CN213141796U

CN213141796U - Sludge dewatering conditioning device

Info

Publication number: CN213141796U
Application number: CN202021882458.1U
Authority: CN
Inventors: 晏永祥
Original assignee: Hunan Bihuiquan Environmental Protection Technology Co ltd
Current assignee: Hunan Bihuiquan Environmental Protection Technology Co ltd
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2021-05-07
Anticipated expiration: 2030-09-02

Abstract

The utility model relates to a sludge dewatering conditioning device, which comprises a first tee joint, a first pump, at least 2 sludge concentration tanks connected in series, a second tee joint and a second pump which are sequentially communicated, wherein the sludge concentration tank comprises a tank body, the bottom of the tank body is provided with a scraper blade and a sludge collection cavity, the bottom side of the tank body is provided with a sludge discharge port communicated with the sludge collection cavity, and the side wall of the tank body is provided with an overflow weir; a sludge inlet cylinder is arranged in the tank body, the position of the upper end of the sludge inlet cylinder is higher than the position of the overflow weir, and the lower end of the sludge inlet cylinder extends to the lower part of the overflow weir. The utility model discloses a sludge dewatering takes care of device's concentration, takes care of effectually, helps simplifying equipment structure, reduces the investment.

Description

Sludge dewatering conditioning device

Technical Field

The utility model belongs to a sludge dewatering takes care of device belongs to sludge treatment equipment field.

Background

With the economic development and the urbanization process of China being accelerated, the problem of water pollution is increasingly prominent, and the discharge amount of sewage is on a rapidly increasing trend. According to incomplete statisticsBy the end of 2014, the treatment capacity of domestic sewage facilities in cities and towns in China reaches 1.5 hundred million m³And d, the sewage treatment rate reaches 80 wt.%. The energy-saving and emission-reducing targets continue to be promoted in the 'twelve five' period, the standard of China on the effluent quality of municipal sewage treatment plants is continuously improved, and the first-level A standard is implemented when the effluent of municipal sewage treatment plants is discharged into key watersheds determined by China and provinces, closed and semi-closed water areas such as lakes, reservoirs and the like according to the pollutant discharge standard of municipal sewage treatment plants. At present, the sewage treatment industry in China is rapidly developed and faces a plurality of problems and challenges, which are mainly reflected in the following 3 aspects: (1) the construction fund is short, the construction of a sewage treatment plant needs great fund investment, and the lack of the fund becomes a great obstacle for limiting sewage treatment; (2) the operation cost of the sewage treatment plant is high, so that a lot of equipment of the sewage treatment plant becomes furnishings; (3) the settled sludge is low in concentration and only 1-2 wt.% and is difficult to dewater, so that a large amount of dewatering equipment is needed in the dewatering process, the equipment investment is large, the land is occupied, in addition, the water content of the dewatered sludge is high and reaches 75-80 wt.%, the sludge is large in volume, the annual sludge production amount reaches more than 3000 million tons, a large amount of land is needed to be occupied for landfill, harmful bacteria are contained in the sludge, secondary pollution is generated after landfill, and the underground pollution generated by the landfill is difficult to restore.

The existing sludge pretreatment equipment often only has a flocculation function and cannot dewater or only can dewater but does not have a conditioning function.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sludge dewatering opsonic device to prior art's is not enough to improve sludge dewatering concentration and opsonic effect, guarantee the preliminary treatment effect.

In order to solve the technical problem, the utility model discloses a technical scheme does:

a sludge dewatering conditioning device comprises a first tee joint, a first pump, at least 2 sludge concentration tanks connected in series, a second tee joint and a second pump which are sequentially communicated, wherein the sludge concentration tank comprises a tank body, the bottom of the tank body is provided with a sludge collecting cavity, the bottom side of the tank body is provided with a sludge discharge port communicated with the sludge collecting cavity, and the side wall of the tank body is provided with an overflow weir; a sludge inlet cylinder is arranged in the tank body, the position of the upper end of the sludge inlet cylinder is higher than the position of the overflow weir, and the lower end of the sludge inlet cylinder extends to the lower part of the overflow weir.

Further, the sludge concentration tank further comprises a driving mechanism and a transmission shaft in transmission connection with the driving mechanism, the transmission shaft extends into the bottom of the tank body, and a scraper is installed at the lower end of the transmission shaft.

Further, the mud feeding cylinder is sleeved outside the transmission shaft and fixed on the inner wall of the pool body through a plurality of supporting rods. So, mud can follow on the one hand and flow into the cell body along mud section of thick bamboo inner wall, transmission shaft, and is more stable, and is littleer to the mud impact of cell body bottom, and on the other hand for the striking frequency of mud that flows down increases, further reduces mud impact force.

Furthermore, the inlet end of the sludge inlet cylinder is provided with a sludge blocking net to filter out impurities, so that the impurities are prevented from blocking the equipment, the flow speed of the sludge can be reduced to a certain degree, the impact force on the concentrated sludge in the tank is reduced, and the sludge can be ensured to sink along with the gravity to be sequentially and continuously concentrated.

Further, be equipped with a plurality of first swash plates and second swash plate in the mud feeding barrel, first swash plate and second swash plate from top to bottom set up in turn in a staggered way, and the upper end of swash plate is fixed on mud feeding barrel inner wall, and the swash plate slope downwardly extending forms S-shaped baffling passageway in mud feeding barrel.

Further, the distance between the sludge inlet cylinder and the bottom of the tank body is 1/3-2/5 of the height of the tank body.

Further, the bottom of the tank body is conical, and the cross-sectional area is gradually reduced; the mud collecting cavity is positioned at the center of the bottom of the tank body.

Optionally, the pump is one of a mortar pump, a screw pump and a plunger pump.

Further, the outlet of the second pump is communicated with a filter press.

In the utility model, while inputting sludge, the first tee joint inputs coagulant and other medicaments, then the sludge and medicament mixture enters the lower part of the sludge concentration tank, the arrangement of the sludge inlet cylinder can effectively reduce the flow rate of the sludge entering the tank body, the impact force of the sludge on the concentrated sludge in the tank is reduced, the sludge can be ensured to sink orderly and continuously concentrate along with the gravity, the sewage flows reversely upwards and slowly enters the overflow weir, and the clear water can be continuously discharged through the overflow weir; the scraper at the bottom of the sludge concentration tank can introduce sludge into the middle of the tank body from two sides so as to facilitate the sludge to be collected into the sludge collection cavity, and then the sludge in the sludge collection cavity flows into the next-stage sludge concentration tank through the sludge discharge port for further concentration; after the whole concentration treatment is finished, the sludge flows out, flows through the second tee joint and is sent to the next-stage treatment facility through the second pump. Agents such as a conditioner and the like can be added into the concentrated sludge through the second tee joint, and then the sludge is sent into a filter press for dehydration.

The utility model discloses a first tee bend of sludge dewatering conditioning device accessible adds medicaments such as coagulant as required, adds medicaments such as conditioner through the second three to through corresponding pump misce bene, optimize the concentrated effect of mud in the concentrated pond of sewage, condition the effect, improve subsequent filter-pressing dehydration effect.

Drawings

FIG. 1 is a schematic structural view of a sludge dewatering and conditioning apparatus according to a first embodiment of the present invention.

Fig. 2 is a schematic structural view of a sludge thickener according to a first embodiment of the present invention.

Fig. 3 is a schematic structural view of a mud feeding barrel according to a first embodiment of the present invention.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" in the following description are used only to indicate the correspondence between the upper, lower, left and right directions of the drawings themselves, and do not limit the structure.

Referring to fig. 1, a sludge dewatering conditioning device comprises a first tee joint 10, a

first pump

11, 2 sludge concentration tanks connected in series, a second tee joint 12 and a second pump 13 which are sequentially communicated, wherein the sludge concentration tank comprises a tank body 1, a scraper 4 and a sludge collecting cavity 5 are arranged at the bottom of the tank body 1, a sludge discharge port 6 communicated with the sludge collecting cavity 5 is arranged at the bottom side of the tank body 1, and an overflow weir 3 is arranged on the side wall of the tank body 1; a sludge inlet cylinder 2 is arranged in the tank body 1, the upper end of the sludge inlet cylinder 2 is higher than the overflow weir 3, and the lower end of the sludge inlet cylinder 2 extends to the lower part of the overflow weir 3; the mud inlet cylinder is a steady flow cylinder. Optionally, a driving pump is arranged between the 2 sludge concentration tanks connected in series to pump the sludge in the sludge concentration tank at the front end into the sludge concentration tank at the rear end.

Referring to fig. 2, the sludge concentration tank further comprises a driving mechanism 8 mounted at the top of the tank body and a transmission shaft 7 in transmission connection with the driving mechanism 8, the transmission shaft extends vertically, and the transmission shaft 7 extends into the bottom of the tank body 1 and is in transmission connection with the scraper 4.

The mud feeding cylinder 2 is sleeved outside the transmission shaft 7 and shares a central axis with the transmission shaft 7, and the mud feeding cylinder 2 is fixed on the inner wall of the tank body 1 through a plurality of supporting rods 9. And a mud blocking net is arranged at the inlet end of the mud inlet cylinder 2. Referring to fig. 3, a plurality of first inclined plates 201 and second inclined plates 202 are arranged in the sludge inlet cylinder 2, the first inclined plates 201 and the second inclined plates 202 are sequentially arranged in a staggered manner from top to bottom, the upper ends of the inclined plates are fixed on the inner wall of the sludge inlet cylinder 2, the lower ends of the inclined plates extend downwards in an inclined manner, and an S-shaped baffling channel is formed in the sludge inlet cylinder 2 so as to further reduce the speed of sludge flowing into the tank body, reduce the disturbance of the sludge on the concentrated sludge and further strengthen the sludge concentration effect.

The bottom of the tank body 1 is conical, and the cross-sectional area is gradually reduced; the mud collecting cavity 5 is positioned at the central position of the bottom of the tank body 1.

The outlet of the second pump 13 is connected with a filter press 14.

The utility model discloses a sludge dewatering takes care of device can realize continuous concentration dehydration and carry out the mud in step and take care of, has overcome to exist in the current sludge pretreatment equipment technique and can only flocculate, can not dewater and can only dewater the weak point that can not take care of in step. The utility model discloses a reducible medicament quantity of sludge dewatering conditioning device improves sludge dewatering concentration and conditions the effect, need not to set up extra medicament, mud mixing mechanism, and the structure is retrencied, and reducible dehydration equipment investment reduces equipment area.

The above-mentioned embodiments are illustrative and should not be construed as limiting the scope of the invention, which is defined by the appended claims, and all modifications of the equivalent forms of the present invention which are obvious to those skilled in the art after reading the present invention.

Claims

1. A sludge dewatering conditioning device is characterized by comprising a first tee joint (10), a first pump (11), at least 2 sludge concentration tanks connected in series, a second tee joint (12) and a second pump (13) which are communicated in sequence; the sludge concentration tank comprises a tank body (1), a sludge collection cavity (5) is formed in the bottom of the tank body (1), a sludge discharge port (6) communicated with the sludge collection cavity (5) is formed in the bottom side of the tank body (1), and an overflow weir (3) is arranged on the side wall of the tank body (1); the sludge feeding device is characterized in that a sludge feeding cylinder (2) is arranged in the pool body (1), the upper end of the sludge feeding cylinder (2) is higher than the overflow weir (3), and the lower end of the sludge feeding cylinder (2) extends to the lower part of the overflow weir (3).

2. The sludge dewatering and conditioning device according to claim 1, wherein the sludge concentration tank further comprises a driving mechanism (8) and a transmission shaft (7) in transmission connection with the driving mechanism (8), the transmission shaft (7) extends into the bottom of the tank body (1), and the scraper (4) is installed at the lower end of the transmission shaft (7).

3. The sludge dewatering and conditioning device according to claim 1, wherein the sludge inlet cylinder (2) is sleeved outside the transmission shaft (7), and the sludge inlet cylinder (2) is fixed on the inner wall of the tank body (1) through a plurality of support rods (9).

4. The sludge dewatering conditioning apparatus according to claim 1, wherein the inlet end of the sludge inlet barrel (2) is provided with a mud blocking net.

5. The sludge dewatering conditioning device according to claim 1, wherein a plurality of first inclined plates (201) and second inclined plates (202) are arranged in the sludge inlet cylinder (2), the first inclined plates (201) and the second inclined plates (202) are sequentially arranged in a staggered manner from top to bottom, the upper ends of the inclined plates are fixed on the inner wall of the sludge inlet cylinder (2), and the inclined plates extend downwards in an inclined manner to form an S-shaped baffling channel in the sludge inlet cylinder (2).

6. The sludge dewatering conditioning apparatus according to any one of claims 1 to 5, wherein the bottom of the tank body (1) is tapered, and the cross-sectional area is gradually reduced; the mud collecting cavity (5) is positioned at the central position of the bottom of the tank body (1).

7. The sludge dewatering conditioning apparatus according to any one of claims 1 to 5, characterised in that the outlet of the second pump (13) is connected to a filter press (14).