CN217781008U

CN217781008U - Excess sludge's enrichment facility

Info

Publication number: CN217781008U
Application number: CN202222180193.6U
Authority: CN
Inventors: 张大健; 曾智威; 曹文娟; 彭维强; 袁国强; 康双保
Original assignee: China Railway Environmental and Technology Engineering Co Ltd
Current assignee: China Railway Environmental and Technology Engineering Co Ltd
Priority date: 2022-08-18
Filing date: 2022-08-18
Publication date: 2022-11-11
Anticipated expiration: 2032-08-18

Abstract

The utility model provides a thickening device of excess sludge. The device includes the support, install in the box of support, a row's mud subassembly for discharging to deposit in bottom half, the box is including utensil accommodating space's casing, install in accommodating space and the swash plate that sets up with a plurality of intervals that the casing is connected, install in a plurality of first weir plates of a plurality of swash plate upper ends and set up in the water inlet and the delivery port of casing, the casing includes the lateral wall and is connected with the lateral wall and encloses into the diapire of one end open-ended accommodating space jointly, from the open end of casing to diapire direction, the bore of casing reduces from top to bottom gradually, the row's mud subassembly, including installing in the mud scraper of lateral wall, a helical blade for carrying the mud of mud scraper under scraping, the drive motor of drive mud scraper and helical blade reaches the mud pipe that communicates with helical blade's discharge gate. The utility model provides a surplus sludge's enrichment facility has simple structure, area is little, the integration degree is high, advantage that concentration efficiency is high.

Description

Excess sludge's enrichment facility

Technical Field

The utility model belongs to the technical field of sludge treatment, concretely relates to enrichment facility of excess sludge.

Background

Along with the increasing of the environmental protection requirement, the market demand for integrated sewage treatment equipment is increasing, and particularly in the field of mine wastewater, along with the process of mining, the water treatment equipment needs to be moved continuously.

In the existing integrated sewage treatment equipment, two treatment modes are generally adopted for excess sludge concentration, one mode is a traditional sludge concentration tank and mainly takes a civil engineering concentration tank as a main mode, the problems that the construction period is long, the occupied area is large, the cost is high, the excess sludge cannot be transferred along with the growth of a mine and the like exist, the other mode is that concentration is not carried out before drying, only a bucket or a water tank which is convenient to transfer is adopted for storage, and the problems that the load of sludge dewatering equipment is large, the treatment efficiency is low, the medicament consumption is large and the like exist.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple structure, area is little, the high, convenient enrichment facility of surplus sludge who removes of integration degree to solve the problem that provides in the background art.

In order to achieve the above object, the present invention provides a device for concentrating excess sludge, comprising:

a support;

the box body is arranged on the support and comprises a shell with an accommodating space, a plurality of inclined plates which are arranged in the accommodating space at intervals along a first direction and connected with the shell, and a plurality of first weir plates arranged at the upper ends of the inclined plates, the shell comprises a side wall and a bottom wall connected with the side wall, the side wall and the bottom wall jointly enclose the accommodating space with an opening at one end, and the caliber of the shell is gradually reduced from the opening end of the shell to the bottom wall direction;

the side wall comprises a first side wall and a second side wall which are oppositely arranged, and a third side wall and a fourth side wall which are oppositely arranged, the first side wall, the third side wall, the second side wall and the fourth side wall are connected end to enclose the side wall, two sides of the inclined plate are respectively connected with the third side wall and the fourth side wall, and one end of the inclined plate facing the bottom wall is arranged at intervals with the first side wall and the second side wall; the box body also comprises a water inlet arranged at one end of the first side wall far away from the bottom wall and a water outlet arranged at one end of the second side wall far away from the bottom wall;

the mud discharging assembly comprises a mud scraper arranged on the first side wall, a helical blade used for conveying mud scraped by the mud scraper, a driving motor for driving the mud scraper and a mud discharging pipe communicated with a discharge hole of the helical blade.

In a specific embodiment, the first weir plate is a rectangular weir plate, and the overflow ports of the adjacent rectangular weir plates are arranged in a staggered manner.

In a specific implementation manner, the first side wall and the second side wall are both arranged in an inclined manner towards a direction away from each other, and an included angle between the first side wall and a horizontal plane is smaller than an included angle between the second side wall and the horizontal plane.

In a specific embodiment, the inclined plate inclines towards the direction close to the water inlet, an included angle between the inclined plate and the horizontal plane is 80 degrees, and the length of the inclined plate is positively correlated with the depth of the shell.

In a specific implementation mode, the diapire is the U-shaped groove structure, helical blade set up in the U-shaped inslot, just arrange mud subassembly still including press from both sides and locate the cell wall in U-shaped groove with the silica gel pad between the helical blade.

In a specific embodiment, the mud scraper comprises a driving shaft connected with the driving motor, a driven shaft arranged at an interval with the driving shaft, two first gears arranged at intervals on the driving shaft, two second gears arranged on the driven shaft and corresponding to the two first gears, two chains arranged at intervals, and a plurality of mud scrapers, two ends of each chain of which are respectively connected with the two chains, wherein each chain is respectively wound on one first gear and one second gear; the driving motor drives the driving shaft, the driving shaft drives the first gear to move, so that a chain meshed with the first gear is driven to move, and the chain drives the mud scraping plate to scrape mud along the moving direction of the chain.

In a specific embodiment, the driving motor is mounted to the bracket, and the scraper and the chain are made of rubber.

In a specific embodiment, the enrichment facility still includes into water assembly, the subassembly of intaking include with the inlet tube of water inlet intercommunication, add medicine mouth with charge device that the inlet tube communicates and install in the intake pump of inlet tube.

In a specific implementation manner, the concentration device further comprises a water outlet assembly, the water outlet assembly comprises a water outlet pipe communicated with the water outlet, and the water inlet pipe and the water outlet pipe are the same in pipe diameter and are located at the same height.

In a specific implementation manner, the water outlet assembly further includes a water outlet groove formed in one end of the water outlet pipe, which is close to the water inlet pipe, and a second weir plate installed on the upper end of the water outlet groove, the water outlet is located in the water outlet groove, the second weir plate is a rectangular weir plate, and the clean water flows into the water outlet groove from an overflow port of the second weir plate and is then discharged from the water outlet pipe.

The beneficial effects of the utility model include at least:

the utility model provides a thickening device of excess sludge includes the support, install in the box of support, be used for discharging the row's mud subassembly that deposits in the bottom half, the box includes the casing of utensil accommodating space, install in accommodating space and with a plurality of swash plates that set up along first direction interval that the casing is connected, install in a plurality of first weir plates of swash plate upper end and set up in the water inlet and the delivery port of casing, the casing includes lateral wall and the diapire of being connected with the lateral wall, lateral wall and the diapire enclose into one end open-ended accommodating space jointly, from the open end of casing to the diapire direction, the bore of casing reduces from top to bottom gradually, arrange the mud subassembly, including install in the mud scraper of first lateral wall, be used for carrying the helical blade of mud that the mud scraper scraped, drive the mud scraper with helical blade's driving motor and with the mud pipe that helical blade's discharge gate communicates; thus, the residual sludge enters the box body from the water inlet and is influenced by the structure of the box body, the flow velocity of the residual sludge is greatly reduced, the residual sludge with the flocculating agent begins to flocculate, the residual sludge flows upwards from the bottom of the box body, when the residual sludge passes through the first rectangular weir plate which is arranged by the inclined plate and the overflow port in a staggered manner, the flocculated residual sludge is changed into downward sedimentation by the blockage of the first rectangular weir plate, and the clear water continues to flow upwards and is discharged through the water outlet; the driving motor drives the mud scraper and the helical blade to move, so that the sludge sinking to the bottom of the box body is discharged through the sludge outlet pipe and enters the next procedure. The utility model provides a surplus sludge's enrichment facility has simple structure, area is little, the integration degree is high, construction cycle and advantage with low costs, concentration efficiency is high.

In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.

Drawings

Fig. 1 is a schematic structural view of an angle of a device for concentrating excess sludge according to an embodiment of the present invention;

fig. 2 is a schematic structural view of an excess sludge thickening apparatus according to an embodiment of the present invention from another angle;

fig. 3 is a schematic structural view of an apparatus for concentrating excess sludge according to another aspect of the present invention;

fig. 4 is a schematic view of an angle structure of a sludge scraper of the excess sludge thickening apparatus according to an embodiment of the present invention.

Description of reference numerals:

Detailed Description

Embodiments of the invention will be described in detail below with reference to the accompanying drawings, but the invention can be defined and covered by the claims in a variety of different embodiments.

Referring to fig. 1 and 3, the present invention provides a device for concentrating excess sludge, which is used for further concentrating excess sludge obtained by treating acidic wastewater of mines, and has the advantages of simple structure, small floor area, high integration degree, low construction period and cost, high concentration efficiency, and flexible assembly collocation according to treatment capacity.

The enrichment facility includes support 10, install in box 20, row's mud subassembly 30, the subassembly of intaking 40 and the subassembly 50 of going out of support 10, wherein, support 10 plays the effect of stable support box 20, box 20 is used for deposiing mud and carries out mud-water separation, it is used for discharging the sediment to arrange mud subassembly 30 in the mud of box 20, the subassembly 40 of intaking is used for inputing surplus mud, the clear water that goes out water subassembly 50 and is used for discharging the separation.

The support 10 mainly serves to support the box body 20, and the specific structure is not limited, and in this embodiment, the support 10 is a frame structure and is assembled by a cross beam and a vertical beam.

The box body 20 includes a housing 21 having an accommodating space, a plurality of inclined plates 22 installed in the housing 21 and connected to the housing 21 at intervals in a first direction, a plurality of first weir plates 23 installed at upper ends of the plurality of inclined plates 22, and a water inlet and a water outlet opened in the housing 21. The housing 21 includes a side wall 211 and a bottom wall 212 connected to the side wall 211, the side wall 211 and the bottom wall 212 together enclose the receiving space with an open end, and the aperture of the housing 21 gradually decreases from the open end of the housing 21 to the bottom wall 212.

Note that the first direction refers to a direction from the first side wall 2111 to the second side wall 2112.

The side wall 211 comprises a first side wall 2111 and a second side wall 2112 which are oppositely arranged, and a third side wall and a fourth side wall which are oppositely arranged, wherein the first side wall 2111, the third side wall, the second side wall 2112 and the fourth side wall are enclosed end to form the side wall 211.

In this embodiment, the first side wall 2111 and the second side wall 2112 are both inclined away from each other, and an included angle between the first side wall 2111 and a horizontal plane is smaller than an included angle between the second side wall 2112 and the horizontal plane. That is, the first side wall 2111 has a long length and a gentle slope, and the second side wall 2112 has a short length and a steep slope, so that the flow rate of the surplus sludge is decreased, and the staying time of the surplus sludge in the tank 10 is increased to improve the settling efficiency.

Preferably, the bottom wall 212 is a U-shaped groove structure.

Both sides of the sloping plate 22 are respectively connected with the third side wall and the fourth side wall, and one end of the sloping plate 22 facing the bottom wall 212 is spaced from the first side wall 2111 and the second side wall 2112.

In this embodiment, the inclined plate 22 is inclined towards the direction close to the water inlet, and the included angle between the inclined plate and the horizontal plane is 80 °.

In the present embodiment, the length of the inclined plate 22 is positively correlated with the depth of the housing 21, and the depth of the housing 21 refers to the distance from the open end of the housing 21 to each position of the first side wall 2111, the bottom wall 212 and the second side wall 2111 in the vertical direction.

In the present embodiment, the swash plate 22 is a steel plate.

The oblique angle and the length of the inclined plate 22 are set so as to reduce the flow rate of the excess sludge and prolong the retention time.

In this embodiment, the first weir plates 23 are rectangular weir plates, the number of the first weir plates 23 is the same as that of the inclined plates 22, one first weir plate 23 is vertically installed at one end of each inclined plate 22 far away from the bottom wall 212, and the installation accuracy of the inclined plates 22 can be reduced by the arrangement of the first weir plates 23.

Preferably, adjacent two the overflow mouth dislocation set of first weir plate 23, adjacent two promptly the overflow mouth of first weir plate 23 is not just to setting up, and surplus sludge passes through can reduce the velocity of flow behind the overflow mouth of first weir plate 23, the overflow mouth that misplaces simultaneously can be better block mud floc, further increase the effect of mud sediment.

The water inlet is arranged at one end, far away from the bottom wall 212, of the first side wall 2111, the water outlet is arranged at one end, far away from the bottom wall 212, of the second side wall 2112, and the water inlet and the water outlet are oppositely arranged and located at the same height.

The sludge discharge assembly 30 comprises a sludge scraper 31 mounted on the first side wall 2111, a helical blade 32 for conveying sludge scraped by the sludge scraper 31, a driving motor 33 for driving the sludge scraper 31 and the helical blade 32, and a sludge discharge pipe 34 communicated with a discharge hole of the helical blade 32.

Referring to fig. 4, the mud scraper 31 includes a driving shaft 311 connected to the driving motor 33, a driven shaft 312 spaced from the driving shaft 311, two first gears 313 mounted on the driving shaft 311 and spaced apart from each other, two second gears 314 mounted on the driven shaft 312 and corresponding to the two first gears 313, two chains 315 spaced apart from each other, and a plurality of mud scrapers 316 having two ends connected to the two chains 315, wherein each chain 315 is wound around one first gear 313 and one second gear 314; the driving motor 33 drives the driving shaft 311, the driving shaft 311 drives the first gear 313 to move, so as to drive the chain 315 engaged with the first gear 313 to move, and the chain 315 drives the mud scraping plate 316 to scrape mud along the moving direction of the chain 315.

In this embodiment, the scraper 316 and the chain 315 are made of rubber.

The helical blade 32 is disposed in the U-shaped slot.

Preferably, the sludge discharge assembly 30 further comprises a silica gel pad sandwiched between the wall of the U-shaped groove and the helical blade 32.

In this embodiment, the driving motor 33 is mounted to the stand 10.

The water inlet assembly comprises a water inlet pipe 40 communicated with the water inlet, a dosing port, a dosing device communicated with the water inlet pipe and a water inlet pump arranged on the water inlet pipe.

And adding a flocculating agent for precipitating the sludge by the aid of the dosing device to improve concentration efficiency.

The water outlet assembly 50 comprises a water outlet pipe 51 communicated with the water outlet, a water outlet groove 52 arranged at one end of the water outlet pipe 51 close to the water inlet pipe 40, and a second weir plate 53 arranged at the upper end of the water outlet groove 52, wherein the water outlet is positioned in the water outlet groove 52, and clean water flows into the water outlet groove 52 from an overflow port of the second weir plate 53 and then is discharged from the water outlet pipe 51. .

In this embodiment, the second weir plate 53 is a rectangular weir plate.

The utility model provides a enrichment facility's working process as follows:

the excess sludge of the acid mine wastewater treatment process enters the tank body 20 from the water inlet pipe 40, is influenced by the structure of the tank body 20, the flow rate of the excess sludge is greatly reduced, the excess sludge with a flocculating agent begins to flocculate, the excess sludge flows upwards from the bottom of the tank body 20, when the excess sludge passes through the inclined plate 22 and the first rectangular weir plate 23 with the staggered overflow port, the flocculated excess sludge is changed into downward sedimentation due to the blockage of the excess sludge, and clear water continues to flow upwards, flows into the water outlet groove 52 through the overflow port of the second rectangular weir plate 53 and is discharged through the water outlet pipe 51; the driving motor 33 drives the mud scraper 31 and the helical blade 32 to move, so that the sludge sinking to the bottom of the box body 20 is discharged through the mud outlet pipe 34 and enters the next process, and therefore continuous and efficient sludge concentration is achieved.

When a single device can not meet the requirement of sludge concentration, the device can be combined in a series connection mode, a parallel connection mode and a series-parallel connection combination mode.

The foregoing is a more detailed description of the invention, taken in conjunction with specific preferred embodiments thereof, and it is not intended to limit the invention to the specific embodiments thereof. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions and replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. An excess sludge thickening apparatus, comprising:

a support;

the side walls comprise a first side wall and a second side wall which are oppositely arranged, and a third side wall and a fourth side wall which are oppositely arranged, the first side wall, the third side wall, the second side wall and the fourth side wall are connected end to form the side walls, two sides of the inclined plate are respectively connected with the third side wall and the fourth side wall, and one end of the inclined plate facing the bottom wall is arranged at intervals with the first side wall and the second side wall; the box body also comprises a water inlet arranged at one end of the first side wall far away from the bottom wall and a water outlet arranged at one end of the second side wall far away from the bottom wall;

2. The excess sludge thickening apparatus of claim 1, wherein the first weir plate is a rectangular weir plate, and overflow ports of adjacent rectangular weir plates are arranged in a staggered manner.

3. The excess sludge concentrating apparatus according to claim 1, wherein the first side wall and the second side wall are both inclined in a direction away from each other, and an included angle between the first side wall and a horizontal plane is smaller than an included angle between the second side wall and the horizontal plane.

4. The excess sludge thickening apparatus of claim 3, wherein the inclined plate is inclined toward the water inlet, and an included angle between the inclined plate and a horizontal plane is 80 °, and the length of the inclined plate is positively correlated to the depth of the shell.

5. The device for concentrating excess sludge according to claim 1, wherein the bottom wall is a U-shaped groove structure, the helical blade is disposed in the U-shaped groove, and the sludge discharge assembly further comprises a silica gel pad sandwiched between a groove wall of the U-shaped groove and the helical blade.

6. The apparatus according to claim 1, wherein the sludge scraper comprises a driving shaft connected to the driving motor, a driven shaft spaced from the driving shaft, two spaced first gears mounted to the driving shaft, two second gears mounted to the driven shaft and corresponding to the two first gears, two spaced chains, and a plurality of sludge scrapers having two ends connected to the two chains, respectively, wherein each chain is wound around one of the first gears and one of the second gears; the driving motor drives the driving shaft, the driving shaft drives the first gear to move, so that a chain meshed with the first gear is driven to move, and the chain drives the mud scraping plate to scrape mud along the moving direction of the chain.

7. The excess sludge thickening apparatus of claim 6, wherein the driving motor is mounted to the bracket, and the scraper and the chain are made of rubber.

8. The device of claim 1, further comprising a water inlet assembly, wherein the water inlet assembly comprises a water inlet pipe communicated with the water inlet, a dosing device with a dosing port communicated with the water inlet pipe, and a water inlet pump installed on the water inlet pipe.

9. The excess sludge concentrating device according to claim 1, further comprising a water outlet assembly, wherein the water outlet assembly comprises a water outlet pipe communicated with the water outlet, and the water inlet pipe and the water outlet pipe have the same pipe diameter and are located at the same height.

10. The apparatus as claimed in claim 9, wherein the outlet assembly further comprises an outlet trough disposed at an end of the outlet pipe close to the inlet pipe, and a second weir plate installed at an upper end of the outlet trough, the outlet is located in the outlet trough, the second weir plate is a rectangular weir plate, and the clean water flows into the outlet trough from an overflow port of the second weir plate and is discharged from the outlet pipe.