CN104310727A - Secondary sedimentation tank sludge treatment device - Google Patents

Secondary sedimentation tank sludge treatment device Download PDF

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Publication number
CN104310727A
CN104310727A CN201410529053.2A CN201410529053A CN104310727A CN 104310727 A CN104310727 A CN 104310727A CN 201410529053 A CN201410529053 A CN 201410529053A CN 104310727 A CN104310727 A CN 104310727A
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CN
China
Prior art keywords
screen cloth
mud
level
crosses
sludge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410529053.2A
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Chinese (zh)
Inventor
徐炜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changzhou University
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Changzhou University
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Filing date
Publication date
Application filed by Changzhou University filed Critical Changzhou University
Priority to CN201410529053.2A priority Critical patent/CN104310727A/en
Publication of CN104310727A publication Critical patent/CN104310727A/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C02F11/122Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/06Sludge reduction, e.g. by lysis

Abstract

The invention discloses a secondary sedimentation tank sludge treatment device which comprises a rotating cone (1), a built-in rotating cylinder, a water outlet (3), a built-in rotating shaft (4), a sludge extrusion channel (5), an air outlet (6), an air inlet (7), a primary sludge screen (8), a secondary sludge screen (9), a tertiary sludge screen (10) and a quarternary sludge screen (11). The sludge entering the built-in rotating cylinder (2) is rotated into the sludge extrusion channel (5) through the built-in rotating shaft (4); and the extruded sludge falls onto the primary sludge screen (8), is dried by hot air which is introduced through the air inlet (7), falls onto the secondary sludge screen (9), and sequentially repeats the circulation, and finally, the sand flows out from the quarternary sludge screen (11). After the sludge is treated by the device, the water content of the sludge is lower than 1%; and thus, the device has the characteristics of low water content in sludge and the like.

Description

A kind of second pond sludge treatment equipment
Technical field
The present invention relates to a kind of second pond sludge treatment equipment, belong to field of sludge treatment.
Background technology
In general, in order to not cause the secondary pollution of environment, need to add one sludge treatment technique after the second-stage treatment of sewage disposal.The target of sewage disposal realizes by impurities in water being condensed into solid form and being separated from fluid.This concentrated qualitative change is called mud, because containing a large amount of objectionable impuritiess, needs properly to dispose.Sludge treatment device accounts for greatly the 40%-60% initial cost of sewage work, and sludge treatment then accounts for the processing costs of about 50%, also result in out-of-proportion intractability with its economic cost simultaneously.As the treatment process of the mud produced by sewage treatment equipment, general adopt mechanical dehydration process after burned and burning ash landfill carried out the method that processes in landfill disposal field.But, in the method, need during burning to carry out, by pre-treatment appropriately combined to concentration, processed, drying treatment, there is the problem that process needs a large amount of energy to a large amount of moisture in mud.
In addition, at present general mud is 75 ~ 85% according to the amount of moisture in the mud of its proterties after mechanical dehydration process.Water in mud is close to mud particle, its form is generally divided into (1) interstitial water (being full of the water in the space that mud particle surrounds), (2) capillary Bound moisture (being present in the water in the gap of mud particle etc.), (3) surface attachment water (being attached to the water of mud particle surface), (4) internal water (forming the enchylema of the cell of mud particle), wherein think by mechanical dehydration be separated be interstitial water, capillary Bound moisture (general designation interstitial water), be difficult to be separated by mechanical dehydration with the so-called constraint of internal water as surface attachment water.
Be badly in need of thus a kind ofly solving the sludge treatment equipment that water ratio is high, operating process is simple, processing cost is low in the problem of sludge treatment.
Summary of the invention
The technical problem to be solved in the present invention is to provide and a kind ofly can solves the second pond sludge treatment equipment that water ratio is high, operating process is simple, processing cost is low, and the Be very effective of lignin-sludge.
To achieve these goals, a kind of second pond sludge treatment equipment provided by the invention, comprise rotating cone (1), built-in rotating cylinder (2), water outlet (3), built-in turning axle (4), mud squeezing passage (5), air outlet (6), air intake vent (7), one-level mud crosses screen cloth (8), secondary sludge crosses screen cloth (9), three grades of mud crosses screen cloth (10) and level Four mud crosses screen cloth (11), described mud enter into built-in rotating cylinder (2) afterwards by built-in turning axle (4) turn to mud squeezing passage (5), mud drops to one-level mud and crosses on screen cloth (8) after extruding, pass into hot blast to air intake vent (7) mud to be dried drop to secondary sludge cross on screen cloth (9) by crossing screen cloth again, circulate successively, last sand is crossed screen cloth (11) from level Four mud and is flowed out.
Described built-in rotating cylinder (2) barrel dliameter is 8 ~ 10cm.
Described to cross from one-level the screen cloth diameter that screen cloth (8) crosses screen cloth (11) to level Four descending, and the screen cloth diameter that the screen cloth diameter that one-level mud crosses screen cloth (8) is 20 ~ 18mm, secondary sludge crosses screen cloth (9) is 18 ~ 16mm, three grades of mud crosses screen cloth, and (the screen cloth diameter of 10 is the screen cloth diameter that 16 ~ 14mm and level Four mud cross screen cloth (11) is 14 ~ 10mm.
Describedly cross from one-level screen cloth (8) to cross screen cloth (11) angle to level Four and become large successively by little, the setting angle that the setting angle that one-level crosses screen cloth (8) is 45 °, secondary crosses screen cloth (9) is the setting angle that 50 °, the three grades setting angles crossing screen cloth (10) are 55 °, level Four crosses screen cloth (11) is 60 °.
Principle of work of the present invention is: mutually rotated toward opposite direction by rotating cone (1) and built-in rotating cylinder (2), produce a kind of centrifugal force, the sewage in mud is made to depart from parent toward floating under the influence of centrifugal force, the mud simultaneously losing moisture content continues to sink, under the effect that built-in rotating cylinder (2) rotates, dispersion sinker shape mud is by mud pressure channel, being squeezed into granule sludge, to drop to screen cloth diameter be 20 ~ 18mm, setting angle is that the one-level mud of 45 ° is crossed on screen cloth (8), under the blowing of hot blast and under baking, mud granule loses moisture content further and becomes particle, falling into lower one deck screen cloth diameter is 18 ~ 16mm, setting angle is that the secondary sludge of 50 ° is crossed on screen cloth (9), it is 16 ~ 14mm that continuation oven dry particle drops to screen cloth diameter, setting angle is that three grades of mud of 55 ° are crossed on screen cloth (10), finally dropping to screen cloth diameter is 14 ~ 10mm, setting angle is that the level Four mud of 60 ° is crossed on screen cloth (11), last sand flows out.
Application method of the present invention is:
(1) when rotating cone (1) and built-in rotating cylinder (2) are mutually toward when rotating in the other direction, after mud enters into built-in rotating cylinder (2), under the effect of the rotation of built-in turning axle (4), make mud drop to one-level by mud squeezing passage (5) crosses on screen cloth (8), then hot blast is passed into air intake vent (7), one-level is sieved and to be become sand after online mud is dried and drop to secondary by screen cloth and cross on screen cloth (9), work successively, last sand is crossed screen cloth (11) from level Four and is dropped out.
The significant advantage that the present invention has compared with other method is:
(1) rotational of the built-in rotating cylinder that is provided with of this device and built-in turning axle is separated the moisture in mud to be processed and mud and flows to outside device, has the effect that water ratio is low.
(2) body refuse on screen cloth can be dried after passing into hot blast to air intake vent and become sand, have the advantage that method is simple, processing cost is low.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the present invention is described in further detail.
Fig. 1 is structural representation of the present invention.
Wherein, (1) rotating cone; (2) built-in rotating cylinder; (3) water outlet; (4) built-in turning axle; (5) mud squeezing passage; (6) air outlet; (7) air intake vent; (8) one-level mud crosses screen cloth; (9) secondary sludge crosses screen cloth; (10) three grades of mud cross screen cloth; (11) level Four mud crosses screen cloth.
Embodiment
First referring to Fig. 1, a kind of second pond sludge treatment equipment comprises rotating cone (1), built-in rotating cylinder (2), water outlet (3), built-in turning axle (4), mud squeezing passage (5), air outlet (6), air intake vent (7), one-level mud crosses screen cloth (8), secondary sludge crosses screen cloth (9), three grades of mud crosses screen cloth (10) and level Four mud crosses screen cloth (11), described mud enter into built-in rotating cylinder (2) afterwards by built-in turning axle (4) turn to mud squeezing passage (5), mud drops to one-level mud and crosses on screen cloth (8) after extruding, pass into hot blast to air intake vent (7) mud to be dried drop to secondary sludge cross on screen cloth (9) by crossing screen cloth again, circulate successively, last sand is crossed screen cloth (11) from level Four mud and is flowed out.
Described built-in rotating cylinder (2) barrel dliameter is 8 ~ 10cm.
Described to cross from one-level the screen cloth diameter that screen cloth (8) crosses screen cloth (11) to level Four descending, and the screen cloth diameter that the screen cloth diameter that one-level mud crosses screen cloth (8) is 20 ~ 18mm, secondary sludge crosses screen cloth (9) is 18 ~ 16mm, three grades of mud crosses screen cloth, and (the screen cloth diameter of 10 is the screen cloth diameter that 16 ~ 14mm and level Four mud cross screen cloth (11) is 14 ~ 10mm.
Describedly cross from one-level screen cloth (8) to cross screen cloth (11) angle to level Four and become large successively by little, the setting angle that the setting angle that one-level crosses screen cloth (8) is 45 °, secondary crosses screen cloth (9) is the setting angle that 50 °, the three grades setting angles crossing screen cloth (10) are 55 °, level Four crosses screen cloth (11) is 60 °.
Example 1
Mud in a certain river is processed, when rotating cone (1) starts to rotate, mud enters into built-in rotating cylinder (2), rotation due to built-in turning axle (4) can make the moisture in mud and mud be separated, mud can be enter in trapezoidal base (12) by mud squeezing passage (5) the built-in rotating cylinder (2) of 8cm from aperture, space by built-in rotating cylinder (2) flows in water outlet (3) by the water generated, outwards flow out again, successively through over-angle be 45 °, screen cloth diameter is that the one-level mud of 20cm crosses screen cloth (8), then through over-angle be 50 °, screen cloth diameter is that the secondary sludge of 18cm is crossed in screen cloth (9), again through over-angle be 55 °, screen cloth diameter is that three grades of mud of 15cm cross screen cloth (10), eventually passing angle is 60 °, screen cloth diameter is that the level Four mud of 10cm crosses screen cloth (11).The screen cloth crossing screen cloth due to mud is descending, so the volume of mud diminishes gradually.Pass into hot blast to terraced air intake vent (7) again, being blown into and crossing after screen cloth through mud when hot blast, the online body refuse that sieves will be become sand by oven dry, and water ratio is 2%.
Example 2
Mud in a certain river is processed, when rotating cone (1) starts to rotate, mud enters into built-in rotating cylinder (2), rotation due to built-in turning axle (4) can make the moisture in mud and mud be separated, mud can be by mud squeezing passage (5) from aperture the built-in rotating cylinder (2) of 9cm, space by built-in rotating cylinder (2) flows in water outlet (3) by the water generated, more outwards flows out.Then mud successively through over-angle be 46 °, screen cloth diameter is that the one-level mud of 18cm crosses screen cloth (8), then through over-angle be 52 °, screen cloth diameter is that the secondary sludge of 16cm is crossed in screen cloth (9), again through over-angle be 56 °, screen cloth diameter is that three grades of mud of 14cm cross screen cloth (10), eventually pass the level Four mud that angle is 58 °, screen cloth diameter is 12cm and cross screen cloth (11).The screen cloth crossing screen cloth due to mud is descending, so the volume of mud diminishes gradually.Again to passing into hot blast, being blown into and crossing after screen cloth through mud when hot blast, the online body refuse that sieves will be become sand by oven dry, and water ratio is 1.5%.
Example 3
Mud in a certain river is processed, when rotating cone (1) starts to rotate, mud enters into built-in rotating cylinder (2), rotation due to built-in turning axle (4) can make the moisture in mud and mud be separated, mud can be by mud squeezing passage (5) from aperture the built-in rotating cylinder (2) of 10cm, space by built-in rotating cylinder (2) flows in water outlet (3) by the water generated, more outwards flows out.Then mud successively through over-angle be 47 °, screen cloth diameter is that the one-level mud of 17cm crosses screen cloth (8), then through over-angle be 53 °, screen cloth diameter is that the secondary sludge of 15cm is crossed in screen cloth (9), again through over-angle be 57 °, screen cloth diameter is that three grades of mud of 13cm cross screen cloth (10), eventually pass the level Four mud that angle is 59 °, screen cloth diameter is 11cm and cross screen cloth (11).The screen cloth crossing screen cloth due to mud is descending, so the volume of mud diminishes gradually.Air intake vent (7) again to trapezoidal base (12) bottom passes into hot blast, being blown into and crossing after screen cloth through mud when hot blast, and the online body refuse that sieves will be become sand by oven dry, and water ratio is 1%.

Claims (4)

1. a second pond sludge treatment equipment, it is characterized in that: comprise rotating cone (1), built-in rotating cylinder (2), water outlet (3), built-in turning axle (4), mud squeezing passage (5), air outlet (6), air intake vent (7), one-level mud crosses screen cloth (8), secondary sludge crosses screen cloth (9), three grades of mud crosses screen cloth (10) and level Four mud crosses screen cloth (11), described mud enter into built-in rotating cylinder (2) afterwards by built-in turning axle (4) turn to mud squeezing passage (5), mud drops to one-level mud and crosses on screen cloth (8) after extruding, pass into hot blast to air intake vent (7) mud to be dried drop to secondary sludge cross on screen cloth (9) by crossing screen cloth again, circulate successively, last sand is crossed screen cloth (11) from level Four mud and is flowed out.
2. a kind of second pond sludge treatment equipment according to claim 1, is characterized in that: described built-in rotating cylinder (2) barrel dliameter is 8 ~ 10cm.
3. a kind of second pond sludge treatment equipment according to claim 1, it is characterized in that: described to cross from one-level the screen cloth diameter that screen cloth (8) crosses screen cloth (11) to level Four descending, the screen cloth diameter that the screen cloth diameter that one-level mud crosses screen cloth (8) is 20 ~ 18mm, secondary sludge crosses screen cloth (9) is 18 ~ 16mm, three grades of mud crosses screen cloth, and (the screen cloth diameter of 10 is the screen cloth diameter that 16 ~ 14mm and level Four mud cross screen cloth (11) is 14 ~ 10mm.
4. a kind of second pond sludge treatment equipment according to claim 3, it is characterized in that: describedly cross from one-level screen cloth (8) to cross screen cloth (11) angle to level Four and become large successively by little, the setting angle that the setting angle that one-level crosses screen cloth (8) is 45 °, secondary crosses screen cloth (9) is the setting angle that 50 °, the three grades setting angles crossing screen cloth (10) are 55 °, level Four crosses screen cloth (11) is 60 °.
CN201410529053.2A 2014-10-09 2014-10-09 Secondary sedimentation tank sludge treatment device Pending CN104310727A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106638929A (en) * 2016-11-28 2017-05-10 张朝阳 Sewage suction vehicle with three-grade vehicle-mounted sewage treatment device
CN108793651A (en) * 2018-07-02 2018-11-13 湖北工业大学 A kind of riverway sludge fast dewatering solidification equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1177093A (en) * 1997-09-09 1999-03-23 Nippon Steel Corp Treatment of sludge generated in factory
CN101279160A (en) * 2007-04-06 2008-10-08 月岛机械株式会社 Vertical type screw press filtering equipment
CN101575159A (en) * 2009-06-12 2009-11-11 哈尔滨工业大学 Method of intensified denitrification and dephosphorization of urban sewage
CN202849211U (en) * 2012-09-20 2013-04-03 广西汇泰环保科技有限公司 Food waste water treatment system
CN103232137A (en) * 2013-04-25 2013-08-07 西华大学 Paper-making waste water treatment system and treatment process

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1177093A (en) * 1997-09-09 1999-03-23 Nippon Steel Corp Treatment of sludge generated in factory
CN101279160A (en) * 2007-04-06 2008-10-08 月岛机械株式会社 Vertical type screw press filtering equipment
CN101575159A (en) * 2009-06-12 2009-11-11 哈尔滨工业大学 Method of intensified denitrification and dephosphorization of urban sewage
CN202849211U (en) * 2012-09-20 2013-04-03 广西汇泰环保科技有限公司 Food waste water treatment system
CN103232137A (en) * 2013-04-25 2013-08-07 西华大学 Paper-making waste water treatment system and treatment process

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106638929A (en) * 2016-11-28 2017-05-10 张朝阳 Sewage suction vehicle with three-grade vehicle-mounted sewage treatment device
CN108793651A (en) * 2018-07-02 2018-11-13 湖北工业大学 A kind of riverway sludge fast dewatering solidification equipment
CN108793651B (en) * 2018-07-02 2021-05-28 湖北工业大学 River silt rapid dehydration solidification equipment

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Application publication date: 20150128