute, be applicable to more than or equal to 6 meters's rectangle sedimentation tank, rectangle primary sedimentation tank and rectangle secondary sedimentation tank, however, the sedimentation tank width of chain slat type mud scraper receives the restriction of scraper blade and is usually not more than 6m, and can't separate the mud that has different characteristics and distinguish.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a particle separation device which can scrape mud in a subarea manner and realize the quality separation of target sludge.

The purpose of the utility model can be realized by the following technical scheme: the utility model provides a particle separation equipment, includes and sets up two chain slat type mud scrapers of intaking side and play water side at the sedimentation tank respectively, the bottom of two mud scrapers is provided with the combination and removes the traction wheel, the combination remove the traction wheel and connect two mud scrapers simultaneously. The granules with large size and the granules with heavy weight are quickly settled, the settlement area is close to the water inlet and is positioned in the range of the mud scraper on the water inlet side, and on the contrary, the granule settlement area is close to the water outlet and is positioned in the range of the mud scraper on the water outlet side. The mud scraping ranges of the two mud scrapers are adjusted simultaneously through the combined movable traction wheel, and the mud scraping ranges of the two mud scrapers are ensured to be complementary.

Furthermore, the combined movable traction wheel comprises a water inlet side traction wheel and a water outlet side traction wheel, the water inlet side traction wheel is connected with a rotary chain of the water inlet side mud scraper, and the water outlet side traction wheel is connected with a rotary chain of the water outlet side mud scraper;

and a constant interval is maintained between the water inlet side traction wheel and the water outlet side traction wheel.

Furthermore, the mud scraper is provided with a tension wheel, a first fixed guide wheel and a second fixed guide wheel;

the rotating chain of the mud scraper positioned on the water inlet side rotates around the tension wheel, the first fixed guide wheel, the traction wheel on the water inlet side and the second fixed guide wheel, and the rotating chain of the mud scraper positioned on the water outlet side rotates around the tension wheel, the first fixed guide wheel, the traction wheel on the water outlet side and the second fixed guide wheel;

the two mud scrapers have the same structure and are oppositely arranged, and the rotating directions of the rotating chains are opposite.

Preferably, the mud scraper is provided with a hydraulic push rod, and the hydraulic push rod drives the tension pulley to move so as to maintain constant tension of the revolving chain. The hydraulic push rod and the tension wheel compensate displacement generated by moving the combined traction wheel by using constant force, and the rotation chain is prevented from loosening.

Preferably, the mud scraper further comprises a tension wheel driving device, a driving chain, a driving wheel and a sliding shaft;

the tensioning wheel driving device drives the driving wheel through the driving chain, the driving wheel and the tensioning wheel synchronously rotate through the sliding shaft, and the tensioning wheel drives the rotary chain to rotate.

Preferably, the mud scraper further comprises a connecting shaft moving frame and a track groove;

the tensioning wheel driving device is fixed on the connecting shaft moving frame, the connecting shaft moving frame is connected with the hydraulic push rod, and the tensioning wheel is driven to move along the track groove under the action of the hydraulic push rod.

Preferably, the combined movable traction wheel is connected with a traction chain, the traction chain is connected with the combined movable traction wheel driving device, and the traction chain drives the combined movable traction wheel to move along the fixed guide groove under the driving of the combined movable traction wheel driving device.

Preferably, the inner side and the outer side of the traction chain are symmetrically provided with fixed guide wheels, and the fixed guide wheels are matched with each other, so that the traction chain drives the combined movable traction wheel to move along the horizontal direction.

Preferably, the two mud scrapers are provided with mud scrapers, the mud scraping directions are opposite, the water inlet side mud scraper scrapes mud towards the water inlet side, the water outlet side mud scraper scrapes mud towards the water outlet side, and the two mud scrapers share one mud scraper bracket.

Preferably, the sedimentation tank is provided with mud hoppers on both the water inlet side and the water outlet side;

the water inlet side of the sedimentation tank is provided with a perforated tracery wall water inlet, and the water outlet side is provided with a water outlet overflow trough.

A method of using the particle separation apparatus described above, comprising the steps of:

s1: the sludge mixed liquor enters a sedimentation tank, the sludge with high sedimentation speed is sedimentated in the range of a mud scraper at the water inlet side, and the sludge with low sedimentation speed is sedimentated in the range of a mud scraper at the water outlet side;

s2: the two mud scrapers are started to scrape mud, the mud scraper on the water inlet side scrapes the mud with high settling speed into the mud bucket on the water inlet side, and the mud scraper on the water outlet side scrapes the mud with low settling speed into the mud bucket on the water outlet side;

s3: according to the real-time condition of sewage treatment, the combined movable traction wheel is moved to the water inlet side or the water outlet side, and the mud scraping range of the mud scraper at the water inlet side and the mud scraper at the mud outlet side is changed.

Compared with the prior art, the utility model has the following advantages:

1. the utility model carries out targeted research aiming at new phenomena appearing in the current water treatment industry of China, different sludge is settled and distributed at the bottom of the pool based on the difference of gravity settling characteristics generated by the characteristics of the particle size distribution, specific gravity and the like of the sludge, and the sludge scraper is arranged to scrape the sludge in a partition way, so that the separation of the target sludge in different qualities is realized, and the utility model has important significance for improving the quality improvement and efficiency improvement level of the sewage treatment plant of China and realizing the short plate supplement and strength item of the sewage treatment plant;

2. the two chain plate type mud scrapers are oppositely arranged and matched, the mud scraping ranges of the two mud scrapers are adjusted simultaneously by combining the movable traction wheels, the mud scraping ranges of the two mud scrapers are ensured to be complementary, the mud scrapers are high in working efficiency and flexible and convenient to adjust, and mud scraping dead angles can be avoided;

3. the fixed guide wheel plays a role in limiting and guiding the traction chain, and the fixed guide groove plays a role in limiting and guiding the combined movable traction wheel, so that the traction chain can enable the combined movable traction wheel to stably move on the fixed guide groove under the driving of the combined movable traction wheel driving device, the mud scraping range of the two chain plate type mud scrapers is accurately adjusted, and the separation and the distinguishing of the sludge are realized;

4. according to the utility model, through the matched arrangement of the tension wheel and the hydraulic push rod, the displacement generated by the combined movable traction wheel is compensated by using constant force, so that the loosening of the rotary chain is prevented, and the structural stability and the mud scraping effect of the mud scraper are ensured;

5. according to the utility model, through the arrangement of the connecting shaft moving frame, the track groove and other structures, the stability and the accuracy of the tensioning wheel in the moving process are improved.

Drawings

FIG. 1 is a schematic view of a centered mode configuration of the particle separation apparatus of the present invention;

FIG. 2 is a schematic structural view of a left-hand-in/right-hand-out mode of the particle separating apparatus of the present invention;

FIG. 3 is a schematic view of a left-hand and right-hand driving mode of the particle separating apparatus of the present invention;

FIG. 4 is a cross-sectional view taken along plane A-A of FIG. 2;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 6 is a cross-sectional view taken along plane C-C of FIG. 2;

in the figure: 1-a sedimentation tank, 2-a combined movable traction wheel, 21-a water inlet side traction wheel, 22-a water outlet side traction wheel, 3-a rotary chain, 4-a tension wheel, 5-a first fixed guide wheel, 6-a second fixed guide wheel, 7-a hydraulic push rod, 8-a tension wheel driving device, 9-a driving chain, 10-a driving wheel, 11-a sliding shaft, 12-a connecting shaft movable frame, 13-a track groove, 14-a traction chain, 15-a combined movable traction wheel driving device, 16-a fixed guide groove, 17-a fixed guide wheel, 18-a mud scraper, 19-a mud scraper bracket, 20-a mud bucket, 23-a perforated tracery wall water inlet and 24-a water outlet overflow groove.

Detailed Description

The utility model is described in detail below with reference to the figures and specific embodiments. The following examples are carried out on the premise of the technical scheme of the utility model, and detailed embodiments and specific operation processes are given, but the scope of the utility model is not limited to the following examples.

Example 1

The utility model provides a granule splitter, as shown in fig. 1 ~ 3, includes the mud scraper bracket 19 and the combination removal draw gear of left side mud scraper, right side mud scraper and two mud scraper shares, two mud scrapers structures are the same, are relative setting, are chain slat type mud scraper, and scrape mud opposite direction. This granule splitter sets up in sedimentation tank 1, and sedimentation tank 1's left side is equipped with perforation tracery wall water inlet 23, and for the side of intaking, the right side is equipped with out water overflow launder 24, and for going out the water side, all be provided with bagger 20 in the side of intaking and play water side, the gyration chain 3 clockwise rotation of left side mud scraper, the mud scraper 18 on the gyration chain 3 scrapes mud to intake side bagger 20, the gyration chain 3 counter-clockwise turning of right side mud scraper, the mud scraper 18 on the gyration chain 3 scrapes mud to play water side bagger 20.

The combined movable traction device comprises a combined movable traction wheel 2, a traction chain 14, a combined movable traction wheel driving device 15, a fixed guide groove 16 and a fixed guide wheel 17, the combined movable traction wheel 2 is connected with the traction chain 14, the movable traction wheel driving device 15 is connected above the traction chain 14, the inner side and the outer side of the combined movable traction wheel are respectively and symmetrically provided with the fixed guide wheel 17, so that the traction chain 14 is integrally in a convex structure, and the traction chain 14 drives the combined movable traction wheel 2 to move left and right along the horizontally arranged fixed guide groove 16 under the driving of the combined movable traction wheel driving device 15. The combined movable traction wheel 2 comprises a water inlet side traction wheel 21 and a water outlet side traction wheel 22, and the water inlet side traction wheel 21 and the water outlet side traction wheel 22 are always kept at equal intervals in the left-right moving process, so that the two mud scraping ranges are complementary.

Taking the left-side mud scraper as an example, the left-side mud scraper comprises a hydraulic push rod 7, a connecting shaft moving frame 12, a tension wheel driving device 8, a driving chain 9 (shown in figure 5), a driving wheel 10 (shown in figure 5), a sliding shaft 11, a track groove 13, a tension wheel 4, a first fixed guide wheel 5, a second fixed guide wheel 6, a rotary chain 3 and a mud scraper 18. The right-side mud scraper is identical to the left-side mud scraper in components.

The tension wheel driving device 8 is fixed on a connecting shaft moving frame 12, and the connecting shaft moving frame 12 is connected with the hydraulic push rod 7. Tensioning wheel drive arrangement 8 passes through drive chain 9 drive wheel 10, drive wheel 10 is connected through sliding shaft 11 and take-up pulley 4 and is realized synchronous rotation, take-up pulley 4 can drive gyration chain 3 and rotate, gyration chain 3 encircles take-up pulley 4, first fixed leading wheel 5, the side traction wheel 21 of intaking of traction wheel 2 is removed in the combination, the fixed leading wheel 6 of second carries out clockwise rotation, set up mud scraper 18 on the gyration chain 3 in order to strike off bottom of the pool mud and get into left side mud bucket 20. The adjustment of the service length of the mud scraper can be realized by moving the traction wheel 2 in combination with the horizontal movement. After the combined movable traction wheel 2 moves, the tension of the chain changes. When the combined traction wheel moves to the right and the tension of the chain is increased, the constant force hydraulic push rod 7 is shortened, and the connecting shaft moving frame 12, the tension wheel driving device 8, the driving wheel 10, the tension wheel 4, the sliding shaft 11 and the like move to the right along the track groove 13 together to maintain constant tension. And vice versa.

The right-side mud scraper and the left-side mud scraper are identical in structure and are arranged oppositely, the rotary chain 3 of the right-side mud scraper rotates anticlockwise around the tension wheel 4, the first fixed guide wheel 5, the water outlet-side traction wheel 22 and the second fixed guide wheel 6, and mud at the bottom of the pool is scraped into the right-side mud bucket 20.

The particle separation equipment can be used for treating mixed liquid of granular sludge and flocculent filamentous sludge, and comprises the following steps:

(1) the service lengths of the left and right mud scrapers are pre-configured according to process design parameters and are pre-assembled in a centering mode, as shown in fig. 1.

(2) The mixed liquid of the granular sludge and the flocculent filamentous sludge enters the sedimentation tank 1 from the water inlet 23 of the perforated tracery wall at the left side.

(3) The granular sludge with larger size is settled and quickly distributed in the range of the left mud scraper, and the flocculent filamentous sludge is settled and slowly distributed in the range of the right mud scraper.

(4) Open both sides mud scraper and scrape mud, left side mud scraper scrapes granular sludge into mud bucket 20 left, measures such as accessible external elevator pump carry the backward flow with mud, carry out sewage treatment, right side mud scraper scrapes into mud bucket 20 with flocculent filamentous sludge right, flocculent filamentous sludge is arranged outward as excess sludge after can collecting, with the proportion of the granular sludge in the improvement biochemical pond, thereby improve sewage treatment efficiency, or can send flocculent filamentous sludge to the granulation reactor and accelerate granular sludge's formation, reduce the mud inflation.

(5) According to the actual condition of sewage treatment, the amount of the excess sludge needing to be discharged outwards can change along with the water quality, when the excess sludge needing to be discharged outwards is less, the combined movable traction wheel 2 can be moved rightwards to enter a left-going and right-going mode (see figure 2), the service length of the right-side mud scraper is reduced, and when the excess sludge needing to be discharged outwards is more, the combined movable traction wheel 2 can be moved leftwards to enter a left-going and right-going mode (see figure 3).

Example 2

The particle separation equipment has the same structure as the embodiment 1, is used for treating mixed liquid of phosphorus removal chemical sludge and inorganic micro-sand and biochemical sludge, and comprises the following steps:

(1) and pre-configuring the service lengths of the left mud scraper and the right mud scraper according to the process design parameters, and pre-assembling the left mud scraper and the right mud scraper in a centered mode.

(2) The mixed liquid containing the dephosphorization chemical sludge and the inorganic micro-sand and the biochemical sludge enters the sedimentation tank 1 from the water inlet 23 of the perforated tracery wall at the left side.

(3) The chemical sludge and the inorganic micro-sand sludge with larger specific gravity are settled and quickly distributed in the range of the left mud scraper, and the biochemical sludge with specific gravity close to the settling speed of water is slowly distributed in the range of the right mud scraper.

(4) And the mud scrapers on the two sides are started to scrape mud, and the mud scraper on the left side scrapes chemical sludge and inorganic micro-sand sludge into the mud bucket 20 leftwards to be discharged as residual sludge so as to reduce the content of inorganic matters in the sludge and improve the activity of the activated sludge. The mud scraper on the right side scrapes the biochemical sludge into the mud bucket 20 rightwards, and the biochemical sludge can be collected and then flows back to the sewage treatment biochemical pool for recycling.

(5) According to the actual condition of sewage treatment, the amount of chemical sludge and inorganic micro-sand sludge to be discharged outside can change along with the water quality, when the amount of chemical sludge to be discharged outside is less, the combined movable guide wheel can be moved leftwards to enter a left-going and right-going mode, the service length of a left-side mud scraper is reduced, and when the amount of chemical sludge to be discharged outside is more, the combined movable guide wheel can be moved rightwards to enter a left-going and right-going mode.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.

Claims (8)

1. The particle separation equipment is characterized by comprising two chain plate type mud scrapers which are respectively arranged on the water inlet side and the water outlet side of a sedimentation tank (1), wherein the bottoms of the two mud scrapers are provided with combined movable traction wheels (2), and the combined movable traction wheels (2) are simultaneously connected with the two mud scrapers;

the combined movable traction wheel (2) comprises a water inlet side traction wheel (21) and a water outlet side traction wheel (22), the water inlet side traction wheel (21) is connected with a rotary chain (3) of the water inlet side mud scraper, and the water outlet side traction wheel (22) is connected with the rotary chain (3) of the water outlet side mud scraper;

a constant interval is maintained between the water inlet side traction wheel (21) and the water outlet side traction wheel (22);

the mud scraper is provided with a tension wheel (4), a first fixed guide wheel (5) and a second fixed guide wheel (6);

the rotary chain (3) of the mud scraper positioned on the water inlet side rotates around the tension wheel (4), the first fixed guide wheel (5), the traction wheel (21) on the water inlet side and the second fixed guide wheel (6), and the rotary chain (3) of the mud scraper positioned on the water outlet side rotates around the tension wheel (4), the first fixed guide wheel (5), the traction wheel (22) on the water outlet side and the second fixed guide wheel (6);

the two mud scrapers have the same structure and are oppositely arranged, and the rotating directions of the rotating chains (3) are opposite.

2. The particle separating apparatus according to claim 1, wherein the scraper is provided with a hydraulic push rod (7), and the hydraulic push rod (7) drives the tension wheel (4) to move so as to maintain the constant tension of the revolving chain (3).

3. A particle separating apparatus according to claim 2, characterized in that the scraper further comprises a tensioner drive (8), a drive chain (9), a drive wheel (10) and a sliding shaft (11);

the tensioning wheel driving device (8) drives the driving wheel (10) through the driving chain (9), the driving wheel (10) and the tensioning wheel (4) rotate synchronously through the sliding shaft (11), and the tensioning wheel (4) drives the rotary chain (3) to rotate.

4. A particle separating apparatus according to claim 3, wherein said mud scraper further comprises a shaft connecting moving frame (12) and a rail groove (13);

the tensioning wheel driving device (8) is fixed on the connecting shaft moving frame (12), the connecting shaft moving frame (12) is connected with the hydraulic push rod (7), and the tensioning wheel (4) is driven to move along the track groove (13) under the action of the hydraulic push rod (7).

5. The particle separating apparatus according to claim 1, wherein the combined movable traction wheel (2) is connected with a traction chain (14), the traction chain (14) is connected with a combined movable traction wheel driving device (15), and the traction chain (14) drives the combined movable traction wheel (2) to move along the fixed guide groove (16) under the driving of the combined movable traction wheel driving device (15).

6. The particle separating apparatus according to claim 5, wherein the inner side and the outer side of the pulling chain (14) are symmetrically provided with fixed guide wheels (17), and the fixed guide wheels (17) are mutually matched to drive the combined movable pulling wheel (2) to move along the horizontal direction by the pulling chain (14).

7. A particle separating apparatus according to claim 1, wherein the two scrapers are provided with scrapers (18) in opposite directions, the inlet side scraper scrapes mud to the inlet side, the outlet side scraper scrapes mud to the outlet side, and the two scrapers share a scraper carrier (19).

8. A particle separating apparatus according to claim 1, characterized in that the settling tank (1) is provided with a hopper (20) on both the inlet side and the outlet side;

the water inlet side of the sedimentation tank (1) is provided with a perforated tracery wall water inlet (23), and the water outlet side is provided with a water outlet overflow trough (24).

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