CN210620565U

CN210620565U - Sludge concentration dewatering system

Info

Publication number: CN210620565U
Application number: CN201921510951.8U
Authority: CN
Inventors: 翟苏辉; 吴琪; 金琪; 周俊杰
Original assignee: Dongguan Borun Environmental Protection Technology Co ltd
Current assignee: Dongguan Borun Environmental Protection Technology Co ltd
Priority date: 2019-09-11
Filing date: 2019-09-11
Publication date: 2020-05-26
Anticipated expiration: 2029-09-11

Abstract

The utility model discloses a sludge thickening and dewatering system, which comprises a sludge tank, a dosing device, a sludge thickening tank, a pipeline mixer, a screw pump, a filter press, a platform bracket and a sludge hopper; the sludge treatment method comprises the steps of collecting materialized sludge and excess sludge generated by a sewage treatment facility through a sludge tank, lifting the sludge to a sludge concentration tank through a sludge lifting pump, mixing the sludge with a sludge conditioner through a pipeline mixer in the lifting process to effectively reduce the specific resistance of the sludge, conveying the sludge concentrated by the sludge concentration tank to a filter press by using a screw pump for filter pressing, enabling sludge cakes obtained after filter pressing by the filter press to fall into a sludge hopper, and then carrying out outward transportation and disposal at regular intervals.

Description

Sludge concentration dewatering system

Technical Field

The utility model relates to a sludge treatment technical field, in particular to sludge thickening and dewatering system is applied to the processing of materialized sludge and excess sludge that produce among the sewage treatment.

Background

With the development of social economy and urbanization in China, sewage treatment plants such as bamboo shoots in spring after raining are built and put into operation in various cities throughout the country, and by the end of 2016 (9) months, 3976 seats of the sewage treatment plants are built up in the country in an accumulated way, and the sewage treatment capacity reaches 1.7 billion cubic meters per day. This certainly has a positive effect on preventing the water pollution problem in China, but a potential problem, namely the sludge treatment problem, is generated.

Sludge is a by-product of sewage treatment, a large amount of bacteria, pathogens and toxic and harmful substances in sewage are concentrated, and if the sewage is not treated properly, serious secondary pollution is caused, so that the water treatment effect is in full flow. At present, sludge treatment technologies at home and abroad are numerous, and the sludge can be divided into three types of concentration (with the water content of 95-98%), dehydration (with the water content of 60-80%) and drying (with the water content of less than 40%) according to the difference of the water content of the treated sludge, and the sludge dehydration is the most difficult link in the sludge treatment process. The existing sludge dewatering device has the advantages of high manual operation intensity, low dewatering efficiency, higher system failure rate and shorter service life.

SUMMERY OF THE UTILITY MODEL

To foretell not enough, the utility model aims to provide a structural design is ingenious, reasonable, effectively improves sludge dewatering efficiency and dehydration quality's sludge thickening dewatering system.

The utility model discloses a realize above-mentioned purpose, the technical scheme that provides is: a sludge concentration and dehydration system comprises a sludge pool, a dosing device, a sludge concentration pool, a pipeline mixer, a screw pump, a filter press, a platform support and a sludge hopper, wherein the filter press is arranged on the platform support, the sludge hopper is arranged on the platform support corresponding to the position below a sludge cake outlet of the filter press, sludge cakes filtered by the filter press fall into the sludge hopper, the sludge cakes are transported outwards at regular intervals, a sludge inlet for introducing sludge is formed in the sludge pool, a sludge stirrer and a sludge lifting pump are arranged in the sludge pool, and materialized sludge and residual sludge generated by a sewage treatment facility are stored in the sludge pool through the sludge inlet; a sludge stirrer is arranged in the sludge tank to prevent sludge from precipitating; the sludge tank is internally provided with a sludge lifting pump, sludge is conveyed by the sludge lifting pump, the pipeline mixer is respectively communicated with the outlet of the sludge lifting pump, the medicine outlet of the medicine adding device and the sludge inlet of the sludge concentration tank, the sludge outlet of the sludge concentration tank is connected with the inlet end of a screw pump, and the outlet end of the screw pump is connected with the sludge inlet of the filter press.

As the utility model discloses a preferred scheme, charge device includes the medicament jar, stirs medicine mixer and medicament measuring pump, stir the setting of medicine mixer in the medicament jar, the pump income end of medicament measuring pump stretches into in the medicament jar, and the outlet end of this medicament measuring pump forms the medicine mouth.

As an optimal scheme of the utility model, the pipeline mixer includes the cavity casing, is equipped with its first opening, second opening and the third opening that is linked together with the inner chamber on the conch wall of this cavity casing respectively, wherein first opening with the pump export of mud elevator pump is connected, the second opening with it is connected to go out the medicine mouth, the third opening with the mud import of mud thickener is connected.

As a preferred scheme of the utility model, sludge thickening tank includes frame, cell body and a center section of thick bamboo, the cell body sets up in the frame, and the bottom of this cell body dwindles gradually and forms an album mud cone, sludge outlet is located the bottom of this album mud cone, the top surface at the cell body is fixed to the upper end of a center section of thick bamboo, and the lower extreme extends to the lower part position of cell body perpendicularly, the mud import is located the upper portion of cell body, and with a center section of thick bamboo is linked together.

As an optimized proposal of the utility model, the upper side wall of the sludge concentration tank is provided with a supernatant discharge port which is connected with the regulating tank.

As an optimized proposal of the utility model, the filtrate discharge port of the filter press is connected with the adjusting tank.

As an optimized proposal of the utility model, the sludge bucket is a pneumatic sludge bucket. Namely, the bottom surface of the sludge hopper is provided with a discharge door and a hydraulic cylinder which can drive the discharge door to open or close. The lower part of the platform support allows vehicles to pass through, the vehicles enter the position right below the sludge hopper, the discharge door is opened, sludge cakes fall into a carriage, and the sludge cakes are periodically transported and disposed.

The utility model has the advantages that: the system provided by the utility model has the advantages of ingenious and reasonable structural design, materialized sludge and excess sludge generated by sewage treatment facilities are collected through the sludge tank, the sludge is lifted to the sludge concentration tank by the sludge lifting pump, the sludge is mixed with sludge conditioner through the pipeline mixer in the lifting process, the sludge specific resistance is effectively reduced, then the sludge concentrated by the sludge concentration tank is conveyed to the filter press by the screw pump for filter pressing, the mud cake after filter pressing of the filter press falls into the sludge hopper, and then the sludge is periodically transported outwards for disposal, the materialized sludge and the excess sludge generated in the sewage treatment process can be effectively treated, the sludge moisture content is reduced, the sludge reduction is realized, the scale of subsequent sludge treatment facilities is reduced, the engineering investment is reduced, the sludge moisture content can be reduced to be lower than 80 percent through actual treatment tests, in addition, the overall structure is simple, easy to realize, stable in operation, convenient in operation, good in dehydration effect, low in investment, low in operation cost and the like, and is beneficial to wide popularization and application.

The present invention will be further explained with reference to the drawings and the embodiments.

Drawings

Fig. 1 is a schematic diagram of the system structure of the present invention.

Detailed Description

Example (b): referring to fig. 1, the embodiment of the utility model provides a sludge thickening dewatering system, it includes sludge impoundment 1, charge device 2, sludge thickening pond 3, line mixer 4, screw pump 5, pressure filter 6, platform support 7 and sludge bucket 8.

The filter press 6 is arranged on a platform support 7, the sludge hopper 8 is arranged on the platform support 7 corresponding to the position below a mud cake outlet of the filter press 6, the mud cake after filter pressing of the filter press 6 falls into the sludge hopper 8, the mud cake is transported outwards at regular intervals, a sludge inlet 11 for introducing sludge is arranged on the sludge tank 1, a sludge stirrer 12 and a sludge lifting pump 13 are arranged in the sludge tank 1, and materialized sludge and residual sludge generated by a sewage treatment facility are stored in the sludge tank 1 through the sludge inlet 11; a sludge stirrer 12 is arranged in the sludge tank 1 to prevent sludge from precipitating; a sludge lifting pump 13 is arranged in the sludge tank 1, and sludge is conveyed through the sludge lifting pump 13.

The pipeline mixer 4 is respectively communicated with an outlet of the sludge lift pump 13, a medicine outlet of the medicine adding device 2 and a sludge inlet 36 of the sludge concentration tank 3, specifically, the pipeline mixer 4 comprises a hollow shell, a first opening, a second opening and a third opening which are communicated with an inner cavity of the hollow shell are respectively arranged on the shell wall of the hollow shell, wherein the first opening is connected with the outlet of the sludge lift pump 13, the second opening is connected with the medicine outlet, and the third opening is connected with the sludge inlet 36 of the sludge concentration tank 3.

The sludge outlet 35 of the sludge concentration tank 3 is connected with the inlet end 51 of the screw pump 5, and the outlet end 52 of the screw pump 5 is connected with the sludge inlet 62 of the filter press 6.

The sludge concentration tank 3 comprises a frame 31, a tank body 32 and a central cylinder 33, the tank body 32 is arranged on the frame 31, the bottom of the tank body 32 is gradually reduced to form a sludge collecting cone, the sludge outlet 35 is positioned at the bottom of the sludge collecting cone, the upper end of the central cylinder 33 is fixed on the top surface of the tank body 32, the lower end of the central cylinder 33 vertically extends to the lower part of the tank body 32, and the sludge inlet 36 is positioned at the upper part of the tank body 32 and is communicated with the central cylinder 33.

Specifically, the dosing device 2 comprises a medicament tank 21, a medicament stirring machine 22 and a medicament metering pump 23, wherein the medicament stirring machine 22 is arranged in the medicament tank 21, a pumping-in end of the medicament metering pump 23 extends into the medicament tank 21, and a pumping-out end of the medicament metering pump 23 forms the medicament outlet.

A supernatant discharge port 34 is formed on the upper side wall of the sludge concentration tank 3, and the supernatant discharge port 34 is connected with the adjusting tank. The filtrate discharge port 61 of the filter press 6 is connected to a surge tank. Specifically, the supernatant and the filtrate are discharged into a regulating reservoir in a sewage treatment system of a sewage treatment plant for further treatment.

In this embodiment, the sludge bucket 8 is preferably a pneumatic sludge bucket. The bottom surface of the pneumatic sludge hopper is provided with a discharge door and a hydraulic cylinder which can drive the discharge door to open or close. The lower part of the platform support 7 allows a vehicle to pass through, the vehicle enters the position right below the sludge hopper 8, the discharge door is opened, and mud cakes fall into a carriage and are periodically transported and disposed.

In operation, materialized sludge and excess sludge generated by the sewage treatment facility enter the sludge tank 1 through the sludge inlet 11. The sludge lifting pump 13 works to lift sludge to the sludge concentration tank 3, the sludge and the sludge conditioner are mixed through the pipeline mixer 4 in the lifting process, the specific resistance of the sludge is effectively reduced, and the sludge conditioner which is reasonable and corresponding to the sludge can be selected according to different properties of the sludge in the specific treatment process. At the moment, the screw pump 5 conveys the sludge concentrated by the sludge concentration tank 3 to the filter press 6 for filter pressing, the mud cakes filtered by the filter press 6 fall into the sludge hopper 8, when the mud cakes stored in the sludge hopper 8 reach a certain amount, the vehicle enters under the sludge hopper 8, at the moment, the discharge door is opened, all the mud cakes fall into the carriage, and the mud cakes are periodically transported and disposed by the vehicle. The whole treatment process is rapid, and the sludge dewatering efficiency and the sludge dewatering quality can be obviously improved. In summary, the utility model has the following advantages:

1. materialized sludge and excess sludge generated by the sewage treatment facility are treated by the sludge concentration and dehydration system, and the water content of the sludge can be reduced to be below 80 percent.

2. The utility model discloses sludge thickening dewatering system overall structure reasonable in design, the operation is stable, easy operation is convenient, and dewatering effect is good, has advantages such as the investment is low, the working costs is few.

3. The utility model discloses sludge thickening dewatering system produces supernatant and filtrating at the in-process of operation and discharges into sewage treatment plant's equalizing basin, then handles once more, and is friendly to the environment.

Variations and modifications to the above-described embodiments may occur to those skilled in the art, in light of the above teachings and teachings. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation. If the above embodiments of the present invention are described, the same or similar processing system is adopted, which is all within the protection scope of the present invention.

Claims

1. The utility model provides a sludge thickening dehydration system, its characterized in that, it includes sludge impoundment, charge device, sludge thickening tank, pipeline mixer, screw pump, pressure filter, platform support and sludge bucket, the pressure filter sets up on the platform support, the sludge bucket corresponds sludge cake export below position of pressure filter and sets up on the platform support, be equipped with the mud entry of introducing mud on the sludge impoundment, be equipped with sludge mixing machine and mud elevator pump in this sludge impoundment, pipeline mixer respectively with the pump export of mud elevator pump, charge device's medicine outlet, the sludge import of sludge thickening tank are linked together, the sludge outlet of sludge thickening tank is connected with the entry end of screw pump, the exit end of this screw pump with the mud of pressure filter comes the mouth to be connected.

2. The sludge concentrating and dewatering system according to claim 1, wherein the dosing device comprises a chemical tank, a chemical stirring mixer and a chemical metering pump, the chemical stirring mixer is arranged in the chemical tank, a pumping end of the chemical metering pump extends into the chemical tank, and a pumping end of the chemical metering pump forms the chemical outlet.

3. The sludge concentrating and dewatering system according to claim 1 or 2, wherein the pipeline mixer comprises a hollow casing, and a first opening, a second opening and a third opening which are respectively arranged on a wall of the hollow casing and communicated with the inner cavity, wherein the first opening is connected with a pump outlet of the sludge lift pump, the second opening is connected with the medicine outlet, and the third opening is connected with a sludge inlet of the sludge concentrating tank.

4. The sludge concentrating and dewatering system according to claim 1, wherein the sludge concentrating tank includes a frame, a tank body and a central cylinder, the tank body is disposed on the frame, the bottom of the tank body is gradually reduced to form a sludge collecting cone, the sludge outlet is located at the bottom of the sludge collecting cone, the upper end of the central cylinder is fixed on the top surface of the tank body, the lower end of the central cylinder extends vertically to the lower position of the tank body, and the sludge inlet is located at the upper portion of the tank body and is communicated with the central cylinder.

5. The sludge concentrating and dewatering system according to claim 1, wherein a supernatant discharge port is provided on an upper side wall of the sludge concentrating tank, and the supernatant discharge port is connected to the adjusting tank.

6. The sludge concentrating and dewatering system according to claim 1, wherein a filtrate discharge port of the filter press is connected to a conditioning tank.

7. The sludge thickening and dewatering system of claim 1, wherein the sludge hopper is a pneumatic sludge hopper.