CN205076955U - Excess sludge of treatment of domestic sewage factory resource comprehensive utilization system that exempts from to dewater - Google Patents

Abstract

The utility model provides an excess sludge of treatment of domestic sewage factory resource comprehensive utilization system that exempts from to dewater, including sludge thickening unit and 4 extraction units, sludge thickening unit and 4 extraction units are connected in proper order step by step. The utility model discloses after going into the excess sludge pump concentrated pond and utilize self gravity to carry out the nature concentration to mud, directly extract bottom thickened sludge and develop the utilization, need not carry out expression dewatering to mud, save the dehydration link of mud, reduce energy consumption, the mud residue that draws each grade is is again developed and used step by step, realizes the resource comprehensive utilization to mud, and the mud residue after will extracting and any alkaline amino acid digest carry out response preparation to become amino acid slowly -releasing silico -calcium fertile, regard as flocculating agent or corrosion inhibitor to use the supernatant that extracts, can realize the high added value utilization to mud. The utility model discloses simple structure, easy to carry out, low cost, excellent in use effect.

Description

One way of life sewage treatment plant residual mud exempts from dehydration comprehensive utilization of resources system

Technical field

The utility model relates to Solid Waste Treatment and Resources and utilizes field, and especially one way of life sewage treatment plant residual mud exempts from dehydration comprehensive utilization of resources system.

Background technology

In recent years, along with the quickening of urbanization process, municipal sewage treatment amount increases substantially.According to statistics display, so far urban wastewater treatment firm more than 3600 seat that puts into operation of China, urban wastewater treatment rate is more than 82%, and whole nation year accumulative process town sewage 445 billion cubic meter, produces 3,000 ten thousand tons of wet mud (80% water ratio) every year.Along with the raising of the level of urbanization, continuing to increase of sewage load, mud is by breakthrough 5,000 ten thousand tons.Growing with each passing day of mud generation forms sharp-pointed contradiction with the wretched insufficiency of sludge treatment ability, the serious backwardness that process means, and the process problem of mud has become the Urban Environmental Problem that China cannot avoid.China current urgently more economical, the more sludge treatment of environmental protection and the treatment process of recycling.

Though mud is sewage work's discharge " waste ", but containing the useful matter such as a large amount of protein and polysaccharide in mud, can develop and utilize it, receive the extensive concern of people, develop a lot of sludge treatment and application technology as the second resource.

But in the process of the mud developed at present and application technology as the second resource, the mud after a lot of is all for dehydration, and a large amount of electric energy to be consumed in the press dewatering of mud.In addition, in the application technology as the second resource of current mud, mostly all only a certain useful component in mud is developed, do not consider the comprehensive utilization of resources of mud well, cause the waste of other useful component of mud.To not seeing the dehydration link that omits at present, directly concentration basin excess sludge is carried out to the system of the comprehensive development and utilization of useful component.

Summary of the invention

The purpose of this utility model is: provide one way of life sewage treatment plant residual mud to exempt from dehydration comprehensive utilization of resources system, it can save excess sludge press dewatering link, save the process energy consumption to excess sludge, and the useful component in mud is developed step by step, realize the comprehensive utilization of resources of excess sludge.

The utility model is achieved in that sewage treatment plants excess sludge exempts from dehydration comprehensive utilization of resources system, comprise sludge condensation unit 5 and 4 extraction units, the composition of one-level extraction unit comprises extractor one, whizzer one, residue tank one, filter one and sterilizing unit one; Extractor one is connected with ultrasonic unit one and water tank one, and extractor one and residue tank one are connected with whizzer one respectively, and whizzer one is connected with filter one, and filter one is connected with sterilizing unit one; The composition of secondary extraction unit comprises extractor two, whizzer two, residue tank two, filter two and sterilizing unit two; Extractor two is connected with water tank two, and extractor two and residue tank two are connected with whizzer two respectively, and whizzer two is connected with filter two, and filter two is connected with sterilizing unit two; The residue tank one of one-level extraction unit is connected with the extractor two of secondary extraction unit by e Foerderanlage two; The composition of three grades of extraction units comprises extractor three, whizzer three, residue tank three and filter three; Extractor three is connected with stirrer three and extraction agent storage tank three, and extractor three and residue tank three are connected with whizzer three respectively, and whizzer three is connected with filter three; The residue tank two of secondary extraction unit is connected with the extractor three of three grades of extraction units by e Foerderanlage three; The composition of level Four extraction unit comprises extractor four, drying unit four and packing plant four, and extractor four is connected with stirrer four and hydrolyzed solution hold-up vessel four; The residue tank three of three grades of extraction units is connected with the extractor four of level Four extraction unit by e Foerderanlage four; Extractor two, extractor three and extractor four are all connected with boiler; The composition of sludge condensation unit comprises settling tank, concentration basin and storage mud tank, and settling tank is connected with concentration basin, and concentration basin is connected with storage mud tank, and storage mud tank is connected with extractor one by e Foerderanlage one.

The e Foerderanlage of every grade of extraction unit is equipped with corresponding weighing device.

Owing to have employed above technical scheme, the utility model adopts the structure of level Four extraction unit combination, and sludge condensation unit is set before most previous stage extraction unit, excess sludge is pumped in the concentration basin of sludge condensation unit, utilize self gravitation to mud carry out nature concentrated after, directly extract bottom thickened sludge and develop and utilize, do not need to carry out press dewatering to mud, save the dehydration link of mud, reduce energy consumption; Again the sludge residue that every one-level is extracted is developed step by step, realize the comprehensive utilization of resources to mud; The high value added utilization to mud can be realized.The utility model structure is simple, and easy to implement, with low cost, result of use is good.

Accompanying drawing illustrates,

Accompanying drawing 1 is structural representation of the present utility model.

Embodiment,

Embodiment of the present utility model: one way of life sewage treatment plant residual mud exempts from the structure of dehydration comprehensive utilization of resources system as shown in Figure 1, comprise sludge condensation unit 5 and 4 extraction units, the composition of one-level extraction unit 1 comprises extractor one 1-1, whizzer one 1-2, residue tank one 1-3, filter one 1-4 and sterilizing unit one 1-5; Extractor one 1-1 is connected with ultrasonic unit one 1-7 and water tank one 1-8, extractor one 1-1 and residue tank one 1-3 be connected with whizzer one 1-2 respectively, whizzer one 1-2 is connected with filter one 1-4, and filter one 1-4 is connected with sterilizing unit one 1-5; The composition of secondary extraction unit 2 comprises extractor two 2-1, whizzer two 2-2, residue tank two 2-3, filter two 2-4 and sterilizing unit two 2-5; Extractor two 2-1 is connected with water tank two 2-8, and extractor two 2-1 and residue tank two 2-3 is connected with whizzer two 2-2 respectively, and whizzer two 2-2 is connected with filter two 2-4, and filter two 2-4 is connected with sterilizing unit two 2-5; Residue tank one 1-3 of one-level extraction unit 1 is connected with extractor two 2-1 of secondary extraction unit 2 by e Foerderanlage two 2-6; The composition of three grades of extraction units 3 comprises extractor three 3-1, whizzer three 3-2, residue tank three 3-3 and filter three 3-4; Extractor three 3-1 is connected with stirrer three 3-7 and extraction agent storage tank three 3-8, extractor three 3-1 and residue tank three 3-3 be connected with whizzer three 3-2 respectively, whizzer three 3-2 is connected with filter three 3-4; Residue tank two 2-3 of secondary extraction unit 2 is connected with extractor three 3-1 of three grades of extraction units 3 by e Foerderanlage three 3-6; The composition of level Four extraction unit 4 comprises extractor four 4-1, drying unit four 4-2 and packing plant four 4-3, and extractor four 4-1 is connected with stirrer four 4-7 and hydrolyzed solution hold-up vessel four 4-8; Residue tank three 3-3 of three grades of extraction units 3 is connected with extractor four 4-1 of level Four extraction unit 4 by e Foerderanlage four 4-6; Extractor two 2-1, extractor three 3-1 and extractor four 4-1 are all connected with boiler 6; The composition of sludge condensation unit 5 comprises settling tank 5-1, concentration basin 5-2 and storage mud tank 5-3, and settling tank 5-1 is connected with concentration basin 5-2, and concentration basin 5-2 is connected with storage mud tank 5-3, and storage mud tank 5-3 is connected with extractor one 1-1 by e Foerderanlage one 1-6; The e Foerderanlage of every grade of extraction unit is equipped with corresponding weighing device.

The use procedure of embodiment is such: in sludge condensation unit 5, excess sludge enters concentration basin 5-2 by settling tank 5-1, utilizes natural subsidence to realize sludge condensation, and supernatant liquor is back to settling tank 5-1; By transferpump, concentration basin 5-2 bottom mud is pumped into storage mud tank 5-3 to store for one-level extraction unit 1.

In one-level extraction unit 1, after the mud weighing of the storage mud tank 5-3 of sludge condensation unit 5, be transported in extractor one 1-1 by e Foerderanlage one 1-6, after adding the required water yield by water tank one 1-8, extract under the process of ultrasonic unit one 1-7, extract after terminating and utilize whizzer one 1-2 to be separated by solid-liquid, after supernatant liquor is filtered by filter one 1-4, filtrate is collected after being sterilized by sterilizing unit one 1-5, obtains required product; Isolated solid part, enters residue tank one 1-3 and stores, for secondary extraction unit 2.

In secondary extraction unit 2, after mud in residue tank one 1-3 of one-level extraction unit 1 weighs, be transported in extractor two 2-1 by e Foerderanlage two 2-6, add the required water yield by water tank two 2-8 and extract after being heated by boiler 6, whizzer two 2-2 is utilized to be separated by solid-liquid after extraction terminates, after supernatant liquor is filtered by filter two 2-4, filtrate is collected after being sterilized by sterilizing unit two 2-5, obtains required product; Isolated solid part, enters residue tank two 2-3 and stores, for three grades of extraction units 3.

In three grades of extraction units 3, after weighing the mud in residue tank two 2-3 of secondary extraction unit 2, be transported in extractor three 3-1 by e Foerderanlage three 3-6, by extraction agent storage tank three 3-8, extraction agent is joined in extractor three 3-1, extract after supplying heat by boiler 6 again, in leaching process, in order to make mud contact with extraction agent fully better, stirred by stirrer three 3-7; Utilize whizzer three 3-2 to be separated by solid-liquid after extraction terminates, supernatant liquor is collected filtrate, is obtained required product after being filtered by filter three 3-4; Isolated solid part, enters residue tank three 3-3 and stores, for level Four extraction unit 4.

In level Four extraction unit 4, after weighing the mud in residue tank three 3-3 of three grades of extraction units 3, be transported in extractor four 4-1 by e Foerderanlage four 4-6, by hydrolyzed solution hold-up vessel four 4-8, hydrolyzed solution is joined in extractor four 4-1, supply heat by boiler 6, stirred by stirrer four 4-7 and extract; Extract and after terminating product to be transported to after drying unit four 4-2 dries the requirement reaching required, enter in packing plant four 4-3 and pack, obtain required product.

In embodiment, the equipment adopted, all adopts the commercially available product with similar function, concrete mode of connection between each equipment all adopts the known approaches of prior art, as pipeline, pump etc., those skilled in the art all can select voluntarily, just repeat no more herein.

Described in the utility modelly be not limited to the embodiment described in embodiment, those skilled in the art draw other embodiment according to the technical solution of the utility model, belong to technological innovation scope of the present utility model equally.Obvious those skilled in the art can carry out various change and modification to the utility model and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.

Claims (2)

1. one way of life sewage treatment plant residual mud exempts from dehydration comprehensive utilization of resources system, comprise sludge condensation unit 5 and 4 extraction units, it is characterized in that: the composition of one-level extraction unit (1) comprises extractor one (1-1), whizzer one (1-2), residue tank one (1-3), filter one (1-4) and sterilizing unit one (1-5); Extractor one (1-1) is connected with ultrasonic unit one (1-7) and water tank one (1-8), extractor one (1-1) and residue tank one (1-3) are connected with whizzer one (1-2) respectively, whizzer one (1-2) is connected with filter one (1-4), and filter one (1-4) is connected with sterilizing unit one (1-5); The composition of secondary extraction unit (2) comprises extractor two (2-1), whizzer two (2-2), residue tank two (2-3), filter two (2-4) and sterilizing unit two (2-5); Extractor two (2-1) is connected with water tank two (2-8), extractor two (2-1) and residue tank two (2-3) are connected with whizzer two (2-2) respectively, whizzer two (2-2) is connected with filter two (2-4), and filter two (2-4) is connected with sterilizing unit two (2-5); The residue tank one (1-3) of one-level extraction unit (1) is connected with the extractor two (2-1) of secondary extraction unit (2) by e Foerderanlage two (2-6); The composition of three grades of extraction units (3) comprises extractor three (3-1), whizzer three (3-2), residue tank three (3-3) and filter three (3-4); Extractor three (3-1) is connected with stirrer three (3-7) and extraction agent storage tank three (3-8), and extractor three (3-1) and residue tank three (3-3) are connected with whizzer three (3-2) respectively, and whizzer three (3-2) is connected with filter three (3-4); The residue tank two (2-3) of secondary extraction unit (2) is connected with the extractor three (3-1) of three grades of extraction units (3) by e Foerderanlage three (3-6); The composition of level Four extraction unit (4) comprises extractor four (4-1), drying unit four (4-2) and packing plant four (4-3), and extractor four (4-1) is connected with stirrer four (4-7) and hydrolyzed solution hold-up vessel four (4-8); The residue tank three (3-3) of three grades of extraction units (3) is connected with the extractor four (4-1) of level Four extraction unit (4) by e Foerderanlage four (4-6); Extractor two (2-1), extractor three (3-1) and extractor four (4-1) are all connected with boiler (6); The composition of sludge condensation unit (5) comprises settling tank (5-1), concentration basin (5-2) and storage mud tank (5-3), settling tank (5-1) is connected with concentration basin (5-2), concentration basin (5-2) is connected with storage mud tank (5-3), and storage mud tank (5-3) is connected with extractor one (1-1) by e Foerderanlage one (1-6).

2. sewage treatment plants excess sludge according to claim 1 exempts from dehydration comprehensive utilization of resources system, it is characterized in that: on the e Foerderanlage of every grade of extraction unit, be equipped with corresponding weighing device.