CN203855503U

CN203855503U - Sludge treatment system with sludge in-situ reduction function

Info

Publication number: CN203855503U
Application number: CN201420205635.0U
Authority: CN
Inventors: 周浩男
Original assignee: JIANGSU CHI-WORLD ENVIRONMENT TECHNOLOGY Co Ltd
Current assignee: JIANGSU CHI-WORLD ENVIRONMENT TECHNOLOGY Co Ltd
Priority date: 2014-04-25
Filing date: 2014-04-25
Publication date: 2014-10-01
Anticipated expiration: 2024-04-25

Abstract

The utility model discloses a sludge treatment system with a sludge in-situ reduction function. The sludge treatment system comprises a sewage collection tank, a chemical agent adding treatment device, a filter press dewatering device, a mixing-crushing device, a drying device, a tail gas treatment device, a mixing-stirring device and a baking-free brick-making device, wherein the chemical agent adding treatment device, filter press dewatering device, mixing-crushing device and drying device are sequentially connected by virtue of pipelines; an exhaust port of the drying device is connected to the tail gas treatment device, a slag outlet of the drying device is connected to the mixing-stirring device and then the mixing-stirring device is connected with the baking-free brick-making device. The sludge treatment system disclosed by the utility model is suitable for upgrading a sewage treatment system and can be seamlessly connected with the sewage treatment system and a newly-built sewage treatment system, since a deodorizing disinfection is carried out in the processing stage, the surrounding environment is improved; by virtue of increasing the system, the zero factory of sludge can be achieved and the sludge treatment cost is greatly reduced; meanwhile, the system is small in occupation area, simple to operate, and is applicable to various types of sewage treatment plants.

Description

A kind of sludge treating system with sludge in-situ minimizing function

Technical field

The utility model relates to a kind of sludge treatment equipment, specifically a kind of sludge treating system with sludge in-situ minimizing function.

Background technology

Along with China's level of urbanization improves constantly, sewage treatment facility construction has obtained high speed development, have more than 2500 according to " the sludge treatment treatment depth investigation of 2013-2017 China and the report of investment strategy planning application " statistics China's urban wastewater treatment firm in 2010, municipal sewage treatment ability has reached 1.22 hundred million tons of every days, improve for realizing national reduction of discharging target and water surrounding, made huge contribution.But a large amount of excess sludges have been supervened in the construction of Sewage Plant and operation, in water ratio 80%, the whole nation year total water production rate of mud will break through 3,000 ten thousand tons very soon, and sludge treatment situation is very severe.

Because China's Sewage Plant is in process of construction, " the light mud of heavy water " for a long time, China's urban wastewater treatment firm has been realized the preliminary minimizing of mud substantially, but the stabilization treatment of unrealized mud.According to statistics, approximately 80% Sewage Plant has the thickening facility of mud, has reached minimizing to a certain degree; Approximately there is 80% mud without stabilization treatment, in mud, contain the pollutents such as repugnant substance, pathogenic agent, persistent organism and transfer to land from sewage, cause pollutent further to spread, the environment reduction of discharging benefit of building up the large sewage treatment facility putting into operation is had a greatly reduced quality.According to statistics, at present in disposal options, landfill accounts for 63.0%, sludge aerobic fermentation+agricultural accounts for 13.5%, mud nature mummification comprehensive utilization accounts for 5.4%, sludge incineration accounts for 1.8%, mud air storage and outward transport respectively account for 1.8% and 14.4%.In fact, the mud overwhelming majority of landfill, air storage and outward transport belongs to random disposal, and the ratio that really realizes safe disposal is no more than 20%.

Restrict a lot of because have of sludge treatment disposal facility construction, but national sludge treatment disposal general technical route is not clearly one of important restriction factor.The contradiction lagging behind for alleviating sludge yield and sludge treatment ability, China has put into effect a series of policies, planning in recent years.At present, the technological line of China's sludge treatment and industry policy are just progressively able to distinct, and industrialization and the marketization are about to start.Meanwhile, sludge disposal will more and more come into one's own, and technology, policy and the function mode of sludge disposal will have breakthrough in future soon.It is predicted, during " 12 ", sludge treatment is disposed to invest and will be reached 60,000,000,000 yuan, has turned near than Eleventh Five-Year Plan.Sludge treatment is disposed industry and be expected to enter Fast growth phase under policy is promoted.

Process that the general energy consumption of existing apparatus of excess sludge is high, expense is high and processing efficiency is low, can not reach processing requirements, therefore how efficiently, process excess sludge succinctly, cheaply and become the emphasis of current research.

Utility model content

The purpose of this utility model is to provide a kind of sludge treating system with sludge in-situ minimizing function, and this system can greatly reduce the volume of mud and eliminate the harm that mud brings in sludge handling process.

A kind of sludge treating system with sludge in-situ minimizing function described in the utility model, comprise sewage collecting basin, the dosing treatment unit being connected with sewage collecting basin, the dewater filter-press dehydration device of press filtration of the mud by producing after processing by described dosing treatment unit being connected with dosing treatment unit, the mixing shredder assembly being connected with described filter-press dehydration device, the desiccation apparatus that moisture is dried being connected with described mixing shredder assembly, the exhaust gas processing device of processing for waste gas that drying process is produced and dust being connected with the venting port of described desiccation apparatus, the mixed stirring device for the residue sand slag producing after sludge drying is carried out to mix and blend processing being connected with the slag notch of described desiccation apparatus, the sand slag by after mix and blend being connected with described mixed stirring device is made the baking-free brick-making device of finished bricks.

Further improve, in described mixing shredder assembly, be provided with block the cake after processed mud is broken up to broken screw blade.

Further improve, described desiccation apparatus is mummification boiler.

The beneficial effects of the utility model are:

The utility model is applicable to existing municipal wastewater treatment system to carry out upgrading very much, and strong adaptability, can the existing Sewage treatment systems of slitless connection and newly-built Sewage treatment systems, treatment stage carry out smelly eliminating sterilization, improved surrounding enviroment; Can realize zero of mud and dispatch from the factory by increasing this system, reduce greatly sludge treatment cost; This system floor space is little, simple to operate simultaneously, thereby operation cost is low, is applicable to all types of sewage works; The sludge reduction of whole system, average annual sludge output is the 15-20% of original system; Sludge volume after treatment is little, recoverable.

Brief description of the drawings

Fig. 1 is schematic flow sheet of the present utility model.

Embodiment

As shown in Figure 1, a kind of sludge treating system with sludge in-situ minimizing function described in the utility model, comprise sewage collecting basin 1, the dosing treatment unit 2 being connected with sewage collecting basin 1, the dewater filter-press dehydration device 3 of press filtration of the mud by processing 2 rear generations by described dosing treatment unit being connected with dosing treatment unit 2, the mixing shredder assembly 4 being connected with described filter-press dehydration device 3, the desiccation apparatus that moisture is dried 5 being connected with described mixing shredder assembly 4, the exhaust gas processing device 6 of processing for waste gas that drying process is produced and dust being connected with the venting port of described desiccation apparatus 5, be connected with the slag notch of described desiccation apparatus 5 for the residue sand slag producing after sludge drying being carried out to the mixed stirring device 7 of mix and blend processing, the sand slag by after mix and blend being connected with described mixed stirring device 7 is made the baking-free brick-making device 8 of finished bricks.

Integral part of the present utility model and function thereof:

(1) dosing treatment unit:

Be the pre-treatment of mud, mud is better flocculated, remove the peculiar smell of mud simultaneously.

(2) filter-press dehydration device:

Be dewatering system, by the sludge dewatering system technology of CGSP ultra-high voltage ultravacuum, make that the water ratio of mud is minimum is down to 48%, the volume and weight of mud is significantly reduced, the water qualified discharge after treatment that dewatering system produces.

(3) mix shredder assembly:

To be delivered to mixing shredder assembly through dewatering unit mud after treatment, by the screw blade in device, block cake after processed mud is broken up to fragmentation, add by a certain percentage the high combustion of environmental protection material simultaneously, stir by revolution, by the mud of pulverizing and the sufficient mix and blend of high combustion material.

(4) desiccation apparatus:

Can be efficiently the water ratio of mud be reduced by mummification boiler, minimum can mummification to water ratio 15% left and right, by the pyroprocessing in drying process, objectionable impurities in mud and peculiar smell are removed simultaneously, thereby have been reduced the volume of mud and contained nuisance.

(5) exhaust gas processing device:

Be exhaust treatment system, can effectively dispose by exhaust gas processing device the waste gas producing in drying process and dispose a small amount of dust of carrying secretly in waste gas simultaneously, final qualified discharge.

(6) mixed stirring device:

The residue sand slag producing after sludge drying, processes by this device, in the process of processing, adds the required tackiness agent of baking-free brick-making, and the subsidiary material such as colorant finally make sand slag after mummification reach the standard of baking-free brick-making.

(7) baking-free brick-making device:

Be baking-free brick-making equipment, by this equipment, the sand slag after mix and blend finally made to unburned finished bricks, finished bricks can be used for municipal administration, factory, and the views such as building are paved the way, and finally reach the target that mud zero dispatches from the factory.

table 1 is the operating parameter comparison of common process and the utility model technique

The utility model provides a kind of sludge treating system with sludge in-situ minimizing function; the above is only preferred implementation method of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model principle; can also make some improvement, these improve and also should be considered as protection domain of the present utility model.

Claims

1. one kind has the sludge treating system of sludge in-situ minimizing function, it is characterized in that: comprise sewage collecting basin (1), the dosing treatment unit (2) being connected with sewage collecting basin (1), be connected with dosing treatment unit (2) by the filter-press dehydration device (3) of the press filtration of dewatering by the mud producing after described dosing treatment unit processing (2), the mixing shredder assembly (4) being connected with described filter-press dehydration device (3), the desiccation apparatus that moisture is dried (5) being connected with described mixing shredder assembly (4), the exhaust gas processing device (6) of processing for waste gas that drying process is produced and dust being connected with the venting port of described desiccation apparatus (5), be connected with the slag notch of described desiccation apparatus (5) for the residue sand slag producing after sludge drying being carried out to the mixed stirring device (7) of mix and blend processing, the sand slag by after mix and blend being connected with described mixed stirring device (7) is made the baking-free brick-making device (8) of finished bricks.

2. the sludge treating system with sludge in-situ minimizing function according to claim 1, is characterized in that, is provided with block the cake after processed mud is broken up to broken screw blade in described mixing shredder assembly (4).

3. the sludge treating system with sludge in-situ minimizing function according to claim 1, is characterized in that, described desiccation apparatus (5) is mummification boiler.